Surface Water Supply 

of the United States 

1956

Part 1-B. North Atlantic Slope Basins, New 

York to York River

Prepared under the direction of J. V. B. WELLS, Chief, Surface Water Branch

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1'432

Prepared in cooperation with the States 

of Delaware, Maryland, Massachusetts, 

New Jersey, New York, Pennsylvania, 

Vermont, Virginia, and finest Virginia, 

and with other agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1959
UNITED STATES DEPARTMENT OF THE INTERIOR 

FRED A. SEATON, Secretary

GEOLOGICAL SURVEY 

Thomas B. Nolan, Director

For sale by the Superintendent of Documents, U.S. Government Printing Office 

Washington 25, D.C. - Price $2 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation 

with the States of Delaware, Maryland, Massachusetts, New Jersey, 

New York, Pennsylvania, Vermont, Virginia, and West Virginia, and 

with other agencies, by personnel of the Water Resources Division, 

C. G. Paulsen, chief, succeeded by L. B. Leopold, under the general 

direction of J. V. B. Wells, chief, Surface Water Branch, and B. J. 

Peterson, chief, Basic Records Section, succeeded by F. J. Flynn.

The data were collected and computed under supervision of district 

engineers, Surface Water Branch, as follows

D. F. Dougherty__________________________Trenton, N. J. 

A. A. Fischbach, Jr____________________-Charleston, W. Va. 

A. W. Harrington_________________________Albany, N. Y. 

F. F. LeFever, succeeded by J. W. Odell_________College Park, Md. 

H. B. Kinnison, succeeded by C. E. Knox___________Boston, Mass. 

J. W. Mangan, succeeded by J. J. Molloy__________Harrisburg, Pa. 

D. S. Wallace_______________________Charlottesville, Va.

Ill
CALENDAR FOR WATER YEAR 1956

OCTOBER 1955

S M T W T P S 

1

2345678

9 10 11 12 13 14 15

16 17 18 19 20 21 22

23 24 25 26 27 28 29

30 31

JANUARY 1956

S M T W T P S

1234567

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

APRIL 1956

S M T W T F S

1234567

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30

JULY 1956

S M T W T P S

1234567

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

IV

NOVEMBER 1955

5 M T W T P S 

12345

6 7 8 9 10 11 12

13 14 15 16 17 18 19

20 21 22 23 24 25 26

27 28 29 30

FEBRUARY 1956

S M T W T P S 

1234

5 6 7 8 9 10 11 

12 13 14 15 16 17 18 

19 20 21 22 23 24 25 

26 27 28 29

MAY 1956

5 M T W T P S 

12345

6 7 8 9 10 11 12

13 14 15 16 17 18 19

20 21 22 23 24 25 26

27 28 29 30 31

AUGUST 1956

S M T W T F S 

1234

5 6 7 8 9 10 11 

12 13 14 15 16 17 18 

19 20 21 22 23 24 25 

26 27 28 29 30 31

DECEMBER 1955

S M T W T P S 

123

4 5 6 7 8 9 10 

11 12 13 14 15 16 17 

18 19 20 21 22 23 24 

25 26 27 28 29 30 31

MARCH 1956

S M T W T P S 

123

4 5 6 7 8 9 10

11 12 13 14 15 16 17

18 19 20 21 22 23 24

25 26 27 28 29 30 31

JUNE 1956

5 M T W T P S 

1 2

3456789 

10 11 12 13 14 15 16 

17 18 19 20 21 22 23 

24 25 26 27 28 29 30

SEPTEMBER 1956

S M T W T P S 

1

2345678

9 10 11 12 13 14 15

16 17 18 19 20 21 22

23 24 25 26 27 28 29

30
CONTENTS

Page

Scope of work........................................................................ 1

Cooperation.......................................................................... 1

Division of work..................................................................... 2

Definition of terras and abbreviations................................................ 3

Downstream order of listing gaging stations.......................................... 4

Explanation of data.................................................................. 4

Accuracy of field data and computed results.......................................... 8

Publications......................................................................... 9

Records of discharge collected by agencies other than the Geological Survey.......... 13

Hydrologlc conditions................................................................ 13

Gaging-station records ............................................................... 15

Blind Brook basin

Blind Brook at Rye, N. Y........................................................... 15

Beaver Swamp Brook basin

Beaver Swamp Brook near Harrison, N. Y............................................. 16

Mamaroneck River basin

Mamaroneck River at Mamaroneck, N. Y............................................... IV

f

utchlnson River basin

utchinson River at Pelham, N. Y................................................... 18

Bronx River basin

Bronx River at Bronxville, N. Y.................................................... 19

Streams on Long Island

Cedar Swamp Creek at Glen Cove, N. Y............................................... 20

Mill Neck Creek at Mill Neck, N. Y................................................. 21

Cold Spring Brook at Cold Spring Harbor, N. Y...................................... 22

Nissequogue River near Smithtown, N. Y............................................. 23

Peconic River at Riverhead, N. Y................................................... 24

Carmans River at Yaphank, N. Y..................................................... 25

Swan River at East Patchogue, N. Y................................................. 26

Patchogue Creek at Patchogue, N. Y................................................. 27

Connetquot River near Oakdale, N. Y................................................ 28

Champlin Creek at Isllp, N. Y...................................................... 29

Penataquit Creek at Bay Shore, N. Y................................................ 30

Sampawams Creek at Babylon, N. Y................................................... 31

Carlls River at Babylon, N. Y...................................................... 32

Santapogue River at Lindenhurst, N. Y.............................................. 33

Massapequa Creek at Massapequa, N. Y............................................... 34

Wantagh Stream at Wantagh, N. Y.................................................... 35

East Meadow Brook at Preeport, N. Y................................................ 36

Pines Brook at Malverne, N. Y...................................................... 37

Watts Creek at Valley Stream, N. Y................................................. 39

Hudson River basin

Hudson River near Newcomb, N. Y.................................................... 40

Cedar River below Chain Lakes, near Indian Lake, N. Y............................ 41

Hudson River at Gooley, near Indian Lake, N. Y..................................... 42

Indian Lake Reservoir (head of Indian River) near Indian Lake, N. Y.............. 48

Indian River near Indian Lake, N. Y.............................................. 49

Hudson River at North Creek, N. Y.................................................. 50

Schroon River at Riverbank, N. Y................................................. 55

Hudson River at Hadley, N. Y....................................................... 60

Sacandaga River:

East Branch Sacandaga River at Griffin, N. Y................................... 61

Sacandaga River near Hope, N. Y.................................................. 62

Sacandaga Reservoir at Conklingville, N. Y....................................... 63

Sacandaga River at Stewarts Bridge, near Hadley, N. Y............................ 64

Glens Falls feeder at Glens Falls, N. Y.......................................... 69

Glens Falls feeder at Dunham Basin, N. Y......................................... 70

Bond Creek at Dunham Basin, N. Y................................................. 71

Batten Kill at Arlington, Vt..................................................... 72

Batten Kill at Battenville, N. Y................................................. 73

Kayaderosseras Creek (head of Fish Creek):

Glowegee Creek at West Milton, N. Y............................................ 74

Kayaderosseras Creek near West Milton, N. Y...................................... 75

Hooslc River at Adams, Mass...................................................... 76

North Branch Hoosic River at North Adams, Mass................................. 77

Hoosic River near Williamstown, Mass............................................. 78

Green River at Williamstown, Mass.............................................. 79

Little Hoosic River at Petersburg, N. Y........................................ 80

Walloomsac River near North Bennington, Vt..................................... 81

Hoosic River near Eagle Bridge, N. Y............................................. 82

Hudson River at Mechanicville, N. Y................................................ 83

Mohawk River:

Black River Canal (flowing south) near Boonville, N. Y......................... 84

Mohawk River below Delta Dam, near Rome, N. Y.................................... 85

West Canada Creek at Hinckley, N. Y............................................ 86

Ninemile feeder near Holland Patent, N. Y.................................... 87

West Canada Creek at Kast Bridge, N. Y......................................... 88

Mohawk River near Little Falls, N. Y............................................. 89

East Canada Creek at East Creek, N. Y.......................................... 91

Otsquago Creek at Fort Plain, N. Y............................................. 92

Schoharie Creek at Prattsville, N. Y........................................... 93
VI CONTENTS

Gaging-station records Continued 

Hudson River basin Continued

Mohawk River Continued Page 

Schoharie Creek at Burtonsville, N. Y.......................................... 95

Mohawk River at Cohoes, N. Y..................................................... 96

Hudson River at Green Island, N. Y................................................. 98

Poesten Kill near Troy, N. Y..................................................... 100

Kinderhook Creek at Rosstnan, N. Y................................................ 101

Catskill Creek at Oak Hill, N. Y................................................. 102

Esopus Creek at Coldbrook, N. Y.................................................. 103

Rondout Creek near Lowes Corners, N. Y........................................... 104

Chestnut Creek at Grahatnsville , N. Y........................................... 105

Rondout Creek near Lackawack, N. Y............................................... 106

Rondout Creek at Rosendale, N. Y................................................. 107

Walkill River near Unionville, N. Y............................................ 108

Rutgers Creek at Gardnerville, N. Y.......................................... 109

Pochuck Creek near Pine Island, N. Y......................................... 110

Quaker Creek at Florida, N. Y................................................ Ill

Wallkill River at Pellets Island Mountain, N. Y................................ 112

Wallkill River near Phillipsburg, N. Y......................................... 113

Wallkill River at Gardiner, N. Y............................................... 114

Wappinger Creek:

East Branch Wappinger Creek near Clinton Corners, N. Y......................... 115

Wappinger Creek near Clinton Corners, N. Y....................................... 116

Little Wappinger Creek at Salt Point, N. Y..................................... 117

Wappinger Creek near Wapplngers Palls, N. Y....................................... 118

Fishkill Creek at Beacon, N. Y................................................... 119

Croton River at New Croton Dam, near Croton-on-Hudson, N. Y...................... 120

Saw Mill River at Yonkers, N. Y.................................................. 121

Hackensack River basin

Hackensack River at Rivervale, N. J................................................ 122

Pascack Brook at Westwood, N. J.................................................. 123

Hackensack River at New Milford, N. J.............................................. 124

Reservoirs in Hackensack River basin............................................... 125

Diversions from Hackensack River basin........................................... 126

Passaic River basin

Passaic River near Millington, N. J................................................ 126

Passaic River near Chatham, N. J................................................... 127

Rockaway River above reservoir, at Boonton, N. J................................. 128

Rockaway River below reservoir, at Boonton, N. J................................. 129

Whippany River at Morristown, N. J............................................. 130

Pequannock River (head of Pompton River) at Macopin intake dam, N. J............. 131

Wanaque River at Awosting, N. ,J ................................................ 132

Wanaque River at Monks, N. J................................................... 133

Ringwood Creek near Wanaque , N. J............................................ 134

Cupsaw Brook near Wanaque, N. J.............................................. 135

West Brook near Wanaque, N. J................................................ 136

Blue Mine Brook near Wanaque, N. J........................................... 137

Wanaque River at Wanaque, N. J................................................. 138

Ramapo River near Mahwah, N. J................................................. 139

Ramapo River at Pompton Lakes, N. J............................................ 140

Pompton River at Pompton Plains , N. J. ........................................... 141

Passaic River at Little Falls, N. J................................................ 142

Saddle River at Lodl, N. J....................................................... 143

Weasel Brook at Clifton, N. J.................................................... 144

Second River at Belleville, N. J................................................. 145

Reservoirs in Passaic River basin, N. J............................................ 146

Diversions in Passaic River basin, N. J.......................................... 148

Elizabeth River basin

Elizabeth River at Elizabeth, N. J................................................. 149

Rahway River basin

Rahway River near Springfield, N. J................................................ 150

Rahway River at Rahway, N. J....................................................... 151

Robinsons Branch Rahway River at Rahway, N. J.................................... 152

Raritan River basin

South Branch Raritan River near High Bridge, N. J.................................. 153

South Branch Raritan River at Stanton, N. J........................................ 154

Neshanic River:

Walnut Brook near Flemington, N. J............................................. 155

Neshanic River at Reaville, N. J................................................. 156

North Branch Raritan River near Far Hills, N. J.................................. 157

Lamington (Black) River near Pottersville , N. J................................ 158

North Branch Raritan River near Raritan, N. J.................................... 159

Raritan River at Manville, N. J.................................................... 160

Millstone River at Blackwells Mills, N. J........................................ 161

Raritan River at Bound Brook, N. J................................................. 162

Green Brook at Plainfield, N. J.................................................. 163

Lawrence Brook at Farrington Dam, N. J........................................... 164

South River at Old Bridge, N. J.................................................. 165

Navesink River basin

Swimming River (head of Navesink River) near Red Bank, N. J........................ 166

Manasquan River basin

Manasquan River at Squankum, N. J.................................................. 167

Toms River basin

Toms River near Toms River, N. J.... .............................................. 168

Cedar Creek basin

Cedar Creek at Lanoka Harbor, N. J................................................. 169

Mulllca River basin 

Mullica River:

Batsto River at Batsto, N. J. .................................................... 170

Wading River:

Oswego River at Harrisville, N. J.............................................. 171
CONTENTS VII

Gaging-station records Continued

Absecon Creek basin Page

Absecon Creek at Absecon, N. J..................................................... 172

Great Egg Harbor River basin

Great Egg Harbor River at Polsom, N. J............................................. 173

Maurice River basin

Maurice River at Norma, N. J....................................................... 174

Manantico Creek near Millvllle, N. J............................................. 175

Cohansey River basin 

Cohansey River:

Loper Run near Bridgeton, N. J................................................... 176

Delaware River basin

East Branch Delaware River at Margaretville , N. Y.................................. 177

Platte Kill at Dunraven, N. Y.................................................... 178

Mill Brook at Arena, N. Y........................................................ 179

Tremper Kill near Shavertown, N. Y............................................... 180

Coles Clove Kill:

Terry Clove Kill near Pepacton, N. Y........................................... 181

East Branch Delaware River at Downsville, N. Y..................................... 182

East Branch Delaware River at Harvard, N. Y........................................ 183

Beaver Kill near Turnwood, N. Y.................................................. 184

Beaver Kill at Craigie Clair, N. Y............................................... 185

Willowemoc Creek near Livingston Manor, N. Y................................... 186

Little Beaver Kill near Livingston Manor, N. Y............................... 187

Beaver Kill at Cooks Palls, N. Y................................................. 188

East Branch Delaware River at Pishs Eddy, N. Y..................................... 189

West Branch Delaware River at Delhi, N. Y........................................ 190

Little Delaware River near Delhi, N. Y......................................... 191

West Branch Delaware Rive^ at Walton, N. Y....................................... 192

Dryden Creek near Granton, N. Y................................................ 193

Trout Creek near Rock Royal, N. Y.............................................. 194

Trout Creek at Cannonsville, N. Y.............................................. 196

West Branch Delaware River at Stilesville, N. Y.................................. 19V

Cold Spring Creek:

Cold Spring Brook at China, N. Y............................................. 198

Oquaga Creek at Deposit, N. Y.................................................. 199

West Branch Delaware River at Hale Eddy, N. Y.................................... 200

Calllcoon Creek at Callicoon, H. Y............................................... 201

Tenmile River at Tusten, N. Y.................................................... 202

Delaware River above Lackawaxen River, near Barryville, N. Y....................... 203

West Branch Lackawaxen River at Prompton, Pa..................................... 204

Dyberry Creek at Dyberry, Pa................................................... 205

Lackawaxen River near Honesdale, Pa.............................................. 206

Middle Creek near Hawley, Pa................................................... 207

Lackawaxen River at Hawley, Pa................................................... 208

Wallenpaupack Creek at Wilsonville, Pa......................................... 209

Mongaup River near Mongaup, N. Y................................................. 210

Delaware River at Port Jervis, N. Y................................................ 211

Neversink River near Claryville, N. Y............................................ 212

Neversink River at Heverslnk, N. Y............................................... 213

Neversink River at Woodbourne, N. Y.............................................. 214

Neversink River at Oakland Valley, H. Y.......................................... 215

Neversink River at Godeffroy, N. Y............................................... 216

Delaware River at Montague, N. J................................................... 217

Bush Kill at Shoemakers, Pa...................................................... 218

Plat Brook near Platbrookville, N. J............................................. 219

Brodhead Creek at Minisink Hills, Pa............................................. 221

Paulins Kill at Blairstown, N. J................................................. 222

Pequest River at Huntsville, N. J................................................ 223

Pequest River at Pequest, N. J................................................... 224

Beaver Brook near Belvidere, N. J.............................................. 225

Delaware River at Belvidere, N. J.................................................. 227

Lehigh River at Stoddartsville, Pa............................................... 228

Lehigh River at Tannery, Pa...................................................... 229

Mud Run:

Dilldown Creek near Long Pond, Pa............................................ 230

Pohopoco Creek:

Wild Creek at Hatchery, Pa................................................... 231

Pohopoco Creek near Parryville , Pa............................................. 232

Aquashicola Creek at Palmerton, Pa............................................. 233

Lehigh River at Walnutport, Pa................................................... 234

Little Lehigh Creek near Allentown, Pa. ........................................ 235

Jordan Creek at Allentown, Pa................................................ 236

Monocacy Creek at Bethlehem, Pa................................................ 237

Lehigh River at Bethlehem, Pa.................................................... 238

Musconetcong River at outlet of Lake Hopatcong, N. J............................. 240

Musconetcong River near Hackettstown, N. J....................................... 241

Musconetcong River near Bloomsbury, N. J......................................... 242

Delaware River at Riegelsville, N. J............................................... 243

Tohlckon Creek near Pipersville, Pa.............................................. 245

Delaware & Raritan Canal at Kingston, H. J....................................... 247

Delaware River at Trenton, N. J.................................................... 248

Assunpink Creek at Trenton, N. J................................................. 249

Crosswicks Creek at Extonville, N. J............................................. 250

Heshaminy Creek near Langhorne, Pa............................................... 251

North Branch Rancocas Creek at Pemberton, N. J................................... 252

Schuylkill River at Pottsville, Pa............................................... 253

Little Schuylkill River at Tamaqua, Pa......................................... 254

Schuylkill River at Berne, Pa.................................................... 257

Tulpehocken Creek near Reading, Pa............................................. 258

Schuylkill River at Pottstown, Pa................................................ 259

Perkiomen Creek at Graterford, Pa.............................................. 260
VIII CONTENTS

Gaging-station records Continued

Delaware River basin Continued Page 

Schuylkill River at Philadelphia, Pa............................................. 261

Mantua Creek at Pitman, N. J..................................................... 262

Chester Creek near Chester, Pa................................................... 263

Christina River at Coochs Bridge, Del............................................ 264

White Clay Creek above Newark, Del............................................. 265

White Clay Creek near Newark, Del.............................................. 266

Red Clay Creek at Wooddale, Del.............................................. 267

Brandywine Creek at Wilmington , Del............................................ 269

Shellpot Creek at Wilmington, Del............................................ 270

Salem River at Woodstown, N. J................................................... 271

Alloway Creek at Alloway, N. J................................................. 273

Reservoirs in Delaware River basin................................................. 276

Diversions from Delaware River basin............................................. 280

Lelpsic River basin

Leipsic River near Cheswold, Del................................................... 281

Indian River basin 

Indian River:

Cow Bridge Branch;

Stockley Branch at Stockley, Del............................................... 282

Pocomoke River basin

Pocomoke River near Willards, Md................................................... 283

Nassawango Creek near Snow Hill, Md.............................................. 284

Manokln River basin

Manokin Branch near Princess Anne, Md.............................................. 285

Wicomleo River basin 

Wicomico River:

Beaverdam Creek near Salisbury, Md............................................... 286

Nanticoke River basin

Nanticoke River near Bridgeville, Del.............................................. 288

James Branch (head of Laurel River):

Trap Pond Outlet (head of Hitch Pond) near Laurel, Del......................... 289

Laurel River:

Holly ditch near Laurel, Del................................................... 290

Marshy Hope Creek near Adamsville, Del........................................... 291

Faulkner Branch at Federalsburg, Md............................................ 292

Rewastico Creek near Hebron, Md.................................................. 293

Transquaklng River basin 

Transquaking River;

Chicamacomico River near Salem, Md............................................... 294

Choptank River basin 

Choptank River:

Culbreth Marsh ditch near Chapeltown, Del........................................ 295

Choptank River near Greensboro, Md................................................. 296

Tuckahoe Creek near Ruthsburg, Md................................................ 297

Kings Creek:

Beaverdam Branch at Matthews, Md............................................... 298

Wye River basin 

Wye River:

Wye East River:

Sallie Harris Creek near Carmichael, Md........................................ 299

Chester River basin 

Chester River: 

Unicorn Branch near Millington, Md............................................... 300

Morgan Creek near Kennedyville, Md............................................... 301

Southeast Creek at Church Hill, Md............................................... 302

Sassafras River basin 

Sassafras River:

Jacobs Creek near Sassafras, Md.................................................. 303

Elk River basin

Big Elk Creek (head of Elk River) at Elk Mills, Md................................. 304

Little Elk Creek at Childs, Md................................................... 307

Northeast River basin

Northeast Creek (head of Northeast River) at Leslie, Md............................ 308

Susquehanna River basin 

Susquehanna River:

Oaks Creek at Index, N. Y........................................................ 309

Susquehanna River at Colliersville, N. Y........................................... 310

Charlotte Creek at Davenport Center, N. Y........................................ 311

Otego Creek near Oneonta, N.-Y................................................... 312

East Sidney Reservoir at East Sidney, N. Y....................................... 313

Ouleout Creek at East Sidney, N. Y............................................... 314

Susquehanna River at Unadilla, N. Y................................................ 315

Unadilla River near New Berlin, N. Y............................................. 316

Great Brook:

Sage Brook near South New Berlin, N. Y....................................... 317

Butternut Creek at Morris, N. Y................................................ 318

Unadilla River at Rockdale, N. Y................................................. 319

Susquehanna River at Conklin, N. Y................................................. 320

Chenango River at Sherburne, N. Y................................................ 321

Canasawacta Creek near South Plymouth, N. Y.................................... 322

Chenango River at Greene, N. Y................................................... 324

Genegantslet Creek at Smithville Flats, N. Y................................... 325

East Branch Tioughnioga River: 

Labrador Creek:

Shackham Brook near Truxton, N. Y.......................................... 326

Albright Creek at East Homer, N. Y........................................... 327

Tioughnioga River at Cortland, N. Y............................................ 328

Otselic River at Cincinnatus, N. Y........................................... 329

Otselic River near Upper Lisle, N. Y......................................... 330

Whitney Point Reservoir at Whitney Point, N. Y............................... 331
CONTENTS IX

Gaging-station records Continued 

Susquehanna River basin Continued

Chenango River Continued Page

Tioughnioga River at Itaska, N. Y.............................................. 332

Chenango River near Chenango Forks, N. Y......................................... 333

Susquehanna River at Vestal, N. Y.................................................. 334

Owego Creek near Owego, N. Y..................................................... 335

Catatonk Creek: 

South Branch Catatonk Creek:

Dean Creek at Spencer, N. Y................................................ 336

Susquehanna River near Waverly, N. Y............................................... 337

Tioga River (head of Chemung River):

Corey Creek near Mainesburg, Pa................................................ 338

Mill Creek:

Elk Run near Mainesburg, Pa.................................................. 339

Tioga River at Tioga, Pa......................................................... 340

Crooked Creek at Tioga, Pa..................................................... 341

Cowanesque River near Lawrenceville, Pa........................................ 342

Tioga River at Lindley, N. Y..................................................... 343

Arkport Reservoir near Arkport, N. Y........................................... 344

Canisteo River at Arkport, N. Y................................................ 345

Canacadea Creek:

Karr Valley Creek: at Almond, ¥. Y.......................................... 346

Almond Reservoir near Almond, N. Y........................................... 347

Canacadea Creek near Hornell, N. Y........................................... 348

Canisteo River below Canacadea Creek, at Hornell, N. Y......................... 349

Canisteo River at West Cameron, N. Y........................................... 350

Tuscarora Creek near South Addison, N. Y..................................... 351

Tioga River near Erwins, N. Y.................................................... 352

Cohocton River at Cohocton, N. Y............................................... 353

Fivemile Creek near Kanona, N. Y............................................. 354

Mud Creek near Savona, N. Y.................................................. 355

Cohocton River near Campbell, N. Y............................................. 356

Chemung River:

Newtown Creek at Elmira, N. Y.................................................. 357

Chemung River at Chemung, N. Y................................................... 358

Susquehanna River at Towanda, Pa................................................... 360

Towanda Creek near Monroeton, Pa................................................. 361

Mehoopany Creek:

North Fork Mehoopany Creek near Lovelton, Pa................................... 363

Tunkhannock Creek at Dixon, Pa................................................... 364

Lackawanna River at Archbald, Pa................................................. 365

Lackawanna River at Old Forge, Pa................................................ 366

Susquehanna River at Wilkes-Barre, Pa.............................................. 367

Toby Creek at Luzerne, Pa........................................................ 370

Solomon Creek at Wilkes-Barre, Pa. ............................................... 371

Wapwallopen Creek near Wapwallopen, Pa........................................... 372

Fishing Creek near Bloomsburg, Pa................................................ 373

Little Fishing Creek at Eyers Grove, Pa........................................ 374

Susquehanna River at Danville, Pa.................................................. 375

West Branch Susquehanna River at Bower, Pa....................................... 378

West Branch Susquehanna River near Curwensville, Pa.............................. 379

Clearfield Creek at Dimeling, Pa............................................... 380

Moshannon Creek at Osceola Mills, Pa........................................... 381

West Branch Susquehanna River at Karthaus, Pa. ................................... 382

Bennett Branch Sinnemahoning Creek:

Driftwood Branch Sinnemahoning Creek at Sterling Run, Pa..................... 383

Sinnemahoning Creek at Sinnemahoning, Pa....................................... 384

First Fork Sinnemahoning Creek near Sinnemahoning, Pa........................ 385

Kettle Creek at Cross Fork, Pa................................................. 386

Kettle Creek near Westport, Pa................................................. 387

West Branch Susquehanna River at Renovo, Pa...................................... 388

North Bald Eagle Creek:

Spring Creek near Axemann, Pa................................................ 389

North Bald Eagle Creek below Spring Creek, at Milesburg, Pa.................... 390

North Bald Eagle Creek at Blanchard, Pa........................................ 391

Marsh Creek at Blanchard, Pa................................................. 392

North Bald Eagle Creek at Beech Creek Station, Pa. ............................. 393

Pine Creek at Cedar Run, Pa.................................................... 394

Little Pine Creek:

Blockhouse Creek near English Center, Pa................................... 395

Lycoming Creek near Trout Run, Pa.............................................. 396

West Branch Susquehanna River at Williamsport, Pa................................ 397

Loyalsock Creek at Loyalsock, Pa............................................... 398

Muncy Creek near Sonestown, Pa................................................. 399

West Branch Susquehanna River at Lewisburg, Pa................................... 400

Susquehanna River at Sunbury, Pa................................................... 401

Shamokin Creek at Weigh Scale, Pa................................................ 402

Perm Creek at Perms Creek, Pa.................................................... 403

East Mahantango Creek near Dalmatia, Pa.......................................... 404

Frankstown Branch Juniata River (head of Juniata River) at Williamsburg, Pa...... 405

Little Juniata River at Tipton, Pa............................................. 406

South Bald Eagle Creek at Tyrone, Pa......................................... 407

Little Juniata River at Spruce Creek, Pa....................................... 408

Juniata River at Huntingdon, Pa.................................................. 409

Standing Stone Creek near Huntingdon, Pa....................................... 410

Raystown Branch Juniata River:

Dunning Creek at Belden, Pa.................................................. 411

Brush Creek at Gapsville, Pa................................................. 412

Raystown Branch Juniata River at Saxton, Pa.................................... 413

Great Trough Creek near Marklesburg, Pa...................................... 414

Raystown Branch Juniata River near Huntingdon, Pa.............................. 415
Gaging-station records Continued

Susquehanna River basin Continued Page 

Juniata River at Mapleton Depot, Pa.............................................. 416

Aughwick Creek near Three Springs, Pa.......................................... 417

Kishacoquillas Creek at Reedsville, Pa......................................... 418

Tuscarora Creek near Port Royal, Pa............................................ 419

Cocolamus Creek near Millerstown, Pa........................................... 420

Juniata River at Newport, Pa..................................................... 421

Sherman Creek:

Bixler Run near Loysville, Pa.................................................. 422

Sherman Creek at Shermandale, Pa................................................. 423

Clark Creek near Carsonville, Pa................................................. 424

Conodoguinet Creek near Hogestown, Pa............................................ 425

Susquehanna River at Harrisburg, Pa................................................ 426

Yellow Breeches Creek near Camp Hill, Pa......................................... 427

Swatara Creek at Harper Tavern, Pa............................................... 428

Manada Creek at Manada Gap, Pa................................................. 429

West Conewago Creek near Manchester, Pa.......................................... 430

Codorus Creek at Spring Grove, Pa................................................ 431

South Branch Codorus Creek near York, Pa....................................... 432

Codorus Creek near York, Pa...................................................... 433

Susquehanna River at Marietta, Pa. ................................................. 434

Conestoga Creek at Lancaster, Pa................................................. 435

Octoraro Creek near Rising Sun, Md............................................... 436

Basin Run at Liberty Grove, Md................................................. 438

Deer Creek at Rocks, Md.......................................................... 439

Reservoirs in Susquehanna River basin............................................ 440

Bush River basin 

Bush River:

Bynum Run at Bel Air, Md......................................................... 442

Gunpowder River basin

Gunpowder Palls(head of Gunpowder River):

Little Palls at Blue Mount, Md................................................... 443

Western Run: 

Delaware Run:

Slade Run near Glyndon, Md................................................... 444

Western Run at Western Run, Md................................................... 445

Gunpowder Palls near Carney, Md.................................................... 446

Little Gunpowder Palls at Laurel Brook, Md....................................... 447

Patapsco River basin

East Branch of North Branch Patapsco River: 

West Branch of North Branch Patapsco River:

Cranberry Branch near Westminster, Md.......................................... 448

North Branch Patapsco River at Cedarhurst, Md...................................... 449

North Branch Patapsco River near Marriottsville, Md................................ 450

South Branch Patapsco River at Henryton, Md...................................... 451

Piney Run near Sykesville, Md.................................................. 452

Patapsco River at Hollofield, Md................................................... 453

South River basin

North River (head of South River) near Annapolis, Md............................... 454

Patuxent River basin

Patuxent River near Unity, Md...................................................... 456

Cattail Creek at Roxbury Mills, Md............................................... 457

Patuxent River near Laurel, Md..................................................... 458

Little Patuxent River at Guilford, Md............................................ 459

Little Patuxent River at Savage, Md.............................................. 460

Dorsey Run near Jessup, Md..................................................... 461

Western Branch near Largo, Md.................................................... 462

Potomac River basin

North Branch Potomac River at Kitzmiller, Md....................................... 463

Savage River near Barton, Md..................................................... 464

Crabtree Creek near Swanton, Md................................................ 465

Savage River below Savage River Dam, near Bloomington, Md........................ 466

North Branch Potomac River at Luke, Md............................................. 467

Georges Creek at Franklin, Md.................................................... 468

New Creek near Keyser, W. Va..................................................... 469

North Branch Potomac River at Pinto, Md............................................ 470

Wills Creek below Hyndman, Pa.................................................... 471

Wills Creek near Cumberland, Md.................................................. 472

North Branch Potomac River near Cumberland, Md..................................... 474

Evitts Creek near Centerville, Pa................................................ 475

Patterson Creek near Headsville, W. Va........................................... 476

South Branch Potomac River at Franklin, W. Va.................................... 477

North Pork of South Branch Potomac River at Cabins, W. Va...................... 478

South Branch Potomac River near Petersburg, W. Va................................ 479

Mill Creek:

South Mill Creek: 

Spring Run:

Big Spring at Masonville, W. Va.......................................... 480

South Pork of South Branch Potomac River at Brandywine, W. Va.................. 481

South Pork of South Branch Potomac River near Moorefield, W. Va................ 482

South Branch Potomac River near Springfiled, W. Va............................... 483

Town Creek:

Sawpit Run near Oldtown, Md.................................................. 484

Potomac River at Paw Paw, W. Va.................................................... 485

Cacapon River near Great Cacapon, W. Va.......................................... 486

Little Tonoloway Creek near Hancock, Md.......................................... 487

Potomac River at Hancock, Md....................................................... 488

Back Creek near Jones Springs, W. Va............................................. 489

Conococheague Creek at Fairview, Md.............................................. 490

Opequon Creek near Berryville, Va................................................ 491

Abrams Creek near Winchester, Va............................................... 492
'CONTENTS XI

Gaging-station records Continued

Pototnac River basin Continued Page 

Opequon Creek near Martinsburg, W. Va............................................ 493

Tuscarora Creek above Martinsburg, W. Va....................................... 494

Antietatn Creek near Sharpsburg, Md. .............................................. 495

North River (head of Shenandoah River) near Stokesville, Va...................... 497

North River near Burketown, Va................................................... 498

Middle River: 

Jennings Branch: 

Whiskey Creek:

Castle Spring near Churchville, Va....................................... 499

Bell Creek at Franks Mill, near Staunton, Va................................. 499

Middle River near Grottoes, Va................................................. 500

South River near Waynesboro, Va. ............................................... 501

South Fork Shenandoah River (continuation of North River) near Lynnwood, Va...... 502

Hawksbill Creek:

Yagers Spring near Luray, Va................................................. 502

South Fork Shenandoah River at Front Royal, Va. .................................. 503

Happy Creek at Front Royal, Va................................................. 504

North Fork Shenandoah River at Cootes Store, Va................................ 505

Unnamed Creek:

Plains Mill Spring near New Market, Va..................................... 506

North Fork Shenandoah River at Mount Jackson, Va............................... 506

Stony Creek at Columbia Furnace, Va.......................................... 507

North Fork Shenandoah River near Strasburg, Va................................. 508

Cedar Creek near Winchester, Va. ............................................. 509

Fawcett Run:

Marlboro Spring at Marlboro, Va.......................................... 510

Passage Creek at Buckton, Va................................................. 510

Shenandoah River at Millville, W. Va............................................. 511

Catoctin Creek:

Little Catoctin Creek at Harmony, Md,.......................................... 513

Catoctin Creek near Middletown, Md............................................... 514

Pototnac River at Point of Rocks, Md. ............................................... 516

Monocacy River at Bridgeport, Md................................................. 519

Big Pipe Creek (head of Double Pipe Creek) at Bruceville, Md................... 520

Little Pipe Creek at Avondale, Md............................................ 521

Owens Creek at Lantz, Md....................................................... 522

Hunting Creek at Jimtown, Md................................................... 523

Fishing Creek near Lewistown, Md............................................... 524

Linganore Creek near Frederick, Md............................................. 525

Monocacy River at Jug Bridge, near Frederick, Md................................. 527

Bennett Creek at Park Mills, Md................................................ 528

Goose Creek near Leesburg, Va.................................................... 529

Seneca Creek at Dawsonville, Md.................................................. 530

Difficult Run near Great Falls, Va............................................... 531

Pototnac River near Washington, D. C................................................ 532

Little Falls Branch near Bethesda, Md............................................ 533

Rock Creek at Sherrill Drive, Washington, D. C................................... 534

Northeast Branch Anacostia River at Riverdale, Md................................ 535

Northwest Branch Anacostia River near Colesville, Md........................... 536

Northwest Branch Anacostia River near Hyattsville, Md.......................... 538

Four-mile Run at Alexandria , Va................................................... 539

Cameron Run (head of Hunting Creek) at Alexandria, Va............................ 540

Henson Creek (head of Broad Creek) at Oxon Hill, Md.............................. 541

Accotink Creek near Annandale, Va................................................ 542

Long Branch near Annandale, Va................................................. 543

Accotink Creek near Accotink Station, Va......................................... 544

Cedar Run (head of Occoquan Creek) near Warrenton, Va............................ 545

Cedar Run near Catlett, Va....................................................... 546

Broad Run at Buckland, Va...................................................... 547

Bull Run near Manassas, Va..................................................... 548

Occoquan Creek near Occoquan, Va................................................. 549

Mattawoman Creek near Potnonkey, Md. .............................................. 550

South Fork Quantico Creek near Independent Hill, Va.............................. 551

North Branch Chopawamsic Creek near Independent Hill, Va......................... 552

Middle Fork Chopawamsic Creek near Garrisonville, Va........................... 553

South Branch Chopawamsic Creek near Garrisonville, Va.......................... 554

Aquia Creek:

Beaverdam Run near Garrisonville, Va........................................... 555

Wicomico River:

Chaptico Creek at Chaptico, Md................................................. 556

St. Marys River at Great Mills, Md............................................... 557

Rappahannoek River basin

Rappahannock River near Warrenton, Va.............................................. 558

Hazel River: 

Thornton River:

Rush River at Washington, Va................................................. 559

Thornton River near Laurel Mills, Va........................................... 560

Hazel River at Rixeyville, Va.................................................... 562

Rappahannock River at Remington, Va................................................ 563

Mountain Run near Culpeper, Va................................................... 564

Rapidan River near Ruckersville, Va.............................................. 565

Robertson River near Locust Dale , Va........................................... 566

Rapidan River near Culpeper, Va.................................................. 567

Rappahannock River near Fredericksburg, Va......................................... 568

Cat Point Creek near Montross, Va................................................ 569

Piscataway Creek near Tappahannock, Va........................................... 570

Piankatank River basin

Dragon Run (head of Piankatank River) near Church View, Va......................... 571

Ware River basin

Beaverdam Swamp (head of Ware River) near Ark, Va.................................. 572
XII CONTENTS

Gaging-station records--Continued

York River basin Page

North Anna River (head of York River) near Doswell, Va............................. 573

South Anna River:

Hudson Creek near Boswells Tavern, Va.......................................... 574

South Anna River near Ashland, Va................................................ 575

Pamunkey River (continuation of North Anna River) near Hanover, Va................. 576

Totopotomoy Creek near Atlee, Va................................................. 577

Mattaponi River near Bowling Green, Va........................................... 578

Mattaponi River near Beulahville, Va............................................. 579

Revisions of records for discontinued stations:

Hudson River at Thurman, N. Y...................................................... 580

West Branch Sacandaga River at Blackbridge, near Wells, N. Y....................... 583

Sacandaga River at Northville, N. Y................................................ 585

Hoosic River at Buskirk, N. Y...................................................... 588

Catskill Creek at South Cairo, N. Y................................................ 589

Esopus Creek at Kingston, N. Y..................................................... 592

Lackawaxen River at West Hawley, Pa................................................ 593

McMichaels Creek at Stroudsburg, Pa................................................ 594

Lehigh River at Lehighton, Pa...................................................... 594

Neshaminy Creek at Rushland, Pa.................................................... 595

Ridley Creek at Moylan, Pa......................................................... 595

Oldmans Creek near Woodstown, N. J................................................. 596

Murderkill River near Felton, Del.................................................. 597

Susquehanna River at Wysox, Pa..................................................... 597

Lackawanna River at Moosic, Pa..................................................... 598

Deer Creek near Churchville, Md.................................................... 599

Monocacy River near Frederick, Md.................................................. 600

Northeast Branch Anascostia River at Hyattsville, Md............................... 602

Northwest Branch Anacostia River at Bladensburg, Md................................ 602

Beaverdam Branch Anacostia River at Kenilworth Ave., Washington, D. C.............. 602

Discharge measurements made at points other than gaging stations..................... 603

Index................................................................................ 619

ILLUSTRATIONS

Page 

Figure 1. Gaging-station structures: A, Otselic River at Upper Lisle, N. Y.;

B, Clark Creek near Carsonville, Pa.; C, Mattaponi River near Bowling

Green, Va............................................................... 5

2. Map of the United States showing areas covered by the 18 annual volumes on

surface-water supply.................................................... 11

3. Comparison of discharge at three key gaging stations during 1956 water

year with median discharge for 25-year period........................... 14
SURFACE WATER SUPPLY OP NORTH ATLANTIC SLOPE BASINS, NEW YORK TO YORK RIVER, 1956

SCOPE OF WORK

This volume is one of a series of 18 reports presenting measurements of stage, discharge, and content of streams, lakes, and reservoirs in the United States during the water 

year ending September 30, 1956. Since 1888, when the United States Geological Survey first 

studied streamflow in relation to problems of irrigation, similar measurements have been 

made at more than 13,500 gaging stations in the 48 States and at many others in the Territories of Alaska and Hawaii. On September 30, 1956, the Seological Survey and cooperating 

organizations were maintaining 6,910 gaging stations, including those in Alaska and Hawaii. 

Discharge measurements only were made at many other points in the 1956 water year. The 

name of each stream measured at points other than gaging stations is not listed in the 

index to this report. Only the major river basins in which measurements were made are 

listed under the item "Discharge measurements" in the index.

COOPERATION

Many State, municipal, and private organizations have cooperated with the Seological 

Survey in this work by either furnishing or helping to collect data. Organizations that 

supplied data are acknowledged in station descriptions, and organizations that assisted in 

the collection of data through cooperative agreements with the Survey are:

Delaware: Delaware Seological Survey, J. J. Sroot, State geologist; State Highway 

Department, W. B. McKendrick, Jr., chief engineer, succeeded by R. A. Haber; New 

Castle County Soil Conservation District, M. W. Klair, chairman; city of Newark, 

W. M. Johnson, mayor, succeeded by F. M. Durnall.

Maryland: State Board of Natural Resources, Department of Seology, Mines and 

Water Resources, J. T. Singewald, Jr., director; State Roads Commission, R. H. 

McCain, chairman, succeeded by R. 0. Bonnell; city of Baltimore, B. L. Werner, water 

engineer.

Massachusetts: State Department of Public Works, J. A. Volpe, commissioner.

New Jersey: State Department of Conservation and Economic Development, Division 

of Water Policy and Supply, H. T. Critchlow, director and chief engineer; North 

Jersey District Water Supply Commission, C. H. Capen, chief engineer.

New York: State Conservation Department, L. A. Wehle, commissioner, succeeded by 

S. J. Mauhs; State Department of Public Works, J. W. Johnson, superintendent; State 

Department of Health, Water Pollution Control Board, H. E. Hilleboe, commissioner; 

Board of Hudson River Regulating District, Robert Forrest, chief engineer; Nassau 

County Department of Public Works, J. C. Suibert, commissioner; Suffolk County Board 

of Supervisors, P. A. Hattemer, chairman; Suffolk County Water Authority, F. S. Koons , 

chairman; Westchester County Department of Public Works, J. C. Harding, commissioner; 

Albany Department of Water and Water Supply, W. F. Devane, commissioner; Board of 

Water Supply, City of New York, K. R. Kennison, chief engineer, succeeded by S. M. 

Dore; Department of Water Supply, Sas and Electricity, City of New York, A. C. Ford, 

commissioner.
2 SURFACE WATER SUPPLY, 1956, PART 1-B

Pennsylvania: State Department of Forests and Waters, M. K. Goddard, secretary, 

through the Water and Power Resources Board, Thomas Mathews, chief engineer, succeeded 

by B. D. Murphy; State Department of Agriculture, W. L. Henning, secretary, through the 

Soil Conservation Commission, W. S. Hager, executive secretary; city of Bethlehem, 

E. E. Schaffer, mayor, through A. N. Wiegner, city engineer; and Harrisburg Department 

of Public Safety, R. H. Lyon, Jr., director.

Vermont: Water Conservation Board, R. H. Thieme, commissioner.

Virginia: State Department of Conservation and Development, R. V. Long, director; 

State Department of Highways, J. A. Anderson, commissioner; city of Staunton, Seth 

Burnley, city manager; and city of Alexandria, I. F. Willard, city manager.

West Virginia: State Public Service Commission, H. W. Hanna, Jr., chairman; State 

Water Commission, D. B. Fleming, chairman.

Assistance in the form of funds or services was given by the Corps of Engineers, Department of the Army, in collecting records published herein for 128 gaging stations, of which 

3 were in Delaware, 1 in the District of Columbia, 15 in Maryland, 1 in Massachusetts, 2 in 

New Jersey, 44 in New York, 32 in Pennsylvania, 22 in Virginia, and 8 in West Virginia.

Assistance was also furnished by the Weather Bureau of the United States Department of 

Commerce; National Park Service of the United States Department of the Interior; the Atomic 

Energy Commission; Post engineer, Fort Belvoir; and Marine Corps Schools, Quantico. 

The following organizations aided in collecting records: 

Delaware: Brandywine Valley Association.

Maryland: Upper Potomac River Commission; Washington Suburban Sanitary Commission; 

municipalities of Bel Air, Cumberland, Frederick, and Salisbury; Celanese Corporation 

of America; Congoleum-Nairn Inc.; Kelly-Springfield Tire Co.; Potomac Edison Co.; and 

West Virginia Pulp and Paper Co.

New Jersey: Bergen County; Municipalities of Atlantic City, Jersey City, Newark, 

New Brunswick, and Paterson; American Cyanamid Co.; Delaware & Raritan Canal Co.; 

E. I. du Pont de Nemours & Co.; Hackensack Water Co.; Monmouth Consolidated Water Co.; 

Morris Canal & Banking Co.; Passaic Valley Water Commission; and Taylor-Wharton Iron 

& Steel Co.

New York: Municipalities of Harrison, Mamaroneck, Rye, Tarrytown, and Yonkers; 

Central Hudson Gas & Electric Corp.; Dutchess Bleachery, Inc.; Ford Motor Co.; Indian 

River Co.; New York State Gas & Electric Corp.; Niagara Mohawk Power Corp.; and Rockland Light & Power Co.

Pennsylvania: Municipalities of Lancaster and Philadelphia; P. H. Glatfelter Co.; 

Palmer Water Co.; Panther Valley Water Co.; Pennsylvania Power & Light Co.; Philadelphia Electric Co.; Philadelphia Suburban Water Co.; Safe Harbor Water Power Corp.; and 

York Water Co.

West Virginia: Potomac Edison Co.

DIVISION OF WORK

The stream-gaging work was done by the Water Resources Division of the Geological Survey, under the direction of personnel shown in the preface. The data for stations in the 

several States were collected and prepared for publication in the district offices listed 

on the following page.
DEFINITION OF TERMS AMD ABBREVIATIONS 3

State District office Address

Delaware................. College Park, Md......... 106 Engineering Building, University of Maryland.

Maryland a/.............. ... .do................... Do.

Massachusetts ............ Boston................... 141 Milk St.

New Jersey............... Trenton.................. 228 Federal Building.

New York b/.............. Albany................... 526 Federal Building.

Pennsylvania c/.......... Harrisburg............... 490 Education Building.

Vermont.................. Boston, Mass ............. 141 Milk St.

Virginia................. Charlottesville.......... Natural Resources Building, University of Virginia.

West Virginia d/......... Charleston............... Ill United States Courthouse.

a/ Including Evibts Creek near Centerville, Pa., Wills Creek below Hyndman, Pa., Potomac River 

at Paw Paw, w. va. and near Washington, D. C., Rock Creek at Sherrill Drive, Washington, D. C., and 

Shenandoah River at Millville, W. Va.

b/ Including Cowanesque River near Lawrenceville, Pa., Crooked Creek at Tioga, Pa., and Tioga 

River at Tioga, Pa.

c/ Except for Cowanesque River near Lawrenceville, Crooked Creek at Tioga, Evitts Creek near 

Centerville, Tioga River at Tioga, and Wills Creek below Hyndman.

d/ Except for Potomac River at Paw Paw and Shenandoah River at Millville.

Information of a more detailed nature than that published for most of the gaging stations given in this report is on file in the district offices listed above. Provisional 

records of discharge prior to publication, and other unpublished data concerning the 

gaging-station records may usually be obtained from the district office.

DEFINITION OF TERMS AND ABBREVIATIONS

The terms of streamflow and other hydrologic data, as used in this report, are defined 

as follows:

Cubic foot per second (cfs) is the rate of discharge of a stream whose channel is 

1 square foot in cross-sectional area and whose average velocity is 1 foot per second.

Cubic feet per second per square mile (cfsm) is the average number of cubic feet of 

water flowing per second from each square mile of area drained, assuming that the runoff 

is distributed uniformly in time and area.

Runoff in inches is the depth to which an area would be covered if all the water draining from it in a given period were uniformly distributed on its surface. The term is used 

for comparing runoff with rainfall, which is also usually expressed in inches.

Acre-foot is the quantity of water required to cover an acre to the depth of 1 foot 

and is equivalent to 43,560 cubic feet. The term is commonly used in relation to storage 

for irrigation.

Cfs-day is the volume of water represented by a flow of 1 cubic foot per second for 

24 hours. It is equivalent to 86,400 cubic feet, 1.983471 acre-feet, or 646,317 gallons, 

and represents a runoff of 0.0372 inch from 1 square mile.

Stage-discharge relation is the relation between gage height and the amount of water 

flowing in a channel, expressed as volume per unit of time.

Control designates a feature downstream from the gage that determines the stagedischarge relation at the gage. This feature may be a natural constriction of the channel, 

a long reach of the channel, or an artificial structure.

Contents is the volume of water in a reservoir. Unless otherwise indicated, volume is 

computed on the basis of a level pool and does not include bank storage.

The drainage area of a stream at a specified location is that area, measured in a horizontal plane, which is so enclosed by a topographic divide that direct surface runoff from 

precipitation normally would drain by gravity into the river above the specified point. 

Figures of drainage area given herein include all closed basins, or noncontributing areas, 

within the area unless otherwise noted.
4 SURFACE WATER SUPPLY, 1956, PART 1-B

WSP is used as an abbreviation for "Water-Supply Paper" in references to previously 

published reports.

DOWNSTREAM ORDER OP LISTING GAGING STATIONS

Beginning with the series of reports for the water year ending September 30, 1951, the 

order of listing gaging-station records was changed. In this report, in a downstream direction along the main stem all stations on a tributary entering above a main-stem station 

are listed before that station. If a tributary enters between two main-stem stations, it 

is listed between them. A similar order is followed in listing stations on first rank, 

second rank, and other ranks of tributaries. To indicate the rank of any tributary on 

which a gaging station is situated and the stream to which it is immediately tributary, 

each indention in the listing of gaging stations in the table of contents of this report 

represents one rank. This downstream order and system of indention show which gaging 

stations are on tributaries between any two stations on a main stem and the rank of the 

tributary on which each gaging station is situated.

The order of listing used before the publication of the 1951 report listed first all 

stations on the main stem from headwaters toward mouth, then, all stations on the uppermost 

tributary to the main stem from the tributary's source to mouth, and then all stations 

from source to mouth of the uppermost tributary to the tributary.

EXPLANATION OP DATA

The base data collected at gaging stations consist of records of stage and measurements 

of discharge. In addition, observations of factors affecting the stage-discharge relation, weather records, and other information are used to supplement base data in determining the daily flow. The records of stage are obtained either from direct readings on 

a nonrecording gage or from a water-stage recorder that gives a continuous record of fluctuations. Measurements of discharge are made with a current meter by the general methods 

adopted by the Geological Survey on the basis of experience in stream gaging since 1888. 

These methods are described in Water-Supply Paper 888 and are also outlined in standard 

textbooks on the measurement of stream discharge. Typical structures in use at gaging 

stations are shown in figure 1.

Rating tables giving the discharge for any stage are prepared from stage-discharge relation curves defined by discharge measurements. If extensions to the rating curves are 

necessary to define the extremes of discharge, they are made on the basis of indirect 

determinations of peak discharge (such as slope-area or contracted-opening determinations, 

computation of flow over dams or weirs, and by other methods), velocity-area studies, and 

logarithmic plotting. The application of the daily mean gage height to those rating 

tables gives the daily mean discharge, from which the monthly and the yearly mean discharge 

are computed. If the stage-discharge relation is subject to change because of frequent or 

continual change in the physical features that form the control, the daily mean discharge 

is determined by the shifting-control method, in which correction factors based on individual discharge measurements and notes by engineers and observers are used in applying 

the gage heights to the rating tables. If the stage-discharge relation for a station is 

temporarily changed by the presence of aquatic growth or debris on the control, the daily 

mean discharge is computed by what is essentially the shifting-control method.
EXPLANATION OP DATA.

A. Otselic River at Upper Lisle, N. Y.

B. Clark Creek near Carsonville, Pa..

C. Mattaponi River near Bowling Green, Va. 

FIGURE 1. GAGING-STATION STRUCTURES

505690 O - 59 - Z
6 SURFACE WATER SUPPLY, 1956, PART 1-B

At some gaging stations the stage-discharge relation is affected by backwater from 

reservoirs, tributary streams, or other sources. This necessitates the use of the slope 

method in which the slope or fall in a reach of the stream is a factor in determining 

discharge. Information requisite for determining the slope or fall is obtained by means 

of an auxiliary gage set at some distance from the base gage. At some stations the stagedischarge relation is affected by changing stage. If so, the rate of change in stage is 

used as a factor in the determination of discharge.

At most gaging stations in the northern part of the United States and at some in the 

mountainous regions of other parts the stage-discharge relation is affected by ice during 

the winter, and it becomes impossible to compute the discharge in the usual manner. Discharge for periods of ice effect is computed on the basis of the gage-height record and 

occasional winter discharge measurements, consideration being given to the available information on temperature and precipitation, notes by gage observers and engineers, and 

comparable records of discharge for other stations in the same or nearby basins. If the 

stage-discharge relation is affected by ice, this information is given in a note to the 

table. No mention is made of occasional days of ice effect if the degree of accuracy of 

daily records is not changed.

The data herein presented generally comprise a description of the station, a skeleton 

rating table, and a table showing the daily discharge and monthly and yearly discharge and 

runoff of the stream. Records are published for the water year which begins on October 1 

and ends on September 30. A calendar for the water year 1956 is shown on page IV for 

the purpose of finding the day of the week for any date.

The description of the station gives the location, drainage area, records available, 

type and history of gages, average discharge, extremes of discharge, general remarks, and 

notations of revisions of the previously published record. The location of the gaging 

station and the drainage area are obtained from the most accurate maps available. River 

mileage, given under "Location" for some stations, is that determined and used by the 

Corps of Engineers unless otherwise noted. Under "Records available" are given the 

periods for which there are published records generally equivalent to those at the present 

site. Under "Gage" are given the type of gage currently in use and the datum of the 

present gage above mean sea level, and a condensed history of the types, locations, and 

datums of previous gages used during the period of records available. Under "Average 

discharge" is given the average discharge for the number of years indicated. It is not 

given for stations having fewer than five complete years of record or for stations where 

changes in water development during the period of record cause the figure to have little 

significance. Under "Extremes" are given the maximum discharge and gage height; the minimum discharge if there is little or no regulation; the minimum daily discharge if there 

is extensive regulation (also the minimum discharge if useful); and the minimum gage 

height (unless it is of no importance). In the first paragraph, the data given are for 

the complete current water year unless otherwise specified. In the second paragraph, the 

data given are for the periods of record within the calendar year dates in the heading 

(not necessarily those for the complete years indicated by the heading dates). Reliable 

information concerning major floods that have occurred outside the period of record are 

given in the third or last paragraph under "Extremes." Unless otherwise qualified, the 

maximum discharge corresponds to the crest stage obtained by use of a water-stage recorder, 

a crest-stage indicator, or a nonrecording gage read at the time of the crest. If the
EXPLANATION OP DATA 7

maximum gage height did not occur at the same time as the maximum discharge, it is given 

separately. Information pertaining to the accuracy of the records and conditions which 

affect the natural flow at the gaging station is given under "Remarks."

Previously published records of some stations have been found to be in error on the 

basis of data or information later obtained. Revisions of such records are usually published along with the current records in one of the annual reports. In order to make it 

easier to find such revised records, a paragraph headed "Revisions (water years)" has been 

added to the description of all stations for which revised records have been published. 

Listed therein are all the reports in which revisions have been published, each followed 

by the water years for which figures are revised in that report. In listing the water 

years only one number is given; for instance, 1933 stands for the water year October 1, 

1932, to September 30, 1933. If no daily, monthly, or annual figures of discharge are 

concerned in the revision, that fact is brought out by notations after the year dates as 

follows: "(M)" means that only the instantaneous maximum discharge was revised; "(m)" 

that only the instantaneous minimum was revised; and "(P)" that only peak discharges were 

revised. If the drainage area has been revised, the report in which the revised figure 

was first published is given. It should be noted that for all stations for which cubic 

feet per second per square mile and runoff in inches are published, a revision of the 

drainage area necessitates corresponding revision of all figures based on the drainage 

area. Revised figures of cubic feet per second per square mile and runoff in inches resulting from a revision of the drainage area only are usually not published in the annual 

series of reports.

Skeleton rating tables are published for all stations except those at which the daily 

discharge for the greater part of the open-water period was determined by the shiftingcontrol method, the slope method, or other special methods involving an equivalent adjustment to the gage height of more than one-tenth foot. Skeleton rating tables are generally 

not published for stations on canals.

For stations equipped with water-stage recorders, except those on streams subject to 

sudden or rapid fluctuation, the daily table gives the discharge corresponding to the 

daily mean gage height. For stations subject to such fluctuation the daily mean gage 

height may not indicate the true daily mean discharge, which must be obtained by averaging 

the discharge for parts of the day or by using the discharge integrator, an instrument for 

obtaining the daily mean discharge from a continuous gage-height graph and containing, as 

an essential element, a curve representing the stage-discharge relation at the station. 

For stations equipped with nonrecording gages, the table of daily discharge gives the 

discharge corresponding to once-daily readings of the gage, or to the mean of twice-daily 

readings, or to the mean gage height determined from gage-height graphs based on gage 

readings. For periods of rapidly changing stage, the daily mean discharge is determined 

from gage-height graphs based on gage readings, the frequency of which is stated in the 

station description.

In the table of daily discharge, the figures for the maximum day and the minimum day 

for each month are underlined. If the figure is repeated, it is underlined only on the 

first day of its occurrence.

In the monthly summary below the daily table, the line headed "Total" gives the sum of 

the daily figures; it is the total cfs-days for the month. The line headed "Mean" gives 

the average flow in cubic feet per second during the month. Runoff for the month may be
8 SURFACE WATER SUPPLY, 1956, PART 1-B

expressed In cubic feet per second per square mile (line headed "Cfsm"), or in inches (line 

headed "in."), or in acre-feet (line headed "Ac-ft"). Figures for cubic feet per second 

per square mile and runoff in inches are omitted if the drainage area includes large noncontributing areas, or if the average annual rainfall over the drainage basin is usually 

less than 20 inches.

In the yearly summary below the monthly summary, the figures of maximum are the maximum 

daily discharges, not the momentary discharges when the water was at crest stage. Likewise, the minimums in this summary are the minimum daily discharges.

Peak discharges and the times of their occurrence and corresponding gage heights of 

most stations are listed below the table of daily and monthly discharge. All independent 

peaks above the selected base are given. The base discharge, which is given in parentheses, is selected so that an average of about three peaks a year will be presented. 

Peak discharges are not published for canals, ditches, drains, or for any stream for which 

the peaks are subject to substantial control by man.

Footnotes to the table of daily discharge indicate periods when discharge was computed 

or estimated by unusual or special methods during periods of no gage-height record and ice 

effect, or by other effects that reduce the degree of accuracy of the records. Days on 

which discharge measurements were made are indicated by asterisk and footnote unless they 

were made at frequent regular intervals, in which instance the general frequency of discharge measurements is given under "Remarks" in the station description.

For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents or stage is given. A skeleton table of capacity at 

given stages is published each year for all reservoirs for which records are published on 

a daily basis, but is not published for reservoirs for which only monthly data are given.

Discharge measurements and determinations of peak flows made at sites other than gaging 

stations are listed at the end of each report.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of streamflow data depends primarily on (1) the stability of the stagedischarge relation or, if the control is unstable, the frequency of discharge measurements, 

and (2) the accuracy of observations of stage, measurements of discharge, and interpretation of records.

The station description states the degree of accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor", probably 

more than 15 percent. The records of monthly and yearly mean discharge and runoff are, 

in general, more nearly accurate than the daily records.

Runoff at some stations, as indicated by the monthly mean, may vary widely from natural 

runoff, owing to diversion, consumption, regulation by storage, increase or decrease in 

evaporation due to artificial causes, or to other factors. For such stations, figures of 

cubic feet per second per square mile and runoff in inches are not published unless 

storage or diversion records are included to indicate the extent of the regulation or diversion, or unless satisfactory adjustments can be made for changes in contents of reservoirs or for other changes incident to use and control. Evaporation from a reservoir is 

not included in the adjustments for changes in reservoir contents, unless it is so stated. 

Even at those stations where adjustments are made, large errors in computed runoff may
PUBLICATIONS

occur when relatively large negative adjustments are made or when evaporation is large in 

comparison with the observed discharge.

Many gaging stations on streams in the irrigated areas of the United States are situated 

above most of the diversions from those streams, and therefore the discharge recorded does 

not actually show the water supply available at the stations for further development, because water must first be supplied to existing irrigation systems.

PUBLICATIONS

To facilitate publication of the annual series of reports, the area of the United 

States is divided into 14 parts whose boundaries coincide with certain natural drainage 

lines. Formerly, the results of streamflow measurements were published in 14 volumes, one 

for each of the 14 parts. Beginning with the reports for 1951, the records are published 

in 18 volumes, there being 2 volumes each for Parts 1, 2, 3, and 6. The boundaries of the 

various parts are indicated by the following list and the map in figure 2.

Part 1. North Atlantic slope basins, in two volumes:

A, North Atlantic slope basins, Maine to Connecticut. 

B, North Atlantic slope basins, New York to York River.

2. South Atlantic slope and eastern Gulf of Mexico basins, in two volumes: 

A, South Atlantic slope basins, James River to Savannah River. 

B, South Atlantic slope and eastern Gulf of Mexico basins, Ogeechee River 

to Pearl River.

3. Ohio River basin, in two volumes:

A, Ohio River basin except Cumberland and Tennessee River basins. 

B, Cumberland and Tennessee River basins.

4. St. Lawrence River basin.

5. Hudson Bay and upper Mississippi River basins.

6. Missouri River basin, in two volumes:

A, Missouri River basin above Sioux City, Iowa. 

B, Missouri River basin below Sioux City, Iowa.

7. Lower Mississippi River basin.

8. Western Gulf of Mexico basins.

9. Colorado River basin.

10. The Great Basin.

11. Pacific slope basins in California.

12. Pacific slope basins in Washington and upper Columbia River basin.

13. Snake River basin.

14. Pacific slope basins in Oregon and lower Columbia River basin.

Water-supply papers and other publications of the Geological Survey containing data on 

the water resources of the United States may be purchased or consulted as follows:

1. Copies may be purchased from the Superintendent of Documents, Government Printing 

Office, Washington 25, D. C., who will, on application, furnish lists giving prices. 

A list of Geological Survey publications may also be obtained by applying to the Director, 

Geological Survey, Washington, D. C.

2. Sets of the reports may be consulted in the libraries of the principal cities in 

the United States.

3. Sets are available for consultation in the offices of the Water Resources Division 

of the Geological Survey. Addresses of the offices in the area covered by this report are 

given on page 3.

Early records of the flow of streams in the United States are published in the reports 

listed below. In many of these reports records for years earlier than those indicated have 

been included for some streams.

Streamflow data for the years 1884-1901, in reports of the Geological Survey 

(A - Annual Report; B " Bulletin)

Report

10th A, pt. 

llth A, pt.

B 131.

Z 

Z

Character of data

Descriptive information only. 

Monthly discharge and descriptive information. ..............

Descriptions, measurements, eaee helehts. and ratines. ......

Year

1884 to September 1890.

1893-94.
10 SURFACE WATER SUPPLY, 1956., PART 1-B

Streamflow data for the years 1884-1901, in reports of the Geological Survey Continued 

(A Annual Report; B = Bulletin)

Report Character of data

16th A, pt. 2 

B 140........

WSP 11.......

18th A, pt. 4 

WSP 15.......

19th A, pt. 4 

WSP 27.......

20th A, pt. 4 

WSP 35 to 39. 

21st A, pt. 4 

WSP 47 to 52. 

22d A, pt. 4. 

WSP 65, 66... 

WSP 75.......

Descriptive Information only.

Descriptions, measurements, gage heights, ratings, and 

monthly discharge.

Gage heights................................................

Descriptions, measurements, ratings, and monthly discharge..

Descriptions, measurements, and gage heights of streams east 

of the Mississippi River, and Missouri River and tributaries above Kansas River.

Descriptions, measurements, and gage heights of streams west 

of the Mississippi River, except Missouri River and tributaries above Kansas River.

Descriptions, measurements, ratings, and monthly discharge..

Measurements, ratings, and gage heights of streams east of 

the Mississippi River, and Missouri River and tributaries.

Measurements, ratings, and gage heights of streams west of 

the Mississippi River, except Missouri River and tributaries.

Monthly discharge...........................................

Descriptions, measurements, gage heights, and ratings.......

Monthly discharge...........................................

Descriptions, measurements, gage heights, and ratings.......

Monthly discharge...........................................

Descriptions, measurements, gage heights, and ratings.......

Monthly discharge...........................................

1896.

1895-96.

1897.

1897.

1898.

1898.

1899.

1899.

1900.

1900.

1901.

1901.

Reports on surface-water supply containing records from 1899 to date for drainage 

basins in this report are listed below. The data for any particular gaging station will, 

in general, be found in the reports covering the years during which the station was maintained.

Numbers of water-supply papers containing results of stream measurements in North Atlantic 

slope basins, New York to York River, 1899-1956

Year

1899

1900

1901

1902

1903

1904

1905

1906

1907-8

1909

1910

1911

WSP

35

47,a48

65,75

82

97

bl25,c!26

bl66,c!67

b'202,c203

241

261

281

301

Year

1912

1913

1914

1915

1916

1917

1918

1919-20

1921

1922

1923

1924

WSP

321

351

381

401

431

451

471

501

521

541

561

581

Year

1925

1926

1927

1928

1930

1931

1932

1933

1934

1935

1936

WSP

601

621

641

661

681

696

711

726

741

756

781

801

Year

1937

1938

1939

1940

1941

1942

1943

1944

1945

1946

1947

1948

WSP

821

851

871

891

921

951

971

1001

1031

1051

1081

1111

Year

1949

1950

1951

1952

1953

1954

1955

1956

WSP

1141

1171

1202

1232

1272

1332

1382

1432

a Schuylkill River to James River, 

b Hudson River to Delaware River. 

c Susquehanna River to Yadkin River.

The records at most of the stations discussed in these reports extend over many years. 

Discharge measurements at many points other than regular gaging stations have been made 

each year and are published at the end of each report. The streams and points of measurement are listed in the same order as the streams and gaging stations in the body of the 

report. An index of the records obtained before 1904 has been published in Water-Supply 

Paper 119.

Each of the reports on the surface-water supply for the year 1939 (Water-Supply Paper 

871 for the North Atlantic slope basins, New York to York River) contains, for the area 

included in that report, a summary of yearly discharge at gaging stations at which 10 or 

more complete years of record had been collected. These summaries were reprinted separately.

Reports also have been published that are compilations of records for various areas, 

usually a single State or drainage basin. These reports contain records previously published (some of which may have been revised), as well as some records not contained in the 

annual series of water-supply papers. The table on page 12 lists reports of this type for 

the North Atlantic slope basins, New York to York River.
PUBLICATIONS 11
12 SURFACE WATER SUPPLY, 1956, PART 1-B

Reports containing compilations of records of discharge by States and drainage basins

WSP Period Report

tatlon records.

Records of discharge have been published also in State reports. Some of these are not 

contained in the publications of the Geological Survey or are revisions of records previously published in its water-supply papers. The following table contains a list of 

these reports for the area covered by this report.

State reports containing compilations of records of discharge

State

New Jersey. . . .

Pennsylvania..

Virginia ......

Period

1897-54

1892-1928

1890-1911

1895-1927

Report

major streams In Maryland.

waters of Maryland and the Potomac 

River basin.

sources.

Bull. 1O, Prince Georges County water

resources.

sources.

Garrett County. 

Bull. 14, The water resources of Howard

and Montgomery Counties.

set, Wlcomlco, and Worchester Counties. 

Bull. 17, The water resources of Baltimore and Hartford Counties. i

line, Dorchester, and Talbot Counties. 

Bull. 21, The water resources of Cecil,

Kent, and Queen Annes Counties. 

Bull. 33, Surface water supply of New 

Jersey.

New Jersey.

New Jersey.

of New Jersey. 

Report of Water Supply Commission of 

Pennsylvania .

Bull. 31, Water resources of Virginia....

(Potomac, Rappahannock, and York River 

basins) .

glnia (Potomac, Rappahannock, and York 

River basins).

ginla (Potomac, Rappahannock, and York 

River basins).

Issued by

Water Resources Commission.

and Water Resources. 

Do.

Do.

Do.

Do.

Do.

Do.

Do.

Do.

Do.

Do.

Department of Conservation 

and Development.

Do.

Department of Conservation

and Economic Development. 

Water Supply Commission of 

Pennsylvania. 

Department of Forests and

Waters. 

Virginia Geological Survey. 

Virginia Conservation Commission. 

Department of Conservation

and Development. 

Do.

Note. In addition to the records contained In the reports listed above, the following States have 

Issued annual or biennial reports In which are contained records of discharge: New York (also Board 

of Water Supply, City of New York, and City of Rochester) and Pennsylvania.

The reports listed in the foregoing tables contain the customary records of discharge 

collected during the systematic operation of gaging stations. Detailed information on the 

stage and discharge of many streams during major floods has been included in special reports on these floods published by the Geological Survey or other agencies. The more 

recent of these special reports also contain other pertinent hydrologic information and 

analyses and compilations of data relating to earlier notable floods. The following is 

a list of these reports:

Report Issued by

WSP 88: The Passaic flood of 1902.

WSP 92: The Passaic flood of 1903.

WSP 147: Destructive floods in the United States in 1904.

WSP 162: Destructive floods in the United States in 1905.

WSP 771: Floods in the United States, magnitude and frequency.

WSP 773-E: The New York State flood of July 1935.

WSP 799: The floods of 1936, Part 2, Hudson River to Susquehanna River region. 

WSP 800: The floods of 1936, Part 3, Potomac, James, and upper

Ohio Rivers.

U. S. Geological Survey 

Do. 

Do. 

Do. 

Do. 

Do. 

Do.

Do.
HYDROLOGIC CONDITIONS 13

Special reports on floods published by the Geological Survey and other agencies Continued

WSP 847: Maximum discharges at stream-measurement stations

through September 1938.

WSP 867: Hurricane Floods of September 1938. 

WSP 966: Minor floods of 1938 in North Atlantic States. 

WSP 1134-A: Floods of August 4-5, 1943, In Central West

Virginia. 

WSP 1134-B: Floods of July 18, 1942, in North Central

Pennsylvania.

WSP 1137-1: Summary of floods in the United States during 1950. 

WSP 1227-C: Floods of 1950 and 1951 in the Catskill Mountain

Region, New York.

Cir. 155: New Year flood of 1949 in New York and New England. 

Bull. 10: Flood of June 1949 in Stokesville-Bridgewater area, 

Virginia.

U. S. Geological Survey.

Do. 

Do. 

Do.

Do.

Do. 

Do.

Do. 

Commonwealth of Virginia.

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The table below contains a list of gaging stations for the area covered by this report, 

at which records of discharge were collected during the water year October 1955 to September 1956 by agencies other than the Geological Survey. The records of these stations 

are not contained in publications of the Geological Survey.

Records of discharge collected by agencies other than the Geological Survey

Stream

East Canada Creek. ..... 

Gunpowder Falls ........

Hooslc River. .......... 

Hudson River. .......... 

Sprite Creek. ..........

Location

Inghams , N. Y................... 

Lock Raven, Md. .................

Schaghtlcoke, N. Y. ............. 

Spier Falls , N. Y. .............. 

Below Canada Lake, N. Y.........

Period

1913-56 

1883-1956*

1910-56 

1923- 56*t 

1913-56

Collected by

Niagara Mohawk Power Corp. 

Baltimore Department of Public Works. 

Niagara Mohawk Power. Corp. 

Do. 

Do.

* Monthly means only prior to 1937.

t Records for period 1912-23 published In water-supply papers of Geological Survey.

Note. The Agricultural Research Service, United States Department of Agriculture, has been collecting records of runoff from the following selected areas In the North Atlantic slope basins, Hew 

York to York River: Beginning In 1937, from 4 areas, 13 to 2,215 acres, near Cohocton, N. Y.; beginning In 1941, from 2 areas about 3.5 acres each near College Park, Md.; and beginning In 1951, 

from 4 areas, 30 to 1,57O acres, In Dutchess County, N. Y.

HYDROLOGIC CONDITIONS

In the area covered by this report, several noteworthy floods occurred during water 

year 1956. At many gaging stations in southern New York and in parts of New Jersey and 

Pennsylvania, the flood of October 15-16 was the greatest in 30 to 40 years of record. 

A detailed report of this flood will be published in Water-Supply Paper 1420 (in preparation) . The flood of March 8-9 in upper Susquehanna River In Pennsylvania was outstanding. Record-breaking local floods occurred July 20-21 in the Potomac River tributaries 

and other small streams in central Maryland. Monthly mean discharge of Seneca Creek near 

Dawsonville, Md., was the highest for July in 27 years of record; peak discharge July 21 

was more than lj times the previous maximum. By contrast, the monthly mean discharge of 

Potomac River at Paw Paw, W. Va., was record-low for January; for Rappahannock River at 

Fredericksburg, Va., the lowest in 48 years occurred in May and June. For three key 

gaging stations in the area covered by this report, a comparison of the monthly and 

yearly mean discharges during the 1956 water year with the median discharge for the 

25-year period 1921-45 is shown in figure 3 on the following page.
SURFACE WATER SUPPLY, 1956, PART 1-B

Sacandaga River near Hope, N. Y. 

Drainage area, 491 sq mi.

I

Oct. Nov. Dec. Jan. Feb. Mar. April May June July Aug. Sept. The

year

 8 100

.a

Great Egg Harbor River at Folsom, N. J. 

Drainage area 56.3 sq mi.

&

Oct. Nov. Dec. Jan. Feb. Mar. April May June July Aug. Sept. The

year

6000

5000 §

S. 4000

3000

Potomac River at Paw Paw, W. 1 

Drainage area, 3,109 sq mi.

Oct. Nov. Dec. Jan. Feb. Mar. April May June July Aug. Sept. The

year

Explanation

j: i:i'i;:: :' ': ;:i;;;:: :';: ;| Median of monthly mean discharge for 25-year period 1921-45. 

E^>^x^<j Monthly mean discharge during water year 1956

Figure 3. Comparison of discharge at three key gaging stations during 1956 water year with 

median discharge for 25-year period.
GAGING-STATION RECORDS

BLIND BROOK BASIN 

Blind Brook at Rye, N. Y.

Location. Lat 40°59'00", long 73 C 41'15", on left bank at Rye, Westchester County, just 

upstream from Theodore Fremd Avenue Bridge, a quarter of a mile southwest from New 

York, New Haven, and Hartford Railroad station and 0.85 mile upstream from mean high 

water in Milton Harbor.

Drainage area. 9.20 sq mi.

Records available. November 1943 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage is 13.05 ft above mean 

sea level, datum of 1929 (levels by city of Rye).

Average discharge. 12 years (1944-56), 15.86 cfs.

Extremes. Maximum discharge during year, 1,360 cfs Oct. 16 (gage height, 9.62 ft); minimum daily, 0.64 cfs Aug. 18.

1943-56: Maximum discharge, that of Oct. 16, 1955; minimum, 0.12 cfs July 5, 1953 

(gage height, 0.805 ft), result of temporary regulation.

Remarks.--Records excellent except those for periods of backwater from snow, which are 

good, and those for periods of doubtful or no gage-height record, which are fair. 

Medium and high flows affected by detention reservoir 2 miles above station (capacity, 

about 26 acre-ft at spillway level or 50 acre-ft at crest of concrete dam).

Rating tables, water year 1955-56, except periods of backwater from snow 

height, In feet, and discharge. In cubic feet per second)

Oct. 1 to Nov. 4 Nov. 5 to Sept. 30

1.1 3.33

1.2 6.10

1.4 15.4

1.7 37.3

2.1 

2.8 

5.0

80

185

582

0.9 

.95

1.0

1.1

1.2

0.63

1.10

1.70

3.55

6.22

1.4 

1.7 

2.1 

2.6

14.6

34.5

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

8.85

5.30

4.06

3.60

5.48

21.5

39.2

24.6

16.3

9.74

8.87

6.82

6.15

43.4

d376

d564

*130

62

46.6

33.2

27.6

23.9

19.6

18.6

18.0

15.6

14.2

13.4

12.9 

217

78

1,872.47

60.40

6.57

7.57

Nov.

36.5

29.1

26.1

308

143

56

39.6

38.6

29.2

26.3

61

30.8

26.3

55

32.2

96

51

30.0

28.5

27.8

26.3

25.7

22.4

19.8

17.2

16.6

14.6

*15.8

13.6 

12.0

1,355.0

45.17

4.91

5.48

Dec.

11.8

11.3

12.5

12.2

15.4

12.2

10.0

9.81

9.18

8.98

7.79

7.79

7.42

6.54

7.42

6.71

6.06

6.22

6.22

5.30

5.49

5.55

C6.4

5.61

5.91

6.71

6.46

*5.05

4.60 

4.70

4.80

259 . 90

7.74

0.841

0.97

Jan.

4.26

5.78

4.51

4.71

5.01

4.56

*4.51

3.80

13.0

16.9

12.8

35.5

28.5

-L6.9

11.5

11.1

11.5

8.77

7.98

7.79

7.11

5.91

6.71

5.91

5.32

5.04

4.77

4.81

4.64 

21.0

13.5

301 . 50

9.73

1.06

1.22

Feb.

7.74

3T7T

28.8

12.2

15.0

24.0

106

22.6

18.1

15.8

*20.8

40.2

21.7

17.2

16.9

15.8

13.4

68

42.6

28.5

22.4

14.6

13.2

11.3

55.6

35.9

20.1

38.0

27.1

785.24

27.08

2.94

5.17

Mar.

18.4

18.1

*18.7

20.4

16.6

15.8

18.7

64

57.2

21.7

18.1

17.8

16.5

71

42.2

C26.5

C22.4

clS.4

C16.6

C17.8

C17.8

022.4

39

36

23.5

25

27

21

26 

29

25

808.4

26.08

2.83

5.27

Apr.

23

21.5

*26

25.0

19.8

16.6

25.5

71

80

57

54.5

26.5

21.7

19.0

26.2

52

35.9

23.7

20.4

18.1

17.2

14.9

15.2

15.9

12.7

14.6

15.2

15.2

12.0 

24.1

792.2

26.41

2.87

5.20

May

15.5

12.5

19.9

14.6

13.6

12.6

60

20.4

15.5

16.0

14.0

12.8

11.8

12.5

14.9

10.9

8.61

*8.61

8.42

7.79

7.59

6.51

6.55

6.51

5.15

4.91

8.84

9.55

5.55 

4.14

5 . 62

579.01

12.25

1.53

1.55

June

5.87

12.0

51

14.8

*9.67

8.11

6.82

5.82

4.84

3.90

5.47

3.96

5.44

2.92

2.88

2.07

1.99

5.55

2.71

2.44

4.38

4.55

2.52

1.92

5.22

2.51

6.19

5.28

2.82 

1.44

188.49

6.28

0.685

0.76

July

1.32

2.86

2.79

1.64

14.0

10.9

4.51

5.21

34.2

15.3

6.30

4.39

4.65

6.52

4.64

5.15

5.52

2.98

2.37

2.55

10.7

6.56

*5.15

5.39

2.90

2.44

18.4

6.11

5.44 

5 99

2.63

199.09

6.42

0.698

0.80

Aug.

2.41

*2.10

1.77

1.10

1.00

3.46

2.71

2.00

1.57

1.40

.95

.75

1.45

1.20

1.06

.96

1.20

.64

.86

2.12

5.83

3.49

2.19

1.77

.90

.68

2.07

1.96

1.78 

1.21

1.64

54.23

1.75

0.190

0.22

Sept.

1.26

4750

4.27

3.28

1.78

14.0

16.3

5.21

1.84

2.92

1.80

1.72

1.72

2.02

4.52

12.5

6.63

5.77

2.72

4.15

5.11

1.92

1.70

5.43

*2.93

2.36

2.50

4.95

2.50 

1.84

123.95

4.15

0.449

0.50

Calendar year 1955: Max 564 Hln 0.37 Mean 19.44 Cfsm 2.11 In. £8.68

Water year 1955-56: Max 564 Mln 0.64 Mean 19.40 cfsm 2.11 In. 28.69

Peak discharge (base. 580 cfs). Oct. 16 (1:30 a.m.) 1,560 cfs (9.62 ft); Oct. 30 (4:45 p.m.) 

527 cfs (4.71 ft); Nov. 4 (11 a.m.) 421 cfs (4.15 ft).

* Discharge measurement made on this day.

c Backwater from snow.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

high-water mark In well and normal shape of peaks.

Note. No gage-height record Mar. 25 to Apr. 3, Aug. 9-17; discharge estimated on basis of recorded range In stage, weather records, and records for nearby streams.
16 BEAVER SWAMP BROOK BASIN

Beaver Swamp Brook near Harrison, N. Y.

° 5J^0 "' 12n§ 73 ° 43 ' 00 ". °n rig" bank Just downstream from Short Street 

T L- o village of Mamaroneck, a quarter of a mile downstream from Brentwood 

Brook, a quarter of a mile upstream from mean high tide in Mamaroneck Harbor, and 

1 mile south of Harrison, Westchester County.

Drainage area. 4.71 sq mi.

Records available. November 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 24.99 ft above mean 

sea level, datum of 1929. Prior to June 8, 1946, staff gig! at same site and datum?

Average discharge .--12 years (1944-56), 6.41 cfs.

^^cf^S^I^ Oct - 16 (gage helght ' 2 ' 86 "): mlnl!num '

A o. 19?Q~£ 6: o M?*!?1 discharge, that'of Oct.'l6, 1955; no flow at times Aug. 8-16, 

Aug. 19 to Sept. 1, Sept. 7-12, 1944, Aug. 29 to Sept! 2, 1953.

Remarks.--Records excellent except those for periods of backwater from debris, doubtful 

It&XHSMKS*are^ove^taTion0'3 ' ""^ "" ^ ^ affe° ted ^

Rating tables, water year 1955-56, except period of backwater from debris (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Jan. 13 Jan. 13 to Sept. 3O

0.43 

.5

1.27

2.46

4.93

12.5

1.1 

1.5 

2.0 

2.5

102

136

.55

0.29

.40

.80

1.36

3.01

1.0 

1.3

5.89

12.4

24.2

46.3

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

3.34

2.36

1.80

1.56

i.34

7.06

12.5

9.83

7.00

5.23

3.83

3.00

2.56

10.6

45.8

134

Tiff

55

»25.0

17.0

13.1

9.83

8.25

8.06

7.34

6.49

6.OO

5.38

5.08

28.4

41.3

606.04

19.55

4.15

4.79

Nov.

16.8

11.8

10.0

67

72.

35.2

21.2

18.4

14.5

12.0

22.4

16.4

12.3

21.0

15.6

25.6

25.0

15.6

13.9

12.5

11.8

10.9

9.42

8.44

7.34

6.83

6.32

*6.16

5.38

4

Q-Z 

__ JgJ

536.72

17.89

3.80

4.24

Dec.

4.64

4.50

4.64

4.78

5.08

4.36

3.83

3.83

3.70

3.46

3.11

2.89

2.67

2.78

2.67

2.46

2.16

2.26

2.16

1.98

1.98

2.16

2.26

2.46

3.11

3.00

2.46

*1.98

1.64

2.07

1.80

92.88

3.00

0.637

0.73

Jan.

1.56

1.34

2726

2.26

1.98

1.72

*1.56

1.41

2.46

4.93

5.53

11.6

*13.1

7 .84

5.18

4.37

4.08

3.44

3.12

3.01

2.91

2.72

2.72

2.53

2.44

2.27

2.02

1.93

2.18

7.55

6.34

118.36

3.82

0.811

0.93

Feb.

3.33

9.95

12.2

*5.53

6.08

10.6

41.1

15.6

9.55

8.26

10.3

17.2

11.2

8.05

7.84

7.03

6.08

26.7

24.6

14.6

10.9

8.05

6.64

5.71

14.4

14.9

9.78

17.6

13.5

357.28

12.32

2.62

2.82

Mar.

9.55

9.11

»8.47

8.90

7.43

6.84

8.10

25.6

19.6

12.2

9.78

8.90

8.26

24.4

22.2

13.5

12.4

10.2

9.11

8.90

9.78

11.9

15.8

19.2

14.6

14.4

17.4

16.0

15.9

18.6

14.4

411.43

13.27

2.82

3.25

Apr.

11.4

10.2

»10.9

9.55

8.47

7.64

10.5

27.3

28.3

2472

16.6

12.7

10.5

9.55

12.1

19.9

15.8

11.2

9.33

8.26

8.05

6.84

6.64

6.26

5.53

7.03

6.45

5.36

5.01

8 .26

339.83

11.33

2.41

2.68

May

5.36

4.84

6.84

5.53

5.01

4.84

17.6

8.26

5.89

5.53

4.68

4.22

3.94

3.56

4.84

3.81

3.12

*3.22

3.01

3.44

2.72

2.53

2.44

2.18

2.02

1.86

3.53

3.01

2.27

1 .86

1.78

133.74

4.31

0.915

1,06

June

2.18

5.13

18.8

6.64

»3.81

2.91

2.36

1.93

1.70

1.63

1.63

1.36

1.30

1.06

.96

.85

.80

.70

.57

.61

.90

.85

. .70

.80

.66

.53

3.25

2.10

1.36

. 85

68.93

2.30

0.488

0.54

July

0.66

.57

.46

.40

6.21

4.12

1.93

1.43

13.1

9.44

3.12

1.78

1.56

2.62

1.86

1.42

1.24

.96

.75

.70

6.34

3.22

*1.86

1.30

1.06

.35

5.19

3.33

1.70

1 18

196

81.32

2.62

0.556

0.64

Aug.

0.80

.70

.61

.53

.53

.83

.90

.75

.57

.46

.37

.37

.53

.46

.40

.37

.46

.34

.29

732

2.92

*1 24

!70

.53

.40

.37

.34

2.28

2.18

.75

.66

22.96

0.741

0.157

0.18

Sept.

0.53

.93

.90

.61

.53

10.2

13.0

2.44

1.24

1.01

.85

C.85

*c.70

.66

2.05

4.08

2.36

1.42

1.01

1.52

.96

.80

.85

1.69

.90

.75

.78

1.85

.96

85

57.28

1.91

0.406

0.45

Calendar year 1955: Max 134 Min O.12 Mean 7.25 Cfsm 1.54 In. 20.91

Water year 1955-56: Max 134 Min 0.29 Mean 7.72 Cfsm 1.64 In. 22.31

Peak discharge (base. 58 efs). Oct. 16 (1O:30 a.m.) 156 cfs (2.86 ft); Oct. 30 (12 p.m.) 60 cfs 

(1.47 ft); NovT 4 (9:30 p.m.) 88 cfs (1.81 ft); Sept. 6 (6:45 p.m.) 73 cfs (1.62 ft).

* Discharge measurement made on this day.

c Backwater from debris.

Note. Doubtful gage-height record Dec. 22 to Jan. 13; discharge computed from reconstructed gageheight graph based on discharge measurements, staff-gage readings, weather records, and records for 

other streams in Westchester County.
MAMARONECK RIVER BASIN 17

Mamaroneck River at Mamaroneck, N. Y.

Location. Lat 40 0 57'15", long 73°44'05", on left bank In Mamaroneck, Westchester County, 

113 ft downstream from Halstead Avenue Bridge, 700 ft downstream from Sheldrake River, 

and 0.3 mile upstream from mean high tide in Mamaroneck Harbor.

Drainage area.--23.4 sq mi.

Records available.--November 1943 to July 1953, September 1954 to September 1956 (see 

Remarks!"!

Gage. Water-stage recorder and concrete control. Datum of gage is 11.46 ft above mean 

sea level, datum of 1929. Prior to Sept. 10, 1954, at same site at datum 0.41 ft 

higher.

Average discharge.--10 years (1944-52, 1954-56), 31.88 cfs (unadjusted).

Extremes.--Maximum discharge during year, 1,940 cfs Oct. 15 (gage height, 5.93 ft); minimum, 0.45 cfs Aug. 19, 20 (gage height, 0.130 ft); minimum dally, 0.50 cfs Aug. 19.

1943-53, 1954-56: Maximum discharge, that of Oct. 15, 1955; maximum gage height, 

7.82 ft Sept. 15, 1944 (datum then in use, before river-widening project in 1953); minimum discharge, 0.08 cfs Aug. 11, 24, 1949; minimum daily, 0.11 cfs Aug. 31, 1944; minimum gage height since Sept. 9, 1954, 0.125 ft July 31, Augr 1, 1955.

Maximum stage known, about 11.5 ft Sept. 21, 1938 (hurricane wave), from information 

by officials of village of Mamaroneck.

Remarks. Records excellent except those for periods of backwater from aquatic vegetation 

or debris, which are good. Flow affected by storage in and diversion from water-supply 

reservoirs on Mamaroneck and Sheldrake Rivers. Diurnal fluctuation caused by watersupply systems. Station inoperative July 31, 1953, to Sept. 9, 1954, as a result of 

a river-widening project begun July 22, 1953, by village of Mamaroneck.

Rating tables, water year 1955-56, except periods of backwater from 

aquatic vegetation or debris (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 7 Feb. 7 to Sept. 30

1.92

4.03

8.26

18.4

44.0

1.2 

1.8 

3.0 

5.0

108

266

715

1,550

0.13 

.18 

.25 

.35 

.50

0.45

1.00

2.30

5.27

12.9

0.7 

1.0 

1.3 

1.7

29.7

70

129

234

Discharge, In cubic feet per year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

10.3

4.20

10.9

15.0

4.24

27.3

74

47.1

38.2

31.5

16.5

4.73

4.03

66

603

*1<480

*429

177

122

86

70

56

46.6

44.0

41.7

34.8

32.5

31.5

30.5

372

198

4,208 . 60

135.8

Nov.

88

68

60

477

351

154

108

98

74

63

130

74

62

116

75

174

120

74

68

66

62

58

45.5

24.6

39.5

35

33.5

*33

31.5

29.5

2,892.1

96.40

Dec.

17.9

5.91

14.7

21.7

20.8

35.9

31.2

15.9

12.9

5.11

4.92

5.11

4.92

9.50

19.2

18.4

17.5

10.5

3.00

2.61

2.26

2.14

2.37

2.49

3.27

3.27

2.86

2.61

*2.26

2.49

2.03

305.73

9.86

Jan.

1.92

1.92

2.26

2.61

2.37

2.61

*2.37

2.03

9.31

30.5

38.8

63

68

50

42.8

21.6

7.50

5.91

5.30

9.54

21.7

12.4

4.20

3.56

3.13

3.00

3.13

3.56

3.71

30.6

43.3

502 . 64

16.21

Feb.

19.2

28.2

56

*41.7

37.1

32.0

219

55

38.9

33.2

45.8

85

46.6

33.2

33.2

28.8

25.0

162

101

61

43.9

30.8

26.9

24.1

72

71

41.2

87

53

1,631.8

56.27

Mar.

36.6

37.8

*36.6

40.0

30.8

29.7

52

151

65

46.6

42.6

37.8

86

156

70

63

58

55

40

29.5

51

66

98

83

59

83

88

70

96

83

61

2,002.0

64.58

Apr.

51

48

*58

46.6

38.9

35.8

95

140

183 ~9~6

91

53

46.6

41.2

80

109

66

55

46.6

38.9

30.8

27.8

27.8

24.1

21.2

35.7

25.9

21.2

33.6

28 . 8

1,696.5

56.55

May

18.8

31.2

28.8

25.9

19.6

62

86

34.3

25.9

28.8

22.2

19.6

17.3

22.6

20.3

16.6

12.3

*12.3

11.4

11.7

9.17

7.21

7.64

6.72

4.72

3.91

17.0

11.7

6.07

5.27

5.46

612.47

19.76

June

9.66

39.6

113

29.2

*16.6

10.6

7.40

.08

.22

.76

.06

.78

.30

.87

.77

.58

.48

.31

.23

.15

1.72

1.58

1.31

1.52

1.15

1.00

5761

3.22

1.77

1 . 48

279.01

9.30

July

1.00

1.08

1.08

.94

6765

6.52

2.53

1.77

51

3"2.3

6.21

3.29

2.91

5.64

3.47

2.53

2.08

1.58

1.40

1.48

8.89

3.50

*1.98

1.40

1.15

1.16

12.0

4.9

1.68

1 48

l!58

175.18

5.65

Aug.

1.24

*1.08

1.15

1.00

.87

1.69

1.31

1.40

1.40

1.31

1.00

.59

1.23

1.08

1.00

.81

0.87

0.59

^50

.98

3.34

1.70

1.62

1.31

1.08

.81

1.34

C4.2

C3.9

0.94

c.94

42.28

1.36

Sept.

cO.59

c.81

c.81

c.94

c.94

29.4

TTTs

3.61

2.19

1.98

1.98

2.26

1.40

1.58

2.73

5.37

2.97

1.67

1.60

2.42

1.67

1.31

1.31

2.30

*1.58

1.31

2.20

2.42

1.67

1.15

93.97

3.13

Adjusted for dlverslont

Mean 

Cfsm 

In.

142.2 

6.08 

7.01

102.8 

4.39 

4.90

Calendar year 1955: 

Water year 1955-56:

16.37 

0.700 

0.81

22.88 

0.978 

1.13

63.31 

2.71 

2.92

71.68 

3.06 

3.53

62.86 

2.69 

3.00

Observed

Max 1,480 Mln 0.52 Mean 38.60 

Max 1,480 Mln 0.50 Mean 39.46

27.23 

1.16 

1.34

17.41 

0.744 

0.83

12.73 

0.544 

0.63

6.16 

0.263 

0.30

9.52 

0.407 

0.45

Adjusted

Mean 45.03 Cfsm 1.92 In. 26.12 

Mean 46.15 Cfsm 1.97 In. 26.85

Discharge measurement made on this day. 

t Adjusted for diversions from Mamaroneck and Sheldrake Rivers for water-supply purposes (records 

of diversion furnished by village of Larcnmont and Westchester Joint Water Works). 

c Backwater from debris. 

Note. Backwater from aquatic vegetation Nov. 11-28, Mar. 16 to Apr. 3, July 26 to Aug. 2.
18 HUTCHINSON RIVER BASIN

Hutchinson River at Pelham, N. Y.

Location.--Lat 40°54'40", long 73°48'55", on right bank in Pelham, Westchester County, 

just upstream from New York, New Haven and Hartford Railroad bridge, 100 ft downstream 

from Pelham Lake and 1-5 miles west of New Rochelle.

Drainage area.--5.76 sq mi.

Records available.--November 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 12.92 ft above mean 

sea level, datum of 1929 (levels by county of Westchester).

Average discharge .--12 years (1944-56), 6.57 ofs.

Extremes. Maximum discharge during year, 356 cfs Oct. 16 (gage height, 4.82 ft), from 

rating curve extended above 143 cfs by logarithmic plotting; minimum, 0.04 cfs Aug. 28 

(gage height, 1.881 ft); minimum daily discharge, 0.06 cfs Aug. 19, 20, 27.

1943-56: Maximum discharge, 388 cfs Sept. 14, 1944, from rating curve extended 

above 120 cfs by logarithmic plotting; maximum gage height, that of Oct. 16, 1955; minimum discharge, 0.02 cfs Aug. 2-6, 1955; minimum gage height, 1.856 ft Aug. 2, 5, 1955; 

minimum daily discharge, 0.02 cfs Aug. 2-6, 1955.

Remarks.--Records excellent except those for periods of backwater from debris or those 

BeTow 1 cfs, which are good, and those for period of no gage-height record, which are 

fair. Plow controlled by lake and three reservoirs above station; low flow completely 

controlled by Pelham Lake.

Rating tables, water year 1955-56, except periods of backwater from debris (gage 

height, in feet, and discharge, In cubic feet per second)

Oct. 16 to May 7 May 7 to Sept. 30

2.2

2.3

2.5 

2.8 

3.3

2.11 1.53

2.2 2.69

2.3 4.65

2.4 7.30

2.6 15.7

2.9 36.9

3.3 82

4.1 214

1.89

1.9

1.95

2.0

2.1

0.06

.08

.23

.45

1.19

2.2 2.30

2.35 4.85

2.55 11.3

2.8 25.2

83

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.00

4.35

3.12

2.34

1.91

25.5

26.8

16.4

9.5

6.1

4.25

3.22

2.58

20.2

79

210

*a93

a39.1

a20.2

a!2.1

as. 38

a6.99

a6.40

6.12

5.98

5.22

5.72

5.46

5.72

36.7

38.6

716.96

23.13

-

-

Nov.

15.7

9.46

7.54

31.8

58.0

19.8

13.0

10.9

8.92

8.20

16.7

11.4

8.74

19.8

13.8

21.8

18.8

14.8

11.6

10.0

8.74

7.48

6.69

5.98

5.59

4.98

4.98

*4.98

4.76

4 43

369.37

12.31

-

-

Dec.

4.21

4.00

4.00

4.21

4.32

4.43

4.10

3.90

3.69

3.59

3.39

3.02

2.62

2.62

2.62

2.54

2.54

2.40

2.40

2.14

2.14

2.14

2.27

2.27

2.61

2.40

2.08

2.01

*1.95

1 95

1J85

90.39

2.92

-

-

Jan.

1.77

1.59

2.08

2.08

2.08

1.95

*1.83

1.66

6.70

6.40

5.85

11.1

14.1

9.78

6.40

4.76

4.00

3.49

3.20

2.94

2.69

2.54

2.47

2.62

2.47

2.27

2.14

2.08

2.20

8 . 76 

6.40

130.40

4.21

-

-

Feb.

5.10

12.3

10.1

*7.74

7.00

16.6

36.1

Tf/f

10.6

7.57

8.90

11.0

8.56

6.84

6.54

5.72

5.46

26.7

18.7

12.8

9.46

7.30

6.12

5.34

12.9

11.4

8.6

14.8

10.6

________

328.55

11.33

-

-

Mar.

8.0

7.7

*7.0

7.26

6.26

5.59

6.37

28.2

20.1

12.4

9.28

7.66

7.48

23.3

19.3

13.3

12.3

9.64

9.64

9.28

9.14

10.4

13.2

15.6

12.8

12.2

12.9

11.9

12.5

is'.s

366.60

11.83

-

-

Apr.

10.2

8.74

10.4

9.28

8.20

7.14

12.8

28

28

23.2

15.8

12.4

10.2

*8.9

12.1

17.8

13.8

10.2

8.20

7.14

6.40

6.12

6.69

6.12

5.54

7.04

6.54

6.12

5.59

9.71

328.17

10.94

-

-

May

7.50

7.08

7.77

6.99

6.12

7.56

18.8

10.6

6.56

5.44

4.74

4.05

5.76

4.OO

5.72

3.58

3.17

*3.09

2.84

4.16

3.01

2.86

2.86

2.86

2.50

2.24

5.64

4.03

3.42

2 57

2! 36

155.46

5.01

-

-

June

4.52

11.8

20.0

TTT4

*5.7

3.42

2.71

2.36

1.92

1.69

1.58

1.48

1.14

1.01

1.29

1.12

.69

.70

.59

.44

1.51

.81

.67

1.45

.85

.68

2.64

5.84

2.94

2.04

92.77

5.09

-

-

July

1.58

1.01

.85

.57

6.70

4.12

3.33

3.10

19.9

17.1

8.41

4.75

3.64

4.00

2.86

3.01

1.69

1.14

.77

.55

8.4

4.4

*3.1

1.92

1.53

.93

3.97

2.17

1.69

1.06

.69

118.54

3.82

-

-

Aug.

0.45

.35

.22

.15

.28

1.87

1.22

.69

.31

.26

.21

.12

.27

.46

.15

.09

.08

.08

.06

.06

4.95

*1.02

.66

.59

.12

.08

.06

4.4

5.2

2.85

2.24

29.55

0.946

-

-

Sept.

1.64

1.58

1.58

1.68

*.4Q

17.4

19.2

7.92

3.21

1.69

.93

2.10

.69

.40

2.08

4.19

3.17

2.50

1.58

2.15

1.19

.89

.75

2.52

1.10

.74

1.35

2.99

1.45

1.10

89.51

2.98

-

-

Calendar year 1955: Max 210 Mln 0.02 Mean 7.71 Cfsm 1.34 In. 18.14

Water year 1955-56: Max 210 Min 0.06 Mean 7.69 Cfsm 1.34 In. 18.18

Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of pattern of normal recession, weather records , and records for nearby streams.

Note.--Backwater from debris Oct. 8-11, Feb. 26 to Mar. 5, Apr. 7-14, June 5-5, July 21-23, 

Aug. 21, 22, Aug. 28 to Sept. 5.
20 STREAMS ON LONG ISLAND

Cedar Swamp Creek at Glen Cove, N. Y.

Location. Lat 40°51 I 45", long 73 0 38'05", on right bank just downstream from highway

bridge at 8- by 10-foot concrete culvert outlet at pond in Pratt Park, 1 block west of 

post office, Glen Cove, Nassau County.

Drainage area. About 11 sq mi.

Records available. October 1938 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage is 15.93 ft (revised) 

above mean sea level, adjustment of 1912.

Average discharge. 18 years, 7.41 efs.

Extremes. Maximum discharge during year, 368 cfs Oct. 16 (gage height, 3.701 ft); minimum, 5.23 efs Oct. 4 (gage height, 0.688 ft).

1938-56: Maximum discharge, 1,040 cfs Aug. 12, 1955 (gage height, 5.62 ft), from 

rating curve extended above 220 cfs by logarithmic plotting; minimum, 3.34 cfs Nov. 15, 

1946 (gage height, 0.583 ft), flow reduced temporarily, cause unknown.

Remarks. Records good except those for period of no gage-height record, which are fair. 

This station is operated in connection with an inventory of water resources on Long 

Island. In addition to records of streamflow, records of ground-water levels are 

collected, some of which are published in water-supply papers. See page 603 for results 

of discharge measurements of Long Island streams at sites other than regular gaging 

stations.

Revisions (water years). WSP 971: 1939-42.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Nov. 16 Nov. 16 to Sept. 30

1.0

5.26

7.43

12.5

1.2 19.4

1.4 28.8

1.7 48.3 1.0

5.47

7.11

12.3

1.3

1.4

24.3

29.1

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9 

10

11

12

13

14 

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29 

30

31

Tbtal

Mean

Cfsm

In.

Oct.

5.98

5.48

5.40

5.31

*5.29

9.40

6.98

7.94

5.68 

5.56

5.61

5.63

5.66

15.1 

34.3

45.9

TSTe

9.94

7.84

6.99

6.65 

6.37

6.23

6.30

6.06

6.00

5.94

5.92

5.94 

14.2

7.26

295.46

9.53

_

-

Nov.

6.47

a6.33

a6.13

a26.6

a28.5

a!2.6

9.60

8.00

7.21 

8.32

12.4

7.36

6.84

10.0 

7.08

16.5

9.05

7.74

8.01

8.04

7.34 

6.87

6.70

6.53

6.45

6.39

6.36

 6.28

6.08 

6.02

277.60

9.25

_

-

Dec.

6.00

6.08

6.14

6.40

6.26

6.04

6.08

6.10

6.06 

6.04

6.00

6.00

5.96

5.98 

6.12

6.04

6.00

6.04

6.00

5.88

5.96 

5.92

6.02

6.14

6.53

6.16

6.25

*5.99

5.70

5'. 88

187.59

6.05

..

-

Jan.

5.88

6.00

6.06

6.00

6.04

5.98

5.92

5.96

*11.2 

7.48

6.76

8.30

9.67

6.66 

6.56

6.36

6.40

6.08

5.98

6.04

6.02 

5.86

5.90

5.80

"STsT

5.88

5.82

5.80

6.20 

*14.5

6.92

209.84

6.77

_

-

Feb.

6.49

13.1

*8.02

8.67

8.16

19.2

26.0

T757

7.84 

7.18

9.96

8.87

7.09

6.66 

6.67

6.34

6.32

2TT4"

9.82

8.66

7.24 

6.55

6.36

6.58

10.9

7.24

7.15

14.2

7.81

280.05

9.66

_

-

Mar.

6.89

7.54

6.91

7.15

6.51

7.14

8.42

17.0

8.56 

7.56

7.36

6.76

7.18

19.2 

9.43

7.98

8.68

7.32

7.15

8.23

9.40 

*9.79

11.1

11.0

8.67

10.1

10.0

8.81

11.1 

10.2

8.61

281.75

9.09

_

-

Apr.

7.91

7.96

8.44

7.96

7.49

7.59

*13.6

22; 4

15.9 

10.4

8.84

8.14

7.44

7.00 

9.02

9.56

7.29

7.34

7.12

6.82

6.93 

6.71

7.10

6.55

6.51

7.72

6.70

6.55

6.66 

7.94

257.59

8.59

_

-

May

6.47

8.40

8.16

7.79

6.91

8.32

~776~8 13.8

7.31 

7.31

6.89

6.91

6.87

7.62 

6.85

*7.18

6.55

6.76

6.45

6.55

6.39 

6.32

6.68

6.28

6.26

6.24 ¥7OT

6.58

6.36 

6.43

6.45

223.85

7.22

_

-

June

7.79

11.3

12.6

~7722

6.85

6.64

6.49

6.41

6.43 

6.85

6.43

6.34

6.26

6.22 

6.14

6.04

6.04

5.98

5.98

5.98

6.66 

6.26

6.06

6.94

6.16

*5.84

672ff

7.51

6.12

5, 96

203.78

6.79

.

-

July

5.90

5.82

5.94

5.79

1175^

6.45

6.18

6.18

9.78 

6.34

6.16

6.10

6.56

6.39 

6.16

6.69

6.22

*5.95

5.94

6.00

14.6 

"67T4

6.51

6.43

6.30

6.20

11.1

6.53

6.20 

6.04

6.00

214.70

6.93

-

Aug.

5.98

5.82

5.72

5.74

5.88

10.2

6.49

6.12

5.94 

*5.86

5.74

5.70

6.00

5.86 

5.70

5.62

5.64

5.60 'BTES"

6.07

iia

6.30

6.00

5.94

5.84

5.86

5.90

6.88

6.05 

5.88

5.92

192.97

6.22

.

-

Sept.

6.92

6.24

6.04

5.90

5.86

7.92

6.80

5.84

5.78 

5.84

5.80

5.78

5.82

5.90 

7.83

6.98

6.42

6.10

6.02

7.42

6.12 

6.16

6.28

7.87

*6.14

5.96

7.46

6.48

5.88 

5.86

191.42

6.38

-

-

Calendar year 1955: Max 259 Mln 4.63 Mean 7.91 Cfsm - In. -

Water year 1955-56: Max 45.9 Mln 5.29 Mean 7.70 Cfsm - In. -

Peak discharge (base. 160 cfs). Oct. 16 (10:15 a.m.) 368 cfs (3.701 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for nearby streams.

Note. Discharge per square mile and runoff In Inches not computed because much of the surface 

flow Is derived from ground-water storage that may originate from an area differing from that of the 

surface drainage.
BRONX RIVER BASIN 19

Bronx River at Bronxville, N. Y.

Location. Lat 40°56'10", long 73°50'15", on right bank in Bronxville, Westchester County,

 just upstream from New York Central Railroad bridge and 800 ft downstream from Sprain 

Brook.

Drainage area. 26.5 sq mi (not including 18.1 sq mi, the entire flow from which is diverted for municipal water supply and drainage purposes).

Records available. November 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 73.74 ft above mean 

sea level, datum of 1929.

Average discharge.--12 years (1944-56J, 38.95 cfs .

Extremes. Maximum discharge during year, 922 cfs Oct. 16 (gage height, 6.65 ft); minimum,

 6T3"9"~cfs Aug. 17 (gage height, 0.37 ft).

1943-56: Maximum discharge, that of Oct. 16, 1955; minimum, 1.0 cfs Sept. 10, 1944 

(gage height, 0.145 ft).

Remarks.--Records excellent except those for periods of ice effect or backwater from 

debris, which are good. Entire flow diverted at Kensico Reservoir on Bronx River, at 

White Plains Reservoirs 1 and 2 on a tributary, and at Grassy Sprain Reservoir on 

Sprain Brook (combined drainage area, 18.0 sq mi) for water supply of New York City, 

White Plains, and Yonkers, respectively. Subsequent to Oct. 1, 1954, flow from 

0.1 sq mi below Grassy Sprain Reservoir diverted for flood-control purposes.

Revisions. WSP 1382: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect or backwater from 

debris (gage height, In feet, and discharge, In cubic feet per second)

1 to Sept. 3O

0.5 12.5

.6 18.5

.8 35.4

1.1 73

2.0 250

3.0 459

0.9 

1.2

2.0

626

782

250

0.38 6.73

.5 11.5

.7 24.5

0.9 

1.2 

2.4

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

31.9

18.1

14.6

13.5

15.5

116

106

60

43.5

30.4

27.8

22.3

20.0

126

435

780

345

208

*182

122

101

82

73

68

64

57

52

48.0

44.4 

329

212

3,845.8

124.1

4.68

5.40

Nov.

101

81

74

328

270

148

125

115

88

81

148

86

73

137

81

180

118

81

*81

76

68

62

58

55

49.2

47.4

45.6

49.6

41.5 

58 . 1

2,986.4

99.55

3.76

4.19

Dec.

37.6

36.6

36.6

37.1

37.1

34.2

31.4

29.4

29.4

27.8

26.3

25.6

24.1

23.4

23.7

23.4

21.6

21.2

21.2

19.4

18.4

17.7

18.4

18.8

21.9

21.2

17.7

16.7

*16.7 

17.0

b!5.8

767.4

24.75

0.934

1.08

Jan.

15.7

b!4.8

16.7

17.4

16.7

16.4

15.4

b!2.2

41.2

54

34.2

72

62

35.1

27.4

25.2

23.7

*21.2

21.2

20.9

19.4

19.4

18.4

17.0

17.0

15.7

15.4

14.5

15.7 

44.1

43.0

803.0

25.90

0.977

1.13

Feb.

20.9

59

68

31.0

31.8

52

-54 185

40.0

35.1

*37.8

61

43.8

36.6

35.1

32.2

30.2

119

70

50

44.4

36.6

34.2

31.8

70

60

42.0

62

47.4

1,520.9

52.44

1.98

2.13

Mar.

39.1

37.6

37.6

40.0

37.6

34.6

38.4

116

67

46.2

41.5

40.5

40.5

130

76

57

53

48.0

46.2

48.0

52

58

70

79

60

*61

72

67

71 

76

62

1,802.8

58.15

2.19

2.53

Apr.

57

53

64

54

49.2

43.8

67

125

126

114

84

70

64

*58

69

111

76

58

53

49.2

46.8

43.8

43.2

42.6

40.0

43.8

48.0

37.6

55.6 

66

1,892.6

63.09

2.38

2.66

Hay

44.4

37.3

53

42.0

41.5

33.6

~54 120

40.0

40.0

37.1

34.2

33.2

31.4

43.8

31.4

28.6

29.0

28.2

30.2

24.8

23.7

23.7

*23.0

21.6

20.2

33.9

32.1

21.6 

19 1

18.8

1,095.4

35.34

1.33

1.54

June

25.4

58

104

37.9

26.3

22.6

20.2

18.8

17.7

17.4

18.1

17.0

15.4

14.8

13.9

13.0

12.5

12.5

11.0

10.8

16.2

18.8

*12.0

13.0

10.8

9.67

38.8

39.4

16.9

11.7

674.57

22.49

0.849

0.95

July

10.5

9.67

157l~

12.1

45.1

40.5

20.7

17.2

110

72

35.6

16.4

17.0

28.4

23.9

C17.0

C14.2

ell. 8

clO.8

clO.8

c45

026

C14.8

*c!2.8

11.7

10.5

69

27.8

15.7 

13.3

11.7

797.07

25.71

0.970

1.12

Aug.

10.8

9.88

9.08

8.69

8.88

12.4

14.8

9.67

*8.69

8.13

7.77

7.60

7.77

8.50

7.60

7.24

6.90

6.75

11 . 9

7.60

33.0

TeTs

9.47

8.32

7.42

7.07

6.73

22.0'

30.7 

9.27

11.0

342.11

11.04

0.417

0.48

Sept.

11.4

9.27

13.6

9.08

*7.77

77

69

18.9

11.7

9.08

8.69

8.50

10.3

8.88

14.6

51

20.5

14.2

10.3

16.7

11.7

9.08

9.47

17.9

10.3

8.88

9.38

23.3

11.5 

9.47

521.45

17.38

0.656

0.73

Calendar year 1955: Max 780 Hln 4.22 Mean 46.15 Cfsm 1.74 In. 23.64

Water year 1955-56: Max 780 Mln 6.73 Mean 46.58 Cfsm 1.76 In. 23.94

Peak discharge (base, 410 cfs).--Oct. 16 (5:15 a.m.) 922 cfs (6.65 ft); Oct. 50 (5:50 p. 

660 cfs (4.23 ft); Nov. 4 (11 p.m.) 426 cfs (2.83 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

c Backwater from debris.
STREAMS ON LONG ISLAND

Cold Spring Brook at Cold Spring Harbor, N. Y.

Location. Lat 40°51'25", long 73°27'50", on left bank 270 ft upstream from State Highway 

25A, at Cold Spring Harbor State Fish Hatchery, Nassau County, and 1 mile southwest of 

village of Cold Spring Harbor, Suffolk County.

Drainage are a.--About 7.3 sq mi.

Records available. July 1950 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage is 5.38 ft above mean sea 

level, datum of 1929.

Average discharge.--6 years, 2.38 cfs (unadjusted).

Extremes. Maximum discharge during year, 31.2 cfs Aug. 10 (gage height, 0.824 ft); maximum gage height, 2.876 ft Oct. 15 (backwater from high tide); minimum discharge, 

0.83 cfs Feb. 25 (gage height, 0.141 ft, backwater from aquatic vegetation).

1950-56: Maximum discharge, 108 cfs Sept. 11, 1954 (gage height, 1.332 ft, backwater from aquatic vegetation), from rating curve extended above 21 cfs by logarithmicplotting; maximum gage height, 5.342 ft Aug. 31, 1954 (backwater from high tide), from 

high-water mark; minimum discharge, 0.39 cfs Feb. 9, 1951 (gage height, 0.086 ft), 

result of ice action.

Remarks.--Records good except those for periods of backwater from debris, aquatic vegetation, or high tide, which are fair. Flow occasionally regulated at outlet of pond 

40 ft above station. Diversion from this pond by New York State Fish Hatchery bypasses 

station. This station is operated in connection with an inventory of water resources 

on Long Island. In addition to records of streamflow, records of ground-water levels 

are collected, some of which are published in water-supply papers. See page 603 for 

results of discharge measurements of Long Island streams at sites other than regular 

gaging stations.

Rating tables, water year 1955-56, except periods of backwater from aquatic 

vegetation, debris, or high tide (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 16 to Aug. 10 Aug. 10 to Sept. 30

1.75

3.97

6.95

0.15 

.2 

.3

0.96

1.69

3.62

0.4 

.6

6.71

15.8

0.29 

.35

3.22

4.73

Discharge. In cubic feet per second, water year October 1955 to Septembe

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

25

27

28

29

30

31

Total

Mean

(t)

Oct.

2.9

2.85

3.05

2.9

2.85

2.85 

3.15

3.0

3.1

3.1

2.85

2.42

1.92

2.OO

5.4

12.6

5.8

3.8

3.1

2.8

2.6

2.42

2.8

2.34

2.26

2.30

2.28

*2.30

2.25

2 . 38 

3.0

99.37

3.21

el. 79

Nuv.

2.75

2.55

2.55

7.7

8.5

4.5 

3.35

3.05

2.8

2.8

3.45

3.15

3.25

3.15

2.95

3.0

3.15

2.85

2.8

2.8

2.7

2.65

2.65

2.65

2.65

2.55

2.6

2.65

*2.6

2 . 53

97.13

3.24

e2.51

Dec.

2.49

2.51

2.53

2.6

2.65

2.57 

2.57

2.55

2.53

2.51

2.49

2.49

2.51

2.51

2.49

2.49

2.49

2.21

1.94

2.18

2.29

2.40

2.48

2.51

2.48

2.38

2.33

*2.34

2.34

2 51

2 . 61

75.96

2.45

e2.18

Jan.

2.48

C2.48

C2.55

2.6

2.50

2.46 

2.46

2.38

2.9

*3.2

3.0

2.98

5.13

2.90

2.90

2.82

2.86

2.65

2.57

2.59

2.61

2.84

2.7

2.65

2.55

2.55

2.6

2.22

1.70

1.64

5.5

81.77

2.64

e2.37

Feb.

2.95

3.0

3.35

3.1

5.05

3.05 

7.0

4.35

5.3

3.05

3.05

3.45

C3.15

c2.9

2.85

2.85

2.85

3.8

6.7

6.6

4.65

3.75

3.3

3.15

2.55

.99

1.02

2.8

*3.2

99.81

5.44

e2.58

Mar.

5.06

C5.1

C5.1

3.15

3.40

3.5 

3.4

4.1

578

5.35

3.3

3.15

3.3

5.9

4.05

5.9

5.85

5.45

5.85

3.55

3.3

*3.25

3.17

5.39

3.30

3.28

3.28

3.26

3.41

5.7 

3.53

107.13

3.46

e2.73

Apr.

3.45

3.50

05.3

C3.3

c3.3

3.21 

3.55

6.0

5.04

4.23

3.7

5.5

3.35

3.5

6.17

C4.05

*c2.55

2.90

5.15

5.19

5.24

5.25

3.3

3.25

3.15

3.25

5.35

3.25

5.15

5 2

106.75

3.56

el. 57

May

3.15

3.05

3.55

3.65

3.55

3.4 

4.6

IT?

3.8

5.75

5.4

3.25

3.15

3.1

5.2

5.25

5.1

5.1

5.0

5.25

5.1

*2.9

5.00

5.13

3.09

3.0

3.3

3.5

3.3

3 25 

3^3

 \ 

103.37

3.33

el. 87

June

3.15

3.35

4.6

4.1

3.55

3.35 

3.1

2.7

2.55

2.6

2.65

2.8

3.0

2.85

2.8

2.9

2.95

2.65

2.04

1 . 94

2.26

2.75

5.0

4.05

4.6

4.05

*3.8

3.69

5.75

2.9

94.48

3.15

el. 67

July

2.06

2.9

3.4

5.65

4.5

4.5 

4.1

3.6

3.85

5.85

5.75

3.6

3.6

4.18

4.96

5.68

1743

4.37

*5.95

5.36

2.85

4.09

4.02

3.94

4.20

4.50

4.50

4.55

4.52

3.96

4.80

123.82

5.99

el. 20

Aug.

5.50

4.55

3.37

5.50

4765

6-1 

6.0

3.95

3.3

*4.62

3.47

3.43

4.10

3.52

3.61

5.59

5.55

5.45

3.45

3.65

4.25

4.55

3.95

5.75

5.75

3.75

3.75

3.8

4.2

4.1

3.9

125.31

4.04

el. 16

Sept.

3.8

3.9

4.05

3.9

5.85

3.85 

4.15

4.05

3.85

5.85

5.8

5.8

3.75

5.7

5.85

4.2

4.45

"472 4.6

4.1

4.1

3.95

3.95

4.1

*4.1

3.91

3.45

3747

3.47

3.57

117.77

3.93

el. 16

Calendar year 1955: Max 32.5 Mln O.85 Mean 2.81

Waber year 1955-56: Max 12.6 Min 0.99 Mean 3.37

* Discharge measurement made on this day.

t Diversion, in cubic feet per second, through fish hatchery; for calendar year 1955, 1.97 cfs; 

for water year 1956, 1.90 cfs.

c Backwater from debris.

e Partly estimated; records for diversion Incomplete.

Note.--Backwater from aquatic vegetation Oct. 1-28, Nov. 2-29, Jan. 1-1O, Jan. 23 to Feb. 29, 

Mar. 6-22, Apr. 22 to May 22, May 26 to June 27, June 29 to July 13, Aug. 17 to Sept. 25. Backwater 

from high tide Oct. 6, 13-18, Oct. 3O to Nov. 4, Nov. 11, 14, 16, 28, Dec. 4, 28, 29, Jan. 9-11, 

Feb. 11, Mar. 16-19, 3O, Apr. 7, 8, 11-14, May 13, 14, June 7-11, July 5-9, Aug. 5-9, Sept. 5, 6, 

27. Discharge per square mile and runoff In Inches not computed because much of the surface flow is 

derived from ground-water storage that may originate from an area differing from that of the surface 

drainage.
STREAMS ON LONG ISLAND 21

Mill Neck Creek at Mill Neck, N. Y.

Location.--Lat 40°53'15", long 73°33'55", on right bank at Beaver Dam, 30 ft upstream from 

Peeks Lane (Cleft Road) Bridge in Mill Heck, Nassau County, and li miles southwest of 

Bayville.

Drainage area.--About 11.5 sq mi.

Records available. January 1937 to September 1956.

Gage.--Water-stage recorder and steel sheet-piling control. Datum of gage is 6.55 ft 

above mean sea level, adjustment of 1912.

Average discharge. 19 years, 9.67 cfs.

Extremes. Maximum discharge during year, about 60-cfs Oct. 16; maximum gage height, 1.250 

ft Oct. 15 (backwater from high tide); minimum discharge, 7.56 cfs Oct. 25; minimum 

gage height, 0.297 ft Aug. 20.

1937-56: Maximum discharge, 135 cfs Aug. 12, 1955 (gage height, 1.577 ft), from 

rating curve extended above 35 cfs by logarithmic plotting; maximum gage height, 

4.85 ft Sept. 21, 1938 (hurricane wave); minimum discharge, 0.09 cfs Dec. 11, 1941 

(from discharge measurement); minimum gage height, 0.218 ft Nov. 12, 13, 1950.

Remarks. Records excellent except those for periods of ice effect or fragmentary gageheight record, which are good, and those for periods of no gage-height record or backwater from high tide, which are fair. Slight regulation by ponds above station. This 

station is operated in connection with an inventory of water resources on Long Island. 

In addition to records of streamflow, records of ground-water levels are collected, 

some of which are published in water-supply papers. See page 603 for results of discharge measurements of Long Island streams at sites other than regular gaging stations

Revisions. WSP 1141: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect or backwater from high 

tide (gage height, in feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 8 Apr. 8 to Sept. 30

0.31 

.4 

.6 

.9

8.00

12.0

23.4

48.0

0.3 

.4 

.5 

.6

8.OO 

12.3 

17.6 

23.6

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29 

30 

31

Total

Mean

Cfsm

In.

Oct.

10.2

9.26

8.58

8.37

*8.08

9.68

12.6

11.2

10.2

8.96

8.49

8.29

8.00

clS.2

c43

c45.5

26.6

15.0

11.6

10.2

9.39 

8.66

8.70

8.49

8.00

8.29

8.92

9.00

8.92 

14.6 

14.5

399.48

12.89

-

-

Nov.

10.7

9.84

9.48

23.3

»26.0

16.7

12.8

11.6

10.5

10.4

14.5

12.2

10.8

12.8

12.5

14.4

14.0

11.0

11.0

11.5

10.8 

10.3

10.3

10.1

9.74

9.57

9.52

9.52

bfrS*

364.39

12.15

-

-

Dec.

b9.8

9.79

9.66

9.79

9.88

9.35

9.22

9.17

9.09

8.87

8.66

8.66

8.70

8.70

8.87

8.75

8.62

8.62

8.96

8.79

*9.04 

9.17

9.39

9.44

9.44

9.17

8.87

8.54

F754 

8.70 

8 . 66

280.91

9.06

-

-

Jan.

S.66

8.66

8.83

8.96

8.96

8.96

8.96

8.87

10.8

a!3.0

a!3.0

a!3.4

alT79

all. 5

11.0

10.2

9.92

9.44

9.13

9.09

8.96 

8.75

8.79

*8.70

8.62

8.66

8.70

8.79

8.92 

12.0 

13.0

307.13

9.91

-

-

Feb.

10.4

11.0

*12.1

10.6

10.9

11.4

*21.8

14.3

11.4

10.5

10.8

13.0

10.9

10.2

10.1

10.0

9.84

15.8

15.2

12.0

10.2 

11.2

10.1

9.30

12.3

11.2

10.2

13.2

12.3

342.24

11.80

-

-

Mar.

10.6

10.1

10.2

10.0

9.70

9.74

10.7

16.0

fl3~75

11.0

10.3

9.66

10.2

15.4

15.5

12.9

c!3.6

C13.0

13.4

12.3

11.5 

 11.2

11.4

12.5

12.0

11.2

11.1

11.2

11.7 

13.6

366 . 80

11.83

-

-

Apr.

10.6

10.3

11.1

10.9

10.5

10.3

*12.2

21.6

18.6

15.2

12.5

11.5

11.0

10.9

fll.4

13.8

12.0

11.3

11.2

10.9

10.9 

10.5

10.9

10.9

10.6

11.0

11.4

11.0

10.7 

11.3

357.0

11.90

-

-

May

10.7

10.7

12.9

11.9

11.2

10.7

15.7

12.9

11.5

10.9

10.8

10.6

10.6

10.5

10.5

10.8

10.4

10.4

10.5

10.1

9.99 

9.69

9.78

9.90

9.69

*!^

10.8

11.2

10.3 

9.78

334.82

10.80

-

-

June

9.99

11.2

1.7.8

13.3

11.1

10.2

9.86

9.65

9.28

9.40

9.53

9.49

9.32

9.16

9.12

8.96

8.84

8.80

8.76

¥758"

9.32 

9.95

9.86

10.2

9.61

9.16

*9.08

9.81

10.7 

9.65

299.98

10.00

-

-

July

8.96

8.76

8.76

8.72

12.0

13.2

11.1

9.82

11.3

11.3

9.74

9.00

9.08

9.86

9.32

9.20

9.28

*9.16

8.84

8.80

14.2 

13.8

11.0

9.86

9.36

9.04

11.9

11.3

9.95 

8.84

314.17

10.13

-

-

Aug.

8.68

8.56

8.52

8.52

8.60

10.1

12.0

10.4

9.36

8.84

8.56

S.44

8.44

8.64

8.68

8.52

8.48

8.40

8.08

8708

IZ^i

11.5

9.74

9.04

8.84

8.56

8.48

8.52

9.20 

*8.76

281.56

9.08

-

-

Sept.

11.6

10.8

10.7

9.32

8.84

9.15

11.8

9.82

8.56

6.28

8.32

8.40

8.48

8.32

8.66

11.0

10.3

9.49

9.20

9.65

9.24 

8.88

a9.20

alO.3

*9.49

8.80

8.52

10.4

9.78 

9.16

284.46

9.48

-

-

Calendar year 1955: Max 105 Min 6.40 Mean 10.24 Cfsra - In. -

Water year 1955-56: Max 45.5 Mln 8.00 Mean 10.75 Cfsm - In. -

Peak discharge (base. 32 efs). Oct. 16 (about 12:30 a.m.) about 60 cfs; Nov. 4 (9 p.m.) 32.5 cfs 

(0.725 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for other streams in Nassau County.

b Stage-discharge relation affected by ice.

c Baclcwater from high tide.

f Fragmentary gage-height record; discharge computed,from partly estimated gage heights.

Note. Discharge per square mile and runoff In inches not computed because much of the surface flow 

is derived from ground-water storage that may originate from an area differing from that of the surface drainage.

505690 O - 59 - 3
STREAMS OK LONG ISLAND 23

Nissequogue River near Smithtown, N. Y.

Location. Lat 40°50'55", long 73°13'25", on left bank half a mile downstream from Blydenburgh Pond, 1 mile southwest of Smithtown, Suffolk County, and lj miles southwest of 

Smithtown Branch.

Drainage area. About 27 sq mi.

Records available. October 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 9.59 ft above mean sea 

level, datum of 1929.

Average discharge. 13 years, 41.78 cfs.

Extremes. Maximum discharge during year, 324 cfs Oct. 15 (gage height, 1.96 ft), from 

rating curve extended above 128 cfs by logarithmic plotting; minimum, 32.3 cfs Aug. 13 

(gage height, 0.614 ft); minimum daily, 35.0 cfs Aug. 14.

1943-56: Maximum discharge, that of Oct. 15, 1955; minimum, 18.6 cfs Feb. 9, 1951 

(gage height, 0.460 ft); minimum daily, 20.0 cfs Oct. 6, 1947.

Remarks. Records excellent except those for periods of backwater from aquatic vegetation, 

which are good. Some regulation caused by cleaning of fish screens and trash racks at 

outlets of Blydenburgh Pond on main stream and ponds on tributaries above station. 

This station is operated in connection with an inventory of water resources on Long 

Island. In addition to records of streamflow, records of ground-water levels are collected, some of which are published in water-supply papers. See page 603 for results of 

discharge measurements of Long Island streams at sites other than regular gaging 

stations.

Revisions. WSP 1141: Drainage area.

Rating tables, water year 1955-56, except periods of backwater from aquatic 

vegetation (gage height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 18, 

July 21 to Sept. 3O

.9

34.1

43.0

75.9

1.1 

1.4 

1.8

114

179

280

Feb. 18 to July 21

42.0

74.2

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct. -

39

38

37.5

37

56.5

38.5

54

51

47

42

40.5

*59.5

58.4

59.6

107

256

16O

88.5

62.2

62.2

60.6

57.0

55.8

44.8

44.1

48.0

49.7

52.5

58.1 

66 . 8

72.1

1,925.7

62.05

_

-

Nov.

67.5

*60.0

57.3

*94.5

*125

106

87.1

77.0

7O.O

66.2

75.0

70.5

66.9

69.8

69.0

71.7

71.8

67.8

67.4

66.6

65.2

64.9

57.0

56.1

58.8

59

59

59

58 

58

2,099.5

69.98

_

-

Dec.

57

58

58

58

59

58

57

57

57

57

56

56

*55

55.3

55.5

55.5

55.0

50.7

49.8

51.9

50.8

50.5

50.3

55.6

54.6

54.5

54.0

52.8

55.2 

55.5

55.5

1,697.6

54.76

_

-

Jan.

55.5

55.5

55.5

54.0

53.8

55.6

55.9

58.4

6O.1

62.2

60.5

60.0

61.5

59.6

58.8

57.4

58.4

56.6

*55.1

54.6

54.0

55.8

52.8

52.5

52.0

51.9

51.6

51.6

52.0 

58 .4

62. 5

1,735.5

55.92

_

-

Feb.

58.9

61.1

64.7

62.5

61.5

61.0

73.0

66.4

61.8

60.6

61.6

66.6

64.2

59.8

58.4

57.4

57.6

67.9

69.5

64.5

58.4

55.7

54.5

55.6

*60.1

58.4

56.6

64.7

62.2

1,782.8

61.48

_

-

Mar.

58.8

57.9

57.7

56.4

56.2

56.4

59.6

67.1

65.2

59.2

56.6

55.6

54.4

60.1

65.7

61.7

61.5

58.7

60.1

58.2

57.6

60.7

60.8

 61.3

59.6

58.8

58.1

57.0

59.3 

60.5

59 0

1,835.6

59.21

_

-

Apr.

57.4

56.8

56.8

55.8

54.8

55.1

58.1

73.2

72.5

67.5

62.7

58.4

58.9

57.2

59.2

64.5

*61.8

59.6

57.7

57.2

56.6

56.0

56.2

55.7

55.4

56.2

56.3

57.2

56.4

55.2

1,765.8

58.86

-

May

55.5

54.4

56.6

56.2

55.1

56.5

63.7

59.0

55.8

55.5

54.5

55.9

53.5

53.7

54.1

55.3

52.5

52.5

*52.2

52.5

52.1

51.1

51.2

51.4

51.1

50.8

54.5

55.6

55.6

52.5

51.5

1,676.2

54.07

_

-

June

52.5

56.6

69.4

'6579

59.0

57. 0

55.3

48.7

49.9

51.8

50.9

54.1

49.0

48.9

47.1

49. 0

46.8

45.5

45.6

*44.6

44.0

47.6

45.2

47.4

46.3

45.5

45.1

46.2

45.7

45. 2

1,501.8

50. 06

_

-

July

45.2

45.5

46.1

45.0

54.2

55.8

51.5

49.8

58.2

56.4

47.0

45.8

46.2

47.7

46.3

46.7

48.6

45.3

45.0

*44.2

61.1

65.2

57.6

55.1

50.5

49.6

48.2

48.7

46.3

46.0

45.5

1,541.7

49.75

_

-

Aug.

45.0

44.8

*44.5

42.8

45.5

45.4

46.8

46.6

46.2

45.5

5O.O

57.9

4074

55.0

59.5

40.7

41.4

41.9

41.6

45.6

48.2

47.4

46.0

45.3

44.6

43.8

43.9

45.1

42.6

43.8

44.1

1,377.5

44.44

-

Sept.

42. 0

45.2

43.2

43.5

42.0

*45.5

49.7

46.2

44.7

45.9

45.1

45.5

43.6

42

44

46

47.5

47

45

45.5

44.5

45.5

45.5

46.5

45.5

44

45.5

49.5

47

45.5

1,345.9

44.86

-

Calendar year 1955: Max 256 Min 30.5 Mean 47.38 Cfsm - In. -

Water year 1955-56: Max 256 Min 35.0 Mean 55.41 Cfsm - In. -

Peak discharge (base, 80. O cfs). --Oct. 15 (11 p.m.) 324 cfs (1.96 ft); Nov. 5 (10 a.m.) 129 cfs

(1.175 ft); July 9 (8:45 p.m.) 83.4 cfs (0.958 ft); Aug. 12 (4:15 p.m.) 99.2 cfs (1.O25 ft).

* Discharge measurement made on this day.

Note. Backwater from aquatic vegetation Oct. 1-12, Nov. 26 to Dec. L3, Sept. 14-30. Discharge

per square mile and runoff In inches not computed because much of the surface flow is derived from

ground-water storage that may originate from an area differing from that of the surface drainage.
STREAMS ON LONG ISLAND

Peconlc River at Riverhead, N. Y.

Location. La t 40°54'50", long 72 "41'10", on right bank 200 ft downstream from Long Island

 Lighting Co. dam, 0.4 mile west of Riverhead, Suffolk County, and 1.2 miles upstream 

from outlet of Sweezy Pond.

Drainage area. About 75 sq mi.

Records available.--June 1942 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 6.54 ft above mean sea 

"^level, datum of 1929.

Average discharge.--14 years, 33.25 cfs.

Extremes.--Maximum discharge during year, 107 cfs Nov. 7 (gage height, 0.857 ft); minimum,

 10.2 cfs July 1 (gage height, 0.297 ft, backwater from aquatic vegetation); minimum 

daily, 22.8 cfs July 1.

1942-56: Maximum discharge, 140 cfs Apr. 14, 1953 (gage height, 0.966 ft); minimum, 

1.52 cfs Jan. 8, 1952, result of freezeup (gage height, 0.108 ft); minimum daily, 

3.67 cfs Aug. 2, 1944.

Remarks.--Records excellent except those for periods of backwater from aquatic vegetation,

 which are good, and those for periods of backwater from debris, which are fair. Flow 

regulated by ponds above station. This station is operated in connection with an inventory of water resources on Long Island. In addition to records of streamflow, records 

of ground-water levels are collected, some of which are published in water-supply 

papers. See page 603 for results of discharge measurements of Long Island streams at 

sites other than regular gaging stations.

Revisions.--WSP 1141: Drainage area.

Rating table, water year 1955-56, except periods of backwater from 

aquatic vegetation or debris (gage height, in feet, and discharge, in cubic feet per second)

0.41 

.5 

.65 

.85

22.1

33.9

59.9

106

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

L6

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

27

27

26.5

*25.5

25.1

25.5

32

34.5

34

32.5

31.5

31.5

31.5

32

38.5

82

69

65

65

66

65

62

59

57

53

48.5

47

42.5

45

48.5

52

1,381.1

44.55

-

-

Nov.

48

*41.5

39.1

52TT

77.3

79.7

90.1

So- 95

ss

90

89

85

85

84

84

84

79

77

76

74

72

70

69

67

66

64

63

62

61

2,201.8

73.39

-

-

Dec.

57

53

*53

54.3

56.6

56.0

54.9

53.9

53.3

53.5

52

51

51

49.5

49

48.5

48

48.5

48

46.5

45.5

45

45.5

45

44.5

44

44

43.5

43.5

43.5

il

1,524.5

49.18

-

-

Jan.

42.5

41.5

42

*40.5

37.1

36.4

3S7?

37.1

38.5

42.4

46.0

48

50

50

51

56

5753"

52

50

48.5

47

46.5

45

44.5

43.5

42.5

42

42

43

48

1,400.4

45.17

-

-

Feb.

*46.5

47.7

50.9

50.9

52.2

52.0

57.1

57.1

56.8

56.6

57.2

61.9

61.7

60

60

60

59

63

66

65

65

63

56

62

67

66

63

68

68

1,719.6

59.30

_

-

Mar.

67

67

67

66

65

67

69

72

72

70

69

69

68

70

72

71

74

73

74

15

73

72

72

*74

73.7

72.2

70.9

69.5

68.8

71.6

71.2

2,185.9

70.51

_

-

Apr.

70.3

70.1

71.8

72.4

73.7

72.6

70.9

75

76

75

76.8

79.0

79.3

78TT

76.4

79.0

79.3

76.2

*73.7

70.9

69

68

66

64

62

62

62

62

62

60

2,133.5

71.12

-

-

May

56

55

57

60

62

63

67

66

64

63

61

60

60

58

57

56

*55

54

53

51

47.5

47

48

49

49.5

49

51

52

51

49.5

48

1,719.5

55.47

-

-

June

43.5

32

48

52

54

66

69

62

50

55

54

52

*49

43.5

42

43

41.5

41

43

44

43.5

40.5

39

43.5

46

45

41

39

37.5

36.5

1,396.0

46.53

-

-

July

2B~~ 22.8

49.5

51

4T

*47.5

50.2

50.4

48.5

46

46

44.5

43.5

43

41.5

40.5

40

39

38.5

35.5

39.5

46.5

49

48.5

46

46

48.5

49

47

45.5

44.5

1,357.9

43.80

-

-

Aug.

43.5

4?^

40.5

37

34

34

36

36.5

36.5

35

31

23.2

2TT5"

28

29.5

30

30

29.5

29

27.5

29

29.5

*30.5

32.4

32.5

31.5

30.5

29

27.5

26.5

26.5

985.1

31.78

-

-

Sept.

26

26

25.5

25.5

26

26.5

*27

27.3

28.2

28.5

28

27

26.5

25.5

24.8

25

25.5

27

26.5

28

29.5

30

30.5

30

29.5

29.5

30

34

3T

33

840.3

28.01

-

-

Calendar year 1955: Max 95 Min 16.5 Mean 44.49 Cfsm - In. -

Water year 1955-56: Max 95 Min 22.8 Mean 51.49 Cfsm - In. -
STREAMS ON LONG ISLAND 25

Carmans River at Yaphank, N. Y.

Location. Lat 40°49'50", long 72°54 I 20", on left bank 50 ft upstream from Long Island 

Railroad bridge, a quarter of a mile northeast of Yaphank station, and half a mile 

southeast of Yaphank, Suffolk County.

Drainage area. About 71 sq mi.

Records available. June 1942 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 19.04 ft above mean 

sea level, datum of 1929.

Average discharge. 14 years, 23.16 ef s.

Extremes.--Maximum discharge during year, 81.6 cfs Oct. 16 (gage height, 1.178 ft); minimum, 20.4 cfs Sept. 11 (gage height, 0.588 ft, backwater from aquatic vegetation); minimum daily, 22.3 cfs Oct. 4,5.

1942-56: Maximum discharge, 83.2 cfs Sept. 11. 1954 (gage height, 1.247 ft); minimum, 6.60 cfs Feb. 9, 1951 (gage height, 0.325 ft); minimum daily, 6.70 cfs Nov. 27, 

1943.

Remarks.--Records excellent except those for periods of backwater from aquatic vegetation, 

which are good. Some regulation by two lakes above station. This station is operated 

in connection with an inventory of water resources on Long Island. In additions to 

records of streamflow, records of ground-water levels are collected, some of which are 

published in water-supply papers. See page 603 for results of discharge measurements 

of Long Island streams at sites other than regular gaging stations.

Revisions. WSP 1141: Drainage area.

Rating tables, water year 1955-56, except periods of backwater from aquatic 

vegetation (gage height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 4 Nov. 5 to July 21 July 22 to Sept. 30

0.59

.7

.85 

1.01

21.7

30.9

45.5

63.1

0.68 

.93

29.9

54.3

0.61 

.85

22.3

45.5

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

24.7

23.4

22.7

22.3

ZTT5

23.8

32.0

27.3

25.9

25.0

24.1

23.5

23.1

23.3

38.2

63.1

5577

44.3

*40.4

38.3

37.2

36.2

35.7

35.5

35.7

34.9

34.3

34.0

33.9

36.3 

36.9

1,009.0

32.55

-

-

Nov.

34.6

33.3

32.9 *4T79-

55.5

46.4

41.4

34.7

35.7

36

40

38

37.5

38.5

38

40.5

40

38

37.5

38

37.5

36.5

36.5

36

35.5

35.5

35

35.5

35

34.5

1,136.9

37.90

-

-

Dec.

34

34.5

*34.5

34. S

54.9

34.2

54.0

55.9

34.0

54.1

55.8

55.5

53.2

55.2

33.2

55.2

55.0

52.9

52.9

32.5

32.1

32.3

32.5

52.4

52.7

52.5

51.7

51.5

3175

31.6 

31.5

1,026.3

53.11

-

-

Jan.

31.3

51.2

52.0

51.9

51.5

51.2

51.1

30.8

53.6

54.6

33.4

35.5

55.9

52.9

52.5

*51.9

33.0

31.2

31.3

31.2

30.8

30.7

30.7

30.3

30.1

30.0

29.9

5579

30.4

33.5 

34.0

984.1

31.75

-

-

Feb.

32.1

*33.8

35.0

33.7

33. S

35.6

37.7

34.9

34.0

33.4

35.4

38.5

38.2

36.2

34.0

30.5

STT?

59.7

41.2

577?

55.4

52.8

55.2

53.5

36.5

35.5

54.8

40.1

57.5

1,022.6

55.26

-

-

Mar.

36.1

55. S

36.2

55.8

55.0

35. S

36.9

40.2

37.8

*36.3

35.8

35.7

36.0

59.5

58.8

58.1

57.5

57

59

42

40

58.5

55.5

55.5

3 6. .5

37

57.5

58

59.5

58.5 

57.5

1,159.1

57.39

-

-

Apr.

37.5

57

58

37.5

37.5

57

58.5

44.5

42

40.5

59

58.5

58.5

38.5

39

41

40.5

59

58.5

59

59.5

57.5

58

*58

57.5

56.7

57.

35.5

3T73-

58

1,156.7

58.56

-

-

May

38

57.5

39

57.5

*56

59.4

59 42.5

57.5

57

56.5

56.5

57

56.5

56

56.5

56

36

35.5

56

35.5

35

35.5

55

34.5

34.5

38

37.5

56.5

55.5 

55

1,158.4

56.72

-

-

June

55.5

37.5

44

59.5

57.5

56.5

56

35

55.5

55

55

*54.5

54.0

33.4

35.2

33.0

33

32.5

52

5?. 5

55.5

34

35

34

33.5

32

32

34

54

52

1,033.1

34.44

-

-

July

52

52.5

55

52

*37

42.2

35,7

52.0

54.4

53.5

52.6

51.6

31.5

52.1

51.7

52.7

52.8

51.6

31.2

31.1

42.1

45.2

59.4

29.8

29.5

29.8

32.4

31.8

50.5

29.7 

29.5

1,050.7

33.25

-

-

Aug.

29.3

29.2

*28.9

28.2

28.4

29.8

50

28.5

23

28

28

28

28.5

28.5

28

28

28

27.5

27.5

27.5

51

30

29

28.5

28.5

28

28

28

27

27 

28

880.8

28.41

_

-

Sept.

28

28.5

28

27.5

27

*27

28.3

27

26.5

26.5

25

29

42.5

35

22.4

24.2

27

28.5

27.5

28

27

27

27.5

28.5

27

26.5

27

52.5

29.5

27.5

843.4

28.11

_

-

Calendar year 1955: Max 63.1 Mln 20. o Mean 28.91 Cfsm - In. -

Water year 1955-56: Max 63.1 Mln 22.3 Mean 33.94 Cfsm - In. -
STREAMS ON LONG ISLAND

Swan River at East Patchogue, N. Y.

Location. Lat 40°46'00", long 72°59'35", on left bank 94 ft downstream from Montauk Highway in East Patchogue, Suffolk County, 200 ft downstream from outlet of Swan Lake, 

IT; miles upstream from mouth, and l£ miles east of Patchogue.

Drainage area. About 8.8 sq mi.

Records available.--October 1946 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 2.84 ft above mean sea 

level, datum of 1929.

Average discharge. 10 years, 12.75 cfs.

Extremes. Maximum discharge during year, 42 cfs Oct. 16 (gage height, 1.464 ft, backwater 

from debris below control), from rating curve extended above 18 cfs by logarithmic 

plotting; minimum, 0.25 cfs June 22 (gage height, 0.077 ft, backwater from aquatic 

vegetation); minimum daily, 9.5 cfs Sept. 4.

1946-56: Maximum discharge, 47 cfs Aug. 12, 1955 (gage height, 1.521 ft, backwater 

from debris below control), from rating curve extended above 18 cfs by logarithmic 

plotting; maximum gage height, 1.801 ft Sept. 11, 1954 (backwater from debris below 

control); minimum discharge, 0.1 cfs Feb. 6, 1947 (gage height, 0.050 ft); minimum 

daily, 6.1 cfs Oct. 18, 1953.

Remarks.--Records excellent except those for periods of backwater from debris or aquatic 

vegetation, which are good, and those for periods of no gage-height record or backwater 

from high tide or debris below control, which are fair. Plow regulated infrequently at 

outlet of Swan Lake. This station is operated in connection with an inventory of water 

resources on Long Island. In addition to records of streamflow, records of groundwater levels are collected, some of which are published in water-supply papers. See 

page 603 for results of discharge measurements of Long Island streams at sites other 

than regular gaging stations.

Rating tables, water year 1955-56, except periods of backwater from aquatic 

vegetation, high tide, or debris on or below control (gage height, In 

feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 24 Apr. 24 to Sept. 3O

0.53 

.6 

.87

11.3

14.6

31.1

0.47 

.6 

.72

9.28

15.4

22.1

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

12.8

12.0

11.8

*11.6

TT77

12.9

18.5

14.3

13.0

12.5

12.4

12.4

12.1

12.7

23

31

22.5

18.0

17.2

16.4

16.1

15.9

15.7

16.1

16.3

16.0

16.0

16.0

15.1

17.1 

17 . 6

486.7

15.70

_

-

Nov.

16.3

16.0

16.0

*26.5

24.5

19.0

17.7

17.6

17.2

16.8

18.7

17.5

16.9

14.8

*18.5

19.5

18.6

17.3

17.4

17.5

17.2

17.2

17.1

17.0

17.7

17.3

16.9

16.9

16.7

16.5

534.8

17.83

-

-

Dec.

16.5

16.3

16.5

16.5

16.5

16.4

16.3

16.3

*16.3

16.3

16.2

16.2

16.2

16.2

16.1

16.0

15.9

15.8

15.8

16.0

16.4

16.1

16.1

15.8

16.7

16.5

16.3

16.2

a!6.2

a!6.0

"

502.4

16.21

_

-

Jan.

a!5.7

a!5.6

a!6.2

a!6.3

a!6.0

a!5.6

al5.6

a!5.6

17.2

17.0

16.0

15.8

15.8

15.2

15.0

*14.8

15.0

14.6

14.4

14.4

14.2

14.0

14.0

14.0

13.9

13.8

13.8

13.7

13.7

14.9 

15.3

467.1

15.07

_

-

Feb.

14.1

15.0

15.6

14.8

15.0

14.6

17.6

15.5

15.4

15.2

15,8

16,4

15.0

14.6

14.6

*14.2

14.3

17.3

16.4

15.8

15.0

14.6

14.7

H~11.8

14.1

13.9

15.3

a!5.5

440.1

15.18

_

-

Calendar year 1955: Max 31 Hln 9.4

Mar.

a!5.3

a!5.2

a!5.4

al.5.4

alS.O

15.8

16.0

17.3

16.2

*15.7

15.5

15.6

15.8

17.7

17.4

16.5

17

16.2

17.2

16.5

15.0

16.1

16.5

17.2

16.8

16.9

16.9

16.8

17.1

18.4

 ! 

508.9

16.42

_

-

Apr.

17.8

16.8

17.0

15.2

16.3

18.4

18.2

21.6

19.4

17.5

17.3

17.0

17.1

16.8

17.3

17.9

17.6

17.1

16.9

17.0

16.8

17.0

15.4

*14.2

18.2

17.5

17.3

17.0

16.1

517.9

17.26

_

-

May

15.9

16.8

18.3

17.8

17.0

17.3

20.5

17.7

16.6

17.4

16.7

*16.6

13.8

13.3

2O. 6

17.9

16.2

16.6

16.4

17.4

16.0

16.6

16.2

16.8

16.0

15.9

17.5

17.3

14.5

13.7 

14.3

515.6

16.63

-

-

June

15.7

14.9

20.8

1873

16.6

17.9

16.4

16.0

15.6

14.9

17.3

*16.0

15.6

15.4

16.4

16.2

15.6

15.6

15.6

16.2

16.0

15.4

14.0

12.1

15.8

14.0

14.8

15.4

16.0

15.8

476.4

15.88

-

-

July

14.8

14.4

13.8

T472

16.2

*17.6

15.8

15.4

15.9

15.5

14.4

14.2

14.1

14.4

14.1

14.3

15.3

16.1

17.4

16.3

22

19.5

16.6

16.0

15.8

15.4

16.6

17

16.1

15.1 

15.0

489.3

15.78

-

-

Aug.

14.4

15.0

15.0

14.7

14.9

15.9

15.8

15.2

15.0

14.9

14.6

14.4

14.5

15.2

14.1

14.0

14.2

14.2

14. 0

13.9

15.3

14.6

*14.1

14.0

11.2

12.2

10.4

16.2

16.4

13.8 

13.6

445.9

14.38

-

-

Sept.

13.6

13.4

13.0

9.5

1372

*14.0

13.8

a!3.4

a!3.2

a!3.0

a!2.8

a!3.0

13.6

13.4

13.4

13.8

13.8

13.4

13.0

13.2

11.8

13.4

13.4

13.6

12.8

12.6

12.8

15.6

13.6

13.2

396.3

13.21

-

~

Mean 14.41 Cfsm - In. -

Water year 1955-56: Max 31 Mln 9.5 Mean 15. SO Cfsm - In. -

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on 

recorded range In stage, weather records, observer's tape-gage readings, and records for nearby 

streams.

Note. Backwater from aquatic vegetation Oct. 1-4, June 15 to July 6, Aug. 25 to Sept. 6, 

Sept. 13-30 (no gage-height record Sept. 13-18). Backwater from debris Nov. 4, Jan. 9-16, July 21 

(no gage-height record Jan. 9). Backwater from debris below control Oct. 7, 15-17, Nov. 4, 5, 15, 

16, Feb. 25, Mar. 31, July 21, 22, 28, Aug. 13. Backwater from high tide Oct. 16, 17, Mar. 16, 17. 

Discharge per square mile and runoff In Inches not computed because much of the surface flow Is 

derived from ground-water storage that may originate from an area differing from that of the surface 

drainage.
STREAMS ON LONG ISLAND 27

Patchogue Creek at Patchogue, N. Y.

Location. Lat 40°45'55", long 73°01'15", on left bank just downstream from Montauk Highway in Patchogue, Suffolk County, 1 mile upstream from mouth.

Drainage area. About 13.5 sq mi.

Records available.--October 1945 to September 1956.

Gage. Water-stage recorder. Datum of gage is 0.50 ft above mean sea level, datum of 

1929. Auxiliary water-stage recorder on right bank 254 ft downstream from base gage.

Average discharge. 11 years, 20.67 cfs.

Extremes. Maximum daily discharge during year, 82.7 cfs Oct. 16; minimum daily, 7.8 cfs 

July 26.

1945-56: Maximum daily discharge, that of Oct. 16, 1955; minimum dally, 2.1 cfs 

Nov. 21, 1954.

Remarks.--Records good. Occasional regulation by powerplant above station. This station 

is operated in connection with an inventory of water resources on Long Island. In 

addition to records of streamflow, records of ground-water levels are collected, some 

of which are published in water-supply papers. See page 603 for results of discharge 

measurements of Long Island streams at sites other than regular gaging stations.

Revisions.--WSP 1141: Drainage area.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

22.6

23.0

19.7

17.5

16.5

18.7

23.4

31.4

29.5

23.6

*17.6

16.0

16.5

19.2

31.7

82.7

56.6

46.8

41.5

25. 9

10.1

17.4

26.4

29.2

28.8

28.3

*28.3

28.4

24.6

25.0

850.5

27.44

-

-

Nov.

29.1

29.1

28.5

37.4

45.9

41.3

34.5

*24.7

24.7

26.7

31.8

35.6

33.8

32.9

32.5

34.0

35.6

34,3

34.3

34.1

31.4

32.0

31.3

31.1

*31.0

30.7

30.4

24.9

22.9

24.7

949.2

31.64

-

-

Dec.

26.3

26.7

27.2

27.2

27.5

27.8

27.6

31.0

*24.4

37.3

37.7

*24.8

19.9

22.2

*25.2

26.1

26.3

26.2

*26.1

26.2

26.4

*26.3

26.5

26.4

26.1

26.7

*26.6

25.8

25.1

24.9

24.8

829.3

26.75

-

-

Jan.

25.1

25.2

25.3

25.2

*25.2

24.0

24.4

24.3

22.7

22.0

22.5

22.7

22.9

28.5

50.5

*28.2

28.4

28.8

23.2

15.7

17.3

19.7

21.3

22.7

*25.5

22.1

24.8

25.7

25.0

25. 6

26.3

750.6

24.21

-

-

Feb.

26.4

27.8

26.3

25.9

25. B

26.8

33.0

26.6

25.8

25.8

26.4

26.8

27.1

26.8

26.4

*26.1

26.0

28.9

29.2

29.5

27.3

27.0

28.7

26.5

27.3

27.8

*27.5

42.4

39.0

816.9

28.17

-

-

Mar.

28.0

21.5

23.1

22.9

16.1

14.7

21.8

39.0

33.5

*23.4

24.3

26.5

29.3

31.5

33.5

31.4

36.5

36.8

44.2

43.8

33.5

24.8

19.8

19.7

23.7

31.0

33.2

*31.2

28.6

31. 9

23.2

882.4

28.46

-

-

Apr.

24.7

31.6

30.2

29.0

*20.5

22.4

22.9

29.6

59.0

35.0

2.5

3.6

6.2

8.5

8.0

7.7

8.1

28.7

29.2

29.1

29.5

29.1

29.5

*29.0

30.4

31.9

28.2

29.4

30.0

29 5

873.0

29.10

-

-

May

29.2

28.9

29.3

28.9

28.7

28.9

31.4

36.4

41.6

39.3

35.7

*29.4

29.0

32.0

30.1

27.0

31.6

36.8

34.4

33.4

26.0

22.8

22.8

29.8

31.0

*28.4

28.4

34.0

32.0

28 . 6

32.0

957.8

30.90

-

-

June

32.3

29.3

30.5

46.9

30.4

20.9

36.3

35.9

26.7

27.0

30.2

*36.2

36.8

18.6

25.2

20.5

20.9

27.4

26.8

26.9

26.5

26.2

26.3

25.7

20.7

*21.5

25.4

29.2

*30.0

29.0

846.2

28.21

-

-

July

27.8

18.5

15.9

21.7

56.1

35.4

27.5

24.6

29.2

28.5

*23.5

22.7

29.5

28.6

27.7

23.8

22.6

20.7

25.7

*26.9

28.7

33.9

35.1

23.4

16.5

7.8

50.2

53.2

19.8

29 2 

3o!l

802.8

25.90

_-

-

Aug.

19.5

22.9

*26.8

25.6

22.0

17.7

21.9

26.6

21.9

jj.4

20.0

21.6

22.9

27.6

17.5

18.2

22.0

21.9

21.6

22.1

25.5

26.9

*24.9

22.3

19.7

18.9

22.0

26.7

27.5

22.0

700.8

22.61

-

-

Sept.

21.3

21.4

21.

21.

22.

22.

22.

22.

22.

16.

12.

*26.

29.

21.

20.

24.

23.

18.

20.

25.

15.0

17.0

21.0

25.8

25.8

*22.6

22.8

22.5

21.8

22.1

651.0

21.70

-

-

Calendar year 1955: Max 82.7 

Water year 1955-56: Max 82.7

Mln 

Min

10.1 

7.8

Mean 

Mean

23.87

27.08

Cfsm - 

Cfsm - In. -

* Discharge measurement made on this day.

Note.--Discharge per square mile and runoff in inches not computed because large portion of flow 

is derived from ground-water storage that may originate from an area differing from that of the 

surface drainage.
28 STREAMS ON LONG ISLAND

Connetquot River near Oakdale, N. Y.

Location. Lat 40°44'50", long 73°09'00", on left bank Just downstream from highway bridge, 

1 mile west of Oakdale, Suffolk County, and 2 miles north of village of Great River.

Drainage area. About 24 sq mi.

Records available. October 1943 to September 1956.

Gage. Water-stage recorder and wooden stoplog control. Datum of gage Is 1.56 ft above 

mean sea level, datum of 1929. Supplementary water-stage recorder with concrete 

control on left bank of secondary channel a quarter of a mile northeast of base gage at 

datum 5.74 ft above mean sea level, datum of 1929.

Average discharge. 13 years, 39.99 cfs.

Extremes.--Maximum dally discharge during year, 263 cfs Oct. 16; minimum dally, 32.8 cfs

1943-56: Maximum dally discharge, that of Oct. 16, 1955; minimum dally, 23.4 cfs 

Sept. 10, 1944.

Remarks. Records good except those for periods of doubtful or no gage-height record, or 

backwater from aquatic vegetation, debris or high tide, which are fair. Plow at both 

gages regulated occasionally by cleaning operations at outlets of ponds above station. 

Discharge figures given are those of combined flows In main and secondary channels. 

This station is operated in connection with an inventory of water resources on Long 

Island. In addition to records of streamflow, records of ground-water levels are 

collected, some of which are published In water-supply papers. See page 603 for results 

of discharge measurements of Long Island streams at sites other than regular gaging 

stations.

Revisions. WSP 1141: Drainage area.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

36.1

34.2

33.2

32.8

3278

36.1

52.9

42.9

38.8

37.1

36.0

35.7

35.3

38.5

99.6

263

150

106

*94.3

78.2

71.4

67.2

64.7

64.6

64.1

57.9

*57.8

56.9

56.1

76.4

71.6

2,022.2

65.23

-

-

Nov.

63.7

*61.7

59.4 *105

*110

91.4

78.6

*71.8

67.5

66.1

74.6

68.0

64.4

64.9

63.1

70.2

68.8

63.6

63.1

62.0

61.6

61.2

6O.2

59.2

58.2

57.3

56.9

56.6

55.7

54 . 8

2,019.6

67.32

-

-

Dec.

54.3

54.5

*54.6

54.7

527T

53.2

53.2

*52.7

52.4

51.8

51.0

50.5

50.0

49.5

49.9

49.6

48.9

48.8

48.8

48.1

47.7

Z57T

48.5

48.7

49.8

C49.5

C48.5

48.4

48.3

48. 5

48. 1

1,562.7

50.41

-

-

Jan.

48.0

47.4

48.4

48.3

48.1

47.9

47.6

46.8

52.6

57.0

52.1

51.7

52.0

50.6

49. 0

48.9

50.2

47.2

*46.7

47.7

47.0

46.7

46.7

46.4

46.1

46.1

45.8

45.8

46.0

51.7

53.8

1,510.3

48.72

-

-

Feb.

49.6

53.4

58.8

55.2

55.4

55.0

57.1

61.1

58.2

56.2

59.1

65.2

57.9

54.9

54.4

52.8

53.6

71.0

67.5

*61.6

58.0

57.1

55.1

53.8

59.8

56.5

53.9

69.6

60.9

1,682.7

58.02

-

-

Mar.

57.0

56.8

55.8

53.9

52.5

54.0

55.4

64.1

61.3

57.6

55.2

53.2

53.4

62.2

63.8

59.7

57.1

56.2

55.4

55.5

54.8

55.0

56.8

*60.3

57.3

56.1

57.2

*57.8

58.0

61.7

59.0

1,773.9

57.22

-

-

Apr.

57.0

55.6

56.0

55.5

54.3

52.9

56.9

73.3

71.5

*63.4

61.1

59.3

58.2

56.9

57.2

62.1

59.4

56.0

54.5

54.1

54.2

53.3

51.9

51.6

51.6

52.3

52.0

51.2

50.1

49.1

1,692.5

56.42

-

-

May

49.5

49.6

51.6

50.4

49.1

49.1

59.6

53.3

51.0

51.4

49.3

50.1

49.3

49.0

*50.5

50.0

49.4

49.0

48.5

48.5

47.7

48.0

49.3

49.1

48.0

47.6

53.8

52.8

48.6

48. 4

49.4

1,550.9

50.03

-

-

June

49.3

*53.O

68.6

"5878

55.1

51.3

52.7

50.7

50.7

50.2

C45.2

C52.8

C47.8

45.0

48. 0

46.4

47.0

44.4

48.4

*46.3

47.7

45.8

43.8

50.3

46.7

42.9

49.1

47.2

49.7

44.3

1,479.2

49.31

-

-

July

47.2

43.8

43.4

42.6

49.7

56.4

51.9

46.8

49.2

*47.3

45.4

44.1

44.2

45.4

44.2

43.8

44.7

42.6

42.0

42.6

66.1

61.4

50.5

48.3

47.4

45.3

47.9

46.5

44.2

42.2

42.1

1,459.2

47.07

-

-

Aug.

42.0

41.2

40.3

4O.7

41.3

43.2

43.2

40.9

40.3

40.4

39.9

39.2

39.9

42.3

39.4

*38.9

38.6

38.8

38.7

58.2

45^5

44.8

4O.6

39.5

38.9

38.4

38.2

38.4

42.0

40.5

40.6

1,254.8

40.48

-

-

Sept.

39.4

38.9

37.9

37.3

37.3

37,8

39.5

37.6

36.4

37.7

37.8

*39.2

38.4

37.5

37.4

40.6

40.5

42.1

38.8

*38.8

38.1

37.3

37.0

39.3

38.1

36.8

37.5

52^

44.3

40. 8

1,173.0

39.10

-

-

Calendar year 1955: Max 263 Mln 27.8 Mean 46.64 Cfsm - In. -

Water year 1955-56: Max 263 Mln 32.8 Mean 52.41 Cfsm - In. -

* Discharge measurement made at one or both gages on this day.

c Backwater from debris at supplementary gage.

Note.--Backwater from high tide at base gage Oct. 4, 13-2O, Oct. 30 to Nov. 7, Nov. 11, 12, 15-17, 

21, Jan. 9-13, 15-17, Feb. 12, 13, 15, Mar. 18, Apr. 12-18, May 15-17, June 8-12, 22, 24, 25, 

July 6-11, 13, Aug. 5-11, 18, 21-25, 31, Sept. 2-7, 16, 17, 19, 20, 27-30. Backwater from aquatic 

vegetation at supplementary gage Nov. 11 to Dec. 13, Dec. 18 to Jan. 19, Jan. 28 to Feb. 20, 

Mar. 1-28. No gage-height record at base gage May 18-20; discharge estimated on basis of recorded 

range In stage and weather records. Doubtful gage-height record at supplementary gage Oct. 16, 17; 

discharge computed from reconstructed gage-height graph based on shape of normal peaks and record 

for adjacent days. Discharge per square mile and runoff In Inches not computed because much of the 

surface flow Is derived from ground-water storage that may originate from an area differing from 

that of the surface drainage.
STREAMS ON LONG ISLAND 29

Champlin Creek at Islip, N. Y.

Location. Lat 40°44'15", long 73°12'05", on right bank Just upstream from Long Island 

Railroad bridge, 220 ft downstream from Moffltt Boulevard, at Islip, Suffolk County, 

and if miles upstream from mouth.

Drainage area.--About 6.5 sq ml.

Records available. June 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 10.85 ft above mean 

sea level, datum of 1929.

Average discharge. 8 years, 7.95 cfs.

Extremes. Maximum discharge during year, 129 cfs Oct. 15 (gage height, 1.411 ft), from 

rating curve extended above 32 cfs by logarithmic plotting; minimum, 4.15 cfs Aug. 11 

(gage height, 0.315 ft).

1948-56: Maximum discharge, that of Oct. 15, 1955; minimum, 1.74 cfs Oct. 15, 1954 

(gage height, 0.208 ft, backwater from aquatic vegetation).

Remarks. Records good except those for periods of no gage-height record or backwater from 

aquatic vegetation or debris, which are fair. This station Is operated In connection 

with an Inventory of water resources on Long Island. Infrequent regulation at high 

stages by manipulation of stoplogs at small dam upstream. In addition to records of 

streamflow, records of ground-water levels are collected, some of which are published 

In water-supply papers. See page 603 for results of discharge measurements of Long 

Island streams at sites other than regular gaging stations.

Rating tables, water year 1955-56, except periods of backwater from aquatic vegetation 

or debris (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 4 Nov. 4 to Sept. 3O

3.37 6.25

.4 7.54

.5 12.3

0.65 

.9

1.2

22.6

47.0

90.0

0.33 

.4 

.5

4.59

7.21

12.2

0.6 

.7

18.6

26.8

36.2

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

7.19

6.63

6.29

6.29

6.33

7.29

11.3

7.98

7.10

6.80

6.71

6.63

6.59

7.78

37.4

85.0

33.6

27.0

24.0

21.9

19.9

IS. 6

17.8

17.1

16.4

15. S 

15.3

*14.6

14.1

20.4

16. 0

515.81

16.64

-

Nov.

14.3

13.8

13.6

*28.8

FT5

23.1

21.8

20.6

19.2

IS. 6

21.4

17.6

17.2

17.6

16.8

21.4

18.0

16. S

16.8

 16.8

16.4

16.0

15.8

15.4

15.0

14.8 

14.4

14.2

13.8

13L4

530.9

17.70

-

Dec.

13.4

13.4

13.2

13.2

13.0

12.6

12.4

12.4

12.4

12.2

11.8

11.8

11.8

11.4

*11.4

11.0

10.8

10.6

10.6

10.2

10.2

10.2

10.2

10.2

10.4

10.0

9.8

9.6

9.6

9.6

9.5

348.9

11.25

-

Jan.

9.4

9.2

9.7

9.5

9.4

9.3

9.2

9.2

11.0

10.6

10.0

10.0

10.0

9.7

9.4

9.4

9.4

9.2

9.1

9.5

9.2

8.9

8.7

S.6

8.4

¥734

8.34

a8.38

alO.3

a9.65

289.31

9.33

-

Feb.

*a9.10

12.0

11.2

10.7

10.7

11.7

*14.7

12.3

12.0

11.8

14.2

14.0

12.6

12.2

12.0

11.8

11.8

18.8

14.4

13.8

13.4

13.0

12.8

12.8

14.8

13.2 

13.0

17.2

14.0

376.00

12.97

-

Mar.

13.6

13.8

14.0

13.6

13.2

14.4

14.2

17.8

14.8

14.4

14.2

14.2

14.4

18.4

16.4

15.8

15.6

15.0

14.8

14.8

14.8

15.0

16.0

16.4

15.6

15.8 

16.2

*16.0

16.8

16.8

15.4

472.2

15.23

-

Apr.

15.0

14.6

14.2

14.0

13.4

12.8

13.8

18.0

14.4

*13.4

13.0

12.7

12.6

12.2

12.8

13.4

12.2

11.6

11.4

11.4

11.4

11.0

11.2

11.0

10.8

11.2 

10.8

10.6

10.4

10.0

375.3

12.51

-

May

9.9

10.0

10.4

9.8

9.5

9.5

12.6

*579"

9.40

9.55

9.25

9.20

9.10

9.26

9.35

9.15

9.00

8.86

8.67

S.86

8.67

8.67

9.44

9.20

8.76

8.62 

10.9

9.75

8.95

8.71

8 . 52

291.44

9.40

_

-

June

9.48

9.98

13.9

10.3

9.80

9.65

9.55

9.55

9.45

9.25

9.10

8.81

8.57

8.24

8.01

.78

.70

.52

* .34

.25

.3

.4

.2

8.1

7.4

2+L 

9.4

8.6

7.8

7.3

258.83

8.63

_

-

July

7.1

7.0

7.2

7.2

10.0

8.8

7.6

7.3

8.0

7.3

*7.0

6.83

7.00

7.21

6.7

6.6

6.7

6.6

6.5

6.42

18.2

11.2

9.45

8.6

7.65

7.30 

7.89

7.21

6.96

6.67

6.63

242.82

7.83

_

-

Aug.

6.54

6.54

6.38

6.22

6.22

6.67

6.50

6.2

6.0

5.95

5.83

5.91

6.87

7.21

6.1

*5.7

5.5

5.5

5.5

5.5

7.2

6.1

5.7

5.3

5.2

5.2 

5.2

6.6

7.9

579

5.6

188.74

6.09

_

-

Sept.

5.5

5.4

5.1

5.0

4.95

5.1

5.2

4.9

4.8

4.7

4.8

5.5

5.0

4.75

4.9

5.2

5.6

5.6

5.2

*5.5

5.36

5.65

5.6

6.5

6.1

5.6 

6.6

10.6

6.5

5.6

166.81

5.56

.

-

Calendar year 1955: Max 85. O Mln 3.4 Mean 9.50 Cfsm - In. -

Water year 1955-56: Max 85.0 Mln 4.7 Mean 11.08 Cfsm - In. -

Peak discharge (base. 24 cfs). Oct. 15 (12 p.m.) 129 cfs (1.411 ft); Oct. 30 (12 m.) 29. O 

0.724 ft): Nov. 4 (6 a.m.) 38. O cfs (0.818 ft); Nov. 11 (4:15 a.m.) about 24.6 cfsj Nov. 16 

1:15 p.m.) about 31.5 efs; Feb. 18 (11:30 a.m.) about 30.5 cfsj June 3 (l a.m.) 24 3 cfs 

0.671 ft); July 21 (1 p.m.) 45.2 cfs (0.884 ft); Sept. 28 (12:30 a.m.) about 26.5 cfs. *

reconstructed gage-height graph based on weather

Discharge measurement made on this day.

a No gage-height record; discharge estimated from 

records and records for nearby streams.

Note_.- -Backwater from debris Mar. 29, 3O, Apr. 3-6, 17-22, May 7, 8, June 21, 22, July 9-11, 

15-19, 24, Aug. 8, 9, 15, 16, Sept. 23, 28, 29. Backwater from aquatic vegetation Nov. 7 to 

Dec. 15, Dec. 17 to Jan. 26, Feb. 1O to Apr. 10, Apr. 14 to May 8, June 22 to July 11, Aug. 17 to 

Sept. 20, Sept. 23-30. Discharge per square mile and runoff In Inches not computed because much of 

the surface flow Is derived from ground-water storage that may originate from an area differing from 

that of the surface drainage.
30 STREAMS ON LONG ISLAND

Penataquit Creek at Bay Shore, N. Y.

Location. Lat 40°43'40", long 73°14'40", on right bank just upstream from Union Avenue 

Bridge in Bay Shore, Suffolk County, 4,500 ft upstream from mouth.

Drainage area. About 5 sq mi.

Records available. August 1945 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 6.64 ft above mean sea 

level, datum of 1929.

Average discharge. 11 years, 6.18 cfs.

Extremes. Maximum discharge during year, 112 cfs Oct. 16 (gage height, 2.31 ft, from 

floodmarks), from rating curve extended above 34 cfs by logarithmic plotting; minimum, 

4.0 cfs Sept. 23 (gage height, 0.362 ft, backwater from aquatic vegetation).

1945-56: Maximum discharge, that of Oct. 16, 1955; minimum, 1.49 cfs Nov. 10, 1949 

(gage height, 0.215 ft), result of temporary obstruction at culvert upstream.

Remarks.--Records good except those for periods of backwater from aquatic vegetation,

debris, or submergence, which are fair. This station is operated In connection with an 

inventory of water resources on Long Island. In addition to records of streamflow, 

records of ground-water levels are collected, some of which are published in watersupply papers. See page 603 for results of discharge measurements of Long Island streams 

at sites other than regular gaging stations.

Revisions.--WSP 1141: Drainage area.

Rating tables, water year 1955-56, except periods of backwater from aquatic vegetation, 

debris, or submergence (gage height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Sept. 28

0.36 

.4 

.5

3.97

5.10

8.46

0.7 

1.1 

1.5

17.4

41.6

66.8

Sept. 28-30

0.39 4.41

.45 6.18

.55 9.77

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

5.68

4.98

4.72

4.64

4.58

5.63

9.84

6.36

5.62

5.25

5.28

5.04

4.87

7.07

29.5

66.4

21.8

15.8

14,5

13.4

12.5

12.0

11.5

11.0

10.9

10.4

10.1

*10.1

9.78

15.0 

11.1

365.34

11.79

_

-

Nov.

9.97

9.54

9.72

*25.5

20.0

14.2

13.0

12.8

12.2

11.8

14.6

12.2

12.0

C12.8

11.8

15.8

13.2

12.2

12.2

12.2

11.8

12.0

11.8

11.4

11.4

11.4

11.2

11.2

11.0

10.6

381.53

12.72

-

Dec.

10.4

10.6

10.4

9.8

9.4

9.09

*8.90

8.68

8.64

8.46

8.32

8.21

8.10

8.03

8.10

.8

.7

.6

.5

.2

.1

.1

.1

.3

.3

.0

. 8

\J_

, 9

6.7

249.73

8.06

-

Jan.

6.6

6.4

6.8

6.5

6.5

6.6

6.3

6.2

c8.8

c7.8

c7.2

c7.3

c7.2

c6.8

c6.6

c6.5

c6.5

c6.5

e6.3

c6.3

C6.2

C6.1

c6,l

C6.0

C6.1

*c5.9

5.84

5.81

6.19

9.54

7.73

207.21

6.68

-

Feb.

6.87

10.1

8.56

8.35

8.06

9.23

*11.9

8,79

8.5

8.3

10.8

10.2

8.9

8.6

8.6

8.4

8.3

17.0

11.0

10.0

9.7

9.2

9.1

9.1

11.0

9.4

9.4

14.0

10.2

281.56

9.71

-

Mar.

9.7

9.8

9.6

9.3

9.1

10.2

10.

13.4

L0.4

9.8

9.6

9.4

9.5

14.2

TT72

10.6

10.4

10.0

10.2

10.0

10.4

11.0

11.6

12.0

10.8

11.0

11.0

*10.6

11.6

11.6

10.6

328.6

10.60

-

Apr.

10.0

9.9

9.9

*c9.8

9.5

9.3

12.2

19.0

13.4

12.0

11.4

11.0

10.8

10.6

11.8

12.2

10.8

10.4

10.0

10.0

9.9

9.7

9.8

9.7

9.5

10.0

9.5

9.2

8.9

8.6

318.8

10.63

-

May

8.5

8.8

9.3

8.7

8.6

c8.6

C12.0

*1J8T6

8.17

8.10

7.78

7.70

7.70

7.84

8.00

7.74

7.42

7.36

7.22

7.66

7.14

7.08

7.69

7.14

6.87

6.80

9725

7.79

7.08

6.94

6.84

246.41

7.95

-

June

9.28

9.94

15.1

9.66

8.79

8.42

8.14

7.88

7.85

7.67

7.46

7.22

7.04

6.94

6.73

6.36

6.29

6.13

6.13

6.06

6.48

6.29

5.97

6.50

5.93

5.77

8.14

*7.05

6.26

5.87

223.35

7.44

-

July

5.87

5.81

6.29

5.71

9.49

7.83

6.73

6.29

6.95

6.16

5.77

5.59

5.59

5.65

5.37

*5.43

5.31

5.13

5.07

5.10

15.3

9.28

7.04

6.56

6.20

5.g4

6.67

5.97

5.62

5.43

5 34

200.39

6.46

_

-

Aug.

5.31

5.19

5.04

4.96

5.01

5.51

5.28

4.93

4.78

4.78

4.75

4.72

c5.1

6.O8

4.93

*4.58

4.49

4.46

4.41

4.44

6.19

5.07

4.72

4.58

4.46

4.41

4.38

5.38

8.20

5.36

5.19

156.69

5.05

_

-

Sept.

5.04

4.90

4.69

4.55

4.81

4.81

4.84

4.52

4.32

4.30

4.27

4.76

4.49

4.35

4.67

5.08

4.85

4.74

4.35

*4.71

4.38

4.25

4.2

4.9

4.4

4.15

4.75

8.2

1775

4.5

141.53

4.72

-

Calendar year 1955: Max 66.4 Min 2.6 Mean 7.30 Cfsm - In. -

Water- year 1955-56: Max 66.4 Min 4.15 Mean 8.47 Cfsm - In. -

Peak discharge (base. 25.0 efs).--0et. 16 (about 2:30 a.m.) 112 efs (2.31 ft); Nov. 4 (5:5O p.m.) 

about 32 cfs; Feb. 18 (11 a.m.) 3O cfs (0.930 ft); June 3 (1:30 a.m.) 26.0 cfs (o.857 ft); July 21 

(1 p.m.) 28.7 cfs (0.901 ft).

* Discharge measurement made on this day.

0 Backwater from debris.

Note.--Backwater from aquatic vegetation Dec. 16 to Jan. 2C, Feb. 9 to May 8, Sept. 22-30; from 

submergence Nov. 4 to Dec. 5. Discharge per square mile and runoff in inches not computed because 

much of the surface flow is derived from ground-water storage that may originate from an area differing from bhat of the surface drainage.
STREAMS ON LONG ISLAND 31

Satnpawams Creek at Babylon, N. Y.

Location.--Lat 40°42'15", long 73°18'50", on left bank at upstream side of John Street 

Bridge in Babylon, Suffolk County, 180 ft downstream from Long Island Railroad and 

3,000 ft upstream from mouth.

Drainage area. About 23 sq mi.

Records available. October 1944 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 6.70 ft above mean sea 

level, datum of 1929.

Average discharge. 12 years, 9.53 cfs.

Extremes. Maximum discharge during year, 110 cfs Oct. 16 (gage height, 1.672 ft, from 

reconstructed gage-height graph); minimum, 6.6 cfs Sept. 14 (gage height, 0.367 ft, 

backwater from aquatic vegetation); minimum daily, 6.8 cfs Sept. 14.

1944-56: Maximum discharge, that of Oct. 16, 1955; minimum, 2.65 cfs Aug. 3, 1955 

(gage height, 0.232 ft, backwater from aquatic vegetation); minimum daily, 3.35 cfs 

Aug. 3, 1955.

Remarks. Records excellent except those for periods of doubtful gage-height record or 

backwater from aquatic vegetation, which are fair. Plow regulated slightly by pumping 

operations at railroad and occasionally by ponds above stations. Prior to November 

1950, slight diurnal fluctuation caused by power operations. This station is operated 

in connection with an inventory of water resources on Long Island. In addition to records of streamflow, records of ground-water levels are collected, some of which are 

published in water-supply papers. See page 603 for results of discharge measurements of 

Long Island streams at sites other than regular gaging stations.

Revisions. WSP 1141: Drainage area.

Rating tables, water year 1955-56, except periods of backwater from aquatic 

vegetation (gage height, In feet, and discharge, in cubic feet per second)

Oct. 16 to Sept. 30

0.39 

.5 

.7 

.9

7.52

12.0

21.6

34.9

6.72

11.7

28.8

1.1 

1.4

50.3

79.3

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Ttotal

Mean

Cfsm

In.

Oct.

10.2

8.7

7.7

779

7.7

8.7

14.4

11.0

10.8

9.2

*8.7

8.41

8.13

9.85

d29.5

d78.1

27.8

19.8

17.6

16.5

15.9

14.9

15.0

14.9

15.1

15.3

14.7

14.3

14. 0 

18 . 2

17.5

490.49

15.82

-

-

Nov.

15.0

13.8

13.5

*39T5

36.9

23.8

20.2

19.4

18.8

18.8

23.6

20.6

18.6

19.6

18.8

24.4

23.4

19.2

18.4

19.0

18.2

17.8

17.6

17.2

16.8

16.4

17.0

16.6

16.0 

15 2

594.1

19.80

-

-

Dec.

15.4

15.6

15.6

15.4

15.4

15.0

*14.6

14.5

14.0

14.2

13.8

13.6

13.4

13.2

13.2

13.2

12.8

12.8

12.6

12.2

12.0

12.2

12.2

12.0

12.2

12.0

11.6

11.4

11.4 

11.2

11.0

409.7

13.22

-

-

Jan.

11.0

11.0

11.2

11.0

11.0

10.8

10.8

10.6

12.8

13.0

12.2

11.8

11.6

10.8

10.6

10.6

10.8

10.4

10.2

10.4

10.2

10.2

*10.2

9.84

9.64

9.52

9.36

9.40

9.60

13.1

15. ,5

336.96

10.87

-

-

Feb.

11.4

14.2

14.4

13.0

12.9

12.8

*19.0

14.5

13.0

12.4

15.0

16.9

14.2

13.1

13.1

12.9

13.0

23.6

19.8

16.4

15.1

14.1

14.4

14.3

16.6

15.7

15.1

21.8

17.6

440.3

15.18

-

-

Mar.

15.4

15.5

16.3

15.5

14.9

16.1

16.6

20.0

17.9

16.1

14.9

14.5

15.1

20.5

19.8

17.7

17.5

16.6

17.5

16.8

16.9

17.8

*18.9

19.2

17.8

17.4

17.4

16.8

17.4 

18 . 5

17.1

530.4

17.11

-

-

Apr.

16.9

16.4

16.4

16.3

16.0

15.6

19.1

29.2

237T

*19.1

18.3

17.6

17.3

17.0

17.6

20.5

18.7

17.3

17.2

19.7

17.6

16.2

16.2

16.0

15.6

16.2

15.9

15.6

15.3 

15.0

528.9

17.63

-

-

May

20.2

20.4

16.9

15.8

16.2

16.6

21.1

*17.0

15.2

14.9

14.6

14.5

15.1

11.6

13.5

13.8

13.4

13.1

12.8

13.1

12.9

12.5

12.7

9.98

7.82

8.42

11.5

10.4

9.46 

10.6

10.6

426.68

13.76

-

-

June

13.1

*16.0

22.6

15.6

13.5

12.3

11.7

11.2

11.1

11.4

11.2

10.7

10.5

10.2

9.88

9.72

9.60

9.29

9.40

9.40

9.58

9.96

9.92

10.1

9.84

9.13

10.6

9.98

9.86 

9 " 33

336.69

11.22

-

-

July

9.13

9.02

9.98

9.60

14.5

13.6

11.5

10.8

11.0

*10.5

9.80

9.25

9.09

9.29

9.02

9.02

8.98

8.83

8.64

8.49

29.1

1977

13.7

11.5

10.7

10.0

11.7

10.2

9.76 

9. 25

8.87

344.52

11.11

-

-

Aug.

8.64

8.53

8.28

8.24

8.24

9.17

9.25

8.68

8.17

8.10

8.13

7.92

9.00

*9.44

8.35

7.85

7.5

7.4

lil

7.3

9.4

9.0

8.3

7.9

7.6

7.4

7.4

7.5

10.0

8.2

256.89

8.29

-

-

Sept.

7.9

7.9

7.6

7.6

7.5

7.4

8.8

7.8

7.4

7.1

7.0

*7.1

6.94

6,1

7.1

8.1

7.7

8.2

7.9

7.9

7.4

7.2

7.2

8.0

7.5

7.3

7.7

10.8

~877 

8,1

231.64

7.72

-

-

Calendar year 1955: Max 78.1 Mln 3.35 Mean 11.58 Cfsm - In. -

Water year 1955-66: Max 78.1 Mln 6.8 Mean 13.46 Cfsm - In. -

Peak discharge (base. 28.O cfs). Oct. 16 (about 4 a.m.) 110 cfs; Nov. 4 (6:30 p.m.) 58.0 cfs 

(1.186 ft); Nov. 16 (6:15 p.m.) 32 cfs (O.856 ft); Feb. 18 (3:3O p.m.) 34.9 cfs (0.894 ft); Apr. 8 

(11:15 a.m.) 31.2 cfs (0.838 ft); June 3 (l a.m.) 32.6 cfs (0.859 ft); July 21 (6:45 p.m.) 51.6 cfs 

(1.115 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

shape of normal peaks and records for nearby stations.

Note. Backwater from aquatic vegetation Oct. 1-11, Nov. 8 to Dec. 7, Dec. 11 to Jan. 23, Aug. 17 

to Sept. 12, Sept. 14-30. Discharge per square mile and runoff In inches not computed because much 

of the surface flow ia derived from ground-water storage that may originate from an area differing 

from that of the surface drainage.
32 STREAMS ON LONG ISLAND

Carlls River at Babylon, N. Y.

Location. Lat 40°42'30", long 73°19i50", on left bank in Babylon, Suffolk County, 130 ft 

downstream from outlet of Kennel Club Pond (known locally as Southards Pond), and 

Q.9 mile upstream from mouth.

Drainage area. About 35 sq mi.

Records available.--October 1944 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 10.63 ft above 

mean sea level, datum of 1929.

Average discharge. 12 years, 28.38 cfs.

Extremes. Maximum discharge during year, 118 cfs Oct. 16 (gage height, 1.596 ft); minimum, 16.9 cfs Aug. 13 (gage height, 0.594 ft); minimum daily, 20.0 cfs Aug. 13.

1944-56: Maximum discharge, 132 cfs Aug. 12, 1955 (gage height, 1.745 ft); minimum, 

0.80 cfs Dec. 3, 1946 (gage height, 0.082 ft, result of freezeup) minimum daily, 

13.2 cfs Sept. 29, 1951, Aug. 3, 1955.

Remarks.--Records excellent except those for periods of no gage-height record or backwater 

from debris, which are good. Occasional regulation by several ponds above station. 

This station is operated in connection with an inventory of water resources on Long 

Island. In addition to records of streamflow, records of ground-water levels are 

collected, some of which are published in water-supply papers. See p.603 for results 

of discharge measurements of Long Island streams at sites other than regular gaging 

stations.

Revisions. WSP 1141: Drainage area.

Rating tables, water year 1955-56, except periods of backwater from debris (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 17 to Sept. 30

1.2 

1.6

22.3

40.3

75.0

118

1.1 

1.4

19.5

30.7

98.0

Discharge, In cubic feet per second, water year October- 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

26.2

24.2

23.1

23.1

22.6

24.1

36. S

33.1

29.4

27.0

*27.3

26.2

24.0

27.2

58.9

113

~90.0

69.9

57.4

50.8

48.0

43.9

41.5

40.1

38.9

37.3

36.7

37.1

35.6

42.4

42.1

1,257.9

40.58

-

-

Nov.

35.9

33.8

33.4

*TT72

83.3

67.4

64.7

74.8

 55.5

50.4

60.5

52.1

47.8

50.0

46.9

55.9

60.6

49.5

47.8

47.8

45.6

44.9

43.7

43.0

41.7

40.9

40.0

39.7

38.5

37.6

1,507.9

50.26

_

-

Dec.

37.2

36.8

36.8

36.2

35.1

34.6

*34.5

34.2

34.1

33.7

33.0

32.7

32.4

32.0

32.0

31.3

30.9

30.8

30.7

29.6

30.1

30.8

30.7

30.2

29.7

29.2

28.6

28.1

28.1

27.7

27 3

989.1

31.91

_

-

Jan.

26.8

26.4

26.9

27.0

26.8

26.4

26.1

25.8

C31.5

o33

30.4

30.1

30.0

28.8

27.8

27.5

28.1

27.3

26.5

26.7

26.3

25.9

25.8

25.4

25.3

*25.2

25.0

24.9

25.2

31.9

3_4^9

855.7

27.60

_

-

Feb.

29.9

3470

40.4

34.6

35.3

34.3

51.2

41.9

38.1

37.0

40.9

49.0

41.4

38.4

37.7

36.8

36.4

51.9

56.3

4774

42.9

40.6

39.6

39.2

*44.0

41.9

39.1

52.0

46.5

1,198.7

41.33

_

-

Mar.

42.5

41.7

42.1

40.3

39.8

40.8

41.9

48.5

46.6

42.2

40.5

39.8

39.7

48.4

51.7

45.2

45.4

42.0

42.6

40.9

41.3

42.2

*44.7

48.1

45.5

44.4

45.5

44.8

45.4

48 . 3

44.9

1,357.7

43.80

_

-

Apr.

42.7

41.6

41.5

40.9

40.3

39.1

46.2

65.1

62.6

*53.9

49.9

47.6

46.1

45.2

45.6

51.7

47.8

44.6

42.6

42.2

41.0

40.4

39.9

39.0

38.5

39.6

38.7

37.7

36.9

36 . 4

1,325.3

44.18

-

May

35.4

35.4

37.9

35.8

34.6

34.5

44.4

*38.7

35.4

34.8

33.8

33.3

34.1

32.4

33.5

33.0

32.0

31.9

30.6

31.1

29.2

28.4

29.4

30.6

29.6

29.9

35.3

35.2

31.2

30.1

29.8

1,031.3

33.27

-

June

33.7

c40

55.8

fzTS

37.1

34.1

33.0

32.0

30.5

30.1

29.7

31.7

32.2

28.1

27.2

26.6

26.1

26.0

*25.7

25.5

26.8

27.3

25.9

26.9

25.6

24.3

277T

30.9

27.1

25.4

915.2

30.51

_

-

July

25.0

25.0

27.7

26.0

33.0

34.2

29.9

28.1

30.1

28.7

*26.8

25.7

25.2

25.8

24.7

24.6

24.6

23.6

23.1

23.0

42.0

43.4

3378

30.8

29.2

27.7

29.7

28.0

26.1

24 9

24 !l

874.5

28.21

_

-

Aug.

24.0

23.5

22.9

22.3

22.3

24.3

24.4

23.1

22.3

21.8

21.1

21.4

20.0

*24.9

23.4

21.8

23.3

23.4

20.8

20.8

27.1

24.3

22.5

21.7

21.1

20.6

20.6

20.5

25.4

22.1

21.7

699.4

22.56

_

-

Sept.

21.6

21.7

21.2

20.3

20.2

22.7

27.0

22.5

20.6

20.3

20.2

*20.3

20.5

20.1

2075

22.4

22.5

24.4

21.5

22.3

21.1

20.7

20.4

22.4

21.6

20.6

21.9

29.3

25.0

22 . 8

658.6

21.95

_

-

Calendar year 1955: Max 122 Mln 13.2 Mean 30.96 Cfsm - In. -

Water year 1955-56: Max 113 Mln 20.0 Mean 34.62 Cfsm - In. -

Peak discharge (base. 60 cfs). Oct. 16 (11 a.m.) 118 cfs (1.596 ft); Nov. 4 (7 p.m.) 92.4 cfs 

1.349 ft); Nov. 8 (2 a.m.) 82.8 cfs (l.265 ft); Nov. 11 (10 a.m.) 63.8 cfs (1.107 ft); Nov. 16 

12 p.m.) 70.8 cfs (1.165 ft); Feb. 18 (6 p.m.) 64.9 cfs (1.116 ft): Apr. 8 (7 p.m.) 70.9 cfs 

1.166 ft); June 3 (4 a.m.) 60.5 cfs (1.080 ft); July 21 (4:30 p.m.) 61.3 cfs (1.086 ft). 

* Discharge measurement made on this day. 

c Backwater from debris (no gage-height record Jan. 9).

Note. No gage-height record Dec. 3-7, Dec. 22 to Jan. 8; discharge estimated from reconstructed 

gage-height graph based on recorded range In stage, weather records, and records for nearby stations. 

Discharge per square mile and runoff in Inches not computed because much of the surface flow Is 

derived from ground-water storage that may originate from an area differing from that of the surface 

drainage.
STREAMS ON LONG ISLAND 33

Santapogue River at Lindenhurst, N. Y.

Location.--Lat 40°41'30", long 73°21'20", on left bank Just upstream from East Hoffman 

Avenue Bridge. 1 mile east of Long Island Railroad station in Lindenhurst, Suffolk 

County, and if miles upstream from mouth.

Drainage area. About 7 sq mi.

Records available. June 1947 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 9.71 ft above mean 

sea level, datum of 1929.

Average discharge. 9 years, 5.28 cfs.

Extremes. Maximum discharge during year, 23.2 cfs Nov. 4 (gage height, 0.761 ft); mini-

 mum, 1.23 cfs Sept. 26 (gage height, 0.220 ft).

1947-56: Maximum discharge, 42.2 cfs Sept. 11, 1954 (gage height, 0.911 ft); maximum gage height, 1.152 ft July 14, 1948; minimum discharge, 0.18 cfs July 31, Aug. 1, 

1954 (gage height, 0.103 ft).

Remarks. Records excellent except those for periods of backwater from aquatic vegetation 

or debris, which are good. This station is operated in connection with an inventory 

of water resources on Long Island. In addition to records of streamflow, records of 

ground-water levels are collected, some of which are published in water-supply papers. 

See page 603 for results of discharge measurements of Long Island streams at sites 

other than regular gaging stations.

Rating tables, water year 1955-56, except periods of backwater from aquatic vegetation 

or debris {gage height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 4 Nov. 5 to Sept. 30

0.28 

.4 

.55

2.24

5.20

10.8

19.0

0.23 

.3

.4

1.36

2.55

4.98

0.55 

.7

10.2

18.1

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

3.45

2.75

2.48

2.32

2.24

2.85

5.8

4.2 

3.65

3.2

*3.05

2.94

2.76

4.11

10.3

17.4

1378

10.4

9.26 

8.53

7.96

7.37

6.98

6.66

6.49

6.16

5.91

5.75

5.66

6 . 67

6.33

187.43

6.05

_

-

Nov.

5.64

5.26

5.11

*c!8.8

16.2

11.7

10.6

10.0 

9.32

8.83

11.6

9.41

8.56

9.37

8.52

11.4

11.3

9.58

9.03 

9.20

8.99

8.68

8.29

8.07

7.64

7.43

7.29

7.12

6.83

6 . 66

276.43

9.21

_

-

Dec.

6.44

6.38

6.35

6.28

6.19

5.95

5.83

5.74 

5.60

5.46

5.26

5.12

4.90

4.82

*4.90

4.74

4.63

4.55

4.49 

4.23

4.03

4.03

4.08

4.13

4.23

3.96

2.73

3.61

3.58

3.66

5, 56

150.46

4.85

_

-

Jan.

3.49

3.30

3.56

3.42

3.35

3.12

3.19

3.12 

4.59

4.41

4.03

4.06

3.96

3.68

3.56

3.54

3.54

3.28

3.16 

3.28

3.16

3.10

*3.07

2.96

2.91

2.85

2.83

2783

2.94

4. 98

cTTJS"

107.72

3.47

_

-

Feb.

3.66

5735

5.45

4.95

5.12

5.32

c8.3

6.19 

6.04

6.10

7.67

8.80

7.09

6.70

6.66

6.41

6.32

12.2

"5794 

8.37

C7.7

7.46

7.23

6.96

*8.56

7.68

7.09

11.0

8.6

208 . 92

7.20

_

-

Mar.

7.8

8.0

8.1

7.5

7.1

7.5

7.6

9.9 

8.6

7.8

7.5

7.4

7.4

~O" 10.2

8.6

8.6

8.1

8.3 

8.0

8.1

8.6

*9.4

10.1

9.41

9.32

9.3

8.9

9.2 

9 8

8.9

264.63

8.54

-

-

Apr.

8.4

8.2

8.1

*7.9

7.54

7.40

9.28

an10.5

10.0

9.54

9.2

8.9

9.2

clO.4

9.5

8.5

7.9 

7.7

7.6

7.3

7.1

7.1

6.9

7.3

7.0

6.7

6.5

6.3

254.96

8.50

-

May

6.1

6.2

c6.8

C6.5

6.0

5.8

8.4 *675~ 

5.86

5.83

5.57

5.51

5.4

5.2

5.2

5.3

5.0

5.0

4.85 

5.0

4.65

4.5

4.85

4.7

4.35

4.2

578

5.6

4.45

4.3

4.2

167.62

5.41

-

June

5.2

*6.9

10.6

~6799

6.16

5.80

5.5

5.3 

5.2

5.0

4.85

4.5

4.25

4.0

3.8

3.6

3.5

3.4

3.3 

3.2

3.5

3.35

3.05

3.5

3.05

2.85

C 4.2

c4.6

c3.3

C2.85

135.30

4.51

-

July

c2.85

2.7

3.6

2.55

5.4

5.2

4.0

3.65 

4.25

*3.5

3.10

2.89

2.80

2.89

2.59

2.68

2.53

2.31

2.18 

2724

9.2

676

4.45

4.0

3.65

3.25

4.1

3.4

3.05

2.8

2.6

111.01

3.58

_

-

Aug.

2.50

2.36

2.26

2.08

2.26

3.1

2.95

2.32 

2.06

2.02

1.92

1.96

2.46

*3.4

2.20

2.02

1.86

1.64

1.62 

1.74

3.05

2.30

1.98

1.90

1.74

1.62

1.58 376~

H2.50

71.90

2.32

_

-

Sept.

2.36

2.32

2.06

1.94

1.84

2.36

3.0

2.12 

1.86

1.78

1.74

1.76

1.72

1.68

1.82

2.08

1.82

1.74

1.54 

*1.70

1.49

1.49

1.44

1.89

1.50

1.40 TTeT

3.56

27oT

1.90

57.64

1.92

_

-

Calendar year 1955: Max 30.6 Mln 0.33 Mean 4.94 Cfsm - In. -

Water year 1955-55: Max 18.8 Min 1.40 Mean 5.45 Cfsm - In. -

Peak discharge (base, 18 efs). Oct. 16 (3 a.m.) 19.7 cfs (0.712.ft)j Nov. 4 {4 p.m.) 23.2 cfs 

{0.761 ft).

* Discharge measurement made on this day.

c Backwater from debris.

Note. Backwater from aquatic vegetation Oct. 1-11, Feb. 29 to Mar. 23, Mar. 27 to Apr. 4, Apr. 13 

to May 8, May 13 to June 2, June 7 to July 10, July 19 to Sept. 20 (fragmentary gage-height record 

July 9, 10). Discharge per square mile and runoff in inches not computed because much of the surface 

flow is derived from ground-water storage that may originate from an area differing from that of the 

surface drainage.
34 STREAMS ON LONG ISLAND

Massapequa Creek at Massapequa, M. Y.

Location. Lat 40°41'20", long 73°27'20", on left bank 350 ft west of Garfleld Street at 

Lake Shore Drive, Massapequa, Nassau County, 3,000 ft upstream from Clark Avenue 

Bridge and head of Massapequa Pond of Brooklyn water-supply system, and a quarter of 

a mile north of Massapequa Park.

Drainage area. About 38 sq ml.

Records available. June to October- 1903 (In Professional Paper 44), December 1936 to

September 1956. Published as Massatayun Creek at Massapequa December 193S to September 

1941.

Gage. Water-stage recorder and concrete control. Datum of gage Is 19.31 ft above mean 

sea level, adjustment of 1912. Prior to October 1903, staff gage at different datum.

Average d1scharge.--19 years (1937-56), 12.16 cfs.

Extremes. Maximum discharge during year, 73.5 cfs Nov. 4 (gage height, 1.222 ft); minimum, 

5.89 cfs Sept. 29 (gage height, 0.463 ft).

1903, 1936-56: Maximum discharge, 180 cfs Aug. 12, 1955 (gage height, 1.833 ft), 

Includes 9 cfs flow bypassing gage; minimum, 2.66 cfs Aug. 1, 1954 (gage height, 

0.322 ft).

Remarks.--Records good except those for periods of no gage-height record or backwater from 

aquatic vegetation or debris, which are fair. This station is operated in connection 

with an inventory of water resources on Long Island. In addition to records of streamflow, records of ground-water levels are collected, some of which are published in 

water-supply papers. See page 603 for results of discharge measurements of Long Island 

streams at sites other than regular gaging stations.

Revisions.--WSP 1141: Drainage area.

Rating tables, water year 1955-56, except periods of backwater from aquatic vegetation 

or debris (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 8 Apr. 9 to Sept. 30

0.57

.7

.9 

1.1

10.9

18.7

35.6

57.7

0.47 

.5 

.7 

.9

6.12

7.28

18.7

35.6

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2L

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

14.9

13.0

12.2

LI. 7

11.4

13.2

25.9

17.4

15.1

13.8

12.9

12.5

12.2

19.0

35.6

45.3

29.9

23.7

21.7

20.7

19.6

18.7

18.3

17.7

17.1

16.6

16.4

15.9

15.3

20.2

*18 . 1

576.0

18.58

_

-

Nov.

16.1

14.9

14.8

55.9

45.5

29.3

25.4

24.1

23.0

22.4

30.3

24.0

22.2

25.7

22.7

34.7

30.4

25.5

24.2

24.0

*23.3

22.5

21.7

21.0

20.2

19.9

19.5

19.3

L8.7

18.0

739.2

24.64

_

-

Dec.

18.1

18.0

18.0

17.8

*17.6

17.3

16.9

16.6

16.6

16.4

16.3

16.1

15.8

15.6

15.5

15.2

15.1

14.8

14.8

14.2

13.8

13.8

13.8

13.8

14.0

14.0

13.6

1376

13.6

13.6

13. 6

477.9

15.42

_

-

Jan.

13.4

13.2

13.2

13.0

12.8

12.4

12.2

12.2

15.2

14.8

13.8

13.6

13.6

13.2

13.2

13.0

13.0

12.6

12.4

12.2

12.0

11.8

11.8

*11.6

11.6

11.6

11.6

11.4

11.3

-, Q c.

Ib. O

15.0

401.2

12.94

_

-

Feb.

13.2

20.1

16.9

16.2

16.1

17.6

29.9

19.1

17.3

16.2

20.3

21.1

17.9

16.9

16.6

16.4

16.1

35.3

25.0

21.2

19.7

18.4

17.6

17.2

*21.5

18.7

17.9

28.8

22.4

571.6

19.71

-

-

Mar.

20.4

20.0

19.6

18.6

17.8

19.7

19.4

26.6

*21.9

20.4

19.5

19.3

19.0

c29.5

c25.5

22.6

22.0

20.8

20.4

20.4

21.7

24.0

25.6

26.5

24.1

23.3

23.2

23.2

23.7

24.8

22 9

686.4

22.14

_

-

Apr.

21.8

21.3

20.8

c20.6

c20.8

20.2

25.8

43.9

3176

27.3

26.0

25.1

24.4

23.3

24.0

26.3

23.6

22.4

21.5

21.0

20.7

20.1

19.6

*19.2

18.8

19.9

19.4

18.7

18.3

18 . 0

684.4

22.81

-

May

17.6

17.3

18.5

17.5

17.1

17.0

25.4

19.0

17.8

17.2

16.7

16.2

15.9

15.5

15.2

14.9

14.8

14.5

14.5

15.2

14.5

14.3

15.2

14.5

13.6

*13.2

TsTT

16.0

14.4

13 9 

13^5

499.0

16.10

-

June

14.9

18.7

32.7

19.4

17.3

16.0

14.7

13.8

13.2

13.3

13.2

*12.1

11.2

10.9

10.4

10.3

10.1

9.66

9.30

9.19

9.82

10.4

9.92

11.0

9.50

8.69

16.8

15.2

12.4

11.5

395.58

13.19

-

July

10.7

9.82

16.8

10.7

21.0

16.1

14.2

13.0

14.0

*11.9

11.0

10.3

10.2

12.4

9.92

9.82

9.71

9.24

8.99

8.74

35.1

2072

14.3

12.7

12.0

11.5

13.4

11.7

10.9

10.1

9.40

399.84

12.90

_

-

Aug.

8.79

8.64

8.50

8.35

8.26

12.6

11.2

*9.45

8.74

8.50

8.26

7.98

8.0

10.6

7.9

7.5

7.4

7.2

7.1

7.1

11.6

9.4

8.6

8.1

7.5

7.2

7.0

879

15.2 -972

8.8

273.57

8.82

_

-

Sept.

8.7

8.7

8.2

7.4

7.3

8.4

9.7

7.9

7.2

6.8

6.7

6.7

6.7

6.7

7.5

9.1

9.9

10.8

*8.7

9.56

9.19

8.45

7.84

11.4

8.79

8.64

9.03

14.9

^737

6.34

253.61

8.45

_

-

Calendar year 1955: Max ill Mln 3.36 Mean 14.80 Cfsm - In. -

Water year 1955-56: Max 55,9 Mln 6.34 Mean 16.28 Cfsm - In. -

Peak discharge (base. 59 cfs). Oct. 16 (2 a.m.) 65.0 cfs (1.157 ft); Nov. 4 (3:30 p.m.) 73.5 cfs 

(1.222 ft); Nov. 16 (8:45 p.m.) 51.2 cfs (1.O47 ft); Feb. 18 (6 p.m.) 53.5 cfs (1.O66 ft); Mar. 14 

(8 p.m.) about 39.5 cfs; Apr. 8 (7 p.m.) 48.1 cfs (1.02O ft); June 3 (3 a.m.) 43.7 cfs (0.981 ft); 

July 21 (6 p.m.) 62.3 cfs (1-136 ft).

* Discharge measurement made on this day.

c Backwater from debris.

Note. Backwater from aquatic vegetation Dec. 18 to Jan. 24, Aug. 13 to Sept. L9 (no gage-height 

record Aug. 13-21, Sept. 12-18). No gage-height record June 30 to July 15, July 30 to Aug. 7, 

Aug. 9-12, Sept. 22-27; discharge estimated on basis of recorded range In stage, weather records, 

and records for nearby streams. Discharge per square mile and runoff In Inches not computed 

because much of the surface flow Is derived from ground-water storage that may originate from an 

area differing from that of the surface drainage.
STREAMS ON LONG ISLAND 35

Wantagh Stream at Wantagh, N. Y.

Location. Lat 40°40'50", long 73°30'45", on right bank on Wantagh Partcway at northwest 

boundary of village of Wantagh, Nassau County.

Drainage area.--About 17 sq mi.

Records available.--June to October 1883, July to October 1903 (fragmentary, published in 

Professional Paper 44), September 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 16.88 ft above mean 

sea level, adjustment of 1912. June to October 1883, determinations of flow by 

various methods at different site and datum. July to October 1903, staff gages on two 

channels near same site at different datum.

Average discharge. 19 years (1937-56), 10.04 cfs.

Extremes.--Maximum daily discharge during year, 54.8 cfs July 21; minimum daily, 8.45 cfs 

Aug. 20.

1903, 1937-56: Maximum daily discharge, 139 cfs Jan. 4, 1944; maximum discharge 

prior to beginning of diversion in November 1955, 340 cfs June 1, 1952 (adjusted to include flow bypassing station); maximum gage height, 2.566 ft June 1, 1952; minimum 

daily discharge, 1.84 cfs Sept. 12, 1943.

Remarks.--Records fair. Prior to Nov. 4, 1955, flow at all stages regulated intermittently at outlet of Wantagh Reservoir, 1 mile above station, and prior to November 

1953 by Browning Pond, half a mile above station. Subsequent to Nov. 3, 1955, a 

substantial portion of the west branch flow is diverted and reenters the main channel 

below the gaging station. Discharge figures given are those of combined flows" in main 

and diversion channels. This station is operated in connection with an inventory of 

water resources on Long Island. In addition to records of streamflow, records of 

ground-water levels are collected, some of which are published in water-supply papers. 

See page 603for results of discharge measurements of Long Island streams at sites 

other than regular gaging stations.

Discharge, in cubic feet per second, water year October 1955 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

14.0

12.7

12.9

12.5

12.5

14.7

23.8

16.3

14.0

*14.1

13.6

13.3

14.2

24.8

52.5

31.4

23.8

20.8

20.3

19.8

19.1

17.1

17.0

18.6

17.9

17.4

17.4

16.9

16.4

20.6

17.0

577.4

18.63

_

-

Nov.

16.4

16.2

16. 0

48.4

33.9

26.6

26.6

25.5

24.3

23.8

30.7

24.1

22.9

*27.7

21.9

*37.9

24.1

22.3

23.5

23.3

*22.7

22.5

22.9

22.7

22.2

21.9

21.8

21.4

19.8

18.0

732.0

24.40

_

-

Dec.

17.8

*17.9

17.8

17.8

*17.8

17.6

17.4

17.8

18.8

18.5

18.0

17.9

17.5

17.5

*17.4

16.9

16.9

16.8

16.4

16.1

15.8

16.2

15.8

16.2

16.4

15.8

15.7

15.2

13.6 

13791

14.1

Sig^S,

16.75

-

-

Jan.

14.0

13.4

14.9

13.7

13.5

*13.2

13.2

13.0

16.9

14.5

13.7

14.4

14.2

13.4

13.2

13.4

13.6

12.7

12.7

12.4

12.2

12.2

12.1

 11.9

11.9

11.7

*11.6

11.4

11. E 

*18 .2

13.4

412.5

13.31

-

-

Feb.

12.6

21.9

*15.7

16.6

15.4

21.4

*28.3

18.2

17,4

17.2

25.0

19.1

17.4

16.9

17.1

16.6

17.1

41.1

21.2

20.2

19.1

18.6

18.0

18.0

22.4

18.0

18.6

29.4

19.6

578.1

19.93

-

-

Mar.

18.6

19.4

18.3

18.0

17,8

22.0

19.4

29.9

*20.6

19.4

20.5

20.1

20.0

31.7

22.2

21.3

20.6

2O. O

20.1

20.3

21.6

22.7

23.7

24.4

22.1

22.2

*22.4

22.4

25.3 23 0

21 '.2

671.2

21.65

-

-

Apr.

20.6

20.2

19.9

19.7

18.3

18.8

*25.6

40.4

24.4

22.9

22.2

21.9

21.5

21.3

23.2

24.6

*21.8

22.0

21.0

21.1

19.0

19.2

19.6

19.1

19.2

21.2

19.2

*18.2

17.9 

18.6

642.6

21.42

_

-

May

17.6

18.6

18.8

17.6

16.2

17.0

25.1

ITT

17.1

16.6

16.8

16.2

16.2

16.2

14.9

16.1

15.5

15.4

*15.4

17.3

14.9

14.5

16.4

14.7

14.5

*14.0

19.3

15.1

14.0 

14.1

14.0

507.2

16.36

_

-

June

19.1

20.1

27.8

17.2

16.1

15.4

14.7

14.0

13.7

13.9

15.9

*14.7

13.7

13.5

13.2

12.0

11.7

11.6

12.0

11.6

13.2

12.7

11.8

14.7

11.6

11.2

*24.2

14.5

12.8 

12.1

440.7

14.69

_

-

July

11.8

11.4

19.2

11.7

24.0

14.9

14.2

13.6

18.6

13.4

12.6

12.3

15.8

15.1

12.3

*12.6

12.3

11.8

11.5

11.4

54.8

17TT

14.4

13.6

13.2

12.8

14.7

13.1

12.3 

11.7

11 . 6

 469.8

15.15

_

-

1956

Aug.

11.4

11.2

10.8

10.4

10.2

13.9

13.2

*11.3

11.0

11.2

10.7

10.2

11.4

*11.3

10.6

10.2

C9.98

9.66

9.06

8.45

14.4

10.5

10.1

11.1

9.51

9.22

9.05

15.5

14.3 

*10.7 10 . 8

341.33

11.01

_

-

Sept.

10.8

11.2

10.2

10.2

10.1

12.4

10.8

10.0

9.64

9.65

9.66

9.90

9.81

9.77

11.0

10.8

14.4

10.5

*9.77

9.94

9.09

9.27

9.39

15.7

ToT2~

9.40

13.0

*13.4

10.1 

9.69

319.78

10.66

_

-

Calendar year 1955 : Max 115 Min 4.9 Mean 15.01 Cfsm - In.

Water year 1955-56 : Max 54.8 Min 8.45 Mean 16.97 Cfsm - In.

* Discharge measurement made on main channel or diversion on this day.

Note. Discharge per square mile and runoff in inches not computed because much of the surface 

flow is derived from ground-water storage that may originate from an area differing from that of the 

surface drainage.
36 STREAMS ON LONG ISLAND

East Meadow Brook at Freeport, N. Y.

Location. Lat 40°39'55", long 73°34'10", on left bank in Freeport, Nassau County, 50 ft 

upstream from bridge on Hempstead-Babylon turnpike and 300 ft west of Meadowbrook 

Parkway.

Drainage area. About 31 sq mi.

Records available. October 1851 to December 1852, June to October 1883, September and 

October 1885, June to October 1903, January 1937 to September 1956. Prior to 1903, 

records fragmentary, published in Professional Paper 44.

Gage.--Water-stage recorder and concrete control. Datum of gage is 10.92 ft above mean 

sea level, adjustment of 1912. Prior to October 1885, determinations of flow by various methods at different site and datum. June to October 1903, weir in swamp at head 

of Brooklyn waterworks supply pond.

Average discharge . 19 years (1937-56), 17.52 cfs.

Extremes. Maximum discharge during year, 185 cfs Oct. 15 (gage height, 3.290 ft, backwater from Freeport Pond); minimum, 10.6 cfs Sept. 15 (gage height, 0.385 ft, backwater 

from aquatic vegetation).

1903, 1937-56: Maximum discharge, 355 cfs Aug. 13, 1955 (gage height, 3.658 ft, 

backwater from Freeport Pond); minimum, 5.04 cfs Feb. 21, 1942 (ice Jam); minimum gage 

height, 0.281 ft July 3, 1955.

An average discharge of 6.54 cfs was recorded for the period Sept. 19 to Oct. 2, 

1885.

Remarks. Records excellent except those for periods of no gage-height record or backwater 

from aquatic vegetation, debris, or bathers, which are good, and those for periods of 

backwater from Freeport Pond, which are fair. This station is operated in connection 

with an inventory of water resources on Long Island. In addition to records of streamflow, records of ground-water levels are collected, some of which are published in 

water-supply papers. See page 603 for results of discharge measurements of Long Island 

streams at sites other than regular gaging stations.

Rating tables, water year 1955-56, except periods of* backwater from aquatic 

vegetation, bathers, debris, or Freeport Pond (gage height, In feet, and 

discharge, In cubic feet per second)

Oct. 1 to Apr. 8 Apr. 9 to Sept. 30

0.4

.6

1.0

12.0

30.4

87.5

0.39

.5

.9

11.0

19.2

56.1

71.3

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

20.2

16.4

15.5

15.2

14.8

21.4

60

24.3

19.7

*17.4

16.8

16.4

16.0

42.4

68

76

40

29.5

28

25.0

24.0

23.2

23.4

22.4

22.2

21.6

21.2

21.0

20.8 

40

28

850.8

27.45

-

-

Nov.

22.6

20.6

20.2

72

52

30.1

*27.1

26.7

25.6

26.0

40-

26.2

24.3

34

27.8

52

33.1

28.6

27.8

27.8

25.8

25.2

24.8

24.4

23.9

23.7

23.4

23.3

23.8 

23.2

886.0

29.53

-

-

Dec.

22.6

22.2

22.2

21.9

21.9

21.6

21.5

21.4

21.2

21.0

20.2

20.1

20.0

19.8

19.9

19.7

19.3

19.0

*19.2

18.9

18.7

18.8

18.9

18.8

18.7

18.4

17.9

17.3

1875 

18 . 3

17.3

615.2

19.85

-

-

Jan.

17.3

17.0

18.6

17.3

17.0

17.3

16.6

17.6

21.5

19.8

18.0

18.3

18.8

17.6

17.5

17.3

17.4

16.8

16.5

16.1

15.6

15.6

15.6

*15.2

15.1

15.0

14.9

14.8

15.0 

29

22'. 7

542.8

17.51

-

-

Feb.

17.8 34~~

23.2

20.5

20.8

23.5

*49

22.2

19.8

18.4

27

29

20.4

19.0

18.6

18.4

20.0

60

29.2

23.5

21.8

20.6

20.2

20.1

29.6

22.0

20.8

49

24.6

743.0

25.62

-

-

Mar.

22.1

21.8

22.1

21.3

20.4

27.8

24.3

47

26.5

23.1

22.5

21.8

21.9

45

27.8

25.2

24.8

24.0

24.2

23.4

26.4

*27.6

29.0

29.5

26.1

25.5

25.7

25.1

27.8 

29.0

25.1

813.8

26.25

-

-

Apr.

23.2

25.0

24.5

24.1

23.6

23.0

*37

66

41

30.5

27.5

27.1

26.0

26.0

29.9

34.7

26.9

25.7

24.9

25.1

24.6

24.2

24.2

23.7

23.3

25.9

23.7

23.0

22.6 

23 .8

830.7

27.69

-

-

May

21.9

22.0

25.5

22.2

21.2

21.1

45

25.8

*21.9

21.8

21.0

20.7

20.6

19.9

20.2

20.7

19.1

19.0

18.5

23.0

18.9

18.5

23.2

20.1

18.2

18.0

29

19.9

17.4 

17.1

17.0

666.4

21.50

-

-

June

20.4

27

52

23.6

21.8

20.5

19.4

18.9

18.3

18.4

18.5

18. 0

17.5

16.8

16.7

016.0

15.6

15.2

14.9

a!4.9

al5.7

a!5.4

al4.9

a23.5

16.2

15.1

30

*19.2

C16.4 

15.5

586.3

19.54

-

-

July

15.5

15.1

25

15.8

38

20.7

17.7

16.7

33

20.8

C16.8

15.5

17.0

23.5

16.1

15.9

15.5

14.5

 14.2

14.1

60

26.0

20.0

17.8

17.0

016.4

20.7

16.8

15.8

-\ C. n

J.3 , £

14.9

622.0

20.06

-

-

Aug.

15.2

14.9

14.3

13.8

13.8

25

20.8

*c!5.4

14.5

14.3

13.8

C12.8

15.0

19.6

14.2

13.6

13.2

12.6

12.4

12.8

25.5

16.2

15.2

14.0

13.2

12.2

12.4

21.5

40 

17 .8

16.8

506.8

16.35

-

-

Sept.

14.6

13.4

C12.4

12.2

14.4

15.8

17.6

12.6

11.4

11.2

11.2

11.2

11.2

11.0

11.4

14.0

16.2

16.8

11.6

12.2

11.4

11.0

11.0

20.0

12.2

»11.2

12.5

21.1

12.1 

11.3

396.2

13.21

-

-

Calendar year 1955; Max 270 Mln 6.2 Mean 21.82 Cfsm - In. -

Water year 1955-56: Max 76 Mln 11. 0 Mean 22.02 Cfsm - In. -

Peak discharge (base, loo cfs). --Oct. 7 (6:45 a.m.) about 136 cfs; Oct. 15 (1O;30 p.m.) about

185 cfs; Feb. 18 (2:3O p.m.) about 1O4 cfs; June 3 (4:3O p.m.) about 1O2 cfs; July 21 (3 p.m.) about 

140 cfs.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on weather 

records and records for other streams In Nassau County.

c Backwater from bathers.

Note. Backwater from aquatic vegetation Aug. 14 to Sept. 26 (no gage-height record Aug. 16-20). 

Backwater from debris Oct. 10-13, 18-21, Oct. 23 to Nov. 2, Feb. 7-18, Apr. 30, May 3, June 28. 

Backwater from Preeport Pond Oct. 7, 15-17, 3O, Nov. 4, 5, 11, 14, 16, Jan. 30, Feb. 2, 6, 7, 11, 

12, 18, 28, Mar. 8, 14, Apr. 7-9, May 7, 27, June 2, 3, 27, July 3, 5, 9, 21, Aug. 6, 28, 29. Discharge per square mile and runoff In Inches not computed because much of the surface flow Is derived 

from ground-water storage that may originate from an area differing from that of the surf ace drainage.
STREAMS ON LONG ISLAND 

Pines Brook at Malverne, N. Y.

37

Location.--Lat 40°40'00", long 73°39'30", on right bank 100 ft downstream from Lakeview 

Avenue Bridge and south line of Malverne, Nassau County.

Drainage area. About 10 sq mi.

Records available.--1851-52, 1856-57, 1885, and 1894 (fragmentary, in Professional 

Paper 44), December 1936 to September 1956.

Gage. Water-stage recorder and concrete control with V-notch weir. Datum of gage is 

9.42 ft above mean sea level, adjustment of 1912. Prior to 1894, determinations of 

flow by various methods, at different sites and daturns.

Average discharge.--19 years (1937-56), 5.77 cfs.

Extremes. Maximum discharge during year, 118 cfs July 21 (gage height, 2.419 ft); minimum, 

0722 cfs Mar. 28 (gage height, 0.292 ft); minimum daily, 2.32 cfs Sept. 23.

1936-56: Maximum discharge, 191 cfs Aug. 12, 1955 (gage height, 2.755 ft); minimum, 

0.13 cfs (revised) Feb. 15, 1940 (gage height, 0.196 ft); minimum daily, 0.18 cfs 

Oct. 23, 1942.

Revisions.--The figures of minimum discharge for the water years 1937 and 1940 have 

been revised to 0.31 cfs July 8, 1937 (gage height, 0.36 ft), and 0.13 cfs Feb. 15, 

1940 (gage height, 0.196 ft), superseding those published in WSP 821 and 891.

Remarks. Records good except those for periods of doubtful or no gage-height record or 

backwater from debris, which are fair. Prior to Feb. 20, 1956, flow occasionally regulated by Pines Pond. Indeterminate diversion from Pines Pond for emergency municipal 

water supply for city of New York August 1953 to September 1954. This station is operated in connection with an inventory of water resources on Long Island. In addition to 

records of streamflow, records of ground-water levels are collected, some of which are 

published in water-supply papers. See page 603 for results of discharge measurements of 

Long Island streams at sites other than regular gaging stations.

Revisions. Revised figures of discharge, in cubic feet per second, for low-water periods 

in the water years 1937 and 1940, superseding those published in WSP 821 and 891, are 

given herewith:

Date

1937

July 9

13

Sept. 20

21

22

1939

Oct. 4

5

6

Nov. 7

Discharge

0.38

.41

.42

.45

.48

.36

.45

.92

.41

Date

1939-Con.

Nov. 8

1940

Jan. 16

Mar. 7

8

9

Apr. 2

10

11

23

Discharge

0.44

.28

.32

.34

.70

.22

.28

.32

.95

Date

1940-Con.

May 4

5

21

June 27

Aug. 30

31

Sept. 1

2

3

Discharge

0.30

.30

.49

.27

.26

.26

.30

.32

.35

Month

July 1937 ..................................

September ..................................

Calendar year 1937 .......................

Calendar year 1939 .......................

March. .....................................

April ......................................

May........................................

Calendar year 1940 .......................

Cfs -days

2,238.54

2,690.07

1,723.38

Maximum

14.4

20.2

13 9

14.0

Minimum

.38

.36

.22

Mean

6.13

7.37

4.71

505690 O - 59 - 4
38 STREAMS ON LONG ISLAND

Pines Brook at Malverne, N. Y.--Continued

Rating tables, water year 1955-56, except periods of backwater from debris (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 18 Feb. 18 to June 24 June 24 to Sept. 30

0.97

1.1

1.3

1.5

1.6

2.63

4.45

8.67

17.7

24.0

1.08 

1.3

1.5

1.6

4.22

8.93

17.7

24.0

0.95 

1.1

1.3 

1.5 

1.7

2.26

4.20

8.46

17.7

31.5

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

5.42

5.22

*5.02

4.95 

4.83

4.84

6.78

4.86

3.95

3.32

3.22

3.10

a3.18

all. 3

al8.4

a20.0

a8. 85

5.24

4.70

4.4

4.39

4.12

4.10

4.24

3.89

3.78

3.72

3.74

3.76 

11.4

5.57

184.29

5.94

-

-

Nov.

4.35

4.12

*4.07

19^4 

13.5

6.04

5.4

5.5

5.13

*5.21

9.86

5.33

4.90

9.1

5.71

17.5

6.82

5.63

6.33

6.45

5.52

5.26

5.27

5.00

5.04

5.13

5.24

5.27

4.92 

4 . 88

201.88

6.75

-

-

Dec.

4.78

4.66

4.68

4.86 

5.26

5.02

4.92

5.00

4.66

4.31

4.16

4.15

4.02

*3.94

4.00

3.95

3.86

3.84

3.83

3.70

3.47

3.51

3.84

4.00

4.13

3.96

3.72

3.74

3.74

3.82

3.71

129.24

4.17

-

-

Jan.

a3.5

a3.2

a3.6

a3.3 

a3.2

a3.2

3.2

3.71

6.18

4.91

4.08

4.55

4.1

3.37

3.29

3.10

3.38

3.62

3.36

3.32

3.5

3.45

*3.0

2.82

2.83

2.79

2.75

2.73

2.94

8 . 62 

7784

114.44

3.69

-

-

Feb.

3.10

1TTT~

5.23

5.32 

6.01

6.75

17.7

6.07

5.91

5.81

5.89

6.2

6.3

6.36

6.22

5.93

5.81

19.8

"T731

8.57

9.50

7.72

7.78

11.0

9.67

7.23

*7.57

16.6

7.58

235.04

8.10

-

-

Mar.

7.06

7.08

6.88

6.66 

7.04

10.4

8.47

20.5

9.22

7.22

a7.02

7.21

7.6

18.6

8.16

8.02

*8.30

7.60

7.81

8.23

9.35

9.40

9.08

8.48

7.69

6.24

6.62

5.69

9.28

10 . 8

8.34

270.05

8.71

-

-

Apr.

8.16

8.67

8.96

9.14 

8.57

9.00

16.9

23.3

9.00

7.79

7.45

7.15

7.20

7.27

a8. 15

a9.88

7.07

6.84

6.77

6.82

*6.71

6.55

6.73

7.04

6.51

7.98

6.84

6.64

6.47 

7 . 38

252.94

8.43

-

~

May

6.28

6.58

7.44

6.47

6.00

6.10

15.2

6.44

6.12

6.52

6.33

6.24

6.07

6.02

6.19

6.66

6.16

6.40

6.18

7.9

6.2

*5.83

7.00

6.08

5.90

5.72

10.4

6.53

5.48 

5.68

207.62

6.70

-

"

June

6.54

9.14

15.5

6.40 

5.78

5.5

5.3

5.28

5.22

5.09

4.92

5.03

4.9

4.85

4.55

4.62

4.5

4.27

4.25

4.24

4.94

4.7

4.4

14.1

4.30

*3.95

9.61

4.80

3.95 

3 . 80

174.43

5.81

-

~

July

3.86

3.74

7.76

3.92 

9.68

4.82

4.26

4.14

10.6

4.94

4.10

*3.89

5.50

6.77

4.56

4.16

4.18

3.95

3.74

3.74

28.4

5.84

5.19

4.75

4.36

4.12

5.46

4.07

3.71

3 ' 57

175.34

5.66

-

-

Aug.

3.67

3.31

3.43

3.52 

3.59

5.67

4.83

*3.59

3.31

3.24

3.16

3.14

5.26

5.00

3.24

4.66

7.42

4.94

2.86

2.85

7.07

3.52

3.20

3.90

3.90

2.91

2.98

7.32

16.9 

3.86

3.15

139.40

4.50

-

"

Sept.

3.10

2.94

2.78

4.30 

3.94

5.9

5.1

2.8

2.75

4.0

3.9

3.95

2.75

2.65

3.5

3.5

4.05

3.85

2.65

2.85

*2.6

2.42

2.32

7712

6.35

5.48

6.88

10.3

6.43 

4 43

126.19

4.21

-

'

Calendar year 1955: Max 108 Mln 0.20 Mean 4.75 Cfsm - In.

Water year 1955-56: Max 28.4 Mln 2.32 Mean 6.04 Cfsm - In.

Peak discharge (base. 48 cfs).--Oct. 15 (time unknown) 52.1 cfs (1.933 ft); Feb. 18 (1:30 p.m.) 

48.4 cfs (1.896 ft); July 21 (10:15 a.m.) 118 efs (2.419 ft); Aug. 29 (1:45 a.m.) about 52 cfs.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage, weather records, 

and records for nearby streams.

Note. Backwater from debris Oct. 20, Nov. 1, 8, 14, Jan. 12, 13, 21-23, Feb. 12, 13, Mar. 13, 

May 20, 21, June 6, 7, 13-15, 17, 22, 23, July 9, Sept. 6-21 (doubtful gage-height record Sept. 7-9, 

13-15, 17, 19-21). Doubtful gage-height record Oct. 7, Jan. 25-27, July 15, 29, Aug. 2, 6, 7, 23, 

Aug. 29 to Sept. 1, Sept. 3, 22, 23, 25-28; discharge computed from reconstructed gage-height graph 

based on records for adjacent days and normal recession pattern. Discharge per square mile and runoff In Inches not computed because much of the surface flow Is derived from ground-water storage 

that may originate from an area differing from that of the surface drainage.
STREAMS ON LONG ISLAND 39

Watts Creek at Valley Stream, H. Y.

Location. Lat 40°39'50", long 73°42'15", on right bank 40 ft upstream from West Valley 

Stream Boulevard, at Valley Stream, Nassau County.

Drainage area. About 4.5 sq mi.

Records available. 1851-52, 1854, 1856-57, 1885, 1894, July 1954 to September 1956. Prior 

to 1894, records fragmentary, published in Professional Paper 44.

Gage. Water-stage recorder and concrete control. Datum of gage is 8.53 ft above mean sea 

level, datum of 1929. Prior to 1894, determinations of flow by various methods, at 

different sites and daturns.

Extremes. Maximum discharge during year, 88.2 cfs July 21 (gage height, 2.456 ft); minimum, 2.74 cfs Sept. 10 (gage height, 0.271 ft).

1954-56: Maximum discharge, 174 cfs Aug. 12, 1955 (gage height, 5.134 ft, backwater 

from aquatic vegetation), from floodmark on hook gage; minimum, 0.78 cfs Aug. 2, 1955 

(gage height, 0.163 ft, backwater from aquatic vegetation).

Remarks. Records excellent except those for periods of backwater from aquatic vegetation 

or debris, which are good. Flow regulated occasionally by cleaning operations at outlet 

of Valley Stream Pond above station. This station is operated in connection with an 

inventory of water resources on Long Island. In addition to records of streamflow, 

records of ground-water levels are collected, some of which are published In watersupply papers. See page 603 for results of discharge measurements of Long Island 

streams at sites other than regular gaging stations.

Rating tables, water year 1955-56, except periods of backwater from debris or aquatic 

vegetation (gage height, in feet, and discharge, in cubic feet per second)

Oct. 15 to Sept. 30

0.35 

.5 

.7

5.13

12.0

22.5

0.28 

.3

2.97

3.51

7.08

0.6 

.9

17.2

32.3

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.69

5.27

*8.63

8.50

8.31

11.3

18.3

9.49

7.8

7.2

7.2

6.8

6.5

22.0

22.0

16.2

12.2

9.6

9.0

9.0

8.9

8.0

7.9

8.2

8.6

8.6

7.8

7.5

7.9

16 . 2

'

310.59

10.02

-

-

Nov.

7.8

7.5

*7.3

21.2

19.2

10.4

9.2

9.4

9.6

9.4

15.6

10.0

9.5

13.4

9.4

22.0

12.2

9.4

9.7

10.2

9.2

8.9

9.1

8.8

8.3

8.4

8.3

10.8

11.4

11 . 3

327.4

10.91

-

-

Dec.

12.2

13.8

1370

12.6

12.8

13.2

12.8

12.0

9.6

8.7

8.6

8.9

8.8

8.2

8.3

8.6

11.0

11.0

*10.8

10.3

9.89

9.10

5.56

5.06

5.1

"577 5.0

5.7

5.8

6.0

5.9

284.01

9.16

_

-

Jan.

5.8

578

6.6

6.5

6.3

6.1

6.1

6.0

8.1

9.6

11.0

13.0

IT78

10.4

11.0

10.8

11.4

10. 0

10.2

11.4

11.0

10.8

*10.8

10.6

9.91

9.47

11.5

8.28

8.02

13.0

9 . 36

291.14

9.39

-

-

Feb.

9.05

16.2

11.0

10.0

9.05

11.6

*18.7

7.76

7.46

6.39

8.3

8.2

6.1

6.0

6.3

6.4

6.5

22.6

8.9

7.4

6.7

7.0

7.0

7.1

9.7

7.8

7.4

14.4

8.2

269.21

9.28

-

-

Mar.

7.7

8.0

7.9

7.5

1+S.

9.4

8.5

19.2

9.8

8.1

8.3

8.8

9.0

21.2

ITTo

1O.4

*9.5

9.70

9.28

9.47

12.3

11.0

11.2

11.3

9.70

10.1

10.1

9.85

11.3

11.1

10.2

318.10

10.26

-

-

Apr.

9.8

9.5

9.1

9.0 ?7o~

9.3

*14.6

27.0

13.2

11.2

11.0

10.8

10.4

10.2

11.4

12.8

11.0

10.8

10.6

10.6

10.0

9.9

10.8

10.6

10.2

11.6

9.8

9.7

9.66

11.1

334.66

11.16

-

-

May

10.1

10.3

11.5

10.0

9.3

8.9

17.6

9.O

*8.6

8.68

8.50

8.50

8.27

8.2

7.9

8.3

7.9

8.3

7.7

9.8

8.2

7.8

8.9

7.8

7.4

7.3

11.4

8.6

6^2

7.2

7.5

275.65

8.89

-

-

June

7.8

9.8

17.4

8.1

7.6

7.3

7.4

7.1

7.2

7.2

7.2

7.0

6.2

5.8

5.5

5.7

5.7

6.3

7.4

7.5

8.2

7.9

6.0

~873 26.5

*8.0

14.4

9.8

7.8

6.1

254.2

8.47

-

-

July

5.5

5.5

10.8

6.0

12.8

8.2

6.8

6.4

10.8

7.8

6.4

*6.0

7.84

10.3

6.71

6.6

6.3

5.80

5.73

6.27

31.8

10.6

7.93

7.54

7.42

7.00

9.39

7.25

6.51

?! 12

257.07

8.29

-

-

Aug.

7.89

7.54

7.67

8.16

8.28

10.8

7.8

*6.0

5.2

4.6

4.53

4.37

 5.91

6.66

4.9

4.02

3.71

3.74

3.77

5.36

9.78

4.85

4.24

3.89

3.75

3.89

3.83

5.14

9.49

4.30

4.02

176.09

5.68

-

-

Sept.

4.57

4.11

4.6

4.11

3.80

5.51

6.59

3.71

3.13

3.33

3.34

3.71

3.92

4.02

4.47

5.61

5.57

5.21

3.70

4.37

*4.11

4.44

4.84

8.49

5.73

5.61

6.09

9.4

6.32

5. 6

148.01

4.93

-

-

Calendar year 1955: Max 140 Mln 0.82 Mean 8.49 Cfsm - In.

Water year 1955-56: Max 31.8 Mln 3.13 Mean 8.87 Cfsm - In. -

Peak discharge (base, 58 cfs). --Oct. 14 (4:30 p.m.) 58 cfs (1.558 ft); Nov. 16 (11:15 a.m.) 59 cfs

(1.565 ft)j June 24 (3:30 a.m.) 73 cfs (2.0O8 ft); July 21 (11:15 a.m.) 88.2 cfs (2.456 ft).

Discharge measurement made on this day. 

Note. Backwater from aquatic vegetation Oct. 9 to Nov. 3, Nov. 6 to Dec. 19, Dec. 25 to Jan. 23, 

Feb. 11 to Mar. 17, Apr. 9-28, May 4*-9, May 14 to June 26, June 28 to July 12. Backwater from debris 

Oct. 30 to Nov. 3, Nov. 11, 14, Jan. 12, 13, Mar. 15, 16, Mar. 31 to Apr. 6, Apr. 14-16, 23-26, 

May 7-9, 14-18, June 12-18, July 1, 2, 16, 17, Aug. 6-10, 15, Sept. 3, 28, 3O. Discharge per square 

mile and runoff in Inches not computed because much of the surface flow Is derived from ground-water 

storage that may originate from an area differing from that of the surface drainage.
HUDSON RIVER BASIN

Hudson River near Newcomb, N. Y.

Location.--Lat 43°58'00", long 74°07'55", on left bank 100 ft upstream from highway bridge,

 half a mile downstream from outlet of Harris Lake, 2 miles east of Newcomb, Essex 

County, and 4 miles upstream from Wolf Creek.

Drainage area.--192 sq mi.

Records available. September 1925 to September 1956.

Gage --Water-stage recorder. Datum of gage is 1,550.38 ft above mean sea level, datum of 

1929. Prior to Aug. 5, 1931, staff gage at site 125 ft downstream at same datum.

Average discharge.--31 years, 399 cfs.

Extremes. Maximum discharge during year, 4,130 cfs May 1 (gage height, 8.33 ft); minimum,

 2T~c7s Aug. 23 (gage height, 1.54 ft).

1925-56: Maximum discharge, 7,440 cfs Jan. 1, 1949 (gage height, 11.40 ft); minimum, 11 cfs Sept. 3, 1934 (gage height, 1.09 ft).

Remarks. Records excellent except those for periods of ice effect, which are good. Plow 

slightly regulated by small reservoirs above station.

Revisions (water years). WSP 696: 1928(M). WSP 711: 1930(m).

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 1 Nov. 2 to Sept. 30

116

190

394

854

1,420

1.5 

1.7 

2.0 

2.5 

3.0

211

376

4.0 840

5.0 1,440

7.0 2,930

9.0 4,790

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

247 

241

196

158

136

138

460

756" 859

560

*390

283

219

179

158

246

344

308

270

225

202

263

283

253

266

304

294

276

257

290

679

9,772

315

1.64

1.89

Nov.

1,100 

944

710

572

505

434

376

337

309

283

260

251

241

244

273

*296

344

406

354

309

276

244

220

235

232

205

197

186

167

162

10,672

356

1.85

2.07

Dec.

152 

145

143

147

178

194

173

165

157

145

138

*129

124

120

115

111

107

107

105

96

88

82

78

74

74

78

78

75

71

70

70

3,589

116

0.604

0.70

Jan.

68 

68

66

67

67

66

64

64

64

70

84

103

111

115

TTT

107

101

95

*89

84

80

77

73

70

68

67

64

62

60

6T

65

2,412

77.8

0.405

0.47

Feb.

64

64

64

64

64

64

70

68

68

70

70

73

73

71

71

68

66

66

68

*70

68

66

66

66

68

70

71

71

71

1,973

68.0

0.354

0.38

Mar.

71 

71

70

73

73

73

77

84

84

80

78

80

80

80

82

80

80

77

73

71

71

70

*70

73

73

71

71

70

70

71

73

2,320

74.8

0.390

0.45

Apr.

73 

77

73

84

118

218

479

659

699

664

624

669

824

895

851

835

1,180

1,350

1,180

962

792

674

577

509

450

438

422

636

1,710

2,940

21,658

722

3.76

4.20

May

,960 

* ,160

,390

,170

,070

,830

,620

,430

,300

,330

,690

,570

,580

,720

,660

* ,430

,320

,050

814

761

704

615

684

730

577

446

575

1,440

1,630

1,390

1,760

45,401

1,465

7.63

8.79

June

1,920 

1,630

1,300

1,160

974

814

669

540

462

446

663

*720

581

458

372

309

257

214

178

152

147

162

155

152

150

140

133

135

138

135

15,266

509

2.65

2.96

July

133 

126

118

107

97

111

160

167

162

191

197

178

175

254

344

306

247

197

160

135

118

107

101

97

89

*86

78

75

70

65

60

4,511

146

0.760

0.87

Aug.

57 

5T

50

48

43

41

*39

38

36

35

35

36

35

35

33

32

31

32

35

35

32

30

28

31

33

34

35

35

35

36

52

1,161

37.5

0.195

0.22

Sept.

67 

W

107

109

97

91

141

162

138

118

103

93

86

91

111

113

118

120

115

141

203

W

175

*165

162

147

133

118

109

101

3,711

124

0.646

0.72

Calendar year 1955: Max 3,640 Mln 30 Mean 359 Cfsm 1.87 In. 25.40

Water year 1955-56: Max 3,960 Mln 28 Mean 335 Cfsm 1.74 In. 23.72

Peak discharge (base, 2.500 cfs). May 1 (9:15 a.m.) 4,130 cfs (8.33 ft). 

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 20-25, Jan. 1-3, 6-9, Feb. 2-6, 17-25 (no 

gage-height record Feb. 19-25).
HUDSON RIVER BASIN 41

Cedar River below Chain Lakes, near Indian Lake, N. Y.

Location.--Lab 43°51'20", long 74"14'20", on left bank 1^ miles downstream from Rock River, 

2 miles east of outlet of Chain Lakes, 3 miles upstream from mouth, and 62 miles northeast of village of Indian Lake, Hamilton County.

Drainage area. 160 sq mi.

Records available.--October 1930 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 1,540.00 ft above mean sea level, datum of

Average discharge. 26 years, 316 cfs.

Extremes. Maximum discharge during year, 3,550 cfs May 1 (gage height, 8.81 ft); minimum 

recorded, 28 cfs Oct. 4 (gage height, 1.13 ft).

1930-56: Maximum discharge, 10,200 cfs Sept. 28, 1942 (gage height, 14.40 ft, from 

floodmark), from rating curve extended above 3,300 cfs on basis of slope-area determination of peak flow; minimum, 9.7 cfs Aug. 4, 1955.

Remarks. Records good except those fof periods of ice effect or no gage-height record, 

which are fair. Slight regulation by storage in Cedar River Flow (total storage, 

1,612,000,000 cu ft). Diurnal fluctuation at low and medium flow caused by powerplant 

above station.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.2 

1.6 

2.0 

2.5 

3.0

Oct. 1 to May 1

4.0 

5.0 

7.0 

9.0

May 2 to Sept. 30

63

109

189

293

571

970

2,120

3,720

1.2 

1.6 

2.0

32

62

106

2.5 185

3.0 290

4.0 571

Note. Same as preceding 

table above 4.O ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total 

Mean

Cfsra

In.

Oct.

55

55

51

3739~

69

185

184

171

138

*117

96

94

91

100

439

1,010

687

358

217

161

169

157

149

222

228

220

216

210

358 

2,040

8,323 

268

1.68

1.93

Nov.

1.710 

1,050

517

449

401

333

295

273

258

241

232

226

202

236

284

271

494

466

313

240

225

216

210

256

260

245

215

212

189

182

10,701 

357

2.23

2.49

Dec.

170 

165

170

178

224

214

185

180

175

166

155

150

145

140

135

130

125

125

125

118

108

100

92

88

90

92

90

86

82

82 

84

4,169 

134

0.838

0.97

Jan.

80 

78

76

80

82

78

74

72

74

94

125

150

140

130

125

140

130

*125

118

108

102

96

90

86

82

80

78

74

70

72 

72

2,981 

96.2

O.6O1

0.69

Feb.

72 

72

72

70

70

72

74

74

74

76

76

76

78

7F

76

72

70

72

72

68

 66

64

64

64

66

68

70

72

70

2,068 

71.3

0.446

0.48

Mar.

68 

66

eS

70

72

76

80

86

96

102

96

88

82

78

80

76

78

74

72

70

70

 70

68

72

72

70

68

68

68

68 

70

2,342 

75.5

0.472

0.54

Apr.

70 

70

72

90

300

820

1,000

1,080

9OO

800

688

786

966

912

871

1,110

1,830

1,440

1,040

754

594

466

438

396

361

388

401

903

1,920

2,520

23,986 

800

5.00

5.58

May

5,190 

*2,270

,700

,640

,440

,220

,030

880

734

754

902

812

808

742

631

574

597

517

446

326

269

245

237

224

198

183

233

314

281

373 

703

24,473 

789

4.93

5.69

June

638 

508

437

384

329

297

258

226

204

240

541

478

*347

272

230

210

189

171

147

132

130

132

125

139

132

120

114

111

107

103

7,451 

248

1.55

1.73

July

111 

110

103

100

94

154

204

147

132

125

130

126

189

429

30T

222

181

152

130

103

102

115

110

120

*115

112

106

98

92

87 

83

4,389 

142

0.888

1.02

Aug.

73 

7473-

70

69

62

60

*62

45

53

55

53

47

44

47

39

39

45

49

49

a43

a45

a42

a44

a48

a43

a42

a40

a38

a 40 

a54

1,587 

51.2

0.320

0.37

Sept.

a82 

a280

a220

a!40

98

112

252

214

158

107

104

136

134

130

120

122

142

152

137

210

245

185

171

178

*171

158

140

128

119

114

4,659 

155

0.969

1.08

Calendar year 1955: Max 3,220 Min 11 Mean 3O1 Cfsra 1.88 In. 25.49

Water year 1955-56: Max 3,190 Min 37 Mean 265 Cfsra 1.66 In. 22.57

Peak discharge (base. 2.400 cfsl. May 1 (5:15 a.m.) 5.55O efs (8.81 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for other stations in the uppe 

Hudson River basin.

Note..--Stage-discharge relation affected by ice Nov. 20, 21, 23, 25-27, Dec. 1-3, 8, Dec. 11 tc 

Apr. 10.
HUDSON RIVER BASIN

Hudson River at Gooley, near Indian Lake, N. Y.

Location. Lat 43°49'55", long 74°11'45", on right bank half a mile upstream from Gooley, 

Essex County, 1 mile upstream from Indian River, lj miles downstream from Cedar River, 

and 5 miles northeast of village of Indian Lake, Hamilton County.

Drainage area.--419 sq mi.

Records available.--August 1916 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,433.02 ft above mean sea level, datum of 

1929.

Average discharge. 40 years, 848 cfs.

Extremes. Maximum and minimum discharges for the water years 1924-29, 1956, and minimum 

discharges for the water years 1918-20, some of which have been revised, superseding 

figures published in the water-supply papers indicated, are contained in the following 

table:

WSP

471

501

501

581

601

621

641

661

681

-

Water 

year

1918

1919

1920

1924

1925

1926

1927

1928

1929

1956

Maximum

Date

-

-

-

-

Oct. 1, 1924

Apr. 25, 1926

Nov. 18, 1926

-

-

May 1, 1956

Discharge 

(cfs)

-

-

-

(a)

9,720

9,600

6.530

c )

(d)

8,480

Gage height 

(feet)

-

-

-

-

8.35

8.3

6.9

-

-

7.85

Minimum

Date

Jan. 5,6,7,8,

1918

Aug. 18, 1919

June 15, 16,

1920

Oct. 22, 23,

1923

Sept. 3-7, 1925

July 29, 30,

1926

Sept. 30, 1927

Oct. 1,2,1927

Sept. 9, 1929

Aug. 17, 1956

Discharge 

(cfs)

*t95

*68

*t96

83

t!40

147

95

92

73

75

Gage height 

(feet!

-

1.48

1.58

bl.54

-

1.70

1.58

1.57

1.48

1.43

* Revised.

t Minimum daily.

a Not determined; occurred

b Backwater from logs.

c Not determined; occurred

d Not determined; occurred

during period of no gage-height record in April or May 1924.

during period of no gage-height record Apr. 8 or 9, 1928. 

during period of no gage-height record March to May 1929.

1916-56: Maximum discharge, 15,000 cfs Jan. 1, 1949 (gage height, 10.44 ft); maximum gage height, 11.20 ft Feb. 18, 1954 (ice jam); minimum discharge, 39 cfs Aug. 11, 

1933 (gage height, 1.30 ft).

Remarks.s_. Records excellent except those for periods of ice effect or no gage-height rec- 

, which are fair. Slight regulation by small reservoirs above station.

Revisions. WSP 756: Drainage area. Revised figures of discharge, in cubic feet per 

second, for some periods in the water years 1917-20, 1922-29, superseding those published in WSP 451, 471, 501, 541, 561, 581, 601, 621, 641, 661, 681, are given herein. 

Complete tables of daily discharge are given for the water years 1924-29, but only 

revised figures are given for other water years.

Date

1916

Dec. 9

14

15

16

17

18

19

20

22

Z3

24

25

26

27

28

29

30

31

1917

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

Discharge

1,020

650

600

550

480

420

400

380

460

440

440

420

380

340

320

300

300

280

260

260

260

250

£40

260

320

360

360

320

300

280

280

Date

1917-Con.

Feb. 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Mar. 25

26

27

28

29

30

31

Apr. 1

2

Nov. 24

26

27

28

29

Discharge

220

200

180

160

150

160

160

170

180

180

180

170

170

180

180

180

200

220

240

450

950

1,300

2,000

2,700

2,200

1,900

1,700

3,000

300

280

280

280

280

Date

1917-Con.

Nov. 30

Dec. 1

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

1918

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

Discharge

300

300

160

150

150

150

140

140

140

140

140

140

140

140

130

120

120

110

110

100

100

100

100

95

95

95

95

100

110

120

120

Date

1918 -Con.

Jan. 13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Feb. 1

2

4

6

7

8

9

10

11

13

Mar. 13

14

15

16

Discharge

120

130

130

140

140

130

130

130

130

130

130

120

120

120

120

120

120

120

120

120

120

120

120

120

120

120

120

130

180

750

750

750

700

Date

1918-Con.

Mar. 17

18

19

20

21

23

25

26

27

28

29

30

31

Dec. 6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

1919

Jan. 2

Discharge

750

750

750

800

900

1,500

2 , 400

3,000

3,400

3,400

3,200

3,000

3,200

500

480

500

500

460

440

440

480

500

550

750

750

700

650

600

600

650

750
R

Date

1919-Con. 

Jan. 3 

4 

18 

19 

20 

21 

22 

23 

24 

Feb. 1 

2 

3 

4 

6 

7 

8 

9 

11 

13 

14 

15 

17 

18 

19 

23 

24 

26 

27 

28 

Mar. 2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Apr. 1

3

4 

5

HUDSON RIVER BASIN 43 

Hudson River at Gooley, near Indian Lake, N. Y. Continued 

evised figures of discharge, In cubic feet per second, 1917-20, 1922-23--Contlnued

Discharge

900 

700 

400 

360 

340 

300 

280 

260 

300 

280 

260 

240 

220 

280 

280 

260 

260 

220 

220 

240 

260 

240 

240 

220 

240 

280 

240 

240 

240 

300 

380 

550 

650 

650 

600 

550 

550 

550 

600 

1,400 

2,100 

1,980 

1,800 

1,590 

1,540 

1,640 

2,930 

2,930 

2,800 

2,400 

1,900 

1,600 

1,400 

1,300 

1,100

Date

1919-Con. 

Apr. 30 

May 1 

2 

3 

4 

5 

6 

7 

8 

11 

12 

13 

14 

15 

16 

17 

18 

25 

26 

27 

28 

29 

30 

31 

June 1 

July 4 

5 

Oct. 26 

27 

28 

29 

30 

31 

Nov. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22

Discharge

1,800 

1,600 

800 

1,400 

1,400 

2,800 

2,600 

1,000 

3,070 

900 

1,000 

950 

1,100 

1,300 

1,550 

1,850 

1,900 

3,400 

3,000 

2,800 

1,800 

1,300 

1,200 

950 

772 

102 

153 

750 

1,100 

1,200 

1,200 

1,200 

1,300 

1,700 

1,800 

1,600 

1,400 

1,300 

1,300 

1,100 

900 

800 

750 

750 

800 

1,200 

1,300 

1,500 

1,300 

1 , 200 

1,000 

850 

750 

700 

600

Month

Ja 

Pe 

Ma 

Ap

No 

De

Ja 

Pe 

Ma

De

Ja 

Pe 

Ma 

Ap 

Ma 

Ju 

Ju

Oc 

No

Ja 

Pe 

Ma

De

Ja 

Pe

De

Ja 

Pe 

Ma 

Se

ril.. ........-.-...---...-....

Water year 

vember 1917

Calendar ye 

nuary 1918

ar 1917. ...........

 later year 

cember 1918 

Calendar ye 

nuary 1919

1917-18.. ..........

ar 1918. ...........

ril......... ..................

ly. ......... - - - - - - -

Water year

tober 1919

Calendar ye 

nuary 1920

ar 1919. ...........

 later year 

Calendar ye 

sember 1921 

Calendar ye 

nuary 1922.

ar 1920.. ..........

ar 1921. ...........

 later year 

=ember 1922 

Calendar ye 

nuary 1923.

1921-22. ...........

ar 1922.. ..........

 later year 1922-23. ...........

Date

1919-Con. 

Nov. 23 

24 

25 

26 

27 

28 

29 

30

1920 

Jan. Z 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

Feb. 9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

25 

26 

27 

Mar. 1 

2 

3 

26 

27

1921 

Dec. 14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24

Maximum

460 

280 

2,700 

6,290 

11,400 

3,630 

300 

11,400

140 

900 

3,400 

5,000 

1,390 

5,000

900 

280 

2,930 

9,490 

3,780 

772 

428 

9,490 

1,300 

1,800 

9,490

260 

190 

3,000 

5,530 

5,530

1,540 

8,890

400 

550 

13,400 

400 

13,400

850 

360 

750 

420 

6,330

Discharge

600 

600 

550 

550 

550 

550 

500 

700

240 

240 

220 

220 

220 

220 

220 

200 

200 

200 

200 

190 

190 

180 

180 

140 

120 

120 

120 

100 

110 

160 

160 

170 

150 

150 

150 

120 

120 

120 

1,800 

2,200

500 

440 

380 

440 

650 

1,000 

1,000 

750 

440 

440 

440

Minimum

240 

150 

180 

665 

112 

280 

110 

110

95 

120 

600 

95 

440 

95

260 

220 

240 

1,100 

800 

234 

102 

80 

256 

500 

80

180 

100 

120 

96 

96

200 

63

170 

150 

109 

130 

109

260 

100 

100 

100 

44

Date

1921-Con. 

Dec. 25 

26 

27 

28 

29 

30 

31

1922 

Jan. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

Feb. 15 

16 

17 

18 

19 

20 

Dec. 15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

Mean

323 

206 

553 

2,720 

903 

785 

179 

923

117 

295 

1,340 

838 

746 

944

463 

244 

1,100 

2,700 

1,850 

472 

264 

899 

651 

973 

819

198 

152 

957 

724

731

688 

771

268 

296 

973 

222 

880

444 

200 

372

213 

671

Discharge

420 

380 

340 

320 

280 

240 

200

320 

300 

400 

400 

360 

300 

280 

260 

260 

260 

260 

300 

280 

260 

280 

240 

200 

260 

300 

340 

300 

260 

240 

240 

220 

240 

260 

260 

200 

200 

200 

200 

190 

180 

170 

160 

150 

260 

200 

190 

180 

170 

160 

150 

140 

130

Date

1923 

Jan. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Feb. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

Mar. 2 

3 

4 

5 

6 

7 

8 

Sept. 1 

2 

3 

4 

5 

6 

7 

8

Per square 

mile

.771 

.492 

1.32 

6.49 

2.16 

1.87 

.427 

2.20

.279 

.704 

3.20 

2.00 

1.78 

2.25

1.11 

.582 

2.63 

6.44 

4.42 

1.13 

.630 

2.15 

1.55 

2.32 

1.95

.473 

.363 

2.28 

1.73 

1.74

1.64 

1.84

.640 

.706 

2.32 

.530 

2.10

1.06 

.477 

.888

.508 

1.60

Discharge

380 

550 

850 

800 

850 

800 

750 

700 

600 

450 

280 

340 

400 

320 

320 

320 

340 

360 

360 

380 

380 

420 

360 

300 

240 

220 

220 

200 

340 

300 

280 

220 

180 

180 

180 

200 

200 

240 

220 

180 

120 

110 

100 

120 

160 

170 

200 

140 

130 

380 

400 

400 

280 

200 

170

Runoff in 

inches

.89 

.51 

1.52 

7.25 

29.26 

2.09 

.49 

29.89

.32

.73 

3.67 

27.14 

2.05 

30.57

1.27 

.61 

3.01 

7.19 

5.10 

1.26 

.73 

29.12 

1.79 

2.59 

26.52

.54 

.39 

2.63 

23.53 

23.76

1.89 

25.00

.74 

.74 

31.50 

.61 

28.50

1.22 

.50 

1.02 

.57 

21.73
HUDSON RIVER BASIN

Hudson River at Gooley, near Indian Lake, N. Y. Continued 

Discharge, In cubic feet per second, water year October 1923 to September 1924

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

150

140

130

130

120

150

220

190

160

140

130

120

120

110

110

100

100

95

90

90

90

85

85

150

480

550

600

550

380

340

280

6,185

200

0.477

0.55

Nov.

320

260

240

320

320

340

280

280

280

320

280

260

240

650

440

400

380

360

320

300

380

400

300

240

220

260

240

280

320

360

9,590

320

0.764

0.85

Dec.

1,700

2,200

,900

,400

,200

,100

,600

,600

,400

,300

1,100

950

900

1,000

900

850

750

750

800

750

550

600

650

700

650

500

480

500

500

480

500

30,260

976

2.33

2.69

Jan.

550

600

480

850

55O

420

360

340

350

340

1,100

3,000

2,600

2,400

2,000

1,700

2,000

1,900

1,700

1,300

1,200

1,200

1,200

1,000

850

750

650

650

600

480

400

33,530

1,080

2.58

2.98

Feb.

380

460

800

650

600

600

550

550

550

550

480

440

420

440

340

280

280

260

260

240

240

240

220

220

220

220

220

240

260

11,210

387

0.924

0.99

Mar.

280

280

280

260

240

240

220

220

220

220

220

200

Joo

200

200

240

240

240

260

240

260

300

360

440

500

550

500

480

600

700

800

10,190

329

0.785

0.90

Apr.

800

800

800

750

750

1,500

2,600

2,400

2,200

2,000

1,800

1,700

1,600

2,550

3,320

3,180

2,970

2,970

3,940

4,180

3,400

3,040

2,900

2,620

2,800

2,600

3,600

3,600

4,200

5.000

76,570

2,550

6.09

6.80

May

7,500

8,000

,000

,000

,000

,000

,000

,200

,200

,400

,200

,600

,000

,000

,500

,600

,800

3,200

3,200

2,800

2,400

1,900

1,500

1,400

1,300

1,700

1,100

1,100

1,100

1,000

1,000

115,700

3,730

8.90

10.27

June

1,100

700

650

600

550

500

400

400

350

300

300

320

360

360

600

550

500

420

320

260

380

550

440

440

400

400

420

480

500

380

13,930

464

1.11

1.24

July

340

300

280

280

260

700

600

500

400

360

320

280

260

320

280

260

240

260

260

240

240

220

220

200

220

220

220

200

190

180

180-

9,030

291

0.695

0.80

Aug.

180

170

160

150

240

420

650

700

655

500

480

420

380

340

340

300

260

240

220

220

320

320

360

440

460

440

380

360

320

280

260

10,910

352

0.840

0.97

Sept.

240

240

420

380

340

320

320

320

360

750

1,000

1,000

950

850

700

550

500

460

400

380

320

260

240

220

220

200

200

190

220

1,700

14,250

475

1.13

1.26

Calendar year 1923: Max 6,330 Mln 44 Mean 729 Cfsm 1.74 In . 23.64

Water year 1923-24: Max 8,000 Mln 85 Mean 933 Cfsm 2.23 In. 30.30

Mote.--Stage-discharge relation affected by Ice Dec. 30 to Jan. 2, Jan. 20 to Apr. 3. Backwater 

from logs Oct. 1 to Dec. 29, July 10 to Sept. 29. Ho gage-height record Oct. 29 to Nov. 13, Jan. 3- 

19, Feb. 6-13, Apr. 4-13, Apr. 25 to July 9, Sept. 29, 30; discharge estimated on basis of other records in the Hudson River basin.

Discharge, in cubic feet per second, water year October 1924 to September 1925

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

8,890

7,420

4,050

2,760

1,800

1,400

1,100

900

800

700

550

420

460

550

600

460

420

360

280

440

480

500

440

340

360

420

300

240

260

260

340

38,300

1,240

2.96

3.40

Nov.

360

280

220

220

220

220

220

240

180

180

180

200

220

220

220

280

280

220

220

220

280

220

5,200

3,000

2,400

1,800

1,300

1,100

900

800

19,600

653

1.56

1.74

Dec.

650

600

600

600

500

500

500

500

1,000

1,500

1,100

950

850

700

600

600

600

500

480

480

420

420

420

380

380

340

200

200

200

260

220

17,050

550

1.31

1.51

Jan.

380

360

320

320

500

340

320

320

300

300

300

260

260

240

220

190

180

170

160

160

160

170

150

150

160

160

160

170

140

140

140

7,100

229

0.547

0.65

Feb.

140

150

150

160

150

150

140

150

150

220

400

1,600

1,600

1,600

1,500

1,400

1,300

1,200

1,100

950

800

900

950

1,300

1,600

1.700

1,500

1,300

_

24,260

866

2.07

2.15

Mar.

1,000

850

800

700

650

650

650

' 650

700

1,200

1,200

1,300

1,400

1,700

1,600

1,500

1,400

1,800

2,200

2,200

2,200

2,000

1,900

1,700

1,600

1,600

4,600

7,140

7,560

6,330

4,850

65,630

2,120

5.06

5.83

Apr.

5,860

3,110

2,760

2,560

2,050

1,760

1,640

1,700

1,810

1,990

1,760

1,930

2,500

2,170

2,750

3,400

3,040

2,500

2,240

1,930

1,700

1,640

2,300

5,110

5,180

5,480

3,700

3,480

2,620

2,050

74,720

2,490

5.94

6.65

May

1,990

1,930

1,870

1,760

2,110

1,810

2,240

1,810

1,390

1,490

1,800

1,300

1,100

1,100

950

850

1,400

1,000

1,400

900

1,100

1,000

800

8OO

800

800

750

750

700

700

700

39,100

1,260

3.01

3.47

June

800

1,300

1,800

1,800

1,500

1,200

1,000

800

650

550

480

420

380

340

520

340

320

520

480

700

750

650

500

400

400

550

480

460

480

550

20,720

691

1.65

1.84

July

550

550

500

440

400

580

540

520

300

580

500

400

540

300

260

260

500

600

500

420

360

600

,300

,600

,500

,100

,200

,000

950

750

800

19,200

619

1.48

1.70

Aug.

600

550

550

500

500

500

500

500

550

650

600

550

480

460

440

400

420

750

TSo

650

550

400

560

540

520

500

260

260

220

190

180

14,280

461

1.10

1.27

Sept.

160

150

140

T45

140

140

140

160

160

160

150

160

540

1,000

1,500

1,400

1,900

1,700

1,200

950

1,000

1,200

1,000

800

700

750

1,000

1,000

1,200

850

21,090

703

1.68

1.87

Calendar year 1924; Max 8,890 Min 150 Mean 1,010 Cfsm 2.41 In. 32.86

Water year 1924-25: Max 8,890 Min 140 Mean 989 Cfsm 2.36 In. 32.04

Mote.--Stage-discharge relation affected by ice Jan. 14-22, Feb. 26 to Mar. 27. Backwater from 

logs May 11 to Sept. 30. Ho gage-height record Oct. 5 to Jan. 15, Jan. 25 to Feb. 25j discharge 

estimated on basis of other records In Hudson River basin.
HUDSON RIVER BASIN

Hudson River at Gooley, near Indian Lake, N. Y. Continued 

Discharge, In cubic feet per second, water year October 1925 to September 1926

45

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itatal

Mean

Cfsm

In.

Oct.

700

600

650

900

1,000

1,200

1,000

900

850

900

900

800

850

900

850

900

1,000

1,400

1,500

1,400

1,300

1,200

1,100

950

1,000

1.600

1,500

1,300

1,200

1,100

950

32,400

1,050

2.51

2.88

Nov.

900

850

900

700

650

600

650

750

1,400

1,500

1,300

1,300

1,400

3,200

5,400

3,200

2,800

2,400

1,900

1,600

1,400

1,200

1,100

950

850

800

750

800

800

800

40,850

1,360

3.25

3.63

Dec.

650

600

600

650

1,100

2,600

5,400

3,000

2,400

1,600

1,300

1,100

1,100

900

750

750

750

700

700

650

750

700

600

550

500

480

650

700

650

600

550

32,030

1,030

2.46

2.84

Jan.

550

500

420

340

320

320

500

300

300

520

520

520

320

500

520

300

600

700

440

480

550

480

480

460

440

440

420

420

400

400

380

12,640

408

0.974

1.12

Feb.

400

380

400

400

580

380

360

340

560

520

500

500

300

320

300

300

500

520

300

260

260

280

280

280

280

280

260

280

_

8,920

319

0.761

0.79

Mar.

240

240

240

240

260

240

240

240

260

240

240

220

220

240

240

220

220

200

200

200

220

260

300

340

540

540

520

300

280

300

300

7,940

256

0.611

0.70

Apr.

300

300

520

320

320

340

550

800

1,100

1,300

1,500

1,700

1,800

2,000

2,000

1,800

1,600

1,500

1,100

1,100

1,200

1,500

5,800

5,760

9,120

8,660

6,530

5,030

3,780

3,180

70,110

2,340

5.58

6.22

May

2,690

2,900

5,570

7,560

5,050

4,510

3,400

3,780

2,970

5,940

3,040

3,310

2,050

2,050

1,990

1,930

1,640

1,590

2,500

2,300

1,700

2,220

1,640

1,130

1,100

945

785

710

TTo

710

725

76,925

2,480

5.92

6.83

June

1,700

1,200

1,400

1,300

800

750

700

700

750

850

900

950

1,000

800

1,300

2,600

2,600

2,200

1,600

1,200

900

650

750

650

600

700

850

850

650

600

32,500

1,080

2.58

2.88

July

480

420

380

354

311

296

327

354

580

850

1,100

1,200

900

650

500

500

750

700

650

550

580

506

267

256

211

187

172

161

147

151

154

14,024

452

1.08

1.24

Aug.

154

161

211

241

215

195

215

554

412

418

570

321

282

254

227

207

199

191

179

169

203

227

219

380

800

1,000

850

700

550

460

560

10,724

546

0.826

0.95

Sept.

506

267

256

215

219

245

267

287

287

543

418

406

345

292

258

245

249

272

306

306

700

850

700

600

850

900

750

600

500

420

12,657

421

1.00

1.12

Calendar year 1925: Max 7,560 Mln 140 Mean 1,070 cfsm 2.55 In. 34.74

Water year 1925-26: Max 9,120 Mln 147 Mean 964 cfsm 2.30 In. 31.20

Note. Stage-discharge relation affected by Ice Jan. 15 to Feb. 2, Mar. 14 to Apr. 25. Backwater 

from logs Oct. 1 to Nov. 50, June 1 to July 5, July 9-21, Aug. 24-51, Sept. 21-50. No gage-height 

record Dec. 1 to Jan. 15, Jan. 21, Feb. 5 to Mar. 14, Apr. 20, 21; discharge estimated on basis of 

records for other stations In Hudson River baaln.

Discharge, In cubic feet per second, water year October 1926 to September 1927

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

Cfsm

In.

Oct.

360 

580

800

800

750

1,100

1,100

1,100

950

800

700

600

500

480

500

550

950

850

750

550

440

420

440

550

1,200

1,900

1,700

1,500

1,500

1,100

1,100

26,220

846

2.02

2.33

NOV.

1,200 

1,200

1,200

1,100

1,400

900

800

800

850

1,500

1,600

1,700

1,500

1,200

1,000

1,500

5,030

5,760

3,780

2,900

2,170

1,760

1,490

1,300

1,120

1,020

1,140

1,190

1,200

1,180

50,290

1,680

4.01

4.46

Dec.

1,100 

929

850

750

700

650

600

550

550

500

500

500

480

480

480

460

420

380

380

340

340

380

280

360

360

360

300

320

300

300

280

15,179

490

1.17

1.35

Jan.

310 

290

230

250

270

250

170

250

250

190

190

200

200

190

180

200

200

200

200

240

240

260

260

240

240

240

240

240

260

260

260

7,160

231

0.551

0.64

Feb.

260 

260

260

240

240

240

240

240

240

240

240

240

240

220

220

240

240

260

260

240

240

240

240

240

240

260

280

300

6,900

246

0.587

0.61

Mar.

500 

280

260

260

260

'240 240

240

260

260

260

260

280

380

700

850

1,100

2,200

3,620

4,020

3,780

3,400

2,760

2,170

1,760

1,440

1,200

1,040

945

857

841

36,463

1,180

2.82

3.24

Apr.

793

755

778

785

801

817

979

929

905

905

873

897

897

889

889

1,000

1,400

1,800

2,600

3,400

4,200

4,200

4,200

3,400

2,200

2,000

1,600

1,400

1,500

1,200

48,992

1,630

3.89

4.35

May

1,300 

900

850

850

1,200

1,300

1,100

1,100

1,000

1,100

1,300

1,640

1,870

1,350

1,300

2,350

1,760

2,810

2,050

2,170

1,990

1,870

1,760

2,240

2,360

2,240

2,050

1,930

1,320

1,880

996

49,936

1,610

3.84

4.43

June

996 

857

740

635

1,610

1,420

1,250

2,600

800

600

550

800

700

650

550

460

400

440

320

300

270

260

260

220

260

340

320

320

320

320

19,568

652

1.56

1.74

July

240 

260

240

280

240

240

260

260

260

280

260

240

240

220

220

240

220

400

440

420

340

500

280

600

850

800

700

550

440

360

480

11,160

360

0.859

0.99

Aug.

420 

580

260

240

220

200

240

280

260

300

240

190

170

160

180

220

240

220

200

180

170

180

200

220

190

160

150

160

440

650

650

7,970

257

0.613

0.71

Sept.

550 

500

550

550

480

420

340

300

260

240

700

900

480

240

200

220

220

220

200

200

180

160

150

140

320

200

120

110

100

95

9,345

512

0.745

0.83

Calendar year 1926: Max 9,120 Mln 147 Mean 926 Cfsm 2.21 In. 29.99

Water year 1926-27: Max 5,760 Mln 95 Mean 792 Cfsm 1.89 In. 25.68

Note.--Stage-discharge relation affected by Ice Dec. 3-7, Jan. 20 to Feb. 20, Mar. 10-18. Backwater from logs Oct. 1 to Nov. 16, Aug. 9 to Sept. 30. No gage-height record Dec. 8 to Jan. 20, 

Feb. 21 to Mar. 10, Apr. 16 to May 11, June 4, June 8 to Aug. 8j discharge estimated on basis of records for other stations In Hudson River basin.
46 HUDSON RIVER BASIN

Hudson River at Gooley, near Indian Lake', N. Y. Continued 

Discharge, in cubic feet per second, water year October 1927 to September 1928

Day

1

2

3 

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

95

110

220 

260

420

360 

320

320

850

650

480

340

500

900

900

800

650

600

550

550

650

900

750

600

500

450

420

380

400

950

16,725

540

1.29

1.48

Nov.

650

380

400 

1,690

2,240

2,170 

1,700

1,340

1,060

889

801

857

1,050

1,020

954

897

1,060

5,750

5,210

4,020

2,900

2,170

1,990

2,560

2,500

2,170

1,930

2,170

2,300

2, 690

57,518

1,920

4.58

5.11

Dec.

4,280

4,850

4,180 

2,900

2,170

1,760 

1,490

3,110

3,780

3,110

2,500

1,990

1,760

1,870

2,050

1,930

1,760

1,540

1,440

1,290

1,140

1,070

937

793

700

650

600

600

600

700

58,400

1,880

4.49

5.18

Jan.

1,020

1,250

1,200

1,100

929

825 

748

680

642

621

600

600

600

600

600

600

600

550

550

550

500

550

500

550

550

440

480

480

500

420

400

20,235

653

1.56

1.80

Feb.

380

380

360 

360

360

360 

360

360

380

420

460

440

420

440

460

500

550

500

480

460

420

400

380

400

400

380

360

360

360

11,890

410

0.979

1.06

Mar.

340

340

300 

300

300

300 

300

300

280

280

280

260

280

340

420

460

480

480

500

480

440

440

420

440

600

900

1,600

2,200

2,400

1^700

20,160

650

1.55

1.79

Apr.

1,600

1,200

1,100 

1,100

2,000

3,800 

6,500

11,000

11,000

7,000

4,800

3,400

2,690

2,170

2,170

2,050

1,760

1,500

1,500

1,800

1,800

1,600

1,500

1,600

1,700

1,600

1,400

1,400

1,400

1,400

85,540

2,850

6.80

7.59

May

1,700

2,600

3,000 

3,400

4,400

4,800 

4,600

4,000

3,200

2,600

2,200

2,000

1,800

1,300

1,200

1,000

1,200

1,000

1,200

1,800

2,200

2,000

1,800

1,600

1,300

1,100

1,000

1,300

1,400

1,100

1,300

65,100

2,100

5.01

5.78

June

1,300

1,500

1,200 

1,000

950

1,300 

1,700

1,600

1,500

1,400

1,200

1,000

900

800

800

700

600

550

600

700

600

550

550

500

500

700

800

700

650

27,800

927

2.21

2.47

July

1,300

1,100

950 

850

750

1.100 

650

500

420

380

400

360

440

1,300

850

650

550

480

460

850

950

1,100

900

500

400

340

320

400

440

400

500

20,590

664

1.58

1.83

Aug.

420

320

300 

460

700

800 

900

850

750

650

550

480

460

420

360

320

300

260

240

240

320

320

280

280

280

340

340

300

260

240 

pen cbu

13,000

419

1.00

1.15

Sept.

280

260

240 

240

240

220 

220

200

190

180

220

340

800

900

750

650

550

500

420

360

340

320

320

300

280

280

260

280

300

300

10,740

358

0.854

0.95

Calendar year 1927: Max 5,750 Min 95 Mean 904 Cfsm 2.16 In. 29.31

Water year 1927-28: Max - Min 95 Mean 1,110 Cfsm 2.65 In. 36.19

Note.--Stage-discharge relation affected by ice Dec. 25 to Jan. 1, Feb. 1-29. Backwater from 

logs Oct. 1 to Nov. 3, June 27 to Sept. 30. No gage-height record Jan. 8 to Feb. 7, Mar. 2-9, 

Mar. 28 to Apr. 12, Apr. 18 to June 26; discharge estimated on basis of records for other stations 

in the Hudson River basin.

Discharge, in cubic feet per second, water year October 1928 "to September 1929

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ibtal

Mean

Cfsm

In.

Cale

Oct.

280

280

260

650

500

300

800

600

280

240

240

240

300

900

360

280

280

400

800

950

850

750

650

600

550

500

460

400

380

380

340

14,800

477

1.14

1.31

Nov.

320

320

340

400

480

500

500

460

420

380

360

340

750

1,200

850

700

700

900

900

1,500

1,800

1,500

1,200

1,000

850

700

650

650

600

600

21,870

729

1.74

1.94

Dec.

550

500

500

480

480

460

460

440

420

400

380

360

360

340

320

340

360

1,100

1,500

1,300

950

750

600

500

460

460

460

440

440

440

440

16,990

548

1.31

1.51

Jan.

400

420

380

360

340

420

600

950

1,000

900

800

700

650

550

500

460

440

500

1,600

2,600

5,000

2,800

2,000

1,600

1,300

1,100

900

750

700

600

500

29,820

962

2.30

2.65

Feb.

480

480

420

380

320

340

380

380

380

380

360

320

280

300

280

320

320

320

340

340

240

240

220

220

260

280

280

280

_

9,140

326

0.778

0.81

Mar.

280

280

260

280

280

280

340

340

320

300

280

260

320

600

1,400

3,200

3,800

3,600

2,800

2,200

1,800

1,700

2,600

4,600

5,500

5,000

4,400

3,400

2,600

2,200

2,000

57,220

1,846

4.41

5.08

Apr.

2,000

2,800

2,800

2,400

2,200

3,200

5,000

7,500

7,000

5,000

4,000

2,600

1,800

1,300

1,200

1,100

1,000

950

900

950

1,100

1,600

1,700

1,800

1,500

2,000

3,600

2,600

3,200

3,400

78,200

2,607

6.22

6.94

May

2,400

2,400

3,800

4,600

3,800

3,600

3,400

2,800

2,400

2,000

1,400

1,300

1,300

1,320

1,850

3,150

3,320

2,200

1,700

2,000

1,700

1,400

1,400

1,300

1,400

1,300

1,200

1,400

1,100

950

900

64,790

2,090

4.99

5.75

June

850

650

600

650

700

650

650

650

600

550

550

550

650

400

380

400

360

340

320

480

700

700

650

1,100

1,800

1,800

1,600

1,200

1,500

1,500

23,530

784

1.87

2.09

July

1,600

1,700

1,300

1,000

950

755

680

665

628

565

488

424

379

600

1,350

1,000

544

436

502

695

635

509

413

368

351

362

330

288

259

230

204

20,210

652

1.56

1.79

Aug.

195

191

187

268

390

462

502

469

402

346

346

351

324

288

268

288

263

249

226

208

195

170

162

182

195

158

139

125

119

115

105

7,888

254

0.606

0.70

Sept.

99

94

91

88

83

77

75

75

83

115

132

125

122

147

191

200

195

244

309

283

288

217

182

162

151

143

139

132

132

129

4,503

150

0.358

0.40

ndar year 1928: Max - Min 180 Mean 898 Cfsm 2.14 In. 29.18

Water year 1928-29: Max 7,500 Min 75 Mean 956 Cfsm 2.28 In. 30.97

Calendar year 1929: Max 7,500 Min 75 Mean 971 Cfsm 2.32 In. 31.44

Note.--Stage-discharge relation affected by ice Mar. 16-22. Backwater from logs Oct. 1 to 

Nov. 27, Nov. 29, Dec. 1-5, 16-20; from ice and logs Nov. 28, 30, Dec. 6-15, 21-31, Jan. 11, 12, 

Feb. 20 to Mar. 15. No gage-height record Jan. 1-11, Jan. 13 to Feb. 20, Mar. 22 to May 14, May 17 

to July 6; discharge estimated on basis of other records In Hudson River basin.
HUDSON RIVER BASIN

Hudson River at Gooley, near Indian Lake, N. Y. Continued

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 30 May 1 to Sept. 30

1.7 

2.0 

2.5 

3.0

148

273

571

953

4.0 

5.0 

7.0

1,970

3,280

6,660

1.4 

1.6 

2.0 

2.5 

3.0

68

123

294

598

990

4.0 2,010

5.0 3,320

6.0 4,900

8.0 8,810

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

314

309

273

228

195

214

498

979

1,000

782

*571

428

352

293

283

636

1,400

1,130

716

504

404

434

485

459

538

585

578

599

564

670

5,110

19,529

630

1.50

1.73

Nov.

3,500

2,590

1,640

1,340

1,170

979

846

767

692

620

578

544

517

585

»627

656

948

1,030

838

680

620

580

540

592

600

540

490

470

430

410

26,419

881

2.10

2.34

Dec.

380

370

370

390

480

490

430

410

400

380

360

340

*320

310

300

290

280

280

270

250

235

220

205

190

195

200

195

185

180

Ton lou

185

9,270

299

0.714

0.82

Jan.

175

170

170

175

175

170

165

160

165

195

250

300

300

290

280

290

270

*250

240

225

215

205

195

185

175

170

165

160

155

160

165

6,365

205

0.489

0.56

Feb.

160

160

160

160

160

160

170

170

170

175

175

175

180

180

175

165

160

165

170

165

*160

155

155

155

160

165

170

170

170

4,815

166

0.396

0.43

Mar.

165

165

165

170

170

175

185

200

215

215

205

200

195

190

195

185

190

180

170

170

170

*165

165

170

170

170

165

165

165

165

170

5,545

179

0.427

0.49

Apr.

170

170

170

210

500

1,240

1,750

2,100

1,900

1,750

1,550

1,750

2,150

2,200

2,050

2,340

3,520

3,390

2,770

2,160

1,750

1,460

1,290

1,170

1,050

1,070

1,080

1,870

4,210

6,150

54,940

1,831

4.37

4.88

May

8,100

*6,390

4,970

4,510

4,240

3,700

3,180

2,730

2,230

2,150

2,720

2,670

2,630

2,700

2,560

2,300

2,150

1,850

1,500

1,300

1,140

1,020

1,080

1,120

920

760

940

2,050

2,250

2,050

*2,900

80,810

2,607

6.22

7.17

June

3,120

2,660

2,150

1,880

1,630

1,400

1,150

973

854

862

1,300

1,400

1,140

912

759

648

564

484

416

364

342

358

353

364

353

326

310

305

£99

289

27,965

932

2.22

2.48

July

294

289

274

260

240

317

441

393

370

381

398

376

430

743

751

648

537

447

370

305

279

279

510

497

*255

»245

227

209

196

184

171

11,316

365

0.871

1.00

Aug.

155

152

145

137

130

123

114

114

*97

101

104

101

92

90

92

82

80

85

95

95

85

85

80

85

92

87

87

85

82

85

117

3,154

102

0.243

0.28

Sept.

177

485

428

315

260

255

472

465

381

289

250

274

265

255

260

274

310

342

305

420

520

460

420

410

*400

370

331

299

274

260

10,226

341

0.814

0.91

Calendar year 1955: Max 7,610 Min 52 Mean 772 Cfsm 1.84 In. 25.02

Water year 1955-56: Max 8,100 Min 80 Mean 711 Cfsm 1.70 In. 23.09

Peak discharge (base, 5,800 Cfs).--May 1 (6:30 to 9 a.m.) 8,480 cfs (7.85 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Nov. 20-23, Nov. 25 to Apr. 15. No gage-height 

record Nov. 10-15, May 19-31, Sept. 20-25; discharge estimated on basis of recorded range in stage 

and records for station near Newcomb and Cedar River near Indian Lake.
48 HUDSON RIVER BASIN

Indian Lake Reservoir near Indian Lake, N. Y.

Location. Lat 43°45i20", long 74°16'3S", at Indian Lake Dam on Indian River, 2 miles 

south of village of Indian Lake, Hamilton County.

Drainage area.--131 sq mi.

Records available.--July 1900 to September 1956.

Gage. Wire-weight gage read once daily. Datum of gage is 1,617.95 ft above mean sea

 level, adjustment of 1912. Prior to Oct. 8, 1939, staff or chain gages at same site 

and datum.

Extremes.--Maximum gage height observed during year, 33.75 ft July 18, 19, 21-23 (contents,

 4,741,000 000 cu ft); minimum observed, 9.45 ft Apr. 5 (contents, 890,000,000 cu ft).

1900-1956: Maximum gage height observed, 38.8 ft Mar. 28, 1913 (contents, 

5,781,000,000 cu ft); minimum, -1.10 ft (estimated) Feb. 13, 1948 (contents, 

199,000,000 cu ft).

Remarks --Reservoir is formed by masonry dam, completed in 1898. Usable capacity, about

 TT5TiO,000,000 cu ft at gage height 33.38 ft (crest of spillway). Sills of double

sluice gates at lowest outlet at gage height -2.41 ft. Dead storage unknown. Water is 

used for power development, for improvement of navigation in lower Hudson River, and to 

compensate for flow diverted from Hudson River at Glens Palls into Champlain Canal.

Cooperation. Gage-height record furnished by Indian River Co.

Capacity table, water year 1955-56 (gage height, in feet, 

and capacity, in billions of cubic feet)

9.0 

12.0

15.0

20.0

0.832

1.228

1.651

2.403

25.0

30.0

35.0

3.206

4.053

4.990

Gage height, in feet, at 8 a.m., water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

(t)

(*)

Oct.

18.0

17.9

17.75

17.6

17.5

17.4

TTT

17.9

18.05

18.05

18.0

18.05

18.05

18.0

17.95

18.75

19.25

20.05

20.55

20.7

21.0

21.05

21.2

21.3

21.4

21.45

21.75

21.85

21.95

22.1 

22.9

2.951

+316

Nov.

23.7

24.15

24.5

24.6

24.8

24.95

25.05

25.1

25.15

25.2

25.25

25.35

25.45

25.55

25.65

25.75

25.95

26.3

26.4

26.55

26.65

26.8

26.9

27.0

27.2

27.35

27.45

27.55

27.6

27.65

3.661

+274

Dec.

27.75

27.8

27.85

27.95

28.15

28.2

28.25

28.3

28.35

28.4

28.45

28.5

28.55

28.6

28.6

28.6

28.65

28.7

28.75

28.75

28.8

2878

28.7

28.65

28.6

28.55

28.5

28.45

28.3

27.75 

27.65

3.635

-9.71

Jan.

27.5

2771

27.3

27.15

26.9

26.65

26.65

26.45

26.25

26.1

26.0

26.0

26.05

25.9

25.8

25.65

25.5

25.35

25.2

25.0

24.75

24.55

24.4

24.2

24.05

23.85

23.6

23.35

23.1

22.95 

22.75

2.822

-304

Feb.

22.6 2"274"

22.25

21.95

21.75

21.55

21.45

21.3

21.15

21.0

20.65

20.45

20.2

20.05

19.9

19.7

19.5

19.25

19.1

18.9

18.7

18.5

18.35

18.2

17.85

17.6

17.45

17.35

17.2

1.956

-346

Mar.

17.0

16.8

16.6

16.45

16.25

16.0

15.85

15.7

15.55

15.25

15.1

14.9

14.75

14.55

14.3

14.05

13.8

13.5

13.25

13.05

12.9

12.55

12.25

12.05

11.8

11.55

11.3

11.05

10.85

10.6 

10.35

0.986 -362

Apr.

10.15

9.9

9.7

9.5

9.45

9.5

9.8

10.45

10.9

11.3

11.65

11.9

12.35

12.95

13.5

13.95

15.0

16.0

16.6

17.0

17.3

17.55

17.8

18.0

18.15

18.3

18.55

18.9

19.8

21.4

2.743

+678

May

22.5

2374"

24.1

24.7

25.4

25.8

26.2

26.6

26.9

27.15

27.55

27.9

28.2

28.45

28.65

29.0

29.2

29.4

29.7

29.8

29.9

30.0

30.1

30.2

30.25

30.3

30.4

30.5

30.7

30.8 

51.15

4.310

+585

June

31.65

3T7§~

32.15

32.35

32.55

32.65

32.75

32.8

32.85

32.9

33.15

33.3

33.35

33.4

33.5

33.5

33.55

33.55

33.55

33.55

33.55

33.55

33.55

33.55

55.6

33.55

33.55

33.55

33.55

33.55

4.702

+151

July

33.55

33.55

33.55

33.3

33.15

33.05

33.2

33.3

33.2

33.15

33.15

33.15

33.2

33.45

33.65

33.7

33.7

33.75

33.75

33.7

33.75

33.75

33.75

33.65

33.5

33.4

33.2

33.1

32.95

32.8 

52.55

4.475

-84.7

Aug.

32.3

32.05

31.8

31.45

31.2

31.0

30.75

30.4

30.0

29.7

29.4

29.0

28.65

28.3

27.95

27.55

27.25

26.9

26.6

26.25

25.95

25.7

25.45

25.25

24.9

24.65

24.35

24.1

23.9

23.65 

23.65

3.000

-551

Sept.

23.8

25705

26.0

26.4

26.6

26.75

26.75

26.75

26.7

26.6

26.55

26.35

26.2

26.0

25.6

25.4

25.25

25.2

25.25

25.35

25.5

25.75

25.9

26.1

26.05

26.0

25.95

25.9

25.85

25.8

3.313

+121

Calendar year 1955.................... * +6.82

Water year 1955-56.................... t +38.2

t Contents, in billions of cubic feet, at 12 p.m. on last day of month. 

* Change in contents, equivalent in cubic feet per second.
HUDSON RIVER BASIN 49

Indian River near Indian Lake, N. Y.

Location. Lat 43"45"30", long 74"16"05", on right bank three-quarters of a mile downstream from Indian Lake Dam, 1 mile upstream from Big Brook, and 2 miles south of 

village of Indian Lake, Hamilton County.

Drainage area.--132 sq mi.

Records available. July 1912 to June 1914, June 1915 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,604.27 ft above mean sea level, adjustment of 1912. Prior to Aug. 30, 1916, staff gage at same site and datum.

Average discharge.--41 years (1912-13, 1916-56), 292 cfs (unadjusted).

Extremes. Maximum discharge during year, 781 cfs Aug. 7 (gage height, 3.49 ft); minimum 

daily, 35 cfs Oct. 12; minimum gage height, 0.82 ft Oct. 11, 12.

1912-14, 1915-56: Maximum discharge, 3,460 cfs Mar. 28, 1913 (gage height, 7.8 ft); 

minimum, less than 1 cfs at times when entire flow of river is being stored in Indian 

Lake Reservoir.

Remarks. Records excellent except those for periods of no gage-height record, which are 

good. Flow almost completely regulated by Indian Lake Reservoir (see preceding page).

Rating tables, water year 1955-56 (gage height, In feet, and discharge, 

In oublo feet per second)

1.7 

2.2

183

311

0.8

1.1 

1.5

Oct. 11 to Sept. 30

33 2.0

69 3.0

139 4.0

256

580

1,010

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

291

291

289

286

£86

291

294

200

217

*291

161

35

122

200

103

40

39

38

37

36

36

36

36

37

38

38

38

38

38

44

a45

3,971

128

Nov.

a45

aiT

a44

42

41

40

40

40

40

40

40

40

40

40

*40

41

42

41

41

41

41

41

41

42

41

41

41

41

41

41

1,233

41.1

Dec.

41

41

41

42

44

42

42

42

42

42

42

42

*42

42

41

41

41

41

41

41

41

213

399

396

358

355

355

355

355

a352

352

4,364

141

Jan.

352

352

349

422

476

218

315

473

469

370

159

41

3T7

469

466

466

462

462

462

498

501

455

455

452

449

440

480

483

449

449

445

12,665

409

Feb.

442

442

549

557

432

432

432

432

428

535

538

422

418

418

415

412

512

524

405

402

399

399

396

516

527

392

389

386

386

12,937

446

Mar.

383

459

512

418

418

415

412

409

491

494

402

399

396

469

509

505

501

494

487

480

476

473

*466

459

455

449

445

442

435

428

422

14,043

453

Apr.

415

*412

402

402

405

201

47

44

42

45

46

50

48

47

48

54

54

52

51

51

51

52

52

51

51

52

51

54

58

57

3,445

115

May

54

54

56

57

57

56

56

56

57

58

58

58

58

58

58

60

*60

60

60

58

58

58

60

60

60

60

60

60

60

64

64

1,813

58.5

June

62

62

62

62

62

62

62

62

62

65

65

64

*64

64

64

64

64

64

64

64

64

64

65

65

65

65

65

65

64

64

1,910

63.7

July

65

65

254

370

370

213

66

223

373

215

65

65

66

68

66

65

65

64

64

65

65

66

255

367

*352

352

367

367

367

507

600

6,532

211

Aug.

600

596

592

584

580

576

663

772

768

*759

751

742

738

734

729

725

717

708

704

639

565

561

557

557

553

546

542

542

538

538

211

19,387

625

Sept.

69

66

62

62

62

179

314

308

305

303

373

557

553

550

546

542

389

169

183

289

156

58ssies

291

*291

289

289

286

443

8,207

274

Adjusted for change In contents In Indian Lake Reservoir

Mean 

Cfsm 

In.

444 

3.36 

3.88

315 

2.39 

2.66

Calendar year 1955: 

Water year 1955-56:

131 

0.992 

1.14

105 

0.795 

0.92

100 

0.758 

0.82

90.8 

0.688 

0.79

793

6.01 

6.70

644 

4.88 

5.62

Observed

Max 991 Mln 33 Mean 274 

Max 772 Mln 35 Mean 247

215 

1.63 

1.82

126 

0.955 

1.10

74.7 

0.566 

0.65

394 

2.98 

3.33

Adjusted

Mean 281 Cfsm 2.13 In. 28.90 

Mean 286 Cfsm 2.17 In. 29.43

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated from reconstructed gage-height graph based on 

partial gage-height record, record of gate operation at Indian Lake Dam, and weather records.
50 HUDSON RIVER BASIN

Hudson River at North Creek, N. Y.

Location. Lat 43°42'00", long 73°59 I 00", on left bank 125 ft upstream from highway bridge 

in village of North Creek, Warren County, 500 ft upstream from North Creek, and 26 miles 

downstream from Indian Lake Reservoir.

Drainage area. 792 sq mi.

Records available. September 1907 to September 1956.

Gage. Water-stage recorder. Datum of gage is 987.51 ft above mean sea level, datum of

1929. Prior to Oct. 15, 1930, chain gages at sites 80 and 125 ft downstream at same datum.

Average discharge.--49 years, 1,565 cfs.

Extremes.--The figures of maximum and minimum discharges for water years 1909, 1913, 1915- 

18, and 1956, some of which have been revised, superseding those published in the watersupply papers indicated, are contained in the following table.

WSP

-

351

401

431

451

471

-

Water

year

1909

1913

1915

1916

1917

1918

1956

Maximum

Date

May 12 , 1909

Mar. 27, 1913

July 11 , 1915

May 18, 1916

June 12 , 1917

Apr. 3, 1918

May 1, 1956

Discharge 

(.cfs)

tie, 100

*28,400

*8,810

14,100

*21,700

11,100

11,700

Gage height 

(feet)

*9.1

til. 7

$6.9

$8.6

tlO.6

$7.65

8.33

Minimum

Date

Aug. 22, 1909

Sept. 30, 1913

June 5 , b , 7,

1915

Sept. 19, 1916

Nov. 21, 1916

July 24, 1918

July 3, 1956

Discharge 

(cfs)

t268

168

252

275 *360

302

a375

Gage height 

(feet)

2.15

2.05

2.15

2.2

2.35

2.25

2.58

* Revised.

t Not previously published.

t Prom graph based on gage readings.

a Minimum daily, 379 cfs July 3, 1956.

1907-56: Maximum discharge, 28,900 cfs Dec. 31, 1948 (gage height, 12.14 ft); minimum, 112 cfs July 26, 1934 (gage height, 1.96 ft); minimum daily, 114 cfs July 26, 1934.

Remarks. Records excellent except those for periods of ice effect, which are fair. Appreciable regulation by Indian Lake Reservoir (see p. 48) and other reservoirs above 

station.

Revisions. WSP 621: Drainage area. Revised figures of discharge, in cubic feet per

second, for the water years 1908-18, 1920, 1922, superseding those published in WSP 241, 

261, 281, 301, 321, 351, 381, 401, 431, 451, 471, 501, 541, are given herein. Complete 

daily tables are given for water years 1909, 1916-18, but only revised figures are given 

for the other water years.

Date

1907

Dec. 6

7

8

1908

Jan. 6

7

ZZ

23

24

25

26

21

30

31

Feb. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

1909

Dec. 1

2

3

4

5

6

7

8

9

10

11

Discharge

550

600

650

1,800

1,600

800

800

800

800

800

800

750

750

750

750

750

,000

,200

,200

,200

,100

,100

,200

,100

,100

,100

1,100

600

550

550

600

550

460

400

340

300

320

380

Date

1909-Con.

Dec. 12

13

14

15

16

17

18

19

20

21

22

25

2t

25

26

27

28

29

30

31

1910

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Discharge

340

300

400

380

340

340

320

320

320

300

300

300

300

300

300

300

300

300

300

300

300

300

300

300

300

300

300

300

300

£80

£80

£80

£80

280

£80

£80

280

280

280

300

Date

1910-Con.

Jan. 21

££

£3

£4

25

£6

£7

£8

29

30

31

Mar. 1

£

3

4

5

6

7

8

9

10

11

1£

13

14

15

16

17

18

19

20

21

22

25

30

Dec. 3

4

5

6

7

8

9

Discharge

400

900

2.0OO

2,000

1,600

1,100

900

800

70O

600

550

£,200

,400

,000

,000

,000

,40O

,400

,600

,£00

,600

,£00

,000

,400

,£00

,000

,700

,600

,500

,400

,400

,500

,700

,970

8,680

750

750

700

650

650

800

800

Date

1910-Con.

Dec. 10

11

12

13

14

15

16

17

18

19

£0

£1

£2

£3

£4

25

£6

27

28

£9

30

31

1911

Apr. 1

2

3

4

5

6

8

9

10

14

15

1912

Jan. 6

7

8

9

10

Discharge

800

800

700

600

600

600

600

550

550

550

550

550

550

550

550

550

550

550

550

550

550

550

1,400

1,£00

1,£00

1,100

1,100

1,100

£,920

£,740

2,570

3,200

4, £00

700

700

950

1,100

900
HUDSON RIVER BASIN 

Hudson River at North Creek, N. Y. Continued

Bevised figures of discharge, in cubic feet per second, 1908, 1910-15, 

1920, 1922--Continued

51

Date

1912-Con. 

Jan. 11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Apr. 1 

2

4 

May 17

1913 

Feb. 11 

12 

13 

14 

15 

16

Discharge

600 

550 

550 

550 

500 

500 

850 

950 

900 

850 

850 

850 

800 

800 

800 

750 

750 

750 

800 

eon 

850 

2,800 

2,800 

2,600 

2,600 

3,400 

4,090

1,040 

1,220 

1,220 

1,220 

1,220 

1,350

Date

1913-Con. 

Feb. 17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28

1914 

Jan. 1

3 

4 

5 

B 

7 

8 

9 

10 

11 

12 

July 2 

5 

6 

Nov. 8 

9 

Dec. 15 

16 

17 

18

Discharge

1,220 

1,160 

1,100 

1,100 

1,040 

1,100 

1,160 

1,160 

1,220 

1,100 

940 

940

500 

500 

550 

550 

600 

700 

800 

800 

750 

750 

600 

500 

3,480 

780 

685 

520 

437 

385 

380 

380 

360

Date

1914-Con. 

Dec. 19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30

1915 

Jan. 3 

4 

5 

6 

7 

8 

13 

14 

25 

26 

Feb. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

12

Discharge

360 

600 

650 

650 

400 

360 

320 

320 

300 

300 

500 

650

750 

800 

750 

950 

1,500 

2,300 

950 

850 

1,100 

900 

600 

650 

650 

700 

800 

850 

850 

800 

700 

650 

500

Date

1915-Con. 

Feb. 13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28

1920 

Jan. 12 

13 

Feb. 19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

Mar. 1 

2

1922 

June 18

Month

December 

January 1

1907..... .............

Water year 1907-8. ...........

December 

Calenda 

January 1

1909. .................

f year 1909 

910

March. . . ........ .... ....

Water y

December 

Calenda

January 1

ear 1909-10

r year 1910 

911

April. ................. . ....

Water j 

Calenda

January : 

February

rear 1910-11 

r year 1911

912

May. ...... --- - - ............

Water j 

Calenda

February 

Water j 

Calends

January 1

Water j

November 

December 

CalendE

January ]

Water 3 

January ]

ear 1911-12 

r year 1912

rear 1912-13 

r year 1913 

914

rear 1913-14 

1914

r year 1914 

915

rear 1914-15 

920

Water j 

CalendE

June 1922 

Water 3 

CalendE

rear 1919-20 

r year 1920

rear 1921-22 

r year 1922

Maximum

4,340

3,060 

4,030 

14,200

600 

14,700

2,000 

900 

9,430 

9,790

800 

9,790

750 

700 

1,600 

8,330

11,600 

11,600

1,100 

1,100 

1,900 

12,900 

8,050 

12,900 

12,900

1,770 

23,900 

23 , 900

800 

3,480 

17,300

2,180 

2,180 

17,300

2,300 

3,200 

7,960

1,400 

1,000 

5,120 

10,000 

10,000

8,040 

20,900 

20,900

Minimum

546

750 

750 

418

300

272

280 

340 

1,400 

280

550 

280

380 

500 

650 

1,100 

188 

188

500 

850 

600 

2,600 

1,620 

418 

460

790 

193 

193

442 

520 

261

437 

300 

261

520 

460 

252

950 

650 

650 

230 

230

296

271 

271

Mean

1,960

1,270 

1,830 

2,150

368

1,750

560 

t570 

4,070 

tl,440

633 

tl,510

t527 

t682 

t774 

3,730 

tl,190 

tl,280

 781 

t972 

t866 

6,080 

3,730 

tl,650 

tl,690

1,140 

1,750 

1,640

631 

1,050 

1,360

787 

841 

1,300

1,040 

902 

1,150

1,140 

817 

1,830 

1,500 

1,510

2,530

1,850 

1,710

Per square 

mile

2.47

1.60 

2.31 

2.71

.465 

2.21

.707 

.720 

5.14 

1.82

.799 

1.91

.665 

.861 

.977 

4.71 

1.50 

1.62

.99 

1.23 

1.09 

7.68 

4.71 

2.08 

2.13

1.44 

2.21 

2.07

.797 

1.32 

1.72

.994

1.06 

1.64

1.31 

1. 14 

1.45

1.44 

1.03 

2.31 

1.89 

1.91

3.19 

2.34 

2.16

Discharge

480 

460 

480 

550 

700 

800 

750 

700 

650 

600 

550 

750 

1,250 

2,000 

3,000 

3,200

1,100 

1,100 

800 

800 

750 

750 

750 

750 

700 

700 

700 

700 

650 

650 

650

1,460

Runoff in 

inches

2.85

1.85 

2.49 

37.04

.54

30.03

.81 

.75 

5.92 

24.70

.92 

25.92

.77 

.90 

1.13 

5.25 

20.35 

21.97

1.14 

1.32 

1.26 

8.56 

5.43 

28.35 

29.08

1.50 

30.06 

28.17

.92 

1.52 

23.34

1.11 

1.22 

22.34

1.52 

1.19 

19.72

1.66 

1.11 

2.66 

25.83 

26.02

3.56 

31.64 

29.35

t Partly estimated.
HUDSON RIVER BASIN

Hudson River at North Creek, N. Y. Continued 

Discharge, In cubic feet per second, water year October 1908 to September 1909

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

602

602

578

578

554

538

538

523

516

509

546

546

538

530

509

495

495

495

495

474

467

467 

467

448

456

448

554

594

628 

664

664

16,498

532

0.672

0.77

Nov.

637

570

516

502

502

495

448

442

442

454

481

554

594

578

754

1,060

664

610

554

488

495

442 

467

454

481

664

1,030

1,500

1,110 

1,000

18,788

626

0.790

0.88

Dec.

840

763

637

657

602

495

578

646

602

467

495

637

619

602

578

550

550

550

550

550

550

500 

500

500

460

460

460

460

440 

440

420

17,138

555

0.698

0.80

Jan.

420

420

440

440

440

600

,000

,400

,610

,920

,550

,400

,100

950

800

650

550

550

500

460

460

550 

700

700

1,600

3,000

3,200

3,200

3,000 

2 , 600

'

58,110

1,230

1.55

1.79

Feb.

1,500

1,200

950

800

700

750

1,100

1,600

1,600

1,500

1,400

1,400

1,500

1,200

1,200

1,200

1,200

1,100

1,100

1,100

2,200

4,400 

6,000

6,500

6,000

5,000

4,200

5,600

-

61,800

2,210

2.79

2.90

Mar.

3.200

2,600

2,400

2,000

1,800

1,600

1,500

1,400

1,200

1,100

1,000

950

900

850

800

750

700

650

600

750

,000

,000 

,000

,000

,000

,000

,000

,000

800 

550

550

56,650

1,180

1.49

1.72

Apr.

550

550

550

550

800

2,200

4,860

7,710

7,560

6,130

4,920

5,520

3,290

12,400

13,600

11,800

10,500

9,970

9,060

10,900

9,790

7,710 

6,900

5,560

4,260

5,950

3,920

4,920

3,680

3,680

177,570

5,920

7.47

8.34

May

4,790

6,130

5,880

5,440

6,430

4,790

5,950

9,140

6,550

8,480

11,700

14,700

8,110

8,050

4,700

4,050

4,260

5,590

4,260

5,290

5,370

4,050 

3,060

2,290

2,370

2,030

1,590

1,580

3,550

2,540

lj_580

159,640

5,150

6.50

7.50

June

1,400

1,580

1,710

1,720

1,580

2,160

2,450

2,290

1,890

1,450

2,430

2,500

1,520

1,580

1,500

1,010

990

1,100

2,370

1,250

1,550

970 

790

718

682

610

530

495

467

430

40,702

1,360

1.72

1.91

July

388

310

340

370

382

320

330

376

340

315

448

610

682

718

745

745

754

772

1,100

1,100

1,300

1,380 

1,170

1,100

850

646

646

586

602

790

21,045

679

0.857

0.99

Aug.

736

709

675

637

646

646

763

950

950

940

940

940

940

920

910

980

980

940

570

346

290

272 

290

448

910

950

950

940

930

930

23,956

773

0.976

1.12

Sept.

910

890

890

890

900

860

840

850

850

830

830

SIC

810

790

790

800

765

736

781

781

718

745 

745

790

781

736

718

790

790

81O

24,204

807

1.02

1.14

Calendar year 1908: Max 14,200 Mln 418 Mean 1,750 Cfsm 2.21 In. 29.99

Water year 1908-9: Max 14,700 Mln 272 Mean 1,740 Cfsm 2.20 In. 29.86

Note. Stage-discharge relation affected by Ice Dec. 15 to Jan. 7, Jan. 12 to Apr. 6.

Discharge, In cubic feet per second, water year October 1915 to September 1916

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

790

745

700

700

940

1.910

1,910

1,480

1,100

940

790

700

940

890

790

790

840

840

840

1,160

1,350

1,220

890 

610

610

550

1,100

1,160

1,160

1,100 

1,100

50,625

988

1.25

1.44

Nov.

1,100

1,040

,040

,040

,040

,100

,040

990

990

990

990

990

990

940

1,040

,760

,550

,420

,420

,840

,910

,550

,550 

,160

990

840

750" 790

990

1,160

34,840

1,160

1.46

1.64

Dec.

1,550

1,100

990

790

790

790

700

610

610

570

550

750

800

800

800

800

750

750

500

460

440

440

420 

440

500

745

2,090

1,750

1,250

1,100 

990

25,425

820

1.04

1.19

Jan.

950

950

1,000

1,000

950

950

900

850

850

900

950

950

900

850

850

800

750

750

750

800

1,100

1,300

1,600 

1,900

2,000

2,100

2,200

4,010

4,660

4,550 

5,810

46,660

1,510

1.91

2.19

Feb.

5,600

3,300

2,900

2,600

2,200

1,700

1,400

1,200

1,000

950

900

850

800

800

800

,200

,400

,400

,300

,300

,300

,600

,600 

,500

,500

,100

,900

,800

,700

46,600

1,610

2.03

2.19

Mar.

1,600

1,500

1,500

1,200

1,100

1,500

1,500

1,400

1,400

1,400

1,500

1,600

1,600

1,600

1,600

1,500

1,500

1,500

1,400

1,500

1,400

1,400

1,400 

1,500

1,500

1,620

2,060

1,880

2,140

2,530 

5,270

49,900

1,610

2.05

2.34

Apr.

4,010

5,840

5,360

4,660

3,810

3,230

3,230

2,700

2,530

2,060

2,060

2,370

2,530

2,550

2,210

2,530

3,610

4,440

3,250

4,010

5,810

5,810

5,600 

6,090

4,660

7,400

6,860

6,090

6,600

5,810

121,680

4,060

5.13

5.71

May

3,420

3,230

4,440

4,010

4,890

4,010

2,870

2,870

2,060

2,530

1,760

4,220

1,550

1,220

1,480

7,400

6,340

15,500

10, 600

6,860

7,130

4,890

5,420 

6,860

4,440

4,010

4,010

2,550

2,210

5,840 

2 ,870

157,470

4,450

5.59

6.46

June

,570

,810

,610

,760

,480

,420

,350

,100

,100

,220

,220

,220

,100

,100

990

940

,160

,550

,760

,840

,980

,480

1,350 

1,220

1,100

1,040

940

890

990

890

43,980

1,470

1.86

2.07

July

890

790

790

890

890

840

890

745

700

610

610

530

790

1,280

1,550

1,350

1,220

890

700

700

530

790

790 

890

840

745

610

610

570

700 

790

25,320

817

1.03

1.19

Aug.

790

700

655

655

790

890

890

890

990

890

890

890

890

890

790

790

790

610

890

890

890

990

1,100 

1,100

1,100

990

990

990

890

790 

890

27,180

877

1.11

1.28

Sept.

940

990

890

890

890

890

890

890

890

840

840

840

840

840

990

990

940

446

404

940

940

990

1,420 

1,350

1,100

990

610

530

530

610

26,140

871

1.10

1.23

Calendar year 1915: Max 7,960 Mln 252 Mean 1,210 Cfsm 1.55 In. 20.68

Water year 1915-16: Max 13,500 Mln 404 Mean 1,680 Cfsm 2.12 In. 28.93

Note. --Stage-discharge relation affected by Ice Dec. 11 to Jan. 27, Feb. 1 to Mar. 25.
HUDSON RIVER BASIN 53

Hudson River at North Creek, N. Y. Continued 

Discharge, in cubic feet per second, water year October 1916 to September 1917

Day

1

2

3

4

5

6 -

7

6

9

10

11

12

13

14

15

16

17

16

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

700

790

940

1,040

940

690

690

890

890

890

640

790

1,040

790

655

390 

390

390

700 

790

690

990

890

790

610

610

530

460

610

745

700

23,460

757

0.956

1.10

Nov.

790

790

790

690

940

890

790

700

700

700

1,100

1,420

1,160

690

1,350

1,220 

1,100

640

570 

446

404

446

700

2,060

2,670

2,210

1,690

1,620

1,620

1,960

33,676

1,120

1.41

1.56

Dec.

2,670

2,700

2,210

1,690

1,460

1,980

2,060

1,910

1,620

1,620

1,690

1,550

1,350

1,100

790

700 

655

610

650 

600

600

750

750

750

700

700

650

650

650

600

600

37,635

1,210

1.53

1.77

Jan.

600

600

700

600

750

550

550

550

550

750

750

700

700

750

750

700 

700

700

650 

650

650

700

650

650

650

650

650

650

650

650

700

20,700

666

0.643

0.97

Feb.

"900 750

900

900

900

650

850

650

850

650

800

600

600

600

900

900 

900

650

650 

650

650

850

650

600

600

600

600

650

-

23,650

645

1.07

1.11

Mar.

600

600

600

600

750

750

750

600

600

750

600

750

750

750

750

600 

750

700

Too

750

750

650

900

1,000

1,300

1,600

2,600

4,440

4,440

3,420

3,050

39,650

1,290

1.63

1.67

Apr.

2,670

5,600

7,400

7,400

6,660

6,340

4,690

3,610

2,670

2,530

1,690

1,910

1,760

1,460

1,350

1,160 

1,160

1,910

1,220 

5,640

9,700

10,900

9,400

7,660

5,120

5,600

3,050

2,700

5,120

4,660

133,760

4,460

5.63

6.26

May

2,670

4,220

3,610

4,890

3,050

3,610

2,670

2,670

1,760

3,050

1,420

1,350

2,670

2,530

4,010

3,610 

1,160

1,100

1,040 

3,610

1,220

2,370

2,530

3,420

1,690

4,440

2,060

1,640

1,690

4,440

5,560

66,760

2,800

3.54

4.07

June

6,600

1,350

2,670

2,700

2,700

2,670

2,700

2,530

3,050

2,370

3,610

16,900

14,100

9,400

6,660

6,860 

7,130

5,600

4,660 

3,230

3,420

3,230

2,700

2,370

1,960

3,230

1,640

1,960

1,260

2 ' 140

132,460

4,420

5.58

6.22

Calendar year 1916: Max 13,500 Min 390 Mean 1,690 Cfsm 2.13

July

2,670

2,530

2,700

1,910

1,550

1,460

1,420

1,160

640

790

745

790

790

745

655

530 

495

570

745 

690

790

655

570

570

610

1,100

1,640

940

610

495

460

32,645

1,060

1.34

1.54

Aug.

790

790

700

655

610

655

655

690

940

1,220

1,100

990

990

990

990

1,160 

1,040

1,160

790 

700

700

790

690

990

1,100

990

700

700

790

690

690

27,245

679

1.11

1.28

Sept.

990

1,040

990

990

690

640

610

460

404

530

530

530

610

655

700

745 

690

690

690 

690

990

1,220

1,100

1,040

990

690

940

690

690

690

24,914

630

1.05

1.17

In. 29.11

Water year 1916-17: Max 16,900 Min 390 Mean 1,690 Cfsm 2.13 In. 26.96

Note.--Stage-discharge relation affected by Ice Dec. 19 to Mar. 27.

Discharge, in cubic feet per second, water year October 1917 to September 1916

Day

1

2

3

4

5

6

7

6

9

10

11

12

13 

14

15

16

17

16

19

20

21

22

23

24

25

26

27

26 

29

30

31

Total

Mean

Cfsm

In.

Oct.

990

1,100

1,100

1,100

990

690

640

790

790

700

745

790

940 

940

690

940

990

1,040

690

990

1,220

1,220

1,100

1,100

1,420

1,620

1,550

1,690 

1,760

2,670

7,400

41,395

1,340

1.69

1.94

Nov.

5,640

4,010

2,870

2,140

1,760

1,460

1,350

1,350

1,260

1,220

890

690

940 

690

495

700

700

700

700

700

655

570

530

530

460

460

460

500 

650

750

36,470

1,220

1.54

1.71

Dec.

750

750

600

600

750

700

700

'650 650

650

900

1,000

1,100 

1,100

1,000

1,000

1,000

1,000

1,000

1,000

950

600

750

750

600

900

900

650 

650

600

800

26,450

653

1.08

1.24

Jan.

750

750

750

750

700

700

700

700

700

700

700

700

750 

750

750

750

750

700

700

700

700

700

650

650

650

650

600

600 

600

600

600

21,450

692

0.674

1.01

Feb.

600

600

600

600

600

600

600

550

550

550

550

550

600 

600

650

650

650

700

700

600

600

650

900

1,000

1,100

1,300

1,400

1,500

21,150

755

0.953

0.99

Calendar year 1917: Max 16,900 Min 404

Mar.

1,400

1,300

1,400

1,400

1,300

1,200

1,100

1,000

950

900

900

1,200

1,400 

1,500

1,400

1,300

1,300

1,400

1,400

1,300

1,400

1,600

2,000

2,600

3,200

4,000

4,600

5,000 

5,000

4,690

4,440

63,960

2,060

2.60

3.00

Apr.

4,690

7,400

10,000

7,660

6,600

4,890

4,690

4,440

4,690

4,440

4,010

3,230

2,670 

2,530

2,700

3,230

4,440

5,360

4,690

4,690

4,010

3,230

6,520

5,600

4,220

4,440

2,060

1,620 

3,230

4,690

140,090

4,670

5.90

6.56

May

6,340

5,360

6,090

3,420

3,050

1,910

1,550

4,660

4,220

2,670

3,610

2,060

2,670 

2,060

1,630

4,440

2,130

1,350

1,760

940

700

700

790

990

655

570

790

700 

1,160

790

2,210

72,575

2,340

2.95

3.41

June

610

610

610

5,360

530

3,230

460

1,910

1,550

6,340

2,370

3,050

2,700 

2,370

2,530

1,960

1,220

940

745

570

530

530

530

530

530

530

460

460 

376

2,210

46,373

1,550

1.96

2.16

July

404

610

570

745

790

700

610

530

530

530

610

745

1.640 

1,620

1,620

1,040

940

690

745

610

610

530

330

319

700

790

655

700 

700

790

890

23,693

764

0.965

1.11

Aug.

790

790

790

790

1,160

990

690

790

940

990

1,100

1,100

990 

990

690

840

690

790

890

990

990

890

940

940

890

890

690

690 

690

640

640

26,260

912

1.15

1.33

Sept.

990

1,040

1,100

940

790

790

690

990

1,100

990

990

940

690 

890

700

530

570

610

990

1,100

1,100

990

990

690

690

940

1,620

1,760 

1,690

1,460

30,180

1,010

1.26

1.42

Mean 1,720 Cfsm 2.17 In. 29.40

Water year 1917-18: Max 10,000 Min 319 Mean 1,510 Cfsm 1.91 In. 25.92

Note.--Stage-discharge relation affected by ice Nov. 26 to Mar. 29. 

505690 O - 59 - 5
HUDSON RIVER BASIN 

Hudson River at North Creek, N. Y. Continued

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and dischsrge, in cubic feet per second)

Oct. 1 to Apr. 30 May 1 to Sept. 30

2.9 526

3.5 980

4.0 1,530

5.0 2,960

6.0 4,9OO

7.0 7,450

9.0 14,200

2.5 338

3.0 609

3.5 1,020

4.0 1,560

5.0 2,960

6.0 4,900

7.0 7,450

9.0 14,200

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsra

In.

Oct.

675

646

633

581

544

587

1,000

1,590

1,550

*1,340

1,090

764

600

575

667

1,570

2,640

2,210

1,510

1,100

880

846

854

820

897

990

952

971

906

1,210

5,290

36,488

1,177

-

-

Nov.

5.600

4,000

2,750

2,320

2,060

1,790

1,550

1,380

1,250

1,110

1,030

990

925

934

1,040

*1,080

1,510

1,730

1,470

1,200

1,060

1,080

1,240

1,170

1,120

940

880

820

720

680

45,429

1,1,14

-

-

Dec.

660

640

640

667

820

840

760

740

700

620

600

569

*550

538

520

480

460

500

450

410

390

380

520

700

760

700

660

620

600

600

580

18,674

602

-

-

Jan.

560

580

600

640

680

720

600

620

780

860

820

740

680

780

860

880

840

800

*760

740

760

740

720

700

680

660

680

700

680

660

660

22,180

715

-

-

Feb.

640

640

660

720

760

700

660

660

660

680

720

760

700

680

660

*640

660

720

760

700

660

640

620

640

760

740

700

660

640

19,840

684

_

-

Mar.

640

680

740

720

680

660

660

680

740

820

800

760

720

720

780

800

800

780

760

740

760

760

740

720

700

700

700

*680

680

680

680

22,480

725

-

-

Apr.

660

660

680

740

1,080

1,900

2,500

2,690

2,600

2,600

2,500

2,900

3,400

3,480

3,430

*4,070

5,920

5,480

4,460

3,520

2,910

2,500

2,240

1,990

1,810

1,810

1,660

2,840

6,690

9,760

89,480

2,983

-

-

May

»11,100

8,790

6,780

6,200

5,900

5,150

4,440

3,830

3,230

3,080

- 3,680

3,620

3,520

3,520

3,350

3,080

2,880

2,560

2,170

1,920

1,730

1,550

1,480

1,570

1,440

1,210

1,410

2,700

3,060

2,990

4,170

112,110

3,616

-

-

June

,250

,660

,130

,750

,380

,070

,760

,490

,310

,420

,850

,050

,720

* ,400

,140

977

841

729

636

565

529

534

540

546

534

662

505

424

404

599

41,205

1,374

_

-

July

394

*394

379

546

636

800

841

692

830

948

767

677

723

1,230

1.290

1,100

885

729

616

529

477

477

527

977

*692

650

643

623

596

590

729

21,987

709

_

-

Aug.

767

759

751

736

729

721

699

1,020

968

867

850

832

824

816

816

808

792

792

808

792

707

670

650

663

657

650

643

629

623

636

699

23,374

754

-

-

Sept.

814

2.140

1,690

1,080

759

603

904

986

867

744

657

729

832

832

832

876

948

876

670

904

1,140

958

800

*775

816

832

792

736

699

684

26,975

899

-

-

Calendar year 1955: Max 11,700 Min 322 Mean 1,415 Cfsm 1.79 In. 24.26

Water year 1955-56: Max 11,100 Min 379 Mean 1,312 Cfsm 1.66 In. 22.54

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Nov. 20-23, Nov. 25 to Dec. 2, Dec. 6-11, Dec. 15 

to Apr. 4, Apr. 6, 7, 9-13.
HUDSON RIVER BASIN 

Schroon River at Riverbank, N. Y.

55

Location. Lat 43°36'40", long 73°44'10", on right bank at upstream side of highway bridge 

at Riverbank, Warren County, three-quarters of a mile upstream from Alder Brook, 4 miles 

south of Horicon, and 9 miles downstream from Schroon Lake.

Drainage area.--527 sq mi.

Records available.--September 1907 to September 1956.

Gage. Water-stage recorder. Datum of gage is 699.31 ft above mean sea level, datum of 

1929. Prior to Oct. 3, 1925, chain gage at same site and datum.

Average dlscharge.--49 years, 816 cfs.

Extremes.--The figures of maximum and minimum discharges for the water years 1908-14,and 

1956, some of which have been revised, superseding those published in the water-supply 

papers indicated, are given in the following table:

WSP

_

-

281

-

-

351

381

-

Water

year

1908

1909

1910

1911

1912

1913

1914

1956

Maximum

Date

Apr. 12, 1908

Apr. 16, 1909

Apr. 1, 1910

Apr. 17, May 3,

1911

Apr. 19,20,1912

Mar. 28, 1913

Apr. 22, 1914

May 2, 1956

Discharge 

(cfs)

*4,600

*8,250

t5,880

t3,400

J6.120

*10, 400

*7,500

3,640

Gage height 

(feet)

t6.40

t8.67

t7.25

tS.50

t7.40

tlO.70

ta9.25

6.63

Minimum

Date

Sept. 27, 1908

Nov. 8, 1908

Oct. 17, 1909

Aug. 25, 26, 27,

Sept. 8, 1911

July 4. 1912

(M

Oct. 1, 1913

Aug. 28, 29, 30,

1956

Discharge 

(cfs)

*56

t39 *32

t70

t!05

*61

79

103

Gage height 

(feet)

tO. 98

i.92

.85

1.05

tl.20

tl.10

1.20

1.30

* Revised.

t Prom graph based on gage readings.

t Not previously published.

a Backwater from log Jam.

b Occurred on several days in September 1913.

1907-56: Maximum discharge, 12,100 cfs Mar. 21, 1936 (gage height, 12.18 ft, from 

floodmarks); minimum, 32 cfs (revised) Oct. 17, 1909 (gage height, 0.85 ft).

Remarks. Records excellent except those for periods of ice effect, which are good. Slight 

regulation by Schroon Lake and other lakes.

Revisions. WSP 741: Drainage area. Revised figures of discharge, in cubic feet per second, for the water years 1908-15, superseding those published in WSP 261, 281, 301, 321, 

351, 381, and 401, are given herein. Complete tables of discharge are given for the 

water years 1908-14, but only revised figures are given for the water year 1915.

Date

1914

Dec. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Discharge

277

296

376

376

397

335

355

376

376

355

335

335

335

315

300

300

Date

1914-Con.

Dec. 17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge

300

280

280

260

260

240

240

240

220

220

220

220

200

200

200

Date

1915

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Discharge

200

200

190

190

190

190

240

320

400

400

400

380

380

380

360

360

Date

1915-Con.

Jan. 17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge

360

400

550

700

700

700

700

750

700

700

700

650

550

550

550

Month

Calendar year 1914. ..........

Calendar year 1915. ..........

Maximum

7,250

2,150

Minimum

99

125

Mean

^91

708

641

Per square 

mile

1.34

1.22

Runoff in 

inches

18.23

16.51
56 HUDSON RIVER BASIN

Schroon River at Riverbank, N. Y.~Continued 

Discharge, in cubic feet per second, water year October 1907 to September 1908

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

522

485

476

441

467

432

467

618

643 

721

694

668

618

608

608

578

593

568

545

531

522

513

499

485

485

236

432

568

593

608 

668

16,892

545

1.03

1.19

Nov.

776

868

1,080

868

1,570

1,570

2,050

3,300

5.860 

3,700

3,400

2,800

2,270

2,050

1,570

1,570

1,240

1,470

933

1,040

913

933

849

836

788

668

748

721

748

836

46,025

1,530

2.90

3.25

Dec.

806

776

748

824

776

776

721

658

694 

668

568

788

1,200

1,290

1,310

1,290

1,290

1,240

1,200

1,040

1,040

933

1,080

1,290

1,570

1,760

1.850

1,780

al,730

al,670 

al,780

35, 126

1,130

2.14

2.48

Calendar year 1907: Max

Jan.

1,780

1,670

1,570

,470

,340

,200

,200

,080

,000 

966

950

933

933

868

800

748

750

776

800

800

800

776

750

750

750

750

721

700

694

Too

700

29,725

959

1.82

2.10

Feb.

700

700

700

650

650

650

650

650

650 

650

650

650

650

650

600

600

1550

800

900

1,000

1,100

1,100

1,100

1,000

1,000

950

900

850

800

22,600

779

1.48

1.59

Min -

Mar.

'55o~ 800

950

950

950

850

850

836

836 

966

1,040

966

966

1,000

1,040

1,160

1,120

1,120

1,160

1,200

1,160

1,080

1,200

1,290

1,430

1,470

1,780

1,570

2,210

3,400 

5,_640

39,840

1,290

E.45

2.81

Apr.

3,640

3,460

3,340

3,040

2,740

2,620

2,680

2,800

3,460 

3,700

4,120

4.480

4,360

3,940

3,760

3,460

3,160

3,040

2,920

2,560

2,440

2,330

2,100

1.990

2,210

2,330

2,680

3,400

4,120

4,060

94,940

3,160

6.00

6.70

Mean -

May

4,120

4.500

4,240

4,000

3,760

5,460

3,280

5,640

5,940 

5,880

3,640

3,280

3,220

5,100

2,860

2,800

2,860

2,800

2,560

2,270

1,990

1,850

1,850

1,670

1,620

1,470

1,830

1.580

1,380

1,880 

1,470

86,360

2,790

5.29

6.09

June

1,240

1,290

1,160

1,080

1,470

1.520

900

776

1,040 

743

522

1,290

1,080

556

499

545

522

476

856

748

836

776

748

643

748

721

668

415

512

583

24,723

824

1.56

1.74

July

806

593

595

595

590

424

522

499

411 

390

590

150

370

350

331

242

167

143

118

156

130

130

105

130

145

118

143

118

118

145 

105

9,001

290

0.550

0.64

Aug.

95

105

118

105

143

128

103

115

91 

140

209

153

128

115

115

91

115

115

103

128

128

115

91

115

128

140

153

153

140

140 

153

5,869

125

0.257

0.27

Sept.

155

128

128

140

155

128

155

153

155

140

128

140

115

153

256

273 256-

206

125

100

178

221

206

206

192

88

62

178

256

221

4,969

166

0.515

0.55

Cfsm - In. -

Water year 1907-8: Max 4,480 Min 62 Mean 1,130 Cfsm 2.14 In. 29.21

a No gage-height record; discharge estimated on basis of record for adjacent days. 

Note..--Stage-discharge relation affected by ice Dec. 4-6, Jan. 6, 7, 11, 15, 17, 19-21, 25-26, 28, 

Jan. 30 to Mar. 7. Bactorater from logs June 19-27, June 50 to July 4., July 6.

Discharge, in cubic feet per second, water year October 1908 to September 1909

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

51

Total

Mean

Cfsm

In.

Oct.

178

221

110

77

206

192

206

192

178

151

95

206

178

178

206

192

100

62

178

178

178

164

151

151

56

56

178

236

236

235 

204

5,127

165

0.313

0.36

Nov.

57

184

283

249

266

200

57

39

252

232

232

216

216

200

169

216

200

200

200

184

184

155

200

169

200

216

200

232

216

232

5,836

195

0.370

0.41

Dec.

232

216

200

216

200

195

190

257

257

257

218

218

202

255

202

218

255

202

218

172

202

187

202

187

159

172

144

159

159

144 

159

6,150

198

0.376

0.43

Jan.

160

160

156

a!78

198

a255

276

a312

350

550

590

3382

570

a560

340

320

a500

500

a280

280

280

351

390

454

452

390

a580

500

600

650 

650

10,752

347

0.658

0.76

Feb.

a650

650

650

600

a600

650

a650

668

a650

650

a650

673

700

a710

726

a765

812

a812

812

973

1,130

1,090

1,210

1,580

1,630

2.250

1,890

1,890

26,701

954

1.81

1.88

Calendar year 1908: Max 4,480 Min 39

Mar.

1.890

1,630

1,480

1,440

1,500

1,170

1,130

1,170

1,210

1,390

973

1,210

1,130

1,050

1,010

973

907

842

812

812

726

726

'673 673

726

849

818

849

881

915 

915

52,276

1,040

1.97.

2.28

Apr.

946

1,060

1,140

1,140

1,490

1,490

2,120

3,730

4,700

4,750

4,480

5,990

3,860

4,560

7,510

8.250

7,690

7,510

7,060

6,720

6,590

6,020

5,410

4,700

4,200

5,730

5,300

3,060

2,760

2,470

125,836

4,190

7.95

8.88

Mean 910

May

2,350

2,290

2,470

2,580

2,470

2,550

2,470

2,780

2,840

2,840

5,380

4.040

4,040

3,800

5,500

3,440

5,500

5,440

3,200

3,140

2,960

2,780

2,600

2,300

2,080

2,080

1,140

1,140

1,230

m81,450

2,650

4.99

5.75

June

1,030

920

920

855

1,100

1,520

1.760

1,710

1,500

1,500

1,460

1,360

1,180

1,320

1,250

1,320

855

1,060

966

900

933

868

1,040

966

868

836

776

966

836

836

53,191

1,110

2.11

2.34

Cfsm 1.73

July

806

'8T56

721

668

645

618

593

545

522

476

390

432

452

390

390

350

312

153

143

184

130

118

130

130

105

105

118

93

95

118 

105

10,819

349

0.662

0.76

Aug.

93

93

81

150

150

130

145

95

118

118

150

105

105

105

93

130

105

118

105

105

93

81

118

130

105

105

105

95

95

93

105

3,351

108

0.205

0.24

Sept.

93

81

105

81

81

81

93

95

81

81

93

81

143

150

118

130

150

143

156

130

130

118

118

130

150

105

105

184

T56

156

5,456

115

0.218

0.24

In. 23.49

Water year 1908-9: Max 8,250 Min 39 Mean 945 Cfsm 1.79 In. 24.53

a No gage-height record; discharge estimated on basis of record for adjacent days. 

Note. Stage-discharge relation affected by Ice Dec. 6 to Jan. 2, Jan. 14-21, Jan. 27 to Feb. 7, 

Feb. 9-11.
HUDSON RIVER BASIN 

Schroon River at Riverbank, N. Y. Continued

57

Discharge, in cubic feet per second, water year October 1909 to September 1910

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

130

93

143

143

143

143

156

130

130

118

130

70

130

184

T84

81

32

70

50

60

130

130

130

130

118

118

130

130

130

81

70

3,617

117

0.222

0.26

Nov.

130

170

184

184

170

170

81

143

170

184

170

156

170

93

156

184

227

198

184

184

184

184

198

184

212

276

294

294

331

331

5,796

193

0.366

0.41

Dec.

294

276

276

259

259

242

240

220

220

200

190

190

180

180

180

170

170

170

160

160

160

160

160

150

Tso

a!50

150

150

150

150

150

5,916

191

0.362

0.42

Jan.

150

T50

150

150

150

150

150

150

150

150

150

150

150

150

150

150

150

150

150

150

160

220

240

260

300

340

360

380

400

400

400

6,460

208

0.395

0.46

Feb.

400

380

380

380

380

380

380

380

380

380

360

360

360

360

360

360

360

360

360

360

360

360

360

360

540

340

440

500

-

10,480

374

0.710

0.74

Mar.

600

750

900

1,000

1,200

1,430

1,650

1,910

2,210

2,160

2,240

2,190

2,080

1,910

1,780

1,670

1,570

1,470

1,310

1,270

1,220

1,220

1,340

1,590

2,210

2,940

3,380

3,870

3,020

4,870

5,420

62,380

2,010

3.81

4.40

Apr.

5.850

5,770

5,320

4,780

4,280

3,900

5,740

5,540

3,340

3,040

2,500

1,990

2,160

1,990

1,880

1,760

1,650

1.400

1,550

1,700

1,900

2,000

1,900

1,900

1,800

1,700

1,800

1,700

1,700

1,600

80,120

2,670

5.07

5.65

May

1,600

1,600

1,600

1,600

1,600

1,700

1,700

1,700

1,700

1,600

1,600

1,500

1,500

1,500

1,400

1,400

1,400

966

966

955

981

836

915

1,160

1,200

1,500

1,500

1,700

1,600

1,900

2.000

44,855

1,450

2.75

5.17

June

2.470

2,270

2,000

1,840

1,750

1,840

1,800

2,050

2,050

2,000

1,840

1,840

1,670

1,400

1,200

1,240

1,200

1,120

1,080

1,000

966

953

868

856

776

694

806

806

856

748

41,909

1,400

2.66

2.96

July

694

259

226

259

608

499

499

452

452

350

550

226

242

242

210

226

178

194

178

178

164

149

194

156

149

156

149

149

156

122

97

8,065

260

0.495

0.57

Aug.

136

164

136

350

210

178

164

178

178

164

178

164

149

122

T64

178

164

164

164

149

149

164

226

242

226

210

178

194

226

210 

276

5,755

1C6

0.353

0.41

Sept.

531

350

590

350

350

590

590

411

590

570

531

550

590

194

164

178

550

351

551

512

294

512

294

294

370

370

411

522

499

452

10,451

548

0.660

0.74

Calendar year 1909 : Max 8,250 Min 32 Mean 940 Cfsm 1.78 In. 24.22

Water year 1909-10: Max 5,830 Mln 32 Mean 783 Cfsm 1.49 In. 20.19

a No gage-height record; discharge estimated on basis of record for adjacent days. 

Note.--Stage-discharge relation affected by ice Dec. 7 to Mar. 5. Backwater from 1 

May 16, May 26 to June 1.

Discharge, in cubic feet per second, water year October 1910 to September 1911

gs Apr. 20 to

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

51

Total

Mean

Cfsm

In.

Oct.

452

590

452

411

411

411

590

570

550

570

370

390

570

550

550

294

590

590

570

550

512

531

294

312

331

551

331

390

411

350

411

11,395

368

0.698

0.80

Nov.

411

452

390

411

476

454

476

476

476

476

476

454

411

454

411

390

411

432

452

512

590

590

590

294

550

550

276

312

276

294

11,985

399

0.757

0.85

Dec.

¥60" 260

240

240

240

220

220

220

200

200

200

180

178

180

160

160

160

140

242

242

226

210

210

200

200

190

190

180

180

180

170

6,278

203

0.585

0.44

Jan.

180

295

350

540

340

320

520

390

522

476

460

440

420

420

400

400

580

580

580

580

560

560

560

340

540

540

340

340

320

320

320

11,333

366

0.694

0.80

Feb.

520

520

520

520 500'

500

500

500

500

500

500

280

280

280

280

280

280

280

260

260

260

260

260

260

260

260

240

240

-------

7,900

282

0.555

0.56

Mar.

240

240

240

240

240

240

240

240

240

220

220

226

259

276

531

540

300

280

259

312

351

512

512

500

280

276

412

499

499

545

568

9,517

507

0.585

0.67

Apr.

568

499

618

595

618

749

900

966

966

1,290

1,470

1,780

2,000

2,100

2,920

5,280

5.400

5,280

5,280

5,160

3,160

5,040

2,920

2,800

2,800

2,800

2,800

5,040

5,040

5,040

65,877

2,150

4.04

4.51

May

5,040

5,040

5.400

5,280

2,800

2,560

2,100

1,890

1,890

1,780

1,570

1,470

1,380

935

955

955

875

875

935

935

620

645

675

815

1,060

675

955

"572 550

550

815

43,935

1,420

2.69

3.10

June

495

595

572

350

645

815

815

875

8l5

755

255

3T5

815

815

815

815

875

645

700

694

645

645

595

454

476

499

522

476

454

45Z

18,748

625

1.19

1.52

July

242

226

212

411

411

411

590

242

156

212

170

145

150

130

143

105

TT8

150

156

156

156

143

130

170

145

150

145

145

156

118

150

5,856

189

0.559

0.41

Aug.

130

TsS

118

118

118

105

118

118

118

118

118

93

105

93

93

93

95

105

105

95

95

95

81

81

70

70

70

81

95

81 

81

5,076

99.2

0.188

0.22

Sept.

105

105

105

86

93

93

86

86

150

198

170

184

212

ITS

184

184

178

178

184

170

170

178

170

143

151

170

170

156

162

156

4,535

151

0.287

0.52

Calendar year 1910: Max 5,830 Mln 97 Mean 822 Cfsm 1.56 In. 21.19

Water year 1910-11: Max 3,400 Min 70 Mean 544 Cfsm 1.05 In. 14.00
58 HUDSON RIVER BASIN

Schroon River at River-bank, K. Y. Continued

Discharge, In cubic feet per second, water year October 1911 to September 1912

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

156

156

156

170

170

184

212

276

276

259

276

259

242

242

212

212

226

276

432

432

432

432

531

499

522

522

522

499

499

522 

522

10,326

333

0.632

0.73

Nov.

499

522

522

522

499

522

522

485

485

568

545

545

593

643

668

721

668

721

694

721

721

668

694

668

668

643

643

643

643

643

18,299

610

1.16

1.29

Dec.

643

618

618

600

593

568

568

568

568

545

568

568

668

900

966

1,040

1,200

1,290

1,290

1,290

1,200

1,290

1,470

1,570

1,780

1,780

1,780

1,700

1,500

1,400

1,290

32,429

1,050

1.99

2.29

Jan.

1,200

1,200

1,100

1,000

1,000

950

900

850

800

800

750

700

700

650

650

650

600

600

550

550

550

550

500

500

500

480

480

460

440

440 

440

21,540

695

1.32

1.52

Feb.

420

420

420

420

420

400

400

400

400

400

380

380

380

380

380

360

360

360

360

360

360

340

340

340

340

340

340

340

340

10,880

375

0.712

0.77

Calendar year 1911: Max 3,400 Mln 70

Mar.

340

340

320" 320

320

320

320

320

320

320

320

320

320

320

320

440

480

500

550

550

550

550

550

550

550

550

500

618

721

721 

748

13,968

451

0.856

0.99

Apr.

721

1,29"0

1,470

1,470

1,400

1,780

2,440

3,690

5,200

5,200

4,900

4,310

3,900

3,770

3,520

3,770

4,600

5,500

5,960

6,120

5,640

5,200

5,200

5,350

4,900

4,310

3,900

3,520

3,280

2,800

115,111

3,840

7.29

8.12

May

2,440

2,100

1,880

1,700

1,600

1,600

1,900

1,900

1,900

1,700

1,600

1,500

1,400

1,400

1,400

1,800

1,900

1,900

2,000

2,400

2,800

3,280

3,400

3,640

5.770

3; 520

3,280

2,800

2,560

2,330 

2 20O

69,600

2,250

4.27

4.91

June

1.900

1,700

1,600

1,400

1,300

1,200

1,000

950

900

1,000

1,200

1,200

1,100

1,120

1,120

411

668

776

806

748

618

370

476

476

568

568

618

276

198

145

26,410

880

1.67

1.86

Mean 630 Cfsm 1.20

July

143

143

118

105 130"

143

143

151

143

184

156

156

184

156

143

130

130

143

130

156

156

156

143

156

156

156

156

143

156

156 

156

4,577

148

0.281

0.32

Aug.

143

143

143

130

135

130

390

259

370

198

184

198

184

170

156

151

198

156

156

170

170

170

331

276

143

350

198

162

135

125 

118

5,942

192

0.364

0.42

Sept.

130

170

184

170

170

178

184

184

178

143

184

184

170

184

590

350

350

350

350

350

276

118

276

350

350

370

350

242

118

350

7,353

245

0.465

0.52

In. 16.22

Water year 1911-12: Max 6,120 Mln 105 Mean 919 Cfsm 1.74 In. 23.74 .

Note. Stage-discharge relation affected by Ice Dec. 4, 28-30, Jan. 1 to Mar. 27. Backwater from 

logs Apr. 5-8, May 4-20, May 31 to June 13.

Discharge, In cubic feet per second, water year October 1912 to September 1913

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

130 

135

125

130

276

130

350

350

350

350

312

294

356" 118

350

350

312

350

198

212

331

350

350 

454

500

593

836

836

'550" 900 

900

12,122

391

0.742

0.86

Nov.

900 

900

806

776

776

776

836

966

1,200

1,470

1,470

1,470

1,470

1,470

1,570

1,670

ll670

1,570

1,380

1,290

1,290

1,200

1,040 

1,040

1,040

966

966

900

836

336

34, 550

1,150

2.18

2.44

Dec.

776 

748

806

836

900

900

836

1,040

1.120

1,120

1,120

1,040

966

900

836

776

721

721

776

836

836

748

700 

700

650

618

593

618

593

568 

343

25,041

808

1.53

1.77

Jan.

721 

72T

721

836

836

900

900

966

1,120

1,120

900

966

966

966

836

806

836

900

1,120

1,200

1,380

1,470

1.570 

1,570

1,570

1,470

1,470

1,290

1,200

1,120

1,040

33,487

1,080

2.05

2.36

Feb.

1.000 

9SO

850

800

800

750

700

650

650

600

550

550

500

500

480

460

440

420

400

380

380

420

420 

400

380

~5S5 360

380

15,530

555

1.05

1.10

Mar.

400

380

380

360

ISo

360

360

380

400

460

420

500

500

850

850

750

950

1,100

1,300

1,600

1,900

2,400

2,800 

3,040

4,030

6,600

9,150

10. 500

9,250

7,450

5j 890

75,470

2,430

4.61

5.33

Apr.

5.570 

4,770

4,200

3,780

4,060

4,620

4,620

3,920

3,380

3,000

2,400

2,330

2,220

2,220

2,100

1,890

1,890

1,670

1,670

1,380

1,290

1,380

1,290 

1,290

1,290

1.220

1,220

1,220

1,300

1,300

74,290

2,480

4.71

5.24

May

1,370 

1,370

1,370

1,130

1,130

1,060

1,210

925

860

860

772

745

745

690

745

585

585

560

585

610

535

535

610 

860

925

1,060

1,130

1,740

1.840

1,740

1,740

30,622

988

1.87

2.16

June

1.640

1,640

1,550

1,460

1,460

1,370

1,060

860

1,060

990

487

511

487

487

441

464

772

635

925

745

635

355

610

860

800

800

800

800

175

487

25,366

846

1.61

1.79

July

m390

410

332

314

332

230

103

126

121

117

126

121

134

134

121

134

121

99

121

117

117 

121

126

134

99

115" 79

110

99

5,600

181

0.343

0.40

Aug.

95 

103

90

110

154

121

134

117

110

99

103

117

121

110

99

99

99

95

89

103

99

103

99 

89

95

83

89

79

79 

89

79

3,140

101

0.192

0.22

Sept.

83 

79

83

79

75

70

79

70

70

70

70

61

65

61

75

61

65

70

61

89

70 

61

75

75

61

61

"SS 95 

ay

2,149

71.6

0.136

0.15

Calendar year 1912: Max 6,120 Mln 105 Mean 948 Cfsm 1.80 In. 24.50

Water year 1912-13: Max 10,300 Mln 61 Mean 924 Cfsm 1.75 In. 23.82

Note. Backwater from Ice and logs Dec. 23-25, Feb. 1 to Mar. 23.
HUDSON RIVER BASIN 59

Schroon River at River-bank, N. Y. Continued

Discharge, in cubic feet per second, water year October 1913 to September 1914

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

83

112

108

99

99

110

110

108

119

117

99

99

121

126

134

134

121

134

134

186

200

172

172

172

200

215

230

351

472

450

5,319

172

0.326

0.38

Nov.

241

24T

241

259

277

259

259

259

277

315

335

376

376

376

241

376

397

397

397

441

487

511

535

535

560

535

535

535

511

487

11,571

386

0.732

0.82

Dec.

487

487

441

441

441

441

419

441

464

487

560

511

535

535

535

511

511

511

487

441

441

464

441

419

441

464

441

400

380

380

560

14,317

462

0.877

1.01

Jan.

347

495

468

430

410

394

378

378

382

370

362

355

351

349

347

332

321

310

282

256

249

282

256

300

292

321

297

286

276

259

250

10,365

334

0.634

0.73

Feb.

230

3T4

303

320

296

286

296

303

300

296

293

289

289

286

282

282

278

279

282

249

249

293

259

269

236

275

282

269

-

7,885

282

0.535

0.56

Mar. \

278

34T

347

340

328

340

328

347

340

293

256

272

282

259

262

332

296

332

332

332

370

312

332

351

332

351

390

565

668

723

935

11,572

373

0.708

0.82

Apr.

1.580

1,850

2,170

2,170

2,280

2,170

2,060

2,280

3,000

3,380

3,780

3,780

3,640

3,380

3,380

3,380

3,510

3,640

4,200

5,420

7,050

7.250

6,660

6,110

5,760

5,420

5,260

5,100

4,940

5,100

119, 500

3,980

7.55

8.43

May

4.940

4,790

4,200

3,780

3,510

3,250

3,000

2,640

2,400

2,170

1,660

1,380

1,470

1,470

1,560

1,560

1,470

1,470

1,470

1,000

810

1,140

870

870

810

810

810

935

695

565

C C t obo

58,070

1,870

3.55

4.10

June

860

464

441

441

635

441

441

464

662

487

745

800

718

511

860

9Z5

585

560

464

441

160

464

464

419

464

419

120

T5T

376

335

15,357

512

0.972

1.08

July

370

390

410

159

172

159

172

172

159

159

146

146

172

172

159

172

172

172

159

159

159

159

159

159

172

146

172

159

146 

146

146

5,674

183

0.347

0.40

Aug.

138

146

159

146

146

146

141

141

134

136

131

134

136

134

134

121

128

124

131

136

146

141

146

141

131

134

136

119

159

146

172

4,313

139

0.264

0.30

Sept.

159

159

172

159

159

186

159

146

T56

215

246

262

215

246

246

246

262

246

246

230

246

246

230

215

230

230

230

215

200

200

6,387

213

0.404

0.45

Calendar year 1913: Max 10,300 Min 61 Mean 813 Cfsm 1.54 In. 20.95

Water year 1913-14: Max 7,250 Min 83 Mean 741 Cfsm 1.41 In. 19.08

Note. Stage-discharge relation affected by ice Dec. 28 to Jan. 30, Feb. 2 to Mar. 16. 

from logs Mar. 16, Mar. 28 to Apr. 6, Apr. 20-25, May 12-29.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

114

109

109

119

107

116

186

252

315

341

349

*345

337

334

357

498

847

978

578" 996

937

902

856

816

800

794

783

750

718

739

955

16,837

543

1.03

1.19

Nov.

1,260

1,430

1,450

1,480

1,550

1,530

1,510

1,480

1,420

1,340

1,280

1,210

1,140

1,100

1,060

1,030

*1,030

1,070

1,070

1,040

996

960

908

908

890

856

816

788

745

702

34,029

1,134

2.15

2.40

Dec.

676

645

630

640

686

660" 691

645

625

605

576

556

532

514

500

480

470

460

450

450

440

430

420

410

400

390

380

370

360

360 

350

15,801

510

0.968

1.12

Jan.

340

340

337

326

315

308

300

297

304

315

334

349

372

349

341

334

330

320

320

*310

300

290

290

280

270

260

259

249

243

0*Q MlZ4o

9,466

305

0.579

0.67

Feb.

235

239

236

235

240

233

249

246

239

233

227

236

236

233

*230

225

220

227

230

227

225

220

215

210

211

214

211

208

205

6,595

227

0.431

0.47

Mar.

200

199

T9?

205

202

202

211

236

249

243

239

236

233

233

236

230

230

225

225

225

225

227

227

227

220

220

*220

214

214

220

220

6,892

222

0.421

0.49

Apr.

220

220

227

262

364

482

630

810

990

1,160

1,310

1,500

1,740

1,920

2,040

2,320

2,930

3,310

3.370

3,240

3,030

2,820

2,620

*2,440

2,260

2,120

2,010

1,990

2,410

3,040

53,785

1,793

3.40

3.80

May

3,480

5.600

3,490

3,330

3,200

3,050

2,860

2,640

2,390

2,230

2,150

2,060

1,980

1,900

1,820

1,750

1,680

1,600

1,500

1,420

1,340

1,250

1,200

1,160

1,110

1.050

1,040

1,220

1,360

1,440

1,640

61,920

1,997

3.79

4.37

June

1,770

1,770

1.790

1,780

1,710

1,620

*1,520

1,420

1,350

1,310

1,330

1,240

1,160

1,080

1,000

931

856

788

698

632

588

491

407

399

379

356

348

330

315

294

29,662

989

1.88

2.09

July

283

276

266

253

243

283

300

300

333

375

395

411

495

622

672

657

632

583

554

545

518

500

478

452

348

256

237

227

217

211

202

12,124

391

0.742

0.86

Aug.

202

*T96

187

184

181

178

175

173

170

167

161

159

156

153

150

145

143

140

140

137

135

130

125

122

120

117

113

105

103

103

115

4,585

148

0.281

0.32

Sept.

125

T78

184

170

167

170

175

173

170

167

167

167

164

164

161

170

178

175

170

181

181

184

190

202

205

*202

202

202

199

196

5,339

178

0.338

0.38

Calendar year 1955: Max 5,550 Min 107 Mean 817 Cfsm 1.55 In. 21.06

Water year 1955-56: Max 3,600 Min 103 Mean 702 Cfsm 1.33 In. 18.16

Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Dec. 16, 17, Dec. 19 to Jan. 2, Jan. 18-26, 31, 

Feb. 1, 4, 5, 16, 17, 21-24, 29, Mar. 1, 16-21.
HUDSON RIVER BASIN

Hudson River at Hadley, N. Y.

Location. La t 43°19'10", long 73°50'40", on right bank at Hadley, Saratoga County, 400 ft 

downstream from outlet of Lake Luzerne and a quarter of a mile upstream from Sacandaga 

River .

Drainage area . 1,664 sq mi.

Records available . July 1921 to September 1956.

~Gage. Water-stage recorder. Datum of gage is 563.99 ft above mean sea level, datum of 

Average discharge . 35 years, 2,932 cfs.

Extremes . Maximum discharge during year, 17,000 cfs May 1 (gage height, 10.67 ft); minimum, 668 cfs Dec. 22 (gage height, 1.93 ft); minimum daily, 751 ofs Dec. 22.

1921-56: Maximum discharge, 42,700 ofs Jan. 1, 1949 (gage height, 21.21 ft); minimum, 281 cfs Sept. 3, 1934 (gage height, 0.94 ft), previously published minimum has 

been revised; minimum daily, 292 cfs July 24, 1934.

Revisions . The minimum discharge for the water year 1931 has been revised to 

298 cfs Nov. 29, 1930 (gage height, 1.04 ft), superseding figure published in WSP 711.

Remarks. Records excellent except those for periods of ice effect, which are fair. 

Slight regulation by Indian Lake Reservoir (see p. 48) and other reservoirs above 

station. Some diurnal fluctuation caused by powerplants on Schroon River.

Revisions (water years). WSP 561: 1921-22. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, 

In feet, and discharge, in cubic feet per second)

Nov. 1 to Sept. 30

2.1 775

3.0 1,480

4.0 2,730

2.0 

3.0 

4.0

710

1,500

2,730

6.O 6,39O

9.0 13,100

11.0 17,800

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

995

917

889 

847

814

864

1,700

2,210

2,400 

*2,140

1,870

1,560

1,250

1,100

1,530

4,880

8,270

6,060

4,440

3,440

2,870

2,560

2,390

2,320

2,390

2,410

2,430

2,320

2,240

2,680

8.410

81,196

2,619

1.57

1.81

Nov.

9.860 

7,640

6,060 

5,430

5,390

4,89O

4,410

4,070

3,780 

3,500

3,310

3,160

2,970

2,940

3,020

2,980

3,460

3,810

*3,600

3,200

2,920

2,730

2,860

2,930

2,870

2,600

2,340

2,270

1,950

1.850

112,800

3,760

2.26

2.52

Dec.

1,800 

1,700

1,740 

1,850

2.540

2,300

1,750

1,800

1,690 

1,650

1,580

1,450

1,350

1,350

1,550

1,300

1,180

1,240

1,240

1,080

860

751

798

983

1,280

1,500

1,300

1,200

1,140

1,150

1,100

43 , 802

1,413

0.849

0.98

Jan.

1,08O 

1,020

1,030 

1,070

1,120

1,190

1,200

997

938 

1,300

1,520

1.580

1,570

1,400

1,430

1,540

1,520

1,460

1,380

1,300

1,290

1,270

1,24O

*1,180

1,160

1,120

*1,100

1,100

1,110

1,100

1,O60

38,375

1,238

0.744

0.86

Feb.

1,040 

1,040

1,060 

1,080

1,150

1,170

1,110

1,090

1,080 

1,080

1,110

1,160

1,170

1,130

1,100

1,080

1,040

1,060

1,120

1,150

1,080

1,050

1,010

*1.000

1,050

1.220

1,200

1,120

1,060

51,790

1,096

0.659

0.71

Mar.

1.O20 

1,020

1,040 

1,160

1,180

1,120

1,110

1,140

1,180 

1,230

1.270

1,270

1,210

1,180

1,170

1,210

1,170

1.2OO

1,180

1-.160

1,180

1,220

1,220

1,200

1,200

1,180

1,190

1,170

*1,160

1,160

1,150

36,250

1,169

0.703

0.81

Apr.

1.140 

1,190

1,240 

1,430

2,150

3,900

5,800

5,630

5,510 

5,840

5,850

6,750

7,730

7,620

7,720

9,850

13,300

12,200

10,700

9,180

8,040

7,420

6,890

6,250

5,710

5,580

5,200

5,850

11,600

16,000

203,270

6,776

4.07

4.54

May

16.700 

* 15, 100

12,600 

11,400

11,000

9,980

9,OOO

8,030

7,150 

6,550

6,730

6,910

6,620

6,460

6,290

5,960

*5,670

5,290

4,760

4,310

3,940

3,640

3,480

3,540

3,40O

3,040

2.880

3,970

5,O8O

5,120

6,500

211,100

6,810

4.09

4.72

June

7.210 

6,680

6,270 

5,890

5,240

4,720

4,230

3,730

3,420

3,400

3,94O

4,160

3,770

*3,240

2,800

2,450

2,170

1,920

1,700

1,530

1,410

,360

,250

,200

,180

,100

,230

,060

920

865

90,045

3,002

1.80

2.01

July

826 

8O2

*782 

752

970

1,250

1,550

1,360

1,340 

1,660

1,580

1,330

1,510

2,270

2.580-

2,280

2,000

1,710

1,480

1,330

1,24O

1,210

1,180

1,370

1,490

1,180

1,050

1,020

961

928

935

41,926

1,352

0.812

0.94

Aug.

1,090 

* 1,1OO

*1,080 

1,06O

1,040

1,030

1,010

1,020

1.380 

1,210

1,150

1,130

1,120

1,110

"" 1,080

1,070

*1,O6O

1,030

1,050

1,O40

1,020

92O

874

924

898

876

859

840

828

829

985

31,713

1,023

0.615

0.71

Sept.

1,250 

2,360

2.690 

1,770

1,300

1,040

1,040

1,320

1,260 

1,12O

1,000

939

I,o5o~

1,140

1,130

1,200

1,400

1,480

1.22O

1,150

1,510

1,500

1,300

1,320

1,270

1,270

1,220

1,150

1,100

1,040

39,539

1,318

0.792

0.88

Calendar year 1955: Max 19,400 Min 525 Mean 2.9OO Cfsm 1.74 In. 23.65

Water year 1955-56: Max 16.7OO Min 751 Mean 2,628 Cfsm 1.58 In. 21.49

Peak discharge (base. 15.OOP cfs). May 1 (1:45 p.m.) 17,OOO cfs (1O.67 ft). 

* Discharge measurement made on this day.

Note . Stage-discharge relation affgcted by ice Nov. 29 to Dec. 1, Dec. 6-8, 10, 12-21, Jan. 7, 

O, Jan. 31 to Feb. 3, Feb. 9, 10, 17, Feb. 26 to Mar. 2, Mar. 8, 9, 18-26, Apr. 5-7.
HUDSON RIVER BASIN 61

East Branch Sacandaga River at Griffin, H. Y.

Location. Lat 43°28'25", long 74°13 I 25", on left bank 300 ft upstream from highway bridge 

at Griffin, Hamilton County, 2 miles downstream from Georgia Creek, 3 miles upstream 

from mouth, and V miles upstream from Wells.

Drainage area. 114 sq mi.

Records available. August 1933 to September 1956.

Gage. Staff gage read twice daily. Datum of gage is 1,254.32 ft above mean sea level, 

datura of 1929.

Average discharge. 23 years, 223 cfs.

Extremes. Maximum discharge during year, 4,840 cfs Oct. 31 (gage height, 10.05 ft, from 

graph based on gage readings); minimum observed, 5.3 cfs Aug. 18 (gage height, 0.53 ft).

1933-56: Maximum discharge, 10,700 cfs Dec. 31, 1948 (gage height, 14.35 ft, from 

floodmark), from rating curve extended above 4,400 cfs on basis of slope-area and 

contracted-opening determinations of peak flow; minimum observed, 2.4 cfs Sept. 20, 

1939 (gage height, 0.30 ft).

Remarks.--Records good except those for periods of ice effect, which are fair. 

Revisions (water years).--WSF 1111: 1936(M).

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, ana discharge, in cubic feet per second)

0.5 

.7 

1.1 

1.5 

2.0 

2.5

41

79

139

3.0 

4.0 

5.0 

6.0 

8.0 

10.0

224

466

811

1,300

2,750

4,790

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

Oct.

25

23

20

18

18

57

343

238

160

106

80

63

52

*46

65

1,360

2,010

1,090

587

357

240

191

152

133

216

201

205

191

172

1,060

3,820

13,299

429

3.76

4.34

Nov.

1,440

706

449

438

408

332

276

240

209

175

178

175

164

225

261

254

507

411

301

240

200

170

167

232

205

156

146

145

107

106

9,023

301

2.64

2.94

Dec.

100

96

104

122

292

207

175

170

145

120

106

*94

90

80

78

70

68

66

64

58

50

45

40

36

37

38

33

29

26

25

24

2,688

86.7

0.761

0.88

Jan.

24

25

25

26

27

26

25

25

26

34

50

80

118

102

92

90

*78

66

54

44

36

32

29

27

25

24

23

22

22

21

21

1,319

42.5

0.373

0.43

Feb.

21

22

22

23

25

27

29

28

28

30

30

32

34

36

*36

35

34

33

34

34

32

31

31

33

36

39

42

40

38

915

31.6

0.277

0.30

Mar.

37

37

38

39

40

40

42

46

52

54

52

50

48

46

46

45

45

44

44

43

43

43

44

46

45

45

44

*43

43

44

45

1,373

44.3

0.389

0.45

Apr.

46

47

50

80

380

620

829

604

528

507

547

714

896

829

765

1,680

2,110

1,250

793

531

455

433

406

356

339

427

416

862

2,720

5,180

23,400

780

6.84

7.63

Hay

*1,740

1,130

906

935

733

631

544

452

377

430

444

406

403

359

315

383

395

317

265

234

200

180

196

214

178

155.

187

257

218

279

768

14,232

459

4.03

4.64

June

629

43S

382

354

274

220

173

139

143

570

858

*447

286

198

144

110

93

72

58

49

46

49

45

48

44

36

39

47

36

30

6,057

202

1.77

1.98

July

27

24

23

20

19

75

108

69

63

119

89

75

135

536

300

165

117

85

70

60

46

56

53

40

32

*28

23

21

18

17

16

2,529

81.6

0.716

0.83

Aug.

14

13

12

11

10

9.5

9.2

8.5

8.3

7.9

7.7

7.3

7.3

7.3

6.7

*6.3

5.6

5.5

6.7

8.1

8.1

7.5

6.9

12

14

12

9.7

7.9

6.9

9.1

66

332.0

10.7

0.094

0.11

Sept.

246

1.420

534

229

126

95

185

109

75

72

57

44

39

34

12

47

215

168

111

436

315

186

159

269

185

133

106

86

76

68

5,855

195

1.71

1.91

Calendar year 1955: Max 3,820 Hin 3.8 Mean 228 cfsm 2-00 i n . 27.21

Water year 1955-56: Max 3,820 Hin 5.5 Mean 221 Cfsm 1.9* In. 26.44

Peak discharge (base, 2,700 cfs).--Oct. 31 (4 a.m.) 4,840 cfs (10.05 ft); Apr. 29 (11:30 p.m.) 

3,830 cfs (9.12 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 30 to Dec. 2, Dec. 7 to Apr. 5.
HUDSON RIVER BASIN

Sacandaga River near Hope, N. Y.

Location.- -La t 43 C 21'10", long 74 "16 '15", on left bank l| miles downstream from West 

Branch Sacandaga River and 4| miles upstream from Hope, Hamilton County.

Drainage area. 491 aq. mi.

Records available. September 1911 to September 1956.

Gage. --Water-stage recorder. Datum of gage is 881.31 ft above mean sea level, datum of 

1929. Prior to July 24, 1929, staff gage at site 300 ft upstream at same datum.

Average discharge. 45 years, 1,125 cfs.

Extremes . Maximum discharge during year, 14,200 cfs Apr. 30 (gage height, 7.78 ft); minimum, 56 cfs Aug. 18 (gage height, 1.35 ft).

1911-56: Maximum discharge, 32,000 cfs Mar. 27, 1913 (gage height, 11.0 ft, from 

floodmarks at site then in use); minimum, about 16 cfs Sept. 30, 1913 (gage height, 

1.17 ft).

Remarks . Records excellent except those for periods of ice effect, which are fair. Some 

seasonal seasonal regulation regulatio at Piseco Lake Outlet; stoplogs placed June 17, July 24; removed

July 15, Sept. 15.

Revisions (water years ) . WSP 711: Drainage area. WSP 756: 

1914(M) , 1915, 1916(M) , 1917-19, 1920(M), 1921-22.

1913(M). WSP 1382: 1912-13,

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

195

345

629

3.0 

4.0 

5.0 

6.0 

8.0

1,100

2,500

4,590

7,350

15,300

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cf sin

Oct.

300 

269

235

187

176

402

2,050

1,690

1,480

1,310

1,060

880

750

*654

1,330

7,450

7,610

5,120

3,450

2,480

1,950

1,620

1,370

1,250

1,450

1,350 

1,320

1,240

1,150

2,680

8,840

63,3 03

2,036

4.15

4.78

Nov.

,770 

,250

,500

,250

,040

,750

,540

,380

,240

,140

,090

,130

,020

,340

,550

,540

,590

,110

,760

,530

,350

,190

,070

1,330

1,260

1,060 

960

940

740

740

48,160

1,605

3.27

3.65

Dec.

660 

620

663

841

1,440

1,230

949

929

861

741

697

*621

597

540

540

500

490

480

460

420

390

360

340

330

340

350 

340

320

300

280

270

17,899

577

1.18

1.36

Jan.

270 

280

*300

310

320

310

300

300

310

380

480

620

800

720

620

600

*560

500

440

390

340

300

270

250

230

215 

200

190

185

180

180

11,350

366

0.745

0.86

Feb.

*175 

175

175

170

180

190

200

195

195

200

200

210

220

215

*210

205

200

205

220

220

210

200

190

195

215

235 

250

240

230

5,925

204

0.415

0.45

Mar.

220 

220

230

240

 260

260

270

300

350

350

330

310

290

270

270

250

240

230

220

215

*220

225

230

220

210

210 

215

215

215

220

215

7,720

249

0.507

0.58

Apr.

220 

*220

230

300

1,400

2,800

3,520

2,820

2,450

2,450

2,520

3,400

3,800

3,440

3,540

6,190

*7,460

5,510

4,260

3,330

2,820

2,750

2,500

2,230

2,090

2,360 

2,250

3,950

9,970

12.200

102,980

3,433

6.99

7.80

May

*8.170 

6,230

5,270

5,020

4,420

3,940

3,500

3,050

2,630

2,720

2,640

2,450

2,380

2,220

2,200

*2,360

2,420

2,110

1,890

1,710

1,480

1,310

1,320

1,340

1,180

1,050 

1,100

1,270

1,160

1,590

4,330

84,460

2,725

5.55

6.40

June

5^890 

3,090

2,730

2,350

1,940

1,640

1,210

750

861

1,330

1,960

*1,380

1,100

909

750

629

542

395

328

300

284

279

264

259

244

230 

206

164

131

176

30,321

1,011

2.06

2.30

July

176 

164

146

135

135

258

382

284

259

345

317

264

334

1.220

832

714

597

497

421

382

357

370

345

306

239

176 

*152

138

124

112

106

10,287

332

0.676

0.78

Aug.

100 

97

94

91

88

88

86

84

78

76

71

66

66

64

*62

60

60

58

62

62

66

74

68

85

86

74 

64

62

60

62

206

2,420

78.1

0.159

0.18

Sept.

977 

2.810

1,720

1,050

814

672

800

621

490

344

240

221

208

204

199

271

540

777

581

1,350

1,340

989

899

1,090

959

795 

688

581

512

455

23,197

773

1.57

1.76

Calendar year 1955: Max 9,910 Min 62 Mean 1,157 of sra 2.36 in. 31.97

Water year 1955-56: Max 12,200 Min 58 Mean 1,114 Cfsm 2.27 in. 30.90

Peak discharge (base, 9,100 cfs).--Oct. 16 (12:45 p.m.) 10,500 cfs (6.93 ft); Oct. 31 (lO:30 a.m.) 

10,600 cfs (6.95 ft); Apr. 30 (1:15 a.m.) 14,200 cfs (7.78 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Nov. 27 to Dec. 2, Dec. 14 to Apr. 6 (no gageheight record Mar. 24-26).
HUDSON RIVER BASIN 63

Sacandaga Reservoir at Conklingville, N. Y.

Location. Lat 43"18'55", long 73°55'35", at Conklingville, Saratoga County, 800 ft upstream from right end of Conklingville Dam on Sacandaga River.

Drainage area. 1,044 sq mi.

Records available. January 1930 to September 1956.

Gage. Water-stage recorder. Datum of gage is at mean sea level, adjustment of 1912.

 Prior to Apr. 23, 1930, staff gage at same datum in outlet channel 800 ft downstream.

Extremes.--Maximum elevation during year, 769.03 ft June 2 (contents, 35,440,000,000

 cu ft); minimum, 736.44 ft Apr. 4 (contents, 5,440,000,000 cu ft).

1930-56: Maximum elevation, 769.43 ft Apr. 19, 1954 (contents, 35,900,000,000 

cu ft); minimum since first filling, 729.55 ft Mar. 30, 1940 (contents, 2,100,000,000 

cu ft).

Remarks. Reservoir is formed by earth and concrete dam; storage began in March 1930; dam 

completed in 1930. Usable capacity for stream regulation, 29,670,000,000 cu ft between elevations 735.0 and 768.0 ft. Between elevations 768.0 and 771.0 ft (spillway 

crest) an additional 3,450,000,000 cu ft is available exclusively for flood storage. 

Elevation of inverts of three Dow valves is 699.0 ft. Capacity of 4,600,000,000 cu ft 

below elevation 735.0 ft is considered dead storage, except for extraordinary emergencies or for necessary inspection of structures. Purpose of reservoir is to provide 

flood control and low-water stream regulation for sanitary improvement, navigation, 

and power, as required by the public welfare, including public health and safety. Area 

of water surface of reservoir filled to capacity (elevation, 771.0 ft) is 41.7 sq mi.

Cooperation. Records furnished by Board of Hudson River Regulating District. 

Revisions. WSP 711: Drainage area.

Capacity table, water year 1955-56 (gage height, in feet, and capacity, 

in billions of cubic feet)

735

740

745

750

7.80

11.64

15.94

755

760

765

770

20.61

25.61

30.94

36.56

Mean elevation, in feet, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

117

28

29

30 

31

Cl

Oct.

54.21

54.13

54.08

53.90

53.66

53.59

53.93

54.30

54.48

54.63

54.62

54.54

54.47

54.35

54.39

55.23

57.15

58.34

58.82

59.07

59.15

59.18

59.25

59.33

59.35

59.33

59.32

59.28

59.24

59.39 

60.70

27.03 

+2,647

Nov.

61.72

62.09

62.29

62.45

62.61

62.72

62.75

62.78

62.77

62.73

62.70

62.68

62.63

62.73

62.91

63.03

63.20

63.38

63.47

63.50

63.49

63.48

63.43

63.42

63.40

63.36

63.30

63.14

62.90

62.57

28.17 

+440

Dec.

62.27

61.96

61.67

61.58

61.68

61.57

61.41

61.25

61.07

60.94

60.78

60.61

60.40

60.18

60.01

59.82

59.58

59.41

59.23

59.00

58.76

58.50

58.25

58.01

57.90

57.85

57.70

57.44

57.18

56.95 

56.67

22.08 

-2,274

Jan.

56.49

56.36

56.14

55.89

55.62

55.37

55.12

55.03

54.89

54.63

54.48

54.40

54.38

54.31

54.25

54.20

54.01

53.81

53.57

53.35

53.12

52.95

52.82

52.55

52.29

52.02

51.76

51.48

51.28

51.13 

50.90

16.62 

-2,039

Feb.

50.61

50.37

50.13

49.87

49.70

49.53

49.37

49.10

48.84

48.57

48.29

48.15

48.02

47.72

47.46

47.19

46.90

46.70

46.58

46.31

46.02

45.75

45.47

45.16

44.93

44.81

44.65

44.41

44.19

10.89 

-2,287

Mar.

43.93

43.70

43.45

43.32

43.16

42.90

42.69

42.60

42.49

42.27

42.15

42.05

41.81

41.62

41.44

41.20

41.04

40.86

40.69

40.42

40.16

39.85

39.56

39.28

39.09

38.89

38.55

38.24

37.90

37.63 

37.30

5.89 

-1,867

Apr.

37.15

36.99

36.70

36.45

36.58

37.22

38.31

39.38

40.15

40.91

41.70

42.63

43.76

44.71

45.60

46.85

48.83

50.31

51.32

52.04

52.62

53.20

53.75

54.26

54.65

55.10

55.56

56.10

57.50

59.64

26.16 

+7,820

May

61.13

62.13

62.91

63.61

64.24

64.73

65.14

65.54

65.90

66.22

66.55

66.89

67.21

67.45

67.63

67.83

67.90

67.92

67.94

68.02

68.12

68.10

68.11

68.13

68.12

68.08

68.15

68.25

68.26

68.33 

68.65

35.22 

+3,383

June

68.95

69.00

68.98

68.95

68.84

68.66

68.56

68.40

68.28

68. 23

68.39

68.44

68.40

68.35

6S.29

68.20

68.18

68.13

67.95

67.83

67.68

67.53

67.40

67.34

67.32

67.15

67.00

66.87

66.69

66.50

32.47 

-1,061

July

66.40

66.37

66.15

66.01

65.97

65.87

65.80

65.71

65.73

65.62

65.48

65.30

65.15

65.18

65.22

65.20

65.07

64.94

64.80

64.65

64.52

64.50

64.53

64.42

64.29

64.12

63. 95

63.85

63.70

63.60 

63.44

29.11

-1,254

Aug.

63.25

63.05

62.87

62.69

62.56

62.50

62.31

62.14

61.96

61.79

61.58

61.44

61.36

61.19

60.98

60.78

60.60

60.41

60.32

60.24

60.02

59.84

59.68

59.51

59.32

59.21

59.12

58.93

58.72

58.53 

58.38

23.92 

-1,938

Sept.

58.32

58.41

58.64

58.70

58.62

58.54

58.45

58.32

58.22

58.20

58.04

57.86

57.71

57.58

57.42

57.39

57.46

57.44

57.36

57.32

57.30

57.25

57.24

57.42

57.39

57.31

57.20

57.10

57.01

56.96

22.59 

-513

-Calendar year 1955.................... * +34.9

Water year 1955-56.................... t +83.8

t Contents, in billions of cubic feet, at 12 p.m. on last day of month. 

* Change in contents, equivalent in cubic feet per second.

Note.--Add 700 ft to obtain elevations above mean sea level. Eastern daylight time Oct. 1-29, 

Apr. 29 to Sept. 30 to conform to requirements of regulation at other points downstream.
64 HUDSON RIVER BASIN

Sacandaga River at Stewarts Bridge, near Hadley, N. Y.

Location.--Lat 43°18'40", long 73°52'00", on left bank 1 mile downstream from Stewarts 

Bridge, 1.1 miles west of Hadley, Saratoga County, 1.4 miles upstream from mouth, and 

1.5 miles downstream from Stewarts Bridge hydroelectric plant.

Drainage area. 1,055 sq mi.

Records available. September 1907 to September 1956. Published as "near Hadley" 1907-10, 

"at Hadley" 1911-32, and "at Conklingville" 1932-52. Records published for both sites 

October 1951 to September 1952.

Gage. Water-stage recorder. Datum of gage is 582.00 ft above mean sea level, datum of 

1929. Prior to Jan. 1, 1911, chain gage at site about 1 mile upstream at different 

datum. Jan. 1, 1911, to Sept. 30, 1932, water-stage recorder at site 0.8 mile downstream at datum 8.82 ft lower than present datum. Oct. 1, 1932, to Sept. 30, 1952, 

water-stage recorder at site 3.6 miles upstream at datum 85.47 ft higher.

Average discharge. 26 years (1930-56), 2,100 cfs (unadjusted).

Extremes. Maximum and minimum discharges for the water years 1911-12, 1916-21, and 1956 

(maximum for 1912 revised, superseding that published in WSP 321) are given in the 

following table.

U Waf p-n cp water Hor year

1911

321 1912

431 1916

451 1917

471 1918

501 1919

501 1920

521 1921

1956

Maximum

Date

Apr. 17, 1911

Apr. 9, 1912

Apr. 3, 1916

Apr. 4, 1917

Apr. 4, 1918

Apr. 13, 1919

Mar. 30, 1920

Mar. 23, 1921

May 21, 1956

Discharge 

(cfs)

t9,060

*14,800

11,300

12,800

13,900

11,900

13,300

11,800

5,890

Gage height 

(feet)

7.6

9.05

8.2

8.53

8.80

8.3

8.67

8.28

6.46

Minimum

Date

Aug. 24, 1911

Aug. 1, 1912

Aug.23,Sept.l3,

1916

Sept. 27, 1917

Aug. 28, 1918

Aug. 18, 1919

Sept. 28, 1920

Sept. 10, 11,

12, 1921

Apr. 11, 1956

Discharge 

(cfs)

t!50

89

145

174

105

262

223

153

11

Gage height 

(feet)

2.38

2.35

2.50

2.58

2.36

2.78

2.70

2.54

.44

* Revised.

t Not previously published.

1930-56: Maximum discharge, 8,560 cfs Apr. 30, 1953 (gage height, 7.76 ft); minimum 

(at Conklingville), 6 cfs May 16-18, 1934, Apr. 3, 4, 1952; minimum daily (at Conklingville), 6 cfs May 16, 17, 1934, Apr. 3, 4, 1952.

Remarks. Records excellent except those for periods of fragmentary or no gage-height record, which are fair. Flow completely regulated Sacandaga Reservoir since March 1930 

(see preceding page); no discharge over spillway during year. Extensive diurnal 

fluctuation caused by release of water from Sacandaga Reservoir, through Elmer J. West 

hydroelectric station as directed by Board of Hudson River Regulating District, and 

Stewarts Bridge hydroelectric station.

Cooperation. Since October 1932, discharge computed by Board of Hudson River Regulating 

District from rating developed by Geological Survey.

Revisions.--Revised figures of discharge for the water years 1910-12, 1916-21, superseding 

those published in WSP 281, 301, 321, 431, 451, 471, 501, and 521 are given herein. 

Complete tables of daily discharge are given for the water years 1911, 1916-21, but 

only revised figures are given for the water years 1910 and 1912.

Date

1910

Mar. 3

1912

Apr. 5

7

8

9

Discharge

13 , 600

8,500

9,840

12,100

14,600

Date

1912-Con.

Apr. 10

11

17

18

19

20

21

Discharge

12,500

9,840

9,160

12,100

13,300

13,300

11,700

Date

1912-Con.

Apr. 22

23

24

25

26

Discharge

10,200

9,840

10,600

10, 600

9,160

Month

Water year 1909-10. ..........

April 1912 .....................

Calendar year 1912 ...........

Maximum

15,200

14,600

14,600

Minimum

210

5,590

95

Mean

2,140

9,350

2,120

Per square 

mile

2.03

8.85

2.01

Runoff in 

inches

27.50

9.87

27.28
HUDSON RIVER BASIN

Sacandaga River at Stewarts Bridge, near Hadley, N. Y. Continued 

Discharge, in cubic feet per second, water year October 1910 to September 1911

65

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1.850

1,490

1,190

930

815

654

606

590

555

534

520

508

490

508

490

460

430

430

400

400

370

388

460

508

576

606

654

715

1,120

Ij 260

1,090

21,577

696

0.660

0.76

Nov.

966

894

782

1,060

1,570

2,020

2.500

2,120

1,880

1,740

1,540

1,410

1,340

1,260

1,250

1,150

1,090

966

870

815

760

742

688

654

590

654

670

715

688

670

33,854

1,150

1.07

1.19

Dec.

650

590

576

555

520

490

aSOO

aSOO

a480

a460

a460

a440

a440

a440

a460

a460

a460

a480

a600

a550

a550

aSOO

aSOO

aSOO

a600

a600

a600

a650

a700

aSOO

16,841

545

0.515

0.59

Jan.

850

950

1,200

1.900

1,700

1,500

1,400

1,500

1,300

1,200

1,200

1,100

1,000

1,000

950

950

900

900

900

850

850

800

800

800

800

800

800

800

850

800

750

31,900

1,030

0.977

1.13

Feb.

750

750

750

750

750

750

750

750

700

700

700

700

700

700

650

650

700

700

750

750

750

750

800

Wo

800

780

750

750

-

20,580

735

0.697

0.75

Mar.

750

750

700

700

700

700

700

700

700

650

650

650

650

700

800

850

900

900

850

800

800

800

800

850

950

1,200

1,500

2,600

5.600

5,600

5,000

34,500

1,110

1.05

1.21

Apr.

2,800

2,400

2,200

2,000

1.900

2,760

5,910

4,600

5,650

6,750

6,730

6,460

6,190

6,750

7,560

8,760

9.060

8,460

7,280

6,750

6,750

6,460

6,190

5,920

5,650

5,920

6,460

7,000

7,560

7,860

174,660

5,820

5.51

6.14

May

7.860

7,860

7,860

7,560

6,750

5,650

4,860

5,700

3,300

2,600

2,290

2,150

2,020

1,890

1,470

1,770

1,650

1,650

1,650

1,830

1,650

1,500

1,650

1,710

1,890

1,890

1,850

1,650

1.240

1,470

1,240

95,870

5,030

2.87

3.30

June

1,190

1,530

1,560

1,140

970

1,190

1,710

2,290

2,440

2,020

1,710

1,550

2,020

3,500

5,500

5,110

2,600

2,150

1,710

1,410

1,190

970

870

780

700

700

660

870

870

740

47,230

1,570

1.49

1.66

July

620

550

550

515

450

420

598

576

555

550

525

315

297

279

270

262

274

274

279

288

274

257

236

228

252

257

270

262

266

266

10,261

531

0.315

0.36

Aug.

262

241

217

198

187

187

176

194

228

213

220

257

198

183

170

156

159

156

156

159

159

156

155

150

155

156

156

228

480

870

620

7,198

252

0.219

0.25

Sept.

480

587

420

480

480

450

1,020

1,190

1,240

1.710

1,700

1,330

1,110

956

758

660

660

622

519

455

595

595

566

366

366

366

550

559

555

455

20,560

679

0.642

0.72

Calendar year 1910: Max 15,200 Mln - Mean 2,240 Cfam 2.13 In. 28.80

Water year 1910-11: Max 9,060 Mln 150 Mean 1,410 Cfsm 1.33 In. 18.02

Calendar year 1911: Max 9,060 Min 150 Mean 1,970 Cfsm 1.86 In. 25.28

a No gage-height record; discharge estimated on basis of records for other stations in the 

Sacandaga River basin.

Note. Stage-discharge relation affected by ice Nov. 28 to Apr. 5.

Discharge, in cubic feet per second, water year October 1915 to September 1916

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29 

30

31

Itotal

Mean

Cfam

In.

Oct.

706

660

722

812

882

1,600

2.050

1,750

1,500

1,340

1,160

1,020

892

804

1,110

1,850

1,730

1,490

1,570 

1,600

1,760

1,620 

1,420

1,280 

1,150

1,040

1,040

1,140

1,140

1,070 

996

58,664

1,250

1.18

1.56

Nov.

938

882

847

812

787

795

795

778

778

778

762

746

722

698

722

1,020

1,300

1,280

1,190 

1,980

5.570

5,570 

2,890

2,460 

2,050

1,710

1,520

1,410

1,460

1,900

40,750

1,360

1.29

1.43

Dec.

2,050

1,900

1,760

1,400

1,010

1,080

1,090

1,090

1,100

1,020

996

1,060

1,010

864

956

1,060

1,220

1,580

1,580 

1,900

1,900

1,900 

1,700

1,600 

1,570

1,980

2,890

2.980

2,800

2, 620

2,540

50,006

1,610

1.52

1.76

Jan.

2,210

1,900

1,720

1,600

1,460

1,600

2,370

2,800

2,620

2,570

1,980

1,700

1,650

1,760

1,900

1,710

1,450

1,410

1,530 

1,290

1,240

1.140 

1,470

2,710 

2,890

2,620

2,890

4,020

5,200

5. 980

5, 850

72,300

2,550

2.22

2.56

Feb.

5.590

5,460

5,200

4,840

4,150

a5, 580

a3,080

a2,620

a2,290

al,980

1,760

1,520

1,460

1,530

1,480

1,480

1,450

1,280

1,220 

1,150

1,080

1,070 

986

1,020 

986

1,720

2,800

3,180

5,180

69,082

2,580

2.25

2.45

Mar.

2,890

2,620

2,570

2,050

1,760

1,620

1,420

1,550

1,270

1,250

1,180

1,100

1,090

1,070

1,020

1,040

1,040

996

956 

956

919

892 

910

919 

864

928

1,060

1,450

2,290

5,570 

4,560

46,950

1,510

1.45

1.65

Apr.

5,590

7,280

9,160

10 . 600

9,160

8,180

7,880

7,280

6,400

5,590

4.960

4,960

5,590

5,980

6,260

6,540

7,150

7,880

7,880 

7,580

7,280

7,280 

7,880

8,180 

8,500

8,500

8,180

7,580

6,980

6,400

218,640

7,290

6.90

7.69

May

5,850

5,550

4,960

4,720

4,560

4,020

5,580

5,570

5,180

5,080

2,980

2,710

2,460

2,210

1,980

1,980

5,470

6,400

8.180 

8,180

7,150

6,120 

5,080

4,480 

4,150

5,580

2,890

2,460

2,150

1 . 900

124,880

4,050

3.81

4.39

June

2,050

2,050

1,760

1,760

1,660

1,570

1,220

1.170

1,180

1,550

1,720

1,670

1,550

1,520

1,550

1,410

2,570

3,580

5,680 

3,470

5,270

2,890 

2,460

2,290

1,980

1,900

1,760

1,620

1,580

1,400

59,580

1,980

1.87

2.09

July

1,280

1,090

1,550

2.140

2,140

1,850

1,450

1,180

1,070

956

859

822

766

920

1,080

958

806

718

640 

574

511

625 

766

718 

595

552

559

552

652

595 

497

29,151

940

0.889

1.03

Aug.

429

371

328

506

500

506

289

278

278

278

294

317

317

278

262

243

225

210

167 

156

167

174 

145

152 

152

167

159

156

198

225

7,551

244

0.231

0.27

Sept.

215

189

174

167

170

170

177

185

194

194

177

163

149

149

202

262

396

416

554 

294

252

258 

255

1^090

750

567

469

416

456

9,958

551

0.515

0.55

Calendar year 1915: Max 10,900 Min 534 Mean 1,960 Cfsm 1.85 In. 25.12

Water year 1915-16: Max 10,600 Min 145 Mean 2,100 Cfsm 1.99 In. 27.01

a No gage-height record; discharge estimated on basis of records for other stations in the 

Sacandaga River basin.

Note.--Stage-discharge relation affected by ice Dec. 15 to Jan. 51, Feb. 11 to Mar. 13.
66 HUDSON RIVER BASIN

Sacandaga River at Stewarts Bridge, near Hadley, N. Y. Continued

Discharge, In cubic feet per second, water year October 1916 to September 1917

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Itotal

Mean

Cfsm

In.

Oct.

652

662

559 

462

410

371

322

300

278

272

262

'257 257

294

469

539

490

456

456

586

1,450

2.060

1,670

1,340

1,120

992

884

798

726 

662

610

20,586

664

0.628

0.72

Nov.

595

602

662 

648

640

694

710

742

750

742

774

774

750

742

766

734

702

726

766

758

686

"574 560

1,580

5.660

5,660

5,360

2,720

2,720

3,170

36,967

1,250

1.16

1.50

Dec.

4,950

5.210

4,700 

5,990

5,360

5,460

5,560

5,260

2,800

2,800

2,890

2,540

2,060

1,450

1,200

1,100

1,000

950

900

850

850

850

850

900

900

850

850

950

950 

900

850

62,730

2,020

1.91

2.21

Jan.

850

800

750 

750

750

800

1,100

1,400

1,500

1,500

1,200

1,100

1,000

1,500

1,500

1,700

2,400

2.600

2,500

2,000

1,700

1,500

1,400

1,500

1,170

1,100

1,100

1,000

1,000 

850

850

59,870

1,290

1.22

1.40

Feb.

850

800

800 

750

750

700

700

700

650

650

600

600

600

600

600

600

600

600

550

550

500

550

500

450

650

450

550

1,200

-

18,100

646

0.611

0.64

Mar.

1,500

1,500

1,500 

1,200

1,100

1,000

900

850

850

800

800

800

850

1,200

1,100

1,100

1,100

1,400

1,500

1,400

1,500

1,200

1,500

1,700

2,800

4,000

5,500

6,980

8,700 

9,570

9.710

74,810

2,410

2.28

2.65

Apr.

9,050

8,700

10,800 

12 . 600

12,200

11,100

9,710

8,700

7,450

6,410

5,600

5,080

4,700

4,340

3,990

5,660

5.560

5,660

4,460

5,940

8,370

10,800

11,900

11,900

10,800

9,370

8,050

6,980

6,140

5,600

231,580

7,710

7.29

8.14

May

5,340

5,470

5.750 

5,600

5,540

5,340

5,210

5,080

4,820

4,460

4,100

3,770

5,350

3,060

2,690

2,450

2,110

1,950

1,680

1,450

1,570

1 290

1J590

1,950

2,350

2,430

2,190

1,880

2,170

5,770

4,220

103,990

3,350

3.17

3.66

June

3,770

5,550

2,960 

2,960

2,780

2,550

2,350

2,430

5,250

5,460

4,570

9,050

11,500

12.200

10,000

8,050

6,550

5,540

4,460

3,560

2,960

2,430

1,950

1,800

2,050

1,880

1,700

1.490

1,570 

5,520

126,050

4,200

5.97

4.45

July

4.100

5,660

5,080 

2,460

1,920

1,520

1,280

1,090

958

875

895

1,010

1,180

1,200

1,100

1,040

965

902

902

884

822

742

662

602

574

581

539

490

422

390

365

57,188

1,200

1.14

1.31

Aug.

340

3E2

384 

390

328

285

257

238

235

534

678

567

455

384

359

371

476

567

525

429

559

322

283

494

655

588

518

442

403 

396

455

12,835

414

0.392

0.45

Sept.

490

539

670 

618

525

442

590

371

347

317

289

272

262

235

243

233

219

210

202

189

189

194

194

194

185

181

177

177

177

8,918

297

0.281

0.31

Calendar year 1916: Max 10,600 Jlin 145 Mean 2,070 Cfsm 1.96 In. 26.69

Water year 1916-17: Max 12,600 Hin 177 Mean 2,120 Cfsm 2.01 In. 27.20

Note. Stage-discharge relation affected by Ice Dec. 15 to Mar. 27.

Discharge, In cubic feet per second, water year October 1917 to September 1918

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

31

Ttotal

Mean

Cfsm

In.

Oct.

223

257

278

289

565

655

782

718

595

546

511

476

661

1,210

1,150

1,550

1,540

1,290

1,160

1,220

1,710

1,590

1,550

1,230

1,540

2,140

2,140

1,990 

2,630

4,560

6.550

42,666

1,380

1.31

1.50

Nov.

7.450

7,130

6,140

5,080

4,100

3,260

2,630

2,140

1,720

1,580

1,440

1,300

1,190

1,070

1,010

956

938

902

848

830

782

822

1,250

1,820

1,640

1,200

950

850 

800

7 5O -i 

62,558

2,090

1.98

2.20

Dec.

'650 700

600

550

500

480

460

440

440

440

420

550

550

550

600

600

600

600

550

550

550

550

550

550

500

480

480

480 

480

460

440

16,350

527

0.499

0.58

Jan.

420

420

420

400

380

340

300

260

240

240

260

300

320

320

340

400

380

420

440

480

500

440

400

400

400

440

460

440 

440

420

420

11,840

382

0.361

0.42

Feb.

420

440

440

420

440

420

420

420

420

380

360 40~0

600

800

800

1,000

1,300

1,600

2,000

2,400

2,600

2,600

2,600

2,400

2,400

2,800

3,400

5.800

58,080

1,560

1.29

1.34

Mar.

3,800

5,800

2,800

2,200

1,800

1,600

1,700

1,800

1,800

1,900

2,000

1,600

1.500

1,700

1,900

2,000

1,600

1,700

2,000

2,400

5,200

4,400

5,730

6,980

7.740

7,740

7,430

7,740 

7,430

7,740

7,740

115,470

3,720

3.52

4.06

Apr.

8,700

10,400

12,600

15.500

11,500

9,710

8,700

8,050

8,700

9,370

9,710

8,700

7,430

6,410

5,730

5,730

6,270

6,980

7,740

7,740

7,430

7,280

7,430

7,430

6,980

6,550

5,860

5,210 

4,700

4.580

237,120

7,900

7.47

8.34

May

4,580

4,580

4,460

4,460

4,540

4,100

3,660

3,350

2,960

2,780

2,960

2,870

3,060

4,700

5,860

6.000

5,470

4,700

3,880

3,250

2,780

2,430

2,110

1,880

1,600

1.520

1,666

1,770 

1,720

1,650

2,030

103,110

3,330

3.15

3.65

June

1,920

1,680

1,590

1,150

1,040

1,000

1,090

1,870

1,790

1,620

1,810

1,990

2,800

2.890

2,650

2,140

1,710

1,400

1,150

974

839

875

1,140

1,260

1,200

1,030

875

766 

670

 

43,501

1,440

1.36

1.52

July

581

648

766

686

595

546

497

525

490

497

595

662

710

798

1,050

1.140

1,020

1,010

1,030

902

758

648

532

469

442

429

378

311 

294

272

 257

19,538

630

0.596

0.69

Aug.

257

257

238

228

215

206

202

189

228

272

340

334

322

306

283

252

228

223

194

181

167

156

152

145

142

133

127

112

TT2

118

130

6,449

208

0.197

0.23

Sept.

221

674

588

410

306

294

322

416

365

300

262

238

233

272

365

390

353

347

476

610

734

848

848

734

678

1,090

2,850

5.170 

2,720

2,220

23,334

778

0.736

0.82

Calendar year 1917: Max 12,600 Mln 177 Mean 2,120 Cfsm 2.01 In. 27.25

Water year 1917-18: Max 15,500 Mln 112 Mean 1,970 Cfsm 1.86 In. 25.33

Note. Stage-discharge relation affected by Ice Nov. 22 to Mar. 22.
HUDSON RIVER BASIN

Sacandaga River at Stewarts Bridge, near Hadley, N. Y.--Continued

Discharge, In cubic feet per second, water year October 1918 to September 1919

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

1,660 

1,340

1,150

1,090

901

1,040

1,600

1,710

1,540

1,310

1,120

996

882

821

778

730

668

683

714

675

1,010

1,880

1,880

1,700

1,440

1,270

1,430

1,580

1,49O

1,490 

3 350

39,928

1,290

1.22

1.40

Nov.

5,210 

5.600

5,080

4,340

3,660

3,150

2,600

2,270

1,880

1,720

1,650

1,520

1,370

1,310

1,220

1,150

1.090

"1,630

3,660

4,100

3,990

3,560

3,060

2,600

2,110

1,740

1,260

1,270

1,530

1,760

77,090

2,570

2.43

2.71

Dec.

1,800 

1,290

1,270

1,390

1,390

1,240

1.010

1,040

1,170

1,350

1,240

1,060

1,080

1,100

1,390

2,350

2,780

2,600

2,190

1,770

1,560

1,520

2,640

3,770

4,460

6,840

7.150

6,140

4,950

3, 880

3,060

76,460

2,470

2.34

2.69

Jan.

2,780 

2,960

5.560

3,460

2,690

2,110

1,950

1,880

1,900

1,720

1,450

1,350

1,250

1,250

1,250

1,270

1,280

1,090

1,040

1,040

956

938

91Q

1,450

1,950

2,270

2,110

1,880

1,650

1,490

1,540

54,204

1,750

1.66

1.91

Feb.

1.190 

1,060

966

910

864

847

787

745

698

722

869

801

683

594

650

714

959

910

917

824

690

580

566

552

587

552

601

652

-

21,450

766

0.725

0.75

Mar.

865 

1,170

1,520

1,780

1,950

2,550

2,780

2,870

5,060

5,990

4,220

4,340

4,460

5,770

5,550

2,960

2,450

2,780

5,770

4,580

5,470

6,160

6,840

6,980

6,980

6,700

6,410

8,050

8.570

8,050

7,740

156,745

4,410

4.17

4.81

Apr.

6,980 

5,860

4,950

4,540

4,220

4,460

4,820

5,600

6,270

6,980

7,740

9,570

11,500

11 100

9^050

7,430

6,700

6,270

5,860

5,210

4,580

5,990

5,460

5,150

5,250

5,250

5,060

2,690

2.600

2,600

167,520

5,580

5.28

5.89

May

2.520 

5,990

5,080

5,470

5,540

5,210

4,950

4,820

4,700

4,220

4,100

4,460

4,820

4,700

4,340

5,770

5,550

5,560

4,100

5,990

5,660

4,220

5,600

6,270

6.700

6,550

5,860

5,080

4,220

5,250 

2 520

141,420

4,560

4.51

4.98

June

.650 

,580

,530

,140

,010

895

830

790

850

929

958

875

782

710

678

974

1,120

1,200

1,000

798

670

567

504

429

390

559

559

1,490

1,780

1,220

28,025

954

0.884

0.99

July

965 

822

710

618

546

518

574

758

670

595

1,290

2.500

1,710

1,220

965

902

1,150

1,020

859

718

640

754

1,310

1,280

1,110

992

920

1,550

1,740

1,400 

1,140

51,486

1,020

0.965

1.11

Aug.

983 

857

702

581

490

448

448

462

497

511

403

347

522

506

500

289

285

272

549

766

1.200

866

702

754

726

920

850

750

702 

655

710

18,411

594

0.562

0.65

Sept.

1,050 

1,020

1,110

1.440

1,550

1,110

850

625

581

954

1,300

1,180

1,110

965

798

682

652

588

518

455

442

490

751

1,500

1,230

1,180

1,070

938

814 

718

27,171

906

0.857

0.96

Calendar year 1918: Max 13,500 Mln 112 Mean 2,170 Cfsm 2.05 In. 27.85

Water year 1918-19: Max 11,500 Min 272 Mean 2,250 Cfsm 2.13 In. 28.85

Discharge, In cubic feet per second, water year October 1919 to September 1920

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

587

552

559

660

675

722

1,740

2,050

1,640

1,480

1,770

1,800

1,560

1,580

1,200

1,180

1,780

2,190

2,030

1,770

1,560

2,280

5.550

5,250

2,960

2,600

2,520

2,780

2,870

2, 780

2,690

56,925

1,840

1.74

2.00

Nov.

5,150

5,660

5,770

5,660

5,660

3,770

3,660

3,550

2,780

2,450

2,110

2,190

5,000

3,990

4,220

3,880

3,460

2,870

2,430

2,030

1,540

1,490

1,530

1,600

1,530

1,540

2,480

3,060

2,960

3 250

85,050

2,840

2.69

2.99

Dec.

5.770

5,770

5,150

2,270

1,770

1,620

1,520

1,650

1,740

2,110

2,550

1,800

1,500

1,400

1,200

1,200

1,100

1,000

850

800

750

750

750

650

650

650

550

550

550

500

500

45,420

1,400

1.52

1.55

Jan.

540

320

340

400

460

340

360

460

400

400

360

340

540

540

540

540

540

540

560

560

560

400

400

41X1

540

'320

420

420

360

360

320

-11,380

367

0.347

0.40

Feb.

280

400

420

400

420

460

420

420

400

400

360

360

560

340

520

520

.280

560

520

540

540

540

560

560

380

400

360

400

420

10,740

370

0.350

0.38

Mar.

360

400

380

360

400

800

1,200

1,400

1,400

1,300

1,300

1,300

1,500

2,000

2,700

3,600

4,700

5,210

5,470

5,470

5,080

4,460

3,990

3,990

4,220

5,340

6,980

8,370

10,000

11,800

117,280

3,780

3.58

4.13

Apr.

11,500

12,200

12.600

11,900

11,500

11,100

10,400

9,030

7,280

6,140

5,470

4.620

5,860

7,740

8,700

9,030

9,370

9,370

9,030

8,570

8,050

8,050

8,700

9,050

9,050

8,050

6,980

6,840

7,280

7,740

261,160

8,710

8.24

9.19

May

7.260

6,410

5,470

4,700

4,100

5,560

5,060

2,690

2,520

2,600

2,780

5,060

2,960

2,690

2,450

2,190

1,800

1,760

1,580

1,440

1,580

2,600

5,060

2,780

2,450

2,190

1,800

1,540

1,290

1,120

986

86,456

2,790

2.64

5.04

June

938

857

782

710

678

742

857

884

814

734

662

595

539

511

490

469

554

875

1,140

1.540

1,250

1,150

1,070

947

814

694

581

497

448

456

25,058

769

0.728

0.81

July

422

415

963

1,010

938

790

655

618

686

774

655

560

886

1,150

1,050

992

857

694

774

1,600

1.710

1,220

985

857

766

670

588

525

462

448

442

25,140

811

0.767

0.88

Aug.

595

754

694

588

511

448

405

578

547

340

584

1,080

1,790

1,610

2.470

1,840

1,440

1,070

875

742

640

546

497

462

416

565

328

294

289

311

22,776

735

0.695

0.80

Sept.

340

584

578

547

511

289

285

511

517

522

540

584

476

632

662

581

532

490

442

384

340

317

289

267

252

243

233

262

396

610

11,414

380

0.360

0.40

Calendar year 1919: Max 11,500 Mln 272 Mean 2,220 Cfsm 2.10 In. 28.57

Water year 1919-20: Max 12,600 Mln 235 Mean 2,060 Cfsm 1.95 In. 26.55

Note. Stage-discharge relation affected by Ice Dec. 12 to Mar. 16.
HUDSON RIVER BASIN

Sacandaga River at Stewarts Bridge, near Hadley, N. Y.--Continued 

Discharge, In cubic feet per second, water year October 1920 to September 1921

Day

12

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Iota;

Mean

Cfsm

In.

Oct.

2,490

5,660

3,350

2,780

2,190

1,620

1,270

1,030

864

738

637

573

532

493

474

455

430

412

407

401

395

384

366

350

344

339

344

639

1,370

1,260

1,040

31,637

1,020

0.965

1.11

Nov.

928

901

1,310

2,350

2,270

1,800

1,530

1,350

1,220

1,440

2,060

2,030

1,700

1,400

1,230

1,140

1,080

1,280

1,460

1,440

1,390

1,320

1,900

3,550

3,550

5,060

2,690

2,550

2,050

1,760

55,119

1,770

1.67

1.87

Dec.

1,800

5,750

4,460

4,460

4,700

5,730

6,270

6,000

4,950

4,540

5,770

5,060

2,520

5,490

7,740

10.000

10,000

8,570

6,840

5,540

4,460

5,560

5,550

5,560

5,060

2,050

1,800

1.580

1,800

1,710

1,680

156,180

4,390

4.15

4.79

Jan.

1,610

1,640

2,110

2.520

2,520

2,350

1,950

1,680

1,680

1,430

1,520

1,800

1,800

1,290

1,020

1,060

1,140

1,140

1,550

1,590

1,320

1,420

1,430

1,200

1,110

1,150

1,150

1,240

1,010

 976 976

45,962

1,480

1.40

1.62

Feb.

1,040

1,100

976

919

882

910

956

966

1,220

919

864

875

986

847

986

864

947

,160

.570

,520

,550

,150

,020

966

1,160

958

855

812

-

28,556

1,020

0.965

1.00

Calendar year 1920: Max 12,600 Mln 233

Mar.

838

882

1,180

1,700

2,110

2,270

2,870

3,880

4,950

6,140

7.430

10,000

10,000

10,000

10,000

10,000

10,800

11.500

10,400

9,050

9,050

10,400

11,500

10,400

9,570

9,710

10,000

9,710

9,570

8,570

7,430

23L.270

7,460

7.06

8.14

Apr.

6.550

6,000

5,470

4,820

4,540

3,990

5,560

3,150

2,870

2,690

2,430

2,190

1,950

1,760

1.700

2,110

2,870

5,660

3,990

3,880

3,560

5,060

2,870

5,150

5,560

5,460

5,150

2,780

2,550

2,600

100,520

5,550

5.17

5.54

May

4,100

4,700

4.820

4,460

5,880

5,250

2,520

1,520

1,520

1,260

1,250

1,150

1,110

1,400

1,440

1,250

1,070

956

864

795

738

675

637

630 630"

738

873

778

685

668

778

50,925

1,640

1.55

1.79

June

750

640

560

525

525

546

485

456

405

578

571

429

710

750

662

560

476

416

384

559

522

294

283

272

278

272

272

328

422

761

13,867

462

0.457

0.49

Mean 2,160 Cfsm 2.04

July

1,050

812

652

519

412

555

325

325

344

426

1,580

4,460

5.210

4,580

5,660

5,660

5,350

2,600

2,190

2,450

2,520

1,880

1,440

1,160

947

795

675

587

526

499

559

50,524

1,620

1.55

1.77

Aug.

595

525

485

442

416

584

578

559

553

490

405

442

618

694

560

476

416

410

490

618

567

490

416

359

522

294

257

238

223

ITS- 210

IS, 525

436

0.412

0.48

Sept.

219

223

223

215

202

198

189

181

170

163

159

165

210

258

228

206

194

206

228

278

262

267

353

596

540

528

528

534

300

294

7,295

243

0.250

0.26

In. 27.80

Water year 1920-21: Max 11,500 Mln 159 Mean 2,090 Cfsm 1.98 In. 26.86

Calendar year 1921: Max 11,500 Mln 159 Mean 1,920 Cfsm 1.82 In. 24.63

Discharge

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

50

51

Iota]

Mean

Mean

Cfsm

In.

Oct.

2,560 

54

2,400

2,510

2,540

2,340

1,690

1,660

33

1,940

1,850

1,870

1,870

1,920

1,940

300

74

2,070

2.600

2,500

2,600

2,510

109

2,470

2,500

2,550

2,530

2,550

2,520

1,360

2,570

58,570

1,885

Ad_

4,554

4.52

4.98

Nov.

2,760 

2,590

2.540

2,570

2,710

2,630

2,580

2,690

2,560

2,630

2,600

2,650

2,610

2,640

2,600

2,620

2,590

2,650

»2,650

2,610

2,640

2,610

2,580

2,700

2,710

2,560

2,740

3,930

4.820

4,690

84,440

2,815

usted fc

3,275

5.10

3.46

In cubic feet per second, water year October 1955 to September 1956

Dec.

4,810 

4.990

4,950

2,630

5,570

5,950

5,520

5,740

5,610

5,710

2,590

5,470

5,570

5,550

5,520

5,460

5,650

2,600

5,280

5,740

f 5, 520

f5,450

5,540

5,660

1.090

1,180

5,270

5,550

3,370

3,530

3,490

106,160

5,425

r chang

1,155

1.09

1.26

Jan.

1,150 

3,150

3,350

3,550

5,350

5,480

5,500

522

5,290

5,400

5,590

5,500

5.540

5,580

1,570

5,210

5,580

5,580

5,550

5,510

5,560

1,750

5,050

»5,560

5,280

3,320

3,330

3,320

1,630

5,240

5,280

92,792

2,995

' In con

952

0.902

1.04

Feb.

5,160 

5,170

5,220

f5,110

1,680

5,110

5,190

5,150

5,110

5,180

3,100

1,680

3,090

3,110

5.500

f2,920

5,190

5,240

1,600

5,150

3,150

5,040

5,150

5,080

5,150

1.500

5,120

5,040

3,050

84,680

2,920

;ents In

634

0.601

0.65

Mar.

3,070 

3,000

5,050

1,530

2,990

3,020

3,000

5,070

5,040

2,940

1.460

2,960

2,990

2,980

2,890

2,960

2,950

1,540

5,040

3,000

5,070

3,040

2,960

5,020

1,570

5.180

3,080

5,010

 3,000

3,040

2,960

87,410

2,820

Sacandaf

945

0.896

1.03

Apr.

512

2,870

2.990

2,890

2,670

987

59

56

805

51

14

L4

14

12

TI

27

24

655

112

31

51

31

41

26

24

24

24

27

41

318

15,350

511

>a Resen

6,500

7.67

8.76

May

122 

26

72

24

a29

a29

a22

22

21

»25

21

25

159

662

1,710

2,900

5,250

5,210

5,270

107

2,680

2,120

2,250

2,200

2,170

2,170

49

2,200

2,180

2,250

5.750

39,661

1,260

rolr and

4,700

4.45

5.14

June

*5.460 

5,460

5,460

5,420

5,040

4,500

3,690

3,500

3,120

45

2,110

2,460

2,420

2,650

2,160

2,220

105

2,140

2,240

2,060

2,220

2,220

2,330

40

2,300"

2,370

2,420

2,380

2,540

2,490

63,410

2,760

Stewart

1,722

1.63

1.82

July

54 

2,490

2.650

59

2,460

2,400

2,580

82

2,590

2,620

2,550

2,4,00

2,590

2,300

130

2,410

2,400

2,410

2,420

f2,400

f2,390

45

 2,560

2,590

2,590

2,390

2,360

2,440

39

2,330

2,400

60,909

1,965

Bridge

709

0.672

0.77

Aug.

2,360 

2,410

2,440

2,590

41

2,570

2,430

2,440

2,430

2,460

2,440

73

2,400

2,370

2,390

2,350

2,530

"55 2.480

2,570

2,590

2,580

2,580

2,360

2,420

96

2,330

2,420

2,410

2,400

2,470

65,111

2,100

Pool

163

0.155

0.18

Sept.

2,010 

55

26

1,970

1,910

2,080

2,100

2,120

109

2,050

2,190

2,150

2.200

2,050

2,150

100

2,100

2,090

2,090

2,100

2,130

2,060

110

2,070

2,120

2,110

2,160

2,060

2,140

60

50,692

1,690

1,177

1.12

1.24

Adjusted

Calendar year 1955: Max 5,380 

Water year 1955-56; Max 5,460

Mln 

Mln

6.0

12

Mean 2,317 

Mean 2,265

Mean 2,352 

Mean 2,552

Cfsm 2.25 

Cfsm 2.23

30.27

30.35

 Discharge measurement made on this day.

a No gage-height recordj discharge estimated on basis of upstream powerplant records, 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

Note.--Eastern daylight time used Oct. 1-29, Apr. 29 to Sept. 50 to conform to requirements 

regulation at other points downstream.
HUDSON RIVER BASIN 69

Glens Falls feeder at Glens Falls, N. Y.

Location. Lat 43°17'30" , long 73°39'55" , on right bank at upstream end of feeder canal 

at city of Glens Falls, Warren County.

Records available (navigation seasons only).--May 1927 to September 1956 In reports of 

Geological Survey. May 1919 to June 1921 and October 1924 to September 1925 In reports 

of State engineer and surveyor.

Gage. Water-stage recorder. Datum of gage Is at mean sea level (Barge Canal datura).

A~uxiliary water-stage recorder 1,000 ft downstream from cement mill and 3.3 miles downstream from base gage.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Plow regulated In accordance with requirements of Champlaln Canal and for floating 

logs. Operation of feeder discontinued Dec. 11 and resumed Apr. 26; discharge record 

ended Nov. 24 and began Apr. 27. During period of no diversion, the feeder may carry 

a small flow representing leakage through headgates.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

184

190

190

188

189

183

al50

a!45

a!40

a!30

a!25

all6

«al40

186

186

175

145

159

157

157

160

154

156

148

153

143

158

161

160 

163

163

4,954

160

_

-

Nov.

162

163

164

164

162

167

170

170

176

175

173

171

171

172

182

187

 192

187

188

189

190

194

195

194

-

_

_

_

-

_

_

-

Dec. Jan. Feb. Mar. Apr.

_

_

_

-

-

_

-

.

-

-

_

_

_

-

-

_

_

-

_

-

_

-

-

-

-

_

115

112

152 

133

_

-

-

May

119

117

112

113

113

108

109

109

106

TS5

150

144

al45

al48

a!45

al49

*al45

152

155

145

147

142

142

147

 149

145

141

146

150 

143

145

4,202

136

-

June

 146

144

139

138

137

«14O

141

 140

135

130

134

132

129 130-

 135

133

134

129

129

133

133

 131

132

145

156

155

153

148

 146 

143

4,150

138

»

-

July

143

162

171

171

157

 165

160

158

157

153

154

152

 147

143

140

162

169

166

161

 159

160

160

157

 153

155

163

 168

163

159 

157

159

4,904

158

_

-

Aug.

159

160

 157

153

153

151

153

148

147

 145

145

147

145

147

147

146

*156

156

157

158

162

163

163

*163

165

165

167

167

166 

156,

 148

4,815

155

_

-

Sept.

146

144

149

145

148

145

 146

148

149

151

151

152

154

 150

154

151

149

155

156

156

 155

154

152

150

155

155

156

 155

155 

153

4,539

151

^

-

Calendar year : Max Mln Mean Cfsm In.

Water year : Max Mln Mean Cfsm In.

* Discharge measurement made on this day.

a No gage-height record at base gage; discharge estimated on basis of records at auxiliary gages.

505690 O - 59 - 6
70 HUDSON RIVER BASIN

Glens Palls feeder at Dunham Basin N. Y.

Location.--Lat 43°18'15", long 73°32'50", on left bank at Dunham Basin, Washington County, 

100 ft upstream from Bond Creek and 8 miles downstream from feeder dam at Glens Palls.

Records available.--September 1945 to September 1956 (navigation seasons only).

Gage . Water-stage recorder. Datum of gage is 139.6 

aatum).

ft above mean sea level (Barge Canal

Remarks. Records excellent except those for periods of backwater from Bond Creek, which 

are fair. Plow regulated in accordance with requirements of Champlain Canal. Operation of feeder discontinued Dec. 11 and resumed Apr. 27. Discharge shown during 

intervening period consists of leakage through headgates and runoff from area tributary 

to feeder above station. This flow may continue during period of no record. During 

canal navigagion season, a portion of the flow is diverted into Lake Champlain basin 

through summit level of Champlain Canal at Dunham Basin.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4 

5

6

7

8 

9 

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total 

Mean

Cfsm

In.

Oct.

160

166

166 

163 

176

172

C190

179

160 

154

172

160

*169

182

175

c220

c2~53

157

154

145

145

145

151

145

154

136

151

154

148

c!65

c210

5,143 

166

-

-

Nov.

175

163

166 

c!85 

185

160

163

160 

169 

166

175

175

175 

191

185

182

188

*182

179

182

185

188

182

179

188

185

182

166

191

191

5,343 

178

-

-

Dec.

188

195

188 

195 

195

198

201

188 

201 

191

139

7.6

4.2 

3.2

_

_

_

-

_

_

_

-

_

_

_

_

2,094.0 

150

-

-

Jan. Feb. Mar. Apr.

-

-

1

_

-

.

_

-

-

-

_

-

-

_

-

.

-

-

-

2.9

8.0

98

cl!8

c!70

c!75

571.9 

95.3

-

"

May

127

133

127 

120 

122

115

112

110 

105 

106

*138

146

144 

146

141

146

141

144

141

136

133

141

136

136

138

138

144

138

149

146

146

4,145 

134

-

"

June

141

136

141 

136 

136

*133

130

130 

136 

136

130

136

130 

127

130

127

122

122

117

112

115

110

107

ITS

133

130

127

125

122

120

3,809 

127

-

July

120

130

141 

136 

127

138

138

133 

127

130

122

122

120 

120

117

130

13£

136

133

127

127

127

122

*120

120

120

127

127

125

120

122

3,942

127

-

Aug.

122

125

122 

120

122

117

117

115 

112 

110

115

117

117 

117

117

117

122

122

127

127

133

136

136

138

136

136

136

133

136

133

130

3,863 

125

-

Sept.

130

127

127 

125 

125

125

125

125 

127 

127

127

125

127 

130

127

130

133

133

130

133

133

130

136

138

136

136

*136

136

136

138

3,913 

130

-

Calendar year : Max Mln Mean Cfsm In.

Water year : Max Mln Mean Cfsm In.

* Discharge measurement made on this day. 

c Backwater from Bond Creek.
HUDSON RIVER BASIN 

Bond Creek at Dunham Basin, N. Y.

71

Location. Lat 43°18'25", long 73°32 I 55", on left bank at Dunham Basin, Washington

County, a quarter of a mile upstream from Glens Palls feeder and abandoned Champlain 

Canal, half a mile upstream from Barge Canal (Champlain Division), and 4 miles upstream 

from mouth at Port Edward.

Dramage area. 14.7 sq mi.

Records available.--June 1947 to September 1956. Prior to October 1950, published as 

Bond Brook at Dunham Basin.

Gage. Water-stage recorder. Datum of gage is 140.30 ft above mean sea level (Barge 

C"anal datum).

Average discharge. 9 years, 19.5 cfs.

Extremes.--Maximum discharge during year, 1,020 cfs Apr. 5 (gage height, 7.30 ft); minimum, 1.0 cfs Aug. 5-12 (gage height, 1.66 ft).

1947-56: Maximum discharge, 1,370 cfs Dec. 31, 1948 (gage height, 8.52 ft); minimum, 0.5 cfs Nov. 14, 1953.

Remarks. Records good except those for periods of ice effect or backwater from debris, 

which are fair. During canal navigation season, a portion of the flow is diverted 

below station into Lake Champlain basin through summit level of Champlain Canal at 

Dunham Basin.

Rating tables, water year 1955-56, except periods of Ice effect or backwater 

from debris (gage height, In feet, and discharge, In cubic feet per second)

Oct. 17 to Sept. 30

1.75 

1.9 

2.2 

2.5

2.7 

8.1

3.0 

3.5 

4.0 

5.0

79

128

192

368

1.66

1.70

1.75

1.9

2.2

1.0

1.6

2.7

8.1

23

2.5 

3.0 

4.0 

5.0 

6.0

221

405

640

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

Cfsra

In.

Oct.

7.9

6.3

4.3

3.8

5.4

11

100

41

27

15

11

8.3

*6.9

*5.9

6.5

259

244

99

71

42

26

20

16

14

15

13

14

11

9.6

29

186

1,326.9

42.8

2.91

3.36

Nov.

75

38

25

81

110

51

31

29

22

18

31

25

18

68

40

35

56

*27

19

16

16

15

13

16

15

11

8.4

8.8

6.4

6.2

930.8

31.0

2.11

2.35

Dec.

4.6

4.4

5.3

26

54

30

15

8.2

6.4

5.4

5.0

3.9

3.3

*3.1

3.0

2.9

3.0

3.3

3.1

2.7

2.6

2.5

2.3

2.7

3.6

3.1

2.3

1.9

1.8

2.0

1 9

219.3

7.07

0.481

0.55

Jan.

1.8

1.6

T7f

2.5

4.1

5.0

4.4

3.9

4.6

15

51

68

44

17

9.6

7.8

6.2

3.4

3.0

2.7

2.5

2.2

2.6

2.5

*2.3

2.2

2.1

2.1

2.0

2.1

2.1

282.0

9.10

0.619

0.71

Feb.

2.0

£.0

2.0

1.9

2^

2.1

2.2

2.3

2.6

2.8

3.0

3.1

3.3

*3.0

3.0

2.8

2.7

2.8

3.0

2.8

2.7

2.6

2.6

*2.5

6.0

18

IS

9.0

6.8

_ _ _ _ .

117.6

4.06

0.276

0.30

Mar.

5.0

5.4

25

50

48

40

36

64

35

22

17

15

14

13

11

10

12

11

10

10

9.4

9.6

10

9.4

9.0

9.4

*8.6

8.4

7.8

8.8

552.0

17.8

1.21

1.40

Apr.

16

52

103

170

*547

408

206

123

146

123

91

73

56

39

52

127

116

54

38

27

22

21

21

21

16

16

17

27

139

125

2,992

99.7

6.78

7.57

May

46

28

24

20

18

14

13

10

8.3

8.8

*9.6

8.1

7.7

6.5

5.7

5.3

5.3

4.6

4.2

4.2

3.9

5.6

5.1

8.8

5.5

4.2

6.5

9.6

7.3

7.1

16

328.9

10.6

0.721

0.85

June

15

11

41

25

12

8.1

5.9

*4.2

5.6

8.2

17

7.7

4.4

5.4

5.0

5.5

3.0

2.6

2.2

2.1

2.1

2.1

2.1

2.0

2.0

1.9

1.9

2.0

2.0

2.0

198.8

6.65

0.451

0.50

July

2.0

2.0

1.9

1.8

1.9

3.3

3.4

2.7

3.5

5.7

2.2

2.0

2.5

5.9

5.9

2.5

2.2

2.0

1.8

1.6

1.6

2.0

*2.5

2.2

1.9

1.8

1.6

1.5

1.4

1.4

1.5

72.0

2.32

0.158

0.18

Aug.

1.2

1.2

 1.1

1.1

1*°.

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1 1.1 1.1

1.1 1.1

1.1

1.2

1.2

1.5

1.5

1.5

1.7

1.4

1.5

1.2

1.2

1.2

1.4

2.1

37.2

1.20

0.082

0.09

Sept.

2.1

2.7

2.5

1.9

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.5

1.6

2.5

4.6

8.0

3.4

5.5

2.8

2.6

5.4

20

10

4.8

*3.5

2.7

2.5

2.2

100.6

3.35

0.228

0.25

Calendar year 1955: Max 333 Mln 1.2 Mean 21.2 Cfsm 1.44 In. 19.58

Water year 1955-56: Max 547 Mln l.o Mean 19.5 Cfsm 1.33 In. 18.09

Peak discharge (base. 400 cfs).--Oct. 16 (8:45 p.m.) 675 cfs (6.21 ft); Apr. 5 (5:15 p.m.) 1,020 

cfs (7.30 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Nov. 26 to Dec. 2, Dec. 6 to Jan. 9, Jan. 12 to 

Apr. 2 (doubtful gage-height record Jan. 26 to Feb. 20; no gage-height record Mar. 16-18). Backwater from debris July 16-25, July 27 to Aug. 5.
HUDSON RIVER BASIN

Batten Kill at Arlington, Vt.

Location. Lat 43°04'40", long 73°09'30", on left bank 5 ft upstream from bridge on State 

Highway 313 at Arlington, Bennington County, and 0.9 mile downstream from Warm Brook.

Drainage area.--l52 sq mi.

Records available. October 1928 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 597.68 ft above mean sea level, unadjusted. 

Frior to Nov. 18, 1941, chain gage at downstream side of bridge at same datum.

Average discharge. 28 years, 342 cfs.

Extremes.--Maximum discharge during year, 3,800 cfs Apr. 30 (gage height, 7.85 ft), from 

rating curve extended above 2,300 cfs by logarithmic plotting; minimum, 60 cfs Aug. 16, 

17.

1928-56: Maximum discharge, 11,100 cfs Mar. 18, 1936 (gage height, 11.3 ft, from 

floodmarks, present site), from rating curve extended above 5,200 cfs on basis of slopearea determination at gage height 10.8 ft and computation of peak flow over dam; minimum observed, 43 cfs Aug. 11, 1933.

Remarks. Records good except those for periods of ice effect, which are fair. Diurnal 

fluctuation at low flow caused by mill above station.

Revisions (water years). WSP 756: Drainage area. WSP 851: 1936 (maximum gage height).

Rating tables, water year 1955-56, except periods of Ice effect (gage

height, In feet, and discharge, In cubic feet per second)

(Shifting-control method used Apr. 16)

Oct. 1 to Apr. 16 Apr. 17 to Sept. 30

2.5 

3.0 

4.0

104

258

650

5.0 

6.0 

7.0

1,120 

1,720 

2,5OO 3.0 

4.0

246

650

5.0 

7.0 

7.7

1,240

2,890

3,630

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

174

138

117

107

104

220

682

456

347

236

136

174

155

170

*951

1,300

2. UP

2,080

1,260

915

650

507

425

417

*630

507

460

401

370

370

875

17,804

574

3.78

4.36

Nov.

682

487

409

464

630

570

582

642

542

475

491

460

456

1.010

995

698

702

566

479

440

405

370

347

417

370

319

288

288

*266

247

15,097

503

3.31

3.69

Dec.

233

222

229

292

558

269

215

212

206

192

189

186

177

174

180

170

174

174

164

150

155

145

135

160

199

165

145

130

125 

T30

130

5,785

187

1.23

1.42

Jan.

125

120

130

*122

122

120

115

112

350

1.120

1,070

722

642

432

347

304

273

226

186

196

189

174

183

174

167

161

161

158

155

158

155

8,669

280

1.84

2.12

Feb.

144

150

152

136

155

144

*152

147

147

150

144

147

147

144

150

164

144

150

144

138

133

122

130

125

240

590

448

323

230

5,290

182

1.20

1.29

Mar.

210

222

300

316

273

222

285

285

240

215

209

269

229

*215

202

177

177

185

175

170

165

165

174

174

164

164

158

155

155

155

152,

6,357

205

1.35

1.56

Apr.

152

T67

233

496

1,200

1,300

1,210

885

654

634

748

852

885

793

784

1,300

*2 , 200

1,710

1,300

1,010

826

871

772

690

591

610

586

1,100

2,530

5^600

30,689

1,023

6.73

7.51

May

2.720

1,950

1,800

1,930

1,850

1,660

1,490

1,320

1,130

1,440

1,440

1,370

1,480

1,320

967

816

744

582

502

470

439

435

478

524

425

582

770

1,030

635

*573

758

33,628

1,085

7.14

8.23

June

782

596

969

877

605

498

439

388

358

400

591

415

343

299

274

281

243

222

205

192

189

189

179

176

169

157

166

186

160

150

10,698

357

2.35

2.62

July

141

129

*120

112

120

196

189

150

155

310

189

169

192

655

343

219

199

*153

132

117

114

117

126

157

129

141

114

106

96

90

86

5,266

170

1.12

1.29

Aug.

86

88

82

78

76

72

72

70

68

67

65

67

74

74

67

62

60

70

359

238

126

109

88

106

112

86

78

*72

68

70

90

2,900

93.5

0.615

0.71

Sept.

112

182

286

147

109

93

129

106

90

84

80

78

74

84

144

171

406

566

270

332

303

212

205

840

470

299

23S

199

182

173

6,658

222

1.46

1.63

Calendar year 1955 : Max 2,460 Mln 52 Mean 353 Cfsm 2.32 In. 31.52

Water year 1955-56 : Max 3,600 Mln 60 Mean 407 Cfsm 2.68 In. 36.43

Peak discharge (base. 2,200 cfs).--Oct. 17 (1:30 p.m.) 3,220 cfs (7.74 ft); Apr. 17 (10:30 a.m. to 

1 p.m.) 2,290 cfs (6.36 ft); Apr. 30 (10 to 11 a.m.) 3,800 cfs (7.85 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 21-24, Dec. 26 to Jan. 3, Jan. 7-9, Feb. 22-

25, "~ OQ 29, Ma-n Mar. 1, 1 T 18-22. O_QQ
HUDSON RIVER BASIN 73

Batten Kill at Battenville, N. Y.

Location. Lat 43°06"05", long 73°25"55", on left bank 1 mile southwest of Battenville, 

Washington County, and 3 miles downstream from Whitaker Brook.

Drainage area. 394 sq mi.

Records available. September to December 1908 (gage heights only), October 1922 to 

September 1956.

Gage. Water-stage recorder. Datum of gage is 369.09 ft above mean sea level, datum of 

1929. September to December 1908, chain gage at site 1 mile upstream at different 

datum.

Average discharge. 34 years, 729 cfs.

Extremes.--Maximum discharge during year, 6,460 cfs Apr. 30 (gage height, 8.89 ft); maximum gage height, 10.75 ft Jan. 10 (ice jam); minimum discharge, 110 cfs Aug. 17, 18; 

minimum daily, 110 cfs Aug. 18.

1922-56: Maximum discharge, 21,300 cfs Nov. 4, 1927 (gage height, 17.7 ft, from 

floodmarks); minimum, 7.3 cfs Oct. 5, 1953; minimum daily, 48 cfs Aug. 31, 1953.

Remarks. Records excellent except those for periods of ice effect, which are fair. 

Diurnal fluctuation during low flow caused by mills above station.

Revisions (water years). WSP 741: Drainage area. WSP 1051: 1944(m).

Rating tables, water year 1955-56, except periods of Ice effect (gage height, 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 5 Apr. 6 to Sept. 30

2.3 149

3.0 560

4.0 1,300

6.0 

8.0

3,100

5,310

2.3 65

3.0 550

4.0 1,300

5.0 2,170

7.0 4,140

9.0 6,600

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

250

239

208

192

185

197

717

667

586

436

364

322

292

274 

581

1,420

2,200

5.550

2,500

1,650

1,210

962

814

757

970

918

865

772

709 

631

1,210

26,256

847

2.15

2.48

Nov.

1,280

992

850

910

1,580

1,560

1,330

1,580

1,280

1,110

1,170

1,110

1,040

*1,620 

2 . 070

1,680

1,620

1,400

1,210

1,110

1,020

962

880

925

888

795

716

681

674 

592

34,053

1,134

2.88

5.21

Dec.

573

534

528

630

872

751

600

580

547

500

482

460

440

410 

424

390

370

400

550

310

280

270

280

310

340

520

270

230

215 

210

200

13,076

422

1.07

1.25

Jan.

200

190

200

220

240

230

220

210

240

1,550

2.060

1,610

1,450

962 

737

*632

573

490

410

410

390

360

550

550

510

500

280

260

270 

270

260

16,214

525

1.55

1.55

Feb.

250

270

250

24O

250

250

260

270

260

250

240

260

280

260 

260

290

*260

270

260

250

250

210

210

200

250

1.400

1,170

814

600

10,264

554

0.898

0.97

Mar.

560

602

1,090

1,250

1,030

758

959

.1.450

1,300

948

958

1,580

1,070

978 

800

667

540

640

580

540

500

500

514

514

450

476

462

436

436

443

418

23,229

749

1.90

2.19

Apr.

412

488

722

1,840

4,770

5,040

4,400

3,140

2,350

2,260

2,520

2,760

2,800

2,480 

2,360

3,010

4,370

5,930

3,100

2,520

2,110

2,060

1,900

1,770

1,520

1,480

*1,400

1,650

5,160

5. 550

77,652

2,588

6.57

7.33

May

5.290

3,490

2,940

2,840

2,840

2,580

2,340

2,120

1,810

1,890

2,07O

1,870

1,990

1,930 

1,570

1,530

1,280

1,O6O

918

855

755

704

746

888

718

641

820

1,380

1,060 

932

1,070

52,705

1,700

4.51

4.97

June

1,280

1,080

1,290

1.440

1,150

978

858

*753

683

697

985

790

641

557 

501

508

445

389

561

540

519

312

298

284

277

256

249

298

263 

249

18, 531

618

1.57

1.75

July

235

221

214

2OO

200

263

291

242

242

417

555

305

312

125 

655

417

561

319

263

242

228

221

*221

249

242

249

221

200

179 

172

165

8,802

284

0.721

0.83

Aug.

165

158

151

144

157

157

157

157

130

130

124

124

124

130

150

124

117

110

261

410

235

186

*165

*144

179

158

*130

130

124 

124

158

4,813

155

0.395

0.45

Sept.

200

255

458

291

214

186

179

200

165

158

151

151

144

151 

207

221

440

880

550

480

571

417

568

946

978

676

536

459

403

368

11,363

379

0.962

1.07

Calendar year 1955: Max 3,850 Mln 96 Mean 727 Cfsm 1.85 In. 25. O5

Water year 1955-56: Max 5,33O Mln 110 Mean 811 Cfsm 2.06 In. 28.01

Peak discharge (base. 4.100 efs).--Apr. 5 (1O:15 p.m.) 6,26O cfs (8.74 ft); Apr. 17 (6:45 p.m.) 

4,510 cfs (7.53 ft); Apr. 30 (11:30 p.m.) 6,460 cfs (a.89 ft).

* Discharge measurement made on this day.

Mote. Stage-discharge relation affected by Ice Dec. 7, 8, 10, 12-14, Dec. 16 to Jan. 1O, Jan. 18 

to Feb. 19, Feb. 21-26, 29, Mar. 1, 17-22, 25.
74 HUDSON RIVER BASIN

Glowegee Creek at West Milton, N. Y.

Location. Lat 43°01'50", long 73°55'40", on left bank at upstream side of highway bridge, 

half a mile south of West Milton, Saratoga County, 1^ miles upstream from Kayaderosseras 

Creek, and 4 miles northwest of Ballston Spa.

Drainage area. 26.0 sq mi.

Records available.--April 1948 to September 1956.

Gage. Water-stage recorder. Concrete control since June 20, 1952. Datum of gage is 

407.22 ft above mean sea level, datum of 1929. Prior to Aug. 27, 1948, wire-weight 

gage on bridge at same site and datum.

Average discharge. 8 years, 41.0 cfs.

Extremes.--Maximum discharge during year, 704 cfs Oct. 16 (gage height, 5.95 ft); minimum, 

4.0 cfs Aug. 11, 12 (gage height, 2.93 ft).

1948-56: Maximum discharge, 1,670 cfs Dec. 31, 1948 (gage height, 7.04 ft); minimum, 0.37 cfs Aug. 10, 11, 1949 (gage height, 0.67 ft).

Remarks. Records good except those for periods of ice effect, which are fair. Records of 

water temperatures for the water year 1956 are given in WSP 1450.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 17 to Sept. 30

3.0

3.1 

3.3 

3.5 

3.8

6.1

11

24

42

76

4.0 

4.5 

5.0 

6.0

108

213

349

727

2.9

3.0

3.1

3.1 

6.3

11

3.3 

3.5 

3.8

Note. Same as preceding table above 3.8 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

27

16

11

9.4

8.4

101

147

68

44

32

25

21

18

18

188

452" 580

174

*129

88

66

53

45

44

51

52

61

46

39

267

475

3,355.8

108

4.15

4.80

Nov.

156" 189

80

120

137

86

66

66

55

50

68

57

47

122

80

94

110

68

55

50

48

*45

42

59

48

39

33

34

24

27

2,105

70.2

2.70

3.01

Dec.

23

22

26

123

164

70

38

32

31

28

27

22

22

21

22

*21

22

24

23

18

19

18

16

16

20

24

18

13

12

15

12

960

31.0

1.19

1.37

Jan.

12

10

To

12

14

15

14

14

15

114

137

178

~B9 182

59

48

40

26

23

24

19

19

18

16

15

14

14

14

13

14 

14

1,206

38.9

1.50

1.73

Feb.

IS" 13

14

13

15

15

15

16

17

18

18

20

22

20

20

*17

17

18

19

18

15

16

16

15

24

54

52

43

35

608

21.0

0.808

0.87

Mar.

30

28

35

62

68

53

114

191

147

106

86

82

75

71

58

39

43

43

39

38

36

37

39

36

34

36

33

32

30

34 

31

1,786

57.6

2.22

2.55

Apr.

33

I!

61

100

319

423

3135

238

185

253

307

309

249

190

175

294

288

170

127

103

88

105

*96

84

67

73

72

71

177

244

5,329

178

6.85

7.62

May

108

78

106

79

68

61

57

46

39

52

48

47

47

40

40

43

40

33

33

32

28

25

31

33

26

23

56

52

33

148

224

1,776

57.3

2.20

2.54

June

~96~ 159

125

80

55

43

34

22

19

34

62

38

27

20

 16

27

29

16

13

12

12

12

11

14

11

1~9.4

19

11

9.6

1,045.0

34.8

1.34

1.49

July

8.9

8.0

*7.1

6.3

9.4

34

26

15

16

12

8.9

8.2

26

61

28

18

14

9.6

7.7

7.3

18

40

33

29

18

16

11

9.4

7.3

6.7

6.1

525.9

17.0

0.654

0.75

Aug.

*5.6

5.2

4.9

5.1

4.6

4.8

4.4

4.4

4.4

4.3

4.4

4.9

6.0

8.0

5.4

9.4

12

5.8

12- 31

10

9.4

7.1

11

10

6.5

5.4

4.8

6.2

17

22

256.0

8.26

0.318

0.37

Sept.

30

23

15

9.4

7.3

6.5

7.1

6.0

5.2

5.1

4.8

4.8

lil

7.4

17

49

72

BT

25

31

24

16

21

57

33

20

15

13

12

12

605.2

20.2

0.777

0.87

Calendar year 1955: Max 580 Mln 2.2 Mean 46.4 Cfsm 1.78 In. 24.22

Water year 1955-56: Max 580 Mln 4.3 Mean 53.4 Cfsm 2.05 In. 27.97

Peak discharge (base. 400 cfs). Oct. 16 (8:30 a.m.) 704 cfs (5.95 ft): Oct. 31 (7:15 a.m.) 

695 cfs (5.93 ft); Apr. 6 (8:30 p.m.) 620 cfs (5.76 ft); Apr. 11 (8 p.m.) 450 cfs (5.31 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 20-23, Dec. 27 to Jan. 3, Jan. 18, 19, 

Feb. 1, 3, 4, 16-18, 21-24, Mar. 10, 11, 15-29, 31, Apr. 2.
HUDSON KIVEK BASIN 75

Kayaderosseras Creek near West Milton, N. Y.

Location. Lat 43°02'25", long 73°54'30", on left bank 500 ft downstream from Glowegee 

Creek, 1 mile east of West Milton, Saratoga County, and 3-| miles northwest of Ballston 

Spa.

Drainage area. 90 sq mi, approximately. 

Records available .--July 1927 to September 1956.

~~Gage. Water-stage recorder. Datum of gage is 376.06 ft above mean sea level, datum of 

Average discharge. 29 years, 141 cfs .

Extremes . Maximum discharge during year, 1,670 cfs Oct. 17 (gage height, 6.11 ft); minimum, 30 cfs Aug. 18 (gage height, 1.29 ft).

1927-56: Maximum discharge, 4,710 cfs Mar. 18, 1936 (gage height, 10.78 ft, from 

floodmarks); minimum, 6.1 cfs Aug. 23, 1927 (gage height, 0.86 ft); minimum daily, 

13 cfs Aug. 24, 1927.

Remarks. Records good except those for periods of ice effect, which are fair. Occasional 

diurnal fluctuation at low flow caused by mills above station. Records of water temperatures for the water year 1956 are given in WSP 1450.

Revisions (water years) . WSP 741: Drainage area. WSP 1202: 1935-40.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 29 Apr. 30 to Sept. 30

1.4 

1.7 

2.0 

2.5

69

113

215

3.0 

4.0 

5.0 

6.0

351

699

1,120

1,610

1.3 

1.5 

2.0

48

113

Note.--Same as 

preceding table 

above 2.0 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Ttotal

Mean

Cfsm

In.

Oct.

86

62

50

47

44

207

413

211

139

107

90

77

69

68

368

1,250

1,270

581

*376

262

206

172

146

140

158

154

185

152

133 

516

1,120

8,859

286

3.18

3.66

Nov.

586

327

249

320

385

278

220

206

181

164

206

188

160

421

367

317

376

260

206

188

177

*164

156

194

174

150

133

135

115

117

7,120

237

2 .63

2.94

Dec.

107

100

108

296

429

241

156

148

127

122

110

104

100

92

90

90

96

102

100

82

80

76

68

70

86

100

80

56

54

56

52

3,578

115

1.28

1.48

Jan.

50

43

45

52

58

62

60

54

56

360

450

560

600

 3T7J

206

166

146

102

90

92

76

74

70

62

*60

56

54

54

50 

52

52

4,222

136

1.51

1.74

Feb.

50

50

49

48

54

56

58

62

68

74

76

82

88

81

79

*76

74

80

82

76

70

68

66

64

100

204

174

142

125

2,376

81.9

0.910

0.98

Mar.

112

106

117

166

172

144

262

424

345

260

217

210

190

180

155

118

130

150

135

122

125

125

125

122

110

114

108

*106

104 

108

105

4,967

160

1.78

2.05

Apr.

107

T33

166

246

705

947

963

680

532

672

799

895

840

649

581

883

1,150

695

518

421

366

401

392

559

284

501

*292

501

617

16,705

557

6.19

6.90

May

494

559

570

504

281

244

225

192

174

208

197

188

190

174

172

181

188

156

150

150

155

124

157

158

127

115

191

199

146 

559

486

6,752

217

2.41

2.78

June

393

260

352

279

194

158

139

115

103

122

178

129

103

*91

80

89

102

76

69

65

65

66

65

66

60

55

72

90

64 

56

3,752

125

1.39

1.55

July

55

51

*47

44

52

119

102

71

88

78

58

55

86

225

110

84

85

65

54

49

76

126

108

102

80

75

59

52

46 

45

41

2,578

76.7

0.852

0.98

Aug.

40

59

38

37

35

36

36

34

34

33

32

34

38

43

36

55

59

54

95

50

46

48

40

50

48

58

54

*53

47 

62

84

1,328

42.8

0.476

0.55

Sept.

129

92

70

54

47

43

45

59

36

55

55

36

56

55

82

138

194

165

90

103

87

68

74

179

155

89

71

65

57 

54

2,397

79.9

0.888

0.99

Calendar year 1955: Max 1,270 Min 20 Mean 157 Cfsm 1.74 In. 23.68

Water year 1955-56: Max 1,270 Min 32 Mean 176 Cfsm 1.96 In. 26.60

Peak discharge (base, 1,200 cfs). --Oct. 17 (3:30 a.m.) 1,670 cfs (6.11 ft); Oct. 31 (8:45 a.m.)

1,400 cfs (5.61 ft); Apr. 6 (9:30 p.m.)l,270 cfs (5.33 ft); Apr. 17 (4 a.m.) 1,340 cfs (5.47 ft).

* Discharge measurement made on this day .

Note. Stage-discharge relation affected by ice Dec. 10 to Jan. 13, Jan. 18 to Feb. 13, Feb. 16- 

18, 21-25, Feb. 29 to Mar. 2, Mar. 14-30.
76 HUDSON RIVER BASIN 

Hoosic River at Adams, Mass.

Location. --Lat 42°36'37", long 73°07'32", on right bank just downstream from Dry Brook, 

at Adams, Berkshire County, 0.5 mile upstream from Pecks Brook.

Drainage area . 46.3 sq mi.

Records available . October 1931 to September 1956.

~Gage. Water-stage recorder. Datum of gage is 837.01 ft above mean sea level, datum of 

Average discharge. --25 years, 94.5 cfs (adjusted for diversion).

Extremes . Maximum discharge during year, 1,250 cfs Apr. 16, 17 (gage height, 4.36 ft); 

minimum, 14 cfs Aug. 27, 28; minimum daily, 14 cfs Aug. 27, 28.

1931-56: Maximum discharge, 5,080 cfs Sept. 21, 1938 (gage height, 8.25 ft), from 

rating curve extended above 1,100 cfs on basis of computation of peak flow over dam; 

minimum daily, 12 cfs Aug. 2, 1936, Sept. 24, 25, Oct. 13, 1939, Oct. 26, 27, 1940, 

Oct. 9, 10, 1943.

Remarks . --Records good. Diversion above station for municipal supply of Adams. Some 

diurnal fluctuation caused by mill above station. Flow regulated by Cheshire Reservoir.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

(t)

Oct.

38

36

35

33

33

161

307

185

126

64

48

44

43

58

*790

720

586

372

390

337

291

257

230

219

269

*152

138

109

102

148

418

6,739

217

1.86

Nov.

224

137

118

220

390

330

275

278

224

171

193

224

263

463

372

307

390

275

213

187

160

137

125

142

118

106

98

94

85

*81

6,400

213

1.86

Dec.

77

77

81

113

116

87

75

74

72

68

66

66

64

64

66

66

62

62

60

b58

b57

b57

b55

53

64

59

53

50

48

48

48

2,066

66.6

1.86

Jan.

48

b46

46

*48

48

48

48

46

207

432^

224

182

160

100

85

81

74

62

57

59

55

53

53

51

50

48

48

48

48

51 

48

2,654

85.6

1.86

Feb.

46

48

46

b46

46

44

48

*46

48

48

46

48

46

46

48

52

44

46

46

44

b43

b41

b33

b22

b50

~60 130

41

b33

1,385

47.8

1.86

Mar.

b30

35

56

75

53

40

388

182

70

66

87

102

91

87

*81

b60

b94

72

70

93

134

134

132

130

bl!5

118

113

106

96

77

3,070

99.0

1.86

Apr.

75

75

85

144

482

510

407

224

213

224

320

382

372

337

337

642

831

*400

344

285

269

410

344

282

254

248

242

530

760

935

10,963

365

1.86

May

554

432

474

410

351

291

257

224

201

207

201

187

187

166

157

147

116

109

106

100

94

87

66

66

59

57

86

109

*83

104

152

5,840

188

1.86

June

142

109

193

163

127

120

111

100

91

91

102

89

83

75

70

66

62

59

53

50

46

46

43

43

40

40

40

41

38

3J>

2,369

79.0

1.86

July

35

32

*30

30

36

43

35

32

30

29

27

29

32

72

98

67

32

30

27

27

30

35

30

67

*60

22

20

22

29

18 

17

1,123

36.2

1.86

Aug.

17

17

17

17

16

16

16

16

16

16

16

16

17

17

16

16

15

15

17

16

16

15

15

15

15

15

14

14

*16

17 

18

495

16.0

1.86

Sept.

20

23

34

20

18

17

18

17

17

11

16

19

38

18

17

102

54

41

22

31

27

57

77

186

61

41

46

64

62

60

1,239

41.3

1.86

Adjusted for diversion

Mean 

Cf sm 

In.

219 

4.73 

5.46

215 

4.64 

5.19

Calendar year 1955 : 

Water year 1955-56 :

68.5 

1.48 

1.71

87.5 

1.89 

2.18

49.6 

1.07 

1.16

101 

2.18 

2.51

367 

7.93 

8.85

190 

4.1O 

4.74

Observed

Max 790 Mln 16 Mean 109 

Max 935 Mln 14 Mean 121

80.8 

1.75 

1.95

38.1 

0.823 

0.95

17.8 

0.384 

0.44

43.2 

0.933 

1.04

Adjusted

Mean 111 Cfsm 2. 40 In. 32.60 

Mean 123 Cfsm 2.66 In. 36.18

Peak discharge (base. 900 cfs). Oct. 15 (12 m.) 1,O40 cfs (3.96 ft); 11:30 p.m. Apr. 16 to 12:30 

a.m. Apr. 17, 1,250 efs (4.36 ft); Apr. 3O (9 to 10 a.m.) 1,O60 cfs (4.0O ft).

* Discharge measurement made on this day.

t Diversion, equivalent In cubic feet per second, for municipal supply of Adams.

b Stage-discharge relation affected by Ice.

Note. Discharge In cubic feet per second per square mile and runoff In Inches may represent natural flow because of regulation.
HUDSON RIVER BASIN 77

North Branch Hoosic River at North Adams, Mass.

Location. Lat 42°42'08", long 73°05'37", on left bank 0.4 mile downstream from Hudson 

Brook, at North Adams, Berkshire County, and 1-J miles upstream from mouth.

Drainage area. 39.0 sq mi.

Records available. June 1931 to September 1956.

Gage. Water-stage recorder. Concrete control since Sept. 23, 1938. Datum of gage is 

820.46 ft above mean sea level, datum of 1929. Prior to Sept. 22, 1938, at site 100 ft 

upstream at same datum.

Average discharge. 25 years, 99.2 cfs.

Extremes. Maximum discharge during year, 1,930 cfs Apr. 30 (gage height, 5.90 ft); minimum, 2.9 cfs July 4, Aug. 28; minimum daily, 4.4 cfs Aug. 28.

1931-56: Maximum discharge, 8,950 cfs Sept. 21, 1938 (gage height, 12.05 ft, from 

floodmarks), by computation of peak flow over dam; minimum, 2.3 cfs Sept. 5, 1949; minimum daily, that of Aug. 28, 1956.

Maximum discharge known, 9,980 cfs in November 1927, by computation of flow over dam.

Remarks. Records excellent except those for periods of ice effect, which are good, and 

those for periods of no gage-height record, which are fair. Some regulation at low 

flow caused by mill above station.

Revisions (water years) .--WSP 756: Drainage area. WSP 781: 1933(M). WSP 801: 1928(M).

Rating tables, water year 1955-56, except periods of Ice effect (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Jan. 9 Jan. 10 to Apr-. 16 Apr. 17 to Sept. 30

3.0 

3.2 

3.4 

3.7

14

38

79

174

4.0 

4.5 

5.0 

5.5

313

635

1,060

1,530

3.0

3.1

3.2 

3.4

3.7 

4.0 

4.5 

5.0

175

315

635

1,060

2.86

2.9

3.0

3.1 

3.3 

3.5

4.4

6.5

14

25

60

113

3.7 

4.0 

4.5 

5.0 

5.5

186

332

660

,060

,530

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

44

32

27

24

22

271

560

302

182

119

87

70

58

95

*1.510

952

1,090

492

473

260

182

142

116

119

204

*138

138

122

101

166

612

8,510

275

7.05

8.12

Nov.

251

174

138

247

297

297

276

313

219

174

182

190

198

447

292

228

265

178

142

125

106

92

84

128

98

82

70

68

54

*52

5,467

182

4.67

5.21

Dec.

47

44

49

74

J37_

63

47

46

40

37

35

35

32

31

31

30

35

34

30

b25

28

27

26

25

33

27

23

22

22

22

21

1,128

36.4

0.933

1.08

Jan.

21

20

21

20

20

20

19

23

b90

515

226

217

179

116

90

77

63

46

37

43

37

34

32

31

28

26

26

24

24

24

1,974

63.7

1.63

1.88

Feb.

23

23

23

23

25

23

24

*24

24

25

24

25

25

24

26

35

28

b27

26

25

23

b20

b21

b!9

b35

blOO

91

56

44

911

31.4

0.805

0.87

Mar.

43

41

50

56

48

43

134

TT6

74

61

54

68

56

54

*50

39

47

52

45

43

43

45

45

43

39

b40

b36

37

38

37

35

1,612

52.0

1.33

1.54

Apr.

35

40

58

106

331

4O6

372

222

171

197

272

362

36.4

320

320

815

903

*489

378

269

250

327

274

217

208

226

244

838

1,100

1.450

11,564

385

9.87

11.03

May

668

502

557

502

438

360

300

240

204

274

221

204

178

144

120

116

116

93

79

74

60

56

58

58

48

44

153

203

*117

174

6,551

211

5.41

6.25

June

130

113

297

182

133

107

84

67

58

60

74

52

44

35

29

25

24

20

18

16

16

18

16

16

14

13

18

28

17

14

1,738

57.9

1.48

1.66

July

12

11

*9.7

8.6

12

23

18

14

17

18

11

9.2

13

89

33

19

16

12

9.9

*9.7

11

16

17

46

29

39

19

15

12

9 2

9.2

587.5

19.0

0.487

0.56

Aug.

8^9.

8.5

8.5

7.8

7.8

7.8

7.1

6.5

7.1

5.4

5.4

5.4

5.9

6.5

6.5

5.9

4.9

4.9

5.4

5.4

5.9

7.1

5.9

5.4

5.4

5.4

4.9

4.4

*4.7

5.9

7.1

193.7

6.25

0.160

0.18

Sept.

7.8

23

28

12

9.2

9.Z

9.2

8.5

7.8

8.E

7.8

10

13

13

23

69

59

50

25

50

35

27

29

230

70

40

30

24

22

21

970.7

32.4

0.831

0.93

Calendar year 1955: Max 1,310 Mln 4.9 Mean 1O6 Cfsm 2.72 In. 36.84

Water year 1955-56: Max 1,450 Mln 4.4 Mean 113 Cfsm 2.90 In. 39.31

Peak discharge (base, 1,300 cfs). Oct. 15 (2 D.m.

1,490 cfs (5.46 ft); Apr. 16 (10:30 p.m.) 1,590 cfs

1,920 cfs (5.89 ft); Oct. 17 (2 to 2:30 p.m.)

5.56 ft); Apr. 30 (6 a.m.) 1,930 cfs (5.90 ft).

Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Dec. 21 to Jan. 4, Sept. 22-30; discharge estimated on basis of 

weather records, recorded range In stage, and records for Hooslc River at Adams and Walloomsac River 

near North Bennlngton, Vt.
78 HUDSON RIVER BASIN

Hoosic River near Williamstown, Mass.

Locat ion.--Lat 42°42 I 21", long V3°10'50", on left bank 1.0 mile upstream from Green River 

and 1-5- miles east of Williamstown, Berkshire County.

Drainage area.--132 sq mi.

Records available. July 1940 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 595 ft (from topographic map).

Average discharge. 16 years, 282 cfs.

Extremes. Maximum discharge during year, 3,450 cfs Apr. 17 (gage height, 8.11 ft), from 

rating curve extended above 1,800 cfs; maximum gage height, 8.51 ft Oct. 15; minimum 

discharge, 43 cfs Aug. 26, 27; minimum daily, 44 cfs Aug. 26.

1940-56: Maximum discharge, 13,000 cfs Dec. 31, 1948 (gage height, 14.85 ft), from 

rating curve extended above 4,300 cfs on basis of contracted-opening determination of 

peak flow; minimum, 5.8 cfs Aug. 30, 31, Oct. 26, 1940; minimum daily, 39 cfs Aug. 6, 

1955.

Remarks. Records good except those for periods of ice effect or shifting control and 

backwater from construction, which are fair. Diurnal fluctuation at low flow caused 

by mills above station. Flow regulated by Cheshire Reservoir.

Rating tables, water year 1955-56, except periods of ice effect or shifting 

control and backwater from construction (gage height, in feet, and 

discharge, in cubic feet per second)

2.8 

3.0 

3.5 

4.0

Oct. 1 to Apr. 5

127

264

455

Apr. 6 to Sept. 3O

909

1,460

2,050

2,180

106

215

4.0 

7.0 

7.2

685

2,670

2,810

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

123

103

95

89

85

373

1,040

617

439

275

211

183

160

198

*2.170

2,000

2,020

1,080

966

656

520

432

366

377

528

*393

377

328

290

372

1,240

18,106

584

4.42

5.10

Nov.

625

455

385

615

940

813

702

774

600

503

565

561

587

1.070

873

674

863

591

491

447

408

369

339

408

347

309

271

271

251

*2_25_

16,332

544

4.12

4.60

Dec.

208

194

202

292

320

244

194

191

183

172

162

162

155

152

155

150

148

148

148

132

135

130

128

122

150

135

125

120

115

110

110

5,092

164

1.24

1.43

Jan.

105

105

120

118

*114

112

105

100

450

1.130

639

595

511

324

257

231

214

175

156

162

148

141

141

136

134

129

130

125

120

130

125

7,184

232

1.76

2.02

Feb.

120

120

120

120

125

120

130

*125

122

125

120

140

135

120

160

160

135

130

122

120

115

105

98

88

250

360

250

170

135

4,140

143

1.08

1.17

Mar.

130

135

180

225

175

150

800

400

24O

210

240

280

240

*235

22O

185

190

190

180

190

270

280

270

260

250

240

230

220

205

185

175

7,380

238

1.80

2.08

Apr.

160

200

280

450

1,400

1,640

1,440

634

702

768

1,000

1,180

1,220

1,030

1,080

1,980

2,480

*1,360

1,110

844

773

1,070

958

773

690

718

695

1,480

2,360

2 , 790

33,466

1,116

8.45

9.43

May

*1.590

1,160

1,250

1,130

988

806

690

585

510

580

530

480

467

418

372

350

332

287

264

251

C33

220

207

207

182

170

292

431

*282

386

458

16,108

520

3.94

4.54

June

377

314

672

480

364

318

278

242

211

207

256

211

190

170

145

138

135

128

122

116

112

112

106

106

103

98

103

122

100

yz

6,128

204

1.55

1.73

July

84

84

*81

73

86

112

100

86

86

89

76

73

92

215

152

138

98

86

78

76

78

92

89

*157

164

122

89

76

84

73

61

3,050

98.4

0.745

0.86

Aug.

64

61

56

54

52

52

54

54

54

54

50

50

52

59

54

52

50

46

48

50

52

54

52

50

46

44

46

48

*52

59

M

1,635

52.7

0.399

0.46

Sept.

66

90

118

76

64

64

64

56

52

56

54

61

116

84

89

216

203

182

112

138

128

119

153

484

223

142

116

128

122

119

3,695

123

0.932

1.04

Calendar year 1955: Max 2,170 Min 39 Mean 310 Cfsm 2.35 In. 31.86

Water year 1955-56: Max 2,790 Min 44 Mean 334 Cfsm 2.53 In. 34.46

Peak discharge (base. 2.400 cfs). Oct. 15 (4 p.m.) 3,170 cfs (8.51 ft); Apr. 17 (12:30 a.m.) 

3,450 cfs (8.11 ft); Apr. 30 (10 a.m.) 3,200 cfs (7.76 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 21 to Jan. 3, Jan. 7-9, Feb. 22-24, Mar. 16- 

18~Shifting control and backwater from construction Jan. 27 to Apr. 5. Discharge in cubic feet 

per second per square mile and runoff in inches may not represent natural flow because ofregulation.
HUDSON RIVER BASIN 

Green River at Williamstown, Mass.

79

Location. Lat 42°42'32", long 73°11'SO", on left bank 0.1 mile upstream from bridge on 

State Highway 2 at Williamstown, Berkshire County, and 0.8 mile upstream from mouth.

Drainage area.--42.6 sq mi.

Records available.--September 1949 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 615 ft (from topographic map).

Average discharge. 7 years, 87.6 cfs.

Extremes. Maximum discharge during year, 1,110 cfs Apr. 17 (gage height, 4.17 ft); minimum, 4.2 cfs Aug. 28, 29.

1949-56: Maximum discharge, 2,010 cfs Nov. 26, 1950 (gage height, 5.28 ft), from 

rating curve extended above 1,300 cfs by logarithmic plotting; minimum, 3.4 cfs Sept. 1, 

3, 1953.

Flood of Dec. 31, 1948, reached a stage of about 7.5 ft, from floodmarks.

Remarks. Records good except those for periods of ice effect, which are fair. Slight diurnal fluctuation caused by mill above station.

Rating tables, water year 1955-56, except periods-of Ice effect (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 14, 

Jan. 10 to Apr. 16 Nov. 15 to Jan. 9 Apr. 17 to Sept. 30

1.4

1.6 

1.8 

2.1

2.5 

3.0 

3.5

195

406

670

1.5

1.6 

1.9 

2.2 

2.5 

3.0

18

24

53

101

175

406

4.2 

5.8 

8.6

1.8 54

2.2 135

2.5 221

3.0 415

4.0 990

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

18

16

15

14

15

70

117

107

80

58

48

40

35

36

106

164

226

162

195

142

114

95

82

93

113

*91

84

76

73

119

258

2,860

92.3

2.17

2.50

Nov.

174

142

123

172

223

230

220

230

209

183

202

195

189

360

285

252

283

206

172

152

134

118

109

109

95

86

77

76

66

*63_

5,135

171

4.01

4.48

Dec.

58

56

57

79

77

63

54

52

51

48

44

41

40

41

42

38

40

37

33

28

31

30

29

28

36

30

26

23

21

23

22

1,278

41.2

0.967

1.12

Jan.

22

21

22

*22

23

22

19

19

50

280

144

139

125

78

71

66

59

46

44

50

42

38

36

34

33

32

33

32

30

32

1.8

1,692

54.6

1.28

1.48

Feb.

26

27

29

24

30

26

27

*27

27

27

27

35

35

29

45

50

32

26

30

28

22

23

25

22

200

166

73

55

47

1,240

42.8

1.00

1.08

Mar.

51

92

139

132

73

56

434

171

118

99

125

126

110

*97

80

68

68

72

78

72

63

69

61

56

50

54

48

47

45

45

44

2,843

91.7

2.15

2.48

Apr.

48

55

101

377

614

484

401

269

230

272

286

312

312

290

308

645

*764

495

370

287

262

329

291

262

238

231

218

367

598

692

10,408

347

8.15

9.09

May

410

337

354

302

266

248

224

193

170

184

161

156

148

130

116

111

103

92

86

80

73

68

71

68

61

57

90

96

*79

*134

161

4,829

156

3.66

4.22

June

158

138

247

202

167

140

121

103

92

92

90

77

71

61

54

50

46

41

38

35

34

33

31

28

27

25

28

27

23

21

2,300

76.7

1.80

2.01

July

19

18

*17

15

21

26

20

18

17

16

14

14

20

47

22

20

17

14

*13

12

14

17

14

17

17

13

11

9.6

8.9

8.9

8.9

519.3

16.8

0.394

0.45

Aug.

8.6

8.2

7.6

7.3

7.0

6.7

7.0

7.0

7.6

6.4

5.8

5.6

6.4

7.3

5.8

5.4

5.1

5.0

6.0

6.2

5.8

6.2

5.6

5.8

5.8

4.8

4.6

*4.4

4.6

6.0

1JL

196.6

6.34

0.149

0.17

Sept.

17

24

23

10

8.2

7.3

7.9

6.7

6.0

6.0

5.8

6.3

23

12

12

44

38

40

22

35

26

20

24

126

64

44

34

30

28

25

775.2

25.8

0.606

0.68

Calendar year 1955 : Max 425 Min 4.2 Mean 79.0 Cfsm 1.85 In. 25.19

Water year 1955-56 : Max 764 Mln 4.4 Mean 93.1 Cfsm 2.19 In. 29.76

Peak discharge (base, 65O cfs). --Feb. 25 (8 p.m.) 808 cfs (3.73 ft): Mar. 7 (6:3o a.m.) 927 cfs

(3.91 ft); Apr. 5 (3:30 p.m.) 969 cfs (3.97 ft); Apr. 17 (l to 2 a.m.) 1,110 cfs (4.17 ft); Apr. 30 

(7:30 to 8 a.m.) 934 cfs (3.92 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 16 to Jan. 4, Jan. 7-10, 19-25, 28, 29, 31, 

Feb. 1, 3-6, 16, 17, 20-25, 29, Mar. 1, 17-22, 25-29.
80 HUDSON RIVER BASIN

Little Hoosic River at Petersburg, N. Y.

Location. Lat 42°45'55", long 73°20'20", on left bank 100 ft downstream from highway 

bridge, 1 mile downstream from Petersburg, Rensselaer County, and 4.9 miles upstream 

from mouth.

Drainage area. 56.1 sq mi.

Records available. July 1951 to September 1956.

Gage. Water-stage recorder. Datum of gage is 587.40 ft above mean sea level, datum of 1929.

Average discharge. 5 years, 102 cfs.

Extremes. Maximum discharge during year, 1,780 cfs Mar. 7 (gage height, 5.83 ft); mini-

 mum, 4.5 cfs Aug. 23, 24, 26-28 (gage height, 2.17 ft).

1951-56: Maximum discharge, 2,910 cfs June 1, 1952 (gage height, 6.80 ft); minimum, 

2.9 cfs Aug. 31, Sept. 1-3, 1953; minimum gage height, 1.855 ft Oct. 2, 1952.

Flood of Dec. 31, 1948, reached a stage of 9.4 ft, from floodmarks (discharge, 7,470 

cfs, on basis of contracted-opening determination of peak flow).

Remarks.--Records good except those for periods of ice effect or shifting control, which 

are fair.

Rating tables, water year 1955-56, except periods of Ice effect or shifting 

control (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 7 Mar. 8 to Sept. 30

2.2 

2.4 

2.7 

3.0

86

157

3.5 

4.0

5.0

322

540

1,120

2.1

2.2

2.3

2.4 

2.6

2.3 

5.8

51

2.9 

3.5 

4.0

5.0

114:

315

540

1,120

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

14

12

15

12

12

35

65

86

71

52

41

36

30

29

36

70

152

109

*e!33

e92

e76

e64

e55

e66

el!2

e92

e84

e76

e69

el39

*e331

2,263

73.0

1.30

1.50

Nov.

227

177

147

239

315

349

311

326

274

237

278

250

224

366

3TT

292

274

217

186

163

*147

129

121

126

105

94

84

84

73

69

6,195

206

3.67

4.11

Dec.

62

57

58

96

92

75

68

*62

57

53

50

47

44

43

43

40

40

43

38

34

32

30

29

29

32

36

30

26

22

20

ii

1,407

45.4

0.809

0.93

Jan.

19

18

19

20

22

22

20

20

24

220

180

150

129

S8

76

*71

65

54

47

49

43

37

37

34

32

30

29

28

28

29

26

1,666

53.7

0.957

1.10

Feb.

24

25

27

23

28

26

27

26

24

23

22

37

32

28

39

47

*40

29

30

28

27

26

26

27

290

219

103

84

76

1,458

50.3

0.897

0.97

Mar.

70

131

189

182

121

99

*738

569

250

201

309

245

204

174

141

120

106

100

98

*100

90

86

82

78

68

70

65

62

60

60

58

4,726

152

2.71

3.13

Apr.

T4~ 62

153

*745

910

793

642

463

395

399

417

453

435

390

408

891

993

6TT

458

360

299

340

319

284

243

232

211

271

468

726

13,445

448

7.99

8.91

May

510- 453

319

288

261

228

197

165

141

147

128

117

109

100

*90

90

86

77

71

65

60

56

56

55

49

46

m

77

62

119

117

4,237

137

2.44

2.81

June

104

95

159

ITS

112

100

86

75

67

67

69

58

56

*45

39

34

32

28

27

24

23

22

21

21

19

18

19

19

17

16

1,597

53.2

0.948

1.06

July

14

13

12

10

14

15

13

11

12

11

9.6

- 8.9

12

25

T4

13

12

10

9.6

8.9

9.6

11

11

14

*17

15

10

8.9

7.6

7.6

7.0

366.7

11.8

0.210

0.24

Aug.

7.0

7 S Q

6.4

5.8

5.8

5.8

5.8

6.4

5.8

5.8

5.8

5.8

*5.8

5.8

5.4

5.4

4.9

4.9

5.8

5.4

5.4

5.8

4.9

5.4

4.9

4.5

*47S~

4.5

4.9

5.4

5.8

172.6

5.57

0.099

0.11

Sept.

7.0

26

18

10

7.6

7.0

6.4

5.8

5.4

574

5.4

5.8

6.4

6.6

7.0

17

20

23

14

25

20

15

15

~56" 102

36

27

23

21

19

556.8

18.6

0.332

0.37

Calendar year 1955: Max 565 Mln 3.9 Mean 85.8 Cfsm 1.53 In. 20.75

Water year 1955-56: Max 993 Mln 4.5 Mean 104 Cfsm 1.85 In. 25.24

Peak discharge (base, 1,250 cfs). Mar. 7 (6 a.m.) 1,780 cfs (5.83 ft)j Apr. 5 (4 p.m.) 1,430 cfs 

5.42 ft)j Apr. 16 (9:15 p.m.) 1,630 cfs (5.67 ft).

* Discharge measurement made on this day.

e Shifting-control method used.

Note.--Stage-discharge relation affected by Ice Dec. 7, 8, 12, 13, Dec. 16 to Jan. 12, Jan. 18 to 

FebTT, Feb. 14, 16-25, 29, Mar. 1, 16-22, 24-26, 28, 29, Apr. 2 (no gage-height record Dec. 21-29).
HUDSON RIVER BASIN 81

Walloomsac River near North Bennington, Vt.

Location. Lat 42°54'47", long 73 "15'25", on left bank 0.6 mile downstream from Paran Creek 

and 1.4 miles south of North Bennington, Bennington County.

Drainage area. 111 sq ml.

Records available.--June 1931 to September 1956.

Gage. Water-stage recorder. Altitude of gage Is 525 ft (from topographic map).

Average discharge .--25 years, 229 cfs.

Extremes. Maximum discharge during year, 4,250 cfs Apr. 30 (gage height, 8.30 ft), from 

rating curve extended above 2,800 cfs on basis of contracted-opening determination of 

peak flow at gage heights 10.13, 10.49, 11.50, and 12.04 ft, and slope-area determination and computation of flow over dam at gage height 12.04 ft; minimum, 30 cfs 

Aug. 26; minimum daily, 34 cfs Aug. 26.

1931-56: Maximum discharge, 8,450 cfs Sept. 21, 1938 (gage height, 12.04 ft), from 

rating curve extended above 2,800 cfs as explained above; minimum, 4 cfs Sept. 27, 1932; 

minimum daily, 28 cfs Sept. 13, 1931.

Remarks.--Records good except those for periods of ice effect, which are fair. Diurnal 

fluctuation caused by powerplants above station.

Revisions (water years).--WSP 781: 1933(M).

Rating table, water year 1955-56, except periods of Ice effect

height, in feet, and discharge, 

30

in cubic feet per second)

1.7 

2.0 

2.5 

3.0

210

415

4.0 

5.0

7.0

7.1

930

1,560

3,080

3,160

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

5

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Tote]

Mean

Cfsm

In.

Oct.

157

96

81

75

13

240

694

510

562

251

194

170

150

156

*806

826

1.570

911

700

464

554

283

240

241

*390

295 

291

279

259

259

695

12,052

589

5.50

4.04

Nov.

464

328

279

354

474

453

415

469

375

316

350

337

352

543

492

402

456

354

508

275

255

232

217

279

240

207 

191

181

*166

158

9,882

329

2.96

3.31

Dec.

150

142

147

191

221

181

137

137

129

122

114

117

114

105

114

112

105

112

107

87

100

95

90

105

130

100 

87

87

83

83

JL1

5,685

119

1.07

1.23

Jan.

79

77

83

*81

79

79

75

13

150

640

496

393

352

228

191

170

156

132

110

117

110

102

107

102

100

96 

98

96

94

98

94

4,838

156

1.41

1.62

Feb.

87

92

92

83

94

90 *94

92

90

90

90

102

107

100

112

140

105

102

98

94

87

77

85

83

306

460 

271

178

135 _

3,636

125

1.13

1.22

Mar.

125

170

263

516

204

150

505

562

251

194

220

285

221

*200

170

142

155

150

140

157

129

152

140

140

122

127 

124

122

119

119

JJL2

5,724

185

1.67

1.92

Apr.

124

142

247

700

1,160

978

842

570

428

446

500

565

590

520

510

1,040

*1,520

864

700

555

474

478

460

415

371

380 

375

864

1,770

5.150

21,758

725

6.53

7.28

May

1.550

1,040

1,010

1,010

936

832

749

665

570

771

640

610

590

482

595

350

358

512

267

252

252

225

221

240

197

191 

458

550

545

*456

555

16,797

542

4.88

5.65

June

515

402

560 44"6

558

285

252

200

191

191

255

194

184

158

140

129

119

110

100

100

98

102

96

102

94

90 

135

161

105

94

5,944

198

1.78

1.99

July

87

79

*75

70

79

117

96

83

79

98

79

71

85

258

132

98

94

*79

71

66

64

71

83

110

83

85 

75

75

68

62

62

2,752

88.1

0.794

0.92

Aug.

58

57

54

52

50

50

50

47

46

46

46

46

46

49

46

46

44

46

73

55

52

54

52

54

59

1! *41

40

46

50

1,530

49.4

0.445

0.51

Sept.

54

66

100

60

54

52

55

54

50

11

47

47

49

50

71

93

162

144

81

122

105

79

77

424

194

119 

92

79

75

71

2,771

92.4

0.832

0.93

Calendar year 1955: Max 1,570 Min 43 Mean 228 Cfsm 2.05 In. 27.91

Water year 1955-56: Max 3,150 Min 54 Mean 250 Cfsm 2.25 In. 30.60

Peak discharge (base. 2.000 cfs). Oct. 17 (4:50 p.m.) 2.990 cfs (6.89 ft): 12 p.m. Apr. 16 to

1 a.m. Apr. 17, 2,120 cfs (5.78 ft); Apr. 50 (7 a.m.) 4,250 cfs (8.50 ft).

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 20-27, Dec. 31 to Jan. 3, Jan. 8, 9, 19, 22, 

24, Feb. 1, 23, 24, 29, Mar. 1, 17, 18.
82 HUDSON RIVER BASIN

Hoosic River near Eagle Bridge, N. Y.

Location. Lat 42"56'10", long 73"22'30", on right bank three-quarters of a mile down-

 stream from Walloomsac River and if miles southeast of village of Eagle Bridge,

Rensselaer County. 

Drainage area. 510 sq mi.

Records available. August 1910 to March 1922, July 1923 to September 1956. 

Gage.--Water-stage recorder. Datum of gage is 355.41 ft above mean sea level, datum of

 1929. Prior to March 1922, chain gage and July 24, 1923, to July 18, 1936, water-stage

recorder, at site a quarter of a mile upstream at different datum. 

Average discharge.--44 years (1910-21, 1923-56), 924 cfs. 

Extremes. Maximum discharge during year, 10,900 cfs Apr. 30 (gage height, 10.61 ft); min-

 imum, 73 cfs Aug. 29, 30 (gage height, 3.175 ft, from recorded range in stage); minimum 

daily, 101 cfs Aug. 5.

1910-22, 1923-56: Maximum discharge, 55,400 cfs Dec. 31, 1948 (gage height, 21.15 

ft, from high-water mark in gage house), from rating curve extended above 13,000 cfs on 

basis of peak flow over downstream dams and contracted-opening determinations at gage 

heights 17.8 and 21.15 ft; minimum, 24 cfs Sept. 14, 1913; minimum daily, 30 cfs 

Sept. 14, 1913.

Revisions. Figures of maximum discharge for the water years 1920 and 1921 have been 

revised to 9,730 cfs Mar. 27, 1920 (gage height, 10.33 ft, from graph based on gage 

readings; maximum gage height, 13.8 ft Mar. 13, ice Jam) and 12,100 cfs Mar. 10, 1921 

(gage height, 11.4 ft, from graph based on gage readings), superseding those published 

in WSP 501 and 521, respectively. The minimum gage height for the water year 1913 has 

been revised to 6.33 ft Sept. 24, 1913, superseding figure published in WSP 381.

Remarks. Records good except those for periods of ice effect, no gage-height record, or 

shifting control, which are fair. Diurnal fluctuation at medium and low flow caused by 

powerplants above station.

Revisions. WSP 741: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect or shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 16 to Jan. 10 Jan. 10 to Sept. 30

3.7 219

4.0 365

4.5 716

5.0 

6.0 

7.0

1,210

2,440

3,820

3.7 

4.2

5.0

224

479

1,110

6.0 

7.0 

8.0

2,290

3,490

4,790

3.3

3.6 

4.0 

4.5

188

370

707

5.0 1,170

6.0 2,410

8.0 5,730

10.0 9,620

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

377 

322

274

254

240

438

2,530

1,720

1,440

938

707

596

513

487

2,400

e3,580

*4.160

*3,200

*2,420

1,830

1,400

1,150

956

912

1,460

1,290

1,180

1,030

947

928

*2 , 880

42,559

1,373

2.69

3.10

Nov.

2,100 

1,510

1,290

1,570

2,650

2,490

2,280

2,380

2,030

1,710

1,920

1,830

1,790

2,680

2.750

2,210

2,480

1,980

1,620

1,390

*1,370

1,210

1,090

1,220

1,090

965

860

844

780

680

50,769

1,692

3.32

3.70

Dec.

660 

623

616

898

1,060

900

740

*600

600

562

523

520

500

460

470

430

440

470

440

350

250

310

330

390

450

440

350

300

280

270

260

15,492

500

0.980

1.13

Jan.

260 

230

250

270

280

280

2 SO

250

310

2.500

2,210

1,800

1,630

1,100

871

*774

715

600

540

560

500

470

470

430

400

370

360

350

360

380

360

20,140

650

1.27

1.47

Feb.

350 

360

350

330

360

364

380

380

358

350

330

404

464

380

460

640

*440

410

393

370

350

320

330

350

1,620

2.760

1,180

810

580

16,173

558

1.09

1.18

Mar.

560 

806

1,670

1,850

1,160

791

4.020

2,590

1,570

1,200

1,450

1,710

1,320

1,200

1,010

831

660

860

800

720

680

716

749

762

636

677

637

580

600

600

556

33,971

1,096

2.15

2.48

Apr.

563 

TOT

1,320

4,140

*6,870

*5,790

5,030

3,250

2,500

2,660

3,010

3,390

3,590

2,960

3,010

4,930

8,590

4,960

3,840

2,940

2,420

2,800

2,720

2,380

2,020

2,000

1,860

2,830

6,320

9.510

108,710

3,624

7.11

7.93

May

5.670 

4,120

3,880

3,680

3,390

2,890

2,510

2,150

1,840

2,020

1,950

1,740

1,690

1,480

*1,290

1,190

1,190

1,060

966

893

810

783

741

780

676

629

952

1,470

1,050

1,190

1,710

56,390

1,819

3.57

4.11

June

1,620 

1,300

1.950

1,730

1,370

1,170

992

*871

774

749

899

757

686

604

534

485

470

425

365

370

555

566

525

528

315

294

504

410

514

270

21,576

715

1.40

1.56

July

261 

246

234

219

235

510

298

266

274

298

257

225

256

510

454

559

512

*255

228

217

172

215

262

278

512

528

259

202

192

223

186

8,519

268

0.525

0.61

Aug.

m169

152

101

157

160

154

156

150

125

106

160

160

136

120

116

118

137

162

141

156

138

*128

134

114

150

150

150

120

140

4,306

139

0.275

0.31

Sept.

120 

165

334

256

220

200

190

160

150

165

175

150

155

155

135

140

480

860

600

520

600

440

400

920

1.000

740

580

480

430

590

11,510

577

0.739

0.82

Calendar year 1955: Max 4,160 Min 112 Mean 917 Cfsm 1.80 In. 24.42

Water year 1955-56: Max 9,310 Mln 101 Mean 1,064 Cfsm 2.09 In. 28.40

Peak discharge (base. 7.400 cfs). Apr. 5 (7:15 P.m.) 8.710 cfs (9.55 ft)s Apr. 17 (6 a.m.) 10,200 

cfs (10.27 ft)j Apr. 30 (12:30 p.m.) 10,900 cfs (10.61 ft).

* Discharge measurement made on this day.

e Shifting-control method used.

Note.--No gage-height record Nov. 20, 21, Aug. 26 to Sept. 2, Sept. 5-50j discharge estimated on 

basis of recorded range In stage, weather records, powerplant records, and records for Batten Kill at 

Battenvllle. Stage-discharge relation affected by Ice Nov. 27, 29, 50, Dec. 1, 5-9, Dec. 12 to 

Jan. 10, Jan. 18 to Feb. 5, Feb. 10, 11, 14-18, 21-24, 29, Mar. 1, 17-21, 28, 29 (no gage-height 

record Dec. 5-7).
HUDSON RIVER BASIN 83

Hudson River at Meohanicvllle, N. Y.

Location. Lat 42°54'45", long 73°40'45", on right bank at dam of West Virginia Pulp & 

Paper Co. at Mechanicville, Saratoga County, three-quarters of a mile upstream from 

Anthony Kill and 1^- miles downstream from Hoosic River.

Drainage area. 4,500 sq mi.

Records available. October 1887 to September 1956.

Gage. Water-stage recorder. Prior to 1911, staff gage at same site and datum.

Average discharge. 69 years, 7,431 ofs.

Extremes. Maximum daily discharge during year, 32,900 cfs Apr. 30; minimum daily, 2,030 

cfs July 4.

1887-1956: Maximum discharge, 120,000 cfs Mar. 28, 1913; practically no flow for 

short periods when plant was shut down.

Since 1930, maximum discharge, 118,000 cfs Jan. 1, 1949.

Remarks. Discharge computed from flow over spillway, through wheels and through lock of 

Champlain Canal. Figures of daily discharge given herein are those for 24 hours 

beginning at 7 a.m. of the day indicated. Since 1930, flow appreciably regulated by 

Sacandaga Reservoir (see p. 63) and Indian Lake Reservoir (see p. 48). During canal 

navigation season, water is diverted through Glens Falls feeder and Bond Creek (see 

p. 70,71) into Lake Champlain basin and occasionally water may be received from that 

basin through summit level of Champlain Canal at Dunham Basin. No adjustment made for 

these diversions.

Cooperation. Records of discharge over spillway and through wheels furnished by West 

Virginia Pulp & Paper Co.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

l

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30 

31

Itotal

Mean

Cfsm

In.

Oct.

3,420

2,240

2.160

3,600

3,930

4,960

5,580

6,410

5,560

5,050

5,220

4,860

4,280

4,740

5,560

10,600

14,800

12,700

13,600

11,400

9,690

8,650

6,460

5,930

7,840

7,740

7,570

7,640 

7,020

6,820 

15 . OOP

221,030

7,130

_

-

Nov.

18.600

13 , 400

11,900

14,200

16 , 700

14,900

14,300

13,100

12 , 400

11,200

11,500

11,300

10,300

13,800

13 , 100

12,200

12 , 600

11,600

11,000

10,800

9,720

9,210

8,800

8,710

8,500

8,160

7.620

8,060 

8,950

8,940

345,570

11,520

_

-

Dec.

8,500

8,650

8,520

9,350

9.560

8,840

8,690

7,190

7,250

6,840

5,940

5,990

6,940

6,400

6,380

6,160

6,040

5,220

5,500

5,400

5,200

5,020

4,920

5,040

5,420

3,520

5,460

6,120 

5,760

5,420 

4,980

198,020

6,588

_

-

Jan.

3,060

4,000

5,080

5,120

5,000

5,160

4,800

2.880

3,760

11,700

11,900

12.500

10,500

8,220

6,080

5,860

7,100

6,440

5,820

5,960

5,660

3,760

4,720

5,360

5,540

5,020

5,040

4,980 

3,880

4,620

4,980

184,500

5,945

_

-

Feb.

4,820

5,060

4,760

4,600

3.520

4,440

5,280

5,120

5,140

4,900

4,840

3,420

4,760

5,240

5,000

5,560

5,520

4,880

3,840

4,600

4,860

4,840

4,720

4,840

6,440

7.120

6,240

5,700 

5,500

145,160

5,006

_

-

Mar.

5,140

5,600

7,780

7,940

8,180

7,180

15 , 900

14.100

10,400

8,760

7,540

9,900

9,160

8,880

7,680

6,840

5,440

4,960

5,800

6,400

6,400

6,120

6,140

5,900

4.800

5,400

5,780

5,680 

5,440

5,480 

5,540

224,260

7,254

_

-

Apr.

3.650

5,200

9,180

16,700

26,800

25,8OO

21,600

15,600

14,700

15 , 900

16,OOO

16,700

17,800

16,400

16,400

22.OOO

50,500

25,100

21,500

17,500

15,200

14,700

14 , 200

12 , 800

11,400

10,700

10,200

11,100 

20,400

52.900

508,050

16,950

-

-

May

50.000

25,400

21,800

19,700

18,600

17,200

15,700

14,000

12 , 300

12,000

11,300

11,300

11,000

10,700

10,700

10,900

11,800

10,900

9,850

7,890

7,010

7,200

7,560

6,960

6,880

6,810

4.940

7,410 

8,860

9,770

12,200

378,640

12,210

_

-

June

16,200

16,2OO

16.400

16,000

13,900

12,200

10,500

8,990

8,140

6,210

7,050

7,540

,390

,560

,550

,070

,860

,070

,060

,050

,510

,450

,400

,850

.740

,400

,570

,180 

,890

,920

224,170

7,472

-

-

July

2,260

2,820

4,190

2.050

2,880

4,120

4,560

2,810

5,570

4,780

5,110

5,170

4,590

5,590

3,890

4,710

5.660

5,170

4,900

4,460

4,040

2,340

5,130

4,470

4,850

4,570

4,790

4,180 

2,890

3,380 

4,310

126,020

4,065

-

-

Aug.

4,750

4,670

4,570

4,140

2,550

2,860

4,150

4,160

4,200

4,510

4,110

2,490

5,100

4,490

4,470

5,950

4,060

4,100

2,650

5,590

4,640

4,080

3,940

5,730

3,900

2,570

2,480

4,070 

4,120

5,890 

5.400

119,770

3,864

-

-

Sept.

5,820

4,440

5,070

6,220

4,990

4,440

4,440

4,050

2,920

2,830

4,370

4,030

4,000

4,580

4,380

3,000

5,150

6,640

5,760

5,560

6,070

4,860

3,670

6,290

7,190

5,710

5,400

2.750 

5,420

4,620

142,450

4,748

-

-

Calendar year 1955 : Max 33,000 Min 1,010 Mean 7,262 Cfsm 1.61 In. 21.92

Water year 1955-56 : Max 32,900 Min 2,030 Mean 7,698 Cfsm 1.71 In. 23.29
84 HUDSON RIVER BASIN

Black River Canal (flowing south) near Boonville, N. Y.

Location. Lat 43°27 I 20", long 75°19'25", on left bank at lock 69, 2 miles south of Boonville, Oneida County.

Records available. September 1915 to September 1942 (canal seasons only), October 1942 to 

September 1956.

Sage . --Water-stage recorder and concrete control. Datum of gage is 1,105.56 ft above mean 

sea level, datum of 1929. Prior to June 7, 1929, station was operated as a slope station on summit level of canal. Auxiliary water-stage recorder with concrete control on 

right bank of Lansingkill spillway, 100 ft downstream from spillway headgates , 600 ft 

upstream from lock 70, and half a mile upstream from lock 69.

Extremes . --1915-56 : Maximum daily discharge recorded, 323 cfs Nov. 30, 1915; practically 

no flow at times when no water is being diverted.

Remarks . Records good except those for periods of no gage-height record at auxiliary gage, 

which are fair, and those for periods of ice effect at main gage, which are roughly approximate. This record shows combined flow in Black River Canal and Lansingkill spillway, and represents total diversion from Black River at Porestport , through Porestport 

feeder, into Mohawk River basin. Discharge during period Nov. 2 to May 10, when no 

water was diverted , made up of leakage through headgates and runoff from area draining 

into canal above station.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

s

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

83

80

70

60

50

64

79

60

45

56

66

64

62

62

63

86

7T

52

40

31

27

26

24

25

35

36

35

19

*7.0 O"

12

1,497.2

48.3

-

-

Nov.

6.8

S7o

1.4

1.4

1.2

1.1

1.0

.9

.8

.7

.7

.8

.8

.8

.8

.7

.7

.6

75- .5

.5

*.5

*.5

.8

.6

.6

.5

.5

.8

.6

30.1

1.00

-

-

Dec.

0.5

.4

.4

.6

jj_

.6

.6

.5

.5

.5

.4

.4

,4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

,2_

11.9

0.38

-

-

Jan.

0.2

.2

.2

.2

.2

.2

.2

.2

.1

72

.3

7F

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.2

0.20

-

-

Feb.

0.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.2

*.2

*.2

.2

.2

.2

.3

.3

.4

.4

.5

.7

1.1

1.3

T73

1.2

1.1

12.6

0.43

-

-

Mar.

1.3

1.4

2.2

2.5

1.2

.9

.9

2.2

2.9

5.2

2.8

2.4

1.9

1.2

.9

.9

.8

.7

.6

*.6

.6

.6

.6

.6

.6

.6

.6

.5

75

.5

.5

37.7

1.22

-

-

Apr.

 0.5!"5~

.6

1.5

4.0

3.7

3.6

3.4

3.0

2.8

2.9

2.3

1.5

1.1

1.1

1.4

1.2

.9

.8

.9

.9

.9

.8

.7

.7

.7

.7

.7

.7

 °

45.3

1.51

-

-

May

0.6

.5

.3

.3

.3

.2

.2

.2

.1 72"

.3

.4

.4

.3

.2

.2

4.4

5.1

7.0

6.0

4.7

4.3

3.5

*4.5

3.7

3.8

4.3

3.9

3.4

13 

IT

87.3

2.82

-

-

June

BTS" 6.6

6.2

5.4

3.4

1.3

1.3

1.4

1.4

1.4

1.3

1.2

1.1 TTT

1.6

2.9

2.8

2.6

2.3

1.9

2.0

1.9

1.8

1.6

1.5

1.4

1.4

1.4

2.4

3.7

72.1

2.40

-

-

July

3.6

3.4

3.2

2.9

9.7

~2.0 14

1.8

574

2.4

2.4

2.4

*2.5

3.5

3.1

2.7

2.3

2.3

2.3

2.2

2.1

2.1

2.1

2.3

2.2

2.2

2.3

2.3

2.1

2.0

1.8

94.6

3.05

-

-

Aug.

1.8

1T8

1.8

1.9

1.9

1.9

1.9

2.0

1.9

2.0

2.0

1.9

2.0

2.2

2.2

2.2

2.2

2.2

2.4

2.9

3.8

4.4

5.2

6.3

4.9

4.1

3.6

3.4

3.4

3.6

8.8

92.6

2.99

-

-

Sept.

9.6

4.2

2.6

§-*!

2.6

13

20

T2

7.7

5.6

*4.9

4.8

4.5

4.2

4.3

4.1

8.1

9.6

7.0

20

9.6

3.0

2.7

2.7

2.8

2.7

2.6

2.6

2.6

2 5

185.0

6.17

-

-

Calendar year 1955: Max 98 Min 0.2 Mean 25.2 Cfsm - In.

Water year 1955-56: Max 86 Min 0.1 Mean 5.94 Cfsm - In. -

* Discharge measurement made on this day at base gage.

Note.--Ho gage-height record at auxiliary gage Oct. 8-10, 17, 18, June 7 to July 1, July 8-13, 

Aug. 19-26, Sept. 12-16, 23-27; discharge estimated from reconstructed gage-height graph based on 

recorded range In stage, weather records, and records at base gage. Stage-discharge relation affected by ice at base gage Dec. 7, lo, 15-17, Dec. 20 to Jan. 4, Jan. 10 to Feb. 25, Feb. 28 to 

Mar. 2, Mar. 5, 16-19, 25 (doubtful gage-height record Jan. 26 to Feb. 15; no gage-height record 

Dec. 21 to Jan. 4).
HUDSON RIVER BASIN 

Mohawk River below Delta Dam, near Rome, N. Y.

85

Location. -Lat 43°15'50", long 75°26'10", on right bank at Spring Brook fish hatchery, 

1 mile downstream from Delta Dam and 4 miles north of Rome, Oneida County.

Drainage area. 150 sq mi.

Records available. -October 1927 to September 1956 in reports of Geological Survey DeStSSP engineer1 a^sfrveyor26 (PPl ° P tO J^ 1921 ' ^ ^^5 ^ ln rep°r?S of

Average discharge. 35 years (1921-56), 397 cfs (unadjusted).

u year ' 2 ' 6}° cfs May 31 'gaee height, 6.46 ft); miniiQ9T ' ( fage helght. °- 89 ft ); minimum daily, 81 cfs Oct. 17. 

mum nf^ qS?^? d iQ^3Fge ' 8 1 ' 560 cfs Oot ' 2 < 1945 (gage height, 11.18 ft); minimum, 30 cfs Sept. 27, 1945 (gage height, 0.65 ft); minimum daily* 45 cfs Jan. 17, 1931.

Rem§nrinr^C ^dS e?ce"ent excePt fc hose for period of shifting control, which are good. 

During canal navigation season, water is diverted from Black River through Forestport 

eiV a?d Bla°,k ?lver Canal < fl °wing south) into Delta Reservoir above ftat ion Flow 

°°a^fh ely/eg?lat!d by Delta Reservoir (usable capacity, 2,800,000,000 cu ft). Small 

quantity of water diverted from Delta Reservoir for fish hatchery use and later returned to river, part above and part below station,

Revisions. WSP 851: Drainage area.

Rating tables, water year 1955-56, except period of shifting-control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to May 31 May 31 to Sept. 30

1.2 

1.5 

2.0

80

126

235

3.0 

4.0 

6.0

570

1,040

2,340

1.6 

2.0 

3.0

145

233

538

4.0 

6.0 

6.5

962

2,200

2,600

Disc large, in cubic feet pe cond, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

22

23

24

25

26

27

28

29

30

31

Tbtal

Mean

Oct.

172

169

169

180

185

210

Z15

218

201

198

192

183

183

180

187

199

81

170

230

228

*482

616

608

375

254

Z54

251

248

246

257

284

7,625

246

Nov.

255

243

322

480

546

542

538

538

538

542

554

562

558

4Z1

282

293

293

279

273

273

270

270

370

458

443

*436

436

440

432

425

12,312

410

Dec.

432

443.

443

377

246

230

228

220

218

218

218

215

214

205

205

205

Z03

203

203

203

203

203

205

201

20T

203

212

218

218

215

205

7,413

239

Jan.

205

203

203

182

149

149

149

149

151

149

149

147

149

149

145

143

T53

161

159

159

159

157

157

179

163

163

161

161

161

161

151

4,976

161

Feb.

136

156

136

136

136

136

136

*143

151

153

153

153

155

153

149

149

149

149

149

149

149

149

145

137

139

143

147

155

165

4.Z34

146

Mar.

161

159

165

169

167

167

260

418

469

503

495

495

495

522

5Z2

*550

574

570

570

612

629

625

616

612

612

61Z

638

681

677

668

664

15,077

486

Apr.

659

655

659

735

818

809

776

744

735

749

681

651

638

634

638

939

1,120

1,110

1,110

1,100

1,100

1,100

1,030

979

837

749

583

"542 495

518

23,893

796

May

369

251

240

238

255

235

*270

257

251

426

583

550

538

507

554

608

629

495

472

518

422

548

358

352

273

235

Z65

364

514

1,150

*e2,280

14,527

469

June

*1,470

*887

685

568

447

568

304

253

219

195

178

155

145

252

281

Z71

271

268

268

268

268

255

253

253

255

255

253

250

250 

248

10,285

545

July

248

248

248

248

256

*268

266

266

271

Z71

268

269

261

263

256

Z53

248

246

243

246

246

246

246

2§8

265

265

261

261

261 

261

261

7,970

257

Aug.

256

248

246

245

243

Z43

243

245

240

258

558

358

284

256

256

256

256

256

255

255

*245

256

256

236

235

235

233

255

255

256

311

7,874

254

Sept.

281

261

248

246

256

512

547

358

355

352

329

*511

535

538

558

341

571

562

559

412

424

457

460

457

467

474

554

568

568 

564

11,425

581

Mean 

Cfsm 

In.

442 

2.95 

5.40

396 

2.64 

2.94

Calendar year 1955: 

Water year 1955-56:

248 

1.65 

1.90

127 

0.847 

0.98

134 

0.893 

0.97

330 

Z.20 

2.54

1,430 

9.53 

10.63

595 

3.97 

4.57

Observed

Max 1,810 Min 81 Mean 591 

Max 2,280 Mln 81 Mean 549

177 

1.18 

1.32

154 

1.03 

1.18

163 

1.09 

1.25

373 

2.49 

2.77

Adjusted

Mean 345 Cfsm Z.3O In. 51.23 

Mean 380 Cfsm 2.53 In. 34.45

* Discharge measurement made on this day.

t Adjusted for change in contents in Delta Reservoir (furnished by New York State Department of 

Public Works) and diversion through Black River Canal (flowing south).

e Shifting-control method used.

Note.--Elevation of water surface of Delta Reservoir, 528.SO ft at 12 p.m., Sept. 30, 1955, and 

545.55 ft at 12 p.m., Sept. 3O, 1956; 544.50 ft at 12 p.m., Dec. 51, 1954, and 557.75 ft at 12 p.m., 

Dec. 31, 1955.

505690 O - 59 - 7
86 HUDSON RIVER BASIN

West Canada Creek at Hinckley, N. Y.

Location.--Lat 43°18'20", long 75°07'10", on right bank at Hinckley, Oneida County,

1 mile downstream from Hinckley Dam, If miles east of Prospect, and 6-| miles upstream 

from Steuben Creek.

Drainage area. 375 sq mi.

Records available. June 1919 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,134.00 ft above mean sea level (Utica 

Gas & Electric Co. datum).

Average discharge. 37 years, 996 cfs (unadjusted).

Extremes. Maximum discharge during year, 9,110 cfs May 31 (gage height, 8.53 ft); minimum, 200 cfs Mar. 28 (gage height, 3.35 ft); minimum daily, 280 cfs Mar. 27, 28.

1919-56: Maximum discharge, 17,100 cfs Oct. 2, 1945, computed on basis of peak 

flow over dam; maximum gage height, 12.94 ft Oct. 2, 1945, from high-water mark in 

gage well (backwater from debris); minimum discharge, less than 1 cfs Aug. 31, 1924 

(gage height, 2.50 ft); minimum daily, 75 cfs Aug. 31, 1919.

Remarks. Records excellent. Since 1916, flow completely regulated by Hinckley Reservoir 

except for periods of spilling (usable capacity, 3,320,000,000 cu ft). Comparatively 

small diversion from Hinckley Reservoir for Utica water supply.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

Oct. 1 to May 31 May 31 to Sept. 30

3.5 

3.9 

4.5

255

462

955

5.O 

6.0 

8.0

1,520

3,060

7,540

6.0 

8.O

3.O6O 

7,680

Note. Same as 

preceding table 

below 6.O ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

406

406

4O6

406

406

419

425

431

443

476

496

496

496

496

496

510

545

568

590

744

1,470

1,660

1,820

1,8OO

1,170

833

*833

833

833 

833

22,797

736

Nov.

898

917

936

936

936

946

955

955

955

955

946

936

936

946

946

946

955

965

965

965

965

965

965

965

965

965

965

965

955 

955

28,525

951

Dec.

955

946

946

955

955

955

955

955

955

955

955

955

946

936

926

917

917

908

908

898

888

888

879

879

879

879

870

870

860 

851

833

28,374

915

Jan.

824

824

*797

779

770

762

753

744

728

710

702

685

677

669

661

661

653

645

637

629

629

629

621

621

613

605

598

590

582

582

575

20,955

676

Feb.

575

568

560

560

552

545

538

530

523

516

51O

503

496

496

489

456

4O6

4OO

394

394

394

394

406

400

394

394

389

406

412

13,600

469

Mar.

384

367

367

367

367

367

367

372

380

384

394

400

412

419

793

946

917

879

833

788

728

669

458

370

380

345

280

280

326

326

326

14,991

484

Apr.

326

297

284

302

435

637

1,120

1,620

1,750

1,750

1,8OO

1,830

1,890

1,940

1,970

2,O30

2,140

2,200

2,200

2,200

2,200

2,190

1,940

1,680

1,49O

1,340

1,260

1,260

1,320

2,050

45,451

1,515

May

3,49O

4,73O

4,1OO

4,310

3,820

3,200

2,760

2,480

2,120

2,340

3,040

2,570

2,330

2,180

2,2OO

2,270

2,640

2,200

1,780

1,580

1,380

1,180

1,120

1,180

*1,060

9O8

917

1,180

1,200 

1 890

*7!l40

75,295

2,430

June

*7,51O

4,590

3,040

2,350

*1,8OO

1,400

1,150

946

788

702

788

833

728

629

605

645

629

605

605

6O5

605

598

598

598

598

598

598

590

562

36,895

1,230

July

575

552

523

510

*510

510

510

51O

516

510

503

510

510

510

516

516

523

530

530

560

568

568

560

552

552

545

538

56O

575 

575

568

16,595

535

Aug.

538

523

523

516

516

516

516

510

510

523

605

568

406

394

394

389

476

545

5O3

425

*419

419

425

419

419

419

419

419

412 

419

437

14,522

468

Sept.

437

523

744

833

779

788

797

797

797

*797

797

797

797

797

797

797

797

797

815

917

1,020

1,020

1,O40

1,360

1,640

,680

,660

,650

,640 

, 620

29,730

991

Adjusted for change in contents in Hinckley Reservoir

Mean 

Cf sm 

In.

1,204 

3.21 

3.70

1,126 

3.0C 

3.35

Calendar year 1955: 

water- year 1955-56:

489 

1.30 

1.50

380 

1.01 

1.17

284 

0.757 

0.82

413 

1.10 

1.27

2,722 

7.26 

8.10

2,624 

7.00 

8.O7

Observed

Max 6,680 Min 394 Mean 946 

Max 7,510 Min 280 Mean 950

931 

2.48 

2.77

398 

1.06 

1.22

247 

0.659 

0.76

1,266 

3.38 

3.77

Adjusted

Mean 925 Cfsm 2.47 In. 33.49 

Mean 1,005 Cfsm 2.68 In. 36.50

* Discharge measurement made on this day.

Note. Elevation of water surface in Hinckley Reservoir: 1,197.9 ft at 12 p.m. Sept. 3O, 1955; 

1,219.6 ft at 12 p.m. Sept. 30, 1956; 1,214.2 ft at 12 p.m. Dec. 31, 1954; 1,206.2 ft at 12 p.m. 

Dec. 31, 1955 (furnished by New York State Department of Public Works).
HUDSON RIVER BASIN 87

Ninemile feeder near Holland Patent, N. Y.

Location.--Lat 43°13'25", long 75°12'15", on right bank at mouth of feeder, half a mile 

downstream from highway bridge, 3 miles east of Holland Patent, Oneida County, and 

6 miles downstream from intake.

Records available.--June 1919 to September 1956 (navigation seasons only).

Gage. Water-stage recorder and concrete control. Datum of gage is 737.59 ft above mean 

sea level, datum of 1929. Prior to June 1, 1939, at datum 2.00 ft higher.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Feeder diverts from West Canada Creek at Trenton Falls. Water reaches Barge Canal 

through Ninemile Creek. Operation of feeder discontinued Oct. 26, resumed June 15. 

Discharge shown during intervening period is made up of leakage through headgates and 

runoff from area tributary to feeder above station. This flow may continue during 

period of no record.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

114

113

112

114

105

114

123

124

115

110

110

105 

101

97

93

114

114

110

106

102

100

102

100

94

90

40

20

10

6

18

2,784

89.8

-

-

Nov.

10

7

7

15

12

9

7

6

7

8

7

6 

5

25

19

20

22 

17

13

11

10

9

11

26

14

»7

5.8

6.4

4.6

4.0

330.8

11.0

-

~

Dec.

4.0

3.7

4.3

28

13

6.S

4.9

4.6

4.3

4.3

4.3

4.0 

3.7

3.7

4.0

3.7

_

-

-

_

-

-

_

-

_

-

-

-

-

-

-

"

Jan.

_

-

-

"

Feb.

_

-

-

-

Mar.

_

-

-

-

Apr.

-

-

-

-

-

_

-

-

-

-

_

_

-

-

_

_

11

9.3

8.6

12

9.0

7.1

6.5

7.1

6.8

10

34

26

-

-

-

-

May

11

8.6

10

7.8

7.1

7.5

6.5

4.9

4.2

14

6.8

7.8 

15

6.5

4.9

12

7.1 

 5.8

7.3

5.8

4.5

4.5

9.7

6.1

4.9

3.9

875

7.1

5.2

35

51

301.0

9.71

-

"

June

28

12

15

9.0

7.1

6.5

5.5

4.9

3.9

3.9

3.6

3.6 

3.1

2.8

25

58

I

43

3.9

3.3

3.1

2.8

3.1

2.6

15

4.9

3.1

2.6

2 .6

399.9

13.3

-

~

July

2.6

2^3

3.7

54

57

38

7.8

6.5

22

61

59

M 

63

63

60

60

59 

58

58

58

60

6O

60

59

59

59

58

58

58

58

58

1,503.9

48.5

-

~

Aug.

58

57

57

57

57

58

58

58

57

57

57

57 

56

55

55 

56

58

57

*58

57

56

62

58

58

58

58

57

60

65

1,802

58.1

-

-

Sept.

71

67

64

63

62

64

65

62

62

62

62

62 

 62

62

62

67

71 

68

66

*87

67

66

69

69

70

69

68

67

68

67

1,991

66.4

-

"

Calendar year : Max Mln Mean Cfsm In.

Water year : Max Mln Mean Cfsm In.

* Discharge measurement made on this day. 

Note. No gage-height record Oct. 18 to Nov. 26; discharge estimated on basis of discharge measurement, weather records, and record for West Canada Creek at Kast Bridge.
88 HUDSON RIVER BASIN

West Canada Creek at Kast Bridge, N. Y.

Location. Lat 43°04'15", long 74°59'25", on left bank 600 ft downstream from highway 

bridge at Kast Bridge station on New York Central Railroad, Herkimer County, 1 mile 

downstream from North Creek, and 4 miles upstream from mouth and Herkimer.

Drainage area. 556 sq mi.

Records available. May 1905 to December 1909 (1905-6, gage heights and discharge measurements only), January 1912 to December 1913, and October 1920 to September 1956 in reports of Geological Survey. January 1910 to December 1911 and January 1914 to September 1920 in reports of State engineer and surveyor.

Sage. Water-stage recorder. Datum of gage is 438.99 ft above mean sea level, datum of 

1929. Prior to Sept. 18, 1920, tape gage at former highway bridge 500 ft upstream at 

different datum.

Average discharge. 36 years (1920-56), 1,338 cfs.

Extremes. Maximum discharge during year, 13,600 cfs May 31 (gage height, 6.85 ft); minimum, 132 cfs Aug. 16, 17 (gage height, 1.49 ft); minimum daily, 362 cfs Oct. 4.

1920-56: Maximum discharge, 20,500 cfs Oct. 2, 1945 (gage height, 8.08 ft); maximum 

gage height, 10.47 ft probably Feb. 17, 1943, from floodmark in gage well (ice jam); 

minimum discharge, 20 cfs Sept. 3, 1929 (gage height, 0.90 ft); minimum daily, 59 cfs 

Sept. 2, 1929.

Maximum discharge known, 23,300 cfs Mar. 26, 1913, from reports of State engineer 

and surveyor.

Remarks. Records excellent except those for periods of ice effect or fragmentary gageheight record, which are good. Since 1916. flow slightly regulated by Hinckley Reservoir (usable capacity, 3,320,000,000 cu ft). Diurnal fluctuation at low and medium 

flow caused by powerplants above station. Diversion at Trenton Falls by Ninemile 

feeder during canal navigation season.

Revisions. WSP 741: Drainage area.

Rating table, water year 1955-56, except periods of lee effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.8 

Z.O 

Z.5 

3.0

311

460

970

1,670

4.0 

5.0 

6.0

3,590

6,340

9,920

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cf am

In.

Oct.

389

386

420

362

398

753

1,300

1,090

680

451

530

523

563

498

570

1,680 

1,920

1,010

804

*816

1,230

2,020

2,000

2.080

2,000

1,300 

1,270

1,120

1,080

1,260 

1 830

32,333

1,043

-

-

Nov.

1,300

1,220

1,260

1,580

1,320

1,220

1,210

1.170

1,200

1,260

1,400

1,310

1,240

2.660

1,640

1,710 

2,000

1,450

1,380

1,330

1,300

1,280

1,510

2,180

1,530

1,390 

1,280

1,290

1,240

1,220

43,080

1,436

-

Dec.

1,170

*1,180

1,180

2.480

2,100

1,430

1,280

1,250

1,210

1,180

1,190

1,140

1,140

1,120

1,170

1,120 

1,150

1,120

1,080

980

880

920

 980

1,080

1,200

1,120 

960

980

980

1,020

1,000

36,790

1,187

-

-

Jan.

980

920

1,020

1,040

940

940

880

720

860

*920

1,020

1,200

1.240

980

960

920 

820

780

760

780

800

780

780

740

720

720 

740

740

760

800

720

26,980

870

-

-

Feb.

760

660

780

700

720

*780

700

751

726

732

700

739

701

696

668

640 

540

627

584

596

560

520

490

520

600

700 

764

746

668

19,368

668

-

-

Mar.

620

620

772

861

804

705

1,250

1.750

1,430

1,140

1,000

1,120

942

925

1,030

1,240 

1,250

1,100

1,140

1,040

*1,050

1,020

828

668

640

679 

606

510

579

610

605

28,534

920

-

"

Apr.

600

679

862

2,490

4,940

4,380

3,810

3,240

2,790

3,240

4,270

4,770

4,200

3,840

4,110

5.250 

4,210

3,440

3,180

2,970

2,930

3,180

2,820

2,430

2,170

2,040 

1,920

2,250

3,570

*3,630

94,211

3,140

-

"

May

3,970

5,420

5,200

4,970

4,670

3,960

3,480

3,010

2,690

3,050

3,660

3,380

3,290

2,810

2,800

3,070 

3,270

2,870

2,430

2,190

1,870

1,600

1,600

1,600

1,440

1.180 

1,380

1,570

1,580

f2,520

*f7.770

94,300

3,042

-

"

June

«9.25o

5,830

4,790

3,260

2,480

2,020

1,550

1,260

1,060

1,200

1,150

1,090

1,010

837

710

678 

723

736

664

726

703

740

715

765

756

684 

844

748

696

48,341

1,611

-

"

July

717

664

622

495

630

728

678

646

648

608

604

740

790

866

731

576 

621

543

560

558

608

618

682

592

623

*588 

600

544

566

648

570

19,664

634

-

"

Aug.

572

494

522

513

526

554

540

528

528

516

535

627

524

406

407

m556

578

464

436

448

450

616

466

451 

402

437

402

446

 1 ' 930

16,690

538

-

"

Sept.

1,600

1,160

1,020

1,000

885

855

1,190

915

888

846

858

856

833

*852

843

995 

1,420

1,340

948

2.360

1,350

1,240

,320

,560

,880

,900 

,840

,770

,790

' 750

38,064

1,269

-

"

Calendar year 1955: Max 6,730 Mln 316 Mean 1,285 Cfsm 2.31 In. 31.35

Water year 1955-56: Max 9,230 Mln 362 Mean 1,362 Cfsm 2.45 In. 33.34

Peak discharge (base. 7.000 cfa).~May 31 (10:45 p.m.) 13,600 efs (6.85 ft).

* Discharge measurement made on this day.

f Fragmentary gage-height record; discharge computed from reconstructed gage-height graph based on 

recorded range In stage and weather records.

Note. Stage-discharge relation affected by lee Dee. 19 to Feb. 7, Feb. 16, 17, 21-26. Mar. 1, 2, 

16-20, 25.
HUDSON RIVER BASIN 89

Mohawk River near Little Palls, N. Y.

ft downstream from Rooky 

miles southeast of city of

Location. Lat 43°00'50", long 74°46'40", on left bank 1,800 

Rift Dam, 2 miles upstream from East Canada Creek, and 4| 

Little Palls, Herkimer County.

Drainage area. 1,348 sq mi.

Records available. February to April 1901 and October 1927 to September 1956 in reports 

of Geological Survey. November 1923 to September 1927 (gage heights and discharge 

measurements only) in files of State Department of Public Works.

Gage. Water-stage recorder. Datum of gage is 310.0 ft above mean sea level (Barge Canal 

datum). February to April 1901, staff gage 1,800 ft upstream at different datum.

Average discharge. 29 years (1927-56), 2,799 cfs.

Extremes. Maximum discharge during year (river channel only), 21,100 cfs Apr. 5 (gage 

height, 16.17 ft); minimum (river channel only), 492 cfs Aug. 28 (gage height, 4.43 ft); 

minimum daily (including canal), 718 cfs Oct. 3.

1927-56: Maximum discharge (river channel only), 25,300 cfs Oct. 3, 1945 (gage 

height, 17.80 ft); minimum (river channel only), 214 cfs Aug. 18, 1949 (gage height, 

3.75 ft); minimum daily (including canal), probably not less than 463 efs Sept. 2, 

1934.

Revisions. Figures of maximum discharge for the water years 1928 and 1930 have 

been revised to 16,400 cfs Nov. 30, 1927 (gage height, 14.2 ft) and 19,200 cfs Jan. 10, 

1930 (gage height, 15.5 ft), superseding figures published in WSP 661 and 696, respectively.

Remarks. Records excellent except those for periods of ice effect, which are fair. Records of daily discharge include diversion at Rocky Rift Dam into Barge Canal for power 

and lockage at lock 16, near St. Johnsville. During canal navigation season, water is 

received from Black River basin through Black River Canal (flowing south) and Lansing 

Kill, and from Chenango River basin through Oriskany Creek feeder. Water is diverted 

into (or may occasionally be received from) Oswego River basin through summit level of 

Barge Canal between New London and Utica. Diurnal fluctuation caused by powerplants 

and locks and dams on Barge Canal. Appreciable regulation by Delta and Hinckley Reservoirs (combined usable capacity, 6,120,000,000 cu ft).

Revisions (water years). WSP 741: 1929(M), drainage area. Revised figures of discharge, 

in cubic feet per second, for high-water periods in the water years 1928-30, superseding those published in WSP 661, 681, and 696, are given herewith:

Date

1927

Nov. 27

28

29

30

Dec. 1

2

8

9

14

1928

Mar. 26

Discharge

11,400

ll.OOO

13,100

14,600

14,20O

12,000

11,300

11,600

10,900

12.3OO

Date

1928-Con.

Mar. 27

1929

Mar. 14

15

16

17

Apr. 6

7

8

9

Discharge

13,200

12 , 800

18,700

19,200

12,100

13,600

15,700

15,300

14,400

Date

1929-Con.

Apr. 10

21

May 3

4

5

6

7

16

1930

Jan. 8

Discharge

11,500

12,400

13,200

13,900

12,500

11,500

10,400

10, 70O

13,9OO

Date

1930-Con.

Jan. 9

10

11

14

15

16

Mar. 8

9

Discharge

16,800

18,100

13,300

10,300

12 ,400

10,300

11,800

11,400

Month

Calendar year 1928. ...........

March 1929. .....................

May

Calendar year 1929. ...........

Maximum

14,2OO

13,200

19,200

18,1OO

Minimum

1,410

2,720

1,010

960

2,020

690

-

Mean

5,010

6,O8O

3,350

2,780

6,300

3,210

4,790

2,370

Per square 

mile

3.72

4.51

3.29

2.49

Z.06

4.67

6.35

2.38

3.55

1.76

Runoff In 

Inches

4.14

5.20

3.79

33.84

28.07

5.39

7.09

31.57

32.35

5.76

4.10

23.82
90 HUDSON RIVER BASIN

Mohawk River near Little Palls, N. Y. Continued 

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

908 

830

718

763

719

1,030

3,340

3,080

2,380

1,540

1,180

1,140

1,120

998

1,090

6,170

8.440

6,030

2,880

2,180

2,230

3,200

3,210

3,290

3,810

3,440 

3,520

*2,630

2,180

2,350

5,470

81,866

2,641

Nov.

5,230 

3,130

2,630

3,480

3,180

2,810

2,600

2,440

2.420

2,530

2,890

2,960

2,670

6,OlO

6.260

4,670

5,560

3,800

3,190

2,920

2,700

2,610

2,550

5,420

4,530

3,290 

2,830

2,680

2,620

2,450

103,060

3,435

Dec.

2,360 

2,270

2,210

5,540

7.120

4,360

2,910

2,460

2,380

2,260

2,110

2,000

1,980

2,490

2,320

3,020

2,230

2,060

2,050

2,450

2,000

1.400

1,800

2,300

2,470

2,400 

2, 1OO

1,850

1,810

1,850

1,800

78,360

2,528

Jan.

1,750 

1,600

1,600

1,770

1,710

1,640

1,650

1,550

1,450

*1,810

1,880

2,290

2.850

2,360

1,730

1,680

1,700

1,600

1,400

1,500

1,500

1,470

1,470

1,400

1,350

1.500 

1,380

1,320

1,300

1,35O

1,400

50,760

1,637

Feb.

1,370 

1,300

1,300

1.160

1,200

1,330

1,300

1,360

1,440

1,490

1,480

1,560

1,640

1,580

1,580

1,600

1,450

1,480

1.59O

1,550

1,400

1,240

1,300

1,240

1,400

2,360 

2.770

2,530

2,100

.- - -

45,100

1,555

Mar.

1.98O 

1,910

3,090

4.28O

3,880

3,180

5,690

8.670

8,200

7,010

5,390

5,710

*5,310

4,790

4,100

3,800

3,300

3,400

3,300

3,120

2,940

2,900

2,910

2,690

2,510

2,540 

2,440

2,290

2,290

2,400

2,420

118,440

3,821

Apr.

2.590 

2,740

3,900

7,970

16,000

19.600

16,900

12,500

9,570

9,210

10,400

11,000

10,500

8,960

8,870

11,600

11,000

9,110

7,690

6,400

6,030

6,340

5,070

5,080

4,540

4,390 

4,040

4,360

8,260

10,500

254,920

8,497

May

8,58O 

7,810

7,490

7,050

6,680

5,690

5,210

4,580

3,850

4,390

5,910

5,560

5,500

5,030

4,540

4,530

5,230

4,690

3,830

3,580

3,030

2,690

2,660

2,950

2,620

2.140 

2,290

*2,870

2,750

4,900

12.5OO

151,130

4,875

June

«15.400 

11,700

9,590

6,470

4,650

3,520

2,950

2,430

2,140

2,010

2,580

2,000

1,820

1,600

1,390

1,410

1,530

1,460

1,370

1,350

1,310

1,350

1,340

1,330

1,320

1.250 

1,420

1,580

1,300

1,250

90,820

3,O27

July

1,240 

1,150

1,110

1,060

1.040

1,480

1,620

1,370

1,260

1,330

1,310

1,300

1,620

1.850

1,680

1,360

1,230

1,190

1,060

1,040

1,210

1,410

1,540

1,430

1,290

1,340 

*1,210

1,170

1,120

1,070

1,080

40,170

1,296

Aug.

1,070 

1,020

1,020

944

949

931

946

973

962

925

955

1,060

1,030

977

850

791

796

884

1,260

1,180

933

*846

836

973

1,070

937 

796

739

777

813

2 ,800

31,043

1,001

Sept.

3,990 

2,740

2,090

1,750

1,540

1,430

1,920

1,840

1,520

1,430

1.400

1,400

1,400

1,460

1,410

1,590

2,310

*3 , 160

2,530

4.470

3,940

2,820

2,640

3,190

3,350

3,120 

2,910

2,800

2,820

2,770

71,740

2,391

Calendar year 1955: Max 16,100 Min 626 Mean 2,833 Cfsm 2.10 In. 28.52

Water year 1955-56: Max 19,600 Min 718 Mean 3,053 Cfsm 2.26 In. 30.83

Peak discharge, river only (base, 16.OOO cfs). Apr. 5 (11:45 p.m. 21,100 cfs (16.17 ft)j June 1

(3:45 a.m.) 16,900 cfs (14.22 ft).

* Discharge measurement made on this day.

Note. --Stage-discharge relation affected by ice Dec. 19-24, 26-28, Dec. 31 to Jan. 3, Jan. 7-9, 

17-21, 24-26, 30, 31, Feb. 3, 4, 16, 17, 21-25, Mar. 16-19.
HUDSON RIVER BASIN 91

East Canada Creek at East Creek, N. Y.

Location. Lat 43° 01 '00", long 74° 44 '30", on right bank at village of East Creek, Herkimer 

County, a quarter of a mile downstream from Beardslee powerplant of Niagara Mohawk 

Power Corp., It miles upstream from mouth, and 3f miles northwest of St. Johnsville.

Drainage area. 291 sq mi.

Records available. December 1945 to September 1956.

~Gage . Water-stage recorder. Datum of gage is 335.70 ft above mean sea level, datum of 

Average discharge. 10 years (1946-56), 716 cfs.

Extremes . Maximum discharge during year, 11,200 cfs Apr. 30 (gage height, 7.00 ft); minimum, 8.6 cfs June 25 (gage height, 0.88 ft); minimum daily, 19 cfs June 30, Aug. 5.

1945-56; Maximum discharge, 12,200 cfs Mar. 30, 1951 (gage height, 7.03 ft); minimum, 0.6 cfs Sept. 7, 1947; minimum gage height, 0.71 ft Sept. 7, 1947, Sept. 24, 1949; 

minimum daily discharge, 5.9 cfs Sept. 13, 1947.

Maximum stage known, 9.0 ft Oct. 2. 1945, from floodmarks (discharge, 24,000 cfs, by 

slope-area determination of peak flow).

Remarks . Records good. Extensive diurnal fluctuation and slight regulation caused by 

powerplants above station. City of Little Falls diverts about 5 cfs for municipal 

supply.

Rating tables, water year 1955-56 (gage height. In feet, and discharge, 

in cubic feet per second)

Oct. 1 to May 31 June 1 to Sept. 30

1.1 

1.3 

1.6 

2.O 

2.5

26

55

128

285

535

3.0 

4.O 

5.0 

6.0 

7.0

1,010 

2,220 

4,2OO 

7,200 

11,200

1.0

1.1 

1.3 

1.6 

2.0

18

28

59

131

285

2.5 

3.0 

4.0 

5.0 

6.0

576 

1,OOO 

2,210 

4, ISO 

7,200

Dlschsrge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

145

139

282

118 

174

983

2,920

2,020

1,500

906

701

607

228

855

170

1,680

4.250

2,340

 1,480

821

620

725

466

291

512

798

799 

590

775

8 7O

'

30,795

993

3.41

3.94

Nov.

1,980

1,440

912

96O 

940

809

788

718

616

611

358

618

341

2.O2O

1,850

1,490

1,880

1,520

1,240

1,030

756

635

446

1,010

761

766

618 

586

326

516

28 , 341

945

3.25

3.62

Dec.

208

321

221

1,020 

*1.590

*968

695

448

448

364

299

415

346

373

386

316

324

257

311

279

244

218

358

239

300

334

386 

269

321

363

308

12,929

417

1.43

1.65

Jan.

220

114

339

293 

197

294

180

278

279

369

*687

966

1.020

877

602

730

348

462

290

380

224

346- 35

319

207

216

223 

281

139

321

225

11,461

370

1.27

1.46

Feb.

256

296

238

221

144

299

219

219

405

299

187

187

290

241

395

203

342

273

50

322

312

200

392

247

118

145

m434

8,076

278

0.955

1.03

Mar.

403

405

172

342 

508

463

957

965

72T

382

741

828

665

642

376

422

432

221

*407

408

497

485

215

351

161

506

534 

437

654

275

165

14, 746

476

1.64

1.88

Apr.

37

641

956

827 

1,210

2.47O

3,400

2,710

2.OOO

1,910

2,290

2,810

3,170

2,720

2,840

4,840

*5, 700

3,770

2,550

1,870

1,570

1,540

1,660

1,610

1,370

1,670

1,710 

2,580

8,310

*9,53O

80,271

2,676

9.20

10.26

May

 5,300

3,340

*2,720

2,410 

2,O6O

1,790

1,680

1,480

1,140

1,O3O

1,800

1,520

1,430

1,700-

1,390

1,270

1.79O

1,690

1,260

1,110

977

558

866

712

681

483

924 

1,220

644

3 350 

7!410

55,735

1,798

6.18

7.12

June

S.150

3,040

2,260

1.74O 

1,270

814

457

695

314

266

745

308

611

558

389

426

23

169

132

205

286

203

22

21

119

75

1O5 

206

209

U

20,837

695

2.39

2.66

July

73

151

124

20 

343

242

204

181

211

198

188

191

320

1.000

319

412

162

185

220

122

434

51

21

144

260

*298

158 

21

21

 207

100

6,581

212

0.729

0.84

Aug.

173

132

98

20 

19

142

126

65

62

39

58

24

123

113

98

120

30

41

47

76

120

 48

73

94

87

79

104 

114

100

110

243

2,778

89.6

0.308

0.36

Sept.

42S

391

362

162 

209

196

134

154

22

121

94

113

129

196

23

138

41O

*856

260

982

817

665

358

946

370

402

480 

556

50

38

10,112

337

1.16

1.29

Calendar year 1955 : Max 7,010 Mln 20 Mean 695 Cfsm 2.39 In. 32.40

Water year 1955-56 : Max 9,530 Mln 19 Mean 772 Cfsm 2.65 In. 36.11

Peak discharge (base. 7.000 cfs).-

11,200 cfs (7.00 ft)s May 31 (12:30

-Apr. 17 (12:45 a.m.) 7.48O cfs (6.08 ft); Apr. 30 (6:30 a.m.) 

i.m.) 8,820 cfs (6.44 ft).

* Discharge measurement made on this day.
92 HUDSON RIVER BASIN

Otsquago Creek at Port Plain, N. Y.

Location. Lat 42°55'50", long 74°37'35", on left bank 25 ft downstream from Kellogg Street 

Bridge in Fort Plain, Montgomery County, and half a mile upstream from mouth.

Drainage area. 59.2 sq mi.

Records available . October 1949 to September 1956.

Gage. Water-stage recorder. Datum of gage is 303.16 ft above mean sea level, datura of 1929.

Average discharge. 7 years, 91.4 cfs.

Extremes.--Maximum discharge during year, 4,240 cfs Apr. 5 (gage height, 6.43 ft); minimum, 

1.8 cfs Sept. 9.

1949-56: Maximum discharge, 9,030 cfs Aug. 31, 1950 (gage height, 8.24 ft), from 

rating curve extended above 3,000 cfs on basis of slope-area determination of peak flow; 

minimum, 1.4 cfs Nov. 22, 1953. -

Remarks. Records good except those for periods of ice effect, shifting control, or backwater from debris, which are fair. Occasional slight diurnal fluctuation at low flows.

Rating tables, water year 1955-56, except periods of ice effect, shifting control, 

or backwater from debris (gage height, in feet, and discharge, in cubic 

feet per second)

Oct. 1 to Mar 8 to Aug. 19

1.0 

1.5

86

180

2.0 

3.0 

4.0 

5.0

328

800

1,500

2,430

1.0

2.5

5.2

9.1

21

49

89

1.5 

2.0 

2.5 

3.0 

4.0 

5.0

193

340

539

800

1,500

2,430

Aug. 19 to Sept. 30

.0 2.0 0.8

.1 4.0 1.1

.2 7.3 1.5

.3 12 2.0

58

106

193

340

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

c!4

09.6

e8.2

c7.6

C7^2

c!60

141

128

61

36

26

22

18

17

220

1.680

722

*196

*119

80

62

48

38

49

140

301

118

68

55

278

316

5,145.6

166

2.80

3.23

Nov.

103

72

66

245

106

76

60

55

46

51

94

77

52

448

148

234

265

105

92

82

83

74

63

170

78

60

50

51

M

42

3,180

106

1.79

2.00

Dec.

31

29

30

580

2l4

*86

48

42

37

35

32

29

28

26

25

24

26

27

25

22

21

20

18

19

25

30

23

16

15

16

ii

1,613

52.0

0.878

1.01

Jan.

14

13

14

16

17

16

14

O2

13

*15

120

270

300

83

82

66

46

34

30

29

26

25

24

23

21

19

19

19

18

19

19

1,436

46.3

0.782

0.90

Feb.

*20

21

20

18

19

20

20

21

22

23

23

24

*26

23

22

21

20

21

23

22

20

19

18

18

33

90

76

62

54

819

28.2

0.476

0.51

Mar.

50

ifi

52

400

250

160

*820

870

*47^

274

228

380

253

209

130

78

82

86

76

72

*68

66

70

68

64

65

60

59

60

60

61

5,695

184

3.11

3.58

Apr.

66

118

226

588

2.240

1,560

940

477

271

660

1,140

1,130

691

739

714

1,190

617

383

276

176

153

230

200

154

121

140

123

200

652

511

16,686

556

9.39

10.48

May

177

123

*175

119

107

96

88

64

53

83

62

72

76

59

54

57

56

44

41

36

31

32

42

36

26

21

56

*62

37

137

222

2,347

75.7

1.28

1.47

June

80

61

257

93

60

47

37

29

27

32

41

25

23

18

15

13

11

12

9.6

9.1

10

11

10

1111

8.4

10

9.1

8.6

7^4

996.2

33.2

0.561

0.63

July

6.4

7.1

6.3

5.6

9.8

26

18

10

SS.

23

13

11

12

19

12

9.4

8.7

7.2

6.1

7.3

15

21

16

17

16

*17

9.4

8.1

6.6

6.4 *7.0

453.4

14.6

0.247

0.28

Aug.

6.2

5.6

5.6

5.7

5.2

5.6

5.3

5.2

4.9

5.1

4.8

4.3

5.5

5.6

4.6

*4.5

4.4

5.0

e!8

7.4

4.9

4.4

4.1

7.2

5.3

4.1

3.8

3.Z

4.3

4 3

5.4

170.0

5.48

0.093

0.11

Sept.

14

6.5

5.3

4.5

4.1

4.0

4.0

3.5

3*A

3.6

3.7

3.7

4.1

*8.3

13

19

36

42

17

43

19

12

28

121

33

18

13

11

9.3

8.0

495.0

16.5

0.279

0.31

Calendar year 1955: Max 2,590 Min 2.6 Mean 86.1 Cfsm 1.45 In. 19.73

Water year 1955-56: Max 2,240 Min 3.4 Mean 107 Cfsm 1.81 In. 24.51

Peak discharge (base. 2.000 cfsl.--Oct. 16 (1:15 a.m.) 3,660 cfs (6.02 ft)j Apr. 5 (5:30 p.m.) 

4,240 cfs (6.43 ft)i Apr. 11 (5:45 p.m.) 2,640 cfs (5.19 ft).

* Discharge measurement made this day.

c Backwater from debris.

e Shifting-control method used.

Note. Stage-discharge relation affected by ice Nov. 29 to Dee. 4, Dec. 6 to Jan. 13, Jan 16 to 

Mar. 7, Mar. 15-25.
HUDSON RIVER BASIN 

Schoharie Creek at Prattsville, N. y.

93

Location. Lat 42°19'15", long 74°26'10", on left bank 100 ft upstream from highway bridge 

in Prattsville, Greene County, a quarter of a mile upstream from Schoharie Reservoir, 

and l| miles downstream from Batavia Kill.

Drainage area. 236 sq ml.

Records available. November 1902 to December 1913 and October 1931 to September 1956 in 

reports of Geological Survey. November 1902 to September 1925 in reports of State 

engineer and surveyor. January 1903 to September 1956 (monthly discharge only) in 

reports of Board of Water Supply, City of New York.

Gage. Water-stage recorder. Datum of gage is 1,131.57 ft above mean sea level, datum of 

1929. Prior to Oct. 1, 1915, chain gage and Oct. 1, 1915, to July 17, 1936, waterstage recorder, at old highway bridge 80 ft upstream, and July 18, 1936, to July 15, 

1954, water-stage recorder at site a quarter of a mile downstream, all at datum 1.56 ft 

lower than present datum.

Average discharge. 49 years (1907-56), 464 cfs.

Extremes. Maximum discharge during year, 55,200 cfs Oct. 16 (gage height, 19.14 ft), from 

rating curve extended above 7,300 cfs on basis of contracted-opening determination of 

peak flow; minimum, 14 cfs Aug. 28 (gage height, 2.745 ft).

1902-56: Maximum discharge, that of Oct. 16, 1955; minimum daily, 5 cfs Aug. 3, 

1913.

Revisions. The maximum discharge for the water year 1937 has been revised to 22,400 

cfs Feb. 22, 1937 (gage height, 11.3 ft), superseding figure published in WSP 821.

Remarks. Records good except those for\periods of ice effect or no gage-height record, 

which are fair.

Revisions. WSP 351: Drainage area. Revised figures of discharge, in cubic feet per 

second, for high-water periods in the water years 1937-38, superseding those published 

in WSP 821 and 851, are given herewith:

1937

Feb. 22......... 8,680

May 14......... 2,330

15......... 9,120

16......... 2,840

17......... 1,780

Oct. 23......... 9,800

1937-Con. 

Oct. 24......... 3,650

1938 

Jan. 25......... 6,650

26......... 2,380

Month

May........................

Cfs-days

225, 524

185,756

Maximum

9,800

10,500

Minimum

53

31

Mean

618

509

Per square 

mile

2.62

2.16

Runoff In 

Inches

5.22

35.53

32.52

29. Z6
HUDSON RIVER BASIN 

Schoharie Creek at Prattsvllle, N. Y. Continued

Rating tables, water year 1955-56, except periods of Ice effect 

height, In feet, and discharge, In cubic feet per second)

Oct. 17 to Feb. 25 Feb. 26 to Sept. 30

3.6 

3.8 

4.0 

4.5 

5.0

73

134

215

508

928

6.0

8.0

10.0

12.0

15.0

2,080

5,360

10,400

17,200

30,700

3.4 105

3.6 170

4.0 359

4.5 674

5.0 1,080

6.0 2,180

7.0 3,610

9.0 7,600

2.7 

2.9 

3.1 

3.4 

3.8

133

279

4.4 

5.0 

6.0 

8.0

624

1,100

2,210

5,380

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

121 

114

101

90

84

202

433

417

375

279

225

198

172

506

19,800

*26.200

6,620

*3,100

2,010

1,380

1,040

809

660

619

696

559

470

405

359

3,760

5,580

77,384

2,496

10.6

12.19

Nov.

2.060 

1,340

1,050

1,800

1,410

1,100

*1,010

1,040

848

740

832

832

762

1,130

1,040

1,170

1,260

914

786

689

612

539

495

533

*434

388

343

332

280

*270

26,039

868

3.68

4.10

Dec.

260 

250

255

470

452

340

235

230

220

205

210

200

195

195

185

180

210

195

165

120

120

155

180

245

405

270

180

170

170

180

175

7,022

227

0.962

1.11

Jan.

170 

150

170

160

150

145

145

125

180

960

1,700

1.900

1,800

800

450

*360

270

210

200

190

190

200

180

165

150

140

145

135

145

145

140

11,970

386

1.64

1.89

Feb.

145 

150

120

106

Tiff

110

114

114

106

130

125

160

190

140

150

160

130

145

140

*135

130

120

150

150

1,000

1.500

1,080

700

450

7,960

274

1.16

1.25

Mar.

380 

640

1,400

1,000

470

430

2.700

*2,480

1,630

1,080

1,210

1,270

876

 752

620

520

500

450

410

390

350

360

360

360

310

320

270

260

250

258

245

22,551

727

3.08

3.55

Apr.

235 

a300

a500

a760

a3,400

*a3, 800

3,380

2,010

1,530

1,330

1,390

1,640

1,600

1,420

1,870

5.220

4,230

2,410

1,790

*1,320

1,090

1,540

1,480

1,190

1,040

1,070

984

2,510

4,540

4,120

59,699

1,990

8.43

9.41

May

2.250

1,620

1,590

1,440

1,200

1,000

860

709

591

584

578

539

604

*545

501

441

413

379

363

313

270

240

236

232

202

184

191

198

178

161

161

18,773

606

2.57

2.96

June

209 

206

570

508

374

*313

262

228

198

191

198

167

145

127

113

174

235

130

100

85

78

76

74

76

67

59

56

56

50

11

5,172

172

0.729

0.82

July

41 

37

33

32

83

228

142

100

*80

70

59

56

52

211

161

111

*92

78

67

61

67

111

105

100

80

70

61

52

47

41

37

2,565

82.7

0.350

0.40

Aug.

34 

33

29

27

26

25

*24

24

22

21

19

18

19

23

23

22

19

18

25

23

23

24

22

22

20

18

15

*16

19

21

24

698

22.5

0.095

0.11

Sept.

28 

30

61

44

35

30

29

27

25

23

21

20

24

35

28

54

*105

100

76

80

95

76

88

388

217

148

122

108

117

116

2,350

78.3

0.332

0.37

Calendar year 1955: Max 26,200 Mln 6.0 Mean 634 Cfsm 2.69 In. 36.47

Water year 1955-56: Max 26,200 Mln 15 Mean 662 Cfsm 2.81 In. 38.16

Peak discharge (base, 4.400 cfs).-

11,800 cfs (10.46 ft); Apr. 5 (about

-Oct. 16 (1 a.m.) 55,200 cfs (19.14 ft); Oct. 31 (1:45 a.m.) 

, . . 6 p.m.) .. 7,100 , cfs (8.79 ft); Apr. 16 (9:30 p.m.) 7,760 cfs

(9.06 ft); Apr. 29 (2:30 a.m.) 5,480 cfs (8.05 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage, weather records, 

and records for Esopus Creek at Coldbrook and Catsklll Creek at Oak Hill.

Note.--Stage-discharge relation affected by Ice Nov. 29 to Dec. 2, Dec. 6-24, Dec. 26 to Mar. 7, 

Mar. 15-29, Apr. 1 (no gage-height record Feb. 14-20).
HUDSON RIVER BASIN 95

Schoharle Creek at Burtonsvllle, N. Y.

Location. Lat 42°47'55", long 74°15'45", on right bank 0.4 mile south of Burtonsvllle, 

Montgomery County, 2.7 miles north of Esperanoe, and 13.5 miles upstream from mouth.

Drainage area. 883 sq ml.

Records available. October 1939 to September 1956.

Gage . Water-stage recorder. Datum of gage Is 507.98 ft above mean sea level, unadjusted.

Average discharge. 17 years, 969 cfs.

Extremes. Maximum discharge during year, 76,500 cfs Oct. 16 (gage height, 12,39 ft); minimum, 8.9 cfs Aug. 28 (gage height, 0.49 ft).

1939-56: Maximum discharge, that of Oct. 16, 1955; minimum, 4.0 cfs Aug. 10, 11, 

1955; minimum gage height, 0.36 ft Oct. 1, 2, 1941.

Floods In March 1936 and September 1938 reached stages of 10.5 and 10.2 ft, respectively, from Information furnished by local resident. Flood In October 1903 Is known 

to have reached a higher stage.

Remarks. Records good except those for periods of Ice effect, which are fair. Entire flow 

aTTTfllboa (drainage from 314 sq ml), except for periods of spilling, Oct. 1 to Dec. 21, 

Jan. 13-17, Mar. 7 to June 12, diverted from Schoharle Reservoir Into Ashokan Reservoir 

for water supply of city of New York.

Rating tables, water year 1955-56, except periods of ice effect (gage height, 

in feet, and discharge, in cubic feet per second)

Oct. 1-15 Oct. 16-31 Nov. 1 to Sept. 3O

1.1

1.3

1.5

1.7

2.2

3.0

4.0

124

249

462

771

1,810

4,040

8,100

1.9

2.4

3.0

4.0

6.0

11.0

1,150

2,300

4,070

8,37O

20,700

62,600

0.51

.7

.9

1.1

1.3

1.5

10

30

68

138

259

464

1.8

2.3

3.0

4.O

5.0

7.0

957

2,140

4,240

8,370

14,000

28,500

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

3

3

4

5

6

7

8. 

9

10

11

13

13

14

15

16

17

18

19

2O

31

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

227 

217

209

188

172

311

1,380

1,150 

1,010

789

592

491

426

391

6,320

 54.100

 31,200

 12,600

 7,480

4,810

3,410

2,67O

2,130

1,760

2,050

2,050

1,830

1,450

1,150

3 350 14 ',700

160,613

5,181

+25.8

Nov.

6.790 

4,090

3,07O

3,730

4,500

3,530

2,890

2,660 

2,44O

2,090

2,110

2,300

2,040

3,840

4,080

3,550

4,080

3,160

2,580

2,300

2,060

1,860

1,630

1,880

1,630

1,390

1,210

1,120

998

789

80,377

2,679

-20.1

Dec.

754 

704

688

2,250

3.120

*1,980

1,340

1,140 

1,040

957

882

826

789

720

671

600

638

654

620

500

50O

560

62O

SOO

1,130

1,650

1,100

' 760

740

740

30,253

976

+82.8

Jan.

680 

600

640

6OO

540

520

500

490 

540

920

 2,900

3,7OO

3.890

1,460

1,300

1,140

998

660

540

500

490

500

450

420

390

350

360

340

330 

350

500

27,378

883

+448

Feb.

300 

32O

270

230

240

230

240

240 

245

245

230

245

 300

26O

280

290

250

260

250

245

225

205

250

245

360

5.400

2,430

1,490

88O

14,655

505

+373

Mar.

700 

789

2,450

3,060

1,760

1,320

9,020

11.600 

8,900

5,230

4,520

6,240

4,440

3,650

2,810

2,090

1,400

1,800

1.7OO

1,510

 1,370

1,340

1,410

1,340

1,120

1,120

1,100

978

938 

978

938

87,621

2,826

+196

Apr.

882 

1,080

2,110

6,820

23.900

19,100

14,90O

8,910 

5,950

6,050

6,900

7,680

7,780

6,070

7,110

11,700

17,400

9,310

6,500

4,760

3,880

4,310

4,680

4,550

3,650

3,440

3,310

3,850

8,640

11,400

226,622

7,554

+22.5

May

7.050 

4,570

3,980

3,530

3,280

2,720

2,470

2,060 

1,760

1,580

1,580

1,490

1,490

1,460

1,820

1,490

1,390

1,190

1,120

1,040

901

807

737

770

671

'BTT 591

 688

638 

622

622

54,708

1,765

-23.3

June

704 

826

1,030

1.490

1,100

72O

563

441 

360

321

348

312

245

204

174

159

138

124

113

103

94

90

85

83

82

80

75

70

67

10,264

342

+194

July

59 

55

51

45

50

65

100

-82 101 

70

74

68

63

71

71

76

70

6O

51

47

47

50

57

59

57

 53

50

42

36 

33

29

1,842

59.4

+167

Aug.

ft

22

20

19

18

17

16

15

15

13

12

12

12

11

11

11

10

IT

12

12

12

 11

13

12

10

10

10

12 

13

20

444

14.3

+57.2

Sept.

24 

26

28

27

25

22

20

17

14

13

12

11

12

13

14

20

25

 43

62

67

58

60

66

400

460

224

159

126

103

9O

2,241

74.7

+141

Calendar year 1955: Max 54,100 Mln 4.3 Mean 1,443 t +294

Water year 1955-56-. Max 54,100 MLn 1O Mean 1,9O4 t +138

* Discharge measurement made on this day.

t Diversion from and change In contents in Schoharle Reservoir, equivalent In cubic feet per second; furnished by Department of Water Supply, Qas, and Electricity, City of New York.

Note. Stage-discharge relation affected by ice Dec. 16, 19-24, Dec. 26 to Jan. 12, Jan. 18 to 

PebTTe, Feb. 29, Mar. 1, 17 (no gage-height record Dec. 21-24).
96 HUDSON RIVER BASIN

Mohawk River at Cohoes, N. Y.

Location. Lat 42°47'05", long 73°42'25", on right bank at School Street plant of Niagara 

Mohawk Power Corp. in Cohoes, Albany County, and if miles upstream from mouth.

Drainage area. 3,456 sq mi.

Records available . July 1925 to September 1956.

Gage. Water-stage recorder. Datum of gage is 49.13 ft above mean sea level, datum of 

T929. Prior to Oct. 19, 1925, powerplant gage.

Average discharge . 31 years, 5,747 cfs.

Extremes. Maximum discharge during year, 100,000 cfs Oct. 17 (gage height, 21.15 ft); 

minimum, 38 cfs Aug. 5 (gage height, 3.31 ft); minimum daily, 88 cfs Aug. 5.

1925-56: Maximum discharge, 130,000 cfs Mar. 19, 1936 (gage height, 22.57 ft), from 

rating curve extended above 34,500 cfs by logarithmic plotting; minimum, 6 cfs 

Sept. 28, 1941 (gage height, 3.40 ft); minimum daily, 23 cfs Aug. 24, 1941.

Remarks. Records excellent. Records include small diversion Just above gage for Cohoes 

water supply but do not include diversion through lock 6 at Crescent Dam (published 

herewith) for operation of Barge Canal. During canal navigation season, water is received from Black River basin through Black River Canal (flowing south) and Lanslng 

Kill, and from Chenango River basin through Oriskany Creek feeder. Water is diverted 

into (or may occasionally be received from) Oswego River basin through summit level of 

Barge Canal between New London and Utica. Most of flow of Schoharie Creek above Gilboa 

Dam, a tributary of Mohawk River, is diverted out of basin through Shandaken tunnel for 

water supply of city of New York. Slight regulation by storage, principally In Delta, 

Hinckley, and Schoharie Reservoirs (combined capacity, 8,738,000,000 cu ft). Extensive 

diurnal fluctuation caused by School Street powerplant. Records of suspended sediment 

loads for the water year 1956 are given in WSP 1450.

Revisions. WSP 741: Drainage area.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1-31 Nov. 1 to Sept. 5O

8.0

8.5

9.0

10.0

11.0

952

1,240

1,740

3,180

5,100

12.0

13.0

15.0

17.0

21.0

7,950

11,800

22,800

41,500

97,400

4.1 

4.5 

5.0 

6.0 

7.0 

8.0 

8.5 

9.0

84

116

166

326

588

1,030

1,370

1,860

10.0 -

11.0

12.0

13.0

15.0

17.0

20.0

3,270

5,620

8,910

12,800

23,700

42,100

80,900

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21 

22

25

24

25

26

27

28 

29

30 

51

Total

Mean

Cfsm

In.

Oct.

1.010 

1,150

1,590

1,310

1,460

2,590 

9,030

8,610

5,890

4,360

3,570

3,250

3,150

2,620

6,350

*59,500 

*87,500

36,500

17 , 100

10,600

7,880 

5,160

5,460

5,650

5,720

7,300

8,250

6,190 

4,390

9,430

29,800

561,970

11,680

-

-

Nov.

21.600 

12,100

8,770

11,000

12,200

10,400 

7,750

8,380

6,460

6,540

6,780

7,540

7,000

9,910

17,500

12,500 

15,OOO

11,900

8,070

8,620

7,100 

6,280

6,520

6,930

10,500

7,130

6,050

5,100 

5,O6O

4.980

275,470

9,182

-

-

Dec.

4,550 

4,270

4,410

6,370

17.000

11,400 

6,870

5,290

4,640

5.OOO

4,570

6,670

7,580

6,510

*8,760

4,660 

4,870

4,580

5,880

5,240

2,550 

5,090

2,540

2,050

5,550

3,660

3,690

5,530 

3,570

3,480

2,740

158 , 930

5,127

-

-

Jan.

2,640 

2,790

2,920

2,610

2,490

2,820 

2,650

2,560

2,460

3,050

3,420

10,400

14,100

8,990

6,150

5,110 

4,580

4,050

3,610

5,480

5,170 

2,620

2,620

2,940

2,520

*2,470

2,470

1.880 

2,050

2,410

2,210

118,020

5,807

-

-

Feb.

2,490 

2,550

2,470

2,150

1,520

2,290 

2,700

5,500

2^780

2,500

2,620

2,700

2,890

2,790

2,920

5,OOO 

5,020

5,340

2,700

2,730

2,850 

2,870

*2,470

2,090

2,630

5,560

4,800

6.470 

5,550

r -

86,550

2,978

-

-

Mar.

4,580 

4.550

4,790

8,810

10,500

8,550 

12 , 600

*28,500

28.700

20,160

15,600

16,200

15,800

13,500

11,200

8,980 

7,240

6,580

7,270

6,740

6,460 

6,150

6,090

5,970

5,540

*5,020

5,450

5,150 

4,810

4,810

4,720

300,760

9,702

-

-

Apr.

*4.560 

4,740

7,410

13,300

46,300

68,500 

59,800

41,800

25,700

23,000

27,300

32 , 100

32,400

25,600

24,800

29,400 

47,400

34,300

23,100

17,200

10,200 

12,000

15,500

12,200

11,600

10,100

11,100

11,500 

21,600

41,900

744,010

24,800

-

-

May

29.500 

17,600

17,500

14,200

14,600

13,500 

12,600

11,300

9,490

8,500

11,300

9,860

9,030

9,600

*8,500

8,590 

8,980

9,020

7,570

5,490

5,810 

4,890

3,860

5,430

4,700

4,350

5.850

5,160 

5,370

9,650

20,800

309,600

9,987

-

-

June

27.800 

20, 100

16,000

12,200

9,930

6,O6O 

5,340

4,240

4,920

2,580

5,300

4,710

2,720

2,420

*3,180

2,530 

2,170

2,380

2,510

2,120

2,120 

1,380

564

1 090

1,620

1,990

2,240

2,110 

2,350

870

152,944

5,098

-

-

July

1,190 

1,820

1,440

1,060

1,830

1,640 

2,090

1,610

2,160

2,380

2,070

1,810

1,900

2,500

5.320

2,600 

2,540

1,760

1,640

1,830

1,740 

1,040

2,050

1,820

*2,170

1,990

1,910

2,080 

1,200

1,710

1,720

58,600

1,890

-

-

Aug.

1,600 

1,400

1,040

850

*88

2.010 

1,350

1,290

1,200

1,140

526

93

1,500

1,560

1,410

1,250 

1,140

500

171

1,450

1,500 

1,810

1,510

1,600

1,410

106

1,450

1,440 

1,290

1,150

1,300

35,494

1,145

-

-

Sept.

5,480 

5,970

5,090

2,410

2,580

1,780 

1,830

2,210

1,670

1,770

1,870

1,770

1,850

1,970

2,170

1.650 

2,710

4,020

4,120

5,410

6,450 

3,850

3,930

4,120

5,220

4,300

3,630

3,920 

3,540

. _'....

91,850

5,062

-

-

Calendar year 1955 : Max 87,5OO Mln 79 Mean 6.O90 Cfsm 1.76 In. 25.92

Water year 1955-56: Max 87,50O Mln 88 Mean 7,361 Cfsm 2.13 In. 28.99

Peak dlscharee (base. 41.OOO cfs).-

77,200 cfs (19.75 ft); Apr. 17 (12:45

-Oct. 17 (6:15 a.m.) loo,OOO cfs (21.15 ft); Apr. 6 (8 a.m.) 

p.m.) 55,900 cfs (18.19 ft); Apr. 3O (11:3O a.m.) 48.9OO cfs

(17.61 ft).

* Discharge measurement made on this day.
HUDSON RIVER BASIN

Mohawk River at Cohoes, N. Y. Continued

Diversion, In cubic feet per second, from Mohawk River at Crescent Dam, N. Y., through 

Barge Canal at lock 6, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cfsm 

In.

Oct.

143

125

149

113

143

113

151

128

116

163

138

120

144

156

138

84

79

76

86

97

91

79

84

108

174

150

193

T56

120 

145

94

3,856

124

-

Nov.

74

15?

175

121

145

156

127

151

114

114

126

133

144

232 "146

116

110

151

145

193

121

150

90

132

145

109

144

108

168 

126

4,118

137

-

Dec.

114

102

150

138

147

152

193

TSZ

126

102

90

78

78

84

72

148

3

1,981

63.9

-

Jan.

3

93

3.0

-

Feb.

3

87

3.0

-

Mar.

3

93

3.0

-

Apr.

» 3

37

73

73

73

73

179

264

97

242

167

91

163

211

151

187

123

77

2,320

77.3

-

May

82

12

98

175

TST

163

151

145

132

114

151

109

120

138

175

121

150

168

138

173

155

138

139

133

157

151

162

127

127 

133

129

4,303

139

-

June

88

75

75

146

225

175

109

198

163

143

126

139

174

143

168

161

174

131

132

186

161

161

179

204

138

156

126

125

149

114

4,442

148

-

July

162

156

174

162

156

180

161

162

156

150

192

144

174

162

162

144

149

101

161

155

119

132

137

156

150

137

137

167

143 

228

155

4,824

156

-

Aug.

155

191

167

161

156

307

155

179

125

167

179

131

173

162

125

125

143

203

174

132

150

155

161

149

144

113

167

209

137 

155

155

5,005

161

-

Sept.

181

150

186

151

144

143

138

156

150

120

168

144

143

143

131

138

156

127

139

132

121

145

115

163

169

127

144

145

156 

131

4,356

145

-

Calendar year 1955: Max 205 Min - Mean 98.9 Cfsm - In. -

Water year 1955-56: Max 307 Min - Mean 96.9 Cfsm - In. -
98 HUDSON RIVER BASIN

Hudson River at Green Island, N. Y.

Location. Lat 42°45'10", long 73°41'20", on right bank at Green Island, Albany County, 

just upstream from Troy lock and dam, half a mile downstream from 5th branch Mohawk 

River.

Drainage area. 8,090 sq mi, approximately (including that above site of auxiliary gage). 

Records available. February 1946 to September 1956.

Gage. Water-stage recorder. Datum of gage is 0.31 ft below mean sea level, datum of 

1929 (Corps of Engineers benchmark). Since July 1, 1946, auxiliary water-stage recorder on bypass channel at datum 10.59 ft higher.

Average discharge. 10 years, 14,400 cfs (including flow through bypass channel).

Extremes (main channel). Maximum discharge during year, 113,000 cfs Oct. 17; maximum gage 

height, 23.13 ft Oct. 17; minimum daily discharge, 2,830 cfs Aug. 13; minimum gage 

height, 14.49 ft July 5.

1946-56: Maximum discharge, 181,000 cfs Dec. 31, 1948 (gage height, 27.05 ft, 

from high-water mark in gage well); maximum daily, 141,000 cfs Dec. 31, 1948, Jan. 1, 

1949; minimum daily, 1,270 cfs Sept. 5, 1949; minimum gage height, 13.92 ft Sept. 2, 

1946.

Flood of Mar. 19, 1936, reached a stage of 29.48 ft at gage on opposite bank, from 

information by Corps of Engineers (discharge, 215,000 cfs). Flood of Mar. 28, 1913, 

prior to construction of Sacandaga Reservoir and Troy lock and dam, reached a stage 

about 0.2 ft higher upstream from former dam near same site. Downstream from dams, 

flood in 1913 was about 3.3 ft higher than flood in 1936, from information by Corps of 

Engineers.

Remarks. Records good except those for periods of shifting control, which are fair. 

Records of main channel include flow over spillway, through wheels, and through lock. 

Record of flow in bypass channel, which enters Hudson River lj miles downstream, is 

shown separately. Appreciable regulation by Sacandaga Reservoir (see p. 63), Indian 

Lake Reservoir (see p. 48-), and Delta, Hinckley, and Schoharie Reservoirs (combined 

capacity, 8,738,000,000 cu ft). Diurnal fluctuation caused by powerplants above 

station. Diversion above station for water supply for city of New York (see records 

for Mohawk River at Cohoes and Schoharie Creek at Burtonsville). During canal navigation season, water is received from Black River basin through Black River Canal (flowing south) and Lansing Kill, and from Chenango River basin through Oriskany Creek 

feeder. Water is diverted into (or may occasionally be received from) Oswego River 

basin through summit level of Barge Canal between New London and Utica. Water is diverted into St. Lawrence River basin through Glens Falls feeder, Bond Creek (see 

p. 70,71), and Champlain Canal and occasionally may be received from that basin 

through summit level of Champlain Canal at Dunham Basin.

Cooperation. Powerplant records furnished by Ford Motor Co. in connection with a Federal 

Power Commission project.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6 

7

a

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

5,470 

4,640

4.250

5,700

5,860

7,300 

15,600

16,800

14,200

10,600

10,000

9,190

8,380

7,660

11,400

63,000

101,000

59,300

34,900

25,700

20,100

16,100

14,700

12,700

14,300

17,300 

17,300

15,700

12,400

16,500

40,200

618,250

19,940

-

Nov.

42.300 

29,600

22,800

24,100

29,100

26,000 

21,800

21,900

18,800

18,000

18,100

18,800

17,500

21,600

32,700

25,200

28,300

24,300

19,900

19,600

17,700

16,200

16,100

16,100

19,900

15,800 

14,300

15,600

14,000

14,400

638,500

21,280

-

-

Dec.

13,300 

13,000

13,200

14,700

28.300

21,100 

16,400

13,600

12,600

13,000

11,500

13,000

15,100

13,500

15,900

11,500

11,300

10,300

9,510

8,960

7,990

8,340

7,200

6,190

7,490

6.090 

7,870

9,450

9,360

9 020

7^930

366,700

11,830

-

-

Jan.

6,700 

5,010

7,780

7,730

7,560

7,780 

7,410

6,160

4.360

10,800

17,300

22,600

27.500

19,300

14,100

11,400

12 , 400

11,300

9,840

9,630

9,480

7,390

6,740

8,580

8,270

7,720 

7,760

6,840

5,990

6,100

7,170

308,700

9,958

-

-

Feb.

7,730 

7,530

7,430

6,470

5.450

5,500 

7,670

9,030

8,070

7,380

7,190

6,560

6,360

8,500

8,460

8,720

8,780

8,600

6,700

6,500

7,780

7,890

7,340

6,440

8,080

15.500 

13,900

15,100

12,800

243,460

8,395

-

-

Mar.

11,200 

10 , 900

13 , 900

21,300

21,000

17,700 

26,100

45.000

43,900

32,700

26,200

27,300

27,200

24,400

20,700

17,700

14,900

13,300

13,400

14,300

14,100

13,700

13,400

13,100

12,500

10.500 

12,000

11,700

11,300

10,900

11,000

577,300

18,620

-

-

Apr.

10,600 

8.580

16,200

26,600

72 , 600

95,200 

85,200

63,200

43,900

41,800

46,200

51,000

52,400

45,500

44,100

49,400

77,400

64,400

50,300

39,600

28,500

28,600

29,400

27,600

24,800

22,400 

22,700

22,800

39,600

73,600

1,304,180

43,470

-

-

May

65.400 

48,000

43,700

36,900

35,500

32,000 

28,700

25 , 600

22,200

20,200

23,000

22,000

21,100

21,000

20, 600

19,700

20,800

21,300

1,8,600

15,600

13,800

12,500

12,000

13,800

12,500

12,200 

10.100

12,000

15,000

19,200

33,500

728,500

23,500

-

-

June

44.400 

38,900

33,800

30,700

26,200

20,600 

18,200

14,800

14, 800

10,200

10,600

13,200

11,200

10,300

10,700

8,570

7,610

5,240

7,100

6,240

5,840

5,530

3,920

3,640

3.220

5,730 

6,290

5,990

6,400

4,220

394,140

13,140

-

-

July

3,460 

3.290

5,620

4,100

3,300

6,090 

6,540

6,080

5,280

7,490

7,790

7,870

7,440

8,260

9.550

6,750

9,090

7,800

7,460

6,580

6,420

4,550

5,090

6,040

7,460

7,440 

6,710

6,380

4,810

4,520

5,440

194,680

6,280

-

-

Aug.

5,600 

5,820

5,390

4,240

3,140

3,470 

5,150

5,350

5,030

5,040

4,450

3,530

2.830

5,100

5,690

5,040

4,500

4,230

3,240

3,470

6.050

5,950

5,400

5,720

5,500

3,650 

3,410

4,810

5,610

5,240

5,790

147,440

4,756

-

-

Sept.

9,260 

9,110

7,020

 7,600

7,540

6,540 

6,360

6,380

5,570

4.000

6,110

5,920

6,090

6,140

6,670

5,680

6,080

10,500

10,500

8,950

12,200

9,350

8,790

8,970

15.100

10,500 

9,510

9,550

8,710

6,980

239,680

7,989

-

-

Calendar year 1955: Max 101,000 Mln 2,070 Mean 14,600 Cfsm - In. -

Water year 1955-56: Max 101,000 Mln 2,830 Mean 15,740 Cfsm - In. -

Note. Shifting-control method used for spillway record Oct. 1-16, July 2 to Sept. 30.
HUDSON RIVER BASIN 

Hudson River at Green Island, N. Y.--Continued

Discharge, In cubic feet per second, of Hudson River bypass channel at Green 

Island, N. Y., water year October 1955 to September 1956

99

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

20

19

20

20

19

25

31

35

28

24

22

20

20

18

20

60

116

45

38

32

29

25

24

24

23

25

25

22

20

40

54

943

30.4

Nov.

29

25

23

47

55

29

29

24

20

22

29

30

32

44

39

39

39

34

32

31

30

*29

29

28

30

29

29

29

28

28

941

31.4

Dec.

27

27

28

37

36

31

28

26

26

25

25

25

27

26

28

26

25

25

24

25

23

25

23

23

25

24

23

24

25

25

23

810

26.1

Jan.

21

20

23

23

23

23

23

21

24

53.

31

43

32

16

13

13

13

12

12

12

12

12

*11

10

10

9.7

 9.1

9.0

8.8

978

10

562.4

18.1

Feb.

9.9

9.7

9.4

10

9.0

11

11

11

11

11

11

17

17

16

29

20

13

11

10

10

11

10

9.7

9.2

64

21 14

12

11

418.9

14.4

Mar.

10

24

33

41

16

13

90

52

25

23

21

18

18

16

15

12

12

12

12

12

12

13

15

15

13

*12

13

14

21

34

34

671

21.6

Apr.

44

55

68

105

73

100

38

31

29

27

26

25

23

21

2£

23

30

24

21

21

35

34

36

36

34

33

*33

33

41

69

1,188

39.6

May

45

39

41

37

36

34

34

32

31

31

31

31

30

31

29.

29

30

34

34

33

34

34

34

34

32

31

33

34

33

45

37

1,053

34.0

June

28

29

32

22

19

16

16

14

14

13

13

13

12

10

12

11

10

*8.9

9.3

9.7

9.8

9.4

8.6

7.2

£76

8.6

9.9

8.2

8.6

8.2

399.0

13.3

July

7.5

7.2

7.2

7.0

7.4

7.2

7.0

7.0

7.7

7.0

7.0

6.4

6.9

7.2

7.5

7.5

7.9

7.2

7.2

7.2

7.5

6.4

7.2

7.0

7.4

7.2

7.2

7.0

6.7

6.7

6.7

221.2

7.14

Aug.

7.0

6.7

7.0

6.7

6.4

6.8

10~~ 6.3

16

2_1

20

20

20

20

20

20

18

17

15

15

15

15

14

*14

12

10

12

12

11

11

12

416.9

13.4

Sept.

13

14

13

15

16

15

14

14

12

12

12

13

14

13

12

12

12

13

13

14

14

13

14

18

13

12

11

12

11

9.7

393.7

13.1

Total flow of Hudson River main channel and bypass channelt

Mean 19,98o| 21,310 11,850 9,977 8,409 18,640 43,510 23,540

Bypass channel

Calendar year 1955 : 

Water year 1955-56 :

Max 116 

Max 116

Mln 9 . 8 

Min 6.3

Mean 24.1 

Mean 21.9

13,150 6,286| 4,769 8,002

River and bypass channel

Mean 

Mean

14,620 

15,760

Cfam 1.81 In. 

Cfsm 1.95 In.

24.55 

26.52

* Discharge measurement made on this day. 

t On basis of cfs-days.
100 HUDSON RIVER BASIN

Poesten Kill near Troy, N. Y.

Location. Lat 42°44'00", long 73°38'00", on left bank 600 ft downstream from bridge on 

Troy-Eagle Mills road, a quarter of a mile downstream from Sweet Milk Creek, l| miles 

west of Eagle Mills, 3 miles east of Troy, Rensselaer County, and 5 miles upstream from 

mouth.

Drainage area. 89 sq mi, approximately. 

Records available. July 1923 to September 1956.

Gage. Water-stage recorder. Datum of gage is 321.46 ft above mean sea level (city of 

Troy, N. Y., datum). Prior to Sept. 22, 1938, at site 90 ft upstream at same datum.

Average discharge.--33 years, 139 cfs.

Extremes. Maximum discharge during year, 2,480 cfs Mar. 7 (gage height, 5.15 ft); minimum, 

3.8 cfs Aug. 5 (gage height, 0.75 ft).

1923-56: Maximum discharge, 11,900 cfs Sept. 22, 1938 (gage height, 12.1 ft, from 

floodmarks); minimum, 1.7 cfs Oct. 15, 1930.

Remarks. Records good except those for periods of ice effect, which are fair. About 

12 cfs diverted from Quacken Kill, a tributary above station, for municipal supply.

Revisions. WSP 741: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 4 Nov. 5 to Sept. 3O

1.1 

1.3 

1.5

1.8 124

2.3 300

3.0 679

1.3

3.0

4.7

7.6

18

36

2.3 

3.0

4.0

63

128

303

679

1,430

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

53

40

34

29

26

51

163

243

205

119

80

63

51

44

51

76

258

212

184

*168

130

104

88

86

205

181

178

146

119 

146

391

3,924

127

1.43

1.64

Nov.

318

219

171

321

6O5

564

490

469

372

286

344

326

282

440

416

344

344

269

220

192

 169

150

134

150 

136

116

101

96

82

26

8,202

273

3.07

3.43

Dec.

64

58

65

132

178

135

92

*82

72

64

60

52

48

48

46

44

44

46

43

30

29

28

30

34 

38

42

4O

32

27

25

24

1,752

56.5

O.635

0.73

Jan.

23

22

23

25

27

26

24

20

27

32

170

220

230

19O

130

94

74

60

50

50

46

43

*40

38 

36

35

34

32

33

34

33

1,921

62.0

0.697

0.80

Feb.

32

33

31

30

31

31

32

33

32

31

30

36

40

38

96

100

76

64

56

52

50

48

*50

48

70

22O

180

150

120

1,840

63.4

0.712

0.77

Mar.

98

84

90

240

2O9

153

1.160

764

512

4O6

395

386

312

265

223

180

180

150

140

*135

120

118

126

120

106

110

99

84

78

79

76

7,198

232

2.61

3.01

Apr.

81

112

237

920

1,150

1,040

889

593

474

469

501

564

576

469

469

765

1.400

718

518

391

312

334

353

321 

269

*269

253

286

414

937

16,084

536

6.02

6.72

May

655

432

391

321

2S2

246

22O

182

150

153

150

134

128

116

101

94

103

92

83

76

67

57

60

76 

60

51

80

159

123 

264

350

5,456

176

1.98

2.28

June

253

213

281

238

178

142

110

88

74

71

119

84

62

54

*43

35

31

26

22

20

18

17

14

14 

13

11

12

15

14

12

2,284

76.1

0.855

0.95

July

11

9.7

8.4

7.6

11

19

18

15

13

13

11

9.2

12

40

32

22

18

14

11

9.2

11

12

11

13 

*12

13

12

9.2

7.6

7.2

6.9

419.0

13.5

0.152

0.18

Aug.

6.6

5.9

5.4

4.9

4.5

5.2

15

15

15

15

15

16

*17

18

IS

15

14

9.7

7.2

7.8

10

12

1O

11 

11

8.8

*8.8

8.4

8.8

11

13

341.0

11.0

0.124

O.14

Sept.

15

28

87

37

21

13

11

9.2

8.0

7.2

£.9

7^

8.1

15

18

28

53

64

40

51

59

37

33

HI

85

57

43

36

31

1,291.4

43.0

0.483

0.54

Calendar year 1955: Max 78O Min 4.O Mean 121 Cfsm 1.36 In. 18.38

Water year 1955-56: Max 1.4OO Min 4.5 Mean 139 Cfsm 1.56 In. El. 19

Peak discharge (base. 1.700 cfs). Mar. 7 (5 a.m.) 2.480 cfa (5.15 ft)j Apr. 17 (4:15 a.m. 1,920

of a (4.56 ft).

» Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 2, Dec. 6-18, Dec. 20 to Mar. 4, 

Mar. 16-22, 24-26, 28, 29 (doubtful gage-height record Dec. 24-26, Feb. 24 to Mar. 4).
HUDSON RIVER BASIN 101

Kinderhook Creek at Rossman, N. Y.

___ long 73°44'40", on right bank Just downstream from highway bridge 

.n Rossman, Columbia County, 1 mile upstream from Claverack Creek and 2^ miles downLocation. --La t 42°19'50 

in Rossman, Columbia 

stream from Stuyvesant Falls

Drainage area.--329 sq mi.

Records available.--March 1906 to December 1909, January 1911 to May 1914, and July 1928 

to September 1956 in reports of Geological Survey. January to December 1910 in report 

of State engineer and surveyor.

Gage.--Water-stage recorder. Datum of gage is 25.78 ft above mean sea level, datum of 

1929. Prior to May 1914, tape and weight gage at same site at different datum.

Average discharge.--31 years (1906-9, 1928-56), 478 cfs.

Extremes. Maximum discharge during year, 5,720 cfs Mar. 7 (gage height, 6.31 ft); minimum, 2.1 cfs July 4 (gage height, -0.36 ft); minimum daily, 8.6 cfs Aug. 12.

1906-14, 1928-56: Maximum discharge, 29,800 cfs Dec. 31, 1948 (gage height, 

19.8 ft, from floodmark); minimum, 1.5 cfs Aug. 30, 1953; minimum daily, 3.9 cfs 

Aug. 30, 1953.

Remarks.--Records good except those for periods of ice effect, which are fair. Diurnal 

fluctuation and slight regulation at low and medium flow caused by power and industrial 

plants above station.

Revisions. WSP 741: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 14 Nov. 15 to Sept. 30

0.8 66

1.1 129

1.5 263

2.0 504

2.5 829

3.0 1,250

4.0 2,320

0.0 

.2 12

23

42

89

167

1.5 

2.0 

2.5 

3.0 

4.0 

6.0

281

530

834

1,250

2,320

5,200

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfam

In.

Oct.

90

97

78

83

11

84

315 

460

594

434

336

373

321

207

230

586

1,370

1,020

1,040

*957

758

625

514

449

683

630

547

488

420

450

1.500

15,610

504

1.53

1.76

Nov.

1,250

957

808

972

2,040

2,070

1,730 

1,550

1,310

1,090

1,490

1,550

1,200

1,900

2.170

1,770

1,780

1,380

1,110

980

898

807

*749

652

669

541

539

520

469

422

35,373

1,179

3.58

4.00

Dec.

386

364

353

416

603

526

4E4 

356

345

338

284

301

251

257

*259

240

234

248

237

155

145

165

150

180

224

265

245

175

149

148

141

8,564

276

0.839

0.97

Jan.

150

200

165

142

TiT

155

225 

165

299

234

772

842

1.360

812

608

508

431

367

285

292

276

273

255

200

183

*168

193

171

194

192

145

10,405

336

1.02

1.18

Feb.

139

168

165

155

124

185

147 

150

154

153

140

260

440

336

421

600

386

351

314

262

225

179

*182

165

632

1.710

878

670

464

10,155

350

1.06

1.15

Mar.

418

457

834

1,060

870

676

5.380 

2,800

1,960

1,320

1,100

1,170

928

841

747

608

505

560

520

500

430

440

488

505

420

483

438

413

410

413

582

26,076

841

2.56

2.95

Apr.

388

495

867

2,150

3,760

4,000

3,710 

2,490

1,910

2,010

2,050

2,140

2,200

1,860

1,760

2,020

4,330

2,850

2,100

1,620

1,320

1,290

1,280

1,350

1,120

*1,040

1,030

972

1,180

1,560

56,852

1,895

5.76

6.43

May

1.470

1,050

1,020

920

905

814

759

686

601

587

698

576

580

579

514

486

510

460

432

389

369

331

313 372'

329

283

295

438

427

372

891

18,456

595

1.81

2.09

June

920

710

792

855

691

570

503 

433

381

317

394

335

277

282

224

192

178

*183

144

136

132

122

100

113

119

100

94

82

~a? 78

o£

9,539

318

0.967

1.08

July

70

76

61

ii

117

98

96 

94

88

55

70

66

69

113

168

136

103

68

79

72

74

76

71

77

69

81

*76

59

46

*57

45

2,441

78.7

0.239

0.28

Aug.

47

40

39

33

16

54

35 

33

31

31

21

8.6

56

30

30

27

19

22

12

43

12

13

52

27

19

17

33

29

23

29

33

914.6

29.5

0.090

0.10

Sept.

31

69

136

112

109

97

108 

80

75

61

73

38

52

45

37

79

148

152

164

141

189

157

129

454

656

453

340

293

215

207

4,900

163

0.495

0.55

Calendar year 1955: Max 2,170 Min 14 Mean 474 Cfsm 1.44 In. 19.57

Water year 1955-56: Max 4,330 Min 8.6 Mean 544 Cfsm 1.65 In. 22.54

Peak discharge (base, 3,600 cfs).-

cfs (5.88 ft); Apr. 17 (9 a.m.) 5,22

-Mar. 7 (4:15 p.m.) 5,720 cfs (6.31 ft); Apr. 6 

D cfs (6.01 ft).

4 a.m.) 5,010

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 20-24, 27, 28, Jan. 1, 2, 7, 8, Feb. 3-6, 24, 

Mar. 18-22.

505690 O - 59 - 8
102 HUDSON RIVER BASIN

Catskill Creek at Oak Hill, N. Y.

Location. Lat 42°24'20", long 74"09'05", on right bank Just downstream from highway 

bridge In southernmost part of Oak Hill, Greene County, 100 ft downstream from small 

tributary.

Drainage area. 98 sq mi , approximately.

Records available. March 1929 to September 1956 in reports of Geological Survey. May 

1910 to September 1956 (monthly discharge only) in reports of Board of Water Supply, 

City of New York.

Gage.--Water-stage recorder. Datum of gage is 612.65 ft above mean sea level, datum of 

1929. Prior to Aug. 4, 1930, chain gage at same site and datum.

Average discharge . 27 years (1929-56), 126 cfs.

Extremes. Maximum discharge during year, 12,300 cfs Oct. 16 (gage height, 13.95 ft, from 

floodmarks in gage house); minimum, 0.8 cfs Aug. 27, 28 (gage height, 2.62 ft).

1929-56: Maximum discharge, 12,500 cfs Nov. 25, 1950 (gage height, 14.08 ft, from 

floodmarks in gage house), from rating curve extended above 6,100 cfs on basis of 

slope-area determination of peak flow; minimum, about 0.05 cfs Sept. 5-7, 1929; minimum gage height, 0.59 ft Sept. 26, 27, 1939.

Remarks. Records good except those for periods of ice effect, backwater from debris, 

doubtful or no gage-height record, or those below 2 cfs, which are fair.

Revisions. WSP 756: Drainage area.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Itotal

Mean

Cfsm

In.

Oct.

13

12

10

9.1

8.4

116 

121

96

67

48

40

34

35

949

*5, 780

6.150

2,120

*990

621

388

270

198

150

133

152

127

106

90

78

1,270

1, 380

22,041.5

711

7.26

8.36

Nov.

650

388

281

544

426

306 

*243

224

175

147

194

180

140

782

438

429

379

263

212

192

173

152

138

167

131

114

100

97

76

*78

7,819

261

2.66

2.97

Dec.

68

62

67

234

218

143 

106

102

90

80

82

78

73

72

60

48

49

48

39

35

35

40

45

48

112

72

41

36

37

35 

35

2,290

73.9

0.754

0.87

Jan.

33

29

32

30

28

25 

21

15

20

230

410

760

436

175

128

*106

86

60

58

56

60

62

52

48

46

45

50

48

45

42 

39

3,275

106

1.08

1.24

Feb.

38

39

36

30

34

*27 

40

40

38

44

45

110

84

62

70

80

56

60

52

*45

40

35

45

45

270

435

243

156

102

2,401

82.8

0.845

0.91

Mar.

82

155

410

398

253

200 

1.620

*890

505

346

424

462

323

*256

198

*135

130

122

104

100

92

94

94

94

84

86

76

74

72

74

22.

8,023

259

2.64

3.04

Apr.

80

112

225

684

2.230

*1,770 

1,260

741

546

d625

d727

d862

d800

d770

d860

dl,880

dl,510

987

706

*513

441

680

597

485

419

428

433

950

935

1,020

24,276

809

8.26

9.21

May

549

3§8

374

312

269

232

210

174

144

136

124

116

121

*109

149

121

107

98

94

85

74

67

72

72

58

54

60

62

54

50 

50

4,595

148

1.51

1.74

June

58

56

80

70

56

*48 

42

36

32

32

41

30

*24

*20

18

17

16

14

12

10

8.8

8.1

7.6

8.3

*7.4

6.7

6.4

5.6

5.1

4.6

780.6

26.0

0.265

0.30

July

4.1

3.6

3.3

3.0

7.6

fi

12

12

*16

11

8.3

7.6

14

14

10

*7.4

5.6

5.3

5.0

6.4

6.4

7.2

6.9

6.0

5.1

4.2

3.6

3.2

3.0 

2 8 

237.6

7.66

0.078

0.09

Aug.

2.6

2.3

2.1

1.9

1.8

*1.8 

1.7

1.5

1.4

1.3

1.2

1.2

1.3

1.6

1.3

1.2

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.1

1.1

.9

*.9

1.0

1.4

1.6 

2.5

44.9

1.45

0.015

0.02

Sept.

2.3

a2.8

a2.5

a2.2

al.9

2.0 

2.0

1.9

1.8

1.8

1.8

1.8

1.8

1.8

2.0

c5.4

*c6.8

7.0

6.7

7.6

8.1

6.9

40

295

To

43

30

23

19

17

625.9

20.9

0.213

0.24

Calendar year 1955: Max 6,130 Min O.I Mean 178 Cfsm 1.82 In. 24.68

Water year 1955-56: Max 6,130 Min 0.9 Mean 209 Cfsm 2.13 In. 28.99

Peak discharge (base, 2.50O cfs). Oct. 16 (about 12:15 a.m.) 12,300 cfs (L3.95 ft); Oct. 31 

(2:30 a.m.) 3.9OO cfs (8.87 ft); Mar. 7 (6:3O a.m.) 3,530 cfs (8.52 ft); Apr. 5 (4 p.m.) 3,580 cfs 

(8.56 ft); Apr. 16 (about 3:30 p.m.) 2,600 cfs (7.67 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for Schoharie Creek at Prattsville.

c Backwater from debris.

d Doubtful gage-height record; discharge computed from partly reconstructed gage-height graph 

based on weather records and records for Schoharie Creek at Prattsville.

Note. Stage-discharge relation affected by ice Nov. 26, 27, Nov. 29 to Dec. 2, Dec. 1, 8, 10, 11, 

14-26, 28, Dec. 30 to Jan. 1, Jan. 7-12, 14, Jan. 18 to Feb. 1, Feb. 3-25, Feb. 29 to Mar. 2, 

Mar. 16 to Apr. 2 ifo gage-height record Feb. 7-2O).
HUDSON RIVER BASIN 103

Esopus Creek at Coldbrook, N. Y.

Location.--Lat n.--Lat 42°00'45" 42°00'45", long 74°16'10". on left bank at downstream side of highway 

ge at Coldbrook, Ulster County, If miles upstream from Ashokan Reservoir and

2-g miles south of Mount Tremper. 

Drainage area.--192 sq mi. 

Records available. October 1931 to September 1956 in reports of Geological Survey. January 1914 to September 1925 in reports of State engineer and surveyor. January 1914

to September 1956 (monthly discharge only) in reports of Board of Water Supply, City

of New York. 

Gage.--Water-stage recorder. Datum of gage is 621.54 ft above mean sea level, datum of

1929. Prior to June 15, 1916, chain gage at same site and datum. 

Average discharge. 42 years (1914-56), 457 cfs (adjusted for diversion). 

Extremes. Maximum discharge during year, 54,000 cfs Oct. 15 (gage height, 20.00 ft),

from rating curve extended above 13,000 cfs as explained below; minimum, 82 cfs Oct. 5

(gage height, 3.835 ft).

1914-56: Maximum discharge, 59,600 cfs Mar. 30, 1951 (gage height, 20.70 ft), from

rating curve extended above 13,000 cfs on basis of slope-area determinations at gage

heights 12.39, 15.15, and 20.70 ft; minimum daily, 8 cfs Oct. 14, 1914. 

Remarks.--Records excellent except those for periods of ice effect, which are good.

Water diverted from Schoharie Creek through Shandaken tunnel enters Esopus Creek about

6 miles above station and is included in records of daily discharge.

Rating tables, water year 1955-56, except periods of ice effect (gage height, in feet, and 

discharge, in cubic feet per second)

Oct. 16 to Apr. 28 Apr. 29 to Sept. 30

4.5 

5.0

73

126

314

559

6.0 1,230

7.0

9.0

11.0

13.0

15.0

2,250 

5,130 

9,480 

16,OOO 

24,000

4.0 

4.5 

5.0 

6.0 

8.0

126

314

569

1,380

3,730

10.0

12.0

14.0

15.0

7,360

12,500

20,000

24,000

4.3 

4.9 

5.4 

6.0

153

455

799

1,260

7.0 

8.0 

9.0

2,250

3,570

5,130

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Oct.

109 

98

93

88

!§.

276

460

426

382

318

271

242

222

741

22,900

23 . 800

6,300

3,060

1,930

1,330

1,000

769

627

551

522

441

382

346

310

4,820 

4,870

77,770

2,509

Nov.

2.230 

1,520

*1,170

1,640

1,230

1,030

903

838

732

661

761

709

640

717

702

896

994

870

799

709

627

545

488

461

416

387

359

336

*300 

280

23,950

798

Dec.

260 

246

242

305

314

275

245

245

238

215

215

205

205

*205

200

180

215

219

175

185

660

760

1,040

1.120

640

520

490

500

500 

490

490

11,799

381

Jan.

480 

470

483

478

472

460

460

440

472

607

654

709

*730

640

640

633

620

580

560

580

560

569

557

*540

530

520

534

532

516

540 

530

17,056

550

Feb.

*500 

500

500

480

516

505

516

516

510

522

528

7O9

620

560

588

600

560

563

551

*540

520

490

500

500

763

1.020

831

792

720

17,020

587

Mar.

700 

739

838

862

831

*728

1,050

1.190

1,020

846

862

903

761

695

601

500

490

440

400

380

350

359

364

360

320

328

323

320

310

310

305

18,485

596

Apr.

323 

372

601

1,090

*2,660

2,820

3,320

2,440

1,760

*1,550

1,460

1,450

1,440

1,340

1,520

3,730

*3,760

2,410

1,820

1,440

1,190

1,260

1,330

1,210

1,070

1,000

919

1,780

4.020

3,510

54,595

1,820

May

2.080 

1,600

1,500

1,370

1,160

1,010

909

777

684

635

594

554

533

*507

481

436

387

387

352

324

293

277

268

248

234

221

221

217

200

T5T ia t

18,833

608

June

225 

219

660

720

850

792

727

670

628

608

580

533

500

474

449

436

462

*412

393

381

376

370

358

358

347

335

352

341

324

314

14,194

473

July

308 

298

298

293

438

481

393

358

341

324

383

507

530

658

574

547

533

514

507

507

576

567

574

547

527

514

494

488

468

*462

449

14,458

466

Aug.

443 

436

424

418

413

413

412

399

387

*376

370

370

*412

481

463

449

443

436

436

424

412

405

393

381

376

364

358

353

347

3?5

352

12,477

402

Sept.

341 

416

352

330

314

314

308

287

272

333

412

*387

358

324

298

369

352

341

319

308

287

263

244

351

430

424

*492

601

520

436

10,783

359

Adjusted for diversiont

Mean 

Cf am 

In.

2,509 

13.1 

15.06

79£ 

4. 1C 

4.64

Calendar year 1955: 

Water year 1955-56:

212 

1.10 

1.27

107 

0.557 

0.65

165 

0.859 

0.92

525 

2.73

3.15

1,820 

9.48 

10.58

Observed

Max 23,800 Min 58 Mean 873 

Max 23,800 Min 86 Mean 796

608 

3.17 

3.65

196 

1.02 

1.14

58.4 

0.304 

0.35

e!9.H 

eO . 100 

eO.lH

e66.9 

eO.348 

eO.39

Adjusted

Mean 589 Cfsm 3.07 In. 41.66 

Mean 591 Cfsm 3.08 In. 41.92

Discharge measurement made on this day.

t Adjusted for diversion from Schoharie Creek; record of diversion furnished by Department of 

Water Supply, Gas and Electricity, City of New York.

e Obtained from curve of relation between Schoharie Creek at Pratbsville and Esopus Creek ab Coldbrook (adjusted).

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 1, Dec. 7, 8, 10-17, Dec. 19 to 

Jan. 2, Jan. 6-8, 13, 14, 18-21, 24-26, Jan. 31 to Feb. 4, Feb. 14, 16, 17, 21-24, 29, Mar. 1, 

16-21, 24, 25, 28, 29.
104 HUDSON RIVER BASIN 

Rondout Creek near Lowes Corners, N. Y.

Location. Lat 41°51'55", long 74"29'10", on left bank 100 ft downstream from small tributary, 350 ft upstream from highway bridge, 1 mile upstream from Sugarloaf Brook, 

1.1 miles east of Lowes Corners, Sullivan County, 2 miles southwest of Sundown, and 

2f miles upstream from Chestnut Creek.

Drainage area. 38.5 sq ml.

Records available. February 1937 to September 1956.

Sage. Water-stage recorder. Datum of gage is 874.44 ft above mean sea level, datum of 

"JT929. Prior to Nov. 24, 1937, staff gage and Nov. 24, 1937, to Oct. 3, 1938, chain 

gage, at highway bridge 350 ft downstream at different datum. Oct. 4, 1938, to July 5, 

1951, water-stage recorder at site three-quarters of a mile downstream at different 

datum (datum of gage lowered 1.00 ft July 3, 1949).

Average discharge. 19 years, 101 cfs.

Extremes . Maximum discharge during year, 6,940 cfs Oct. 15 (gage height, 10.38 ft), from 

rating curve extended above 1,600 cfs on basis of contracted-opening determination of 

peak flow; minimum, 12.7 cfs Sept. 14 (gage height, 1.79 ft).

1937-56: Maximum discharge observed, 7,600 cfs July -22, 1938, from rating curve 

extended above 2,000 cfs by logarithmic plotting; maximum gage height, that of Oct. 15, 

1955; minimum discharge, 4.8 cfs Sept. 4, 1953.

Remarks. Records excellent except those for periods of ice effect, which are good.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

73 

54

49

47

276

380

283

208

170

142

124

112

463

*5.500

1,930

*970

501

337

*264

221

182

156

*148

142

123

109

98

90

679

602

12,478

403

10.5

12.05

Nov.

*341 

271

237

368 

275

238

211

201

176

162

182

182

173

253

221

285

295

256

228

201

179

159

145

145

132

119

112

*105

96

j)8_

6,036

201

5.22

5.83

Dec.

83 

77

77

90

105

88

77

71

68

64

61

*57

54

52

53

47

47

46

44

29

31

35

38

40

51

39

31

29

32

32 

29

1,677

54.1

1.41

1.62

Jan.

30 

26

31

30 

29

27

28

24

45

81

*70

71

79

64

61

61

57

50

49

51

46

47

46

*42

41

40

40

38

39

47

43

1,433

46.2

1.20

1.38

Feb.

38 

40

40

t

35

39

36

36

40

40

54

46

»40

43

46

41

44

42

41

40

33

35

34

99

11573*

70

61

1,370

47.2

1.23

1.32

Mar.

56 

61

71

77 

75

90

*169

195

*160

140

145

151

134

131

118

110

108

96

92

86

83

88

88

86

77

79

79

77

77

75

71

3,145

101

2.62

3.04

Apr.

75 93-

170

*254 

444

*503

697

457

342

*312

303

299

299

282

373

9T7

789

*468

354

292

264

305

305

268

249

249

242

414

895

945

11,919

397

10.3

11.51

May

m412

326 

268

242

224

186

*164

161

144

144

133

136

135

128

115

125

115

105

98

91

87

81

73

69

98

*89

73 

67

5,031

162

4.21

4.86

June

104 

87

183

T52 

138

125

112

100

94

87

79

69

66

58

50

51

60

*45

40

38

38

38

36

37

31

28

47

38

29

£2.

2,087

69.6

1.81

2.02

July

25 

24

21

20 

66

*76

44

32

29

26

24

23

35

57

34

29

27

24

23

24

60

47

*49

45

45

37

33

31

29 

*28

1,093

35.3

0.917

1.06

Aug.

25 

24

23

21 

21

29

36

24

21

20

19

19

23

28

20

18

18

18

27

19

18

18

17

16

15

14

14

*14

15 

16

32

642

20.7

0.538

0.62

Sept.

26 

35

23

18 

16

18

20

16

14

14

13 *13

13

13

14

59

49

44

30

47

35

31

32

81

49

41

*39

*41

45 

40

929

31.0

0.805

0.90

Calendar year 1955: Max 3,500 Min 7.5 Mean 122 Cfsm 3.17 In. 43.02

Water year 1955-56: Max 3,500 Min 13 Mean 131 Cfsm 3.40 In. 46.21

Peak discharge (base. 1.200 cfs) . Oct. 15 (5:30 p.m.) 6,940 cfs (10.38 ft); Apr. 16 (4:30 p.m.) 

1,310 cfs (4.58 ft); Apr. 29 (9:30 p.m.) 1,350 cfs (4.62 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 14, 16, 20-23, 27, 28, 31, Jan. 2, 6, 8, 18, 

19, 21, 24-28, Feb. 1, 4-6, 22-24, Mar. 1, 17, 18.
HUDSON RIVER BASIN 105

Chestnut Creek at Grahamsville, N. Y.

Location. Lat 41°50'45", long 74°32'25", on right bank Just downstream from highway

bridge in Grahamsville, Sullivan County, 600 ft downstream from Red Brook and 2.1 miles 

upstream from mouth.

Drainage area. 20.9 sq mi.

Records available. November 1938 to September 1956.

Sage. Water-stage recorder and concrete control. Datum of gage is 880.96 ft above mean 

sea level, datum of 1929.

Average discharge. 17 years (1939-56), 40.5 cfs.

Extremes. Maximum discharge during year, 4,640 cfs Oct. 15 (gage height, 5.02 ft), from 

rating curve extended above 1,300 cfs on basis of slope-area determination at gage 

height 4.68 ft; minimum, 5.4 cfs Aug. 25-27, Sept. 15 (gage height, 0.685 ft).

1938-56; Maximum discharge, that of Oct. 15, 1955; minimum, 2.0 cfs Sept. 12, 1949; 

minimum gage height, 0.66 ft Feb. 7, 1939.

Remarks. .Records good except those for periods of ice effect, shifting control, or partly 

obstructed Intake, which are fair. Slight seasonal regulation caused by Beaverdam Pond 

on Red Brook.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

41

28

23

20

19

353

244

135

84

62

48

42

38

132

1.780

1,060

494

e205

e!25

e85

*e67

e62

e58

*59

65

55

48

43

41

609

284

6,409

207

9.90

11.40

Nov.

*130

96

90

178

98

79

74

74

62

59

95

90

74

172

102

208

15?

98

85

74

67

59

58

58

51

47

43

*43

38

26_

2,590

86.3

4.13

4.61

Dec.

36

34

36

56

BT

40

34

32

30

28

26

 26

24

22

23

21

21

20

*19

14.

15

16

18

20

25

19

15

14

15

15

14

779

25.1

1.20

1.39

Jan.

14

13

15

16

16

15

15

13

24

55

48

*46

46

30

26

24

23

18

18

19

17

17

17

16

*16

15

15

14

15

22

18

676

21.8

1.04

1.20

Feb.

16

17

16

14

IT

15

18

18

18

22

24

46

34

 24

31

28

22

29

32

28

23

19

17

17

92

87

49

3S

30

841

29.0

<L.39

1.50

Mar.

2630"

50

58

58

78

*163

To§" 186

82

79

72

61

55

48

39

39

38

36

34

33

36

39

41

34

36

38

38

37

38

39

1,749

56.4

2.70

3.11

Apr.

54

TJ

126

*161

352

303

471

54T

165

171

157

151

136

126

189

414

234

151

*116

97

83

101

123

114

97

108

105

128

258

280

5,285

176

8.42

9.40

May

130

130

146

101

83

78

85

66

*58

60

54

56

55

58

60

54

45

62

54

47

42

38

36

33

31

29

56

*54

38

33

40

1,912

61.7

2.95

3.40

June

82

79

-J5 129

59

49

42

37

34

34

35

29

27

23

21

19

19

17

*16

15

16

16

17

17

13

12

19

14

12

11

988

32.9

1.57

1.76

July

10

10

9.8

iil

37

*55

7f

21

17

14

12

11

15

19

14

12

11

9.2

9.2

11

32

23

27

19

16

15

12

11

9.2

9.2

*9.2

516.0

16.6

0.794

0.92

Aug.

9.2

8.6

8.0

7.5

7.5

11

11

8.6

7.8

7.5

6.8

8.0

12

11

8.3

7.2

6.8

6.5

7.8

6.8

7.0

7.0

6.5

6.2

5.6

5.4

576

*6.0

7.0

7.0

il

248.2

8.01

0.383

0.44

Sept.

13

15

8.3

7.0

6.2

8.8

9.2

6.5

6.0

5.8

*5.8

5.8

5.J.

5.6

6.0

26

22

19

12

19

13

11

16

39

2T

16

13

*14

13

12

380.6

12.7

0.608

0.68

Calendar year 1955: Max 1,780 Min 3.2 Mean 55.0 Cfsm 2.63 In. 35.72

Water year 1955-56: Max 1,780 Min 5.4 Mean 61.1 Cfsm 2.92 In. 39.82

§l.--0ct. 6 (3:30 p.m.) 654 cfs (2.56 ft): Oct. 15 (8:45 p.m.) 4,640 

.m.) 969 cfs (2.98 ft); Apr. 7 (9:30 a.m.) 724 ofs (2.73 ft)j Apr. 16 

Apr. 29 (8:45 p.m.) 733 cfs (2.74 ft).

Peak discharge (base, 500 cfs). Oct. 

cfs (5.02 ft); Oct. 30 (9:30 p... ', 

(2:30 p.m.) 510 cfs (2.46 ft); Apr. 29 (8:

* Discharge measurement made on this day.

e Shifting-control method used.

Note. Stage-discharge relation affected by Ice Nov. 29, 30, Dec. 13 to Jan. 2, Jan. 8, 9, Feb. 3, 

4, 6, 16, 17, 21-24, 29, Mar. 1, 17, 18, 21, 22, 25, 28. Partly obstructed Intake Apr. 30 to May 2; 

discharge computed on basis of notes by engineers and appearance of recorder graph.
106 HUDSON RIVER BASIN

Rondout Creek near Laokawaok, N. Y.

Location.--Lat 41°46 I 30", long 74°24'10", on left bank at downstream side of highway bridge 

known as Wllburs Bridge, 2j miles southeast of Laokawaok, Ulster County, and 3 miles 

downstream from Merrlman Dam (Rondout Reservoir).

Drainage area.--100 sq ml.

Records available. October 1931 to September 1956 In reports of Geological Survey. February 1906 to April 1910 '(at Honk Falls) and May 1910 to September 1925 In reports of 

State engineer and surveyor. May 1910 to September 1956 (monthly discharges) In 

reports of Board of Water Supply, City of New York.

Gage. Water-stage recorder and modified concrete control. Datum of gage Is 601.07 ft 

above mean sea level (levels by Board of Water Supply, City of New York). Feb. 13, 

1906, to Apr. 30, 1910, at site 3 miles downstream at different datum and May 1, 1910, 

to Feb. 15, 1939, at site half a mile downstream at datum 13.40 ft lower than present 

datum.

Average discharge. 6 years (1950-56), 65.7 cfs.

Extremes. Maximum discharge during year, 2,030 cfs Oct. 15 (gage height, 5.44 ft); minimum, 2.2 cfs Sept. 30 (gage height, 0.19 ft).

1906-56: Maximum discharge, 26,700 cfs Aug. 26, 1928 (slope-area determination by 

Board of Water Supply, City of New York); minimum dally, 0.3 cfs Sept. 29, 1948, Aug. 1, 

9, 10, 21-28, 1949.

Remarks. Records good except those for periods of Ice effect, which are fair. Plow regulated by Rondout Reservoir since October 1950. Subsequent to May 1951, entire flow 

above Merrlman Dam (drainage area, 94.4 sq ml), except for small releases, and during 

periods of spilling, diverted for water supply of city of New York.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 4 Nov. 4 to Sept. 30

0.6 16

.8 28

1.1 52

1.5 98

2.0 176

2.5 292

3.0 452

4.0 922

0.19 

.3 

.5

2.2 

4.3

1.5 

2.0 

2.5 

3.0 

4.0

98

187

302

453

922

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

23

21

20

20

21

68

67

42

23

25

35

32

30

73

751

372

126

77

64 

64

99

115

114

125

138

136

134

132

132

214 

184

3,457

112

+853

Nov.

157

150

150

211

T73

163

158

156

152

150

161

156

152

165

156

174

169

158

154 

148

146

144

143

143

139

139

137

135

135

154

4,608

154

+299

Dec.

134

134

134

135

*137

135

135

135

118

71

70

70

69

68

68

66

66

65

*65 

48

20

18

19

20

21

18

17

T5

21

20 

20

2,135

68.9

+50.0

Jan.

19

18

25

22

19

20

21

20

25

51

50

51

54

28

27

25

25

24

25 

24

23

25

25

*22

22

21

21

20

25

25 

22

754

23.7

+95.5

Feb.

20

21

20

18

21

20

23

23

23

24

26

37

31

27

50

29

61

122

125 

125

122

120

118

116

112

22

65

125

122

1,742

60.1

+75.5

Mar.

120

123

130

130

132

141

161

170

114

54

51

28

25

24

21

18

18

16

14 

13

59

74

75

76

72

74

75

77

75

75

77

2,252

72.6

+222

Apr.

80

85

98

104

128

125

158

68

67

IT

79

85

95

86

94

115

111

*156

154 

152

148

148

156

154

152

156

154

152

164

260

5,759

125

+758

May

*611

636

905

*665

418

188

146

292

*512

517

512

242

92

86

145

160

145

139

139 

157

155

155

155

134

134

134

139

139

*137

154

154

7,575

244

+92.6

June

141

141

161

148

144

141

157

135

154

154

134

152

150

150

128

128

150

*128

127 

127

127

125

125

125

123

122

123

122

122

120

3,944

151

+55.5

July

120

120

120

120

127

154

125

125

122

120

120

118

124

125

120

118

116

116

116 

115

127

122

*120

118

116

115

115

113

113

112

112

3,700

119

-21.5

Aug.

110

*110

110

108

108

112

Ho

108

108

108

108

108

110

108

108

108

107

108

108

108

108

108

108

1O7

107

106

106

*106

106

106 

107

5,548

108

-68.9

Sept.

106

107

104

104

104

81

22

101

101

101

101

101

100

101

101

51

4.6

58

98

101

100

100

100

62

4.2

*5.1

*2.7

2.6

2.4

2.J.

2,126.8

70.9

-2.40

Calendar year 1955: Max 1,460 Mln 3.3 Mean 169

Water year 1955-56: Max 905 Mln 2.2 Mean 108

* Discharge measurement made on this day.

t Change In contents In and diversion into and from Rondout Reservoir, equivalent in cubic feet 

per second, furnished by Board of Water Supply, City of New York. Equivalent change in contents and 

diversion during calendar year 1955, +120 cfsj during water year 1956, +197 cfs.

Note. Stage-discharge relation affected by ice Dec. 16, Dec. 20 to Jan. 5, Jan. 7-9, 14, 17-19, 

21, Jan. 25 to Feb. 6, Feb. 14, 16, 24, Mar. 16-21, 24, 25.
HUDSON RIVER BASIN 107

Rondout Creek at Rosendale, N. Y.

Location.--Lat 41°50'35", long 74°05'10", on left bank 30 ft upstream from upper highway

bridge (relocated) In Rosendale, Ulster County, and 3 miles upstream from Wallklll

River.

Drainage area. 386 sq ml. 

Records available. July 1901 to November 1903, January 1906 to December 1913, and August

1926 to September 1956 in reports of Geological Survey. January 1914 to January 1919

in reports of State engineer and surveyor. 

Gage. Water-stage recorder. Datum of gage Is 42.83 ft above mean sea level, datum of

1929. Prior to January 1919, chain gage on highway bridge 150 ft downstream at datum

4.0 ft lower.

Average discharge. 6 years (1950-56), ^21 cfs. 

Extremes. Maximum discharge during year, 35,800 cfs Oct. 16 (gage height, 26.8 ft, from

floodmarks), from rating curve extended above 15,000 cfs on-basis of contracted-opening

determination at gage height 23.93 ft; minimum, 26 cfs Dec. 29, 31 (gage height, 1.27ft);

minimum dally, 144 cfs Sept. 27.

1901-3, 1906-19, 1926-56: Maximum discharge, that of Oct. 16, 1955; minimum,

4.1 cfs Aug. 19, 1954; minimum gage height, 1.22 ft Aug. 1, 1955; minimum daily discharge, 8.5 cfs Sept. 30, 1948.

Remarks. Records excellent except those for periods of ice effect or fragmentary gageheight record, which are good, and those for period of no gage-height record, which are 

fair. Large diurnal fluctuations during low and medium flow caused by powerplant above 

station. Some regulation by Rondout Reservoir since October 1950. Subsequent to 

May 1951, entire flow above Merriman Dam (drainage area, 94.4 sq mi), except for small 

releases and during periods of spilling, diverted from Rondout Reservoir for municipal 

supply of city of New York.

Revisions (water years). WSP 641: Drainage area. WSP 756: 1933.

Rating tables, water year 1955-56, except periods of ice effect 

height, in feet, and discharge, in cubic feet per second)

Oct. 17 to Sept. 30

2.2 154

2.6 331

3.0 559

4.0 1,250

6.0 3,110

11.0 10,100

20.0 24,500

2.0 131

2.5 272

3.0 478

4.0 1,140

6.0 2,990

7.0 4,200

9.0 7,050

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

(t)

Oct.

310

225

170 

170 

170

240

2,650

1,700

1,080

720

480

410

320

300

14,500

25.500 

6,800

4,100

3,400

1,900

1,100

780

680

660

780

680

640

560

5OO

2,450 

4,700

76,675

2,473

+853

Nov.

2,400

1,650

1,100 

2.500 

2,100

1,550

1,240

820

760

780

860

960

1,290

1,540

1,500

1,860 

2,270

1,610

1,340

1,120

990

908

843

850

790

 696

634

608

*557

512

36,638

1,221

+299

Dec.

500

516

526 

646 

»796

660

567

513

457

430

381

369

343

*330

356

350 

340

310

300

250

235

200

225

235

290

267

207

191

185

179

11,334

366

+50.0

Jan.

163

155

176 

174 

180

188

175

159

194

580

*740

800

920

720

540

460 

422

368

310

307

312

3OO

*275

256

227

224

215

213

190

234 

350

10,527

340

+95.5

Feb.

220

200

210 

150 

200

175

215

230

250

300

390

780

800

540

560

580 

540

660

869

*871

702

512

531

474

871

1.500

887

906

727

15,850

547

Mar.

659

716

1,090 

1,320 

1,090

*1,370

2,320

2.860

2,680

1,690

1,460

1,330

1,100

1,050

982

846 

625

741

631

608

593

596

690

792

656

678

823

894

862

80S 

934

33,494

1,080

+75.3 +222

Apr.

1,010

*1,200

2,020 

2,170 

 3,290

3,740

4. 870

4,050

2,940

2,840

2,690

2,400

 2,240

1,920

1,980

4,260 

3,710

2,250

1,690

1,450

1,260

1,170

1,460

1,670

1,410

1,390

1,320

1,290

1,790

4,390

69,870

2,329

+738

May

2,750

2,240

2.900 

*2,260 

1,710

1,380

1,200

1,200

1,100

1,030

984

938

841

*622

802

755 

664

657

710

630

571

563

*520

499

43O

408

473

644

521

473 

458

30,933

998

+ 92.6

June

548

582

1,290 

1,230 

598

675

589

507

449

444

433

397

378

341

*f324

278 

327

310

289

276

*258

280

263

265

258

236

234

244

229

218

12,750

425

+33.5

July

206

203

217 

176 

293

995

718

454

386

414

315

*272

262

430

412

326 

300

272

239

230

349

734

483

426

417

374

326

286

252

*230 

220

11,217

362

-21.3

Aug.

208

202

194 

191 

180

194

f293

f26T

f217

186

202

186

186

*202

2OO

177 

180

173

174

172

171

184

179

180

170

172

163

164

168

164

167

5,866

189

-68.9

Sept.

223

264

285 

219 

192

188

221

159

190

176

165

*166

161

175

242

313 

273

258

258

268

361

286

261

369

280

164

*144

147

153

159

6,720

224

-2.40

Calendar year 1955: Max 23,50O Min 28 Mean 89O

Water year 1955-56: Max 23,500 Min 144 Mean 879

* Discharge measurement made on this day.

t Diversion from and change In contents in Rondout Reservoir (equivalent in cubic feet per second) 

furnished by Board of Water Supply, City of New York. Equivalent diversion and change In contents 

during calendar year 1955, +120 cfsj during water year 1956, +197 cfs.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Mote. Stage-discharge relation affected by ice Dec. 1, lo, 14, 16-23, Jan. 2, 10-15, Jan. 31 to 

FeFIT8 (fragmentary gage-height record Dec. 19, 20). No gage-height record Oct. 1 to Nov. 12; discharge estimated on basis of output and spill at High Falls powerplant and records for other stations in the basin.
108 HUDSON RIVER BASIN

Wallkill River near Unionville, N. Y.

Location. Lat 41°15 I 35", long 74°32'55", on right bank at downstream side of highway 

bridge on the Quarryville-Milton road, 1 mile upstream from small tributary, 2 miles 

south of the New York-New Jersey State line, and 3 miles south of Unionville, Orange 

County.

Drainage area. 144 sq mi.

Records available. September 1937 to September 1956.

Gage.--Water-stage recorder. Altitude of gage is 390 ft (from topographic map). Prior 

ifo Nov. 16, 1949, wire-weight gage at same site and datum.

Average discharge. 19 years, 225 cfs.

Extremes.--Maximum discharge during year, 2,730 cfs Oct. 16 (gage height, 11.01 ft); minimum, 34 cfs Jan. 8 (gage height, 3.21 ft, result of Ice action).

1937-56: Maximum discharge, 6,880 cfs Aug. 19, 1955 (gage height, 13.35 ft); minimum, 6.4 cfs Sept. 30, 1941; minimum gage height, 2.855 ft Aug. 5, 6, 1955.

Remarks. Records excellent except those for periods of Ice effect, backwater from aquatic 

vegetation or overbank storage, or no gage-height record, which are fair.

Rating tables, water year 1955-56, except periods of lee effect or backwater 

from aquatic vegetation or overbank storage (gage height, In feet, and 

discharge, In cubic feet per second)

Oct. 1 to Feb. 19 Feb. 20 to Sept. 30

3.3 42

4.0 140

5.5 420

7.0 739

8.5

10.0

11.0

1,210

1,940

2,720

3.3 43

3.7 100

5.0 353

6.0 564

7.0 

8.0 

9.0

805

1,080

1,440

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfsm

In.

Oct.

127

US

94

81

74

150

441

500

502

378

245

188

159

318

1,420

2.510

2,480

*cl,950

c 1,550

cl,250

cl,020

c800

C640

o520

*c430

C370

C3ZO

277

245

3O8

515

19,978

644

4.47

5. IS

Nov.

512

398

321

348

374

334

287

294

281

245

*385

494

406

478

570

c640

csoo

C780

C720

c660

C540

*c440

C410

c360

323

287

264

249

220

180

12,600

420

2.92

3.25

Dec.

175

167

171

202

220

193

*155

135

130

a!2S

a!20

al!2

*a!04

98

102

88

91

91

86

72

66

64

64

70

82

96

74

66

60

58

-5J"

3,394

109

0.757

0.88

Jan.

54

54

58

62

62

60

56

50

s5

33S

399

332

310

193

160

125

114

104

*110

102

94

88

84

74

72

68

58

58

62

96

239

3,814

123

0.854

0.99

Feb.

125

104

TS5

160

124

130

473

C780

c780

cS80

542

604

657

425

315

330

250

352

C720

c780

c5SO

320

270

205

230

395

315

259

210

11,260

388

2.69

2.91

Mar.

*190

213

361

469

375

319

325

426

160" 531

367

381

333

311

345

370

270

320

270

300

300

270

295

337

280

283

330

370

*40S

373

414

10, 594

342

2.38

2.74

Apr.

469

607

692

744

821

854

852

900

967

1,060

1.110

1,080

996

870

699

673

714

S20

488

408

359

323

341

401

329

*293

321

273

345

786

19,395

646

4.49

5.01

May

1.160

1,120

1,030

961

791

563

637

734

586

452

414

359

337

295

273

253

*223

211

217

211

189

164

148

156

141

124

130

175

146

119

110

12,429

401

2.78

3.21

June

167

181

255

225

164

133

114

100

87

87

102

97

80

*70

65

73

341

332

156

*97

87

105

89

78

76

69

89

141

97

70

3,825

128

0.889

0.99

July

58

54

54

60

106

250

215

135

205

640

800 eSo"

540

640

720

560

370

260

200

165

190

245

205

160

135

120

120

124

106

90

78

8,285

267

1.85

2.14

Aug.

*72

68

60

54

52

60

112

106

76

64

56

52

*50

60

64

56

48

42

41

47

90

~58 140

62

52

45

42

39

38

11

43

1,916

61.8

0.429

0.49

Sept.

70

64

116

104

66

74

280

225

122

84

72

66

*60

52

52

96

148

122

98

80

76

66

SI

104

130

89

72

74

86

80

2,889

96.3

O.S69

0.75

Calendar year 1955: Max 5,240 Mln 7.7 Mean 2S6 Cfsm 1.85 In. 25.08

Water year 1955-56: Max 2,510 Mln 37 Mean 302 Cfsm 2.10 In. 28.52

Peak discharge (base. 1.20O efs). Oct. IS (9 p.m.) 2,730 cfs (11.01 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of discharge measurement, weather records, 

and records for other stations In the Wallkill River basin.

c Backwater from overbank storage.

Mote. Stage-discharge relation affected by Ice Nov. 3O, Dec. 1, 8, 9, 14-16, 19-24, Dec. 27 

to Jan. 9, Jan. 15-30, Feb. 1-6, 17, 22-24, 29, Mar. 1, 16-22, 25, 27, 28 (no gage-height record 

Dec. 31 to Jan. 7). Backwater from aquatic vegetation June 30 to Sept. IS.
HUDSON RIVER BASIN 109

Rutgers Creek at Gardnerville, N. Y.

Location Lat 41°20'40" , long 74°29'10", on left bank 30 ft upstream from highway bridge 

at Gardnerville, Orange County, 1.7 miles southeast of Johnson, and 2.2 miles upstream 

from mouth.

Drainage area. 59.7 sq mi.

Records available.--July 1943 to September 1956.

Gage. Water-stage recorder. Modified concrete control since July 1944. Datum of gage is 

404.48 ft above mean sea level, datum of 1929. Prior to June 22, 1948, staff gage at 

same site and datum.

Average discharge. 13 years, 93.0 cfs.

Extremes. Maximum discharge during year, 4,780 cfs Oct. 16 (gage height, 9.91 ft), from 

rating curve extended above 2,200 cfs as explained below; minimum, 3.9 cfs Aug. 29 

(gage height, 2.035 ft) .

1943-56: Maximum discharge, 8,490 cfs Aug. 19, 1955 (gage height, 12.38 ft, from 

floodmark in gage shelter), from rating curve extended above 2,200 cfs on basis of flowover-dam determination at gage height 8.88 ft and slope-area determination at gage 

height 12.38 ft; minimum observed, 0.27 cfs (Vug. 12, 1944; minimum gage height observed, 

1.30 ft Oct. 15, 1943.

Remarks. Records good except those for periods of ice effect, backwater from rocks, or 

shifting control, which are fair. Prior to (Vug. 18, 1955, occasional regulation for 

short periods during low flow by dam 0.1 mile above station.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

28

24

18

15

12.

247

817

509

373

185

118

90

*72

326

2,730

5.760

1,580

764

368

239

167

132

106

98

107

85

72

65

59

195 

327

13,688

442

7.40

8.53

Nov.

169

113

96

200

172

117

98

*118

96

84

288

226

143

305

299

547

777

298

199

180

147

141

*111

106

88

79

72

68

52

44

5,433

181

3.03

3.38

Dec.

42

40

48

72

88

*64

44

39

36

31

32

28

24

21

23

19

18

17

16

14

13

14

16

21

26

24

18

15

14

16

15

908

29.3

0.491

0.57

Jan.

14

13

14

16

18

16

13

9^2

27

130

118

135

145

130

86

62

39

*50

32

28

24

23

22

20

18

16

15

14

13

64

136

1,460.0

47.1

0.789

0.91

Feb.

51

34

40

34

31

31

270

430

360

340

330

500

390

171

158

*184

104

294

563

371

172

106

64

43

135

283

143

96

72

5,800

200

3.35

3.61

Mar.

58

69

223

374

228

228

389

444

418

233

172

192

142

*114

122

100

74

96

68

72

80

82

108

140

110

112

178

219

231

203

270

5,549

179

3.00

3.46

Apr.

351

460

484

524

550

482

412

464

503

*658

571

374

266

192

167

356

297

182

137

110

94

88

170

224

122

108

154

110

206

391

9,207

307

5.14

5.74

May

220

142

328

205

151

115

63J

345

172

*151

129

101

88

71

92

73

55

56

62

51

38

32

28

32

24

21

24

33

25

IS

20

3,540

114

1.91

2.21

June

86

71

169

*82

41

29

22

17

15

15

20

*16

12

9.7

8.1

6.8

8.9

8.9

7.0

6.0

6.0

*11

11

11

13

*8.8

12

17

12

6.6

760.8

25.4

0.425

0.47

July

10

17

19

19

33

62

52

38

58

70

46

40

64

176

98

56

42

33

26

22

39

57

44

c34

C24

cl9

cl8

C20

CIS

ell

cB^j;

1,270.2

41.0

0.687

0.79

Aug.

C7.0

C6.4

*C6.2

5.8

5.7

7.2

*14

11

8.4

7.3

7.5

7.0

6.1

5.7

5.4

4.8

5.2

5.4

4.4

±±L

11

15

11

7.6

6.4

5.7

5.1

4.7

4.2

*4.1

6.0

215.4

6.95

0.116

0.13

Sept.

7.0

7.3

14

9.4

6.7

29

133

58

37

23

15

12

9.6

7.9

7.3

15

33

32

22

17

14

11

10

*33

38

26

18

16

15

15

691.2

23.0

0.385

0.43

Calendar year 1955: Max 5,430 Min 1.1 Mean 121 Cfsm 2.03 In. 27.43

Water year 1955-56: Max 3,760 Min 4.1 Mean 133 Cfsm 2.23 In. 30.23

Peak discharge (base. 1.500 cfs). Oct. 16 (3.a.m.) 4,780 cfs (9.91 ft). 

* Discharge measurement made on this day. 

c Backwater from rocks.

Note.--Stage-discharge relation affected by Ice Nov. 29, Dec. 1, 2, 6-8, 10-17, 19-24, Dec. 26 tc 

Jan. 4, Jan. 7-30, Feb. 7-13, 22-25, 29, Mar. 1, 16-26. Shifting-control method used June 1-21.
110 HUDSON RIVER BASIN

Pochuck Creek near Pine Island, N. Y.

Location. Lat 41°16'30", long 74°28'20", on right bank 15 ft downstream from highway 

bridge at Newport, 2.3 miles south of Pine Island, Orange County, 3 miles west of 

Edenville, and 4 miles upstream from mouth.

Drainage area. 98.0 sq mi.

Records available. September 1937 to September 1956.

Gage. Water-stage recorder. Modified concrete control since July 1944. Datum of gage 

is 382.39 ft above mean sea level (levels by Corps of Engineers).

Average discharge. 19 years, 166 cfs.

Extremes. Maximum discharge during year, 3,090 cfs Oct. 16 (gage height, 8.62 ft); minimum, 18 cfs Jan. 24 (gage height, 1.115 ft, result of ice action}.

1937-56: Maximum discharge, that of Oct. 16, 1955; minimum, 2.8 cfs Sept. 9, 10, 

1944.

Remarks. Records good except those for periods of ice effect, no gage-height record, or 

backwater from aquatic vegetation, which are fair.

Rating tables, water year 1955-56, except periods of ice effect or backwater 

from aquatic vegetation (gage height, In feet, and discharge, in cubic 

feet per second)

Oct. 1 to Apr. 9 Apr. 10 to Sept. 30

1.3 

1.5 

2.0 

4.0

28

53

154

493

5.0 

6.0 

7.0 

8.3

687

1,000

1,530

2,710

1.2 

1.4 

2.0

22 3.0 340

5.0 861

6.0 1,220

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

92

86

90

86 

84

116

191

224

232

227

208 

186

162

*217

908

2.680

*2,630

1,730

1,220

a933

a740

634

547

484

450

408

367

333

302

317

528

17,412

562

5.73

6.61

Nov.

660

*596

520

509 

549

524

482

452

423

389

*425 

448

425

478

528

568

664 6"36~

579

534

506

*473

435

405

381

354

330

310

278

219

14,080

469

4.79

5.34

Dec.

175

T54

148

156 

160

150

*134

123

119

110

106 

98

92

82

86

68

78

74

68

54

52

52

54

58

72

74

54

49

45

43

40

2,828

91.2

0.931

1.07

Jan.

40

40

42

45 

45

43

39

3450-

154

184

211

235

200

150

125

112

94

*110

88

82

76

72

62

58

54

47

46

49

83

169

2,839

91.6

0.935

1.08

Feb.

106

86

125

116 

108

110

278

412

313

273 

292

313

276

240

*226

201

218

325

357

310

245

220

180

177

214

205

182

150

6,625

228

2.33

2.51

Mar.

145

156

187

198

187

178

180

219

267

273

255 

240

*226

203

200

203

150

200

210

205

205

190

186

200

180

180

189

200

206

203

210

6,231

201

2.05

2.36

Apr.

232

255

312

357 

437

540

600

713

841

861

*873 

849

797

744

687

690

715

681

602

518

445

382

371

344

300

267

253

233

243

516

15,671

522

5.33

5.95

May

870

830

782

706 

605

505

548

584

515

447

»399 

355

302

259

227

202

173

162

158

154

143

127

' 118

116

109

100

101

112

105

96

92

10,002

323

3.30

3.80

June

112

116

136

*171 

*160

130

112

100

89

85

87 

82

72

65

57

58

84

84

78

63

55

55

51

46

41

*37

Is

52

42

37

2,402

80.1

0.817

0.91

July

33

32

33

30

eS

101

91

73

114

220

304 

308

338

406

478

522

471

377

269

162

139

152

139

114

101

92

94

96

84

77

73

5,583

180

1.84

2.12

Aug.

67

58

*52

48 

45

52

87

75

62

54

48 

42

38

40

37

35

32

34

31

30

52

62

48

41

34

30

28

26

24

*23

27

1,362

43.9

0.448

0.52

Sept.

28

25

34

37 

34

38

112

86

66

52

42 

*38

35

32

30

61

77

68

58

52

46

41

37

*52

57

44

38

36

62

78

1,499

50.0

0.510

0.57

Calendar year 1955 : Max 2,700 Mln 5.1 Mean 210 Cfsm 2.14 In. 29.10

Water year 1955-56: Max 2,680 Min 23 Mean 236 Cfum 2.41 In. 32.84

Peak discharge (base. 840 cfs). Oct. 16 (7:30 p.m.) 3,090 cfs (8.62 ft)j Apr. 11 (lO:45 a.m.) 

883 cfs (5.07 ft); May 1 (11:30 a.m.) 889 cfs (5.09 ft).

* Discharge measurement made on this day.

a. No gage-height record; discharge estimated from reconstructed gage-height graph based on recorded 

range in stage and normal recession pattern.

Note. Stage-discharge relation affected by ice Dec. 10-14, 16, 17, 19-24, Dec. 27 to Jan. 3, 

Jan. 5-9, 14, 15, 17-21, 24-28, Feb. 1, 3-6, 21-24, 29, Mar. 1, 17-22, 24, 25. Backwater from 

aquatic vegetation Aug. 9 to Sept. 12, Sept. 20-24.
HUDSON RIVER BASIN 111

Quaker Creek at Florida, N. Y.

Location. Lat 41"20'20", long 74°21'45", on right bank at downstream side of farm bridge, 

a quarter of a mile north of railroad station at Florida, Orange County, and 5 miles 

southwest of Goshen.

Drainage area. 9.74 sq ml.

Records available. September 1937 to September 1956.

Gage. Water-stage recorder. Concrete control since August 1943. Altitude of gage Is 

390 ft (from topographic map). Prior to Dec. 12, 1949, staff gage at same site and 

datum.

Average discharge.--19 years, 12.9 cfs.

Extremes . Maximum discharge during year, 626 cfs Oct. 15 (gage height, 5.29 ft), from 

rating curve extended above 210 cfs as explained below; minimum,, 0.5 cfs Aug. 19 (gage 

height, 1.31 ft).

1937-56: Maximum discharge, 1,050 cfs Sept. 21, 1938 (gage height, 6.0 ft, from 

floodmarks), from rating curve extended above 210 cfs on basis of contracted-opening 

determination at gage height 5.8 ft; minimum, 0.1 cfs Sept. 16-20, 25, 26, 1939, 

Aug. 10-14, Sept. 6, 8-12, 1944.

Remarks. Records excellent except those for periods of ice effect, backwater from aquatic 

vegetation, or those below 1 cfs, which are good.

Revisions (water years).--WSP 951: 1938(M).

Rating tables, water year 1955-56, except periods of Ice effect or 

backwater from aquatic vegetation (gage height, In feet, and 

discharge, In cubic feet per second)

Oct. 1 to Feb. 7 Feb. 7 to Sept. 30

1.4

1.5

1.6

1.7

1.8

1.2

1.4

3.1

5.6

9.1

14

2.0 

3.0 

4.0 

5.0

29

144

284

522

1.32 0.6

.37 

1.45

1.5

1.6

1.0 

2.2 

3.2 

5.8

1.8

1.9

2.0 

3.0

15

21

29

144

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfam

In.

Oct.

4.2

3.1

2.5

2.1

2.0

39

46

31

19

13

11

9.6

8.6

79

296

270

153

98

71

54

43

33

26

25

20

17

14

13

12

89

58

1,562.1

50.4

5.17

5.96

Nov.

34

*26

25

53

35

26

25

*26

19

19

65

29

23

70

37

~73" 113

44

40

35

33

25

21

19

16

15

14

13

9.6

8.4

991.0

33.0

3.39

3.78

Dec.

8.2

8.4

10

13

17

8.8

6.8

6.6

6.5

5.6

4.8

4.5

4.0

3.8

4.2

3.3

3.1

3.0

2.8

2.5

2.3

2.2

2.5

2.8

3.9

3.4

2.4

1.9

1.7

T i . y5

1.7

148.6

4.79

0.492

0.57

Jan.

1.6

1.4

1.4

1.7

2.0

1.8

1.6

I-?

19

27

16

28

18

10

8.4

8.2

7.4

6.2

*5.8

5.4

5.0

4.5

4.5

3.6

2.9

2.6

2.3

2.1

2.2

~~S 32 A 

u.4

242.3

7.82

0.803

0.93

Feb.

4.8

775

14

6.0

9.2

12

96

5T

32

31

29

52

21

17

19

16

*13

71

38

27

18

13

11

9.0

29

18

14

12

10

703.0

24.2

2.48

2.68

Mar.

9.0

34

23

18

18

36

47

27

21

21

20

*18

19

23

15

13

16

14

15

15

16

18

19

16

18

25

26

*23

27

35

663.0

21.4

2.20

2.53

Apr.

54

50

67

*75

63

46

53

61

86

105

*73

53

43

35

38

59

40

29

25

21

19

17

30

19

15

19

*16

15

30

77

1,333

44.4

4.56

5.09

May

31

33

49

29

24

25

80

53

26

25

*20

19

17

16

17

12

C9.8

oil

11

010

08.0

07.0

05.4

03.9

C3.0

02.6

03.9

C3.9

2.8

2 4 S^T

543.8

17.5

1.8O

2.08

June

6.2

5.0

22

*7.0

4.5

3.6

3.0

2.4

2.1

2.3

2.4

1.9

 1.6

1.4

1.3

3.5

3.3

1.6

1.2

1.1

1.4

1.5

1.1

1.1

1.0

*.8

377

1.8

1.1

* g

91.3

3.O4

0.312

0.35

July

0.8

.8

.7

77

6.3

5.O

2.9

1.7

5.4

3.0

1.8

2.4

5.6

12

4.6

2.9

2.2

1.6

1.4

1.4

4.5

3.2

2.2

1.6

1.4

1.2

1.6

1.4

1.1

1.0

.9

83.3

2.69

0.276

0.32

Aug.

0.9

.8

.7

.7

.7

1.1

 1.5

1.0

.9

1.0

1.0

.8

.9

1.0

.9

.7

.9

.6

.7

i§.

4.1

T77

l.O

.9

.8

.7

.7

.7

.7

*.6

1.1

30.6

0.987

0.101

0.12

Sept.

0.9

.8

.7

4 o

9.9

779

2.6

1.6

1.3

1.1

1.1

1.1

1.0

1.5

3.9

3.3

2.4

1.6

1.8

1.4

1.3

1.5

*6.0

2.9

1.9

1.5

2.1

2.3

1.9

68.5

2.28

O.234

0.26

Calendar year 1955: Max 323 Mln O.2 Mean 14.3 Cfam 1.47 In. 19.96

Water year 1955-56: Max 296 Mln 0.6 Mean 17.7 Cfsm 1.82 In. 24.67

Peak discharge (base. 20O cfs). Oct. 15 (8 p.m.) 626 ofs (5.29 ft); Nov. 16 (1:30 p.m.) 856 cfs 

(3.82 ft).

* Discharge measurement made on this day.

o Backwater from aquatic vegetation.

Note. Stage-discharge relation affected by Ice Nov. 29 to Dec. 1, Dec. 6, 7, 10-16, 19-23, 

JanTTT-9, Jan. 17 to Feb. 1, Feb. 3-6, 21-25, Feb. 28 to Mar. 1, Mar. 16-22, 24, 25.
112 HUDSON RIVER BASIN

Wallkill River at Pellets Island Mountain, N. Y.

Location. Lat 41°22'50", long 74°24'50", on right bank 10 ft downstream from highway 

bridge at Pellets Island Mountain, Orange County, 2 miles downstream from small tributary, and 4^ miles south of Middletown.

Drainage area. 385 sq mi.

Records available. December 1919 to September 1956.

Gage. Water-stage recorder. Datum of gage is 357.43 ft above mean sea level, adjustment 

of 1912. Prior to May 5, 1936, staff or chain gage at same site at datum 10 ft higher 

and May 5, 1936, to Mar. 20, 1937, at datum 5 ft higher. Mar. 20 to June 4, 1937, 

water-stage recorder at site 100 ft downstream at datum 5 ft higher and June 5, 1937, 

to Apr. 18, 1950, at present datum.

Average discharge.--36 years (1920-56), 577 cfs.

Extremes. Maximum discharge during year, 9,580 cfs Oct. 17 (gage height, 21.22 ft); minimum, 68 cfs Aug. 30 (gage height, 0.86 ft).

1919-56: Maximum discharge, 12,400 cfs Mar. 14, 1936 (gage height, 25.0 ft, present 

datum); maximum gage height, 25.7 ft Mar. 16, 1920, present datum (before channel 

improvements in 1936); minimum discharge, 9 cfs Sept. 16, 1932.

Remarks. Records excellent except those for periods of ice effect, which are good.

Rating tables, water year 1955-56, except periods of ice effect (gage height, in 

feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 16 Nov. 17 to July 9 July 10 to Sept. 3O

2.0 203

4.0 527

6.0 993

10.0 2,330

15.0 4,740

21.0 9,360

0.8 62

1.0 80

2.0 193

4.0 529

6.0 1,020

10.0 2,360

12.0 3,220

0.8 62

1.0 80

2.0 193

4.0 527

6.0 993

7.0 1,290

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9 

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

308

293

250 

221

205

556

1,890

1,590

1,430 

1,040

*752

598

514

835

4,370

7,050

9.150 

*8,950

7,210

5,200

3,400

2,300

1,780

1,470

1,240

1,040

897

796

720

1,120

1,740

68,893

2,222

5.77

6.66

Nov.

1,630

1,390

1,140 

1,350

1,360

1,200

1,040

1,050

963 

864

1,430

1,430

1,220

1,550

1,740

2,130

2.860 

2,290

2,010

1,820

1,620

1,440

*1,240

1,120

985

888

826

774

698

574

40,632

1,354

3.52

3.93

Dec.

521

474

470 

553

624

555

451

387

365 

343

300

319

290

260

256

225

225 

230

210

190

175

160

155

165

190

225

190

160

145

140 

125

9,078

293

0.761

0.88

Jan.

120

118

116 

124

135

130

125

112

T40 

600

839

877

948

657

482

442

374 

»293

308

303

260

260

235

215

205

190

165

150

155

245 

600

9,953

321

0.834

0.96

Feb.

436

301

379 

460

348

360

1,100

1,780

1,850 

1,670

1,510

1,780

1,720

1,240

962

*993

802 

1,140

1.940

1, 780

1,410

848

696

566

655

1,050

863

705

583

29,927

1,032

2.68

2.89

Mar.

520

545

924 

1,280

1,040

907

1,150

1,380

1.510 

1,240

1,020

1,020

915

*823

844

872

580 

740

600

620

680

720

754

861

784

766

896

1,060

1,130

1,050

1,200

28,426

917

2.38

2.75

Apr.

1,440

1,770

1,910 

2,060

2,170

2,140

2,120

2,340

2,490 

*2.920

2,780

2,460

2,210

1,970

1,740

1,900

1,870 

1,670

1,430

1,220

1,060

948

1,020

1,160

943

858

904

797

972

1,710

50,982

1,699

4.41

4.92

May

2,060

2,170

2.500 

2,000

1,740

1,410

2,080

1,840

1,500 

*1,260

1,120

982

880

776

736

674

591 

551

570

547

497

432

387

378

352

312

304

382

355

295 

272

29,753

960

2.49

2.87

June

427

457

667 

6TT

*478

385

321

272

240 

230

248

244

206

180

158

152

370 

505

332

210

174

186

180

157

148

133

T47

226

193

143

8,380

279

0.725

0.81

July

119

107

104 

105

163

437

430

304

307 

746

1,010

996

934

1,220

1.250

1,120

890 

683

540

414

401

512

451

360

296

254

243

260

230

197 

179

15,242

492

1.28

1.47

Aug.

163

146

132 

119

110

114

*185

210

162 

132

114

103

*94

101

106

98

90 

87

80

78

120

ISO" 225

131

107

92

81

76

73

*69

3,656

118

0.306

0.35

Sept.

102

107

134

174

128

119

516

467

285 

189

149

130

117

104

96

145

270 

254

215

172

157

137

121

»172

262

192

150

134

156

188

5,542

185

0.481

0.54

Calendar year 1955: Max 9,890 Mln 15 Mean 760 Cfsm 1.97 In. 26.80

Water year 1955-56: Max 9,130 Mln 69 Mean 821 Cfsm 2.13 In. 29.03

Peak discharge (base, 2.700 cfs).-

cfs (11.49 ft); Apr. 10 (2 a.m.) 3,0

-Oct. 17 (9 p.m.) 9,580 efs (21.22 ft); Nov. 17 (5 a.m.) 2,990 

.. , DO cfs (11.51 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 11, 13, 14, 16-24, Dec. 28 to Jan. 10, 

Jan. 21-30, Feb. 6, Mar. 1, 2, 17-22.
HUDSON RIVER BASIN 113

Wallkill River near Phillipsburg, N. Y.

Location. Lat 41 e 26'00", long 74°22'20", on left bank a quarter of a mile upstream from 

abandoned electric railway bridge and Masonic Creek, 1 mile southwest of Phillipsburg, 

Orange County, and 1.9 miles northeast of New Hampton.

Drainage area. 419 sq mi.

Records available. October 1936 to September 1956.

Gage. Water-stage recorder. Datum of gage is 352.61 ft above mean sea level, adjustment 

of 1912. Prior to July 26, 1937, staff gage at same site and datum.

Average discharge.--20 years, 660 cfs.

Extremes.--Maximum discharge during year, 9,090 cfs Oct. 17 (gage height, 11.24 ft); minimum, 76 cfs Aug. 30 (gage height, 0.79 ft).

1936-56: Maximum discharge, 9,200 cfs Aug. 21. 1955 (gage height, 11.33 ft); minimum, 14 cfs Aug. 5, 6, 1955 (gage height, 0.40 ft).

Remarks. Records excellent except those for periods of ice effect, which are fair. 

Revisions. WSP 1111: Drainage area.

Rating tables, water year 1955-56, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 16 Nov. 17 to Sept. 30

1.3 200

2.O 442

3.0 945

5.0 

11.0

2,41O 

8,800

0.8 

1.2 

2.0

78

173

427

3.0 944

5.0 2,410

7.0 4,390

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

321

307 

26O

229

209

709

2,340

1,860

1,610

1,180

862

686

582

851

5,090

7,840

8.80O

8,710

7,39O

5,690

3,930

2,560

1,950

1,600

1,370

*1,150

1,010

897

8O5

1,270 

2,040

74,108

2,391

5.71

6.58

Nov.

1,790

1,510 

1,260

1,540

1,540

1,34O

1,170

*1,170

1,080

970

1,610

1,590

1,36O

1,730

1,950

2,560

5.350

2,500

2,140

1,930

1,700

1,520

1,310

1,190

1,O60

956

889

835

754

44,963

1,499

3.58

3.99

Dec.

552

507 

498

580

677

 604

490

410

390

360

330

340

310

270

270

245

240

250

230

210

195

180

170

185

225

25O

210

175

155

150

140

9,798

316

0.754

0.87

Jan.

130

125 

*122

135

150

140

135

16"5 120

672

859

907

1.O10

740

511

472

397

313

320

310

270

27O

250

230

210

200

180

160

17O

25O

630

10,553

34O

O.811

0.94

Feb.

524

326 

*374

500

380

380

1,070

1,8OO

2,OOO

1,820

1,680

2,030

1,90O

1,390

1,130

1,140

932

1,250

2.230

1,980

1,580

1,OOO

800

620

60O

1,160

987

8OO

*65O

33,033

1,139

2.72

2.93

Mar.

575

6O2 

1,010

1,470

1,200

1.O6O

1,390

1,62O

1.740

1,400

1,170

1,150

1.03O

938

95O

1,020

660

800

660

680

740

780

84O

96O

88O

847

1,010

1,180

*1,240

1,150 

1,330

32,082

1,035

2.47

2.85

Apr.

1,610

1,97O 

2,130

2,290

2,410

2,32O

2,310

2,570

2,830

5.440

3,140

2,670

2,340

2,060

1,830

2,O7O

2,000

1,750

1,480

1,260

1,120

994

1,080

1,250

1,020

926

981

859

1,040

1, 790

55,540

1,851

4.42

4.93

May

2,130

2,230 

2.510

2,120

1,81O

1,460

2,330

1,950

1,570

1,510

1,170

1,040 '952

811

788

709

*614

570

590

561

511

445

595

582

360

322

313

378

364

306

29O

31,267

1,009

2.41

2.78

June

437

472

666"

507

404

559

295

257

242

*254

251

217

189

168

160

551

485

555

*220

178

181

181

160

147

137

149

217

200

15O

8,668

289

0.690

0.77

July

124

115

110

108

T64

416

451

515

500

711

1,020

1,010

965

1,250

1.250

1,140

914

687

554

412

408

507

452

564

505

265

245

265

240

206

186

15,587

496

1.18

1.57

Aug.

*170

157 

142

150

117

128

185

217

175

142

122

110

104

108

110

106

99

95

91

*86

153

228

135

144

117

101

91

84

80

78

93

3,936

127

0.305

O.35

Sept.

108

120 

132

178

140

150

500

469

289

197

152

*134

122

110

104

147

269

263

222

181

160

140

124

179

269

2O3

160

140

152

189

5,703

190

O.453

0.51

Calendar year 1955: Max 9,060 Min 18 Mean 833 Cfsm 1.99 In. 26.98

Water year 1955-56: Max 8.8OO Mln 78 Mean 888 Cfsm 2.12 In. 28.87

Peak discharge (base, 3.1OO cfs).-

3,70O cfs (6.31 ft)j Apr. 1O (1:3O a

-Oct. 17 (10 p.m.) 9,090 cfs (11.24 ft); Nov. 16 (10:30 p.m.) 

.m. ) 3,650 cfs (6.26 ft).

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 7 to Jan. 9, Jan. 14, 19-3O, Feb. 

Mar. 17-25.
114 HUDSON RIVER BASIN

Wallkill River at Gardiner, N. Y.

Location. Lat 41°41'10", long 74°09'55", on left bank 400 ft upstream from highway bridge, 

500 ft downstream from Shawangunk Kill, and three-quarters of a mile northwest of 

Gardiner, Ulster County.

Drainage area. 711 sq mi.

Records available. September 1924 to September 1956.

Gage. Water-stage recorder. Datum of gage is 185.70 ft above mean sea level, adjustment 

of 1912.

Average discharge. 32 years, 1,076 cfs.

Extremes. Maximum discharge during year, 30.800 cfs Oct. 16 (gage height, 19.81 ft); minimum, 75 cfs Aug. 18 (gage height, 2.20 ft).

1924-56: Maximum discharge, that of Oct. 16, 1955; minimum, 19 cfs Aug. 9, 1955 

(gage height, 1.895 ft).

Remarks. Records good except those for periods of ice effect or fragmentary or no gageheight record, which are fair. Large diurnal fluctuations during low and medium flow 

caused by powerplant above station.

Drainage area.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 30 May 1 to Sept. 30

2.7 

2.9 

3.2 

4.0

193

271

423

1,000

6.0

10.0

14.0

18.0

2,990

8,500

15,400

25,000

2.4 124

2.8 258

3.4 555

4.0 998

6.0 2,990

8.0 5,540

Discharge, in cubic feet per aecond, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Cfam

In.

Oct.

491

432

427 

336 

279

1,260

4,900

3,510

2,840

2,010

1,460

 1,130

933

878

11,100

22.800

14,300

11,800

10, 200

8,140

6,040

4,240

3,040

2,410

2,130

1,800

1,550

1,370 

1,220

2,580

5,120

130,726

4,217

5.93

6.84

Nov.

3,330

2,570

2,090 

3,480 

3,280

2,470

2,040

2,020

1,830

1,600

2,980

3,010

2,310

3,030

3,630

4,150

5.580

4,430

3,490

3,150

2,760

2,460

2,090

1,880

1,650

1,480

1,360

1,280 

1,160

974

77,564

2,585

3.64

4.06

Dec.

834

757

750 

974 

 1.270

1,090

860

660

580

520

460

470

440

400

380

330

320

350

330

310

290

270

250

270

340

450

350

290 

240

235

220

15,290

493

0.693

0.80

Jan.

210

205

200 

225 

250

230

220

195

340

1,750

2,500

2.720

2,610

1,970

1,270

860

720

580

620

600

520

500

 430

390

350

330

300

270 

310

380

880

22,935

740

1.04

1.20

Feb.

1,000

600

156" 520 

780

640

1,040

3,100

3,600

3,100

2,800

3,300

3,840

2,500

 1,930

1,900

1,500

1,840

4.030

3,530

2,610

1,600

1,100

900

1,410

2,430

1,780

1,440 

1,080

56,700

1,955

2.75

2.97

Mar.

920

1,355

1,680 

2,630 

2,130

2,100

3.980

3J870

3,580

2,580

2,090

1,990

 1,770

1,580

1,490

1,500

1,060

1,140

1,080

960

1,180

1,230

1,370

1,660

1,530

1,480

1,850

2,180 

2,270

2 050

2^510

58,460

1,886

2.65

3.06

Apr.

3,020

3,780

4,200 

4,160 

4,430

4,110

4,370

4,590

4,970

5.880

5,260

4,370

 3,710

3,220

2,990

4,170

3,750

2,940

2,500

2,060

1,800

1,620

2,000

2,510

1,900

1,670

1,810

1.610 

1,860

4, 690

99,950

3,332

4.69

5.23

May

3,400

3,150

4.240 

3,650 

2,930

2,440

2,710

3,150

 2,470

a2,040

al,820

al,670

al,540

1,390

1,370

1,250

1,080

f990

f982

f941

845

724

626

574

555

504

474

f568

f490

f490

49,641

1,601

2.25

2.60

June

f613

822

1,310 

1.460 

990

706

 568

495

405

364

412

354

370

320

258

241

280

476

509

373

302

274

260

268

256

190

214

263 

302

247

13,902

463

0.651

0.73

July

195

208

125

T3S

246

694

814

550

526

632

998

1,120

1,080

1,290

1.460

1,320

1,130

858

671

531

579

762

680

509

423

369

350

314 

332

292

255

19,449

627

0.882

1.02

Aug.

228

210

 193 

170 

167

205

216

280

281

210

184

160

180

154

148

158

150

136

139

152

164

189

295

254

184

161

159

135 

 132

T44

166

5,704

184

0.259

0.30

Sept.

192

199

270 

236 

243

308

610

784

532

347

241

258

194

195

180

226

476

660

446

358

320

279

232

367

358

 398

300

260 

224

242

9,935

331

0.466

0.52

Calendar year 1955: Max 25,200 Min 21 Mean 1,414 Cfsm 1.99 In. 27.00

Water year 1955-56: Max 22,8OO Min 125 Mean 1,531 Cfsm 2.15 In. 29.33

Peak diacharee (base, 6.40O cfa).-- Oct. 16 (3 a.m.) 3O.800 cfs (19.81 ft); Oct. 31 (2:15 a.m.)

6,620 cfa (8.76 ft).

Discharge measurement made on this day.

a No gage-height record; discharge estimated on baala of normal recession pattern, weather records, 

and records for other stations in the Wallkill River basin.

f Fragmentary gage-height record; discharge computed on basla of partly estimated gage helghta.

Note.. Stage-discharge relation affected by Ice Dec. 7 to Jan. 11, Jan. 16 to Feb. 12, Feb. 22-24, 

29, Mar. 1, 16-21.
HUDSON RIVER BASIN 115

East Branch Wappinger Creek near Clinton Corners, N. Y.

Location.--Lat 41°48'45", long 73°45'35", on left bank 30 ft upstream from old milldam, 

160 ft upstream from highway bridge, 560 ft upstream from Wappinger Creek, and 1-J- miles 

south of Clinton Corners, Dutchess County.

Drainage area. 33.6 sq ml.

Records available. January to September 1956.

Gage. Staff gage read twice dally. Crest-stage Indicator since May 1956.

Extremes. Maximum discharge during period, 1,250 cfs Feb. 25 (gage height, 4.2 ft, from 

high-water- mark), from rating curve extended above 470 cfs by logarithmic plotting; 

minimum observed, 4.4 cfs Aug. 20 (gage height, 0.96 ft).

Remarks. Records fair except for periods of doubtful or no gage-height record, which are 

poor.

Rating table, Jan. 1 to Sept. 30, 1956 (gage height, in feet, 

and discharge, in cubic feet per second)

0.97 

1.0 

1.2 

1.6

2.0

4.7 

5.4

2.4 

2.8

3.1 

3.5

98

158

252

481

Discharge, in cubic feet per second, January to September 1956

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cfsm

In.

Oct. Nov. Dec. Jan.

al8

al5 

a!7

al8

18

18

16

15

19

*71

58

75

*62

38

31

28

27

22

23

20

18

19

20

17

18

16

16

16

16

31

46

842

27.2

0.81O

0.93

Feb.

25

24 

24

19

23

19

35

38

36

60

77

202

194

*100

1O9

90

5O

186

178

148

74

43

38

34

568

296

74

40

33

2,637

9O.9

2.71

2.92

Mar.

*38

a49 

a98

107

71

78

*232

202

*152

98

93

91

72

69

66

57

61

58

a5o

a41

47

39

44

33

46

50

58

66

71

66

64

2,367

76.4

2.27

2.62

Apr.

73

118 

214

318

*454

354

270

214

191

214

168

146

135

122

116

229

329

d!42

116

112

109

107

112

109

94

88

83

82

92

227

5,138

171

5.O9

5.69

May

1O9

*92 

113

102

90

9O

102

*85

77

75

d68

d64

d60

d58

d58

d52

d48

d47

d48

d50

d56

d56

d50

d40

d38

d38

d37

d37

d33

d31 v=sd32

1,936

62.5

1.86

2.14

June

*38

43

d65

d44

35

33

27

23

21

29

40

3O

23

20

19

20

19

a!8

d!6

d!5

*13

15

14

16

20

14

16

16

15

13

730

24.3

0.723

0.81

July

11

11 

11

9.6

19

38

29

27

29

20

14

12

IS

46

a41

a25

a22

a!7

a!5

*al4

a21

a23

al7

al5

a!3

a!3

al4

al3

all

a9 . 6

a8.4

586.6

18.9

0.562

O.65

Aug.

a8. 4

*7.5 

a6.6

a6.2

5.9

5.9

5.9

5.9

5.9

5.9

5.9

5.9

6.2

7.0

6.4

5.9

5.9

5.2

4.9

4.7

6.4

~7.7 11

7.O

5.9

5.7

5.4

5.2

5.2

*5.7

7.0

194.3

6.27

0.187

0.22

Sept.

7.5

10 

13

9.0

a7.2

10

41

14

8.7

7.0

6.7

6.4

5.7

5.4

5.4

11

13

20

12

13

13

10

9.6

45

*29

19

15

15

15

11

407.6

13.6

0.405

O.45

Calendar year : Max Min Mean Cfsm In.

Water year : Max Min Mean Cfsm In.

Peak discharge (base. 500 cfs) . Feb. 25 (about 10 p.m.) 1,250 cfs (4.2 ft); Apr. 5 (about 12 p.m.) 

61 ofs (3.81 ft); Apr. 17 (about 12:3O a.m.) 544 ofs (3.58 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of pattern of gage-height graph and records 

for other stations in the Wappinger Creek basin.

d Doubtful gage-height record; discharge computed on basis of records for other stations in the 

Wappinger Creek basin.
116 HUDSON RIVER BASIN

Wappinger Creek near Clinton Corners, N. Y.

Location. Lat 41°48'55", long 73°45'50", on right upstream wing wall of highway bridge 

850 ft downstream from abandoned bridge abutment of Philadelphia, Reading, and New 

England Railroad, 1,900 ft downstream from East Branch Wappinger Creek, and 1 mile 

south of Clinton Corners, Dutchess County.

Drainage area.--90.6 sq mi.

Records available. January to September 1956.

Gage. Staff gage read twice daily. Crest-stage indicator since May 1956.

Extremes. Maximum discharge during period, 1,010 cfs Apr. 5 (gage height, 8.55 ft, from 

graph based on gage readings); minimum observed, 9.8 cfs Aug. 30 (gage height, 

4.64 ft).

Remarks. Records fair except those for periods of ice effect, shifting control, or backwater from debris, which are poor.

Rating table, Jan. 1 to Sept. 30, 1956, except periods of loe effect, 

backwater from debris, or shifting control (gage height. In feet, 

and discharge, In cubic feet per second)

4.6

4.7

4.8 

5.0

7.2

14

22

45

5.4 

6.0 

7.0 

8.2

117

273

584

916

Discharge, In cubic feet per second, January to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct. Nov. Dec. Jan.

39

35

38

39

e41

e37

e37

e30

e46

»e!57

e!37

e214

*eTfT

el!5

e92

e88

e85

65

68

65

63

60

52

40

57

52

54

5Z

5Z

86

135

2,308

74.5

0.822

0.95

Feb.

70

72

70

57

68

iCo" 52

111

106

139

177

485

375

*258

298

273

180

348

425

316

182

141

141

115

411

497

?67

115

119

5,968

206

2.27

2.45

Calendar year : Max Mln

Mar.

*141

190

320

346

249

252

*646

555

*506

369

323

298

243

226

209

184

b!50

blBO

b!70

b!45

141

135

146

1Z1

T53

160

170

190

200

190

180

7,528

243

2.68

3.09

Apr.

198

30T

542

726

*898

844

791

673

599

642

554

491

448

391

369

530

713

545

432

382

349

343

379

349

279

264

246

252

317

656

14, 506

484

5.34

5.95

May

545

*35B"

375

343

301

270

288

*226

195

190

174

164

155

150

144

130

119

115

121

124

139

141

126

98

88

88

86

85

74

67

T5

5,576

180

1.99

2.29

June

*79

86

144

TOO

79

068

C58

c52

C54

068

c72

C62

054

046

C42

C40

C37

C37

C35

c32

*C29

31

30

29

33

26

28

30

26

23.

1,530

51.0

0.563

0.63

July

22

21

23

20

38

81

70

54

45

37

29

25

37

"83 119

52

45

35

30

*28

42

46

36

31

28

27

30

28

25

22

19

1,228

39.6

0.437

0.50

Aug.

19

*17

16

16

16

16

15

15

14

12

12

11

11

14

13

12

12

11

12

12

15

20

15

15

15

13

11

10

15

*11

17

428

13.8

0.152

0.18

Sept.

15

22

26

18

15

23

52

26

19

16

15

15

*14

13

13

19

23

35

24

25

24

20

21

 BO- 77

36

27

29

28

23

763

25.4

0.280

0.31

Mean Cfsm In.

Water year : Max Mln Mean Cfsm In.

Peak discharge (base, 600 efs).--Feb. 12 (about 3 p.m.) 656 cfs (7.25 ft); Feb. 25 (about 9 p.m.) 

902 cfs (8.15 ft); Mar. 7 (about 7 p.m.) 785 cfs (7.72 ft); Apr. 5 (about 10 p.m.) 1,010 cfs 

(8.55 ft); Apr. 10 (about 1 a.m.) 753 cfs (7.60 ft); Apr. 17 (about 4 p.m.) 769 cfs (7.66 ft); 

Apr. 30 (about 11 a.m.) 692 cfs (7.38 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice (no gage-height record Mar. 19, 20).

c Backwater from debris.

e Shifting-control method used.
HUDSON RIVER BASIN 117

Little Wappinger Creek at Salt Point, N. Y.

Location. Lat 41°48'25", long 73°47'40", on right bank 180 ft downstream from highway 

bridge at Salt Point, Dutchess County, 180 ft upstream from abandoned bridge abutment 

of New York, New Haven, and Hartford Railroad, and 0.7 mile upstream from Wappinger 

Creek.

Drainage area. 32.2 sq mi.

Records available. January to September 1956.

Gage. Staff gage read twice daily. Crest-stage indicator since May 1956.

Extremes. Maximum discharge during period, 473 cfs Apr. 5 (gage height, 5.00 ft, from

graph based on gage readings); minimum observed, 2.2 cfs Aug. 30 (result of discharge

measurement); minimum gage height observed, 2.02 ft Aug. 18, 19, 20, 21.

Remarks. Records good except those for period of backwater from debris, which are fair.

Rating tables, Jan. 1 to Sept. 30, 1956, except period of backwater from 

debris (gage height, In feet, and discharge, In cubic feet per second)

Jan. 1 to Mar. 8 Mar. 9 to Sept. 30

2.26 

2.3 

2.6 

3.0

7.3

8.7

24

57

3.5 

4.0 

4.5

130

240

375

1.99

2.0

2.1

2.2

2.3 

2.5

2.3

2.4 

3.8

5.6

8.7

18

2.7 

3.0 

3.5 

4.0 

5.0

122

212

473

Discharge, In cubic feet per second, January to September 1956

Day

1

Z

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct. Nov. Dec. Jan.

9.0

7.8

8.6 

8.8

9.1

9.1

9.5

7.3

875 *26

43

59

*66

34

30

33

31

26

25

21

18

21

16

15

14

11

12

11

10

18

29

646.2

20.8

0.646

0.75

Feb.

19

15

16 

14

17

13

FT

36

27

44

64

191

167

*99

125

112

62

133

173

130

74

43

39

30

160

219

TT5

74

47

2,280

78.6

2.44

2.63

Mar.

*40

50

126 

142

119

106

*238

310

*Fl2~

152

128

114

97

86

80

72

59

68

57

53

43

43

69

49

49

57

67

79

81

76

69

2,991

96.5

3.00

3.45

Apr.

100

136

212 

276

*542

340

281

252

216

250

204

168

157

135

124

181

271

206

166

138

120

101

119

125

101

99

94

12~2 79

202

5,317

177

5.50

6.14

May

173

*1475

162 

128

106

99

94

*79

68

64

59

57

51

45

44

40

35

36

37

34

30

27

24

24

22

19

19

21

19

17

16

1,789

57.7

1.79

2.07

June

*15

18

if23

20

16

15

14

17

26

20

16

13

11

9.1

8.7

8.0

*7.3

6.6

6.1

5.9

6.1

6.1

5.6

5.4

5.9

5.9

5.2

5.0

389.9

13.0

0.404

0.45

July

4.7

4.5

4.2 

4.0

579

17

18

10

8.3

6.9

6.1

5.4

6.6

66

17

23

17

13

9.5

*8.7

12

18

14

10

8.3

7.6

7.3

8.0

6.9

5.6

5.0

383.5

12.4

0.385

0.44

Aug.

4.7

*4T5~

4.2 

3.8

3.8

3.8

3.5

3.5

3.5

3.2

3.1

3.0

3.0

3.1

3.1

3.0

3.0

2.7

2.7

2.7

2.7

3.0

3.1

3.0

3.0

3.8

3.0

2/4

2.3 *3TT

3.5

100.8

3.25

0.101

0.12

Sept.

3.4

4.7

5.8 

4.9

4.0

6.2

7.0

5.6

4.9

4.2

3.8

3.4

3.2

370- 3.0

5.0

6.2

6.4

5.8

5.8

5.0

4.5

4.5

7.0

*9.2

7.0

4.0

4.2

5.0

4.9

151.6

5.05

0.157

0.18

Calendar year : Max Mln Mean Cfsm In.

Water year : Max Mln Mean Cfsm In.

'Peak discharge (base, 260 efs).--Peb. 12 (about 12:30 p.m.) 268 cfs (4.11 ft); Feb. 25 (about 

9 p.m.) 408 cfs (4.61 ft); Mar. 8 (about 10 p.m.) 332 cfs (4.35 ft); Apr. 5 (about 12 p.m.) 473 cfs 

(5.00 ft); Apr. 9 (about 12 p.m.) 298 cfs (4.37 ft); Apr. 17 (about 10 a.m.) 298 cfs (4.37 ft); 

Apr. 30 (about 11 a.m.) 262 cfs (4.22 ft).

* Discharge measurement made on this day.

Note. Backwater from debris Aug. 27 to Sept. 30.

505690 O - 59 - 9
118 HUDSON RIVER BASIN 

Wapplnger Creek near Wappingers Palls, N. Y.

Location. Lat 41°39'05", long 73"53'SO", on left bank 700 ft downstream from Red Oak Mill 

dam and 4^ miles northeast of village of Wappingers Palls, Dutchess County.

Drainage area.--188 sq mi.

Records available. May 1903 to June 1905 (gage heights only), August 1928 to September 

1956.

Gaee.--Water-stage recorder. Datum of gage is 114.37 ft above mean sea level (levels by 

Corps of Engineers). May 1903 to June 1905 staff gage at site 2^ miles downstream at 

different datum. Aug. 7, 1928, to Sept. 25, 1931, water-stage recorder at site 2 miles 

downstream at different datum.

Average discharge. 38 years, 246 cfs.

Extremes.--Maximum discharge during year, 8,170 cfs Oct. 16 (gage height, 12.47 ft), from 

rating curve extended above 3,800 cfs as explained below; minimum daily, 16 cfs Aug. 28; 

minimum recorded gage height, 2.545 ft Aug. 20.

1928-56: Maximum discharge, 18,600 cfs Aug. 19, 1955 (gage height, 19.60 ft, from 

floodmarks in gage shelter), from rating curve extended above 3,800 cfs on basis of 

flow-over-dam and contracted-opening determinations at gage height 18.02 ft and 

contracted-opening and flow-over-road determination at 19.60 ft; minimum, about 1 cfs 

Aug. 5, 1936 (gage height, 1.99 ft).

Remarks. Records excellent except those for periods of ice effect or backwater from

dlfEris, which are good, and those for periods of no gage-height record, which are fair.

Revisions (water years). WSP 741: 1933. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect or backwater from 

debris (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 6 Apr. 7 to July 13 July 14 to Sept. 30

2.9 50

3.4 123

3.9 257

4.9 684

6.0

8.0

11.0

1,350

2,960

6,300

2.7 

3.2 

3.6

36

92

170

4.0 

5.0 

7.0

291

736

2,100

2.5 

2.7 

3.0

3.4 

4.0

122

291

Discharge, In cubic feet per second, water year October 19S5 to September 1956

Day

1

2

3

4

5

6 

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

119

107

94

85

81.

84 

166

204 

238

*182

149

129

116

112

491

5.810

4,716

2,860

2,310

1,730

1,230

960

779

689

*623

542

482

430

397

440

996

27,345

882

4.85

5.59

Nov.

835

653

570

710

1,200

1,130 

896

801 

694

608

969

931

752

892

936

914

996

801

700

653

594

551

500

469

426

*393

361

350

323

^" ^

20,889

696

3.82

4.27

Dec.

271

251

251

281

527

284

241

213 

198

184

168

161

151

140

140

135

112

114

114

86

 84

86

86

92

100

98

82

80

76

72.

4,756

153

0.841

0.97

Jan.

76

66

74

75

76

74 

68

52 

80

*185

290

340

580

270

192

173

161

125

110

114

96

94

100

76

84

86

84

76

74

103

231

4,085

152

0.725

0.83

Feb.

135

118

122

90

104

86 

150

215 

195

270

425

844

991

598

*543

676

418

613

901

740

486

310

ZBO

215

417

1,560

626

459

500

12,667

457

2.40

2.59

Mar.

288" 260

551

620

540

500 

977

1,240 

1,150

800

658

615

*5Z5

478

447

422

500

550

550

500

290

290

320

360

290

355

577

439

469

443

430

15,590

496

2.75

5.14

Apr.

476

690

1,140

1,420

1,790

1,870 

1,580

1,440 

1,170

1,400

1,180

*980

860

760

700

980

1,450

1,140

900

760

660

580

620

700

560

520

520

460

560

1,180

29,046

968

5.52

5.94

May

960

7SO

880

720

600

540 

540

480 

420

580

360

350

320

300

300

270

240

210

220

225

206

186

175

168

151

*158

158

153

140

127

125

10,762

347

1.91

2.20

June

158

158

247

225

168

144 

*121

107 

98

98

158

125

107

94

87

79

75

75

*68

65

60

62

60

59

57

56

52

56

51

49

2,975

99.2

0.545

0.61

July

46

42

*42

40

5T

124 

158

96 

88

85

68

58

67

264

241

*149

109

87

72

64

66

95

81

68

59

52

51

54

49

44

41

2,587

83.5

0.459

0.55

Aug.

57

5T

*31

28

28

28 

27

26 

26

24

24

25

25

24

22

22

21

20

20

20

22

22

21

22

a21

a!9

a!7

a!6 arf

20

*21

730

25.5

0.129

0.15

Sept.

50" 19

41

59

52

47 

aTQ- 158

a52

a45

a40

a54

30

28

28

32

44

65

58

51

55

49

44

86

112

*86

69

60

61

59

1,602

53.4

0.293

0.33

Calendar year 1955 : Max 10,500 Mln 11 Mean 392 Cfsm 2.15 In. 29.23

Water year 1955-56 : Max 5,810 Mln 16 Mean 363 Cfsm 1.99 In. 27.15

crs if.us rt;; Apr. 10 is a.m.} 1,520 

Apr. 30 (2 p.m.) 1,380 cfs (6.04 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of adjacent gage heights, weather records, 

notes by engineers, and records for Flshklll Creek at Beacon, and other stations In the Wapplnger 

Creek basin.

Note. Stage-discharge relation affected by Ice Dec. 14-18, Dec. 20 to Jan. 3, Jan. 6-14, 18-29, 

Feb. 1-10, 22-24, 29, Mar. 1, 4-6, 17-22, 24, 25 (no gage-height record Mar. 4-6). Backwater from 

debris Apr. 10 to May 20 (no gage-height record May 16-20).
HUDSON RIVER BASIN 119

Pishkill Creek at Beacon, N. Y.

Location. Lat 41°30'40", long 73"56'55", on left bank at upstream side of Bridge Street 

Bridge in Beacon, Dutchess County, and 2^ miles upstream from mouth.

Drainage area. 186 sq mi.

Records available. July 1901 to November 1903, September 1944 to September 1956. 

Published as "at Glenham" 1901-3.

Gage. Water-stage recorder. Datum of gage is 131.17 ft above mean sea level (levels by 

Corps of Engineers). July 1901 to November 1903 chain gage at site 1 mile upstream at 

different datum.

Average discharge. 12 years (1944-56), 315 cfs.

Extremes. Maximum discharge during year, 8,280 cfs Oct. 16 (gage height, 11.78 ft); minimum, 1.4 cfs Aug. 12 (gage height, 1.05 ft).

1944-56: Maximum discharge, 8,800 cfs Aug. 20, 1955 (gage height, 12.13 ft); minimum, 1.2 cfs July 9, 1954 (gage height, 1.045 ft).

Remarks. Records excellent except those for periods of Ice effect, which are good, and 

those for periods of fragmentary or no gage-height record, which are fair. Diurnal 

fluctuation at low and medium flow caused by research laboratories and manufacturing 

plants above station.

Revisions. WSP 1031: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge. In cubic feet per second)

Oct. 1 to Feb. 8 Feb. 9 to Apr. 6 Apr. 7 to Sept. 30

1.4 55

1.8 135

2.4 330

3.0 58Z

5.0 1,660

8.0 3,850

11.0 7,22O

2.1 210

2.5 350

3.0 569

4.0 

6.0

1,080

2,280

1.2 12

1.3 25

1.7 100

2.3 257

3.0 519

5.0 1,540

Discharge, In cubic feet per second, water year October 1955 to September 1955

Day

1

2

3

4

5

6 

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

117

108

97

91

*85

95 

210

229

232 

*178

148

130

119

128

866

6.760

6,180

3,430

2,350

1,950

1,570

1,240

1,010

861

*799

719

620

545

496

579

1,37O

33,312

1,075

5.78

6.66

Nov.

1,490

1,080

850

988

1,580

1.740 

1,380

1,180

1,050 

897

1,030

1,290

1,070

1,080

1,340

1,230

1,400

1,230

1,010

928

850

779

699

650

592

536

496

467

434

377

29,723

991

5.33

5.94

Dec.

357

334

330

353

585

353 

300

260

246 

239

222

209

196

178

176

173

156

156

151

122

*bllO

119

112

117

128

138

112

108

102

104

95

6,141

198

1.06

1.23

Jan.

102

89

95

95

97

97 

91

70

9? 

264

389

395

*573

438

278

236

212

184

158

156

b!24

b!25

135

b!04

117

121

114

106

102

127

321

5,614

181

0.975

1.12

Feb.

202

555" 170

b230

193

203 

508

527

445 

*419

525

599

750

485

378

390

327

335

750

745

552

366

290

b240

290

78O

70?

432

339

12,229

422

2.27

2.45

Mar.

*283

5BT

378

424

407

394 

670

1,090

1.110 §55"

695

632

*564

513

504

494

380

374

394

b330

339

335

358

403

358

358

382

432

454

450

472

15,164

489

2.63

3.03

Apr.

504

659

872

1,180

1,480

1.740 

1,540

1,470

1,350 

1,56O

1,460

*1,330

1,180

1,040

916

951

1,180

1,170

941

801

696

618

583

641

561

503

511

462

54T

782

29,022

967

5.20

5.80

May

961

JIS

811

875

724

628 

687

696

*574 

519

494

442

418

388

407

384

336

311

318

304

280

251

232

238

212

194

189

212

197

186

XTQ

13,386

432

2.32

2.68

June

465

662

863

<§56~

563

438 

*357

294

248 

232

235

217

186

162

148

136

127

118

*107

96

100

107

100

92

94

84

90

113

92

79.

7,431

248

1.33

1.49

July

71

77

59

55

72

147 

186

134

143 

178

134

93

104

189

226

*148

115

96

83

77

89

115

97

81

72

64

60

68

64

58

54

3,209

104

0.559

0.64

Aug.

50

*42

59

58

58 

36

34

32 

32

31

f31

33

30

27

27

24

24

21

ii

33

45

40

32

29

25

23

21

24

20

22

968

31.2

0.168

0.19

Sept.

26

55

48

49

43

»72 

555" 370

117 

75

63

54

49

47

43

59

71

84

93

70

68

63

59

84

*115

90

77

85

118

98

2,539

84.6

0.455

0.51

Calendar year 1955: Max 6,970 Mln 6.1 Mean 425 Cfsm 2.28 In. 31.03

Water iter year year 1955-56 1955-56; : Max Max 6,760 6,760____Mln Mln 19 19_____Mean Mean 454 434 Cfsm Cfsm 2.33 2.33 In. In. 31.74_________ 31.74

Peak discharge (base, 1.200 efsl.--Oct. 16 (1O:15 p.m.) 8,280 cfs (11.78 ft); Nov. 1 (2 a.m.) 1,600 

cfs (4.91 ft); Nov. 6 (3 a.m.) 1,830 cfs (5.29 ft); Nov. 12 (11 a.m.) 1,350 cfs (4.47 ft); Nov. 17 

(5 p.m.) 1,430 cfs (4.62 ft); Apr. 6 (7 a.m.) 1,770 cfs (5.20 ft); Apr. 18 (1:30 a.m.) 1,250 cfs 

(4.48 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note. No gage-height record July 25 to Aug. 11, Aug. 13, 14; discharge estimated on basis of 

recorded range In stage, weather records, and records for Wapplnger Creek near Wapplngers Falls.
120 HUDSON RIVER BASIN

Croton River at New Croton Dam, near Croton-on-Hudson, N. Y. 

(Formerly published as Croton River at New Croton Dam near Croton)

Location.--Lat 41°13'30", long 73°51'35", on left bank 1,000 ft downstream from New Croton 

Dam and if miles northeast of Croton-on-Hudson, Westchester County.

Drainage area. 378 sq mi.

Records available. July 1933 to September 1938 and October 1939 to June 1940 (fragmentary), June 1941 to September 1956. Prior to October 1955, published as "near Croton."

Gage. Water-stage recorder and concrete control with trapezoidal-notch weir. Altitude of 

gage is 50 ft (from topographic map).

Extremes. Maximum discharge during year, 45,400 cfs Oct. 16 (gage height, 18.44 ft, from 

floodmarks), from rating curve extended above 9,700 cfs on basis of slope-area determination of peak flow; minimum dally, 6.8 cfs July 4.

1933-38, 1939-40, 1941-56: Maximum discharge, that of Oct. 16, 1955; minimum, 

0.77 cfs Nov. 30, 1936, Oct. 20, 21, 1950; minimum gage height, 0.275 ft Jan. 15, 1950; 

minimum daily discharge, 0.77 cfs Oct. 20, 1950.

Remarks. Records good except those for periods of doubtful or no gage-height record, 

which are fair. Entire flow, except for periods of spilling, diverted from New Croton 

Reservoir for municipal supply of city of New York.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

12.3

12.3

12.3

12.3

12.0

13.3

14.4 

15.8

16.2

17.0

17.9

19.7

25.2

63

3,270

1135,000

ispoo

*9,970

6,950

4,800

"3,450

2,740

2,330

*1,950

1,630

»1,370 

1,180

»1,050

953

1 750 

3,*320

97,976.7

3,161

_

-

Nov.

2,510

1,910

1,450

3,050

4.070

3,700

3,200 

2,640

2,240

1,910

1,630

1,410

1,250

1,950

2,140

2,250

2,540

2,140

1,830

1,600

1,440

1,300

1,180

1,050

941

*832 

728

636

543

393

54,463

1,815

_

-

Dec.

407

529

600

657

657

651

576 

490

446

415

390

364

277

198

170

165

177

189

200

200

189

*50

34

29

26

24 

22

21

20.5

*20 

19^5

8,211.0

264.9

_

-

Jan.

19

19

18.5

18.5

ii

181

309 

257

225

226

*300

453

494

494

433

564

661

*393

226

182

150

135

125

114

108

102 

96

9Z

88

100 

90

6,691.0

215.8

_

-

Feb.

100

TIo

213

282

267

297

656

791

638

525

494

603

615

*521

457

430

367

579

922

844

702

554

428

341

450

791 

700

689

585

14,951

515.6

_

-

Mar.

464

407

155

453

453

453

615 

936

1.150

1,040

904

*819

684

796

953

939

831

639

723

658

502

473

520

689

621

548 

600

657

662

694 

722

21,035

678.5

_

-

Apr.

750

*853

1,140

1,260

1,370

1,43O

1,570 

2,080

1,960

2.100

2,040

1,730

1,470

1,280

1,190

1,510

1,530

1,29O

1,120

966

821

742

854

768

673

663 

794

882

1,220

1,560

37,616

1,254

_

-

May

1,330

1,080

1,260

1,130

889

922

ffl

1,050

985

918

821

773

702

693

503

398

372

420

426

372

324

327

*354

258

208 

219

237

197

174 

172

20,594

664.3

-

June

189

308

681 535

528

*471

394 

318

201

100

40

23

15

*10.8

9.6

9.2

9.0

8.8

8.6

8.4

8.2

10.0

*9.4

8.8

8.4

8.2 

12.0

11.6

*9.0

7_»_8

4,064.8

135.5

_

-

July

7.4

7.2

7.0

6.8

9.4

20

16 

13

24

17

12.0

9.6

8.0

12.5

11.0

lo.o

9.4

9.0

8.6

8.4

17

16.5

15

*13.5

13

12.0 

17.5

16

15 

14.5

14

390.3

12.59

_

-

Aug.

13.5

*±£

135

708

966

954

942 

936

*918

906

906

900

894

889

883

877

»1,080

1.520

1,310

1,290

1,270

 1,260

1,240

1,220

1,200

1,180 

1,160

1,140

1,120

1,090 

1,060

29,783.5

960.8

_

-

Sept.

1.050

1,000

979

948

918

889

854 

811

763

717

663

616

*562

488

374

318

291

259

237

218

214

211

207

207

*205

202

'50"0~ 199

200 

199

14,979

499.3

-

Calendar year 1955: Max 33,000 Mln 1.82 Mean 720.3 Cfsm - In. -

Water year 1955-56: Max 33,000 Mln 6.8 Mean 849.1 Cfsm - In. -

* Discharge measurement made on this day.

Note.--No gage-height record Oct. 13-17, 19, 20, 22, 23, 29, 30, Nov. 1-3, 5, 6, 8, 11-13, 20-26, 

Apr. 19-28, May 5, 6, 12, 13, 19, 20, 29, 30; discharge estimated from reconstructed gage-height 

graph based on weather- records and records for adjacent days. Doubtful gage-height record Dec. 15, 

16, Dec. 22 to Jan. 6, Jan. 21 to Feb. 2, May 31, June 10 to Aug. 3; discharge computed on basis of 

discharge measurements and weather records.
HUDSON RIVER BASIN 121

Saw Mill River at Yonkers, N. Y.

Location. Lat 40°56'20", long 73 0 53'05", on left bank in Yonkers, Westchester County, 

Just upstream from Old Croton aqueduct, near intersection of Nepperhan Avenue and 

Center Street, 1.2 miles upstream from mouth.

Drainage area. 25.6 sq mi.

Records available. November 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 90.99 ft above mean 

sea level, datum of 1929.

Average discharge. 12 years (1944-56), 28.87 cfs.

Extremes. Maximum discharge during year, 890 cfs Oct. 16 (gage height, 5.34 ft); minimum, 

0.90 cfs Sept. 23 (gage height, 0.60 ft, backwater from debris); minimum daily, 1.26 

cfs Sept. 30.

1943-56: Maximum discharge, that of Oct. 16, 1955; minimum, 0.05 cfs Dec. 27, 1946 

(gage height, 0.374 ft); minimum daily, 0.2 cfs Jan. 1, 1944, Sept. 5, Oct. 19, 1945.

Remarks. Records excellent except those for periods of backwater from debris, doubtful 

gage-height record, or those below 2 cfs, which are good. Flow affected by diversions 

by city of Yonkers, village of Tarrytown, and several industries for water supply and 

industrial purposes. Diurnal fluctuations caused by water supply and industrial 

operations.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

22.3

16.9 

15.3

14.7

10.4

41.9

77 

47.0

39.8

27.8

23.0

21.7

21.0

d48.0

d353

779

 620

318

»246

159

128

1O6

92

86

85

74

66

60

56

194

 t-rO

OOO

4,186.8

135.1

+1.99

Nov.

147

111 

ICO

232

291

165

135

130

103

94

147

105

85

119

97

137

153

100

*91

91

82

78

68

70

58

45.9

39.8

38.7

33.1

30.4

3,176.9

105.9

+5.16

Dec.

27.7

26.2 

23.9

26.2

28.6

23.9

20. 1 

18.9

20.0

17.6

17.6

20.9

15.1

14.5

15.1

12.5

10.6

10.6

10.6

8.34

6.88

11.5

20.1

2O. 9

22.4

21.6

15.2

4.77

*4.22

5.67

5.33

5O5.51

16.31

+12 . 66

Jan.

4.18

1.91

T754

3.94

4.86

4.86

4.29 

3.0O

34.2

60

*38.5

81

62

38.7

24.1

18.2

16.8

11.1

8.54

7.72

7.22

5.78

6.23

5.67

5.42

5.32

3.83

3.45

4.18

36.0

36.1

551.00

17.77

+10.69

Feb.

20.1

67

29.5

23.1

49.2

ifi

41.8

24.7

*3O.9

63

45.9

28.8

25.4

24.7

20.1

83

97

61

45.9

29.7

26.9

22.4

63

74

46.9

62

53

1,419.0

48.93

+7.04

Mar.

38.3

32.2 

37.3

41.4

31.3

28.6

38.6 

89

81

50

33.1

35.8

34.0

82

1O4

64

48.3

43.8

4O.8

42.2

42.8

45.9

57

81

51

*55

78

70

70

94

72

1,712.4

55.24

+11.41

Apr.

61

58 

81

62

57

50

65 

118

125

141

108

81

71

*66

69

120

92

60

56

49.2

46.9

42.8

42.8

41.8

36.7

42.8

42.8

36.7

33.1

1*5

2,101.6

7O.05

+11.70

May

83

66 

86

62

57

47.8

125 

67

53

51

37.7

36.7

34.0

31.3

44.7

36.9

25.4

25.4

23.9

25.4

22.4

19.5

18.2

*18.8

16.4

13.4

27.0

32.4

13.9

JJ^J

13 9

1,226.7

39.57

+9.94

June

20.5

60 

86

43.1

31.7

27.9

20.5 

13.5

6.7O

7.12

9.86

7.68

7.40

5.05

4.56

4.22

3.18

1784

5.05

7.12

8.43

10.3

*9.42

6.72

5.12

4.80

31.5

34.1

14.8

12.1

515.27

17.18

+8.87

July

10.3

10.3 

14.2

10.3

32.9

39.1

19.8 

15.7

66

"38.2

17.7

14.8

*16.O

26.3

17.1

14.2

13.7

12.1

11.2

11.6

31.1

17.7

13.1

11.2

10.3

10.3

42.3

17.8

11.2

9. 86

8 . 98

595.34

19.20

+1.46

Aug.

9.86

10.3 

9.86

9.42

6.96

12.1

9.91 

6.90

*7.49

4.75

4.33

2.90

3^2

3.0

4.55

*2.7

2.32

1740"

4.05

14.6

7.06

3.34

5.72

3.30

2.32

2.70

13.1

12.0

4.7

4.0

193.29

6.24

+5.51

Sept.

3.2

2.26 

2.75

2.34

*2.75

40.1

ft!7.07

7.07

6.88

6.70

4.03

6.22

7.77

23.4

12.4

8.7

4.15

7.4

3.7

2.75

3.4

4.25

3.0

2.95

4.85

5.2

3.3

1. 26

244.45

8.15

+5.39

Calendar year 1955: Max 779 Mln 1.12 Mean 41.55 t +7.78

Water year 1955-56: Max 779 Mln 1.26 Mean 44.89 t +7.65

* Discharge measurement made on this day.

t Indicated net adjustment, In cubic feet per second, for diversion and return flow In water supply 

and Industrial operations upstream. Records furnished by city of Yonkers, village of Tarrytown, and 

Stauffer Chemical Co.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

rise In stage when Intake opened and weather records.

Mote. Backwater from debris Jan. 1O, 11, May 23, 24, Aug. 13-17, Aug. 29 to Sept. 5, Sept. 16-30.
122 HACKENSACK RIVER BASIN

Hackensack River at Rivervale, N. J.

Location. Lat 40°59 I 55" J long 73°59'27", on right bank at Leslie Avenue, Rivervale, 

Bergen County, l| miles upstream from Pascack Brook, 4.6 miles upstream from Oradell 

Dam, and 27.2 miles upstream from mouth.

Drainage area. 58.0 sq mi.

Records available.--October 1941 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 22.51 ft above mean 

sea level, datum of 1929.

Average discharge. 15 years, 99.9 cfs (unadjusted).

Extremes. Maximum discharge during year, 1,450 cfs Oct. 17 (gage height, 6.03 ft); minimum, 12 cfs Jan. 8, result of freezeup; minimum daily, 13 cfs Aug. 17.

1941-56: Maximum discharge, that of Oct. 17, 1955; minimum, 5.5 cfs Aug. 30, 

Sept. 2, 1953 (gage height, 1.35 ft).

Remarks. Records excellent. Plow regulated by DePorest Lake (see p. 125). Diversion at 

West Nyack, N. Y., for municipal water supply (see p. 126).

Cooperation. Gage-height record collected in cooperation with Hackensack Water Co.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

1.5

1.6 

1.8 

2.0 

2.2

2.6 

3.0 

4.0 

6.0

199

372

804

1,440

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

52

48

47

39

3J>

91

213

171

171

148

128

103

82

98

417

1,280

1.440

1,280

919 

590

397

274

22O

190

174

157

143

133

116

168 

346

9,671

312

_

-

Nov.

302

 292

27O

283

351

346

311

292

262

227

258

279

246

254

258

254

330

279

246 

234

220

210

193

177

165

148

138

130

121

110

7,186

240

.

-

Dec.

97

91

89

89

93

91

87

82

76

74

69

68

6O

58

59

50

52

52

48 

40

45

40

38

38

40

44

41

39

36

35 

32

1,853

59.8

_

-

Jan.

34

30

31

32

34

37

37

29

42

90

103

157

162

TZ5

ISO

121

108

74

74 

65

59

57

55

45

46

42

37

33

35

51 

73

2,063

66.5

_

-

Feb.

58

74

121

85

103

101

"162 242

116

99

97

143

126

99

89

87

78

126

202 

128

89

58

50

40

63

106

80

82

76

2,980

103

_

-

Mar.

59

55

57

59

55

52

60

108

123

80

65

60

56

100

168

104

65

68

I

65

76

99

130

96

93

121

123

101

114 

106

2,627

84.7

_

-

Apr.

84

70

73

73

70

59

65

138

180

210

180

165

143

133

118

187

177

116

86 

65

56

52

50

52

47

54

66

57

51

153

3,030

101

-

-

May

154

86

121

143

162

151

140

227

163

93

66

55

52

47

55

48

42

39

40 

43

40

36

34

36

32

30

37

52

42

35 

32

2,333

75.3

_

-

June

31

58

187

T26

70

50

43

36

33

31

33

33

29

24

20

25

34

23

20

19

21

25

23

20

20

17

*37

55

28

24

1,195

39.8

_

-

July

21

20

26

22

52

84

55

33

75

90

39

29

30

63

47

34

29

22

20 

20

45

55

34

26

23

19

26

25

20

18

12

1,119

36.1

-

-

Aug.

16

15

15

14

14

17

31

23

19

17

15

15

15

15

15

14

11

14

20 

15

25

24

18

17

15

15

15

14

14

14 

17

520

16.8

-

-

Sept.

18

17

20

17

19

22

95

37

26

2O

19

17

17

15

If

40

34

27

20 

17

17

16

16

17

17

15

15

18

17

17

678

22.6

-

-

Calendar year 1955: Max 1,440 Min 7.3 Mean 120 Cfam - In. -

Water year 1955-56: Max 1,440 Min 13 Mean 96.3 Cfsm - In. -

Peak discharge (base. 500 cfs).--Oct. 17 (2 to 3 p.m.) 1,450 cfs (6.03 ft). 

* Discharge measurement made on this day.
HACKENSACK RIVER BASIN 123

Pascack Brook at Westwood, N. J.

Location.~Lat 40°59'33", long 74°01'19", on right bank 75 ft upstream from Harrington 

Avenue in Westwood, Bergen County, 500 ft downstream from Musquapsink Creek, and 

2.3 miles upstream from mouth.

Drainage area. 29.6 sq mi.

Records available. September 1934 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 28.62 ft above mean 

sea level, datura of 1929.

Average discharge. 22 years, 52.9 cfs (unadjusted).

Extremes.--Maximum discharge during year, 1,330 cfs Oct. 16 (gage height, 6.45 ft); mininoun daily, 14 cfs Sept. 27, 30.

1934-56: Maximum discharge, 1,610 cfs July 23, 1945 (gage height, 6.76 ft); minimum, 

5.8 cfs Oct. 21, 1949; minimum daily, 6.1 cfs Oct. 21-25, Nov. 10, 11, 1949.

Remarks.--Records excellent except those above 50 cfs, which are fair. Flow regulated by 

Woodcliff Lake 3 miles above station (see p. 125). Water diverted for municipal supply 

by Spring Valley Water Works and Supply Co., by pumpage from well fields in headwater 

area of Pascack Brook in vicinity of Spring Valley, N. Y., and by Park Ridge Water Department by pumping from wells above Woodcliff Lake probably reduces flow past this 

station.

Cooperation. Cage-height record collected in cooperation with Hackensack Water Co. 

Revisions (water years). WSP 851: 1937.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, In cubic 

feet per second)

Oct. 16 to Feb. 6 Feb. 7 to Sept. 30

1.6 

1.8 

2.1 

2.5 

3.0 

4.1

22

39

77

119

193

455

1.6 

1.8 

2.0 

2.5

3.0 

4.0 

5.0 

6.0

142

340

640

1.05O

1.4

1.5 

1.7 

2.0 

2.5 

3.1

9.9

15

30

55

105

190

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

39

34

30

28

Z8

96

232

146

101

66

49

42

38

112

441

1,020

366

204

142

110

94

86

73

70

84

79

68

60

58

160 

288

4,444

143

-

-

Nov.

145

*96

83

*152

149

106

89

95

85

77

150

133

94

117

118

148

191

T2Z

98

100

93

93

85

81

74

70

66

64

61

§1

3,092

103

-

-

Dec.

56

54

54

56

59

*56

51

50

49

47

45

43

41

41

41

41

39

38

38

36

32

32

31

31

33

34

33

30

28 

TaCO

1,275

41.1

-

-

Jan.

28

28

27

27

28

28

28

27

34

52

57

85

85

62

48

42

41

35

34

33

31

29

29

28

28

28

26

25

25

38

47

1,163

37.5

-

-

Feb.

38

47

63

53

49

61

171

TT7

85

69

64

90

77

59

54

*53

50

109

158

98

72

55

50

45

59

77

65

72

66

2,126

73.3

-

-

Mar.

55

53

53

53

50

49

55

95

112

76

60

56

53

98

*14_0

101

81

68

70

64

64

69

86

111

91

84

103

106

102

109

106

2,473

79.8

-

-

Apr.

92

82

87

85

83

71

79

157

162

182

127

98

83

78

82

158

139

97

81

71

66

60

60

*60

60

67

66

62

58 ^'a !T

J.O (

2,840

94.7

-

-

May

122

84

101

96

82

71

175

TTT

68

65

62

59

57

56

60

55

49

50

49

50

46

50

*39

36

36

35

4T

49

43

39

37

1,973

63.6

-

-

June

37

60

150 ~9T

59

48

39

34

31

31

33

31

28

28

26

31

41

39

32

28

28

26

24

24

24

28

49

49

46

41

1,237

41.2

-

-

July

38

35

35

34

48

45

41

39

56

51

43

39

40

53

43

37

34

32

32

31

43

43

37

32

30

30

40

35

31

29

2_8

1,184

38.2

-

-

Aug.

28

28

27

26

27

33

34

30

28

26

26

26

27

27

26

25

25

28

28

27

35

59

27

26

25

242"4

25

26

24

27

844

27.2

-

-

Sept.

25

30

28

24

24

37

41

34

28

27

26

26

25

25

29

36

33

30

28

29

28

28

28

26

17

15

*14

Tf

15

14

787

26.2

-

-

Calendar year 1955: Max 1,020 Mln 12 Mean 63.0 Cfsm - In. -

Water year 1955-56: Max 1,020 Mln 14 Mean 64. O Cfsm - In. -

Peak discharge (base. 525 cfs).--Oct. 16 (9 a.m.) 1,330 cfs (6.45 ft); Oct. 31 (6 p.m.) 350 cfs 

(4.04 ft) . 

* Discharge measurement made on this day.
124 HACKENSACK RIVER BASIN

Hackensack River at New Milford, N. J.

Location.--Lat 40°56'52", long 74°01'34", on right bank upstream from 2 masonry dams and 

2~lift gates at pumping plant of Hackensack Water Co., New Milford, Bergen County, 

4 miles downstream from Pascack Brook and 21.8 miles upstream from mouth.

Drainage area. 113 sq mi.

Records available. October 1921 to September 1956.

Gage. Water-stage recorder above south dam. Datum of gage is 6.25 ft above mean sea level, 

datum of 1929. Prior to Nov. 23, 1923, staff gage and Nov. 23, 1923, to Sept. 25, 1934, 

water-stage recorder, at same site at datum 0.05 ft lower.

Average discharge.--35 years, 127 cfs (unadjusted).

Extremes.--Maximum discharge during year, 3,460 cfs Oct. 16 (gage height, 5.89 ft); no 

flow for many days.

1921-56: Maximum discharge, 3,660 cfs Mar. 31, 1951 (gage height, 6.14 ft); no flow 

for many days each year.

Remarks. Records good. Records given herein represent flow over waste weirs only. Plow 

regulated by Oradell Reservoir 1 mile above station, Woodcliff Lake 9 miles above 

station, and DePorest Lake (see p. 125). Water diverted at New Milford, N. J., and at 

West Nyack, N. Y., for municipal supply (see p. 126).

Cooperation. Gage-height record collected in cooperation with Hackensack Water Co. 

Revisions (water years). WSP 601: Drainage area. WSP 711: 1927-28(M).

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0

1.1

1.2

1.3

1.4

8.4

22

43

73

1.7 

2.0 

3.0 

5.1

200

359

1,090

2,820

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

177

168

99

17

O

69

213

234

199

99

73

73

28

671

1,020

2.780

2,430

1,490

1,120

570

466

360

232

2O9

215

172

177

150

107 

570

687

14,875

480

-

-

Nov.

413

276

368

548

535

425

377

330

3O2

252

407

395

286

401

383

434

582

389

359

289

309

281

249

229

215

182

154

163

115

QQ

9,736

325

-

-

Dec.

128

107

80

1O3

150

88

84

88

57

8O

54

46

66

46

36

39

38

17

.1

O

10

19

19

22

15

14

21

15

3.2 

3.2

7.0

1,455.5

47.0

-

-

Jan.

5.6

4.0

.1

0

0

0

O

0

33

107

195

215

344 12"8

162

103

103

58

7.7

23

27

17

26

27

16

0

O

O

O

15

1,704.4

55. 0

-

-

Feb.

53

60

234

88

69

159

576

234

166

99

91

210

219

115

111

88

88

397

437

194

88

43

24

29

108

2OO

92

138

130

4,540

157

-

"

Mar.

57

87

75

73

69

38

81

306

265

80

79

95

51

359

357

215

127

61

186

140

43

97

191

301

139

191

249

229

210 

215

205

4,851

156

-

Apr.

163

115

156

120

111

103

196

441

39T

371

428

213

76

205

252

378

239

168

111

156

115

82

.2

0

O

O

O

35

85 

256

4,967.2

166

-

-

May

194

166

268

231

183

213

570

254

182

112

99

38

83

48

65

47

28

36

42

42

0

.3

.1

0

O

O

14

56

17 

10

7.0

3,005.4

96.9

-

-

June

16

303

74

7.9

.4

.1

0

.4

.2

0

.2

.1

0

0

.5

0

0

.1

.1

O

0

0

0

0

0

1.1

0 

O

1,085.1

36.2

-

-

July

0

0

0

o

O

o

o

o

.2

38

0

0

32

63

0

O

15

5.2

O

0

80

179

 4.4

O

O

0

o

0

0 

0

0

416.8

13.4

-

~

Aug.

0

0

-

-

Sept.

0

0

0

o

0

W~ 1.6

o

o

.1

0

.2

0

o

0

o

o

o

o

o

0

o

0

o

o

o

.3

0

0

o

2.2

0.07

-

-

Calendar year 1955: Max 2,780 Mln O Mean 144 Cfsm - In. -

Water year 1955-56: Max 2,780 Mln O Mean 127 Cfsm - In. -
HACKENSACK RIVER BASIN 125

Reservoirs in Hackensack River basin

DeForest Lake. Lat 41°06', long 73°57', at dam on Hackensack River 0.85 mile north of 

West Nyack, Rockland County, N. Y. Drainage area, 26.6 sq mi. Records available, 

February to September 1956. Bristol recording water-level gage. Datum of gage is at 

mean sea level, datum of 1929.

Reservoir is formed by earth-fill dam with sheet piling cutoff and concrete spillway; dam completed and storage began in February 1956. Total capacity at crest of dam 

(elevation, 80.00 ft), 4,068,000,000 gal. Crest of dam topped by two 50-foot Bascule 

gates 5 ft high. Flow regulated by 12-inch Howell-Bunger valve at elevation 59.25 ft 

and 24-inch Howell-Bunger valve at elevation 61.25 ft. Reservoir used for storage and 

water released by Hackensack Water Co. for public water supply. Elevation record and 

capacity table furnished by Hackensack Water Co.

Woodellff Lake.--Lat 41°0l', long 74°03', at dam on Pascack Brook three-quarters of a mile 

north of Hillsdale, Bergen County, N. J. Drainage area, 19.4 sq mi. Records available, 

October 1953 to September 1956 in reports of Geological Survey; September 1934 to September 1953 in files of Trenton district office, Geological Survey. Water-stage recorder. 

Datum of gage is at mean sea level, datum of 1929. Gage readings to 0.1 ft above or 

below spillway level and capacity table furnished by Hackensack Water Co.

Reservoir is formed by earth-fill dam, completed about 1905. Capacity at spillway 

level (elevation, 94.33 ft), 835,000,000 gal. Flow is regulated by one 36-inch gate in 

center *of dam. Water is released for diversion at New Milford by Hackensack Water Co. 

for municipal supply.

Oradell Reservoir. Lat 40°57', long 74°02', at dam on Hackensack River at Oradell, Bergen 

County, N. J. Drainage area, 113 sq mi. Records available, October 1953 to September 

1956 in reports of Geological Survey; October 1921 to September 1953 in files of 

Trenton district office, Geological Survey. Water-stage recorder. Datum of gage is at 

mean sea level, datum of 1929.

Reservoir is formed by hollow concrete dam, completed in 1922. Capacity at spillway 

level (elevation, 22.66 ft), 2,850,000,000 gal. Flow regulated by seven sluice gates 

(7 by 9 ft). Water is released for diversion by Hackensack Water Co. 1 mile downstream 

from dam for municipal supply. Elevation record and capacity table furnished by Hackensack Water Co.

Month-end elevation and contents, water year October 1955 to September 1956

Date

Oct. 31........... .......

Dee. 31. .................

Calendar year 1955. ....

Feb. 29...... ............

Sept. 30. .................

Water year 1955-56 .....

Date

Nov. 30... ...............

Calendar year 1955.....

Apr. 30..... .............

July 31 ..................

Sept. 30. .................

Water year 1955-56.....

r

Elevation 

(feet)

_

_

-

-

68.10

83.45

83.65

-

Ora

21.64

-

23.01

22.35

17.20

-

eForest Lak

Contents 

(million 

gallons )

_

_

-

-

944

2,330

4,498

5,152

5,214

-

dell Reserv

2,634

-

2,784

1,793

-

e*

Change in 

contents 

(equivalent 

in cfs)

_

_

-

-

+50.4

+69.2

-2.3

+3.2

-

oirt

_

+1.0

0

+5.2

-16.0

-4.5

VI

Elevation 

(feet)

94.43

94.93

94.63

94.43

-

94.53

94.63

94.73

91.03

91.63

-

oodellff La

Contents 

(million 

gallons)

840

867

851

840

-

845

851

856

845

694

-

iket

Change in 

contents 

(equivalent 

In cfs)

_

+1.3

-.8

-.5

-.1

.2

.3

.2

- .1

' - .0

.1

- .3

+ .7

-.6

 Elevation at 12 p.m.

t Elevation at 8 a.m. on first day of following month.
126 HACKENSACK RIVER BASIN 

Diversions from Hackensack River basin

City of Nyack, N. Y., diverts water from Hackensack River at West Nyack, N. Y., for 

municipal supply. Records furnished by Board of Water Commissioners of Nyack, N. Y.

Hackensack Water Co. diverts water from Hackensack River about 50 ft above gaging station on Hackensack River at Mew Milford, N. J. for municipal supply. Records furnished by 

Hackensack Water Co.

Diversions, in cubic feet per second,

Month

December ............................

Calendar year 1955 ................

July................................

Hater year 1955-56 ................

water year October

west Nyack, N. Y.

1.76

1.85

1.71

1.77

1.76

1.93

2.36

2.24

2.27

2.OO

1.91

1955 to September 1956

Hackensack Water Co .

78.7

78.4

81.8

81.8

86.2

81.1

79.5

81.8

92.9

79.9

92.4

85.8

PASSAIC RIVER BASIN 

Passaic River near Millington, N. J.

Location.--Lat 40°40'48", long 74°31'40", on right bank 200 ft downstream from Davis

Bridge, in Somerset County, 1 mile upstream from Millington, Morris County, and Ij miles 

downstream from Black Brook.

Drainage area. 55.4 sq mi.

Records available. November 1903 to July 1906 (published as "at Millington"), November 

1921 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 215.60 ft above mean 

sea level (New Jersey Geological Survey benchmark). Nov. 25, 1903, -to July 15, 1906, 

chain gage at bridge three-quarters of a mile downstream at different datum. Nov. 10, 

1921, to Sept. 1, 1923, staff gage at site 200 ft downstream at present datum. Oct. 31, 

1923, to July 3, 1925, staff gage and concrete control at present site and datum.

Average discharge. 35 years (1921-56), 87.9 cfs.

Extremes.--Maximum discharge during year. 704 cfs Oct. 16 (gage height, 7.14 ft); minimum, 

5.1 cfs Aug. 20 (gage height, 3.99 ft).

1903-6, 1921-56: Maximum discharge, 2,_00 cfs Mar. 8, 1904 (gage height, 7.50 ft, 

site and datum then in use); minimum, 0.9 cfs on several days in August 1932.

Remarks. Records excellent except those below 50 cfs, which are good.

Revisions.--WSF 781: Drainage area.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

Jl

12

13

14

15

16

17

18

19

20

2-1

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

26

22

18

15

14

25

53

67

80

65

52

40

34

128

545

671

'554" 672

442

344

264

2OO

147

108

*87

74

64

57

53

114

229

5,274

170

3.07

3.54

Nov.

215

194

174

147

124

99

83

*80

77

72

106

151

115

108

108

159

244

22T

203

185

163

144

126

113

101

88

80

74

64

53

3,872

129

2.33

2.60

Dec.

51

48

48

53

54

51

45

42

*39

38

33

32

29

27

28

25

23

23

23

19

15

15

17

18

23

23

18

15

16

17

13_

921

29.7

0.536

0.62

Jan.

16

13

15

16

18

18

18

15

16

29

37

53

69

58

51

44

40

33

28

28

26

23

23

19

16

16

13

13

14

36

64

878

28.3

0.511

0.59

Feb.

48

49

119

101

90

121

291

298

268

224

174

166

149

119

111

97

78

159

320

313

271

196

138

102

106

189

187

2OO

194

4,878

168

3.03

3.27

Mar.

161

142

134

124

113

*106

110

232

294

266

224

180

151

2OO

510

274

208

191

83

97

140

170

189

236

210

220

248

276

281

288

276

6,134

198

3.57

4.12

Apr.

244

212

185

163

149

124

187

368

457

425

352

276

208

172

153

176

187

161

136

119

108

94

82

75

67.

69

80

74

69

78

5,250

175

3.16

3.52

May

77

67

95

97

85

72

151

176

140

110

90

75

66

56

48

43

38

36

37

37

34

30

28

28

25

23

FT

36

28

24

24

1,903

61.4

1.11

1.28

June

28

29

49

45

34

28

23

20

19

20

26

20

17

15

13

13

13

12

*11

9.9

12

18

17

21

19

14

24

39

37

28

673.9

22.5

0.406

0.45

July

20

17

16

18

38

50

43

31

46

87

54

33

26

34

27

22

23

18

*14

15

39

61

58

27

20

16

75

~82 158

45

27

1,196

58.6

0.697

0.80

Aug.

19

16

15

10

9.9

16

56

31

23

16

12

9.5

8.2

9.5

8.6

6.7

6.0

5.4

5.4

»5.1

23

30

19

15

11

8.6

8.2

7.8

9.0

8.2

11

417.1

13.5

0.244

0.28

Sept.

19

15

51

30

14

24

163

183

138

106

64

42

29

23

19

34

34

29

22

*21

20

16

15

18

18

14

12

16

16

14

1,219

40.6

0.733

0.82

Calendar year 1955: Max 884 Min 1.2 Mean 88.2 Cfsra 1.59 In. 21. 6O

Water year 1955-56: Max 672 Min 5.1 Mean 89.1 Cfsra 1.61 In. 21.89

Peak discharge (base, 5oo cfs).--Oct. 16 (6 p.m.) 704 cfs (7.14 ft). 

" Discharge measurement made on this day.
PASSAIC RIVER BASIN 127

Passaic River near Chatham, N. J.

Location. Lat 40°43'31", long 74°23'23", on left bank 150 ft downstream from Stanley 

Avenue Bridge in Chatham, Morris County, and 3 miles upstream from Canoe Brook.

Drainage area. 100 sq mi.

Records available. February 1903 to December 1911, December 1937 to September 1956.

Gage. Water-stage recorder. Concrete control since Sept. 19, 1938. Datum of gage is 

T93.51 ft above mean sea level, datum of 1929. Prior to 1912, chain gage at bridge 

150 ft upstream at different datum.

Average discharge . 18 years (1938-56), 167 cfs.

Extremes.--Maximum discharge during year, 1,150 cfs Oct. 16 (gage height, 5.95 ft); minimum, .9.8 cfs Jan. 18, result of freezeup; minimum daily, 11 cfs Aug. 20.

1903-11, 1937-56: Maximum discharge observed, about 3,000 cfs Jan. 9, 1905 (gage 

height, 8.3 ft, datum then in use); minimum, 2 cfs on many days in May and June 1903, 

August and October 1905, September and October 1906, and Sept. 11, 1944.

Remarks.--Records excellent except those for periods of ice effect, which are good.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

3.0 

3.2 

3.4 

3.7

7.7

18

4.0 

4.5 

5.0 

6.0

140

314

570

1,180

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

45

37

33

27

24

43

68

104

118

115

89

70

55

231

780

1.140 

1,100

1,030

932

798

643

511

387

239

160

128

111

98

87

260

387

9,850

318

3.18

3.66

Nov.

406

368

314

262

218

181

148

138

128

120

210

246

228

204

200

345

437

*452

2zT

372

318

281

243

207

181

157

138

128

115

90

7,256

242

2.42

2.70

Dec.

90

87

80

S3

90

90

81

73

68

65

b60

b55

b50

45

44

39

40

36

34

32

30

29

32

32

33

33

33

27

23

24

24

1,562

50.4

0.504

0.58

Jan.

21

2T

21

23

26

28

28

26

24

35

50

92

122

TTO

100

81 

73

54

55

50

44

40

39

33

31

27

24

22

22

53

100

1,485

47.9

0.479

0.55

Feb.

118

128

214

235

187

240

489

540

535

479

392

327

285

228

190

184 

157

366

546

600

552

452

310

b!90

204

310

340

363

377

9,538

329

3.29

3.55

Mar.

323

254

235

228

204

184

200

361

540

552

484

392

298

397

506

540 

473

392

218

210

246

273

340

416

416

411

468

500

523

540

523

11,647

376

3.76

4.33

Apr.

484

421

349

285

250

210

355

582

770

818

756

630

511

387

281

314 

336

294

239

197

174

157

140

130

115

120

143

132

118

125

9,823

327

3.27

3.65

May

135

122

174

187

165

140

285

'S69 340

204

165

140

120

107

*92

80 

71

68

66

63

60

56

51

46

43

39

35

62

60

46

43

3,544

114

1.14

1.32

June

57

76

98

102

73

55

45

37

32

31

35

37

30

24

22

19 

18

19

18

_15

18

26

28

48

38

25

100

174

T3o

76

1,516

50.5

0.505

0.56

July

44

31

26

24

75

122

102

70

83

89

102

66

48

50

56

42 

35

33

25

11

92

128

94

57

40

43

130

148

T¥8

90

55

2,169

70.0

0.700

0.81

Aug.

37

29

24

21

20

44

60

57

44

33

24

18

16

16

16

16 

13

12

12

11

53

54

45

30

23

18

15

15

25

19

838

27.0

0.270

0.31

Sept.

18

3T

33

65

45

28

108

228

loo

148

113

78

56

42

34

43 

52

50

40

36

33

31

25

29

29

28

22

22

23

23

1,713

57.1

0.571

0.64

Calendar year 1955: Max 1,310 Min 3.5 Mean 169 Cfsm 1.69 In. 22.89

Water year 1955-56: Max 1,140 Min 11 Mean 167 Cfsm 1.67 In. 22.66

Peak discharge (base. 800 efs) . Oct. 16 (l to 8 a.m.) 1,150 cfs (5.95 ft); Apr. 8 (8 p.m.)854cfs 

(5.44 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
128 PASSAIC RIVER BASIN

Rockaway River above reservoir, at Boonton, N. J.

Location. Lat 40°54'06", long 74°24'40", on right bank at Morris Avenue, Boonton, 

Morris County, 1.8 miles upstream from Boonton Reservoir Dam.

Drainage area. 116 sq mi.

Records available.--October 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 364.47 ft above mean 

sea level (New Jersey Geological Survey benchmark).

Average discharge. 18 years (1938-56), 227 cfs (unadjusted).

Extremes. Maximum discharge during year, 1,940 cfs Oct. 16 (gage height, 5.15 ft); minimum, 14 cfs Jan. 19, result of freezeup; minimum daily, 39 cfs Aug. 4.

1937-56: Maximum discharge, 3,250 cfs June 2, 1952 (gage height, 6.62 ft), from 

rating curve extended above 2,400 cfs; minimum, 1.5 cfs Mar. 1, 1938 (gage height, 

1.26 ft).

Remarks. Records good. Flow regulated by Splitrock Reservoir 14-| miles above station 

(see p. 146). Town of Boonton diverts water for municipal supply from Taylortown 

Reservoir on Stony Brook (capacity, 75,000,000 gal) and by pumping from wells in 

vicinity of Boonton. The mean diversion during the water year from Taylortown 

Reservoir was 1.3 cfs. Rockaway Valley trunk sewer bypasses station (see Remarks 

paragraph for station at Rockaway River below reservoir).

Cooperation. Gage-height record collected .in cooperation with Jersey City.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

1.9

2.0 

2.2 

2.5

3.0 

3.5 

4.0 

5.1

375

670

1,010

1,890

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

136

114

97

89

!§

170

320

302

302

231

181

148

136

269

1,570

1.850

1,850

1,550

1,150

863

658

520

424

386

355

316

284

276

253

479 

842

16,199

523

.

-

Nov.

628

520

436

502

478

414

S97

392

355

325

442

454

380

375

370

436

598

478

414

402

380

370

345

316

307

294

280

266

248

207

11,809

394

.

-

Dec.

207

199

195

203

207

192

181

174

170

167

154

151

145

139

160

145

142

130

120

100

95

97

100

107

125

117

93

89

"577 78

OU

80

4,342

140

_

-

Jan.

78

69

78

82

86

82

78

64

84

130

154

199

207

167

136

122

114

97

94

97

89

88

89

76

78

78

78

77

78

114 

136

3,199

103

.

-

Feb.

122" 107

199

151

130

155

478

355

258

215

207

302

271

227

211

215

181

313

514

*392"

330

248

250

234

280

345

289

307

294

7,580

261

_

-

Mar.

231

219

235

223

207

199

231

330

370

280

248

244

244

340

478

365

307

316

189

320

350

298

312

335

298

294

335

355

350

365 

392

9,260

299

-

Apr.

397

424

402

414

408

380

520

764

794

856

788

684

610

538

502

610

652

532

454

397

365

340

320

298

271

284

298

280

262

355

14,199

473

-

-

May

335

325

386

350

289

244

490

430

325

294

284

258

240

223

207

199

184

181

174

164

157

145

151

167

151

133

136

154

136

117 

104

7,133

230

-

-

June

136

188

266

231

178

148

127

112

104

109

133

100

97

82

75

75

78

73

66

*.62_

78

78

73

78

86

71

89

107

93

77

3,270

109

-

-

July

68

62

73

71

104

154

142

120

136

248

525

294

203

184

164

154

151

125

102

93

164

188

136

114

102

104

153

151

117

93 

78

4,373

141

_

-

Aug.

69

58

61

39

44

50

102

80

69

60

54

49

48

54

50

45

44

44

46

44

93

91

75

62

52

46

44

40

60

50 

202

1,925

62.1

.

-

Sept.

207

130

164

125

100

200

75Z

33T

164

117

97

89

82

75

73

117

114

109

91

89

80

77

89

102

86

73

71

78

75

68

4,025

134

_

-

Calendar year 1955;- Max 2,020 Mln 15 Mean 229 Cfsm - In. -

Water year 1955-56: Max 1,850- Mln 39 Mean 239 Cfsm - In. -

Peak discharge (base. 950 cfs). Oct. 16 (8 to 12 p.m.) 1,940 cfs (5.15 ft). 

* Discharge measurement made on this day.
PASSAIC RIVER BASIN

Rockaway River below reservoir, at Boonton, N. J.

Location. Lat 40°53'47", long 74°23'36", on right bank 2,000 ft downstream from dam of 

Boonton Reservoir, Boonton, Morris County.

Drainage area. 119 sq mi.

Records available. March 1903 to February 1904, January 1906 to September 1956. Published 

as "near Boonton" 1903-4 and as "at Boonton" 1906-37.

Gage. Water-stage recorder. Concrete control since Nov. 5, 1936. Datum of gage is 195£8 

ft above mean sea level (New Jersey Geological Survey benchmark). Mar. 15, 1903, to 

Feb. 2, 1904, staff gage at site 2,000 ft downstream at different datum. Jan. 1, 1906, 

to Mar. 3, 1918, reference-point gage on Boonton Dam 2,000 ft upstream at datum 109.57 

ft higher than present datum.

Average discharge. 43 years (1913-56), 134 cfs (unadjusted for storage and diversions but 

includes sewage effluent since October 1929).

Extremes.--Maximum discharge during year, 1,810 cfs Oct. 16, 17 (gage height, 5.94 ft); 

minimum daily, 0.3 cfs Jan. 8.

1903-4, 1906-56: Maximum daily discharge, 7,560 cfs Oct. 10, 1903; practically no 

flow for many days.

Remarks. Records excellent except those below 10 cfs, which are good, and those for period 

of no gage-height record, which are fair. Figures of discharge represent flow over control only. Flow regulated by Boonton Reservoir 2,000 ft above station and by Splitrock 

Reservoir 16| miles above station (see p. 146). Sewage effluent from Rockaway Valley 

trunk sewer is discharged to Rockaway River 600 ft below station. Most of the water 

for sewage effluent is diverted by water departments or companies by pumping from wells 

in vicinity of Wharton, Dover, Denville, and Boonton (the average sewage effluent during 

the water year was 7.9 cfs). Water diverted from Boonton Reservoir for municipal supply 

for Jersey City (see p. 148).

Cooperation. Gage-height records for station and record of sewage-disposal plant effluent 

furnished by Jersey City.

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

1.4

1.5 

1.7 

1.9

0.3

.8

2.0

4.0

6.9

16

31

2.2

2.6 

3.0 

3.5 

4.0 

5.0 

6.0

67

149

269

464

712

1,240

1,850

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

39

28

11

6.6

1.5

9.6

139

196

205

157

102

66

45

126

1,030

1,700

1.750

1,450

1,080

810

596

442

357

322

269

239

205

188

165

286

616

12,636.7

408

-

-

Nov.

537

421

364

368

372

345

322

308

308

238

292

360

322

297

286

322

447

354

345

330

297

272

262

239

220

208

193

179

152

120

9,110

304

-

-

Dec.

100

100

98

106

111

94

85

80

75

75

63

54

49

45

57

54

37

49

35

15

a2.0

al.O

al.O

20 .5

28

12

2.2

.8

.7

.6

1,450.8

46.8

-

-

Jan.

0.6

.4

.4

.4

.5

.5

.5

.3

75

.7

.7

1.2

22

64

5?

32

22

10

2.3

1.6

.8

.7

.7

.6

.6

.5

.5

.4

.4

1.4

.7

219.9

7.09

-

"

Feb.

0.6

TTT

2.5

33

45

54

260

311

202

146

124

185

193

152

129

124

106

182

368

*33T

266

182

165

146

134

255

252

230

217

4,799.8

166

-

-

Mar.

165

146

144

142

122

109

126

211

276

217

176

160

154

208

349

330

243

246

193

152

262

224

214

239

233

211

230

259

266

230

294

6,581

212

-

-

Apr.

304

319

308

315

315

290

353

566

632

65S

637

542

464

405

384

425

486

405

360

322

290

259

236

220

185

185

205

199

182

227

10,678

356

-

-

May

256

239

290

294

224

165

330

364

276

214

196

179

165

139

120

113

87

80

89

69

66

60

45

54

54

51

42

46

42

24

4,414

142

-

-

June

27

67

144

152

T02

61

39

19

8.0

14

23

16

4.5

.7

.6

.6

.6

.5

.5

.5

*.5

.5

.4

75

.5

.5

1.0

.6

.5

.5

656. 0

22.9

-

-

July

0.4

.4

.5

.5

1.3

.7

.6

.5

1.0

.7

.5

.8

39

81

73

64

53

31

12

1.4

22

78

59

28

13

5.3

25

51

35

11

1.6

691.2

22.3

-

-

Aug.

0.6

.5

.5

.4

74

.8

.6

.4

.4

.4

.4

.4

.4

.5

.9

.5

.4

.4

.4

.4

1.3

.6

.5

.4

.4

.4

.4

.4

.6

.5

2.8

18.0

0.58

-

"

Sept.

0.8

1.6

.8

.7

.6

14

3.2

16

67

40

14

2.2

1.0

1.3

1.1

.9

1.0

1.0

1.6

.8

.8

.8

.6

.7

.5

.4

75

.6

.6

.7

175.6

5.85

-

-

Calendar year 1955: Max 1,750 Min 0.4 Mean 127 Cfsm - In. -

Water year 1955-56: Max 1,750 Min 0.3 Mean 141 Cfsm - In. -

Peak discharge (base, 800 cfs). Oct. 16 (8 a.m.) to Oct. 17 (4 a.m.) 1,810 cfs (5.94 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby stations.
130 PASSAIC RIVER BASIN

Whippany River at Morristown, N. J.

Location.--Lat 40°48'2l", long 74°27'22", on left bank at Morristown sewage-disposal plant, 

three-quarters of a mile downstream from Morristown, Morris County, and 9 miles upstream from mouth.

Drainage area. 29.4 sq mi.

Records available. August 1921 to September 1956.

Gage. Water-stage recorder. Concrete control since July 1, 1936. Datum of gage is 

260.01 ft above mean sea level (New Jersey Geological Survey benchmark). Prior to 

July 16, 1930, staff gage at same site and datum.

Average discharge. 35 years, 50.0 cfs.

Extremes. Maximum discharge during year, 900 cfs Oct. 15 (gage height, 5.10 ft), from 

rating curve extended above 430 cfs as explained below; minimum, 14 cfs Aug. 30 (gage 

height, 1.78 ft).

1921-56: Maximum discharge, 1,500 cfs on Aug. 26, 1928, Mar. 12, 1936, Mar. 15, 

1940, from rating curve extended above 430 cfs on basis of slope-area determination 

and computation of flow over dam at gage height 6.29 ft; maximum gage height, 7.30 ft 

Aug. 26, 1928; minimum discharge, 2.8 cfs Aug. 27, 1932 (gage height, 0.73 ft).

Remarks.--Records excellent. Plow occasionally regulated by operation of gates in Pocahontas Dam, 2.5 miles above station.

Revisions (water years).--WSP 781: 1928(M), drainage area.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

1.8 

2.0 

2.3 61

2.6 

3.0 

4.2

112

210

550

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

30

2*

23

22

22

58

53

62

43

31

28

25

24

244

527

256

172

110

86

76

72 

62

57

57

54

52

48

47

47

202

166

2,780

89.7

3.05

3.52

Nov.

76

64

62

86

66

57

57

64

54

54

112

73

60

68

64

133

116

72

68

72

68 

68

62

62

57

54

52

52

47

IS

2,046

68.2

2.32

2.59

Dec.

44

43

46

47

48

43

41

41

40

38

36

35

34

34

36

31

31

31

32

29

27 

30

30

30

32

32

28

25

26

28

25

1,073

34.6

1.18

1.36

Jan.

25

23

26

27

29

27

26

24

*27

37

36

57

51

38

33

31

30

28

26

28

27 

24

25

23

11.

23

22

21

23

59

16

943

30.4

1.03

1.19

Feb.

"56 27

73

42

46

82

213

70

49

46

49

74

52

43

43

43

40

143

129

74

60

47

45

42

87

95

57

78

62

1,967

67.8

2.31

2.49

Mar.

52

53

54

54

1?

53

57

133

90

64

58

60

56

131 Tie

78

74

68

61

76

70

76

86

99

76

83

108

106

102

112

112

2,475

79.8

2.71

3.13

Apr.

97

99

91

91

84

78

149

226

188

182

144

125

110

106

110

204

138

104

95

91

86 

79

74

70

.66

88

73

67

66

102

3,283

109

3.71

4.15

May

67

64

93

70

66

61

~91 164

70

68

62

60

60

54

49

49

46

49

47

46

42 

40

43

41

36

34

44

42

37

36

38

1,769

57.1

1.94

2.24

June

43

47

61

42

36

33

30

29

28

33

35

29

28

27

25

25

25

24

23 *22

30 

29

25

30

27

22

33

26

22

22

911

30.4

1.03

1.15

July

22

21

25

23

45

33

28

24

45

34

25

22

27

29

21

24

23

19

18

19

58 

30

22

20

20

19

77

30

23

18

il

861

27.8

0.946

1.09

Aug.

17

18

16

15

17

36

38

22

18

18

17

16

19

25

18

17

16

16

16

16

fi

19

18

16

15

15

16

22

18

46

647

20.9

0.711

0.82

Sept.

30

82

116

36

23

145

191

46

28

23

22

21

20

20

27

48

30

26

21

28

21 

19

19

25

19

18

18

21

18

18

1,179

39.3

1.34

1.49

Calendar year 1955: Max 811 Min 8.8 Mean 51.3 Cfsm 1.74 In. 23.67

Water year 1955-56: Max 527 Min 15 Mean 54.5 Cfsm 1.85 In. 25.22

Peak discharge (base. 450 cfs).--Oct. 15 (4 a.m.) 900 cfs (5.10 ft); Sept. 6 (6 p.m.) 688 cfs 

(4.57 ft).

* Discharge measurement made on this day.
PASSAIC RIVER BASIN 131

Pequannock River at Macopin Intake dam, N. J.

Location.--Lat 41°01'00", long 74°23'47", at Macopin intake dam of Newark waterworks, 

3 miles upstream from Butler, Morris County.

Drainage area. 63.7 sq mi.

Records available.--January 1892 to September 1956.

Gage. Recorder above dam. Datum of gage is 583.55 ft above mean sea level (New Jersey 

Seological Survey benchmark).

Average discharge.--52 years (1904-56), 54.1 cfs (unadjusted).

Extremes. Maximum discharge during year, 2,160 cfs Oct. 16 (gage height, 1.95 ft); no flow 

over dam on many days.

1892-1956: Maximum discharge recorded, about 6,100 cfs over intake dam Oct. 10, 1903 

(gage height, 3.85 ft); no flow over dam during several months of most years.

Remarks. Extremes and figures of daily discharge represent flow over intake dam only.

Water diverted above intake dam for municipal supply of Newark (see p. 148). Plow regulated by Oak Ridge, Canistear, Clinton, and Echo Lake Reservoirs (see p. 146).

Cooperation.--Records, in millions of gallons, furnished by Department of Public Affairs, 

Division of Water, Newark.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0

0

0

0

0

12

63

63

58

36

17

2.8

0

53

973

1.840 

1,600

1,020

659

438

303

209

160

134

109

105

93

78

83 

355

472

8,935.8

288

-

-

Nov.

447

294

246

254

246

201

173

160

153

153

187

187

160

153

160

224

355

303

246

224

201

167

134

128

123

105

94

73

54 

4.9

5,654

188

-

-

Dec.

36

28

28

45

36

32

17

11

17

17

14

21

28

28

11

0 

3.2

0

0

0

5.6

5.6

8.2

11

14

8.2

8.2

5.6

5.6 

1.5

1.5

447.2

14.4

-

-

Jan.

3.4

1.5

1.5

2.5

3.2

3.2

2.2

.8

0

0

0

1.1

0

0

0

0 

0

1.5

3.2

5.6

3.2

3.2

3.2

3.2

3.2

1.1

1.1

1.1

3.2 

3 2

ill

56.5

1.82

-

-

Feb.

0.8

1.1

5.6

.8

0

1.9

14

11

0

0

0

11

.5

0

0

0 

0

1.5

24

11

0

0

2.3

1.1

5.6

8.0

3.2

0

0

103.4

3.57

-

-

Mar.

0

0

1.1

1.1

0

0

0

45

99

99

88

78

73

111

128

99 

83

63

63

73

68

78

83

93

83

73

73

73

83 

93

99

2,003.2

64.6

-

-

Apr.

105

116

141

187

238

320

447

507

466

466

497

464

391

355

329

364 

364

303

246

223

201

173

167

153

134

123

105

99

134 

329

8,147

272

-

-

May

456

391

361

270

201

223

231

246

194

141

111

99

88

83

78

58 

49

32

17

24

17

5.6

17

17

2.8

-50

0

0 

0

0

3,412.4

110

-

-

June

0

12

24

49

24

3.2

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

112.2

3.74

-

-

July

0

4.6

5.6

0

0

0

0

0

92

78

17

5.6

2.8

0

14

54 

58

54

28

45

83

88

78

68

54

54

63

73

73 

40

0

1,132.6

36.5

-

-

Aug.

0

0

-

-

Sept.

0

0

0

0

o

o

17

17

5.6

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

39.6

1.32

-

-

Calendar year 1955: Max 1,840 Mln 0 Mean 63.5 Cfsm - In. -

Water year 1955-56: Max 1.84O Mln 0 Mean 82.1 Cfsm - In. -
132 PASSAIC RIVER BASIN

Wanaque River at Awosting, N. J.

Location.--Lat 41°09'3l", long 74°20'00", on right bank 700 ft downstream from dam at outlet of Greenwood Lake at Awosting, Passaic County.

Drainage area. 27.1 sq mi.

Records available.--May 1919 to September 1956.

Gage.--Water-stage recorder. Concrete control since Oct. 13, 1938. Datum of gage is 

B"01.32 ft above mean sea level (New Jersey Geological Survey Benchmark). Prior to 

Apr. 1, 1926, staff gage and Apr. 1, 1926, to Oct. 31, 1938, water-stage recorder, at 

site 100 ft upstream at same datum.

Average discharge. 37 years, 52.8 cfs (unadjusted).

Extremes.--Maximum discharge during year, 1,300 cfs Oct. 16 (gage height, 5.85 ft), from 

rating curve extended above 300 cfs on basis of laboratory rating; minimum, 3.8 cfs 

Aug. 20, 21, 28-31 (gage height, 1.56 ft).

1919-56: Maximum discharge, that of Oct. 16, 1955; no flow at times when gates at 

Greenwood Lake were closed and no water passed over spillway.

Remarks.--Records excellent except those for period of shifting control, which are good. 

Plow regulated by Greenwood Lake (see p. 146).

Cooperation.--Water-stage-recorder graph furnished by North Jersey District Water Supply 

Commission.

Revisions. WSP 781: Drainage area.

Rating table, water year 1955-56, except period of shifting control (gage 

height, In feet, and discharge, in cubic feet per second)

1.5

1.6

1.7 

1.9

2.1

2.6

4.8

8.0

17

31

2.4 

2.8 

3.2 

4.0 

5.8

62

128

222

470

1,270

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

22

18

15

12

12

39

94

117

115

99

86

73

63

116

654

1,250

998

636

425

298

217

165

126

102

90

75

65

56

51

140

283

6,512

210

-

-

Nov.

289

212

177

189

174

154

136

130

118

*106

126

126

118

118

115

128

186

174

149

143

118

104

92

86

76

72

63

60

50

41

3,830

128

-

-

Dec.

39

33

32

33

34

34

31

30

28

28

25

24

22

21

20

20

17

17

17

17

14

15

17

16

17

17

15

14

13

13

12

685

22.1

-

-

Jan.

12

11

12

12

13

12

12

11

16

22

25

40

51

51

47

42

42

42

32

31

28

26

25

23

22

20

18

17

16

21

27

779

25.1

-

-

Feb.

25

29

37

36

37

39

79

89

89

86

86

94

95

89

86

81

73

97

120

118

107

94

81

69

70

75

70

76

69

2,196

75.7

-

-

Mar.

60

55

55

52

50

49

56

70

84

82

82

78

73

82

90

90

95

90

106

94

78

69

62

70

65

61

62

63

68

75

76

2,242

72.3

-

-

Apr.

79

S7

100

117

138

170

196

268

244

236

244

239

222

196

174

191

182

147

132

113

92

84

82

76

66

68

68

63

78

274

4,426

148

-

-

May

286

239

236

201

158

141

167

158

126

120

102

94

89

79

75

66

55

51

48

48

41

36

42

39

31

26

30

37

30

25

27

2,903

93.6

-

-

June

34

41

62

73

68

61

52

46

39

35

36

31

28

25

22

19

18

15

8.7

6.0

5.4

6.6

6.0

7.2

7.2

5.4

6.6

*7.6

5.7

4.5

781.7

26.1

-

-

July

4.3

4.3

4.8

4.6

12

18

19

18

104

117

115

106

79

111

120

100

87

78

65

51

57

51

46

38

32

29

28

26

18

12

12

1,567.0

50.5

-

-

Aug.

10

9.1

7.2

5.7

4.8

7.7

12

11

9.5

8.0

7.2

6.0

4.8

5.7

5.1

4.6

4.6

4.3

4.6

5.8

5.4

6.3

4.8

4.8

4.3

4.1

4.1

4.1

5.8

5.8

4.1

185.3

5.98

-

-

Sept.

17~ 4.3

50

25

21

50

60

50

57

26

19

18

15

18

21

54

58

39

30

30

23

19

19

24

21

17

14

14

11

9.5

733.8

24.5

-

"

Calendar year 1955: Max 1,25O Min 4.1 Mean 70.6 Cfsm - In.

Water year 1955-56: Max 1,250 Min 3.8 Mean 73.3 Cfsm - In.

Peak discharge (base. 2OO efs).--Oct. 16 (11 a.m. to 12 m.) 1,300 cfs (5.85 ft); Oct. 51 (l p.m.) 

289 cfs (5.45 ft); Apr. 8 (2 p.m.) 289 cfs (5.45 ft); Apr. 50 (4 p.m.) 319 cfs (s.53 ft). 

* Discharge measurement made on this day. 

Note.--Shifting-control method used July 9-19.
PASSAIC RIVER BASIN 133

Wanaque River at Monks, N. J.

Location. Lat 41°07'14", long 74°17'4l", on left bank just upstream from Wanaque Reservolr, at Monks, Passaic County.

Drainage area.--40.4 sq mi.

Records available. January 1935 to September 1956.

Gage. Water-stage recorder and concrete dam. Datum of gage is 303.17 ft above mean sea 

Tevel (New Jersey Geological Survey benchmark).

Average discharge. 21 years, 84.2 cfs (unadjusted).

Extremes. Maximum discharge during year, 3,010 cfs Oct. 15 (gage height, 3.78 ft, from 

high-water mark in gage house), from rating curve extended above 1,000 cfs by logarithmic plotting; minimum daily, 6.0 cfs Aug. 29, 30.

1935-56: Maximum discharge, 3,640 cfs Aug. 19, 1955 (gage height, 4.15 ft, from 

high-water mark in gage house), from rating curve extended above 1,000 cfs by logarithmic plotting; no flow for part of day in some years just after the waste gate was 

closed and water was below intake to ports.

Remarks. Records excellent except those for periods of ice effect or doubtful or no gageheight record, which are good. Figures of discharge include flow over spillway, through 

ports in dam, and down fish ladder. Flpw regulated by Greenwood Lake (see p. 146).

Cooperation. Water-stage-recorder graph furnished by North Jersey District Water Supply 

Commission.

Revisions (water years). WSP 851: 1938.

Rating table, water year 1955-56, except periods of Ice effect ( 

height, In feet, and discharge, In cubic feet per second)

0.15 

.2 

.25 

.3 

.4 

.5

0.7 

1.0 

1.5 

2.0 

3.0 

3.4

90

190

440

800

1,850

2,400

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

34

30

27

22

118

198

198

182

149

122

104

90

350

al,600

32,300

1,350

890

612

404

300

230

179

149

136

110

96

85

78

455

486

11,105

358

-

-

Nov.

380

300

a 250

a285

257

214

190

186

163

145

*206

182

167

182

175

315

336

285

252

226

190

171

149

142

126

119

107

102

85

5,962

199

-

-

Dec.

72

68

65

63

63

61

b53

48

48

46

b45

b44

b41

b41

34

34

b34

31

30

b26

b25

34

b36

31

31

31

b28

b24

b22

23

b23

1,255

40.5

-

-

Jan.

21

b20

19

19

20

21

19

20

b24

39

44

75

80

72

65

61

59

b57

b50

44

b42

b40

37

b38

b35

a 33

30

26

26

34

46

1,218

39.3

-

-

Feb.

b45

41

57

a57

a57

a60

145

139

136

132

129

156

142

129

122

116

104

177

198

182

156

b!30

116

blOO

111

bl!5

107

113

99

3,371

116

-

-

Mar.

b90

85

88

85

80

80

90

119

132

119

119

116

107

126

139

129

131

b!30

136

129

bllO

102

102

113

b!04

102

107

allO

a!15

119

129

3,443

111

-

-

Apr.

139

149

175

202

244

257

290

352

342

364

374

358

315

275

248

295

262

218

194

163

142

129

126

116

102

110

107

96

115

 392

6,651

222

-

-

May

398

315

305

280

244

206

222

226

190

175

152

136

126

110

113

93

80

72

70

75

63

57

57

61

54

44

50

63

52

44

44

4,177

135

-

"

June

54

68

132

122

102

90

78

70

63

57

61

54

46

43

37

33

31

27

20

15

14

15

13

11

12

11

13

14

 11

9.5

1,326.3

44.2

-

"

July

8.1

7.5

7.5

7.5

27

34

30

27

147

171

171

149

139

179

202

163

136

102

82

68

78

70

61

52

44

41

39

39

31

20

21

2,353.6

75.9

-

~

Aug.

19

17

14

12

11

12

23

18

17

13

12

11

9.3

11

8.7

8.7

8.1

8.1

8.7

7.5

11

11

9.3

7.5

7.0

6.5

6.5

6.5

6JD

6.0

8.1

334.5

10.8

-

"

Sept.

8.1

20

52

37

28

50

99

72

52

37

28

26

22

d26

d30

d50

d55

d60

a45

a45

a34

a28

a28

a35

a30

26

21

21

19

17

1,101.1

36,7

-

"

Calendar year 1955: Max 2,900 Mln 5.1 Mean 116 Cfsm - In.

Water year 1955-56: Max 2,300 Mln 6.0 Mean 116 Cfsm - In.

Peak discharge (base, 400 efs).--0et. 15 (about 12 p.m.) 3,010 cfs (3.78 ft); Oct. 30 (5 p.m.) 

908 cfs (2.12 ft); Nov. 16 (3 p.m.) 528 cfs (1.64 ft); Apr. 10 (10 p.m.) 416 cfs (1.46 ft); Apr. 30 

(10 a.m.) to May 1 (6 a.m.) 416 cfs (1.46 ft).

* Discharge measurement made on this day.

a No gage-height reoordj discharge estimated on basis of records for station at Awostlng.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge estimated on basis of records for station at Awostlng.

505690 O - 59 - 10
134 PASSAIC RIVER BASIN

Rlngwood Creek near Wanaque, N. J.

Location. Lat 41°07'36", long 74°15'52", on right bank 500 ft upstream from Wanaque Reservolr and 6-5 miles north of Wanaque, Passalc County.

Drainage area. 19.1 sq ml.

Records available. December 1934 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage Is 302.67 ft above mean 

sea level (New Jersey Geological Survey benchmark).

Average discharge. 21 years (1935-56), 33.7 cfs .

Extremes. Maximum discharge during year, about 1,000 cfs Oct. 15 or 16; minimum dally, 

2.8 cfs Aug. 30.

1934-56: Maximum discharge, 1,150 cfs Mar. 30, 1951 (gage height, 3.74 ft, from 

floodmark), from rating curve extended above 240 cfs on basis of laboratory rating and 

approximate discharge at gage height 3.18 ft; no flow for part of day in most years 

Just after the waste gate was closed and water was below intake to ports.

Remarks. Records excellent except those for periods of no gage-height record, which are 

good. Figures of discharge include flow over control and through ports. Flow slightly 

regulated by Ringwood Lake.

Cooperation. Water-stage-recorder graph furnished by North Jersey District Water Supply 

Commission.

Rating table, water year 1955-56 (gage height, in feet,

and discharge, in cubic feet per second) 

(Stage-discharge relation affected by ice Dec. 20)

0.2 

.25 

.3 

.4 

.5 

.7

2.8 

3.8

35

1.0 

1.5 

2.0 

2.5 

3.2

82

200

340

510

760

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

13

10

9.4

8.0

7.6

55

84

62

48

38

35

28

24

157

a640

a750

a460

a290

a220

a 160

125

102

84

73

64

54

48

43

38

169

150

4,049.0

131

6.86

7.88

Nov.

104

82

78

90

84

75

69

71

62

56

88

71

64

73

69

131

132

TC4

92

86

77

69

61

56

51

47

43

39

36

33

2,193

73.1

3.83

4.27

Dec.

31

57

27

27

28

26

22

20

20

18

17

16

15

17

14

12

11

12

12

11

11

11

12

13

12

12

10

9.4

8.4

S74

8.9

499.1

16.1

0.843

0.97

Jan.

8.4

8.4

8.0

874

9.4

9.4

8.9

8.4

9.5

20

21

36

3?

22

20

18

17

14

14

14

13

13

13

11

11

10

9.9

9.9

9.4

16

17

440.0

14.2

0.743

0.86

Feb.

13

17

22

18

18

22

61

a45

43

43

44

54

47

42

42

40

36

67

69

6T

52

44

42

36

43

45

42

43

38

1,189

41.0

2.15

2.32

Mar.

34

34

36

35

33

32

4T

51

50

43

42

39

44

48

54

48

44

44

39

44

42

42

45

50

42

44

48

50

50

51

54

1,353

43.6

2.28

2.63

Apr.

56

59

71

75

82

92

98

118

118

130

135

120

109

98

96

120

107

92

82

75

68

61

*61

56

48

53

50

43

48

188

2,609

87.0

4.55

5.08

May

123

104

116

98

86

78

107

82

71

69

62

58

54

48

45

40

38

35

34

34

30

27

23

25

22

20

26

26

20

17

TT

1,635

52.7

2.76

3.18

June

18

28

58

43

34

30

26

23

20

20

22

18

17

14

13

11

11

10

9.9

10

7.6

8.4

8.4

7.6

7.6

6.4 ?7i

10

8.9

7.6

516.5

17.2

0.901

1.01

July

6.8

5.6

5.3

573

13

21

15

10

~rS 131

45

33

45

82

73

58

48

*39

33

30

37

34

28

23

20

17

18

18

15

12

10

1,009.0

32.5

1.70

1.96

Aug.

9.9

8.4

7.6

6.8

6.4

9.2

15

10

8.4

7.6

7.2

6.4

6.0

6.0

6.0

5.3

5.0

4.4

4.7

4.7

11

9.4

6.8

5.6

5.3

4.7

3.8

3.6

3.0

2.8

375

204.0

6.58

0.345

0.40

Sept.

IT" 5.6

17

12

9.9

25

40

26

20

a!5

a!3

all

10

9.9

12

25

23

21

17

16

14

13

12

»12

10

9.4

8.0

8.4

8.4

8.4

449.0

15.0

0.785

0.87

Calendar year 1955: Max 756 Min 1.8 Mean 43.1 cfsra 2.26 In. 30.61

Water year 1955-56: Max 750 Min 2.8 Mean 44.1 Cfsra 2.31 In. 31.43

Peak discharge (base, 225 efs). Oct. 15 or 16 (time unknown) about 1,000 cfs; Oct. 30 (3 p.m.) 

331 cfs (1.97 ft); Apr. 30 (2 a.m.) 240 cfs (1.65 ft); July 9 (ll a.m.) 298 cfs (1.86 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Wanaque River at Monks and 

West Brook near Wanaque.
PASSAIC RIVER BASIN 135

Cupsaw Brook near Wanaque, N. J.

Location.--Lat 41°06'32", long 74°15'16", on left bank just upstream from Wanaque Reservoir, 

5 miles north of Wanaque, Passaic County.

Drainage area. 4.38 sq mi.

Records available. December 1934 to September 1956.

Gage. Water-stage recorder and concrete control. Datura of gage is 304.52 ft above mean 

sea level (New Jersey Geological Survey benchmark).

Average discharge. 21 years (1935-56), 8.03 cfs.

Extremes.--Maximum discharge during year, 375 cfs Oct. 16 (gage height, 2.18 ft); minimum 

daily, 0.2 cfs for many days.

1934-56: Maximum discharge, 536 cfs Mar. 11, 1936 (gage height, 2.94 ft), from 

rating curve extended above 200 cfs; no flow for some days during most years.

Remarks. Records good except those for periods of no gage-height record and when waste 

gate was open, which are fair. Plow occasionally regulated by Cupsaw Lake.

Cooperation. Water-stage-recorder graph furnished by North Jersey District Water Supply 

Commission.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

21

21

20 

20

*19

22

21

20

20 

20

20

20 

12

3.6

79

"80 201

5£

41

34

34

32

32

32

32

32

31

17

a. 3

22

52

1,062.9

34.3

7.83

9.02

Nov.

52

51

31 

1.6

1.6

1.6

1.3

.8

.6 

77

1.6

1.2 

1.0

1.6

4.7

38

38

26

20

18

15

15

13

12

10

9.9

9.3

8.2

7.6

6.6

398.9

13.3

3.04

3.39

Dec.

6.6

6.1

6.1 

6.6

7.1

6.6

5.6

5.1

4.7 

4.7

4.3

3.9 

3.9

3.5

3.1

3.5

3.1

2.8

2.8

2.8

2.2

2.£

a2.5

a2.8

a2.8

2.8

2.8

2.5

TT!

1.9

119.2

3.85

0.879

1.01

Jan.

1.9

T75

l'.9 

1.9

a2.0

2.2

2.2

1.9

2.5 

6.1

7.1

if8.2

6.1

5.1

4.7

3.5

3.5

3.1

3.1

2.8

2.5

2.2

2.2

2.2

1.9

1.9

1.9

3 9

sie

123.0

3.97

0.906

1.04

Feb.

3.9

775

e!7

6.6

6.1

8.2

29

17

13 

11

11

16 

12

9.9

8.7

9.3

8.2

18

23

16

12

9.3

7.6

6.6

9.9

12

9.3

10

9.3

325.9

11.2

2.56

2.77

Mar.

7.1

771

8.7 

8.2

7.6

7.1

8.7

15

15 

11

9.3

8.7 

8.7

13

1Z

17

15

12

12

12

9.9

9.9

11

14

11

10

13

14

14

14

15

356.0

11.5

2.63

3.02

Apr.

16

18

19 

19

18

16

21

30

27 

34

31

24 

19

16

16

28

24

17

15

12

11

10

11

9.9

8.2

12

11

9.3

11

58

571.4

19.0

4.34

4.85

May

25

19

26 

20

18

15

30

19

14

14

12

11 

10

9.9

12

9.3

7.1

7.1

7.1

8.2

6.6

5.6

5.6

*5.1

3.9

3.5

575

7.1

4.7

3.9

3.9

349.2

11.3

2.58

2.97

June

5.6

8.5

s8.2

6.6

4.7

3.9

3.1 

3.1

3.9

3.1 

2.5

1.9

1.6

1.4

1.4

1.0

a. 3

a73

.5

1.2

1.0

.9

.5

a. 3

2.1

1.9

.7

a. 3

106.5

3.55

0.811

0.90

July

aO.3 a4a. 2 

a. 2

3.4

5.6

3.1

1.9

ii 

10

4.7

2.8 

3.1

6.6

3.9

2.2

1.6

.4

a. 3

a. 3

1.9

1.9

1.2

.6

.5

.4

1.8

1.6

.7

.4

a. 3

81.1

2.62

0.598

0.69

Aug.

aO.3

.4

a. 3 

a. 3

a-il

.4

.5

.5

a. 3 

a. 3

a. 2

a. 2 

a. 2

a. 2

a. 2

a. 2

a. 2

.3

a. 2

a. 2

.9

1.4

.9

.5

.3

a. 2

a. 2

.3

.3

a. 2

.8

11.6

0.37

0.084

0.10

Sept.

0.7

3.0

4.7 

el. 5

e.5

5.8

9.9

3.1

1.7 

.4

a. 3

a. 3 

a*!

.3

.9

3.9

3.1

2.2

1.2

1.4

.9

.6

.6

1.6

1.0

.9

1.1

.7

a. 3

a. 3

53.1

1.77

0.404

0.45

Calendar year 1955: Max 217 Mln O Mean 9.51 Cfsm £.17 In. 29.45

Water wauei year yesu 1955-56: a.JtJ*j-*jo: Max piax. 2ol f,\jj. Mln 1'ii.ii 0.2 v.c. Mean I'iedii 9.72 9* 1t, Cfsm \si 0111 £.22 c.*{.{. In. xii. 30.21 ^v.t-j.

Peak discharge (base. 70 efs).--0et. 16 (1 a.m.) 575 efs (2.16 ft); Apr. 30 (5 a.m.) 62 efs 

(0.88 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for Blue Mine 

Brook, West Brook, and Ringwood Creek near Wanaque.

e Waste gate open; discharge computed from graph of normal recession based on recorder graph for 

adjacent days.
136 PASSAIC RIVER BASIN

West Brook near Wanaque, N. J.

Location. Lat 41°04'16", long 74°18'45", on right bank just upstream from Wanaque Reservolr, Z\ miles northwest of Wanaque, Passalc County.

Drainage area. 11.8 sq ml.

Records available. January 1935 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 326.79 ft above mean 

sea level (New Jersey Geological Survey benchmark).

Average discharge. 21 years, 24.3 cfs.

Extremes.--Maximum discharge during year, 1,180 cfs Oct. 15 (gage height, 5.68 ft, from 

high-water mark in gage house), from rating curve extended above 630 cfs; minimum 

daily, 1.5 cfs Aug. 5, 17, 18, 26-30.

1935-56: Maximum discharge, 1,900 cfs Mar. 30, 1951 (gage height, 6.6 ft, from 

floodmapk), from rating curve extended above 630 cfs; no flow for part of day in most 

years just after waste gate was closed and water was below intake to ports.

Remarks. Records good except those for periods of ice effect or fragmentary gage-height 

record and when waste gate was open, which are fair. Records include flow over control 

and through ports. Plow slightly regulated by several lakes above station.

Cooperation.--Water-stage-recorder graph furnished by North Jersey District Water Supply 

Commission.

Rating table, water year 1955-56, except periods of Ice effect and when 

waste gate Has open (gage height, In feet, and discharge, In cubic 

feet per second)

0.05 

.1 

.2 

.4 

.7

1.5

3.0

7.3

20

50

1.0 

1.3 

1.6 

2.0 

3.4

86

134

211

293

582

Discharge, In cubic feet per second, water year October .1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sir

In.

Oct.

11

8.9

7.8

5.8

5.3

60

88

70

50

35

27

30

29

f!28

f510

f560

2TT

111

80

65

51

43

36

27

25

24

24

23

22

247

154

2,778.8

89.6

7.59

8.76

Nov.

79

60

62

86

58

47

42

42

*34

31

70

48

38

50

43

123

To?

68

56

50

44

41

37

35

31

27

25

24

20

19_

1,492

49.7

4.21

4.70

Dec.

19

T8

17

19

19

17

15

14

14

13

12

12

11

11

11

9.4

8.9

8.9

8.4

8.4

b8.4

bS.O

bS.O

9.4

9.4

8.9

7.8

7.3

6.3

5.8

5.5

350.6

11.3

0.958

1.10

Jan.

5.3

6.3

5.8

5.3

6.3

6.3

5.8

4.9

678

13

14

32

26

19

16

15

14

12

11

11

9.4

8.9

8.9

7.8

8.4

7.3

7.3

6.8

6.8

12

13

332.4

10.7

0.907

1.05

Feb.

9.4

20

15

14

16

67

49

41

36

36

51

39

32

31

29

25

59

66

51

40

33

27

24

34

37

29

32

26

979.4

33.8

2.86

3.09

Mar.

24

24

26

25

22

23

27

43

43

37

31

29

84

4?

44

b40

37

33

30

31

29

30

35

38

33

32

37

39

39

41

42

1,090

35.2

2.98

3.44

Apr.

46

50

53

62

68

65

75

85

84

100

97

79

67

53

54

80

65

50

42

38

34

31

32

30

26

33

30

25

2T

106

1,687

56.2

4.76

5.32

May

62

50

62

49

46

39

74

51

41

39

33

30

28

26

27

24

20

20

20

22

19

16

16

16

14

12

14

16

13

12

11

922

29.7

2.52

2.91

June

14

14

40

30

22

17

14

12

11

11

11

9.4

7.8

6.8

5.3

5.8

5.8

5.3

.9

.1

.5

.5

.1

3.8

3.4

3.0

678

5.3

3.8

3.4

293.8

9.79

0.830

0.93

July

2.7

2.1

274

2.4

9.0

12

7.8

5.3

SB- 50

IS

8.9

11

16

11

7.8

6.3

*4.9

4.5

4.1

9.4

8.9

6.8

5.3

4.5

4.1

4.5

4.5

3.8

3.4

2.7

264.1

8.52

0.722

0.83

Aug.

2.4

2.1

2.1

1.8

1.5

4.0

6^8

4.5

3.4

2.7

2.1

2.1

2.1

2.1

2.1

1.8

1.5

1.5

1.8

1.8

5.1

4.5

3.0

2.7

2.1

1.5

1.5

1.5

1.5

1.5

2.4

77.5

2.50

0.212

0.24

Sept.

2.4

14

11

4.9

3.8

24

26

12

7.3

4.9

4.1

8.2

12

11

12

21

16

13

8.4

7.3

6.8

e6.8

e6.3

e6.3

5.8

* .1

.1

.1

.1

.1

275.8

9.19

0.779

0.87

Calendar year 1955: Max 644 Mln 0.5 Mean 28.3 Cfsm 2.40 In. 32.49

Water year 1955-56: Max 560 Mln 1.5 Mean 28.8 Cfsm 2.44 In. 33.24

Peak discharge (base. 400 cfs). Oct. 15 (about 12 p.m.) 1,180 cfs (5.68 ft); Oct. 30 (2 p.m.) 

541 cfs (3.22 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

e waste gate open; discharge computed from graph of normal recession based on recorder graph for 

adjacent days.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
PASSAIC RIVER BASIN 137

Blue Mine Brook near Wanaque, N. J.

Location. Lat 41°03'04", long 74°19'10", on left bank just upstream from Wanaque Reservoir, 

If miles northwest of Wanaque, Passalc County.

Drainage area. 1.71 sq ml.

Records available. December 1934 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 319.94 ft above mean 

sea level (New Jersey Geological Survey benchmark).

Average discharge. 21 years (1935-56), 2.35 cfs.

Extremes. Maximum discharge during year, 115 cfs Oct. 14 (gage height, 1.21 ft); no flow 

Oct. 2, 4,5.

1934-56: Maximum discharge, 458 cfs Mar. 20, 1951 (gage height, 2.15 ft), from 

rating curve extended above 80 cfs; no flow for many days.

Remarks. Records good except those for periods of no gage-height record, which are fair.

Coo£eratlon.--Water-stage-recorder graph furnished by North Jersey District Water Supply 

Commission.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

0.2

ao

.8

ao

ao

6.7

8.6

5.3

3.4

2.2

1.8

1.4

1.2

31

39

48

18

8.9

6.0

4.0

3.4

2.6

2.2

2.0

1.8

1.6

1.4

1.4

1.4

37 

13

254.3

8.20

4.80

5.53

Nov.

6.4 

4.6

4.3

6.8

4.6

3.7

3.1

3.1

2.6

2.2

6.5

4.0

3.1

4.6

3.7

11

8.0

5.3

4.3

3.7

3.1

2.8

2.6

2.4

2.2

2.0

1.8

1.6

1.4

1.2

116.7

3.89

2.27

2.54

Dec.

1.2 

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.0

.8

.8

.7

.7

.6

.6

.6

.6

.6

.5

a. 2

a. 2

.3

.6

.6

.7

.5

a. 2

a. 3

a. 3 

a. 2

21.8

0.70

0.409

0.47

Jan.

aO.2 

a. 2

a. 2

a. 3

 a. 3

a. 3

a. 2

a. 2

.5

1.1

1.1

fTo" 2.7

1.2

1.1

1.1

1.1

.8

.8

.8

.8

.8

.7

.7

.6

.6

.5

.4

.4

1.2 

1.1

24.0

0.77

0.450

0.52

Feb.

0.8 

1.3

1.8

1.2

1.2

a2.O

aS.O

4.6

3.7

3.1

3.4

4.6

3.7

2.8

2-. 6

2.4

2.2

7.1

6.4

4.9

3.7

2.6

2.4

2.0

3.6

2.8

2.4

2.6

2.2

92.1

3.18

1.86

2.00

Mar.

2.O 

2.2

2.2

2.0

1.8

1.8

2.2

3.9

3.7

2.6

2.6

2.4

2.2

4.3

4.3

3.7

3.1

2.6

2.6

2.4

2.2

2.6

3.1

3.4

2.8

3.1

3.7

3.7

3.7

3.7

4.0

90.6

2.92

1.71

1.97

Apr.

4.3 

4.3

4.3

5.3

6.0

5.3

6.4

7.2

7.5

8.9

6.8

4.9

4.3

4.7

8.0

6.8

4.3

3.7

3.1

2.6

2.4

2.4

2.2

2.5

*2.2

2.0

2.0

8.1

144.1

4.80

2.81

3.13

May

4.3

3.7

4.9

4.3

4.0

3.7

7.2

4.6

3.7

3.4

2.8

2.4

2.2

2.2

2.4

2.O

1.6

1.6

1.6

1.6

1.4

1.1

1.4

.6

.7

1.1

1.1

.8

.8 

.7

74.2

2.39

1.40

1.61

June

1.0 

1.6

Id.

2.2

1.4

1.2

1.1

.8

.6

.7

.8

.6

.4

a. 2

a. 2

.5

.4

a. 2

a. 2

a. 2

a. 2

a. 2

a.l

aTT

a.l

a.l

1.4

.6

a. 2

a. 2

20.9

0.70

O.4O9

0.45

July

arr

a!l

a.l

1.0

1.4

.7

a.l

ziz

1.0

.3

.7

2.6

1.2

.8

.5

a.l

a.l

a.l

1.1

.8

.4

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

19.7

O.64

O.374

0.43

Aug.

a"!r

a.l

a.l

a.l

.3

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

.2

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

3.8

O.12

O.O70

0.08

Sept.

aO.l 

. 6

.4

a.l

a.l

ft!

.2

a.l

a.l

a.l

a.l

a.l

a.l

.2

1.0

.5

.3

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

9.1

0.30

0.175

0.20

Calendar year 1955: Max 64 Mln o Mean 2.41 Cfsm 1.41 In. 19.13

Water year 1955-56: Max 48 Mln o Mean 2.38 Cfsm 1.39 In. 18.93

Peak discharge (base. 60 cfs). Oct. 14 (8 p.m.) 115 cfs (1.21 ft); Oct. 15 (12 p.m.) 94 cfs 

(1.11 ft); Oct. 30 (2 p.m.) 90 cfs (1.09 ft).

* Discharge measurement made on this day.

a No gage-height record) discharge estimated on basis of records for West Brook and Cupsaw 

Brook near Wanaque.
138 PASSAIC RIVER BASIN

Wanaque River at Wanaque, N. J.

Location. Lat 41°02'33", long 74°17'36", on left bank just downstream from Wanaque Res-

 ervoir in Wanaque, Passaic County, 50 ft upstream from highway bridge.

Drainage area. 90.4 sq mi (considered as 94 sq mi Oct. 1, 1928, to Sept. 30, 1934, when 

flow diverted from Post Brook was included in all records).

Records available.--December 1903 to December 1905 (gage heights only), September 1912 to 

April 1915, May 1919 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 210.00 ft above mean

 sea level (New Jersey Geological Survey benchmark). Dec. 16, 1903, to Dec. 31, 1905, 

chain gage on highway bridge at site 50 ft downstream at different datum. Sept. 15, 

1912 to Apr 1 1922, staff gage at site 200 ft downstream from present concrete eontrol'at different datum. Apr. 1, 1922, to Mar. 14, 1931, water-stage recorder at site 

400 ft downstream from present concrete control at present datum.

Average discharge.--37 years (1919-56), 87.1 cfs (unadjusted).

Extremes. Maximum discharge during year, 1,740 cfs Oct. 17 (gage height, 5.96 ft); mini-

 mum daily, 16.0 cfs Dec. 25, 26, June 22, 23.

1912-15, 1919-56: Maximum discharge, 8,470 cfs Mar. 31, 1951 (gage height, 9.12 ft), 

from rating curve extended above 4,300 cfs by logarithmic plotting; minimum daily, 

0.5 cfs Dec. 11, 12, 14-23, 1949.

Remarks. Records excellent. Plow regulated by Greenwood Lake (see p. 146) 11 miles above

 station, and since 1928 by Wanaque Reservoir (see p. 147). North Jersey District Water 

Supply Commission diverts water for municipal supply from Wanaque Reservoir. Water is 

diverted to Wanaque Reservoir from Post Brook at Wanaque and from Ramapo River at 

Pompton Lakes (see p. 140).

Cooperation. Water-stage-recorder graph furnished by North Jersey District Water Supply 

Commission.

Rating table, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

1.28

1.34

1.4

1.7

2.1

185

361

730

1,130

1,770

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

S

9

1O

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfsm

In.

Oct.

18.6 

17.9

17.9

17.9

*17.9

19.3

18.6

18.6

18.6

17.9

17.9

17.9

17.9

21

23

31

1,230

<li500 

1,020

734

551

384

258

201

155

101

76

55

39 

428

962

8.0O5.9

258

-

-

Nov.

723 

526

422

474

372

248

211

198

161

*130

231

224

198

214

191

382

644

515 

426

391

276

198

155

164

135

117

81

71

54

35

8,165

272

-

-

Dec.

t

21

19.9

23

*28

18.6

18.6

17.9

24

16.6

18.2

17.2

17.2

17.9

19.9

17.2

16.6 

17.9

17.2

16.6

16.6

16.6

16.6

16.0

16.0

16.6

16.6

16.6

16 . 6 16 . 6

583.3

18. S

_

-

Jan.

17.2 

17.2

16.6

16.6

16.6

16.6

16.6

16.6

16.6

17.2

*17.2

18.6

18.6

18.6

18.6

18.6

18.6

17.9 

17.9

17.9

17.9

17.9

17.9

17.9

17.9

17.9

17.9

17.9

17.9

17 '.9

547.9

17.7

_

-

Feb.

17.9 

17.9

17.9

17.9

17.9

18.6

TB76

17.9

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

18.6 

17.9

17.9

17.9

17.9

17.9

17.9

17.9

17.9

17.2

17.2

17.2

512.8

17.7

-

Mar.

17.2 

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.9

17.9

20

24

23 

28

28

28

27

27

31

31

30

32

31

30

31

37

717.4

23.1

_

-

Apr.

36 

34

54

136

234

302

418

683

589

611

651

592

504

414

384

522

481

354

283

214

170

161

147

1O9

80

SO

 80

73

83 

541

9,O20

3O1

.

-

May

581 

481

507

449

339

291

433

361

241

, 207

164

135

138

111

106

87

55

45

47

52

43

43

47

44

41

41

40

45

40 

39319"

5,292

171

-

-

June

39 

39

39

38

37

37

37

37

37

37

37

35

24

17.2

17.2

17.2

17.9

17.2 

16.6

17.2

16.6

16. 0

16.0

16.6

16.6

17.2

17.9

17.2

17.2 

17.2

762.0

25.4

-

-

July

17.2 

17.9

19.3

18.6

19.3

19.3

17.9

17.9

19.3

17.2

17.2

17.2

17.9

17.9

16.6

17.2

17.2

17.2 

 17.2

17.2

17.9

17.9

17.2

17.2

17.9

17.9

18.6

17.9

17.9 17 . 9

17.2

552.2

17.8

-

-

Aug.

17.9 

17.9

17.9

17.9

17.9

17.9

18.6

17.9

17.2

17.2

17.2

17.2

17.9

18.6

18.6

18.6

18.6

17.9 

17.2

17.2

17.9

17.2

17.2

17.2

17.2

17.2

17.2

*17.2

17.2 

17.2

17.2

547.2

17.7

-

-

Sept.

16.6 

177?

17.2

16.6

16.6

18.5

TT79

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.9

17.9

17.9 

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2

17.2 

17.2

518.3

17.3

-

-

Calendar year 1955: Max l,5OO Mln 16. O Mean 58.9 Cfsm - In. -

Water year 1955-56: Max l,5OO Min 16. O Mean 96.2 Cfsm - In. -

Discharge measurement made on this day.
PASSAIC RIVER BASIN 139

Ramapo River near Mahwah, N. J.

Location. Lat 41°05'5l", long 74°09 I 43", on left bank 350 ft downstream from State Highway 17, three-quarters of a mile downstream from Mahwah River, and 1 mile west of 

Mahwah, Bergen County.

Drainage area. 118 sq ml.

Records available. February 1903 to December 1906, September 1922 to September 1956.

Gage.--Water-stage recorder. Datum of gage Is 253.10 ft above mean sea level, datum of 

1929. Prior to Dec. 31, 1906, chain gage on former bridge at site 250 ft downstream 

at different datum. Sept. 1, 1922, to Dec. 23, 1936, water-stage recorder just below 

former bridge at present datum.

Average discharge. 34 years (1922-56), 219 cfs.

Extremes. Maximum discharge during year, 10,900 cfs Oct. 16 (gage height, 12.53 ft); minimum, 31 cfs Aug. 19, 20; minimum daily, 31 cfs Aug. 20.

1903-6, 1922-56: Maximum discharge, about 12,400 cfs Oct. 9, 1903 (gage height, 

9.8 ft, site and datum then In use); minimum, 7 cfs Dec. 16, 1930, Sept. 12, 1932; minimum daily, 8 cfs Aug. 25, 1929, Sept. 5, 12, 1932.

Remarks. Records excellent except those for period of shifting control, which are good. 

Diurnal fluctuation occasionally at low flow caused by powerplants above station.

Revisions (water years). WSP 781: 1904(M). WSP 1031: 1937-38, 1940.

Rating table, water year 1955-56, except period of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

2.7 

3.0 

3.5 

4.0 

5.0

28

60

137

233

490

6.0 

7.0 

8.0 

9.0 

11.4

810

1,260

2,010

3,250

7,660

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Z2

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

97

92

83

80

81

293

686

472

380

273

241

236

*Z17

600

4,530

7,520

2,830

1,680

1,160

852

686

559

484

433

406

392

350

322

305 

934

1,420

28,696

926

7.85

9.04

Nov.

*880

664

*556

734

848

748

622

610

532

478

689

631

532

628

740

825

1.080

789

652

601

529

475

398

371

338

315

293

282

268 

 

255

17,363

579

4.91

5.47

Dec.

*246

233

231

235

242

225

200

148

139

137

125

123

114

110

112

109

99

93

94

81

74

78

80

84

93

96

82

80

74 

71

11

3,975

128

1.08

1.25

Jan.

68

60

67

70

74

71

67

61

80

*155

196

284

295 zTa

173

160

148

128

120

114

106

101

99

94

90

85

82

77

78 

117

168

3,706

120

1.02

1.17

Feb.

122

130

175

150

141

169

408

356

305

270

270

340

318

253

237

242

210

343

481

385

310

246

218

190

229

322

248

248 216

7,532

260

2.20

2.37

Mar.

190

192

218

229

208

206

240

340

374

288

259

251

235

284

322

295

262

251

240

246

231

235

262

302

310

318

340

340

330

342

8,468

273

2.31

2.67

Apr.

345

412

484

556

676

744

744

884

804

912

972

908

783

668

601

8O7

816

631

523

439

374

330

320

320

279

295

315

273

300

1.120

17,635

588

4.98

5.56

May

820

598

707

610

481

410

716

628

478

425

*385

342

320

291

286

248

212

208

216

214

188

164

162

162

142

132

148

166

139

122

115

10,235

330

2.80

3.23

June

134

179

405

353

251

200

171

150

132

130

137

125

115

106

96

87

80

73

64

58

60

63

63

58

52

52

73

*80

60

52

3,659

122

1.03

1.15

July

45

42

45

42

78

135

117

90

282

325

190

130

153

420

398

248

179

141

114

*99

123

155

125

104

93

84

94

93

77 

64

58

4,343

140

1.19

1.37

Aug.

52

49

47

46

44

64

81

70

56

48

44

40

40

41

38

37

35

35

34

51

53

70

75

60

45

38

45

46

*37 

33

40

1,474

47.5

0.403

0.46

Sept.

42

5T

183

142

90

121

429

2^5

153

118

101

90

88

75

81

135

168

141

110

94

85

73

64

70

77

*67

58

58

60 

64

3,348

112

0.949

1.06

Calendar year 1955: Max 7,520 Min 2o Mean 311 Cfsm 2.64 In. 35. SO

Water year 1955-56: Max 7,520 Min 31 Mean 3O2 Cfsm 2.56 In. 34. SO

Peak discharge (base. 1.4OO efa).--0et. 16 (3 a.m.) 10,9OO cfs (12.53 ft); Oct. 31 (1 a.m.) 1,640 

cfs (7 .56 ft). 

* Discharge measurement made on this day. 

Note. Shifting-control method used Oct. 1-15.
140 PASSAIC RIVER BASIN

Ramapo River at Pompton Lakes, N. J.

Location. Lat 40°59 I 20", long 74°16'48", on right end of dam at pumping station in borough of Pompton Lakes, Passaic County, 1? miles upstream from mouth.

Drainage area. 160 sq mi.

Records available. October 1921 to September 1956.

Gage. Water-stage recorder and concrete dam. Datum of gage is 201.08 ft above mean sea 

level, datum of 1929.

Average discharge . 35 years, 297 cfs (adjusted for diversion since Dec. 1, 1953).

Extremes . Maximum discharge during year, 12,000 cfs Oct. 16 (gage height, 4.40 ft); minimum, 39 cfs Aug. 18.

1921-56: Maximum discharge, 12,300 cfs Mar. 12, 1936 (gage height, 3.56 ft), from 

rating curve extended above 2,000 cfs by computation of peak flow over dam; maximum 

gage height, that of Oct. 16, 1955; practically no flow for several days in October, 

November 1922, August, September 1923, July 1927, and on Oct. 20, 1933.

Remarks . --Records excellent except those below 100 cfs, which are good. Since December 

1953, water diverted by North Jersey District Water Supply Commission to Wanaque Reservoir for municipal supply. Slight regulation by Pompton Lakes.

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

0.14 

.2 

.3 

.5

44

75

145

336

725

1.2 

2.0 

3.0 

4.0

1,420

3,300

6,450

10,300

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

117

103

»96

*82

82

339

937

697

583

418

326 

315

295

535

3,710

9,750

4, 650

2,390

1,540

1,110

864

697

597

531

492

466

430

383

359 

1,000

1, 880

35,774

1,154

0

Nov.

1,210

864

711

818

965

897

756

725

*668

597

787 

818

697

711

897

962

1,580 

1,050

849

772

697

640

544

492

453

418

394

371

348 

326

21,837

728

0

Dec.

315

3T5

305

305

315

*295

274

224

198

189

171 

163

154

145

154

145

138 

131

131

117

103

110

110

117

131

131

110

117

103 

103

(J9

5,408

174

0

Jan.

103

89

96

96

103

103

103

82

110

171

254 

336

418

326

264

233

215 

180

171

163

154

145

145

131

124

124

117

110

110

224

5,138

166

0

Feb.

180

171

243

233

207

233

583

557

453

394

383 

479

479

394

359

348

326 

488

740

55T

479

383

336

284

315

453

383

371

336

11,187

386

0

Mar.

295

3T5" 284

326

305

284

315

466

544

430

383 

359

336

406

518

466

394 

383

359

348

336

336

383

441

430

441

492

505

492

492

505

12,369

399

0

Apr.

492

531

597

682

772

849

880

1,120

1,050

1,190

1.250 

1,160

999

849

756

1,020

1,100 

849

697

611

518

453

430

430

383

383

430

383

359

l.SBo

22,223-

741

0

May

1,120

787

864

802

668

557

834

849

654

583

531 

466

441

394

406

359

315 

295

295

305

274

243

254

254

224

198

207

243

215

189

180

14,006

452

0

June

180

233

505

531

394

305

264

224

207

198

198 

189

171

154

138

138

124 

110

96

89

82

89

82

75

69

64

S5

117

*89

69

5,279

176

0

July

64

59

64

64

89

154

163

124

256

492

295 

189

163

386

505

348

243 

180

145

124

145

180

171

138

117

103

131

124

103

82

75

5,476

177

0

Aug.

69

64

59

59

54

64

-89 103

75

64

59 

54

54

49

49

44

44 

44

49

44

64

69

75

82

69

59

49

59

54

49

59

1,878

60.6

0

Sept.

59

59

120

189

117

235

518

430

215

154

138 

117

110

103

103

154

198 

180

145

131

110

96

89

89

96

89

75

75

69

69

4,332

144

0

Adjusted for diversion

Mean 

Cf sm 

In.

1,154 

7.21 

8.32

728 

4.55 

5.08

Calendar year 1955: 

Water year 1955-56:

174 

1.09 

1.26

166 

1.04 

1.19

38fc 

2.41 

2.60

399 

2.49 

2.88

741 

4.63 

5.17

452 

2.82 

3.26

Observed

Max 9,750 Min 23 Mean 373 

Max 9,750 Min 44 Mean 396

176 

1.10 

1.23

177 

1.11 

1.27

60.6 

0.379 

0.44

144 

0.900 

1.01

Adjusted

Mean 398 Cfsm 2.49 In. 33.78 

Mean 396 Cfsm 2.48 In. 33.71

Peak discharge (base. 1 

2,010 cfs (1.48 ft).

,600 efs). Oct. 16 (7 a.m.) 12,000 cfs (4.40 ft); Oct. 31 (1 to 8 a.m.)

Discharge measurement made on this day. 

t Diversion at station to Wanaque Reservoir for municipal supply, equivalent in cubic feet per 

second. Records of diversion furnished by North Jersey District Water Supply Commission.
PASSAIC RIVER BASIN 141

Pompton River at Pompton Plains, N. J.

Location.--Lat 40°58'13", long 74°16'53", at confluence of Pequannock and Ramapo Rivers, 

2,000 ft upstream from Jackson Avenue Bridge and three-quarters of a mile east of 

Pompton Plains, Morris County.

Drainage area. 355 sq ml.

Records available. March 1903 to December 1904 (fragmentary), May 1940 to September 1956.

;e. Two water-stage recorders, each above a concrete dam. Datum of gages Is 174.46 ft 

"above mean sea level, datum of 1929. Third water-stage recorder at Pequannock, 9,300 ft 

downstream from other recorders, used during high stages. Datum of gage Is 160.00 ft 

above mean sea level, datum of 1929. Mar. 7, 1903, to Dec. 31, 1904, staff gage at 

main spillway at different datum.

Average discharge.--16 years (1940-56), 502 cfs (unadjusted).

Extremes.--Maximum discharge during year, 15,800 cfs Oct. 16 (gage height, 17.06 ft, at

Pequannock), from rating curve extended above 7,200 cfs on basis of logarithmic plotting; 

minimum dally, 90 cfs Aug. 16, 17, 20, 30.

1940-56: Maximum discharge, that of Oct. 16, 1955; maximum gage height, 18.75 ft, 

at Pequannock, Mar. 31, 1951; minimum dally discharge, 41 cfs Oct. 9, 13-15, 1941.

Remarks. Records good. Water diverted from reservoirs on Pequannock and Wanaque Rivers 

Tor~"munlclpal supply (see p. 146). Plow regulated by Oak Ridge, Canlstear, Clinton, and 

Echo Lake Reservoirs on Pequannock River and by Greenwood Lake and Wanaque Reservoir on 

Wanaque River (see p. 146,147). Some diurnal fluctuations at low flow caused by powerplant on Wanaque River.

Revisions (water years). WSP 1202: 1945(M).

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

204 

195

172

*157

157

464

1,280

964

8 O2

559

447

405

374

854

e5,240

el4.000 

ell, 200

e7,760

e4,860

2,810

2,020

1,580

1,260

999

999

868

777

657

607

2,050

4,390

69,111

2,229

_

-

Nov.

2.930 

1,980

1,580

1,790

1,870

1,58O

1,360

1,320

1,180

1,050

1,470

1.5OO

1,260

1,310

1,520

1,780 

2,770

2,160

1,750

1,640

1,36O

1,220

1,04O

961

876

786

701

646

596

524

42,510

1,417

.

-

Dec.

457

446

446

457

446

405

345

316

307

279

269

261

253

253

236 

219

211

211

194

164

186

194

211

219

219

179

186

172

172

156

8,560

276

_

-

Jan.

172 

149

156

156

163

163

163

143

172

244

325

436

512

US

335

307 

279

245

237

236

2 2O

211

203

187

180

180

164

157

157

208

279

7,154

231

_

-

Feb.

if

326

307

279

317

782

716

571

503

491

619

619

503

458

447 

426

633

J a QgQ

831

667

514

458

395

448

606

524

503

479

14,915

514

_

-

Mar.

405 

395

406

436

405

385

15s

632

827

669

583

561

526

645

876

782 

672

597

584

621

538

550

621

717

684

669

745

778

778

786

814

19,O92

616

_

-

Apr.

802 

848

924

1,130

1,370

1,590

1,920

2,670

2,450

2,660

2.79O

27590

2,20O

1,890

1,660

2,180 

2,320

1.81O

1,510

1,270

1,100

986

928

886

753

720

786

701

672

2/145

46,256

1,542

-

May

2.620 

1,870

1,930

1,760

1,450

1,210

1,710

1,740

1,290

*1,130

1,020

9O4

846

740

724

608 

526

448

437

438

396

346

364

386

318

289

289

327

299

270

262

26,947

869

_

-

June

262 

328

687

701

515

403

336

289

270

253

253

245

220

195

180

187 

172

156

143

136

136

136

130

130

122

116

15?

186

*156

136

7,336

245

-

July

122 

116

130

122

157

237

229

187

425

800

437

289

262

481

598

468 

355

280

237

212

319

347

318

271

246

237

319

281

238

213

150

9,083

293

-

Aug.

130 

122

110

110

110

130

180 149"

129

116

109

97

97

97

91

9O

91

104

90

143

129

129

129

110

97

91

97

97

90

116

3,470

112

_

-

Sept.

Mg

162

236

172

479

718

525

298

228

195

179

179

172

179

245 

279

261

219

203

179

164

156

149

157

149

*130

116

116

116

6,581

219

_

-

Calendar year 1955: Max 14.OOO Mln 53 Mean 641 Cfsm - In. -

Water Water year year 1955-56: 1955-56: Max Max 14,000 14,000 Mln Mln 90 90 Mean Mean 713 713 Cfsm Cfsm - - In. In. -- ___

Peak discharge at Pequannock (base, 2.20O cfs). Oct. 16 (2 p.m.) 15,800 cfs (17.06 ft); Oct. 31 

(9 a.m.) 4,630 cfs (10.57 ftJ; Nov. 17 (l p.m.12,930 cfs (8.29 ft)j Apr. 8 (7 p.m.) 2.88O cfs 

(8.20 ft)j Apr. 17 (2 a.m.) 2,470 cfs (7.52 ft); May 1 (2 a.m.) 2,830 cfs (8.12 ft).

* Discharge measurement. made on this day.

e At Pequannoekj stage-discharge relation for spillways affected by backwater.
PASSAIC RIVER BASIN

Passaic River at Little Palls, N. J. 

(Formerly published as Passaic River at Paterson)

Location. Lat 40°53'05", long 74°13'35", on left bank 0.6 mile downstream from Beattiea 

Dam in Little Falls, Passaic County, and 1 mile upstream from Peckman River.

Drainage area. 762 sq mi.

Records available. October 1897 to September 1956. Published as "at Paterson" October 

1897 to September 1955,

Gage. Water-stage recorder. Datum of gage is 120.00 ft above mean sea level (Passaic 

Valley Water Commission benchmark). Prior to Jan. 8, 1933, staff gage and Jan. 8, 

1933, to Sept. 30, 1955, water-stage recorder, at site 3.7 miles downstream at mean 

sea level datum (New Jersey Geological Survey benchmark).

Average discharge. 59 years, 1,213 cfs (unadjusted).

Extremes.--Maximum discharge daring year, 11,600 cfs Oct. 18 (gage height, 9.45 ft); minimum daily, 108 cfs Aug. 20.

1898-1956: Maximum daily discharge, 28,000 cfs Oct. 10, 1903; no flow July 3-5, 

1904, July 16, 23, 1905.

Remarks.--Records excellent except those below 100 cfs, which are good. Diurnal fluctuaETon at medium and low flow caused by hydroelectric plant at Beatties Dam. Flow regulated by reservoirs in Rockaway, Pequannock, and Wanaque River basins (see p. 146). 

Large diversions for municipal supply from Passaic River above Beatties Dam, and from 

Rockaway, Pequannock, and Wanaque Rivers (see p. 148). In addition the Commonwealth 

Water Co. diverts a small amount (average for 1956 was 7.9 cfs) from Canoe Brook near 

Summit; that company and the city of East Orange also divert water for municipal supply 

by pumping from wells.

Cooperation. Records collected in cooperation with Passaic Valley Water Commission.

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

.5 

l.O 

1.5

2.0

66

155

315

540

3.0 

4.0 

6.0 

8.0 

9.3

1,230 

2,240 

4,9OO 

8,400 

11,200

Discharge, year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

3O

31

Itotal

Mean

Cfsm

In.

Oct.

404

355

296

242

226

541

1,520 

1,550

1,500

1,210

969

774

636

895

4,000

7,220

10,900

*11.200

9,570 

7,600

5,940

4,720

3,800

3,140

2,700

2,260

1,900

1,500

1,210

1,660

3,960

94,398

3,045

-

Nov.

4. OOP

3,240

2,740

2,640

2,710

2,520

2,170 

1,980

1,820

1,590

1,700

2,020

1,950

1,860

1,980

2,090

2,880

3,080

2,770 

2,610

2,430

2,170

1,910

1,700

1,53O

1,360

1,260

1,160

1,070 °"°

63,909

2,130

-

Dec.

878

794

744

726

732

732

*690 

624

540

510

480

445

413

391

375

379

367

347

331 

296

226

252

256

277

296

307

307

315

315

242

13,879

448

-

Jan.

236

204

210

207

226

242

236 

204

213

307

431

582

920

836

714

624

535

455

400 

387

347

327

311

292

266

263

242

229

229

303

525

11,503

371

-

Feb.

465

TJO

801

815

738

794

1,710 

1,900

1,780

1,730

1,680

1,790

1,720

1,480

1,270

1,120

998

1,300

2.180 

2,080

1,970

1,840

1,710

1,500

1,350

1,500

1,480

1,500

1,500

41,171

1,420

-

Mar.

1,4OO

1,31O

1,200

1,150

1,070

983

976 

1,370

1,870

1,840

1,770

1,730

1,630

1,710

2,070

1,980

1,960

1,890

1,770 

1,620

1,440

1,440

1,570

1,800

1,810

1,820

1,930

2,O20

2,050

2,140

2.200

51,519

1,662

-

Apr.

2,180

2,180

2,180

2,260

2,360

2,460

2,680 

3.41O

3,770

3,980

4,31O

4.390

4,150

3,800

3,370

3,480

3,650

3,200

2,850 

2,520

2,190

1,890

1,630

1,530

1,350

1,230

1,320

1,260

1,190

1, 980

78,750

2,625

_

-

May

2.960

2,470

2,420

2,400

2,140

1,810

2,250 

2,640

2,300

2,050

1,810

1,510

1,350

1,200

1,130

969

864

756

738 

738

672

576

535

606

505

490

475

535

500

436

408

40,243

1,298

-

June

44O

532

1,030

1.210

962

738

552 

465

404

375

4O4

383

335

285

236

226

236

193

161

TeT

171

196

181

198

229

 163

213

395

375

30O

11,749

392

_

-

July

213

176

178

187

264

436

460 

367

471

1.130

726

48O

391

582

836

696

564

426

331 

277

415

666

618

480

383

359

505

726

588

465

311

14,707

474

-

-

Aug.

226

187

158

148

148

168

Hi

226

187

160

142

127

168

163

144

12O

111

133 

108

213

315

249

216

168

142

124

127

151

151

201

5,496

177

-

-

Sept.

307

309

391

525

383

452

1.650 

1,510

1,120

857

642

460

359

304

285

422

495

455

375 

331

285

252

223

223

239

213

193

198

236

196

13,890

463

-

-

Calendar year 1955: Max 11,200 Mln 20 Mean 1,169 Cfsm - In. -

Water year 1955-56: Max 11,200 Mln 108 Mean 1,206 Cfsm - In. -

Peak discharge (base, 4,400 cfs). --Oct. 18 (1 a.m.) 11,600 cfs (9.45 ft),- Apr. 12 (2 a.m.) 4,430

cfs (5.68 ft).

* Discharge measurement made on this day.
PASSAIC RIVER BASIN 143

Saddle River at Lodi, N. J.

Location. Lat 40°53'25", long 74°04'51", on left bank 560 ft upstream from Cutwater Lane 

Bridge in Lodi, Bergen County, and 3£ miles upstream from mouth.

Drainage area. 54.6 sq mi.

Records available. September 1923 to September 1956.

Gage. Water-stage recorder. Concrete control since Nov. 2, 1938. Datum of gage is 

2~5.00 ft above mean sea level, datum of 1929. Prior to Nov. 2, 1938, at site 560 ft 

downstream at datum 2.54 ft lower.

Average discharge.--33 years, 96.6 cfs.

Extremes. Maximum discharge during year, 1,530 cfs Oct. 16 (gage height, 5.23 ft); minimum, 

25 cfs Aug. 30 (gage height, 1.79 ft).

1923-56: Maximum discharge, 3,500 cfs July 23, 1945 (gage height, 10.00 ft, from 

floodmark in recorder shelter); minimum, 1 cfs May 25, 1935 (gage height, 1.03 ft, site 

and datum then In use); minimum daily, 6 cfs Aug. 4, 1930, Aug. 23, 1934.

Remarks. Records excellent. Occasional regulation at low flow by mills above station. 

Revisions (water years). MSP 781: Drainage area. WSP 1031: 1940(M).

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

1.8 

2.0 

2.2 

2.5

26

47

77

141

3.O 

4.0 

5.0

3O5

8OO

1,390

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

75 

69

58

53

50

186

512

323

217

134

102

90

79

143

606

1.210

825

459

305

240

201

183

165

154

154

144

134

127

122

190 

646

7,956

257

4.71

5.42

Nov.

323 

201

168

189

23O

180

157

163

157

141

204

251

174

180

220

23O

377

154TT

177

177

168

165

154

146

136

129

124

122

115

1O9

5,515

184

3,37

3.76

Dec.

104 

102

104

106

111

*106

98

92

90

38

85

81

77

74

77

77

73

69

73

64

57

60

58

6O

69

77

66

58

58

58 

Si

2,426

78.3

1,43

1.65

Jan.

57 

48

56

57

57

60

58

53

64

1OO

113

152

177

129

96

85

77

71

66

64

63

61

60

57

56

53

50

50

48

72 

1O4

2,314

74.6

1.37

1.58

Feb.

73 

88

136

106

9O

109

281

252

134

113

115

168

146

111

100

102

90

177

318

iM

134

104

98

88

111

154

124

139

136

3,986

137

2.51

2.72

Mar.

109 

111

104

104

102

10"2 98

174

208

139

113

1O9

104

164

265

183

139

131

117

127

124

144

177

211

180

160

192

192

177

186 

180

4,626

149

2.73

3.15

Apr.

157 

141

144

141

134

122

149

254

301

505

224

174

149

139

141

230

269

174

149

134

124

119

122

122

*113

115

165

144

111

T52

4,948

165

3.02

3.37

May

240

134

171

16O

146

124

237

237

139

122

119

109

106

1O2

115

106

88

85

85

94

94

79

75

88

71

66

73

98

77

67 

67

3,574

115

2.11

2.43

June

73

1O5

224

189

100

79

71

64

61

61

69

61

57

51

48

46

57

56

45

41

45

51

46

46

45

39

54

131

75

48

2,138

71.3

1.31

1.46

July

43 

42

45

47

74

117

86

60

120

195.

102

64

71

113

86

66

63

56

48

42

96

102

64

54

51

54

69

73

56

46 

42

2,247

72.5

1.33

1.53

Aug.

39 

37

33

34

33

46

83

55

41

35

33

32

32

37

35

32

30

30

41

33

64

54

37

32

31

30

30

29

3Z

3O 

40

1,177

38.0

O.696

0.8O

Sept.

43 

40

58

45

36

59

274

184

63

53

45

41

39

37

42

96

83

60

46

45

40

37

39

46

41

36

*41M

39

37

1,779

59.3

1.09

1.21

Calendar year 1955: Max 1,21O Win 19 Mean 118 Cfsm 2.16 In. 29.25

Water year 1955-56: Max 1,210 Min 29 Mean 117 Cfsm 2.14 In. 29.08

Peak discharge (base. 6OO cfs).--Oct. 16 (4 p.m.) 1,530 cfs (5.23 ft); Oct. 31 (9 a.m.) 8O6 cfs 

(4.01 ft). 

* Discharge measurement made on this day.
144 PASSAIC RIVER BASIN

Weasel Brook at Clifton, N. J.

Location. Lat 40°52'12", long 74"08'47", at right end of masonry dam at Jewett Street In 

Clifton, Passaic County.

Drainage area. 4.45 sq mi.

Records available. March 1937 to September 1956.

Gage. Water-stage recorder above masonry dam. Datum of gage is 68.52 ft above mean sea 

level, datum of 1929.

Average discharge.--15 years (1937-43, 1947-56), 5.44 cfs.

Extremes. Maximum discharge during year, 290 cfs Oct. 14 (gage height, 2.90 ft), from 

rating curve extended above 120 cfs by logarithmic plotting; minimum daily, 2.1 cfs 

July 1.

1937-56: Maximum discharge, 450 cfs Mar. 13, 1953 (gage height, 3.35 ft), from 

rating curve extended above 120 cfs by logarithmic plotting; no flow for many days 

when water was below spillway and waste gate was closed.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Occasional regulation by mill above station.

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

1.16

1.2

1.3

1.4

2.1 

3.0 

5.8 

9.5

1.5

1.6 

1.9

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2 

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsn

In.

Oct.

4.1 

3.2 

3.5

3.7

3.0

42

11

14 

5.5

4.9

4.6

4.0

3.7

54

34

60

24

14

12

9.9

8.7

7.5

7.2

8.1

7.2

6.8

6.5

6.5

5.8 

48

12

439.4

14.2

3.19

3.67

Nov.

9.1 

7.9 

7.2

10

6.8

6.2

8.7

6.2 

5.8

8.7

19

7.2

6.2

12

*6.8

32

n

8.3

9.5

8.7

7.9

7.2

6.5

6.2

6.8

6.5

5.8

5.5

5.8

5.5

261.0

8.70

1.96

2.18

Dec.

Irl

4.3

4.6

4.6

4.6

4.3

4.3 

4.3

4.0

3.7

4.0

4.0

4.0

4.0

3.5

4.0

4.3

4.3

4.0

4.0

3.7

3.7

4.0

4.6

4.6

4.0

3.7

3.5 

3.5

126.5

4.08

0.917

1.06

Jan.

3.2 

3.2

4.0

3.5

3.2

3.0

g,7

2.7 

6.4

6.6

4.1

17

6". 0

4.5

4.0

3.7

3.7

3.2

3.2

3.2

3.0

3.0

3.0

2.7

2.7

2.7

3.0

3.2

2.7

12 

3.2

132.3

4.27

0.960

1.11

Feb.

3.0 

1? 

4.2

3.7

5.6

27

18

6.2 

5.5

5.2

7.8

8.3

5.2

4.9

5.2

4.3

4.3

~9\1 39

7.5

6.5

6.2

5.8

5.5

16

6.2

5.5

14

6.2

262.9

9.07

2.04

2.20

Calendar year 1955 : Max 125 Min 1.5

Mar.

5.6 

6.2 

5.5

5.8

5^2

5.5

5.8

27 

6.8

6.2

5.8

5.8

6.5

29 -f.l

7.9

8.5

7.5

7.2

8.7

12

16

21

16

11

15

12

10

13

11

9.5

322.3

10.4

2.34

2.69

Apr.

8.7 

8.3 

8.3

8.7

7.9

7.5

19

i

13

12

12

11

10

13

20

9.9

8.7

7.9

7.5

7.2

6.8

7.2

6.8

6.5

9.3

6.8

6\2

10

322.4

10.7

2.40

2.69

May

5.8

11 

7.4

7.5

5.5

13

11

5.8

5.5

4.9

4.9

4.6

5.5

4.9

4.9 *4.0

4.6

5.0

4.6

3.7

3.7

4.6

3.7

3.5

3.5

6.6

4.0

4.0

3.5 

5.9

183.3

5.91

1.33

1.53

June

10 

fi

6.0

5.8

4.9

4.3

4.3 

4.0

4.2

4.3

4.0

4.0

3.5

3.5

4.0

3.5

3.5

3.5

3.5

5.5

3.0

3.5

8.0

3.5

2.7

7.8

6.4

3.0

2.5

167.7

5.59

1.26

1.40

July

4.5

2.7

14

3.7

3.0

2.8 

20

4.6

3.7

3.5

13

5.4

3.7

5.3

3.7

3.2

3.2

3.2

~3.7 21

4.0

4.3

6.6

4.3

8.3

4.0

3.2

3.2 

3.2

173.6

5.60

1.26

1.45

Aug.

3.0 

3.0 

3.0

2.7

2.7

12

3.5

3.5 

3.0

3.3

2.5

2.3

577

3.4

3.8

3.0

2.7

2.5

2.5

2.9

18 ~~3~. 7

3.2

3.0

2.5

2.3

2.7

6.2

4.3

3.0

11

134.9

4.35

0.978

1.13

Sept.

3.2 

4.0 

2.3

777

3.0

~~5". 25 2

3.5 

3.0

3.0

3.0

2.7

2.7

4.0

10

9

4.5

3.5

3.0

4.5

3.0

2.5

2.5

4.5

3.0

2.5

3.5

»5.0

3.0

2.5

133.8

4.46

1.00

1.12

Mean 7.22 Cfsra 1.62 In. 22.03

Water year 1955-55 : Max 60 Min 2.1 Mean 7.27 Cfsra 1.63 In. 22.23

10 p.m./ ±ti cis vc.33 itj; oept. o i< p.m.; lea cis \z.ii T^>.

* Discharge measurement made on this day.

Note. No gage-height record Jan. 13-15, Apr. 16, June 12-24, Sept. 14-30; discharge estimated on 

basis of records for Second River at Belleville.
PASSAIC RIVER BASIN 145

Second River at Belleville, N. J.

Location. Lat 40°47'17", long 74°10'19", on right bank at Belleville, Essex County, 

300 ft downstream from Hendricks Brook, 360 ft downstream from Franklin Avenue, and 

1.4 miles upstream from mouth.

Drainage area. 11.6 sq mi.

Records available. May 1937 to September 1956.

Sage. Water-stage recorder and concrete control. Datum of gage is 62.6 ft above mean sea 

revel, datum of 1929.

Average discharge. 19 years, 18.1 cfs.

Extremes. Maximum discharge during year not determined, occurred Oct. 14; minimum, 

4.0 cfs Sept. 30 (gage height, 1.34 ft).

1937-56: Maximum'discharge, 3,300 cfs July 23, 1938 (gage height, 7.05 ft), from 

rating curve extended above 480 cfs by critical-depth study at 4.35 ft and contractedopening method and critical-depth study at 7.05 ft; minimum, 0.8 cfs July 29, 1941 

(gage height, 1.12 ft).

Remarks. Records good except those below 10 cfs and those for periods of no gage-height 

record, which are fair.

Rating table, water year 1955-56 (gage height. In feet, and discharge, 

In cubic feet per second)

1.35

1.4

1.5

1.6 

1.8

4.3

6.0

10

16

34

2.0 

2.2 

2.5 

2.8

61

101

190

320

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

8.0

4.3

572

5.6

6.0

a 120

20

28

6.7

7.1

7.1

7.1

6.7

a300

aTzTJ

a!70

aSO

19

15

13

12

9.3

8.4

13

9.3

8.9

8.4

8.4

8.0

a 100

a30

1, 134.5

36.6

3.16

3.64

Nov.

14

11

a!6

13

9.3

8.4

alB 

10

8.9

10

a27

11

9.3

20

10

108

20

14

19

16

12

11

11

9.8

9.3

9.3

8.9

8.4

8.4

8*4

467.4

15.6

1.34

1.50

Dec.

8.4

8.0

8.0

8.4

8.4

9.3 870"

8.4

8.4

8.4

6.7

7.1

8.4

8.0

8.4

7.5

7.1

6.7

7.1

6.7

6.3

6.7

6.7

6.7

6.7

6.0

S7T

6.7

6.3

6.7

6.0

228.9

7.38

0.636

0.73

Jan.

5.2

5.6

8.8

7.1

6.7

6.3

6.0

5.2

12

14

7.5

37

14

6.7

6.0

6.0

6.0

6.0

6.0

6.0

5.2

4.9

5.?

5.2

5.2

5.2

5.2

4.9

5.2

47

6.7

278.0

8.97

0.773

0.89

Feb.

51 5.6

8.9

9.3

11

101

41

11

9.8

10

15

12

8.4

8.4

10

8.0

8.0

"IF 116

13

11

9.3

8.9

8.9

40

10

9.3

36

11

617.8

21.3

1.84

1.98

Mar.

10

11

9.8

14

10

13

19

97

IS

13

12

12

15

94

18

16

20

14

14

19

29

34

37

30

18

25

22

18

35

20

16

730.8

23.6

2.03

2.34

Apr.

15

15

15

16

14

14

79

74

54

29

23

21

20

16

28

34

17

16

15

14

12

12

14

12

12

23

12

11

IT

27

675

22.5

1.94

2.16

May

12

30

17

18

10

66

6T

14

13

13

12

11

11

15

12

12

*10

14

11

17

9.8

9.8

11

9.3

8.9

8.4

9.3

8.9

8.9 11

495.3

16.0

1.38

1.59

June

30

77

26

11

10

10

9.8

10

8.0

14

9.3

8.9

9.3

9.8

9.8

9.8

8.0

8.9

8.0

8.0

18

8.9

9.9

21

8.7

8.9

~B".9 78

7.5

6.7

472.1

15.7

1.35

1.51

July

6.0

3,4

11

6.3

45

8.0

6.0

22

58

8.9

8.4

7.5

26

8.0

6.3

31

7.1

7.1

7.1

8.0

~6.7 107

8.9

9.3

14

20

60

8.0

6.3

7.1

7.1

550.5

17.8

1.53

1.76

Aug.

7.5

7.1

6.7

6.0

6.0

54

9.3

7.5

8.0

11

6.3

5.6

29

9.8

8.4

7.5

7.1

8.1

10

8.3

89

7.1

6.7

6.3

4.9

4.3 6~7o~

27

16

7.1

27

424.6

13.7

1.18

1.36

Sept.

17

7.5

5.2

6.7

7.5

~22" 238

9.3

6.0

7.1

7.1

7.1

7.1

7.1

25

19

8,4

7.5

6.0

13

7.1

6.0

4.9

16

6.0

6.0

9.0

11

4.9

4.5

508.8

17.0

1.47

1.63

Calendar year 1955: Max 368 Mln 4.3 Mean 17.5 Cfsm 1.51 In. 20.46

Water year 1955-56: Max 300 Mln 4.3 Mean 18.0 Cfsm 1.55 In. 21.09

Peak discharge (base, 950 cfs). Oct. 14 (time and discharge unknown); Nov. 16 (12 m.) 1,090 cfs

(4.27 ft); Sept. 6 (6 p.m.) 2,190 cfs (5.80 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of weather records and records for Elizabeth 

River at Elizabeth and Weasel Brook at Clifton.
146 PASSAIC RIVER BASIN

Reservoirs in Passaic River basin, N. J.

Splitrock Reservoir . Lat 40°57 I 40", long 74°27'45", at dam on Beaver Brook, 2 miles northeast of Hlbernia, Morris County. Drainage area, 5.50 sq mi. Records available, October 

1953 to September 1956 in reports of Geological Survey. December 1948 to September 1953 

in files of Trenton district office, Geological Survey. Staff gage. Datum of gage is 

at mean sea level.

Reservoir is formed by a concrete gravity dam with earth embankment; sluice gate 

first closed in December 1948. Capacity at spillway level (elevation, 835 ft), 

3,310,000,000 gal. Plow is regulated by two 30-inch sluice gates. Plow is released for 

diversion for municipal supply of city of Jersey City. Elevation record and capacity 

table furnished by city of Jersey City, Bureau of Water.

Boonton Reservoir . Lat 40°53 T , long 74°24 T , at dam on Rockaway River at Boonton, Morris 

County . Drainage area, 119 sq mi. Records available, October 1953 to September 1956 

In reports of Geological Survey. October 1906 to September 1911 and October 1913 to 

September 1953 in files of Trenton district office, Geological Survey. Hook gage. 

Datum of gage is at mean sea level.

Reservoir is formed by a Cyclopean masonry dam with earth wings; dam completed in 

1904. Capacity at spillway level (elevation, 305.25 ft), 7,620,000,000 gal. Flow is 

regulated by three outlets in gatehouse at head of conduit and by two 48-inch sluice 

pipes (bottom of sluice pipes at elevation 205 ft). Water is diverted from reservoir 

for municipal supply of city of Jersey City. Elevation record and data for capacity 

table furnished by city of Jersey City, Bureau of Water.

Canistear Reservoir. Lat 41°06'30", long 74°29'30", at dam on Pacock Brook near Stockholm, 

Sussex County. Drainage area, 5.6 sq mi. Records available, October 1953 to September 

1956 in reports of Geological Survey. October 1924 to September 1953 in files of 

Trenton district office, Geological Survey. Staff gage. Datum of gage is at mean sea 

level.

Dam is earth embankment type; date completed unknown. Capacity at spillway level 

(elevation, 1,087.0 ft), 2,515,000,000 gal. Reservoir used for storage and water released for diversion at Macopin intake dam on Pequannock River for municipal supply of 

city of Newark. Outflow is controlled mostly by operation of gates in pipes through 

dam. Elevation record and capacity table furnished by city of Newark, Division of 

Water.

Oak Ridge idgReservoir.--Lat R 41°02'30", long 74°30ilO", at dam on Pequannock River near Russia,

ris C

1956. October 1924 to September 1953 in files of Trenton district office, Geological 

Survey. Staff gage. Datum of gage is at mean sea level.

Reservoir is formed by earth-fill dam with ogee overflow section; date dam completed 

unknown; dam raised 10 ft in 1917-18. Capacity at spillway level (elevation, 846.0 ft), 

3,982,000,000 gal. Reservoir used for storage and water released for diversion at 

Macopin intake dam on Pequannock River for municipal supply of city of Newark. Outflow 

is controlled mostly by operation of gates in pipes through dam. Elevation record and 

capacity table furnished by city of Newark, Division of Water.

Clinton Reservoir. Lat 41°04', long 74°27 T , at dam on Canose Brook at Clinton, Passaic 

County. Drainage area, 10.5 sq mi. Records available, October 1953 to September 1956 

in reports of Geological Survey. October 1924 to September 1953 in files of Trenton 

district office, Geological Survey. Staff gage. Datum of gage is at mean sea level. 

Reservoir is formed by earth-fill dam, completed about 1890. Capacity at spillway 

level (elevation, 992.0 ft), 3,518,000,000 gal. Reservoir used for storage and water 

released for diversion at Macopin intake dam on Pequannock River for municipal supply of 

city of Newark. Outflow is controlled mostly by operation of gates in pipes through 

dam. Elevation record and capacity table furnished by city of Newark, Division of Waten

Echo Lake. Lat 41°03 T 00", long 74°24 T 30", at dam on Cotters Brook near Charlotteburg, 

Passaic County. Drainage area, 4.35 sq mi. Records available, October 1953 to September 1956 in reports of Geological Survey. October 1924 to September 1953 in files of 

Trenton district office, Geological Survey. Staff gage. Datum of gage is at mean sea 

level.

Lake is formed by earth-embankment type dam; dam completed in 1927. Capacity at 

spillway level (elevation, 894.0 ft), 1,678,000,000 gal. Lake used for storage and 

water released for diversion at Macopin intake dam on Pequannock River for municipal 

supply of city of Newark. Outflow is controlled mostly by 1 gate, 60 by 36 inches, and 

2 gates, 36 by 36 inches, in gatehouse at dam. Elevation record and capacity table 

furnished by city of Newark, Division of Water.

Greenwood Lake. Lat 41°09'36", long 74°20'03", in gatehouse near right end of Greenwood 

Lake Dam on Wanaqme River at Awosting, Passaic County. Drainage area, 27.1 sq mi. 

Records available, June 1898 to November 1903, June 1907 to September 1956 (gage heights 

only prior to October 1953). Water-stage recorder. Datum of gage is 608.86 ft above 

mean sea level (New Jersey Geological Survey benchmark). Prior to Oct. 1, 1931, staff 

gage on former railroad bridge at site 100 ft upstream at datum 89.75 ft lower. Maximum 

contents during water year, 8.217,000,000 gal Oct. 17 (gage height, 12.17 ft); minimum, 

6,805,000,000 gal Aug. 29-31 (gage height, 9.91 ft). Maximum contents during periods 

1898-1903, 1907-56, 9,528,000,000 gal Oct. 9-14, 1903 (gage height, 14.25 ft, present 

datum); minimum, 3,160,000,000 gal several days in November 1900 (gage height, 3.50 ft, 

present datum) .

Reservoir is formed by earth fill and concrete spillway; dam completed about 1837 

and reconstruction completed in 1928 with crest of spillway 0.25 ft lower. Usable capacity, 6,860,000,000 gal between gage heights -4.00 ft (sill of gate) and 10.00 ft 

(crest of spillway). Dead storage, 7,140,000,000 gal. Outflow mostly regulated by 

2 gates, 3.5 by 5.0 ft. Records given herein represent usable capacity. Lake used for 

recreation .
PASSAIC RIVER BASIN 147

Reservoirs in Passaic River basin, N. J. Continued

Wanaque Reservoir. Lat 41°02'33", long 74°17'36", at Raymond Dam on Wanaque River at 

wanaque, Passaic County. Drainage area, 90.4 sq mi. Records available, October 1953 

to September 1956 in reports of Geological Survey. October 1929 to September 1953 In 

files of Trenton district office, Geological Survey. Water-stage recorder. Datum of 

gage is at mean sea level (North Jersey District Water Supply Commission datum).

Reservoir Is formed by earth-fill with concrete-core-wall main dam and seven secondary dams; dams completed In 1927 and storage begun in March 1928. Total capacity at 

spillway level (elevation, 300.3 ft), 28,010,000,000 gal. Capacity available by gravity at spillway level, 26,230,000,000 gal. Outflow mostly controlled by sluice gates in 

intake conduits in gatehouse In Raymond Dam and regulated to aqueduct or river by valves 

in lower gatehouse. Water Is diverted from reservoir for municipal supply. Diversion 

to reservoir from Post Brook (see p. ) and Ramapo River (see p. ). Elevation 

record and capacity table furnished by North Jersey District Water Supply Commission.

Month-end elevation or gage height and contents, water year October 1955 

to September 1956

Date

Oct. 31.......

Nov . 30 .......

Calendar 

year 1955. .

Feb . 29 .......

May 31 .......

Sept . 30 .......

Water year 

1955-56. . . .

Date

Sept. 30.......

Dec. 31. ......

Calendar 

year 1955. .

Sept. 30.. .....

Water year 

1955-56....

Date

Dec . 31 .......

Calendar 

year 1955. .

Sept. 30. ......

Water year 

1955-56....

Splltrook Reservoir*

Elevation 

or gage 

height 

(feet)

835.15 

835.48 

835.50 

835.10

-

835.05 

835.25 

835.18 

835.25 

835.12 

835.08 

835.12 

835.05 

835.00

-

Contents 

(million 

gallons)

3,340 

3,406 

3,410 

3,330

-

3,320 

3,360 

3,346 

3,360 

3,334 

3,326 

3,334 

3,320 

3,310

-

Change 

In 

contents 

(equivalent 

In cfs)

+3.3 

+ .2 

-4.0

+ .2

-.5 

+2.1 

-.7 

+ .7 

-1.3 

-.4 

+ .4 

-.7 

-.5

-.1

Oak Ridge Reservoir**

843.00 

846.25 

845.90 

842 . 40

-

839.75 

844.95 

846.05 

846 . 40 

845.95 

841.25 

841.55 

835.50 

835.70

-

3,475 

3,931 

3,881 

3,393

-

3,038 

3,746 

3,902 

3,953 

3,888 

3,238 

3,278 

2,492 

2,517

-

+22.8 

-2.6 

-24.4

+ .7

-17.7 

+37.8 

+ 7.8 

+2.6 

-3.2 

-33.5 

+2.0 

-39.2 

+1.3

-4.0

Greenwood Lake**

10.11 

10.81 

10.20 

10.08

-

10.17 

10.30 

10.34 

10.80 

10.15 

9.98 

10.06 

9.96 

10.06

-

6,928 

7,362 

6,984 

6,903

-

6,965 

7,071 

7,071 

7,356 

6,953 

6,848 

6,897 

6,836 

6,897

-

+21.7 

-19.5 

-4.0

-.9

+3.1 

+5.7 

0 

+14.7 

-20.1 

-5.4 

+2.4 

-3.0 

+3.1

-.1

Boonton Reservolrt

Elevation 

(feet)

305.43 

306.10 

305.54 

305.16

-

304.98 

305.64 

305.81 

305.78 

305.38 

303.80 

305.22 

302.26 

304.64

-

Contents 

(million 

gallons)

7,667 

7,841 

7,695 

7,597

-

7,550 

7,721 

7,766 

7,758 

7,654 

7,243 

7,612 

6,852 

7,461

-

Change 

In 

contents 

(equivalent 

In cfs)

+8.7 

-7.5 

-4.9

-.9

-2.3

+9.1 

+2.2 

-.4 

-4.8 

-21.2 

+ 18.4 

-37.9 

-31.4

-.9

Clinton ReservolrtJ

992.00 

992.38 

991 . 90 

990.55

-

989.17 

992.10 

992.19 

992.52 

992.10 

990 . 94 

991.05 

988.55 

982.35

-

3,518 

3,567 

3,505 

3,332

-

3,156 

3,531 

3,543 

3,586 

3,531 

3,382 

3,396 

3,076 

2,307

-

+2.4 

-3.2 

-8.6

+2.8

-8.8 

+20.0 

+ .6 

+2.2 

-2.7 

-7.7 

+ .7 

-16.0 

-39.7

-5.1

Wanaque Reservolrt

295.23 

302.57 

302.03 

299.71

-

297.51 

299.81 

302.01 

302 . 70 

301 . 40 

298.74 

298.23 

293.84 

291.07

-

24,331 

29,759 

29,344 

27,558

-

25,947 

27,637 

29,328 

29,860 

28,860 

26,828 

26,461 

23,368 

21,519

-

+271 

-21.4 

-89.1

+3.9

-80.4 

+ 90.2 

+84.3 

+27.4 

-49.9 

-105 

-18.3 

-154 

-95.4

-11.9

Canlstear Reservoir*

Elevation 

(feet)

1,086.13 

1,086.25

1,086.14

-

1,086.13 

1,086.16 

1,086.16 

1,086.33 

1,086.14 

1,086.09 

1,086.08 

1,086.05 

1,086.04

-

Contents 

(million 

gallons)

2,421 

2,434 

2,425 

2,422

-

2,421 

2,424 

2,424 

2,443 

2,422 

2,417 

2,416 

2,412 

2,411

-

Change 

In 

contents 

(equivalent 

In cfs)

+0.6 

-.5 

-.1

0

0 

+ .2 

0 

+1.0 

-1.0 

-.3 

0 

-.2 

-.1

0

Echo Lake*

888.53 

893.49 

893.01 

892.12

-

890.48 

891.41 

891.95 

890.06 

891.50 

891.92 

891.95 

890.50 

887.48

-

1,196 

1,629 

1,584 

1,504

-

1,359 

1,441 

1,488 

1,325 

1,449 

1,486 

1,488 

1,360 

1,110

-

+21.6 

-2.3 

-4.0

+2.7

-7.2 

+4.4 

+2.3 

-8.4 

+6.2 

+1.9 

+ .1 

-6.4 

-12.9

-.4

1

* Elevation at 9 a.m.

t Elevation at 8 a.m. on first day of following month.

* Elevation at 12 m. on first day of following month.

** Elevation at 6 a.m. on first day of following month, 

tt Ele-watlon at 9 a.m. on first day of following month.

** Gage height at 12 p.m.
148 PASSAIC RIVER BASIN

Diversions in Passaic River basin, N. J.

Records of diversions listed below are furnished by municipalities or water companies 

which make the diversions.

Jersey City diverts water from Boonton Reservoir on Rockaway River at Boonton for municipal supply.

City of Newark diverts water from reservoir formed by Macopin intake dam on Pequannock 

River for municipal supply.

North Jersey District Water Supply Commission diverts water for municipal supply from 

Wanaque Reservoir on Wanaque River. In addition to 'water from Wanaque River, the Commission stores water diverted into Wanaque Reservoir from Post Brook near Wanaque and Ramapo 

River by pumping from Pompton Lakes. Figures of diversion from Wanaque Reservoir given 

herein show total diversion from Passaic River basin by North Jersey District Water Supply 

Commission. *

The Passaic Valley Water Commission diverts water from Passaic River above Seattle's 

Dam at Little Palls for municipal supply.

Dlversions. In cubic feet per second, water year October 1955 to September 1956

Month

Calendar year 1955

September. ..........

Water year 1955-56

Jersey 

City

97.7 

95.0 

98.1

98.3

103 

96.9 

97.2 

96.2 

98.5 

105 

99.3 

101 

98.3

98.9

Newark

87.0 

84.9 

86.8

86.8

85.3 

84.6 

83.6 

85.7 

87.4 

93.8 

79.7 

92.7 

89.1

86.7

North Jersey District Water Supply Commission

From Wanaque 

Reservoir

158 

142 

151

146

143 

143 

140 

140 

146 

158 

141 

162 

158

148

Prom Post Brook 

to Wanaque 

Reservoir

12

5.0 

.5

3.1

.8 

3.5 

3.0

5.0 

2.5 

.7 

.6 

0 

.2

2.8

From Ramapo River 

to Wanaque 

Reservoir

0 

0 

0

24.6

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Passaio valley 

Water 

Commission

51.5 

49.1 

42.5

50.6

46.7 

41.3 

40.7 

40.4 

40.6 

59.9 

48.0 

59.1 

51.2

47.6
ELIZABETH RIVER BASIN 149

Elizabeth River at Elizabeth, N. J.

Location.--Lat 40°40'03", long 74°13'09", on left bank .85 ft upstream from Westfleld 

Avenue Bridge In Elizabeth, Union County, and 3^ miles upstream from mouth.

Drainage area. 18.0 sq ml.

Records available. October 1921 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 5.23 ft above mean 

sea level, datum of 1929. Prior to Oct. 1, 1922, hook gage at same site at datum 

4.14 ft higher and Oct. 1, 1922, to May 18, 1923, at present datum.

Average discharge. 35 years, 23.0 cfs (unadjusted).

Extremes. Maximum discharge during year, about 2,000 cfs Oct. 14; minimum dally, 1.7 cfs

1921-56: Maximum discharge, 2,720 cfs July 23, 1938, Sept. 14, 1944, from rating 

curve extended above 1,100 cfs on basis of contracted-opening determination of peak 

flow; maximum gage height, 15.02 ft Sept. 11, 1954, from floodmark In recorder shelter; 

no flow many times.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Diversion by pumpage from Hammock well field, in Union, for municipal supply by 

Elizabethtovm Water Co. probably reduces the flow past station. Flow occasionally 

regulated at Ursino Lake Dam.

Revisions (water years). WSF 726: 1931. WSP 851: Drainage area.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

2.4

2.5

2.6 

2.9 

3.2

1.7

3.0

4.8

13

29

3.5 52

4.0 116

4.5 219

5.1 400

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

18

8.6

O

11

11

146

49

35

14

11

12

11

11

400

13T

130

57

26

19

16

15

13

11

17

14

13

12

12

11

126

30

1,399.7

45.2

_

-

Nov.

20

16

22

19

12

9.7

25

13

12

36

73

15

12

49

20

"35 184

20

30

20

15

14

14

12

14

*11

15 9.1

11

11

763.8

25.5

-

-

Dec.

11

IT

9.4

9.4

7.9

1.7

9i7

10

8.6

7.2

8.3

9.7

9.7

10

10

8.3

6.6

8.1

8.8

8.8

9.1

8.3

7.7

7.2

5.7

6.9

8.6

9.1

8 . 8

6.4

253.8

8.19

-

-

Jan.

5.5

13"^ 5.2

9.3

8.8

8.6

7.2

5.9

16

17

11

50

26

9.5

6.9

8.0

9.1

8.8

8.8

10

7.4

6.1

7.4

8.6

8.3

8.3

8.0

6.9

11

82

IT

412.6

13.3

_

-

Feb.

10

58

18

19

16

102

90

24

17

14

21

- 18

11

11

*18

12

12

16

34

21

17

13

12

13

61

14

14

66

20

772

26.6

-

-

Mar.

15

23

13

21

IS.

28

43

139

29

18

13

15

20

"34 169

24

35

18

15

28

51

60

68

54

24

31

26

20

51

23

15

1,135

36.6

-

-

Apr.

13

14

15

16

14

19

145

"56 201

47

44

11ir1

28

38

18

16

14

14

12

12

16

13

13

40

14

13

11

25

947.2

31.6

-

-

May

13

20

30

18

13

10

34

20

16

15

14

13

11

12

15

15

12

17

11

10

10

13

15

12

11

11

28

12

11

22

15

479

15.5

-

-

June

41

"52 121

16

15

13

13

13

11

15

14

17

14

14

14

7.8

frl

15

11

36

14

12

37

17

12

33

31

13

10

645.9

21.5

-

-

July

8^0

5TT 11

10

76

45

14

9.4

53

38

16

13

14

20

12

16

30

18

13

12

"54" 111

12

13

13

11

100

12

10

11

11

775.5

25.0

-

-

Aug.

11

11

11

10

9.5

60

15

12

13

15

12

8.0

11

16

10

8.0

7.0

6.5

6.0

5.5

80

TZ

10

8.0

7.0

6.0

6.0

8.0

20

10

25

449.5

14.5

-

-

Sept.

23

20

18

7.5

4.0

"33 169

14

9.4

9.1

9.1

26

11

11

41

33

13

12

10

21

9.7

7.7

6.6

28

9.7

9.4

10

20

8.0

5.2

608.4

20.3

-

-

Calendar year 1955: Max 822 Min 1.7 Mean 27.9 Cfsm - In. -

Water year 1955-56: Max 400 Min 1.7 Mean 23.6 Cfsm - In. -

Peak discharge (base, 700 cfs). Oct. 14 (5 p.m.) about 2,000 cfs; Feb. 18 (12 m.) 724 cfs

(5.81 ft),- July 21 (11 a.m.) 800 cfs (6.00 ft); Sept. 6 (9 a.m.) 1,020 cfs (6.65 ft).

* Discharge measurement made on this day.

Note. --No gage-height record Oct. 14, Apr. 26, 30, May 2, 3, July 23 to Aug. 31; discharge estimated on basis of records for Second River at Belleville and Rahway River near Springfield.

505690 O - 59 - 11
150 RAHWAY RIVER BASIN

Rahway River near Springfield, N. J.

Location. Lat 40°41'11", long 74°18'44", on left bank 50 ft downstream from bridge on 

U. S. Highway 22, 100 ft downstream from Pope Brook, and 1-f miles south of Springfield, 

Union County.

Drainage area. 25.5 sq ml.

Records available.--July 1938 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 66.17 ft above mean 

" sea level, datum of 1929.

Average discharge. 18 years, 26.8 cfs (unadjusted).

Extremes. Maximum discharge during year, 643 cfs Oct. 14 (gage height, 4.13 ft); minimum, 

2.1 cfs Aug. 16, 17, 18.

1938-56: Maximum discharge, 1,940 cfs July 23, 1938 (gage height, 7.41 ft), from 

rating curve extended above 900 cfs on basis of contracted-opening determination of 

peak flow; minimum, 0.9 cfs Sept. 7-9, 11, 12, 1944 (gage height, 1.18 ft).

Remarks. Records excellent except those below 6.0 cfs and those for periods of no gageheight record, which are good. Water for municipal supply diverted from river by city 

of Orange. The flow past this station Is affected by diversions by pumpage from wells 

by Orange, South Orange, Short Hills Water Co., and Springfield station of Elizabethtown Water Co.

Rating table, water year 1955-56 (gage height. In feet, and discharge, 

In cubic feet per second)

1.3

1.4

1.5

1.6

1.7

3.2

6.3

11

17

25

1.8 

2.0 

2.2 

2.8

36

67

110

279

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

9.5

4.3

473

4.3

4.3

53

42

29

13

7.0

5.9

 5.2

4.6

212

266

178

125

50

31

19

14

11

9.6

9.6

10

8.2

7.8

7.4

7.4

116

77

1,345.4

43.4

-

-

Nov.

29

20

15

18

14

12

12

14

12

12

62

29

19

26

20

183

83

34

27

27

23

21

18

15

13

12

11

11

9.6

Q 1

g"1-

810.7

27.0

-

-

Dec.

8.7

8.7

8.7

8.7

8.7

8.2

8.2

7.8

7.8

7.0

6.6

6.6

6.3

*5.9

6.3

5.9

5.6

5.6

5.6

5.2

4.9

a4.9

a4.9

aS.O

a5.5

4.9

4.9

4.6

4.6

4.9

liS.

195.5

6.31

-

-

Jan.

4.0

a4.0

a6.0

5.6

4.9

4.6

4.3

3^7.

6.5

10

6.3

29

13

7.0

5.6

5.6

4.9

4.3

4.9

6.6

4.3

4.0

4.3

4.9

4.3

5.2

5.2

4.9

5.2

44

"Tf.5

235.6

7.60

-

-

Feb.

5.2

56

15

12

15

84

166

26

18

16

18

22

14

12

14

11

9.6

256

60

29

21

15

13

12

51

35

21

70

25

1,121.8

38.7

.

-

Mar.

17

21

18

22

13

18

23

189

60

29

23

21

20

~78" 205

39

39

27

24

30

38

53

77

81

46

60

65

52

68

69

49

1,574

50.8

-

-

Apr.

35

27

24

24

22

18

142

262

165

111

62

39

34

27

37

61

33

23

19

18

15

15

17

13

13

26

15

13

12

20

1,342

44.7

-

-

May

11

26

30

16

13

15

100

26

18

17

15

13

12

11

*13

11

9.1

13

9.1

11

8.7

8.2

8.2

7.8

7.4

JL3.

19

9.1

7.0

9.7

10

491.3

15.8

-

-

June

24

60

43

12

9.1

7.4

6.6

7.0

7.4

13

11

6.6

6.3

5.9

7.1

5.6

6.3

5.9

 572 5.2

16

7.0

5.3

22

6.6

5.6

72

14

6.3

5.6

415.0

13.8

-

-

July

5.2

4.9

6.8

6.6

42

11

5.9

7.7

58

7.4

5.9

5.6

8.4

11

5.2

18

7.2

4.6

4.9

106

12

7.0

5.6

5.5

17

117

13

7.0

5.2

5 2

531.1

17.1

-

-

Aug.

4.9

4.9

4.6

4.3

6.1

59

20

6.6

4.9

4.6

4.3

4.0

4.6

5.4

4.0

3.7

4.0

3.4

4.2

4.0

79

8.2

5.6

5.2

4.3

3.4

3.4

15

23

4.9

7.5

321.0

10.4

-

-

Sept.

15

13

4.6

3.7

4.3

115

186

16

7.4

5.9

5.6

5.2

5.2

5.2

13

20

5.9

6.6

4.6

9.5

4.3

4.0

3.7

15

4.0

3.7

4.0

9.8

3.7

lit

507.3

16.9

-

-

Calendar year 1955: Max 872 Mln 1.7 Mean 23.3 Cfsm - In. -

Water year 1955-56: Max 266 Mln 3.4 Mean 24.3 Cfsm - In. -

Peak discharge (base. 500 cfs). Oct. 14 (9 o.m.) 643 cfs (4.13 ft); Feb. 18 (1 p.m.) 519 cfs

(3.68 ft); Sept. 6 (10 p.m.) 551 cfs (3.80 ft).

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for station at Rahway and Second 

River at Belleville.
RAHWAY RIVER BASIN 151

Rahway River at Rahway, N. J.

Location. Lat 40°37'05", long 74°17'00", on left bank 100 ft upstream from St. George 

Avenue Bridge in Rahway, Union County, and 1 mile upstream from Robinsons Branch.

Drainage area.--40.9 sq mi.

Records available. July 1908 to April 1915 (gage heights only), October 1921 to September

Sage. Water-stage recorder and concrete control. Datum of gage Is 8.77 ft above mean 

sea level, datum of 1929. Prior to Aug. 25, 1934, staff gage at site 40 ft downstream 

from Church Street and 2,000 ft downstream from present site at datum 2.77 ft lower.

Average discharge. 35 years (1921-56), 45.8 cfs (unadjusted).

tremes . Maximum discharge during year. 600 cfs Apr. 8 (gage height, 3.20 ft); minimum,

0.7 cfs Aug. 28 (gage height, 1.08 ft).

1921-56: Maximum discharge, 3,140 cfs July 24, 1938 (gage height, 6.35 ft), from 

rating curve extended above 900 cfs by logarithmic plotting; minimum, 0.4 cfs Aug. 2, 

3, 1955 (gage height, 1.05 ft).

arks . Records excellent except those below 10 cfs and those for periods of no gageheight record, which are good. Water for municipal supply diverted from river by 

Rahway and Orange. The flow past this station is affected by diversions by pumpage 

from wells by Orange, South Orange, Short Hills Water Co., and Springfield station 

of Ellzabethtown Water Co.

visions. WSP 781: Drainage area.

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, in cubic feet per second)

1.15

1.2

1.25

1.3

1.4

2.0

3.6

5.8

8.8

17

1.5 

1.7 

2.0 

2.5 

3.0

28

59

125

280

500

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

16

4.6

3.2

2.6

2.4

64

69

42

59

9.5

T.5

5.8

5.5

1T3

472

340

255 

97

57

54

55

26 

15

15

19

2,5

8J8

8.1

8.1

140

155

2,129.2

68.7

-

-

Nov.

52

29

28-

25

6*4

17

20

19

6.8

24

91

52

31

46

25

179

£|f

52

38

34

28 

26

27

20

*17

16

13

12

11

1,221.2

40.7

-

-

Dec.

10

15

11

8.6

10

10

10

9.4

8.8

9.4

8.8

7.1

6.

6.

6.

6.

6. 

6.9

5.8

4.8

4.3

ill

4.3

6.4

8.8

7.5

4.4

4.3

4.3

5.3

4.8

225.9

7.29

-

-

Jan.

5.5

4.8

5.8

7.5

6.4

4.8

5.3

4.8

6.9

15

12

49

23

17

11

6.5

6.5 

4.7

4.8

7.5

7.5

6.4 

4.9

4.1

4.5

3.7

4.2

5.3

5.8

51

44

549.6

11.3

-

-

Feb.

sr1

T4

22

28

68

320

76

39

26

35

37

20

17

19

18

14 

291

257

59

29

24 

19

20

51

76

52

116

56

1,881.5

64.9

-

-

Mar.

27

26

35

34

11

42

59

240

152

56

59

54

34

211

220

72

57 

55

40

45

56

84

130

156

84

72

105

87

78

108

74

2,515

81.1

-

-

Apr.

52

39

34

35

27

26

168

439

298

200

102

61

49

45

44

81

56 

35

29

26

25

25 

25

20

IS

37

32

23

24

32

2,101

70.0

-

-

May

18

19

71

28

28

26

144

166

29

25

21

19

20

16

17

*15

12 

14

15

15

10

9.6

11

9

1±1

8.5

29

22

9.7

10

11

855.4

27.5

-

-

June

57

80

107

28

13

8.5

8.9

7.7

9.4

9.4

a!8

87.0

84.0

aS.O

5.0

7.0

6.4 

4.4

3.6

2*5

9.3

56 

15

85

12

6.6

55

78

15

7 8

665.5

22.2

_

-

July

6.9

4.4

1*6

9.3

T4

40

12

8.1

83

25

9.1

7.3

11

37

11

17

25 

7.9

5.3

6.4

169

68 

7.3

11

8.5

9.9

201

55

12

6.0

5.8

958.8

30.9

-

-

Aug.

4.8

4.5

3.9

4.2

4.8

57

84

13

6.9

4.9

4.5

5.4

4.4

4.3

3.9

2.5

fit

3.9

2.7

129

50 

7.4

4.8

4.0

5.9

2.1

7.6

85e'.i 9 8

513.5

16.6

-

-

Sept.

17

18

15

4.1

2.8

43

~56 231

13

13

5.7

4.7

7.5

4.4

3.4

39

8.0 

a7.5

aS.O

a4.0

a6.0

5.6 

5.2

12

6.9

2.8

10

8.8

2.6

^ P

559.8

18.7

-

-

Calendar year 1955 { Max 1,670 Mln 0.7 Mean 40.5 Cfsm - In.

Water year 1955-56 : Max 472 Mln 2.O Mean 38.2 Cfsm - In.

Peak discharge (base. 600 cfs). Apr. 8 (6 p.m.) 600 cfs (3.20 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station at Springfield.
152 RAHWAY RIVER BASIN

Robinsons Branch Rahway River at Railway, N. J.

Location. Lat 40°36'20", long 74°17<57", on right bank of Milton Lake 2,000 ft upstream 

from Madison Avenue In Rahway, Union County, and 1% miles upstream from mouth.

Drainage area. 21.6 sq mi.

Records available. September 1939 to September 1956.

Oage. Water-stage recorder above Milton Lake Dam. Datum of gage is 19.99 ft above mean 

sea level (New Jersey Geological Survey benchmark).

Average discharge. 17 years, 25.1 cfs (unadjusted).

Extremes. Maximum discharge during year, 515 cfs Apr. 8 (gage height, 4*68 ft); no flow 

for many days.

1939-56: Maximum discharge, 1,490 cfs Mar. 13, 1953 (gage height, 5.36 ft), from 

rating curve extended above 750 cfs on basis of laboratory rating; no flow at times.

Remarks. Records good except those below 20 cfs, which are fair, and those for period of 

no gage-height record, which are poor. Water for municipal supply diverted by Middlesex Water Co. from reservoir, 3,500 ft above station.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

0.5

.1

0

ff

O

.1

3.0

6.7

8.0

6.0

8.0

6.7

5.6

8.3

132

317

240

90

31

16

12

8.0

5.6

5.6

4.6

3.8

3.6

4.6

4.6 

37

90

1,060.6

34.2

5.21

Nov.

35

16

12

9.4

9.4

6.7

5.6

BTT

9.4

9.4

36

 38

19

22

22

146

ToTf

35

22

25

16

16

16

16

14

12

9.4

9.4

5.6

5.6

710.6

23.7

5.06

Dec.

5.6

576

5.6

4.6

3.8

3.5

3.5

3.5

3.0

3.0

3.0

2.5

2.5

2.5

2.0

2.0

1.5

1.0

.5

.5

0

.5

1.0

1.5

2.0

2.0

1.5

1.0

1.0

1.0 

1.0

72.2

2.33

5.86

Jan.

1.0

1.0

1.0

1.5

1.0

1.0

1.0

1.0

1.5

1.8

1.8

3.0

4.6

4.6

4.6

4.6

2.6

1.2

1.2

1.8

1.2

1.2

1.8

1.2

1.8

2.4

.8

Tff

1.2

5.0

6, 7

65.9

2.13

6.09

Feb.

8.0

53

19

22

62

227

84

31

22

22

47

25

16

14

12

9.0

255

205

62

22

12

8.0

8.0

22

48

22

107

55

1,525.0

52.6

6.09

Mar.

22

16

16

16

14

16

29

T?4" 187

37

22

16

14

172

170

47

19

22

14

12

22

55

126

149

64

64

74

42

41

68 

31

1,721

55.5

6.22

Apr.

22

16

14

14

9.0

9.0

ISO

393 75B~

143

47

22

16

12

12

28

16

16

14

12

9.4

8.0

OJ

8.0

8.0

9.4

12

9.4

12

9.4

1,326.6

44.2

5.96

May

9.4

9.4

14

16

12

9.4

30" 81

14

9.4

9.4

9.4

9.4

8.0

6.7

*3.8

3.0

3.0

1.8

1.8

1.2

.1

0

ff

0

0

1.9

.1

0

0 

0

264.2

8.52

5.89

June

0

3.0

19

12

6.7

6.7

5.6

4.6

3.0

3.0

1.2

.2

.1

0

0

0

0

0

0

0

.2

.1

0

.5

0

0

2.1

.8

.4

0

69.2

2.31

5.83

July

0

0

.2

2.3

1.2

.8

.5

2.9

2.9

2.3

1.7

1.2

1.2

1.2

2.3

2.3

2.3

1.7

1.2

40

37

9.1

3.6

3.6

3.6

45

5.3

3.6

2 g

202.3

6.53

5.72

Aug.

2.9

2.3

1.2

.5

0

4.2

11 "5.3

3.6

2.3

1.7

1.2

1.2

.8

.5

.2

.5

.3

0

0

5.9

5.3

5.3

4.4

3.6

2.9

2.3

2.3

3.6

3.6

2.9

81.8

2.64

6.06

Sept.

3.3

3.0

2.3

1.7

1.7

3.4

9.1

57?

3.6

3.6

2.9

2.9

2.9

1.7

1.2

2.3

2.3

1.8

1.2

.8

.2

.5

.5

1.2

.5

.5

.2

.5

.5

.1

61.7

2.06

5.59

Calendar year 1955: Max 820 Min 0 Mean 19.8 t 5.65

Water year 1955-56: Max 393 Min 0 Mean 19.6 tS.80

Peak discharge (base. 450 cfs).--Apr. 8 (5 p.m.) 515 cfs (4.68 ft). 

* Discharge measurement made on this day.

t Diversion, In cubic feet per second, by Middlesex Water Co. from reservoir above station. 

Note. No gage-height record Dec. 6 to Jan. 9; discharge estimated on basis of recorded range In 

stage and records for Rahway River stations.
RARITAN RIVER BASIN 153

South Branch Raritan River near High Bridge, N. J.

Location. Lat 40 0 40'40", long 74°52'51", on left bank 1 mile upstream from High Bridge, 

Hunterdon County, and 4 miles upstream from Spruce Run.

Drainage area. 65.3 sq mi.

Records available. February 1919 to September 1956.

Gage. Water-stage recorder. Concrete control since Sept. 28, 1930. Datum of gage is 

282.10 ft above mean sea level (New Jersey Geological Survey benchmark). Prior to 

Sept. 30, 1921, reference point at same site and datum.

Average discharge.--36 years (1920-56), 117 cfs.

Extremes. Maximum discharge during year, 2,070 cfs Oct. 15 (gage height, 9.81 ft); minimum, 19 cfs Jan. 8, result of freezeup; minimum daily, 32 cfs Aug. 20.

1919-56: Maximum discharge, 5,160 cfs Mar. 15, 1940 (gage height, 11.78 ft), from 

rating curve extended above 1,600 cfs by logarithmic plotting; minimum, 6.6 cfs Oct. 11, 

1930; minimum daily, 17 cfs Jan. 8, 1940.

Remarks. Records good except those for periods of ice effect, which are fair. Slight 

diurnal fluctuation caused by small powerplant above station.

Cooperation. Water-stage Co"! recorder inspected by employee of Taylor-Wharton Iron & Steel 

Revisions (water years). WSP 601: 1924. WSP 781: Drainage area.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

5.8 

6.0 

6.5 

7.0

31

55

147

281

460

990

1,350

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

67

58

52

50

48

142

138

160

119

84

72

66

61

599

1.510

924

670

403

313

260

231

203

185

178

170

158

147

138

134

287 

252

7,679

248

3.80

4.37

Nov.

168

145

149

182

147

132

129

145

127

123

272

172

143

165

163

561

303

214

188

178

170

165

L49

145

132

127

123

123

109

101

4,950

165

2.53

2.82

Dec.

103

103

*107

111

113

103

94

92

94

91

35

85

82

82

75

70

70

65

70

61

61

65

70

75

80

70

60

55

60

55 

50

2,459

79.3

1.21

1.40

Jan.

55

50

55

60

61

61

58

4558"

85

87

110

109

82

70

68

67

59

61

62

56

56

56

51

48

45

45

47

50

124 

125

2,066

66.6

1.02

1.18

Feb.

68

95

214

134

129

255

665

§7?

185

147

145

228

154

117

113

111

100

458

389

239

172

127

113

101

181

218

140

175

143

5,588

193

2.96

3.18

Mar.

117

123

147

127

113

115

123

286

234

163

152

154

138

3|i

357

225

165

158

132

145

147

152

170

188

156

170

214

211

206

231 

245

5,535

179

2.74

3.15

Apr.

239

263

251

269

231

192

389

480

484

417

337

284

254

266

406

297

239

222

200

185

178

175

168

149

172

165

147

140 2T4"

7,933

264

4.04

4.52

May

149

145

206

156

149

134

256" 376

163

156

143

136

132

123

115

109

101

105

101

98

92

87

100

107

89

82

96

111

89

78 78-

4,012

129

1.98

2.28

June

*96

122

384

156

109

96

78

77

75

109

120

78

68

64

64

54

58

56

50

48

54

61

52

60

52

48

57

80

55

il

2,528

84.3

1.29

1.44

July

45

45

58

59

92

91

68

56

76

113

64

54

51

60

54

48

52

46

4!IT

116

92

67

52

47

45

~SS 224

66

52 

48

2,114

68.2

1.04

1.20

Aug.

45

43

41

40

41

45

60

47

41

42

34

34

35

45

41

35

35

33

33

32.

62

58

42

39

35

35

34

34

35

35 

2S.

1,287

41.5

0.636

0.73

Sept.

96

39

157

32

66

226

347

T57

80

67

61

58

55

52

51

78

66

61

52

54

46

47

47

51

50

43

47

45

2,368

78.9

1.21

1.35

Calendar year 1955: Max 1,840 Min 19 Mean 116 Cfsm 1.78 In. 24.19

Water year 1955-56: Max 1,310 Min 32 Mean 133 Cfsm 2.04 In. 27.62

Peak discharge {base. 1.000 efs). Oct. 15 (2 a.m.) 2.070 efs (9.81 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 17-19, Dec. 22 to Jan. 4, Jan. 26-29.
154 RARITAN RIVER BASIN

South Branch Rarltan River at Stanton, N. J.

Location. Lat 40°34'21", long 74°52'10", on right bank at downstream side of highway 

bridge near Stanton railroad station, Readlngton Township, Hunterdon County, half 

a mile upstream from Prescott Brook.

Drainage area. 147 sq ml.

Records available. July 1903 to December 1906, July 1919 to September 1956.

. Water-stage recorder. Datum of gage Is 125.01 ft above mean sea level, datum of 

"929. Prior to Aug. 17, 1925, chain gage on downstream side of highway bridge at same 

site and datum.

Average discharge. 36 years (1920-56), 243 efs.

Extremes. Maximum discharge during year, 11,700 cfs Oct. 14 (gage height, 12.55 ft), from 

rating curve extended above 6,400 cfs as explained below; minimum, 46 cfs Sept. 11 

(gage height, 2.19 ft); minimum daily, 48 cfs Aug. 18, 19.

1903-6, 1919-56: Maximum discharge, 18,000 cfs Aug. 19, 1955 (gage height, 15.22 

ft), from rating curve extended above 6,400 cfs on basis of computation of flow over 

Clinton Dam 6.5 miles upstream at gage height 10.72 ft, contracted-opening determination 1.7 miles downstream, and slope-area determination 0.4 mile downstream at gage 

height 15.22 ft, adjusted to present site; minimum, 9 cfs Nov. 7, 1931; minimum dally, 

20 cfs Sept. 22, 1939.

Remarks. Records good except those for periods of Ice effect, which are fair. Slight 

diurnal fluctuation caused by small powerplants above station and occasional regulation 

at low flow by ponds above station.

Revisions (water years). WSP 561: Drainage area. WSP 851: 1935(M).

Rating table, water year 1955-56, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.1 

2.5 

3.0 

3.5

38

110

255

460

4.5 

6.0 

8.0

1,020 

2.OOO 

3,960

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

132 

110

97

91

ft

258

286

292 

235

160

137

122

112

2,410

5.470

2,150

1,450

924

706

575

505 

442

397

379

562

330

306

283

272

496

5O2

18,082

585

5.97

4.57

Nov.

518 

276

266

1

322

262

235

255

262 

235

221

507

322

262

285

294

757

575

*379

362

358

342 

334

302

290

269

262

245

235

221

205

9,431

314

2.14

2.59

Dec.

192 

195

208

213

215

199

189

174 

166

166

160

160

150

140

140

150

13O

120

130

120

110 

120

130

140

140

130

110

100

*110

100

90

4,582

148

1.01

1.16

Jan.

100 

90

100

110

110

110

110

90 

120

160

180

205

221

160

134

117

110

110

100

110

90 

100

90

85

80

80

75

7O

80

472 3"2~6"

4,095

152

0.898

1.04

Feb.

*160 356"

495

269

308

727

1.440

322

272

252

384

283

218

211

199

189

929

726

446

530 

269

241

218

379

472

286

388

310

11,557

599

2.71

2.92

Mar.

255 

252

302

276

241

245

262

698 

475

354

322

330

310

776

62TT

460

402

370

350

322

530 

550

433

510

397

490

580

555

520

560

535

12,868

415

2.82

3.26

Apr.

485 

500

446

451

415

358

700

1,010 

960

960

816

658

57O

520

555

792

560

460

428

592

366 

550

546

554

302

354

334

298

?4"2~ 280 

15,422

514

3.50

3.90

May

*314 

286

438

322

306

269

816

338

318

294

272

272

258

248

228

215

205

205

195

189 

183

202

195

172

157

192

228

172

142 

ISS

8,214

265

1.80

2.08

June

177 

245

296" 774

208

172

160

132 

137

568

344

199

134

152

124

110

110

106

95

91

106 

115

102

166

104

89

112

142

100

85

5,227

174

1.18

1.32

July

81 

80

*97

110

195

177

129

106 

185

211

120

100

102

112

100

104

104

7O78"

80

238 

174

122

97

91

85

322 195"

159

100 

87

5,991

129

0.878

1.01

Aug.

81 

76

»67

67

68

76

95

81 

68

63

56

52

55

68

65

56

53

484"§"

50

til74

65

56

55

55

56

110

67 

104

2,180

70.3

0.478

0.55

Sept.

245 

195

218

124

102

290

665

19T 

139

*106

85

95

89

85

83

155

117

104

87

95

87 

74

80

91

85

74

70

S5

85

78

4,076

156

0.925

1.03

Calendar year 1955: Max 8,060 Mln 22 Mean 268 Cfsm 1.82 In. 24.70

Water year 1955-56: Max 3,470 Mln 48 Mean 272 Cfsm 1.85 In. 25.23

Peak discharge (baae. 2.600 cfa).~Oct. 14 (10:30 p.m.) 11,700 cfs (12.55 ft)j Feb. 6 (10 p.m.) 

2,650 cfs (6.78 ft).

* Discharge measurement made on this day. 

Kote. Stage-discharge relation affected by Ice Dec. 11 to Jan. 11, Jan. 17-29.
RARITAN RIVER BASIN 155

Walnut Brook near Flemington, N. J.

Location.--Lat 40°30'57", long 74°53'00", on right bank l£ miles northwest of Flemington, 

Hunterdon County, and 3 miles upstream from mouth.

Drainage area. 2.24 sq mi.

Records available. April 1936 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 267.33 ft above mean 

sea level, unadjusted.

Average discharge. 20 years, 3.25 cfs.

Extremes. Maximum discharge during year, 416 cfs Oct. 14 (gage height, 3.03 ft), from 

rating curve extended above 120 cfs as explained below; no flow Aug. 17-20.

1936-56: Maximum discharge, 645 cfs July 18, 1945 (gage height, 3.30 ft), from 

rating curve extended above 120 cfs on basis of logarithmic plotting; no flow at times.

Remarks. Records good except those below 1 cfs and those for periods of ice effect or no 

gage-height record, which are fair.

Rating table, water year 1955-56, except periods of ice effect (gage

height, In feet, and discharge, In cubic feet per second)

(Stage below crest of control Aug. 17-20)

Nov. 1 to Sept. 30

.85 

2.1

1.4

1.5 

1.7 

1.9 

Z.I

1.01

1.05

1.1

1.15

l.Z

.04

.18 

.44 

.85

1.7 

1.9

2.3 

4.7 

8.4

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Zl

Z2

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sra

In.

Oct.

0.27

.22

.18

.18

.14

 1.4

1.2

2.2

1.4

1.2

1.0

1.0

.76

M

40

18

10

6.8

5.2

4.1

3.5

3.1

2.5

2.5

2.3

2.1

1.8

1.7

1.6 

3.9

2.9

187.15

6.04

2.70

3.11

Nov.

2.5

2.3

2.1

2.1

1.9

1.7

1.6

 1.6

1.4

TT7

7.4

3.3

2.9

3.8

3.4

~7.5 16

5.3

4.7

4.4

5.0

4.4

4.1

3.5

3.3

3.1

2.7

2.7

2.1

1.9

110.4

3.68

1.64

1.83

Dec.

1.7

1.6

1.4

1.4

1.4

1.3

1.3

1.3

1.2

1.1

.95

.85

.85

.76

.76

.67

.76

.67

.67

b.59

b.51

b.45

.38

.38

.51

.51

.38

b.33

b.33 

b. 36

b.33

25.70

0.829

0.370

0.43

Jan.

bO.30

b.28

b.32

b.36

b.40

b.36

b.33

a. 30

a. 40

1.7

.95

3.5

3.2

1.9

1.3

1.2

1.1

al.O

a. 95

al.O

.76

.76

.76

.67

.67

.59

b.59

b.51

b.60 

~3.2 15

44.96

1.45

0.647

0.75

Feb.

2.1

18

8.2

5.8

9.2

26

22

7.1

5.6

4.7

5.3

6.7

4.7

3.5

4.4

3.5

3.3

37

15

10

6.7

4.7

3.5

3.1

8.0

5.3

4.1

14

5.9

255.4

8.81

3.93

4.24

Mar.

4.4

4.7

4.4

4.7

*5.8

4.1

8.2

37

11

8.4

7.1

5.9

5.6

29

13

8.4

7.5

5.9

5.3

4.7

4.7

5.3

9.4

11

8.4

15

22

15

14

17

11

315.9

10.2

4.55

5.24

Apr.

8.9

7.1

6.3

5.6

*4.7

4.1

18

25

34

IT

11

7.9

6.3

5.3

5.9

13

6.7

5.6

4.7

4.1

3.5

3.1

2.9

2.5

2.3

2.9

2.5

2.3

2.1

3.3

228.6

7.62

3.40

3.80

May

2.1

2.7

3.8

2.9

2.7

3.5

*17~5.9

4.7.

4.1

3.3

3.1

2.7

2.3

2.1

1.9

1.6

1.4

1.3

1.2

1.1

.95

.95

.85

.76

.67

.76

.76

.59

.51

.59

78.79

2.54

1.13

1.31

June

0.67

2.6

10

2.5

 1.7

1.4

1.2

.95

.85

.85

.85

.67

.51

.51

.38

.44

.38

.32

.27

.27

.38

.38

1.3

1.6

.44

.32

.59

.38

.27

.22

33.20

1.11

0.496

0.55

July

0.18

.18

.22

.18

.27

.32

.27

.18

.27

.18

.11

.11

.18

.18

.11

.11

.11

.06

756

.06

1.0

.32

.22

.18

.14

.11

.24

.18

.11

.08 

.06

5.98

0.193

0.086

0.10

Aug.

0.04

.02

*.02

.01

.02

.04

.06

.02

.01

.01

.01

.01

.01

.02

.01

.01

0

o

0

0

.51

TIT

.06

.04

.02

.02

.01

.01

.02

.01

.02

1.15

0.037

0.017

0.02

Sept.

2.9

.97

.38

.27

.18

.78

.67

.38

.27

*.18

.18

.IS

.18

.14

.11

.18

.18

.27

.18

.22

.18

.14

.11

.18

.11

.11

.08 Toe

.08 

08

9.95

0.332

0.148

0.17

Calendar year 1955: Max 86 Min 0 Mean 3.32 Cfsm 1.48 In. 2O.12

Water year 1955-56: Max 64 Min 0 Mean 3.54 Cfsra 1.58 In. 21.55

Peak discharge (base. 1OO efs).--oet. 14 (4 p.m.) 416 cfs (3.03 ft). 

* Discharge measurement made on this day. 

a Ho gage-height record; discharge estimated on basis of weather records and records for Neshanlc 

River at Reaville.

b Stage-discharge relation affected by Ice.
156 RARITAN RIVER BASIN

Neshanic River at Reaville, N. J.

Location. Lat 40°28'18", long 74°49'42", on left bank 50 ft downstream from highway 

bridge, half a mile southwest of Reaville, Hunterdon County, ij miles downstream from 

Walnut Brook, and 2 miles upstream from Back Brook.

Drainage area. 25.7 sq mi.

Records available. June 1930 to September 1956.

Gage.--Water-stage recorder. Concrete control since Sept. 26, 1935. Datum of gage is 

109.46 ft above mean sea level, unadjusted.

Average discharge. 26 years, 35.4 cfs.

Extremes. Maximum discharge during year, 5,990 cfs Oct. 14 (gage height, 10.81 ft), from 

rating curve extended as explained below; minimum, 0.4 cfs Dec. 16, result of freezeup.

1930-56: Maximum discharge, 10,300 cfs July 18, 1945 (gage height, 12.33 ft, from 

high-water mark in gage house), from rating curve extended above 1,700 cfs on basis of 

slope-area determination made 0.7 mile downstream at gage height 11.90 ft, adjusted to 

present site; minimum, 0.2 cfs Peb. 2, 1931, Aug. 27-30, 1934, June 26, 1935, Feb. 15, 

1940.

Remarks. Records good.

Revisions (water years).--WSP 1332: 1945(M).

Rating tables, water year 1955-56 (gage height, in feet, and dispharge, 

in cubic feet per second)

Nov. 1 to Sept. 30

2.3

2.4

2.5

2.6

2.7 

2.9

1.8

3.6

6.4

10

15

29

3.2 

3.5 

4.0 

5.0 

6.2

6O

1O9

232

590

1,130

2.2

2.3

2.4

0.8 

2.0 

4.0

2.5

2.6

6.7

10

Note.--Same as preceding table a" - - -

above 2.6 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

3.1

2.9

2.7 

2.6

2.2

12

10

12

11

6.7

5.5

4.9

4.6

1,130

510

190

109

71

53

41

34

27

24

23

21

18

16

14

13

42

28

2,444.2

78.8

3.07

3.54

Nov.

20

17

16 

16

13

13

12

*14

12

U

59

30

25

28

24

72

46

33

33

34

36

33

29

27

23

21

20

18

14

12

761

25.4

0.988

1.10

Dec.

11

11

12 

13

T3

11

9.4

9.4

9.4

8.2

7.9

7.2

6.8

6.4

6.3

6.4

5.5

5.5

5.2

4.2

4.0

4.2

4.5

4.9

5.5

4.9

3.9

3.3

3.3

3.5

3.1

213.9

6.90

0.268

0.31

Jan.

3.1

2.7

T7T 

3.7

4.0

4.0

3.5

3.1

4.4

12

12

39

27

19

14

11

9.6

9.8

9.2

8.9

7.8

7.5

6.9

6.6

5.8

5.5

4.7

4.5

5.8

~48 213

519.2

16.7

0.650

0.75

Feb.

23

250

78 

38

96

357

210

64

52

48

52

68

46

36

43

34

31

469

144

90

60

41

35

28

67

53

41

138

58

2,750

94.8

3.69

3.98

Mar.

44

46

41 

37

30

33

59

378

117

77

66

55

50

426

139

85

77

58

43

76

56

58

101

132

94

174

247

156

159

181

122

3,417

110

4.28

4.94

Apr.

90

73

61

55

*44

37

153

489

229

124

84

64

53

45

50

96

56

44

38

33

29

26

24

21

19

25

21

18

16

TH io

2,135

71.2

2.77

3.09

May

14

14

24

17

16

14

134

44

33

28

23

20

19

16

13

12

11

11

9.8

8.6

7.9

7.6

7.6

7.0

6.1

5.8

6.1

6.4

4.9

479

5.8

551.5

17.8

0.693

0.80

June

8.6

22

Ift

14

11

9.0

7.6

7.0

7.3

11

6.1

5.5

4.7

4.2

3.7

3.7

3.3

2.9

2.7

3.5

4.2

3.7

53

6.7

4.7

38

12

6.4

4.7

377.2

12.6

0.490

0.55

July

4.0

4.2

*4.2 

3.5

4.5

4.7

4.2

3.5

5.6

4.2

3.1

2.5

2.6

3.7

2.7

2.5

2.5

2.0

1.7

1.9

22

6.8

4.7

4.2

4.0

3.3

4.2

3.7

2.9

2.3

2.2

128.1

4.13

0.161

0.19

Aug.

1.9

1.7

1.5 

1.4

1.5

2.4

3.7

2.3

1.7

1.4

1.4

1.2

1.3

1.4

1.3

1.2

1.2

1.1

1.0

T75

9.6

3.7

2.0

1.7

1.4

1.4

1.4

1.3

1.8

1.7

1.5

59.1

1.91

0.074

0.09

Sept.

2.3

6.1

2!o

1.7

2.2

5.2

1.9

1.4

*1.2

1.2

1.2

1.2

1.2

1.2

1.9

1.7

1.4

1.3

1.3

1.4

1.2

1.2

1.4

1.5

1.3

1.1

2.6

3.4

2.0

57.6

1.92

0.075

0.08

Calendar year 1955: Max l,57o Min 0.3 Mean 37.8 Cfsm 1.47 In. 19.97

Water year 1955-56: Max 1,130 Min 1.0 Mean 36.6 Cfsm 1.42 In. 19.42

Peak discharge (base. 1,600 cfs).--Oct. 14 (6:30 p.m.) 5,990 cfs (10.81 ft). 

* Discharge measurement made on this day.
RARITAN RIVER BASIN 157

North Branch Rarltan River near Par Hills, N. J.

Location. Lat 40°42'27", long 74°38'20", on left bank 75 ft upstream from Ravine Lake Dam, 

2 miles north of Par Hills, Somerset County, and 2 miles upstream from Peapack Brook.

Drainage area.--26.2 sq ml.

Records available. February 1922 to September 1956.

Gage. Water-stage recorder above masonry dam. Datum of gage Is 224.49 ft above mean sea 

level (New Jersey Geological Survey benchmark). Prior to June 18, 1925, hook gage In 

stilling box at left end of dam at same datum.

Average discharge. 34 years, 47.9 cfs.

Extremes. Maximum discharge during year, 2,710 cfs Oct. 14 (gage height, 5.33 ft), from 

rating curve extended above 500 cfs by weir formula; minimum, 7.3 cfs Aug. 20.

1922-56: Maximum discharge, 3,410 cfs Mar. 15, 1940 (gage height, 5.85 ft), from 

rating curve extended above 500 cfs by weir formula; no flow at times when Ravine Lake 

was filling.

Stage of 7.6 ft, from floodmark, occurred July 23, 1919 (discharge, about 7,000 cfs).

Remarks. Records good except those for period when waste gate was open, which are fair. 

Figures of discharge Include 2 cfs diverted by small turbine at dam Oct. 1-12, July 1 

to Sept. 30 and 1 cfs diverted Oct. 13.

Revisions (water years). WSP 781: Drainage area. WSP 851: 1938. WSP 871: 1939.

Rating table, water year 1955-56, except period when waste gate was open (gage 

height, In feet, and discharge, In cubic feet per second)

1.8

1.9 

Z.I

2.2

2.3

3.7

8.4

22

30

45

2.4 

2.6 

2.9 

3.3

156

321

600

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

23

20

18

16

16

37

47

54

41

31

27

27

26

548

367

284

194

129

111

94

79

69

66

66

66

63

63

60

57

212

108

3,019

97.4

3.72

4.29

Nov.

82

72

79

94

63

57

60

60

54

54

111

63

57

66

60

-94 154

72

72

72

72

79

75

72

69

63

63

60

54

52.

2,155

71.8

2.74

3.06

Dec.

52

52

52

54

54

49

47

45

45

45

41

41

39

37

41

36

36

37

37

30

26

30

33

37

39

34

30

27

29

30

26

1,211

39.1

1.49

1.72

Jan.

29

24

28

30

29

30

29

23

28

39

41

57

54

39

33

32

31

28

27

30

26

26

27

21

21

22

20

19

2T

74

4T

982

31.7

1.21

1.39

Feb.

28

5T

75

43

50

111

~66 217

49

47

47

72

49

41

41

41

39

163

107

72

57

47

45

41

90

92

49

69

60

1,959

67.6

2.58

2.78

Mar.

49

5T

66

66

60

60

63

134

86

72

72

72

66

154

TTT

86

79

72

66

75

66

69

72

82

69

75

94

94

94

116

111

2,505

80.8

3.08

3.56

Apr.

Ill

111

107

111

102

90

180

217

1ST

176

*147

129

116

107

120

191

124

102

98

90

86

7S

79

75

72

82

75

69

66

94

3,397

113

4.31

4.82

May

66

60

86

66

63

66

~J? 183

57

63

60

52

49

*49

47

45

43

45

45

41

39

39

37

37

34

34

41

41

34

32

*S3

1,659

53.5

2.04

2.35

June

39

36

66

41

33

31

30

27

24

30

34

28

24

24

21

18

19

19

*17

16

19

24

19

24

20

15

19

21

16

12

766

25.5

0.973

1.09

July

13

13

15

17

27

27

21

16

26

31

19

15

14

18

14

13

16

*13

11

TT

32

27

19

15

13

12

96

32

21

16

14

647

20.9

0.798

0.92

Aug.

13

12

11

10

10

14

26

16

11

10

9.3

8.8

9.3

13

13

10

8.8

8.3

7.8

7.5

24

21

13

10

9.3

8.3

8.3

8.3

8.8

9.3

19

367.9

11.9

0.454

0.52

Sept.

27

84

56

25

16

158

84

34

26

22

19

19

18

17

17

35

31

26

21

22

18

15

15

17

16

13

13

14

e50

e50

978

32.6

1.24

1.39

Calendar year 1955: Max 902 Mln 2.5 Mean 49.6 cfsm 1.89 In. 25.70

Water year 1955-56: Max 548 Mln 7.3 Mean 53.7 Cfsm 2.05 In. 27.89

Peak discharge (base, 700 cfs). --Oct. 14 (9 p.m.) 2,710 cfs (5.33 ft).

* Discharge measurement made on this day.

e Waste gate open.
158 RARITAN RIVER BASIN

Lamington (Black) River near Pottersville, N. J.

Location. Lat 40°43'39", long 74°43'50", on right bank 1 mile upstream from highway bridge 

in Pottersville, Somerset County, and 8 miles upstream from Roclcaway Creek.

Drainage area. 32.8 sq mi.

Records available. November 1921 to September 1956. Prior to October 1952, published as 

Black River near Pottersville.

Gage. Water-stage recorder. Concrete control since July 1, 1937. Datum of gage Is 

284.14 ft above mean sea level (New Jersey Geological Survey benchmark). Prior to 

June 27, 1922, chain gage on downstream side of highway bridge at Pottersville, 1 mile 

downstream at different datum.

Average discharge. 35 years, 56.3 cfs.

Extremes. Maximum discharge during year, 1,420 cfs Oct. 14 (gage height, 4.41 ft), from 

rating curve extended above 380 cfs as explained below; minimum, 15 cfs Aug. 20 (gage 

height, 1.57 ft).

1921-56: Maximum discharge, 2,630 cfs Mar. 15, 1940 (gage height, 5.34 ft), from 

rating curve extended above 380 cfs on basis of slope-area determination at gage height 

4.71 ft; minimum, 1.3 cfs Oct. 4, 1930.

Remarks. Records excellent except those for periods of Ice effect or no gage-height record, 

which are good.

Revisions (water years).--WSP 741: 1932. WSP 781: Drainage area. WSP 1332: 1940(M).

Rating table, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.5 

1.7 

2.0

2.3 

2.6 

3.0

120

205

360

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Ocb.

46 

42

38

33

j!9

63

61

67

60

55

49

45

41

284

295

332

332

262

208

169

140

120

104

95

89

84

78

75

73

116 

108

3,593

116

3.54

4.07

Nov.

102 

1O2

97

97

88

80

378

76

75

71

104

86

82

88

86

125

113

99

97

93

89

86

80

78

73

71

68

68

60

50

2,562

85.4

2.60

2.90

Dec .

54 

54

55

56

58

58

52

49

49

46

41

45

44

42

41

b36

b38

b40

40

30

30

33

a37

a40

a42

a37

332

328

331

328 

32£

1,292

41.7

1.27

1.46

Jan.

a29 

a25

327

a29

a30

30

30

24

31

42

49

58

63

56

52

49

41

33

32

35

33

32

32

27

26

25

24

23

24

fl

1,142

36.8

1.12

1.29

Feb.

15 

60

84

61

71

113

193

115

95

91

78

82

70

61

61

55

49

121

115

99

88

68

61

58

80

80

71

76

66

2,367

81.6

2.49

2.68

Mar.

60 

61

61

60

58

58

*60

95

82

76

76

73

66

104

102

88

66

b60

54

55

b68

71

78

93

76

82

95

95

93

99

106

2,371

76.5

2.33

2.69

Apr.

106 

108

108

108

106

99

138

157

172

181

166

145

132

120

120

148

130

125

120

108

97

91

88

82

78

82

82

78

15

93

3,443

115

3.51

3.90

May

80 

80

93

84

82

76

125

97

91

89

82

75

70

64

61

56

54

52

52

49

48

46

46

45

44

42

46

49

45

44

41

2,008

64.8

1.98

2.28

June

42 

56

"66 104

60

55

48

41

39

45

49

39

34

30

27

26

26

*25

24

23

25

27

25

28

24

23

28

27

25

24

1,115

37.2

1.13

1.26

July

23 

22

26

26

45

38

32

30

43

40

31

28

27

28

25

26

26

22

22

21

52

39

31

29

28

33

147

63

45

40 

34

1,122

36.2

1.10

1.27

Aug.

29 

24

22

19

19

22

28

22

22

21

20

18

17

19

19

18

18

17

16

15

32

25

23

22

22

21

19

17

17

17 

25

645

20.8

0.634

0.73

Sept.

30 

45

56

54

56

112

154

84

76

73

64

54

45

38

34

46

38

36

34

36

33

30

28

28

26

24

23

24

24

24

1,429

47.6

1.45

1.62

Calendar year 1955: Max 606 Mln 4.0 Mean 59.6 Cfsm 1.82 In. 24.67

Water year 1955-56: Max 332 Mln 15 Mean 63.1 CTsm 1.92 In. 26.15

Peak discharge (base. 375 cfs). 0

(3.29 ft); Sept. 6 (5 p.m.) 628 cfs

=t. 14 (4 p.m.) 1,420 cfs (4.41 ft) j July 27 (5:30 a.m.) 514 cfs 

;3.48 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of weather records and records for North 

Branch Raritan River near Par Hills.

b Stage-discharge relation affected by Ice.
RARITAN RIVER BASIN 159

North Branch Raritan River near Raritan, N. J.

Location. Lat 40°34'10", long 74°40'45", on right bank 400 ft upstream from U. S. High- 

 way 202, li miles upstream from confluence with South Branch, and 2 miles west of 

Raritan, Somerset County.

Drainage area. 190 sq mi.

Records available . June 1923 to September 1956. Prior to October 1943, published as

"at Milltown."

. Water-stage recorder. Concrete control since Sept. 1, 1936. Datum of gage Is 

0.43 ft above mean sea level, datum of 1929. Prior to Oct. 17, 1936, staff gage 

at site 30 ft downstream at same datum.

Average discharge. 33 years, 301 cfs.

Extremes.- -Maximum discharge during year, 17,300 cfs Oct. 15 (gage height, 12.68 ft, from 

high -water mark in gage house), from rating curve extended above 6,000 cfs as explained 

below; minimum, 47 cfs Aug. 19, 20 (gage height, 2.58 ft).

1923-56: Maximum discharge, 20,700 cfs Aug. 19, 1955 (gage height, 13.59 ft, from 

high-water mark in gage house), from rating curve extended above 6,000 cfs on basis of 

slope-area determination at gage height 12.16 ft and contracted-opening determination 

at gage height 13.59 ft; minimum observed, about 3 cfs Nov. 28, 1930 (gage height, 

1.72 ft).

Remarks . Records excellent except those for periods of ice effect, which are good. 

Revisions (water years ). WSP 801: 1928(M), 1933(M).

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge. In cubic feet per second)

2.5

2.6 

2.8 

3.0 

3.4

32

52

111

2O1

485

4.O

5.0 

7.0 

9.0

1,110

2,260

4,010

6,900

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

140

119

108

97

9±

235

308

367 

274

186

162

 144

132

3,010

6.750

3,490

2,150

1,090

832

665

566

477

421

405

382

343

314

294

287

1,100

653

25,600

826

4.35

5.01

Nov.

437

390

390

494

366

321

314

343 

294

274

751

413

351

421

382

 1.550

756

503

469

469

453

437

366

359

321

308

294

287

13,015

434

2.28

2.55

Dec.

23O

225

236

248

242

225

207

196 

196

191

167

b!65

162

162

167

132

140

148

144

b!25

bllS

b!25

b!30

b!40

b!50

b!50

bllS

bllO

bllS

bllO

blOS

5,073

164

0.863

0.99

Jan.

bllO

blOO

blOO

101

123

123

119

104 

123

172

191

225

260

201

167

157

144

127

b!20

b!25

bllO

bllS

bllO

blOO

b95

b98

b90

b86

b95

527

395

4,713

152

0.800

0.92

Feb.

186

487

628

308

402

872

2.17O

"547 

382

351

336

469

343

267

274

274

230

1,890

984

605

437

314

301

248

551

709

390

713

445

16,113

556

2.93

3.15

Mar.

328

336

359

343

294

308

351

1.550 

675

469

413

397

366

1,490

770

530

485

437

351

461

405

455

615

812

585

854

1,120

822

748

885

728

18,720

604

3.18

3.66

Apr.

585

575

55O

512

477

413

928

2.260 

1,170

940

770

655

575

521

557

973

686

550

477

457

405

582

559

343

321

359

359

508

294

429

18,150

604

5.18

5.55

May

308

287

477

336

314

280

967

453 

359

345

321

294

280

*260

242

230

215

215

215

201

186

176

181

176

157

152

181

207

157 

152

152

8,468

275

1.44

1.66

June

176

181

568

260

201

176

167

152 

152

157

181

140

125

108

101

97

97

94

87

84

94

115

119

184

111

94

182

157

119 

94

4,551

152

0.800

0.89

July

84

78

81

94

186

176

152

108 

254

287

156

104

108

152

94

90

101

84

72

72

282

201

127

104

97

37

654

274

181 

127

111

4,698

152

0.800

0.92

Aug.

97

87

75

67

67

81

125

87 

72

64

61

56

54

61

64

59

52

52

49

47

136

123

78

67

61

59

56

56

78 

61

67

2,217

71.5

0.576

0.45

Sept.

572

778

597

167

140

984

1.700

236

196

172

152

132

123

111

230

157

140

115

127

119

104

101

108

101

87

81

90

111 

140

7,814

260

1.37

1.53

Calendar year!955 : Max 9,950 Mln 14 Mean 353 Cfsm 1.86 In. 25.20

Water year!955-56 : Max 6,750 Mln 47 Mean 353 Cfsm 1.86 In. 25.26

Peak discharge (base. 5.000 cfs). Oct. 15 (I a.m.) 17.300 cfs (12.68 ft)i Sept. 7 (2 a.m.)

5,710 cfs (8.38 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
160 RARITAN RIVER BASIN

Raritan River at Manville, N. J.

on left bank at downstream side of highway 

£ miles upstream from Millstone River.

Location. Lat 40°33'18", long 74°35'02"

bridge at Manville, Somerset County, 

Drainage area. 490 sq mi. 

Records available .--June 1903 to March 1907 (published as "at Finderne"), August 1908 to

April 1915 (gage heights only, published in WSP 521), August 1921 to September 1956. 

Gage. Water-stage recorder. Datum of gage is 20.61 ft above mean sea level, datum of

1929. Prior to Aug. 15, 1923, chain gage on downstream side of highway bridge at same

site and datum. Since Oct. 1, 1952, water-stage recorder at station at Bound Brook

used as auxiliary gage when stage is above 5.0 ft. 

Average discharge . 35 years (1921-56), 762 cfs (adjusted for diversion since Oct. 1,

1940). 

Extremes. Maximum discharge during year, 26,200 cfs Oct. 15; maximum gage height, 19.6 ft

Oct. 15; minimum discharge, 23 cfs Dec. 16, result of freezeup.

1903-7, 1921-56: Maximum discharge. 36,100 cfs Sept. 22, 1938 (gage height, 20.42

ft, from floodmark in recorder shelter), from rating curve extended above 14,000 cfs on

basis of slope-area determination at gage heights 14.9 and 20.42 ft; maximum gage

height, 22.1 ft Aug. 19, 1955; minimum discharge, about 15 cfs Sept. 12, 1932 (does not

include water diverted to Johns-Manville plant). 

Remarks . Records good except those for periods of ice effect or no gage-height record and

those when fall was used as a factor, which are fair. Diversion to Johns-Manville

plant, 1,500 ft above station, returned to river 0.6 mile below station. Slight diurnal fluctuation at low flow. 

Revisions (water years). WSP 801: 1904 (M), 1933 (M).

Rating table, water year 1955-56, except periods of Ice effect and periods 

when fall is used as a factor (gage height, In feet, and discharge, In 

cubic feet per second)

3.7 86 7.0 3,030

4.0 202 10.0 6,200

4.5 530 14.0 11,000

5.0 940 18.0 18,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ibtal

Mean

(t)

Oct.

320

307

254

223

207

398

770 

706 

698

407

326

295

254

a2, 400

alB.OOO

alO, 000

a7,500

k2,710

1,940

1,490

1,260

1,070

972

895

886

770

714

642

634

1,850 

1,640

60,538

1,953

6

Nov.

956

818

778

a900

aSOO

a700

650 

706 

634

602

1,410

1,020

818

868

a900

aSjOOO

*a2, 200

1,160

1,030

1,040

980

980

850

802

754

722

690

650

594 

509

28,521

951

6

Dec.

498

490

522

554

530

506

450 

*443 

414

414

352

b350

b350

b340

372

264

b310

284

320

b220

b200

b210

a220

a280

a330

a320

b240

b200

b220

b240 

b205

10, 648

343

6

Jan.

212

b205

193

212

218

*b230

b220 

b220 

b210

313

400

522

634

538

372

313

295

228

249

272

223

b220

244

b!70

b210~

b210

180

blSO

184

kl 520 

1J240

10,637

343

7

Feb.

450

kl,450"

kl,970

922

972

kl,600

k6,250 

1,770 

1,060

904

850

1,160

956

746

714

714

626

k3,950

k3,680

kl,760

1,210

895

786

674

k958

kl, 860

980

kl,720

1,310

42,897

1,479

7

Mar.

940

877

922

877

754

754

895 

*k5. 660 

k2,390

1,360

1,110.

1,040

956

*It3,490

*k2, 840

1,630

1,330

1,190

868

1,130

1,000

1,090

1,440

2,190

1,570

kl,930

k2,880

k2,480

2,080

2 580 

2^100

50,353

1,624

7

Apr.

1,660

1,520

1,330

1,270

1,180

1,010

k2,040 

k5,210 

k3,920

k2,920

2,250

1,760

1,460

1,310

1,240

2,160

1,720

1,250

1,140

1,040

956

922

877

842

770

810

877

770

738 940~

45,892

1,530

7

May

826

706

1,040

850

778

714

k2,230 

1, 290 

948

850

794

738

706

666

610

*546

506

498

474

466

428

407

a390

a400

a360

346

372

514

428

346

339

20,566

663

7

June

a440

a430

al.500

a9bO

a550

a450

a400 

326 

260

307

801

378

358

249

254

254

272

254

228

212

244

238

254

947

326

238

*351

571

326

228

12,546

418

6

July

202

193

193

244

428

490

332 

272 

382

a700

a400

a250

a230

a270

a230

a220

a220

a200

a!50

al60

566

626

339

254

207

193

758

730

538

307 

238

10, 522

339

6

Aug.

*207

180

157

141

149

170

233 

212 

157

138

122

118

115

134

134

126

115

112

Tie

115

303

407

255

166

149

145

134

130

207

207

153

5,182

167

7

Sept.

301

1,550

956

458

307

k547

k3.340 

786 

514

385

295

278

249

223

207

365

339

272

*218

223

233

193

184

202

198

170

145

157

188

238

13,721

457

7

Adjusted for diversion

Mean 

Cfsm 

In.

1,959 

4.00 

4.61

957 

1.95 

2.18

Calendar year 1955 : 

Water year 1955-56 :

349 

0.712 

0.82

350 

0.714 

0.82

1,486 

3.03 

3.27

1,631 

3.33 

3.84

1,537 

3.14 

3.50

670 

1.37 

1.58

Observed

Max 21,300 Min 28 Mean 848 

Max 18,000 Min 112 Mean 853

424 

0.865 

0.97

345 

0.704 

0.81

174 

0.355 

0.41

464 

0.947 

1.06

Adjusted

Mean 858 Cfsm 1.75 In. 23.75 

Mean 860 Cfsm 1.76 In. 23.87

Peak discharge (base. 10,000 cfs).--Oct. 15 (5 a.m.) 26,200 cfs.

* Discharge measurement made on this day.

t Diversion above station to Johns-Manville plant, equivalent in cubic feet per second, estimated 

on basis of monthly discharge measurements and information and data furnished by Johns-Manville Corp.

a No gage-height record; discharge estimated on basis of records for Raritan River at Bound Brook 

and Millstone River at Blackwells Mills.

b Stage-discharge relation affected by ice.

k Computed by using fall as a factor with station at Bound Brook as auxiliary gage.
RARITAN RIVER BASIN 

Millstone River at Blackwells Mills, N. J.

161

Location. Lat 40°28'30", long 74°34 I 34", on left bank just downstream from highway bridge 

at Blackwells Mills , Somerset County , a quarter of a mile downstream from Middlebrush 

Brook.

Drainage area. 258 sq mi.

Records available. --June 1903 to December 1904 (gage heights only), August 1921 to September 1956. Published as "at Millstone" 1903-4.

Datum of gage is 

staff

. Water-stage recorder. Concrete control since Nov. 18, 1933.

6.97 ft above mean sea level, datum of 1929. June 1903 to December 1904 staff gage at 

bridge if miles downstream at different datum. Aug. 4, 1921, to Aug. 16, 1928, staff 

gage at present site and datum.

Average discharge. --34 years (1922-56), 368 cfs.

Extremes. Maximum discharge during year not determined, occurred Oct. 15; maximum gage 

height , 11.57 ft Oct. 15 (backwater from Raritan River); minimum discharge, 36 cfs 

Aug. 20 (gage height, 1.38 ft).

1921-56: Maximum discharge, 18,300 cfs Sept. 21, 1938 (gage height, 15.29 ft, from 

floodmark) , from rating curve extended above 6,900 cfs on basis of slope-area determination of peak flow; minimum, about 5 cfs Sept. 16, 1923.

Remarks. Records excellent except those for period of backwater from Raritan River, which 

are fair. Water was probably interchanged between river and Delaware & Raritan Canal.

Rating table, water year 1955-56, except period of backwater from Raritan 

River (gage height, in feet, and discharge, in cubic feet per second)

1.3 

1.5 

1.7 

2.0 

2.5

114

222

470

3.O

5.0

8.0

11.0

810 

1,710 

3,800 

7.9OO

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11 

12

15

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

50

31

Tota:

Mean

Cfshi

In.

Oct.

102

97

91 

86

80

102

155

140

160

155

146 

156

120

0800

c4,OOO

06,500

5,690

1,180

647

476

590

520

278

261

255

226

2O6

198

186

829

927

22,895

739

2.86

3.50

Nov.

512

422

560 

520

288

256

259

256

251

214

482

575

550

515

570

545

278

265

285

285

510

292

274

248

251

222

210

190

171

9,254

508

1.19

1.35

Dec.

16O

160

160 

164

171

164

155

146

*145

14O

130 

124

120

117

120

114

108

105

105

100

88

85

85

85

91

100

100

91

86

86

86

5,681

119

0.461

0.55

Jan.

80

77

72 

77

86

91

91

86

86

140

248 

454

500

434

340

283

252

210

190

19O

171

160

160

145

140

155

12O

111

114

444

768

6,451

207

0.802

0.95

Feb.

590

768

1,510 

726

782

896

2,510

1,550

870

656

600 

918

655

506

458

454

575

1,420

2.560

1,560

768

506

585

525

422

607

452

985

878

24,852

857

3.52

3.58

Mar.

544

488

446

416

375

550

47O

1,520

1,750

870

642 

50O

440

1,570

2.460

1,510

895

719

544

565

524

586

900

1,400

1,120

1,1OO

1,400

1,110

830

1,050

850

27,524

888

3.44

5.97

Apr.

655

518

452 

405

380

540

718

2,200

2,88O

2,29O

1,150 

740

565

470

428

621

530

410

365

355

510

283

274

261

244

256

*288

265

256

251

19,100

657

2.47

2.75

May

214

202

255 

226

222

210

1.540

88O

600

422

555 

278

252

226

2O2

182

160

157

157

155

150

150

127

127

111

105

TTT

120

111

111

114

7,970

257

0.996

1.15

June

153

145

552 

506

198

160

150

114

94

94

182 

114

97

91

85

77

72

68

63

58

58

65

61

94

86

83

10O

117

88

70

3,629

121

0.469

0.52

July

61

54

48 

48

50

72

65

61

83

86

75 

68

61

65

58

54

54

56

56

52

174

178

164

178

168

150

108

100

105

75

68

2,675

86.5

0.554

0.59

Aug.

61

56

52 

44

42

44

94

85

85

86

77 

68

58

58

52

48

46

44

44

58

112

105

83

86

86

80

68

58

61

56

52

2,025

65.5

0.253

O.29

Sept.

54

54

54 

54

61

70

97

91

97

111

1O5 

85

70

65

56

68

68

111

86

72

65

58

56

61

65

61

56

61

65

61

2,150

71.0

0.275

0.51

Calendar year 1955; Max 6,500 Min 10 Mean 355 cfsm 1.38 In. 18.67

Water year 1955-56: Max 6,500 Mln 38 Mean 561 cfsm 1.4O In. 19.05

Peak discharge (base, 5,OOP efs).--0et. 15 (time and discharge unknown); Apr. 9 (4 a.m.) 3,050 cfs 

(7.20 ft).

* Discharge measurement made on this day. 

c Backwater from Raritan Risrer.
162 RARITAN RIVER BASIN 

Raritan River at Bound Brook, N. J.

Location. Lat 40°33'00", long 74°33'05", on left bank 120 ft upstream from Calco Dam and 

Cuckold Brook, half a mile southwest of borough of Bound Brook, Somerset County, and 

1 mile downstream from Millstone River.

Drainage area.--779 sq mi.

Records available.--September 1903 to March 1909, January 1945 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 18.06 ft above mean 

sea level, datum of 1929. September 1903 to March 1909 staff and chain gages at highway bridge 1.4 miles downstream at different datum.

Average discharge. 11 years (1945-56), 1,231 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 26,700 cfs Oct. 15 (gage height, 14.38 ft), from 

rating curve extended above 17,000 cfs as explained below; minimum daily, 150 cfs 

Aug. 18, 20.

1903-9, 1945-56: Maximum discharge, 30,800 cfs Aug. 19, 1955 (gage height, 16.20 

ft), from rating curve extended above 17,000 cfs on basis of slope-area determination 

of peak flow; minimum daily, 43 cfs Aug. 6, 1955.

A stage of 16.3 ft (from floodmark, present site and datum) occurred Sept. 22, 1938.

Remarks. Records excellent except those for period of doubtful gage-height record, which 

are good. Figures of discharge include water diverted 150 ft above dam to Calco plant 

and returned to river just below dam. Water diverted 1 mile above station by 

Elizabethtown Water Co. for municipal supply. Slight diurnal fluctuation at low flow.

Cooperation. Water-stage-recorder graph and record of diversion to plant furnished by 

Calco Chemical Division, American Cyanamid Co.

Revisions (water years). WSP 1332: 1949(M).

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

e

7 

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

402

370

311

274

265

428

880 

810 

899

584

491

450

399

2,870

22.600

17,400

11,800

4,440

2,830

2,160

1,750

1,490

1,300

1,210

1,140

1,030

954

887

849 

2,840

3,030

87,143

2,811

25

Nov.

1,600

1,340

1,210

1,330

1,120

982

923 

988 

90O

845

2,190

1,710

1,26O

1,300

1,260

5.250

2,710

1,570

1,400

1,440

1,340

1,370

1,210

1,160

1,040

997

946

883

8O6 

706

39,786

1,326

22

Dec.

677

675

691

122

725

675

617 

605 

584

582

484

486

480

465

516

378

425

417

427

323

'29T 278

296

378

418

448

369

297

320 

329

281

14,675

473

24

Jan.

304

28O

285

307

327

325

328 

276 

278

461

678

987

1.23O

1,060

808

657

617

482

458

497

425

385

435

311

313

367

285

296

328 

1,780 n -x-xrt

£.1 JJU

17,900

577

28

Feb.

933

2,000

3,670

1,740

1,790

2,630

9.400 

3,690 

2,100

1,670

1,530

2,240

1,720

1,320

1,230

1,230

1,060

5,260

7,370

3,470

2,120

1,460

1,210

1.02O

1,240

2,66O

1,510

2,790

2,500

- -

72,563

2,502

21

Mar.

1,570

1,410

1,420

1,340

1,170

1.150

1,400 

5,580 

4,750

2,460

1,910

1,650

1,47O

4,930

6.190

3,220

2,420

2,060

1,500

1,820

1,640

1,790

2,500

3,840

2,980

3,170

4,67O

3,930

3,040 

3,840

3,140

83,940

2,708

23

Apr.

2,410

2,140

1,870

1,710

1,590

*1,370

2,850 

8,200

7,7So

5,880

3,610

2,640

2,13O

1,860

1,700

2,800

2,380

1,720

1,540

1,370

1,250

1,170

1,110

1,070

978

1,030

1,170

1,020

949

1,155

"" ---

68,367

2,279

22

May

985

857

1,210

1,O40

960

881

5.640 

2,320 

1,56O

1,290

1,120

995

958

864

796

755

664

654

655

655

587

551

559

557

494

475

501

614

518

456 

TCT 4DJ.

28,544

921

26

June

571

574

2.080

1,180

755

615

551 

469 

40O

450

1,060

588

457

567

554

316

327

297

267

249

270

321

5O2

978

444

327

424

679

428

311

16,371

546

27

July

247

249

246

302

434

537

419 

341 

394

783

451

315

*293

353

304

284

290

252

205

2l3

676

804

504

435

402

330

801

806

663

afl7 OO '

3O3

15,025

420

25

Aug.

265

250

200

ISO

190

210

310 

290 

230

22O

200

180

165

190

180

170

155

150

16O

150

389

477

295

242

222

218

189

177

232

243

203

6,912

223

27

Sept.

292

1.32O

992

488

348

423

5.450 

649 

592

489

410

371

347

292

265

434

404

388

524

514

525

280

266

280

287

256

240

255

294

554

15,609

520

27

Adjusted for diversion

Mean 

Cfsm 

In.

2,836 

5.64 

4.20

1,548 

1.73 

1.93

Calendar year 1955: 

Water year 1955-56:

497 

0.638 

0.74

605 

0.777 

0.90

2,525 

3.24 

3.49

2,731 

3.51 

4.04

2,501 

2.95 

3.30

947 

1.22 

1.4O

Observed

Max 23,000 Mln 43 Mean 1,227 

Max 22,6OO Mln 150 Mean 1,270

573 

0.736 

0.82

443 

O.569 

0.66

250 

0.321 

0.57

Adjusted

547 

0.702 

0.78

Mean 1,252 Cfsm 1.61 In. 21.84 

Mean 1,295 Cfsm 1.66 In. 22.63

Peak discharge (base. 12.000 cfs). Oct. 15 (9 a.m.) 26,700 cfs (14.38 ft).

* Discharge measurement made on this day.

t Diversion from river 1 mile above station for municipal supply, equivalent In cubic feet per 

second. Records furnished by Elizabethtown Water Co.

Note. Doubtful gage-height record Aug. 1-2O; discharge estimated on basis of records for station 

at Manvllle and Millstone River at Blackwells Mills.
RARITAN RIVER BASIN 163

Green Brook at Plainfield, N. J.

Location. Lat 40"36 I 50", long 74"25 t 55", on left bank 20 ft downstream from Sycamore 

Avenue Bridge in Plainfield, Union County, and 1 mile upstream from Stony Brook.

Drainage area. 9.75 sq mi.

Records available.--May 1938 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 70.37 ft above mean 

sea level, datum of 1929.

Average discharge. 18 years, 12.1 cfs (unadjusted).

Extremes. Maximum discharge during year, 639 cfs Oct. 14 (gage height, 3.29 ft), from 

rating curve extended above 220 cfs as explained below; minimum daily, 0.5 cfs 

Jan. 28, 29.

1938-56: Maximum discharge, 2,890 cfs July 23, 1938 (gage height, 5.82 ft), from 

rating curve extended above 220 cfs on basis of contracted-opening determination of 

peak flow; no flow at times.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Water diverted from Baltusrol well field by Commonwealth Water Co. and from wells in 

vicinity of Mountainside and Scotch Plains by Plainfield-Union Water Co. for municipal 

supply and from private and industrial wells in Plainfield and vicinity. Diurnal 

fluctuation at low flow caused by pumpage from wells near river in Plainfield.

Revisions (water years). WSP 921: 1938-40.

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

0.65 

.7 

.75 

.3 

.9

0.5 

.3 

1.4 

Z.2 

4.6

8.1

19

38

88

162

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30 

31

Total

Mean

Cfsm

In.

Oct.

2.4

1.1

1.3

1.1

I*°

17

8.5

11

4.6

2.4

2.2

1.9

1.9

161

TT3

106

52

24

16

11

8.5

6.9

5.9

6.2

5.9

4.9

4.4

4.1 

4.1

70

21

681.3

22.0

_

-

Nov.

12

9.3

8.5

9.3

7.7

6.6

7.4

8.5

6.9

8.4

37

13

9.8

15

15

86

28

*16

16

15

13

13

11

10

8.9

8.5

8.1

7.3 

5.7

S7?

426.6

14.2

-

Dec.

4.9

4.9

5.2

5^

5.2

4.6

4.1

4.1

4.1

2.9

2.7

2.7

2.6

*2.5

2.4

2.1

1.9

1.9

1.7

1.3

al.2

al.3

al.4

al.6

al.7

al.5

al.4

al.4 

al.4

al.6

al.5

83.0

2.68

_

-

Jan.

al.3

a. 9

al.6

al.7

1.6

1.7

1.5

1.0

1.2

4.8

4.8

17

10

6.3

4.1

3.6

3.1

2.5

2.6

3.5

2.5

2.2

2.3

1.9

1.8

1.7

1.1 T§ 14

10

113.3

3.65

-

Feb.

3.3

21

14

10.

10

47

72

18

14

13

14

19

13

10

11

9.3

8.5

~35 119

25

18

16

13

12

29

22

14

42 

19

675.1

23.3

-

Mar.

13

14

14

14

11

15

19

80

29

19

16

14

14

40" 94

25

24

18

15

18

18

20

32

37

24

30

37

31 

36

42

31

844

27.2

-

Apr.

25

21

19

16

14

12

77

114

^7

60

38

27

22

19

20

*34

22

16

14

12

11

9.8

8.9

8.5

7.5

15

11

8.5 

7.7

8.9

765.6

25.5

-

May

6.6

11

18

11

9.8

11

41

T5

11

10

9.3

8.5

7.7

7.3

5.9

5.9

5.2

5.9

5.5

4.6

4.1

3.8

3.8

3.3

2.6

2.4

13

5.9

3.1

2.6

4.9

259.7

8.38

_

-

June

8.9

17

13

6.6

4.6

4.1

3.8

3.3

2.9

3.1

3.6

2.9

2.6

2.6

2.2

2.1

1.6

27\

2.1

1.9

4.6

10

5.2

7.7

3.8

2.6

16

13 

6.2

3.3

163.4

5.45

-

July

2.1

2.2

2.4

4.6

21

9.0

4.9

4.7

20

6.4

3.8

4.0

5.6

7.6

2.6

6.9

3.4

2.6

2.4

*2.2

33

6.2

4.4

3.3

2.9

3.4

18

4.9 

2.4

2.4

2.1

201.4

6.50

_

-

Aug.

2.1

2.2

1.9

1.6

1.0

15

7.0

3.3

2.6

1.9

1.7

1.0

2.0

1.7

1.6

1.7

1.6

1.4

.8

2.7

23

3.5

2.4

1.9

1.7

.8

1.6

ft

2.6 

4.4

178.7

5.76

_

-

Sept.

4.1

6.5

2.9

1.9

1.1

21

14

3.6

2.0

1.4

1.3

1.3

1.3

1.3

4.5

6.1

2.7

2.2

1.3

2.7

1.4

1.0

TTT

4.2

1.6

1.0

1.3

2.4

1.4

1.1

99.7

3.32

_

-

Calendar year 1955: Max 374 Min 0.3 Mean 11.9 Cfsm - In. -

Water year 1955-56: Max 161 Min 0.5 Mean 12.3 Cfsm - In. -

Peak discharge (base. 575 cfs). Oct. 14 (7 p.m.) 639 cfs (3.29 ft). 

* Discharge measurement made on this day.

a No gage-height record,' discharge estimated on basis of weather records, engineer's notes, 

records for Rahway River near Springfield and Neshanlc River at Reavllle.
164 RARITAN RIVER BASIN

Lawrence Brook at .Farrington Dam, N. J.

Locatlon. Lat 40°27'00", long 74 0 27'05", on left bank 300 ft upstream from Farrington 

Dam, half a mile southwest of Milltown, Middlesex County, and 5? miles upstream from 

mouth.

Drainage area. 34.4 sq mi.

Records available . May 1927 to September 1956.

Gage. Water-stage recorder above concrete dam. Datum of gage is 25.73 ft above mean sea 

level, datum of 1929.

Average discharge. 28 years (1928-56), 37.8 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 658 cfs Oct. 16 (gage height, 25.37 ft); minimum, 5.5 cfs Aug. 20 (gage height, 24.49 ft).

1927-56: Maximum discharge, 2,660 cfs Sept. 21, 1938 (gage height, 26.18 ft), from 

rating curve extended above 400 cfs on basis of weir formula; no flow at times when 

gates in dam were closed and there was no flow over spillway.

Revisions . The maximum discharge for the water year 1952 has been revised to 

925 crs June 1, 1952 (gage height, 25.55 ft), superseding figure published in WSP 1232.

Remarks. Records good. Blow-off gages not opened during year. Plow regulated by Farrington Reservoir (capacity, 87,600,000 cu ft).

Cooperation. Water-stage recorder inspected by employee of city of New Brunswick.

Revisions . WSP 781: Drainage area. The figures of peak discharge for the water year 

1952 have been revised as shown below, superseding those published in WSP 1232.

Revised peak discharge. 1951-52: Dec. 21 (10 a.m.) 808 cfs (25.48 ft); Mar. 11 

(5 p.m.) 623 cfs (25.36 ft); Apr. 28 (7 a.m.) 776 cfs (25.46 ft); Ju

925 cfs (25.55 ft).

June 1 (8 p.m.)

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

26

29

30

31

Total

Mean

(t)

Oct.

17

17

15

13

15

23

23

27

27

23

17

17

15

132

340

352" 371

106

73

61

45

4O

40

35

31

27

27

27

27

98

1O6

2,135

6B.9

+0.5

Nov.

67

55

45

40

45

40

35

40

35

35

98

m

55

50

45

61

61

40

40

45

40

45

4O

40

35

31

27

27

23

17_

1,324

44.1

-0.4

Dec.

17

20

20

23

27

20

17

17

17

*20

20

17

17

17

17

17

17

17

17

15

15

13

TS

13

15

15

15

15

13

13

13

518

16.7

-0.1

Jan.

12

TZ

13

15

15

15

15

15

15

27

50

73

79BT:

45

35

27

23

20

23

20

17

17

17

15

15

15

15

15

5O

67

853

27.5

+0.4

Feb.

45

84

135

79

79

95

237

113

79

67

67

99

73

55

50

50

40

247

175

99

67

50

40

50" 35

67

55

108

85

2,529

87.2

+0.1

Mar.

61

55

50

50

45

40

3T

258

m

99

79

61

61

234

196

106

92

85

67

61

73

85

141

176

106

99

113

85

79

106

73

3,071

99.1

O

Apr.

61

50

50

45

45

4O

112

400

2Tf

160

99

79

67

55

55

79

67

55

*45

45

4O

55" 35

35

35

40

45

40

35

35

2,266

75.5

-0.3

May

31

31

4O

40

35

33

216

113

73

50

45

40

40

35

31

27

27

23

23

35

27

23

23

27

23

20

2T

23

20

21

23

1,239

4O.O

O

June

27

33

45

37

27

20

20

17

13

15

17

17

13

12

11

10

1O

9.9

9.5

9.0

9.2

10

10

15

12

9.9

9.2

9.0

8.3

7.8

470.8

15.7

-0.6

July

7.2

7.0

7.0

14. 775

9.2

9.9

9.9

11

11

10

9.2

8.8

8.8

8.8

8.5

8.3

7.8

7.2

6.7

24

27

IT

13

12

10

10

11

17

15

11

337.8

1O.9

+0.4

Aug.

9.9

9.0

8.5

8.0

7.8

8.8

17

17

13

10

9.2

8.8

8.3

8.O

7.5

7.O

6.7

6.2

6.0

5.7

14

20

IS

11

9.9

9.0

8.8

8.3

8.8

8.3

8.3

301.8

9.74

-0.28

Sept.

8.3

9.0

9.2

8.6

8.5

8.6

17

17

12

10

9.5

9.0

8.5

8.3

7.8

8.8

13

13

17

13

12

10

9.9

11

11

9.9

9.2

9.5

9.5

9.5

317.8

10.6

+0.2

Adjusted for change In contents In Farrington Reservoir

Mean 

Cfsm 

In.

69.4 

2.02 

2.32

43.7 

1.27 

1.42

16.6 

0.483 

O.56

27.9 

O.811 

0.93

87.3 

2.54 

2.74

99.1 

2.88 

3.32

75.2 

2.19 

2.14

40.0 

1.16 

1.34

Observed

Calendar year 1955: 

Water year 1955-56:

Max 887 Mln O Mean 37.8 

Max 400 Hln 5.7 Mean 42.0

15.1 

0.439 

0.49

11.3 

0.328 

0.38

9.46 

0.275 

0.32

1O.8 

O.314 

0.35

Adjusted

Mean 37.8 Cfsm 1.10 In. 14.89 

Mean 42. O Cfsm 1.22 In. 16.61

Peak discharge (base. 45O cfs). Oct. 16 (ll p.m.) 658 cfs (25.37 ft)j Feb. 18 (6 p. 

:5.24 ft) } Mar. 14 (8 p.m.) 480 cfs (25.25 ft); Apr. 8 (8 p.m.) 466 cfs (25.24 ft). 

* Discharge measurement made on this day. 

t Change In contents, equivalent in cubic feet per second, in Farrington Reservoir.

a.) 466 cfs
RARITAN RIVER BASIN 165

South River at Old Bridge, N. J.

Location. Lat 40 0 24'09", long 74"21'58", on right abutment of Duhernal Dam, 1,500 ft 

downstream from Ireslck Brook and 0.6 mile south of Old Bridge, Middlesex County.

Drainage area. 94.6 sq ml.

Records available. August 1939 to September 1956.

Gage. Water-stage recorder above concrete dam. Datum of gage Is at mean sea level, datum 

of 1929.

Average discharge. 17 years, 140 cfs (unadjusted).

Extremes. Maximum discharge during year, 1,060 cfs Apr. 9 (gage height, 10.67 ft); min- 

 ImumT 28 cfs Aug. 19, 20 (gage height, 9.54 ft).

1939-56: Maximum discharge, 4,250 cfs Sept. 15, 1944 (gage height, 11.71 ft), from

rating curve extended above 770 cfs on basis of laboratory rating; minimum, 4 cfs

Jan. 3, 1949.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Figures of discharge include flow over spillway and direct diversion from pond 

to sewer, which is returned to river Just below dam. The flow past this station is 

affected by pumpage from well fields for industrial use by Duhernal Water Co. and 

Peter J. Schweitzer Co.

Cooperation. Water-stage recorder inspected and record of diversion to sewer furnished 

by Duhernal Water Co.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

62

64

58

53

M

58

97

120

134

112

85

72

64

119

628

935

578

306

204

163

128

120

112

103

109

95

90

90

90 

114

271

5,282

170

-

-

Nov.

204

126

114

109

106

103

98

103

103

100

136

177

141

123

116

117

114

100

98

103

109

114

112

106

98

92

90

88

77

11

3,349

112

-

-

Dec.

70

70

72

79

81.

79

74

72

70

72

72

66

62

60

62

62

58

60

60

55

52

48

46

IS

57

64

60

55

50

50 

50

1,936

62.5

-

-

Jan.

50

50

50

55

58

60

60

55

58

96

215

237

215

170

128

114

106

98

88

85

83

77

79

70

66

68

62

58

62

95 

259 

3,027

97.6

-

-

Feb.

170

146

369

306

294

259

433

448

259

194

170

259

237

177

155

141

134

297

745

469

237

170

141

120

144

259

226

248

319

7,526

260

-

-

Mar.

204

163

170

155

134

123

^js4t

271

406

259

185

163

155

282

595

382

332

283

204

177

259

259

332

476

382

271

271

237

204

259 

237

7,964

257

-

-

Apr.

185

163

148

141

134

128

200

595

977

6TI

344

237

185

177

163

177

194

170

148

*141

134

123

123

120

117

123

170

148

123

117

6,516

217

-

May

112

106

120

134

123

114

362

334

255

163

148

128

117

114

103

92

88

85

81

85

81

74

70

70

68

le- 66

ss

74

81

3,699

119

_

-

June

114

143

283

185

127

106

90

79

70

70

74

74

64

57

52

48

57

90

77

58

55

60

58

85

120

85

62

55

50

46

2,594

86.5

_

-

July

42

39

37

4Q- 36

52

57

55

53

64

57

45

42

70

74

53

52

46

42

37

121

259

170

106

a80

a60

a55

a60

a75

a70 

52

2,106

67.9

-

Aug.

43

40

37

34

33

41

90

94

68

52

43

39

37

36

34

33

32

29

28 ?8"

57

109 -83

60

48

42

39

36

39

36 

32

1,452

46.8

-

-

Sept.

36

43

81

66

52

45

98

114 ^79

60

50

45

43

40

40

48

60

98

70

55

57

90

60

72

66

55

50

53

64

64

1,854

61.8

-

-

Calendar year 1955: Max 1,860 Min 5.6 Mean 113 Cfsm - In. -

Water year 1955-56: Max 977 Min 28 Mean 129 Cfsm - In. -

rean aiscnarge loase, fw eis). uct. ib (z p.m.) 1,040 cis iiu.se te;j pen. la \o to 11 p.m.; 

801 cfs (10.54 ft); Apr. 9 (1 a.m.) 1,060 cfs (10.67 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records 

and records for Lawrence Brook at Farrington Dam.

505690 O - 59 - 12
166 NAVESINK RIVER BASIN

Swimming River near Red Bank, N. J.

Location. Lat 40°19'03", long 74°06'57", on right bank of Swimming River Reservoir, 

4 miles upstream from mouth and 4 miles upstream from Red Bank, Monmouth County.

Drainage area. 48.5 sq mi.

Records available. July 1922 to September 1956.

Gage. Water-stage recorder above dam. Crest of dam raised and modified June 4-28, 1956, 

"t'or installation of flashboards. Datum of gage is 12.33 ft above mean sea level, datum 

of 1929.

Average discharge. 34 years, 76.4 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 622 cfs Feb. 18 (gage height, 4.01 ft); maximum 

gage height, 6.01 ft July 21; no flow June 29 to July 6.

1922-56: Maximum discharge. 8,910 cfs Oct. 27, 1943 (gage height, 8.96 ft), from 

rating curve extended above 600 cfs on basis of weir formula; no flow for some days In 

1923, 1925, 1927, 1930, and 1955-56.

Flood in July 1919 reached a stage of 7.84 ft, from floodmark (discharge about 

11,800 cfs).

Remarks. Records good except those for periods when waste gate was open or those of no 

gage-height record and backwater while crest of dam was modified and raised, which are 

fair. Figures of discharge represent flow over spillway or flashboards and through 

waste gate. Diversion above station for municipal supply.

Cooperation. Water-stage recorder Inspected and record of diversion furnished by Monmouth 

Consolidated Water Co.

Revisions (water years). WSP 781: Drainage area. WSP 891: 1939.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

44

42

32

22

19_

34

81

59

64

42

33

29

27

58

339

230

T2"6 273

89

73

64

57

52

52

52

52

48

46

46

90

176

2,451

79.1

13.6

Nov.

78

64

57

64

59

55

52

55

52

50

81

ST

64

59

61

59

59

48

50

64

59

59

57

55

50

46

44

44

41

35

1,702

56.7

13.2

Dec.

37

37

41

44

44

41

39

37

39

*44

37

35

33

33

37

33

30

35

33

26

19

26

27

30

37

39

27

23

27

32

26

1,048

33.8

13.3

Jan.

29

24

3T>

33

35

33

32

24

30

73

105

101

83

66

55

50

46

42

39

42

39

37

41

32

30

37

30

29

33

58

125

1,463

47.2

13.7

Feb.

57

ST

186

83

119

83

223

121

86

76

81

156

98

76

73

73

68

2~2e~ 261

112

89

71

68

61

86

119

83

121

119

3,138

108

13.3

Mar.

83

83

81

76

71

71

78

105

146

92

81

78

76

allO

a!80

a!30

148

130

89

101

108

112

140

192

133

116

130

108

101

133

108

3,390

109

11.5

Apr.

92

86

86

83

83

a80

a!50

a440

a335

*a!9O

133

116

105

98

98

116

112

92

83

86

89

83

81

78

76

83

98

81

76

a70

3,474

116

13.5

May

a67

a64

a85

a75

a70

a65

a!9O

aTTO

a85

a75

73

68

64

57

55

55

52

50

50

46

42

41

41

42

3£

39

46

64

48

42

52

1,952

63.0

15.7

June

118

113

~95 336

a60

a45

a40

c35

c35

c35

a40

c35

c25

c20

c!5

CIS

c!5

c20

c!5

015

c20

*e35

o2

e40

e4O

e30

e!5

e3.8

o-0

1,312.8

43.8

17.0

July

o-0

o

o

0

o

8.8

22

a30

a25

a21

a!9

17

46

a20

alO

a5.0

a4.0

3.0

4.1

106

a 140

aBT

a55

a40

30

27

27

27

24

*19

794.9

25.6

19.2

Aug.

19

17

15

12

15

33

*e71

e44

22

19

17

15

15

17

17

12

12

10

1?T^ 6.9

46

24

6.9

19

19

17

17

17

17

17

17

615.8

19.9

16.3

Sept.

19

22

30

22

19

19

42

a27

a20

a!7

17

17

*15

T5

17

33

27

3O

22

19

17

17

17

24

24

e41

e93vr

33

22

784

26.1

10.9

Adjusted for diversion and change In reservoir contents

Mean 

Cfsm 

In.

92.7

1.91 

2.20

69.9 

1.44

1.61

Calendar year 1955: 

Water year 1955-56-.

47.1 

0.971 

1.12

60.9 

1.26 

1.45

121 

2.49 

2.70

121 

2.49 

2.87

129 

2.66 

2.97

78.7 

1.62 

1.87

Observed

Max 1,950 Mln 0 Mean 53.2 

Max 440 Mln 0 Mean 60.5

60.8 

1.25 

1.40

44.8 

0.924 

1.07

36.2 

0.746 

0.86

37.0 

0.763 

0.85

Adjusted

Mean 67.6 Cfsm 1.39 In. 18.89 

Mean 74.8 Cfsm 1.54 In. 20.97

Peak discharge (base. 600 cfs). Pelt). 18 (5 p.m.) 622 cfs (4.01 ft).

* Discharge measurement made on this day.

t Diversion above station for municipal supply and change In contents In Swimming River Reservoir 

for months of July and September (change In contents negligible for other months of year), equivalent In cubic feet per second. Records of diversion furnished by Monmouth Consolidated Water Co.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

Manasquan River at Squankum.

c Backwater while crest of dam was modified and raised.

e Waste gate open.
MANASQUAN RIVER BASIN 167

Manasquan River at Squankum, N. J.

Location. Lat 40 0 09'47", long 74°09'21", on right bank Just downstream from FarmlngdaleLakewood highway bridge In Squankum, Monmouth County, half a mile downstream from 

Marshbog Brook.

Drainage area. 43.4 sq ml.

Records available . July 1931 to September 1956.

Sage.--Water-stage recorder and concrete control. Datum of gage Is 18.82 ft above mean 

sea level, datum of 1929. Prior to Aug. 13, 1940, water-stage recorder at site 80 ft 

upstream at same datum and concrete control 50 ft upstream 1 ft lower than present 

control.

Average discharge. 25 years, 72.0 cfs.

Extremes. Maximum discharge during year, 658 cfs Feb. 18 (gage height, 6.22 ft); minimum, 24 cfs Sept. 24 (gage height, 2.50 ft).

1931-56: Maximum discharge, 2,940 cfs Sept. 21, 1938 (gage height, 12.45 ft, from 

floodmark, site then In use), from rating curve extended above 900 cfs on basis of 

contracted-opening determination of peak flow; minimum, 12.9 cfs Sept. 10, 1932.

Remarks. Records excellent except those above 260 cfs, which are fair. 

Revisions (water years). WSP 781: 1934(M). WSP 821: 1936(M).

Rating table, water year 1955-56 (gage height. In feet, and 

discharge, In cubic feet per second)

2.5 

2.7 

2.9 

3.2 138

3.6 

4.0 

5.0 

5.3

246

300

434

483

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

37

33

30

30

29_

50

58

48

51

37

34

33

31

99

552

277

252

121

89

71

66

60

54

52

54

51

48

47

48 

99

108

2,449

79.0

1.82

2.10

Nov.

74

63

58

58

54

51

48

52

49

48

89

65

58

55

54

51

49

47

47

55

52

55

52

51

47

46

49

46

42

40

1,609

53.6

1.24

1.38

Dec.

41

40

42

42

42

40

39

41

41

11

41

39

39

36

39

37

35

35

35

35

31

31

33

34

35

35

33

31

31 

33

32

1,145

36.9

0.850

0.98

Jan.

31

30

31

33

34

34

33

31

33

60

84

78

68

58

49

*46

46

41

40

41

39

37

37

36

35

35

34

33

34 

93

j.14

1,428

46.1

1.06

1.22

Feb.

63

BF

174

98

131

96

249

131

97

84

99

193

114

89

84

78

72

332 3T9-

157

112

91

80

72

97

110

84

131

112

3,634

125

2.88

3.11

Mar.

87

85

84

80

7_1

71

78

116

138

95

80

74

78

165

215

138

185

138

106

110

114

126

173

213

141

121

116

101

97 

121

99

3,616

117

2.70

3.10

Apr.

85

78

76

74

72

69

157

473

353

185

133

114

104

97

93

110

110

93

85

82

80

74

72

71

66

84

85

74

69

64

3,382

113

2.60

2 .90

May

61

60

80

69

66

61

202

1ST

87

*78

69

68

63

60

57

55

52

52

51

48

47

47

46

43

42

42

49

58

48 

43

42

1,967

63.5

1.46

1.69

June

46

98

137

74

61

51

46

43

42

42

45

40

36

34

33

30

29

3T

31

29

29

33

31

84

51

41

36

36

39 

33

1,391

46.4

1.07

1.19

July

31

30

29

29

31

36

35

32

52

42

33

29

34

69

42

35

34

31

29

2_8

262

156

74

66

58

47

43

48

58 

42

39

1,604

51.7

1.19

1.37

Aug.

36

35

33

32

31

45

66

45

36

34

31

30

30

32

31

29

29

28

21

28

79

60

41

36

32

30

29

29

29 

29

29

1,112

35.9

0.827

0.95

Sept.

28

36

45

32

29

28

51

37

30

28

28

28

*27

S£

?5

35

30

28

27

27

27

26

26

26

28

27

28

41

35 

30

920

30.7

0.707

0.79

Calendar year 1955 : Max 1,030 Mln 15 Mean 56.1 Cfsm 1.29 In. 17.54

Water year 1955-56 : Max 473 Mln 26 Mean 66.3 Cfsm 1.53 In. 20.78

Peak discharge (base. 600 efs).--Feb. 18 (12 p.m.) 658 cfs (6.22 ft). 

Discharge measurement made on this day.
168 TOMS RIVER BASIN

Toms River near Toms River, N. J.

Location. Lat 39°59'10", long 74°13'29", on left bank 1 mile downstream from Union Branch 

and 2 2 miles northwest of village of Toms River, Ocean County.

Drainage area. 124 sq mi.

Records available. December 1928 to September 1956.

Gage.--Water-stage recorder. Datum of gage Is 8.10 ft above mean sea level, datum of 

~1929.

Average discharge.--27 years (1929-56), 206 cfs.

Extremes. Maximum discharge during year, 661 cfs July 23 (gage height, 7.48 ft); minimum, 

96 cfs July 2 (gage height, 3.37 ft).

1928-56: Maximum discharge, 1,540 cfs Sept. 23, 1938 (gage height, 12.50 ft, from 

floodmark), from rating curve extended above 650 cfs by logarithmic plotting; minimum, 

56 cfs July 5, 1944 (gage height, 2.96 ft).

Remarks. Records excellent.

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cutic feet per second)

3.35 

4.0 

6.0 

7.3

94

170

434

631

Discharge, in cutic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

149

138

121

116

106

117

135

146

150

151

153

134

117

143

262

385

604

614

488

376

294

244

211

193

182

176

171

166

161

210

6,791

219

1.77

2.04

Nov.

217

*217

211

199

183

167

160

161

167

160

182

193

197

200

191

180

173

155

134

T4U

153

158

161

161

157

152

147

144

139

137

5,096

170

1.37

1.53

Dec.

133

131

131

132

132

129

128

125

127

155

134

128

125

121

122

120

113

116

113

112

106

108

106

108

112

112

111

104

157 

108

106

3,695

119

0.960

1.11

Jan.

108

102 TOB"

106

107

109

109

107

106

129

164

193

209

213

199

179

167

156

146

143

138

133

129

123

121

125

119

114

120 

141

171

4,293

138

1.11

1.29

Feb.

183

206

227

239

272

283

318

326

326

305

283

296

295

301

288

264

247

287

360

416

471

4Tf

338

281

264

262

261

284

292

8,592

296

2.39

2.58

Mar.

284

281

270

257

246

235

225

2l2

272

283

296

277

258

282

326

361

433

438

421

391

374

350

346

356

370

378

361

333

313 

310

298

9,867

318

2.56

2.96

Apr.

290

277

261

250

248

241

279

382

474

620

612

508

426

361

321

310

312

308

296

279

268

255

244

237

228

257

258

250

250 

241

9,543

318

2.56

2.86

May

225

214

225

230

239

231

259

286

*304

307

313

270

234

217

209

207

193

186

184

179

170

165

162

157

151

147

T5F

164

182 

167

155

6,487

209

1.69

1.95

June

151

195

255

270

274

255

232

203

169

162

160

153

144

134

127

125

119

120

118

116

119

121

120

129

137

128

119

118

108 

102

4,683

156

1.26

1.40

July

99

97

SS

103

121

174

162

147

155

187

183

161

144

179

238

330

322

250

202

170

258

398

570

610 4"89~

366

294

250

224

197

178

7,356

237

1.91

2.21

Aug.

164

151

141

132

128

146

184

193

192

178

152

139

145

137

128

118

114

113

104

IS

154

206

216

5To

175

149

129

119

112 

110

108

4,546

147

1.19

1.36

Sept.

107

134

232

224

211

187

199

191

183

164

137

133

133

114

106

109

111

108

103

103

102

101

W

107

113

112

110

133

140 

137

4,146

138

1.11

1.24

Calendar year 1955 : Max 867 Min 64 Mean 170 Cfsm 1.37 In. 18.66

Water year 1955-56 : Max 620 Min 97 Mean 205 Cfsm 1.65 In. 22.53

Discharge measurement made on this day.
CEDAR CREEK BASIN 169

Cedar Creek at Lanoka Harbor, N. J.

Location.--Lat 39°52'05", long 74°10'06", on right bank 20 ft upstream from bridge on 

U. S. Highway 9 at village of Lanoka Harbor, Ocean County.

Drainage area. 56.0 sq mi.

Records available. July 1932 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is at mean sea level, 

aatum of 1929. Prior to Oct. 13, 1933, water-stage recorder at site 70 ft downstream 

at same datum.

Average discharge-. 24 years, 107 cfs. 

Ext;remes. Maximum daily discharge during year, 314 cfs Oct. 15; maximum elevation,

3.71 ft Oct. IS (backwater from tide); minimum discharge, 13 cfs Jan. 5, 6 (elevation,

2.12 ft).

1932-56: Maximum discharge, 1,050 cfs Oct. 28, 1943 (elevation, 4.50 ft), from 

rating curve extended above 300 cfs; maximum elevation, 6.45 ft Feb. 16, 1936 (backwater 

from ice and tide); minimum discharge, 12.9 cfs Oct. 2, 1947; minimum elevation, 2.12 ft 

Jan. 5, 6, 1956.

Remarks. Records good except those for periods of backwater from tide or no gage-height 

record, which are fair. Plow regulated by cranberry bogs.

Rating tables, water year 1955-56,except periods of backwater from tide (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 30 May 1 to Sept. 30

2.12

2.2

2.4

2.6

2.8

3.2

13

24

62

120

199

314

2.14

2.2

2.4

2.6

3.0

16

122

262

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

62

60

55

55

55

58

62

62

62

62

60

58

58

C196

0314

C296

C247

C170

127

110

91

SI

54

170

73

79

75

70

?*

46

210

3,144

101

1.80

2.09

Nov.

98

87

94

56

65

57

57

^i-

^ff

70

94

94

88

85

80

78

78

72

75

83

83

80

78

78

75

72

72

72

65

36

2,342

78.1

1.39

1.56

Dec.

80

89

70

67

67

67

67

*65

58

19

15

26

49

58

58

60

60

60

60

60

60

60

75

47

45

45

49

55

60

58

82

1,791

57.8

1.03

1.19

Jan.

140

90

47

21

13

22

47

53

94

204

c24

c28

62

78

80

75

75

72

67

70

70

67

85

72

65

65

65

62

62

60

72

2,107

68.0

1.21

1.40

Feb.

75

80

91

94

104

104

124

127

117

120

153

IB?

131

120

110

107

104

131

148

153

153

81

80

94

104

114

114

117

120

3,323

115

2.05

2.21

Mar.

117

147

214

73

94

91

94

107

90

134

114

107

101

120

142

153

182

182

178

165

98

154

304 ^fe

67

117

134

134

247

219

124

4,279

138

2.46

2.84

Apr.

«

104

114

114

117

117

142

196

278

232

238

138

55

157

142

134

138

138

130

110

100

100

95

90

90

100

110

100

95

90

3,813

127

2.27

2.53

Hay

90

90

90

90

95

95

100

110

*140

146

60

97

83

81

128

58

128

128

32

75

123

65

83

81

111

121

39

83

86

86

83

2,877

92.8

1.66

1.91

June

86

157

236

172

141

76

41

83

86

86

86

86

83

81

81

78

75

75

75

73

73

78

78

78

83

83

81

83

83

78

2,755

91.8

1.64

1.83

July

73

70

60

58

73

83

81

78

78

114

142

49

17

32

110

127

75

70

70

65

129

168

IS?

137

106

91

81

78

75

70

67

2,679

86.4

1.54

1.78

Aug.

65

55

65

63

63

67

83

86

81

73

67

67

70

70

67

65

63

63

58

51

81

88

81

75

70

67

65

65

75

83

78

2,170

70.0

1.25

1.44

Sept.

65

65

65

30

58

63

58

53

43

77

43

49

58

55

53

53

53

53

22

li

56

55

88

82

51

51

75

113

83

75

1,761

58.7

1.05

1.17

Calendar year 1955: Max 330 Hln 15 Mean 86.7 Cfsm 1.55 In. 21.02

Water year 1955-56: Max 314 Hln 13 Mean 90.3 Cfsm 1.61 In. 21.95

* Discharge measurement made on this day. 

c Backwater from tide.

Note.~Ho gage-height record Apr. 19 to May 8; discharge estimated on basis of records for nearby 

stations.
170 MULLICA RIVER BASIN

Batsto River at Batsto, N. J.

Location.--Lat 39"38'33", long 74°39'00", on right bank 30 ft downstream from highway

 bridge at Batsto, Burlington County, and 1 mile upstream from mouth.

Drainage area. 70.5 sq mi.

Records available.--October 1927 to March 1939, October 1939 to September 1956.

Gage. Water-stage recorder. Concrete control since Mar. 24, 1939; prior to Mar. 24, 1939,

 wooden control at site 50 ft downstream. Datum of gage is 1.4 ft above mean sea level,

datum of 1929.

Average discharge. 28 years (1927-38, 1939-56), 125 cf s. 

Extremes. Maximum daily discharge during year, 528 cfs Oct. 17; minimum, 54 cfs Dec. 22

 (gage height, 2.08 ft).

1927-56- Maximum daily discharge, 1,310 cfs Aug. 24, 1933; minimum daily, 15 cfs 

Aug. 3, 1933.

A stage of 8.7 ft occurred Aug. 20, 1939, from floodmarks in recorder shelter. 

Remarks.--Records excellent except those above 150 cfs, which are good. 

Revisions. WSP 781: Drainage area. Revised figures of discharge, in cubic feet per sec-

 ond, for the water years 1930, 1933, 1936, and 1938, superseding those published in 

WSP 696, 741, 801, and 851, are given herewith:

1930 

Map. 9.

1935 

Nov. 2.

1933 

Aug. 23. 850

1,310

1,080

790

1938 

Sept.22.

23.

24.

25.

474

412

900

1,060

840

570

Month

Calendar year 1930 .......

Calendar year 1933 .......

Calendar year 1935. ......

Water year 1935-36. . .....

Calendar year 1938 .......

Cfs-days

_

_

-

_

_

-

55,134

55,951

Maximum

238

1,310

618

474

1,060

Minimum

22

15

37

69

Mean

84.0

139

151

153

Per square

mile

1.19

1.97

1.87

2.14

2.17

Runoff In 

Inches

16.18

26.73

29.06

29.55

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total 

Mean

Cfsm

In.

Oct.

74

71

71

67

66

66

69

71

74

74

74

71

69

166

172

368

528

437

319

232

185

155

135

120 

109

105

102

98

98

107

113

4,466 

144

2.04

2.36

Nov.

124

131

128

120

109

102

96

94

92

90

98

100

107

109

105

100

96

92

92

96

96

96

98

98 

94

92

88

87

85

8j5

2,998 

99.9

1.42

1.58

Dec.

81

79

78

78

78

*76

76

76

78

78

76

72

71

69

69

69

69

69

64

58

5656"

56

59 

61

63

63

63

56

58

58

2,113 

68.2

0.967

1.11

Jan.

56

56

58

58

59

61

61

61

61

71

81

88

94

98

96

92

87

81

79

81

81

79

78

76 

74

78

81

78

74

85

109

2,372 

76.5

1.09

1.25

Feb.

107

117

128

145

170

185

195

205

218

200

185

180

172

160

160

155

145

165

188

258

272

240

200

175 

162

150

145

148

142

5,072 

175

2.48

2.68

Mar.

138

135

138

135

131

126

122

124

133

140

148

138

135

158

190

309

338

549

340

268

245

235

235

250 

250

240

220

200

182

170

160

6,082 

196

2.78

3.21

Apr.

155

148

140

155

128

124

140

168

205

250

245

215

185

162

148

145

145

145

142

155

151

126

122

117 

115

117

120

124

122

117

4,471 

149

2.11

2.56

May

111

109

109

111

115

105

109

113

113

111

111

107

120

155

155

140

117

102

96

96

90

85

85

85 

85

78" 78

81

79

78

78

5,161 

102

1.45

1.67

June

81

96

122

145

158

155

140

117

100

92

94

92

88

85

*79

78

81

78

79

78

76

79

79

88 

98

105

98

88

81

76

2,906 

96.9

1.37

1.55

July

74

71

71

69

71

85

88

85

85

87

85

79

74

72

69

69

69

67

66

66

115

155

205

255 225"

182

150

140

152

155

122

5,514 

107

1.52

1.75

Aug.

109

100

90

85

87

96

115

120

126

115

100

92

85

85

81

78

74

71

71

71

90

96

98

92 

85

78

74

72

71

67

17

2,755 

88.2

1.25

1.44

Sept.

69

114

117

96

88

88

98

92

88

81

76

72

71

71

71

72

72

72

69

67

67

66

16

67 

69

69

71

78

85

74

2,354 

78.5

1.11

1.24

Calendar year 1955 ; Max 528 Mln 43 Mean 101 Cfsm 1.43 In. 19.53

Water year 1955-56 : Max 528 Mln 56 Mean 115 Cfsm 1.63 In. 22.18

* Discharge measurement made on this day.
MULLICA RIVER BASIN 171

Oswego River at Harrisville, N. J. 

(Formerly published as East Branch Wading River at Harrisville)

Location. Lat 39°39'47", long 74°31'26", 50 ft downstream from highway bridge at Harrisville, Burlington County, and half a mile upstream from confluence with West Branch.

Drainage area. 64.0 sq mi.

Records available. January 1931 to September 1956.

Gage. Water-stage recorder. Concrete control since June 23, 1939. Datum of gage is 

4T62 ft above mean sea level, datum of 1929.

Average discharge.--24 years (1931-38, 1939-56), 85.7 cfs.

Extremes.--Maximum discharge during year, 328 cfs Sept. 3 (gage height, 4.54 ft), occurred 

while gate in dam was open; minimum, 30 cfs Dec. 21, 22 Tgage height, 2.84 ft).

1931-56: Maximum discharge, 1,390 cfs Aug. 20, 1939 (gage height, 9.54 ft, from 

floodmark in recorder shelter), from rating curve extended above 640 cfs by logarithmic 

plotting; practically no flow for several hours on Oct. 26, 1932, while pond above 

station was filling.

Remarks. Records excellent except those above 200 cfs, which are good, 

occasionally by dam 200 ft above station.

Elating table, water year 1955-56 (gage height, In feet, and 

discharge, in cubic feet per second)

Plow regulated

2.8 

3.0 

3.2

3.5 

4.0 

4.5

166

256

322

Discharge, in cubic feet per second, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

40

40

40

38

40

51

51

49

48

46

44

43

41

73

130

106

108

84

76

70

65

61

61

59

74

63

56

78 

99

2,114

68.2

1.07

1.23

Nov.

86

74

72

70

67

63

61

59

59

59

78

80

76

70

67

63

59

56

63

72

72

74

74

80

70

59

54

52

49

48

1,986

66.2

1.03

1.15

Dec.

48

48

48

48

48

*46

44

44

48

52

51

48

46

44

44

44

43

43

43

34

31

30

31

32

37

37

34

32

32

32 

32

1,274

41.1

0.642

0.74

Jan.

 ZO

2&-

32

32

34

41

38

37

34

35

54

63

68

59

54

49

46

51

46

46

48

48

46

46

44

44

44

51

61

52

63 

_74

1,472

47.5

0.742

0.86

Feb.

70

76

99

97

99

94

120

122

101

92

99

113

113

101

92

86

84

128

153

145

122

106

97

90

94

97

90

90

94

2,964

102

1.59

1.72

Mar.

92

90

94

92

86

80

76

82

92

88

82

78

82

125

163

178

202

185

166

156

148

140

145

156

153

140

130

122

118

122 

120

3,783

122

1.91

2.20

Apr.

110

101

97

94

92

88

106

156

190

194

T5B" 200

135

115

108

115

130

113

101

97

90

86

82

80

80

88

94

90

84

80

3,364

112

1.75

1.95

May

74

78

106

115

ITS

101

104

104

97

110

108

92

84

78

68

65

59

59

58

56

52

54

54

49

38

41

61

80

59

52 

49

2,320

74.8

1.17

1.35

June

56

104

156

140

110

97

88

78

70

68

74

70

63

59

*56

54

63

70

63

58

59

63

59

80

76

67

61

59

56

52

2,229

74.3

1.16

1.30

July

70

79

49

48

49

52

51

49

52

52

49

46

43

43

43

43

44

43

41

40

131

212

196

148

110

101

94

86

78

68 

61

2,271

73.3

1.15

1.32

Aug.

58

56

54

51

58

65

80

*84

70

63

58

63

70

68

65

59

58

52

51

51

78

80

74

67

59

56

54

48

41

41 

51

1,883

60.7

0.948

1.09

Sept.

51

120

321

304

228

148

135

113

94

82

74

70

63

59

59

59

59

59

56

54

52

48

52

58

52

49

49

61

63

61

2,753

91.8

1.43

1.60

Calendar year 1955: Max 246 Min 4.4 Mean 65.5 Cfsm 1.02 In. 15. SB

Water year 1955-56: Max 321 Min 30 Mean 77.6 Cfsm 1.21 In. 16.51

Peak discharge (base. 225 cfs).--July 22 (6 a.m.) 243 cfs (3.91 ft); Sept. 3 (1O p.m.) 328 cfs 

(4.54 ft).

* Discharge measurement made on this day.
172 ABSECON CREEK BASIN

Absecon Creek at Absecon, N. J.

Location. Lat 39°25'45", long 74°31'16", on right bank 30 ft downstream from Doughty 

Pond of Atlantic City Water Department, 1 mile west of Absecon, Atlantic County, and 

3 miles upstream from mouth.

Drainage area. 16.6 sq. mi.

Records available.--December 1923 to April 1929, June 1933 to December 1938, May 1946 to 

September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is at mean sea level, 

datum of 1929. Prior to May 1946, water-stage recorder and wooden control at same site 

at datum 0.16 ft lower.

Ay erage d is charge . 19 years (1924-28, 1933-38, 1946-56), 27.6 cfs (adjusted for diversion).

Extremes.--1923-29. 1933-38, 1946-56: Maximum daily discharge, 307 cfs Sept. 6, 1935; no 

flow July 5-18, 1949, Nov. 27 to Dee. 19, 1951, Jan. 28, 29, 1954.

Remarks.--Records fair. Figures of daily discharge represent flow at gage only. Diversion from Doughty Pond for municipal supply of Atlantic City. Plow regulated by 

Doughty Pond, 30 ft above station and by Kuehnle Reservoir, l| miles above station.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

3.3

2.4

1.2

.8

78

1.2

2.8

3.6 

3.8

1.9

1.5

.8

.8

54

TZ

65

30

16

11

7.3

6.6

7 .3

2.8

6.8

7.9

2.8

4.9

3.8

5.4

15 

23

366.5

11.8

8.46

Nov.

15

7.9

8.6

20

12

1.9

1.2

373

5.4

6.6

24

18

13

12

9.3

9.3

14

7.9

8.6

20

8.4

6.6

7.9

11

6.6

9.4

4.9

12

7.3

7 3

299.4

9.98

7.28

Dec.

3.8

3.3

6.0

7 .3

10

6.0

2.4

479

11

16

6.6

6.6

6.0

6.0

6.6

6.0

5.4

4.9

4.9

4.9

4.3

3.8

3.8

3.8

4.3

4.3

3.8

2.8

2.8

3.3

2.8

168.4

5.43

8.03

Jan.

2.8

2.8

3.3

3.8

4.9

3.8

3.8

6.0 

7.3

15

16

20

26

14

4.9

1.5

17

7.6

2.4

7.3

7.3

6.6

6.6

6.6

6.0

6.0

5.4

5.4

6.6

10 

10

246.7

7 .96

7.39

Feb.

7.9

12

17

17

18

16

30

17

14

13

15

19

15

12

13

11

12

26

20

17

16

14

10

16~7.3

14

10

16

9.2

434.4

15.0

7.13

Mar.

l5~7.9

13

17

7.9

11

11

19 

16

11

12

12

*15

32

32

11

36

27

38

18

19

20

22

32

20

15

16

15

18

23

17

605.8

19.5

7.48

Apr.

14

13

15

17

17

14

30

if

18

18

17

16

16

17

20

20

17

18

15

16

15

18

18

22

26

23

21

19

22

577

19.2

7.15

May

9.3

13

21

22

21

19

24

20

16

16

14

15

19

16

15

19

7.9

12

11

20

16

13

15

10

5.4

7.9

14

20

10

10 

10

461.5

14.9

9.10

June

9.3

32

39

26

18

54

74

31 

10

51

49

22

7.9

1.2

_J3

.8

.8

.8

.8

.8

.8

.8

1.2

.8

1.2

1.2

1.2

1.2

1.2

1.2

440.0

14.7

14.2

July

1.2

1.2

1.2

1.2

-.8.

.8

.8

.8 

13

21

13

8.6

6.0

7.3

2.8

2.8

2.8

2.8

2.4

1.5

24

47

3T

17

12

7.9

14

22

28

21 

14

329.9

10.6

12.5

Aug.

11

8.6

7.3

6.0

9.3

17

19

15 

8.6

»6.0

9.3

2.4

15

19

14

8.6

4.3

1.5

1.5

1.2

9.6

17

13

12

6.0

4.9

4.9

4.3

2.8

3.3

265.2

8.55

14.2

Sept.

2.8

1.9

378

6.0

6.0

5.4

13

13 

11

7.3

7.3

6.0

5.4

6.0

6.0

7.3

9.3

12

4.9

9.7

3.3

1.9

4.3

7.9

7.9

7.3

10

19

13

11

229.7

7.66

9.74

Calendar year 1955: Max 93 Min 0.2 Mean 9.10

Water year 1955-56: Max 74 Min 0.8 Mean 12.1

* Discharge measurement made on this day.

t Diversion above station from Doughty Pond for municipal supply of Atlantic City, equivalent in 

cubic feet per second; for calendar year 1955, 9.03 cfs; for water year 1956, 9.40 cfs.
GREAT EGG HARBOR RIVER BASIN 173

Great Egg Harbor River at Polsom, N. J.

Location. Lat 39°35'42", long 74°51'06", on left bank 25 ft upstream from bridge on 

State Highway 54, 1 mile south of Polsom, Atlantic County, and 2 miles upstream from 

Pennypot Stream.

Drainage area. 56.3 sq mi.

Records available. September 1925 to September 1956. Prior to October 1947, published 

as Great Egg River at Polsom.

Gage. Water-stage recorder. Concrete control since Nov. 26, 1934. Datum of gage is 

53.32 ft above mean sea level, datum of 1929. Prior to Mar. 6, 1941, water-stage recorder at site 100 ft downstream at same datum. Mar. 6 to Oct. 5, 1941, staff gage at 

site 145 ft downstream at datum 0.25 ft higher.

Average discharge. 31 years, 83.9 cfs.

Extremes. Maximum discharge during year, 248 cfs July 24 (gage height, 4.93 ft); minimum, 

39 cfs Sept. 22, 23, 24 (gage height, 3.65 ft).

1925-56: Maximum discharge, 1,440 cfs Sept. 3, 1940 (gage height, 9.09 ft); minimum, 19 cfs Aug. 5, 1931.

Revisions . Figures of maximum discharge for the water years 1928 and 1933 have been 

revised to 210 cfs Apr. 29, 30, 1928 (gage height, 5.07 ft) and 700 cfs Aug. 25, 1933 

(gage height, 7.56 ft), superseding those published in WSP 661 and 741, respectively.

Remarks. Records excellent.

Revisions. WSP 781: Drainage area. Revised figures of discharge, in cubic feet per 

second, in high-water period in the water year 1933, superseding those published in 

WSP 741, are given herewith:

1933 

Aug. 23,

24.

25.

26.

332

615

695

642

1933-Con. 

Aug. 27.... ..... 490

28......... 340

29......... 254

30......... 209

Month

Calendar year 1933. ............

Maximum

695

695

370

Minimum

37

26

30

Mean

168

101

93. 1

Per square 

mile

2.98

1.79

1.74

Runoff In 

inches

3.44

24.27

23.66

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

3.65

4.0

4.9

94

243

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

48

46

44

43

±1

41

44

44

49

50

49

46

43

55

103

137

208

230

258

170

139

114

94

80

74

71

67

64

63 

66

74

2,605

84.0

1.49

1.72

Nov.

79

86

91

91

86

77

69

66

64

63

69

74

79

82

82

79

74

67

64

66

67

67

67

67

66

64

61

60

58 

56

2,141

71.4

1.27

1.41

Dec.

56

55

55

55

55

55

54

54

54

55

55

54

52

50

50

50

49

49

49

48

46

44

4T

44

46

46

46

46

44 

44

44

1,548

49.9

0.886

1.02

Jan.

43

43

43

44

44

44

44

44

44

54

66

74

80

86

56

79

71

67

63

61

61

58

56

55

54

54

52

52

52 

60

71

1,805

58.2

1.03

1.19

Feb.

77

86.

98

108

124

135

147

154

152

143

134

131

126

122

117

110

101

108

127

154

167

154

*135

119

110

105

101

101

98

3,544

122

2.17

2.34

Mar.

96

94

92

91

91

87

84

86

91

96

103

105

103

110

142

183

219

224

205

190

172

155

145

143

147

147

140

131

120

117

112

4,021

130.

2.31

2.66

Apr.

110

107

103

99

96

96

99

119

147

170

167

150

132

119

108

105

107

108

108

105

99

94

89

86

56

86

89

92

92 

89

3,257

109

1.94

2.15

May

S4

80

82

86

86

86

89

91

92

91

87

82

80

84

82

77

72

67

64

63

61

60

56

55

54

54

55

60

58

56

55

2,249

72.5

1.29

1.49

June

54

64

107

129

146

145

126

98

75

69

77

91

94

84

69

60

58

56

55

52

52

55

56

66

69

67

60

58

63

55

2,312

77.1

1.37

1.53

July

52

52

48

44

55

58

55

52

61

71

67

60

54

54

63

61

55

52

48

44

87

175

232

243

206

155

124

112

117

105

84

2,746

88.6

1.57

1.81

Aug.

74

66

61

55

58

67

75

*80

75

66

61

55

58

66

58

55

50

46

44

41

60

72

72

64

56

52

48

44

43

41

41

1,804

58.2

1.03

1.19

Sept.

41

46

46

43

41

46

77

82

86

72

60

52

50

46

44

46

46

*44

43

43

41

39

39

40

41

40

40

48

52

50

1,484

49.5

0.879

0.98

Calendar year 1955: Max 232 Mln 21 Mean 67.6 Cfsm 1.20 In. 15.25

Water year 1955-56: Max 243 Mln 39 Mean 80.6 Cfsm 1.43 In. 19.49

* Discharge measurement made on this day.
174 MAURICE RIVER BASIN

Maurice River at Norma, N. J.

Location. Lat 39°29'42", long 75°04'34", on right bank just upstream from Almond Road 

Bridge at Norma, Salem County, three-quarters of a mile downstream from Blaekwater 

Branch.

Drainage area. 113 sq mi.

Records available. June 1932 to September 1956.

Gage. Water-stage recorder. Concrete control since Dee. 27, 1937. Datum of gage is 

46.94 ft above mean sea level, datum of 1929.

Average discharge. 24 years, 170 cfs.

Extremes. Maximum discharge during year, 326 efs Mar. 19 (gage height, 3.33 ft); minimum 

daily, 57 efs Oct. 3, 4.

1932-56: Maximum discharge, 7,360 cfs Sept. 2, 1940 (gage height, 8.72 ft), from 

rating curve extended above 3,000 efs by logarithmic plotting; minimum daily, 27 cfs 

Sept. 25, 1932.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Occasional regulation by powerplant above station.

Revisions (water years). WSP 1382: 1933.

Rating table, water- year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

2.49 

2.7 

3.0 

3.4

57

102

190

360

Discharge, In cubic feet per1 second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

102

93

57

57

63

73

79 

84

102

151

125

65

59

90

194

201

T54

197

194

180

167

151

123

90

90

93

93

93

95

115

128

3,598

116

1.03

1.18

Nov.

128

137

142

134

128

118

115 

112

110

107

131

148

140

140

131

128

88

90

102

115

115

115

120

120

115

110

107

107

102

97

3,552

118

1.04

1.17

Dec.

95

93

93

93

93

93

93 

93

 90

95

93

93

86

84

88

95

9790"

86

84

81

77

77

77

77

77

77

77

77

77

77

2,678

86.4

0.765

0.88

Jan.

77

77

77

77

77

75

75 

75

75

102

154

128

81

88

105

112

112

112

107

105

100

97

95

93

88

83

84

84

84

90

140

2,934

94.6

0.837

0.97

Feb.

125

134

151

157

170

174

197 

HOI

201

205

201

205

194

183

174

170

167

187

197

197

201

205

201

190

190

194

187

148

151

5,257

181

1.60

1.73

Mar.

151

151

154

142

177

140

m160

157

157

157

160

205

281

281

290

299

322

294

281

268

248

205

235

212

190

205

208

201

227

6,381

206

1.82

2.10

Apr.

208

164

157

167

174

174

190 

248

239

227

227

231

227

227

212

208

194

190

187

180

170

137

T45

177

167

160

164

160

145

148

5,604

187

1.65

1.84

May

148

148

157

157

142

142

164 

187

183

*167

137

142

148

160

157

148

148

187

145

134

112

115

118

118

110

102

112

123

118

115

118

4,362

141

1.25

1.44

June

118

134

151

151

160

167

151 

140

134

107

118

128

131

*128

115

105

105

118

110

90

95

93

75

118

107

107

102

93

86

128

3,565

119

1.05

1.17

July

95

95

93

93

SB

97

105 

115

107

110

115

120

100

102

105

86

79

71

69

?§

192

299

256

260

252

154

190

252

197

208

151

4,325

140

1.24

1.42

Aug.

131

125

118

112

123

128

125 

123

120

115

102

95

93

107

105

107

95

90

88

88

115

115

115

112

105

110

93

97

86

77

II

3,290

106

0.938

1.08

Sept.

77

95

79

86

77

a70

a!40 

208

£16

190

167

131

84

95

112

148

95

95

93

86

84

84

75

63

69

79

84

95

95

95

3,167

106

0.938

1.04

Calendar year 1955: Max 538 Mln 33 Mean 122 Cfsm 1.08 In. 14.68

Water year 1955-56: Max 322 Mln 57 Mean 133 Cfsm 1.18 In. 16.02

Peak discharge (base. 575 cfs). No peak above base. 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed graph based on recorded range In 

stage and gage-height graph for adjacent days.
MAURICE RIVER BASIN 175

Manantico Creek near Millville, N. J.

Location. Lat 39°25'12", long 74°58'00", on right bank at upstream side of MillvilleMilmay highway bridge 4 miles northeast of Millville, Cumberland County, and 7 miles 

upstream from mouth.

Drainage area. 22.3 sq mi.

Records available. June 1931 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 36.63 ft above mean 

sea level, datum of 1929.

Average discharge. 25 years, 37.8 cfs.

Extremes. Maximum discharge during year, 126 cfs Oct. 15 (gage height, 2.37 ft); minimum, 

7.6 cfs June 12, 13, 25 (gage height, 1.04 ft).

1931-56: Maximum discharge, 1,050 cfs Aug. 20, 1939 (gage height, 6.21 ft), from 

rating curve extended above 300 cfs by logarithmic plotting; minimum, 1.4 cfs Aug. 16- 

18, 1936.

Remarks. Records good except those for periods of no gage-height record and those for 

May 16 to July 19, which are fair. Diurnal fluctuation caused by small powerplant 

above station.

Rating tables, water year 1955-56 (gage height. In feet, and

discharge, In cubic feet per second) 

(Backwater from rocks June 14, 30, July 1, 2, 11)

Oct. 1 to July 31 Aug. 1 to Sept. 30

1.05 

1.1 

1.5 

2.1

8.0

10

35

92

1.2 

1.4 

1.7

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

20

20

20

19

IS

19

20

20

22

22

20

19

19

27

90

84

42

21

26

27

26

25

24

22

23

23

24

23

22 

37

44

869

28.0

1.26

1.45

Nov.

34

2?

27

26

25

24

23

23

22

23

27

28

28

a27

a26

a25

a24

a23

a23

a24

a25

a25

a24

a23

a22

a21

a20

al9

15 

19

728

24.3

1.09

1.21

Dec.

19

20

20

20

21

21

20

20

*21

a22

a21

a21

a20

a20

a20

a!9

19

19

18

IS

18

18

18

18

20

20

19

19

18

1 J.O ft

1 ft JLO

603

19.5

0.874

1.01

Jan.

18

IS

18

18

18

18

18

18

18

24

31

31

26

24

24

24

25

26

25

25

23

22

22

21

20

19

18

18

19 

22

28

679

21.9

0.982

1.13

Feb.

28

?§

38

40

40

39

*5B

BTJ

45

38

37

41

43

40

36

32

29

36

47

48

41

37

34

34

36

38

35

35

36

1,120

38.6

1.73

1.87

Mar.

33

32

32

32

32

31

30

3T

35

37

35

34

34

45

65

73

6T

64

58

51

49

49

50

51

46

46

43

41

40

41

41

1,349

43.5

1.95

2.25

Apr.

51

45

39

37

37

39

44

53

56

5T

44

40

37

37

36

39

45

45

41

38

34

29

3?

32

32

34

37

37

37 

36

1,194

39.8

1.78

1.99

May

33

32

34

35

35

35

34

37

35

32

32

31

29

30

31

24

16

5?

28

27

31

27

57

45

47

68

3T

41

34 

29

28

1,055

34.0

1.52

1.76

June

29

56

79

56" 88

65

41

36

34

34

25

9.O

23^ 8.0

42

41

51

83

68

45

36

39

62

46

33

23

20

32

27 

25

1,280.0

42.7

1.91

2.13

July

24

23

23

24

24

30

30

26

26

26

24

*22

21

20

19

18

TS

28

50

53

81

89

55

40

37

36

44

69

68

59

1,189

38.4

1.72

1.98

Aug.

42

36

32

30

32

36

38

35

30

27

25

24

24

27

26

25

24

23

22

23

39

46

a3T

a32

27

25

24

23

22

21

2T

897

28.9

1,30

1.50

Sept.

21

20" 20

20

20

21

30

35

3TT

26

24

23

23

22

21

21

21

23

22

21

24

21

21

21

21

21

20

24

23 

23

683

22.8

1.02

1.14

Calendar year 1955: Max 164 Mln 7.6 Mean 25.2 Cfsm 1.13 In. 15.33

Water year 1955-56: Max 90 Mln 8.0 Mean 31.8 Cfsm 1.43 In. 19.42

Peak discharge (base, 125 cfs). Oct. 15 (1:30 p.m.) 126 cfs (2.37 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for

Batato River at Batsto and Maurice River at Norma.
176 COHANSEY RIVER BASIN

Loper Run near Bridgeton, N. J.

Location. Lat 39°28'20", long 75°14'55", on right bank of Silver Lake, 0.4 mile upstream 

from mouth and 4 miles northwest of Bridgeton, Cumberland County.

Drainage area. 2.34 sq mi.

Records available. August 1937 to September 1956.

Sage. Water-stage recorder above dam with concrete siphon spillway. Datum of gage is 

57.10 ft above mean sea level, datum of 1929.

Average discharge. 18 years (1937-46, 1947-56), 1.40 cfs.

Extremes. Maximum daily discharge during year, 12 cfs July 21, Sept. 6; no flow for part 

of some days following siphon action.

1937-56: Maximum daily discharge, 94 cfs Sept. 1, 1940; no flow for many days.

Remarks. Records fair. Some regulation by Silver Lake.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

0.73

.73

.64

.64

.64

.73

.73 

.83

.93

.83

.73

.64

.64

1.25

6.5

.52

764 

.64

.64

.64

.64

.64

.64

.64

.64

.64

.64

.64

.64 

5.5

1.25

32.58

1.05

0.449

0.52

Nov.

1.05

.83

.83

.85

.83

.75

!?5

.75

.85

2.00

1.36

1.03

.95

.95

.95

.85

.75

.93

1.14

.93

.95

.93

.93

.95

.83

.83

.83

.83

. 83

27.71

0.924

0.595

0.44

Dec.

0.85

.85

.85

.85

.85

.85

.83 

.83

.83

.83

.85

.73

.73

.73

.73

.73

.73 

.75

.75

.73

.75

.64

.64

.64

.73

.73

.73

.75

.64 

.64

.64

25.19

0.748

0.520

0.37

Jan.

0.64

.64

.64

.64

.64

.64

.64 

.64

.64

1.03

1.14

1.14

1.03

.93

.85

.83

.83 

.73

.73

.83

.73

.75

.75

.73

.64

.64

.64

.64

.73 

" 95

24.09

0.777

0.332

0.38

Feb.

0.93

1.14

1.60

1.56

1.36

1.56

5.9

 XO

tfi

.75

1.05

1.36

1.05

.95

.93

.93

.93 

1.75

1.60

1.14

1.05

.95

.95

.93

1.05

1.14

1.05

.93

.93

35.92

1.17

0.500

0.54

Mar.

0.93

.93

.95

.93

.93

.93

.93 

1.14

1.25

1.03

.95

.95

1.14

64

T7§6

5.1 iffi

1.48

1.36

1.14

1.14

1.14

1.14

1.03

1.03

1.03

1.05

1.14 

1 25

43.63

1.41

0.603

0.69

Apr.

1.05

1.05

1.03

1.14

1.14

1.14

1.75 

1.86

TT25

1.14

1.03

*1.03

.95

795

1.05

1.25

1.14 

1.05

1.03

.93

.95

.93

.95

1.05

1.05

1.14

1.14

1.03

1.03 

1.03

53.04

1.10

0.470

0.53

May

0.83

.93

1.14

1.03

1.03

.93 ts1.03

.93

*.83

.85

.85

.83

.85

.85

.85 

^73

.73

.83

.83

.83

.83

.85

.73

.75

1.25

1.25

1.05 

93

93

29.10

0.939

0.401

0.46

June

0.93

3. 7

1.14

1.05

.85

.75

.73 

.64

.64

.73

1.25

.85

*.64

.56

.47

.47

.47 

.47

.47

.59

.64

.85

.75

.75

.64

.47

.39

.39

Til

22.58

0.753

0.322

0.56

July

0.32

.32

.32

.32

.64

.73

.64 

.56

.64

.64

.56

.32

.32

.32

.25

.25

.25 

.25

.25

.25

12

1.56

.83

.73

.64

.56

7.9

10

8.4 

1.36

. 85

52.76

1.70

0.726

0.84

Aug.

0.75

.64

.56

.56

1.25

1.25

.93

.75

*.64

.64

.56

.56

.64

1.75

1-05

.75

.64 

.56

.47

.47

1.25

.95

.73

.64

.56

.56

.56

.56

.56 

.56

.56

22.79

0.755

0.514

0.56

Sept.

0.64

.64

.56

.56

.56

12

7.1 

.47

.56

.56

.56

.56

.56

.56

.56

.64

.64 *.64

.64

.56

.56

.56

.56

.56

.56

.56

.64

.85

.73 

.75

55.86

1.20

0.513

0.57

Calendar year 1955: Max 10 Min 0.05 Mean 0.936 Cfsm 0.400 In. 5.43

Water year 1955-56: Max 12 Min 0.25 Mean 1.04 Cfsm 0.444 In. 6.06

Discharge measurement made on this day.
DELAWARE RIVER BASIN 177

East Branch Delaware River at Margaretville, N. Y.

Location. Lat 42°08'40", long 74 0 39'15", on right bank at downstream side of bridge to 

fairgrounds at southwest end of Margaretville, Delaware County, if miles downstream 

from Bush Kill.

Drainage area. 163 sq mi.

Records available. February 1937 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,302.38 ft above mean sea level, datum of 

1929. Prior to Sept. 9, 1937, chain gage and Sept. 9, 1937, to Aug. 17, 1944, waterstage recorder, at same site at datum 1.00 ft higher.

Average discharge. 19 years, 314 ofs.

Extremes. Maximum discharge during year, 13,300 cfs Oct. 16 (gage height, 12.87 ft), from 

rating curve extended above 8,600 cfs as explained below; minimum, 15 cfs Aug. 27, 28 

(gage height, 1.365 ft).

1937-56: Maximum discharge, 15,700 cfs Nov. 25, 1950 (gage height, 13.84 ft), from 

rating curve extended above 8,600 cfs by logarithmic plotting; minimum, 6.0 cfs Aug. 8, 

1949 (temporary regulation, cause unknown); minimum gage height, 0.89 ft Sept. 30, 

Oct. 1, 1943, present datum.

Remarks. Records good except those for periods of ice effect or fragmentary gage-height 

record, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, 

In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 10 to Feb. 26)

Oct. 16 to Apr. 16, 

July 11 to Sept. 30 Apr. 17 to July 10

2.2 

2.7 

4.0 

6.0 

8.0

85

259

896

2,340

4,390

1

1

1.8

2.5

3.0

37

43

16

24

120

350

550

4.0

6.0

8.0

10.0

12.0

1,010

2,450

4,430

7,450

11,400

1.5 

2.0 

2.5

3.0 

4.0 

5.0 

7.0

18

146

297

492

1,010

1,660

3,340

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

167

133

117

108 

102

243

284

373

310

267

247

223

192

288

3,440

10,000

4,430

2,260

1,550

1,070

*858

702

591

576

637

497

429

381

350

979

1,030

32,834

1,059

6.50

7.49

Nov.

816

702

*637

877 635"

616

*566

558

509

465

513

493

425

578

517

700

676

570

542

501

461

413

389

389

327

305

283

*273

230

210

15,221

507

3.11

3.47

Dec.

190

195

207

364 322"

250

215

232

232

216

200

198

185

165

176

140

140

140

126

74

70

74

92

109

254

145

74

64

66

68

62

5,045

163

1.00

1.15

Jan.

62

62

73

70 

65

54

48

35

52

480

686

633

*565

405

370

335

298

245

230

240

210

204

191

165

160

145

145

125

130

158

173

6,814

220

1.35

1.55

Feb.

125

*120

126

if

100

112

109

109

129

126

167

152

120

163

194

152

173

170

152

140

112

120

120

450

779

*449

385

320

5,596

193

1.18

1.28

Mar.

290

335

461

465 

362

354

1,430

1.890

1,490

1,100

1,090

*1,090

839

756

637

500

480

460

390

350

330

310

300

290

250

250

245

225

215

210

201

17,655

570

3.50

4.03

Apr.

198

267

598

1,850 

3.480

2,890

2,690

1,840

1,420

1,240

 1,200

1,240

1,150

1,050

1,160

2,550

2,800

*1,830

1,370

1,070

890

1,020

*941

874

755

724

662

1,050

2,320

2,520

43,649

1,455

8.93

9.96

May

1.540

1,160

1,080

963 

825

698

618

506

424

420

381

362

365

332

*318

297

280

274

245

221

203

191

197

186

166

154

177

174

149

138

T43

13,187

425

2.61

3.01

June

235

228

373

*350 

332

300

267

236

215

203

200

168

157

122

135

157

232

154

124

111

106

98

90

101

83

70

72

70

54

£L

5,090

170

1.04

1.16

July

42

38

36

32 

*152

*167 T5~3

77

64

67

65

62

65

103

85

72

66

59

*54

55

69

70

92

80

68

61

56

50

44

41

39

2,134

68.8

0.422

0.49

Aug.

35

30

30

28 

28

28

29

*25

20

20

19

18

20

39

30

23

20

18

35

30

26

*23

20

18

18

17

16

*16

20

22

42

763

24.6

0.151

0.17

Sept.

54

45

40

30 

25

23

33

24

20

19

18

17

17

17

18

79

f!20

*f98

58

119

110

70

78

539

264

182

146

129

117

103

2,612

87.1

0.534

0.60

Calendar year 1955: Max 10,000 Mln 8.5 Mean 375 Cfsm 2.30 In. 31.24

Water Water year year 1955-56: 1955-56: Max Max 10,000 10JOOO Mln Mln 16 16 Mean Mean 411 411 Cfsm Cfsm 2.52 2.52 In. In. 34.36 34.36

Peak discharge (base. 2.800 cfs). Oct. 16 (5:15 a.m.) 13,300 cfs (12.87 ft): Apr. 5 (about 7p.m. 

4,240 cfs (7.84 ft); Apr. 16 (11 p.m.) 3,900 cfs (7.54 ft); Apr. 30 (4:30 a.m.) 2,930 cfs (6.56 ft) 

* Discharge Discharge measurement measurement made on this day. f Fragmentary gage-height re---J - J '-- 1--

Note. Stage-discharge rela 

20-23, Dec. 26 to Jan. 2, Jan 

28, 29.

le on this day.

 ecordj discharge computed from partly estimated gage heights, 

ition affected by Ice Nov. 29 to Dec. 2, Dec. 6, 7, 11, 14, 16, 1 

i. 6-10, 15, 19-21, 24-29, Feb. 1, 2, 4-7, 14, 22-25, 29, Mar. 1,

17,

16-26,
178 DELAWARE RIVER BASIN

Platte Kill at Dunraven, N. Y.

Location. Lat 42°08 I 00", long 74°41'40", on right bank at upstream side of highway bridge 

in Dunraven, Delaware County, 0.6 mile upstream from mouth and 2^ miles northeast of 

Arena.

Drainage area. 34.7 sq mi.

Records available. October 1941 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,296.23 ft above mean 

sea level, datum of 1929.

Average discharge. 15 years, 65.8 cfs.

Extremes. Maximum discharge during year, 1,660 cfs Oct. 16 (gage height, 5.81 ft), from 

rating curve extended above 940 cfs as explained below; minimum, 2.1 cfs Sept. 14 (gage 

height, 2.15 ft).

1941-56: Maximum discharge, 3,810 cfs Nov. 25, 1950 (gage height, 8.01 ft), from 

rating curve extended above 940 cfs on basis of slope-area determination at gage height 

7.49 ft; minimum, 0.9 cfs Sept. 26, 1943; minimum gage height, 2.065 ft Sept. 4, 1953.

Remarks.--Records good except those for periods of ice effect, faulty intake action, or 

backwater from construction activity, which are fair. Slight regulation by sawmills 

about 2 miles above station.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

56

44

41

37

35

113

*86

128

101

89

79

68

61

66

457

~721 1.160

404

*273

190

152

119

97

108

107

84

71

64

60

195

164

5,430

175

5.04

5.82

Nov.

144

126

120

176

123

112

101

95

*86

79

91

84

73

117

99

171

144

131

121

105

95

82

81

78

64

61

56

*54

41

43

2,953

98.4

2.84

3.16

Dec.

39

39

42

84

70

60

52

54

54

47

44

42

37

32

34

28

30

28

25

16

15

16

20

23

60

31

16

14

15

15

14

1,096

35.4

1.02

1.17

Jan.

14

14

17

16

15

12

10

9.0

15

122

150

*130

98

78

76

66

52

43

41

43

37

36

34

29

29

26

26

23

24

30

*29

1,344.0

43.4

1.25

1.44

Feb.

24

21

24

M

21

22

22

24

29

28

41

35

29

41

39

36

41

39

36

31

26

28

*28

180

173

121

102

90

1,376

47.4

1.37

1.47

Mar.

78

94

123

112

92

90

398

451

322

214

200

*200

165

140

116

96

90

86

76

74

70

64

56

50

44

52

44

40

38

38

3,759

121

3.49

4.03

Apr.

s117

528

887

686

625

411

303

269

*265

250

222

207

229

508

563

*359

252

190

155

190

187

168

145

145

135

196

486

494

9,267

309

8.90

9.93

May

285

211

177

145

122

111

94

76

68

71

58

5.5

53

*55

*56

56

51

59

53

47

44

42

44

38

34

31

39

36

30

"va

CO

2,297

74.1

2.14

2.46

June

51

48

65

*57

60

55

49

44

40

41

40

31

32

25

28

20

18

15

13

12

11

12

11

13

8.9

7.7

9.6

9.8

8.5

7.*

842.9

28.1

0.810

0.90

July

6.9

6.7

6.1

*4T~ 5.7

26

15

11

13

13

9.9

8.4

11

16

10

8.7

8.0

7.0

 6.1

6.9

14

11

26

18

14

12

13

11

8.9

8.2

7.6

386.1

12.5

0.360

0.41

Aug.

7.0

6.6

5.6

5.2

5.0

5.6

*6.9

5.2

4.7

4.1

3.9

3.8

5.5

13

5.9

4.7

4.1

4.8

9.9

6.3

5.1

4.4

4.0

4.1

4.0

3.6

3.4

e5T6~

»c7.0

c6.4

190.4

6.14

0.177

0.20

Sept.

c!7

ClO

c7.6

c6.2

c5.2

C4.5

c4.7

c4.1

C3.6

C3.3

C3.1

3.1

3.1

3.1

4.3

37

24

*20

12

46

25

20

51

~97 229

70

54

48

40

36

891.9

29.7

0.856

0.95

Calendar year 1955: Max 1,160 Mln 1.6 Mean 73.4 Cfsm 2.12 In. 28.70

Water year 1955-56: Max 1,160 Mln 3.1 Mean 81.5 Cfsm 2.35 In. 31.95

Peak dlscharse (base. 600 cfs). Oct. 16 (3 a.m.) 1.660 cfs (5.81 ft): Mar. 8 (3:15 D.m. ) 845 cfs

(4.88 ft); Apr. 4 (7:45 p.m.) 1,320 cfs (5.43 ft); Apr. 16 (9 p.m.) 812 cfs (4.85 ft); Apr. 30

(4 a.m.) 617 efs (4.59 ft); Sept. 24 (2:15 a.m.) 696 cfs (4.68 ft).

* Discharge measurement made on this day.

c Backwater from construction activity.

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 2, Dec. 7, 8, 10, 11, Dec. 13 to 

Jan. 10, Jan. 28 to Feb. 8, Feb. 14-25, Feb. 28 to Mar. 2, Mar. 4-6, 17-30, Apr. 1, 2. Faulty 

Intake action Jan. 11-27, Mar. 11-16, Apr. 25-27, June 27, 28; discharge computed on basis of gage 

heights, outside gage readings, appearance of gage-height record before and after flushing Intake, 

notes by engineers, weather records, and records for other stations in the basin of East Branch 

Delaware River.
DELAWARE RIVER BASIN 179

Mill Brook at Arena, N. Y.

Location. Lat 42"06'25", long 74°43'45", on left bank 0.4 mile upstream from highway

 bridge, three-quarters of a mile southeast of Arena, Delaware County, and 1^ miles upstream from mouth. 

Drainage area. 25.0 sq mi.

Records available. February 1937 to September 1956. 

Gage. Water-stage recorder. Datum of gage is 1,298.54 ft above mean sea level, datum of

 Board of Water Supply, City of New York. Prior to Oct. 17, 1939, staff gage at site 

0.2 mile downstream at different datum. Oct. 17 to Dec. 8, 1939, staff gage at present 

site at different datum.

Average discharge. 19 years, 58.0 cfs.

Extremes. Maximum discharge during year, 1,390 cfs Oct. 15 (gage height, 6.76 ft), from 

rating curve extended above 640 cfs on basis of slope-area determinations at gage 

heights 8.36, 9.13, and 9.92 ft; minimum, 3.6 cfs Aug. 28 (gage height, 2.875 ft),

1937-56: Maximum discharge, 4,500 cfs Sept. 21, 1938, from rating curve extended 

above 960 cfs by logarithmic plotting on basis of velocity-area study; maximum gage 

height, 9.92 ft Nov. 25, 1950; minimum discharge observed, 1.2 cfs Sept. 25, 26, 1939 

(gage height, 0.71 ft, site and datum then in use).

Revisions. The maximum discharge for the water year 1937 has been revised to 1,550 

cfs May 15, 1937 (gage height, 5.0 ft, from twice-daily staff-gage readings), superseding figure published in WSP 821.

Remarks . Records excellent except those for periods of ice effect, which are fair.

Revisions. Revised figures of discharge, in cubic feet per second, for some high-water

 periods in the water year 1937, superseding those published in WSP 821, are given hereWlfch: 1937 1937-Con.

Feb. 22......... 450 May 14......... 279

Apr. 6......... 360 15......... 771

7......... 244 16......... 286

Month

May. .......................

Cfs -days

3,966

3,295

Maximum

450

360

771

Minimum

32

24

28

Mean

77.9

132

106

Per square

mile

3.12

5.28

4.24

Runoff In 

Inches

3.24

5.90

4.90

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 16, 

Sept. 17-3O Apr. 17 to Sept. 17

3.0

3.1 

3.3

3.7

6.1 

9.2

45

4.1 92

4.5 191

5.0 391

6.0 915

2.88 

3.0 

3.3 

3.7

3.7 

7.0

47

4.1 

4.5 

5.0 

6.0

191

391

915

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Of sm

In.

Oct.

38

32

29 

25

Si.

4O

54

84

76

64

56

49

43

44

434

759

43O

259

176

*127

102

84

72

71

73

62

54

50

47 

183

3,849

124

4.96

5.73

Nov.

145

116

105 

137

109

96

89

88

80

75

77

75

69

84

*83

116

132

113

103

90

82

72

66

64

57

53

49

*46

40 

38

2,549

85.0

3.40

3.79

Dec.

36

34

35 

4342"

38

34

35

34

32

31

3O

29

27

28

24

27

25

22

14

13

14

19

23

4O

25

15

12

13 

14

13

821

26.5

1.06

1.22

Jan.

13

12

15 

14

13

11

9.6

14 8.0

62

64

*60

54

49

47

42

37

31

31

35

30

28

26

24

23

22

21

19

20

*27

889.6

28.7

1.15

1.32

Feb.

22

18

19 

15

IT

19

20

20

21

26

25

37

31

26

34

33

28

5O

43

39

33

25

*27

26

125

116

82

72

60

1,113

38.4

1.54

1.66

Mar.

54

62

66 

62

54

58

230

331

248

176

161

*148

118

105

89

74

68

60

58

52

48

47

45

43

37

39

39

35

35 

35

55

2,710

87.4

5.5O

4.05

Apr.

M

46

111 

418

495

387

382

267

191

161

*153

148

150

154

159

585

555

*296

*211

161

153

156

148

135

119

119

110

281

576 

532

7,331

244

9.76

10.91

May

288

225

215 

198

164

143

128

106

90

88

81

77

72

77

78

76

7O

72

66

62

56

52

50

45

41

38

41

38

34

31

34

2,836

91.5

3.66

4.22

June

65

65

112. 

*104

93

80

67

59

53

50

46

40

57

51

28

58

57

55

31

27

26

24

22

22

18

17

19

17

15

13

1,309

43.6

1.74

1.95

July

11

10

9.7 

*9.3

57

32

22

17

15

15

12

11

11

16

13

11

11

9.3

8.5

9.0

11

11

11

9.9

8.8

8.4

7.4

6.8

6.6

H

381.3

12.3

0.492

0.57

Aug.

6.1

5.8

5.5 

5.5

5.1

5.1

5.2

*5.0

4.8

4.6

4.6

4.7

5.4

6.1

5.8

5.4

5.0

4.8

5.1

4.7

4.6

4.4

4.5

4.2

4.1

4.O

3.8

575

*4.2

4.4

6.5

152.6

4.92

0.197

0.23

Sept.

6.2

7.4

6.4 

5.6

5.2

5.7

8.1

6.8

5.8

5.4

5.0

4.8

4.7

±.3

57F

16

21

*19

13

30

24

19

17

36

27

25

20

19

17 

17

404.6

13.5

0.540

0.60

Calendar year 1955: Max 768 Mln 2.5 Mean 57.3 Cfsm 2.29 In. 31.12

Water year 1955-56: Max 759 Mln 3.8 Mean 66.5 Cfsm 2.66 In. 36.23

Peak discharge (base. 740 efs). Oct. 15 (9:15 p.m.) 1,390 cfs (6.76 ft); Apr. 16 (10 p.m.) 939cfs 

(6.04 ft).

» Discharge measurement made on this day.

HTote. Stage-discharge relation affected by Ice Nov. 29, 30, Dec. 7, 10-14, 16-24, Dec. 26 to 

Feb. 10, Feb. 14, 16-18, 21-25, 29, Mar. 1, 5, 6, 16-22, 24, 25, 28, 29, Apr. 2.
180 DELAWARE RIVER BASIN 

Tremper Kill near Shavertown, N. Y.

Location. Lat 42°07'15", long 74 8 49'10", on right bank 500 ft upstream from highway 

bridge, 2£ miles northeast of Shavertown, Delaware County, 2£ miles upstream from 

mouth, and 2^ miles northwest of Union Grove.

Drainage area. 33.0 sq ml.

Records available. February 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 1,285.87 ft above mean 

sea level, datum of 1929. Prior to Aug. 5, 1937, staff gage at site 500 ft downstream 

at different datum and from Aug. 5 to Sept. 28, 1937, staff gage at site a quarter of 

a mile downstream at different datum.

Average discharge. 19 years, 61.9 cfs.

Extremes. Maximum discharge during year, 1,210 cfs Apr. 4 (gage height, 4.32 ft); minimum, 2.5 cfs Aug. 27, 28 (gage height, 1.58 ft).

1937-56: Maximum discharge, 4,250 cfs Sept. 21, 1938 (gage height, 7.12 ft), from 

rating curve extended above 1,500 cfs by logarithmic plotting; minimum, 0.7 cfs Sept. 4, 

1953; minimum gage height, 1.53 ft Feb. 5, 1955 (result of siphonic action).

Remarks. Records excellent except those for periods of ice effect, no gage-height record, 

or faulty intake action, which are good.

Rating tables, water year 1955-56, except periods of Ice effect ( 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Jan. 10 Jan. 11 to Sept. 30

1.8 7.

2.0 18

2.2 38

2.5 93

2.8 

3.2 

3.6

183

362

626

1.58

1.7

1.8

1.9

2.0

2.5

5.4

8.4

13

20

2.2 

2.6 

3.0 

3.5

4.0

43

118

247

539

940

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8 

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

40

31

28

26 

24

90

75

105 

84

71

60

53

47

44

213

568 

471

296

210

*149

119

96

78

82

88

66

57

52

48

153 

137

3,666

118

3.58

4.13

Nov.

116

103

92

ToS

93

84

80

71

64

75

71

60

*99

82

143 

128

114

103

89

80

67

66

64

53

50

46

*45

36

34

2,464

82.1

2.49

2.78

Dec.

31

31

34

75 

62

52

46

47 

47

41

38

37

34

29

30

26 

28

27

23

12

9.4

16

22

46

27

15

13

14

15 

14

952.4

30.7

0.930

-1.07

Jan.

14

13

16

15 

14

12

9.8

8.6

65

96

96

90

70

68

60 

52

40

*37

38

34

31

30

27

26

24

24

21

22

28 

28

1,127.4

36.4

1.10

1.27

Feb.

24

19

*20

tt

19

21

21 

23

28

28

45

39

32

40

40 

36

50

SO

46

*41

31

33

33

130

155

Tl2

96

82

1,328

45.8

1.39

1.50

Mar.

74

82

104

100 

86

94

*434

568 

354

239

221

190

149

130

104

86 

80

74

68

62

56

54

52

49

48

49

48

44

44

44

3,830

124

3.76

4.32

Apr.

46

70

164

553 

e840

e680

a600

a400 

a290

*a245

234

231

*219

200

231

522 

502

306

*227

169

141

174

176

160

136

140

126

148

284

294

8,508

284

8.61

9.59

May

190

149

133

114 

98

88

76

65 

56

60

50

49

46

59

*67

62 

58

65

58

52

48

44

43

39

35

30

39

38

30

ff

1,995

64.4

1.95

2.25

June

46

44

84

67 

63

56

50

*43 

38

36

36

27

26

21

18

16 

15

14

12

11

11

10

9.3

11

8.9

8.0

8.9

8.5

7.3

6.7

812.6

27.1

0.821

0.92

July

6.1

5.8

*5.4

*5.1 

35

24

12

9.1 

8.4

9.1

7.2

6.6

7.4

14

8.9

7.0 

6.2

5.6

5.0.

5.6

10

8.5

28

15

11

9.5

9.3

7.8

6.4

6.0 

5.6

310.6

10.0

0.303

0.35

Aug.

5.4

5.1

5.8

5.5 

4.0

6.3

*6.0

4.2 

3.5

3.2

2.8

2.7

4.2

12

5.8

4.4 

3.9

3.5

5.8

4.5

4.0

3.9

3.3

3.5

3.6

3.0

2.6

371

*5.7

4.6

ii

153.9

4.96

0.150

0.17

Sept.

9.1

6.0

5.0

4.2 

3.9

3.6

4.1

3.6 

3.4

3.2

3.1

3.1

3.0

375

4.0

25 

23

20

*11

37

20

15

38

212

82

58

44

42

31

29

749.3

25.0

0.758

0.84

Calendar year 1955: Max 838 Min 2.4 Mean 65.1 Cfsm 1.97 In. 26.78

Water year 1955-56: Max 840 Mln 2.6 Mean 70.8 Cfsm 2.15 In. 29.19

Peak discharge (base. 700 efa). Oct. 15 (10:30 p.m.) 844 cfs (3.88 ft)j Mar. 8 (2:30 p.m.) 923 cfs 

(3.98 ft); AprT 4 (6j45 p.m.) 1,210 cfs (4.32 ft); Apr. 16 (8:45 p.m.) 743 efs (3.76 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on recorded range In stage and records for other stations In the basin of East Branch Delaware River.

e Faulty Intake action; discharge computed from reconstructed gage-height graph based on appearance of recorder ehart and records for other stations In the basin of East Branch Delaware River.

Note. Stage-discharge relation affected by Ice Nov. 28 to Dec. 2, Dee. 6-11, Dec. 13 to Jan. 9, 

Jan. 14, 15, Jan. 17 to Feb. 10, Feb. 14-18, Feb. 20 to Mar. 2, Mar. 14-29, Apr. 2 (doubtful gageheight record Dec. 22-29).
DELAWARE RIVER BASIN 181

Terry Clove Kill near Pepacton, N. Y.

Location. Lat 42°07'50", long 74°54'00", on left bank 600 ft upstream from wooden farm 

bridge, l£ miles upstream from confluence with Fall Clove Kill, and 3^ miles north of 

Pepacton, Delaware County.

Drainage area. 14.1 sq mi.

Records available. February 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,329.38 ft above 

mean sea level, datum of Board of Water Supply, City of New York. Prior to Oct. 1, 

1940, staff gage at site 600 ft downstream at different datum.

Average discharge. 19 years, 26.7 cfs.

Extremes. Maximum discharge during year, 519 cfs Apr. 4 (gage height, 3.04 ft); minimum, 

0.4 cfs Aug. 28 (gage height, 0.705 ft).

1937-56: Maximum discharge, 4,010 cfs May 23, 1942 (gage height, 5.49 ft), from 

rating curve extended above 800 cfs on basis of slope-area determination of peak flow; 

minimum daily, 0.1 cfs Aug. 29 to Sept. 4, 1953; minimum gage height, 0.57 ft Feb. 5, 

1955 (result of siphonic action).

Remarks. Records excellent except those for periods of ice effect or those below 2 cfs, 

~ which are good.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 16 to Sept. 3O

1.1

1.2

1.3

5.4 

8.4

13

1.5 28

1.8 71

2.0 114

1.0

1.1

0.7 

.9 

2.2 

3.8 

6.4

1.3 

1.5 

1.8 

2.2 

3.O

14

29

71

169

497

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

16

12

10

8.8

B.O

58

*39

53

36

30

25

21

18

18

110

192

15T

107

79

*56

46

36

29

33

33

26

22

19

18

107

85

1,503.8

48.5

3.44

3.97

Nov.

68

54

50

68

46

38

36

32

27

25

31

28

24

46

36

68

57

51

46

39

34

29

29

27

22

20

19

 19

16

15

1,100

36.7

2.6O

2.9O

Dec.

14

13

15

35

25

21

20

20

2O

17

17

16

15

14

14

13

13

12

11

6.6

5.8

6.6

9.6

11

18

13

10

9.0

9.6

9.7

9 9

443.8

14.3

1.01

1.17

Jan.

9.4

9.0

9.8

9.0

8.6

8.0

6.8

5.2

8.8 *40

41

4O

33

27

26

20

18

16

15

16

12

11

10

9.6

9.2

9.2

9.1

8.2

8.6

12

11

476.5

15.4

1.09

1.26

Feb.

8.6

7.2

7.6

5.8

7.6

9.4

8.4

8.9

11

11

22

17

15

21

19

16

21

19

18

16

14

*15

14

84

84

53

44

36

621.9

21.4

1.52

1.64

Mar.

34

4O

53

48

38

41

225

258

157

114

108

*88

68

59

48

40

33

30

28

25

24

21

20

18

17

18

17

17

17 

17

16

1,737

56.0

3.97

4.58

Apr.

18

37

91

276

341

271

250

169

130

*112

105

100 *96

91

100

205

212

140

*102

77

66

82

87

81

68

68

57

72

130 

131

3,765

126

8.94

9.93

May

87

69

59

5O

4O

36

30

25

21

22

18

19

17

40

37

39

»35

37

32

27

23

2O

19

16

14

13

17

15

12 

11

11

911

29.4

2.09

2.40

June

20

30

63

5O

46

36

*28

23

20

18

16

12

11

9.1

7.8

9.4

9.3

6.8

5.5

4.9

4.8

4.3

4.5

4.4

3.6

3.1

3.7

3.3

2.8

^

462.7

15.4

1.09

1.22

July

2.2

2.1

*1.9

*1.9

19.

9.6

5.5

3.8

3.8

3.8

2.8

2.4

3.1

5.4

3.5

2.7

2.4

1.9

lt 6

*2.2

5.4

6.3

13

5.4

4.2

3.8

3.3

2.6

2.2

1.9

131.5

4.24

0.301

0.35

Aug.

1.7

1.5

1.3

1.1

1.1

1.2

*1.2

1.1

1.0

.9

.9

.9

2.4

5.4

2.0

1.5

1.2

1.1

1.6

1.4

1.2

1.0

.9

1.0

1.1

.9

.8

1.2

*2.4

1.5

49.0

1.58

0.112

0.13

Sept.

3.1

2.2

1.6

1.2

1.1

1.1

1.2

1.0

.8

.8

.7

.7

.7

.8

1.5

12

14

9.9

*5.4

28

11

8.2

15

73

27

19

15

14

12 

13

295.0

9.83

0.697

0.78

Calendar year 1955: Max 583 Mln O.6 Mean 28.4 Cfsm 2.O1 In. 27.31

Water year 1955-56: Max 341 Mln O.7 Mean 31.4 Cfsm 2.23 In. 3O.33

Peak discharge (base. 45O efs). Apr. 4 (6 p.m.) 519 cfs (3.O4 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 29 to Dec. 2, Dec. 6-8, 1O-12, 14-29, 

Jan. 1-11, 13-19, 21-26, Jan. 28 to Feb. 8, Feb. 14, 16, 17, 21-26, Feb. 28 to Mar. 1, Mar. 16-29, 

Apr. 2 (doubtful gage-height record Dec. 19-29).

505690 O - 59 - 13
182 DELAWARE RIVER BASIN 

East Branch Delaware River at Downsville, N. Y.

Location. Lat 42°04'30", long 74°58'35" (corrected), on left bank half a mile downstream 

from Downsville Dam, at downstream end of outlet channel of Pepacton Reservoir, and 

1 mile east of Downsville, Delaware County.

Drainage area. 371 sq mi.

Records available.--July 1941 to September 1956.

Gage. Water-stage recorder and concrete control. Prior to Sept. 26, 1941, wire-weight 

gage and Sept. 26, 1941, to June 28, 1955, water-stage recorder, at site three-quarters 

of a mile downstream at different datum.

Extremes.--Maximum discharge during year, 5,200 cfs Apr. 17 (gage height, 6.73 ft); minimum daily, 1.8 cfs Oct. 28, 29; minimum gage height, 1.455 ft Oct. 29.

1941-56: Maximum discharge, 23,900 cfs Nov. 26, 1950 (gage height, 14.52 ft), from 

rating curve extended above 12,000 cfs by logarithmic plotting (site and datum then in 

use); minimum, 0.3 cfs Oct. 11, 1954; minimum gage height, that of Oct. 29, 1955. 

Maximum stage known, about 16 ft Oct. 9, 1903 (at former datum).

Remarks. Records excellent. Subsequent to September 1954, entire flow from drainage area, 

except during periods of release or spillage, diverted from Pepacton Reservoir (see 

p. 276) through Rondout Reservoir in Hudson River basin into Kensico Reservoir for municipal supply of city of New York.

Rating tables, water year 1955-56 (gage height. In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Nov. 30 Dec. 1 to Sept. 30

1.47 

1.6

1.8

1.9

2.0

2.1 

2.3

1.8

2.3

3.5

4.5

6.0

8.2

16

2.7 

3.0 

3.3

30

53

115

230

429

855

2.4 

2.6 

2.8 

3.1 

3.4

146

288

3.7 515

4.0 845

5.0 2,650

6.6 5,040

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

98

98

98

99

100

102

65

2.4

1.9

54

92

92

92

51

2.6

2.9

2.8

189

334

338

338

341

34T

341

143

2.Z

1.9

i4

1T§ 

2.7

2 " 5

3,431.5

111

-

-

Nov.

2.4

2.6

2.2

2T?

242

575

318

193

555

427

341

426

427

566

 586

626

4Tf

440

487

176

*19

49

108

118

115

108

109

110

110 

*110

7,827.4

261

-

-

Dec.

Ill

110

110

110

110

110

132

106

108

109

109

109

109

98

ITT

119

105

105

122

220

309

331

223

108

108

109

236

331

317 

328

**O JOO

5,061

163

_

-

Jan.

338

338

338

338

338

326

338

338

338

541

339

 341

338

338

338

341

341

319

289

271

338

341

205

122

18T

334

334

334

334 

338

338

9,825

317

-

-

Feb.

334

334

*334

334

334

334

334

334

334

334

334

334

334

334

531

358

554

334

354

558

558

558

555

358

338

358

558

338

358

9,724

555

.

-

Mar.

522

554

534

334

354

334

291

301

501

501

501

501

295

295

507

501

501

501

501

501

301

501

295

501

501

246

81

237

295 

287

295

9,158

295

-

-

Apr.

295

295

295

288

55(5

298

298

501

501

301

301

»295

 288

291

288

 1,240

 4,950

4,410

 3,290

2,590

1,750

1,820

1,890

 1,640

1,530

 1,570

1,350

1,240

2,730

3,970

40, 155

1,538

-

-

May

5.210

2,700

2,210

1,740

1,470

1,290

1,180

915

795

789

789

789

789

708

W

781

 789

789

789

789

789

770

758

 759

745

745

745

745

*739 

751

751

32,357

1,044

-

June

730

745

745

751

751

746

764

738

764

764

770- 770

 754

 489

227

230

230

232

508

455

572

492

487

546

165

214

]94

374

548 

577

15,930

551

-

-

July

687

764

7S4

764

754

399

25

1ST

298

 365

 483

674

759

656

S06

490

602

726

739

739

739

614

490

422

434

439

428

591

714 

 745

745

17,634

^69

-

-

Aug.

745

745

745

745

745

745

 745

745

745

720

745

745

745

745

745

745

745

745

745

745

745

721

696

75?

759

759

739

752

732 

726

*726

22,909

739

-

-

Sept.

726

TTO

720

720

720

464

445

709

709

709

709

709

704

690

704

704

369

22

71

 81

22

22

22

22

 22

22

22

22

22 

68

11,674

389

-

-

Calendar year 1955: Max 626 Mln 1.8 Mean 109 Cfsm - In. -

Water year 1955-56: Max 4,930 Mln 1.8 Mean 507 Cfsm - In. -

 Discharge measurement made on this day.
DELAWARE RIVER BASIN 183

East Branch Delaware River at Harvard, N. Y.

Location. Lat 42"01'15", long 75°07'05", on left bank at downstream side of highway 

bridge at Harvard, Delaware County, 400 ft upstream from Baxter Brook.

Drainage area. 443 sq mi.

Records available. October 1934 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 1,008.06 ft above mean sea level, datum 

of 1929.

Extremes. Maximum discharge during year, 6,330 cfs Apr. 17 (gage height, 10.23 ft); minimum, 70 cfs July 8 (gage height, 2.54 ft).

1934-56: Maximum discharge, 31,400 cfs Sept. 22, 1938 (gage height, 16.93 ft), 

from rating curve extended above 10,000 cfs on basis of slope-area determination at 

gage height 15.58 ft; minimum, 7.2 cfs Oct. 13, 1954 (gage height, 1.63 ft).

Remarks.--Records good except those for periods of ice effect or shifting control, which 

are fair. Subsequent to September 1954, entire flow from 371 sq mi of drainage area, 

except during periods of release or spillage, diverted from Pepacton Reservoir (see 

p. 276) through Rondout Reservoir in Hudson River basin into Kensico Reservoir for 

municiapl supply of city of New York.

Discharge, in cubic feet per aecond, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfam

In.

Oct.

294

258

234 

*213

197

497

620

530 

412

351

366

319

284

264

494

1,500

1, lS6

800

828

679

597

536

496

484

420

168

143

124

115

5T55

703

14,584

470

-

-

Nov.

*492

369

303 

339

351

781

674

236 

698

623

477

551

540

661

*807

945

9T4

746

762

519

233

216

253

267

244

226

218

211

*201

197

14,064

469

-

-

Dec.

189

185

183 

216

228

218

216

226 

*211

200

195

193

189

175

185

165

170

160

185

145

395

431

1075

185

200

185

195

400

400

400

410

7,435

240

-

-

Jan.

41O

390

402 

402

395

384

388

380 

390

439

505

520" 530

500

490

489

477

431

391

386

420

420

*368

185

175

430

400

390

390

406

406

12,689

409

-

-

Feb.

39O

390

390 

555" 370

390

390

388 

*388

406

406

454

450

430

440

450

430

460

469

450

430

420

410

410

558

726

611

580

*540

13,006

448

.

-

Mar.

500

525

590 

620

563

611

1,100

1.400 

1,190

933

822

785

680

634

580

54O

520

480

470

440

430

420

*420

420

400

46O

326" 145

399

392

392

18, 209

587

-

-

Apr.

426" 390

611

1,120

1,900

*1,480

1,450

1,160 

827

720

683

666

678

650

699

*1,770

*5, 920

5,320

3,900

2,820

2,070

2,130

2,330

2,010

1,760

1,790

1,620

1,480

3,120

4,710

56,204

1,873

_

-

May

5.700

*2,976

2,640 

2,070

1,770

1,530

1,450

1,130 

987

975

958

964

958

891

975

964

969

975

964

958

952

940

911

899

*893

888

557

922

905

911

911

38,852

1,253

-

-

June

953

1,010

1.500 

1,27(5

1,190

1,09O

1,040

967 

952

934

911

888

881

725

307

288

278

*272

293

440

584

584

472

554

144

249

216

279

566

584

20, 221

674

_

-

July

68O

798

8O4 

804

880

708

97

3f4 39O

451

691

804

747

557

526

590

777

793

*804

815

743

S35

497

426

*524

420

587

750

804

804

19,163

618

-

-

Aug.

8O4

79TF

798 

798

793

793

793

793 

788

755

777

771

782

777

*771

771

766

761

761

761

766

741

708

7BTT

750

745

745

761

756

756

771

23,860

770

.

-

Sept.

777

761

750 

745

*740

693

283

730 

73O

730

730

724

724

714

724

789

S3T

123

82

246

112

94

86

167

*123

100

*88

80

76

74

13,432

448

-

-

Calendar year 1955: Max 3,470 Min 36 Mean 269 Cfsm - In. -

Water year 1955-56: Max 5,920 Mln 74 Mean 688 Cfam - In. -

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 10, 11, 14-20, Dec. 24 to Jan. 2, Jan. 8, 9, 

13-15, 24, 26-29, Feb. 1-7, 14-18, 21-24, Feb. 28 to Mar. 1, Mar. 15-27, Apr. 1, 2. Shifting-control 

method used Dec. 20, Apr. 5, 6, Apr. 18 to May 24.
184 DELAWARE RIVER BASIN

Beaver Kill near Turnwood, N. Y.

Location.--Lat 42°02 I 05", long 74°43'55", on left bank 75 ft downstream from highway 

bridge, 300 ft downstream from Big Pond outlet, and 1.3 miles northwest of Turnwood, 

Ulster County.

Drainage area . . 40.8 sq mi.

Records available. November 1948 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,751.90 ft above mean sea level, datum 

"of 1929.

Average discharge. 8 years, 117 cfs.

Extremes. Maximum discharge during year, 2,940 cfs Oct. 15 (gage height, 6.49 ft), from 

rating curve extended above 1,100 cfs as explained below; minimum, 9.2 cfs Aug. 28 

(gage height, 0.71 ft).

1948-56: Maximum discharge, 7,400 cfs Nov. 25, 1950 (gage height, 9.16 ft), from 

rating curve extended above 1,100 cfs on basis of contracted-opening determination of 

peak flow; minimum, 4.4 cfs Aug. 24, 1949; minimum gage height, 0.62 ft Aug. 24, 1954.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair. Occasional regulation by Alder, Beech, and Balsam Lakes.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, In 

feet, and discharge, In cubic feet per second)

Oct. 31 to Feb. 26 Feb. 26 to Sept. 30

1

2

2

3

3

4

.6

.0

.5

.0

.5

.0

5.0 1,

68

118

203

328

508

749

460

1

1

2

2

3

3

.0

.5

.0

.5

.0

.5

20

54

114

196

321

499

0.7

1.0

1.4

2.0

2.5

8.9

21

48

118

199

1955 to

3.

3.

4.

5.

6.

0

5

0

0

0

September

1,

2,

321

499

749

460

380

1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Tbtal

Mean

Cfsm

In.

Oct.

132

99

86

78

*72

192

311

290

207

168

144

127

115

113

915

1.250 

681

401

281

219

186

156

136

132

141

120

*107

99

92

458

422

7,930

256

6.27

7.23

Nov.

268

211

181

242

188

163

a!55

a!5O

a!40

a!3O

137

134

136

180

164

228 

258

*206

183

163

146

131

121

122

111

102

95

90

80

21

4,691

156

3.82

4.28

Dec.

70

68

69

83

 LL

76

62

68

64

58

58

56

54

50

54

44 

44

45

42

27

25

27

36

41

54

41

33

28

30

31

29

1,558

50.3

1.23

1.42

Jan.

30

27

31

31

29

26

25

24

37

69

77

90

98

BS

64

60 

52

42

43

*4E

42

41

40

36

36

35

35

34

34

38

40

1,374

44.3

1.09

1.25

Feb.

34

32

37

26

37

30

35

33

32

34

33

41

*39

29

37

36 

29

39

40

37

33

30

35

33

64

150

155

88

74

1,298

44.8

1.16

1.18

Mar.

68

*75

76

76

68

81

165

253

35T

176

164

167

148

140

128

108 

106

100

94

88

82

*80

79

76

66

68

68

62

62

63

62

3,276

106

2.60

2.99

Apr.

59

61

138

339

691

648

688

487

330

270

*248

255

260

253

319

1,210 

975

519

365

278

241

306

295

234

203

199

200

621

1,650

1,160

13,485

450

11.0

12.29

May

596

460

*484

412

321

273

246

199

174

171

153

144

133

165

192

171 

151

153

145

136

122

114

110

99

91

86

102

*101

87

83

80

5,954

192

4.71

5.43

June

118

120

214

m

151

140

127

112

101

96

*90

78

80

70

62

56 

63

53

47

43

43

42

37

37

34

*32

39

37

30

2_9

2,357

78.6

1.93

2.15

July

27

25

24

23

45

55

3?

31

29

26

24

23

25

41

29

26 

25

22

21

23

27

26

28

25

24

24

*21

20

19

18

TS

833

26.9

0.659

0.76

Aug.

17

17

16

15

15

15

16

15

14

13

13

13

15

20

14

12 

12

12

15

14

*12

11

11

11

10

9.9

9^6

10

13

12

22

424.5

13.7

0.336

0.39

Sept.

21

19

16

*13

12

15

16

13

11

11

10

10

9.9

57?

11

41 

42

46

30

65_

49

38

37

63

51

43

38

38

36

37

851.8

28.4

0.696

0.78

Calendar year 1955: Max 1,250 Mln 12 Mean 115 Cfsm 2.82 In. 38.34

Water year 1955-56 : Max 1,630 Mln 9.6 Mean 120 Cfsm 2.94 In. 40.15

; (base, 1.000 cfs).--Oct. 15 (9:45 p.m.) 2,940 cfs (6.49 ft); Ap 

ft); Apr. 29 (10:15 a.m.) 1,970 cfs (5.58 ft). 

;asurement made on this day.

Peak dlscharg

1,760 cfs (5.36

* Dlscharg

ir. 16 (4:30 p.m. )
DELAWARE RIVER BASIN 185

Beaver Kill at Craigie Clair, N. Y.

Location. Lat 41°57'45", long 74°52'00", on left bank 100 ft downstream from highway 

bridge at Craigie Clair, Sullivan County, 2^ miles upstream from Spring Brook, and 

2? miles northeast of Rockland.

Drainage area. 82 sq mi, approximately. 

Records available. May 1937 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,399.69 ft above mean sea level, adjustment of 1912. Prior to Aug. 14, 1937, chain gage on highway bridge at datum 0.56 ft 

higher.

Average discharge. 19 years, 207 cfs.

Extremes. Maximum discharge during year, 3,680 cfs Oct. 15 (gage height, 7.62 ft); minimum, 13 cfs Aug. 28 (gage height, 2.89 ft).

1937-56: Maximum discharge, 10,300 cfs Sept. 27, 1942, from rating curve extended 

above 4,000 cfs on basis of slope-area determination of peak flow; maximum gage height, 

10.77 ft Nov. 25, 1950; minimum discharge, 8.4 cfs Aug. 28, 1949; minimum gage height, 

2.315 ft Sept. 29, 1943.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 25 Feb. 26 to Sept. 30

3.0 

3.2 

3.5 

4.0

46

77

137

277

4.5 

5.0 

6.0 

7.0

483

774

1,580

2,740

2.9 

3.3 

3.5 

4.0

14

82

130

305

4.5 

5.0 

6.0 

7.0

540

825

1,620

2,750

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

316

239

207

184

 169

402

604

636

469

370

308

267

236

227

1,160

1.890

1,160

*761

557

422

354

298

261

251

261

224

*201

187

177

660

717

14,175

457

5.57

6.43

Nov.

473

a55T

a330

a450

a340

a308

288

284

255

239

248

242

236

304

288

395

454

*383

350

312

277

251

233

233

209

193

184

a!75

a!45

a 140

8,606

287

3.50

3.90

Dec.

a!35

a!30

a!35

a 149

164

144

130

133

128

124

125

122

115

108

112

98

98

100

92

60

54

60

78

90

120

92

72

62

66

68

64

3,228

104

1.27

1.46

Jan.

66

60

*68

66

62

58

56

54

78

155

180

200

210

TJo

130

120

104

94

94 *102

94

92

90

82

80

78

78

76

78

84

90

3,019

97.4

1.19

1.37

Feb.

78

76

*86

66

78

72

78

74

68

74

70

88

84

64

76

74

62

84

86

78

72

64

68

66

140

320

2C5

170

150

2,771

95.6

1.17

1.26

Mar.

135

*148

160

163

148

184

403

585

541

426

393

398

335

318

277

230

210

210

195

175

160

155

148

140

120

122

*120

118

114

114

112

7,057

228

2.78

3.20

Apr.

a!04

a!20

a234

625

1,310

1,280

1,310

949

688

577

*540

556

561

540

634

1,920

1,570

963

729

566

489

610

620

520

460

460

431

822

1,640

1,480

23,308

777

9.48

10.57

May

902

729

*729

642

525

a450

a412

a331

a289

a289

a258

a246

a235

268

353

322

285

297

281

269

246

228

214

193

176

163

193

*196

163

151

145

10,180

328

4.00

4.62

June

222

230

399

|48

305

273

243

214

193

176

*163

142

145

122

109

100

100

89

80

74

74

71

69

67

63

*58

67

65

54

M

4,364

145

1.77

1.98

July

46

44

43

41

72

93

71

60

56

49

45

42

46

61

53

46

43

39

37

38

45

44

51

49

49

48

*41

38

35

33

32

1,490

48.1

0.587

0.68

Aug.

31

29

£6

24

24

24

25

24

22

20

20

21

24

31

*24

21

18

17

20

21

*19

17

15

16

15

14

14

15

21

24

38

674

21.7

0.265

0.31

Sept.

43

42

33

*25

22

25

34

25

22

21

20

52

24

25

25

86

95

100

72

148

112

91

84

131

107

93

84

84

78

78

1,851

61.7

0.752

0.84

Calendar year 1955: Max 2,330 Mln 12 Mean 214 Cfsm 2.61 In. 35.41

Water year 1955-56: Max 1,920 Mln 14 Mean 221 Cfsm 2.70 In. 36.62

Peak discharge (base. 5.000 efa).--0ct. 15 (10 p.m.) 3,680 cfs (7.62 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on records 

for other stations in the Beaver Kill basin.

Note. Stage-discharge relation affected by ice Dec. 7, 10, 11, Dec. 14 to Mar. 1, Mar. 16-22, 24- 

29 (no gage-height record Jan. 2, 3, Mar. 26, 27).
186 DELAWARE RIVER BASIN

Willowemoc Creek near Livingston Manor, N. Y.

Location. Lat 41 0 54'15", long 74°48'50", on right bank three-quarters of a mile upstream 

from highway bridge in Livingston Manor, Sullivan County, and 1^ miles upstream from 

Little Beaver Kill.

Drainage area. 63 sq mi, approximately.

Records available. August 1937 to September 1956.

Sage. Water-stage recorder. Datum of gage is 1,435.85 ft above mean sea level, datum of 

T929.

Average discharge. 19 years, 155 cfs.

Extremes. Maximum discharge during year, 3,850 cfs Oct. 15 (gage height, 5.73 ft), from 

rating curve extended above 1,200 cfs as explained below; minimum, 21 cfs Aug. 11, 12 

(gage height, 0.43 ft).

1937-56: Maximum discharge, 10,500 cfs Mar. 31, 1951 (gage height, 9.01 ft), from 

rating curve extended above 640 cfs on basis of slope-area determination of peak flow; 

minimum, 10 cfs Sept. 22, 1941, Sept. 4, 5, 1953; minimum gage height, 0.045 ft Nov. 1, 

1952.

Remarks. Records good except those for periods of ice effect, which are fair.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

368

227

178

152

*136

462

625

479

351

269

219

192

178

2O7

1,480

«1.940 

1,060

*616

429

332

277

239

207

2O3

227

188

*162

145

132 '3Tc

9JLO

738

13,334

430

6.83

7.87

Nov.

420

318

276

428

3l?

264

231

223

195

180

195

203

215

300

269

397

410

*300

256

231

207

188

176

180

162

155

142

132

116

115

7,204

240

3.81

4.25

Dec.

108

102

105

125

145

122

104

99

96

94

94

86

80

76

78

70 

70

68

66

46

44

48

68

76

90

76

60

50

54

56

52

2,508

80.9

1.28

1.48

Jan.

54

5O

56

54

52

49

46

43

60

99

151

160

162

122

108

86 

75

68

66

70

66

64

*60

56

54

52

50

48

50

62

66

2,259

72.9

1.16

1.33

Feb.

56

54

*58

44

54

52

54

50

46

50

47

56

54

46

50

52 

46

58

60

55

50

43

16

44

90

250 ITSISO

104

1,974

68.1

1.08

1.17

Mar.

90

91

105

110

*98

125

236

383

556

260

231

235

208

197

172

160 

160

155

140

135

130

124

121

118

1O6

112

*109

104

95

95

92

4,846

156

2.48

2.86

Apr.

|i

153

2O8

366

745

858

1,030

704

484

403

*398

434

462

438

530

»1.660 

»1,280

748

550

429

377

561

549

424

377

382

368

623

1,200

1,090

17,870

596

9.46

10.55

May

643

TSS

*496

392

325

285

281

239

208

212

194

190

179

178

239

204 

186

194

197

183

165

152

146

136

*127

121

TSS

197

146

130

124

7,115

230

3.65

4.20

June

182

192

348

255

208

183

159

142

130

121

*115

103

101

89

81

77 

112

77

66

56

56

55

56

66

53

46

»50

49

44

39

3,311

110

1.75

1.95

July

38

37

35

33

93

112 ^76

55

47

40

37

34

35

50

44

38 

35

32

29

29

43

47

44

46

47

52

*39

34

30

27

26,

1,364

44.0

0.698

0.81

Aug.

25

24

23

23

23

23

25

24

23

22

22

21

2T

»29

26

24 

23

24

28

27

24

*23

22

33

60

40

25

23

24

42

58

857

27.6

0.438

0.51

Sept.

58

50

39

*30

27

26

29

26

24

24

24

23

22

2T

23

113 

136

133

75

151

109

81

76

157

112

87

70

65

61

56

1,929

64.3

1.O2

1.14

Calendar year 1955: Max 2,05O Hin 11 Mean 172 Cfsm 2.73 In. 37 .04

Water year 1955-56: Max 1,940 Mln 21 Mean 176 Cfsm 2.79 In. 38.12

Peak discharge (base, 2.30O cfs). --Oct. 15 (11 p.m.) 3,850 cfs (5.73 ft); Apr. 16 (5:45 p.m.)

2,330 cfs (3.94 ft) .

Note. Stage-discharge relation affected by ice Dec. 7, 10, lu11, J.JL,14, i*Dec. vw. 16 j.a to \,u Jan. ucui9, *>,Jan. .,=.. j. 

14, 15, Jan. 18 to Feb. 9, Feb. 13-19, Feb. 21 to Mar. 2, Mar. 4, 5, 16-22, 24-26, 28 (no gageheight record Feb. 15-19).

12,
DELAWARE RIVER BASIN 187

Little Beaver Kill near Livingston Manor, N. Y.

Location. Lat 41°52'20", long 74°47'55", on right bank 100 ft downstream from highway 

bridge, 2| miles southeast of Livingston Manor, Sullivan County, and 3 miles upstream 

from Cattail Brook.

Drainage area. 19.8 sq ml.

Records available. July 1924 to September 1956.

Gage. Water-stage recorder. Concrete control since November 1933. Datum of gage Is

1,496.69 ft above mean sea level, adjustment of 1912. Prior to Dec. 9, 1939, staff gage 

at same site and datum.

Average discharge. 32 years, 46.1 cfs.

Extremes.--Maximum discharge during year, 1,580 cfs Oct. 15 (gage height, 5.21 ft), from 

rating curve extended above 590 cfs on basis of slope-area determination at gage height 

6.36 ft; minimum, 3.2 cfs Aug. 27, 28 (gage height. 1.48 ft).

1924-56: Maximum discharge, 3,420 cfs (revised) Aug. 26, 1928 (gage height, 8.7 ft, 

from floodmarks), from rating curve extended above 1,700 cfs by logarithmic plotting; 

minimum, 1.0 cfs Aug. 1, 3, 5, 1936 (gage height, 1.23 ft).

Revisions. The maximum discharge for the water year 1928 has been revised to 3,420 

cfs Aug. 26, 1928 (gage height, 8.7 ft, from floodmarks), superseding figure published 

In WSP 781 and confirming figure published In WSP 661.

Remarks. Records excellent except those for periods of ice effect, which are fair, 

diversion from Lily Pond for village of Liberty Water supply.

Some

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second) 

(Backwater from unknown cause Oct. 2)

1.48

1.5

1.6

1.7

3.2

3.9

9.5

18

2.0 

2.3 

2.S 

3.6

124 

28S 

668

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16 

17

18

19

20

21

23

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

101

60

44

38

 38

326

246

167

114

90

70

57 

47

106

655

618 

360

*198

130

100

77

64

55

55

66

52

*46

40

36

451

273

4,780

154

7.78

8.98

Nov.

143

100

86

138

94

75

66

64

55

50

57

66 

70

136

97

13!

*92

73

64

55

50

46

50

43

39

36

34

28

27

2,242

74.7

3.77

4.21

Dec.

25

24

25

39

44

32

24

26

 24

21

21

20

19

17

18

16 

16

16

15

11

10

TT

16

18

21

17

13

10

11

12

11

603

19.5

0.985

1.13

Jan.

12

10

12

11

11

10

9.4

8.8

13

26

40

47 

49

35

30

26 

22

18

*17

18

18

17

16

15

15

13

12

12

13

15

16

587.2

18.9

0.955

1.10

Feb.

13

12

 14

11

14

13

15

14

14

15

15

19 

18

13

17

18 

13

20

21

18

14

13

14

13

26

76

55

40

35

590

20.3

1.03

1.11

Mar.

32

34

41

41

*38

54

97

146

TT?

81

75

75 

60

55

49

40 

38

37

36

34

32

*31

30

28

25

28

27

27

27

28

27

1,485

47.9

2.42

2.79

Apr.

30

36

74

155

332

*338

397

224

157

138

*138

153 

154

150

187

497 

 326

198

146

112

100

169

151

124

112

117

124

226

385

376

5,826

194

9.80

10.94

May

181

143

160

110

85

75

81

64

54

55

46

49 

52

47

57

50

41

52

47

41

39

31

28

25

*21

!§T?

55

38

30

28

1,847

59.6

3.01

3.47

June

85

74

~77 130

57

46

38

32

27

27

*27

21 

22

15

13

12 

12

11

11

8.5

9.2

8.8

9.8

12

9.8

8.2

*14

12

8.2

7.2

844.7

28.2

1.42

1.59

July

6.9

6.6

6.1

5.6

33

48

26

24

17

12

9.5

8.2 

9.8

14

13

7.8 

6.6

6.1

5.0

576

24

18

26

18

22

*23

15

12

8.5

7.2

6.9

451.4

14.6

0.737

0.85

Aug.

6.6

6.4

5.6

5.3

5.6

6.4

7.2

5.6

4.8

4.6

4.4

4.1 

6.1

*8.5

5.6

4.6 

4.1

4.9

8.5

5.8

5.3

*4.6

3.9

3.9

3.8

3.4

3.4

3.8

6.1

4.6

19

176.5

5.69

0.287

0.33

Sept.

22

10

6.9

 5.8

5.0

5.6

6.4

5.3

5.0

5.5

5.8

H5.6

6.1

32 

38

40

20

45

28

18

19

85

41

29

20

22

28

22

592.6

19.8

1.00

1.11

Calendar year 1955: Max 893 Mln 2.4 Mean 52.5 Cfsm 2.65 In. 36.03

Water year 1955-56: Max 655 Mln 3.4 Mean 54.7 Cfsm 2.76 In. 37.61

Peak discharge (base. 730 cfs).--Oct. 15 (8:30 p.m.) 1,580 ofs (5.21 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Nov. 29 to Dec. 2, Dec. 6-8, 10-28, Dec. 30 to 

Jan. 19, Jan. 24, 25, Jan. 30 to Feb. 7, Feb. 14-18. Feb. 21 to Mar. 2, Mar. 16-29, Apr. 2 (doubtful gage-height record Jan. 3-19, Feb. 23 to Mar. 2).
188 DELAWARE RIVER BASIN

Beaver Kill at Cooks Palls, N. Y.

Location.--Lat 41°56'50", long 74°58'45", on left bank 125 ft downstream from highway 

bridge in Cooks Falls, Delaware County, and 5-g miles downstream from Willowemoc Creek.

Drainage area.--241 sq mi.

Records available. July 1913 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 1,151.70 ft above mean sea level, datum 

of 1929. Prior to Oct. 1, 1933, staff gage at same site and datum.

Average discharge. 42 years (1914-56), 566 cfs.

Extremes. Maximum discharge during year, 12,300 cfs Oct. 16 {gage height, 10.73 ft); minimum, 52 cfs Aug. 28 (gage height, 0.93 ft).

1913-56: Maximum discharge, 31,600 cfs Mar. 31, 1951 (gage height, 16.02 ft), from 

rating curve extended above 13,000 cfs on basis of slope-area determinations at gage 

heights 11.73 ft and 15.52 ft; minimum, about 23 cfs Sept. 14-16, 1913 (gage height, 

0 .60 ft).

Remarks. Records excellent except those for periods of ice effect or doubtful gage-height 

record, which are good.

Revisions (water years) . WSP 521: Drainage area. WSP 781: 1933(M). WSP 891: 1936- 

39 (M). WSP 1202: 1950. WSP 1232: 1950(M).

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 16

1.7 161

2.0 228

3.0 560

4.0 1,060

Apr. 17 to Sept. 50

5.0 1,840

6.0 2,860

7.0 4,200

9.0 8,040

0.9 

1.4 

2.0

110

258

5.0 578

4.0 1,100

5.0 1,840

Note. Same as preceding 

table above 5.0 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,240 

851

667 

564

*504

1,670

2,290

2,030

1,500

1,140

928

788

681

669

3,580

6,900 

3,736

2,390

1,660

1,230

1,020

867

738

690

793

653

572

516

474

2, 290

2,620

46,245

1,492

6.19

7.14

Nov.

*1,560 

1,160

996 

1,390

1,080

922

824

804

709

649

695

704

719

986

939

1,390 

*1,550

1,160

1,010

889

783

695

631

644

572

532

493

466

410

390

25,752

858

3.56

3.97

Dec.

370 

350

349 

412

495

420

340

350

*346

320

300

300

290

240

303

235

228

228

225

180

170 18"B"

250

280

350

280

220

190

200

210

200

8,814

284

1.18

1.36

Jan.

205 

185

*210 

205

195

185

175

550" 165

410

540

600

620

440

390

340 

290

260

260

280

260

250

245

225

220

210

205

200

210

235

250

8,685

280

1.16

1.34

Feb.

215 

210

230 

180

215

200

215

200

*185

205

195

245

230

180

210

215 

180

240

245

225

200

175

T55

180

380

900

7150"

560

470

__ _ __ .

7,970

275

1.14

1.23

Mar.

410 

430

480 

500

*460

605

1,090

1,750

1,590

1,160

1,040

1,060

900

840

738

620 

600

560

520

490

450

440

*430

430

370

390

380

370

370

365

556

20,194

651

2.70

3.12

Apr.

349

748 

1,550

3,550

3,750

4,160

2,940

2,070

1,700

*1,620

1,710

1,800

1,650

1,960

d5.090 

d4,560

2,810

2,130

1,620

1,370

1,890

1,970

1,580

1,380

1,400

1,320

2,010

3,970

3,870

66,936

2,231

9.26

10.33

May

2.550 

*1,800

1,840 

1,510

1,250

1,080

1,040

880

760

760

688

651

651

595

832

731 

664

706

706

673

599

550

518

480

*438

407

SIS

658

503

444

427

25,704

829

3.44

3.97

June

670 

694

1.500 

1.6SO

848

731

633

554

499

469

441

386

376

328

*291

261 

285

241

211

194

189

189

176

204

167

*151

161

176

143

 129

12,147

405

1.68

1.87

July

120 

113

107 

100

221

350

5ST

201

178

145

129

117

118

155

147

124 

112

101

94

96

125

153

138

149

169

178

*136

115

101

92

87.

4,432

143

0.593

0.68

Aug.

85

81

*76 

72

70

71

78

74

67

64

61

60

68

87

*76

63 

58

56

TO

72

66

60

56

56

84

81

63

57

70

86

*144

2,232

72.0

0.299

0.34

Sept.

187 

178

124 

95

*82

78

98

83

75

67

64

63

67

63

66

271 

397

424

261

491

406

297

261

255" 503

316

264

250

250

222

6,405

214

0.888

0.99

Calendar year 1955: Max 7,960 Mln 38 Mean 623 Cfam 2.59 In. 35.12

Water year 1955-56 : Max 6,900 Mln 56 Mean 643 Cfsm 2.67 In. 36.34

Peak discharge (base, 4,700 cfs). Oct. 16 (1:15 a.m.) 12,300 cfs (10.73 ft); Apr. 5 (7:30 p.m.)

5,060 cfs (7.53 ft); Apr. 16 (about 8:30 p.m.) about 7,000 cfs; Apr. 30 (1:15 a.m.) 4,700 cfs

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from partly reconstructed gage-height graph 

based on weather records and records for other stations in the Beaver Kill basin.

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 2, Dec. 7, 8, 10-14, 16, Dec. 19 

to~Mar. 5, Mar. 16-29.
DELAWARE RIVER BASIN 189

East Branch Delaware River at Fishs Eddy, N. Y.

Location.--Lat 41°58'00", long 75°10'50", on left bank at downstream side of railroad 

bridge at Fishs Eddy, Delaware County, just upstream from Fish Creek, 4| miles downstream from Beaver Kill, and 11 miles upstream from confluence of East and West Branches 

near Hancock.

Drainage area. 783 sq mi.

Records available. November 1912 to September 1956.

gage. Water-stage recorder. Datum of gage is 950.96 ft above mean sea level, datum of 

1929. Prior to Sept. 27, 1928, staff gage at same site and datum.

Extremes. Maximum discharge during year, 17,600 cfs Oct. 16 (gage height', 12.79 ft); minimum daily, 403 cfs Sept. 30; minimum gage height, 2.31 ft Sept. 7.

1912-56: Maximum discharge, 53,300 cfs Aug. 24, 1933 (gage height, 20.60 ft), from 

rating curve extended above 22,000 cfs by logarithmic plotting; minimum, 67 cfs Aug. 28, 

1949; minimum gage height, 1.51 ft Aug. 4,5, 1936.

Flood of Oct. 9, 1903, reached a stage of 23.6 ft, from descriptions obtained in 

April 1939 from local residents who had experienced the flood (discharge, about 70,000 

cfs, from rating curve extended above 22,000 cfs by logarithmic plotting).

Remarks. Records good except those for periods of ice effect or shifting control, which 

are fair. Subsequent to September 1954, entire flow from 371 sq mi of drainage area, 

except during periods of release or spillage, diverted from Pepacton Reservoir (see 

p. 276) through Rondout Reservoir in Hudson River basin into Kensico Reservoir for 

municipal supply of city of New York.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect or shifting 

control (gage height, in feet, and discharge, in cubic feet per second)

Oct. 17 to Sept. 30

4.2 820

5.0 1,300

6.0 2,220

8.0 4,950

10.0 9,100

12.0 14,900

3.4 377

4.0 632

5.0 1,260

6.0 2,220

8.0 4,950

10.0 9,100

12.0 14,900

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13 

14

15

16

17 

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsra

In.

Oct.

1,810 

1,380

1,130

*969

866

2,130 

3,640

3,130

2,490

1,910

1,590

1,350

1,180 

1,090

3,910

11, 600

6, 530 

4,230

3,280

2,600

2,220

1,940

1,710

1,610

1,710

1,260 

1,130

1,030

952

3,310

*4,760

78,447

2,531

-

-

Nov.

3,080 

2,350

1,940

2,310

1,990

2,180 

2,000

1,480

1,730

1,600

1,480

1,530

1,550 

1,870

*2,150

2,560

3,O10 

2,450

2,240

1,920

1,420

1,260

1,190

1,200

1,110

1,030 

971

914

840

792

52,147

1,738

-

-

Dec.

746 

707

696

769

920

834 

700

769

*724

690

620

620

600 

520

580

500

500 

490

52O

450

660

740

760

580

660

560 

500

660

720

720

720

20,215

652

-

-

Jan.

720 

700

720

720

700

660 

640

640

700

980

1,160

1,230

1.540 

1,160

1,060

1,030

965 

820

760

757

752

754

*718

480

468

690 

696

690

696

729

775

24,890

803

-

-

Feb.

696 

696

680

6~55" 581

680 

664

*658

653

680

702

792

786 

696

720

775

718 

786

864

822

757

680

700

700

895

1.800 

1,560

1,370

1,220

24,016

828

-

-

Mar.

*1,100 

1,150

1,280

1,440

1,290

1,570 

2,700

5,990

*5,790

2,800

2,440

2,570

2,020 

1,860

1,670

1,450

1,550 

1,550

1,240

1,150

1,080

1,040

*1,050

1,020

920

1,010 

*759 B08~

920

901

889

48,347

1,560

-

-

Apr.

877 

997

1,500

2,850

6,970

*7,220 

7,860

5,860

5,960

5,280

5,140

3,140

5,520 

5,020

5,390

8,280

12.800 

9, 370

6,790

5,100

3,920

4,550

4,850

4,200

5,690

3,720 

5,480

5,780

7,450

9,400

148,524

4,951

-

-

May

*6,590 

5,120

4,700

5,780

5,240

2,780 

2,660

2,250

1,920

1,890

,800

,750

,780 

,640

,960

,860

,800 

,850

,850

,800

,680

,620

,520

* ,460

,580

.540 

1,46(5

,710

,510

,450

,400

69,490

2,242

-

-

June

1,710 

1,840

5,070

2,940

2,480

2,160 

1,950

1,710

1,590

1,520

1,460

1,550

1,340 

1,240

804

718

702 

658

596

669

810

*883

682

908

455

472 

428

524

798

775

57,220

1,241

-

-

July

816 

984

958

939

1,110

1,550 

658

515

5?4

581

652

870

952 

991

765

702

685 

955

955

933

991

984

734

707

612

*769 

627

734

933

939

926

25,765

851

-

-

Aug.

920 

914

908

895

895

895 

895

895

885

866

864

864

877 

895

870

864

*852 

840

840

840

840

827

808 8"2"B~

828

834 

828

854

852

864

959

26,874

867

-

"

Sept.

1,020 

1,000

926

877

*846

822 

535

854

834

828

822

816

816 

816

822

939

1.170 

690

480

794

724

533

468

709

*676

528 

*465

428

417

405

22,056

755

-

-

Calendar year 1955: Max 16,800 Min 180 Mean 1,145 Cfsra - In. -

Water year 1955-56: Max 12,800 Min 403 Mean 1,579 Cfsm - In. -

* Discharge measurement made on this day.

note. Stage-discharge relation affected by Ice Dec. 7, Dec. 11 to Jan. 11, Jan. 15, 18, 19, 

Feb. 15, 22-24, 29, Mar. 1, 16-18, 25. Shifting-control method used Jan. 26 to Feb. 12, June 26 to 

Sept. 50.
190 DELAWARE RIVER BASIN

West Branch Delaware River at Delhi, N. Y.

Location.--Lat 42°16'15", long 74°55'10", on left bank 300 ft downstream from Steele 

Brook, a quarter of a mile downstream from lower highway bridge in Delhi, Delaware 

County, and 1 mile upstream from Little Delaware River.

Drainage area. 142 sq mi.

Records available. February 1937 to September 1956.

e.--Water-stage recorder. Datum of gage is 1,345.29 ft above mean sea level, datum of 

-929.

Average discharge. 19 years, 246 cfs.

Extremes. Maximum discharge during year, 4,800 cfs Apr. 5 (gage height, 7.26 ft); minimum, 15 cfs Aug. 28 (gage height, 1.955 ft).

1937-56: Maximum discharge. 8,940 cfs Sept. 21, 1938 (gage height, 8.81 ft), from 

rating curve extended above 3,000 cfs on basis of velocity-area studies; minimum, 

4.1 cfs Aug. 28, 1949; minimum gage height, 1.68 ft Aug. 7, 1937.

Remarks. Records good except those for periods of ice effect, no gage-height record, or 

partly obstructed intake, which are fair.

Rating tables, water year 1955-56, except periods of lee effect (gage 

hetght, In feet, and discharge, In cubic feet per second)

Oct. 1 to Jan. 10 Jan. 11 to Sept. 30

2.1 

2.3 

2.5 

3.0 

3.5

102

262

494

4.0 790

5.0 1,620

6.0 2,740

7.0 4,300

1.9

2.0 

2.2 

2.5 

3.0

10

19

48

117

305

4.0 810

5.0 1,620

6.0 2,740

7.0 4,300

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

61

51

45

42

40

135

182

1S2 

142

115

102

95

88

86

546

5.160

2,420

1,330

*1,000

699

553

453

375

381

493

347

299

258

243

712

603

15,238

492

3.46

3.99

Nov.

468

414

375

581

443

380

356

343 

*299

274

312

316

254

449

361

505

515

409

389

361

329

295

287

321

243

228

214

206

160

155

10,242

341

2.40

2.68

Dec.

*160

151

157

420

348

251

210

220 

220

195

185

179

170

150

155

130

140

130

114

70

64

7T

92

116

300

200

130

112

112

1ZO

5,193

168

1.18

1.36

Jan.

118

92

116

125

118

110

98

78 

86

250

580

520

460

330

310

280

250

195

180

*185

160

155

140

120

114

112

110

112

118

130

145

5,897

190

1.34

1.54

Feb.

*120

94

114

76

llo

96

102

106 

109

120

123

144

a!64

a!40

a!70

a!90

al60

a200

a220

*a!80

150

130

130

140

490

1.080

635

520

430

6,443

222

1.56

1.69

Mar.

390

410

570

570

440

413

2,480

2.810 

*2,000

1,250

1,110

1,220

866

750

635

500

390

470

400

360

350

300

296

282

245

248

235

210

190

200

196

20,786

671

4.73

5.44

Apr.

253" 189

540

2,080

5.780

2,850

2,370

1,530 

*1,260

1,090

1,060

1,080

1,050

915

1,040

1,780

1,940

1,330

1,030

804

684

786

*708

726

625

595

560

580

859

1,100

35,164

1,172

8.25

9.21

May

"657 824

560

490

480

410

380

320 

270

280

250

225

230

200

190

*180

175

155

150

140

124

118

133

132

109

99

109

123

104

102" 89

7,771

251

1.77

2.04

June

346

281

488

34T

287

240

200

*171 

150

141

154

114

112

96

94

79

75

66

60

52

50

54

52

68

52

45

43

44

40

56

4,031

134

0.944

1.06

July

33

*30

28

28

85

120

66

48 

~84 169

60

58

50

83

75

56

48

*41

37

38

72

81

128

129

82

70

60

54

46

43

40

2,042

65.9

0.464

0.53

Aug.

37

35

31

29

28

26

26

*24 

23

21

19

19

22

32

27

22

20

19

20

22

20

19

17

18

18

17

16

Tf

28

*49

60

781

25.2

0.177

0.20

Sept.

56

43

37

29

25

24

27

23 

20

18

17

17

17

17

27

206

217

210

*109

381

211

154

426

1.840

708

505

400

332

282

240

6,618

221

1.56

1.73

Calendar year 1955: Max 3,600 Mln 11 Mean 273 Cfsra 1.92 In. 26.07

Water year 1955-56; Max 3,780 Mln 16 Mean 328 Cfsm 2.31 In. 31.47

Peak discharge (base. 1.900 cfs). Oct. 16 (l p.m.) 3,820 cfs (6.73 ft); Mar. 7 (3 p.m.) 3,500 cfs 

(6.53 ft); Apr. 5 ( 3 a.m.) 4,800 cfs (7.26 ft); Apr. 17 (12:30 a.m.) 2,370 cfs (5.70 ft); Sept. 23 

(11:45 p.m.) 2,680 cfs (5.95 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage, weather records, 

and records for Little Delaware River near Delhi and West Branch Delaware River at Walton.

Note. Stage-discharge relation affected by Ice Nov. 29, 30, Dec. 7, 8, 10, 11, Dec. 14 to Feb. 8, 

Feb. 21-25, Feb. 29 to Mar. 2, Mar. 16-22, 25, 28, 29. Partly obstructed Intake May 2-22; discharge computed on basis of discharge measurements, drop In stage when Intake was flushed, and rec- ords for nearby stations.
DELAWAHE RIVER BASIN 191

Little Delaware River near Delhi, N. Y.

Location. Lat 42°15'10", long 74°54'10", on left bank 15 ft downstream from highway 

bridge, a quarter of a mile downstream from Toll Gate Brook, li miles upstream from 

mouth, and 2 miles south of Delhi, Delaware County.

Drainage area. 49.8 sq mi.

Records available. October 1937 to September 1956.

. Water-stage recorder. Concrete control since October 1939. Altitude of gage is 

,390 ft (from topographic map). Prior to Dec. 7, 1939, staff, wire-weight, or hook

gage at several temporary sites within a quarter of a mile of present site at various

daturns.

Average discharge. 19 years, 94.8 cfs.

Extremes. Maximum discharge during year, 2,550 cfs Apr. 4 (gage height, 6.50 ft), from 

rating curve extended above 960 cfs as explained below; minimum, 4.2 cfs Aug. 28 (gage 

height, 1.67 ft).

1937-56: Maximum discharge, 4,530 cfs Aug. 13, 1953 (gage height, 7.78 ft), from 

rating curve extended above 960 cfs on basis of slope-area determination of peak flow; 

maximum gage height, 8.5 ft (present site and datum) Sept. 21, 1938 (from floodmarks); 

minimum discharge, 1.0 cfs Aug. 27, 1949.

Remarks. Records good except those for periods of ice effect, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, 

in feet, and discharge, In cubic feet per second)

Oct. 16 to Apr. 4 Apr. 5 to Sept. 30

1.9

2.0 

2.2 

2.5 

3.0 

3,5

19

29

61

131

280

476

2.5 

3.0 

4.0 

5.0

131

290

716

1,310

Note. Same as 

preceding table 

below 2.5 ft.

1.68

1.7

1.8 

2.0 

2.2

4.6 

5.4

2.5 

3.0 

4.0 

5.0

6.0

123

289

716

1,310

2,070

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16 

17

18

19

20

21

22

25

24

25

26

27

28

29

50

51

Total

Mean

Cfsm

In.

Oct.

43 

52

50

27

26.

97

82

117

94

85

78

70

61

61

462

1.160 

820

490

*556

262

211

171

142

158

169

151

111

99

94

520

245

6,504

205

4.08

4.71

Nov.

215 

189

173

T55~ 249

162

151

145

»128

116

131

121

104

161

151

215 

185

168

162

145

131

116

115

114

94

90

85

83

62

4,179

139

2.79

3.12

Dec.

*58 

58

62

157

TIT

94

80

88

87

78

70

68

64

56

59

45 

45

47

41

25

25

27

31

41

108

68

47

38

36

38

41

1,869

60.5

1.21

1.40

Jan.

59 

51

58

41

58

36

31

26

29

124

*195

T35

162

125

108

98 

90

74

68

66

56

52

49

42

41

39

38

59

41

45

58

2,109

68.0

1.37

1.57

Feb.

*41 

29

42

21

35

29

52

56

39

47

47

56

58

47

64

66

56

72

72

70

*64

50

52

56

240

280

211

186

150

2,250

77.6

1.56

1.68

Mar.

130 

148

174

171

142

142

*801

~62T 1.050

427

455

365

294

258

*218

170 

150

140

125

106

96

92

90

82

74

78

78

74

72

70

68

6,921

223

4.48

5.17

Apr.

70 

9T

242

1,080

1.440

1,070

935

589

488

*387

373

380

341

334

415

925 

827

514

384

296

250

285

*278

260

218

218

198

255

479

536

14,157

472

9.48

10.57

Calendar year 1955: Max 1,260 Mln 2.4 Mean 103

May

fft

252

204

174

149

152

110

92

100

85

81

95

85

81

*76 

74

79

72

64

58

52

59

51

45

58

52

49

41

36

45

5,110

100

2.01

2.52

June

105 

92

155

115

107

95

81

*68

60

60

64

44

49

36

34

28 

26

25

20

18

17

20

19

25

17

15

16

16

*15

12.

1,446

48.2

0.968

1.08

July

11 

11

10

 f~9,4

40

25

17

27

18

14

12

14

25

16

15 

12

*11

9.7

11

19

21

75

15

29

24

20

18

15

14

15

650.1

21.0

0.422

0.49

Aug.

12 

12

10

9.4

8.8

8.5

9.1

*8.3

7.8

7.0

6.6

6.3

7.6

15

8.8

6.8 

6.5

5.6

7.6

7.6

6.6

6.0

5.4

5.4

5.4

4.8

iii

5.1

8.8

*12

17

252.0

8.15

0.165

0.19

Sept.

16 

10

7.8

6.8

5.8

6.0

7.8

7.0

6.0

5.6

5*0

5.2

5.0

5.0

7.1

55 

82

49

 27

145

64

48

159

462

194

140

107

88

72

1,858.1

61.9

1.24

1.59

Cfsm 2.07 In. 28.10

Water year 1955-56: Max 1,440 Mln 4.6 Mean 123 Cfsm 2.47 In. 33.69

Peak discharge (base. 1,500 efs). Oct. 15 (10 p.m.) 1,710 cfs (5.57 ft); Mar. 8 (3 p.m.) 

fs (5.25 ft); Apr. 4 (B p.m.) 2,550 eta (6.50 ft); Apr. 16 (2:30 p.m.) 1,540 cfs (5.05 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 5, Dec. 7, 8, 11-14, 16-25, 

!c7T7 to J.an. 12, Jan. 14-17, Jan. 19 to Feb. 9, Feb. 11, 12, 14-19, 22-26, 29, Mar. 1, 16-5O, 

>r. 7.

1,480

De 

Apr. 2.
192 DELAWARE RIVER BASIN 

West Branch Delaware River at Walton, N. Y.

Location. Lat 42"10'00", long V5°08'25", on left bank in west end of fairgrounds at 

Walton, Delaware County, 100 ft downstream from West Brook.

Drainage area. 331 sq mi.

Records available. October 1950 to September 1956.

~~I929. Gage. Water-stage recorder. Datum of gage is 1,190.30 ft above mean sea level, datum of 

Average discharge. 6 years, 641 cfs .

Extremes. Maximum discharge during year, 11,200 cfs Apr. 5 (gage height, 12.07 ft); minimum, 39 cfs Aug. 27 (gage height, 2.41 ft).

1950-56: Maximum discharge, 15,100 cfs Aug. 19, 1955 (gage height, 12.87 ft); minimum, 26 cfs Aug. 10, 1955; minimum gage height, 2.215 ft Sept. 5, 1953.

Remarks. Records excellent except those for periods of ice effect, which are good.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, 

In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Mar. 7)

Oct. 17 to Mar. 7 Mar. 8 to Sept. 3O

3.0 112

3.5 222

4.0 378

4.5 584

5.0 851

6.0 1,520

8.0 3,510

10.0 6,410

3.1 130

3.5 222

4.0 377

5.0 818

6.0 1,460

8.0 3,480

10.0 6,410

2.4 

2.6 

3.0 

3.5 

4.0

58

112

230

402

5.0

6.0

8.0

10.0

12.0

865

1,560

3,890

6,970

11,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

194

165

142

132

125

333

521

544

483

408

364

326

298

294

921

5,560

4,910

2,890

2,110

1,480

* 1,2 10

1,010

846

824

1,O9O

807

719

627

586

1,630

1,700

35,047

1,066

3,22

3.71

Nov.

1,330

1,150

1,030

1.540

1,110

954

879

840

*740

685

724

750

637

886

840

1,140

1,210

1,040

984

902

807

729

680

745

604

556

526

505

445

406

25,172

839

2.53

2.83

Dec.

*399

374

384

701

786

591

480

520

520

470

430

420

406

357

581

500

310

520

300

160

145

170

215

260

500

500

320

260

260

270

270

11,779

580

1.15

1.52

Jan.

26O

220

270

£90

279

262

235

180

2OO

500

*1,570

1,170

1,O6O

740

709

670

582

440

370

390

560

540

510

280

270

260

260

260

250

504

326

15,417

455

1.51

1.51

Feb.

*260

220

270

170

260

220

230

240

250

285

291

424

402

333

391

462

577

481

530

*462

400

310

310

340

967

2,250

1,420

1,160

942

14,657

505

1.53

1.65

Mar.

807

887

1,180

1,230

960

972

4,670

*6.7BO

*5,020

5,100

2,540

2,760

1,960

1,700

*1,420

1,130

947

1,000

880

780

720

680

670

636

540

580

544

501

495

480

464

47,051

1,517

4.58

5.28

Apr.

456

568

1,360

*4,710

»9.570

6,920

5,870

4,030

3,050

2,590

2,420

2,390

2,580

2,040

2,520

4,150

4,670

3,120

2,370

1,820

1,480

1,740

1,640

1,650

1,590

1,350

1,220

1,280

2,020

2,420

82,954

2,764

8.55

9.52

May

1.740

1,520

1,180

1,000

944

810

760

646

562

566

555

497

509

499

551

*488

488

460

448

406

369

545

556

561

298

264

291

536

278

242

246

17,753

573

1.75

1.99

June

838

755

1.550

1,040

S87

750

626

531

460

425

432

547

*322

274

246

216

198

178

157

142

155

135

155

154

137

118

*112

116

104

95

11,407

380

1.15

1.28

July

89

83

78

74

186

337

185

155

227

225

159

120

118

139

161

125

106

*95

85

83

128

175

517

284

224

175

150

151

114

102

96

4,682

151

0.456

0.53

Aug.

90

85

78

75

69

67

66

*63

60

56

54

52

54

95

79

64

56

52

54

54

54

50

47

47

46

45

42

47

56

65

117

1,955

62.4

0.189

0.22

Sept.

129

99

85

70

60

56

61

59

52

48

47

45

44" 44

54

255

520

551

298

*852

562

421

655

4.010

1,700

1,140

865

715

603

540

14,596

487

1.47

1.64

Calendar year 1955 : Max 8,650 Min 29 Mean 640 Cfsm 1.93 In. 26.24

Water year 1955-56 : Max 9,570 Min 42 Mean 761 Cfsm 2.30 In. 31.28

Peak discharge (base, 4,600 cfs). Oct. 16 (4 p.m.) 6,480 cfs (10.04 ft); Mar. 8 (8:45 p.m.)

7,690 cfs (10. JO ft); Apr. 5 (3:30 a.m.) 11,200 cfs (12.07 ft); Apr. 17 (1:15 a.m.) 5,670 cfs

3.22 ft); Sept. 24 (7:15 a.m.) 5,160 cfs (8.89 ft). 

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 7-12, Dec. 16 to Jan. 4, Jan. 7-10, 18-28, 

Feb. 1, 2, 4-8, 21-24, Mar. 18-22, 25.
DELAWARE RIVER BASIN 193

Dryden Creek near Granton, N. Y.

Location. Lat 42°07 I 20", long 75°14i45", on right bank 2,000 ft upstream from small tributary, 1.1 miles northeast of Granton, Delaware County, 1.2 miles upstream from mouth, 

and 3.2 miles northwest of Rock Rift.

Drainage area. 8.85 sq mi.

Records available. July 1952 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 1,180 ft (from topographic map).

Extremes. Maximum discharge during year, 454 cfs Apr. 4 (gage height, 4.19 ft); minimum, 

0.8 cfs Aug. 27; minimum gage height, 1.465 ft Jan. 8, Aug. 27.

1952-56: Maximum discharge, that of Apr. 4, 1956; minimum, 0.3 cfs Aug. 23, 24, 28, 

1954; minimum gage height, 1.235 ft Aug. 29, 30, 1952.

Remarks.--Records good except those for periods of ice effect, which are fair.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.6

5.1

 4.6

4.4

4.2

23

15

22

15

13

12

11

9.7

14

107

162 ~9T

57

40

31

27

23

19

21

21

17

15

*14

14

52

52

924.6

29.8

3.37

3.89

Nov.

38

32

32

42

3T

29

26

23

21

20

21

19

17

24

21

*36

31

29

26

24

21

18

18

16

14

13

12

12

10

Iff

686

22.9

2.59

2.88

Dec.

B.8

8.6

9.4

19

T5

13 11

11

12

11

10

9.8

8.8

7.4

7.8

6.8

6.8

6.4

5.6

4.0

379~ 3.5

4.6

5.8

9.8

7.8

6.2

6.0

 6.0

6.4

6.0

258.2

8.33

0.941

1.09

Jan.

5.4

4.4

5.6

5.8

5.4

5.2

4.1

3.6

4.6

11

25

24

19

15

15

13

11

 9.2

8.4

8.6

7.4

7.2

6.6

6.0

5.8

5.2

4.8

4.4

4.7

6.4

5.8

267.6

8.63

0.975

1.12

Feb.

4.2

3.7

4.4

3.1

472

3.9

 5.4

5.4

5.9

8.2

8.0

17

12

9.8

14

13

11

19

17

15

12

11

10

9.4

43

44

»3T

26

20

390.6

13.5

1.53

1.64

Mar.

18

24

29

30

24

35

139

-§4 167

62

58

49

40

36

32

25

23

21

19

18

17

16

16

15

14

13

12

 11

1?

12

11

1,092

35.2

3.98

4.59

Apr.

12

17

36

 187

205

 148

152

110

78

 67

65

62

59

54

61

117

104

74

56

44

39

49

52

44

38

40

34

38

46

 42

2,130

71.0

8.02

8.95

May

29~ 32

26

25

22

20

18

15

13

15

12

13

12

13

12

14

12

13

12

12

11

10

 9.9

9.2

8.2

13~~ 7.9

11

8.9

8.4

9.1

446.6

14.4

1.63

1.88

June

42

42

64

4T

38

30

25

20

18

21

17

13

14

11

9.2

8.2

7.4

6.5

5.9

*5.3

5.6

 5.0

6.4

6.0

4.7

4.2

4.3

3.9

3.7

3 2 

491.5

16.4

1.85

2.07

July

3.0

2.9

2.7

2.7

13

6.9

4.4

3.6

3.4

2.8

2.7

3.1

3.2

3.9

2.8

2.5

2.2

1.9

1.7

S75

5.O

3.3

3.6

 3.0

4.6

4.1

3.0

2.4

2.1

2.0

1.9

106.9

3.45

0.390

0.45

Aug.

1.8

1.6

1.5

1.4

1.4

1.5

1.4

1.2

1.2

1.1

1.1

1.1

2.1

2.5

1.4

1.2

 1.2

1.1

1.5

1.2

1.2

1.1

1.0

T73

1.1

1.0

1.0

2.2

2.5

1.4

11

53.3

1.72

0.194

0.22

Sept.

7.8

5.1

3.8

2.7

2.1

 2.2

2.3

.9

.6

.6

.5

.5

.4

1.4

2.4

17

21

14

8.6

43

16

12

24

~S5 58

 20

16

13

11

11

348.9

11.6

1.31

1.47

Calendar year 1955: Max 162 Mln 0.6 Mean 16.9 Cfsm 1.91 In. 25.88

Water year 1955-56: Max 205 Mln 1.0 Mean 19.7 Cfsm 3.23 In. 30.25

Peak discharge (base. 250 cfs).--Oct. 15 (5:45 p.m.) 321 cfs (3.68 ft)j Mar. 8 (2 p.m.) 250 cfs 

(3.47 ft); Apr. 4 (6:30 p.m.) 454 cfs (4.19 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 29, Dec. 1, Dec. 6 to Jan. 10, Jan. 14, 

Jan. 17 to Feb. 7, Feb. 14, 16, 17, 21-25, Feb. 28 to Mar. 1, Mar. 16-22, 25, 27, 28.
194 DELAWARE RIVER BASIN

Trout Creek near Rock Royal, N. Y.

Location. Lat 42 0 10'40", long 75°16'45", on right bank at upstream side of farm bridge, 

400 ft downstream from Bullock Brook and 1.4 miles north of Rock Royal, Delaware County.

Drainage area. 20.4 sq ml.

Records available.--June 1952 to September 1956.

Gage. Water-stage recorder. Altitude of gage Is 1,170 ft (from topographic map).

Extremes. Maximum discharge during year, 1,470 cfs Sept. 23 (gage height, 5.66 ft); maximum gage height, 5.85 ft Apr. 4 (backwater from ice); minimum discharge, 1.3 cfs 

Sept. 14; minimum gage height, 2.23 ft Aug. 28.

1952-56: Maximum discharge, that of Sept. 23, 1956; maximum gage height, that of 

Apr. 4, 1956; minimum discharge, 0.2 cfs Aug. 31, 1953 (gage height, 2.00 ft).

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

1232 

1272 

1332 

1382

Water 

year

1952 

1953 

1954 

1955

Date

July 10, 1952 

Dec. 11, 1952 

June 10, 1954 

Aug. 18, 1955

Discharge 

(cfs)

551 

919 

964 

758

Gage height 

(feet)

4.63 

5.11 

5.16 

4.91

Remarks. Records good except those for periods of ice effect, which are fair.

Revisions. Revised figures of discharge, in cubic feet per second, for high-water periods 

in the water years 1952-55, superseding those published in WSP 1232, 1272, 1332, and 

1382, are given herewith:

Date

1952

July 1O

Dec. 11

12

1953

Jan. 24

25

Discharge

165

382

167

351

220

Date

1953-Con.

Feb. 21

Mar. 26

Dec. 6

7

1954

Feb. 17

Discharge

250

173

72

242

413

Date

1954-Con.

Apr. 17

May 10

June 10

13

Nov. 3

21

Dec. 18

30

Discharge

340

144

13O

122

193

144

128

168

Date

1955

Feb. 23

Mar. 1

10

11

22

June 7

Aug. 18

Discharge

196

30O

134

201

157

119

27O

Month

July 1952 ..................

March

Water year 1952-53. ......

Calendar year 1953. ......

Water year 1954-55. ......

Cfs-days

366.4

900 9

Maximum

165

382

351

413

30O

Minimum

1.0

.3

.3

23

.6

.8

Mean

11.8

28.6

3O.5

33.9

93 2

34.2

Per square 

mile

0.578

1.40

1.50

1.66

1.68

Runoff In 

Inches

0.67

19.02

20. 3O

22.57

22.72
DELAWARE RIVER BASIN 195

Trout Creek near Rock Royal, N. Y. Continued

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

9.8

7.5

*6.5

5.8

5.4

47

29

41 

29

25

22

20

18

25

270

340

T§9

124

86

62

52

42

34

46

49

36 

32

*29

27

124 

138

1,981.0

63.9

3.13

3.61

Nov.

93

72

65

~64 100

54

49

43 

38

34

39

36

30

47

38

*86

72

61

56

47

42

36

35

33

28

26 

24

24

20 

20

1,412

47.1

2.31

2.57

Dec.

18

17

19

37

30

24

*21

22 

24

20

20

20

18

15

16

15

15

14

13

8.2

1.0

T3

9.4

12

22

16 

13

11

*12

13 

12

521.4

- 16.8

0.824

0.95

Jan.

11

9.0

12

12

11

11

8.4

M19

57

58

45

30

29

26

22

*17

15

15

13

13

12

11

11

10 

9.0

8.0

8.6

12 

12

538.6

17.4

0.853

0.98

Feb.

8.6

7.6

9.0

~$JS 6.4

8.0

*11

11 

11

13

14

29

22

17

23

21

18

32

28

24

20

17

16

14

124

 *§5 158 

72

50

888.2

30.6

1.50

1.62

Mar.

41

66

92

88

68

99

472

it166

162

137

103

92

72

52

47

42

36

32

28

26

28

24

22

24 

*23

21

20

21 

20

2,947

95.1

4.66

5.37

Apr.

22

38

129

560

 619

*402

344

235 

*185

162

158

154

144

131

149

256

212

147

112

85

71

102

106

90

71

82 

68

77

88 

*76

5,075

169

8.28

9.25

May

52

46

42

37

32

30

26

22 

20

22

18

20

18

19

20

22

20

21

19

18

16

15

*15

14

12

11

Ts

15

12

11 

12

672

21.7

1.06

1.23

June

49

42

82

57

48

38

31

25 

22

28

23

17

19

14

12

14

12

10

8.6

7.8

 7.8

7.3

8.4

8.8

6.8

5.8 

5.6

5.6

5.2 

4.6

625.3

20.8

1.02

1.14

July

4.2

4.2

3.9

3.6

11

13

7.6

5.3

13

6.7

5.7

5.5

6.7

11

7.6

6.2

5.3

4.5

3.9

4.6

19

11

12

 10

9.1

9.1 

7.8

6.7

6.0 

5.3

5.0

254.5

8.21

0.402

0.46

Aug.

4.6

4.3

3.7

3.2

3.2

3.2

3.4

2.8 

2.5

2.3

2.1

2.0

3.2

12

4.3

3.1

*2.6

2.3

4.1

3.2

2.6

2.3

2.0

2.6

2.2

H3.6

6.4

3.7

15

116.3

3.75

0.184

0.21

Sept.

21

8.3

6.1

4.4

3.3

 3.1

3.5

2.4

1.9

1.6

1.6

1.8 i4TTff

4.4

41

83

52

34

134

57

44

209

522

TT5

*74 

54

44

36 

39

1,405.7

46.9

2.30

2.56

Calendar year 1955: Max 340 Mln 0.8 Mean 34.9 Cfsm 1.71 In. 23.18

Water year 1955-56: Max 619 Mln 1.5 Mean 44.9 Cfsm 2.20 In. 29.95

Peak discharge (base. 500 cfs). 0

(5.05 ft); Apr. 4 (7:30 p.m.) 1,420

3t. 15 (6:15 p.m.) 910 cfs (5.10 ft); Mar. 8 (1:15 p.m.) 870 cfs 

3fs (5.62 ft); Sept. 23 (9 p.m.) 1,470 cfs (5.66 ft).

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Nov. 29, Dec. 1, 2, 7, 8, 10, 11, 14-23, 26-29, 

Jan. 1, 2, 7-9, Jan. 18 to Feb. 6, Feb. 14, 16-18, 21-25, 29, Mar. 1, 16-22, 24, 25, 28, 29, 

Apr. 2, 4.
196 DELAWARE RIVER BASIN

Trout Creek at Cannonsville, N. Y.

Location.--Lat 42"05'45", long 75"19"20", on left bank at north end of Cannonsville, 

Delaware County, 0.6 mile upstream from mouth.

Drainage area. 49.5 sq mi.

Records available. September 1940 to September 1956.

Gage. Water-stage recorder, 

of 1929.

Datum of gage is 1,041.54 ft above mean sea level, datum

Average discharge. 16 years, 87.5 cfs.

Extremes.--Maximum discharge during year, 2,960 cfs Apr. 4 (gage height, 8.46 ft), from 

rating curve extended above 1,200 cfs on basis of slope-area determinations at gage 

heights 8.79 ft and 9.95 ft; minimum, 6.0 cfs Sept. 14; minimum gage height, 2.39 ft 

Aug. 28.

1940-56: Maximum discharge, 4,600 cfs Map. 22, 1948 (gage height, 9.95 ft), from 

rating curve extended above 1,200 cfs on basis of slope-area determination of peak 

flow; minimum, 2.2 cfs Aug. 31, 1953; minimum gage height, 2.185 ft Aug. 10, 11, 1955.

Remarks. Records excellent except those for periods of ice effect OP fragmentary or no 

gage-height record, which are good.

Revisions (water years ). VfSP 951: 1941 (M).

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29 

30

31

Itotal

Mean

Cfsm

In.

Oct.

40

31

 27

25

23

f!37

f!21

f!34

105

90

78

70

62

67

463

849

515

331

245

190

156

129

107

116

138

103

88

*78

73

271

384

5,25O

169

3.41

3.94

Nov.

261

208

179

T3B~ 268

164

146

130

116

101

112

107

91

134

116

*223

201

173

158

140

125

108

loo

98

83

75

7O

68

54 

BT

4,049

135

2.73

3.04

Dec.

48

46

50

103

91

74

62

*64

67

6O

58

56

52

44

48

46

44

41

37

26

22

27

32

40

74

47

33

30

*32

34

33

1,521

49.1

O.992

1.14

Jan.

31

25

33

33

31

30

20

16

ST

37

1OS

140

ToT

88

78

74

62

*50

46

44

35

35

32

3O

30

27

24

21

24

31

31

1,391

44.9

0.9O7

1.05

Feb.

24

20

27

18

54

21

*28

28

28

40

42

98

80

66

78

76

60

1O4

98

82

72

64

58

52

220

319

*208

173

130

2,338

80.6

1.63

1.76

Mar.

120

146

194

203

158

211

847

1,060

567

37O

339

307

240

217

188

140

125

118

112

102

90

84

89

82

76

76

75

*66

67

64

62

6,595

213

4.30

4.95

Apr.

f64

a86

a323

al,140

1.380

*916

854

636

*475

418

394

385

373

346

383

607

569

408

322

256

213

291

294

264

222

232

2O8

f217

253

*235

12,764

425

8.59

9.59

May

181

156

148

129

£114

105

101

84

73

78

68

73

67

62

70

73

73

73

68

62

56

f52

 50

47

f41

37

f50

54

41 

f36

f37

2,359

76.1

1.54

1.77

June

a!40

a!41

252

19T

168

138

112

93

78

86

86

6O

64

54

46

41

42

33

28

25

*24

23

23

29

21

18

17

16

15 

14

2,081

69.4

1.40

1.56

July

13

13

12

11

M

49

27

21

38

26

a21

a20

a21

a30

26

21

18

15

14

14

44

33

35

*29

26

28

22

20

17 

16

14

760

24.5

0.495

O.57

Aug.

13

13

11

11

10

10

10

9.7

9.3

8.7

8.4

7.8

9.1

24

14

10

*9.1

8.7

9.5

9.8

8.9

8.2

7.6

7.8

7.8

7.3

6.7

7.7

16 

10

29

333.1

10.7

0.216

0.25

Sept.

40

23

19

14

12

*fll

11

8.9

7.9

*7.1

6.7

6.7

6.7

6.2

779

77

146

124

72

247

123

94

196

673

259

*178

137

112

93 

83

2,802.1

93.4

1.89

2.11

Calendar year 1955 : Max 849 Mln 3.1 Mean 93.3 Cfsm 1.88 In. 25.58

Water year 1955-56 : Max 1,380 Mln 6.2 Mean 115 Cfsm 2.32 In. 31.73

Peak discharge (base. 1.5OO efs).--Mar. 8 (4 p.m.) 1,53O cfs (6.76 ft),- Apr. 4 (8:45 p.m.) 2,96O 

Cfs (8.46 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on
DELAWARE RIVER BASIN 

West Branch Delaware River at Stilesville, N. Y.

197

Location. Lat 42°04'35", long 75°23 I 55", on left bank at Stilesville, Delaware County, 

0.4 mile upstream from Cold Spring Creek and 2 miles northeast of Deposit.

Drainage. 456 sq mi.

Records avialable. July 1952 to September 1956.

Gape . Water-stage recorder. Altitude of gage is 1,000 ft (from topographic map).

Extremes. Maximum discharge during year, 12,200 cfs Apr. 5 (gage height, 7.48 ft); minimum, 

54 cfs Aug. 28 (gage height, 0.77 ft).

1952-56: Maximum discharge, 14,400 cfs Dec. 11, 1952, from rating curve extended 

above 4,600 cfs by logarithmic plotting; maximum gage height, 8.08 ft Aug. 19, 1955; 

minimum discharge, 35 cfs Sept. 4, 1953, Aug. 24, 25, 1954 (gage height, 0.66 ft).

Remarks. Records good except those for periods of ice effect, backwater from aquatic 

vegetation, or no gage-height record, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect or backwater from aquatic

vegetation (gage height. In feet, and discharge. In cubic feet per second)

(Shifting-control method used Mar. 7, 8)

Oct. 1 to Mar. 7 Mar. 8 to Sept. 24

1.3 180

1.6 324

2.0 613

3.0 

4.0 

6.0

1,740

3,290

7,400

0.8 

1.1 

1.4 

1.8 

2.4

59

132

253

525

1,140

3.0 

4.0 

6.0 

7.5

1,910

3,500

7,900

12,300

Sept. 25-30

2.0 675

3.0 1,910

4.0 3,500

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

270 

260

227

*205

195

479

868

847

858

687

596

529

468

453

1,230

*6,520

6.790

4,200

2,980

2,220

1,760

1,490

1,240

1,120

1,470

1,160

1,020

889

816

1,840

*3,030

46,715

1,507

3.30

3.81

Nov.

2.180 

1,820

1,580

1,980

1,750

1,480

1,340

1,240

1,120

1,020

1,020

1,080

a965

al,250

al,250

al,550

*1,860

1,580

1,470

1,360

1,210

1,100

987

1,030

900

795

745

71.5

650

511

37,598

1,253

2.75

3.07

Dec.

560 

540

514

733

1.140

858

700

*760

720

680

620

620

560

480

500

390

370

420

380

270

190 2"5o

290

340

560

680

450

350

350 

*380

360

15,985

516

1.13

1.30

Jan.

350 

300

330

360

350

330

300

250

270

480

1,550

1.6OO

1,450

1,160

1,040

940

840

640

540

600

540

500

480

*380

350

350

350

340

340 

360

410

18,080

583

1.28

1.47

Feb.

390 

330

340

340

500

350

320

*370

370

400

410

580

560

460

490

640

580

660

800

700

620

470

430

400

960

5,200

2,300

1,800

1,500

21,070

727

1.59

1.72

Mar.

1,160 

1,180

1,580

1,830

1,420

1,500

4,940

*8.680

7,180

4,330

3,390

3,640

2,710

2,380

2,050

1,650

1,300

1,350

1,300

1,140

980

900

940

910

760

815

745

*685

675 

645

635

63,400

2,045

4.48

5.17

Apr.

606 

705

1,600

4,780

*11,700

9,220

7,980

5,940

4,250

*3,630

3,390

3,290

3,320

2,880

3,060

4,790

6,390

4,400

3,370

2,640

2,180

2,470

2,420

2,500

2,160

2,020

1,920

1,850

2,720

3,220

111,401

3,713

8.14

9.09

May

*2.650 

2,010

1,740

1,500

1,410

1,200

1,120

964

826

795

785

725

705

675

775

685

705

675

655

588

525

476

444

*476

415

366

386

460

401

353

340

25,810

833

1.83

2.11

June

1,090 

1,210

2.020

1,780

1,500

1,250

1,020

857

725

655

665

534

493

452

386

340

308

270

*234

211

198

194

190

215

202

178

159

152

152

159

17,779

593

1.30

1.45

July

126

120

112

106

195

454

311

234

202

319

220

186

174

194

215

194

163

146

132

129

179

234

303

359

*327

270

220

190

166

149

135

6,464

209

0.458

0.53

Aug.

126

118

106

98

93

90

90

84

80

74

70

68

74

104

135

*106

89

77

75

75

73

71

67

65

63

59

55

62

93

81

162

2,687

86.7

0.190

0.22

Sept.

211 

182

146

115

98

*89

86

81

77

69

65

63

61

59

63

189

675

910

518

1,150

1,020

675

586

4.590

2,710

1,730

1,290

*1,030

841

705

20,084

669

1.47

1.64

Calendar year 1955 : Max 11,200 Mln 37 Mean 896 Cfsm 1.96 In. 26.69

Water year 1955-56 : Max 11,700 Mln 59 Mean 1,058 Cfsm 2.32 In. 31.58

Peak discharge (base, 7,400 cfs).-

9,620 cfs (6.63 ftjj Apr. 5 (11 a.m.

-Oct. 16 (11:45 p.B.) 8,060 cfs (6.27 ft)j Mar. 8 (8:30 p.m.) 

) 12,200 cfs (7.48 ft).

* Discharge measurement made on this day.

a No gage-height record} discharge estimated on basis of records for other stations In the basin

of West Branch Delaware River.

Mote. Stage-discharge relation affected by Ice Dec. 1, 2, Dec. 7 to Feb. 26, Feb. 28 to Mar. 2, 

Mar. 16-23, 25. Backwater from aquatic vegetation Aug. 6-14.

505690 O - 59 - 14
198 DELAWARE RIVER BASIN

Cold Spring Brook at China, N. Y.

Location.--Lat 42°09 I 35", long 75e 23'35", on left bank 1 mile upstream from China, Delaware County, 1.1 miles upstream from mouth, and 3 miles east of North Sanford.

Drainage area. 1.51 sq ml.

Records available. October 1934 to September 1956.

Gage.--Water-stage recorder and concrete control with V-notch weir. Datum of gage Is 

1,490.76 ft above mean sea level, adjustment of 1912 (levels by Corps of Engineers).

Average discharge. 21 years (1935-56), 2.71 cfs.

Extremes. Maximum discharge during year, 68.6 cfs Mar. 8 (gage height, 3.32 ft); minimum, 

0.027 cfs Aug. 27, 28 (gage height, 1.15 ft).

1934-56: Maximum discharge, 335 cfs Oct. 30, 1935 (gage height, 4.5 ft, from floodmarks), from rating curve extended above 55 cfs on basis of theoretical rating; minimum, 0.002 cfs Aug. 31, 1953 (gage height, 1.04 ft).

Remarks. Records excellent except those for periods of Ice effect, which are good, and 

those for periods of no gage-height record or backwater from debris, which are fair. 

This station Is operated In connection with a study of the effect of reforestation on 

streamflow. In addition to records of streamflow, records of precipitation, temperature, and ground-water levels are collected.

Revisions (water years).--WSP 871: 1935-38.

Rating tables, water year 1955-56, except periods of Ice effect or backwater from 

debris (gage height, In feet, and discharge, In cubic feet per second)

Oct. 51 to Jan. 11 Jan. 12 to Sept. 30

1.5

1.6 

1.8 

2.0 

2.5 

2.5 

2.7 

2.9

1.5 0.48

1.6 .78

1.8 1.74

2.0 5.21

2.3 6.70

Note. same as 

following table 

above 2.5 ft.

1.16 0.051

1.2

1.25

1.5

1.4

1.5

1.6

.051

.084

.126

.26

.44

.71

2.0 

2.3 

2.5 

2.7 

2.9 

5.2

1.56

5.03

6.70

10.8

16.5

26.3

54.0

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26 

27

28 

29

30

31

Total

Mean

Cfsm

In.

Oct.

1.20

.88

.71

.61

.54

12.4

6.64

6.89

4.51

5.42

2.71

2.17

1.85

2.89

13.9

24.9

12.6

7.22

5.19

3.92

3.15

2.55

2.17

2.57 

2.79

»2.59 

2.03

1.79 

1.67

11.1

15.1

162.46

5.24

3.47

4.00

Nov.

8.45

5.88

5.44

8.36

5.73

4.75

3.89

3.39

5.03

2.78

5.01

5.12

2.86

5.00

4.44

9.76

1754

5.88

4.75

3.89

5.59

2.94

2.78

2.86 

2.47

2.26 

2.05

1.98 

1.7

1.55

126.43

4.21

2.79

3.11

Dec.

1.4

1.57

1.42

3.10

*3.49

2.94

2.6

2.47

2.55

2.12

1.92

1.74

1.62

*1.45

1.45

1.4

1.5

1.24

1.16

.96

1.08

1.00

^90 1755

2.15

1.4 

1.24

1.08 

1.18

1.16

1.08

50.75

1.64

1.09

1.25

Jan.

1.06

1.02

1.06

1.08

».80

.80

.76

.74

.84

.96

5.O

2.7

2.4

2.5

2.2

2.05

1.8

1.55

1.45

*1.36

1.21

1.10

1.06

.98 

.92

.84 

.78

.72

*786

.86

59.97

1.29

0.854

0.98

Feb.

0.76

.76

.72

7§8" .68

.70

.82

.92

1.12

1.51

1.45

5.66

2.94

2.4

2.86

2.76

2.5

5.59

5.05

2.76

2.15

2.15

1.9

1.75 

8.31

9.87 

*6.04

4.6 

5.4

76.59

2.64

1.75

1.89

Mar.

5.0

5.2

5.55

5.55

5.15

5.52

21.2

34

TJ.5

9.2

9.8

8.2

6.2

5.4

4.4

2.8

2.7

5.0

2.50

2.27

2.13

2.1

 2.05

1.9 

1.8

1.80 

1.68

HI J. . DO

al.65

al.6

167.72

5.41

5.58

4.15

Apr.

al.65

a2.6

as. 6

a46

a50

a59

28.6

16.7

10.8

9.29

10.0

15.2

12.8

14.0

18.0

*59.1

25.0

14.9

10.6

7.84

7.72

15.0

12.6

*9.71 

7.84

8.45 

8.24

11.8 

12.8

9.92

478.76

16.0

10.6

11.79

May

6.53

BTBT

5.09

4.16

3.53

3.13

2.85

2.42

2.20

2.27

1.99

2.56

2.27

2.27

2.20

2.67

2.58

2.67

2.50

2.13

1.92

*1.68

1.51

1.51 

1.08

27?t

2.67 

2.06

1.80

1.71

80.04

2.58

1.71

1.97

June

4.12

4.29

7.40

sToT

5.66

2.85

2.27

1.80

1.46

1.26

1.08

.80

1.29

.76

.58

.48

.40

.52

.28

.240

.248

.218

.56

.28 

.202

*.16S 

.160

.145 

.155

.122

42.585

1.41

0.934

1.04

July

0.104

.100

.088

.084

1-22

.71

.42

.29

.68

.34

.248

.218

.27

.59

.31

.240

.195

.150

.126

.182

.99

.74

.94

*.62 

.47

.38

.31

.248 

.195

.160

.140

11.558

0.575

0.247

0.28

Aug.

0.135

.117

.100

.088

.088

.111

.112

.080

.070

.063

.054

.051

.131

.122

.077

.074

.070

.080

C.155

0.118

 0.066

.038

.056

.046 

.041

.054

'.128

.070

^67

3.147

0.102

0.068

0.08

Sept.

0.72

.32

.218

.155

.122

.112

*.117

.088

.077

.070

.063

.063

.060

ToSo

.108

.95

5.80

4.45

2.19

*7.75

3.03

2.20

7.57

~6"78~7

4.11 

2.94

2.34 

1.80

1.65

74.463

2.48

1.64

1.83

Calendar year 1955 : Max 48.2 Hin 0.019 Mean 3.05 Cfsm 2.01 In. 27.19

Water year 1955-56 : Max 50 Mln 0.031 Mean 3.59 Cfsm 2.38 In. 52.55

Peak discharge (base. 47 cfsK Mar. 8 (time unknown) 68.6 cfs (5.32 ft)s Apr. 5 or 6 (time unknown) 56.2 cfs (3.22 ft); Apr. 16 (1:30 p.m.) 53.0 cfs (5.19 ft)} Sept. 25 (8:50 p.m.) 50.0 cfe 

(5.16 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range In stage, 

and record for Albrlght Creek at East Homer.

c Backwater from debris.

Note. Stage-discharge relation affected by Ice Nov. 29 to Dec. 1, Dec. 7, Dec. 14 to Jan. 4, 

JanTT-19, 22, Jan. 31 to Feb. 5, Feb. 11, 14, 17, 21-24, Feb. 28 to Mar. 2, Mar. 8-18, 22-25, 28 

(no gage-height record Dec. 14 to Jan. 4, Jan. 8-15, 19, Mar. 8-18, 22, 25).
DELAWARE RIVER BASIN 199

Oquaga Creek at Deposit, N. Y.

Location. Lat 42°03'35", long 75°25'40", on left bank 200 ft upstream from washed-out 

dam at rear of Delaware Mills, 400 ft upstream from Mill Street Bridge in Deposit, 

Broome County, and 0.3 mile upstream from mouth.

Drainage area. 66 sq mi, approximately.

Records available.--October 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage is 984.46 ft above mean sea level, datum of 

1929.

Average discharge.--16 years, 113 cfs.

Extremes. Maximum discharge during year, 3,750 cfs Apr. 4 (gage height, 5.94 ft); minimum, 3.3 cfs Aug. 28 (gage height, 1.375 ft).

1940-56: Maximum discharge, 4,400 cfs Mar. 22, 1948 (gage height, 9.21 ft), from 

rating rurve extended above 740 cfs on basis of slope-area determination of peak flow; 

minimum, 0.5 cfs Aug. 3, 1955; minimum gage height, 0.90 ft Oct. 28, 1951.

Remarks. Records 

ord, which are

;ood except those for periods of ice effect or doubtful gage-height recTair.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, 

In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 15, Apr. 4, 5)

Oct. 1-15 Oct. 16 to Apr. 4 Apr. 5 to Sept. 30

1.9 34

2.2 12

2.5 132

2.9 267

3.5 611

4.0 960

5.0 1,910

1.6 16

1.8 30

2.1 66

2.4 126

2.8 255

3.3 525

4.0 1,060

5.0 2,21O

1.39 

1.6

2.3

3.6

8.0

11

24

45

77

2.5 

3.0 

3.5 

4.0 

4.5 

5.0

124

286

541

886

1,32O

1,910

Discharge, In cubic feet per second, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

72

53

 46

40

36

486

306

284

174

137

111

93

79

142

d730

dl.420

64O

364

243

189

152

124

1O3

108

ISO

110

95

*83

81

PC'7 £Q (

446

7,364

238

3.61

4.15

Nov.

264

2O6

185

262

185

161

142

131

114

99

117

121

1O5

174

149

*395

314

232

196

167

144

129

117

114

95

87

81

80

66

li

4,696

157

2.38

2.65

Dec.

58

55

58

149

140

112

*86

84

85

76

76

69

62

50

56

52

50

47

44

30

26

3T

36

45

88

72

45

*33

35 

37

35

1,922

62.0

0.939

1.O8

Jan.

34

3O

39

39

37

35

28

20

29

64

120

16O

144

119

105

85

70

58

*54

54

48

45

39

35

34

31

29

27

31 

38

41

1,722

55.5

0.841

O.97

Feb.

29

25

31

22

39

27

*37

39

42

72

78

157

131

100

122

122

104

140

136

112

90

76

68

60

340

M2. 52T

173

135

3,161

109

1.65

1.78

Mar.

*120

183

263

259

185

430

1,270

 liTTO

*842

482

39O

361

264

236

196

145

140

130

122

110

loo

94

98

94

88

93

92

*86

50

QQOS

QQOV

8,911

287

4.35

5.02

Apr.

95 133~

320

1,580

*1.630

1,O60

1.15O

8O2

*547

492

469

469

471

412

462

757

644

432

320

244

213

333

364

312

244

270

24O

244

266 

*236

15,211

507

7.68

8.57

May

177

154

163

132

119

1O9

112

90

77

86

73

84

109

99

112

119

1O9

127

109

92

79

68

*63

56

48

42 i5B"

139

97 

81

77

3,11O

100

1.52

1.75

June

177

184

303

2T?

168

135

104

84

72

85

75

53

51

46

63

40

38

30

22

 19

17

*16

21

36

20

15

13

11

10 

9.4

2,129.4

71.0

1.O8

1.20

July

8.5

8.2

7.7

55 7.2

67

35

33

33

25

19

15

19

35

27

20

15

11

9.4

11

58

43

36

29

*37

48

29

22

15 

12

10

8OO.O

25.8

O.391

0.45

Aug.

9.7

8.2

7.5

7.O

7.0

7.O

6.8

6.6

5.9

5.4

4.7

4.6

5.2

8.0

7.2

*5.9

5.2

4.7

4.9

4.8

4.6

*4.3

3.9

4.3

4.0

3.7

3.6 4~7T

17 

9.1

76

261.5

8.44

0.128

0.15

Sept.

66

32

22

15

12

*10

12

9.7

8.2

*7.2

6.8

6.6

6.4

6.1

679

87

251

192

94

302

132

92

98

618

2oT

140

*1O6

88

72 

59

2,761.9

92.1

1.40

1.56

Calendar year 1955: Max 1.58O Mln O.9 Mean 118 Cfsm 1-79 In. 24.22

Water year 1955-56 : Max 1,770 Mln 3.6 Mean 142 Cfsm 2.15 In. 29.33

Peak discharge (base. 1.500 cfs).--Oct. 15 (about 11 p.m.) about 2,810 cfs; Mar. 8 (1:45 p.m.) 

2,680 cfs (5.32 ft); Apr. 4 (8:30 p.m.) 3,75O cfs (5.94 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

record for Trout Creek at Cannonsvllle, and apparently unaffected gage-height record for part of 

each day.

Note. Stage-discharge relation affected by Ice Nov. 29 to Dec. 1, Dec, 7, 8, 1O, 11, Dec. 13 to 

Jan. 3, Jan. 7-12, 17-28, Jan. 31 to Feb. 7, Feb. 14, 16-18, 2O-25, 29, Mar. 1, 16-25, 27-29.
200 DELAWARE RIVER BASIN

West Branch Delaware River at Hale Eddy, N. Y.

Location.--Lat 42 0 00'10", long 75 C 23'15", on left bank at downstream side of highway 

bridge in Hale Eddy, Delaware County, 9 miles upstream from confluence of East and 

West Branches near Hancock.

Drainage area. 593 sq mi.

Records available. November 1912 to September 1956.

Gage. Water-stage recorder. Datum of gage is 946.46 ft above mean sea level, datum of 

1929. Prior to Sept. 8, 1928, staff gage at same site and datum.

Average discharge. 43 years (1913-56), 1,067 cfs.

Extremes. Maximum discharge during year, 15,300 cfs Apr. 5 (gage height, 12.42 ft); minimum, 65 cfs Aug. 27 (gage height, 1.39 ft).

1912-56: Maximum discharge, 28,900 cfs Mar. 22, 1948, from rating curve extended 

above 14,000 cfs on basis of contracted-opening determination of peak flow; maximum 

gage height, 15.8 ft Sept. 30, 1924, from graph based on gage readings; minimum discharge, 32 cfs Aug. 4, 1936, Sept. 3, 1939, Aug. 28, 1949; minimum gage height, 1.03 ft 

Aug. 4, 1936.

Maximum discharge known, about 46,000 cfs Oct. 10, 1903 (gage height, 20.3 ft, from 

floodmarks).

Remarks. Records excellent except those for periods of ice effect, which are good. 

Revisions (water years). WSP 756: Drainage area. WSP 871: 1916.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, in feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 5 Apr. 6 to Sept. 30

2.2 

3.0 

4.0 

6.0

345

597

1,340

3,180

8.O 

11.0 

12.2

5,820

11,800

14,800

1.4 

1.8 

2.4

66

148

339

3.O 

4.0

615

1,340

Note. Same as preceding 

table above 4.0 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

l 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

452

393

331

289

267

1,500

1,640

1,560

1,310

1,030

864

742

662

712

1,870

8.710

8,540

5,220

3,690

2,750

2,140

1,780

1,470

1,340

1,780

1,420

1,220

1,080

985

2,260

*4,390

62,397

2,013

3.39

3.91

Nov.

3.000 

2,390

2,O40

2,650

2,250

1,86O

1,660

1,530

1,350

1,220

1,280

1,340

1,160

1,380

*1,640

2,260

2,600

2,130

1,910

1,730

1,520

1,360

1,220

1,240

1,100

964

897

858

777

680

47,996

1,600

2.70

3.01

Dec.

660 

640

629

972

1.420

1,090

897

*917

890

820

760

740

680

600

620

490

430

515

480

330

245

280

370

430

720

860

600

440

440

470

450

19,885

641

1.08

1.25

Jan.

430 

370

390

430

420

400

370

300 315"

580

1,800

2.000

1,800

1,450

1,300

1,180

1,040

*800

700

760

680

620

580

490

430

420

420

400

400

430

CQQ

22,200

716

1.21

1.39

Feb.

47 O

400

410

400

370

400

390

440

450

500

520

780

760

660

700

820

780

860

1,000

900

800

640

560

520

1,350

4,000

3,010

2,380

1,850

27,120

935

1.58

1.70

Mar.

* 1,550 

1,720

2,280

2,550

1,96O

2,510

6,840

*11.400

8,930

5,280

4,130

4,310

3,280

2,870

2,460

1,950

1,550

1,600

1,560

1,340

1,180

1,110

1,100

1,060

903

944

897

*839

832

789

777

80,501

2,597

4.38

5.05

Apr.

765 938"

2,070

6,030

*14.700

12,000

10,600

7,970

5,420

*4,680

4,380

4,260

4,300

3,780

3,990

5,940

8,000

5,470

4,160

3,270

2,690

3,160

3,180

3,180

2,710

2,590

2,460

2,380

3,270

3,750

142,093

4,736

7.99

8.91

May

*3 . 060 

2,340

2,090

1,760

1,600

1,390

1,330

1,130

970

946

922

892

904

850

946

898

904

904

856

778

700

632

594

*594

538

475

620

760

626

543

518

32,070

1,035

1.75

2.01

June

1,44O

1,620

2.670

2,320

1,850

1,510

1,220

1,010

874

814

832

676

620

563

563

442

412

358

317

284

*270

264

276

324

274

*237

215

200

197

177

22,829

761

1.28

1.43

July

164 

153

143

134

594

589

42?

324

270

359

*288

234

222

264

274

250

209

180

164

171

308

332

348

420

*395

370

284

244

206

*180

164

8,359

270

0.455

0.52

Aug.

156 

143

129

117

113

111

111

102

94

89

83

80

89

115

138

*122

104

96

96

*94

92

89

83

81

78

73

69

73

124

111

 255

3,310

107

0.180

0.21

Sept.

324 

257

197

153

126

115

115

104

100

*91

85

83

81

80

83

329

948

1,250

714

1,580

1,280

877

752

4.900

3,250

2,000

1,480

*1,200

1,010

856

24,420

814

1.37

1.53

Calendar year 1955: Max 13,900 Mln 45 Mean 1,155 Cfsm 1.95 In. 26.46

Water year 1955-56: Max 14,700 Mln 69 Mean 1,347 Cfsm Z.27 In. 30.92

Peak discharge (base. 9.600 efs). Oct. 17 (1 a.m.) 10,100 cfs (10.23 ft) 5 Mar. 8 (4:30 p.m.) 

12,800 cfs (Il741 ft); Apr. 5 (6:15 p.m.) 15,300 cfs (12.42 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 30 to Dec. 2, Dec. 10-17, Dec. 19 to Feb. 26, 

FeFTTg, Mar. 1, 16-18.
DELAWARE RIVER BASIN 201

Callicoon Creek at Callicoon, N. Y.

Location. Lat 41°45'40", long 75°02'55", on right bank 0.7 mile southeast of Callicoon, 

Sullivan County, 0.9 mile upstream from mouth, and 1.0 mile southwest of Hortonville.

Drainage area. 111 sq mi.

Records available.--August 1940 to September 1956.

Gage.--Water-stage recorder. Concrete control since July 1944. Datura of gage is 759.84 

rt above mean sea level, datum of 1929.

Average discharge. 16 years, 185 cfs.

Extremes. Maximum discharge during year, 6,180 cfs Oct. 15 (gage height, 6.59 ft), from 

rating curve extended above 2,100 cfs as explained below; minimum, 12 cfs Aug. 27, 28 

(gage height, 1.305 ft).

1940-56: Maximum discharge, 16,000 cfs Aug. 17, 1947 (gage height, 9.68 ft), from 

rating curve extended above 5,100 cfs on basis of slope-area determinations at gage 

heights 6.75 and 9.68 ft; minimum, 5.4 cfs Sept. 11, 12, 1944; minimum gage height 

(subsequent to construction of artificial control), 1.175 ft Sept. 4, 5, 1953.

Remarks. Records good except those for periods of ice effect or doubtful gage-height record, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, In 

feet, and discharge, In cubic feet per second)

Oct. 17 to Feb. 25 Feb. 26 to Sept. 30

2.1 

2.5 

3.0 

3.5 

4.0 

5.0

141

284

543

945

1,490

2,890

1.6 

1.8 

2.1 

2.5

60

129

268

3.0 

3.5 

4.0

538

945

1,490

1.3 

1.5 

1.8 

2.1 

2.5

73

145

287

3.0 

3.5 

4.0 

4.5

553

956

1,490

2,140

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

528

319

243

195

165

2,090

1,380

988

d570

d421

d324

d251

d202

d272

2,620

*2 . 850

1,220

714

506

383

308

248

203

189

240

182

*153

135

132

1,000

808

19,819

639

5.76

6.64

Nov.

446

336

290

420

294

240

217

224

192

*176

278

317

256

402

308

822

660

433

346

308

264

240

210

203

189

169

153

144

*132

Hi

8,785

293

2.64

2.94

Dec.

110

105

1O2

129

179

156

116

105

97

95

90

88

81

65

77

66

76

72

66

50

46

50

68

74

84

68

50

*46

47

50

49

2,557

82.5

0.743

0.86

Jan.

49

44

46

47

49

49

46

41

44

80

160

190

200

140

120

98

84

74

68

72

72

68

66

64

64

*60

54

49

52

64

72

2,386

77.0

0.694

0.80

Feb.

66

62

60

lo- 56

se

66

74

78

86

130

215

192

118

131

150

112

170

200

180

150

116

100

86

434

762

377

*279

200

4,768

164

1.48

1.60

Mar.

161

184

310

416

360

d665

1,020

1.410

813

574

534

509

400

341

290

215

205

190

175

160

145

145

164

170

150

160

193

*208

217

193

221

10,898

352

" 3.17

3.65

Apr.

287

432

d594

1,150

1.750

1,300

1,400

894

d694

d845

784

660

567

473

455

d860

709

478

379

309

263

305

384

*449

355

353

390

336

d616

935

19,386

646

5.82

6.50

May

490

392

462

341

296

275

341

271

240

247

172

209

176

192

259

243

217

284

247

214

145

182

134

111

*101

90

137

167

142

123

120

7,020

226

2.04

2.35

June

d581

d567

~5ZZ 1.050

374

305

221

134

134

145

134

106

96

84

73

66

60

*54

49

46

48

52

76

97

62

46

52

52

42

36.

5,344

178

1.60

1.79

July

34

32

27

27

106

172

111

75

71

54

44

39

44

49

42

35

32

27

25

29

54

57

85

60

117

179

79

54

42

*35

32

1,869

60.3

0.543

0.63

Aug.

30

27

25

23

22

22

32

*22

19

19

18

17

20

27

22

18

17

16

23

*21

19

17

16

16

14

13

13

14

21

18

49

650

21.0

0.189

0.22

Sept.

66

50

31

24

20

19

24

19

18 i?_

*16

16

16

17

21

116

156

162

77

169

90

66

65

314

151

96

73

79

88

71

2,146

71.5

0.644

0.72

Calendar year 1955: Max 3,84O Mln 6.9 Mean 209 Cfsm 1.88 In. 25.61

Water year 1955-56 : Max 2,830 Mln 13 Mean 234 Cfsm 2.11 In. 28.70

Peak discharge (base, 2,2OO cfs). Oct. 6 (12:5O p.m.) 4, 

6,180 cfs (6.59 ft); Apr. 5 (6 p.m.) 2,480 cfs (4.74 ft). 

* Discharge measurement made on this day.

060 cfs (5.66 ft); Oct. 15 (4:45 p.m.)

d Doubtful gage-height record) discharge computed from reconstructed gage-height graph based on 

existing gage-height record, outslde-gage readings, weather records, and records for other stations 

In the Delaware River basin.

Note. Stage-discharge relation affected by Ice Dec. 18 to Feb. 12, Feb. 14, 16-24, Mar. 15-22, 

24, 25.
202 DELAWARE RIVER BASIN

Tenmile River at Tusten, N. Y.

Location. Lat 41°33'50", long 75°00'55", on left bank 0.5 mile downstream from East

Branch Tenmlle River, three-quarters of a mile upstream from mouth, and three-quarters 

of a mile northeast of Tusten, Sullivan County.

Drainage area. 45.0 sq ml.

Records available.--May 1946 to September 1956.

Gage. Water-stage recorder. Altitude of gage Is 750 ft (from topographic map).

Average discharge. 10 years, 73.4 cfs.

Extremes. Maximum discharge during year, 2,370 cfs Oct. 16 (gage height, 5.85 ft); minimum, 4.6 cfs Sept. 11 (gage height, 0.715 ft).

1946-56; Maximum discharge, 6,850 cfs Aug. 19, 1955 (gage height, 9.08 ft), from 

rating curve extended above 1,800 cfs by logarithmic plotting; minimum daily, 1.5 cfs 

Oct. 20-22, 24, 1953; minimum gage height, 0.675 ft Aug. 29, 1954.

Remarks. Records good except those for periods of ice effect, which are fair. Slight 

seasonal regulation by Luxton Lake.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, In 

feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 25 Feb. 26 to Sept. 27 Sept. 27-30

1.0 

1.3 

1.6 

2.0 129

2.5 244

3.0 405

4.0 885

5.0 1,590

1.2

1.6

2.0 134

2.5 246

3.0 405

4.0 885

1.0 

1.3

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17 

18

19

20

21

22

23

24

25

£6 

27

£8 

£9

30

31

Total

Mean

Cfsm

In.

Oct.

101

77

57

46

48

262

609

333

226

162

125

106

90 

119

591

*1.590

654 

391

314

178

147

125

111

96

93

90 

*78

69

68

191

325

7,472

241

5.36

6.18

Nov.

211

158

139

167

145

122

111

109

93

*84

106

131

120

141

145

249

m162

139

131

127

106

93

82

74 

69

65 

64

62

3,931

131

2.91

3.25

Dec.

60

58

58

65

78

74

62

43

36

36

35

34

33 

33

36

34

36 

33

31

25

24

27

31

33

36

29 

25

If

24

23

1,197

38.6

0.858

0.99

Jan.

21

16

17

18

19

20

20

18

20

24

48

74

m73

59

52 

43

35

36

35

32

31

27

26

*25 

24

23 

24

29

37

1,166

37.6

0.836

0.96

Feb.

32

28

28

27

26

26

33

37

37

40

48

74

99

76

69

80

69 

82

120

106

90

68

58

50

88

241 

175

*130 

94

2,131

73.5

1.63

1.76

Mar.

82

83

118

148

132

182

330

469

?BT

278

228

211

184 

162

148

122

110 

104

96

86

80

78

80

87

78

78 

79

*81 

87

81

80

4,613

149

3.31

3.81

Apr.

76

114

158

228

353

398

401

351

268

288

318

302

268 

226

207

240

261 

193

157

148

120

136

155

*189

176

169 

155

143 

259

535

6,992

233

5.18

5.78

May

312

224

234

203

136

127

186

155

121

113

101

83

68 

69

75

76

70 

78

100

88

*70

59

55

48

34

18 

33

40 

29

32

39

3,076

99.2

2.20

2.54

June

316

293

37"5 578

221

160

113

86

79

78

81

68

47

41

38

37

36 

*34

30

29

31

36

36

55

40

34 

34

32 

28

26_

3,092

103

2.29

2.56

July

24

22

21

19

33

57

64

50

35

20

*16

15

16 

27

28

21

18 

16

15

16

29

35

33

28

24

24 

21

19 

16

*15

15

792

25.5

0.567

0.65

Aug.

14

14

13

12

12

12

12

*11

11

10

9.4

9.1

9.6 

10

9.8

8.7

8.6 

8.2

8.9

*8.4

8.9

8.7

8.4

8.0

7.5

fci 7.7 

8.2

8.0

11

302.5

9.76

0.217

0.25

Sept.

11

8.4

7.2

6.4

6.0

7.5

8.0

6.6

5.6

4.8

*4.7

477

4.8 

*4.8

4.8

9.2

12 

15

16

20

21

18

17

45

50

32 

45

31 

22

17

465.5

15.5

0.344

0.38

Calendar year 1955 : Max 3,340 Mln 2.6 Mean 88.5 Cfsm 1.97 In. 26.68

Water year 1955-56 : Max 1,590 Mln 4.7 Mean 96.3 Cfsm 2.14 In- 29.11

Peak discharge (base. 950 efs). Oct. 16 (2:30 a.m.) 2,370 cfs (5.85 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Nov. 29, Dec. 6-8, 10-14, 16, 17, 20-25, 27-31, 

Jan. 2-5, 8-10, 18, 19, 21, 23-30, Feb. 1, 4, 5, 21-25, Feb. 28 to Mar. 1, Mar. 16-22, 25.
DELAWARE RIVER BASIN 203

Delaware River above Lackawaxen River, near Barryvllle, N. Y.

Location.--Lat 41°30'30", long 74°59'15", on left bank 1.6 miles upstream from Lackawaxen 

River and 5.8 miles northwest of Barryvllle, Sullivan County.

Drainage area. 2,023 sq ml.

Records available. October 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 600.22 ft above mean sea level, datum of 

1929.

Extremes. Maximum discharge during year, 40,100 cfs Oct. 16 (gage height, 13.04 ft); minInrum, 590 cfs Sept. 9 (gage height, 2.20 ft).

1940-56: Maximum discharge, 130,000 cfs Aug. 19, 1955 (gage height, 26.40 ft, from 

floodmark In gage house), from rating curve extended above 55,000 cfs on basis of 

slope-area determination at gage height 23.19 ft; minimum, 122 cfs Sept. 5, 1953 (gage 

height, 1.11 ft).

Remarks. Records excellent except those for periods of Ice effect, which are good. Subsequent to September 1954, entire flow from 371 sq ml of drainage area, except during 

periods of release or spillage, diverted from Pepacton Reservoir (see p. 276) through 

Rondout Reservoir In Hudson River basin Into Kenslco Reservoir for municipal supply of 

city of New York.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 5

2.7 

3.0 

4.0 

5.0

900

1,170

2,500

4,550

7.0

9.0

11.0

12.0

10,900

19,200

28,900

34,400

Apr. 6 to Sept. 30

2.6 860

3.0 1,210

4.0 2,500

Note. Same as 

preceding table 

above 4.0 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4 

5

6 

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Itotal

Mean

Cfsm

In.

Oct.

3,990 

3,740

2,890

2,400 

2.080

6,750 

14,200

10,000 

8,210

5,960

4,750

3,990

3,400

3,300

8,840

35.000

25,400

17,100

11,900

8,960

6,980

5,820

4,900

4,290

4,550

4,530 

 3,570

3,140

2,870

8,060

19,800

249,370

8,044

-

-

Nov.

12.500 

8,840

6,930

7,690 

7,620

6,280 

5,850

5,260 

4,450

4,450

4,480

4,780

4,680

4,920

5,940

8,010

10,900

8,670

7,140

6,400

5,360

4,550

4,030

3,830

3,700

3,280 

3,030

2,850

2,690

2.450

171,540

5,718

-

-

Dec.

2,250 

2,080

2,270

2,300 

3,300

3.400 

2,740

2,420 

2,570

2,330

2,190

2,140

2,040

1,750

1,820

1,540

1,320

1,370

1,300

960

1,040

1,140

1,650

1,800

2,000

2,000 

*1,900

1,400

1,400

1,450

1,400

59,270

1,912

-

-

Jan.

1,400 

1,300

1,300

1,350 

1,300

1,300 

1,300

1.250 

1,350

1,700

3,100

3,800

4.500

4,300

3,700

3,300

3,100

2,900

2,400

2,100

2,100

1,900

1,800

1,600

1,400

*1,300 

1,450

1,400

1,500

1,600

1,700

64,500

2,081

-

-

Feb.

1,650 

1,550

1,500

1.400 

1,450

1,500 

1,680

1,720 

1,760

1,830

1,960

2,450

3,100

2,600

2,350

2,600

2,500

2,600

3,400

3,300

3,000

2,500

2,100

1,950

2,500

6,000 

6.600

5,400

*4,200

77,150

2,660

-

-

Mar.

3,600 

3,700

5,000

6,400 

6,200

7,000 

11,500

21,600 

23.400

15,100

11,500

10,400

9,120

7,660

6,790

5,600

4,700

3,800

4,300

3,900

3,800

3,700

3,400

3,400

3,090

2,980

3,140

*2.830

2,990

2,980

2,960

206,540

6,663

-

-

Apr.

2.990 

3,700

4,910

9,230 

26,500

51.500 

28,400

24,300 

16,500

14,000

13,400

12,600

12,500

11,400

11,000

14,600

26,700

21,500

16,200

12,800

9,990

9,470

11,000

11,700

*9,910

9,190 

9,400

8,570

12,100

18,200

 

424,260

14,140

-

-

May

15.400 

11,500

10,700

8,940 

7,560

6,520 

6,580

5,800 

4,800

4,360

4,220

3,990

4,010

5,850

3,870

4,170

3,940

4,060

4,220

4,010

*3,590

3,360

5,120

2,920

2,780

2.570 

2,580

3,460

3,360

2,920

2,810

155,970

5,031

-

-

June

4,940 

6,200

12.000

10,600 

7,850

6,280 

5,220

4,360 

3,760

3,500

5,570

5,160

2,870

2,710

2,440

1,880

1,650

*1,550

1,430

1,310

1,380

1,570

1,610

1,890

1,770

1,230 

1,120

1,140

L.060

1,200

 

101,250

3,375

-

-

July

1,230 

1,260

1,350

1,330 

1,600

2.680 

2,670

1,640 

1,260

1.110

1,250

1,210

1,320

1,560

1,610

1,380

1,260

1,150

1,290

1,330

1,490

1,790

1,800

1,500

1,490

1,680 

1,610

1,270

1,210

1,290

*1,320

45,940

1,482

-

-

Aug.

1.300 

1,270

1,230

1,200 

1,180

1,180 

1,190

1,180 

1,140

1,120

1,100

1,070

1,100

1,160

1,180

1,160

1,140

1,100

1,120

*1,090

1,110

1,080

1,060

1,020

1.000

1,020 

1,040

1,050

1,110

1,150

1,270

35,120

1,133

-

-

Sept.

1,540 

1,810

1,560

1,360 

1,250

1,210 

1,180

900 

95?

1,080

*1,080

1,080

1,060

1,030

1,050

1,250

2,310

3,150

2,340

1,970

3,380

2,420

1,820

2,940

6.830

3,830 

2,850

2,340

2,080

1,810

59,412

1,980

-

-

Calendar year 1955: Max 85,000 Mln 479 Mean 3,799 Cfsm - In. -

Water year 1955-56: Max 33,000 Mln 900 Mean 4,509 Cfsm - In.

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 19 to Feb. 6, Feb. 13 to Mar. 6, Mar. 16-23 

(no gage-height record Dec. 23-27, Jan. 12, 13, 17-26).
204 DELAWAKE RIVER BASIN

West Branch Lackawaxen River at Prompton, Pa.

Location. Lat 41°35'15", long 75°19'40", on right bank 1,500 ft upstream from highway 

bridge at Prompton, Wayne County, and 2,000 ft upstream from Van Auken Creek.

Drainage area. 59.7 sq mi.

Records available . August 1944 to September 1956. Prior to October 1952, published as 

Lackawaxen River at Prompton.

Gage. Water-stage recorder. Datum of gage is 1,083.78 ft (corrected) above mean sea 

level, datum of 1929, supplementary adjustment of 1943.

Average discharge. 12 years, 119 cfs.

Extremes. Maximum discharge during year, 3,340 cfs Oct. 16 (gage height, 6.69 ft); minimum, 11 cfs Aug. 26, 27; minimum gage height, 0.88 ft Aug. 26.

1944-56: Maximum discharge, 5,860 cfs Aug. 18, 1955 (gage height, 9.24 ft), from 

rating curve extended above 3,600 cfs by logarithmic plotting; minimum, 4.4 cfs Sept. £ 

1944 .

Flood of May 23, 1942, reached a stage of 16.7 ft, from floodmarks.

Remarks. Records good except those for periods of ice effect, which are fair.

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

1948-49, superseding those published in WSP 1111 and 1141, are given herewith:

Date

1948 

Sept. 23 

24 

25 

26 

27

Discharge

20 

18

16 

15 

14

Date

1948-Con. 

Sept. 28 

29 

30 

Oct. 1 

2

Discharge

18 

20 

24 

27 

23

Date

1948-Con. 

Oct. 3 

4 

5 

6 

7

Discharge

21 

18 

20 

20 

17

Date

1948-Con. 

Oct. 8 

9 

10 

11

Discharge

15 

17 

14 

27

Month

Hater year 1947-48. .............

Water year 1948-49. .............

Cfs-days

35,778.0

26,922.0

32,290.6

Maximum

26

1,720

44

1,720

1,200

Minimum

9.8

9.8

11

9.8

5.7

Mean

17.5

97.8

18.3

101

88.5

Per square 

mile

0.293

1.64

.307

1.69

1.48

Runoff in 

inches

0.-33

22.29

.35

23.00

20.11

Rating table, water year 1955-56, except periods of ice effect (gage

height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Aug. 10-12, 16-18, 21-28)

0.7

.9

1.1

1.3 

1.6 

2.0

116

231

3.0 606

4.0 1,160

5.0 1,860

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

173

95

77

64

58

1,040

561

423

296

228

173

132

*107

246

1,010

1,850

668

434

313

234

182

148

126

132

150

114

111

104

98

1,350

964

11,641

376

6.30

7.25

Nov.

427

3O6

250

263

200

170

148

134

124

119

134

167

162

237

181

*606

378

257

219

191

170

148

134

148

126

119

119

116

104

107

5,964

199

3.33

3.72

Dec.

94

91

91

125

150

92

78

74

74

68

64

62

62

66

60

64

62

54

52

*40

37

36

40

46

58

60

50

40

37

40

39

1,986

64.1

1.07

1.24

Jan.

38

34

35

42

45

43

41

36

33

56

110

140

115

66

62

56

45

37

36

39

38

36

35

32

*32

29

26

24

26

43

50

1,480

47.7

0.799

0.92

Feb.

45

42

40

36

37

37

42

50

54

64

110

160

140

110

140

130

110

160

150

120

96

78

80

84

298

383 2"16~

170

142

3,324

115

1.93

2.07

Mar.

*137

178

274

273

241

353

485

820

486

379

348

327

266

231

194

135

145

140

135

125

120

110

107

104

84

91

98

98

100

95

98

6,777

219

3.67

4.22

Apr.

121

156

285

555

*910

784

918

580

450

441

453

454

427

362

387

600

507

351

286

241

203

257

294

283

253

280

286

260

285

319

11,988

4OO

6.70

7.47

May

225

222

266

206

182

164

237

170

140

155

130

120

120

105

96

*88

81

116

114

102

87

75

66

59

52

48

80

73

59

52

61

3,751

121

2.03

2.34

June

278

235

462

266

206

164

137

111

93

98

102

73

66

58

49

46

43

39

35

32

33

38

32

38

31

28

 31

29

25

23

2,301

96.7

1.62

1.81

July

22

23

23

23

92

98

63

43

35

31

29

27

28

32

31

27

24

23

21

24

59

64

55

45

36

55

40

33

28

22

22

1,178

38.0

0.637

0.73

Aug.

21

20

18

18

16

18

21

*18

16

14

14

14

16

21

16

14

14

12

19

16

14

14

12

12

12

11

TT

14

29

20

38

523

16.9

0.283

0.33

Sept.

42

41

25

19

16

16

19

17

14

13

12

12

12

14

17

75

77

95

*40

138

72

52

64

171

92

70

56

55

59

50

1,455

48.5

0.812

0.91

Calendar year 1955: Max 2,440 Min 5.8 Mean 142 Cfsm 2.38 In. 32.32

Water year 1955-56: Max 1,830 Min 11 Mean 145 Cfsm 2.43 In. 33. Ol

Peak discharge (base, 1.900 cfs). --Oct. 6 (4 D.m.) 2.440 cfs (5.71 ft}: Oct. 16 (2:30 a.m.) 3.340

cfs (6.69 ft); Oct. 30 (5:30 p.m.) 2,800 cfs (6.11 ft).

* Discharge measurement made on this day.

Note . Stage -discharge relation affected by Ice Dec. 1, Dec. 3 to Feb. 24, Mar. 16-22, 25 (no

gage-height record Dec. 22-24, Dec. 28 to Jan. 4, Jan. 7-9, 21, 28, Feb. 4, 5).
DELAWARE RIVER BASIN 205 

Dyberry Creek at Dyberry, Pa.

Location Lat 41°37'40", long 75°15i45", near center of span on upstream side of bridge

 on State Highway 90, 0.4 mile downstream from Big Brook, 0.6 mile south of Dyberry, 

Wayne County, and 4.5 miles north of Honesdale.

Drainage area. 63.2 sq mi.

Records available.--October 1943 to September 1956.

Gage.--Wire-weight gage and crest-stage indicator; gage read twice daily. Datum of gage

 is 984.40 ft above mean sea level, datum of 1929, supplementary adjustment of 1943.

Average discharge. 13 years, 117 cfs.

Extremes. Maximum discharge during year, 2,940 cfs Oct. 16 (gage height, 10.28 ft); mini-

 mum observed, 3.9 cfs Aug. 28 (gage height, 3.72 ft).

1943-56: Maximum discharge, 15,500 cfs July 10, 1952 (gage height, 14.6 ft), from 

rating curve extended above 2,500 cfs on basis of slope-area determination at gage 

height 13.78 ft; minimum observed, 2.0 cfs Oct. 5, 1953 (gage height, 3.38 ft). 

Flood of May 23, 1942, reached a stage of 15.86 ft, from floodmarks.

Remarks.--Records good except those for periods of ice effect, which are fair. 

Revisions (water years),. WSP 1382: 1947(M), 1950(M), 1951-53.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 3-5, 12-15, Nov. 1-16, 

Feb. 29, Mar. l)

Oct. 1 to Mar Mar. 9 to Sept. 30

3.8

3.9

4.0 

4.2 

4.6 149

5.0 

6.0 

7.0

243

524

862

1,690

3.7

3.8

3.9

4.1

4.6 

5.0 

6.0

7.5

110

230

480

1,060

Discharge, in cubic feeb per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

127

84

76

67

58

1,010

651

557

230

182

160

116

90

*320

1,060

1.670

632

579

256

206

171

149

125

108

138

106

104

92

84

1,100

906

10,794

348

5.51

6.55

Nov.

337

218

182

283

194

160

136

129

112

125

158

149

160

256

171

*586

482

269

250

194

182

160

145

140

154

123

110

100

94

.86

5,785

193

3.05

3.40

Dec.

80

82

88

202

188

102

78

78

78

71

64

56

50

47

50

48

41

39

36

*27

25

26

28

33

40

38

32

27

24

25

24

1,827

58.9

0.932

1.08

Jan.

23

21

22

24

24

25

22

20

20

53

119

160

160

84

69

60

50

35

33

36

34

52

31

30

*31

26

18

IS

16

32

36

1,559

45.8

0.693

0.80

Feb.

52

30

28

25

26

26

30

35

58

50

80

171

127

71

119

102

76

160

182

127

75

62

71

75

250

580

171

112

75

2,806

96.8

1.55

1.65

Mar.

*67

121

218

218

160

404

585

1.060

636

321

307

267

203

191

141

93

123

97

100

85

61

79

89

71

47

73

65

50

73

69

73

6,147

198

3.13

3.62

Apr.

no

137

265

621

n.ooo

943

1.020

605

450

421

480

450

421

335

307

480

421

321

216

203

167

203

228

254

216

241

241

203

268

372

11,599

387

6.12

6.83

May

216

216

254

191

150

137

241

167

134

141

123

117

130

119

97

*91

75

102

106

89

77

69

69

65

54

54

65

89

67

54

50

3,609

116

1.84

2.12

June

197

275

140

349

216

167

128

97

85

81

95

75

73

61

54

48

40

36

34

32

36

58

32

47

58

32

*28

50

26

23.

5,209

107

1.69

1.89

July

20

19

17

17

82

127

97

75

44

32

28

24

37

50

30

24

24

20

17

19

35

38

38

34

28

34

30

26

19

17

15

1,115

36.0

0.570

0.66

Aug.

13

12

12

10

9.3

8.4

9.5

*12

12

10

8.4

7.5

8.4

11

9.3

7.1

5.3

6.0

11

9.3

7.5

7.5

7.5

6.7

6.0

5.3

4.6

4. 5

9.3

9.3

26.

285.3

9.20

0.146

0.17

Sept.

38

36

24

19

15

16

17

14

10

9.3

7.5

6.7

7.5

7.1

6.7

MI

85

95

*61

85

73

45

35

89

79

48

41

42

44

41

1,241.8

41.4

0.655

0.73

Calendar year 1955: Max 3,990 Min ?.9 Mean 134 cfsm 2.12 In. 28.79

Water ater year year 1955-56: 1955-56: Max Max 1,670 1,670____Min Min 4.3 4.5____Mean Mean 136 156____Cfsm Cfsm 2.15 2.15 In. In. 29.50 29.50_________

Peak discharge (base. l.SOO efs). Oct. 6 (l p.m.) 2,150 cfs (9.38 ft); Oct. 16 (2 a.m.) 2,940 cfs 

10.28 ft); Oct. 30 (6:30 p.m.) 2,300 cfs (9.59 ft); Mar. 8 (8 p.m.) 1,810 cfs (8.86 ft); Apr. 5 

11:30 p.m.) 1,810 cfs (8.87 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 11 to Jan. 9, Jan. 19 to Feb. 11.
206 DELAWARE RIVER BASIN

Lackawaxen River near Honesdale, Pa.

Location. Lat 41°33'45", long 75°14'55", 50 ft from left abutment on downstream side of 

Lemnizer Bridge (Brown Street) In Honesdale, Wayne County, and 1.2 miles downstream 

from Dyberry Creek.

Drainage area. 164 sq ml.

Records available. October 1948 to September 1956.

Gage. Wire-weight gage and crest-stage indicator; gage read twice daily. Datum of gage 

is 946.34 ft above mean sea level, datum of 1929, supplementary adjustment of 1943.

Average discharge. 8 years, 320 cfs.

Extremes. Maximum discharge during year, 7,450 cfs Oct. 16 (gage height, 8.62 ft); minimum observed, 22 cfs Aug. 25, 26, 27, 28 (gage height, 0.47 ft). -

1948-56: Maximum discharge, 18,600 cfs Aug. 18, 1955 (gage height, 15.52 ft), from 

rating curve extended above 11,000 cfs by logarithmic plotting; minimum observed, 10 cfs 

Aug. 29, Sept. 1, 1953; minimum gage height observed, 0.33 ft July 1, 2, 1953.

Maximum stage known, 24.5 ft in May 1942, from data furnished by Corps of Engineers 

(discharge, about 34,000 cfs).

Remarks.--Records good except those for periods of ice effect, which are fair.

Rating tables, water year 1955-56, except periods of ice effect (gage

height, In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 7-10, 14-21, Oct. 30 to Nov. 6, 

Nov. 12-21, Feb. 13, 16, 18, 19)

Oct. 1 to Feb. 25 Feb. 26 to Sept. 30

0.8 

1.0 

1.5 

2.0

127

355

620

3.0 1,300

5.0 3,100

6.6 4,860

0.4 

.5 

.7

1.0

26

60

137

1.5 333

2.0 578

3.0 1,240

4.6 2,700

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

482

298

232

187

152

2,520

2,390

1,150

680

538

430

331

*284

*469

2,910

4.810

1,780

1,000

740

565

455

380

355

307

380

307

255

232

228

2,130 

2,630

29,607

955

5.82

6.71

Nov.

1,000

710

565

740

510

430

380

380

331

293

380

455

455

698

544

1.600

*1,160

680

565

510

455

405

355

380

331

298

284

265

232

Hi

15,605

520

3.17

3.54

Dec.

219

192

200 

331

355

260

205

187

182

178

170

160

150

127

135

135

130

125

*120

100

90

86

92

100

125

130

120

100

90

94 

92

4,780

154

0.939

1.08

Jan.

88

80

82 

90

98

96

92

82

76

140

260

570

355

232

200

175

145

110

105

120

115

110

105

*100

100

90

70

60

62

100 

130

4,038

130

0.793

0.92

Feb.

120

110

105 

96

100

100

105

125

130

160

242

473

455

355

355

430

288

430

455

380

270

210

205

219

794

905

632

476

»379

9,104

314

1.91

2.06

Mar.

333

403

605 

660

552

1,010

1,480

2.500

1,550

940

870

771

605

552

403

330

320

350

350

320

270

240

250

240

210

247

260

289

281

268 

289

17,528

565

3.45

3.97

Apr.

403

476

780 

*1,490

*2.510

2,050

2,500

1,650

1,240

1,160

1,240

1,160

1,080

838

905

1,240

1,080

771

632

526

452

552

660

688

605

632

688

602

821

1,120

30,151

1,005

6.13

6.84

May

660

594

171 

552

476

427

660

476

579

579

555

311

311

276

268

*243

219

311

289

251

219

192

174

154

137

125

211

196

160

154 

239

10,127

327

1.99

2.30

June

1,000

814

1.700 STO

605

452

579

289

251

333

311

227

196

167

150

140

122

105

95

85

82

103

90

111

90

*73

*90

80

67

56

9,133

304

1.85

2.07

July

54

54

54 

49

252

289

188

128

100

80

71

67

90

95

80

67

58

55

51

80

111

111

117

95

80

117

90

78

69

55

2,919

94.2

0.574

0.66

Aug.

48

45

43 

42

40

43

45

45

*42

58

54

54

40

47

40

54

32

30

47

40

40

50

27

26

23

23

22

40

54

38

az

1,217

39.0

0.240

0.28

Sept.

92

87

60

47

40

49

47

45

32

29

26

26

26

29

34

156

177

220

*108

254

154

108

98

384

239

163

125

120

144

120

3,239

108

0.659

0.73

Calendar year 1955 : Max 8,920 Min 16 Mean 367 Cfsm 2.24 In. 30.34

Water year 1955-56 : Max 4,810 Min 22 Mean 376 Cfsm 2.29 In. 31.16

Peak discharee (base, 3,000 cfs). --Oct. 6 (6 o.m. ) 5.840 cfs (7.38 ft): Oct. 16 (3 a.m.) 7.450 cfs

(8.62 ft); Oct. 30 (9 p.m.) 5,340 cfo (7.00 ft); Nov. 16 (5 a.m.) 3,000 cfs (5.05 ft)j Mar. 8

(5:30 p.m.) 3,510 cfs (5.40 ft); Apr. 5 (10 p.m.) 3,200 cfs (s.10 ft).

Discharge measurement made on this day. 

Hojte..--Stage-discharge relation affected by ice Dec. 11-13, Dec. 15 to Jan. 12, Jan. 15 to Feb. 10, 

Feb. 21-23, Mar. 16-25 (no gage-height record Dec. 21-24, 26-50, Jan. 1-10, 18-20, 22, 23, 25-29, 

Jan. 31 to Feb. 7).
DELAWARE RIVER BASIN 207

Middle Creek near Hawley, Pa.

Location. Lat 41e 29'05", long 75e 13i20", on downstream side of left span of highway 

bridge near center pier, 0.1 mile downstream from Red Shale Brook, 2 miles northwest 

of Hawley, Wayne County, and 2.5 miles upstream from mouth.

Drainage area. 78.4 sq mi.

Records available. August 1944 to September 1956.

e. Wire-weight gage and crest-stage indicator; gage read twice daily. Datum of gage 

s 1,017.73 ft above mean sea level, unadjusted.

Average discharge. 12 years, 138 cfs.

Extremes.--Maximum discharge during year-, 4,030 cfs Oct. 16 (gage height, 9.01 ft); minimum observed, 7.2 cfs Aug. 26 (gage height, 0.09 ft).

1944-56: Maximum discharge, 12,000 cfs Aug. 19, 1955 (gage height, 17.87 ft), from 

rating curve extended above 3,600 cfs on basis of slope-area determinations at gage 

heights 13.22 and 17.87 ft; minimum observed, 2.3 cfs Sept. 4, 1953; minimum gage height, 

that of Aug. 26, 1956.

Flood of May 23, 1942, reached a. stage of about 18 ft.

Remarks. Records good except those for periods of ice effect, which are fair-.

Rating tables, water year 1955-56, except periods of Ice effect (gage

height, In feet, ana discharge, In cubic feet per second) 

(Shifting-control method used Oct. 31 to Nov. 9, Nov. 11-26, Dec. 5)

Oct. 1 to Apr. 30

l.O 

1.5

2.0 276

3.0 571

5.0 1,420

8.1 3,350

0.0

.1

May 1 to Sept. 30

4.0

7.5

23

1.2 109

2.0 276

3.0 571

4.3 1,08O

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

109

106

78

56

Ii

67O

1,240

573 

376

229

166

120

99

232

1,460

*5.290

*1,260

679

441

327

240

196

156

203

252

186 

138

109

99

1,310 

1,290

15,738

508

6.48

7.47

Nov.

504

314

264

354

252

196

166

166 

147

129

176

276

327

411

441

746

*780

382

288

264

218

196

166

196

166

138 

120

111

90

Ii

8,063

269

3.43

3.82

Dec.

79

79

90

120

166

111

79

76 

69

66

62

60

56

52

54

56

52

52

*52

45

36

35

37

41

5O

54 

47

37

34 

35

33

1,915

61.8

0.788

0.91

Jan.

32

29

30

31

32

32

31

27 

27

50

130

160

140

76

72

64

50

42

41

43

42

40

38

35

35

31 

28

25

28 

40

54

1,535

49.5

0.631

0.73

Feb.

47

44

42

35

37

38

43

54 

58

70

130

460

380

180

200

210

130

170

180

150

100

78

72

76

350

700 

330

229

176

4,769

164

2.09

2.26

Calendar year 1955 : Max 6,740 Min 2.7

Mar.

*156

207

382

327

264

382

646

861 

783

441

340

354

276

252

218

160

180

170

140

140

125

110

115

110

100

129 

147

176

166

166

8,161

263

3.35

3.87

Apr.

192

354

530

*906

1,230

756

717

679 

606

642

717

642

504

382

340

382

340

264

218

186

156

207

327

382

276

301 

340

272

1,110 

1.560

15,538

518

6.61

7.37

May

664

411

642

441

327

252

622

411 

301

240

229

196

176

145

126

126

*109

155

176

118

94

80

70

68

58

57 

84

102

78 

64

64

6,686

216

2.76

3.17

June

784

665

1.O60

583

354

229

165

126 

102

94

229

118

83

72

64

48

62

52

38

33

30

36

29

59

36

*26 

32

41

26 

22

5,318

177

2.26

2.52

July

21

19

18

IS

80

160

102

126 

69

47

36

28

29

49

59

39

30

23

19

20

58

68

66

60

38

31 

27

23

22

18

1,417

45.7

0.583

0.67

Aug.

14

12

12

10

9.8

10

11

*1! 

11

10

10

9.3

9.8

13

17

19

11

9.8

10

14

15

15

12

10

8.4

1^2, 

10

7.5

9.3 

9.8

23

362.9

11.7

0.149

0.17

Sept.

57

42

29

1 ft J-O

14

15

37

22 

18

14

12

12

10

8.O

874

17

57

70

 43

48

58

34

27

264

T45

75 

55

48

66 

57

1,380.4

46.0

O.587

0.65

Mean 170 Cfsm 2.17 In. 29.42

Water year 1955-56 : Max 3,290 Min 7.2 Mean 194 Cfsm 2.47 In. 33.61

Peak discharge (base. 1.500 cfs). Oct. 6 (11:30 p.m.) 1,960 cfs (5.97 ft); Oct. 16 

4,030 cfs (9.01 ft); Oct. 30 (9 p.m.) 2,790 cfs (7.36 ft); Nov. 16 (8 p.m.) 1,850 cfs 

Apr. 5 (2 a.m.) 1,850 cfa (5.8 ft); Apr. 30 (3 a.m.) 2,080 eta (6.2 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 11 to Feb. 27, Mar. 16-25.

(9 a.m.) 

(5.77 ft);
208 DELAWARE RIVER BASIN 

Lackawaxen River at Hawley, Pa.

Location. Lat 41°28'35", long 75°10'25", on left bank at bridge, at Hawley, Wayne County,

 700 ft upstream from Wallenpaupack Creek and 550 ft downstream from Middle Creek.

Prior to Feb. 14, 1956, at site 1,000 ft downstream. Records exclude flow of Wallenpaupack Creek which is diverted around station to hydroelectric plant downstream.

Drainage area. 290 sq mi (excludes that of Wallenpaupack Creek, which is 228 sq mi).

Records available . --August 1938 to September 1956 in reports of Geological Survey. July

 1908 to September 1917, October 1917 to December 1919 (gage heights and discharge 

measurements only) , and August 1938 to September 1941 In reports of Pennsylvania 

Department of Forests and Waters.

Gage . Wire-weight gage and crest-stage indicator; gage read twice daily. Datum of gage

~i!s 869.00 ft above mean sea level, datum of 1929. Prior to 1938, chain gage at same 

site and datum. Aug. 10, 1938, to Aug. 19, 1955, water-stage recorder and Aug. 20, 

1955, to Feb. 13, 1956, staff gage, at site 1,000 ft downstream at same datum.

Average discharge. 25 years (1909-12, 1913-17, 1938-56), 494 cfs.

Extremes . --Maximum discharge during year, 10,600 cfs Oct. 16 (gage height, 8.13 ft, site 

then In use); minimum observed, 39 cfs Aug. 28 (gage height, 1.56 ft).

1908-19, 1938-56: Maximum discharge, 51,900 cfs Aug. 19, 1955 (gage height, 24.8 ft 

at present site, 20.6 ft at former site; from floodmark) , from rating curve extended 

above 12,000 cfs on basis of slope-area determination at gage height 24.2 ft at present 

site, 20.1 ft at former site; minimum daily, 7 cfs Aug. 20, 1911.

Flood in March 1936 reached a stage of 19.1 ft at present site, 13.9 ft at former 

site, from floodmarks (discharge, 27,600 cfs).

Remarks . Records fair. Records of chemical analyses for the water year 1956 are given In

.

Revisions (water years) .--WSP 951: 1938-41. Revised figures of discharge, In cubic feet 

 per second, for the water year 1942, superseding those published In WSP 951, are given 

herewith :

Apr. 1, 1942.

Month Cfs -day a

240,478

Maximum

28,100

Minimum

SO

Mean

659

Per square

mile

2.19

1.65

2.27

Runoff In 

Inches

2.44

22.39

30.84

Rating tables, water year 1955-56 (gage height. In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Nov. 2-16; stage-discharge relation 

affected by Ice Dec. 9 to Feb. 12, Feb. 15-25)

Oct. 1 to Feb. 14 Feb. 15 to Sept. 30

1.7 

2.0 

2.5 

3.0

110

188

384

675

4.0 1,540

5.0 2,950

6.0 4,840

7.6 9,130

2.1 

2.5

64

115

207

3.0 380

4.0 880

6.0 2,170

7.7 3,530

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

840

580

410 

337

294

3,770

4,230

1,880

1,330

1,010

81O

675

610

853

4,380

9,010 

*3,800

2,080

1,480

1,180

925

775

675

610

810

642

550

462

435 

4,340

5,170

54,953

1,773

6.11

7.05

Nov.

2,240

1,540

1,18O 

1,65O

1,180

974

974

848

675

675

740

1,100

1,230

1,600

*1,330

2,650 

2,560

1,430

1,230

1,100

925

848

740

740

675

610

550

550

490 

455

33,469

1,116

3.85

4.29

Dec.

360

384

410 

590

708

520

360

337

320

310

300

280

260

230

240

250 

240

230

220

190

*160

150

TB5

170

210

240

230

180

160 

170

170

8,734

282

0.972

1.12

Jan.

160

140

145 

155

175

170

165

140

130

220

450

620

435" 640

380

320 

260

210

190

210

210

200

190

*180

175

160

130

155" 115

180

220

7,190

232

0.800

0.92

Feb.

210

200

190 

Teo" 175

180

190

220

240

280

450

1,200

1,140

*675

700

800 

540

700

800

700

500

360

320

310

1,100

2,110

1,160

832

*585

17,047

588

2.03

2.19

Mar.

510

585

1,170 

1,170

990

1,410

2,140

5,240

2,410

1,610

1,420

1,290

1,050

935

825

660 

585

635

585

442

442

420

465

442

380

442

488

510

510

535

28,784

929

3.20

3.69

Apr.

788

1,050

1,370 

*2,220

3.500

3,100

2,930

2,550

1,820

1,940

2,030

2,040

1,800

1,470

1,410

1,820 

1,640

1,290

990

880

715 885"

1,070

1,290

1,050

1,110

1,230

1,070

2,090

2,820

49,963

1,665

5.74

6.41

May

1,520

1,140

1.580 

1,170

990

825

1,380

1,050

770

770

660

610

560

510

510

442 

*400

465

560

465

400

340

303

286

236

55~6 222

380

286

222

252

19,610

633

2.18

2.51

June

1,760

1,480

2,580 

1,640

1,110

825

660

535

442

461

715

465

360

303

252

222 

222

 194

155

144

133

169

150

208

135

 121

131

150

117

94

15,933

531

1.83

2.04

July

96

91

»8l 

78

286

488

380

286

222

148

121

113

111

169

169

125 

106

91

81

81

187

268

194

194

146

157

142

119

106

91

82

5,009

162

0.559

0.64

Aug.

74

72

66 

63

59

59

*62

63

57

57

52

52

57

64

66

57 

51

47

52

*60

62

54

48

47

43

40

4T

40

60

103

1,787

57.6

0.199

0.23

Sept.

181

157

102 

74

60

73

93

74

62

52

48

46

45

44

42

230 

261

*400

194

372

288

181

183

765 4"88

303

222

194

268

222

5,724

191

0.659

0.73

Calendar year 1955: Max 26,800 Mln 19 Mean 741 Cfsm 2.56 In. 32.18

Water year 1955-56: Max 9,010 Mln 40 Mean 678 Cfsm 2.34 In. 31.82

Peak discharge (base, 6.0OO cfs). --Oct. 6 (1 p.m.) 9.420 cfs (7.68 ft): Oct. 16 (7 a.m.) 10,600

cfs (8.13 ft); Oct. 30 (10 p.m.) 8,570 cfs (7.36 ft).

* Discharge measurement made on this day.
DELAWARE RIVER BASIN 209

Wallenpaupack Creek at Wilsonville, Pa.

Location. At hydroelectric plant of Pennsylvania Power & Light Co. at lower end of penstock, at Kimble, 3 miles east of dam at lat 41°27'35", long 75°11'10", at Wilsonville, 

Wayne County, and 1-J- miles south of Hawley.

Drainage area. 228 sq mi.

Records available. October 1918 to September 1921 and June 1926 to September 1956 in reports of Geological Survey. June to December 1909 (gage heights and discharge measurements only) and January 1910 to September 1941 in reports of Pennsylvania Department of 

Forests and Waters.

Gage. Prior to Nov. 3, 1925, staff gage at site 1,000 ft downstream from dam at datum 

1,146.78 ft above mean sea level, unadjusted.

Average discharge.--4Q years (1913-22, 1925-56), 373 cfs (adjusted for storage).

Extremes. 1913-22, 1925-56: Maximum daily discharge, 4,840 cfs Mar. 29, 1914; no flow at 

times each year subsequent to Nov. 3, 1925.

Remarks. Records good. Daily discharge determined from flow through turbines, computed 

from records of generator output, and flow over roller gates, computed on basis of head 

on gates. On basis of data supplied by the Pennsylvania Power & Light Co., leakage 

from the penstock, not included in computed discharges, varies from 1 to 2 cfs in the 

late spring, summer and fall, and from 3 to 5 cfs during the remainder of the year; 

leakage through the turbines during shutdown periods varied from 1 to 3 cfs. No flow 

over spillway during year. Flow regulated by Lake Wallenpaupack (see p. 276).

Cooperation. Records of generator load, operation of powerplant, net operating head, and 

water-surface elevations in lake furnished by Pennsylvania Power & Light Co., in connection with a Federal Power Commission project.

Revisions. WSP 756: Drainage area. Revised figures of discharge, in cubic feet per 

second, for the water years 1920-21, superseding those published in WSP 501 and 521, 

are given herewith:

Date

1920

May 28

29

30

31

June 1

2

3

4

5

6

7

8

9

10

11

Discharge

320

270

240

210

200

190

180

210

380

500

420

350

320

280

270

Date

1920-Con.

June 12

13

23

24

25

26

27

28

29

30

1921

June 1

2

3

Month

May 1920. ...........

June ................

Water year 1919-2O

Calendar year 192O

June 1921. ..........

Water year 1920-21

Calendar year 1921

Discharge

250

230

340

290

260

240

220

210

200

250

195

180

170

Maximum

700

701

3,223

3,223

195

3,254

3,254

Date

1921 -Con.

June 4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Minimum

210

180

47

47

74

10

10

Discharge

155

150

160

170

140

125

115

105

120

115

105

94

90

92

98

Mean

442

315

489

548

115

433

341

Date

1921-Con.

June 19

20

21

22

23

24

25

26

27

28

29

30

Per square 

mile

1.94

1.38

2.14

2.40

.504

1.90

1.50

Discharge

92

86

82

80

80

80

82

76

74

74

120

150

Runoff in 

inches

2.24

1.54

29.18

32.74

.56

25.80

20.33

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tbtal

Mean

Oct.

0

36

889

615

639

693

665

O

0

782

624

410

351

738

118

682

1,750

1,470

1,260

1,250

1,220

515

0

1,250

1,290

1,210

1,190

1,190

216

430

1,760

23,243

750

Nov.

1,770

1,770

1,770

1,790

893

49

1,110

1,120

1,120

1,100

1,080

217

0

1,110

1,080

1,230

1,650

1,180

1,060

245

1,160

1,120

1,130

202

1,080

881

208

1,100

1,070

1,070

30,365

1,012

Dec.

1,070

1,100

908

173

1,555

1,080

1,080

1,090

1,080

715

247

1,110

1.120

1,090

1,120

1,090

830

241

1,040

1,060

1,060

1,120

830

601

238

177

976

1,050

1,100

1,080

740

27,296

881

Jan.

173

205

1,090

1,090

1,080

1,110

482

368

1.150

998

1,070

1,090

1,090

540

O

1,080

1,100

1,140

1,090

899

375

28

1,060

1,080

1,060

1,070

1,070

512

0

1,070

875

25,045

808

Feb.

863

863

851

459

0

965

929

766

863

876

531

O

932

798

851

930

929

471

0

853

851

471

766

965

439

0

858

834

730

_ _ __ _

19,644

677

Mar.

599

537

0

O

687

610

699

578

532

O

0

539

491

538

561

929

T74

0

356

452

476

494

537

386

O

633

536

548

563

0

0

12,655

408

Apr.

0

0

593

498

576

532

0

0

613

711

943

954

989

922

278

984

l.OOO

1,140

1,230

1.400

1,240

502

1,260

1,260

1,070

1,290

1,100

1,190

454

1,350

24,079

803

May

1,720

1.760

1,490

1,480

1,450

764

1,350

1,460

1,460

1,450

1,120

394

294

601

519

544

478

490

373

133

445

236

237

263

264

228

0

482

464 ' 0

482

22,431

724

June

493

174

0

68

0

0

0

0

O

0

O

0

0

0

0

0

O

0

0

.0

0

O

0

0

0

O

0

0

0

0

735

24.5

July

0

O

0

0

O

0

0

O

0

0

O

0

0

0

0

0

O

0

O

0

0

0

0

O

0

O

0

0

0

0

O

0

O

Aug.

0

0

O

0

0

0

0

0

0

0

O

0

0

0

0

0

0

O

0

O

O

0

O

0

O

0

0

O

0

O

0

0

0

Sept.

0

O

0

0

O

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

Calendar year 1955: Max 2,9OO Min O Mean 545

Water year 1955-56: Max 1,790 Min 0 Mean 5O7
210 DELAWARE RIVER BASIN

Mongaup River near Mongaup, N. Y.

Location. Lat 41°27'40", long 74°45'25", on right bank 300 ft downstream from Rio plant 

of Orange and Rockland Utilities, Inc. (formerly Rockland Light and Power Co.), half 

a mile downstream from Palls Bush Kill, and 2f miles upstream from mouth and Mongaup, 

Sullivan County. Prior to July 6, 1956, two gages at sites 25 ft upstream from Rio 

Tailrace and 200 ft upstream on natural channel.

Drainage area.--202 sq mi.

Records available. August 1939 to September 1956.

Gage. Water-stage recorder. Datum of gage is 625.05 ft above mean sea level (datum of 

Orange and Rockland Utilities, Inc.). Prior to July 6, 1956, water-stage recorders at 

sites 25 ft upstream on Rio Tailrace and 200 ft upstream on natural channel at datum 

4.0 ft higher.

Average discharge. 17 years, 348 cfs (unadjusted).

Extremes. Maximum daily discharge during year, 9,420 cfs Oct. 16; minimum daily, 27 cfs

1939-56: Maximum daily discharge, 12,300 cfs Aug. 19, 1955; minimum daily, 6 cfs 

Oct. 1, 1939.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Plow in tailrace completely regulated by Rio powerplant. Flow in natural channel is 

runoff from area below Rockland Light & Power Co.'s Rio Dam, l| miles upstream, except 

during periods of spilling. Flow regulated by Toronto, Cliff Lake, and Swinging Bridge 

Reservoirs (see p. 276) and smaller reservoirs above station. Discharge figures given 

are those of combined flows in Rio tailrace and natural channel.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

43

27

469

384

455

683

936

966

961

903

629

685

746

948

3,100

*9,420

3,380

1,550

1,390

1,160

958

915

882

838

*739

263

284

271

603

774

1,110

36,472

1,177

-

-

Nov.

1.050

816

705

824

S21

721

659

500

574

706

755

605

351

669

787

802

880

894

857

748

737

696

686

530

640

576

426

601

622

538

20,776

693

-

-

Dec.

571

591

249

115

461

330

365

429

527

514

126

367

365

370

462

508

376

161

231

447

*441

407

261

388

!§

298

364

365

450

411

260

11,286

364

-

-

Jan.

103

176

476

438

404

150

132

208

350

464

484

491

449

379

60

422

402

*350

493

517

345

192

483

461

461

443

433

233

211

481

435

11,126

359

-

-

Feb.

42O

486

287

337

90

477

380

330

307

268

211

88

257

380

474

30S

380

352

315

373

347

333

*346

302

378

386

392

372

*376

9,752

336

-

-

Mar.

382

393

372

294

374

387

434

489

487

433

488

535

651

697

700

750

680

674

713

770

736

719

720

790

609

650

600

612

*705

627

18,080

583

-

-

Apr.

366

712

676

653

621

759

812

750

760

817

900

1,280

1,100

935

884

991

1,350

1,220

1,020

893

699

697

742

711

*760

794

8O4

630

595

907

24,838

828

-

-

May

1.510

1,050

1,320

1,100

872

732

851

756

763

728

700

489

729

455

540

592

535

*563

408

427

616

670

652

622

528

3O9

547

515

395

205

543

20,722

668

-

-

June

571

407

626

586

551

523

*526

698

344

541

572

566

611

593

634

249

59

201

*106

112

139

175

130

134

298

233

242

181

156

111

10,875

362

-

"

July

132

227

192

56

139

134

90

77

191

129

105

132

225

185

78

141

144

183

209

262

177

85

534

435

123

138

361

82

73

loo

*192

5,331

172

-

-

Aug.

141

194

109

74

63

92

78

69

106

104

77

68

64

62

65

84

a90

a!06

a76

a!02

68

73

64

71

58

52

64

90

86

78

74

2,602

83.9

-

"

Sept.

85

82

59

81

71

87

73

100

103

76

77

93

*102

73

85

72

80

62

86

78

65

61

73

88

69

94

*249

151

71

93

2,639

88.0

~

*

Calendar year 1955: Max 12,3OO Min 18 Mean 465 Cfam - In. -

Water year 1955-56 : Max 9,420 Min 27 Mean 477 Cfam - In. -

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of powerplant records.
DELAWARE RIVER BASIN 211

Delaware River at Port Jervis, N. Y.

Location.--Lat 41°22'20", long 74°41'50", on right bank 250 ft downstream from bridge on 

U. S. Highways 6 and 209 at Port Jervis, Orange County, if miles upstream from Neversink River, and 6.5 miles downstream from Mongaup River.

Drainage area.--3,076 sq mi.

Records available.--October 1904 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 415.35 ft above mean sea level, datum of 

1929. Prior to June 20, 1914, chain gage at highway bridge 250 ft upstream at same 

datum operated by U. S. Weather Bureau. June 20, 1914, to Aug. 13, 1928, staff or 

chain gages at highway bridge 250 ft upstream at present datum.

Extremes.--Maximum discharge during year, 70,200 cfs Oct. 16 (gage height, 12.57 ft); minimum, 720 cfs Sept. 9 (gage height, 1.67 ft); minimum daily, 954 cfs Sept. 9.

1904-56: Maximum discharge, 233,000 cfs Aug. 19, 1955 (gage height, 23.91 ft, from 

floodmark in gage house), from rating curve extended above 89,000 cfs on basis of 

slope-area determination of peak flow; minimum, 175 cfs Sept. 23, 1908 (gage height, 

0.6 ft); minimum daily, 175 cfs Sept. 23, 1908.

Maximum discharge previously known, 205,000 cfs Oct. 10, 1903 (gage height, 23.1 ft, 

reported by U. S. Weather Bureau), from rating curve extended above 70,000 cfs by logarithmic plotting and velocity-area studies; maximum stage known, S5.5 ft Mar. 8, 1904 

(ice jam).

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are good. Subsequent to September 1954, entire flow from 371 sq mi of 

drainage area, except during periods of release or spillage, diverted from Pepacton 

Reservoir (see p. 276) through Rondout Reservoir in Hudson River basin into Kensico 

Reservoir for municipal supply of city of New York. Plow regulated by Lake Wallenpaupack and by Toronto, Cliff Lake, and Swinging Bridge Reservoirs (see p. 275} and 

smaller reservoirs. Large diurnal fluctuations at medium and low flow caused by powerplants on tributary streams.

Revisions (water years). WSP 756: Drainage area. WSP 1031: 1905-36.

Elating tables, water- year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.4 

3.0 

4.0

Oct. 1 to Apr. 5

1,880

3,170

6,030

6.0

9.0

12.0

Apr1 . 6 to Sept. 30

15,400

36,300

63, 900

1.8 

2.4

865

1,840

3.0 

4.0

3,160

6,030

Note. Same as preceding 

table above 4.0 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

4,850

4,750

4,560

4,010

5.610

6,470 

23,400

15, 100

12,200

9,570

7,650

6,240

5,550

6,230

18,600

60.500

*42,800

27,300

18,900

14,700

11,800

9,520

7,760

7,240

*7,850

7,460 

6,280

5,550

4,940

10,600

31,400

407,390

13,140

-

"

Nov.

20.400

14,600

12,000

12,800

11,900

9,220 

8,900

8,510

7,430

7,420

7,650

7,460

7,020

8,330

10,300

13,100

18,600

14,300

11,800

9,950

9,090

8,200

7,310

6,290

6,360

5,980 

5,140

5,180

5,250

4.950

285,440

9,515

-

-

Dec.

4,700

*4,590

4,180

3,980

5,220

5.760 

5,040

4,600

4,780

4,410

3,540

*3,890

4,130

3,880

3,790

3,770

3,370

2,860

b2.250

b2,600

b2,800

b3,000

b3,200

3,460

3,280

b2,700 

b2,700

b3,200

b3,300

b3,200

b2,900

115,080

3,712

-

-

Jan.

b2,450

b2.000

b2,250

b2,900

b2,900

b2,700 

b2,700

b2,050

*b2,600

b3,600

b4,200

6,040

7.880

6,710

4,990

*4,830

5,230

4,780

4,570

4,160

3,390

3,140

3,340

3,910

3,660

3,290 

3,240

3,040

2,630

*2,800

3,580

115,560

3,728

-

-

Feb.

3,780

3,510

3,190

2,860

2.500

2,510 

3,640

3,600

3,610

3,840

3,880

4,180

5,660

5,600

5,100

*5,390

5,360

5,090

6,140

6,500

6,010

5,020

4,460

3,970

4,270

9,490 

11.600

9,700

7,700

148,160

5,109

-

-

Mar.

*6,350

5,980

7,030

8,940

9,130

10, 100 

14,400

25,800

50.700

19,800

15,100

13,900

12,900

11,100

*10,200

8,950

7,490

6,320

6,560

6,200

5,990

5,980

5,790

5,700

4,990

4,990 

5,340

5,100

*5,310

4,900

4.720

295,760

9,541

-

"

Apr.

4.540

5,890

7,310

12,700

30,700

59.100 

34,500

31,700

22,300

19,300

19,500

*19,100

18,100

16,400

14,700

18,000

31,800

27,900

21,300

17,100

13,800

12,300

14,300

16,200

14,200

*13,300 

13,700

12,500

15,400

26,000

563,640

18,790

-

-

May

25.300

17,600

17,300

14,800

12,400

10,200 

12,000

11,100

9,290

*8,400

7,800

6,740

6,140

6,410

5,980

6,280

5,890

*5,980

6,080

5,430

5,710

5,160

4,830

4,570

4,300

3,850 

5.750

4,980

4,970

4,000

*4,310

249,550

8,050

-

"

June

6,850

8,120

16.100

15,100

11,100

8,720 

7,260

6,270

5,140

4,950

5,270

4,900

4,350

4,150

3,810

2,990

2,360

2,290

*2,030

*1,840

1,860

2,160

2,190

2,470

2,670

2,090 

1,730

1,800

1,560

1,480

143,610

4,787

-

-

July

1,620

1,680

1,730

1,630

1,900

3,370 

3.920

2,690

2,400

2,000

al,710

al,730

*1,800

2,090

2,150

1,980

1,700

1,610

1,620

1,680

1,970

2,340

2,840

2,510

1,970

2,030 

2,340

1,740

1.500

1,540

*1,660

63,450

2,047

-

"

Aug.

*1,590

1.650

1,480

1,380

1,350

1,380 

1,400

*1,390

1,390

1,350

1,270

1,210

*1,230

1,280

1,350

1,330

1,310

1,280

1,230

1,230

1,300

1,250

1,180

1,130

1,090

1.080 

1,100

1,140

1,230

1,280

1,340

40,180

1,296

-

-

Sept.

1,700

2,060

1,980

1,660

1,440

1,580 

1,570

1,450

954

1,270"

1,220

*1,220

*1,200

1,120

1,140

1,240

2,190

3,460

3,180

2,270

3,530

3,140

2,300

2,570

7.050

4,830 

3,650

2,980

2,590

2,380

68,924

2,297

-

-

Calendar year 1955 : Max 163,000 Min 673 Mean 6,183 Cfsm - In. -

Water year 1955-56 : Max 60,500 Min 954 Mean 6,822 Cfsm - In. -

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on records

for other stations In the basin.

b Stage-discharge relation affected by ice.
212 DELAWARE RIVER BASIN

Neversink River near Claryvllle, N. Y.

Location. Lat 41°53'25", long 74"35'30", on left bank 50 ft downstream from covered highway bridge 300 ft upstream from small tributary, 2 miles downstream from confluence of 

East and West Branches, and 3 miles southwest of Claryvllle, Sullivan County.

Drainage area. 65.6 sq ml.

Records available.--July 1951 to September 1956.

Gage.--Water-stage recorder. Datum of gage Is 1,488.77 ft above mean sea level, datum of

Average discharge .--5 years, 206 cfs.

Extremes. Maximum discharge during year, 9,950 cfs Oct. 15 (gage height, 7.50 ft), from 

rating curve extended above 4,000 cfs by logarithmic plotting; minimum, 21 cfs Aug. 18, 

28 (gage height, 0.45 ft).

1951-56: Maximum discharge, 10,200 cfs July 10, 1952 (gage height, 7.83 ft), from 

rating curve extended above 2,000 cfs by logarithmic plotting; minimum, 9.4 cfs 

Sept. 1, 2, 1953; minimum gage height, that of Aug. 18, 28, 1956.

Maximum discharge known, 23,400 cfs Nov. 25, 1950, by slope-area determination, at 

site lj miles downstream.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

235

166

140

125

116

509

698

475

342

273

227

2O4

183

430

5,010

2,890

1,200

679

490

*394

337

290

258

*250

262

215

192

171

160

1,190 

891

19,002

613

9.34

10.77

Nov.

*485

380

338

537

389

337

311

328

282

258

270

278

295

389

332

442

466

358

320

278

258

238

219

238

200

182

168

*155

140 

155

9,006

300

4.57

5.11

Dec.

130

125

125

166

178

140

120

120

116

110

106

»102

98

98

94

82

82

80

76

58

62

72

86

92

112

90

70

58

64

64 

58

3,024

97.5

1.49

1.71

Jan.

60

54

62

60

58

52

54

46

70

154

154

*163

172

114

104

100

94

86

82

88

80

82

*80

70

*66

62

62

58

60 

72

64

2,583

83.3

1.27

1.46

Feb.

58

62

62

49

56

52

58

52

52

58

58

72

62

*56

60

64

58

62

58

56

54

45

49

47

110

230

130

98

86

2,014

69.4

1.06

1.14

Mar.

80

90

94

98

92

104

*203

301

*254

194

195

229

194

188

165

150

150

140

135

130

125

135

129

124

118

120

115

112

112 

110

4,494

145

2.21

2.55

Apr.

106

114

249

*431

747

*783

942

645

459

*409

390

419

434

424

553

1,820

1,170

708

*554

459

434

587

538

409

385

390

399

1,020

2,070

1,720

19,768

659

10.0

11.21

May

890

744

878

744

6O9

538

506

404

*357

380

348

338

334

335

348

289

251

264

243

228

205

191

185

168

159

151

202

*202

165

157 

154

10,967

354

5.40

6.22

June

202

202

450

329

268

228

205

188

172

165

159

143

137

123

113

109

145

109

*96

90

92

90

84

86

75

70

77

73

64

61

4,405

147

2.24

2.50

July

58

54

52

47

119

*138

98

73

66

58

*52

48

61

133

79

61

54

48

46

47

92

101

81

70

61

56

50

47

42 

40

*40

2,072

66.8

1.02

1.17

Aug.

40

39

37

36

34

38

51

37

*32

30

28

28

33

49

34

30

27

30

49

38

33

30

27

27

26

23

22

*23

26 

31

54

1,042

33.6

0.512

0.59

Sept.

58

121

71

45

a38

a42

a47

a35

a28

27

*26

26

26

25

26

138

132

128

82

163

116

90

83

187

121

98

88

*86

90 

82

2,325

77.5

1.18

1.32

Calendar year 1955: Max 5,010 Min 13 Mean 229 Cfsm 3.49 In. 47.31

Water year 1955-56: Max 5,010 Min 22 Mean 220 Cfsm 3.35 In. 45.75

Peak discharge (base. 3,000 cfs). --Oct. 15 (7:15 p.m.) 9,950 cfs (7.50 ft); Apr. 28 (11:45 p.m.)

3,200 cfs (4.65 ft) .

* Discharge measurement made on this day .

a No gage-height record; discharge estimated on basis of records for other stations in the basin.

Note . --Stage-discharge relation affected by ice Nov. 28 to Dec. 3, Dec. 7 to Jan. 9, Jan. 14 to

Mar. 5, Mar. 15-22, 24-26, 28, 29, Apr. I, 2.
DELAWARE RIVER BASIN 313

Neversink River at Neverslnk, N. Y.

Location.--Lat 41°49'10", long 74°38'15", on right bank 1,650 ft downstream from Neverslnk 

Reservoir, at downstream end of outlet channel, and 1 mile downstream from Neversink, 

Sullivan County.

Drainage area.--91.9 sq mi.

Records available.--October 1941 to September 1956.

_. Water-stage recorder and concrete control. Datum of gage is 1,255.24 ft above mean 

sea level, datum of Board of Water Supply, City of New York. Prior to Jan. 17, 1953, 

water-stage recorder at site 650 ft downstream at different datum. Jan. 17, 1953, to 

Apr. 16, 1954, water-stage recorder at present site at datum 0.41 ft higher.

Extremes.--Maximum discharge during year, 3,780 cfs Apr. 30 (gage height, 6.17 ft); minimum, 0.1 cfs Mar. 29 (gage height, 1.705 ft).

1941-56: Maximum discharge, 22,300 cfs Nov. 25, 1950, from rating curve extended 

above 2,600 cfs on basis of contracted-opening and critical-depth determinations of 

peak flow; maximum gage height, 11.65 ft Sept. 27, 1942 (site and datum then in use); 

no flow for all or part of each day Sept. 22-24, Oct. 26-29, 1954.

Remarks.--Records excellent. Subsequent to June 1953, entire flow from 91.8 sq mi of 

drainage area, except during periods of release or spillage, diverted from Neversink 

Reservoir (see p. 277) through Rondout Reservoir in Hudson River basin into Kensico 

Reservoir for municipal supply of city of Mew York.

Rating tables, water year 1955-56 (gage height. In feet, and discharge, In cubic 

feet per second)

Oct. 16 to Apr. 29 Apr. 30 to Sept. 30

2.34

2.4

2.6

2.8

3.0

3.2

5.0 

5.5

84

190

362

845

1,740

3,140

2.37

2.4

2.6

2.8

3.0

3.2

4.2 

4.6

3.4

5.0 

6.0

84

190

362

845

1,620

3,460

2.9

3.1 

3.3 

3.5 

3.7

17

32

60

111

190

4.0 362

4.4 723

5.0 1,620

6.0 3,460

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

24

24

24

23

22

23

18

19

20

20

20

20

20

15

5.8

1, 970

*L,430

744

466

294

218

213

182

97

114

121

59

116

147

912

1, 280

8,658.8

279

-

-

Nov.

492

257

186

338

349

339

236

193

112

70

90

150

257

323

229

271

444

191

221

258

219

50

27

116

79

48

49

71

123

151

5,939

198

-

-

Dec.

130

126

126

126

103

126

126

80

45

45

45

27

13

13

13

12

T3

13

*13

12

13

14

14

14

14

14

14

13

14

112

280

1,723

55.6

-

-

Jan.

280 28~0"

104

13

13

13

13

13

14

13

13

13

13

13

13

15

13

13

13

13

13

13

14

13

*14

14

14

14

14

15

14

1,040

33.5

-

-

Feb.

14

14

14

14

14

15

13

13

13

13

13

14

14

14

13

12

13

13

13

14

13

13

12

13

14

13

14

12

12

386

13.3

-

-

Mar.

12

13

13

13

14

14

13

12

9.6

9.9

11

9.0

9.2

8.9

9.0

9.0

8.9

10

8.5

8.3

8.3

8.5

8.5

8.3

9.3

7.6

5.9

4.2

9TO

8.9

308.8

9.96

-

-

Apr.

9.0

9.3

9.4

9.7

9.4

15

19

19

18

17

19

18

18

19

20

18

18

19

19

19

19

21

19

19

19

19

19

1,690

*2,880

5,038.8

168

-

-

May

*1,540

907

971

853

680

615

507

350

258

271

224

303

395

293

264

186

93

75

194

251

198

116

75

55

53

51

53

87

*60

60

60

9,898

319

-

-

June

60SB283

322

T59

102

93

76

74

106

120

80

95

108

107

105

107

103

108

121

171

220

231

251

251

251

251

211

188

268

4,682

156

-

-

July

268

277

291

291

291

202

45

36

35

85

212

251

260

187

44

44

75

152

221

291

291

202

42

72

129

181

234

203

257

257

269

5,695

184

-

-

Aug.

291

*291

297

297

297

297

304

310

*307

*307

307

307

298

254

310

310

310

229

330

330

326

323

320

316

316

316

316

313

310

310

310

9,459

305

-

"

Sept.

307 22~B~

99

237

304

205

199

304

300

300

*241

297

*297

297

297

297

297

118

24

24

24

24

24

22

11

21

21

*21

21

21

4,884

163

-

-

Calendar year 1955: Max 1,970 Mln 3.8 Mean 82.5 Cfsm - In. -

Water year 1955-56: Max 2,880 Mln 3.8 Mean 158 Cfsm - In. -

Discharge measurement made on this day.

505690 O - 59 - 15
214 DELAWARE RIVER BASIN 

Neversink River at Woodbourne, N. Y.

Prior

Location. Lat 41°45'25", long 74°35'55", on left bank a quarter of a mile downstream from 

highway bridge at Woodbourne, Sullivan County.

Drainage area. 113 sq ml.

Records available. October 1937 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 1,180 ft (from topographic map). 

Hfo Sept. 20, 1938, staff gage at same site and datum.

Extremes . Maximum discharge during year, 4.060 cfs Apr. 30 (gage height, 6.27 ft); minimum, 23 cfs Jan. 4 (gage height, 1.19 ft).

1937-56: Maximum discharge, 22,000 cfs Nov. 26, 1950 (gage height, 11.19 ft), from 

rating curve extended above 9,100 cfs by logarithmic plotting; maximum gage height, 

11.2 ft July 22, 1938, from floodmarks and graph based on gage readings; minimum discharge, 6.7 cfs June 27, 1953; minimum gage height, 0.795 ft Aug. 25, 27, 28, 1949.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Subsequent to June 1953, entire flow from 91.8 sq mi of drainage area, 

except during periods of releases or spillage, diverted from Neversink Reservoir 

(see p. 277) through Rondout Reservoir in Hudson River basin into Kensico Reservoir 

for municipal supply of city of New York.

1.5

1.6 

2.0 

2.5 

3.0

Rating tables, water year 1955-56, except periods of ice effect (gage height, 

In feet, and discharge, in cubic feet per second)

168

349

599

4.0 

5.0

6.0

Oct. 17 to Apr. 29 Apr. 30 to Sept. 30

1,290

2,300

3,650

1.2 

1.4 

1.7 

2.0

92

168

1.3 

1.6 

2.0 

2.5

Note. Same as 

preceding table 

above 2.0 ft.

175

360

3.0 

4.0 

5.0 

6.0

620

1,350

2,300

3,650

Discharge, in cubic feet per second, water year October 19!55 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

63

49

42

38

35

389

232

163

107

74

67

58

58

76

1,710

2,790

*1,940

1,050

700

453

336

307

270

*172

209

191

128

156

214

1,290

1,660

15,032

485

+560

Nov.

734

42?

297

a549

a522

a490

a384

a320

a224

al78

a217

a259

a371

a 440

a375

a402

a651

374

351

412

387

151

91

181

191

98

90

138

165

211

9,675

322

+141

Dec.

184

181

181

206

*177

187

184

138

79

77

74

65

41

*40

37

37

38

38

38

34

31

34

38

40

45

37

35

32

33

100

500

2,761

89.1

+G3.2

Jan.

310

300

195

34

31

29

29

27

38

74

65

*60

68

47

43

41

37

35

33

36

31

32

31

29

*29

28

28

27

28

37

34

1,8G6

60.?

+81. e

Feb.

29

30

29

27

30

28

32

34

36

37

40

58

44

36

45

40

33

44

48

42

36

32

30

30

64

~62~ 160

50

45

1,251

43.1

+99.5

Mar.

41

47

58

76

*68

107

159

215

135

94

88

86

68

64

*60

54

52

50

49

45

44

45

44

47

42

41

43

42

38

43

47

2,092

67.5

+205

Apr.

60

T6

146

*165

372

292

380

205

170

191

186

178

162

145

172

316

206

145

*116

99

88

105

126

126

107

116

119

112

1,600

*3jL190

9,471

316

+791

May

*1, 500

1,080

1,130

982

786

713

632

435

*317

330

273

342

460

360

340

219

165

129

226

285

243

160

113

91

*83

81

114

145

99

95

95

1?,023

388

+129

June

185

161

388

437

*231

150

134

110

106

127

160

106

115

130

127

124

124

a!20

a!22

130

178

240

249

273

270

270

277

245

183

281

5,753

192

+19.2

July

281

289

305

305

334

309

83

62

54

73

*210

262

273

244

68

60

75

153

219

305

338

267

81

83

150

179

259

205

266

2G6

*277

6,335

204

-94.3

Aug.

309

309

309

305

305

305

313

»321

321

321

317

317

315

270

317

317

313

236

334

334

334

334

330

330

326

326

*321

321

321

321

330

9,782

316

-254

Sept.

273- 321

93

213

305

262

167

305

305

305

*250

301

301

297

297

317

317

179

42

46

37

33

35

71

37

*31

31

36

33

30

5,270

176

-56.8

Calendar year 1955: Max 2,790 Min 14 Mean 143

Water year 1955-56: Max 3,190 Min 27 Mean 222

* Discharge measurement made on this day.

t Change in contents in, and diversion from, Heversink Reservoir (equivalent in cubic feet per 

second) furnished by Board of Water Supply, City of New York. Equivalent diversion and change in 

contents during calendar year 1955, +209 cfs; during water year 1956, +140 cfs.

a No gage-height record; discharge estimatfd from reconstructed gage-height graph based on records 

for Neversink River at Neversink.

llot£.--Stage-discharge relation affected by ice Dec. 11, 14-17, Dec. 20 to Jan. 2, Jan. 5-10, 

13-15, Jan, 17 to Mar. 5, Mar. 8-10, 14-22, 25, ?6, ?8, 29, Apr. Z, 8, 9.
DELAWARE RIVER BASIN 215

Neversink River at Oakland Valley, N. Y.

Location. Lat 41°29'45", long 74°38'45", on right bank 250 ft downstream from highway 

bridge known as Paradise Bridge, three-quarters of a mile downstream from Oakland 

Valley, 'Sullivan County, and Bush Kill Creek, and 3? miles northwest of Cuddebackville.

Drainage area. 222 sq mi.

Records available. July 1928 to September 1956.

Gage. Water-stage recorder. Datum of gage is 632.00 ft above mean sea level, adjustment 

of 1912. Prior to Nov. 8, 1928, staff gage at same site and datum.

Extremes.--Maximum discharge during year, 14,300 cfs Oct. 15 (gage height, 10.16 ft); minimum, 84 cfs Sept. 23 (gage height, 1.63 ft).

1928-56: Maximum discharge, 23,800 cfs Aug. 19, 1955 (gage height, 12.74 ft), from 

rating curve extended above 7,800 cfs on basis of slope-area determination at gage 

height 12.62 ft; minimum, 30 cfs Sept. 28, 29, 30, Oct. 1, 1941, Aug. 28, 1949, Oct. 12, 

1953; minimum gage height, 1.245 ft Oct. 12, 1953.

Remarks. Records good except those for periods of ice effect, which are fair. Subsequent 

to June 1953, entire flow from 91.8 sq mi of drainage area, except during periods of 

release or spillage, diverted from Neversink Reservoir (see p. 277) through Rondout 

Reservoir in Hudson River basin into Kensico Reservoir for municipal supply of city of 

New York.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 3O May 1 to Sept. 3O

2.0 

2.5

81

172

352

612

953

4.0 

5.0 

6.0 

8.0 

9.0

1,360 

2,420 

3,800 

7,73O 

10,500

78

172

1.6 

2.0

Note. Same as 

preceding table 

above 2.0 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

321 

240

192

178

158

1,120

1,890

1,200

874

618

478

408

352

791

6,690

8,070

4,606

2,540

1,730

1,220

953

793

739

624

631

554

499

384

473

1,700

3,010

44,030

1,420

-

-

Nov.

1.520 

1,010

773

1,130

1,O1O

916

8O7

680

589

478

562

631

753

1,020

953

1,210

1,510

1,090

814

857

787

574

418

432

532

361

357

360

330

IBtJ

22,924

764

_

-

Dec.

420 

393

389

427

*468

37O

357

343

245

230

230

200

150

*125

140

125

112

116

112

100

94

ITS

130

140

160

140

12O

110

100

94

130

6,380

206

_

-

Jan.

340 

355

270

210

122

104

98

88

12U

200

260

260

2 SO

220

180

170

160

135

130

140

130

130

125

110

106

104

*100

96

100

106

125

5.O49

163

_

-

Feb.

100 

108

1OS

96

1(38"

106

120

130

135

140

155

220

258

180

192

*2O4

180

205

24O

217

190

16O

145

140

205

S9"0~ 540

280

240

5,492

189

_

-

Mar.

?2"0" 210 

260

350

340

450

7OO

980 9~4T

649

595

589

483

418

*380

3 2O

330

320

3OO

280

260

250

260

250

235

230

230

230

235

225

244

11,765

38O

.

-

Apr.

335" 251

5OO

656

1,250

1,510

1,900

1,440

1,110

1,110

1,140

1,110

1,080

931

938

1,670

1,54O

1,01O

773

624

532

560

657

759

680

631

662

618

1,850

4.66O

32,502

1,O83

_

-

May

2,600 

1,800

1,920

1,620

1,290

1,150

1,230

931

713

*655

624

566

753

706

857

595

538

447

499

543

510

398

305

269

237

217

267

380

297

244

237

23,398

755

_

-

June

374 

356

770

867

52lf

380

313

247

2 2O

223

273

214

207

2O4

198

186

186

181

169

*T?§

214

311

3O9

343

326

318

355

348

236

29O

9,313

310

_

-

July

318 

318

330

335

456

640

367

198

198

153

196

3O1

335

4O8

241

145

125

na *204

321

485

516

251

*161

176

207

294

249

280

297

293

8,941

288

_

-

Aug.

318 

*326

326

322

318

33O

343

343

339

330

326

326

330

320

288

322

322

310

267

335

357

348

335

335

350

330

*326

326

335

330

361

10,154

328

-

-

Sept.

348 

352

183

154

304

365

197

314

33O

330

315

296

*326

326

326

370

403

39T

138

111

107

8890"

156

158

*109

92

92

107

102

6,980

233

.

-

Calendar year 1955 : Max ll.OOO Mln 66 Mean 428 Cfsm - In. -

Water year 1955-56 : Max 8,070 Mln 88 Mean 511 Cfsm - In. -

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 28 to Dec. 1, Dec. 6, Dec. 9 to Feb. 12, 

Feb. 14, 17, 18, Feb. 21 to Mar. 8, Mar. 15-3O, Apr. 2, 3.
216 DELAWARE RIVER BASIN

Neversink River at Godeffroy, N. Y.

Location. Lat 41°26'30", long 74 0 36 I 10", on right bank Just upstream from highway bridge, 

half a mile downstream from Basher Kill, three-quarters of a mile southeast of Godeffroy, Orange County, 2 miles south of Cuddebackville, and 8^ miles upstream from mouth.

Drainage area.--302 sq mi.

Records available.--August to October 1903, August 1909 to April 1914 (gage heights and 

discharge measurements, also twice-daily figures of discharge for January 1911 to December 1912), and July 1937 to September 1956 in reports of Geological Survey. August 

to October 1903 and August 1909 to December 1913 in reports of State engineer and 

surveyor. August to October 1903 published as Navesink River at Godeffroy.

Gage. Water-stage recorder. Datum of gage is 459.66 ft above mean sea level (levels by 

Corps of Engineers). August to October 1903 staff gage at datum 1.02 ft lower. 

Aug. 22, 1909, to Jan. 21, 1910, staff gage and Aug. 1, 1910, to Apr. 30, 1914, chain 

gage, at datum 2.00 ft lower.

Extremes. Maximum discharge during year, 18,300 cfs Oct. 15 (gage height, 10.96 ft); minimum, 113 cfs Dec. 30 (gage height, 3.07 ft).

1903, 1909-14, 1937-56: Maximum discharge, 33,000 cfs Aug. 19, 1955 (gage height, 

12.49 ft), from rating curve extended above 11,000 cfs on basis of slope-area determination of peak flow; practically no flow July 21, 1911 (gage height, -0.3 ft, present 

datum).

Remarks. Records excellent except those for periods of ice effect, which are good. Subsequent to June 1953, entire flow from 91.8 sq mi of drainage area, except during 

periods of release or spilling, diverted from Neversink Reservoir (see p. 277) through 

Rondout Reservoir in Hudson River basin into Kenslco River for municipal supply of city 

of New York. Prior to 1949, diurnal fluctuations at low and medium flow caused by 

powerplant at Cuddebackville.

Revisions. WSP 821: Drainage area.

Rating tables water year 1955-56, except periods of ice effecb (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1-15 

23O 5.O 

527 6.0 

895

1,4OO 

2,700

Note. Same as followIng table above 6.O ft.

Oct. 16 to Jan. SO 

12O 6. 

239 7. 

484 8. 

870 9. 

1,390 10.

Jan. 31 to Sept. 3O

2,700

4,440

6,840

9,920

13,500

3.1 

3.6 

4.2 

5.0 

6.0 

7.0 

8.0

124

294

636

1,390

2,700

4,440

6,840

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

4O5 

330

276

255

250

1,160

2,340

1,700

1,430

1,120

878

739

631

933

7,400

11,8OO 

*7,160

4,360

3,120

2,290

1,760

1,420

1,260

1,040

*965

852

763

6O6

658

1,740

3,390

63,011

2,033

-

-

Nov.

2.050 

17500

1,200

1,510

1,450

1,310

1,170

1,000

88O

738

843

*927

1,040

1.57O

1,55O

1,650 

2,000

1,610

1,270

1,270

1,150

890

674

635

738

565

523

516

470

580

52,817

1,O94

-

-

Dec.

540 

*504

490

576

674

520

470

460

376

340

310

*300

260

220

245

210 

200

205

20O

170

160

170

185

190

205

195

165

155

145

140

160

9.14O

295

-

-

Jan.

590

350

440

336

182

151

142

125

*145

270

409

598

449

3To

504

*282 

258

2O4

195

210

190

190

182

162

155

155

150

150

150

*167

2OO

7,461

241

-

-

Feb.

160 

170

171

ISO" ISO

16O

194

218

222

233

26O

365

417

540

550

*555 

320

350

453

412

560

510

270

250

530

59~8" 655

491

390

9,092

314

-

-

Mar.

340 

560

460

595

567

732

,04O

,450

.470

,140

,O40

,O10

853

760

*696

560 

5OO

520

480

440

420

420

444

462

580

400

400

400

410

4O6

422

19,577

652

-

-

Apr.

459

555

720

96O

1,560

2,010

2,450

2,150

1,740

1,730

1,750

*1,720

1,640

1,460

1,410

2,O8O 

2,090

1,550

1,250

1,05O

87O

836

955

1,O80

992

955

963

888

1.96O

4.950

44,686

1,490

-

-

May

3.140 

2,320

2,460

2,150

1,780

1,57O

1,640

1,320

1,050

944

898

784

953

898

1,O7O

792 

719

602

644

688

651

529

455

395

545

517

554

468

*406

535

322

50,977

999

-

-

June

429 

428

849

992

647

485

417

345

308

505

340

291

275

26O

252

244

257

229

214

*211

252

545

550

390

570

555

595

401

299

317

11,225

574

-

-

July

56O

355

360

360

486

689

467

294

522

260

262

*360

*390

456

335

214 

185

187

244

338

505

574

536

229

223

256

335

306

508

326

522

1O, 644

543

-

-

Aug.

*34O 

350

340

535

331

350

37O

*565

555

345

34O

340

350

550

297

54O 

335

331

274 55b"

380

370

355

355

345

540

*540

54O

545

335

370

10,665

344

-

-

Sept.

555 

365

240

162

293

387

292

325

370

365

36O

*521

560

555

360

412 

450

456

219

168

165

145

140

196

214

*162

157

134 145-

147

8,198

275

-

-

Calendar year 1955: Max 15,900 Mln 92 Mean 626 Cfsm - In. -

Water year 1955-56: Max 11,800 Mln 125 Mean 704 Cfsm - In. -

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Nov. 29 to Dec. 1, Dec. 6-8, Dec. 1O to Jan. 5, 

Jan. 8, 9, 14, 19-22, 25-29, Jan. 51 to Feb. 2, Feb. 4-6, 14, 17, 18, 21-25, Feb. 29 to Mar. 5, 

Mar. 16-22, 25-29, Apr. 2, 3.
DELAWARE RIVER BASIN 217

Delaware River at Montague, N. J.

Location.--Lat 41°18'30", long 74°47'50", on right bank at downstream side of bridge at 

Montague, Sussex County, three-quarters of a mile downstream from Saw Kill.

Drainage area. 3,480 sq mi.

Records available.--March 1936 to February 1940 (gage heights only), February 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage is 369.93 ft above mean sea level, datum of 

1929. Prior to Feb. 9, 1940, wire-weight gage on upstream side of left span of bridge, 

at datura 70 ft lower.

Average discharge.--16 years, 5,622 cfs (unadjusted).

Extremes.--Maximum discharge during year, 80,800 cfs Oct. 16 (gage height, 19.68 ft); min- 

 imum, 1,140 cfs Sept. 9 (gage height, 4.62 ft); minimum daily, 1,380 cfs Aug. 26, 

Sept. 9.

1940-56: Maximum discharge, 250,000 cfs Aug. 19, 1955 (gage height, 35.15 ft), from 

rating curve extended above 90,000 cfs on basis of flood-routing study; minimum, 

382 cfs Aug. 24, 1954 (gage height, 3.83 ft); minimum daily, 412 cfs Aug. 23, 1954.

Maximum stage known, 35.5 ft Oct. 10, 1903 (present datum), from floodmark. Gage 

height of 28.45 ft (present datum) was observed Mar. 18, 1936 (discharge, 164,500 cfs, 

from present rating curve extended above 90,000 cfs).

Remarks. Records excellent except those for period of ice effect, which are good. Diurrial fluctuation at medium and low flow caused by powerplants on tributary streams. 

Flow regulated by Lake Wallenpaupack and by Toronto, Cliff Lake, Swinging Bridge, 

Neversink, and Pepacton Reservoirs (see p. 276). Diversion from Neversink Reservoir 

(see p. 280). Records of chemical analyses and water temperatures for the water year 

1956 are given in WSP 1450.

Rating tables, water year 1955-56, except period of loe effect (gage height, 

In feet, and discharge, In cubic feet per second)

6.0

8.0

10.0

14.0

19.0

3,950

9,700

17,600

39,000

75,000

Oct. 17 to Nov. 30

6.8 5,600

8.0 9,250

11.0 22,000

16.2 53,500

Dec. 1 to Sept. 30

4.8

6.0

8.0

10.0

14.5

1,380

3,790

9,270

17,000

42,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7 

8

9

10

11

1Z

13

14

15

16

17

18

19

ZO

Zl

ZZ

Z5

24

25

26

27

Z8

29

30

31

Total

Mean

Cfsm

In.

Oct.

5,580

5,520

5,070

4,610

4.110

6,500

26,700 

18,000

14,600

11,400

9,280

7,690

6,740

7,460

*25,400

72.600

52,800

55,600

25,500

17,800

14,100

11,400

9,420

8,540

9,070

8,740

7,580

6,600

6,050

10,900

35,200

486,560

15,690

-

-

Nov.

25 . 900

16 , 700

15,700

14,200

15,800

11,000

10,100 

9,810

8,780

8,480

8,840

8,880

8,590

*9,670

*12,000

14,600

22,100

16,600

15,500

11,700

10 , 400

9,460

8,480

7,500

7,550

6,960

6,140

5,780

6,140

5.750

------ -

350,710

11,020

-

-

Dec.

5,550

5,400

4,950

4,900

*5,660

6.590

5,810 

5,300

5,550

5,050

4,160

4,160

4,600

4,240

4,160

4,190

5,880

3,490

2.500

2,800

2,900

5,100

3,300

3,600

3,800

3,100

2,900

3,400

5,500

5,500

3,200

129,020

4,162

-

-

Jan.

5,000

2,500

2,600

5,500

5,200

5,000

2,900 

2.200

2,800

5,900

4,700

6,400

8.700

7,600

5,800

5,100

5,800

5,200

5,000

4,500

3,900

5,400

5,500

4,200

4,000

5,600

5,500

5,400

5,000

2,900

3,800

127,200

4,105

-

-

Feb.

4,000

5,800

5,500

5,200

2,900

2.500

5,900 

5,900

4,000

4,140

4,260

4,650

5,990

6,180

5,600

5,860

5,860

5,680

6,780

7,060

6,640

5,550

4,880

4,560

4,750

9,610

11.700

10,200

8,450

--- -

159,880

5,515

-

-

Mar.

*7,060

6,590

7,500

9,540

9,810

10,500

14,500 

26,400

55 . 100

21,800

16,400

14,700

15,700

11,800

10,900

9,540

8,460

7,120

7,180

7,060

*6,670

6,620

6,550

6,420

5,760

5,530

5,970

5,810

5,940

5,710

5.400

319,820

10,320

-

-

Apr.

5.220

*6,560

8,060

13,000

50,200

»41 . 900

56,700 

55,100

25,000

22,000

21,800

21,400

20,200

18,400

16,200

19,600

55,500

50,100

25,200

18,600

14,800

15,000

14,800

17,500

*15,200

15,900

*14,400

15,200

16,500

50, 400

610,240

20,540

-

-

May

27.200

20,500

20,000

*17,000

14,100

11,900

15,500 

12,500

10,600

9,540

8,880

7,880

7,520

7,470

7,240

7,290

6,870

6,700

6,950

6,520

6,480

5,920

5,450

5,120

4,780

4,510

4.190

5,300

*5,660

4,620

4,550

285,940

9,224

-

-

June

6,820

8,520

15,700

16.500

11,800

9,410

7,880 

6,870

5,750

5,550

*5,760

5,420

4,750

4,450

*4,090

5,450

2,640

2,480

*2,240

2,000

1,970

2,320

2,500

2,680

*5,040

2,500

2,040

2,180

1,840

1.680

154,590

5,146

-

-

July

1,870

1,950

*1,970

1,890

2,200

5,580

tfi

2,' 850

2,380

*2,040

2,140

2,140

2,640

2,600

*2,280

1,910

1.710

1,820

1,950

2,420

2,890

3,250

2,950

2,280

*2,280

*2,660

2,500

1,800

1,870

1,990

74,300

2,597

-

-

Aug.

1,970

1.990

1,860

1,750

1,710

1,750

1,780 

1,770

*1,750

1,680

1,620

1,550

1,570

1,620

1,620

1,660

1,640

1,590

1,460

1,590

1,680

1,600

*1,530

1,450

1,400

1.580

1,400

1,400

1,480

*1,550

1,620

50,340

1,624

-

-

Sept.

1,950

2,440

2,540

1,800

1,690

2,160

2,240

1,800

1.580

*1 , 600

1,600

1,550

1,590

1,550

1,520

1,660

2,440

5,860

5,720

*2,580

5,520

5,470

2,540

2,580

6.770

5,480

4,040

5,250

2,830

2,640

-- -

78,570

2,619

-

-

Calendar year 1955: Max 187,000 Mln 844 Mean 7,009 cfsm - In. -

Water year 1955-56: Max 72,600 Mln 1,580 Mean 7,669 Cfsm - In. -

Peak discharge (base, 54,000 cfs). Oct. 16 (5 to 4 D.m.) 80.800 cfs fl9.68 ft): Oct. 51 (11 a.m.)

58,900 cfs (13.98 ft); Mar. 9 (2 a.m.) 57,700 cfs (15.79 ft); Apr. 6 (8 a.m.) 44,900 cfs (14.98 ft);

Apr. 17 (6 p.m.) 57,000 cfs (15.67 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 19 to Feb. 8.
218 DELAWARE RIVER BASIN 

Bush Kill at Shoemakers, Pa.

Location. --Lat 41°05'15", long 75°02'20", on right bank 30 ft downstream from highway 

bridge , 0.1 mile downstream from Saw Creek, 0.7 mile northwest of Shoemakers, Monroe 

County, and 2 miles southwest of Bushkill. Prior to June 21, 1956, at site 50 ft upstream.

Drainage area. 117 sq mi.

Records available. October 1920 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. September 1908 to September 1915, October 1915 to September 1920 (gage heights and discharge measurements only), and October 1920 to September 1941 in reports of Pennsylvania Department of Forests and Waters. Prior to October 

1928, published as Bushkill Creek near Shoemakers; October 1928 to September 1952, published as Bushkill Creek at Shoemakers.

Gage. --Water-stage recorder. Datum of gage is 421.13 ft above mean sea level, unadjusted.

 Sept. 19, 1908, to Aug. 12, 1938, chain gage and Aug. 13, 1938, to June 20, 1956, waterstage recorder, at site 50 ft upstream at same datum.

Average discharge. 43 years (1908-15, 1920-56), 238 cfs.

Extremes . Maximum discharge during year, 3,680 cfs Oct. 16 (gage height, 5.96 ft); mini-

 mum daily, 33 cfs Jan. 28; minimum gage height, 1.21 ft Aug. 18, 27, 28, 30, 31.

1908-56: Maximum discharge, 23,400 cfs Aug. 19, 1955 (gage height, 13.95 ft, from 

floodmark), from rating curve extended above 2,600 cfs on basis of slope-area determination of peak flow; minimum observed, 4 cfs Sept. 21, 26, 1932.

Remarks . --Records good except those for periods of ice effect, which are fair.

Revisions (water years). WSP 756: Drainage area. WSP 1202: 1921, 1922-29(M), 1932(M),

 1933, 1935-36, 1938(M), 1939-40, 1942, 1945, 1946(M), 1948(M).

Rating table, water year 1955-56, except periods of ice effect (gage 

height, g, In In feet, ee, and an discharge, scarge, in n cuc cubic feet ee per per second) sec 

(Shifting-control method used July 6 to Sept. 30)

1.3

1.4 

1.6 

1.8 

2.0

67

113

174

2.5 

3.0 

4.0 

5.O 

5.8

368

623

1,360

2,410

3,470

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

Zl

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

219

19S

171

155

142

328

647

665

600

502

432

390

355

642

*2,120

3 , 4OO

2,470 

1,640

1,230

994

794

671

577

517

476

423

390

377

342

829

1,270

23,966

773

6.61

7.62

Nov.

994

807

715

774

653

561

507

497

456

423

512

486

437

447

466

816

*1,050 

863

754

677

600

544

492

461

418

382

351

338

309

280

17,050

568

4.85

5.42

Dec.

261

25S

238

253

257

238

212

201

194

185

170

155

140

120

125

125

120 

110

100

86

*72

70

74

90

110

115

105

86

72

76

74

4,487

145

1.24

1.43

Jan.

68

60

64

70

72

68

64

56

54

80

120

130

110

84

72

64

58 

54

52

52

50

47

44

*42

40

38

34

33

35

45 

52

1,912

61.7

0.527

0.61

Feb.

50

48

46

i|15

44

52

56

58

64

140

220

210

150

170

180

140 

270

350" 380

290

260

240

230

250

334

296

304

*264

5,183

179

1.53

1.65

Mar.

261

261

292

338

338

382

390

586

689

61?

583

583

512

486

451

413

355 

372

330

310

280

284

304

325

284

280

284

296

304

300

11,781

380

3.25

3.74

Apr.

309

377

*404

539

647

702

821

891

835

884

891

828

760

689

647

821

842 

709

617

544

476

447

502

534

451

427

432

404

521

iiOTO

19,021

634

5.42

6.05

May

754 sir

721

612

539

502

709

612

523

492

451

423

400

368

*355

334

296 

284

276

257

238

219

215

234

212

194

201

Z34

208

Jo? 161

11,873

383

3.27

3.77

June

184

242

712 659-

550

476

413

355

313

3O4

329

276

241

198

145

176

238 

198

168

148

152

158

130

133

142

113

*142

153

88

15.

7,609

254

2.17

2.42

July

6473"

84

82

144

219

184

155

235

3O4

226

191

168

300

245

194

164 

136

125

125

185

205

171

142

133

125

128

122

103

90 

82

4,904

158

1.35

1.56

Aug.

75

67

60

53

52

60

82

73

*64

60

55

52

52

53

52

47

44 

42

57

47

~9"9~ 101

71

58

50

46

42

40

44

4Z 

76

1,816

58.6

0.501

0.58

Sept.

96

82

71

58

49

184

433 m

171

136

113

103

93

86

82

106

122

110

96

»93

90

82

80

136

122

100

90

93

93

90

3,504

117

1.00

1.11

Calendar year 1955: Max 11,800 Min 6.8 Mean 321 Cfsm 2.74 In. 37.28

Water year 1955-56: Max 3,400 Mln 33 Mean 309 Cfsm 2.64 In. 35.96

Peak discharge (base. 1.100 efs).--0et. 16 (10 a.m.) 3,680 cfs (5.96 ft); Oct. 31 (l a.m.) 1,450 

cfs (4.08 ft); Nov. 16 (12 p.m.) 1,110 cfs (3.71 ft); Apr. 30 (2 p.m.) 1,270 cfs (3.92 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 10 to Feb. 25, Mar. 19-21.
DELAWARE RIVER BASIN 219

Plat Brook near Flatbrookville, N. J.

Location.--Lat 41°06'24", long 74 0 57'09", on right bank 1 mile upstream from Flatbrookville, Sussex County, and lj miles upstream from mouth.

Drainage area. 65.1 sq mi.

Records available. July 1923 to September 1956.

Gage. Water-stage recorder. Concrete control since Aug. 19, 1929. Datum of gage is 

347.73 ft above mean sea level, datum of 1929. Prior to Jan. 6, 1926, staff gage at 

same site and datum.

Average discharge.--33 years, 111 cfs.

Extremes. Maximum discharge during year not determined, occurred Oct. 16; minimum discharge, 17 cfs Aug. 30 (gage height, 1.90 ft).

1923-56: Maximum discharge, 9,560 cfs Aug. 19, 1955 (gage height, 12.58 ft, from 

high-water mark in gage house), from rating curve extended above 1,400 cfs on basis of 

slope-area determination of peak flow; minimum, 4 cfs Sept. 6, 7, 1923 (gage height, 

-L . 35 it),

Revisions.--The figures of maximum and minimum discharge for some water years have been 

revised, as shown in the following table. They supersede figures published in the 

water-supply papers indicated.

WSP

581

601

661

696

741

801

851

871

891

1141

1232

1272

Water 

year

1924

1925

1928

1930

1933

1936

1938

1939

1940

1949

1952

1953

Maximum

Date

Apr. 7, 1924

Feb. 11, 1925

Dec. 8, 1927

June 10, 1930

Aug. 24, 1933

Oct. 31, 1935

Sept. 22, 1938

Dec. 6, 1938

-

Dec. 31, 1948

Apr. 6, 1952

Jan. 25, 1953

Discharge 

(cfs)

3,040

3,040

2,000

595

1,500

2,640

2,980

2,400

-

2,900

3,170

2,700

Gage height 

(feet )

t7.1

7.10

5.86

3.68

5.17

6.66

7.03

6.37

-

6.94

7.24

6.72

Minimum

Date

.

-

_

-

_

Aug. 22, Sept. 13-15,

28-29, 1936

-

Sept. 25, 1939

Oct. 15, 1939

-

-

Discharge 

(cfs)

_

-

.

_

_

12

-

6.8

8.6

-

-

t Prom high-water mark.

Remarks. Records good except those for periods of no gage-height record, which are fair.

Revisions. WSP 781: Drainage area. Revised figures of discharge, in cubic feet per second, for some periods in the water years 1929, 1932, 1936, 1939-40, superseding those 

published in WSP 681, 726, 801, 871, and 891, are given herewith:

"Date

1929

Jan. 2

3

4

5

1932

Sept. 1

4

5

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

Discharge

60

50

50

5O

14

14

14

14

14

11

9.5

8.4

10

11

9.8

9.8

10

12

8.6

12

6.7

1O

7.3

7.4

11

6.2

Date

1932-Con.

Sept. 26

27

28

29

30

1936

Sept. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

17

18

19

20

21

22

23

Discharge

7.4

11

11

12

11

15

15

15

14

13

13

13

12

12

12

12

12

12

12

15

14

14

13

13

13

12

Date

1936-Con.

Sept. 24

25

26

27

28

29

1939

Sept. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Discharge

12

12

12

12

12

12

13

13

12

12

13

13

12

12

12

13

12

12

12

11

1O

10

9.8

8.6

8.6

8.6

Date

1939-Con.

Sept. 21

22

23

24

25

26

27

28

29

30

Oct. 7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

Discharge

9.2

9.8

9.2

8.6

8.6

S.O

8.6

9.8

11

11

13

12

12

11

10

9.8

9.8

9.8

9.8

9.8

9.2

9.2

9.8

9.8

1O

Month

Calendar year 1929. .......

Calendar year 1932 ........

Calendar year 1936. .......

Water year 1938-39. .......

Water year 1939-4O. .......

Cfs-days

_

_

-

_

-

397.5

44,316.2

43,909.4

38,086.3

Maximum

620

19.6

1,050

16.5

2,220

1,84O

701

1,360

Minimum

13

6.2

6.2

6.2

12

12

8 0

9 2

8 0

9 2

Mean

89.0

92.6

11.2

64.8

97.0

13.2

144

121

10.7

120

16.7

88.3

104

Per square 

mile

1.13

1.37

1.42

.172

.995

1.49

.203

2.21

1.86

.164

1.84

.257

1.36

1.60

Runoff In 

Inches

1.30

18.57

19.30

.19

13.55

20.28

.23

3O.O5

25.29

.18

25. 07

,29

18.50

21.75
220 DELAWARE RIVER BASIN 

Plat Brook near Flatbrookville, N. J. Continued

Rating table, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second) 

(Stage-discharge relation affected by Ice Dec. 21, Jan. 8, 26)

1.9

2.0 

2.2 

2.5

51

112

3.0 

4.0 

5.9

28O

770

2,030

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

65

54

45

41

38

98

244

257

253

162

126

105

90

210

*al,500

a2.000

972

550

383

292

241

202

178

162

159

*143

134

126

118

246

288

9,482

306

4.70

5.42

Nov.

205

168

149

188

168

146

134

143

129

120

259

223

174

205

227

*370

575

347

272

245

219

198

174

168

152

140

132

126

115

107

5,978

199

3.06

3.42

Dec.

~98 105

98

102

105

95

84

80

80

76

70

70

65

61

65

58

58

60

58

48

52

45

48

51

56

56

49

44

44

44 

j43

2,068

66.7

1.02

1.18

Jan.

43

39

43

41

41

41

40

37

39

96

105

102

112

80

70

65

61

54

52

51

48

48

47

40

42

40

38

36

37

53 

63

1,704

55.0

0.845

0.97

Feb.

47

48

51

45

50

54

107

149

161

134

145

230

205

152

a!45

a!45

a!30

a200

a280

a23j

a!80

138

126

106

130

178

140

140

116

3,962

137

2.10

2.26

Mar.

105

T23

159

178

165

171

178

249

312

219

191

195

168

168

162

149

137

129

123

123

115

120

129

146

126

126

a!25

a!20

a!35

146 

159

4,851

156

2.40

2.77

Apr.

159

205

212

322

424

410

392

396

347

401

414

383

316

260

227

308

304

234

205

185

168

159

188

209

171

171

168

152

247

583

8,320

277

4.25

4.75

May

360

280

356

280

230

205

334

264

219

212

191

174

168

149

146

129

118

118

115

112

1O2

93

88

88

80

95

82

95

80

72 

68

5,103

165

2.53

2.92

June

90

90

198

143

105

90

78

70

65

68

76

63

56

53

48

45

61

54

45

43

45

53

44

43

40

35

45

61

43

35

1,985

66.2

1.02

1.13

July

33

33

42

41

70

118

80

58

76

120

72

*56

110

329

2T6

126

98

76

63

58

80

86

68

56

50

45

47

45

41

36 

34

2,463

79.5

1.22

1.41

Aug.

33

32

30

30

32

33

43

34

28

25

23

22

22

25

24

23

22

21

22

21

51

45

30

25

22

21

20

20

19

18 

26

842

27.2

0.418

0.48

Sept.

32

30

86

40

29

58

223

84

54

44

41

41

43

35

34

50

58

47

37

35

34

30

28

73

61

44

36

43

44

38

1,532

51.1

0.785

0.88

Calendar year 1955: Max 6,310 Mln 6.8 Mean 133 Cfsm 2.04 In. 27.67

Water year 1955-56: Max 2,000 Mln 18 Mean 132 Cfsm 2.03 In. 27.59

Peak discharge (base, 650 cfsl. Oct. 16 (time and discharge unknown); Nov. 17 (2 a.m.) 734 cfs 

(3.94 ft); Apr. 30 (11 a.m.) 690 cfs (3.86 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Paullns Kill at Blalrstown 

and Pequest River at Huntsvllle.
DELAWARE RIVER BASIN 221

Brodhead Creek at Mlnislnk Hills, Pa.

Location.--Lat 40°59'55", long 75°08'35", on left bank 40 ft downstream from temporary 

bridge on State Highway 402 at Mlnislnk Hills, Monroe County, 500 ft upstream from 

Marshall Creek, 1,500 ft downstream from Coates Paper Box Co., 0.8 mile upstream from 

mouth, and 3 miles southeast of East Stroudsburg. Prior to Nov. 25, 1955, at site 

1,300 ft upstream, and Nov. 25, 1955, to July 24, 1956, at site 40 ft upstream.

Drainage area.--259 sq ml.

Records available. November 1950 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 301.84 ft above mean sea level, datum of 

T929. Prior to Aug. 19, 1955, water-stage recorder and Aug. 23 to Nov. 24, 1955, 

staff gages, at sites about 1,300 ft upstream at datum 2.19 ft higher. Nov. 25, 1955, 

to July 24, 1956, wire-weight gage at site 40 ft upstream at present datum.

Average discharge. 5 years (1951-56), 644 cfs.

Extremes. Maximum discharge during year. 7,640 cfs Oct. 16 (gage height, 8.74 ft, from 

floodmark, site and datum then In use), from rating curve extended above 4,600 cfs as 

explained below; minimum dally, 62 cfs Jan. 28.

1950-56: Maximum discharge, 68,800 cfs Aug. 19, 1955 (gage height, 29.9 ft, site 

and datum then In use, 27.0 ft, present site and datum, from floodmarks), from rating 

curve extended above 4,800 cfs on basis of computation of flow over dam at gage height 

14.43 ft, site and datum then In use, and slope-area determination at gage height 

29.9 ft, site and datum then In use; minimum, 32 cfs Oct. 18, 1954; minimum dally, 

41 cfs Aug. 5, 6, 1955.

Remarks. Records poor prior to Apr. 2, good thereafter. Diurnal fluctuation caused by 

powerplant and mill above station prior to Aug. 19, 1955.

Revisions (water years). WSP 1232: 1951(P).

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

480

430

380

340

510

720

1,390

1,600

1,400

1,100

940

860

780

1,500

*5,000

7 . 200

4,900

3,500

2,500

*1,560

1,380

1,210

980

920

860

800

770

710

665

1,620 

1,560

48,365

1,560

6.02

6.94

Nov.

1,290

1,130

1,050

1,100

1,000

860

770

760

720

700

800

780

680

700

740

1,200

1.470

*1,380

1,200

1,050

960

880

800

740

*675

575

550

550

475

475

26,060

869

3.36

3.74

Dec.

427

430

450

480

427

427

382

382

370

360

340

320

260

200

215

215

200

190

200

195

*185

170

175

195

210

225

205

185

165

175 

165

8,525

275

1.06

1.22

Jan.

150

130

140

155

160

155

140

125

120

160

210

240

220

160

135

120

110

100

94

94

92

88

82

*76

74

72

64

62

66

86 

98

3,778

122

0.471

0.54

Feb.

96

92

88

80

86

86

100

110

115

130

300

580

550

400

450

470

370

560

640

600

520

480

460

440

470

720

640

*650

600

10,883

375

1.45

1.56

Mar.

540

520

560

640

620

700

720

1,100

1.200

1,050

1,000

960

820

820

820

760

740

820

700

580

500

520

575

575

540

575

650

625

700

660 

640

22,230

717

2.77

3.19

Apr.

660

700

*760

940

1,080

1,010

1,460

1,730

*1,380

1,460

1,380

1,300

1,150

1,010

940

1,600

1,460

1,150

1,010

880

820

760

1,010

880

730

820

760

700

1,080

5.710

34,550

1,144

4.42

4.95

May

2.050

1,620

1,790

1,500

1,080

1,120

1,980

1,220

1,010

1,010

880

820

760

700

*625

600

525

550

525

500

450

404

404

427

560

339

360

427

560

518 

450

24,944

805

3.11

3.58

June

475

474

1.220

880

700

650

575

500

475

450

575

450

404

382

559

518

518

298

259

259

259

298

240

560

278

226

589

*582

259

219

12,911

450

1.66

1.85

July

205

208

278

250

558

675

475

582

710

675

475

404

500

1.120

700

575

475

404

539

382

946

748

550

500

452

400

404

369

331

294 

274

14,998

484

1.87

2.15

Aug.

259

244

226

212

212

236

286

235

*205

192

179

172

175

195

175

163

153

144

150

147

144

276

212

188

172

160

153

153

169

153 

222

6,160

199

0.768

0.88

Sept.

290

188

147

135

127

485

949

427

306

251

212

198

182

172

172

236

256

244

195

*205

202

185

179

515

267

222

198

212

212

205

7,552

252

0.973

1.08

Calendar year 1955 : Max 30,500 Min 41 Mean 715 Cfsm 2.76 In. 37.55

Water year 1955-56 : Max 7,200 Min 62 Mean 603 Cfsm 2.33 In. 31.66

Peak discharge (base, 4.300 cfs). Oct. 16 (10 a.m.) 7,640 cfs (8.74 ft); Apr. 30 (1 a.m.) 5,450 

cfs (7.59 ft).

* Discharge measurement made on this day.

Note. No gage-height record Oct. Z, 5, 5, 6, 8-14, 16-19, 23-26, 29, 50, Nov. 4-6, 8-16, 19-22, 24, 

Dec. 2, 4, 9-1L, 14, 15, 18, 22-26, Dec. 51 to Jan. 2, Jan. 4-25, 25-29, Feb. 3-6, 11, 12, 16-27, 

Feb. 29 to Mar. 12, Mar. 17, 19, 20, 22, 25, Mar. 30 to Apr. 1; discharge estimated on basis of 

weather records and records for station on Bush Kill at Shoemakers. Stage-discharge relation affpcted 

by ice Dec. 12, 13, 16, 17, 19-21, 29, 30, Jan. 3, Jan. 30 to Feb. 2, Feb. 7-10, 14, 15, and probably 

during most of period of no gage-height record in December, January, and February. Stage-discharge 

relation indeterminate Oct. 1, 4, 7, 15, 28; discharge estimated on basis of weather records and 

records for station on Bush Kill at Shoemakers .
222 DELAWARE RIVER BASIN

Paulins Kill at Blairstown, N. J.

Loc |H9.n-"^t 40°58'44" <lonf 74°57'15", on right bank 1,200 ft upstream from bridge on 

State Highway 94 in Blairstown, Warren County, 1,400 ft upstream from Blairs Creek 

and 10 miles upstream from mouth. '

Drainage area. 126 sq mi.

Records available. October 1921 to September 1956.

control * at site cn 280 ft downstream) ««* . 

datum of 1929.

« contro1 (Aug. 1, 1931, to Aug. 3, 1941, concrete 

Datum of gage is 335.86 ft above mean sea level,

present uacum. 

Average discharge. --35 years, 196 cfs.

Extremes. Maximum discharge during year, 3,740 cfs Oct. 16 (gage height, 7.76 ft); minimum, 8.8 cfs Jan. 8 (gage height, 1.33 ft); minimum daily, 40 cfs Jan. 8.

1921-56: Maximum discharge, 8,750 cfs Aug. 19, 1955 (gage height, 11.12 ft, from 

high-water mark In gage house); minimum, about 2.8 cfs Nov. 1, 1922; minimum daily 

5 cfs Aug. 13, 14, 1930. J

Remarks. Records excellent except those for periods of no gage-height record, which are 

good. Diurnal fluctuation caused by powerplant above station and flow regulated 

slightly by Swartswood Lake.

Revisions (water years). WSP 971: 1942. WSP 1382: 1952-53(M).

Rating table, water year 1355-56 (gage height. In feet, 

and discharge. In cubic feet per second)

1.6 

1.8 

2.0

39

82

143

3.0 

5.0 

7.2

598

1,510

3,150

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

151

133

113

104

96

197

500

468

468

351

286

235

207

438

2,230

5.100

2,350

1,740

1,210

866

666

536

457

586

366

325

297

265

250

355

520

19,646

654

5.05

5.80

Nov.

346

286

265

292

27O

235

221

230

221

*216

561

546

286

286

305

514

837

598

477

437

390

371

331

303

297

270

255

245

235 

225

9,949

332

2.63

2.94

Dec.

216

212

2O7

203

205

194

ISO

149

149

144

142

137

154

131

121

1O4

93

92

92

84

86

85

90

92

90

87

85

79

74 

49

46

5,846

124

0.984

1.14

Jan.

46

45

45

45

46

49

41

40

51

140

181

175

187

T54

15O

118

115

101

98

100

89

87

84

76

73

73

67

66

66 

96

147

2,829

91.3

O.725

0.84

Feb.

102

108

162

154

136

185

710

598

46S

377

555

499

408

298

277

284

239

434

734

499

375

282

255

212

261

551

265

255

225

9,486

527

2.60

2.80

Mar.

199

212

5O5

509

265

255

265

576

440

341

320

346

309

536

576

586

299

514

281

270

265

26O

281

331

286

281

331

366

581

571

395

9,750

515

2.50

2.88

Apr.

404

468

450

482

514

464

482

607

633

773

696

582

492

442

423

587

562

450

395

356

320

503

336

556

303

297

297

275

28T 

1.610

14,640

488

5.87

4.32

May

"8l7 1.220

820

644

523

460

658

544

425

409

366

336

331

292

281

260

230

225

221

225

199

181

181

177

158

143

151

170

151 

133

143

11,074

357

2.85

3.27

June

166

181

355

260

207

181

158

140

153

133

154

155

119

107

96

92

127

110

86

77

a80

88

81

81

82

72

IT?

132

98 

78

3,901

130

1.03

1.15

July

69

66

80

74

153

199

a!50

a!2o

asoo

al.500

982

*720

577

697

578

442

366

297

245

255

281

275

235

203

185

170

177

170

147

133

120

10,426

336

2.67

3.08

Aug.

110

105

95

86

84

95

125

109

91

81

75

7O

88

86

77

70

64

62

65

64

101

113

87

72

64

59

 56 55

60 

56

Tft / D

2,491

80.4

0.658

0.74

Sept.

81

98

120

95

80

109

199

140

107

86

75

69

65

60

68

100

104

1OO

86

78

70

66

61

86

91

78

68

75

78 

72

2,665

88.8

0.705

0.79

Calendar year 1955 : Max 5,950 Mln 8.0 Mean 246 Cfsm 1.95 In. 26.52

Water year 1955-56 : Max 3,100 Mln 40 Mean 275 Cfsm 2.18 In. 29.75

Peak discharge (base, 1,000 cfs). --Oct. 16 (9 a.m.) 3,740 ofs (7.76 ft)j Apr. 30 (12 m.) 2,040 cfs

. , . . 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

nearby stations.
DELAWARE RIVER BASIN 223

Pequest River at Huntsville, N. J.

Location. Lat 40°58'49", long 74°46'38", on right bank 20 ft upstream from highway bridge 

in Huntsville, Sussex County, and three-eighths of a mile downstream from East Branch.

Drainage area. 31.4 sq mi.

Records available. November 1939 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 553.81 ft above mean 

sea level, datum of 1929.

Average discharge. 17 years, 47.1 cfs.

Extremes. Maximum discharge during year, 438 cfs July 10 (gage height, 4.44 ft); minimum, 

7.7 cfs Jan. 8, result of freezeup.

1939-56: Maximum discharge, 560 cfs Aug. 19, 1955 (gage height, 5.05 ft); minimum, 

1.1 cfs Aug. 2, 1955 (gage height, 2.14 ft).

Remarks.--Records excellent except those for periods of ice effect or no gage-height 

record, which are good.

Revisions (water years). WSP 1332: 1945, 1949.

Rating table, water year 1955-56, except period of loe effect (gage 

height, In feet, and discharge. In cubic feet per second)

2.5

2.6 

2.8

3.0

3.5 

4.0 

4.4

198

335

430

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

41

37

31

34

40

52

*64

69

73

68

62

61

56

82

211

292

318 2"TC

231

192

166

153

142

134

122

108

99

93

86

86

91

3,572

115

3.66

4.23

Nov.

78

74

76

84

78

71

69

68

68

64

80

82

76

80

78

95

120

Tiff

102

99

95

91

86

82

78

74

73

71

66

£1

2,429

81.0

2.58

2.88

Dec.

59

56

56

59

59

56

52

49

48

45

40

39

35

34

34

31

29

29

28

b23

b24

25

25

25

25

25

22

22

20

TO

20

1,114

35.9

1.14

1.32

Jan.

18

18

18

18

18

18

18

16

24

41

43

52

53

43

35

32

a30

a33

a30

a28

a26

27

a26

a23

22

21

20

18

17

26

29

841

27.1

0.863

1.00

Feb.

24

25

44

37

35

44

108

102

102

87

82

89

86

80

76

73

68

89

T0~8 115

95

86

73

61

64

68

59

62

62

2,108

72.7

2.32

2.50

Mar.

58m

64

62

59

59

64

82

87

76

73

74

69

78

93

86

76

84

69

78

74

74

76

82

74

74

78

80

80

82

86

2,310

74.5

2.37

2.74

Apr.

86

87

87

93

95

93

102

127

134

145

142

132

122

113

108

132

130

113

106

97

89

84

87

87

78

78

78

73

71

1TO

3,089

103

3.28

3.66

Hay

108

97

108

104

93

87

113

115

91

91

91

82

76

69

66

66

58

56

59

58

52

48

49

52

45

43

49

49

43

37

40

2,195

70.8

2.25

2.60

June

68

68

86

74

62

*S8

49

44

40

45

53

49

41

35

31

31

30

27

24

22

22

24

22

22

22

20

5T

40

29

23

1,192

39.7

1.26

1.41

July

21

20

S3

22

40

49

41

34

254

426

330

260

230

251

217

192

156

130

115

104

110

108

95

86

80

78

78

73

66

58

53

3,800

123

3.92

4.50

Aug.

IB- 51

43

39

37

39

48

43

38

34

31

29

28

30

29

26

24

24

32

28

40

43

33

30

26

22

21

20

ST

21

30

1,006

32.5

1.04

1.19

Sept.

32

32

39

33

28

33

59

39

35

24

*22

20

20

18

25

29

28

26

23

22

22

20

18

22

22

20

18

20

20

20

784

26.1

0.831

0.93

Calendar year 1955: Max 481 Mln 1.6 Mean 50.1 Cfsm 1.60 In. 21.66

Water year 1955-56: Max 426 Mln 16 Mean 66.8 Cfsm 2.13 In. 28.96

Peak discharge (base, 125 cfs).--0ct. 17 (6 a.m.) 328 cfs (3.97 ft); Apr. 10 (2 to 10 a.m.) _.. .. 

(3.32 ft); AprT 30 (1 to 3 p.m.) 132 cfs (3.26 ft); July 10 (8 to 10 a.m.) 438 cfs (4.44 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

station at request.

b Stage-discharge relation affected by Ice.
DELAWARE RIVER BASIN

Request River at Request, N. J.

Location. La t 40°49i43", long 74°58'45", on right bank at Request, Warren County, 100 ft 

upstream from Lehigh and Hudson River Railway bridge and 300 ft downstream from Furnace 

Brook.

Drainage area. 108 sq mi.

Records available. November 1921 to September 1956.

Gage. Water-stage recorder. Concrete control since Sept. 29, 1929. Datum of gage is 

^98.78 ft above mean sea level, datum of 1929. Prior to June 22, 1926, staff gage at 

site 10 ft upstream at same datum.

Average discharge. --35 years, 154 cfs.

Extremes. Maximum discharge during year, 724 cfs Oct. 15 (gage height, 3.25 ft); minimum, 

50 cfs Jan. 8, result of freezeup.

1921-56: Maximum discharge, 1,810 cfs Mar. 14, 1936 (gage height, 4.97 ft), from 

rating curve extended above 1,200 cfs; minimum, 14 cfs Aug. 4, 5, 1955 (gage height, 

1.03 ft) .

Remarks. Records excellent.

Rating table, water year 

and discharge, in

1.4 55

1.6 89

2.0 183

1955-56 (gage height, in feet, 

cubic feet per second)

2.5 357

3.0 587

3.3 752

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfam

In.

Oct.

129

115

101

89

87

134

195

219

229

186

164

148

134

261

638

677

699

695

705 670"

622

554

503

448

386

325

284

259

242

270

284

10,452

337

3.12

3.60

Nov.

276

242

223

229

226

216

201

201

201

195

252

252

235

226

232

295

365

 27J7

302

287

276

270

256

245

229

219

210

204

189

175

7,216

241

2.23

2.48

Dec.

172

164

164

172

175

167

156

148

146

144

134

129

122

115

110

101

101

113

105

75

84

86

86

87

93

93

78

78

82

80

n

3,631

117

1.08

1.25

Jan.

78

70

73

76

76

78

76

5676"

129

148

148

159

141

120

109

105

120

93

.97

89

89

89

76

71

80

71

70

75

106

129

2,973

95.9

0.888

1.02

Feb.

103

TOT

172

17O

144

189

361

315

310

310

31O

313

295

276

256

235

210

284

329

321

317

291

262

223

213

229

223

216

210

7,189

248

2.30

2.48

Mar.

192 19~2

210

213

204

195

195

242

270

259

245

235

226

256

295

291

262

248

229

210

242

242

256

276

270

262

276

284

284

284

287

7,632

246

2.28

2.63

Apr.

280

266

259

256

256

252

287

325

370

421

439

417

395

374

361

395

382

374

365

341

310

280

262

259

248

239

235

226

219

2T55"

9,328

311

2.88

3.21

May

245

259

*280

276

266

248

313

We

287

262

242

232

223

207

189

180

172

167

164

167

159

146

144

154

146

134

134

148

138

127

124

6,239

201

1.86

2.15

June

134

170

2~8T 298

229

180

159

138

129

138

189

141

127

113

103

97

97

93

84

80_

82

84

87

107

91

82

91

111

107

87

3,912

130

1.20

1.35

July

80

76

93

89

120

146

146

120

188

295

370

466

518

527

454

466

434

399

349

302

291

266

245

226

198

172

164

164

156

141

129

7,830

253

2.34

2.70

Aug.

120

115

107

101

99

99

113

113

101

93

86

80

82

82

80

76

75

70

70

75

97

109

93

82

76

70

65

61

61

65

154

2,750

88.7

0.821

0.95

Sept.

151

105

148

127

99

101

192

TBT

109

91

80

76

73

70

70

89

99

93

80

75

73

70

68

70

71

68

70" 63

73

70

2,775

92.5

0.856

0.96

Calendar year 1955: Max 942 Mln 14 Mean 159 Cfsm 1.47 In. 20.01

Water year 1955-56: Max 705 Min 56 Mean 197 Cfsm 1.82 In. 24.78

Peak discharge (base, 500 cfs). Oct. 15 (4 p.m.) 724 cfs (3.25 ft); July 14 (l to 7 a.m.) 537 cfs 

(2.90 ft).

* Discharge measurement made on this day.
DELAWARE RIVER BASIN 225

Beaver Brook near Belvldere, N. J.

Location. Lat 40°50'40", long 75°02'48", on right bank 2,000 ft upstream from mouth and 

2 miles east of Belvidere, Warren County.

Drainage area. 36.2 sq ml.

Records available. May 1922 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 303.36 ft above mean sea level, datum of 

1929.

Average discharge. 34 years, 52.8 cfs.

Extremes. Maximum discharge during year, 587 cfs July 10 (gage height, 3.96 ft); minimum, 

11 cfs Aug. 29-31; minimum gage height, 1.50 ft Aug. 30.

1922-56: Maximum discharge, 1,510 cfs Mar. 12, 1936 (gage height, 5.76 ft), from 

rating curve extended above 990 cfs on basis of slope-area and contracted-opening 

determinations of peak flow; minimum, 1.1 cfs Aug. 3, 4, 1955.

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

561 

581 

661 

711 

756

Water 

year

1923 

1924 

1928 

1931 

1934

Date

Mar. 17, 

Apr . 7 , 

July 15, 

July 11, 

Mar. 5,

1923 

1924 

1928 

1931 

1934

Discharge 

(cfs)

656 

512 

687 

645 

373

Gage height 

(feet)

3.83 

3.46 

3.92 

3.80 

3.21

Remarks. Records excellent except those for periods of ice effect, which are fair.

Revisions. WSP 781: Drainage area. Revised figures of discharge, in cubic feet per 

second, for some periods in water years 1923 and 1928, superseding those published in 

WSP 561 and 661, are given herewith:

1923 

Jan.

1923-Con. 

Jan. 15..

1928 

July 15........... 652

Month

Calendar year 1923. ..........

July 1928. .....................

Calendar year 1928 ...........

Maximum

636

652

652

Minimum

3.1

49

10

Mean

34 7

39.2

195

79.2

Per square 

mile

1.21

1.08

5.39

2*19

Runoff In 

inches

14. 7O

6.21

29.74
226 DELAWARE RIVER BASIN

Beaver Brook near Belvidere, N. J. Continued

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.5 

1.7

2.0 

2.4

2.8 

3.4 

3.9

174

355

560

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

25

23

19

17

16

28

52

50

54

42

37

33

30

78

349

454

412

316

240

192

158

130

111

99

91

82

74

67

64 

80

99

3,522

114

3.15

3.62

Nov.

79

69

64

66

61

54

52

54

 50

49

74

69

61

64

66

90

130

119

111

108

101

94

86

82

74

69

66

61

54 

50

2,227

74.2

2.05

2.29

Dec.

48

46

46

49

49

46

41

39

39

37

33

33

31

29

29

27

26

25

25

23

22

21

20

20

20

21

20

19

18 

17

T?

936

30.2

0.834

0.96

Jan.

16

15

15

15

15

15

15

14

16

27

33

33

35

30

25

26

19

20

19

20

19

18

18

17

17

16

15

15 s637

20.5

0.566

0.65

Feb.

26

26

51

45

45

77

199 156"

126

99

88

117

96

76

72

46

59

102

169

136

109

85

75

65

74

88

74

74

67

2,522

87.0

2.40

2.59

Mar.

59

62

67

65

62

62

66

82

91

80

78

82

78

91

120

109

97

99

84

90

86

86

90

101

90

91

102

102

99 

101

104

2,676

86.3

2.38

2.75

Apr.

96

91

90

88

86

80

96

124

151

162

158

149

134

120

117

158

153

130

117

106

96

88

90

88

78

75

74

67

67

3,225

108

2.98

3.31

May

74

 67

88

76

72

67

10491"

79

76

74

69

64

59

54

50

46

45

44

44

41

38

41

44

37

33

34

40

33 

29

28

1,741

56.2

1.55

1.79

June

33

37

99

79

59

49

41

37

33

43

49

36

26

23

22

20

20

19

17

16

17

19

18

26

18

15

25

35

23 

19

973

32.4

0.895

1.00

July

16

15

20

20

38

51

40

32

190

555

334

217

165

162

156

120

85

78

66

59

76

75

61

52

47

42

41

42

39

34

30

2,936

94.7

2.62

3.02

Aug.

26

25

22

21

20

22

26

25

22

19

17

16

17

20

18

17

15

14

14

14

22

27

20

17

15

14

13

12

12 

11

583

18.8

0.519

0.60

Sept.

46

42

39

30

25

25

42

33

26

23

21

20

18

18

18

22

24

22

20

18

18

17

16

17

17

15

14

16

17 

16

695

23.2

0.641

0.71

Calendar year 1955: Max 522 Mln 1.2 Mean 49.1 Cfsm 1.36 In. 18.40

Water year 1955-56: Max 533 Mln 11 Mean 61.9 Cfsm 1.71 In. 23.29

Peak discharge (base. 225 cfs). 0

(3.09 ft); July 10 (6 a.m.) 587 cfs (

:t. 15 (5 p.m.) 528 cfs (3.83 ft); Feb. 7 (4 p.m.) 252 cfs 

3.96 ft).

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 16, 17, 20-23, Dec. 27 to Jan. 2, Jan. 

19, 21, 24-28.
DELAWARE RIVER BASIN 227

Delaware River at Belvidere, N. J.

Location. Lat 40°49'36", long 75°05'02", on left bank at Belvidere, Warren County, 1,500

ft downstream from Bequest River. 

Drainage area. 4,535 sq ml.

Records available. October 1922 to September 1956. 

Gage. Water-stage recorder. Datum of gage is 226.43 ft above mean sea level, datum of

1929. Prior to Jan. 1, 1929, staff gage at site 200 ft upstream at same datum. 

Average discharge. 34 years, 8,310 cfs (unadjusted). 

Extremes. Maximum discharge during year, 93,300 cfs Oct. 16 (gage height, 18.13 ft); mlnImum, 1,940 cfs Aug. 26, 27 (gage height, 3.31 ft).

1922-56: Maximum discharge, 273,000 cfs Aug. 19, 1955 (gage height, 30.21 ft, from

high-water mark in gage house), from rating curve extended above 110,000 cfs on basis

of flood-routing study; minimum, 609 cfs Sept. 28, 29, 1943 (gage height, 2.11 ft). 

Flood of Oct. 10, 1903, reached a stage of 28.6 ft, from floodmark (discharge,

220,000 cfs, from rating curve extended above 170,000 cfs).

Revisions. Figures of maximum discharge for the water years 1923 and 1924 have been

revised to 77,000 cfs Mar. 24, 1923 (gage height, 15.7 ft, from graph based on gage

readings) and 114,000 cfs Apr. 7, 1924 (gage height, 19.0 ft, from graph based engage

readings), superseding those published In WSP 561 and 581. 

Remarks. Records excellent except those for period of ice effect, which are good. Flow

regulated by Lake Wallenpaupack, and by Toronto, Cliff Lake, Swinging Bridge, Neverslnk, and Pepacton Reservoirs (see p. 276). Diversion from Neversink Reservoir

(see p. 280). 

Revisions (water years). WSP 781: 1933(M). WSP 951: 1940-41, drainage area. Revised

figures of discharge, in cubic feet per second, for the water year 1923, superseding

those published in WSP 561, are given herewith:

19Z3

20..... . . .. 3,000

Month

February 

Calendsir year 1923

1923-Co 

Feb. 2 

2 

2 

2 

Z 

2

Maximum

6,840 

70,000

Minimum

2,800 

895

n.

3 Z

6......... 3

Mean

4,130 

7,130

,800 

,800 

,800 

,900 

,900 

,000

Per square

mile

0.911 

1.57

Runoff in 

inches

0.95 

21.37

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

Zl

22

23

24

Z5

26 

Z7

28 

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

6,060

6,870

6,180

6,180

5.250

5,700

21,600

23,500

19,400 

15,300

12,900

*10,700

9,220

10,100

*3Z,000

 73,000

74,400

47,800

33,200

25,400

20,600

17,400

14,400

12,400

12,500

12,200 

11,100

9,900 

9,140

10,300

32 , 100

606,800

19,570

»

-

Nov.

52,400

22,600

18,300

17,200

18,000

15,400

13,200

13,200

12,100 

11,300

12,400

12,600

11,500

11,500

14,600

16,500

26,200

23,600

19,000

16,900

14,600

13,800

12,400

11,500

10,100

10,400 

9,380

8.200 

8,610

8,240

445,730

14,860

_

-

Dec.

7,760

7,480

7,260

6,900

6,540

8,520

8,120

7,220

7,780 

6,840

6,240

4,990

5,790

5,760

5,460

5,430

4,820

4,600

4,120

5.640

3,780

3,730

3,760

4,050

4,760

4,740 

3,970

4,200 

4,850

4,600

4,280

171,990

5,548

-

-

Jan.

4,050

3,920

3,280

3,900

4,820

4,600

4,360

b3 , 500

bS.OOO 

b3,500

5,700

6,330

8,490

9.740

8,320

6,630

6,750

6,630

5,940

5,670

5,400

4,540

4,310

4,410

5,070

4,760 

4,230

4,150 

4,020

3,800

4,280

158,100

5,100

_

-

Feb.

4,880

4,930

5,020

4,280

3,950

4,000

6,330

6,900

6,690 

6,390

6,690

7,600

8,040

9,100

8,240

8,280

8,400

9,220

11,100

10 , 900

10,600

8,900

7,510

6,840

6,870

9,740 

13,200

14,200 

11,600

 

 - 

230,400

7,945

_

-

Mar.

9,900

9,020

9,540

11,300

12,600

12,600

15,100

24,200

35.900 

27^900

21,000

18,400

17,800

16,000

14,800

13 , 600

12,200

10,500

9,740

9,860

9,500

9,300

9,340

9,540

9,100

8,160 

8,740

8,940 

 8,740

9,060

8,550

410,930

13,260

-

-

Apr.

8,560

8,670

10,300

14,100

23,700

43,200

39,600

41,500

32,100 

27,200

26,200

25,600

24,500

23,000

20,800

21,900

31,600

35,700

28,400

23,200

19 , 600

16,900

17 , 100

20,200

19,200

17,400 

17,400

16,800 

17,000

32,500

 

703,730

23,460

_

-

May

55,000

27 , 100

24,500

23,100

19,400

16,800

17,500

18,200

15,300 

13,800

12 , 800

12,000

10,600

10,300

9,900

9,940

9,500

9,020

9,140

8.9OO

8,320

8,200

7,540

7,180

6,540

6,060 

5,760

6,210 

7,360

6,750

5,820

388,540

12,530

,.

-

June

6,600

10,400

15,700

21,600

16,800

13,200

11,200

9,460

8,430 

7,640

7,960

7,720

6,780

6,210

5,760

5,340

4,510

3,950

3,660

3,260

3,060

3,260

3,540

3,730

3,970

3,950 

3,660

3,610 

3,260

2,850

211,050

7,035

_

-

July

2.620

2,760

3,000

3,000

3,590

4,850

6,210

5,640

8,610 

*8,240

6,210

5,370

5,280

6,630

6,480

5,580

4,820

4,180

3,710

3,730

4,510

5,310

5,070

5,040

4,410

3,760 

3,760

4,100 

3,490

3,000

2,910

1.45,870

4,705

_.

-

Aug.

2.980

2,870

2,830

2,620

2,520

2,540

2,760

2,680

2,580 

2,460

2,380

2,250

2,230

2,330

2,290

2,270

2,250

2,200

2,180

2,110

2,620

2,790

2,460

2,250

2,110

2,000 

1.950

1,990 

2,060

2,090

2,540

74,190

2,393

_

-

Sept.

2,830

3,000

3,420

3,040

2,500

2,600

5,910

4,100

3,260 

2,600

2,600

2,480

2,360

2,330

2.290

2,460

2,700

3,640

4,820

4,050

3,280

4,510

3,830

3,400

4,680

7,960 

5,430

4,510 

3,920

3,560

108,070

3,602

_

-

Calendar year 1955 ! Max 184,000 Mln 94O Mean 9,301 Cfsm - In. -

Water year 1955-56 : Max 74,400 Mln 1,95O Mean 9,987 Cfsm - In. -

Peak discharge (base. 40,000 cfs).--Oct. 16 (10 p.m.) 93,300 cfs (18.13 ft); Oct. 31 (8 p.m.) 

41,300 cfs (11T90 ft); Apr. 6 (4 p.m.) 46,10O O fs (12.58 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
228 DELAWARE RIVER BASIN

Lehigh River at Stoddartsville, Pa.

Location. Lat 41°07'45", long 75°37'40", on left bank 75 ft upstream from concrete bridge 

on State Highway 115, at Stoddartsville, Luzerne County, 1.9 miles upstream from 

Tobyhanna Creek, and 4 miles southwest of Thornhurst.

Drainage area. 91.7 sq mi.

Records aviilable. October 1943 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 1,463.81 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Prior to Oct. 1, 1946, wire-weight gage at 

site 350 ft downstream at datum 2.14 ft lower.

Average discharge. 13 years, 201 cfs.

Extremes. Maximum discharge during year, 4,650 cfs Oct. 16 (gage height, 7.06 ft), from 

rating curve extended as explained below; minimum, 37 cfs Aug. 27, 28; minimum gage 

height, 0.40 ft Aug. 12.

1943-56: Maximum discharge, 31,900 cfs Aug. 19, 1955 (gage height, 16.37 ft, from 

floodmarks), from rating curve extended above 1,700 cfs on basis of slope-area determination of peak flow; minimum, 13 cfs Aug. 3-5, 7, 1955; minimum gage height, that 

of Aug. 12, 1956.

Flood of May 22, 1942, reached a stage of 12.03 ft, present site and datum (discharge, 

15,700 cfs).

Remarks. Records fair.

Revisions (water years ). WSP 1382: 1942(M), 1947, 1951.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sin

In.

Oct.

194

140

113 

88

TZ

359

764 

525

380

282

229

*183

161

488

2,480

5.770

1,940

1,100

712

520

401

308

260

240

250

215

183

167

178

1,090 

1,200

18,992

613

6.68

7.70

Nov.

738

520

430 

448

364

296

264 

247

221

197

221

247

271

*333

*329

669

960

638

488

418

356

314

285

285

260

237

215

203

180

170

10,804

360

3.93

4.38

Dec.

160

155

154 

157

167

162

140 

130

130

126

115

115

HO

100

115

100

110

*105

100

90

74

72

80

94

105

100

86

76

22

74 

72

3,444

111

1.21

1.40

Jan.

66

60

*62 

66

64

62

58 

54

56

70

90

96

92

82

74

70

68

64

62

64

62

60

60

58

56

56

52

50

50

60 

72

2,016

65.0

0.709

0.82

Feb.

70

66

68 

64

66

70

94 

96

*100

100

105

125

120

105

110

120

115

218

250

210

165

145

135

130

190

310

240

210

190

3,987

137

1.49

1.62

Mar.

165

172

206 

200

207

264

303 

573

580

461

452

474

393

352

*318

260

230

240

210

190

175

175

186

194

175

170

172

172

172

164 

160

8,165

263

2.87

3.31

Apr.

164

203

239 

456

712

687

764 

764

619

600

619

628

600

520

470

*506

502

405

345

299

268

310

348

356

303

307

325

288

409

600

13,616

454

4.95

5.52

Hay

443

376

426 

356

325

291

625 

502

393

352

314

278

278

264

231

221

200

214

206

186

170

157

157

160

144

135

150

162

147 

133

*138

8,134

262

2.86

3.30

June

135

208

452 

332

250

212

183 

160

150

152

150

133

124

115

106

102

104

94

83

77

96

121

100

106

96

83

106

112

88 

77

4,307

144

1.57

1.75

July

71

69

77

133

164

140 

113

233

216

150

*130

124

135

142

115

100

87

87

108

162

152

128

124

111

100

96

96

94

S3

79

3,704

119

1.30

1.50

Aug.

76

72

71 

64

66

74

87 

71

64

60

56

51

56

58

51

54

46

42

42

 40

64

56

43

39

40

39

37

37

45 

44

45

1,690

54.5

0.594

0.69

Sept.

66

60

54 

45

42

225

403 

177

114

88

69

60

50

45

51

90

102

94

64

138

115

80

70

155

135

90

76

85

79

71

2,993

99.8

1.09

1.21

Calendar year 1955: Max 18,90O Min 13 Mean 267 Cfsm 2.91 In. 40.45

Water year 1955-56: Max 3,770 Win 37 Mean 218 Cfsm 2.38 In. 33.20

Peak discharge (base. 1.500 cfsl.--0ct. 16 (l a.m.) 4,650 cfs (7.06 ft); Oct. 30 (11 p.m.) 1,500 

cfs (4.17 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 2, Dec.' 7, 8, Dec. 11 to Feb. 17, 

Feb. 19 to Mar. 1, Mar. 9, 16-22.
DELAWARE RIVER BASIN 

Lehlgh River at Tannery, Pa.

229

Location.--Lat 41°02'25", long 75°45'45", on right bank 600 ft upstream from highway 

bridge at Tannery, Luzerne County, and IT miles upstream from Black Creek.

Drainage area.--322 sq mi.

Records available.--October 1919 to September 1921 and October 1928 to September 1956 in 

reports of Geological Survey. June 1914 to September 1919 (gage heights and discharge 

measurements only), October 1919 to September 1926, October 1926 to September 1927 

(gage heights and discharge measurements only), and October 1927 to September 1941 in 

reports of Pennsylvania Department of Forests and Waters.

gage.--Water-stage recorder. Datum of gage is 1,042.06 ft above mean sea level, datum of 

T929. Prior to Oct. 18, 1928, chain gage at bridge 600 ft downstream at datum 12.65 ft 

lower.

Average discharge.--36 years (1919-26, 1927-56), 668 cfs.

Extremes. Maximum discharge during year, 11,000 cfs Oct. 15 (gage height, 9.21 ft), from 

rating curve extended as explained below; minimum, 126 cfs Aug. 27, 28 (gage height, 

1.10 ft).

1914-56: Maximum discharge, 58,300 cfs Aug. 19, 1955 (gage height, 22.2 ft, from 

floodmark), from rating curve extended above 7,100 cfs on basis of slope-area determination of peak flow; minimum, 0.9 cfs Sept. 28, 1936; minimum daily, 7.2 cfs Aug. 5, 

1936.

Remarks.--Records fair. Prior to Aug. 1, 1951, some regulation at low flow by powerplant 

above station; no regulation subsequent to Aug. 1, 1951, when dam at White Haven was 

demolished.

Revisions (water years).--WSP 681: 

l'J35-36(M).

Drainage area. WSP 1171: 1920-21, 1922-28(M), 1933-34,

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9 

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

500

450

390

350

330

520

1,500 

1,300

1,100 

900

780

678

588

1,140

6,810

*9.530

5,820

3,760

2,750

2,130

1,610

1,300 

1,060

956

990

914 

841

753

700

3,240

3,910

57 , 600

1,858

5.77

6.65

Nov.

2,850

2,080

1,660

1,660

1,300

1,060

939 

889

817 

761

849

889

964

1,110

1,160

2,220

5.200

 5,370

1,840

1,430

1,120

990 

*889

889

817

745 

700

655

542

520

37,915

1,264

3.93

4.38

Dec.

505

483

461

483

498

461

384

377

358 

332

307

332

290

267

301

261

261 

*290

290

260

240

230 

250

280

300

290 

270

250

240

260 

250

10,061

325

1.01

1.16

Jan.

240

220

*230

250

240

230

220 

200

200 

230

280

310

300

280

260

250

250 

230

220

230

220

210 

220

210

200

200 

190

180

180

210 

260

7,150

231

0.717

0.83

Feb.

230

220

240

230

220

290

680 

620

*520 

500

540

800

580

520

500

540

490 

900

1,000

860

708

565 

528

461

595

1.120 

939

833

700

16,929

584

1.81

1.96

Mar.

'648 618

730

720

700

1,000

1,200 

2,130

2.180 

1,560

1,430

1,430

1,120

1,060

964

*973

920 

920

840

760

720

700 

760

800

740

700 

700

720

720

700 

680

29,843

963

2.99

3.45

Apr.

700

820

860

1,640

2,460

2,270

2,460 

2,560

2,080 

2,130

2,270

2,410

2,360

2,030

1,750

*2,030

2,030 

1,560

1,250

1,100

1,000

1,050 

1,200

1,250

1,100

1,050 

1,100

1,050

1,420

2jB50

49,840

1,661

5.16

5.76

May

2,130

1,730

1,890

1,430

1,200

1,100

2.520 

1,980

1,400 

1,200

1,100

1,050

1,050

960

817

785

722 

745

738

678

618

572 

588

618

550

498 

555

625

550

490 

*476

51,145

1,005

5.12

5.60

June

505

780

2.220

1,700

1,200

1,020

860 

740

640 

660

620

540

470

420

584

371

384 

391

364

359

345

425

577

455

391

377 

432

500

420

550

18,678

623

1.93

2.16

July

320

510

590

560

560

660

560

500

960

897

610

*515

476

490

498

446

598

577

551

425

569

610 

498

476

432

398 

598

577

539

307 

284

14,789

477

1.48

1.71

Aug.

267

250

254

219

219

229

250 

234

219 

194

180

162

171

185

175

198

166 

149

149

*153

*253

M180

145

138 

130

128

153

171 

175

6,011

194

0.602

0.69

Sept.

313

352

267

205

171

783

1.720 

730

490

371

307

278

250

230

240

500

520 

510

270

590

571

507 

284

464

446

571 

526

539

559

519

11,841

595

1.25

1.37

Calendar year 1955 : Max 36,000 Min 64 Mean 807 Cfsm 2.51 In. 34.02

Water year 1955-56 : Max 9,530 Min 128 Mean 797 Cfsm 2.48 In. 33.72

Peak diBOharce (base. 3.500 efs).~0et. 15 (Ili30 p.m.) 11.000 ofs (9.21 ft)s Oct. 30 (9 p.m.)

4,630 ofs (5.46 ft); Nov. 16 (12 P.m.) 3,650 ofs (4.64 ft).

* Discharge measurement made on this day.

Note. No gage-height record Oct. I'll, Mar. 17 to Apr. 3, Apr. 19-28, May 5, 6, 9-14, Sept. 13- 

20; discharge estimated on basis of recorded range In stage, weather records, and/or records for 

upstream and downstream stations. Stage-discharge relation affected by ice Dec. 19 to Feb. 20. 

Doubtful gage-height record Mar. 4-7, June 7-14, June 28 to July 9; discharge computed on basis 

of recorded graph, weather records, and records for upstream and downstream stations.

505690 O - 59 - 16
230 DELAWARE RIVER BASIN

Dllldown Creek near Long Pond, Pa.

Location. Lat 41°02'10", long 75 0 32'35", on left bank 60 ft upstream from timber bridge

 on Shucks Mill Road, 2.8 miles upstream from Mud Run, 4 miles northeast of Albrightsville, and 4.4 miles west of Long Pond, Monroe County.

Drainage area.--2.39 sq mi.

Records available . October 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,665.07 ft above mean 

sea level, datum of 1929.

Average discharge. 8 years, 5.57 cf s .

Extremes. Maximum discharge during year, 197 cfs Oct. 15 (gage height, 2.915 ft); minimum

 daily, 1.17 cfs Jan. 28; minimum gage height, 0.99 ft Feb. 2.

1948-56: Maximum discharge, 342 cfs Aug. 18, 1955 (gage height, 3.37-ft); minimum, 

0.48 cfs Sept. 6, 1954 (gage height, 0.84 ft).

Remarks. Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair.

Revisions (water years).--WSP 1382: 1949(M), 1950-53.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

0.95

1.0

1.1 

1.3 

1.5

0.96

1.22

1.85

3.8

7.4

1.7 

1.9 

2.1 

2.3 

2.5

13.7

24.5

42

67

101

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

4.3

3.15

2.85

2.75

ZjJ.

17.1

12.4

10.2

7.1

6.0

5.4

 5.1

4.9

34.5

100

69

32

19.8

15.1

12.3

11.0

9.6

8.7

9.0

8.9

7.8

6.9

6.5

8.0

55

18 . 5

516.55

16.7

6.99

8.04

Nov.

12.4

10.8

11.1

11.2

9.0

8.2

7.9

7.6

6.8

6.5

8.8

9.0

7.5

 7.3

*6.5

20.7

12.2

8.4

7.9

7.5

7.1

6.8

6.8

6.9

6.0

5.7

5.4

5.3

4.85 

4.55

246.70

8.22

3.44

3.84

Dec.

4.3

4.25

4.55

4.85

4.7

4.1

3.8

3.7

3.65

3.45

3.35

3.3

3.1

2.9

3.0

2.8

2.5

*2.6

2.5

2.4

2.2

2.1

2.2

2.4

3.05

d2.55

d2.30

2.17

d2.09 

d2.05

2 01 ' 

94.92

3.06

1.28

1.48

Jan.

1.97

1.85

1.82

1.78

1.75

1.72

1.72

1.62

1.62

1.99

2.30

1^43

2.14

1.75

1.62

1.55

1.52

1.46

1.43

1.43

1.40

1.40

1.37

1.34

 1.31

dl.22

dl.19

dl.17

dl.19 

dl . 65

1.37

50.08

1.62

0.678

O.78

Feb.

1.25

1.28

1.31

dl.19

dl.19

dl.25

1.77

1.78

1.87

2.01

2.6

4.3

2.7

1.97

2.9

2.65

2.17

3.95

3.6

3.05

2.45

2.2

2.05

1.9

4^5

4.3

3.1

3.2

2.4

70.89

2.44

1.02

1.10

Mar.

2^3

 3.1

3.7

5.2

5.7

5.4

6.6

13. 0

6 . 7

5.4

8.8

6.1

5.2

5.1

4.7

4.4

4.2

4.0

3.95

3.75

3.8

4.0

4.3

4.7

3.95

4.1

4.65

4.5

4.25 

4.3

4.55

154.40

4.98

2.08

2.40

Apr.

5.3

672

8.4

13.3

11.4

 8.9

15.3

11.0

9.9

12.4

14.3

13.3

11.4

9.6

10.0

18.1

11.2

9.0

8.2

7.5

7.0

8.0

10.5

8.2

6.5

8.0

7.9

6.7

13.3

'

316.3

10.5

4.39

4.92

May

11.0

11.2

12.4

9.3

8.2

7.6

15.6

8.7

7.4

7.2

6.8

6.8

7.0

6.3

 5.7

5.7

5.1

5.2

4.9

4.8

4.4

4.2

8.5

5.7

4.25

3.95

5.9

6.5

4.3 

4.0

6.2

214.80

6.93

2.90

3.34

June

7.3

10.8

16.1

8.1

6.9

6.3

5.7

5.2

5.1

6.7

7.1

5.0

4.5

4.0

3.8

3.75

3.95

3.45

3.2

3.15

4.05

3.6

3.3

5.2

*3.2

2.8

10.2

5.5

3.35 

2 . 85

164.15

5.47

2.29

2.55

July

5

4.7

3.3

6.7

6.3

4.0

3.6

8.7

5.0

3.75

3.45

4.2

6.8

3.8

3.45

3.2

2.85

4.5

5.6

11.8

5.9

4.6

4.2

3.8

3.65

4.65

3.95

3.5 

3.15

3.05

141.60

4.57

1.91

2.20

Aug.

2.9

2.7

2.6

2.55

3.0

3.5

*3.05

2.48

2.25

2.25

2.05

2.05

3.25

2.8

2.21

2.05

1.89

1.85

1.85

2.10

6.2

2.55

2.05

1.89

1.72

1.65

1.65

1.65

1.93 

1 68

2.01

74.36

2.40

1.00

1.16

Sept.

3.8

1.93

1.62

1.55

1.52

8.2

4.4

1.97

1.72

1.62

1.59

1.55

1.52

1.49

2.18

2.45

2.75

 2.24

1.68

2.9

1.78

1.65

3.35

9.8

'2765

2.3

2.17

2.8

2.3 

2.17

79.65

2.66

1.11

1.24

Calendar year 1955: Max 108 Mln 0.62 Mean 6.25 Cfsm 2.62 In. 35.50

Water year 1955-56: Max 100 Mln 1.17 Mean 5.80 Cfsm 2.43 In. 33.05

cfs).--Oct. 15 (5 p.m.) 197 cfs (2.915 ft); Oct. 30 (10 a.m.) 94 cfs 

TmTJ 48 cfs '- - '

Teak discharge (base. 45 c 

(2.46 ft); Apr. 30 (12:30 a.

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basia of recorded graph, weather records, and 

records for nearby stations.

JJo£e.-- Stage-discharge relation affected by Ice Dec. 13-24, Feb. 21-24, 29, Mar. 1, 6-8, 16, 17.
DELAWARE RIVER BASIN 231

Wild Creek at Hatchery, Pa.

Location. Lat 40°55'25", long 75°33'30", on left bank at Hatchery, Carbon County, 0.5 mile 

downstream from Cross Run, 2.2 miles upstream from Wild Creek Dam, and 4 miles upstream 

from mouth .

Drainage area. --16. 8 sq mi.

Records available. February 1941 to September 1956.

Gage. --Water-stage recorder. Datum of gage is 842.71 ft above mean sea level, datum of 

"1929.

Average discharge. 15 years, 38.3 cfs.

Extremes . --Maximum discharge during year, 326 cfs Apr. 30 (gage height, 3.51 ft), from 

rating curve extended above 220 cfs as explained below; minimum, 2.9 cfs Aug. 20, 

caused by construction work upstream (gage height, 1.34 ft); minimum daily, 7.8 cfs 

Jan. 27, 28.

1941-56: Maximum discharge, 2,360 cfs May 23, 1942 (gage height, 6.00 ft), from 

rating curve extended above 220 cfs on basis of contracted-opening determination at 

gage height 5.59 ft; minimum, that of Aug. 20, 1956; minimum daily, 4.5 cfs Oct. 25-28, 

1954.

Remarks . Records good except those for periods of ice effect, which are fair.

Revisions (water years) . WSP 1051: Drainage area. WSP 1382: 

1949, 1951-53.

1941-42, 1944-45, 1947,

Rating tables, water year 1955-56, except periods of ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 18 Feb. 19 to Sept. 30

1.55 

1.7 

1.9 

£.1

6.9

12

21

38

3.5 

3.0 

3.2

183

232

1.65

1.8

3.0

£.5

3.0

10

17

30

88

183

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

Z3

24

25

26

27

28

29

30

31

Total

Mean

Cf sin

In.

Oct.

22

17

16

15

15

48

41

41

36

33

*31

32

30

66

162

212

T7?

137

117

99

88

78

71

68

65

59

55

51

49 

110

80

2,116

68.3

4.07

4.68

Nov.

71

68

65

64

61

60

54

50

47

45

51

47

44

42

40

73

75

*65

62

60

56

55

54

50

48

46

44

42

40 

38

1,612

53.7

3.20

3.57

Dec.

35

3T

33

33

32

31

29

28

28

26

25

24

23

21

21

20

19

*19

19

18

15

14

15

16

17

16

15

14

14 

15

15

684

22.1

1.32

1.51

Jan.

14

13

14

14

14

14

14

12

13

15

15

14

14

13

13

12

12

11

12

12

10

8.4

8.1

8.4

8.2

*8.0

7.8

778

9.4

11 

11

363.1

11.7

0.696

0.80

Feb.

10

9.8

10

9.4

9T5

10

20

18

17

17

21

30

23

19

20

20

18

36

36

34

30

28

26

25

30

32

28

*30

27

644.0

22.2

1.32

1.43

Mar.

26

28

29

33

30

30

34

50

47

44

54

53

48

50

48

47

46

43

42

40

39

39

41

42

41

41

44

44

44 

45

46

1,288

41.5

2.47

2.85

Apr.

46

4F

*49

54

54

50

65

68

68

71

71

71

69

65

65

80

68

64

61

59

55

57

61

55

50

53

51

48

82 

180

1,936

64.5

3.84

4.29

May

128

12T

117

101

93

90

115

94

82

81

75

73

71

64

*61

59

54

51

48

45

43

40

41

37

35

33

34

35

30 

?8~ 28

2,008

64.8

3.86

4.45

June

34

42

71

60

59

57

55

54

50

47

45

41

37

34

31

32

32

28

26

24

25

25

23

29

*24

22

32

25

22 

20

1,106

36.9

2.20

2.45

July

19

18

25

21

33

36

28

24

73

45

38

36

36

39

33

30

28

27

26

27

51

36

31

29

28

40

48

37

33 

30

29

1,035

33.4

1.99

2.29

Aug.

28

28

26

26

27

29

25

25

24

*22

20

20

22

22

19

18

17

16

16

16

28

18

16

16

14

14

14

14

14 

13

5?

630

20.3

1.21

1.39

Sept.

21

14

13

12

II

66

44

28

24

22

20

19

18

17

19

22

20

19

17

*21

17

16

18

30

20

18

18

20

18 

17

639

21.3

1.27

1.41

Calendar year 1955: Max 544 Mln 6.1 Mean 35.9 Cfsm 2.14 In. 29.03

Water year 1955-56: Max 212 Mln 7.8 Mean 38.4 Cfsm 2.29 In. 31.12

Peak discharge (base. 250 efs).--0et. 16 (1 p.m.) 251 cfs (3.27 ft); Apr. 30 (12:30 a.m.) 326 ofs 

(3.51 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 21-24, 28, 29, Jan. 2, 8, 9, 24-28, Feb. 1-4.
232 DELAWARE RIVER BASIN

Pohopoco Creek near Parryvllle, Pa.

Location. Lat 40°49'55", long 75°40'55", on right bank 1.2 miles downstream from Bull Run, 

1.2 miles north of Parryville, Carbon County, and 2.3 miles upstream from mouth. Prior 

to Dec. 13, 1955, at site 0.2 mile upstream.

Drainage area. 109 sq mi.

Records available. October 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage is 454.61 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Oct. 1 to Nov. 1, 1940, staff gage and Nov. 2, 

1940, to Dec. 12, 1955, water-stage recorder, at site 0.2 mile upstream at datum 

4.64 ft higher.

Average discharge. 16 years, 234 cfs (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 2,620 cfs Oct. 16 (gage height, 4.75 ft, site 

and datum then in use); maximum gage height, 6.31 ft Feb. 8 lice Jam), present site 

and datum; minimum daily discharge, 39 cfs Jan. 28.

1940-56: Maximum discharge, 5,300 cfs May 23, 1942 (gage height, 7.42 ft, former 

site and datum); minimum, 21 cfs Aug. 6, 7, 1955.

Remarks. Records good except those for periods of ice effect, which are fair. Plow regulated by Wild Creek Reservoir (see p. 277). Figures of daily discharge do not include 

diversion from reservoir to city of Bethlehem.

Revisions. WSP 1051: Drainage area. WSP 1272: 1941-43 (monthly net adjustment for 

diversion and change in reservoir contents).

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

(t)

Oct.

117

99

94

90

89_

165

208

216

205

 197

 190

177

167

352

1,480

2,510

1, 120

1,150

940

702

576

490

425

390

345

310

290

280

300

471 

425

14.97C

483

30.1

Nov.

360

325

300

280

252

234

221

212

195

186

243

208

186

186

195

352

445

»39"5

370

345

305

275

252

238

216

204

191

182

162

155

7,670

256

30.4

Dec.

139

136

136

136

132

118

104

97

94

86

84

*98

90

90

86

80

*90

92

88

84

74

70

84

82

80

76

68

64

S8

66 

66

2,858

92.2

30.0

Jan.

62

60

62

64

62

60

58

50

60

76

84

80

78

72

68

64

68

60

56

64

52

54

*52

44

45

41

41

39

42

66 

68

1,852

59.7

30.3

Feb.

48

48

60

52

54

120

390

290

210

175

213

298

182

148

148

148

136

324

369

256

207

175

155

140

191

224

 159

165

154

5,235

181

30.8

Mar.

135

151

162

156

148

146

154

217

231

210

217

221

204

210

217

221

214

195

188

176

170

170

185

207

204

204

317

217

217

221 

221

6,006

194

31.0

Apr.

207

204

 207

224

341

224

298

454

454

440

436

408

373

335

314

386

347

310

290

274

256

348

267

241

217

221

214

201

207

865

9,363

312

30.9

May

550" 740

571

467

408

386

566

477

431

408

364

339

326

*302

271

252

227

214

198

188

176

165

173

162

148

140

148

159

138

130 130"

9,384

303

30.8

June

159

181

373

3T8

282

252

231

214

198

192

195

165

156

146

138

133

133

128

116

109

109

112

112

154

*112

102

130

121

102

96

4,969

166

32.0

July

94

15B" 92

115

234

306

231

182

530 456"

318

263

260

318

238

214

198

170

162

156

267

214

182

165

156

151

198

168

154

140 

133

6,540

211

32.0

Aug.

T23" 126

118

114

112

*116

116

105

98

96

94

94

92

96

90

87

81

79

79

77

116

94

81

77

74

72

70

70

68

66 

5TOO

2,864

92.4

32.7

Sept.

100

81

74

68

65

164

TS6~ 198

107

100

96

92

87

85

90

100

«94

96

90

92

87

85

87

109

98

94

92

92

90

87

2,926

97.5

32.5

Adjusted for diversion and change In contents in Wild Creek Reservoir

Mean

Cf sm

520 

4.77 

5.50

284 

2.61 

2.91

Calendar year 1955: 

Water year 1955-56:

121 

1.11 

1.28

70.8 

0.650 

0.75

215 

1.97 

2.12

243 

2.23 

2.57

344

3.16 

3.53

332 

3.05 

3.52

Observed

Max 3,180 Min 22 Mean 197 

Max 2,310 Min 39 Mean 204

197 

1.81 

2.03

244 

2.24 

2.58

119 

1.09 

1.26

122 

1.12 

1.25

Adjusted

Mean 232 Cfsm 2.13 In. 29.00 

Mean 234 Cfsm 2.15 in. 29.29

Peak discharge (base. 1.100 efs). Oct. 16 (3 p.m.) 2,620 cfs (4.75 ft).

* Discharge measurement made on this day.

t Diversion from Wild Creek Reservoir for municipal supply, equivalent in cubic feet per second; 

furnished by city of Bethlehem.

Note. Stage-discharge relation affected by ice Dec. 1O to Feb. 10, Feb. 22-24, Mar. 1 (no gageheight record Dec. 14 to Jan. 3; discharge estimated on basis of 1 discharge measurement, recorded 

range in stage, weather records, and records for nearby stations).
DELAWARE RIVER BASIN 233

Aquashicola Creek at Palmerton, Pa.

Location. Lat 40°48'20", long 75°35'55", on right bank 1,200 ft upstream from Sixth 

Street Bridge in Palmerton, Carbon County, and l£ miles upstream from mouth.

Drainage area.-- 76.7 sq mi.

Records available. October 1939 to September 1956.

Gage. Water-stage recorder. Datum of gage is 389.08 ft above mean sea level, datum of

 1929.

Average discharge. 17 years, 160 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 2,370 cfs Oct. 16 (gage height, 7.55 ft);

 minimum, 8.4 cfs Jan. 28 (gage height, 2.26 ft); minimum daily, 24 cfs Jan. 28.

1939-56: Maximum discharge, 11,700 cfs July 10, 1945 (gage height, 13.63 ft), from 

rating curve extended above 2,500 cfs on basis of contracted-opening determination of 

peak flow; minimum, 5.4 cfs Aug. 9, 10, 1955, from rating curve extended below 12 cfs; 

minimum daily, 9.5 cfs Aug. 10, 1955.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Regulation at low flow by mills above station. Occasional diversion from Pohopoco 

Creek into Aquashicola Creek above station. Figures of daily discharge do not include 

water diverted above station from Aquashicola Creek by the New Jersey Zinc Co.

Revisions (water years). WSP 1051: 1940-45 (monthly net diversion), drainage area.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Jan. Jan. 9 to Sept. 30

2.6 

2.9 

3.3

4.0

26

61

135

357

5.0 

6.0 

7.0

745

1,250

1,920

2.5 

2.8 

3.2

22

52

117

4.0 

4.6

357

581

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

(t)

Oct.

68 

57

56

54

53

114

120

155

158

148

*133

117

105

255

1,350

1.900

1,180

768

562

448

364

304

259

229

204

182

163

148

143

247

229

10,273

331

+ 1.1

Nov.

191 

171

160

152

140

131

126

122

113

109

175

133

124

131

131

282

430

364

*321

272

239

207

182

171

152

142

133

126

115

107

5,352

178

Dec.

101 

95

95

95

90

84

79

76

74

73

66

66

60

60

61

53

*55

57

54

46

44

43

51

51

51

48

42

39

42

40

40

1,931

62.3

Jan.

38 

36

37

38

37

36

35

29

35

49

51

49

55

45

41

38

39

33

31

36

31

32

*31

26

26

25

25

24

26

45

51

1,130

36.5

Feb.

Si 

37

60

51

50

113

386

291

204

162

177

259

168

137

132

119

103

324

347

255

205

166

144

130

174

158

*130

141

128

4,782

165

Mar.

a!20 

al25

a!40

al35

a!25

al25

al30

179

a235

a215

a230

211

196

230

255

276

276

242

217

193.

179

185

196

217

208

205

202

193

193

193

179

6,005

194

Apr.

163 

*168

158

163

161

153

234

343

404

486

460

379

321

283

279

335

290

276

269

255

239

217

226

196

174

187

168

156

"267 152

7,562

252

May

262 

267

296

252

239

228

304

262

259

255

230

214

208

*187

190

163

149

144

a!40

al30

119

113

127

115

103

99

107

109

95

90

92

5,548

179

June

115 

150

290

279

236

199

174

158

149

141

146

119

109

103

97

92

97

88

82

80

83

S3

S3

152

*83

68

93

83

66

jji

3,756

125

July

55 

53

69

110

375

530

413

314

556

543

430

364

350

332

269

239

214

187

168

156

302

262

217

193

182

168

175

158

141

130

121

7,776

251

Aug.

l&T

103

95

101

*103

94

80

76

74

70

66

74

77

65

62

58

56

57

56

112

77

60

53

51

48

46

46

45

45

96

2,272

73.3

Sept.

101 

70

60

52

.50.

99

132

97

83

76

71

70

65

62

66

85

*68

62

55

*61

53

51

53

74

60

56

57

72

65

61

2,087

69.6

Adjusted for diversion

Mean 

Cfsm 

In.

332 

4.33 

4.99

179 

2.33 

2.60

Calendar year 1955 : 

Water year 1955-56 :

68.5 

0.893 

1.03

44.2 

0.576 

0.66

171 

2.23 

2.40

198 

2.58 

2.97

255 

3.32

3.70

178 

2.32 

2.68

Observed

Max 2,940 Min 9.5 Mean 143 

Max 1,900 Mln 24 Mean 160

126 

1.64 

1.83

256 

3.34 

3.85

77.9 

1.02 

1.18

74.2 

0.967 

1.08

Adjusted

Mean 147 Cfsm 1.92 In. 25.99 

Mean 164 Cfsm 2.14 in. 28.97

Peak discharge fbase. 1.000 efs).- Oct. 16 (1:30 a.m.) 2,370 cfs (7.55 ft).

* Discharge measurement made on this day.

t Figures of net diversion, in cubic feet per second., include water diverted 

to Aquashicola Creek plus water diverted above station from Aquashicola Creek; 

Jersey Zinc Co.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather record! 

and records for stations on nearby streams.

:d from Pohopoco Creek 

furnished by New
234 DELAWARE RIVER BASIN

Lehigh River at Walnutport, Pa.

Location.--Lat 40"45'20", long 75°36'15", on left bank 0.3 mile upstream from highway 

bridge at Walnutport, Northampton County, and 0.4 mile upstream from Trout Creek.

Drainage area. 889 sq mi.

Records available. October 1946 to September 1956.

Gage. Water-stage recorder. Datum of gage is 350.27 ft above mean sea level, datum of 

1929.

Average discharge. 10 years, 1,988 cfs.

Extremes. Maximum discharge during year, 25,600 cfs Oct. 16 (gage height, 9.21 ft); minimum, 198 cfs Jan. 24 (gage height, 1.74 ft).

1946-56: Maximum discharge, 77,800 cfs Aug. 19, 1955 (gage height, 17.68 ft); minimum, that of Jan. 24, 1956; minimum gage height, 1.61 ft Aug. 3, 4, 1955. 

Maximum stage known, 20.6 ft May 23, 1942, from floodmarks.

Remarks. Records good except those for periods of ice effect, which are fair. Some regulation by Wild Creek Reservoir (see p. 277).

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Dec. 16 Dec. 17 to Sept. 30

2.5 890

3.0 1,670

4.0 3,680

Discharge, in cubic

5.0 6,630

7.0 14,800

8.7 23,100

Z.O 410

2.5 1,010

3.0 IjSOO

4.0 

4.8

3,790

6,070

feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,370

1,260

1,090

988

918

1,480

4,460 

3,930

3,320

2,680

*2,310

2,040

1,840

2,750

14,800

23.100

16,500

10,300

7,160

5,480

4,460

3,800

3,320

2,990

2,990

2,780

2,580

2,300

2,180

a'.soo

150,576

4,857

5.46

6.30

Nov.

5,960

4,600

3,930

3,680

3,210

2,880

2,680 

2,580

2,350

2,200

2,680

2,480

2,390

2,480

2,580

4,140

6.650

5,030

*4,190

3,680

3,210

2,990

*2,680

2,580

2,370

2,180

2,040

1,930

1,770

1,600

93,700

3,123

3.51

3.92

Dec.

1.570

1,500

1,480

1,500

1,500

1,420

1,290 

1,230

1,200

1,120

1,000

1,050

980

920

1,020

820

*880

980

1,040

S60

760

720

780

1,080

1,100

1,000

840

760

740

740

32,660

1,054

1.19

1.37

Jan.

720

660

668

753

753

716

704 

520

587

818

968

1,040

~^12 1.060

760

700

680

580

560

632

540

554

*576

500

480

470

460

440

480

632

779

20,702

668

0.751

0.87

Feb.

580

570

640

600

560

720

2,190 

2,050

1,800

1,600

1,690

2,410

1,990

1,630

1,610

1,750

1,570

2,600

3.440

2,890

2,410

1,900

1,800

1,600

1,830

2,600

*2,300

2,300

1,990

51,620

1,780

2.00

2.16

Mar.

1.700

1,850

2,060

2,060

1,990

2,190

2,410 

3,450

4.440

3,550

3,440

3,440

3,000

3,100

2,890

2,790

2,600

2,410

2,280

2,070

1,990

2,000

2,110

2,320

2,180

2,140

2,140

2,190

2,160

2,160

2,140

77,250

2,492

2.80

3.23

Apr.

2.020

*2,160

2,280

2,890

3,790

3,670

4,170 

5,290

4,570

4,710

5,000

4,850

4,710

4,170

3,790

4,170

4,040

3,550

3,100

2,890

2,600

2,600

2,790

2,890

2,600

2,600

2,600

2,410

2,790

6.010

105,710

3,524

3.96

4.42

May

5.000

4,170

4,570

3,920

3,440

3,210

4,850 

4,440

3,790

3,440

3,100

2,890

3,000

*2,690

2,410

2,320

2,160

2,060

2,000

1,900

1,770

1,660

1,730

1,820

1,580

1,450

1,520

1,780

1,570

1,440

1.420

83,100

2,681

3.02

3.48

June

1,720

2,080

4.850

4,170

3,320

2,790

2,500 

2,210

2,000

1,920

1,880

1,700

1,530

1,440

1,310

1,240

1,390

1,260

1,140

1,040

1,060

1,200

1,180

1,630

1,240

1,010

1,200

*1,440

1,160

968

53,578

1,786

2.01

2.24

July

870

831

1,120

1,360

2,410

3,210

2,600 

2,070

3.890

3,670

2,790

2,410

2,230

2,410

2,090

1,880

1,730

1,550

1,410

1,490

2,430

2,320

1,950

1,750

1,680

1,520

1,920

1,730

1,600

1,390

1,240

61,551

1,986

2.23

2.57

Aug.

1,190

1,120

1,020

954

1,020

1,130

1.200 

1,020

*898

831

740

680

753

898

740

728

704

620

598

598

1,000

1,010

792

692

609

565

543

532

620

716

25,108

810

0.911

1.05

Sept.

968

898

766

656

598

i ,280

3,820 

2,160

1,570

1,280

1,180

1,060

1,010

954

884

1,120

1,120

1,190

1,020

1,120

*1,130

968

926

1,370

1,390

1,180

1,080

1,250

1,200

1,120

32,268

1,209

1.36

1.52

Calendar year 1955: Max 62,400 Min 212 Mean 2,079 Cfsm 2.34 In. 31.76

Water year 1955-56: Max 23,100 Min 440 Mean 2,163 Cfsm 2.43 In. 33.13

Peak discharge (base. 9.000 cfs). Oct. 16 (1 a.m.) 25,600 cfs (9.21ft); Oct. 30 (11:30 p.m.) 

10,100 cfs (5.89 ft).

* Discharge measurement made on this day.

Note_.--Stage-discharge relation affected by ice Nov. 30, Dec. 11-14, 16-18, 20-23, Dec. 26 to 

Jan. 2, Jan. 8, 15-19, 21, 24-28, Feb. 1-6, 22-24, Mar. 1.
DELAWARE RIVER BASIN 235

Little Lehigh Creek near Allentown, Pa.

Location. --Lat 40°34'55", long 75°29'00", on right bank at highway bridge in Allentown, 

 Lehigh County, 0.8 mile upstream from Cedar Creek and 2.9 miles upstream from mouth.

Drainage area. 80.8 sq mi.

Records available . --October 1945 to September 1956. Prior to October 1946, published as 

"at Allentown. 1 '

~

Gage . - -Water- stage recorder. Datum of gage is 253.41 ft above mean sea level, datum of 

Average discharge. 11 years, 108 cfs.

Extremes .--Maximum discharge during year, 1,530 cfs Oct. 15 (gage height, 5.46 ft), from 

 rating curve extended above 400 cfs by logarithmic plotting; minimum, 29 cfs Sept. 14 

(gage height, 1.73 ft).

1945-56: Maximum discharge, 1,880 cfs Aug. 18, 1955 (gage height, 6.17 ft), from 

rating curve extended above 400 cfs by logarithmic plotting; minimum, 22 cfs Aug. 6, 

1955; minimum gage height, 1.39 ft June 17, 18, 22, 1949.

Flood of July 9, 1935, reached a stage of 9.5 ft, from information furnished by city 

of Allentown.

Remarks . --Records fair. Occasional regulation at low flow by fish hatchery above station.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf am

In.

Oct.

100

85

79

77

77

129

128

145

122

97

91

85

85

124

597

311

254

195

166

152

*145

141

128

128

132

128

128

128

125

179

155

4,616

149

1.84

2.12

Nov.

132

122

122

122

122

118

118

118

115

115

155

115

103

103

103

125

115

97

97

100

94

97

94

97

91

91

88

88

*85

88

3,230

108

1.34

1.49

Dec.

88

88

11

91

91

91

88

85

85

85

79

79

79

82

82

77

79

82

82

79

74

74

77

77

79

85

79

*77

77

79

77

2,538

81.9

1.01

1.17

Jan.

77

74

74

74

77

77

74

68

74

103

91

94

91

82

74

74

74

68

65

68

60

60

60

55

57

57

55

55

55

190

*138

2,395

77.3

0.957

1.10

Feb.

77

138

262

162

152

292

463

211

152

132

154

180

132

112

109

109

103

215

195

141

125

109

109

103

124

125

103

118

106

4,513

156

1.93

2.08

Mar.

97

100

100

97

94

*94

103

155

138

112

112

122

112

197

184

141

128

122

109

118

112

118

141

162

138

155

162

148

135

138

138

3,982

128

1.58

1.83

Apr.

128

118

115

112

112

103

162

226

311

*207

184

170

166

159

155

195

162

148

141

135

132

125

132

125

118

125

122

112

109

122

4,331

144

1.78

1.99

May

109

115

128

112

106

105

224

162

141

138

132

132

135

128

122

118

115

115

115

112

112

*112

118

112

106

103

103

106

97

97

112

3,742

121

1.50

1.72

June

115

115

148

109

94

94

88

88

85

85

94

85

85

85

85

88

82

77

77

74

77

77

77

91

77

74

82

85

77

68

2,638

87.9

1.09

1.21

July

67

63

*71

79

103

100

79

74

85

74

60

65

71

74

68

68

60

57

57

57

154

94

74

74

69

68

74

86

85

71

68

2,349

75.8

0.938

1.08

Aug.

65

65

63

57

74

22

77

68

60

57

55

55

*57

60

52

55

55

45

50

41

73

50

37

34

34

33

33

33

45

41

43

1,644

53.0

0.656

0.76

Sept.

45

47

41

33

33

34

60

41

33

33

31

33

33

33

39

55

41

41

39

52

47

41

41

50

*47

47

50

M

57

52

1,297

43.2

0.535

0.60

Calendar year 1955 : Max 1,020 Min 26 Mean 94.1 Cfsm i.ie In. 15.8!

Water year 1955-56 : Max 597 Min 31 Mean 102 Cfsm 1.26 In. 17.15

Peak discharge (base. 45O of si. Oct. 15 (l p.m.) 1,530 cfs (5.46 ft); Feb. 7 (7 a.m.) 700 cfs 

* Discharge measurement made on this day.
236 DELAWARE RIVER BASIN

Jordan Creek at Allentown, Pa.

Location.--Lat 40°37'25", long 75°29'00", on right bank 200 ft upstream from bridge on 

State Highway 145, 0.5 mile northwest of city limits of Allentown, Lehigh County, and 

2.5 miles upstream from mouth.

Drainage area. 75.8 sq mi.

Records available.--October 1944 to September 1956.

Gage.--Water-stage recorder, crest-stage indicator and rubble masonry control. Datum of 

gage is 259.82 ft above mean sea level, datum of 1929 (Pennsylvania State highway 

benchmark).

Average discharge . 12 years, 122 cfs.

Extremes.--Maximum discharge during year, 2,730 cfs Oct. 16 (gage height, 4.05 ft in gage 

well; 4.20 ft outside, from floodmarks), from rating curve extended above 1,900 cfs as 

explained below; minimum, 11 cfs Jan. 29; minimum gage height, 1.63 ft Aug. 18, 28.

1944-56: Maximum discharge, 9,520 cfs Aug. 19, 1955 (gage height, 6.39 ft in gage 

well; 8.00 ft outside, from floodmarks), from rating curve extended above 1,900 cfs on 

basis of slope-area determination of peak flow; minimum, 2.5 cfs Aug. 15, 1946 (gage 

height, 1.50 ft); minimum daily, 3.4 cfs Oct. 15, 16, Nov. 6-8, 12, 1944.

Flood of May 23, 1942, reached a stage of approximately 7.1 ft outside, 

marks 650 ft downstream.

Remarks.--Records fair. Some regulation at low flow by mills above station. 

Revisions. WSP 1171: Drainage area.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, 

in cubic feet per second)

from floodOct. 1 to Feb. 6 Feb. 7 to Sept. 30

1.6

1.7

1.8 

2.0 

2.3

113

269

2.6 490

3.0 915

3.5 1,670

3.7 2,020

1.65

1.7

1.8 

2.0

2.3 

2.6 

3.0 

3.2

274

490

915

1,200

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

59

45

40

35

35

160

263

289

257

222

179

149

122

208

1,330

1.920

996

610

425

*309

245

200

163

149

144

118

105

93

86

256

198

9,410

304

4.01

4.62

Nov.

154

131

122

109

97

89

82

82

72

69

169

113

97

97

93

175

258

228

210

205

174

154

136

126

105

97

93

*89

63

72

3,761

125

1.65

1.85

Dec.

62

65

69

65

69

59

53

51

51

44

36

43

38

35

38

25

29

31

31

23

23

20

18

23

27

31

*23

18

20

18

21

1,159

37.4

0.493

0.57

Jan.

20

17

17

21

21

25

25

20

20

27

38

40

48

48

33

32

29

25

24

25

25

23

25

17

17

15

14

14

14

*61

121.

901

29.1

0.384

0.44

Feb.

38

43

234

200

157

347

1,140

435

240

145

133

244

145

107

95

88

70

258

398

251

188

128

114

96

129

165

103

128

139

5,958

205

2.70

2.92

Mar.

99

107

111

103

*95_

*99

111

195

268

240

239

228

202

354

610

482

361

280

228

192

163

173

212

293

246

240

246

234

217

207

188

7,023

227

2.99

3.45

Apr.

159

141

132

127

119

107

179

361

403

*454

381

300

2 4O

197

173

207

174

141

132

119

111

103

111

103

88

92

92

77

70

150

5,223

174

2.30

2.56

May

99

92

156

123

111

107

257

2T2

188

173

150

132

141

119

99

88

70

67

64

58

52

*47

49

49

39

34

34

49

37

29

34

2,959

95.5

1.26

1.45

June

39

48

142

70

52

47

39

37

37

39

39

34

29

27

21.

25

34

32

25

21

23

29

21

76

44

29

39

52

29

23

1,202

40.1

0.529

0.59

July

21

*25

42

37

86

150

107

77

735

434

251

173

136

145

92

74

70

58

49

42

220

178

145

123

103

81

107

74

107

77

64

4,081

132

1.74

2.00

Aug.

58

49

42

37

39

47

52

39

32

29

27

25

*32

34

27

23

21

17

23

27

71

61

34

27

27

23

23

21

23

21

88

1,099

35.5

0.468

0.54

Sept.

64

44

34

27

23.

29

~52 103

42

39

37

34

34

27

27

71

44

37

27

34

37

27

27

61

*44

32

29

66

55

44

1,251

41.7

0.550

0.61

Calendar year 1955: Max 4,050 Mln 4.1 Mean 126 Cfsm 1.66 In. 22.52

Water year 1955-56: Max 1,920 Min 14 Mean 120 Cfsm 1.58 In. 21.60

Peak discharge (base, 1.300 cfa]. pet. 16 (12:30 a.m.) 2,730 cfs (4.05 ft); Feb. 7 (4 a.m.) 

2, 13O Cfs ( 5.76 ft).

* Discharge measurement made on this day.
DELAWARE RIVER BASIN 237

Monocacy Creek at Bethlehem, Pa.

Location. Lat 40°38'30", long 75°22'50", on downstream side of right span of highway 

bridge at entrance to Monocacy Park at Bethlehem, Northampton County, 2.1 miles upstream from mouth.

Drainage area. 44.5 sq ml.

Records available. October 1948 to September 1956.

Gage. Wire-weight gage and crest-stage indicator; gage read twice daily. Datum of gage 

is 247.24 ft above mean sea level (levels by Corps of Engineers).

Average discharge. 8 years, 54.4 cfs.

Extremes. Maximum discharge during year, 623 cfs Feb. 7 (gage height, 5.06 ft); minimum 

 daily, 14 cfs Sept. 13; minimum gage height observed, 2.20 ft Oct. 3.

1948-56: Maximum discharge, that of Feb. 7, 1956; minimum, 10 cfs Nov. 9, 1954; 

minimum gage height, 2.02 ft June 28, 1955.

Flood of July 10, 1945, reached a stage of 9.74 ft, from floodmarks (discharge, 

5,200 cfs, by slope-area determination).

Remarks. Records fair prior to Apr. 1, poor thereafter. Some regulation at low flow by 

mill above station since April 1954.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

24

25

21

21

24

38

24

33

30

30

24

24

26

44

236

379

310

189

138

*91

81

62

55

47

50

42

46

45

40

47

53

2,299

74.2

1.67

1.92

Nov.

44

40

39

38

38

39

42

36

37

38

47

42

38

37

37

69

81

75

74

68

67

64

54

53

44

42

36

36

*34 Tc1

JO

1,425

47.5

1.07

1.19

Dec.

36

40

39

38

31

36

35

32

34

32

31

26

26

36

30

28

30

32

29

24

33

30

29

32

33

32

*30

28

23 

tt£b

28

969

31.3

0.703

0.81

Jan.

29

26

30

28

30

27

31

29

32

27

28

26

32

27

28

24

28

24

28

26

28

27

24

21

18.

24

22

24

23

*45~ 83

899

29.0

0.652

0.75

Feb.

28

31

94

53

60

91

346

128

77

59

48

88

54

46

44

46

39

102

108

69

60

40

49

46

47

56

46

53

50

2,058

71.0

1.60

1.72

Mar.

41

46

48

42

*39

41

45

53

68

65

64

60

57

84

102

107

99

75

78

68

59

60

60

78

68

71

71

74

71

71

69

2,034

65.6

1.47

1.70

Apr.

53

53

55

57

55

49

64

104

102

93

*102

83

61

59

50

75

59

51

49

45

41

38

38

37

36

33

33

31

21

36

1,663

55.4

1.24

1.39

May

32

29

47

36

32

27

72

56

53

53

42

40

39

42

44

37

30

31

32

35

*34

31

34

38

32

32

34

33

32

32

32

1,173

37.8

0.849

0.98

June

32

36

53

39

30

28

27

27

28

32

30

28

27

25

24

28

32

31

28

25

25

27

28

186

32

27

48

24

28

27

1,062

35.4

0.796

0.89

July

24

*32

55

33

62

44

55

39

199

163

107

83

69

141

77

68

68

56

47

47

130

93

94

75

61

54

54

50

47

37

29

2,193

70.7

1.59

1.83

Aug.

27

27

29

27

31

29

27

22

20

20

20

18

*25

21

20

18

17

19

23

29

29

27

23

18

17

17

15

15

22

23

40

715

23.1

0.519

0.60

Sept.

23

20

16

15

19

24

19

16

15

21

17

17

14

23

26

28

26

24

24

24

21

19

17

25

*26

22

21

23

20

19

624

20.8

0.467

0.52

Calendar year 1955: Max 379 Min 15 Mean 38.6 Cfsm 0.867 In. 11.79

Water year 1955-56: Max 379 Min 14 Mean 46.8 Cfsm 1.O5 In. 14.30

Peak discharge (base, 500 efs). Oct. 15 (11:30 p.m.) 513 cfs (4.74 ft); Feb. 7 (4 a.m.) 623 cfs 

(5.06 ft); June 24 (11:30 a.m.) 560 cfs (4.89 ft); July 9 (l2 m.) 309 cfs (3.98 ft). 

* Discharge measurement made on this day.
238 DELAWARE RIVER BASIN

Lehigh River at Bethlehem, Pa.

dgPa Rpi'Vr ^ T21 ' 55 "' on left bank L 650 " upstream from Minsi Trail 

dge at Bethlehem, Northampton County, and 2,400 ft downstream from Monocacy Creek.

Drainage area.--1.279 sq mi.

Records availably.--September 1902 to February 1905, April 1909 to December 1913, October 

1918 to September 1921, and October 1928 to September 1956 in reports of Geological 

Survey. September 1902 to February 1905 and April 1909 to September 1941 (including 

revised records for water year 1921) in reports of Pennsylvania Department of Forests 

and Waters.

Gage. Water-stage recorder. Datura of gage is 208.45 ft above mean sea level, datum of 

1929. Prior to October 1928, chain gage at New Street Bridge, 4,130 ft upstream, at 

datum 2.49 ft higher.

Average discharge.--27 years (1929-56), 2,394 cfs.

Extremes. Maximum discharge during year, 30,900 cfs Oct. 16 (gage height, 11.48 ft); minimum, 468 cfs Jan. 8 (gage height, 2.22 ft).

1902-5, 1909-56: Maximum discharge, 92,000 cfs May 23, 1942 (gage height, 23.47 ft, 

from floodmark), from rating curve extended above 48,000 cfs; minimum observed, 160 cfs 

Oct. 15, 1910.

Flood of Feb. 28, 1902, reached a stage of 24.9 ft, from floodmark, former site and 

datum (discharge, about 88,000 cfs).

Revisions.--The maximum discharge for the water year 1919 has been revised to 16,800 

..cfs Mar. 9, 1919 (gage height, 9.0 ft), superseding figure published in WSP 501.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Some regulation at low flow by mills above station. Some regulation by Wild Creek 

Reservoir (see p. 277). Records of chemical analyses for the water year 1956 are given

Revisions (water years 1. WSP 261: 1903-5. WSP 321: 1910-11. WSP 1051: Drainage area. 

WSP 1141:1929-34(M). See also Records available. Revised figures of discharge, in 

cubic feet per second, for the water years 1903, 1920-21, 1929, and 1933, superseding 

those published in WSP 261, 501, 521, 681 and 741, are given herein. Records for water 

year 1921, published in report of Water Supply Commission of Pennsylvania, supersede 

those published in WSP 521, except for Dec. 21, 1920.

Date

1903

Mar. 19

20

21

July 24

25

26

27

28

Discharge

2,470

2,470

2,470

1,900

1,700

1,600

1,500

1,450

Date

1903 -Con.

July 29

30

1920

July 18

Dec. 21

Discharge

1,450

1,600

525

3,130

Date

1929

Sept. 9

1933

Aug. 23

24-

25

26

27

Discharge

1,240

7,380

47,900

25,000

12,100

8,460

Month

July 1920. .......................... 

Water year 1919-20 ................

Water year 1920-21. ...............

Maximum

25,800

3,270 

18,500

9,950

12,700

47 900

47,900

Minimum

605

432 

432

432

425

539

539

550

Mean

5 730

2,710

1,140 

2,420

2,160

2,250

2,790

Per square 

mile

2.21

_

23.88

1.76

2.18

Runoff In 

Inches

5.37

29.97

-

1.76

23.91

29.67

t Partly estimated.
DELAWARE RIVER BASIN 239

Lehigh River at Bethlehem, Pa. Continued

Rating table, water year 1955-56 (gage height, In feet,

and discharge. In cubic feet per second)

(Shifting-control method used June 14-23, 25-27,

June 29 to July 5)

2.5 

3.0 

3.5 

4.0

680

1,180

1,910

2,890

5.0

7.0

10.8

5,260

12,500

28,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7 

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,950 

1,750

1,550

1,400

*1.250

2,090

4,640 

4,710

3,960 

3,400

2,990

2,630

2,390

3,000

15,700

27.700

19,900

*12,500

8,990

6,810

5,700

4,840

4,200

3,840

3,620

3,400

3,090

2,890

2,690

6,010 

9 ,560

179,130

5,778

4.52

5.21

Nov.

6,980 

5,400

4,580

4,200

3,840

3,510

3,200 

3,090

2,890 

2,690

3,400

3,200

2,890

2,890

3,090

4,140

7,500

6,000

4,980

4,450

3,960

3,620

3,300

3,200

2,990

2,790

2,590

2,470

*2,250

2,040

112,130

3,738

2.92

3.26

Dec.

1,980 

1,910

1,880

1,880

1,910

1,790

1,670 

1,580

1,560 

1,490

1,340

1,360

1,330

1,260

1,300

1,100

1,120

1,180

1,240

1,050

895

895

935

1,070

1,220

1,220

1,080

*955

945

1,010 

905

41,060

1,325

1.04

1.19

Jan.

915 

895

895

965

996

965

935 

714

789 

996

1,180

1,230

1.550

1,110

986

955

1,010

827

818

885

856

818

846

716

707

716

707

725

745

1,150

*1,260

28,620

923

0.722

0.83

Feb.

960 

920

1,050"

1,000

920

1,100

4,650 

5,660

2,940 

2,210

2,170

3,300

2,670

2,130

1,950

2,110

1,970

3,080

5,010

5,750

5,090

2,550

2,270

2,060

2,190

5,090

2,790

2,790

2,610

70,970

2,447

1.91

2.06

Mar.

2.170 

~2,19T)

2,470

2,470

*2,410

2,600

2,900 

5,800

5,400 

5,66o

4,700

4,600

4,000

4,100

4,000

5,800

5,500

5,200

3,000

2,800

2,700

2,600

2,800

3,100

5,000

2,900

2,900

3,000

2,890

2 , 890

2,790

100,680

3,248

2.54

2.95

Apr.

2.590 

2,590

2,690

3,090

4,080

4,080

4,710 

6.640

*6,000 

6,000

6,000

5,700

5,400

4,980

4,450

4,980

4,980

4,200

3,730

3,400

3,090

2,990

3,300

3,400

3,090

2,990

3,090

2,890

2,990

6.210

124,550

4,144

5.24

3.61

May

5,700 

4,716

5,120

4,450

3,960

3,840

5,400 

5,120

4,450 

3,960

3,750

5,400

5,510

5,300

2,990

2,690

2,550

2,410

2,410

2,290

2,150

*2,020

2,000

2,170

1,910

1,750

1,790

2,080

1,910

1,700

 * 

97,140

5,134

2.45

2.82

June

1,970 

2,130

*4.960

4,580

5,750

5,500

2,890 

2,650

2,570 

2,310

2,270

2,040

1,840

1,740

1,590

1,500

1,610

1,560

1,430

1,330

1,540

1,430

1,530

2,500

1,700

1,580

1,590

1,820

1,500

1.510

63,900

2,130

1.67

1.86

July

1,200 

1.190

1,560

1,650

2,800

3,700

3,500 

2,800

5.650 

4,980

3,730

2,990

2,690

3,090

2,550

2,250

2,040

1,750

1,580

1,550

3,320

3,090

2,530

2,150

2,000

1,840

2,110

1,980

1,860

1,590

1,440

77,120

2,488

1.95

2.24

Aug.

1,360 

1,290

1,220

1,140

1,240

1,300

1,400 

1,236

1,120 

1,070

1,010

935

955

*1,120

1,020

945

945

875

865

856

1,250

1,280

1,050

945

856

818

798

798

8Z7 

856

1,220

52,574

1,051

0.822

0.95

Sept.

1,220 

1,180

1,010

905

856

952

3.940 

2,570

1,820 

1,470

1,300

1,220

1,140

1.070

1,100

1,300

1,240

1,250

1,150

1,150

1,230

1,110

1,060

1,350

1,520

*1,290

1,220

1,560

1,330

1,240

40,533

1,351

1.06

1.18

Calendar year 1955: Max 70,400 Min 436 Mean 2,621 Cfsm 2.05 In. 27.82

Water year 1955-56: Max 27.70O Min 707 Mean 2,645 Cfsm 2.07 In. 28.15

Peak discharge (base. 11.000 cfs).--0ct. 16 (4:50 a.m.) 50,900 cfs (11.48 ft). 

* Discharge measurement made on this day. 

Note. No gage-height record Oct. 1-4, Feb. 1-7, Mar. 6-28, July 4-9j discharge estimated on basis 

of recorded range In stage, weather records, and records for nearby stations.
240 DELAWARE RIVER BASIN

Musconetcong River at outlet of Lake Hopatcong, N. J.

Location.--Lat 40°55'00", long 74°39'55", on left bank at highway bridge, 300 ft downstream from Lake Hopatcong Dam in Landing, Morris County.

Drainage area. 25.6 sq mi.

Records available.--July 1928 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 904.99 ft above mean 

sea level (New Jersey Geological Survey benchmark).

Average discharge.--28 years, 44.8 cfs (unadjusted).

Extremes. Maximum discharge during year, 357 cfs Oct. 3 (gage height, 2.79 ft); minimum 

daily, 0.2 cfs Feb. 13.

1928-56: Maximum discharge, 795 cfs Aug. 20, 1955 (gage height, 3.85 ft), from 

rating curve extended above 300 cfs by logarithmic plotting; minimum daily, 0.1 cfs 

for many days during March 1940.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by Lake Hopatcong (see p. 277).

Cooperation. Water-stage recorder operated by employee of Morris Canal & Banking Co. 

Revisions (water years).--WSP 781: 1928(M), drainage area. WSP 1051: 1944-45.

Rating table, water year 1955-56 (gage height. In feet, 

and discharge, In cubic feet per second)

0.2 

2.0 

4.3 2.0 

2.8

160

360

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Cf sm

In.

Oct.

348 

336

345

213

262

275

268

262

260

270

268

258

250

205

a!60

a!60 

al70

al30

65

80

86

138

184

21O

215

210

232

248

250

210

132

6,750

218

-

-

Nov.

210 

245

240

235

230

240

222

186

13O

108

128

138

138

128

116

114 

105

102

107

111

104

100

97

95

95

95

94

93

74

50

4,13O

138

-

-

Dec.

50 

50

44

40

36

33

29

24

21

20

18

17

17

17

17

14 

11

11

11

11

11

11

11

11

11

11

11

11

11

10

To

610

19.7

-

-

Jan.

10 

1O

10

10

10

10

10

1O

10

1O

9.4

10

10

10

10

10

11

11

11

11

11

a55

82

50

50

49

25

13

13

12

13

576.4

18.6

-

-

Feb.

13 

13

13

13

13

11

10

10

11

11

10

4.4

.2

5TT

7.8

7.8 

8.

8.

8.

8.

8.

8.

8.4

8.8

8.8

8.8

8.8

8.8

8.8

264.6

9.12

-

-

Mar.

7.8 

7.2

7.2

7.2

6.9

6.6

6.6

6.6

5.2

6.O

6.0

6.0

5.8

5.8

5.5

5.0 

5.8

5.5

5.2

5.2

5.0

5.0

5.0

5.0

5.0

5.0

4.7

JL5

4.5

*4.5

4.7

176.0

5.68

-

-

Apr.

4.7 

4.7

5.0

5.0

5.0

5.0

5.0

5.0

6.6

9.6

9.6

8.8

8.4

8.4

8.1

8.1 

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.1

8.4

8.1

8.1

8.1

8.4

221.0

7.37

-

-

May

8.4 

8.4

8.8

8.4

8.4

8.4

8.4

8.1

8.1

8.4

8.4

8.4

8.4

8.4

6.3

e5.8

5.8

6.0

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.8

6.0

6.6

217.6

7.02

-

-

June

fit

5.5

5.5

5.8

*5.8

5.8

5.2

5.8

5.8

5.5

5.2

5.2

5.2

5.2

5.2 

5.0

5.0

4.7

477

4.7

4.7

5.0

5.2

5.2

5.2

5.2

5.2

5.5

5.5

159.0

5.30

-

"

July

5.8

578

5.8

6.0

9.6

8.1

8.4

8.1

17

35

40

40

42

51

49

46 

43

36

3O

27

36

32

29

26

24

26

29

29

26

20

15

805.6

26 .O

-

~

Aug.

13 

13

10

8.8

8.4

11

13

11

9.6

8.4

8.1

7.8

7.5

7.5

7.2

6.9 

6.9

6.9

7.2

6.9

8.4

8.4

7.8

7.5

7.2

7.2

4^3

6.9

7.2

6.9

ii

266.9

8.61

-

"

sept.

21 

28

37

36

34

36

44

38

31

29

30

31

29

29

31

31 

30

30

30

30

29

29

29

29

29

29

29

27

27

27

919

30.6

-

-

Calendar year 1955: Max 731 Mln 5.5 Mean 70.9 Cfsm - In. -

Water year 1955-56: Max 348 Mln 0.2 Mean 41.2 Cfsm - In. -

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range In stage and fragmentary 

gage-height record for Jan. 22.
DELAWARE RIVER BASIN 241

Musconetcong River near Hackettstown, N. J.

Location. Lat 40°53'10", long 74°48'00", on right bank 75 ft upstream from Saxton Falls 

flam, half a mile upstream from Delaware, Lackawanna and Western Railroad bridge, and 

3 miles northeast of Hackettstown, Warren County.

Drainage area. 70.0 sq mi.

Records available. September 1921 to September 1956.

Gage. Water-stage recorder above concrete dam. Datum of gage is 630.93 ft above mean sea 

level (New Jersey Geological Survey benchmark). Prior to Aug. 21, 1923, staff gage and 

Aug. 21, 1923, to July 19, 1938, water-stage recorder, at site 2,000 ft downstream at 

datum 26.97 ft lower.

Average discharge. 35 years, 120 cfs (unadjusted).

Extremes. Maximum discharge during year, 1,060 cfs Oct. 15 (gage height, 2.86 ft), from 

rating curve extended above 600 cfs by logarithmic plotting; minimum dally, 23 cfs 

Aug. 17.

1921-56: Maximum discharge, 2,170 cfs Aug. 19, 1955 (gage height, 3.97 ft), from 

rating curve extended above 600 cfs by logarithmic plotting; no flow part of Sept. 6, 

1951, when water was below spillway, waste gate was closed, and no flow through 

swimming pool.

Remarks. Records good. Figures of discharge represent combined flow over dam and through 

swimming pool. Flow regulated by Lake Hopatcong (see p. 277).

Cooperation. Water-stage recorder operated by employee of Morris Canal & Banking Co. 

Revisions (water years). WSP 1051: 1944-45.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

344

362

362

356

282

310

356

368

374

350

344

338

326

392

1.010

974

837

646

497

368

299

282

304

332

350

344

326

332

332

374

427

12,898

416

-

-

Nov.

338

344

350

368

356

338

338

321

299

321

374 362"

332

304

321

338

374

304

299

304

294

272

255

244

238

234

229

223

208 lee

9,070

302

-

-

Dec.

170

15S

154

154

174

183

169

157

141

113

89

81

63

57

54

45

45

48

45

43

37

37

40

45

57

63

54

48

48

48

45

2,665

86.0

-

-

Jan.

45

43

43

43

43

43

37

32

37

57

70

81

85

67

60

57

54

48

51

51

48

48

43

35

32

35

35

35

35

40

45

1,478

47.7

-

-

Feb.

40

40

54

51

45

51

117

101

97

109

113

117

113

101

101

112

108

132

156

14S

*132

112

1O8

96

116

140

124

112

100

 

2,946

102

-

-

Mar.

92 9?

92

92

92

92

96

116

124

112

108

1O8

103

106

138

142

126

138

122

138

146

138

106

110

102

98

102

106

106

*110

122

3,475

112

-

-

Apr.

126

134

130

142

162

162

215

286

270

292

308

275

236

215

195

220

215

1S5

162

15 O

13S

122

126

122

118

114

110

86

82

116

5,214

174

-

-

May

117

105

121

117

105

97

*145

133

113

109

121

113

93

85

77

74

67

67

63

60

54

51

51

60

57

51

54

60

54

54

57

2,588

83.5

-

-

June

57

67

129

1O9

74

6O

*53

45

40

40

40

40

40

37

35

35

32

30

28

25.

28

28

28

30

37

30

32

43

37

32

1,341

44.7

-

-

July

32

28

35

37

54

74

67

51

57

93

149

*14T

125

145

149

129

121

105

93

85

101

117

101

89

77

70

77

85

77

70

60

2,694

86.9

-

-

Aug.

51

48

45

37

37

43

54

4S

35

30

28

25

30

32

30

25

23

32

43

37

51

*51

45

40

40

35

35

32

37

37

130

1,266

40.8

-

-

Sept.

125

89

133

117

85

70

178

161

125

89

*75

70

70

67

6f

89

89

85

74

74

74

70

70

77

77

77

74

74

74

74

2,673

89.1

-

-

Calendar year 1955 : Max 1,760 Min 12 Mean 161 Cfsm - In. -

Water year 1955-56 : Max 1,010 Mln 23 Mean 132 Cfsm - In. -

* Discharge measurement made on this day.
242 DELAWARE RIVER BASIN

Musoonetoong River near Bloomsbury, N. J.

long 75°03'40", on right bank just downstream from highway | miles upstream from

Location. Lat 40°40'20

bridge, lj miles upstream, from Bloomsbury, Hunterdon County, and 

mouth.

Drainage area. 143 sq mi.

Records available.--July 1903 to March 1907, July 1921 to September 1956.

Gage. Water-stage recorder. Concrete control since Sept. 29, 1932. Datum of gage is 

2~74.83 ft above mean sea level, datum of 1929. Prior to Apr. 12, 1904, staff gage and 

Apr. 12, 1904, to Mar. 31, 1907, chain gage, at bridge 15 ft upstream at different 

datum. July 26 to Sept. 21, 1921, staff gage at bridge at present datum.

Average discharge.--38 years (1903-6, 1921-56), 230 cfs (unadjusted).

Extremes.--Maximum discharge during year, 2,490 cfs Oct. 14 (gage height, 5.70 ft); minimum, 23 cfs Aug. 17; minimum daily, 70 cfs Aug. 17, 18.

1903-7, 1921-56; Maximum discharge, 6,960 cfs Oct. 10, 1903 (gage height, 8.00 ft, 

datum then in use, from graph based on gage readings), from rating curve extended above 

1,800 cfs on basis of slope-area determination at gage height 6.95 ft; minimum, 8.1 cfs 

Aug. 2, 1955; minimum daily, 31 cfs July 23, Aug. 3, 1955.

Remarks.--Records good. Flow regulated by Lake Hopatcong (see p. 277). Diurnal fluctuatlon caused by small powerplants above station.

Revisions (water years).--WSP 521: Drainage area. WSP 1051: 1944-45. WSP 1382: 1904-6, 

1922, 1923-29(M), 1931(M), 1933-34(M), 1936(M), 1940, 1942(M), 1944-45(M), 1951-52(M).

Rating table, water year 1955-56 (gage height, in feet, and discharge,

in cubic feet per second) 

(Stage-discharge relation affected by ice Dec. 21, 22)

1.2 

1.5 

2.0

61

135

301

3.0 

4.7

715

1,650

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

380

399

399

399

357

*392

423 

455

435

407

388

384

376

836

1,570

1.610

1,360

936

756

589

504

455

451

475

479

483

451

447

451 

522

564

18,133

585

-

"

Nov.

471

439

455

475

467

443

439 

439

399

*411

531

475

443

415

407

518

504

439

407

411

403

388

365

353

342

334

327

331

308 

290

12,429

414

-

-

Dec.

272

2BT

251

251

254

269

254 

244

 230

217

191

181

171

159

159

144

141

141

144

122

115

120

127

138

150

147

141

141

135 

127

141

5,531

178

-

"

Jan.

124

116

122

122

122

122

119

96

122

147

159

178

184

162

147

141

138

127

127

132

122

124

124

108

106

106

93

93

98

165

4,094

132

-

"

Feb.

173" 122

283

168

210

414

598 

276

234

223

230

265

227

207

204

210

207

375

349

294

262

234

223

214

244

283

248

248

220

7,445

257

-

-

Mar.

20O

2~I7J

217

207

*200

2OO

207 

276

269

234

230

234

223

305

30T

297

269

279

258

269

279

287

272

279

251

258

279

279

279 

294

297

7,939

256

-

-

Apr.

297

308

301

312

327

323

419

531

548

572

564

518

471

443

423

491

455

403

376

346

327

308

305

297

287

287

272

251

240 

290

11,292

376

-

-

May

*269

258

297

272

258

240

m276

265

269

265

248

230

217

210

197

194

194

187

178

171

175

181

171

159

171

178

162 

187

159

6,934

224

-

"

June

165

175

323

244

194

165

156 

150

141

184

191

144

141

127

124

122

122

113

108

1OO

108

111

103

119

108

108

119

135

116 

108

4,324

144

-

-

July

98

96

*116

119

156

159

150 

130

162

165

194

204

194

204

214

204

187

165

150

144

187

184

165

150

144

127

171

147

141 

127

119

4,873

157

-

-

Aug.

108

100

*93

93

88

93

98 

100

93

88

81

76

83

88

76

79

7O

70

81

88

122

111

96

88

83

81

79

76

83 

74

1 159^O 

2,798

9O.3

-

"

Sept.

24O

165

171

175

171

153

*248 

227

187

156

132

127

122

116

115

141

144

135

13O

124

122

116

113

122

122

116

113

116

116 

113

4,346

145

-

"

Calendar year 1955: Max 2,890 Min 31 Mean 258 Cfsm - In. -

Water year 1955-56: Max 1,610 Min 70 Mean 246 Cfsm - In. -

Peak discharge (base, l.OOO cfs). Oct. 14 (12 p.m.) 2,490 efs (5.70 ft); Feb. 6 (12 p.m.) 1,200 

cfs (3.94 ft).

* Discharge measurement made on this day.
DELAWARE RIVER BASIN 243

Delaware River at Riegelsville, N. J.

Location. Lat 40°35'36", long 75°11'17", on left bank 20 ft upstream from suspension

bridge at Riegelsville, Warren County, and 600 ft upstream from Musconetcong River. Records include flow of Musconetcong River.

Drainage area. 6.328 sq mi (includes that of Musconetcong River).

Records available. July 1906 to September 1956 (after September 1931, flow of Musconetcong 

River included).

Gage. Water-stage recorder. Datum of gage is 125.12 ft above mean sea level, datum of 

TT929. Prior to Feb. 27, 1924, chain gage and/or staff gage at bridge 20 ft downstream 

at same datum.

Average discharge.--50 years, 11,280 cfs, including flow of Musconetcong River after 

Sept. 30, 1931 (unadjusted).

Extremes. Maximum discharge during year, 133,000 cfs Oct. 16 (gage height, 23.80 ft); minimum, 3,180 cfs Aug. 28 (gage height, 2.77 ft).

1906-56: Maximum discharge, 340,000 cfs Aug. 19, 1955 (gage height, 38.85 ft, from 

floodmark), from rating curve extended above 160,000 cfs on basis of flood-routing study 

and slope-area determination of peak flow; minimum, not including flow in canal, 870 cfs 

Sept. 20, 1908 (gage height, 1.55 ft).

Flood of Oct. 10, 1903, reached a stage of 35.9 ft, from floodmark (discharge, 

275,000 cfs).

Revisions. The maximum discharge for the water year 1936 has been revised to 237,000 

cfs Mar. 19, 1936 (gage height, 32.45 ft), superseding figure published in WSP 801.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Flow regulated by Lakes Hopatcong and Wallenpaupack, and by Toronto, Cliff Lake, 

Swinging Bridge. Neversink and Pepacton Reservoirs (see p. 276). Diversion from Neversink Reservoir (see p. 280) and to Delaware Division Canal (see diversion below and 

see p.610 for discharge measurements).

Revisions (water years). WSP 641: 1926. WSP 951: Drainage area. Revised figures of 

discharge, in cubic feet per second, for the water years 1918-20, 1936, and 1948, superseding those published in WSP 471, 501, 801, and 1111, are given herewith:

Date

1918

Jan. 12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Feb. 1

2

3

4

5

6

7

8

9

10

Dec. 23

24

25

26

27

28

1919

Jan. 5

6

7

8

9

10

Discharge

5,000

5,000

5,000

5,000

3,500

3,500

3,500

3,500

3,500

3,000

3,000

3,000

3,000

3,000

2,800

2,800

2,800

2,800

2,800

2,800

2,500

2,500

2,500

2,500

2,500

2,500

2,500

2,500

2,500

3,000

15,000

20,000

26,000

22,000

20,000

17,000

20,000

16,000

13,000

11,000

9,500

8,500

Date

1919-Con.

Jan. 11

June 19

20

21

22

23

24

25

27

28

29

30

July 1

2

3

4

5

Dec. 18

19

20

21

22

23

1920

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Mar. 7

8

Discharge

S,300

,000

,500

,800

,500

,000

,800

,600

,000

,200

,200

,700

,500

,000

,500

,500

,300

1 ,000

,500

,500

,500

,500

,500

,000

,000

,000

,000

,000

,000

,000

,000

,000

,000

,800

3,800

3,800

3,800

3,800

3,800

3,800

20,000

17,000

Date

1920-Con.

Mar. 9

10

11

12

13

14

1936

Mar. 19

Aug. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

27

28

29

30

31

Sept. 1

2

3

4

5

6

7

Discharge

20,000

20,000

25,000

30,000

60,000

80,000

228,000

2,800

2,800

2,400

2,010

2,320

2,830

2,810

2,810

2,810

2,420

2,440

3,030

3,210

3,160

3,320

3,480

2,790

2,440

2,340

2,210

2,400

2,810

2,440

4,830

3,900

3,650

3,720

4,000

4,390

4,420

3,740

3,250

3,030

2,730

2,560

Date

1936-Con.

Sept. 8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

1948

Aug. 7

8

9

10

12

13

14

22

23

24

25

26

27

28

29

30

31

Discharge

2,400

2,460

2,850

3,320

3,250

3,180

2,700

2,120

2,400

2,810

2,580

2,400

2,660

2,480

2,140

2,440

2,460

2,340

2,270

2,160

1,940

1,850

2,030

8,300

7,400

6,000

4,300

7,400

6,600

5,900

8,000

6,600

5,900

5,600

5,100

4,600

4,200

3,700

3,500

3,200

Month

Calendar year 1919. ........................

Cfs-days

_

-

_

_

Maximum

66,800

36,300

Minimum

1,420

2,730

Mean

3,020

9,760

11,000
244 DELAWARE RIVER BASIN 

Delaware River at Riegelsville, N. J. Continued

Revised figures of monthly discharge, in cubic feet per second, 3.918-20, 

1936, 1948--Continued

Month

Calendar year 1920. .........................

Calendar year 1936. .........................

Calendar year 1948. .........................

Cfs-days

_

_

-

100,080

81,360

4,921,260

4,544,290

170,280

4,269,910

Maximum

4,420

102,000

102,000

102,000

228,000

6,700

4,420

228,000

228,000

8,580

113,800

113,800

Minimum

3,050

2,340

2,250

2,250

11,200

2,010

1,850

1,850

1,850

3,200

2,150

2,060

Mean

3,920

41,900

12,600

13,700

58,250

3,228

2,710

13,450

12,420

5,493

12,090

11,670

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

2.8 

4.0 

8.0

3,250

6,600

22,200

12.0

17.0

21.6

42,300

74,000

112,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

(t)

Oct.

8,680

9,460

8,880

8,360

7,520

8,260

26,100

32,600

25,800

21,100

18,100

15,200

* 13, 100

14,400

50,400

106,000

*112,000

70,800

49,400

37,800

30,700

25,500

21,600

18,900

18,300

18,000

16,500

14,800

13,700

17,000

41,100

880,060

28,390

-

-

60

Nov.

45,500

32,600

26,200

24,000

24,600

21,700

18,600

18,400

17,200

15,900

17,700

17,900

16,600

16,100

19,300

22,500

36,000

34,400

27,800

24,400

21,400

20,000

17,900

16,600

14,900

14,800

13,600

12,200

12,100

11,500

632,400

21,080

-

-

60

Dec.

11,000

10,600

10,300

9,880

9,760

11,000

11,100

10,000

9,500

9,340

8,510

7,400

7,520

7,840

7,690

6,810

6,630

6,530

6,600

4,850

4.740

4,910

4,830

5,370

6,300

6,630

5,400

5,110

6,080

6,140

5,430

233,800

7,542

-

-

60

Jan.

5,280

5,310

4,740

4,970

6,270

6,110

5,800

4,770

4,020

5,110

7 ,400

8,060

10,100

12,000

10,200

8,720

8,300

7,780

7,080

7,200

6,500

6,050

5,830

4,990

5,670

5,670

5,140

5,080

5,340

6,050

5,920

201,460

6,499

_

_

60

Feb.

6,300

6,690

7,870

7,020

6,240

7,590

15,600

13,100

11,700

10,000

10,000

12,500

12,200

12,600

11,500

11,500

11,500

13,600

18,800

16,900

15,700

13,100

11,000

10,200

10,200

13,500

17,500

19,200

16,500

______

-----

350,110

12,070

_

_

50

Mar.

13,800

12,700

13,100

14,700

16,500

16,400

18,800

28,200

44,400

38,200

28,600

25,600

24,100

23,300

22,200

20,400

18,400

16,100

14,700

14,400

13,900

13,700

14,100

14,700

14,000

12,900

13,400

* 13, 500

13,300

13,700

13,000

574,800

18,540

_

_

30

Apr.

12,500

12,500

14,500

18,000

30,400

50,100

49,400

53,200

44,300

38 , 200

36,600

35,800

34,000

32,700

28,800

30,000

38 , 900

44,900

37 , 000

33,200

26 , 000

22,500

22,300

25,600

25,200

22,800

22,700

22,000

21,500

38 , 400

924,000

30,800

_

_

40

May

45,900

36,400

332,000

330,000

327,000

a24,000

325,000

26,600

22,700

20,100

18,700

17,300

15,900

15,400

14,600

13,900

13,500

12,700

12,600

12,500

11,500

11,400

10,600

10,400

9,620

8,920

8,480

9,000

10,000

9,660

8,420

544,800

17,570

_

_

60

Calendar year 1955: Max 221,000 Min 1,500 Mean 13,200 Cfsm -

June

9,460

12,800

20,600

29,200

23,600

18,600

15,800

13,700

12,000

10,800

11,600

10,800

9,700

8,680

8,100

7,520

6,870

6,240

5,670

5,220

5,020

5,140

5,580

7,720

6,370

5,980

5,920

6,210

5,580

4,830

305,310

10,180

_

_

60

July

4,340

4,450

*5,200

5,220

7,600

9,850

10,600

9,730

17,500

16,700

12,300

10,000

9,300

11,200

10,700

9,300

8,220

7,080

6,270

6,080

8,760

9,970

8,880

8,300

7,600

6,600

6,600

6,990

6,470

5,460

5,140

262,410

8,465

_

_

65

In. -

Aug.

5,020

4,910

4,720

4,500

4,450

4,500

4,770

4,690

4,360

4,150

3,970

3,770

3,720

3,970

3,940

3,770

3,740

3,620

3,530

3,500

4,280

4,850

4,230

3,800

3,550

3,360

3,270

5,250

3,430

3,410

4,360

125,390

4,045

_

_

65

Sept.

4,910

4,970

5,020

4,850

4,070

*5,970

9,800

8,360

6,110

5,020

4,580

4,390

4,150

4,050

3,970

4,420

4,610

5,140

6,440

6,170

5,280

5,890

5,760

5,370

5,890

10,300

7 690

6.750

6,050

5,460

169,440

5,648

_

_

65

Water year 1955-56: Max 112,000 Min 3,250 Mean 14,220 Cfsm - In. -

(base, 48,000 cfs). Oct. 16 (12 p.m.) 133,000 cfs (23.80 ft); Oct. 31 (11 to 

fs (13.85 ft); Apr. 8 (l p.m.) 55,400 cfs (14.18 ft); May 1 (l a.m.) 49,000 efs

Peak discharge 

12 p.m. ) 53,200 of: 

(13.17 ft).
DELAWARE RIVER BASIN 245

Tohlekon Creek near Pipersvllle, Pa.

Location. Lat 40°26'00", long 75°07'00", on right bank at highway bridge, 1.5 miles 

northeast of Pipersvllle, Bucks County, and 4.5 miles upstream from mouth.

Drainage area.--97.4 sq ml.

Records available. July 1935 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 258.96 ft above mean sea level, datum of 

1929 (tentative adjustment).

Average discharge. 21 years, 146 cfs.

Extremes. Maximum discharge during year, 9,500 cfs Oct. 15 (gage height, 8.90 ft), from 

rating curve extended as explained below; minimum, 0.6 cfs Aug. 18 (gage height, 

0.54 ft).

1935-56: Maximum discharge, 16,000 cfs Aug. 18, 1955 (gage height, 11.26 ft), from 

rating curve extended above 3,600 cfs on basis of slope-area determination at gage 

height 10.48 ft; minimum, 0.05 cfs Sept. 29, 1941; minimum daily, 0.1 cfs Sept. 24, 

29, Oct. 6, 1941.

Revisions.--The figures of maximum and minimum discharge for some water years have 

been revised, as shown in the following table. They supersede figures published in 

the water-supply papers indicated.

WSP

801 

851 

871 

891

Water 

year

1936 

1938

1939 

1940

Maximum

Date

June 13, 1936 

Sept. 21, 1938 

July 30, 1939 

Mar. 15, 1940

Discharge 

(cfs)

6,600 

10,000 

6,600 

6,600

Gage height 

(feet)

7.60 

9.11 

7.60 

7.64

Minimum

Date

Aug. 3, 1936

Discharge 

(cfs)

0.8

Gage height 

(feet)

0.58

Remarks. Records good except those for periods of ice effect, which are fair. Regulation

at low flow by mills above station. 

Revisions. Revised figures of discharge, in cubic feet per second, for the water year

1936, superseding those published in WSP 801, are given herewith:

Date

1936

July 13

14

15

16

17

18

19

2O

21

22

23

24

25

27

28

29

30

31

Discharge

17

10

8.1

.7

.1

.4

.6

.5

.0

.0

.4

.2

.7

.6

.4

.6

.6

.0

Date

1936-con.

Aug. 1

2

3

4

5

6

9

LO

11

12

13

14

15

16

17

18

19

20

Discharge

1.0

1.0

2.7

1.0

.9

3.8

1.1

1.0

2.8

1.0

2.7

1.0

1.0

1.0

10

5.0

2.7

1.0

Date

1936-Con.

Aug. 21

22

23

24

25

26

27

28

29

30

31

Sept. 1

2

3

4

5

6

7

Discharge

2.4

1.1

1.1

6.9

1.5

17

5.7

6.6

12

6.6

8.6

5.4

4.7

4.6

3.6

3.1

1.8

3.8

Date

1936-Con.

Sept. 8

9

11

13

14

15

16

17

18

19

20

21

22

25

26

30

Discharge

5.2

2.7

3.3

1.1

4.2

1.4

2.5

1.4

3.7

5.2

1.1

1.0

5.8

3.3

3.3

2.8

Month

Calendar year 1936. .............

Cfs-days

60,995.8

Maximum

3,500

Minimum

.9

Mean

9 37

199

167

Per square

1.72

Runoff In 

Inches

23.29

505690 O - 59 - 17
246 DELAWARE RIVER BASIN

Tohickon Creek near Plpersvllle, Pa. Continued

Rating tables, water year 1955-56, except periods of Ice effect 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 18 Feb. 19 to Sept. 30

1.1

1.3

1.9 

2.3

8.0

15

27

60

116

230

2.7 

3.0 

4.0 

5.0 

6.7

413

610

1,400

2,430

4,950 1.1 

1.3

0.7

1.3

2.8

7.0

13

25

1.6 

2.0 

2.5 

3.0 

4.5

55

135

309

610

1,880

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

14

12

11

> 9.8

8.9

28

74

114

149

80

51

35

26

1,490

4.810

2,010

683

299 

170

»116

95

78

66

60

63

60

54

45

42 

216

393

11,367.7

367

3.77

4.34

Nov.

145

95

76

68

60

54

48

51

52

48

254

2<34

112

95

89

172

245

116 

87

89

93

106

95

82

71

62

56

54

38

*36

2,853

95.1

0.976

1.09

Dec.

31

33

34

39

45

44

34

31

30

28

26

25

21

19

20

15

17

17 

14

13

12

11

12

14

16

17

14

*11

10

TT

11

675

21.8

0.224

0.26

Jan.

10

9.2

9.6

10

11

10

8^6

9.0

13

45

74

110

115

100

78

58

42

31 

27

28

24

21

20

16

13

11

10

9.2

11

190

540

1,663.6

53.7

0.551

0.64

Feb.

180

503

800

382

334

720

1,600

493

288

217

221

396

231

140

148

154

116

1.740 

1,120

343

191

110

88

70

132

348

196

559

366

12,186

420

4.31

4.65

Mar.

140

143

155

135

108

 97

222

1,600

665

243

185

228

175

1.870

998

260

180

160 

115

110

105

180

449

790

410

719

922

491

316

462

288

12,921

417

4.28

4.93

Apr.

178

132

112

106

99

79

367

1,110

1.290

876

*288

185

135

108

113

582

345

169 

130

101

86

74

74

75

62

62

79

67

ITS' 58 

1 lo

7,260

242

2.48

2.77

May

99

66

157

112

86

67

988

306

141

99

81

68

72

77

56

47

39

34 

31

28

24

22

21

21

*19

16

15

15

I3-

14

2,848

91.9

0.944

1.09

June

26

52

253

129

57

38

28

22

18

16

15

13

11

10

8.9

7.5

7.0

7.0 

6.3

5.6

6.0

7.5

7.3

13

18

15

18

22

15 

12

864.1

28.8

0.296

0.33

July

8.9

7.5

7.3

6.0

8.0

*11

10

9.4

12

28

24

14

8.9

8.6

7.6

4.9

6.0

5.6

TTs

20

54

29

20

15

13

13

11

19

31

16

437.5

14.1

0.145

0.17

Aug.

10

7.8

6.3

5.1

4.9

5.8

6.8

8.3

8.3

7.0

5.8

4.3

3.7

*3.3

2.8

2.2

2.2

it! 1.7

11

24

T?

12

8.0

6.0

4.7

4.3

6.5

11

14

219.3

7,07

0.073

0.08

Sept.

31

~35 119

18

12

10

34

30

18

12

9.1

7.8

8.0

7.5

5.8

6.8

7.0

6.3 

6.5

8.0

7.8

6.5

6.0

6.8

6.3

*6.0

6.3

8.9

9.1

12

467.5

15.6

0.160

0.18

Calendar year 1955: Max 6,090 Mln 0.4 Mean 140 Cfsm 1.44 In. 19.54

Water year 1955-56 : Max 4,810 Mln 0.9 Mean 147 Cfsm 1.51 In. 20.53

Peak discharge (base, 3.100 cfs). --Oct. 15 (4:30 p.m.) 9,500 ofs (8.90 ft); Feb. 18 (5 p.m.) 3,360

cfs (5.72 ft); Mar. 14 (1:30 p.m.) 3,740 cfs (5.93 ft).

* Discharge measurement made on this day..

Note . --Stage-discharge relation affected by ice Nov. 29 to Dec. 1, Dec. 10-14, 16, 17, Dec. 19 to 

Feb. 1, Feb. 3, 6, 7, 22-24, Mar. 1, 16-22, 25.
DELAWARE RIVER BASIN 247

Delaware & Raritan Canal at Kingston, N. J.

Location. Lat 40°22'24", long 74 0 37'08", on right bank at canal lock at Kingston, Middlesex County, 160 ft south of State Highway 27.

Records available. March 1947 to September 1956.

Gage. Two water-stage recorders and concrete control. Datum of gage is 40.00 ft below 

mean sea level, datum of 1929.

Remarks.--Records excellent except those for period of no gage-height record, which are 

good. The canal diverts water from Delaware River at Raven Rock and discharges into 

Raritan River at New Brunswick. Some water wasted to the Millstone River 500 ft above 

station.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

52

51

51

51

51

52

53

52

50

50

50

50

49

33

i2.

12

44

56

51

39

36

37 

39

39

39

41

41

48

55

41

42

1,355.2

43.7

_

-

Nov.

59Ss

55

54

54

53

53

53 

52

52

53

53

53

a*l

a53

a50

a42

a42

a42

a42

a45

a51 

aSl

aSL

a5L

a49

a47

a47

a47

a47

1,498

49.9

_

-

Dec.

47 

48

49

49

49

49

49

48 

49

50

50

51

52

53

S3

52

51

51

51

50

50

50 

50

49

49

50

51

51

51

50

50

1,552

50.1

-

Jan.

49 

M

47

50

51

51

52

52 

53

53

 5354

52

53

53

53

52

52

51

50

50

50 

50

50

SO

51

51

51

51

51

52

1,586

51.2

-

Feb.

51 

51

53

52

51

52

54

51

51

52

52

52

SO

49

49

50

37

25

S?

52

52 

48

44

45

45

43

41

41

1,398

48.2

.

-

Mar.

 *£ 4(T

40

40

53

61

61

60 

61

61

61

61

61

60

60

60

61

61

60

60

60

61 

62

IT

59

58

56

56

56

56

56

1,763

56.9

-

Apr.

56 

56

58

58

58

58

60

61 

61

60

61

61

60

60

59

60

60

61

60

60

60

60 

60

63

67

67

67

67

67

67

1,833

61.1

-

May

67 "67

67

67

68

68

71

70 

70

70

70

70

70

70

70

70

70

70

71

76

78

78 

78

76

76

76

76

76

76

76

76

2,234

72.1

-

June

76 

76

75

74

79

83

83

83 

83

84

85

85

85

85

84

84

83

82

82

82

82

83 

84

87

85

84

84

84

11

72

2,449

81.6

_

-

July

ft

70

90

88

85

85

85 

85

84

83

83

84

85

85

84

84

84

84

84

82

68 

79

84

84

84

83

83

82

82

84

2,576

83.1

-

Aug.

87 

14

79

79

79

80

83

82 

82

82

82

82

82

83

83

83

83

84

85

79

76

ft

82

83

83

83

82

82

83

83

2,531

81.6

_

-

Sept.

82

82

82

82

82

82

84

II

85

84

84

84

84

84

84

85

85

85

85

85

85 

85

83

82

82

79

79

79

li

2,492

83.1

-

Calendar year 1955: Max 102 Mln 0.2 Mean 58.1 Cfsm - In. -

Water year 1955-56: Max 94 Mln 0.2 Mean 63.6 Cfsm - In. -

a No gage-height record; discharge estimated on basis of recorded range In stage and gate-opening 

record at upstream end of canal lock.
248 DELAWARE RIVER BASIN

Delaware River at Trenton, N. J.

Location.--Lat 40°13'18", long 74°46 I 38", on left "bank 450 ft upstream from Calhoun

Street Bridge at Trenton, Mercer County, and half a mile upstream from Assunpink Creek.

Drainage area.--6.780 sq mi.

Records available.--February 1913 to September 1956.

Gage. Water-stage recorder. Datum of gage is 7.77 ft above mean sea level, datum of 

1929. Prior to Oct. 2, 1928, chain gage on downstream side of highway bridge at site 

500 ft downstream at same datum.

Average discharge.--43 years, 11,850 cfs (unadjusted).

Extremes.--Maximum discharge during year, 133,000 cfs Oct. 17 (gage height, 11.93 ft); 

minimum, 5,170 cfs Aug. 28 (gage height, 0.34 ft). Flow in Delaware & Raritan Canal 

not included.

1912-56: Maximum discharge, 329,000 cfs Aug. 20, 1955 (gage height, 20.83 ft, from 

high-water mark in gage house), from rating curve extended above 230,000 cfs by logarithmic plotting; minimum, 1,220 cfs Sept. 18, 19, 1932. Plow in Trenton power race 

and Delaware & Raritan Canal not included.

Flood of Oct. 11, 1903, reached a stage of about 20.7 ft (discharge estimated, 

295,000 cfs). Maximum stage known, 22.8 ft Mar. 8, 1904, from floodmark (ice jam).

Remarks.--Records excellent except those for period of ice effect, which are good. Flow 

regulated by Lakes Hopatcong and Wallenpaupack, and by Toronto, Cliff Lake, Swinging 

Bridge, Neversink, and Pepacton Reservoirs (see p. 276). Diversion from Neversink 

Reservoir and to Delaware £ Raritan Canal (see p. 280). Records of chemical analyses, 

suspended sediment loads, and water temperatures for the water year 1956 are given in 

W3P 1450.

Revisions (water years). WSP 951: Drainage area. WSP 1382: 1924, 1928.

Rating tables, water year 1955-56, except period of ice effect (gage height, 

in feet, and discharge, in cubic feet per second)

Oct. 1 to Nov Dec. 1 to Sept. 30

8.0 71,800

11.4 124,000

1.5 8,010

3.0 17,400

5.0 35,100

Disc .arge, in cubic feet per

0.35 3,200

1.0 5,500

2.0 10,300

4.0 

7.0

25,400

58,500

cond, water year October 1955 to Septe

Day

1

2

3

4

5

b

7

B

3

10

11

12

13

14

IE

ie

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

9,250

9,410

9,620

8,560

8,460

8,010

15,200

35,300

27,600

22,700

18,800

16,100

14,000

17,900

48,400

95,500

121,000

78,700

53,800

39,800

32 , 000

26,800

22,700

20,000

18,200

18,100

17,200

15,400

14,100 

15,100

32,300

890,010

28,710

40.7

Nov.

49,200

35,20O

27,600

*24,000

24,100

22,600

19,600

18,500

17,700

16,200

17,600

18,700

17,500

16,500

18,000

21,600

32 , 800

36,300

29,000

25,200

22,400

20,500

18,700

17,200

15,800

14,800

14,200

13,200

12.100 

12,100

648,900

21,630

40.4

Calendar year 1955:

Water year 1955-56:

Dec.

11,200

10,800

10,400

10,200

10 , 000

9,900

11.400

10,500

9,680

9,380

9,200

8,200

*7,200

8,050

7,850

7,350

7,350

6,750

6,700

b6,000

b5,000

b4,800

bS.OOO

b4.8OO

bS.OOO

b7,000

b6,200

b5,200

bS.BOO

b6,500

b5,600

240,010

7,742

41.1

Jan.

bS,400

b5,400

b5,000

b6, 000

6,220

6,600

6,220

5,820

4.780

4,820

6,800

8,200

9,500

11.600

11,100

9,620

8,150

8,400

7,700

7,300

7,000

6,600

5,940

5,580

5,660

5,820

5,620

5,220

5,300

D , OOIJ

8 , 800

212,520

6,855

40.5

Feb.

6.920

7,650

10,200

9,260

7,300

8,500

18,900

15,800

12,900

10, 900

10,400

12,300

13,200

12,500

12,300

11,700

11,700

15,900

22,200

18 , 500

16,500

14,600

12,000

10,900

10,500

12,600

16,700

19,900

18,600

381,330

13,150

40.0

Mar.

15,000

13,200

15.100

14,300

*16,000

16,400

17,900

28,000

42,500

42,200

30,900

26,900

24,800

28,300

26,300

21,900

19,600

17,500

15,700

14,800

14,400

14,200

14,800

16,90O

16,000

15,100

16,100

15,600

14,800

15,500

14,800

613,500

19,790

39.1

Apr.

13,500

12.900

14,100

16,000

23,200

44,600

52,100

56,300

52,000

42,400

38,000

37,000

35,200

32,900

29,700

29,900

36,300

46,300

39 , 500

32,400

27,200

23,300

2 1 , 600

24,600

25,800

23,200

22,400

22,300

20,900 

31,500

927,100

30 , 900

39.2

May

47.8OO

38,800

33,200

32,300

27,600

24,000

26,900

27,900

24,000

20,800

19,000

17,400

16,300

15,500

*14,700

13,800

13,400

12,700

12,300

12,500

11,700

11,200

10,800

10,300

9,800

9,100

8,600

8,600

9,320

9 , 850

9,050

559,220

18,040

40.8

June

8,550

10,800

18,000

27.500

25,000

19,600

16,200

14,000

12,300

11,000

11,100

10,800

10,000

8,950

8,350

7,750

7,200

6,700

5, 900

5,500

5,140

5, 100

5,300

7,400

6,800

6,140

5,900

6,220

5, 980

5,300

304,480

10,150

44.0

July

4,660

4.420

4,700

5,380

6 , 02O

8,850

10,200

10,200

13,000

17,900

13,600

10, 700

9,500

9,850

11,100

9,740

*8,700

7,600

6,750

6,140

7,120

10,300

9,100

8,500

7,950

7,120

6,500

6,960

6,920

5)340

260,800

8,413

40.3

Aug.

5,100

4,980

4,780

4,630

4,490

4,520

4,600

4,820

4,520

4,280

4,100

3,860

3,760

3,720

4,000

3,860

3,680

3,620

3,530

3,500

3,900

*4, 740

4,630

4,000

3,650

3,470

3,290

5.200

3,350

3^440

125,400

4,045

45.5

Sept.

4,780

5,260

4,980

5,100

4,560

4,000

5,590

10,200

7,000

5,660

4,740

4,520

4,280

4,100

4,000

4,100

4,490

4,600

5,540

6,550

5,700

5,100

6,180

5,540

5,500

7,840

8,950

7,120

6,550 

5, 860

168,390

5,613

40.6

Observed Diversion

viax 279,000 Min 1,620 Mean 13,610 Mean -

viax 121,000 Min 3,200 Mean 14,560 Mean 41.0

Peak discharge (base, 50,000 cfs).--Oct. 17 (6 a.m.) 133,000 cfs (11.93 ft); Nov. 1 (5 a.m.) 

53,600 cfs (6.62 ft); Apr. 8 (8 p.m.) 59,900 cfs (7.11 ft).

* Discharge measurement made on this day.

t Diversion abcve station for municipal supply, equivalent in cubic feet per second, furnished by 

i-ity of Trenton.

b Stage-discharge relation affected by ice.
Assunpink Creek at Trenton, N. J.

Location. Lat 40°13'29", long 74°45'02", on left bank at Chambers Street Bridge In 

Trenton, Mercer County, lj miles upstream from mouth.

Drainage area. 89.4 sq ml.

Records available. July 1923 to September 1956.

Gage.--Water-stage recorder. Concrete control since July 10, 1932. Datum of gage Is 

E4.76 ft above mean sea level (Hew Jersey Geological Survey benchmark).

Average discharge.--32 years, 119 cfs.

Extremes. Maximum discharge during year, 1,680 cfs Oct. 15 (gage height, 7.75 ft); minimum , 20 cfs Aug. 20 (gage height, 2.22 ft).

1923-56: Maximum discharge, 3,320 cfs Sept. 22, 1938 (gage height, 10.74 ft), from 

rating curve extended above 1,300 cfs; minimum, 1.0 cfs Aug. 21, Oct. 22, 1931 (gage 

height, 0.25 ft); minimum daily, 4 cfs July 21, Aug. 8, Sept. 2, 1929.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Revisions.--WSP 781: Drainage area.

Rating table, water year 1955-56 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Nov. 5-10, 16-19, Jan. 19-30)

2.23

Z.5 

3.0

56

137

4.0 

5.0 

6.5

365

650

1,170

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

70

64

63

63

60

86

84

117

112

102

99

94

89

437

1.170

984

895

596

391

280

219

180

158

150

143

137

132

124

121

269

312

7,801

252

2.82

3.25

Nov.

230

224

204

160

116

100

100

104

94

*96

178

148

126

126

123

112

104

94

94

95

95

100

95

90

90

85

85

80

80

15

3,503

117

1.31

1.46

Dec.

75

70

70

70

75

70

*70

67

65

6O

60

60

55

50

50

50

50

45

45

40

35

35

40

40

40

45

45

45

40

40

40

1,642

53.0

0.593

0.68

Jan.

40

40

40

40

40

45

45

40

45

70

110

150

130

110

100

90

90

85

78

73

70

64

*6*

57

56

56

49

43

55

151

221

2,347

75.7

0.847

0.98

Feb.

148

272

408

285

318

324

626

396

310

244

210

249

197

*172

162

148

132

509

578

408

300

197

154

126

177

217

182

274

259

7,982

275

3.08

3.32

Mar.

204

191

168

154

155

153

137

542

380

256

219

182

166

609

584

425

380

312

226

254

254

264

325

425

355

312

312

252

224

259

215

8,852

286

3.20

3.68

Apr.

193

174

158

143

133

128

262

725

759

521

332

244

199

170

168

226

193

168

152

135

121

110

110

104

99

117

114

110

109

104

6,281

209

2.34

2.61

May

91

*91

109

102

94

116

417

244

221

184

143

119

112

107

97

92

86

81

78

80

75

73

75

69

65

60

70

110

80

70

65

3,476

112

1.25

1.45

June

75

110

320

T50

110

94

78

64

53

59

64

*50

49

45

38

48

58

42

38

_34

36

36

35

137

70

64

60

49

42

35

2,143

71.4

0.799

0.89

July

30

31

36

28

60

48

43

38

57

43

4O

36

42

37

32

*37

38

32

30

31

191

110

102

105

102

78

63

55

55

56

59

1,745

56.3

0.630

0.73

Aug.

55

42

34

30

34

69

94

75

70

64

50

36

50

45

35

32

30

25

23

32

139

78

72

67

57

41

*36

35

34

30

31

1,545

49.8

0.557

0.64

Sept.

"28 26

34

53

60

69

73

86

~99 110

72

53

43

38

37

36

*41

52

41

38

35

30

33

55

43

41

45

48

41

36

1,496

49.9

0.558

0.62

Calendar year 1955: Max 1,880 Min 11 Mean 130 Cfsm 1.45 In. 19.82

Water year 1955-56: Max 1,170 Min 23 Mean 133 Cfsm 1.49 In. 20.31

se. 800 cfs).--Oct. 15 (2 a.m.) 1,680 cfs (7.75 ft); Feb. 18 (9 p.m.) 835 cfs 

' p.m.) 1,080 cfs (6.26 ft); Apr. 8 (11 p.m.) 932 cfs (5.84 ft), 

'menh mfldp on this riav.

Peak discharg __ 

(5.55 ft); Mar. 14 (7 _

* Discharge measurement made on this day.

Note. No gage-height record Nov. 2O bo De 

estimated on basis of recorded range in stag

. 6, Dec. 9 to Jan. 18, May 25 to June 4; discharge 

and records for nearby stations.
250 DELAWAHE RIVER BASIN

Crosswicks Creek at Extonville, N. J.

Location.--Lat 40°08'15", long 74°36'02", on right bank upstream from highway bridge at 

Extonville, Mercer County, half a mile upstream from Pleasant Run and 0.7 mile downstream from Mercer-Monmouth county line.

Drainage area. 83.6 sq mi.

Records available. August 1940 to October 1951, October 1952 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 24.94 ft above mean 

sea level, datum of 1929.

Average discharge. 15 years, 123 cfs.

Extremes. Maximum discharge during year, 1,360 cfs July 14 (gage height, 9.07 ft); minimum, 32 cfs Dec. 20, result of freezeup.

1940-51, 1952-56: Maximum discharge, 3,360 cfs Sept. 1, 1940 (gage height, 12.05 

ft); minimum, 13.1 cfs Feb. 14, 1942, result of freezeup; minimum daily, 20 cfs Aug. 12, 

1949, Aug. 1, 1950, July 23-26, Aug. 4-6, 1955.

Flood of Sept. 22, 1938, reached a stage of 13.0 ft (discharge, 4,100 cfs), from 

information by local residents.

Remarks. Records excellent except those above 300 cfs, which are good. Flow regulated 

occasionally by lakes above station.

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

2.47 

2.7 

3.2 

4.0

41

84

205

357

5.0 

7.0 

8.3

514

871

1,140

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

68

64

55

51

50

72

100

93

128

86

72

64

60

199

1.140

974

534

233

170

138

120

107

96

93

98

96

89

84

80

140

244

5,598

181

2.17

2.49

Nov.

153

123

110

102

96

89

84

91

89

*89

156

TF6

120

107

102

93

91

82

80

100

100

100

93

89 

82

78

76

74

72

66

2,943

98.1

1.17

1.31

Dec.

66

66

70

72

72

70

64

62

62

70

66

60

59

57

60

59

55

55

55

48

46

53

55

55 

59

60

52

50

53

53

56

1,840

59.4

0.711

0.82

Jan.

59

58

59

55

57

59

57

SB- 50

176

189

160

130

105

93

91

84

80

80

78

74

74

70 

70

66

64

60

64

157

290

2,854

92.1

1.10

1.27

Feb.

156

173

393

235

283

213

447

355

180

156

150

253

191

150

138

136

125

398

843

34T

177

153

130

117 

153

189

153

172

189

6,749

232

2.78

3.00

Mar.

148

14O

156

148

136

125

128

168

287

180

150

138

138

290

625

319

434

340

216

189

184

214

290

407 

286

200

177

156

150

187

163

6,869

222

2.66

3.06

Apr.

140

128

125

123

123

117

214

651

827

385

212

180

158

146

138

165

180

160

146

138

133

123

117

m

130

156

133

125

120

5,726

191

2.28

2.55

May

107

98

133

130

117

107

244

*245

153

128

125

128

115

105

105

91

84

84

80

78

74

74

72

89 

74

70

76

96

78

72

70

3,302

107

1.28

1.47

June

96

117

175

123

98

84

76

70

62

62

64

57

55

51

46

44

59

82

57

50

48

53

51

89 

80

59

51

46

51

46

2,102

70.1

0.839

0.94

July

43

li

41

46

43

53

53

50

125

156

74

60

91

894

762

211

123

100

80

70

356

919

347

180 

146

115

112

102

105

72

5,656

182

2.18

2.52

Aug.

64

60

59

55

57

91

zu

T55

100

80

68

60

59

60

60

55

51

50

48

16

134

153

96

78 

68

60

57

55

51

50

50

2,329

75.1

0.898

1.04

Sept.

50

74

153

100

80

84

325

154

89

72

66

60

57

55

51

59

59

55

50

50

50

50

48

57 

68

53

50

70

68

60

2,317

77.2

0.923

1.03

Calendar year 1955: Max 1,400 Mln 20 Mean 103 Cfsm 1.23 In. 16.76

Water year 1955-56: Max 1,140 Mln 41 Mean 132 Cfsm 1.58 In. 21.50

Peak discharge (base, 650 cfs). Oc

(7.58 ft); Mar. 15 (11 a.m.) 710 cfs

t. 15 (10 p.m.) 1,250 cfs (8.79 ft); Feb. 19 (6 p.m.) 991 cfs 

(6.16 ft); Apr. 9 (1 a.m.) 970 cfs (7.48 ft); July 14 (5 p.m.)

1,360 cfs (9.07 ft); July 22 (7 a.m.) 1,050 cfs (7.86 ft).

* Discharge measurement made on this day.
DELAWARE RIVER BASIN 251

Neshamlny Creek near Langhorne, Pa.

Location. Lat 40°10'25", long 74°57'30", on left bank at bridge on State Highway 213, 

0.3 mile downstream from Mill Creek and 1.7 miles west of Langhorne, Bucks County. 

Drainage area. 210 sq mi.

Recordsavailable.--October 1934 to September 1956. 

Gage. Water-stage recorder. Datum of gage is 40.57 ft above mean sea level, datum of

Average discharge.--22 years, 276 cfs.

Extremes. Maximum discharge during year, 9,430 cfs Oct. 15 (gage height, 9.96 ft); minimum, 15 cfs Aug. 20, Sept. 27 (gage height, 0.68 ft).

1934-56: Maximum discharge, 49,300 cfs Aug. 19, 1955 (gage height, 22.84 ft, from 

floodmarks), from rating curve extended above 4,700 cfs on basis of contracted-opening 

determination at gage height 15.94 ft, and slope-area determination of peak flow; minimum, 3.5 cfe Oct. 1, 1951 (gage height, 0.60 ft); minimum dally, 7.1 cfs Sept. 24, 1939.

Flood of Aug. 23, 1933, reached a stage of 17.3 ft, from floodmark (discharge, 

30,000 cfs), from rating curve extended as explained above.

Revisions.--Figures of maximum discharge for the water years 1936 and 1937 have been 

revised to 14,800 cfs Jan. 3, 1936 (gage height, 12.53 ft) and 7,410 cfs Dec. 20, 1936 

(gage height, 9.09 ft), superseding those published In WSP 801 and 821, respectively.

Remarks.--Records good except those for periods of Ice effect, which are fair. Some regulation at low flow by mills above station. Occasional regulation by Springfield Lake 

(capacity, 650,000,000 gal), completed in 1943; no significant regulation except during 

period May 1943 to January 1944, when the lake was filling, and in September 1949 and 

July 1954.

Revisions (water years) . WSP 1332: 1949. Revised figures of discharge, In cubic feet 

per second, for high-water periods In the water years 1936-37, superseding those published In WSP 801 and 821, are given herewith:

1936 1936-Con.

Jan. 3........ 9,290 Jan. 10........ 2,460

4........ 1,260 Mar. 11........ 4,290

9........ 4,180 12........ 4,710

1936-Con. 

Mar. 18........ 4,600

Dec. 17........ 1,960

20........ 4,150

Month

Water year 1935-36. .............

Water year 1936-37. .............

Cfs-days

120,680

80,809.1

Maximum

9 290

9,290

4,150

Minimum

 »QO

13

8.2

Mean

Q/1Q

330

221

Per square 

mile

1.57

1.05

Runoff In 

Inches

21.39

2.11

19.98

14.30

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

82

75

71

67

67

81

169

146

178

134

97 

97

82

1,640 

6.220

2,640

1,270

608

454

*365

323

288

238

210

234

194

166

154

146 

300

392

17,188

554

2.64

3.04

Nov.

220

182

169

157

148

137

137

143

137

131

m207

185 

169

163

163

148

143

157

163

191

178

163

151

137

129

129

120

32.

5,106

170

0.810

0.90

Dec.

98

104

104

107

T54

104

97

92

90

84

80 

76

68

64

68

62

66

64

58

56

 si 52

70

75

75

70

64

58

*54 

52

56

2,326

75.0

0.357

0.41

Jan.

50

48

53

55

56

52

46

12

64

84

162

241

244

169 

126

90

78

70

68

72

68

66

66

60

56

52

50

50

54 

450

 ' 

4,852

157

0.748

0.86

Feb.

*350

400

2,400

479

570

1,150

2.880

429

365

352 

540

391

299

285

307

256

2,330

1,420

553

410

300

240

210

33(5

562

323

764

574

20,172

696

3.31

3.57

Mar.

307

303

319

292

267

260

*32^

2,870

1,270

541

439 

460

410

3.640 

1,620

758

667

614

450

430

454

513

832

1,540

893

1,220

1,670

987

667 

890

26,527

856

4.08

4.70

Apr.

470

410

387

369

348

303

852

2.770

1,956

1,310

654 

*524

449

401 

382

648

690

406

360

327

288

274

267

253

229

243

260

226

213

203

16,466

549

2.61

2.92

May

179

173

203

203

179

170

1.810

525

303

253

223 

200

197

188

164

150

134

129

121

134

129

113

188

*134

108

96

101

118

96

2S. 07O (

6,886

222

1.06

1.22

June

96

136

534

223

138

118

101

91

87

85

87 

74

72

61 

65

58

61

61

51

51

58

63

63

260

108

68

56

51

54 

49

3,080

103

0.490

0.55

July

48

43

51

54

68

*78

63

54

83

150

68 

53

49

51 

43

45

42

36

220

HI

89

83

76

58

51

49

51 

51

40

2,134

68.8

0.328

0.38

Aug.

36

34

31

32

46

59

81

53

43

36

33 

25

30

51 

*36

32

30

36

29

ii

77

135

5^

48

35

30

29

28

25 

27

1,298

41.9

0.200

0.23

Sept.

347

393

68

53

39

40

58

56

34

29

27 

26

25

24 

23

27

29

39

30

27

25

23

25

37

27

30

*22

36

42

48

1,709

57.0

0.271

0.30

Calendar year 1955: Max 27,300 Mln 11 Mean 343 Cfsm 1.63 In. 22.18

Water year 1955-56: Max 6,220 Mln 18 Mean 294 Cfsm 1.40 In. 19.08

Peak discharge (base, 3.600 cfs).--Oct. 15 (10 p.m.) 9,430 cfs (9.96 ft); Feb. 3 (3 a.m.) 6,410 

ofs (8.17 ft); Feb. 6 (4 a.m.) 5,300 cfs (7.35 ft); Feb. 18 (7 p.m.) 5,300 cfs (7.37 ft): Mar. 8 

(7 a.m.) 3,650 cfs (5.95 ft); Mar. 14 (7:30 p.m.) 7,650 cfs (8.99 ft); May 7 (11:30 a.m.) 4,550 cfs 

(6.83 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Nov. 30, Dec. 1, 10-23, Dec. 26 to Jan. 2, Jan. 

6-9, Jan. 16 to Feb. 3, Feb. 22-24, Mar. 19, 20.
252 DELAWARE RIVER BASIN 

North Branch Rancocas Creek at Pemberton, N. J.

Location. Lat 39"58'10", long 74 0 41'05", on right bank at downstream side of highway 

bridge at Pemberton, Burlington County, and 12 miles upstream from confluence with 

South Branch.

Drainage area.--Ill sq mi.

Records available. September 1921 to September 1956.

Gage. Water-stage recorder above concrete dams. Datum of gage is 31.19 ft above mean sea 

level, datum of 1929. Prior to June 9, 1923, staff gage and June 9, 1923, to Aug. 9, 

1951, water-stage recorder, at site 600 ft downstream at datum 6.54 ft lower.

Average discharge. 35 years, 164 cfs.

Extremes. Maximum discharge during year, 535 cfs Feb. 19, July 14 (gage height, 2.36 ft); 

minimum, 60 cfs Oct. 5 (gage height, 1.51 ft).

1921-56: Maximum discharge, 1,730 cfs Aug. 21, 1939 (gage height, 10.77 ft, from 

floodmark in recorder shelter, site and datum then in use), from rating curve extended 

above 1,300 cfs; minimum daily, 9 cfs Sept. 29, 1932.

Remarks.--Records excellent except those for period of no gage-height record, which are 

good. Plow regulated occasionally by operation of gate in dam.

Revisions (water years ). WSP 1382: 1933.

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

1.52 

1.7 

2 .0 

2 .4

64

139

296

564

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

80

80

76

68

64

72

95

104

108

104

95

95

95

202

465

463

376

370

302

234

213

192

173

158

149

149

144

135

126 

135

173

5,293

171

1.54

1.77

Nov.

192

187

177

173

153

144

135

135

130

121

139

149

153

149

144

153

130

121

117

121

126

126

126

117

113

113

108

108

108

104

4,072

136

1.23

1.36

Dec.

99

99

99

99

95

91

87

87

87

87

91

91

87

87

87

87

87

87

84

80

76

76

76

80

84

87

84

80

76 7 6

76

2,669

86 . 1

0.776

0.89

Jan.

76

76

76

76

76

80

80

76

80

99

144

163

158

144

126

117

113

99

99

99

104

113

121

121

121

126

IE 6

126

126 

144

177

3,462

112

1.01

1.16

Feb.

168

158

187

192

203

2O3

250

250

239

218

213

239

25O

239

223

213

203

320

443

443

357

290

213

229

256

268

256

256

273

7,252

250

2 .25

2.43

Mar.

250

239

239

223

208

208

213

229

245

262

245

*223

213

285

357

390

443

436

409

383

376

376

370

339

351

339

296

262

256 

256

245

9,166

296

2.67

3.07

Apr.

218

208

182

139

168

173

234

409

450

491

429

370

339

320

290

262

223

200

230

220

210

190

180

170

170

180

230

250

230 

210

7,575

252

2 .27

2.54

May

200

180

190

2OO

240

200

170

140

163

208

218

177

149

197

192

126

121

126

153

144

126

121

121

121

115

113

130

173

163 

130

121

4,926

159

1.43

1.65

June

126

139

187

Tff

158

139

113

1O4

104

95

95

95

91

91

84

76

76

84

80

87

95

104

91

99

99

91

80

113

99

91

3,165

105

0.946

1.06

July

80

72

68

68

72

108

117

108

155

155

150

104

139

533

262

149

126

80

76

80

329

520

47O

314

262

239

223

192

182 

173

149

5,531

178

1.60

1.85

Aug.

126

113

104

104

121

188

303 2~6B~

25O

208

163

126

130

135

130

115

99

99

99

95

158

187

182

113

139

126

117

108

104 

99

99

4,411

142

1.28

1.48

Sept.

99

121

153

187

203

229

218

208

177

155

149

144

159

*113

87

91

87

87

84

87

87

84

91

121

126

117

121

115

84 

76

3,856

128

1.15

1.29

Calendar year 1955; Max 641 Min 35 Mean 123 Cfsm 1.11 In. 14.99

Water year 1955-56: Max 52O Min 64 Mean 168 Cfsm 1.51 In. 2O.55

Peak discharge (base. 60O cfs). No peak above base. 

* Discharge measurement made on this day. 

Note. No gage-height record Apr. 18 to May 8; discharge 

stage and records for nearby stations.

jstlmated on basis of recorded range in
DELAWARE RIVER BASIN 253

Schuylkill River at Pottsville, Pa.

Location. Lat 40°41'QO", long 76°11'1U", on upstream side of Palo Alto Highway bridge at 

Pottsville, Schuylkill County, 1.3 miles downstream from Mill Creek.

Drainage area.--53.4 sq mi.

Records available. October 1943 to September 1956.

Gage. Wire-weight gage read twice daily. Datum of gage is 599.24 ft above mean sea level, 

datum of 1929.

Average discharge. 13 years, 113 cfs.

Extremes. Maximum discharge during year, 1,070 cfs Sept. 6 (gage height, 4.58 ft); minimum observed, 20 cfs Jan. 24 (gage height, 1.15 ft).

1943-56: Maximum discharge, 4,800 cfs Nov. 25, 1950 (gage height, 7.9 ft, from 

graph based on gage readings), from rating curve extended above 2,000 cfs; minimum observed, 11 cfs July 30, Aug. 2,8, 1954; minimum gage height observed, 1.10 ft Sept. 10, 

1944.

Flood in May 1942 reached a stage of 8.8 ft, from floodmark (discharge, 6,170 cfs, 

from rating curve extended above 2,000 cfs).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Revisions (water years) . WSP 1051: 1944-45.

Rating tables, water year 1955-56, except periods of ic 

height, in feet, and discharge, in cubic feet per

effect (gage 

econd)

Oct. 1-31, Sept. 7-30

1.5 

1.9

2.4

2.9 

3.4

291

455

165

1.2 

1.5 

1.9

Nov. 1 to Sept. 6 

21 2.4

70

138

234

3.2 376

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Toba2

Mean

Cfsm

In.

Oct.

60

52

42

47

4£

176

136

176

144

124

117

113

106

347

454

420

*402

321

291

£35

187

187

144

154

128

110

100

93

98

347

364

5,717

184

3.45

3.98

Nov.

285

£34

192

157

148

138

106

93

81

87

121

93

93

76

70

128

121

121

106

114

106

93

87

100

81

81

87

*68

65

64

3,396

113

2 . 12

2.37

Dec.

60

62

64

65

55

50

50

46

46

44

41

39

38

37

36

34

36

35

34

30

28

31

36

41

35

31

*30

31

30

21

1,250

40.3

0.755

0.87

Jan.

30

34

37

34

32

30

28

30

30

35

39

34

32

30

29

28

26

25

26

26

24

23

23

25

24

23

22

23

24

*43

30

899

29.0

0.543

0.63

Feb.

25

26

35

35

38

47

61

56

63

63

99

125

100

93

93

81

81

175

136

114

106

87

81

76

loo

93

81

93

81

2,344

80.8

1.51

1.63

Mar.

76

76

87

93

*70

76

87

130

130

138

148

130

121

148

138

148

157

148

121

121

121

114

106

130

121

121

121

114

130

130

130

3,681

119

2.23

2.56

Apr.

114

114

106

100

100

87

128

165

157

*170

180

175

165

155

150

*157

135

115

105

92

90

85

94

89

76

76

74

72

74

150

3,550

118

2.21

2.47

May

130

130

175

165

145

135

170

145

125

115

110

105

125

120

105

100

94

31

89

86

*81

72

*76

66

70

68

87

65

58

70

70

3,243

105

1.97

2.26

June

87

143

180

148

138

121

114

106

106

loo

87

87

81

81

76

70

69

58

57

55

56

59

61

63

47

44

67

44

50

50

2,505

83.5

1.56

1.74

July

45

*49

96

121

148

168

157

157

204

157

138

130

121

130

106

93

87

76

70

82

120

93

70

76

69

64

85

76

76

61

51

3,176

102

1.91

2.21

Aug.

51

53

55

55

74

79

64

56

55

56

53

51

*62

57

47

45

40

36

34

49

73

47

36

34

34

35

35

37

39

39

43

1,524

49.2

0.921

1.06

Sept.

148

93

81

76

60

347

237

154

130

106

103

93

80

82

96

98

82

74

70

82

71

71

71

*83

74

70

64

76

79

72

3,023

101

1.89

2.11

Calendar year 1955: Max 1,100 Min 14 Mean 89.1 Cfsm 1.67 In. 22.66

Water year 1955-56: Max 454 Min 22 Mean 93.7 Cfsm 1.75 In. 23.89

Peak discharge (base, 600 cfB).--Oet. 15 (10 a.m.) 770 cfs (4.06 ft); Sept. 6 (5 p.m.) 1,070 cfs 

(4.58 ft).

* Discharge measurement made on this day.

Note.--Mo gage-height record Apr. 10-15, Apr. 17 to May 20, May 22; discharge estimated on basis 

of weather records and records for nearby stations. Stage-discharge relation affected by ice Dec. 9 

to Jan. 1, Jan. 13-29, Feb. 1.
254 DELAWARE RIVEK BASIN

Little Schuylklll River at Tamaqua, Pa.

Location. Lat 40°48'20", long 75°58'20", on left bank at pumping plant of Panther Valley 

Water Co., 0.6 mile upstream from Tamaqua, Schuylkill County, and 0.8 mile upstream 

from Panther Creek.

Drainage area. 42.9 sq ml.

Records available.--October 1919 to September 1921 and October 1931 to September 1956 In 

reports of Geological Survey. June 1916 to September 1919 (gage heights and discharge 

measurements only) and October 1919 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder and broad-crested weir. Datum of gage Is 817.48 ft above mean 

sea level, datum of 1929, supplementary adjustment of 1943. Prior to June 21, 1927, 

chain gage at site 3,600 ft downstream at datum 28.64 ft lower.

Average discharge. 37 years (1919-56), 95.5 cfs (adjusted for diversion and, since Octobe? 1943, for storage).

Extremes. 1919-20: Maximum discharge during water year, 1,020 cfs Mar. 13 (gage height, 

4.00 ft); minimum dally, 5 cfs Oct. 9.

1920-21: Maximum discharge during water year, 902 cfs Mar. 3 (gage height, 3.85 ft); 

minimum daily, 8.5 cfs (revised) Sept. 8-11, 19, 20.

1955-56: Maximum discharge during water year, 2,870 cfs Oct. 15 (gage height, 

6.93 ft); minimum dally, 22 cfs Jan. 27.

1916-56: Maximum discharge, 7,790 cfs Aug. 18, 1955 (gage height, 11.10 ft), from 

rating curve extended above 3,200 cfs on basis of contracted-opening determination of 

peak flow; minimum dally, 3.0 cfs Dec. 23, 1930.

Revisions.--The minimum daily discharge for the water year 1921 has been revised to 

8.5 cfs Sept. 8-11, 19, 20, 1921 (gage height, 1.85 ft), superseding figure published 

in WSP 521. The maximum discharge (not previously published) for the water year 1933 

has been determined as 3,740 cfs Aug. 24, 1933 (gage height, 7.50 ft).

Remarks.--Records good except those for periods of ice effect, which are fair. Flow regulated by Still Creek Reservoir (see p. 277). Water diverted from reservoir for municipal and mining use.

Revisions (water years) . WSP 756: Drainage area. WSP 971: 1942. The unadjusted

monthly mean discharge for June 1948 has been corrected to 48.6 cfs, superseding figure 

published in WSP 1111. Revised figures of discharge, in cubic feet per second, for the 

water years 1920-21, and 1933, superseding those published in WSP 501, 521 and 741, are 

given herein. Complete tables of daily discharge are given for the water years 1920-21, 

but only revised figures are given for water year 1933.

1933 

Aug. 24............ 2,790

25............ 1,060

26............ 516

Month

Observed

Maximum

2,790 

2,790 

2,790

Minimum

14 

4.8 

14

Mean

226 

131 

114

Diversion

change In 

contentst

+4.1 

+5.1 

+6.6

 Adjusted

Mean

230 

136 

121

Per square 

mile

5.36 

3.17 

2.82

Runoff In 

Inches

6.18 

42.96 

38.28

t Diversion and change In contents In Still Creek Reservoir, equivalent In cubic feet per second.
DELAWARE RIVER BASIN 255

Little Schuylkill River at Tamaqua, Pa. Continued

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

 total

Mean

(t)

Mean

Cfsm

In.

Discharge

Oct.

30

18

10

8

18

15

10

7

5

12

14

20

14

24

54

70

54

42

44

50

46

44

48

65

48

50

91

155

85

85

1,299

41.9

+2.4

44.3

1.03

1.19

Nov.

109

115

103

100

180

180

180

145

130

115

115

180

240" 300

180

145

145

145

121

*115

100

100

100

85

72.

220

220

220

220 

220

4,600

153

+ 1.2

154

3.59

4.00

Calendar year 1919: >

Water year 1919-20: t

In cubic feet per second, water year October 1919 to September 1920

Dec.

' 162

162

145

145

127

124

124

115

300

260

180

162

200

200

170

150

130

110

95

85

78

70

65

60

55

52

44

43

42

42 

40

3,737

121

+ 1.4

122

2.84

3.27

Jan.

46

38

30

20

20

30

40

*50

70

85

60

50

40

40

30

20

20

20

30

30

30

30

30

30

30

30

30

30

30

30 

30

1,099

35.5

+1.7

37.2

0.867

1.00

Feb.

21

20

2T

23

25

*28

30

32

34

37

42

44

48

52

62

60

55

52

56

54

49

48

60

57

53

44

36

37

40

1,220

42.1

+1.9

Mar.

40

40

40

*40

460

850

460

260

200

220

162

755

1.020

685

430

685

720

650

615

430

350

300

430

520

460

430

400

325

260

240 

220

12,697

410

+1.8

Apr.

325

350

121

145

350

220

200

200

200

180

145

145

240

280

240

260

325

260

220

220

220

180

162

145

145

112

115

115

88

85

5,993

200

+1.3

Adjusted for diversion

44.0

1.03

1.11

412

9.60

11.07

201

4.69

5.23

Observed

lax - Min - Mean -

lax 1,020 Min 5 Mean 102

May

91

85

60

62

65

65

60

60

60

56

60

60

85

72

72

60

56

56

50

56

60

60

60

50

48

44

*40

40

38

38 

36

1,805

58.2

+ 1.6

59.8

1.39

1.60

June

36

30

40

42

85

82

40

38

36

36

30

30

38

30

30

30

60

65

40

40

40

40

36

30

24

24

18

18

19

20

1,127

37.6

+1.5

39.1

0.911

1.02

July

19

19

62

48

29

18

19

23

18

18

24

109

44

36

44

30

24

26

26

22

18

18

145

100

52

27

27

27

24

24 

24

1,144

36.9

+2.0

38.9

0.907

1.05

Aug.

56

30

24

22

22

22

22

19

19

!§

18

18

22

32

36

28

180

100

80

56

40

40

36

30

27

24

24

27

38

28 

27

1,165

37.6

+1.9

39.5

0.921

1.06

Sept.

26

20

20

19

18

40

50

24

23

91

50

40

30

24

24

24

24

18

1212-

12

12

12

12

12

30

27

136

100

650_

1,592

53.1

+0.9

54.0

1.26

1.41

Adjusted

Mean - Cfsm - In. -

Mean 104 Cfsm 2.42 In. 33.01

* Discharge measurement made on this day.

28-31, Jan. 3 to Mar. 6. 

stober 1920 to September 1921

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Mean

Cfsm

In.

Oct.

460

325

240

180

162

121

115

97

85

72

60

80

56

54

54

52

44

38

34

34

30

30

20

20

20

20

24

80

44

20 

20

2,691

86.8

+ 1.5

88.3

2.06

2.38

Nov.

20

30

40

48

50

50

42

40

46

42

40

40

40

40

40

40

220

180

139

127

115

115

260

180

162

180

162

145

130

130

2,893

96.4

+ 1.3

97.7

2.28

2.54

Calendar year 1920:

Water year 1920-21:

Dec.

300

280

240

200

180

180

180

145

139

142

145

130

115

350

520

300

260

220

180

162

130

130

260

220

180

180

180

162

162 

127

115

6,214

200

+0.9

201

4.69

5.41

Jan

115

115

115

100

100

97

94

85

82

72

75

78

78

325

162

100

75

60

60

200

350

162

118

85

60

50

50

60

85 

145

133

3,486

112

+0.4

112

2.61

3.01

Feb.

72

65

60

50sees

72

65

60

56

60

65

72

70

80

85

85

70

72

120

260

220

130

60

109

100

121

162

-

2,562

91.5

+2.0

Mar.

220

375

790

685

520

400

280

260

300

260

260

260

240

220

220

220

180

180

162

145

145

130

127

133

490

350

300

280

240 

220

200

8,792

284

+ 1.8

Adjusted for div

93.5 286

2.18 6.67

2.27 7.69

Apr.

220

200

180

162

162

145

139

130

130

115

100

91

85

115

133

121

100

100

94

94

91

91

430

400

280

220

180

162

145

_

4,795

160

+ 1.4

erslon

161

3.75

4.18

Observed

lax 1,020 Min 12 Mean 108

lax 790 Min 8.5 Mean 106

May

142

115

109

115

200

180

180

162

142

109

109

*97

220 200"

162

162

145

130

115

100

100

100

100

82

82

70

60

60

60 

50

50

3,708

120

+ 1.4

121

2.82

3.25

June

46

40

40

42

40

40

40

35

32

32

32

26

26

26

26

20

20

20

20

20

18

15

15

14

14

14

14

14

40 

38

819

27.3

+1.8

29.1

0.678

0.76

July

27

20

19

14

12

11

10 I6~

10

20

2622"

20

10

20

20

10

10

78

240

145

78

68

60

50

40

38

32

40 

40

32

1,232

39.7

+1.7

Aug.

29

50

124

TI?

54

32

29

62

*37

32

32

32

32

29

29

26

24

32

26

26

26

26

26

18

18

18

14

14

14 

14

14

1,051

33.9

+1.3

Sept.

14

14

14

10

10

12

9.5

8.5

875

8.5

8.5

40

13

10

10

9.0

13

12

8.5

8.5

80

65

37

24

44

23

12

11

11 

11

559.5

18.6

+2.0

41.4

0.965

1.11

35.2

0.821

0.95

20.6

0.480

0.54

Adjusted

Mean 110 Cfsm 2.56 In. 34.88

Mean 108 Cfsm 2.52 In. 34.09

* Discharge measurement made on this day. t Diversion, in cubic feet per second, furnished 

by Panther Valley Water Co. Mote. Shifting-control method used May 1-4, 6-12.
256 DELAWARE RIVER BASIN

Little Schuylkill River at Tamaqua, Pa. Continued

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

50

42

40

39

56

138

135

141

133

 119

105

91

89

318

1,290

940

732

472

340

260

214

182

157

137

129

114

101

98

94

484 

450

7,672

247

7.0

Nov.

319

244

206

176

155

141

131

119

105

94

108

100

93

*89

86

187

176

164

159

150

137

121

112

108

101

91

89

83

73

7C_

3,987

133

12.7

Dec.

67

62

62

66

64

58

52

51

50

48

50

46

43

42

40

37

*39

37

35

33

30

40

48

54

48

43

38

37

41

36

31

1,428

46.1

13.0

Jan.

36

37

37

36

32

31

28

32

36

42

38

36

32

30

28

27

26

25

27

27

26

25

24

26

25

*23

22

23

24

32

931

30.0

13.3

Feb.

26

27

29

31

28

37

130

125

105

94

138

155

94

79

86

79

70

208

132

118

105

84

75

68

169

102

83

118

84

2,679

92.4

9.2

Mar.

75

*88

86

84

11

73

77

143 isoiis

135

138

121

133

130

120

115

105

100

90

84

86

96

126

118

118

126

126

114

112

112

3,352

108

8.6

Apr.

*105

105

105

114

116

112

157

202

199

222

250

260

253

222

196

187

177

154

128

114

101

96

101

98

88

81

81

77

88

249

4,438

148

10.7

May

187

193

202

174

157

152

234

171

148

140

130

123

162

*133

116

103

83

83

83

83

83

69

94

70

60

55

58

63

51

50

ST

3,567

115

11.2

June

56

120

184

156

142

126

113

97

92

99

92

73

61

56

52

50

50

43

36

34

40

40

33

35

30

28

32

*30

28

26

2,054

68.5

14.1

July

25

24

65

234

242

199

174

154

270

190

154

139

123

126

102

95

80

69

60

58

116

75

65

52

58

60

101

82

88

69

60

3,409

110

8.1

Aug.

54

T9

42

42

52

*54

52

4*

33

33

34

34

46

46

34

35

31

29

27

29

54

35

30

E6

25

26

25

29

26

30

1,144

36.9

13.7

Sept.

65

35

31

29

30

166

142

108

82

73

69

63

60

54

60

67

*64

54

43

67

46

40

44

80

50

50

54

63

54

50

1,893

63.1

12.2

Adjusted for diversion and change in contents in Still Creek Reser

Mean

Cfsm 

In.

256 

5.97 

6.88

144 

3.36 

3.75

Calendar year 1955: 

Water year 1955-56;

57.0

1.33 

1.53

39.2 

0.914 

1.05

104 

2.42

2.61

120 

2.80 

3.23

159 

3.71 

4.14

126 

2.94 

3.39

Observed

Max 2,080 Min 9.5 Mean 98.7 

Max 1,290 Min 22 Mean 99.9

73.6 

1.86 

2.08

121 

3J25

45.9 

1.07 

1.23

75.1 

1.75 

1.95

Adjusted

Mean 109 Cfsm 2.54 In. 34.45 

Mean 111 Cfsm 2.59 In. 35.09

Peak discharge (base. 700 efs).--0et. 15 (11:30 a.m.) 2,870 cfs (6.93 ft); Oct. 30 (9 p.m.) 

756 cfs (4.41 ft) .

* Discharge measurement made on this day.

t Diversion from Still Creek Reservoir, equivalent in cubic feet per second, furnished by Panther 

Valley Water Co.

Note.--Stage-discharge relation affected by ice Nov. E8, 29, Dec. 14 to Jan. 3, Jan. 7-9, Jan. 14 

to Feb. 1, Feb. 6-8, 12, 22-24, 29, Mar. 1, 16-21 (no gage-height record Dec. 17 to Jan. 3; discharge estimated on basis of 1 discharge measurement, weather records, and records for nearby 

stations).
DELAWARE RIVER BASIN 257 

Schuylkill River at Berne, Pa.

Location. Lat 40°31'20", long, 75°59'55", on right bank at highway bridge at Berne, Berks 

County, 0.5 mile upstream from Mill Creek and 6.5 miles downstream from Little Schuylkill River.

Drainage area. 355 sq mi.

Records available.--August 1947 to September 1956.

Gage.--Water-stage Gage.--W recorder. Datum of gage is 310.65 ft above mean sea level, datum of

1929.

Average discharge .--9 years, 763 cfs.

Extremes .--Maximum discharge during year, 8,580 cfs Oct. 15 ge height, 9.33 ft); minimum, 162 cfs Jan. 27 (gage height, 4.52 ft).

1947-56: Maximum discharge, 29,400 cfs Aug. 19, 1955 (gage height, 15.73 ft), from 

rating curve extended above 17,000 cfs by logarithmic plotting; minimum, 31 cfs Sept. 2 , 

1949.

Flood in May 1942 reached a stage of 15.0 ft, from floodmarks (discharge, 26,900 

cfs).

Remarks.--Records good except those for periods of ice effect, which are fair. Some regulation at low flow by mine pumpage above station. Records of chemical analyses, 

suspended sediment loads, and water temperatures for the water year 1956 are given in 

WSP 1450.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge. In cubic feet per second)

4.6 

5.0 

5.5

196

407

790

6.0 

7.0

1,320

2,830

5,480

Discharge feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

472

389

365

342

556

1,090

1,440

1,560

1,130

970

850

745

683

2,110

5.520

4,820

*4,480

3,200

2,410

1,820

1,480

1,260

1,080

990

940

820

736

667

672

2,550

3,480

49,007

1,581

4.45

5.13

Nov.

2.410

1,840

1,520

1,380

1,140

1,030

940

860

790

718

1,030

860

781

736

70O

1,030

1,350

1,170

1,140

1,090

990

900

810

790

727

675

658

654

580 

550

29,809

994

2.80

3.12

Dec.

521

*57J7

507

507

50O

466

440

420

42O

407

400

380

570

350

340

330

350

360

330

310

280

310

360

410

380

330

500

270

280 

260

*255

11,630

375

1.06

1.22

Jan.

270

270

277

272

255

250

240

230

250

400

320

305

292

255

245

235

230

220

220

230

225

220

210

220

310

260

240

255

270 

*310

420

8,204

265

0.746

0.86

Feb.

330" 520

400

353

325

457

1,320

1,100

945

810

842

1,440

1,020

850

772

727

634

1,070

1.500

1,140

990

840

745

658

772

890

667

709

700

23,326

804

2.26

2.44

Mar.

602

617

617

617

572

550

587

*950

1,210

1,100

1,150

1,100

1,000

1,340

1,680

1,500

1,360

1,130

1,030

890

840

880

980

1,190

1,110

1,060

1,000

92O

880 

870

830

30,122

972

2.74

3.16

Apr.

745

709

692

675

675

642

870

1,250

,210

,360

,4OO

,360

,250

,110

,030

*1,060

940

810

736

667

650

617

70O

634

564

557

550

521

535 

1,110

25,629

854

2.41

2.68

May

97O

950

1.510

1,120

1,050

980

1,240

1,010

890

840

820

772

910

850

692

650

602

580

564

542

*514

495

542

514

440

420

459

466

407 

395

440

22,412

723

2.04

2.35

June

580

741

1.440

1,190

1,040

920

790

7OO

642

617

610

507

459

420

389

389

446

389

347

325

353

371

383

440

371

305

395

389

303

28C

16,531

551

1.55

1.75

July

272

*298

754

493

1,010

960

870

754

1.200

970

781

692

642

683

557

507

493

426

389

577

751

572

472

420

401

401

466

426

440 

377

342

18,196

587

1.65

1.91

Aug.

325

320

298

292

389

420

446

342

303

303

287

272

282

336

282

267

*252

247

262

247

395

330

272

252

237

228

224

219

242 

214

252

9,037

292

0.823

0.95

Sept.

607

395

320

287

252

751

1,540

763

617

521

486

452

420

395

414

572

433

414

359

452

395

353

359

606

466

426

401

466

*452 

414

14,588

486

1.37

1.53

Calendar year 1955: Max 16,OOO Mln 95 Mean 731 Cfsm 2.06 In. 27.95

Water year 1955-56: Max 5,320 Mln 210 Mean 706 Cfsm 1.99 In. 27.08

Peak discharge (base. 4.400 cfs). Oct. 15 (5.30 p.m.) 8,580 cfs (9.33 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 11 to Jan. 2, Jan. 5-10, Jan. 14 to Feb. 3.
258 DELAWARE RIVER BASIN

Tulpehocken Creek near Reading, Pa.

Location.--Lat 40°22'10", long 75°58'45", on right bank at covered bridge 1 mile downstream from Cacoosing Creek, 2.5 miles upstream from mouth, and 3.5 miles northwest of 

square at Reading, Berks County.

Drainage area. 211 sq mi.

Records available. December 1950 to September 1956.

Gage. Water-stage recorder. Datum of gage is 216.60 ft above mean sea level, datum of 

i929, supplementary adjustment of 1943.

Average discharge.--5 years (1951-56), 341 cfs.

Extremes.--Maximum discharge during year, 6,000 cfs Sept. 6 (gage height, 7.42 ft), from 

rating curve extended above 3,500 cfs as explained below; minimum daily, 76 cfs Jan. 28.

1950-56: Maximum discharge, 7,680 cfs Sept. 1, 1952 (gage height, 8.65 ft), from 

rating curve extended above 3,500 cfs by logarithmic plotting; minimum, 40 cfs Aug. 6, 

1955 (gage height, 1.17 ft); minimum daily, 45 cfs Aug. 6, 1955.

Remarks. Records good except those for periods of ice effect, which are fair. Some regulation at low flow by mills above station.

Revisions (water years ). WSP 1382: 1951-53, 1954(M).

Rating tables, water year 1955-56, except periods of ice effect 

height, In feet, and discharge, in cubic feet per second)

Oct. 1-31

1.5 116

1.9 265

2.5 614

3.1 1,110

Nov. 1 to Sept. 3O

1.3 66

1.5 124

2.0 329

2.5 

4.0

634

1,960

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

189 

150

140

131

13T

476

552 

519

433

371

323

299

27O

558

651

748

1.030

791

636

526

*457

415

376

365

344

313

294

275

279

856

664

13,564

438

2.08

2.39

Nov.

532 

457

422

405

356

334

319 

310

286

281

519

366

340

329

310

366

361

310

315

319

310

310

291

286

277

272

264

250

210

220

9,927

331

1.57

1.75

Dec.

220 

*226

230

230

226

206

198 

198

198

190

165

170

165

160

165

130

140

150

155

120

110

100

140

156

168

150

125

110

114

*131

110

5,056

163

0.773

0.89

Jan.

105 

105

124

128

128

124

120 

105

96

160

160

164

164

142

128

124

115

100

105

110

97

100

105

85

87

90

85

76

102

370

320

4,024

130

0.616

0.71

Feb.

160 

319

707

*474

493

1,030

1.600 

827

596

470

450

634

463

393

382

345

310

681

722

579

460

365

335

315

398

416

329

350

305

14,908

514

2.44

2.63

Mar.

270 

281

277

268

251

251

281 

*479

532

463

506

470

439

976

1.090

878

745

627

552

5OO

476

500

613

730

634

620

558

506

482

482

422

16,159

521

2.47

2.85

Apr.

388 

366

350

345

324

300

448 

606

494

457

428

405

371

350

334

*377

*334

305

286

277

260

260

286

264

242

242

242

234

226

ne. £O4

10,065

336

1.59

1.77

May

230 

234

310

251

230

222

231

255

247

234

226

330

277

230

226

214

210

194

190

179

175

*194

190

164

160

164

179

153

146

175

6,885

222

1.05

1.21

June

160 

294

373 242"

210

194

175 

160

156

160

207

153

142

131

124

155

212

160

146

131

187

194

255

341

214

175

212

183

153

142

5,741

191

0.905

1.01

July

m459

238

*316

310

255 

218

399

260

214

198

236

247

183

175

171

156

142

142

405

255

237

329

238

210

194

190

179

156

142

7,135

230

1.09

1.26

Aug.

135 

124

118

114

179

217

217 

149

135

124

114

111

124

155

111

*102

95

92

95

98

233

158

114

108

102

92

92

92

226

213

410

4,449

144

0.682

0.78

Sept.

281 

226

190

168

155

1,350

1.870 

658

451

356

295

251

222

198

188

314

226

279

187

246

187

171

171

262

183

171

164

*222

190

171

10,001

333

1.58

1.76

Calendar year 1955: Max 3,860 Mln 45 Mean 278 Cfsm 1.32 In. 17.85

Water year 1955-56: Max 1,S70 Mln 76 Mean 295 Cfsm 1.40 In. 19.01

Peak discharge (ba 

j.OOO cfs (7.42 ft).

ase, 2,000 efs). Feb. 6 (ll p.m.) 2,910 cfs (4.93 ft); Sept. 6 (10:30 p.m.)

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Nov. 28 to Dec. 1, Dec. 11-23, 26-28, Dec. 31 to 

Jan. 2, Jan. 7, 8, 17-28, Jan. 30 to Feb. 1, Feb. 21-25, 29, Mar. 1.
DELAWARE RIVER BASIN 259

Schuylkill River at Pottstown, Pa.

Location. Lat 40°14'30", long 75°39'05", on right bank at Hanover Street Bridge In Pottstown, Montgomery County, 0.3 mile downstream from Manatavmy Creek.

Drainage area. 1,147 sq mi.

Records available . October 1931 to September 1956 In reports of Geological Survey. August 1927 to September 1941 In reports of Pennsylvania Department of Forests and Waters.

Gage.--Water-stage recorder. Datum of gage Is 117.86 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Prior to Nov. 23, 1928, chain gage at same 

site and datum.

Average discharge.--29 years (1927-56), 1,915 cfs.

Extremes.--Maximum discharge during year, 11.700 cfs Oct. 16 (gage height, 8.22 ft); minimum, 451 cfs Jan. 28 (gage height, 1.42 ft).

1927-56: Maximum discharge, 50,800 cfs May 23, 1942 (gage height, 20.15 ft); minimum, 87 cfs Aug. 13, 1930 (gage height, 0.43 ft); minimum daily, 175 cfs Sept. 19, 

1932.

Maximum stage known, 21.0 ft Feb. 28, 1902, floodmarks (discharge, 53,900 cfs).

Remarks.--Records excellent. Some regulation at low flow by mills above station. Records of chemical analyses and water temperatures for the water year 1956 are given in 

WSP 1450.

Revisions.--WSP 756: Drainage area.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 17 to Sept. 30

1.9 

2.5 

3.0 

5.0 

7.8

885

1,450

2,040

5,210

10,800

1.4 

1.9 

2.5

435 

865 

1,450 

Note. Same as 

preceding table 

above 2.5 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3 

4

5

6

7 

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

25

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

1,170 

1,130

993 

912

885

1,840

4,100 

3,940

3,460

2,750

2,310

2,040

1,790

2,420

7,240

10.400 

8,620

*6,660

5,210

4,190

3,460

3,060

2,600

2,380

2,310

2,040

1,910

1,730

1,620 

3,850

6,100

103,120

3,326

2.90

3.34

Nov.

4.700 

3,780

3,220 

2,900

2,520

2,240

2,100 

2,040

1,850

1,730

2,500

2,380

2,040

1,910

1,790

1,350 

2,880

2,520

2,450

2,450

2,240

2,170

1,980

1,850

1,790

1,670

1,620

1,560

1,450 

1.540

67,520

2,251

1.96

2.19

Dec.

*1.540 

1,300

1,300 

1,300

1,300

1,220

1,160 

1,110

1,110

1,090

993

974

974

928

946

820 

793

883

874

775

668

634

703

784

865

874

784

676

668 

»721

651

29,218

943

0.822

0.95

Jan.

651 

651

660 

694

694

694

685 

600

524

696

964

984

993

937

793

712 

730

668

642

668

651

634

642

592

515

549

524

507

540 

950

:U850

22,594

729

0.636

0.73

Feb.

1.140 

»1,480

2,750 

2,520

1,730

2,980

6.900 

4,960

3,780

2,750

2,520

3,620

3,140

2,600

2,240

2,170 

1,910

3,760

5,040

3,940

3,220

2,680

2,240

2,100

2,320

3,140

2,240

2,240

2,380

84,490

2,913

2.54

2.74

Mar.

1,980 

1,850

1,850 

1,790

1,730

1.670

 1,850 

3,460

3,940

3,380

3,300

3,540

3,140

5,370

6,470

5,380 

4,780

4,100

3,540

3,140

2,980

2,980

3,620

4,360

4,020

3,860

3,700

3,300

3,140 

3,140

2,820

104,180

3,361

2.93

3.38

Apr.

2,600 

2,380

2,240 

2,240

2,170

2,040

2,900 

4.870

4,360

4,020

3,860

»3,620

3,300

2,980

2,820

3,060 

2,900

2,450

2,240

2,040

1,910

1,790

1,910

1,980

1,730

1,670

1,670

1,620

1,560 

1,880

76,810

2,560

2.23

2.49

May

2,310 

2,040

2,680 

2,520

2,310

2,100

5.700 

2,980

2,380

2,170

2,100

1,910

2,170

2,380

1,910

1,670 

1,620

1,500

1,450

1,400

1,340

1,500

1,540

*1,400

1,220

1,100

1,120

1,240

1,160 

1,020

1,120

56,660

1,828

1.59

1.84

June

1,200 

1,700

5.220 

2,600

2,100

1,850

1,670 

1,500

1,400

1,340

1,660

1,340

1,140

1,060

1,000

955 

1,230

1,400

1,040

910

970

1,160

1,200

1,390

1,240

1,010

984

1,200

964 

858

41,271

1,376

1.20

1.34

July

275 

8<J?

1,230 

1,610

»1,540

2,100

1,980 

1,620

2,280

2.640

1,910

1,620

1,620

1,670

1,450

1,240 

1,200

1,110

993

928

1,920

2,120

1,500

1,500

1,300

1,160

1,140

1,220

1,160 

1,070

919

45,327

1,462

1.27

1.47

Aug.

856 

820

766 

712

887

1,200

1.240 

1,060

847

748

721

660

685

757

775

*660 

617

592

549

592

1,170

1,220

838

694

634

574

558

549

797 

1,100

1,230

25,108

810

0.706

0.81

Sept.

1,170 

1,580

1,030 

865

775

923

5.990 

2,910

1,980

1,560

1,340

1,220

1,130

1,050

984

1,580 

1,300

1,280

1,030

993

1,090

910

865

1,100

1,280

1,030

964

 1,130

1,220 

1,070

41,129

1,371

1.20

1.35

Calendar year 1955: Max 35,700 Mln 274 Mean 1,890 Cfsm 1.65 In. 22.35

Water year 1955-56: Max 10,400 Mln 507 Mean 1,906 Cfsm 1.66 In. 22.61

Peak discharge (base. 7.200 cfs). Oct. 16 (3:30 a.m.) 11,700 cfs I 

cfs (6.72 ft); Mar. 14 (4 p.m.) 7,620 cfs (6.32 ft); Sept. 7 (8 a.m. 

* Discharge measurement made on this day.

3.22 ft); Feb. 7 (7 a.m.) 8,420 

8,850 cfs (6.88 ft).
260 DELAWARE RIVER BASIN

Perkiomen Creek at Graterford, Pa.

Location.--Lat 40°13'45", long 75°27' 10", on left bank 1,650 ft upstream from highway 

bridge at Graterford, Montgomery County, half a mile upstream from Landis Brook, and 

2? miles north of Collegeville.

Drainage area. 279 sq mi.

Records available.--October 1931 to September 1956 in reports of Geological Survey. June 

1914 to September 1916, October 1916 to September 1926 (gage heights and discharge 

measurements only), and October 1926 to September 1941 in reports of Pennsylvania 

Department of Forests and Waters. Prior to October 1950, published as "at Graters 

Ford."

Gage.--Water-stage recorder. Datum of gage is 112.66 ft above mean sea level, datum of 

T929, supplementary adjustment of 1943. June 1914 to Sept. 13, 1927, chain gage at 

site 1,650 ft downstream at datum 3.29 ft lower, and Sept. 7, 1921, to Sept. 13, 1927, 

staff gage at present site and datum (both gages used 1921-27).

Average discharge.--32 years (1914-16, 1926-56), 401 cfs.

Extremes.--Maximum discharge during year, 19,100 cfs Oct. 15 (gage height, 12.72 ft), from 

rating curve extended above 12,000 cfs as explained below; minimum, 21 cfs Aug. 19 

(gage height, 0.99 ft).

1914-56: Maximum discharge, 39,900 cfs July 9, 1935 (gage height, 18.26 ft), from 

rating curve extended above 12,000 cfs on basis of slope-area determination at gage 

height 16.23 ft; minimum, 4.7 cfs Oct. 5, 1941; minimum daily, 5.6 cfs Oct. 5, 1941.

Remarks.--Records good except those for periods of ice effect or backwater from rock dam, 

which are fair.

Revisions (water years). WSP 756: Drainage area. WSP 1171: 1935(M). WSP1382: 1932- 

33, 1935, 1937, 1942, 1947, 1948(M), 1949(P), 1950(M), 1951-52(P).

Rating tables, water year 1955-56, except periods of Ice effect or 

backwater from rock dam (gage height, In feet, and discharge, 

In cubic feet per second)

1.2 

1.6 

2.0

Oct. 1 to Jan. 30

166

314

589

980

3,340

7,880

10,900

Jan. 31 to Sept. 30

128

235

635

1,000

3,540

5,020

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

181

144

118

109

102

498

570 

859

565

323

252

222

188

1,870

10,800

2,680

l.SfiO

*785

*532

407

347

305

271

259

275

240

225

208

197

708

632

26,532

355

3.06

3.54

Nov.

354

280

252

240

218

204

197 

214

197

188

580

382

280

255

240

264

546

240

228

252

248

301

263

255

225

211

204

194

140

*150

7 , 602

253

0.907

1.01

Dec .

150

152

160

172

172

155

141 

138

130

125

115

105

100

110

120

120

115

110

110

100

94

88

84

90

95

100

105

98

89

*76

9i3

3,615

117

0.419

0.48

Jan.

98

94

104

111

113

110

110 

150

160

160

214

232

284

236

170

160

130

130

125

120

120

115

120

105

100

90

80

85

106

1,250

1,080

6,262

202

0.724

0.83

Feb.

*404

1,170

2,350

904

912

2,020

3,710 

986

689

557

604

1,100

583

423

434

429

333

4,230

1,780

808

545

350

290

273

459

982

489

1,090

688

29,592

1,020

3.66

3.94

Mar.

411

417

417

388

518

*333

665 

3,650

1,330

723

697

779

648

4,990

1,990

979

946

914

716

794

751

823

1,320

1,990

1,210

1,920

2 , 000

1,280

938

1,220

36,495

1,177

4.22

4.86

Apr.

651

501

452

429

411

333

1,340 

5,910

2,230

1,430

779

590

495

429

417

1,090

*779

513

470

394

355

323

350

323

282

318

335

292

268

292

20,779

693

2.48

2.77

May

254

240

591

308

268

235

2,870 

903

564

417

535

297

508

287

240

210

179

171

161

148

140

131

*145

134

116

111

118

148

118

109

116

10,170

328

1.18

1.36

June

128

134

282

156

137

118

104 

96

87

100

148

106

87

81

75

85

108

74

68

66

72

98

85

104

106

77

72

96

87

68

3,145

105

0.376

U.42

July

54

52

72

85

*74

118

98

77

118

152

102

66

57

64

57

46

44

44

44

66

394

32T

139

168

128

94

83

110

174

102

74

3,280

106

0.380

0.44

Aug.

57

47

44

35

54

116

128 

98

68

52

42

35

32

58

*42

35

31

28

25

26

213

213

98

74

66

62

50

49

172

144

91

2,265

73.1

0.262

0.30

Sept.

91

94

104

72

61

59

141

100

70

59

52

52

50

47

49

70

77

85

70

64

64

56

54

61

68

57

52 *~72

96

79

2,126

70.9

0.254

0.28

Calendar year 1955: Max 13,900 Mln 13 Mean 398 Cfsm 1.43 In. 19.33

Water year 1955-56: Max 10,800 Mln 25 Mean 415 Cfsm 1.49 In. 20.23

Peak discharge (base efs).--Oct. 15 (1 p.m.) 19,100 cfs (12.72 ft); Feb. 6 (10:30 p.m.

7,370 cfs (7.70 ft); Feb. 18 (3:30 p.m.) 8,220 cfs (8.20 ft); Mar. 14 (4:30 p.m.) 11,500 cfs 

(9.90 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ic

28. 30, Feb. 22, 23. Backwater from rock dam June 27 to July 5, July 7-9, 11-21, 26-28, July 30 to 

Aug. 5, Aug. 8-21.

2, Jan. 6-8, 15-
DELAWARE RIVER BASIN 

Schuylkill River at Philadelphia, Pa.

261

Location. Lat 39°58'00", long 75°11'20", on right bank just upstream from Fairmount Dam 

in Philadelphia, Philadelphia County, 8.4 miles upstream from mouth.

Drainage area. 1,893 sq mi.

Records available. September 1931 to September 1956. Records for January 1898 to Decem-

 her 1912, published in WSP 35, 48, 65, 82, 97, 125, 166, 202, 241, 261, 281, 301, 381, 

have been found to be unreliable and should not be used.

Gage. Water-stage recorder and concrete control. Datum of gage is 5.74 ft above mean sea 

level, datum of 1929.

Average discharge.--25 years, 3,009 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 33,500 cfs Oct. 15 (gage height, 10.12 ft); minimum daily, 410 cfs Aug. 20.

1931-56: Maximum discharge, 96,200 cfs (not previously published) Aug. 24, 1933 

(gage height, 14.7 ft, from floodmark), from rating curve extended above 46,000 cfs; no 

flow over dam at times; minimum daily, 7 cfs Oct. 9, 1941 (leakage through lock).

Maximum stage known, 17.0 ft Oct. 4, 1869 (discharge, 135,000 cfs, from rating curve 

extended above 46,000 cfs). Flood of Mar. 1, 1902, reached a stage of 14.8 ft (discharge, 98,000 cfs) .

Remarks.--Records good except those for periods of doubtful or no gage-height record and 

those below 1,000 cfs, which are poor. Flow regulated by reservoirs above station. 

Records of daily discharge do not include diversion above station by city of Philadelphia for municipal water supply. Records of chemical analyses and water temperatures 

at Belmont Filter Plant (1.6 miles upstream) and at Passayunk and Schuylkill Avenues 

( 5.7 miles downstream) and suspended sediment loads at Manayunk (5 miles upstream) for 

the water year 1956 are given in WSP 1450.

Revisions (water years). WSP 756: Drainage area. See also Records available. Revised 

figures of discharge, in cubic feet per second, for high-water period in the water year 

1945, superseding those published in WSP 1031, are given herewith: 

Sept. 11, 1945.......... 6,640

Month

Water year 1944-45. 

Calendar year 1945.

Cfs-days

142,168

1,135,016 

1,351,015

Observ

Maximum

35,700

35 , 700 

35,700

ed

Minimum

878

212

523

Mean

4,739

3,110 

3,647

(cfs)t

283

299 

291

Mean

5,022

3,409 

3,938

Adjusted

Per square 

mile

2.65

1.80 

2.08

Runoff in 

inches

2.96

24.43 

28.23

t Diversion by city of Philadelphia.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

1,120 

1,290

a 1,100

a93O

a890

a87O

2,680

5,100

5,580

3 , 880

3,190

2,680

2,290

2,530

£1.900

17,800

12,700

9,660

*7,280

5 , 820

4,740

4,040

3 , 550

3,140

2,980

2,780

2,490

2,250

2,150 

3 , 160

7,340

147,910

4,771

294

Nov.

6,180 

4,920

4,220

3,660

3,290

,980

,730

,640

,540

,340

,240

,04O

,030

,68O

,540

,440

,080

,550

,140

,290

,140

,980

,880

,640

,540

,340

,250

,150

2,010 

1,770

91,230

3,041

300

Dec.

1,680 

1,68O

1,630

1,750

1,730

1,630

1,450

1,370

1,410

1,370

1,240

1,080

1,080

1,O8O

1,080

1,000

892

892

966

892

638

542

638

781

929

966

855

707

606 

67O

707

33,921

1,094

305

Jan.

606

574

606

638

67O

670

670

638

446

659

1,Z50

1,730

1,680

1,590

1,160

929

929

744

670

781

781

670

707

6O6

542

478

446

478

542

2,040

5^950

30,880

996

297

Feb.

2,560 

2,840

7,590

5,460

3,930

4,870

14 . 800

8,840

6,OOO

4,800

4,O40

5,220

5,340

4,O4O

3,500

3,390

3,080

8,230

10,700

6,560

5,160

4,100

3,390

3,030

3,140

4,980

3,990

3,820

4,270

151,670

5,230

286

Mar.

3,240 

2,880

2,880

a2 , 8OO

a2,300

a2,£OO

a2 , 60O

a7,000

a8, 000

5,46O

4,740

5,340

4,680

g!2,OOO

gl4,2OO

alO.OOO

a8,000

a6,600

a5 , 80O

a5,000

a4,50O

a4,2OO

a5,70O

a6 , 800

a6,000

a6,20O

*a6,200

a6,600

a5,100

a5 , 800

a5, i-OO

178,020

5,743

285

Apr.

a4,500 

a3 , 900

a3 , 60O

a3,500

a3 , 4OO

a3,200

4,950

12.400

10,000

7.88O

6,300

*a5,200

a4,80o

4,740

4,330

5,400

*5,520

4,330

3,820

3,500

3,240

3,030

2,930

3,03O

2,880

2,730

2,780

2,680

2,540 

2.490

133,600

4,453

277

May

3,080 

2,980

a3, 400

a3,300

3,240

2,980

6,910

5,520

3,880

3,240

3,030

a2,7OO

a2 , 700

a2,800

a2,500

2,440

2,200

2,150

2,100

2,010

1,910

1,770

1,860

1 , 820

1 , 820

1,630

1,450

1,630

1,630 

1,450

1^440

81,570

2,631

283

June

1,930 

1,910

3,440

3,710

2,780

2,440

2,150

1,910

1,730

al,700

a2,100

1,860

1,410

1,160

1,OOO

1,200

al,100

al,50O

1,330

1,000

966

1,2OO

al,400

al,700

1,770

1,240

1,000

1,080

1,290

49,935

1,664

308

July

818 

744

929

al,300

al,800

a2 , 500

2,490

L.2OO

2,290

3,390

2,680

2,010

1,910

1,860

1,860

1,540

1,330

1,240

1,120

l.OOO

2,820

5.440

2,440

1,77O

1,860

1.5OO

1,290

1,580

1,630

1,370

1,120

55,831

1,801

309

Aug.

966 

855

818

781

929

1,290

1,770

1,500

1,080

892

744

744

606

606

670

670

510

a470

a430

a41O

1,270

1,910

1,290

744

a6EO

a550

a500

a460

a430 

716

1,180

26,411

852

323

Sept.

1,200 

al,300

a 1,400

892

658

750

3,780

4.650

2,640

1,860

1,500

al,350

al,200

al,100

al,050

al.100

1,450

1,200

1,040

a980

a910

a980

a920

al,050

al,200

al,200

al,0oo

1,290

1,120

1,O8O

41,810

1,594

298

Adjusted for diversion

Mean 

Cf am 

In.

5,065 

2 . 68 

3.09

3,341 

1.76 

1.96

Calendar year 1955: 

Water year 1955-56:

1,399 

0.739

0.85

1,293 

0.683

0.79

5,516 

2.91 

3.14

6,028 

3.18 

3.67

4,730 

2.50 

2.79

2,914 

1.54 

1.78

Observed

Max 65,200 Mln 116 Mean 2,592 

Max 21,900 Min 41O Mean 2,795

1,972 

1.04

1.16

2,110 

1.11 

1.28

1,175 

0.621 

0.72

1,692 

0.894 

1.00

Adjusted

Mean 2,894 Cfsro 1.53 In. 20.76 

Mean 3,092 Cfsm 1.63 In. 22.23

Peak discharge fbase, 18,OOP cfs).--Oct. 15 (6:30 p.m.) 35.5OO cfs (10.12 ft); Mar. 14 (11:30 

p.m.) 24,200 cfs (9.22 ft). * Discharge measurement made on this day.

t Diversion, in cubic feet per second, for municipal water supply; furnished by city of Philadelphia.

a Doubtful or no gage-height record; discharge estimated on basis of records for station at 

Pottstom and on Perklomen Creek at Graterford.

g Computed from frequent Telemark-gage readings by U. S. Weather Bureau.

505690 O - 59 - 18
262 DELAWARE RIVER BASIN

Mantua Creek at Pitman, N. J.

Location. Lat 39°44'14", long 75°06'53", on left abutment of Wadsworth Dam, 0.9 mile east 

of Pitman, Gloucester County, and 2 miles upstream from Porch Branch.

Drainage area. 6.75 sq mi.

Records available.--April to August 1940, May 1941 to September 1956.

gage. Water-stage recorder above concrete dam. Datum of gage is 68.51 ft above mean sea 

level, datum of 1929.

Average discharge. 15 years (1941-56), 11.7 cfs.

Extremes. Maximum discharge during year, 54 cfs Oct. 14 (gage height, 1.41 ft); minimum, 

5.5 cfs July 1-3 (gage height, 1.03 ft).

1940-56: Maximum discharge, about 4,200 cfs Sept. 1, 1940 (gage height, 6.64 ft), 

by computation of flow over dam and through break in earth dike; minimum, 3.2 cfs 

July 24, 25, 1944 (gage height, 0.95 ft).

Remarks. Records excellent. Slight regulation by pond Just above station.

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

1.01

1.1

1.2

1.3

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

9.5

9.5

9.5

9.5

9.5

12

12

12

13

11

10

10

10

24

3*

17

14

13

13

13

12

12

11

11

11

10

1O

12

12 

22

18

406.5

13.1

1.94

2.24

Nov.

14

13

13

12

11

11

10

10

9.5

10

17

1?

11

10

10

10

10

9.5

10

10

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

8-7 

8.7

316.4

10.5

1.56

1.74

Dec.

8.0

tt

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

*7.3

T73

7.3

7.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3 

.3

.3

234.0

7.55

1.12

1.29

Jan.

.3

.3

.3

.3

.3

8.0

8.7

8.0

8.0

14

15

TS

11

10

10

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

8.7

8.7

8.0

8.0

8.0

8.7 

14

14

296.3

9.56

1.42

1.63

Feb.

10

14

16

13

14

13

18

13

11

11

12

14

12

11

11

11

11

28

T3

13

12

11

11

11

13

13

11

11

11

378

13.0

1.93

2 .08

Mar.

11

11

11

11

12

10

10

16

15

12

11

*11

12

28

3T

17

20

16

16

15

15

15

16

16

14

14

13

13

13

15

13

442

14.3

2.12

2.44

Apr.

13

12

12

12

12

12

20

24

T5

15

14

12

12

12

13

16

14

13

12

12

12

12

12

12

12

14

13

11

11 

10

397

13.2

1.96

2.19

Hay

10

10

13

12

11

10

16

12

11

10

*10

10

1713-

9.5

9.5

9.5

8.7

8.0

8.0

8.0

8.0

8.0

*8.0

8.0

7.3

877

9.5

8.0 

7 .3

7 .3

306.3

9.88

1.46

1.69

June

7.3

11

16

T5

8.7

S.O

8.0

8.0

7 .3

8.O

12

8.0

7.3

7 .3

7 .3

7 .3

8.0

10

8.0

7 .3

7 .3

8.7

8.0

9.5

8.0

6.7

6.7

6.1

6 . 1

248.0

8.27

1.23

1.37

July

6.1

5.5

6.7

6.7

11

10

8.0

7.3

12

8.0

*7.3

6.7

7 .3

8.0

7.3

7.3

7.3

7.3

6.7

6.7

30

14

11

10

9.5

9.5

10

9.5

8.7 

8 . 7

282.1

9.10

1.35

1.55

Aug.

8.0

8.0

7.3

7 .3

11

12

11

9.5

8.7

8.0

8.0

8.0

8.7

8.7

8.7

8.0

7 .3

7.3

6.7

677

17

TI

8.7

8.0

8.0

8.0

8.0

8.0

8.0 

7.3

268.9

8.67

1.28

1.48

Sept.

8.0

11

10

8.0

8.0

15

27

TI

8.7

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

*8.0

6.7

6.7

6.7

6.7

9.5

8.7

7.3

8.0

11

8.7 

8 .0

274.7

9.16

1.36

1.51

Calendar year 1955 : Max 77 Min 4.5 Mean 9.95 Cfsm 1.47 In. 20.00

Water year 1955-56: Max 34 Mln 5.5 Mean 10.5 Cfsm 1.56 In. 21.21

Peak discharge (base. 50 efs).--oet. 14 (12 p.m.) 54 efs (1.41 ft). 

Discharge measurement made on this day.
DELAWARE RIVER BASIN 263

Chester Creek near Chester, Pa.

Location. Lat 39°52'10", long 75°24'30", on right bank 10 ft upstream from Dutton Mill 

Bridge and 3 miles northwest of Chester, Delaware County.

Drainage area.--61.1 sq mi.

Records available.--October 1931 to September 1956 in reports of Geological Survey. August 1931 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 23.41 ft above mean sea level (Pennsylvania 

Railroad benchmark).

Average discharge.--25 years, 80.4 cfs.

Extremes. Maximum discharge during year, 2.620 cfs July 21 (gage height, 7.98 ft); minimum, 20 cfs Jan. 8 (gage height, 0.63 ft).

1931-56: Maximum discharge, 14,400 cfs Nov. 25, 1950 (gage height, 16.21 ft, from 

floodmark), from rating curve extended above 2,400 cfs on basis of contracted-opening 

determination at gage height 13.57 ft; minimum, 0.3 cfs Aug. 7, 1934 (gage height, 

0.28 ft); minimum daily, 6.5 cfs Sept. 25, 1941.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Revisions (water years).--WSP 756: Drainage area. WSP 1202: 1932, 1935(M), 1939, 

 1942(M), 1943(P). 1946-49(P , 1950. WSP 1382: 1933, 1934(M), 1935-36, 1938, 1939(P), 

1940, 1945, 1948(P), 1950(M;, 1951, 1952(M).

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1-31

0.9 

1.2 

1.5 

2.0 

2.5

31

54

84

154

247

0.7 

1.0 

1.5 

2.0

Nov. 1 to Sept. 30 

24

91

161

3.0 

4.0 

5.0

351

616

960

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

43

37

35

34

34

58

56

81

62

44

40

37

36

60

236

94

61

52

*47

44

42

41

39

40

40

38

38

38

40

166

70

1,783

57.5

0.941

1.09

Nov.

50

43

41

40

38

36

36

44

39

42

116

58

48

44

42

41

40

38 

41

47

44

51

44

43

41

40

39

39

36

35_

1,336

44.5

0.728

0.81

Dec .

*36

36

39

41

40

38

35

35

36

39

35

32

34

34

33

32

31

30 

31

32

32

31

28

32

34

32

30

26

*2?

31

31

1,035

33.4

0.547

0.63

Jan.

32

30

31

32

32

32

31

30

37

46

106

97

63

52

44

41

42

38 

36

38

36

35

35

35

33

31

30

29

3T

PATj 4H

1,595

51.5

0.843

0.97

Feb.

68

*322

206

130

142

192

284

110

89

79

76

90

71

64

69

62

60

399

147

90

74

61

58

56

95

111

75

80

69

3,429

118

1.93

2.09

Mar.

66

73

75

72

70

68

64

*134

99

70

68

73

74

609

2l2

220

242

130 

120

117

117

146

209

212

134

129

120

102

110

126

99

4,160

134

2.19

2.53

Apr.

90

87

89

93

92

83

243

354

TTT

122

107

99

»95

92

96

155

115

96

91

87

83

81

80

79

78

102

90

81

79

73

3,283

109

1.78

2.00

May

67

77

98

79

71

69

132

81

70

69

66

65

"94 203

70

66

61

60 

60

60

56

57

66

*57

52

52

58

57

50

48 

cToo

2,227

71.8

1.18

1.36

June

515

110

124

78

66

60

55

52

51

58

108

57

50

46

44

58

71

51 

48

44

49

53

76

134

56

47

74

65

47

il

2,390

79.7

1.30

1.45

July

42

44

270

66

57

*57

55

48

222

73

53

49

44

48

46

47

48

42 

41

41

949

12?

80

70

66

55

56

52

51

46

43

2,990

96.5

1.58

1.82

Aug.

42

41

39

39

67

60

64

48

41

39

36

35

36

36

*35

32

32

31 

30

3T

~~5$ 130

45

40

37

35

33

31

38

60

52

1,374

44.3

0.725

0.84

Sept.

66

120

80

60

70

280

52

36

32

31

30

30

29

29

28

34

32

30 

26

30

27

26

28

64

36

30

*28

33

31

30

1,458

48.6

0.795

0.89

Calendar year 1955: Max 2,070 Mln 12 Mean 61.9 Cfsm 1.01 In. 13.75

Water year 1955-56: Max 949 Mln 26 Mean 73.9 Cfsm 1.21 In. 16.48

Peak dlscharjse (base. 1,400 cfs). June 1 (2 a.m.) 1,830 cfs (6.75 ft); July 21 (7 a.m.) 2,620 cfs

(7.98 ft).

* Discharge measurement made on this day.

Note. No gage-height record Aug. 23 to Sept. 7, Sept. 28-30j discharge estimated on basis of recorded range In stage and records for nearby stations. Stage-discharge relation affected by Ice 

Dec. 11-29, Dec. 31 to Jan. 2, Jaji. 8, 9, 18-28, Feb. 1, 22-24, Mar. 18, 19.
DELAWARE RIVER BASIN

Christina River at Coochs Bridge, Del.

Location. Lat 39°38'16", long 75°43'46", on left bank at downstream side of highway 

bridge 0.3 mile south of Coochs Bridge, New Castle County, 3.3 miles upstream from 

Muddy Run, and 3.5 miles south of Newark.

Drainage area.--20.5 sq mi.

Records available.--April 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 25.6 ft above mean sea 

Tevel, datum of 1929. Prior to Sept. 14, 1944, wire-weight gage on upstream side of 

bridge at same datum.

Average discharge.--13 years, 25.8 ofs.

Extremes.--Maximum discharge during year, 1,500 cfs July 21 (gage height, 10.44 ft); minimum daily, 3.1 cfs Jan. 8.

1943-56: Maximum discharge, 2,620 cfs May 1, 1947 (gage height, 12.41 ft); minimum 

daily, 0.4 cfs July 26, 1944, Aug. I, 1954.

Remarks. Records fair except those for periods of ice effect, which are poor. Low and 

medium flow regulated by mill above station.

Rating tables., water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 7 Apr. 8 to Sept. 3O

1.9

2.0 

2.2 

2.5 

3.0

1.7

3.4

8.0

18

37

3.5 66

4.0 105

5.0 197

6.0 325

8.O 70O

1.9

2.0 

2.2 

2.5 

3.0

2.5

4.2

8.9

20

44

4.0 107

5.0 199

6.0 325

8.O 7OO

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfam

In.

Oct.

9.3

7.2

11

8.0

6.1

11

12

35

15

12

8.9

8.9

8.5

10

30

13

12

9.6

8.7

9.3

8.6

5.2

6.0

11

8.9

9.3

*8.5

7.6

5.4

152 ~2T

489.0

15.8

0.771

0.89

Nov.

13

11

10

9.2

7.1

7.5

13

9.6

10

9.6

38

16

13

14

11

11

11

8.0

9.3

13

15

11

12

7.9

13

7.4

8.1

12

8.7

9 . 8

349.2

11.6

O.566

0.63

Dec.

8.4

8.8

6.2

7.9

IS.

8.7

8.0

8.3

9.0

7.0

b6. 8

blO*7.o

8.1

8.2

6.9

i-J.

6.2

10

6.9

6.4

5.4

6.2

5.3

6.7

6.9

9.1

5.7

6.4

5.3

7.7

230.2

7.43

0.362

0.42

Jan.

7.3

3.7

5.8

7.8

*7.4

6.4

5.2

b3.1

b7.4

9.2

16

21

17

11

9.6

12

7 .5

10

8.8

8.9

8.1

b7 .0

bll

6.3

7.2

9.7

6.8

4.9

10

167

65

488.1

15.7

0.766

0.89

Feb.

19

171

81

82

62

130

*127

32

24

21

21

31

20

17

21

19

17

309

40

24

19

16

15

14

25

27

18

17

15

1,434

49.4

2.41

2.60

Mar.

14

17

17

15

14

14

12

*75

31

18

23

26

34

594

66

152

97

37

29

31

49

74

56

36

23

22

20

18

23

29

*20

1,686

54.4

2.65

3.06

Apr.

17

16

18

19

18

18

173

125

38

26

22

20

19

18

19

50

27

20

18

16

15

15

15

15

15

22

18

16

15

14

857

28.6

1.40

1.55

May

13

16

23

17

16

13

42

19

*14

14

13

12

12

12

11

9.4

9.3

9.1

9.1

11

11

9.1

8.8

8.9

11

7.8

11

11

9.5

7.5

976

4OO.1

12.9

0.629

0.73

June

18

21

20

11

10

8.4

*9.8

9.7

6.7

8.4

33

11

7.4

5.9

7.5

45

19

18

11

8.6

7.5

10

8.0

52

9.4

8.5

8.4

9.5

11

5.6

419.3

14.0

0.683

0.76

July

6.0

4.5

7.8

6.0

12

11

7.4

23

201

15

11

7.6

7.5

5.1

4.5

*8.1

6.1

6.0

6.3

4.7

*630 ~3T

19

15

14

12

21

38

20

12

11

1,183.6

38.2

1.86

2.15

Aug.

9.3

7.6

9.1

5.8

159

26

16

12

9.6

13

7.6

7.3

7.5

7.2

8.5

7.5

4.7

6.6

5.3

9.3

*34

12

10

8.4

5.3

5.2

9.2

7.5

6.6

6.0

7.5

450.6

14.5

0.707

0.82

Sept.

7.5

11

7.3

10

6.2

6.2

12

5.6

4.6

9.5

5.4

5.9

4.7

4.4

6.0

5.7

8.3

7 .0

4.0

6.4

6.1

4.6

3.4

10

*8.0

7.2

11

~6.3 20

7.3

221.6

7.39

0.360

0.40

Calendar year 1955: Max 80O Min 1.1 Mean 22.4 Cfsm 1.O9 In. 14.82

Water year 1955-56: Max 63O Min 3.1 Mean 22.4 Cfsm 1.O9 In. 14.90

Pealc discharge (base. 1.10O cfs). Mar. 14 (2:30 p.m.) 1,270 cfs (9.87 ft)j July 21 (9 a.m.) 1,500 

cfs (10.44 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
DELAWARE RIVER BASIN 265

White Clay Creek above Newark, Del.

Location. --La t 39°42'50", long 75°45'35", on downstream side of right abutment of Tweeds 

Mill Bridge, 0.9 mile downstream from small tributary, 1.7 miles southeast of DelawareMaryland-Pennsylvania State corner, 2.1 miles downstream from Pennsylvania -Delaware 

State line, 2.2 miles north of Newark, New Castle County.

Drainage area . 66.7 sq mi.

Records available . February 1952 to September 1956.

Gage. Water-stage recorder. Datum of gage is 78.6 ft above mean sea level, datum of ~

Extremes . Maximum discharge during year, 1,930 cfs July 21 (gage height, 6.09 ft); minimum, 22 cfs Jan. 18 (gage height, 0.94 ft), result of freezeup; minimum daily, 27 cfs 

Sept. 5, 19.

1952-56: Maximum discharge, 4,050 cfs Aug. 18, 1955 (gage height, 9.21 ft), from 

rating curve extended above 1,800 cfs by logarithmic plotting; minimum, 4.6 cfs Dec. 7, 

1954 (gage height, 0.55 ft), result of freezeup; minimum daily, 10 cfs Aug. 3, 4, 1955.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Records do not include a mean discharge of 0.17 cfs diverted above 

station by plant of E . I . du Pont de Nemours & Co .

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

1.0

1.3 

1.6 113

2.0 

3.0

4.0

212

555

920

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

50

43

42

41

41

59

54

87

61

48

44

42

42

67

87

53

49

43

42

39

39

38

38

39

39

39

*39

38

41

127

62

1,573

50.7

0.760

0.88

Nov.

49

45

44

43

42

43

43

45

43

44

84

53

48

45

44

45

45

43

47

50

49

54

*49

48

45

45

44

44

41

4?

1,406

46.9

0.703

0.78

Dec.

b41

41

43

44

43

41

39

41

42

43

39

a37

a36

a36

a39

a35

a34

a34

a36

a32

a31

a30

a32

a34

a39

a37

a32

a30

a30

a31

1,135

36.6

0.549

0.63

Jan.

a31

a30

a36

a38

*36

b35

b32

a28

a32

44

61

68

54

45

41

39

42

b37

b35

b38

b35

a34

a36

a33

a31

a33

a32

a31

a40

a280

130

1,517

48.9

0.733

0.85

Feb.

56

4^1

186

173

168

298

307

115

95

88

88

100

*80

72

76

73

70

311

111

83

73

62

b60

b56

76

85

65

64

59

3,571

123

1.84

1.99

Mar.

57

59

58

54

53

54

58

*102

81

62

72

73

72

600

177

188

194

128

109

104

108

124

165

155

104

99

92

86

99

104

*86

3,577

115

1.72

1.99

Apr.

80

80

83

88

86

80

228

268

135

106

97

90

88

86

88

133

106

92

88

83

80

78

76

78

78

92

83

78

75

70

2,973

99.1

1.49

1.66

May

68

72

92

80

73

70

108

78

*70

68

67

67

72

65

61

59

57

58

57

58

56

57

59

56

52

52

57

58

52

"52 50

2,001

64.5

0.967

1.12

June

407

135

126

72

62

57

54

50

50

56

145

57

50

47

44

52

49

54

47

44

54

57

48

62

47

42

43

43

39

58

2,131

71.0

1.06

1.19

July

38

47

191

54

53

48

47

48

309

67

52

47

44

43

39.

*39

42

38

37

37

~85 591

65

59

56

48

66

52

50

44

42

2,478

79.9

1.20

1.38

Aug.

41

38

36

36

79

61

53

44

41

38

36

35

35

36

34

32

31

31

30

32

92

48

38

35

33

32

32

31

29

29

34

1,233

39.8

0.597

0.69

Sept.

34

33

30

28

27

37

54

34

30

28

29

29

28

29

29

34

32

29

27

31

28

28

33

54

*35

30

43

70

43

38

1,034

34.5

0.517

0.58

Calendar year 1955: Max 1,500 Mln 1O Mean 59.9 Cfsm 0.898 In. 12.19

Water year 1955-56: Max 600 Mln 27 Mean 67.3 Cfsm 1.01 In. 13.74

Peak discharge (base, 1,500 cfs). June 1 (2:30 a.m.) 1,750 cfs (5.75 ft); July 21 (6 a.m.) 1,930 

cfs (6.09 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

stations.

b Stage-discharge relation affected by ice.
266 DELAWARE RIVER BASIN

White Clay Creek near Newark, Del.

Location. Lat 39°42'00", long 75°41'10", on left bank 300 ft upstream from Baltimore & 

Ohio Railroad bridge, 0.4 mile downstream from Pike Creek, and 3.5 miles east of Newark, 

New Castle County.

Drainage area. 87.8 sq ml.

Records available.--November 1931 to September 1936, June 1943 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 11.6 ft above mean sea level, datum of 1929. 

Tov. 17, 1931, to Sept. 30, 1936, at site 15 ft downstream at same datum.

Average discharge. 17 years (1932-36, 1943-56), 114 cfs.

Extremes . Maximum discharge during year, 3,250 cfs July 21 (gage height, 12.51 ft); minimum, 27 cfs Sept. 19 (gage height, 4.28 ft); minimum dally, 34 cfs Sept. 19.

1931-36, 1943-56: Maximum discharge, 6,230 cfs Aug. 23, 1933 (gage height, 16.05 ft, 

from floodmark); minimum, 9.1 cfs Sept. 18, 1932; minimum gage height, 3.66 ft July 26, 

1954; minimum dally discharge, 12 cfs Sept. 18, 26, 1932.

Maximum stage known, 23 ft In July 1937 (probably affected by backwater from railroad 

bridge which has since been raised and widened), from Information by Baltimore & Ohio 

Railroad.

Remarks. Records good except those for periods of ice effect or shifting control, which 

are fair. Some regulation at low flow caused by mills above station. Records do not 

include a mean discharge of 0.17 cfs diverted above station by plant of E. I. du Pont 

de Nemours & Co.

Revisions (water years) .--WSP 1051: 1933(M). WSP 1382: 1932, 1934.

Rating tables, water year 1955-56, except periods of ice effect or shifting 

control (gage height, In feet, and discharge, In cubic feet per second)

4.0 

4.5 

5.0

Oct. 1 to Jan. 30

35

157

Jan. 31 tor Sept. 30

355

600

4.3 

4.6 

5.0 115

6.0 325

8.0 900

9.0 1,300

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

61

54

*50

49

49

69

65

106

79

59

53

51

49

77

110

70

63

58

55

53

51

49

48

51

52

49

48

47

35

~5T

O (

2,000

64.5

0.735

0.85

Nov.

*65

61

59

58

56

57

58

61

58

59

~SS 104

59

57

55

57

55

52

58

62

60

65

61

60

*57

58

57

56

52

54

1,797

59.9

0.682

0.76

Dec.

53

52

53

54

55

52

50

51

52

54

50

47

46

46

50

45

44

44

46

41

39

38

41

44

52

49

41

39

39

42

40

1,447

46.7

0.532

0.61

Jan.

40

39

48

50

48

45

41

35

41

 62

74

90

72

60

53

52

54

50

49

56

48

46

49

44

40

44

42

40

60

390

252

2,114

68.2

0.777

0.90

Feb.

100

425

344

212

218

244

400

141

115

101

100

118

*98

89

95

90

89

432

Tfo

122

103

89

86

84

106

122

94

90

83

4,560

157

1.79

1.93

Mar.

79

86

83

79

11

75

79

 146

129

92

98

110

108

845

277

269

292

186

156

146

160

182

210

208

141

132

125

113

125

141

115

5,060

163

1.86

2.14

Apr.

108

103

110

117

112

105

332

338

176

139

127

118

113

110

115

172

136

113

110

103

98

96

95

95

96

117

106

98

94

90

3,842

128

1.46

1.63

May

83

92

115

101

92

84

151

TOT

 92

89

88

86

92

86

77

76

73

76

75

79

72

76

79

73

69

68

76

79

68

67

7HT Do

2,607

84.1

0.958

1.10

June

386

144

168

92

79

72

 65

61

59

65

176

65

59

55

53

118

61

65

58

54

61

69

56

87

56

49

56

52

48

44

2,533

84.4

0.961

1.07

July

43

54

222

67

67

58

56

62

429

86

64

56

50

49

46

47

50

46

45

46

1.070

134

92

80

76

65

84

112

70

59

54

3,539

114

1.30

1.50

Aug.

53

52

49

47

157

77

68

56

52

47

45

44

43

44

43

40

39

38

38

40

122

63

*49

45

42

41

41

40

39

58

43

1,635

52.7

0.600

0.69

Sept.

49

46

41

36

35

42

68

43

39

38

 37

36

36

36

37

40

41

37

34

4TJ

36

35

39

63

48

41

63

89

54

47

1,326

44.2

0.503

0.56

Calendar year 1955: Max 1,900 Mln 13 Mean 79.3 Cfsm 0.903 In. 12.24

Water year 1955-56: Max 1,070 Min 34 Mean 88.7 Cfsm 1.01 In. 13.74

Peak discharge (base, 2.600 efs).--July 21 (7:30 a.m.) 3,250 cfs (12.51 ft). 

* Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by Ice Dec. 11 to Jan. 3, Jan. 7-9, 19-29, Feb. 

Shifting-control method used Oct. 1 to Jan. 30.
DELAWARE RIVER BASIN 267

Red Clay Creek at Wooddale, Del.

Location.--Lat 39°45'52", long 75°38'08", on right bank 12 ft upstream from bridge on State 

Highway 48, 0.3 mile south of Wooddale, New Castle County, and 2.3 miles north of 

Marshallton.

Drainage area. 47.0 sq mi.

Records available. April 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 90 ft (from topographic map). Prior to Sept. 21, 1950, wire-weight gage and crest-stage indicator at 

site 10 ft downstream at same datum.

Average discharge.--13 years, 63.6 cfs.

Extremes.--Maximum discharge during year, 1,520 cfs July 21 (gage height, 5.42 ft); minimum, 8.7 cfs Oct. 29; minimum daily, 20 cfs Sept. 19, 22.

1943-56: Maximum discharge, 3,650 cfs Aug. 18, 1955 (gage height, 8.38 ft), from 

rating curve extended above 1,100 cfs by logarithmic plotting; minimum, 4.5 cfs Sept. 11, 

1951, July 31, Aug. 1, 1955; minimum daily, 7.5 cfs July 25, Aug. 1, 1954.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

1001 

1031 

1051 

1111 

1141

Water 

year

1944 

1945 

1946 

1948 

1949

Date

Jan. 4, 

July 18, 

July 23, 

Feb. 14, 

Dec. 30,

1944 

1945 

1946 

1948 

1948

Discharge 

(cfs)

1,670 

2,810 

2,510 

1,730 

1,880

Gage height 

(feet)

5.38 

7.29 

6.76 

5.5 

5.8

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Some regulation at low flow caused by mills above station.

Revisions (water years) . WSP 1141: 1948. WSP 1272: 1951(m). Revised figures of discharge, in cubic feet per second, for high-water periods in the water years 1945 and 

1948, superseding those published in WSP 1031 and 1111, are given herewith:

1945 

July 2. 160

171

320

314

161

117

1945-Con. 

July 18......... 843

19......... 382

1948 

Feb. 14......... 668

Month

July 1945. ................ 

water year 1944-45. ..... 

calendar year 1945. .....

Water year 1947-48. ..... 

Calendar year 1948 ......

Cfs-days

3,945 

24,535

27,708

3O.753 

32,358

Maximum

843 

843 

843

1,100 

1,100

Minimum

28 

11 

22

20 

25

Mean

1Z7 

67.2 

75.9

84.0 

88.4

Per square 

mile

Z.70 

1.43 

1.61

1.79 

1.88

Runoff In 

Inches

3.12 

19.42 

Z1.93

24.34 

25.61
268 DELAWARE RIVER BASIN

Red Clay Creek at Wooddale, Del. Continued

Rating table, water year 1955-56, except periods of ic 

height, in feet, and discharge, in cubic feet per

effect (gage 

second)

2.4

2.5

2.6 48

2.8 

3.0 

4.0

100

175

700

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

41

35

34

32

32

55

44

79

52

39

35

34

32

44

70

46

43

39

37

32

35

29

30

30

30

30

30

*29

£9

162

52

1,341

43.3

0.921

1.06

Nov.

41

37

34

34

34

32

32

35

34

32

75

43

37

35

34

35

32

30

35

39

37

43

39

37

34

34

32

32

29

29

1,086

36.2

0.770

0.86

Dec.

29

29

30

32

30

29

29

29

30

32

28

b27

b27

b27

29

b26

b26

b26

27

b25

a23

a22

a24

a26

28

b27

b24

a23

a23

a25

a24

836

27.0

0.574

0.66

Jan.

a24

a23

a25

*27

26

26

25

b21

24

34

59

63

46

37

32

30

32

29

30

32

29

28

29

b26

b24

b26

b25

b24

28

245

99

1,228

39.6

0.843

0.97

Feb.

44

297

124

101

110

175

198

*79

66

61

59

66

55

50

52

50

48

255

91

66

55

48

46

44

60

66

52

52

46

2,516

86.8

1.85

1.99

Mar.

43

48

48

44

43

44

46

*79

66

52

57

57

59

483

128

168

142

104

94

85

79

94

135

121

79

79

73

63

76

85

66

2,840

91.6

1.95

2.25

Apr.

61

61

61

68

68

61

180

192

107

88

79

73

70

68

73

114

82

70

68

66

61

61

59

59

59

79

66

61

59

59

2,333

77.8

1.66

1.85

May

55

59

73

61

57

55

94

61

*55

50

50

48

68

52

46

46

43

44

43

43

39

41

46

41

39

37

41

43

37

35

37

1,539

49.6

1.06

1.22

June

378

79

88

59

50

48

43

41

41

43

91

44

37

*37

34

43

41

46

37

35

43

44

37

50

37

32

32

30

E9

28.

1,677

55.9

1.19

1.33

July

27

28

193

41

59

57

55

34

280

52

41

55

52

50

28

52

52

29

28

27

*422

68

55

50

48

59

48

41

57

34

30

1,952

63.0

1.54

1.54

Aug.

30

29

28

27

55

44

45

52

29

28

26

25

26

26

25

25

24

24

25

24

87

37

*28

26

24

24

24

25

23

22

25

956

50.2

0.645

0.74

Sept.

40

59

25

24

24

27

57

25

24

23

23

25

25

22

22

25

24

25

20

24

22

20

23

43

26

24

41

55

54

28

855

27.8

0.591

0.66

Calendar year 1955: Max 1,530 Min 8.1 Mean 47.7 Cfsm 1.01 In. 13.78

Water year 1955-56: Max 483 Min 20 Mean 52.2 Cfsm 1.11 In. 15.13

Peak discharge (base. 1.800 cfs).--No peak above base. 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

stations.

b Stage-discharge relation affected "by Ice.
DELAWARE RIVER BASIN 269

Brandywine Creek at Wilmington, Del.

Location.--Lat 39°46'10", long 75°34'20", on right bank in Rockford Park, 0.2 mile down-

 stream from Henry Clay Bridge, in Wilmington, New Castle County, and 4.2 miles upstream

from mouth.

Drainage area.--314 sq mi.

Records available. December 1946 to September 1956. 

Gage.--Water-stage recorder and concrete control. Datum of gage is 68.23 ft above mean

 sea level, datum of 1929.

Average discharge.--9 years (1947-56), 469 ofs.

Extremes.--Maximum discharge during year, 5.020 cfs Mar. 14 (gage height, 7.75 ft); mini-

 mum, '40 cfs Jan. 9 (gage height, 2.25 ft), result of freezeup; minimum daily, 135 cfs 

Dec. 21.

1946-56: Maximum discharge, 17,800 cfs Aug. 19, 1955 (gage height, 13.89 ft); minimum, about 30 cfs Dec. 26, 1948, during period of ice effect; minimum daily, 62 cfs 

Aug. 2, 1954.

Remarks.--Records good except those for periods of ice effect, which are fair. Some regu-

 lation from mills above station. Records include a mean discharge of 1.90 cfs diverted 

just above station by plant of E. I. du Pont de Nemours & Co., most of which is returned below station. Records of chemical analyses, water temperatures, and suspended 

sediment loads for the water year 1956 are given in WSP 1450.

Revisions.--Revised figures of discharge, in cubic feet per second, for periods in the

 water years 1948 and 1950, superseding those published in WSP 1111 and 1171, are given 

herewith:

Month

Water year 1947-48 .......

Calendar "ear 1950. ......

Cfs -days

198,984

16,397

Maximum

393

3 710

3 100

5 590

Minimum

101

316

117

149

Mean

544

529

353

436

Per square 

mile

1 15

1 73

1 68

1 12

1 39

Runoff in 

inches

0.47

15.55

23.59

1.94

15.25

18.83

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.7 

3.0 

3.3

4.0 

6.0

122

231

425

1,020

2,830

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

330

298

263

247

247

425

484

493

518

350

298

274

263

330

654

536

552

402

337

304

292

280

269

269

280

263

258

*247

253

622

521

11,159

360

1.15

1.32

Nov.

337

298

285

274

269

258

263

304

280

274

502

425

324

298

280

269

269

253

258

298

285

318

318

285

*269

258

253

258

231

218

8,711

290

0.924

1.03

Dec.

222

222

236

253

253

231

222

218

227

231

200

b!90

b!85

b!85

b210

183

b!80

blSO

b!95

b!70

b!35

b!40

183

200

205

b205

b!70

b!45

b!60

blSO

b!45

6,061

196

0.624

0.72

Jan.

b!45

b!40

180

*183

183

180

176

139

143

263

402

493

395

304

242

227

227

200

b!90

b205

b!95

blSO

b!85

b!65

b!60

blSO

blSO

b!45

183

924

1,670

8,754

282

0.898

1.04

Feb.

450

1,040

1,640

824

688

952

2,470

918

*612

527

493

612

510

434

418

410

380

1,420

1,110

620

518

442

402

380

468

570

450

434

402

20,594

710

2.26

2.44

Mar.

350

372

372

350

550

530

380

1,040

*1,050

544

493

570

527

2,600

2,020

1,130

1,300

994

799

765

731

774

978

1,240

935

824

978

782

731

850

688

25,827

833

2.65

3.06

Apr.

620

*595

595

620

595

561

1,240

1,850

1,190

850

722

680

638

620

620

824

748

620

604

570

552

544

536

527

510

570

570

527

502

484

20,664

689

2.19

2.45

May

459

468

578

518

468

450

680

570

476

*450

434

425

620

595

442

410

380

380

372

365

344

344

425

402

344

330

344

380

330

311

324

13,418

433

1.38

1.59

June

902

468

867

484

372

330

304

*292

280

304

544

344

292

263

236

242

404

454

304

258

269

285

561

857

493

292

280

263

242

218

11,704

390

1.24

1.39

July

213

213

1,080

459

311

311

298

269

561

358

269

253

227

258

247

227

253

*218

205

196

2.560

740

476

395

365

318

324

318

269

247

227

12,465

402

1.28

1.48

Aug.

218

218

213

205

311

418

395

292

242

222

205

196

191

196

191

180

173

169

162

165

552

444

247

*213

196

176

176

173

169

165

183

7,256

234

0.745

0.86

Sept.

176

459

222

169

155

191

546

247

176

162

151

148

148

142

148

169

176

158

139

148

145

136

148

*252

196

162

162

395

350

222

6,198

207

0.659

0.73

Calendar year 1955: Max 9,660 Min 70 Mean 395 Cfsm 1.26 In. 17.06

Water year 1955-56: Max 2,600 Min 135 Mean 418 Cfsm 1.33 In. 18.11

Peak discharge (base, 5,500 cfs).--Jan. 31 (l a.m.) 3,670 cfs (6.74 ft); Feb. 7 (5 a.m.) 4,030 cfs 

(7.03 ft)j Mar. 14 (10:30 p.m.) 5,020 cfs (7.75 ft)j July 21 (6 a.m.) 4,660 cfs (7.50 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
270 DELAWARE RIVER BASIN

Shellpot Creek at Wilmington, Del.

Location. Lat 39°45'39", long 75°31'10", on right bank 100 ft northeast of intersection 

 of 45th and Pine Streets in Sellers Park, 700 ft downstream from highway bridge on

North Market Street in Wilmington, New Castle County, and 0.2 mile downstream from

Matson Run.

Drainage area. 7.46 sq mi.

Records available.--December 1945 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 25 ft (from topographic map).

Average discharge.--10 years (1946-56), 9.50 cfs.

Extremes. Maximum discharge during year, 1,330 cfs July 21 (gage height, 4.92 ft), from 

rating curve extended above 620 cfs as explained below; minimum, 0.5 cfs Sept. 23.

1945-56: Maximum discharge, 4,080 cfs July 9, 1952 (gage height, 7.97 ft, in gage 

well, 8.6 ft, from floodmarks), from rating curve extended above 620 cfs on basis of 

computation of flow over dam at gage height 6.52 ft, and contracted-opening determinations at gage heights 6.52 and 7.97 ft; minimum, 0.3 cfs Oct. 12, 16, 25, 1947, Sept. 17, 

1948, July 25, Oct. 8-10, 14, 15, 1954.

Maximum stage known since at least 1940, that of July 9, 1952. Flood of Aug. 1, 

1945, reached a stage of about 8.5 ft, from floodmarks.

Remarks. Records good.

Revisions (water years).--WSP 1382; 1948(m).

Rating table, water year 1955-56 (gage height. In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Oct. 27-29, Aug. 9, 10)

0.6

1.3

2.8

4.8

8.6

15

1.9 

2.1 

2.3 

2.5 

3.0

51

93

ISO

370

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2.3

1.1

1.0

tf

4.1

2.0

32

4.5

2.1

1.2

1.1

1.0

12

20

3.7

2.3

1.7

1.4

1.2

1.1

1.0

.9

1.2

1.1

l.O

l.O

1.1

1.3

17

2 9

125.9

4.06

0.544

0.63

Nov.

1.5

1.3

1.2

Iff

1.2

1.3

1.3

1.2

*4.2

15

3.1

2.0

1.7

1.6

1.6

1.4

1.2

4.4

5.0

2.9

3.5

2.4

1.8

n.e

1.4

1.3

1.4

1.2

1.1

71.1

2.37

0.318

0.35

Dec.

1.2

1.2

1.3

1.2 

1.3

1.2

1.1

1.1

1.3

1.4

1.2

1.1

l.O

1.0

1.2

1.0

.9

1.0

1.1

.9

%7

77

.7

.9

1.1

1.1

.9

.7

.7

g

.7

31.8

1.03

0.138

0.16

Jan.

0.7

.7

1.0

I'.Q

1.0

.9

.7

.9

3.9

9.3

8.1

4.6

2.9

2.4

2.3

2.8

2.3

2.0

1.8

1.7

1.6

1.8

1.3

1.2

1.2

1.0

1.0

3.6

50

14

128.8

4.15

O.556

O.64

Feb.

4.6

55

21

23

18

42

29

*8.6

6.

5.

6.

9.

5.

4.

5.

4.8

4.8

116

13

8.1

5.7

4.8

3.9

3.8

14

9.2

5.4

5.7

4.1

447.6

15.4

2.06

2.23

Mar.

3.7

4.8

5.1

4.1 

5.5

3.5

5.7

29

*9.2

5.1

5.4

6.4

9.7

199

56

34

16

11

12

19

32

56

20

9.7

8.6

6.8

6.0

11

11

6O7.7

19.6

2.65

3.03

Apr.

5.1

5.1

5.7

16 

13

8.6

109

54

18

9.7

7.6

6.8

6.0

5.7

7.6

24

9.2

6.4

5.7

5.1

4.6

4.3

4.3

4.1

4.1

12

6.4

5.1

4.8

4.1

582.1

12.7

1.70

1.90

May

5.5

6.9

9.2

6.6 

4.6

4.2

46

7.2

5.1

*4.6

3.9

5.9

13

4.8

3.7

3.1

2.4

2.4

2.6

5.7

2.5

2.4

2.8

1.8

1.7

1.7

4.1

5.1

2.3

1.7

2.6

167.9

5.42

0.727

0.84

June

9.0

5.0

9 .2

2.9 

2.1

1.7

1.6

1.4

1.6

7.4

8.9

1.8

1.6

1.3

1.4

6.6

2.O

1.6

1.2

1.1

2.9

2.5

1.6

5.9

1.6

1.1

1.9

2.4

1.1

-i!

91.5

5.04

O.40S

O.46

July

0.8

5.7

11

2.1 

2.5

1.7

1.6

1.8

43

2.8

1.9

1.8

1.1

1.1

.9

1.0

l.O

*.8

.7

2.6

285

6.8

4.1

3.2

2.4

1.8

8.3

2.4

1.8

1.4

1.2

402.1

13.0

1.74

2.00

Aug.

1.2

1.2

1.1

1.0 

9.9

4.1

3.9

1.7

1.4

1.5

1.1

1.0

l.O

1.0

1.0

^

7?

.9

1.0

2.1

18

2.5

1.2

1.0

l.O

l.O

1.0

1.0

l.O1.1

1.7

68.0

2.19

0.294

0.54

Sept.

1.2

1.2

l.O

.7 

.8

25

3.7

1.2

.9

.8

.7

.7

.8

.8

l.O

1.0

1.1

.8

.6

l.O

.7

.6

1.8

*6.3

1.3

.8

12

5.7

1.4

1.0

74.6

2.49

0.534

0.57

Calendar year 1955: Max 279 Mln 0.6 Mean 6.24 Cfsm O.836 In. 11.36

Water year 1955-56: Max 285 Mln 0.6 Mean 7.10 Cfsm O.952 In. 12.95

Peak discharge (base. 550 cfs). Mar. 14 (12:3O p.m.) 575 cfs (3.41 ft); July 21 (5 a.m.) 1,330 

cfs (4.92 ft).

* Discharge measurement made on this day.
DELAWARE RIVER BASIN 271

Salem River at Woodstown, N. J.

Location Lat 39°38'36", long 75°19'52", on right end of Memorial Lake Dam at Woodstovm,

 Salem County, a quarter of a mile upstream from small brook and 0.3 mile downstream 

from Pennsylvania-Reading Seashore Lines bridge.

Drainage area. 14.6 sq ml.

Records available.--March to September 1940, December 1941 to September 1956. Prior to October 1952, published as Salem Creek at Woodstown.

Gage.--Water-stage recorder above concrete dam. Datum of gage Is 29.49 ft above mean sea 

"level, datum of 1929.

Average discharge. 14 years (1942-56), 19.1 cfs.

Extremes. 1940: Maximum discharge during period March to September, 22,000 cfs Sept. 1

 (gage height, 7.98 ft, from floodmark), from rating curve extended above 220 cfs on 

basis of slope-area determination of peak flow; minimum, 5.9 cfs July 29 to Aug. 2.

1955-56: Maximum discharge during water year, 354 cfs July 21 (gage height, 

1.83 ft); minimum, 2.0 cfs Aug. 20 (gage height, 1.05 ft).

1939-56: Maximum discharge, that of Sept. 1, 1940; no flow for short periods during 

many years Just after waste gate was closed and water was below spillway.

Revisions.--The maximum discharge for water year 1951 has been revised to 3,740 cfs 

Nov. 25, 1950 (gage height, 4.23 ft), from rating curve extended above 220 cfs as 

explained above, superseding figure published in WSP 1202.

Remarks. Records fair. Records given herein represent flow over dam and leakage through 

waste gate.

Note. Records for March to September 1940, not previously published, are given herein.

Discharge, in cubic feet per second, water year March to September 194O

Day

1

3

2

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct. Nov. Dec. Jan. Feb. Mar.

.

-

-

-

-

.

..

«

_

-

.

~

.

_

-

_

«

-

-

-

_

_

-

.

-

.

-

^

-

16

19

-

-

-

-

Apr.

17

14

15

27

16

14

10

IT*

138

33

34

63

70

41

35

30

23

26

20

256

72

15

27

23

25

23

21

15

19

17

1,253

41.8

2.86

3.19

May

15

17

17

15

IS.

17

16

12

16

14

14

10

14

15

14

71

168

26

17

17

29

41

32

19

19

15

19

25

17

23

72

828

26.7

1.83

2.11

June

73

IQfi

14

15

15

14

15

12

10

14

14

12

12

10

10

7 2

577

12

10

8.7

7.2

7.2

7.2

10

10

12

10

12

18

8.7

496.9

16.6

1.14

1.27

July

12

10

12

10

12

12

8.7

7.2

7.2

7.2

8.7

10

10

8.7

7.2

7.2

7O

19

13

8.7

8.7

8.7

34

12

10

10

8.7

7.2

5^9

5.9

5.9

367.8

11.9

0.815

0.94

Aug.

5.9

5.9

8.7

8.7

7.2

8.6

8.7

8.7

10

8.7

7.3

7.2

8.7

16

21

10

271

65

23

21

19

12

10

10

8.7

26

20

209

43

17

15

920.9

29.7

2.03

2.35

Sept.

4,460

107

80

50

35

30

27

25

22

19

20

20

19

17

16

16

15

15

14

14

13

T3

*13

13

15

20

18

16

14

13

5,169

172

11.8

13.17

Calendar year : Max Min Mean Cfsm In.

Water year : Max Min Mean Cfsm In.

* Discharge measurement made on this day.

Note.--No gage-height record Sept. 3-30; discharge estimated on basis of available recorder graph, 

1 discharge measurement, and records for nearby stations.
SV2 DELAWARE RIVER BASIN

Salem River at Woodstown, N. J.--Continued

1955-56 (gage height, in feeb, and discharge 

cubic feeb per second)

1.06 

1.1

1.3

1.4 

1.6

92

195

Discharge, in cubic feet per second, water year October 1955 to Septembe

Day

1

2

3

4

5

6

7

8

9

10

1L

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

7.3

7.3

6.0

6.0

6.0

7.3

8.7

10

16

10

8.7

7.3

7.3

25

104

43

20

16

14

10

10

8.

8.

8.

8.

8.

8.

8.7

8.7

18

20

457.5

14.8

1.01

1.17

Nov.

12

10

10

8.7

8.7

7.3

*7.3

7.3

7.3

7.3

26

Te

10

10

10

10

8.7

7.3

8.7

12

12

10

10

10

8.7

8.7

8.7

8.7

7.3

7.3

296.0

9.87

0.676

0.75

Dec.

7.3

773

7.3

7.3

8.7

8.7

7.3

7.3

8.7

10

8.7

7.3

7.3

7.3

7.3

7.3

7.3

7.3

7.3

7.3

7.3

7.3

7.3

7.3

8.7

8.7

8.7

7.3

7.3

7.3

7.3

238.8

7.70

0.527

0.61

Jan.

7.3

7.3

7.3

7.3

7.3

7.3

7 3

7^3

7.3

16

26

22

18

14

12

12

12

10

8.7

10

10

8.7

10

8.7

8.7

8.7

7.3

7.3

7.3

45

51

399.1

12.9

0.884

1.02

Feb.

20

38

54

33

43

44

79

29

24

22

26

37

24

20

20

22

18

~50 139

26

20

16

14

14

EU

22

18

16

14

922

31.8

2.18

2.35

Mar.

14

14

16

16

14

14

14

36

39

22

18

18

£2

176

75

56

70

37

29

26

29

40

40

31

24

22

20

18

18

24

20

1,012

32.6

2.23

2.58

Apr.

16

16

16

16

16

16

39

71

31

24

20

*16

16

16

18

24

24

18

14

12

12

10

10

10

10

16

20

18

16

14

575

19.2

1.32

1.46

May

12

12

14

14

14

12

22

If

12

10

*10

10

12

12

8.7

7.3

7.3

7.3

7.3

6.0

6.0

6.0

6.0

*4.8

5.7

3.7

6.0

8.7

7.3

6.0

6.0

290.1

9.36

0.641

0.74

June

4.8

11

24

12

8.7

7.3

6.0

6.0

6.0

6.0

1U

7.3

6.0

*4.8

4.8

4.8

4.8

7.3

6.0

4.8

4.8

C.O

6.0

7.3

7.3

6.0

4.8

9.0

10

6.0

219.6

7.32

0.501

0.56

July

4.8

3.7

6.0

4.8

7.3

10

7.3

6.0

16

14

8.7

7.3

6.0

4.8

4.8

4.8

4.8

4.8

3.7

3.7

154

28

14

10

8.7

7.3

57

24

12

8.7

7.3

464.3

15.0

1.03

1.18

Aug.

6.0

6.0

4.8

4.8

8.7

12

12

8.7

7.3

*6.0

4.8

4.8

6.0

6.0

4.8

4.8

3.7

3.7

2.8

2.8

12

12

7.3

4.8

3.7

3.7

2.8

2.8

2.8

2.8

3.7

178.9

5.77

0.395

0.46

Sept.

6.0

6.0

4.8

3.7

3.7

49

92

Te

7.3

6.0

.8

.8

.8

.8

.8

.8

.8

.8

* .8

.8

.8

.8

.0

.3

.3

.8

.7

8.7

10

8.7

308.6

10.3

0.705

0.79

Calendar year 1955: Max 425 Min 0.2 Mean 12.7 Cfsm 0.870 In. 11.79

Water year 1955-56: Max 176 Min 2.8 Mean 14.6 Cfsm 1.00 In. 13.67

Peak discharge (base, 550 cfs).--July 21 (10 a.m.) 354 cfs (1.83 ft). 

* Discharge measurement made on this day.
DELAWARE RIVER BASIN 273

Alloway Creek at Alloway, N. J.

Location. Lat 75°21'35", long 39°33'55", on right bank at Alloway Lake Dam at Alloway,

Salem County, 0.8 mile upstream from Deep Run. 

Drainage area.--81.9 sq mi.

Records available. October 1952 to September 1956. 

Gage. Water-stage recorder above concrete dam. Datum of gage is 13.96 ft above mean sea

level, datum of 19S9. 

Extremes. Maximum and minimum discharges for the water years 1953-56 are contained in the

following table:

year

1953 

1954

1955 

1956

Date

Jan. 9, 1953 

Dec. 14, 1953

Aug. 13, 1955 

Mar. 14, 1956

Maximum

Discharge 

(cfs)

e388 

392

670

362

Gage height 

(feet)

t .16

.19

.50 

.15

Date

Oct. 1-13, 1958 

July 29 to 

Aug. 3. 1954 

July 23,84, 1955 

June 16,20,81, 

1956

Minimum

Discharge 

(cfs)

0 

ttl.4

.8 

3.9

Gage height 

(feet)

1.05 

1.13

t From recorded range in stage.

tt Minimum daily.

e Waste gate discharge included.

1958-56: Maximum discharge, 670 cfs Aug. 13, 1955 (gage height, 2.50 ft); no flow 

Oct. 1-13, 1952.

Remarks. Records good except those below 10 cfs and those for periods of no gage-height 

record, which are fair. Flow regulated occasionally by operation of waste gate in dam.

Rating table, Oct. 1, 1952, to Sept. 30, 1956 (gage height, in feet,

and discharge, in cubic feet per second)

(Water below crest of dam Oct. 1-13, 1952; waste gate open Nov. 22, 

23, 1952, Jan. 13-15, 1953)

1.0 0.1

.6 

2.4

5.1 

8.9

1.4

1.5 

1.7 

1.9

Discharge, In cubic feet per second, water year October 1952 to September 1953

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0

0

0

0

0

0

0

0

0

0

o

0

0

. 2

?.'.?>

4.8

6.5

6.5

7.2

7.E

6.5

6.5

7.2

7.2

8.0

8.0

7.2

8.0

8.9

8.9

120.0

3.67

0,177

0.20

Nov.

8.9

8.9

8.9

9.8

9.8

8.9

8.0

8.0

8.0

11

12

12

11

11

13

26

*23

17

15

18

78

266

78

44

33

28

25

22

19 

19

860.2

28.7

1.31

1.46

Dec.

19

19

24

26

33

82

46

33

28

25

76

*85

44

31

26

25

23

23

22

20

28

54

44

33

28

25

23

20

17 

17

22

1,021

32.9

1.50

1.73

Jan.

28

28

40

35

30

26

26

30

250

120

70

60

*52

43

31

31

29

32

35

32

32

60

40

200

130

60

45

40

35 

35

3°

1,737

56.0

2.56

2.95

Feb.

30

30

26

26

25

23

25

25

25

23

23

30

55

30

210

90

50

*38

34

31

60

67

42

33

31

30

26

26

-

1,144

40.9

1.87

1.94

Mar.

25

25

25

71

74

44

34

34

33

33

36

40

220

115

*85

240

86

55

87

70

49

40

34

48

70

81

55

42

36 

33

30

1,950

62.9

2.87

3.31

Apr.

30

30

30

30

40

36

183

122

59

56

128

65

93

120

59

90

76

51

90

60

45

35

*33

33

31

31

30

26

25

25

1,762

58.7

2.68

2.99

May

30

33

28

25

23.

28

65

47

42

34

28

23

23

*23

25

26

53

133

52

46

41

68

64

34

28

120

101

44

30 

28

54

1,399

45.1

2.06

2.38

June

78

64

38

30

25

22

30

31

23

19

15

*13

15

23

20

15

13

12

11

11

11

12

14

13

11

9.8

9.8

9.8

12 

15

625.4

20.8

0.950

1.06

July

13

11

12

12

11

11

12

16

19

13

9.8

8.9

8.9

8.0

8.0

8.0

7.2

7.2

7.2

7.2

8.9

9.8

*29

30

14

11

8.9

8.0

7.2 

7.2

7.2

351.6

11.3

0.516

0.60

Aug.

6.5

7.2

8.9

8.9

8.0

8.0

8.0

7.2

8.0

9.8

8.9

8.0

7.2

12

17_

14

14

17

14

*11

8.9

8.0

7.2

7.2

7.2

6.5

6.5

6.5

6.5

6.5

5.8

280.4

9.05

0.413

0.48

Sept.

5.8

5.1

5.1

5.1

4.5

8.3

16

16

11

8.9

7.2

7.2

7.2

6.5

7.2

7.2

7.2

6.5

6.5

6.5

8.9

8.9

8.0

7.2

7.2

7.2

7.2

8.0

8.0 

7.2

232.8

7.76

0.354

0.40

Calendar year 1952: Max - Min - Mean - Cfsm - In.

Water year 1952-53: Max 266 Min 0 Mean 31.5 Cfsm 1-44 in. 19.50

Peak discharge (base, 25O cfs). Nov. 22 (10 a.m.) 368 ofa (2.13 ft); Jan. 9 (time unknown) 

388 cfs (2.16 ft); Jan. 24 (time unknown) 299 cfa (2.06 ft); Mar. 13 (2 p.m.) 348 cfs (2.13 ft); 

Mar. 16 (6 a.m.) 348 cfs (2.13 ft); Apr. 7 (5 p.m.) 325 cfs (2.10 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Jan. 3-12, Jan. 17 to Feb. 3, Feb. 8-17, Apr. 19-22; discharge estimated on basis of recorded range in stage and records for Salem River at Woodstown.
274 DELAWARE RIVER BASIN

Alloway Creek at Alloway, N. J. Continued 

Discharge, In cubic feet per second, water year October 1953 to September 1954

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

7.2

6.5

6.5

6.5

7.2

9.0

12

11

9.8

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

9.8

9.8

9.8

9.8 

8.9

*8.9

8.0

7.2

8.0

8.0

16

57

70

406.1

13.1

0.598

0.69

Nov.

17

13

11

11

9.8

11

16

17

19

23

25

26

23

22

17

17

16

15

14

*13

13

14

21

 28 33

28

23

19

17

16

547.8

18.3

0.836

0.93

Dec.

15

14

14

14

22

27

66

48

28

34

36

28

49

233

 114

46

33

25

20

20

20 

23

22

19

17

17

16

16

16

16

15

1,083

34.9

1.59

1.84

Calendar year 1953: Max 250

Jan.

15

14

14

15

14

14

14

Ts~

14

16

15

15

14

15

22

38

30

23

35

*§§

33

30

26

31

36

31

25

22

776

25.0

1.14

1.32

Feb.

17

17

17

17

17

16

15

14

14

14

14

13

11

TT

13

14

15

15

14

14

35

55

35

27

24

22

21

21

532

19.0

0.868

9.9C

Mln 4.5

Mar.

25

68

58

97

42

31

26

23

22

20

20

20

22

40

85

50

30

23

20

20

37 

25

19

17

17

30

32

22

20

19

19

999

32.2

1.47

1.70

Apr.

19

17

16

15

15

16

*17

17

20

17

15

15

14

13

13

13

38

63

33

23

20 

17

19

26

23

20

19

31

28

22

634

21.1

0.963

1.08

May

17

16

16

40

40

23

15

17

38

33

25

19

16

14

14

13

13

12

12

12

24 

28

19

14

13

13

11

9.8

8.9

8.9

8.0

562.6

18.1

0.826

0.96

June

7.2

571

4.5

5.1

5.1

4.5

4.5

4.5

3.9

3.9

5.1

5.1

5.1

5.8

5.8

6.5

6.5

6.5

5.1

4.5

4.5 

3.9

3.9

3.4

3.4

3.4

2.9

2.4

2.0

136.5

4.55

0.208

0.23

July

2.4

2.4

2.4

2.4

2.9

3.9

3.9

5.1

4.5

3.9

3.4

3.4

3.4

3.1

8.9

7.2

5,1

3.9

3.4

5.1

5.1 

4.5

3.9

3.3

2.8

2.4

2.0

1.7

1.4

TT!

1.4

110.6

3.57

0.163

0.19

Aug.

1.4

1.4

1.4

1.7

2.0

2.0

2.0

2.5

4.5

6.5

5.8

4.5

3.4

3.4

3.4

3.4

3.4

3.4

2.9

3.4

11 

15

9.8

6.5

5.1

4.5

3.9

3.9

3.9

3.9

17

146.9

4.74

0.216

0.25

Sept.

22

12

8.0

6.5

5.1

5.1

*4.5

ITS' 3.9

4.5

28

34

15

9.8

7.2

6.5

7.2

7.2

8.0

8.9

8.9 

11

9.8

8.0

7.2

6.5

5.8

5.8

5.1

5.8

281.8

9.39

0.429

0.48

Mean 31.6 Cfsm 1.44 In. 19.57

Water year 1953-54: Max 233 Mln 1.4 Mean 17.0 Cfsm 0.7-76 In. 10.57

Peak discharge (base, 250 cfs).--Dec. 14 (4 p.m.) 392 cfs (2.19 ft).

* Discharge measurement made on this day.

Note. --No gage-height record Feb. 18 to Mar. 1, Mar. 12 to Apr. 5, July 22 to Aug. 10; discharge

estimated on basis of recorded range in stage and records for Salem River at Woodstown.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

5.8

6.5

6.5

6.5

5.8

6.5

5.1

5.1

4.5

5.1

5.1

5.1

5.1

5.1

5.1

3.9

H3.9

3.9

5.1

5.1

5.1

5.1

5.1

5.8

6.5

7.2

14

22

TT

199.4

6.43

0.294

0.34

Nov.

12

13

20

20

19

17

16

15

14

13

9.8

8.9

8.9

8.0

8.0

8.0

8.0 

7.2

772

13

69

76

33

22

17

14

12

9.8

30

30

558.8

18.6

0.849

0.95

Dec.

19

14

12

11

14

15

14

14

17

23

19

14

14

21

34

26

20 

25

38

*26

16

13

12

12

13

12

12

11

26

94

65

676

21.8

0.995

1.15

Jan.

 si 33

30

25

20

19

17

15

15

14

14

13

13

12

12

12

11 

9.8

10

9.5

9

8.5

e

8

7.5

7.5

7

6.5

6.5

6

6

415.8

13.4

0.612

0.71

Feb.

5.5

5.5

5

5

5

40

120

45

25

23

40

45

25

20

19

19

20 

20

17

16

15

15

27

38

30

25

22

20

-

712.0

25.4

1.16

1.21

Calendar year 1954: Max 100 Min 1.4

Mar.

22

25

22

31

66

62

84

42

30

25

20

17

15

14

14

20

25 

23

26

23

25

73

70

38

28

28

25

20

19

17

15

964

31.1

1.42

1.64

Apr.

14

14

14

14

13

14

15

14

13

12

11

31

81

49

40

31

23 

20

17

17

17

19

19

16

»17

20

20

17

16

16

634

21.1

0.963

1.08

May

14

13

12

11

10

9

8

7

6.5

6

7

8

9

8

7

6

5.5

.5

.5

.5

.5

* .5

.1

.5

.9

"71.4

.4

.2

8.0

213.4

6.88

0.314

0.36

June

7.2

5.8

7.2

7.2

8.9

T.Z

5.1

8.1

49

42

31

53

3g

25

19

12

.2 

.1

.1

.1

.1

.5

.5

.2

.1

.2

* .2

.1

4.5

3.9

402.5

13.4

0.612

0.68

Mean 15.4 Cfsm 0.703

July

3.4

S7T

3.4

3.4

2.9

2.4

2.4

2.4

2.0

2.0

2.4

2.4

1.7

1.7

1.4

1.4

1.4 

1.4

1.4

1.4

1.1

1.1

.8

1.1

1.7

2.0

1.7

1.7

1.4

1.1

1.1

59.1

1.91

0.087

0.10

Aug.

1.4

T77

2.0

1.7

1.7

1.4

3.5

25

26

19

19

43

*419

Too

50

20

40 

80

200

100

50

25

20

16

13

11

9.8

8.0

6.5

6.5

9.8

1,330.0

42.9

1.96

2.26

Sept.

11

9.8

8.9

7.2

5.8

5.1

5.1

4.5

4T5

4.5

5.1

5.1

7.2

7.2

7.2

6.5

5.1 

5.1

5.1

74

124

Ts

20

23

30

23

17

15

12

9.8

512.8

17.1

0.781

0.87

In. 9.55

Water year 1954-55: Max 419 Mln 0.8 Mean 18.3 Cfsm 0.836 In. 11.35

Peak discharge (base, 250 cfs1.--Aug. 13 (12 m.) 670 cfs (2.50 ft); Aug. 19 (time unknown) 370 cfs 

(2.16 ft). * Discharge measurement made on this day.

Note. No gage-height record Jan. 19 to Feb. 14, May 4-22, Aug. 14-23; discharge estimated on 

basis of recorded range in stage and records for Salem River at Woodstown.
DELAWARE RIVER BASIN 275

Alloway Creek at Alloway, N. J. Continued

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsra

In.

Oct.

9.8

8.9

8.9 

8.0

8.0

8.9

9.8

12

15

15

12

11

8.9

9.8

34

57

36

23

17

14

13

12

11

11

10

9.5

9

8.5

8

15

22

456.0

14.7

0.671

0.77

Nov.

19

16

15 

14

13

12

11

11

iT~ 9.8

22

24

20

16

14

13

12

11

12

15

16

15

14

14

13

13

12

12

11

10

421.8

14.1

0.644

0.72

Dec.

10

10

10 

10

11

12

IT

1011

12

10

8.9

8.9

8.9

8.9

8.9

7.2

7.2

8.0

7.2

7.2

6.5

6.5

7.2

8.9

8.9

8.9

7.2

7.2

7.2

7

273.8

8.83

0.403

0.46

Jan.

6.5

675

6.5

6.5

15

26

24

21

18

16

15

14

12

11

12

12

12

11

9.8

9.8

8.9

8.9

8.0

8.9

27

57.

418.3

13.5

0.616

0.71

Feb.

36

38

68 

53

60

51

104

60

40

33

31

44

40

31

28

26

26

107

T7

51

36

28

23

22

23

36

25

23

20

1,250

43.1

1.97

2.12

Mar.

19

19

20 

20

19

17

17

23

42

33

26

25

26

168

176

81

110

65

44

42

40

42

49

42

38

31

26

25

25

31

30

1,371

44.2

2.02

2.33

Apr.

25

23

22 

23

23

22

33

79

53

36

30

25

23

22

20

25

28

23

20

19

17

16

16

15

T6

20

25

23

20

17

759

25.3

1.16

1.29

May

16

14

16 

19

20

19

38

40

26

32

19

16

16

16

14

12

11

11

9.8

9.8

8.9

879

8.9

9.8

8.9

8.9

11

16

14

11

9.8

480.7

15.5

0.708

0.82

June

8.9

13

s17

13

9.8

6.5

5.8

5.1

12

15

*12

7.2

5.1

4.5

5.1

5.1

4.5

5.9

5.1

8.0

9.8

11

9.8

7.2

6.8

19

20

12

323.2

10.8

0.493

0.55

July

8.0

6.5

6.5 

6.5

7.2

11

11

8.9

26

30

16

11

8.0

7.2

6.5

6.5

5.8

5.8

5.1

5TT

146

92

31

22

17

15

50

59

38

20

17

711.6

23.0

1.05

1.21

Aug.

14

12

9.8 

8.9

14

20

22

17

 14

11

8.0

7.2

6.5

8.0

8.0

8.0

7.2

6.5

5.8

575

13

17

13

9.8

7.2

7.2

6.5

6.5

6.5

6.5

5.8

312.7

10.1

0.461

0.53

Sept.

5.8

178

5.8 

6.5

8.0

9.3

20

22

T5

8.0

6.5

5.8

5.8

5.8

5.8

5.8

6.5

7.2

*7.2

6.5

5.8

5.8

5.8

5.8

6.5

6.5

6.5

8.0

8.9

8.9

237.6

7.92

0.362

0.40

Calendar year 1955: Max 419 Min 0.8 Mean 17.5 Cfsm 0.799 In. 10.87

Water year 1955-56: Max 176 Mln 3.9 Mean 19.2 Cfsrt 0.877 In. 11.91

Peak discharge (base, 250 cfsl.--Mar. 14 (10 p.m.) 362 cfs (2.15 ft); July 21 (6 p.m.) 280 ofe 

(2.03 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Oct. 25 to Nov. 6, Nov. 12 to Dec. 11, Dec. 31 to Jan. 23j discharge 

estimated on basis of recorded range In stage and records for Salem River at Woodstown.
276 DELAWARE RIVER BASIN

Reservoirs in Delaware River basin

Fepacton Reservoir. Lat 42°04'30", long 74°57'55", near release chamber at Downsville Dam 

on East Branch Delaware River, 1.6 miles east of Downsville, Delaware County, N. Y. 

Drainage area, 371 sq mi. Records available, September 1954 to September 1956. Inclined staff gage read daily. Datum of gage is at mean sea level (levels by Board of 

Water Supply, City of Hew York). Maximum contents during year, 152,678,000,000 gal 

Apr. 17 (elevation, 1,281.55 ft); minimum, 76,206,000,000 gal Oct. 1 (elevation, 

1,232.22 ft, reservoir filling). Maximum contents during period 1954-56, that of 

Apr. 17, 1956; minimum (after first filling), 81,386,000,000 gal Sept. 23, 1956 (elevation, 1,236.35 ft).

Reservoir is formed by an earth-fill dam, rock-faced; storage began Sept. 15, 1954. 

Capacity, 147,901,000,000 gal (revised) between elevations 1,126.50 ft (elevation of 

release outlet) and 1,280.00 ft (crest of spillway), including 4,200,000,000 gal below 

elevation 1,143.00 ft (elevation of intake chamber to diversion tunnel). Dead storage, 

1,898,000,000 gal. Reservoir impounds water for diversion through East Delaware tunnel 

to Rondout Reservoir on Rondout Creek, in Hudson River basin, for water supply of city 

of Hew York. Figures given herein represent total contents. Ho diversion prior to 

Jan. 6, 1955. Records furnished by Board of Water Supply, City of Hew York.

Lake Wallenpaupack. Lat 41°27'35", long 75°11'10", at dam on Wallenpaupack Creek at 

Wilsonville, Wayne County, Pa., l£ miles south of Hawley and 1.5 miles upstream from 

mouth. Drainage area, 228 sq ml. Records available, October 1950 to September 1956 in 

reports of Geological Survey. January 1926 to September 1950 in files of Harrisburg 

district office, Geological Survey. Staff gage. Datum of gage is at mean sea level 

(levels by Pennsylvania Power and Light Co.). Maximum contents during year, 151,130 

acre-ft Oct. 31 (elevation, 1,188.85 ft); minimum, 45,900 acre-ft Feb. 24 (elevation, 

1,169.40 ft). Maximum contents during period 1926-56, 178,200 acre-ft Aug. 19-21, 1955

elevation, 1,193.45 ft minimum (after first filling), 19,240 acre-ft Dec. 1, 2, 1936

(elevation, 1,164.05 ft

Reservoir formed by concrete gravity-type and earth-fill dam, with concrete spillway 

at elevation 1,176.00 ft, in two sections. Spillway equipped with roller gate, 14 ft 

high, on each section. Storage began Hov. 3, 1925; water in reservoir first reached 

minimum pool elevation in January 1926. Total capacity at elevation 1,190.0 ft (top of 

gates) is 209,300 acre-ft of which 157,800 acre-ft is controlled storage above elevation 1,160.0 ft (minimum pool). Reservoir is used for generation of hydroelectric 

power. Figures given herein represent usable contents. Records furnished by Pennsylvania Power and Light Co.

Swinging Bridge Reservoir. Lat 41°34'25", long 74°47'00", at dam on Mongaup River

li miles northwest of Fowlersville, Sullivan County, H. Y. Drainage area, 118 sq mi. 

Records available, October 1950 to September 1956 in reports of Geological Survey. 

January 1930 to September 1950 in files of Rockland Light and Power Co. Gage, waterstage recorder. Datum of gage is at mean sea level (levels by Rockland Light and Power 

Co.). Maximum contents during year, 1,457,000,000 cu ft Oct. 15 (elevation, 1,071.7 

ft; minimum, 873,000,000 cu ft Apr. 2 (elevation, 1,055.9 ft). Maximum contents during 

period 1950-56, that of Oct. 15, 1955; minimum, 704,000,000 cu ft Aug. 4, 1951 (elevation, 1,050.6 ft).

Reservoir is formed by an earth-fill dam. Storage began Jan. 19, 1930. Usable 

capacity, 1,387,300,000 cu ft between elevations 1,010.0 ft (minimum operating pool) 

and 1,070.0 ft (top of permanent flashboards). Dead storage, about 212,700,000 cu ft 

below elevation 1,010.0 ft. Reservoir is used for storage of water for power. Figures 

given herein represent contents above 1,010.0 ft. Records furnished by Rockland Light 

and Power Co.

Toronto Reservoir.--Lat 41°37'15", long 74°49'55", at dam on Black Lake Creek 2| miles 

southeast of village of Black Lake, Sullivan County, H. Y. Drainage area, 23.2 sq mi. 

Records available, October 1950 to September 1956 in reports of Geological Survey. 

January 1926 to September 1950 in files of Rockland Light and Power Co. Staff gage 

read daily. Datum of gage is at mean sea level (levels by Rockland Light and Power 

Co.). Maximum contents during year, 1,131,000,000 cu ft June 5 (elevation, 1,220.9 

ft); minimum, 499,000,000 cu ft Feb. 7 (elevation, 1,199.3 ft). Maximum contents 

during period 1950-56, 1,160,000,000 cu ft Apr. 17-20, June 2, 1952 (elevation, 1,221.2 

ft); minimum, 26,000,000 cu ft Aug. 13-26, 1951 (elevation, 1,170.3 ft).

Reservoir is formed by an earth-fill dam completed July 24, 1926. Storage began 

Jan. 13, 1926. Usable capacity, 1,098,200,000 cu ft between elevations 1,165.0 ft 

(minimum operating pool) and 1,220.0 ft (top of permanent flashboards). Dead storage, 

about 26,800,000 cu ft below elevation 1,165.0 ft. Reservoir is used for storage of 

water for power. Figures given herein represent contents above 1,165.0 ft. Records 

furnished by Rockland Light and Power Co.

Cliff Lake Reservoir.--Lat 41°35'00", long 74°47'40", at dam on Black Lake Creek Z\ miles 

northwest of Fowlersville, Sullivan County, H. Y. Drainage area, 6.46 sq mi (excluding 

area above Toronto Reservoir)'. Records available, October 1950 to September 1956 in 

reports of Geological Survey. January 1939 to September 1950 in files of Rockland 

Light and Power Co. Staff gage read once daily. Datum of gage is at mean sea level 

(levels by Rockland Light and Power Co.). Maximum contents during year, 141,000,000 

cu ft Oct. 16 (elevation, 1,072.6 ft); minimum, 38,000,000 cu ft Apr. 3 (elevation, 

1,056.5 ft). Maximum contents during period 1950-56, 148,000,000 cu ft Apr. 28, 29, 

1953 (elevation, 1,072.6 ft); minimum, 20,000,000 cu ft Feb. 18-20, 1955; minimum elevation, 1,051.3 ft Aug. 2, 1951.

Reservoir is formed by a concrete gravity-type dam. Storage began Jan. 6, 1939. 

Usable capacity, 136,060,000 cu ft between elevations 1,043.3 ft (minimum operating 

pool) and 1,072.0 ft (top of permanent flashboards). Dead storage, about 6,540,000 

cu ft below elevation 1,043.3 ft. Reservoir is used for storage of water for power. 

Water is received from Toronto and Lebanon Lake Reservoirs and is discharged through 

a tunnel into Swinging Bridge Reservoir. Figures given herein represent contents above 

1,043.3 ft. Records furnished by Rockland Light and Power Co.
DELAWARE RIVER BASIN 277

Reservoirs in Delaware River basin Continued

Neversink Reservoir.--Lat 41°49'20", long 74°38'30", at gatehouse at Neversink Dam on 

Neverslnk River, half a mile downstream from Neversink, Sullivan County, N. Y. Drainage area, 91.8 sq mi. Records available, June 1953 to September 1956. Electriccontact gage read daily. Datum of gage is at mean sea level (levels by Board of Water 

Supply, City of New York). Maximum contents during year 37,848,000,000 gal Apr. 30 

(elevation, 1,441.41 ft); minimum, 15,170,000,000 gal Sept. 29 (elevation, 1,383.97 

ft). Maximum contents during period 1953-56, that of Apr. 30, 1956; minimum (after 

first filling), that of Sept. 29, 1956.

Reservoir is formed by an earth-fill dam, rock-faced; storage began June 2, 1953. 

Capacity, 35,466,000,000 gal (revised) between elevations 1,314.00 ft (elevation of 

intake chamber) and 1,440.00 ft (crest of spillway); dead storage, 1,680,000,000 gal. 

Reservoir impounds water for diversion through Neversink-Grahamsville tunnel to Rondout 

Reservoir on Rondout Creek, in Hudson River basin, for water supply of city of New York. 

Figures given herein represent total contents. No diversion prior to Dec. 3, 1953. 

Records furnished by Board of Water Supply, City of New York.

Wild Creek Reservoir.--Lat 40°53'50", long 75°33 I 50", at dam on Wild Creek 1.6 miles upstream from mouth and 2.4 miles south of Hatchery, Carbon County, Pa. Drainage area, 

22.2 sq mi. Records available, October 1950 to September 1956 in reports of the Geological Survey; January 1941 to September 1950 in files of the Harrisburg district 

office, Geological Survey. Staff gage. Datum of gage is at mean sea level (levels by 

city of Bethlehem). Maximum contents during year, 12,240 acre-ft Oct. 15 (elevation, 

820.80 ft); minimum, 10,380 acre-ft Feb. 10 (elevation, 813.85 ft). Maximum contents

during period 1941-56, 12,880 acre-ft May 23, 1942 

(after first filling), 5,900 acre-ft Feb. 23, 1945

elevation, 822.93 ft); minimum 

elevation, 793.45 ft)

Reservoir formed by an earth-fill dam, with concrete ungated spillway at elevation 

820.00 ft. Storage began Jan. 27, 1941; water in reservoir first reached minimum pool 

elevation in February 1941. Total capacity at elevation 820.00 ft is 12,500 acre-ft, 

of which 12,000 acre-ft is controlled storage. Reservoir is used for municipal water 

supply. Figures given herein represent usable contents. There are no gates on spillway and regulation is done by valves on pipe through dam. Records furnished by city of 

Bethlehem.

Lake Hopatcong.--Lat 40°55'00", long 74°39'50", in gatehouse of Lake Hopatcong Dam on 

Musconetcong River and at Landing, Morris County, N. J. Drainage area, 25.6 sq mi. 

Records available, October 1950 to September 1956 in reports of Geological Survey. 

February 1887 to September 1945 (gage heights only) in reports of New Jersey Department 

of Conservation and Economic Development, Division of Water Policy and Supply. October 

1945 to September 1950 in files of Trenton district office, Geological Survey. Gage, 

water-stage recorder. Prior to June 24, 1928, daily readings obtained by measuring 

from high-water mark to water surface converted to gage height, present datum. Datum 

of gage is 914.57 ft above mean sea level (New Jersey Geological Survey datum). Maximum contents during year, 7,745,000,000 gal July 14 (gage height, 9.34 ft); minimum 

observed, 1,729,000,000 gal Jan. 27 (gage height, 1.02 ft). Maximum contents during 

period 1887-1956, 8,485,000,000 gal (revised) May 3, 1945 (gage height, 10.21 ft); minimum, 1,568,000,000 gal Dec. 15,1945 (gage height, 0.73 ft).

Revisions. The figures of maximum and minimum contents for the water years 1945, 

1954-55 have been revised as shown below, superseding figures published in WSP 1332 and 

1382.

WSP

(a) 

1332 

1382

Water 

year

1945 

1954 

1955

Maximum

Date

May 3, 1945 

May 10,11,1954 

June 22, 1955

Contents 

(million 

gallons )

8,485 

7,829 

7,703

Gage height 

(feet)

10.21 

9.44 

9.29

Minimum

Date

Oct. 21, 1953 

Sept. 30, 1955

Contents 

(million 

gallons)

5,365 

4,718

Gage height 

(feet)

6.40 

5.55

a Published in WSP 1332, 1382.

Lake is formed by concrete spillway and earth fill; dam completed about 1828. Crest 

of spillway was lowered 0.11 ft in 1925. Usable capacity, 7,459,000,000 gal (revised) 

between gage heights -2.6 ft, corrected (sills of gates) and 9.00 ft, corrected (crest 

of spillway). Flow regulated by 4 gates (3 by 5 ft). One 24-inch pipe with gate valve 

to recreation fountain 250 ft downstream from dam. Dead storage not known; records 

given herein represent usable capacity. Lake used for recreation.

Still Creek Reservoir.--Lat 40°51'25", long 75°59'30", at dam on Still Creek, 1 mile upstream from mouth and 2.3 miles north of Hometown, Schuylkill County, Pa. Drainage 

area, 8.5 sq mi. Records available, October 1950 to September 1956 in reports of Geological Survey; January 1933 to September 1950 in files of Harrisburg district office, 

Geological Survey. Staff gage. Datum of gage is at mean-sea level (levels by Panther 

Valley Water Co.). Maximum contents during year, 8,570 acre-ft Oct. 15 (elevation, 

1,182.92 ft); minimum, 7,700 acre-ft Feb. 6 (elevation, 1,180.00 ft). Maximum contents 

during period 1933-56, that of Oct. 15, 1955, but may have been greater during 1950 and 

1951 water years; minimum, 390 acre-ft Feb. 26, 1933 (elevation, 1,132.00 ft).

Reservoir formed by earth-fill dam, with ungated concrete spillway at elevation 

1,182.00 ft. Storage began in February 1933. Capacity at elevation, 1,182.00 ft is 

8,290 acre-ft. Reservoir is used for municipal water supply. Figures given herein 

represent total contents. There are no gates on spillway and regulation is done by 

valves on pipe through dam. Records furnished by Panther Valley Water Co.

Revisions.--Revised figures of month-end contents and change in contents for Lake Hopatcong for the water years 1951-55, are given on page 278 . They supersede figures published in WSP 1332 and 1382.

505690 O - 59 - 19
278 DELAWARE RIVER BASIN

Reservoirs in Delaware River basin Continue

Revised figures of month-end contents and change in contents, of Lake Hopatcong 

October 1950 to September 1955

Date

Jan. 31, 1951.... ...........

Oct. 31..... ................

Nov. 30.....................

Jan. 31, 1952.......... .....

Mar. 31................. ....

Water year 1951-52

Nov. 30.....................

Calendar year 1952 ........

July 31 .....................

Sept. 30... ..................

Dec . 31 .....................

July 31 .....................

Sept. 30.....................

Oct. 31... ..................

Dec . 31 .....................

Calendar year 1954 ........

Sept. 30................ .....

Water year 1954-55 ........

Gage height 

(feet)

9 33

-

-

6.91

7.78

8.41

8.42

7.77

7.70

-

5.55

-

Contents 

(million gallons)

6,587

7 393

-

-

5,764

6,458

7,694

6,971

6,979

6,450

6,393

-

7,484

7,652

4,718

-

Change in contents 

(equivalent in cfs)

_

+31 9

+2 9

+3.6

-.1

-33.7

+46.0

+7.3

+11.7

-18.6

-8.5

-26.4

-22.3

-0.3

+ 9.1

-8.8

+25.7

-151

-9.6

Qage height at 12 p.
DELAWARE RIVER BASIN 279

Reservoirs in Delaware River basin Continued

Month-end elevation or gage height and contents, water year October 1955 to September 1956

Date

Dec. 31......

Calendar 

year 1955

Sept. 30. .....

Water year 

1955-56.

Date

Nov. 30......

Calendar 

year 1955

Water year 

1955-56.

Date

Calendar 

year 1955

Jan. 31...... 

Feb. 29...... 

Mar. 31...... 

Apr. 30...... 

May 31 ...... 

June 30. ..... 

July 31...... 

Aug. 31...... 

Sept. 30. .....

Water year 

1955-56.

Elevation 

(feet)tt

Contents 

(million 

gallons)

Change

contents 

(equivalent in 

cfs)

Pepacton Reservoir

1,232.16 

1,254.07 

1,263.37 

1,264.03

-

1,260.95 

1,257.92 

1,265.47 

1,281.21 

1,275.33 

1,269.47 

1,259.34 

1,244.90 

1,236.46

-

Elevation 

(feet)t

76,132 

106,222 

*120,893 

121,975

-

116,973 

112,163 

124,354 

152,044 

141,328 

131,097 

114,405 

92,857 

81,527

-

Contents 

(millions 

of 

cubic 

feet)

H, 502 

+757 

+54.0

+303

-250 

-257 

+608 

+1,428 

-535 

-528 

-833 

-1,075 

-584

+22.8

Change 

in 

contents 

(equivalent in 

cfs)

Toronto Reservoir

1,205.0 

1,215.0 

1,219.5 

1,212.1

-

1,202.2 

1,202.0 

1,209.6 

1,219.2 

1,220.2 

1,218.0 

1,214.0 

1,208.9 

1,204.9

-

Elevation 

(feet)t

644 

929 

1,081 

841

-

572 

566 

770 

1,070 

1,105 

1,029 

898 

750 

642

-

Contents 

(acrefeet)

+106 

+58.6 

-89.6

+11.8

-100 

-2.38 

+76.2 

+116 

+13.1 

-29.3 

-48.9 

-55.3 

-41.7

-.063

Change 

in 

contents 

(equivalent in 

cfs)

Wild Creek Reservoir

818.76 

820.55 

820.08 

819.60

-

815.12 

815.87 

820.18 

820.38 

820.08 

819.85 

820.03 

818.34 

816.70

-

11,740 

12,160 

12,020 

11,920

-

10,740 

10,940 

12,050 

12,110 

12,020 

11,970 

12,010 

11,620 

11,170

-

+6.8 

-2.4 

-1.6

+4.9

-19.2 

+3.5 

+18.1 

+ 1.0 

-1.5 

-.8 

+ .7 

-6.4 

-7.6

-.8

Elevation 

(feet)t

Contents 

(acrefeet)

Change 

in 

contents 

(equivalent in 

cfs)

Lake Wallenpaupack

1,183.80 

1,188.85 

1,187.50 

1,179.85

-

1,172.25 

1,169.90 

1,172.60 

1,176.45 

1,174.60 

1,177.65 

1,179.55 

1,180.05 

1,181.15

-

Elevation 

(feet)t

122,480 

151,130 

143,350 

100/790

-

60,500 

48,400 

62,320 

82,480 

72,720 

88,910 

99,170 

101,870 

107,820

-

Contents 

(millions 

of 

cubic 

feet)

+466 

-131 

-692

-12.0

-655

-210 

+226 

+ 339 

-159 

+272 

+167 

+43.9 

+100

-20.2

Change 

in 

contents 

(equivalent in 

cfs)

Cliff Lake Reservoir

1,067.8 

1,071.4 

1,070.8 

1,070.8

-

1,069.0 

1,057.2 

1,058.0 

1,070.9 

1,068.0 

1,065.0 

1,066.4 

1,065.2 

1,067.2

-

Gage 

height 

(feet)it

103 

131 

126 

126

-

112 

41 

44 

127 

104 

84 

93 

85 

99

-

Contents 

(million 

gallons)

+10.5 

-1.93 

0

+ .890

-5.23 

-28.3 

+1.13 

+32.0 

-8.58 

-7.70 

+3.35 

-3.00 

+5.40

-.126

Change 

in 

contents 

(equivalent in 

cfs)

Lake Hopatcong

5.55 

3.52 

1.45 

1.32

-

1.19 

3.12 

4.96 

7.88 

8.72 

8.96 

9.12 

9.16 

8.70

-

4,718 

3,275 

1,974 

1,899

-

1,824 

3,008 

4,284 

6,539 

7,227 

7,426 

7,560 

7,593 

7,210

-

-72.0 

-67.1 

-3.7

-19.0

-3.7 

+63.2 

+63.7 

+116 

+34.3 

+ 10.3 

+6.7 

+1.6 

-19.8

+10.5

Elevation 

(feet)t

Contents 

(millions 

of 

cubic 

feet)

Change 

in 

contents 

( equivalent in 

cfs).

Swinging Bridge Reservoir

1,064.2 

1,069.0 

1,066.7 

1,063.4

-

1,060.6 

1,057.4 

1,056.1 

1,070.7 

1,066.0 

1,064.0 

1,065.0 

1,064.6 

1,066.8

-

Elevation 

(feet)tt

1,161 

1,347 

1,256 

1,132

-

1,031 

922 

880 

1,416 

1,229 

1,154 

1,191 

1,176 

1,260

-

Contents 

(million 

gallons)

+69.5 

-35.1 

-46.3

-4.57

-37.7 

-43.5 

-15.7 

+207 

-69.8 

-28.9 

+13.8 

-5.61 

+32.4

+3.13

Change 

in 

contents 

(equivalent in 

cfs)

Neversink Reservoir

1,426.09 

1,440.63 

1,439.59 

1,432.86

-

1,424.96 

1,417.52 

1,414.72 

1,441.02 

1,439.72 

1,433.45 

1,422.32 

1,397.67 

1,384.50

-

Elevation 

(feet)t

30,654 

37,458 

*36,944 

33,718

-

30,158 

27,014 

25,878 

37,653 

37,008 

33,994 

29,022 

19,534 

15,328

-

Contents 

(acrefeet)

+340 

-26.5 

-161

+28.1

-178 

-168 

-56.7 

+607 

-32.2 

-155 

-248 

-474 

-217

-64.8

Change 

in 

contents 

(equivalent in 

cfs)

Still Creek Reservoir

1,182.17 

1,182.67 

1,182.33 

1,181.92

-

,181.04 

,181.54 

,182.33 

,182.33 

,182.33 

,181.75 

,182.33 

1,181.38 

1,181.33

-

8,340 

8,490 

8,390 

8,260

-

8,010 

8,150 

8,390 

8,390 

8,390 

8,210 

8,390 

8,100 

8,090

-

+2.4 

-1.7 

-2.1

+ .2

-4.1 

+2.4 

+ 3.9 

0 

0 

-3.0 

+2.9 

-4.7 

-.2

-.3

" Kevisea capacity table used subsequent t 

t Elevation at 12 p.m.

tt Elevation at 12 p.m. by interpolation. 

tt Gage height at 12 p.m.

' Nov. 1, 1955.
280 DELAWARE RIVER BASIN

Diversions from Delaware River basin

Water diverted from Pepacton Reservoir, N. Y. (see p. 276) on East Branch Delaware 

River to Rondout Reservoir on Rondout Creek, in Hudson River basin, for municipal supply 

of city of New York. No diversion prior to Jan. 6, 1955. Records furnished by Board of 

Water Supply, City of New York.

Water diverted from Neversink Reservoir, N. Y. (see p. 277) on Neversink River to 

Rondout Reservoir on Rondout Creek, in Hudson River basin, for municipal supply of city 

of New York. No diversion prior to Dec. 3, 1953. Records furnished by Board of Water 

Supply, City of New York.

Water diverted by Delaware & Raritan Canal from Delaware River at Raven Rock, N. J., 

for municipal and industrial use. Water is discharged into the Raritan River at New 

Brunswick. Records of discharge are collected at Delaware & Raritan Canal at Kingston 

(see p. 247).

Diversion, In cubic feet per second, water year October 1955 to September 1956

Month

Calendar year 1955. ........

September. ...................

Water year 1955-56. ........

Pepacton Reservoir

362

406

324

Neversink Reservoir

220

168

224

181

Z59

160

204

Delaware & Raritan Canal 

at Kingston

43.7

49.9

50.1

58.1

51.2

83.1

63.6
LEIPSIC RIVER BASIN 281

Leipsic River near Cheswold, Del.

Location (revised).-Lat 39° 13'58", long 75°37>57", on left bank 75 ft downstream from

 highway bridge. 0.4 mile downstream from confluence of Taylor and Pinks Branches, 

1.9 miles east of Kenton, and 2.6 miles northwest of Cheswold, Kent County.

Drainage area. 9.35 sq mi (revised).

Records available.--October 1931 to October 1933 and April 1943 to September 1956 in

reports of the Geological Survey. July 1931 to October 1933 in reports of Pennsylvania 

Department of Forests and Waters.

Gage.-Water-stage recorder. Altitude of gage is 18 ft (from topographic map) July 23, 

1931, to Oct. 31, 1933, staff gage at bridge 75 ft upstream at different datum Apr. 9, 

1943! to Aug. 9, 1951, staff gage and crest-stage indicator at bridge 75 ft upstream 

from'present site at present datum.

Average discharge.--15 years (1931-33, 1943-56), 10.6 cfs.

Extremes.--Maximum discharge during year, 131 cfs Aug. 14 (gage height, 3.12 ft); minimum,

 1.5 cfs June 30, July 1 (gage height, 1.11 ft).

1931-33, 1943-56: Maximum discharge, 730 cfs July 9, 1952 (gage height, 5.44 ft), 

but may have been greater Aug. 23, 1933 (gage height, 6.1 ft, present site, datum then 

in use, from graph based on gage readings); minimum, 1.0 cfs July 13, 23, 24, 1955.

Remarks.--Records good.

Revisions. WSP 1382: 1932-33, 1943-44(M), 1948-49(M), 1951(M), 1952.

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

1.1 

1.3

1.5

1.3

5.6

12

1.7 

2.0 

2.5 74

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

I

2

3

4

5 

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Cfarn

In.

Oct.

5.9

5.4

4.9

4.9 

4.9

5.4

4.9

7.7

6.7

5.4

4.9

4.7

4.7

6.5 

9.0

6.1

5.9

5.4

5.1

4.9

4.9

4.9

4.9

5.1

5.1

5.1

5.1

5.4

11

*7.0

176.5

5.69

0.6O9

0.70

Nov.

5.

5.

5.

5.

5.

5.

5.6

5.6

6.8

16

8.0

6.7

6.4 

6.4

6.4

6.1

5.9

8.3

9,0

7.0

6.4

6.1

5.9

6.1

5.9

6.1

5.9

5.9

196.1

6.54

0.699

0.78

Dec.

5.9

6.1

7.0

6.7

6.1

5.9

6.1

7.0

7.2

5.9

5.9

5.6

5.6 

6.1

5.4

5.4

5.6

5.9

5.4

4.9

5.6

6.1

6.7

5.9

5.1

4.7

4.7

5.4

4.9

180.1

5.81

O.621

0.72

Jan.

4.7

4.9

5.4

5.9

*5.4

4.9

4.4

4.7

9.6

10

9.4

7.2

5.9

5.4

5.4

6.4

5.9

5.4

5.9

5.4

5.1

4.7

4.4

4.4

4.2

4.0

574

9.9

7.5

182.5

5.89

0.630

0.73

Feb.

 37? 5.4

9.4

10

12

21

9.3

8.0

*7.5

11

12

8.6

7.8 

7.8

7.8

8.6

15

9.9

8.6

7.8

7.0

7 .2

9.3

8.6

7.8

7.8

7.0

269.8

9.30

0.995

1.07

Mar.

T78~ 7.0

7.8

7.5

7.0

7.0

13

12

8.3

8.0

7.8

10

35 

38

18

29

15

13

14

16

14

12

10

9.9

9.3

8.9

9.9

1O

8.9

398.3

12.8

1.37

1.58

Apr.

8.9

*8.9

11

10

9.8

22

34

16

11

9.9

9.3

8.6

8.6 

8.9

12

9.3

8.3

8.0

8.0

7.5

7.5

8.3

8.3

9.3

8.3

7.8

7.2

7.0

310.1

10.3

1.10

1.23

May

6.4

7.6

8.9

7.8

6.7

~8.0 13

6.7

b.4

5.9

5.6

6.1

5.1 

4.7

4.7

4.4

4.7

4.4

4.7

4.2

5.9

4.7

4.2

4.0

9.4

6.7

4.4

4.4

4.2

185.1

5.97

0.639

0.74

June

4.7

12

8.9

5.4

4.2

4.0

3.8

4.0

4.7

*14

4.9

4.2

3.8 

3.5

3.5

3.5

3.5

3.3

3.3

4.9

3.1

8.1

3.5

2.9

2.7

2.5

2.6

1 9 ' 

140.8

4.69

O.5O2

0.56

July

2.5

2.2

F73

2.7

4.4

4.4

4.0

5.4

5.4

3.8

3.1

2.9

2.7 

2.5

2.5

2.5

2.7

2.5

*2.5

28 

4.9

4.0

4.8

4.0

3.3

6.8

11

12

4.0

3.3

154.5

4.98

0.533

0.61

Aug.

3.1

3.1

2.9

5T~ 2.7 

15

5.9

4.4

3.5

3.3

2.9

2.9

10

*&.*

4.O

3.5

3.3

2.9

5.3

21 

6.1

4.7

4.0

3.8

3.5

3.5

3.5

3.3

3.3

3.3

247.1

7.97

0.852

0.98

Sept.

3.3

3.3

3.3

3.1 

3.3

4.3

5.6

4.0

3.1

3.1

3.1

2.9

2.9

2.5 

2.7

3.1

3.8

4.7

3.3

3.1

2.9 

2.9

2.9

3.3

3.3

3.1

*7 , 6

7.1

4.7

4,2

110.5

3.68

0.394

0.44

Calendar year 1955: Max 200 Hin 1.3 Mean 7.26 Cfsm 0.776 In. 10.55

Water year 1955-56: Max 52 Min 1.9 Mean 6.97 Cfsm 0.745 In. 10.14

Peak discharge (base. 120 cfs).--Aug. 14 (3 a.m.) 131 cfs (3.12 ft). 

* Discharge measurement made on this day.
282 INDIAN RIVER BASIN

Stockley Branch at Stockley, Del.

Location. Lat 38°38'19", long 75°20'31", on left bank at highway bridge in Stockley, 

Sussex County, 1.6 miles upstream from mouth and 4.4 miles southeast of Georgetown.

Drainage area . 5.24 sq mi (revised).

Records available. April 1943 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 24.54 ft above mean 

sea level, datum of 1929. Prior to Aug. 16, 1950, staff gage and crest-stage indicator 

at same site and datum.

Average discharge. 13 years, 7.04 cfs.

Extremes . Maximum discharge during year, 27 cfs Mar. 17 (gage height, 2.58 ft); minimum, 

2.1 cfs Sept. 11.

1943-56: Maximum discharge, 132 cfs June 4, 1948 (gage height, 5.0 ft, from graph 

based on gage readings), from rating curve extended above 50 cfs by logarithmic plotting; 

minimum observed, 0.13 cfs Sept. 1-11, 1944.

Remarks. Records good.

Revisions (water years). WSP 1141: 1948(P).

Rating table, water year 1955-56 (gage height. In feet, and discharge, 

In cubic feet per second)

1.8

1.9

2.0 

3.0

1.3

3.1

5.7

44

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

I 

2

3

4

5

6

7

8 

9

10

11

12

13

14 

15

16

17

IS

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Cfsm

In.

Oct.

5.7 

4.2

4.2

4.0

3.8

3.8

3.5

3.5 

3.5

3.5

3.5 

3.3

3.3

tf

7.7

6.7

6.0

5.7

5.7

5.4

5.1

5.1

4.8

5.1

*4.8

4.8

4.5 

4.5

5.7

5.4

160.8

5.19

0.990

1.14

Nov.

5.1 

4.8

4.8

4.5

4.5

4.5

H4.2

5.4

H.7

6.0

6.0 

5.7

5.7

5.4

5.1

7.1

7.7

6.7

6.0

6.0

6.0

5.7

5.7

5.4

5.4 

5.4

5.1

170.0

5.67

1.08

1.21

Dec.

4.8 

4.8

4.8

4.8

4.5

4.2

4.2

4.2 

5.7

6.0

5.4

5.1

4.8

4.5 

4.8

4.5

4.2

4.2

4.2

4.2

4.0

4.0

4.0

4.0

4.2

4.0

3.8

3.8 

3.5

3.8

3.8

136.8

4.41

0.842

0.97

Jan.

3.8 

3*5

3.5

*3.8

3.8

3.8

3.8

3.5

4.0

6.7

7.7 

8.0

7.7

7.0 

6.7

6.7

8.0

7.4

7.0

8*7.

8.0

7.7

7.7

7.4

7.0

7.0

6.4

6.0 

6.4

7.0

6.4

192.1

6.20

1.18

1.36

Feb.

6.0

8^7

10

12

11

15

12

9.7

13

T2~

10 

10

9.4

9.4

9.7

9.0

9.4

9.0

8.7

8.3

8.0

9.7

9.0

8.7

8.3

7.7

287.4

9.91

1.89

2.04

Mar.

777

7^7

8.3

7.7

7.7

17

17 

16

12

11 

10

11

20 

20

20

24

T9

22

*17

14

13

12

11

11

11

10

9.7 

9.7

10

9.4

403.3

13.0

2.48

2.86

Apr.

8.7 

8.7

8.7

8.7

8.0

8.3

10

tt

9.4

9.0

8.3

8.0

.7 

.7

.7

.4

.0

7.0

6.7

6.4

6.4

6.0

6.4

6.4

6.7

6.4

6.0 

6.0

 

5 ~ 7

233.4

7.78

1.48

1.66

May

5.4 

5.4

6*0

6.0

5.7

5.4

6.0

5.4

5.1

5.1

5.4

5.1

5.1

*4.5 

4.2

4.2

4.2

4.2

4.0

4.2

4.0

4.0

4.2

4.0

5.8

3.8

4.6

6.0 

4.5

4.2

4.2

147.9

4.77

0.910

1.05

June

4.9

7.7

8.7

7.0

6.4

5.7

5.4

5.1 

5.1

4.8

4.8 

4.2

4.0

3.8 

3.8

3.5

3.5

4.0

3.5

3.5

3.8

3.8

3.5

3.8

3.5

3.3

3.8

3.3 

2.9

2.9

134.0

4.47

0.853

0.95

July

2^9 

2.9

2.9

2.9

3.1

3.8

3.3

5.6

7.7

5.4

4.5 

4.0

3.8

3.5 

3.5

*3.9

7.8

4.5

4.0

3.8

8.0

6.4

5.4

4.8

4.5

4.2

11

6^4

5.7

5.1

153.6

4.95

0.945

1.09

Aug.

4.8 

4.5

4.0

4.0

4.8

4.5

4.2

4.0 

3.5

3.5

3.3 

3.1

3.1

3.1

3.1

2.9

2.9

2.9

2.9

2.9

5.6

3.8

3.3

3.1

3.1

2.9

2.9

3.1 

2.9

2.9

2.7

108.3

3.49

0.666

0.77

Sept.

2.7 

3.3

3.3

2.9

2.5

2.7

3.5

2.7 

2.5

2.5

2.3 

275

2.7

2.9 

2.9

3.1

2.9

2.9

2.9

3.1

2,9

3.1

3.1

*3.1

3.1

3.1

3.3

8^0 

4.2

3.8

94.5

3.15

0.601

0.67

Calendar year 1955: Max 43 Mln 2.7 Mean 5.77 Cfsm 1.10 In. 14.97

Water year 1955-56: Max 24 Mln 2.3 Mean 6.O7 Cfsm 1.16 In. 15.77

Peak discharge (base. 45 cfs). No peak above base. 

* Discharge measurement made on this day.
POCOMOKE RIVER BASIN 283

Pocomoke River near Willards, Md.

Location. Lat 38°23'20", long 75°19'30", on left bank 30 ft downstream from bridge on 

U.. S. Highway 50, at Wicomico-Worcester County line, 0.6 mile upstream from Burnt Mill 

Branch, 1.3 miles east of Willards, Wicomico County, and 1.3 miles west of Whaleysville.

Drainage area.--60.5 sq mi.

Records available. December 1949 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 6 years (1950-56), 59.4 cfs.

Extremes.--Maximum discharge during year. 670 cfs Oct. 15 (gage height, 10.71 ft); minimum, 

8.5 cfs July 20 (gage height, 2.20 ft).

1949-56: Maximum discharge, 830 cfs June 1, 1952; maximum gage height, 11.33 ft 

Apr. 28, 1954; minimum discharge, 3.8 cfs Sept. 5-9, 1950; minimum gage height, 2.10 ft 

Aug. 19, 1954.

Remarks.--Records good except those for periods of no gage-height record, which are fair.

Rating tables, water year 1955-56 (gage height. In feet and discharge,

In cubic feet per second)

(Shifting-control method used Oct. 14-18, Nov. 11, Jan. 11-13, 

20, 21, Feb. 6, 7)

3.1 

3.5 

4.0

Oct. 1-15

1 5.0

6 7.0

1 10.0

136

311

680

Oct. 16 to Sept. 30

2.2 8.5 3.0 30

2.5 16 3.6 50

Note. Same as preceding 

table above 3.6 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

123

177

130

94

72

56

50

44

46

44

39

35

33

226

*652

489

282

179

134

110

94

79

69

62

69

 66

58

52

49

66

101

3,782

122

2.02

2.32

Nov.

84

71

63

62

58

52

48

46

44

45

154

149

124

105

91

80

70

62

61

99

91

81

72

66

59

57

55

54

*52

48

2,203

73.4

1.21

1.35

Dec.

44

43

44

45

45

43

41

40

52

129

107

93

79

69

66

63

54

50

49

47

43

40

40

40

41

41

40

36

35

ST

35

1,629

52.5

0.868

1.00

Jan.

33

32

32

*32

32

32

31

30

30

72

178

220

19T

150

128

110

128

114

100

159

162

132

123

115

105

93

80

68

72

76

84

2,944

95.0

1.57

1.81

Feb.

70

110

170

270

»400

245

381

274

*199

150

130

170

160

120

100

92

90

92

88

90

86

80

72

72

84

92

82

74

66

4,109

142

2.35

2.53

Mar.

60

66

68

68

.64

60

55

90

130

100

78

*57

80

140

210

160

230

180

190

140

120

110

92

84

86

82

72

68

72

74

66

3,152

102

1.69

1.94

Apr.

60

56

60

56

47

82

170

185

150

120

*95

89

76

68

64

68

69

61

57

53

50

46

44

44

52

52

51

47

44

41

2,157

71.9

1.19

1.33

May

38

37

40

45

49

45

47

53

46

42

38

36

34

 32

29

28

26

26

25

24

23

22

24

22

21

20

21

23

21

20

20

977

31.5

0.521

0.60

June

20

27

60

54

42

36

32

29

27

26

*25

23

21

20

18

18

20

22

19

18

17

17

16

15

15

13

16

16

14

13

709

23.6

0.390

0.44

July

12

12

11

11

11

12

12

12

14

14

12

11

11

10

9.9

*11

$.5

9.9

9.2

8.7

64

76

65

99

64

37

58

129

258

138

81

1,292.2

41.7

0.689

0.79

Aug.

55

43

38

34

32

32

29

26

24

22

21

19

18

17

16

16

15

14

14

*16

23

23

20

18

16

15

15

16

14

14

14

689

22.2

0.367

0.42

Sept.

13

13

22

16

15

16

26

24

20

18

16

15

14

14

13

13

12

12

11

11

11

10

To

10

11

10

11

14

14

14

429

14.3

0.236

0.26

Calendar year 1955: Max 652 Mln 9.8 Mean 65.8 Cfsm 1.09 In. 14.77

Water year 1955-56: Max 652 Mln 8.7 Mean 65.8 Cfsm 1.09 In. 14.79

Peak discharge (base, 300 cfs). 0

462 cfs (8.77 ft); Feb. 7 (10:30 a.m

ct. 15 (7 a.m.) 670 cfs (10.71 ft); Feb. 5 (time unknown) 

.) 420 cfs (8.14 ft); July 29 (6 a.m.) 304 cfs (6.93 ft).

* Discharge measurement made on this day.

Note. No gage-height record Jan. 25 to Feb. 5, Feb. 10 to Apr. 11; discharge estimated on basis 

of 3 discharge measurements, weather records, recorded range In stage, and records for nearby stations.
284 POCOMOKE RIVER BASIN

Nassawango Creek near Snow Hill, Md.

Location. Lat 38°13'45", long 75°28'20", on right bank 15 ft downstream from bridge on 

State Highway 12, 0.5 mile upstream from Furnace Branch, 0.6 mile downstream from Millville Creek, and 5.5 miles northwest of Snow Hill, Worcester County.

Drainage area. 44.9 sq mi.

Records available. December 1949 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 10 ft (from topographic map).

Average discharge. 6 years (1950-56), 45.4 cfs.

Extremes. Maximum discharge during year, 348 cfs Oct. 16 (gage height, 6.19 ft); minimum, 

2.4 cfs Sept. 15.

1949-56: Maximum discharge, 988 cfs Aug. 16, 1953 (gage height, 7.82 ft); minimum, 

1.4 cfs Aug. 16, 1954.

Remarks.--Records good.

Revisions (water years).--WSP 133S: 1953.

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

1.4

1.5

1.6

1.7 

2.0

1.2

3.0

5.7

9.5

27

4.0 

5.0 

6.O 

7.0

1O1 

169 

306 

588

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

62

117

251

2O9

137

90

67

55

48

40

34

31

33

75

215

325

306

212

146 

103

78

64

56

47

42

*37

35

33

33 

38

40

3,059

98.7

2.20

2.53

Nov.

39

40

43

45 

41

38

34

33

31

33

58

66

85

96

81

68

58

51

48 

50

50

50

52

51

47

43

40

40

39

35

1,485

49.5

1.10

1.23

Dec.

33

32

31

31 

30

28

28

27

36

58

65

74

72

62

57

50

45

40

37 

34

31

28

27

27

28

30

28

26

23 

23

22

1,163

37.5

0.835

0.96

Jan.

21

20

IS

*21 

21

22

21

21

20

40

61

89

136

138

110

86

SO

77

73 

82

94

100

99

84

70

68

57

54

51 

52

54

1,942

62.6

1.39

1.61

Feb.

53

54

65

95 

191

250

270

265

226

172

137

137

*134

125

104

86

77

76

72

70

70

64

60

55

57

58

56

57

55

3,191

110

2.45

2.64

Mar.

50

48

5O

52 

51

49

46

47

54

55

55

*53

52

66

103

14O

199

204

190 

166

143

112

86

72

64

58

55

51

49

50

48

2,518

81.2

1.81

2.O9

Apr,

45

43

40

39 

35

40

96

172

2O7

T78

130

*100

78

67

59

58

54

49

45 

40

36

32

28

30

36

38

38

37

34 

31

1,915

63.8

1.42

1.59

May

27

26

26

27 

27

25

25

3O

28

28

27

24

23

21

19

20

17

17

16 

15

14

13

20

18

15

13

14

21

19 

16

14

645

20.8

0.463

0.53

June

17

37

74

If

62

44

28

23

20

*19

18

15

12

9.5

8.2

13

23

3O 

24

18

15

12

1O

8.2

6.6

6.6

6.6

5.7

5.1

732.5

24.4

0.543

0.61

July

4.2

4.0

3.8

3.8 

4.8

4.8

8.2

12

15

23

22

19

14

9.5

6.6

5.4

*4.5

9.5

8.6 

6.3

54

69

71

62

45

3O

23

18

24 

23

23

631.0

20.4

0.454

O.52

Aug.

21

Te

13

10 

9.0

10

10

8.6

7.4

6.0

4.8

4.2

3.8

3.2

3.2

3.0

3.O

3.0

fcf

13

11

7.8

5.7

4.5

3.8

4.O

4.8

4.0 

3.5

3.O

210.6

6.79

0.151

O.17

Sept.

4,0

9.6

19

~T,8 

5.4

4.8

13

10

7.8

5.7

4.8

4.0

3.2

2.8

S^A

2.8

3.0

3.5

3.2 

2.8

2.8

3.0

2.6

2.6

3.8

*3.8

5.4

12

9.5

7.0

172.1

5.74

0.128

0.14

Calendar year 1955: Max 874 Mln 4.2 Mean 55.4 Cfsm 1.23 In. 16.73

Water year 1955-56: Max 325 Mln 2.4 Mean 48.3 Cfsm 1.08 In. 14.62

Peak discharge (base. 200 efs). Oct. 3 (12 m. to 3 p.m.) 266 cfs (5.79 ft); Oct. 16 (7 to 9 p.m.) 

348 cfs (6.19 ft); Pebi 7 (12:30 to 6:30 p.m.) 272 cfs (5.82 ft); Mar. 18 (1 to 5 a.m.) 2O4 cfs 

(5.35 ft); Apr. 9 (12 m. to 3 p.m.) 209 cfs (5.39 ft).

* Discharge measurement made on this day.
MANOKIN RIVER BASIN 285

Manokln Branch near Princess Anne, Md.

Location. Lat 38°12'50", long 75°40 I 18", on right bank 5 ft downstream from farm bridge, 

1.4 miles northeast of Princess Anne, Somerset County, and 1.6 miles upstream from confluence with Loretto Branch.

Drainage area. 5.8 sq mi, approximately.

Records available. April 1951 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 15 ft (from topographic map).

Average discharge. 5 years, 3.70 cfs.

Extremes. Maximum discharge during year, 54 cfs Feb. 4 (gage height, 3.37 ft); minimum, 

0.3 cfs Sept. 21-23, 24, 25, 26.

1951-56: Maximum discharge, 237 cfs Aug. 13, 1955 (gage height, 6.63 ft), from 

rating curve extended above 120 cfs by logarithmic plotting; no flow Aug. 4, 8, 14, 

1954.

Remarks. Records good except those for periods of doubtful gage-height record, which are

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Dec. 9 Dec. 1O to Sept. 30

1.3 

1.6 

2.0

1.9

4.6

10

2.5

3.0 

4.0

1.0

1.1

1.2 

1.4

0.3

.6

1.4

3.2

1.7 

2.0 

2.5 

3.0

6.5

12

24

40

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

35

21

12

7.8

5.8

4.7

4.0

3.7

4.1

3.7

3.7

3.7

3.7

18

19

10

7.1

5.5

4.6

d3.8

d3.3

d2.9

d2.5

d2.3

d2.4

d2.3

*2.2

2.0

2.0

6.1 

d4.5

213.4

6.88

1.19

1.37

Nov.

d3.5

d3.0

d2.8

d2.7

d2.5

d2.5

d2.4 dfff

3.4

~8.9 16

6.2

d4.8

d3.9

d3.2

d2.7

d2.4

d3.6

5.7

4.5

3.9

d3.5

d3.2

d3.1

d2.9

d2.7

d2.6

d2.5

*d2.4

116.1

3.87

0.667

0.74

Dec.

2.2

2.2

2.4

2.5

2.5

2.2

2.0

 573 1.9

M

7.4

5.8

4.8

4.0

4.3

3.8

3.2

3.1

3.2

2.9

2.6

2.4

2.5

2.7

2.8

2.6

2.2

2.0

1.9

2.1

2.0

104.5

3.37

0.581

0.67

Jan.

1.8

1.7

TTa

1.9

*2.0

1.9

1.9

1.8

2.0

9.6

18

T6

H

7.7

6.4

5.9

12

8.0

7.0

15

13

8.8

8.4

8.2

6.3

5.3

4.4

3.6

4.0

6.0

5.4

206.8

6.67

1.15

1.33

Feb.

4.3

5.0

16

30

31

22

35

T8

12

*9.6

13

14

10

7.7

6.5

5.7

7.1

7.7

5.9

7.0

6.0

4.9

4.2

3.8

6.0

5.3

4.4

4.0

5.4

309.5

10.7

1.84

1.98

Mar.

5.0

378

4.8

4.5

3.8

3.4

3.2

5.1

7.6

5.3

4.5

3.8

*4.7

17

14

22

21

14

19

11

7.8

6.3

5.4

5.1

4.5

4.2

3.6

3.2

3.4

4.0

3.4

226.4

7.30

1.26

1.45

Apr.

2.9

2.7

2.7

2.7

2^4

7.3

37

28

15

9.6

7.2

*7.1

5.7

4.7

4.6

5.5

4.3

3.6

3.4

3.2

3.0

2.8

2.6

2.9

4.0

3.6

3.4

3.1

2.8

2.6

190.4

6.35

1.09

1.22

May

2.2

2.2

2.5

2.9

2.3

2.1

2.2

2.6

2.1

2.0

1.7

1.7

1.6

1.4

*1.3

1.3

1.1

1.2

1.0

T78

1.4

1.1

4.2

2.3

1.5

1.2

2.1

5.8

3.4

2.3

1.7

64.2

2.07

0.357

0.41

June

1.6

9.1

20

7.7

4.0

2.8

2.1

1.7

1.4

1.4

1.3

*1.0

.9

.9

.8

.7

1.0

4.9

2.2

1.5

1.4

1.3

1.0

1.0

.9

1.2

4.4

1.9

1.3

.9

82.3

2.74

0.472

0.53

July

0.9

.8

1.0

2.5

.9

.9

.9

.8

1.0

1.1

.9

.7

.7

.7

.6

.7

*1.7

3.4

1.4

.9

6 1 372"

1.9

1.4

3.3

2.0

1.2

.9

.7

.7 

.6

44.5

1.44

0.248

0.29

Aug.

0.6

.5

.5

.5

.6

.6

.5

t ^

74

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

*1.3

2.4

.9

.6

.5

.4

.4

T74'.7

.7 

.7

22.0

0.71

0.122

0.14

Sept.

0.6

.6

.7

.7

.7

 1.2

*LJ.

.7

.6

.5

.5

.4

.4

.4

.5

.4

.4

.4

.4

.4

.3

73

.3

.4

.3

.3

*.4

.6

.5

.4

16.0

0.53

0.091

0.10

Calendar year 1955: Max 175 Min O.4 Mean 5.14 Cfsm 0.886 In. 12.02

Water year 1955-56: Max 37 Min O.3 Mean 4.36 Cfsm 0.752 In. 10.23

Peak discharge (base. 50 cfs). Oct. 1 (12:30 p.m.) 5O cfs (3.5O ft)j Oct. 14 (6 p.m.) 39 cfs 

(3.20 ft); Feb. 4 (8 p.m.) 54 cfs (3.37 ft); Feb. 7 (5 to 6 a.m.) 45 cfs (3.15 ft)j Mar. 16 

(8:30 p.m.) 39 cfs (2.96 ft); Apr. 7 (2:30 a.m.) 51 cfs (3.25 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge estimated from reconstructed gage-height graph based on 

1 discharge measurement, recorded graph, weather records, and records for nearby stations.
286 WICOMICO RIVER BASIN 

Beaverdam Creek near Salisbury, Md.

Location.--Lab 38°21'05", long 75 0 34'11", on upstream side of Schumaker Dam between spillway and emergency floodgates, three-quarters of a mile upstream from Beaglin Branch 

and 2 miles southeast of Salisbury, Wicomico County.

Drainage area. 19.5 sq mi.

Records available . October 1929 to September 1956. Prior to October 1948, published as 

East Branch Wicomico River near Salisbury.

Gage. Water-stage recorder and concrete spillway of dam for control. Datum of gage is 

~^8.93 ft above mean sea level (city of Salisbury benchmark). Prior to Sept. 28, 1938, 

at site on left bank at dam at datum 9.02 ft higher.

Average discharge . 20 years (1930-32, 1938-56), 23.0 cfs.

Extremes.--Maximum discharge during year, 209 cfs Oct. 3; maximum gage height, 11.015 ft 

Oct. 1; minimum daily discharge, 1.1 cfs Oct. 25 (leakage under dam and through floodgates following closing of floodgates).

1929-56: Maximum discharge not determined, occurred Aug. 23, 1933, when dam was 

partly washed out; maximum gage height, 14.31 ft Aug. 4, 1948, from high-water mark in 

well; minimum daily discharge recorded, 0.6 cfs during several periods in 1938 and 

1939 (leakage under dam and through floodgates following closing of floodgates).

Revisions.--Figures of maximum discharge recorded for the water years 1936 and 1937 

have been revised to 234 cfs Aug. 30, 1936 (gage height, 2.53 ft) and 334 cfs July 1, 

1937 (gage height, 2.97 ft), superseding those published in WSP 801 and 821, 

respectively.

Remarks. Records good except those for periods of operation of floodgates, which are 

fair, and those for periods of no gage-height record, which are poor. Records include 

flow over spillway plus leakage through floodgates. Occasional regulation at low and 

medium flow caused by mill above station.

Revisions (water years). WSP 741: _.__...... .._

of discharge, in cubic feet per second, fqr_periods in the water years 1931, 1936-37^,

1931(m). WSP 1232: Drainage area. Revised figures 

 __. 0-, -_- ---_ r-- -econd, for periods in the water yeai 

and 1940, superseding those published in WSP 711, 801, 821, and 891, are given herewith:

1930 

Oct. 15.

1936

Aug. 30. 

31.

180

163

1937 

June 30......... 98.3

1937-Con. 

July 1...

1939 

Oct. 1.

218

147

Month

water year 1930-3 1 ........

August 1936. ................

July. .......................

Water year 1939-40. .......

Cfa-daya

-

642.5

974.9

8,384.1

Maximum

27.1

180

218

89

Minimum

2.0

7.1

13.3

.7

Mean

6.58

20.7

19 9

31.4

22.9

Per square 

mile

.337

1.06

1.61

1.17

Runoff In 

Inches

4.58

1.23

1.86

15.99
WICOMICO RIVER BASIN

Beaverdam Creek near Salisbury, M<3. Continued 

Discharge, In cubic feet per second, water year October 1955 to September 1956

287

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

L7

18

L9

20

21

22

23

24

25

26

27

28

29 

30

31

TOtal

Mean

Cfsm

In.

Oct.

84 

112

eT58

e88

e23

2.5

e34

a80

a69

a21

2.0

2.0

15

e65

e!07

e88

e27

37

40

33

e57

a80

a66

a!8

1.1

2.2

*19

e52

a79 

a67

a.20

1,498.8

48.3

2.48

2.86

Nov.

fcf

25

23

23

22

22

21

21

22

38

36

37

36

31

29

28

29

28

30

27

27

27

27

23

23

22

22

22 

21

748.4

24.9

1.28

1.43

Dec.

21 

20

20

21

19

20

18

18

23

30

27

29

29

24

24

21

20

20

23

24

21

19

19

20

19

18

18

19

17 

16

T6

653

21.1

1.08

1.25

Jan.

16 

16

16

*18

16

16

15

15

20

27

27

30

45

88

40

30

30

27

27

34

33

34

33

31

28

26

24

22

23 

24

23

854

27.5

1.41

1.63

Feb.

1

32

42

68

72

7£

64

34

43

47

52

*42

40

37

32

32

32

32

32

31

29

27

27

29

27

25

27

28

1,108

38.2

1.96

2.11

Mar.

27 

27

25

23

20

22

27

28

28

25

25

*25

26

34

35

48

59

49

64

44

41

35

28

29

32

26

26

26

26 

26

25

981

31.6

1.62

1.87

Apr.

24 

24

24

a25

a24

a26

aSO

a75

a47

a35

a31

a29

26

24

25

25

24

25

24

23

22

22

21

23

22

21

21

21

20

 

19.

832

27.7

1.42

1.59

May

19 

19

21

21

19

18

23

22

21

21

19

19

18

 18

17

17

17

17

14

19

14

12

18

1113"

12

15

18

e24 

e42

all

572

18.5

0.949

1.09

June

1.6 

a23

a50

a35

a27

a22

a!9

a!8

a!7

a!7

alS

*16

e49

e24

1.4

1.4

1.4

6.7

12

10

11

11

11

12

e25

e!8

e6.4

_1._2

tt 

5.0

465.7

15.5

0.795

0.89

July

11 

10

8.5

9.4

8.9

11

16

14

18

18

12

9.4

9.4

10

8.5

64 *3^y

17

8.9

8.5

11

17

12

15

16

11

10

11

19 

15

12

399.3

12.9

0.662

0.76

Aug.

11 

15

11

11

11

9.4

12

10

9.0

9.0

8.2

8.6

8.6

9.0

9.9

9.0

8.6

8.2

9.9

*11

18

TT

11

9.0

8.6

6il

11

9.9

8.2 

9.0

7.8

309.8

9.99

0.512

0.59

Sept.

8.2 

8.6

7.5

7.8

7.8

14

45

15

10

8.6

7.5

8.2

7.8

6.9

6.9

8.2

9.9

7.5

6.9

7.5

6.9

7.2

6.9

6.3

679

7.5

 12

14

9.4 

8.2

295.1

9.84

0.505

0.56

Calendar year 1955: Max 311 Mln 1.1 Mean 28.5 Cfsm 1.46 In. 19.80

Water year 1955-56: Max 112 Min 1.1 Mean 23.8 Cfsm 1.22 In. 16.63

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of reconstructed gage-height trace when 

gates were open or weather records and records for Rewastico Creek near Hebron.

e Plow through floodgates; discharge computed on basis of flow through 1, 2, or 3 floodgates, over 

spillway, and leakage through closed floodgates.
288 NANTICOKE RIVER BASIN

Nanticoke River near Bridgeville, Del. 

(Formerly published as Gravelly Fork near Bridgeville)

Location (revised).--Lat 38°43'42", long 75°33'44", on left bank at highway bridge, 800 ft 

downstream from Gum Branch and 2.5 miles southeast of Bridgeville, Sussex County.

Drainage area.--75.4 sq mi.

Records available. April 1943 to September 1956. Prior to October 1955, published as 

Gravelly Fork near Bridgeville.

Gage. Water-stage recorder and timber control. Altitude of gage is 15 ft (from topographic map). Prior to Apr. 19, 1947, staff gage at same site and datum.

Average discharge.--13 years, 84.2 cfs.

Extremes.--Maximum discharge during year, 270 cfs Mar. 17 (gage height, 4.84 ft); minimum, 

24 cfs Sept. 23, 24 (gage height, 1.89 ft).

1943-56: Maximum discharge, 830 cfs June 5, 1948 (gage height, 6.40 ft); minimum 

observed, 6.3 cfs Sept. 29, 1943.

Remarks. Records good except those for period of shifting control, which are fair.

Revisions (water years). WSP 1111: 1947. WSP 1232: 1945-49. Corrected figure of discharge, in cubic feet per second, for the water year 1945, superseding that published 

in WSP 1031, is given herewith:

Jan. 11, 1945............. 127

Month Cfs-days

32,836

Maximum

347

530

Minimum

94

24

Mean

140

90.0

Per square 

mile

1.86

1.19

Runoff in 

inches

2.14

16.20

Rating table, water year 1955-56, except period of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

1.9

2.0 

3.0 

3.5

74

107

4.0 

4.5 

5.0

153

214

303

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

76

86

84

73

62

57

53

52

53

50

47

44

44

49

61

59

54

50

47

45

43

42

38

38

41

42

43

*44

46

52

58

1,633

52.7

0.699

0.81

Nov.

58

56

53

52

50

49

48

49

49

50

69

73

73

70

66

61

58

55

59

73

76

76

73

68

63

61

58

56

55

53

1,810

60.3

0.800

0.89

Dec.

51

*49

49

49

48

47

45

44

49

61

60

57

54

51

51

50

48

47

47

46

44

42

42

45

46

46

44

42

40

42

41

1,477

47.6

0.631

0.73

Jan.

40

38

39

40

40

*40

39

37

35

59

76

86

93

91

80

73

73

73

70

71

72

72

71

70

66

66

62

59

59

66

71

1,930

62.3

0.826

0.95

Feb.

72

73

93

112

141

164

*184

209 238"

177

160

162

181

174

153

137

126

122

122

122

117

109

101

94

102

112

119

118

107

3,869

133

1.76

1.91

Mar.

96

91

91

95

95

94

91

93

108

118

113

102

98

120

177

*246

268

262

251

236

220

192

165

148

137

128

121

113

109

108

108

4,394

142

1.88

2.17

Apr.

105

98

94

94

93

91

102

133

166

166

141

121

107

97

91

92

*91

87

82

78

76

73

71

72

76

76

78

75

72

70

2,868

95.6

1.27

1.41

May

67

65

70

74

72

67

66

66

63

60

60

60

58

57

54

52

*49

48

46

49

49

47

50

54

49

45

52

86

69

57

51

1,812

58.5

0.776

0.89

June

54

91

143

169

140

102

76

65

59

56

58

*58

54

48

45

45

41

40

40

38

42

51

48

48

44

40

38

36

35

32.

1,836

61.2

0.812

0.91

July

30

30

29

28

49

83

107

128

168

172

198

170

123

85

61

53

72

69

55

50

68

73

76

70

59

51

66

69

57

50

46

2,445

78.9

1.05

1.21

Aug.

42

41

39

38

44

53

49

43

38

36

35

33

32

33

32

31

29

29

27

29

38

*37

33

30

28

27

29

28

32

32

29

1,076

34.7

0.460

0.53

Sept.

28

38

68

62

43

38

40

38

32

30

31

30

30

30

30

30

29

29

29

29

27

26

25

*30

36

32

36

48

47

42

1,063

35.4

0.469

0.52

Calendar year 1955: Max 640 Min 21 Mean 78.2 Cfsm 1.04 In. 14.08

Water year 1955-56: Max 268 Mln 25 Mean 71.6 Cfsm 0.950 In. 12.93

Peak discharge (base. 450 efsi. No peak above base.

* Discharge measurement made on this day.

Note. Shifting-control method used Oct. 1 to Feb. 1.
NANTICOKE RIVER BASIN 289

Trap Pond Outlet near Laurel, Del.

Location. Lat 38°31'40", long 75°29'00", on left bank at downstream end of concrete

spillway channel, 200 ft downstream from Trap Pond Dam and 5 miles southeast of Laurel, 

Sussex County.

Drainage area.--16.7 sq mi.

Records available. June 1951 to September 1956.

Page. Water-stage recorder and concrete control. Altitude of gage is 20 ft (from topographic map).

Average discharge. 5 years, 15.9 cfs.

Extremes. Maximum discharge during year, 94 cfs Oct. 15 (gage height, 2.19 ft); minimum, 

0.30 cfs Sept. 27.

1951-56: Maximum discharge, 200 cfs Jan. 29, Mar. 25, 1952 (gage height, 2.74 ft); 

minimum, 0.01 cfs Aug. 22, 23, 29, 30, 1954 (gage height, 0.50 ft).

Remarks.--Records good. Flow regulated by Trap Pond.

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

.9

1.1

0.40 

2.5 

4.1 

9.1

1.4 

1.7

2.0

2.1

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfsm

In.

Oct.

18 

23

20 

15

12

11

10

9.8

10

8.8

8.3

8.0

29~7.7

£1

63

39

28

22

18

16

14

13

13

14

13

13

12

12

18

16

595.6

19.2

1.15

1.33

Nov.

16 

15

14 

12

12

12

11

11

10

14

27

M

27

22

19

17

14

13

17

21

23

20

18

15

14

14

14

13

*13

12

494

16.5

0.988

1.10

Dec.

12 

12

12 

12

12

11

11

11

15

21

23

19

16

15

14

13

12

13

12

12

11

10

11

11

11

11

10

9.4

~o~S 9.1 

3,0

9.4

390.7

12.6

0.754

0.87

Jan.

8.8 

8.8

9.1 

9.1

8.5

8.8

8.5

 STs 7.7

21

28

39

35

28

23

21

22

23

22

25

30

26

24

23

21

19

17

15

16

16

18

591.1

19.1

1.14

1.32

Feb.

16 

17

23 

35

il

58

61

61

*43

34

34

42

39

32

26

24

24

24

24

24

23

21

19

19

22

24

22

18

17

887

30.6

1.83

1.98

Mar.

16 

17

18 

18

17

16

15

18

22

20

18

16

18

28

44

41

53

47

46

42

33

28

24

22

22

21

19

18

19

19

18

773

24.9

1.49

1.72

Apr.

16 

15

16 

16

14

17

26

il

41

30

*24

20

18

17

17

18

16

15

14

13

13

12

11

14

14

14

14

13

12

10

531

17.7

1.06

1.18

May

10

10

14 

15

18

15

15

15

14

12

12

10

12

9.8

 8.3

6.6

7.4

8.0

8.0

8.8

7.4

7.1

9.1

6.6

6.3

5,1

7.7

10

7.7

5 9 e!i

308.7

9.96

0.596

0.69

June

7.9 

18

ft

13

11

9.1

8.3

7.4

7.7

8.3

*6.6

5.9

5.6

4.8

9.4

15

8.5

6.1

5.0

6.6

6.6

5.6

8.3

5.6

5.2

9.8

6.3

4.3

3 9

262.8

8.76

0.525

0.59

July

3.5

3.3

3.0 

2^4

1^

4.5

4.1

7.3

12

9.1

5.4

4.1

3.6

3.0

2.8

*3.1

3.1

3.0

2.7

2.4

29

27

16

12

9.8

7.1

13

18

19

15 9 8

263.3

8.49

0.508

0.59

Aug.

fc*

5.6 

5.0

6.9

6.6

5.6

4.5

4.1

3.5

3.3

3.0

3.0

2.8

2.7

2.7

2.5

2.4

2.4

2.3

2.3

2.5

2.4

2.3

2.3

2.2

2.2

2.2

2.2

2.2

2.1

107.8

3.48

0.208

0.24

Sept.

H

1.6 

1.8

1.7

1.6

1.6

1.6

1.4

1.3

1.2

1.2

1.3

1.4

1.4

1.4

1.6

1.5

1.5

1.4

1.4

1.3

1.3

1.3

1.4

*.86

 *Q

755

1.2 

1.4

41.04

1.37

0.082

0.09

Calendar year 1955: Max 141 Mln 0.40 Mean 14.6 Cfsm 0.874 In. 11.88

Water year 1955-56: Max 81 Mln 0.40 Mean 14.3 Cfsm 0.856 In. 11.70

Peak discharge (base, 100 cfs). No peak above base. 

* Discharge measurement made on this day.
290 NANT1COKE RIVER BASIN

Holly ditch rear Laurel, Del. 

(Formerly published as Holly Branch near Laurel)

Location. Lat 38°32'20", long 75°35'55", on left bank 5 ft upstream from culvert on highway, l£ miles southwest of Laurel, Sussex County, and 2.6 miles upstream from mouth.

Drainage area. 2.19 sq mi.

Records available.--August 1950 to September 1956 (discontinued). Prior to October 1955, 

published as Holly Branch near Laurel.

Gage. Water-stage recorder and wooden control. Datum of gage is 24.86 ft above mean sea 

level, datum of 1929.

Average discharge. 6 years, 0.315 cfs.

Extremes.--Maximum discharge during year, 1.3 cfs Mar. 19 (gage height, 1.14 ft); no flow 

for many days.

1950-56: Maximum discharge, 12 cfs Mar. 24, 1952 (gage height, 1.69 ft); no flow 

for many days each year.

Remarks. Records good except those for period of no gage-height record, which are poor.

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

0.67 

.7

.9

.01 

.08 

.20

1.0

1.1

1.2

0.44 

.99 

1.8

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

I

Z

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0.21

.16

.18

.20

.20

.18

.15

.14

.10

.09

.08

.08

.06

72TJ

.34

.44

744

.44

.40

.31

.31

.26

.22

.24

.22

*.20

.18

.15

.15

.21

.15

6.69

0.216

0.099

0.11

Nov.

0.15

.13

.13

.11

.10

.09

.08

.07

.05 TOT

.18

.14

.15

.20

7T5

.20

.16

.10

.15

.18

.18

.18

.20

.16

.13

.16

.13

.15

*.ll

.08

4.06

0.135

0.062

0.07

Dec.

0.04

.04

.06

TOT

.02

00"

0

0

.01

o

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.21

0.007

0.0032

0.004

Jan.

(*)

0

0

0

0

Feb.

0

.01

.03

.04

.08

.05

.10

.60

*.74

.68

.74

.80

.74

.68

.68

.58

.63

.63

.53

.58

.48

.48

.48

.44

.48

.40

.40

.40

.31

12.79

0.441

0.201

0.22

Mar.

0.28

.37

.31

.28

.26

.26

.26

.28

.21

722

.24

.22

.22

.37

.44

.68

.92

.99

1.2 *T7T

1.1

.99

.86

.86

.74

.74

.63

.58

.58

.58

.48

17.25

0.556

0.254

0.29

Apr.

0.44

.44

.44

.44

.37

.37

.53

.74

768

.63

*.58

.53

.48

.44

.48

.48

.37

.37

.31

.31

.28

.28

.24

.24

.21

.22

.18

.18

.15

.14

11.55

0.385

0.176

0.20

May

0.09

.08

.14

7TT

.08

.07

.08

.04

0

0

0

0

O

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.69

0.022

0.010

0.01

June

(*)

0

0

0

0

July

(*)

0

0

0

0

Aug.

(*)

0

0

0

0

Sept.

(*)

0

0

0

o

Calendar year 1955: Max 1.7 Mln 0 Mean 0.112 Cfsm 0.051 In. 0.69

Water year 1955-56: Max 1.2 Mln 0 Mean 0.145 Cfsm O.066 In. 0.90

Peak discharge (base, 4.5 cfs). No peak above base. 

* Discharge measurement or observation of no flow made on this day.

Note.--No gage-height record Jan. 18 to Feb. 8; discharge estimated on basis of weather records, 

recorded range in stage, and records for Trap Pond Outlet near Laurel and Stockley Branch atStockley.
NANTICOKE RIVER BASIN 291

Marshy Hope Creek near Mamsville, Del.

Location. Lat 38°51'00", long 75°40'29", on left bank 10 ft upstream from highway bridge, 

1.5 miles northeast of Adamsvllle, Kent County, 1.7 miles upstream from Saullsbury 

Creek, and 5.3 miles northwest of Greenwood.

Drainage area. 44.8 sq ml.

Records available. April 1943 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 28.21 ft above mean sea level, datum of 

1929. Prior to Nov. 24, 1953, wire-weight gage and crest-stage Indicator at site 10 ft 

downstream at same datum.

Average discharge. 13 years, 50.2 cfs.

Extremes. Maximum discharge during year, 310 cfs Mar. 15 (gage height, 7.72 ft); minimum, 5.5 cfs Sept. 24.

1943-56: Maximum discharge, 1,040 cfs (revised) July 1, 1946 (gage height, 9.63ft); 

minimum observed, 2.7 cfs Sept. 19, 1943.

Maximum stage known, 14.5 ft in August 1937, from Information by local residents.

Revisions. The maximum discharge for the water year 1946 has been revised to 1,040 

cfs July 1, 1946 (gage height, 9.63 ft), superseding revised figure published in 

WSP 1202 and confirming original figure published in WSP 1051. The maximum discharge 

for the water year 1952 has been revised to 1,020 cfs Aug. 10, 1952 (gage height, 

9.40 ft), superseding figure published in WSP 1232.

Remarks. Records fair.

Revisions (water years) . WSP 1141: 1948(P). Revised figures of discharge, in cubic feet 

per second, for some days in the water years 1948 and 1952, superseding those published 

in WSP 1111 and 1232, are given herewith:

1948 

June 3................ 231

Aug. 6................ 342

1952 

Aug. 10................ 947

Month

Water year 1947-4S. 

Calendar year 1948.

Water year 1951-52. 

Calendar year 1952.

Cfs -days

27,935.1 

36,825.13

Maximum

762 

762

947 

947

Minimum

4 4 

8 9

5 2

6 1

Mean

63.7

76.3 

101

87.6 

75.9

Per square 

mile

3.48

1.42

1.70 

2.25

1.96 

1.69

Runoff in 

inches

4.25

3.89

1.64

23.21 

30.59

2.77

26.62 

23.07

Revised peak discharge.--1951-52; Dec. 22 (7 a.m.) 990 cfs (9.35 ft); Aug. 10 

(2 p.m.) 1,020 cfs (9.40 ft).

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

16

15

13

12

11

11

11

11

11

10

10

9.6

9.4

11

13

13

12

11

11

10

9.8

9.5

9.0

9TZ

10

9.8

9.5

*9.2

9.0

17

22

355.0

11.5

0.257

0.29

Nov.

18

16

14

14

14

13

13

12

TZ

12

29

31

25

21

20

19

18

16

18

37.

33

28

25

23

22

21

20

19

18 

17

598

19.9

0.444

0.50

Dec.

16

*15

15

15

15

15

14

13

14

17

17

16

15

14

14

14

13

13

13

13

12

TZ

12

12

13

12

12

12

12 

12

12

424

13.7

0.306

0.35

Jan.

12

11

TZ

12

12

*12

11

11

11

17

34

54

4T

37

31

28

27

27

26

28

30

27

28

27

25

23

21

20

20 

27

36

744

24.0

0.536

0.62

Feb.

29

28

5T

60

105

84

174

*178 TT9~

86

79

130

106

76

63

56

51

65

77

61

53

45

40

36

47

72

58

50

42

2,121

73.1

1.63

1.76

Mar.

36

34

38

43

42

37

34

40

84

60

49

46

46

108

264

*264

258

204

175

164

138

103

79

66

59

52

47

42

40 

47

43

2,742

88.5

1.98

2.28

Calendar year 1955: Max 685 Min 6.7 Mea

Apr.

37

34

33

38

36

32

53

149

154

68

56

48

42

40

41

54

47

40

35

32

30

28

30

30

31

30

30 

29

1,431

47.7

1.06

1.19

n 36.0

May

27

25

27

29

57

24

22

22

20

19

19

18

18

18

16

15

*15

14

14

14

14

13

T5

17

15

14

15

25

22 

17

15

585

18.9

0.422

0.49

June

20

50

79

55

35

26

22

19

17

16

23

23

18

15

14

13

13

12

*12

12

13

16

14

15

15

13

12

12

12

JU

628

20.9

0.467

0.52

Cfsm 0.804

July

11

IT

11

11

32

137

73

35

144 m

74

41

29

25

22

21

72

55

32

25

69

75

47

*33

27

24

28

52

43

38

29

1,470

47.4

1.06

1.22

Aug.

23

20

18

17

19

23

23

20

17

16

15

14

14

14

13

13

13

13

13

13

23

*26

15

13

12

12

11

10 

10

9.6

492.6

15.9

0.355

0.41

Sept.

9.2

Bt?

8.8

8.4

8.3

8.2

9.0

8.6

8.0

7.6

7.5

7.3

7.0

6.8

6.7

6.8

6.7

7.0

6.8

6.4

6.2

6.0

5.7

6.0

*6.3

6.1

6.8

7.9

7.6

7.1

219.7

7.32

0.163

0.18

In. 10.91

Water year 1955-56: Max 264 Min 5.7 Mean 32.3 Cfsm 0.721 In. 9.81

Peak discharge (base, 450 cfs). No peak above base. * Discharge measurement made on this day.
292 NANTICOKE RIVER BASIN

Faulkner Branch at Federalsburg, Md.

Location. Lat 38°42'45", long 75°47'35", on right bank 25 ft downstream from highway

bridge on Nichols Road, 0.9 mile upstream from mouth, and 1 mile northwest of Federalsburg, Caroline County.

Drainage area. 7.10 sq mi.

Records available.--July 1950 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 15 ft (from topographic map).

Average discharge. 6 years, 8.17 cfs.

Extremes. Maximum discharge during year, 94 cfs July 9 (gage height, 2.50 ft); minimum, 

1.3 cfs Sept. 14, 17, 23, 24 (gage height, 1.18 ft); minimum daily, 1.4 cfs Sept. 14, 

20-23.

1950-56: Maximum discharge, 433 cfs Aug. 13, 1955 (gage height, 4.10 ft), from 

rating curve extended above 79 cfs on basis of slope-area determination of peak flow; 

no flow for part of each day Aug. 8, 11, 14, Oct. 14, 1954, July 23, 24, July 26 to 

Aug. 7, 1955; minimum daily discharge, 0.2 cfs Aug. 2, 1955.

Remarks. Records good. Diversion for irrigation of about 100 acres above station during 

some years.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

1.1

1.2

1.3

1.4

0.5 

1.6 

3.4 

6.1

1.5 

1.7 

2.0 

2.5 94

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5 

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cram

In.

Oct.

16

IT

8.6

7.8

7.1

6.8

6.4

6.8

6.4

6.1

5.8 

5.5

6.6

8.6

7.1

6.4

6.1

5.8

5.5

5.5

5.2

5.0

5.0

5.0

5.0

»4.7

477

4.7

16

12

220.6

7.12

1.00

1.16

Nov.

8.2

7.8

7.4

7.1

6.8

6.8

6.4

6.1 676"

IS.

12 

10

9.4

9.0

8.6

8.2

7.4

9.8

14

11

10

9.4

9.0

8.6

8.6

8.2

9.0

7.8

7.4

263.9

8.80

1.24

1.38

Dec.

7.1

678

6.4

6.8

6.

6.

6.

7.

7.

6.

6.

6. 

6.

6.

5.8

5.5

5.5

5.5

5.0

5.0

4.7

5.0

5.0

5.0

4.7

4.4

4.4

4.4

4.7

4.4

175.8

5.67

0.799

0.92

Jan.

4.4

4.4

4.4

4.4

4.4

4.4

4.2

4.4

8.2

9.4

9.8 970"

7.8

7.4

7.4

8.6

7.8

7.8

9.0

9.0

8.2

8.6

8.2

7.4

7.4

7.1

6.8

6.8

7.8

7.1

216.0

6.97

0.982

1.13

Feb.

6.8

7.4

15

16

19

34

*23

20

18

19

21

18 

16

15

14

14

15

14

14

13

12

11

11

14

13

11

11

9.8

446.0

15.4

2.17

2.34

Mar.

9.0

974

10

11

9.8

9.8

13

14

12

11

11

12 

26

30

23

*29

21

25

21

18

16

15

14

13

12

11

11

10

11

10

458.0

14.8

2.08

2.40

Apr.

9.4

9.0

9.8

11

10

15

21

15

13

11

10

9.0

9.0

9.4

8.6

8.2

7.8

7.4

7.1

7.1

6.8

7.1

6.8

7.1

6.8

6.4

6.4

6.1

280.1

9.34

1.32

1.47

May

5.8

5.8

6.8

7.5

6.1

6.1

5.5

5.0

5.0

4.7

4.7

4.2

4.0

3.7

3.4

*3.4

3.4

4.0

3.4

3.2

3.4

2.8

578

2.8

4.8

8.6

47T

4.4

4.0

145.8

4.70

0.662

0.76

June

15

26

IB

10

7.4

6.8

6.1

6.1

5.8

5.8

5.0

4.4

4.2

4.0

4.7

*4.0

3.7

3.4

4.0

4.0

3.4

5.0

3.7

3.2

3.2

3.0

2.8

2.6

186.6

6.22

0.876

0.98

July

2.6

2.6

2.4

2.4

2.8

2.6

21

*58

27

12

8.6

6.4

5.5

5.2

5.5

5.5

5.0

5.0

11

6.8

7.8

8.6

6.4

5.8

6.4

6.1

5.5

5.0

4.7

264.2

8.52

1.20

1.38

Aug.

4.7

4.4

4.2

4.2 

5.0

4.7

4.2

4.0

3.4

3.4

3.2

3.0

3.7 

3.2

2.8

2.6

2.6

2.4

2.4

2.6

5.0

*3.2

2.6

2.4

2.2

2.2

3.4

2.6

2.2

2.0

57o

100.5

3.24

0.456

0.53

Sept.

1.9

1.9

1.9

1.8

1.9

2.2

272

1.9

1.8

1.8

1.8

1.6 

1.4

ITS

1.8

1.6

1.6

1.6

1.4

1.4

1.4

1.4

2.0

1.9

1.6

1.6

1.9

1.8

1.6

52.1

1.74

0.245

0.27

Calendar year 1955: Max 241 Min 0.2 Mean 8.10 Cfsm 1.14 In. 15.48

Water year 1955-56: Max 58 Min 1.4 Mean 7.68 Cfsm 1.08 In. 14.72

Peak discharge (base, 60 efs).--July 9 (1 to 2 a.m.) 94 cfs (2.50 ft). 

Discharge measurement made on this day.
NANTICOKE RIVER BASIN 293

Rewastlco Creek near Hebron, Md.

Location. Lat 38°24'40", long 75°45'15", on left wing wall of old mill sluiceway, 10 ft 

upstream from bank of stoplogs, on right bank of Rewastico Pond at outlet, 1.5 miles 

upstream from Little Creek, 2.8 miles north of Quantico, and 3.5 miles southwest of 

Hebron, Wicomico County.

Drainage area. 12.2 sq mi.

Records available. December 1949 to September 1956 (discontinued).

Gage. Water-stage recorder. Datum of gage is 1.8 ft above mean sea level, datum of 1929. 

Prior to May 16, 1950, staff gage at same site and datum.

Average discharge. 6 years (1950-56), 8.88 cfs.

Extremes. Maximum discharge during year, 56 cfs June 3 (gage height, 3.84 ft); minimum, 

1.6 cfs Sept. 21-24 (gage height, 2.30 ft).

1949-56: Maximum discharge, 153 cfs Aug. 13, 1955 (gage height, 5.21 ft), from 

rating curve extended above 82 cfs by rectangular plotting and weir formula; minimum, 

0.8 cfs Oct. 18, 19, 1954 (gage height, 2.16 ft).

Remarks. Records good except those for period of no gage-height record, which are fair. 

Records comprised of flow through sluiceway and through 42-inch culvert.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

14

14

10

8.5

7.9

7.7

7.2

7.4

8.5

7.7

7.2

6.7

6.5

7.7

11

10

8.8

7.7

7.2

6.9

6.7

6.5

6^3

6.5

7.4

7.2

*6.9

6.7

6.7

9.0

9 . 6

252.1

8.13

0.666

0.77

Nov.

8.2

7.7

7.2

7.4

7.2

6.9

6.9

6.7

677

7.9

20

TI

11

9.7

9.1

8.2

8.2

7.6

9.4

14

a!2

alO

a9.0

a8.5

a8.0

a8.5

a8.5

a8.5

a8.0

*7.6

272.6

9.09

0.745

0.83

Dec.

7.3

7.3

7.3

7.6

7.6

7.0

6.5

6.5

9.7

14

11

8.8

7.9

7.6

7.6

7.0

6.5

6.7

7.3

6.5

6.0

6.0

6.2

6.5

6.5

6.2

6.0

5.5

5.5

5.8

5 . 8

223.5

7.21

0.591

0.68

Jan.

5.5

"5T5 5.3

5.5

*5.5

5.5

5.5

5.3

5.5

14

i§

16

12

10

9.1

8.9

14

11

10

12

12

11

11

11

9.4

8.8

8.2

7.9

8.5

9.7

9.4

291.0

9.39

0.770

0.89

Feb.

8.2

97T

16

25

31

24

38

26

20

*17

22

26

20

18

16

15

15

16

15

15

14

12

12

12

14

14

12

12

11

505.3

17.4

1.43

1.54

Mar.

10

IT

11

12

11

11

10

14

17

13

12

11

*12

24

25

25

28

22

28

21

17

15

14

14

13

13

12

12

12

12

12

474

15.3

1.25

1.44

Apr.

11

10

10

11

10

11

26

32

22

16

14

*12

12

11

11

12

12

11

10

9.4

9.1

8.8

8.5

9.1

10

9.4

9.1

8.5

8.2

7.9

362.0

12.1

0.992

1.10

May

7.0

7.0

8.8

9.7

172

7.3

7.0

7.0

6.5

6.2

6.2

6.2

6.2

6.0

*5.3

5.3

5.1

5.5

5.5

7.3

6.2

5.5

6.0

5.3

4.9

4.8

6.0

8.5

6.2

5.1

4.9

196.7

6.35

0.520

0.60

June

8.1

22

44

19

12

9.1

7.6

6.7

6.5

6.5

6.2

5.8

5.1

4.9

4.8

4.8

4.6

5.1

5.5

4.9

4.9

4.8

4.1

4.6

4.1

3.6

6.2

5.5

4.1

3^5

238.6

7.95

0.652

0.73

July

3.0

2.7

2.6

370

4.4

6.2

14

8.8

14

12

7.6

5.3

4.6

4.4

4.1

4.0

*6.7

20

8.5

5.3

6.7

6.2

6.0

8.2

5.8

4.8

4.4

4.6

4.3

4.0

3.7

199.9

6.45

0.529

0.61

Aug.

3.4

3.2

3.4

3.2

3.9

4.6

ITS

3.6

3.1

2.8

2.5

2.7

2.7

2.6

2.4

2.4

3.0

2.8

2.5

2.4

*3.9

4.1

3.4

2.6

2.2

2.1

277

3.0

2.6

2.4

2.2

92.7

2.99

0.245

0.28

Sept.

2.3

2.5

3.6

277

2.3

2.2

3.0

3.2

2.5

2.1

1.9

1.9

1.8

1.7

1.7

1.9

2.0

2.2

2.0

1.8

1.7

1.6

T76

1.8

2.4

2.3

2.2

3.4

3.4

2.7

68.4

2.28

0.187

0.21

Calendar year 1955: Max 128 Mln 1.9 Mean 8.97 Cfsm 0.735 In. 9.97

Water year 1955-56= Max 44 Mln 1.6 Mean 8.68 Cfsm 0.711 In. 9.68

Peak discharge (base. 40 cfs). Feb. 7 (7:30 a.m.) 42 cfs (3.59 ft); June 3 (4:30 a.m.) 56 ofs 

(3.84 ft}.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

stations.

505690 O - 59 - 20
294 TRANSQUAKING RIVER BASIN 

Chicamacomico River near Salem, Md.

Location.--Lat 38°30'45", long 75°52'50", on left bank 30 ft downstream from Big Mill Pond 

dam, 1.6 miles east of Salem, Dorchester County, 3.5 miles northwest of Vienna, and 

13 miles upstream from mouth.

Drainage area. 15.0 sq mi.

Records available. April 1951 to September 1956.

Gage.--Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 5 years, 15.4 cfs.

Extremes. Maximum discharge during year, 78 cfs Mar. 14 (gage height, 2.71 ft); minimum, 

3.4 cfs Sept. 24 (gage height, 0.56 ft).

1951-56: Maximum discharge, 326 cfs Jan. 28, 1952 (gage height, 3.92 ft); minimum, 

1.0 cfs Dec. 7, 22, 1954, result of freezeup; minimum gage height, 0.24 ft Dec. 7, 

1954.

Remarks. Records fair. Some regulation by Big Mill Pond. 

Revisions (water years). WSP 1332: 1952.

Rating table, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Oct. 24 to Dec. 1JL, 

June 1 to July 29)

0.5

.7

1.0

1.4

2.9

4.5

7.3

12

1.8 

2.2

2.6

20

Discharge, In cubic feet per second, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

20

15

12

11

11

11

11

12

13

11

10

9.6

9.5

12

18

15

14

14

13

12

11

9.9

9.2

10

9.3

8.7

*8.7

 9~3 8.6

19

17

374.5

12.1

0.807

0.93

Nov.

12

11

11

12

11

10

11

11

11

12

23

TS

13

12

11

11

11

10

12

17

13

12

11

11

10

11

11

11

10

*9_.J3

357.6

11.9

0.793

0.89

Dec.

9.1

9.0

9.3

9.3

9.3

8.7

8.4

874

12

17

15

14

13

12

13

12

12

12

13

12

11

11

11

11

12

11

11

10

10

10

10

346.5

11.2

0.747

0.86

Jan.

9.9

9.7

9.7

10

*10

9.7

10

10

9.8

20

23

T?

16

14

12

12

16

14

13

15

16

14

14

13

12

12

11

11

12

13

13

403.8

13.0

0.867

1.00

Feb.

11

T2

22

25

33

27

46

36

27

*23

25

32

27

23

21

19

19

20

18

18

17

16

15

14

17

17

15

15

14

624

21.5

1.43

1.55

Mar.

13

IT

14

16

15

14

43

46

54

36

30

25

*26

50

64

51

66

47

49

39

32

28

25

24

22

20

20

18

18

19

i a 19

956

30.8

2.05

2.37

Apr.

17

16

17

17

16

17

32

44

34

25

22

19

18

17

17

*19

18

16

15

14

14

13

13

14

15

14

14

13

12

12

544

18.1

1.21

1.35

May

11

11

13

14

16

13

13

13

12

12

11

10

10

9.7

9.1

9.0

8.6

*9.0

8.6

9.6

9.0

8.8

11

9.3

8.3

8.1 in

13

11

9 6

9 5

329.8

10.6

0.707

0.82

June

9.5

14

15

13

12

11

10

10

10

10

10

10

10

9.6

9.3

9.2

9.0

*9.1

10

10

9.8

10

9.6

10

9.5

8.8

8.3

8.2

7.9

7.5

300.3

10.0

0.667

0.74

July

7.1

6.9

6.7

6.6

6.5

6.5

6.6

6.6

7.0

7.9

8.0

7.5

7.1

6.8

6.4

d5.9

d5.9

*d6.2

d6.0

d6.2

8.3

773

7.6

6.9

6.4

5.8

5.7

5.6

5.5

5 2

5.1

204.3

6.59

0.439

0.51

Aug.

5.0

5.0

5.0

5.0

5.3

"sTi" 5.6

5.5

5.4

5.0

4.5

4.3

4.3

4.3

4.0

3.9

3.9

3.9

4.0

3.6

*4.3

4.7

5.0

5.2

4.7

4.2

5.0

5.2

4.7

4.3

4.2

144.4

4.66

0.311

0.36

Sept.

4.1

4.3

4.2

3.9

4.0

4.5

8.8

7.1

5.2

4.5

4.4

4.6

4.3

4.3

3.9

4.4

4.7

4.7

4.1

4.3

3.9

3.8

3.8

3.9

4.6

4.2

*3.7

5.1

5.9

5 * 9

139.1

4.64

0.309

0.34

Calendar year 1955: Max 264 Mln 1.8 Mean 13.4 Cfsm 0.893 In. 12.12

Water year 1955-56: Max 66 Mln 3.6 Mean 12.9 Cfsm 0.860 In. 11.72

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge estimated on basis of 1 discharge measurement, weather 

records, and records for nearby stations.
CHOPTANK RIVER BASIN 295

Culbreth Marsh ditch near Chapeltown, Del. 

(Formerly published as Shades Branch near Chapeltown)

Location. Lat 39°04'45", long 75°41'05", on downstream side of right abutment of highway 

 bridge, 1.6 miles south of Chapeltown, Kent County, 3.0 miles upstream from mouth, and 

3.1 miles west of Willow Grove.

Drainage area. 11.6 sq mi.

Records available. January 1951 to September 1956 (discontinued). Prior to October 1955, 

published as Shades Branch near Chapeltown.

Gage. Mater-stage recorder. Altitude of gage is 45 ft (from topographic map). 

Average discharge. 5 years, 14.9 cfs.

Extremes. Maximum discharge during year, 264 cfs Mar. 14 (gage height, 5.35 ft); minimum, 

1.0 cfs June 15; minimum daily, 1.5 cfs Sept. 4, 5, 25, 26.

1951-56: Maximum discharge, 642 cfs Dec. 21, 1951 (gage height, 7.27 ft); no flow 

for part of each day July 22 to Aug. 2, Aug. 13, 19, Sept. 7, 9, 10, 1954, July 22, 23, 

1955; minimum daily, 0.3 cfs Aug. 1, 14, 18, 23, 24, 1954, July 20, 1955.

Remarks. Records fair. Diversion for irrigation above station during May and June.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3 

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

Zl

Z2

23

24

25

26

27

28

29

30

31

ttotal

Mean

Cfsm

In.

Oct.

3.1

2.9

2.8 

Z.6

2.6

2.6

2.6

3.5

3^3"

3.1

2.9

Z.9

3.1

3.5

3.3

3.1

3.1

2.9

2.8

2.6

2.4

2.4

2.4

2.4

2.4

2.2

2.0

2^

2.9

 3.3

87.4

2.82

0.243

0.28

Nov.

Z.9

2.8

2.6 

Z.6

Z.6

2.4

Z.4

2.2 

2^0

2.4

a . 4

7.6

6.5

6.3

6.0

5.8

5.5

4.8

5.5

8.1

7.6

6.8

6.5

6.3

5.5

5.8

5.3

5.5

*5.1

4.8

148.6

4.95

0.427

0.48

Dec.

4.6

4.6

±*S 

4.6

4.6

4.4

4.2

4.2 

4.4

4.4

4.2

3.9

3.9

3.7

4.2

3.9

3.7

3.7

3.7

3.5

3.3

3.5

3.7

3.7

3.9

3.7

3.1

Z.9

Z.9

3.5

3.1

120.5

3.89

0.335

0.39

Jan.

3.1

2.9

3.1 

3.5

3.1

 2.8

2.8

H3.5

5.5

~9.7 11

8.3

7.3

6.8

6.8

5.8

5.8

6.3

5.5

5.1

5.5

5.1

4.6

4.4

3.7

3.3

3.9

6.3

8.6

159.3

5.14

0.443

0.51

Feb.

6.5

37T

18 

21

25

36

67

Z7 

Z2

 20

26

35

23

18

17

15

16

35

24

19

16

13

11

10

16

19

14

13

10

__ _ _ _

601.6

20.7

1.78

1.93

Mar.

9.4

10

10 

9.7

8.9

*8.9

8.9

13 

16

12

12

11

14

139

76

74

82

40

34

39

43

38

30

26

22

20

17

16

16

18

15

888.8

28.7

2.47

Z.85

Apr.

13

13

*14 

16

14

13

32

s21

18

15

14

12

12

19

21

15

13

12

11

11

10

10

10

11

12

11

11

10

496

16.5

1.42

1.59

May

8.9

8.9

9.7 

9.4

8.1

7.6

7.8

6.8 

6.3

6.3

*5.8

5.8

5.8

5.3

4.6

4.6

3.9

3.4

3.2

3.6

3.1

3.3

4.4

3.3

3.1

2.9

4.6

6.0

4.8

4.4

4.4

170.1

5.49

0.473

0.55

June

4.Z

4.8

4!e

4.4

4.2

3.7 

3.3

3.3

 3.3

3.1

Z.5

Z.4

2.2

Z.5

2.4

2.8

2.8

2.8

3.3

3.7

3.3

3.7

3.7

3.3

3.3

3.1

3.1

2.9

103.8

3.46

0.298

0.33

Calendar year 1955: Max 249 Mln 0.3 Mean 8.71 Cfsm 0.751

July

3.1

2.9

3.7 

3.3

3.3

3.3

2.8

Z.8 

3.7

3.5

2.6

2.4

2.2

2.0

1.8

2.6

2.6

2.0

1.8

 1.8

*4.3

3.9

2.8

2.Z

2.2

Z.O

6.1

5.4

3.9

3.1

2.8

92.9

3.00

0.259

0.30

Aug.

2.6

2.6

2.4 

Z.4

7.2

7.6

772

3.3 

2.9

2.8

2.4

2.4

2.2

2.2

Z.O

2.0

1.8

1.6 TTe

2.2

4.8

*3.9

2.8

2.4

2.2

2.0

2.0

2.0

2.0

1.6

1* 6

85.7

2.76

0.238

0.27

Sept.

2.0

2.0

1.6

its"

4.0

8.1

2^6

2.2

z.z

2.2

Z.O

Z.O

1.8

2.0

2.0

2.0

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.5

 Z.O

2.2

2.0

1.8

66.2

2.21

0.191

O.Z1

In. 10. ZO

Water year 1955-56: Max 139 Mln 1.5 Mean 8.25 Cfsm 0.711 In. 9.69

Peak discharge (base. 260 cfs). Mar. 14 (5 p.m.) 264 cfa (5.35 ft). 

* Discharge measurement made on this day.
296 CHOPTANK RIVER BASIN

Choptank River near Greensboro, Md.

Location. Lat 38°59'50", long 75°47'10", on left bank at highway bridge, 0.1 mile upstream from Gravelly Branch and 2.0 miles northeast of Greensboro, Caroline County.

Drainage area. 113 sq mi.

Records available. January 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 5 ft (from topographic map).

Average discharge. 8 years, 122 cfs.

Extremes. Maximum discharge during year, 989 cfs Mar. 15 (gage height, 6.78 ft); minimum, 

12 cfs Sept. 27.

1948-56: Maximum discharge, 3,640 cfs Dec. 22, 1951 (gage height, 9.99 ft); minimum, 6.5 cfs July 29, 30, 1949 (gage height, 1.81 ft).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Some regulation at low flow by mill above station.

Ratingig table, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.9 

2.1 

2.3

3.O

5.0 

7.0

225

575

1.07O

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

32

32

30

31

31

32

31

34

38

32

32

32

30

31

41

42

36

35

38

35

32

25

24

23

25

29

29

*32

31

35

40

1,000

32.3

0.286

0.33

Nov.

36

32

31

34

31

30

29

30

30

29

47

52

44

40

44

54

40

35

40

52

62

46

46

41

40

42

42

38

38

40

1,195

39.8

0.352

0.39

Dec.

38

35

38

38

35

35

35

32

36

il

40

32

34

b34

32

32

b31

31

29

28

26

25

24

28

30

28

25

25

25

25

973

31.4

0.278

0.32

Jan.

24

23

*24

24

25

31

31

30

b27

32

54

78

75

92

75

68

54

50

58

48

60

47

60

48

b38

36

b34

b33

34

52

85

1,450

46.8

0.414

0.48

Feb.

66

70

103

132

168

*209

347

448

275

207

152

203

249

189

146

132

120

148

175

213

154

135

120

105

103

135

162

120

120

4,906

169

1.50

1.61

Mar.

107

75

95

103

99

72

64

95

146

148

132

107

101

230

*793

750

584

588

437

335

310

264

330

219

187

178

125

128

122

132

132

7,188

232

2.05

2.37

Apr.

115

105

99

122

130

109

140

290

532

340

a!60

a!40

3120

allo

alOO

allo

142

158

111

92

109

92

85

70

82

82

90

72

82

78

4,067

136

1.20

1.34

May

52

60

78

80

64

62

56

58

*54

46

48

56

47

70

60

40

35

34

38

40

35

35

44

47

40

34

41

88

75

36

40

1,593

51.4

0.455

0.52

June

41

56

111

~6T 122

46

38

38

35

40

47

41

34

35

35

25

23

24

23

32

28

29

24

31

29

24

21

21

23

25

1,163

38.8

0.343

0.38

July

23

21

22

21

21

21

22

20

25

24

25

21

19

18

19

18

23

18

*16

16

40

32

22

28

24

18

42

62

68

47

34

830

26.8

0.237

0.27

Aug.

31

26

25

26

29

54

46

41

36

31

31

30

21

25

22

19

18

17

17

15

30

34

26

25

19

21

18

23

18

17

16

807

26.0

0.230

0.27

Sept.

14

15

13

13

19

16

31

32

23

17

22

19

17

16

a!5

a!7

a20

a25

a21

a!8

a!6

a!5

a!5

a!5

*24

14

13

20

18

17

550

18.3

0.162

0.18

Calendar year 1955: Max 1,10O Mln 9.2 Mean 78.4 Cfsm O.694 Inr 9.43

Water year 1955-56: Max 793 Mln 13 Mean 70.3 Cfsm O.622 In. 8.46

Peak discharge (base. 1.500 cfs). No peak above base. 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range In stage, 

and records for nearby stations.

b Stage-discharge relation affected by Ice.
CHOPTANK RIVER BASIN 297

Tuckahoe Creek near Ruthsburg, Md.

Location.--Lat 38°58'00", long 75°56'35", on dovmstream side of right abutment of highway 

bridge, 0.1 mile dovmstream from Blockston Branch, 2.6 miles dovmstream from confluence 

of German Branch and Mason Branch, 2.6 miles south of Ruthsburg, Queen Annes County, 

and 3.4 miles north of Queen Anne.

Drainage area. 85.2 sq mi.

Records available . March 1951 to September 1956 (discontinued).

Gage.--Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 5 years, 94.3 cfs.

Extremes.--Maximum discharge during year, 473 cfs Mar. 15 (gage height, 3.96 ft); minimum, 

13 cfs Sept. 15; minimum gage height, 0.23 ft Aug. 20.

1951-56: Maximum discharge, 1,620 cfs Aug. 13, 1955 (gage height, 5.87 ft); minimum, that of Sept. 15, 1955; minimum gage height, 0.18 ft Aug. 4. 5, Oct. 13, 14, 1954.

Remarks. Records good.

Rating table, water year 1955-56 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1 to Dec. 27)

1.0 

1.5 75

2.0 

2.5 

3.0 

4.0

113

170

250

485

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tbtal

Mean

Cfsm

In.

Oct.

34

32

31

30

29

29

29

38

48

37

32

29

28

30

58

65

62

43

36

34

32

30

30

30

30

31

31

30

30

58 *2i

1,159

37.4

0.439

0.51

Nov.

50

40

37

37

36

36

36

37

36

40

88

87

67

56

49

46

44

40

45

68

63

55

49

46

43

41

39

38

36

5±

1,419

47.3

0.555

0.62

Dec.

*34

34

37

38

36

34

32

31

32

40

35

31

30

30

30

30

28

28

28

27

28

28

28

28

29

30

26

26

27

26

947

30.5

0.358

0.41

Jan.

26

26

*28

28

28

28

28

26

25

41

67

88

82

67

55

49

48

47

44

44

42

40

41

38

36

35

32

32

33

51

73

1,328

42.8

0.502

0.58

Feb.

62

58

93

100

140

*119

268

198

181

140

115

132

120

115

102

89

83

94

110

107

101

86

75

70

80

95

90

85

75

3,183

110

1.29

1.39

Mar.

67

65

66

66

62

*60

58

69

102

92

86

76

78

187

406

374

*392

316

268

215

209

205

193

177

152

132

116

104

99

102

98

4,692

151

1.77

2.05

Apr.

95

87

87

99

98

93

118

225

210

*204

147

114

98

88

83

92

98

90

83

75

71

67

65

63

65

64

66

63

60

57.

2,925

97.5

1.14

1.28

May

52

51

59

61

55

50

58

60 *51

47

46

44

47

49

41

37

35

34

33

35

32

30

46

51

35

31

49

78

54

39

35

1,425

46.0

0.540

0.62

June

32

48

74

70

55

41

35

30

28

30

73

62

32

27

24

23

23

23

23

22

24

30

25

34

27

22

22

23

21

20

1,023

34.1

0.400

0.45

July

19

19

19

18

20

21

21

20

26

24

20

19

18

18

11

17

21

*20

19

18

61

4T

34

26

23

21

44

58

60

30

23

815

26.3

0.309

0.36

Aug.

21

20

19

18

25

36

28

22

20

18

18

17

17

17

16

16

15

15

14

15

64

49

28

21

19

18

18

17

16

16

16

669

21.6

0.254

0.29

Sept.

15

15

ii14

14

20

44

22

18

16

15

15

14

14

14

14

15

19

16

15

14

14

14

14

15

14

14

*18

17

17

494

16.5

0.194

0.22

Calendar year 1955: Max 1,260 Mln 14 Mean 61.3 Cfsm 0.719 In. 9.77

Water year 1955-56: Max 406 Mln 14 Mean 54.9 Cfsm 0.644 In. 8.78

Peak discharge (base, 750 cfa). No peak above baae. 

* Discharge measurement made on this day.
298 CHOPTAM RIVER BASIN

Beaverdam Branch at Matthews, Md.

Location. Lat 38°48'40", long 75°58'15", on left bank 50 ft upstream from bridge on State

 Highway 328, 1 mile west of Matthews, Talbot County, 1.2 miles upstream from mouth, and 

6 miles northeast of Easton.

Drainage area. 5.85 sq ml.

Records available. July 1950 to September 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage Is 10 ft (from topographic map).

Average discharge. 6 years, 6.12 cfs.

Extremes. Maximum discharge during year, 109 cfs Mar. 14 (gage height, 2.60 ft); minimum,

 O3~cfs Sept. 1, 2, 3 (gage height, 1.03 ft).

1950-56: Maximum discharge, 476 cfs Aug. 12, 1955 (gage height, 5.19 ft); no flow 

for part of each day Aug. 14-16, Sept. 8, 9, 1950, Sept. 8-11, 13, 14, 1951.

Remarks. Records good.

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

1.0

1.1

1.2

1.3

1.4

.32 

1.1 

2.4 

5.0

1.5

1.6

2.0

2.1

9.0

15

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2.1

1.4

1.2

1.0

.95

1.1

1.0

3.0

2.8

1.6

1.1

1.0

.95

1.3

6.6

4.0

2.8

2.1

1.8

1.6

1.4

1.3

1.3

1.2

1.3

1.3

1.3

1.2

1.3

5.0 

*3.2

59.20

1.91

0.326

0.38

Nov.

2.0

1.8

1.7

1.8

1.7

1.7

1.7

2.0

2.0

3.2

22

~S. 4

3.1

2.4

2.1

2.1

1.8

1.6

575

8.6

4.0

3.0

2.4

2.3

2.0

2.0

1.8

2.0

1.7

1.6

97.1

3.24

0.554

0.62

Dec.

»1.4

l!4

2.0

2.0

2.0

1.6

1.6

1.6

2.4

4.0

2.4

2.1

2.0

1.8

2.1

1.8

1.6

1.7

2.0

1.7

1.3

1.4

1.6

2.0

2.1

2.1

1.6

1.2

ITS

1.7 

1.6

57.0

1.84

0.315

0.36

Jan.

1.3

T75

 1.7

2.0

2.0

1.8

1.8

1.6

1.6

7.4

~8.2 11

5.0

3,5

3,0

2.8

3.5

3,5

3.2

4.0

4.0

3.2

4.0

3.0

2.4

2.3

2.1

2.0

2.8

5.0 

3.8

104.8

3.38

0.578

0.67

Feb.

2.3

475

10

14

11

20

37

6^2

5.0

8.0

9.0

5.8

4.6

4.4

3.8

3.8

7.0

5.0

4.0

3.5

3.0

2.6

2.8

8.6

7.4

4.4

3.8

2.8

212.4

7.32

1.25

1.35

Mar.

375- 2.6

4.6

7.0

4.4

3.8

3.5

15

9.0

5.0

4.6

4.0

7.4

65

3T

22

*25

11

16

13

11

7.8

7.0

6.6

5.8

5.4

5.4

4.4

4.6

5.4 

4.4

352.2

10.5

1.79

2.07

Apr.

3.8

3.8

6.6

7.4

4.6

5.4

15

25-7.8

5.8

5.0

4.4

3.8

3.5

3.8

 6.6

4.6

3.8

3.2

3.2

2.8

2.6

2.4

2.4

2.8

3.0

2.8

2.4

2.1

1.8

152.2

5.07

0.867

0.97

May

1.6

1.8

4.4

3.5

3.5

2.4

2.6

2.1

 1.7

1.7

1.6

1.4

1.3

1.1

.86

.86

.77

.86

.86

3.0

1.3

1.0

1.3

1.2

.86

.68

8 5

775

2.0

1.3 

1.1

64.65

2.09

0.357

0,41

June

0.86

7.8 476"

2.0

1.2

.95

,86

.68

.60

.77

.86

.60

.45

.38

.32

.32

.27

*.27

.22

72T

.80

.95

.52

2.6

.77

.38

.32

.27

.22

.22

31.28

1.04

0.178

0.20

July

0.22

TZ5

.22

.22

.32

.38

.38

2.1

18

9.4

1.3

.77

.52

.38

.32

.38

1.3

 1.6

.77

.65

27

3.1

9.2

3.2

1.6

.95

.77

.77

.60

.52 

.38

87.54

2.82

0.482

0.56

Aug.

0.32

.32

.32

.32

.78

.77

.60

.52

.38

.32

.27

.27

.27

.22

.18

.18

.14

.14

.14

.28

4.4

T95

.45

.27

.18

.14

.27

.14

.10

Tiff

.10

13.84

0.446

0.076

0.09

Sept.

0.07

TOT

.10

.10

.10

.19

1. 1

.45

.22

.14

.14

.14

.14

.10

.38

.22

.32

.32

.22

.18

.14

.14

.14

.27

*.22

.22

.38

.32

.32

.32

7.17

0.239

0.041

0.05

Calendar year 1955: Max 237 Mln 0.10 Mean 5.09 Cfsm 0.870 In. 11.81

Water year 1955-56: Max 65 Min 0.07 Mean 3.31 Cfsm 0.566 In. 7.73

Peak discharge (base. 100 efs). Mar. 14 (5 p.m.) 109 cfs (2.60 ft). » Dls ' '- - -

Lscharge measurement made on this day.
WYE RIVER BASIN 299

Sallie Harris Creek near Carmichael, Hd.

Location. Lat 38e 57'55", long 76 e 06'30 n , on left bank 30 ft upstream from bridge on U. S. 

Highway 50, 2 miles northeast of Carmichael, Queen Annes County, 2.2 miles northwest of 

Wye Mills, and 2.4 miles upstream from mouth.

Drainage area. 8.09 sq mi.

Records available. June 1951 to September 1956 (discontinued).

Qage. water-stage recorder. Altitude of gage is 15 ft (from topographic map).

Average discharge. 5 years, 8.22 cfs.

Extremes. Maximum discharge during year, 91 cfs Mar. 14 (gage he'ight, 3.27 ft); minimum, 

1.6 cfs July 15, Sept. 23.

1951-56: Maximum discharge, 1,030 cfs Aug. 13, 1955 (gage height, 7.02 ft), from 

rating curve extended above 370 cfs by logarithmic plotting; minimum, 1.3 cfs Sept. 29, 

1954; minimum gage height, 0.38 ft Aug. 1, 4, 1954, July 23, 1955.

Remarks. Records poor.

Rating table, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Oct. 18 to Feb. 6, July 18-20}

0.5 

.7

1.0 

1.3

1.7 

2.6 

4,9 

8.3

1.6 

2.0 

2.5 

3.0

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2.6 

2.6

2.5

g.4

27T

2.6

2.6

4.1 

4.3

3.0

2.7

2.7

Z.I

3.1

21

30

IT

4.3

3.3

3.0

3.0

3.0

3.0

3.0

3.0

3,1

3.1

3.1

3.1

8.8

*4.7

150.8

4.86

0.601

0.69

Nov.

3.3

3.2

3.1

372

3.6

4.0

4.4

4.7 

4.6

7.9

30

TS

5.6

5.1

5.3

5.3

5.3

4.9

13

23

12

7.0

5.6

4.8

4.3

3.9

3.8

3.7

3.4

3.3

203.3

6.78

0.838

0.93

Dec.

*3.3 

3.4

3.4

3.3

3.1

3.1

3.1

3.0 

472

6.8

4.8

4.1

3.8

3.6

3.8

3.6

3.4

3.6

3.9

3.6

3.2

3.1

3.4

3.9

4.3

4.1

3.5

3.1

3.1

3.4

3.4

113.4

3.66

0.452

0.52

Jan.

3.1 

3.1

*3.4

3.6

3.4

3.3

3.1

!7§

7.6

16

24

IT

6.0

4.4

3.9

4.3

4.1

3.8

3.8

3.8

3.7

3.8

3.5

3.1

3.1

3.0

3.0

3.5

7.7

7.6

163.7

5.28

0.653

0.75

Feb.

ffl

18

16

24

*19

53S3" 

14

10

12

19

12

7.9

6.8

6.2

6.4

13

10

6.4

5.5

5.0

4.6

4.7

7.6

7.5

5.4

5.0

4.4

.._____

336.0

11.6

1.43

1.54

Mar.

4.1 

4.4

4.4

4.4

4.1

 4.0 470"

10 

14

5.6

5.1

5.1

8.1

50

55

23

36

17

14

14

17

14

10

8.3

6.7

6.0

5.7

*5.4

5.9

6.4

5.5

372.2

12.0

1.48

1.71

Apr.

5.0 

4.9

6.8

7.4

5.4

5.3

17

31

T2

8.0

6.8

6.1

5.7

5.4

5.5

10

7.8

5.9

5.3

5.1

4.8

4.6

4.4

4.5

4.6

5.0

4.7

4.4

4.2

4.0

211.6

7.05

0.871

0.97

May

3.8 

3.9

5.0

4.5

3.9

3.8

4.7

4.0 

*3.5

3.5

3.4

3.4

3.4

3.1

2.9

2.9

2.8 279"

2.8

2.9

2.8

2.8

6.2

4.8

3.1

2.9

10

all

H.O

a3.0

a2.8

124.5

4.02

0.497

0.57

June

a3.0 

all

17.2

a3.3

a2.5

a2.4

2.2

2.1 

2.1

2.3

2.4

2.1

1.9

1.9

1.9

1.8

TTff

 1.8

1.8

1.9

2.3

2.4

2.0

3.4

2.2

1.9

2.7

2.2

1.9

1.8

80.2

2.67

0.330

0.37

July

1.8 

1.8

1.8

1.8

2.0

2.0

1.9

2.0 

2.8

2.2

1.9

1.7

ITT

1.7

1.7

1.8

2.0

*5.0

3.0

3.1

38~?.9

6.1

3.3

2.8

2.4

3.1

4.4

7.2

2.9

2.4

121.2

3.91

0.483

0.56

Aug.

2.2 

2.2

2.1

2.1

2.4

2.7

2.4

2.3 

2.1

2.0

2.0

2.0

2.0

2.0

2.0

i437?

1.9

1.9

2.6

9.5

375

*2.4

2.2

2.1

2.0

2.3

2.1

2.1

2.0

2.0

74.4

2.40

0.297

0.34

Sept.

2.1 

2.0

1.9

1.9

1.9

11

-?. 6

2.4

2.1

2.0

1.9

1.9

1.9

1.9

2.0

2.0

3.1

2.4

1.8

1.7

1.7

1.7

1.7

1.8

1.7

1.7

2.0

*2.1

2.0

1.9

75.8

2.53

0.313

0.35

Calendar year 1955: Max 428 Mln 1.5 Mean 6.35 Cfsm 0.785 In. 10.64

Water year 1955-56 : Max 53 Mln 1.7 Mean 5.54 Cfsm 0.685 In. 9.30

Peak discharge (base, ISO cfs). No peak above base. 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage, weather records, 

and records for nearby stations.
300 CHESTER RIVER BASIN

Unicorn Branch near Millington, Md.

Location. Lat 39°15 | 00", long 75°51'40", on right bank 50 ft upstream from bridge on State

 Highway 313, 0.9 mile upstream from mouth, and 1.4 miles southwest of Millington, Kent 

County.

Drainage area. 22.3 sq mi.

Records available. January 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 15 ft (from topographic map).

Average discharge. 8 years, 22.6 cfs.

Extremes. Maximum discharge during year, 167 cfs Mar. 15 (gage height, 3.30 ft); minimum,

 6.0 c'fs Sept. 3, 4 (gage height, 1.86 ft); minimum daily, 6.4 cfs many days in July, 

September.

1948-56: Maximum discharge, 383 cfs Apr. 28, 1952 (gage height, 4.41 ft); minimum, 

1.3 cfB Sept. 15, 1949 (gage height, 1.70 ft); minimum daily, 4.8 cfs Aug. 6, 1955.

Remarks.--Records good. Occasional regulation at low flow by fish hatchery above station. 

Revisions (water years). WSP 1382: 1952(P).

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

1.8

1.9

2.0

2.1

4.0

7.8

14

24

2.3 

2.5 

3.0 

3.2

128

153

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

11

11

11

11

11

11

11

12

13

12

11

11

11

11

15

16

13

12

11

11

10

10

11

10

10

9.5

9.5

9.5

8.9

11

347.4

11.2

0.502

0.58

Nov.

11

10

9.5

8.9 879"

9.5

9.5

9.5

9.5

10

15

15

13

11

10

10

9.5

8.9

10

12

12

11

11

10

10

9.5

9.5

*9.5

8.9

8.9

311.0

10.4

0.466

0.52

Dec.

8.9

8.9

9.5

9.5 

9.5

8.9

8.9

9.5

9.5

10

9.5

9.5

9.5

8.9

8.9

8.9

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.4

8.9

8.9

8.4

8.4

7.8

7TT O. 4

8.4

274.7

8.86

0.397

0.46

Jan.

7.8

TTff

7.8

8.4 

8.4

8.4

8.4

7.8

7.8

*9.5

13

18

17

13

11

11

11

11

11

11

10

10

10

9.5

9.5

8.9

8.4

8.4

8.9

12

323.7

10.4

0.466

0.54

Feb.

13

25

23 

28

28

44

41

27

22

22

27

25

21

18

17

18

27

30

24

21

17

15

14

18

22

20

17

15

655

22.6

1.01

1.09

Mar.

15

14

]5

14 

*13

12

13

18

29

24

20

18

22

50

145

78

89

60

40

37

40

40

57

53

29

28

25

23

23

27

25

1,054

34.0

1.52

1.76

Apr.

23

21

*22

27 

25

25

55

72

W

56

29

25

23

22

21

27

27

23

21

20

19

18

18

18

18

19

20

19

17

15

761

25.4

1.14

1.27

May

14

15

17

17 

16

15

22

21

17

15

14

15

16

15

15

12

12

11

11

11

11

11

12

11

10

10

14

17

15

11

12

429

13.8

0.619

0.72

June

13

19

28

I? 

15

12

11

*10

9.5

10

9.5

8.9

8.4

8.4

8.4

8.4

8.9

9.5

9.5

8.9

11

15

11

15

9.5

8.4

7.3

778

7.3

7.3

350.9

11.0

0.493

0.55

July

7.3

6*1

874

10 

8.9

8.4

8.4

8.4

11

12

10

8.9

7.8

7.3

6.8

6.8

6.8

6.8

6.8

*6.4

24

TS

10

9.5

9.5

8.4

7.8

15

15

10

8.9

295.7

9.47

0.425

0.49

Aug.

8.4

7.8

7.8

7.3 

18

18

11

9.5

8.4

8.4

7.8

8.9

8.6

9.5

8.4

7.8

7.3

7.5

6.8

7.8

13" 20

10

8.4

8.4

7.8

7.8

7.8

7.3

7.3

7.5

289.9

9.55

0.419

0.48

Sept.

7.5

7.5

6.8

ftf

6.9

8.4

7.8

6.8

6.8

6.8

6.4

6.4

6.4

6.4

6.8

7.2

8.4

7.5

6.8

6.4

6.4

6.4

6.8

6.8

6.4

*6.4

6.8

6.8

6.8

205.8

6.86

0.508

0.54

Calendar year 1955: Max 257 Mln 4.8 Mean 14.3 Cfsm 0.641 In. 8.67

Water year 1955-56: Max 143 Mln 6.4 Mean 14.4 Cfsm 0.646 In. 8.80

Peak discharge (base, 180 efs). No peak above base, 

* Discharge measurement made on this day.
CHESTER RIVER BASIN 301

Morgan Creek near Kennedyvllle, Md.

Location. Lat 39°16 I 50", long 76 e 00'55", on right bank 200 ft upstream from highway 

bridge, 2 miles southwest of Kennedyvllle, Kent County, and 4j miles upstream from 

mouth.

Drainage area. 10.5 sq ml.

Records available. May 1951 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 15 ft (from topographic map).

Average discharge. 5 years, 9.73 cfs.

Extremes.--Maximum discharge during year, 258 cfs July 21 (gage height, 5.23 ft); minimum, 

2.2 cfs Jan. 8 (gage height, 1.25 ft), result of freezeup.

1951-56: Maximum discharge, 463 cfs Aug. 13, 1955 (gage height, 6.87 ft); minimum, 

1.8 cfs July 23, 24, Aug. 6, 1955 (gage height, 1.24 ft).

Remarks. Records good.

Revisions (water years) . WSP 1332: 1952, 1953(P).

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

1.25

1.3

1.4

1.5 

1.7 

2.0

2.0

2.8

5.0

9.5

20

30

2.5 

3.0 

3.5 

4.0 

4.3

42

63

89

125

153

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

4.2

4.0

4.0

4.0

4.8

4.5

6.0

6.5

4.5

4.0

4.0

4.0

4.0

7.0

5.0

4.5

4.2

4.0

4.0

4.0

3.8 378-

4.0

 4.0

3.8

3.8

3.8

4.0

11

TT

148.2

4.78

0.455

0.52

Nov.

5.0

4.2

4.2

3.8

3.8

4.0

4.2

4.2

5.0

~6-.0 10

4.8

4.5

4.5

4.5

4.2

3.8

5.2

7.0

5.0

4.5

4.5

4.5

4.2

4.2

4.2

4.2

3.8

5.6

139.6

4.65

0.443

0.49

Dec.

3.8

4.0

4.8

4.5

4.0

4.0

4.2

4.8

5.0

4.0

3.8

3.8

3.6

4.2

3.8

3.4

3.6

4.0

3.6

3.2

371

4.0

4.5

5.3

4.5

3.8

3.2

3.2

4.0

3.6

124.4

4.01

0.382

0.44

Jan.

3.4

3.4

3.8

4.2

 4.0

3.8

3.2

37Z

6.0

8.0

8.5

5.6

4.5

4.0

3.8

4.2

4.0

3.8

4.0

4.0

3.8

4.0

3.6

3.4

3.6

3.2

S.2

4.2

11

15

143.6

4.63

0.441

0.51

Feb.

4.5

*11

14

10

13

14

34

IT

6.0

5.3

6.0

7.0

5.0

4.5

5.0

5.3

6.0

17

11

5.6

5.0

4.2

472

4.2

7.5

5.3

4.8

5.0

4.2

__ _ ___.

242.6

8.37

0.797

0.86

Mar.

4.2

4.8

4.8

4.5 

4.0

4.0

4.2

8.0

6.5

4.5

4.8

5.0

7.5

54

 45

18

29

13

9.5

9.5

9.5

9.5

9.5

8.5

6.5

6.5

6.0

5.6

7.5

8.0

6.0

327.9

10.6

1.01

1.16

Apr.

5.3

5.3

8.0

9 e'.o5

6.5

15

18 ""S.S

6.5

6.0

5.6

5.3

5.3

5.6

11

7.0

5.6

5.3

5.3

5.3

5.3

5.3

5.0

5.3

6.5

6.0

5.3

5.0

4.6

205.4

6.85

0.652

0.73

May

4.2

5.3

7.5

B75

5.3

5.0

*6.0

4.8

4.2

4.2

4.5

4.5

6.5

4.2

3.8

3.6

375

4.0

4.0

4.0

3.8

3.8

6.0

4.0

3.6

3.6

7.3

7.0

4.0

3.8

3.8

145.7

4.70

0.448

0.52

June

4.0

9.7

875

4.2 

3.8

3.6

3.4

3.2

3.2

3.6

3.6

3.2

3.0

2.8

275

3.0

3.0

3.4

3.4

3.2

4.0

4.2

3.4

7.6

4.0

3.4

3.6

4.0

3.6

3.4

119.3

3.98

0.379

0.42

July

3.2

3.2

16

9 5 

7°. 5

5.3

4.5

4.0

8.0

7.0

4.0

3.4

3.2

3.0

2.8

2.8

2.8

2.8

*2.8

2.8

~SS 145

8.0

4.8

4.5

3.6

3.2

16

33

6.0

3*8

362.5

11.7

1.11

1.28

Aug.

3.4

3.2

3.2

**

*19

5.3

4.0

3.6

3.2

3.2

4.8

5.6

23

11

4.2

3.8

3.6

3.4

14

32 IS

4.2

3.4

3.2

3.0

3.0

3.0

3.0

3.0

3.0

215.3

6.95

0.662

0.76

Sept.

3.0

2.6

H2.4

10

~4.Z 18

3.0

2.8

2.8

2.8

2.8

2.8

2.8

3.2

3.2

3.2

2.8

3.2

2.8

2.8

3.0

3.2

3.4

3.0

3.4

4.0

3.6

3.6

113.2

3.77

0.359

0.40

Calendar year 1955 : Max 299 Mln 2.0 Mean 6.28 Cfsm 0.598 In. 8.11

Water year 1955-56 : Max 145 Mln 2.4 Mean 6.25 Cfsm 0.595 In. 8.09

Peak discharge (base. 200 efs). July 21 (9 a.m.) 258 cfs (5.23 ft). 

* Discharge measurement made on this day.
302 CHESTER RIVER BASIN

Southeast Creek at Church Hill, Md.

Location.--Lat 39°07'57", long 75°58'51", on right bank 10 ft upstream from culvert on 

 private road, 600 ft downstream from small tributary, 0.7 mile south of Church Hill, 

Queen Annes County, and 5^ miles upstream from mouth.

Drainage area. 12.5 sq mi.

Records available.--June 1951 to September 1956 (discontinued).

Cage. Water-stage recorder. Altitude of gage is 20 ft (from topographic map).

Average discharge. 5 years, 12.6 cfs.

Extremes.--Maximum discharge during year, 253 cfs Mar. 14 (gage height, 5.23 ft), from 

rating curve extended above 66 cfs as explained below; minimum, 1.9 cfs Sept. 20, 21, 

23, 24 (gage height, 1.26 ft).

1951-56: Maximum discharge, 990 cfs Aug. 13, 1955 (gage height, 8.34 ft), from 

rating curve extended above 66 cfs on basis of computation of flow through culverts and 

over road at gage heights 4.80, 6.32, 6.36, 7.19 and 7.91 ft; minimum, 1.3 cfs July 23, 

1955; minimum gage height, that of Sept. 20, 21, 23, 24, 1956.

Remarks. Records good except those for periods of ice effect or shifting control, which 

are fair.

Rating table, water year 1955-56, except periods of Ice effect or shifting 

control (gage height, in feet, and discharge, in cubic feet per second)

1.2

1.3 

1.5

1.7

1.4 

2.3 

5.0 

9.5

2.0 

3.0 

4.0 

4.3

19

64

127

153

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

5.0

4.6

4,4

4.2

4TT

4.8

4.4

9.3

6.6

4.8

4.6

4.4

4.4

4.8

12

24

T.O

5.4

4.7

4.6

4.4

4.4

4.4

4.6

4.6

4.6

4.6

4.6

4.7

12

6.0

188.3

6.O7

0.486

O.56

Nov.

4.8

4.8

4.8

4.8

5.0

5.0

5.2

5.6 

5.2

6.8

24

T.6

5.4

5.0

4.8

5.0

4.6

4.6

8.7

12

6.8

6.0

5.8

5.4

5.2

5.4

5.3

5.4

4.8

5.4

188.2

6.27

0.5O2

0.56

Dec.

5.6

6.0

7.4

6.2

5.8

5.6

5.2

5.4

6.8

7.8

5.8

5.2

5.0

5.0

5.4

4.8

b4.7

4.8

5.0

b4.7

b4.2

4.2

4.8

5.2

5.8

5.0

b4.4

b4.O

471

4.7

b4.1

162.7

5.25

0.420

0.48

Jan.

b4.1

TTf

5.0

4.8

*4.7

4.6

b4.1 

b4.6

11

18

To" 20

7.O

5.8

5.6

6.6

6.0

5.6

5.8

5.6

5.4

5.6

b5.0

b4.7

4.7

b4.2

b4.1

6.2

15

10

212.5

6.85

O.548

0.63

Feb.

b6.O

*17

18

22

16

43

54

IT 

10

8.8

15

18

10

8.8

8.8

8.0

11

26

13

9.8

8.2

7.2

7.2

7.2

15

13

9.0

8.5

7.2

419.7

14.5

1.16

1.25

Mar.

7.2

575

8.8

7.8

*7.2

7.2

8.0

31 

16

9.8

9.5

9.0

17

~4T 148

50

46

21

19

25

31

26

18

16

13

13

12

11

*14

15

12

681.0

22.0

1.76

2.03

Apr.

11

11

19

16

12

13

43

§

14

13

12

11

11

12

23

15

12

10

10

9.5

9.2

9.0

9.5

9.5

12

1O

9.2

8.5

8 2

434.6

14.5

1.16

1.29

May

7.2

9.8

12

9.8

7.8

7.2

*10

8.0 

7.2

7.0

7.0

7.0

13

7.5

6.4

6.0

5.6

5.8

5.4

5.8

5.2

5.2

7.2

6.2

5.4

5.0

1912~

6.4

6.O

8.3

241.4

7.79

0.623

0.72

June

9.3

22

14

7.5

6.4

5.8

5.8

*5.6 

6.O

6.0

25"6.6

5.4

5.0

4.8

4.7

4.2

4.6

4.6

4.4

6.O

5.4

4.6

5.8

4.7

4.4

4.8

4.7

4.0

3.6

205.7

6.86

0.549

0.61

July

3.4

3.1

3.O376-

3.6

3.5

3.5

3.5

5.8

4.1

3.3

3.1

3.1

3.0

3.0

3.2

3.5

3.3

*3.1

3.3

33

4.4

4.1

5.1

4.1

3.5

4.4

5.8

4.4

3.6

3.5

144.3

4.65

0.372

0.43

Aug.

3.6

3.6

3.5

3.4

14

4.8

4.4

3.8 

3.5

3.5

3.4

3.1

3.3

3.4

3.4

3.3

3.3

3.0

2.8 14"

5O

5.8

4.1

3.6

3.3

3.1

3.3

3.1

3.1

3.1

3.0

176.6

5.70

0.456

0.53

Sept.

2.7

2.5

2.5

2.5

2.9

3.8

4.O

2.~5

2.5

2.7

2.4

2,4

2.3

2.4

2.5

2.5

2.5

2.2

2.1

2.0

27T

2.1

2.3

2.3

*2.2

2.4

2.9

2.7

g 5

76.4

2.55

0.204

0.23

Calendar year 1955: Max 51O Mln 1.7 Mean 8.64 Cfsm O.691 In. 9.38

Water year 1955-56: Max 148 Min 2.0 Mean 8.56 Cfsm O.685 In. 9.32

Peak discharge (base. 250 cfs). Mar. 14 (2:20 p.m.) 253 cfs (5.23 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. Shifting-control method used Oct. 25 to Nov. 10, Nov. 18 to Dec. 3, Feb. 3-5, Apr. 15 to 

May 7.
SASSAFRAS RIVER BASIN 303

Jacobs Creek near Sassafras, Md.

Location. Lat 39°21'50", long 75°49'13", on upstream right wing wall of bridge on State

 Highway 290, 1.2 miles southwest of Sassafras, Kent County, and 1.4 miles upstream from 

mouth.

Drainage area. 5.39 sq mi.

Records available.--June 1951 to September 1956 (discontinued).

Gage . Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 5 years, 5.00 cfs.

Extremes. Maximum discharge during year, 179 cfs Aug. 13 (gage height, 4.93 ft), from

 rating curve extended above 7.0 cfs on basis of shape of former rating curve defined 

to 73 cfs; minimum, 2.1 cfs Dec. 21, 22, 28, 29, Jan. 1, 25, 27, 28, Feb. 24.

1951-56: Maximum discharge, 229 cfs Aug. 13, 1955 (gage height, 5.59 ft), from 

rating curve extended above 73 cfs by logarithmic plotting; minimum, 1.2 cfs Aug. 5, 

1955.

Remarks. Records poor.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

2.5

2.5

2.5

2.5

2.5

2.6

2.5

2.8

2.5

2.5

2.4

274

2.4

2.5

5.1

2.5

2.5

2.5

2.5

2.4

2.5

2.4

2.4

2.7

2.6

2.5

2.5

2.5

2.5

2.9

*2.6

78.7

2.54

0.471

0.54

Nov.

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.8

2.8

2.5

2.5

2.5

2.5

2.5

2,4

2.4

2.7

2.6

2.5

2.5

2.5

2.5

2.5

2.5

2.5

*2.5

2.5

2.5

75.7

2.52

0.468

0.52

.Dec.

2.5

2.6

2.7

277

2.6

2.6

2.6

2.6

2.7

2.7

2.6

2.6

2.6

2.5

2.6

2.5

2.4

2.5

2.5

2.4

2.2

275

2.4

2.5

2.5

2.5

2.4

2.2

2.2

2.4 

2.2

77.2

2.49

0.462

0.53

Jan.

2.2

2.2

2.4

2.4

2.4

2.4

2.4

2.2

2.2

*2.8

3.0

2.6

2.4

2.2

2.2

2.2

2.4

2.2

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2~7T

2.5

4.1

75.6

2.44

0.453

0.52

Feb.

3.2

*4.4

3.5

3.8

3.1

4.1

4.2

5^1

3.6

3.3

3.5

3.6

3.8

3.2

3.2

3.1

3.2

4.8

4.9

3.5

2.8

2.5

2.2

2T?

2.7

2.5

2.5

2.6

2.5

 

97.6

3.37

0.625

0.67

Mar.

2.5

2.6

2.5

2.4

 2TI

2.4

2.5

3.3

2.6

2.5

2.6

2.6

3.1

15

16

10

10

8.2

4.8

5.4

5.6

5.9

5.2

4.5

3.9

3.5

3.5

5.2

*3.5

3.3 

3.2

148.5

4.79

0.889

1.02

Apr.

3.2

3.2

3.6

3.5

5.5

5.6

6.6

10"7.6

4.8

4.0

5.6

3.5

3.3

3.5

4.1

4.0

3.6

3.3

3.2

3.1

5.1

3.1

3.1

3.0

3.1

2.8

2.8

2.8

2.7

115.1

3.84

0.712

0.79

May

2.6

575

2.8

2.9

2.7

2.6

5.5

2.8

5.0

2.7

*2.6

2.6

2.7

2.6

2.6

2.6

2.6

2.7

2.7

2.7

2.7

2.7

5.0

3.1

3.0

2.8

3.6

370

2.8

2.8 

3.3

87.6

2.83

0.525

0.60

June

3.1

4.1

3.3

2.8

2.7

2.7

2.7

*2.7

2.8

3.4

4.2

278

2.7

2.6 576-

2.6

2.7

2.7

2.7

2.7

5.2

5.1

2.8

3.3

2.8

2.8

3.3

3.0

2.6

2.6

88.1

2.94

0.545

0.61

July

2.6

2.6

3.5

2.6

4.1

2.6

2.6

3.5

6.2

3.1

2.6

2.6

2.5

275

2.5

2.6

2.6

2.7

*2.6

3.0

21

sli

3.6

5.5

3.2

4.0

6.7

3.2

2.8 

2.8

116.4

3.75

0.696

0.80

Aug.

3.0

3.0

2.8

2.8

21

4.8

4.6

4.0

3.8

3.6

2.8

2.8

21

24

T.3

3.3

3.0

2.6

2.5

T7T

11

*6.4

4.0

3.8

3.3

3.1

3.0

2.6

2.6

2.8

2.8

169.2

5.46

1.01

1.17

Sept.

5.1

575

5.2

5.1

5.0

4.6

5.3

3.0

3.0

2.8

2.8

2.8

2.8

2.8

3.2

3.1

5.1

3.0

5.0

3.0

2.8

2.8

2.8

3.2

2.8

*2.6

3.2

5.1

2.8

2.8

93.2

3.11

0.577

0.64

Calendar year 1955: Max 107 Mln 1.5 Mean 3.35 Cfsm 0.622 In. 8.43

Water year 1955-56 : Max 24 Mln 2.1 Mean 3.34 Cfsm 0.620 In. 8.41

Peak discharge (base, 40 cfs). July 21 (3 a.m.) 85 cfs (3.82 fth AUK. 5 (8 a.m.) 98 cfs (3.98

ft); Aug. 13 (10 p.m.) 179 cfs (4.93 ft).

* Discharge measurement made on this day.
304 ELK RIVER BASIN

Big Elk Creek at Elk Mills, Md .

Location. Lat 39°39'26", long 75°49'20", on right bank 100 ft downstream from highway 

bridge at Elk Mills, Cecil County, 3| miles north of Elkton, and 7 miles upstream from 

confluence with Little Elk Creek.

Drainage area. 52.6 sq mi.

Records available . April 1932 to September 1956.

Gage . Water-stage recorder. Datum of gage is 68.5 ft above mean sea level, datum of 1929. 

Prior to May 17, 1946, wire-weight gage and crest-stage indicator at bridge 100 ft upstream at same datum.

Average discharge . 23 years (1932-35, 1936-56), 69.3 cfs.

Extremes . Maximum discharge during year, 1,540 cfs Jan. 30 (gage height, 5.86 ft); minimum, 

8.5 cfs Jan. 8, result of freezeup; minimum daily, 18 cfs Sept. 19.

1932-56: Maximum discharge , 10,600 cfs July 5, 1937 (gage height, 14.5 ft, from 

floodmarks), from r - 

conveyance studies; 

mum gage height obse 

Sept. 23, 24, 1932.

Maximum stage known, about 19 ft in June 1884, from information by local residents.

Revisions . The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

726

756

781

801

851

871

891

951

971

1001

1031

1051

1081

1171

1202

1232

1272

Water 

year

1932

1934

1935

1936

1938

1939

1940

1942

1943

1944

1945

1946

1947

1950

1951

1952

1953

Date

June 15,

Mar . 3 ,

July 9,

Mar. 11,

Oct. 23,

Aug. 19,

Mar. 15,

Aug. 13,

May 12 ,

Sept. 13,

Sept. 18,

July 23,

July 7 ,

Aug . 3 ,

Nov. 25,

Dec. 21,

Nov. 22,

1932

1934

1935

1936

1937

1939

1940

1942

1943

1944

1945

1946

1947

1950

1950

1951

1952

Discharge 

(cfs)

a3, 020

2,620

4,720

b3,200

2,310

2,620

2,700

3,380

2,860

2,380

6,030

7,080

5,220

3,400

2,620

3,280

2,740

Gage height 

(feet)

T8.0

T7.5

t9.8

8.16

7.17

*7.5

7.55

8.36

7.75

t7.20

10.48

11.14

9.64

7.94

7.10

7.78

7.23

t From floodmarks.

* From graph based on gage readings.

a Maximum during period Apr. 10 to Sept. 30; was 

probably not exceeded during year.

b Maximum during period Jan. 15 to Sept. 30; was 

probably exceeded on Jan. 3.

Remarks. Records good except those for periods of ice effect, which are fair, 

diurnal fluctuation caused by mills above station.

Slight

Revisions.--Revised figures of discharge, in cubic feet per second, for the water years 

1932-33, 1935, 1938, and 1943-53 (revised peak discharges only for water years 195S-53), 

superseding those published in WSP 726, 741, 781, 851, 971, 1001, 1031, 1051, 1081, 

1111, 1141, 1171, 1202, 1232, and 1S72, are given herewith:

Date

1932

June 15

1933

Aug. 4

23

24

1935

July 8

9

1937

Nov. 13

1943

May 11

12

July 11

12

13

Oct. 1

2

3

4

Discharge

500

1,550

2,860

1,060

637

1,370

800

866

1,200

500

150

120

73

58

28

24

Date

1943 -Con.

Oct. 5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

1944

Jan. 3

4

Sept. 13

16

Discharge

22

21

23

20

20

20

20

20

20

20

22

35

46

28

22

21

21

797

1,360

736

24

Date

1945

Sept. 18

1946

July 23

1947

July 7

8

1948

Feb. 15

16

17

28

Apr. 1

May 5

7

30

June 19

Nov. 29

Dec. 30

1949

Jan. 5

Discharge

1,610

1,550

895

528

286

203

586

222

412

543

442

252

535

Z64

788

208

Date

1949-Con.

Jan. 6

22

26

28

Mar. 23

July 12

13

Aug. 5

1950

Mar. 21

23

Aug. 3

Sept. 11

Oct. 23

Dec. 8

1951

Jan. 24

Feb. 2

17

21

Mar. 20

July 5

Discharge

390

248

231

481

396

129

495

378

212

619

1,020

224

265

355

203

247

226

390

402

306
ELK RIVER BASIN 305

Big Elk Creek at Elk Mills, Md.--Continued

Revised figures of monthly discharge in cubic feet per second, 1932-33, 1935, 1938, 1943-53

Month Cfs-days Maximum Minimum Mean Per square

mile

Runoff in 

inches

June 1932....................

August 1933 ..................

Water year 1932-33.........

Calendar year 1933.........

July 1935.................... 3,735

Water year 1934-35......... 27,932

Calendar year 1935......... 50,525

November 1937 ................ 2,659

Calendar year 1957 ......... 31,057

Water year 1957-58......... 28,697

May 1943..................... 4,838

July......................... 2,454

Water year 1942-45 ......... 29,427

October 1945................. 1,028

Calendar year 1945 ......... 26,060

January 1944................. 3,561

September.................... 1,537

Water year 1945-44......... 19,424

Calendar year 1944......... 18,846

September 1945............... 3,454

Water year 1944-45......... 25,955

Calendar year 1945......... 28,928

July 1946 .................... 5,278

Water year 1945-46......... 26,254

Calendar year 1946......... 25,656

July 1947 .................... 2,764

Water year 1946-47 ......... 19,693

Calendar year 1947 ......... 19,969

February 1948................ 3,994

April........................ 2,747

May.......................... 4,294

June......................... 2,856

Water year 1947-48......... 27,594

November 1948................ 1,550

December..................... 2,954

Calendar year 1948......... 29,244

January 1949................. 3,768

March........................ 5,260

July......................... 2,092

August....................... 1,598

Water year 1948-49 ......... 26,692

Calendar year 1949......... 24,475

March 1950................... 2,990

August....................... 2,065

September.................... 1,520

Water year 1949-50......... 20,110

October 1950................. 1,447

December..................... 2,255

Calendar year 1950.........

January 1951................. 2,680

February..................... 5,719

March........................ 2,858

July......................... 1,984

Water year 1950-51.........

2,860

2,860

2,860

1,370

1,570

800

1,650

860

1,200

500

1,200

90

1,200

1,550

756

1,550

1,350

1,610

1,610

1,610

1,550

1,550

1,550

895

895

895

867

412

545

535

910

264

788

910

481

396

495

378

788

495

619

1,020

224

1,020

265

355

1,210

624

679

402

506

1,210

21

9.5

21

241

89.7

91.5

120

76.5 

*85.1

88.0

85.0

78.6

156

79.2

80.6

55.2

71.4

115

44.6

55.1

51.5

115

71.1

79.3

106

71.9

64.8

30

22

89.2

54.0

54.7

54

56

18

29

45

158

91.6

159

94.5

74.8

51.7

95.5

79.9

122

105

67.5

45.1

75.1

67.1

50

24

24

23

28

29

23

96.5

66.6

44.0

55.1

46.7

72.1

63.0

86.5

133

92.2

64.0

70.6

4.58

1.71

1.74

2.28

1.45

1.58

1.67

1.62

1.49

2.97

1.51

1.53

.631

1.36

2.19

.848

1.01

.979

2.19

1.55

1.51

2.02

1.57

1.23

1.70

1.03

1.04

2.62

1.74

2.64

1.80

1.42

.983

1.81

1.52

2.32

2.00

1.28

.857

1.59

1.28

1.83

1.27

.837

1.05

.888

1.57

1.20

1.64

2.53

1.75

1.22

1.54

5.28

25.14

25.55

2.64

19.78

21.47

1.87

21.95

20.51

5.42

1.74

20.82

.75

18.44

2.52 

.95

13.75

13.54

2.44

18.55

20.44

2.52

18.56

16.75

1.95

15.95

14.15

2.82

1.94

5.04

2.01

19.58

1.10

2.09

20.69

2.66

2.50

1.48

.99

18.88

17.50

2.11

1.46

.95

14.21

1.02

1.58

16.24

1.89

2.63

2.02

1.40

18.21

Revised peak discharge.--1946-47; Apr. 30 (9:30 p.m.) 3,900 cfs; Apr. 30 (11:45 p.m.) 

5,100 cfs; July 7 (11 p.m.) 5,220 cfs. '

1950-51: Nov. 25 (12:50 p.m.) 2,620 cfs (7.10 ft)j Feb. 7 (5 p.m.) 2,400 cfs (6.85 ft).

1951-52: Dec. 21 (4 a.m.) 3,280 cfs (7.78 ft); Mar. 11 (9 a.m.) 2,510 cfs (6.98 ft); 

Sept. 1 (1:45 p.m.) 2,880 cfs (7.38 ft).

1952-53: Nov. 22 (2:50 a.m.) 2,740 cfs (7.25 ft); Jan. 24 (1 p.m.) 2,470 cfs (6.95 ft). 

* Partly estimated.
306 ELK RIVER BASIN

Big Elk Creek at Elk Mills, Md.--Continued

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

3.5 

3.7 

3.0

3.5 

4.0 

4.5

190

360

590

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

49

44

40

39

39

55

52

86

62

47

44

41

41

63

86

45

45

37

35

34

33

30

31

34

36

34

*33

31

33

104

55

1,438

46.4

0.882

1.02

Nov.

39

36

35

34

33

33

34

39

35

38

79

47

40

37

36

37

36

34

37

42

40

45

*41

40

36

36

35

34

b31

b50

1,149

38.3

0.728

0.81

Dec.

b30

b33

37

39

3?

35

33

34

36

37

b33

b30

b28

b28

b30

b26

b25

b25

b28

b25

b24

b23

b25

b27

b32

31

b24

b23

b23

b25

b24

912

29.4

0.559

0.64

Jan.

b24

b23

b30

31

*30

b27

b25

b20

b25

45

52

65

49

40

b32

b30

34

b29

b27

b34

b30

b27

b27

b24

b23

b25

b23

b22

b35

400

134

1,442

46.5

0.884

1.02

Feb.

57

424

192

143

138

287

*262

98

71

63

63

80

60

52

55

52

51

239

102

68

58

b49

b47

b47

61

70

52

51

15

3,037

105

2.00

2.15

Mar.

42

47

45

42

40

40

*45

86

79

49

56

65

61

534

145

138

157

102

84

82

82

93

114

130

78

69

66

60

66

78

*61

2,836

91.5

1.74

2.01

Apr.

57

55

61

68

60

61

205

179

109

86

78

73

69

66

75

118

82

71

68

65

61

61

60

63

61

75

65

61

58

55

2,326

77.5

1.47

1.64

May

53

61

73

63

57

56

90

 63

55

54

53

52

54

51

47

45

42

45

44

47

42

42

49

44

40

40

47

47

40

39

40

1,573

50.7

0.964

1.11

June

218

TlO

116

61

52

47

»42

41

39

58

194

52

42

37

35

39

56

67

42

37

48

52

40

80

41

35

36

35

33

30

1,815

60.5

1.15

1.28

July

30

30

101

42

42

40

39

36

200

52

40

35

33

33

30

30

34

31

29

29

 497 ~63

47

41

40

34

42

56

41

31

28

1,856

59.9

1.14

1.31

Aug.

37

27

26

24

104

50

40

33

27

27

25

24

25

25

24

23

33

22

31

21

 65

36

26

23

23

22

22

21

20

50

22

918

29.6

0.563

0.65

Sept.

24

23

21

19

19

31

44

24

21

20

20

20

20

20

20

24

22

20

18

2T

20

19

20

35

26

22

32

60

30

27

742

24.7

0.470

0.52

Calendar year 1955 : Max 1,910 Mln 8.0 Mean 57.1 Cfsm 1.09 In. 14.72

Water year 1955-56 : Max 534 Mln 18 Mean 54.8 Cfsm 1.04 In. 14.16

Peak discharge (base. 1,700 efs).--No peak above base. 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
ELK RIVER BASIN 307

Little Elk Creek at Chllds, Md.

Location.--Lat 39°38'30", long 75°52'00", on right bank at downstream side of highway 

bridge 0.2 mile southeast of Chllds, Cecil County, 1.6 miles upstream from Laurel Run, 

2.4 miles northwest of Elkton, and 6.1 miles upstream from confluence with Big Elk Creek.

Drainage area. 26.8 sq mi.

Records available. October 1948 to September 1956.

Sage. Water-stage recorder and concrete control. Datum of gage is 66.72 ft above mean 

sea level, datum of 1929.

Average discharge. 8 years, 36.1 cfs.

Extremes.--Maximum discharge during year, 1,520 cfs July 21 (gage height, 4.95 ft), from 

rating curve extended above 690 cfs as explained below; minimum, 1.1 cfs July 15; minimum daily, 8.6 cfs Jan. 8.

1948-56: Maximum discharge, 5,400 cfs Aug. 12, 1955 (gage height, 8.37 ft), from 

rating curve extended above 690 cfs on basis of slope-area determination and computation 

of peak flow over dam three-quarters of a mile upstream at gage height 5.24 ft and 

conveyance studies; minimum, 0.4 cfs July 31, Sept. 5, 1954 (gage height, 1.31 ft); minimum daily, 3.3 cfs July 31, 1954.

Remarks.--Records good except those for periods of ice effect, doubtful gage-height record, 

or those below 5 cfs, which are fair. Some regulation caused by paper mills above 

station.

Revisions (water yearsJ.--WSP 1232: 1949-51.

Rating table, water year 1955-56, except periods of loe effect 

height, In feet, and discharge, in cubic feet per second)

1.6

1.7

1.8

1.9

7.6

15

28

2.0 

2.5 

3.0

65

230

450

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Ttotal

Mean

Cfsm

In.

Oct.

22

19

18

16

16

25

22

d45

f!

18

16

16

15

31

42

23

20

19

18

16

16

16

16

16

19

18

*16

15

T5

42 

23

653

21.1

0.787

0.91

Nov.

18

16

16

16

16

IB" 14

18

16

19

44

23

20

19

18

19

19

IS

19

23

22

23

22

20

19

19

18

18

16

15

579

19.3

0.720

0.80

Dec.

14

14

14

15

15

14

14

14

14

15

14

13

13

13

14

12

12

12

13

12

11

IT

12

12

14

13

11

bll

12

12 

bll

401

12.9

0.481

0.56

Jan.

bll

blO

12

12

*12

12

11

15~~ 8.6

16

23

28

22

16

13

14

14

13

b!3

15

12

b!2

13

11

12

12

10

10

15

"go" 220 

674.6

21.8

0.813

0.94

Feb.

24

224

106

97

79

165

*d!42

44

34

30

30

41

28

24

25

25

24

189

50

34

28

23

22

20vs

33

24

23

20

1,638

56.5

2.11

2.27

Mar.

19

22

22

19

II

18

20

46

37

25

30

36

34

~m394

in

97

57

44

42

44

58

82

65

38

34

31

28

d31

d44

*31

1,657

53.5

2.00

2.30

Apr.

23

27

28

33

33

28

144

128

54

39

36

33

31

30

30

68

42

34

31

30

27

27

27

27

27

31

30

27

25

24_

1,179

39.3

1.47

1.64

May

22

24

36

30

30

25

53

35

25

25

24

23

24

23

20

20

19

T?

19

23

20

20

24

22

19

19

24

24

19

19 

19

743

24.0

0.896

1.03

June

d!35

dlOO

d90

d45

d30

d22

*d!9

18

16

Zo

~2T 186

22

19

18

23

22

56

22

19

23

25

19

96

23

18

18

18

16

16

1,199

40.0

1.49

1.66

July

15

15

d49

16

22

19

18

16

d!50

d35

d20

15

13

15

9.5

12

13

13

13

14

~38 432

28

25

25

22

34

33

33

23 

19

1,204.5

38.9

1.45

1.67

Aug.

18

18

18

16

d!40

d60

d35

d26

d21

d21

d20

d!9

d!9

d!9

d!8

d!7

d!6

d!5

d!4

dli

*d36

20

15

14

il

13

13

13

13

13 

14

721

23.3

0.869

1.00

Sept.

16

13

12

12

12

d23

d48

TI

12

12

11

IT

11

11

12

13

13

12

11

12

12

11

12

19

13

12

d!9

d32

15

14

450

15.0

0.560

0.62

Calendar year 1955: Max 1,030 Mln 4.6 Mean 30.6 Cfsm 1.14 In. 15.52

Water year 1955-56: Max 432 Mln 8.6 Mean 30.3 Cfsm 1.13 In. 15.40

(4.95 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed on basis of weather records and records for 

nearby stations.
308 NORTHEAST RIVER BASIN 

Northeast Creek at Leslie, Md.

Location. Lat 39°37'40", long 75°56'40", on left bank at downstream side of highway 

bridge, 0.7 mile northeast of Leslie, Cecil County, 1.5 miles southeast of Bay View, 

and 1.7 miles upstream from confluence with Little Northeast Creek.

Drainage area. 24.3 sq mi.

Records available. October 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 115.0 ft above mean 

sea level, datum of 1929.

Average discharge. 8 years, 33.4 cfs.

Extremes. Maximum discharge during year, 858 cfs Mar. 14 (gage height, 3.83 ft); minimum, 

 atout 3.5 cfs Jan. 8, result of freezeup; minimum dally, 7.0 ofs Sept. 19, 22.

1948-56: Maximum discharge, 2,590 cfs Aug. 13, 1955 (gage height, 6.30 ft), from 

rating curve extended above 920 cfs on basis of slope-area determination at gage height 

5.06 ft; minimum, 1.4 cfs Mar. 3, 1950, result of freezeup, minimum daily, 2.4 cfs 

Aug. 2, 1954.

Remarks. Records good except those for periods of ice effect, which are fair, 

regulation at low flow caused by powerplant above station.

Revisions (water years). WSP 1232: 1949-51.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, in feet, and discharge, In cubic feet per second)

Slight

1.5

1.6

1.7 

1.9 

2.1

4.6

8.3

13

27

50

2.3 

2.6 

3.0 

3.2

175

362

480

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Ibtal

Mean

Cfsm

In.

Oct.

13

12

11

10

TT

13

15

26

21

13

12

12

12

22

31

19

15

14

13 

12

11

11

11

11

12

11

11

11

11 

22

19

454

14.6

0.601

0.69

Nov.

13

12

11

11

11

11

11

12

12

13

33

IS

14

13

12

12

12

11

11 

14

13

15

*13

13

12

12

12

12

11 

11

391

13.0

0.535

0.60

Dec.

11

11

12

 il

T£

12

11

11

11

12

bll

bio

bio

blO

11

blO

b9.5

b9.5

10 

b9.5

b9.0

bTT(J

b9.5

blO

11

11

b9.5

b9.0

b9.0 

9.7

b9.0

323.2

10.4

0.428

0.49

Jan.

b9.0

b8.5

*b9.2

9.7

9.7

9.2

b9.0

b8.0

bib

11

17

23

18

14

11

11

12

blO

blO 

12

bll

blO

blO

b9.0

b9.0

b9.5

b8.5

b8.5

bll 

b90

 

152

559.8

18.1

0.745

0.86

Feb.

b31

102

242 -§5

110

*113

239

42

30

26

26

45

26

22

23

25

21

197

59 

30

24

20

b!8

b!7

26

32

22

21

18

1,702

58.7

2.42

2.60

Mar.

17

18

19

17

15

16

*17

37

38

22

26

33

29

409

158

74

122

50

35 

37

38

50

84

77

34

31

28

25

27 

*38

28

1,689

54.5

2.24

2.58

Apr.

24

23

25

28

31

25

156

143

45

32

28

26

24

23

24

51

37

27

24 

23

22

21

20

20

22

25

25

22

20

19

1,035

34.5

1.42

1.58

May

17

19

27

23

26

20

36

23

18

18

17

16

17

16

14

13

13

13

13 

15

13

13

22

16

13

12

Ts

16

13 

12

13

532

17.2

0.708

0.81

June

84

60

64

24

17

*15

13

12

12

15

72

17

13

11

10

13

13

19

12

11

13

16

12

94

18

12

12

12

10 

9.2

715.2

23.8

0.979

1.09

July

9.2

8.8

31

15

22

16

15

13

99

21

14

12

10

10

9.2

9.2

9.7

9.2

8.3 

879

447 "32

20

17

16

13

16

40

26

15

12

1,004.5

32.4

1.33

1.54

Aug.

12

11

11

10

167

37

22

16

13

13

12

11

11

11

10

9.2

8.8

8.8

8^3 

*8.8

27

17

12

11

10

9.2

9.7

9.2

8.8 

8 .3

8 .3

541.9

17.5

0.720

0.83

Sept.

8.3

8.3

8.3

7.9

7.4

19

37

IT

8.8

7.9

7.9

7.9

7.9

7.9

8.3

10

9.2

7.9

7.0 

8.3

7.9

7.0

7.4

11

11

7.9

9.7

24

12

11

315.1

10.5

0.432

0.48

Calendar year 1955: Max 1,530 Min 3.8 Mean 27.6 Cfsm 1.14 In. 15.42

Water year 1955-56: Max 447 Mln 7.0 Mean 25.3 Cfsm 1.04 In. 14.15

Peak discharge (base, 800 cfs). Mar. 14 (9:30 p.m.) 858 cfs (3.83 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice .
SUSQUEHANNA RIVER BASIN 

Oaks Cr-eek at Index, N. Y.

309

Location.--Lat 42°40'00", long 74"57'35", on right bank 200 ft upstream from highway

bridge at Index, Otsego County, half a mile upstream from mouth, and 3 miles southwest 

of Cooperstown.

Drainage area . 103 sq ml.

Records available . November 1929 to September 1932, March 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,174.50 ft above mean 

sea level (levels by Corps of Engineers). Prior to Jan. 5, 1932, staff gage and Jan. 5 

to Sept. 30, 1932, wire-weight gage, at highway bridge 200ft downstream at different 

datum.

AveraKe discharge.--21 years (1930-32, 1937-56), 172 cfs.

Extremes. Maximum discharge during year, 1,610 cfs Apr. 16 (gage height, 5.85 ft); minimum, 9.9 cfs Sept. 14 (gage height, 2.165 ft).

1929-32, 1937-56: Maximum discharge, 2,500 cfs Mar. 22, 1948 (gage height, 6.60 ft); 

maximum gage height, 6.69 ft Dec. 30, 1942 (ice Jam); minimum discharge, 3.7 cfs 

Sept. 4, 1953; minimum gage height, 2.045 ft Aug. 27, 28, 1949.

Remarks.--Records good except those for periods of ice effect or backwater from aquatic 

vegetation, which are fair.

Revisions.--WSP 8S1: Drainage area.

Rating tebles, water year 1955-56, except periods of 1 

vegetation (gage height, In feet, and discharge

or backwater from aquatic 

feet per second)

Apr. 16 to Sept. 30 Oct. 16 to Apr. 16

2.1 

2.3 

2.5

7.2

17

3.5 

4.0 

5.0 

6.0

3.1 110 

Discharge, In cubic

210

398

980

1,730

3.1 

3.5 

4.0

123

222

426

4.5 

5.0 

6.0

70O 

1,010 

1,730

second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

18

16

15

14

16

66

86

76

63

53

48

45

45

43

79

699

658

*446

369

329

312

296

277

274

312

300

296

277

266 

327

446

6,567

212

2 .06

2 .37

Nov.

369

346

338

392

360

342

321

308

288

274

 ill

266

248

305

*288

317

338

300

292

285

274

262

255

266

242

235

225

219

200 

 

195

8,627

288

2.80

3 .11

Dec.

185

170

183

299

296

252

215

220

225

210

205

205

196

185

185

160

165

165

160

118

110

*98

106

125

155

140

122

112

118 

120

118

5,323

172

1.67

1.92

Jan.

112

104

122

129

127

120

108

80

86

121

170

180

167

135

142

144

140

112

110

112

116

116

116

114

112

*104

106

100

98

106

3,707

120

1.17

1.34

Feb.

92

92

97

88

122

114

106

98

97

97

94

97

97

90

96

76

*80

99

102

98

86

74

76

82

110

130

156

T45

120

2,911

100

0.971

1.05

Mar.

130

160

193

208

199

196

477

682

596

*574

541

612

580

563

546

446

310

410

430

410

380

370

364

342

310

317

296

270

262 

252

242

11,668

376

3.65

4.21

Apr.

232

235

292

556

1,180

 1,280

1,320

1,150

1,130

1,040

1,050

1,040

1,010

1,070

1,070

1,400

1,460

1,310

1,200

1,060

926

873

796

733

648

619

584

595

771 

940

27,570

919

8.92

9.95

May

7581

660

613

562

519

478

454

416

372

372

347

347

327

323

355

339

323

292

281

266

242

*229

229

216

196

181

184

187

168 

163

165

10,564

341

3.31

3.81

June

193

178

295

230

205

190

175

165

165

180

195

160

145

131

*118

108

100

89

82

76

70

67

68

68

60

58

56

55

53 

49

3,784

126

1.22

1.37

July

46

44

42

41

50

60

50

45

76

5T

47

49

47

52

44

41

39

*36

35

36

65

64

54

43

38

36

34

32

30 

29

28

1,387

44.7

0.434

0.50

Aug.

26

25

24

23

22

21

32

21

17

16

14

14

22

24

17

*16

14

14

19

20

16

16

14

18

18

14

13

15

16

18

577

18.6

0.181

0.21

Sept.

22

19

16

14

13

12

13

12

12

11

*12

12

11

12

16

29

34

31

23

47

36

27

47

122

63

48

45

46

38 

36

879

29.3

0.284

0.32

Calendar year 1955: Max 1,000 Mln 5.7 Mean 181 cfsm 1.76 In. 23.87

Water year 1955-56: Max 1,460 Mln 11 Mean 228 Cfsm 2.21 In. 30.16

Peak discharge (base, 1.200 cfs).--Apr. 7 (12:45 a.m.) 1,460 cfs (5.66 ft); Apr. 16 (11 p.m.) 

1,610 cfs (5.85 ft).

* Discharge measurement made on this day.

Note --Stage-discharge relation affected by ice Nov. 29 to Dec. 2, Dec. 7, 8, 10, 11, 14, Dec. 1 

to Jan. 3, Jan. 6-9, 14, 18-24, 26-29, Jan. 31 to Feb. 2, Feb. 4-8, 14, 16, 17, 20-26, Feb. 28 to 

Mar. 1, Mar. 17-22, 25, 28. Backwater from aquatic vegetation June 4-12, July 3-18, July 26 to 

Sept. 11.

505690 O - 59 - 21
310 SUSQUEHANNA RIVER BASIN

Susquehama River at Colliersville, N. Y.

Location. Lat 42°29'55", long 74°58'55", on right bank a quarter of a mile downstream 

from powerplant of New York State Electric & Gas Corp. and half a mile north of 

Colliersville, Otsego County.

Drainage area. 351 sq mi.

Records available. May 1907 to December 1908, July 1924 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,110.80 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers). Prior to Sept. 7, 1908, powerplant records and 

Sept. 7 to Dec. 31, 1908, staff gage, at site a quarter of a mile upstream at different 

datum.

Average discharge.--32 years (1924-56), 580 cfs.

Extremes. Maximum discharge during year, 5,850 cfs Apr. 6 (gage height, 7.00 ft); minimum, 14 cfs Oct. 1 (gage height, 1.475 ft); minimum daily, 14 cfs Oct. 1.

1924-56: Maximum discharge, 8,740 cfs Mar. 19. 1936 (gage height, 8.13 ft); minimum, 1.2 cfs Sept. 5, 1946 (gage height, 1.105 ft); minimum daily, 1.6 cfs Sept. 5, 1946.

Remarks. Records excellent. Plow regulated by Otsego Lake. Large diurnal fluctuation 

caused by powerplant above station.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56 (gage height, in feet, and discharge,

1.45

1.5

1.6

1.8

2.1

2.5

Oct. 1 1

11

16

28

67

159

355

to Mar. 8

3 .0

4.0

5.0

6.0

7.0

605

1,500

2,550

5,840

5,850

1.6

1.7

1.9

N<

tab:

Mar. 9 to Sept. 50

22 2.2

36 2.5

80 5.0

187

330

605

Note.--Same as preceding 

table above 5.O ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

14

31

48

50

54

419

934

469

397

264

111

230

231

307

367

2,410

4.4BO

*3,400

2,260

1,640

1,330

1,280

992

926

1,190

1,090

851

960

841 

912

1,300

29,788

961

2 .74

3.16

Nov.

1.240

1,090

779

1,180

1,170

962

855

868

848

836

829

829

730

871

*947

998

1,230

1,180

1,080

829

829

829

816

79O

762

395

622

388

619

3J30

25,781

859

2 .45

2.73

Dec.

3B5

380

380

842

1.590

1,290

597

783

855

862

751

685

683

593

615

547

531

395

416

345

246

*285

349

403

362

385

391

264

258 

296

267

16,831

543

1.55

1.78

Jan.

268

254

211

303

211

260

278

238

244

410

631

836

842

631

575

532

547

459

414

454

462

340

463

302

321

*299

304

319

362

345 

268

12,383

399

1.14

1.31

Feb.

264

217

299

265

260

229

349

399

434

476

385

385

385

385

385

380

*380

286

385

347

292

197

323

274

355

816

666

512

474

10,804

373

1.06

1.14

Mar.

482

633

781

842

712

719

1,440

2,910

5,230

2,640

*2,120

2,210

2,110

1,880

1,670

1,440

1,200

1,280

1,280

1,220

1,080

1,080

1,010

914

868

855

806

768

641 

714

626

40,161

1,296

3.69

4.26

Apr.

524

765

984

1,390

4,050

*5.560

5,200

4,290

5,510

5,040

2,810

2,870

5,050

2,930

5,000

5,890

5,160

4,810

5,970

5,550

2,900

2,760

2,660

2,540

2,230

2,060

1,980

1,900

2,280

3,140

89,383

2,979

8.49

9.47

May

3,280

2,510

2,220

1,970

1,780

1,570

1,420

1,320

1,250

1,140

944

881

881

811

1,090

917

1,070

874

751

881

881

*815

641

558

578

442

452

596

622

546

657

54,108

1,100

5.15

5.61

June

474

560

814

816

480

672

491

667

480

474

519

442

451

*251

515

209

517

213

86 52~8

118

162

210

212

202

106

147

207

171 

142

10,896

365

1.03

1.15

July

110

141

158

125

186

275

184

126

161

159

168

171

166

169

157

169

146

*167

114

111

292

158

219

225

109

141

106

101

125 

116

95

4,804

155

0.442

0.51

Aug.

101

99

95

78

95

103

111

107

107

55

86

35

106

120

119

*35

115

77

80

82

74

54

85

85

35

32

67

32

81 

52

112

2,449

79.0

0.225

0.26

Sept.

35

78

35

55

71

32

80

32

32

55

*80

63

33

77

52

95

154

87

80

90

119

101

256

404

342

265

393

382

254

120

3,864

129

0.368

0.41

Calendar year 1955: Max 4,480 Min 14 Mean 623 Cfsm 1.77 In. 24.11

Water year 1955-56: Max 5,560 Min 14 Mean 768 Cfsm 2.19 In. 29.79

Peak discharge (base, 5,500 cfs).--Oct. 17 (10:30 a.m.) 4,710 cfs (6.46 ft); Mar. 9 (2:45 a.m.)

3,590 cfs (5.74 ft); Apr. 6 (7:15 .) 5,850 cfs (7.00 ft); Apr '"" .----..--.

May 1 (12 m.) 5,660 cfs (5.90 ft).

* Discharge measurement made on this day.

17 (12 5,610 cfs (6.89 ft);
SUSQUEHANNA RIVER BASIN 311

Charlotte Creek at Davenport Center, N. Y.

Location. Lat 42°26'30", long 74°56'05", on right bank 200 ft downstream from Pumpkin 

Hollow, 1,000 ft downstream from site of former highway bridge, and three-quarters of 

a mile downstream from Davenport Center, Delaware County.

Drainage area. 163 sq mi.

Records available. June 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,192.64 ft above mean sea level, unadjusted.

Average discharge. 18 years, 260 ofs.

Extremes.--Maximum discharge during year, 5,930 cfs Oct. 16 (gage height, 7.27 ft); minimum, 10 cfs Aug. 28 (gage height, 0.30 ft).

1938-56: Maximum discharge, 14,000 cfs Sept. 22, 1938 (gage height, 9.65 ft, from 

floodmarks), from rating curve extended above 5,000 cfs on basis of slope-area determination of peak flow; minimum, 4.5 cfs Sept. 2,3, 1939 (gage height, 0.16 ft).

Remarks. Records good except those for periods of ice effect, backwater from debris, or 

fragmentary or no gage-height record, which are fair.

Revisions (water years). WSP 921: 1938-39.

Rating tables, water year 1955-56, except periods of Ice effect or backwater

from debris (gage height, in feet, and discharge, In cubic feet per second)

(Shifting-control method used Mar. 7)

Oct. 1 to Mar. 7 Mar. 7 to Sept. 3O

0.6 

.8 

1.0 

1.4 

2.0

115

241

510

3.0 1,100

4.0 1,850

5.0 2,820

7.0 5,420

0.3

.5

1.0 

1.5

57

122

284

2.0 

3.0 

4.0 

5.0 

7.0

499

1,060

1,780

2,670

5,140

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

64

53

48

43

40

223

438

297

234

182

154

134

120

113

400

4.380

*2,980

1,560

1,070

744

595

485

398

389

585

446

403

326

293

662

690

18,549

598

3.67

4.23

Nov.

510

436

398

605

515

441

398

375

331

305

326

344

288

970

*720

823

840

605

520

470

417

375

344

417

322

288

268

260

200

190

13,301

443

2.72

3.03

Dec.

192

179

198

661

695

470

350

357

331

280

270

260

237

200

215

180

180

180

170

140

*114

110

112

150

240

225

165

118

120

130

130

7,357

237

1.45

1.68

Jan.

124

110

124

120

115

110

104

88

100

130

580

590

530

340

340

318

280

220

180

195

180

170

165

155

145

*140

135

125

120

131

120

6,344

205

1.26

1.45

Feb.

10O

114

112

88

114

110

115

113

113

120

123

134

139

118

145

145

*114

200

234

182

145

125

135

130

340

906

635

f495

370

5,914

204

1.25

1.35

Mar.

330

400

580

580

44O

410

2,410

*5,030

*a2,190

al,310

al,160

al,350

952

802

666

480

410

520

450

390

340

330

327

300

250

277

258

225

219

226

212

21,824

704

4.32

4.98

Apr.

205

236

586

2,200

4,050

*3,050

2,500

1,400

1,210

1,070

1,050

1,100

1,120

946

1,220

2,240

2,290

1,370

1,080

832

688

869

f826

f784

650

650

598

827

1,100

1,180

37,927

1,264

7.75

8.65

May

778

603

563

490

480

398

377

315

273

307

288

280

262

233

f292

262

277

230

216

196

176

*155

175

176

141

127

140

170

138

120

130

8,768

283

1.74

2.00

June

0320

c250

c390

C280

c230

c200

C175

C150

c!4O

0135

c!55

122

110

*96

94

85

76

68

59

54

51

c49

c50

c76

c56

47

49

63

47

38

3,715

124

0.761

0.85

July

35

30

28

27

56

128

87

59

51

46

36

32

31

53

63

40

35

*30

28

28

63

95

88

76

57

46

43

36

30

26

25

1,508

48.6

0.298

0.34

Aug.

24

22

20

18

17

17

16

16

14

14

14

13

14

17

18

*16

14

13

13

a!3

a!3

a!3

a!3

a!4

14

13

12

13

21

27

49

525

16.9

0.104

0.12

Sept.

56

37

31

24

20

17

19

18

17

15

*13

13

13

13

16

75

125

124

63

154

123

78

212

1,050

371

236

182

155

133

120

3,523

117

0.718

0.80

Calendar year 1955: Max 4,380 Min 8.6 Mean 315 Cfsm 1.93 In. 26.22

Water year 1955-56: Max 4,380 Min 12 Mean 353 Cfsm 2.17 In. 29.48

Peak discharge (base, 2.600 efs).--Oct. 16 (12 m.) 5,930 cfs (7.27 ft); Mar. 8 (6 p.m.) 3,590 cfs 

(5.88 ft); Apr. 5 (1 a.m.) 5,180 cfs (7.02 ft); Apr. 16 (12 p.m.) 3,180 cfs (5.51 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Charlotte Creek at West 

Davenport.

c Backwater from debris.
SDSQUEHANNA RIVER BASIN

Otego Creek near Oneonta, N. Y.

Location. Lat 42°27 I 00", long 75°06'50", on right bank l| miles south of West Oneonta, 

1.5 miles upstream from mouth, and 2-J miles west of Oneonta, Otsego County.

Drainage area. 108 sq ml.

Records available. August 1940 to September 1956.

flap;e. Water-stage recorder. Datum of gage Is 1,047.99 ft above mean sea level (levels by 

Corps of Engineers).

Average discharge. 16 years, 177 cfs.

Extremes. Maximum discharge during year, 3,240 cfs Apr. 5 (gage height, 11.75 ft, from 

reconstructed gage-height graph); minimum, 14 cfs Aug. 18, 23 (gage height, 1.62 ft, 

backwater from aquatic vegetation and/or debris).

1940-56: Maximum discharge, 6,000 cfs Dec. 30, 1942 (gage height, 14.10 ft, from 

high-water mark In well), from rating curve extended above 3,200 cfs by logarithmic 

plotting; minimum, 5.6 cfs Sept. 2, 1953 (gage height, 1.40 ft, backwater from weeds).

Remarks. Records good except those for periods of Ice effect, doubtful gage-height record, or backwater from aquatic vegetation or debris, which are fair.

Rating tables, water year 1955-56, except periods of ice effect or backwater from aquatic 

vegetation or debris (gage height, in feet, and discharge, in cubic feet per- second)

Oct. 1 to Apr. 5

1.5 

1.7 

2.0 

2.4 

3.0

114

248

5.0 

8.0 

1O.O 

11.5

673 

1,310 

2,030 

3,OZO

Apr. 6 to Sept. 30

1.5 

1.7 

2.0

2.4

3.0 

5.0

116

253

673

Note.--Same as preceding 

table above 5.0 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfstn

In.

Oct.

26

25

23

21

20

155

245

175

130

96

80

72

66

64

185

1,370

1,500

*810

*464

326

270

237

207

211

354

255

239

202

186

324

62 8

8,966

289

2.68

3.09

Nov.

356

294

265

413

317

267

243

227

216

195

211

216

186

657

433

*532

576

374

328

303

277

253

243

272

225

211

200

197

168

161

8,816

294

2 .72

3.04

Dec.

161

153

161

528

604

354

260

262

246

225

211

204

195

172

180

155

155

150

130

*90

84

80

84

112

175

164

1Z4

94

96

101

99

5,809

187

1.73

2 .00

Jan.

96

80

106

103

93

89

80

62

82

112

328

455

340

205

200

188

172

140

118

135

124

116

110

98

96

88

*90

82

78

87

78

4,231

136

1.26

1.46

Feb.

64

74

72

50

78

70

78

76

78

79

82

99

104

85

104

*99

78

150

179

144

122

104

108

96

236

444

2M

243

200

3,690

127

1.18

1.27

Mar.

205

239

326

349

274

260

1,360

*1 J 890

1,600

903

726

*820

584

512

416

290

240

280

300

270

230

220

220

207

175

190

177

155

146

150

146

13,860

447

4.14

4.77

Apr.

139

157

338

1,170

d2,840

*2,310

1,850

1,180

852

*738

728

d824

909

734

930

1,390

1,530

1,000

770

552

431

582

518

488

359

370

348

397

597

960

25,991

866

8.02

8.95

May

544

377

355

298

288

253

239

198

175

203

196

219

196

173

191

189

207

170

159

150

133

120

*129

135

105

94

101

112

94

83

103

5.989

193

1.79

2.06

June

155

131

263

200

157

141

120

105

94

105

95

82

70

*61

70

61

53

48

43

40

38

37

37

43

38

33

31

30

28

26

2,435

81.2

0.752

0.84

July

24

23

22

21

30

54

44

34

40

46

32

30

31

50

40

32

29

*26

24

26

49

100

78

62

45

39

32

30

26

24

23

1,166

37 .6

0.348

0.40

Aug.

22

21

20

18

17

17

17

16

15

15

15

15

15

18

17

*16

15

15

17

16

15

15

14

22

20

17

16

20

46

26

27

575

18.5

0.171

0.20

Sept.

25

23

21

19

17

16

17

16

16

IS

*15

15

15

16

17

58

84

60

40

112

76

54

140

340

150

106

86

72

64

60

1,765

58.8

0.544

0.61

Calendar year 1955: Max 1,500 Min 7.4 Mean 186 Cfsm 1.72 In. 23.33

Water year 1955-56: Max Z,840 Min 14 Mean 228 Cfsm 2.11 In. 28.69

Peak discharge [base, 1,700 cfs).--Mar. 8 (8 p.m.) 2,160 cfs (10.26 ft); Apr. 5 (4 a.m.) 3,24O cfs 

(11.75 ft); Apr. 17 (5 a.m.) 1,800 cfs (9.49 ft) .

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

records for nearby stations and normal pattern for peak stages.

Note.--Stage-discharge relation affected by ice Dec. 7, 15-25, 28, 29, Jan. 1, 2, 7, 8, 14, 18- 

20, 24-29, Jan. 31 to Feb. 4, Feb. 6, 17, 22-24, 29, Mar-. 1, 16-22, 25, 28. Backwater- from aquatic 

vegetation and/or debris Oct. 1-15, June 21 to Sept. 30 (no gage-height record Sept. 26-30).
SUSQUEHANNA RIVER BASIN

East Sidney Reservoir at East Sidney, N. Y.

Location.--Lat 42 D 19'45", long 75°13'45" , at East Sidney Dam on Ouleout Creek, 0.1 mile 

upstream from highway bridge at East Sidney, Delaware County, 4 miles upstream Crom 

mouth, and 4|- miles east of Unadilla.

Drainage area.--102 sq mi (measured by Corps of Engineers).

Records available.--November 1949 to September 1952 (monthly elevations and contents), October 1952 to September 1956.

Gage.--Water-stage recorder. Datum of gage is at mean sea level (levels by Corps of 

Engineers).

Extremes.--Maximum elevation during year, 1,183.63 ft Apr. 8; minimum, 1,115.53 ft Aug. 28.

1949-56: Maximum elevation, that of Apr. 8, 1956; minimum, 1,115.01 ft Aug. 31, 

1953.

Remarks. Reservoir is formed by concrete dam and rock-fill dike, completed by Corps of 

Engineers in June 1950 for flood control; first used for flood regulation on Mar. 28, 

1950. Usable capacity, 33,550 acre-ft between elevations 1,115.0 ft (sill of conduits) 

and 1,203.0 ft (crest of spillway). Dead storage, 56 acre-ft. Floods are controlled 

by operation of five gates. Water is stored during high flows and released when downstream conditions warrant.

Cooperation. Capacity curve furnished by Corps of Engineers.

Capacity table, water year 1955-56 (elevations, in feet, 

contents, in acre-feet)

and

1,115.0 

1,120.0 

1,125.0 

1,130.0 

1,135.0 

1,140.0 

1,145.0 

1,1SO.O

56

156

358

663

1,079

1,630

2,358

3,281

1,155.0

1,160.0

1,165.0

1,170.0

1,175.0

1,180.0

1,185.0

4,451

5,909

7,626

9,614

11,926

14,608

17,730

Elevation, in feet, at 12 p.m., water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

16.3

16.1

16.1

16.1

16.0

18.3

17.5

18.4

17.6

17.3

17.1

16.9

16.8

17.0

25.0

41.7

51.7

54.3

42.8

21.8

20.4

19.7

19.1

20.0

20.0

19.4

19.0

18.7

18.5

25.0

22.5

246

+174

Nov.

21.5

20.7

20.4

21.6

20.4

19.9

19.6

19.3

19.0

18.8

19.3

18.9

18.6

20.6

19.6

22.6

21.4

20.9

20.6

20.0

19.6

19.3

19.5

19.2

18.7

18.6

18.5

18.4

17^8

18.1

106

-140

Dec.

17.8

17.8

18.1

22.5

20.4

19.8

19.8

19.3

19.1

18.6

18.7

18.4

18.2

18.2

17.9

18.0

17.9

17.9

17.4

16.7

16.5

16.6

16.8

17.0

18.9

17.6

17.1

16.9

17.0

16.9

17.0

82

-24

Jan.

16.7

16.9

16.9

16.9

16.8

16.7

16.4

16.4

16.6

18.8

20.9

20.6

19.4

18.7

18.8

19.0

18.3

18.0

18.0

18.0

17.8

17.8

17.5

17.5

17.4

17.4

17.2

17.0

17.2

17.5

17.2

86

+4

Feb.

17.2

17.0

17.1

17.0

17.2

17.0

17.2

17.2

17.2

17.5

17.6

18.5

18.0

18.1

18.8

18.3

18.3

20.4

19.3

18.9

18.5

18.4

18.2

18.4

28.8

26.2

22.6

21.5

20.8

182

 1-96

Mar.

20.7

22.7

23.5

21.9

21.2

22.1

55.6

71.4

77.0

76.8

73.5

7O.O

63.9

56.1

44.6

27.1

21.9

21.4

20.5

20.3

20.2

19.9

19.4

19.3

19.3

18.7

18.6

18.7

18.4

18.3

18.2

108

-74

Apr.

18.6 2C~5

25.8

53.3

69.7

77.1

82.1

83.4

8T72

77.4

72.9

67.6

61.1

53.6

44.6

42.2

48.1

52.1

45.1

30.4

22.3

22.5

23.6

22.3

21.5

21.6

21.2

22.3

22.5

21.9

222

+114

May

20.7

2072

19.7

19.8

19.1

19.1

18.7

18.2

18.0

18.3

17.8

18.0

17.9

18.3

17.8

18.3

17.9

17.8

17.7

17.5

17.3

17.2

17.8

17.3

17.1

le^g

17.5

17.2

17.0

16.9

17.9

101

-121

June

21.5

22.9

23.4

26.8

2677

21.4

20.3

21.3

19.3

18.4

17.8

17.4

17.2

17.0

16.9

16.7

16.6

16.4

16.3

16.2

16.2

16.3

16.3

16.4

16.2

16.0

16TS

16.4

16.1

16.0

67

-34

July

15.9

15.8

15.8

15.7

18.8

17.3

16.7

16.3

16.9

16.4

16.3

16.3

16.3

17.1

16.5

16.3

16.2

16.0

15.9

16.1

18.2

17.7

18.5

18.2

17.6

17.3

17.0

16.7

16.5

16.4

16.3

72

+5

Aug.

16.2

16.1

16.0

15.9

15.9

15.8

15.8

15.8

15.7

15.7

15.7

15.6

15.7

16.0

15.8

15.7

15.7

15.6

15.6

15.6

15.6

15.6

15..5

1575

15.6

15.6

15.5

15,7

15.7

16.7

17j8

99

+27

Sept.

17.0

16.6

16.4

16.2

16.0

15.9

16.0

15.9

15.8

15.8

15^7

15.7

15.7

15.9

16.1

19.7

19.9

18.4

17.7

20.5

18.9

18.3

27.5

30.0

2273

20.7

19.7

19.1

18.7

18 , 6

118

+19

Calendar year 1955.................... * -229

Water year 1955-56................... * +46

t Contents, in acre-feet, at end of month.

* Change in contents in acre-feet.

Note.--Add 1,100.0 ft. to obtain elevation above mean sea level.
SUSQUEHANNA RIVER BASIN

Ouleout Creek at East Sidney, N. Y.

Location. Lat 42°20'00", long 75°14'05", on right bank a quarter of a mile downstream 

from highway bridge, half a mile downstream from East Sidney Dam, at East Sidney, Delaware County, and 3| miles upstream from mouth.

Drainage area. 102 sq mi.

Records available.--August 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 1,086.31 ft above maan sea level (levels 

by Corps of Engineers). Prior to June 13, 1947, at site half a mile upstream at datum 

27.30 ft higher.

Average discharge. 16 years, 174 cfs (adjusted).

Extremes. Maximum discharge during year, 2,480 cfs Oct. 19 (gage height, 4.76 ft); minimum, 12 cfs Aug. 28 (gage height, 0.70 ft).

1940-56: Maximum discharge, 7,250 cfs Dec. 30, 1942 (gage height, 7.62 ft, site 

and datum then in use), from rating curve extended above 4,000 cfs by logarithmic plotting; minimum, 1.2 cfs (result of construction operations) Aug. 13, 14, 17, 1949 (gage 

height, 0.32 ft) . Maximum discharge known, 16,700 cfs In July 1935, by computation of flow over dam 

and from floodmarks.

Remarks. Records good except those for periods of ice effect or fragmentary or no gageheight record, which are fair. Since November 1949, flow regulated by East Sidney 

Reservoir (see preceding page).

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 16 to Sept. 3D

1.0 

1.2 

1.5 

2.0 

2.5

150

345

610

1.0 

1.2 

1.5 

2.0

41

74

150

345

2.5 

3.0 

3.5 

4.0 

4.5

610

920

1,260

1,650

2,170

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

35

31

25 

f21

fl£

55

108

115

102

80

67

61

56

55

192

399

a58

a428

*al,700

*1,120

271

219

180

172

284

201

176

153

144

372

552

7,451

240

Nov.

379

309

262 

359

296

242

215

197

176

160

173

180

153

223

227

*316

383

304

275

246

219

194

180

197

163

147

141

135

112

108

6,671

222

Dec.

110

102

105 

281

518

235

190

194

180

160

138

138

126

105

118

93

94

94

90

70

66

*64

66

80

140

130

90

74

76

80

78

3,885

125

Jan.

76

64

82

BO

74

68

62

50

62

100

290

509

266

190

176

170

145

110

94

108

98

93

88

82

82

76

*70

68

66

72

70

3,441

111

Feb.

60

64

64 

48

70

64

70

69

70

76

84

119

126

98

120

*138

110

183

215

173

150

120

120

110

321

836

545

388

300

4,911

169

Mar.

240

294

413 

449

332

336

463

29

30

890

*1,620

1,590

1,710

1.760

1,610

1,210

390

300

266

225

200

183

183

173

145

160

150

132

132

129

129

15,873

512

Apr.

126

154

446 

841

19

20

21

589

1,460

*1,810

1,820

1.840

1,830

1,710

1,580

1,450

606

311

1,250

1,300

609

470

439

460

374

355

332

345

449

429

23,445

782

May

322

254

235

205

201

170

163

135

118

120

120

112

115

110

126

112

120

108

102

95

*84

78

82

93

74

67

74

87

74

65

71

3,892

126

June

294

269

145 

288

298

355

209

143

160

135

123

95

82

70

*72

60

53

46

38

34

32

34

32

41

34

28

35

50

34

27

3,716

124

July

23

19

18 

17

61

114

67

44

51

47

36

35

34

55

58

40

34

28

*23

24

65

90

184

160

102

87

72

60

47

41

37

1,773

57.2

Aug.

32

30

27 

24

20

19

19

18

17

16

14

13

13

19

21

*17

16

14

14

14

14

14

13

14

14

14

13

13

16

46

qoi£

640

. 20.6

Sept.

86

52

42 

32

26

23

23

23

19

18

16

*16

15

16

26

126

160

173

108

292

206

147

201

1.090

657

340

246

194

160

138

4,671

156

Adjusted for change in contents in East Sidney Reservoir

Mean 

Cfsm 

In.

243 

2.38 

2.75

220 

2.16 

2.41

Calendar year 1955: 

Water year 1955-56:

125 

1.23

1.41

111 

1.09 

1.26

171 

1.68 

1.81

511 

5.01 

5.77

783 

7.68 

8.57

124 

1.22 

1.40

Observed

Max 1,700 Mln 3.B Mean 161 

Max 1,840 Mln 13 Mean 220

123 

1.21 

1.35

57.3 

0.562 

0.65

21.1 

0.207 

0.24

156 

1.53 

1.71

Adjusted

Mean 161 Cfsm 1.58 in . 21.39 

Mean 220 Cfsm 2.16 In. 29.33

 Discharge measurement made on this day.

. No gage-height record; discharge estimated on basis of notes by engineers and observer, recorded 

range in stage, and records for East Sidney Dam and nearby stations.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

Note.--Stage-discharge relation affected by ice Dec. 17 to Jan. 11, Jan. 17-19, 21, Jan. 23 to 

Feb. 6, Feb. 22-24, Mar. 1, 17, 18, 20, 21, 25 (no gage-height record Dec. 29 to Jan. 4, Jan. 8-11).
SUSQUEHANNA RIVER BASIN 315

Susquehanna River at Unadilla, N. Y.

Location. -Lat 42°19 I 15", long 75°19'00", on right bank 25 ft downstream from highway 

bridge at Unadilla, Otsego County, and 1 mile upstream from Carrs Creek.

Drainage area.--984 sq mi.

Records available. June 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 996.08 ft above mean sea level (Corps of 

Engineers benchmark).

Average discharge.--18 years, 1,637 cfs.

Extremes. Maximum discharge during year, 16,000 cfs Apr. 6 (gage height, 12.38 ft); minimum, 121 cfs Aug. 23, 27; minimum gage height, 1.83 ft Aug. 23.

1938-56: Maximum discharge, 21,500 cfs Dec. 30, 1942 (gage height, 13.94 ft); minimum daily, 58 cfs Oct. 16, 1939.

Remarks. Records excellent except those for periods of ice effect, backwater from weeds 

or aquatic vegetation, or no gage-height record, which are fair. Some diurnal fluctuation caused by powerplants above station.

Revisions (water years K--WSP 851: 1938 (M).

Rating tables, water year 1955-56, except periods of Ice effect or backwater from weeds 

or aquatic vegetation (gage height, In feet, and discharge, In cubic feet per second)

Oct. 16 to Mar. 6 Mar. 7 to Sept. 30

2.2 200

2.5 293

3.0 518

4.0 1,240

5.0 2,180

6.0 3,360

3.0 555

4.0 1,280

6.0 3,360

8.0 

11.0

6,160

11,600

1.8 136

2.1 210

2.5 334

3.0 555

4.0 1,280

6.0 3,380

9.0 8,160

12.3 15,800

Discharge, In cubic feet pep second, water year October 1955 to September 1956

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

c220 

c230

c220 

c215

0210

0330

C2.250

cl,800

ol,450

cl,020

caao

C660

0680

0660

cl,240

7,000

*1 1.500

*9,630

*7,330

5,390

3,520

3,060

2,610

2,230

3,120

2,780

2,370

2,210

2,080

2,720

4,210

83,825

2,704

2.75

3.17

Nov.

3,420 

2,920

2,530 

3,180

3,260

2,760

2,370

2,270

2,130

2,030

2,060

2,140

1,930

2,810

3,680

*3,490

4.260

3,540

3,140

2,770

2,480

2,330

2,210

2,330

2,130

1,740

1,590

1,620

1,470

bl.500

75,890

2,530

2.57

2.87

Dec.

1,220 

1,160

1,190 

2,430

4.050

3,380

2,450

2,140

2,250

b2,100

bl,950

1,870

1,640

1,600

bl,600

bl,450

bl,350

bl,450

bl,120

b940

b620

b745

*b800

b920

1,460

bl,550

bl,120

bl,100

b960

b880 

b840

48,330

1,559

1.58

1.83

Jan.

b840 

b840

b840 

836

833

b740

b880

b820

b620

860

2,290

2,950

2.980

b2,400

bl,900

bl,850

bl,700

bl,400

bl,300

bl,300

bl,300

1,180

1,140

bl,060

»937

b940

856

894

905

884 

b880

39,155

1,263

1.28

1.48

Feb.

b820 

b840

721 

b660

740

746

842

854

918

1,010

1,010

1,060

1,050

967

1,040

»1,110

b980

1,180

1,560

1,300

1,100

b860

b880

baso

1,580

5.910

3,180

b2,500

b2,000

36,298

1,252

1.27

1.37

Mar.

bl,900 

2,220

3,060 

3,280

2,650

2,560

7,880

11,500

*11.900

8,970

*7,860

8,240

7,270

6,620

5,840

4,720

b3,200

b3,300

3,200

b2,900

2,590

2,510

2,450

2,370

bl,950

2,120

1,990

bl,750

1,740

1,690 

1.670

131,900

4,255

4.32

4.98

Apr.

1.560 

1,660

3,100 

7,050

13,500

*15.600

14,466

12,000

9,570

*8,910

8,450

8,470

8,890

8,180

8,330

10,300

12,400

11,000

9,490

a7,910

a6,440

a5, 670

a5,840

 5,800

4,950

4,580

4,400

4,400

5,650

6,890

235,390

7,846

7.97

8.90

May

6.770 

5,100

4,520 

3,900

3,670

3,190

2,990

2,630

2,380

2,310

2,240

2,000

2,030

1,840

2,130

2,110

2,160

1,980

1,780

1,680

 1,670

1,580

1,430

1,430

1,190

1,020

990

1,210

1,140

994 

994

71,058

2,292

2.33

2.69

June

1,580 

1,610

2.480 

2,360

1,720

1,730

1,410

1,310

1,220

1,110

1,110

1,060

930

853

»778

810

500

700

399

406

514

399

398

487

477

410

369

413

402

362

28,307

944

0.959

1.07

July

331 

300

300 

310

363

624

598

422

380

394

364

352

372

500

454

390

364

326

*326

303

414

830

1.060

898

554

460

430

362

328

330 

299

13,738

443

0.450

0.52

Aug.

278 

270

260 

245

225

230

235

240

220

225

165

190

150

235

 240

230

155

205

185

180

175

165

130

185

190

145

130

155

175

260

 

6,353

205

0.208

0.24

Sept.

360 

240

240 

185

160

180

155

185

145

140

140

 180

165

145

205

400

680

720

460

820

780

540

640

5.720

2,460

1,400

1,270

1,110

958

742

19,525

651

0.662

0.74

Calendar year 1955: Max 11,500 Mln 82 Mean 1,754 Cfsm 1.78 In. 24.19

Water year 1955-56: Max 15.6OO Mln 130 Mean 2,158 Cfsm 2.19 In. 29.86

Peak discharge (base. 11.OOP cfs).--Oct. 17 (5 p.m.) 11,80O cfs (11.09 ft); Mar. 9 (6:15 a.m.) 

12,600 cfs (11.06 ft); Apr. 6 (3 p.m.) 16,000 cfs (12.38 ft); Apr. 17 (10:30 a.m.) 13,300 cfs 

(11.32 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on normal 

pattern of recession and records for upstream and downstream stations.

b Stage-discharge relation affected by loe.

c Backwater from weeds.

Note. Backwater from aquatic vegetation Aug. 2 to Sept. 23.
316 SUSQUEHANNA RIVER BASIN 

Unadilla River near New Berlin, N. Y.

Location. Lat 42°38'35", long 75°19'25", on right bank 150 ft upstream from site of old 

highway bridge, a quarter of a mile downstream from Shawler Brook, and 1-f miles north 

of New Berlin, Chenango County.

Drainage area. 196 sq mi.

Records available. July 1924 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,089.90 ft above mean 

sea level (levels by Corps of Engineers). Prior to Oct. 1, 1933, staff gage at highway 

bridge at same datum.

Average discharge. 32 years, 331 cfs.

Extremes. Maximum discharge during year, 5,080 cfs Apr. 5 (gage height, 9.06 ft); minimum, 

18 cfs Oct. 6 (gage height, 1.45 ft).

1924-56: Maximum discharge, 6,600 cfs Sept. 1, 1950 (gage height, 9.95 ft); minimum, 

8.0 cfs Oct. 8, 9, 1939.

Remarks. Records good except those for periods of ice effect, backwater from aquatic 

vegetation, or fragmentary or no gage-height record, which are fair.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect or backwater 

from aquatic vegetation (gage height, in feet, and discharge, in cubic 

feet per second)

Oct. 18 to Sept. 30

1.4 

1.7

2.1 

2.5

110

208

3.0 390

4.0 800

5.0 1,280

6.0 1,850

1.5 

1.8 

2.1 

2.5 

3.0

114

207

352

4.0 

5.0 

6.0 

7.0 

9.0

720

1,170

1,780

2,610

4,990

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

27

25

22

20

20

117

239

180

154

95

66

54

46

44

110

1,180

1.740

*947

596

434

346

300

259

261

438

396

424

*330

285

461

1,240

10,856

350

1.79

2.06

Nov.

780

546

458

616

508

420

372

340

309

285

306

300

259

*446

508

571

600

458

406

382

355

336

330

438

375

327

300

294

b245

b250

12,100

403

2.06

2.30

Dec.

b230

b225

237

715-

845

560

b400

392

365

b310

b290

b300

b280

b250

b260

b!95

b220

b220

*b215

b!65

b!50

b!60

b!60

168

234

b250

b205

b!65

b!50

b!45

bl40

8,601

277

1.41

1.63

Jan .

b!35

b!30

b!40

156

b!50

b!40

bl!8

b96

blT?

133

250

330

309

242

231

215

b!95

b!65

*b!55

blSO

b!45

b!40

b!40

b!35

b!30

b!25

b!24

bl!8

118

124

bl!6

4,971

160

0.816

0.94

Feb.

bl!4

bllO

bl!2

blOO

108

110

110

116

122

124

122

133

144

*133

140

b!35

bl!8

160

200

180

b!55

bl30

b!40

b!30

188

402

420

359

b290

4,805

166

0.847

0.91

Mar.

b290

330

476

bSOO

b460

424

1,670

2.440

2,000

*1,400

1,200

1,340

1,100

1,010

832

b600

b440

b620

b540

b490

b440

b410

402

b370

b320

343

324

297

294

288

285

21,935

708

3.61

4.16

Apr.

276

309

599

1,850

3,960

*4 . 110

3,520

2,640

1,890

1,510

*1,480

1,720

1,930

1,650

1,910

2,790

2,930

2,170

1,540

1,150

930

917

854

784

656

660

632

704

1,220

1,430

48,721

1,624

8.29

9.24

May

978

732

652

560

518

472

472

382

324

372

396

466

416

362

413

388

396

327

306

294

259

256

303

*315

242

215

218

251

223

210

262

11,980

386

1.97

2.27

June

324

294

402

372

309

271

240

215

204

254

279

245

*192

163

144

127

116

106

92

87

81

80

80

96

90

76

71

68

63

59

5,200

173

0.883

0.99

July

54

53

47

43

57

98

102

78

93

92

c72

c74

cSO

d66

c68

c60

*c54

46

39

42

f91

f!39 "124

76

62

56

56

48

43

39

li

2,068

66.7

0.340

0.39

Aug.

35

34

32

30

29

30

30

29

28

27

27

25

25

28

*27

26

25

24

27

31

39

29

26

35

42

35

29

28

29

29

4_4

934

30.1

0.154

0.18

Sept.

108

145

76

56

44

c38

c38

c40

c35

*c32

29

29

29

31

42

71

108

151

90

122

175

112

166

312

192

a!40

al!2

a96

a90

a87

2,796

93.2

0.476

0.53

Calendar year 1955: Max 3,610 Min 14 Mean 320 Cfsm 1.63 In. 22.19

Water year 1955-56: Max 4,110 Min 20 Mean 369 Cfsm 1.88 In. 25.60

3,330 cfs (7.70 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on 

recorded range in stage, weather records, and records for statlun at Rockdale and Butternut Cr 

Morris.

b Stage-discharge relation affected by ice.

c Backwater from aquatic vegetation.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
SUSQUEHANNA RIVER BASIN 317

Sage Brook near South New Berlin, N. Y.

Location. Lat 42°31'55',' long 75°25'30", on right bank 1^ miles upstream from mouth and 

Z\ miles west of South New Berlin, Chenango County.

Drainage area.--0.70 sq mi.

Records available. November 1932 to September 1956.

Gage.--Water-stage recorder and concrete control with V-notch weir. Datum of gage is 

1,430.17 ft above mean sea level, adjustment of 1912 (levels by New York State Conservation Department).

Average discharge .--23 years (1933-56), 1.08 cfs.

Extremes.--Maximum discharge during year, 25.1 cfs Apr. 4, 16 (gage height, 3.08 ft); minimum, 0.014 cfs Aug. 17 (gage height, 1.11 ft).

1932-56: Maximum discharge, 287 cfs July 22, 1945 (gage height, 5.53 ft), from 

rating curve extended above 17 cfs on basis of computation of peak flow over dam; minimum, 0.0002 cfs Sept. 19, 20, 1939.

Remarks. Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair. This station is operated in connection with a study of the 

effect of reforestation on streamflow. In addition to records of streamflow, records 

of precipitation, temperature, and ground-water levels are collected.

Revisions (water years). WSP 871: Drainage area. WSP 1081: 1934-44.

Rating tables, water year 1955-56, except periods of ic 

height, in feet, and discharge, in cubic feet per

effect 

second)

Ocb. 1 to Nov. 16

1.17

1.21

1.3

1.4

1.5

0.035

.057

.129

.26

.44

1.7 1.01

1.9 2.00

2.0 2.75

2.3 6.20

1.5 

1.7

Nov. 17 to Sept. 3O

4 0.026

.056

.143

.29

.50

1.08

2.OO 

3.75 

6.20 

9.50 

16.5

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0.042

.038

.035

.038

.042

.96

.57

.56

.34

.228

.168

.124

.101

.144

1.21

3.20

2.26

1.23

.84

.65

.55

.47

.41

.51

.85

*.65

.56

.48

.43

2.17

5.95

23.790

0.767

1.10

1.26

Nov.

1.94

1.40

1.38

2.17

1.45

1.17

1.01

.90

*.80

.75

.92

.97

1.00

4.32

2.42

5.67

4.14

2.66

2.13

1.71

1.51

1.35

1.31

1.39

1.16

1.05

.98

.95

.80

.74

50.15

1.67

2.39

2.66

Dec.

O.70

.66

.70

2.0

*2.8

1.8

1.35

1.2

1.08

.98

.88

.84

.78

.76

.70

.68

.64

.62

.58

.52

.56

.52

.48

.52

.80

.54

.47

.41

.41

39

!37

25.74

0.830

1.19

1.37

Jan.

0.35

.33

.33

.35

*.35

.35

.32

.27

.28

.58

1.42

1.45

1.08

.78

.70

.65

.59

.52

.47

.45

.43

.42

.40

.40

.38

.37

.35

.33

.33

.32

.31

15.66

0.505

0.721

0.83

Feb.

0.29

.29

.26

.24

.24

.25

.29

.31

.35

.37

.41

.50

.43

.41

.45

.41

.41

.74

.79

.64

.58

.56

.47

.46

1.77

il

*1.35

1.16

1.02

17.25

0.595

0.850

0.92

Mar.

0.94

1.23

1.5

1.44

1.23

1.3

11.8

"770' 12.0

4.58

3.97

3.23

2.42

2.1

1.65

1.08

1.08

1.22

1.14

1.O6

1.04

1.00

.98

.96

.92

.91

*.86

.84

.82

 82

.79

71.91

2.32

3.31

3.82

Apr.

0.84

T723"

3.91

13.5

15.9

11.6

8.4

5.0

4.08

4.02

4.32

5.58

5. 2O

5.34

7.49

16.0

9.07

6.11

4.44

3.22

3.11

4.89

*4.36

3.32

2.84

3.32

3.34

6.94

9.88

9.08

186.33

6.21

8.87

9.90

May

4.75

3.53

3.12

2.58

2.13

2.00

1.76

1.43

1.27

1.35

1.19

1.61

1.35

1.28

1.23

1.43

1.27

1.08

1.08

.95

.82

*.74

1.27

1.02

.79

.70

.85

.79

.67

.61

.90

45.55

1.47

2.10

2.42

June

2.04

1.44

2.50

1.61

1.31

1.12

.95

.79

.71

.87

.90

.61

.61

.45

.36

.29

.244

.212

.184

.166

.166

.138

.149

.132

.116

.098

.137

*.093

.074

.065

18.532

0.618

0.883

0.98

July

0.053

.047

.039

.037

.27

.178

.138

.098

.092

.088

.077

.070

.080

.103

.060

.066

.050

.039

.034

.130'

.51

.65

*1.06

.75

.40

.28

.205

.198

.184

.172

.148

6.306

0.203

0.290

0.34

Aug.

0.138

.121

.116

.106

.111

.121

.102

.089

.089

.089

.077

.085

.131

.077

.039

.033

.029

.036

.053

.037

*.037

.034

.032

d.035

d.032

d.028

d.026

d.062

d.066

d.047

d.24

2.318

0.075

0.107

0.12

Sept.

dO.25

d.13

d.088

d.72

d.064

d.050

*d.044

.039

.034

.032

.037

.032

.030

.078

.069

.47

.34

.236

.163

.28

.220

.172

.33

.85

.43

.31

.236

.191

.160

.161

5.578

0.186

0.266

0.30

Calendar year 1955: Max 13 Mln 0.009 Mean 1.O2 Cfsm 1.46 In. 19.70

Water year 1955-56: Max 16.0 Mln 0.026 Mean 1.28 Cfsm 1.83 In. 24.92

Peak discharge (base, 21 cfs). Mar. 7 (5:15 a.m.) 21.0 cfs (2.95 ft); Apr. 4 (5:15 p.m.) 25.1 cfs 

(3.08 ft); Apr. 16 (10:15 a.m.) 25.1 cfs (3.08 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basia of weather records and records for Cold 

Spring Brook at China.

Note.--Stage-discharge relation affected by ice Nov. 29 to Jan. 2, Jan. 7-9, 12-15, 18, 19, 23, 

28, Jan. 30 to Feb. 14, Feb. 16-18, 20-24, Feb. 26 to Mar. 1, Mar. 3, 6, 9, 14-25, 27, 28, Apr. 7, 8 

(no gage-height record Nov. 29 to Dec. 5, Dec. 7-12, 16-26, Dec. 31 to Jan. 2, Feb. 4-13, 26, 27).
318 SUSQUEHANNA RIVER BASIN

Butternut Creek at Morris, N. Y.

Location. Lat 42°32'45", long 75°14'20", on right bank 15 ft upstream from highway 

bridge at Morris, Otsego County, and 1,100 ft upstream from Calhoun Creek.

Drainage area. 59.6 sq mi.

Records available. June 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,096.51 ft above mean sea level (Corps of 

Engineers benchmark).

Average discharge.--18 years, 97.7 cfs.

Extremes.--Maximum discharge during year, 1,960 cfs Apr. 5 (gage height, 6.54 ft); minimum, 3.9 cfs Oct. 5 (gage height, 1.70 ft); minimum daily, 4.6 cfs Sept. 12, 13.

1938-56: Maximum discharge, 3,200 cfs Sept. 1, 1950 (gage height, 7.76 ft); minimum daily, 1.3 cfs Sept. 24, 1939.

Remarks.--Records excellent except those for periods of ice effect, which are good. 

Diurnal fluctuation at low flow caused by mill above station.

Revisions (water years). WSP 921: 1939.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.7

1.8

1.9 

2.1 

2.4 

3.0

Oct. 1 to Apr. 5

131

Apr. 6 to Sept. 30

238

391

853

1,520

2,010

1.7

1.8

1.9 

2.1 

2.4

4.0

6.7

11

23

50

136

242

397

857

1,520

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Cf sm

In.

Oct.

6.7

6.5

6.0

16

7.0

73

78

59

43

36

27

21

19

20

74

664

687

304

202

152

127

106

95

111

185

137

114

106

*93

313

4,076.2

131

2.20

2.54

Nov.

186

156

144

283

171

147

137

123

106

102

114

108

93

270

189

297

*305

207

186

163

156

136

133

140

116

108

102

105

bSO

b82

4,645

155

2.60

2.90

Dec.

80

75

72

306" 360

191

146

137

129

b!08

bl06

108

96

87

89

b76

b64

b72

b74

*b54

b52

b56

56

50

81

b68

b60

b47

b49

b46

b42

3,037

98.0

1.64

1.90

Jan.

b39

b45

b54

47

45

43

b34

b29

b44

58

143

b!70

b!35

blOO

b86

b94

85

b70

*b64

b68

b62

54

71

b60

b50

b48

b48

b45

b40

54

46

2,031

65.5

1.10

1.27

Feb.

b40

b43

41

b33

35

43

43

41

41

41

34

47

52

*42

46

b43

b38

63

77

69

b58

b50

b54

b52

89

b!80

145

121

b!02

1,763

60.8

1.02

1.10

Mar.

blOO

120

163

169

144

140

830

1.110

*742

*481

435

467

350

316

258

b!90

b!75

b200

171

155

140

132

130

b!20

b!08

114

104

96

92

93

.88.

7,933

256

4.30

4.95

Apr.

88

105

219

850

1.550

*1,220

967

609

469

*412

433

526

526

485

627

932

738

536

401

308

256

312

289

255

208

226

208

£52

421

14,967

499

8.37

9.34

May

302

24l

222

193

173

162

151

121

110

127

114

139

119

111

108

125

118

101

94

94

87

76

*89

79

65

53

61

73

57

45

67

3,677

119

2.00

2.29

June

104

74

T06" 150

89

81

70

64

56

68

61

49

*43

45

50

35

36

37

31

28

26

25

il

27

30

24

23

22

25

17

1,513

50.4

0.846

0.94

July

10

20

17

8.3

26

47

26

15

35

34

18

27

23

21

19

20

*22

19

17

17

40

51

57

40

33

27

27

15

17

22

19

789.3

25.5

0.428

0.49

Aug.

17

13

8.1

8.9

12

19

15

6.3

6.7

18

6.0

779

18

13

*12

12

9.5

7.7

7.3

19

13

8.1

6.2

18

7.1

7.5

16

16

25

14

15

382.3

12.3

0.206

0.24

Sept.

13

14

10

18

*11

5.4

16

5.4

6.0

16

14

4.6

4.6

16

6.0

33

43

31

23

64

38

24

95

206

100

68

53

46

45

41

1,070.0

35.7

0.599

0.67

Calendar year 1955: Max 1,070 Mln 3.1 Mean 100 Cfsra 1.68 In. 22.86

Water year 1955-56: Max 1,550 Mln 4.6 Mean 125 Cfsra 2.10 In. 28.63

Peak discharge (base, 1.400 efs).--Mar. 8 (3:45 p.m.) 1,440 cfs (5.88 ft); Apr. 5 (9 p.m.) 1,960 

fs (6.54 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SUSQUEHANNA RIVER BASIN 

Unadilla River at Rockdale, N. Y.

319

Location.--Lat 42°22'35", long 75°24'20", on right bank 400 ft downstream from highway 

bridge at Rockdale, Chenango County, and three-quarters of a mile downstream from Kent 

Brook.

Drainage area. 518 sq ml.

Records available. November 1929 to September 1933, January 1937 to September 1956.

Gage.--Water-stage recorder. Datum of gage Is 992.11 ft above mean sea level (levels by 

Corps of Engineers). Prior to Sept. 30, 1933, wire-weight gage at bridge 400 ft upstream at datum 0.73 ft higher.

Average discharge.--22 years (1930-33, 1937-56), 839 cfs.

Extremes.--Maximum discharge during year, 13,100 cfs Apr. 6 (gage height, 11.54 ft); minimum, 56 cfs Oct. 4; minimum gage height, 3.73 ft Aug. 13.

1929-33, 1937-56: Maximum discharge, 17,400 cfs Dec. 31, 1942 (gage height, 12.98 

ft); minimum dally, 33 cfs Sept. 25, 26, 1939.

Remarks. Records good except those for periods of Ice effect, backwater from weeds, 

fragmentary gage-height record, or shifting control, which are fair.

Revisions (water years).--WSP 711: 1930(M). WSP 821: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect, shifting 

control, or backwater from weeds (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Mar. 8 Mar. 8 to Sept. 3O

3.5 

3.7 

3.9 

4.1 

4.5

83

144

238

525

5.0

6.0

8.0

10.0

950

1,990

5,190

8,900

3.6 

3.8 

4.1 

4.5 

5.0

61

110

231

484

905

6.O 

8.0 

10.0 

11.5

2,100

5,420

9,300

13,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

64

62

60

58

70

155

640

5OO

440

290

210

170

150

135

360

2,250

4.260

*3,180

1,700

1,220

977

831

729

686

1,090

1,040

995

874

746

fl,250

f2,710

27,902

900

1.74

2.00

Nov.

2,090

1,440

1,220

1,740

1,590

1,240

1,090

995

908

831

865

924

797

1,520

1,770

1,980

*2.460

1,680

1,410

1,290

1,180

1,080

1,010

1,170

1,080

933

856

831

738

600

37,318

1,244

2.40

2.68

Dec.

600

580

652

1,690

2.640

1,700

1,170

1,100

1,040

9OO

820

831

797

704

738

618

640

660

620

480

400

420

*420

500

6OO

640

560

460

430

410

400

24,220

781

1.51

1.74

Jan.

380

380

410

430

415

392

330

270

350

390

856

1.290

1,160

860

760

720

640

540

480

480

460

438

420

410

380

360

*360

350

340

360

350

15,761

508

0.981

1.13

Feb.

330

340

340

290

310

320

320

328

335

349

349

400

453

*390

420

400

350

520

754

640

520

420

450

430

660

1,460

1,430

1,190

950

15,468

533

1.03

1.11

Mar.

822

1,020

1,480

1,720

1,420

1,350

5,200

eB.44O

*8,050

4,860

3,530

*3,870

3,180

2,760

2,330

1,760

1,100

1,500

1,400

1,300

1,180

1,120

1,120

1,020

851

925

860

770

752

734

716

67,140

2,166

4.18

4.82

Apr.

691

7§T

1,700

5,170

11,600

* 12. 600

10,800

8,10O

*5,200

4,020

3,740

4,040

4,630

4,090

4,340

6,210

8,090

6,O8O

4,080

3,020

2,400

2,630

2,450

2,400

1,930

1,850

1,850

1,850

2,730

3,870

132,958

4,432

8.56

9.55

Hay

2.970

2,100

1,900

1,640

1,510

1,320

1,330

1,120

935

925

1,060

1,080

1,160

975

975

985

1,060

896

806

788

*708

640

662

f788

f640

f552

f537

f584

f568

T492

f568~

32,294

1,042

2.01

2.32

June

f905

f806

f 1,100

f 1.150

842

716

632

560

514

552

592

584

477

42O

595

554

516

*292

275

255

256

251

226

231

248

226

217

212

197

188

13,925

464

0.896

l.OO

July

170

155

145

135

170

260

290

240

200

250

225

2OO

200

250

195

175

160

145

*150

150

225

500

580

570

260

255

195

175

145

135

130

6,755

218

0.421

0.49

Aug.

120

110

104

92

88

88

94

88

76

74

78

70

70

94

*84

74

72

70

70

70

82

86

74

92

100

94

80

80

96

124

TT?

2,708

87.4

0.169

0.19

Sept.

135

195

195

135

116

104

100

100

94

88

88

*88

80

78

96

250

350

350

300

380

410

540

320

1, 180

820

520

400

350

290

260

8,172

272

0.525

0.59

Calendar year 1955: Max 8,59O Mln 45 Mean 835 Cfsm 1.61 In. 21.87

Water year 1955-56: Max 12,6OO Hln 58 Mean 1,051 Cfsm 2.O3 In. 27.62

Peak discharge (base. 7,5oo efs). Mar. 8 (6:45 p.m.) 9,420 cfs (10.O6 ft); Apr. 6 (7:30 a.m.) 

13,10O cfs (11754 ft); Apr. 17 (10 a.m.) 8,490 cfs (9.62 ft).

* Discharge measurement made on this day.

e Shifting-control method used.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note. Stage-discharge relation affected by Ice Nov. 3O to Dec. 2, Dec. 9-11, Dec. 17 to Jan. 3, 

Jan. 7-10, 13-21, Jan. 23 to Feb. 7, Feb. 14-18, 20-25, Mar. 17-23 (doubtful

23).

.. __, --.-. _- - --.-. , --... __ --, - -_, ---. ,~-- gage-height record 

Backwater from weeds Oct. 1-16, July 1 to Sept. 3O (fragmentary gage-height record Oct. 2).
320 SUSQUEHANNA RIVER BASIN

Susquehanna River at Conklin, N. Y.

Location. Lat 42°02'10", long 75°48'10", on left bank at downstream side of highway 

bridge at Conklin, Broome County, three-quarters of a mile downstream from Little 

Snake Creek and 3-j miles downstream from Pennsylvania State line.

Drainage area. 2,240 sq mi, approximately.

Records available. November 1912 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 840.95 ft above mean sea level (levels by 

Corps of Engineers). Prior to Oct. 4, 1914, staff gage at same site and datum.

Average discharge. 43 years (1913-56), 3,658 cfs.

Extremes.--Maximum discharge during year, 39,200 cfs Apr. 7 (gage height, 16.04 ft); minimum, 273 cfs Aug. 28 (gage height, 1.92 ft).

1912-56: Maximum discharge, 61,600 cfs Mar. 18, 1936; maximum gage height, 20.83 ft 

Mar. 22, 1948; minimum discharge, 106 cfs Sept. 16, 1913 (gage height, 1.32 ft).

Remarks. Records excellent except those for periods of ice effect or fragmentary gageheight record, which are good. Diurnal fluctuation at low flow caused by mill several 

miles above station.

Revisions. WSP 696: Drainage area.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

742 

622

546

507

475

1,790

2,850

4,060

3,620

2,810

2,190

1,800

1,460

1,440

5,290

17,100

16,700

*18,700

14,000

*10,300

7,420

5,550

4,760

4,140

4,340

5,230

f4,610

4,020

3,670

7,500

12,000

170,242

5,492

2.45

2.83

Nov.

10,200 

7,600

6,100

5,810

6,760

6,020

5,090

4,480

4,140

3,820

3,790

4,120

4,030

4,070

6,260

8,570

9,960

8,790

7,050

6,250

5,430

*4,930

4,520

f4,460

f4,460

4,020

3,470

3,220

3,110

2,810

163,340

5,445

2.43

2.71

Dec.

2,600 

2,460

2,400

2,820

6,070

7,550

5,660

4,290

3,950

3,930

3,600

5,390

3,230

3,020

2,800

*2,450

2,300

2,250

2,500

2,100

1,500

1,400

1,500

1,800

2,300

2,800

2,700

2, 300

2,000

1,850

1,750

91,030

2,956

1.51

1.51

Jan.

1,700 

1,650

1,650

1,700

1,700

1,600

1,650

1,400

1,500

1,700

2,500

6,000

7,000

4^800

4,000

3,500

3,100

2,900

2,700

2,800

2,600

2,550

2,200

2,050

1,900

1,800

1,700

1,700

*1,750

1,750

80,750

2,605

1.16

1.34

Feb.

1,700 

1,700

1,600

1,600

1,550

1,500

1,700

1,800

1,950

2,200

2,600

3,200

5,600

5,000

3,000

5,500

3,100

5,500

4,670

4,540

5,800

2,900

2,400

2,250

4,000

8,600

9,200

*7,400

6,460

98,620

5,401

1.52

1.64

Mar.

5,040

4,760

6,750

8,520

7,490

9,740

19,100

33,600

32,200

*24,700

17,300

16,000

*14,800

13,000

11,600

9,780

7,680

6,160

6,600

6,200

5,610

5,050

5,010

4,970

4,520

4,120

4,290

4,080

3,810

3,660

3,660

309,800

9,994

4.46

5.14

Apr.

5,680 

4,150

7,100

16,300

30,600

*55,400

38,300

35 500

26,100

19,700

17,800

16,600

16,800

16,600

15,500

17,500

21,700

23, 100

19, 100

15,200

12,500

11,400

11,600

11,800

10,400

9,390

9,080

8,480

8,850

11,000

501,030

16,700

7.46

8.52

May

12,600 

10, 500

8,680

7,680

6,820

6,340

6,010

5,460

4,710

4,400

4,320

4,500

4,420

4,270

3,860

*4,080

4,100

4,540

5,910

3,470

3,260

3,060

2,860

2,720

2,740

2,360

2,250

2,520

2,470

2,550

g,140

145,180

4,619

2.06

2.58

June

2,970 

4,230

5,520

5.900

4,950

3,840

3,420

2,890

2,540

2,410

2,540

2,380

2,250

1,990

1,850

1,650

1,700

1,370

1,310

1,160

*982

1,130

982

1,180

1,090

1,070

990

850

855

807

66,786

2,226

0.994

1.11

July

723 

654

622

580

756

,500

,480

,400

,150

,050

908

848

827

841

1,080

1,080

870

761

688

665

931

1,440

*2,000

2,550

1,980

1,860

1,410

1,120

959

754

706

53,935

1,095

0.489

0.56

Aug.

638 616"

565

536

503

475

418

457

453

*455

409

393

356

584

384

455

451

597

352

564

548

340

332

356

517

552

401

332

344

414

617

15,152

424

0.189

0.22

Sept.

1,050 

1,070

814

694

606

494

471

451

405

418

356

336

329

352

540

578

1,620

*2,540

1,950

2,350

2,610

2,090

1,710

4,500

6,950

4,310

2,820

2,560

2,090

1,840

48,484

1,616

0.721

0.80

Calendar year 1955: Max 22,000 Kin 176 Mean 3,682 Cfsm 1.64 In. 22.30

Water year 1955-56: Max 38,300 Mln 317 Mean 4,700 Cfsm 2.10 In. 28.56

Peak discharge (base. 25,000 cfs).--Mar. 8 (5:45 p.m.) 37,600 cfs (15.68 ft); Apr. 7 (2:45 p.m.) 

59,200 cfs (16704 ft).

* Discharge measurement made on this day.

f Fragmentary gage-hetght record; discharge computed from partly estimated gage heights.

Note.--Stage-discharge relation affected by Ice Dec. 15 to Feb. 18, Feb. 21-28.
SUSQUEHANNA RIVER BASIN 321

Chenango River at Sherburne, N. Y.

Location.--Lat 42°40'45", long 75 0 30'40", on right bank 20 ft downstream from Pratts Bricfee, 

half a mile west of Sherburne, Chenango County, and half a mile downstream from Handsome Brook.

Drainage area. 264 sq mi.

Records available. May 1938 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 1,037.0 ft above mean sea level (furnished 

by U. S. Weather Bureau) . July 22 to Dec. 9, 1953, wire-weight gage or reference point 

and Dec. 10, 1953, to Jan. 26, 1955, water-stage recorder, at temporary site 1| miles 

downstream at different datum, during period of construction of highway bridge.

Average discharge. 18 years, 419 cfs.

Extremes. Maximum discharge during year, 5,890 cfs Apr. 6 (gage height, 9.18 ft); minimum, 

22 cfs Oct. 5 (gage height, 1.865 ft).

1938-56: Maximum discharge, 7,000 cfs Sept. 1, 1950 (gage height, 9.88 ft); maximum 

gage height, 9.99 ft Dec. 30, 1942 (ice jam); minimum discharge, 17 cfs Sept. 25, 1939; 

minimum gage height, 1.865 ft Oct. 5, 1955.

Maximum stage known, 10.6 ft Mar. 18, 1936, from records of U. S. Weather Bureau.

Remarks. Records good except those for periods of ice effect, backwater from aquatic

vegetation, or fragmentary gage-height record, which are fair. Slight diurnal fluctuation at low flow caused by mill several miles above station.

Revisions (water years). WSF 851: 1938(M).

Rating tables, water year 1955-56, except periods of ice effect or backwater from aquatic 

vegetation (gage height, in feet, and discharge, in cubic feet per second)

1.8 

2.0 

2.5 

3.0

42

143

270

4.0

Oct. 7 to Sept. 30

27 5.0

55 6.0

157 7.0

288 8.0

481 9.1

765

1,260

1,640

2,160

2,910

5,570

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

26

24

24

24

.23

158

222

169

134

99

BO

69

62

58

116

805

1,210

789

563

414

320

259

222

216

330

298

314

*271

246

636

2,550

10,531

340

1.29

1.48

Nov.

1,440

1,120

913

864

678

574

516

476

435

401

431

410

370

*636

608

864

960

721

636

591

542

491

472

696

585

531

496

481

b360

344

18,642

621

2.35

2.63

Dec.

334

320

327

1,040

1,180

902

b660

602

574

501

458

440

418

366

374

b320

b360

b340

*b320

b270

b245

b220

b230

b260

334

355

b300

b270

b250

b230

b220

13,020

430

1.59

1.83

Jan.

b200

b!90

b220

237

f222

204

b!85

b!60

b!70

b235

344

382

b340

b270

b260

b250

b220

b200

*b!85

b!75

b!70

b!65

b!60

b!55

b!50

b!45

b!40

b!35

b!30

b!25 

b!25

6,249

202

0.765

0.88

Feb.

b!20

bl!6

bllO

b!04

bTl6

b!35

b!45

b!55

169

184

186

216

*209

184

232

184

b!45

216

282

256

222

184

201

209

307

f631

f591

491

b380

6,680

230

0.871

0.94

Mar.

341

538

886

886

727

765

2,160

5.060

2,590

*1,9BO

1,740

1,820

1,590

1,500

1,370

1,170

b940

1,080

bl,040

913

825

789

813

759

619

666

614

547

553

521

511

34,313

1,107

4.19

4.83

Apr.

491

591

1,100

2,220

*5,07Q

*5,010

3,970

3,150

2,550

2,080

*1,940

1,970

2,030

1,860

1,920

2,550

2,840

2,220

1,800

1,490

1,320

1,300

1,210

1,130

970

960

908

975

1,350

1,490

58,465

1,949

7.38

8.24

May

1.220

1,060

1,020

869

801

721

690

558

486

536

521

777

654

569

501

506

486

427

406

370

320

298

355

*352

294

265

256

265

243

237

285

16,348

527

2.00

2.30

June

385

341

410

348

310

279

246

224

211

214

246

194

*169

148

130

116

110

104

94

90

86

84

82

90

84

76

72

70

68

66

5,147

172

0.652

0.73

July

62

60

56

54

72

102

90

76

130

96

86

90

64

94

90

82

*78

72

66

72

140

160

135

114

96

82

76

66

62

60

58

2,661

85. B

0.325

0.37

Aug.

56

54

50

49

48

47

49

48

46

44

43

42

40

41

*40

39

39

39

44

43

41

39

37

48

44

42

40

39

40

40

56

1,367

44.1

0.167

0.19

Sept.

66

62

56

50

48

47

49

49

48

*45

44

44

il

44

52

74

96

102

90

180

150

125

235

259

176

146

125

114

106

102

2,827

94.2

0.357

0.40

Calendar year 1955: Max 2,660 Min 22 Mean 400 Cfsm 1.52 In. 20.58

Water year 1955-56: Max 5,070 Min 23 Mean 482 Cfsm 1.83 In. 24.82

Peak discharge (base. 3,500 efs).--Apr. 6 (12:45 a.m.) 5,890 cfs (9.18 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note.--Backwater from aquatic vegetation June 18 to Sept. 23.
322 SUSQUEHANNA RIVER BASIN

Canasawacta Creek near South Plymouth, N. Y.

Location. Lat 42"33'50", long 75°33'10", on right bank 1.4 miles southeast of South Plymouth, Chenango County, 2 miles northwest of Norwich, 2.8 miles downstream from East 

Branch, and 4.2 miles upstream from mouth.

Drainage area.--58.3 sq mi.

Records available.--September 1945 to September 1956.

Gage.--Water-stage recorder. Concrete control since Aug. 6, 1953. Datum of gage is 

1,077.80 ft above mean sea level (levels by Corps of Engineers).

Average discharge.--11 years, 107tcfs.

Extremes.--Maximum discharge during year, 3,350 cfs Apr. 4 (gage height, 5 06 ft)- minimum, T. 2 cfs Oct. 5 (gage height, 1.60 ft).

1945-56: Maximum discharge, 5,910 cfs Sept. 18, 1945 (gage height, 5.33 ft), from 

rating curve extended above 1,900 cfs by logarithmic plotting; minimum, 0.3 cfs July 31 

Aug. 6,7, 1955; minimum gage height, 0.61 ft July 29, 1953, from outside gage reading' 

Revlsions.--Figures of maximum discharge for the water years 1954 and 1955 have been 

revised to 1,320 cfs Feb. 17, 1954 (gage height, 4.15 ft) and 2,440 cfs Mar. 11, 1955 

(gage height, 4.70 ft), superseding those published in WSP 1332 and 1382, respectively.

Remarks.--Records good except those for periods of ice effect or fragmentary or no gageheight record, which are fair. Slight diurnal fluctuation caused by gristmill 

1.8 miles above station.

Revisions (water years). WSP 1141: 1945-47. Revised figures of discharge, in cubic feet 

Per second, for the water years 1954-55, superseding those published in WSP 1332 and 

1382, are given herewith:

Date

1954

Feb. 17

21

22

Mar. 1

2

Apr. 17

May 4

June 2

13

Discharge

780

514

515

205

356

494

530

301

298

Date

1954 -Con.

Dec. 15

18

28

29

30

1955

Mar. 1

2

Discharge

428

442

199

644

589

760

594

Date

1955 -Con.

Mar. 4

5

10

11

12

13

22

23

Discharge

445

433

575

1,420

933

870

668

467

Month

Water year 1953-54.....

Calendar year 1954. ....

Water year 1954-55 .....

Cfs-days

5,228

Maximum

780

357

780

780

1,420

Minimum

30

66

.9 

58

.9

.4

Mean

187

152

63.8

70.8 

179

85.2

89.1

Per square 

mile

3.21

2.61

1.90

1.21 

3.07

1.46

1.53

Runoff In 

Inches

3.33

3.01

2.18

1.22

16.50 

3.54

19.83

7.92

20.73
SUSQUEHANNA RIVER BASIN 323

Canasawacta Creek near South Plymouth, N. Y. Continued

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 4 Apr. 5 to Sept. 30

2.2 

2.4

2.3

3.9

9.0

26

50

89

2.7 

3.0 

3.5 

4.0 

4.5

176

300

600

1,100

1,990

1.7

1.8 

2.0

3.9

8.6

23

2.2 

2.4

Note. Same as preceding 

table above 2.4 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

5.4

4.5

3.9

3.0 3~^

130

69

72

40

26

20

16

14

14

71

238

286

143

102

78

64

54

47

75

162

99

85

*70

63

518

670

3,246.0

105

1.80

2.07

Nov.

305

206

176

163

128

109

94

87

78

72

85

85

72

*f314

191

449

311

221

183

156

134

120

127

163

114

104

96

94

6872-

4,580

153

2.62

2.92

Dec.

68

70

73

494

352

217

150

135

120

102

98

87

81

74

72

60

56

50

44

*30

2830-

34

56

92

84

72

66

62

60

56

3,073

99.1

1.70

1.96

Jan.

52

50

58

62

56

52

44

39

68

114

235

22U

171

120

122

114

80

*56

50

49

47

46

44

42

40

39

37

35

34

33

33

2,242

72.3

1.24

1.43

Feb.

32

31

30

28

29

30

34

40

46

56

80

70

54

62

58

42

66

110

83

SO

47

44

60

120

270

145

114

2,100

72.4

1.24

1.34

Mar.

106

177

250

217

169

163

1,120

1.200

667

441

401

*382

282

259

206

130

120

150

135

130

120

114

108

100

90

90

82

80

78

76

7,721

249

4.27

4.93

Apr.

77

156

353

1,590

«1,750

*1,260

922

568

423

383

*432

547

510

518

698

1,340

839

507

371

277

256

383

356

298

242

277

259

431

723

625

17,321

577

9.90

11.05

May

350

272

264

217

183

180

158

123

104

128

109

191

146

123

102

127

*112

94

96

85

69

62

68

60

48

42

46

48

39

34

66

3,746

121

2.08

2.39

June

130 ~~9~2"

123

89

74

63

53

43

49

58

58

37

*36

26

22

18

17

14

12

11

9.8

9.4

9.3

12

10

8.9

9.8

9.8

8.2

7.2

1,119.4

37.3

0.640

0.71

July

6.6

6.4

5.2

36~~ 4.4

39

21

15

52

31

26

25

17

15

13

15

*13

11

8.9

13

75

64

65

40

30

26

21

a!8

a!5

al2

12

751.5

24.2

0.415

0.48

Aug.

10

9.5

8.2

7.2

6.6

7.2

7.7

7.3

5.7

5.1

5.2

4.1

5 .3

*10

8.3

6.4

5.6

5.5

8.2

6.9

6.4

5.5

5.2

2012"

8.9

7.3

7.4

9.8

9.3

18

249.8

8.06

0.138

0.16

Sept.

39

21

18

14

*11

9.8

10

8.9

8.3

6.9

7.1

6.4

6 .4

12

24

78

54

45

32

142

71

50

167

173

100

78

62

49

42

37

1,382.8

46.1

0.791

0.88

Calendar year 1955: Max 1,420 Min 0.4 Mean 96.5 Cfsm 1.66 In. 22.45

Water year 1955-56: Max 1,750 Min 3.0 Mean 130 Cfsm 2.23 In. 30.32

Peak discharge (base, 2,000 cfs).--0ct. 30 (9 p.m.) 2,030 cfs (4.52 ft); Apr. 4 (5:30 p.m.) 3,350

cfs (5.06 ft); Apr. 16 (1:30 p.m.) 2,140 cfs (4.57 ft).

Discharge measurement made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on recorded range in stage and weather records.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 2, Dec..7-11, Dec. 14 to Jan. 12, 

Jan. 14 to Feb. 19, Feb. 21-26, Feb. 28 to Mar. 1, Mar. 16-28 (fragmentary gage-height record Feb. 4,
324 SU3QUEHANNA RIVER BASIN

Chenango River at Greene, N. Y.

Location. Lat 42°19'30", long 75°46'15", on left bank 1,700 ft downstream from highway 

bridge in Greene, Chenango County, and half a mile downstream from Birdsall Creek.

Drainage area.--598 sq mi.

Records available. February 1937 to September 1956.

Gage. Water-stage recorder. Datum of gage is 892.58 ft above mean sea level (levels by 

Corps of Engineers).

Average discharge.--19 years, 930 cfs.

Extremes. Maximum discharge during year, 13,300 cfs Apr. 6 (gage height, 15.18 ft); minimum, 84 cfs Oct. 5; minimum gage height, 2.05 ft Sept. 14.

1937-56: Maximum discharge, 18,900 cfs Dec. 31, 1942 (gage height, 18.33 ft); minimum, 37 cfs Sept. 20, 1939.

Remarks. Records good except those for periods of ice effect or backwater from weeds or 

aquatic vegetation, which are fair.

Rating tables, water year 1955-56, except periods of ioe effect or backwater 

from weeds or aquatic vegetation (gage height, in feet, and discharge, in 

cubic feet per second)

Oct. 1 to Apr Apr. 5 to Sept. 30

2.0 

2.5 

3.0 

3.5

85

113

149

271

437

637

4.0 860

5.0 1,380

7.0 2,760

9.0 4,500

13.0 9,370

1.8 109

2.0 143

2.5 270

3.0 431

4.0 846

5.0 1,380

7.0 2,800

11.0 6,800

15.0 12,900

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

cll4 cioe

c96

088

086

0290

c860

C700

C540

C380

0280

0225

0190

0180

c350

1,510

2,230

1,990

1,310

1,010

823

693

599

542

855

819

715

654

*587

933

3.650

23,427

756

1.26

1.46

Nov.

5,840

2,330

1,700

1,630

1,360

1,170

1,040

966

889

819

851

942

823

1,410

1,710

2,060

*2,690

1,890

1,520

1,360

1,220

1,120

1,030

1,220

1,150

996

927

889

819

698

41,289

1,376

2.30

2.57

Dec.

684

650

667

1,430

2,630

1,830

1,310

1,190

1,090

996

860

855

809

728

750

660

720

740

720

680

640

620

640

660

740

820

*680

560

520

540

520

26,959

870

1.45

1.68

Jan.

430

410

440

460

500

450

400

360

340

520

1,000

1,200

960

720

660

660

560

 500

460

430

410

390

380

360

350

340

320

310

300

290

0 Qr)

15,200

490

0.819

0.95

Feb.

280

270

260

240

250

280

300

320

360

410

440

560

580

500

540

460

410

534

773

702

616

500

540

580

720

1,67.0

1,610

 1,310

1,090

17,105

590

0.987

1.06

Mar.

900

1,090

1,690

1,970

1,640

1,720

6,150

9,160

 8,680

5,860

4,230

4,090

3,520

3,100

2,740

2,220

1,600

1,900

1,850

1,650

1,500

1,400

1,400

1,340

1,190

1,230

1,140

1,050

1,030

1 '966 OOC

79,026

2,549

4.26

4.91

Apr.

942

1,080

2,280

5,260

*11,400

12,500

11,100

8,570

6,140

4,920

4,400

 4,480

4,810

4,300

4,420

5,700

7,220

5,760

4,260

3,200

2,600

2,940

2,770

2,700

2,180

2,080

2,050

2,040

2,930

3,810

136,642

4,621

7.73

8.62

May

,020

,240

,150

,830

,670

,480

,470

,260

,100

,070

,150

,250

,430

,170

,060

,000

* ,090

942

856

841

740

651

625

699

617

547

543

577

532

480

588

34,678

1,119

1.87

2.16

June

1,210

1,060

1,160

1,010

807

699

609

532

484

517

558

498

421

577

358

507

279

258

*245

226

215

218

226

226

220

202

207

218

196

184

13,705

457

0.764

0.85

July

172

168

163

159

228

348

320

250

210

280

250

230

225

225

215

205

190

180

170

185

350

560

1,080

*640

440

470

360

300

260

230

210

9,273

299

0.500

0.58

Aug.

205

195

180

170

160

155

155

155

150

150

145

140

135

 150

150

140

135

130

130

125

135

130

124

140

165

160

140

140

175

300

400

5,064

163

0.275

0.31

Sept.

340

290

235

195

170

155

150

145

145

135

130

130

122

*T24

140

480

600

500

400

520

600

470

480

1,560

916

642

517

438

397

371

11,297

377

0.630

0.70

Calendar year 1955: Max 7,840 Min 49 Mean 898 Cfsm 1.50 In. 20.39

Water year 1955-56: Max 12,300 Min 86 Mean 1,136 Cfsm 1.90 In. 25.85

Peak discharge (base, 6,800 cfs). --Mar. 8 (about 10 p.m.) about 10,300 cfs (about 13.64 ft);

Apr. 6 (1:45 a.m.) 13,300 cfs (15.18 ft); Apr. 17 (6:15 a.m.) 7,590 cfs (11.63 ft).

* Discharge measurement made on this day.

c Backwater from weeds.

T uiscnarge measuremenu maae on tnis aay. 

c Backwater from weeds.

Note.--Stage-discharge relation affected by ice Dec. 11, Dec. 16 to Feb. 17, Feb. 22-25, Mar. 1 

17-21 ?-21. Backwater from aquatic vegetation July 7 to Sept. 23.
SUSQUEHMNA RIVER BASIN 325

Genegantslet Creek at Smithville Plats, N. Y.

Location. Lat 42°23'40", long 75°48'15", on left bank 530 ft downstream from highway 

bridge at Smithville Plats, Chenango County, and 1,500 ft downstream from Pond Brook.

Drainage area. 83.1 sq mi.

Records available . June 1938 to September 1956.

Gage. Water-stage recorder.

Average discharge. 18 years, 142 cfs.

Extremes. Maximum discharge during year, 2,840 cfs Apr. 5 (gage height, 8 70 ft)- minimum, 6.8 cfs Aug. 23 (gage height, 2.195 ft).

i 1938-56: Maximum discharge, 5,890 cfs Dec. 30, 1942 (gage height, 10.4 ft, from 

floodmark on outside gage), from rating curve extended above 2,800 cfs by logarithmic 

plotting; minimum, 0.48 cfs (discharge measurement) Sept. 19, 1939 (gage height, 1.73 ft).

Remarks.--Records excellent except those below 8 cfs, which are good, and those for periods of ice effect or backwater from aquatic vegetation or debris, which are fair. 

Diurnal fluctuation at low and medium flow caused by gristmill 800 ft above station.

Revisions (water years).--WSP 851: 1938(M).

Rating tables, water year 1955-56, except periods of ice effect or backwater from aquatic

vegetation or debris (gage height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Mar. 7, 8)

2.2

2.3

2.4 

2.7 

3.0 

3.5

Oct. 1 to Mar. 8

6.1

11

18

48

93

189

4.0 

5.0 

6.0 

7.0 

9.0

305

615

985

1,420

2,720

2.2

2.3

2.4 

2.7 

3.0 

3.5

Mar. 8 to Sept. 16

7.0

12

18

48

93

189

4.0 

5.0 

6.0 

7.0 

8.5

305

615

990

1,510

2,650

Sept. 16-30

2.7 46

3.0 87

3.5 1S5

4.0 305

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

15 

12

9.6

12

8.4

244

201

197

130

83

58

43

36

36

141

485

472

289

195

143

111

90

73

77

163

124

98

81

*72

445

1,070

5,214.0

168

2.02

2.33

Nov.

448 

268

208

204

161

134

115

104

91

83

106

126

109

364

311

628

648

353

260

214

183

*159

151

195

157

136

122

117

88

b90

6,333

211

2.54

2.83

Dee.

b74 

b74

79

346

578

237

177

155

141

119

111

102

90

b72

b84

b72

b68

b68

b64

b58

b54

b52

b52

b58

b74

76

*67

58

56

57

54

3,227

104

1.25

1.44

Jan.

53 

b50

52

50

48

45

43

b40

b45

57

193

277

228

171

153

130

106

*b78

b66

68

64

60

b56

b54

b52

b49

49

45

44

45

46

2,517

81.2

0.977

1.13

Feb.

b44 

b44

b43

b36

b42

44

49

49

53

54

58

73

86

b76

79

76

b68

107

120

100

b88

b78

b74

b72

132

272

246

*202

b!65

2,630

90.7

1.09

1.18

Mar.

b!45 

175

234

262

219

290

1,790

2,010

1,230

723

566

*534

407

357

289

b!75

b210

b225

b!95

b!70

b!60

b!55

b!40

b!30

b!25

122

115

b!06

104

104

104

11,571

373

4.49

5.18

Apr.

104 163"

553

1,330

*2.290

1,840

1,600

1,000

671

564

605

*750

779

660

800

1,360

1,060

674

511

366

289

392

398

343

265

310

289

359

691

759

21,775

726

8.74

9.74

May

427 

313

327

255

217

195

185

147

122

145

132

198

187

159

126

151

*153

124

117

106

86

73

73

67

54

47

63

74

58

49

c!30

4,560

147

1.77

2.04

June

395 

259

324

208

155

122

93

72

64

58

49

40

34

28

24

21

21

*18

16

15

15

16

18

23

17

15

18

19

15

14

2,186

72.9

0.877

0.98

July

12

11

11

10

39

54

38

25

34

33

31

27

23

22

19

17

16

14

12

19

95

181

293

*150

93

93

62

46

35

29

24

1,568

50.6

0.609

0.70

Aug.

21 

19

17

15

14

14

15

14

12

10

10

9.6

9.6

14

12

11

*9.3

8.6

9.0

9.3

8.8

7.8

7.0

24

19

13

11

14

21

16

30

425.0

13.7

0.165

0.19

Sept.

108 

48

37

25

19

17

21

17

15

13

12

12

 11

12

28

216

194

142

94

213

148

101

123

261

TeT

117

86

69

57

52

2,435

81.2

0.977

1.09

Calendar year 1955: Max 1,480 Mln 3.2 Mean 129 Cfsm 1.55 In. 21.13

Water year 1955-56: Max 2,290 Min 7.0 Mean 176 Cfsm 2.12 In. 28.88

Peak discharge (base 2,600 cfs). Apr. 5 (9 p.m.) 2,840 cfs 

* Discharge measurement made this day.

b Stage-discharge relation affected by ice. 

c Backwater from debris. 

Note.--Backwater from aquatic vegetation and/or debris Oct. 1-5. 

tion Sept. 4-14.

3.70 ft).

Backwater from aquatic vegeta505690 O-59-Z2
326 SUSQUEHANNA RIVER BASIN 

Shackham Brook near Truxton, N. Y.

Location. Lat 42°46'00", long 76°01'10", on right bank a quarter of a mile downstream 

from small tributary, three-quarters of a mile upstream from mouth, and 5 miles north 

of Truxton, Cortland County.

Drainage area. 3.12 sq mi.

Records available. November 1932 to September 1956.

;e. Water-stage recorder and concrete control with V-notch weir. Datum of gage is 

,281.52 ft above mean sea level, adjustment of 1912 (levels by Corps of Engineers).

Average discharge. 23 years (1933-56), 5.75 cfs.

Extremes. Maximum discharge during year, 142 cfs Apr. 4 (gage height, 3.54 ft); minimum, 

0.107 cfs Aug. 23; minimum gage height, 1.30 ft Oct. 5, Aug. 23.

1932-56: Maximum discharge, 487 cfs June 3, 1947, from rating curve extended above 

170 cfs by logarithmic plotting; maximum gage height, 4.45 ft June 24, 1940; minimum 

discharge, 0.042 cfs Sept. 4, 1953 (gage height, 1.20 ft), except during period of 

dredging Sept. 10, 1954, when discharge was 0.006 cfs (gage height, 1.09 ft).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

wETch are fair. This station is operated In connection with a study of the effect of 

reforestation on streamflow. In addition to records of streamflow, records of precipitation, temperature, and ground-water levels are collected.

Revisions (water years ). WSP 851: 1933-36.

Rating tables, water year 1955-56, except periods of ice effect (gage height, 

In feet, and discharge, in cubic feet per second)

Oct. 31 to Sept. 30

1.3 0.113

1.4 .232

1.5 .40

1.6 .65

1.8 1.43

2.0 2.78

2.3 6.30

2.6 13.3

2.8 21.5

2.0

0.107

.224

.40

.65

1.46

3.02

2.3 

2.6 

2.8 

3.0 

3.3

6.47

12.5

20.3

35.5

79.0

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

0.150

.140

.134

.128

*.125

9.34

3.37

5.98

2.87

2.15

1.76

1.53

1.33

1.6

4.22

13.5

18.6

8.97

6.15

4.55

3.75

3.34

2.96

3.26

3.97

4.16

3.64

3.24

3.05

11.6

14.6

144.165

4.65

1.49

1.72

Nov.

9.50

*7.40

6.47

5.80

4.71

4.27

3.83

3.52

3.22

3.02

3.22

3.02

2.74

5.91

4.60

14.2

9.70

7.57

6.76

6.06

5.42

4.60

7.80

7.75

6.33

5.93

5.18

5.42

4.5

4.1

172.55

5.75

1.84

2.06

Dec.

3.7

3.62

4.12

20.4

15.2

10.4

8.2

7.07

6.47

5.54

4.82

4.49

4.16

*3.8

3.8

3.7

3.4

3.22

3.0

2.7

3.0

2.8

2.6

277

4.2

3.5

3.2

3.0

3.2

3.12

3.02

156.15

5.04

1.62

1.86

Jan.

2.6

2.45

2.6

2.65

2.56

2.47

2.05

1.9

2.0

2.6

4.4

4.16

3.83

3.6

3.4

3.3

3.1

*2.9

2.7

2.6

2.5

2.45

2.35

2.35

2.25

2.05

2.0

1.9

2.05

2.0

1.85

81.62

2.63

0.843

0.97

Feb.

T78~ 1.75

1.75

1.75

2.25

2.2

2.7

2.6

2.9

2.83

2.74

3.02

3.12

2.9

3.22

2.9

2.7

4.0

3.72

3.52

3.1

2.7

*2.6

2.7

10.4

10.6

7.93

7.0

5.8

107.20

3.70

1.19

1.28

Mar.

5.8

6.86

7.40

7.07

6.33

7.28

42.5

51.6

26.2

17.3

16.1

14.3

11.9

10.6

*9.0

6.6

6.4

7.0

6.0

5.6

5.2

4.9

4.71

4.5

4.0

4.1

4.0

3.9

3.83

3.72

3.52

318.22

10.3

3.30

3.79

Apr.

5.62

5.2

14.2

69.2

67.4

54

43

28

20

16

19.2

25.2

24.1

27.1

46.9

73.2

36.5

24.8

*18.8

14.3

13.7

16.0

15.2

13.1

11.9

14.3

15.0

33.3

42.4

32.1

837.72

27.9

8.94

9.99

May

18.8

15.2

13.1

10.9

9.30

9.50

7.93

6.47

5.80

8.82

6.33

13.7

9.50

8.12

6.91

9.21

*7.40

6.33

6.06

4.82

4.27

3.94

5.83

4.27

3.62

3.42

3.52

3.42

3.02

2.83

1372~

235.54

7.60

2.44

2.81

June

11.8

8.36

8.79

6.06

5.18

4.16

3.62

3.22

3.02

2.65

*2.31

1.99

1.78

1.46

1.24

1.14

1.02

.87

.77

.69

.80

.70

.77

.72

.60

.51

.55

.47

.41

.56

76.02

2.53

0.811

0.91

July

0.34

.33

.28

.26

.58

.56

.41

.31

1.62

.69

.66

*.71

.70

.77

.55

.51

.43

.38

.34

.45

1.02

1.17

1.63

1.12

.73

a. 60

a.52

a. 42

a. 34

a. 30

a. 26

18.99

0.613

0.196

0.23

Aug.

ao.25

a. 23

.224

.203

.196

.204

.224

.203

.170

.164

.152

.152

. 168

.183

.152

.135

.125

7142"

.214

*.158

.146

.130

.125

.47

.158

.130

.125

.130

.130

.125

.90

6.218

0.201

0.064

0.07

Sept.

0.26

.26

.203

.158

.140

.28

.27

.223

.217

*.170

.158

.152

.140

.146

.140

.50

.35

.30

.31

1.04

.49

.31

1.87

1.04

.60

.45

.38

.35

.33

.31

11.547

0.385

0.123

0.14

Calendar year 1955: Max 90.8 Min 0.074 Mean 4.71 Cfsm 1.51 In. 2O.51

Water year 1955-56: Max 73.2 Mln 0.123 Mean 5.92 Cfsm 1.90 In. 25.83

Peak discharge 

(3.50 ft); Ap

(base. 88 cfs). --Apr. 4 (5 .m.) 

ft).

142 cfs (3.54 ft); Apr. 16 (9:30 a.m.) 129 cfs

29 (5:45 p.m. ) 88.2 cfs (3.34

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

Albright Creek at East Homer.

Note. Stage-discharge relation affected by ice Nov. 29 to Dec. 1, Dec. 6, 1, 14-17, 19-29, 

Jan. 1-3, 7-11, Jan. 14 to Feb. 9, Feb. 14, 16-18, 21-26, Feb. 28 to Mar. 1, Mar. 14-22, 24-28, 

Apr. 2, 6-10 (no gage-height record Dec. 20, 21).
SUSQUEHANNA RIVER BASIN 327

Albrlght Creek at East Homer, N. Y.

Location. Lat 42°40'10", long 76°06'15", on left bank a quarter of a mile upstream from 

highway bridge in East Homer, Cortland County, and half a mile upstream from mouth.

Drainage area. 7.08 sq ml.

Records available. October 1938 to September 1956. Prior to October 1947, published as 

East Homer Creek at East Homer.

Gage. Water-stage recorder and concrete control. 

Average discharge. 17 years (1939-56), 12.4 cfs.

Extremes.--Maximum discharge during year, 653 cfs Apr. 4 (gage height, 3.54 ft); minimum, 

0.27 cfs Oct. 5 (gage height, 0.685 ft).

1938-56: Maximum discharge, 787 cfs June 3, 1947, from rating curve extended above 

220 cfs by logarithmic plotting; maximum gage height, 3.80. ft Dec. 30, 1942, from graph 

based on outslde-gage reading; no flow for part of Aug. 24, 1953, result of probable 

temporary Interference up&tream; minimum dally discharge, 0.030 cfs Aug. 6, 1955.

Remarks. Records good except those for periods of Ice effect, backwater from debris, 

rocks, or gravel, or fragmentary gage-height record, which are fair. This station Is 

operated In connection with a study of the effect of reforestation on streamflow. In 

addition to records of streamflow, records of precipitation, temperature, and groundwater levels are collected.

Rating tables, water year 1955-56, except periods of ice effect or backwater from rocks 

debris, or gravel (gage height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 4

0.6 

.7

1.1 

1.3 

1.6

0.08

.31

.66

1.10

2.23

3.60

1.8 

2.0 

Z.2 

2.4 

2.6 

2.8 

3.1

10.1

16.5

27.8

49.0

89.0

156

310

1.6 

1.8

Apr. 5 to Sept. 30

0.31

.66

1.10

2.27

3.70

6.63

10.1

2.6 

2.8 

3.1

16.6 

Z6.6 

40.5 

81.0

150

309

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0.49

.38

.32

.30

.27

25.3

6.98

15.7

6.38

4.33

3.29

2.73

2.29

4.92

33.1

46.8

3976"

21.6

15.3

11.9

10.7

9.86

8.39

11.4

11.7

*9.39

8.22

7.43

7.15

35.6

33.0

394.22

12.7

1.79

2.07

Nov.

21.0

17.0

14.9

12.8

11.2

9.86

8.96

8.22

7.43

6.86

7.89

7.14

6.46

13.1

10.1

*37.8

22.8

17.5

15.7

13.7

12.8

11.4

20.4 

18.4

13.4

12.5

12.2

11.9

9.4

9.4

402.22

13.4

1.89

2.11

Dec.

8.6

8.39

10.9

54.8

31.8

23.4

*18.5

16.1

14

12.2

11.6

10.9

9.86

9.2

9.0

8.8

8.2

7.8

7.2

6.0

6.8

6.2

5.G 

6.2

13.5

8.6

7.8

6.8

7.4

7.2

6.8

370.15

11.9

1.68

1.94

Jan.

6.6

6.4

6.6

6.72

6.59

6.33

5.4

5.0

5.2

6.0

*11.8

ToTs

9.6

8.6

8.0

7.6

7.0

6.4

6.0

5.8

5.6

5.4

5.2 

5.2

5.0

4.7

4.6

4.4

4.7

4.6

4.2

196.04

6.32

0.893

1.03

Feb.

3.9

4TT

3.9

3.9

4.4

4.2

5.0

»5.0

5.39

5.28

5.39

6.2

6.20

5.6

6.2

5.8

5.4

7.4

7.0

6.6

5.8

5.2

5.0 

5.2

22

29

liB

15.5

13.5

226.06

7.80

1.10

1.19

Mar.

13.5

16.5

20.0

18.5

16

20.5

194

189

80

50.7

54.6

45.1

34.8

30

*24.5

15.5

15

16.5

14

13

12.2

11.8

11.6 

11.0

10.2

10.4

9.8

9.6

9.2

9.2

9.0

995.7

32.1

4.53

5.23

Apr.

9.2

14.5

48.1

256

278

217

160

84

56

48.6

60.3

»74.9

66.6

66.7

91.0

150

73.8

42.2

C33

27.6

25.1

25.6

25.6 

23.1

19.6

22.6

21.1

26.2

38.5

35.4

2,120.3

70.7

9.99

11.14

May

24.6

23.5

21.5

18.6

15.3

17.7

13.7

11.2

10.1

*17.5

12.2

32.9

227T

19.1

14.9

19.4

14.9

12.8

12.5

10.7

9.17

8.58

10.6 

8.0

6.76

6.03

6.76

6.27

5.18

5.30

14.2

432.05

13.9

1.96

2.27

June

12.3

^717

9.86

7.74

6.89

5.98

4.88

4.61

4.52

3.86

3.26

*2.77

2.34

2.03

1.73

1.55

1.37

1.22

1.10

1.02

1.02

1.00

1.52 

1.75

1.20

.98

1.37

1.00

.84

.74

99.62

3.32

0.469

0.52

July

0.66

.76

.60

.51

3.82

2.94

1.73

1.08

8.46

3.6

2.4

2.6

»3.2

5.46

2.55

2.15

1.73

1.25

.98

2.27

6.80

5.06

5.55 

3.31

2.88

2.77

2.09

1.67

1.37

1. 18

1.05

82.48

2.66

0.376

0.43

Aug.

1.00

.86

.76

.68

.68

».92

1.46

.90

.74

.95

.76

.64

.72

1.20

.70

.58

.49

.69

fl.28

.82

.62

f.49

.44 

2745

.98

.64

.51

.51

2.44

3 . 87

7« 69

37.50

1.21

0.171

0.20

Sept.

2.55

2.31

1.79

1.31

1.05

1.95

2.23

1.52

1.25

1.00

.92

.92

.86

»2.32

2.13

10.6

5.17

4.52

4.63

10.9

6.27

5.08

18.6

ToTS"

8.06

6.76

5.59

4.88

4.34

6. 32

136.13

4.54

0.641

0.72

Calendar year 1955: Max 309 Mln 0.030 Mean 11.5 Cfsm 1.62 In. 22.05

Water year 1955-56= Max 273 Min 0.27 Mean 15.0 Cfsm 2.12 In. 28.85

Peak discharge (base. 520 cfs).--Apr. 4 (3:45 p.m.) 653 cfs (3.54 ft).

* Discharge measurement made on this day.

c Backwater from debris.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note.--Stage-discharge relation affected by ice Nov. 29 to Dec. 1, Dec. 7, 9-11, Dec. 14 to Jan. 3 

Jan. 7 to Feb. 8, Feb. 12, Feb. 14 to Mar. 1, Mar. 5, 6, 9, Mar. 14 to Apr. 2, Apr. 7-9. Backwater 

from rocks or gravel May 2, 3, 23, 24, July 10-13.
328 SUSQUEHANNA RIVER BASIN

Tioughnioga River at Cortland, N. Y.

Location. Lat 42 =36'10", long 76"09'35", on right bank at upstream side of Elm Street 

Bridge at Cortland, Cortland County, 0.4 mile downstream from confluence of East and 

West Branches.

Drainage area. 296 sq mi (including 16 sq mi, the flow from which may be diverted into 

DeRuyter Reservoir in Oswego River basin)

Records available. May 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,087.19 ft above mean sea level, unadJusted. Prior to Oct. 1, 1939, at datum 1.00 ft higher.

Average discharge. 18 years, 491 cfs.

Extremes.--Maximum discharge during year, 10,000 cfs Apr. 5 (gage height, 10.54 ft); minimum, 23 cfs Oct. 5 (gage height, 1.00 ft, backwater from weeds); minimum daily, 37 cfs 

Oct. 4.

1938-56: Maximum discharge, 10,000 cfs Apr. 5, 1950, Apr. 5, 1956; maximum gage 

height, 10.82 ft Apr. 5, 1950; minimum discharge, 9.8 cfs Sept. 20, 1939; minimum daily, 

19 cfs Sept. 17, 24, 1939.

Remarks.--Records good except those for periods of ice effect or backwater from weeds or 

aquatic vegetation, which are fair. Diurnal fluctuation at low and medium flow caused 

by mills on West Branch.

Rating tables, water year 1955-56, except periods of Ice effect or backwater 

from weeds or aquatic vegetation (gage height, In feet, and discharge, In 

cubic feet per second)

(Shifting-control method used Mar. 7, 8)

Oct. 1 to Mar. 7 Mar. 8 to Sept. 30

1.1 36

1.2 50

1.5 105

2.0 240

2.5 429

3.0 660

4.0 1,260

5.0 2,000

6.0 2,380

1.2

1.5 

2.0 

2.5 

3.0

105

240

429

660

4.0 1,260

6.0 2,900

8.0 5,200

10.0 8,690

Discharge, In cubic feet per second, waber year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

c44

c44

c40

c37

c40

c245

485

452

335

212

162

134

115

121

402

1,120

1,250

903

*596

455

380

344

303

300

468

391

375

316

287 

486

2.060

12,902

416

1.41

1.62

Nov.

1.520

877

670

625

525

460

414

376

*339

314

325

320

296

422

535

910

1,140

783

652

601

533

490

523

878

623

547

512

503

432

395

17,540

585

1.98

2.20

Dec.

375

361

367

1,090

1.510

1,040

769

690

625

552

501

478

445

404

407

b350

b340

b350

b340

b300

b260

*b260

b270

bESO

379

410

b340

b280

b280 

b290

b280

14,623

472

1.59

1.84

Jan.

b270

b245

b250

262

261

254

242

b!95

b215

238

342

442

407

349

341

320

296

b260

b250

b250

b235

b235

230

218

*219

212

204

b!95

b!95 

210

^

8,043

259

0.875

1.01

Feb.

193

197

195

b!65

bT§0

b!90

202

207

219

225

224

247

262

244

*283

264

233

285

333

306

281

b235

b230

b230

b330

777

788

682

590

8,807

304

1.03

1.11

Mar.

b500

b580

792

857

761

799

2,800

»4.970

4,200

2,960

2,300

2,290

1,870

1,640

1,410

1,140

b960

b960

b920

b840

b760

716

711

681

609

624

580

536

544 

535

525

40,370

1,302

4.40

5.07

Apr.

503

572

1,240

3,570

*8.410

6,130

5,060

3,730

2,720

2,170

1,970

2,110

2,290

2,050

2,260

3,270

3,690

2,370

1,780

1,440

1,210

1,270

1,200

1,180

1,000

1,010

988

1,110

1,640 

2,000

69,943

2,331

7.88

8.79

May

1.530

1,130

1,080

922

843

788

780

647

576

666

679

1,080

934

802

692

706

730

624

579

553

492

454

444

*489

406

372

360

366

334

306

390

20,754

669

2.26

2.61

June

670

551

520

480

400

360

330

300

280

260

245

*225

210

190

180

170

155

140

135

125

122

118

130

130

124

112

112

110

102 

96

7,082

236

0.797

0.89

July

90

88

84

80

108

125

122

106

140

150

124

114

*118

135

125

106

96

86

80

88

116

170

195

165

155

130

112

100

94 

84

80

3,566

115

0.389

0.45

Aug.

76

74

70

66

64

64

64

64

60

60

56

52

56

58

54

54

*50

56

54

56

56

52

52

62

60

56

52

52

52 

68

80

1,850

59.7

0.202

0.23

Sept.

88

78

74

68

64

62

72

68

64

64

60

60

60

*70

69

110

121

108

97

165

149

121

185

257

184

150

132

117

109 

106

3,132

104

0.351

0.39

Calendar year 1955 : Max 6,180 Mln 28 Mean 472 Cfsm 1.59 In. 21.66

Water year 1955-56: Max 8,410 Mln 37 Mean 570 Cfsm 1.93 In. 26.21

Peak discharge (base. 4,400 cfs).--Mar. 8 (5:45 p.m.) 5,420 cfs (8.16 ft); Apr. 5 (7:30 a.m.) 

10,000 cfs (10754 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice (no gage-height record Dec. 19-21).

c Backwater from weeds.

Note. Backwater from aquatic vegetation June 3 to Sept. 11.
SUSQUEHAMA RIVER BASIN 

Otselic River at Cinclnnatus, N. Y.

329

Location. Lat 42°32'30", long 75°54'00", on right bank 150 ft upstream from Mead Brook: 

and 300 ft downstream from highway bridge at Cincinnatus, Cortland County.

Drainage area. 148 sq mi.

Records available. June 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,031.26 ft above mean sea level (Corps 

of Engineers benchmark).

Average discharge.--18 years, 276 cfs.

Extremes.--Maximum discharge during year, 4,310 cfs Oct. 30 (gage height, 9.37 ft); minimum, 14 cfs Oct. 4; minimum gage height, 2.19 ft July 3.

1938-56: Maximum discharge, 8,390 cfs Dec. 30, 1942; maximum gage height, 10.68 ft 

Apr. 4, 1950; minimum discharge, 3.8 cfs Sept. 25, 1939; minimum gage height, that of 

July 3, 1956.

Remarks.--Records good except those for periods of ice effect, backwater from debris, or 

shifting control, which are fair.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

22

17

15

15

16

451

340

415

e229

e!53

el!6

e92

e81

e86

266

609

*861

522

380

e280

e234

e200

el72

e205

406

e260

e231

e!90

e!77

el, 490

2,750

11,261

363

2.45

2.83

Nov.

*1,080

665

516

476

371

315

276

249

223

205

226

218

192 598'

431

952

776

522

446

394

343

302

*339

534

361

306

289

279

221

212

12,323

411

2.76

3.10

Dec.

194

186

189

978

988

602

b430

394

343

292

261

240

223

b!90

b200

b!70

b!65

b!75

*b!65

b!20

bl!2

bllO

bl!6

b!40

196

192

159

b!24

b!30

b!40

b!35

6,059

260

1.76

2.03

Jan.

126

106

b!25

128

124

b!18

111

75

blST

128

b270

336

270

205

197

184

166

140

b!25

*b!40

b!25

b!24

bl!6

b!08

bllO

b!04

b!02

b98

b96

b!06

b96

4,363

141

0.953

1.10

Feb.

b90

b92

100

b66

b96

96

100

100

104

104

104

119

*124

111

124

119

102

145

164

147

b!35

bl!4

bllO

b!06

b235

562

442

353

283

4,549

157

1.06

1.14

Mar.

b230

319

470

462

371

412

2,320

*2.950

1,980

1,200

974

*958

735

670

557

b410

b340

b380

b340

b300

b280

b260

273

255

b225

232

218

197

197

197

192

16,904

610

4.12

4.75

Apr.

186

241

721

2,350

*4,040

*3,290

2,720

1,660

1,120

898

*944

1,190

1,270

1,130

1,460

2,680

2,180

1,290

948

734

612

770

730

662

546

612

574

810

1,330

1,320

39,018

1,301

8.79

9.80

May

794

617

617

514

454

427

396

313

271

336

303

S99

454

392

328

354

*343

281

274

247

209

191

208

203

163

141

147

152

136

124

170

10,158

328

2.22

2.55

June

282

218

279

222

195

176

158

143

136

127

138

*106

87

74

65

60

55

50

46

43

43

42

45

49

43

39

39

37

35

33_

3,065

102

0.669

0.77

July

32

32

e32

e25

e56

e73

e59

e47

e94

e59

e51

e46

*e46

e50

e47

e40

e36

e32

e29

e40

e90

122

TIT

*80

68

67

58

53

44

40

36

1,697

54.7

0.370

0.43

Aug.

35

32

30

28

26

26

27

24

23

22

21

20

*21

24

22

20

19

20

22

22

22

20

18

23

27

22

19

19

21

23

32

736

23.7

0.160

0.18

Sept.

35

c33

c27

c23

c21

c20

c21

c22

c20

CIS

c!8 cia

c!7

*c22

36

e90

eBO

e70

e56

elll

elOl

e70

elll

6121

elTT

e90

e71

e61

e55

e52

1,601

53.4

0.361

0.40

Calendar year 1955: Max 2,770 Mln 9.0 Mean 265 Cfsm 1.79 In. 24.31

Water year 1955-56: Max 4,040 Mln 15 Mean 316 Cfsm 2.14 In. 29.08

Peak discharge (base, 4,400 efs). No peak above base.

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

c Backwater from debris.

e Shifting-control method used.
330 SUSQUEHANNA RIVER BASIN

Otselic River near Upper Lisle, N. Y.

Location. Lat 42°25'20", long 75°57'00", on left bank 300 ft downstream from Salzbury 

Bridge, half a mile downstream from Barry Run, 2 miles upstream from Upper Lisle, 

Broome County, and 9 miles upstream from Whitney Point Reservoir.

Drainage area. 216 sq mi.

Records available. January 1937 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 985.75 ft above mean sea level (Corps of 

Engineers benchmark).

Average discharge. 19 years, 394 cfs.

Extremes. Maximum discharge during year, 6,780 cfs Apr. 5, 6 (gage height, 7.65 ft); maximum gage height, 10.06 ft Apr. 8 (backwater from Whitney Point Reservoir); minimum discharge. 20 cfs Oct. 5 (gage height, 0.75 ft, backwater from aquatic vegetation and/or 

debris).

1937-56: Maximum discharge, 12,400 cfs Dec. 30, 1942 (gage height, 10.43 ft, from 

recorded range in stage); maximum gage height, 19.35 ft Mar. 23, 1948, from floodmark 

(backwater from Whitney Point Reservoir); minimum discharge, 6.7 cfs Sept. 25, 1939 

(gage height, 0.61 ft, backwater from weeds).

Maximum discharge known, 15,400 cfs July 8, 1935 (gage height, 12.35 ft, from floodmarks at gaging station), by slope-area determination.

Remarks. Records good except those for periods of ice effect or backwater from Whitney 

Point Reservoir, aquatic vegetation, or debris, which are fair.

Rating tables, water year 1955-56, except periods of ice effect or backwater 

from aquatic vegetation, debris, or Whitney Point Reservoir (gage height, 

in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 5 Apr. 6 to Sept. 30

0.7 

.9 

1.1 

1.3 

1.5

132

197

2.0 

3.0

4.0 

6.0 

8.0

427

1,120

2,100

4,470

7,360

0.7 

.9 

1.1 

1.3 

1.5

81

132

197

426

1,090

2,010

4,300

5,750

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

27

26

23

21

21

500

560

560

340

215

165

130

114

118

480

1,250

1,350

800

540

4OO

330

280

245

240

560

370

330

270

*250 

1,700

4,620

16,835

543

2.51

2.90

Nov.

1.730

969

735

708

544

461

411

373

328

295

338

353

295

911

723

1,450

1,280

*785

653

576

508

450

445

729

502

433

405

390

290 

 280= 

18,350

612

2.83

3.16

Dec.

260

260

269

1,210

_L.400

820

580

520

496

427

384

368

338

291

300

235

225

245

235

180

155

150

150

195

270

300

230

*160

160 

175

165

11,153

360

1.67

1.92

Jan.

160

150

155

160

160

155

150

125

140

155

450

640

484

340

300

280

250

200

190

*190

180

170

160

145

145

135

130

125

125 

140

130

6,419

207

0.958

1.11

Feb.

125

130

135

100

130

130

140

140

148

151

151

180

201

170

187

183

151

212

260

224

205

160

155

145

325

850

*666

526

420

6,700

231

1.07

1.15

Mar.

330

461

728

756

588

696

3,820

4.570

*3,280

1,820

1,410

1,510

1,110

1,010

842

6OO

470

500

480

440

390

370

390

360

320

358

328

291

305 

295

295

29,123

939

4.35

5.01

Apr.

282

380

1,250

3,070

*6.250

5,380

4,400

2,500

*1,800

1,450

1,500

*1,700

1,800

1,620

1,990

3,140

3,440

1,870

1,340

1,010

817

1,030

965

920

729

796

756

926

1,780

'

56,711

1,890

8.75

9.76

May

1.150

817

853

684

621

562

556

426

363

410

410

720

597

510

426

437

470

*378

353

338

286

256

252

277

220

194

197

212

187 

165

13,570

438

2.03

2.34

June

455

343

447

338

273

239

205

183

165

155

155

140

118

108

98

88

80

74

*68

64

62

60

66

74

64

58

58

56

50 

46

4,390

146

0.676

0.76

July

43

46

49

36

68

116

82

64

145

106

80

66

*64

68

66

58

56

49

46

60

155

260

310

185

124

130

98

80

72 

66

62

2,910

93.9

0.435

0.50

Aug.

60

54

50

47

46

44

43

44

41

38

38

37

*34

37

37

34

33

33

34

36

34

31

29

38

41

34

30

34

36 

33

41

1,201

38.7

0.179

0.21

Sept.

74

49

43

37

34

34

38

33

31

29

*29

31

49

180

165

116

90

225

160

114

155

350

205

155

124

106

96 

88

2,896

96.5

0.447

0.50

Calendar year 1955: Max 5,320 Min 12 Mean 387 Cfsm 1.79 In. 24.35

Water year 1955-56: Max 6,250 Min 21 Mean 465 Cfsm 2.15 In. 29.32

Peak discharge (base, 5.600 cfs). --Oct. 31 (4:30 a.m.) 5.73O cfs (6.98 ft); Apr. 5 (11:15 p.m.)

to Apr. 6 (12:45 a.m.) 6,780 cfs (7.65 ft).

charge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Nov. 28 to Dec. 2, Dec. 7, 8, Dec. 15 to Jan. 12, 

Jan. 14 to Feb. 8, Feb. 22-24, 29, Mar. 1, 16-25. Backwater from aquatic vegetation June 9 to 

Sept. 30. Backwater from aquatic vegetation and/or debris Oct. 1-30. Backwater from Whitney Point 

Reservoir Apr. 7-13 (doubtful gage-height record Apr. 10-12).
SUSQUEHANNA RIVER BASIN 331

Whitney Point Reservoir at Whitney Point, N. Y.

Location. Lat 42°20'30", long 75°57'55", on left bank at Whitney Point Dam on Otselic 

River, 0.9 mile upstream from mouth and 1.0 mile north of Whitney Point, Broome County.

Drainage area. 255 sq mi.

Records available. October 1942 to September 1956.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Corps of 

Engineers).

Extremes. Maximum elevation during year, 995.75 ft Apr. 9; minimum, 950.74 ft Oct. 6.

1942-56: Maximum elevation, 1,005.0 ft Mar. 23, 1948; minimum, 950.4 ft Sept. 2-4, 

1953.

ft (crest of spillway) above mean sea level. Dead storage, 28 acre-ft. Figures givi

herein represent total contents. Floods are controlled by operation of three gates.

Water is stored during high flows and released when downstream conditions warrant.

Cooperation.--Capacity table furnished by Corps of Engineers.

Capacity table, water year 1955-56 (elevation, in feet, and 

contents, in acre-feet)

950.0

955.0

960.0

965.0

970.0

28

250

1,250

4,260

9,270

975.0

980.0

990.0

1,000.0

15,290

22,240

38,980

59,220

Elevation, in feet, at 12 p.m., water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

(t)

(*)

Oct.

50.9

50.9

50.8

50.8

50.8

56.6

55.6

56.2 

54.2

53.1

52.6

52.3

52.1

52.3

60.2

66.0

67.6

65.3 

61.8

57.5

54.8

54.0

53.6

53.7

55.9

54.8

54.4 

54.0

53.7

61 . 9 

68.7

7,922

+7,877

Nov.

68.2

66?4"

64.4

62.5

60.3

58.0

56.7

55.9 

55.3

54.9

55.4

55.6

55.1

59.4

60.1

63.1

63.8

63.4 

62.8

62.2

61.4

60.5

59.6

60.1

59.6

59.0

58.4 

57.8

57.0

56 . 2

390

-7,532

Dec.

55.6

55.1

54.9

59.5

61.4

60.6

59.7

59.1 

58.6

58.1

57.6

57.0

56.5

55.9

55.6

55.1

54.8

54.9 

54.7

a53.8

53.4

53.4

53.3

a54.0

a54.9

55.1

54.7 

53.8

53.8

a53.2 

aSTTB"

144

-246

Jan.

aS3.2

53.2

53.5

53.6

53.6

53.6

53.4

52.5 

aSTTT

a54.1

a56.6

a58.2

aS8.8

a58.6

a57.7

a57.3

a56.3

55.2 

54.4

a54.5

aS4.2

a54.1

53.9

53.7

53.7

53.6

53.5 

53.3

53.3

53.5 

53.3

133

-11

Feb.

53.1

53.1

53.2

52.6

5373"

53.3

53.4

53.4 

53.6

53.8

53.9

54.6

55.0

54.6

54.8

54.7

54.3

55.4 

55.9

55.7

55.4

54.8

54.6

54.5

56.8

60.1

60.4 

597?

59.3

1,040

+907

Mar.

58.7

59.2

60.5

61.0

60.5

61.0

71.6

80.3 

83.6

SST5~

d80.2

77.9

75.1

72.3

69.4

66.6

63.5

61.8 

60.7

60.0

59.3

58.9

58.8

58.6

58.1

58.0

57.8 

57.4

57.2

m530

-510

Apr.

57.0

57 "9

62 is

67.9

80.0

87.6

93.2

IB92.0

89.6

87.4

85.5

83.2

81.4

81.6

82.5

81.6 

79.1

76.1

72.8

70.1

67.7

65.7

63.3

62.1

61.3 

61.3

63.6

64.6

3,918

+3,388

May

63.6

62.4

61.8

60.9

60.2

59.7

59.5

58.7 

58.1

58.2

58.2

59.8

59.8

59.4

58.7

58.6

58.7

58.1 

57.7

57.4

56.8

56.2

55.8

55.9

55.3

54.7

54.8 

54.9

54.5

gs'-|

338

-3,580

June

57.6

57.4

58.0

577?

56.8

56.1

55.3

54.7 

54.3

54.2

54.0

53.8

53.4

53.1

52.9

52.6

52.4

52.2 

52.1

51.9

51.9

51.9

52.1

52.2

52.1

51.8

51.9 

51.4

51.2

51.2

53

-285

July

51.1

51.1

51.2

51.0

52.0

52.2

51.8

51.5 

53.0

52.1

51.8

51.6

51.6

51.6

51.6

51.5

51.4

51.3 

51.2

51.6

53.4

55.1

BTTT

53.3

52.7

52.6

52.2 

51.9

51.7

51.6 

51.5

62

+9

Aug.

51.5

51.4

51.3

51.3

51.2

51.3

51.2

51.2 

51.1

51.1

51.0

51.0

51.0

51.1

51.1

51.0

51.0

50.9

5oT5~

51.0

51.0

50.9

50.9

51.2

51.2

51.0

51.0 

51.1

51.1

51.1 

52.2

84

+22

Sept.

52.3

51.7

51.5

a51.3

a51.2

a51.2

51.4

51.2 

51.2

51.1

51.1

51.1

51 [Q

5l!s

54.6

53.6

52.7 

52.4

54.0

53.2

52.6

53.5

54.6

53.5

52.9

55.5

BTTT

52.4

52.3

88

+4

Calendar year 1955.................... t -3,603

Water year 1955-56.................... * +45

t Contents, in acre-feet, at end of month.

* Change in contents in acre-feet.

a No gage-height record; elevation at 12 p.m. estimated from reconstructed gage-height graph 

based on weather records, normal pattern for rise, and records for Otselic River near Upper Lisle.

d Doubtful gage-height record; elevation at 12 p.m. computed from reconstructed gage-height graph 

based on weather records, normal pattern for rise, and records for Otselic River near Upper Lisle.

Note. Add 900.O ft to obtain elevation above mean sea level.
332 SUSQUEHAMA RIVER BASIN

Tioughnioga River at Itaska, N. Y.

Location. Lat 42°17 I 55", long 75°54 I 30", on right bank at Itaska, Broorae County, 3f miles

 downstream from Otselic River and village of Whitney Point and 6 miles upstream from

mouth.

Drainage area. 735 sq mi.

Records available .--October 1929 to September 1956. .,,.*. 

Gage --Water-stage recorder. Datum of gage is 917.97 ft above mean sea level, adjustment

of 1912.

Average discharge.--27 years, 1,245 cfs (adjusted for storage). 

Extremes. Maximum discharge during year, 15,800 cfs Apr. 5 (gage height, 9.75 ft); mini-

 mum; 82 cfs Oct. 5 (gage height, 1.08 ft, backwater from weeds).

1929-56- Maximum discharge, 61,100 cfs July 8, 1935 (gage height, 16.61 ft, from 

floodmarks), from rating curve extended above 22,000 cfs on basis of velocity-area and 

slope-area studies and studies of peak discharges of flood of July 8, 1935, at downstream stations; minimum, 39 cfs Sept. 25, 1939; minimum gage height, 0.72 ft Aug. 4,

Correction.--The figure of minimum gage height has been corrected to 0.72 ft Aug. 4, 

1936, superseding figure of 0.75 ft Oct. 16, 1939, erroneously published as minimum 

gage height of record in WSP 891 and subsequent annual reports. 

Remarks. Records excellent except those for periods of ice effect, no gage-height record,

 oFTackwater from weeds or aquatic vegetation, which are fair. Since 1942, high flow

regulated by Whitney Point Reservoir (see preceding page). 

Revisions (water years). WSP 756: Drainage area. WSP 1001: 1935-38.

Rating tables, water year 1955-56, except periods of ice effect or backwater from weeds 

or aquatic vegetation (gage height, in feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 17 Apr. 18 to Sept. 30

0.9 

1.2 

1.5 

2.0

77

158

275

553

3.0 

4.0 

6.0 

9.0

1,360

2,570

5,990

13,200

1.0 

1.4 

2.0

100

229

530

2.5 

3.0

890

1,360

needing 

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Z5

26

27

28

Z9

30

31

Total

Mean

Oct.

cllO 

clOO

c90

c88

cjH

C490

c 1,600

c 1,450

cl,220

C740

C520

C410

C340

c340

03,300

5,200

3,490

4,360

3,380

2,330

1,460

1,100

931

867

1,520

1,300

1,110

971

859

2,430

5,190

47,380

1,528

Nov.

*5,170 

3,780

3,100

2,720

2,180

1,730

1,370

1, 170

al,020

a931

a987

a979

a923

1,640

1,780

3,300

3,430

*2,B70

2,310

2,100

1,900

1,720

1,610

2,140

1,850

1,580

1,460

1,400

1,270

1,120

59,340

1,978

Dec.

1,040 

963

931

,240

,540

,960

,200

,860

,650

,460

,320

,250

,170

,040

,020

920

900

920

840

700

620

640

680

740

867

940

*740

620

620

640

620

36,651

1,182

Jan.

600 

560

580

600

600

580

560

460

500

540

1,200

1,500

1,300

1,000

940

880

800

680

620

620

600

580

560

520

*520

500

480

460

460

500

480

20,780

670

Feb.

450 

470

480

390 470"

470

500

520

560

580

EBO

700

800

740

860

812

700

828

971

915

820

700

680

680

985

2,050

*2,250

1,960

1,650

- -

24,571

847

Mar.

1,350 

1,530

2,260

2,630

2,290

2,570

8,340

8,870

8,340

7,800

7,740

*7,490

6,450

5,790

5,000

4,250

3,450

2,900

2,400

2,050

1,850

1,700

1,680

1,600

1,450

1,450

1,400

1,300

1,280

1,250

1,230

109,690

3,538

Apr.

1,210 

1,390

3,410

7,280

12,900

*11,300

9,370

7,570

8,060

7,960

7,560

7,910

8,000

7,470

7,470

8,410

9,220

6,750

6,520

5,710

5,020

4,780

4,420

3,900

3,430

2,920

2,710

2,640

3,850

4,760

_

183,900

6,130

May

4.270 

3,270

3,030

2,530

2,250

,980

,970

,670

,420

,410

,560

,970

,290

,930

,660

,560

,680

* ,470

,340

,290

,150

,040

958

1,000

898

795

780

834

764

691

8TT

50,271

1,622

June

1,480 

1,410

1,370

1,280

1,060

941

810

712

642

601

549

518

470

431

404

524

367

333

*301

279

266

262

309

370

300

260

260

250

220

205

17,184

573

July

190 

185

180

170

3575

520

400

340

540

470

390

310

290

300

300

260

235

215

*190

270

660

960

1,600

800

580

620

440

360

300

270

240

12,935

417

Aug.

225 

2T5

195

175

170

170

185

165

155

150

140

135

135

*185

150

135

125

122

135

130

125

124

114

T80

165

145

130

135

220

160

225

4,920

159

Sept.

680 

3EO

260

220

190

180

250

205

175

160

155

145

*140

140

205

940

840

600

440

800

640

490

500

1,120

800

560

380

370

450

340

12,695

423

Adjusted for change in contents In Whitney Point Reservoir

Mean 

Cfsm 

In.

1,656 

2.25 

2.60

1,851 

2.52 

2.81

Calendar year 1955: 

Water year 1955-56:

1,178 

1.60 

1.85

670 

0.912 

1.05

863 

1.17 

1.27

3,530 

4.80 

5.54

6,187 

8.42 

9.39

Observed

Max 9,940 Mln 54 Mean 1,269 

Max .12,900 Mln 84 Mean 1,586

1,563 

2.13 

2.45

568 

0.773 

0.86

417 

0.567 

0.65

159 

0.216 

0.25

423 

0.576 

0.64

Adjusted

Mean 1,264 Cfam 1.72 In. 23.34 

Mean 1,586 Cfam 2.16 In. 29.36

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records foi 

nearby stations.

c Backwater from weeds.

Note.--Stage-discharge relation affected by Ice Dec. 14-24, Dec. 26 to Feb. 15, Feb. 17, 21-24, 

29, Mar. 1, 15-20, 25, 28. Backwater from aquatic vegetation June 24 to Sept. 30.
SUSQUEHANNA RIVER BASIN 

Chenango River near Chenango Forks, N. Y.

333

Location.--Lat 42°13'05", long 75°50'55", on left bank 1^ miles downstream from Tioughnioga River and village of Chenango Forks, Broome County.

Drainage area.--1,492 sq mi.

Records available.--November 1912 to September 1956.

Gage. Water-stage recorder. Datum of gage is 871.73 ft above mean sea level (levels by % 

Corps of Engineers). Nov. 11, 1912,to Oct. 1, 1914, staff gage and Oct. 2, 1914, to 

Aug. 2, 1936, water-stage recorder, at site 300 ft upstream at same datum.

Average discharge. 43 years (1913-56), 2,453 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 31,400 cfs Apr. 5 (gage height, 12.19 ft); minimum, 170 cfs Oct. 5 (gage height, 2.53 ft, backwater from weeds).

1912-56: Maximum discharge, 96,000 cfs July 8, 1935 (gage height, 20.3 ft, from 

floodmarks), from rating curve extended above-32,000 cfs on basis of slope-area determination of peak flow; minimum, 84 cfs Sept. 19, 25, 1939 (gage height, 2.24 ft).

Remarks.--Records excellent except those for periods of ice effect or backwater from 

weeds or aquatic vegetation, which are good. Since 1942, flood flows controlled by 

Whitney Point Reservoir (see p. 331).

Revisions (water years).--WSP 756: Drainage area. WSP 891: 1935-36.

Rating tables, water year 1955-56, except periods of ice effect or backwater from weeds 

or aquatic vegetation (gage height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 5

2.4

2.5 

3.0 

3.5 

4.0

146

210

620

1,190

1,910

5.0 

6.0

10.0

12.0

3,680

6,120

12,400

20,400

30,400 4.0

Apr. 6 to Sept. 3O

196 5.0

332 6.0

587 8.0

1,160

1,870 12.0

3,620

5,980

12,200

20,400

30,400

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

c270 

C245

c215

c205

C190

C660

2,780

2,400

2,050

cl,300

C960

C780

c660

C640

3,480

8,290

6,060

6,730

4,860

*3,540

2,540

1,990

1,700

1,520

2,440

2,370

1,990

1,790

1,600

4,260

10,600

79,115

2,552

Nov.

9,910 

6, 736

5,160

4,640

3,900

3,210

2,710

2,380

2,130

1,960

2,010

2,250

2,010

3,180

4,010

5,950

7,590

*5,240

4,290

3,840

3,440

3,160

2,900

3,560

3,310

2,850

2,640

2,540

2,330

2,040

111,870

3,729

Dec.

,930 

,800

,780

,590

,700

,210

,800

,330

,010

,740

,500

,370

,210

,950

,950

,750

,750

,800

,700

,450

,400

,350

,450

,500

,750

,900

,550

,300

,250

1,300

1,250

69,320

2,236

Jan.

1,160 

1,060

1,100

1,140

1,160

1,140

1,060

900

900

1,100

2,300

3,300

2,800

2,000

1,850

1,750

1,550

1,350

1,200

1,160

1,120

1,060

1,040

1,000

980

940

920

860

840

860

860

40,460

1,305

Feb.

*820 

*820

840

740

800

840

900

960

,040

,140

,180

,450

,600

,450

,600

,500

,300

,550

,950

,800

,600

,350

,400

,450

,850

,100

» ,500

3,700

3,200

47,230

1,629

Mar.

2,600 

3,000

4,450

5,320

4,490

4,970

17,100

SI, 200

*19,700

15,200

13,200

12,800

 11,000

9,850

8,660

7,000

5,400

5,200

4,600

4,000

3,600

3,420

3,380

3,250

2,960

2,960

2,830

2,620

2,590

2,520

2,480

212,350

6,850

Apr.

2.380 

2,690

6,020

13,600

26,300

»27.300

23,600

18,800

15,700

14,100

12,900

13,200

13 , 800

12,500

12,700

14, 900

17,900

13,600

11,700

9,550

8,110

8,140

7,690

7,140

6,030

5,340

5,080

4,910

6,980

9,200

351,860

11,730

May

7,960 

6,010

5,590

4,720

4,180

3,680

3,640

3,140

2,700

2,600

2,820

3,190

3,860

3,290

2,900

2,700

2,930

*2,610

2,370

2,290

2,070

1,880

1,750

1,840

1,700

1,530

1,500

1,630

1,540

1,430

1,580

91,630

2,956

June

3.140 

2,990

3,060

2,720

2,210

1,920

1,630

1,390

1,240

1,210

1,200

1,100

945

885

817

859

698

627

578

*541

513

504

532

667

559

504

504

523

478

436

34,980

1,166

July

402 

394

387

371

645

1,030

851

687

755

794

719

607

578

587

569

523

478

444

410

509

1,160

1,570

*5,250

1,800

1,210

1,260

945

762

647

569

504

25,417

820

Aug.

486 

450

430

390

380

370

380

360

350

330

310

300

300

*360

340

300

280

270

280

270

270

260

250

320

360

340

300

300

452

520

807

11,115

359

Sept.

1,320 

762

600

490

430

390

440

400

360

330

310

300

290

300

380

,610

,880

* ,430

,030

,530

,510

,150

,130

,800

,6fiO

,460

,120

899

993

828

28,522

951

Adjusted for change in contents in Whitney Point Reservoir

Mean 

Cfsm 

In.

2,680 

1.80 

2.07

3,602 

2.41 

2.69

Calendar year 1955: 

Water year 1955-56:

2,232 

1.50 

1.73

1,305 

0.875 

1.01

1,644 

1.10 

1.19

6,842 

4.59 

5.29

11,790 

7.90 

8.81

2,898 

1.94 

2.24

Observed

Max 19,600 Mln 112 Mean 2,378 

Max 27,300 Mln 190 Mean 3,016

1,161 

0.778 

0.87

820 

0.550

0.63

359 

0.241 

0.28

951 

0.637 

0.71

Adjusted

Mean 2,373 Cfsm 1.59 In. 21.58 

Mean 3,016 Cfsm 2.O2 In. 27.52

* Discharge measurement made on this day. 

c Backwater from weeds.

Note. Stage-discharge relation affected by ice Dec. 11, Dec. 14 to Mar. 2, Mar. 16-21. 

water from aquatic vegetation Aug. 2-28, Sept. 3-15.
334 SUSQUEHANNA RIVER BASIN

Susquehanna River at Vestal, N. Y.

Location. Lat 42 0 05'30", long 76°03'25", on left bank 400 ft downstream from highway 

bridge at Vestal, Broome County, and 800 ft upstream from Big Choconut Creek.

Drainage area. 3,960 sq ml.

Records available.--March 1937 to September 1956.

'*Gage. Water-stage recorder. Datum of gage Is 799.19 ft above mean sea level (levels by 

Corps of Engineers ).

Average discharge. 19 years, 6,427 cfs.

Extremes. Maximum discharge during year, 64,000 cfs Mar. 8 (gage height, 22.74 ft); minimum, 620 cfs Aug. 23 (gage height, 1.56 ft, backwater fromraquatic vegetation).

1937-56: Maximum discharge, 92,400 cfs Mar. 22, 1948 (gage height, 27.73 ft); minimum dally, 250 cfs Sept. 24, 25, 1939; minimum gage height, 0.98 ft Oct. 20, 1939.

Flood In March 1936 reached a stage of about 30.5 ft, from floodmarks (discharge, 

107,000 cfs).

Remarks. Records excellent except those for periods of Ice effect or backwater from weeds 

or aquatic vegetation, which are good.

Rating tables, water year 1955-56, except periods of Ice effect or backwater from weeds 

or aquatic vegetation (gage height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Mar. 6 Mar. 7 to Sept. 30

10.0

13.0

17.0

14,800

24,300

40,000

Note. Same as 

following table 

below 10.0 ft.

1.4 

1.6 

2.0 

3.0 

5.O

640

755

1,020

1,850

4,400

7.0

10.0

14.0

18.0

23.0

7,990

14,800

27,700

42,500

65,300

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4 

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

01,000 

C980

c880

C820 

C780

01,500 

5,780

6,070

6,460

4,670

3,520

2,780

2,280

2,120

7,200

59,100

25, 100

*27,500

22, 200

15,500

11,500

8,390

7,030

6,170

6,880

8,030

7,200

6,280

5,650

11,400

29,200

283,970

9,160

2.31

2.67

Nov.

25, 100 

16,700

12,600

11,200 

11,200

10, 100 

8,530

7,510

6,800

6,240

6,190

6,800

6,590

7,180

10 , 300

15,600

20 , 000

15,900

12,500

11,000

9,720

*8, 820

8,030

8,250

8,390

7,450

6,690

6,080

5,940

5,180

300,590

10,020

2.53

2.82

Dec.

4,850 

4,450

4,320

5,560 

11,700

13.600 

10,400

8,370

7,310

7,120

6,520

6,080

5,720

5,040

b4,900

*b4,300

b4,200

4,070

b4,300

b3,700

b3,100

b2,900

b3,100

b3,400

b4,000

b4,800

b4,700

b3,800

b3,500

b3,300

3,090

166,200

5,361

1.35

1.56

Jan.

b3,OOO 

b2, 800

b2,700

2,910 

3,000

2,980 

2,820

2,340

2,140

2,550

4,570

9,290

10, 400

8,900

7,390

6,540

*5,770

4,990

4,260

3,830

3,730

3,660

3,580

3,210

b3,100

2,990

2,860

b2,700

2,610

b2, 700

b2,700

127,020

4,097

1.03

1.19

Feb.

b2,700 

2,580

2,570

2,490 

2,260

2,420 

2,680

2,850

3,070

3,510

4,060

5,350

5,990

5,180

5,240

5,670

4,980

5,430

7,070

7,100

b6,000

4,700

4,080

3,650

5,710

12,400

15,900

11,700

*9,830

155,170

5,351

1.35

1.46

Mar.

7,970 

8,210

12, 200

15,800 

13,700

17,900 

37 , 800

57,500

57,400

*44,200

33,700

30, 800

*27,700

24,200

21,400

17,900

14,400

12,000

11,700

10,800

9,770

8,990

8,780

8,720

8,030

7,490

7,570

7,240

6,900

6,670

6.630

564,070

18, 200

4.60

5.30

Apr.

6.590 

7,570

13,300

30,000 

*54,300

62.600 

62,000

57,900

45, 100

37,200

33,200

31,100

51,500

30, 500

28,700

31,700

38,700

38,100

32,900

26,300

21,400

19,600

19,900

20, 100

17,200

15,100

14,600

13,700

14,900

19,600

875,360

29,180

7.37

8.22

May

21,000 

17,400

14,800

12,900 

11,500

10,400 

10,100

9,200

7,930

7,220

7,370

7,790

8,670

8,190

7,200

*6,900

7,310

7,180

6,720

6,060

5,520

5,140

4,720

4,560

4,530

4,000

3,740

4,160

4,020

3,730

3.520

243,480

7,854

1.98

2.29

June

5,560 

7,370

8,780

8.800 

7,650

6,120 

5,240

4,620

5,950

3,740

3,760

3,650

3,450

3,000

2,920

2,660

2,480

2,170

1,870

*1,790

1,540

1,570

1,550

1,860

1,700

1,580

1,500

1,450

1,430

1.560

105,120

3,504

0.885

0.99

July

1,240 

1,160

1,080

1.020 

1,450

2,500 

2,600

2,300

2,050

2,000

1,800

1,600

1,500

1,550

1,700

1,750

1,500

1,300

1,200

1,300

2,450

3,500

*5.600

5,200

3,900

3,800

2,800

2,150

1,750

1,500

1,350

66,600

2,148

0.542

0.63

Aug.

1,240 

1,160

1,080

1,000 

940

920 

880

900

880

*860

800

740

740

780

800

800

800

740

720

680

680

660

640 680"

720

720

740

740

900

940

1,450

26,330

849

0.214

0.25

Sept.

2,510 

2,100

1,650

1,350 

1,180

1,000 

980

960

860

800

780

720

*70O

T40- 680

1,600

3,770

4,580

3,480

3,740

4,510

3,630

2,960

6,760

9.960

6,910

4,640

3,480

3,280

2,820

83,130

2,771

0.700

0.78

Calendar year- 1955: Max 40,500 Mln 340 Mean 6,437 Cfsm 1.63 In. 22.06

Water wat-ei year yeai 1955-56: ±300-00; FIOA Max 62,600 wi_,uww Mln PIJ.U 640 o^tu Mean PKSSUI 8,189 u, j.oj Cfsm VJ.BIU 2.07 t-.wr In. 0.11. 28.16 I-^.-LW

Peak discharge (base, 46,000 cfs).--Oct. 16 (8:15 a.m.) 46,500 cfs (18.49 ft); Mar. 8 (11:15 p.m.) 

64,000 cfs (22774 ft); Apr. . 6 (11 a.m.) .. 63,900 , cfs (22.72 ft).

Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

c Backwater from weeds. 

Note. Backwater from aquatic vegetation July 1 to Aug. 31, Sept. 2-16.
SUSQUEHANNA RIVER BASIN 335

Owego Creek near Owego, N. Y.

Location.--Lat 42°07'45", long 76°16'15", on right bank 300 ft upstream from highway 

bridge, half a mile upstream from Catatonk Creek, and lj miles north of Owego, Tioga 

County.

Drainage area. 186 sq mi.

Records available. January 1930 to September 1956.

Gage (revised). Water-stage recorder. Datum of gage is 820.82 ft above mean sea level, 

adjustment of 1912. Prior to July 8, 1935, water-stage recorder, and July 9, 1935, to 

Sept. 30, 1936, wire-weight gage, at site 250 ft downstream at same datum.

Average discharge. 26 years, 274 cfs.

Extremes. Maximum discharge during year, 10,200 cfs Oct. 16 (gage height, 9.09 ft); minimum, 22 cfs Oct. 5; minimum gage height, 0.405 ft Aug. 28.

1930-56: Maximum discharge, 23,500 cfs July 8, 1935 (gage height, 10.50 ft, from 

floodmarks), from rating curve extended above 2.500 cfs on basis of slope-area determination of peak flow; minimum, 8.4 cfs Sept. 18, 1939.

Remarks. Records good except those for periods of ice effect, backwater from debris, or 

no gage-height record, which are fair.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of ice effect or backwater from 

debris (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Jan. 11

0.4

.5

.7

1.0

1.5

18

26

53

1O7

237

2.0 417

3.0 900

5.0 2,350

7.0 4,700

9.0 9,800

O.4

.6 

1.0

Jan. 12 to Sept. SO

31 1.5

54 2.0

122 3.O

252

430

900

Note. Same as preceding 

table above 3.0 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

c25

c24

c24

c23

022.

0190

228

341

233

148

118

99

85

*2O4

2,540

«6,79O 

2,O40

1,060

695

506

397

328

269

*250

373

279

231

196

174 

911

1,910

20,713

668

3.59

4.14

Nov.

818

574

458

425

325

283

250

225

201

182

210

225

185

379

358

1.520 

1,030

621

497

433

*381

343

349

492

328

289

276

272

230 

195

12,154

405

2.18

2.43

Dec.

ISO

170

171

402

458

296

245

225

215

193

174

169

158

150

12O

*108 

114

110

106

86

84

82

84

102

156

175

120

108

94 

100

94

4,989

161

0.866

1.00

Jan.

88

80

86

88

86

84

78

74

B2

87

555

525

384

260

220

20O 

*184

155

106

104

104

1O8

102

94

88

84

78

74

84 

94

90

4,506

139

O.747

O.86

Feb.

82

88

84

80

90

86

112

122

135

154

171

240

278

225

278

274 

222

565

395

311

258

210

195

185

454

922

578

466

*570

7,428

256

1.38

1.49

Mar.

31O

448

760

845

655

1.58O

*6.110

5,250

2,410

1,440

1,460

1,470

955

845

681

500 

450

470

410

350

31O

301

311

298

265

268

268

255

268 

262

268

30,451

982

5.28

6.08

Apr.

301

485

1,420

3,73O

4.440

5,060

5,250

a2,500

al,850

a2,50O

a2,250

al,7OO

*al,200

1,O20

1,100

1,510 

1,370

884

676

546

458

491

516

525

395

418

410

458

824 

978

41,045

1,568

7.55

8.21

May

60O

499

586

422

584

545

347

268

231

225

257

547

376

518

258

*243 

262

228

208

189

168

a!54

a!4O

a!40

al!8

106

al!2

a!54

a!22 

allO

a!20

8,015

259

1.39

1.60

June

a206

a202

a249

a237

a!97

a!71

144

124

114

106

97

84

79

117

246

144 

108

86

71

65

*61

6O

58

165

88

7O

67

65

58 

SO

3,591

120

0.645

0.72

July

47

46

44

41

282

315

194

156

271

171

166

157

151

144

122

102 

10O

86

71

*268

669

581

1.6KT

620

410

446

504

254

184 

154

155

8,241

266

1.45

1.65

Aug.

122

106

95

84

79

76

74

71

64

*58

54

50

55

62

60

50 

46

45

44

42

39

56

55

43

44

36

35

56

108 

76

6O

1,877

60.5

O.525

0.38

Sept.

434

169

124

95

78

67

98

79

64

58

54

52

48

46

64

570 

4O6

*298

197

425

24Q

184

297

865

325

257

186

158

157 

124

6,177

206

1.11

1.24

Calendar year 1955: Max 6,790 Mln 13 Mean 280 Cfsm 1.51 In. 20.40

Water year 1955-56: Max 6,790 Mln 22 Mean 407 Cfsm 2.19 In. 29.80

Peak discharge (base. 5.800 cfs).--Oct. 16 (2 a.m.) 10,200 cfs (9.09 ft); Mar. 7 (10:15 a.m.) 

8,480 ofs (8.65 ft)j Apr. 4 (9 p.m.) 6,620 cfs (7.99 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

stations.

c Backwater from debris.

Note. Stage-discharge relation affected by Ice Nov. 29 to Dec. 2, Dec. 7-9, 14-24, Dec. 26 to 

Jan. 9, Jan. 14-16, Jan. 18 to Feb. 6, Feb. 22-24, 29, Mar. 1, 16-21.
336 SUSQUEHANNA RIVER BASIN

Dean Creek at Spencer, N. Y.

Location.--Lat 42°12'10", long 76°29'50", on right bank 25 ft upstream from small tributary, 85 ft downstream from highway bridge on Spencer Road at Spencer, Tioga County, 

and 1.2 miles upstream from South Branch Catatonk Creek.

Drainage area. 8.03 sq mi.

Records available.--July 1954 to September 1956.

Gage.--Water-stage recorder and concrete control with V-notch weir. Datum of gage is 

~iJ79.74 ft above mean sea level, datum of 1929.

Extremes.--Maximum discharge during year, 544 cfs Oct. 15 (gage height, 5.62 ft), from 

rating curve extended above 240 cfs on basis of contracted-opening determination of 

peak flow; no flow at times.

1954-56: Maximum discharge, that of Oct. 15, 1955; no flow at times in each year.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair. Since October 1955, high flows regulated by Pylkas Reservoir on Dean 

Creek (capacity, 180.7 acre-ft) and Pelto"Reservoir on Burheight Creek (capacity, 

53.4 acre-ft).

Rating tables, water year 1955-56, except periods 

height, in feet, and discharge, in cubic fee

f ice effect (gage 

per second)

Oct. 31 to Sept. 30

1.9 

4.6

3.2 

3.4 

3.6 

3.8

4.0 

5.0

1.96

2.2 

2.4

2.6

.1

.5 

1.5

2.8 

3.0 

3.2 

3.4

111

370 Note. Same as preceding 

table above 3.4 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Itotal

Mean

Cf 3IU

In.

Oct.

0

0

0

0

O

7.7

3.0

17

3.7

1.7

.7

.4

.3

47

*519

233

77

34

21

15

12

9.0

7.1

*9.5

9.9

6.8

5.4

4.4

3.9

79

*51

978.5

31.6

3.94

4.53

Nov.

24

17

14

12

10

8.8

7.8

7.0

6.3

6.3

7.6

6.3

5.5

12

10

*72

27

18

15

13

12

11

19

16

11

10

9.8

b8.6

b6.2

b5.8

409.0

13.6

1.69

1.89

Dec.

5.7

5.4

7.0

11

8.4

b5.8

b4.9

4.9

b4.8

b4.2

b3.9

3.8

3.3

*2.3

3.1

2.2

b2.2

bl.B

bl.6

bl.Z

b.7

b.6

.7

1.3

6.5

4.6

2.6

bl.4

1.1

1.2

.9

109.1

3.52

0.438

0.51

Jan.

0.9

.7

.7

.9

1.2

1.2

1.0

.7

.6

2.4

14

10

7.2

5.7

5.2

*4.1

3.5

b2.6

bl.9

bl.8

bl.7

1.6

1.7

bl.5

1.2

b.9

b.7

b.5

b.8

1.1

1.4

79.4

2.56

0.319

0.37

Feb.

bl.O

b.9

1.1

b.8

1.0

1.0

3.2

5.5

5.7

6.1

6.7

8.5

9.1

7.6

12

10

b7.8

15

14

 11

b8.8

b8.2

b7.6

b6.2

53

31

16

b!2

b9.8

260.6

8.99

1. 12

1.21

Mar.

bS.8

29

41

37

26

132

*271

174

66

46

64

38

27

23

b!8

b9.6

blO

b!4

b!2

blO

b9.2

b9.8

11

blO

blO

10

blO

b9.8

b9.2

11

11

1,167.4

37.7

4.69

5.41

Apr.

b20

b30

96

166

100

62

86

66

48

59

55

40

*30

23

20

28

19

17

13

11

11

12

16

13

10

13

12

14

28

21

1,139

38. 0

4.73

5.28

May

15

17

16

12

11

11

1£

8.3

7.2

8.0

7.1

26

IS

10

8.6

9.2

7.7

8.4

7.4

5.9

4.9

4.3

3.7

3.1

*2.3

1.8

2.3

2.7

1.6

1.3

1.3

250.1

8.07

1.00

1.16

June

5.8

3.2

4.6

2.3

1.5

1.1

.8

.5

.5

.4

.2

O

0

.1

.8

.5

.6

.1

0

0

0

*0

0

.8

.1

0

0

0

0

0

23.9

0.80

o.ioo

0.11

July

0

0

0

0

15

6.1

2.4

1.1

2.0

.5

.7

.4

1.5

3.2

.8

.2

.1

ao

ao *14

21

35

27

13

8.8

7.3

4.8

3.2

1.7

1.1

.7

171.6

5.54

0.690

0.79

Aug.

0.6

.4

.1

0

0

0

0

0

0

*0

o

0

o

o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

4.9

^8

.2

7.0

0.226

0.028

O.O3

Sept.

0.1

0

0

O

0

0

0

0

0

0

o

0

0

0

0

7.9

5.2

3.2

.8

3.4

1.1

.4

26

*T8

7.3

4.9

3.3

2.2

1.4

1.1

86.3

2.88

0.359

0.40

Calendar year 1955: Max 319 Mln o Mean 8.19 Cfam 1.02 In. 13.84

Water wauer year year 1955-55: I9bb-bo: Max nax 319 319 Mln min o o Mean mean 12.8 1L1.U Cfsm ui sm i.ba 1.59 In. LJl > 21.69 21.by

Peak discharge (base. 200 cfs).--Oct. 15 (l p.m.) 544 cfs (5.62 ft); Mar. 7 (4:45 a.m.) 465 cf 

(5.34 ft); Apr. 4 (6 p.m.) 265 cfs (4.61 ft); July 22 (7:30 p.m.) 243 cfs (4.53 ft); Sept. 23 

(7:45 p.m.) 259 cfs (4.59 ft).

* Discharge measurement or observation of no flow made on this day.

a No gage-height record; discharge estimated from reconstructed gage-height graph based on recorded range in stage, weather records, and records for nearby stations.

b Stage-discharge relation affected by Ice.
SUSQUEHANNA RIVER BASIN 337

Susquehanna River near Waverly, N. Y.

Location.--Lat 41°59'05", long 76°30'05", on left bank 1,000 ft upstream from Cayuta 

Creek, 2,000 ft upstream from bridge at Sayre, Pa., and 1\ miles downstream from 

Waverly, Tioga County.

Drainage area,--4,780 sq mi, approximately.

Records -available. February 1937 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 743.96 ft above mean sea level (levels by 

Corps of Engineers). Prior to Nov. 1, 1939, at datum 1 ft higher.

Average discharge. 19 years, 7,610 cfs.

Extremes.--Maximum discharge during year, 83,700 cfs Mar. 8 (gage height, 16.84 ft); minimum, 660 cfs Aug. 23 (gage height, 1.08 ft).

1937-56: Maximum discharge, 112,000 cfs Dec. 31, 1942 (gage height, 19.70 ft); maximum gage height, 19.84 ft Mar. 22, 1948; minimum discharge, 247 cfs Sept. 24, 25, 

1939 (gage height, 0.52 ft).

Flood In March 1936 reached a stage of about 21.4 ft, from flood profile (discharge, 

128,000 cfs).

Remarks. Records good except those for periods of ice effect, doubtful or no gageheight record, which are fair.

Rating tables, water year 1955-56, except periods of ice effect (gage height, in 

feet, and discharge, in cubic feet per second)

Oct. 1-16

1.1 735 4.0 7,700

1.5 1,300 6.0 16,300

2.0 2,220 9.0 32,4OO

3.0 4,710 14.0 63,300

Oct. 16 to Apr. 7

2.0 2,220

3.0 4,710

4.0 7,780

6.0 15,900

9.0 31,200

13.0 55,000

17.0 85,000

Apr. 8 to Sept. 30

1.1 680 3.0 4,640

1.5 1,210 4.0 7,780

2.0 2,130

Note. Same as preceding table above 4.0 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,000

1,070

1,030

888

848

1,100

4,420

6,360

7,390

5,890

4,580

3,600

3,000

3,490

16,200

61,200

38,500

31,400

27,200

19,500

* 14, 900

11,300

9,150

7,710

8,150

10 , 800

10,300

8,200

6,790

10,300

36,600

372,866

12,030

2.52

2.90

Nov.

28,100

21,400

15,900

13,500

12,700

12,200

10,300

8,960

8,070

7,430

7,160

7,640

7,740

7,820

10 , 800

18,400

24,700

20,200

15,800

13,500

*11,900

10,800

9,870

9,940

9,940

9,220

8,360

7,890

7,540

6,500

364,280

12,140

2.54

2.83

Dec.

5,920

5,370

5,320

5,710

10,800

15,200

12,800

10,200

8,620

8,100

7,570

7,090

6,700

6,100

*5,860

b5,600

b4,800

4,550

b4,500

b4,200

b3,500

b3,000

2,900

3,290

4,280

b5,200

b5,400

b4,900

b4,500

b4,100

b3,800

189,880

6,125

1.28

1.48

Jan.

b3,600

b3,500

3,220

3,290

b3,400

b3,400

b3,200

b2,900

b2,400

2,880

4,370

9,220

11,900

10 , 500

9,030

8,210

*6,920

6,010

5,370

4,680

4,410

b4,200

b4,100

b3,700

b3,400

b3,200

b3,000

b2,900

b2,900

b3,000

b3,200

146,010

4,710

0.985

1.14

Feb.

b3,300

b3,100

b3,OOO

b2,900

b2,900

b2,800

3,190

3,620

4,010

4,390

5,090

6,330

8,000

6,890

6,860

7,540

6,630

6,990

9,410

9,560

*7,780

6,350

5,660

5,040

6,450

15,200

16,700

14,700

11,900

__ 

196,290

6,769

1.42

1.53

Mar.

9,980

9,490

14,300

19,700

17,800

25,400

50,900

78,100

76 , 200

54,800

*42,100

37,400

32,500

*28,500

25,100

21,500

17,500

15,300

14,200

12,700

11,300

10,800

10,100

10,100

9,560

8,920

8,880

8,810

8,440

8,250

8,140

706,770

22,800

4.77

5.50

Apr.

8.140

10,100

15,600

36,400

64,500

70,900

71,800

71,100

55,600

45,600

40 , 800

36,900

*35,800

35,000

32,600

34,100

41,300

43,000

37,800

31,000

25,000

21,800

22,100

23,000

20,300

17,700

17,000

16,000

16,700

21,500

1,019,140

33,970

7.11

7.93

May

25,500

21,100

18,000

15,600

13,600

12,300

12,000

11,000

9,560

8,510

8,400

9,030

10 , 100

9,980

*8,770

7,920

8,250

8,210

8,000

7,160

6,540

6,070

5,610

5,250

5,220

4,900

4,440

4,530

4,840

4,560

4,220

286,970

9,257

1.94

2.23

June

5,180

8,210

9,320

10.100

9,220

7,500

6,280

5,610

4,870

4,360

4,160

4,190

3,890

3,650

3,920

3,470

3,050

2,740

2,280

2,110

*1,950

1,710

1,770

2,030

2,170

1,870

1,750

1,660

1,570

1,550

122,140

4,071

0.852

0.95

July

1,480

1,390

1,260

1.230

1,590

3,390

3,340

3,050

2,880

2,640

2,390

2,170

2,130

2,150

2,130

*2,110

1,990

1,690

1,500

1,980

4,220

5,980

8.250

7,850

5,730

5,490

4,440

3,370

2,670

2,200

1,830

94,520

3,049

0.638

0.74

Aug.

1,640

1,480

dl,340

dl,230

dl,110

dl,020

d994

980

*980

924

898

838

802

814

826

838

814

802

790

746

702

691

680

702

724

746

724

779

966

1,160

1,080

28,820

930

0.195

0.22

Sept.

2,090

3,030

2,240

1,750

1,440

1,260

1,070

1,070

994

886

826

814

779

713

702

994

*3 , 850

5,080

4,670

4,030

5,160

4,730

3,760

6,120

10,400

9,000

6,130

4,500

3,810

3,520

95,418

3,181

0.665

0.74

Calendar year 1955: Max 61,200 Min 424 Mean 7,734 Cfsm 1.62 In. 21.97

Water year 1955-56: Max 78,100 Min 680 Mean 9,899 Cfsm 2.07 In. 28.19

Peak discharge (base, 52.000 c fa). Oct. 16 (3 p.m.) 72,200 cfs (15.27 ft); Mar. 8 (9 p.m.) 83,700 

cfs (16.84 ft); Apr. 8 (3:30 a.m.) 74,800 cfs (15.72 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice (no gage-height record Feb. 5, 6).

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

record for adjacent days and records for stations at Vestal and Towanda.

Note.--No gage-height record Oct. 22-29, Nov. 26 to Dec. 6, Feb. 7-10, 19-24, Feb. 29 to Mar. 3, 

Mar. 9, 10, 16-22, Mar. 3O to Apr. 4, Apr. 18-21, Aug. 8, 9, Sept. 12-17; discharge estimated from 

reconstructed gage-height graph based on recorded range in stage and records for stations at Vestal 

and Towanda.
338 SUSQUEHANNA RIVER BASIN

Corey Creek near Mainesburg, Pa.

Location. Lat 41°47'25", long 77°00'55", on right bank 30 ft upstream from township 

bridge, 500 ft upstream from small tributary, 1.1 miles downstream from Mainesburg, 

Tioga County, 3? miles east of Mansfield, and 4^ miles upstream from mouth.

Drainage area. 12.2 sq mi.

Records available. May 1954 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,337.50 ft above mean sea level, datum of T9S9.

Extremes.--Maximum discharge during year, 2,210 ofs Oct. 14 (gage height, 7.88 ft), from 

rating curve extended above 390 cfs on basis of slope-area determination of peak flow; 

minimum, 0.4 cfs Aug. 23; minimum gage height, 1.24 ft July 1.

1954-56: Maximum discharge, that of Oct. 14, 1955; no flow at times.

Remarks. Records good except those for periods of ice effect, which are fair. This station is operated in connection with a study of the effect of comprehensive soil conservation measures on streamflow and suspended sediment loads. Records of suspended sediment loads and water temperatures for the water year 1956 are given in WSP 1450.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, In feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 18 to Nov. 15)

Oct. 1 to Nov. 16 Nov. 17 to Aug. 6 Aug. 7 to Sept. 3O

1.5

1.6

1.7

1.8 

2.0 

2.3

0.9

2.0

3.6

5.8

12.5

26

2.8 

3.0 

3.5 

4.0 

5.1

60

78

146

261

660

1.2

1.3

1.4

1.5 

1.7

0.4 

1.2 

2.2 

3.9 

9.2

1.9 

£.2 

£.9 

3.5 

4.2

101

182

332

1.2

1.3

1.4

1.5

1.6 

1.8

0.2

.6

1.4

3.0

5.5

13

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1.1

1.0

.9

.9

.9

3.2

£.4

7.6

£.9

2.3

£.0

1.6

1.5

*627

T4T

256

110

49

32

£4

19

16

13

19

£0

14

12

*11

10

1£2 

53

1,582.3

51.0

4.18

4.82

Nov.

33

24

22

19

16

14

12

11

9.7

9.0

9.7

8.3

32~7.6

23

~£B" 114

31

28

24

22

19

27

21

17

15

14

13

11

9.6

661.9

22.1

1.81

2.02

Dec.

8.6

7.9

10

15 *T<y

7.9

6.2

5.7

6.2

6.6

5.7

5.2

5.2

5.5

5.0

5.2

5.0

5.2

5.0

3.7

3.4

375

4.7

4.5

6.4

6.0

4.7

3.7

3.5

3.7

3.6

182.5

5.89

0.483

0.56

Jan.

3.5

2.9

3.0

*3.3

3.1

2.7

1.9

 Or 1.8

45

60

35

15

11

10

8.2

6.8

6.2

6.0

6.6

6.5

5.8

5.4

5.8

5.6

5.0

4.5

4.0

3.8

16

40

331.4

10.7

0.877

1.01

Feb.

10

5.5

5.2

4.1

5.7

3.7

6.0

20

*21

80

43

46

30

28

90

28

25

84

42

21

17

13

12

12

150

27

15

10

9.2

861.4

29.7

2.43

2.63

Mar.

83 8.O

38

23

37

314

T9U

189

66

45

45

35

*27

25

25

20

22

21

18

15

12

11

12

11

10

12

15

14

13

15

15

1,383.0

44.6

3.66

4.22

Apr.

28

69

25£

182

96

63

118

86

8£

67

49

39

33

28

26

63

*38

30

25

20

17

17

20

17

13_

14

13

14

27

19

1,565

52.2

4.28

4.77

May

16

16

16

13

12

13

23

13

11

11

11

19

27

TT

13

13

11

11

9.6

7.9

7.0

6.0

5.5

5.0

4.6

3.9

4.1

3.7

*3.5

3.4

37!

333.6

10.8

0.885

1.02

June

7.4

5.5

9.4

672

5.0

4.8

3.9

3.5

3.4

3.4

2.8

2.4

2.2

2.1

2.1

1.9

1.8

1.6

1.4

1.4

1.4

1.4

1.4

1.6

1.6

1.4

1.6

1.2

1.1

.1!

85.8

2.86

0.234

0.26

July

0.9

T78

1.2

1.1

17

4.7

3.0

2.1

5.1

4.2

*2.7

2.2

2.6

2.6

2.0

1.6

1.6

1.4

1.2

2.7

4.2

2.4

2.6

2.0

1.6

1.9

3.0

1.9

1.6

1.4

1.2

85.5

2.76

0.226

O.26

Aug.

1.2

1.2

1.0

.8

1.7

4.0

2.1

1.2

.9

.8

.6

.6

.6

.8

.6

1.0

.9

.6

1.7

1.0

.8

*.6

376" .5

.9

.7

.6

.6

2.1

2.2 5 '.6

41.5

1.34

0.110

0.13

Sept.

3.8

1.8

1.1

.9

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

..8

4.4

9.8

372

1.8

3.7

2.5

1.8

2.0

1.7

1.3

1.1

1.0

.9

.8

.8

51.8

1.73

0.142

0.16

Calendar year 1955: Max 627 Mln 0 Mean 12.6 Cfsm 1.03 In. 14.03

Water year 1955-56: Max 627 Mln 0.5 Mean 19.6 Cfsm 1.61 In. 21.86

Peak discharge (base, 280 cfs).--Oct. 14 (9:30 a.m.) 2,210 cfs (7.88 ft); Oct. 16 (7:30 p.m.) 

705 cfs (5.20 ft); Oct. 30 (9 a.m.) 447 cfs (4.56 ft); Nov. 16 (8 a.m.) 411 cfs (4.46 ft); Mar. 6 

(5 a.m.) 808 cfs (5.43 ft),- Apr. 3 (4 p.m.) 512 cfs (4.73 ft).

* Discharge measurement made on this day.

Hote. Stage-discharge relation affected by Ice Nov. 29, Dec. 1, 7, 8, 1O-13, Dec. 20 to Jan. 11, 

Jan. 14 to Feb. 10, Feb. 12 to Mar. 1, Mar. 16-28.
SUSQUEHANNA RIVER BASIN 339

Elk Run near Mainesburg, Pa.

Location. Lat 41°48'50", long 76°57'55", on left bank 250 ft downstream from highway 

bridge, half a mile upstream from small tributary, 2.7 miles northeast of Mainesburg, 

Tioga County, 5? miles upstream from mouth, and 5.8 miles east of Mansfield. Prior to 

Aug. 29, 1956, at site 250 ft upstream.

Drainage area. 10.2 sq mi.

Records available. May 1954 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,385.05 ft above mean sea level, datum of 

T929. Prior to Aug. 29, 1956, wire-weight gage and crest-stage indicator 250 ft upstream at same datum.

Extremes. Maximum discharge during year, 1,240 cfs Oct. 14 (gage height, 6.77 ft), from 

rating curve extended above 230 cfs on basis of slope-area determination of peak flow; 

minimum daily, 0.2 cfs July 3; minimum gage height, 0.27 ft Aug. 29. 

1954-56: Maximum discharge, that of Oct. 14, 1955; no flow at times.

Remarks. Records good except those for periods of ice effect, which are fair. This station is operated as the control station in connection with a study of the effect of 

comprehensive soil conservation measures on streamflow and suspended sediment loads of 

Corey Creek. Records of suspended sediment loads and water temperatures for the water 

year 1956 are given in WSP 1450.

Rating tables, water year 1955-56, except periods of ice effect (gage height. In feet, 

and discharge, In cubic feet per second)

1.4

1.45

1.5

1.55

i.'a 1.6

Oct. 1 to Mar. 6

2.0 

2.3 

2.6 

3.0 

4.0

Mar. 7 to Aug. 28 Aug. 29 to Sept. 30

18

34

61

130

370

1.25

1.3

1.4

1.5

1.6 

1.8

0.2

.3

.8

1.5

2.5

5.2

2.0 

2.2 

2.4 

2.7 

3.1 

3.6

10

19

33

70

152

270

0.25 

.3 

.35

.7

0.6

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0.6

.6

.4

.4

-i!

3.5

2.0

8.7

2.7

2.2

1.4

1.0

.9

*364

T66

236

164

60

30

22

17

14

11

19

21

15

11

*9.4

11

109 

59

1,363.1

44.0

4.31

4.97

Nov.

35

27

24

19

15

13

12

11

7.6

6.2

8.0

5.9

53 5.3

29

~42 103

30

25

22

21

18

25

20

16

14

14

12

10

9.0

649.0

21.6

2.12

2.37

Dec.

7.5

6.0

10

*I3~ 20

8.3

5.9

4.3

4.5

4.5

4.1

3.8

3.7

3.7

3.5

3.3

3.2

3.2

3.1

2.7

2.5

2.3

27?

3.0

5.0

4.5

3.5

2.8

2.7

2*8

2.7

152.5

4.92

0.482

0.56

Jan.

2.5

2.1

2.3

*4.0

2.9

1.7

1.4

1.3

T75

15

T9" 40

13

10

8.0

7.0

6.0

5.0

4.7

5.0

4.7

4.5

4.1

4.3

4.2

3.8

3.4

3.1

2.9

12

35

234.4

7.56

0.741

0.86

Feb.

8.0

4.5

3.7

3.0

2.7

2.7

6.0

4.0

*3.5

16

14

30

22

20

80

18

10

"55 170

26

14

9.0

7.0

6.0

130

80

35

32

22

861.1

29.7

2.91

3.14

Mar.

17

110

71

45

43

'236" 270

222

84

39

31

27

*23

21

17

13

14

12

11

10

9.0

a:o

7.4

7.0

6.6

7.5

8.5

8.0

7.0

7.5

8 9

1,403.4

45.3

4.44

5.12

Apr.

20

72

269

236

115

67

133

79

83

82

45

35

29

23

19

53

 28

21

16

13

12

10

16

12

8.6

8.9

8.6

15

20

12

1,531.1

51.0

5.00

5.58

May

9.5

10

10

8.4

7.8

8.5

13

8.9

7.3

8.9

8.4

20

26

IT

9.5

9.2

7.6

8.9

7.3

5.6

4.9

4.0

3.8

3.5

3.2

2.6

2.4

2.5

*2.2

2.4

i-jS

238.6

7.70

0.755

0.87

June

3.8

4.7

4.2

2.4

2.0

1.8

1.4

1.1

~4.2 17

2.3

1.7

1.5

1.2

1.2

1.0

.9

.8

.6

.6

.5

.6

.5

1.4

1.0

.6

.7

.6

.5

^4

61.2

2.04

0.200

0.22

July

0.3

.4

74" .2

16

4.0

2.5

1.5

4.4

2.9

 1.9

2.0

2.5

2.6

1.8

1.2

1.0

.8

.7

1.5

2.6

2.3

1.7

1.2

1.0

1.3

1.7

1.2

.9

.7

.6

63.8

2.06

0.202

0.23

Aug.

0.6

.6

.5

.4

.8

3.0

2.2

1.2

1.0

.8

.6

.5

.6

.9

.6

1.0

1.0

.5

1.5

1.0

.8

*.6

.5

2.6

1.0

.8

.7

.7

2.8

375" 4.2 

37.5

1.21

0.119

0.14

Sept.

3.4

2.2

1.8

1.4

1.2

1.5

1.5

1.2

1.1

1.0

1.0

1.1

1.1

.9

ITS

4.5

11

4.4

2.7

4.9

3.7

2.9

3.2

2.9

2.3

2.0

1.8

1.8

1.7

1.6

73.0

2.43

0.238

0.27

Calendar year 1955: Max 364 Mln 0 Mean 12.0 Cfsm 1.18 In. 15.91

Water year 1955-56: 1955-56: Max 364 564______Mln Mln0.2.2____Mean Mean18.2 Cfsm 1.78 In. 24.334.33________

Peak discharge (base. 250 cfs). Oct. 14 (10 a.m.) 1,240 cfs (6.77 ft); Oct. 16 (7 p.m.) 598 cfs 

(4.86 ft); Oct. 30 (1 p.m.) 258 cfs (3.55 ft); Nov. 16 (9:30 a.m.) 292 cfs (3.69 ft); Mar. 2 (3p.m 

300 cfs (3.72 ft); Mar. 6 (4 a.m.) 518 cfs (4.59 ft); Apr. 3 (5 p.m.) 455 cfs (4.34 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 28 to Dec. 3, Dec. 9 to Jan. 4, Jan. 8-12, 

Jan. 14 to Feb. 15, Feb. 18, 21-26, Feb. 29 to Mar. 2, Mar. 16-30.
340 SUSQUEHANNA RIVER BASIN

Tloga River at Tioga, Pa.

Location. Lat 41°54'30", long 77°07'45", on left bank 130 ft upstream from highway bridge 

at Tloga, Tioga County, and three-quarters of a mile upstream from Crooked Creek.

Drainage area.--282 sq ml.

Records available. June 1938 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 1,021.0 ft above mean sea level, datum of 

"1929. Prior to Sept. 9, 1953, at site 20 ft upstream at datum 2.11 ft higher. Sept. 9, 

1953, to Aug. 10, 1954, at temporary site 130 ft downstream at present datum.

Average discharge.--18 years, 330 cfs.

Extremes.--Maximum discharge during year, 25,700 cfs Oct. 14 (gage height, 12.69 ft), from 

rating curve extended above 3,800 cfs by logarithmic plotting; minimum, 23 cfs Oct. 5; 

minimum gage height, 1.32 ft Sept. 15.

1938-56: Maximum discharge, 39,000 cfs May 27, 1946 (gage height, 15.47 ft, present 

datum), from rating curve extended above 5,800 cfs on basis of slope-area and 

contracted-opening determination of peak flow; minimum, 4.5 cfs Aug. 10, 11, 1955; minimum 

gage height, that of Sept. 15, 1956.

Remarks.--Records good except those for periods of Ice effect, partly obstructed intake, 

or backwater from aquatic vegetation, which are fair.

Revisions (water years). WSF 871: 1938.

Rating tables, water year 1955-56, except periods of ice effect or backwater from aquatic 

vegetation (gage height, in feet, and discharge, in cubic feet per second)

1.9

2.0 

2.2 

2.4 

2.6 

3.0

54

95

151

322

3.5

4.0 

5.0 

7.0 

9.0

660

1,110

2,310

5,910

11,000

1.3

1.4

1.5 

1.7 

2.0 

2.4

Oct. 14 to Sept. 30

39 3.0

44 4.0

51 5.0

7.0

146 9.0

289

616

1,420

2,600

6,030

11,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29 

30

51

Total

Mean

Cfsm

In.

Oct.

c28

c26

c26

c25 

c24

C46

086 

0155

cllO

c72

»c58

c50

c48

9,520

*4,270

4,010

3,770

1,800

1,150

842

648

548

450

451

696

519

410

560

340 

1 350

1^750

35,598

1,084

5.84

4.45

Nov.

940

715

597

566 

467

590

330 

*280

240

210

210

200

180

820

507

2.500

1,420

872

742

674

616

560

590

756

556

478

445

400

270 

280

17,591

586

2.08

2.32

Dec.

260

250

260

550 

570

280

*215 

205

199

170

160

155

140

155

150

110

120

110

110

96

92

92

104

118

240

520

155

110

102 

94

22.

5,558

172

0.610

0.70

Jan.

86

78

86

*90 

90

88

86 

76

76

165

400

260

150

120

118

108

98

84

76

76

82

82

82

72

74

70

70

64

64 

68

78

5,217

104

0.569

0.42

Feb.

70

72

72

60 

66

66

*80

114

240

370

290

240

220

180

500

470

530

720

640

500

520

190

180

170

1.600

995

550

580

520

10,005

545

1.22

1.32

Mar.

280

1,010

887

759 

641

*4,820

4,410 

5.000

2,550

1,530

1,590

1,250

925

855

722

*560

560

540

500

410

360

360

386

412

360

376

412

418

381

418

53,628

1,085

3.85

4.43

Apr.

551

994

5,310

4.420 

3,460

2,550

2,790 

2,420

1,850

1,740

1,490

1,250

1,150

970

895

 1,290

1,150

888

742

620

520

540

524

548

440

420

400

570

580

59,112

1,504

4.62

5.16

May

*380

351

459

556 

322

285

595

418

556

327

517

452

864

604

475

445

397

566

556

285

252

206

189

175

155

141

155

155

118

Tfilf

10,044

524

1.15

1.52

June

196

196

222

206 

161

146

128 

115

102

106

95

81

*75

71

158

97

102

83

69

65

60

60

60

63

68

57

55

55

50 

46

3,044

101

0.558

0.40

July

44

50

50

45 

189

 201

126 

84

88

91

77

74

79

150

94

65

56

52

47

74

163

184

225

142

99

87

191

133

99

69

3,209

104

0.369

0.42

Aug.

63

60

*54

51 

59

166

m86

71

60

56

57

65

57

51

53

48

82

79

57

51

47

76

61

49

45

44

47 

53

86

2,185

70.4

0.250

0.29

Sept.

100

74

59

50 

46

44

52

46

45

41

41

41

41

40

41

72

122

158

86

100

104

81

75

72

65

57

*53

51

50 

47

1,952

65.1

0.231

0.26

Calendar year 1955: Max 9,520 Min 5.6 Mean 520 Cfsm 1.13 In. 15.41

Water year 1955-56: Max 9,520 Mln 24 Mean 445 Cfsm 1.58 In. 21.47

Peak discharge (base. 6.500 cfs). Oct. 14 (1:15 p.m.) 25,700 cfs (12.69 ft); Oct. 16 (9:30 p.m.) 

7,460 cfs (7.66 ft)j Mar. 6 (7:15 a.m.) 8,400 cfs (8.O5 ft).

* Discharge measurement made on this day.

c Backwater from aquatic vegetation.

Note. Stage-discharge relation affected by ice Dec. 10 to Feb. 25, Feb. 28, 29, Mar. 1, 16-22, 

25. Partly obstructed intake Oct. 27-51, Nov. 6-14, Nov. 28 to Dec. 8, Apr. 20-22, Apr. 25 to 

May 1; discharge computed on basis of discharge measurements, weather records, engineers' notes, and 

records for nearby stations.
SUSQUEHANNA RIVER BASIN 341

Crooked Creek at Tioga, Pa.

Location.--Lat 41°54'05", long 77°08'55", on right bank 30 ft upstream from New York Cen- 

 tral Railroad bridge, 1 mile southwest of Tioga, Tioga County, 1 mile upstream from 

Elkhom Creek, and 3 miles upstream from mouth.

Drainage area. 122 sq mi.

Records available.--May 1953 to September 1956.

Gage. Water-stage recorder.

Extremes. Maximum discharge during year, 10,900 cfs Oct. 14 (gage height, 12.73 ft), from 

rating curve extended above 4,600 cfs' on basis of slope-area determination of peak 

flow; minimum, 3.3 cfs Oct. 4 (gage height, 2.585 ft).

1953-56- Maximum discharge, that of Oct. 14, 1955; minimum, 2.15 cfs Aug. 10, 1955 

(gage height, 2.455 ft).

Remarks.--Records good except those for periods of ice effect, which are fair. 

Revisions (water years).--WSP 1332: 1953.

Rating tables, water year 1955-56, except periods of Ice effect (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Mar. 6 Mar. 7 to Aug. 6

2.58

2.6

2.8

3.0

3.5

4.0

4.5

3.2

3.6

12

22

58

121

218

5.0

6.0

7.0

8.0

9.0

10.0

11.0

343

640

975

1,350

1,880

2,750

4,470

2.6 

2.8 

3.0 

3.3

5.5

15

26

47

3.6 

4.0 

4.5

5.0

76

126

218

343

Note. Same as preceding 

table above 5.0 ft.

Aug. 7 to Sept. 30

2.6 7.1

2.8 18

3.0 30

3.5 73

4.0 133

4.5 221

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

4.0

3.8

3.6

e

10

14

74

38

24

*18

14

13

*4,200

 *2A60>

811

998

540

338

236

175

138

104

102

183

138

99

85

77

208

260

11,075.5

357

2.93

3.38

Nov.

164

136

121

113 

94

80

*72

64

58

54

56

54

47

356

178

1.010

530

332

285

251

234

207

275

291

192

169

156

140

b88

91

5,898

197

1.61

1.80

Dec.

b74

72

74

122 

128

81

*67

62

59

b50

b46

46

39

38

37

b28

b33

b30

b30

b24

b23

b23

26

29

136

b54

b38

b32

30

29

b26

1,586

51.2

0.420

0.48

Jan.

b26

b23

25

*26 

26

25

24

b20

20

44

119

7T

40

28

28

26

b24

b20

b!8

b!8

b!9

19

19

b!7

b!8

17

17

16

16

18

20

847

27.3

0.224

0.26

Feb.

18

19

19

b!6 

T8

17

23

38

93

b!50

b!40

74

65

*b50

b240

b!85

b80

289

269

185

bl!2

b64

b58

b45

1.160

bl,020

b245

133

92

4,917

170

1.39

1.50

Mar.

78

583

495

396

310

*2.890

*2,790

2,330

843

532

487

400

308

285

239

*b!75

b!95

b!70

145

123

110

108

116

131

117

120

152

157

140

142

154

15,221

491

4.02

4.64

Apr.

214

464

1,740

2.260 

1,260

706

997

824

665

579

450

360

306

253

223

334

*271

225

189

157

134

142

146

144

118

118

113

109

213

181

13,895

463

3.80

4.24

May

*150

147

166

134 

119

109

201

132

113

115

112

164

339

24T

181

168

140

125

111

93

80

72

65

58

50

45

42

41

37

33

35

3,618

117

0.959

1.10

June

59

49

52

51 

42

37

33

30

28

27

24

*22

20

19

21

19

18

17

15

14

14

14

13

15

14

13

14

13

12

11

730

24.3

0.199

0.22

July

10

13

13

11 

26

*33

22

17

17

17

14

14

16

35

25

17

15

13

12

21

67

53

33

24

18

17

49

27

19

15

14

697

22.5

0.184

0.21

Aug.

12

12

*9.9

9.5 

12

100

104

58

38

28

23

19

18

23

20

16

15

16

21

22

17

15

13

40

29

19

16

15

16

14

19

789.4

25.5

0.209

0.24

Sept.

50

"63 151

39 

57

35

23

19

16

15

14

14

13

12

12

32

48

41

51

84

92

87

86

54

32

21

*18

17

16

15

1,227

40.9

0.335

0.37

Calendar year 1955: Max 4,200 Mln 2.2 Mean 97.3 Cfsm 0.798 In. 10.83

Water year 1955-56 : Max 4,200 Mln 3.5 Mean 165 Cfsm 1.35 In. 18.44

Peak discharge (base. 2.400 efa) . Oct. 14 (8 p.m.) 10.900 efs (12.73 ftl; Feb. 25 flO:15 p.m.1 

4,190 cfs (10.88 ft); Mar! 6 (8:30 a.m.) 4,760 cfs (11.11 ft); Mar. 8 (2 p.m.) 3,500 cfs (10.53 ft); 

Apr. 3 (10:30 p.m.) 3,240 cfs (10.37 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

505690 O - 59 - Z3
342 SUSQUEHANNA RIVER BASIN

Cowanesque River near Lawrencevllle, Pa.

Location. Lat 41°59'10", long 77°09'00", on left bank three-quarters of a mile downstream 

from Cook Creek, if miles southwest of Lawrencevllle, Tloga County, and 2| miles upstream from mouth.

Drainage area. 295 sq ml.

Records available. June 1951 to September 1956.

Gage. Water-stage recorder.

Average discharge. 5 years, 287 cfs.

Extremes. Maximum discharge during year, 18,200 cfs Oct. 14 (gage height, 10.47 ft), from 

rating curve extended above 7,200 cfs by logarithmic plotting; minimum, 8.0 cfs Oct. 5 

(gage height, 2.065 ft).

1951-56: Maximum discharge, that of Oct. 14, 1955; maximum gage height, 10.99 ft 

Feb. 28, 1955 (Ice jam); minimum discharge, 1.7 cfs Sept. 14, 15, 1954; minimum gage 

height, 1.90 ft Aug. 10, 11, 1955.

Remarks.--Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 8 Mar. 8 to Sept. 30

83

194

388

677

1,060

1,560

3,040

5,170

11,500

2.0 

2.2 

2.4 

2.7 

3.0 

3.5

12

32

66

145

258

505

7.0 

8.0

830

1,750

3,150

5,170

7,970

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

15 

13

12

9.6

8.6

15

37

256

136

83

61

*51

45

8.360

*4,790

2,260

2,560

1,120

684

470

347

292

234

217

522

373

266

220

197

675

739

25,088.2

809

2.74

3.16

Nov.

408 

329

281

266

224

191

*169

148

134

123

120

115

102

1,450

584

d4,490

dl,550

d871

d644

d562

498

438

620

772

438

374

342

320

240

250

17,053

568

1.93

2.15

Dec.

235 

230

235

643

572

325

*289

252

234

165

150

140

120

116

110

82

92

86

88

76

74

76

78

94

470

160

116

96

90

86

5,658

183

0.620

0.71

Jan.

76 

68

74

*76

76

74

72

62

62

160

500

270

150

96

94

88

80

66

60

58

64

64

64

56

56

54

54

52

52

68

2,904

93.7

0.318

0.37

Feb.

54 

58

58

46

56

56

72

120

280

440

360

230

200

*160

600

500

270

780

700

440

260

215

180

160

2,250

1,200

451

279

190

10,665

368

1.25

1.34

Mar.

250 

947

1,130

830

585

*d7,850

8.580

7,420

2,220

1,550

1,920

1,340

882

806

613

d440

d450

d440

d390

d330

d300

d300

d320

d340

d320

d330

d390

d400

d360

d370

d415

42,818

1,381

4.68

5.40

Apr.

d489 

1,130

4,980

5,720

3,090

1,800

2,520

2,140

1,600

1,430

1,070

823

684

553

478

935

*746

601

505

d425

d365

d476

d438

483

360

355

350

321

764

711

36,342

1,211

4.11

4.58

May

*500 

430

541

390

350

316

662

390

307

345

370

728

1.580

875

625

571

472

435

385

307

246

213

183

165

139

121

112

112

102

89

92

11,953

336

1.31

1.51

June

186

159

194

142

124

102

87

80

76

63

*55

46

42

40

57

53

48

38

32

29

29

25

26

48

43

36

31

26

23

2,214

73.8

0.250

0.28

July

19 

20

19

20

149

*236

105

69

69

71

53

70

115

124

116

76

59

51

46

92

493

308

179

130

99

84

256

136

102

78

65

3,509

113

0.383

0.44

Aug.

57 

49

*42

34

36

202

330

218

133

115

94

73

63

82

76

55

46

40

44

66

49

39

33

125

107

63

49

43

90

134

 379

2,966

95.7

0.324

0.37

Sept.

226 

728

32S

206

148

121

124

94

76

65

59

57

53

46

48

323

314

287

165

148

142

121

112

124

102

82

71

*65

59

55

4,549

152

0.515

0.57

Calendar year 1955: Max 8,380 Mln 2.4 Mean 270 Cfsm 0.915 In. 12.43

Water year 1955-56: Max 8,580 Mln 8.6 Mean 453 Cfsm 1.54 In. 20.88

Peak discharge (base, 6,500 cfs).--Oct. 14 (10:45 p.m.) 18,200 cfs (10.47 ft); Nov. 16 (about 

2:15 p.m.) about 11,400 cfs (about 8.98 ft)) Mar. 6 (about 9:15 a.m.) about 12,700 cfs (about 

9.30 ft); Mar. 8 (1:45 p.m.) 13,200 cfs (9.41 ft); Apr. 3 (10:30 p.m.) 9,550 cfs (8.48 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of gage heights, engineers' and observer's notes, weather records, and records for nearby stations.

Note.--Stage-discharge relation affected by Ice Nov. 28 to Dec. 3, Dec. 10 to Feb. 25, Feb. 29, 

Mar. 1.
SUSQUEHANNA RIVER BASIN 343

Tioga River at Lindley, N. Y.

Location.--Lat 42°01'45", long 77"07'55", on left bank Just downstream from highway bridge 

at Lindley, Steuben County, 6 miles upstream from Canisteo River.

Drainage area.--770 sq mi, approximately.

Records available.--January 1930 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 963.94 ft above mean sea level, adjustment 

of 1912 (levels by Corps of Engineers). Prior to Feb. 9, 1937, wire-weight gage on 

bridge at same datum.

Average discharge. 26 years, 795 cfs.

Extremes. Maximum discharge during year, 50,400 cfs Oct. 14 (gage height, 20.18 ft, from 

floodmark); minimum, 39 cfs Oct. 5, 6 (gage height, 2.97 ft).

1930-56: Maximum discharge, 75,000 cfs May 28, 1946 (gage height, 22.87 ft, from 

high-water mark in gage house), from rating curve extended above 31,000 cfs on basis 

of velocity-area and slope-area studies at gage height 19.2 ft and conveyance study and 

slope-area determination at gage height 22.87 ft; minimum, 6.1 cfs Sept. 1, 1939.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are fair.

Revisions (water years).--WSP 871: 1938.

Rating tables, water year 1955-56, except periods of Ice effect (gage height. 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 6 Mar. 6 to Sept. 30

2.9 

3.1 

3.5 

4.0 

4.5

26

68

196

403

680

5.0

7.0

10.0

14.0

16.0

1,070

3,150

7,57O

15,90O

23,OOO

3.1 

3.5 

4.0 

4.5 

5.0

72

200

401

675

1,040

7.0 3,140

10.0 7,570

13.O 13,30O

15.0 19,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

52

47

45

43

40

52

100 

481

360

211

 157

126

114

20.900

*18,300

8,O2O

9,980

4,46O

2,760

1,980

1,440

1,17O

921

810

1,650

1,240

921

765

694

2,240

3 s 6 9O

83,769

2,702

3.51

4.05

Nov.

1,940

1,480

1,210

1.16O

929

788

68O 

*597

528

490

480

475

436

3,170

1,73O

7.610

4,730

2.58O

2.O9O

1,830

1,630

1,460

1,570

2,320

1,420

1,220

1.11O

1,000

660

640

47,963

1,599

2.08

2.32

Dec.

560

573

555

1,21O

1.540

*833

660 

579

555

465

410

390

330

320

310

270

29O

270

270

235

220 225"

24O

280

940

720

390

270

260

250

2 3O

14,65O

473

0.614

0.71

Jan.

230

21O

230

*220

23O

220

210 

185

185

230

760

820

439

300

290

270

240

215

19O

185

205

205

200

17O

175

170

170

16O

160

170

19O

7,834

253

O.329

0.38

Feb.

165

170

170

140

150

150

»16O 

240

520

660

1,000

640

600

520

1,18O

1,500

780

1,400

2,100

1,400

940

560

520

560

4,OOO

4.020

1,650

1,02O

660

27,575

951

1.24

1.33

Mar.

600

2,700"

3,310

2,610

1,88O

*17,000

17,8OO 

16,500

6,630

4,130

4,190

3,650

2,430

2,210

1,780

1,450

1,020

1,250

1,140

920

800

800

875

905

790

875

1,020

1,050

973

958

1,100

103,346

3,334

4.33

4.99

Apr.

1,230

2,840

10,300

14.200

9,540

5,620

7,210 

6,350

4,570

4,530

3,630

2,850

2,420

1,990

1,760

*2,710

2,490

1,900

1,570

1,300

1,070

1,200

1,14O

1,280

973

912

912

838

1,670

1,570

100,575

3,352

4.35

4.86

May

*1,18O

1,020

1,300

997

89O

794

1,620 

1,080

838

822

868

1,390

3.8OO

2.O1O

1,450

1,300

1,110

989

890

738

604

522

470

432

380

338

313

305

285

254

246

28,235

911

1.18

1.36

June

469

484

419

485

384

333

293 

261

234

223

204

178

*164

150

213

196

182

171

144

130

121

121

118

118

140

130

115

112

103

92.

6,487

216

0.281

0.31

July

83

86

86

83

263

*551

287 

196

175

186

161

168

215

296

275

182

8135

alia

a!06

181

727

643

451

341

254

215

466

348

254

2O4

175

7,911

255

0.331

0.38

Aug.

154

137

*121

1O9

106

260

m289

230

196

157

144

164

161

124

112

1O6

118

182

140

115

1OO

200

238

147

118

112

136

229

452

6,083

196

0.255

0.29

Sept.

397

929

BoT

321

242

233

208 

178

144

124

112

109

1O6

94

92

348

510

5O2

317

333

354

305

381

377

234

186

*161

147

133

127

8,O11

267

0.347

0.39

Calendar year 1955: Max 20,900 Mln 16 Mean 788 Cfsm 1.02 In. 13.92

Water year 1955-56: Max 2O.9OO Mln 4O Mean 1,2O9 Cfsm 1.57 In. 21.37

Peak discharge (base. 9,800 cfs). Oct. 14 (about 8 p.m.) 50.40O cfs (20.18 ft); Oct. 17

(4:]5 a.m.) 14,80O cfs (13.59 ft); Nov. 16 (4:3O p.m. 14,500 cfs (13.48 ft); Feb. 25 (10:15 p.m.)

12,600 cfs (12.67 ft); Mar. 6 (11:30 a.m.) 26,OOO cfs (16.60 ft); Mar. 8 (4:30 p.m.) 23.8OO cfs

(16.16 ft); Apr. 4 (12:3O a.m.) 18,70O cfs (14.93 ft).

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for nearby stations. 

Note. Stage-discharge relation affected by Ice Nov. 29 to Dec. 1, Dec. 11 to Jan. 12, 

Feb. 25, Feb. 29, Mar. 1, 17-22.
344 SUSQUEHANNA RIVER BASIN

Arkport Reservoir near Arkport, N. Y.

Location.--Lab 42°23'45", long 77°43'00", on right bank 1,000 ft upstream from Arkport 

Dam on Canisteo River, 1.3 miles west of Arkport, Steuben County, and 1.3 miles upstream from small tributary.

Drainage area. 30.5 sq mi.

Records available. January 1951 to September 1956.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Corps of 

Engineers).

Extremes. --Maximum elevation during year, 1,268.40 ft Mar. 8; minimum, 1,227.42 ft Nov. 13.

1951-56: Maximum elevation, that of Mar. 8, 1956; minimum, 1,226.80 ft Jan. 13. 

1951.

Remarks. Arkport Reservoir is created by an earth-fill dam with concrete spillway, completed by Corps of Engineers in 1940 for flood control; first used for flood regulation 

on Mar. 31, 1940. Usable capacity, 7,936 acre-ft between elevations 1,218.0 ft (sill 

of conduit) and 1,304.0 ft (crest of spillway). No dead storage. The flood-control 

works consist of a pressure conduit and a side-channel spillway and are not provided 

with gates. Water Is stored during high flows and released gradually.

Cooperation. Capacity table furnished by Corps of Engineers.

Capacity table, water year 1955-56 (elevation, in feet, and 

contents, In acre-feet)

1,227.0

1,230.0

1,235.0

1,240.0

65

122

264

462

1,245.0

1,250.0

1,260.0

1,270.0

719

1,039

1,861

2,908

Elevation, In feet, at 12 p.m., water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

27.6

27.6

27.6

27.6

27.6

27.6

27.9

27.8

27.7

27.6

27.6

27.6

27.6

56.5

47.0

34.0

28.3

28.0

27.9

27.8

27.7

27.6 

27.5

2876

28.0

27 .8

27.7

27.6

27.6

27.' 8

78

+3

Nov.

27.7

27.6

27.6

27.6

27.5

27.5

27.5

27.5

27.4

27.5

27.4

27.4

27.4

27.7

27.9

33.8

28.3

28.1

28.0

28.0

28.0

27.9 

28.4

28.0

27.9

27.9

27.8

27.6

27.8

27.7

76

-2

Dec.

27.7

27 -.7

28.3

28.4

28.0

27.8

27.7

27.7

27.6

27.6

27.6

27.5

27.5

27.5

27.6

27.6

27.6

27.5

27.6

27.6

27.6

27.6 

27.5

30.0

28.2

27.7

27.9

28.0

27.7

97 ft £ f .a

27.6

75

-1

Jan.

27.8

27.6

27.6

27.6

27.5

27.5

27.7

27.6

27.6

27.7

27.6

27.6

27.7

27.8

27.7

27.7

27.6

27.6

27.7

27.6

27.5

27.5 

27.5

27.5

27.6

27.6

27.5

27.5

27.4 27 . 6

27.5

73

-2

Feb.

27.5

f775

27.7

27.6

27.5

27.5

28.0

28.0

27.9

27.8

27.8

27.8

27.7

27.9

28.0

27.9

28.0

28.1

27.9

27.8

27.8

28.0 

28.0

27.9

54.1

28.6

28.3

28.0

28.0

 

81

+8

Mar.

28.0

28.9

29.0

28.4

28.5

44.6

66.6

a65.2

51.6

28.6

30.0

28.4

28.4

28.2

28.1

28.0

30.3

29.3

28.7

28.6

28.0

27.9 

2779

27.9

27.9

28.0

28.0

28.0

28.2

28 . 1

28.1

83

+2

Apr,

28.5

32.1

46.7

49.5

a35.8

29.8

30.6

28.8

30.2

29.4

28.4

28.3

28.1

28.1

28.2

29.8

28.4

28.2

28.1

28j!_P

28.3

28.1 

28.6

28.2

28.1

28.1

28.3

29.0

29.9

28 4

89

+6

May

28.2

28.3

28.1

28.2

28.1

28.4

28.1

28.0

28.0

28.3

28.3

29.3

29.0

28.7

28.7

28.7

28.6

28.6

28.6

28.5

28.5

28.4 

28.4

28.4

28.3

28.3

28.3

28.3

28.3

28 . 2

28.6

92

+3

June

28.4

28.4

28.5

28.4

28.3

28.3

28.2

28.2

28.2

28.2

28.1

28.1

28.1

28.2

52.9

28.8

28.7

28.6

28.6

28.5

28.6

28.5 

28.7

28.6

28.5

28.5

28.5

38.4

28.4

28.4

89

-3

July

28.4

28.4

28.4

28.4

28.5

28.5

28.4

28.5

28.5

28.5

28.5

28.8

28.6

28.5

28.4

28.3

28.3

28.3

28.2

28.3

28.3

28.3 

28.2

29.2

28.2

28.2

28.2

28.2

28.2

28^2

85

-4

Aug.

28.2

28.2

28.2

28.2

28.2

28.2

28.3

28.2

29.0

28.3

28.2

28.2

28.2

28.2

28.2

28.2

28.2

28.2

28.2

28.2

28.2

28.1 

2872

28.2

28.2

28.2

28.1

28.9

28.4

34.4

28.9

98

+ 13

Sept.

28.5

28.4

28.3

28.2

28.2

28.2

28.2

28.2

28.2

26.1

28.1

28.1

28.1

28.1

28.2

28.4

28.6

28.4

28.3

28.5

28.3

28.3 

28.2

28.2

28.2

28.2

28.2

28.2

28.1

OQ -I £a . -L

83

-15

Calendar year 1955.................... * -4

Water year 1955-56.................... * +8

t Contents, in acre-feet, at end of month. 

Change in contents in acre-feet .

No gage-height record; elevation at 12 p.m. estimated on basis of recorded range in stage and 

al recession.

gag 

normal 

Note . Add 1,200.0 ft to obtain elevation above mean sea level.
SUSQUEHANNA RIVER BASIN 345

Canisteo River at Arkport, N. Y.

Location. Lat 42°23'45", long 77°42'50", on left bank 1,000 ft downstream from Arkport 

Dam and 0.9 mile west of Arkport, Steuben County.

Drainage area. 30.5 sq mi.

Records available. January 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,202.10 ft above mean 

sea level (levels by Corps of Engineers).

Average discharge. 19 years, 34.2 cfs (adjusted for storage).

Extremes.--Maximum discharge during year. 865 cfs Mar. 7 (gage height, 3.27 ft); minimum, 

0.9 cfs Oct. 5 (gage height, 0.605 ft).

1937-56: Maximum discharge, 2,000 cfs Mar. 5, 1938, Feb. 20, 1939; maximum gage 

height, 5.63 ft Feb. 19, 1939 (ice jam): practically no flow July 30, 1938, Sept. 30, 

1939 (result of construction operations).

Maximum discharge known, 4,820 cfs during flood of July 8, 9, 1935, by slope-area 

determination.

Remarks. Records good except those for periods of ice effect, which are fair. Since November 1939, flows above 500 cfs controlled by detention in Arkport Reservoir (see preceding page).

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

1.1

1.1

1.1

1.0

.i9-

1.9

2.7

40

9.7

5.5

4.0

3.2

*2.8

376

*728

*482

327

76

46

31

23

18

14

45

83

43

28

21

17

26

37

2,496.0

80.5

Nov.

23

18

15

13

12

9.7

9.2

8.4

7.6

7.8

7.8

6.9

1~6.7

19

406

194

63

48

39

38

*35

72

73

39

31

27

23

16

19

1,303.1

43.4

Dec.

16

16

29

229

84

44

32

26

*23

18

17

16

13

15

13

11

13

12

11

9.8

11

13

16

67

211

49

26

13

17

15

13

1,098.8

35.4

Jan.

14

11

12

11

10

10

8.6

7.8

10

13

16

14

12

10

11

11

*10

9.2

8.6

8.£

7.6

7.6

7.2

6.6

6.0

5.6

5.2

5.0

5.4

7.4

*8 .6

289.6

9.34

Feb.

8.2

7.8

7.8

6.8

772

7 .4

32

35

45

33

29

27

25

23

64

54

45

61

50

34

25

18

22

20

225

~96 265

60

44

1,377.2

47.5

Mar.

49

138

170

140

100

473

730

*760

652

490

215

128

78

71

52

41

56

47

39

38

35

31

24

22

22

26

32

27

29

45

39

4,799

155

Apr.

60

155

436

504

498

207

237

155

130

125

96

*67

55

41

38

217

104

63

47

37

34

56

69

66

43

43

44

62

131

156

3,976

133

May

66

50

54

*42

38

70

60

36

29

89

53

439

146

75

47

63

45

43

39

31

24

21

18

16

15

13

12

12

11

9.5

11

1,677.5

54.1

June

31

17

21

20

15

13

11

9.5

8.8

7.7

6.9

6.1

5.7

6.7

119

93

23

15

11

*9.0

10

12

15

17

11

9.0

7.3

6.5

6.1

5.4

548.7

18.3

July

5.2

5.9

5.0

4.5

6.7

9.0

8.8

7.0

17

11

12

24

87

48

20

13

9.5

7.3

5.9

*5.7

6.5

6.3

5.9

4.8

4.3

4.1

4.1

3.8

3.3

3 .2

3.0

361.8

11.7

Aug.

2.9

2.8

2.7

2.6

370

3.3

7.6

*8.2

29

42

12

7.9

6.7

15

9.0

6.3

5.4

5.0

5.4

5.2

4.6

4.0

4.0

7.7

5.9

4.6

4.3

85

~235

217

831.1

26.8

Sept.

50

16

17

12

9.5

8.8

8.6

7.3

6.5

5.9

5.7

5.4

*4.8

4.6

5.0

24

37

24

13

28

21

13

11

9.5

7.9

6.9

6.3

6.1

5.7

5.4

395.9

13.2

Adjusted for change In contents In Arkport Reservoir

Mean

Cfsm

In.

80.6

2.64

3.05

43.4

1.42

1.59

Calendar year 1955: : Water year 1955-56: 1

35.4

1.16

1.34

9.31

0.305

0.35

47.6

1.56

1.68

155

5.08

5.85

133

4.36

4.85

54.2

1.78

2.05

18.2

0.597

0.67

Observed

11.6

0.380

0.44

27.0

0.885

1.02

Adjusted

12.9

0.423

0.47

(ax 728 Mln 0.4 Mean 31.6 Mean 31.6 Cfsm 1.O4 In. 14.10

(ax 760 Mln 0.9 Mean 52.3 Mean 52.3 Cfsm 1.71 In. 23.36

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 28, 29, Dec. 1, 10-23, Dec. 26 to Jan. 

Jan. 7-9, Jan. 13 to Feb. 17, Feb. 19-25, 29, Mar. 1, 15-25, 28.
346 SUSQUEHANNA RIVER BASIN

Karr Valley Creek at Almond, N. Y.

Location. Lat 42°18'40", long 77°45'05", on right bank 500 ft downstream from McHenry 

Valley Creek, three-quarters of a mile upstream from mouth, and 1 mile upstream from 

Almond, Allegany County.

Drainage area. 27.6 sq mi.

Records available. February 1937 to September 1956.

. Water-stage recorder. Datum of gage is 1,353.68 ft above mean sea level (levels by 

orps of Engineers).

Average discharge. 19 years, 30.9 efs.

Extremes. Maximum discharge during year, 3,640 cfs Mar. 7 (gage height, 7.55 ft), from 

rating curve extended above 150 cfs on basis of slope-area determination at gage height 

6.31 ft; minimum daily, 1.4 cfs Aug. 4.

1937-56: Maximum discharge, 5,900 cfs July 18, 1942 (gage height, 8.8 ft, from 

floodmarks), from rating curve extended above 1,600 cfs on basis of slope-area determination of peak flow; no flow for all or part of each day Aug. 15-17, 1939, July 22, 

23, 1955; minimum gage height, 1.03 ft Aug. 15, 16, 17, 1939.

Remarks. Records good except those for periods of ice effect, obstructed intake, backwater from debris, or"shifting control, which are fair.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfsm

In.

Oct.

2.6

2.6

2.8

2.8

2.5

4.3

4.7 

21

7.0

3.7

2.8

2.5

*2.4 97~

28O

*201

208

79

50

26

17

14

12

62

83

51

26

18

15

31

37

2,250.7

72.6

2.63

3.03

Nov.

2O

16

14

12

11

1O

9.4 

8.6

7.6

8.3

8.3

7.6

2O

31

762

164

62

45

40

37

*33

122

81

38

29

24

19

12

16

1,675.8

55.9

2.03

2.26

Dec.

13

19

46

291

82

43

3O 

*22

2O

17

16

15

11

13

11

9.2

11

10

9.2

8.O

9.2

11

14

92

206

34

21

11

15

13

11

1,133.6

36.6

1.33

1.53

Jan.

12

9.2

1O

9.2

8.4

8.4

7.6 

6.2

7.2

12

1512-

*10

8.4

9.2

8.8

8.4

7.6

7.2

6.8

6.2

6.2

5.6

5.2

4.7

4.2

3.9

3.7

3T§

5.0

'

238.2

7.68

0.278

0.32

Feb.

5.9

6.2

5.9

5.0

6.2

6.7

30

 33

41

26

22

20

18

16

60

43

36

56

38

24

18

13

17

15

27O

195

82

50

34

1,192.9

41.1

1.49

1.61

Mar.

38

120

150

120

84

801

1,570 

824

*135

105

271

114

74

*66

43

30

43

34

27

26

24

21

17

16 He

19

25

20

22

34

28

4,917

159

5.76

6.63

Apr.

47

1S2

799

737

235

14O

229

140

142

118

86

*56

4O

26

24

196

81

5O

39

31

33

56

74

57

35

37

42

56

106

161

4,055

135

4.89

5.46

May

55

49

*47

35

29

42

37 

22

17

107

48

420

139

64

39

57

37

42

33

24

18

15

13

11

9.8

9.0

8.4

7.8

7.2

e_.o

o o .0c

1,456.8

47.0

1.70

1.96

June

3O

14

15

13

9.2

7.0

5.4 

4.9

4.0

3.5

3.1

2.4

2.0

5.4

i3.

18

8.O

4.5

*2.5

2.3

3.1

3.2

3.0

3.0

2.7

2.2

2.0

2.0

1.8

T -L .OA

222.0

7.40

0.268

0.3O

July

1.8

2.0

1.8

l.S

3?f

3.5

2.5 

2.0

13

4.0

*3.5

6.3

*10

12

7.4

5.O

3.9

3.3

2.9

*3.1

3.3

2.9

2.8

2.8

3.O

2.8

2.5

2.2

2.O

1.9

1.8

121.3

3.91

0.142

0.16

Aug.

1.8

1.8

1.6

1.4

1.6

8.9

13 

*c8.8

116

47

6.7

4.9

3.7

5.4

3.9

3.1

2.7

2.6

3.0

3.1

2.7

2.4

2.3

4.0

2.8

2.5

2.2

26

138 -73

116

612.9

19.8

0.717

0.83

Sept.

42

7T

13

9.3

7.4

8.3

7.6 

6.1

5.2

4.9

4.6

4.4

*4.0

3.9

4.9

31

17

14

8.8

22

16

9.6

8.8

8.3

6.7

5.9

5.0

4.6

4.4

4.3

313.0

10.4

0.377

0.42

Calendar year 1955- Max 1,22O Min 0 Mean 31.7 Cfsm 1.15 In. 15.58

Water .tep year year 1955-56; 1955-56; Max Max 1,57O 1,57O____Min Min 1.4 1.4 Mean Mean 49.7 43.7 Cfsm Cfsm 1.8O i.ao In. in. 24.51 24.51._________

Peak discharge (base. 2.OOP cfs). Oct. 14 (2:45 p.m.) 2.15O cfs (6.19 ft); Nov. 16 (7:45 a.m.) 

,120 cfs (6.16 ft); Mar. 7 (2:45 a.m.) 3,640 cfs (7.55 ft); May 12 (2:15.a.m.) 2.O2O cfs (6.06 ft).

* D1 RflhAT»ffe meaniiTVampnt: marie nn i-.^i\ a riev

. . .. , 

Discharge measurement made on this day. 

c Backwater uacKwater from rdebris. aecris.

Note. Stage-discharge relation affected by Ice Nov. 28 to Dec. 2, Dec. 9-24, Dec. 26 to Jan. 3, 

Jan. 7, 8, 10-17, Feb. 4, 7-19, Feb. 21 to Mar. 5, Mar. 9, Mar. 14 to Apr.l (shifting-control method 

used Feb. 25-29, Mar. 1-5, 9, 14, 15, Mar. 17 to Apr. 1; doubtful gage-height record Mar. 16).

ted intake May 2O to July 1O; discharge computed on basis of discharge measurements, weather 

, engineers' and observer's notes, and records for nearby stations. Shifting-control method 

V 6. 8. 9. Julv 11-18. Aiicr. 9 t-.n Sent: ^O.
SOSQUEHANNA RIVER BASIN 347

Almond Reservoir near Almond, N. Y.

Location. Lat 42°20'50", long 77°42'20", at Almond Dam on Canacadea Creek, 2 miles northeast of Almond, Allegany County, and 3 miles upstream from mouth.

Drainage area. 56 sq mi, approximately.

Records available.--July 1949 to September 1952 (monthly elevations and contents), October 

1952 to September 1956.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Corps of 

Engineers).

Extremes.--Maximum elevation during year, 1,285.95 ft Mar. 8; no contents for many days. 

1949-56: Maximum elevation, that of Mar. 8, 1956; no contents for many days each 

year.

Remarks. Reservoir is formed by earth-fill dam with concrete spillway, completed by Corps 

of Engineers in June 1949 for flood control; first used for flood regulation on 

Mar. 28, 1950. Usable capacity, 14,800 acre-ft between elevations 1,229.0 ft (sill of 

gates and 1,300.0 ft (crest of spillway). No dead storage. Floods are controlled by 

the operation of three gates. Water is stored during high flows and released when 

downstream conditions warrant.

Cooperation.--Capacity table furnished by Corps of Engineers.

Capacity table, water year 1955-56 (elevations, in feet, and 

contents, in acre-feet)

1,231.0

1,252.0

1,233.0

1,234.0

1,235.0

1,236.0

1,240.0

1,245.0

1,250.0

1,255.0

1,260.0

1,270.0

1,280.0

1,290.0

230

570

1,080

1,750

3,750

6,570

10,300

Elevation, In feet, at 12 p.m., water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

(t)

(*)

Oct.

-

-

-

-

-

-

_

-

_

-

-

esa

62.7

62.8

63.0

40.8

32.1

31.5

31.2

31.0

-

36.3

33.3

32.2

31.8

31.5

31.4 

33.4

32.2

1

+1

Nov.

31.9 

d31.7

d31.4

d31.1

-

.

-

:-

_.-

31.0

36.5

56.8

48.4

33.0

32.5

32.3

32.1

32.0

35.7

32.6

32.0

31.8

31.6

-

0

-1

Dec.

-

34.3

35.9

32.8

32.1

31.7

31.4

-

.

-

-

_

-

.

-

-

-

-

_

-

_

41.5

33.0

_

31.1

31.0

31.1

.

0

0

Jan.

0

0

Feb.

-

-

-

-

_

31.7

31.9 

31.6

31.4

31.0

31.2

31.0

31.5

32.1

31.2

31.7

32.4

31.8

31.2

_

-

-

_

43.2

34.6

33.1

32.0

31.6

__

1

+1

Mar.

32.2 

37.0

37.5

34.1

34.7

49.8

78.7

85.6 

7576

55.2

41.6

34.8

34.9

33.7

33.1

32.1

32.8

32.8

32.4

32.4

32.4

32.2

32.0

32.1

32.1

32.2

32.3

32.2

32.4 32 . 8

32.6

Z

+1

Apr.

33.9

41.7

50.9

49.8

38.4

36.6

38.3

35.7 

37.8

36.0

34.4

33.7

33.1

32.8

32.8

36.1

34.3

33.4

33.2

52.7

34.0

32.9

35.5

33.4

32.7

32.8

34.0

34.1

35.7

34.3

6

+4

May

33.2 

34.3

32.9

d33.1

32.4

d33.3

32.5

32.2 

32.1

d33.7

32.6

34.9

34.5

33.5

33.2

33.9

33.2

33.4

33.1

32.6

32.4

31.8

31.6

31.4

31.2

31.1

31.0

-

31.1

1

-5

June

31.3

31.3

-

-

.

:-

__-_

55.0

31.6

31.4

31.2

d31.0

-

_

-

-

_

-

_

_

-

-

0

-1

July

0

0

Aug.

-

_

-

-

.

-

37.4

31.7

31.1

-

-

31.3

31.4

31.1

-

-

_

-

_

-

.

_

-

_

_

34.3

32.5

42.9 

33.6

4

+4

Sept.

d3l73

_

-

-

.

-

;

-

_

.

-

31.1

31.3

31.5

_

-

-

-

_

-

-

-

_

_

_

-

0

-4

Calendar year 1955. .................... * -2

Water year 1955-56. .................... * 0

t Contents, in acre-feet, at end of month 

t Change In contents in acre-feet.

 -- 

-

d Doubtful gage-height record; e i 

- J

.evation at 12 p.m. computed from reconstructed gage-height graph

records for Canacadea Creek near Hornell.

231.0 ft) on all days except those for *W.ch 

.evation above mean sea level.
348 SUSQUEHANNA RIVER BASIN 

Canacadea Creek near Hornell, N. Y.

Location. Lat 42°20 I 05", long 77°41 1 00", on right bank 35 ft downstream from Morris

Bridge near Hornell, Steuben County, 1.5 miles downstream from Almond Dam, and 2 miles 

upstream from mouth.

Drainage area. 58.7 sq mi.

Records available.--October 1940 to December 1942, October 1944 to September 1956.

Gage.--Water-stage recorder and concrete control. Oct. 23, 1940, to Dec. 31, 1942, at 

site 185 ft upstream at different datum.

Average discharge.--14 years (1940-42, 1944-56), 65.0 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 2,980 cfs Mar. 9 (gage height, 4.54 ft); maximum gage height, 4.60 ft Mar. 10 (backwater from debris); minimum discharge, 6.0 cfs 

Oct. 5 (gage height, 0.835 ft).

1940-42, 1944-56: Maximum discharge, 9,430 cfs May 17, 1945, from rating curve 

extended above 3,400 cfs by logarithmic plotting; maximum gage height, 6.65 ft June 3, 

1947; minimum discharge, 2.2 cfs July 22, 1953 (gage height, 0.72 ft).

Maximum discharge known, 21,000 cfs during flood in July 1935, by slope-area determination of peak flow.

Remarks.--Records good except those for periods of ice effect or backwater from debris, 

which are fair. Since October 1948, flow regulated by Almond Reservoir (see preceding page).

Rating tables, water year 1955-56, except periods of ice effect or backwater 

from debris (gage height, in feet, and discharge, in cubic feet per second)

Oct. 19 to Sept. 30

0.8 

.9

1.0

1.1 

1.3 

1.5

4.6

8.9

15

3.0 

3.5

179

318

592

1,070

1,630

0.9 

1.1 

1.3 

1.5 

1.8

82

172

2.1 

2.5 

3.0 

4.0 

4.6

302

550

970

2,170

3,080

Disc large, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

2b

27

28

29

30

31

Total

Mean

Oct.

6.6

6.6

6.4

6.4 

6.0

8.6

9.6

29

15

11

9.2

*8. 2

7.9

372

525

446

351

1.540

123

59

44

39

34

96

141

78

50

41

36 

59

68

4,042.5

130

Nov.

44

39

34

33 

30

28

25

24

23

24

24

24

23

42

46

719

794

324

114

92

85

*74

181

161

87

67

58

52

31 

41

3,343

111

Dec.

35

38

73

417 

162

87

61

*50

45

39

38

36

28

30

29

21

29

27

25 ia

23

27

32

110

352

72

42

25

34 

27

22

2,055

66.3

Jan.

25

21

28

25

24

24

21

16

23

28

32

30

*26

18

21

20

21

18

17

17

18

17

15

14

14

13

13

12

14 

17

19

621

20.0

Feb.

18

18

18

15 

21

19

51

56

67

51

47

44

40

36

91

68

52

87

74

58

41

30

35

32

329

392

155

106

68

2,119

73.1

Mar.

60

219

274

236 

165

1,100

*102

289

2,100

2.550

9OO

250

160

150

114

68

76

76

62

60

56

54

54

52

50

56

66

54

60 

84

9,473

306

Apr.

102

260

1,060

1,500 

580

240

350

250

230

200

*160

124

102

80

76

280

160

118

98

80

74

124

135

122

84

84

96

114

185 

230

7,098

237

May

120

106

108

*84 

74

88

84

58

50

160

100

640

280

150

98

125

88

94

8E

64

52

44

40

37

33

31

30

29

28 

2B

28

3,031

97.8

June

60

35

38

35 

32

28

25

24

22

21

20

18

17

22

90

52

30

24

*20

19

21

21

20

20

19

17

16

16

15 

15

812

27.1

July

15

16

15

14 

18

18

16

15

39

20

19

24

30

38

26

21

19

17

16

*17

20

18

17

16

17

16

15

14

14 

13

13

586

18.9

Aug.

13

12

12

12 

13

24

28

*22

185

145

36

25

20

£7

21

17

16

15

18

18

15

14

14

26

19

16

15

58

245

90

265

1,456

47.0

Sept.

84

50

34

25 

21

23

22

19

17

16

15

15

*15

15

16

90

42

35

26

42

42

28

26

25

21

18

17

16

16

16

847

E8.2

Adjusted for change in contents in Almond Reservoir

Mean 

Cf sin

130 

2.21 

2.56

111 

1.89

2.12

Calendar year 1955 : 

Water year 1955-56 :

66.3 

1.13 

1.30

20.0 

0.341 

0.39

73.1 

1.25 

1.34

306 

5.21 

6.00

237 

4.04

4.50

97.7 

1.66 

1.92

Observed

Max 1,360 Min 4.2 Mean 64.5 

Max 2,350 Min 6.0 Mean 96.9

27.0 

0.460 

0.51

18.9 

0.322 

0.37

47.0 

0.801 

0.92

28.2 

0.480 

0.54

Adjusted

Mean 64.5 Cfsm 1.10 In. 14.93 

Mean 96.9 Cfsm 1.65 In. 22.47
SUSQUEHANNA RIVER BASIN 349

Canisteo River below Canacadea Creek, at Hornell, N. Y.

Location.--Lat 42°18'50", long 77°39'05", on right bank 235 ft (revised) upstream from 

Erie Railroad bridge in Hornell, Steuben County, 0.25 mile upstream from Crosby Creek, 

and 1.5 miles downstream from Canacadea Creek.

Drainage area. 159 sq mi.

Records available.--August 1942 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,131.10 ft above mean 

sea level (Corps of Engineers benchmark).

Average discharge. 14 years, 166 cfs.

Extremes.--Maximum discharge during year, 5,080 cfs Mar. 7 (gage height, 9.35 ft); minimum 

daily, 16 cfs Oct. 1-5, 12; minimum gage height, 0.575 ft Aug. 4.

1942-56: Maximum discharge, 9,340 cfs May 26, 1943 (gage height, 13.30 ft), from 

rating curve extended above 3,700 cfs on basis of critical-depth determination of peak 

flow; minimum, 7.4 cfs Sept. 13, 14, 1955; minimum gage height, 0.57 ft July 20, 1955.

Remarks. Records good except those for periods of ice effect or partly obstructed intake, 

which are fair. City of Hornell diverts an average of about 3.5 cfs for municipal 

supply from Carrington Creek, a tributary above station; sewage enters river below gage. 

Since November 1939, flood flows regulated by Arkport Reservoir (see p. 344), and, 

since October 1948, by Almond Reservoir (see p. 347).

Rating table

54

163

282

water year 1955-56, except periodo of ice 

feet, and diocharge, in cubic feet per

effect 

econd)

Oct. 16 to Apr. 3

4.0 

5.0

6.0 

7.0

442

720

1,220

2,120

165

282

442

720

1,220

2,120

4,630

ge height, in

Apr. 4 to Sept. 3O

0.5 16

1.0 64

2.0 165

Note. Same as 

preceding table

Dlocharge, in cubic feet per

above 2.0 ft. 

oecond, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

16

16

16

16

16

24

27

75

40

26

20

*16

18

916

1.450

*1,390

997

1,400

310

169

130

108

88

143

304

179

126

102

88 

154

205

8,585

277

1.74

2.01

Nov.

135

110

94

86

77

71

66

61

58

59

58

56

52

84

90

1,640

1 200

552

251

212

200

*182

318

333

195

160

143

129

74

96

6,842

228

1.43

1.60

Dec.

84

86

121

724

346

199

155

*132

123

93

95

92

76

78

78

58

72

64

62

±Z

50

52

55

118

791

195

108

70

82

64

4,453

144

0.906

1.04

Jan.

66

56

62

62

60

58

52

38

46

62

80

73

*66

42

50

47

46

41

38

39

40

39

37

35

34

32

31

30

34

38

*42

1,476

47.6

0.299

0.35

Feb.

40

41

42

34

44

44

112

153

182

148

129

130

117

108

206

185

135

211

199

163

122

94

102

92

585

957

409

270

205

5,259

181

1.14

1.23

Mar.

185

490

702

657

428

2,310

*3,500

2,470

3,460

5.510

1,790

920

540

*470

358

245

260

245

220

195

186

181

178

175

165

176

198

175

177 

234

2 18

25,018

807

5.08

5.85

Apr.

246

566

2,410

3.100

1,800

900

1,060

820

680

660

*520

388

319

257

233

774

493

326

264

230

207

283

305

322

233

225

228

269

463 

644

19,225

641

4.03

4.50

May

326

265

285

*226

212

260

271

194

167

341

246

1_,540

728

391

265

309

245

240

218

183

155

138

122

114

103

95

92

89

82

11 

80

8,059

260

1.64

1.89

June

151

102

104

102

86

76

69

64

60

55

50

46

44

194

339

419

Teo

107

*81

71

75

89

82

90

68

58

51

47

44 

42

3,026

101

0.635

0.71

July

43

52

42

38

50

55

50

51

120

68

60

76

170

150

91

67

56

45

42

*43

69

67

64

46

43

41

38

33

31 

31

1,860

60.0

0.377

0.44

Aug.

28

26

26

24

27

44

61

*59

199

267

75

49

44

75

56

44

39

37

44

43

37

33

33

56

43

34

32

277

783 

231

750

3,576

115

0.723

0.84

Sept.

244

154

110

82

67

64

61

53

48

46

44

44

*41

39

41

170

132

106

70

101

101

69

63

60

50

44

41

38

36 

54

2,253

75.1

0.472

0.53

Calendar year 1955: Max 2,180 Min 9.0 Mean 144 Cfsm 0.906 In. 12.28

Water year 1955-56: Max 3,510 Min 16 Mean 245 Cfsm 1.54 In. 2O.99
350 SUSQUEHANNA RIVER BASIN

Canlsteo River at West Cameron, N. Y.

Location. Lat 42°13'20", long 77°25'05", on right bank 250 ft downstream from highway

 bridge, a quarter of a mile southeast of West Cameron, Steuben County, and 2 miles upstream from Cameron.

Drainage area. 342 sq ml.

Records available.--January 1930 to September 1931, February 1937 to September 1956.

gage Water-stage recorder and concrete control. Datum of gage is 1,037.71 ft above 

mean sea level (levels by Corps of Engineers). Prior to Sept. 30, 1931, wire-weight 

gage on highway bridge 250 ft upstream at same datum.

Average discharge . 20 years (1930-31, 1937-56), 352 cfs.

Kxtremes. Maximum discharge during year, 15,600 cfs Mar. 7 (gage height, 17.19 ft); minl-

 mum, 22 cfs Oct. 5 (gage height, 3.18 ft, backwater from aquatic vegetation).

1930-31, 1937-56: Maximum discharge, 17,600 cfs May 28, 1946 (gage height, 18.09 

ft); minimum dally, 12 cfs Aug. 28, Aug. 30 to Sept. 3, 1939.

Maximum discharge known, 35,000 cfs during flood of July 8,9, 1935, by slope-area 

determination.

Remarks.--Records excellent except those for periods of Ice effect, backwater from aquatic 

vegetation, or no gage-height record, which are fair.

Revisions. WSP 821: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect or backwater 

from aquatic vegetation (gage height, In feet, and discharge, In cubic 

feet per second)

Oct. 1 to Kar. 7 Mar. 8 to Sept. 30

3.1 

3.3 

3.5 

4.0 

4.5

174

325

9.0

12.0

16.0

530

1,640

3,220

6,700

13,200

3.3 40

3.5 69

4.0 173

4.5 318

5.0 513

7.0 1,630

9.0 3,220

12.0 6,700

16.0 13,200

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

24

23

23

23

22

28

46

98

104

62

48

*40

36

3,200

4.970

3,310

3,250

2,150

1,200

544

385

322

258

257

709

472

336

271

234

653

835

23,933

772

2.26

2.60

Nov.

485

374

308

271

234

208

187

167

152

148

143

137

126

254

255

4.810

2,930

1,670

820

655

»568

498

602

1,020

568

455

397

358

230

258

19,288

643

1.88

2.10

Dec.

220

228

241

1,360

1,140

582

438

*358

a322

a250

a230

a220

a!80

a!90

a200

135

160

160

145

114

116

120

135

205

al.770

516

290

170

195

190

155

10,735

346

1.01

1.17

Jan.

160

140

155

145

*130

118

98

72

84

130

185

170

150

84

108

100

96

80

74

76

78

76

72

68

66

62

60

58

66

74

86

3,121

101

0.295

0.34

Feb.

82

82

54

66

80

80

150

280

360

310

245

245

*231

188

362

383

286

368

421

358

264

215

250

200

862

2.160

1,000

660

460

10,732

370

1.08

1.17

Calendar year 1955: Max 6,26O Mln 17

Mar.

390

841

1,420

1,410

958

4,300

11.500

8,710

4,410

*4,450

3,930

2,490

1,340

1,160

882

670

560

560

520

420

397

397

394

375

540

375

445

410

394

522

509

55,479

1,790

5.23

6.03

Apr.

511

1,030

4,620

7.650

4,900

2,390

2,680

2,210

1,570

1,620

1,550

1,020

854

695

610

1,370

1,200

816

650

549

466

645

620

780

558

»522

509

610

974

*1,150

45,069

1,502

4.59

4.90

May

740

577

655

496

462

446

610

421

550

547

549

2.580

1,950

1.110

725

725

610

554

500

421

546

505

275

251

222

201

190

188

176

166

171

17,297

558

1.65

1.88

June

557

257

242

260

217

195

175

155

145

150

122

*108

96

104

576

594

264

171

150

111

105

126

105

128

105

91

82

74

69

M

5,152

172

0.505

0.56

July

61

71

67

59

76

111

89

76

244

146

107

145

»279

528

218

140

114

94

76

90

270

222

212

145

118

100

92

84

70

64

62

4,050

150

0.580

0.44

Aug.

58

56

50

48

49

»72

155

150

104

562

180

114

92

124

125

90

72

68

72

82

68

62

58

116

102

74

64

72

1,500

557

1.510

6,466

209

0.611

0.70

Sept.

650

875

398

273

209

176

176

146

124

114

104

»98

90

84

100

508

579

311

206

212

222

175

160

262

170

145

125

114

104

98

6,788

226

0.661

0.74

Mean 351 Cfsm 1.03 In. 13.92

Water year 1955-56: Max 11,500 Mln 22 Mean 569 Cfsm 1.66 In. 22.63

Peak discharge (base. 6.100 efs). Oct. 15 (12:15 a.m.) 9,840 cfs (14.09 ft)i Nov. 16 (1:45 p.m.) 

9,250 cfs (13.72 ft); Mar. 7 (9 a.m.) 15,600 cfs (17.19 ft)j Apr. 4 (8:45 p.m.) 9,330 cfs (13.77 ft}.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for upstream 

stations.

Note. Stage-discharge relation affected by Ice Nov. 29, Dec. 1, 16-24, Dec. 27 to Feb. 12, 

Feb. 22-24, Feb. 28 to Mar. 1, Mar. 17-20, 25 (no gage-height record Dec. 17-24) fragmentary gageheight record Dec. 28). Backwater from aquatic vegetation Oct. 1-14, June 8-14, July 16-20, July 24 

to Aug. 9, Aug. 11-28, Sept. 9-15, 22, 23, 25-3O.
SUSQUEHAKNA RIVER BASIN 351

Tuscarora Creek near South Addison, N. Y.

Location.--Lat 42°04'00", long 77°17'00, on left bank 0.9 mile downstream from Elk Creek, 

It miles upstream from South Addison, Steuben County, and 3-J- miles southwest of Addison.

Drainage area. 114 sq ml.

Records available. February 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 1,059.18 ft above 

mean sea level (levels by Corps of Engineers).

Average discharge. 19 years, 101 cfs.

Extremes. Maximum discharge during year, 11,000 cfs Oct. 14 (gage height, 7.61 ft); minimum, 1.8 cfs Oct. 5, 6; minimum gage height, 1.215 ft Oct. 5, 6, July 1,4.

1937-56: Maximum discharge, 14,000 cfs May 27, 1946, Mar. 30, 1951; maximum gage 

height, 8.79 ft Mar. 30, 1951; no flow at times In 1939, 1941, 1954-55.

Remarks. Records good except those for periods of Ice effect or fragmentary gage-height 

record, which are fair.

Rating tables, 

height,

water year 1955-56., except periods of Ice effect 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 3 Apr. 3 to Sept. 30

1.5 

3.9

2.2

32

59

122

2.5 

3.0 

3.5 

4.0 

5.0 

6.0

219

469

822

1,300

2,630

4,890

1.3

1.4

2.4 2.1 

Z.5 

3.0 

3.5 

4.0 

5.0

108

241

525

924

1,410

2,740

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2.4

2.2

2.1

2.0

1.9

3.5

9.8

68

35

21

15

*11

10

5.780

1,570

1,800

1,310

474

262

167

117

f96

f73

91

184

108

75

61

54 

343

313

11,061.9

357

3.13

3.61

Nov.

141

103

83

75

61

53

48

40

36

34

33

32

28

292

131

1.460

631

259

204

172

*163

150

280

292

147

117

108

96

48 

58

5,375

179

1.57

1.75

Dec.

47

53

59

498

334

139

*97

77

68

52

49

46

37

34

34

25

28

24

23

19

18

18

19

20

320

80

38

36

31 

24

21

2,368

76.4

0.670

0.77

Jan.

18

16

14

15

*16

16

14

13

16

19

44

45

26

18

18

14

12

9.7

8.1

8.1

8.8

8.6

8.4

7.8

8.0

.8

.8

.4 ' .4

 8 

8.4

448.1

14.5

0.127

0.15

Feb.

7.8

8.0

8.0

LA

7.8

7.8

13

88

117

86

84

53

*41

31

114

90

58

128

168

118

72

46

40

30

640

491

211

111

76

2,952.8

102

0.895

0.96

Mar.

62

507

636

461

292

2,640

5.820

2,350

602

*500

902

463

278

253

172

110

106

122

100

88

74

78

79

80

78

85

134

129

110 

157

15,646

505

4.43

5.10

Apr.

312

645

2,140

2.280

1,060

579

1,100

748

651

556

387

270

205

150

127

374

*238

163

124

99

79

140

140

142

92

92

87

117

426 

280

13,803

460

4.04

4.50

May

160

127

166

103

85

99

211

99

74

*96

92

416

492

223

130

138

124

130

111

83

63

53

46

44

35

30

27

26

23 

20

22

3,548

114

1.00

1.16

June

100

55

49

50

38

30

24

20

17

16

*14

12

10

8.2

30

26

18

14

11

8.8

8.0

7.5

7.0

8.8

7.7

6.1

5.6

4.7

4.0

5.6

614.0

20.5

0.180

0.20

July

2.9

3.6

3.5

2.8

14

*51

17

12

21

20

12

58

53

42

29

19

14

11

8.5

18

~96 176

70

38

27

21

16

13

11 

9.1

7.7

856.9

27.6

0.242

0.28

Aug.

7.2

6.5

5.8

4.7

4.5

*5.2

12

13

9.7

14

12

8.2

7.2

11

13

8.5

6.7

6.1

7.2

7.2

6.1

4.8

4.3

15

15

10

8.0

15

203 

73

285

806.7

26.0

0.228

0.26

Sept.

92

562

102

55

57

33

25

20

16

15

13

*12

12

11

17

225

124

87

52

42

38

31

51

61

37

28

22

19

17 

16

1,652

55.1

0.483

0.54

Calendar year 1955: Max 3,780 Hln 0 Mean 103 Cfsm 0.904 In. 12.28

Water year 1955-56: Max 3,820 Hln 1.9 Mean 162 Cfsm 1.42 In. 19.28

Peak discharge (base, 5,600 cfs .--Oct. 14 (4:45 p.m.) 11,000 cfs (7.61 ft); Mar. 7 (6 a.m.) 8,400

cfs (7.00 ft).
SU3Q.UEHANNA RIVER BASIN

Tioga River- near Erwins , N. Y.

Location. Lat 42°07'15", long 77°07'45", on right bank 20 ft downstream from highway 

bridge, half a mile downstream from Erwins, Steuben County, and 3 miles upstream from 

confluence with Cohocton River.

Drainage area. 1,370 sq mi, approximately. 

Records available.--July 1918 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 931.24 ft above mean sea level, adjustment 

of 1912. Prior to June 21, 1931, chain gage on highway bridge at same datum.

Average discharge.--33 years, 1,361 cfs.

Extremes.--Maximum discharge during year, 58,500 cfs Oct. 14 (gage height, 19.00 ft)- minimum, 72 cfs Oct. 5 (gage height, 0.61 ft).

1918-56: Maximum discharge, 94.00U cfs May 28, 1946 (gage height, 23.54 ft, from 

high-water mark in gage house) , from rating curve extended above 44,000 cfs on basis of 

slope-area determinations at gage heights 18.82 and 23.54 ft; minimum, 18 cfs Sept 2 

3, 1939; minimum gage height, 0.40 ft Sept. 8, 9, 1954, July 23, Aug. 10, 11, 1955.

Remarks. Records excellent except those for periods of ice effect or backwater from weeds 

which are fair. '

Revisions (water years). WSP 6£ Drainage area. WSP 891: 1935-38.

Rating tables, water year 1955-56, except periods of ice effect or backwater fron 

weeds (gage height, in feet, and discharge, in cubic feet per second)

Oct. 15 to Sept. 30

113

169

1.5 

2.0 

3.0

378

661

1,440

Note.--Same as following 

table above 3.0 ft.

1.0 

1.5 

2.0 

3.0 

4.0

173

384

665

1,440

2,620

5.0

7.0

10.0

13.0

16.0

4,050

7,810

16,100

26,800

40,400

Discharge, Indexible feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

90

86

80

76

74

102

151

750

650

393

*279

230

193

22,300

*55.500

13 , 900

17,000

7,650

5,130

3,090

2,230

1,780

1,430

1,250

2,490

2,050

1,490

1,240

1,090

2,510

5,670

128,954

4,160

3.04

3.50

Nov.

2,910

2,150

1,750

1,610

1,340

1,160

* 1,030

922

820

757

737

724

672

3,550

2,400

13.100

10,400

5,400

3,530

2,980

2,590

2,390

2,280

4,100

2,480

1,980

1,770

1,620

1,180

1,060

79,392

2,646

1.93

2.16

Dec.

960

975

960

2,220

5,960

*1,840

1,400

1,180

1,080

940

780

760

640

620

620

450

490

520

500

370

340

400

470

516

2,510

1,580

740

568

510

500 

480

29,879

964

0.704

0.81

Jan.

440

390

415

430

*425

404

370

300

340

419

1.070

1,060

661

450

420

440

380

330

300

281

281

294

285

270

270

260

260

250

243

255 

268

12,261

396

0.289

0.33

Feb.

289

281

270

270

245

260

*303

535

1,040

1,110

1,450

968

960

800

1,300

2,190

1,240

1,600

2,870

2,100

1,300

860

764

710

4,020

8,250

3,470

2,080

1,350

42,865

1,478

1.08

1.16

Mar.

1.140

3 260

6^290

5,200

3,520

*23,800

36,400

33,100

15,000

9,690

9,470

8,350

4,740

4,180

3,330

2,750

1,750

2,250

2,000

1,650

1,500

1,500

1,580

1,550

1,400

1,540

1,780

1,830

1,730

1,800 

2,090

196,170

6,328

4.62

5.33

Apr.

2,190

4,570

16,400

26.200

19,100

9,720

11,300

10,500

7,230

7,560

6,050

4,710

3,920

3,250

2,830

*4,260

4,720

3,320

2,700

2,240

1,870

2,130

2,070

2,540

1,910

1,740

1,730

1,750

3,290

*3,460

175,260

5,842

4.26

4.76

May

2,590

2,060

2,450

1,910

1,700

1,510

2,700

1,960

1,490

1,480

1,840

3,900

5.860

4,010

2,770

2,420

2,240

1,870

1,760

1,490

1,240

1,080

960

692

778

691

646

615

585

527 

510

56,534

1,824

1.33

1.53

June

903

982

798

922

750

659

574

510

567

435

*410

369

340

321

673

876

704

510

410

345

321

312

312

298

312

312

289

264

243

228

14,849

495

0.361

0.40

July

216

212

224

220

*315

851

544

410

510

522

389

345

559

678

717

483

379

321

281

326

1,070

1.540

908

700

520

440

600

540

420

340 

300

15,580

503

0.367

0.42

Aug.

280

250

230

200

194

*210

940

640

490

700

560

360

300

310

350

280

240

215

215

280

250

210

185

250

440

280

230

280

1,550

1,400 

2.150

14,470

467

0.341

0.39

Sept.

1,550

2.350

1,350

820

620

520

470

410

350

300

270

260

250

240

255

800

1,400

1,120

740

660

700

620

560

680

560

450

*380

340

310

300

19,615

654

0.477

0.53

Calendar year 1955: Max 33,500 Min 36 Mean 1,358 Cfsm 0.991 In. 13.47

Water year 1955-56: Max 36,400 Mln 74 Mean 2,147 Cfsm 1.57 In. 21.32

Peak discharge (base, 17,000 cfs).--Oct. 14 (11:15 p.m.) 58,500 cfs (19.00 ft): Oct. 17 (6:30 a.m.) 

22.800 cfs (11-98 ft); Nov. 16 (7 p.m.) 23,800 cfs (12.26 ft); Mar. 7 (4:30 p.m.) 42,900 cfs (16.50 

ft); Apr. 4 (2:30 a.m.) 29,700 cfs (13.72 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 29, Dec. 1, 10-23, 27, Dec. 30 to Jan. 2, 

Jan. 7-9, 14-19, 24-28, Feb. 3-6, 13-15, 17, 18, 20-22, 29, Mar. 1, 17-21, 25. Backwater from weeds 

July 24 to Sept. 30.
SUSQUEHANNA RIVER BASIN

Cohocton River at Cohocton, N. Y.

Location.--Lat 42°30'00", long 77°30'00", on left bank 450 ft downstream from highway 

bridge at Cohocton, Steuben County, and 800 ft downstream from small tributary.

Drainage area. 53.3 sq mi.

Records available. October 1950 to September 1956.

Gage. Water-stage recorder.

Av erase d is charge.--6 years, 57.2 cfs.

Extremes. Maximum discharge during year, 841 cfs Mar. 8 (gage height, 6.19 ft); minimum, 

3.7 cfs Oct. 4 (gage height, 1.615 ft, backwater from aquatic vegetation).

1950-56: Maximum discharge, that of Mar. 8, 1956; minimum, 0.1 cfs Oct. 6, 1954 

(gage height, 1.305 ft, backwater from aquatic vegetation), result of regulation from

unknown cause.

Remarks.--Records good except those for periods of ice effect or backwater from aquatic 

vegetation, which are fair.

Rating tables, water year 1955-56, except periods of ice effect or backwater 

from aquatic vegetation (gage height, in feet, and discharge, in cubic 

feet per second)

Mar. 9 to Sept. 30

121

266

468

770

2.2 

2.5

124

278

485

715

Discharge ubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

1

3

4

6

7

8

30

31

Total

Mean

Cf sm

Oct.

5.0

4.9

4.6

4.1

4.4

7.0

12

19

22

21

16

12

9.0

76

225

340

360

320

260

205

155

120

98

86

*84

86

78

70

64

76

96

2,940.0

94,8

1.78

2.05

Nov.

100

88

76

70

64

58

52

49

46

44

42

40

39

41

46

72

97

112

107

97

88

82

*76

74

74

70

67

64

b58

b52

2,045

68.2

1.28

1.43

Dec.

b48

46

48

66

§1

beo

76

72

*68

b62

b58

b54

b50

b46

b45

b45

b42

b40

b38

b38

b37

b37

36

36

b54

b74

b68

b62

b56

b52

b50

1,665

53.7

1.01

1.16

Jan.

b46

b45

40

40

41

40

b39

b35

b32

32

35

39

b37

b33

b29

*b27

b26

b25

b23

b22

b22

23

b23

b22

b22

b22

b21

b21

b20

b20

b21

923

29.8

0.559

0.64

Feb.

b21

21

b21

b21 'b21

b21

26

31

38

41

41

40

b40

b40

b40

b41

*b41

41

b43

b46

b43

b40

b38

b36

b41

b68

82

b90

b82

1,195

41.2

0. 773

0.83

Mar.

b74

82

b96

116

125

166

556

770

*690

580

452

389

335

291

247

199

152

b!50

b!40

b!25

bl!4

b!06

102

89

89

88

87

82

80

82

82

6,736

217

4.07

4.70

Apr.

81

89

177

396

571

594

523

461

378

312

270

237

*217

200

183

201

216

208

184

161

1.41

130

123

118

110

102

97

103

138

197

6,918

231

4.33

4.83

May

203

 186

172

151

136

127

123

111

100

95

93

120

170

184

174

158

145

130

118

106

96

88

81

73

66

62

58

55

52

49

62

3,544

114

2.14

2.47

June

98

104

93

83

76

68

61

*54

51

46

41

37

34

31

34

37

34

33

29

27

25

24

25

30

30

26

25

24

23

Ji

1,324

44.1

0.827

0.92

July

19

20

20

18

22

27

28

28

28

27

30

30

28

31

13

31

26

22

20

18

21

21

22

21

*19

17

16

15

lj

12

13

696

22.5

0.422

0.49

Aug.

13

12

10

9.8

9.0

9.8

*13

15

14

14

15

12

11

20

21

19

14

13

13

13

12

11

11

14

14

12

11

19

58

84

M

610.6

19.7

0.370

0.43

Sept.

100

118

104

80

62

50

44

37

33

27

25

23

22

22

22

31

31

32

32

32

32

31

29

28

*28

26

23

22

21

20

1,187

39.6

0.743

0.83

Calendar year 1955: Max 418 Win 2.4 Mean 53.2 Cfsm 0.998 In. 13.53

Water year 1955-56: Max 770 Min 4.1 Mean 81.4 Cfsm 1.53 In. 20.78

Peak discharge (base, 500 cfs).--Oct. 17 (1 a.m.) 376 cfs (4.60 ft); Mar. 8 (4:30 p.m.) 841 cfs 

(6.19 ft); Apr. 5 (11:45 p.m.) 629 cfs (5.53 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note.--Backwater from aquatic vegetation Oct. 1 to Nov. 15, July 2 to Sept. 30.
354 SUSQUEHANNA RIVER BASIN

Flvemlle Creek near Kanona, N. Y.

Location. Lat 42"23'15", long 77°21 I 30", on left bank Just downstream from highway 

bridge, l£ miles upstream from mouth and Kanona, Steuben County.

Drainage area. 68.0 sq ml.

Records available. February 1937 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 1,171.30 ft above mean sea level (levels 

by Corps of Engineers).

Average discharge.--19 years, 73.0 cfs.

Extremes.--Maximum discharge during year, 2,680 cfs Mar. 7 (gage height, 4.59 ft); minimum, 3.2 cfs Oct. 5; minimum gage height, 0.545 ft Aug. 28.

1937-56: Maximum discharge, that of Mar. 7, 1956; maximum gage height, 6.10 ft 

Mar. 31, 1940 (Ice Jam); minimum discharge, 0.04 cfs Sept. 27, 29, 1941; minimum gage 

height, 0.395 ft July 26, 1955.

Remarks. Records good except those for periods of ice effect or backwater from aquatic 

vegetation, which are fair.

Rating tables, water year 1955-56, except periods of ioe effect or backwater 

from aquatic vegetation (gage height, in feet, and discharge, in cubic 

feet per second)

Oct. 1 to Mar. 7 Mar. 8 to Sept. 30

1.4

3.0 

2.5 

3.0 

3.5 

4.3

187

346

637

1,070

3,000

5.5

13

36

62

171

3.0 

3.5

331

634

1,070

1,850

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

C5.0

C4.3

C4.0

C3.6

C5.4

018

C41

C98

053

C29

020

017

c!3

C840

1.550

1,510

1,160

639

264

164

124

107

90

90

*175

133

90

74

63

106

306

7,783.3

251

3.69

4.26

Nov.

166

111

87

77

66

59

54

47

43

40

40

39

35

 84

106

602

691

358

160

131

123

113

140

337

139

106

92

85

66

50

4,036

135

1.99

2.21

Dec.

47

45

50

386

531

159

111

94

92

 73

66

60

56

52

49

49

47

47

46

46

45

45

43

43

260

185

104

86

70

58

50

2,794

90.1

1.32

1.53

Jan.

43

42

 41

43

43

43

42

41

40

60

74

58

5O

43

36

31

27

23

21

31

21

33

22

31

20

19

19

18

18

19 

20

1,039

33.5

0.493

0.57

Feb.

20

19

19

19

11

»18

45

64

68

62

52

58

49

43

50

64

54

78

100

54

43

40

36

35

74

200

18?

125

106

1,794

61.9

0.910

0.98

Mar.

104

103

183

249

207

350

1,980

1,720

 1,330

667

573

761

421

314

331

150

145

150

140

113

98

93

90

84

80

85

100

95

100

124 

134

10,960

354

5.31

5.99

Apr.

142

289

701

1,530

1,380

798

563

459

340

363

369

294

 229

169

144

315

285

178

138

119

106

106

114

133

97

93

93

110

387

334

10,376

343

5.04

5.63

May

189

 138

148

109

95

1O6

117

85

70

75

75

395

330

146

102

107

95

88

80

69

59

53

44

40

35

33

30

30

37

35

T5

2,838

91.5

1.35

1.55

June

136

76

74

71

51

40

33

28

35

31

19

15

13

13

33

180

156

44

 24

18

15

16

15

40

21

14

13

11

10

9.1

1,231.1

41.0

0.603

0.67

July

11

10

7.5

6.7

10

31

35

19

354

113

56

34

35

37

36

23

33

16

12

13

158

182

199

87

 50

40

33

35

20

17

18

1,689.2

54.5

0.801

0.92

Aug.

19

13

11

9.6

9.1

9.6

 10

11

9.6

9.6

8.6

8.2

7.7

27

19

16

8.5

6.9

7.5

7.8

7.1

6.3

5,8

8.3

8.2

7.5

6.5

66

393

180

220

1,037.4

33.5

0.493

0.57

Sept.

129

88

63

42

33

28

35

23

19

17

17

16

15

13

13

76

84

49

30

37

35

31

30

33

22

19

16

15

13

13

992

33.1

0.487

0.54

Calendar year 1955: Max 1,550 Win 0.6 Mean 90.7 Cfsm 1.33 In. 18.11

Water year 1955-56: Max 1,980 Mln 3.4 Mean 137 Cfsm 1.87 In. 35.41

Peak discharge (base. 880 cfs).--Oct. 14 (6:30 p.m.) 1.830 cfs (4.08 ft); Nov. 16 (11:45 a.m.) 

936 cfs (3.37 ft); Mar. 7 (7:30 a.m.) 3,680 cfs (4.59 ft); Mar. 12 (3:45 a.m.) 900 cfs (3.33 ft); 

Apr. 4 (5:30 p.m.) 3,030 cfs (4.31 ft).

 Discharge measurement made on this day.

c Backwater from aquatic vegetation.

Note.--Stage-discharge relation affected by ice Nov. 39 to Dec. 1, Dec. 1O to Feb. 35, Feb. 28 to 

Mar. 1, Mar. 16-32, 24, 25.
SUSQUEHANNA RIVER BASIN 355

Mud Creek near Savona, N. Y.

Location. Lat 42°18'30", long 77°11 I 50", on left bank Just upstream from small tributary 

entering from east, 2 miles upstream from Savona, Steuben County, and mouth.

Drainage area. 76.1 sq mi.

Records available. July 1918 to December 1919 (published as "at Savona"), March 1937 to 

September 1956.

Sage. Water-stage recorder and concrete control. Datum of gage is 1,049.63 ft above mean 

sea level, adjustment of 1912 (levels by Corps of Engineers). Prior to December 1919, 

staff gage at site l| miles downstream at different datura.

Average discharge. 20 years (1918-19, 1937-56), 44.8 cfs.

Extremes.--Maximum discharge during year, 1,860 cfs Mar. 7 (gage height, 6.89 ft); minimum, 1.3 cfs Oct. 4, 5 (gage height, 0.615 ft).

1918-19, 1937-56: Maximum discharge, that of Mar. 7, 1956; minimum, 0.04 cfs 

Sept. 21, 22, 23, 1941 (gage height, 0.53 ft).

Remarks. Records good except those for periods of ice effect or fragmentary gage-height 

record, which are fair. Plow regulated by Lake Lamoka. During each year, a large part 

of flow from 45 sq mi of drainage area is diverted into Keuka Lake (St. Lawrence River 

basin) for power development.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 4 Apr. 5 to Sept. 30

1.1

2.9

5.6

9.4

21

45

2.0 

3.0 

4.0

5.0 

6.5

118

291

555

902

1,630

0.6 

.7

1.6 

3.4 

6.2

0.9 

1.1

Note. Same as preceding 

table above 1.1 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2.1

1.8

1.5

1.3

T73

3.0

4.6

f28

f26

17

8.0

5.9 

4.8

501

*1300

1,320

1,100

855

703

599

413

227

186

93

61

48

38

31

26

55

340

8,001.3

258

-

-

Nov.

265

166

116

85

76

70

43

26

23

23

22

21 

20

*28

34

263

'259 541

293

268

149

121

172

216

92

53

59

87

b80

60

3,771

126

-

-

Dec.

b32

28

30

136

170

68

41

34

33

*b28

b27

b26 

24

b23

b22

b21

19

16

14

b!3

b!2

b!2

12

13

34

27

17

13

12

11

TT

979

31.6

-

-

Jan.

10

blO

10

11

12

*12

11

10

10

14

18

20 

18

b!4

13

11

9.9

9.4

8.9

8.9

8.9

9.2

9.2

b9.0

b6. 8

be. 6

be. 4

b8.2

bB.O

7.7

tt

336.0

10.8

-

-

Feb.

8.6

8.6

b6. 6

8.6

8.4

*8.2

16

19

25

25

24

26 

26

22

27

b29

b27

32

37

34

b26

b21

20

17

48

124

116

121

160

1,073.0

37.0

-

-

Mar.

140

110

177

229

*237

477

1.490

1,400

1,170

879

788

770 

631

564

*498

413

b!65

b245

283

237

b90

68

62

58

55

55

131

169

163

80

66

11,900

384

-

-

Apr.

62

103

432

877

806

621

596

615

549

522

528

424 

205

81

67

172

311

250

184

108

52

54

60

118

56

*44

44

61

192

164

8,358

379

-

-

May

76

*58

66

130

141

84

107

55

41

35

34

140 

158

138

122

87

58

54

50

46

42

26

21

19

18

16

15

15

15

13

T4

1,894

61.1

-

-

June

23

22

75

53

19

14

12

10

9.5

9.2

8.6

*8.0 

7.2

7.4

7.8

7.8

11

11

8.5

7.6

8.6

8.1

7.6

7.4

6.6

5.8

5.3

5.2

4.4

4.0

394.6

13.2

-

-

July

4.6

4.3

4.2

4.2

7.6

8.8

7.4

5.6

11

13

10

8.1 

7.2

9.9

11

10

7.8

6.2

5.0

7.6

11

32

103

66

33

18

 13

9.5

8.1

7.4

6.4

460.9

14.9

-

-

Aug.

6.0

5.4

5.0

4.4

4.2

3.9

*4.7

4.4

3.6

3.3

3.1

3.2

3.1

3.5

3.6

3.8

3.6

3.6

3.5

3.5

3.3

3.0

2.7

4.2

4.7

4.4

3.5

3.6

8.5

16

23

156.3

5.04

-

-

Sept.

26

21

20

15

9.2

6.7

6.6

7.1

6.9

6.2

6.0

5.9 

5.6

5.0

4.7

9.7

17

17

13

11

9.7

8.6

8.3

11

13

12

9.2

8.0

6.9

5.9

312.2

10.4

-

-

Calendar year 1955: Max 1,320 Min 0.5 Mean 56.0 Cfsm - In.

Water year 1955-56: Max 1,490 Min 1.3 Mean 103 Cfsm - In.

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
356 SUSQUEHANNA RIVER BASIN

Cohocton River near Campbell, tf. Y.

Location. Lat 42°15'10", long 77°13'00", on left bank Just downstream from highway bridge, 

lj miles upstream from Michigan Creek and 2 miles upstream from Campbell, Steuben 

County.

Drainage area.--472 sq mi.

Records available. July 1918 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,016.58 ft above mean sea level, adjustment of 1912. Prior to Mar. 5, 1937, chain gage on highway bridge at same site and 

datum.

Average discharge. 38 years, 449 cfs.

Extremes.--Maximum discharge during year, 14,900 cfs Mar. 7 (gage height, 8.79 ft); minimum, 24 cfs Oct. 5 (gage height, 0.61 ft, backwater from weeds).

1918-56: Maximum discharge, 41,100 cfs July 8, 1935 (gage height, 11.6 ft, from 

floodmarks), from rating curve extended above 11,000 cfs on basis of velocity-area and 

slope-area determinations of peak flow and by logarithmic plotting; minimum, 8 cfs 

Sept. 6, 7, 1934.

Remarks. Records excellent except those for periods of ice effect or backwater from weeds, 

which are fair. During each year a large part of flow from 45 sq mi of drainage area 

above Lake Lamoka Outlet on Mud Creek, a tributary above this station, is diverted into 

Keuka Lake (St. Lawrence River basin) for power development. Records of chemical 

analyses and water temperatures for the water year 1956 are given in WSP 1450.

Revisions (water years).--WSP 756: Drainage area. WSP 891: 1935.

Rating tables, water year 1955-56, except periods of ice effect or backwater 

from weeds (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr Apr. 5 to Sept. 30

0.7 91

1.0 187

1.5 422

2.0 738

3.0 1,560

5.0 4,010

7.0 7,660

8.1 11,600

0.7 84

1.0 171

1.5 381

£.0 675

3.0 1,540

5.0 4,010

7.0 7,660

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

10

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

35

32

30

27

26

52

122

270

210

140

104

86

76

3,200

*7,760

6,520

5,460

3,200

2,100

1,580

1,210

898

752

630

834

637

529

457

416

834

1,580

39,807

1,284

-

-

Nov.

1,220

890

731

617

541

486

422

362

336

321

311

292

274

*370

439

3,320

3,060

1,670

1,290

1,130

935

816

853

1,160

781

650

604

604

460 

440

25,385

846

-

-

Dec.

380

367

372

917

1,180

731

598

529

510

*445

410

384

360

340

320

300

290

270

250

235

230

225

220

230

740

620

460

410

360

320

280

13,283

428

-

-

Jan.

260

250

230

240

250

*245

235

210

200

240

292

280

260

220

200

175

160

145

135

125

125

130

135

130

125

122

118

116

114

116

120

5,703

184

-

~

Feb.

118

118

116

116

114

114

220

300

370

360

320

350

*330

290

300

340

320

360

450

350

280

250

230

220

400

1,140

1,010

780

680

10,346

357

-

-

Mar.

620

T34

,220

,510

* ,290

,680

1 ,600

1 .,200

,390

,390

,130

,480

,910

,440

* ,980

,600

,220

,180

,160

,000

820

752

731

690

644

657

774

802

802 

802

774

72,982

2,354

-

-

Apr.

774

,260

,760

,700

,580

,640

,010

,710

,860

,740

,500

,080

,680

,270

,120

,800

,830

1,440

1,180

984

808

808

800

951

718

*668

661

740

1,320

1,570

63,962

2,132

-

-

May

1,200

*1,010

1,040

918

862

793

870

655

563

576

563

1,650

1,440

1,190

968

935

800

718

655

582

521

464

422

396

357

328

315

315

297 

275

292

21,970

709

-

"

June

514

437

443

437

343

306

275

250

238

219

203

185

171

164

244

589

454

267

207

178

171

168

154

207

171

148

135

132

124 

115

7,649

255

-

"

July

115

126

118

109

138

207

185

154

568

375

238

203

242

304

234

193

178

151

135

135

364

494

697

420

280

226

*203

170

145 

125

7,350

237

-

Aug.

120

*106

100

92

86_

92

106

130

110

118

110

100

94

135

150

125

110

100

104

104

96

86

90

112

112

86

92

96

720 

580

740

5,002

161

-

"

Sept.

600

500

420

320

260

225

210

185

170

160

145

*145

135

125

124

300

390

280

220

205

195

180

ISO

235

195

170

155

140

130 

125

6,824

227

-

~

Calendar year 1955: Max 7,760 Mln 13 Mean 505 Cfsm 1.07 In. 14.53

Water year 1955-56: Max 11,600 Mln 26 Mean 766 Cfsm 1.62 In. 22.09

Peak discharge (base, 4,200 cfs). Oct. 15 (4:15 a.m.) 9,230 cfs (7.52 ft); Nov. 16 (5 p.m.) 

5,910 cfs (6.15 ft); Mar. 7 (1:15 p.m.) 14,900 cfs (8.79 ft); Mar. 11 (12 p.m.) 6,040 cfs (6.22 ft); 

Apr. 4 (12 p.m.) 10,100 cfs (7.75 ft).

* Discharge measurement made on this

Note. Stage-discharge relation affe

day. 

cted by Ice Dec. 1, Dec. 11, Dec. 13 to Jan. 10,

Feb. 25, Feb. 28 to Mar. 1, Mar. 17-21. Backwater from weeds Oct. 1-14, July 28 to
SUSQUEHANNA RIVER BASIN 

Newtown Creek at Elmira, N. Y.

367

Location.--Lat 42°06'15", long 76°47'5S", on left bank 200 ft downstream from Linden Place 

Bridge in Elmira, Chemung County, and 1^ miles upstream from mouth.

Drainage area. 79.8 sq mi.

Records available.--May 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 834.53 ft above mean sea level (levels by 

Corps of Engineers).

Average discharge.--18 years, 90.0 cfs.

Extremes. Maximum discharge during year, 3,350 cfs Oct. 16 (gage height, 17 06 ft)- minimum daily, 16 cfs Oct. 5, Aug. 23, 27; minimum gage height, 4.58 ft Oct. 3, 5, 6.

1938-56: Maximum discharge, 3,460 cfs Dec. 30, 1942; maximum gage height, that of 

Oct. 16, 1955; practically no flow Aug. 17, 1938.

Remarks. Records good except those for periods of ice effect, doubtful gage-height record, or shifting control, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect or shifting 

control (gage height, In feet, and discharge, In cubic feet per second)

Oct. 16 to Sept. 30

4.5 

4.7 

5.1 

5.5 

6.0

14

26

67

121

204

11.0

14.0

409

655

1,530

2,430

4.6 

4.9 

5.4 

6.0

92

191

7 .0 408

8.0 655

11.0 1,530

15.0 2,730

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

19

18

17

17

16

89

77

272

98

67

*52

42

38

*1,860

2,370

*2,580

899

406

278

203

154

129

106

106

140

100

87

77

71

357 

563

11,308

365

4.57

5.27

Nov.

240

172

140

131

108

92

84

*70

72

69

69

71

66 ilg

103

350" 741

2O4

163

149

134

126

157

188

120

105

100

98

78

72

4,395

146

1.83

2.05

Dec.

67

65

66

112

116

*82

71

65

64

58

56

54

52

49

47

43

45

42

40

36

34

34

35

37

95

69

48

44

39

41

37

1,743

56.2

0.704

0.81

Jan.

35

32

36

37

37

*37

35

29

31

42

89

95

66

52

49

43

42

36

33

32

31

32

30

29

28

27

26

25

28 

31

29

1,204

38.8

0.486

0.56

Feb.

2.8

30

29

27

30

*30

42

60

69

68

74

93

105

83

131

117

83

132

153

120

84

60

56

54

214

355

176

127

96

2,726

94.0

1.18

1.27

Mar.

83

214

381

376

245

1,050

Z.130

1,820

d720

d430

*d440

353

234

210

170

124

116

122

110

99

93

92

100

96

90

92

96

90

88 

86

86

10,436

337

4.22

4.86

Apr.

110

284

885

1,440

902

461

662

605

446

*548

537

401

301

236

204

324

264

202

170

149

132

132

135

152

121

118

120

123

256 

*204

10,624

354

4.44

4.95

May

146

127

168

120

109

106

123

95

83

82

84

278

146

116

93

89

82

77

72

64

59

54

55

52

49

47

45

45

44 

42

ii

2,793

90.1

1.13

1.30

June

46

45

46

47

42

40

38

36

34

34

30

29

28

42

55_

42

38

33

31

30

29

*27

27

29

27

25

27

29

30 

29

1,045

34.8

0.436

0.49

July

26

28

30

28

51

42

32

30

35

28

26

31

39

42

35

*31

28

25

24

45

79

62

108

56

45

53

40

35

31 

29

27

1,221

39.4

0.494

0.57

Aug.

26

25

24

23

22

22

23

22

*22

26

24

22

23

28

23

21

19

19

22

21

19

17

16

24

20

17

16

20

78 

69

50

803

25.9

0.325

0.37

Sept.

42

35

30

25

23

22

23

20

19

18

18

18

18

17

40

220 10"0

68

48

74

54

45

49

*142

66

55

48

45

43 

42

1,467

48.9

0.613

0.68

Calendar year 1955 : Max 2,580 Mln 7.6 Mean 98.0 Cfsm 1.23 In. 16.67

Water year 1955-56 : Max 2,580 Mln 16 Mean 136 Cfsm 1.70 In. 23.18

Peak discharge (base. 2,100 efs).--0ct. 16 (12:45 a.m.) 3,350 cfs (17.06 ft); Mar. 7 (12:30 p.m.) 

2,610 ofs (14.61 ft) .

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of records for nearby stations and 

weather records.

Note.--Stage-discharge relation affected by ice Dec. 10-24, Dec. 27 to Jan. 3, Jan. 7-9, 17-29, 31, 

Feb. 1, 3, 4, 22-24, Mar. 15-19, Mar. 22 to Apr. 1. Shifting-control method used Oct. 1-8, June 12 

to Sept. 30.

505690 O - 59 - Z4
358 SUSQUEHANNA RIVER BASIN

Chemung River at Chemung, N. Y.

Location. Lat 42°00'10", long 76°38'00" , on right bank 60 ft downstream from highway

bridge, three-quarters of a mile southwest of Chemung, Chemung County, and 10 miles upstream from mouth.

Drainage area. 2,530 sq ml, approximately.

Records available. September 1903 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 778.63 ft above mean sea level, adjustment 

of 1912 (levels by Corps of Engineers). Prior to Jan. 10, 1930, chain gage on highway 

bridge 60 ft upstream at same datum.

Average discharge. 50 years (1905-13, 1914-56), 2,502 cfs.

Extremes. Maximum discharge during year, 89,000 cfs Oct. 15 (gage height, 20.13 ft); minimum, 175 cfs Oct. 5 (gage height, 2.47 ft, backwater from weeds).

1903-56: Maximum discharge, 132,000 cfs May 28, 1946 (gage height, 23.97 ft), from 

rating curve extended above 65,000 cfs on basis of slope-area and velocity-area studies 

at gage height 19.57 ft and slope-area and contracted-opening determinations at gage 

height 23.97 ft; minimum, 49 cfs Aug. 14, 1911 (gage height, 1.47 ft).

Revisions. The maximum discharge for the water year 1915 has been revised to 55,700 

cfs Feb. 25, 1915 (gage height, 16.42 ft), superseding figure published In WSP 401.

Remarks. Records excellent except those for periods of Ice effect or backwater from 

weeds, which are good.

Revisions (water years).--WSP 696: Drainage area. WSP 891: 1935-39. Revised figures of 

discharge, In cubic feet per second, for the water years 1904, 1907, and 1915, superseding those published In WSP 109, 241, and 401, are glyen herewith:

1907 

July 30. 260

1915 

Feb. 16........ 32,000

24........ 30,500

25........ 51,400

26........ 23,000

Month

June 1904 ......................

Calendar year 1915. ..........

Maximum

11 , 600

29,300

51,400

Minimum

645

235

80

257

Mean

3,079

2,230

3,190

Per square 

mile

1.22

.881

1.26

Runoff in 

inches

1.36

10.74

11.96

4.16

15.54

17.09
SUSQUEHANNA RIVER BASIN 359

Cheraung River at Cheraung, N. Y. Continued

Rating tables, water year 1955-56, except periods of ice effect or backwater 

from weeds (gage height, in feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 4 Apr. 5 to Aug. 31 Sept. 1-30

2.4

2.5

5.0

3.5

4.0 

5.0

156

202

480

666

1,360 

2,810

6.0

8.0

11.0

14.0

17.0 

19.0

4,

10,

21,

33,

52, 

73,

760

200

000

800

900 

200

2.9

3.0

5.5

4.0

Note 

table

570

450

800

1,280

. Same 

above 11

5.0

6.0

8.0

11.0

2,660

4,600

10,100

21,000

as preceding 

.0 ft.

3

3

4

5

6

.1

.5

.0

.0

.0

450

750

1,240

2,600

4,590

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17 

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

c210

c200

c!95

c!90 eieo

c260

c440

cl,550

cl,650

cl,220

c640

0640

C560 

17,700

71.600

42,500

34,200 

18,400

11,500

7,560

*5,660

4,360

3,600

3,090

3,820

4,160

3,210

2,640

2,320

3,760

12,200

260,655

8,408

3.32

3.83

Nov.

7,160

5,070

4,100

3,590

3,070

2,660

2,350

2,110

1,860

1,740

1,660

1,620

1.510 

3,170

5,060

11,500

24,600 

10,800

7,240

5,990

*5,100

4,630

4,160

6,370

5,060

3,920

3,470

3,210

2,810

2,140

147,610

4,927

1.95

2.17

Dec.

b2,050

1,910

1,690

2,300

6.450

4,090

2,960

2,500

2,260

b2,050

1,750

1,710

1,570 

1,380

*bl,400

bl,120

bl,160 

1,160

bl,140

b680

b740

b700

b655

b900

b2,000

4,150

bl,900

bl,400

bl,250

bl,160

bl,020

57,770

1,664

0.737

0.85

Jan.

b960

b900

913

1,040

980

932

b860

b760

b620

794

1,490

2.170

1,620 

1,230

bl,160

*b 1,060

b980 

b920

b660

b680

712

762

668

b660

b620

b600

b560

b560

b560

583

b620

27,894

900

0.356

0.41

Feb.

b640

612

576

520

b500

bSOO

642

857

1,450

1,830

2,300

2,120

1,960 

1,630

2,020

3,200

2,460 

2,430

4,610

3,920

*2,760

b2,050

bl,700

bl,500

2,460

12.600

7,150

4,540

3,270

73,067

2,520

0.996

1.07

Mar.

2.76Q

3,520

10,200

9,620

7,250

23,100

53,700

66.900

44,300

20,600

*17,100

19,700

11,400 

*9,230

7,640

6,350

b4,400 

b4,700

b4,500

3,940

3,530

3,290

3,290

3,320

3,120

3,070

3,300

3,700

3,610

3,530

3,960

366,630

11,690

4.70

5.42

Apr.

4,040

6,730

16,100

40,800

*41.600

23,300

19,200

22,500

15,100

15,700

13,600

10,800

8,590 

6,860

5,760

6,270

9,740 

6,730

5,500

4,620

3,660

3,700

3,940

4,560

3,660

3,340

3,340

5.510

5,060

6,490

327,260

10,910

4.51

4.61

May

5,420

4,290

4,600

4,070

5,520

5,200

4,180

3,960

2,960

2,690

3,040

4,710

8.470 

7,630

*5,160

4,200

4,090 

3,450

5,290

2,690

2,450

2,140

1,940

1,750

1,590

1,420

1,320

1,250

1,200

1 130 iloeo

103,110

3,326

1.31

1.52

June

1,300

2.010

1,710

1,740

1,640

1,590

1,250

1,160

1,100

1,070

1,020

953

863 

768

865

1,270

1,690 

1,250

926

768

*696

640

633

635

633

612

564

526

493

456

50,631

1,021

0.404

0.45

July

430

450

418

412

587

962

1,060

600

712

1,150

917

744

776 

1,090

1,250

*1,000

776 

656

570

704

1,070

2.410

2,230

1,900

1,320

1,060

661

1,040

645

712

626

29,516

952

0.376

0.43

Aug.

577

542

500

458

430

418

617

990

*836

728

966

726

596 

563

565

612

521 

458

458

450

466

456

406

4BT

466

619

495

465

1,210

5 .260

2 1QO

22,527

727

0.267

0.33

Sept.

5.520

2,430

3,110

1,750

1,280

1,050

912

822

716

630

576

541

513 

499

I§9

761

*2,270 

1,920

1,570

1,240

1,170

1,110

960

1,230

1,180

940

766

694

636

583

35,902

1,197

0.475

0.55

Calendar year 1955: Max 71,600 Mln 74 Mean 2,671 Cfsm 1.06 In. 14.32

Water year 1955-56: Max 71,600 Mln 180 Mean 4,057 Cfsm 1.60 In. 21.62

Peak discharge (base. 30.000 efs). Oct. 15 (2:30 p.m.) 89,000 cfs (20.15 ft); Nov. 17 (6 a.m.) 

32,400 cfs (13.75 ft); Mar. 8 (2:*5 a.m.) 76,100 cfs (19.22 ft); Apr. 5 (10:45 a.m.) 45,500 cfs 

(16.02 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

c Backwater from weeds.
360 SUSQDEHANNA RIVER BASIN

Susquehanna River- at Towanda, Pa.

Location. Lat 41°45'55", long 76°26'25", on right bank under Bridge Street Bridge at 

Towanda, Bradford County, 1-J miles upstream from Towanda Creek.

Drainage area.--7,797 sq mi.

Records available.--October 1918 to October 1920 and October 1931 to September 1956 in 

reports of Geological Survey. January 1914 to September 1918 (gage heights and discharge measurements only) and October 1918 to September 1941 in reports of Pennsylvania Department of Forests and Waters. Gage-height records collected at same site 

since October 1892 are contained in reports of D. S. Weather Bureau.

Gage. Water-stage recorder. Datum of gage is 694.38 ft above mean sea level, datum of 

1929. Oct. 1, 1892, to Sept. 30, 1914, staff gage, Oct. 1, 1914, to Oct. 16, 1934, 

chain gage, and Oct. 17, 1934, to Sept. 30, 1938, wire-weight gage, all at same site 

and datum.

Average discharge .--38 years (1918-56)', 10,380 cfs.

Extremes.--Maximum discharge during year, 160,000 cfs Mar. 8 (gage height, 22.28 ft); minimum, 1,060 cfs Aug. 23, 24 (gage height, 0.50 ft).

1892-1956: Maximum discharge, 191,000 cfs May 29, 1946 (gage height, 25.08 ft); 

minimum, 379 cfs Sept. 25, 1939 (gage height, -0.23 ft).

Maximum stage known prior to 1892, 25.0 ft Mar. 17, 1865 (discharge, about 188,000 

cfs).

Remarks. Records excellent except those for periods of ice effect, which are fair. 

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, ept periods of lee effect (gage height, 

in cubic feet per second)

Oct. 1 to Mar Mar. 9 to Sept. 30

0.5 1,060

1.0 1,980

2.0 4,780

4.0 12,600

8.0 34,000

12.0 61,500

21.5 151,000

0.5 

1.0

1,060

1,920

2.0 

4.0

4,510

12,600

Note. Same as preceding 

table above 4.0 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Cfsm

In.

Oct.

1,350

1,300

1,330

1,200

1,110

1,250

3,490

8,350

10,800

9,020

6,760

5,130

4,090

15 , 400

75,500

122,000

90,700

57,300

43 , 600

30,900

23,100

17,600

14,000

12,200

12,200

14,000

*13,300

11,500

10,400

1£ , 400

48,300

680,580

21,950

2.82

3.25

Nov.

39,800

29,800

22,500

19,000

17,000

16,500

14,000

12,200

11,000

10,200

9.850

10,000

10,200

12,200

17,000

27,200

53,900

35,600

25^600

21,500

19,000

17,000

15,500

17,000

17,000

14,500

13,000

11,700

11,000

9,850

560,600

18,690

2.40

2.67

Dec.

9,060

8,470

8,080

8,470

*15,700

20.500

17,000

14,000

11,700

11,000

9,600

8,500

7,600

7,000

6,600

5,900

5,300

4,900

4,100

3,600

3,200

2,900

2.800

3,300

4,700

8,000

7,200

6,100

5,400

4,900

4,500

240,080

7,745

0.993

1.15

Jan.

4,100

4,000

4,300

*4,610

4,780

4,780

4,780

3,800

5.200

3,500

6,380

11,700

15,000

13,000

11,000

9,850

9,060

7,700

6,760

6,020

5,660

5,480

5,300

4,780

4,440

4,000

3,700

3,600

3,600

3,800

4,280

186,960

6,031

0.774

0.89

Feb.

4,280

4,120

3,930

3,630

3,630

5.450

3,960

5,130

*6,200

7,320

8,470

9,850

11,200

9,850

9,850

11,200

10,400

11,100

15,500

15 , 000

12,200

9,650

8,280

7,510

8,900

27.000

25,600

21,000

16,500

294,710

10,160

1.30

1.41

Mar.

14,000

13,500

24,500

30,400

27,400

49,200

99,800

150,000

139,000

86,600

63,100

58,600

*47,400

39,000

34,600

29,800

24,000

21,000

19,500

18,500

17,000

15,500

15 , 000

15,000

14,500

13,500

13,500

14,000

13,500

15 . OOP

13,500

*1A47.9

37,030

4.75

5.48

Apr.

14 . OOP

18,000

33,300

73,900

111,000

103,000

95,100

102,000

79,900

65,500

58,600

50,900

46,000

44,600

39,700

*39,700

50,200

51,600

44,600

36,400

30,400

26,200

26,800

28,000

25,600

22,500

21,500

20,500

£1,500

26,800

tt.,407.8

46,930

6.02

6.71

May

29.800

26,800

23,500

21,500

19,000

17,500

17,500

17,000

15,500

12 , 600

12 , 600

14,000

19,000

19,500

16,000

13,500

13,500

13,000

12 , 600

11,700

10,400

9,460

8,580

7,950

7,530

7,120

6,330

*6,140

*6,520

6,140

5.610

427,880

13 , 800

1.77

2.04

June

6,140

10,400

11,700

12 . 600

12,200

10,100

8,580

7,530

6,520

5,780

5,440

5,440

5,120

4,810

4,960

5,120

5,120

4,660

3,930

3,290

3,070

2,720

2,620

2,790

3,100

2,840

2,620

2,420

2,240

2.120

165,980

5,533

0.710

0.79

July

2,020

1,900

1,760

1.650

1,900

3,820

4,960

4,510

4,080

3,930

3,930

*3,320

3,100

3,400

3,650

3,570

3,180

2,690

2,280

2,600

5,050

9,680

11,700

12,200

9,020

7.53P

6.52P

4.96P

4.22P

3.34P

2,82P

139,290

4,493

P. 576

0.66

Aug.

2,450

2,220

2,000

1,840

1,670

1,580

1,520

2,000

1,940

1,780

1,740

1,820

1,510

1,440

1,400

1,470

1,400

1,340

1,290

1,230

1,150

1,160

*1.090

1,100

1,140

1,290

1,270

1,270

1,640

4.290

3,800

52,840

1,705

0.219

0.25

Sept.

5,360

6,140

6,140

4,510

3,340

2,760

2,300

2,120

1,960

1,700

1,560

1,490

1,370

1,310

1.290

1,470

5,130

7,950

7,740

5,960

6,720

6,920

5,610

7,040

12.600

12,600

8,800

6,330

5,120

4,660

-------

148,000

4,933

0.633

0.71

Calendar year 1955: Max 122,000 Min 560 Mean 10,880 Cfsm 1.40 In. 18.95

Water year 1955-56: Max 150,000 Min 1,090 Mean 14,900 Cfsm 1.91 In. 26.01

Peak discharge (base, 68.000 cfs). Oct. 16 (4:30 p.m.) 124,000 cfs (18.96 ft); Mar. 8 (4:30 p.m.) 

160,000 cfs (£2.28 ft); Apr. 5 (7:30 p.m.) 118,000 cfs (18.27 ft).

* Discharge measurement made on this day.

* Expressed in thousands.

Note. Stage-discharge relation affected by ice Dec. 11 to Jan. 3, Jan. 8-10, 26-30.
SUSQUEHANNA RIVER BASIN 361

Towanda Creek near Monroeton, Pa.

Location.--Lat 41°42'25", long 76°28'20", on left bank 10 ft upstream from Lehlgh Valley 

Railroad bridge, 1,000 ft upstream from South Branch Towanda Creek, and half a mile 

south of Monroeton, Bradford County.

Drainage area.--215 sq ml.

Gage . Water-stage recorder. Datum of gage Is 753.70 ft above mean sea level, datum of 

T929. Prior to Oct. 1, 1942, chain gage at site 1 mile upstream at datum 20.44 ft 

higher.

Average discharge. 38 years (1914-16, 1920-56), 284 cfs.

Extreme a . --Maximum discharge during year, 10,500 cfs Oct. 14 (gage height, 7.87 ft); minimum, 16 cfs Aug. 28 (gage height, 0.30 ft).

1914-56: Maximum discharge, 31,300 cfs (corrected) May 28, 1946 (gage height, 12.53 

ft), from rating curve extended above 9,500 cfs on basis of slope-area and contractedopening determination at gage height 10.33 ft; minimum observed, 0.7 cfs Sept. 15, 17, 

21, 22, 193C.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown In the following table. They supersede figures published In the water-supply 

papers Indicated.

WSP

5£1 

726 

741 

756 

781 

801 

851 

891

Water 

year

1921 

1932 

1933 

1934 

1935 

1936 

1938 

1940

Date

Apr. 23, 1921 

Mar. 31, 1932 

Aug. 24, 1933 

Sept. 17, 1934 

Dec. 1, 1934 

Mar. 18, 1936 

Nov. 13, 1937 

Mar. 30, 1940

Discharge 

(cfs)

4,340 

4,340 

t!8,500 

6,650 

8,500 

21,200 

5,740 

17.7UO

Gage height 

(feet)

g5.7 

5.70 

alO.2 

f6.8 

g?.5 

flO.78 

6.40 gio.o

t Not previously published.

a Estimated.

f From floodmark.

g From graph based on gage readings.

Remarks . Records good except those for periods of Ice effect, backwater from leaves 

and/or shifting-control, which are fair.

Revisions (water years ) .--WSP 756: Drainage area. WSP 1051: 1943-44 (M). Revised 

figures of discharge, In cubic feet per second, for high-water periods In the water 

years 1933, 1936, and 1940, superseding those published In WSP 741, 801, and 891, are 

given herewith:

1333 

Aug. 24. ........... 11,800

25... ......... 2,720

Sept. 3... ......... 2,910

4. ........... SjOOO

5..... ....... 2,360

1936-Con. 

Mar. 14. ........... 2,310

15. ........... 2,410

16. ........... 4,330

17. ........... 9,080

18. ........... 11,300

1940 

Mar. 30. ........... 7,050

31. ........... 11,700

Month

Calendar year 1933 ............

Calendar y»ar 1936. ...........

Water year 1939-40 ............

Cfs-days

_

_

_

-

113,600.6

112,549.5

124,393.5

Maximum

8,OOO

11,800

11,400

11,700

11,700

Minimum

111

9.3

1.0

1.0

8.8

8.8

Mean

891

369

346

2,287

311

310

873

308

340

Per square 

mile

3.15

4.16

1.72

1.62

10.69

1.45

1.45

4.08

1.44

1.59

Runoff In 

Inches

3.63

4.65

23.40

21.96

12.32

19.79

19.75

4.70

19.56

21.62
362 SUSQUEHAHNA RIVER BASIN 

Towanda Creek near Monroeton, Pa.--Continued

Rating table, water year 1955-56, except periods of ice effect, backwater 

from leaves and/or shifting-control (gage height, In feet, and 

discharge, in cubic feet per second)

0.3 

.5

.7 

1.0 

1.5

41

79

164

369

2.0 

3.0 

4.0

5.3

659

1,520

2,670

4,640

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

32

29

27

25

24

52

104

89

89

68

56

51

44

4.580

3,610

3,360

2,770

1,280

773

550

409

336

287

258

379

327

*258

*218

207

1,130

1,600

23,022

743

3.46

3.98

Nov.

834

581

446

409

331

278

245

226

203

182

192

199

185

550

420

1.800

1,300

800

600

502

441

404

360

404

331

300

274

262

207 

192

13,458

449

2.09

2.33

Dec.

182

174

174

192

214

*178

151

135

129

115

95

85

76

65

58

54

56

60

56

52

50

48

48

52

70

100

75

62

56

52

50

2,964

95.6

0.445

0.51

Jan.

48

46

50

*63

62

60

50

45

50

130

400

?90

174

124

118

107

99

79

75

70

66

64

60

56

52

49

47

47

52

75

160

2,868

92.5

0.430

0.50

Feb.

110

90

80

65

80

75

140

270

*291

496

393

457

339

258

587

371

253

1.050

736

449

304

200

170

160

843

627

364

304

241

9,803

338

1.57

1.70

Mar.

216

739

634

600

478

3,520

2,950

4.280

2,130

1,320

1,180

*1,090

781

701

633

496

430

350

320

290

270

260

300

350

320

350

370

360

370

420

519

27,027

872

4.06

4.68

Apr.

742

1,060

2,540

5. 480

2,680

1,780

2,000

1,780

1,520

1,500

1,280

1,120

1,020

858

751

*828

722

568

479

409

355

350

379

419

350

331

322

304

360

364

30,651

1,022

4.75

5.30

May

300

270

322

282

266

249

478

360

296

274

266

300

436

394

304

291

266

253

241

210

182

161

145

138

121

104

99

99

*92

70-12.

7,360

237

1.10

1.27

June

363

304

374

327

270

229

196

168

145

132

115

96

89

79

86

73

62

55

46

43

40

40

35

62

48

37

34

41

35

29_

3,653

122

0.567

0.63

July

26

24

24

23

87

96

68

50

46

44

*38

33

33

35

33

27

24

22

20

93

311

253

276

188

132

155

760

332

199

145 

107

3,704

119

0.553

0.64

Aug.

89

73

58

50

51

92

~96 166

66

53

44

35

37

44

37

32

26

23

50

58

40

29

*26

25

25

23

20

21

28

30 

164

1,611

52.0

0.242

0.28

Sept.

174

126

102

68

53

60

115

77

60

51

46

44

41

38

38

133

214

226

145

161

161

129

115

200

161

129

107

99

96 

86

3,255

108

0.502

0.56

Calendar year 1955: Max 4,580 Min 0.9 Mean 250 Cfsm 1.16 In. 15.81

Water year 1955-56: Max 4,580 Min 20 Mean 353 Cfsm 1.64 In. 22.38

Peak discharge (base, 4.500 efs).--0ct. 14 (6 p.m.) 10,500 cfs (7.87 ft); Mar. 6 (7:30 a.m.) 5,490 

cfs (5.84 ft); Mar. 8 (12 p.m.) 6,630 cfs (6.39 ft); Apr. 4 (8 p.m.) 4,320 cfs (5.08 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 11 to Jan. 11, Jan. 20 to Feb. 8, Feb. 22-24, 

Mar. 18-30. Backwater from leaves and/or shifting-control method used Oct. 1-14, Oct. 28, 29, 

Nov. 8-13, Nov. 29 to Dec. 10, Jan. 13-19., Mar. 1.
SUSQUEHANNA RIVER BASIN 363

North Pork Mehoopany Creek near Lovelton, Pa.

Location. Lat 41°31'50", long 76°09'20", on left bank 0.5 mile upstream from bridge on 

State Highway 87, 0.5 mile downstream from Douglas Hollow, 1.7 miles downstream from 

Lovelton, Wyoming County, and 2.1 miles upstream from mouth.

Drainage area. 35.2 sq ml.

Records available . December 1940 to September 1956. Prior to October 1952, published as 

North Branch Mehoopany Creek near Lovelton.

Gage.--Water-stage recorder. Datum of gage Is 842.67 ft above mean sea level, datum of 

1929.

Average discharge .--15 years (1941-56), 47.6 cfs.

Extremes.--Maximum discharge during year, 6,220 cfs Oct. 15 (gage height, 7.86 ft), from 

rating curve extended above 3,400 cfs by logarithmic plotting; minimum, 2.6 cfs Aug. 27; 

minimum gage height, 2.19 ft Oct. 5, 6.

1940-56: Maximum discharge, 9,300 cfs Mar. 11, 1952 (gage height, 8.76 ft) from 

rating curve extended above 3,400 cfs by logarithmic plotting; minimum, 0.2 cfs 

oept. i , 3, 1943.

Remarks. Records good except those for periods of Ice effect, which are fair. 

Revisions (water years). WSP 1202: 1942-44(M), 1946-50. WSP 1272: Drainage area.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

12

9.9

7.7

7.3

6.6

17

21

17 

14

12

11

9.9

9.4

269

«2.150

1,210

377

173 

113

83

65

54

45

53

66

50

*42

38

38

379 

305

5,664.8

183

5.20

5.99

Nov.

157

107

83

70

58

49

43

39

35

33

42

46

38

100

76

325

206

124 

98

83

73

62

58

56

48

43

41

39

34

29

2,295

76.5

2.17

2.42

Dec.

28

27

27

30

30

*25

22

21

20

19

18

17

16

15

15

14

14

13 

13

12

11

11

11

13

20

17

15

14

13

12

12

545

17.6

0.500

0.58

Jan.

11

10

*10

12

15

14

12

11 

10

18

50

3T

29

25

22

20

19

17 

16

15

13

13

14

12

11

10

9.5

9.5

9.5

12 

25-

509.5

16.4

O.466

0.54

Feb.

20

16

14

12

15

14

40

60 

62

*104

69

117

73

56

112

85

61

m85

60

42

36

35

129

101

67

59

49

1,857

64.0

1.82

1.96

Mar.

43

99

90

83

76

192

220

m182

138

*114

94

89

79

64

56

50 

47

45

42

i!

43

45

43

43

55

52

57

66 

72

3,470

112

3.18

3.67

Apr.

92

107

228

358

284

173

302

284

221

254

251

208

182

150

131

*168

136

108 

87

73

62

66

79

76

64

67

63

62

66

62

4,464

149

4.23

4.72

May

52

49

54

49

54

48

83

58

52

49

44

47

54

44

36

36

33

37 

34

30

26

25

23

21

19

18

19

*19

16

14 

17

1,160

37.4

1.06

1.23

June

48

41

67.

50

42

36

30

25 

22

21

19

16

14

36

40

22

18

16 

13

11

11

9.9

10

21

13

9.4

8.6

7.3

6.2

5 2

688.6

23.0

0.653

0.73

July

4.7

4.9

4.9

4.4

27

16

12

9.0 

7.3

5.9

5.2

*5.5

5.5

6.6

6.6

4.9

4.4

3.9

Z\~

46

29

41

64

161

82

90

56

38

28 

22

820.1

26.5

0.753

0.87

Aug.

18

T5

12

10

10

15

17

14 

10

8.4

6.7

7.3

11

10

7.6

5.9

4.9

4.5

5.2

5.2

4.5

4.2

*3.6

3.0

3.0

2.8

2.6

3.3

4.2

5 2

8.O

242.1

7.81

0.222

0.26

Sept.

13

11

8.4

5.9

4.5

13

33

14 

8.4

6.3

4.9

4.5

4.2

3.6

3.9

8.4

14

18 

9.4

24

20

14

12

80

37

21

15

13

12

10

443.4

14.8

0.420

0.47

Calendar year 1955: Max 2,15O Mln 0.5 Mean 52.1 Cfsm 1.48 In. 20.10

Water year 1955-56: Max 2,150 Mln 2.6 Mean 60.5 Cfsm 1.72 In. 23.44

Peak dlscharae (base, 600 cfs). Oc

778 cfs (4.85 ft); Nov. 16 (11:30 a.rt

t. 15 (11:30 a.m.) 6,220 cfs (7.86 ft); Oct. 30 (8:30 p.m.) 

.) 768 cfs (4.84 ft); Mar. 8 (5 a. in. ) 1,200 cfs (5.28 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 1O to Feb. 8, Feb. 22-24, Mar. 17-29.
364 SUSQUEHANNA RIVER BASIN 

Tunkhannock Creek at Dixon, Pa.

Location.--Lat 41°33'30", long 75°53'40", on left bank 20 ft downstream from abandoned 

highway bridge, 300 ft upstream from bridge on U. S. Highway 6 at Dixon, Wyoming County, 

3 miles northeast of Tunkhannoek, and 4 miles upstream from mouth.

Drainage area.--383 sq mi.

Records available.--October 1918 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. January 1914 to September 1918 (gage heights and discharge measurements only) and October 1918 to September 1941 in reports of Pennsylvania 

Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 610.50 ft above mean sea level (Pennsylvania 

State highway benchmark). Prior to Aug. 10, 1938, chain gage at same site and datum

Average discharge.--38 years, 545 cfs.

Extremes.--Maximum discharge during year, 26,700 cfs Oct. 16 (gage height, 12.95 ft), from 

rating curve extended above 4,700 cfs as explained below; minimum, 38 cfs Aug. 27, 28 

(gage height, 1.55 ft).

1914-56: Maximum discharge, 32,200 cfs Apr. 5, 1947 (gage height, 13.96 ft), from 

rating curve extended above 5,200 cfs on basis of contracted-opening determination of 

peak flow; minimum, 9.0 cfs Aug. 12, 1930 (gage height, 0.73 ft).

Revisions.--The maximum discharge for the water year 1919 has been revised to 3,990 

cfs Apr. 12, 1919 (gage height, 5.9 ft), superseding figure published in WSP 501.

Remarks.--Records good except those for periods of ice effect, which are fair.

Revisions (water years).--WSP 756: Drainage area. WSP 1051: 1921(M), 1932, 1934-35(M) , 

1936, 1938(M), 1939-40, 1942-44, 1945(MJ. Revised figures of discharge, in cubic 

feet per second, for high-water periods in the water years 1920, 1933, and 1943 

(supplemental peaks only), superseding those published in WSP 501, 741, and 971, are 

given herewith:

1920 

Mar. 6............ 2,500

7...... ...... 1,900

8. ........... 1,500

9............ 1,300

10............ 1,500

11. 2,500

1933 

Aug. 24.......... 11,700

Sept.20.......... 612

Month

March 1920 ..............................

Calendar year 1920 .....................

August 1933. .............................

Calendar year 1933. ....................

Maximum

13,000

11,700

11,700

Minimum

52

45

29

Mean

766

830

585

Per square 

mile

2.00

2.17

1.53

Runoff In 

Inches

23 19

27.22

2.50

20.74

Revised peak discharge.--1942-45; Mar. 17 (5:30 p.m.) 7,540 cfs; May 21 (6:30 p.m.) 6,800 cfs. 

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

590

380

286

236

205

2,140

2,300

1,430

982

720

582

479

416

477

4,820

15.000

4,670

2,680

1,710

1,200

925

776

645

603

792

*596

498

440

410

3,850

4,090

54,928

1,772

4.63

5.33

Nov.

2,090

1,390

1,090

1,070

832

705

624

575

512

466

664

760

603

1,480

1,010

5,870

2,800

1,570

1,220

1,080

916

852

725

752

616

565

540

515

451

*402

50,685

1,023

2.67

2.97

Dec.

386

370

575

478

558

425

545

337

322

306

276

286

256

209

190

180

170

160

155

140

135

130

140

200

261

256

204

160

150

140

130

7,828

253

0.661

0.76

Jan.

120

115

130

148

*156

156

144

99

113

182

546

952

711

443

386

375

327

266

237

210

190

175

160

150

140

130

120

120

130

209 

420

7, 760

250

0.653

0.75

Feb.

256

232

204

160

190

180

323

*460

503

830

849

2,180

1,180

762

1,630

1,160

732

1,860

1,690

1,180

808

552

470

400

1,110

2,180

1,110

889

642

------

24,722

852

2.22

2.40

Mar.

577

1,060

1,480

1,700

1,150

3,560

4,690

7,220

4,620

2,720

2,020

1,630

*1,250

1,120

1,000

816

704

620

560

500

470

480

520

616

521

' 584

704

748

792

711 

785

45,928

1,482

3.87

4.46

Apr.

841

1,180

1,780

3,010

5,200

2,230

2,160

2,500

2,090

2,500

2,660

2,090

1,700

1,370

1,170

1,290

1,280

*990

840

732

648

690

903

1,170

889

1,000

1,030

856

1,010

1,010

44,619

1,487

3.88

4.33

May

770

704

961

725

669

603

970

718

603

622

596

565

610

540

484

437

408

509

503

454

392

343

317

291

281

228

340

375

*291

242

257

15,808

510

1.53

1.53

June

1,520

1,260

2 , 480

1,360

1,010

808

652

535

454

439

592

393

326

285

243

253

363

209

174

152

145

159

148

170

152

122

122

152

118

112

14,908

437

1 . ^0

1.45

July

98

95

95

85

310

342

238

193

148

122

*107

125

132

159

189

135

112

95

85

196

553

414

358

275

213

266

266

217

174

141 

122

6,060

195

0.509

0.59

Aug.

112

101

90

80

80

82

87

95

80

71

62

60

62

78

76

60

54

51

58

69

58

53

*49

45

44

40

39

39

56

78 

228

2,237

72.2

0.189

0.22

Sept.

280

174

125

98

82

76

87

85

69

60

56

56

54

53

56

351

537

480

280

1,180

651

405

424

1,710

727

480

358

315

300

256

9,865

329

0.859

0.96

Calendar year 1955: Max 15,000 Min 12 Mean 603 Cfsm 1.57 In. 21.35

Water year 1955-56: Max 15,000 Min 39 Mean 725 Cfsm 1.89 In. 25.75

Peak discharge (base. 5,700 cfs). --Oct. 16 (4:30 a.m.) 26,700 cfs (12.95 ft); Oct. 30 (9 p.m.)

6,630 cfs (7.21 ft); Nov. 16 (4 p.m.) 6,800 cfs (7.26 ft); Feb. 25 (9:30 p.m.) 6,060 cfs (6.92 ft);

Mar. 8 (8 p.m.) 10,000 cfs (8.61 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice De=. 15-24, Dec. 29 to Jan. 3, Jan. 20-29, Feb.

4-6, 23, 24, Mar. 18-23.
SUSQUEHANNA RIVER BASIN 365

Lackawanna River at Archbald, Pa.

Location.--Lat 41°30'15", long 75°32'35", on right bank in Arehbald, Lackawanna County, 

0.5 mile upstream from White Oak Run and Gilmartin Street Bridge.

Drainage area.-~108 sq mi.

Records available.--January 1940 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 889.33 ft above mean sea level, datum of 

1929.

Average discharge.--16 years, 207 cfs.

Extremes. Maximum discharge during year, 5,770 cfs Oct. 15 (gage height, 8.02 ft), from 

rating curve extended above 2,200 cfs as explained below; minimum, 24 cfs Aug. 27 (gage 

height, 1.32 ft); minimum daily, 31 cfs Sept. 10.

1940-56: Maximum discharge, 9,510 cfs May 22, 1942 (gage height, 10.58 ft), from 

rating curve extended above 2,200 cfs on basis of slope-area determination of peak flow; 

minimum, 3.0 cfs Oct. 9, 11, 1943; minimum daily, 17 cfs Oct. 12, 1941, Oct. 10, 1943.

Remarks.--Records good. Regulation at low flow by mine pumps above station.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, in cubic 

feet per second)

Oct. 16 to Apr. 5 Apr. 6 to Sept. 30

2.0 

2.5 

3.0 

4.0 

5.3

125

268

1,130

2,320

1.6 

2.0 

2.5 

3.0

137

269

4.0 

5.0 

6.7

1,130

2,010

4,010

1.4 

1.6

2.0 

2.5

130

269

Note. Same as preceding table above 2.5

ft.

Discharge, in cubic feet per second, waber year October 1955 to September 1956

Day

1

2

4

5

6

7

9

10

11

12

13

14

15

16

17

1 8

19

20

1

2

3

4

6

7

8

9

30

31

Total

Mean

Cfsm

Oct.

244

204

163

139

125

764

958

712

525

400

322

272

236

478

2,240

5,890

1,690

1,100

776

580

463

378

306

288

314

*263

231

215

209

798

1,080

20,363

657

6.08

7.01

(tov .

654

493

410

396

339

284

253

237

223

212

234

247

256

446

373

772

757

525

443

387

326

291

266

280

240

226

215

204

186

*174

10,349

345

3.19

3.56

Dec.

170

162

165

184

215

186

162

155

151

146

137

128

124

111

115

109

109

109

100

88

75

77

84

94

90

107

92

79

73

79

73

3,749

121

1.1E

1.29

Jan.

79

72

72

*73

72

72

70

58

60

81

128

19"§ 204

158

144

133

124

111

102

100

104

100

92

86

88

81

81

81

79

92

96

3,092

99.7

0.923

1.06

Feb.

88

92

86

77

88

86

100

*100

100

122

144

217

204

177

£15

217

192

223

226

209

189

165

160

146

382

525

433

365

291

5,619

194

1.80

1.93

Mar.

256

291

365

396

356

601

864

1,520

1,120

823

687

626

509

453

382

*318

295

280

266

250

237

229

229

229

209

215

204

192

194

192

189

12,777

412

3.81

4.40

Apr.

"247 202

397

942

1 , 500

1,330

1,330

1,100

803

724

750

738

724

603

569

706

*764

563

453

378

322

339

382

396

369

414

429

437

569

603

19,083

636

5.89

6.57

May

488

448

473

405

369

535

424

335

291

280

266

253

250

228

214

203

186

222

222

214

192

173

171

155

140

132

165

163

*140

130

195

7,862

254

2.35

2.71

June

757

698

955

656

483

378

302

253

225

249

247

197

178

155

138

132

123

105

103

94

94

96

94

86

79

68

73

75

73

_62

7,228

241

2.23

2.49

July

68

58

54

59

70

158

128

103

81

64

*60

59

62

70

73

60

56

54

53

59

73

103

105

81

79

99

101

82

77

58

56

2,343

75.6

0.700

0.81

Aug.

53

49

48

48

49

47

48

46

43

42

43

45

42

40

41

41

41

41

60

39

38

*38

39

40

38

41

55

39

49

41

M

1,373

44.3

0.410

0.47

Sept.

59

51

54

45

42

48

42

37

39

I!

32

32

33

33

35

51

128

162

105

248

214

145

184

'280 463

205

160

158

160

142

3,418

114

1.06

1.18

Calendar year 1955: Max 3,890 Mln 28 Mean 243 Cfsm 2.25 In. 30.59

Water year 1955-56; Max 3,890 Min 31 Mean 266 Cfsm 2.46 In. 33.48

Peak discharge (base, 2,100 cfs).--Oct. 15 (11 p.m.) 5,770 cfs (8.02 ft). 

* Discharge measurement made on this day.
366 SUSQUEHANNA RIVER BASIN

Lackawanna River at Old Forge, Pa.

Location.--Lat 41°21'30", long 75°44'40", on right bank 150 ft upstream from Delaware, 

Lackawanna and Western Railroad bridge in Old Forge, Lackawanna County, and 0.5 mile 

upstream from St. Johns Creek.

Drainage area.--332 sq mi.

Records available. October 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 595.26 ft above mean sea level, datum of

Average discharge. 18 years, 574 cfs.

Extremes. Maximum discharge during year, 10,800 cfs Oct. 16 (gage height, 9.53 ft), from 

rating curve extended above 5,000 cfs as explained below; minimum, 104 cfs Aug. 27 

(gage height, 1.82 ft).

1938-56: Maximum discharge, 31,000 cfs Aug. 19, 1955 (gage height, 20.05 ft, from 

floodmark), from rating curve extended above 5,000 cfs on basis of slope-area determination of peak flow; minimum, 68 cfs Oct. 25, 1954, July 31, 1955 (gage height, 1.75 ft).

Revisions. Figures of maximum discharge for the water years 1939-40 have been 

revised to 7,320 cfs Feb. 15, 1939 (gage height, 7.89 ft) and 14,300 cfs Mar. 31, 1940 

(gage height, 11.86 ft), superseding those published in WSP 871 and 891, respectively.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Regulation at low flow by mine pumps above station. Records of chemical analyses and 

water temperatures for the water year 1956 are given in WSP 1450.

Revisions.--Revised figures of discharge, in cubic feet per second, for high-water periods 

in the water years 1940 and 1945, superseding those published in WSP 891 and 1031, are 

given herewith:

Mar. 30, 1940........... 5,040

Mar. 31, 1940........... 11,200

June 18, 1945........... 766

Month

Calendar year 1940 ..............

Calendar year 1945. .............

Cfs-days

212,763

319,550

MflTflmnm

11,200

5,000

Minimum

123

192

Mean

581

875

Per square 

mile

1.75

2.64

Runoff In 

Inches

23.83

35.80

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Mar. Mar. 9 to Sept. 30

2.0 

2.3 

2.6 

3.0

142

245

393

664

3.5 1,130

4.0 1,740

8.6 9,150

1.9 

2.2 

2.5

120

212

350

3.0 710

4.0 1,910

4.9 3,190

Discharge, In cubic feet per second, water year October 1955 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Cf sm

Oct.

512

472

393

328

314

942

1,510

1,380

1,120

862

664

567

472

780

4,830

9.080

5,460

3,560

2,460

1,800

1,450

1,150

950

843

930

*781

713 

641

713

2,070

2,420

50,167

1,618

4.87

5.62

Nov.

1,800

1,420

1,230

1,190

1,120

998

862

808

721

574

689

909

978

1,760

1,570

2,630

2.800

2,010

1,680

1,440

1,220

1,110

1,030

1,060

900

928

853 

689

505

*486

35,970

1,199

3.61

4.03

Dec.

472

460

505

505

505

450

400

380

370

360

350

330

304

280

280

263

323

309

254

237

222

222

249

299

267

249

237 

233

229

226

245

10,015

323

0.973

1.12

Jan.

226

203

199

*218

206

210

233

206

160

220

330

540

500

410

370

350

320

254

241

245

271

245

214

226

229

214

214 

258

233

276

276

8,297

268

0.807

0.93

Feb.

237

254

249

237

233

330

*429

338

294

338

393

626

546

472

626

689

588

1,170

1,050

834

680

518

486

429

1,120

1.600

1,120 

1,060

853

17,799

614

1.85

1.99

Mar.

755

755

978

1,050

928

1,310

1,940

3.070

2 860

2)l90

1,840

1,720

1,460

*1,350

1,190

975

898

790

720

692

665

620

638

750

647

620

638 

612

656

656

656

34,629

1,117

3.36

3.88

Apr.

629

821

1,070

2,400

3. 190

2,750

2,680

2,610

2,050

2,050

2,260

2,260

2,190

1,840

1,720

1,780

*1,840

1,490

1,250

1,030

953

975

1,090

1,170

1,080

1,170

1,220 

1,300

2,330

2,820

52,018

1,734

5.22

5.83

May

2.120

1,780

1,840

1,530

1,460

1,280

1,980

1,600

1,320

1,260

1,150

1,110

1,080

887

790

740

665

750

780

730

580

556

519

491

438

470

560 

512

»432

445

578

30,433

982

2.96

3.41

June

1,850

2,030

2.960

2,050

1,510

1,190

975

790

720

683

683

572

491

468

411

420

390

330

309

304

340

332

361

384

298

268

327 

281

262

Ffg

22,265

742

2.23

2.49

July

216

228

228

220

404

457

413

314

281

*238

253

224

220

396

345

245

228

201

205

293

376

281

328

285

551

528

570 

420

335

253

237

9,773

315

0.949

1.09

Aug.

216

190

190

200

210

200

212

195

183

189

232

190

171

194

192

176

171

208

214

154

176

*166

159

150

170

151

165

174

151

480

5,963

192

0.578

0.67

Sept.

304

208

216

160

173

216

216

194

167

151

165

157

154

151

183

205

205

324

262

422

407

330

287

1Z2

540

420

350 

340

361

314

8,354

278

0.837

0.94

Calendar year 1955: Max 14,000 Mln 81 Mean 664 Cfsm 2.00 In. 27.16

Water year 1955-56: Max 9,000 Mln 134 Mean 781 Cfsm 2.35 In. 32.00

Peak discharge (base. 4.200 cfs). Oct. 16 (1:30 a.m.) 10,800 cfs (9.53 ft). 

* Discharge measurement made on this day.

Note.--No gage-height record Oct. 17-25, Dec. 6-12, Jan. 9-17, Aug. 3-6; discharge estimated 

basis of weather records and records for nearby stations.
SUSQUEHANNA RIVER BASIN 367

Susquehanna River at Wilkes-Barre, Pa.

Location. Lat 41°15'00", long 75°52'55", on left bank at foot of West Union Street,

Wilkes-Barre, Luzeme County, 800 ft downstream from North Street Bridge and 1.6 miles 

upstream from Toby Creek.

Drainage area. 9,960 sq mi, approximately.

Records available. March 1899 to December 1913, October 1918 to September 1921, and October 1931 to September 1956 in reports of Geological Survey. March 1899 to September 

1941 in reports of Pennsylvania Department of Forest and Waters. Gage-height records 

collected at same site since November 1890 are contained in reports of U. S. Weather 

Bureau.

Gage. Water-stage recorder. Datum of gage is 512.07 ft above mean sea level, datum of 

1929. Prior to Dec. 18, 1927, staff or chain gages 1,300 ft downstream at Market 

Street Bridge; Jan. 17, 1928, to Oct. 30, 1929, chain gage 800 ft upstream at North 

Street Bridge; Oct. 31, 1929, to Oct. 15, 1943, water-stage recorder at Market Street 

Bridge; and Oct. 16, 1943, to Mar. 23, 1949, wire-weight gage at North Street Bridge; 

all gages at same datum.

Average discharge.--57 years (1899-1956), 13,510 cfs.

Extremes.--Maximum discharge during year, 186,000 cfs Mar. 9 (gage height, 28.17 ft); minimum, 1,710 cfs Aug. 26 (gage height, 1.12 ft).

1890-1956: Maximum discharge, 232,000 cfs Mar. 20, 1936 (gage height, 33.07 ft); 

minimum, 617 cfs Sept. 18, 1939; minimum gage height, 0.28 ft Sept. 3,4, Oct. 4, 1953.

Maximum stage known, 33.1 ft Mar. 18, 1865, from floodmarks (discharge, about 

232,000 cfs).

Revisions. Maximum discharges for the water years 1901, 1903-5, 1909, and 1913 are 

contained in the following table; also maximum discharge for water year 1937, which 

has been revised, superseding figure published in WSP 821.

Water 

year

1901 

1903 

1904 

1905 

1909 

1913 

1937

Date

Nov. 

Mar. 

Mar. 

Mar. 

May 

Mar. 

Jan.

28, 1900 

25, 1903 

27, 1904 

26, 1905 

2, '1909 

28, 1913 

23, 1937

Discharge 

(cfs)

*115,000 

*119,000 

t!24,000 

t!29,000 

$125,000 

$184,000 

77,300

Gage height 

(feet)

g22.0 

g22.4 

g22.9 

g23.4 

g23.0 

g28.5 

17.15

Not previously published, 

g From graph based on gage readings.

Remarks. Records good except those for periods of ice effect, which are fair. Records 

of chemical analyses and water temperatures for the water year 1956 are given in 

WSP 1450.

Revisions (water years).--WSP 109:

1902(M).Revised figures of discharge, in cubic feet per second, for the water years

1900-1905. WSP 351: Drainage area. WSP 781:

1901-5, 1907, 1909, and 1913, superseding those published in WSP 109, 126, 167, 241, 

261, and 351, are given herewith:

Date

190O

Dec. 15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

1901

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Discharge

9,200

8,300

7,000

6,000

5,700

5,3OO

6,000

6,800

6,000

6,400

6,8OO

6,000

8,000

8,8OO

7,8OO

7,000

6, TOO

6,200

5,800

5,200

4,800

4,500

4,OOO

3,500

3,700

4,000

4,400

4,900

5,300

5,800

7,000

12,000

11,000

10,000

Date

1901-Con.

Jan. 18

19

20

21

22

23

24

25

2B

27

28

29

30

31

Feb. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

Discharge

9,OOO

8,OOO

,OOO

,OOO

,30O

,200

,200

,OOO

,900

,-900

,000

,200

,300

,400

,300

,500

,600

,800

,800

,800

,800

,700

,600

,500

,300

,2OO

,100

,OOO

,900

,8OO

,800

,70O

,600

,5OO

3,4OO

3,200

Date

1901-Con.

Feb. 23

24

25

26

27

28

Mar. 1

2

3

4

5

6

7

8

Dec. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

22

23

24

25

26

27

28

29

Discharge

3,100

3,OOO

2,900

2,800

2,700

2,600

2,600

2,600

2,60O

2,900

3,20O

37500

4,500

7,000

6,600

6,200

6,200

6,70O

5,600

5,800

4,700

4,600

6,000

14,OOO

24,000

22,000

21,000

20,OOO

14,000

12,000

11,000

10,000

11,000

10,500

11,000

11,000

Date

19Ol-Con.

Dec. 30

31

1902

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

30

31

Feb. 1

2

3

Discharge

21,OOO

19,000

16,OOO

15,OOO

12,000

8,80O

8,000

8,OOO

8,OOO

7,000

7,80O

7,400

7,000

6.20O

5,600

5,200

5,200

5,200

5,000

4,200

4,800

5,800

10,000

18,000

33,000

21,000

20.OOO

19,OOO

18,000

15,000

13,000

10,000

11,OOO

9,6OO

Date

1902-Con.

Feb. 4

5

6

7

8

9

10 

11

12

13 

14

15

16

17

18

19

20 

21

22

23 

24

25

26

Mar. 1

2

3

Dec. 10

11

12

13

14

15

16

17

1903

Jan. 1

Discharge

8,OOO

5,8OO

5,000

4,800

4,600

4,4OO

4,20O

4,100

3, 9OO

3,8OO

3,7OO

3,700

3,600

z',40O

3,400

3,400 

3,400

3,300

3, 2OO 

3,200

4,300

10,000

193,000

206,000

198,000

7,6OO

7,40O

7.8OO

8,500

10,000

13,OOO

20,000

35,OOO

12,000
368 SUSQUEHANNA RIVER BASIN

Susquehanna River at Wilkes-Barre, Pa.--Continued 

Revised figures of discharge, in cubic feet per second, 1901-5, 1907, 1909, 1915 Continued

Date

1903-Con.

Jan. 2

3

4

5

6

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Nov. 29

30

Dec. 1

2

3

4

5

6

13

14

15

16

17

18

19

20

21

22

Discharge

12,000

13,000

17,000

20,000

25,000

1 1 , 000

9,200

7,800

6,800

5,600

5,600

7,000

8,000

8,800

8,800

8,800

8,800

9,600

12,000

12,000

11,500

11,000

9,600

9,600

10,000

13,000

8,400

7,700

7,100

6,600

6,200

5,800

5,300

5,000

3,400

3,200

3,100

2,900

3,100

5,200

9,000

14,000

16,000

15,000

Date

1903-Con.

Dec. 23

24

25

26

27

28

29

30

31

1904

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Feb. 1

2

Discharge

13,500

12,000

11,000

9,500

8,500

7,500

6,600

6,000

5,600

5,300

5,000

4,700

4,500

4,300

4,300

4,200

4,400

4,700

5,000

5,400

6,000

6,800

7,600

7,800

7,200

6,600

6,000

5,400

5,100

5,100

10,000

42,300

79,600

46,200

37,000

29,600

24,300

20,360

17,000

15,000

13,000

11,500

Date

1904-Con.

Feb. 3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

1905

Mar. 26

1906

Dec. 13

14

15

16

17

23

24

25

26

27

28

Discharge

10,000

9,000

7,800

6,800

10,000

16,000

38,000

35,000

30,000

25,000

22,000

20,000

18,000

16,000

14,000

12 , 000

10,000

9,200

9,200

13,000

16,000

18,000

16,000

14,000

13,000

12,000

11,500

128,000

11,500

11,500

11,500

11,000

17,000

9,000

7,800

6,800

6,000

5,600

5,300

Date

1906-Con.

Dec. 29

30

31

1908

Oct. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Nov. 1

z

3

4

5

6

7

8

Discharge

5,200

6,200

7,600

970

970

970

970

970

970

970

970

860

860

860

970

970

1,090

970

970

970

970

970

970

970

860

860

860

860

860

,360

,360

,660

,000

,000

,660

,360

,360

,360

,360

,510

,510

,510

Date

1908-Con.

Nov. 9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

1913

Feb. 6

7

8

9

10

11

12

13

14

15

16

17

18

Mar. 27

28

29

30

Discharge

1,360

1,360

1,220

1,220

1,360

1,360

1,360

1,510

1,660

1,660

1,660

1,510

1,510

1,510

1,510

1,510

1,510

1,510

1,660

1,660

1,510

1,510

8,600

7,600

6,800

6,400

6,200

6,100

6,000

5,900

5,800

5,800

5,600

5,400

5,200

155,000

178,000

160,000

106,000

Month

Calendar year 1900. ...................

Water year 1900-1901 ..................

Calendar year 1901 ....................

Calendar year 1902 ....................

Calendar year 1903 ....................

Calendar year 1904. ...................

Calendar year 1905. ...................

Water year 1906-7. ....................

Water year 1908-9. ....................

Calendar year 1913 ....................

Maximum

102,200

108,400

166,300

206,000

106,900

123,400

128,000

65,500

118,000

^ 78, 000

Minimum

720

720

1,810

2,000

1,810

2,200

2,620

970

860

820

Mean

11,370

13,317

14,075

17,368

18,067

14,881

13,782

11,100

11,900

11,700

Per square

mile

1.14

.555

1.34

1.41

1.74

1.81

1.41

1.49

1.38

1.11

1.19

1.17

Runoff In 

Inches

15.50

.64

18.16

19.18

1.33

23.67

.81

24.61

1.63

20.33

18.79

15.16

16.18

16.01

t Partly estimated.
SUSQUEHANNA RIVER BASIN 

Susquehanna River at Wilkes-Barre, Pa.--Continued

369

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Mar. 10 to Sept. 30

1.1 1,710

1.5 2,190

2.0 2,930

3.0 4,990

6.0 14,700

Note. Same as preceding 

table above 6.0 ft.

feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct. '

5,130 

3,280

2,800

2,500

2.400

2,700

7,530

6,880

10,500

12,200

10,500

8,200

6,640

6,000

44, 500

151.000

*144,000

89,800

62,000

47,800

35,300

27,200

20,800

16,900

* 15, 700

15,700

16,500

15,300

13,500

16,800

42,200

860,260

27,750

2.79

5.21

&&62,200

35^300

27,800

23,000

21,000

19,000

16,800

14,700

13,200

12.800

13,200

13,200

15,500

20,500

30,100

57,400

60,600

41,300

32,300

26,800

23, 500

21,000

19,500

21,000

20,000

17,200

15,500

*14,300

13,200

767,400

25,580

2.57

2.87

Decs/'

11,800 

11,100

10,400

10,400

11,100

19,000

22.000

18,600

15,500

13,600

12,500

11,000

10,000

9,000

8,600

8,200

7,200

6,600

6,000

5,000

4,500

4,000

5,400

3,500

4,500

6,000

8,600

8,400

7,000

6,200

5,700

289,400

9,335

0.937

1.08

Jan.

5,300

5,000

5,000

5,200

*5,300

5,400

5,400

5,000

4,500

4.000

4,800

8,320

14,000

15,900

14,300

13,200

11,400

10,400

8,750

7,800

7,180

6,580

6,290

6,440

5,580

5,170

4,780

4,600

4,700

5,000

6,000

221,290

7,138

0.717

0.83

Feb.

5,860 

5,720

5,580

5,040

5,040

4.540

*5,440

6,140

8,430

9,730

11,800

15,500

17,600

18,100

15,500

17,200

16,800

16,800

22,500

24,000

21,000

15,900

12,500

10,100

10,900

20,800

41,900

31,200

24,600

_ _ _____

426,220

14,700

1.48

1.59

Mar.

19,000 

17,200

23,500

35,900

38,900

42,400

82,800

135,000

179,000

139,000

85,200

68,800

*64,200

52,500

46,100

40,100

33,500

27,300

24,600

22,500

20,500

19,000

18,100

18,100

18,100

17,200

16,800

17,600

18,100

17,200

17,600

«.,375.8

44,380

4.46

5.14

Apr.

17. 600

28^400

60,800

105,000

122-000

107,000

110,000

106,000

84, 500

76,800

68,100

60,300

55,800

51,200

48,000

52 , 500

*59,600

55,800

48,600

40, 100

34, 100

31,700

34,100

34,100

30,600

27,800

26,200

26,800

31,700

*1,656.2

55,210

5.54

6.18

May

55.900 

35,300

32 , 300

29,000

25,600

22,500

23,000

23,000

20,500

17,200

15,900

15,500

18,600

23,500

22,000

17,600

15,500

15,900

15,500

14,700

13,200

12,100

11,100

10,100

9,420

9,100

8,780

8,470

7,850

*7,850

7.550

544,520

17,570

1.76

2.03

June

10,400 

11,800

18,100

17,600

16,800

15,100

12,500

10,700

9,420

8,470

7,850

7,250

6,950

6,520

6,220

6,220

6,370

6,080

5,660

4,990

4,500

4,160

4,050

4,050

4,050

4,050

4,050

3,740

3,450

5,270

234,370

7,812

0.784

0.88

July

3,100 

3,100

2,930

2,770

3,100

5,840

4,650

5,800

5,520

*4, 740

4,620

4,740

4,580

4,380

4,380

4,500

4,380

4,050

3,640

3,540

4,700

7,850

11,100

12,100

12,500

10,700

9,740

8,780

7,100

5,800

4,860

177,390

5,722

0.574

0.66

Aug.

4.160 

3,740

3,450

3,180

3,020

2,930

2,930

2,850

2,770

3,020

2,850

2,690

2,690

2,610

2,390

2,320

2,190

2,260

2,260

2,190

*2,190

*2 , 000

1,880

1,880

1.760

1,760

1,760

1,940

2,060

2,120

4,140

79,990

2,580

0.259

0.30

Sept.

6,220 

5,940

6,950

6,660

5,520

4,620

4,380

4,050

3,360

3,100

2,850

2,610

2,460

2,320

2.260

2,260

3,620

6,140

9,100

9,420

9,100

8,160

8,160

10,900

10,400

15,200

12,500

9,740

7,850

6,520

190,370

6,346

0.637

0.71

Calendar year 1955: Max 151,000 Mln 720 Mean 14,080 Cfsm 1.41 In. 19.18

Water year 1955-56: Max 179,000 Mln 1,760 Mean 18,640 Cfsm 1.87 In. 25.48

Peak discharge (base. 82.000 cfs).--Oct. 16 (6:30 p.m.) 166,000 cfs (26.45 ft); Mar 

186,000 cfs (28.17 ft); Apr. 6 (9:30 a.m.) 126,000 cfs (22.50 ft). 

* Discharge measurement made on this day. 

t Expressed In thousands. 

Note.--Stage-discharge affected by Ice Dec. 12 to Jan. 11, Jan. 28-30.

9 (9 a.m.)
370 SUSQUEHANNA RIVER BASIN

Toby Creek at Luzerne, Pa.

Location. Lat 40°16'55", long 75°53 I 45", on right bank 150 ft upstream from bridge on

 U. S. Highway 309 in Luzerne, Luzerne County, 0.5 mile upstream from outlet works of 

flood basin, and 2.5 miles upstream from mouth.

Drainage area. 32.4 sq mi.

Records available. August 1941 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage fs 574.60 ft above mean 

sea level, datum of 1929. -"**

Average discharge.--15 years, 48.0 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 695 cfs Oct. 15 (gage height, 2.56 ft); minimum, 

3.1 cfs Jan. 8, Aug. 24, 28 (gage height, 0.33 ft).

1941-56: Maximum discharge not determined, occurred Dec. 30, 1942; minimum, 0.1 cfs 

Sept. 12, 1944; minimum daily, 0.5 cfs Sept. 20, Oct. 8, 1946.

Remarks.--Records good except those for periods of ice effect, which are fair. Some regu-

 TaTTon by Huntsville Reservoir, 5.9 miles above gage (usable capacity, 256,900,000 

cu ft). Diversion from reservoir for municipal supply.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Jan. 30 Jan. 30 to Sept. 30

0.4 

.5 

.7

1.0

5.8 

9.2

46

1.3 

1.6 

2.1

94

178

408

0.3 

.4 

.6

3.4 

5.8

28

1.0 

1.3 

1.5 

1.9

48

96

146

304

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

21

28

29

30

31

Tbtal

Mean

(t)

Oct.

14

11

8.7

8.2

7.7

42

38

35

28

21

19

18

16

30

304

403

252

145

112

88

72

61

50

47

*50

43

37

32

31 

157

192

2,372.6

76.5

4.92

Nov.

115

90

81

79

62

49

43

40

37

35

54

61

54

105

79

295

257

154

123

103

86

73

65

64

52

50

44

41

*33 

29

2,453

81.8

5.12

Dec.

26

27

30

32

27

24

21

20

19

18

18

15

15

14

14

13

13

17

14

12

11

10

10

11

16

14

13

12

11 

11

10

518

16.7

5.43

Jan.

9.5

9.0

*12

15

12

12

11

10

12

20

26

23

18

15

15

12

11

10

9.5

9.0

9.0

10

9.5

9.0

8.5

8.2

8.0

8.0

10

38

23

412.2

13.3

5.76

Feb.

16

12

11

10

11

18

*58

64

63

74

98

211

66

46

104

59

41

273

113

92

69

52

42

33

213

144

83

77

60

2,213

76.3

5.45

Mar.

50

107

82

75

66

74

*90

171

133

98

85

74

*63

72

71

55

51

46

44

45

43

44

46

53

46

51

65

67

67

^**

69

2,172

70.1

5.25

Apr.

80

85

96

124

108

81

106

141

147

174

172

138

117

94

83

100

*83

63

51

48

42

BT

79

71

56

61

54

54

140 

228

2,927

97.6

4.75

May

124

115

133

98

83

78

175

101

77

71

60

58

64

53

41

42

35

42

35

32

25

22

22

26

15

14

18

19

14

*13

13

1,716

55.4

4.34

June

30

41

65

37

28

22

17

14

13

13

11

8.4

3.4

10

8.8

7.7

8.4

7.0

6^0

6.9

14

9.7

37

50

16

12

20

12

8.9

7.1

549.3

18.3

5.21

July

9.0

6.8

7.7

3.6

31

22

14

11

11

*9.0

9.9

9.2

12

39

15

9.1

7.6

6.2

5.4

17

43

2T

23

16

13

11

22

14

12

n c 3.5

453.0

14.6

3.32

Aug.

8.0

7.1

6.4

5.9

9.4

18

15

8.2

6.6

11

15

14

20

21

13

14

6.6

6.0

9.0

*7.9

9.0

7.2

6.8

6.7

6.0

8.1

5^1

5.8

11

7.6

58

333.5

10.8

4.43

Sept.

28

14

9.4

7.0

5.7

19

16

10

7.9

6.0

6.4

5.4

4.3

4.4

F^

12

11

11

3.3

J59

17

11

10

16

11

8.8

8.2

15

12 

10

350.3

3.1.7

4.12

Adjusted for diversion

Mean 

Cfsm 

In.

81.4 

2.51 

2.89

86.! 

2.6£ 

2.9S

) 22.1 

0.682 

) 0.79

19.1 

0.590 

0.68

81.8 

2.52 

2.72

75.4 

2.33 

2.69

102 

3.15

3.51

59.7 

1.84 

2.12

Observed

Calendar year 1955: 

Water year 1955-56:

Max 464 Min 2.2 Mean 59.5 

Max 403 Min 4.4 Mean 45.0

25.5 

0.725 

0.81

18.4 

0.568 

0.65

15.2 

0.469 

0.54

Adjusted

15.8 

0.488 

0.54

Mean 44.6 Cfsm 1.38 In. 18.67 

Mean 49.9 Cfsm 1.54 In. 20.93

Peak discharge (base. 650 cfs). Oct. 15 (2 p.m.) 695 cfs (2.56 ft); Feb. 25 (5:30 p.m.) 634 cfs 

(2.47 ft).

* Discharge measurement made on this day.

t Diversion, in cubic feet per second, for municipal supply; furnished by Scranton-Spring Brook 

Water Service Co.

Note. Stage-discharge relation affected by ice Dec. 9 to Jan. 10, Jan. 17-30, Feb. 1-6, 25, 24.
SUSQUEHANNA RIVER BASIN 371

Solomon Creek at Wilkes-Barre, Pa.

Location. Lat 41"13 I 40", long 75°54 I 15", on right bank 20 ft downstream from bridge of 

Central Railroad of Pennsylvania at southwest city limits of Wilkes-Barre, Luzerne 

County, 0.4 mile downstream from Spring Run, and 3.4 miles upstream from mouth.

Drainage area.--15.7 sq mi.

Records available. March 1940 to September 1956.

Gage.--Water-stage recorder and broad-crested weir. Datum of gage is 548.31 ft above mean 

sea level, datum of 1929.

Average discharge. 16 years, 24.7 cfs.

Extremes.--Maximum discharge during year, 1,040 cfs Oct. 15, Sept. 6, from rating curve 

extended above 350 cfs as explained below; maximum gage height, 4.40 ft Oct. 15; minimum discharge, 3.0 cfs Jan. 2, Aug. 3 (gage height, 1.47 ft); minimum daily, 5.2 cfs 

Jan. 2.

1940-56: Maximum discharge, 2,450 cfs Aug. 18, 1955 (gage height, 9.83 ft), from 

rating curve extended above 350 cfs on basis of computation of peak flow through 

culvert; minimum, 0.6 cfs Aug. 16, 25, 1940, Sept. 22, 24, 1951; minimum gage height, 

0.14 ft Aug. 16, 25, 1940; minimum daily discharge, 1.8 cfs July 17, 1953.

Maximum stage known, 11.4 ft Sept. 16, 1933, from floodmark.

Remarks. Records good except those for periods of no gage-height record, which are fair.

Revisions (water years).--WSP 1272: Drainage area. WSP 1382: 1940, 1942, 1944(M), 1945- 

47, 1949(M), 1951-52, 1953-54(«).

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 31 to Sept. 30

1.8

2.0

2.2

2.4 57

8.2

16

2.6

2.7 

3.0 

3.5

103

140

325

630

1.5 3.5

1.7 8.9

1.9 17.5

2.2 36

2.4 55

2.7 

3.1

100

140

390

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cfsm

In.

Oct.

12.5

12

10.5

10

To. 5

22

22

26

25

22

22

18.5

18

36

529

625

332

140

82

51

4O

33

29

27

*24

19.5

18.5

17

18.5

315

280

2,847.5

91.9

5.85

6.75

Nov.

120

68

53

44

35

33

29

27

24

24

29

30

28

40

35

284

202

91

64

51

42

36

32

32

31

29

28

27

*19

11

1,604

53.5

3.41

3.80

Dec.

17

T5

15

15

14

13

12.5

12.5

12

11.5

11.5

11

10

9.4

9.0

8.6

9.0

10

9.0

7.9

7.6

7.4

7.5

9.2

11

10

7.0

S75- 5.6

6.8

7.5

318.5

10.3

0.656

0.75

Jan.

8.2

5.2

670

8.0

*7.2

6.5

7.0

8.Z

6.8

9.7

9.4

9.8

9.5

8.0

10

6.7

7.6

6.6

7.6

9.5

7.0

7.7

7.4

7.8

6.5

6.3

5.9

7.0

7.6

11.5 

T7S

239.7

7.73

0.492

0.57

Feb.

7.9

7.3

776

8.3

10.5

17.5

*22

16.5

17

19

21

25

24

23

32

35

32

~5T 115

44

38

30

28

24

44

38

32

36

30

-- - -r

838.6

28.9

1.84

1.99

Mar.

27

32

37

38

35

36

*38

57

72

58

45

36

30

32

*30

28

26

25

21

19.5

18.5

T9T5

22

30

28

25

25

25

26

27

27

995.5

32.1

2.04

2.36

Apr.

26

26

37

46

42

38

41

44

44

45

57

69

64

51

45

42

37

*34

30

27

22IB25

26

26

30

26

39

208

217

1,489

49.6

3.16

3.53

May

95

81

*64

54

46

86

~80 217

60

50

42

40

41

36

32

32

29

30

27

25

24

22

21

21

19.5

19.5

22

20

19

*14

12

1,381.0

44.5

2.83

3.27

June

26

32

62

44

35

31

28

23

23

22

18

17

13

13

12

11

11

12

9.4

9.0

16.5

11

38

27

14.5

12

24

16

15

15.5

640.9

21.4

1.36

1.52

July

16

15.5

15.5

18

24

21

16.5

14.5

25

*17

20

22

23

 n30

19.5

16

13.5

15.5

18.5

21

16.5

13.5

12.5

12.5

13

12.5

13

12.5

10

9^0

529.0

17.1

1.09

1.25

Aug.

9.6

9.0

8.6

10

11.5

16.5

11.5

10.5

8.8

8.1

11

14

12,5

6.5

18

9.1

6.4

9T3

7.0

8.9

*8.1

7.8

8.6

6.4

9.6

9.2

8.3

7.3

9.0

9.2

15

305.3

9.85

0.627

0.72

Sept.

14

11

10

11

7.8

369

154

57

42

33

30

25

23

22

23

23

20

17

16.5

23

19

20

19.5

25

17.5

17.5

16.5

23

22

21

1,132.3

37.7

2.40

2.68

Calendar year 1955: Max 890 Min 3.0 Mean 30.9 Cfsm 1.97 In. 26.68

Water year 1955-56: Max 625 Min 5.2 Mean 33.7 Cfsm 2.15 In. 29.19

Peak discharge (base, 520 cfs).--Oct. 15 (7 p.m.) 1,040 cfs (4.40 ft); Oct. 30 (6:30 p.m.) 630 cfs 

(3.52 ft); Nov. 16 (12 m.) 655 cfs (3.53 ft); Apr. 29 (7 p.m.) 780 cfs (3.82 ft); Bay 7 (1 a.m.) 630 

cfs (3.50 ft); June 23 (9:30 p.m.) 486 cfs (3.26 ft); Aug. 15 (4:30 p.m.) 332 cfs (3.01 ft); Sept. 6 

(3 p.m.) 1,040 cfs (4.38 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Dec. 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, Jan. 3, 

4; discharge estimated on basis of weather records and records for nearby stations.
372 SUSQUEHAfflA RIVER BASIN

Wapwallopen Creek near Wapwallopen, Pa.

Location.--Lat 41°03'35", long 76°05>40", on left bank 100 ft upstream from Harts Bridge, 

at miles southeast of Wapwallopen, Luzerne County, and 3.7 miles upstream from mouth.

Drainage area.--43.8 sq mi (revised).

Records available.--October 1919 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. October 1919 to September 1941 in reports of Pennsylvania 

Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 752.41 ft above mean sea level (Pennsylvania 

Railroad benchmark). Prior to Mar. 15, 1930, chain gage at same site and datum.

Average discharge.--36 years (1920-56), 64.0 cfs.

Extremes. Maximum discharge during year, 1,400 cfs Oct. 15 (gage height, 6.32 ft); minimum daily, 12 cfs Aug. 27, 28; minimum gage height, 0.82 ft Aug. 26, 27, 28, Sept. 6. 

1919-56: Maximum discharge, 3,140 cfs Aug. 18, 1955 (gage height, 9.23 ft), from 

rating curve extended above 1,300 efs ; minimum, 1.1 cfs Aug. 4, 1955 (gage height, 

0.44 ft); minimum daily, 1.5 cfs Aug. 31, 1953, Aug. 5, 1955.

Remarks.--Records good except those for periods of ice effect, which are fair. Some regulation at low flow by gristmills above station.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

0.8 

1.1 

1.5 

2.0

3.0 

4.0 

5.1

338

575

906

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

n

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sin

In.

Oct.

33

24

20

18

18

94

164

124

98

79

67

58

51

162

874

902

682

422

294

223

177

143

119

*112

120

103

80

72

67

448

428

6,276

202

4.61

5.33

Nov.

267

207

189

169

138

115

104

98

87

86

189

147

124

131

129

416

389

267

225

191

163

139

127

115

97

90

82

*77

64

62

4,684

156

3.56

3.98

Dec.

56

54

53

54

53

47

41

40

40

39

37

36

35

33

32

31

30

29

28

26

24

22

22

25

32

30

28

26

25

24

23

1,075

34.7

0.792

0.91

Jan.

22

21

23

25

23

*21

20

19

20

50

111

111

78

60

52

45

40

36

34

32

30

28

26

24

22

20

19

18

19

30

60

1,139

36.7

0.838

0.97

Feb.

45

38

33

3133"

*40

170

182

171

167

119

181

119

97

111

109

86

251

194

152

126

111

107

87

148

159

106

126

107

3,406

117

2.67

2.89

Mar.

98

126

145

132

117

122

127

228

209

165

148

*134

119

122

122

103

100

85

75

70

64

62

75

119

97

95

103

98

95

94

3,544

114

2.60

3.01

Apr.

86

94

97

109

112

104

124

154

156

195

231

235

211

177

167

162

138

119

»104

93

84

91

117

114

91

114

101

95

150

236

4,061

135

3.08

3.45

May

167

170

203

152

134

122

273

177

148

136

120

112

138

114

94

87

77

77

72

64

55

50

49

46

41

40

55

*64

46

40

40

3,163

102

2.33

2.69

June

143

169

254

177

145

122

101

86

77

69

61

50

45

40

3J3

69

116

58

42

36

41

45

39

165

66

46

166

106

68

52

2,690

89.7

2.05

2.28

July

43

43

55

42

.si

70

52

40

*52

50

39

65

53

46

41

34

31

28

53

69

79

58

43

46

43

42

42

41

39

51

28

1,484

47.9

1.09

1.26

Aug.

26

24

21

20

23

34

38

42

27

24

20

18

20

24

26

37

26

21

19

18

27

25

*18

18

16

13

12

12

16

18

701

22.6

0.516

0.60

Sept.

40

24

18

15

14

241

236

83

56

45

37

34

30

27

28

36

36

36

28

61

39

31

29

43

35

30

26

41

40

33

1,472

49.1

1.12

1.25

Calendar year 1955: Max 1,170 Min 1.5 Mean 73.4 Cfsm 1.68 In. 22.74

Water year 1955-56: Max 902 Min 12 Mean 92.1 Cfsm 2.10 In. 28.62
SUSQUEHANNA RIVER BASIN 373

Fishing Creek near Bloomsburg, Pa.

Location.--Lat 41°04 I 40", long 76°25'55", on left bank 25 ft downstream from highway

bridge, 0.3 mile upstream from Deer-lick Run, 0.9 mile west of Orangeville, and 5.5 mileE 

northeast of Bloomsburg, Columbia County.

Drainage area. 274 sq mi.

Records available.--June 1938 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 540.68 ft above mean sea level (Reading Co. 

Benchmark).

Average discharge.--18 years, 477 cfs.

Extremes.--Maximum discharge during year, 7,540 cfs Oct. 16 (gage height, 8.33 ft); minimum daily, 67 cfs Jan. 28.

1938-56: Maximum discharge, 18,100 cfs Mar. 31, 1940 (gage height, 12.08 ft, from 

floodmark in gage well), from rating curve extended above 5,300 cfs on basis of 

contracted-opening determination of peak flow; minimum, 7.6 cfs July 19, 1939 (gage 

height, 1.71 ft); minimum daily, 16 cfs Sept. 18, 24, 1948, Sept. 3, 1953.

Flood of Mar. 18, 1936, reached a stage of 11.86 ft, from floodmarks (discharge, 

17,600 cfs).

Remarks.--Records good except those for periods of ice effect, which are fair. Some diurnal fluctuation at low flow caused by mill above station.

Revisions (water years).--WSP 1202: 1939-42, 1948(P), 1950.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, in aublc feet per second)

2.2 

2.5 

5.0 

5.5

167

590

680

4.0 

6.0 

7.7

1,120

3,540

6,530

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Cfsm

In.

Oct.

265

222

192

175

165

923

1,960

1,430

1,010

763

619

544

472

3,080

*4, 420

6,250

5,680

3,190

2,170

1,540

1,160

899 

695

*632

673

550

488

435

410

1,420 

2,290

44,720

1,443

5.27

6.07

Nov.

1,650

1,210

982

855

688

600

539

488

445

415

510

556

499

539

562

1,850

2,730

1,870

1,430

1,200

992

821 

702

695

606

556

516

*477

400

3J30

25,763

859

3.14

3.50

Dec.

356

337

333

337

337

310

283

274

261

248

213

200

180

170

160

150

150

160

150

140

130

120 

110

110

150

140

120

110

105

100 

95

6,039

195

0.712

0.82

Jan.

90

85

90

100

116

*116

110

100

95

172

256

235

201

163

147

135

131

119

97

90

85

90 

85

80

76

72

70

67

70

164

222

3,729

120

0.438

0.51

Feb.

139

127

110

95

105

*143

522

801

685

954

996

2,220

1,060

653

943

751

544

1,670

1,450

925

680

493 

420

350

1,040

1,290

718

725

575

21,184

730

2.66

2.88

Mar.

488

680

688

660

581

666

788

1,530

2,520

1,540

1,140

954

788

740

702

632

*581

516

482

430

405

435 

499

725

612

612

600

562

550

533

493

22,932

740

2.70

3.11

Apr.

451

4TT

488

798

1,320

,180

,460

,650

,380

,320

,210

,070

944

804

718

863

863

710

*612

533

477

500 

650

600

540

620

580

520

839

1 990

26,141

871

3.18

3.55

May

,430

,200

,540

,210

,040

863

,870

~T430

,130

954

763

695

846

718

600

587

544

522

493

440

395

361 

342

319

287

270

287

*361

274

248

243

22,262

718

2.62

3.02

June

333

352

488

450

371

342

305

274

252

248

230

196

175

163

159

167

155

131

116

108

168

155 

127

476

243

167

301

243

171

159

7,175

239

0.872

0.97

July

119

TZ3

180

163

448

415

324

261

* 283

226

196

226

196

655

461

347

292

243

213

397

1,560

1.600 

1,210

846

688

460

1,150

963

710

556 

456

15,967

515

1.88

2.17

Aug.

385

333

283

248

292

395

472

347

274

278

239

213

205

218

188

226

175

188

201

192

180

151 

*131

116

108

93

89

86

13T

116 

550

7,087

229

0.836

0.96

Sept.

571

355

314

248

213

336

533

556

287

245

218

250

261

256

265

528

576

347

252

390

342

292 

270

522

456

361

505

292

270

243

9,772

326

1.19

1.33

Calendar year 1955: Max 6,250 Mln 21 Mean 491 Cfsm 1.79 In. 24.35

Water year 1955-56: Max 6,250 Mln 67 Mean 581 Cfsm 2.12 In. 28.89

Peak discharge (base, 4.000 efs).--0et. 16 (2:30 a.m.) 7,540 cfs (8.33 ft). 

* Discharge measurement made on this day.

Note_.--Stage-discharge relation affected by ice Dec. 12 to Jan. 4, Jan. 7-9, 20-29, Feb. 3-5, 23, 

24.

505690 O - 59 -Z5
374 SUSQUEHANNA RIVER BASIN

Little Fishing Creek at Eyers Grove, Pa.

Location.--Lat 41°04'50", long 76°30'40", 15 ft upstream from bridge on State Highway 42,

 OTVmile southeast of Eyers Grove, Columbia County, 3 miles southeast of Millville, and 

5.1 miles upstream from mouth.

Drainage area.--56.5 sq mi.

Records available.--October 1940 to September 1956.

Gage.--water-stage recorder. Datum of gage is 558.48 ft above mean sea Level, datum of 

~T929.

Average discharge. 16 years, 83.9 cfs.

Extremes.--Maximum discharge during year, 2,470 cfs Oct. 14 (gage height, 6.53 ft); mini-

 mum, 3.4 cfs Aug. 28 (gage height, 0.90 ft).

1940-56; Maximum discharge, 3,100 cfs Mar. 11, 1952 (gage height, 7.34 ft), from 

rating curve extended above 2,000 cfs; minimum, 0.1 cfs Sept. 1, 1953 (gage height, 

0.94 ft).

Remarks. Records good except those for periods of ice effect, which are fair. Some regulation at low flow by mills above station.

Revisions (water years) . WSP 1001: 1943.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Ocb. 1 to Apr. 29 Apr. 30 to Sept. 30

1.15 5.9 2.0 172 1.0 7.4 1.5 66

1.2 9.2 3.0 480 1.1 13 2.0 185

1.3 20 4.0 900 1.2 20 2.8 412

1.5 53 4.8 1,320 1.3 30

Discharge, in cubic feet per- second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota:

Mean

Cfsm

Oct.

49

31

28

25

20

248

320

236

156

121

97

79

65

1,520

765

685

839

414

246

167

126

97

76

*79

88

61

49

42

44 

197

351

7,121

230

4.07

4.69

Nov.

268

188

151

124

97

83

72

61

53

51

81

88

70

83

95

552

575

77?

227

169

136

114

95

95

76

74

74

*72

57 

57

4,267

142

2.51

2.81

Dec.

48

42

43

44

39

32

26

25

23

22

12

19

12

13

12

11

11

13

12

11

10

9.0

¥^

10

18

15

13

11

10 9 5

g!o

593.5

19.1

0.338

0.39

Jan.

8.5

9.2

10

11

12

*13

12

11

10

17

40

31

25

21

18

16

15

14

13

12

11

12

11

10

9.0

8.5

8.5

8.0

?^

20

40

465.7

15.0

0.265

0.31

Feb.

30

23

19

1719"

*30

100

160

140

200

250

500

230

149

269

159

119

416

282

196

115

95

80

70

332

189

104

144

99

4,536

156

2.76

2.99

Mar.

95

141

121

141

107

119

141

583

414

230

162

*121

105

100

93

86

78

70

61

55

53

64

83

154

146

136

126

121

116

104

4,212

136

2.41

2.77

Apr.

70

70

83

104

102

90

164

244

244

295

256

196

151

116

102

114

90

79

*66

57

51

64

97

83

79

92

86

76

181 

404

3,906

130

2.30

2.57

May

264

234

242

224

180

152

286" 366

203

158

118

106

162

116

104

104

81

75

62

52

43

39

38

33

28

25

38

*62

36

31 

35

3,697

119

2.11

2.43

June

47

43

62

43

42

39

34

30

26

24

22

17

16

15

19

13

13

9.7

9.8

7.6

23

17

19

7022"

15

19

17

10 

8.7

752.8

25.1

0.444

0.50

July

TZ~ 8.4

34

20

84

53

35

24

*28

20

18

30

24

164

88

58

44

32

28

99

384

344

266

182

138

174

310

225

144 

100

73

3,343.4

105

1.86

2.13

Aug.

55

43

33

30

63

78

63

39

34

66

36

31

33

35

26

22

18

16

26

17

17

15

12

*12

9.0

10 8.8

8.9

15 

11

85

967.7

31.2

0.'552

0.64

Sept.

113

62

39

31

25_

130

161

106

71

52

42

37

30

28

32

52

49

43

33

76

52

55

54

82

56

45

39

40

36

31

1,702

56.7

1.00

1.12

Calendar year 1955: Max 1,320 Mln 0.2 Mean 76.9 Cfsm 1.36 In. 18.48

Water year 1955-56: Max 1,320 Min 7.6 Mean 96.9 Cfsm 1.72 In. 23.35

Peak discharge (base, 1,200 efs). Oct. 14 (11:30 a.m.) 2,470 ofs (6.53 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 14 to Feb. 12, Feb. 21-24.
SUSQUKHANNA RIVER BASIN 375

Susquehanna River at Danville, Pa.

Locatlon. Lat 40°57'30", long 76'37'10", on right bank 200 ft upstream from Mill Street 

Bridge at Danville, Montour County, and 0.8 mile upstream from Mahonlng Creek.

Drainage area. 11,220 sq ml, approximately.

Records available. March 1899 to December 1913, October 1918 to September 1921, and July 

1932 to September 1956 In reports of Geological Survey. March 1899 to December 1903 and 

March 1905 to September 1941 In reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage Is 431.29 ft above mean sea level, datum of 

1929. Prior to June 29, 1939, chain or wire-weight gage at or near Mill Street Bridge 

at same datum.

Average d Is charge. 53 years (1899-1900, 1901-3, 1905-31, 1932-56), 15,270 cfs.

Extremes.--Maximum discharge during year, 175,000 cfs Mar. 9 (gage height, 22.47 ft); minimum, 2,120 cfs Aug. 27, 28 (gage height, 2.39 ft).

1899-1956: Maximum discharge, 250,000 cfs Mar. 20, 1936; maximum gage height, 

30.7 ft Mar. 9, 1904, from floodmarks (Ice jam); minimum discharge, 690 cfs Sept. 29, 

1939 (gage height, 1.61 ft).

Maximum stage known prior to 1889, 28 ft Mar. 18, 1865.

Mote. Figures of maximum discharge not previously published, for some water years 

are given in the following table.

Water 

year

1900

1901

1902

1903

1905

1906

1908

1909

1910

1912

1913

Date

Mar. 2, 1900

Nov. 28, 1900

Mar. 3, 1902

Mar. 25, 1903

Mar. 26, 1905

Apr. 1, 1906

Feb. 17, 1908

May 2, 1909

Mar. 3, 1910

Apr. 3, 1912

Mar. 28, 1913

Discharge 

(cfs)

105,000

135,000

243,000

132 ,000

136,000

99,500

122,000

134,000

165,000

129,000

192 ,000

Gage height 

(feet)

g!5.9

g!8.5

g26.9

g!8.2

*18.62

g!5.4

g!7.4

g!8.4

g21.0

*17.97

*23.11

* Observed.

g From graph based on gage readings.

Remarks. Records excellent except those for period of ice effect, which are fair. Records of chemical analyses for the water year 1956 are given in WSP 1450.

Revisions. WSP 756: Drainage area. Revised figures of discharge, in cubic feet per

second, for the water years 1900-1903, 1905-6, 1908-10, 1912-13, 1933, superseding those 

published in WSP 109, 167, 203, 241, 261, 281, 321, 351, and 741, are given herein.

Date

1899

Dec. 31

1900

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

31

Feb. 1

2

3

4

5

6

7

8

Mar. 2

Nov. 28

Dec. 16

17

18

19

20

21

Discharge

15,000

14,000

14,OOO

15,OOO

16,OOO

17,OOO

17,000

17,000

16,000

15,000

14,000

12,000

12,000

11,OOO

12,000

11,000

11,000

10,OOO

10,000

9,OOO

10,000

25,000

20,000

17,OOO

14,000

15,OOO

25,000

24,000

23,000

21,000

97,300

113,000

11,000

9,OOO

8,000

7,OOO

6,OOO

6,8OO

Date

1900-Con.

Dec. 22

23

24

25

26

27

28

29

30

31

1901

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Discharge

7,600

6,800

7,200

7,600

7,000

8,900

10,000

9,000

8,500

8,000

7,600

6,800

6,200

5,600

5,200

4,800

4,OOO

4,200

4.5OO

5,000

5,400

5,800

6,400

6,8OO

9,000

13,OOO

12,000

11,OOO

10,OOO

8,500

6,000

5,000

5,OOO

4,800

4,600

4,400

4,400

4,500

Date

1901-Con.

Jan. 29

30

31

Feb. 1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Mar. 1

2

3

4

5

6

7

8

9

Discharge

4,600

4,700

4,800

4,8OO

4,9OO

5,000

5,200

5,400

5,400

5,400

5,400

5,200

5,100

5,000

4.8OO

4,700

4,6OO

4,500

4,400

4,300

4,200

4,100

4,000

3,800

3,700

3,60O

3,500

3,300

3,200

3,100

3,OOO

2,8OO

2,700

2,9OO

3,100

3,500

3,800

4,200

6,OOO

9,000

Date

1901-Con.

Mar. 10

11

28

29

Apr. 7

8

9

10

11

12

13

23

May 31

Dec. 16

17

1902

Jan. 4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

Feb. 3

4

5

6

Discharge

14,000

20,OOO

117,000

115,000

62 , 600

96,200

90,700

73,400

59,OOO

49,200

40,000

97,300

95,1OO

186,000

153,OOO

12,000

9,OOO

9,OOO

8,500

8,OOO

8,600

8,200

7,800

7,000

6,400

6,OOO

6,000

5,50O

5,000

5,000

5,500

7,OOO

20,000

25,000

11,000 

10,000

7,000

6,000
376 SUSQUEHANNA RIVER BASIN

Susquehanna River at Danville, Pa. Continued

Revised figures of discharge. In cubic feet per second, 19OO-1903, 

1905-6, 1908-10, 1912-15, 1955 Continued

Date

1902-Con.

Feb. 7

8

9

10

11

12

15

14

15

16

17

18

19

2O

21

22

25

24

25

26

27

Mar. 1

2

5

4

5

6

14

Discharge

5,400

5,000

5,000

5,OOO

4.8OO

4,600

4,500

4,400

4,500

4,200.

4,100

4,OOO

5,900

5,900

5,9OO

5,800

5,80O

5,700

6,OOO

15,000

25,000

162,000

209,000

232,000

180,000

132,000

89,600

108,000

Date

19O2-Con.

Mar. 15

18

19

1903

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

Discharge

1O2,OOO

113,000

102,000

15.OOO

15,000

15,500

18,000

22,000

27,000

22,000

21,OOO

17,000

13,000

11,000

10,000

8,OOO

7,000

7,OOO

7,500

8,500

9,000

9,400

9,400

9,400

10,000

12,500

Date

19O3-Con.

Jan. 24

25

26

27

28

29

30

Feb. 21

22

23

24

25

26

27

Mar. 1

2

24

25

1905

Mar. 26

27

28

29

Dec. 16

1908

Feb. 17

Discharge

12,500

12,000

11,500

11,000

10,500

10,500

14,000

30,000

36,OOO

38,000

40,000

4O,OOO

36,000

54,090

11O,OOO

124,000

104,000

129,000

136,000

129,000

117,000

106,000

12,000

117,000

Date

1908-Con.

Mar. 16

1909

May 2

3

1910

Mar. 2

3

4

5

Apr. 26

1912

Mar. 51

Apr. 3

4

1915

Mar. 27

28

29

50

1933

July 3

4

5

Discharge

115,000

126, OOO

116,000

144,OOO

160,000

154,000

127,000

112,000

123,000

123,000

121,000

108,000

187,000

176,000

144,000

7,450

7,000

6,580

Month

March. .............................

Calendar year 1900. ..............

March. .............................

Calendar year 1902. ..............

January 1905. ......................

Calendar year 1905. ..............

Water year 1904-5. ...............

Water year 1905-6. ...............

March..............................

Calendar year 1908 ...............

Calendar year 1909. ..............

Calendar year 1910. ..............

March 1912 ................... . . .

April..............................

March 1913. .......................

Calendar year 1913. ..............

July 1933. .........................

Maximum

113,000

13,000

186,000

39,900

232,000

98,500

129,600

136,000

87,300

117,000

126,000

112 000

160,000

123,000

187,000

114,000

Minimum

830

4,000

g 700

2,470

5,000

2,470

7,000

-

1,640

855

1,120

1,100

1,600

920

1,730

Mean

12,652

6,277

17,393

14,885

20,759

15,435

20,991

15,080

15,619

14,152

13,700

11,900

17,000

14,300

14,200

Per square 

mile

1.13

.559

3 O4

g 23

1/55

1.33

1.85

1.38

1.87

1.34

1.59

1.26

1.22

1.06

1.52

1.27

1.27

Runoff In 

Inches

2 84

15.30

.65

2 57

21.05

1.53

25.12

1.59

25.39

18.25

2 30

18.90

17.15

16.62

14.41

20.62

17.33

17.18
SUSQUEHANNA RIVER BASIN 377

Susquehanna River at Danville, Pa. Continued

Rating table, water year 1955-56, except period of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.4 

2.7 

3.0 

4.0

2,140

2,920

3,790

7,350

7.0

11.0

16.0

21.8

22,200

50,200

95,000

165,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

3,670

3,850

3,910

3,400

3.060

3,680

7,940

11,100

10,600

13,100

13,600

11,200

*9,060

15,000

26,400

123,000

*164.000

117,000

75,700

56,600

42,100

32,800

26,300 

21,200

18,900

17,900

18,100

18,100

16,200

17,200

35,600

940,270

30,330

2.70

3.12

Nov.

63,300

55,600

42,400

33 , 400

27,700

24,400

22,500

20,200

18,000

16,100

15,600

15,700

15,700

16,000

21,200

30,500

55,600

69,400

51,900

39,300

32,200

*28,000

25,000 

22,800

21,900

23,000

20,400

18,500

16,900

15.200

878,400

29,280

2.61

2.91

Dec.

14,000

12,600

11,800

11,400

11,200

13,700

22,100

21,400

18,000

15,400

13,800

12,000

10,500

9,700

9,200

9,100

8,000

7,400

6,700

5,400

5,000

4,600

4.000 

4,000

4,500

5,200

6,600

9,200

9,000

7,500

6,500

309,500

9,984

0.890

1.03

Jan.

6,200

5,500

5,700

5,600

6,100

6,130

6,170

6,550

5,160

5.020

5,550

5,870

10,300

15,300

16.000

14,200

12,800

11,400

10,300

8,780

8,560

7,110

6,670 

6,550

*6,870

5,980

5,510

5,340

5,440

5,580

6 ,280

238,520

7,694

0.686

0.79

Feb.

6,470

6,170

5,870

5,730

5,570

5,580

7,790

8,600

9,780

11,700

13,400

19,800

20,300

19,900

19,200

19,100

19,400

21,400

24,700

27,900

25,700

21,400

17,100 

13,600

12,200

18,700

36,100

36,200

29,700

488,860

16,860

1.50

1.62

Mar.

*23,300

20,600

21,800

31,600

39,000

37,600

63,900

111,000

163,000

158,000

104,000

75,600

67,400

57,500

49,400

43,400

37,800

31,400

27,200

24,900

23,300

21,600

20,500 

20,900

21,200

20,100

19,400

19,300

19,800

19,900

19,200

tl,413.6

45,600

4.06

4.69

Apr.

19,400

19,900

*24,500

42,000

87,800

116,000

114,000

109,000

113,000

96,600

83,200

75,300

65,800

59,400

55,200

50,900

50,700

58,000

59,400

53,500

45,200

38,400

34,200 

34,600

35,800

33,900

30,600

28,400

28,300

33,300

«.,696.3

56,540

5.04

5.62

Hay

37,200

38.700

38,400

34,600

30,800

26,900

28,000

28,100

26,100

22,700

19,900

18,500

19,400

*23,900

26,100

22,700

19,400

17,800

18,000

17,400

16,200

14,500

13,300 

12,200

11,200

10,300

10,000

10,100

9,500

8.740

'

639,470

20,630

1.84

2.12

June

9,500

13,000

17,000

22,300

20,200

18,600

16,400

13,900

11,900

10,800

9,820

9,010

8,200

7,710

7,270

6,950

6,990

7,190

6,750

6,210

5,580

5,370

4,920 

5,520

5,620

4,780

4,850

*5,230

4,490

4,100

280,160

9,339

0.832

0.93

July

3,790

3.670

4,100

4,140

5,730

5,370

5,440

5,950

7,270

6,710

5,800

5,620

5,690

5,660

5,980

5,400

5,340

5,090

4,680

4,490

5,540

8,340

10,700 

13,300

14.600

14,400

13,200

12,400

11,300

8 , 560

6, 910

225,170

7,264

0.647

0.75

Aug.

5.800

5,020

4,420

4,010

4,010

4,100

4,360

*4,010

3,700

3,550

3,610

3,430

3,340

3,430

3,320

3,230

2,950

2,780

2,780

2,780

2,780

2,760

2,520 

2,320

2,260

2,160

2,140

2,140

2,470

2 , 620

2,760

101,560

3,276

0.292

0.34

Sept.

6,110

7,030

6,950

7,310

6,950

6,170

7,670

6,280

5,090

4,290

3,820

3,610

3,340

3,170

3.120

3,140

3,340

 4,660

7,900

10,200

10,700

9,550

9,010 

9,820

12,800

12,200

14.800

12,800

10,300

8 ) 380

220,510

7,350

0.655

0.73

Calendar year 1955: Max 164,000 win 876 Mean 15,620 Cfsm 1.39 In. 18.92

Water year 1955-56: Max 164,000 Min 2,140 Mean 20,310 Cfsm 1.81 In. 24.65

* Discharge measurement made on this day.

* Expressed in thousands.

Note.-,-Stage-dlacharge relation affected by Ice Dec. 12 to Jan. 4.
378 SUSQUEHANNA RIVER BASIN

West Branch Susquehanna River at Bower, Pa.

Location.--Lat 40°53'50", long 78°40'40", on right bank on downstream side of highway

bridge at Bower, Clearfield County, 4.6 miles downstream from Chest Creek and Mahaffey.

Drainage area.--315 sq mi.

Records available. October 1918 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. October 1913 to September 1941 in reports of Pennsylvania 

Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 1,206.39 ft above mean sea level, adjustment of 1907. Prior to Oct. 17, 1929, chain gage at same site and datum.

Average discharge.--43 years (1913-56), 559 cfs.

Extremes. Maximum discharge during year, 9,720 cfs July 3 (gage height, 12.84 ft); minimum, 52 cfs Oct. 5 (gage height, 4.08 ft).

1913-56: Maximum discharge, 31,500 cfs Mar. 18, 1936 (gage height, 19.74 ft, from 

floodmark in gage shelter), from rating curve extended above 7,200 cfs on basis of 

slope-area determination of peak flow; minimum, 14 cfs Aug. 29, 1939; minimum daily, 

16 cfs Sept. 29, Oct. 1, 6, 13, 1930, Aug. 29, Aug. 31 to Sept. 2, 1939.

Maximum stage known prior to 1913, about 18.5 ft May 31, 1889 (discharge, about 

27,000 cfs).

Remarks. Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair. Occasional regulation at low flow by mills above station.

Revisions.--WSP 726: Drainage area.

Rating table, water year 1955-56, except period of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

4.0 42 6.0 675

4.2 66 7.0 1,260

4.6 130 9.0 3,230

5.0 239 11.9 7,800

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

82

70

61 

55

53

78

90

382

234

*148

113

96

dllO

1,040

dl,800

860

582

480

382

302

239

203

180

170

269

226

186

160

148

177

317

9,293

300

0.952

1.10

Nov.

232

194

192 

246

213

189

177

160

148

139

137

137

134

132

143

*dl,700

2,620

1,270

912

725

615

572

asoo

dl,250

912

775

650

572

430

16,754

558

1.77

1.98

Dec.

353

321

404 

555- 625

444

378

357

333

294

246

229

226

173

222

»19"5" 133

190

185

170

155

140

140

170

220

250

200

180

165

165

155

7,953

257

0.816

0.94

Jan.

150

145

135 

130

135

140

125

115

110

115

*120

120

130

110

100

97

96

93

92

91

89

88

87

86

83

81

79

77

7650"

170

3,355

108

0.343

0.40

Feb.

330

370

340 

900

680

500

800

1,800

1,900

1,850

1,580

1,670

1,260

1,000

*d2,100

2,420

1,720

d2,800

2,700

1,940

1,380

1,000

802

675

d4,600

5.050

2,236

1,620

1,120

47,137

1,625

5.16

5.57

Mar.

885

1,200

1,260 

1,200

1,060

1,480

2,980

6,280

3,870

. 2,230

1,540

1,160

940

954

1,380

1,090

970

885

750

675

615 6"50~

675

,200

,090

* ,030

,160

,090

,370

980 * c:aX

'

45,229

1,459

4.63

5.34

Apr.

1,260

1,350

3,120 

5,700

2,140

1,460

1,920

2,080

1,540

1,230

1,000

830

700

615

565

650

675

675

725

675

615

1,040

*1,260

1,420

1,230

1,090

970

830

725

750

36,838

1,288

3.90

4.35

May

625

830

1,660 

1,160

970

855

3,780

1,960

1,340

1,230

1,120

2,200

6,510

3,040

1,800

1,460

1,120

1,200

1,060

857

750

650

700

606

493

435 6-55

991

700

591

582

41,725

1,346

4.27

4.93

June

725

625

591 

549

470

408

*341

298

271

257

209

183

167

222

270

369

302

636

530

333

341

356

646

2,040

1,850

1,040

1.460

988

675

502

17,654

588

1.87

2.08

July

387

4,750

7,610 

2,860

1,800

1,740

1,120

830

885

750

591

475

439

611

439

1,100

2,050

*1,580

1,030

1,670

1,300

1,370

1,200

857

725

700

625

587

470

374

 

41,234

1,330

4.22

4.87

Aug.

271

239

203 

180

1,380

'1,400

4.180

3,560

1,740

dl, 650

1,000

2,O9O

1,500

1,120

802

620

549

448

493

374

353

290

243

302

236

194

186

229

189

164

*150

26,335

850

2.70

3.11

Sept.

154

257

177 

141

150

743

885

45T

313

250

226

229

186

174

164

338

345

325

239

298

264

219

197

319

250

200

174

162

152

143

8,106

270

0.857

0.96

Calendar year 1955: Max 3, 85O Mln 22 Mean 463 Cfsm 1.47 In. 19.99

Water year 1955-56: Max 7,610 Mln 53 Mean 824 Cfsm 2.62 In. 35.63

Peak discharge (base, 4,400 cfs). --Feb. 25 (6:30 p.m.) 8,830 cfs (12.35 ft); Mar. 8 (2 p.m.) 7,220

cfs (11.62 ft); Apr. 3 (9 p.m.) 5,190 cfs (10.42 ft); May 7 (8 a.m.) 5.040 cfs (10.33 ft); May 13

(10.23 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

recorded graph, weather records, and records for nearby stations.

Note.--Stage-discharge relation affected by ice Dec. 17 to Feb. 7 (doubtful gage-height record 

Jan. 13, 14, Feb. 2, 3, 7).
SUSQUEHANNA RIVER BASIN 379

West Branch Susquehanna River near Curwensville, Pa.

Location. Lat 40°57'45", long 78°31'10", on left bank 30 ft downstream from highway 

bridge on State Highway 453, 1.1 miles south of Curwensville, Clearfield County, and 

1.8 miles upstream from Anderson Creek. Prior to Aug. 24, 1956, at site 30 ft upstream.

Drainage area. 367 sq mi.

Records available. October 1955 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 1,124.52 ft above mean sea level, datum of 

T929. Prior to Aug. 24, 1956, wire-weight gage and crest-stage Indicator 30 ft upstream at same datum.

Extremes. Maximum discharge during year, 10,200 cfs July 3 (gage height, 10.89 ft); minimum daily, 58 cfs Oct. 5.

Remarks. Records good except those for periods of ice effect, doubtful gage-height record, 

or shifting-control, which are fair.

Rating table, water year 1955-56, except periods of ice effect or shifting 

control (gage height, In feet, and discharge, in cubic feet per second)

3.0

3.1 

3.3 

3.6

60

123

270

4.0 

5.0 

7.0

9.9

544

1,400

3,800

8,340

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

', Oct.

106

82

66

60

58

63

102

264 

366

*204

152

120

102 

709

2,290

1,240

780

620

507

413

339

276

242

225

295

313

253

220

209 

199

375

11,250

363

0.989

1.14

Nov.

313

264

242

307

276

242

225

214 

199

190

194

194

155" 185 

204

704

*5.210

1,660

1,120

860

660

620

673

1,360

900

800

700

600

550 

450

18,306

610

1.66

1.86

Dec.

4OO

400

470

619

582

480

420

380 

350

301

270

214

242 

210

220

210

200

*195

220

200

165

150

150

190

240

260

220

190

160 

175

180

8,663

279

0.760

0.88

Jan.

170

165

150

155

155

150

145

135 

135

140

*148

148

148 

127

109

112

112

106

106

106

102

102

109

100

96

93

91

90

89 

100

 

3,894

126

0.343

0.39

Feb.

ISO- 400

400

1,000

700

550

900

2,100 

2,140

2,030

1,810

1,810

1,500 

1,080

*1,480

2,760

1,920

2,660

3,130

2,260

1,700

1,210

900

740

3,910

6,580

2,760

1,920

1,400

51,980

1,792

4.88

5.27

Mar.

940

1,300

1,6OO

1,400

1,300

1,640

3,090

*6.740 

4,820

2,620

1,810

1,400

1,160 

1,030

1,400

1,300

1,120

985

740

660

660

660

740

1,170

1,290

1,160

*1,400

1,300

1,420

ils 10

50,925

1,643

4.48

5.16

Apr.

1,500

1,500

3,230

4.520

2,760

1,810

2,040

2,620 

1,920

1,550

1,210

985

860 

700

660

582

6T>0~

740

820

700

582

1,020

*1,400

1,600

1,500

1,300

1,160

940

860

42,549

1,418

3.86

4.31

May

700

817

1,920

1,500

1,210

1,030

3,480

2,380 

1,600

1,400

1,300

1,940

7,030 

4,100

2,260

1,700

1,400

1,210

1,210

985

820

740

780

740

582

434

6TT

1,210

780 

620

660

47,149

1,521

4.14

4.78

June

740

780

660

660

470

399

*427

399 

301

242

242

200

230" 180 

300

430

399

604

700

427

372

372

680

1,720

2,050

1,290

1,590

1,330

860 

660

19,694

656

1.79

2.00

July

470

3,690

8.260

3,370

2,210

1,920

1,500

1,030 

985

900

660

544

465 

621

507

725

*2,380

1,700

1,240

1,690

1,440

2,030

1,500

1,120

900

860

780

820

660 

507

4,27

46,109

1,4,87

4.05

4.67

Aug.

359

295

194

TTO

1,260

1,810

4,190

4,960 

2,360

2,030

1,400

2,500

2,150 

1,700

1,160

860

740

582

620

470

427

559

295

552

532

253

236

282

253 

220

*194

33,093

1,068

2.91

3.35

Sept.

185

259

253

180

157

285

1.290

582 

399

513

270

307

248 

225

204

292

449

442

339

326

366

295

264

306

352

259

225

204

194 

180

9,650

322

0.877

0.98

Calendar year 1955: Max - Min - Mean - Cfsm - In.

Water year 1955-56: Max 8,260 Min 58 Mean 938 Cfsm 2.56 ,In. 34.79

Peak discharge (base. 5.100 cfs).--Feb. 25 (11 p.m.) 9,970 cfs (10.8 ft); Mar. 8 ("5 p.m.) 8,520 

cfs (10.0 ft); Apr. 3 (11 p.m.) 5,700 cfs (8.50 ft); May 7 (12 m.) 5,100 cfs (7.9 ft); May 13 (12 m.) 

9,420 cfs (10.5 ft); July 3 (4 a.m.) 10,200 cfs (10.89 ft); Aug. 8 (11 a.m.) 5,860 cfs (8.4 ft).

* Discharge measurement made on this day.

Hote. Doubtful gage-height record Hov. 26 to Dec. 3, Dec. 6-9, June 12-16; discharge computed on 

basis of records for upstream station. Shifting-control method used Hov. 17-25, Dec. 4, 5, 10-15, 

Jan. 11-23. Stage-discharge relation affected by ice Dec. 14 to Jan. 10, Jan. 24 to Feb. 7.
380 SUSQUEHANNA RIVER BASIN

Clearfield Creek at Dlmeling, Pa.

Location. --La t 40C 58'15", long 78°24'25", on right bank on downstream side of highway 

bridge at Dimeling, Clearfield County, 400 ft downstream from Little Clearfield Creek.

Drainage area. 371 sq ml.

Records available. --October 1918 to September 1921 and October 1931 to September 1956 In 

reports of Geological Survey. October 1913 to September 1941 In reports of Pennsylvania 

Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage Is 1,146.08 ft above mean sea level, datum of 

T929, supplementary adjustment of 1943. Prior to Oct. 17, 1928, chain gage at same site 

and datum.

Average discharge. 43 years (1913-56), 581 cfs.

Extremes. --Maximum discharge during year, 9,650 cfs May 13 (gage height, 11.91 ft); maximum gage height. 12.26 ft Feb. 8 (Ice jam); minimum discharge, 58 cfs Oct. 5 (gage 

height, 3.62 ft).

1913-56: Maximum discharge, 30,600 cfs Mar. 18, 1936 (gage height, 18.49 ft, from 

floodmark In gage shelter), from rating curve extended above 15,000 cfs; minimum, 6 cfs 

Oct. 1, 9, 1925; minimum daily, 7.1 cfs Oct. 1, 1925.

Remarks --Records good except those for periods of ice effect or no gage-height record, 

which are fair. Occasional regulation at low flow by mills above station.

Revisions (water years). --WSP 756: Drainage area. WSP 891: 1936-39.

Rating tables, water year 1955-56, except period of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Pet. 7 Pet. 8 to Sept. 30

3.6 55

4.0 117

4.5 240

5.0 442

6.0 1,030

7.0 1,810

7.S 2,610

4.0 122

4.5 247

5.0 450

6.0 1,050

8.0 2,880

10.0 5,680

11.0 7,610

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Total

Mean

Cfsm

In.

Oct.

91

78

67

63

60

74

86

231

257

164

*117

97

91 

594

1,820

897

542

423

342

292

254

205

181

171

183

165

150

140

155

200 

155

8,505

268

0.722

0.83

Nov.

157

144

144

164

164

155

144

133 

127

125

123

123

119

I5T

151

*675

*2,560

1,590

932

780

658

592

685

998

870

720

652

558

457

372

14,931

498

1.34

1.50

Dec.

359

542

559

478

452

576

518

295 

292

270

254

220

210 

190

180

175

170

*170

165

155

150

145

145

155

170

190

160

140

155

130

125

7,055

228

0.615

0.71

Jan.

120

115

120

115

110

115

105

95 

90

95

*110

105

100 

95

95

93

91

90

87

85

85

88

86

84

82

80

79

W

90

150

350

3,285

106

0.286

0.33

Feb.

160

2lO

550

500

250

250

450

800 

1,560

1,780

1,740

1,510

1,270 

1,020

*1,550

2,550

1,740

2,160

2,660

2,000

1,560

1,160

948

742

3,090

4,600

2,490

1,920

1,430

42,210

1,456

3.92

4.23

Mar.

1,120

1,500

1,740

1,690

1,560

1,930

3,380

5.510 

4,220

2,620

1,870

1,470

1,230 

1,160

1,780

1,430

1,230

1,120

948

850

790

820

820

1,140

1,250

*1,050

1,080

1,080

1,080

1,470

1,590

50,308

1,623

4.37

5.04

Apr.

1,230

1,310

2,560

5,990

2,530

1,780

2,220

2,660 

2,000

1,600

1,310

1,080

915 

790

706

736

790

772

772

700

634

979

 1,430

1,510

1,390

1,230

1,160

980

882

850

41,496

1,585

3.75

4.16

May

760

812

1,640

1,270

1,080

980

2,920

2,200 

1,560

1,350

1,190

1,750

7,560 

4,260

2,450

1,870

1,470

1,310

1,310

1,020

850

754

790

754

588

511

528

760

604

500 

470

45,851

1,479

3.99

4.60

June

544

599

538

522

455

391

*339

301 

299

317

255

238

213 

196

69T

701

558

1,080

1,420

820

676

700

729

2,410

1,190

1,390

1,470

1,190

850

652

21,712

724

1.95

2.18

July

528

4,580

6,710

5,690

2,530

1,820

1,550

980

915

790

654

511

460

558

415

475

1,610

*1,540

1,040

1,050

882

754

742

588

558

555

550

522

450

364 

504

58,215

1,233

3.52

3.83

Aug.

269

247

221

196

1,420

1,640

2,470

5,590

1,820

1,640

1,180

2,290

1,960 

1,450

1,050

790

652

544

662

490

450

400

550

570

520

500

520

310

306

221 

224

27,952

901

2.43

2.80

Sept.

 196

191

174

157

145

188

'See 355

188

161

154

206

168 

166

150

212

297

279

252

218

213

196

176

191

204

174

150

143

159 

152

5,821

194

0.523

0.58

Calendar year 1955: Max 5,780 Min 58 Mean 475 Cfsm 1.28 In. 17.37

Water year 1955-56: Max 7,560 Mln 60 Mean 859 Cfsm 2.26 In. 50.79

Peak discharge (base, 4,500 cfs). Feb. 25 (10:30 p.m.) 6,040 cfs (10.22 ft)s Mar. 8 (5:30 p.m.)

5,860 cfs (10.13 ft)

ft); July 2 (12 p.m.

Apr. 4 (5:50 a.m.) 4,550 cfs (9.28 ft); May 15 (10:50 a.m.) 9,650 cfs (11.91

8,030 cfs (11.21 ft) .

* Discharge measurement made on this day.

, 

by ice Dec. 12 to Feb. 8.
SUSQUEHANNA RIVER BASIN 381

Moshannon Creek at Osceola Mills, Pa.

Location.--Lat 40°50'55", long 78°16'05", on left bank 10 ft upstream from Pennsylvania 

 Railroad bridge at Osceola Mills, Clearfield County, and 0.1 mile downstream from Trout 

Run.

Drainage area. 68.8 sq mi.

Records available . October 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,446.98 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943.

Average discharge.--16 years, 115 cfs.

Extremes. Maximum discharge during year, 1.900 cfs May 13 (gage height, v'.OS ft); minimum, 12 cfs Oct. 5 (gage height, 1.71 f*0; minimum daily, 13 cfs Oct. 3-5.

1940-56: Maximum discharge, 2,760 cfs Mar. 1, 1954 (gage height, 9.00 ft),-from 

rating curve extended above 1,500 cfs on basis of contracted-opening computations at 

gage heights 7.58 and 9.00 ft; minimum, 7.3 cfs Oct. 11, 1943 (gage height, 1.58 ft); 

minimum daily, 7.8 cfs Sept. 21, 1955.

Maximum stage known, 17.7 ft Mar. 18, 1936.

Remarks.--Records good.

Revisions (water years).--WSP 1232: 1941-46, 1948, 1950-51, drainage area.

Rating table, water year 1955-56 (gage height, _n feet, and discharge, 

in cubic feet per second)

1.7

1.8 

H.O 

2.5 

2.9

12

18

38

110

197

3.5 

4.0 

5.0 

6.0

422

604

985

1,410

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

16

14

13

13

13

24

25

70

29

22

 19

18

19 

308

340

124

99

92

80

69

62

57

54

57

59

51

48

44

43

57

52

1,991

64.2

0.933

1.08

Nov.

46

42

50

50

44

40

40

39

39

39

40

40

39 

43

42

279

*235

154

145

133

125

118

145

145

125

125

122

117

107

1OO

2,808

93.6

1.36

1.52

Dec.

94

90

97

99

86

78

72

71

68

65

62

61

59 

52

52

50

47

*46

44

39

39

38

38

45

68

44

40

34

32

32

28

1,770

57.1

0.830

0.96

Jan.

28

28

30

30

30

30

28

28

26

28

32

34

32 

30

27

26

*26

26

24

26

25

25

23

23

23

22

22

20

25

67

65

909

29.3

0.426

0.49

Feb.

39

50

J.15

73

68

73

108

113

139

154

143

158

137 

122

279

256

219

357

313

274

*216

175

156

141

661

534

422

362

274

6,131

211

3.07

3.31

Mar.

246

309

305

362

349

491

722

1.210

90S

640

498

398

329 

333

297

256

235

209

186

170

161

158

ISI

232

178

181

181

*175

194

222

206

10,499

539

4.93

5.68

Apr.

197

212

437

569

516

430

640

586

516

438

357

297

252

216

192

209

186

178

161

145

f2~4 137

252

246

232

225

206

192

184 

178

8,810

294

4.27

4.76

May

152

*194

216

173

165

214

681

457

382

353

293

426

1,580 

965

622

516

402

341

274

225

192

170

186

149

155

122

155

135

113 

110

110

9,926

520

4.65

5.57

June

135

120

12o

113

108

104

99

94

90

86

79

73

*68 

72

82

68

71

141

102

86

94

88

86

148

124

102

135

102

91 

84

2,963

98.8

1.44

1.60

July

81

94T

GT6

590

483

410

301

235

256

190

154

135

141 

135

110

149

115

102

135

252

165

143

154

133

127

*117

127

120

107

86

6,958

224

5.26

3.76

Aug.

80

76

69

65

408

294

309

290

260

330

212

634

480 

390

293

255

192

181

186

147

135

117

105

115

94

84

86

82

73 

68

71

6,157

199

2.89

3.33

Sept.

65

58

52

51

*48

74

S5

50

44

42

45

64

47 

43

44

72

68

58

47

54

44

43

42

54

43

38

36

36

35 

35

1,497

49.9

0.725

0.81

Calendar year 1955: Max 640 Min 7.8 Mean 100 Cfsm 1.45 In. 19.77

Water year 1955-56: Max 1,380 Min 13 Mean 165 Cfsm 2.40 In. 32.67

Peak discharge (base, 600 cfs).--Oct. 14 (9:30 p.m.) 846 cfs (4.66 ft); Feb. 25 (7:50 p.m.) 1,230 

cfs (5.64 ft); Mar. 8 (1:50 p.m.) 1,460 cfs (6.11 ft); Apr. 5 (6 p.m.) 622 cfs (4.03 ft); Apr. 7 

(8 p.m.) 676 cfs (4.20 ft): May 7 (4 a.m.) 965 cfs (4.97 ft); May 13 (9:30 a.m.) 1,900 cfs (7.08 ft); 

July 2 (3 p.m.) 1,500 cfs (6.24 ft); July 4 (4:30 p.m.) 826 cfs (4-61 ft); Aug. 5 (9:30 a.m.) 

622 cfs (4.07 ft); Aug. 12 (12:30 p.m.) 1,000 cfs (5.03 ft).

* Discharge measurement made on this day.
382 SUSQUEHANNA RIVER BASIN

West Branch Susquehanna River at Karthaus, Pa.

Location.--Lat 41°06'55", long 78°06'40", on left bank 900 ft upstream from highway bridge 

at Karthaus, Clearfleld County, 1,000 ft upstream from Mosquito Creek, and 3.3 miles 

downstream from Moshannon Creek. Records Include flow of Mosquito Creek.

Drainage area. 1,462 sq mi, Includes that of Mosquito Creek.

Records available. February 1940 to September 1956 in reports of Geological Survey.

October 1318 to September 1920 (gage heights only) and February 1940 to September 1941 

in reports of Pennsylvania Department of Forests and Waters.

:

. Water-stage recorder. Datum of gage is 830.59 ft above mean sea level, datum of 

929, supplementary adjustment of 1943. Prior to Sept. 30, 1920, chain gage at site 

900 ft downstream at datum 20.88 ft lower. Feb. 21 to Sept. 30, 1940, chain gage at 

site 900 ft downstream at present datum.

Average discharge. 16 years, 2,532 cfs.

Extremes.--Maximum discharge during year, 28.900 cfs Mar. 8 (gage height, 10.73 ft); minimum, 249 cfs Oct. 5 (gage height, 0.92 ft).

1918-20, 1940-56: Maximum discharge, 50,900 cfs Apr. 1, 1940 (gage height, about 

13.9 ft); minimum, 109 cfs Sept. 30, 1943; minimum gage height, 0.48 ft Sept. 30, 1943, 

Sept. 22, 1955.

Maximum stage known, about 24.5 ft Mar. 18, 1936, from floodmark at highway bridge 

(discharge, about 135,000 cfs).

Remarks.--Records good except those for periods of ice effect, which are fair.

Rating tables, water year 1955-56, except periods of ice effect (gage. 

height, in feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 8 Mar. 9 to Sept. 30

O.9 

1.3 

1.7 

2.0 

3.0

240

442

720

955

2,050

4.0 3,740

6.0 8,640

8.0 15,400

10.1 25,300

1.6 700

2.0 1,020

3.0 2,130

4.0 3,830

6.0 8,650

8.0 15,400

9.7 23,200

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

512

390

321 

283

262

297

358

696 

1,030

972

690

553

474

1,970

9,220

6,590

3,940 

2,900

2,340

1,840

1,590

1,370

1,210

1,120

1,160

1,180 

1,150

1,030

939

1,060

1,080

48,527

1,565

1.07

1.23

Nov.

1,140

1,100

*1,020 

1,050

1,080

1,030

972

931 

891

851

915

843

819

843

891

1,660

7,740 

6,660

4,690

3,840

3,160

2,810

2,730

3,940

4,260

3,540 

3,160

2,810

2,490

1 

'

98O

69,846

2,328

1.59

1.78

Dec.

1,780

1,780

1,650 

1,840

2,260

1,910

1,720

*1,530 

1,480

1,420

1,220

1,150

1,120

1,090

1,010

915

758 

859

998

891

690

660

650

855

1,080

1,180 

1,000

850

735

819

36,683

1,183

0.809

0.93

Jan.

795 756"

712 

742

735

728

705

645

587

652

698

750

735

*668

609

616

595 

553

525

505

505

512

512.

461

450

430 

420

410

400

455

18,673

602

0.412

0.47

Feb.

1,800

1,910

1,650 

4,440

3,260

2,570

4,140

6,000 

5,260

5,260

5,740

5,700

4,500

*3,500

5,000

8,000

6,620 

6,620

10,100

8,080

6,750

5,030

3,940

3,160

6,990

20.000 

11,700

8,640

6,620

172,980

5,965

4.08

4.40

Mar.

5,140

5,740

7,270 

7,010

7,010

8,240

12,800

25,100 

23,060

13,500

9,510

7,570

6,080

5,380

5,720

5,720

4,920 

4,480

3,940

3,440

3,160

5,070

3,070

3,630

4,810

4,370 

4,480

4,700

*4,590

5,720

6 ,080

219,250

7,073

4.84

5.58

Apr.

5,380

5,040

6,650 

14,200

11,600

8,650

8,100

10,700 

9,220

7,570

6,320

5,260

4,480

3,830

3,340

3,250

3,440 

3,250

3,160

3,070

2,750

3,070

4,480

*5,150

5,150

4,700 

4,370

5,940

3,650

5,500

167,030

5,568

5.81

4.25

May

2,800

5,500

7,000 

5,800

5,000

4,300

11,000

9,580 

6,810

5,720

5,580

5,900

17,900

18,000

11,000

8,570

6,810 

5,720

5,580

4,590

3,750

3,540

3,160

3,160

2,650

2,270 

2,270

2,760

3,070

2,500

2,420

181,490

S.855

4.00

4.62

June

2,900

3,340

3,250 

5,070

*2,820

2,500

2,200

2,000 

1,870

2,650

2,060

1,750

1,580

1,460

1,940

2,820

2,900

4,660

5,720

4,260

3,340

2,900

2,570

5,270

7,060

5,610 

5,150

5,500

5,850

*

99,960

3,352

2.28

2.54

July

2,500

5,600

19,700 

15,100

9,510

7,510

6,560

4,590 

3,830

3,850

5,070

2,500

2,200

2,270

2,270

1,940

 3,480 

4,570

4,040

4,270

4,700

4,810

4,150

3,730

2,980

2,730 

2,730

2,500

2,500

2,000

1.750

141,520

4,565

3.12

3.60

Aug.

1,520

1,410

1,260 

1.140

3,510

8,480

11,100

15.000 

10,500

8,930

7,510

7,240

10,100

8,100

6,080

4,590

5,630 

3,070

3,070

2,730

2,270

2,060

1,750

1,690

1,580

,410 

,310

,260

,460

,310

,540

136,210

4,594

3.01

3.46

Sept.

 2,220

1,630

1,520 

1,360

1,160

1,150

1,770

2.250 

1,520

1,260

1,120

1,150

1,160

1,050

984

1,020

1,210 

1,580

1,410

1,260

1,180

1,260

1,140

1,030

1,060

1,140 

939

842

794

765

57,892

1,265

0.864

0.96

Calendar year 1955: Max 15,800 Min 113 Mean 2,141 Cfsm 1.46 In. 19.88

Water iteryear 1955-56: laaa-ab: Max 25,100 za.iuuMin wi262 iibi;Mean 3,634 i.bi*Cfsm urs2.49 £3In. i33.82 OO.BC

Peak discharge (base. 15.000 cfs).--Feb. 26 (5:30 a.m.) 22,700 cfs (9.59 ft); Mar. 8 (7:30 p.m. 

£8,900 cfs (10775 ft); Apr. 4 (1 p.m.) 15,400 cfs (8.02 ft); May 15 (7 p.m.) 25,500 cfs (10.14 ft 

July 5 (12 m.) 21,700 cfs (9.40 ft); Aug. 7 (11:30 p.m.) 16,200 cfs (8.16 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 23, 24, 27, 28, Jan. 25-30.
SUSQUEHANNA RIVER BASIN 383

Driftwood Branch Sinnemahoning Creek at Sterling Run, Pa.

Location. Lat 41°24'45", long 78°11'50", on downstream side of first pier from right 

bank of highway bridge at Sterling Run, Cameron County, 300 ft upstream from Sterling 

Run.

Drainage area. 272 sq mi.

Records available. November 1918 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. September 1913 to September 1917 (gage heights and discharge measurements only) and November 1918 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

;e. Water-stage recorder. Datum of gage is 894.84 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Oct. 1, 1913, to Sept. 30, 1931, chain gage 

and Oct. 1, 1931, to Sept. 30, 1932, water-stage recorder, at same site and datum. 

Oct. 1, 1932, to Sept. 30, 1942, staff gage at site 800 ft upstream at same datum.

Average discharge.--37 years (1919-56), 459 cfs.

Extremes. Maximum discharge during year, 17,800 cfs Mar. 8 (gage height, 8.92 ft); minimum daily, 12 cfs Oct. 5.

1913-17, 1918-56: Maximum discharge, 47,800 cfs July 18, 1942 (gage height, 14.70 

ft, from floodmarks at highway bridge), from rating curve extended above 6,200 cfs on 

basis of slope-area determination of peak flow; minimum observed, 0.4 cfs Sept. 7, 

12-14, 1930.

Remarks. Records good except those for period of ice effect, which are fair. 

Revisions. WSP 1272: Drainage area.

Rating tables, water year 1955-56, except period of ice effect (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1-6, 12, 13

-0.4 9.0

-.3 14

-.1 26

0.0 35

.1 50

Oct. 7-11, 

Oct. 14 to Mar. 8 Mar. 9 to Sept. 30

0.2

.4

.7

1.0

1.5

214

373

720

2.0 

4.0 

6.0 

7.6

1,260

4,010

7,79O

12,800

.6 

1.0

131

202

450

1.5 

2.0 

4.0 

4.9

835

1,330

4,010

5,490

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

19

16

14

13

12

28

112

471

170

93

64

47

41

1,460

5.470

1,250

695 

586

471

385

322

279

234

239

452

439

409

367

333

322

316

13,129

424

1.56

1.80

Nov.

268

*238

238

253

224

214

214

196

183

174

170

162

145

426

452

2,590

2.850 

1,620

1,070

765

601

503

607

1,120

1,030

840

671

608

490

427

19,327

644

2.37

2.64

Dec.

350

322

322

379

490

483

*471

439

403

350

290

260

230

210

180

140

150 

160

150

135

125

120

120

150

230

170

140

120

120

115

110

7,434

240

0.882

1.02

Jan.

105

10O

105

100

94

92

88

84

80

98

140

*130

120

105

90

85

80 

78

76

74

73

72

71

70

67

64

62

62

64

80

150

2,759

89.0

0.327

0.38

Feb.

110

95

9O

S5

80

76

80

110

170

320

420

370

340

330

350

450

*380 

450

700

550

450

350

310

300

2,500

5.750

1,800

1,200

801

16,997

586

2.15

2.32

Mar.

631

1,070

1,650

1,510

1,360

4,020

5,140

12 . 600

5,380

2,290

1,610

1,500

1,240

1,070

871

767

686 

580

492

422

401

42f

429

506

436

445

*4S5

555

542

542

471

50,101

1,616

5.94

6.85

Apr.

401

55?

1,500

3,620

4.180

2,580

2,370

2,500

1,670

1,25O

1,020

853

726

610

558

689

718 

702

648

572

506

618

565

528

492

*520

485

464

670

758

55,125

1,104

4.06

4.53

May

758

796

1,050

1,020

8SO

750

1,320

1,210

1,020

1,120

1,050

1,550

4.450

3,650

1,950

1,400

1,000 

862

718

625

550

499

457

587

515

277

560

560

285

306

375

31,344

1,011

3.72

4.29

June

785

810

1,040

1.140

1,000

*801

632

506

459

791

520

555

265

251

259

292

699 

506

567

265

255

207

224

198

299

198

202

170

140

121

15,715

457

1.68

1.87

July

121

202

175

124

153

153

128

1O8

205

162

157

124

140

222

182

159

143 

*126

108

146

182

150

178

146

128

121

143

124

102

95

90

4,475

144

0.529

0.61

Aug.

84

78

74

72

154

5,010

5.550

2,580

1,480

1,020

670

513

450

471

320

253

212 

186

546

401

315

253

212

424

283

228

*212

235

317 

253

253

18,905

610

2.24

2.58

Sept.

319

394

526

259

212

2O7

217

162

140

126

121

126

111

106

121

599

55T 

265

217

253

212

190

186

30S

258

202

178

162

150

140

6,578

213

0.783

0.87

Calendar year 1955: Max 5,220 Min 4.8 Mean 391 Cfsm 1.44 In. 19.51

Water year 1955-56: Max 12,600 Min 12 Mean 595 Cfsm 2.19 In. 29.76

Peak discharge (base. 4.700 efs). Oct. 15 (1 a.m.) 6,040 cfs (5.19 ft); Feb. 2S~t? p.m.) 6,430 

cfs (5.43ft),- Mar. 8 (2 p.m.) 17,800 cfs (8.92 ft); Apr. 4 (12 p.m.) 5,140 cfs (4.67 ft); May 15 

(1 p.m.) 5,670 cfs (5.01 ft); Aug. 6 (12 m.) 4,970 cfs (4.56 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 11 to Feb. 25 (no gage-height record Jan. 1-4, 

Feb. 24).
384 SUSQUEHANNA RIVER BASIN

Sinnemahoning Creek at Sinnemahoning, Pa.

Location. Lat 41°19iOO", long 78°06 I 10", on left bank 0.2 mile upstream from Grove Run 

 and 0.7 mile upstream from Pennsylvania Railroad bridge at Sinnemahoning, Cameron 

County.

Drainage area.--685 sq mi.

Records available. July 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 769.36 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943.

Average discharge. 18 years, 1,169 cfs.

Extremes. Maximum discharge during year, 30,000 cfs Mar. 8 (gage height, 13.87 ft); minimum, 38 cfs Oct. 5 (gage height, 1.61 ft).

1938-56: Maximum discharge, 59,800 cfs July 18, 1942 (gage height, 21.58 ft), from 

rating curve extended above 31,000 cfs on basis of slope-area determination of peak 

flow; minimum, 1.2 cfs Sept. 4, 1939 (gage height, 1.18 ft); minimum daily, 1.4 cfs 

Sept. 3, 1939.

Maximum stage known, 21.94 ft Mar. 18, 1936, from floodmark (discharge, 61,200 cfs, 

from rating curve extended above 31,000 cfs as explained above).

Remarks.--Records .good except those for period of ice effect, which are fair.

Rating tables, water year 1955-56, except period of ice effect (gage 

height, In feet, and discharge. In cubic feet per second)

Oct. 15 to Sept. 30

1.6 

1.8 

2.0

2.5

2.6

28

60

109

226

397

5.0 719

5.5 1,520

4.0 2,150

4.4 2,880

2.1 141

2.4 270

2.7 459

5.0 710

5.5 

4.0 

7.0 

12.6

1,250

2,000

8,400

25,500

Discharge, In cubic feet per second, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Total

Mean

Cfsm

In.

Oct.

69

56

47

42

3J3

56

182

1,600

651

354

222

173

142

2,790

9,460

3,700

2,110 

1,600

1,190

940

768

665

561

528

955

973

888

787

729 

692

748

55,697

1,087

1.59

1.85

Nov.

658

561

*553

658

561

556

513

482

459

445

438

438

405

975

4,810

7,000 

4,280

5,060

2,290

1,750

1,460

1,510

5,160

2,860

2,430

1,950

1,700

1,570

1,150

49,097

1,637

2.59

2.67

Dec.

975

857

857

994

1,170

1,120

1,060

*1,010

940

857

758

683

658

550

470

560

370 

450

400

350

320

510

310

400

600

500

400

550

520

300 

280

18,957

611

0.892

1.05

Jan.

270

260

270

260

250

240

230

220

210

250

*4~IO~ 450

350

270

250

220

210 

205

200

195

190

190

185

180

175

170

165

165

170

200

500

7,270

255

0.343

0.59

Feb.

250

240

230

220

210

200 210"

270

450

850

1,100

1,250

1,150

1,050

1,000

1,900

*1,600 

^2,390

2,860

2,550

1,780

1,380

1,170

908

6,890

12,200

5,750

4,060

2,760

56,658

1,955

2.85

5.07

Mar.

2,040

3,130

4,900

4,380

4,060

8,810

12,100

25,200

13,600

6,800

4,800

3,960

3,260

2,860

2,350

2,070

1,770 

1,550

1,290

1,130

1.050

1,100

1,080

1,410

1,290

1,280

 1,370

1,480

1,520

1,730

1,550

124,920

4,030

5.88

6.78

Apr.

1,540

1,520

4,190

8,050

8,540

5,810

5,550

5,660

4,590

3,560

2,860

2,290

1,900

1,560

1,410

1,660

1,810 

1,770

1,770

1,670

1,540

1,930

1,810

1,700

1,580

*1,580

1,480

1,350

2,020

2,220

84,720

2,824

4.12

4.60

May

2,180

2,240

3,560

5,260

2,660

2,200

3,160

2,760

2,550

2,760

2,760

4,400

9,810

9,700

5,880

4,280

3,060 

2,560

2,020

1,690

1,440

1,280

1,180

1,050

857

75S

888

1,010

796

1,050

84,575

2,722

5.97

4.58

June

2,240

2,590

2,760

5,060

2,540

*2,020

1,580

1,260

1,070

1,570

1,130

847

701

658

857

1,290

1,480 

2,080

1,920

1,300

1,060

919

888

908

1,200

940

1,040

1,020

796

638

42,122

1,404

2.05

2.29

July

556

1,090

1,540

994

1,790

1,580

1,250

962

1,080

1,050

867

720

656

857

758

658

629 

521

*424

664

787

656

665

586

505

459

721

647

603 

458

583

24,856

802

1.17

1.55

Aug.

545

309

265

226

1,2Z~C)

5,980

10,200

8,520

4,900

3,820

2,570

1,920

1,610

1,560

1,130

908

787 

665

1,560

1,080

877

729

603

905

729

561

*505

556

725 

701

647

56,491

1,822

2.66

5.07

Sept.

748

1,480

1,070

847

701

620

620

490

410

370

359

358

326

352

490

655

758 

665

528

556

553

490

474

707

629

556

467

403

376 

364

17,320

577

0.842

0.94

Calendar year 1955: Max 10,200 Mln 12 Mean 1,065 Cfsm 1.55 In. 21.12

Water year 1955-56: Max 25,200 Mln 59 Mean 1,641 Cfsm 2.40 In. 32.60

Peak discharge (base, 8,400 cfs).--Oct. 15 (5 a.m.) 13,900 cfs (8.97 ft); Nov. 16 (8:30 p.m.) 

8,900 cfs (7.25 ft); Feb. 25 (9 p.m.) 16,600 cfs (9.86 ft); Mar. 8 (2:30 p.m.) 50,000 cfs (13.87 ft); 

Apr. 5 (1:30 a.m.) 9,670 cfs (7.54 ft); Hay 15 (11 p.m.) 12,700 cfs (8.59 ft); Aug. 7 (8 p.m.) 

11,600 cfs (8.25 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 14 to Feb. 16.
SUSQUEHANNA RIVER BASIN 385

First Fork Sinnemahoning Creek near Slnnemahonlng, Pa.

Location.--Lat 41°24'05", long 78°01'30", on right bank 350 ft downstream from Woodrock 

Run, 1,500 ft upstream from Roaring Run, three-quarters of a mile downstream from 

George B. Stevenson Dam, and 7| miles northeast of Sinnemahoning, Cameron County.

Drainage area. 245 sq ml.

Records available. October 1953 to September 1956.

. Water-stage recorder. Datum of gage Is 878.71 ft above mean sea level, datum of 

"929. Prior to Mar. 31, 1954, staff gage at same site and datum.

Extremes.--Maximum discharge during year, 10,200 cfs Mar. 1 (gage height, 6.60 ft); minimum dally, 15 cfs Oct. 5; minimum observed gage height, 0.00 ft Mar. 14.

1953-56: Maximum discharge, that of Mar. 1, 1956; minimum, 5.6 cfs Sept. 22, 23, 

1955 (gage height, -0.13 ft).

Maximum discharge known, 80,000 cfs July 18, 1942, by slope-area method.

Remarks. Records good except those for periods of Ice effect, which are fair. Flow regulated by First Pork Sinnemahoning Creek Reservoir since Jan. 31, 1956 (see p. 440).

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 1 Mar. 2 to Sept. 3O

O.05

.1

.4

.7 

1.0 

1.3

14

17

50

99

190

352

1.6 

2.0 

3.0 

4.O 

5.2

600

1,000

2,160

3,620

6,020

1.1 

1.5

161

264

508

2.0 

3.0

4.0 

5.5

1,030

2,260

3,740

7,360

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

24

21

18

16

15

29

83

148

335

226

168

129

111

1,360

6.020

3,490

1,790

1,400

1,220

980

760

572

433

381

483

520

508

466

433

442 

483

23,064

744

Nov.

475

442

*418

403

359

346

308

278

251

235

230

217

186

217

262

1,000

2.100

2,100

1,570

1,070

830

660

612

860

980

1,010

870

740

572

491

20,092

670

Dec.

418

359

333

320

333

346

359

*388

381

346

308

273

246

210

180

150

180

170

140

100

96

94

95

105

180

150

135

120

110

105

97

6,827

220

Jan.

92

90

92

90

87

81

76

73

7O

96

123

*118

106

73

64

62

59

57

55

53

52

51

50

49

48

46

45

45

50

67

45

2,165

69.8

Feb.

24

27

30

31

31

35

35

35

31

31

31

32

31

31

34

34

*34

38

38

37

36

111

396

339

452

669

86

168

230

-

3,137

108

Mar.

*2,440

*3,000

*3,240

*1,790

1,160

2,910

2,470

262

4,210

1.360

5,680-

2,670

1,760

*700

*800

1,310

806

498

536

412

306

302

398

398

398

398

398

*392

392

398

392

48,186

1,554

Apr.

338

283

566

3,090

4.680

3,100

2,580

2,650

1,860

1,630

1,350

1,130

952

896

802

820

795

590

642

965

591

545

536

493

454

*494

431

392

439

625

34,719

1,157

May

600

702

805

805

763

660

1,030

1,260

1,110

1,010

830

898

2,380

5.280

1,890

1,320

1,030

827

650

517

477

408

412

343

288

237

288

256

214

218

229

25,737

830

June

392

44S

466

554

658

*572

454

386

338

302

204

227

164

174

256

186

347

344

256

217

193

190

162

141

141

190

167

254

186

121

8,690

290

July

121

11S

118

118

118

183

161

158

158

199

155

129

129

129

211

150

125

133

*80

95

178

255

280

251

198

*156

256

311

273

217

200

5,363

173

Aug.

158

125

102

102

158

1,020

1.400

1,050

702

536

396

302

296

284

240

184

184

159

230

222

154

183

141

250

211

164

171

*154

189

216

172

9,855

318

Sept.

272

350

373

302

248

250

246

165

144

144

135

106

144

92

126

162

215

217

148

202

176

176

184

168

214

164

177

154

151

133

5,738

191

Adjusted for change in contents in First Fork Sinnemahoning Creek Reservoir

Mean

Cfsm 

In.

744 

3.04 

3.50

670 

2.73 

3.0E

Calendar year 1955: 

Water year 1955-56:

220 

0.898 

1.04

75.9 

0.310 

0.36

428 

1.75 

1.89

1,281 

5.23 

6.03

1,158 

4.73 

5.28

829 

3.38 

3.90

Observed

Max 6,020 Min 5.6 Mean 414 

Max 7,360 Mln 15 Mean 529

289 

1.18 

1.32

174 

0.710 

0.82

320 

1.31 

1.51

189 

0.771 

0.86

Adjusted

Mean 414 Cfsm 1.69 In. 22.95 

Mean 532 Cfsm 2.17 In. 29.56

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 14 to Jan. 10, Jan. 16-29.
386 SUSQUEHANNA RIVER BASIN 

Kettle Creek at Cross Pork, Pa.

Location. Lat 41°28'30", long 77°49'35", on right bank just upstream from bridge on 

State Highway 144, 0.2 mile downstream from Potter-Clinton County line and 0.9 mile 

downstream from Cross Pork, Potter County.

Drainage area. 136 sq mi.

Records available. November 1940 to September 1956.

Sage. Water-stage recorder. Datum of gage is 1,027.12 ft above mean sea level, adjustment of 1912.

Average discharge. 15 years (1941-56), 240 cfs .

Extremes. Maximum discharge during year, 5,140 cfs Oct. 14, Mar. 8, from rating curve extended above 2,500 cfs as explained below; maximum gage height, 7.37 ft Mar. 8; minimum discharge, 24 cfs Oct. 5 (gage height, 1.04 ft).

1940-56: Maximum discharge, 12,400 cfs Nov. 25, 1950 (gage height, 11.04 ft), from 

rating curve extended above 2,500 cfs on basis of slope-area determination at gage 

height 10.38 ft; minimum, 3.2 cfs Sept. 30, 1941; minimum gage height, 0.62 ft Sept. 2, 

3, 1953.

Maximum stage known, about 14.0 ft Mar. 18, 1936, from information by local residents (discharge, about 20,000 cfs, from rating curve extended above 2,500 cfs as explained above).

Remarks. Records good except those for period of ice effect, which are fair.

Rating tables, water year 1955-56, except period of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 8 Mar. 9 to Sept. 30

1.0

1.2 

1.5 

2.0 

2.5

208

388

3.0 635

4.0 1,290

6.0 3,310

6.5 3,920

1.2 46

1.6 112

2.0 214

2.5 399

3.0 642

4.0 1,290

4.6 2,850

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

31

28

26

25

24

63

78

435

329

254

199

163

141

2,090

5.760

1,750

1,050

755

624

500

413

337

278

267

264

237

221

208

202

260

281

15,293

493

3.62

4.18

Nov.

267

*247

237

211

194

179

169

156

146

136

134

125

114

129

125

455

912

755

596

457

372

306

296

333

360

368

344

310

264

234

8,931

298

2.19

2.44

Dec.

196

174

166

171

191

191

*199

208

205

188

171

156

139

134

127

109

115

110

100

90

85

82

80

90

140

125

110

100

95

90

85

4,222

136

1.00

1.15

Jan.

80

80

85

80

77

74

72

70

68

74

85

78

*74

72

70

68

67

66

65

64

63

62

60

59

58

57

56

56

60

75

70

2,145

69.2

0.509

0.59

Feb.

60

80

75

70

65

62

65

75

90

120

170

180

130

110

115

*120

110

115

300

240

190

160

150

150

650

1.100

701

510

380

6,343

219

1.61

1.73

Mar.

310

421

564

505

490

1,580

2,OOO

5.850

2.6OO

1,410

1,080

945

790

671

516

442

383

312

272

234

208

202

199

211

187

190

199

*230

227

208

181

21,617

697

5.12

5.91

Apr.

173

236

688

2,010

2.850

2,200

2,050

1,850

1,220

912

790

683

631

571

501

521

521

492

429

378

342

335

312

282

*268

275

258

250

282

297

22,607

754

5.54

6.18

May

319

354

383

387

374

359

556

592

545

492

399

395

921

1.120

850

648

482

399

327

275

237

214

193

170

150

138

140

129

114

110

112

11,884

383

2.82

3.25

June

165

143

173

187

*196

181

165

150

135

127

110

99

91

91

101

113

120

99

86

79

78

74

66

79

93

68

134

112

91

79

3,485

116

0.853

0.95

July

73

84

74

65

208

230

237

211

221

176

150

133

125

125

104

95

88

79

*73

124

264

286

275

227

193

170

274

250

234

199

168

5,215

168

1.24

1.43

Aug.

145

125

106

95

133

 358

474

425

350

308

230

205

193

176

150

133

120

110

144

110

101

91

84

119

90

81

11 *84

93

81

81

5,074

164

1.21

1.39

Sept.

83

104

90

81

76

83

81

70

63

60

59

59

56

54

54

~93 107

86

83

91

84

84

83

81

74

70

65

63

60

57

2,254

75.1

0.552

0.62

Calendar year 1955: Max 3,76O Min 6.7 Mean 222 Cfsm 1.63 In. 22.17

Water year 1955-56: Max 3,850 Min 24 Mean 298 Cfsm 2.19 In. 29.82

Peak discharge (base. 2.4OO cfs).--Oct. 14 (11 p.m.) 5,14O cfs (7.35 ft); Mar. 8 (12:3O p.m.) 

5,140 cfs (7.37 ft); Apr. 5 (2:30 a.m.) 3,19O cfs (5.86 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 17 to Feb. 26.
SUSQUEHANNA RIVER BASIN 387

Kettle Creek near Westport, Pa.

Location.--Lat 41°19'10", long 77°52i25", on left bank 0.4 mile upstream from Short Bend 

Run and 3.5 miles upstream from mouth and Westport, Clinton County.

Drainage area.--233 sq mi.

Records available. October 1954 to September 1956.

Sage.--Water-stage recorder. Datum of gage is 728.24 ft above mean sea level, unadjusted.

 T'rior to Oct. 14, 1954, staff gage at same site and datum.

Extremes. Maximum discharge during year, 7,970 cfs Mar. 8 (gage height, 10.48 ft); mini-

 mum, 26 cfs probably Oct. 5 (gage height, 1.57 ft, from recorded range in stage).

1954-56- Maximum -discharge, that of Mar. 8, 1956; minimum, 12 cfs July 23, Aug. 3, 

1955; minimum gage height, 1.39 ft July 23, 1955.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating tables, water year 1955-56, except period of Ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. I to Mar. 8 Mar. 9 to Sept. 30

1.5 

1.7

2.1 

2.5 

3.0

19

42

111

213

405

3.5 654

4.0 992

6.0 2,820

8.9 6,000

1.9 78

2.3 164

2.7 293

3.0 413

3.5 657

4.0 992

6.0 2,820

7.7 4,630

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

42

36

33

29 

28

90

120

650 

450

330

240

170

140

2,250

*5.910

2,670

1,540

1,070

846

684

567

474

392

354

396

558

342

317

305 

505

654

21,992

709

3.04

3.51

Nov.

588

 497

446

384 

321

294

271

246 

220

200

200

180

160

180

170

800

1.500

1,100

900

700

550

500

460

550

600

630

560

480

400 

340

14,427

481

2.06

2.30

Dec.

300

260

245

260 

280

280

*282

290 

286

271

246

230

220

210

190

170

175

200

170

150

135

125

120

150

300

250

210

180

190

175

165

6,715

217

0.931

1.07

Jan.

155

150

160

150 

140

150

140

125 

120

130

140

130

 120

115

115

110

110

105

105

100

99

98

96

95

93

92

.91

90

100 

125

115

3,664

118

0.506

0.58

Feb.

96

110

140

120 

110

105

110

130 

160

210

300

330

220

190

250

*380

350

450

600

450

350

300

270

280

700

2.520

1,360

917

672

11,980

415

1.77

1.91

Mar.

536

658

1,070

954 

905

2,590

5,520

5.970 

*4,570

2,570

1,760

1,580

1,510

1,070

859

722

650

522

455

596

559

565

555

405

571

575

579

*422

435

396

351

36,234

1,169

5.02

5.78

Apr.

112

365

916

3,510 

4.190

3,220

2,920

2,920 

2,050

1,540

1,270

1,070

954

855

755

741

754

722

652

576

522

557

508

480

457

 457

459

417

466 

503

54,814

1,160

4.98

5.56

May

557

597

698

716 

686

608

917

1,070 

954

853

686

686

1,840

2.270

1,620

1,190

860

686

566

475

415

571

545

501

261

257

240

250

214 

192

192

21,509

694

2.98

5.45

June

563

596

448

494 

*494

459

375

520 

509

282

255

198

178

172

208

209

565

286

225

189

175

162

140

152

200

155

270

250

185

165

7,993

266

1.14

 1.28

July

150

175

156

152

296

555

371

355 

350

300

260

220

210

205

180

150

140

128

ill 202

492

582

517

417

345

297

355

345

320 

275

240

8,613

278

1.19

1.37

Aug.

208

1S1

154

157

195

700

1,050

806 

618

527

405

359

300

270

250

205

185

170

200

170

155

140

130

180

140

115

110

121

149 

137

159

8,546

276

1.18

1.36

Sept.

149

175

170

140 

125

135

150

115 

105

100

98

96

92

88

90

180

155

142

128

159

155

128

150

128

117

109

105

97

97 

91

5,687

125

0.528

0.59

Calendar year 1955: Max 5,910 Mln 12 Mean 351 Cfsm 1.51 In. 20.45

Water year 1955-56: Max 5,970 Mln 28 Mean 492 Cfsm 2.11 In. 28.74

Peak discharge (base. 3.700 cfs). Oct. 15 (about 4 a.m.) 7.71O nfs (1O.27 ft); Mar. 8 (4 p.m.)

7,970 cfs (10.48 ft); Apr. 5 (4 a.m.) 4,630 cfs (7.71 ft). 

* Discharge measurement made on this dav.
388 SUSQUEHANNA RIVER BASIN

West Branch Susquehanna River at Renovo, Pa.

^^^IrTale'a^Renov^'n'int.0^ "I45 '?5". left bank on upstream side of Eighth Street Bridge at Renovo, Clinton County, 1 mile upstream from Paddy Run.

Drainage area.--2.97S sq mi.

Records available -October 1919 to September 1921 and October 1931 to September 1956 in 

reports or Geological Survey. January 1908 to September 1915, October 1915 to September 1919 (gage heights only] , and October 1919 to September 1941 in reports of Penn- 

?J nT \ P?E£? ,°£ ?orests md Waters. Gage-height records collected July 1895 

to December 1903 and October 1905 to September 1956 are contained in reports of U. S. 

weacrier Bureau .

Gage . Water-stage recorder. Datum of gage is 634.19 ft above mean sea level, datum of 

1929. Prior to Mar. 17, 1930, staff or chain gages at same site and datum.

Average discharge. --44 years (1908-15, 1919-56), 4,889 cfs.

Extremes . Maximum discharge during year1 , 82,500 cfs Mar. 8 (gage height, 15.40 ft); minimum, 355 cfs Oct. 5 (gage height, -0.04 ft).

1895-1903, 1905-56: Maximum discharge, 236,000 cfs Mar. 18, 1936 (gage height, 

29.39 ft, from floodmark in gage shelter), from rating curve extended above 87,000 cfs 

on basis of slope-area determination of peak flow; minimum, 80 cfs Dec. 6, 1908 (gage 

height, -1.10 ft).

Maximum stage known prior to 1895, 27.3 ft June 1, 1889, from floodmark (discharge, 

about 211,000 cfs).

Remarks. --Records good except those for period of ice effect, which are fair. Plow

regulated by First Fork Sinneraahoning Creek Reservoir beginning Jan. 31, 1956 {see p. 440).

Revisions (water years) . WSP 756: Drainage area. WSP 781: 1909(M).

Rating table, water year 1955-56 except period of Ice effect ( 

height, in feet, and discharge, in cubic feet per second)

-0.1 

0.0

1.0 

2.0

318

379

792

1,420

3,070

3.0

5.0

8.0

11.0

13.2

5,220

11,600

25,000

45,400

63,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cf sm

In.

Oct.

866

606

478

414

367

420

565

2,380

2,980

2,350

1,770

1,300

1,050

6,000

55.000

21,400

12,000

10,800

6,810

5,580

4,640

3,980 

3,360

2,980

3,360

3,660

3,560

3,260

2,980

3,360

3,760

152,036

4,904

1.65

1.90

Nov.

3,660

*3,560

3,160

3,160

2,980

2,880

2,700

2,520

2,350

2,260

2,180

2,180

2.020

2,100

2,880

6,660

18.700

18,200

12,800

9,680

7,700

6,660 

6,380

8,320

10,000

8,980

7,700

6,960

5,970

5,220

180,520

6,017

2.02

2.26

Dec.

,520

,080

,870

,980

. 6AO

,520

* ,190

,980

,760

,560

,160

,880

,700

,500

,300

2,100

2,000

2,200

2,200

1,900

1,700

1,600 

1.550

2,000

2,800

2,700

2,200

2,000

1,850

1^850

87,190

2,813

0.946

1.09

Jan.

1.800

1,700

1,650

1,700

1,650

1,600

1,500

1,400

1,300

1,600

1,800

1,800

1,650

1,450

1,300

1,300

1,250

1,200

1,150

1,100

1,100

1,150 

1,100

1,000

1,000

950

930

920

950

1,400

41,350

1,334

-

-

Feb.

1.900

2,600

2,300

3,800

5,000

3,500

4,200

6,000

7,000

7,400

7,600

7,300

6,960

5,710

5,220

9,060

10,000

 8,980

14,800

13,200

10,400

8,320 

6,810

5,970

9,820

39.000

24,600

16,900

12,800

267,150

9,212

-

-

Mar.

11,800

12,100

20,500

16,900

14,800

23,300

35,300

62.800

59,400

38,200

27,000

19,600

14,800

12,400

10,800

12,000

10,000

8,320

7,550

6,660

5,970

5.710 

5,840

6,520

7,700

7,550

7,550

8,320

 8,000

8,640

9,680

505,710

16,310

-

-

Apr.

8,640

8,000

11,600

28,800

56.000

25,000

22,000

25,000

21,500

16,900

14,000

11,600

10,000

8,320

7,700

7,100

7,700

7,400

6,960

7,100

6.580

6,520 

7,700

8,520

8,640

8,000

 7,700

7,100

7,250

7,550

366,480

12,220

-

-

May

7,400

7,100

10,000

12,400

10,800

9,320

10,800

16,900

13,200

11,600

11,200

12,400

30,200

43.600

25,500

18,700

14,400

12,000

10,000

8,980

7,550

6,660 

6,100

5,840

5,220

4,520

4,190

4,750

5,100

4,520

4,640

355,790

11,460

-

-

June

6,100

7,550

8,000

8,980

 8 , 320

7,250

6,100

5,220

4,640

5,340

4,980

3,980

3,460

5.070

5,760

4,750

5,710

7,170

9.520

7,700

5,970

5,220 

4,750

5,510

9,520

8,520

7,100

8,000

6,580

4,980

186,950

6,252

-

-

July

4,190

4,540

19.900

18,700

13,600

11,200

9,680

7,400

6,380

6,100

5,340

4,410

3,980

4,190

4,190

3,870

3,660

6,210

5,460

 5,340

7,250

6,810 

6,960

5,970

5,100

4,410

4,520

4,640

4,410

3,760 

5.160

205,530

6,624

-

-

Aug.

2,790

2,520

2,180

1.940

2,850

14,500

24,500

28.600

21,000

16,000

13,200

10,000

14,000

12,400

9,320

7,250

5,840

4,860

4,980

5,340

4,190

3,660 

3,260

3,160

3,360

2,790

 2,440

2,440

2,610 

2 980

2J 610

237,570

7,664

-

-

Sept.

3,560

4.060

3,870

3,260

2,790

2,440

2,610

3,460

2,790

2,180

1,940

1,910

1,840

1,830

1,840

1,960

2,610

2,880

2,790

2,520

2,440

2,350 

2,350

2,440

2,350

2,350

2,020

1,800

1,650 

1 580

74,490

2,483

-

-

Calendar year 1955: Max 37,200 Min 168 Mean 4,691 CFsm 1.58 In. 21.40

Water year 1955-56: Max 62,800 Mln 367 Mean 7,269 CFsm - In. -

 Discharge measurement made on this day. 

Mote.--Stage-discharge relation affected by ice Dec. 13 to Feb. 12.
SUSQUEHANNA RIVER BASIN 389

Spring Creek near Axemann, Pa.

Location. Lat 40°53'25", long 77°47'40", on right bank at upstream side of highway bridge, 

1.6 miles west of Axemann, Centre County, 1.7 miles southwest of Bellefonte, and 

2.5 miles upstream from Logan Branch.

Drainage area. --87. 2 sq mi.

Records available. October 1940 to September 1956.

~Gage. --Water-stage recorder. Datum of gage is 788.81 ft above mean sea level, datum of 

Average discharge. 16 years, 91.2 cfs.

Extremes . Maximum discharge during year, 920 cfs Feb. 25 (gage height, 4.42 ft); minimum, 

4T~cTs Oct. 12 (gage height, 2.04 ft).

1940-56: Maximum discharge, 1,670 cfs Nov. 25, 1950 (gage height. 5.44 ft), from 

rating curve extended above 640 cfs; minimum, 9.6 cfs Nov. 24, 1941 (gage height, 1.69 

ft); minimum daily, 23 cfs Nov. 7, 23, 1941.

Maximum stage known, 8.6 ft in March 1936, from information by local residents.

Remarks . Records good except those for periods of no gage-height record, which are fair. 

Occasional regulation at low flow by fish hatchery above station.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

2.0

2.5

2.6

Oct. 1 to Feb. 10

3.0 

3.4

Feb. 11 to Sept. 30

256

413

2.1 

2.4 

2.8

52

103

207

3.2 

3.5

337

459

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

5 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

ZB

27

28

29

50

31

Total

Mean

Cfsm

In.

Oct.

46

45

44 

44

12

51

45

51

47

45

44

42

44

145

500

184

154

155

120

107

98

90

89

90

87

85

80

78

78 

78

76

2,658

85.7

0.983

1.13

Nov.

73

70

72 

*70

69

68

68

67

66

66

68

70

61

60

60

140

170

129

132

111

104

102

100

96

90

90

90

92

83

85

2,612

87.1

0.999

1.11

Dec.

81

85

85 

81

80

76

74

72

*70

68

68

68

66

60

64

62

62

61

60

58

56

54

55

58

66

57

54

56

56 

54

54

2,017

65.1

0.747

0.86

Jan.

54

55

54

54

55

54

53

52

54

*54

96

79

64

57

56

54

53

52

52

55

52

51

49

49

49

48

47

47

47

 =|2

1,919

61.9

0.710

0.82

Feb.

57

60

58 

58

M

56

110

162

185

595

225

327

198

*124

331

187

148

367

235

167

138

121

112

108

425

244

156

144

128

5,074

175

2.01

2.16

Mar.

121

134

136 

138

131

154

184

292

269

228

201

175

164

162

159

151

141

136

131

126

124

126

*126

146

158

158

156

154

154 

156

121

4,792

155

1.78

2.04

Apr.

117

119

154 

167

162

154

207

213

204

184

175

164

146

158

156

156

124

119

114

105

105

112

126

114

*108

105

105

105

105

ML

4,098

137

1.57

1.75

May

99

105

114 

103

101

110

251

167

178

170

159

167

190

167

159

159

162

159

156

128

124

119

147

124

114

112

112

110

105

101

101

4,251

157

1.57

1.81

June

101

99

119 

*105

99

95

95

91

87

85

80

78

76

76

78

76

21

102

93

83

87

81

76

93

95

89

95

83

80

78

2,645

88.2

1.01

1.13

July

74

95

85 

87

81

78

74

75

73

69

65

66

66

65

65

69

*68

65

65

89

71

66

71

65

65

62

96

75

66

66

63

2,230

71.9

0.825

0.95

Aug.

62

62

59 

59

140

181

292

219

181

170

144

221

190

175

55

144

136

128

134

121

119

119

103

103

97

95

95

95

*97

96 

200

4,092

152

1.51

1.75

Sept.

250

151

114 

108

103

180

173

148

141

136

126

124

117

114

114

117

108

103

101

112

97

95

95

91

89

87

85

85

85

Si

5,504

117

1.54

1.49

Calendar year 1955: Max 314 Min 36 Mean 85.9 Cfsm 0.985 In. 13.36

Water year 1955-56: Max 423 Min 42 Mean 109 Cfsm 1.25 In. 17.00

Peak discharge (base, 550 cfs). Oct. 15 (about 6 a.m.) 570 cfs (about 5.50 ft); Jan. 50 (7 p.m.)

528 cfs (5.65 ft); Feb. 10 (10:50 p.m.) 556 cfs (3.71 ft); Feb. 15 (3 p.m.) 468 cfs (3.52 ft);

Feb. 18 (9:50 p.m.) 605 cfs (3.81 ft); Feb. 25 (9 p.m.) 920 cfs (4.42 ft); Mar. 8 (2 p.m.) 364 cfs 

(3.27 ft); Aug. 6 (10:50 p.m.) 400 cfs (5.56 ft); Aug. 12 (2:50 p.m.) 360 cfs (5.26 ft).

* Discharge measurement made on this day. 

Note. No gage-height record Nov. 5, 7, 9, 11, 12, 16, 17, Dec. 14, 15, 20-23, 25, 31, Jan. 2, 9, 

Feb. 6, 7, Aug. 50 to Sept. 1; discharge estimated on basis of records for nearby stations.

505690 O - 59 - Z6
390 SffSQUEHANNA RIVER BASIN

North Bald Eagle Creek below Spring Creek, at Milesburg, Pa.

Location. Lat 40°56'35", long 77°47'10" , on right bank 130 ft downstream from highway 

bridge on U. S. Highway 220 at Milesburg, Centre County, and 250 ft downstream from 

mouth of Spring Creek. Prior to Aug. 31, 1956, at site 130 ft upstream.

Drainage area. 265 sq mi.

Records available. December 1955 to September 1956.

Gage. Water-stage recorder. Datum of gage is 682.49 ft above mean sea level, datum of 

1929. Prior to Aug. 31, 1956, wire-weight gage at site 130 ft upstream at same datum.

Extremes. Maximum discharge during period, 4,000 cfs Aug. 6 (gage height, 6.80 ft); minimum daily, 130 cfs Jan. 26-28.

Remarks. Records good except those for periods of ice effect, which are fair. This

station is operated in connection with a study of the effect of comprehensive soil conservation measures on streamflow and suspended sediment loads. For about three hours 

each day a discharge of about 4 cfs Is diverted around station by the West Perm Power 

Co., the diversion being equivalent to a mean daily discharge of about 0.5 cfs. 

Records of suspended sediment loads and water temperatures for the water year 1956 are 

given in WSP 1450.

Rating table. Dec. 1, 1955, to Sept. 30, 1956, except periods of Ice effect (gage 

height, in feet, and discharge, In cubic feet per second)

1.3 

1.5 

2.0 

2.5

114

160

304

494

3.0 

5.0 

6.0

798

2,270

3,200

Discharge, In cubic feet per second, December 1955 to September 1956

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct. Nov.

t221

Dec.

350

500

510.

500

280

260

245

250

*220

210

230

210

215

195

210

180

186

186

200

200

176

165

160

170

200

175

160

155

160 

155

i-2

6,523

210

0.792

0.92

Jan.

150

160

170

165

160

170

165

155

160

*175

258

245

214

176

183

180

175

165

160

155

155

150

145

140

135

130

T30

130

140

500 

360

5,654

182

0.687

0.79

Feb.

Hi

214

258

275

243

258

538

661

954

1,470

1,140

1,410

885

*635~

1,210

*917

798

1,590

1,210

1,070

764

546

471

407

1.620

1,280

934

798

604

23,152

798

5.01

3.25

Mar.

546

698

798

934

866

1,280

*1,850

«5.150

1,980

1,260

1,000

798

666

698

698

666

666

575

520

ill

520

546

*604

852

666

666

666

604

635

604

520

26,963

870

3.28

5.78

Apr.

520

575

1,060

1,420

1,140

954

1.640

1,470

1,210

954

764

604

520

494

471

494

448

448

370

353

556

489

690

*666

575

604

448

428

407 

388

20,900

697

2.63

2.93

Hay

353

353

504

604

520

498

1.950

1,240

934

866

635

867

1,490

1,210

934

764

698

575

448

428

388

388

520

428

356

556

536

400

350

504 

304

19,941

645

2.45

2.80

June

504

304

452

*407

353

336

304

304

304

300

273

245

228

302

420

320

304

616

698

520

588

370

320

336

304

258

304

280

- 235 

220

10,307

344

1.30

1.45

July

210

565

500

670

1,380

843

600

450

400

370

273

258

243

258

228

*228

258

245

214

1.700

525

635

546

407

520

320

320

304

288 

258

243

13,855

447

1.69

1.94

Aug.

228

214

200

200

1,300

2,150

2.660

1,680

1,070

934

764

1,050

764

655

494

448

370

353

388

336

320

304

288

288

243

243

243

243

*336

884

19,918

643

2.43

2.80

Sept.

1.280

592

419

360

550

807

675

453

400

365

346

339

323

310

507

533

317

298

288

565

301

288

276

264

258

246

240

237

234

251

11,478

383

1.45

1.61

Calendar year : Max Min Mean cfsm In.

Water year : Max Min Mean Cfsm In.

* Discharge measurement made on this day. 

t Result of discharge measurement.

.Note.--Stage-discharge relation affected by Ice Dec. 22-24, Dec. 26 to Jan. 10, Jan. 16-30. 

gage-height record Dec. 1-16; discharge estimated on basis of records for nearby stations.
SUSQUEHANNA RIVER BASIN 391

North Bald Eagle Creek at Blanchard, Pa.

Location. --La t 41°03i05", long 77°36'10", on left bank at end of Smith's Lane, 0.7 mile 

upstream from Marsh Creek and 0.9 mile south of Blanchard, Centre County.

Drainage area. --33 9 sq mi.

Records available. May 1954 to September 1956.

~Gage. Water-stage recorder. Datum of gage is 579.79 ft above mean sea level, datum of 

Extremes. --Maximum discharge during year, 5,130 cfs Oct. 15 (gage height, 9.89 ft); minimum daily, 140 cfs Jan. 26-28.

1954-56: Maximum discharge, that of Oct. 15, 1955; minimum, 117 cfs Aug. 10, 11, 

1955 (gage height, 3.60 ft).

Remarks . Records good except those for periods of ice effect, which are fair. This 

sTaTion is operated in connection with a study of the effect of comprehensive soil 

conservation measures on streamflow and suspended sediment loads. Records of suspended 

sediment loads and water temperatures for the water year 1956 are given in WSP 1450.

Rating tables, water year 1955-56, except periods of lee effect (gage 

height. In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 25 Feb. 26 to Sept. 30

3.6 

3.9 

4.5 

5.0

117

238

606

970

6.0 

7.0 

8.0 

8.5

1,960

2,910

3,660

4,010

3.8 

4.0 

4.5 

5.0

180

270

558

900

6.0 

7.0 

7.5

1,890

2,880

3,300

Discharge, In cubic feet per second, water year October 1955 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

50 

31

Total

Mean

Cfsm

In.

Oct.

183

166

158

150

150

214

219

424

524

248

214

191

183

2,300

*4 . OOP

1,480

830

668

552

453

396

347

315

507

524

296

274

259

245

296 

378

16,540

554

1.58

1.81

Nov.

515

385

3 SO

*301

264

254

248

238

229

224

238

248

229

233

245

1,530

2.060

1,060

822

703

634

613

599

703

620

592

545

505

434

584

15,651

521

1.54

1.71

Dec.

565

336

336

341

330

301

280

269

*264

258

245

' 258

258

219

229

196

210

210

200

190

165

160

165

185

229

220

190

160

165

175 

170

7,217

235

0.687

0.79

Jan.

165

160

165

170

191

191

187

175

*175

200

501

518

254

214

205

200

196

185

179

170

170

165

155

145

145

140

140

140

145

448

608

6,400

206

0.608

0.70

Feb.

269

248

274

518

280

290

590

858

1,050

1,470

1,260

1,480

*1,070

751

1,130

1,040

860

1,730

1,650

1,150

906

724

620

525

1,510

1.840

964

870

706

26,553

909

2.68

2.89

Mar.

628

761

900

956

848

1,120

1,700

5.500

3,400

1,300

997

840

747

747

811

804

734

666

615

602

628

*673

713

862

775

747

727

700

700

706 

673

29,380

948

2.80

5.22

Apr.

615

621

926

1,350

1,020

840

1,290

1.560

1,140

916

790

706

640

577

546

558

521

491

449

420

5JI6

554

713

*700

640

590

546

509

479

467

21,550

718

2.12

2.36

May

420

458

782

654

596

571

2.140

1,270

924

804

706

811

1,340

1,170

908

811

686

647

585

528

485

449

505

475

408

585

591

420

562

551 

557

21,393

690

2.04

2.35

June

562

568

509

*473

425

396

368

545

323

325

286

265

251

511

504

562

402

676

621

461

431

391

334

385

345

396

345

307

260

346

11,571

579

1.12

1.25

July

232

409

549

668

1,120

768

602

461

414

562

512

281

270

291

251

*246

318

251

221

1.520

964

700

640

497

420

396

414

368

334

281 

256

14,822

478

1.41

1.63

Aug.

246

227

214

205

893

1,730

5.050

1,520

964

804

615

858

790

686

564

497

445

408

455

591

579

554

507

518

286

265

260

270

522

*551 

499

19,311

623

1.84

3.12

Sept.

1.660

695

515

451

385

665

782

540

467

425

396

391

368

368

351

396

385

351

323

420

351

323

307

296

275

260

251

246

246

241

15,106

457

1.29

1.44

Calendar year 1955: Max 4,000 Mln 120 Mean 429 Cfsm 1.27 In. 17.17

Water year 1955-56 : Max 4,000 Mln 140 Mean 555 Cfsm 1.64 In. 22.27

Peak dlscharee (base. 5,400 cfs). Oct. 15 (8:50 a.m.) 5,150 cfs (9.89 ft): Feb. 25 (11:50 P.m.)

5,590 cfs (7.90 ft); Mar. 8 (7 p.m.) 5,940 cfs (8.45 ft); Aug. 7 (8:50 a.m.) 3,590 cfs (7.88 ft).

* Discharge measurement made on this day.

Note. Stage -discharge relation affected by Ice Dec. 19-24, Dec. 26 to Jan. 4, Jan. 20-29.
392 SUSQUEHANNA RIVER BASIN 

Marsh Creek at Blanchard, Pa.

Location.--Lat 41°03'35", long 77°36'15", on right bank 20 ft downstream from highway 

bridge, 0.5 mile southwest of Blanchard, Centre County, and 0.6 mile upstream from 

mouth. Prior to Aug. 31, 1956, at site 20 ft upstream.

Drainage area. 44.1 sq mi.

Records available. November 1955 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 586.16 ft above mean sea level, datum of 

~l"929. Prior to Aug. 31, 1956, wire-weight gage at site 20 ft upstream at same datum.

Extremes.--Maximum discharge during period, 830 cfs Mar. 8 (gage height, 4.29 ft); minimum 

daily, 7.0 cfs Jan. 28.

Remarks. Records good except those for periods of ice effect, which are fair. This station is operated in connection with a study of the effect of comprehensive soil conservation measures on streamflow and suspended sediment loads. Records of suspended 

sediment loads and water temperatures for the water year 1956 are given in ¥SP 1450.

Rating tables, Nov. 1, 1955, to Sept, 30, 1956, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Nov. 1 to Aug. 30 Aug. 31 to Sept. 30

1.1 

1.3

1.5

1.6 

1.8

7.0

11

18

2.1 

2.5 

3.0 

3.9

191

341

670

1.45 

1.6 

1.9 

2.1

Discharge, In cubic feet per second, November 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct. Nov.

30

25

22

23

20

18

16

T7

*16

16

17

18

16

113

19

269

276

191

165

128

102

63

75

74

70

74

65

62

52 

46

2,003

66.8

1.51

1.69

Dec.

38

35

32

31

27

24

22

19

*23

20

19

16

14

13

13

12

12

11

11

10

9.3

9.0

8.7

10

13

11

10

9.0

8.8

9.O

_i2.

508.3

16.4

0.372

0.43

Jan.

8.1

8.0

8.2

8.0

7.8

7.6

7.4

7.4

*7.3

*25

38

25

22

18

16

14

13

12

11

10

9.7

9.5

9.0

8.5

8.0

7.5

7.2

7.0

7.5 

25

31

403.7

13.0

0.295

O.34

Feb.

15

17

20

18

18

18

42

82

109

214

187

248

*138

94

237

158

107

362

262

2O4

140

106

79

70

389

230

145

135

117

3,961

137

3.11

3.34

Mar.

83

176

165

152

158

246

*341

*633

428

232

178

124

104

117

109

109

115

74

67

63

65

 81

88

113

1O6

100

104

96

117 

96

88

4,728

|L53

3.47

3.99

Apr.

94

77

147

204

165

126

178

218

178

142

111

92

70

67

63

58

54

54

52

52

41

37

76

*63

54

68

63

60

51 

48

2,763

92.1

2.09

2.33

May

45

52

79

74

70

78

212

165

128

111

92

114

232

218

178

142

115

86

65

60

51

44

35

32

32

32

31

20

M

26

2,663

85.9

1.95

2.25

June

32

25

71

*63

56

51

43

34

32

35

28

26

2O

92

64

33

39

77

60

51

62

45

38

42

35

33

49

34

29 

28

1,327

44.2

1.00

1.12

July

21

52

41

26

63

40

32

31

29

30

23

20

18

18

18

 16

16

15

15

196

140

131

140

102

77

75

58

74

37

37

31

1,622

52.3

1.19

1.37

Aug.

28

22

21

18

48

290

218

142

94

106

70

83

6O

46

32

31

28

27

27

23

18

17

14

14

14

13

 15

14

17 

16

31

1,597

51.5

1.17

1.35

Sept.

82

45

32

25

21

92

70

50

38

31

28

27

23

28

26

40

37

34

32

38

29

28

25

23

21

19

18

18

16 

16

1,012

33.7

0.764

0.85

Calendar year : Max Mln Mean Cfsm In.

Water year : Max Mln Mean Cfsm In.

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 11 to Jan. 10, Jan. 17-30 (no gage-height 

'ecord Dec. 16 to Jan. 3j discharge estimated on basis of records for nearby stations).
SUSQUEHANNA RIVER BASIN 393

North Bald Eagle Creek at Beech Creek Station, Pa.

Location. Lat 41°03'55", long 77°34'00", at downstream end of center pier of highway 

bridge Just downstream from Beech Creek at Beech Creek Station, Clinton County.

Drainage area. 559 sq mi.

Records available. October 1918 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. June 1910 to September 1941 in reports of Pennsylvania 

Department of Forests and Waters. Prior to October 1928, published as Bald Eagle Creek 

at Beech Creek Station.

Gage. Water-stage recorder. Datum of gage is 571.74 ft above mean sea level (Pennsylvania State highway benchmark). Prior to Jan. 10, 1930, chain gage at same site and 

datum.

Average discharge. 46 years (1910-56), 795 cfs.

Extremes. Maximum discharge during year, 10.300 cfs Oct. 15 (gage height, 8.58 ft); minimum, 171 cfs Oct. 5 (gage height, 1.74 ft).

1910-56: Maximum discharge, 25,600 cfs Mar. 18, 1936 (gage height, 14.42 ft), from 

rating curve extended above 12,000 cfs by logarithmic plotting; minimum, 18 cfs Jan. 9, 

1931 (gage height, 1.14 ft), result of freezeup; minimum daily, 25 cfs Jan. 22, 23, 

1931.

Remarks.--Records good except those for periods of ice effect, which are fair.

Revisions (water years). WSP 756: Drainage area. WSP 1001: 1931(m). WSP 1111. 

1936(M).

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 7 Mar. 8 to Sept. 3O

1.7 

2.0 

2.5 

3.0

156

295

629

1,030

4.0 2,130

6.0 5,250

7.8 8,610

2.0 295

2.5 645

3.0 1,070

4.0 2,130

6.0 5,250

7.2 7,440

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

241

208

190

183

179

299

307

644

534

392

336

290

268

4,320

8.600

3,080

1,940

1,460

1,160

962

823

728

644

614

652

577

520

484

464

534 

659

32,292

1,042

1.86

2.15

Nov.

562

520

512

*527

477

444

430

404

386

373

386

392

373

567

392

2,070

5.240

1,940

1,520

1,290

1,140

1,060

1,020

1,160

1,040

1,010

954

896

791

721

26,397

880

1.57

1.76

Dec.

659

622

599

599

570

520

477

450

437

398

373

*373

373

336

354

257

290

290

280

250

220

215

220

280

354

336

257

208

227

230 

220

11,274

364

0.651

0.75

Jan,

220

210

220

230

257

252

241

218

213

*290

430

437

354

279

257

263

263

232

227

220

220

215

205

185

185

180

180

180

185

499 

735

8,282

267

0.478

0.55

Feb.

313

301

324

360

348

342

688

1,040

1,360

1,890

1,740

2,000

*1,530

1,050

1,640

1,630

1,310

2,600

2,640

1,940

1,580

1,210

1,010

879

2,440

5.140

1,940

1,810

1,410

40,465

1,395

2.50

2.69

Mar.

1,230

1,580

1,810

2,000

1,870

2,780

4,010

7.580

5,820

3,530

2,550

2,060

1,750

1,640

1,640

1,590

1,390

1,290

1,160

1.070

1,120

*1,160

1,200

1,490

1,340

1,340

1,340

1,290

1,540

1,540 

1,250

62,560

2,012

3.60

4.15

Apr.

1,160

1,120

1,570

2,620

2,410

1,940

2,670

5.220

2,550

2,060

1,750

1,540

1,340

1,200

1,120

1,070

1,010

912

827

750

693

904

1,160

1,120

 1,070

1,040

989

929

878

844

42,466

1,416

2.53

2.83

Hay

768

819

1,340

1,160

1,120

1,080

5.380

2,200

1,750

1,540

1,340

1,540

2,940

3,220

2,480

2,060

1,640

1,490

1,290

1,120

998

912

929

861

742

677

685

709

615

657 

653

42,693

1,377

2.46

2.84

June

768

818

860

 1.160

1,120

1,020

912

818

742

709

615

542

505

604

827

629

621

1,050

965

768

734

669

581

669

637

542

669

605

505

455

22,115

737

1.32

1.47

July

407

671

836

975

1,490

1,120

852

677

613

542

476

427

407

542

454

*434

512

400

423

2.310

1,010

1,160

1,160

912

784

750

725

717

597

498 

448

23,309

752

1.35

1.55

Aug.

414

388

343

325

1,290

2,850

4.090

2,410

1,700

1,440

1,120

1,380

1,290

1,200

963

878

784

701

759

653

613

528

469

498

434

388

574

388

761

*505 

961

50,897

997

1.78

2.06

Sept.

2.080

I,6i6

784

645

565

1,170

1,070

768

645

581

535

542

498

490

505

589

558

505

469

589

483

455

434

407

581

562

557

531

325

313

18,456

615

1.10

1.23

Calendar year 1955: Max 8,600 Hln 126 Mean 718 Cfsm 1.28 In. 17.43

Water year 1955-56: Max 8,60O Hln 179 Mean 986 Cfsm 1.76 In. 24.03

Peak discharge (base. 5.700 efs). Oct. 15 (6 a.m.) 10,300 cfs (8.58 ft)j Mar. 8 (7 p.m.) cfs (7.93 ft). 

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 18-24, Dec. 50 to Jan. 4, Jan. 20-29.
394 SUSQUEHANNA RIVER BASIN

Pine Creek at Cedar Run, Pa.

Location.--Lat 41°31'20", long 77°26 I 55", on left bank at downstream side of highway

bridge at Cedar Run, Lycoming County, 2,000 ft downstream from Cedar Run and 1.2 miles 

upstream from Gamble Run.

Drainage area. 604 sq ml.

Records available . October 1919 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. July 1918 to September 1919 (gage heights only) and October 1919 to September 1941 in reports of Pennsylvania Department of Forests and 

Waters. Gage-height records collected at same site since 1920 are contained in reports of U. S. Weather Bureau.

Gage. Water-stage recorder. Datum of gage is 780.36 ft above mean sea level, datum of 

1929. Prior to Feb. 13, 1930, chain gage at same site and datum.

Average discharge.--37 years (1919-56), 806 cfs.

Extremes. Maximum discharge during year, 19,600 cfs Oct. 14 (gage height, 9.19 ft); minimum, 53 cfs Oct. 4, 5, 6.

1919-56: Maximum discharge, 52,000 cfs May 28, 1946 (gage height, 14.39 ft), from 

rating curve extended above 16,000 cfs on basis of slope-area determination of peak 

flow; minimum, 5.1 cfs Sept. 6, 1929; minimum gage height, 0.80 ft Nov. 28, 1930; minimum daily discharge, 5.8 cfs Sept. 6, 1929.

Remarks. Records good except those for periods of ice effect, which are fair. 

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1-14, 

Mar. 9 to Sept. 30 Oct. 15 to Mar. 8

1.7

1.8 

2.0 

2.5 

3.0

179

539

997

4.0 

5.0 

7.0 

7.4

2,370

4,300

10,500

12,100

1.9 

2.2 

2.5 

3.0

108

295

525

975

4.0 

5.0 

6.O 

8.2

2,300

4,230

6,800

14,900

Discharge, In cubic feet per second, water year October 1955 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsro

In.

Oct.

70

66

59

56

53.

89

157

722

561

397

331

275

237

9,610

*1 1.9.00

5,580

4,350

3,280

2,490

1,940

1,550

1,300

1,060

955

1,180

1,040

925

856

808

968

1,320

54,185

1,748

2.89

3.34

Nov.

*1,140

1,060

1,010

955

837

753

708

639

581

549

541

525

ill

485

533

2,300

5.080

2,540

2,060

1,740

1,440

1,250

1,160

1,620

1,390

1,380

1,290

1,170

986

895

35,094

1,170

1.94

2.16

Dec.

762

699

656

690

828

*708

690

682

673

622

540

520

470

470

460

450

440

460

430

410

380

360

350

400

550

470

400

360

350

330

310_

15,920

514

0.851

0.98

Jan.

300

300

320

310

*300

290

280

270

255

280

350

310

280

260

260

240

230

22O

210

200

190

190

180

175

165

160

155

150

170

250

180

7,430

240

0.397

0.46

Feb.

160

155

150

145

145

145

150

*170

250

350

550

680

560

450

600

850

650

900

1,350

1,050

740

550

500

460

1,400

5.050

1,900

1,410

1,000

20,470

706

1.17

1.26

Mar.

850

1,470

2,120

1,860

1,590

6,670

9,750

14.800

10,400

5,600

4,180

3,740

2,970

2,620

*2 , 130

1,810

1,530

1,350

1,170

997

904

904

904

966

856

865

884

966

935

894

865

87,550

2,824

4.68

5.39

Apr.

827

1,316"

3,650

8,730

11.500

7,840

7,540

6,990

4,790

3,850

3,250

2,800

2,460

2,290

2,050

2,21O

2,210

*1,980

1,740

1,490

1,300

1,510

1,210

1,180

1,040

1,020

1,010

956

1,180

1,250

90,775

3,026

5.01

5.59

May

1,180

1,210

1,390

1,240

1,170

1,100

1,580

1,420

1,350

1,380

1,350

1,440

3,000

5.540

2,800

2,290

1,840

1,560

1,350

1,130

956

865

789

699

614

556

523

515

459

*42O

428

40,104

1,294

2.14

2.47

June

631

564

564

639

580

556

525

483

467

467

413

360

331

309

375

390

413

367

516

282

275

261

235

366

475

405

428

405

324

282

12,486

416

0.689

0.77

July

248

268

268

216

405

656

483

405

428

*428

353

331

331

375

360

289

275

255

222

295

655

699

789

639

523

475

659

556

475

405

360

13,106

423

0.700

0.81

1956

Aug.

331

289

255

216

255

1,100

1.510

S46

656

572

475

405

567

428

551

275

248

229

560

555

261

*229

204

343

358

255

255

229

268

295

570

12,528

398

O.659

0.76

Sept.

564

708

648

547

531

515

475

367

324

289

268

268

255

222

216

585

499

475

390

420

397

353

358

560

558

295

282

261

261

248

11,499

583

0.634

0.71

Calendar year 1955: Max 11,900 Mln 28 Mean 745 Cfsro 1.25 In. 16.95

Water year 1955-56: Max 14,800 Mln 53 Mean 1,095 Cfsm 1.81 In. 24.70

Peak discharge (base, 5.900 efs).--Oct. 14 (5 p.m.) 19,600 cfs (9.19 ft); Mar. 8 (4 p.m.) 17,600 

cfs (8.83 ft); Apr. 5 (1 a.m.) 12,900 cfs (7.58 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 11 to Feb. 25, Feb. 29, Mar. 1.
SUSQUEHANNA RIVER BASIN 395

Blockhouse Creek near English Center, Pa.

Location. Lat 41°28'30", long 77°13'50", on right bank just dovmstream from bridge on 

State Highway 284, 0.7 mile upstream from Black Creek, 1.7 miles upstream from confluence with Texas Creek, and 5 miles northeast of English Center, Lycomlng County.

Drainage area. 37.7 sq ml.

Records available.--November 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 1,041.85 ft above mean sea level, datum of 

^1929.

Average discharge. 15 years (1941-56), 59.6 cfs.

Extremes. Maximum discharge during year, 3,830 cfs Oct. 14 (gage height, 7.67 ft), from 

rating curve extended above 920 cfs as explained below; minimum, 6.6 cfs July 1, but 

may have been less during period of Ice effect.

1940-56: Maximum discharge, 5,480 cfs May 27, 1946 (gage height, 8.81 ft), from 

rating curve extended above 920 cfs on basis of contracted-opening determination of 

peak flow; minimum, 0.6 cfs July 23, 24, 1955 (gage height, 0.86 ft).

Maximum stage known, 9.0 ft Mar. 18, 1936, from floodmark (discharge, 5,780 cfs), 

from rating curve extended above 920 cfs as explained above.

Remarks. Records good except those for periods of ice effect, which are fair.

Revisions (water years). WSP 951: 1941. WSP 1031: 1942-44(M).

Rating tables, water year 1955-56, except periods of ioe effect (gage 

height, in feet, and discharge, in cubic feet per second)

Nov. 1 to Sept. 30

1.15

1.2

1.3 

1.6 

2.0

6.0

7.9

13

37

77

2.5 

3.0 

3.5 

4.0 

6.1

155

277

446

695

2,130

1.2

1.3

1.4 

1.8 

2.2

7.3

12

18

53

107

2.6 

3.0 

3.5 

4.2

189

297

477

815

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

11

9.6

8.3

7.9

7.5

36

39

66

47

39

32

28

26

2 . ^20

*983

419

326

221

157

119

98

81

66

74

76

62

53

49

47

133 

142

5,583.3

180

4.77

5.51

Nov.

*123

111

99

85

70

61

54

48

44

40

41

41

36

44

38

171

143

121

111

94

84

72

73

78

64

62

60

57

46

45

2,216

73.9

1.96

2.19

Dec.

39

37

37

38

38

*33

31

28

26

24

23

22

21

20

19

18

18

18

17

16

15

15

16

21

19

18

17

16

15

14

13.

702

22.6

0.599

0.69

Jan.

13

13

13

14

*15

14

13

13

13

15

21

li

19

16

15

14

13

13

12

12

11

11

10

9.8

9.6

9.4

9.2

9^0

9.0

11 

13

407.0

13.1

0.347

0.40

Feb.

11

10

10

9.8

9.6

10*~ 9.4

*14

17

23

35

42

36

29

42

58

41

70

100

60

45

38

33

30

65

129

69

58

45

1,148.8

39.6

1.05

1.13

Mar.

ii

146

119

101

139

514

527

809

402

256

201

164

133

*121

101

80

78

74

60

52

48

48

52

60

53

54

62

65

60

47

46

4,734

153

4.06

4.67

Apr.

79

141

332

532

477

349

501

410

297

245

203

173

153

133

118

192

*153

133

111

93

78

80

77

70

62

61

57

55

61

57

5,483

183

4.85

5.41

May

50

53

65

57

56

56

93

73

69

69

63

68

Hi

88

80

78

68

62

55

48

42

38

37

33

30

27

26

26

23 si

23

1,688

54.5

1.45

1.67

June

53

37

49

45

42

39

36

32

31

28

24

21

18

19

19

23

27

18

14

13

12

12

11

11

11

9.3

14

13

9.8

JLJL

699.2

23.3

0.618

0.69

July

,3

9.3

17

10

54

31

22

16

14

*14

13

13

14

14

11

10

9.8

8.9

7.7

26

40

95

127

56

46

52

70

50

40

34

31

963.0

31.1

0.825

0.95

Aug.

27

24

21

18

31

106

97

74

52

45

39

39

41

38

27

22

20

18

33

22

*18

16

13

17

13

12

ii

11

14

11 

19

949

30.6

0.812

0.94

Sept.

38

22

17

14

12

15

19

13

12

11

11

11

9.8

9^3

978

36

28

25

19

33

24

22

22

31

26

22

19

18

17

15

580.9

19.4

0.515

0.57

Calendar year 1955 : Max 2,120 Min 0.6 Mean 52.3 Cfsm 1.39 In. 18.84

Water year 1955-56 : Max 2,120 Min 7.3 Mean 68.7 Cfsm 1.82 In. 24.82

1,320 cfs (5.00 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ioe Dec. 9 to Feb. 19, Feb. 22-25, 29, Mar. 1.
396 SUSQUEHANNA RIVER BASIN

Lycoming Creek near Trout Run, Pa.

Location. Lat 41°25>05", long 77°02'00", on right bank 150 ft upstream from highway 

bridge, 300 ft upstream from Pennsylvania Railroad bridge, 0.5 mile downstream from 

Grays Run, and 2? miles upstream from village of Trout Run, Lycoming County.

Drainage area. 173 sq mi.

Records available. October 1919 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. December 1913 to September 1916, October 1916 to September 1919 (gage heights and discharge measurements only), and October 1919 to September 1941 (water years 1927 and 1930 revised) in reports of Pennsylvania Department of 

Forests and Waters.

1 . Water-stage recorder. Datum of gage is 693.95 ft above mean sea level, datum of 

929. Prior to May 26, 1939, chain gage at site 150 ft downstream at same datum.

Average discharge. 39 years (1914-16, 1919-56), 272 cfs.

Extremes. Maximum discharge during year, 16,800 cfs Oct. 14 (gage height, 16.40 ft), 

from rating curve extended above 9,200 cfs; minimum, 40 cfs July 19 (gage height,

1913-56: Maximum discharge, 21,800 cfs May 27, 1946 (gage height, 19.37 ft), from 

rating curye extended above 9,200 cfs; minimum, 3.2 cfs Sept. 27, 1936; minimum daily, 

4.0 cfs Sept. 19-24, 27, 28, 1936.

Remarks. Records good except those for periods of ice effect, which are fair.

Revisions (water .years) .--WSP 756: Drainage area. WSP 921: 1933, 1934(M), 1935-39. See 

also Records available.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

Oct. 15 to Sept. 30

2.0 

2.3 

2.6

3.0

48

103

198

356

4.0

5.0

7.0

10.1

850

1,510

3,320

7,230

1.7 

2.0 

2.5 

3.0

78

194

373

4.0 

5.0 

7.8

855

1,510

4,180

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

83

77

70

68

.62

286

360

377

307

259

221

191

169

7.170

4,150

2,470

2,470

1,430

950

695

550

446

369

351

424

333

284

249

244 

995

1,270

27,380

883

5.10

5.89

Nov.

*855

670

577

510

420

357

314

277

249

225

228

225

206

246

239

836

828

625

554

478

4 2O

373

357

424

337

306

291

273

225 

210

12,135

404

2.34

2.61

Dec.

191

180

174

183

191

*166

151

136

134

123

114

110

97

92

88

84

84

83

82

80

77

76

78

88

84

80

74

68

64

60

56

3,348

108

O.624

0.72

Jan.

54

54

56

59

59

*58

57

56

56

61

95

~80 101

68

62

58

54

56

51

50

48

48

46

45

44

43

42

41

44

50

54

1,750

56.5

0.327

0.38

Feb.

48

47

46

45

45

45

52 *65

75

108

161

197

164

132

192

259

191

315

39O

303

230

180

155

140

290

514

318

266

213

5,186

179

1.03

1.11

Mar.

191

358

SOS

402

438

1,860

2,180

5.470

1,920

1,260

1,030

855

670

*615

518

433

594

549

506

270

252

256

270

306

270

273

281

295

281

259

21,035

678

5.92

4.52

Apr.

259

428

1,520

2.480

2,360

1,740

2,290

1,750

1,500

1,160

1,03O

882

772

67O

600

988

*800

645

554

464

598

594

590

586

525

514

299

284

288

291

25,861

862

4.98

5.56

May

252

242

518

277

259

239

581

555

295

284

284

299

554

482

420

4O7

565

557

5O6

270

242

222

205

188

169

156

151

151

141

*150

127

8,464

275

1.58

1.82

June

554

256

291

288

245

219

191

172

151

141

127

112

101

93

103

93

91

82

72

65

62

62

58

64

62

57

56

61

57

50

3,816

127

O.754

0.82

July

47

46

62

59

126

127

95

75

67

*62

57

58

61

62

57

50

48

45

41

226

466

440

1,010

428

505

465

1.02O

552

375

273

219

6,998

226

1.31

1.50

Aug.

186

161

154

114

174

549

496

510

232

194

161

151

166

169

130

110

95

88

134

114

*95

84

75

76

78

70

65

62

65

67

2O6

4,811

155

O.896

1.03

Sept.

512

242

180

156

116

156

174

120

105

95

88

84

82

80

IS

201

210

200

141

211

169

146

140

203

158

139

125

116

110

101

4,394

146

0.844

0.94

Calendar year 1955 : Max 7,170 Mln 5.6 Mean 274 Cfsm 1.58 In. 21.54

Water year 1955-56 : Max 7,170 Mln 41 Mean 342 Cfsm 1.98 In. 26. 9O

Peak dlscharKe (base. 2.9OO cfs). Oct. 14 (2 p.m.) 16.8OO cfs (16.40 ft); Oct. 16 (12 p.m.) 3,740

cfs (7.40 ft); Mar. 8 (11:30 a.m.) 4,900 cfs (8.44 ft); Apr. 4 (8:30 p.m.) 3,220 cfs (6.88 ft).

Discharge measurement made on this day. 

Hote. Stage-discharge relation affected by Ice Dec. 14-25, Dec. 26 to Jan. 5, Jan. 9, 15-29, 

Feb. 1-7, 21-25.
SUSQUEHANNA RIVER BASIN 397

Ga

West Branch Susquehanna River at Williamsport, Pa.

Location.--Lat 41°14 | 15", long 76°59'55", on left bank at upstream edge of Market Street 

Bridge at Williamsport, Lycoming County, 350 ft upstream from Hagerraans Run.

Drainage area. 5,682 sq mi.

Records available. March 1895 to December 1913, October 1918 to September 1921, and October 1931 to September 1956 in reports of Geological Survey. March 1895 to September 

1941 in reports of Pennsylvania Department of Forests and Waters.

I

. Water-stage recorder. Datum of gage is 494.98 ft above mean sea level, datum of 

929. Mar. 1, 1895, to Aug. 15, 1901, staff gage and Aug. 16, 1901, to Sept. 30, 1928, 

chain gage, at same site and datum (corrected).

Average discharge.--61 years (1895-1956), 8,888 cfs.

Extremes. Maximum discharge during year, 121,000 cfs Mar. 9 (gage height, 20.37 ft); mln- 

 imurn, 1,170 cfs Oct. 5 (gage height, 0.37 ft).

1895-1956: Maximum discharge, 264,000 cfs Mar. 18, 1P36 (gage height, 33.57 ft, from 

floodmark in gage shelter), from rating curve extended above 210,000 cfs on basis of 

slope-area determination of peak flow; minimum, 162 cfs Sapt. 17, 1943 (gage height, 

-0.57 ft); minimum daily, 250 cfs June 30, July 10, 1912.

Maximum stage known prior to 1895, 32.4 ft June 1, 1889 (discharge, about 252,000 

cfs).

Remarks.--Records good. Some regulation at high flow by First Fork Sinnemahoning Creek 

Reservoir since Jan. 31, 1956 (see p. 440). Some regulation at low flow by mills above 

station.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of loe effect (gage height, In 

feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 18 Nov. 18 to Mar. 9 Mar. 10 to Sept. 30

0.3

1.0

3.0

5.0

9.0

13.0

15.7

1,070

2,140

6,100

11,300

29,800

54,300

75,100

0.7

1.0

2.0

4.0

8.0

13.0

19.4

1,770

2,280

4,240

9,600

25,200

54,300

111,000

12.0

15.2

3,220

4,040

9,130

20,100

47,500

70,900

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

*1,880

1,870 

1,570

1,340 

1.200

1,810

3,010

3,100

5,080

5,430

4,360

3,570

2,920

24,000

75.400

64,600

38,000

25,400

18,500

13,400

10,700

9,000

7,750

7,030

6,560

6,790

6,560

6,100

5,650 

6,730

*10,100

379,410

12,240

2.15

2.48

Nov.

9,000

7,750 

7,270

6,790 

6,330

5,870

*5,540

5,210

4,780

4,570

4,460

4,360

4.260

4,260

4,570

7,440

23,600

50.500

24,800

19,500

15,900

13,600

12,200

12,200

15,100

15,100

13,600

12,600

11,200

9,600

321,960

10, 730

1.89

2.11

Dec.

8.700

7,560 

7,000

6,860 

*7,000

7,560

7,000

6,590

6,330

5,940

5,420

5,060

4,460

4,240

4,130

4,780

3,800

3,400

3,500

3,800

3,100

2,460

2.110

2,550

3,700

4,940

4,700

3,700

3,100 

2 920

3^010

149,420

4,820

0.848

0.98

Jan.

3,400

3,200 

3,300

3,200 

3,300

*3,300

3,100

2,920

2,640

2,550

3,010

5,700

3,700

3,400

2,730

2,460

2,370

2,460

2,210

2,140

2,020

2,040

2,080

2,090

1,860

1.790

1,820

1,860

1,870

2,010 

2,820

81,350

2,624

0.462

0.53

Feb.

2,550

b2.500 

b3,100

b3,400 

b4,100

b5, 300

*b5,000

5,810

9,600

10,200

11,600

15,000

13,000

10,200

9,300

10,800

14,700

14,700

19,500

21,200

17,900

14,400

11,600

9,900

10,800

35, 900

59.800

27,000

21,200

380,060

13,110

2.31

£.49

Mar.

16,700

17,100 

24,300

26,100 

24,300

27,800

53, 600

80,000

111.000

70,600

47,500

36,200

27,800

23,300

*20,100

18,300

17,900

15,100

13,200

11,500

10,600

10 . OOP

10 , 000

11,200

11,800

11,500

11,800

12,600

12 , 900

13*600

811,300

26,170

4.61

5.31

Apr.

13,200

12,900 

15,600

34,600 

60 . OOP

50,800

41,200

45,600

41,200

33,200

27,800

£3,500

20,100

17,500

15,100

14,300

15,100

*14,000

12,900

11,800

11,200

10.600

11,200

12,200

12,200

12,200

11,800

11,200

10 , 600 

11,200

634,600

21,150

3.72

4.15

May

11,200

10,900 

12,200

15,500 

15,900

14,000

15, 900

21,900

£1,900

17,900

17,100

15,900

£2,700

55 . £00

44,900

31,000

£4,300

19,600

16,700

14, 300

1£,600

10,900

10,000

9,130

8,560

7,730

6.950

6,930

6,930 

7,190

*6,930

510,830

16,480

£.90

3.34

June

7,460

10,000 

10 , 900

1£.60Q 

12, £00

11,500

10,300

9,130

8,000

7,460

8,000

6,930

6,040

5,300

5.060

5,780

6,930

7,730

10,000

10,600

8,840

7,460

6,670

6,540

8,000

10,600

9,420

8,840

9,130 

7,460

254,880

8,496

1.50

1.67

July

6,040

5,540 

8,600

22.800

16,300

12,900

11,200

*9,130

8,000

7,730

6,670

6,040

6,160

6,160

5,910

5.500

5,420

6,950

8,840

12,200

15,200

13,200

11,500

9,710

8,560

9,710

9,130

8,280 

7,190

6,160

292,410

9,433

1.66

1.91

Aug.

5,300

4,710 

4,150

5.720 

5,850

8,290

29,800

55.700

30,400

21,900

18,300

14,300

14,300

16,300

13,600

10,600

8,840

7,460

6,930

*7,190

6,930

5,780

5,060

4,710

4,600

4,600

3,940

3,720

3,720 

4 150

5^300

316,130

10,200

1.80

2.07

Sept.

6,670

7.730 

7,460

6,410 

5,540

4,940

6,040

5,300

5,540

4,600

3,940

3,620

3,520

3,420

3,5£0

3,6£0

4,480

5,060

5,060

5,060

4,940

4,600

4,370

4,8£0

4,8£0

4,480

4,150

3,830

3,6£0 

3 3£0

144,480

4,816

0.848

0.95

Calendar year 1955 : Max 75,400 Mln 622 Mean 8,133 Cfsm 1.43 In. 19.45

Water year 1955-56: Max 111,000 Mln 1,200 Mean 11,690 Cfsm 2.06 In. 27.99

Peak discharge (base. 51.000 cfs).--Oct. 15 (7 p.m.) 86,000 cfs (16.86 ft); Mar. 9 (7 a.m.) 

121,000 cfs (£0.37 ft); Apr. 5 (2 p.m.) 63,000 cfs (14.22 ft); May 14 (3:30 p.m.) 60,000 cfs (13.75 

ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.
398 SUSQUEHANNA RIVER BASIN

Loyalsock Creek at Loyalsock, Pa.

Location. Lat 41°19'25", long 76°54'40", on left bank just downstream from highway bridge 

at Loyalsock, Lycoming County, 2.5 miles downstream from Wallis Run and 7.3 miles upstream from mouth.

Drainage area.--443 sq mi.

Records available. October 1931 to September 1956 in reports of Geological Survey. July 

1925 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 585.63 ft above mean sea level (Pennsylvania State highway benchmark).

Average discharge. 31 years (1925-56), 735 cfs.

Extremes.--Maximum discharge during year, 16,200 cfs Oct. 14 (gage height, 8.82 ft), from 

rating curve extended above 10,000 cfs as explained below; minimum, 96 cfs Oct. 5 (gage 

height, 2.73 ft).

1925-56: Maximum discharge, 51,200 cfs Nov. 16, 1926, Nov. 26, 1950, from rating 

curve extended above 10,000 cfs on basis of slope-area determination at gage height 

12.20 ft; maximum gage height, 12.32 ft Nov. 26, 1950; minimum discharge, 12 cfs 

Sept. 26, 1939.

Remarks. Records good except those for periods of ice effect, which are fair.

Revisions (water years).--WSP 756: Drainage area. WSP 871: 1937-38(M). WSP 1051: 

1926(M), 1933(M), 1936(M).

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.7 

3.0 

3.3 

5.6 

4.0

87

196

359

590

1,020

4.5 

5.0 

6.0 

7.5

1,770

2,680

4,880

9,100

Discharge ubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

Oct.

147

132

122

106

99

338

647

521

420

347

293

260

230

8.750

7,410

8,060

6,560

3,500

2,300

1,670

1,280

1,020

856

748

912

856

727

628

60O

2,560

«5,140

57,219

1,846

4.17

4.80

Nov.

2,780

1,960

1,570

1,360

1,100

936

834

738

656

600

609

666

696

1,110

1,290

2,920

5.460

2,250

1,740

1,440

1,220

1,080

972

1,070

924

823

769

706

600

540

37,419

1,247

2.81

3.14

Dec.

500

470

458

466

<489

450

407

359

353

328

287

270

260

250

240

230

220

220

240

230

220

200

190

180

210

250

220

180

160

160

155

8,852

286

0.646

0.74

Jan.

150

145

140

145

150

160

170

140

*125

120

150

250

210

185

170

160

155

150

140

130

125

130

140

130

120

115

110

105

100

105

130

4,455

144

0.325

0.37

Feb.

150

130

130

120

130

150

*195

320

380

540

748

1,060

984

716

861

1,160

878

1,270

1,670

1,260

948

720

620

540

1,100

2,150

1,460

1,180

867

22,437

774

1.75

1.88

Mar.

780

961

1,490

1,340

1,230

3,120

4,280

8,180

5,240

3,230

2,490

2,210

1,750

1,550

1,350

*1,14O

996

996

845

706

656

656

727

878

758

780

758

769

758

727

727

52,078

1,680

3.79

4.37

Apr.

727

1,070"

2,010

4,200

4,460

3,080

3,500

3,290

2,490

2,580

2,580

2,400

2,140

1,770

1,500

,760

,940

* ,460

,220

,030

900

889

936

1,050

924

889

900

854

812

867

54 , 008

1,800

4.06

4.53

May

780

727

900

854

780

727

1,100

1,050

867

801

758

758

1.110

1,110

912

856

812

748

716

638

573

513

475

455

400

366

353

359

335

298

*510

21,579

690

1.56

1.79

June

<831

854

900

912

716

600

550

473

407

386

353

316

282

255

302

347

293

260

215

192

183

179

175

662

460

287

234

201

179

154

12,118

404

0.912

1.02

July

145

132

140

150

250

206

541

255

*210

196

179

147

158

167

175

171

140

122 "115

649

2,100

1,640

2,200

1,550

1,110

1,010

2.490

1,490

972

706

556

19,870

641

1.45

1.67

Aug.

458

393

328

282

328

657

882

564

415

559

304

266

510

341

287

239

206

206

234

*225

*215

188

158

158

154

140

125

T25

129

136

1,140

9,930

320

0.722

0.85

Sept.

1,160

780

590

442

353

375

1,190

597

455

555

510

293

260

249

250

354

600

609

458

702

727

556

496

1,790

1,190

758

590

521

466

427

17,869

596

1.35

1.50

Calendar year 1955: Max 8,730 Min 26 Mean 698 Cfsm 1.58 In. 21.39

Water year 1955-56: Max 8,730 Min 99 Mean 868 Cfsm 1.96 In. 26.64

Peak discharge (base, 6,400 cfs).--Oct. 14 (12:30 p.m.) 16,200 cfs (8.82 ft); Mar. 8 (5 p.m.) 

11,300 cfs (7.79 ft).

* Discharge measurement made on this day.

Hote.--Stage-discharge relation affected by ice Dec. 12 to Feb. 9, Feb. 22-25 (no gage-height record Dec. 16-20, 28-50; fragmentary gage-height record Dec. 21, 31).
SUSQUEHANNA RIVER BASIN 399

Muncy Creek near Sonestown, Pa.

Location. Lat 41°21'25", long 76°32'05", on right bank 150 ft downstream from Slip Run, 

185 ft downstream from bridge on State Highway 464, and 1.2 miles east of Sonestown, 

Sullivan County.

Drainage area. --23. 8 sq ml.

Records available. October 1940 to September 1956.

ge. Water-stage recorder. Datum of gage Is 1,025.01 ft above mean sea level, datum of

Average discharge. --16 years, 47.9 cfs.

Extremes. Maximum discharge during year, 1,460 cfs Oct. 14 (gage height, 5.39 ft); mlnlmum dally, 4.0 cfs Jan. 28, 29.

1940-56: Maximum discharge, 7,310 cfs Mar. 11, 1952 (gage height, 8.61 ft), from 

rating curve extended above 3,400 cfs; minimum, 0.8 cfs Aug. 31, Sept. 1, 1953. 

Flood In March 1936 reached a stage of about 9.3 ft.

Remarks . Records good except those for periods of ice effect, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge. In cubic feet per second)

Oct. 15 to Sept. 3O

1.9 

£.0 

2.1 

2.3

5.0 

8.3

13

30

2.7 

3.0

3.5 

4.1

75

129

289

585

1.8

1.9

2.0 

2.2 

2.5

3.6

6.0

9.5

21

48

£.8 

3.2 

3.7 

4.1

90

182

376

585

Discharge, In cubic feet per second, water year October'1955 to September 1956

Day

1

2

3 

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

.Cfsm

In.

Oct.

6.7

6.5

5.9 

5.3

5.0

45

37

31

25

20

17

15

13

541

273

470

342

160

101

71

58

46

42

42

45

36

34

*31

34

236

224

3,024.4

97.6

4.10

4.73

Nov.

125

90

76 

66

54

46

43

39

35

34

36

41

44

76

59

169

162

104

85

70

60

53

53

52

44

41

38

37

32

26

1,892

63.1

2.65

2.96

Dec.

25

24

24 

25

.26

*23

21

19

19

16

17

16

15

14

13

12

11

11

13

11

9.0

8.0

7.0

7.0

9.0

13

10

6.0

6.5

6.0

5.5

446. 0

14.4

0.605

0.70

Jan.

5.0

4.6

*4.6 

5.0

6.0

8.0

7.0

6.0

5.5

5.5

7.0

12

TT

10

10

9.5

9.0

6.5

8.0

7.0

6.5

6.5

7.0

6.0

5.5

5.0

4.5

4.0

T7o

4.5

7.O

210.1

6.76

0.285

O.33

Feb,

5.5

5 O

575

7.0

9.0

12

23

20

21

*31

37

76

46

4O

58

53

44

79

64

54

45

40

35

35

150

1O1

74

61

56

1,269.0

43/.6

1.84

1.96

Mar.

50

54

61 

6O

66

114

154

579

221

136

108

*95

82

76

67

59

54

50

43

42

40

38

35

54

46

41

4O

42

41

39

36

2,626

64.8

3.56

4.11

Apr.

40

48

96

19E

14E

198

154

118

125

127

116

101

68

62

*136

105

87

73

61

55

56

59

56

52

61

58

56

74

60

2,699

96.6

4.06

4.53

May

67

76

64

73

64

62

105

73

66

60

54

53

70

58

50

53

46

46

43

39

35

32

31

26

25

23

24

*23

20

18

21

1,526

49.3

2.07

2.39l

June

34

27

II

26

24

22

20

18

16

16

13

13

12

12

12

11

9.5

8.4

7.6

6.4

8.7

13

33

12

6.7

9.5

8.0

7.0

6.0

461.6

16.1

O.676

0.75

July

5.5

9.6

7.3 

6.0

26

15

11

6.4

7.6

7.0

6.3

*6.0

7.0

12

8.0

6.3

5.7

5.0

575

29

61

37

57

36

4O

51

"59 114

42

34

26

750.7

24.2

1.02

1.17

Aug.

23

19

15 

14

24

40

12

21

17

15

12

12

13

13

11

10

9.1

9.5

15

11

8.7

7.6

*6.6

7.0

6.0

5.7

5.5

5.7

9.5

6.3

14

416.2

13.5

O.567

O.65

Sept.

23

14

IE 

9.5

8.4

95

57

34

26

22

20

18

16

14

16

30

3O

30

26

72

44

36

131

229

101

70

55

45

40

35

1,360.9

45.4

1.91

2.13

Calendar year 1955: Max 541 Mln 1.0 Mean 4O.7 Cfsm 1.71 In. 23.22

Water year 1955-56: Max 579 Mln 4.0 Mean 46.2 Cfsm 1.94 In. 26.43

Peak discharge (base. 1.100 ef3J.--Oct. 14 (10 a.m.) 1,460 cfs (5.39 ft). 

* Discharge measurement made on this day. 

Note^.--Stage-discharge relation affected by Ice Nov. 29 to Dec. 4, Dec. 7 to Feb. 11, Feb. 22-E5, 

Mar. 1, 2, 16-23, 25-27.
400 SUSQUEHANNA RIVER BASIN

West Branch Susquehanna River at Lewisburg, Pa.

Location.--Lat 40°58'05", long 76°52'25", on left bank at downstream side of left abutment 

of Market Street Bridge at Lewisburg, Union County, 0.2 mile downstream from Buffalo 

Creek and 7.4 miles upstream from mouth.

Drainage area.--6.847 sq mi.

Records available. December 1939 to September 1956 in reports of Geological Survey. September 1913 to August 1923 (gage heights only) and December 1939 to September 1941 in 

reports of Pennsylvania Department of Forests and Waters.

Gage.- Water-stage recorder. Datum of gage is 428.20 ft above mean sea level, datum of 

1929. Sept. 21, 1913, to Sept. 30, 1919, staff gage, Oct. 1, 1919, to Aug. 31, 1923, 

chain gage, and Dec. 7, 1939, to July 2, 1940, wire-weight gage, all at same site and 

datum. Since Oct. 1, 1942, water-stage recorder for station on Susquehanna River at 

Sunbury used as an auxiliary gage for this station.

Average discharge.--16 years (1940-56), 10,980 cfs.

Extremes. Maximum discharge during year, 121,000 cfs Mar. 9 (gage height, 19.80 ft); minimum, 1,530 cfs Oct. 5, 6 (gage height, 1.48 ft).

1913-23, 1939-56: Maximum discharge, 262,000 cfs May 29, 1946 (gage height, 28.43 

ft); minimum not determined.

Maximum stage known, 32.1 ft Mar. 19, 1936, from floodmarks (discharge, 287,000 cfs, 

from slope-area determination at Watsontown).

Remarks. Records excellent except those for period of ice effect, which are fair. Some 

regulation at high flow by First Fork Sinnemahoning Creek Reservoir since Jan. 31, 1956 

(see p. 440). Records of chemical analyses and water temperatures for the water year 

1956 are given in WSP 1450.

Rating tables, water year 1955-56, except period of ice effect (gage

height, In feet, and discharge, In cubic feet per second) 

(Backwater from Susquehanna River Oct. 15-19, Mar. 7-13, Apr. 5-12)

Oct. 17 to Sept. 30

1.5 1,560

2.0 2,580

3.0 5,530

5.0 13,000

8.0 28,400

16.1 86,900

1.7 1,930

2.0 2,580

3.0 5,530

6.0 16,800

10.0 40,000

19.4 117,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2,340 

2,240

2,070

1,760

1.580

1,860

5,070

4,750

4,980

7,210

5,790

4,820

*3,940

21,600

79,100

86,500

56,800

37,400

27,200

20,600

15,900

13,000

11,100

9,790

9,200

9,230

9,050

8,420

7,900

9,160

16,700

497,070

16,030

2.34

2.70

Nov.

15,600 

12,700

11,000

10,200

9,340

8,560

7,900

7,410

6,870

6,390

6,500

6,500

6,290

6,090

6,730

10,800

26,500

57,200

31,800

24,400

19,800

16,600

*14,500

13,900

15,800

16,700

15,600

14,400

13,000

11,500

410,580

13,690

2.00

2.23

Dec.

10.500 

9,30O

8,550

8,230

8,180

8,560

8,420

7,860

7,480

7,140

6,560

6,220

5,750

5,200

4,910

4,100

5,170

4,190

4,280

4,600

5,700

2,900

2,500

5,000

4,500

6,000

5,600

4,600

5,700

5,500

5,600

178,550

5,760

0.841

0.97

Jan.

4,100 

5,800

4,000

5,900

4,000

4,000

5,700

5,500

5,200

5,100

5,600

4.400

4,400

4,100

3,200

2,900

2,800

2,900

2,700

2,600

2,400

2,500

2,500

2,550

*2,200

2.100

2,200

2,200

2,200

2,400

3,300

97,450

3,144

0.459

0.55

Feb.

3,100 

5, OOP

3,800

4,200

4,500

6,500

6,200

7,000

11,500

12,500

14,300

19,300

16,700

13,200

11,600

12,800

14,800

18,000

22,000

24,000

20,800

16,600

13,700

11,700

11,800

27,900

47 , OOP

35,200

*24,800

436,500

15,050

2.20

2.37

Mar.

19,400 

18.OOO

22,400

30.2OO

26,900

27,8OO

53,600

80,700

116,000

91,200

61,200

46,800

35,200

29,100

25,400

22,000

21,600

18,800

16,200

14,400

15,300

12,800

12,800

14,000

15,200

15,600

15,400

15,100

15,500

15,500

15,500

937,600

30,250

4.42

5.09

Apr.

16,000 

15 , 000

*16,20P

29,400

62,700

62,300

48 , 600

55,400

51,100

42,500

54,600

29,400

26 , 000

22,400

19,400

17,800

18,400

17,700

16,100

14,500

13,700

12,900

13,200

14,300

14,600

14,400

14,000

13,600

15,000

15,600

750,600

25,020

3.65

4.08

May

13,400 

13,200

14,200

17,000

18,400

16,800

18,400

23,200

26,100

21,800

19,700

18,600

21,700

46,200

*52,500

36,700

28,400

22,900

19,600

16,900

15,000

13,100

11,800

10,900

10,200

9,300

8,560

8,360

8,360

8,460

8.280

577,820

18,640

2.72

3.14

June

8,560 

10,700

12,400

15,60P

15,900

13,000

12,000

10,700

9,48P

8,700

8,880

8,670

7,550

6,600

6,060

6,500

7,110

8,600

9,540

11,700

10,800

9,060

7,900

7,430

8,040

11,000

10,800

*9,510

10,000

8,810

287,050

9,568

1.40

1.56

July

7,24P 

6,59P

6,650

20,500

20.800

17, SOP

15,100

12,800

10,7PP

9,200

8,810

7,970

6,940

7,280

7,55P

6,940

6,500

5.890

7,380

8,840

15,000

17,1PO

15,600

15,700

12,300

11,500

12,900

12,100

10,700

9,200

8,040

541,000

11,000

1.61

1.85

Aug.

6,970 

6,160

5,550

4,880

4,850

7,120

23,700

54.100

*54,POO

25,400

20,600

16,800

14,400

17,600

15,500

12,600

IP, 500

8,920

8,080

7,860

8,560

7,070

6,160

5,660

5,270

5,500

4,910

4,400

4,250

4,590

5,790

347,550

11,210

1.64

1.89

Sept.

7,620 

9,540

8,670

7,940

6,750

6,120

7,010

7,010

6,260

5,930

4,880

4,370

4,160

4,060

4,130

4,190

5,140

*5,950

5,890

6,060

6,190

5,700

5,270

5,860

6,870

5,830

5,170

4,850

4,440

4,100

175,920

5,864

0.856

0.96

Calendar year 1955: Max 86,500 Mln 810 Mean 10,040 cfsm 1.47 In. 19.90

Water year 1955-56: Max 116,000 Mln 1,580 Mean 13,760 Cfsm 2.01 In. 27.37

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 20 to Feb. IP.
SUSQUEHANNA RIVER BASIN 401

Susquehanna River at Sunbury, Pa.

Location. Lat 40°51 I 10", long 76°48 I 10", on left bank 50 ft downstream from highway 

bridge at Sunbury, Northumberland County, 0.7 mile upstream from Shamokin Creek, and 

If miles downstream from West Branch Susquehanna River.

Drainage area.--18.300 sq mi, approximately.

Records available. October 1937 to September 1956 in reports of Geological Survey. June 

1918 to September 1937 (gage heights only) and October 1937 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

?

. Water-stage recorder. Datum of gage is 419.66 ft above mean sea level, datum of 

929. June 24, 1918, to Sept. 3, 1919, staff gage, Sept. 4 to December 1919, waterstage recorder, December 1919 to July 1920, staff gage, July 1920 to February 1922, 

water-stage recorder, and February 1922 to Sept. 30, 1923, staff gage, all at site 3,700 

ft upstream at datum 1.00 ft higher. Oct. 1, 1923, to Nov. 20, 1934, staff or chain 

gage at site 3,700 ft upstream at present datum. Nov. 21, 1934, to Dec. 12, 1937, 

wire-weight gage at present site and datum.

Average discharge. 19 years (1937-56), 26,420 cfs.

Extremes. Maximum discharge during year, 303,000 cfs Mar. 9 (gage height 17.54 ft); minimum, 4,700 cfs Oct. 5, 6 (gage height, 1.00 ft).

1918-56: Maximum discharge, 556,000 cfs Mar. 19, 1936 (gage height, 26.85 ft, from 

floodmark), from rating curve extended above 430,000 cfs: minimum, 1,220 cfs Sept. 25 

26, 27, 1939 (gage height, 0.23 ft).

Maximum stage known prior to 1918, 22.5 ft in March 1865.

Remarks.--Records good except those for periods of ice effect, which are fair. 

Revisions (water years). WSP 891: 1936(M).

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 9 Mar. 10 to Sept. 30

1.0 4,700

2.0 13,100

3.0 24,900

8.0 

16.7

102,000

283,000

1.2 6,050

2.0 13,300

4.0 38,800

8.0 

16.1

102,000

268,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

IB

19

20

21

22

23 

24

25

26

27

28 

29

30 

31

Tota]

Mean

Cfsm

In.

Oct.

6,290

6,210

6,450

5,630

4.960

5,020

10,900

16,100

15,200 

19,700

20,200

17,100

14,100

31,400

104,000

206,000

235,000

173,000

111,000

79,900

60,800

47,600

38,800 

32,400

28,900

27,500

27,300

*27,200 

25,200

26,600

49,500

1,479,960

47,740

2.61

3.01

Nov.

77,100

71,500

55,400

*45,100

38,700

34,200

31,500

29,000

25,700 

23,500

22,700

23,000

22,700

22,600

27,700

40,600

79,900

109,000

88,200

66,400

54,000

*46,600

41,200 

38,100

38,500

40,800

37,800

34,300 

31,100

28 , 000

*1,324.9

44,160

2.41

2.69

Dec.

25,400

22,700

21,000

20,100

19,700

21,400

30,400

30,500

26,500 

23,300

21,400

19,000

17,000

15,500

14,500

13,000

12,500

12,000

11,500

10,000

8,800

8,000

7,000 

7,200

8,000

11,000

12,000

13,500 

14,000

13 , 000

11,000

500,900

16,160

0.883

1.02

Jan.

10,500

9,600

10,000

9,600

10,400

10,400

10,000

10,300

8,600 

8,400

9,490

9,850

13,600

19,800

21,000

18 , 900

16 , 500

15,000

13 , 500

11,500

11,000

10,000

9,400 

9,200

9,200

8,400

7,800

7,700 

7,800

8,000

10,000

345,440

11,140

0.609

0.70

Feb.

10,000

9,670

9,400

11,300

9,850

12,700

14 , 900

*17,700

21,100 

27,500

29,600

41,200

39,600

34,900

32,100

32,900

34,700

39,200

48,600

52,600

*49,200

40,900

33,600 

27,300

24,400

43,100

81,400

73,200 

*57,800

960,420

33,120

1.81

1.95

Mar.

45,500

39,900

43,700

60,000

66,200

65,900

112,000

192,000

«281 , 000

266,000

181,000

131,000

107,000

90,400

77,200

67,800

61,400

53,000

45,000

40,900

38,000

35,400

34.500

37^800

37 , 100

36,400

35,400 

36,300

36,800

35,700

*2,426.4

78,270

4.28

4.93

Apr.

36,600

35,900

39,900

*63,800

137,000

188,000

174,000

171,000

174,000 

148,000

124,000

109,000

93,700

83,000

75,000

68 , 900

68,600

75,000

75,800

68,100

58,800

52,000

47,800 

48,800

50,800

49,100

45,400

43,000 

42,000

46,200

* 2,493. 2

83,110

4.54

5.07

May

50,600

51,800

52,600

51,400

49,800

44,700

47,000

51,600

53,600 

46,200

41,200

38,400

41 , 300

67,400

*B 1.500,

61,700

49,600

42,300

38,800

35,700

32,800

29,000

26,500 

24,400

22,600

20,700

19,500

19,100 

18,600

17 ,6QC

17,800

H.245.8

40,190

2.20

2.53

June

18,000

22,200

27,700

56.000

36,000

33,800

30,700

26,900

23,200 

20,700

19,500

18,900

16,700

15,200

14,100

13,400

13,700

15,400

15,900

18,200

17,800

15,500

13,300 

12.800

14,100

16,000

16,500

15,500 

* 15, 000

13,400

586,600

19,550

1.07

1.19

July

11,400

10,400

10,600

15 , 600

29,100

24,900

22,400

19,700

19,000 

17,000

15,300

14,100

13,100

12,800

13 , 600

12,800

12,300

11,300

11,800

13,200

21,400

27,200

27,200 

30.400

27,900

26,800

27,700

26,000 

23,200

18,900

15,900

583,000

18,810

1.03

1.18

Aug.

13,400

11,800

10,400

9,220

8,950

11,300

27,300

39,800

*59.900 

31,800

25,800

22,200

18,800

21,800

20,400

17,200

14,400

12,200

11,100

10,700

11,200

10,200

8,860 

7,990

7,490

7,410

7,090

6.450 

6,450

6,850

7,740

466,200

15,040

0.822

0.95

Sept.

12,400

17 , 200

15,900

15,900

14,300

13,400

15,100

14,400

12,000 

10,800

9,220

8,240

7,650

7,330

7 , 250

7,330

8,160

10,100

*13,100

16,600

17,300

16,300

15,000 

15,600

20,100

18,400

20.500

18,900 

15,800

13,300

407,380

13,580

0,742

0.85

Calendar year 1955: Max 235,000 Min 1,800 Mean 26,160 Cfsm 1.43 In. 19.41

Water year 1955-56: Max 281,000 Min 4,960 Mean 35,030 Cfsm 1.91 In. 26.05

* Discharge measurement made on this day.

* Expressed In thousands.

Hote. Stage-discharge relation affected by ice Dec. 12 to Jan. 10, Jan. 18 to Feb. 1.
402 SUSQUEHANNA RIVER BASIN 

Shamokin Creek at Weigh Scale, Pa.

Location. Lat 40°48'30", long 76 "35 '05", on right bank at Weigh Scale, Northumberland 

 County, 1 mile downstream from Trout Run and 2 miles northwest of Shamokin.

Drainage area. --54. 2 sq mi.

Records available . November 1939 to September 1956.

Gage Water-stage recorder. Datum of gage is 608.28 ft above mean sea level, datum of 

~

3.71 ft), from

Average discharge .--16 years (1940-56), 90.3 cfs.

Extremes. Maximum discharge during year, 1,570 cfs July 26 (gage height, 3.71 ft) 

 rating curve extended above 460 cfs; minimum, 20 cfs Jan. 24 (gage height, 0.59 

minimum daily, 37 cfs Jan. 27. ...,., 

1939-56: Maximum discharge, 2,590 cfs Nov. 9, 1943, from rating curve extended 

above 600 cfs; maximum gage height, 4.74 ft Nov. 8, 1943; minimum discharge, 3.2 cfs 

Feb. 15, 1940 (gage height, 0.42 ft); minimum daily, 9.8 cfs Jan. 5, 1947.

Remarks . Records good. Regulation by mine pumps above station.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1-14 Oct. 14 to Sept. 30

36 1.8

73 2.0

93 1.4 133

Discharge, in cubic feet per second, water year October 1955 to September 1956

0.8

1.0 

1.2

0.8

1.1 

1.4

264

359

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

57

57

48

47

47

82

59

82

67

58

57

57

*52

*311

117

160

1S4

133

115

104

96

90

90

*83

80

80

76

76

84

152

134

2,905

93.7

1.73

1.99

Nov.

128

104

101

98

98

98

90

90

77

80

93

96

92

79

78

217

T6T

143

162

151

*123

113

109

122

96

108

104

*80

76

96

3,263

109

2.01

2.24

Dec.

82

73

9490"

75

64

57

68

64

68

63

54

52

51

55

55

56

51

52

*51

48

47

56

62

67

48

41

51

50

56

61

1,862

60.1

1.11

1.28

Jan.

60

61

48

46

50

*51

51

60

64

IT

53

51

54

62

64

44

43

43

45

55

60

58

41

42

*38

40

37

4?

56

57

43

1,580

51.0

0.941

1.08

Feb.

45

52

60

68

75

*73

75

69

63

65

96

122

82

69

73

71

68

126

117

90

85

80

80

82

93

76

75

83

78

2,291

79.0

1.46

1.57

Mar.

*68

77

83

92

73

75

77

130

117

113

128

*99

101

122

106

104

110

119

95

97

95

89

87

131

12T

97.

101

95

93

115

119

3,130

101

1.86

2.15

Apr.

115

89

*83

89

88

87

119

143

122

128

123

124

119

127

143

132

116

109

*102

95

103

115

113

97

91

93

86

96

110

102

3,259

109

2.01

2.24

Hay

96

101

109

108

112

134

127

114

112

111

110

108

153

*110

104

104

99

99

98

106

86

78

109

86

79

89

102

*81

74

86

72

3,157

102

1.88

2.17

June

108

115

145

TOO

108

101

102

97

105

145

101

91

84

81

90

84

94

63

63

60

70

63

84

106

63

62

96

*76

62

§1

2,676

89.2

1.65

1.84

July

S9~ 67

99

214

T43

132

122

118

*185

133

114

109

109

104

122

96

95

91

93

98

129

115

88

90

90

171

136

108

122

94

90

3,546

114

2. 10

2.43

Aug.

89

85

80

85

152

130

108

*94

104

92

88

95

102

104

112

94

90

101

99

85

104

85

85

*80

100

100

75

83

75

lit

2,954

95.3

1.76

2.03

Sept.

199

1ST

119

93

84

110

100

100

108

90

90

92

90

83

106

98

91

*70

66

65

62

85

141

118

90

87

90

92

94

, 96

2,945

98.2

1.81

2.02

Calendar year 1955: Max 464 Hin 2O Mean 68.4 Cfsm 1.26 In. 17.13

Water year 1955-56: Max 311 Hin 37 Mean 91.7 Cfsm 1.69 Jn. 23.04

Peak discharge (base, 700 cfs).--Oct. 14 (8 a.m.) 772 cfs (2.66 ft); June 10 (4:30 p.m.) 772 cfs 

(2.66 ft); July 4 (4 p.m.) 884 cfs (2.82 ft); July 26 (6 p.m.) 1,570 cfs (3.71 ft); Aug. 31 (10 p.m.) 

856 cfs (2.78 ft); Sept. 23 (7 p.m.) 1,360 cfs (3.45 ft).

* Discharge measurement made on this day.
SUSQUEHANNA RIVER BASIN 403

Perm Creek at Penns Creek, Pa.

Location. Lat 40°52 I 00", long 77°02'55", on left bank 200 ft downstream from bridge on 

State Highway 104 and three-quarters of a mile northeast of Penns Creek, Snyder County.

Drainage area. 301 sq mi.

Records available. October 1931 to September 1956 in reports of Geological Survey. October 1929 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage.--Water-stage recorder. Datum of gage is 506.72 ft above mean sea level, adjustment 

of 1912. Prior to Feb. 1, 1930, chain gage at same site and datum.

Average discharge. 27 years (1929-56), 422 cfs.

Extremes. Maximum discharge during year, 7,540 cfs Oct. 15 (gage height, 9.30 ft); minimum, 76 cfs Oct. 6; minimum gage height, 1.67 ft July 19.

1929-66: Maximum discharge, 14,900 cfs Sept. 16, 1934 (gage height, 13.00 ft), from 

rating curve extended above 5,600 cfs by logarithmic plotting; minimum, 7.0 cfs Sept. 27, 

1932; minimum daily, 26 cfs Nov. 28-30, 1930.

Remarks.--Records good except those for period of ice effect, which are fair. 

Revisions (water years). WSP 891: 1934(M).

.Rating tables, water year 1955-56, except period of ice effect (gage

height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Aug. 8-31, Sept. 5, 6)

Oct. 1 to Mar. 8 Mar. 9 to Sept. 30

1.7 

2.3 

3.0

71

251

575

4.0 1,280

6.0 3,180

8.0 5,640

1.7 126

2.3 292

3.0 598

4.0 

4.9

1,290

2,090

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

Z 

5

4

5

6

7

8 

9

10

11

1Z

13

14

15

16

17

18

19

20

Zl

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

118

101 

94

86

84

112

138

132 

126

110

107

96

*88

3,750

5.580

2,620

1,780

1,320

1,020

834

708

614

536

495

495

430

386

350

332

372

445

23,459

757

2.51

2.90

Nov.

354

308 

300

296

273

266

255

244 

234

237

284

300

288

270

266

918

1.750

1,240

1,020

880

796

732

*666

666

592

548

526

510

450

460

15,909

530

1.76

1.97

Dec .

396

377 

363

363

359

324

300

284 

281

250

230

210

200

190

175

160

150

145

145

135

*120

115

110

115

150

200

170

150

140

150

140

6,597

213

0.708

0.82

Jan.

130

120 

120

130

145

160

150

130 

120

140

200

230

200

180

170

160

150

140

130

120

120

125

130

120

*110

105

100

97

95 ITO"

700

4,897

158

0.525

0.61

Feb.

500

400 

556" 390

420

460

720

680 

720

900

1,350

1,100

883

495

743

820

624

923

1,250

802

648

520

455

415

680

1.560

690

642

»531

20,651

712

2.57

2.55

Mar.

450

505 

619

614

608

696

915

2.140 

2,040

1,640

1,550

1.130

975

905

905

835

734

681

625

583

562

572

647

905

828

802

796

758

740

734

698

26,972

870

2.89

3.33

Apr.

620

593 

630

*891

975

884

1,440

1,_820 

1,500

1,570

1,210

1.050

940

842

770

758

698

625

567

518

480

522

620

598

522

505

493

480

503

470

25,892

796

2.64

2.95

May

434

452 

562

493

452

452

1.660

1,570 

1,150

975

863

842

1.210

*1,170

1,010

975

856

796

704

630

572

527

562

5S7

475

459

426

426

588

379 *-Q"g

O9O

22,185

716

2.58

2.74

June

567

375 

472

475

392

371

548

328 

306

296

279

259

244

244

256

241

221

253

324

256

262

272

238

296

266

229

218

*201

188

175.

8,652

288

0.957

1.07

July

165

178 

198

241

320

266

232

201 

204

193

183

175

172

175

168

165

168

168

148

275

713

352

383

379

306

287

552

348

404

299

256

8,152

263

0.874

1.01

Aug.

241

226 

212

196

247

531

842 513" 

*400

408

348

328

448

396

324

285

289

269

388

310

506

269

252

221

207

193

183

185

440

328

525

10, 290

332

1.10

1.27

Sept.

782

1.140 

754

572

475

748

1,000

664 

562

493

448

421

388

367

379

396

435

442

*344

344

310

285

285

289

266

247

232

255

241

235

15,789

460

1.53

1.70

Calendar year 1955: Max 5,580 Min 47 Mean 389 Cfsm 1.29 In. 17.58

Water year 1955-56: Max 5,580 Mln 84 Mean 507 Cfsm 1.68 In. 22.92

Peak discharge (base, 5,100 cfs).--Oct. 15 (2 a.m.) 7,540 cfs (9.30 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 10 to Feb. 12.
404 SUSQUEHANNA RIVER BASIN

East Mahantango Creek near Dalmatia, Pa.

Location.--Lat 40°36'40", long 76°54'45", on right bank at highway bridge 2 miles upstream 

from mouth and 3-J- miles south of Dalmatia, Northumberland County.

Drainage area. 162 sq ml.

Records available. October 1931 to September 1956 In reports of Geological Survey. October 1929 to September 1941 In reports of Pennsylvania Department of Forests and Waters.

Gage.--Water-stage recorder. Datum of gage Is 400.50 ft above mean sea Level (Pennsylvania State highway benchmark). Prior to Feb. 11, 1930, chain gage at same site and 

datum.

Average discharge. 27 years (1929-56), 224 cfs.

Extremes. Maximum discharge during year, 3,150 cfs Oct. 14 (gage height, 7.26 ft); mlnlmum dally, 14 cfs Jan. 25.

1929-56: Maximum discharge, 10,600 cfs Aug. 24, 1933 (gage height, 13.66 ft), from 

rating curve extended above 4,000 cfs; minimum, 1.5 cfs Sept. 21, 1932 (gage height, 

0.84 ft).

Remarks. Records good except those for periods of Ice effect, which are fair. Some regulatlon at low flow by mills- above station.

Revisions (water years).--WSP 891: 1933(M).

Rating tables, water year 1955-56, except periods of lee effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 6

1.3

1.7 

2.0 

2.5

148

295

3.0 473

4.0 903

6.0 2,120

7.0 2,900

1.4 

1.7 

2.0

Feb. 7 to Sept. 30

36 2.5

88 3.0

159 4.1

310

510

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

60

59

53

49

46

94

162

180

198

164

138

116

103

*2,850

1,900

928

1,020

808

593

457

368

311

261

237 

234

195

175

156

153 

465

740

13,273

428

2.64

3.05

Nov.

553

430

365

327

280

249

225

204

184

175

277

301

273

261

246

525

830 6~33

497

419

*358

317

283

267 

231

219

204

180

165 

155

9,633

321

1.98

2.21

Dee.

1*0" 145

136

136

130

121

114

110

100

93

87

81

75

70

64

60

58

58

54

*50

46

45

45

50 

65

112

93

80

70 

64

60

2,612

84.3

0.520

0.60

Jan.

55

50

50

55

65

75

65

54

48

55

100

130

115

100

84

76

70

60

52

45

37

35

33

27 

*14

23

22

21

21 

50

200

1,887

60.9

0.376

0.43

Feb.

140

120 130"

230

220

550

9 SO

764

614

404

392

680

428

324

296

286

247

378

566

441

369

296

250

220 

240

300

226

286

314

10,661

368

2.27

2.45

Mar.

*263

270

263

254

229

226

235

386

629

515

420

365

314

396

609

556

488

396

342

303

296

317

384

528 

488

441

373

317

290 

290

260

11,443

369

2.28

2.63

Apr.

229

211

*200

194

192

183

233

380

408

680

624

524

449

388

346

339

300

257

229

208

192

186

226

214 

181

172

170

162 189" 

286

8,552

285

1.76

1.96

May

247

256

4OO

350

321

296

411

332

296

279

263

244

487

 453

365

335

290

270

241

217

197

181

271

259 

181

162

156

162

144 

139

167

8,372

270

1.67

1.92

June

287

263

435

400

350

307

260

229

203

192

236

170

144

134

122

108

99

97

97

§2.

84

97

257

1,060 

310

200

357

257

*189 

154

7,180

239

1.48

1.65

July

136

234

300" 480

254

235

214

181

274

235

208

270

200

203

167

152

181

142

124

132

364

332

235

189 

164

146

162

164

162 

127

112

6,479

209

1.29

1.49

Aug.

103

95

84

78

114

235

314

*226

186

186

149

129

124

139

110

97

82

78

99

86

153

152

120

103 

88

80

7480"

178 

115

90

3,947

127

0.784

0.91

Sept.

86

92

78

60

58

61

90

70

56

51

48

48

45

42

53

72

66

*54

45

50

60

51

51

134 

106

76

68

80

92

2,021

67.4

0.416

0.46

Calendar year 1955: Max 5,690 Mln 8.1 Mean 203 Cfsm 1.25 In. 16.97

Water year 1955-56 : Max 2,850 Mln 14 Mean 235 Cfsm 1.45 In. 19.76

Peak discharge (base, 1,900 efs). Oct. 14 (1O p.m.) 3,150 cfs (7.26 ft); June 24 (3:30 a.m.) 

2,480 efs (6.06 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Nov. 28 to Dec. 1, Dee. 9-25, Dec. 29 to Feb. 

PebT~S3-25.
SUSQUEHANNA RIVER BASIN 405

Frankstown Branch Juniata River at Wllllamsburg, Pa.

Location. Lat 40°27 I 45", long 78°12'00", on left bank 10 ft downstream from highway

 bridge at Williamsburg, Blair County, and 2.5 miles upstream from Clover Creek.

Drainage area.--291 sq mi.

Records available. October 1919 to September 1921 and October 1931 to September 1956 in

 reports of Geological Survey. October 1916 to September 1919 (gage heights and discharge measurements only) and October 1919 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage.--Water-stage recorder. Datum of gage is 831.78 ft above mean sea level (Pennsylva-

 nia Railroad benchmark). Prior to Aug. 14, 1928, chain gage at same site and datum.

Average discharge. 37 years (1919-56), 398 cfs.

Extremes.--Maximum discharge during year, 10.500 cfs Aug. 8 (gage height, 13.23 ft); mini-

 mum, 46 cfs Dec. 28 (gage height, 1.63 ft); minimum daily, 71 cfs Oct. 3, 4.

1916-56: Maximum discharge, 47,600 cfs Mar. 18, 1936 (gage height, 18.58 ft, from 

floodtnark in gage shelter), from rating curve extended above 7,300 cfs on basis of 

slope-area determination of peak flow; minimum, 13 cfs July 24, 1934 (gage height, 

0.97 ft); minimum daily, 31 cfs Dec. 24, 25, 1930.

Maximum stage known, 19.1 ft June 1, 1889, from floodtnark (discharge, about 35,500 

cfs).

Remarks. Records good. Regulation at low flow by mills above station. 

Revisions.--WSP 756: Drainage area.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

1.9 

2.2 

2.5 

3.0 

4.0

71

107

153

268

590

5.0 

7.0 

9.0 

11.Z

1,010

2,240

3,880

6,370

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

CTsm

In.

Oct.

79

74

71

*71

73

88

87

121 

100

80

80

73

74

199

555

211

153

138

130

115

106

103

98

98

110

100

95

93

90

117

120

3,700

119

0.409

0.47

Nov.

106

98

99

108

98

93

92

SB 

89

86

103

110

102

102

*108

860

1,220

542

418

352

325

349

302

355

288

268

252

236

176

7,610

254

0.873

0.97

Dec.

182

TTO

172

180

164

150

136

144 

138

128

112

119

122

107

118

*86

103

110

107

90

87

89

93

104

139

115

88

74

90 

99

88

3,704

119

0.409

0.47

Jan.

88

87

92

95

97

91

90

81 

74

88

122

146

124

101

91

96

97

85

*79

90

93

90

88

79

81

79

79

77

84

1,120 

782

4,566

147

0.505

0.58

Feb.

277

33?

1,170

597

455

741

1,370

977 

1,190

1,270

1,110

1,310

848

642

814

825

720

1,840

1,570

1,080

825

64?

*538

451

1,590

2,260

1,240

1,080

802

28,566

985

3.38

3.65

Mar.

642

660

660

680

642

1,320

3,080

4,860 

3,000

1,650

1,140

870

760

1,350

1,280

1,010

915

802

680

660

680

700

720

825

700

680

625

*590

642 

760

680

34,263

1,105

3.80

4.38

Apr.

590

590

1,790

2,440

1,480

1,080

2,450

2,740 

1,690

1,180

960

802

680

590

538

590

538

502

485

418

399

582

954

870

780

740

680

625

680 

625

29,068

969

3.33

3.71

May

538

*910

2,020

1,240

938

780

925

660 

572

555

520

700

1,150

848

720

700

555

625

502

451

405

383

469

380

313

290

290

290

246 

231

 

19,434

627

2.15

2.48

June

257

238

246

209

189

185

170

162

155

151

136

127

127

*124

170

139

133

175

173

133

171

155

143

166

141

128

153

133

114 

107

4,810

160

0.550

0.61

July

103

W

387

231

193

352

344

224 

204

174

159

144

143

153

134

2,100

1,660

2,000

848

1,780

1,270

960

960

590

485

41S

367

*305

263 

224

204

18,081

583

2.00

2.31

Aug.

189

172

210

200

880

1,400

4,700

6,520 

1,670

1,060

720

572

520

502

399

531

285

240

234

238

519

226

195

185

168

161

157

174

146 

144

170

22, 887

738

2.54

2.92

Sept.

146

143

130

122

118

174

*178

127 

115

113

115

158

122

115

125

174

150

151

126

125

120

105

110

156

120

108

103

106

103

9£

3,855

128

0.440

0.49

Calendar year 1955: Max 4,910 Min 64 Mean 372 Cfsm 1.28 In. 17.36

Water year 1955-56: Max 6,320 Min 71 Mean 493 Cfsm 1.69 In. 23.04

Peak discharge (base, 4,200 cfa).--Mar. 8 (5:50 p.m.) 5,740 cfs (10.67 ft); July 16 (8:50 p.m.) 

5,030 cfa (10.13 ft); Aug. 8 (2:50 a.m.) 10,500 cfs (15.23 ft). 

* Discharge measurement made on thia day.

505690 O - 59 - 27
406 SUSQUEHANNA RIVER BASIN

Little Juniata River at Tipton, Pa.

Location. Lat 40°37'40", long 78°17 T 38", on left bank at Tipton, Blair County, 100 ft 

downstream from bridge on U. S. Highway 220 and 150 ft downstream from Tipton Run.

Drainage area. 93.7 sq mi.

Records available. October 1945 to September 1956.

Gage. Water-stage recorder. Datum of gage is 946.76 ft above mean sea level (Pennsylvania State highway benchmark).

Average discharge. 11 years, 157 cfs.

Extremes. Maximum discharge during year, 4,380 cfs July 2 (gage height, 7.87 ft), from 

rating curve extended above 2,700 cfs by logarithmic plotting; minimum, 14 cfs Oct. 4 

(gage height, 1.12 ft); minimum daily, 15 cfs Oct. 2-4.

1945-56: Maximum discharge, 5,700 cfs Nov. 25, 1950 (gage height, 9.06 ft), from 

rating curve extended above 3,700 cfs by logarithmic plotting; minimum daily, 10 cfs 

Sept. 20, 1949, Oct. 14, 15, 1951.

Remarks. Records good except those for periods of ice effect, which are fair. 

Revisions (water years) . WSP 1202: 1946(P), 1948.

Rating tables, water year 1955-56, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 7 Mar. 8 to Sept. 30

1.1 12

1.4 42

1.7 87

2.0 144

2.5 

3.0 

4.0 

5.0

264

415

850

1,520

1.2 

1.5 

2.0 

2.5

148

268

3.0 415

4.O 850

5.7 2,100

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

16

15

15

 15

17

27

22

57

22

20

19

19

19

207

164

62

47

46

40

34

32

28

28

36

37

30

28

28

28

45

34

1,237

39.9

0.426

0.49

Nov.

30

3O

39

35

30

28

28

28

28

28

34

30

28

36

*33

441

347

185

167

142

146

128

151

174

146

130

120

115

98

87

3,042

101

1.08

1.21

Dec.

80

78

85

87rs

70

60

56

53

49

46

43

40

38

36

34

 35

33

36

35

32

30

30

31

52

38

35

33

32

31

30

1,443

46.5

0.496

0.57

Jan.

30

28

27

27

28

27

25

24

23

24

30

38

33

31

30

30

 25

27

26

25

23

22

22

22

21

21

20

20

21

210

etc OO

1,045

33.7

0.360

0.41

Feb.

55

5T

180

101

138

244

3O4

323

281

312

332

326

237

194

294

270

253

623

402

336

*278

229

197

174

757

468

379

357

284

8,425

291

3.11

3.34

Mar.

248

264

292

366

357

613

1,500

1.700

940

610

468

376

323

457

379

349

309

276

252

240

237

240

240

284

242

242

227

*222

2Tf

289

258

13,047

421

4.49

5.18

Apr.

237

255

772

850

588

468

992

800

565

440

361

309

268

237

224

259

227

205

188

177

170

295

379

332

295

282

250

227

217

205

11,074

369

3.94

4.40

May

179

 331

353

298

258

268

441

323

287

268

234

259

1,520

750

485

395

323

364

295

260

237

210

230

179

155

142

152

144

119

111

107

9,477

306

3.27

3.76

June

140

113

109

96

89

84

79

75

70

66

62

56

 53

56

75

80

94

214

1ST

121

181

133

123

182

170

136

193

144

123

109

3,385

113

1.21

1.34

July

98

2.OBO

957

525

379

349

265

215

191

166

140

123

115

105

93

242

247

201

213

672

340

258

207

179

161

186

144

 129

113

98

69

9,280

299

3.19

3.68

Aug.

82

75

68

64

295

230

730

425

298

263

198

191

179

166

138

121

111

102

93

100

91

75

69

66

57

53

58

54

46

45

4F

4,588

148

1.58

1.82

Sept.

42

4O

33

33

 32

-Jz 162

44

36

33

32

36

32

29

55

57

50

45

33

45

34

32

40

49

29

26

25

. 25

23

53

1,248

41.6

0.444

0.50

Calendar year 1955: Max 1,040 Mln 12 Mean 124 Cfsm 1.32 In. 17.92

Water year 1955-56 : Max 2,080 Mln 15 Mean 184 Cfsm 1.96 In. 26.70

Peak discharge (base, 1,100 cfs). --Feb. 18 (3 p.m.) 1,160 cfs (4.49 ft); Feb. 25 (3 p.m.) 1,960

Apr. 3 (1:30 p.m.) 1,370 cfs (4.82 ft); Apr. 7 

,140 cfs (5.77 ft); July 2 (1 p.m.) 4,380 cfs

Peak discharge base, 1,100 cfs. --Feb. 18 3 p.m. 

cfs (5.56 ft); Mar. 7 (10 a.m.) 2,460 cfs (6.12 ft); 

(6:30 p.m.) 1,520 cfs (4.99 ft)j May 13 (6 a.m.) 2,1 

(7.87 ft); July 20 (2i30 a.m.) 1,560 cfs (5.04 ft).

Discharge measurement made on this day. 

Hote. Stage-discharge relation affected by Ice Nov. 26 to Dec. 2, Dec. 7 to Jan. 29.
SUSQUEHANNA RIVER BASIN 407

South Bald Eagle Creek at Tyrone, Pa.

Location Lat 40°41'00", long 78°14'05", on left bank 0.2 mile upstream from plant of

West Virginia Pulp and Paper Co., at Tyrone, Blalr County, 0.2 mile upstream from Laurel 

Run, and 1.3 miles upstream from mouth.

Drainage area . 44.1 sq ml.

Records available . October 1944 to September 1956.

Gage.--Water-stage recorder. Datum of gage Is 921.80 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Oct. 1, 1944, to Nov. 15, 1950 water-stage 

recorder and Nov. 16, 1950; to Nov. 30, 1952, wire-weight gage and high-water staff 

gage, at site half a mile downstream at datum 17.99 ft lower.

Average discharge. 12 years, 83.8 cfs (adjusted for diversion from October 1950 to November 1952).

Extremes. Maximum discharge during year, 1,630 cfs May 13 (gage height, 4.36 ft): mlnlmum dally, 7.1 cfs Oct. 4.

1944-56: Maximum discharge, 5,140 cfs Nov. 25, 1950 (gage height, 7.5 ft, from 

floodmarks, site and datum then In use), from rating curve extended above 2 100 cfs on 

basis of contracted-opening determination of peak flow; minimum, 2.6 cfs Nov 7, 1953- 

minimum daily, 4.7 cfs Sept. 20, 1949, Nov. 6, 18, 1953, Sept. 7, 13, 14, 1954

Maximum stage known, about 15 ft Mar. 17 or 18, 1936 (site and datum in use prior 

to Dec. 1, 1952).

Remarks. Records good except those for periods of ice effect, which are fair. Prior to 

Oct. 1, 1950, daily discharges were affected by diversion from basin of a small quantity 

?Q.Jf£ei>H fOI> lleo feed ^euP for the We st Virginia Pulp and Paper Co. From Oct. 1, 

1950 to Nov 30, 1952, in addition to effects of above diversion, daily discharges were 

affected by diversion into the basin, by West Virginia Pulp and Paper Co., of water 

from ground-water sources. Daily discharges subsequent to Nov. 30, 1952, are not affected by diversion.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to July

7.1

1.0 

1.3 

1.6

2.0 210

2.5 420

3.0 695

3.5 1,000

0.8

1.0 

1.3

July 3 to Sept. 30

1.6

2.1 

2.6

121

252

470

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

8.0

7.5

7.2 *ld

15

18

65

24

17

15

13

14

382

321

94

66

54

44

40

35

32

29

30

31

27

25

24

24

46

36

1,558.8

50.3

1.14

1.31

Nov.

33

32

38

36

33

32

31

30

30

29

34

30

27

32

*28

398

321

166

125

103

97

88

108

118

110

101

90

82

74

61

2,517

83.9

1.90

2.12

Dec.

55

54

54

55

49

44

42

40

38

37

36

33

30

27

24

*22

21

22

25

24

20

19

20

24

23

21

19

19

Ta" 18 

±o

18

951

30.7

0.696

0.80

Jan.

18

18

18

19

21

20

19

18

17

18

20

22

25

20

19

18

*17

17

17

16

16

16

17

16

15

15

15

14

19

50

80_

650

21.0

0.476

0.55

Feb.

53

65

140

110

105

125

220

210

240

200

155

164

121

94

184

156

129

352

274

207

*153

115

1OO

90

560

299

204

183

136

4,944

170

3.85

4.17

Mar.

116

148

164

210

198

327

598

978

624

370

259

195

158

172

169

151

129

112

99

94

96

101

109

141

116

115

110

*116

118

136

134

6,563

212

4.81

5.53

Apr.

132

148

455

503

375

271

496

445

307

224

175

141

121

104

97

104

90

82

74

70

67

187

234

195

164

143

121

108

97

90

5,820

194

4.40

4.91

May

79

*174

186

148

125

179

584

299

207

180

141

234

851

46O

303

220

169

156

121

101

90

82

84

70

61

56

69

67

54

54

52

5,656

182

4.13

4.77

June

70

60

66

60

56

54

51

48

44

42

39

31

*34

36

36

32

36

74

48

39

42

38

37

53

45

41

51

42

40

36

1,381

46. d

1.04

1.16

July

36

767

350

227

193

170

132

109

96

83

73

63

60

54

48

63

48

44

116

465

230

162

128

105

88

80

73

*64

54

49

44

4,274

138

3.13

3.60

Aug.

42

37

34

33

416

316

331

244

177

151

107

136

128

115

96

83

73

66

60

57

52

44

42

40

35

32

33

31

28

28

28

3,095

99.8

2.26

2.61

Sept.

25

23

21

21

*19

275

97

40

29

25

30

55

31

26

28

63

49

40

36

44

30

27

25

23

21

19

19

18

18

11

1,192

39.7

0.900

1.01

Calendar year 1955: Max 645 Mln 5.1 Mean 68.7 Cfsm 1.56 In. 21.12

Water year 1955-56: Max 978 Mln 7.1 Mean 105 Cfsm 2.38 In. 32.54

Peak discharge (base. 940 cfs). Oct. 14 (8:30 p.m.) 1,100 cfs (3.63 ft); Mar. 8 (9 a.m.) 1,180 

cfs (3.76 ft); May 7 (1:3O a.m.) 940 cfs (3.38 ft); May 13 (12:30 a.m.) 1,630 cfs (4.36 ft); July 2 

(8 a.m.) 1,590 cfs (4.32 ft); Aug. 5 (4:30 a.m.) 1,040 cfs (3.57 ft); Sept. 6 (12 m.) 1,100 cfs 

(3.65 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 7 to Feb. 11, Feb. 22-25.
408 SUSQUEHANNA RIVER BASIN

Little Juniata River at Spruce Creek, Pa.

Location. Lat 40°36'45", long 78°08'35", on right bank 150 ft downstream from Pennsylvania Railroad bridge, 0.5 mile northwest of village of Spruce Creek, Huntingdon County, 

and 0.5 mile upstream from Spruce Creek.

Drainage area. 220 sq mi.

Records available. June 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 751.15 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943.

Average discharge. 18 years, 373 cfs.

Extremes.--Maximum discharge during year, 6,320 cfs July 2 (gage height, 9.67 ft); minimum, 77 cfs Oct. 4, 5 (gage height, 1.67 ft).

1938-56: Maximum discharge, 23,100 cfs Nov. 25, 1950 (gage height, 15.77 ft), from 

rating curve extended above 5,600 cfs on basis of slope-area determination of peak 

flow; maximum gage height, 15.82 ft Nov. 25, 1950 (backwater from unknown cause); minimum discharge, 45 cfs Sept. 26, 1943, Oct. 4, 1949; minimum gage height, 1.41 ft 

Sept. 26, 1943; minimum daily discharge, 58 cfs Oct. 9, 1943.

Maximum stage known, about 19.1 ft Mar. 18, 1936, from floodmarks 175 ft downstream 

(discharge, 39,800 cfs, from rating curve extended above 5,600 cfs on basis of logarithmic plotting above slope-area determination at gage height 15.77 ft).

Remarks. Records good. Some regulation at low flow by mills above station.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Mar. 8 Mar. 9 to Sept. 3O

1.6 

2.0 

2.5 

3.0

135

265

436

5.0 1,340

7.0 2,950

7.5 3,470

1.9 

2.2 

2.5 

3.0

106

169

253

430

5.0 1,340

7.0 2,950

7.9 3,910

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

S3

80

78

*78

78

97

92

191

111

94

89

86

86

577

804

300

215

194

171

153

142

131

125

125

144

125

119

115

113

169

155

5,120

165

0.750

0.87

Nov.

137

133

144

148

133

129

131

142

146

135

129

131

125

125

*127

876

1.060

ST2

463

406

381

360

375

451

392

385

356

336

287

265

8,980

299

1.36

1.52

Dec.

244

232

232

241

224

202

186

184

179

171

159

157

155

144

148

*119

139

144

142

123

115

117

123

133

171

146

121

106

115

121

110

4,903

158

0.718

0.83

Jan.

Ill

108

113

121

119

117

113

102

101

113

131

142

131

113

110

111

*111

106

102

106

108

106

104

99

101

101

97

92

99

506

274

3,968

128

0.582

0.67

Feb.

164

TBO

440

286

283

512

784

760

750

780

747

856

618

513

753

702

650

1,250

1,100

BOO

*700

592

513

432

1.470

1,170

918

850

696

20,269

699

3.18

3.43

Mar.

592

612

675

805

783

1,120

2,360

3.580

2,300

1,520

1,180

940

783

899

895

805

740

654

591

550

550

570

57O

696

612

591

570

*570

591

675

654

28,833

930

4.23

4.87

Apr.

612

654

1,400

1,880

1,430

1,100

1,900

1.920

1,400

1,100

918

783

696

591

546

591

550

485

450

407

370

634

866

761

696

654

591

542

505

481

25,513

850

3.86

4.31

May

430

*639

896

740

654

612

1,350

918

783

740

675

S36

5.840

2,010

1,340

1,080

872

918

740

654

591

542

570

481

419

385

400

392

333

516

25,472

822

3.74

4.31

June

381

337

341

309

292

282

272

259

229

220

215

203

192

*1B7

217

187

226

393

343

250

328

295

275

344

326

279

358

299

259

247

8,345

278

1.26

1.41

July

235

5.500

1,840

.1,130

872

783

633

513

465

415

370

326

292

272

241

420

391

395

302

1,510

828

654

517

434

377

396

348

302

*275

247 

252

19,315

623

2.83

3.27

Aug.

217

209

190

182

827

726

1.520

1,040

740

654

517

521

481

461

385

344

312

292

272

263

275

229

212

206

185

172

174

179

159

157 

159

12,060

389

1.77

2.04

Sept.

150

141

132

126

*124

563

311

182

155

139

134

177

145

145

144

220

185

187

141

159

139

132

128

154

124

115

111

110

110

108

4,891

163

0.741

0.83

Calendar year 1955: Max 2,400 Mln 73 Mean 325 Cfsm 1.48 In. 20.05

Water year 1955-56: Max 3,840 Mln 78 Mean 458 Cfsm 2.08 In. 28.36

Peak discharge (base, 3,000 cfs).--

cfs (8.76 ft)i May 13 (7:30 a.m.; 5,]

Feb. 25 (6 p.m.) 3,580 cfs (7.61 ft); Mar. 8 (10:30 a.m.) 5,000 

30 cfs (8.86 ft); July 2 (11 a.m.) 6,32O cfs (9.67 ft).

* Discharge measurement made on this day.
SUSQUEHANNA RIVER BASIN 409

Juniata River at Huntingdon, Pa.

Location. Lat 40°29'05", long 78 "01'10", on right bank 450 ft downstream from Smithfield 

Bridge at Huntingdon, Huntingdon County, and 0.8 mile upstream from Standing Stone 

Creek.

Drainage area. 816 sq mi.

Records available. September 1941 to September 1956 in reports of Geological Survey. May 

1895 to September 1914, October 1920 to February 1923 (gage heights and discharge measurements only), and September 1941 in reports of Pennsylvania Department of Forests and 

Waters. May 1895 to December 1938 (gage heights only) in reports of U. S. Weather 

Bureau. Prior to October 1950, published as Frankstown Branch Juniata River at 

Huntingdon.

Gage.--Water-stage recorder. Datum of gage is 599.69 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. May 1895 to September 1914 staff gage at site 

1,500 ft downstream at datum 3.95 ft lower. October 1920 to February 1923 chain gage 

at site 450 ft upstream at datum 0.03 ft higher.

Weather Bureau records: May 1895 to April 1931 and March to July 1936, staff gage 

at site 1,500 ft downstream at datum 3.95 ft lower. April 1931 to July 1934 chain 

gage and July 1934 to March 1936, August 1936 to December 1938, wire-weight gage, at 

site 450 ft upstream at datum 0.03 ft higher than present datum.

Average discharge.--33 years (1895-98, 1899-1914, 1941-56), 1,139 cfs.

Extremes. Maximum discharge during year, 11.500 cfs Mar. 8 (gage height, 8.67 ft); minimum, 29 cfs Jan. 14 (gage height, 0.46 ft); minimum daily, 133 cfs Jan. 14.

1895-1938, 1941-56: Maximum discharge, 81,000 cfs Mar. 18, 1936 (gage height, 

21.87 ft, from floodmark), from rating curve extended above 20,000 cfs on basis of 

computation of peak flow over dam; minimum observed, 14 cfs Feb. 8, 1948, Aug 2, 1954- 

minimum gage height observed, 0.27 ft Feb. 8, 1948.

Remarks. Records good. Regulation at low flow by hydroelectric plant above station. 

Records of chemical analyses and water temperatures for the water year 1956 are Riven 

in WSP 1450.

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

0.8

1.1 

1.5 

2.0

116

219

411

730

3.0 

5.0 

8.2

1,610

4,180

10,300

Discharge, In cubic feet per second, water year October 1955 bo September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Cfsm

In.

Oct.

254

230

236

253

*252

266

306

510

42O

254

289

262" 192

701

5.950

1,090

656

570

512

418

424

306

385

367

342

378

519

508 

542

583

458

15,413

497

0.609

0.70

Nov.

341

402

366

533

407

254

351

564

298

418

306

352

358 

*332

386

1,550

5.450

1,720

1,510

1,180

980

1,080

946

1,080

977

891

876

782 

772

630

23,472

782

0.958

1.07

Dec.

640

659

604

640

480

660

504

476

526

460

429

412

452 

*380

400

310

360

400

390

576

312

301

364

335

419

424

546

282 

297

336

444

13,398

432

0.529

0.61

Jan.

326

324

296

316

316

316

144

250

469

330

278

454

450

155

428

500

527

220

*288

260

294

248

504

260

249

255

255

194 

328

1,100

2.240

11,928

385

0.472

0.54

Feb.

750

624

1,480

1,340

872

1,120

5,000

2,150

2,840

5,000

2,600

5,190

2,270 

1,660

1,990

2,240

1,850

5,300

4,O80

2,740

2,180

*1,720

1,460

1,310

3,230

4.710

2,930

2,6OO 

2,060

65,276

2,251

2.76

2.98

Mar.

1,720

1,660

1,780

1,880

1,850

3,800

5,330

10.100

7,270

4,480

3,260

2,600

2,180 

2,450

5,190

2,540

2,360

2,O6O

1,830

1,720

1,720

1,780

1,780

2,000

1,880

1,780

1,720

1.610 

*1,610

1, 880

1, 88O

83,680

2,699

5.31

5.81

Apr.

1,720

1,660

2,880

5,450

3,890

3.O6O

4,570

5,980

4,180

5,260

2,670

2,240

1,880 

1,660

1,560

1,560

1,510

1,360

1,310

1,180

1.120

1,450

2,150

2,060

1,940

1,720

1,660

1,510 

1,510

1,460

70,140

2,338

2.87

3.20

May

*1,310

1,440

5,700

2,670

2,180

1,880

2,880

2,240

1,880

1,720

1,610

1,880

7.150 

4,180

5,000

2,600

2,120

2,120

1,850

1,560

1,410

1,510

1,410

1,560

1,100

1,020

1,010

1,050 

920

864

656

62,240

2,008

2.46

2.84

June

846

888

85?

856

644

640

674

620

657

580

509

»495

558 

497

552

558

496

786

840

632

680

746

556

776

757

636

677

726 

525" 468

19,913

664

0.814

0.91

July

502

4.770

3,280

1,940

1,460

1,360

1,410

1,070

952

872

840

719

704 

651

656

1,500

2,850

2,810

1,560

5,560

2,600

2,000

1,610

1,360

1,180

1,070

*1,010

888 

840

673

686

46,985

1,516

1.86

2.14

Aug.

620

595

625

596

2,110

2,710

4,700

8.000

3,420

2,360

1,780

1,510

1,410 

1,510

1,180

1,040

944

880

848

852

840

826

669

617

607

654

702

621 

550

524

588

44,846

1,447

1.77

2.04

Sepb.

556

556

481

446

*454

850

1.080

576

481

452

446

530

506

452

452

602

582

576

493

487

463

440

434

487

463

411

595

268 

fit olb

14,925

497

0.609

0.68

Calendar year 1955: Max 7,98O Mln 173 Mean 982 Cfsm 1.20 In. 16.54

Water year 1955-56: Max 10,100 Mln 155 Mean 1,290 Cfsm 1.58 In. 21.52

Peak dlscharee (base. 5.500 cfs). Feb. 18 (9:50 p.m.) 5.98O cfs (6.08 ft); Feb. 25 (8:3O p.m.) .

6,920 cfs (6.65 ft); Mar. 8 (4:30 p.m.) 11, 5( 

Apr. 8 (7 a.m.) 6.73O cfs (6.48 ft); May 15

cfs (7.49 ft); Aug. 8 (9:5O a.m.) 9,85O cfs

)0 cfs (8.67 ft); Apr. 4 (2:30 a.m.) 6,54O cfs (6.57 ft)! 

6 a.m.) 9,170 cfs (7.68 ft); July 2 (1:30 p.m.) 8,750

8.01 ft).

* Discharge measurement made on this day.
410 SUSQUEHANNA RIVER BASIN

Standing Stone Creek near Huntingdon, Pa.

Location. Lat 40°31'25", long 77°58'15", on downstream side of left abutment of bridge 

on State Highway 545, 3£ miles northeast of Huntingdon, Huntingdon County, and 

3.5 miles upstream from mouth.

Drainage area. 128 sq ml.

Records available. October 1931 to September 1956 In reports of Geological Survey. October 1929 to September 1941 in reports of Pennsylvania Department of Forests and 

Waters.

Gage. Water-stage recorder. Datum of gage is 617.81 ft above mean sea level, unadjusted. 

Prior to Feb. 4, 1930, chain gage at same site and datum.

Average discharge.--26 years (1930-56), 149 cfs.

Extremes. Maximum discharge during year, 2,230 cfs Mar. 8 (gage height, 6.60 ft); minimum, 

20 cfs Oct. 4, 5, but may have been less during period of ice effect.

1929-56: Maximum discharge, 8,500 cfs Nov. 25, 1950 (gage height, 10.96 ft), from 

rating curve extended above 1,900 cfs; minimum, 2.8 cfs Feb. 11, 1931 (gage height, 

0.64 ft); minimum daily, 7.6 cfs Sept. 12-14, 18-26, 1932.

Flood of June 1, 1889, reached a stage of 9.38 ft, from floodmark (discharge, 6,770 

cfs).

Remarks. Records good except those for periods of ice effect, which are fair. 

Revisions (water years). WSP 781: 1931(M). WSP 951: 1936(M). WSP 1202: 1946-48<M).

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.0 

1.2 

1.6 

2.0

106

188

3.0 

4.0

6.1

456

820

1,890

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

25 

24

*23

22

22

26

36

32 

28

25

23

22

22

355

1.590

306

186

145

119

102

88

81

74

73

76

69

66

61

60

65

73

3,719

120

0.938

1.08

Nov.

65 

58

60

66

60

57

55

54

52

52

66

88

74

71

69

716

939

*355

258

216

193

186

170

188

158

145

137

129

110

119

4,966

166

1.30

1.44

Dec.

112 

93

95

95

90

81

74

74 

73

74

66

71

*65

66

62

60

56

56

60

56

53

50

48

49

60

56

48

44

43

42

42

2,014

65.0

0.508

0.59

Jan.

42

40

39

40

43

40

39

38

36

40

47

54

65

54

52

49

43

38

36

*35

34

34

35

33

32

32

31

31

40

110

220

1,502

48.5

0.379

0.44

Feb.

82 

86

145

130

105

120

350

360 

370

370

360

637

359

238

283

311

233

470

463

322

258

*202

165

145

470

625

322

358

265

8,614

297

2.32

2.50

Mar.

216 

221

252

258

228

302

708

1.890 

1,180

626

456

366

319

381

425

366

319

270

238

228

230

233

235

298

255

233

216

200

*204

233 

242

11,828

382

2.98

3.44

Apr.

211 

209

380

538

380

350

600

540 

450

370

300

250

220

200

180

190

180

162

147

133

123

135

221

213

166

156

151

149

179

153

7,636

255

1.99

2.22

May

133 

229

*503

293

228

202

416

303 

248

233

213

262

1.250

526

355

319

260

275

230

193

175

162

324

268

193

173

173

209

158

145 

151

8,802

284

2.22

2.56

June

145 

151

235

216

170

156

137

125

114

106

95

86

80

76

*71

68

86

115

130

81

114

119

83

317

166

117

114

102

81 

73

3,729

124

0.969

1.08

July

68 

279

156

97

85

90

80

66 

66

61

57

49

52

54

48

57

60

52

46

87

90

68

57

*49

46

49

77

63

50 

42

59

2,240

72.3

0.565

0.65

Aug.

39 

37

54

52

512

244

782

35? 

238

177

157

127

129

282

147

117

122

95

85

81

101

78

68

65

60

55

55

61

54 

50

4,290

138

1.08

1.25

Sept.

69 

88

69

52

54

*79

125

Ts

55

50

49

55

50

48

46

65

61

80

57

54

50

44

48

94

61

49

48

48

48 

46

1,808

60.3

0.471

0.55

Calendar year 1955: Max 1,500 Mln 16 Mean 139 Cfsm 1.09 In. 14.73

Water year 1955-56; Max 1,890 Mln 22 Mean 167 Cfsm 1.30 In. 17.78

Peak dlscharRe (base. 1.60O cfs). Oct. 15 (9 a.m.) 2.O2O cfs (6.55 ft); Mar. 8 (8 p.m.) 2,250 cfs 

6.60 ft)j May 15 (9 a.m.) 1,710 cfs (5.77 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 14 to Feb. 11, Feb. 25-25.
SUSQUEHANNA RIVER BASIN 411

Dunning Creek at Belden, Pa.

Location. Lat 40°04'20", long 78°29 I 35", on left bank 10 ft upstream from covered highway bridge, 0.8 mile southeast of Belden, Bedford County, 3.8 miles north of Bedford, 

and 4.3 miles upstream from mouth.

Drainage area. 172 sq ml.

Records available. May 1939 to September 1956.

;e. Water-stage recorder. Datum of gage is 1,051.16 ft above mean sea level, datum of 

929, supplementary adjustments of 1943 and 1944.

Average discharge. 17 years, 222 cfs.

Extremes. Maximum discharge during year, 4,050 cfs Mar. 8 (gage height, 9.60 ft); minlmum daily, 20 cfs Oct. 4, 5; minimum gage height, 1.36 ft Jan. 14.

1939-56: Maximum discharge, 6,430 cfs Mar. 1, 1954 (gage height, 11.43 ft), from 

rating curve extended above 4,000 cfs; minimum, 5.2 cfs Jan. 8,1954 (gage height, 

0.92 ft), result of freezeup.

Maximum stage known, 17.8 ft Mar. 18, 1936, from floodmarks (backwater from Raystown Branch Juniata River; discharge, about 16,900 cfs).

Remarks. Records good except those for periods of ice effect, which are fair. 

Revisions (water years). WSP 971: 1940(M).

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

24

22

21

20

20

*25

30

32

34

26

25

23

23

43

101

63

53

50

46

42

38

36

34

35

43

44

40

39

42

53 

56

1,183

38.2

0.222

0.26

Nov.

49

45

45

53

48

45

45

44

43

43

50

72

59

62

64

304

602

298

235

186

*182

204

179

204

168

158

142

127

89

96

3,941

131

0.762

0.85

Dec.

91

76

78

89

80

70

57

64

58

52

51

*65

54

52

50

38

38

41

42

37

33

31

34

38

62

76

52

40

33

34 

32

1,648

53.2

0.309

0.36

Jan.

31

30

30

30

31

32

31

30

28

27

35

45

42

40

41

*37

37

35

33

32

33

32

31

29

28

28

27

27

28

1.010 

538

2,488

80.3

0.467

0.54

Feb.

293

546

1,130

519

467

745

958

738

823

893

830

900

580

407

520

500

466

1.550

1,110

794

568

398

320

*210

779

1,050

777

666

480

19,817

683

3.97

4.28

Mar.

384

375

393

416

388

951

1,720

5.520

*1,760

900

614

438

358

876

773

655

530

429

343

318

358

387

392

434

378

*401

328

312

505

509 

429

20,374

657

5.82

4.41

Apr.

565

545

1,570

1,630

898

640

1,770

1.950

1,020

675

500

382

300

250

227

234

199

192

192

173

170

189

282

296

355

452

434

396

343

*300

16,503

550

3.20

3.57

May

242

380

895

695

491

378

791

509

401

343

287

351

573

392

305

363

254

274

224

199

186

170

192

153

128

115

255

292

216

192 

173

10,419

336

1.95

2.25

June

176

158

164

131

115

104

94

84

80

76

*65

57

47

48

50

91

62

177

191

120

99

86

72

64

62

54

67

57

47

42

2,740

91.3

0.531

0.59

July

39 ieST

110

82

88

309

296

190

153

115

97

78

70

67

57

135

217

473

258

459

504

1.060

585

343

*231

180

138

110

94

80

70

6,862

221

1.28

1.48

Aug.

64

60

54

50

176

253

1,090

1.400

292

199

156

128

115

101

84

74

69

64

95

153

84

67

60

55

51

48

52

45

42

41

5,740

185

1.08

1.24

Sept.

39

40

37

*33

33

35

38

33

3030"

30

37

32

30

84

"66 106

54

41

38

35

33

33

34

34

32

30

32

36

34

1,199

40.0

0.233

0.26

Calendar year 1955: Max 3,260 Min 20 Mean 202 Cfsm 1.17 In. 15.97

Water year 1955-56: Max 3,320 Min 20 Mean 254 Cfsm 1.48 In. 20.09

Peak discharge (base. 2.500 cfs). Jan. 30 (6 p.m.) 2,330 cfs (7.56 ft); Mar. 8 (11:3O a.m.) 4,050 

cfs (9.60 ft)j Apr. 3 (7:30 p.m.) 2,500 cfa (7.57 ft)j Apr. 7 (12 p.m.) 2,550 cfs (7.70 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 30 to Jan. 11, Jan. 20-29 (no gage-height 

record Jan. 25-29).
412 SUSQUEHANNA RIVER BASIN

Brush Creek at Gapsville, Pa.

Location.--Lat 39°57'20", long 78°15'15", on left bank 50 ft upstream from covered bridge, 

three-quarters of a mile northwest of Gapsville, Bedford County, and 62 miles upstream 

from Shaffer Creek.

Drainage area. 36.8 sq ml.

Records available.--October 1931 to September 1956 In reports of Geological Survey. Novetnber 1929 to September 1941 In reports of Pennsylvania Department of Forests and 

Waters.

Gage. Water-stage recorder and concrete control. Datum of gage Is 1,122.39 ft above mean 

sea level, datum of 1929. Prior to Feb. 7, 1930, chain gage at same site and datum.

Average discharge. 25 years (1931-56), 46.0 cfs.

Extremes. Maximum discharge during year, 560 cfs Apr. 7 (gage height, 4.73 ft); minimum, 

3.4 cfs probably Oct. 13 (gage height, 1.68 ft).

1929-56: Maximum discharge, 6,870 cfs Mar. 17, 1936 (gage height, 9.81 ft), from 

rating curve extended above 2,800 cfs; minimum, 0.2 cfs Aug. 28, Sept. 12, 20-23, 1932.

Remarks.--Records good. Some regulation at low flow by mills above station. 

Revisions (water years). WSP 781: 1934(M). WSP 821: 1936(M). WSP 891: 1939.

Rating tables, water year 1955-56 (sage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Aug. 7 Aug. 8 to Sept. 30

1.7 

1.9 

2.2 

2.5 

2.8

3.7

7.8

17

3.3 

3.7 

4.0 

4.3

126

216

305

395

1.8 

2.1 

2.4 

2.7 

2.9

4.2

12.5

25

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.0

5.5

5.0

4.6

4.4

4.2

*5.1

a5.6

a5.4

a5.0

a4.7

a4.5

a4.0

a 14

a50

a 32

a 22

ale

12.5

11.5

10

9.4

8.9

8.6

7.8

7.6

7.1

6.9

6.4

6 . 9

7.1

308.7

9.96

0.271

0.31

Nov.

6.9

6.4

6.0

6.9

6.4

6.2

5.7

5.7

5.7

5.7

7.3

11

18

15.5

14

20

35

27

25

23

*23

24

24

24

21

21

19.5

19.5

17

16.5

466.9

15.6

0.424

0.47

Dec.

15.5

15

14.5

14.5

14.5

13.5

12.5

12.5

12

11

10

*9.4

9.4

8.3

9.2

7.6

7.6

8.3

8.3

6.9

6.2

5.7

^72

7.3

11

8.3

6.9

6.2

6.0

6.0

6.2

296.5

9.56

0.260

0.30

Jan.

6.0

6.0

6.0

6.2

6.4

6.6

6.2

6.0

5.7

5.1

6.9

10

9.2

8.1

7.3

*7.1

7.1

6.6

6.2

6.0

6.4

6.4

6.2

6.0

5.7

5.7

5.1

4.4

573

136

43

364.9

11.8

0.321

0.37

Feb.

22

28

94

49

50

98

126

112

114

124

170

175

157

118

115

107

101

179

T65

*152

130

106

87

72

78

74

60

64

55

2,982

103

2.80

3.01

Mar.

47

47

45

42

38

46

91

153

*142

124

108

96

84

160

160

142

131

113

98

88

84

89

100

118

108

*107

98

88

89

92

87

3,015

97.3

2.64

3.05

Apr.

74

68

117

148

137

132

320

394

257

184

146

121

102

87

77

71

59

53

45

41

37

35

IT

39

39

36

36

36

37

*37

3,006

100

2.72

3.04

May

35

45

59

54

55

55

64

55

49

47

45

48

50

45

44

45

41

40

36

33

31

30

30

28

25

23

47

43

38

39

45

1,324

42.7

1.16

1.34

June

44

45

49

44

41

40

37

33

30

28

*25

23

21

21

18.5

17

16

19

22

16.5

16

16

16

13.5

11.5

11

18.5

13.5

11

10

727.0

24.2

0.658

0.73

July

8.9

12.5

12

10

12.5

15

19.5

13.5

13.5

12

11

9.4

9.7

10

8.9

7.3

10.5

16

10

20

28

24

*27

23

21

18.5

17

14.5

13

11.5

11

450.7

14.5

0.394

0.46

Aug.

9.7

9.2

8.6

7.6

1375

22

80

66

40

28

22

18

15.5

14.5

13

11.5

10

9.1

8.3

16.5

37

23

15.5

13

11.5

9.7

9.1

10.5

15

9.7

7.7

584.7

18.9

0.514

0.59

Sept.

6.6

8.6

7.2

*5.9

5.4

11

14.5

8.8

7.2

6.4

6.1

7.2

6.6

5.6

11.5

18

T4.5

13

10

9.4

8.0

7.2

6.6

6.6

6.1

5.4

4.9

7.4

7.7

6.4

249.8

8.33

0.226

0.25

Calendar year 1955: Max 721 Min 1.6 Mean 39.0 Cfsm 1.06 In. 14.39

Water year 1955-56: Max 394 Min 4.0 Mean 37.6 Cfsm 1.02 In. 13.92

Peak discharge (bas 480 efs). Apr. 7 (11 p.m.) 560 cfs (4.73 ft). 

this day.

 ds for nearby stations.

* Discharge measurement made

a No gage-height record; discharge estimated on b,
SUSQUEHANNA RIVER BASIN 413

Raystown Branch Juniata River at Saxton, Pa.

Location. Lat 40°12'55", long 78°15'55", on left bank at former site of highway bridge, 

500 ft downstream from present bridge on State Highway 913, 0.5 mile west of Saxton, 

Bedford County, and 1.5 miles upstream from Shoup Run.

Drainage area. 756 sq ml.

Records available.--October 1918 to September 1921 and October 1931 to September 1956 In 

reports of Geological Survey. August 1911 to September 1941 In reports of Pennsylvania 

Department of Forests and Waters.

;e. Water-stage recorder. Datum of gage Is 795.77 ft above mean sea level, datum of

929, supplementary adjustments of 1943 and 1944. Prior to Oct. 1, 1931, chain gage at 

site 0.8 mile downstream at datum 4.82 ft lower.

Average discharge.--45 years (1911-56), 914 cfs.

Extremes. Maximum discharge during year, 9,220 cfs Apr. 8; maximum gage height, 9.67 ft 

Jan. 31 (Ice Jam); minimum discharge, 75 cfs Jan. 8 (gage height, 1.04 ft).

1911-56: Maximum discharge, 80,500 cfs Mar. 18, 1936 (gage height, 24.54 ft, from 

floodmark In gage shelter), from rating curve extended above 17,000 cfs on basis of 

slope-area determination of peak flow; minimum, 52 cfs Oct. 17, 18, 1930.

Maximum stage known prior to 1911, 23.0 ft, present site, June 1, 1889, from floodmarks (discharge, about 71,300 cfs).

Remarks. Records good except those for periods of ice effect, which are fair, 

lation at low flow by mills above station.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

Some regu1.1

1.4, 

1.9

89

188

4,53

3.0 

5.0 

7.9

1,390

3,770

8,180

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

165

147

134

127

124,

 124,

127

134

137

134

137

134

124

160

255

310 290"

222

197

184

173

165

150 

143

140

134

130

137

137

147

154

4,976

161

0.213

0.24

Nov.

154

161

154

150

147

143

143

143 

137

137

150

165

177

236

236

326

679

»1,060

662

528

467

434

487 

460

480

428

403

384

306

270

9,807

327

0.433

0.48

Dec.

280

270

269

255

255

255

231

210 

197

190

180

170

*175

170

170

160

150

145

150

145

140

135

130 

135

173

173

155

140

130

125 

120

5,583

180

0.238

0.27

Jan.

120

115

115

125

137

140

130

120 

110

114

165

169

169

160

140

*135

135

130

125

120

120

125

125 

120

110

110

105-

T05

110

1,100

2,200

7,004

226

0.299

0.34

Feb.

1,260

767

3,140

2,690

1,440

1,740

3,560

2,740 

2,920

2,740

2,560

3,180

2,440

1,700

1,390

1,640

1,540

2,000

4,610

 3,060

2,260

1,640

1,240 

1,050

1,050

2,470

2,260

1,810

1,590

62,487

2,155

2.85

3.07

Mar.

1,240

1,090

1,150

1,010

956

1,090

3,000

7,080 

7,510

3,910

2,620

1,980

1,640

1,980

4,190

3,120

2,620

2,030

1,640

1,590

1,390

1,490

1,700 

1,760

1,860

 1,640

1,490

1,340

1,490

1,860

1,920

69,386

2,238

2.96

3.41

Apr.

1,540

1,340

2,160

5,900

4,190

2,860

4,230

8,180 

5,640

3,640

2,620

1,920

1,760

1,390

1,140

1.10O

1,07O

947

876

800

718

670

775 

938

965

1,020

1,110

1,090

1,050

*1,070

62,709

2,O90

2.76

3.08

May

1,000

938

1,900

2,440

1,920

1,490

1,760

2,080 

1,490

1,240

1,130

1,080

1,490

1,440

1,120

1.06O

1,070

911

911

792

710

655

655 

734

742

521

321

1,250

1,340

974 

833

36,197

1,168

1.54

1.78

June

911

903

876

T7S" 92O

678

617

543 

487

447

 422

373

332

311

290

279

349

390

813

859

543

403

378 

361

311

279

295

29O

3O6

250

14,991

500

0.661

0.74

July

218

236

280

518

428

422

1,240

885 

587

422

373

321

284

265

255

284

269

704

1,060

1,290

1.49O

1,440

1,760 

1,150

868

*670

558

473

403

355 

311

19,819

639

0.845

O;97

Aug.

274

255

236

335" 218

448

1,66O

5.510 

2,240

1,240

868

662

528

460

415

384

327

295

269

284

485

825

514 

384

316

274

250

245

496

521 

415

19,633

633

0.837

0.97

Sept.

295

321

39O

 295

250

241

284

332 

284

255

236

241

265

265

290

415

594

487

428

403

367

344

290 

241

214

205

192

T84" ISO

192

8,980

299

0.396

0.44

Calendar year 1955: Max 13,000 Mln 103 Mean 822 Cfsm 1.09 In. 14.76

Water year 1955-56: Max 8,180 Mln 105 Mean 879 Cfsm 1.16 In. 15.79

Peak discharge (base, 7.700 cfs).--Mar. 9 (2 a.m.) 9,040 cfs (8.36 ft); Apr. 8 (12 ra.) 9,220 cfs 

(8.53 ft).

* Discharge measurement made on this day. *

Note. Stage-discharge relation affected by Ice Nov. 30 to Dec. 2, Dec. 10-24, Dec. 27 to Jan. 4, 

Jan. 7-9, 14-31.
SUSQUEHANNA RIVER BASIN

Great Trough Creek near Marklesburg, Pa.

Location.--Lat 40°21'00", long 78°07>50", on left bank 40 ft downstream from highway

bridge, 0.5 mile upstream from mouth, and 3 miles southeast of Marklesburg, Huntingdon 

County.

Drainage area. 84.6 sq mi.

Records available. October 1931 to September 1956 in reports of Geological Survey. January 1930 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder and concrete control. Datum of gage is 714.48 ft above mean 

sea level, unadjusted.

Average discharge. 26 years (1930-56), 95.6 cfs.

Extremes. Maximum discharge during year, 1,310 cfs Mar. 8; maximum gage height, 6.17 ft 

Feb. 8 (ice jam); minimum discharge, 4.0 cfs Oct. 5, 13; minimum gage height, 0.32 ft 

June 12.

1930-56: Maximum discharge, 8,400 cfs Mar. 17, 1936 (gage height, 8.46 ft), from 

rating curve extended above 2,600 cfs; minimum, 0. fr-crfs-Sept^ 22, 23, 1932, Sept. 3, 

1934, Dec. 18, 1943.

Remarks. Records good except those for periods of ice effect, which are fair.

Revisions (water years). WSP 756: Drainage area. WSP 1202: 1930-31(M), 1932, 1936-37, 

1940-43, 1945(M), 1946, 1948(M).

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Dec. 16

1.3 

1.5

4.0

8.2

1.7 

2.0 

2.4

132

285

0.4 

.5 

.7

1.0

Dec. 16 to Sept. 3O

8.7 1.5

16 2.0

40 2.9

241

460

1,010

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

5.6

5.1

4.5

4.2

*4.0

5.3

5.1

7.0

5.8

5.1

4.5

4.4

4.0

60

285

148

70

54

44

36

30

26

22

20

23

23

18.5

16.5

15

16.5

23

995.1

32.1

0.379

0.44

Nov.

21

17.5

17

20

19.5

17.5

16

15.5

14.5

15

18.5

35

45

46

44

115

285

*T78

124

107

94

99

92

97

85

76

70

67

58 

60

1,969.0

65.6

0.775

0.87

Dec.

54

49

44

45

44

39

33

33

30

25

23

23

*23

22

22

21

21

21

22

21

19

18

17

17

19

27

21

19

17

16

15

820

26.5

0.313

0.36

Jan.

15

15

16

17

18

17

16

15

14

16

25

32

35

32

29

27

26

25

*25

23

21

20

18

16

15

14

14

14

15

150

510

1,045

33.7

0.398

0.46

Feb.

80

90

250

200

140

150

230

350

250

270

300

370

287

227

230

245

206

335

388

*279~

241

180

*130

110

210

308

224

180

140

6,600

228

2.70

2.90

Mar.

130

125

115

100

94

150

350

*950

747

470

342

275

227

311

347

295

256

227

193

168

160

174

206

252

220

206

*184

162

160

177

174

7,947

256

3.03

3.49

Apr.

142

140

315

500

356

291

636

746

490

374

304

249

210

174

154

145

127

112

107

93

82

76

1T7

127

119

112

119

114

112

117

6,760

225

2.66

2.97

May

*117

124

213

193

177

160

210

162

127

119

114

117

151

151

132

135

119

114

100

89

76

70

67

65

56

50

48

50

46

42

46

3,440

111

1.31

1.51

June

42

40

43

42

35

32

30

27

25

22

21

18

17

*14

19

19

23

44

51

36

31

32

27

38

31

23

120

17

15

12

846

28.2

0.333

0.37

July

11

180

175

217

117

144

151

100

78

61

50

40

37

35

32

403

445

295

210

288

378

363

408

275

*203

148

109

87

70

56

48

5,214

168

1.99

2.29

Aug.

42

37

32

27

539

356

601

594

347

241

162

117

93

84

69

58

50

43

39

42

87

70

43

35

30

26

23

30

74

63

42

4,096

132

1.56

1.80

Sept.

32

31

28

*22

20

23

44

26

19

16

15

21

19

16

17

22

26

21

17

14

13

12

11

11

11

9.4

8.7

8.7

9.4

9.4

552.6

18.4

0.217

0.24

Calendar year 1955: Max 894 Min 2.0 Mean 82.8 Cfsm 0.979 In. 13.29

Water year 1955-56: Max 950 Min 4.0 Mean HO Cfsm 1.30 In. 17.70

Peak discharge (base. 950 cfs).--Mar. 8 (2 p.m.) 1,310 cfs (3.28 ft); Apr. 7 (8 p.m.) 975 cfs 

(2.84 ft); Aug. 5 (8 a.m.) 1,270 cfs (3.27 ft); Aug. 7 (4:30 p.m.) 1,010 cfs (2.9O ft).

Discharge measurement made on this day. 

Note.--Stase-dlaeharge relation affected by ice Nov. 30, Dec 

Feb. 28 to Mar. 8.

1, Dec. 7 to Feb. 11, Feb. 22-25,
SUSQUEHANNA RIVER BASIN 415

Raystown Branch Juniata River near Huntingdon, Pa.

Location. Lat 40°25'35", long 78°01 I 50", 5 ft dovmstream from left abutment of highway 

bridge at Hawn Bridge, 6 miles south of Huntingdon, Huntingdon County, and 9 miles upstream from mouth.

Drainage area. 957 sq mi.

Records available.--January 1946 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 620.08 ft above mean sea level, adjustment 

of 1907.

Average discharge.--10 years, 1,128 cfs, unadjusted.

Extremes.--Maximum discharge during year, 10,800 cfs War. 9 (gage height, 10.61 ft); minimum, 14 cfs Dec. 24, 25; minimum gage height, 1.65 ft Dec. 25; minimum daily discharge, 

23 cfs Dec. 25.

1946-56: Maximum discharge, 24,500 cfs Nov. 25, 1950 (gage height, 16.74 ft), from 

rating curve extended above 16,000 cfs on basis of computation of flow over dam at gage 

height 31.0 ft; minimum, 12 cfs Oct. 21, 22, 1947, Oct. 21, 1949, Aug. 8, 1950, 

July 23, 24, 1952; minimum daily, 13 cfs June 8, 1952.

Flood of Mar. 18, 1936, reached a stage of 31.0 ft (discharge, 87,000 cfs, by computation of flow over dam).

Remarks.--Records good. Flow regulated by mills, powerplants, and Raystown Reservoir

(capacity rot known) above station. Records of chemical analyses and water temperatures 

for water year 1956 are given In WSP 1450.

Revisions.--WSP 1081: Drainage area.

Rating tables, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second) 

(Stage-discharge relation affected by Ice Jan. 26-30, Feb. 1-3)

Oct. 1 to Apr.

17 2.7

26 3.0

38 5.0

76 8.0

175 10.3

334

555

2,530

6,470

10,200

Apr. 9 to Sept. 30

2.2 

2.4 

2.7

174

334

Note. Same a 

preceding table 

above 2.7 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Of sm

In.

Oct.

168

76

166

157

*166

148

191

191

202

122

203

167

178

449

982

760

222

537 

286

222

216

190

178

206

204

205

182

209

199 

282

294

7,958

257

-

-

Nov.

267

358

289

420

198

140

307

246

105

207

209

120

92

*255

265

964

931

1.550 

1,530

601

430

630

690

680

756

633

565

423

398

378

14,617

487

-

-

Dec.

333

461

ITT

392

378

329

342

323

307

240

133

270

246

262

282

*208

175

137 

234

250

85

192

176

167

25

108

160

163

177

150

152

7,266

254

-

-

Jan.

150

161

271

259

196

201

50

84

252

256

247

239

253

137

68

247

228

*236 

228

228

26

24

183

188

186

140

250

180

170

50O

2.100

7,858

253

-

-

Feb.

2,600

1,500

1.500

5,650

2,240

1,950

5,220

4,070

3,570

3,510

3,450

3,810

3,570

2,640

2,090

2,040

2,200

2,510 

4.880

4,200

3,090

*2,420

1,830

1,500

1,600

2,340

3,210

2,640

2,200

79,630

2,746

-

-

Mar.

1,880

1,580

1,480

1,450

1.580

1,580

2,640

8,650

10.100

6,250

3,840

2,970

2,310

2,480

4,260

4,330

5,450

2,860 

2,560

2,090

2,040

1,880

2,040

2,560

2,360

2,510

*2,040

1,880

1,750

2, 560

2,360

90,790

2,929

-

-

Apr.

2,200

1,830

2,240

5,980

5,880

3,910

4,410

9.190

8,030

5,010

3,650

2,860

2,360

2,090

1,730

1,580

1,530

1,580 

1,550

1,450

1,580

1,070

1,100

1,180

1,550

1,260

909

1,580

517

1,450

80,376

2,679

-

-

May

*1,580

1,380

1,580

2.970

2,700

2,140

2,060

2,480

2,140

1,730

1,580

1,530

1,680

2,090

1,750

1,550

1,480

1,450 

1,450

879

1,560

452

957

944

967

702

550

859

1,680

1,480

1,520

47,170

1,522

-

-

June

951

926

1,000

1,040

1,000

857

820

622

698

575

502

*440

569

426

293

328

297

708 

402

1,210

885

437

510

408

411

319

425

316

317

25L

17,545

585

-

-

July

157

1,240

1,110

416

421

988

968

1,480

850

765

505

194

244

552

415

1,260

1,580

1,350 

1,070

1,530

2,140

2,040

2.260

1,930

*1,480

1,380

909

432

572

505 

591

50,892

997

-

-

Aug.

391

360

366

344

1,140

1,530

2,040

4.070

3,690

2,120

1,580

1,390

511

734

543

571

387

395 

412

444

509

900

807

410

542

528

592

418

570

688 

501

28,681

925

-

-

Sept.

439

556

595

457

510

*459

545

559

400

524

269

570

324

521

214

415

674

116 

568

590

442

368

417

522

277

214

127

255

268

258

10,787

360

-

-

Calendar year 1955: Max 11,800 Mln 23 Mean 1,049 Cfsm - In. -

Water year 1955-56: Max 10,100 Mln 23 Mean 1,157 Cfsm - In. -

Peak discharge (base. 6.500 cfs). Mar. 9 (10 a.m.) 10,800 cfs (10.61 ft); Apr. 4 (6:30 p.m.) 

7,900 cfs (8.86 ft); Apr. 8 (8 p.m.) 10,600 cfs (10.53 ft). 

* Discharge measurement made on this day.
416 SUSQUEHANN/V RIVER BASIN

Juniata River at Mapleton Depot, Pa.

Location. Lat 40°23'30", long 77°56'10", on right bank a quarter of a mile downstream 

from Scrub Run and a third of a mile downstream from bridge on State Highway 376 at 

Mapleton Depot, Huntingdon County.

Drainage area. 2,030 sq mi.

Records available. --December 1937 to September 1956.

Gage . Water-stage recorder. Datum of gage is 557.31 ft above mean sea level, datum of

929, supplementary adjustment of 1943.

Gage 

1

Average discharge. 18 years (1938-56), 2,458 cfs.

Extremes . Maximum discharge during year, 26.000 cfs Mar. 8 (gage height, 14.97 ft); minLmum, 96 cfs Jan. 15 (gage height, 1.19 ft); minimum daily, 300 cfs Jan. 8.

1937-56: Maximum discharge, 76,800 cfs Nov. 25, 1950 (gage height, 26.4 ft, from 

high-water mark in well), from rating curve extended above 31,000 cfs; minimum, 90 cfs 

Oct. 2, 1938; minimum daily, 173 cfs Sept. 23, 1940; minimum gage height, that of 

Jan. 15, 1956. Maximum stage known, 38.2 ft Mar. 18, 1936, from floodmark (discharge, 145,000 cfs, 

from rating curve extended above 31,000 cfs on basis of data for station at Newport).

Remarks .--Records good. Regulation at low flow by hydro-electric plants and mills above 

station.

Revisions (water years). WSP 921: 1940(M) .

Rating table, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

1.9 

Z.5 

3.0 

4.0

298

595

910

1,720

5.0

7.0

11.0

13.6

2,800

5,780

14,200

21,800

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4 

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

474

486 

*372

426 

462

466

470

490

712

371

494

390

437 

1,210

5.740

2,610

1,350

1,180

1,160

942

802

676

720

669

695

737

612 

648

628

662

916

28,007

903

0.445

0.51

Nov.

742

770 

746

784 

709

631

633

724

573

¥18

578

767

645 

*672

788

3,130

6.350

4,080

3,310

2,440

1,630

1,920

1,880

2,070

2,060

1,770

1,730 

1,5BO

1,320

1,230

46,880

1,563

0.770

0.86

Dec.

1,180

1,150 

1,170

1.250 

1,130

1,120

988

89B

974

800

706

766

834 

702

*797

634

60S

684

696

663

713

528

732

789

650

532

576 

506

605

571

568

24,500

790

0.389

0.45

Jan.

649

560 

706

692 

536

598

495

300

724

*681

764

828

758 

490

628

545

645

578

590

590

524

389

463

524

542

460

541 

430

404

1,050

4.330

22,014

710

0.350

0.40

Feb.

3,610

2.350 

3,040

5,300 

3,580

3,180

6,450

7,190

7,190

7,380

7,010

7,950

7,010 

4,960

4,640

4,960

4,640

6,050

9.550

7,950

6,120

*4,800

3,880

3,180

4,850

8,480

7,010 

6,120

4,960

163,350

5,633

2.77

2.99

Mar.

4,030

3.730 

3,730

3,880 

3,730

4,130

8,620

21.800

20,800

12,700

8,540

6,470

5,280 

5,440

8,140

7,950

6,650

5,780

4,800

4,330

4,330

4,180

4,330

4,960

4,800

4,640

*4,330 

4,030

3,880

4,330

4,800

198,940

6,417

3.16

3.64

Apr.

4,480

4,030 

5,420

12,200 

11,300

8,140

9,500

16.000

14,200

9,340

7,190

5,780

4,800 

4,330

3,730

3,590

3,450

3,310

5,120

2,920

2,800

2,740

5,750

3,730

5,730

3,580

2,950 

3,240

2.370

3,050

168,330

5,611

2.76

3.08

May

2,980

3,150 

6,320

*6,290 

5,610

4,640

5,520

5,280

4,640

3,880

3,590

3,730

11.400 

7,760

5,780

4,960

4,180

4,030

3,730

2,850

3,180

2,350

2,670

2,780

2,520

2,100

1.950 

2,060

2,750

2,560

2 * 500

127,540

4,114

2.03

2.34

June

1,980

2,000 

2.240

2,080 

2,060

1,720

1,680

1,430

1,470

1,300

1,250

*1,080

1,090 

1,040

1,060

1,010

926

1,390

1,530

1,730

1,780

1,540

1,130

1,480

1,480

1,100

1,220 

1,210

946

 903

42,855

1,428

0.703

d.79

July

762

5.990 

5,360

2,650 

2,260

2,500

2,740

2,740

2,080

1,740

1,610

1,050

980 

1,120

1,160

2,190

5,150

4,440

2,670

5,080

5,120

4,480

4,180

*3,590

2,920

2,680

2,300 

1,430

1,460

1, 390

1,220

85,022

2,743

1.35

1.56

Aug.

1,190

1,110 

1,020

1,030 

3,060

4,960

7,120

15.200

8,170

4,780

5,900

3,310

2,270 

2,670

2,110

1,810

1,610

1,420

1,470

1,480

1,450

1,820

1,620

1,500

1,160

972

1,240 

1,120

1,070

1,050

1,290

81,782

2,638

1.30

1.50

Sept.

1,170

1,190 

1,020

995 

839

*1,180

1.890

1,040

1,000

928

836

948

977 

890

769

993

1,190

1,510

1,090

882

1,000

909

962

1,000

880

796

594 

642

414

640

29,174

972

0.479

0.55

Calendar year 1955: Max 20,400 Mln 333 Mean 2,308 Cfsm 1.14 In. 15.45

Water year 1955-56: Max 21,800 Mln 300 Mean 2,782 Cfsm 1.37 In. 18.65

Peak discharge (base. 12.500 cfs) . Mar. 8 (7:30 p.m.) 26,000 cfs (14.97 ft); Apr. 4 (9 p.m.) 

13.400 cfs (10.74 ft); Apr! 8 (10=30 p . m .) 17.000 cfs (12.02 ft); May 13 (9 a.m.) 15,000 cfs (11.27 

ft); Aug. 8 (11:30 a.m.) 15,900 cfs (11.62 ft).

* Discharge measurement made on this day.
SUSQUEHANNA RIVER BASIN 417

Aughwick Creek near Three Springs, Pa.

Location.--Lab 40°12'45", long 77°55'30", on right bank 10 ft downstream from bridge on 

State Highway 377, 300 ft upstream from East Broad Top Railroad bridge, 350 ft upstream 

from Three Springs Creek, and 3| miles northeast of village of Three Springs, Huntingdon County. Records include flow of Three Springs Creek.

Drainage area. 205 sq mi, includes that of Three Springs Creek.

Records available. May 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 618.65 ft above mean sea level, unadjusted.

Average discharge.--18 years, 248 cfs.

Extremes.--Maximum discharge during year, 3,590 cfs Oct. 15 (gage height, 9.26 ft); minimum, 23 cfs Oct. 13 (gage height, 2.28 ft).

1938-56: Maximum discharge, 20,600 cfs Nov. 25, 1950 (gage height, 18.04 ft), from 

rating curve extended above 2,900 cfs on basis of contracted-opening determination of 

peak flow; minimum, 3.9 cfs Sept. 4, 5, 1953; minimum gage height, 1.79 ft Aug. 31, 

1938.

Maximum stage known, about 19.3 ft June 1, 1889 (discharge, 24,000 cfs).

Remarks.--Records good except those for periods office effect or backwater from aquatic 

vegetation, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect or backwater 

from aquatic vegetation (gage height, In feet, and discharge, In cubic 

feet per second)

Oct. 1 to Apr. 3 Apr. 4 to Sept. 30

2.3 

2.7 

3.1 

3.5

24

45

80

139

4.0 

5.0

7.0 

7.6

275

700

1,800

2,200

34

101

183

4.0 

5.0 

7.0 

7.6

302

700

1,800

2,200

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

42

38

*34

31

29

32

38 

40

38

34

30

28

26

617

2 , 160

653

363

258

187

143

116 

100

84

79

84

77

66

61

57

68

125

5,738

185

0.902

1.04

Nov.

86

69

65

66

62

57

54 

54

51

50

64

122

245

231

196

406

815

*498

355

272

224 

231

206

201

168

153

141

132

106

110

5,490

183

0.893

1.00

Dec.

99

94

92

97

93

83

70 

71

66

66

58

65

62

54

*64

48

48

53

54

47

40 

36

37

44

60

64

45

35

33

35

36

1,849

59.6

0.291

0.34

Jan.

33

33

35

40

43

40

37 

35

33

34

53

100

93

66

55

51

48

*41

39

39

43 

43

41

36

35

33

32

33

35

333

819

2,431

78.4

0.382

0.44

Feb.

275

266

815

632

383

677

1.410 

1,080

1,090

1,020

940

1,170

790

565

542

520

435

1,050

1,120

790

588 

427

*355

291

363

435

299

295

240

18,863

650

3.17

3.42

Mar.

193

215

204

185

164

328

959 

1.770

1,500

1,000

720

580

484

924

1,290

915

745

610

488

427

439 

524

632

790

678

565

*467

379

387

455

459

19,476

628

3.06

3.53

Apr.

407

375

1,200

1,860

1,060

768

1,510 

2.200

1,400

940

700

565

461

382

346

333

273

242

222

188

170 

163

264

280

250

230

240

230

219

239

17,717

591

2.88

3.21

May

*207

238

505 *407

357

316

489 

393

316

286

264

258

286

239

202

216

186

176

156

136

123 

115

115

130

104

97

105

160

119

114

128

6,943

224

1.09

1.26

June

134

151

149

132

111

101

91 

86

83

81

74

*65

59

100

78

69

70

121

166

104

75 

74

99

200

116

72

137

191

88

64

3,141

105

0.512

0.57

July

56

344

602

1,150

411

426

493 

305

261

160

117

90

76

75

65

522

400

273

170

1,080

1.480 

1,130

722

473

312

*199

147

114

93

77

68

11,891

384

1.87

2.16

Aug.

62

57

54

49

752

525

992 

1,500

565

292

178

123

98

88

77

67

60

55

51

60

224 

142

73

59

52

48

46

50

354

164

92

6,809

220

1.07

1.24

Sept.

68

70

65

52

47

*50

68 

52

43

40

38

40

40

40

47

Q65

59

52

50

59

55

51

52

51

46

43

46

52

52

1,577

52.6

0.257

0.29

Calendar year 1955: Max 4,150 Mln 9.5 Mean 247 Cfsm 1.20 In. 16.34

Water year 1955-56; Max 2,200 Mln 26 Mean 278 Cfsm 1.36 In. 18.50

Peak discharge (base. 2.100 cfs). Oct. 15 (4 a.m.) 3.590 cfs (9.26 ft)j Apr. 3 (10 p.m.) 2,770 

cfs (8.44 ft)j Apr. 7 (about 8 a.m.) 2,620 cfs (8.22 ft); July 3 (10 p.m.) 2,620 ofs (8.22 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 30 to Dec. 2, Dec. 8-13, 21-25, Dec. 28 to 

Jan. 3, Jan. 7-10. Backwater from aquatic vegetation June 18-20, 23-25, 27-29, July 2, 3, 5-20, 

July 23 to Aug. 7, Aug. 9 to Sept. 8, Sept. 15-26, 28-30.
418 SUSQUEHANNA RIVER BASIN

Kishaooquillas Creek at Reedsville, Pa.

Location.--Lat 40°39'15", long 77°35'00", on left bank 150 ft downstream from bridge on 

0. S. Highway 322, 1 mile southeast of Reedsville, Mifflin County, and 1 mile downstream 

from Honey Creek.

Drainage area. 164 sq mi.

Records available. November 1939 to September 1956.

Gage. Water-stage recorder. Datum of gage is 551.23 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943.

Average discharge. 16 years (1940-56), 226 cfs.

Extremes. Maximum discharge during year, 3,110 cfs Oct. 14 (gage height, 8.11 ft); minimum, 38 cfs Oct. 12 (gage height, 1.89 ft).

1939-56: Maximum discharge, 9,830 cfs Nov. 25, 1950 (gage height, 13.12 ft), from 

rating curve extended above 2,400 cfs on basis of slope-area determination of peak flow; 

minimum daily, 14 cfs Jan. 9-12, 1940.

Flood in March 1936 reached a stage about 1 ft higher than that of Nov. 25, 1950.

Remarks. Records good. Diurnal fluctuation at low flow caused by mills above station.

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

1.9 

2.2 

2.5 

3.0 

3.5

155

261

4.0 

5.0 

6.0 

6.6

397

775

1,320

1,760

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

52

51

*48

44

45

55

63

56

52

48

44

43

43

1,430

1.690

860

605

478

391

328

284

247

223

208

199

177

162

152

145

182

185

8,590

277

1.69

1.95

Nov.

159

145

140

136

125

119

115

111

104

*105

123

145

141

133

128

625

"625 810

548

478

428

379

350

339

304

286

276

264

242

226

8,109

270

1.65

1.84

Dee.

210

201

200

200

190

170

160

150

148

150

128

127

 121

115

116

94

103

107

103

92

84

84

88

93

100

96

86

77

81

88

81

3,843

124

0.756

0.87

Jan.

84

80

82

81

81

80

79

74

73

84

111

104

104

86

81

81

78

*72

72

72

70

70

70

62

J54

64

63

60

62

25C

TT? j. i \j

2,654

85.6

0.522

0.60

Feb.

93

91

93

99

87

90

312

405

441

624

582

723

444

356

428

367

326

568

478

*428

391

345

312

284

451

540

428

460

397

10,643

367

2.24

2.41

Mar.

359

364

382

385

367

412

558

1.540

1,220

945

775

645

565

565

548

495

460

428

394

367

359

359

373

460

412

428

412

397

394

391

373

15,932

514

3.13

3.61

Apr.

342

331

*376

444

460

444

631

708

645

605

548

495

444

412

382

367

334

312

284

261

242

249

304

276

247

237

232

226

235

228

11,301

377

2.30

2.56

May

214

245

326

278

276

290

693

*548

495

460

397

412

624

512

495

478

428

412

367

328

299

281

442

356

312

294

291

286

251

244

230

11,564

373

2.27

2.62

June

219

216

320

261

235

219

206

193

183

175

160

146

138

130

128

132

121

176

*150

125

141

133

161

304

193

162

150

133

122

112

5,244

175

1.07

1.19

July

105

119

109

100

104

104

98

92

91

86

81

78

77

77

74

78

82

76

72

111

195

136

108

95

90

86

145

103

104

*90

84

3,050

98.4

0.600

0.69

Aug.

80

77

74

71

iTf

302

377

284

247

221

193

185

218

235

179

159

162

141

140

136

148

128

115

109

 103

96

95

95

91

95

180

4,913

158

0.963

1.11

Calendar year 1955: Max 1,690 Min 27 Mean 209 Cfsm 1.27 in. 17.32

Sept.

140

324

201

164

143

303

322

239

210

185

*169

164

148

138

143

162

143

164

133

124

114

108

134

250

152

135

125

122

116

114

5,089

170

1.04

1.15

Water year 1955-56: Max 1,690 _ Min 43 Mean 248 Cfsm 1.51 In. 20.60

Peak discharge (base, 1.100 efs). Oct. 14 (9:30 p.m.) 3,110 cfs (8.11 ft); Feb. 11 (11 p.m.) 

1,220 eta (5.83 ft); Feb. 18 (6 p.m.) 1,130 ofs (5.68 ft); Feb. 25 (7 p.m.) 1,560 ofs (6.36 ft); 

Mar. 8 (1:30 p.m.) 1,720 ofs (6.57 ft).

* Discharge measurement made on this day.
SUSQUEHANNA RIVER BASIN 419

Tuscarora Creek near Port Royal, Pa.

Location. Lat 40°30'55", long 77°25'10", on left bank 100 ft upstream from highway bridge, 

2 miles southwest of Port Royal, Juniata County, and 3j miles upstream from mouth.

Drainage area. 214 sq mi.

Records available. October 1918 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. August 1911 to September 1941 in reports of Pennsylvania 

Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 420.47 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Prior to Aug. 5, 1931, at site 100 ft downstream at same datum.

A'verage discharge. 45 years (1911-56), 259 cfs.

Extremes. Maximum discharge during year, 5,160 cfs Oct. 15 (gage height, 10.70 ft); minIfflum, 28 cfs Oct. 5, but may have been less during period of ice effect; minimum gage 

height, 3.31 ft Sept. 27, 28.

1911-56: Maximum discharge, 19,400 cfs Nov. 25, 1950 (gage height, 19.73 ft, from 

high-water mark in gage house), from rating curve extended above 5,000 cfs by logarithmic plotting; maximum gage height, 21.60 ft Mar. 19, 1936, from floodmark (backwater 

from Juniata River); minimum discharge observed, 1 cfs Aug. 31, Sept. 4-6, 14, 18, 1913, 

Sept. 21, 1914.

Maximum stage known prior to 1911, 20.5 ft June 1, 1889 (backwater from Juniata 

River).

Remarks.--Records good except those for periods of ice effect, which are fair, 

latlon at medium and low flow by gristmills above station.

Revisions. WSP 756: Drainage area.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

Some reguOct. 1 to Feb. 7 Feb. 8 to Sept. 3O

3.6 

3.9 

4.3 

4.7

188

346

5.0 

7.0 

9.4

493

1,710

3,790

3.2 

3.4 

3.7 

4.0

32

50

92

155

4.5 

5.0 

6.0 

6.7

320

550

1,080

1,500

year October 1955 to September 1956

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17 

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

40

33

*31

30

28

40

60

62 

53

49

42

35

33

2,240

5,710

981

53O 

403

337

269

216 

185

166

159

192

162

144

130

122

122

227

1O,831

349

1.63

1.88

Nov.

132

150

139

136

122

109

101

99 

94

92

111

172

294

*261

220

569

1.100 

623

437

365

306 

294

257

246

212

198

188

178

144

142

7,541

251

1.17

1.31

Dec.

144

133

127

130

133

117

1O6

101 

101

96

85

SO

 78

72

60

50

45 

48

60

52

47 

42

41

4O

50

65

55

45

41

4O

39

2,323

74.9

0.350

0.40

Jan.

38

37

37

42

48

46

43

38 

36

38

70

120

130

87

76

72

*74 

60

49

45

40 

33

40

37

36

35

34

34

35

110

371

1,996

64.4

O.301

0.35

Feb.

224

28"9 159

473

355

4OO

l.OOO

1.230 

1,140

948

865

1,060

755

545

481

481

393 

587

920

*640

490 

366

*308

267

410

620

406

420

362

16,594

572

2.67

2.88

Mar.

293

297

285

259

235

242

615

1.500 

1,380

838

650

595

520

675

1,000

782

675 

555

490

429

434 

525

675

838

70O

610

505

429

424

447

505

18,407

594

2.78

3.20

Apr.

429

397

*524

975

728

595

1,200

1.500 

1,060

782

615

515

434

375

341

333

300 

263

238

209

191 

185

?36

324

274

256

256

. 235

222

215

14,267

476

2.22

2.48

May

197

208

466

354

308

293

546

*402 

*308

277

263

270

1.430

989

585

495

375 

345

293

242

206 

191

185

168

148

136

136

143

125

120

136

1O,340

334

1.56

1.80

June

125

123

Tie- 179

lie

101

94

87 

81

81

76

72

66

66

66

62

63 

*78

90

76

72 

96

77

14O

132

81

78

108

76

63

2,773

92.4

0.432

0.48

July

55

56

121

79

72

87

96

69 

55

54

44

39

42

50

62

54

277 

131

86

107

ffl

676

347

238

185

250

153

118

*99

87

5,233

169

0.790

0.91

Aug.

79

75

69

62

568

"755 784

466 

277

203

155

125

114

112

97

86

81 

96

72

69

103 

141

86

7O

62

55

M

55

178

108

70

5,327

172

0.804

0.93

Sept.

60

60

78

56

49

56

99

76 

54

*46

45

44

47

48

44

54

82 

60

52

48

47 

45

44

50

52

46

41

44

50

51

1,628

54.3

0.254

0.28

Calendar year 1955: Max 3,710 Mln 12 Mean 238 cfsm 1.11 In. 15.10

Water year 1955-56: Max 3,71O Mln 28 Mean 266 Cfsm 1.24 in. 16. 9O

Peak reaK discharge qiscnarge (base, ipase. 3,700 o.iuu cfs).-- ciai. ucc. Oct. 15 J.3 (8 10 a.m.) a.m.; 5,160 O,J.DU efs CIB (1O.70 no. (u ft). it/.

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 11 to Jan. 12, Jan. 2O-30,~ Feb. 6, 7
420 SDSQUEHANNA RIVER BASIN

Cocolamus Creek near Millerstown, Pa.

Location.--Lat 40°33'55", long 77°07'05", on right bank 10 ft upstream from bridge on State 

Highway 17, 2.3 miles northeast of Mlllerstown, Perry County, and 3 miles upstream from 

mouth.

Drainage area. 57.2 sq ml.

Records available. October 1931 to September 1956 In reports of Geological Survey. Pebruary 1930 to September 1941 In reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder and concrete control. Datum of gage Is 425.50 ft above mean 

sea level (Pennsylvania State highway benchmark).

Average discharge. 26 years (1930-56), 77.0 cfs.

Extremes. Maximum discharge during year, 3,520 cfs Oct. 14 (gage height, 7.40 ft); minimum, 6.2 cfs July 20, but may have been less during period of ice effect.

1930-56: Maximum discharge, 4,560 cfs Aug. 24, 1933, Nov. 25, 1950; maximum gage 

height, 8.20 ft Aug. 24, 1933; minimum discharge, 0.7 cfs Aug. 15, 1932 (gage height, 

0.81 ft); minimum daily, 1.3 cfs Aug. 28, 1932, Aug. 21, 1944.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Some diurnal fluctuation caused by gristmills above station.

Revisions (water years). WSP 756: Drainage area. WSP 1081: 1932-33, 1934(M) , 1935-36.

Rating table, water year 1955-56, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.0 

2.2

5.4

10.5

19

35

58

2.7 

3.0 

4.0 

5.7

119

223

696

1,700

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O 

31

Total

Mean

Cfsm

In.

Oct.

11.5

9.7

*8.5

8.0

7.8

24

22

20

18

15

13

12

11.5

1.700

721

274

172

125

96

76

63

52

46

47

52

41

36

33

32

49

44

3,840.0

124

2.17

E.50

Nov.

35

32

33

36

31

30

*29

29

26

28

46

73

78

76

68

484

454

222

163

131

116

1O6

94

88

78

74

69

66

53

54

2,902

96.7

1.69

1.89

Dec..

49

44

43

44

43

38

34

33

32

28

23

21

*20

18

16

14

13

13

15

14

13

12

11

11

13

17

13

11

10

11

10

687

22.2

O.388

0.45

Jan.

11

10

10

11

14

13

12

11

11

16

28

26

23

15.5

16

15

*15

12.5

10.5

10

9.5

9.0

10

9.5

9.2

8.9

8.6

8?6

9.0

25

472.8

15.3

0.267

0.31

Feb.

50

38

60

90

70

85

250

350

270

230

200

240

170

130

120

120

100

150

230

 160

134

104

75

60

90

160

110

1O5

105

4,056

140

2.45

2.64

Mar.

98

94

88

80

69

81

118

3O5

257

178

143

99

96

144

177

184

163

134

114

1O6

116

136

156

211

ISO

163

131

112

109

114

106

4,262

137

2.40

2.77

Apr.

86

84

*86

90

82

74

244

442

159

180

143

122

106

92

86

88

76

66

58

52

47

48

94

69

60

57

57

56

56

54

3,114

104

1.82

2.02

May

46

80

214 14"0

1O6

94

160

*112

99

92

84

86

140

112

96

99

80

78

68

58

53

48

82

66

48

43

46

48

38

48

46

2,610

84.2

1.47

1.70

June

47

49

89

75

63

53

44

39

34

34

29

24

22

26

28

19.5

17.5

*23

22

17

24

21

16

24

15.5

13

68

36

21

16.5

1,013.0

33.8

0.591

0.66

July

14

17.5

16

12

18

20

18

12.5

12

13

10.5

9.4

8.8

10

8.5

8.3

9.4

8.3

6.8

23

ISO

78

52

34

27

24

170

77

74

*46

36

1,054.0

34.0

0.594

0.69

Aug.

30

24

19.5

15.5

51

135

129

78

56

52

38

32

36

62

31

25

21

19

17.5

17.5

33

21

16.5

15

13

12

11. 5

T5

14.5

12.5

15

1,065.O

34.4

0.601

0.69

Sept.

11.5

12

11.5

9.1

8.5

9.1

12.5

8.8

7.8

*7.1

7.1

7.3

7.5

7.5

*8.5

13

10.5

9.4

8.3

7.8

7.3

6.8

775

9.7

8.8

7.3

6.8

7.8

8.8

8.3

263.9

8.80

O.154

0.17

Calendar year 1955: Max 1,700 Mln 2.6 Mean 65.6 Cfsm 1.15 In. 15.56

Water year 1955-56: Max 1,7OO Mln 6.8 Mean 69.2 Cfsm 1.21 In. 16.49

Peak discharge (base. 1.000 cfs). Oct. 14 (5:3O p.m.) 3,520 cfs (7.4O ft); Nov. 16 (3 p.m.) 1,O70 

cfs (4.7O ft).

* Discharge measurement made on this day.

Note.--Ho gage-height record Jan. 24 to Feb. 20, Feb. 23 to Mar. 1; discharge estimated on basis 

of recorded range In stage and records for nearby stations. Stage-discharge relation affected by 

loe Dec. 1O to Jan. 1O, Jan. 20-23.
SUSQUEHANNA RIVER BASIN 421

Juniata River at Newport, Pa.

Location. Lat 40°28'45", long 77°07'45", on right bank at downstream side of highway 

bridge at Newport, Perry County, 1,000 ft upstream from Little Buffalo Creek.

Drainage area. 3,354 s(j mi.

Records available. March 1899 to December 1913, October 1918 to September 1921, October 

1923 to September 1926, and October 1931 to September 1956 in reports of Geological 

Survey. March 1899 to September 1941 in reports of Pennsylvania Department of Forests 

and Waters.

Gage. Water-stage recorder. Datum of gage is 363.93 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Prior to July 16, 1929, chain gage at same 

site and datum.

Average discharge. 55 years (1899-1905, 1907-56), 4,339 cfs.

Extremes. Maximum discharge during year, 34,500 cfs Mar. 9 (gage height, 13.53 ft); minimum, 525 cfs Dec. 16 (gage height, 3.10 ft); minimum daily, 624 cfs Oct. 5.

1899-1956: Maximum discharge, 190,000 cfs Mar. 19, 1936 (gage height, 34.24 ft, 

from floodmark in gage shelter), from rating curve extended above 100,000 cfs; minimum, 

241 cfs Jan. 8, 1954 (gage height, 2.78 ft), result of freezeup; minimum daily, 286 cfs 

Sept. 25, 1932.

Maximum stage known, 35.9 ft June 1, 1889. from floodmarks (discharge, 209,000 cfs, 

from rating curve extended above 100,000 cfs).

Remarks. Records good except those for periods of ice effect, which are fair. Some regulation at low flow by powerplants and mills above station. Records of chemical analyses, suspended sediment loads, and water temperatures for the water year 1956 are given 

in WSP 1450.

Revisions (water years). WSF 756: Drainage area. WSP 781: 1902(M). WSP 921: 1936(M) .

Rating table, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

3.1 

3.5 

4.0

525

1,060

2,040

6.0

12.0

13.2

7,160

27,900

33,100

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9 

10

11

12

13

14 

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

858 

748

*760

722

624

735

844

886

830 

844

978

735

722

9,230 

17.900

13,400

6,820 

4,550

3,550

3-, 3 10

2,720

2,280

2,040

1,820

1,860

1,780

1,670

1,610

1,450

1 490

1^820

89,586

2,890

0.862

0.99

Nov.

1,820 

1,910

1,590

1,690

1,550

1,570

1,450

1.220

1,350 

1,390

1,340

1,740

1,910

2,130 

2,110

3,150

8,870 

*10.500

7,160

6,020

4,940

3,920

3,920

3,920

3,800

3,670

3,430

3,310

3,000

2,560

96,740

3,225

0.962

1.07

Dec.

2.490 

2,330

2,310

2,380

2,260

2,170

2,000

2,040

1,820 

1,720

1,600

1,400

*1,300

1,610 

1,500

900

1,400 

1,450

1,650

1,450

1,250

1,700

1,600

1,400

1,550

2,400

1,700

1,300

1,600

1,650

1,200

53,130

1,714

0.511

0.59

Jan.

1,400 

1,250

1,100

1,250

1,500

1,800

1,700

1,550

1,420 

816

1,280

1,670

1,690

2.100 

1,800

1,500

*1,300 

1,500

1,930

1,250

1,450

1,250

1,100

1,200

870

1,350

1,250

1,300

1,150

1,140

1,900

43,766

1,412

0.421

0.49

Feb.

5,400 

5,150

5.550

4,810

6,870

5,340

7,160

12,500

13,200 

12,500

12,500

13,200

13,200

10,300 

7,760

7,460

7,310 

7,460

8,760

13.800

10 , 900

8,370

*6,580

5,600

5,200

9,440

10,800

9,310

8,370

252,800

8,717

2.60

2.80

Mar.

6,870 

6,020

5,600

5,470

5,470

5.340

6,680

18,800

52.900 

25,000

16,200

11,900

9,630

8,680 

10,900

13,200

11,900 

9,950

8,370

7,310

6,870

7,020

7,310

8,370

8,680

8,060

7,610

6,870

6,440

6^870

306,590

9,890

2.95

3.40

Apr.

7,160 

6,580

*6,160

10,700

17,200

14,200

12,900

19,200

23.500 

18,200

13,200

10,600

8,370

7,310 

6,440

6,020

5,600 

5,340

5,070

4,810

4,420

4,300

4,550

5,600

5,470

5,340

5,070

4,680

4,810

4.170

256,970

8,566

2.55

2.85

May

4,300 

4,550

5,880

8,680

8,370

7,310

7,610

*8,370

7,460 

6,720

6,020

5,600

8,430

15.900 

10,400

8,370

7,020 

6,160

6,020

5,470

4,550

4,550

4,170

4,550

4,300

3,670

3,670

3,430

5.310

3,920

3,920

192,680

6,215

1.85

2.14

June

3,800 

3,310

3,800

4.040

3,310

3,430

2,900

2,650

2,560 

2,380

2,280

2,020

1,860

1,800 

1,780

1,690

1.610 

*1,670

1,970

2,470

2,330

2,790

2,440

2,600

2,190

2,540

2,400

1,970

2,020

1, 890

74,500

2,483

0.740

0.83

July

1.490 

1,490

6,060

6,400

4,680

3,670

3,430

3,920

3,800 

3,190

2,700

2,400

2,000

1,610 

1,570

1,670

3,030 

6,460

5,340

4,170

9.110

8,680

7,460

6,720

5,470

4,550

4,550

3,920

2,900

2,400

*2,310

127,150

4,102

1.22

1.41

Aug.

1,970 

1,800

1,630

1.550

2,040

5,960

8,370

11,200

15.500 

9,630

6,300

5,070

4,420

4,040 

3,670

3,310

2,880 

2,740

2,280

2,150

2,280

2,470

2,700

2,510

2,310

1,740

1,610

1,570

1,840

1, 820

1,890

119,230

3,846

1.15

1.32

Sept.

2,150 

2,150

2,330

1,820

1,610

1,550

1,930

2.720

2,110 

1,630

1,490

1,430

1,340

1,470 

*1,410

1,430

1,370 

1,760

1,930

1,970

1,430

1,370

1,470

1,510

1,670

1,470

1,280

1,210

1.020

1,040

49,070

1,636

0.488

0.54

Calendar year 1955: Max 32,900 MLn 536 Mean 3,825 Cfsm 1.14 In. 15.48

Water year 1955-56: Max 32,900 Min 624 Mean 4,542 Cfsm 1.35 In. 18.43

Peak discharge (base. 29.000 efs). Mar. 9 (11:30 a.m.) 34,500 cfs (13.53 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 11-13, Dec. 15 to Jan. 8, Jan. 14-18, 20-29, 

31, Feb. 1.

505690 O - 59 - 28
422 SUSQUEHANNA RIVER BASIN

Bixler Run near Loysville, Pa.

Location.--Lat 40 0 22'15", long 77°24'10", on right bank 400 ft upstream from bridge on 

State Highway 850 at Bixler, 2.3 miles upstream from mouth, and 3.6 miles west of 

Loysville, Perry County.

Drainage area. 15.0 sq ml.

Records available. January 1954 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 601.22 ft above mean sea level, datum of 

~:r929. Prior to May 14, 1954, wire-weight gage and crest-stage Indicator 400 ft downstream at same datum.

Extremes. Maximum discharge during year, 1,060 cfs Oct. 14 (gage height, 6.76 ft); min-

 imuniT 3.1 cfs Jan. 25 (gage height, 2.98 ft).

1954-56: Maximum discharge, 1,680 cfs Aug. 13, 1955 (gage height, 6.77 ft); minimum, 3.1 cfs-July 22, 23, Aug. 3, 4, 5, 6, 1955, Jan. 25, 1956; minimum gage height, 

that of Jan. 25, 1956.

Remarks. Records good except those for periods of ice effect, which are fair. This station is operated in connection with a study of the effect of soil conservation practices 

on streamflow and suspended sediment loads. Records of suspended sediment loads and 

water temperatures for the water year 1956 are given in WSP 1450.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 15 to Sept. 30

3.3

3.4 

3.7 

4.0 

4.3

4.6 110

5.0 180

5.5 314

6.0 545

3.05

3.1

3.2 

3.5

\

4.0 

4.9 

7.2

3.8 

4.2 

4.7

Discharge, In cubic feet per second, water ye^ar October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

5.0

5.1

4.8

*4.8

4.8

9.2

6.9

7 .3

5.3

4.8

4.6

4.3

8.7

*531 125"

59

42

35

28

23

20

18

17

17

16

15

14

13

12 

13

12

1,085.6

35.0

2.33

2.69

Nov.

11

11

11

10

10

10

9.7

9.3

9.0

10

14

16

14

*12

11

33

3T

23

21

20

19

17

16

15

14

13

13

13

11 

10

437.0

14.6

0.973

1.08

Dec.

10

10

11

11

10

9.7

9.0

9.3

9.3

8.7

8.1

7 .8

7 .8

*7 .5

7.6

7.0

6.8

7.0

7.0

6.2

6.0

6.0

6.2

7.0

8.7

7.2

6.0

5.6

5.6

5.5

5.4

240.0

7.74

0.516

0.60

Jan.

5.4

5.3

5.2

6.0

6.7

6.4

6.2

5.7

5.7

7 .8

9.7

8.7

7.5

6.9

6.7

*6.4

6.4

5.9

5.8

5.6

5.4

5.2

5.4

5.2

5.0

4.8

4.7

4.6

5.3 

42

IS

229.6

7.41

0.494

0.57

Feb.

11 7.8

31

15

22

62

96

79

50

42

42

47

34

28

27

23

21

53

37

31

26

21

*19

19

35

25

22

26

20

971.8

33.5

2.23

2.41

Mar.

19

19

18

17

i§

18

32

62

46

36

32

32

30

53

48

45

39

34

30

29

30

38

48

51

42

40

34

30

31

36

30

1,066

34.4

2.29

2.64

Apr.

26

*26

38

34

30

30

125

104

68

54

45

39

35

31

30

30

26

24

21

19

18

T§

32

23

21

21

19

19

19

19

1,045

34.8

2.32

2.59

Hay

17

28

29

25

23

25

42

30

*26

24

22

25

60

35

30

29

25

24

20

17

16

15

15

13

12

12

12

12

11

11

10

695

22.4

1.49

1.72

June

12

12

18

11

10

9.0

8.7

8.4

8.4

8.1

7.2

6.9

6.7

- 6.9

6.7

6.4

FA

11

*7.5

6.7

19

8.7

8.0

16

7.5

6.7

19

8.4

6.9

6.4

284.6

9.49

0.633

0.71

July

5.9

8.1

8.4

6.7

13

10

8.1

6.9

7.5

6.2

5.7

7.5

8.4

11

6.7

11

8.1

6.7

6.4

83

108

45

31

23

20

17

15

13

11

10*9.3

537.6

17.3

1.15

1.33

Aug.

9.0

8.7

7.8

7.8

il

44

34

23

18

16

14

13

13

12

11

10

9.7

9.3

9.0

10

14

9.7

8.7

8.1

7.8

7.5

778

10

10

7.8

7 .5

439.2

14.2

0.947

1.09

Sept.

7.2

9.7

7.2

6.7

6.7

8.8

7.5

6.4

6.2

6.2

*6.2

6.2

6.2

5.9

8.1

8.1

6.9

6.4

5.9

6.2

5.9

5.9

6.6

6.7

5.9

5.7

579

7.8

6.7

6.4

202.2

6.74

0.449

0.50

Calendar year 1955: Max 531 Hln 3.3 Mean 17.3 Cfsm 1.15 In. 15.65

Water year 1955-56: Max 531 Hln 4.3 Mean 19.8 Cfsm 1.32 In. 17.93

Peak discharge (base. 160 efs).--0et. 14 (4 p.m.) 1,060 cfs (6.76 ft); Feb. 8 (4 p.m.) 212 cfs 

(5.13 ft); Apr. 7 (8 p.m.) 178 cfs (4.97 ft); July 21 (5 a.m.) 216 cfa (5.15 ft); Aug. 5 (6:30 ajn.) 

214 cfs (5.14 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Nov. 30 to Dec. 2, Dec. 15-24, Dec. 27 to Jan. 4, 

Jan. 19-29.
SUSQUEHANNA RIVER BASIN 423

Sherman Creek at Shermandale, Pa.

Location. Lat 40°19'25", long 77°10'OS", on left bank on downstream side of bridge on 

State Highway 34 at Shermandale, Perry County, l£ miles upstream from Pishing Run.

Drainage area. 200 sq mi.

Records available. October 1931 to September 1956 in reports of Geological Survey. September 1929 to September 1941 in reports of Pennsylvania Department of Forests and 

Waters.

Gage. Water-stage recorder. Datum of gage is 422.63 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Prior to Jan. 29, 1930, chain gage at same 

site and datum.

Average discharge. 27 years (1929-56), 285 cfs.

Extremes.--Maximum discharge during year, 10,000 cfs Oct. 14 (gage height, 10.90 ft), from 

rating curve extended above 6,500 cfs; minimum, 21 cfs Sept. 12, 22, but may have been 

less during period of ice effect.

1929-56: Maximum discharge, 18,800 cfs Aug. 24, 1933 (gage height. 14.05 ft), from 

rating curve extended above 6,500 cfs; minimum, 3.9 cfs Dec. 1, 1930 (gage height, 

0.72 ft); minimum daily, 10 cfs Dec. 24, 25, 1930, Sept. 30, 1941.

Maximum stage known, 20.34 ft July 22, 1927. from floodmark (discharge, about 

37,000 cfs).

Remarks. Records good except those for periods of ice effect, which are fair, 

lation at low flow by mills above station.

Rating table, water year 1955-56, except periods of Ice effect (gage

height, In feet, and discharge, in cubic feet per second)

(Shifting-control method used Mar. 1-6)

Some regui.o

1.4

Z .2 

2.6

30

95

188

332

525

3.0 

5.0 

7.0

8.1

735

2,010

3,730

4,940

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14,

15

16

17

1819"

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

59

60

62 *56

51

79

117

126

111

88

74

66

64

4.940

3,690

1,140

762

600

510

396

324

279

249

242

245

212

191

174

174

185 

188

15,514

500

2.50

2.88

Nov.

159

147

149

149

135

126

126

124

115

119

161

245

252

203

180

*258

515

315

290

279

260

256

232

225

203

191

188

183

156

172

6,115

204

1.02

1.14

Dec.

169

147

142

147

142

130

120

115

110

105

92

94

90

*86

82

80

78

82

190

82

78

75

74

74

90

110

90

80

75

72

11

3,072

99.4

0.497

0.57

Jan.

70

69

69

75

1OO

95

84

74

68

66

75

95

110

85

74

*70

75

72

70

68

66

68

70

65

64

62

61

60

60

90 

450

2,680

86.5

0.432

0.50

Feb.

220

5"00 2OO

650

4OO

600

i.ioo

1,050

872

735

762

9OO

669

525

505

505

425

671

818

610

515

350

280

*Z50

350

550

401

411

350

16,174

558

2.79

3.01

Mar.

307

311

294

271

245

271

461

880

845

647

555

540

510

803

950

762

674

585

520

465

455

520

730

930

730

652

590

520

520

525

535

17,583

567

2.84

3.27

Apr.

460

*430

564

790

642

580

1,840

1.890

1,200

900

735

636

555

485

450

445

396

350

315

282

252

242

400

354

315

286

286

267

270

418

17,035

568

2.84

3.17

May

307

353

580

460

396

359

530

420

*341

324

303

298

1.010

735

540

490

406

377

332

286

249

232

221

203

183

169

172

177

151

142

156

10,902

352

1.76

2.03

June

159

164

248

195

147

133

122

113

105

107

101

90

82

79

79

70

72

94

*115

89

120

116

83

259

125

84

244

171

97

77

3,740

125

0.625

0.70

July

72

75

93

79

84

107

105

84

77

70

63

62

141

95

86

85

147

95

74

459

1,660

696

636

445

332

267

206

166

144

122 

*107

6,934

224

1.12

1.29

Aug.

101

95

86

79

815

590

669

406

279

215

174

149

137

137

119

105

97

91

86

91

179

146

95

82

72

68

70

68

111

101

72

5,583

180

O.9OO

1.04

Sept.

60

68

82

65

57

57

75

70

54

55

*49

40

53

49

45

77

84

62

53

48

47

40

42

77

61

48

51

55

82

68

1,774

59.1

0.296

0.33

Calendar year 1955 : Max 4.94O Mln 2O Mean 268 Cfsm 1.34 In. 18. 2O

Water year 1955-56: Max 4,940 Min 4O Mean 293 Cfsm 1.46 In. 19.93

Peak discharge (base. 5.OOP cfs). Oct. 14 (7:3O p.m.) 10.OOO cfs (1O.9O ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 7 to Feb. 7, Feb. 22-25.
424 SUSQUEHANNA RIVER BASIN

Clark Creek near Carsonville, Pa.

Location. Lat 40°27'35" , long 76°45'10" , on right bank 0.3 mile downstream from DeHart 

Dam (formerly Clark Creek Dam), 1^ miles southeast of Carsonville, Dauphin County and 

15 miles upstream from mouth.

Drainage area. 22.5 sq mi.

Records available. September 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 552.32 ft above mean 

sea level, datum of 1929, supplementary adjustment of 1943. Prior to Jan. 6, 1939, 

water-stage recorder at site about 1,700 ft upstream at datum 9.49 ft higher. Jan. 6, 

1939, to July 27, 1940, chain gage at site 100 ft downstream at different datum.

Average discharge . 19 years, 38.5 cfs (adjusted for storage and diversion since 1941).

Extremes. Maximum discharge during year, 105 cfs June 11; maximum gage height, 2.36 ft 

July 20; minimum discharge, 2.1 cfs July 18 (gage height, 0.88 ft).

1937-56: Maximum discharge, 988 cfs Nov. 13, 1937, from rating curve extended above 

400 cfs; maximum gage height, 4.81 ft May 27, 1946; minimum daily discharge, 0.2 cfs 

Jan. 29 to Feb. 3, 1940.

Remarks. Records good except those below 4.0 cfs, which are fair. Plow regulated by

De Hart Reservoir, formerly Clark Creek Reservoir (see p. 440)- Diversions from reservoir to city of Harrlsburg.

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

0.9 

1.0 

1.2

2.2 

3.3 

6.5

1.4

1.6

1.7

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4

5 

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

7.6

*6 9 

6.9

6.7

6 . 8 

7.3

6.8

4.7

4.7

6.1

6.6

7.6

23 4.6

10.5

7 .5

11

9.6

8.6

8.4

8.4

8.4

8.1

8.6

7.9

13.5

8.1

8.3

8.5

6 .5

6.0

254.2

8.20

23.6

Nov.

8.4

5 .6 

10.5

8.3

7 .8 

»5.4

875

8.0

8.1

8.1

6.0

9.5

S.2

8.5

8.6

8.5

7 .7

9.2

5.6

5.4

7.2

11.5

8.2

8.6

5.4

8.0

8.4

7.4

7.6

7.7

235.4

7.85

23.1

Dec.

7.9

7.0 

7.6

7.7

7 .6

7.4

7.3

7.8

5.2

5.2

5.2

8.8

BTT

S.I

»7.5

4.7

4.7

6.9

6.8

7 .0

7 .3

4.6

771

7 .1

4.6

7.2

6.3

6.8 8 . 2

4.6

203.4

6.56

22.7

Jan.

4.6

6.3

4.7

6.8

4.6

4.6

6.6

4.7

4.6

4.6

6.5

4.6

4.6

7.3

4.4

4.4

4.4

*6.6

4.7

4.7

9.4

4^7

4.6

7.2

4.4

4.4

7.5

4.6

165.1

5.33

22.9

Feb.

4.4

6.9

4.7

7.2

5.2

5.2

5.2

5.4

6.1

6.5

6.0

8.2

576

5.6

8.2

5.2

4.0

6.1

4.4

4.3

*4.1

5.6

3.3

3.1

4.4

3.1

5.0

150.4

5.19

24.1

Mar.

3.0 

T74

3.4

4.0

3.7

4.3

5.2

7.2

4.4

4.6

7 .3

4.4

7.7

5.8

6.8

5.1

4.9

9.3

4T6

4.6

4.6

7.4

5.1

4.9

6.8

4 7

4.7

4.7 

6.4

4.6

163.5

5.27

24.2

Apr.

4.6

4.3

*T73

4.3 

6.3

6.7

6.5

7.4

5.4

5.2

5.1

5.1

5.1

5.1

5.9

4.7

4.7

4.6

5.8

4.4

4.4

7.5

4.7

4.6

4.6

6.5

4.4

5.3

9^0

164.3

5.48

22.4

May

5.1

6.0

7.3

5.2

*8.2

5.2

5.2

5.2

7.1

5.1

5.2

7.3

4.9

4.9

4.7

7 .0

4.6

4.6

9.0

476

4.7

4.6

6.8

4.6

4.6

7 .1

4.3

4.4

4.7

173.0

5.58

23.2

June

7.2

5.1

8.7 

4.7

4.9

4.9

4.9

4.9

5.1

11.5

4.9

4.9

4.9

6.6

4.9

4.9

4.9

4.7

S.8

4.7

*6.6

4.6

4.6

7.8

4.6

4.7

4.7

6.1 4 .6

169.5

5.65

25.9

July

4.6

5.5

4.7 

4.7

4.7

4.6

4.7

9.4

4.6

4.6

4.6

6.5

4.6

4.7

5.6

4.2

3.1

T74

14.5

4.9

4.6

4.6

6.7

4.6

4.1

6.4

4.1

4.1 

7.8

4.1

167.6

5.41

25.9

Aug.

4.1

6.4

4.1 

4.6

9.3

4.3

4.1

4.1

5.8

4.1

4.1

8.2

4.3

4.3

4.3

6.3

4.3

4.3

7.4

4.4

4.6

4.7

6.6

4.7

4.7

8.5

4.7

4.7 

4.7

161.7

5.22

27.4

Sept.

4.7

4.7

8.6 

4.7

5.2

4.6

4.7

*4.6

4.6

7.1

4.4

T74

6.6

4.7

4.6

9.7

4.4

4.4

4.4

7.1

4.4

4.7

9.9

474

4.4

4.4

4.7

4.6 

4 .6

159.0

5.30

24.3

Adjusted for diversion and change In reservoir contents

Mean 

Cf am 

In.

59.3 

2.64 

3.04

41.2 

1.83 

2.04

18.7 

0.831 

0.96

11.6 

0.516 

0.59

43.7 

1.94 

2.09

64.6 

2.87 

3.31

63.5 

2.82 

3.15

49.3 

2.19 

2.52

Observed

Calendar year 1955: 

Water year 1955-56:

Max 23 Mln 3.6 Mean 5.73 

Max 23 Mln 3.0 Mean 5.92

24.2

1.08 

1.20

19. 4 

0.862 

0.99

10.2 

0.453 

0.52

6.74 

0.300 

0.34

Adjusted

Mean 35.7 Cfsm 1.59 In. 21.54 

Mean 34.3 Cfsm 1.52 In. 20.75

* Discharge measurement made on this day.

t Diversion from DeHart Reservoir for municipal supply, equivalent In cubic feet per second; furnished by city of Harrlsburg.
SUSQUEHANNA RIVER BASIN 425

Conodogulnet Creek near Hogestown, Pa.

Location.--Lat 40°15'10", long 77°01'15", on left b.ank 1,000 ft upstream from highway 

bridge, three-eighths of a mile downstream from Hogestown Run, and 1 mile northeast of 

Hogestown, Cumberland County.

Drainage area. 470 sq ml.

Records available. October 1931 to September 1956 In reports of Geological Survey. Sep- 

"929 to September 1941 In reports of Pennsylvania Department of Forests and

___/alia 

tember~T9lTS 

Waters.

Gage. Water-stage recorder. Datum of gage Is 351.00 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Prior to Aug. 3, 1931, chain gage at site 1,000 

ft downstream at same datum.

Average discharge. 27 years (1929-56), 550 cf s .

Extremes. Maximum discharge during year, 7,260 cfs Oct. 15 (gage height, 8.50 ft); minimum, 110 cfs Sept. 23, but may have been less during period of Ice effect.

1929-56: Maximum discharge, 15,700 cfs Mar. 12, 1952 (gage height, 12.16 ft); minimum, 24 cfs Dec. 16, 1930; minimum dally, 26 cfs Dec. 23, 1930.

Remarks. Records good except those for periods of Ice effect, which are fair, 

diurnal fluctuation at low flow caused by mills above station.

Rating tables, water year 1955-56, except periods of Ice effect (gage

height, in feet, and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 15-23, June 21-24, 26, 27, 

June 29 to July 4, July 11-16, July 30 to Aug. 5)

Some

Oct. 1 to Apr. 8

1.2 

1.5 

2.0 

5.0

127

220

422

950

4.0 

6.0 

8.4

1,690

5,720

7,090

Apr. 9 to Sept. 50

12Z 

212

2.0 

5.0

382

950

Note, Same as preceding 

table above 3.0 ft.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

2Z

25

24

25

26

Z7

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

261

242

210

193

185

200

*238

300

304

300

257

227

Z03

3,080

7.090

3,430

1,600

1,160

918

765

625

546

488

456

444

413

383

358

354

358

350

25,936

837

1.78

Z.05

Nov.

329

316

296

296

284

273

265

261

253

253

345

413

405

379

350

*362

605

6ZO

528

506

478

501

510

488

448

409

379

362

333

246

11,493

383

0.815

0.91

Dec .

311

288

276

280

280

265

246

235

235

224

Z06

193

206

*203

190

180

170

180

2ZO

170

160

155

150

150

170

Z10

180

160

150

155

150

6,348

205

0.436

0.50

Jan.

145

140

135

140

160

160

150

135

130

130

170

230

220

ZZO

189

*174

186

177

158

*167

170

170

174

160

150

140

135

130

130

210

636

5,521

178

0.379

0.44

Feb.

488

409

687

982

765

1,130

2.850

2,300

Z,100

1,450

1,340

1,650

1,340

1,020

885

855

765

952

1,610

1,500

982 *795

655

595

620

795

710

640

575

31,245

1,077

2.29

2.47

Mar.

501

488

478

456

422

422

595

1,170

1,870

1,300

1,020

918

885

1,310

2.570

1,740

1,410

1,190

1,020

918

918

1,050

1,260

1,450

1,300

1,050

918

795

765

825

31,839

1,027

2.19

2.52

Apr.

738

*666

710

1,350

1,190

982

1,620

2,750

2,050

1,490

1,190

1,020

885

765

694

678

634

568

512

474

427

402

458

507

464

437

427

402

382

417

25,289

843

1.79

2.00

May

412

407

744

795

612

529

573

578

*464

412

392

382

821

958

644

568

507

443

407

363

326

309

291

279

254

239

239

250

254

227

227

13,886

448

0.953

1.10

June

262

300

335

340

266

231

212

202

192

192

185

172

163

157

1ST

166

160

178

212

*198

178

163

163

250

549

262

235

304

283

209

6,676

223

0.474

0.53

July

185

181

195

270

512

673

711

524

402

331

287

250

239

239

235

231

667

584

417

387

5,080

3,080

1,680

1,080

855

666

507

402

335

279

*242

19,726

636

1.35

1.56

Aug.

220

202

185

163

756

1,580

1,300

1,020

729

534

412

335

291

266

250

227

205

195

178

175

246

392

300

216

185

172

160

157

163

166

157

11,537

372

0.791

0.91

Sept.

154

175

151

148

148

178

198

157

145

135

*130

125

125

127

127

138

148

172

154

140

132

122

122

138

143

135

127

138

163

172

4,367

146

0.311

0.35

Calendar year 1955: Max 7,090 Min 98 Mean 493 Cfsm 1.05 In. 14.24

Water year 1955-56: Max 7,090 Min 1ZZ Mean 530 Cfsm 1.13 In. 15.34

Peak discharge (base, 4.000 efa). Oct. 15 (2 p.m.) 7,260 cfs (8.50 ft); July 21 (11 p.m.) 4,710 

=fs (6.81 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 15 to Jan. 14, Jan. 24-30.
426 SUSQUEHANNA RIVER BASIN

Susquehanna River at Harrisburg, Pa.

i.--Lat 40°15'10" long 76°52'30", on left bank at Nagle Street, 500 ft upstream 

Count. pnaiT 111 ' £ downstream from Walnut Street Bridge in Harrisburg, Dauphin 

bounty, and 1.1 miles upstream from Paxton Creek

Drainage area.--24.100 sq mi approximately

Records available.--October 1890 to September 1956.

Gaga.--Water-stage recorder and concrete-slab control. Datum of gage is 290.01 ft above 

mean sea level datum of 1929, supplementary adjustment of 1943. Supplementary wi%-

a. 1^n!agset^e1. aaSe t ^e st a^1d I?umt ^ ^ ^ tO ' l ' 193 °' & <U gage 

Average discharge. 66 years, 34,600 cfs

Extr§mes.-Maximum discharge during year, 338.000 cfs Mar. 10 (gage height, 16.66 ft at 

^agle Street arid 17.95 ft at Walnut Street ; minimum. 6,920 cfl Oct. 5 (gage height

taon at Nagle Street and 3 ' 29 ft at Walriut Streetf. ' 

MO } a9":195 ° : Maximum discharge, 740,000 cfs Mar. 19, 1936 (gage height, 29.23 ft at 

h,iL£ an fc at Walriut Street); minimum, 1,600 cfs Nov. 29, 1930, caused 

by temporary storage behind ice jam upstream (gage height, 2.48 ft at Nagle Street and 

G.OO IL at walnut otreet).

Maximum stage known during period 1786 to 1890 26.8 ft at Walnut Street June 2 

1889 (discharge, about 620,000 cfs). ' ' ' 

Remarks. Records good except those for periods of ice effect, which are fair. Records of 

chemical analyses and water temperatures for the water year 1956 are given in WSP 1450. 

visions (water years) . All records prior to Oct. 1, 1923, have been revised. The revision was made in connection with the power project at Conowingo, Md., a project under 

the jurisdiction of Federal Power Commission. A complete set of the revised records is 

on file at the Geological Survey, Washington, D. C., and also at the Pennsylvania Department of Forests and Waters, Division of Hydrography, Harrisburg, Pa. WSP 711:

Revis

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

5.2 

3.5 

4.0 

5.0

6,400

10,600

20,000

44,300

12 .0

16.3

99,400

211,000

327,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

8,120

7,980

7,700

7,840

7,51ff

7.180

7,440

13,300

18,800

18,000

21,900

21,700

18 , 800

32,500

134 , 000

189,000

258,000

220,000

148,000

82,000

83,200

61,300

48,700

40,200

35,000

32,200

31,000

30,700

30,000

29,300 

36,400

1,687,570

54,440

2 .26

2 .60

Nov.

68,600

92,70O

70,700

56,500

45,800

40,200

36,200

35,000

31,700

29,000

28,100

27.600

28,300

28 , 100

27,600

35,000

73,600

121,000

12 1 , 000

95,000

73 , 600

56,500

50,200

45,800

42,900

44,300

44 , 300

41,500

37,500

33,700

*1,562

52,070

2.16

2.41

Dec.

31,400

28,800

26,700

25,2OO

24,500

23,900

27,000

53.700

32,200

28,300

26,000

23,500

21,500

20,500

20,000

15,500

10,500

13,000

17,000

14,000

12,000

10,000

9,800

9,400

10,000

11,000

12,000

13,000

13,500

15^500

594,400

19,170

0.795

0.92

Jan.

12,500

12,OOO

12 , 500

13 , 000

14 , 000

13,500

13 , 000

10,500

11,000

12,000

13,000

14,000

15,000

13,500

18,000

23,500

24,000

19,500

18,500

16,500

14,500

14,000

15,000

11,500

12,000

10,500

10,000

10,000

10,300

11,300 

15,000

433,600

13,990

0.580

0.67

Feb.

14,500

18,000

17,200

17,200

18,500

20,600

27,000

38,000

42,900

41,000

47,200

56,500

64,500

53,300

45,800

42,900

44,300

47,200

64,200

73,600

72,200

59,000

46,000

39,000

32,000

38,000

78,100

102,000

83,000

________

tl,343.7

46,330

1.92

2 .07

Mar.

64,500

50,200

48,700

59,700

75,100

77,900

92,700

177,000

*287,000

324,000

242,000

167,000

133,000

119,000

108,000

99,400

90,400

77,900

66,100

54,900

50,200

48,700

47,200

48,700

53,300

51,800

50,200

47,200

45,800

47,200 

47,200

*2,952

95,230

3.95

4.56

Apr.

45.800

45,800

45,800

57,300

127,000

199,000

204,000

199,000

209,000

192,000

157,000

138,000

121,000

108,000

97,200

88 , 100

83,200

85,700

90,400

85,700

75 , 100

64,500

58 , 100

56,500

58 , 100

59,700

54,900

 51,800

48,700

50,200

*2,956.6

98,550

4.09

4.56

May

54,900

59,700

62,900

67,600

64,5OO

59,700

58 , 100

64,500

67,600

62,900

53,300

48,700

48,700

73,600

104,000

90,400

70,700

56,500

48,700

45,800

41,500

37,500

33,700

31,700

29,800

27,200

25,400

24,300

23,600

23.200 

23,200

$1,583.9

51,090

2 .12

2.44

June

23,400

23,900

29,500

37,500

40.200

38 , 800

36,200

32 , 000

28,300

25,200

23,400

22 , 100

20,800

18,600

17 , 600

16,200

15.600

16,600

18,200

19,000

21,300

20,200

18,200

18,600

17 , 000

17,600

20,000

20,000

18,400

17,800

692,200

23,070

0.957

1.07

July

16,000

14 . 100

15,600

21,500

32,400

33,400

29,500

27,200

24,500

23,900

20,800

19,000

17,600

16,200

15,400

16,600

15,800

19,600

17 , 800

18,000

25,900

58.800

37,500

37,500

56,200

55,400

55,200

53,700

31,000

26,700 

22,300

771,100

24,870

1.05

1.19

Aug.

19,200

16,600

14,700

15,200

15,200

15,600

24,1OO

42 , 900

58 . 100

5O 200

37,500

32,000

27,400

25,000

26,500

24,500

20,800

18,400

16,200

15,400

15,200

15,400

14,700

13,200

12,000

10 , 900

10,400

10,300

10,200

10^400

644,400

20,790

0.863

0.99

Sept.

10,800

16,200

20,800

19,200

18 , 600

17 , 600

17,200

19,400

18 , 000

15,000

15,700

12,100

11,100

10,500

10.200

10,500

10,200

10,600

12,700

15,800

18,800

19,000

18,000

17,600

18,800

21,900

20,400

22.100

20,400

17,600

484,400

16,150

0.670

0.75

Calendar year 1955: Max 258,000 Mln 2,750 Mean 33,420 Cfsm 1.39 In. 18.82

Water year -1955-56: Max 324,000 Mln 7,180 Mean 42,910 Cfsm 1.78 In. 24.23

Peak discharge (base, 180,000 cfs).--Oct. 17 (5 p.m.) 263,000 efs (13.97 ft); Mar. 10 (5 a.m.) 

338,000 cfs (16.66 ft); Apr. 9 (5 p.m.) 211,000 cfs (12.00 ft).

* Discharge measurement made on this day.

* Expressed In thousands.

Note.--Stage-discharge relation affected by Ice Dec. 11 to Jan. 28, Jan. _>1, Feb. 1, 5, 7, 8, 10, 

22-25 (fragmentary gage-height record Jan. 21, 22).
SUSQUEHANNA RIVER BASIN 427

Yellow Breeches Creek near Camp Hill, Pa.

Location. Lat 40°13'30", long 76°53'50", on left bank: 50 ft downstream from single span 

highway bridge, 150 ft downstream from Olmsted's Mill dam, 1 mile southeast of Camp 

Hill, Cumberland County, and 3.1 miles upstream from mouth.

Drainage area. 216 sq ml.

Records available. October 1918 to December 1919 and June 1954 to September 1956 in reports of Geological Survey. March 1909 to December 1919 In reports of Water Supply 

Commission of Pennsylvania. Prior to June 1954, published as "at Olmsted's Mill."

Gage. Water-stage recorder. Datum of gage Is 301.49 ft above mean sea level, datum of 

 1929, supplementary adjustment of 1943. March 1909 to December 1919 chain gage at 

bridge 50 ft upstream at same datum.

Average discharge. 10 years (1910-16, 1917-19, 1954-56), 300 cfs.

Extremes.--Maximum discharge during year, 2,390 cfs Oct. 14 (gage height, 7.07 ft); minimum, 58 cfs Jan. 27 (gage height, 0.49 ft).

1909-19, 1954-56: Maximum discharge, 5,550 cfs Aug. 22, 1915 (gage height, 8.61 ft, 

from graph based on gage readings), from rating curve extended above 3,700 cfs; minimum, 31 cfs Aug. 2, 1954 (gage height, 0.31 ft); minimum daily, 79 cfs Aug. 2, 1954.

Flood of July 22, 1953, reached a stage of 9.4 ft, from floodmarks (discharge, 

3,940 cfs, from rating curve extended above 2,500 cfs).

Remarks. Records good except those for periods of ice effect, which are fair. The Mechanlcsburg Water Co. diverted water at a point about 4 miles above station for municipal water supply, equivalent to a mean discharge at station of 1.0 cfs. Some diurnal 

fluctuation at low flow caused by mill above station.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

0.8 

1.0 

2.0 

4.9

113

155

429

1,430

ober 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

155

151

142

133

135

157

*164

178

*180

155

142

135

135

*1,410

*1,340

727

509

429

361

320

294

272

253

248

245

234

220

212

220

343

283

9,882

319

1.48

1.70

Nov.

234

222

214

214

207

195

190

195

190

188

292

248

227

214

200

222

237

212

204

*210

207

214

210

202

195

190

190

185

*183

160

6,271

209

0.968

1.08

Dec.

183

1S8

188

190

174

178

176

173

173

171

166

164

160

*157

155

150

145

155

155

140

130

135

145

153

153

153

140

125

130

135

130

4,870

157

0.727

0.84

Jan.

135

137

136

142

140

140

137

135

131

153

190

197

176

155

146

*146

148

140

135

144

142

140

137

135

127

130

129

125

129

258

 

4,743

153

0.708

0.82

Feb.

185

213

404

369

336

628

930

574

493

445

498

676

493

414

398

376

343

470

542

414

373

*337

317

305

340

445

355

325

302

12, 300

424

1.96

2.12

Mar.

280

280

277

269

256

266

340

486

461

373

367

398

398

707

778

608

608

542

509

461

461

477

574

693

608

542

525

477

477

493

493

14,484

467

2.16

2.49

Apr.

429

*398

429

558

445

414

751

1,020

761

659

591

558

509

461

429

429

398

376

373

346

320

314

349

340

325

305

302

291

291

286

13,457

449

2.08

 2.32

May

264

269

355

311

277

264

366

340

*288

280

277

277

546

477

361

352

331

320

305

288

272

264

264

253

237

232

243

256

227

222 230"

9,248

298

1.38

1.59

June

264

305

349 302-

245

232

220

204

197

204

192

183

176

178

220

185

169

192

204

178

*173

183

173

178

210

171

169

164

151

144

6, 115

204

0.944

1.05

July

142

142

160

183

230

195

190

171

169

155

144

138

137

133

129

166

227

171

139

140

403

367

227

195

185

171

160

153

144

135

133

5,534

179

0.829

0.95

Aug.

133

*129

127

TS9

610

37S

261

214

190

173

164

155

151

151

148

146

140

140

135

140

197

204

160

148

140

137

135

133

133

131

140

5,472

177

0.819

0.94

Sept.

142

137

137

131

137

240

274

192

162

143

133

*133

133

129

140

151

157

169

146

144

136

129

133

146

*141

134

TIB- 127

154

146

4,521

151

0.699

0.78

Calendar year 1955: Max 1,410 Mln 90 Mean 229 Cfsm 1.06 In. 14.40

Water year 1955-56: Max 1,410 Mln 125 Mean 265 Cfsm 1.23 In. 16.68

Peak discharge (base. 1,250 ef3).--0et. 14 (6:30 p.m.) 2,390 cfs (7.07 ft)j Feb. 6 (11 p.m.) 

1,36O cfs (4.69 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 15-17, 20-23, Dec. 27 to Jan. 1.
428 SUSQUEHANNA RIVER BASIN

Swatara Creek at Harper Tavern, Pa.

Location. Lat 40"24'10", long 76°34'40", on left bank 10 ft downstream from bridge on 

State Highway 934, at Harper Tavern, Lebanon County, 6 miles northwest of Annville, 

and 8j miles downstream from mouth of Little Swatara Creek.

Drainage area. 333 sq ml.

Records available October 1919 to September 1921 and October 1931 to September 1956 in 

reports of Geological Survey. December 1918 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 356.68 ft above mean sea level, datum of 

T929, supplementary adjustment of 1943. Prior to July 16, 1931, chain gage at same 

site and datum.

Average discharge . 37 years (1919-56), 569 cf s .

Extremes. Maximum discharge during year, 7,370 cfs Oct. 14 (gage height, 8.83 ft); minimum, 70 cfs Jan. 27 (gage height, 0.53 ft).

1918-56: Maximum discharge, 25,300 cfs Aug. 24, 1933 (gage height, 17.53 ft); minimum, 8 cfs Sept. 24, 25, 1932.

Maximum stage known, 25.6 ft June 1, 1889, from floodmark (discharge, 53,000 cfs, 

from rating curve extended above 25,000 cfs).

Remarks. Records good except those for periods of ice effect, which are fair. Some regulation at low flow by mills above station.

Revisions (water years) . WSF 726: Drainage area. WSP 1202: 1948.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

0.5

.7

1.0

54

113

233

2.0 705

3.0 1,290

5.8 3,870

0.5

.7

1.0

142

274

2.0 

4.4

800

2,520

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

349

254

210

185

175

1,300

1,510 

1,190 

*888

705

572

490

428

5,850

5,760

2,800

5,720

2,540

1,580

1,160

942

805

705

640

626

555

480

455

438

1,200

2 " 020

36,2fiS

1,170

3.51

4.05

Nov.

1,120

860

755

705

596

535

495 

480 

428

409

898

645

547

509

466

580

*860

645

611

626

586

596

519

514

456

428

414

595

545

 540-

17,561

579

1.74

1.94

Dec.

308

298

303

316

31?

272

250 

245 

245

228

215

*210

210

270

220

250

245

202

189

150

125

160

149

165

177

181

155

115

1 105

120

110

6,460

208

0.625

0.72

Jan.

100

110

113

127

127

124

120 

100 

90

110

130

125

120

115

110

115

120

100

*95

113

115

120

95

90

92

82

75

73

84

209

461

5,760

121

0.563

0.42

Feb.

200

169

590

612

405

1,050

2,500 

1,760 

1,360

890

945

1,660

1,080

850

740

696

597

1,120

1,530

1,080

*860

*630

570

520

614

724

575

619

592

25,516

880

2.64

2.85

Mar.

469

479

479

454

415

425

555 

1,100 

1,510

980

1,040

1,010

890

1,850

2,120

1,590

1,340

1,140

980

860

860

1,010

1,210

1,340

1, 110

1,010

920

788

752

776

680

29,936

966

2.90

3.54

Apr.

602

548

552

516

479

*423

630 

1,110 

950

920

890

830

729

658

608

641

597

511

454

408

374

359

469

459

569

345

350

526

555

762

17,184

575

1.72

1.92

May

608

559

890

696

630

580

*860 

668 

545

511

490

454

821

770

559

526

464

433

398

364

335

512

535

405

298

260

260

295

242

215

540

15,117

488

1.47

1.69

June

569

418

946

652

511

449

574 

321 

293

295

418

302

242

215

202

176

163

163

163

*146

208

265

567

504

408

265

242

288

202

171

9,736

325

0.976

1.09

July

165

W

2,220

674

663

718

575 

485 

980

597

444

413

586

619

579

526

516

265

224

228

918

663

464

394

316

274

274

256

242

206

171

15,260

492

1.48

1.70

Aug.

159

*150

154

122

195

517

654 

521 

242

206

176

159

150

165

155

134

119

107

107

122

278

260

159

126

111

93

95

93

406

293

1,080

7,064

228

0.685

0.79

Sept.

364

288

228

193

167

601

1,890 

526 

569

298

260

237

206

*197

196

451

312

288

206

578

296

255

255

472

544

251

219

279

290

242

10,514

350

1.05

1.17

Calendar year 1955: Max 11,400 Min 20 Mean 517 Cfsm 1.55 In. 21.09

Water year 1955-56: Max 3,830 Min 73 Mean 531 Cfsm 1.59 In. 21.68

Peak discharge (base, 4,800 cfs). Oct. 14 (9 p.m.) 7,370 cfs (8.85 ft). 

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Nov. 29, 50, Dec. 15-16, 20-22, Dec. 27 to Jan. 2, 

Jan. 8-19, 21, 25-28, Feb. 1, 6, 7, 22-24 (no gage-height record Jan. 10-14).
SUSQOEHANNA RIVER BASIN 429

Manada Creek at Manada Gap, Pa.

Location. Lat 40°23'50", long 76°42'35", on left bank Just upstream from highway bridge 

at Manada Gap, Dauphin County, 3 miles northwest of Shellsville and 9 miles upstream 

from mouth.

Drainage area. 13.5 sq mi.

Records available. September 1937 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 516.07 ft above mean 

sea level, datum of 1929.

Average discharge. 19 years, 23.4 cfs.

Extremes. Maximum discharge during year, 477 cfs Oct. 14 (gage height, 4.52 ft); minimum, 

1^7 cfs Aug. 28; minimum gage height, 1.27 ft Jan. 23.

1937-56: Maximum discharge, 2,650 cfs Aug. 16, 1942 (gage height, 8.60 ft), from 

rating curve extended above 790 cfs; minimum, 0.3 cfs Dec. 25, 1943; minimum daily, 

0.8 cfs Sept. 29, Oct. 9, 1941.

Remarks. Records fair.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, in cubic

feet per second)

(Shifting-control method used July 24 to Sept. 30; stage-discharge relation 

affected by Ice Dec. 12-16, 19, 20, 27, 28, Jan. 7, 8, 13-19, 23-29, Feb. l)

Oct. 1-14 Oct. 15 to Sept. 30

1.45 5.3

1.6 9.4

1.8 16.5

2.0 25

2.3

2.7 

3.1 

3.6

83

138

234

1.15

1.3

1.5

1.7

1.8 

3.6

7.5

16

2.0 32

2.3 54

2.6 84

2.9 118

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cfsm

In.

Oct.

£1.8

*7.3

e;.e

e;.s

e;.3

40

33

3!.

24

20

17.5

15.5

13.5

230 113"

80

e;;

64

50

38

31L

2(5

2?.

21

11!

i:;.5

13.5

12.5

1:5.5 3''

31

1,129.2

3(5.4

2,70

3.11

Nov.

26

24

23

21

18

*17

16.5

15.5

14.5

1575"

30

25

19.5

19

18.5

24

23

20

21

22

22

22

21

19.5

19

19

18

17.5

16.5 

15

597.5

19.9

1.47

1.65

Dec.

14.5

14

13.5

13.5

12.5

11.5

11.5

11

11

10.5

9.5

*9.0

8.5

8.8

8.3

7.8

8.1

7.8

7.6

7.0

7.5

7.0

8.8

8.5

8.1

7.5

6.3

6.0

F73

6.5

6.3

284.7

9.18

0.680

0.78

Jan.

6.5

6.1

6.3

6.5

6.5

6.3

5.9

5.5

5.7

7.8

7.5

7.3

6.7

5.5

5.0

5.2

5.5

4.8

5.3

*5.7

5.5

5.3

4.8

4.6

5.0

4.4

4.2

4.1

475

 135" R 

a . b

185.4

5.98

0.443

0.51

Feb.

5.7 8-70

13

9.5

11

28

44

47

45

45

61

73

54

44

39

32

29

52

47

42

*37

»32

28

25

31

28

24

24

22

980.2

33.8

2.50

2.70

Mar.

19

19

19

18

16.5

18

26

47

48

42

40

37

34

74

81

68

57

46

39

34

34

36

42

46

41

39

35

32

31 

30

1,176.5

38.0

2.81

3.24

Apr.

25

21

22

21

19

*18

38

5650"

45

42

38

35

32

30

28

24

22

19.5

18

17

17

22

18

16

16

16

15

TT

38

795.5

26.5

1.96

2.19

May

27

39

49

44

39

36

*45

34

31

30

27

26

35

27

27

24

22

21

18.5

17.5

16

15.5

15.5

13.5

12.5

11.5

13

12.5

10.5 

9.9 979"

759.3

24.5

1.81

2.09

June

13

14

16.5

11

9.9

9.1

8.5

7.8

7.5

7.8

7.5

6.8

6.3

6.3

6.1

5.9

5.8

6.8

6.5

*6.3

15

8.5

6.9

11.5

7.3

6.5

11

7.0

6.1 

5.7

254.9

8.50

0.630

0.70

July

28~ 5.5

57

25

22

21

17.5

15.5

20

14.5

12.5

12.5

18.5

15.5

13

15

14.5

12

11

16

62

44

38

28

19

21

18

16

13.5 

10.5

8 5

645.0,

20.8

1.54

1.78

Aug.

7.5

*6.5

5.5

5.3

20

18.5

13

8.5

6.8

6.5

5.5

5.1

5.5

5.9

4.9

4.6

3.9

4.1

4.1

4.8

9.3

4.6

3.6

3.2

2.5

2.4

2.3

2.4

3.4 

6.2

9.3

195.7

6.31

0.467

0.54

Sept.

4.1

5.1

3.0

2.3

2.1

22

T3".5

*10.5

8.1

7.0

6.5

5.9

5.5

5.7

7.3

8.1

10

9.3

7.9

12.5

9.1

9.1

10.5

13.5

11

10.5

10.5

14

11.5 

10.5

266.6

8.89

0.659

0.73

Calendar year 1955: Max 230 Mln 2.5 Mean 19.4 Cfsm 1.44 In. 19.48

Water year- 1955-56: Max 230 Mln 2.1 Mean 19.9 Cfsm 1.47 In. 20.02

(3.48 ft)T

Discharge measurement made on this day.
SUSQUEHANNA RIVER BASIN

West Conewago Creek near Manchester, Pa.

Location. Lat 40°04'55", long 76 0 43'10", on left bank 500 ft upstream from bridge on 

State Highway 24 and 1.5 miles north of Manchester, York County.

Drainage area. 510 sq mi.

Records available . October 1928 to September 1956. Prior to October 1931, published as 

Conewago Creek near Manchester.

Gage. Water-stage recorder. Datum of gage is 263.68 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943.

Average discharge . 27 years (1929-56), 568 cf s.

Extremes.--Maximum discharge during year, 14,200 cfs Oct. 14 (gage height, 12.92 ft); minimum, 24 cfs Jan. 18 (gage height, 1.39 ft).

1928-56: Maximum discharge, 47,600 cfs Aug. 24, 1933 (gage height, 24.14 ft); minimum, 1.9 cfs Oct. 13, 1941; minimum gage height, 1.16 ft Aug. 7, 8, 1930.

Remarks.--Records excellent except those for periods of ice effect, which are fair. Some 

dTurnal fluctuation at low flow caused by gristmills above station.

Revisions. WSP 741: Drainage area.

Rating table, water year 1955-56, except periods of ice effect (gage

1.6 

Z.O 

2.5 

3.0

45

103

204

355

4.0 

5.0 

7.0 

10.0

830

1,570

3,850

8,540

Discharge, in cubic feet per second, water year October 1955 bo September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

Z2

Z3

Z4

Z5

26

Z7

Z8

Z9

30

31

Total

Mean

Cfsm

In.

Oct.

154

180

148

1Z4

*106

118

18Z

307

366

273

190

154

134

7,350

8,480

1,980

1,140

830

671

551

466

406

366

330

3ZO

307

276

25Z

Z58

716

895

Z8,030

904

1.77

Z.04

Nov.

488

344

301

304

Z91

Z50

Z30

Z36

238

Z33

1,150

985

551

44Z

390

369

40Z

358

301

307

*338

398

40Z

355

314

273

258

250

2Z5

 

11,163

37Z

0.7Z9

0.81

Dec.

175

187

190

199

Z14

Z04

180

165

16Z

150

1Z5

105

115

1ZO

*125

88

134

120

115

100

94

80

90

97

100

110

105

100

90

85

80

4,004

129

0.253

0.29

Jan.

76

78

87

95

98

101

92

74

90

103

129

207

225

165

159

155

130

*100

105

115

115

110

105

92

100

92

90

80

86

240

 1,200

4,694

151

0.296

0.34

Feb.

830

500

2,500

2,700

1,540

2,980

5,530

2,260

1,550

1,200

1,080

2,330

1,230

830

770

83O

645

2,450

2,810

1,280

928

660

500

*470 '582

731

928

710

595

41,949

1,447

2.84

3.06

Mar.

462

442

458

414

369

348

5T8

,770

,550

,480

,030

,240

,170

,230

,510

,800

,050

,750

,280

,170

,100

,450

,680

,640

,570

,200

,030

830

800

1,030

45,266

1,460

2.86

3.30

Apr.

682

605

663

*1,830

928

693

2,720

3.900

1,700

1,200

995

862

742

650

585

585

560

474

434

390

358

327

327

352

355

352

320

304

291 33"4

24,518

817

1.60

1.79

May

352

282

438

484

344

288

540

585

380

*307

273

264

1,040

1.110

462

348

304

267

250

227

199

185

176

176

167

148

146

165

182

156

155

10,578

555

0.657

0.76

June

508

255

372

376

238

176

144

129

117

113

110

110

98

151

239

146

103

164

152

*138

122

105

105

117

170

167

125

105

89

75

4,819

161

0.316

0.35

July

64

61

95

93

694

344

507

207

244

176

152

106

92

98

98

162

176

151

101

95

2,150

1 240

484

527

258

236

187

150

133

115

8,894

287

0.563

0.65

Aug.

 100

93

84

81

2,150

912

474

330

230

173

144

118

110

108

100

95

86

81

75

66

177

385

251

146

113

89

80

80

81

65

7,138

230

0.451

0.52

Sepb.

59

55

52

53

58

76

353

287

143

98

82

*78

68

65

66

82

92

136

100

95

87

86

80

80

92

113

95

97

110

152

3,090

103

0.202

0.23

Calendar year 1955: Max 9,070 Min 14 Mean 479 Cfsm 0.939 In. 1Z.7Z

Water year 1955-56: Max 8,480 Min 5Z Mean 530 Cfsm 1.04 In. 14.14

Peak discharge (base, 10,800 cfa).--0ct. 14 (8:30 p.m.) 14,200 cfs (12.92 ft). 

* Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Nov. 29 to Dec. 1, Dec. 10-16, 20-23, Dec. 26 tc 

Jan. 2, Jan. 7-9, Jan. 17 to Feb. 4, Feb. 22, 25, Mar. 18, 21, 22.
SUSQUEHANNA RIVER BASIN 431

Codorus Creek at Spring Grove, Pa.

Location. Lat 39°52'15", long 76°51'50", on left bank 500 ft downstream from bridge on 

State Highway 116 at Spring Grove, York County, and 0.5 mile downstream from Bunch 

Creek.

Drainage area, 74.3 sq mi.

Records available. March 1932 to September 1956 in reports of Geological Survey. April 

1929 ';o September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder. Datum of gage is 436.50 ft above mean sea level, datum of 

T929, supplementary adjustment of 1943. Prior to Jan. 18, 1930, chain gage and Jan. 18, 

1930, to Sept. 9, 1941, water-stage recorder, at bridge 500 ft upstream at same datum.

Average dtscharge.--26 years (1929-31, 1932-56), 77.5 cfs.

Extremes. Maximum discharge during year, 1,910 cfs Oct. 14 (gage height, 6.35 ft); minimum, 8.1 cfs Sept. 13 (gage height, 0.67 ft); minimum daily, 11 cfs Sept. 12.

1939-56: Maximum discharge 11,200 cfs Aug. 23, 1933 (gage height, 11.84 ft), from 

rating curve extended above 1,200 cfs on basis of computation of peak flow over dam; no. 

flow for part of day Oct. 26, 1947; minimum daily, 0.8 cfs Oct. 26, 1947.

Remarks.--Records good.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 15 to Sept. 30

0.8 

1.0 

2.0

18

45

211

3.0 

4.9

445

1,060

0.7

.8

1.0

2.0 

3.0 

3.7

211

445

650

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

Oct.

27

24

23

23

"26

38

32

37

31

27

34

23

24

1,060

244

L34

L02

84

75

64

60

52

51

52

51

48

45

46

70

154

75

2,326

91.2

1.23

1.41

Nov.

56

51

52

51

46

44

45

48

41

58

159

76

68

60

*60

57

50

44

51

50

46

46

44

42

41

42

42

41

32

34

1,577

52.6

0.708

0.79

Dec.

34

35

37

40

35

31

31

34

35

32

30

28

27

28

*56

25

25

27

26

22

22

21

23

26

31

26

19

17

T8

22

881

28.4

0.382

0.44

Jan.

18

17

22

23

23

22

21

15

T7

41

55

45

37

29

27

26

27

23

*25

27

24

25

25

19

19

21

17

17

26

TOO" 396

1,229

39.6

0.533

0.62

Feb.

54

350

384

201

205

584

434

188

150

130

149

150

110

94

97

84

80

287

152

126

103

fi9

BO

74

118

100

*80

75

64

4,792

165

2.22

2.40

Mar.

62

64

62

57

56

58

85

288

153

121

126

122

121

326" 628

310

295

231

205

185

183

209

240

235

190

181

160

145

148

140

126

5,512

178

2.40

2.76

Apr.

113

110

170

134

 111

119

2"83 298

203

171

155

140

129

118

114

121

105

98

92

84

80

76

78

78

74

74

69

68

7T

76

3,612

120

1.62

1.B1

May

62

69

74

60

54

54

77

57

51

*51

50

54

155

78

75

58

48

50

46

44

42

41

44

40

37

35

42

41

32

30

3T

1,685

54.4

0.732

0.84

June

46

59

57

38

32

31

29

27

26

27

25

23

22

30

21

20

20

23

23

20

*25

26

21

39

21

18

20

20

18

18

825

27.5

0.370

0.41

July

17

18

31

125

61

73

35

28

93

30

23

20

30

25

18

18

18

17

16

43

3Z6

60

44

42

35

29

26

23

Z2

20

18

1,384

44.6

0.600

0.69

Aug.

*18

23

20

16

98

42

34

26

22

IB

16

15

14

16

14

14

13

IS

13

16

119

32

23

20

16

15

14

16

14

13

13

756

24.4

0.328

0.38

Sept.

13

13

13

12

13

13

22

16

14

13

13

11

*14

15

16

16

17

18

18

17

15

17

17

17

18

18

20

63

27

20

529

17.6

0.237

0.26

Calendar year 1955:- Max 1,680 Mln 8.1 Mean 65.1 Cfsm 0.876 In. 11.89

Water yea.:- 1955-56: Max 1,060 Min 11 Mean 7O.O Cfsm 0.942 In. 12.81

Peak discharge (base, 1,000 cfs). --Oct. 14 (12:30 p.m.) 1,910 cfs (6.35 ft); Feb. 6 (9:30 p.m.)

1,610 cfs (6.00 ft); Mar. 14 (3 p.m.) 1,180 cfs (5.15 ft).

* Discharge measurement made on this day.
432 SUSQUEHANNA RIVER BASIN 

South Branch Codorus Creek near York, Pa.

Location.--Lat 39°55'10", long 76°45'00", on right bank 100 ft downstream from dam of 

pumping station of York Water Co., 200 ft upstream from Pennsylvania Railroad bridge, 

half a mile upstream from mouth, and 3 miles southwest of York, York County.

Drainage area. 117 sq mi.

Records available. October 1931 to September 1956 in reports of Geological Survey. May 

1925 to September 1927 (gage heights and discharge measurements only) and October 

1927 to September 1941 in reports of Pennsylvania Department of Forests and Waters.

Gage. Water-stage recorder and concrete control. Datum of gage is 373.03 ft above mean 

sea level, adjustment of 1907.

Average discharge. 29 years (1927-56), 133 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 1,720 cfs Feb. 7 (gage height, 5.66 ft); minimum, 0.3 cfs Dec. 28 (gage height, 0.38 ft).

1925-56: Maximum discharge, 19,300 cfs Aug. 23, 1933 (gage height, 17.97 ft, 

from floodmark in gage house;, by contracted-opening determination of peak flow; no 

flow for part of day Oct. 8, 1941, and parts of several days in August and September 

1954, July and August 1955; minimum daily, 0.1 cfs Oct. 8, 9, 1941, Sept. 4, 5, 1954.

Remarks. Records good. Regulation at low flow by pumping plant above station. Some 

regulation, during entire period of record, from Lake Williams (capacity, 900,000,000 

gal). Diversion above station for municipal supply of York.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

1.0 

1.3

1.6 

2.0 

3.0 

3.6

137

222

500

725

0.65

.7

1.0

1.3

7.5

10

17

39

81

1.6 

2.0 

3.0 

3.7

132

214

500

765

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

48

48

46

42

*39

55

51

58

54

65

76

35

37

706

339

185

172

163

157

147

141

115

71

71

71

80

64

62

64

93

89

3,444

111

24.2

Nov.

68

67

65

76

68

68

68

70

65

70

170

100

92

80

*77

78

76

68

78

85

76

72

71

72

71

72

72

68

61

61

2,285

76.2

23.6

Dec.

61

61

68

76

65

60

60

58

61

67

62

52

46

25

*32

16

15

18

19

11

11

16

24

21

27

27

15

15

20

23

15

1,147

37.0

23.0

Jan.

15

11

20

33

39

37

35

23

24

143

201

131

74

62

48

44

39 *31

29

33

34

34

30

21

22

25

20

22

36

487

365

2,168

69.9

22.3

Feb.

146

375

376

199

204

504

763

3l2

244

203

201

235

167

147

140

127

118

337

259

214

173

149

125

116

163

177 *125

118

102_

6,519

225

22.9

Mar.

94

99

97

95

89.

89

116

361

242

199

201

203

188

506~ 658

483

466

379

323

291

281

294

352

398

320

320

291

261

268

271

237

8,466

273

22.6

Apr.

219

203

235

*235

192

190

334

454

340

294

242

242

230

219

212

214

190

169

165

153

145

142

140

132

132

132

127

119

123

131

6,055

202

22.3

May

95

111

127

106

102

97

136

97

89 *86

86

84

157

92

78

76

68

75

75

68

66

60

75

59

52

58

69

65

51

43

59

2,567

82.8

23.9

June

86

98

119

72

56

52

47

43

40

52

44

34

45

122

37

35

35

79

58

34

*44

44

35

62

44

23

23

19

24

16

1,522

50.7

26.5

July

27

18

222

151

102

95

75

52

161

59

52

31

39

46

29

34

35

25

19

42

462

106

75

70

58

49

38

34

40

29

24

2,299

74.2

23.9

Aug.

*25

28

19

18

554

94

68

51

39

34

29

27

35

31

26

21

19

16

15

40

199

68

50

39

35

24

29

29

26

26

q i

'

1,523.1

49.1

27.0

Sept.

36

58

31

21

16.

69

80

36

30

24

16

25

*17

16

33

44

24

16

20

31

23

26

30

47

23

23

26

150

72

52

1,115

37.2

25.0

Adjusted for diversion

Mean

Cf sm 

In.

135 

1.15 

1.33

99.6 

0.852 

0.9E

Calendar year 1955: 

Water year 1955-56:

60.0 

0.513 

0.59

92.2 

0.788 

0.91

248 

2.12 

2.29

296 

2.53 

2.92

224 

1.91 

2.13

107 

0.915 

1.05

Observed

Max 2,100 Mln 0.5 Mean 92.7 

Max 763 Mln 9.1 Mean 107

77.2 

0.660 

0.74

98.1 

0.838 

0.97

76.1 

0.650 

0.75

62.2 

0.532

0.59

Adjusted

Mean 117 Cfsm 1.00 In. 13.58 

Mean 131 Cfsm 1.12 In. 15.22

[ ge (base. 1.000 efsK O--. J.* \* p.m.) 1, 

f. 14 (4 p.m.) 1,160 cfs (4.58 ft).

Peak discharge 310 cfs (4.87 ft); Feb. 7 (l a.m.) 1,720 cfs

(5.66 ft)j Mar.

* Discharge measurement made on this day.

t Diversion from South Branch Codorus Creek, In cubic feet per second, furnished by York Water Co.
SUSQUEHANNA RIVER BASIN 433

Codorus Creek near York, Pa.

Location.--Lat 39°56'45", long 76°45'20", on left bank 0.9 mile upstream from Riehland 

Avenue Bridge, 1.9 miles downstream from South Branch Codorus Creek, and 2 miles 

southwest of York, York County.

Drainage area. 222 sq mi.

Records available. August 1940 to September 1956 in reports of Geological Survey.

October 1915 to August 1923, August 1926 to September 1932 (gage heights and discharge 

measurement only), August 1940 to September 1941 in reports of Pennsylvania Department 

of Forests and Waters. Published as "at York" 1915-32.

Gage. Water-stage recorder. Datum of gage is 356.39 ft above mean sea level (Corps of 

Engineers benchmark). Prior to Sept. 30, 1932, chain gage at site 1.6 miles downstream at different datum.

Average discharge.--16 years (1940-56), 245 cfs (adjusted for diversion and, since September 1942, for storage).

Extremes.--Maximum discharge during year, 3,300 cfs Feb. 7 (gage height, 8.25 ft); minimum, 27 cfs Aug. 31; minimum gage height, 1.80 ft Dec. 20, Jan. 8.

1940-56: Maximum discharge, 7,770 cfs Dec. 4, 1950 (gage height, 12.03 ft), from 

rating curve extended above 3,300 cfs; minimum, 6.9 cfs Sept. 8, 1941.

Maximum stage known, about 24.0 ft Aug. 23, 1933 (at present site and datum), from 

floodmark 500 ft downstream (discharge, about 32,000 cfs).

Remarks. Records good. Regulation at low flows by mills and pumping plant above station. 

Diversion above station for municipal supply of York. Since September 1942, flood 

flows regulated by Indian Rock Reservoir (capacity, 28,000 acre-ft). Records of chemical analyses and water temperatures for water year 1956 are given in WSP 1450.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

In cubic feet per second)

Oct. 1 to Mar. 14 Mar. 15 to Sept. 3O

1.8 

2.0 

2.5

3.0 277

4.0 665

6.1 1,76O

1.8 26

2.O 53

2.5 141

3.0 256

4.O 59O

5.2 1,2OO

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Itotal

Mean

(t)

Oct.

84

81

76

75

*72

99

98

98

99

96

no

67

68

1,550 

1,130

424

326

294

262

237

217

186

138

136

138

140

124

:.20

122 1*91

213

7,151

231

+24.2

Nov.

148

136

136

146

13O

128

128

138

124

124

388

206

178

162 

*155

157

144

128

14O

151

136

132

126

126

122

124

120

119

1O6 

1O1

4,369

145

+23.6

Dec.

104

no

111

120

113

103

99

99

104

108

98

89

87

64 

*88

60

51

55

58

42

4O

44

5O

51

62

62

44

44

51 

52

44

2,307

74.4

+23.0

Jan.

43

38

42

66

66

66

66

46

64

142

252

176

119

98

81

78

73

*66

70

76

75

75

72

55

54

64

54

52

72 

847

702

3,850

124

+22.4

Feb.

232

648

1,090

56 O

533

1,030

1,750

664

492

409

398

492

354

277 

274

249

229

753

561

424

334

274

254

217

296

357

*240

223

188

13,742

474

+22.8

Mar.

173

178

176

166

155

155

210

752

525

4O1

390

401

367

1.47O 

1,170

940

998

775

635

550

530

570

739

800

612

590

510

461

465 

465

399

16,726

540

+22.7

Apr.

564

540

438

*423

*343

331

694

1,020

658

530

454

426

399

373 

558

567

331

294

289

264

251

246

244

236

258

229

226

214

2O9 

248

11,057

568

+22.2

May

186

2OO

258

2OO

180

177

248

189

166

*160

162

162

359

205 

180

166

141

147

143

151

125

121

137

119

108

1O8

123

129

104

97

11Z

5,021

162

+23.9

June

149

165

212

135

110

1O2

93

86

82

91

84

71

79

166 

73

66

66

116

97

66

*74

82

70

110

79

53

54

50

55

43

2,775

92.5

+26.5

July

53

42

269

223

259

181

133

95

262

111

84

64

70

91 

64

65

68

54

47

67

939

200

141

123

114

93

76

68

73

64

54

4,247

157

+25.9

Aug.

*52

53

45

42

557

169

123

93

78

68

59

54

58

54

52

43

42

38

56

65

358

128

89

73

62

52

56

54

46

51

31

2,781

89.7

+27.0

Sept.

47

84

52

43

38

86

119

61

54

45

39

44

*58

59

57

68

50

45

45

56

46

46

51

7O

46

46

51

220

112

8O

1,876

62.5

+25. 0

Adjusted for diversion and change in reservoir contents

Mean 

Cf sm 

In.

255 

1.15 

1.35

16 < 

0.76] 

O.8E

Calendar year 1955: 

Water year 1955-56:

) 97.4 

0.459 

O.51

146 

0.658 

0.76

497 

2.24 

2.42

565 

2.54 

2.93

390 

1.76 

1.96

186 

0.838 

O.97

Observed

Max 5,6OO Mln 14 Mean 19O 

Max 1,73O Min 51 Mean 2O7

119 

0.536 

0.60

161 

0.725 

O.84

117 

0.527 

O.61

87.5 

O.394 

0.44

Adjusted

Mean 215 Cfsm 0.968 In. 15.15 

Mean 251 Cfsm 1.04 In. 14.22

* Discharge measurement made on this day.

t Diversion from South Branch Codorus Creek, in cubic feet per second, furnished by York Water Co. 

and change in contents in Indian Rock Reservoir, equivalent in cubic feet per second, furnished by 

Corps of Engineers.
434 SUSQUEHANNA RIVER BASIN

Susquehanna River at Marietta, Pa.

Location. Lat 40°03'15", long 76°31'50", on left bank 420 ft upstream from Chickies Creek 

and 1 mile downstream from Marietta, Lancaster County. Records include flow of 

Chickies Creek.

Drainage area. 25.990 sq mi, approximately (includes that of Chickies Creek). 

Records available. October 1931 to September 1956.

Gage. Water-stage recorder. Datum of gage is 200.56 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943.

Average discharge. 25 years, 36,460 cfs.

Extremes.--Maximum discharge during year, 325,000 cfs Mar. 10 (gage height, 50.25 ft); 

minimum, 7,210 cfs Oct. 6 (gage height, 33.21 ft).

1931-56: Maximum discharge, 787,000 cfs Mar. 19, 1936 (gage height, 60.73 ft), from 

rating curve extended above 460,000 cfs; minimum, 618 cfs Sept. 26, 1932 (gage height, 

30.89 ft), when York Haven powerplant was shut down in order to obtain current-meter 

measurements at low water; minimum daily, 1,380 cfs Sept. 26, 1932.

Maximum stage known prior to 1931, 58.3 ft June 2, 1889, from floodmark (discharge, 

about 630,000 cfs).

Remarks. Records good. Discharge below 8,000 cfs regulated by Metropolitan Edison Co. 

plant at York Haven. Accuracy of records for entire period has been verified independently by Pennsylvania Water and Power Co. and Safe Harbor Water Power Corp. by comparison with records obtained at Safe Harbor, Holtwood, and Conowingo powerplants below 

station.

Cooperation.--Gage-height record furnished by the Safe Harbor Water Power Corp. 

Revisions (water years). WSF 781: 1933(M).

Rating table, water year 1955-56 (gage height, in feet, and discharge

in cubic feet per second)

(Stage-discharge relation affected by ice Dec. 13 to Jan. 1O, 

Jan. 24, 28, 29)

33.5

34.0

38.0

8,620

11,200

46,100

42.0

50.0

113,000

319,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

Z5

26

Z7

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

9,610

9,610

8,860

8,860

8,860

8.620

10,900

11,400

19,400 

20,100

21,600

23,900

21,600

33,500

127,000

176,000

252.000

232,000

162,000

116,000

90,200

69,600

55,800

47,400

38 , 600

35,100

32,900

31,900

31,900

31,900 

36,200

1,783,320

57,530

2.21

2.55

Nov.

61,700

90,2OO

77,800

61,800

51,500

43,500

38,600

36,200

32,900 

29,900

Z9,900

29,900

29,900

29,000

28,000

31,900

60,100

116,000

126,000

97,600

77,800

64,900

57,300

50,100

46,100

46,100

48,700

44,800

41,000

37,400

*1,616.6

53,890

2.07

2.31

Dec.

32,900

30, 900

28,000

26,300

25,400

24,600

24,600

31,900

34.000 

30,900

27,100

23,900

22,000

21,000

20,000

16,000

11,000

13,000

18,000

16,000

14,000

11,000

10,500

10.000

10,500

11,500

12,500

13,500

14,000

15,500 

16,500

617,000

19,900

0.766

0.88

Jan.

13,500

13,000

13,500

14,000

14,500

14,500

14,000

11,000

11,500 

12 , 500

14,000

15,300

16,000

14,500

20,000

24.600

Z3,900

20,100

18,700

17,300

15,400

14,400

15,300

12,000

12,600

11 , 400

10,400

10,500

11,000

12,000 

14,40Cr

455,800

14,700

0.566

0.65

Feb.

15.500

19,400

22 , 300

21,600

21,600

26,300

36,200

43,500

50,100 

48,700

51,500

60,300

69,600

61,800

52 , 900

48,700

48,700

52 , 900

66,500

76,200

77,800

66,500

54,300

46,100

39,800

38 , 600

67,500

103,000

86,500

*1,474.2

50,830

1.96

Z.ll

Mar.

71,200

57,300

52,900

57,300

74,500

79,500

83,000

159,000

263,000 

*319.000

257,000

181,000

144,000

132,000

122,000

107,000

97,600

86,500

74,500

63,300

57,300

55,800

55,800

57,300

60,300

60,300

57,300

54,300

51.500

52,900 

51,500

*3,095 . 9

99,870

3.84

4.43

Apr.

51,500

51,500

50,100

58,8OO

108,000

191,000

209.0OO

206,000

211,000

198,000

166,000

146,000

128,000

111,000

99,500

92,000

84,800

84,800

90,200

88,300

79,500

69,600

63,300

60,300

61,800

63,300

60,300

55,800

52 , 900

52 , 900

*3, 045 . 2

101,500

3.91

4.36

May

57,300

63,300

66,500

69,600

69,600

66,500

61,800

68,000

69,600 

69,600

60,300

54,300

51 , 500

69,600

95,700

97,600

76,200

63,300

54,300

50,100

44,800

41,000

37,400

34,000

31,900

29,000

27,100

25,400

24,600 

25. 900

23,900

tl,677.7

54,120

2.08

2.40

June

24,600

24,600

29,000

36,200

45.500

42,200

38,600

35,100

30,900 

27,100

25,400

23,900

23,100

20,800

19,400

18,000

17.000

17,300

18,700

19,400

22 , 300

22 , 300

20,100

20,100

19,400

18,700

19,400

21,600

20,100 

18, 700

737,500

24,580

0.946

1.06

July

18,000

16, OOP

16,600

21,600

27,100

37,400

31,900

29,000

27,100 

25,400

23,100

20,800

20,100

18,700

16,600

18,000

17,300

18,000

20,100

18,700

24,400

41,000

42,200

38,600

39,800

35,100

32,900

36,200

32,900 

29,000

24,600

818,200

26,390

1.02

1.17

Aug.

20,800

18,700

16,300

14,700

16,600

17,300

21,700

37,400

58,800 

57,300

43,500

34,000

29,000

25,400

26,300

26,300

23,100

20,100

17,300

16,000

16,600

16,300

16,300

14,700

13,100

12 , 300

10,600

10,600

10,600 

11,400

11,400

684,500

22,080

0.850

0.98

Sept.

11,700

13,700

2O,1OO

20,800

20,100

18,700

20,100

20,100

20,800 

17,300

15,000

13,700

12,300

11,700

11.200

11,400

11,400

11,700

13,100

15,300

18,700

20,100

19,400

18 , 700

19,400

21,600

21,600

22 . 500

22 , 300 

19,400

513,700

17,120

0.659

0.74

Calendar year 1955: Max 252,000 Min Z,8ZO Mean 35,630 Cfsm 1.37 In. 18.58

Water year 1955-56: Max 319,000 Mln 8,6ZO Mean 45,140 Cfsm 1.74 In. 23.64

Discharge measurement made on this day. 

* Expressed in thousands.
SUSQDEHANNA RIVER BASIN 435

Conestoga Creek at Lancaster, Pa.

Location. Lat 40°03'00", long 76°16'40", on left bank at Pennsylvania Railroad Bridge, 

50 ft downstream from small tributary, 500 ft downstream from diversion dam of city 

waterworks, and 0.75 mile east of Lancaster, Lancaster County.

Drainage area. 324 sq mi.

Records available. September 1928 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 245.63 ft above mean 

sea level, datum of 1929, supplementary adjustment of 1943. Prior to May 1, 1933, at 

site 600 ft upstream at different datum, excluding small tributary.

Average discharge. 26 years (1928-31, 1933-56), 390 cfs (adjusted for diversion).

Extremes,--Maximum discharge during year, 4.580 cfs July 3 (gage height, 8.03 ft); minimum, 38 efs Jan. 8 (gage height, 2.68 ft).

19S8-56: Maximum discharge, 22,800 cfs Aug. 24, 1933 (gage height, 17.52 ft, from 

floodmark in recorder shelter), from rating curve extended above 4,000 cfs on basis 

of slope-area determination of peak flow; probably no flow at times; minimum daily, 

7 cfs Aug. 11, 1930.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Regulation at low flow by water works and mill above station. Diversion above station 

for municipal supply of Lancaster. Records of chemical analyses and water temperatures for water year 1956 are given in WSP 1450.

Revisions.--WSP 1202: Drainage area.

Rating table, water year 1955-56 (gage height, in feet, and discharge,

in cubic feet per second) 

(Stage-discharge relation affected by ice Dec. 21, 22, 28-31)

2.9 

3.2

3.6

75

147

295

4.0 

5.0

6.1

504

1,220

2,240

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

(t)

Oct.

236

217

196

182

178

*348

552

507

446

282

244

229

213

424

664

653

1,070

628

498

431

393

362

337

328

314

300

291

282

296

788

638

12,527

404

19.7

Nov.

388

337

328

328

304

286

286

300

274

282

598

458

337

318

295

295

*328

278

274

295

291

318

286

278

265

252

244

244

225

213

9,205

307

18.3

Dec.

217

217

225

232

236

210

206

206

206

202

185

*188

182

172

178

159

169

169

169

153

120

135

156

156

162

172

156

130

110

120

130

5,428

175

17.1

Jan.

139

136

144

142

142

142

142

112

115

162

210

229

244

210

172

162

159

144

142

147

*131

134

142

123

113

118

110

103

113

671

690

5,643

182

17.1

Feb.

277

652

1,680

860

710

1,160

2,150

848

682

596

570

781

577

481

476

476

404

1,200

1,120

702

*590

498

458

442

506

967

564

528

481

21,436

739

17.6

Mar.

415

420

415

393

357

368

458

1,300

1,080

688

810

790

640

1,800

2,000

1,300

1,108

900

800

670

670

900

1,350

1,500

1,400

1,300

1,150

1,050

1,000

1,050 

900

28,974

935

17.9

Apr.

800

800

740

680

*628

564

1,000

1,470

978

800

744

702

662

628

615

723

682

577

546

498

476

458

487

458

425

425

436

398

393

398

19,191

640

18.9

May

362

347

458

' 393

352

333

982

571

415

378

*378

362

564

532

378

342

318

314

304

295

278

265

328

291

24,8

236

248

295

240

221

232

11,260

363

20.1

June

256

454

958

409

304

269

244

232

229

232

304

229

196

188

175

172

270

340

221

188

185

*311

398

466

286

213

196

213

178

166

8,482

283

21.8

July

162

162

2.010

373

352

393

291

252

386

304

221

196

258

286

213

202

196

182

169

169

471

333

225

196

185

175

153

150

153

144

134

9,096

293

21.0

Aug.

128

125

*114

106

196

263

280

164

141

136

108

115

122

112

108

107

90

86

92

115

336

244

143

112

106

110

120

88

99

94

84

4,244

137

23.5

Sept.

129

391

150

123

94

383

968

227

166

147

134

134

123

*118

118

169

147

172

139

135

148

122

120

144

143

118

109

166

168

142

5,547

185

22.2

Adjusted for diversion

Mean 

Cfsm

424 

1.31 

1.51

32E 

l.OC 

1.12

Calendar year 1955: 

Water year 1955-56:

192 

0.593 

0.68

199 

0.614 

0.71

757 

2.34 

2.52

953 

2.94 

3.39

659 

2.03 

2.26

383 

1.18 

1.36

Observed

Max 6,220 Min 30 Mean 343 

Max 2,150 Min 84 Mean 385

305 

0.941 

1.05

314 

0.969 

1.12

160 

0.494 

0.57

207 

0.639 

0.71

Adjusted

Mean 362 Cfsm 1.12 In. 15.19 

Mean 405 Cfsm 1.25 In. 17.00

Peak discharge (base, 2,800 efs).--Feb. 7 (3 a.m.) 3,650 cfs (7.30 ft); July 3 (9 a.m.) 4,580 cfs 

(8.03 ft).

* Discharge measurement made on this day.

t Diversion, equivalent in cubic feet per second, above station for municipal supply. Records of 

diversion furnished by city of Lancaster.

Note. No gage-height record Mar. 11 to Apr. 4j discharge estimated on basis of recorded range in 

stage and records for nearby stations.
436 SUSQUEHANNA. RIVER BASIN

Octoraro Creek near Rising Sun, Md.

Location. Lat 39°41'27", long 76°07'38", on right bank 10 ft downstream from Porter 

Bridge, 300 ft downstream from Love Run, 3| miles upstream from mouth, and 3| miles 

west of Rising Sun, Cecil County.

Drainage area. 193 sq mi.

Records available. April 1932 to September 1956.

Sage. Water-stage recorder. Datum of gage is 73.77 ft above mean sea level, adjustment 

of 1912. Prior to May 19, 1946, wire-weight gage at bridge 10 ft upstream at same 

datum.

Average discharge. 23 years (1932-35, 1936-56), 252 cfs (adjusted for storage and diversion since October 1951).

Extremes. Maximum discharge during year, 2,090 cfs Feb. 7 (gage height, 6.91 ft); minimum, 28 cfs Jan. 8, result of freezeup; minimum daily, 54 cfs Aug. 31.

1932-56: Maximum discharge, 35,000 cfs Aug. 9, 1942 (gage height, 17.57 ft), from 

rating curve extended above 5,000 cfs on basis of velocity-area studies; minimum. 18 cfs 

July 30, 31, Aug. 2, 1954.

Floods in 1884 and 1918 reached stages of 24.3 and 16.5 ft, respectively, present 

datum, from floodmarks.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

741 

781 

801 

871 

1081

Water 

year

1933 

1935 

1936 

1939 

1947

Date

Aug. 24, 

July 9 , 

Mar. 12, 

June 14, 

July 7 ,

1933 

1935 

1936 

1939

1947

Discharge 

(cfs)

34,500 

17,200 

9,340 

4,250 

3,550

Gage height 

(feet)

17.5 

13.8 

11.4 

8.98 

8.15

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Slight diurnal fluctuation caused by mills above station. Flow regulated by Pine Grove Reservoir beginning Feb. 22, 1951 (capacity, 2,800,000,000 gal). 

Diversion above station by Octoraro Water Co., and from Pine Grove Reservoir beginning 

November 1951 by Chester Municipal Authority for municipal supply of Chester and 

su rround ing b oroughs.

Revisions. WSP 1051: Drainage area. Revised figures of discharge, in cubic feet per 

second, for medium or high-water periods in the water years 1933, 1935, 1937, 1938, 

1944, 1945, 1947 (revised peak discharges only), and 1949, superseding those published 

in WSP 741, 781, 821, 851, 1001, 1031, 1081, and 1141, are given herewith:

1944 

June 19............ 500

1935 

July 9......... 7,540

Sept. 4......... 1,300

1938 

July 15.

1948 

Dec. 17.

334

258

334

Month

Calendar year 1933. .......

Calendar year 1935. .......

Water year 1936-37. .......

Calendar year 1938. .......

Calendar year 1944. .......

Water year 1944-45. ....... 

Calendar year 1945. .......

December 1948. ..............

Water year 1948-49. .......

Cfs-days

-

110,488

5 929

76,776

86,893

66,792

85,346 

98,760

8,656 

100,399

101,050

Maximum

13,700

1,540

3,780

4,430

4,430 

4,430

1,580 

1,970

2,000

Minimum

87

124

69

97

32

32

52 

89

124

83

Mean

361

303

t303

210

254

238

194

182

234

271

279 

274

277

Pec1 square 

mile

1.87

1.87

1.57

1.57

1.55

1.09

1.82

1.32

1.25

.808

1.01

.943

1.32

1.21 

1.40

1.45

1.44

Runoff in 

Inches

25.38

25.38

1.75

20.98

21.30

1.14

21.15

14.80

2,10

17.86

16.75

.90

13.71

12.87

1.52

16.43 

19.03

1.67

19.50

Revised peak discharge 

3,410 cfs.

t Partly estimated.

. 1946-47: July 7 (12 p.m.) 3,550 cfs; July 8 (6 to 10 a.m.)
SUSQUEHAMA RIVER BASIN 

Octoraro Creek near Rising Sun, Md. Continued

437

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

3.8

3.9 

4.1 

4.5 197

5.0 

5.5 

6.0 

6.5

390

690

1,090

1,580

Discnarge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

1.35

L28

1.17

112

110

126

156

160

210

150

L30

120

115

130

£20

L70

160

140

130

125

120

L15

110

115

115

 112

110

105 Tio

150

150

4,156

134

+22.3

Nov.

130

120

115

115

110

110

115

125

115

120

162

164

142

130

123

121

119

112

114

L30

121

123

123

123

114

112

110

112

110 

97

3,637

121

+23.0

Dec.

99

101

103

108

110

108

101

99

103

108

99

88

84

82

90

80

78

76

84

78

72

70

74

84

91

90

80

70

70 

80

75

2,735

88.2

+22.7

Jan.

70

70

*82

82

80

74

68

60

66

90

123

144

142

121

99

88

93

84

80

96

90

80

80

72

68

72

68

66

78 

450

902

3,838

124

+37.9

Feb.

285

553

922

531

395

606

1.290

507

*317

259

245

277

242

206

191

189

177

401

410

270

219

189

172

162

177

206

186

177

162

9,923

342

+18.0

Mar.

146

144

146

146

137

137

142

264

381

235

203

225

219

920

834

484

495

395

357

322

309

313

348

436

371

313

309

277

277 

*317

9,887

319

+26.8

Apr.

255

242

245

266

259

231

400

525

405

313

277

259

248

245

242

292

300

252

235

216

206

203

203

200

203

216

212

200

194 

189

7,733

258

+24.6

May

175

175

200

203

189

175

194

194

175

169

169

166

172

177

164

152

144

144

144

144

137

146

191

166

139

130

137

146

137 

126

139

5,019

162

+26.0

June

415

390

441

262

194

*166

154

144

139

139

312

235

164

139

123

119

121

137

130

117

128

144

132

215

152

121

114

114

106

97

5,364

179

+28.0

July

"53 91

262

212

172

139

128

128

283

203

152

123

112

112

112

110

112

110

99

95

497

285

186

152

137

121

119

119

112 

99

91

4,766

154

+27.1

Aug.

84

84

84

80

525

191

152

123

108

91

84

76

72

74

74

67

63

70

61

*59

134

156

110

84

72

63

65

63

63

57

M

2,941

94.9

+27.2

Sept.

56

117

108

80

65

100

277

177

112

84

68

65

65

61

68

86

78

70

65

57

59

56

57

105

117

91

88

159

186 

135

2,912

97.1

+29.3

Adjusted for diversion and change In reservoir contents

Mean 

Cfsra

156 

0.808 

0.93

144 

0.746 

0.83

Calendar year 1955 : 

Water year 1955-56 :

111 

0.575 

0.66

162 

0.839 

0.97

360 

1.87 

2.01

346 

1.79 

2.07

283 

1.47 

1.63

188 

0.974 

1.12

Observed

Max 5,240 Mln 30 Mean 171 

Max 1,290 Mln 54 Mean 172

207 

1.07 

1.20

181 

0.938 

1.08

122 

0.632 

0.73

126 

0.653 

0.73

Adjusted

Mean 196 Cfsm 1.02 In. 13.78 

Mean 198 Cfsra 1.03 In. 13.96

» Discharge measurement made on this day.

t Diversion above station and diversion from and change In contents In Pine Grove Reservoir, 

equlvalert In cubic feet per second! furnished by Octoraro Water Co. and Chester Municipal 

Authority, respectively.

Note.--No gage-height record Oct. 8 to Nov. 10; discharge estimated on basis of recorded range 

In stage, weather records, and records for nearby stations. Stage-discharge relation affected by 

Ice Dec. 12-24, Dec. 26 to Jan. 3, Jan. 6-10, 19-30.

505690 O - 59 - Z9
438 SUSQUEHANNA RIVER BASIN

Basin Run at Liberty Grove, Md.

Location. Lat 39°39'30", long 76°06<10", on left bank 100 ft upstream from highway bridge,

 0.9 mile east of Liberty Grove, Cecil County, 1.0 mile southwest of Colora, and 3 miles 

upstream from mouth.

Drainage area.--5.31 sq mi.

Records available. October 1948 to September 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 220 ft (from topographic map).

Average discharge. 8 years, 6.33 cfs.

Extremes. Maximum discharge during year, 176 cfs Mar. 14 (gage height, 2.10 ft); minimum,

 O~~cfs Sept. 3, 4, 5 (gage height, 0.82 ft).

1948-56: Maximum discharge, 1,440 cfs July 4, 1951 (gage height, 6.06 ft), from 

rating curve extended above 150 cfs on basis of slope-area determinations at gage 

heights 3.80 and 6.06 ft; minimum, 0.02 cfs Aug. 3, 1955 (gage height, 0.69 ft); minimum daily, 0.6 cfs Aug. 6, 1955.

Remarks. Records good except those for periods of ice effect, which are fair. Occasional

 diversions for irrigation of about 60 acres above station.

Revisions (water years). WSP 1382: 1949-53.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1-8, 

Jan. 31 to Sept. 30

0.8

.9

1.0

1.0 

2.6 

5.8

1.2

1.4

1.5

Oct. 8 to Jan. 30

0.8 1.0

.9 3.1

1.0 6.2

Note.--Same as 

preceding table 

above 1.0 ft.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

3.2

2.9

2.6

276

2.9

3.4

2.9

6.2

3.6

3.1

2 .8

2.8

2.8

3.6

4.2

3.4

3.4

3.1

3.1

2.8

2.8

2.8

2.8

3.1

3.4

3.1

3.1

3.1

3.1

4.2

3.6

100.5

3.24

0.610

0.70

Nov.

3.1

3.1

3.1

3.1

3.1

3.1

3.4

3.4

3.1

3.4

6.0

376

3.1

3.1

3.1

3.1

2.8

2.8

3.1

3.4

3.4

3.4

*3.1

3.1

2.8

2.8

2.8

3.1

2.6

278

95.9

3.20

0.603

0.67

Dec.

2.8

2.8

3.1

3.1

3.1

2.8

2.8

2.8

2.8

2.8

2.6

2.6

2.6

2.6

2.8

b2.6

2.6

2.6

2.6

b2.5

2.4

274

2.6

2.6

2.8

2.6

b2.4

b2.4

2.4

2.6

b2.4

82.6

2.66

0.501

0.58

Jan.

2.4

2.4

*2.4

2 .4

2.4

2.4

2.1

bl.9

F7T

2.8

3.6

3.6

3.1

2.6

2.4

2.4

2.6

b2.4

2.4

2.6

b2.4

2.4

2.4

b2.1

b2.0

2.1

bl.9

bl.9

2.6

32

b5.2

108.0

3.48

0.655

0.76

Feb.

b3.2

33

10

18

8.4

*30

15

5.8

4.7

4.4

5.5

6.3

4.0

3.8

4.4

3.8

3.8

21

6.3

4.7

3.8

3.4

b3.2

b3.2

4.7

4.4

3.4

3.4

3.2

228.8

7.89

1.49

1.60

Mar.

3.2

3.4

3.2

3.2

2.9

2.9

3.2

6.7

4.4

3.4

4.6

4.7

4.7

52

9.2

16

11

6.8

5.8

5.4

6.6

8.4

10

7.8

4.7

4.7

4.4

4.0

5.6

*5.4

4.7

223.0

7.19

1.35

1.56

Apr.

4.0

4.4

5.0

5.0

4.4

4.4

17

14

6.8

5.8

5.4

5.0

5.0

4.7

5.0

8.6

5.8

5.O

4.7

4.7

4.4

4.4

4.4

4.4

4.4

5.0

4.7

4.4

4.0

4.0

168.8

5.63

1.06

1.18

May

3.8

4.4

5.0

4.7

4.4

4.0

*4~4 6.8

3.8

3.8

3.8

3.8

4.0

3.4

3.2

3.2

3.2

3.4

3.2

3.4

3.2

4.2

4.4

3.4

3.2

2.9

3.8

3.4

2.9

2.9

3 2

117.2

3.78

0.712

0.82

June

5.8

11

5.8

4.0

3.4

*3.2

2.9

2.9

2.9

3.2

4.2

2.9

2.6

2.4

2.6

3.2

2.6

2.6

2.6

2.6

3.2

2.9

2.6

5.5

2.6

2.4

2.6

2.6

2.4

2.2

102.4

3.41

0.642

0.72

July

2.2

2.2

3.6

2.6

2.9

3.2

2.6

2.6

9.0

3.2

2.6

2.4

2.4

2.2

2.2

2.2

2.0

270

2.O

2.2

26

3.4

2.9

3.4

2.9

2.6

2.4

5.8

2.6

2.2

2.0

112.5

3.63

0.684

0.79

Aug.

2.0

1.8

1.8

1.8

19

3.8

2.9

2.6

2.4

2.2

2.2

2.4

2.2

2.2

2.0

2.0

1.8

1.7

1.7

*1.9

5.1

2.2

1.8

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

82.8

2.67

0.503

0.58

Sept.

1.6

1.6

1.4

T7T

1.4

~3.0 12

2.0

1.7

1.7

1.7

1.7

1.7

1.7

2.2

2.0

1.8

1.7

1.7

1.7

1.6

1.6

1.7

2.3

1.7

1.6

4.0

2.9

2.0

1.8

66.9

2.23

0.420

0.47

Calendar year 1955: Max 143 Mln 0.6 Mean 4.64 Cfsm 0.874 In. 11.86

Hater year 1955-56: Max 52 Mln 1.4 Mean 4.O7 Cfsm 0.766 In. 10.43

Peak discharge (base, 200 efs).--Ho peak above base. 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SUSQUEHANNA RIVER BASIN 439

Deer Creek at Rocks, Md.

Location.--Lat 39°37'49", long 76°24'13", on right bank a quarter of a mile downstream 

from Maryland & Pennsylvania Railroad bridge, three-quarters of a mile southeast of 

Rocks, Harford County, 1.2 miles upstream from Stirrup Run, and 7 miles northwest of 

Bel Air.

Drainage area. 94.4 sq mi.

Records available. October 1926 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 250.40 ft above mean 

sea level (city of Baltimore benchmark).

Average discharge. 30 years, 124 cfs.

Extremes. Maximum discharge during year, 2,450 cfs July 21 (gage height, 7.30 ft, from 

floodmark in stilling well); minimum, 9.2 cfs Jan. 8 (gage, height, 1.63 ft), result of 

freezeup; minimum daily, 50 cfs Jan. 8.

1926-56: Maximum discharge uncertain, occurred Aug. 23, 1933 (gage height, 17.7 ft, 

from floodmarks); minimum, 8 cfs Dec. 16, 1930, Jan. 26, 1939; minimum daily, 13 cfs 

Aug. 2, 1931.

Remarks. Records excellent except those for periods of ice effect or doubtful or no gageHeight record, which are fair. Some regulation at low flow caused by mills above 

station.

Revisions (water years).--WSP 726: Drainage area. WSP1171: 1933(M).

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.1 

2.4

2.7 140

3.0 

3.5 

4.5

210

403

940

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

86

81 

78

75

76

*103

94

122

99

84

78

76

75

889

222

192

155

134

124

114

109

103

99

101

99

96

94

92

125

231

153

4,259

137

1.45

1.68

Nov.

114

107 

105

107

98

98

101

107

96

96

159

112

105

101

98

103

96

89

96

98

96

96

*92

91

87

87

86

86

80

bSO

2,967

98.9

1.05

1.17

Dec.

b80

81 

82

86

82

81

78

80

81

81

b75

b70

b70

b75

80

b68

b82

b82

b82

b75

b75

b80

b80

82

80

b75

b70

b65

b67

b70 

b65

2,380

76.8

0.814

0.94

Jan.

b66

b68 

78

75

74

74

b70

b50

b65

b90

blOO

99

86

76

75

72

76

b70

b70

b74

b72

b72

b70

b60

b70

b68

b68

b66

b75

d535

*200

2,864

92.4

0.979

1. 13

Feb.

blOO

578 4"2S

264

249

562

441

202

168

150

146

163

132

120

122

118

112

236

168

142

126

110

blOO

blOO

124

124

107

103

94

5,589

193

2.04

2.20

Calendar year 1955: Max 2,170 Min 31

Mar.

92

96 

92

91

87

87

96

155

128

107

116

124

122

514

254

247

244

202

184

168

163

172

210

225

177

170

161

153

157

163

146

5,103

165

1.75

2.01

Apr.

140

138 

*155

157

142

138

283

318

207

184

172

163

157

153

150

182

159

146

142

136

132

130

132

132

132

136

130

126

122

118

4,712

157

1.66

1.86

May

112

118 

132

120

114

110

138

118

109

109

107

105

140

118

109

109

105

107

107

HE

105

116

132

110

101

99

114

116

101

99

109

3,501

113

1.20

1.38

June

206

354

T5T

144

126

dl!4

*d98

92

92

94

92

89

89

105

91

92

92

109

105

91

101

103

92

140

91

84

a80

a80

a75

a75

3,393

113

1.20

1.34

July

a75

a75 

a 120

a!50

a!20

101

89

80

164

91

78

72

70

74

6£

69

70

69

68

78

d680

132

110

114

101

86

81

86

82

74

68

3,393

109

1.15

1.34

Aug.

65

65 

64

65

415

118

*96

34

76

75

76

106

94

82

80

74

72

69

69

74

159

92

74

66

62

61

60

59

56

55

55

2,716

87.6

0.928

1.07

Sept.

62

96 

59

55

53

88

96

62

57

56

55

54

54

53

64

70

60

55

54

60

55

54

55

87

62

56

91

181

99

78

2,087

69.6

0.737

0.82

Mean 1O7 Cfsm 1.13 In. 15. 4O

Water year 1955-56: Max 889 Min 50 Mean 117 Cfsm 1.24 in . 16.94

Peak discharge (base. 2.500 efs).--July 21 (about 4 a.m.) 2,450 cfs (7.3O ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for nearby stations.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

recorder trace, high-water mark, weather records, and records for nearby stations.
440 SUSQUEHANWA RIVER BASIN

Reservoirs In Susquehanna River basin

East Sidney Reservoir. See page 313. 

Whltney Point Reservoir.--See page 331. 

Arkport Reservoir. See page 344. 

Almond Reservoir. See page 347.

First Fork Slnnemahonlng Creek Reservoir. Lat 41°24'25", long 78°01'10", at control tower 

at George B. Stevenson Dam on First Fork Sinnemahoning Creek, 8 miles northeast of 

Slnnemahonlng, Cameron County, Pa., and 8 miles upstream from mouth. Drainage area, 

243 sq ml. Records available, January to September 1956. Water-stage recorder. Datum 

of gage Is at mean sea level, datum unknown. Maximum contents during period, 27,730 

acre-ft Mar. 9 (elevation, 979.76 ft); minimum(after first filling), 1,612 acre-ft 

Mar. 17 (elevation, 916.52 ft).

Reservoir Is formed by an earth-fill dam. Storage began Jan. 31, 1956. Capacity, 

75,800 acre-ft between elevations 890.00 ft (sill of outlet gates) and 1,026.00 ft 

(crest of spillway). No dead storage. Ordinary minimum (conservation) pool elevation, 

920.00 ft (capacity, 2,000 acre-ft). Reservoir Is used for flood control. Figures 

given herein represent total contents. Records furnished by Pennsylvania Department of 

Forests and Waters.

DeHart Reservoir. Lat 40°27'50", long 76°44'50", at dam on Clark Creek, if miles southeast of Carsonville, Dauphin County, Pa., and 15.3 miles upstream from mouth. Drainage 

area, 21.7 sq mi. Records available, October 1950 to September 1956 In reports of 

Geological Survey. January 1940 to September 1950 In files of Harrlsburg district 

office, Geological Survey. Staff gage. Datum of gage Is at mean sea level (levels by 

city of Harrlsburg). Maximum contents during water year 1950-51, 16,720 acre-ft Dec. 8 

(elevation, 641.00 ft); minimum, 9,980 acre-ft Nov. 20 (elevation, 628.58 ft). Maximum 

contents during water year 1951-52, 17,060 acre-ft Mar. 11 (elevation, 641.58 ft); minimum, 11,480 acre-ft Nov. 1 (elevation, 631.75 ft). Maximum contents during water year 

1952-53, 16,630 acre-ft Jan. 25 (elevation, 640.83 ft); minimum, 9,650 acre-ft Nov. 20 

(elevation, 627.83 ft). Maximum contents during water year 1953-54, 16,330 acre-ft 

May 11-13 (elevation, 640.33 ft); minimum, 6,500 acre-ft Feb. 15, 16 (elevation, 619.67 

ft). Maximum contents during water year 1954-55, 13,060 acre-ft May 8-10 (elevation, 

634.75 ft); minimum, 7,610 acre-ft Dec. 13, 14 (elevation, 622.83 ft). Maximum contents during water year 1955-56, 18,380 acre-ft June 4-11 (elevation, 643.83 ft); minimum, 10,990 acre-ft Oct. 13 (elevation, 630.75 ft). Maximum contents during period 

1940-56, that of June 4-11, 1956; minimum (after first filling), 6,500 acre-ft Feb. 15, 

16, 1954 (elevation, 619.67 ft).

Reservoir formed by an earth-fill dam, with ungated concrete spillway at elevation 

644.00 ft (crest of spillway raised 4 ft in November 1954). Storage began Jan. 21, 

1940. Capacity at elevation 644.00 ft Is 18,480 acre-ft. Reservoir Is used for municipal water supply. Figures given herein represent total contents. There are no gates 

on spillway and regulation is controlled by valves on pipe through dam. Records furnished by city of Harrisburg.

Month-end elevation and contents of First Fork Sinnemahoning Creek Reservoir, Pa., January

to September 1956

Date

Sept . 30. ............................................

Elevation 

(feet)t

920 30

920.24

-

Contents 

(acre-feet)

2,029

-

Change in contents 

(equivalent in cfs)

+6.1

+1.5

-2.1

+2.8

t Elevation at 12 p.m.

Month-end elevation and contents of DeHart Reservoir, Pa., October 1950 to September 1956

Date

Oct. 31.............................................

Sept. 30. ............................................

Water year 1950-51. ...............................

Elevation 

(feet)t

634.33

-

Contents 

(acre-feet)

12,830

-

Change in contents 

(equivalent in cfs)

_

-17.6

+1.5

t Elevation at 12 p.m.
SUSQUEHANNA RIVER BASIN 441 

Reservoirs in Susquehanna River basin Continued 

Month-end elevation and contents of DeHart Reservoir, Pa.. October 1950 to September 1956 Continued

Date

Mar. 31. ............................................

July 31 .............................................

Aug. 31.............................................

Sept.3O... ..........................................

Water year 1951-52. . ..............................

Dec. 31.............................................

Feb. 28.............................................

May 31. ............................................

Water year 1952-53. ...............................

Oct. 31, 1953.......................................

Dec. 31.............................................

Feb. 28. ............................................

Mar. 31. ............................................

Apr. 30. ............................................

May 31.............................................

July 31. ............................................

Sept. 30............... ..............................

Water year 1953-54. ...............................

Oct. 31, 1954.......................................

Dec. 31.............................................

Jan. 31, 1955.......................................

May 31.............................................

July 31. ............................................

Sept. 3O. ............... .............................

Water year 1954-55. ...............................

Oct. 31, 1955.......................................

Nov. 30. ............................................

Dec. 31.............................................

Jan. 31, 1956.......................................

Feb. 29. ............................................

Mar. 31.............................................

Apr. 30.............................................

May 31. ............................................

July 31. ............................................

Sept. 3O. .......... ..................................

Water year 1955-56. ...............................

Elevation 

(feet)t

633.00

_

-

-

-

628.42

_

_

631.25

.

634.42

-

636.92

-

Contents 

(acre-feet)

12,120

.

-

16,210

-

-

9,910

.

-

12,510

11,230

_

12,880

-

14,320

-

Change In contents 

(equivalent In cfs)

-13 9

-5.0

-1.0

-25.7

-.1

-.5

-27 3

-31 2

-2.1

-11.5

-26.4

-1.0

+1.0

-6.2

+ 1.8

-10.6

+6.0

-22.9

+4.3

t Elevation at 12 p.m.
442 BUSH RIVER BASIN

Bynum Run at Bel Air, Md.

Location. Lat 39°32'30", long 76°19 I 50", on right bank 30 ft downstream from bridge on 

State Highway 22 and 1.0 mile east of Bel Air, Harford County.

Drainage area. 8.8 sq mi.

Records available. June 1944 to April 1951, July 1955 to September 1956. October 1950 

to September 1955 at site 0.5 mile upstream, published as "near Bel Air"; records not 

equivalent.

Gage. Water-stage recorder and concrete control. Altitude of gage is 235 ft (from 

Topographic map).

Average discharge. 7 years (1944-50, 1955-56), 9.97 cfs.

Extremes. Maximum discharge during year, 576 cfs Sept. 6 (gage height, 3.86 ft); minimum, 

1.4 cfs Sept. 4, 5; minimum daily, 1.5 cfs Sept. 3-5.

1944-51, 1955-56: Maximum discharge, 3,620 cfs July 19, 1945 (gage height, 6.25 ft), 

from rating curve extended above 560 cfs on basis of contracted-opening determination 

at gage height 6.18 ft; minimum, 0,6 cfs Aug. 3, 4, 6, 1955; minimum daily, 0.6 cfs 

Aug. 4, 1955.

Remarks. Records excellent except those for periods of ice effect or no gage-height 

record, which are good. No diversion above station for municipal supply of Bel Air 

since pumping plant was put on standby basis as of April 1955.

Revisions (water years). WSP 1171: 1944-49. WSP 1202: 1950.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.1

1.2

1.5

2.5

30

52

95

135

Discharge, in cubic feet per second, water year October 1955 to Septembi 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

3.1

2.7

2.5

275

2.5

*3,6

4.3

12

4.3

3.1

2.9

2.9

2.9

14 

S.8

7.6

4.6

3.6

3.1

3.1

2.9

2.7

2.7

2.9

2.9

2.9

2.7

2.7

3.8

12

*4.0

134.3

4.33

0.492

0.57

Nov.

3.1

2.9

3.1

3.3

2.9

2.7

3.3

3.8

3.1

4.4

14

4.9

4.0

3.6 

3.3

3.6

3.1

2.9

3.8

4.0

4.0

*4.0

3.3

3.3

2.9

3.1

2.9

2.9

2.9

2_J5

111.6

3.72

0.423

0.47

Dec.

2.7

2.9

3.3

373

3.1

2.7

2.7

2.7

3.1

3.1

2.7

2.5

2.5

2.5 

b2.5

b2.3

2.1

2.1

2.1

2.1

2.0

271

2.1

2.3

2.7

2.5

2.3

2.0

2.0

2.1

2.1

77.2

2.49

0.283

0.33

Jan.

2.0

1^8

2.3

2.3

2.3

2.3

2.1

bl.8

b2.1

4.0

6.8

6.5

5.2

b3.6 

b3.1

3.3

3.1

b2.9

2.9

3.1

2.9

2.9

2.9

2.7

2.7

2.5

2.5

2.5

3.8

*43

*13

144.9

4.67

0.531

0.61

Feb.

5.5

55

29

32

22

61

44

13

11

8.8

16

18

9.2

7.6 

10

8.0

8.0

66

16

11

7.6

6.2

5.5

a5.5

12

9.2

6.5

6.2

*4.6

514.4

17.7

2.01

2.17

Mar.

4.9

5.5

4.9

i-6.

4.6

4.9

4.9

22

10

7.2

12

11

14

Hi

46

32

17

14

14

16

27

36

21

12

11

8.8

8.0

11

11

7.6

582.9

18.8

2.14

2.46

Apr.

7.2

6.8

*12

11

7.6

9.6

65

34

14

9.7

8.8

7.6

6.8

6.5 

7.6

20

11

7.6

6.8

6.2

5.8

5.8

5.8

6.2

6.2

8.0

6.8

6.2

5.8

5 2

327.6

10.9

1.24

1.38

May

4.9

*7.6

8.8

6.8

5.8

5.8

7.2

5.8

5.2

5.5

5.5

4.9

6.8

4.9 

4.0

4.O

4.0

4.0

4.0

4.6

3.8

5.8

6.8

4.3

3.8

3.8

8.3

5.5

3.8

1J~3.6

170.6

5.50

0.625

0.72

June

13

118

22

8.4

5.8

4.9

4.3

*3.8

3.8

4.3

3.8

3.3 3".l

e.9

2.9

3.3

3.1

3.6

3.3

2.9

6.4

4.0

3.2

11

3.1

2.7

3.3

2.9

2.5

2^5

261.9

8.73

0.992

1.11

July

2.3

4.7

22

25

9.2

*6.5

4.3

3.6

12

6.8

3.6

2.9

2.7

2.7 

2.3

2.3

2.3

2.3

2.3

20

~5.8 94

4.6

4.6

4.3

3.3

3.6

3.8

3.3

2.7

2.3

272.1

8.78

0.998

1.15

Aug.

2.3

2.0

1.8

1.8

57

6.2

*4.3

3.3

2.7

2.5

2.3

2.1

3.1

2.9 

2.5

2.1

2.1

2.1

2.0

3.0

15

3.8

2.9

2.5

2.1

2.1

2.0

2.0

H1.6

145.3

4.69

0.533

0.61

Sept.

1.6

1.6

1.5

1.5

1.5

*81~6.8

3.1

2.5

2.3

2.1

2.3

2.1

2.1 

3.3

3.3

2.5

2.1

2.0

2.9

2.1

2.1

2.5

3.6

2.3

2.1

16

24

6.2

4 3

193.3

6.44

0.732

0.82

Calendar year 1955: Max 

Water year 1955-56: Max 157

Mean - 

Mean 8.02

Cfsm - In. - 

Cfsm 0.911 In. 12.4O

Peak discharge (base, 35O cfs). Mar. 14 (9 a.m.) 438 cfs (3.46 ft); June 2 (l p.m.) 444 cfs 

(3.48 ft); July 21 (1 a.m.) 534 cfs (3.74 ft); Sept. 6 (2 p.m.) 576 cfs (3.86 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for nearby stations.

b Stage-discharge relation affected by ice.
GUNPOWDER RIVER BASIN 443

Little Falls at Blue Mount, Md.

Location. Lat 39"36"16", long 76°37'16", on left bank at downstream side of Pennsylvania 

Railroad bridge, 0.2 mile north of Blue Mount, Baltimore County, 0.6 mile upstream from 

mouth, 0.9 mile downstream from First Mine Branch, and 1.2 miles south of White Hall.

Drainage area. 52.9 sq. mi.

Records available. June 1944 to September 1956.

Gage . Water-stage recorder. Altitude of gage is 305 ft (from topographic map).

Average discharge. 12 years, 71.0 cfs.

Extremes. Maximum discharge during year, 2,330 cfs July 21 (gage height, 6.63 ft), from 

rating curve extended above 1,300 cfs as explained below; minimum, 13 cfs Jan. 8 (result of freezeup); minimum daily, 30 cfs Sept. 14.

1944-56: Maximum discharge, 5,730 cfs Sept. 10, 1950 (gage height, 11.93 ft in gage 

well, 13.32 ft from floodmark), from rating curve extended above 1,300 cfs on basis of 

contracted-opening determination of peak flow; minimum, 6.0 cfs Feb. 20, 1947; minimum 

daily, 12 cfs Aug. 3, 1955.

Flood in August 1933 reached a stage of about 14 ft, from information by Pennsylvania 

Railroad.

Remarks. Records good except those for periods of ice effect, which are fair. Occasional 

slight diurnal fluctuation at low flow caused by mill above station.

Revisions (water years). WSP 1111: 1944(M), 1945-47(P) .

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Jan. 30 Jan. 30 to Sept. 30

27

45

95

Discharge, In cubic feet per second, water year October 1955 to September 1956

0.9 

1.1 

1.4

27

49

105

2.0 

3.0 

4.0

260

600

990

0.8 

1.0 

1.3

1.6 

3.0

15S 

600

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

42

40

40

39

39

60

52

69

51

44

*42

40

39

659

128

90

72

67

64

59

56

54

52

54

52

51

49

49

54

97

e?O£

2,366

76.3

1.44

1.66

Nov.

*52

51

54

54

51

49

56

56

52

56

88

59

56

54

52

60

52

51

54

54

54

54

*52

51

49

49

49

49

b44

b42

1,604

53.5

1.01

1.13

Dec.

b46

46

49

49

48

45

44

45

45

44

44

b41

b41

b42

42

b39

b41

b40

b39

b39

b39

b39

39

39

40

b38

b36

*b34

bI5

b40

b36

1,289

41.6

0.786

0.91

Jan.

b36

b35

b34

34

34

b34

b33

b32

b39

b49

49

48

40

36

36

36

38

36

b35

39

36

36

34

b31

b31

b31

b31

b31

36

b280

b95

1,425

46.0

0.870

1.00

Feb.

*b55

3TI

216

144

140

347

210

140

112

99

103

103

86

79

81

74

72

137

106

93

82

74

72

68

84

72

63

62

*56

__ _ _ _ .

3,341

115

2.17

2.35

Mar.

56

56

54

52

53,

52

60

88

67

58

67

70

70

259

133

142

133

114

104

95

95

103

112

112

95

91

86

82

88

86

81

2,812

90.7

1.71

1.98

Apr.

77

*75

103

93

81

86

166

151

114

103

95

91

88

84

88

103

86

84

79

77

74

72

72

74

72

79

72

70

68

65

2,642

88.1

1.67

1.86

May

*63

70

75

68

65

65

82

68

63

65

63

63

95

67

60

58

57

58

57

57

54

60

65

56

52

51

67

62

52

51

67

1,956

63.1

1.19

1.38

June

79

~90 115

67

*58

56

51

50

50

52

46

44

42

41

41

42

41

48

44

41

48

45

40

103

42

39

38

37

36

36

1,562

52.1

0.985

1.10

July

36

37

90

253

91

*70

56

51

141

52

45

41

41

41

48

38

38

37

36

82

"95 594

75

74

65

57

51

48

46

45

42

2,506

80.8

1.53

1.76

Aug.

41

40

39

39

165

68

57

*48

44

41

39

39

42

41

39

38

38

37

37

44

81

45

41

39

38

38

37

37

36

35

34

1,437

46.4

0.877

1.01

Sept.

35

36

33

33

33

*56

41

33

32

32

32

31

31

30

38

38

35

33

34

39

35

36

37

56

38

37

62

42" 67

38

1,153

38.4

0.726

0.81

Calendar year 1955: Max 1,080 Mln 12 Mean 56.0 Cfsm 1.06 In. 14.37

Water year 1955-56: Max 659 Mln 30 Mean 65.8 Cfsm 1.24 In. 16.95

(base. 1.500 cfs). Oct. 14 (6:30 a.m.) 2,27 

ft); July 21 (3:30 a.m.) 2,330 cfs (6.63 ft).

Peak discharge 

1,740 cfs (5.58 ft

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

,270 cfs (6.53 ft); July 4 (6:30 p.m.)
444 GUNPOWDER RIVER BASIN

Slade Run near Glyndon, Md.

Location.--Lat 39 C 29'40", long 76 C 47'45", on left bank at downstream side of bridge on 

Longenecker Road, 1.1 miles upstream from mouth, 1.6 miles northeast of Glyndon, Baltimore County, and 2.6 miles northeast of Reisterstown.

Drainage area. 2.27 sq mi.

Records available. September 1947 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 420 ft (from topographic map).

Average discharge. 9 years, 2.63 cfs.

Extremes. Maximum discharge during year, 485 cfs July 21 (gage height, 4.68 ft), from 

rating curve extended above 92 cfs by logarithmic plotting; minimum, 0.8 cfs Dec. 27, 

result of freezeup.

1947-56: Maximum discharge, that of July 21, 1956; minimum, 0.02 cfs Aug. 18, 1954, 

caused by regulation from unknown source; minimum daily, 0.4 cfs Sept. 12-14, 1964, 

July 23, 27-29, Aug. 2, 1955.

Remarks. Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Jan. 30, 

June 1 to Sept. 3O Jan. 31 to May 31

1.3

1.4

1.5

0.9 

2.3 

4.8

1.6

1.7 

2.0

9.1

15

39

1.3

1.4

1.5

1.2

z.a

5.5

1.6 

1.8

9.6

22

Discharge, In cubic feet per second, water .year October 1955 to September 1956

Day

1 

2

3

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29 

30

31

Ttotal

Mean

Cfsm

In.

Oct.

1.8 

14T7S

1.6

2.1

1.9

2.3

1.9

1.8

*1.6

1.6

1.6

"1.8 34

2.7

2.5

2.3

2.1

2.1

2.1

1.9

1.8

1.9

1.9

1.9

1.9

1.8 

1.9

2.4

2.1

94.1

3.04

1.34

1.54

Nov.

1.9 

1.9

2.1

1.9

1.9

2.1

2.1

1.9

2.3

24.

27T

1.9

1.9

1.9

1.9

1.8

T78

1.9

1.9

1.9

1.9

1.9

*1.9

1.9

1.9

1.9

1.9 

1.8

1.8

58.6

1.95

0.859

0.96

Dec.

rii!a

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.5

1.5

1.6

bl.4

T7S

1.5

1.5

bl.4

bl.4

1.5

1.5

1.5

1.5

1.5

bl.4

bl.4 

*bl.4

1.5

bl.4

49.1

1.58

0.696

0.80

Jan.

1.4 

1.4

1.5

1.5

1.4

1.4

bl.3

bl.3

1.9

1.9

1.9

1.6

1.5

1.5

1.5

1.5

bl.S

1.5

1.5

1.5

1.5

1.5

bl.4

bl.3

bl.3

bl.2

1.1

"370 9 7

55.5

1.79

0.789

0.91

Feb.

-5.5 IF

5.3 

4.2

11

7.0

4.2

3.5

3.0

3.5

3.5

2.S

2.8

2.8

2.8

2.S

4.8

3.5

2.8

2.8

2.6

2.4

2.4

3.2

2.8

2.6

2.6 

2.4

114.8

3.96

1.74

1.88

Mar.

*2.4

z'.i

2.4 

2.4

2.4

2.4

3.5

2.6

2.4

3.0

2.8

3.0

~4.8 15

5.5

4.8

4.0

3.7

3.5

3.7

4.2

4.0

3.7

3.2

3.2

3.0

2.8 

3.0

3.0

2.8

112.2

3.62

1.59

1.84

Apr.

2.8 

*2.8

3.7

3.2 

2.8

3.2

5.5

4.5

3.7

3.5

3.2

3.0

2.8

2.8

3.0

3.5

2.8

2.8

2.6

2.6

2.6

2.4

274

2.6

2.6

2.6

2.6

2.6 

2.4

2.4

90.0

3.00

1.32

1.47

May

*2.2 

2.4

2.4

2.4 

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.6

2.2

2.1

2.1

Ttf

2.1

2.1

1.9

2.1

4.4

2.1

2.1

1.9

2.8

2.2 

2.1

2.1

d!8_

85.7

2.76

1.22

1.40

June

frr s!i

2 5 

2^3

2.1

2.1

1.9

1.9

1.9

1.9

1.8

1.6

1.6

1.6

1.9

1.8

2.1

1.8

1.6

2.1

1.8

1.8

1.9

1.6

1.6

1.6

1.5

175

1.5

61.6

2.05

0.903

1.01

July

1.5

lie

2.1

2.3

1.6

1.9

4.9

2.1

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.4

33

35

3.8

2.9

2.9

2.5

2.3

2.5

2.3 

2.1

2.1

1 9

127.9

4.13

1.82

2.10

Aug.

1.9 

1.8

1.6

1.6

1.9

1.8

 1.6

1.6

1.5

1.5

1.5

1.6

1.6

1.6

1.5

1.5

1.5

1 4

TTa

2.7

1.8

1.8

1.6

1.6

1.5

1.5

1.5 

1.5

1.5

1.5

52.0

1.68

0.740

O.S5

Sept.

1.5 

1.5

TTT

1.4

2.0

*1.6

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.5

1.5

1.4

1.4

1.4

1.5

1.4

1.4

1.5

1.6

1.4

1.4

2.2

ft!

1.6

46.0

1.53

0.674

0.75

Calendar year 1955: Max 70 Mln 0.4 Mean 2.16 Cfsm 0.952 In. 12.93

Water year 1955-56: Max 35 Mln 1.1 Mean 2.59 Cfsm 1.14 In. 15.51

Peak discharge (base. 90 cfs). Oct. 14 U a.m.) 203 cfs (3.35 ft)i May 31 (10 p.m.) about 195 cfs

(3.3 ft); July 21 (1 a.m.) 485 cfs (4.68 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed from graph partly reconstructed on basis of 

crest-stage-lndlcator reading.
GUNPOWDER RIVER BASIN 445

Western Run at Western Run, Md.

Location. Lat 39°30'38" , long 76°40'37" , on right bank 100 ft downstream from bridge on 

Western Run Road, 0.3 mile southeast of Western Run, Baltimore County, 2.5 miles northwest of Cockeysville, and 3.2 miles upstream from Beaverdam Run.

Drainage area. 59.'8 sq mi.

Records available. September 1944 to September 1956.

Gage. Water-stage -recorder. Altitude of gage is 260 ft (from topographic map).

Average discharge. 12 years, 75.3 cfs.

Extremes. Maximum discharge during year, 5,590 cfs July 21 (gage height, 10.84 ft), from 

rating curve extended above 1,100 cfs on basis of slope-area determinations at gage 

heights 8.55 and 9.88 ft; minimum, 15 cfs Jan. 8, result of freezeup.

1944-56: Maximum discharge, that of July 21, 1956; minimum, 14 cfs Dec. 7, 1954, 

Jan. 28, 1955.

Remarks. Records good except those for periods of Ice effect or no gage-height record, 

which are fair.

Revisions (water years). WSP 1382: 1946(M).

Rating table, Mater year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.2

1.3

1.4 

1.6

2.0 

4.O 

6.0

225

890

1,700

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

45

41

40

4<J

40

59

59

76

55

47

*41

41

41

l.OOO 

17?

102

86

76

74

68

66 

64

62

64

62

62

59

59

62

74

64

2,901

93.6

1.57

1.80

Nov.

*57

55

57

59

55

55

59

64

55

59

$1

62

55

53 

51

51

47

45

53

55

53 

51

51

*49

47

47

47

47

41

TS

1,62O

54.0

0.903

1.01

Dec.

41

43

45

47

43

41

40

41

43

41

40

b39

b39

b39 

4O

b34

b40

b4O

37

b36

b36 

b37

40

39

39

36 bsi

bST

b36

b36

b36

1,210

39.0

0.652

0.75

Jan.

b36

b35

34

33

32

32

32

b28 b4"0"

49

57

59

49

4O 

39

39

40

37

39

41

37 

37

37

b31

b37

b33

b33

b33

39

T5B- 244

1,457

47 ,O

0.786

O.91

Feb.

*59

3BT

214

166

139

330

23O

129

111

1OO

102

111

89

81 

86

81

78

153

111

94

84 

76

71

71

91

84

74

71

*62

3,501

121

2. 02

2.18

Mar.

57

59

57

IB- 55

55

57

86

71

62

71

76

81

353

TSF

164

152

129

117

108

108

117

117

108

94

91

64

81

86

84

76

3,066

98.9

1.65

1.91

Apr.

74

*74

105

97

84

84

162

IJ7

111

1OO

94

89

86

84 

84

100

84

81

81

78

76 

78

78

81

81

84

78

76

74

68

2,675

89.2

1.49

1.66

May

*64

71

76

71

66

64

68

64

59

62

62

62

97

62 

57

55

53

55

53

57

51 "55

103

59

53

51

74

66

53

53

104

1,998

64.5

1.08

1.24

June

180

121

108

78

*68

64

62

57

57

56

50

47

45

43 

43

44

44

54

50

45

54 

50

45

80

50

40

40

38

37

36.

1,786

59.5

0.995

1.11

July

36

37

60

100

75

*62

47

43

102

55

4O

36

36

36 

34

34

34

33

32

125

1.560 

156

115

105

91

78

74

68

64

COot 

57

3,481

112

1.87

2.16

Aug.

55

53

51

51

117

76

64

 55

51

49

45

45

45

49 

45

41

40

39

39

41

94 

55

47

43

40

40

39

39

37

1,557

SO. 2

0.839

0.97

Sept.

36

35

35

34

34

*54

53

37

34

34

34

34

34

33 

34

39

34

^

3?

39

32 

33

34

45

36

33

43

6§

47

41

1,143

38.1

0.637

0.71

Calendar year 1955 : Max 2,O8O Mln 15 Mean 62.2 Cfsm 1.04 In. 14.11

Water IfalfCl year y^OLL 1955-56: X?«J«J -OO i Max FUUL 1,560 i.,OOU Mln r»JJl 28 £O Mean nceul 72.1 fC.X VX Cfsm 0IU X 1.21 . C i. In. All. 16.41 J.D.4J.

Feak discharge (base. 85O cfsK Oct. 14 (1O a.m.) 2,510 cfs (7.38 ft)j Feb. 2 (3:3O p.m.) 1,O80 

cfs (4.53 ft)j Feb. 6 (6:30 p.m.) 995 cfs (4.3O ft)j July 21 (about 4:3O a.m.) 5.59O cfs (1O.84 ft),

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Kote. No gage-height record June 1O to July 5, July 13-23j discharge estimated on basis of recorded range In stage, weather records, and records for nearby stations.
446 GUNPOWDER RIVER BASIN

Gunpowder Falls near Carney, Md.

Location. Lat 39°25'25", long 76°30'40", on left bank 1 mile downstream from Cowen Run, 

2 miles north of Carney, Baltimore County, and 2f miles downstream from Loch Raven Dam.

Drainage area. 314 sq ml.

Records available. September 1949 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 135 ft (from topographic map).

Extremes. Maximum discharge during year, 5,430 cfs July 21 (gage height, 8.29 ft); minimum, 2.7 cfs Jan. 8, result of freezeup.

1949-56: Maximum discharge, 7,000 cfs July 9, 1952 (gage height, 9.50 ft), from 

rating curve extended above 2,800 cfs by logarithmic plotting; minimum, 1.2 cfs 

Sept. 7, 1954.

Remarks.--Records good except those for periods of Ice effect, which are fair. Figures 

of discharge do not Include water diverted at Loch Raven Dam for municipal supply of 

Baltimore and occasional small diversions just below Loch Raven Dam to maintain Lake 

Montebello at capacity. Flow completely regulated by Prettyboy and Loch Raven Reservoirs (combined usable capacity, 43,270,000,000 gal).

Rating tables, water year 1955-56, except periods of Ice effect 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to July 21 July 22 to Sept. 3O

1.4

1.5

1.6

1.7

2.4

3.0 

3.5 

4.0 

5.0 

7.0

125

310

543

860

1,660

3,840

1.4

1.5

1.6

3.7 

6.2

1.7 16

1.8 24

2.0 47

Note.--Same as preceding 

table above 2.O ft.

Discharge. In cubic feet pe ond, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

6.6

6.2

6.2

6.2

*6.2

7.9

7.9

20

7 .O

5.5

5.2

5.2

5.2

"2? 167

Ill

72

36

13 

9.3

8.4

7.9

7.9

7.9

8.4

8.8

8.8

9.3

13

16

*9 . 8

638.8

20.6

+476

Nov.

8.8

8.4

8.8

8.8

8.4

8.8

9.3

10

9.3

10

16

9.3

8.8

7.9

7.9

7.9

7.4

7.0

8.8 

8.4

7.9

*7.9

7.9

7.4

7.0

7.4

7.4

7.4

7.0

7.0

254.3

8.48

+291

Dec.

6.6

7.0

7.0

7.0

6.6

6.6

6.6

6.6

7 .0

6.6

6.2

5.8

6.2

5.8

b6 .2

b5.5

5.5

5.5

5.5

b5.2

5.2

5.5

5.8

5.5

5.5

5.2

b4.6

*4.6

4.9

4.6

b4.6

181.0

5.84

+223

Jan.

b4.3

b4.3

4.6

4.3

4.3

4.3

b4.3

b4.0

b4.6

5.5

6.6

6.6

5.8

5.2

4.9

5.2

5.5

4.9

5.2 

5.5

5.2

5.2

5.2

b4.9

4.9

b4.9

b4.6

4.6

6.2

?R£O

*13

184.6

5.95

+276

Feb.

33~ b8.0

20

20

78

228

804 355"

288

186

132

132

100

67

52

41

27

85

123 

111

76

47

27

14

19

23

12

*15

9.8

3,267.8

113

+526

Mar.

7.4

7.9

7.0

7.0

6.6

7.0

7.0

13

8.4

7.9

10

10

13

198

330

342

376 3"2"2~

266 

195

155

150

153

164

135

111

94

72

70

76

67

3,388.2

109

+462

Apr.

53

49

*52

92

77

67

192

299

246

177

138

114

94

81

92

183

204

195

180 

161

140

132

135

128

130

135

132

128

123

125

4,054

135

+372

May

98

*89

111

116

98

87

100

100

72

63

55

58

138

148

104

85

47

34

24 

27

18

19

67

52

25

14

24

50

36 

23

34

2,016

65.0

+302

June

252

407

455

306

189

132

96

*67

49

46

52

39

22

12

7.9

7.9

7.4

7.9

7.0 

7.0

9.3

7.9

8.2

9.8

6.6

6.2

6.2

5.8

5.5 

575

2,240.1

74.7

+250

July

5.5

5.2

5.2

5.8

*8.4

7.9

55

60

154

236

135

67

31

19

8.4

5.5

5.2

4.9

4.6 

92

5.660

1,990

*930

480

318

201

145

100

68 

47

27

8,881.6

287

+292

Aug.

17

12

8.7

7.6

23

*67

74

57

34

18

11

7.9

7.2

7.6

5.9

5.6

5.3

5.0

5.0 

5.9

15

7.2

6.2

5.9

5.6

5.3

5.3

5.3

5.3

5.0

5.0

455.8

14.7

+228

Sept.

6.8

6.2

5.6

5.0

*5^

14

8.3

5.9

5.3

5.3

5.3

5.6

5.6

5.6

5.6

5.9

5.6

5.3

5.3 

6.2

5.6

5.6

5.9

7.2

6.2

5.9

11

12

7.6 

6.5

196.9

6.56

+ 187

Calendar year 1955: Max 1,990 Mln 2.4 Mean 34.5

Water year 1955-56: Max 3,66O Mln 4.O Mean 70.4

* Discharge measurement made on this day.

t Diversion above station from Loch Raven Reservoir for municipal supply of Baltimore and change 

In contents In Prettyboy and Lock Raven Reservoirs, equivalent In cubic feet per second; for- calendar year 1955, +3O6 cfs; for water year 1956, +323 cfs. Records furnished by Baltimore Department 

of Public Works.

b Stage-discharge relation affected by Ice.
GUNPOWDER RIVER BASIN 447

Little Gunpowder Falls at Laurel Brook, Md.

Location.--Lat 39°30'18", long 76°25'56", on right bank 700 ft upstream from Laurel Brook, 

0.4 mile southwest of Laurel Brook railroad station, Harford County, 1 mile downstream 

from Maryland & Pennsylvania Railroad bridge, and 5 miles southwest of Bel Air.

Drainage area. 36.1 sq mi.

Records available. December 1926 to September 1956.

Gage. Water-stage recorder. Datum of gage is 261.43 ft above mean sea level (city of 

Baltimore benchmark).

Average discharge. 29 years (19S7-56), 47.3 cfs.

Extremes. Maximum discharge during year, 1,860 cfs Oct. 14 (gage height, 5.56 ft), from 

rating curve extended above 1,100 cfs on basis of slope-area determination at gage 

height 6.20 ft; minimum, 9.8 cfs Jan. 8 (gage height, 0.85 ft), result of freezeup.

1926-56: Maximum discharge, 9,200 cfs Aug. 23, 1933 (gage height, 10.3 ft), from 

rating curve extended above 2,300 cfs on basis of slope-area determination at gage 

heights 5.70, 6.15, and 10.3 ft; minimum, 3.1 cfs Feb. 15, 1931, Mar. 15, 193S, 

Feb. SO, 1947; minimum gage height, 0.59 ft Feb. 20, 1947.

Remarks.--Records excellent except those for periods of ice effect or no gage-height 

record, which are fair.

Revisions (water years).--WSP 726: 1927-31, drainage area.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.0 

1.2 

1.5 

2.0

16

26

50

105

Z.5 

3.0 

4.0

186

311

690

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

28

28

27

26

27

*33

34

50

36

30

28

28

28

~T? 519

64

48

41

39

35

35

33

32

32

32

32

31

31

42

97

55

1,673

54.0

1.50

1.72

Nov.

39

36

36

36

33

33

35

39

35

35

59

39

37

35

35

35

32

31

35

36

35

35

*35

33

32

32

32

32

27

57

1,051

35.0

0.970

1.08

Dec.

b28

30

3232"

31

30

29

29

30

30

' b27

b26

b26

b26

29

b25

b27

b27

b26

b26

b26

b25

26

26

28

27

b25

b22

b23

b25

b24

843

27.2

0.753

0.87

Jan.

b23

b23

25

26

26

b26

b25

b22

b25

33

38

38

35

29

28

28

28

b25

b24

b28

b27

b26

26

b22

b25

b24

b24

b23

b26

b!72

*B7

1,017

32.8

0.909

1.05

Feb.

b42

243

124

116

85

239

142

69

58

51

53

60

47

42

46

43

42

106

59

49

43

b37

b35

b35

50

46

40

*39

35

2,076

71.6

1.98

2.14

Mar.

35

37

36

35

34

34

34

58

45

38

45

48

49

~82 222

92

85

68

60

57

58

66

78

67

52

50

47

45

49

50

45

1,801

58.1

1.61

1.86

Apr.

43

43

*57

57

47

49

-9"5 115

61

53

50

48

46

44

46

74

52

47

46

43

42

42

42

44

44

48

44

43

40

39_

1,547

51.6

1.43

1.59

May

37

*43

46

41

38

37

39

35

35

35

35

34

51

37

33

32

33

32

32

35

32

32

38

32

30

30

44

39

32

32

82

1,161

37.5

1.04

1.20

June

192

-9"5 266

57

46

42

38

35

35

35

34

31

30

28

28

30

30

38

34

30

37

37

30

48

31

28

30

31

27

2£

1,482

49.4

1.37

1.53

July

a26

a27

a70

a200

*a55

37

33

30

82

a32

a31

a30

a30

a30

a27

a28

a28

a27

a25

a4T

a500

a65

a50

48

39

32

35

32

32

28

26

1,780

57.4

1.59

1.83

Aug.

26

25

25

24

86

*42

35

30

28

26

25

24

24

28

25

22

22

21

20

22

57

30

25

24

22

22

22

21

20

20

20

863

27.8

0.770

0.89

Sept.

25

25

21

20

20

25

29

22

20

20

20

20

19

18

20

25

20

19

18

22

18

19

19

25

20

19

26

42

?8

25

669

22.3

0.618

0.69

Calendar year 1955: Max 1,880 Min 9.4 Mean 40.3 Cfsm 1.12 In. 15.13

Water year 1955-56: Max 519 Min 18 Mean 43.6 Cfsm 1.21 In. 16.45

Peak discharge (base. 1,400 efs). Oct. 14 (6 a.m.) 1,860 cfs (5.56 ft); July 21 (time unknown) 

1,850 cfs (5.55 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of engineer's inspection, weather records, 

and records for nearby stations.

b Stage-discharge relation affected by ice.
448 PATAPSCO RIVER BASIN

Cranberry Branch near Westminster, Md.

Location.--Lat 39°35'35", long 76°58'05", on left bank 80 ft upstream from small wooden

 bridge, half a mile upstream from mouth, and 1.8 miles northeast of Westminster, Carroll 

County.

Drainage area. 3.29 sq mi (revised).

Records available. September 1949 to September 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage Is 670 ft (from topographic map).

Average discharge.--? years, 4.09 cfs.

Extremes.--Maximum discharge during year, 200 cfs July 21 (gage height, 4.00 ft); minimum, 

0.6 cfs Jan. 7, result of freezeup.

1949-56: Maximum discharge, 720 cfs July 4, 1951 (gage height, 5.14 ft, from highwater mark In well), from rating curve extended above 200 cfs by logarithmic plotting; 

minimum, 0.4 cfs Jan. 20, 1955, result of freezeup.

Remarks.--Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair.

Revisions. Revised flc-jres of discharge, in cubic feet per second, for the water years

 1954-55, superseding those published in WSP 1332 and 1382, are given herewith:

1953 

Dec. 6

1954 

Mar. 1

1955 

Feb. 6

1955-Con. 

Feb. 7. 

Mar. 4. ...... 8.2

...... 11

22......... 29

June 8......... 13

Aug. 12......... 11

17......... 5.6

IS......... 37

19......... 11

30......... 11

Month

Calendar year 1953. ......

March 1954. ................ 

Water year 1953-54. ......

Calendar year 1954. ......

Water year 1954-55. ......

Cfs -days

117.6

-

Maximum

25

24

24

23

70

Minimum

1.3

2.4

.7

.8

Mean

4.64

3.79

2.22

4 95

2.94

Per square 

mile

1.41

1.15

.675

.894

Runoff in 

Inches

19.15

1.33

9.13

12.14

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2.2

2.2

2.1

2.1

2.1

3.0

*2.7

3.3

2.5

2.2

2.1

2.0

27o

~5~.l 32

3.6

3.1

3.0

2.8

2.7

2.5

2.4

2.2

2.4

2.4

2.2

2.2

2.1

2.5

3.5

2.7

109.9

3.55

1.08

1.24

Nov.

2.1

2.4

2.5

2.5

2.4

2.4

3.8

2.7

2.5

4.3

5.1

377

2.8

2.5

2.4

2.4

2.2

2.1

2.4

2.4

2.4

2.2

2.2

2.1

*2.2

2.2

2.2

2.1

2.0

1.9

75.4

2.51

0.763

0.85

Dec.

2.0

2.2

2.4

2.7

2.4

2.2

2.1

2.2

2.5

2.2

2.1

2.1

2.1

2.1

2.2

bl.7

1.9

2.1

2.0

bl.7

1.7

bl.7

1.9

2.1

2.7

2.2

bl.9

bl.7

*2.0

2.2

bl.9

64.9

2.09

0.635

0.73

Jan.

1.9

1.9

2.0

2.1

2.1

2.0

1.9

bl.6l79~

3.1

3.1

2.8

2.5

2.2

2.2

2.2

2.2

2.1

2.2

2.2

2.1

2.1

2.0

bl.7

bl.7

1,9

bl.6

bl.6

2.1

d25~4.4

90.4

2.92

0.888

1.02

Feb.

3.0

*d2l

T?

6.1

5.1

d!9

13

7.2

6.1

5.3

6.3

5.6

4.4

4.0

4.9

4.2

3.8

d!2

5.1

4.6

4.0

3.5

3.3

3.1

5.6

4.2

3.6

3.5

3.1

186.6

6.43

1.95

2.11

Calendar year 1955: Max 70 Min O.8

Mar.

*3.1

3.3

3.1

3.1

5.0

3.0

3.8

7.0

3.8

3.3

4.2

4.4

4.4

d24

7.6

9.4

8.3

6.3

5.8

5.3

6.1

6.9

6.9

6.3

5.1

5.1

4.9

4.6

5.1

4.9

4.4

176.5

5.69

1.73

2.00

Apr.

4.2

*4.2

9.6

6.1

4.9

6.6

11

8~. e'.e3

6.1

5.6

5.3

4.9

4.9

5.1

5.8

4.9

5.1

4.9

4.6

4.2

4.2

4.6

4.9

4.6

4.4

4.2

4.2

4.0

*3. 8

161.8

5.39

1.64

1.83

May

3.5

4.2

4.2

3.8

3.6

3.6

4.2

3.5

3.3

3.3

3.3

3.3

7.0

3.5

3.0

3.0

3.0

3.1

3.0

3.0

2.8

2.7

8.5

377

2.8

2.5

BTT

3.5

2.8

2.6

3.4

112.3

3.62

1.10

1.27

June

3.8

5.6

5.3

*3.1

2.8

2.7

2.5

2.4

2.5

2.5

2.4

2.1

2.1

2.0

2.0

2.0

2.1

3.6

2.4

2.2

2.5

2.1

2.5

5.7 272"

2.1

2.0

2.0

1.9

1.7

80.8

2,69

0.818

0.91

July

ITT

*4.2

26

6.7

6.5

3.8

3.5

d!4

3.5

3.0

2.7

3.1

2.7

2.5

2.5

2.5

2.4

2.2

22

40"3.3

5.6

6.3

4.6

3.8

3.6

3.5

3.3

3.1

3.1

202.3

6.53

1.98

2.29

Aug.

3.0

2.8

2.8

2.8

5.8

4.4

3.6

3.1

3.0

»2.7

2.5

2.4

2.5

2.5

2.4

2.2

2.2

2.1

2.1

3.0

5.3

2.8

2.5

2.2

2.1

2.1

2.1

2.1

2.0

2.0

1.9

85.0

2.74

0.835

0.96

Sept.

2.0

2.0

1.9

1.9

1.9

2.9

*2.2

2.1

2.0

2.0

1.9

2.0

1.9

1.9

2.9

2.5

2.1

2.0

1.9

2.6

2.0

2.0

2.1

2.5

2.0

2.0

5.2

375

2.5

2.4

68.8

2.29

0.696

0.78

Mean 3.12 Cfsm O.948 In. 12.88

Water year 1955-56: Max 40 Min 1.6 Mean 3.87 Cfsm 1.18 In. 15.99

Peak discharge (base. 80 cfs).--July 4 (5 p.m.) 136 cfs (3.70 ft); July 21 (2 a.m.) 200 cfs 

(4.00 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed from partly reconstructed gage-height graph 

based on recorded graph and crest-stage-indicator readings.
PATAPSCO RIVER BASIN 449

SJorth Branch Patapaco River at Cedarhurst, Md.

Location. Lat 39"30"00", long 76"53'00", on left bank at downstream aide of private footbridge at Cedarhurst, Carroll County, 0.8 mile downstream from Roaring Run and 8 miles 

southeast of Westminster.

Drainage area. 56.6 sq mi.

Records available. September 1945 to September 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 425 ft (from topographic map).

Average discharge. 11 years, 70.9 cfs.

Extremes. Maximum discharge during year, 3,420 cfs July 21 (gage height, 9.47 ft), from 

rating curve extended above 1,700 cfs by logarithmic plotting; minimum, 7.5 cfs Oct. 22 

(gage height, 1.30 ft), result of filling pond above station; minimum daily, 18 cfs 

July 19.

1945-56: Maximum discharge, 4,130 cfs Aug. 13, 1955 (gage height, 10.38 ft); minimum daily, 12 cfs Aug. 2, Sept. 14, 1954.

Remarks. Records fair. Slight diurnal fluctuation at low and medium flow caused by mill 

above station. Records do not include a mean discharge of 1.14 cfs diverted above 

station for municipal supply of Westminster; sewage effluent discharged into Little 

Pipe Creek.

Rating table, water year 1955-56 (gage height. In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used July 25 to Sept. 30)

1.4 

1.6 

2.0

17

40

123

3.0 

5.O 

6.0

390

1,070

1,470

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21 

22

23

24

25

26

27

28

29

30 

31

Itatal

Mean

Cfsm

In.

Oct.

33

30

29

29

29

43

 44

53

38

33

30

30

29

663

150

80

64

58

54

50

47 

44

44

44

44

43

43

40

43

75

50

2,086

67.3

1.19

1.37

Nov.

42

42

*42

44

38

37

41

51

41

44

"65 116

50

48

46

48

44

38

43

44

44 

43

40

*38

37

37

37

37

29

35

1,331

44.4

0.784

0.87

Dec.

32

37

40

41

37

34

33

33

54

32

28

27

27

29

36

22

30

36

34

25

26 

25

34

37

43

38

26

22

»2S

34

25

985

31.8

0.562

0.65

Jan.

26

25

34

34

33

32

30

22

55

59

65

57

50

38

38

34

37

36

28

40

32 

30

29

24

24

28

23

22

37

270

109

1,370

44.2

0.781

0.90

Feb.

61

*300

250

160

150

350

255

150

110

100

90

110

84

80

84

84

78

150

105

90

80 

70

65

60

95

85

70

68

56

3,485

120

2.12

2.29

Mar.

*54

57

55

53

48

48

57

110

75

65

70

75

90

375

175

185

167

144

131

116

116 

128

136

123

101

99

95

90

95

86

79

3,298

106

1.87

2.17

Apr.

75

 73

127

99

77

SI

191

171

121

109

104

95

95

86

90

104

90

86

79

73

67 

65

67

71

67

67

63

59

55

*50

2,657

88.6

1.57

1.75

May

48

55

63

55

48

48

55

48

44

46

44

46

~ss 100

50

48

44

44

43

44

41 

41

85

46

41

40

75

59

41

40

46

1.586

51.2

0.905

1.04

June

73

50

*44

41

38

37

37

38

36

33

32

29

32

32

32

46

40

34

44

38

36

81

30

27

26

25

25

24.

1,224

4O.8

0.721

0.80

July

23

23

*36

621

137

119

53

40

109

44

33

27

27

27

20

20

21

20

245" 18

1.150 

150

100

90

84

67

61

55

48

46

43

3,557

115

2.03

2.34

Aug.

43

41

40

38

93

61

51

*43

40

38

37

36

36

37

34

33

32

30

30

34

84 

38

36

34

32

32

30

30

28

27

27

1,225

39.5

0.698

O.8O

Sept.

26

26

26

24

24

73

*4T

29

26

25

25

25

24

23

25

38

26

24

24

32

24

24

25

34

26

24

38

67

36

33

920

30.7

0.542

0.60

Calendar year 1955: Max 2,240 Min 13 Mean 56.8 Cfsm l.OO In. 13.62

Water year 1955-56: Max 1,150 Min 18 Mean 64.8 Cfsm 1.14 In. 15.58

Peak discharge (base. 1.20O efs). Oct. 14 (6 a.m. 

cfs (5.80 ft)j July 21 (2 a.m.) 3,42O cfs (9.47 ft). 

* Discharge measurement made this day.

) 1,620 cfs (6.37 ft); July 4 (9:30 p.m.) 1,390
450 PATAPSCO RIVER BASIN

North Branch Patapsco River near Marriottsville, Md.

Location. Lat 39°21i56", long 76°53'06", on left bank at downstream side of highway bridge 

0.9 mile downstream from Liberty Dam, 1.2 miles northeast of Marriottsville, Howard 

County, and 2.3 miles upstream from confluence with South Branch.

Drainage area. 165 sq mi.

Records available. October 1929 to September 1956.

Gage. Water-stage recorder. Datum of gage is 269.78 ft above mean sea level (city of 

Baltimore benchmark).

Extremes.--Maximum discharge during year, 7,330 cfs July 21 (gage height, 14.20 ft, from 

high-water mark In well); minimum, 0.5 cfs Oct. 5, Nov. 17, 18, 19.

1929-56: Maximum discharge, 19,500 cfs Aug. 24, 1933 (gage height 20.8 ft), from 

rating curve extended above 2,700 cfs on basis of velocity-area studies; minimum, 

0.2 cfs on many days in September, October 1954.

Remarks. Records good except those below 5 cfs and those for periods of no gage-height 

record, which are fair. Flow regulated by Liberty Reservoir beginning July 22, 1954 

(usable capacity, 42,072,000,000 gal). Diversion above station for municipal supply 

of Westminster (sewage effluent discharged into Little Pipe Creek) and from Liberty 

Reservoir beginning Feb. 26, 1953, for municipal supply of Baltimore.

Rating table, water year 1955-56 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1 to Jan. 30)

2.1 0.2

2.2 .7

2.3 1.7

2.4 3.4

2.5 5.9

2.6

2.7 

2.9 

3.2 

3.5 140

4.0 

5.0 

7.0 

9.0

11.0

293

650

1,470

2,660

4,180

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

HO

21 

22

23

24

25

26

27

28

29 

30

31

Total

Mean 

(t)

Oct.

0.6

.6

.6

.6

.6

.9

1.0

1.4

.9

*.6

.8

.8

.8

11

1.2

.7

.7

.7

.7

.7

.7 

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

33.6

1.08 

+203

Nov.

0.6

*.6

.7

.7

.7

.6

.7

.8

.7

.8

~7T 1.2

.7

~ '

*.

21.1

0.70 

+120

Dec.

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.JL

.6

.6

.6

.6

.7

.6

.7

.6

.7

.7

.7 

.7

.7

.7

.7

.6

.6

.6

.6

*.7

.7

20.8

0.67 

+93.3

Jan.

 0.7

.7

.7

.7

.7

.7

.8

.9

1.2

1.0

.9

.8

'.1

.8

3.6

T77

27.2

0.88 

+138

Feb.

1.2

478

2.2

*L7

1.6

91

574 5T&-

402

335

307

318

265

228

235

232

216

338

335

300

245

206

180

172

222

225

200

213

153

6,513.5

225

+112

Calendar year 1955: Max 27 Min 0.3

Mar.

*140

150

150

156

130

122

TST

203

200

180

191

210

213

670

lil

603

571

488

430

352

310 

314

321

363

282

265

262

248

251

265

245

9,164

296 

+8.9

Apr.

222

216

265

318

265

255

409

502

391

318

290

265

251

232

238

293

262

245

232

225

191 

200

210

5So" 180

206

200

194

194

210

7,679

256 

-0.4

May

166

174

*200

200

180

165

175

180

135

128

140

140

160

170

155

140

110

105

105

125

108 

100

125

140

105

92

lT5

210

TSo

115

120

4,443

143

+5.4

June

400 3TO~

305

225

160

125

*93

71

59

59

64

45

39

30

28

26

26

33

36

29

38 

64

77

132

104

68

49

35

25

15.

2,770

92.3 

+ 37.1

July

15 *15

12

82

430

328

210

145

177

191

118

77

52

59

34

33

31

24

16

191

4.100 

1,480

654

384

286

203

172

145

125

104

77

9,970

322

+54.6

Aug.

71

70

63

50

100

130

108

97

*75

66

52

41

36

42

39

33

30

23

22

31

111 

97

66

59

39

32

33

30

27

21

17.

1,711

55.2 

+50.1

Sept.

12

8.5

4.4

1.7

1.2

2.1

24

24

21

6.2

3.8

*5.3

7.6

9.4

13

24

30

31

12

39

8.4 

7.6

14

35

36

29

61

140

liT

87

809.2

27.0 

+59.9

Mean 0.78

Water year 1955-56: Max 4,100 Min 0.5 Mean 118

* Discharge measurement made on this day.

t Diversion for municipal supplies of Westminster and Baltimore and change in contents in Liberty 

Reservoir, equivalent in cubic feet per second; for calendar year 1955, +180 cfs; for water year 

1955-56, +73.5 cfs. Records of diversion and storage furnished by Maryland Water Works Co. and 

Baltimore Department of Public Works, respectively.

Note. No gage-height record May 4 to June 6, July 21; discharge estimated on basis of reconstructed gage-height graph, weather records, and records for nearby stations.
PATAPSCO RIVER BASIN

South Branch Patapseo River at Henryton, Md.

Location. Lat 39°21'05", long 76°54i50", on right bank at downstream side of bridge on 

State Highway 101 at Henryton, Carroll County, 1.3 miles upstream from Piney Run, 

2.3 miles upstream from confluence with North Branch, and 3.2 miles southeast of 

Sykesville.

Drainage area. 64.4 sq mi.

Records available. August 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 289.15 ft above mean 

sea level, datum of 1929.

Average discharge. 8 years, 78.0 cfs.

Extremes. Maximum discharge during year, 12,100 cfs July 21 (gage height, 19.40 ft), from 

rating curve extended above 1,900 cfs on basis of slope-area determination at gage 

height 7.88 ft and contracted-opening determinations at gage heights 10.12 and 19.40 ft; 

minimum, 9.8 cfs Jan. 8, result of freezeup.

1948-56: Maximum discharge, that of July 21, 1956; minimum, 5.3 cfs Jan. 28, 1955, 

result of freezeup.

Remarks. Records excellent except those for periods of ice effect, which are good.

Rating table, water year 1965-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.9 

2.1 

2.4 

2.6

20

51

130

220

3.0 

4.0

9.0

470

990

2,300

3,300

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

E

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

42

39

37

36

37

45

43

58

45

*40

39

37

37

483

151

94

79

71

66

60

58

55

53

53

53

51'

51

51

63

94

60

2,188

70.6

1.10

1.26

Nov.

53

*51

51

53

47

47

51

55

48

51

99

67

55

53

51

55

51

47

53

55

55

55

51

51

47

48

47

47

40

39_

1,569

52.3

0.812

0.91

Dec.

39

42

43

45

47

42

40

40

42

42

b36

b34

b34

b34

b38

b28

b35

37

37

b30

b33

b31

37

39

42

40

b31

b27

34

*36 

33

1,144

36.9

0.573

0.66

Jan.

33

33

36

37

36

36

36

b30

b3T

b92

b74

b68

55

47

43

42

42

39

b37

45

b39

b39

b37

b31

b31

b34

b30

b30

43

b250 

127

1,586

51.2

0.793

0.92

Feb.

81

294

226

190

170

317

24T

158

130

116

116

116

94

86

102

94

89

151

110

97

86

76

68

71

108

97

79

73

6£

3,705

128

1.99

2.14

Mar.

*66

71

66

63

60

60

63

118

86

71

84

86

99

428

190

190

180

150

134

127

127

124

122

116

108

105

97

94

99

97 

89

3,570

115

1.79

2.06

Apr.

84

84

110

102

84

89

166

158

110

102

97

92

89

84

89

113

94

86

81

79

76

73

73

79

76

76

73

71

68

66_

2,724

90.8

1.41

1.57

May

63

68

*79

71

63

63

66

63

58

58

58

58

58

53

51

51

48

51

48

48

47

47

48

45

*?_

43

65

58

47

45 

76

1,740

56.1

0.871

1.00

June

163

101

94

63

55

48

47

42

42

43

40

37

36

34

33

33

34

36

37

34

39

39

37

66

48

36

34

33

30

28_

1,442

48.1-

0.747

0.83

July

28

*27

27

37

81

104

47

40

90

60

36

33

33

33

28

27

27

27

27

328

*5,010

189

113

110

94

73

68

60

58

55 

51

5,021

162

2.52

2.90

Aug.

48

47

45

43

63

55

53

47

*43

40

39

37

37

39

39

36

34

34

33

36

76

45

39

36

33

33

31

31

30

28 

28

1,258

40.6

0.630

0.73

Sept.

27

27

ze

26

26

52

45

30

27

26

26

27

26

24

24

31

27

26

24

31

24

24

24

31

26

24

47

76

f5

34

928

30.9

0.480

0.54

Calendar year 1955 : Max 2,080 Mln 9.8 Mean 61.6 Cfsm 0.957 In. 12.99

Water year 1955-56 : Max 3,010 Mln 24 Mean 73.4 Cfsm 1.14 In. 15.52

Peak discharge (base. 1,200 efs).--July 21 (3:30 a.m.) 12,100 cfs (19.40 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
452 PATAPSCO RIVER BASIN

Plney Run near Sykesville, Md.

Location.--Lat 39°22'55", long 76°58'00", on left bank 75 ft downstream from highway bridge, 

It miles north of Sykesville, Carroll County, and 5? miles upstream from mouth.

Drainage area. 11.4 sq ml.

Records available. September 1931 to September 1956.

Gage. Staff gage, crest-stage Indicator, and concrete control. Gage read twice dally. 

Altitude of gage Is 450 ft (from topographic map). Prior to July 21, 1956, water-stage 

recorder at same site and datum.

Average discharge. 25 years, 12.9 cfs.

Extremes.--Maximum discharge during year, 7,380 cfs July 20 (gage height, 12.0 ft, from 

floodmarks), from rating curve extended above 1,200 cfs on basis of contracted-opening 

determination of peak flow; minimum, 3.7 cfs Dec. 28, Jan. 24, 27, 28, result of freezeup, but may have been less Jan. 8.

1931-56: Maximum discharge, that of July 20, 1956; minimum, 0.4 cfs Jan. 25, 1939; 

minimum dally, 1.2 cfs Sept. 17-21, 25, 26, 1932.

Remarks. Records good except those for periods of Ice effect and those subsequent to 

 July 27, which are fair, or those for period of no gage-height record, which are poor.

Revisions (water years). WSP 1171: 1933(M), 1944(M).

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.1

2.2

2.3 

2.5 

2.7

5.1

8.2

13

26

16

3.0 

3.5 

4.0 

5.0

85

190

340

740

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

7.4

6.8

6.8

6.5

6.5

8.6

8.2

11

8.2

*7.1

6.8

6.5

6.5

101

20

13

11

10

9.5

9.0

9.0

8.6

8.6

9.0

9.5

9.0

9.0

8.6

15

14

9 9

380.6

12.3

1.08

1.24

Nov.

8.6

8.2

9.0

*9.0

8.2

8.2

9.5

9.9

8.6

9.8

19

TT

9.9

9.5

9.5

10

9.0

8.6

9.5

10

10

9.9

9.5

9.0

8.6

8.6

8.6

8.2

7.4

7.1

281.9

9.40

0.825

0.92

Dec.

7.4

7.8

8.6

9.0

7.8

7.4

7.4

8.2

7.8

7.1

6.8

6.8

6.8

7.1

b5.6 675"

6.8

7.1

6.2

6.2

5.9

6.8

6.8

7.8

7.4

6.2

b5.6

6.2

*6.5

6.2

218.4

7.05

0.618

0.71

Jan.

5.9

5.9

6.5

6.8

6.8

6.8

6.5

b5.4 BT5

18

15

13

11

8.6

7.8

8.2

8.2

b7.4

7.8

8.2

b7.4

7.4

7.4

b6.4

6.8

6.5

5.6

6.2

8.2

5820"

310.2

10.0

0.877

1.01

Feb.

11

65

4O

*34

29

74

4T

24

22

20

22

21

17

15

2O

17

15

32

20

17

16

b!4

b!3

12

22

17

15

14

12

695

24.0

2.11

2.27

Mar.

*12

12

12

12

11

11

12

22

14

13

15

16

18

86

27

33

28

24

22

22

22

22

21

2O

17

17

16

15

17

16

15

620

20.0

1.75

2.02

Apr.

14

*14

21

18

15

17

34

26

18

16

15

15

14

14

15

19

14

14

13

12

11

11

11

12

12

12

11

11

10

9 9

448.9

15.0

1.32

1.46

May

9.5

11

*12

11

10

9.9

11

9.9

9.5

9.0

9.0

9.O

9.O

8.6

7.8

8.2

7.4

8.2

7.8

8.2

7.4

7.4

7.8

7.4

7.1

6.8

9.9

8.2

8.2

66_

336.2

10.8

0.947

1.10

June

23

2?

18

*11

9.5

8.6

8.2

7.4

7.4

7.8

7.1

6.5

6.2

6.2

5.9

5.9

5.9

6.2

6.8

6.2

7.1

15

8.6

15

7.4

6.5

6.2

5.9

5.6

5.4

268.5

8.95

O.785

0.88

July

5.4

*5.1 572-

10

18

15

9.0

8.0

20

10

7.0

6.4

7.0

6.0

5.6

5.4

5.4

5.4

5.2

*400

600

20

22

17

14

13

12

11

11

9.9

L, 319.0

42.5

3.73

4.30

Aug.

9.5

9.5

9.0

9.0

15

12

11

10

*9.5

8.6

8.2

7.8

7.4

7.4

7.4

7.1

6.8

6.8

6.2

6.5

14

8.6

7.8

7.1

6.8

6.5

6.2

5.9

5.6

5.6

5,4

254.2

8.20

0.719

0.83

Sept.

5.1 576"

5.6

5.6

5.4

18

T5

5.9

5.4

5.4

*5.4

5.4

5.1

5.1

5.4

6.2

5.6

5.4

5.1

5.6

5.4

5.4

5.4

6.2

5.6

5.4

10

13

8.6

6 . 8

203.1

6.77

0.594

0.66

Calendar year 1955 : Max 481 Mln 2.5 Mean 11.3 Cfsm 0.991 In. 13.52

Water yearl955-56 : Max 600 Mln 5.1 Mean 14.6 Cfsm 1.28 In. 17.40

Peak discharge (base, 44O efs). May 31 (10 p.m.) 481 cfs (4.39 ft)j July 2O (about 12 p.m.) 7,380 

cfs (12.0 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record July 3-27j discharge estimated on basis of floodmarks, weather records, 

and records for nearby stations.
PATAPSCO RIVER BASIN 453

Patapsoo River at Hollofield, Md.

Location.--Lat 39°18'36", long 76°47'39", on right bank at downstream side of highway

 bridge at Hollofield, Howard County, 0.3 mile downstream from Dogwood Run and 3.0 miles 

north of Ellioott City.

Drainage area. 285 sq mi.

Records available. May 1944 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 190 ft (from topographic map).

Extremes.--Maximum discharge during year, 19,000 cfs July 21 (gage height, 15.88 ft); mint

 mum, 44 cfs Jan. 8, Sept. 5, 6, but may have been leas during period of ice effect; 

minimum daily, 46 cfs Sept. 4, 5.

1944-56: Maximum discharge, that of July 21, 1956; minimum, 6 cfs Sept. 6, 1944 

(gage height, 0.83 ft); minimum daily, 18 cfs Sept. 14, 1954.

Flood in August 1933 reached a stage of 19.5 ft, from information by Maryland State 

Roads Commission.

Remarks. Records excellent except those for periods of ice effect or no gage-height

 ree"ord, which are fair. Plow regulated by Liberty Reservoir beginning July 22, 1954 

(usable capacity, 42,072,000,000 gal). Diversion above station for municipal supply 

of Westminster (sewage effluent discharged into Little Pipe Creek) and from Liberty 

Reservoir beginning Feb. 26, 1953, for municipal supply of Baltimore.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1-14, 

Mar. 15 to Sept. 30 Oct. 15 to Mar. 14

1.3 

1.5 

1.8 

2.3

141

346

3.0 

4.0 

6.0 

9.0

830 

1.S70 

4,700 

9,700

1.4 

1.7 

2.0

47

101

186

2.5 

3.0 

4.0

442

830

1,870

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Ibtal

Mean

(t)

Oct.

73

69

67

§5

65

83

85

126

100

*77

71

67

67

1.150 

342

156

125

111

101

95

90 

88

84

86

86

84

82

82

84

150

101

4,092

132

+203

Nov.

88

*86

88

95

86

82

88

101

88

90

170

rrr

99

95 

90

93

88

80

88

97

97 

99

93

90

84

*86

84

84

76

b75

2,771

92.4

+120

Dec.

b75

80

82

86

SI

78

76

76

78

80

71

b69

b69

b69 

b73

b54

b64

b64

67

b54

b56 

b58

66

67

73

73

b59

bST

66

b59

2,137

68.9

+93.3

Jan.

b58

b56

62

64

64

b64

b64

b52

bST

bl!3

b!39

b!20

99

82 

75

73

75

69

b62

b80

b71

b71

b71

b60

b59

b64

b60

b54

b73

b360 352"

2,820

91.0

+138

Feb.

b!23

533

468

302

291

*577

992

758

612

522

481

522

430

366 

378

395

356

565

522

462

395 

339

302

280

395

412

344

350

270

12,747

440

+112

Mar.

246

260

260

265

231

226

S5S

383

361

302

334

361

395

Hi

884

839

721

650

569

528 

528

528

535

463

434

428

405

411

434

399

15,030

485

+8.9

Apr.

357

*351

428

495

428

399

705

518" 788

502

457

434

405

378 

378

489

428

394

372

357

317 

317

326

297

32T

331

322

317

307

317

12,316

411

0.4

May

274

279

331

326

284

270

284

284

240

232

244

244

261

266 

248

236

204

204

200

219

200 

192

219

232

192

178

23T

312

248

207

219

7,561

244

+5.4

June

652

483

463

336

256

219

*189

158

138

138

144

118

104

97 

87

87

87

92

110

94

104 

141

171

266

236

148

124

102

83

69

5,496

183

+37.1

July

64

65

11

75

495

483

312

223

317

331

196

144

112

110 

94

77

81

77

65

94

a9,500 

a2,200

a920

562

476

357

292

a260

a230

a200

167

18,636

601

+54.6

Aug.

154

151

141

124

178

227

foT

181

*158

141

126

107

102

107 

107

97

90

81

75

77

223

185

141

124

100

87

85

81

77

71

64

3,869

125

+50.1

Sept.

6154'

54

I6~ 46

82

126

73

64

57

50

50

51

51 

53

67

73

79

57

79

64 

51

53

81

83

73

118

292

161

2,453

81.8

+59.9

Calendar year 1955 : Max 3,930 Min 20 Mean 110

Water year 1955-56 : Max 9,500 Mln 46 Mean 246

Peak discharge (base. 2,900 cfs).--July 21 (about 9 a.m.) 19,000 cfs (15.88 ft).

* Discharge measurement made on this day.

t Diversion for municipal supplies of Westminster and Baltimore and change In contents In Liberty 

Reservoir, equivalent In cubic feet per second; for calendar year 1955, +180 cfs; for water year 

1956, +73.5 cfs. Records of diversion and storage furnished by Maryland Water Works Co. and 

Baltimore Department of Public Works, respectively.

a No gage-height record; discharge estimated on basis of reconstructed gage-height graph, recorded 

range in stage, weather records, and records for nearby stations.

b Stage-discharge relation affected by ice.

505690 O - 59 - 30
454 SOUTH RIVER BASIN

North River near Annapolis, Md.

Location. Lab 38°59'09", long 76°37>21", on left bank 500 ft downstream from bridge on 

State Highway 450, 0.8 mile upstream from mouth, and 7 miles west of Annapolis, Anne 

Arundel County.

Drainage area.--8.5 sq ml, approximately.

Records available. December 1931 to September 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage Is 10 ft (from topographic map). Prior to Nov. 2, 1933, staff gage at same site and datum.

Average discharge.--24 years (1932-56), 11.0 cfs.

Extremes.--Maximum discharge during year, 163 cfs July 21 (gage height, 2.58 ft); minimum, 

2.3 cfs Aug. 20. i

1931-56: Maximum discharge, 5,000 cfs Aug. 2, 1944 (gage height, 6.22 ft), from 

rating curve extended above 260 cfs on basis of velocity-area studies; minimum, 1.5 cfs 

Sept. 1, 2, 4, 1932.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown In the following table. They supersede figures published In the water-supply 

papers Indicated.

WSP

726

741

756

781

801

821

851

871

951

Water 

year

1932

1933

1934

1935

1936

1937

1938

1939

1942

Date

May 13, 1932

Aug. 23, 1933

Sept. 8, 1934

Apr. 9, 1935

Jan. 3, 1936

Apr. 26, 1937

Nov. 13, 1937

June 14, 1939

Aug. 9, 1942

Discharge 

(cfs)

104

120

171

147

(tt)

342

329

120

329

Gage height 

(feet)

t2.35

t2.40

2.51

2.46

(tt)

2.78

2.76

2.40

2.76

t From graph based on gage readings. 

tt Unknown.

Remarks.--Records good except those for periods of Ice effect or backwater from unknown

cause, which are fair. 

Revisions. Revised figures of discharge, in cubic feet per second, for the water years

1932-38, superseding those published in WSP 726, 741, 756, 781, 801, 821, and 851,

are given herewith:

1931 

Dec. 15.

1933

Aug. 23. 

24.

1934 

Sept. 8. 106

50

1934-Con.

Sept.17...... .. 75

1935 

Apr. 8

1936 

Jan. 3.

104

43

1936-Con. 

Jan. 4. 36

1937 

Apr. 26........ 183

27........ 132

38........ 46

Aug. 27........ 118

Nov. 13........ 214

Month

December 1931 ...............

August 1933. ................

Calendar year 1933 ........

Calendar year 1934. .......

Calendar year 1935. .......

Calendar year 1936 ........

Water year 1936-37 ........

Water year 1937-38. .......

Cfs -days

-

-

-

_

_

_

615

4,372.3

675.0

4,773.6

718.3

4,687.8

5,429.4

4,325.4

Maximum

15

85 

85

85

106

106

106

104

104

104

110

110

110

183

118

183

214

£14

£14

Minimum

3.2

4.8 

2.0

4.8

4.0

4.0

4.0

11

4.7

4.7

8.0

4.9

4.9

9.2

4.9

4.9

8.7

4.9

4.4

Mean

*5.43

l£.l 

10.7

10.8

19.3

11.5

11.6

20.5

11.8

12.0

21.8

13.5

13.0

23.9

15.9

12.8

22.1

14.9

11.9

Per square

mile

0.639

1.42 

1.26

1.27

2.27

1.35

1.36

2.41

1.39

1.41

2.56

1.59

1.53

2.81

1.87

1.51

2.60

1.75

1.40

Runoff In 

Inches

0.74

1.64 

17.08

17.15

£.53

18.27

18.58

3.69

18.81

19.14

£.95

21.56

20.88

3.14

2.16

30.52

£.90

23.77

18.93

* Partly estimated.
SOUTH RIVER BASIN 455

North River near Annapolis, Md. Continued

Rating table, water year 1955-56, except periods of Ice effect or backwater from 

unknown cause (gage height, In feet, and discharge, In cubic feet per second)

1.0

1.1

1.2

1.3

2.4

4.6

8.2

12

1.5 

1.8 

2.1

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

*5.0

5.0

4.6

4.4

4.4

5.6

5.0

11

9.0

5.6

5.3

5.0

5.3

63

26

11

8.2

7.4

7.0

6.6

6.2

5.9

5.9

6.2

6.6

6.2

6.2

6.2

6.2

7.8

6.6

274.4

8.85

1.04

1.20

Nov.

6.2

^2

6.2

6.6

6.2

6.2

6.2

*6.9

6.2

7.0

16

9.0

T. 4

7.0

7.0

7.0

6.6

6.2

7.8

9.8

8.2

7.8

7.8

7.4

7.0

7.0

7.0

7.0

6.2

6 . 2

219.3

7.31

0.860

0.96

Dec.

6.2

7.0

7.8

7.4

7.0

6.6

6.2

6.6

7.0

7.4

6.2

b5.2

b5.2

b5.2

5.9

b4.4

4.6

5.6

5.9

b4.4

b3.9

b3.9

5.3

6.2

6.6

5.9

b4.3

b3.3

b4.0

5.3

4.6

175.1

5.65

0.665

0.77

Jan.

4.4

4.6

5.9

6.2

6.2

5.6

b5.3

b4.1

b4.6

12

15

15

10

7.8

7.0

7.0

7.0

6.2

6.2

6.6

b6.2

b5.9

b6.3

b5.2

b4.7

b5.5

*b4.8

5.0

7.4

13

11

221.7

7.15

0.841

0.97

Feb.

7.0

12

15

13

13

17

21

13

11

9.8

11

12

9.4

8.2

8.6

8.2

9.0

11

9.0

8.2

7.4

6.6

b5.6

b576

*12

11

8.2

7.8

7.0

297.6

10.3

1.21

1.30

Mar.

6.6

7.4

7.4

7.0

6.6

7.0

7.4

17

14

9.0

10

9.4

11

33

27

19

21

14

12

12

13

12

11

10

9.4

9.4

9.0

*7.8

8.2

8.6

7 . 8

364.0

11.7

1.38

1.59

Apr.

7.4

7.4

11

11

8.2

9.0

15

16

10

9.0

8.6

8.2

7.8

7.8

8.6

14

10

8.2

.8

.4

.0

.0

.0

.0

.4

.2'.4

.0

.6

.0

264.0

8.80

1.04

1.16

May

6.2

8.2

10

9.8

*9.4

7.8

7.4

6.6

6.2

6.2

6.2

6.2

6.2

5.6

5.3

5.3

5.0

5.6

5.0

5.3

5.0

5.0

7.0

5.6

4.6

4.6

9.3

9.0

5.6

5.3

5 . 6

200.1

6.45

0.759

0.88

June

5.9

21

16

7.8

6.2

5.9

*5.3

5.0

4.6

5.3

5.0

4.4

4.1

3.8

3.8

3.8

3.8

4.1

4.4

3.8

5.3

5.9

5.9

5.9

5.9

4.1

4.6

6.2

4.4

3 .6

175.8

5.86

0.689

0.77

July

3.3

3.3

3.1

3.6

15

*5.9

4.6

4.4

7.8

8.6

4.4

3.8

3.6

3.3

2.9

2.9

3.1

3.3

3.1

18

68

11

7.4

5.9

7.0

5.3

6.2

5.3

4.4

4.4

3.8

236.7

7.64

0.899

1.04

Aug.

3.8

3.8

3.8

3.6

4.4

4.6

4.4

3.8

3.3

3.3

2.9

2.9

2.9

*3.1

2.9

2.7

2.6

2.6

2.6

3.1

~6.6 17

4.1

3.6

3.1

3.1

3.8

3.3

3.1

3.1

2.9

120.8

3.90

0.459

0.53

Sept.

2.9

2.9

2.7

2.6

T^

3.1

3.8

3.3

2.7

2.6

2.7

2.7

2.7

2.7

2.9

C4.5

c4.0

*5.3

3.6

3.6

2.9

3.1

3.3

3.6

3.6

3.3

C9.4

11

6.6

5.3

116.0

3.87

0.455

0.51

Calendar year 1955: Max 304 Mln 1.9 Mean 8.12 Cfsm 0.955 In. 12.96

Water year 1955-56: Max 68 Mln, 2.6 Mean 7.28 Cfsm 0.856 In. 11.68

Peak discharge (base. 100 cfs).~July 21 (1:30 a.m.) 163 cfs (2.58 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

c Backwater from unknown cause.
456 PATUXENT RIVER BASIN

Patuxent River near Unity, Md.

Location. Lat 39°14'18", long 77°03'23", on right bank at downstream side of bridge on

State Highway 97, 0.6 mile upstream from Cattail Creek, 0.8 mile upstream from Triadelphia Reservoir, and 1.1 miles northeast of Unity, Montgomery Counby. 

Drainage area. 34.8 sq mi.

Records available. July 1944 to September 1956. 

Gage.--Water-stage recorder and concrete control. Datum of gage is 364.76 ft above mean

sea level (Washington Suburban Sanitary Commission benchmark). Prior to Aug. 14, 1946,

wire-weight gage and crest-stage indicator at same site and datum. 

Average discharge. 12 years, 40.3 cfs. 

Extremes.--Maximum discharge during year, 10,700 cfs July 21 (gage height, 14.35 ft), from

rating curve extended above 870 cfs on basis of slope-area determination at gage height

13.58 ft; minimum, 9.7 cfs Sept. 5.

1944-56: Maximum discharge, that of July 21, 1956; minimum, 2.1 cfs Aug. 25-28,

1944.

Revisions. The minimum discharge for the water year 1948 has been revised to

4.4 cfs Oct. 24, 1947 (gage height, 1.87 ft), superseding figure published in WSP 1111. 

Remarks. Records good except those for periods of ice effect, which are fair. 

Revisions (water years). WSP 1111: 1947. Revised figures of discharge, in cubic feet

per second, for the water year 1948, superseding those published in WSP 1111, are given

herewith:

Date

1947

Oct. 1

2

3

4

5

6

7

8

Discharge

6.2

6.2

6.2

5.8

5.8

5.8

5.8

5.8

Date

1947 -Con.

Oct. 9

10

11

12

13

14

15

16

Discharge

5.8

5.0

5.0

5.0

5.0

5.0

5.0

4.7

Date

1947-Con.

Oct. 17

18

19

20

21

22

23

24

Discharge

5.4

5.4

5.8

5.4

5.0

4.7

4.7

4.4

Month Cfs-days Maximum Minimum Mean

Water year 1947-48. ....... 13,199.1 380 4.4 36.1

Date

1947-Con.

Oct. 25

26

27

28

29

30

31

Discharge

4.7

5.0

5.0

9.7

16

8.4

7.4

Per square Runoff In 

mile Inches

.687 9.33

1.04 14.11

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.9

2.0 

2.2 

2.6 

3.0 

3.5

24

57

103

183

4.0 

5.0 

6.0 

7.0 

8.0

288

565

955

1,480

2,150

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

18

17

17

17

17

*21

21

30

22

19

18

17

17

»194

62

37

31

28

25

24

23

22

22

22

22

21

21

20

26

40

28

919

29.6

0.851

0.98

Nov.

*24

22

23

24

22

21

23

25

22

23

47

30

28

26

25

27

24

22

25

27

28

29

27

25

24

24

23

23

21

21

755

25.2

0.724

0.81

Dec.

20

22

24

24

22

21

20

21

22

21

19

bZO

bZO

*b20

20

b!9

b!7

18

b!8

b!7

b!5

b!5

18

18

20

19

b!7

b!7

16

17

16

593

19.1

0.549

0.63

Jan.

16

15

17

18

17

b!8

b!8

b!5

b!6

39

37

38

29

24

22

21

21

20

b!7

b!7

b!9

b!9

19

b!8

b20

b!7

b!6

b!6

23

b!06

772

24.9

0.716

0.83

Feb.

b37

153

114

84

82

165

*140

83

69

60

59

58

48

46

52

48

46

70

54

50

45

40

38

38

57

49

41

39

1,901

65.6

1.89

2.03

Mar.

34

«36

34

33

32.

32

34

67

47

40

44

43

49

282

106

102

91

77

70

66

65

63

61

59

53

52

50

48

50

*49

45

1,914

61.7

1.77

2.05

Apr.

42

42

49

46

41

42

80

76

54

49

46

44

42

40

42

54

43

40

39

38

36

35

35

36

36

38

35

34

1,301

43.3

1.24

1.39

May

30

34

39

35

31

30

32

30

28

28

28

28

27

25

23

24

23

24

22

22

21

21

22

20

20

20

31

30

22

21

21

812

26.2

0.750

0.87

June

*30

37

33

24

22

20

20

19

18

20

18

17

16

15

17

15

14

15

16

12

16

16

15

38

27

16

15

15

13

12.

582

19.4

0.555

0.62

July

12

12

11

53

65

39

24

19

30

22

*16

15

15

15

13

12

12

13

12

223

2.150

76

51

46

42

34

31.

28

28

26

24

3,169

102

2.93

3.39

Aug.

24

24

22

22

26

28

27

23

*20

18

18

17

17

18

17

16

15

14

13

15

34

20

17

16

15

14

14

13

12

12

12

573

18.5

0.532

0.61

Sept.

12

11

11

10

10

18

18

12

12

11

11

12

12

11

11

13

15

15

12

14

 12

12

12

16

13

12

33

38

22

18

439

14.6

0.420

0.47

Calendar year 1955: Max 1,270 Mln 3.0 Mean 30.4 Cfam 0.874 In. 11.85

Water year 1955-56: Max 2,150 Mln 10 Mean 37.5 Cfsm 1.08 In. 14.68

Peak discharge (base. 770 efsK July 21 (2 a.m.) 10,700 cfs (14.35 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
PATUXENT RIVER BASIN 457

Cattail Creek at Roxbury Mills, Md.

Location. Lat 39°15'17", long 77°02'43", on left bank 0.2 mile downstream from unnamed 

tributary from left bank and highway bridge, 0.5 mile southeast of Roxbury Mills, 

Howard County, and 1.3 miles upstream from mouth.

Drainage area. 27.7 sq mi.

Records available.--July 1944 to September 1956 (discontinued).

Gage. Water-stage recorder. Prior to Oct. 19, 1945, staff gage at same site and datum. 

Tltitude of gage is 370 ft (from topographic map).

Average discharge. 12 years, 28.6 cfs.

Extremes. Maximum discharge during year, 10,100 cfs July 21 (gage height, 14.19 ft), from 

rating curve extended above 350 cfs on basis of slope-area determination of peak flow; 

minimum, 7.2 cfs July 18.

1944-56: Maximum discharge, that of July 21, 1956; minimum, 2.9 cfs Aug. 26, 

Sept. 8, 1944 (gage height, 0.76 ft).

Remarks. Records good except those for periods of fragmentary or no gage-height record, 

which are fair, and those above 700 cfs, which are poor. Diurnal fluctuation at low 

flow caused by mill at Roxbury Mills.

Rating table, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

l.o 

1.2 

1.5 

2.0

5.9

12

28

65

3.0 

6.0 

9.0 

9.5

172

570

1,08O

1,350

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

13

13

12

13

13

*15

14

25

17

14

13

12

13

240

46

28

23

21

20

20

18

18

18

18

18

18

17 

17

24 

30

21

802

25.9

0.935

1.08

Nov.

*18

18

20

20

19

18

21

21

20

21

11

22

21

20

19

21

18

17

21

22

23

22

21

20

19

19

18 

18

17

17

6O8

20.3

0.733

0.82

Dec.

16

18

20

20

18

17

16

17

18

17

15

15

15

*15

15

14

13

14

14

13

11

TT

13

13

15

14

13 

13

12

13 

12

46O

14.8

0.534

0.62

Jan.

12

12

13

14

13

13

13

11

13

30

28

28

22

18

17

16

16

15

13

13

15

15

15

14

16

13

13 

13

17

55

35

551

17.8

0.643

0.74

Feb.

25

90

60

50

50

95

*80

46

39

36

37

37

31

29

36

32

31

55

35

30

28

26

25

25

45

35

30 

27

25

1,19O

41.0

1.48

1.60

Mar.

24

*25

24

23

22

22

23

52

31

26

31

29

37

2O3

58

66

60

47

43

41

41

37

36

34

31

31

29

29

32

*31

28

1,246

40.2

1.45

1.67

Apr.

26

27

33

31

27

29

66

49

34

31

29

28

27

26

28

40

30

28

27

25

25

25

25

26

25

26

25 

24

23

23

888

29.6

1.07

1.19

May

22

*24

27

2T

22

22

22

21

20

20

20

20

2O

18

18

18

17

18

18

18

17

17

18

17

16

16

23 

22

17

17

17

606

19.5

0.704

0.81

June

*17

26

23

18

16

15

14

13

14

14

13

13

12

12

12

12

11

12

13

11

13

13

13

24

24

12

13 

12

11

10

436

14.5

O.523

O.59

July

10

9.6

9.3

11

23

25

14

13

16

14

*11

9.3

9.3

9.3

8.4

8.4

8.4

f!T

112

«k250

39

29

28

26

21

18 

18

17

16

15

1,794.2

57.9

2.O9

2.41

Aug.

15

14

14

13

17

16

16

15

13

*13

11

11

11

12

12

11

11

11

10

11

26

13

12

11

10

10

10 

10

9.6

 S^T

9.3

387.2

12.5

0.451

0.52

Sept.

9.0

8.7

8.7

8.4

8.4

17

13

10

9.0

8.7

8.7

9.3

8.7

8.4

8.7

9.6

10

10

9.0

11

*8.7

9.3

9.6

12

10

9.3

if12

11

322.2

10.7

0.386

0.43

Calendar year 1955: Max 576 Min 3.2 Mean 21. O Cfsm 0.758 In. 1O.32

Water year 1955-56: Max 1,23O Min 8.1 Mean 25.4 Cfsm 0.917 In. 12.48

Peak discharge (base. 410 cfs). Oct. 14 (5:30 a.m.) 455 cfs (5.18 ft)j Mar. 14 (11:30 a.m.) 

441 cfs {5.08 ft); July 21 (2 a.m.) 10.10O cfs (14.19 ft).

* Discharge measurement made on this day.

Note. Fragmentary or no gage-height record Nov. 25 to Dec. 14, Dec. 16 to Feb. 7, and Feb. 19 to 

Mar. Ij discharge estimated on basis of recorded range In stage and recorded trace where available, 

weather records, and records for Patuxent River near Unity.
458 PATOXENT RIVER BASIN

Patuxent River near Laurel, Md.

Location. Lat 39°06'56", long 76°52'27", on right bank at Rocky Gorge pumping station, 

600 ft downstream from Rocky Gorge Dam, 0.7 mile upstream from Walker Branch, and 

1.3 miles northwest of Laurel, Prince Georges County. Prior to Oct. 1, 1955, at site 

0.3 mile downstream.

Drainage area. 132 sq ml.

Records available. October 1944 to September 1956.

Gage.--Staff gage read three times dally. Altitude of gage Is 160 ft (from topographic 

map). Prior to Oct. 1, 1955, water-stage recorder and concrete control at site 

0.3 mile downstream at different datum.

Extremes. Maximum discharge during year, 11,800 cfs July 21 (gage height, 18.9 ft, from 

floodmarks); minimum, 1.1 cfs several days during summer months; minimum dally, 1.1 cfs 

June 26.

1944-56: Maximum discharge, that of July 21, 1956; minimum, 0.3 cfs Aug. 11, 1954, 

and May 3, 1955; minimum dally, that of June 26, 1956.

Remarks. Records fair. Records do not Include diversion by pumps of part of low flow 

Into Anacostla River basin and at Patuxent (formerly Willls School) filtration plant 

for supply of Washington Suburban Sanitary District. Flow regulated by Triadelphia 

Reservoir [usable capacity, 6,582,000,000 gal), and since March 1954, by Rocky Gorge 

Reservoir (usable capacity, 5,920,000,000 gal).

Rating table, water year 1955-56 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used July 22 to Aug. 23)

-0.15 -.1

o.o

.2

1.5

1.1

1.8

3.7

8.2

14

23

48

90

2.0

4.0

6.0

8.0

10.0

12.0

14.0

144

420

830

1,420

2,250

3,500

5,600

Discharge, in cubic feet per second, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

54

54

54

54

*54

54

54

54

53

50

50

*50

50

115 ~98

90

90

111

93

101

101 

95

104

80

104

111

99

77

*55

54

54

2,317

74.7

+58.8

Nov.

70

55

54

54

56

55

55

56

56

56

56

56

55

55

55

54

*54

54

56

55

56 

56

57

57

56

57

57

57

46

II

1,632

54.4

+36.0

Dec.

16

15

*15

14

14

14

14

14

14

14

14

14

14

14

17

i§

16

15

15

15

16 

15

14

14

14

14

*13

14

14

14

14

452

14.6

+55.8

Jan.

14

14

14

14

14

14

14

14

14

14

14

14

14

«14

14

14

14

14

14

14

14 

14

14

14

14

14

14

14

14

14

14

434

14.0

+83.1

Feb.

14

96

167

198

216

481

*491

191

147

157

167

133

122

122

131

111

110

146

187

110

108 

*109

100

107

103

250

106

108

111

4,599

159

+69.8

Mar.

110

92

98 108"

107

104

102

107

106

104

103

102

106

716

212

184

244

371

215

133

107 

*142

143

232

91

90

137

92

107

110

114

4,789

154

+57. E

Apr.

109

101

112

99

113

101

*355

T95

109

109

102

106

106

108

102

102

102

107

109

107

*109 

111

110

111

109

111

111

111

111

23

_

3,521

117

+37.1

May

55

55

55

55

54

54

 54

54

54

54

54

54

54

27

!i

14

14

14

20

16

15 

14

14

14

14

14

14

14

14

14

14

980

31.6

+61.9

June

14

14

14

14

14

14

13

*14

14

14

14

14

14

14

14

14

14

14

14

7.0

5.9 

14

14

14

3.2

al.l

576

14

5.3

14 ------

363.1

12.1

+60.3

July

14

14

14

14

6.3

3.6

14

14

14

*14

14

14

14

14

14

14

19

28

16

14

«5.000 

475

313

81

89

100

92

64

74

83

85

6,738.9

217

+86.6

Aug.

86

90

44

10

10

10

10

10

10

10

10

10

10

7.5

no

10

10

10

10

10

2.5

ITT

2.5

7.5

12

12

2.9

4.7

14

14

14

477.7

15.4

+35.5

Sept.

14

14

14

14

14

14

14

14

14

14

14

12

14

*14

7.7

14

14

14

14

14

14 

14

14

14

14

14

50

85

95

52

637.7

21.3

+36.7

Calendar year 1955: Max 1,050 Min 9.5 Mean 35.8 t +71.1

Water year 1955-56: Max 5,000 Mln 1.1 Mean 73.6 t +56.7

* Discharge measurement made on this day.

t Diversion to Northwest Branch Anacostia River and at Patuxent (formerly Willis School) filtration plant for water supply of Washington Surburban Sanitary District, and change in contents In 

Triadelphia and Rocky Gorge Reservoirs, equivalent in cubic feet per second. Records furnished by 

Washington Suburban Sanitary Commission.

a No gage-height record; discharge estimated on basis of pumping-station records and 1 discharge 

measurement.
PATUXENT RIVER BASIN 

Little Patuxent River at Guilford, Md.

459

Location.--Lat 39°10'04", long 76°51'07", on left bank 75 ft upstream from bridge on State 

Highway 32, 1 mile west of Guilford, Howard County, 3 miles upstream from Middle 

Patuxent River, and 4 miles north of Laurel.

Drainage area. 38.0 sq mi.

Records available. May 1932 to September 1956.

Gage. Water-stage recorder. Concrete control since June 20, 1946. Altitude of gage is 

260 ft (from topographic map). Prior to June 25, 1946, staff gage at same site and 

datum.

Average discharge. 24 years, 40.9 cfs.

Extremes.--Maximum discharge during year, 1,010 cfs Oct. 14 (gage height, 8.37 ft); minimum, 7.0 cfs Jan. 8, result of freezeup.

1932-56: Maximum discharge, 5,300 cfs Sept. 1, 1952 (gage height, 13.26 ft), from 

rating curve extended above 1,800 cfs on basis of contracted-opening determination of 

peak flow; mini-num, 3.2 cfs Dec. 26, 1954, result of freezeup; minimum gage height, 

1.38 ft Sept. 29, 1941.

Remarks. Records excellent except those for periods of ice effect or doubtful gage-height 

record, which are fair.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.5

2.6 

2.8 

3.0 

3.5

6.6

11

24

43

121

4.0 

5.0 

6.0 

7.0 

8.0

211

391

571

751

932

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

19

18

17

17

17

20

19

69

31

33

20

*19

19

763

dTST

48

41

39

37

35

32

29

28

28

28

28

25

24

25

31

29

1,735

56.0

1.47

1.70

Nov.

25

25

26

28

24

24

26

28

25

27

47

33

29

28

28

29

26

24

28

31

33

34

30

28

27

27

25

b26

b22

22

83.5

27.8

0.732

0.82

Dec.

b22

24

27

27

25

23

23

23

24

24

b21

b20

b20

b20

22

b!8

b!8

20

21

b!8

b!7

17

20

20

23

21

b!7

b!5

b!7

19

17

643

20.7

0.545

0.63

Jan.

16

16

20

20

20

b!9

*b!8

b!3

b!6

40

38

42

35

28

24

24

24

b22

22

26

b24

b22

23

b21

b!9

19

17

18

25

161

b80

912

29.4

0.774

0.89

Feb.

b39

180

121

d82

d73

*176

189

64

48

43

42

43

40

38

40

39

38

d70

43

40

39

38

37

37

d52

d46

d36

d35

d34

1,802

62.1

1.63

1.76

Mar.

d33

d33

*d31

30

28

28

31

73

49

38

40

41

43

 436

TI4

118

d!05

d69

d54

d56

d58

d58

54

48

42

42

40

37

40

41

38

1,948

62.8

1.65

1.91

Apr.

35

36

44

46

37

38

86

80

46

40

38

37

36

35

36

56

39

37

36

34

33

33

32

32

33

34

33

31

30

28

1,191

39.7

1.04

1.17

May

28

30

38

33

*29

28

28

28

25

26

26

26

25

23

22

22

20

23

21

21

20

20

24

22

20

20

29

3O

23

21

25

776

25.0

0.658

0.76

June

24

48

37

27

23

23

21

19

18

19

*18

16

15

14

14

14

14

17

18

15

18

18

18

30

27

16

16

14

13 

13

597

19.9

0.524

0.58

July

12

12

11

13

33

«19

16

14

23

d!8

14

13

12

12

11

11

11

11

10

51

523

62

39

26

24

18

16

14

14

13

12

1,088

35.1

0.924

1.06

Aug.

12

11

11

11

14

14

13

16

11

10

9.2

8.7

9.2

*9.2

8.7

7.8

7.8

7.8

7.8

8.7

26

15

12

11

10

10

10

9.6

8.7

Q 1 8.7

337.6

10.9

0.287

33

Sept.

8.2

7.8

8.2

7.8

lii

14

21

11

9.6

9.2

8.7

9.2

8.7

«8.2

8.7

12

10

12

1O

13

11

10

11

13

12

10

2O

29

T6 

13

349.7

11.7

0.3O8

O.34

Calendar year 1955: Max 1,920 Min 3.5 Mean 35.8 Cfsm 0.942 In. 12.80

Water year 1955-56: Max 763 Min 7.4 Mean 33.4 Cfsm O.879 In. 11.95

Peak discharge (base. 600 efs). Oct. 14 (3 p.m.) 1,010 cfs (8.37 ft); Mar. 14 (4 p.m.) 713 cfs 

(6.79 ft); July 21 (3:30 p.m.) 864 cfs (7.63 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of partly reconstructed gage-height 

graph, weather records, and records for nearby stations.
460 PATUXENT RIVER BASIN

Little Patuxent River at Savage, Md.

Location.--Lat 39°08'00", long 76°48'58", on left bank 400 ft downstream from bridge on 

U. S. Highway 1, half a mile southeast of Savage, Howard County, and 1 mile downstream 

from Middle Patuxent River.

Drainage area. 98.4 sq mi.

Records available. November 1939 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 125 ft (from topographic map).

Average discharge.--16 years (1940-56), 101 cfs.

Extremes. Maximum discharge during year, 3,130 cfs July 81 (gage height, 9.14 ft); minimum, 19 cfs Aug. 31.

1939-56: Maximum discharge, 6,880 cfs Sept. 1, 1952 (gage height, 13.15 ft); minimum daily, 7.0 cfs Sept. 19, 1943.

Maximum stage known, about 17.5 ft in August 1933, from information by local 

residents.

Remarks.--Records excellent except those for periods of ice effect, backwater from unknown 

cause, no gage-height record, and shifting control, which are fair. Occasional regulation from unknown source above station.

Rating table, water year 1955-56, except periods of shifting control, Ice 

effect, and backwater from unknown cause (gage height, In feet, and 

discharge, In cubic feet per second)

1.7 

1.9 

2.1 

2.3

2.6 

3.0 

4.0 

6.0

157

300

805

1,930

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

50

45

c44

c44

 44

52

50

211

87

59

52

*48

48

1.800

396

130

105

93

86

82

c78

73

71

73

73

71

*69

67

69

93

36

4,349

140

1.42

1.64

Nov.

69

67

73

80

67

66

67

82

69

71

 1468~6~

78

76

71

76

*69

59

69

80

82

91

76

71

64

62

61

59

b52

2,191

73.0

0.742

0.83

Dec.

b52

58

*62

62

59

55

54

54

55

55

bSO

b47

b47

b47

b52

b42

b42

b5O

b54

bSO

b40

b40

b54

b56

b60

b56

b45

b38

b45

b52

b45

1,578

50.9

0.517

0.60

Jan.

b40

b4O

b52

b58

b58

b54

*b45

b50" b35

b!20

bllO

112

86

 73

62

59

58

55

b54

b64

b60

b56

b60

b54

b50

b52

b47

b50

67

585

£96

2,460

79.4

0.8O7

0.93

Feb.

b96

433

*365

216

234

464

506

172

135

120

112

133

105

91

105

108

98

167

128

105

93

*86

84

82

125

130

98

93

82

4,766

164

1.67

1.80

Calendar year 1955: Max 4,09O Mln 11

Mar.

78

84

80

76

li

73

76

146

130

93

98

108

115

*976

301

252

282

188

166

160

172

 169

146

130

118

118

115

110

115

122

 110

4,978

161

1.64

1.88

Apr.

100

100

120

125

108

103

207

235

141

120

112

110

105

100

105

163

1ZO

105

100

96

*89

89

89

86

91

91

91

86

80

78 -L2.

3,345

112

1.14

1.26

May

75

75

105

89

78

75

*75

73

69

69

69

69

67

64

59

61

58

61

 59

59

58

58

62

61

55

55

71

84

59

56

66

2,094

67.5

0.686

0.79

June

61

98

1086"9~

59

55

55

48

48

51

*50

45

42

41

40

40

38

42

47

41

45

47

45

71

78

47

43

41

36

li

1,565

52.2

0.530

0.59

July

33

32

31

34

96

56

50

42

54

*62

41

35

34

34

30

30

30

30

30

84

1.650 'l81

138

80

75

58

50

46

43

42

a37

3,268

105

1.07

1.24

Aug.

a36

a35

34

33

a40

44

42

43

34

31

29

28

28

28

*28

27

25

24

24

26

69

46

34

30

28

26

26

25

24

24

994

32.1

0.326

0.38

Sept.

23

22

23

22

22

34

73

34

27

*26

26

26

27

26

26

33

30

33

27

33

29

26

27

33

33

27

44

~~55 100

41

1,008

33.6

0.341

0.38

Mean 89.6 Cfam 0.911 In. 12.37

Water year 1955-56: Max 1,800 Mln 22 Mean 89.1 Cfsm 0.905 In. 12.32

Peak discharge (base. 1.500 cfs). Oct. 14 (7 a.m.) 2,830 cfs (9.06 ft); Mar. 14 (2:30 p.m.) 1,910 

cfs (6.96 ft); July 21 (11:5O a.m.) 3,130 cfs (9.14 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of fragmentary gage-height record when 

available, weather records, and records for station at Gullford and other nearby stations.

b Stage-discharge relation affected by Ice.

c Backwater from unknown cause.

Note. Shifting-control method used Oct. 1 to Feb. 21, Feb. 25-27, Mar. 8-18, Apr. 7, 8, July 2O-22.
PATUXENT RIVER BASIN 461

Dorsey Run near Jessup, Md.

Location. Lat 398 07'15", long 76 8 47'00", on left bank at downstream side of bridge on 

State Highway 32 (formerly State Highway 647), 0.6 mile southeast of Fort George 

G. Meade Junction (formerly Annapolis Junction), 1.0 mile upstream from mouth, and 

2 miles south of Jessup, Anne Arundel County.

Drainage area. 11.6 sq ml.

Records available. July 1948 to September 1956. Prior to October 1951, published as "at 

Annapolis Junction."

Gage.--Water-stage recorder and concrete control. Altitude of gage Is 120 ft (from topographic map).

Average discharge. 8 years, 14.5 cfs.

Extremes. Maximum discharge during year, 374 cfs Mar. 14 (gage height, 5.70 ft); minimum, 

1.1 cfs Jan. 9.

1948-56: Maximum discharge, 1,400 cfs Aug. 13, 1955 (gage height, 12.77 ft), from 

rating curve exterided above 390 cfs on basis of contracted-opening determination at 

gage height 11.99 ft; minimum, that of Jan. 9, 1956.

Remarks. Records good except those for periods of Ice effect or doubtful gage-height 

record, which are fair.

Revisions (water years). WSP 1141: 1948(M).

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.39

1.4

1.5

1.6

1.8

1.9 

4.2 

8.4

1.7 

2.0 

3.0 

4.0

128

234

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

5.5

5.1

5.1

4.5

4.5

6.4

5.5

24

7.9

5.5

4.8

*4.2

4.2

208 

32

16

12

11

9.4

7.9

7.4

6.9

6.9

6.9

6.9

6.4

6.4

6.4

7.9

15

8.9

469.5

15.1

1.30

1.51

Nov.

7.4

6.9

6.9

*7.9

6.4

6.4

6.9

7.9

6.9

9.6

d!8

*d9.4

8.4

7.9 

7.4

7.9

*6.9

5.9

7.9

9.4

11

9.4

8.4

6.9

6.4

6.4

5.9

6.4

5.5

5.1

233.7

7.79

0.672

0.75

Dec.

5.1

5.9

*6.4

6.4

5.9

5.5

5.1

5.1

5.9

5.9

5.1

4.8

4.8

4.8 

5.1

4.8

4.5

4.8

5.1

4.5

3.9

3.9

4.8

5.1

5.5

5.5

*4.5

3.6

379

5.1

4.2

155.5

5.02

0.433

0.50

Jan.

3.9

3.9

4.8

5.1

5.1

4.8

4.5

b3.6

b3.9

14

16

19

12

*9.4 

8.4

7.4

7.4

6.9

6.9

7.9

6.9

6.4

6.9

5.9

5.1

5.5

b4.5

b4.5

8.9

H

281.5

9.08

0.783

0.90

Feb.

12

d53

d37

d38

d31

*d78

d58

d21

d!6

d!4

d!4

d!5

d!4

d!4 

d!4

d!4

d!3

d25

d!5

d!4

d!3

d!3

d!3

d!2

d!6

d!5

d!2

d!2

d!2

628

21.7

1.87

2.01

Mar.

d!2

d!2

*dlO

8.9

879

9.4

10

53

20

14

14

14

18

185 

43

d55

d35

d24

d20

d21

d22

d22

20

17

15

15

14

12

14

14

*11

763.2

24.6

2.12

2.45

Apr.

11

11

16

15

11

13

d45

d3T die

d!4

d!3

d!2

dll

dlO 

dll

d!7

d!2

dll

d9.4

d8.9

*8.4

8.4

7.9

7.4

7.9

8.9 7.9"

7.4

6.4

g o"

375.8

12.5

1.08

1.20

May

6.4

9.4

12

10

7.9

7.4

*7.4

6.4

5.9

5.5

5.1

5.1

5.1

3.1 

3.9

4.2

d4.5

d4.8

d4.5

4.5

3.9

4.2

6.4

5.1

4.2

3.9

13

10

5.5

4.8

15

199.9

6.45

0.556

0.64

June

12

31

Ts

9.4

6.4

5.5

5.1

4.8

4.2

4.8

4.5

3.9

3.9

3.4 

3.2

3.2

3.2

3.9

3.9

3.6

5.1

4.8

3.9

6.4

6.4

4.2

4.5

3.6

3.2

2.9

182.9

6.10

0.526

0.59

July

2.9

2.9

2.7

3.6

17

5.5

4.8

4.2

14

*8.4

4.2

3.9

3.4

3.2 

2.5

2.9

2.7

2.7

2.7

34

41

10

12

6.9

5.9

4.5

4.2

3.4

3.2

3 z'.i2

225. 2

7.26

0.626

0.72

Aug.

2.7

2.7

2.7

2.5

2.9

3.4

2.9

3.2

2.5

2.1

1.9

1.8

ITT

*1.9 

2.1

2.3

2.3

1.9

1.9

3.9

15

6.9

4.8

3.4

2.9

2.5

2.9

2.7

2.5

2.7

2 ' 5

98.5

3.18

0.274

0.32

Sept.

2.3

1.9

2.1

2.5

2.3

9.6

5.9

3.2

2.5

2.7

2.7

2.7

2.5

*2.7 

2.9

3.2

3.4

3.4

2.7

3.9

2.7

2.7

2.9

4.2

2.9

2.7

17

T2

5.9

4.2

122.3

4.08

0.352

0.39

Calendar year 1955: Max 708 Mln 1.6 Mean 12.6 Cfsm 1.09 In. 14.79

Water year 1955-56: Max 208 Min 1.8 Mean 10.2 Cfsm 0.879 In. 11.98

Peak discharge (base. 300 efs).--0et. 14 (8 a.m.) 333 cfs (5.12 ft); Mat-. 14 (2 p.m.) 374 cfs 

(5.70 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record} discharge computed from reconstructed gage-height graph based on 

recorder trace, weather records, and records for nearby stations.
462 PATUXENT RIVER BASIN

Western Branch near Largo, Md.

Location. Lat 38°52'34", long 76°47'54", on right bank 85 ft upstream from bridge on 

State Highway 202, 200 ft downstream from small tributary, 0.1 mile upstream from 

Southwest Branch, 2.3 miles southeast of Largo, Prince Georges County, and 4.8 miles 

northwest of Upper Marlboro.

Drainage area. 30.2 sq mi.

Records available. November 1949 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage is 46.50 ft above mean 

sea level (levels by private consultant engineers).

Average discharge. 6 years (1950-56), 31.3 cfs.

Extremes. Maximum discharge during year, 587 cfs Oct. 14 (gage height, 6.29 ft); minimum, 

1.4 cfs Dec. 27 (gage height, 1.25 ft), result of freezeup.

1949-56: Maximum discharge, 1,580 cfs Aug. 13, 1955 (gage height, 8.51 ft, from 

high-water mark in well); minimum, 1.0 cfs probably July 23, 24, 1955 (gage height, 

1.19 ft, from recorded range in stage).

Remarks. Records good except those for periods of ice effect, which are fair.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.7

1.1

1.8 

3.0 

5.7 

9.9

1.8 

2.0 

3.0 

4.0 

5.0 

6.0

190

296

382

521

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

*5.7

5.4

5.4 

5.0

4.7

5.4

5.4

15

13

9.4

12

8.0

7.2

404

270

90

44

29

22

19

16

14

13

13

13

12

12

12

12

16

1,130.6

36.5

1.21

1.39

Nov.

13

13

13 

12

12

11

11

*12

11

12

34

23

21

19

16

16

15

13

*16

22

19

18

16

16

15

14

14

13

12

11

463

15.4

0.510

0.57

Dec.

11

12

14 

14

13

12

12

12

12

13

11

9.9

8.9

8.4

*10

b8.0

8.4

8.9

9.9

b7.0

7.6

7.6

8.4

9.4

12

12

b6.8

b6. 4

678

8.0

8.0

308.4

9.95

0.329

0.38

Jan.

7.2

6.8

B.O 

9.9

9.9

9.4

b8.0

b6.0

7.6

21

37

45

45

34

26

22

19

16

16

16

14

13

15

bll

blO

11

9.4

9.9

14

35

49

561.1

18.1

0.599

0.69

Feb.

48

42

70 

83

76

*114

160

102

58

43

40

42

38

33

30

26

27

31

29

28

25

21

19

18

*32

31

30

26

22

1,344

46.3

1.53

1.66

Mar.

19

19

19 

18

!§

16

16

47

78

58

42

36

42

201

229

126

118

86

64

57

54

49

44

38

33

31

28

*25

23

24

22

1,678

54.1

1.79

2.07

Apr.

20

20

25 

28

25

28

54

84

64

41

32

27

24

22

22

37

33

29

26

23

20

19

19

18

19

21

19

19

18

16

852

28.4

0.940

1.05

May

14

16

22 

21

*27

30

24

20

16

15

14

14

13

12

9.9

8.9

8.0

9.4

8.4

8.0

7.2

7.2

8.4

7.6

6.8

6.4

10

15

9.4

8*4

8.0

405. 0

13.1

0.434

0.5O

June

7.2

31

II

14

*10

8.4

7.2

6.0

6.4

6.0

5.0

4.4

3.6

3.4

3.4

3.9

3.4

3.4

5.0

4.2

5.7

6.0

8.4

14

5.7

16

20

8.9

6.0

276.6

9.22

0.305

0.34

July

4.4

3.6

3.2 

3.4

*126

94

35

25

29

29

16

12

8.9

7.6

6.0

5.4

5.0

5.7

5.0

29

89

43

53

27

20

14

97

34

17

12

868.1

28.0

0.927

1.07

Aug.

7.2

6.4

6.4 

5.4

5.7

6.4

6.4

6.0

5.0

4.2

3.4

3.0

3.0

3.0

*2.9

2.8

2.6

2.5

2.2

2.8

~8.9 20

6.0

4.7

3.6

3.2

3.9

3.6

3.0

2.8

149.6

4.83

0.160

0.18

Sept.

2.2

2.1

2.0 

1.9

2.0

2.1

2.6

2.3

1.9

1.8

1.8

1.9

2.0

1.7

TT9

2.5

3.2

*4.2

2.6

2.5

2.2

2.1

2.2

2.2

2.3

2.1

19

23

14

10

124.3

4.14

0.137

0.15

Calendar year 1955: Max 1,260 Mln 1.1 Mean 25.7 Cfsm 0.851 In. 11.55

Water year 1955-56: Max 4O4 Mln 1.7 Mean 22.3 Cfsra O.738 In. 10.05

Peak discharge (base. 5OO efs). Oct. 14 (10:3O a.m.) 587 cfs (6.29 ft); Mar. 14 (3 p.m.) 330 cfs 

(4.43 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
POTOMAC RIVER BASIN 463

Gage 

1

North Branch Potomac River at Kitzmiller, Md.

Location. Lat 39°23'38", long 79°10'55", on left "bank 0.6 mile downstream from bridge on 

State Highway 38 in Kitzmiller, Garrett County, and 1.5 miles downstream from Wolfden 

Run. Prior to Nov. 21, 1955, at site half a mile upstream.

Drainage area. 225 sq mi.

Records available. October 1949 to September 1956.

. Water-stage recorder. Datum of gage is 1,572.26 ft above mean sea level, datum of 

929, Parkersburg-Uniontown supplementary adjustment of 1944. Prior to Oct. 15, 1954, 

water-stage recorder at site 0.3 mile upstream at datum 7.58 ft higher. Oct. 15, 1954, 

to Nov. 20, 1955, wire-weight gage at bridge half a mile upstream at datum 21.51 ft 

higher.

Ave rage di s charge . - - 7 years, 454 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 8,310 cfs Aug. 6 (gage height, 9.02 ft); minimum, 

22 cfs Oct. 2 (gage height, 1.43 ft).

1949-56: Maximum discharge, 33.400 cfs Oct. 15, 1954 (gage height, 13.73 ft, from 

f loodmarks , present site and datum); minimum, 4.6 cfs Oct. 3-7, 1953.

Remarks . --Records fair. Regulation at low flow by Stony River Reservoir, 30 miles above 

station (capacity, 1,533,000,000 gal at crest of spillway, and 1,800,000,000 gal with 

2 ft of flashboards) .

Rating tables, water year 1955-55, except periods of ice effect 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 20 Nov. 21 to Sept. 30

1.4

1.8 

2.1 

2.5 

3.2

46

74

125

308 4.5

119 

£47 

428 

680

5.0 

5.0 

7.0 

8.0

1,010

1,990

3,430

5,500

Discharge, In cubic feet per second, water year October 1955 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

15

17

18 

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

(t)

Oct.

24

23

25

28

36

34

44

38

33

30

28

25

27

52

11

51

44

46 

45

68

59

49

44

36

44

48

40

35

35

38 

40

1,253

40.4

_

_

-1.4

Nov.

38

33

36

37

35

34

34

34

31

33

90

112

196

134

148

280

276

174 

153

143

134

179

250

514

282

214

170

160

95

105

4,154

138

_

_

-5.2

Dec.

112

125

380

400

*327

241

180

190

160

110

88

84

80

66

76

58

56

84 

88

66

52

50

66

80

400

215

120

76

120

*175 

130

4,455

144

-

_

+1.2

Jan.

100

104

118

110

96

86

90

80

74

90

94

100

92

88

86

86

86

84 

84

84

82

82

82

70

70

74

78

82

205

4.500 

1,950

8,907

287

-

-

-0.6

Feb.

860

3,6OO

*4,000

1,800

2,600

2,200

2,600

1,550

1,450

1,350

1,300

1,200

980

740

1,350

1,450

1,300

4.400 

2,800

*1,550

1,070

780

600

520

1,400

1,530

961

1,170

880

47,991

1,655

-

_

+6.1

Mar.

740

734

728

680

600

*560

660

1,300

954

764

658

710

614

2.250

1,950

1,300

1,120

980 

840

700

580

560

600

1,050

900

840

1,000

1,140

*1,900

1,850

1,220

30,482

983

-

_

+9.2

Apr.

980

900

1,350

1,160

840

1,000

5.050

2,050

1,500

1,200

*900

660

560

500

450

420

400

390 

370

430

380

360

350

340

360

370

360

320

290

270

22,490

750

_

+4.1

May

240

270

700

480

400

340

1,350

926

664

560

520

880

1,060

680

560

*600

540

940 

660

540

460

400

1,000

760

490

420

3,000

5.790

1,770

1,240

1,050

27,290

880

_

+17.2

Juns

1,200

1,200

2.100

al,250

a880

a620

a520

a400

a330

a280

a240

a205

a!90

580

520

250

260

410 

600

350

280

300

250

220

*420

340

380

300

240

180

15,295

510

_

-2.1

July

140

120

*100

88

200

280

250

160

225

225

145

110

92

*135

149

98

115

95 

92

140

93

78

82

152

200

119

492

317

1.340

524 

286

6,642

214

_

+0.7

Calendar year 1955: Max 13,200 Mln 20 Mean 423 Cfsm 1.88 In. 25.51

Aug.

203

200

*184

145

3,120

5.100

»1,760

954

592

428

331

269

226

253

229

171

142

121 

125

692

1,720

692

395

296

232

203

184

195

320

226 

163

19,871

641

_

0

t -1

Sept.

130

130

120

100

85

145

235

123

93

79

151

195

119

100

97

154

145

195 

117

98

*87

76

106

127

127

106

117

260

189

145

3,951

132

_

-8.9

5

Water year 1955-55: Max 5,100 Mln 23 Mean 527 Cfsm 2.34 In. 31.86 t +1.7

Peak discharge (base. 5.400 cfs).--Jan. 30 (about 3:30 p.m.) about 7,360 cfs (8.7 ft); Feb. i 

(about 8 p.m.) about 7^800 cfs (8^85 ft); Feb. 18 (about 1:30 p.m.) about 7,500 cfs (8.75 ft); 

Mar. 14 (about 7 p.m.) about 4.810 cfs (7.7 ft): Apr. 7 (3:30 a.m.) 3,670 cfs (7.13 ft); May 27 

(9:30 p.m.) 6,970 cfs (8.56 ft); Aug. 6 (4 a.m.) 8,310 cfs (9.02 ft).

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second, In Stony River Reservoir. Records fur 

nlshed by West Virginia Pulp and Paper Co.

a No gage-height record; discharge estimated on basis of records for stations at Luke and Savage 

River below Savage River Dam.

Note. Stage-discharge relation affected by Ice Nov. 27 to Dec. 4, Dec. 7 to Jan. 30, Feb. 1, 2, 

22-25, 29, Mar. 1.
POTOMAC RIVEH BASIN

Savage River near Barton, Md.

Location. Lat 39°34'05", long 79°06'10", on right bank 0.9 mile upstream from Bear Pen 

Run, 1.5 miles downstream from Poplar Lick Run, and 5.4 miles northwest of Barton, 

Allegany County.

Drainage area. 49.1 sq ml.

Records available. September 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 1,605 ft (from 

topographic map).

Average discharge. 8 years, 77.7 cfs.

Extremes. Maximum discharge during year, 1,920 cfs Aug. 6 (gage height, 4.49 ft); minimum, 4.1 cfs Oct. 13, Nov. 6-10, but may have been less during period of Ice effect. 

1948-56: Maximum discharge, 7,510 cfs Oct. 15, 1954 (gage height, 8.45 ft), from 

rating curve extended above 1,600 cfs on basis of slope-area determination of peak 

flow; minimum, 0.6 cfs Sept. 2, 1953.

Remarks. Records good except those for periods of Ice effect or no gage-height record, 

which are poor. City of Frostburg diverts about 0.5 cfs from headwaters of stream for 

municipal supply.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.2

1.3

1.4 

1.6 

1.9

2.2 

2.6 

3.0 

3.8

174

345

575

1,210

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

7.7

6.6

5.7

5.2

5.2

6.6

7.2

6.2

5.7

4.8

4.8

4 BJ4

4.8

15

12

8.2

7.2

6.6

6.6

7.2

6.2

5.7

5.2

4.8

4.8

4.8

4.8

4.4

4.4 

4.8 5 2

192.8

6.22

0.127

0.15

Nov.

4.8

4.4

4.4

4.4

4.4

4.1

4.1

4.1

4.1

4.4

5.2

8.2

13

11

12

23

36

29

24

20

18

20

23

35

32

27

21

18

11 

17

446.6

14.9

0.303

0.34

Dec.

14

12

17

26

21

24

22

*25

20

16

14

13

12

13

13

11

10

11

11

10

9.0

8.0

8.5

9.5

10

9.0

8.0

*7.0

7.5

7.5

7.0

412.0

13.3

0.271

0.31

Jan.

7.0

7.0

8.0

9.0

9.5

9.5

8.0

7.O

6.5

6.7

7.5

8.4

7.5

6.8

6.2

6.4

6.8

*7.0

6.8

7.0

6.7

6.4

5.8

5.2

577

6.2

6.0

5.8

15

360

320

891.4

28.8

0.587

0.68

Feb.

190

420

612

310

242

276

360

310

345

360

345

320

230

171

250

*330

282

728

603

370

246

165

130

110

233

272

222

264

218

8,914

307

6.25

6.75

Mar.

*174

148

120

100

86

80

123

222

226

181

145

125

104

248

412

310

222

171

131

110

108

117

125

196

192

196

206

218

282

400

295

5,773

186

3.79

4.37

Apr.

206

199

315

310

234

223

722

596

360

242

181

139

109

90

80

76

63

59

56

56

49

48

56

56

64

72

78

76

70 

70

4,955

165

3.36

3.75

May

*59

87

230

203

155

125

234

206

164

136

114

112

104

97

90

100

90

120

122

109

92

82

117

107

97

88

407

645

350 

242

188

5,072

164

3.34

3.84

June

168

171

375

305

206

148

109

86

68

56

42

34

104

254

102

66

49

52

68

48

71

76

64

61

92

90

185

134

90 

64

3,438

115

2.34

2.60

July

46

38

29

28

23

35

22

16

15

14

13

10

9.4

9.4

8.8

_8.2

974

10

8.8

14

11

14

9.4

22

18

12

107

54 

35

24

725.4

23.4

0.477

0.55

Aug.

*19

18

16

13

246

1.160

422

238

142

102

7O

51

40

36

32

24

19

16

19

94

254

161

97

66

48

38

32

30

24 

20

18

3,585

116

2.36

2.72

Sept.

15

15

12

11

10

£2.

56

29

20

16

15

15

14

11

12

22

18

14

11

11

10

8.8

8.2

11

8.2

7.7

7.7

10

8.8 8 2

477.6

15.9

0.324

0.36

Calendar year 1955: Max 1,140 Mln 2.6 Mean 72.2 Cfsm 1.47 In. 19.95

Water year 1955-56: Max 1,180 Mln 4.1 Mean 95.3 Cfsm 1.94 In. 26.42

Peak discharge (base. 800 cfs). Fe

(3.62 ft); Apr. 7 (6 p.m.) 846 cfs (3

b. 3 (12:30 a.m.) 87o cfs (3.4O ft); Feb. 18 (3 p.m.) 1,05O cfs 

.. .37 ft); May 27 (11:30 p.m.) 846 cfs (3.37 ft); Aug. 6 (4:30

a.m.) 1,920 cfs (4.49 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 27 to Dec. 1, Dec. 7, 8, Dec. 11 to Feb. 2, 

Feb. 22-24, Mar. 20, 21 (no gage-hel^it record Jan. 9-24; discharge estimated on basis of weather 

records and records for nearby stations).
POTOMAC RIVER BASIN 465

Crabtree Creek near Swanton, Md.

Location.--Lat 39°30'00", long 79°09'35", on left bank 0.9 mile upstream from Middle Fork, 

1.0 mile downstream from Springlick Run, and 5.0 miles northeast of Swanton, Garrett 

County.

Drainage area. 16.7 sq mi.

Records available. September 1948 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage is 1,529.06 ft above mean 

sea level (Corps of Engineers benchmark).

Average discharge. 8 years, 30.9 cfs.

Extremes.--Maximum discharge during year, about 651 cfs Aug. 5 (gage height, 3.12 ft, from 

reconstructed gage-height graph), from rating curve extended above 330 cfs on basis of 

slope-area determination at gage height 4.90 ft; minimum, 1.7 cfs Jan. 24, result of 

freezeup.

1948-56: Maximum discharge, 3,260 cfs July 12, 1949 (gage height, 5.01 ft), from 

rating curve extended above 210 cfs on basis of slope-area and contracted-opening 

determinations of peak flow; minimum, 0.1 cfs Dec. 3, 1953 (gage height, 0.56 ft); 

minimum daily, 0.8 cfs Nov. 6, 1953.

Remarks. Records good except those for periods of ice effect, which are fair, and those 

for periods of doubtful or no gage-height record, which are poor. Small diversion 

above station by Baltimore & Ohio Railroad.

Rating table, water year 1955-56, except periods of lee effect ( 

height, In feet, and discharge, In cubic feet per second) 

(Shifting-control method used July 5-9))

1.0

1.1

1.2

2.2 

3.8 

6.2 

9.6

14

1.4 

1.7

2.3 

2.6

137

233

362

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

3.1

2.9

2.8

2.8

2.9

3.4

3.2

2.9

2.8

2.6

2.5

2.5

2.8

5^5

3.4

3.1

3.1

2.9

2.9

3.2

2.8

2.6

2.6

2.6

2.6

2.6

2.5

2.5

'y~a 2.4 

c . o 

2.8

90.1

2.91

0.174

0.20

Nov.

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

3.1

4.4

4.4

3.8

4.2

8.5

12

8.8

8.5

7.1

6.8

8.5

10

15

12

11

8.8

8.1

6.0

7.1

183.1

6.10

0.365

0.41

Dec.

5.6

5.9

9.2

10

11

11

11

10

*9.2

7.4

6.5

5.9

5.4

b6.4

b6.2

b4.9

b4.4

a5.0

b5.0

b4.5

b4.0

a3.6

a3.8

a4.4

b4.8

b4.0

b3.6

b3.2

b3.6

b4.0

a . 5

187.0

6.03

0.361

0.42

Jan.

d3.5

a3.5

a4.4

a4.6

a4.8

a4.5

a3.6

a3.2

a3.O

a3.1

a3.4

a3.8

a3.4

a3.1

a2.8

a2.9

a3.1

a3.2

a3.1

3.2

3.2

*3.1

b2.9

b2.5

b2TT

2.8

*2.8

2.6

b6. 2

b!40

*123

362.0

11.7

0.701

0.81

Feb.

69

d!80

d210

118

106

115

135

111

113

118

113

106

93

79

91

*98

89

d235

d!80

113

79

59

46

39

S3

109

87

83

69

3,126

108

6.47

6.96

Mar.

61

56

46

39

36

34

38

62

71

64

54

47

39

81

127

104

79

61

48

40

38

40

46

69

71

69

71

77

95

120

95

1,978

63.8

3.82

4.40

Apr.

69

66

87

87

*75

d84

d250

d!60

102

77

61

48

38

33

29

28

23

22

19

19

18

18

19

18

19

20

21

22

22 

21

1,575

52.5

3.14

3.51

May

*19

27

46

48

43

38

43

37

36

35

32

36

41

41

38

43

44

51

51

44

37

32

34

28

26

25

dl!8

d200

d!04 

71

53

1,521

49.1

2.94

3.39

June

47

46

85

79

61

47

36

30

25

21

18

15

19

30

21

17

16

19

17

14

16

14

12

13

18

16

29

28

23 

19

851

28.4

1.70

1.90

July

16

13

11

9.2

8.8

9.2

6.8

5.1

7.8

6.5

5.9

5.1

4.8

5.1

4.4

4.6

5.1

4.4

9.9

9.2

6.2

4.6

4.6

28

22

17

*23

19

17 

14

11

318.3

10.3

0.617

0.71

Aug.

10

10

8.5

7.1

d!40

d320

d!06

61

39

34

24

19

16

16

16

12

10

9.2

11

38

89

62

40

29

22

17

14

14

13

11

9.2

1,227.0

39.6

2.37

2.73

Sept.

8.8

8.5

7.4

6.5

5.9

9.5

7.4

5.6

5.1

4.6

7.7

9.6

6.2

5.4

5.9

"9.2 10

9.2

8.5

8.8

7.1

6.8

6.5

7.8

5.9

5.1

6.5

9.2

7.8 

7.4

219.9

7.33

0.439

0.49

Calendar year 1955: Max 404 Mln 2.2 Mean 27.0 Cfsm 1.62 In. 21.97

Water year 1955-56: Max 320 Mln 2.4 Mean 31.8 Cfsm 1.90 In. 25.93

Peak discharge (base, 350 efs).--Feb. 18 (about 2 p.m.) about 357 cfs (2.59 ft); Aug. 5 (about 

11 p.m.) about 651 cfs (3.12 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of engineers' notes, weather records, and 

records for nearby stations.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed from partly reconstructed gage-height graph.
466 POTOMAC RIVER BASIN

Savage River below Savage River Dam, near Blooming_ton, Md.

Location. Lat 39°30'05", long 79°07 I 25", on left bank 0.7 mile downstream from Savage 

River Dam, 1.1 miles downstream from Crabtree Creek, and 3.2 miles northwest of Bloomington, Garrett County.

Drainage area. 106 sq mi.

Records available . October 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 1,276.40 ft above mean 

sea level (Corps of Engineers benchmark).

Average discharge. 8 years, 173 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 3,640 cfs Aug. 6 (gage height, 5.97 ft); minimum, 2.3 cfs Nov. 14 (gage height, 0.72 ft); minimum daily, 6.4 cfs May 1.

1948-56: Maximum discharge, 6,530 cfs Oct. 16, 1954 (gage height, 7.70 ft); minimum, 

0.5 cfs July 31, Aug. 1, 1951; minimum daily, 0.6 cfs July 27-31, Aug. 5, 6, 9, 10, 1951.

Remarks. Records good. Diversions above station by Baltimore & Ohio Railroad and by 

cities of Frostburg and Westernport for municipal supply. Flow regulated by Savage 

River Reservoir beginning December 1950 (capacity, 20,000 acre-ftj.

Revisions.--Revised figures of discharge, in cubic feet per second, for period in the 

water year 1955, superseding those published in WSP 1382, are given herewith:

1955 

Sept.20......... 100

Month

September 1955. ....... .. .

Water year 1954-55. ......

Cfs-days Maximum

3,790

Minimum

39

12

Mean

231

Per square 

mile

2.18

Runoff in 

inches

29.59

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

0.9 

1.0 

1.2

1.5

5.7

8.9

20

3.0 

3.5

4.0

5.0 

6.0

383

635

1,000

2,180

2.0 125 3,690

2.5 227 

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tbtal

Mean

Cfsm

In

(t)

Calei

Oct.

88

88

88

86

88

88

88

86

86

86

86

86

86

86

85

85

85

85

85

85

84

84

84

64

84

84

84

84

64

62

TB

2,642

85.2

_

_

-64.5

Nov.

66

66

66

66

66

66

66

66

66

66

66

46

22

10

TT

11

11

11

11

11

ll

ll

11

ll

ll

ll

ll

ll

ll

ll

982

32.7

_

-1.4

Dec .

11

11

11

20

38

*52

60

60

60

90

110

TTo

110

110

108

108

106

106

106

106

106

105

105

105

105

103

103

103

103

103 

45

2,579

83.2

_

_

-48.4

Jan.

10

10

10

30

43

43

43

43

43

23

10

10

10

10

10

10

10

10

16

10

10

10

10

26

37

57

*S7

37

38

69

1_,000

1,715

55.5

+8.6

Feb.

853

105

699

1,080

1,040

992

968

394

379

570

570

570

570

558

185

42

677

£42

29

1,020

1,520

1,410

634

48

52

111

411

587

581

17,297

596

_

_

-2.4

Mar.

575

507

232

106

106

106

108

113

433

605

593

368

108

113

375

617

605

599

299

111

113

113

113

113

115

116

120

122

125

429 

694

8,852

286

_

_

+81.7

Apr.

680

316

123

125

*66

18

99

393

1 , 060

1,050

357

57

16

16

16

15

15

15

14

14

14

14

14

14

14

13

10

13

13

6.7

4,612.7

154

_

_

+146

May

6.4

14

16

246

290

237

356

353

296

264

225

203

267

261

222

235

208

253

267

245

205

179

196

*163

161

154

531

1,530

694

443 

328

8,868.4

286

_

_

+24.4

June

281

264

548

526

372

275

213

169

139

118

96

79

98

309

167

116

98

129

192

139

136

150

148

138

179

199

335

273

188

139

6,215

207

_

_

-1.4

July

108

98

85

70

67

68

67

66

53

23

17

35

70

80

67

62

62

62

75

40

30

71

80

38

11

21

54

34

102

100 

70

1,889

60.9

_

_

-0.6

Aug.

55

51

42

34

296

2,590

798

396

243

192

138

108

68

84

84

66

50

66

66

124

652

770

318

125

125

125

125

125

125

125

125

8,111

262

-

,

-34.8

Sept.

125

125

125

125

125

125

62

90

127

127

139

125

125

125

125

125

125

125

125

125

125

123

123

123

123

123

123

122

122

122

3,649

122

_

_

-74.1

idar year 1955: Max 1,690 Min 10 Mean 171 Cfsm 1.61 In. 21.96

Water year 1955-E6: Max 2,390 Min 6.4 Mean 184 Cfsm 1.74 In. 23.65

* Discharge measurement made on this day.

t Change in contents in Savage River Reservoir, equivalent in cubic feet per second; for calendar 

?ar 1955, -11.2 cfs; for water year 1956, +2.7 cfs. Records furnished by Corps of Engineers.
POTOMAC RIVER BASIN 

North Branch Potomac River at Luke, Md.

467

Location.--Lab 39°28'45", long 79°03'55", on right bank 0.2 mile downstream from Savage

River and 0.5 mile northwest of Luke, Garrett County.

Drainage area. 404 sq mi. At site used prior to 1949, 405 sq mi (revised). 

Records available. June 1899 to July 1906 (published as "at Piedmont, W. Va."), October

1949 to September 1956. 

Gage. Water-stage recorder and concrete control. Datum of gage is 946.25 ft above mean

sea level, adjustment of 1912. June 27, 1899, to July 15, 1906, chain gage at bridge

1.1 miles (revised) downstream at datum about 35 ft lower. 

Average discharge. 13 years (1899-1905, 1949-56), 699 cfs (adjusted for storage since

1949).

Extremes. Maximum discharge during year, 15,800 cfs Aug. 6 (gage height, 11.48 ft); minimum, 97 cfs Jan. 24, but may have been less during period of ice effect.

1899-1906, 1949-56: Maximum discharge, 39,400 cfs Oct. 15, 1954 (gage height, 17.15

ft); minimum daily, 6 cfs Sept. 4, 1904. 

Remarks. Records good except those for periods of ice effect or doubtful gage-height

record, which are fair. Flow regulated since 1913 by Stony River Reservoir, 45 miles

above station (see p. 463) and, since December 1950, by Savage River Reservoir, 5 miles

above station (see preceding page). Some regulation at low flow by West Virginia Pulp

and Paper Co. at site used 1899-1906. 

Revisions.--WSP 192: 1899-1903 calendar years. Revised figures of discharge for the

water years 1905-6, superseding those published In WSP 167, 192, and 203, are given

herewith:

Date

1905

Feb. 1

2

3

4

5

6

7

8

9

Discharge

105

1OO

95

95

90

90

90

90

90

Date

1905 -Con,

Feb. 10

11

12

13

14

15

16

17

Discharge

85

85

85

85

85

85

85

85

Month

March. .........................

Date

1905 -Con,

Feb. 18

19

20

21

22

23

24

25

Maximum

5,710

Discharge

80

80

80

80

90

200

150

135

Minimum

224

Date

1905-Con

Feb. 26

27

28

Mar. 1

2

3

4

5

Mean

1,166

Discharge

130

125

120

115

115

110

110

230

Date

1905 Con,

Mar. 6

7

Apr. 27

28

1906

Feb. 28

Mar. 1

Per square 

mile

2.88

Discharge

500

1,OOO

660

742

224

283

Runoff In 

Inches

20.45

.58

3.32

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In

(t)

Oct.

119 

117

115

114

114

119

122

128

126

121

115

112

112

126

165

149

135

130

128

128

151

139

126

119

119

135

133

124

119

117

112

3,887

125

-

-

-66.0

Nov.

104 

103

101

101

101

101

ISO" 100

*100

104

107

141

206

169

145

249

320

235

171

169

157

185

239

544

369

260

206

blSO

b!35

b!40

5,342

178

-

-

-6.6

Dec.

b!45 

b!55

b330

458

437

337

264

 264

b240

b215

b210

b205

b!95

b!85

b!95

b!75

b!70

200

b205

178

b!65

b!60

blSO

192

b480

b390

b240

b!90

b!75

1)250

b!85

7,370

238

-

-

- '=7.2

Jan.

b!20 

b!24

143

149

149

137

143

b!25

b!20

bl!5

bl!4

119

112

b!06

b!04

b!04

104

101

114

109

104

 101

100

b!04

bl!6

b!20

b!25

b!20

b!30

b4.100

3,260

10,792

348

-

-

+8.2

Feb.

bl,950 

3,060

»4.950

3,110

3,510

3,400

4,040

2,360

2,150

2,300

2,160

2,170

1,800

1,550

1,690

1,790

2,060

4,650

2,890

*2,750

2,800

2,380

bl,400

b640

bl,550

1,950

1,590

*1,900

1)1,650

70,200

2,421

-

-

+3.6

Mar.

bl,400 

bl,350

1,O8O

836

729

680

764

1,470

1,540

1,520

1,380

1,220

854

d2,440

*5.050

2,330

1,950

1,780

1,320

*986

860

860

*881

1,420

1,220

1,160

1,360

1,550

2,300

2,510

2 130

44,910

1,449

-

-

+90.9

Apr.

1,800 

1,410

1,600

1,520

1,160

1,130

4,100

3,040

2,870

2,550

*1,590

1,050

824

685

610

571

544

530

504

580

522

490

481

468

490

508

486

433

393

371

33,312

1,110

-

-

+150

May

330 

369

836

860

806

696

1,710

1,470

1,060

895

836

981

1,550

1,060

854

923

824

1,ZOO

1,050

854

718

625

1,100

 1,100

758

641

3,080

6,770

2,930

2,020

1,600

40,506

1,307

-

-

+41.5

June

1,580 

1,520

2.820

dl,950

dl,450

dl,120

d880

d7OO

d560

d490

d410

d350

d320

826

674

433

358

562

830

600

481

512

441

385

570

625

788

658

468

348

23,709

790

-

-

-3.4

July

270 

233

200

169

239

323

369

260

*239

295

178

149

155

163

239

161

157

157

153

195

133

145

145

180

257

167

406

481

1.270

782

433

8,703

281

-

-

+0.07

Aug.

306

270

257

198

3,050

10 . 500

3,140

1,540

972

718

540

421

354

354

369

270

212

195

185

553

2,680

1,660

873

494

413

354

323

334

417

397

306

32,455

1,047

-

-

-34.8

Sept.

264 

260

257

227

212

218

306

221

221

*200

209

377

270

224

215

254

295

316

274

227

215

200

212

239

260

233

236

389

165

295

7,691

256

-

-

-83.0

Calendar year 1955: Max 18,40O Mln 92 Mean 7O1 Cfsm 1.74 In. 23.57 t -12.7

Water year 1955-56: Max 10,300 Mln 100 Mean 789 Cfsm 1.95 In. 26.59 t +4.4

ange n conens, equvaen n cuc ee per second, In Stony River and Savage River Reseroirs. Records furnished by West Virginia Pulp and Paper Co. and Corps of Engineers, respectively. 

b Stage-discharge relation affected by Ice.

- -

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed from recon 

ppearance of recorder graph, recorded change In stage when In 

tation at Pinto.

structed gage-height graph based on 

takes were flushed, and records for
468 POTOMAC RIVER BASIN

Georges Creek at Franklin, Md.

Location.--Lat 39°29'38", long 79°02'42", on right bank at Franklin, Allegany County, 

li; miles upstream from Westernport and mouth.

Drainage area.--72.4 sq mi.

Records available . May 1905 to July 1906 (published as "at Westernport"), October 1929 to 

September 1956.

Gage. Water-stage recorder. Datum of gage is 958.96 ft above mean sea level (West Virginia Pulp & Paper Co. benchmark). May 4, 1905, to July 15, 1906, chain gage at 

bridge three-quarters of a mile downstream at different datum. Oct. 16, 1929, to 

Oct. 1..1937, water-stage recorder at site 95 ft downstream at same datum.

Average discharge. 27 years (1929-56), 76.8 cfs.

Extremes. Maximum discharge during year, 1,350 cfs Aug. 6 (gage height, 6.59 ft); minimum, 3.9 cfs Jan. 15, 24, result of freezeup.

1905-6, 1929-56: Maximum discharge, 8,500 cfs Mar. 17, 1936 (gage height, 9.6 ft, 

site then in use), from rating curve extended above 2,000 cfs on basis of slope-area 

determination of peak flow; minimum, 1.6 cfs Oct. 2, 4-8, 1930.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Records include about 0.5 cfs of sewage from city of Frostburg, which 

obtains its water supply from Big Piney Run (Monongahela River basin) and Savage River. 

A negligible discharge diverted above station by Frostburg Water Co. for municipal supplies of Eckhart and Welch Hill. Records include drainage from numerous active and 

abandoned coal mines.

Revisions. WSP 726: Drainage area.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

3.1

3.2

3.3 

3.5 

3.7

5.9

10

16

32

56

4.0 

4.5 

5.0 

5.5

116

265

475

720

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Ttatal

Mean

Cfsm

In.

Oct.

13

12

11

alo

810

al2 13

11

10

89.4

89.2

88.8

alO

821

al4

all

alO

9.8

10

12

10

9.3

8.8

8.3

8.3

8.3

8.3

8.3

8.3

3,8

3.8

322.7

10.4

0.144

0.17

Nov.

8.8

8.3

8.8

8.3

8.3

8.3

8.3

8.8

8.3

8.3

 12

17

17

14

14

19

20

15

14

14

13

16

16

20

17

16

15

13

9.8 

11

387.3

12.9

0.178

0.20

Dec.

10

 10

15

16

16

14

12

13

13

10

9.8

9.3

8.8

9.3

9.3

8.3

7.9

8.8

8.8

 8.3

87.8

87.4

87.8

88.6

89. 0

88.0

87.4

87.0

a7.4 

87.4

87 ' 2

300.6

9.70

0.134

0.15

Jan.

47.2

87.0

88.0

 as. 6

89.0

a9.O

7.9

b6.2

b6. 4

6.7

7.9

9.8

8.3

b7.2

b6.8

7.9

7.9

7.5

7.5

7.9

7.5

7.5

b7.0

b6.2

b7.0

7.5

7.1

b7.0

b!4 

b300

Tso

675.5

21.8

O.3O1

0.35

Feb.

*77

b340

368

194

 182

283

305

248

269

289

308

289

215

179

227

234

234

615

484

361

262

206

164

139

266

237

194

227

173

7,569

261

3.60

3.89

Mar.

150

 142

124

111

98

93

134

179

145

126

119

116

111

327

32T

277

237

212

182

162

153

162

 176

227

197

212

206

209

281

297

251

5,737

185

2.56

2.95

Apr.

221

221

244

230

200

270

720

545

403

305

244

206

170

148

137

126

114

100

95

85

73

68

75

73

73

73

68

63

61 

zzE. 59

5,470

182

2.51

2.81

May

53

96

159

121

107

98

173

132

 109

104

98

119

111

95

89

116

98

119

93

85

83

75

100

77

61

55

205

240

164

142

3,536

114

1.57

1.82

June

»145

150

224

170

150

132

111

93

87

73

59

48

66

73

59

47

44

75

76

51

82

68

52

47

63

57

132

81

56 

46

2,617

87.2

1.20

1.34

July

40

36

36

41

32

52

32

28

 30

27

24

21

21

21

18

17

20

18

16

22

21

23

19

41

28

19

68

32

31 

22

17

873

28.2

0.390

0.45

Aug.

15

18

17

14

251

663

 227

153

102

81

56

47

41

42

35

29

26

22

22

76

142

64

44

35

28

26

25

57

87 

46

63

2,554

82.4

1.14

1.31

Sept.

54

36

29

26

26

65

52

32

28

 24

24

24

21

18

27

42

28

24

20

21

18

17

16

16

li

14

18

25

18

15

792

26.4

0.365

0.41

Calendar year 1955: Max 1,40O Mln 7.0 Mean 87.5 Cfsm 1.21 In. 16.42

water year 1955-56 : Max 720 Mln 6.2 Mean 84.2 Cfsm 1.16 In. 15.85

Peak discharge (base. 1.2OO cfs). Aug. 6 (2:3O a.m'.) 1,350 cfs (6.59 ft). 

» Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range In stage where available, 

weather records, and records for nearby stations, 

b Stage-discharge relation affected by Ice.
POTOMAC RIVER BASIN 469

New Creek near Keyser, W. Va.

Location. Lat 39°24'35", long 79°00'05", on right bank at highway bridge, 0.2 mile downstream from Block Run, 1.5 miles south of Keyser, Mineral County, and 3.0 miles upstream from mouth.

Drainage area. 45.7 sq mi.

Records available. April 1930 to September 1931, July 1947 to September 1956.

Gage.--Water-stage recorder. Altitude of gage is 870 ft (from topographic map). Prior to 

 ^Tept. 30, 1931, staff gage at site 0.1 mile upstream at different datum. July 21, 1947, 

to July 18, 1948, staff gage at present site and datum.

Average discharge. 10 years, 44.2 cfs.

Extremes. Maximum discharge during year, 685 cfs Apr. 6 (gage height, 3.42 ft); minimum 

daily, 4.0 cfs Jan. 25-28; minimum gage height, 0.58 ft Aug. 1.

1930-31, 1947-56: Maximum discharge, 3,110 cfs Aug. 18, 1955 (gage height, 7.40 ft), 

from rating curve extended above 810 cfs on basis of slope-area determination at gage 

height 6.37 ft; minimum observed, 0.5 cfs Aug. 16, 1947 (gage height, 0.54 ft).

Remarks.--Records good except those for period of ice effect, which are poor.

Rating table, water year 1955-56, except period of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

0.58 

.70 

.90

1.1

1.5

2.0 

2.5

3.0

3.1

195

340

520

560

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.0

6.0

5.7

5.4

5.7

6.5

6.8 

6.0

5.7

5.2

4.9

4.9

5.2

8.9

6.5

5.7

*5.2

4.9

4.9

4.9

^L

4.7

4.7

4.7

4.9

5.2

5.2

5.2

5.2

5.2

5.4

170.1

5.49

0.120

0.14

Nov.

5.4

5.2

5.4

5.2

5.2

4.9

5.2 

5.2

4.9

7.8

7.1

9.4

8.0

6.5

6.5

10

*7.3

6.0

6.5

6.8

7.3

8.0

8.0

7.3

6.8

6.5

6.5

6.5

6.8

6.8

199.0

6.63

0.145

0.16

Dec.

7.1

6.8

7.1

8.0

7.3

6.8

8.9

6.5

7.3

8.0

6.8

6.8

5.2

5.0

4.5

4.5

4.5

5.0

*5.0

5.0

4.5

4.5

4.5

5.0

8.0

10

8.0

7.0

6.0

6.0

6.0

195.6

6.31

0.138

0.16

Jan.

6.0

6.0

6.0

6.0

6.0

5.5

5.0 

4.5

4.5

4.5

5.0

6.0

6.0

6.0

6.0

6.0

5.5

5.0

5.0

5.0

5.0

5.0

*4.5

4.5

4_.Q

4.0

4.0

4.0

10

150

107

411.5

13.3

0.291

0.33

Feb.

85

199

200

125

132

208

262 

168

160

151

158

153

*111

92

92

85

99

358

253

158

109

82

66

57

100

90

72

83

65

3,973

137

3.00

3.23

Mar.

60

60

53

46

41

40

49 

62

50

46

45

*51

53

357

321

213

153

125

107

99

119

137

139

160

132

125

107

109

165

170

139

3,533

114

2.49

2.88

Apr.

107

101

113

99

87

178

560 

327

200

151

117

98

82

71

66

*62

53

50

44

40

35

33

34

35

35

33

32

30

29

29

2,931

97.7

2.14

2.39

May

28

31

41

35

32

31

50 

44

41

41

40

48

48

 43

38

38

36

45

34

30

28

26

35

29

25

 96 23

~96 172

71

53

1,428

46.1

1.01

1.16

June

56

53

62

48

42

37

32 

28

26

23

18

*16

16

16

16

15

18

22

34

20

18

16

14

13

14

27

26

16

12

U

765

25.5

0.558

0.62

July

9.8

8.9

8.5

8.5

12

17

TT 

8.9

*9.4

7.6

7.1

6.2

6.2

6.2

5.7

5.4

5.7

5.7

13

10

7.6

6.2

6.0

7.6

8.5

6.0

9.9

6.8

6.0

5.7

4.9

248.0

8.00

0.175

0.20

Aug.

"574 4.8

6.0

5.2

34

196

53 

2S

18

13

11

8.5

7.6

*8.0

7.3

6.5

5.7

5.4

5.2

33

69

29

18

14

11

8.9

8.0

7.6

7.6

6.8

6.5

648.0

20.9

0.457

0.53

Sept.

6.2

12

8.0

6.8

6.2

8.9

7.6 

6.0

5.4

4.9

14

24

IT

7.3

9.8

14

11

15

11

8.5

7.3

6.8

6.2

6.0

5.7

*5.4

10

16

11

8.9

280.9

9.36

0.205

0.23

Calendar year 1955: Max 2,060 Mln 3.3 Mean 49.7 Cfsm 1.09 In. 14.75

Water .ter year year 1955-56: I3bb-b6: Max Max 560 Obu Mln Mln 4.0 4.0 Mean Mean 40.4 4O.4 Cfsm Cfsm 0.884 u.ee« In. in. 12.03 1Z.O3

Peak discharge (base. 400 efs).--Peb. 6 (7 p.m.) 420 cfs (2.74 ft); Feb. 18 (1 p.m.) 435 cfs

!.78 ftj; Mar. 14 (6 p.m.) 560 cfs (3.11 ft/; Apr. 6 (11:30 p.m.) 685 cfs (3.42 ft); Aug. 6 (2 a.m.)

.0 ofs f2.71 ft).

(2. ._

410 cfs"'(2.7TftK

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 14 to Jan. 30.

505690 O - 59 - 31
470 POTOMAC RIVER BASIN

North Branch Potomac River at Pinto, Md.

Location (revised). Lat 39°33'59", long 78°50'25", on right bank at downstream side of 

Western Maryland Railway bridge at Pinto, Allegany County, 2.8 miles downstream from 

Mill Run.

Drainage area. 596 sq mi.

Records available. October 1938 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 648.23 ft above mean sea level (Corps of 

Engineers benchmark). Prior to Dec. 10, 1938, wire-weight gage at highway bridge 

250 ft downstream at same datum.

Average discharge. 18 years, 876 cfs (unadjusted).

Extremes. Maximum discharge during year, 16,200 cfs Aug. 6 (gage height, 14.86 ft); minimum, 89 cfs Jan. 25 (gage height, 1.62 ft), result of freezeup.

1938-56: Maximum discharge 37,000 cfs Oct. 16, 1954 (gage height, 23.23 ft); minimum, 31 cfs Dec. 18, 19, 1943 (gage height, 1.37 ft), result of freezeup.

Flood of Mar. 29, 1924, reached a stage of about 24 ft (discharge, about 55,000 cfs). 

Flood of Mar. 17. 1936, reached a stage of about 23.5 ft, from floodmarks (discharge, 

about 50,000 cfs).

Remarks.--Records good except those for periods of ice effect or doubtful or no gageheight record, which-are fair. Some regulation at low flow by Stony River Reservoir, 

66 miles above station (see p. 463) and since December 1950, by Savage River Reservoir 

(see p. 466).

Revisions (water years ) . WSP 1332: 1943.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.8 

2.0 

2.5 

3.0

116

166

349

603

4.0

6.0 

12.0

1,250

3,170

11,400

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6 

7

a

9

10

11

IE

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsra

In.

(t)

Oct.

d!50

d!45

d!40

d!35

dl50

d!50 

148

145

148

145

138

133

130

145

161

180

163

153

145

145

145

163

153

143

135

135

153

148

140

138

135

4,517

146

_

-66.0

Nov.

128

121

121

118

116

116 

116

116

116

116

*130

a!70

a215

a260

a200

a220

a350

a300

a250

a21o

a200

a21o

a250

a350

aSOO

a350

a280

a230

a200

a!60

6,219

207

_

_

-6.6

Dec.

a!70

161

191

508

498

*383 

318

271

275

245

241

231

227

211

238

b215

b205

b200

231

205

b!80

b!75

192

205

312

540

3iT

b250

b210

249

288

8,169

264

_

_

-47.2

Jan.

b!75

b!50

161

*180

186

180 

178

b!65

145

143

143

156

156

140

b!30

135

140

133

133

140

138

135

133

121

126

143

148

140

158

d3,000

d4j200

11,511

371

_

+8.2

Feb.

*d2,750

d2,500

6.750

d4,000

*d3,950

d4,250 

5,460

d3,350

d2,800

d3,050

d2,900

d3,050

d2,550

d2,150

d2,050

d2,550

d2,350

d5,700

4,840

d3,400

d3,580

d2 , 980

d2,250

dl,050

dl,400

d3,050

d2,150

d2,350

d2,350

91 , 540

3,157

_

_

+3.6

Mar.

dl,750

*dl,650

dl,500

dl.100

dl,020

d960 

d940

dl,750

dl,850

dl,850

dl,750

dl,600

dl,300

d2 , 700

4,810

d3,300

d2,750

d2,470

d2,000

*dl,500

dl,400

dl,400

dl,400

dl,950

dl,950

dl,700

dl,850

d2,000

d2,750

d3,400

d2 , 900

61,250

1,976

_

_

+9O.9

Apr.

d2,450

d2,O5O

d2,050

d2,180

1,730

1,470 

d6.160

4,900

3,900

3,510

2,570

1,700

1,310

1,O9O

960

901

831

777

759

759

736

663

668

646

674

663

679

614

571

540

48,511

1,617

-

_

+150

May

498

498

dl,050

dl,120

dl.100

d940 

dl,600

dl,900

dl,350

dl,180

dl.100

dl,020

dl,950

dl,350

dl,100

dl,150

dl,080

dl,350

dl,350

dl.100

d940

d820

*1,110

1,460

988

819

1,580

8.510

3,580

2,270

1,780

47,445

1,530

-

_

+41.5

June

1,640

1,730

5,150

2,550

1,850

1,450 

1,120

914

765

679

566

478

402

79T

837

598

467

576

953

789

619

625

571

488

508

777

940

869

619

467

28,728

958

-

-

-5.4

July

575

508

279

256

234

575 

447

368

*296

556

271

208

189

198

239

258

192

205

186

256

227

185

195

260

292

263

245

d700

d960

1.120

561

10,458

337

-

-

+0.07

Aug.

575

504

296

259

1,510

11.400 

d4,250

d2,250

dl,450

dl,020

d740

d560

*447

417

432

565

279

258

251

35T

2,630

2,160

dl,350

641

524

452

407

387

d430

d520

d410

57,062

1,196

-

-

-34.8

Sept.

d570

d550

d500

d280

263

284 '387

288

279

*249

258

592

549

279

256

504

549

526

363

279

252

258

224

245

259

263

256

544

447 

34T

9 037

301

-

-

-83.0

Calendar year 1955: Max EO.5OO Hln 107 Mean 9O9 Cfara 1.53 In. 20.69 t -12.7

Water year 1955-56: Max 11,400 Hln 116 Mean 996 Cfam 1.67 In. 22.74 t +4.4

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second, In Stony River and Savage River 

Reservoirs. Records furnished by west Virginia Pulp and Paper Co. and Corps of Engineers, 

respectively.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

upstream and downstream stations.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed from partly reconstructed gage-height graph 

based on records for stations at Luke and Cumberland.
POTOMAC RWER BASIN 471

Wills Creek below Hyndman, Pa.

Location.--Lat 39°48'43", long 78°43'00", on left bank 150 ft upstream from county highway 

bridge, 150 ft downstream from Pennsylvania Railroad bridge, 0.35 mile downstream from 

Little Wills Creek, and half a mile south of Hyndman, Bedford County.

Drainage area. 146 sq mi.

Records available.--June 1951 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 891.37 ft above mean sea level (Pennsylvania Railroad benchmark).

Average discharge. 5 years, 191 cfs.

Extremes.--Maximum discharge during year, 2,680 cfs Apr. 7 (gage height, 5.56 ft); minimum, 3.6 cfs Jan. 23, result of freezeup.

1951-56: Maximum discharge, 11,600 cfs Oct. 15, 1954 (gage height, 11.02 ft), from 

rating curve extended above 6,000 cfs by logarithmic plotting; minimum, 1.0 cfs 

Sept. 2-5, 1953 (gage height, 1.26 ft).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating table, water year 1955-56, except period of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.36

1.4

1.5 

1.7 

2.0

7.0 

9.2

94

2.4 

3.0 

4.0 

5.0

210

480

1,180

2,070

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

13

11

10

9.8

9.8

13

17

16

14

13

11

10

10

23

3J3

23

18

17

17

15

14

13

12

12

11

11

11

11

11

16

16

446.6

14.4

0.099

0.11

Nov.

15

14

14

14

14

14

14

14

13

13

20

30

40

35

30

35

60

52

45

40

42

44

46

49

49

45

42

*39

26

33

941

 31.4

0.215

0.24

Dec.

31

29

34

45

45

34

20

24

23

20

19

18

17

17

18

16

15

16

16

14

*13

12

14

16

35

25

15

*10

13

14

12

650

21.0

0.144

0.17

Jan.

12

12

13

15

16

14

10

8.0

sTF

*9.0

11

14

13

10

11

12

11

10

11

14

13

13

11

8.0

9.0

10

9.5

9.0

15

800

400

1,532.0

49.4

0.338

0.39

Feb.

217 679-

988

464

357

437

541

479

595

699

732

692

491

*366

425

502

486

1,520

1,290

774

513

366

285

225

500

780

500

550

400

16,653

574

3.93

4.24

Mar.

350

320

280

230

*206

228

622

1,240

996

647

474

400

330

691

1,110

844

614

464

362

303

298

330

366

513

524

502

430

415

530

699

628

15,946

514

3.52

4.06

Apr.

474

415

1,010

1,280

788

614

1,820

1,850

*996

666

486

*366

294

238

217

203

178

182

169

154

148

148

178

175

178

196

210

210

203

200

14,246

475

3.25

3.63

May

172

309

1,020

795

530

390

430

344

308

281

253

312

321

321

294

303

253

265

234

220

*203

182

399

362

273

228

597

1,080

809

577

474

12,539

404

2.77

3.19

June

420

366

405

362

316

257

206

169

145

126

104

86

75

66

73

64

60

146

157

104

86

75

66

60

66

53

67

58

47

ii

4,326

144

0.986

1.10

July

36

72

126

111

96

99

71

55

49

41

*35

29

28

29

24

21

46

63

44

86

77

69

53

50

45

36

38

34

28

23

19.

1,633

52.7

0.361

0.42

Aug.

18

17

16

14

5T

294

214

182

137

104

81

66

58

*58

50

41

36

31

29

80

245

150

110

90

72

60

55

95

225

105

85

2,875

92.7

0.635

0.73

Sept.

75

100

70

*58

54

137

105

85

70

60

55

50

46

42

65

135

98

86

76

68

60

54

50

50

48

43

40

40

40

40

2,000

66.7

0.457

0.51

Calendar year 1955: Max 2,930 Min 7.0 Mean 173 Cfsm 1.18 In. 16.12

Water year 1955-56: Max 1,850 Min 8.0 Mean 202 Cfsm 1.38 In. 18.79

Peak discharge (base, 2.100 cfs).--Apr. 7 (5:30 p.m.) 2,680 cfs (5.56 ft).

* Discharge measurement made on this day.

Hote.--No gage-height record Oct. 23 to Nov. 27, Feb. 23 to Mar. 4, Aug. 12, 13, Aug. 20 to 

Sept. 3, Sept. 7-30; discharge estimated on basis of recorded range in stage where available, 

weather records, and records for nearby stations. Stage-discharge relation affected by ice De 

to Jan. 30.
472 POTOMAC RIVER BASIN

Wills Creek near Cumberland, Md.

Location. Lat 39"40'07", long 78°47'18", on right bank at downstream side of Western Maryland Railway bridge, 2 miles upstream from Cumberland, Allegany County, and mouth.

Drainage area. 247 sq ml.

Records available.--May 1905 to July 1906 (published as "at Cumberland"), October 1929 to 

September 1956.

Gage.--Water-stage recorder. Datum of gage Is 640.89 ft above mean sea level (Corps of 

 Engineers benchmark). May 6, 1905, to July 14, 1906, chain gage at highway bridge

700 ft (corrected) upstream at different datum. Oct. 18, 1929, to Mar. 17, 1936, waterstage recorder and Apr. 1, 1936, to Mar. 19, 1937, tape gage, 200 ft (corrected) upstream at present datum.

Average discharge.--27 years (1929-56), 315 cfs.

Extremes.--Maximum discharge during year, 4,050 cfs Apr. 7 (gage height, 6.72 ft); minimum, 13 cfs Jan. 14, result of freezeup, but may have been less during period of Ice 

effect.

1905-6,1929-56: Maximum discharge, 38,100 cfs Mar. 17, 1936 (gage height, 20.2 ft, 

from floodmarks at present site), from rating curve extended above 6,500 cfs on basis 

of slope-area determinations at gage heights 13.45 and 20.2 ft; minimum, 9 cfs Oct. 14, 

1930.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown In the following table. They supersede figures published In the water-supply 

papers Indicated.

WSP

696 

741 

756 

1031

Water 

year

1906 

1930 

1933 

1934 

1945

Date

Mar. 27, 

Oct. 22, 

Mar. 14, 

Jan. 7, 

Feb. 27,

1906 

1929 

1933 

1934 

1945*

Discharge 

(cfs)

$4,440 

4,170 

7,320 

5,040 

5,030

Gage height 

(feet)

t8.4 

7.02 

8.8 

7.6 

7.28

* Date only revised.

t From graph based on gage reading.

t Not previously published.

Remarks.--Records good except those for periods-of Ice effect or no gage-height record, 

which are fair. Records Include drainage from numerous active and abandoned coal mines 

Slight diurnal fluctuation at low flow caused by quarry upstream.

Revisions. WSP 726: Drainage area. Revised figures of discharge, In cubic feet per 

second, for the water years 1906, 1936, and 1937, superseding those published In 

WSP 192, 801, and 821, are given herewith:

Date

1906

Feb. 3

4

5

6

7

8

9

Discharge

115

100

90

9O

90

95 100

Da be

1906-Oon.

Peb . 1O

11

12

13

15

16

17

Discharge

95

90

95

100

105

95

90

Date

1906-Con.

Peb. 27

28

1936

Aug. 29

31

Dec. 6

Discharge

75

70

114

116

106

Month

February 1906 ...............

Water year 1936-37 ........

Cf s-days

-

159.435

Maximum

256

13,700

Minimum

70

21

Mean

106

437

Per square 

mile

0.429

1.77

Runoff in 

inches

0.45

24.01
POTOMAC RIVER BASIN 473

Wills Creek near Cumberland, Md. Continued

Rating tables, water year 1955-56, except periods of ice effect (gage

height, In feet, and discharge, in cubic feet per second)

(Shifting-control method used Feb. 26 to Mar. 6)

Oct. 1 to Nov. 17

1.6 30

1.8 47

2.2 96

Nov. 18 to Sept. 30

1.5 

1.7 

2.0 

2.5 

3.0

20

34

64

151

305

3.5 535

4.0 830

5.0 1,710

6.0 2,960

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ototal

Mean

Cfsm

In.

Oct.

46

42

39 

38

38

43

46

45 

42

41

38

36

36

47

61

55

48

44

43

42

40

39

38

37

31

35

36

35

37

38

40

1,279

41.3

0.167

0.19

Nov.

38

38

38 

38

39

38

38

38 

38

36

43

51

59

55

52

57

93

75

68

64

58

60

64

70

71

67

62

*58

41

40

1,587

5Z.9

0.214

0.24

Dec.

44

43

47 

58

62

50

a40

a39 

a41

a36

a34

a32

a30

a30

a31

a29

a28

a29

a29

a27

a26

a25

 27

30

49

b43

b28

b23

b27

b27

b25

1,089

35.1

0.142

0.16

Jan.

b25

b25

26 

29

32

30

bZ8

bZ2 

b24

*b26

29

33

b31

b23

b26

b28

b26

b24

b25

31

b30

30

b26

b21

b26

b25

b24

b35

b800

577

2,162

69.7

0.282

0.33

Feb.

251

1,420 

675

505

725

925

685 

837

963

1,030

1,090

778

590

618

711

705

1,820

1 850

l!200

824

601

475

368

773

1,110

893

942

735

24,803

855

3.46

3.73

Mar.

640

596

510 

440

*376

372 699"

1,350 

1,180

817

628

552

475

1,080

1,540

1,230

949

753

623

557

546

596

657

830

817

798

705

651

830

1,020

942

23,759

766

3.10

3.58

Apr.

747

651

1,260 

1,670

1,160

973

2,880

2.890 

1,640

1,140

865

681

568

480

430

394

350

333

321

281

262

254 'SFf

285

289

289

*309

309

301

305

22,614

754

3.05

3.40

May

262

372

1.320 

1,100

791

623

687

552 

490

460

445

465

490

470

430

450

372

381

333

305

281

254

IBT

480

358

297

693

1,240

1,020

753

675

17,300

558

2.26

2.60

June

596

535

590 

520

465

404

*325

273 

237

212

179

158

143

136

128

147

128

377

426

221

224

182

158

145

147

136

172

140

117

104

7,725

258

1.04

1.16

July

97

106

184 

190

182

179

143

119 

106

94

84

77

71

71

67

 59

65

120

106

203

203

177

132

143

122

a96

al!6

alOO

a86

a76

a67

3,641

117

0.474

0.55

Aug.

a60

a55

a53 

a52

a2T6~

a560

337

Z97 

209

167

138

115

*101

96

92

80

74

65

63

152

408

248

184

147

120

102

91

166

380

172

143

5,137

166

0.672

0.77

Sept.

124

169

124 

*108

94

176

195

143 

117

101

94

89

80

71

110

224

1ST

143

122

113

99

89

83

84

80

70

67

68

67

64

3,335

111

0.449

0.50

Calendar year 1955: Max 4,320 Min 23 Mean 289 Cfsm 1.17 In. 15.89

Water year 1955-56: Max 2,890 Min 21 Mean 313 Cfsm 1.27 In. 17.21

Peak discharge (base. 5.500 cfs) . Apr. 7 (8:30 p.m.) 4,050 cfs (6.72 ft). 

* Discharge measurement made on this day. 

a No gage-height records discharge estimated on basis of recorded range In stage, weather records, 

and record for station below Hyndman.

b Stage-discharge relation affected by ice.
POTOMAC RIVER BASIN

North Branch Potomac River near Cumberland, Md.

Location. Lat 39°37'16", long 78°46'24", on left bank at downstream side of Wiley Ford 

Bridge, 2 miles south of Cumberland, Allegany County, and 2.1 miles downstream from 

Wills Creek.

Drainage area. 875 sq mi.

Records available. May 1929 to September 1956.

Gage. Water-stage recorder. Datum of gage is 585.22 ft above mean sea level (Corps of 

Engineers benchmark). Prior to June 18, 1929, chain gage at same site and datum.

Average discharge. 27 years, 1,219 cfs (unadjusted).

Extremes. Maximum discharge during year, 16,500 cfs Aug. 6 (gage height, 14.82 ft); minimum, 88 cfs Oct. 5 (gage height, 2.57 ft).

1929-56: Maximum discharge, 88,200 cfs Mar. 17, 1936 (gage height, 29.1 ft), from 

rating curve extended above 21,000 cfs on basis of slope-area determination of peak 

flow; minimum (river only), 12 cfs Sept. 22, 1932 (gage height, 2.38 ft); minimum daily 

(including flow in canal), 38 cfs Sept. 24, 1932.

Maximum stage known, 29.2 ft June 1, 1889 (discharge, about 89,000 cfs). Flood of 

Mar. 29, 1924, reached a stage of 28.4 ft (discharge, about 82,000 cfs).

Remarks. Records good. Regulation by reservoir on Stony River, about 79 miles above

station (see p. 463), and since December 1950, by reservoir on Savage River (seep. 466). 

Small amount of inflow from Industrial wastes and sewage from city of Cumberland from 

water diverted from Evitts Creek, mouth of which Is below station.

Revisions (water years).--WSP 726: Drainage area. WSP 781: 1932(M).

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

2.8 

3.0 

3.5 

4.0

135

195

411

746

5.0 

7.0 

13.0

1,660

3,930

13,200

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In,

«)

Oct.

202

192

182

182

168

192

212

198

195

192

185

179

173

198

230

253

234

212

202

202

198

212

206

192

176

173

189

195

185

185

182

6,076

196

-

-

-66.0

Nov.

176

163

163

163

160

157

160

163

155

160

182

198

246

*321

265

257

458

445

369

308

290

282

326

436

699

456

375

321

270

*220

8,344

278

-

-

-6.6

Dec.

195

223

234

564

602

510

417

350

359

326

308

299

299

273

290

290

261

253

286

273

242

230

234

257

299

676

433

321

269

261

326

10,160

328

-

_

-47.2

Jan.

250

182

185

212

223

223

212

206

182

*176

192

189

192

182

169

169

182

169

169

185

176

176

169

163

149

173

192

173

202

3,600

5,110

14,132

456

-

_

+8.2

Feb.

3,250

*2,590

8,21O

4,92O

4,420

4,890

6,5OO

4,400

3,650

4,020

3,930

4,200

3,400

*2,80O

2,730

3,220

2,990

6,240

7,440

4,830

4,640

3,810

3,140

1,850

1,990

4,030

2,980

3,230

3,040

117,340

4,046

-

_

+3.6

Mar.

2,510

2,350

2.130

1,650

1,470

1,550

1,670

2,870

3,190

2,810

2,470

2,350

1,860

2,930

6,820

4,750

3,880

3,340

2,850

2,240

2,090

2,130

2,170

2,680

2,870

*2,560

2,630

2,660

3,440

4,500

3,980

87,200

2,813

-

-

+90.9

Apr.

3,27O

2,860

3,200

3,970

3,020

2,560

8.770

8,210

5,640

4,750

3,500

2,52O

2,040

1,750

1,55O

1,450

1,320

1,240

1,210

1,100

1,110

1,040

1,020

1,040

1,060

1,040

1,110

1,030

983

956

74,319

2,477

-

-

+150

May

948

974

*2,17O

2,210

1,940

1,640

1,92O

2,630

1,950

1,750

1,660

1,590

2,380

1,990

1,680

1,680

1,580

1,720

1,850

1,570

1,360

1,220

*1,480

2,050

1,510

1,240

1,650

9,500

4,840

2,100

2,540

66,322

2,139

-

-

+41.5

June

2,260

2,37O

5,530

3,150

2,380

1,950

1,590

1,320

1,120

991

805

684

582

927

1,040

795

610

1,150

1,440

1,140

1,010

904

812

676

653

939

1,140

1,140

820

617

38,503

1,283

-

-

-3.4

July

479

428

491

479

461

575

582

516

422

401

395

*299

261

269

273

326

269

321

340

516

504

401

340

390

428

406

369

781

845

1,430

730

14,727

475

-

-

+0.07

Aug.

473

385

364

336

592

11,70O

4,960

2,62O

1,740

1,270

965

730

588

*522

528

479

385

326

308

464

2,740

2,560

1,700

862

676

555

485

549

948

762

42,147

1,360

-

-

-34.8

Sept.

522

575

456

411

364

491

588

498

390

359

336

417

461

359

359

568

528

479

485

406

354

326

308

312

336

336

326

380

510

428

12,668

422

-

-

-83.0

Calendar year 1955: Max 17,100 Hin 155 Mean 1,250 Cfsm 1.43 In. 19.41 t -12.7

Water year 1955-56: Max 11,700 Mln 149 Mean 1,344 Cfsm 1.54 In. 20.90 t +4.4

Peak discharge (base, 10,000 efsl.--Apr. 7 (8:30 p.m.) 10,900 cfs (11.66 ft); May 28 (9 a.m.) 

11,900 cfs (12.26 fb); Aug. 6 (2:45 p.m.) 16,500 cfs (14.82 ft).

* Discharge measurement made on bhis day.

t Change In contents, equivalent in cubic feet per second, in Stony River and Savage River Reservoirs. Records furnished by west Virginia Pulp and Paper Co. and Corps of Engineers, respectively.
POTOMAC RIVER BASIN 475

Evltts Creek near Centervllle, Pa.

Location. Lat 39°47'23", long 78"38'48", on left bank 2 miles upstream from Thomas V. 

Koon Dam, 3 miles south of Centervllle, Bedford County, and 7 miles upstream from Rock 

Gully Creek.

Drainage area. 30.2 sq ml.

Records available. September 1932 to September 1956. Prior to October 1952, published as 

"near Bedford Valley."

Gage. Water-stage recorder and concrete control. Datum of gage Is 1,027.59 ft above mean 

sea level (city of Cumberland benchmark).

Average discharge. 24 years, 30.6 cfs.

Extremes. Maximum discharge during year, 1,030 cfs July 19 (gage height, 3.56 ft), from 

rating curve extended above 520 cfs on basis of slope-area determination at gage height 

4.64 ft and contracted-opening determination at gage height 4.98ft; minimum. 2.0 cfs Jan. 18, 

result of freezeup.

1932-56: Maximum discharge, 5,240 cfs Mar. 17, 1936 (gage height, 7.13 ft), from 

rating curve extended above 400 cfs on basis of slope-area determinations at gage 

heights 4.64 and 7.13 ft; minimum, 1.2 cfs July 27, 1934 (gage height, 0.96 ft). 

Maximum stage known, about 8 ft, from floodmark, date unknown.

Remarks. Records good except those for periods of ice effect or doubtful or no gage-height 

record, which are fair.

Revisions (water years).--WSP 781: 1933(M).

Rating table, water year 1955-56, except period of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.0

1.1

1.2

1.3

1.4

1.5

2.1

3.1

4.9

7 .4

11

16 3.0

169

290

540

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

4.7

4.3

4.1

4.1

4.5

5.3

4.9

4.7

4.3

3.9

3.8

3.8

3.9

a7 .4

a6. 8

5.1

4.7

4.7

4.5

3.9

3.9

3.8

3.8

3.6

5.5

3.6

3.6

3.6

3.8

7.9 s~«

O . 0

140.1

4.52

0.150

0.17

Nov.

.4.7

4.3

4.3

4.5

4.1

4.1

4.1

4.5

4.1

4.1

6.0

9.2

7.8

6.3

5.8

8.0

11

6.6

5.8

*5.8

6.3

7.8

6.8

6.0

5.6

5.1

4.9

4.7

4.1

3.9

170.3

5.68

0.188

0.21

Dec.

3.9

4.1

4.7

6_.3_

5.8

4.9

4.5

4.5

4.5

3.9

3.6

3.4

3.4

3.6

3.6

3.2

3.0

3.3

3.3

3.1

2.9

2.7

2.7

3.0

4.0

3.5

3.0

2.5 2~TT z'.z

3.0

113.8

3.67

0.122

0.14

Jan.

3.0

2.7

3.0

3.3

3.5

3.5

3.0

2.5

2.5

3.3

4.1

4.7

4.3

3.7

3.5

*3.8

3.6

3.4

3.2

3.5

3.7

3.7

3.5

3.2

3.0

3.2

3.0

2.8

5.0

110 "30

239.2

7.72

0.256

0.29

Feb.

15

52

107

35

40

90

*99

48

48

56

78

85

54

42

46

41

41

~55 158

75

58

45

39

37

59

56

45

64

43

1,751

60.4

2.00

2.16

Mar.

a35

a40

a35

a32

a30

a29

aSO

alOO

*67

61

56

53

51

144 "99

79

73

64

56

56

59

63

63

64

54

54

48

48

75

71

54

1,863

60.1

1.99

2.29

Apr.

48

48

141

117

85

101

356

263

159

117

92

*77

64

56

53

49

43

46

39

34

30

29

35

34

55

32

30

29

29

35

2,306

76.9

2.55

2.84

May

29

57

99

67

58

53

58

45

39

37

34

*45

41

34

31

34

30

32

27

24

23

22

29

23

20

19

67

58

41

55

69

1,300

41.9

1.39

1.60

June

59

61

73

*54

49

43

39

33

31

28

23

21

20

19

19

25

45

87

66

30

26

22

19

17

16

15

22

15

12

11

1,000

33.3

1.10

1.23

July

11

14

20

40

a38

a36

a30

a25

a20

a!5

*a!2

11

12

12

10

9.2

74

43

190

211

99

77

63

54

43

34

32

27

a24

a21

a!8

1,325.2

42.7

1.41

1.63

Aug.

a!6

a!5

*14

12

58

127

TfO

aSO

a35

29

25

22

20

21

19

15

14

12

12

32

56

21

16

14

12

12

12

68

50

25

20

924

29.8

0.987

1.14

Sept.

20

31

16

*15

a!4

a30

a30

a!8

a!5

a 13

a!3

a!3

all

alO

a25

a45

a30

a20

a!6

a!5

a!4

a 13

a 12

a 12

all

a9.5

a9.0

alo

a9.0

a8.5

508.0

16.9

0.560

0.63

Calendar year 1955: Max 540 Min 2.5 Mean 30.3 cfsm 1.00 in . 13.63

Water year 1955-56: Max 35B Min 2.5 Mean 31.8 cfsm 1.05 in . 14.33

Peak discharge (base. 400 cfs).--Apr. 7 (5:30 p.m.) 533 cfs (2.99 ft); July 19 (7 p.m.) 1,030 cfs 

(3.56 ft); AugT 28 (9:30 p.m.) 556 cfs (3.02 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

nearby stations.

Note.--Stage-discharge relation affected by ice Dec. 11 to Feb. 1 (doubtful or no gage-height 

records Dec. 16 to Jan. 29; discharge estimated on basis of available record, 1 discharge measurement, weather records, and records for nearby stations).
476 POTOMAC RIVER BASIN

Patterson Creek near Headsville, W. Va.

Location. Lat 39°26'35", long 78°49'20", on right bank 100 ft downstream from Hazel Run, 

1 mile downstream from Cabin Run, 4 miles northeast of Headsville, Mineral County, and 

8 miles east of Keyser.

Drainage area. 219 sq mi.

Records available. August 1938 to September 1956.

gage. Water-stage recorder. Datum of gage is 624.90 ft above mean sea level (Corps of 

TSngineers benchmark). Prior to Oct. 11, 1946, wire-weight gage on bridge 1 mile upstream at datum 6.14 ft higher.

Average discharge. 18 years, 165 cfs.

Extremes.--Maximum discharge during year, 3,750 cfs Mar. 14, Apr. 7; maximum gage height, 

9.49 ft Apr. 7; minimum daily discharge, 10 cfs Dec. 20-22, Jan. 8,9.

1938-56: Maximum discharge, 16,000 cfs Aug. 18, 1955 (gage height, 12.20 ft), from 

rating curve extended above 4,900 cfs on basis of relation curve with former site, at 

which rating curve was defined to 14,500 cfs; minimum, 2.5 cfs Oct. 2, 1953 (gage 

height, 2.02 ft).

Remarks. Records good.

Revisions (water years). WSP 951: 1939-40.

Rating table, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Nov. 15-19, May 29 to June 16)

2.21 

2.3 

2.5 

2.8

3.5 

6.0 

8.0 

9.0

271

1,180

2,300

3,150

Discharge, In cubic feet per second, water year October 1955 tb September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfsm

In.

Oct.

16

15

15

15

15

18

22 

23

15

16

15

15

15

19

21

22

»17

15

15

15

15

15

14

14

13

12

13

14

15

16

17

501

16.2

0.074

0.09

Nov.

16

16

17

17

15

15

15 

16

17

16

21

28

34

3T

26

27

»28

25

24

27

28

30

30

30

27

25

24

24

18

19

686

22.9

0.105

0.12

Dec.

15

19

19

23

23

23

21 

19

18

16

16

15

13

13

15

11

12

12

»14

19.

10

10

12

12

18

20

18

13

13

13

12

478

15.4

0.070

0.08

Jan.

12

12

13

13

13

12

12 

10

T5

11

15

26

26

18

18

22

19

15

17

18

18

17

 19

14

13

12

12

12

23

549

506

1,507

48.6

0.222

0.26

Feb.

222

676

1,530

686

650

1,240

2,060 

776

488

369

366

542

»356

254

236

208

225

1,540

1,060

560

327

225

181

151

556

304

225

222

189

16,094

555

2.53

2.73

Mar.

162

154

149

131

114

109

123 

167

146

128

121

»123

151

2.040

1,850

888

722

686

560

560

542

524

542

524

366

301

251

220

390

506

363

13,613

439

2.00

2.31

Apr.

265

236

280

295

234

292

2.930 

1,680

832

542

400

298

239

197

178

*172

149

133

121

102

94

87

85

87

96

87

83

81

79

76

10,430

348

1.59

1.77

May

72

74

79

81

76

72

79 

109

91

83

81

81

151

*121

102

94

87

91

87

79

79

74

74

76

70

63

70

222

T56

100

78

2,852

92.0

0.420

0.48

June"

74

87

146

111

79

68

60 

57

57

52

44

»38

33

fZ

45

48

648

42T

428

228

154

131

87

74

66

76

78

63

51

44

3,596

120

0.548

0.61

July

38

36

34

78

110

808

192 

83

*60

55

45

37

33

30

26

24

24

24

28

41

28"

23

22

51

45

30

36

34

30

23

2J.

2,149

69.3

0.316

0.36

Aug.

19

T5

21

20

86

1.560

410 

211

109

74

62

49

42

44

36

»26

22

21

19

110

542

248

105

60

44

36

31

30

32

26

25

4,139

134

0.612

0.70

Sept.

22

38

36

26

22

30

32 

26

21

18

17

72

38

26

23

33

31

33

27

24

20

19

18

17

16

*I5

18

37

37

30

822

27.4

0.125

0.14

Calendar year 1955: Max 6,280 Mln 9.5 Mean 183 Cfsm 0.836 In. 11.36

Water year 1955-56: Max 2,930 Mln 10 Mean 155 Cfsm O.708 In. 9.65
POTOMAC RIVER BASIN 477

South Branch Potomac River at Franklin, W. Va.

Location. Lat 38*38"14", long 79°20'14", on left bank half a mile southeast of Franklin, 

Pendleton County, 2 miles upstream from Friends Run, and 2^ miles downstream from Thorn 

Creek.

Drainage area.--182 sq mi.

Records available. April 1940 to September 1956.

Gage.--Water-stage recorder and improved natural control. Datum of gage is 1,692.5 ft 

above mean sea level (Corps of Engineers benchmark).

Average discharge. 16 years, 170 cfs.

Extremes. Maximum discharge during year, 1,610 cfs Mar. 14 (gage height, 4.21 ft); minimum daily, 22 cfs Jan. 8.

1940-56: Maximum discharge, 15,000 cfs June 17, 1949 (gage height, 11.40 ft, from 

floodmarks), from rating curve extended above 6,400 cfs on basis of slope-area determination of peak flow; minimum, 17 cfs Dec. 23, 1943 (gage height, 1.40 ft). 

Maximum stage known, about 13 ft in March 1936.

Remarks. Records good except those for periods of ice effect, which are poor.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.4 

1.6 

1.9 

2.2

70

131

2.5

3.0 

3.5 

4.0

245

518

889

1,380

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

I

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tbtal

Mean

Cfsm

In.

Oct.

38

38

36

35

35

37

37

44

40

36

34

33

*34

46

44

39

36

37

36

34

33

32

32

32

32

32

32

32

32

34

32

1,104

35.6

0.196

0.23

Nov.

32

3?

33

32

32

32

33

34

34

35

38

43

46

*40

38

37

36

34

40

41

4O

49

50

55

35

45

42

40

32

36

1,160

38.7

0.213

0.24

Dec.

35

37

42

45

4T

*40

39

38

38

34

29

b28

b30

36

36

32

b30

34

35

b28

b3O

32

32

34

43

39

31

b27

b30

b3O

b25

1,064

34.3

0.188

0.22

Jan.

b28

b3O

34

33

30

3O

32

b22

b27

31

32

32

32

27

b25

33

28

*28

33

32

29

30

30

25

b23

32

b25

b25

67

301

154

1,370

44.2

0.243

0.28

Feb.

439" 84

571

385

336

439

669

*402

282

228

211

245

195

176

191

195

203

291

336

296

237

191

161

144

271

420

301

301

232

S,432

291

1.60

1.72

Mar.

199

187

172

157

131

*128 IBo"

625

518

374

301

254

245

949

906

669

525

443

374

316

282

268

254

259

228

220

199

191

211

203

191

10, 159

328 i.ao

2.08

Apr.

176

172

176

164

148

183

837

881

612

*474

385

326

282

241

254

282

254

241

224

207

191

176

168

164

154

138

131

121

118

114

7,994

266

1.46

1.63

May

L06

*L06

L14

154

98

93

91

89

82

78

78

78

78

73

70

75

73

80

69

69

66

63

69

67

60

57

ST

73

75

69

69

2,434

78.5

0.431

0.50

June

73

93

321

?8T

*184

151

124

104

96

87

75

70

63

62

59

56

67

77

70

62

57

57

63

54

48

43

42

41

41

38

2,610

87.0

0.478

0.53

July

39

37

42

48

109

60

48

42

41

39

36

34

34

40

34

32

*S?

34

32

34

38

38

60

59

70

50

44

42

38

40

35

1,361

43.9

0.241

0.28

Aug.

34

46

57

44

55

133

ITT

82

62

51

45

41

37

40

38

37

33

32

30

31

50

41

^^4

*32

30

28

?5

29

36

31

32

1,410

45.5

0.250

0.29

Sept.

34

30

28

31

31

32

34

32

29

28

28

29

28

27

32

70

4?

*46

41

40

36

34

33

33

32

31

45

59

43

38

1,083

36.1

0.198

0.22

Calendar year 1955: Max 3,190 Mln 25 Mean 161 Cfsm 0.885 In. 12. 05

Water year 1955-56 : Max 949 Mln 22 Mean 110 Cfsm 0.604 In. 8.22

Peak discharge (base. 1.500 efs). Mar. 14 (3:30 p.m.) 1,610 cfs (4.21 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
478 POTOMAC RIVER BASIN

North Fork of South Branch Potomao River at Cabins, W. Va.

Location. Lab 38°59'05", long 79°14'10", on left bank 380 ft upstream from highway bridge 

at Cabins, Grant County, ij miles downstream from Jordan Run, 3 miles upstream from 

mouth, and 6 miles west of Petersburg.

Drainage area. 314 sq. mi.

Records available. February 1940 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,050.13 ft above mean sea level (Corps of 

Engineers benchmark).

Average discharge. 16 years, 386 cfs.

Extremes. Maximum discharge during year, 5,600 cfs May 28, Aug. 6; maximum gage height, 

8.72 ft May 28; minimum discharge, 23 cfs Oct. 3-6 (gage height, 2.95 ft).

1940-56: Maximum discharge, 50,000 cfs June 17, 1949 (gage height, 18.0 ft, from 

floodmarks), from rating curve extended above 4,400 cfs on basis of slope-area determination of peak flow; minimum, 5.0 cfs Oct. 1-5, 9-11, 1953; minimum gage height, 

1.68 ft Sept. 16, 17, 1946.

Remarks. Records good except those for periods of ice effect, which are poor. 

Revisions (water years). WSP 1272: 1945.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.95 

3.1 

3.4 

4.0

23

42

102

303

4.5 

6.0 

8.0

555

1,780

4,350

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

26

25

24 

25

25

23 

27

41

42

41

55

51

27

*51

49

59

47

59

58

56

47

41

58

54

32

34

55

55

55

54

54

1,086

55.0

0.111

0.13

Nov.

32

51

51 

29

51

28 

27

27

27

29

55

59

61

102

*88

84

118

123

105

102

88

95

128

316

265

211

170

140

blOO

77

2,755

91.2

0.290

0.52

Dec.

88

90

154 

214

256

208 

*177

157

145

128

93

81

b70

b70

90

b80

61

73

71

b55

45

4T

59

59

148

190

131

blOO

88

125

b!50

3,465

112

0.357

0.41

Jan.

93

b85

90 

84

69

59

63

b50

b45

b50

56

61

57

b50

b45

52

45

39

*49

52

47

45

47

b40

b3_5

b40

b55

b40

b70

b900

1,110

5,605

116

0.569

0.45

Feb.

543

2,190

2,760 

1,680

1,680

1,840 

3,020

1,780

1,150

895

775

842

697

588

812

*1,070

1,050

1,640

2,000

1,360

966

685

513

415

616

1,190

926

850

655

35,186

1,213

3.86

4.17

Mar.

543

507

515 

484

446

435 

*545

1,110

1,280

990

760

648

662

2,620

5,140

1,780

1,250

990

790

648

581

600

574

746

760

739

775

1,020

1,590

1,590

1,150

30,244

976

3.11

5.58

Apr.

842

697

775 

775

641

641 

2,650

2,820

1,750

1,280

1,070

*858

676

549

507

484

468

451

450

440

425

450

420

390

365

368

368

350

532

511

22,521

751

2.59

2.67

May

283

263

295 

291

265

240 

285

299

265

244

240

256

255

233

218

*222

222

354

332

299

263

240

372

495

390

328

464

5.610

1,780

1,050

704

15,031

485

1.54

1.78

June

697

698

2,760 

1,680

1,050

711 

*495

576

303

252

204

170

148

164

157

246

545

415

545

285

256

214

174

151

157

118

102

90

90

11

12,870

429

1.37

1.52

July

75

63

65 

69

552

324 

225

185

291

229

167

128

102

112

115

90

79

*86

86

75

75

69

67

102

185

137

200

236

167

160

128

4,654

149

0.475

0.55

Aug.

107

140

324 

233

1,700

4.210 

2,110

1,050

607

390

287

222

180

200

204

145

118

102

90

128

405

287

*190

142

115

97

86

89

576

204

157

14,695

474

1.51

1.74

Sept.

218

14?

107 

90

86

88 

84

77

65

56

50

52

52

45

42

65

120

*79

71

59

54

50

45

65

65

52

49

69

79

67

2,259

74.6

0.258

0.27

Calendar year 1955: Max 10,600 Mln 15 Mean 389 Cfsm 1.24 In. 16.83

Water year 1955-56: Max 4,210 Mln 23 Mean 405 Cfsm 1.29 In. 17.57

Peak discharge (base, 3,300 cfs). --Feb. 2 (7:50 p.m.) 4,350 cfs (7.98 ft); Feb. 7 (6 a.m.) 3,480

cfs (7.41 ft j Mar. 14 (6:50 p.m.) 5,200 cfs (B.50 ft); Apr. 7 (11 p

(9:50 a.m.) 5,600 cfs (8.72 ft); Aug. 6 (ll a.m.) 5,600 cfs (8.69 ft

m.) 5,540 cfs (7.51 ft); May 28

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.
POTOMAC RIVER BASIN 479

South Branch Potomac River near Petersburg, W. Va.

Location. Lat 38°59'34", long 79°10'26", on right bank 1.2 miles downstream from North 

Fork of South Branch Potomac River and 2| miles west of Petersburg, Grant County.

Drainage area . 642 sq mi.

Records available . June 1928 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 962.00 ft above mean sea level, adjustment 

of 1912. Prior to Dec. 4, 1928, staff gage at same site and datum.

Average discharge. 28 years, 690 cfs.

Extremes . Maximum discharge during year, 7,620 cfs Mar. 14, Aug. 6; maximum gage height, 

7.89 ft Mar. 14; minimum daily discharge, 85 cfs Jan. 28.

1928-56: Maximum discharge, 62,000 cfs June 17, 1949 (gage height, 22.83 ft), from 

rating curve extended above 11,000 cfs on basis of slope-area determination of peak 

flow; minimum, 43 cfs Oct. 2, 1930; minimum daily, 44 cfs Sept. 29, 30, Oct. 1, 8, 1930.

Maximum stage known prior to 1949, 21.2 ft, from floodmarks, sometime in 1877.

Remarks. Records good. Occasional low-flow regulation from powerplant 800 ft upstream. 

Revisions (water years). WSP 951: 1939-41. WSP 1141: 1932, 1933(M), 1936-38.

Rating table, water year 1955-56 (gage height, In feet, and

discharge, In cubic feet per second) 

(Stage-discharge relation affected by Ice Jan. 28)

1.1 

1.4 

£.0 

2.5

120

323

630

3.0 

4.0 

7.0

1,000

1,900

6,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

103

101

98

98

96

94

108

118

128

131

120

108

*101

108

125

150

159

125

118

113

115

115

110

103

98

96

98

101

101

101

3,418

110

0.171

0.20

Nov.

101

98

98

96

98

96

94

96

98

98

113

120

147

207

194

184

184

217

190

190

184

187

210

362

357

E89

252

224

177

144

5,105

170

0.265

0.30

Dec.

156

159

194

281

502

277

*252

231

224

210

156

131

120

147

174

147

118

142

144

125

110

100

125

128

194

277

228

142

153

197 

160

5,504

178

0.277

0.32

Jan.

139

130

150

153

142

128

125

115

90

103

120

131

128

113

103

108

118

106

108

118

113

110

108

101

88

96

94

85

125

1,330 

1,440

6,118

197

0.307

0.35

Feb.

775

2,320

3,770

2,480

2,480

2,480

4,330

2,730

*1,790

1,390

1,190

1,310

1,110

992

1,190

1,440

1,390

2,060

2,730

2,010

1,440

1,110

925

782

910

1,790

1,440

1,310

1,110

50,784

1,751

2.73

2.94

Mar.

962

902

895

835

768

738

872

1,580

2,120

1,580

1,270

1,110

1,150

3,650

5,070

3,250

2,420

1,900

1,530

1,310

1,190

1,190

1,110

1,230

1,230

1,190

1,190

1,390

2,060 

2,120

1,630

49,442

1,595

2.48

2.86

Apr.

1,270

1,110

1,190

1,190

1,040

1,040

3,770

4,620

3,180

2,360

*1,900

1,530

1,270

1,110

1,040

1,040

1,000

940

902

880

835

805

790

752

722

693

686

644

609

574

39,492

1,316

2.05

2.29

May

533

506

540

540

487

446

506

520

461

423

423

412

442

406

378

383

378

533

526

461

418

372

526

693

574

480

584

4,020

2,130

1,270 

940

21,313

688

1.07

1.23

June

940

940

3.250

2,300

1,440

*1,080

835

665

547

461

372

323

294

294

277

350

533

630

533

448

378

352

306

277

245

228

214

194

187 

171

19,064

635

0.989

1.10

July

243

200

159

184

758

581

395

310

442

367

281

228

203

200

214

168

156

168

174

153

153

147

139 "2T?

277

270

281

338

263 

249

224

'8,149

263

0,410

0.47

Aug.

171

224

412

348

2,520

5.680

3,060

1,480

962

672

500

378

323

323

357

281

238

187

168

228

560

474

323

245

210

194

168

*156

49T 

338

242

21,916

707

1.10

1.27

Sept.

315

252

210

171

162

165

165

159

139

123

115

125

128

113

110

125

245

177

*156

136

123

125

120

128

136

123

120

159

210 

142

4,677

156

0.243

0.27

Calendar year 1955: Max 16,100 Mln 92 Mean 710 Cfsm 1-H In. 15.03

Water year 1955-56: Max 5,680 Mln 85 Mean 642 Cfsm 1.00 In. 13.60

k discharge (base, 6.000 efs).--Mar. 14 (9 p.m.) 7,620 cfs (7.89 ft); May 28 (10 a.m.) 6,000 

7.04 ft); Aug. 6 (12 m.) 7,620 cfs (7.88 ft).

Isnhapcrp mpiasiiT-pTTtfanf: mart** nn t-.Vils rtn-w

Peak 

cfs7...- ..,, .

* Discharge measurement made on this day.
480 POTOMAC RIVER BASIN

Big Spring at Masonville, W. Va.

Location. Lat 38e 55'15", long 79°05'10", on right bank of Spring Run, at State fish 

hatchery, Masonville, Grant County, 6 miles southeast of Petersburg.

Records available.--August 1945 to September 1956.

Sage. Water-stage recorder and concrete control. Altitude of gage is 1,180 ft (from topographic map). Prior to May 14, 1951, water-stage recorder at site half a mile upstream 

at different datum. .May 14, 1951, to Feb. 5, 1952, staff gage at site 200 ft downstream at different datum.

Average discharge. 11 years, 13.4 cfs.

Extremes. Maximum discharge during year, 76 cfs Aug. 6 (gage height, 1.92 ft); minimum 

daily, 6.6 cfs Nov. 23 to Dec. 2, July 31, Aug. 1.

1945-56: Maximum discharge, 600 cfs June 18, 1949 (gage height, 2.68 ft, site and 

datum then in use), from rating curve extended above 100 cfs by logarithmic plotting; 

minimum, 4.9 cfs Oct. 6-8, 1947.

Remarks.--Records good except those for periods of no gage-height record, which are poor. 

BTg~Spring, which emerges several places half a mile above gage, is the source of 

entire flow except during wet weather when surface drainage from about 1 sq mi enters 

the stream above gage. Plow from surface sources is included in the records but is 

relatively small except during heavy rains.

Rating table, water year 1955-56 (gage height. In feet, 

and discharge, In cubic feet per second)

1.2

1.3

1.4

6.0

9.5

15

1.6 

1.9

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

Cfara

In.

Oct.

8.7 

STT

8.7

8.7

8.3

8.3

.9

.9

.9

.9

.9

.9

* .9

.9

.5

.9

.9

.9

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

775- .2

7.9

243.4

7.85

.

-

Nov.

7.2 

6.9

7.2

7.5

7.5

7.9

7.9

7.9

7.2

7.2

8.3

573

7.9

8.3

*7.5

6.9

7.2

7.2

6.9

6.9

6.9

6.9

6.6 6T5-

6.6

6.6

6.6

6.6

6.6

6.6

216.4

7.21

-

-

Dec.

6.6 6T8~

.0

.0

.5

.5

* .9

77?

.9

.9

.5

.5

.5

.5

.5

.5

.0

.0

.0

.0

.0

.0

.0

.0

.0

.5

.5

.5

.5

.5

.5

226.8

7.32

_

-

Jan.

.5 

.5

.5

.5

.5

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.9

*679

6.9

6.9

6.9

7.2

6.9

6.9

6.9

6.9

6.9

6.9

7.9

13

T?

230.5

7.44

.

-

Feb.

iP25

20

20

22

35

26

*21

19

17

17

15

14

14

14

14

14

14

14

14

14

13

13

13

13

13

13

12

478.1

16.5

_

-

Mar.

12 

12

12

11

11

10 *TT

12

13

13

13

13

13

33

ii

36

31

28

25

23

23

23

23

21

21

20

19

17

18

20

20

603

19.5

_

-

Apr.

18 

17

17

17

17

17

38

48

4T

31

28

*25

21

20

19

18

16

15

14

14

14

14

13

13

12

12

13

13

12

12

579

19.3

_

-

May

12 

T?

11

11

11

10

10

10

10

10

10

10

10

10

9.1

9.1

*9.1

9.1

8.7

97T

9.1

8.7

9.5

9.1

9.1

9.1

9.1

10

12

12

10

308.9

9.96

.

-

June

11 

12

17

TT

16

14

*13

12

12

12

10

10

10

10

10

10

10

10

12

11

10

10

10

9.1

9.1

8.7

8.7

8.7

8.7

8

* 

 o

330.3

11.0

-

-

July

8.7 

8.3

8.3

7.9

8.7

573- 9.1

7.9

8.3

8.3

.2

.2

.5

.5

.5

.2

.2

*8.3

8.3

8.3

8.3

8.3

8.3

8.3

7.5

.9

.9

.5

.5

.5

6.6

245.6

7.92

-

-

Aug.

B79" 6.6 

6.9

6.9

19

64

55

40

26

21

18

16

15

14

13

11

10

10

1O

1O

11

10

10

9.5

9.5

9.5

9.5

*12

11

11

11

496.3

16. 0

-

-

Sept.

~S.O 10 

8.5

7.9

8.3

7.9

8.3

8.3

8.3

7.5

7.9

8.3

7.9

7.9

8.3

8.7

8.3

8.3

*8.3

8.7

8.7

7.9

8.3

8.3

8.3

8.3

8.7

8.7

8.3

8.7

250.8

8.36

-

-

Calendar year 1955: Max 200 Mln 6.3 Mean 14.7 Cfam - In. -

Water year 1955-56= Max 64 Mln 6.6 Mean 11.5 Cfsm - In. -

* Discharge measurement made on this day.

Note. No gage-height record Nov. 27 to Dec. 6, Dec. 11 to Jan. 16, Feb. 5-7, Aug. 15, Aug. 31 to 

Sept. 3; discharge estimated on basla of weather records, recorded range In stage, and records for 

nearby stations.
POTOMAC RIVER BASIN 481

South Fork of South Branch Potomac River at Brandywine, w. Va.

Location. Lat 38°37i53", long 79°14'38", near center, of span on upstream side of bridge 

on U. S. Highway 33, 0.1 mile upstream from Hawes Run and 0.4 mile north of Brandywine, 

Pendleton County.

Drainage area. 102 sq mi.

Records available. August 1943 to September 1956.

Gage. Wire-weight gage and crest-stage indicator; gage read twice daily. Datum of gage 

"IB 1,558.35 ft above mean sea level, adjustment of 1912.

Average discharge. 13 years, 99.2 cfs.

Extremes. Maximum discharge during year, 1,130 cfs Mar. 14 (gage height, 4.55 ft); minimum observed, 2.0 cfs Jan. 22 (gage height, 2.15 ft).

1943-56: Maximum discharge, 41,200 cfs June 17, 1949 (gage height, 14.6 ft, from 

floodmarks), from rating curve extended above 5,300 cfs on basis of slope-area determination of peak flow; minimum observed, 1.8 cfs Sept. 1, 2, 1953; minimum gage height 

observed, 0.95 ft Aug. 10, 14, 15, 1950.

Remarks.--Records good.

Revisions (water years). WSP 1141: 1945(M), 1947(M).

Rating tables, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Nov. 1 to Dee. 11. Dee. 14-20, 23-27, 

Dee. 30 to Jan. 7, Jan. 10-29)

Oct. 1 to Mar. 14 Mar. 15 to Sept. 30

2.1

2.2

2.3

2.4

2.5

3.0 

4.5

7.5

13

22

2.6 

2.8 

3.1 

3.5 

4.1

35

73

156

330

735

2.24

2.3

2.4

2.5

5.0

8.0

16

27

2.7 59

3.0 137

3.5 351

4.0 670

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

9.7

9.7

9.2

9.2

9.7

9.7

10

13

IT

9.7

9.7

9.2

*8.6

10

11

10

9.7

9.2

10

9.2

8.6

8.0

7.5

rx

12

12

11

10

12

11

11

308.1

9.94

0.097

0.11

Nov.

11

11

11

11

9.7

9.2

10

12

11

10

14

IT

12

*11

9.7

9.7

8.6

8.0

11

12

12

12

12

12

12

11

10

9.2

8.0

7.5

321.6

10.7

0.105

0.12

Dee.

7.5

8.6

11

TT

11

*9.7

8.6

7.5

8.6

8.6

4.2

4.0

4.0

5.4

6.7

4.5

5.1

6.3

5.1

4.7

4.0

4.0

4.0

7.1

9.2

5.7

3.4

THT

5.0

6.7

4.7

199.9

6.45

0.063

0.07

Jan.

3.9

4.0

5.1

4.0

2.8

4.0

5.4

4.5

4.0

6.0

7.1

6.3

5.4

4.9

4.9

6.7

6.7

*6.7

8.6

6.0

2.7

37S

6.7

4.9

4.0

4.5

3.9

4.9

13

45

55

245.2

7.91

0.078

0.09

Feb.

30

4T

137

220

207

284

385

*S4T

163

125

111

131

125

114

100

87

87

103

137

131

108

92

69

56

69

207

156

134

108

3,961

137

1.34

1.44

Calendar year 1955 : Max 3,880 Mln 3.4

Mar.

90

83

73

69

58

*5J.

87

278

269

191

150

125

114

554" 722

351

249

210

187

164

144

137

128

119

104

89

86

86

81

77

72

5,209

168

1.65

1.90

Apr.

68

68

72

68

68

77

554" 629

331

*236

183

147

122

102

107

102

102

97

86

77

68

63

59

57

54

48

45

41

41

38

3,820

127

1.25

1.39

May

SB" 38

*38

37

33

30

33

30

27

27

26

25

27

25

25

23

23

25

23

20

20

18

20

18

17

16

18

18

16

14

13

761

24.5

0.240

0.28

June

14

29

38

28

 23

20

18

16

16

16

14

14

13

11

11

11

15

46

7$

25

20

20

33

20

15

13

11

11

9.6

8.8

577.4

19.2

0.188

0.21

July

8.0

8.0

9.6

11

9.6

9.6

9.6

8.8

8.0

7.0

7.0

6.0

6.0

6.5

5.5

5.0 *57fJ

7.0

5.0

7.0

7.5

7.5

20

25

30

17

14

11

11

13

11

317.2

10.2

0.100

0.12

Mean 82.4 Cfsm 0.808 In. 10

Aug.

11

16

14

13

38

"84 202

54

41

33

27

24

19

20

18

16

14

13

10

11

16

14

11

9.6

8.0

8.0

7.0

7.0

7.0

*7.0

6.5

779.1

25.1

0.246

0.28

Sept.

7.0

7.0

6.0

7.0

9.6

9.6

9.6

8.0

7.0

6.5

6.0

6.5

6.0

5.5

77ff

15

13

9.6

9.6

9.6

8.0

7.0

7.0

*7.5

7.0

7.0

18

50

31

26

336.6

11.2

0.110

0.12

97

Water year 1955-56 : Max 722 Mln 2.7 Mean 46.0 Cfsm 0.451 In. 6.13

Peak discharge (base. 1.600 cfs). No peak above base. 

* Discharge measurement made on this day.
482 POTOMAC RIVER BASIN

South Pork of South Branch Potomac River near Moorefield, W. Va.

Location.--Lat 39°00'44", long 78°57'23", on right bank 0.2 mile downstream from Stony 

Creek, 3f miles south of Moorefield, Hardy County, and 6 miles upstream from mouth.

Drainage area. 283 sq ml.

Records available.--June 1928 to September 1935, August 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 861.51 ft above mean sea level (Corps of 

Engineers benchmark). Prior to Mar. 11, 1940, chain or wire-weight gage at Harness 

Pork Bridge 2 miles upstream at datum about 31 ft higher.

Average discharge. 25 years, 213 cfs.

Extremes. Maximum discharge during year, 2,980 cfs Aug. 5 (gage height, 5.18 ft); minimum, 7.2 cfs Jan. 8, result of freezeup (gage height, 1.03 ft).

1928-35, 1938-56: Maximum discharge, 39,000 cfs June 18, 1949 (gage height, 16.1ft), 

from rating curve extended above 3,500 cfs on basis of slope-area determination of peak 

flow; minimum, that of Jan. 8, 1956.

Remarks. Records good except those for periods of ice effect, which are poor. 

Revisions (water years).--WSP 781: 1933(M). WSP 1141: 1940, 1942-43, 1945, 1948(M).

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.1

1.2 

1.4 

1.8 158

2.3

3.0 

4.0 

5.0

355

755

1,580

2,720

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

28

28

27

27

25

27

31

37

33

33

31

30

27

*30

30

30

28

28

28

27

25

25

23

23

20

19

19

20

22

27

27

835

26.9

0.095

0.11

Nov.

23

23

28

28

25

23

25

27

25

27

35

33

30

31

*31

33

30

28

35

31

35

35

35

35

35

35

37

33

31

30

918

30.6

0.108

0.12

Dec.

30

30

28

28

30

*27

28

28

31

31

30

25

b20

b20

b25

22

b23

28

27

19

b!9

19

b20

23

27

23

b20

bl8

b20

b20

15

754

24.3

0.086

0.10

Jan.

b!5 bT5~

b20

22

22

23

25

15

b!7

31

28

30

30

22

b20

28

28

20

*28

25

22

22

23

17

17

b!6

15

16

37

44

Zl

772

24.9

0.088

0.10

Feb.

131

16T

324

410

498

504

1,110

833

*533

380

301

278

278

257

245

225

214

214

241

270

257

229

194

171

161

208

278

241

211

9,360

323

1.14

1.23

Mar.

174

155

149

140

125

*114

108

149

405

370

296

257

241

1,120

2.000

1,020

725

545

466

405

350

314

296

283

261

237

214

197

211

249

253

11,829

382

1.35

1.55

Apr.

225

208

204

200

184

204

1,410

2.000

1,070

707

*527

410

332

270

241

225

208

194

177

164

143

131

128

120

114

103

95

92

87

82

10,255

342

1.21

1.35

May

78

7?

72

72

72

67

78

67

65

61

59

61

59

54

52

*52

46

52

48

46

44

42

44

44

39

39

39

52

70

70

63

1,781

57.5

0.203

0.23

June

65

63

79

108

TS6

*95

82

72

65

59

54

48

44

42

39

37

37

46

70

70

63

56

48

46

50

42

37

31

28

25

1,707

56.9

0.201

0.22

July

203

Tolf

82

72

67

78

67

59

59

50

44

39

37

37

31

28

*28

25

22

2T

57

27

25

35

52

67

59

54

46

44

41

1,636

52.8

0.187

0.21

Aug.

39

46

44

48

771

2,110

1,110

493

292

208

161

131

111

106

103

87

74

63

59

61

67

65

*52

50

44

39

37

35

37

37

41

6,621

214

0.756

0.87

Sept.

33

42

39

37

33

37

33

31

30

28

25

30

28

23

25

27

28

31

*31

27

23

25

23

25

20

1923"

31

35

52

894

29.8

0.105

0.12

Calendar year 1955: Max 12,600 Min 15 Mean 230 Cfsm 0.813 In. 10.99

Water year 1955-56: Max 2,110 Min 15 Mean 129 Cfsm 0.456 In. 6.21

Peak discharge (base, 2,800 cfs). Mar. 14 (11:30 p.m.) 2,920 cfs (5.13 ft); Aug. 5 (5 p.m.) 2,980 

cfs (5.18 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by lee.
POTOMAC RIVER BASIN 483

South Branch Potomac River near Springfield, W. Va.

Location. Lat 39°26'49", long 78°39'16", on left bank at highway bridge 2 miles east of 

Springfield, Hampshire County, and 13 miles upstream from confluence with North Branch.

Drainage area.--1,471 sq mi.

Records available.--June 1894 to February 1896, June 1899 to February 1902, August 1903 

to July 1906, August 1928 to September 1956.

Gage. Water-stage recorder. Datum of gage is 562.02 ft above mean sea level, datum of 

 1929. June 1894 to February 1896 wire-weight gage at Baltimore & Ohio Railroad bridge 

ll£ miles upstream at different datum. June 26, 1899, to Feb. 2, 1902, wire-weight 

gage at highway bridge 10 miles upstream at different datum. Aug. 28, 1903, to 

July 14, 1906, chain gage at present site at different datum. Aug. 8 to Sept. 24, 1928, 

chain gage at present site and datum.

Average discharge. 32 years (1899-1901, 1903-5, 1928-56), 1,267 cfs.

Extremes . Maximum discharge during year, 13,000 cfs Mar. 15 (gage height, 11.51 ft); 

minimum, 29 cfs Jan. 28 (gage height 0.40 ft), result of freezeup.

1894-96, 1899-1902. 1903-6, 1928-56: Maximum discharge, 143,000 cfs Mar. 18, 1936 

(gage height, 34.2 ft), by slope-area determination of peak flow; minimum, that of 

Jan. 28, 1956; minimum daily, 56 cfs Aug. 3-6, 13, 1930.

Maximum stage known prior to 1928, about 34 ft in November 1877, from floodmarks 

(discharge, 140,000 cfs).

Remarks. Records good except those for periods of ice effect, which are poor. 

Revisions (water years ). WSP 800: 1932 (M).

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Dec. 31 Dec. 31 to Sept. 30

1.16

1.5

1.9

147

315

605

0.96 

1.5 

2.0 

2.5

131

360

695

1,120

5.0

10.0

11.0

3,560

10,300

12,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

196

188

184

175

175

184

188

188

196

205

205

205

188

184

192

192

*201

220

210

192

184

175

175

175

166

151

147

151

155

175

166

5,688

183

0.124

0.14

Nov.

166

158

162

158

155

151

155

162

162

166

188

205

230

240

285

354

*334

303

341

334

328

328

303

315

465

565

480

415

360

303

8,271

276

0.188

0.21

Dec.

b240

240

240

255

367

443

422

387

354

348

328

b280

b240

b200

205

b!90

bl80

240

188

166

188

166

162

171

184

b200

b350

b420

380

230

220

8,184

264

0.179

0.21

Jan.

b270

b270

270

274

b250

b250

b220

b200

b!60

208

242

238

234

b210

b!80

b200

192

176

242

208

200

196

 ISO

b!70

b!60

150

140

131

204

494

2,600

9,119

294

0.200

0.23

Feb.

1,840

1,570

5,970

4,510

4,030

4,270

7,140

5,970

3,910

2,900

2,400

2,400

*2,300

1,980

1,840

2,110

2,200

3,120

4,270

3,560

2,700

2,160

1,800

1,520

1.440

1,930

2,500

2,160

2,020

86,520

2,983

2.03

2.19

Mar.

1,700

1,520

1,440

1,390

1,260

1.210

1,210

1,480

2,500

2,700

2,200

1,930

1,980

4,550

11,000

6,620

5,110

3,910

3,340

3,010

2,600

2,400

2,350

2,250

2,300

2,110

2,020

1,980

2,350

3,230

'2 , 900

86,550

2,792

1.90

2.19

Apr.

2,400

2,020

1,980

2,110

1,930

1,750

6,460

9 , 980

6,620

4,510

3,560

2,900

2,450

2,060

1,840

*1,750

1,660

1,570

1,480

1,340

1,300

1,210

1,210

1,210

1,210

1,110

1,070

1,030

967

 

71,610

2,387

1.62

1.81

May

864

831

815

823

823

759

743

898

831

759

719

727

994

*940

807

727

680

695

831

791

711

658

605

703

864

759

703

1,420

3,910

2,200

1,570

30,160

973

0.661

0.7f.

June

1,260

1,300

1,880

3,450

2,350

1,750

1,390

1,100

898

775

680

*582

496

451

451

427

496

940

1,050

872

743

672

735

545

469

427

382

345

310

286

27,514

917

0.623

0.70

July

274

421

427

415

612

2,250

1,120

727

575

635

560

445

371

330

310

301

296

256

238

256

256

256

247

283

296

360

469

398

489

398

360

14,631

472

0.321

0.37

Aug.

335

296

296

457

531

7,650

6.120

3,670

2,160

1,48O

1,100

847

688

598

552

590

*482

388

345

393

*695

958

751

545

427

345

325

301

335

635

510

36,805

1,187

0.807

0.93

Sept.

560

612

538

388

320

292

296

283

256

242

212

265

229

216

208

220

212

270

310

242

229

200

192

200

212

200

*204

242

270

306

8,426

281

0.191

0.21

Calendar year 1955: Max 43,800 Min 132 Mean 1,404 Cfsm 0.954 In. 12.95

Water year 1955-56: Max 11,000 Mln 131 Mean 1,075 Cfsm 0.731 In. 9.95

Peak discharge (base, 10,000 efs).--Mar. 15 (9 a.m.) 13,000 cfs (11.51 ft); 

10,500 cfs (10.13 ft); Aug. 7 (12:30 a.m.) 12,600 cfs (11.26 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Apr. 8 (4 a.m.)
484 POTOMAC RIVER BASIN

Sawpit Run near Oldtown, Md.

Location. Lat 39°32'50", long 78 b 33'20", on left bank 900 ft upstream from bridge on

State Highway 51, 1.0 mile upstream from mouth, and 3.0 miles east of Oldtown, Allegany 

County.

Drainage area. 5.0 sq mi, approximately.

Records available. October 1947 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 574.06 ft above mean 

sea level, datum of 1929.

Average discharge. 9 years, 4.26 cfs.

Extremes. Maximum discharge during year, 164 cfs June 18 (gage height, 2.95 ft); no flow 

for part of Jan. 2, result of freezeup.

1947-56: Maximum discharge, 770 cfs Oct. 15, 1954 (gage height, 4.72 ft), from 

rating'curve extended above 110 cfs on basis of slope-area determination of peak flow; 

no flow at times each year.

Remarks. Records good except those for periods of ice effect or backwater, which are 

fair, and those for periods of no gage-height record, which are poor.

Rating tables, water year 1955-56, except periods of ice effect or backwater (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 7 Apr. 8 to Sept. 30

1.1

1.2

1.3

1.4

1.5

1.6

0.01 

.05 

.18 

.46

1.1

2.3

1.7

1.8

1.9

2.0 

2.2 

2.5

4.8

8.7

14

21

40

81

1.14

1.2

1.3

1.4

1.5

1.6

0.02 

.05 

.16 

.42 

.96

2.0

1.7

1.8 

2.0

2.2

2.3

4.3

8.3

20

38

50

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

0.05

.04

^03 

.03

.03

.06

.06

.05

.05

.04

.04

.03

.03

.08

.09

*.05

.04

.04

.04

.03

.03

.03

.03

.03

.03

.03

.03

.03

.04

.05 

.05

1.29

0.042

0.0084

0.01

Nov.

0.04

T04

.05 

.06

.05

.05

.06

.09

.08

.09

.29

.46

7?B- .66

.42

.50

.46

.32

.38

*.42

.46

.42

.38

.35

.26

.24

.20

.20

.10

*.09

7 .68

0.256

0.051

0.06

Dec.

0.07

.10

.16 

.29

.52

.22

.14

.14

.14

.12

.09

.07

.06

.06

.06

.05

.04

.04

.04

*.03

.02

732

.03

.04

.06

.05

*.04

.02

.02

.04 

.03

2.61

0.084

0.017

0.02

Jan.

0.03

^01

.06 

.10

.10

*.04

.03

*.02

.02

.04

*.20

.20

.15

.10

.10

.15

.12

.10

.09

.10

.11

.11

.10

.08

.10

.14

b.12

b.10

b.40

9.0 

b5.4

17.42

0.562

0.112

0.13

Feb.

2.6

13

15 

11

15

b5037"

15

12

10

14

17

8.7

5.8

5.4

4.5

5.4

46

20

9.8

*5.8

4.2

3.1

2.3

674

7.8

6.1

5.8

*3.6

362.3

12.5

2.50

2.69

Mar.

3.0

3.1

2.4

2.1

1.7

1.7

5.1

21

*11

6.5

5.1

5.1

5.4

72

TO

15

11

11

9.2

12

12

12

12

10

6.1

5.1

3.9

3.3

5.1

*5.4

313.1

10.1

2.02

2.33

Apr.

3.6

3.6

7.8 

10

6.5

9.4

*77SBis

7.9

5.5

4.0

3.0

2.5

2.3

2.3

1.9

1.6

1.4

1.3

1.1

T7T

1.4

1.7

2.3

2.3

2.2

2.0

1.9

 1.6

217.2

7.24

1.45

1.62

May

1.3

1.5

1.9 

1.6

1.4

1.3

1.9

1.5

1.3

1.3

1.2

1.9

2.0

1.7

1.4

1.4

1.2

1.3

1.0

.84

.78

.72

1.6

1.2

.90

.84

16

18

7.1

3.8 

2.8

82.78

2.67

0.534

0.62

June

3.0

3.5

8.3

5.1

3.0

*2.2

1.6

1.3

1.1

1.0

.96

.66

.78

1.4

.84

.60

.78

41

21

5.9

9.6

9.3

7.1

3.2

2.2

3.6

10

3.5

1.9

1.3

155.72

5.19

1.04

1.16

July

0.90

.72

1.0 

3.6

5.1

5.1

2.8

1.6

1.3

.90

.72

.42

.33

.36

.16

.09 *7ro

.55

.20

.42

.42

.20

.10

.58

.55

.20

.33

.22

.42

.24 

*.10

29.73

0.959

0.192

0.22

Aug.

0.06

.05

.04 

.04

.18

*8.1

6.7

4.7

2.0

1.3

.90

.60

.42

.50

.36

.18

.09

.06

.04

.82

4.0

1.6

.96

.66

.39

.22

.16

.27

.13

.14 

*.10

35.77

1.15

0.230

0.27

Sept.

0.08

.07

.05 

.04

.03

.03

.04

.02

752

.02

.02

.03

.03

.02

.04

.13

.07

.04

.04

.04

.04

.04

.04

.04

.04

.03

.23

.78

746

.30

2.86

0.095

0.019

0.02

Calendar year 1955 : Max 164 Min 0 Mean 4.76 Cfsm 0.952 In. 12.94

Water year 1955-56 : Max 77 Min 0.01 Mean 3.36 Cfsm .672 In. 9.15

Peak discharge (base, 1OO cfs). P

Apr. 7 (7 p.m.) 138 cfs (Z.82 ft); J

eb. 6 (6 p.m.) about 115 cfs; Mar. 14 (2 p.m.) 140 cfs (2.83ft); 

une 18 (6:30 p.m.) 164 cfs (2.95 ft).

Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Dec. 12 to Jan. 25; discharge estimated on basis of weather records, 

5 discharge measurements, engineers' notes, and records for nearby stations. Backwater from unknown 

cause Oct. 1, Oct. 17 to Nov. 11.
POTOMAC RIVER BASIN 485

Potomac River at Paw Paw, W. Va.

Location. Lat 39°32'13" , long 78°27"28" , on left bank 250 ft upstream from bridge on 

Maryland State Highway 51 at Paw Paw, Morgan County, and 3.3 miles downstream from 

Little Cacapon River.

Drainage area. 3,109 sq mi.

Records available. October 1938 to September 1956.

Gage. Water-stage recorder. Datum of gage is 487.88 ft above mean sea level (Corps 

of Engineers benchmark). Prior to Mar. 25, 1939, wire-weight gage at bridge 250 ft 

downstream at same datum.

Average discharge.--18 years, 3,152 cfs.

Extremes.--Maximum discharge during year, 30,100 cfs Apr. 8 (gage height, 19.03 ft); minimum, 308 cfs Jan. 24.

1938-56: Maximum discharge, 111,000 cfs Oct. 16, 1942 (gage height, 38.36 ft); minimum, 216 cfs Sept. 11, 1944.

Maximum stage known, 54.0 ft Mar. 18, 1936 (discharge, 240,000 cfs, from rating 

curve extended above 85,000 cfs on basis of slope-area determination of peak flow at 

site 5 miles upstream at Okonoko).

Remarks. Records excellent except those below 500 cfs, which are good, and those for 

periods of ice effect, which are fair. Low flow affected by Stony River Reservoir 

(see p. 463) and, since December 1950, by Savage River Reservoir (see p. 466).

Rating table, water year 1955-56, except periods of ice effect 

height, in feet, and discharge, in cubic feet per second)

3.3 

3.5 

4.0

5.0

330

425

700

1,420

6.0

a.p

12.0

19.0

2,350

4,850

11,600

30,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

(t)

Oct.

508

480 

465

445 

435

435

470

480

470

480

470

465

450

455

475

508

530

519

508

475

465

450

460

435

420

395 

380

395

410

410

425

14,168

457

_

_

-66.0

Nov.

*415

415 

405

405 

395

385

390

400

400

405

435

486

519

618

682

682

712

866

814

766

706

682

676

706

957

1.100 

937

826

706

*634

18,525

618

_

_

-6.6

Dec.

519

524 

530

602 

892

999

898

808

742

724

664

612

b600

b580

568

b580

b560

b620

b600

b560

b560

b500

b500

b540

634

694

852

b780

b740

b640

b620

20,242

653

_

-

-47.2

Jan.

b640

b560 

b500

530 

492

475

486

b400

b380

b370

b450

519

508

450

b420

475

460

395

445

b480

445

425

420

352

b340

b380 

b420

b400

b450

2,330

»9.190

24,587

793

_

_

+8.2

Feb.

6,320

4,840 

15,500

12,600 

9,620

11,400

18.800

14,300

9,400

8,350

7,660

8,500

7,260

5,860

5,310

5,800

5,840

10,900

16,300

10,600

8,830

7,070

5,840

4,150

3,640

6,480 

6,450

6,030

*5,920

249,570

8,606

_

_

+3.6

Mar.

5,000

4,490 

4,150

3,620 

3,120

2^830

2,920

4,890

6,300

6,400

5,470

4,890

4,540

8,970

23.900

15,300

11,500

9,360

7,940

6,990

6,390

6,140

6,120

6,340

6,600

5,880 

5,600

5,330

6,150

*8,570

8,230

213,930

6,901

_

_

+90.9

Apr.

6,88?

5,840 

5,600

7,550 

6,510

5,400

18,000

27.200

17,200

11,900

9,040

6,930

5,700

4,820

4,210

3,880

3,480

3,240

3,040

2,810

2,680

2,530

2,460

2,520

2,570

2,520 

2,450

2,360

2,240

2 3/30

183,690

6,123

_

_

+ 150

May

2,010

1.910 

2,910

3,820 

3,420

2,950

2,870

4,150

3,400

2,900

2,710

2,580

3,250

3,560

2,900

2,650

2,590

2,460

2,890

2,620

2,300

2,080

2,000

2,820

2,660

2,210 

2,220

8,320

10.900

6,510

*4,960

105,530

3,404

_

-

+41.5

June

4,050

4,120 

4,910

7.520 

5,780

4,420

3,490

2,820

2,360

2,120

1,830

1,560

1,360

1,360

1,700

1,560

1,500

2,670

4,100

2,960

2,460

2,350

2,770

1,920

1,570

1,530 

1,920

1,900

1,530

1,190

81,330

2,711

_

_

-3.4

July

999

904 

1,100

1,280 

1,900

4,060

2,980

2,010

1,550

1,310

1,280

1,060

892

796

760

748

754

971

892

3,000

2,500

1,850

1,330

1,250

1,370

1,190 

1,180

1,270

1,420

1,950

1,510

46,066

1,486

_

-

+0.07

Aug.

1,090

924 

820

846 

1,020

15,300

18.800

8,180

4,960

3,390

2,540

1,950

1,600

*1,370

1,260

1,250

1,110

950

826

878

3,070

4,840

3,250

2,050

1,450

1,190 

1,030

978

1,490

1,610

1,520

91,542

2,953

_

-

-34.8

Sept.

1,240

1.460 

1,410

1,090 

930

852

1,100

1,080

878

790

730

718

911

796

712

892

1,010

930

930

904

766

688

640

652" 624

658 

676

742

859

918

26,586

886

_

_

-83.0

Calendar year 1955: Max 76,700 Min 347 Mean 3,319 Cfsm 1.07 In. 14.52 t -12.7

Water year 1955-56: Max 27,200 Min 340 Mean 2,939 Cfsm 0.945 In. 12.83 t +4.4

Peak discharge (base, 20,000 cfs). Feb. 3 (2:30 p.m.) 20,000 cfs (15.49 ft); Mar. 15 (12:30 p.m.)

27,200 cfs (18.05 ft); Apr. 8 (3 to 5 a.m.) 30,100 cfs (19.03 ft); Aug. 7 (2 a.m.) 26,600 cfs

(17.85 ft).

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Stony River and Savage River 

Reservoirs. Records furnished by West Virginia Pulp and Paper Co. and Corps of Engineers, respectively.

b Stage-discharge relation affected by ice.

505690 O - 59 - 3Z
486 POTOMAC RIVER BASIN

Cacapon River near Great Cacapon, W. Va.

Location. Lat 39°34'43", long 78°18'34", on left bank at Rock Ford, 3 miles southwest of 

Great Cacapon, Morgan County, and 6^ miles upstream from mouth.

Drainage area. 677 sq mi.

Records available. December 1922 to September 1956.

Gage. Water-stage recorder. Datum of gage is 456.78 ft above mean sea level (Corps of 

Engineers benchmark). Prior to Nov. 10, 1933, staff gage at same site and datum.

Average discharge. 33 years (1923-56), 572 cfs.

Extremes.--Maximum discharge during year, 6,800 cfs Mar. 15 (gage height, 9.04 ft); mlnimum daily, 45 cfs Dec. 21-23, Jan. 28.

1922-56: Maximum discharge, 87,600 cfs Mar. 18, 1936 (gage height, 30.1 ft), from 

rating curve extended above 52,000 cfs on basis of logarithmic plotting; minimum, 

35 cfs Sept. 21, 22, 1932 (gage height, 0.35 ft).

Maximum stage known prior to 1923, 24.7 ft in May 1889, from floodmarks (discharge, 

57,500 cfs).

Remarks. Records good except those for period of ice effect, which are poor.

Revisions (water years). WSP 800: 1924(M). WSP921: Drainage area. WSP951: 1936-37.

Rating table, water year 1955-56, except period of Ice effect ( 

height, In feet, and discharge, In cubic feet per second)

1.4 

2.0

83

193

350

3.0 

5.0 

7.0 

9.0

780

1,940

3,750

5,790

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

109

106

103

101 

1OO

101

1O9

112

112

116

123

118

109

118

125

123

118

*11£

106

101

100

98

96

95

89

89

86

86

86

88

90

3, £25

104

0.154

0.18

Nov.

90

94

96 

94

92

92

94

94

95

108

111

118

128

138

136

128

132

140

140

132

132

128

127

125

123

118

114

109

104

3,422

114

0.168

0.19

Dec.

104

TOT

95

100 

100

103

104

103

101

100

90

90

90

80

70

60

50

50

50

*47

45

45

45

50

60

60

55

50

50

50

50

2,248

72.5

0.107

0.12

Jan.

55

60

60

60 

60

60

55

50

50

55

60

70

80

70

65

60

60

60

70

60

60

58

55

*53

50

50

48

4550"

70

400

2,159

69.6

0.103

0.12

Feb.

600

581

1,890

5.540 

1,680

1,410

2,920

3,150

1,940

1,410

1,140

1,200

1,110

905

780

805

780

1,110

1,680

1,320

1,000

805

635

527

484

581

590

492

 440

35,305

1,217

1.80

1.94

,Mar.

392

350

335

323 

306

288

285

350

413

40£

371

360

*378

867

5.500

3,250

2,240

1,800

1,560

1,380

1,200

1,140

1,170

1,200

1,140

980

880

755

705

855

955

31,930

1,030

1.52

1.75

Apr.

880

755

705

830 

780

680

1,540

5.790

3,550

£,160

1,620

1,230

1,030

855

755

680

635

545

472

424

378

341

329

329

350

368

344

315

301

288

£9,259

975

1.44

1.61

May

275

262

264

267 

262

244

260

262

296

296

275

267

275

504

*448

357

306

290

280

285

250

224

220

200

182

173

186

227

335

354

298

8,624

278

0.411

0.47

June

272

277

360

452 

413

350

296

250

217

191

173

165

147

134

125

116

111

134

151

121

132

165

147

143

134

116

103

96

89

83

5,663

189

O.279

0.31

July

78

76

75

73 

90

143

438 262"

*203

195

136

114

103

94

86

79

79

80

80

89

103

108

111

175

157

157

130

116

118

103

92

3,943

127

0.188

0.22

Aug.

84

80

78

ft

121

1.050

930

500

329

242

180

147

130

118

109

101

96

90

95

132

184

220

173

138

114

100

94

86

82

82

6,050

195

0.288

0.33

Sept.

76

76

94

95 

103

98

loo

106

123

100

90

84

80

103

116

109

101

96

101

98

90

82

78

74

75

74

*79

98

176

244

3,017

101

0.149

0.17

Calendar year 1955: Max 34,400 Mln 45 Mean 772 Cfsm 1.14 In. 15.50

Water year 1955-56: Max 5,790 Mln 45 Mean 368 Cfsm O.544 In. 7.41

Peak discharge (base. 3.90O cfs). Feb. 3 (ll:3O p.m.) 4.730 cfs (7.74 ft): Mar. 15 (1 p.m.) 6.8OO

cfs (9.04 ft); Apr. 8 (1:30 p.m.} 6,460 cfs (8.78 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 11 to Feb. 1.
POTOMAC RIVER BASIN 487

Little Tonoloway Creek near Hancock, Md.

Location. Lat 39e 42'45", long 78°13'55", on right bank at downstream side of highway 

bridge , 100 ft downstream from unnamed tributary and 2.8 miles northwest of Hancock, 

Washington County.

Drainage area. 16.9 sq mi.

Records available. August 1947 to September 1956. Prior to October 1951, published as 

Tonoloway Creek near Hancock.

Gage. Water-stage recorder and concrete control. Datum of gage is 457.51 ft above mean 

sea level, datum of 1929.

Average discharge. 9 years, 17.1 cfs.

Extremes. Maximum discharge during year, 268 cfs Apr. 7 (gage height, 3.38 ft); minimum 

daily, 0.2 cfs Oct. 4, 5, Dec. 22, 23, 28, 29, Jan. 2.

1947-56: Maximum discharge, 1,470 cfs Oct. 15, 1954 (gage height, 7.10 ft), from 

rating curve extended above 440 cfs on basis of slope-area determination of peak flow; 

no flow at times .

Remarks . Records fair except those for periods of backwater from unknown cause, doubtful 

gage-height record, shifting control, or those above 100 cfs, which are poor.

Rating tables, water year 1955-56, except periods of backwater from unknown cause or 

shifting control (gage height, In feet, and discharge, In cubic feet per second)

Apr. 8 to Aug. 7 Aug. 8 to Sept. 30

shifting 

Oct. 1 to Apr.

0.9

1.0

1.1

1.2

0.2

1.3

4.3

10

1.4 

1.8 

2.3

28

73

146

1.02

1.1

1.2

1.3

1.4

0.8

2.0

4.2

7.4

12

1.6 24

1.8 39

2.2 79

2.6 129

1.0 0.5

1.1 1.4

1.2 2.9

1.3 4.7

1.4 7.4

1.6 16

1.9 36

2.2 64

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

0.7

.4

.3

.2

.2

.7

.8

.8

.7

.6

.5

.4

.4

4.7

4.3

*2.2

1.7

1.5

1.4

1.2

1.0

.9

.8

.7

.7

.6

.6

.6

.7

l!o

32.1

1.04

0.062

0.07

Nov.

0.8

.7

.7

.7

.6

.6

.7

.7

.7

1.0

2.0

2.8

2.5

1.7

1.3

1.5

1.5

1.3

1.5

1.7

1.7

2.0

2.0

2.0

1.5

1.5

1.3

1.3

 1.1

1.1

40.5

1.35

0.080

0.09

Dec.

1.0

1.1

1.1

1.3

1.5

1.3

1.0

1.0

1.0

1.0

.8

.7

.6

.6

.6

.5

.4

.4

.5

*.4

.3

.2

72

.3

.8

.7

.6

.2

.2

.4

.3

21.0

0.68

0.040

0.05

Jan.

0.3

.2

.3

.6

.7

.7

.7

.5

.4

.6

*2.0

2.2

1.5

1.0

.9

.9

.8

.7

.6

.7

.8

.8

.7

.6

.5

.6

.5

.4

1.1

*23

*Ta w ±o

63.3

2.04

0.121

0.14

Feb.

9.4

19

30

20

17

84

~136 F55

48

45

46

47

33

27

25

20

20

106

67

36

26

18

14

12

17

19

18

17

14

1,056.4

36.4

2.15

2.32

Mar.

12

13

12

10

9.4

8.7

15

28

28

24

22

20

18

»138

93

66

48

40

37

39

45

49

54

55

42

36

29

25

28

30

31

1,105.1

35.6

2.11

2.43

Apr.

28

26

41

53

42

*39

*133

124

45

30

23

20

16

14

14

13

11

9.7

8.3

7.4

'678 6.8

7.9

8.8

9.7

8.8

9.2

9.2

9.2

8.3

782.1

26.1

1.54

1.72

May

7.4

10

12

11

11

10

14

TT

10

11

10

9.7

9.2

*7.9

7.4

8.8

6.8

6.8

5.5

4.2

4.0

3.8

4.9

3.8

3.1

2.9

11

*9.7

6.1

5.2

4. 6

242.8

7.83

0.463

0.53

June

5.5

5.8

7.1

5.5

»4.6

4.0

3.6

3.1

2.9

2.6

1.8

1.5

1.1

1.1

1.0

.8

3.6

17

13

6.5

6.1

4.9

4.0

3.6

2.4

2.0

3.1

1.8

1.1

1.0

122.1

4.07

0.241

0.27

July

0.8

176

10

10

14

78

47

32

39

23

15

9.7

8.3

6.1

3.8

*3.6

14

15

9.7

11

13

19

23

20

16

11

9.2

6.1

4.0

3.1

2.2

478.2

15.4

0.911

1.05

Aug.

2.0

1.6

1.3

11 1.2

43

113

d64

d31

d20

dll

d8.1

*6.5

5.6

4.5

3.8

3.2

2.9

2.7

7.8

12

5.6

4.3

3.0

2.2

2.0

1.8

2.1

1.5

1 8 

2io

382.5

12.3

0.728

0.84

Sept.

1.4

1.6

1.2

1.0

1.0

1.2

*1.2

.7

.6

.6

.6

1.4

1.0

.9

5.9

4.7

2.7

2.0

1.4

1.3

1.0

1.0

1.0

1.0

.8

.8

3.1

5.1

2.9

2.2

51.3

1.71

0.101

0.11

Calendar year 1955: Max 454 Mln 0 Mean 11.4 Cfsm 0.675 In. 9.13

Water year 1955-56: Max 138 Mln 0.2 Mean 12. 0 Cfsm 0.710 In. 9.62

Peak discharge (base. 200 cfs).--Feb. 6 (4 p.m.) 200 cfs (2.62 ft); Mar. 14 (2 p.m.) 218 cfs 

(3.12 ft); Apr. 7 (6:30 p.m.) 268 cfs (3.38 ft); July 6 (3 p.m.) 243 cfs (3.30 ft); Aug. 7 (12 m.) 

218 cfs (3.16 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of partly reconstructed gage-height 

graph and records for nearby stations.

Note. Backwater from unknown cause Oct. 19 to Nov. 8, Jan. 12-30. Shifting-control method used 

Mar. 14, 15, Apr. 7 to May 14.
488 POTOMAC RIVER BASIN

Potomac River at Hancock, Md.

Location. Lat 39°41'49", long 78°10'39", on left bank 0.2 mile downstream from Little 

Tonoloway Creek, half a mile downstream from bridge on U. S. Highway 522 at Hancock, 

Washington County, and 1.1 miles upstream from Tonoloway Creek [formerly called Great 

or Big Tonoloway Creek).

Drainage area. 4,073 sq mi.

Records available. October 1932 to September 1956. Gage-height records collected at same 

site since June 1925 are contained in reports of U. S. Weather Bureau.

Gage.--Water-stage recorder. Datum of gage is 383.46 ft above mean sea level, adjustment 

of 1912. Oct. 1, 1932, to Aug. 27, 1934, chain gage and Aug. 28, 1934, to Jan. 5, 1935, 

Mar. 18, 1936, to Jan. 20, 1937, wire-weight gage, on former highway bridge just upstream at same datum. Jan. 6, 1935, to Mar. 18, 1936, water-stage recorder at present 

site and datum.

Average discharge.--24 years, 4,083 cfs.

Extremes.--Maximum discharge during year, 40,300 cfs Apr. 8 (gage height, 17.82 ft); minimum, 315 cfs Dec. 16 (gage height, 2.35 ft), result of freezeup.

1932-56: Maximum discharge, 340,000 cfs Mar. 18, 1936 (gage height, 47.6 ft), from 

rating curve extended above 120,000 cfs on basis of slope-area determination of peak 

flow; minimum observed, 180 cfs Oct. 4, 1932 (gage height, 2.01 ft).

Maximum stage known prior to 1932, about 40 ft in May 1889 (discharge, about 

220,000 cfs) .

Remarks.--Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Slight regulation at low flow from powerplants upstream. Low 

flow affected slightly by Stony River Reservoir (see p. 463) and since December 1950 

by Savage River Reservoir (see p. 466).

Revisions (water years). WSP 781: 1933(M). WSP 801; Drainage area.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.5 

3.0 

4.0 

6.0

395

790

1,830

4,800

10.0

15.0

18.0

13,500

29,300

41,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

i fj

Oct.

686

614

623

589

573

597

597

a620

a640

a640

a630

614

605

650

668

632

714

695

668

641

614

597

557

597

557

533

518

490

462

541

541

18,703

605

-

-

-66.0

Nov.

541

533

533

511

485

490

525

497

497

497

533

589

632

704

890

910

920

930

1,110

1,080

1,000

930

940

880

980

1,250

1,550

1,170

*1,000

880

23,785

793

-

-

-6.6

Dec.

800

704

677

695

800

1,100

1,190

1,090

990

920

880

760

720

714

700

600

660

740

660

620

620

580

560

600

660

740

860

840

800

720

700

23,700

765

-

-

-47.2

Jan.

660

640

580

620

640

600

560

5OO

480

520

580

680

700

600

540

600

580

520

560

600

560

520

500

470

420

450

500

490

520

700

6.400

23,290

751

-

-

+8.2

Feb.

8,910

6,350

11,500

18 , 500

12,100

12,400

21,500

*21.600

14,100

11,100

10,100

1O.6OO

10,100

8,090

6,850

6,710

7,270

9,570

19,900

15,000

11,100

9,180

7,390

5,970

4.550

5,830

7,920

6,990

6,910

308,070

10,620

-

-

+3.6

Calendar year 1955: Max 107,000 Mln 431

Mar.

6,180

5,380

4,980

4,570

5,930

3,520

5.490

4,930

6,990

7,570

6,830

5,950

5,560

7,500

27.500

24,400

16,000

12,700

10,700

9,570

8,450

8,090

8,130

8,300

8,550

7,880

7,090

6,670

6,670

10^300

266,770

8,605

-

-

+90.9

Apr.

8,860

7,490

6,910

8,950

8,930

*7,250

15,200

57.800

26,500

16,800

12,600

9,800

7,840

6,460

5,540

5,050

4,620

4,200

3,910

3,630

3,510

5,160

3,040

3,070

3,150

5,260

3,130

3,020

2,780

2,670

236,890

7,896

-

-

+150

May

2,590

2.440

2,510

4,180

4,080

3,630

3,440

3,700

4,580

3,730

3,540

3,140

3,060

4,360

3,930

3,380

3,180

3,010

5,070

5,540

2,920

2,640

2,460

2,560

3,240

2,810

2,560

4,850

12 . 900

ejiao

120,600

5,890

-

-

+41.5

June

5,120

4,570

4,940

7.610

*7,410

5,650

4,490

5,660

5,080

2,620

2,400

2,060

1,820

1,690

1,660

1,950

1,910

2,140

4,390

4,070

3,060

2,970

5,010

2,780

2,120

1,810

1,940

2,250

2,050

1,640

96,830

3,228

-

-

-3.4

July

1,370

1,200

1,160

1,390

1,810

2,950

5,520

3,300

2,620

2,020

1,710

1,580

1,300

1,100

980

"980 950

1,240

1,330

1,200

3,980

2,780

2,170

1,800

1,750

1,740

1,570

1,510

1,590

1,660

2 , 260

58,500

1,887

-

-

+0.07

Mean 4,372 Cfsm 1.07 In. 14.57

Aug.

1,610

1,280

1,100

980

1,100

4,290

24.500

12,900

7,270

4,890

3,570

2,710

*2,200

1,840

1,630

1,520

1,500

1,320

1,160

1,110

1,420

5,090

4,600

5,500

2,160

1,650

1,440

1,270

1,200

1,790

1,840

104,040

5,556

-

-

-54.8

Sept.

1,620

1,460

1.700

1,600

1,270

1,130

1,060

1,280

1,270

1,050

950

910

850

1,090

1,000

980

1,200

1,230

1,130

1,160

1,070

910

800

800

724

742

810

910

960

1 . 280

32,946

1,098

-

-

-83.0

t -12.7

Water year 1955-56: Max 37,800 Mln 420 Mean 3,591 Cfsm 0.882 In. 12.00 t +4.4

Peak discharge (base. 23,000 efs).--Feb. 4 (1 a.m.) 23.000 cfs (13.18 ft); Feb. 7 (9 p.m.) 24,900 

cfs (13.74 ft): Mar. 15 (7:30 p.m.) 34,600 cfs (16.39 ft); Apr. 8 (11 a.m.) 40,300 cfs (17.82 ft); 

Aug. 7 (1 p.m.) 27,700 cfs (14.53 ft).

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second, In Stony River and Savage River Reservoirs. Records furnished by West Virginia Pulp & Paper Co. and Corps of Engineers, respectively.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

stations.

Note.--Stage-discharge relation affected by Ice Nov. 30, Dec. 1, 11-13, Dec. 15 to Jan. 31 (no 

gage-height record Jan. 5-10).
POTOMAC RIVER BASIN 489

Back Creek near Jones Springs, W. Va.

Location. Lat 39°30'43", long 78°02'15", near right bank on upstream side of highway 

bridge, 1.3 miles southeast of Tomahawk, 3.5 miles northeast of village of Jones 

Springs, Berkeley County, and 9 miles upstream from Tilhance Creek.

Drainage area. 243 sq mi.

Records available.--July 1928 to September 1931 (published as "near Hedgesville"), August 

1938 to September 1956.

Gage.--Wire-weight gage and crest-stage indicator; gage read twice daily, oftener during 

high stages. Datum of gage is 416.42 ft above mean sea level (Corps of Engineers 

benchmark). Prior to Sept. 30, 1931, chain gage at highway bridge 1.3 miles west of 

Hedgesville and 5 miles downstream at different datum.

Average discharge . 18 years (1938-56), 200 cfs.

Extremes.--Maximum discharge during year, 3,880 cfs Mar. 15 (gage height, 10.40 ft, from 

floodmark); minimum daily, 14 cfs Dec. 22, 23, Jan. 2, 7-9, June 30, Sept. 1, 11, 14, 

23.

1928-31, 1938-56: Maximum discharge, 22,400 cfs Oct. 15, 1942 (gage height, 25.17 

ft, from floodmarks), from rating curve extended above 6,200 cfs on basis of currentmeter measurement of 14,500 cfs made at Hedgesville; minimum observed, 0.9 cfs Aug. 6, 

1930.

Maximum stage known prior to October 1942, 25.0 ft Mar. 17 or 18, 1936, from floodmarks (discharge, 22,000 cfs, from rating curve extended above 6,200 cfs).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor.

Revisions (water years). WSP 851: 1930(M).

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.6

1.7 

1.9 

2.1

2.5 

3.0 

8.0 

9.0

111

230

2,450

3,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

a20

a20

a20

a20

20

21

23

26

25

a23

a21

a20

a20

a25

335.

a35

a33

a31

a29

*27

325

23

21

23

21

17

18

21

21

24

24

732

23.6

0.097

0.11

Nov.

26

26

28

26

25

26

26

25

27

34

47

46

53

43

38

*36

34

33

34

34

35

38

41

40

38

36

34

31

28

24

1,012

33.7

0.139

0.15

Dec.

24

23

24

25

27

27

25

24

22

22

21

24

20

16

20

b!9

18

18

17

*16

b!5

b!4

b!4

15

17

16

b!5

b!5

16

17

16

6O2

19.4

0.080

0.09

Jan.

15

b!4

15

15

16

15

14

b!4

b!4

16

20

17

84

37

32

39

42

43

37

44

46

34

34

*39

b35

b32

b30

b30

32

58

457

1,350

43.5

0.179

0.21

Feb.

335

318

1,140

830

698

786

1.900

1,140

654

530

430

610

450

*318

335

318

282

610

874

530

370

300

215

174

200

230

174

151

119

15,021

518

2.13

2.30

Mar.

200

98

loo

93

87

83

91

151

174

140

130

120

*162

1,210

2.620

1,100

742

698

570

510

510

510

530

490

370

335

300

230

215

230

13,081

422

1.74

2.00

Apr.

187

174

174

318

248

187

968

2.500

1,010

610

450

352

282

215

187

187

*151

130

120

104

98

85

88

90

106

115

98

85

87

102

9,306

310

1.28

1.42

May

93

83

97

97

87

80

80

79

69

62

56

59

59

56

51

*49

44

46

44

40

38

36

36

33

32

29

54

55

59

44

36

1,763

56.9

0.234

0.27

June

40

42

64

90

62

49

40

54

51

29

27

*26

25

22

20

18

17

25

41

58

59

41

55

28

25

20

21

20

18

14

1,001

55.4

0.137

0.15

July

15

15

15

20

47

665

354

107

63

*48

36

29

27

24

21

20

20

27

34

28

57

140

830 m265

140

90

77

58

43

35

3,504

113

0.465

0.54

Aug.

31

27

25

24

27

71

187

104

77

55

41

35

32

30

28

28

28

24

21

21

*34

66

50

35

27

22

19

18

17

16

15

1,233

39.8

0.164

0.19

Sept.

14

17

29

24

17

17

24

20

16

15

14

15

15

14

16

16

18

*19

17

18

17

16

14

15

21

23

18

56

"577 98

OU

673

22.4

O.O92

0.10

Calendar year 1955: Max 6,OOO Mln 11 Mean 198 Cfsm 0.815 In. 11.09

Water year 1955-56: Max 2,620 Mln 14 Mean 135 Cfsm 0.556 In. 7.53

Peak discharge (base. 2.500 cfs). Mar. 15 (5 a.m.) 3,880 cfs (10.40 ft); Apr. 8 (9 a.m.) 2,780 

cfs (8.6O ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

stations.

b Stage-discharge relation affected by Ice.
490 POTOMAC RIVER BASIN

Conococheague Creek at Fair-view, Md.

Location.--Lat 39°42'57", long 77°49'28", on right bank 0.7 mile upstream from highway 

bridge In Fairview, Washington County, 2 miles upstream from Rockdale Run, and 6^ miles 

northwest of Hagerstown.

Drainage area. 494 sq mi.

Records available. June 1928 to September 1956.

Gage. Water-stage recorder. Datum of gage is 391.77 ft above mean sea level, adjustment 

of 1912. Prior to Dec. 6, 1932, chain gage at highway bridge 0.7 mile downstream at 

datum 2.85 ft lower. Dec. 6, 1932, to Oct. 7, 1933, staff gage at site 200 ft downstream from former site at datum 4.84 ft lower than present datum.

Average discharge. 28 years, 576 cfs.

Extremes. Maximum discharge during year, 4,350 cfs Feb. 7 (gage height, 7.59 ft); minimum, 76 cfs Jan. 8 (result of freezeup); minimum daily, 97 cfs Sept. 24.

1928-56: Maximum discharge, 17,100 cfs Nov. 22, 1952 (gage height, 15.16 ft, from 

high-water mark in well); minimum, 22 cfs Dec. 16, 1930; minimum daily, 25 cfs Nov. 28, 

1930.

Maximum stage known, about 16.5 ft sometime in 1889, from information by local residents (discharge, about 22,000 cfs).

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

681 

696 

711 

726 

781

Water 

year

1929 

1930 

1931 

1932 

1935

Date

Apr. 16, 

Oct. 22, 

Apr . 2 , 

May 13 , 

Dec . 1 ,

1929 

1929 

1931 

1932 

1934

Discharge 

(cfs)

7,780 

7,280 

4,500 

4,680 

16,300

Gage height 

(feet)

11.3 

10.8 

7.8 

8.0 

14.8

Remarks.--Records excellent except those for periods of ice effect or doubtful or no gageheight record, which are fair. Low flow partly regulated by small power-plants near 

Mercersburg, Pa.

Revisions. WSP 756: Drainage area. Revised figures of discharge in cubic feet per 

second, for the water year 1930, superseding those published in WSP 696, are given 

herewith:

Nov. 15, 1929............. 483

Month

Water year 1929-30. ......

Cfs-days

169,596

Maximum

6,500

Minimum

38

Mean

687

465

Per square 

mile

.941

Runoff in 

inches

1.84

18.88

12.77

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2 

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

172

165 

137

135

125

129

140 

185

183

158

*151

131

127

843

5.950

1,910

1,080

842

719

592

496

442

390

357

341

329

295

281

274

263

288

15,630

504

1.02

1.18

Nov.

260

244 

231

222

228

199

191 

*202

194

191

234

302

295

277

254

244

361

361

326

318

310

341

345

326

299

281

263

250

b230

b230

8,009

267

0.540

0.60

Dec.

b220

216 

210

216

21O

202

188 

183

180

172

175

b!70

b!70

b!70

b200

b!70

b!60

b!80

b!8o

b!65

b!60

b!60

b!90

b205

b250

b230

b210

b!60

b!50

b!80

b!60

5,772

186

0.377

0.43

Jan.

b!50

b!55 

b!70

b!90

202

188

185 

160

138

228

240

247

240

202

165

162

153

142

153

165

162

140

123

b!20

b!20

b!20

b!20

b!20

b!50

b590

1.210

6,610

213

0.431

0.50

Feb.

*546

532 

1,160

1,150

790

1,130

5.760 

2,370

1,700

1,440

1,500

1,460

1,290

1,050

950

920

820

1,570

1,790

1,570

1,100

925

800

700

720

980

850

720

640

54,333

1,184

2.40

2.58

Mar.

580

560 

550

530

5OO

480

660 

1,310

1,510

1,160

991

1,010

969

2,070

2.480

1,730

1,510

1,510

1,160

1,080

1,100

1,260

1,480

1,550

1,510

1,190

1,050

952

947

991

898

54,878

1,125

2.28

2.65

Apr.

826

772 

1,250

1,970

1,420

*1,220

2,280 

5.450

2,360

1,780

1,450

1,250

1,100

974

898

870

795

725

669

621

575

541

555

597

578

527

509

491

478

469

31,956

1,065

2.16

2.41

May

460

438 

659

602

527

486

500 

509

*435

408

405

599

408

429

574

566

555

357

326

302

292

284

383

326

277

257

288

555

288

500

382

12,149

392

0.794

0.91

June

337

374 

374

353

*284

247

257 

225

207

207

196

194

172

172

172

162

168

196

251

199

185

172

185

421

370

222

188

207

191

165

6,991

235

0.472

0.53

July

151

142 

271

578

546

518

451 

326

267

222

*199

180

168

172

165

144

185

222

183

606

2.450

1,250

751

578

486

408

555

292

257

257

*219

12,957

417

0.844

0.97

Aug.

204

185 

185

172

204

509

42? 

482

341

260

228

196

172

178

165

165

148

146

137

127

244

506

191

165

155

155

125

131

127

127

127

6,444

208

0.421

0.49

Sept.

137

129 

123

125

125

158

198 

175

127

104

115

111

117

108

146

162

178

148

119

119

108

106

106

97

1T5

109

108

144

155

142

3,908

130

0.265

0.29

Calendar year 1955: Max 5,840 Min 92 Mean 5£9 Cfsm 1.07 In. 14.53

Water year 1955-56: Max 3,950 Min 97 Mean 491 Cfsm 0.994 In. 13.52

Peak discharge (base. 4.300 cfs). --Feb. 7 about 7 a.m.) 4,550 cfs (7.59 ft).

b Stage-discharge relation affected by ice.

Note. Doubtful or no gage-height record Feb. 5 to Mar. 7; discharge estimated on basis of 

recorder graph, weather records, and records for nearby stations.
POTOMAC RIVER BASIN

Opequon Creek near Berryville, Va.

Location. Lat 39"10'40", long 78"04'20", on left bank 35 ft downstream from bridge on 

u! S. Highway 340, 0.2 mile upstream from Abrams Creek, and 5.0 miles west of Berryvllle, Clarke County.

Drainage area.--58 sq ml, approximately.

Records available .--October 1943 to September 1956.

Gage. Water-stage recorder. Datum of gage is 503.24 ft above mean sea level, datum of 

1929. Prior to July 26, 1949, wire-weight gage at same site and datum.

Average discharge. 13 years, 38.3 cfs.

Extremes. Maximum discharge during year, 1,140 cfs Mar. 14 (gage height, 5.75 ft); minimum, 2.0 cfs Dec. 15, result of freezeup.

1943-56: Maximum discharge, 3,710 cfs Dec. 4, 1950 (gage height, 10.03 ft), from 

rating curve extended above 2,200 cfs by logarithmic plotting; minimum, 0.8 cfs 

Oct. 22, 1951; minimum daily, 1.2 cfs Oct. 7, 1947.

Flood In October 1942 reached a stage of 18.4 ft, from information by local 

residents.

Remarks. Records good. Diurnal fluctuation at low flow caused by mills above station.

Rating tables, water year 1955-56 (gage height. In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Mar. 13 Mar. 14 to Sept. 3O

1.05

1.1

1.3

1.5 

1.7

3.£ 

4.5

£.O 

£.5 

3.0 

4.0

77 

148 

£42 

487

1.15 

l.Z

1.3

1.4

1.5 

1.7

4.5 

5.5 

8.5

1£

18

35

£.0 

£.5 

3.0 

4.0 

5.0

73 

148 

£4£ 

487 

815

Discharge, in cubic feet per second, water year October 1955 to September 1955

Day

1

£

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

£1

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1£

1£

1£

1£

11

13

12

14

12

11

11

10

10

16

17_

11

10

11

10

10

1011

9.6

8.0

11

9.2

*9.6

9.2

9.6

10

8.0

34E.2

11.0

0.190

0.22

Nov.

1£

9.£

10

9.6

8.4

10

7.6

1£

10

10

£0

14

1£

9.6

1£

11

12

9.6

11 

11

10

*14

11

9.6

8.8

11

9.2

io~7.3

8 .4

320.3

10.7

0.184

O.£l

Dec.

7.0

7.6

8.0

9.£

8^

8.0

7.6

8.0

9.£

8.8

7.6

5.9

8.0

*7.6

7.3

7.3

7.3

7.6

5.£

6.5

5.5

6

7.0

7.3

8.0

5.6

6.2

8.0

6.6

7.3

5 9

2£5.9

7.29

0.126

0.15

Jan.

5.9

4.0

5.9

8.8

6.2

5.6

6.£

4.8

4.0

7.6

14

16

1£

8.8

8.0

7.3

7.3

7.6

*7.3

8.8

8.8

8.4

6.2

7.3

8.0

9,. 6

8.0

8.0

10

~91 107

428.4

13.8

0.238

0.27

Feb.

45

190

£££

1£9

117

£78

390

116

81

60

80

1£6

70

50

78

71

70

94

67

52

36

30

£9

26

36

46

3£

£9

Z5

£,675

9£.2

1.59

1.72

Mar.

£3

£3

23

20

ii

19

19

26

£6

£3

20

2£

34

546

*190

1£9

155

14£

118

122

93

73

61

51

39

37

31

28

46

54

37

2,249

72.5

1.25

1.44

Apr.

30

28

51

64

39

40

375

£5£

100

69

51

4£

35

30

28

30

£4

23

*££

£0

19

17

£0

19

£0

18

17

17

15

16

1,531

51.0

0.879

0.98

May

14

14

13

14

13

12

14

1£

11

11

12

13

15

13

11

11

*9.6

11

11

10

9.9

9.6

9.6

9.6

8.8

8.8

11

14

10

9.9

11

356.8

11.5

0.198

0.23

June

12

14

£0

1£

10

10

*9.2

8.8

8.5

8.5

8.5

7.6

7.3

7.0

7.0

6.7

6.7

7.9

7.9

7.3

7.0

64

33

9.6

7.9

7.6

6.4

6.4

6.1

5.5

340.4

11.3

0.195

0.22

July

5.3

4.9

7.9

13

80

£88

47

£4

35

16

*11

9.6

9.6

9.6

7.9

7 .6

9.2

£1

9.9

198

174

100

105

155

88

36

34

2£

17

16

13

1,574.5

50.8

0.876

1.01

Aug.

11

11

11

10

15

£00

117

54

*28

£0

16

14

1£

13

13

11

11

9.6

11

10

16

14

11

11

8.8

8.£

10 5.8

8.£

9.9

8 . 8

709.3

££.9

0.395

0.46

Calendar year 1955: Max 1,950 Mln 2.5 Mean 30.5 Cfsm O.5£6 In. 7.16

Sept.

7.6

7.6

5.3

7.6

8.5

7.0

7.3

6.7

6.7

4.7

8.

*7.

6.

6.

7 .

7 .

4.

8.

6.

7 .

6.

6.

6.

7 .

8.5

7.3

13

47

17

9.9

£67.7

8.9£

0.154

0.17

Water- year 1955-56: Max 546 Mln 4.0 Mean 3O.1 Cfsm 0.519 In. 7.08

Peak discharge (base, 1,900 cfs). No peak above base. 

* Discharge measurement made on this day.
492 POTOMAC RIVER BASIN

Abrams Creek near Winchester, Va.

Location. Lat 39°10'40", long 78°05 I 10", on right bank 0.9 mile upstream from mouth and 

4.4 miles east of Winchester, Frederick County.

Drainage area. 16.5 sq mi.

Records available.--July 1949 to September 1956.

Gage. Water-stage recorder. Datum of gage is 526.46 ft above mean sea level, datum of 

1929.

Average discharge. 7 years, 17.6 cfs.

Extremes. Maximum discharge during year, 192 cfs July 5 (gage height, 2.96 ft); minimum, 

6.3 cfs Jan. 8; minimum gage height, 1.50 ft on many days.

1949-56: Maximum discharge, 962 cfs Dec. 4, 1950 (gage height, 6.16 ft), from 

rating curve extended above 410 cfs by logarithmic plotting; minimum, 3.5 cfs Oct. 8, 

1954 (gage height, 1.40 ft).

Remarks. Records good.

Rating table, water year 1955-56 (gage height, in feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Nov. 5 to Jan. 20)

1.4

1.5

1.6

6.3

9.0

13

1.7 

2.0 

2.5

20

51

117

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

14

14

15

15

15

15

15 

19

14

15

14

13

12

21

13

12

12

12

12

11

11

11

11

12

11

11

*11

11

11

12

12

407

13.1

0.794

0.92

Nov.

11

11

11

11

10

10

12

10

9.8

13

15 "¥.8

9.4

9.8

9.4

9.0

9.0

9.0

11

9.4

11

*9.8

9.8

8.5

8.7

9.8

8.7

9.8

10

9.0

304.7

10.2

0.618

0.69

Dec.

8.7

9.0

8.7

9.4

9.8

8.5

8.5 

8.5

9.0

8.5

8.5

9.0

8.2

*8.5

7.9

8.7

7.9

8.5

9.0

8.5

9.0

8.5

8.2

8.2

8.5

8.2

8.7

8.5

8.7

7]9

266.4

8.59

0.521

0.60

Jan.

7.4

8.5

9.4

9.0

9.0

9.0

8.5 

7.9

12

12

13

11

9.4

8.2

7.1

8.7

9.0

8.7

*8.5

9.0

8.5

8.2

10

10

9.8

10

10

10

16

32

16

325.8

10.5

0.636

0.73

Feb.

12

50

37

31

26

55

«29" 59 

23

20

28

29

22

21

28

23

25

32

23

21

19

18

17

17

21

17

18

18

17

756

26.1

1.58

1.70

Mar.

16

16

17

15

T7

16

38 

21

18

17

17

21

24

93

*40

36

36

34

33

29

26

22

21

20

18

19

17

17

21

19

17

751

24.2

1.47

1.70

Apr.

17

17

23

20

17

24

it

29

24

21

20

20

18

18

18

17

17

*18

17

17

17

17

18

17

17

17

16

16

16

644

21.5

1.30

1.45

May

15

15

15

15

15

15

15 

15

14

14

14

15

13

13

12.

13

*13

13

12

12

12

12

12

12

12

12

15

13

12

12

13

415

13.4

0.812

0.94

June

15

17 Is'

13

13

13

*12 

12

12

12

13

12

12

11

11

11

10

12

12

11

12

14

12

11

11

10

10

10

10

10

359

12.0

0.727

0.81

July

TO" 10

18

28

29

52

19

15

15

12

12

*12

13

12

11

12

14

12

11

45

27

18

15

17

15

13

16

12

12

13

12

532

17.2

1.04

1.20

Aug.

12

12

12

11

17

27

Tf

15

*13

13

13

13

14

14

13

12

12

12

12

14

17

12

12

12

11

11

12

12

12

27

14

430

13.9

0.842

0.97

Sept.

11

TT

11

12

11

12

12 

11

11

12

12

*12

11

11

14

11

12

12

11

12

12

12

12

12

11

12

2622-

15

13

379

12.6

0.764

0.85

Calendar year 1955 : Max 291 Min 7.1 Mean 15.2 Cfsm 0.921 In. 12.56

Water year 1955-56 : Max 93 Min 7.1 Mean 15.2 Cfsm 0.921 In. 12.56

Peak discharge (base, 200 efs).--No peak above base. 

* Discharge measurement made on this day.
POTOMAC RIVER BASIN 493

Opequon Creek near Martlnsburg, W. Va.

Location. Lat 39 °25 « 25" , long 77°56'20", on right bank 300 ft upstream from Evans Run, 

2.3 miles upstream from Tuscarora Creek, and 3 miles southeast of Martinsburg, Berkeley 

County.

Drainage area. 272 sq mi.

Records available. May 1905 to July 1906, July 1947 to September 1956.

Prior to 

July 23, 1947, to

Gage . Water-stage recorder. Altitude of gage is 350 ft (from topographic map). 

July 1906, staff gage at approximately same site at different datum. 

July 22, 1948, staff gage at present site and datum.

Average discharge. 9 years (1947-56), 217 cfs .

Extremes. Maximum discharge during year, 2,420 cfs Mar. 15 (gage height, 9.59 ft); minimum, 

38 cfs Jan. 8 (gage height, 1.24 ft).

1947-56: Maximum discharge, 9,100 cfs Dec. 4, 1950 (gage height, 14.12 ft); minimum 

observed, 25 cfs Oct. 25, 1947; minimum gage height, that of Jan. 8, 1956.

Maximum stage known, about 17.5 ft in March 1936, from information by local residents.

Remarks , Records good except those for periods of ice effect, which are poor.

Rating table, water year 1955-56, except for periods of Ice effect (gage

height, in feet, and discharge, In cubic feet per second) 

(Shifting-control method used July 30 to Aug. 5, Aug. 10 to Sept. 30)

1.4 

1.7 

2.3 

6.0 

8.0

47

72

173

1,110

1,720

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

97

92

94

94

91

95

95

106

104

92

91

85

85

139

160

112

98

95

91

88

*85

84

83

82

79

83

80

80

79

82

82

2,903

93.6

0.344

0.40

Nov.

77

80

78

7S

76

74

74

74

76

76

114

106

90

S3

78

*82

77

74

78

32

80

80

84

78

73

72

74

71

67

67

2,373

79.1

0.291

0.32

Dec.

66

66

67

68

69

67

64

63

64

64

62

62

b60

b60

b55

b55

b60

b60

58

*58

b55

b55

62

56

56

56

53

bSO

bSO

b50

bSO

1,S41

59.4

0.218

0.25

Jan.

bSO

bSO

52

53

53

52

50

bSO

bSO

bSO

60

77

73

62

56

54

57

56

56

56

56

54

54

 53

b50

bSO

bSO

bSO

56

125

567

2,082

67.2

0.247

0.28

Feb.

173

272

870

'554 542

580

1.390

667

467

330

354

530

404

320

*340

380

340

542

480

380

307

254

232

218

235

267

228

211

188

12,105

417

1.53

1.66

Mar.

175

177

173

165

154

158

165

184

191

167

162

167

209

1,240

*1.410

642

667

692

554

580

530

480

430

392

327

307

284

257

282

312

267

11,900

384

1.41

1.63

Apr.

244

230

252

332

270

247

692

1.140

567

430

367

324

292

267

257

254

237

*218

209

197

138

188

184

133

191

180

173

165

162

152 

8,797

293

1.08

1.20

May

150

146

152

TSG

140

136

132

134

123

121

123

121

125

118

*114

112

111

114

114

109

104

104

104

103

98

97

108

121

104

98

3,680

119

0.438

0.50

June

106

111

123

108

97

92

88

87

85

37

83

32

*80

80

SO

79

79

83

93

S3

84

83

152

TDTJ

80

78

76

71

71

69

2,675

89.2

0.328

0.37

July

68

69

69

151

130

493

254

132

112

*104

84

79

79

84

77

73

116

152

88

202

692

247

774

604

504

280

209

186

158

134

121

6,530

211

0.776

0.89

Aug.

114

109

108

104

118

211

430

250

160

126

111

104

104

104

101

92

90

87

84

91

112

*106

90

84

82

79

78

77

77

76

9T

3,656

118

0.434

0.50

Sept.

79

76

71

69

71

73

71

68

67

66

67

72

69

65

66

77

66

67

63

64

61

63

66

63

66

128

111

83

2,161

72.0

0.265

0.30

Calendar year 1955: Max 3,190 Min 45 Mean 171 Cfsm 0.629 ln . S.52

Water year 1955-56: Max 1,410 Min 50 Mean 166 Cfsm 0.610 In. 8.30

Peak discharge (base, 1.500 cfs). Feb. 7 (8 a.m.) 1,650 cfs (7.77 ft)j Mar. 15 (1:30 a.m.) 2,420 

cfs (9.59 ft)j Apr. 8 (6 a.m.) 1,520 cfs (7.37 ft); July 23 (1:30 a.m.) 1,650 cfs (7.79 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
494 POTOMAC RIVER BASIN

Tuscarora Creek above Martinsburg, W. Va.

Location.--Lat 39°28'10", long 77°58'15", on left bank at Martinsburg, Berkeley County, 

0.6 mile upstream from Dry Run and 3.7 miles upstream from mouth.

Drainage area. 11.3 sq mi.

Records available. October 1948 to September 1956.

Gage. Water-stage recorder. Altitude of gage is 450 ft (from topographic map). Prior to 

Jan. 5, 1949, staff gage at same site and datum.

Average discharge ..--8 years, 11.1 cfs.

Extremes. Maximum discharge during year, 72 cfs Mar. 14 (gage height, 3.17 ft); minimum 

daily, 1.2 cfs Dec. 31 to Jan. 9.

1948-56: Maximum discharge, 222 cfs July 22, 1953 (gage height, 4.73 ft), from 

rating curve extended above 130 cfs; minimum, 0.2 cfs May 27, 1954 (gage height, 

0.74 ft).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor.

Revisions (water years). WSP 1202: 1949, 1950(M).

Rating tables, water year 1955-56, except periods of Ice effect (gage

height, In feet, and discharge, In cubic feet per second)

(Shifting-control method used Feb. 3 to Mar. 13)

Oct. 1 to Mar. 14 Mar. 14 to Sept. 30

0.97

1.1

1.3

2.0

2.5

1.2

2.4

5.3

26

38

1.1 

1.3 

1.9 

2.5

2.2 

4.9

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

4.0 

3.7

3.8

4.1

3.7

4.1

4.6

4.7

4.0

3.7

3.7

3.7

3.4

5.8

4.7

3.7

3.7

3.4

3.1

2.8

*2.8

3.0

3.0

2.8

2.5

2.8

2.8

3.0

3.0 

3.0

3.0

110.1

3.55

0.314

0.36

Nov.

2.7 

2.8

2.8

3.0

2.7

2.3

2.5

2.8

1.5.

2.5

3.8

3.2

3.0

2.8

2.7

*2.7

2.7

2.5

2.8

2.8

3.0

3.0

3.0

2.8

2.3

2.3

2.3

2.3

2.2

2.2

80.0

2.67

0.236

0.26

Dec.

2.0 

1.8

1.9

2.4

2.3

2.2

2.2

2.2

2.2

2.1

2.2

2.1

2.2

2.2

2.1

b2.0

b2.0

2.1

2.0

*2.1

2.0

2.0

2.0

1.9

2.0

1.9

1.8

bl.6

bl.4 

bl.3

bl.2

61.4

1.98

0.175

0.20

Jan.

ftf

1.2

1.2

1.2

bl.2

bl.2

bl.2

bl.2

bl.5

2.0

2.1

1.8

bl.7

1.8

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

*1.7

bl.6

bl.5

bl.5

bl.5

2.0

4.6

4.1

53.4

1.72

0.152

0.18

Feb.

fci

14

11

11

22

28

T8

16

14

16

16

13

11

*11

10

11

25

16

15

14

12

11

10

12

11

10

9.7

8.9

388.4

13.4

1.19

1.28

Mar.

8.9 

8.4

8.4

" 8.4

8.1

8.1

9.2

alO

a 10

a9.0

a8. 5

a8.5

*8.4

*38

28

25

26

24

23

22

23

23

22

21

20

20

19

18

19 

18

17

519.9

16.8

1.49

1.71

Apr.

16 

16

17

16

a!5

a20

a30

a25

22

20

19

17

16

15

15

14

*14

14

13

13

13

12

12

13

12

12

12

11

12 

12

468

15.6

1.38

1.54

May

11 

TT

11

all

alO

alo

9.8

9.2

8.9

a8. 5

aS.l

a7.8

a7.5

a7.2

6.9

*6.7

6.3

6.3

a6.0

as. 6

5.3

4.9

4.8

4.6

4.2

4.2

5.8

5.1

4.6 

4.4

4.3

221.0

7.13

0.631

0.73

June

4.4 

4.8

4.6

4.2

4.0

3.8

3.6

3.3

2.9

3.4

2.9

2.9

*3.2

3.0

a3.0

a3.0

a3.0

4.2

3.7

3.3

4.9

4.0

3.3

3.3

3.2

2.8

2.9

2^6

2.7 

2.8

103.7

3.46

0.306

0.34

July

2.7 

2.3

2.4

3.0

4.6

5.4

4.2

3.4

3.3

*3.0

2.9

2.9

3.0

2.9

2.2

2.6

3.4

5.3

2.7

4.8

9.3

~7.7 21

8.9

8.1

6.7

6.5

6.2

5.8 

5.6

157.8

5.09

0.450

0.52

Aug.

a4.5 

a4.0

a4.0

a4.0

a4.5

6.3

' «5

6.0

5.1

4.8

4.4

4.3

4.4

4.4

4.3

4.2

3.8

3.7

3.4

4.0

5.3

*4.2

4.0

3.7

3.6

3.4

3.4

3.3

3.2 

3.2

3.0

131.9

4.25

0.376

0.43

Sept.

3.0 

2.9

2.9

3.0

2.8

4.9

3.7

2.8

2.7

3.0

2.9

3.0

2.8

a2.8

2.9

3.2

2.8

2.6

*2.6

2.6

2.6

2.7

2.4

2.6

2.4

2.4

3.0

4.4

3.2

2.7

88.3

2.94

0.260

0.29

Calendar year 1955: Max 91 Min 1.2 Mean 6.59 Cfsm O.583 In. 7.91

Water year 1955-56: Max 38 Min 1.2 Mean 6.51 Cfsm 0.576 In. 7.84

Peak discharge (base. 1OO cfs). No peak above base. 

* Discharge measurement made on this day. 

a No gage-height record} discharge estimated on basis of weather records and records for nearby 

stations.

b Stage-discharge relation affected by ice.
POTOMAC RIVER BASIN 495 

Antletam Creek near Sharpsburg, Md.

Location.--Lat 39°27'0l", long 77°43'52", on left bank 400 ft downstream from Burnslde 

Bridge, 1 mile southeast of Sharpsburg, Washington County, and 4 miles upstream from 

mouth.

Drainage area.--281 sq ml. At site used prior to 1928, 279 sq ml.

Records available.--June 1897 to August 1905, August 1928 to September 1956.

Gage. Water-stage recorder, concrete control since Mar. 29, 1934. Datum of gage is 

311.00 ft above mean sea level, adjustment of 1912. June 24, 1897, to Aug. 25, 1905, 

staff gage a few hundred feet downstream from Middle Bridge, 1.2 miles upstream at 

datum about 12 ft higher. Aug. 21, 1928, to July 13, 1933, staff gage at Burnside 

Bridge at same datum.

Average discharge.--28 years (1928-56), 260 cfs adjusted for inflow since 1934.

Extremes. Maximum discharge during year, 12,600 cfs July 20 (gage height, 16.73 ft), from 

rating curve extended above 4,300 cfs on basis of contracted-opening determination of 

peak flow; minimum, 84 cfs Jan. 20.

1928-56: Maximum discharge, that of July 20, 1956; minimum observed, 35 cfs 

Jan. 15, 1931; minimum daily, 50 cfs Sept. 29, 1930, Feb. 1, Oct. 4, 1931.

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

681

696

711

741

781

821

1141

1232

Water 

year

1929

1930

1931

1933

1935

1937

1949

1952

Date

May 3,

Ocb. 23,

July 9 ,

Aug. 24,

Dec . 1 ,

Apr. 27,

July 18,

May 25 ,

1929

1929

1931

1933

1934

1937

1949

1952

Discharge 

(cfs)

4,330

2,860

3,140

5,690

5,730

6,040

6,470

5,480

Gage height 

(feet)

a9.8

a7.9

a8.3

10.4

blO.8

10.7

11.23

10.32

a From graph based on gage read ings. 

b From floodmarks.

Remarks.--Records excellent except those for periods of ice effect, which are good. Flow 

slightly regulated by powerplant above station. Regulation greater prior to 1936. 

Since 1928, records include pumpage from Potomac River for municipal supply of Hagerstown. This water later enters Antietam Creek above station as sewage.

Revisions (water years).--WSF 192: 1897-1905. WSP 726: Drainage area. Revised figures 

of discharge, in cubic feet per second, for the water year 1933, superseding those published in WSP 741, are given herewith:

July 12, 1933........... 188

July 13, 1933........... 188

Water year 1932-33. . . 

Calendar year 1933. . .

Ob

Maximum

1,340

3,230 

3,230

served

Minimum

151

75 

120

Mean

250

344 

321

in cfs

-4.8

-2.6 

-2.9

A

Mean

245

341 

318

ajusted for

Per square

0.872

1.21 

l.li

pumpage

Runoff In 

Inches

1.01

16.50 

15.39
496 POTOMAC RIVER BASIN

Antietam Creek near Sharpsburg, Md. Continued

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge. In cubic feet per second)

Oct. 1 to July 20 July 21 to Sept. 30

2.3

2.7 

3.0 

4.0

184

290

780

6.0 1,870

8.0 3,400

9.0 4,330

2.4

6.0

110

184

281

695

1,670

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

162

152

147

145

140

150

157

170 

162

147

140

*138

429

885

430

326

282

262

240

226

212

203

196

196

196

187

181

179

179

179

6,933

224

6.7

Nov.

179

170

170

170

168

162

160

165 

160

162

229

209

179 

165

162

165

165

157

160

162

157

155

157

155

152

150

147

147

145

140

4,924

164

6.8

Dec.

145

143

145

147

145

143

140

*138 

138

138

133

131

131 

131

131

b!26

119

131

131

126

bl!7

bl!9

122

126

124

124

122

119

110

T19

117

4,031

130

7.3

Jan.

108

112

115

115

115

112

112

110 

106

115

157

187

160 

138

126

128

131

126

128

131

131

122

122

119

112

115

115

112

126

6430

*553

4,593

148

7.2

Feb.

212

332

570

555

415

709

1,110

685 

590

540

530

580

510 

465

460

450

415

515

610

525

485

445

415

395

405

450

390

366

344

14,473

499

7.2

Mar.

330

322

317

308

294

*290

322

430 

460

395

376

385

380 

705

885

725

705

635

590

560

540

535

540

565

550

525

505

480

485

485

455

15,079

486

6.7

Apr.

425

410

455

590

485

470

610

765 

*655

595

550

520

495

470

455

450

425

405

395

376

362

358

362

366

371

348

340

326

330

400

13,564

452

6.8

May

340

322

362

335

308

294

308

308 

282

274

278

270

262 

254

246

240

232

240

229

222

212

209

218

246

206

196

¥36

274

226

212

304

8,145

263

7.0

June

250

250

262

240

*226

212

206

196 

190

190

184

176

173 

170

168

168

162

165

179

170

173

179

165

165

157

152

152

150

143

143

5,516

184

7.1

July

140

140

143

168

250

274

193

160 

168

155

140

*140

143 

155

143

131

143

135

135

*3.760

1,330

538

360

345

300

267

246

233

224

211

*205

11,075

357

7.1

Aug.

199

196

187

181

196

236

227

211 

187

176

168

160

157 

162

157

152

147

145

143

147

233

211

160

147

143

135

133

135

133

131

I3T

5,226

169

6.3

Sept.

128

126

124

122

122

174

281

168 

135

131

128

128

131

131

140

187

157

140

133

135

131

126

126

147

145

126

143

236

190

157

4,448

148

8.2

Adjusted for pumpage

Mean 

Cfsm 

In.

217 

0.772 

0.89

157 

0.559 

0.62

Calendar year 1955: 

Water year 1955-56:

123 

0.438 

0.50

141 

0.502 

0.58

492 

1.75 

1.89

479 

1.70 

1.96

Observed

445 

1.58 

1.76

256 

0.911 

1.05

Max 1,540 Mln 99 Mean 251 

Max 3,760 Mln 106 Mean 268

177 

0.630 

0.70

350 

1.25 

1.44

Adjuste

163 

0.580 

0.67

3

140 

0.498 

0.56

Maan 244 Cfsm 0.868 In. 11.81 

Mean 261 Cfsm 0.929 In. 12.62

Peak discharge (base. 1.500 cfs). July 20 (5 p.m.) 12,600 cfs (16.73 ft). 

* Discharge measurement made on this day.

t Pumpage, In cubic feet per second, from Potomac River for municipal supply of Hagerstown; furnished by city of Hagerstown.

b Stage-discharge relation affected by ice.
POTOMAC RIVER BASIN 497

North River near Stokesville, Va.

Location. Lat 38°20'05", long 79° 14 "20", on right bank at upstream side of highway bridge, 

2.7 miles upstream from city of Staunton dam, 3.7 miles upstream from Broad Run, 

5.0 miles west of Stokesville, Augusta County, and 7.7 miles upstream from Skidmore Pork.

Drainage area. 23.4 sq mi.

Records available. October 1946 to September 1956.

'Gage. Water-stage recorder. Datum of gage is 2,048.57 ft above mean sea level, datum of 

1929, Parkersburg-Uniontown supplementary adjustment of 1944.

Average discharge. 10 years, 27.8 cfs.

Extremes. Maximum discharge during year, 179 cfs Mar. 15 (gage height, 3.37 ft); minimum, 

1.0 cfs Sept. 14, 15 (gage height, 2.21 ft).

1946-56: Maximum discharge, 11,100 cfs June 17, 1949 (gage height, 10.9 ft, from 

floodmarks), from rating curve extended above 680 cfs on basis of computation of peak 

flow over dam; minimum, 0.30 cfs Oct. 2-24, 1953.

Remarks. Records fair above 10 cfs and poor below.

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

2.2

2.3

2.4 

2.6

O.8 

2.9 

6.2

17

2.8 

3.0 

3.3

81

165

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29 

30

31

Total

Mean

Cram

In.

Oct.

il 

2.9

2.9

2.9

2.7

2.7

2.5

2.9

2.9

2.9

2.7

2.7

2.5

2.5

2.3

2.3

2.3

2.1

2TT

2.1

2.1

2.1

2.1

*2.1

2.3

2.3

2.3

2.3 

2.3 

2.3

2 * 3

76.6

2.47

0.106

O.12

Nov.

H2..1 2.::

2.;i

2.;> 2.;; 2.:. 2.;.

2.!.

2.V

2.V

2.!.

2.!. 2."

2.'

2.!'

 S7T 3.E

3.J

3.J

3.2

3.2

3.2

2.S

2.5

2.<

3.2 

*3.2 

3.2

 82.e

2.7E.

0.116 o.i:

Dec.

2^1 

2.9

2.7

2.7

2.5

2.3

2.3

2.3

2.1

2.1

1.8

n.e

1.8

1.8

1.6

1.8

1.8

1.6

1.6

1.6

1.8

1.6

1.6

1.4

T4

1.6

1.6

1.8

1.6 

1.6

1 . 8

59.8

1.93

0.082

O.O9

Jan.

2.1

2.1

1.8

1.8

1.8

2.1

2.1

1.8

2.1

2.1

2.3

2.3

2.1

2.1

2.1

*1.8

1.6

1.8

1.6

1.6

1.6

1.8

1.8

1.6

1.6

1.6

1.6

*2 H. 5

12

68.4

2.21

0.094

0.11

Feb.

it

39

66

68

77

129

107

74

55

46

46

46

42

39

35

32

32

34

39

39

35

31

26

27

40

44

46 

42

1,371

47.3

2.02

2.18

Mar.

37 

35

31

26

22

19

18

21

25

27

27

*26

25

94

16J.

115

79

63

50

4O

36

35

34

32

32

30

28

25 

24 

23

21

1,262

4O.7

1.74

2.01

Apr.

20 

19

19

19

19

24

87

144

115

86

7O

55

44

37

37

*39

40

39

39

36

32

3O

27

24

22

20

18

18 

17

16

1,212

40.4

1.73

1.93

May

15 

T5

15

14

13

13

12

12

11

10

10

10

9.1

*8.6

8.1

8.1

8.1

8.1

7.2

6.7

6.2

5.9

5.5

5.2

5.2

4.9

4.6

4.6 

4.6 

4.2

268.8

8.67

0.371

O.43

June

3.6 

4.2

5.5

*6.2

6.2

6.7

6.2

5.9

5.5

5.5

4.9

4.2

3.9

3.6

3.1

3.2

3.9

9.1

13

12

11

11

9.6

8.1

6.7

6.2

5.5

4.9 

4.6 

4.2

188.3

6.28

0.268

0.30

July

3.6 

*2.7

3.2

2.9

3.2

6.2

7.2

6.2

5.5

4.9

4.2

3.6

2.9

2.9

2.5

2.3

1.8

1.8

1.8

3.2

2.9

4.6

5.2

5.5

5.9

5.9

5.5

5.2 

5.5 

5 2

4.9

128.9

4.16

0.178

0.21

Aug.

4.6 

4.9

4.6

4.6

5.9

*9.6

12

11

10

8.6

7.2

6.2

5.2

5.5

4.6

4.2

3.6

3.2

2.9

2.7

3.2

2.9

2.5

2.5

2.3

2.3

2.1

1.8 

H

2

C

146.0

4.71

0.2O1

0.23

Sept.

3.2 

2.5

2.5

2.3

2.3

2.3

2.3

2.1

1.8

*1.6

1.4

1.4

Li2.

1.2

1.2

1.2

1.4

1.4

1.2

1.2

1.2

1.4

1.6

1.6

1.6

1.4

4.6

15 

IS 

12

91.1

3.04

O.13O

0.14

Calendar year 1955: Max 634 Mln 1.4 Mean 22.3 Cfsm O.953 In. 12.94

Water year 1955-56: Max 162 Min 1.2 Mean 13.5 Cfsm 0.577 In. 7.88

Peak discharge (base, 20O cfs). No peak above baae.

* Discharge measurement made on this day.
498 POTOMAC RIVER BASIN

North River near Burketown, Va.

Location. Lat 38°20'25", long 78°54'50", on right bank 0.8 mile downstream from Pleasant 

Run, 2.8 miles northeast of Burketown, Augusta County, and 8.5 miles upstream from 

Middle River.

Drainage area. 375 sq ml.

Records available.--June 1926 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 1,103.49 ft above mean sea level, datum of 

^929. Prior to Dec. 12, 1938, staff gage at site 3.0 miles downstream at different 

datum.

Average discharge. 30 years, 380 cfs.

Extremes.--Maximum discharge during year, 1.760 cfs Mar. 15 (gage height, 5.28 ft); minimum, 51 cfs Jan. 9 (gage height, 1.83 ft).

1926-56: Maximum discharge, 62,600 cfs June 18, 1949 (gage height, 36.3 ft, from 

floodmarks), from rating curve extended above 16,000 cfs on basis of 1 slope-area determination at gage height 32.4 ft, 2 at gage height 36.3 ft, and 1 contracted-opening 

determination at gage height 36.3 ft; minimum observed, 20 cfs Sept. 24, 1930 (gage 

height, 1.16 ft, site and datum then In use)

Remarks.--Records good. Occasional small diurnal fluctuation at low flow caused by mills 

above station.

Revisions (water years). WSP 1171: 1936(M).

Rating table, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

1.8

2.0 

2.5

85

224

3.0 

4.0 

6.0

420

935

2,210

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

120

116

110

108

108

108

108

123 

110

103

101

99

96

96

96

94

92

92

92

90

87

85

85

85

*85

85

85

85

85

85

83

2,997

96.7

0.258

0.30

Nov.

83

81

79

79

81

79

83

85 

81

83

108

92

83

81

81

81

77

74

83

85

83

79

77

77

74

74

74

*74

74

72

2,417

80.6

0.215

0.24

Dec .

70

70

72

72

68

68

66

66 

64

64

62

*62

66

62

62

60

62

62

62

62

64

64

66

64

64

64

62

62

62

62

60

1,996

64.4

0.172

0.20

Jan.

60

60

60

60

59

60

59

55 

55

60

62

62

60

57

57

60

64

60

59

60

59

59

57

55

55

59

57

59

68

83

94

1,894

61.1

0.163

0.19

Feb.

72

J9

116

136

161

273

786

794 

615

*474

398

407

390

369

356

319

303

307

303

323

327

307

284

262

258

276

291

311

295

9,592

331

0.883

0.95

Mar.

276

262

251

234

218

205

205

208 

248

323

327

303

*295

660

1,660

1,360

1,020

822

687

585

522

479

442

416

390

364

343

319

311

295

276

14,306

461

1.23

1.42

Apr.

258

251

258

251

241

251

687

1.400 

1,170

878

687

560

470

403

381

369

*327

307

288

269

251

241

231

221

214

205

195

189

183

180

11,816

394

1.05

1.17

May

173

173

180

170

161

158

155

153 

147

141

144

144

144

136

128

*123

123

123

118

116

110

110

110

106

101

101

101

101

99

94

94

4,037

130

0.347

0.40

June

92

94

101

94

*94

92

92

90 

90

87

85

81

79

79

79

77

87

96

90

81

74

77

74

72

64

64

64

62

60

60

2,431

81.0

0.216

0.24

July

62

60

*77

92

125

108

83

74 

74

72

68

66

64

64

60

57

66

70

62

120

96

118

101

99

96

94

92

92

90

92

90

2,582

83.3

O.E22

0.26

Aug.

87

92

92

85

118

954

*822

456

295

218

170

141

126

118

110

106

101

99

96

96

103

96

92

87

85

81

74

74

72

68

8T

5,295

171

0.456

0.53

Sept.

92

70

66

64

64

66

64

62 

60

*57

81

81

60

57

64

72

64

68

60

59

57

55

55

57

57

55

141

113

79

70

2,070

69.0

0.184

0.21

Calendar year 1955: Max 12,700 

Water year 1955-56: Max 1,660

Mean 363 

Mean 168

Cfsm 0.968 In. 13.14 

Cfsm 0.448 In. 6.11

Peak discharge (base, 2,500 cfs). No peak above base. 

* Discharge measurement made on this day.
POTOMAC RIVER BASIN 49S

Castle Spring near Churchville, Va.

Location. Lat 3£i°13'35", long 79°H'20", 50 ft south of State Highway 725 and 1.4 miles 

west of Churchville, Augusta County.

Records available.--October 1941, August 1947, October 1949 to September 1956 (discharge 

measurements only), discontinued.

Extremes.--1941, 1947, 1949-56: Maximum discharge measured, 2.22 cfs Jan. 19, 1953; minimum measured, 0.80 cfs Dec. 12, 1955.

Remarks.--Discharge measurements made monthly 75 to 300 ft downstream from source.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Apr. 16............... 1.79

May 14............... 1.70

June 4....;.......... 1.43

Bell Creek at Franks Mill, near Staunton, Va.

Location. Lat 38>13'10", long 79°06'35", on right bank 0.3 mile southwest of Pranks Mill

0.4 mile upstream from mouth, and 5.0 miles northwest of Staunton, Augusta County. 

Drainage area. 9.6 sq mi, approximately.

Records available.--May 1948 to September 1956 (discontinued). 

Gage. Water-stage recorder and concrete control. Altitude of gage is 1 350 ft (bv

barometer).

Average discharge.--8 years, 1.88 cfs. 

Extremes.--Maximum discharge during year, 18 cfs Mar. 14 (gage height, 1.21 ft); no flow

oept. 14 , 21~23.

1948-56: Maximum discharge, 912 cfs June 28, 1949 (gage height, 4.86 ft), from

rating curve extended above 160 cfs on basis of slope-area determination at gage height

4.10 ft; no flow Sept. 14, 21-23, 1956. 

Remarks. Records fair above 1.0 cfs and poor below.

Ratlrg tables, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Oct. 30 to Nov. 28)

Oct. 1 to Mar. 14 Mar. 15 to Sept. 30

.45 

.5

.55

0.21 

.26 

.35 

.49 

.76

0.6 

.7

.9

1.0

1.2 

2.2

3.7 

5.8 

9.0

0.3 

.35 

.4 

.45 

.5

.01 

.07 

.22 

.42

0.55 

.6

.9

.76 

1.2 

2.2 

3.7 

5.8

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

0.68

.76

1.0

.62

.57

.57

.57

.92

.92

1.0

.62

.57

.57

.57

.57

.76

1.0

.62

.62

.57

.57

.53

768

*.84

.62

.57

.53

.53

.57

. 68

1.0

21.20

0.684

0.071

0.08

Nov.

O.E7

.E7

.57

.76

1.1

l.c

.64

.E.3

.49

.15

1.0

.t.Z

.e>8

1.0

.!>7

.C8

.!i7

.!i7

.ii3

.02

.152

.'.3

.40

.;:9 .?j_

.,55

..to

..to

*..to

. to

17. 96

0.539

0.032

0.37

Dec.

0.40

.43

.46

.49

.57

.37

.35

.35

.40

.37

.40

*.35

.35

.35

.35

.35

.35

.40

.53

.35

.35

.43

.35

.43

.43

.40

.40

.35

.35

.35

.33

12.14

0.392

0.041

0.05

Jan.

0.37

.43

.40

.40

.35

.31

.31

.31

.40

.35

.33

.33

.31

.29

.31

*.43

.33

.31

.31

.29

.29

.31

.49

.31

.29

.29

.26

.22

.44

* 57 

740

10.74

0.346

0.036

0.04

Feb.

~^0 0.35

.92

al.5

al.5

a4.0

a3.0

a2.0

al.O

al.5

al.5

al.O

al.O

al.O

a. 9

a. 9

a. 9

al.O

al.O

a. 9

a. 9

a. 8

a. 8

a. 8

a. 9

a. 9

a. 9

a. 8

a. 8

33.87

1.17

0.122

0.13

Mar.

aO.8

a. 8

a. 7

a. 7

a. 7

a. 7

a. 8

a. 9

a. 8

a. 7

a. 7

*.68

.62

7.1

4.1

4.1

3.7

3.5

3.4

2.9

2.6

2.3

2.2

2.1

2.0

2.0

1.6

1.5

1.5

1.4

1.3

58.90

1.90

0.198

0.23

Apr.

1.4

1.5

1.0

.92

.76

1.0

1.8

1.9

T79

1.5

1.4

1.3

1.2

1.1

1.3

*1.6

1.2

1.2

1.0

.92

.92

1.1

1.1

.76

.76

.76

.68

.60

760

.68

33.86

1.13

0.118

0.13

May

0.52

.60

760

.46

.47

.47

.60

.42

.42

.42

.4,2

.42

.37

*.37

.37

.37

.42

.37

.37

.33

.33

.33

.33

.29

729

.29

.33

.42

.37

.33

.29

12.39

0.400

0.042

0.05

June

0.29

.37

.33

*.25

.22

.22

.22

.22

.22

.22

.22

.19

.22

.22

.35

.25

.22

.29

.25

.22

.22

.22

.19

.19

.16

.16

.16

.13

713

.13

6.68

0.223

0.023

0.03

July

0.13

*.13

.13

.16

.13

.13

.10

.16

.16

.16

.13

.10

.10

.10

.10

.10

.10

.13

.13

.38

.16

.16

.19

.19

.13

.10

.07

-L2I

.16

.10

.10

4.19

0.135

0.014

0.02

Aug.

0.07

.13

.13

.10

.19

*.25

.16

.13

.10

.13

.13

.10

.10

.10

.10

.10

.10

.07

.05

.10

.16

.07

.07

.05

.05

.03

.05

.05

.03

.03

.05

2.96

0.095

0.0099

0.01

Sept.

0.07

.05

.03

.03

.03

.05

.05

.01

.01

*.01

.01

.01

.01

0

.01

.03

.01

.01

.01

.01

0

0

0

.01

.01

.01

.91

765

.33

.22

2.62

0.087

0.0091

0.01

Calendar year 1955: Max 91 Mln 0.27 Mean 1.76 Cfsm 0.183 In. 2.48

Water year 1955-56: Max 7.1 Mln 0 Mean 0.594 Cfsra 0.062 In. 0.85

Peak discharge (aase, 100 cfs). No peak above base.

~ Lu.scnaige measurement raaae on tnis aay.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

Middle River near 3rottoes and South River near Waynesboro.
500 POTOMAC RIVER BASIN

Middle River near Grottoes, Va.

Location. Lat 38°15'42", long 78°51'44", On left bank at upstream side of bridge on State 

Highway 256 at Mount Meridian, Augusta County, 1.8 miles upstream from mouth and 

2.0 miles west of Grottoes, Rocklngham County.

Drainage area. 360 sq mi.

Records available. February 1925 to September 1956.

 . Water-stage recorder. Datum of gage is 1,061.51 ft above mean sea level, datum of 

929. Prior to Sept. 1, 1938, chain gage at same site and datum.

Average discharge. 29 years (1927-56), 307 cfs.

Extremes. Maximum discharge during year, 1,400 cfs Mar. 15 (gage height, 6.62 ft); minimum, 39 cfs July 17; minimum gage height, 2.16 ft Dec. 31. result of freezeup.

1925-56: Maximum discharge, 24,500 cfs Mar. 18, 1936 (gage height, 28.57 ft, from 

floodmarks), from rating curve extended above 15.000 cfs; minimum observed, 22 cfs 

Sept. 21, Oct. 3, 12, 1930 (gage height, 1.90 ft).

Remarks. Records good except those for periods of ice effect, which are fair. Small diurnal fluctuation at low flow caused by mills above station.

Revisions (water years). WSP 1051: 1928-29, 1930(M), 1932, 1935-37, 1938(M), 1940. 

WSP 1171: 1933.

Rating tables, water year 1955-56, except periods of Ice effect (gags

height, in feet, and discharge, In cubic feet per second)

(Shifting-control method used June 23 to July Zl)

Oct. 1 to July Zl July ZZ to Sept. 30

Z.3 55

Z.5 75

Z.7 99

3.0 146

3.5 251

4.0 385

5.0 7ZO

7.0 1,600

2.5 

2.7 

3.0

46

67

103

3.5 

4.0 

5.0

Z10 

360 

700

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

LO

11

1Z

13

14

15

16

17

18

19

20

Zl

ZZ

Z3

Z4

Z5

Z6

Z7

Z8

29

30

31

Total

Mean

Cfsm

In.

Oct.

138

136

134

129

129

129

129

138

152

T34

126

123

121

123

124

124

118

119

119

116

113

L13

110

*112

112

110

112

112

112

116

115

3,798

123

0.342

0.39

Nov.

112

112

110

112

110

109

112

126

115

112

141 136"

121

113

113

110

110

105

112

126

121

115

110

110

106

105

102

*100

99

12

3,375

112

0.311

0.35

Dec.

90

103

98

99

99

96

92

91

94

96

91

*84

89

106

153

98

blOO

99

96

b95

b95

b90

b90

90

90

89

86

80

92

86

81

2,888

93.2

0.259

0.30

Jan.

89

84

90

83

83

80

83

91

b95

96

87

84

84

80

Ii

*79

84

91

91

85

85

86

86

77

86

86

86

b94

89

102

126

2,718

87.7

0.244

0.28

Feb.

110

T39- 103

274

415

410

795

580

400

307

258

261

235

217

206

196

189

221

221

213

202

191

179

173

175

191

191

185

181

7,418

256

0.71L

0.77

Mar.

171

167

165

163

159

150

155

L61

198

181

171

*L69

175

611

1.220

795

755

562

492

460

400

371

337

316

289

271

258

244

240

235

213

10,249

331

0.919

1.06

Apr.

202

193

2OO

193

181

181

326

492

430

351

302

271

246

224

224

*251

318

294

274

246

224

206

196

185

175

167

161

156

150

144

7,163

239

0.664

0.74

May

139

139

150

152

141

134

136

136

129

126

127

126

126

*126

118

116

112

115

115

110

106

103

105

103

96

95

95

96

L02

96

98

3,668

118

0.328

0.38

June

103

106

124 *TT$

103

96

94

90

89

87

85

84

82

80

83

94

96

91

103

96

90

89

86

84

75

67

72

71

70

66

2,674

89.1

0.248

0.28

July

66

64

90

89

77

77

73

70

79

77

70

65

62

64

6O

64

61

63

64

111

~9l 188

82

99

88

78

69

69

67

69

71

2,417

78.0

0.217

0.25

Aug.

67

76

72

71

70

*113 ~99

78

68

67

65

81

65

63

62

62

60

58

57

60

66

75

67

60

58

56

59

74

80

72

76

2,157

69.6

0.193

0.22

Sept.

88

86

70

67

67

63

78

80

64

*67

57

64

60

56

62

63

74

70

70

62

59

55

56

64

65

65

404

640

249

142

3,167

106

0.294

0.33

Calendar year 1955: Max 10,300 Mln 81 Mean 3Z3 Cfsm 0.897 In. 12.18

Water year 1955-56: Max 1,Z20 Mln 55 Mean 141 Cfsm 0.392 In. 5.35

Peak discharge (base. 2.000 cfs). No peak above base. 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
POTOMAC RIVER BASIN 501

South River near Waynesboro, Va.

Location. Lat 38°03 I S7", long 78°54'30", on right bank 80 ft downstream from bridge on 

State Highway 664, 1.3 miles southwest of post office at Waynesboro, Augusta County, 

and 2.4 miles downstream from Back Creek.

Drainage area. 136 sq mi.

Records available, October 1952 to September 1956.

Gage. Water-stage recorder. Datum of gage is 1,296.20 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Extremes.--Maximum discharge during year, 1,160 cfs Sept. 27 (gage height, 5.73 ft); minimum, 27 cfs May 30, caused by diversion for swimming pool; minimum daily, 28 cfs 

Sept. 5, 14, 21,-22.

1952-56: Maximum discharge, 13,500 cfs Aug. 18, 1955 (gage height, 13.95 ft), from 

rating curve extended above 4,200 cfs on basis of contracted-opening determination of 

peak flow; minimum, 25 cfs Sept. 16, Oct. 5, 1954; minimum gage height, 2.36 ft July 4, 

1955, May 30, 1956.

Flood in October 1942 reached a stage of 14.3 ft, from floodmarks.

Remarks. Records good.

Rating table, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

2.3 

2.5 

2.8

22

40

90

3.2 

4.0 

5.0

185

410

790

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

60

58

56

55

55

55

54

56

58

54

54

55

55

56

58

56

55

55

54

52

49

49

49

46

48

48

48

*46

48

48

48

1,638

52.8

0.388

0.45

Nov.

-48

46

46

46

48

46

48

48

48

49

55

56

52

49

48

46

44

43

44

50

49

48

48

48

44

44

44

44

*44

42

1,415

47.2

0.347

0.39

Dec.

44

44

43

43

43

43

43

43

42

40

39

38

38

38

40

37

38

38

38

37

37

37

37

37

37

37

36

35

35

35

34

1,206

38.9

0.286

0.33

Jan.

35

35

35

35

35

35

35

35

34

36

36

35

36

36

36

36

36

36

36

37

37

36

36

36

36

36

36

35

38

*43

55

1,134

36.6

0.269

O.31

Feb.

46

48

80

138

155

175

245

188

150

120

112

108

96

86

84

82

84

88

86

90

80

76

72

72

82

80

74

74

*68

2,941

101

0.743

0.80

Mar.

67

66

64

64

61

60

60

68

80

68

67

64

68

120

202

192

198

180

165

148

130

122

118

110

102

100

94

90

*88

86

80

3,182

103

0.757

0.87

Apr.

76

76

80

76

70

74

135

162

152

135

128

118

106

100

106

150

165

TSo

140

150

118

112

112

94

86

80

78

74

72

j38

3,243

108

0.794

0.89

May

67

67

70

75

66

64

62

64

61

60

60

58

56

54

52

52

50

52

52

50

49

46

46

44

42

42

42

42

40

36

*42

1,658

53.5

0.393

0.45

June

39

48

64

50

44

40

40

39

39

38

37

36

36

36

37

38

36

36

38

40

40

39

38

37

36

35

35

*34

33

33

1,171

39.0

0.287

0.32

July

33

36

36

32

34

34

33

34

34

33

33

33

33

32

31

31

33

33

31

256

145

92

64

52

46

43

37

36

35

36

 34

1,505

48.5

0.357

0.41

Aug.

33

32

32

32

33

35

34

32

31

30

30

31

30

31

30

30

30

30

30

30

31

31

30

30

29

29

29

33

32

30

*32

962

31.0

0.228

0.26

Sept.

40

30

34

30

28

31

35

38

39

30

30

29

29

28

29

30

30

30

3O

29

 28

28

29

30

30

31

691

*590

228

145

2,459

82.0

0.603

0.67

Calendar year 1955: Max 9,670 Mln 34 Mean 168 Cfsm 1.24 In. 16.79

Water year 1955-56: Max 691 Mln 28 Mean 61.5 Cfsm O.452 In. 6.15

Peak discharge (base. 1.000 efsi. July 20 (4 p.m.) 1,130 cfs (5.72 ft); Sept. 27 (7 p.m.) 1,160 

cfs (5.73 ft).

* Discharge measurement made on this day.

505690 O-59-33
502 POTOMAC RIVER BASIN

South Pork Shenandoah River near Lynnwood, Va.

Location.--Lat 38°19'20", long 78°45'30", on left bank 1.2 miles northeast of Lynnwood, 

Rockingham County, and 3.3 miles downstream from confluence of North and South Rivers.

Drainage area. 1,076 sq mi.

Records available.--September 1930 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 1,013.17 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Average discharge. 26 years, 997 cfs.

Extremes.--Maximum discharge during year, 3,560 cfs Mar. 15 (gage height, 6.38 ft); minimum, 84 cfs Sept. 21 (gage height, 1.78 ft); minimum daily, 175 cfs Sept. 21, 23, 26. 

1930-56: Maximum discharge, 80,000 cfs Oct. 15, 1942 (gage height, 27.2 ft), from 

rating curve extended above 20,000 cfs by logarithmic plotting on basis of computations 

of flow over dam at gage heights 23.60 and 27.2 ft; minimum, 32 cfs Sept. 20, 1932 

(gage height, 1.63 ft); minimum daily, 93 cfs Sept. 21, 29, 1930. 

Maximum stage known since at least 1870, that of Oct. 15, 1942.

Remarks. Records good. Small diurnal fluctuation at low flow caused by mill above 

station.

Revisions (water years). WSP 756: Drainage area. WSP 1171: 1933(M).

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

2.1 

2.3 

3.0 

5.0 

7.0

175

265

765

2,280

4,160

Discharge ubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

414

407

400

393

379

372

372

428

435

393

379

372

365

365

351

351

330

330

324

317

317

317

317

310

*304

304

310

298

298

298 

298

10,848

350

0.325

0.37

Nov.

291

298

291

298

291

291

291

310

304

291

358

344

324

298

291

278

291

278

291

310

304

304

278

284

278

265

265

*265

284

272

8,818

294

0.273

0.30

Dec .

260

272

260

260

278

278

265

250

260

265

260

245

2E5

240

255

220

250

245

245

230

235

225

240

235

240

250

235

225

215

230 

215

7,608

245

0.228

0.26

Jan.

225

225

235

230

230

225

225

199

203

230

230

220

215

215

220

215

*235

230

225

230

225

215

230

215

211

215

199

207

230

291 

137

7,037

227

0.211

0.24

Feb.

310

'358 284

592

802

915

1,850

1,780

1,330

1,100

892

878

840

788

750

728

682

705

712

720

720

675

652

600

600

645

652

668

652

22,880

789

0.733

0.79

Mar.

615

592

578

555

533

505

491

5l9

600

682

660

645

*63O

1,250

3.270

2,640

1,890

1,740

1,520

1,360

1,180

1,100

1,030

952

908

848

810

772

750

728 

690

31,043

1,001

0.930

1.07

Apr.

660

638

630

630

600

592

1,030

1.960

1,890

1,520

1,250

1,100

952

848

818

848

915

870

825

780

742

682

660

630

600

570

540

526

505

505

25,316

844

0.784

0.87

May

477

484

470

477

470

435

435

435

428

400

*393

386

379

372

358

351

358

351

351

344

324

317

317

317

298

291

278

278

284

272 

260

11,390

367

0.341

0.39

June

272

284

344

330

*291

272

255

250

250

245

240

235

225

225

220

235

260

260

278

255

245

235

230

220

207

203

199

203

195

191

7,354

245

0.228

0.25

July

191

199

*260

260

265

272

235

220

250

225

199

195

179

187

191

179

215

215

191

406

848

421

358

330

298

278

245

230

230

245 

240

8,257

266

0.247

0.28

Aug.

235

250

245

235

255

840

1.100

690

498

400

330

298

278

255

240

230

225

215

215

215

230

240

220

211

203

199

199

199

211

207 

207

9,575

309

0.287

0.33

Sept.

235

250

225

195

195

191

199

211

199

195

*215

255

191

187

179

195

199

203

191

187

175

183

175

179

179

175

908

1.890

810

519

9,290

310

0.288

0.32

Calendar year 1955: Max 32,600 Min 215 Mean 1,045 Cfsra 0.971 In. 13.16

Water year 1955-56: Max 3,270 Min 175 Mean 435 Cfsra 0.405 In. 5.47

Peak discharge (base. 7.000 cfs). No peak above base. 

* Discharge measurement made on this day.

Yagers Spring near Luray, Va.

LOGation.--Lat 38°40<50", long 78°27'25", 200 ft'upstream from Hawksblll Creek and 1.0 mile

north of Luray, Page County. 

Records available . April 1930, September 1944, August 1947, and October 1949 to September

1956 (discharge measurements only), discontinued. 

Extremes.--1930. 1944, 1947, 1949-56: Maximum discharge measured, 15.8 cfs Mar. 20, 1951;

minimum measured, 4.50 cfs Sept. 9, 1954. 

Remarks. Discharge measurements made monthly a short distance below source.

Discharge ents, in cubic feet per second, water year October 1955 to September 1956

Jan. 17............................ 6.49

Mar. 13............................ 9.93

Apr. 17............................ 11.7

May 15............................ 7.66

June 6.............................. 7.52

July 5.............................. 7.25

Aug. 7.............................. 14.2

Sept.11.............................. 7.83
POTOMAC RIVER BASIN 503

South Pork Shenandoah River at Front Royal , Va .

Location. Lat 38°54'50", long 78°12'40", on left bank at downstream side of highway 

bridge , 1.0 mile west of Front Royal, Warren County, and 3.5 miles upstream from confluence with North Fork.

Drainage area. 1,638 sq mi.

Records available . June 1899 to July 1906, September 1930 to September 1956. Revised 

records for June 1899 to July 1906 in Virginia Geological Survey Bulletin 31.

Gage . Water-stage recorder. Datum of gage is 469.38 ft above mean sea level, datum of 

1929. June 1899 to July 1906 staff gage at site 1 mile upstream at different datum.

Average discharge .--32 years (1899-1905, 1930-56), 1,643 cfs.

Extremes. Maximum discharge during year, 4,950 cfs Mar. 16 (gage height, 4.69 ft); minimum, 155 cfs Jan. 8 (gage height, 0.87 ft); minimum daily, 297 cfs July 3.

1899-1906, 1930-56: Maximum discharge , 130,000 cfs Oct. 16, 1942 (gage height, 

34.8 ft, from floodmark in gage well), from rating curve extended above 87,000 cfs on 

basis of slope-area determination of peak flow; minimum, 59 cfs Jan. 30, 1934 (gage 

height, 0.56 ft); minimum daily, 103 cfs Sept. 30, 1930.

Remarks. Records good. Diurnal fluctuation at low and medium flow caused by powerplants 

above station. Records of chemical analyses, water temperatures, and suspended sediment loads for the water year 1956 are given in WSP 1450.

Revisions (water years ).--WSP 951: 

Records available .

1936(M). WSP 1171: 1935(M), 1937(M). See also

Rating table, water year 1955-56 (gage height, in feet, and discharge,

In cubic feet per second)

(Shifting-control method used Aug. 9 to Sept. 3O; stage-discharge 

relation affected by ice Dec. 16, 18, 20, 31, Jan. 8-10, 27)

1.1 

1.5 

2.0 

5.0

290

620

1,150

5,400

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

650

640

620

64O

611

602

611

670

640

650

660

611

566

650

640

602

502

575

575

548

521

530

530

512

503

494

*494

5O3

467

530

512

17,959

579

0.353

0.41

Nov.

539

503

503

503

521

44O

503

512

512

557

575

575

602

620

566

566

503

485

512

530

521

530

539

530

530

512

467

485

458

485

15,684

532

0.319

0.3S

Dec.

467

467

458

458

5O3

503

467

458

485

458

449

458

476

458

*408

400

416

400

400

400

384

408

440

476

458

408

416

408

376

424

400

13,587

438

0.267

0.31

Jan.

432

416

408

392

408

416

384

350

300

sTTo

476

521

494

458

424

416

416

*432

4OO

424

503

325

353

376

360

376

400

360

467

539

740

13,126

423

0.258

0.30

Feb.

800

780

542

875

1,150

1,700

2,450

5,080

2,940

2.31O

1,960

1,760

1,560

1,500

1,430

1,340

1,260

1,230

1,180

1,220

1,160

1,140

1,100

1,060

1,070

1,020

1,010

1,050

1,010

40,987

1,413

0.863

0.93

Mar.

996

974

919

908

842

842

810

820

897

930

941

1,040

1,070

1,750

3,150

*4.8OO

4.2OO

3,750

3,010

2,660

2,310

2,100

1,890

1.76O

1,630

1,500

1,440

1,360

1,340

1,310

1,250

53,199

1,716

1.05

1.21

Apr.

1,160

1,100

1,110

1,O50

1,050

1,030

1,380

2.17O

3.010

2,940

2,520

2,100

1,890

1,630

1,500

1,43O

1,430

1,420

*1,430

1,320

1,250

1,180

1,160

1,030

1,060

1,010

963

897

952

820

42,992

1,433

0.875

0.98

May

780

853

810

750

800

7 SO

760

730

7OO

62 O

710

660

67O

620

611

*602

602

6O2

566

575

584

557

539

530

521

548

521

53O

512

503

503

19,649

634

0.387

0,45

June

485

467

512

*557

566

548

512

467

424

440

440

432

392

353

40O

476

432

432

530

5O3

521

503

432

458

449

440

384

346

346

559

13,586

453

0.277

0.51

i July

525

511

297

584

790

575

557

512

467

592

518

*576

576

359

325

318

325

368

332

548

800

1,280

1.560

1,270

1,110

886

740

650

539

476

467

18,013

581

0.355

0.41

Aug.

485

494

512

503

548

790

1,310

*2.510

1,500

1,030

69O

620

602

575

503

440

458

424

392

392

592

576

408

416

392

376

376

360

56O

511

355

18,698

603

0.368

0.42

Sept.

360

424

392

408

416

392

376

346

346

339

359

*376

546

416

476

511

352

576

576

392

368

339

325

360

339

325

400

1,250

5,750

2,170

17,165

572

0.549

0.59

Calendar year 1955: Max 59,30O Mln 376 Mean 1,873 Cfsm 1.14 In. 15.54

Water year 1955-56: Max 4,800 Min 297 Mean 778 Cfsm 0.475 In. 6.48

Peak discharge (base, 8,500 cfs).--No peak above bas 

Discharge measurement made on this day.
504 POTOMAC RIVER BASIN

Happy Creek at Front Royal, Va.

Location.--Lat 38°54"20", long 78°11'10", on left bank 30 ft upstream from highway bridge, 

1.0 mile south of Front Royal, Warren County, 2.3 miles upstream from Leach Run, and 

2.9 miles upstream from mouth.

Drainage area. 13.8 sq mi.

Records available. June 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 610.12 ft above mean 

sea level, datum of 1929, Culpeper supplementary adjustment of 1943. Prior to Oct. 1, 

1949, staff gage at site 0.3 mile downstream at different datum.

Average discharge. 8 years, 14.9 cfs.

Extremes. Maximum discharge during year, 253 cfs July 20 (gage height, 3.26 ft); minimum, 0.55 cfs July 2, 3 (gage height, 1.26 ft).

1948-56: Maximum discharge observed, 2,490 cfs Oct. 5, 1948 (gage height, 6.40 ft, 

site and datum then in use), from rating curve extended above 120 cfs by logarithmic 

plotting; no flow during several periods between Aug. 25 and Sept. 4, 1953.

Remarks. Records good. Some diversion above station for Front Royal municipal water 

supply. Moderate diurnal fluctuation caused by municipal reservoir operation.

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, in cubic feet per second)

1.2

1.3

1.4

1.5

0.25 

.75 

2.4 

4.7

1.7 

2.0 

2.4 

2.8

64

132

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

Cfsm

In.

Oct.

5.0

5.0

4.7

4.2

4.4

4.7

5.0

11

6.2

4.7

4.2

4.0

4.2

~9.6 15 

5.9

5.0

4.7

4.7

4.0

3.7

3J:

3.4

3.7

3.7

3.7

3.7

*3.7

3.7

7.2

6.5

162.6

5.25

0.380

0.44

Nov.

4.2

4.0

4.0

3.7

3.7

4.0

4.4

5.0

4.2

5.3

11

^.9

5.9

5.3

5.0

6.2

4.7

4.2

5.3

5.6

*4.7

4.7

4.4

4.2

4.2

4.2

4.2

4.0

3.0

375

143.2

4.77

0.346

0.39

Dec.

3.0

3.7

4.4

 OJ 4.7

3.4

3.2

3.4

3.4

3.0

3.0

2.8

2.6

2.6 

*3.2

2.4

2.6

3.0

2.8

2.4

2.0

2.0

2.6

2.8

4.4

3.2

2.2

1.8

272

2.4

2.2

91.4

2.95

0.214

0.25

Jan.

2.6

2.2

2.6

2.6

2.4

2.6

2.6

2.2

1.8

2.6

27

19

12

8.8 

8.0

6.5

5.9

5.3

5.0

*4.7

4.4

4.2

4.4

4.7

3.2

3.4

3.0

3.0

7.5

25

20

209.2

6.75

0.489

0.56

Feb.

16

25

26

24

22

40

47

35

*30

25

26

26

22

21 

20

18

17

17

15

14

12

11

11

10

14

12

11

10

9_,2

586.2

20.2

1.46

1.58

Mar.

8.8

8.8

8.4

9.2

8.0

8.0

8.0

12

11

9.6

9.6

9.6

11

If

*51

42

38

32

28

26

25

24

24

22

21

19

16

19

16

15

660.0

21.3

1.54

1.78

Apr.

14

12

12

12

11

18

75

84

55

42

34

28

25

21 

21

19

16

16

*14

13

12

12

12

11

11

10

10

9.2

9.2

8.8

647.2

21.6

1.57

1.75

May

8.0

8.0

8.8

878

7.6

7.2

7.2

6.9

5.6

5.9

6.2

5.9

5.6

5.0 

5.0

5.0

4.7

*6.5

4.7

5.3

4.2

4.0

4.0

3.4

3.2

3.0

4.4

5.6

3.7

3.4

5.0

171.8

5.54

0.401

0.46

June

3.4

8.4

sTo

*4.7

3.7

3.4

3.2

2.8

2.2

2.8

2.2

1.8

1.6

1.6 

1.1

3.2

2.0

2.2

3.0

2.4

3.0

4.2

2.8

1.8

1.2

1.4

.95

.95

-42 ia

81.80

2.73

0.198

0.22

July

0.70

.70

.75

2.8

23

7.6

4.0

3.4

4.4

2.6

2.2

1.8

 1.8

1.6 

1.4

1.4

1.2

1.8

1.8

60

30

22

53

35

25

16

14

9.6

7.6

6.5

5.3

348.95

11.3

0.819

0.94

Aug.

4.4

5.9

5.6

4.2

11

27

2T

14

9.2

*7.2

5.0

4.2

4.0

4.4 

3.7

3.2

3.0

2.4

2.0

2.0

4.4

3.2

2.6

2.0

1.8

1.6

1.8

1.6

1.4

1^2

1.8

166.8

5.38

0.390

0.45

Sept.

2.0

1.6

1.6

1.2

1.2

1.4

1.4

1.1

1.2

1.2

1.1

1.6

 1.2

1~.95 

1.8

1.8

2.4

1.4

1.6

1.4

1.2

1.4

2.4

1.8

1.6

44

44

16

10

152.65

5.09

0.369

0.41

Calendar year 1955: Max 755 Min 0.60 Mean 14.7 Cfsm 1.07 In. 14.47

Water year 1955-56: Max 84 Min 0.70 Mean 9.35 Cfsm 0.678 In. 9.23

Peak discharge (base. 120 cfs).--Apr. 7 (5 p.m.) 194 cfs (3.06 ft); July 20 (8 a.m.) 253 cfs 

(3.26 ft); July 23 (12:30 p.m.)-159 cfs (2.92 ft). 

* Discharge measurement made on this day.
POTOMAC RIVER BASIN 505

North Fork Shenandoah River at Cootes Store, Va.

Location. Lat 38°38'13", long 78"51" 11", on right bank at Cootes Store, Rockingham 

County, 300 ft upstream from bridge on State Highway 259 and 3.7 miles upstream from 

Linville Creek.

Drainage area. 215 sq mi.

Records available. February 1925 to September 1956.

Qa^e. Water-stage recorder and concrete control. Datum of gage is 1,051.8 ft above mean 

sea level (Corps of Engineers benchmark). Prior to Nov. 15, 1937, chain gage at same 

site and datum.

Average discharge . 31 years, 186 cfs.

Extremes. Maximum discharge during year, 3,170 cfs Aug. 6 (gage height, 7.86 ft); minimum, 4.7 cfs July 3, 4 (gage height, 2.24 ft).

1925-56: Maximum discharge, 50,000 cfs Oct. 15, 1942 (gage height, 25.3 ft, from 

floodmark), from rating curve extended above 9,000 cfs on basis of contracted-opening 

determination of peak flow; minimum, 0.4 cfs Oct. 1, 1929, Aug. 22 to Sept. 3, 1930.

Remarks. Records fair prior to Feb. 1, good thereafter.

Revisions (water years j. WSP 726: 1928-31. WSP781: 1929(M). WSP951: 1936, 1939(M). 

WSP 1171:1935, 1937, 1938(M).

Rating table water year 1955-56 (gage height. In feet, and discharge, 

In cubic feet per second)

2.2

2.3

2.4 

2.6 

2.8 

3.0

3.5

6.5

11

24

44

75

140

400

875

1,510

2,300

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

9.2

8.8

8.8

8.3

7.8

7.8

8.8

11

IT

11

9.2

8.3

8.3

8.8

8.8

7.8

7.4

7.4

7.4

7.4

7.0

6.5

6.5

6.5

»5.9

5.6

5.6

5.9

5.9

6.5

o.f

241.4

7.79

0.036

0.04

Nov.

6.2

5.9

5.9

5.9

5.6

5.6

7.4

7.4

7.0

7.8

11

11

11

11

10

10

9.2

9.2

11

11

11

11

*11

12

12

12

11

11

11

10

281.1

9.37

0.044

0.05

Dec.

ftf

9.6

9.6

9.2

9.2

9.2

9.2

9.2

8.8

8.8

8.8

*8.3

8.3

7.8

7.4

7.0

7.0

7.0

6.5

6.2

6.2

6.2

6.2

6.2

6.2

6.2

5^6

6.2

6.2

6.2

237.7

7.67

0.036

0.04

Jan.

5.9

5.6

5.6

5.6

5.6

5.6

5^3.

6.5

5.9

5.9

7.8

8.8

9.2

9.2

9

9.2

»9.2

8.8

8.8

8.8

8.3

7.8

8.3

7.4

7.5

7.4

7.0

5.6

7.4

11

22_

246.0

7.94

0.037

0.04

Feb.

2633-

120

109

143

226

602

414

284

»208

176

188

167

149

140

130

128

146

161

167

152

132

118

105

107

107

99

95

91

4,723

163

0.758

0.82

Mar.

83

77

75

72

66

65

68

95

113

115

115

115

*120

*1,210

1.540

725

526

436

360

312

272

240

216

197

179

161

146

135

140

164

170

8,108

262

1.22

1.41

Apr.

164

155

155

149

138

221

1.780

1,620

750

504

376

300

232

191

173

158

*135

120

107

97

89

81

79

77

73

70

65

63

60

58.

8,240

' 275

1.28

1.43

May

57

55

57

55

54

51

50

48

44

42

41

40

40

38

»35

33

32

32

30

28

27

25

25

23

21

19

20

27

33

34

32

1,148

37.0

0.172

0.20

June

30

33

38

40

*3T

34

30

27

23

21

18

16

15

13

13

13

15

15

16

14

15

14

15

13

11

10

10

8.8

7.4

°'?.

571.7

19.1

0.089

0.10

July

5.9

6.5

5.3

579

50

»91

63

47

44

34

27

23

20

18

15

13

11

10

9.2

13

14

16

43

97 ?r

66

61

54

45

41 

31

1,070.8

34.5

0. 160

0.18

Aug.

28

35

31

26

329

1.940

*1,020

450

240

149

105

79

61

68

60

48

42

33

28

27

28

28

23

20

18

16

15

13

12

11

9.6

4,992.6

161

0.749

0.86

Sept.

10

9.6

8.8

8.3

7.8

7.8

7.8

7.0

5.9

5.6

*6.5

9.6

7.4

6.2

6.5

7.8

7.0

6.2

5.6

5.6

5^0

5.0

5.6

6.2

5.3

5.0

32

50

23

315.1

10.5

0.049

0.05

Calendar year 1955: Max 11,400 Mln 5.6 Mean 182 cfsm 0.847 In. 11.49

Water year 1955-56: Max 1,940 Mln 5.0 Mean 82.4 Cfsm 0.383 In. 5.22

Peak discharge (base, 3,500 cfs). No peak above base.

* Discharge measurement made on this day.
506 POTOMAC RIVER BASIN

Plains Mill Spring near New Market, Va.

Location. Lat 38°38'10", long 78°43'20", 2.8 miles west of New Market, Shenandoah County. 

Records~avallable. October 1949 to September 1956 (discharge measurements only),

discontinued.

Extremes. 1949-56: Maximum discharge measured, 11.2 cfs Aug. 23, 1955; minimum measured, 

 4.72 cfs Nov. 16, 1954. 

Remarks. Discharge measurements made monthly 100 to 350 ft downstream from source.

Discharge measurements, In cubic feet per second, water year October 1955 to September 1956

Apr. 17.............. 5.72

May 15.............. 5.61

June 5.............. 5.65

July 6.............. 7.70

Aug. 7.............. 5.23

Sept.11.............. 5.05

North Fork Shenandoah River at Mount Jackson, Va.

Location. Lat 38°44'44", long 78°38'21", on downstream side near center of span of 

bridge on State Highway 698 at Mount Jackson, Shenandoah County, 0.3 mile downstream 

from Mill Creek.

Drainage area. 509 sq mi.

Records available. October 1943 to September 1956.

Gage.--Wire-weight gage and crest-stage Indicator; gage read twice daily. Datum of gage 

is 838.55 ft above mean sea level, datum of 1929.

Average discharge.--13 years, 372 cfs.

Extremes.--Maximum discharge during year, 3,300 cfs Aug. 6 (gage height, 7.30 ft); minimum observed, 34 cfs July 19 (gage height, 2.35 ft).

1943-56: Maximum discharge, 30,000 cfs Aug. 18, 1955, from rating curve extended 

above 18,000 cfs on basis of peak runoff for flood in October 1942 for stations at 

Cootes Store and near Strasburg; minimum, 17 cfs Sept. 26-30, 1954.

Flood in October 1942 reached a stage of 20.2 ft, from floodmarks (discharge, about 

80,000 cfs), from rating curve extended above 18,000 cfs as explained above.

Remarks. Records good.

Revisions (water years). WSP 1382: 1945, 1948-50(M), 1951-53(M,P), 1954(M).

Rating table, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

2.3

2.4

2.5

2.6

3.0 

4.0 

5.0 

7.0

230

700

1,350

3,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16 17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Totan

Mean

Cf sm

Oct.

116

116

106

103

103

103

103

122- 129

103

103

97

94

100

100

94

91

91

91

91

88

85

85

85

*88

88

88

91

91

91

91

3,027

97.6

0.192

0.22

Nov.

91

91

91

88

85

85

91

97

91

91

129

110

97

91

88

88

82

74

88

91

85

82

*85

82

76

76

74

71

71

.§§

2,609

87.0

0.171

0.19

Dec.

65

68

71

71

71

71

68

71

68

68

65

56

*54

56

60

58

58

62

58

54

54

54

58

54

56

60

56

52

52

56

48

1,873

60.4

0.119

0.14

Jan.

44

48

54

52

54

54

54

46

42

58

74

76

68

62

56

60

*68

54

58

62

58

56

62

48

50

50

46

50

60

230

148

2,002

64.6

0.127

0.15

Feb.

122

135

332

332

378

445

1.070

700

490

400

355

400

355

310

310

250

270

290

310

310

290

270

250

230

E02

250

218

214

194

9,682

334

0.656

0.71

Mar.

180

172

162

158

158

155

155

198

230

222

222

222

230

*1,410

2.250

1,280

1,070

880

672

618

565

515

468

422

400

378

355

332

332

355

355

15,101

487

0.957

1.10

Apr.

332

310

332

310

270

270

1,830

2.590

1,280

820

645

540

468

400

378

555

510

*290

270

250

250

210

218

202

202

190

185

176

169

166

13,996

467

0.917

1.02

May

158

158

162

T62

148

145

155

142

135

132

132

132

129

125

*122

116

113

119

113

103

97

94

97

85

82

79

88

97

94

91

91

3,696

119

0.234

0.27

June

88

94

110

103

97

*97

88

79

74

68

68

58

56

il

42

60

58

105

116

74

62

62

132

145

74

54

54

50

46

44

2,301

76.7

0.151

0.17

July

44

46

50

50

281

*180

152

103

91

85

62

56

54

46

44

42

38

40

38

46

85

230

190

214

270

162

132

116

97

91

79

3,214

104

0.204

0.24

Aug.

68

97

85

79

138

1,830

1.910

*760

445

290

230

183

162

206

172

135

116

100

85

85

97

85

74

68

62

62

62

60

58

Rd. ££

54

7,912

255

0.501

0.58

Sept.

68

62

54

50

46

50

48

50

48

44

*44

71

54

46

44

50

56

50

48

42

40

39

40

44

46

42

54

270 152-

110

1,862

62.1

0.122

0.14

Calendar year 1955: Max 17,400 Mln 46 Mean 394 Cfsm 0.774 In. 10.51

Water year 1955-56: Max 2,390 Mln 38 Mean 184 Cfsm 0.361 In. 4.93

Peak discharge (base. 5.000 cfa). No peak above 

* Discharge measurement made on this day.
POTOMAC RIVER BASIN 507

Stony Creek at Columbia Furnace, Va.

Location. Lat 38°51'55", long 78°37'45", on right bank 0.8 mile south of Columbia 

Furnace, Shenandoah County, 3.6 miles downstream from Little Stony Creek, 4.7 miles 

northwest of Edinburg, and 6.4 miles upstream from mouth.

Drainage area. 76 sq mi, approximately.

Records available. January 1947 to September 1956 (discontinued).

Gage. Staff gage and crest-stage indicator; gage read once daily. Datum of gage is

895.29 ft above mean sea level, datum of 1929, Parkersburg-Uniontown supplementary adjustment of 1944.

Average discharge. 9 years, 70.4 cfs.

Extremes.--Maximum discharge during year, 850 cfs Mar. 14 (gage height, 3.65 ft); minimum 

observed, 4.4 cfs Sept. 11 (gage height, 0.31 ft).

1947-56: Maximum discharge, 4,990 cfs Aug. 18, 1955 (gage height, 7.97 ft), from 

rating curve extended above 1,200 cfs on basis of slope-area determination at 7.43 ft; 

minimum, 5.1 cfs Sept. 3-15, Oct. 13, 1954.

Flood in October 1942 reached a stage of 11.5 ft from information by local resident.

Remarks.--Records fair except those for periods of ice effect and doubtful or no gageheight record, which are poor.

Revisions (water years).--WSP 1382: 1948-49(M), 1951(M).

Rating tables, water year 1955-56, except periods of Ice effect 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Jan. 17

8.0

13

Jan. 18 to Sept. 3O

0.3 

.4

4.0 

8.5

1.0 

1.5 

2.0 

3.0

175 

310 

.7 28 .8 42 61O

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

12

11

10

10

9.5

10

12

ft

13

12

12

10

12

1O

10

10

10

10

10

10

10

9.0

B.5

*10

10

10

10

1111

345.0

11.1

0.146

0.17

Nov.

10

1O

10

10

10

9.0

11

12 

10

1O

14

16

14

14

13

16

13

12

12

13

13

13

*14

14

13

13

13

13

13

13

371.0

12.4

0.163

0.18

Dec.

12

11

13"

13

12

12

10

11

bll

b!2 

b!2

12

12

12

12

10

blO

blO

blO

blO

blO

blO

blO

b9

b9

b9

b9

b9

blO

337

10.9

0.143

0.16

Jan.

blO

blO

blO

10

12

11

11

10 

10

11

a 15 

a 15

a 13

all

alO

a 10

all

*a9

a9

alO

a 10

a9

a9

a8

a8

a8

a8

a9

18

27

58

370

11.9

0.157

0.18

Feb.

1167

108

81

100

20O

385

225 

*150

139

118 

139

118

98

118

84

86

102

98

88

98

67

61

48

62

62

58

52

48

3,107

107

1.41

1.52

Mar.

45

43

43

40

!§

36

40

52

52

50

47 

50

48

 400

280

225

a!95

al70

150

150

139

128

118

118

118

88

79

74

1O6

108

3,356

108

1.42

1.64

Apr.

88

86

84

79

67

70

509

355 

225

175

175 

128

106

98

92

86

74

*66

56

52

48

46

48

46

43

42

40

36

36

li

3,O90

1O3

1.36

1.52

May

32

31

34

31

29

29

29

28 

26

25

25 

24

24

23

22

*22

21

24

21

20

19

19

18

18

17

17

2O

23

19

18

723

23.3

0.307

0.35

June

18

18

24

19

19

*18

18

17 

16

15

14 

12

12

12

12

12

12

12

13

13

13

13

13

11

9.1

9.1

8.5

8.5

8.0

7.6

406.8

13.6

0.179

0.20

July

8.0

10

8.0

10

10

*14

13

12

14

12

12 

1O

8.5

9.1

8.5

8.5

8.0

11

8.5

8.5

10

10

10

13

12

8.5

8.0

ft?

6.7

6.7

302.4

9.75

0.128

0.15

Aug.

6.2

7.2

8.0

7.6

14

172

104

*29 

18

13

12 

9.7

9.1

9.1

8.5

8.5

7.6

7.6

6.7

7.2

9.1

8.5

7.6

6.7

6.7

6.2

6.2

6.2

6.2

6.2

6.2

540.8

17.4

0.229

0.26

Sept.

7.2

6.2

5.8

5.4

5.4

4.9

6.2

4.9 

4.9

4.9

 4^4. 

6.2

7.2

5.8

6.2

7.2

6.2

6.2

5.4

6.2

6.2

6.2

6.2

7.2

7.2

6.2

8.0

12 ~~S. 5

7.6

192.1

6.4O

O.084

0.09

Calendar year 1955 : Max 2,910 Mln 7.6 Mean 71.1 Cfsm 0.936 In. 12.70

Water year 1955-56: Max 509 Mln 4.4 Mean 35.9 Cfsm 0.472 In. 6.42

Peak discharge (base. 6OO efs). Mar. 14 (3 p.m.) 85O cfs (3.65 ft); Apr. 7 (3 p.m.) 690 cfs 

(3.15 ft).

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on basis of 1 discharge measurement, 

weather records, and records for North Fork Shenandoah River at Cootes Store.

b Stage-discharge relation affected by Ice.
508 POTOMAC RIVER BASIN

North Fork Shenandoah River near Strasburg, Va.

Location. Lat 38°58'36", long 78°20'11", on right bank at downstream side of bridge on 

State Highway 55, 1.5 miles southeast of Strasburg, Shenandoah County, 2.2 miles upstream from Cedar Creek, and 10 miles upstream from confluence with South Fork.

Drainage area. 772 sq mi.

Records available.--March 1925 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 494.03 ft above mean sea level, datum of 

1929. Prior to Sept. 21, 1930, chain gage at same site and datum.

Average discharge. 31 years, 577 cfs.

Extremes. Maximum discharge during year, 3,720 cfs Mar. 15 (gage height, 6.84 ft); minimum, 73 cfs Jan. 27 (gage height, 1.69 ft); minimum daily, 105 cfs Sept. 8, 10, 22, 

25, 26.

1925-56: Maximum discharge, 100,000 cfs Oct. 16, 1942 (gage height, 31.2 ft, from 

high-water mark In gage well), from rating curve extended above 46,000 cfs by logarithmic plotting; minimum, 6 cfs Feb. 9, 1934 (gage height, 1.52 ft); minimum daily, 

41 cfs Sept. 26, Oct. 1, 1930.

Remarks. Records good. Diurnal fluctuation at low flow caused by powerplants and mills 

above station. Records of chemical analyses, water temperatures, and suspended sediment loads for the water year 1956 are given in WSP 1450.

Revisions (water years). WSP 951: 1936(M). WSP 1001: 1931. WSP 1171: 1929(M) , 

1933IM), 1936-37.

Rating table, water year 1955-56 (gage height, In feet, and

discharge, In cubic feet per second)

(Stage-discharge relation affected by Ice Dec. 14, 17,

20-22, 27-51, Jan. 5, 10, 26, 28)

1.8 

2.0 

2.5

97

155

595

3.0 

5.0 

7.0

690

2,160

3,920

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

224

224

219

215

211

206

211

228

224

228

215

202

197

215

206

193

193

185

185

182

178

174

174

170

163

*166

166

163

170

174

174

6,035

195

0.253

0.29

Nov.

174

170

170

166

166

163

170

174

170

182

202

202

215

206

193

193

182

174

182

202

*178

166

174

174

189

170

166

159

145

155

5,332

178

0.231

0.26

Dec.

163

139

145

152

152

152

152

159

149

155

145

149

166

*136

136

152

145

163

14°

166

126

133

155

149

139

142

152

152

113

142

129

4,557

147

0.190

0.22

Jan.

141

140

145

136

149

149

149

149

149

145

152

139

149

,152

139

136

136

*152

145

136

129

129

126

123

120

126

133

142

155

145

203

4,419

143

0.185

0.21

Feb.

307

327

384

471

595

678

1,140

1.520

1,140

876

736

684

696

636

595

559

536

524

547

559

547

518

477

441

436

424

430

412

384

17,575

606

0.785

0.85

Mar.

361

339

328

318

307

297

286

302

307

350

367

367

378

877

*3.000

2,400

1,840

1,520

1,310

1,140

1,030

925

848

788

722

672

630

589

595

630

648

24,471

789

1.02

1.18

Apr.

606

577

559

559

530

530

1,170

3.360

2,480

1,640

1,240

1,030

883

755

684

660

618

*559

524

477

441

424

412

401

395

384

367

356

345

528

23,294

776

1.01

1.13

May

325

507

507

512

507

502

291

286

281

266

262

262

257

257

247

*242

255

255

255

235

224

215

211

202

197

185

189

197

189

197

197

7,644

247

0.520

0.57

June

195

202

206

202

211

*202

189

178

178

178

170

165

159

155

145

142

118

156

257

211

195

170

166

291

206

197

170

152

156

115

5,591

180

0.255

0.26

July

110

118

120

125

*145

262

247

242

228

189

170

165

155

149

139

155

156

155

126

129

142

149

189

559

528

567

507

247

215

195

178

5,895

190

0.246

0.28

Aug.

174

170

166

174

178

215

2.520

*1,640

925

595

456

559

291

257

252

281

228

202

185

170

174

166

159

155

145

159

155

155

126

129

155

10,790

548

0.451

0.52

Sept.

129

120

118

125

126

118

107

105

157

105

110

*115

110

107

118

118

110

107

110

115

107

105

107

113

105

105

115

156

159

 257

5,565

119

0.154

0.17

Calendar year 1955: Max 21,200 Mln 113 Mean 670 Cfsm 0.868 In. 11.78

Water year 1955-56: Max 3,360 Mln 105 Mean 325 Cfsm 0.421 In. 5.74

Peak discharge (base. 6.000 cfs). No peak above base. 

Discharge measurement made on this day.
POTOMAC RIVER BASIN 509

Cedar Creek near Winchester, Va.

Location. Lat 39°04'50", long 78°19'45", on left bank 0.2 mile upstream from Fawcett Run, 

0.3 mile upstream from bridge on State Highway 628, 1.3 miles downstream from Froman 

Run, and 11.4 miles southwest of Winchester, Frederick County.

Drainage area.--101 sq mi.

Records available.--June 1937 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 647.09 ft above mean sea level, datum of 

1929.

Average discharge. 19 years, 88.1 cfs.

Extremes.--Maximum discharge during year, 1,260 cfs Mar. 14, Apr. 7; maximum gage height, 

6.04 ft Mar. 14; minimum discharge, 6.1 cfs Sept. 10.

1937-56: Maximum discharge, 22,000 cfs Oct. 15, 1942 (gage height, 27.0 ft, from 

floodmarks), from rating curve extended above 15,000 cfs by logarithmic plotting; minimum recorded, 1.8 cfs Feb. 19, 1941 (gage height, 1.04 ft), result of low temperature; 

minimum daily, 5 cfs Aug. 24-31, Sept. 6, 1938, July 19-23, 1942.

Flood of Mar. 17, 1936, reached a stage of about 25 ft, from information by local 

residents (discharge, about 18,000 cfs).

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating tables, water year 1955-56, except periods of ice effect (gage

height, In feet, and discharge, In cubic feet per second)

(Shifting-control method used Mar. 14-24)

Oct. 1 to Apr. 6 Apr. 7 to Sept. 3O

1.4 

1.8

2.1

2.5 

3.0 

5.0

146

290

968

1.2 

1.4 

1.6 

1.8

5.8

14

26

44

2.1 

2.4 

3.0 

5.0

82

129

290

968

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

15

15

15

14

14

15

18

28

25

17

15

14

21

24

17

15

al4

a!3

a!3

al2

a!2

all

all

all

al2

*a!4

15

15

15

17

19

486

15.7

0.155

0.18

Nov.

19

17

17

16

il

15

17

20

20

18

26

38

31

26

24

30

27

23

24

25

25

*27

27

25

23

22

21

20

18

18

674

22.5

0.223

0.25

Dec.

17

19

18

21

21

20

18

18

18

17

16

b!5

b!4

*b!4

b!5

b!3

b!5

b!5

b!5

13

1G

14

17

17

21

21

17

15

16

17

13

516

16.6

0.164

0.19

Jan.

15

15

16

16

16

14

15

10

13

15

26

b35

b25

b2O

25

24

20

20

*20

21

20

18

18

18

18

20

16

17

26

62

110

724

23.4

0.232

0.27

Feb.

65

269

209" 598

185

268

580

317

227

176

163

218

158

132

153

141

136

185

165

141

118

98

86

73

104

118

88

80

68

5,319

183

1.81

1.95

Mar.

62

61

59

54

5O

49

52

56

55

48

43

42

53

694

*475

304

254

239

188

168

156

170

176

165

139

129

112

104

146

168

136

4,607

149

1.48

1.71

Apr.

118

110

118

118

98

118

938

701

420

290

230

190

160

138

127

118

103

*89

81

72

66

62

63

63

64

56

54

50

48

44

4,907

164

1.62

1.81

May

41

41

43

41

38

36

41

40

34

32

32

4O

56

40

34

34

*32

38

32

28

26

26

25

24

22

20

25

36

26

22

23

1,028

33.2

0.329

0.38

June

23

27

48

34

27

25

*22

20

19

18

17

15

14

14

12

12

12

14

17

14

14

27

25

16

12

12

11

9.8

9.4

9.0

549.2

18.3

0.181

0.20

July

9.0

9.0

9.4

16

40

96

30

18

18

14

12

*11

11

12

11

9.4

12

20

14

14

23

16

16

15

18

14

15

14

12

11

11

550.8

17.8

0.176

0.20

Aug.

9.4

9.4

11

11

13

50

37

22

*16

12

11

9.8

9.0

9.8

9.8

8.6

7.8

7.4

7.8

9.0

14

13

9.4

7.8

7.4

7.0

To

7.4

7.0

7.0

38

405.8

13.1

O.130

0.15

Sept.

20

12

9.4

7.8

7.4

7.4

7.8

7.4

6.7

6.4

6.7

8.6

*9.4

7.0

7.4

1O

9.4

7.4

6.4

6.7

6.4

6.7

7.4

7.4

7.8

7.0

12

33

16

11

286.0

9.53

O.094

0.1O

Calendar year 1955: Max 6,O6O Min 9.0 Mean 115 Cfsm 1.14 In. 15.54

Water year 1955-56: Max 938 Mln 6.4 Mean 54.8 pfsm 0.543 In. 7.39

Peak discharge (base, 1,OOO cfs). --Feb. 2 (10:30 p.m.) 1,110 cfs (5.47 ft); Mar. 14 (2 p.m.)

1,260 cfs (6.04 ft); Apr. 7 (7:30 p.m.) 1,260 cfs (5.98 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

Passage Creek at Buckton and Opequon Creek near Berryvllle. 

b Stage-discharge relation affected by Ice.
510 POTOMAC RIVER BASIN

Marlboro Spring at Marlboro, Va.

Location.--Lat 39°05'00", long 78°19'20", at Marlboro, Frederick County, 4.4 miles northwest of Middletown. 

Records available. August 1947 and October 1949 to September 1956 (discharge measurements

only), discontinued.

Extremes.--1947, 1949-56: Maximum discharge measured, 9.99 cfs June 5, 1952; minimum meas- 

 ured, 1.99 cfs Oct. 15, 1954. 

Remarks.--Discharge measurements made monthly 15 to 30 ft downstream from source.

Discharge measurements. In cubic feet per second, water year October 1955 to September 1956

Oct. 27............................. 3.94 May 17............................. 5.14

Nov. 22............................. 3.26 June 7............................. 4.19

Jan. 19............................. 2.55 July 12............................. 3.70

Mar. 15............................. 6.52 Aug. 9............................. 3.59

Apr. 18............................. 5.92 Sept.13............................. 2.71

Passage Creek at Buckton, Va.

Location.--Lat 38°5V'29" ) long 78°16'01", on right bank 350 ft upstream from bridge on. State

Highway 55, 1.2 miles south of Buckton, Warren County, 1.4 miles upstream from mouth, and

4.2 miles west of Riverton. 

Drainage area.--87 sq mi, approximately. 

Records available.--October 1905 to July 1906 (gage heights only), April 1932 to September

1956. 

Gage. Water-stage recorder and concrete control. Datum of gage is 525.14 ft above mean sea

level, datum of 1929. October 1905 to July 1906 staff gage at site 1 mile downstream at

different datum. Apr. 4, 1932, to Oct. 7, 1937, chain gage at site 350 ft downstream at

different datum.

Average discharge.--24 years, 69.2 cfs. 

Extremes. Maximum discharge during year, 1,230 cfs Mar. 14 (gage height, 6.58 ft); minimum,

1.7 cfs Jan. 8, result of freezeup (gage height, 2.78 ft).

1932-56: Maximum discharge, 21,000 cfs Oct. 15, 1942 (gage height, 15.5 ft), from

rating curve extended above 5,200 cfs by logarithmic plotting; minimum observed, 0.1 cfs

Aug. 5, 1932 (gage height, 1.38 ft, site and datum then in use). 

Remarks.--Records good. Diurnal fluctuation at low flow caused by fish hatchery above

station.

Rating table, water year 1955-56 (gage height, in feet, and 

discharge, in cubic feet per second)

3.5

2.6

3.6

5.2

9.7

17

3.7 

4.0 

4.4

5.0 

6.0

32

74

162

356

850

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28 

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.8

6.6

7.7

7.7

6.8

6.6

6.2

9.0

13

11

9.2

7.7

6.6

9.0

ii

11

9.0

8.2

7.7

7.7

7.2

7.0

6.8

6.6

5.8

*6.4

6.2

5.6 

670

7.0

9.4

245.5

7.92

0.091

0.10

Nov.

8.2

7.2

7.0

6.8

6.8

6.8

7.2

8.0

9.2

10

19

11

16

15

12

12

11

9.7

11

12

15

*13

13

12

11

11

10

9.7 

9.2

8,4

324.2

10.8

0.124

0.14

Dec.

7.7

8.4

9.0

9.7

977

9.2

8.4

8.4

9.0

9.0

8.4

8.0

6.8

7.2

*7.7

6.2

7.0

7.2

7.2

6.6

7.0

6.6

6.6

7.2

8.7

9.2

7.7

5.6 

8?0

6.8

6.8

241.0

7.77

0.089

0.10

Jan.

6.8

6.8

7.4

7.4

7.2

7.0

6.8

5.5

T77

9.0

17

28

21

15

14

14

13

12

12

14

12

11

12

10

9.2

11

8.2

8.4 

12

54

10*

483.4

15.6

0.179

0.21

Feb.

71

90

142

119

119

164

556

175

12a

106

99

155

108

89

89

80

80

97

95

82

69

61

55

51

61

60

52

50 

44

2,925

101

1.16

1.25

Mar.

39

58

38

56

52

'32* 51

59

54

43

58

58

44

573

*602

275

256

227

184

167

154

142

155

126

108

99

89

82 

95

114

91

4,021

150

1.49

1.72

Apr.

80

74

74

71

61

71

446

629

?E?

184

154

152

114

99

95

93

80

71

63

*57

51

48

51

48

48

42

38

56 

55

32

5,527

111

1.28

1.45

May

29

28

52

30

28

25

28

26

22

20

20

20

20

18

16

*15

15

17

18

16

14

15

12

11

9.7

9.2

11

15 

15 

12

11

575.9

18.6

0.214

0.25

June

10

11

20

T5

15

*10

9.0

8.2

7.2

7.0

6.6

6.0

5.2

5.0

5.0

7.2

8.2

8.7

8.2

10

8.4

8.2

8.0

6.4

5.4

5.0

4.9

4.4 

3.9 

5.4

241.5

8.05

0.095

0.10

July

3.1

5.1

2^8

3.6

*55

50

16

12

16

15

9.7

6.8

5.8

5.4

4.9

4.9

4.7

8.7

7.2

17

65

27

48

128

110

48

31

25 

16 

13

11

751.7

24.2

0.278

0.52

Aug.

9.7

10

10

9.4

10

211

197

80

47

*50

21

16

15

15

25

17

15

11

9.2

8.7

11

12

10

8.2

6.6

6.0

5.4

iff 5 2

9^0

848.8

27.4

0.515

0.56

Sept.

6.6

9.2

6.2

4.9

4.6

4.2

4.1

4.1

3.9

5.5

5.6

*4.4

6.8

6.6

5.4

5.0

5.4

5.4

5.2

5.2

4,4

4.4

4.7

5.6

6.0

6.0

9.2

15

217.6

7.25

0.083

0.09

Calendar year 1955: Max 7,510 Mln 2.2 Mean 87.2 Cfam 1.00 In. 15.59

Water year 1955-56: Max 629 Mln 2.8 Mean 58.8 Cfam 0.446 In. 6.07

Peak discharge (base. 1.000 cfs).--Mar. 14 (10 p.m.) 1,250 cfs (6.58 ft). 

* Discharge measurement made on this day.
POTOMAC RIVER BASIN 511

Shenandoah River at Millvllle, W. Va.

Location.--Lat 39°16'55", long 77°47'22", on left bank 0.4 mile downstream from Cattail 

Run, 1 mile upstream from Millvllle, Jefferson County, and 5 miles upstream from 

Harpers Ferry and mouth.

Drainage area. 3,040 sq ml. At site used prior to 1928, 3,042 sq ml (revised). 

Records available . April 1895 to March 1909, August 1928 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 293.00 ft above mean sea level, adjustment 

of 1912. Apr. 15, 1895, to Mar. 31, 1909, staff gage at site three-quarters of a mile 

downstream at datum 0.32 ft higher.

Average discharge.--28 years (1928-56), 2,547 cfs.

Extremes.--Maximum discharge during year, 9,030 cfs Mar. 16 (gage height, 6.56 ft)- mininum, 330 cfs kug. 28, 29 (gage height, 1.16 ft); minimum dally, 461 cfs Sept. 15.

1895-1909, 1928-56: Maximum discharge, 230,000 cfs Oct. 16. 1942 (gage height, 

32.4 ft, from floodmarks); minimum, about 59 cfs Oct. 4, 1930 (gage height, 0.39 ft); 

ninimum dally, 194 cfs July 24, 1930.

Flood In 1870 reached practically same stage as flood of Mar. 18, 1936, 26.36 ft, 

revised (discharge, 151,000 cfs).

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown In the following table. They supersede figures published in the water-supply 

papers Indicated.

WSP

-

192

-

-

-

-

-

726

781

Water 

year

1896

1897

1898

1901

1905

1907

1908

1932

1935

Date

Jan.

Oct.

Aug.

Apr.

June

Oct.

Jan.

May

Dec.

25,

1,

11,

22

25,

20,

13,

13,

2,

1896

1896

1898

1901

1905

1906

1908

1932

1934

Discharge 

(cfs)

*t!6,900

105,000

*52,000

*74,000

*16,500

*52,000

*51,300

34,400

64,800

Gage height 

(feet)

*6.6

a!9.72

13.0 tie.o

J6.5

13.0

U2.9

b!2.73

c!7.4

* Not previously published.

t Maximum peak discharge; maximum discharge during 

year,72,000 cfs 12 p.m. Sept. 30, stage rising. 

t From graph based on gage readings, 

a From floodmarks. 

b Regulated. 

c Corrected.

Remarks. Records excellent except those for periods of Ice effect, which are good. Regulation by hydroelectric plants, particularly that of Pototnac Edison Co: half a mile 

above station.

Revisions (water years). WSP 951: 1936. Revised figures of discharge, in cubic feet per 

second, for the water years 1895-99, 1901-2, 1905, and 1907-8, superseding those published 

ia WSP 192 and 241, are given herewithDate

1895

Aug. 31

1896

Sept .30

Oct. 1

1897

Jan. 12

13

14

15

16

17

18

19

20

21

22

23

24

25

Discharge

540

29,800

84,400

1,050

1,000

950

950

900

900

900

900

900

900

900

900

930

900

26 900

27 900

Date

18 97 -Con.

Jan. 28

29

30

31

1898

Feb. 1

2

3

4

5

6

7

8

9

1899

Feb. 1

2

4

5

6

7

Discharge

900

900

900

950

1,700

1,700

1,700

1,700

1,600

1,600

1,600

1,600

1,500

2,650

2,400

2,050

2,050

2,100

2,150

Date

1899-Con.

Feb. 8

9

10

11

12

13

Discharge

2,200

2,300

2,450

2,600

2,800

3,000

1901

Feb. 1 1,300

2

6

7

10

11

13

14

15

16

17

18

19

20

25

1,250

1,650

1,850

1,200

1,020

1,050

1,050

1,150

1,150

1,100

950

900

850

800

Date

1901-Con.

Feb. 27

28

1902

Feb. 26

27

1905

Feb. 25

26

27

28

Mar. 1

2

3

4

5

1906

Oct. 20

21

1908

Jan. 13

Discharge

750

800

65,000

70,000

1,800

1,800

1,900

1,900

1,900

2,000

2,100

2,100

2,500

37,900

44,800

42,800
POTOMAC RIVER BASIN 

Shenandoah River at Millville, W. Va. Continued

Revised figures of monthly discharge, in cubic feet per second, 1895-99, 

1901-2, 1905, 1907-8

Month

August 1895. ...............

Calendar year 1896.......

Water year 1896-97. ......

Calendar year 1897.......

February 1898. .............

Water year 1897-98. ......

Calendar year 1898.......

February 1899. .............

Water year 1898-99. ......

Calendar year 1899.......

February 1901. . ............

Water year 1900-1901..... 

Calendar year 1901.......

February 1902 ..............

Water year 1901-2. .......

Calendar year 1902 .......

February 1905 .............. 

March. .....................

Water year 1904-5. .......

Calendar year 1905.......

Calendar year 1906.......

Water year 1906-7. .......

January 1908. . .............

Water year 1907-8. .......

Calendar year 1908.......

Maximum

1,090

84,400

40,000

50,900

33,000

1,910 

50,000 

50,000

77,900

1,900

13,820

42,800

Mln imuni

540

540

550

820

650

730 

650 

730

650

1,200

540

980

780

Mean

772

2,735

t2,926

3,489

t3,049

1,120 

4,268 

4,829

4,102

1,483

1,878

3,820

3,390

Per square

mile

0.254

.899

.962

1.15

1.00

.368 

1.40 

1.59

1.35

.488

.617

1.26

1.11

Runoff in 

Inches

0.29

12.24

13.05

15.55

13.61

.38 

19.06 

21.56

18.32

.51

8.38

17.06

15.15

t Partly estimated.

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23 

24

25

26

27

28

29 

30

31

Ttotal

Mean

Cfsm

In.

Oct.

1,120

1,080

1,040

1,050

990

1,140

990

1,030 

1,130

1,170

1,040

1,080

990

1,140

1,220

1,100 

999

1,010

936

909

909

864

846 

810

882

746

Jae

810

794 

794

846

30,251

976

0.321

0.37

Nov.

828

828

855

855

746

778

810

730 

*802

819

900

981

963

981

1.100

802 

927

909

714

802

828

846

819 

819

837

828

837

778

754 

714

25,190

840

0.276

0.31

Dec.

698

738

754

738

730

778

730

746 

730

762

730

698

666

622

650

b700 

601

534

738

786

622

534

714 

682

754

722

b700

b650

b520 

629

b750

21,406

691

0.227

0.26

Jan.

636

548

746

658

594

601

615

b640 

b600

b700

b800

b900

b850

b800

b780

778 

786

674

714

b780

b630

b700

b580 

594

608

615

615

580

636 

864

1,120

21,742

701

0.231

0.27

Feb.

1.420

1,680

2,090

2,270

2,180

2,700

4,690

5,600 

5,540

4,490

3,670

3,400

3,140

2,850

2,700

2,570 

2,440

2,350

2,340

2,280

2,230

2,140

2,020 

1,950

1,770

1,940

1,900

1,860

1,790

78,000

2,690

0.885

0.95

Mar.

1,720

1,610

1,640

1,560

1,480

 1,480

1,500

1,440 

1,450

1,610

1,570

1,590

1,700

2,320

7,290

8,870 

8,190

7,180

6,090

5,280

4,670

4,160

3,820 

3,560

3,300

3,020

2,820

2,630

2,520 

2,560

2,560

101,190

3,264

1.07

1.24

Apr.

2,440

2,270

2,180

2,180

2,070

2,010

2,580

6,900

6*580

5,320

4,390

3,740

3,260

2,910

2,700 

2,540

2,440

2,350

2,270

2,140

2,040

1,920 

1,910

1,800

1,790

1,730

1,610

1,520 

1,590

86,800

2,893

0.952

1.06

May

1,360

1,340

1,450

1,400

1,320

1,360

1,330

 1,350 

1,200

1,200

1,050

1,190

1,150

1,150

1,090

999

1,070

1,040

981

1,010

990

846

963 

900

846

828 882"

927

909 

864

882

33,857

1,092

0.359

0.41

June

900

891

900

882

927

927

918

846 

794

722

714

706

682

658

622

548 

'6975

706

706

738

819

864

1,020 

837

762

846

682

690

594 

560

23,151

772

0.254

0.28

July

503

509

515

746

945

2,010

1,280

1,090 

1,090

909

819

 706

658

690

554

580 

636

622

622

2,030

5,890

2,250

2,510 

2,660

2,570

2,160

1,910

1,660

1,310 

1,260

945

40,639

1,311

0.431

0.50

Aug.

990

963

963

954

1,010

1,310

1,790

4,550 

3,820

2,630

1,930

1,480

1,400

1,220

1,190

1,080 

999

936

927

873

972

819

770 

794

738

762

754

731

582 

655

601

38,988

1,258

0.414

0.48

Sept.

615

690

658

714

580

650

674

608 

580

554

497

534

554

698

461

682 

666

580

528

650

528

580

594 

574

567

574

608

990

1,820 

5,070

22,078

736

0.242

0.27

Calendar year 1955: Max 94,900 Min 520 Mean 2,875 Cfsm 0.946 In. 12.83

Water year 1955-56: Max 8,870 Min 461 Mean 1,430 Cfsm 0.470 In. 6.40

Peak discharge (base. 15,000 cf s) . No pe 

* Discharge measurement made on this day. 

b Stage -discharge relation affected by ice.

ak above base.
POTOMAC RIVER BASIN 513

Little Catoctin Creek at Harmony, Md.

Location.--Lat 39°28'55", long 77°32'20", on right bank at upstream side of county highway 

bridge, 0.9 mile southwest of Harmony, Frederick County, 2.6 miles north of Mlddletown, 

and 2.8 miles upstream from mouth.

Drainage area.--8.9 sq mi, approximately.

Records available.--July 1947 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 540 ft (from topographic map).

Average discharge. 9 years, 10.3 cfs.

Extremes.--Maximum discharge during year, 494 cfs July 20 (gage height, 4.18 ft), from 

rating curve extended above 220 cfs as explained below; minimum, 1.2 cfs Sept. 14, 18, 

19.

1947-56: Maximum discharge, 5,400 cfs Aug. 20, 1952 (gage height, 8.49 ft in gage 

well, 9.82 ft from floodmark), from rating curve extended above 220 cfs on basis of 

slope-area determinations at gage heights 3.87, 5.58, and 6.82 ft, and contractedopening determination of peak flow; minimum, 0.4 cfs July 28 to Aug. 2, Oct. 12-14,1954.

Remarks.--Records good except those for periods of ice effect or doubtful gage height record, which are fair. Small diversion above station for municipal water supply of 

Middletown.

Revisions (water years).--WSP 1141: 1947. Revised figures of discharge, in cubic feet per 

second, for the water years 1947-48, superseding those published in WSP 1081 and 1111, 

are given herewith:

Date

1947

Sept. 1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

Discharge

2.1

Z.I

1.8

l.S

1.8

l.S

2.1

2.1

3.1

1.9

1.8

1.6

1.5

1.5

1.5

Date

1947 -Con.

Sept. 16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Discharge

1.5

1.4

1.5

1.5

1.5

1.6

1.9

1.6

1.5

1.5

1.4

1.3

1.3

1.4

1.4

Date

1947 -Con.

Oct. 1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

Discharge

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.4

1.4

1.4

1.4

1.5

1.5

1.4

1.3

Date

1947 -Con.

Oct. 16

17

18

19

20

21

22

23

24

25

26

27

Discharge

1.3

2.2

1.8

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.5

1.5

Month

Water year 1947-48 ........

Cfs-days

49 9

3,287.2

Maximum

91

Minimum

1.3

Mean

8.98

Per square 

mile

0.1S7

.174

1.01

Runoff In 

inches

0.21

.20

13.74

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

3.4

3.2

2.8

278

2.8

4.6

5.0

6.4

3.7

3.2

3.0

*2.8

3.6

!Z

12

9.7

8.6

7.4

6.0

5.5

4.6

4.6

4.6

4.6

4.3

4.0

4.0

4.0

4.3

3.7

232.2

7.49

0.842

0.97

Nov.

3.0

2.S

3.4

3.2

2.8

2.6

2.8

2.8

2.5

*8.6

~5.5 12

5.0

4.6

4.3

4.6

4.0

3.7

4.3

4.3

4.6

4.6

4.3

4.0

3.7

3.7

3.7

3.4

3.4

3.4

125.6

4.19

0.471

0.52

Dac.

b3.4

3.4

3.7

4.0

3.4

3.2

3.2

*3.4

3.2

3.0

b2 .8

b2.6

b2.4

b2.3

b3.0

b2.1

b2.6

2.8

b2.6

b2.0

bl.7

bl.6

bTTG

b2.5

3.2

b2.5

b2 .0

bl.7

b2.1

*b2 .5

bl.9

82.8

2.67

0.300

0.35

Jan.

b2.0

b2.1

2.8

b2.6

b2.6

b2.3

b2.3

b2.0

b2.0

8.3

7.0

5.5

4.0

b2.8

b2.8

3.2

3.0

b2.S

b2.8

3.2

b2.8

3.0

b2.8

b2.6

b2.5

b2.3

bl.8

bl.5

b275

b26

8.6

121.7

3.93

0.442

0.51

Feb.

*4.8

31

32

21

26

5i

24

22

20

22

20

16

14

16

12

12

25

17

15

13

bll

11

b9.0

18

16

13

12

9.8

554.6

19.1

2.15

2.32

Mar.

9.8

9.S

8.2

8.2

8.0

8.0

10

*19

13

11

12

14

14

68

36

36

32

27

27

25

25

27

27

26

22

22

20

19

20

18

16

638.0

20.6

2.31

2.67

Apr.

15

14

20

*17

15

21

lo- 46

ss

32

31

28

26

25

26

24

21

21

19

18

16

15

15

16

15

14

13

12

12

1°

632

21.1

2.37

2.64

May

9.7

12

1?

10

9.1

8.6

8.6

*7.0

6.0

6.0

6.0

6.0

6.0

5.0

5.0

5.5

5.0

5.0

4.6

4.6

4.3

4.0

4.0

3.7

5.4

3.4

12

6.0

4.0

4.5

4.5

195.1

6.29

0.707

0.82

June

4.5

7.0

575

4.0

*5.7

3.4

3.2

3.0

3.2

3.2

2.8

2.6

2.6

2.6

2.6

2.6

2.6

5.2

5.0

2.8

5.7

3.0

2.8

3.2

2.5

2.1

2.1

2.0

575

2.0

95.1

5.10

0.548

0.59

July

2.0

1.8

1.8

7.1

5.2

7.8

2.5

2.5

2.8

2.1

2.0

1.8

2.1

2.1

1.8

1.8

*2.0

1.7

1.7

d!02

d66

d45

d!9

d23

14

8.2

7.5

6.6

6.2

5.4

4.8

358.1

11.6

1.50

1.50

Aug.

4.5

*4.2

4.2

4.2

6.6

5.8

5.1

4.5

5.8

5.5

5.3

3.3

3.5

3.5

3.1

2.9

2.7

2.5

2.5

3.9

9.0

371

2.7

2.4

2.2

2.0

2.0

1.9

1.8

1.8

1.6

108.1

3.49

0.392

0,45

Sept.

1.6

1.6

1.5

1.6

1.6

9.1

2.2

1.5

1.5

1.4

1.4

1.5

1.4

1.4

2.2

2.0

*1.5

1.4

1.5

2.0

1.4

1.4

1.5

1.9

1.5

1.4

9_,9

6.4

2.7

2.2

70.2

2.54

0.263

0.29

Calendar year 1955: Max 228 Min 1.2 Mean 8.96 Cfsm 1.01 In. 13.65

Water year 1955-56: Max 1O2 Min 1.4 Mean 8.77 Cfsm O.985 In. 13.43

Peak discharge (base, 2OO efs).--July 2O (lo p.m.) 494 cfs (4.18 ft). 

* Discharge measurement made on thia day. b Stage-discharge relation affected by Ice. 

d Doubtful gage-height record; discharge computed on basis of engineers' notes, available record, 

weather records, and records for nearby stations.
514 POTOMAC RIVER BASIN

Catoctin Creek near Middletovm, Md.

Location.--Lat 39°25'35", long 77°33'25", on right bank 300 ft downstream from bridge on 

 State Highway 17, 1.3 miles south of Middletown, Frederick County, and 2£ miles downstream from Little Catoctin Creek.

Drainage area. 66.9 sq mi.

Records available. August 1947 to September 1956.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 385 ft (from topographic map).

Average discharge. 9 years, 80.4 cfs.

Extremes.--Maximum discharge during year, 1,920 cfs July 21 (gage height, 5.55 ft); minimum, 2.0 cfs Dec. 16, result of freezeup.

1947-56: Maximum discharge, 7,760 cfs July 18, 1949 (gage height, 11.18 ft), from 

rating curve extended above 1,500 cfs on basis of slope-area determination of peak 

flow; minimum daily, 1.5 cfs July 31, Aug. 1, 1954.

Revisions.--Figures of minimum discharge for the period August to September 1947 and 

for the water year 1948 have been revised to 4.8 cfs Sept. 28, 29, 30, Oct. 1, 1947 

(gage height, 0.71 ft), superseding those published in WSP 1141.

Remarks. Records excellent except those for periods of ice effect, which are fair.

Revisions.--Revised figures of discharge, in cubic feet per second, for the water years 

1947-48, superseding those published in WSP 1141, are given herewith:

Date

1947

Aug. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2O

21

22

23

Discharge

35

30

27

24

22

20

18

19

19

18

17

16

15

14

14

35

70

40

25

43

73

125

52

Date

1947-Con.

Aug. 24

25

26

27

28

29

30

31

Sept. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Discharge

28

21

22

31

21

18

15

14

13

12

11

10

10

12

13

15

14

13

14

12

9.5

8,2

7.3

Date

1947-Con.

Sept. 16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Oct. 1

2

3

4

5

6

7

8

Discharge

6.8

7.3

6.0

5.8

5.8

6.8

9.5

11

8.5

7.6

6.5

5.8

5.1

5.1

5.5

5.1

5.5

5.8

5.8

5.5

5.5

5.5

5.5

Date

1947-Con.

Oct. 9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge

5.1

5.1

5.1

5.1

5.5

5.5

5.1

5.5

8.2

15

9.5

7.6

6.5

6.0

5.8

5.5

5.5

6.0

6.O

17

31

17

14

Month

September. .................

Water year 1947-48. ......

Cfs-days

277.1

26,298.1

Maximum

125

15

604

Minimum

5.1

5.1

5.1

Mean

9.24

7.96

71.9

Per square 

mile

.138

.119

1.07

Runoff In 

Inches

.15

.'14

14.63

Note.--No gage-height record Aug. 1-19; discharge estimated on basis of weather records 

and records for nearby stations.
POTOMAC RIVER BASIN 

Catoctin Creek near Middle-town, Md. Continued

Rating table, water year 1955-56, except periods of ice effect 

height, in feet, and discharge, in cubic feet per second)

515

1.3 

1.6 

2.0 

3.0

135

257

705

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

22

20

18

16

16

22

39

41

33

23

20

18

18

434

225

118

92

79

69

60

53

49

44

42

41

38

36

34

33

33

1,822

58.8

0.879

1.01

Nov.

31

30

30

31

28

27

*28

30

27

32

83

46

36

34

32

33

33

29

30

32

31

35

32

31

29

29

28

28

b24

b24

973

32.4

0.484

0.54

Dec.

b24

24

26

29

27

24

22

23

23

b22

b21

b20

b!9

b!7

bl8

b!3

b!5

b!5

b!4

b!3

b!2

bll

b!4

bl8

25

b21

b!5

b!2

b!4

*16

1°.

577

18.6

0.278

0.32

Jan.

bll

b!2

15

17

17

15

15

11

11

14

25

44

38

b23

b24

b26

b22

bl8

b20

b23

b21

b20

blS

b!5

b!5

b!4

b!3

b!2

b!7

b220

*154

920

29.7

0.444

0.51

Feb.

b85

271

345

226

263

556

440

268

236

212

206

203

158

138

143

133

121

196

173

151

133

118

107

96

123

125

100

96

£3

__ ___ __ __

5,505

190

2.84

3.06

Mar.

79

81

77

72

67

64

77

*121

98

88

88

100

100

576

383

310

257

206

181

161

156

158

167

170

148

135

125

113

116

116

4,690

151

2.26

2.61

Apr.

90

86

126

*118

96

98

232

264

190

164

148

133

118

107

103

105

90

86

81

74

67

66

66

66

69

61

58

55

54

61

3,132

104

1.55

1.74

May

51

51

74

56

50

47

54

*49

44

41

44

42

40

37

33

33

32

34

31

29

27

26

29

29

24

23

61

60

32

27

55

1,265

40.8

0.610

0.70

June

46

47

58

39

*31

29

25

23

22

22

21

18

17

15

15

13

14

16

19

17

20

28

23

30

19

13

12

11

8.8

7.8

679.6

22.7

0.339

0.38

July

T^B.

7.8

9.5

39

35

75

30

21

21

16

13

11

12

15

11

7.8

*19

12

8.1

488

621

250

133

123

98

72

60

50

45

39

33

2,383.0

76.9

1.15

1.32

Aug.

30

*28

25

23

33

40

36

30

24

21

18

16

18

19

18

15

13

12

11

13

53

26

18

15

13

12

11

11

10

9.9

9.2

631.1

20.4

0.305

0.35

Sept.

8.4

7.8

7.2

6.7

6.4

36

25

12

8.8

7.5

7.5

8.1

7.5

7.0

8.1

16

*13

9.2

7.8

9.9

8.4

7.8

8.1

12

11

8.4

20

47

25

16

383.6

12.8

0.191

0.21

Calendar year 1955: Max 1,490 Mln 2.6 Mean 66.8 Cfsm 0.999 In. 13.55

Water year 1955-56: Max 621 Mln 6.4 Mean 62.7 Cfsm 0.937 In. 12.75

Peak discharge (base. 1,200 cfs). --Feb. 6 (5:15 p.m.) 1.260 cfs (4.23 ft); July 21 (11:30 p.m.)

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
516 POTOMAC RIVER BASIN

Potomac River at Point of Rooks, Md.

Location.--Lat 39°16'25", long 77°32'35", on left bank at downstream side of bridge on 

U. S. Highway 15 at Point of Rooks, Frederick County, a third of a mile downstream from 

Catootin Creek (Virginia) and 6 miles upstream from Monocacy River.

Drainage area. 9,651 sq mi.

Records available. February 1895 to September 1956.

Gage. Water-stage recorder. Datum of gage is 200.54 ft above mean sea level, adjustment 

of 1912. Prior to Sept. 2, 1902, wire-weight gage on downstream side of bridge at 

datum about 0.45 ft higher. Sept. 2, 1902, to Oct. 28, 1929, chain gage at same site 

at present datum.

Average discharge.--60 years (1896-1956), 9,378 cfs.

Extremes.--Maximum discharge during year, 60,800 cfs Apr. 9 (gage height, 12.54 ft); minimum, 1,240 cfs Dec. 16, result of freezeup (gage height, 0.72 ft).

1895-1956: Maximum discharge, 480,000 cfs Mar. 19, 1936 (gage height, 41.03 ft), 

from rating curve extended above 300,000 cfs on basis of adjustment of figure of peak 

flow at station near Washington for inflow and storage, and slope-area determination 

of peak flow; minimum, 540 cfs Sept. 10, 1914 (gage height, 0.38 ft).

Flood of June 2, 1889, reached a stage of 40.2 ft, from floodmarks (discharge, about 

460,000 cfs, from rating curve extended as explained above).

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

-

-

-

-

-

381

401

451

471

501

501

561

561

561

581

601

621

641

661

696

Water 

year

1899

1901

1904

1905

1912

1914

1915

1917

1918

1919

1920

1921

1922

1923

1924

1925

1926

1927

1928

1930

Date

Mar. 6,

Apr. 22,

June 1 ,

Mar. 11,

Feb. 28,

Mar. 19,

June 4 ,

Mar. 13,

Apr. 16,

May 11 ,

Mar. 6,

May 6,

Mar. 17,

Apr. 16,

May 13 ,

Feb. 13,

Feb. 27,

Nov. 17,

May 2,

Oct. 23,

1899

1901

1904

1905

1912

1914

1915

1917

1918

1919

1920

1921

1922

1923

1924

1925

1926

1926

1928

1929

Discharge 

(cfs)

t!28,000

t!61,000

t44,500

t71,400

t95,400

73,900

139,000

123,000

127,000

80,500

109,000

88,800

78,800

40,700

277,000

89,000

60,500

89,900

145,000

110,000

Gage height 

(feet)*

18.1

22.0

8.6

11.9

14.8

12.2

20.0

18.1

18.6

13.0

16.4

14.0

12.8

8.8

32.2

15.0

11.5

15.1

21.3

17.4

t Not previously published.

* From graph based on gage readings except that for 

May 13, 1924, which was obtained from floodmarks.

Remarks. Records excellent except those for periods of ice effect, which are fair. Lew 

flow affected slightly since 1913 by Stony River Reservoir (see p. 463) and since 

December 1950 by Savage River Reservoir (see p. 466).

Revisions (water years).--WSP 192: 1895-1905. Revised figures of discharge, in cubic 

feet per second, for the water years 1899, 1901-2, 1904-5, 1912, 1915, 1918, 1920, and 

1924, superseding those published in WSP 192, 321, 401, 471, 501, and 581, are given 

herewith:

Date

1899

Feb. 8

9

10

11

12

13

14

15

16

17

18

19

20

21

1901

Feb. 1

2

3

4

5

9

10

11

12

13

Discharge

7,000

7,000

8,000

9,OOO

9,000

9,000

9.OOO

9,000

9,000

9,OOO

9,000

10,000

13,000

22,000

3,000

2,900

2,800

2,900

3,000

3,500

3,500

3,500

3,600

3,800

Date

1901-Con.

Feb. 14

15

16

17

19

20

21

22

27

28

1902

Feb. 7

8

9

10

11

12

13

14

15

16

17

18

19

20

Discharge

4,OOO

4,000

4,000

3,800

3,000

2,700

2,500

2,400

2,500

2,300

8,600

8,400

8,200

8,000

8,000

8,000

8.0OO

8,000

8,000

8,000

8,000

8,000

8,000

8,200

Date

1902-Con.

Feb. 21

22

23

24

1904

Feb. 3

4

5

6

7

8

14

15

16

17

18

19

20

21

22

23

24

25

27

Discharge

8.5OO

9,000

lOjOOO

12,000

8,000

7,800

7,6OO

7,400

7,200

8,6OO

11,000

10,000

9,500

9,000

8,600

8,400

8,300

8,200

15,OOO

22,000

25.OOO

28,000

31 , 000

Date

1905

Feb. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

Discharge

5,000

5,000

,8OO

,500

,500

,500

,500

,200

,200

,10O

,100

,100

,100

,100

,100

,000

,000

,000

,000

,000

,300

,500

,500

,500

,500

,600
POTOMAC RIVER BASIN 

Potomac River at Point of Rocks, Md. Continued

517

Revised figures of discharge, In cubic feet per second, 1899, 1901-2, 19O4-5, 1912, 

1915, 1918, 1920, 1924--Contlnued

Date

1905-Con.

Feb. 27

28

1912

Jan. 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Feb. 1

2

3

4

5

6

7

8

9

Discharge

4,700

4,9OO

4,500

4,200

4,100

4,000

3,800

3,700

3,600

3,600

3,500

3,500

4,000

5,000

6,000

7,000

7,000

7,000

7,000

7,000

7,000

7,000

7,000

7,000

6,800

6,600

6,400

6,400

6,200

6,200

6,000

5,800

5,600

Date

1912 -Con.

Feb. 10

11

12

13

14

15

16

17

18

19

20

21

1914

Dec. 24

25

26

27

28

29

30

31

1917

Dec. 12

13

14

15

16

17

18

19

20

21

22

Discharge

5,500

5,400

5,300

5,200

5,100

5,100

5,200

5,400

5,600

6,500

8,000

9,500

4,500

4,500

4,500

4,500

4,400

4,200

4,000

4,000

2,600

2,400

2,200

2,000

1,900

1,800

1,700

1,700

1,700

1,800

1,900

Date

1917-Con.

Dec. 23

24

25

26

27

28

29

30

31

1920

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Discharge

2,000

2,100

2,400

2,600

2,800

3,000

3,000

2,900

2,800

11,500

12,000

11,500

9,070

8,000

7,000

6,300

5,800

5,500

5,200

5,000

25,000

20,000

15,000

11,500

10,000

8,500

7,000

6,000

5,500

5,000

5,200

6,000

7,500

Date

1920-Con.

Jan. 25

26

27

28

29

30

31

Feb. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

22

1924

Apr. 10

11

12

Aug. 24

Discharge

10,000

15,000

26,000

35,000

34,000

31,000

25,000

20,000

15,000

13,000

12,000

11,000

13,000

17,000

25,000

25,000

23,000

20,000

27,000

35,000

33,000

31,000

30,000

30,000

28,800

26,100

23,600

22,300

19,800

30 , 000

24,400

21,200

3,080

Month

Calendar year 1899. ...........

Calendar year 1901. ...........

Calendar year 1902 ............

Calendar year 1904 ............

Calendar year 1905. ...........

Calendar year 1912. ...........

Water year 1914-15. ...........

Water year 1917-18. ...........

Calendar year 1920. ...........

Calendar year 1924. ...........

Maximum

115,400

150,600

218,700

38,500

63,900

80,500

80,500

127,000

111,000

103,000

237,000

Minimum

1,540

1,540

1,760

1,295

900

1,750

5,100

1,640

643

770

5,000

10,000

1,480

8,130

1,420

Mean

12,560

10,140

14,130

13,810

6,069

7,518

14,900

9,910

9,690

8,200

9,370

12,700

20,300

10,800

22,100

14,200

Per square 

mile

2.46

1.30

1.05

1.27

1.46

1.52

1.43

1.52

.660

.629

.779

1.54

1.03

.889

1.00

.850

.971

1.32

2.10

1.10

1.12

2.29

1.42

1.47

Runoff In 

Inches

2.56

17.67

14.27

17.21

19.89

20.63

19.40

8.99

8.57

9.26

10.57

.88

1.66

13.97

13.63

11.54

13.17

1.52

2.26

14.85

15.22

2.56

19.36

20.04

505690 O - 59 - 34
518 POTOMAC RIVER BASIN

Potomac River at Point of Rocks, Md. Continued

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

0.8 

1.3 

2.0

1,400

2,510

4,610

4.0

7.0

12.0

12,400

27,000

57,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2,510

2,490

2,340

2,290

2,250

2,370

2,290

2,270

2,340

2,410

2,490

2,490

2,270

3,670

4,610

8,050

 5,820

4,260

3,600

3,300

3,020

2,810

2,740

2,440

2,370

2,440

2,320

2,220

2,250

2,110

2,180

91,020

2,936

0.304

0.35

Nov.

2,200

2,250

2,200

2,160

2,060

2,040

2,040

2,040

2,020

2,040

2,390

2,490

2,440

2,660

2,560

2,710

2,740

2,610

2,760

2,860

2,920

2.940

2,790

2,760

2,740

2,680

2,660

2,890

2,790

2,640

75,080

2,503

0.259

0.29

Dec.

2,370

2,340

2,250

2,270

2,130

*2,200

2,200

2,510

2,580

2,460

2,370

2,110

2,020

1,950

1,840

1,700

1,900

2,000

1,750

1,700

1,650

1,600

1,650

1,750

1,900

1,950

1,800

1,700

1,600

1,600

1,550

61,400

1,981

0.205

0.24

Jan.

1,550

1.500

1,600

1,750

1,850

1,850

1,750

1,600

1,550

2,000

2,350

2,560

2,610

2,500

2,290

2,040

2,100

2,000

1,890

17850

1,750

1,800

2,060

1,850

1,700

1,600

1,600

1,550

1,550

1,900

5.800

60,350

1,947

0.202

0.23

Feb.

11,000

13,900

13,200

24,100

25,400

21,700

30,700

41,000

33,800

 25,100

21,100

19,700

20,400

17,800

15,200

13,700

13,400

14,200

22,100

28,700

21,700

17,500

14,800

12,700

11,100

10,100

11,700

12,900

11,600

550,300

18,980

1.97

2.12

Mar.

11,300

10,300

9,400

8,800

8,170

7,480

7,180

7,700

10,700

13,100

13,000

11,800

11,200

13,600

29,400

49,600

38,700

30,200

25,100

21,500

19,500

18,100

17,700

17,700

17,500

16,700

15,400

14,000

13,200

13,300

15,700

517,030

16,680

1.73

1.99

Apr.

16,300

14,600

13,000

14,200

17,100

15,700

15,000

36,900

*55,400

38,400

27,900

22,000

18,000

15,200

13,300

12,100

11,100

10,300

9,560

8,960

8,320

7,750

7,480

7,290

7,250

7,330

7,140

6,920

6,700

6.580

457,780

15,260

1.58

1.76

May

6,180

6,040

6,110

6,400

7,410

7,630

7,180

6,810

7,030

7,370

6,580

6,150

5,970

5,860

6,810

6,510

5,790

5,540

5,360

5,140

5,460

5,000

4,680

4,470

4.300

4,920

4,920

4,960

7,120

14,900

11,200

199,800

6,445

0.668

0.77

June

9,000

7,750

7,220

7,440

10,000

 9,920

8,010

6,730

5,720

4,890

4,330

3,950

3,570

3,190

2,920

2,860

2,890

3,220

3,990

5,720

6,260

5,070

4,890

5,140

4,780

4,260

3,360

3,050

3,190

3,240

156,560

5,219

0.541

0.60

July

2,890

2,510

2,390

2,710

3,660

6,260

6,580

8,600

6,260

5,100

3,990

3,300

2,920

2,840

2,540

2,340

2,200

2,390

2,160

8,660

17,400

16,300

9,800

9,560

8,910

6,840

6,040

5,140

4,330

3,950

3,700

171,370

5,528

0.573

0.66

Aug.

3,820

3,790

3,240

2,990

2,920

2,970

9,090

28.400

18 , 400

11,900

8,440

6,580

5,320

4,440

3,890

3,480

*3,130

2,990

2,860

2,710

2,890

2,840

5,430

6,470

5,100

3,860

3,160

2,810

2,390

2,390

2 ,520

171,020

5,517

0.572

0.66

Sept.

2,660

2,860

2,660

2,510

2,580

2,580

2,640

2,540

2,270

2,200

2,180

2,200

2,060

2,000

1,910

1.860

2,130

2,200

2,130

2,270

2,160

2,090

2,090

2,060

1,970

1,890

1,910

2,510

2,860

4.680

70,660

2,355

0.244

0.27

Calendar year 1955: Max 190,000 Mln 1,460 Mean 9,492 Cfsm 0.984 in. 13.36

Water year 1955-56: Max 55,400 Min 1,500 Mean 7,056 Cfsm 0.731 In. 9.94

Peak discharge (base, 35.000 efs).--Peb. 8 (11 a.m.) 42,000 cfs (9.58 ft); Mar. 16 (11:30 a.m.) 

51,900 cfs (11.21 ft); Apr. 9 (5 a.m.) 60,800 cfs (12.54 ft). 

* Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Dec. 16 to Jan. 11, Jan. 14, 17, 18, 20, 21, 24-31.
POTOMAC RIVER BASIN 519

Monocacy River at Bridgeport, Md.

Lccation. Lat 39°40'43", long 77°14'06", on right bank 60 ft downstream from bridge on 

State Highway 32, at Bridgeport, Carroll County, 0.9 mile upstream from Cattail Branch, 

3.4 miles northwest of Taneytown, and 4.8 miles downstream from confluence of Rock and 

Marsh Creeks at Pennsylvania-Maryland State line.

Drainage area. 173 sq mi.

Records available.--May 1942 to September 1956.

Sage.--Water-stage recorder. Concrete control since Sept. 15, 1947. Datum of gage is 

340.83 ft above mean sea level (Corps of Engineers benchmark). Prior to May 3, 1946, 

staff gage and crest-stage indicator at site 0.3 mile downstream at datum 0.98 ft 

lower.

Average discharge.--14 years, 201 cfs.

Extremes. Maximum discharge during year, 6,020 cfs Mar. 14 (gage height, 11.47 ft); minimum, 7.7 cfs Sept. 6.

1942-56: Maximum discharge, 15,000 cfs May 21, 1943 (gage height, 20.53 ft, former 

site and datum), from rating curve extended above 6,700 cfs on basis of logarithmic 

plotting and velocity-area studies; minimum, 0.1 cfs Aug. 27, 28, 1944.

Maximum stage known, about 25 ft present site and datum, Aug. 24, 1933, from floodmarks; stage exceeded that of June 1889, from information by local residents.

Remarks. Records excellent except those for period of no gage-height record or those 

below 10 cfs, which are good. Occasional regulation at low flow from unknown source 

above station.

Revisions (water years). WSP 1382: 1944(M).

Rating table, water year 1955-56 (gage height, In feet, 

and discharge, In cubic feet per second)

7.5

2.8 

3,2

68

148

3.6

4.0 

5.0 

7.0 

9.0

268

425

950

2,300

3,800

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

12

14

15

16

17ie

19

20

2122'

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

31

37

26

20

II

20

42

47

63

42

27

21

18

2.070

1,680

352

210

162

134

109

88

78

70

64

64

64

56

51

50 

128

105

5,946

192

1.11

1.28

Nov.

71

58

52

55

54

48

46

46

47

44

*426

172

118

97

88

82

99

78

67

79

90

129

97

92

76

67

64

60

50

^£

2,594

86.5

0.500

0.56

Dec.

41

46

45

52

55

50

42

39

39

31

30

29

27

24

29

21

22

23

23

21

18

15

15

18

25

29

*22

17

15 

16

16

895

28.9

0.167

0.19

Jan.

16

14

15

18

21

20

19

16

17

21

44

62

67

37

36

35

35

22

25

28

29

30

25

21

19

21

17

15

17 

198

 

1,612

52.0

0.301

0.35

Feb.

146

234

1,200

772

794

1,660

1,900

699

564

452

565

844

348

248

286

275

213

1,930

680

368

248

170

136

120

279

603

255

213

151

16,353

564

3.26

3.52

Mar.

124

129

126

109

»94

90

306

1,590

505

282

255

310

372

5.150

878

586

768

552

364

548

573

638

917

686

325

278

220

184

195 

242

181

15,177

490

2.83

5.26

Apr.

145

131

890

589

282

221

1.970

1,180

445

507

248

210

181

156

141

151

154

114

107

94

82

78

78

86

105

86

84

74

106 

226

8,697

290

1.68

1.87

May

109

86

222

154

95

79

*175

136

88

73

70

65

452

148

82

64

59

55

52

46

59

55

50

41

55

26

51

54

40 

29

30

2,676

86.3

0.499

0.58

June

33

56

94

76

46

35

29

25

21

20

21

21

17

15

14

26

58

59

67

42

27

27

25

158

73

30

20

17

15

12.

1,177

39.2

0.227

0.25

July

10

9.7

30

1,350

242

309

129

67

65

*50

30

21

19

56

27

18

15

15

14

155

2.540

516

172

124

109

76

59

52

44

36

30

6,167.7

199

1.15

1.53

Aug.

25

23

19

18

44

120

97

60

41

28

21

18

16

16

16

15

15

12

11

11

118

111

43

27

21

17

15

13

12

11

10

1,022

33.0

0.191

0.22

Sept.

9.4

10'9.4

8.5

8.5

8.0

33

a25

a!5

all

alO

*a9.4

10

13

11

18

57

25

17

15

11

13

11

15

57

25

17

20

86 

46

576.2

19.2

0.111

0.12

Calendar year 1955: Max 5,380 Mln 2.3 Mean 163 Cfsm 0.942 In. 12.78

Water year 1955-56: Max 3,150 Mln 8.0 Mean 172 Cfsm -0.994 In. 13.53

Peak discharge (base. 3.800 cfs). --Oct. 14 (7:30 c.m.) 4.750 cfs (10.17 ft); Feb. 6 (11 p.m.)

4,250 cfs (9.56 ft); Feb. 18 (1:30 p.m.) 3,860 cfs (9.08 ft); Mar. 14 (3:30 p.m.) 6,020 cfs

(11.47 ft); July 4 (4:30 a.m.) 3,940 cfs (9.17 ft); July 21 (5:30 a.m.) 4,770 cfs (10.19 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range In stage, 

engineers' notes, and records for nearby stations.

ireather records,
520 POTOMAC RIVER BASIN

Big Pipe Creek at Brucevllle, Md.

Location.--Lat 39"36'45", long 77"14'10", on left bank 300 ft downstream from bridge on

 State Highway 71, 800ft downstream from Bruceville, Carroll County, and 3f miles 

upstream from Detour and confluence with Little Pipe Creek.

Drainage area. 102 sq mi.

Records available. December 1947 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 340 ft (from 

topographic map).

Average discharge.--8 years (1948-56), 114 cfs.

Extremes. Maximum discharge during year, 2,530 cfs July 21 (gage height, 6.72 ft in 

gage well, 6.92 ft from crest-stage indicator); minimum, 14 cfs Jan. 28, result of 

freezeup; minimum daily, 26 cfs Jan. 28.

1947-56: Maximum discharge, 9,500 cfs July 12, 1949 (gage height, 11.92 ft), from 

rating curve extended above 2,300 cfs on basis of slope-area determination at gage 

height, 8.38 ft and slope-conveyance study; minimum, 2.4 cfs July 28, 1954; minimum 

daily, 7.4 cfs Aug. 1, 1954.

Remarks.--Records excellent except those for period of fragmentary gage-height record,

 which are good, and those for periods of ice effect, which are fair. Diurnal fluctuation caused by mills above, station.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

0.9 

1.1 

1.3 

1.5

2.0 

3.0 

5.0

214

520

1,500

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

46

44

41

40

41

56

77

67

64

*50

46

44

41

1,170 

379

178

136

112

98

85

80 

74

70

69

70

66

63

60

70

145

93

3,675

119

1.17

1.34

Nov.

72

66

64

69

61

57

58

72

61

80

246

104

87

80 

75

77

69

61

67

74

72

67

64

64

58

60

57

57

49

b42

2,190

73.0

0.716

0.80

Dec.

b46

53

56

58

*56

50

47

47

49

47

b38

b36

b35

b39 

b46

b33

b36

41

b40

b31

b33

b31

39

40

46

b42

*b35

b30

b33

b36

b32

1,281

41.3

0.405

0.47

Jan.

b30

b29

35

b38

b37

b35

b32

b28

b30

49

67

63

56

b49 

b42

b43

b43

b38

b36

b49

b47 

b42

b36

b31

b29

b31

b29

b26

b4T5

b245

289

1,674

54.0

0.529

0.61

Feb.

blOO

*504

b540

b330

346

f808

737

317

256

214

235

243

163

138

158

145

127

466

224

176

142

114

102

98

170

156

112

108

89

7,318

252

2.47

2.67

Mar.

84

89

84

80

*72

75

100

256

154

118

129

161

176

H^

381

376

278

245

222

227 

262

256

248

188

178

154

140

147

147

127

6,530

211

2.07

2.38

Apr.

116 *110

284

206

147

154

487

36?

230

191

170

152

138

127 

127

140

120

112

108

100

94

91

94

96

98

93

89

85

82

82

4,487

150

1.47

1.64

Hay

74

80

96

82

74

72

84

77

67

66

67

66

~Sl 156

70

69

63

66

61

61

54 

54

93

61

54

51

70

77

54

54

63

2,220

71.6

0.702

0.81

June

91

93

125

*74

61

57

53

50

47

50

49

44

41

40 

39

38

44

61

60

44

45 

50

42

~50 128

41

38

36

33 ~v?

22.

1,656

55.2

0.541

0.60

July

31

30

lS3

367

430

149

84

63

373

87

64

56

51

58 

47

44

44

42

40

323

1.240 

176

125

127

106

84

74

66

61

57

54

4,676

151

1.48

1.70

Aug.

*50

49

46

45

94

84

70

57

50

47

47

53

53

56 

56

50

46

46

44

49

m49

45

42

41

40

39

38

35

1,665

53.7

0.526

0.61

Sept.

33

31

32

30

30

45

56

33

31

30

30

30

30

28 

33

46

34

30

30

46

1

33 

30

31

36

34

30

65

~ST 140

45

1,189

39.6

0.388

0.43

Calendar year 1955: Max 2,180 Mln H Mean 95.6 Cfsm 0.937 In. 12.72

Water year 1955-56: Max 1,240 Mln 26 Mean 105 Cfsm 1.03 In. 14.06

Peak discharge (base. 1.600 efs) . Oct. 14 (3 p.m.) 2,180 cfs (6.13 ft); Feb. 6 (about 8 p.m.) 

2,010 cfs (5.65 ft); Mar. 14 (1:30 p.m.) 2,030 cfs (5.88 ft); July 21 (2:30 a.m.) 2,530 cfs 

(6.72 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed from graph partly reconstructed on basis 

of high-water mark In well.
POTOMAC RIVER BASIN 521

Little Pipe Creek at Avondale, Md.

Location. Lat 39°33'40", long 77 0 02'38", on left bank at downstream side of private 

bridge, 0.1 mile downstream from Copps Branch, half a mile northwest of Avondale, 

Canroll County, and 3 miles southwest of Westminster.

Drainage area. 8.10 sq mi.

Records available. August 1947 to September 1956 (discontinued).

Gage. Water-stage recorder and concrete control. Altitude of gage Is 525 ft (from topographic map).

Average discharge. 9 years, 9.21 cfs (adjusted for Inflow).

Extremes. Maximum discharge during year, 1,880 cfs July 4 (gage height, 8.47 ft), from 

rating curve extended above 130 cfs on basis of slope-area determinations at gage 

heights 3.85 and 5.50 ft, and contracted-opening determination at 7.60 ft; minimum. 

4.1 cfs Jan. 28.

1947-56: Maximum discharge, that of July 4, 1956; minimum, 1.4 cfs July 1, 1954, 

result of storage behind temporary earth dam upstream; minimum dally, 3.0 cfs Sept. 13, 

1947.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Records include pumpage from Patapsco River basin for municipal supply of Westminster, 

which is discharged as sewage Into Little Pipe Creek above station.

Revisions (water years). WSP 1272: 1947-52. WSP 1382: Drainage area.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, 

in cubic feet per second)

1.1

1.2 

1.4 

1.6

Oct. 1 to July 4

2.0 

2.5 

3.0 

3.5

July 5 to Sept. 30

7.0

13

47

92

155

230

0.98

1.1

1.3

1.6

5.5 

8.3

14

2.0 

2.5 

3.0

48

92

155

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

5.8

5.6

STS

5.6

5.6

8.2

*6.8

7.9

6.6

6.3

6.0

6.0

6.0

44

T?

9.1

8.2

7.9

7.3

7.0

7.0

6.8

6.8

7.3

6.8

6.8

6.8

6.8

10

8.8

7.0

258.4

8.34

-1.10

Nov.

6.8

6.6

*7.0

7.0

6.6

6.3

7.6

6.8

6.6

11

10

7.6

7.0

7.0

6.8

7.0

6.6

6.6

7.3

6.8

6.8

6.8

6.8

6.6

*6.3

6.2

6.2

6.0

5.6

5.2

207.5

6.92

-1.07

Dec.

5.4

5.8

6.2

6.6

672

5.8

5.4

5.4

6.0

5.6

5.4

5.2

5.2

5.2

5.4

4.2

574

5.4

5.6

5.4

5.2

5.2

5.4

5.4

5.6

5.2

5.2

5.0

*5.2

5.0

5.0

168.9

5.45

-1.01

Jan.

4.9 479"

5.0

5.2

5.2

5.2

5.2

5.0

5.2

8.5

6.3

5.8

5.4

5.2

5.0

5.2

5.2

5.2

5.2

5.2

5.0

5.0

5.0

4.9

4.9

4.9

4.9

4.9

5.4

34^9.7

196.6

6.34

-1.01

Feb.

*40" 7.3

21

17

13

40

23

14

12

12

13

12

10

10

11

10

10

20

12

11

10

9.4

9.1

9.1

11

9.4

9.4

8.8

8.8

403.3

13.9

-1.03

Mar.

8.8

*8.5

8.2

7.9

57?

8.2

8.8

12

8.8

8.5

9-1

9\4

9.4

45

IS

22

19

16

15

15

15

16

15

15

13

13

12

12

12

12

11

411.8

13.3

-1.03

Apr.

11

*11

16

13

11

14

22

TT

15

14

13

12

12

12

12

13

11

12

11

11

10

10

10

11

10

11

10

10

9.7

*9TT

364.4

12.1

-1.04

May

9.1

10

9.7

9.4

8.8

8.8

9.4

8.8

8.8

8.5

8.5

8.5

8.8

8.5

7.9

8.2

7.9

8.2

7.9

7.9

8.2

8.8

11

8.2

8.2

8.2

12~8". 5

7.9

7.6

577

270.9

8.74

-1.16

June

9.0

~7.6 10

*6.8

6.6

6.3

6.0

6.3

6.3

6.0

6.3

5.8

5.6

5.8

5.8

5.8

6.3

8.2

5.8

5.6

6.6

5.8

5.6

9.8

5.8

5.6

5.4

5.4

5.2

52

192.3

6.41

-1.26

July

5.0

5^2

*20

~22" 184

16

11

10

12

9.6

9.1

9.1

9.4

8.8

8.3

8.6

8.6

8.3

8.3

97

147

29

14

15

12

10

9.6

9.1

8.8

8.3

8.1

741.2

23.9

-1.22

Aug.

8.1

7.8

7.8

7.6

11

8.6

8.1

7.3

7.1

*7.1

6.9

6.6

6.6

6.6

6.6

6.4

6.4

6.4

5.9

57T

9.9

7.1

6.6

6.6

6.4

6.1

6.4

6.4

6.4

6.1

6.1

221.1

7.13

-1.42

Sept.

5.9

5.9

5.9

5.9

5.9

*11

7.1

6.6

6.4

6.4

6.4

6.1

5.9

5.9

6.9

6.1

5.9

5.7

5.5

B7£

5.5

5.5

5.7

6.6

5.S

5.5

5.9

12

6. 6

5.9

192.7

6.42

-1.29

Adjusted for pumpage from Patapsco River basin

Mean 

Cfsm

In.

7.24 

0.894 

1.03

5.85 

0.722 

0.81

Calendar year 1955: 

Water year 1955-56:

4.44 

0.548 

0.63

5.33 

0.658 

0.76

12.9 

1.59 

1.72

12.3 

1.52 

1.75

Observed

11.1 

1.37 

1.53

7.58 

0.936 

1.08

Max 204 Mln 3.4 Mean 8.60 

Max 184 Mln 4.9 Mean 9.92

5.15 

0.636 

0.71

22.7 

2.80 

3.23

5.71 

0.705 

0.81

5.13 

0.633 

0.71

Adjusted

Mean 7.45 Cfsm 0.920 In. 12.51 

Mean 8.78 CfBin 1.08 In. 14.77

Peak discharge (base, 250 ofs). July 4 (4:30 p.m.) 1,880 cfs (8.47 ft); July 21 (1 a.m.) 1,440 

cfs (7.50 ft).

* Discharge measurement made on this day.

t Pumpage, in cubic feet per second, from Fatapsco River basin for municipal supply of Westminster; 

furnished by Maryland Water Works Co.

Note.--No gage-height record Nov. 26 to Dec. 16; discharge estimated on basis of recorded range In 

stage, weather records, and records for nearby stations.
522 POTOMAC RIVER BASIN

Owens Creek at Lantz, Md.

Location. --Lat 39°40'36" , long 77 "27 '50", on right bank half a mile west of Lantz Post 

Office (Deerfield station on Western Maryland Ry.), Frederick County, li miles south 

of Sablllasvllle, and 4| miles northwest of Thurmont

Drainage area. 5.93 sq ml.'

Records available . October 1931 to September 1956.

Gage . Water-stage recorder and concrete control. Altitude of gage Is 965 ft (from 

topographic map ) .

Average discharge .--25 years, 9.26 cfs (adjusted for diversion).

es. Maximum discharge during year, , 284 cfs Apr. 29 (gage height, 3.54 ft); minimum,

0.65 cfs Sept. 14 (gage height, 1.15 ft).

1931-56: Maximum discharge, 3,270 cfs Dec. 1, 1934 (gage height, 8.4 ft), from 

rating curve extended above 750 cfs on basis of slope-area determinations at gage 

heights 5.11 and 6.30 ft; minimum, 0.06 cfs Oct. 8, 1941, Sept. 7, 1944, not including 

water diverted above gage; minimum dally, including water diverted above gage, 0.18 cfs 

Sept. 20, 1932, Sept. 30, Oct. 7,8, 1941.

Revisions . The figures of maximum discharge for some water years have been revised 

as shown In the following table. They supersede figures published in the water-supply 

papers indicated. J

WSP

821 

971 

1141

Water 

year

1937 

1943 

1949

Date

Feb. 21, 

May 20 , 

July 18,

1937 

1943 

1949

Discharge 

(cfs)

945 

1,220 

1,190

Gage height 

(feet)

5.14 

5.66 

5.59

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair. A small diversion is occasionally made to Victor Cullen State Hospital 

at Cullen, half a mile above station (no water diverted this year).

Revisions foater years). WSP 1202: 1935(M). WSP 1382: Drainage area. The figures of 

peak discharge for water year 1949 have been revised as shown below, superseding figures 

published In WSP 1141.

Revised peak discharge.--1948-49- 

1,190 cfs. July 12 (7:30 p.m.) 1,040 cfs; July 18 (7:30 p.m.)

Rating table, water year 1955-56, except periods of Ice effect 

height, in feet, and discharge, in cubic feet per second)

1.2

1.3

1.4

1.5

1.6

1.7

1.8 

2.0 

2.2 

2.5 

3.0

17

31

67

152

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

3.3

2.8

2.5

2.4

2.4

3.9

3.7

5.7

3.4

2.7

*2.4

2.2

2.5

75

24

13

10

8.7

8.1

7.0

6.3

5.8

5.6

6.0

5.8

5.2

4.8

4.8

4.6

4.8

4.4

243.8

7.86

1.33

1.53

Nov.

4.0

3.9

4.0

3.9

3.7

3.6

3.9 *4.o

3.6

4.5

"5.8 10

4.8

4.4

4.2

4.6

4.2

3.6

3.9

4.0

4.2

4.2

4.2

4.0

3.7

3.7

3.6

3.6

b5.O

3,2

126.0

4.20

0.708

0.79

Dec.

2.9

3.2

3.6

3.9 374"

3.2

*Z.9

3.1

3.2

2.8

b2.7

b2.6

b2.5

b2.4

2.7

b2.1

2.5

2.5

2.6

2.2

2.1

b2.0

b2.0

b2.2

2.5

b2.2

bl.8

bl.6

T7a

2.0

1 . 8

79.0

2.55

0.430

0.50

Jan.

1.7

1.8

2.2

2.2

2.2

2.2

2.1

b2.0

1.7

3.6

6.8

5.6

3.7

3.3

b3.2

2.7

2.6

b2.6

b2.6

2.6

b2.5

2.4

b2.4

b2.3

b2.3

b2.2

b2.O

bl.8

b3.2

28

bll

117.5

3.79

0.639

0.74

Feb.

*b9.0 21 

27

14

16

21

27

23

2Z

21

24

22

18

16

17

15

13

31

23

19

16

b!4

b!2

bll

18

15

13

12

11

521.0

18.0

3.04

3.27

Mar.

10

10

9.8

9.4

8.4

8.4

14

21

16

14

14

14

13

51

30

24

21

18

17

16

16

18

21

26

21

21

19

18

18

18

16

551.0

17.8

3.00

3.46

Apr.

14

13

27

*21

18

23

59

43

30

26

24

21

19

18

17

17

14

14

13

12

11

11

11

12

11

11

10

9.8

44

32

605. 8

20.2

3.41

3.80

May

23

25

23

20

18

17

18

16

14

13

13

12

11

11

9.4

8.7

8.4

9.0

7.8

7.3

6.8

7.3

10

7.0

6.0

5.8

12

8.4

6.6

9.1

10

373.6

12.1

2.04

2.34

June

8.1

11

10

*7.8

7.3

6.6

6.3

5.4

5.6

5.4

5.0

4.4

5.0

3.9

3.6

3.4

3.2

4.0

3.7

3.4

4.2

3.6

2.9

2.8

2.5

2.4

2.9

2.2

2.O

270

140.6

4.69

0.791

0.88

July

1.9

1.8

6.9

3.9

3.9

5.8

2.8

2.2

2.5

2.0

1.8

1.7

2.4

2.2

1.7

1.7

1.8

*1.6

1.5

M

32

6.0

4.C

4.0

3.2

2.6

2.1

2.2

2.2

2.2

2.2

157.8

5.09

0.858

- 0.99

Aug.

2.1

1.9

1.8

1.9

3.9

3.7

3.1

2.5

2.0

1.7

1.5

1.5

1.5

1.7

1.4

1.2

1.1

1.0

1.0

2.2

5.8

i!s

1.3

1.2

1.1

1.1

1.0

1.0

.97

 93

56.50

1.82

0.307

0.35

Sept.

0.93

.97

.97

.89

.89

a2.3

al.4

al.O

al.O

al.O

al.2

al.O

*.97

.74

3.O "

2.0

1.2

.93

.89

1.2

.86

.89

1.1

1.5

.93

.83

3.7

5.8

2.2

1.6

43.89

1.46

0.246

0.28

Calendar year 1955: Max 252 Min O.60 Mean 9.13 Cfsm 1.54 In. 20.91

Water year 1955-56: Max 75 Min 0.74 Mean 8.24 Cfsm 1.39 In. 18.93

Peak discharge (base, 200 cfa). Apr. 29 (5:30 p.m.) 284 cfs (3.54 ft)j July 2O (7 p.m.) 216 cfs 

(3.29 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of available recorder trace, weather records, 

and records for nearby stations.

b Stage-discharge relation affected by ice.
POTOMAC RIVER BASIN 

Hunting Creek at Jimtown, Md.

523

Location. Lat 39°35'40", long 77°23'50", on right bank Just downstream from highway 

bridge, 0.4 mile southwest of Jimtown, Frederick County, about 2-J- miles southeast of 

Thurmont, and 2£ miles upstream from Little Hunting Creek.

Drainage area. 18.4 sq mi.

Records available. October 1949 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 355 ft (from topographic map).

Average discharge. 7 years, 87.6 cfs.

Extremes.--Maximum discharge during year, 918 cfs July 81 (gage height, 4.42 ft), from 

rating curve extended above 500 cfs by logarithmic plotting; minimum, 8.2 cfs Sept. 14.

1949-56: Maximum discharge, 1,170 cfs Sept. 1, 1952 (gage height, 4.94 ft), from 

rating curve extended above 500 cfs by logarithmic plotting; minimum, 1.0 cfs Aug. 1, 

2, 1954.

Remarks.--Records good except those for periods of ice effect, which are fair. Slight 

regulation at irregular intervals caused by pumpage at recreation camp near Foxville.

Revisions (water years). WSP 1338: 1958.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.3

1.4

1.5

1.6

1.7

1.6

4.4

9.6

18

29

1.8 

2.0 

2.5 

3.0

83

212

367

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

Cfam

In.

Oct.

8.4

7.8

7.3

6.7 

6.7

11

12

13

9.6

7.8

7.3

6.2

tt

~68" 170

34

24

21

19

16

14

13

13

13

14

13

12

12

12

14

13

605.0

19.5

1.06

1.22

Nov.

11

12

12

12 

11

11

11

*10

10

14

29

15

13

12

12

13

12

11

12

13

14

15

13

13

12

12

12

11

1^6

9 ' 6

377.2

12.6

0.685

0.76

Dec.

9.6

10

10

tt

9.6

 8.4

8.4

8.4

7.8

7.3

6.7

b6.4

b6.2

7.3

b6.2

b6.7

b6.7

b6.7

b6.0

b5.6

b5.0

67S

6.7

8.4

7.3

b5.4

b5.0

5.7

5.7

b5.0

225.4

7.27

0.395

0.46

Jan.

b5.0

5.2

6.2

6.2 

6.2

5.7

b5.7

b5.2

5.7

7.8

13

 14

9.6

7.3

b7.0

b6.8

6.7

6.7

6.7

b6.6

b6.4

b6.2

b6.0

b5.6

b5.6

b5.5

b5.3

5.3

7.8

50

29

276.0

8.90

0.484

0.56

Feb.

b20

»50

75

49

53

87

101

75

66

58

64

68

49

42

44

41

38

88

66

57

48

40

35

b32

51

46

36

32

28

1,539

53.1

2.89

3.11

Mar.

28

28

25

25 

.22

22

*34

60

41

35

35

41

41

*191

104

92

81

68

58

57

55

58

62

70

57

53

51

44

46

44

40

1,668

53.8

2.92

3.37

Apr.

35

34

67

53 

42

58

179

141

90

70

60

53

48

42

41

44

38

35

34

29

26

25

25

28

26

24

22

22

26

29

1,446

48.2

2.62

2.92

May

22

28

34

25 

22

22

*28

22

22

21

21

20

19

17

15

15

15

16

15

13

13

13

16

12

12

10

28

21

13

14

20

584

18.8

1.02

1.18

June

16

22

22

*T6 

13

12

11

9.6

9.6

10

9.6

7.8

7.8

7.3

6.7

7.3

6.7

7.3

7.8

7.3

9.0

9.0

7.3

10

6.7

6.2

5.7

4.8

4.4

4.4

284.3

9.48

0.515

0.57

July

4.0

4.0

8.5

12 

12

16

7.8

6.2

6.2

5.2

4.8

4.8

6.2

6.7

4.8

4.4

4.8

*4.4

4.0

171

226

42

25

22

19

15

12

10

9.0

8.4

8.4

694.6

22.4

1.22

1.4O

Aug.

7.8

*7.3

6.7

6.7 

12

13

10

9.0

7.3

6.2

6.2

5.7

5.7

6.2

5.2

4.4

4.0

4.0

3.7

6.2

21

7.8

5.7

5.2

4.4

4.0

4.0

4.0

3.7

3.4

3.4

203.9

6.58

0.358

0.41

Sept.

3.1

3.1

2.8

3.1 

3.1

5.7

5.7

3.7

3.1

3.4

4.0

3.7

3.1

3.4

6.2

6.7

4.8

4.0

3.7

4.0

3.1

3.1

3.1

4.4

3.7

3.1

5.8

15

7.3

4.8

133.8

4.46

0.242

0.27

Calendar year 1955: Max 584 Min 1.6 Mean 22.5 Cfsm 1.22 In. 16.61

Water year 1955-56: Max 226 Min 2.8 Mean 22.0 Cfsm 1.20 In. 16.23

Peak discharge (baae. 450 cfa). July 21 (l a.m.] 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

918 cfs (4.42 ft).
524 POTOMAC RIVER BASIN

Fishing Creek near Lewistovm, Md.

Location.--Lat 39°31'35", long 77°28'00", on left bank immediately upstream from Pishing 

Creek Reservoir, 50 ft downstream from Little Pishing Creek and 4.5 miles west of 

Lewistown, Frederick County.

Drainage area.--7.29 sq mi (revised).

Records available. October 1947 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 735 ft (from topographic map).

Average discharge. 9 years, 12.2 cfs.

Extremes. Maximum discharge during year, 190 cfs July 20 (gage height, 2.73 ft); minimum, 

2.7 cfs Sept. 23, 25, 26, 27.

1947-56: Maximum discharge, 500 cfs July 12, 1949 (gage height, 3.73 ft), from 

rating curve extended above 100 cfs on basis of slope-area determination of peak flow; 

minimum, 0.8 cfs Oct. 12-14, 1954.

Remarks.--Records good except those for periods of ice effect or doubtful or no gageheight record, which are fair.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to July 2O July 21 to Sept. 30

l.Z

1.3

1.4

1.9 

3.4 

6.0

1.5 

1.7 

1.9

1.2 1.5

1.3 3.0

1.4 5.4

1.5 8.7

Discharge, in cubic feet per second, water- year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfam

In.

Oct.

5.4

5.1

4.8

4.6

4.6

6.0

6.6

6.6

5.1

4.8

4.6

4.6

»4.3 2j~

18

13

12

11

10

9.5

9.1

8.6

8.2

8.2

8.2

7.8

7.8

7.8

7.4

7.8

7.4

254.9

8.22

1.13

1.30

Nov.

7.0

7.0

7.0

7.0

6.6

6.3

6.6

6.6

6.6

8.0

13

9.0

7.6

7.0

7.0

7.6

7.0

6.4

6.8

7.0

7.6

7.8

7.6

7.0

6.4

6.4

6.2

6.0

5.6

'

213.3

7.11

0.975

1.09

Dec.

5.6

6.0

6.4

7.0

676

6.4

*6.0

6.0

6.0

6.0

5.7

5.7

5.7

5.7

5.7

5.4

5.4

5.4

5.4

b4.8

b4.8

b4.8

5.1

5.1

5.4

4.8

4.6

b4.1

176

4.6

4.6

169.4

5.46

0.749

0.86

Jan.

4.3

4.3

4.3

4.3

4.3

4.3

4.3

b3. 9

4.1

4.6

5.1

5.1

4.6

4.3

4.1

4.1

4.1

3.9

3.9

3.9

3.9

3.9

3.9

b3.6

3.6

b3.5

b3.5

b3.3

4.3

8.2

6.3

133.8

4.32

0.593

0.68

Feb.

5.7

*10

14

13

14

18

24

25

26

26

28

28

26

23

23

21

20

27

24

24

23

21

20

19

21

19

17

17

16

592.7

20.4

2.80

3.02

Calendar year 1955: Max 207 Min 2.3

Mar.

16

16

16

14

14

14

15

17

14

14

15

17

16

37

37

35

32

30

26

24

24

24

26

26

26

26

24

23

23

23

22

686

22.1

3.03

3.50

Apr.

20

20

23

*21

20

21

37

38

35

32

29

26

24

23

22

21

20

19

18

17

16

16

16

16

14

14

14

13

13

12

630

21.0

2.88

3.21

May

12

13

13

12

11

11

12

11

10

10

10

10

10

10

9.5

10

9.5

9.5

9.1

8.6

8.2

8.2

8.2

7.8

7.8

7.4

15

T.5

7.8

8.2

9.1

308.4

9.95

1.36

1.57

June

8.6

10

9. 5

*8.2

8.6

8.6

8.2

7.8

7.8

7.8

7.4

7.0

6.6

6.6

6.3

6.3

6.3

6.3

6.6

6.0

7.4

6.6

5.7

7.8

6.0

5.7

5.4

5.1

4.8

1 4. o«

209.8

6.99

0.959

1.07

July

4.8

4.6

4.6

7.0

9.1

12

5.7

5.1

5.7

4.8

4.3

4.1

4.8

4.6

4.1

4.6

4.8

4.1

3.9

4l

dSl

d21

d20

25

21

18

16

14

12

11

10

362.7

11.7

1.60

1.85

Aug.

9.6

*9.1

8.3

7.9

10

9.6

8.3

7.6

6.8

6.5

6.2

5.9

6.2

6.2

5.4

5.0

4.5

4.2

4.2

5.0

10

6.0

5.4

5.0

4.4

4.0

3.8

3.8

3.5

3.3

3.3

189.0

6.10

0.837

0.96

Sept.

3.3

3.3

3.2

3.3

3.3

5.0

4.5

3.5

3.4

3.5

3.7

3.4

*3.0

3.0

3.7

3.9

3.0

3.0

3.0

3.4

2.8

2.8

2.8

3.2

2.8

2.7

574

5.9

377

3.2

104.7

3.49

0.479

0.53

Mean 11.3 Cfam 1.55 In. 21.12

Water year 1955-56: Max 51 Mln 2.7 Mean 10.5 Cfsm 1.44 In. 19.64

Peak discharge (base. 150 cfs).--July 20 (12 p.m.) 190 cfs (2.73 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of recorded graph, weather records, and 

records for nearby stations.

Note. No gage-height record Nov. 10 to Dec. 6, Aug. 15 to Sept. 12; discharge estimated on basis 

of recorded range in stage, weather records, and records for nearby stations.
POTOMAC RIVER BASIN 525

Linganore Creek near Frederick, Md.

Location. Lat 39°24'55", long 77°20'00", on left bank 2£ miles upstream from mouth and 

4 miles east of Frederick, Frederick County.

Drainage area.--82.3 sq mi.

Records available.--November 1931 to March 1932, September 1934 to September 1956.

Gage. Water-stage recorder. Concrete control since Sept. 23, 1946. Altitude of gage is 

270 ft (from topographic map). Nov. 27, 1931, to Mar. 26, 1932, staff gage at Frederick 

pumping station, l| miles downstream at datum about 20 ft lower. Sept. 12, 1934, to 

Sept. 25, 1946, staff gage at present site and datum.

Average discharge. 22 years (1934-56), 86.5 cfs.

Extremes. Maximum discharge during year, 2,860 cfs July 4 (gage height, 9.03 ft); minimum, 

16 cfs Jan. 8, result of freezeup.

1931-32, 1934-56: Maximum discharge, 4,130 cfs Aug. 13, 1955 (gage height, 11.39 ft), 

from rating curve extended above 1,500 cfs on basis of slope-area determination at gage 

height 10.01 ft; maximum gage height, 12.22 ft June 2, 1946; minimum discharge observed, 

6.0 cfs Oct. 9, 1941.

Flood of Aug. 23 or 24, 1933, reached a stage of 10.5 ft, from floodraarks (discharge, 

2,920 cfs).

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers Indicated.

WSP

800,801 

821,891

Water 

year

1934* 

1936 

1937

Date

Sept. 16, 

Mar. 11, 

June 17,

1934 

1936** 

1937**

Discharge 

(cfs)

t2,720 

1,680 

2,040

Gage height 

(feet)

tio.o

*7.4 

8.3

* Period Sept. 12-30.

** Date revised.

t Not previously published.

t From graph based on gage readings.

Remarks.--Records excellent except those for periods of ice effect or no gage-height 

record, which are fair.

Revisions (water years).--WSP 891: 1938-39. Figures of discharge at indicated times 

 which are above 610 cfs during March 1936, published in WSP 800, are considered to be 

in error and should not be used. Revised figures of discharge, in cubic feet per 

second, for September 1934, superseding those published in WSP 781, are given herewith:

Date

1934

Sept. 1

2

3

4

5

6

7

8

9

10

Discharge

alo

alo

alo

a20

al5

ais

a30

a loo

a50

aso

Date

1934-Con.

Sept. 11

12

13

14

15

16

17

18

19

20

Discharge

a23

21

34

73

43

780

214

89

62

49

Date

1934-Con.

Sept. 21

22

23

24

25

26

27

28

29

30

Discharge

64

154

80

65

56

47

74

56

67

270

Month

September 1934 .................

Maximum

780

Minimum

10

Mean

t87.0

Per square 

mile

1.06

Runoff In 

Inches

1.18

t Partly estimated.

a No gage-height record; discharge estimated on basis of records for nearby stations .
526 POTOMAC RIVER BASIN

Linganore Creek near Frederick, Md.--Continued

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 15 to Sept. 30

2.3 

2.7 

3.0 

3.5

69

107

217

4.0 

5.0 

6.0

357

726

1,280

2.0 

2.2 

2.5 

2.9 108

3.4 208

4.0 365

5.0 726

6.0 1,280

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

Z4

25

26

27

28

29

30

31

Ideal

Mean

Cfsm

In.

Oct.

47

44

44

43

43

49

51 

60

50

44

43

42

*41

771

216

90

70

62

58

55

54

53

51

51

51

51

51

51

60

120

70

2,586

83.4

1.01

1.17

Nov.

58

56

56

58

54

51

54 

58

*52

57

142

73

64

61

58

61

54

49

55

58

58

54

53

51

48

49

48

48

b41

b39

1,718

57.3

0.696

0.78

Dee.

b41

44

47

48

46

43

41 

43

44

42

38

b35

b33

b35

b39

b33

38

38

38

b35

b33

b32

37

38

42

b39

b35

b28

b30

b32

b30

1,177

38.0

0.462

0.53

Jan.

b29

b28

b31

b32

b32

b31

b29 

b26

b30

98

88

70

55

b45

b40

b39

b39

b36

b33

b42

b39

b38

b36

b31

b32

b32

b30

b29

b37

b240

165

1,562

50.4

0.612

0.71

Feb.

86

434

*326

263

244

590

446 

257

208

177

181

172

136

122

146

133

123

240

160

144

123

b!04

b94

b92

144

122

102

96

84

5,549

191

2.32

2.51

Calendar year 1955: Max 2,830 Min 17

Mar.

81

84

80

75

*72

72

80 

163

105

90

93

104

118

815

294

329

288

240

218

203

199

213

208

208

172

166

152

140

144

138

123

5,467

176

2.14

2.47

Apr.

115

113

163

140

113

*116

291 

242

172

152

138

127

120

113

116

125

106

102

96

92

86

85

85

89

86

85

80

78

74

70

3,570

119

1.45

1.61

May

67

72

79

74

67

66

*68 

63

59

59

59

59

58

54

52

53

50

53

50

49

47

47

48

45

43

43

67

57

46

48

63

1,765

56.9

0.691

0.80

June

154

98

86

59

*51

48

46 

43

43

44

41

38

37

36

35

35

34

38

39

36

40

40

44

226

43

37

36

34

32

11

1,604

53.4

0.650

0.72

July

30

29

39

802

326

413

89 

66

65

56

47

44

43

44

39

38

38

37

36

365

~53T 1.220

156

156

125

96

98

79

73

69

63

5,318

172

2.09

2.40

Aug.

59

57

*55

52

73

66

62 

55

50

47

44

43

43

46

43

40

39

38

37

38

79

47

41

39

37

36

35

35

34* *

oo

32.

1,435

46.3

0.563

0.65

Sept.

32

30

30

30

30

60

51 

34

32

30

30

32

30

28

30

36

31

28

28

40

28

28

29

36

30

28

49

101

46

37

1,084

36.1

0.439

0.49

Mean 84.2 Cfam 1.02 In. 13.90

Water year 1955-56 : Max 1,220 Min 26 Mean 89.7 Cfsm 1.09 In. 14.84

(7:30 p.m.) 1,740 cfs (6.77 ft); Mar. 14 (12:15 p.m.) 

cfs (9.03 ft); July 21 (8:30 a.m.) 2,690 cfs (8.68 ft)

b Stage-discharge relation affected by ice.

Note. No gage-height record Oct. 16 to Nov. 8; discharge estimated on basis of recorded range in

Peak discharge (base. 1.400 efs). Feb. 6

1,900 cfs (7.10 ft); July 4 (11 p.m.) 2,860 c

Discharge measurement made on this day

e rela

.gage-height . . 

stage, weather records, and records for nearby stations.
POTOMAC RIVER BASIN 527

Monocacy River at Jug Bridge, near Frederick, Md.

Location.--Lat 39°24'13", long 77°21'58", on right bank a quarter of a mile upstream from 

Jug Bridge, 0.35 mile downstream from Linganore Creek, and 2-| miles east of Frederick, 

Frederick County.

Drainage area. 817 sq mi.

Records available. November 1929 to September 1956.

Gage. Water-stage recorder and crest-stage indicator. Datum of gage is 231.92 ft above 

mean sea level (Corps of Engineers benchmark).

Average discharge. 27 years, 917 ofs.

Extremes.--Maximum discharge during year, 12,200 cfs Mar. 15 (gage height, 13.2 ft); minimum, 101 cfs Jan. 24, result of freezeup, but may have been less Jan. 8.

1929-56: Maximum discharge, 51,000 cfs Aug. 24, 1933 (gage height, 28.1 ft); minimum, 35 cfs Oct. 1, 1930.

Maximum'stage known, 30 ft in June 1889, from floodmarks (discharge, 56,000 cfs).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Revisions (water years ). WSP 711: 1930.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.5 

1.7 

2.0 

2.5

118

179

287

505

760

2,200

6,450

10,400

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

295

287

283

265

254

280

381

435

421

368

322

287

*272

3,440

8.120

2,220

1,420

1,100

908

772

672

602

553

519

505

491

467

435

435

607

692

28,108

907

1.11

1.28

Nov.

548

458

421

417

403

381

377

403

394

377

1,170

1,180

692

587

539

515

505

472

449

472

486

49S

519

472

440

408

a390

a370

a340

a300

14,981

499

0.611

0.68

Dec.

a280

a300

a320

a340

*a360

334

306

295

295

295

246

b230

b225

b220

b260

b210

b220

b240

243

b205

b200

b!90

b!95

204

221

239

218

blSO

b!70

b!90

b!75

7,606

245

O.3OO

0.35

Jan.

b!70

b!60

bT75

186

196

190

blSO

b!60

b!65

b260

355

403

386

306

265

276

265

225

214

221

236

261

232

182

b!75

b!75

b!70

b!60

blSO

444

1.760

8,733

282

0.345

0.40

Feb.

1,150

1,250

*3,900

3,520

2,670

4,000

7.660

3,670

2,680

2,230

1,990

3,020

1,940

1,500

1,480

1,580

1,310

3,290

4,030

2,020

1,620

1,310

1,090

992

1,160

2,130

1,480

1,160

98§

66,817

2,304

2.82

3.04

Mar.

826

796

796

737

667

632

677

*2,170

2,900

1,360

1,180

1,370

1,550

5,820

7.550

3,040

3,740

3,010

2,270

2,100

2,060

2,290

2,860

2,560

2,110

1,700

1,540

1,350

1,300

1,380

1,250

S3, 591

2,051

2.51

2.89

Apr.

1,070

971

1,280

3,120

*1,620

1,300

4,370

5.520

2,700

2,040

1,710

1,520

1,350

1,210

1,140

1,170

1,100

957

901

820

743

697

682

692

731

697

657

617

587

1,040

43,012

1,434

1.76

1.96

May

832

657

874

901

702

597

622

784

*612

539

524

515

524

999

548

463

426

417

408

386

355

334

351

515

355

314

368

529

426

343

408

16,628

536

0.656

0.7S

June

629

515

632

592

*440

368

330

303

280

276

276

257

239

228

225

218

214

265

330

318

265

272

305

957

5T5

287

214

190

172

156

10,268

342

0.419

0.47

July

149

146

166

2,110

2,250

1,690

880

482

549

592

*322

257

228

232

236

207

190

186

169

537

9.900

4,170

1,480

1,200

1,070

760

627

529

472

426

336

32,598

1,052

1.29

1.48

Aug.

355

334

*310

291

330

5OO

519

444

351

291

250

232

218

218

218

204

193

179

169

176

368

632

372

261

221

196

182

179

172

166

162^

8,693

280

0.343

0.40

Sept.

156

153

149

146

138

218

265

225

196

159

146

146

143

143

159

200

225

*207

182

218

204

176

172

193

200

221

280

708

500

364

6,592

220

0.269

0.30

Calendar year 1955: Max 14,400 Mln 96 Mean 840 Cfsm 1.O3 In. 13.96

Water year 1955-56: Max 9,9oo Mln 138 Mean 841 Cfsm 1.03 In. 14.01

Peak discharge (base. 8.800 efs).--Oct. 15 (8 a.m.) 10,800 cfs (12.3 ft); Feb. 7 (11:30 a.m.) 

9,800 cfs (11.6 ft); Mar. 15 (4 a.m.) 12,200 cfs (l3.2 ft); July 21 (7:3O p.m.) 12.0OO cfs 

(13.08 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and summation of records 

for upstream stations.

b Stage-discharge relation affected by Ice.
528 POTOMAC RIVER BASIN

Bennett Creek at Park Mills, Md.

Location. Lat 39"17'40", long 77°24 I 30", on left bank 75 ft downstream from highway 

 bridge, 0.2 mile south of Park Mills, Frederick County, 1.8 miles upstream from mouth, 

and 3.7 miles southwest of Urbana.

Drainage area. 62.8 sq mi.

Records available. July 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 240 ft (from topographic map).

Average discharge. 8 years, 65.7 cfs.

Extremes. Maximum discharge during year, 2.650 cfs July 4 (gage height, 8.80 ft in gage 

well, 9.21 ft from crest-stage indicator); minimum recorded, 7.0 cfs Dec. 16, result of 

freezeup.

1948-56: Maximum discharge, 3,230 cfs Nov. 21, 1952 (gage height, 10.34 ft in gage 

well, 10.77 ft from outside gage), from rating curve extended above 1,500 cfs on basis 

of slope-area determination at gage height 8.12 ft; minimum, 4.8 cfs Aug. 1, 2, 1954.

Remarks. Records excellent except those for periods of ice effect or no gage-height 

record, which are fair.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.1

1.2 

1.4 

1.6

19

45

80

2.0 

3.0 

4.0

195

605

1,O20

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

26

24

24

22

24

28

27

39

a30

a25

a23

a2Z

a21

257

*9T

50

41

36

34

31

30

27

27

27

27

27

26

26

31

45

39

1,207

38.9

0.619

0.71

Nov.

28

27

27

28

.26

26

28

32

27

*28

72

41

36

35

32

35

31

28

34

36

36

38

35

34

31

31

31

31

27

b26

977

32.6

0.519

0.58

Dec.

b26

27

28

30

27

26

24

25

25

25

b23

b21

19

b21

b23

b!9

20

22

22

b!8

18

b!7

21

21

24

24

19

b!7

19

»a22

a20

693

22.4

0.357

0.41

Jan.

a!9

a!7

a20

a21

a21

a2O

a!9

a!6

a!9

a60

a75

b62

45

36

b32

31

31

b27

b26

b32

b26

b26

b25

b22

b23

b23

b21

b20

30

b!50

113

1,108

35.7

0.568

0.66

Feb.

b64

256

195

*176

176

382

337

189

157

127

122

116

92

85

102

89

87

151

111

94

80 70

66

65

105

92

74

68

60

3,788

131

2.09

2.24

Mar.

56

58

55

53

50

50

50

124

*82

66

70

72

85

636

237

254

223

182

166

154

148

148

133

133

111

1O8

97

92

94

94

82

3,963

128

2.04

2.35

Apr.

76

72

87

82

7O

*76

168

160

1O5

89

85

76

72

66

70

80

66

63

60

56

53

53

53

55

52

53

50

50

47

i§

2,190

73.0

1.16

1.30

May

42

47

52

47

42

42

42

41

*38

38

39

39

38

36

34

35

32

35

34

34

3O

30

31

28

27

27

45

44

31

30

34

1,144

36.9

0.588

0.68

June

55

52

48

35

31

*30

28

27

26

27

25

22

21

21

19

19

19

19

21

19

22

22

21

69

30

21

22

19

18

iZ

825

27.5

0.438

0.49

July

17

16

18

378

627

175

65

48

49

42

32

28

*27

28

24

24

24

22

21

405

"92" 68O

70

70

61

48

44

41

38

36

34

3,284

106

1.69

1.94

Aug.

31

31

*30

28

32

36

34

30

27

25

22

22

22

25

22

21

19

18

18

19

41

25

21

20

18

18

18

18

17

17

16

741

23.9

0.381

O.44

Sept.

15

14

14

15

13

26

26

16

15

14

14

17

15

 14

16

18

25

27

17

25

17

16

17

20

18

16

73

66

32

24

653

21.8

0.347

O.39

Calendar year 1955: Max 1,580 Mln 5.5 Mean 51.5 Cfsm O.820 In. 11.12

Water year 1955-56: Max 680 Mln 13 Mean 56.2 Cfsm 0.895 In. 12.19

Peak discharge (base. 1,200 cfs). Mar. 14 (12 m.) 1,330 cfs (4.91 ft); July 4 (12 p.m.) 2,65O cfs 

(8.80 ft); July 21 (2 a.m.) 2.12O cfs (7.28 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, recorded range 

in stage when available, weather records, and records for nearby stations.

b Stage-discharge relation affected by ice.
POTOMAC RIVER BASIN 529

Goose Creek near Leesburg, Va.

Location. Lat 39°01'10", long 77°34'40", on left bank 400 ft upstream from highway bridge 

at Evergreen Mills, 1.4 miles downstream from Little River, 6.7 miles south of Leesburg, 

Loudoun County, and 10.9 miles upstream from mouth.

Drainage area. 338 sq mi.

Records available.--July 1909 to December 1912, January 1930 to September 1956.

Gage. Water-stage recorder. Datum of gage is 248.93 ft above mean sea level, datum of 

T929, Culpeper supplementary adjustment of 1943. July 12, 1909, to Dec. 31, 1912, 

staff gage at site 1,000 ft downstream at different datum. Jan. 21, 1930, to Nov. 28, 

1938, chain gage at site 400 ft downstream at datum 4.20 ft lower than present datum.

Average discharge.--26 years (1930-56), 303 cfs.

Extremes.--Maximum discharge during year, 32,800 cfs July 21 (gage height, 20.9 ft, from 

floodmark), from rating curve extended above 9,400 cfs as explained below; minimum, 

17 cfs July 3 (gage height, 1.62 ft).

1909-12, 1930-56: Maximum discharge, 45,000 cfs Aug. 26, 1937 (gage height, 26.86 

ft, from floodmarks, site and datum then in use), Oct. 16, 1942 (gage height, 22.9 ft, 

present datum), from rating curve extended above 9,400 cfs on basis of slope-area 

determination at gage height 22.9 ft; minimum daily, 0.4 cfs Sept. 29, 1941.

Maximum stage known, about 29 ft in May or June 1889, chain gage datum, from information by local residents.

Remarks.--Records good.

Revisions (water years).--WSP 851: 1935-37. WSP 951: 1933(M), 1937.

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

1.8 

2.0

16

33

63

161

310

550

4.0

6.0

9.0

13.0

17.0

1,390

3,490

5,880

9,880

17,200

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Cfsm

In.

Oct.

116

116

106

101

99

104

116

177

204

127

109

101

 97

905

66T

302

237

204

183

161

144 

132

122

116

116

109

109

99

99

104

106

5,482

177

0.524

0.60

Nov.

99

94

92

94

92

85

85

97

99

90

 144

141

101

92

85

90

94

81

81

99

101 

97

92

90

85

83

83

83

77

, 11

2,797

93.2

0.276

0.31

Dec.

73

81

83

90

92

83

77

a75

77

75

a74

a74

a74

a74

»a73

a70

a70

a75

a75

a70

a70 

a70

a70

a70

a75

75

a70

a65

a65

a70

a70

2,305

74.4

0.220

0.25

Jan.

a65

a65

a70

a70

a75

a75

a70

a65

a65

a70

187

*306

207

132

111

127

101

92

88

111

101 

92

92

79

79

85

71

71

92

340

601

3,855

124

0.367

0.42

Feb.

297

648

1,020

740

778

1,220

1.940

1,030

768

601

542

618

430

375

41O

370

360

442

375

335

302 

260

245

229

293

375

268

256

222

15,749

543

1.61

1.74

Mar.

204

204

197

187

171

167

171

320

375

256

241

233

268

2.100

*1,640

1,380

1,500

1,040

941

878

730 

635

550

512

442

416

375

345

350

360

302

17,490

564

1.67

1.92

Apr.

268

256

285

325

256

245

948

1.470

878

664

542

462

405

360

345

385

320

293

 276

245

225 

218

215

211

222

204

193

187

177

171

11,251

375

1.11

1.24

May

155

158

187

187

158

146

149

152

132

127

132

132

138

124

106

106

104

114

114

106

101 

94

94

 90

83

79

88

138

109

97

119

3,819

123

0.364

0.42

June

101

104

155

106

S3

73

67

63

58

58

58

52

 43

39

34

31

33

37

67

52

40 

43

342

379 102"

53

44

37

29

24

2,407

80.2

0.237

0.26

July

22

20

57

166

2,040

1,220

38O

403

1,320

444

 218

152

124

116

92

75

73

146

92

1,980

al7.000 

2,440

3,090

1,510

1,200

768

673

520

405

370

302

37,418

1,207

3.57

4.12

Aug.

268

24S

245

215

268

692 505"

430

310

256

215

225

225

200

al93

167

149

138

135

135

197 

187

138

124

106

1O4

99

94

92

85

II

6,524

210

0.621

0.72

Sept.

127

88

77

73

69

155

135

88

73

61

60

a61

63

57

57

75

90

116

77

73

73 

6O

57

85

90

67

382

847

297

187

3,820

127

0.376

0.42

Calendar year 1955: Max 5,520 Mln 6.7 Mean 258 Cfsni 0.763 In. 10.37

Water year 1955-56: Max 17,000 Mln 20 Mean 309 Cfsm 0.914 In. 12.42

Peak discharge (base. 4.000 cfs).--July 21 (about 8 a.m.) 32,800 cfs (20.9 ft); July 23 (1 a.m.) 

5,340 cfs (8.42 ft) .

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, high-water mark, 

and records for Difficult Run near Qreat Palls.
530 POTOMAC RIVER BASIN 

Seneca Creek at Dawsonvllle, Md.

Location. Lat 39°07'41", long 77°20'13", on right bank 60 ft downstream from bridge on

 State Highway 28, 150 ft downstream from confluence of Great Seneca and Little Seneca

Creeks, and half a mile east of Dawsonville, Montgomery County. 

Drainage area. 101 sq mi.

Records available.--September 1930 to September 1956.

Gage.--Water-stage recorder. Concrete control since Mar. 3, 1934. Datum of gage Is 

"214.15 ft above mean sea level, adjustment of 1912. Sept. 26 to Nov. 9, 1930, chain

gage and Nov. 10, 1930, to Apr. 6, 1934, water-stage recorder, at highway bridge at

same datum.

Average discharge.--26 years, 95.7 cfs. 

Extremes.--Maximum discharge during year, 15,000 cfs July 21 (gage height, 13.17 ft),

 from"rating curve extended above 2,000 cfs on basis of contracted-opening and flowover-road determination at gage height 9.78 ft; minimum, 13 cfs Dec. 28, Jan. 25, 

result of freezeup.

1930-56: Maximum discharge, that of July 21, 1956; minimum observed, 1.7 cfs 

Sept. 28, 29, 1930 (gage height, 0.56 ft). Revisions. The figures of maximum discharge for some water years have been revised, 

as shown In the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

756 

781 

921

Water 

year

1934 

1935

1941

Date

Sept. 17, 1934* 

May 7, 1935 

June 23, 1941*

Discharge 

(cfs)

2,410 

1,420 

1,300

Gage height 

(feet)t

7.3

6.1 

5.5

* Date revised.

T Prom reconstructed gage-height graph.

Remarks.--Recordr excellent except those for periods of ice effect or no gage-height

record, which arv fair. Small diversion for irrigation above station. 

Revisions' (water years). WSP 726: Drainage area. WSP 1232: 1930. WSP 1272: 1933.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.8

1.9 

2.1 

2.4 

2.8 

3.3

61

134

283

503

4.0 

5.0 

6.0 

7.0 

8.0 

9.0

770

1,100

1,460

2,050

3,100

5,010

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

*36

35

33

32

32

37

39

67

50

37

35

33

32

403

144

80

67

59

56

50

48

47

43

43

43

43

43

43

55

89

59

1,913

61.7

0.611

0.70

Nov.

*48

47

47

48

45

43

47

52

47

48

"65 106

57

54

52

54

48

43

52

57

59

63

57

54

50

50

48

48

43

a42

1,574

52.5

0.520

0.58

Dec.

47

43

45

47

43

42

40

40

42

42

37

b36

b34

b35

37

b35

b37

39

37

35

35

35

37

37

42

37

a33

a30

33

35

33

1,180

38.1

0.377

0.43

Jan.

32

*30

35

36

35

35

33

28

33

b86

bll6

99

72

56

47

47

47

42

40

48

b42

b42

40

b36

37

37

32

32

48

b540

1,889

60.9

0.603

0.70

Feb.

*b94

394

318

228

209

428

410

195

156

131

128

131

109

99

120

117

109

173

131

117

101

87

82

80

126

134

99

92

!§_

4,676

161

1.59

1.72

Mar.

76

76

74

69

§1

67

67

142

114

87

92

92

109

757

283

262

266

206

180

170

156

144

131

128

114

114

109

101

104

106

4,559

147

1.46

1.68

Apr.

92

89

106

109

94

94

184

202

128

114

106

101

96

92

96

128

106

94

89

84

80

80

78

78

78

78

76

74

72

69

2,967

98.9

0.979

1.09

May

65

69

8276"

69

65

65

63

59

59

61

61

61

56

52

52

48

52

48

48

47

47

47

45

43

43

63

74

48

50

50

1,768

57.0

0.564

0.65

June

*48

67

67

50

45

42

40

39

39

40

39

35

33

32

30

30

29

30

33

29

32

33

32

138

42

33

32

28

28

26

1,221

40.7

0.403

0.45

Calendar year 1955: Max 1,950 Min 4.4 Mean 65.5 Cfsm o 649

July

25

23

129

213

708

123

76

59

137

135

59

48

45

45

39

37

37

39

36

273

4,780

386

254

147

128

99

96

82

78

74

67

8,477

273

2.70

3.12

In.

Aug.

*61

59

57

56

59

65

61

57

52

48

47

43

43

47

45

40

37

36

36

43

92

56

45

40

36

36

36

35

33

323~2~

1,465

47.3

0.468

0.54

3.79

Sept.

30

29

28

27

27

37

55

32

29

28

28

29

29

28

30

37

39

64

33

43

32

30

32

47

37

30

175

224

80

57

1,426

47.5

0.470

0.53

Water year 1955-56: Max 4,78O Min 23 Mean 9O.5 Cfsm o.'s96 In- 12.19

Peak discharge (base. 1,300 cfs).--Mar. 14 (1:30 p.m.) 1.480 cfs (6.O5 ft); July 5 (3 a.m.) 

1,760 cfs (6.59 ft); July 21 (5 a.m.} 15,OOO cfs (12.17 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for nearby stations.

b Stage-discharge relation affected by ice.
POTOMAC RIVER BASIN 531

Difficult Run near Great Falls, Va.

Location. Lat 38°58'33", long 77°14'46", on right bank 300 ft downstream from Rocky Run, 

0.7 mile upstream from mouth, and 1.5 miles southeast of Great Falls, Fairfax County.

Drainage area.--58 sq mi, approximately.

Records available.--December 1934 to September 1956.

Gage. Water-stage recorder. Datum of gage is 151.30 ft above mean sea level, datum of T929.

Average discharge.--21 years (1935-56), 55.3 cfs.

Extremes.--Maximum discharge during year, 3,190 cfs July 21 (gage height, 10.96 ft), from

 rating curve extended above 1,100 cfs by logarithmic plotting; minimum, 9.5 cfs Dec. 28 

(gage height, 2.53 ft).

1934-56: Maximum discharge, that of July 21, 1956; minimum, 0.68 cfs July 4, 1955, 

caused by construction upstream; minimum daily, 1.8 cfs July 28, 29, 1955.

Remarks.--Records good except those below 25 cfs, which are fair. 

Revisions (water years) . WSP 951: 1936(M), 1937-38, 1939-40(M).

Rating table, water year 1955-56 (gage height, In feet, and 

discharge, In cubic feet per second)

4.0 112

4.5 

5.0 

6.0 

8.0

185

£86

558

1,300

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

^

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

a20

a25

a20

a!8

a!7

a!7

a 20

a40

a45

a25

a20

*a!8

17

~74 208

37

30

27

26

24

24

22

21

22

22

22

22

21

21 

35

28

988

31.9

0.550

0.63

Nov.

24

24

24

26

23_

23

24

29

26

26

*64

36

31

29

28

28

27

24

28

32

32

31

30

28

26

26

26

26

24 

24

849

28.3

0.488

0.54

Dec.

23

24

26

27

2E

26

25

25

26

26

24

24

24

*24

24

22

22

23

23

21

22

21

23

23

25

24

23

20

21 

22

21

730

23.5

0.405

0.47

Jan.

21

20

22

22

23

22

21

192~0~

*46

68

60

44

35

32

30

30

28

28

30

28

27

28

26

26

24

24

24

46 

140

1,089

35.1

0.605

0.70

Feb.

45

111

116

85

82

207

224

77

62

54

52

57

48

44

45

44

45

53

48

44

40

38

36

53

51

43

41

36

1,915

66.0

1.14

1.23

Mar.

36

36

36

35

34

34

37

213

96

58

53

50

60

*516 TB"6

121

126

85

80

79

74

65

58

55

49

49

48

46

48 

50

46

2,529

81.6

1.41

1.63

Apr.

42

42

49

53

45

46

109

~66" 142

56

52

49

46

44

46

77

56

49

*48

46

44

42

41

40

40

41

41

40

38

37.

1,567

52.2

0.900

1.00

May

36

38

45

42

38

36

36

36

34

33

33

34

33

31

28

29

28

31

29

26

26

26

26

*24

22.

22

26

36

25 

27

41

977

31.5

0.543

0.63

June

26

47

44

29

26

23

22

20

19

20

18

17

*16

16

15

15

15

15

18

16

17

33

63

28

24

18

17

15

15

II

680

22.7

0.391

0.44

July

13

12

12

42

514

55

36

28

31

31

*23

21

19

19

17

17

17

23

18

232

1.0708~9

343

80

58

44

96

44

37 

34

30

3,105

100

1.72

1.98

Aug.

28

28

29

26

31

46

35

33

28

26

23

23

26

24

*24

22

20

19

18

20

73

35

26

23

21

21

18

19

18 

17

17

817

26.4

0.455

0.52

Sept.

16

16

15

15

15

19

20

17

15

15

15

*15

15

14

14

19

16

23

15

26

17

15

16

21

17

16

271

298

35

1,089

36.3

0.626

0.70

Calendar year 1955: Max 1,670 Min 1.8 Mean 36.9 Cfsm 0.636 In. 8.63

Water year 1955-56 : Max 1,070 Min 12 Mean 44.6 Cfsm 0.769 In. 10.47

ischarge (base, 650 cfs).--Mar. 14 (6 p.m.) 817 cfs (6.81 ft): July 5 (12:30 p.m.) 852 cfs 

t); July 21 (2 a.m.) 3,190 cfs (l0.96 ft); Sept. 28 (1:30 a.m.) 852 cfs (6.88 ft).

Peak dls 

(6.92 ft)

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

Goose Creek near Leesburg.
532 POTOMAC RIVER BASIN

Potomac River near Washington, D. C.

Location. Lat 38°57'36", long 77"08'33", on right bank 1 mile upstream from Little Palls 

Dam, 1^- miles northeast of Langley, Fairfax County, Va., 2 miles upstream from 

District of Columbia boundary line, and 2^ miles upstream from Chain Bridge.

Drainage area. 11,560 sq ml.

Records available. March 1930 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 38.00 ft above mean sea level, adjustment 

of 1912. Prior to June 7, 1930, staff gage at same site and datum.

Average discharge. 26 years, 11,260 cfs (adjusted for diversions).

Extremes.--MaxImum discharge during year, 72,500 cfs July 21 (gage height, 10.75 ft); 

minimum, 1,430 cfs Jan. 9, result of freezeup.

1930-56: Maximum discharge, 484,000 cfs Mar. 19, 1936 (gage height, 28.1 ft); minimum daily, 448 cfs Aug. 25, 1930 (does not include 334 cfs diverted at Great Falls for 

water supply).

Flood of June 2, 1889, was of approximately the same magnitude as that of Mar. 19, 

1936.

Remarks. Records excellent except those for periods of ice effect, fragmentary or no 

gage-height record, or those after Jan. 31, which are fair. Diversion at Great Falls 

through aqueducts for municipal water supply of Washington, D. C. Low flow affected 

slightly by Stony River Reservoir (see p. 463) and since December 1950 by Savage River 

Reservoir (see p. 466).

Revisions. WSP 726: Drainage area.

Discharge, In cubic tober 1955 to September 1956

Day

1

z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

(t)

Oct.

3,290

3,130

3,090

2,900

2,840

2,840

2,940

3,320

3,290

3,160

3,060

3,060

3,060

4,960

15,200

13,200

10,300

*7,160

5,740

4,940

4,510

4,110

3,780

3,640

3,290

3,160

3,220

3,090 

3,060

3,260

3,130

137,730

4,443

+327

Nov.

3,220

3,130

3,220

3,090

2,970

2,900

2,870

2,940

2,940

2,940

3,320

4,110

4,350

3,780

3,740

3,670

3,740

3,600

*3,600

3,740

3,850

3,920

3,960

3,850

3,700

3,640

3,560

3,460 

3,560

3,400

104,770

3,492

+224

Dec.

3,100

3,030

3,030

2,940

2,970

2,840

2,810

2,870

3,130

3,190

3,030

2,750

2,550

2,450

2,500

2,100

2,300

2,400

2,400

2,200

2,100

2,000

2,000

2,050

2,200

2,400

*2,300

2,100 

2,000

2,000

1,900

77,640

2,505

+343

Jan.

1,9OO

1^850

1,900

2,100

2,200

2,300

2,200

2,000

1,900

2,300

3,000

3,400

3,600

3,100

2,900

2,700

2,700

2,600

2,400

2,300

2,300

2,300

2,600

2,400

2,200

2,100

2,000

2,000 

2,000

3,200

5_, 900

78,350

2,527

+337

Feb.

8,430

16,200

19 , 500

22,600

34,700

28,100

40,000

49,500

43,500

32,600

*26,000

24,200

24,200

22,100

18,900

16,900

15,700

16,200

22,200

32,100

28,100

21,200

17,900

15,300

14,000

13,000

13,000

14,300 

14 , 000

664,230

22 , 900

+354

Mar.

12,800

12,300

11,400

10,700

10,000

9,400

8,770

9,580

13,300

*14,900

14 , 900

14,600

13,900

20,400

36,200

54,400

53,200

39,800

32,500

27,800

24,600

a22,500

a21,700

a22,100

a21,700

20,200

18,900

16,900 

15,700

15,300

16,100

636,550

20,530

+357

Apr.

18 , 300

17,300

15,600

16,100

*18,900

18,900

18,000

32,600

*65,200

50,100

35,400

27,600

22,300

18,500

16,100

14,900

13,700

12,600

11,700

11,100

10,300

9,700

9,230

38,880

a8,770

38,650

38,600

a8,480 

a8,480

*a8,040

544,030

18,130

+357

May

8,370

7,700

7,480

7,820

8,150

9,110

8,880

8,370

8,200

8,480

8,480

7,820

7,540

7,320

7,540

8,200

7,430

6,950

6,640

6,430

6,280

6,430

6,030

5,640

5,590

5,310

6,080

6,230 

6,180

11,100

14,600

236,380

7,625

+340

June

11.400

9,880

8,880

8,540

*8,880

11,300

9,940

8,370

7,110

6,230

5,450

4,940

4,550

4,110

3,740

3,460

3,520

3,320

3,810

4,680

6,590

6,540

5,830

6,430

6,800

5,540

4,810

3,810 

3,420

3,530

185,210

6,174

+330

July

3,600

3,190

2.750

3,600

13,500

10,100

9,290

8,940

9,880

9,460

6,330

4,900

4,040

3,600

3,360

*3,060

E.780

E.940

E,870

3,620

52,400

30,200

20,000

13,000

11,800

10,000

9,000

7,820 

6,590

5,740

5,310

283,670

9,151

+327

Aug.

4,990

4,990

4,850

4,350

4,070

4,390

4,720

20,100

22,200

»14,700

10,800

8,370

6,900

5,930

5,120

4,600

4,150

3,810

3,640

3,560

3,740

3,890

3,960

6,560

6,480

5,310

4,310

3,700 

3,360

2,940

2_,840

193,330

6,236

+330

Sept.

2,750

3,090

3,220

3,060

2,870

3,060

3,260

3,220

2,970

2,690

2,580

2,580

2,580

2,440

2,340

2,420

2,300

2,640

2,690

*2,640

2,640

2,610

2,470

2,550

2,420

2,240

2,790

4,270 

4,070

3,780

85,240

2,841

+328

Adjusted for diversion

Mean 

Cfsm 

In.

4,770 

0.413 

0.48

3,716 

0.321 

0.36

Calendar year 1955: 

Water year 1955-56:

2,848 

0.246 

0.28

2,864 

0.248 

0.29

23,250 

2.01 

2/17

20,890 

1.81 

2.09

18,490 

1.60 

1.78

7,965 

0.689 

0.79

Observed

Max 207,000 Mln 1,320 Mean 11,180 

Max 65,200 Mln 1,850 Mean 8,817

6,504 

0.563 

0.63

9,478 

0.820 

0.94

6,566 

0.568 

0.65

3,169 

0.274 

0.31

Adjusted

Mean 11,500 Cfam 0.995 In. 13.50 

Mean 9,147 Cfam 0.791 In. 10.77 __________I -I 

Peak discharge (base, 45,000 efs).--Feb. 8 (3 p.m.) 50,100 cfs (8.90 ft); Mar. 16 (9:30 p.m.) 

62,000 cfs (9.92 ft); Apr. 9 (11 a.m.) 68,60O cfs (10.46 ft); July 21 (12:30 p.m.) 72,500 cfs 

(10.75 ft).

* Discharge measurement made on this day.

t Diversion, In cubic feet per second, for municipal supply of Washington, furnished by Corps of 

Engineers.

a Fragmentary or no gage-height record; discharge estimated on basis of record for adjacent days 

and summation of records for upstream stations.

Note.--Stage-discharge relation affected by Ice Nov. 30, Dec. 1, Dec. 13 to Jan. 31.
POTOMAC RIVER BASIN 533

Little Falls Branch near Bethesda, Md.

Location. Lat 38°57'27", long 77°06'3l", on left bank at downstream side of bridge on 

Massachusetts Avenue, 2.0 miles southwest of Bethesda, Montgomery County.

Drainage area. 4.1 sq mi, approximately. 

Records available. June 1944 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 170 ft (from topographic map}.

Average discharge. 12 years, 3.34 cfs.

Extremes. Maximum discharge during year, 742 cfs Oct. 14 (gage height, 3.68 ft), from 

rating curve extended above 630 cfs as explained below; minimum, 0.11 cfs Sept. 4, 5, 

21-23, 26.

1944-56: Maximum discharge, 2,340 cfs July 31, 1945 (gage height, 7.50 ft), from 

rating curve extended above 630 cfs on basis of slope-area determination at gage height 

5.63 ft; no flow at times in 1944, 1954.

Remarks. Records fair except those for periods of backwater or doubtful or no gage-height 

record, which are poor.

Revisions (water years). MSP 1171: 1945.

Rating table, water year 1955-56, except periods of backwater from unknown 

cause (gage height, in feet, and discharge, in cubic feet per second)

1.0

1.1

1.2

1.3

1.4

1.5

0.06 

.17 

.61

1.5

3.6

7.7

1.6 

1.8 

2.0 

2.2 

2.4

110

175

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

0.30

.25

.20

.25

.27

.76

*.25

18

.55

.39

.30

.30

1.8

113

2.5

1.3

1.0

.92

c.76

0.61

.61

.61

.61

.92

1.3

1.0

.92

.92

2.9 

2.4

.61

156.51

5.05

1.23

1.42

Nov.

0.55

*.50

2.0

.50

.46

.46

2.8

.76

.50

9.3

2.7

0.84

0.68

.68

1.4

1.0

.84

cl.2

02.8

cl.l

.S4

.76

.68

.68

c.62

0.56

0.56

c.52

0.50 

.50

37.29

1.24

0.302

0.34

Dec.

0.60

.60

.60

.60

.60

.60

.60

.60

.90

.60

.60

.55

.50

.60

.60

.50

.60

.60

.60

.60

*.55

.55

.60

.60

.55

.50

.46

.42

746 

.50

.46

17.70

0.571

0.139

0.16

Jan.

0.55

.46

.50

.55

.46

.46

.46

.39

.46

9.9

3.5

3.1

1.2

.92

.76

.76

2.4

.84

.76

1.8

.80

.70

.60

.60

.50

.60

.50

.50

7.1 

7.4

1.8

51.33

1.66

0.405

0.47

Feb.

12 1.1

4.0

*9.2

2.8

23

5.8

3.0

2.5

2.3

3.8

2.0

1.7

1.8

2.1

1.7

3.0

3.4

1.5

1.4

1.3

1.1

1.1

4.1

4.2

1.5

1.4

1.4

1.3

105.5

3.64

0.888

0.96

Mar.

1.3

TTJ

ol.4

ol.3

1.3

1.4

4.0

15

2.3

1.7

2.0

2.0

3.5

70

5.0

*15

5.1

3.9

6.5

3.3

2.8

2.5

2.3

2.3

2.0

2.0

2.0

2.0

2.7 

2.1

1.8

171.9

5.55

1.35

1.56

Apr.

1.8

cl.7

05.2

cl.7

el. 5

8.0

14 "2.8

2.0

1.8

1.7

*1.5

1.4

1.4

2.9

13

.5

.5

c .4

o .4

c .4

o .4

1.4

1.5

1.4

2.3

1.5

1.7

1.5 

1.5

S3. 8

2.79

0.680

0.76

May

1.7

4.4

*2.4

1.2

1.0

.92

1.4

c.92

c.92

cl.l

cl.l

ol.l

cl.l

el. 8

0.84

c.68

cl.5

1.2

.68

.68

.55

1.3

.92

.55

.55

.50

7.5

1.2

.55 

15

»1.2

56.46

1.82

0.444

0.51

June

2.2

~T.3 15

.84

.61

.55

c.50

0.50

c.46

e.46

.55

.46

.42

.46

.50

.79

.91

.63

.50

.52

1.3

9.3

1.4

3.9

o2.4

c.50

03.4

.84

.76 

. 68

52.64

1.75

0.427

0.48

July

0.61

.68

.73

20

20

.84

.55

.42

*5.9

.76

.42

.35

.35

.25

.17

.20

1.8

0.54

c.17

50

3.0

16

5.2

1.8

.76

.46

18

.76

.46 

.46

.46

152.10

4.91

1.20

1.38

Aug.

0.42

.50

.46

.42

2.4

1.6

.46

*.39

.35

.30

.20

.17

.17

.47

.39

.17

.15

.15

.14

12.

7.5

.50

.35

.20

.15

.14

.15

.15

.14 

.13

722

35.94

1.16

0.283

0.33

Sept.

0.13

.12

.13

.12

.13

2.5

.25

.14

.13

.13

.14

.14

.14

.14

1.8

.23

2.3

.29

.49

4.4

.11

TIT

.21

*1.1

.14

.12

69

3.3

.50 

.25

88.69

2.96

0.722

0.80

Calendar year 1955: Max 156 Min 0.10 Mean 3.09 Cfsm 0.754 In. 10.24

Water year 1955-56: Max 113 Min 0.11 Mean 2.76 Cfsm 0.673 In. 9.17

Peak discharge (base, 450 ofs).--0ct. 14 (2:30 a.m.) 742 ofs (3.68 ft); July 20 (8 p.m.) 525 cfs 

(3.19 ft); Sept. 27 (2:30 p.m.) 54O cfs (3.22 ft).

* Discharge measurement made on this day.

o Backwater from unknown cause.

Note.--Doubtful or no gage-height record Nov. 30 to Dec. 20, Dec. 23, 24, Jan. 21-28, Mar. 5-16; 

discharge estimated on basis of recorded range in stage, weather records, and records for nearby 

stations.

505690 O-59-35
534 POTOMAC RIVER BASIN

Rock Creek at Sherrill Drive, Washington, D. C.

Location. Lat 38°58'21", long 77°02'25", on left bank 600 ft downstream from Sherrill 

Drive Bridge In Rock Creek Park In Washington and 1\ miles upstream from mouth.

Drainage area . 62.2 sq ml.

Records available . October 1929 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage Is 148.99 ft above mean 

sea level, adjustment of 1912.

Average discharge.--27 years, 56.3 cfs.

Extremes.--Maximum discharge during year, 7,220 cfs July 21 (gage height, 13.19 ft, from 

high-water mark on Inside of gage house door), from rating curve extended above 4,400 

cfs on basis of contracted-opening determination at gage height 13.19 ft; minimum, 

5.7 cfs Jan. 8, result of freezeup; minimum dally, 8.5 cfs Sept. 5.

1929-56: Maximum discharge, that of July 21, 1956; minimum, 0.5 cfs Oct. 1-7, 1930 

(gage height, 1.04 ft).

Revisions.--The revision of maximum discharge for the water year 1933 published In 

WSP 1272 should not have been made. The original published figure of 4,460 cfs Aug. 24, 

1933 (gage height, 11.6 ft) should be used.

Remarks.--Records excellent except those for periods of Ice effect or no gage-height record, which are fair.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, Ln feet, and discharge, in cubic feet per second)

1.2

1.3

1.5 

1.8 

2.1 177

2.5 

3.0 

4.0 

6.0 

9.0

297

456

770

1,370

2,550

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

16

16

16

15

li

18

*18

155

42

Z3

20

18

22

932

132

50

36

34

30

28

26 

25

25

23

24

23

22

22

28

34

25

1,912

61.7

0.992

1.14

Nov.

23

22

25

26

23

22

29

31

25

40

84

36

30

29

29

29

26

25

35

35

31 

31

29

28

26

24

25

24

23

21

886

29.5

0.474

0.53

Dec.

21

24

*24

24

24

23

23

22

23

11

21

b!9

b!8

b20

23

15

22

21

20

b!7

20

21

21

21

21

21

b!5

b!4

b!7

20

18

638

20.6

0.331

0.38

Jan.

18

16

18

18

18

18

b!5

b!3

18

92

81

52

39

33

26

25

26

25

b23

b31

b25 

b25

26

b20

b!7

b21

b!7

b!7

49

184

139

1,145

36.9

0.593

0.68

Feb.

b41

172

163

loo

100

*237

E55 ~82

61

54

54

55

46

41

46

49

49

70

59

46

39 

36

33

36

66

70

44

39

35

2,178

75.1

1.21

1.30

Mar.

33

35

34

33

11

31

47

177

82

49

47

52

54

702

196

144

171

98

98

91

76 

66

61

57

50

47

47

44

46

47

44

2,790

90.0

1.45

1.67

Apr.

41

39

57

55

44

52

115

122

61

50

47

44

42

41

46

98

61

47

*44

42

41 

41

39

38

38

39

39

38

36

5±

1,531

51.0

0.820

0.92

May

32

40

*47

49

52

36

35

34

31

31

30

30

31

30

28

26

26

30

26

28

26

28

26

24

23

59

47

28

40

*35

1,034

33.4

0.537

0.62

June

30

60

35

30

26

23

22

21

21

23

22

20

18

17

16

16

15

16

17

14

15 

16

16

40

20

15

13

12

12

*i!

632

21.1

0.339

0.38

July

11

11

10

20

197

29

21

18

*46

32

14

14

13

13

13

12

12

12

12

23

*2,540 ~98

153

50

39

31

61

29

25

22

21

3,602

116

1.86

2.15

Aug.

21

21

21

20

23

25

22

*20

18

17

16

15

15

18

16

15

14

13

13

20

50 

25

15

14

13

13

13

13

12

11

TT

553

17.8

0.286

0.33

Sept.

11

11

10

9.3

8.5

14

42

14

9.3

*9.3

9.3

9.3

9.3

9.3

14

16

14

15

14

29

13 

9.3

10

23

16

11

325

17T

36

23

920.9

30.7

0.494

0.55

Calendar- year 1955: Max 2,020 Min 2.4 Mean 45.2 Cfsm 0.727 In. 9.86

Water year 1955-56: Max 2,540 Mln 8.5 Mean 48.7 Cfsm 0.783 In. 10.65

Peak discharge (base, 680 efs).--0et. 14 (3 a.m.) 1,270 cfs (5.67 ft); Feb. 7 (12:30 a. 

(3.71 ft); MarT 14 (9:30 a.m.) 845 cfs (4.25 fb); July 21 (11 a.m.) 7,220 cfs (13.19 ft); 

(3:30 p.m.) 851 cfs (4.27 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--No gage-height record Oct. 26 to Nov. 2, Apr. 30 to May 2, June 1-29, July 12-21, Aug. 8- 

26 ; discharge estimated on basis of recorded range in stage when available, weather records, and records for nearby stations.

.m.) 683 cfs 

Sept. 27
POTOMAC RIVER BASIN 535

Northeast Branch Anacostia River at Riverdale, Md.

Location. Lat 38°57'37", long 76°55'34", on right bank at downstream side of bridge on 

Riverdale Road in Riverdale, Prince Georges County, if miles downstream from Indian 

Creek and if miles upstream from confluence with Northwest Branch.

Drainage area. 72.8 sq mi.

Records available. August 1938 to September 1956.

Gage . Water-stage recorder. Datum of gage is 14.00 ft above mean sea level (Washington 

Suburban Sanitary Commission benchmark). Prior to June 12, 1942, wire-weight gage at 

same site and datum.

Average discharge . 18 years, 79.3 cfs.

Extremes.--Maximum discharge during year, 2,870 cfs Oct. 14 (gage height, 6.38 ft, from 

high-water mark in gage well); minimum, 9.2 cfs Sept. 5.

1938-56: Maximum discharge, 3,680 cfs July 18, 1945; maximum gage height, 12.93 ft 

Oct. 16, 1942; minimum discharge observed, 5.6 cfs Sept. 29, 30, Oct. 1, 1941.

Maximum stage known, about 15.5 ft Aug. 23 or 24, 1933, from floodmarks (discharge, 

10,500 cfs, from rating curve extended above 3,000 cfs on basis of velocity-area study),

Remarks . Records good Oct. 1-7, Oct. 14 to Nov. 8, remainder fair.

Rating tables, water year 1955-56 (gage height, in feet, and discharge, in cubic

feet per second) 

(Shifting-control method used Oct. 8-13, Nov. 9 to Dec. 14, Jan. 1O to Mar. 7)

Oct. 14 to Nov. 8 Nov. 9 to Sept. 30

2.4 

2.6 

2.8 

3.0 

3.2 102 

Discharge, In

1.8 

2.0 

2.3 

2.6

32

53

106

182

3.0 

4.0 

5.0 

6.0

314

820

1,530

2,460

1.7 

1.9 

2.1 

2.4 

2.7

10

21

39

81

144

3.0 

3.5 

4.0 

5.0

228

410

635

1,190

;ublc feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

23

21

18

16

18

*25

17

99

46

28

26

24

33

*2,160

540

171

96

68

59

*47

43

41

37

36

36

36

*34

34

35

36

40

3,943

127

174

2.01

Nov.

*36

36

37

37

35

34

38

41

38

*73

260

TI4

70

43

35

37

28

23

*57

50

45

55

*45

40

38

37

36

35

33

29

1,515

50.5

0.694

0.77

Dec.

25

35

43

46

*36

32

31

31

36

38

38

26

33

32

*35

27

32

31

31

26

21

21

21

26

29

29

20

19

17

19

18

904

29.2

0.401

0.46

Jan.

18

18

18

20

23

21

*21

18

40

65

78

92

85

55

*45

39

44

35

41

51

*34

36

37

30

38

31

26

28

66

iTo" 173

11.0

1,444

46.6

0.640

0.74

Feb..

302

186

*216

155

130

344

426

178

103

88

*80

88

78

52

61

68

70

*103

83

65

52

50

44

47

*97

88

67

55

47

3,423

118

1.62

1.75

Mar.

47

*47

46

41

40

40

*51

*330

295

144

114

HE

192

*940

468

*254

254

165

149

127

125

*114

99

86

75

73

68

62

64

*65

59

4,746

153

2.10

2.42

Apr.

55

51

76

81

68

84

115

216 122"

86

75

65

61

58

64

118

*86

73

61

58

52

49

46

45

44

*50

49

47

46

44

2,145

71.5

0.982

1.10

May

*41

47

62

81

85.

65

54

*47

43

40

39

39

40

35

30

31

28

34

*32

28

27

34

30

27

26.

26

55

*55

36

31

29

1,277

41.2

0.566

0.65

June

32

89

90

*52

37

32

30

29

28

29

27

25

23

22

27

55

30

23

23

22

28

30

28

36

29

20

45

*36

22

22

1,019

34.0

0.467

0.52

July

19

16

16

112

*256

67

36

27

39

43

29

*22

19

19

16

15

15

19

*17

152

232

65

51

41

35

27

61

26

21

20

19

1,552

50.1

0.688

0.79

Aug.

*17

16

14

17

19

20

21

*19

16

15

14

13

IB" 12

14

13

12

12

12

19

*68

28

20

16

14

12

14

13

12

12

*12

531

17.1

0.235

0.27

Sept.

11

10

To

10

10

18

21

16

14

*12

12

12

12

13

18

17

20

17

16

29

17

17

16

20

17

16

"^91 145

39

27

703

23.4

0.321

0.36

Calendar year 1955: Max 2,320 Min 6.8 Mean 66.5 Cfsm O.913 In. 12. 4O

Water year 1955-56: Max 2,160 Min 10 Mean 63.4 Cfsm 0.871 In. 11.84

Peak discharge (base. 1.250 efs). Oct. 14 (5 a.m.) 2,870 cfs (6.38 ft); Mar. 14 (12 : 3O p.m.) 

1,270 cfs (5.12 ft).

* Discharge measurement made on this day.
536 POTOMAC RIVER BASIN

Northwest Branch Anacostia River near Colesville, Md.

Location. Lat 39°03 I SS", long 77°01'48", on right bank 400 ft upstream from bridge on

State Highway 183, 1-J miles southwest of Colesville, Montgomery County, 3 miles upstream 

from Burnt Mills, and 10 miles upstream from Sligo Branch.

Drainage area.--21.3 sq mi.

Records available.--February 1924 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage is 264.85 ft above mean 

sea level, adjustment of 1912. Prior to Apr. 22, 1932, staff gages in same general vicinity at different datum. Apr. 22, 1932, to Apr. 11, 1934, staff gage at present site 

and datum.

Average discharge. 32 years, 22.3 cfs (unadjusted).

Extremes.--Maximum discharge during year, 1,550 cfs July 21 (gage height, 8.86 ft); minimum, 2.2 cfs Jan. 8, Aug. 31.

1924-56: Maximum discharge, 4,910 cfs Aug. 8, 1953 (gage height, 10.99 ft), from 

rating curve extended above 1,200 cfs on basis of contracted-opening and flow-over-road 

determination of peak flow; minimum, 0.4 cfs Aug. 11,12, 1930, Sept. 2, 1932.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

581

601

681

696

1141

871

891

971

1001

1031

1051

1111

Water 

year

1924

1925

1929

1930

1933

1939

1940

1943

1944

1945

1946

1948

Date

Sept. 29, 1924

Feb. 8, 1925

June 21 or 22, 1929

Mar. 8, Apr. 6,1930

Aug. 23, 1933

Jan. 30, 1939

Apr. 8, 1940

May 12, 1943

Nov. 8, 1943

July 27, 1945

May 28, 1946

Jan. 1, 1948

Discharge 

(cfs)

2,230

692

913

964

b4,500

680

730

1,160

1,320

2,020

1,320

1,190

Gage height 

(feet)

a7.99

a5. 05

a5.80

a6.0

a9.3

5.60

5.82

a7.06

7.37

8.37

7.33

7.10

a From high-water mark.

b Reconfirms figure published in WSP 741.

Remarks.--Records good except those for periods of ice effect or doubtful or no gage-height 

record, which are fair. Records include inflow pumped from Patuxent River to augment 

water supply for Washington Suburban Sanitary District, which began Aug. 12, 1939.

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

1925-26, 1939, 1943-46, 1948-49, superseding those published in WSP 601, 621, 871, 971, 

1001, 1031, 1051, 1111, and 1141 are given herewith. Revised peak discharges only are 

given for water years 1939, 1948-49.

Date

1925

Jan. Z

3

4

5

6

7

8

9

10

11

12

13

14

15

Discharge

16

16

15

15

15

14

14

15

15

16

16

15

15

15

Date

1925-Con.

Jan. 16

22

23

24

25

26

27

28

29

1926

Mar. 4

9

14

Discharge

17

28

25

22

20

19

17

16

16

16

21

15

Date

1942

Oct. 15

16

26

1943

May 12

Nov. 8

9

1945

Jan. 1

13

16

June 19

Discharge

36

370

200

370

356

93

386

77

118

73

Date

194 5 -Con.

June 20

21

22

July 15

17

18

19

22

26

27

28

Nov. 22

28

Discharge

171

109

177

120

59

382

148

78

35

470

50

87

326

Month

Calendar year 1925. ......

Calendar year 1942 .......

water year 1942-43 .......

Water year 1943-44 .......

water year 1944-45. ......

Cfs-days

_

_

-

_

-

1,141

6,853.6

884

8,414.1

7,747.8

2,132.7

9,122.3

Maximum

213

469

370

370

370

370

370

367

386

177

470

470

Minimum

2.0

2,5

2.5

10

4.1

13

8.5

11

6.6

5.9

10

6.3

8.2

5.9

Mean

28.2

19.8

18.1

16.9 n

19.0

23.2

36.8

18.8

28.5

23.1

28.7

22.8

21.2

33.3

28.6

68.8

25.0

Per square 

mile

1.32

.930

.850

.793

.892

1.09

_

-

_

-

_

_

-

-

-

-

~

Runoff In 

inches

1.52

12.63

11.54

.91

12.09

14.76

_

-

_

-

_

-

-

-

-

-

-
POTOMAC RIVER BASIN 

Northwest Branch Anacostia River near Colesville, Md. Continued

537

Revised figures of monthly discharge, In cubic feet per second, 1925-26, 1943-46 Continued

Month

Water year 1945-46. ......

Cfs-days

10,233.5

8,751.6

Maximum

414

Minimum

9.5

7.4

Mean

27.7

28.0

24.0

Per square 

mile

_

_

-

Runoff In 

Inches

_

_

-

Revised peak discharge. 1958-59: Jan. 30 (ll a.m.) 680 cfs; Feb. 3 (4 p.m.) 668 cfs; 

Feb. 28 (3 p.m.) 620 cfs.

1942-43: Oct. 15 (about 12 p.m.) 1,140 cfs; May 12 (10 a.m.) 1,160 cfs.

1943-44: Nov. 8 (9:30 p.m.) 1,520 cfs; Jan. 5 (8:50 p.m.) 730 cfs.

1944-45: Jan. 1 (3 p.m.) 1,360 cfs; June 20 (1 a.m.) 718 cfsj June 21 (10:30 p.m.) 1,050 

cfs; July 18 (5 a.m.) 1,160 cfs; July 27 (l a.m.) 2,020 cfs; Sept. 18 (about 12 m.) discharge unknown.

1945-46: Nov. 28 (2 p.m.) 1,010 ofs; Dec. 6 (1 a.m.) 1,070 cfs; May 28 (4 a.m.) 1,320 

cfs.

1947-48: Nov. 8 (10:30 a.m.) 705 cfs; Nov. 12 (2 a.m.) 680 cfs; Jan. 1 (7:30 p.m.) 1,190 

cfs; Feb. 14 (7 p.m.) 840 cfs.

1948-49: Nov. 29 (2 a.m.) 620 cfs; Dec. 30 (12:20 p.m.) 540 cfs; Jan. 6 ( 1 a.m.) 670 cfs; 

Mar. 25 (6 a.m.) 620 cfs; May 24 (11:45 p.m.) 570 cfs.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge. In cubic feet per second)

1.5

1.6

1.7

1.8 

2.0

1.7 

3.8

25

2.4 

3.0 

4.0 

5.0

70

169

320

465

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

»6.6

6.6

6.3 

tt

6.3

7.0

6.6

38

13

8.3

7.4

7.0

8.5 *dSi

20

16

14

13

11

11

10

9.8

9.8

9.8

10

10

10

11

14

11

796.3

25.7

0.01

Nov.

10

11

11 

13

10

10

11

13

11

13

26

14

13

12

11

11

10

9.8

12

13

14

15

13

12

11

11

11

11

9.8

9.5

361.9

12.1

0.01

Dec.

9.3

10

tt

11

10

10

10

1111

9.8

9.8

b9.3

dlO 

dlO

b8.0

d9.8

d9.8

d9.8

d9.0

*b8.0

b8.0

9.3

9.8

11

10

b9.5

b8.6

b9.3

9.3

8.8

301.2

9.72

0.02

Jan.

8.8

8.8

9.3 

8.8

8.3

8.3

*7.8

b6.0

7.0

43

22

22

17

14 

12

11

11

9.8

10

12

9.3

9.8

10

b7.5

b8.4

b7.6

b7.0

b7.2

11

qc

1

464.7

15.0

0.02

Feb.

*19

al20 ~49 

46

37

106

66

30

24

21

20

24

19

17 

20

20

20

30

22

20

17

15

14

T4

30

27

19

17

14

897

30.9

0.01

Mar.

*14

15

14 

14

13.

13

15

66

28

20

22

22

29

 289 

44

d61

48

33

32

33

30

25

23

22

19

19

18

17

18

19

17

1,052

33.9

0.02

Apr.

16

16

22 

22

18

19

46

40

23

20

19

18

17

16 

18

34

20

18

*17

16

16

15is

14

15

16

14

14

14

14

582

19.4

0.02

May

13

14

18 

20

17

16

15

14

13

12

13

13

13

11 

9.8

11

9.8

11

9.8

9.8

9.3

9.3

9.8

9.3

&!

9.3

17

15

11

11

16

388.5

12.5

0.02

June

*14

28

18 

12

10

9.3

8.8

8.3

7.8

8.3

7.8

7.0

6.6

6.0 

d7.0

d6.0

5.6

5.6

6.3

5.6

7.0

7.0

6.0

13

11

ae.o

ae.o

as. 5

a5.5

a5.0

260.0

8.67

0.02

July

4.7

4.1

3.0

d22

d36

11

9.3

7.4

9.3

9.8

6.6

6.0

*5.6

5.6 

4.4

4.7

4.4

5.3

5.0

71

365

20

16

13

12

9.8

8.3

7.8

7.4

7.4

6.6

709.3

22.9

0

Aug.

6.3

6.0

6.0 

5.6

6.3

7.0

6.6

6.3

5.6

5.3

4.7

4.4

 4.1

4.4 

4.4

4.1

3.6

3.3

3.6

5.3

14

6.3

5.3

4.7

4.4

4.1

4.4

3.8

3.6

3.0

2.8

159.3

5.14

0

Sept.

2.8

2.6

278 

2.8

2.8

8.0

8.3 4'.4

3.6

3.3

3.3

3.3

3.3

3.0 

3.3

5.0

3.0

a3.0

3.3

a5.0

3.3

3.3

3.3

*4.7

3.8

3.0

37

19

8.8

6.6

169.7

5.66

0.01

Calendar year 1955: Max 803 Mln 0.7 Mean 18.9 t 2.05

Water year 1955-56: Max 439 Mln 2.6 Mean 16.8 t 2.05

Peak discharge (base. 600 efs).--0et. 14 (8 a.m.) 1,070 cfs (7.81 ft); Mar. 14 (11 a.m.) 734 cfs 

(6.47 ft)j July 21 (5:30 a.m.) 1,550 cfs (8.86 ft).

* Discharge measurement made on this day.

t Inflow from pumpage, In cubic feet per second, from Patuxent River basin. Records furnished by 

Washington Suburban Sanitary Commission.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

stations.

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge estimated on basis of reconstructed gage-height graph, 

weather records and records for nearby stations.
538 POTOMAC RIVER BASIN

Northwest Branch Anacostla River near Hyattsville, Md.

Location. Lat 38 0 57'09", long 76"58"00". on right bank at downstream side of bridge on 

Queens Chapel Road (State Highway 210), 0.8 mile downstream from Sllgo Branch and 

1 mile west of Hyattsville, Prince Georges County.

Drainage area. 49.4 sq ml.

Records available. July 1938 to September 1956.

Gage. Water-stage recorder. Datura of gage Is 17.30 ft above mean sea level, adjustment 

of 1912. Prior to Oct. 22, 1938, wire-weight gage, Oct. 22, 1938, to Sept. 17, 1951, 

water-stage recorder, Sept. 17, 1951, to Aug. 29, 1952, staff gage and crest-stage 

Indicator, at same site and datum.

Average discharge . 18 years, 37.7 cfs (unadjusted).

Extremes. Maximum discharge during year, 3,010 cfs Oct. 14 (gage height, 11.32 ft); minimum, 4.8 cfs Sept. 3.

1938-56: Maximum discharge, 3,360 cfs Sept. 1, 1952 (gage height, 11.4 ft, from 

floodmark); minimum, 0.8 cfs Oct. 3, 7, 1941, Aug. 26, 1943. 

Maximum stage known, about 13.5 ft Aug. 24, 1933.

Remarks.--Records good except those for periods of Ice effect or doubtful or no gageheight record or backwater from unknown cause, which are fair. Discharge measurements 

generally made twice a month. Low flow regulated by storage and diversion (to Morse 

filtration plant) at Burnt Mills Dam, 7 miles above station, and by inflow pumped from 

Patuxent River basin as required for water supply for Washington Suburban Sanitary 

District.

Revisions (water years ). WSP 971: 1942 (M).

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

14

13

Tz- 12

12

14

12

107

22

14

13

12

38

1,450

147

69

47

38

31

28

32

22

28

21

21

20

19

19

18 

31

20

2,356

76.0

-1.14

Nov.

20

19

26

22

18

18

29

25

19

54

71SBSi

27

27

26

20

18

45

29

25

27

24

22

22

20

20

20

18 

16

793

26.4

+0.07

Dec.

19

21

2T

20

19

18

18

18

20

20

18

b!5

b!4

b!6

16

b!3

17

16

16

b^3

b!3

b!3

15

16

17

16

b!4

b!3

b!4 

b!5

b!4

508

16.4

-0.01

Jan.

b!4

b!4

14

16

15

15

b!5

b!2

b20

bl!7

64

49

33

24

21

20

27

20

19

27

b20

b21

19

b!6

b!8

b!5

b!3

b!4

67 

b!75 ~9T

1,025

33.1

+0.04

Feb.

b43

162

112

92

72

262

T61

71

53

44

52

46

38

35

39

38

41

57

39

32

30

28

29

37

62

51

35

32

28

1,821

62.8

-0.05

Mar.

28

29

28

27

26

26

48

186

75

45

48

47

76

726

196

198

130

83

94

70

63

53

48

46

41

42

43

41

43 

42

37

2,685

86.6

-0.03

Apr.

36

35

57

46

37

60

~59" 113

46

38

36

34

32

32

37

77

36

32

31

30

30

30

30

35- 28

31

28

28

28

28

1,225

40.8

-0.02

May

26

40

39

44

33

28

26

26

24

24

24

24

24

22

ii

24

33

33

28

30

24

22

22

20

20

20

56

24

20 

24

22

844

27.2

+1.13

June

31

83

26

24

22

c20

c!7

15

14

17

15

a!3

a!2

all

a!3

all

alO

alO

alO

alO

a!5

28

18

24

23

a!2

38

al2

alO a9 0

573.0

19.1

+0.13

July

a8.0

a7.5

a7.0

a35

142

20

14

11

40

16

9.0

9.0

8.4

7.9

7.9

7.4

8.4

9.6

8.4

159.

~85 543

74

53

35

18

71

17

15 

15

15

1,476.5

47.6

+0.15

Aug.

14

14

14

12

16

15

14

16

16

12

9.7

8.8

8.8

8.8

9.2

9.2

a8.5

a7.6

a8.5

28

72

14

a9.7

a9.2

a8.8

a8.8

a8.4

a7.6

a7.2 

a6. 8

a6. 5

409.1

13.2

-1.20

Sept.

a6.2

a5.4

5.1

57S

5.8

11

12

8.4

6.5

6.2

5.8

06.2

c6.5

6.8

12

7.6

11

7.6

5.8

17

6.5

5.4

5.8

11

6.8

6.2

- 191

74

21

14

500.4

16.7

+0.47

Calendar year 1955: Max 2,130 Min 1.6 Mean 40.4 t +5.52

Water year 1955-56 : Max 1,450 Min 5.1 Mean 38.8 t -0.04

Peak discharge (base, 1,250 cfs).--Oct. 14 (2:30 a.m.) 3,010 cfs (11.32 ft); Mar. 14 (12:30 p.m.) 

1,520 cfs (8.61 ft); July 21 (11:30 a.m.) 1,300 cfs (8.10 ft).

t Diversion from and change in contents in Burnt Mills Reservoir, and diversion from Patuxent 

River basin, equivalent in cubic feet per second. Records furnished by Washington Suburban Sanitary 

Commission.

a Doubtful or no gage-height record; discharge estimated from reconstructed gage-height graph 

based on recorded graph and recorded drop when intakes were flushed, weather records, and records 

for nearby stations.

b Stage-discharge relation affected by ice.

c Backwater from unknown cause.
POTOMAC RIVER BASIN 539

Four-mile Run at Alexandria, Va.

Location.--Lat 38°50'36", long 77°04'46", on right bank at Alexandria 120 ft downstream 

 from Washington and Old Dominion Railroad bridge, 0.2 mile downstream from State Highway 350, and 2.1 miles upstream from mouth.

Drainage area.--14.4 sq mi.

Records available. May 1951 to September 1956.

Gage.--Water-stage recorder and concrete control. Datum of gage is 22.55 ft above mean 

sea level, datum of 1929, Culpeper supplementary adjustment of 1943.

Average discharge. 5 years, 15.3 cfs.

Extremes --Maximum discharge during year, 1,350 cfs July 22 (gage height, 5.10 ft); minimum, 1.1 cfs July 1. ... . ,,

1951-56- Maximum discharge, 3,450 cfs May 5, 1953 (gage height, 8.50 ft), from 

rating curve extended above 990 cfs on basis of slope-area determinations at gage 

heights 7.2 and 8.50 ft; minimum, 0.6 cfs Sept. 8, 1954 (gage height, 1.55 ft).

Flood of June 7, 8, 1947, reached a stage of 7.2 ft, from floodmarks (discharge, 

2,250 cfs, by slope-area determination).

Remarks. Records fair above 10 cfs and poor below.

Rating table, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used June 4 to July 5, July 11-17, 19, 20, 

Aug. 20 to Sept. 27)

1.6

1.7

1.8

1.9

2.0

0.8

1.7

3.3

6.0

12

2.1

2.2

2.5 

3.0 

3.5

21

34

102

260

485

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

lil

5.5

5.7

a5

a5

7.8

6.0

60

6.6

5.5

5.5

*4.9

11

457

33

19

15

15

14

14

8.4

5.5

5.2

5.5

4.9

4.6

4.4

4.1

8.4

14

6.0

770.6

24.9

1.73

1.99

Nov.

6.0

6.0

11

8.4

9.6

7.2

14

9.6

8.4

33

*15

6.0

6.0

6.0

6.6

7.8

7.2

7.2

21

6.6

5.5

5.2

5.2

5.2

5.2

5.2

5.2

5.2

4.9

479

254.3

8.48

0.589

0.66

Dec.

4.9

5.7

575

5.5

5.2

5.2

5.2

5.2

5.7

5.5

4.9

4.6

4.6

*4.6

4.4

4*1

4.6

5.2

4.6

4.9

4.6

4.6

5.2

5.2

5.2

5.2

4.1

4.6

4.6

4.9

4.6

152.9

4.93

0.342

0.39

Jan.

4.6

5.7

5.7

5.7

5.7

6.0

5.5

4.6

6.0

50

*23

16

9.0

7.2

6.0

6.6

11

6.6

7.2

11

5.7

5.2

5.2

4.4

4.6

4.6

4.1

3.8

36

27

11

314.7

10.2

0.708

0.82

Feb.

50~6.6

29

42

17

125

52

17

14

12

20

14

11

10

10

9.6

12

16

11

9.0

9.0

8.4

7.8

17

20

11

9.0

8.4

, 7.8

585.6

20.2

1.40

1.51

Mar.

7.8

8.4

8.4

7.2

7.2

7.2

11

67

13

9.6

13

12

32

 219

29

74

33

30

32

19

16

15

14

13

12

12

12

11

13

12

11

780.8

25.2

1.75

2.02

Apr.

10

10

24

11

11

36

78 ^5"

16

14

12

12

11

14

22

40

11

*11

9.0

9.0

7.8

7.8

7.8

7.8

7.8

10

7.8

7.8

7.8

7.2

470.6

15.7

1.09

1.22

May

7.2

12

10

8.4

7.2

a7

a7

a7

a6.5

a6.5

a6.5

a6.5

a6.5

a6.5

a6

a6

a6

a6.5

a6.5

a6

a6

a5.5

*a5.5

5.2

4.6

4.6

23

9.9

7.8

21

3.4

243.3

7.85

0.545

0.63

June

12

61

5.2

3.0

2.7

2.7

2.3

2.2

2.7

3.0

2.7

1.9

2.0

*2.3

1.6

1.6

2.0

2.0

2.3

1.4

3.3

22

4.8

9.5

14

2.5

2.0

2.0

1.5

1.2

179.4

5.98

0.415

0.46

July

1.1

1.3

1.2

108

145

7.2

5.7

4.9

6.0

4.9

*3.6

3.6

3.3

3.3

3.3

5.5

6.5

5.7

5.5

138

27

82

44

15

8.4

7.8

48

7.2

5.5

5.2 5 2

712.5

23.0

1.60

1.84

Aug.

5.2

7.4

4.9

4.1

7.4

8.4

4.6

4.4

4.1

S.6

S.6

3.6

3.6

3.6

*3.6

3.3

3.1

3.0

3.6

30

26

3.0

2.5

2.5

2.5

2.2

275

2.2

2.2

2.2

2.2

164.5

5.51

0.369

0.45

Sept.

2.2

2.0

1.7

1.7

2.2

11

2.5

2.2

2.2

2.2

2.2

*2.2

2.0

2.0

4.0

2.2

18

3.1

2.2

5.5

2.2

2.0

2.0

2.7

2.2

2.0

207

T3

3.8

3.0

315.2

10.4

0.722

0.81

Calendar year 1955: Max 548 Mln 1.8 Mean 15.2 Cfsm 1.06 In. 14.36

Water year 1955-56: 1955-56: Max 457 Mln 1.1 Mean 13.5 Cfsm 0.9385 In. 12.78

llseharge (base. 500 cfs) . Oct. 14 (3:30 a.m.) 1,280 cfs (4.95 ft); Feb. 6 (3:30 p.m.) 

(5.16 ft); Mar! 14 (8 a.m.) 780 cfs (4.03 ft)j July 4 (11:50 p.m.) 1,120 cfs (4.67 ft); 

(9 p.m.) 900 cfs (4.26 ft); July 22 (10 p.m.) 1,550 cfs (5.10 ft)j July 27 (6 a.m.) 744 cfs 

:>: Sent:. ?7 ( ? SO n.m.} 1 .??Q cfs U.flS ft}.

Peak dis 

540 cfs

July 20 p.m. cs . ; uy p.m., 

(3.99 ft); Sept. 27 (2:30 p,m.) 1,220 cfs (4-83 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Difficult Run near Great 

Falls.
540 POTOMAC RIVER BASIN

Cameron Run at Alexandria, Va.

Location. Lat 38°48'23", long 77°06<35", on left bank 25 ft downstream from bridge of

Southern Railway at Alexandria, Fairfax County, 800 ft downstream from confluence of

Holmes Run and Black Lick Run, and half a mile east of U. S. Army Quartermaster Depot.

Drainage area. 33.7 sq mi.

Records available. June 1955 to September 1956.

Gage. Water-stage recorder. Datum of gage is 38.85 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943.

Extremes. Maximum discharge during year, 3,950 cfs July 20 (gage height, 8.62 ft), from 

rating curve extended above 1,500 cfs by logarithmic plotting; minimum, 3.1 cfs 

Sept. 14, 15; minimum gage height, 1.93 ft June 22, 23, July 3.

1955-56: Maximum discharge, 7,620 cfs Aug. 12, 1955 (gage height, 9.95 ft), from 

rating curve extended above 1,500 cfs by logarithmic plotting; minimum, 2.5 cfs Aug. 3, 

1955 (gage height, 1.80 ft).

Flood of May 5, 1953, reached a stage of 11.9 ft, from floodmark.

Remarks. Records fair except those below 5 cfs and above 25 cfs, which are poor.

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsro

In.

Oct.

7.6

7.2

7.2

7.2

7.2

7.6

43"~ 6.5

12

9.3

7.6

*7.9

12

~ST 514

34

28

22

18

15

16

15

13

14

11

9.4

9.4

9.8

13 

16

11

971.9

31.4

0.932

1.07

Nov.

10

10

11

109.'0

9.0

10

9.8

9.0

22

*26

T8

16

15

13

13

11

10

14

11

9

9

9.5

9.5

9

9

9

8.5

7.8 

7.4

344.5

11.5

0.341

0.38

Dec.

7.8

8.6

9.4

9.4

8.6

8.2

7.8

7.8

8.2

B.2

7.8

7.8

7.4

*7.4

8.2

7.4

7.8

8.2

7.8

7.8

8.2

8.2

9.4

9.8

9TO

8.2

7.4

7.4

7.4

8.2

253.0

8. 16

0.242

0.28

Jan.

7.8

7.8

8.6

8.6

8.2

7.8

7.8

7.8

7.8

*26

26

19

14

13

12

14

12

13

16

15

14

14

14

13

13

12

12

12

38 

433~2"

469.2

15.1

0.448

0.52

Feb.

29

49

51

57

43

~J5 137

45

40

36

39

37

34

32

31

29

29

33

29

27

27

29

27

30

35

30

28

26

2S

1,144

39.4

1.17

1.26

Mar.

26

26

19

18

16

13

11

5?

41

32

28

26

34

*266

120

131

98

69

65

53

39

37

31

25

22

22

21

20

21

21

19

1,422

45.9

1.36

1.57

Apr.

18

19

22

21

19

28

82

65

43

35

30

26

25

23

23

39

26

*24

21

19

17

15

13

11

10

11

11

10

11

12

729

24.3

0.721

0.80

May

9.4

11

11

10

9.4

9.0

10

9.0

9

10

10

10

9.5

8.5

6.5

8.2

6.8

7.8

6.8

6.8

6.2

6.2

*6.8

5.8

575

5.8

9.0

8.2

5.8 

~§".o 19

266.3

8.59

0.255

0.29

June

8.2

48

12

8.Z

7.0

6.5

6.2

5.8

a5.5

a5.5

a5.0

a5.0

*a4.5

.5

.4

.2

.2

.5

.8

.5

5.5

5.0

20~ 3.8

21

4.4

6.4

5.2

4.2 

4.0

238.0

7.93

0.235

0.26

July

4.2

4.0 470"

87

345

28

16

13

17

14

*8.9

8.6

8.2

8.6

7.8

7.5

8.2

8.6

7.5

425

260

173

245

62

29

16

109

25

11 

9.2

8.9

1,979.2

63.8

1.89

Z.18

Aug.

8.6

8.9

8.2

7.2

6.9

8.2

6.3

6.0

5.4

4.8

4.5

4.5

4.5

*5.1

4.5

4.5

4.3

4.5

4.8

22

~8.5 34

8.5

7.5

7

5

4.5

4.5

4.1

4!l

225.5

7.27

0.216

0.25

Sept.

3.9

3.9

3.7

3.7

3.7

5.4

4.5

4.1

3.7

3.7

»3.5

3.5

3.5

3.3

37?

4'.1

5.1

4.8

3.7

4.3

3.5

3.5

3.5

3.7

3.5

3.5

~88 330

26 

18

563.2

18.8

0.558

0.62

Calendar year 1955: Max - Mln - Mean - Of am - In. -

Water year 1955-56: Max 514 Mln 3.3 Mean- 23.5 cfsm 0.697 In. 9.48

Peak discharge (base, 500 cfs). Oct. 14 (5 a.m.) 985 ofs (6.06 ft); Mar. 14 (8 a.m.) 525 cfs

(4.93 ft); July 5 (1 a.m.) 2,150 ofs (7.58 ft); July 20 (11 p.m.) 3,950 ofs (8. 62 ft); July 22

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Difficult Run near Great

Palls. . 1 1 a
POTOMAC RIVER BASIN 541

Henson Creek at Oxon Hill, Md.

Location. Lat 38°47'05", long 76°58'50", on left bank 100 ft downstream from bridge on 

Tucker Road, 1.0 mile south of Oxon Hill, Prince Georges County, and 1.4 miles upstream from Carey Branch.

Drainage area. 16.7 sq mi.

Records available. June 1948 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 62 ft (from topographic map).

Average discharge. 8 years, 20.0 cfs.

Extremes. Maximum discharge during year, 1,710 cfs Oct. 14 (gage height, 6.02 ft), from 

rating curve extended above 520 cfs as explained below; minimum, 0.4 cfs Sept. 14 or 15.

1948-56: Maximum discharge, 3,000 cfs Aug. 13, 1955 (gage height, 7.33 ft), from 

rating curve extended above 520 cfs on basis of slope-area determinations at gage 

heights 6.63 and 7.27 ft; no flow at times during July, August, September, and October 

1954, and July 1955.

Remarks. Records good except those for periods of ice effect and fragmentary or no gageheight record, which are fair. Small diversion above station for irrigation of truck 

farm. Some regulation at low flow caused by sand and gravel plant above station.

Revisions (water years). WSP 1232: 1949(M) , 1950.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

0.4

.5

.6

.8

1.0

1.2

O.6 

1.8 

3.8

11

26

54

1.5 

2.0 

3.0 

4.0 

5.0

113

218

456

740

1,120

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2L

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

5.0

4.8

4.6

4.4

4.0

4.6

5.0

18

10

7.0

7.O

5.0

*12

~68 85O

35

25

20

17

15

14

13

12

12

12

12

11

11

12 

16

14

1,260.4

40.7

2.44

2.81

Nov.

13

12

12

12

*11

11

1O

11

10

11

25

16

14

12

12

12

11

*9.8

17

19

15

14

12

13

11

11

11

10

9.3 

9 ' 5

376.4

12.5

0.749

0.84

Dec.

9.3

10

12

12

11

10

10

9.8

11

11

10

8.9

9.3

9.3

9.8

b7.7

8.5

9.3

*8.9

b7.O

b7.0

7.4

8.5

9.8

10

8.9

b6.6

b6.0

6.6 

8.1

8.5

282.2

9.10

0.545

0.63

Jan.

7.4

7.4

7.7

8.5

8.5

8.1

7.7

b6.0

774

28

31

32

18

14

13

11

12

11

12

12

11

11

11

9.8

b9.0

9.3

b8.5

8.1

18 

26

18

402.4

13.0

0.778

0.90

Feb.

13

23

*34

49

34

-7! 112

33

29

24

29

27

21

20

18

17

18

23

18

16

15

14

13

14

23

20

15

14

I2-

769

26.5

1.59

1.71

Mar.

12

13

13

12

11

*11

12

40

21

16

18

16

25

~5l 162

71

59

37

37

33

29

26

24

23

21

20

19

18

18

17

903

29.1

1.74

2.01

Apr.

16

16

19

18

16

26

52

41

24

*20

19

18

17

16

18

31

20

17

16

15

14

14

13

13

13

*14

13

12

12 

10

563

18.8

1.13

1.25

May

9.8

10

14

11

9.8

*10

9.8

9.8

8.5

8.1

7.7

8.9

7.7

6.0

5.6

5.6

5.6

7.0

6.6

6.O

4.7

5.3

5.6

5.0

4.4

4.7

8.9

7.7

5.3 

~~Q 21 Q

249.9

8.06

0.483

0.56

June

7.0

47

20

8.9

7.0

*6.3

5.6

5.0

5.3

5.3

4.1

3.1

2.7

2.7

2.5

2.3

2.3

2.5

2.5

la

3.4

17

18

19

27

5.3

6.8

5.5

3.1 

2 ' 5

251.8

8.39

0.502

O.56

July

2.5

 1.9

1.8

3.8

12

11

8.9

7.7

11

9.8

5.3

3.8

3.6

3.8

2.7

2.5

2.7

4.4

3.4

20

19

19

54

32

12

7.7

19

8.5

6.6

5.0

4.4

370.8

12.0

0.719

0.83

Aug.

4.1

6.0

4.4

4.1

5.6

5.3

4.4

3.6

2.5

2.1

2.1

2.3

*2.1

2.1

2.0

2.0

1.9

1.8

1.7

^75

4O

To

5.0

3.0

2.5

2.2

2.4

2.2

2.0 

1*9

1.8

135.1

4.36

0.261

0.30

Sept.

1.5

1.4

1.3

1.2

1.1

1.2

1.5

1.3

1.1

.9

.9

.9

1.0

.7

75

4.0

*14

7.9

3.4

3.1

2.3

2.7

2.7

3.1

3.1

2.5

48

H

10 

7.7

155.4

5.18

O.310

0.35

Calendar year 1955: Max 1,25O Mln 0 Mean 19.4 Cfsm 1.16 In. 15.76

Water year 1955-56 : Max 850 Mln 0.7 Mean 15.6 Cfsm 0.934 In. 12.75

Peak discharge (base, 400 efs).--0et. 14 (7:30 a.m.) 1,710 cfs (6.O2 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. Fragmentary or no gage-height record Oct. 1-12, Oct. 18 to Nov. 12, Nov. 17, 18, Aug. 14 

to Sept. 17; discharge estimated on basis of recorded range in stage, weather records, and records 

for nearby stations.
542 POTOMAC RIVER BASIN

Accotink Creek near Annandale, Va.

Location. Lat 38°48'40", long 77°13'50", on left bank at upstream side of bridge on State 

Highway 620, 0.2 mile upstream from Long Branch and 2.3 miles southwest of Annandale, 

Fairfax County.

Drainage area. 23.6 sq ml.

Records available.--March 1947 to September 1956 (fragmentary prior to October 1947).

Gage. Water-stage recorder and concrete control. Datum of gage Is 190.91 ft above mean 

sea level, datum of 1929, Culpeper supplementary adjustment of 1943 (levels by Stone 

& Webster Engineering Corp.). Prior to May 12, 1949, staff gage at same site and datum.

Average discharge. 9 years, 26.0 cfs.

Extremes.--Maximum discharge during year, 1,270 cfs Sept. 27 (gage height, 7.05 ft); minimum, 2.1 cfs Sept. 15 (gage height, 1.01 ft).

1947-56: Maximum discharge, 3,950 cfs June 8, 1947 (gage height, 9.9 ft, from 

floodmarks), from rating curve extended above 1,200 cfs on basis of contracted-opening 

determination at gage height 8.41 ft; minimum, 0.10 cfs Sept. 25, 26, 1954; minimum 

gage height, 0.91 ft Oct. 3, 1954.

Remarks. Records good.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

1.0

1.1

1.2

1.3

1.8 

5.6 

9.6

1.4 

1.6 

2.0 

3.5

104

400

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

1L

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Hatal

Mean

Cfsm

In.

Oct.

5.6

5.6

5.6

5.6

5.6

5.6

5.6

28

7.2

5.2

4.8

*5.2

5.6

152

22

11

9.6

8.0

6.8

6.8

6.4

6.0

5.6

6.0

6.0

6.8

6.8

6.8

7.2

12

8.0

389.0

12.5

0.530

0.61

Nov.

6.8

"678 6.4

8.4

7.2

7.2

7.6

10

8.0

»8.4

33

13

10

10

9.6

10

10

8.8

11

14

12

12

11

10

10

10

9.6

10

9.2

8.8

308.8

10.3

0.436

0.49

Dec.

8.8

9.6

10

10

10

9.6

9.2

9.6

9.6

9.6

8.8

8.8

8.4

*8.4

9.2

8.8

8.0

8.4

8.4

8.4

8.0

8.0

8.4

8.4

8.8

8.4

8.0

7.2

7.2

8.0

7.6

269.6

8.70

0.369

0.43

Jan.

7rt

7.6

8.4

8.0

7.6

7.6

7.6

7.6

»20

27

27

17

13

11

11

11

11

11

11

11

10

11

10

9.6

9.6

8.8

8.8

21

26

28

393.4

12.7

0.538

0.62

Feb.

16

56

66

48

39

134

75

32

25

20

20

24

18

17

17

16

17

21

18

17

15

14

13

14

22

20

16

15

13

838

28.9

1.22

1.32

Mar.

IZ

14

13

12

12

12

12

94

34

20

19

20

*32

*317

57

66

58

36

34

33

28

23

20

19

17

18

16

16

17

18

16

1,115

36.0

1.53

1.76

Apr.

16

16

21

19

16

18

82

62

26

20

19

17

17

16

17

43

*24

21

19

18

17

17

16

16

16

15

15

14

14

JL2

659

22.0

0.932

1.04

May

12

14

16

14

12

11

11

11

10

9.6

10

10

9.6

8.8

7.6

8.0

8.0

10

8.8

9.6

8.4

7.6

*8.0

7.6

7.6

7.2

9.6

11

7.6

15

14

314.6

10.1

0.428

0.49

June

8.4

35

16

9.6

8.0

7.6

7.2

6.8

6.0

6.4

6.4

5.6

*5.6

5.6

5.2

4.8

4.4

4.8

5.6

4.8

5.2

6.0

17

12

14

5.2

4.8

5.2

4.0

5.6

240.8

8.03

0.340

0.38

July

3.6

3.6

3.2

26

272

18

12

8.4

9.2

*8.8

6.8

6.4

5.6

5.6

5.6

5.2

5.2

8.8

5.6

156

349

88

266

71

62

39

27

22

17

14

11

1,541.6

49.7

2.11

2.43

Aug.

10

8.8

8.8

8.4

8.0

10

11

10

8.8

8.0

7.6

6.8

6.8

*6.8

6.4

6.4

6.0

5.6

4.8

10

78

5l

30

18

12

9.2

7.6

6.8

6.0

5.2

4.8

387.6

12.5

0.530

0.61

Sept.

4.4

4.0

3.6

3.6

3.6

4.0

4.4

4.0

3.6

2.8

*3.2

3.2

3.6

3.2

3.6

5.6

5.6

11

3.6

7.6

4.0

3.2

3.2

3.6

3.6

3.6

~83 388

17

12

609.4

20.3

0.860

0.96

Calendar year 1955: Max 1,O50 Min O.70 Mean 17.7 Cfsm 0.750 in . 10.18

Water year 1955-56: Max 388 Mln 2.8 Mean 19.3 Cfsm 0.818 In. 11.14

Peak discharge (base, 400 cfs).--Feb. 6 (9 p.m.) 422 cfs (3.59 ft); Mar. 14 (2 p.m.) 686 cfs 

x ..78 ft); July 5 (9 a.m.) 686 cfs (4.78 ft); July 21 (5 a.m.) 1,240 cfs (6.94 ft); July 23 (7 a.m. 

840 cfs (5.48 ft); Sept. 27 (9 p.m.) 1,270 cfs (7.05 ft).

* Discharge measurement made on this day.

(4
POTOMAC RIVER BASIN 543

Long Branch near Annandale, Va.

Location. Lat 38°48'39", long 77°14'07", on left bank at downstream side of bridge on 

State Highway 620, 0.3 mile upstream from Accotlnk Creek and 2.5 miles southwest of 

Annandale, Fairfax County.

Drainage area. 3.9 sq ml, approximately.

Records available. March 1947 to September 1956 (fragmentary prior to October 1947). 

Prior to October 1950, published as Little Run near Annandale.

Gage. Staff gage, crest-stage Indicator, and V-notch sharp-crested weir; gage read twice 

dally. Datum of gage Is 198.15 ft above mean sea level, datum of 1929, Culpeper supplementary adjustment of 1943 (levels by Stone & Webster Engineering Corp.). Prior to 

Oct. 15, 1947, staff gage at upstream side of bridge at datum 0.06 ft higher. Oct. 15, 

1947, to May 27, 1949, staff gage at site 150 ft downstream at datum 1.46 ft lower than 

present datum.

Average discharge. 9 years, 4.83 cfs.

Extremes. Maximum discharge during year, 310 cfs July 21 (gage height, 3.5 ft); minimum, 

0.30 cfs July 15 (gage height, 0.65 ft).

1947-56: Maximum discharge, 1,100 cfs June 8, 1947 (gage height, 7.7 ft, from floodmarks, at datum 0.06 ft higher than present datum), from rating curve extended above 

220 cfs; no flow Sept. 30 to Oct. 4, 1954.

Remarks. Records fair except those for periods of no gage-height record, which are poor.

Rating table, water year 1955-56 (gage height. In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Jan. 29 to Feb. 6, Jully 8-12)

.9 

1.1 

1.3

0.35 

.55 

1.1 

2.3 

4.8

1.5 

1.8 

2.1 

2.5

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0.83

.65

.55 

.55

.55

.60

.55

4.0

.83

.83

.62

*.60

.53

oa

3.0

1.6

1.3 

1.3

1.2

1.2

1.1

1.0

.95

.95

.95

.95

.95

.95

.95

. 95

!95

49.94

1.61

0.413

0.48

Nov.

0.95

. 95

.95 

.95

.95

1.1

1.1

1.1

1.1

*1.1

3.0

2.0

1.3

1.3

1.3

1.3

1.2 

1.2

'27T 4.1

1.9

1.8

1.6

1.6

1.6

1.6

1.6

1.4

1.4

1.4

44.95

1.50

0.385

0.43

Dec.

1.4

1.6

1.6 

1.6

1.5

1.4

1.3

1.3

1.3

1.3

1.1

1.1

1.2

*1.3

1.3

1.3

1.3 

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.6

1.6

1.3

1.4

1.3

1.3

1.5

42.0

1.35

0.346

0.40

Jan.

1.4

1.4

1.5 

1.5

1.5

1.5

1.6

1.8

1.8

*1.8

1.6

1.8

1.8

1.8

1.5

1.5

1.5

4.4

1.9

1.5

1.8

1.6

1.6

1.6

1.6

1.6

1.7

6.2

18

6.8

82.3

2.65

0.679

0.78

Feb.

5.0

5.6

26

21

28

*41

To

6.4

4.7

4.6

4.1

3.4

3.4

3.4

3.4

2.9

2.8

1.6

273

2.3

2.3

2.1

2.1

4.0

3.1

2.6

2.2

2.1

205.5

7.09

1.82

1.96

Mar.

2.1

1.9

iti

1.8

1.8

2.5

10

5.8

3.8

a4.0

5.4

6.8

~6.8 44

8.3

5.8

6.6

6.0

4.8

4.8

3.4

3.1

2.9

3.4

3.4

3.4

3.2

2.9

2.8

171.9

5.55

1.42

1.64

Apr.

a3.0

3.6

4.8 

4.8

3.1

3.1

6.0

10

6.0

5.4

4.7

4.6

5.6

6.0

5.6

5.2

*4.2

3.6

3.8

3.6

3.1

2.9

2.7

2.6

2.6

3.4

3.4

2.8

2.3

126.7

4.22

1.08

1.20

May

2.5

2.7

2.7 

2.5

2.3

1.9

1.9

1.8

1.8

1.7

2.0

1.9

1.8

1.8

1.8

1.8

1.7

1.7

1.6

1.5

1.5

*1.5

1.5

1.5

1.5

1.5

1.4

1.3

T~2 3.5

59.5

1.92

0.492

0.57

June

2.7

2.1

1.7 

1.7

1.5

1.5

1.4

1.3

1.3

1.3

1.2

1.2

*1.1

1.1

1.0

.98

1.3

4.0

al.5

al.O

al.5

2.9

3.0

2.2

1.5

1.4

1.2

1.1

.92

51.20

1.71

0.438

0.49

July

0.80

.62

.51 

3.5

a20

a2

al.5

1.1

1.0

*.95

.95

.86

.83

.75

.35

a. 5

1.3

1.2

9.9

35

al.O

3.1

2.3

2.1

1.8

1.6

1.6

al.3

al.2

1.1

105.02

3.39

0.869

1.00

Aug.

1.2

1.1

1.1 

1.1

1.4

1.8

1.2

1.2

1.1

1.3

.92

.98

.92

*1.0

.89

1.3

1.6

1.8

5.0

1.3

1.6

1.1

1.0

.98

.92

.86

.83

.80

.75

.70

39.35

1.27

0.326

0.38

Sept.

T73~ 0.62

1.0 1.1

1.3

1.1

1.2

1.2

.65

.70

*.70

.75

1.3

1.3

1.2

1.1

1.1 

. 98

1.1

1.0

1.0

.95

.86

.89

.86

.83

~2.3 56

.78

a. 7

85.87

2.86

0.733

0.82

Calendar year 1955: Max 95 Mln O.04 Mean 2.35 Cfsm 0.603 In. 8.19

Water year 1955-56: Max 56 Mln 0.35 Mean 2.91 Cfsm 0.746 In. 10.15

Peak discharge (base, 60 cfs).--Feb. 6 (5 p.m) 63 cfs (2.4O ft); Mar. 14 (1:30 p.m.) 85 cfs 

(2.67 ft); July 5 (5 a.m.) 85 efs (2.63 ft); July 21 (3 a.m.) 310 cfs (3.5 ft); Sept. 27 (8 p.m.) 

200 cfs (3.10 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of high-water marks and records for Accotlnk 

Creek near Annandale.
544 POTOMAC RIVER BASIN

Accotink Creek near Accotink Station, Va.

Location.--Lat 38°45'15", long 77 0 12'09", on left bank 100 ft upstream from highway bridge, 

1.4 miles northwest of Accotink Station, Fairfax County, and 1.6 miles downstream from 

Calamo Branch.

Drainage area. 37.0 sq mi.

Records available. May 1949 to September 1956.

Sage.--Water-stage recorder. Altitude of gage is 121 ft (by barometer).

Average discharge. 7 years, 38.8 cfs.

Extremes. Maximum discharge during year, 1,900 cfs July 22 (gage height, 11.49 ft); minimum, 2.6 cfs Aug. 30, Sept. 10; minimum gage height, 4.40 ft July 3,4.

1949-56: Maximum discharge, 3,120 cfs Aug. 13, 1955 (gage height, 14.21 ft); minimum daily, 0.6 cfs many days in November, December 1954; minimum gage height, 2.96 ft 

Sept. 10, 1949.

Remarks. Records fair except those below 10 cfs, which are poor. Field maneuvers by U. S. 

Army cause some regulation. Occasional regulations by Fort Belvoir Reservoir about 

3 miles upstream. No diversion from reservoir; water travels in stream channel to a 

point near U. S. Highway 1, downstream from gage, at which point it is pumped to Port 

Belvoir treatment plant.

Rating table, water year 1955-56 (gage height, in feet, and discharge,

in cubic feet per second)

(Shifting-control method used Oct. 14 to Nov. 10. Jan. 10-23, 

Mar. 9 to May 3O, Aug. 20 to Sept. 30)

4.2 

4.4

4.6 

4.8 

5.0 

5.5

2.1 

4.0 

6.8

11

20

SO

6.0 

6.5 

7.0 

8.0 

9.0

90 

140 

225 

500 

9OO

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

IWal

Mean

Cfsm

In.

Oct.

6.8

6.5

6.2

6.0

6.0

6.8

6.6

50

23

9.3

*8.2

8.1

8.4

428

64

24

11

9.6

8.8

7.3

7.0

7.0

6.4

8.6

5.6

5.8

6.4

6.2

9.8

15 

7.9

790.3

25.5

0.689

0.79

Nov.

6.5

6.2

7.2

10

6.6

4.0

776

8.6

7.7

*16

56

26

18

18

14

16

19

10

18

27

19

20

18

19

12

16

13

19

9.3

14

461.1

15.4

0.416

O.46

Dec.

1*6

13

16

16

16

14

12

13

16

16

9.8

11

*11

11

12

10

10

10

11

10

9.6

9.3

10

11

11

11

9.8

8.8

8.8

10

355.5

11.5

0.311

0.36

Jan.

9.1

8.8

9.6

11

10

9.8

9.8

9.8

8.8

23

*49

39

28

20

7.2

9.1

15

9.1

9.3

12

10

9.6

1O

9.3

8.2

8.6

7.9

7.5

25

86 

62

551.5

17.8

0.481

0.55

Feb.

30

67

115

81

76

261

240

52

47

40

39

44

34

30

30

26

28

39

31

30

22

18

12

12

26

21

16

18

9.8

1,494.8

51.5

1.39

1.50

Mar.

11

13

12

12

11

11

11

139

70

33

29

29

*43

662

135

106

122

69

60

63

52

42

37

37

27

30

28

27

28

31 

26

2,006

64.7

1.75

2.02

Apr.

22

24

30

36

25

30

113

"SO" 186

37

34

30

28

25

28

70

*39

32

28

27

22

24

25

20

22

24

22

21

21

21

1,116

37.2

1.01

1.13

May

15

2O

25

24

16

18

18

17

15

16

15

16

16

14

12

16

8.8

16

14

14

12

*12

14

12

9.8

11

16

21

12

25

2T_

498.6

16.1

0.435

0.50

June

13

54

32

14

11

9.6

10

9.1

8.4

8.6

8.4

7.3

*7.2

6.8

6.5

6.0

6.4

5.9

7.2

6.5

8.1

8.4

15

25

30

7.5

7.O

6.8

5.8

4.6

356.1

11.9

0.322

0.36

July

4.8

4.8

4.4

112

641

33

18

12

17

*16

9.3

7.2

7.2

9.1

5.2

4.9

7.2

13

9.3

268

820

192

730

84

54

37

59

31

22

20 

16

3,268.4

105

2.84

3.27

Aug.

15

16

16

14

19

31

21

17

12

11

9.3

10

10

*9.8

8.6

7.7

7.2

7.0

7.0

26

101

18

7.9

7.2

4.6

4.9

5.0

4.6

4.6

TT

440.4

14.2

0.384

0.44

Sept.

3.9

4.1

3.6

3.4

3.6

4.5

5.4

4.5

3.8

3.0

*2.9

3. 6

3.7

3.9

3.8

4.8

6.5

13

5.3

7.3

4.3

4.1

4.1

5.2

4.4

4.0

421

428

34

18

1,O21.7

34.1

0.922

1.03

Calendar year 1955: Max 1,960 Mln 2.1 Mean 32.7 Cfsm 0.884 In. 11.96

Water year 1955-56 : Max 820 Min 2.9 Mean 33.8 Cfsm 0.914 In. 12.41

Peak discharge (base, 600 efs).--Oct. 14 (10:30 a.m.) 820 cfs (8.82 ft); Feb. 6 (11:30 p.m.) 

960 cfs (9.16 ft); Mar. 14 14:30 p.m.) 1,300 cfs (9.95 ft): July 5 (4:30 a.m.) 1,220 cfs (9.80 ft): 

July 21 (3 a.m.) 1,780 cfs (11.19 ft); July 22 (11:30 p.m.) 1,900 cfs (11.49 ft); Sept. 28 (3 a.m.) 

1,700 cfs (10.98 ft).

* Discharge measurement made on this day.
POTOMAC RIVER BASIN 

Cedar Run near Warrenton, Va.

545

Location. Lat 38°44'30" ( long 77°47'15", on right bank at downstream side of bridge on 

State Highway 672, 1.9 miles north of Warrenton, Pauquler County, and 14.5 miles upstream from Licking Run.

Drainage area.--13.0 sq ml.

Records available. July 1950 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 319.40 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Average discharge. 6 years, 12.6 cfs.

Extremes.--Maximum discharge during year, 2,200 cfs July 20 (gage height, 8.84 ft); minimum, 0.03 cfs July 3 (gage height, 2.31 ft).

1950-56: Maximum discharge, 3,100 cfs June 8, 1955 (gage height, 9.59 ft), from 

rating curve extended above 570 cfs on basis of areal study of flood of 1942; minimum, 

that of July 3, 1956.

Flood in October 1942 reached a stage of about 13 ft, from information by local 

residents.

Remarks. Records fair.

Revisions (water years). VfSP 1382: 1951-53.

Rating table, water year 1955-56 (gage height. In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Oct. 14 to Nov. 11)

2.33

2.4

2.5

2.6

2.7 

2.9

0.1

.5

1.7

3.6

6.2

13

3.1 

3.5 

4.0 

5.0 

6.O 

7.0

81

172

315

560

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

3.8

3.8 

3.6

3.4

3.4

3.6

3.6

21

*s!i

4.1 

3.6

3.4

12

7.2

4.4

3.4

2.8

2.6

2.2

1.9

1.7

1.7

1.5

1.5

1.5

1.7 

1.5

1.7 

2.0

2.2

123.7

3.99

O.307

0.35

Nov.

2.0

2i4

2.6

2.6

2.6

3.0

*3.2 

2.4

3.6

It! 4.1

4.1

3.8

3.6

3.6

3.2

4.1

5.1

5.6

4.8

4.6

4.4

3.8

3.8

3.6 

3.6

3.2 

3.0

111.7

3.72

0.286

0.32

Dec.

3.0

3.2 

3^6

3.6

3.6

3.4

3.0

3.2 

3.2

3.0

2.6 

 2.4

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.0

2.0

2.0

2.4

3.O

2.8

2.4 

1.9

1.7 

2.0

2.2

80.6

2.60

0.200

0.23

Jan.

1.9

1.7 

2.0

2.2

2.2

2.2

2.2

2.O

1.7

3.9

8.4 

*6.8

5.1

3.6

3.4

3.4

3.2

3.4

3.4

3.4

3.2

3.0

3.2

3.2

2.6

2.6

2.4 

2.4

8.1 

19

13

128.8

4.15

O.319

0.37

Feb.

10

18 

26

29

24

*62

49

32 

26

21

20 

19

16

14

13

12

12

13

11

10

9.4

8.4

8.1

7.5

9.4

8.8

7.8 

7.8

lil

51O.4

17.6

1.35

1.46

Mar.

6.2

6.2 

6.2

5.9

5.6

77T

23 

19

16

15 

*13

16

97

56

56

42

35

33

29

25

22

20

18

16

15

14 

12

13 

12

10

669.6

21.6

1.66

1.91

Apr.

9.4

9.1 

10

9.4

8.1

12

35

f

22

19 

16

14

13

13

*17

12

11

10

9.1

8.4

8.1

7.8

7.5

7.2

6.8

6.5 

6.2

5.9

5^4

385.9

 12.9

O.992

1.11

May

5.6

6.2 

7.2

678

5.9

5.9

5.9

5.9

5.1

4.8

5.1 

5.1

4.8

4.1

3.8

4.1

3.8

5.1

4.4

3.8

 3.4

3.6

3.8

2.8

2.6

2.4

T7T 

4.8

3.O

4.5

4.6

143. 0

4.61

0.3'55

0.41

June

3.2

1*2. 

5.9

3.8

3.O

2.6

2.2

1.9 

1.7

1.9

1.7 

1.2

1.0

 1.0

.8

.8

.8

1.0

1.5

1.1

1.5

1.9

1.7

.7

.5

.4

.3

o

7§

.2

51.9

1.73

0.133

0.15

July

0.1

.1 

.7

20

118

7.7

5.6

3.2 

 9.0

6.2

3.2 

2.2

1.5

1.4

1.0

.9

1.0

1.5

1.0

429

96

56

211

73

42

27

22

17

15

12 

10

1,194.3

38.5

2.96

3.41

Aug.

8.8

126 

24

17

3O

33

28

20

16

13

11 

9.8

 9.4

9.1

7.8

6.5

5.9

5.1

5.1

5.4

9.4

6.5

5.4

4.6

3.8

4.1

3.8 

3.8

3.4

3.O

TTo

441.7

14.2

1.O9

1.26

Sept.

2.8

2.6 

2.6

2.4

2.6

5.1

3.6

2.8 

2.4

*2.4

2.4 

2.6

2.6

2.2

TTff

3.2

6.7

5.1

3.4

5.1

3.0

2.8

3.0

5.9

3.6

3.0

1

15 

11

194.7

6.49

0.499

0.56

Calendar year 1955: Max 868 Mln 0.2 Mean 13.4 Cfsm 1.O3 In. 14. O2

Water year 1955-56: Max 429 Mln O.I Mean 11. O Cfsm 0.846 In. 11.54

Peak discharge (base. 25O cfs).--July 5 (1 a.m.) 1,15O cfs (7.76 ft); July 20 (9 p.m.) 2,200 cfs 

(8.84 ft); July 23 (5:30 p.m.) 1,300 cfs (7.92 ft); Aug. 2 (6 a.m.) 95O cfs (7.55 ft). 

* Discharge measurement made on this day.
546 POTOMAC RIVER BASIN

Cedar Run near Catlett, Va.

Location. Lat 38°38'12", long 77°37'31", on right bank at downstream side of bridge on 

State Highway 233, 0.9 mile downstream from Licking Run and 1.4 miles southeast of Catlett, Fauquier County.

Drainage area. 93.5 sq ml.

Records available. July 1950 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 199.15 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Average discharge. 6 years, 83.0 cfs.

Extremes. Maximum discharge during year, 6,700 cfs July 21 (gage height, 16.50 ft); minimum, 0.4 cfs about July 1-3 (gage height, about 2.06 ft).

1950-56: Maximum discharge, 7,300 cfs June 8, 1955 (gage height, 17.25 ft); no flow 

Sept. 19 to Oct. 14, 1954.

Maximum stage known, about 22 ft Oct. 15, 1942, from information by local residents.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.1

2.2

2.3

2.4

2.5

2.6 

2.8

0.5

1.4

2.6

5.0

8.2

12

25

3.0 

3.5 

4.0 

5.0 

7.0 

11.0

46

132

228

454

1,150

3,050

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

Cfsm

In.

Oct.

7.6

7.9

7.6

7.6

6.9

6.9

7.2

86

53

»19

13 

10

9.1

149

109

36

24

18

15

14

12

10

9.5

9.1

9.1

8.2

8.2

8.6

7.9

8.2

9.1

706.7

22.8

0.244

0.28

Nov.

9.9

8.6

8.6

9.5

9.9

8.2

?ri

*12

14

14

H17

14

12

12

12

9.9

9.5

15

20

20

16

15

12

12

11

10

10

8.2

410.4

13.7

0.147

0.16

Dec.

8.2

8.2

9.5

11

11

11

9.1

8.2

8.2

8.2

6.9 

*b6.5

b5.5

b5.5

6.9

b6.5

6.6

6.3

b5.5

bS.O

bS.O

4.8

sTo

5.6

6.9

7.6

b6.0

b6.0

5.3

5.3

5.3

216.6

6.99

0.075

0.09

Jan.

5.3

5.0

576

5.6

6.0

6.0

b5

b5

*a8

alO

a20 

30

21

b!5

b!4

b!2

bll

b8

9.9

11

blO

blO

b9

b8

b8

8.2

7.2

6.9

14

16

83.

399.7

12.9

0.138

0.16

Feb.

46

89

228

244

204

663

628

184

136

107

105 

134

84

67

62

52

46

76

57

46

36

30

27

24

38

39

30

27

21

3,530

122

1.30

1.40

Mar.

18

18

18

17

16

15

15

185

143

74

57 

*59

114

1,190

380

370

299

180

198

190

134

109

93

81

62

59

51

44

44

56

39

4,328

140

1.50

1.73

Apr.

32

30

30

34

28

32

405

344

137

94

76 

62

51

40

39

*123

74

48

41

33

29

25

24

21

21

19

18

17

16

15

1,958

65.3

0.698

0.78

May

14

12

17

18

15

12

12

12

11

9.9

9.9 

10

10

9.5

7.9

6.9

6.9

7.6

8.2

7.2

*6.6

6.6

6.6

6.3

4.8

4.3

4.8

11

9.1

6.6

7.9

291.6

9.41

0.101

0.12

June

7.6

9.5

22

12

8.2

6.3

5.0

4.5

3.8

3.8

3.8 

3.8

2.8

*2.4

3.7

3.6

4.0

1.9

2.0

2.5

2.4

2.8

6.6

5.3

3.1

a2

al.5

al.5

al

aT

140.4

4.68

0.050

0.06

July

aO.5

a. 5

a. 5

a20

a800

a 30

a!5

alO

*a!2

28

12 

7.2

4.8

3.8

3.3

2.5

34

259

17

902

2,920

462

2,380

1,310

288

158

110

81

62

51

35

10,019.1

323

3.45

3.98

Aug.

30

682

161

84

236

321

175

119

74

54

39 

31

*29

28

28

23

18

15

13

12

41

35

20

15

12

10

9.9

9.5

8.6

7.6

6.9

2,347.5

75.7

0.810

0.93

Sept.

6.6

5.6

5.0

4.8

4^3

4.3

13

8.2

6.3

*4.8

4.8 

5.3

6.0

6.0

5.3

8.2

9.5

17

10

11

12

6.9

6.6

7.2

12

7.9

311

281

88

44

922.6

30.8

0.329

0.37

Calendar year 1955; Max 3,890 Min 0.20 Mean 98.4 Cfsm 1.05 In. 14.28

Water year 1955-56: Max 2,920 Mln 0.5 Mean 69.0 Cfsm 0.738 in. 10.06

Peak discharge (base, 1,500 efs).--Feb. 6 (9:30 p.m.) 1,700 cfs (8.34 ft); Mar. 14 (5:30 p.m.) 

1,930 cfs (8.77 ft); July 21 (4:30 a.m.) 6,700 cfs (16.50 ft).

* Discharge measurement made on this day.

a No gage-height record) discharge estimated on basis of recorded range in stage and records for 

nearby stations.

b Stage-discharge relation affected by ice.
POTOMAC RIVER BASIN 547 

Broad Run at Buckland, Va.

Location. Lat 38°46'50", long 77°40'22", on right bank at downstream side of bridge on 

U. S. Highway 29, at Buckland, Prince William County, 1.1 miles upstream from South Run.

Drainage area.--50.3 sq mi.

Records available. July 1950 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 284.58 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Average discharge. 6 years, 51.2 cfs.

Extremes.--Maximum discharge during year, 11,600 cfs July 20 (gage height, 13.08 ft), from 

rating curve extended above 3,200 cfs on basis of slope-area determination of peak flowminimum, 3.2 cfs Jan. 8, result of freezeup.

1950-56: Maximum discharge, that of July 20, 1956; minimum, 0.2 cfs Oct. 10, 1954.

Remarks. Records fair except those for periods of ice effect and no gage-height record, 

which are poor.

Rating table, water year 1955-56, except period of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.8

1.9 

3.0 

3.2 

3.4 

3.7

5.0 

9.0

56

110

3.0 

3.5 

4.0 

5.0 

7.0

175

335

550

1,080

3,180

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

3

3

4

5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

20

21

33

33

24

25

36

37 

38

39

30

31

Total

Mean

Cfsm

In.

Oct.

a38

a35

a35

aZQ

aZQ

aZQ

a30

a!35

a50

*a25

a!5

a!5

a!5

a!80

aT35

a70

a50

a35

a30

a35

a33

a 30

a!8

a!7

a!6

a 15

a 15 

a 15

a 20

a35

a20

1,131

36.5

0.726

0.84

Nov.

a!7

a!5

a!4

a!5

a!5

a!4

a!3

»a!7

a!6

30

49

39

34

34

33

35

34

30

33

38

31

39

36

35

22

20

30 

30

18

18

651

21.7

0.431

0.48

Dec.

16

16

19

22

20

19

18

18

18

16

14

*13

blO

blO

blO

b9

12

13

13

12

13

10

13

12

15

16

13 

10

11

12

11

438

13.8

O.Z74

0.33

Jan.

11

10

13

12

14

13

13

8.6

12

18

77

*58

35

36

36

23

20

18

19

30

18

18

18

17

14

15

13 

12

26

106

775.6

25.0

0.497

0.57

Feb.

45

91

134

114

108

353

»252

122

98

79

77

83

63

53

56

49

48

53

48

42

38

34

31

30

45

55

41 

38

34

2,313

76.3

1.53

1.64

Mar.

30

30

30

30

27

37

30

114

76

53

49

»45

53

500

T90

190

160

118

108

108

96

85

74

67

56

56

50 

46

48

49

42

3,637

85.1

1.69

1.95

Apr.

38

38

45

49

41

48

186

158

90

73

62

55

49

43

45

*66

53

42

40

36

33

30

30

28

38

37

36 

26

33

33

1,528

50.9

1.01

1.13

May

31

33

36

Z6

33

21

20

30

18

18

18

18

18

16

14

15

14

19

17

15

*14

13

13

13

T3

13

13

19

14

12

13

525

16.9

0.336

0.39

June

13

31

33

15

13

10

9.5

8.6

7.4

7.8

 7.4

6.6

5.4

574

5.4

9.0

7.8

6.6

8.3

7.4

7.4

63

46

30

14

10

9.0 

7.8

7.4

7.0

386.1

13.9

0.256

0.39

July

7.0

6.6

33~~ 6.3

657

53

35

33

*30

33

19

15

13

13

11

9.5

10

15

13

*3J300

1,360

£50

625

251

155

104

94 

83

90

70

55

6,037.3

194

3.86

4.45

Aug.

49

58

53

40

78

~70 102

53

40

30

36

34

*34

33

23

30

16

14

13

16

30

33

17

14

12

13

11 

11

10

9.5

9.0

939.5

30.0

0.596

0.69

Sept.

8.6

8.6

8.Z

7.8

7.4

40

25

13

11

»9.5

9.0

10

10

9.0

10

13

12

33

12

15

13

9.5

9.5

30

18

13

379

T§i

74

53

949.1

31.6

0.628

0.70

Calendar year 1955: Max 1,880 Mln l.o Mean 51.0 cfsm 1.01 In. 13.78

Water year 1955-56 : Max 2,000 Mln 5.4 Mean 49.7 Cfsm 0.988 In. 13.45

Peak discharge (base, 65o cfs). Feb. 6 (6 p.m.) 650 cfs (4.21 ft): Mar. 14 (12 m. ) 883 cfs

(4.66 ft); July 5 (3 a.m.) 1,740 cfs (6.31 ft); July 30 (9 p.m.) 11,600 cfs (13.08 ft); July 23

(13:30 a.m.) 1,340 cfs (5.28 ft); Sept. 37 (6:30 p.m.) 775 cfs (4.43 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 3 discharge measurements and records for 

nearby stations.

b Stage-discharge relation affected by Ice.
548 POTOMAC RIVER BASIN

Bull Run near Manassas, Va.

Location. Lat 38°47'50", long 77 0 27'30", on left bank at downstream side of bridge on 

State Highway 616, 0.5 mile downstream from Cub Run and 3.2 miles north of Manassas, 

Prince William County.

Drainage area. 147 sq mi.

Records available. October 1950 to September 1956.

Gage. ~~1929. Water-stage recorder. Datum of gage is 138.55 ft above mean sea level, datum of 

Average discharge. 6 years, 132 cfs.

Extreme s.--Maximum discharge during year, 11,200 cfs July 5 (gage height, 16.45 ft); minimum, 0.8 cfs Jan. 8, result of freezeup; minimum gage height, 1.15 ft Jan. 8, July 3. 

1950-56: Maximum discharge, 11,200 cfs Nov. 22, 1952, July 5, 1956; maximum gage 

height, 16.45 ft July 5, 1956; minimum discharge, 0.1 cfs many days in September, 

Oct. 14, 1954; minimum gage height, 1.02 ft Aug. 1, 1954.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating tables, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

1.6 

1.8

6.0 

7.0

8.3

16

28

44

173

326

835

1,120

1.2

1.3

2.0 

2.5

0.5

2.0

5.0

9.0

20

36

55

112

3.0

4.0

5.0

7.0

9.0

11.0

14.0

184

360

566

1,120

1,960

3,400

6,800

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

10

9.6

9.6

9.3

8.6

64

58

*24

16

13

11

405 

315

83 

48

38

30

26

23

21

19

17

16

15

15

15

20

33

24

1,412.7

45.6

0.310

0.36

Nov.

20

16

15

16

16

14

13

*14

17

26

103

^5

36

29 

26

25 

25

23

23

27

36

36

32

28

25

23

21

21

20

18

803

26.8

0.182

0.20

Dec.

16

16

17

20

20

19

17

17

16

16

15

*13

11

11 

11

bll 

bll

11

11

11

11

10

10

10

13

14

b!2

11

10

9.6

9.6

410.2

13.2

0.090

0.10

Jan.

9.6

1^3

9.6

10

11

11

10

10

9.3

*12

112

b!20

b70

b50 

b40

34 

30

b30

28

31

28

26

24

b23

b22

19

16

14

42

471

385

1,716.8

55.4

0.377

0.43

Feb.

148

410

751

512

474

1,090

1,620

369

261

197

181

288

163

120 

124

120 

107

184

149

106

86

67

57

53

103

186

95

76

58

8,155

281

1.91

2.06

Mar.

51

50

48

43

a 40

a36

a36

al,000

a700

a300

8150

»a!20

192

2.520 

1,150

608 

747

333

324

378

324

234

176

142

106

100

88

74

75

100

73

10,318

333

2.27

2.62

Apr.

60

53

56

92

66

57

635

1.050

261

162

124

100

83

69 

66

 200 

158

92

78

63

54

49

46

42

40

39

38

34

33

30

3,910

130

0.884

0.99

May

26

25

30

34

30

24

22

21

19

17

17

17

17

16 

14

12 

11

12

14

13

 12

10

9.5

9.5

8.6

JL1

8.2

12

16

12

106

602.2

19.4

0.132

0.15

June

28

29

65

32

19

14

10

8.6

7.4

7.0

6.2

5.8

5.0

 4.1 

3.2

2.3 

2.3

2.6

2.9

3.2

3.8

16

~68 109

53

14

7.8

4.7

3.5

2.6

540.0

18.0

0.122

0.14

July

1.8

1.7

TT§

672

6.600

270

142

65

*88

75

36

26

19

16 

14

12 

19

114

30

128

4,710

631

2,570

530

288

128

100

76

61

49

39

17,513.3

565

3.84

4.43

Aug.

33

30

30

26

44

~72 145

59

37

26

21

26

 69

27 

21

18 

14

12

10

14

65

53

26

18

14

12

10

8.6

7.8

7.4

1^6

962.4

31.0

0.211

0.24

Sept.

5.8

4.7

4.1

4.1

3^8

3.8

7.4

12

7.8

5.8

5.8

5.8

5.0

4.7 

5.0

5.4 

8.2

19

18

16

12

9.5

7.4

5.8

15

12

1.080

968

174

93

2,528.9

84.3

0.573

0.64

Calendar year 1955; Max 7,160 Mln 0.4 Mean 121 Cfsm 0.823 In. 11.20

Water year 1955-56; Max 6,600 Mln 1.7 Mean 134 Cfsm 0.912 In. 12.36

Peak discharge (base, 2,500 cfa). Feb. 7 (2 a.m.) 3,220 cfs (10.82 ft); Mar. 14 (9 p.m.) 4.510 

cfs (12.06 ft); July 5 (10 a.m.) 11,200 cfs (16.45 ft); July 21 (10 a.m.) 9,800 cfs (15.73 ft); 

July 23. (7:30 a.m.) 4,070 cfs (11.74 ft); Sept. 27 (11:30 p.m.) 2,900 cfs (10.45 ft).

* Discharge measurement made on this day.

a No gage-height record, discharge estimated on basis of recorded range In stage and records for 

Cedar Run near Catlett.

b Stage-discharge relation affected by Ice.
POTOMAC RIVER BASIN 549

Occoquan Creek near Occoquan, Va.

Location. Lat 38°42'20", long 77 0 19'35", on left bank 1.6 miles upstream from Sandy Run, 

4.8 miles upstream from Occoquan, Prince William County, and 5.9 miles downstream from 

Bull Run.

Drainage area. 546 sq mi.

Records available. February 1913 to May 1916, December 1920 to September 1923, June 1937 

to June 1956 (discontinued).

£. Water-stage recorder. Datum of gage is 76.21 ft above mean sea level, datum of 

929. Prior to Apr. 27, 1913, staff gage at same site and datum.

Average discharge. 22 years (1913-15, 1921-23, 1937-55), 490 cfs.

Extremes. Maximum discharge during period October 1955 to June 1956, 9,790 cfs Mar. 15 

(gage height, 15.17 ft); minimum, 36 cfs June 13 (result of discharge measurement).

1913-16, 1920-23, 1937-56: Maximum discharge, 37,000 cfs Oct. 16, 1942 (gage height, 

27.6 ft, from high-water mark in gage house), from rating curve extended above 15,000 

cfs by logarithmic plotting; minimum not determined; minimum dally, 1.0 cfs Dec. 11, 12, 

1941.

Flood in April 1937 reached a stage of 24.87 ft, from high-water mark in gage house 

(discharge, 29,200 cfs, from rating curve extended above 15,000 cfs by logarithmic 

plotting).

Remarks. Records good. Flow regulated by dams above station on Occoquan Creek and Bull 

Run from June 1937 to November 1949. Only occasional regulation since.

Revisions (water years).--WSP 951: 1937-41. WSP 1171: 1938-41(M).

Rating table, Oct. 1, 1955, to June 12, 1956 (gage height, in feet, 

and discharge, In cubic feet per second)

1.8 

2.0 

2.5 

3.0 

4.0

33

47

97

178

423

5.0

7.0

10.0

13.0

773

1,780

3,960

7,010

Discharge, In cubic feet per second, October 1955 to June 1956

Day

1

2

3

4

5

6

7 

S 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

60

58

55

54

53

53

if 

366

202

*116

85

72

570

J^.29Q

438

257

192

157

128

113

101

91

89

76

73

73

73

76 

114

110

5,351

173

0.317

0.37

Nov.

95

89

85

87

82

80

82 

85 

*85

93

227

306

T54

150

124

114

118

113

118

130

161

186

178

159

138

127

116

114

106 

101

3,843

128

0.234

0.26

Dec.

91

89

92

100

106

106

102 

96 

95

91

87

83

*76

73

75

72

71

71

71

67

66

62

60

61

65

69

69

65

60 

60

57

2,408

77.7

0.142

0.16

Jan.

56

54

55

60

61

62

60 

54 

54

65

*131

380

352

221

168

165

150

118

120

122

113

113

119

104

97

101

89

78

104 

673

1 , 240

5,339

172

0.315

0.36

Feb.

532

564

2,010

1,720

2,070

2,010

*6,150 

1,660 

995

773

618

905

654

500

438

438

380

438

549

394

339

286

246

226

252

423

366

E83

241

26,440

912

1.67

1.80

Mar.

204

190

186

182

184

232

114 

701 

2,160

673

484

438

516

3,920

*6.160

1,780

2,910

1,340

1,090

1,340

1,060

794

654

549

468

408

380

334

308 

366

352

30,477

983

1.80

2.08

Apr.

283

250

241

293

283

252

1,320 

5-. 620 

1,160

712

a500

a400

a350

a 300

a 300

al , 500

a800

*a500

366

300

239

232

219

204

190

184

178

172

165 

146

15,661

522

0.956

1.07

May

136

131

141

159

155

138

127 

119 

112

107

101

100

101

98

87

84

72

77

75

77

76

*72

71

68

62

60

M

82

72 

77

163

3,086

99.5

0.182

0.21

June

135

127

215

186

135

71

68 

62 

53

51

49

42

t36

-

-

-

-

-

-

-

.

-

-

_

-

.

-

-

-

-

-

-

-

July Aug. Sept.

Calendar year 1955: Max 15,200 Mln 16 Mean 513 Cfsm 0.940 In . 12.73

Water year 1955-56: Max - Mln - Mean - Cfsm - In. -

Peak discharge (baae. 8,000 of el. Mar. 15 (3:30 a.m.) 9,790 cfs (15.17 ft).

* Discharge measurement made on this day.

t Result of discharge measurement.

a No gage-height record; discharge estimated on basis of records for Cedar Run near Catlett.

505690 O - 59 - 36
550 POTOMAC RIVER BASIN

Mattawoman Creek near Pomonkey, Md.

Location. Lat 38 0 35'45", long 77 0 03'25", on left bank 50 ft downstream from bridge on

 State Highway 227, 80 ft downstream from Old Womans Run, and 1.2 miles southeast of 

Pomonkey, Charles County.

Drainage area. 57.7 sq ml.

Records available. November 1949 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 40 ft (from topographic map).

Average discharge. 6 years (1950-56), 58.0 cfs.

Extremes. Maximum discharge during year, 2,480 cfs Oct. 14 (gage height, 5.69 ft); no

 flow Sept. 3-6, 11, 14, 15.

1949-56: Maximum discharge, 9,300 cfs Aug. 13, 1955 (gage height, 7.52 ft), from 

rating curve extended above 6,000 cfs; no flow at times each year.

Remarks. Records good except those for periods of doubtful or no gage-height record, 

which are fair.

Rating table, water year 1955-56 (gage height. In feet, and 

discharge, In cubic feet per second)

1.5 

1.7 

3.0 43

2.5 

3.0 

3.5 

4.0 

4.5 

5.0 

5.5

86

149

345

390

690

1,240

3,070

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

34

25

26

27

28

29

30

31

Itotal

Mean

Cfsm

In.

Oct.

a5. 4

a5.3

a5.2

a5.0

a4.5

a6.0

a6.2

a 35

a30

all

a!3

9.3

*8.9

1.860

1,190

442

160

85

64

53

46

39

34

33

33

33

29

27

37

d53

d59

4,389.7

142

2.46

3.83

Nov.

d39

d33

d30

d38

*d26

24

¥5

28

36

31

99

88

57

45

38

35

33

26

43

85

74

58

47

41

36

33

31

30

27

34

1,338

41.3

0.716

0.80

Dec.

23

23

38

29

28

35

33

23

23

28

33

31

19

19

21

19

18

18

*19

18

17

16

17

18

31

21

17

15

16

16

16

638

30.6

0.357

0.41

Jan.

16

15

16

18

18

17

17

15

16

43

133

148

137

90

63

50

46

41

40

40

38

35

38

34

37

38

33

23

35

66

61

1,376

44.4

0.769

0.89

Feb.

41

49

*95

149

220

384

432

440

333

130

95

104

85

72

64

58

56

63

65

57

49

43

38

37

53

59

51

45

37

3,183

110

1.91

3.05

Calendar year 1955: Max 5,610 Min 0

Mar.

34

33

34

39

41

36

34

*79

163

114

78

73

76

385

465

504

394

376

331

160

114

88

76

70

61

56

53

47

*46

49

43

3,949

127

3.30

2.55

Apr.

38

36

39

46

37

40

135

333

195

96

73

59

53

46

44

81

100

75

63

53

45

41

38

35

34

34

35

33

30

ZB

1,871

62.4

1.08

1.31

May

*35

25

37

44

36

30

38

36

23

21

30

19

19

17

14

13

12

12

13

11

9.8

9.3

8.4

8.4

7.3

6ti

10

22

16

33

29

592.5

19.1

0.331

0.38

June

19

77

111

56

38

*19

16

12

9.8

9.3

8.0

6.4

4.7

3.3

3.0

2.4

51

51

17

12

10

13

9.8

19

21

17

10

6.8

4.7

3.4

638.5

31.0

0.364

0.41

July

1.8

.8

.5

*3TO

432

232

53

27

22

33

21

14

13

7.6

5.4

3.9

4.8

19

11

9.3

d36

30

93

132

49

23

20

20

21

16

11

1,332.1

43.6

0.738

0.85

Aug.

9.3

10

14

11

11

14

14

12

8.8

6.4

4.4

3.6

5.7

*7.3

6.8

4.7

3.4

2.4

1.6

2.4

15

16

9.8

6.4

4.2

3.4

2.6

1.7

.9

.5

0 

Jj£.

213.4

6.88

0.119

0.14

Sept.

0.1

.1

0

O

0

0

.7

.5

.3

.1

0

.1

.1

O

0

.3

1.0

1.3

.5

.3

.1

.1

.2

.3

.4

.2

4.4

11

12

8.4

42.2

1.41

0.024

0.03

Mean 85.8 Cfsm 1.49 In. 30. 3O

Water ;ter year year 1955-56: 1955-56: Max Max 1,860 1,860 Mln Mln 0 0 Mean Mean 53.1 53.1 Cfsm Cfsm 0.930 0.930 In. In. 13.55 13.55

Peak discharge (base, 4OO efs). Oct. 14 (Z p.m.) 2,480 cfs (5.69 ft); Feb. 8 (4 a.m.) 470 cfs 

(4.18 ft); Mar. 16 (1 a.m.) 534 cfs (4.39 ft); July 5 (2:30 p.m.) 480 cfs (4.2O ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage, weather records, 

and records for nearby stations.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph, weather 

records, and records for nearby stations.
POTOMAC RIVER BASIN 551

South Pork Quantico Creek near Independent Hill, Va,

Location. Lat 38°35'14", long 77°25'44", on left bank at upstream side of bridge on State 

Highway 619, 3.4 miles south of Independent Hill, Prince William County, 5.6 miles west 

of Dumfries, and 6.5 miles upstream from Quantlco Creek.

Drainage area. 7.50 sq ml.

Records available. May 1951 to September 1956.

Gage. Water-stage recorder and concrete control. Datum of gage Is 238.88 ft above mean 

sea level, datum of 1929, Culpeper supplementary adjustment of 1943.

Average discharge. 5 years, 6.40 cfs.

Extremes. Maximum discharge during year, 660 cfs July 5 (gage height, 7.42 ft); minimum, 

 U.06 cfs Sept. 24, 26; minimum gage height, 1.96 ft Sept. 14, 15.

1951-56: Maximum discharge, 870 cfs Sept. 1, 1952 (gage height, 7.98 ft); no flow 

Sept. 26 to Oct. 13, 1954.

Remarks.--Records fair except those for periods of no gage-height record, which are poor.

Rating table, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Jan. 21 to Feb. 13, May 6-21, Sept. 27-30)

1.9

1.95

2.0

2.05

2.1

2.2

0.07 

.16 

.29 

.60

1.2

3.0

2.4 

2.6 

3.0 

4.0 

5.0

8.5

18

43

117

201

.Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0.53

.60

.46

74T

.46

.46 

.46

6.4

2.4

 1.1

.92

.80

.68

-47~S.2

3.4

2.4

1.9

1.7

1.4

1.2

1.1

.92

1.1

1.1

.92

.92

.92

1.2

6.0

2.4

100.51

3.24

0.432

0.50

Nov.

1.5

ITS' 1.4

1.7

1.5

1.4 

1.4 

1.9

*1.7

2.3

376" 8.9

2.6

2.4

2.1

2.1

1.9

1.5

2.1

3.4

3.4

3.2

2.6

2.4

2.1

2.1

1.9

1.9

1.7

1.7

69.9

2.33

0.311

0.35

Dec.

1.7

1.9

2.4

274

2.4

2.4 

2.1 

2.1

2.4

2.4

2.3

*1.9

1.7

1.7

1.9 ! ,

al.5

al.3

55.5

1.79

0.239

0.28

Jan.

al.l

al.l

al.3

al.3

al.3

al.2 

al.2 

al.2

*al.2

3.9

9.8

87Z

4.4

3.0

2.4

2.1

1.9

1.5

1.2

1.2

.92

.80

.80

.80

.53

.46

.40

.34

g!o

3 2

70.15

2.26

0.301

0.35

Feb.

1.1

?75

8.2

16

6.8

66 

*40 

8.2

6.4

5.7

6.4

9.4

7.4

6.4

6.0

5.7

5.4

8.5

7.4

6.8

6.0

6.0

5.4

5.4

8.5

8.5

7.4

7.8

6.8

__ _ _ _ .

292.4

10.1

1.35

1.46

Mar.

6.8

6.8

a6

a6

a5

a5 

a5 

a20

a!5

a7

a5

a5

*a8

112 ~54

26

21

12

11

11

9.4

7.4

6.8

6.4

5.0

5.0

4.6

4.4

47?

5.C

4.6

380.6

12.3

1.64

1.89

Apr.

4.0

4.0

4.2

4.4

4.0

52 55-

12

7.8

6.8

6.0

5.0

4.8

5.0

14

*7.1

4.G

4.4

3.8

3.6

3.6

3.4

2.8

2.8

3.0

2.8

2.6

2.6

2.1

230.0

7.67

1.02

1.14

May

1.9

2.1

3.6

3.4

1.9

1.2 

1.1

.68

768

.80

1.7

1.7

1.5

1.4

1.5

.92

1.2

1.4

1,4

 1.2

1.1

1.1

.92

.80

.68

1.2

2.3

1.4

2.4

4.4

48.78

1.57

0.209

0.24

June

3.6

20

6.8

2.8

1.9

1.4 

1.2 

1.1

.80

.68

.60

.60

.46

*.40

.40

.46

.53

.46

.60

.53

.80

1.1

1.2

1.4

1.4

1.1

.60

.53

.46

.34

54.25

1.81

0.241

0.27

July

0.29

.L26.

.26

7.7

141

2.6 

1.5

*1.1

.92

.68

.53

.46

.46

.34

.29

.29

.40

.34

.92

2.6

3.1

67

56

6.4

3.0

2.3

1.9

1.5

1.5

1.1

311.14

10.0

1.33

1.53

Aug.

0.80

13

T.8

2.1

6.0

3.2

3.0

al.9

al.5

al.2

a. 9

*.60

.68

.60

.60

.46

.46

.40

.46

4.2

1.7

.68

.46

.34

.34

.29

.26

.23

.20

 18

55.34

1.79

0.239

0.28

Sept.

0.18

.18

.16

.16

.16

.14 

.18 

.18

.18

».14

.12

.12

.12

.10

.12

.20

.18

.23

.20

.16

.08

.07

757

.07

.08

.07

~2.1 17

.40

.20

23.35

0.778

0.104

0.12

Calendar year 1955: Max 264 Win 0.07 Mean 6.39 Cfsm 0.852 In. 11.57

Water year 1955-56: Max 141 Min 0.07 Mean 4.62 Cfsm 0.616 In. 8.41

Peak discharge (base, 120 efs). Feb. 6 (8 p.m.) 220 cfs (5.19 ft); Mar. 14 (12:30 p.m.) 201 cfs 

(5.00 ft): AprT 7 (11 p.m.) 161 cfs (4.53 ft); July 5 (3:30 a.m.) 660 cfs (7.42 ft); July 23 

(10. p.m.) 245 cfs (5.44 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

nearby stations.
552 POTOMAC RIVER BASIN

North Branch Chopawamsic Creek near Independent Hill, Va.

Location. Lat 38°33'58", long 77°25'48", on left bank 1.0 mile upstream from Chopawamsic 

Creek, 4.8 miles south of Independent Hill, Prince William County, and 5.5 miles west 

of Dumfries.

Drainage area.--5.79 sq mi.

Records available. May 1951 to September 1956.

Gage. Water-stage recorder. Datum of gage is 216.43 ft above mean sea level (Bureau of 

Yards and Docks benchmark).

Average discharge. 5 years, 4.56 cfs.

Extremes. Maximum discharge during year, 174 cfs July 5 (gage height, 6.08 ft); minimum, 

0.05 cfs July 3; minimum gage height, 1.63 ft Sept. 14, 15.

1951-56: Maximum discharge, 298 cfs Nov. 21, 1952 (gage height, 8.04 ft); no flow 

for many days in October 1954.

Remarks. Records fair except those for periods of no gage-height record and indefinite 

stage-discharge relation, which are poor.

Rating table, water year 1955-56, except period of Indefinite stage-discharge 

relation (gage height. In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 14 to Nov. 11}

1.6

1.65

1.7

1.75

0.03 

.11 

.30 

.60

1.0

2.3

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

1.0 

1.0

1.0

.95

.95

1.0

1.0

7.6

2.5

*1.0

.95

.85

.85

~7.4 30

3.3

2.2

1.8

1.5

1.2

1.0

1.0

.95

1.4

1.8

1.9

1.9

1.8

2.0

5.6

2.3

89.70

2.89

0.499

0.58

Nov.

1.5 

14T7T

1.9

1.4

1.4

1.9

2.7

 1.9

2.6

11

T.o

5.0

4.4

4.0

3.9

3.8

3.3

5.2

6.7

6.5

5.7

5.0

4.4

a3.6

a3.3

a2.6

a2.5

2.0

2.0

109.0

3.63

0.627

0.70

Dec.

2.0

2.3

273

2.3

2.2

2.0

2.0

2.2

2.2

1.9

 1.9

1.9

1.9

2.0

1.9

1.8

1.8

2.0

1.9

1.8

1.8

1.8

1.8

1.9

1.8

1.6

1.5

lie

1.5

59.0

1.90

0.328

0.38

Jan.

1.4

1.5

1.6

1.6

1.4

1.4

1.3 *T73

3.4

7.8

5.8

3.8

3.0

2.7

2.6

2.4

2.3

2.3

2.6

2.3

2.2

2.3

2.0

2.2

2.0

2.0

1.9

3.8

9.0

T76

85.9

2.77

0.478

0.55

Feb.

3 2

10 '

15

12

40

*30

9.9

6.7

5.4

5.6

6.4

4.8

4.0

4.0

3.6

3.8

5.0

4.2

3.8

3.3

3.0

2.9

2.9

3.9

3.3

3.0

2.9

2.6

210.0

7.24

1.25

1.35

Mar.

H2.6

2.9

2.6

2.6

2.6

9.0

7.1

5.0

4.6

4.6

*6.5

56

rs

16

16

8.4

7.7

8.0

5.8

5.0

4.5

4.4

3.8

3.8

3.4

3.3

3.4

3.8

3.3

229.9

7.42

1.28

1.48

Apr.

3.0 

375

3.2

3.4

3.0

5.0

3226"

9.2

6.5

5.7

5.1

4.6

4.4

4.6

9.5

*5.6

4.6

4.4

3.9

3.6

3.6

3.6

3.3

3.3

3.3

3.2

e3.2

e3.2

e3.1

180.1

6.00

1.04

1.16

May

e2 8 

e2i7

e4.0

ez'.O

e2.0

el. 7

el. 5

el. 5

el.O

el. 5

e2.0

e2.0

el. 8

el. 8

el. 8

1.9

2.3

1.9

1.9

*1.6

1.5

1.5

1.3

1.0

1.0

2.2

3.2

1.5

1.2

1.6

60.2

1.94

0.335

0.39

June

1.8 

6.9

475

2.3

1.5

1.2

.85

.76

.60

.60

.60

.41

.41

*.26

.26

.26

.35

.30

.35

.30

.53

.60

.35

.26

.30

.18

.18

.14

.11

.09

27.25

0.908

0.157

0.18

July

0.09

.o"7 z'.s

39_

2.7

2.4

1.2

.85

*.68

.47

.35

.30

.30

.22

.14

.22

.41

.26

1.2

2.3

.85

4.2

6.1

2.6

1.2

.85

.53

.60

.35

.30

73.61

2.37

0.409

0.47

Aug.

0.26 

1.4

573

1.0

3.9

5.1

3.8

3.8

1.8

1.0

.76

.53

*.53

.60

.53

.30

.26

.26

.22 .?6~

3.2

1.6

.85

.53

.41

.47

.35

.35

.30

.30

.35

43.32

1.40

0.242

0.28

Sept.

0.35 

.30

.22

.22

.26

.26

.41

.53

.30

*.14

.11

.11

.11 Sf-

.IT

.35

.47

.53

.30

.22

.18

.14

.14

.22

.22

.22

7.7

37T

1.6

.85

20.09

0.670

0.116

0.13

Calendar year 1955; Max 144 Mln 0.01 Mean 4.55 Cfsm 0.786 In. 10.66

Water year 1955-56: Max 56 Mln 0.07 Mean 3.25 Cfsm 0.561 In. 7.65

, Peak discharge (base. 90 cfs). Feb. 6 (6:30 p.m.) 110 cfs (4.95 ft)j Mar. 14 (1 p.m.) 102 cfs 

(4.76 ft); July 5 (4 a.m.) 174 cfs (6.08 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby stations.

e Stage-discharge relation Indefinite; discharge estimated on basis of records for nearby stations.
POTOMAC RIVER BASIN 553

Middle Pork Chopawamsic Creek near Garrisonville, Va.

Location.--Lat 38°33'26", long 77°25'32", on left bank 300 ft upstream from highway culvert, 0.4 mile upstream from confluence with North Branch Chopawamsic Creek, and 

5.6 miles north of Garrisonville, Stafford County.

Drainage area. 4.51 sq mi.

Records available.--May 1951 to September 1956.

Gage. Water-stage recorder. 'Datum of gage is 192.48 ft above mean sea level (Bureau of 

Yards and Docks benchmark).

Average discharge. 5 years, 3.21 cfs.

Extremes. Maximum discharge during year, 58 cfs Feb. 6 (gage height, 3.54 ft); minimum, 

0.08 cfs June 18 (gage height, 1.72 ft).

1951-56: Maximum discharge, 340 cfs Aug. 13, 1955; minimum, 0.01 cfs Sept. 30 to 

Oct. 2, 1954; minimum gage height, 1.55 ft Sept. 30, Oct. 1, 1954.

Remarks. Records fair except those below 1.0 cfs and those for period of no gage-height 

record, which are poor.

Rating table, water year 1955-56 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Nov. 5-15)

1.7

1.75

1.8

1.85

1.9

2.0

0.06 

.15 

.32 

.60 

.95

1.8

2.1

2.2

2.3 

2.5 

3.0

2.8 

4.2

6.0

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

Z 

3

4

5

6

8 

9

10

11

12

13

14

IE.

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

l!s

1.3

1.3

1.3

2.1

1.5

*1.3

1.3

1.4

15 "1.6

2.5

2.0

1.8

1.7

1.5

1.5

1.5

1.4

1.5

1.5

1.4

1.4 

1.4

1.4

2.6

1.4

67.4

2.17

0.481

0.55

Nov.

173-

1.5

1.4

1.4

1.5

*1.5

1.6

3.6

TTff

1.6

1.4

1.4

1.4

1.4

1.2

1.9

2.5

2.5

2.1

2.0

1.9

1.8

1.7

1.6 

1.5

1.4

1.4

50.6

1.69

0.375

0.42

Dec.

1.4 

1.5

T7ET

1.5

1.5 

1.5

1.5

1.5

1.5

1.5

1.5

.5

.5

.4

.4

.4

.4

.3

1.3

1.3

1.3

1.3

1.3

1.3

fcf

1.2

1.2

1.2

43.0

1.39

0.308

0.36

Calendar year 1955: Max 120

Jan.

TTZ 

1.2

1.3

1.3

1.2 

1.2

*1.5

3.1

4.8 571

2.4

2.0

1.9

1.7

1.7

1.6

1.8

1.8

1.6

1.5

1.8

1.5

1.4

1.4

1.4 

1.4

2.3

4.8

2.7

59.3

1.91

0.424

0.49

Feb.

2.1 

5.6

8.0

6.8

19

5.4

4.5

4.5

5.4

3.7

3.2

3.1

2.9

2.9

3.7

3.1

2.9

2.7

2.5

2.4

2.5

3.1

2.8

2.7 

2.5

2.3

136.6

4.71

1.04

1.16

Mar.

H2.5

2.8

2.6

2.3 

2.3

5.2 

4.0

2.9

2.9

2.8

*3.7

26

TT

10

9.0

6.0

5.6

5.4

4.3

3.8

3.6

3.4

3.0

3.0

2.8 

2.8

3.0

3.1

2.8

147.3

4.75

1.05

1.21

Apr.

2,6 

2.5

?7T

2.8

2.5

3,8

19

TS 

7.6

5.8

5.2

4.3

4.2

3.8

3.8

4.0

*4.5

4.3

4.0

3.7

3.6

3.6

3.2

3.1

3.0

3.1

3.0 

2.9

2.9

2,8

138.3

4.61

1.02

1.14

May

2.6 

2.8 

3.8 376-

3.4

2.8 

2.7

2.5 

2.2

2.3

2.3

2.2

2.2

1.9

1.8

1.8

1.7

1.7

1.7

1.7

 1.5

1.4

1.4

1.3

1.3

1.3

2.0

1.6

1.1

T7T

1.2

62.9

2.03

0.450

0.52

June

1.3 

4.2 

27?

1.4

.95

.95 

.95

.87 

.80

.87

.87

*.66

.60

.66

.73

.80

.48

.32

.42

.36

.48

.54

.42

.32

.42

.32

.32 

.28

.28

.24

24.01

0.800

0.177

0.20

July

0.28 

.24 

176- .21

10

.4

.4

.1 

.0

.80

.66

.60

.54

.54

.42

.36

.60

.95

.60

1.2

1.6

.80

2.3

2.2

1.3

.87

.87 

.73

.66

.60

.32

36.75

1.19

0.264

0.30

Aug.

0.32 

1.3

1.0

.80

2.0

2.2

TT?

1.4 

.87

.66

.60

.54 *.42

.48

.48

.36

.32

.24

.24

.28

1.3

.87

.66

.48

.28

.21

.21 

.18

.15

.12

71?

20.49

0.661

0.147

0.17

Sept.

0.12 

"71? 

.12

.12

.12

.15 

.21

.21 

.18

.18

*.15

.15

.15

.15

.18

.21

.28

.28

.24

.21

.21

.18

.21

.21

.21

.21

3.2 

1.4

.54

.42

10.32

0.344

0.076

0.08

Min 0.06 Mean 3.64 Cfsm 0.807 In. 10.95

Water year 1955-56: Max 26 Min 0.12 Mean 2.18 Cfsm 0.483 In. 6.56

Peak diseharKe (base, 60 efs). No peak above base. 

* Discharge measurement made on this day. 

Note. No gage-height record Nov. 25 to Jan. 9j discharge estimated on basis of 2 discharge measurements and records for nearby stations.
554 POTOMAC RIVER BASIN

South Branch Chopawamsic Creek near Garrisonville, Va.

Location. Lat 38°32 I 22" (corrected), long 77°25'30", on right bank 1.8 miles upstream 

from mouth and 4.3 miles north of Garrisonville, Stafford County.

Drainage area. 2.56 sq mi.

Records available. May 1951 to September 1956.

Gage. Water-stage recorder. Datum of gage is 206.03 ft above mean sea level (Bureau of 

Yards and Docks benchmark).

Average discharge. 5 years, 2.19 cfs.

Extremes. Maximum discharge during year, 225 cfs July 4 (gage height, 6.09 ft); no flow 

part of day July 3; minimum gage height, 1.35 ft July 3.

1951-56: Maximum discharge, 320 cfs Mar. 15, 1953 (gage height, 7.07 ft), from 

rating curve extended above 150 cfs by logarithmic plotting; no flow part of day 

July 3, 1956; minimum gage height, that of July 3, 1956.

Remarks. Records fair except those below 0.5 cfs and those for periods of ice effect or 

no gage-height record, which are poor.

Rating tables, water year 1955-56, except periods of Ice effect (gage

height, In feet, and discharge, In cubic feet per second)

(Shifting-control method used Aug. 5-15)

1.5

1.6

1.7

1.8

1.9

Oct. 1 to Feb. 5

0.70

1.0 

1.6 

2.6 

3.8

Feb. 6 to Sept. 30

2.3 

2.5 17

1.35

1.4

1.45

1.5

1.6

1.7 

1.9

.90 

1.9

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

0.88

.88

.88

.88

.88

.85

.85

5.2

.97

.85

*.76

.73

TTS

15 "2.8

1.5

1.2

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.97

.97

1.0 1.1

1.0

50.01

1.61

0.629

0.73

Nov.

aO.95

a. 9

a. 9

a. 85

a. 85

a. 9

a. 9

a. 95

*a.9

2.0

2.0

.97

.88

.85

.85

.85

.82

172" .79

i!z

1.1

.97

.94

.91

.91

.88

.88

.88

.85

'

29.68

0.9B9

0.386

0.43

Dec.

0.85

.85

.85

.85

.85

.85

.85

.85

.85

.85

.85

.88

*7BT

.79

.76

b.75

.76

.73

b.7

bTT

b.75

b.75

b.7

.79

.79

.76

b.7

b.75

b.7

b. 8

b.75

24.48

0.790

0.309

0.36

Jan.

bO.75

b.75

.79

.79

.76

.76

b.75

b.75

*b.75

1.4

2.1

T74

1.0

.94

.91

.88

.88

.85

.85

.85

.85

.88

.85

b.85

b.85

b.8

b.8

b.85

1.0

1.2

1.1

28.94

0.934

0.365

0.42

Feb.

1.1

172

1.9

3.8

2.8

14

*5.8

4.0

3.4

3.0

3.2

3.2

2.9

2.7

2.7

2.8

2.8

2.8

2.9

2.9

a2.5

a2

a2

a2

a2.5

a2.5

a2

a2

a2

92.4

3.19

1.25

1.35

Mar.

al.5

aT75

al.5

a2

al.5

al.5

a2

3.2

2.4

2.0

1.9

1.9

2.3

~9.0 11

6.7

6.7

5.9

5.6

5.5

5.3

a4.5

a4

a3.5

a3

a3

a2.5

a2.5

a2.5

a3

a3

112.4

3.63

1.42

1.64

Apr.

a2.5

a2

a2.5

a2.5

a2

3.6

5.0

a8.5

a7

a6

a5

a4.5

a4

a3.5

a2.5

a2

*al.5

274

2.3

2.1

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.8

1.7

1.7

90.1

3.00

1.17

1.30

May

1.6

1.8

2.3

2.2

1.9

1.8

2.6

iTff

1.6

1.6

1.6

1.5

1.4

1.3

1.1

1.2

1.2

1.3

1.2

1.3

1.0

*.90

.90

.81

.72

.72

1.6

1.4

.90

. 81

.72

42.78

1.38

0.539

0.62

June

0.81

3.8

?7?

al.5

al.o

a. 9

a. 9

a. 8

a. 7

a. 6

.55

.47

.47

*.39

.18

.18

.24

.24

.24

.24

.47

.31

.13

.13

.18

.13

.13

.09

.06

759

18.13

0.604

0.236

0.26

July

0.06

.04

.02

11

14

1.3

7.4

1.8

1.2

*.72

.47

.39

.39

.39

.18

.13

.77

.63

.31

2.4

1.1

1.9

2.9

1.3

1.0

.81

.72

.55

.47

.47

.47

55.29

1.78

0.695

0.80

Aug.

0.39

2.0

.72

.55

4.2

2.9

2.3

2.2

1.9

1.7

1.6

1.5

*1.4

1.3

1.3

1.1

1.1

1.0

.90

1.0

1.9

1.1

.90

.72

.63

.55

.55

.47

.39

.31

.24

38.82

1.25

0.488

0.56

Sept.

0.18

.18

.09

755

.09

.18

.39

.24

.13

.13

*.13

.24

.18

.13

.31

.31

.72

.39

.18

.18

.13

.13

.18

.24

.31

.31

14~2~.l

1.5

1.2

24.57

0.819

0.320

0.36

Calendar year 1955: Max 57 

Water year 1955-56: Max 15

Min 0.28 

Mln 0.02

Mean 2.28 

Mean 1.66

Cfsm 0.891 In. 12.09 

Cfsm 0.648 In. 8.83

Peak discharge (base. SO cfs).--July 4 (11:30 p.m.) 225 cfs (6.09 ft); Sept. 27 (12 m.) 85 cfs 

(4.28 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of reconstructed gage-height graph and records for nearby stations.

b Stage-discharge relation affected by Ice.
POTOMAC RIVER BASIN 555

Beaverdam Run near Garrisonville, Va.

Location.--Lat 38°30'25", long 77°25'45", on left bank 2.2 miles north of Garrisonville, 

Stafford County, and 3.4 miles upstream from mouth.

Drainage area. 12.7 sq mi.

Records available. May 1951 to September 1956.

Gage. Water-stage recorder. Datum of gage is 150.43 ft above mean sea level (Bureau of 

Yards and Docks benchmark).

Average discharge. 5 years, 10.4 cfs.

Extremes.--Maximum discharge during year, 178 cfs Mar. 14 (gage height, 3.98 ft); minimum, 

0.01 cfs July 4.

1951-56: Maximum discharge, 1,370 cfs Aug. 15, 1955 (gage height, 7.03 ft); minimum 

daily, 0.01 cfs Sept. 26 to Oct. 14, 1954.

Remarks. Records good except those below 0.5 cfs or those for periods of ice effect, which 

are poor.

Rating tables, water year 1955-56, except periods of Ice effect 

height, In feet, and discharge, In cubic feet per second)

1.4

1.45

1.5

0.03 

.08 

.17 

.34

.57

Oct. 1 to Nov. 10, 

Dec. 20 to May 6, 

June 2 to Sept. 30

1.6 1.2

1.7 2.1

1.9 4.5

2.1 8.2

2.4 18

Nov. 11 to Dec. 19, 

May 7 to June 1

2.7 36

3.0 60

3.5 105

1.7 2.7

1.8 4.0

1.9 5.5

2.0 

2.2 

2.4

7.2

12

18

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2.4

2.5

2.2

2.1

2.1

2.1

2.0 lT~

7.4

3.8

*2.9

2.7

2.5

57

Iff

8.0

5.6

5.0

4.4

4.1

3.6

3.5

3.4

3.5

3.5

3.5

3.5

3.5

3.5

11

5.8

202.1

6.52

0.513

0.59

Nov.

4.5

4.2

475

5.0

4.5

4.2

4.4

5.8

5.1

5.3

17

9.4

7.6

6.9

6.7

6.5

6.2

5.5

7.2

12

10

8.4

7.6

6.9

6.3

6.3

6.0

6.3

5.8

5.5

201.6

6.72

0.529

0.59

Dec.

5.4

5.8

7.2

770

6.7

6.2

5.8

5.8

6.0

6.3

5.8

5.8

*5.5

5.2

b5

b5

b5

5.1

5.4

4.6

3.8

4.2

4.1

4.2

5.0

4.5

4.2

4.6

3.5

4.1

4.2

161.0

5.19

0.409

0.47

Jan.

4.1

3.5

378

4.4

4.1

4.2

4.1

4.1

*3.6

5.8

18

T3

8.2

6.6

5.6

5.1

5.1

4.8

5.0

5.5

5.0

5.0

5.5

5.5

b5

4.6 4. a

4.8

6.3

17

9.8

191.9

6.19

0.487

0.56

Feb.

6.0

875

22

32

33

62

*78

?5

17

13

13

17

12

10

9.5

8.7

8.7

11

10

9.0

7.8

7.2

6.8

6.4

9.3

7.8

7.0

7.2

6.0

470.9

16.2

1.28

1.38

Mar.

5.8

672

6.2

6.8

6.4

6.2

6.2

13

15

9.0

8.2

8.5

*11

95

5T

35

42

22

20

20

15

13

12

11

9.5

9.5

9.0

8.5

9.0

10

8 . 7

508.7

16.4

1.29

1.49

Apr.

7.8

7.6

8.0

8.5

7.8

8.8

58

74

53

15

13

11

9.8

9.3

9.5

22

*13

10-

10

8.7

8.0

8.0

7.6

7.2

7.2

6.8

6.9

6.9

6.8

6 . 2

406.4

13.5

1.06

1.18

May

5.5

5.8

9.0

8.7

7.2

6.2

!A*

7.2

6.2

5.8

6.0

6.0

5.8

5.2

4.2

4.3

3.8

4.5

4.0

4.0

3.8

»3.6

3.4

3.1

2.7

2.7

4.0

6.7

3.8

3.2 s!i

158.9

5.13

0.404

0.47

June

2.7

~8.9 11

4.1

2.9

2.4

2.3

1.9

1.6

1.6

1.6

1.3

1.0

».84

.72

1.1

1.2

1.1

.90

.84

.98

1.4

1.0

.73

.57

.46

.39

.27

.16 .16"

56.12

1.87

0.147

0.16

July

0.17

.09

.04

6.3

39.

4.8

3.5

3.5

2.8

*2.1

1.4

1.0

.72

.78

.67

.43

.99

1.3

1.2

2.0

7.1

3.5

9.5

6.6

4.2

2.6

2.0

1.7

1.5

1.4

1.3

114.19

3.68

0.290

0.33

Aug.

1.2

2.6

2.8

2.1

6.7

7.6

472

5.3

2.6

2.1

1.7

1.2

*1.0

.62

.72

1.1

.78

.57

.57

.52

1.9

2.4

1.4

1.1

.84

.78

.67

.57

.52

.30

.16.

56.62

1.83

0.144

0.17

Sept.

0.20

.27

.20

.30

.11

.27

.67

.47

.38

.38

*.34

.30

.27

.27

.20

.47

.57

.67

.47

.47

.23

.23

.38

.38

.38

.34

~9.6 14

3.4

2.1

38.32

1.28

0.101

0.11

Calendar year 1955 : Max 564 Mln O.05 Mean 12.4 Cfsm 0.976 In. 13.19

Water year 1955-56 : Max 95 Mln O.04 Mean 7.01 Cfsm O.552 In. 7.50

Peak discharge (base. 150 cfs).--Feb. 6 (11:30 p.m.) 164 cfs (3.19 ft)j Mar. 14 (5:30 p.m.) 178 cfs 

(3.98 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
556 POTOMAC RIVER BASIN

Chaptioo Creek at Chaptioo, Md.

Location. Lat 38°22' 45" , long 76°46'50", on right bank at downstream side of wooden 

highway bridge, 0.8 mile north of Chaptico, St. Marys County, and 0.8 mile upstream 

from Chaptioo Bay.

Drainage area. 10.7 sq mi.

Records available. June 1947 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage is 15 ft (from 

topographic map).

Average discharge. 9 years, 10.3 cfs.

Extremes.--Maximum discharge during year, 328 cfs July 21 (gage height, 4.79 ft); minimum, 

0.56 cfs July 4, Sept. 15, 21.

1947-56: Maximum discharge, 7,800 cfs Sept. 10, 1950 (gage height, 8.56 ft), from 

rating curve extended above 280 cfs on basis of slope-area determination of peak flow; 

no flow at times in 1954-55.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Occasional small diversion above station.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

1.2

1.3

1.4

1.5

1.6

0.24

1.2

2.6

5.1

8.9

1.7 

1.9 

2.3 

3.0 

3.4

14

24

46

88

116

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29 

30

31

Ttotal

Mean

Cfsm

In.

Oct.

9.3

5.1

4.2

3.9

3.6

4.2

3.2

7.2

6.6

4.2

*3.4

3.4

3.2

it

16

11

7.7

6.6

5.5

5.1

5.1 

4.5

4.2

4.5

5.1

4.5

4.2

4.2

4.2

5.5

4.5

204.9

6.61

0.618

0.71

Nov.

4.2

4.5

4.5

4.5

*5.9

4.2

4.8

5.8

5.1

6.8

~9.3 24

7.3

6.6

6.2

6.2

5.5

4.8

13

13

7.3 

6.2

6.2

5.8

5.1

5.5

5.1

5.5

4.5

4.5

199.9

6.66

0.622

0.69

Dec.

4.5

5.1

6.6

6.2

5.8

4.8

4.8

4.8

5.8

7.0

4.8

b4.5

b4.2

b4.2

5.1

b3.9

b3.9

b4.8

*6.6

b4.5

b4.2 

b3.6

4.5

5.5

5.1

4.5

b3.6

b3.4

3T6

b4.8

b4.2

148.9

4.80

0.449

0.52

Jan.

b3.6

b5.4

b4!s

4.2

b4.0

b3.9

b3.6

b3.4

16

23

IS

9.7

7.3

6.6

6.2

7.0

6.6

7.0

7.0

6.6 

b5.5

6.6

5.5

b4.2

b4.5

b4.2

b3.9

7.3

8.9

5.5

211.9

6.84

0.639

0.74

Feb.

b5.9

*672

15

20

17

27

32

IS

13

11

12

12

11

9.3

8.9

8.9

10

11

8.5

8.5

7.3 

7.0

b6.6

6.6

9.3

6.6

6.6

6.2

5.1

322.5

11.1

1.04

1.12

Mar.

5.5 676"

6.2

9.3

6.6

6.6

12

*18

13

7.7

10

8.1

10

55

25

25

23

19

19

14

12 

11

11

11

9.7

10

9.3

9.3

*9.3

9.7

8.5

408.4

13.2

1.23

1.42

Apr.

8.1

8.5

9.3

8.9

7.7

14

35" 37

15

13

12

11

10

9.7

11

16

12

10

9.7

8.9

8.9 

8.5

8.1

8.1

8.1

8.9

8.5

8.1

7.7

7.0

345.7

11.5

1.07

1.20

May

*6.2

7.3

10

9.7

8.5

7.0

7.3

7.0

5.8

5.8

5.1

5.1

5.1

3.9

3.2

3.6

3.2

3.9

3.2

5.8

3.4 

3.2

3.4

2.8

2.6

2.6

12

TT

4.5

5.0

12

179.2

5.78

0.540

0.62

June

4.5

94

2T

10

7.0

5.5

*4.8

3.9

3.4

3.6

3.2

2.4

2.3

2.0

1.5

1.5

1.5

1.5

1.7

1.4

2.4 

2.6

1.8

9.1

3.0

1.8

23

3.4

2.3

1.7

227.8

7.59

0.709

0.79

July

1.3

1.1 *.85

.75

20

7.7

3.9

8.5

23

7.0

3.6

2.8

2.1

2.0

1.3

1.3

1.9

29

4.2

31

~TT 110

19

15

20

6.0

4.0

3.5

3.5

3.0

2.5

350.8

11.3

1.06

1.22

Aug.

2.0

2.8

2.8

2.3

3.0

3.2

3.0

2.5

2.2

2.7

~4.0 20

2.7

2.2

*1.8

1.7

1.4

1.2

3.7

6.2

6.2 

4.2

2.6

2.1

1.7

1.5

1.7

1.4

1.2

JO.

rr

96.2

3.10

0.290

0.33

Sept.

0.95

.85

1.1

.85

1.1

.85

4.3

2.4

1.2

1.1

1.1

.95

.85

.75

.75

1.4

*1.2

2.1

1.2

.95

.65 

.65

.75

.95

1.7

1.2

13

T3T

4.2

3.4

64.45

2.15

0.201

0.22

Calendar year 1955: Max 443 Mln 0 Mean 8.48 Cfsm 0.793 In. 10.75

Water year 1955-56: Max 110 Mln 0.65 Mean 7.54 Cfsm 0.705 In. 9.58

Peak discharge (base. 160 cfs).--June 2 (5 p.m.) 247 efs (4.43 ft); July 21 (4 a.m.) 328 cfs 

(4.79 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by lee.

Note. No gage-height record July 23 to Aug. 14; discharge estimated on basis of recorded range 

in stage, weather records, and records for nearby stations.
POTOMAC RIVER BASIN 557

St. Marys River at Great Mills, Md.

Location. Lat 38"14'36", long 76°30'13", on left bank at downstream side of bridge on 

State Highway 471 In Great Mills, St. Marys County, 0.3 mile downstream from Western 

Branch.

Drainage area. 24.0 sq ml.

Records available. June 1946 to September 1956.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 10 ft (from 

topographic map).

Average discharge.--10 years, 21.9 cfs.

Extremes. Maximum discharge during year, 263 cfs June 2 (gage height, 4.22 ft); minimum, 

1.9 cfs probably Sept. 15 (gage height, 1.26 ft).

1946-56; Maximum discharge, 1,230 cfs Aug. 13, 1955 (gage height, 11.77 ft); minimum, 

1.2 cfs Aug. 2, 1954, July 24, Aug. 7, 1955.

Remarks.--Records excellent except those for periods of Ice effect or no gage-height 

record, which are fair.

Rating table, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.2

1.3

1.4

1.5

1.1 

Z.6 

5.1 

9.3

1.6 

1.8 

2.2 

3.5

15

33

86

196

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16 

17

18

19

20

21

22

25

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

7.8

7.8

6.6

5.8

5.4

5.8

5.4

10

15

7.4

5.8

5.4

STB" 5.1

12

tf7.8

7.0

6.2

5.8

5.4

5.1

5.4

5.8

5.4

5.4

5.1

5.4

15

10

235.9

7.61

0.517

0.37

Nov.

7.0

6TT6

7.4

*7.0

6.6

7.0

7.8

7.4

13

53

17

12

9.5

8.5

7.8 

7.4

6.6

17

23

12

9.5

8.3

7.8

7.4

10

9.3

8.5

7.4

6.6

524.2

10.8

0.450

0.50

Dec.

6.2

7.0

8.5

8.5

8.5

7.4

6.6

7.0

11

11

10

8.5

7.4

7.4

7.8

7.4 

6.6

7.4

9.8

*b7.4

b5.8

bS.l

6.6

7.4

7.8

7.4

b5.4

4T87

6^2

b6.2

233.5

7.53

0.314

0.56

Jan.

b4.8

574

5.8

6.2

 6.6

6.2

5.8

b5.4

bS.l

27

5240-

21

15

15

11 

12

11

10

15

12

11

12

10

b7.4

8.3

b7.0

b5.4

11

14

11

385.4

12.4

0.517

0.60

Feb.

*10~ 8.3

46

101

98

79

156

gg

57

26

29

50

26

25

21

17 

19

21

17

17

14

15

12

12

18

14

12

12

10

964.5

55.5

1.59

1.49

Mar.

11 9.8

11

19

14

12

12

*26

29

18

20

18

21

~53 105

82 

88

47

41

29

21

18

17

16

14

14

13

12

*15

13

12

856.8

27.6

1.15

1.33

Apr.

111111

12

9.8

26

99

~5T 125

50

24

21

18

17

18

22

18

16

14

14

15

13

12

14

16

14

14

13

12

11

698.8

25.5

0.971

1.08

May

*9.5

9.8

14

17

20

15

17

24

15

15

10

9.8

8.8

7.4

6.2

6.2 

5.8

6.2

5.8

16

9.8

7.0

7.4

5.8

5.4

5 1 tfT~

16

8.5

18

i!

570.1

11.9

0.496

0.57

June

57

161

127

56

16

11

*8.8

6.6

5.8

5.8

5.8

4.8

4.2

5.8

5.5

5.5 

5.5

5.5

5.5

3.3

4.2

4.5

3.5

7.4

4.2

3.8

6.8

8.5

5.1

5.8

505.2

16.8

0.700

0.78

July

3.5

3.5

*2.8

475

4.2

6.0

7.0

41

75

T7

7.4

4.8

4.0

5.5

5.1

5.1 

4.0

22

7.0

8.8

55

9.5

7.0

20

30

10

5.8

4.8

4.8

4.5

4.0

365.2

11.8

0.492

0.57

Aug.

3.5

4.5

4.5

4.0

4.8

5.4

4.8

4.0

3.8

4.2

36

4!2

4.0

 3.3

2.8 

2.6

2.4

2.6

4.0

6.2

5.8

4.2

3.5

3.0

2.8

3.0

2.6

2.4

2.3

2^2

150.8

4.86

0.202

0.23

Sept.

2.1

2.2

2.6

2.1

2.6

2.1

20

4.0

2.5

2.3

2.2

2.3

2.2

2.1

2.0

2.8 

2.4

*5.8

4.2

3.5

2.8

2.8

3.2

3.7

6.0

5.0

50

8.0

4.8

188.3

6.28

0.262

0.29

Calendar year 1955 : Max 934 Mln 1.3 Mean 16.6 cfsm 0.692 In. 9.41

Water year 1955-56 : Max 161 Mln 2.0 Mean 14.4 Cfsm 0.600 In. 8.17

Peak discharge (base. 400 cfa).--No peak above base 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. Ho gage-height record Aug 20, 21, Aug 24 to Sept. 18, Sept. 20-30j discharge 

basis of recorded range in stage, weather records, and records for Chaptlco Creek at

estimated on 

Chaptlco.
558 RAPPAHANNOCK RIVER BASIN

Rappahannock River near Warrenton, Va.

Location. Lat 38°41'05", long 77°54 I 15", on left bank 50 ft downstream from bridge on 

U. S. Highway 211, 0.9 mile downstream from Carter Run, 6.2 miles southwest of Warrenton, Pauquler County, 15 miles upstream from Hazel River, and at mile 53.0.

Drainage area. 192 sq mi.

Records available. August 1942 to September 1956.

Gage. Water-stage recorder. Datum of gage is 312.57 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943. Prior to Oct. 8, 1942, water-stage 

recorder at present site and datum. Oct. 8, 1942, to Dec. 17, 1944, wire-weight gage 

50 ft upstream at present datum.

Average discharge. 14 years, 196 cfs.

Extremes. Maximum discharge during year, 6,050 cfs July 21 (gage height, 13.05 ft); minimum, 13 cfs July 3 (gage height, 1.67 ft).

1942-56: Maximum discharge, 32,000 cfs Oct. 15, 1942 (gage height, 23.5 ft, from 

floodmark), from rating curve extended above 24,000 cfs by logarithmic plotting; minimum daily, 0.7 cfs Oct. 4,5, 1954.

Remarks. Records excellent except those for periods of ice effect, which are good.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

1.6 

1.8 

2.0 

2.2 

2.4

12

19

30

48

75

2.7 

3.0 

4.0 

6.0 

9.0

140

215

510

1,400

2,960

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

77

74

69

64

64

70

75

172

140

89

74

70

66

147

208

122

99

91

87

79

*75

72

68

69

68

68

68

66

66 

70

74

2,701

87.1

0.454

0.52

Nov.

72

68

68

72

64

62

64

74

70

70

140

T6T

81

75

72

74

*77

66

72

89

93

99

93

85

75

74

69

69

62

2,318

77.3

0.403

0.45

Dec.

66

66

69

70

7_2

64

59

59

62

58

54

58

54

54

*59

48

55

55

58

48

53

46

53

58

64

66

49

43

55 

53

47

1,770

57.1

0.297

0.34

Jan.

47

46

53

53

56

50

52

43

56

152

b!90

bllO

b80

b70

b70

b70

b65

*b70

b70

b75

b75

b70

b60

61

64

50

48

81 

172

b210

2,417

78.0

0.406

0.47

Feb.

b!40

182

333

297

309

402

660

390

312

261

240

285

230

208

205

*190

182

195

185

172

158

140

135

128

162

188

148

140

122

6,699

231

1.20

1.29

Mar.

118

1EO

118

115

111

109

TT8

200

205

158

145

138

155

801

6TO

510

545

420

360

345

*306

279

261

243

220

218

205

195

200

182

7,988

258

1.34

1.54

Apr.

170

165

168

172

152

148

420

700

435

345

303

270

243

225

220

249

220

195

190

175

165

160

158

148

*148

140

135

130

128 

122

6,599

220

1.15

1.28

May

111

113

138

135

111

107

107

105

95

93

99

99

97

87

75

75

72

91

81

77

72

68

*66

62

55

54

BF

103

72

59

60

2,697

87.0

0.453

0.52

June

56

68

113

56

50

46

42

40

40

40

34

30

28

26

27

27

26

32

31

30

38

*38

29

24

20

18

17

15

1,125

37.5

0.195

0.22

July

14

14

13

TB

562

282

118

60

103

115

58

45

37

35

30

27

27

 36

34

1,540

2.960

545

1,700

920

528

351

291

232

192 

175

145

11,265

363

1.89

2.18

Aug.

130

330

190

142

228

435

339

249

185

150

125

109

101

107

105

89

77

70

66

62

91

*91

69

64

56

52

52

49

46 

43

42

3,944

127

0.661

0.76

Sept.

42

41

38

35

3_4

115

79

54

45

41

41

47

48

43

43

58

*62

75

47

47

42

36

37

72

58

42

244

435 ISO" 

115

2,296

76.5

0.398

0.44

Calendar year 1955: Max 8,280 Mln 13 Mean 173 Cfsm 0.901 In. 12.26

Water year 1955-56: Max 2,960 Mln 13 Mean 142 Cfsm 0.740 In. 10.01

Peak discharge (base, 1,800 cfs). --July 21 (5 a.m.) 6.050 cfs (13.05 ft): July 23 (6:30 p.m.)

2,350 cfs (7.87 ft).

Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
RAPPAHANNOCK RIVER BASIN 559

Rush River at Washington, Va.

Location. Lat 38°43', long 78°09', on left bank 20 ft upstream from bridge on U. S. Highways 211 and 522 and half a mile east of Washington, Rappahannook County.

Drainage area.--15.2 sq mi.

Records available. August 1953 to September 1956.

Gage. Water-stage recorder. Datum of gage is 597.97 ft above mean sea level, datum of 

T929, Culpeper supplementary adjustment of 1943.

Extremes. Maximum discharge during year. 525 cfs July 20 (gage height, 4.05 ft); minimum, 

 OTW~cfs July 3 (gage height, 0.96 ft).

1953-56: Maximum discharge, 2,500 cfs Aug. 18, 1955 (gage height, 8.14 ft); no flow 

for many days.

Remarks.--Records fair except those for periods of ice effect, doubtful, or no gage-height 

record, which are poor.

Rating table, water year 1955-56, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.0 

1.05

1.1

1.2

1.3

1.4

3.3

6.0

1.6 

1.8 

2.0 

2.3 

2.8

14

28

47

92

204

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

l

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

3.0

2.8

2.4

2.4

2.4

2.4

2.6

4.8

37ff

2.6

2.1

1.8

1.7

476

4.3

2.8

2.4

2.2

2.2

2.1

2.0

1.8

2.0

2.0

2.2

2.4

2.1

«2.1

2.2

3.0

3.0

80.2

2.59

0.170

0.20

Nov.

2.8

2.8

2.8

2.6

2.6

2.6

3.0

3.6

3.3

3.8

5.4

475

3.0

3.0

2.8

3.0

2.6

2.4

373

3.6

*4.0

4.6

4.3

4.0

3.6

3.3

3.0

2.8

2.6

2.6

97.8

3.26

0.214

0.24

Dec.

2.4

2.8

3.8

3.6

3.3

3.0

2.8

2.8

3.0

2.8

2.4

2.6

2.4

2.2

«2.4

bl.8

b2.2

2.2

b2.0

bl.7

2.2

2.1

2.4

2.6

3.0

2.6

2.2

2.2

2.2

b2.1

b2.0

77.8

2.51

0.165

0.19

Jan.

b2.4

b2.4

2.6

b2.6

2.2

b2.4

b2.6

2.4

b4.0

5.1

12

9.4

6.3

3.9

4.6

4.3

3.8

b4.0

4.6

*4.0

b3.6

b3.3

3.6

b3.0

b3.3

3.8

b2.6

b2.B

4.8

12

14

142.4

4.59

0.302

0.35

Feb.

12

14

22

21

20

32

37

27

*32

19

21

22

19

17

17

14

14

15

14

13

12

11

9.8

9.4

11

11

9.4

9.0

8.2 

492.8

17.0

1.12

1.21

Mar.

7.4

7.0

6.6

6.3

6.0

6.0

6.3

9.0

8.6

7.4

8.6

11

11

5250"

*46

39

34

29

25

23

21

19

18

17

16

14

14

15

14

12

559.2

18.0

1.18

1.36

Apr.

12

11

10

9.8

8.6

13

48

a50 a3B"

a27

a23

a21

al9

a!8

19

18

16

15

14

*12

11

10

10

9.8

9.4

8.6

8.6

7.8

7.8

7.4

489.8

16.3

1.07

1.19

May

6.3

7.8

8.1

7.4

6.3

6.0

6.0

5.7

5.1

5.4

5.4

5.7

4.8

4.3

3.8

4.0

4.0

*5.4

4.6

4.3

3.8

3.6

3.3

3.0

2.6

2.4

4.0

4.8

3.0

2.6

2.2

145.8

4.70

0.309

0.36

June

2.1

4.0

4.8

*370

2.4

2.1

2.0

1.8

1.6

1.8

1.4

1.2

1.0

.94

.78

1.3

1.0

1.1

2.0

1.6

1.7

1.6

1.1

.86

.65

.53

.47

.38

.34

.26

45.81

1.53

0.101

0.11

July

0.26

.20

72?

1.1

2.2

2.1

1.4

1.0

1.7

1.8

1.1

.86

*.71

.65

.53

.34

5.0

a2.4

a2.5

194

a75

a70

a80

a47

a40

a37

a48

a44

a40

a32

a26

759.14

24.5

1.61

1.86

Aug.

a22

a24

a20

a!7

a30

a46

a46

a32

al2

*a6.3

4.8

4.0

4.0

5.4

4.0

3.3

2.8

2.4

2.0

2.1

3.3

2.6

2.2

2.0

1.6

1.6

1.6

1.4

1.3

T73

1.4

310.4

10.0

0.658

0.76

Sept.

1.6

1.3

1.0

i4

27S

2.0

1.7

1.4

1.1

1.0

1.1

1.4

 1.1

1.0

1.6

2.0

1.4

1.3

1.1

1.7

1.3

1.3

1.3

1.8

1.4

1.3

19

all

a7.4

a4.3

81.5

2.72

0.179

0.20

Calendar year 1955: Max 1,140 Min 0.12 Mean 16.6 Cfsm 1.09 In. 14.81

Water year 1955-56: Max 194 Mln 0.20 Mean 8.97 Cfsm 0.590 In. 8.03

Peak discharge (base. 550 cfs). July 20 (7 a.m.) 525 cfs (4.05 ft); July 22 (10 p.m.) 388 cfs 

(3.53 ft).

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on basis of reconstructed gage-height 

graph and records for nearby station.

b Stage-discharge relation affected by Ice.
560 RAPPAHANNOCK RIVER BASIN

Thornton River near Laurel Mills, Va.

Location. Lat 38°38' , long 78°04' , near left bank on downstream side of bridge on State 

Highway 729, 2 miles southeast of Laurel Mills, Rappahannock County, 3 miles downstream 

from Battle Run, and 4-| miles upstream from mouth.

Drainage area. 142 sq mi.

Records available. October 1943 to September 1956 (discontinued).

Gage. Wire-weight gage read once daily. Crest-stage indicator since November 1950. 

Datum of gage is 342.43 ft above mean sea level, datum of 1929.

Average discharge. 13 years, 159 cfs.

Extremes.--Maximum discharge during year, 4,500 cfs July 20 (gage height, 10.30 ft), from 

rating curve extended above 2,600 cfs on basis of slope-area and contracted-opening 

determinations at gage height 21.5 ft; minimum daily, 9.0 cfs July 3.

1943-56: Maximum discharge, 26,500 cfs Aug. 18, 1955 (gage height, 21.50 ft), from 

rating curve extended above 2,600 cfs on basis of slope-area and contracted-opening 

determinations of peak flow; minimum, 1.0 cfs Oct. 2, 1954.

Flood of Oct. 15, 1942, reached a stage of 26.8 ft, from floodmark (discharge, about 

40,000 cfs).

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

1001 

1081

1141

Water 

year

1944 

1947 

1949

Date

Sept. 18, 

Aug. 18, 

Apr. 13,

1944 

1947 

1949

Discharge 

(cfs)

2,110 

2,250 

6,240

Gage height 

(feet)*

8.0 

8.2 

12.9

* Prom graph based on gage readings 

Remarks.--Records fair.

Revisions (water years). WSP 1141: 1948(M). Revised figures of discharge, in cubic feet 

per second, for high-water periods in water years 1945-48, superseding those published 

in WSP 1031, 1051, 1081, and 1111, are published herewith:

Sept.18, 1945........... 2,770

May 28, 1946........... 974

Aug. 18, 1947........... 1,240

Nov. 3, 1947........... 1,340

Month

Calendar year 1946.......

August 1947................

Water year 1946-47. ......

November 1947. .............

Water year 1947-48. . .....

Cfs-days

49,960

48,011

34,689

10,340

71,292

Maximum

2,770

974

1,000

1,240

1,520

2,050

Minimum

24

12

19

62

32

Mean

137

132

95.0

345

195

Per square

mile

.965

.930

.669

2.43

1.37

Runoff In 

Inches

13.08

14.33

12.59

1.06

9.10

2.71 

11.66

18.68
RAPPAHANNOCK RIVER BASIN 

Thornton River near Laurel Mills, Va. Continued

Rating table, water year 1955-56 (gage height, In feet,

and discharge, In cubic feet per second) 

(Stage-discharge relation affected by Ice Dec. 28)

561

1.1 

1.3 

1.5 1.8

9.0

18

35

75

2.5 

4.0 

5.5 

7.0

243

67O

1,250

2,000

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

54

53

46 

45

46

47

50

84

77

56

49

46

44

72

99

63

56

54

53

50

*46

45

44

46

44

43

42

44

43

46

47

1,634

52.7

0.371

0.43

Nov.

49

46

46 

47

46

44

44

54

50

47

97

69

54

53

49

50

*46

39

49

59

62

60

54

53

47

47

45

46

44

11

1,533

51.1

0.360

0.40

Dec.

35

43

45 

49

49

44

45

40

42

38

35

33

35

36

44

34

37

44

38

34

36

*30

32

34

39

46

40

35

33

35 

31

1,191

38.4

0.270

0.31

Jan.

25

26

35 

32

33

29

25

25

23

25

62

72

64

46

30

49

44

*31

46

47

44

44

45

37

52

38

34

27

46

77 

151

1,344

43.4

0.306

0.35

Feb.

57

a?

177 

177

203

151

433

315

256

190

148

297

177

151

136

*151

131

126

108

112

104

93

88

74

89

108

80

79

70

4,358

150

1.06

1.14

Mar.

68

63

68 

64

60

56

60

88

108

84

77

82

84

177

520

378

405

324

310

297

256

*243

203

177

136

131

141

131

126

136 

112

5,165

167

1.18

1.36

Apr.

108

95

101 

97

88

79

351

378" 550

324

297

284

216

177

177

190

146

141

131

124

108

97

95

88

88

*86

84

86

84

93

4,963

165

1.16

1.29

May

75

77

1!79

77

69

79

69

62

69

70

68

59

53

57

50

63

54

52

50

46

*47

44

42

38

43

70

52

42

38

1,880

60.6

0.427

0.49

June

36

42

84 

62

39

36

32

29

25

27

28

27

20

19

18

27

26

21

30

31

28

*31

26

19

18

20

17

19

11

9.4

857.4

28.6

0.201

0.22

July

12

11

6101"

230

138

68

36

21

29

23

30

18

14

17

12

11

156

*26

1.600

995

532

1,490

720

490

338

270

216

138

126

95

8,481.0

274

1.93

2.22

Aug.

77

74

80 

63

66

243

351

203

126

93

70

62

53

52

68

54

40

37

34

32

34

45

*36

33

27

32

26

24

24

23

.22

2,204

71.1

0.501

0.58

Sept.

26

22

22 

18

21

52

27

24

24

23

20

44

32

23

19

35

*30

26

24

25

27

19

21

42

30

33

74

610

136

86

1,615

53.8

0.379

0.42

Calendar year 1955: Max 17,200 Mln 5.0 Mean 172 Cfsm 1.21 In. 16.43

Water year 1955-56: Max 1,600 Mln 9.0 Mean 96.2 Cfsm 0.677 In. 9.21

Peak _ __ 

3,300 cfs (9.00 ft).

Discharge measurement made on this day.
562 RAPPAHANNOCK RIVER BASIN

Hazel River at Rixeyville, Va.

Location.--Lat 38°35'30", long 77°57'55", on right bank at downstream side of bridge on 

State Highway 229, 0.4 mile upstream from Waterford Run, 1.1 miles northeast of Rixeyville, Culpeper County, 2.8 miles downstream from Thornton River, and 9.1 miles upstream from mouth.

Drainage area. 286 sq mi.

Records available. August 1942 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 288.30 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Average discharge. 14 years, 338 cfs.

Extremes.--Maximum discharge during year, 4.790 cfs July 21 (gage height, 12.95 ft); minimum, 30 cfs July 3 (gage height, 2.28 ft).

1942-56: Maximum discharge, 60,000 cfs Oct. 15, 1942 (gage height, 31.8 ft), from 

rating curve extended above 27,000 cfs by logarithmic plotting; minimum, 1.7 cfs Oct. 3, 

1954; minimum gage height, 1.89 ft Oct. 2, 3, 1954.

Flood of Apr. 26, 1937, reached a stage of 28.4 ft, from floodmarks, from information by local residents (discharge, 43,500 cfs).

Remarks.--Records good. Prior to September 1948, moderate diurnal fluctuation caused by 

small power dam above station.

Revisions (water years). WSP 971: 1942.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, In

cubic feet per second)

(Shifting-control method used Aug. 24 to Sept. 6; stage-discharge 

relablon affected by Ice Dec. 12, 13, 16, 27-30)

Oct. 1 to Nov. 11 Nov. 12 to Sept. 30

2.9 

3.1 

3.5

112

200

2.2 

2.5 

3.0 

3.5

1O6 

225

4.0 

5.0 

7.0

9.0

380

750

1,540

2,470

Discharge, In cubic feet per second, water year October 19"55 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

116

114

108

104

102

106

110

175

171

123

110

102

99

152

200

138

118

112

110

104

*101

99

93

95

92

90

92

90

92

97

101

3,516

113

0.395

0.46

Nov.

97

93

97

99

93

92

93

106

106

101

153

155

T23

116

112

112

*106

96

104

125

128

125

125

119

112

106

104

104

100

93

3,295

110

0.385

0.43

Dec.

96

95

101

106

104

98

92

92

92

90

89

93

96

101

*93

88

96

96

90

eo

88

84

89

90

95

100

90

80

80

90

2,856

92.1

0.322

0.37

Jan.

83

85

89

84

88

84

85

76

84

96

114

145

119

98

88

89

92

88

*88

93

104

98

93

90

103

95

83

80

98

150

202

3,064

98.8

0.345

0.40

Feb.

155

160

285

356

384

468

883

542

412

342

312

426

336

297

279

261

246

261

246

222

205

188

180

170

198

205

178

168

152

8,517

294

1.03

1.11

Mar.

145

145

140

135

128

128

135

212

249

192

178

175

190

849

980

769

807

617

523

468

408

*366

336

315

285

270

252

237

234

246

218

10, 332

333

1.16

1.34

Apr.

200

195

200

200

185

195

674

980

674

542

468

415

366

330

324

366

312

279

264

243

228

220

212

205

202

*192

180

175

165

T65

9,356

312

1.09

1.22

May

150

150

188

L82

152

140

142

150

130

121

125

125

125

114

101

1OO

95

106

108

93

89

88

*86

82

77

76

82

110

95

80

76

3,538

114

0.399

0.46

June

71

78

~98 128

82

75

69

66

62

63

62

58

54

52

49

58

62

71

66

68

63

*66

61

53

49

45

41

39

36

34

1,879

62.6

0.219

0.24

July

34

32

31

124

172

195

192

76

60

68

54

46

42

40

38

35

57

169

*62

1,180

1,880

921

2.020

1,320

731

450

352

276

200

175

142

11,174

360

1.26

1.45

Aug.

121

135

142

114

123

336

~ZBl 426

180

al50

a!30

a!20

allO

allO

allO

alOO

a90

a85

a80

a80

aloo

allO

*a90

78

74

70

70

69

67

66

64

3,864

125

0.437

0.50

Sept.

62

61

60

58

57

86

69

66

56

52

52

76

72

58

55

68

*63

59

57

55

53

52

52

62

63

60

870

1.050

373

220

4,097

137

0.479

0.53

Calendar year 1955: Max 23,800 Mln 18 Mean 311 Cfsm 1.09 In. 14.77

Water year 1955-56: Max 2,020 Mln 31 Mean 179 Cfsm 0.626 In. 8.51

Peak discharge (base. 2.500 cfs). July 21 (1:30 a.m.) 4.790 cfs (12.95 ft); July 23 (8 p.m.) 

4,120 cfs (11.97 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

Rappahannock River near Warrenton.
RAPPAHANNOCK RIVER BASIN 563

Rappahannock River at Remington, Va.

Location. Lat 38°31'50", long 77°48'50", on left bank 80 ft upstream from bridge on U. S. 

Highway 29 at Remington, Fauquier County, 0.3 mile upstream from Tinpot Run, 0.4 mile 

downstream from Ruffans Run, 2.5 miles downstream from Hazel River, and at mile 35.2.

Drainage area. 616 sq mi.

.Records available. October 1942 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 252.53 ft above mean sea level, datum of 

1989, Culpeper supplementary adjustment of 1943. Prior to Nov. 21, 1951, wire-weight 

gage at bridge 80 ft downstream at same datum.

Average discharge.--14 years, 671 cfs.

Extremes.--Maximum discharge during year, 9.400 cfs July 21 (gage height, 14.14 ft); minimum, 32 cfs July 3 (gage height, 2.88 ft).

1942-56: Maximum discharge, 45,100 cfs Aug. 18, 1955 (gage height, 23.52 ft); minimum, 5.0 cfs Oct. 5, 1954 (gage height, 2.60 ft).

Maximum stage known, 30.0 ft Oct. 16, 1942, from floodmarks (discharge, about 90,000 

cfs by comparison with flow at former gaging station at Kellys Ford, 4-j miles downstream) .

Remarks. Records good. Records of chemical analyses, water temperatures, and sediment 

loads for the water year 1956 are given in WSP 1450,

Revisions (water years).--WSP 1171: 1944.

Rabing table, water year 1955-56 (gage height, In feet, and discharge,

in cubic feet" per second)

(Shifting-control method used Apr. 18 to June 5; stage-discharge 

relation affected by ice Jan. 14, 15, 23)

2.9

3.0 

3.2 

3.5

55

100

205

4.0

6.0

10.0

13.0

475

1,850

5,000

8,000

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

236

241

228

214

205

214

223

376

463

270

228

205

193

265

527

328

250

228

218

205

*193

189

177

173

T73

177

177

177

177

189

193

7,312

236

0.383

0.44

Nov.

201

189

189

197

189

181

181

201

210

201

295

355

255

232

218

*214

218

197

201

241

255

260

255

241

223

210

205

201

197

181

6,593

220

0.357

0.40

Dec.

175

201

197

214

218

205

185

177

185

181

155

145

148

173

185

121

165

169

173

137

*158

140

151

162

177

177

137

109

148

158

137

5,163

167

0.271

0.31

Jan.

130

137

148

148

154

134

134

115

IT5

158

197

344

285

195

185

185

181

165

*169

201

205

162

155

137

118

173

127

130

193

311

5JU

5,705

184

0.299

0.34

Feb.

427

361

690

832

898

1,060

2.500

1,260

930

768

676

832

696

598

*566

540

494

527

520

463

427

391

367

350

379

451

391

361

553

18,888

651

1.06

1.14

Mar.

306

506

506

290

285

280

285

469

685

494

421

409

427

1,830

2.600

1,590

1,810

1,340

1,160

1,060

*898

800

742

696

631

586

560

520

508

540

482

23,314

752

1.22

1.41

Apr.

433

403

403

421

379

373

1,160

2.080

1,340

1,030

865

780

676

612

592

728

624

514

482

439

409

385

367

350

344

338

333

322

311

3TT

17,804

593

0.963

1.07

May

290

280

333

355

306

280

275

275

255

236

246

250

250

232

205

197

193

201

228

197

185

177

*173

165

148

140

154

210

223

165

151

6,975

225

0.365

0.42

June

151

158

255

232

173

151

137

127

118

112

112

109

95

*85

78

78

103

106

109

115

118

121

127

103

85

71

61

55

45 XQ

J*?.

3,429

114

0.185

0.21

July

39

38

43

164

930

638

494

228

154

232

158

115

95

85

80

71

165

*473

158

1,320

7.890

2,000

4,240

4,360

1,740

1,090

800

696

527

451

373

29,8.47

963

1.56

1.80

Aug.

322

566

514

355

409

1.120

1,030

735

527

409

333

285

250

250

270

241

210

193

173

165

205

*241

197

169

151

134

124

115

109 

100

95

9,997

322

0.523

0.60

Sept.

88

85

80

75

li

164

205

173

137

109

92

90

109

106

110

140

*155

169

137

121

118

106

95

124

173

130

1,090

2.220

930

572

7,974

266

0.432

0.48

Calendar year 1955: Max 26,800 Min 28 Mean 616 Cfsm 1.00 In. 13.56

Water year 1955-56: Max 7,890 Min 38 Mean 391 Cfsm 0.635 In. 8.62

Peak discharge (base. 6.000 cfs).--July 21 (10:30 a.m.) 9,400 cfs (14.14 ft); July 24 (2 a.m.) 

7,560 cfs (12.63 ft).

* Discharge measurement made on this day.
564 RAPPAHANNOCK RIVER BASIN

Mountain Run near Culpeper, Va.

Location. Lat 38"28'SO", long 78"03'10", on left bank 30 ft upstream from highway bridge, 

3 miles west of Culpeper, Culpeper County, and 14j miles upstream from Jonas Run.

Drainage area. 14.7 sq ml.

Records available. September 1949 to September 1956.

Gage.--Water-stage recorder. Altitude of gage Is 385 ft (by barometer).

Average discharge. 7 years, 15.3 cfs.

Extremes . Maximum discharge during year, 470 cfs July 21 (gage height, 6.06 ft); minimum, 

1.6 cfs July 2, 3 (gage height, 1.32 ft).

1949-56: Maximum discharge, 5,470 cfs Aug. 18, 1955 (gage height, 11.00 ft), from 

rating curve extended above 910 cfs on basis of slope-area determination of peak flow; 

maximum gage height, 11.20 ft Dec. 4, 1950; minimum discharge, 0.09 cfs Sept. 30, 

Oct. 1, 1954.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Revisions (water years). WSP 1332: 1950-51.

Rating table, water year 1955-56, except periods of ice effect (gage

height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Jan. 11 to Feb. 6)

1.3

1.4 

1.6 

1.8

1.6 

1.8 

4.1 

8.5

2.0 

2.5 

3.0 

4.0

67

162

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

a4

a4

a4

a4

a3.5

a3.5

a4.5

alO

a8

a6

a4

a3.2

a3.2

a5

alS

a7

a6

a5.5

a5.5

3.6

»a5

4.1

3.9

4.1

4.1

a4

a4

a4.5

a4.5

a5

a5

160.1

5.16

0.351

0.40

Nov.

5.2

5.2

5.6

5.6

5.2

5.2

6.2

6.7

5.6

6.9

Ii

^.7

6.0

6.0

5.8

 6.0

5.6

5.2

6.9

8.0

8.0

7.1

6.9

6.4

5.8

6.0

5.8

6.0

5.4

5.4

188.4

6.28

0.427

0.48

Dec.

5.2

6.0

6.4

6.9

67f

6.2

6.0

6.2

6.2

5.6

5.4

b5.2

b5.2

b5.2

»5.S

b5.4

b5.2

5.6

5.8

b5.2

5.2

b5.2

5.2

5.8

6.4

5.8

5.4

b4.1

5.2

5.8

b4.9

174.4

5.63

0.383

0.44

Jan.

b4.7

b4.7

5.6

5.6

5.4

5.2

b5.2

b4.3

b5.2

6.4

7.6

5.8

4.9

4.3

4.1

4.3

4.7

 4.5

4.3

4.7

b3.6

b4.1

4.7

4.1

b3.2

b3.5

b3.2

b3.2

7.8

Q n

TT! o , y

155.0

5.00

0.340

0.39

Feb.

"977 5.6

15

20

17

62

40

21

16

13

15

15

12

11

 10

9.5

10

12

9.8

9.5

8.8

8.3

8.0

8.0

bll

11

10

10

9.8

418.0

14.4

0.980

1.06

Mar.

9.8

10

9.5

9.0

8.5

9.0

10

16

12

10

10

11

14

8430"

37

28

21

18

16

13

 12

12

11

10

10

9.8

9.2

9.8

9.5

487.9

15.7

1.07

1.23

Apr.

8.5

8.5

8.5

8.5

7.6

12

36

23

14

12

11

10

9.5

9.0

10

17

11

9.8

9.0

8.8

8.3

8.3

7.8

7.6

7.6

*7.6

7.4

7.1

6.7

_ii.

318.3

10.6

0.721

0.80

May

6.0

6.4

7.6

77T

6.0

6.0

6.0

5.6

5.2

5.6

6.0

5.8

5.2

4.5

4.3

4.5

4.3

4.7

4.3

3.9

3.9

3.9

3.9

 3.4

3.2

3.2

4.1

4.5

3.2

3.2

3.0

148.5

4.79

0.326

0.38

June

3.0

6.9

5/g

3.9

3.6

3.2

3.1

2.7

2.6

3.0

2.5

2.1

2.1

2.0

1.9

1.9

2.4

3.2

3.6

2.8

 3.4

3.2

2.5

2.1

2.0

1.8

2.0

1.8

L^L

1.7

84.3

2.81

0.191

0.21

July

1.7

1. 7

6.5

9.8

6.9

37

7.8

3.9

6.0

4.1

2.7

2.4

2.4

2.3

2.0

1.9

13

5.4

*3.0

84

89

76

28

21

13

9.2

7.6

6.2

5.6

5.4

4.7

470.2

15.2

1.03

1.19

Aug.

4.5

9.0

5.8

4.7

13

26

16

9.2

6.9

5.8

4.9

4.5

4.5

5.4

4.5

3.9

3.7

3.4

3.2

4.5

8.3

4.9

*4.1

3.6

3.2

3.2

3.2

3.1

2.7

2.7

~ 

185.0

5.97

0.406

0.47

Sept.

2.6

2.4

2.3

2.8

4.9

3.0

2.4

2.3

3.4

8.9

3.2

2.6

6.0

4.1

2.8

*3.2

2.6

2.4

2.2

2.3

2.4

2.5

2.4

2.5

154

30

13

9.2

286.9

9.56

0.650

0.73

Calendar year 1955: Max 1,150 Mln 1.5 Mean 14.2 Cfsm 0.966 In. 13.07

Water year 1955-56: Max 154 Min 1.7 Mean 8.41 Cfsm 0.572 In. 7.78

Peak discharge (base, 300 cfs). J

(6.06 ft); Sept. 27 (3 p.m.) 440 cfs

illy 20 (6 p.m.) 380 cfs (5.60 ft); July 21 (10:30 p.m.) 470 cfs 

(5.89 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

nearby stations.

b Stage-discharge relation affected by ice.
RAPPAHANNOCK RIVER BASIN 565

Rapldan River near Ruckersvllle, Va.

Location. Lat 38°16'50", long 78°20'25", on left bank at upstream side of bridge on U. S. 

Highway 29, 0.2 mile downstream from Elk Run, 1.7 miles upstream from White Run, 

2.1 miles downstream from South River, 3.6 miles northeast of Ruckersvllle, Greene 

County, and at mile 63.5.

Drainage area. Ill sq ml.

Records available. September 1942 to September 1956.

.--Water-stage recorder. Datum of gage is 439.44 ft above mean sea level, datum of 

929, Culpeper supplementary adjustment of 1943.

Average discharge. 14 years, 159 cfs.

Extremes.--Maximum discharge during year, 1,450 cfs July 21 (gage height, 5.16 ft); minlTnum, 8.5 cfs Dec. 8; minimum gage height, 0.44 ft Sept. 5.

1942-56: Maximum discharge, 30,700 cfs Oct. 15, 1942 (gage height, 20.8 ft, from 

floodmark In gage house), from rating curve extended above 12,000 cfs on basis of slopearea determination at gage height 17.78 ft; minimum, 3.8 cfs Sept. 4, 5, Oct. 1-5, 1953; 

minimum gage height, 0.34 ft during period July 26 to Aug. 2, 1944, from recorded range 

in stage.

Remarks. Records good. Occasional small diversions for Irrigation above station. 

Revisions (water years). WSP 1171: 1944-45(M). WSP 1382: 1943(M).

Rating tables, water year 1955-56 (gage height. In feet, and discharge,

in cubic feet per second)

(Shifting-control method used Feb. 6 to Apr. 7; stage-discharge 

relation affected by Ice Dec. 21, 28, Jan. 2, 9)

Oct. 1 to June 16 June 17 to Sept. 30

0.6 16

.8 30

1.0 49

1.2 72

1.5 

2.0 

3.O

120

240

545

0.4 

.6

1.0 

1.3

1.6 142

2.O 24O

3.0 545

4.0 920

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Ittal

Mean

Cfsm

In.

Oct.

45

43

41

40

39

39

39

53

52

43

39

36

34

65

58

45

41

39

39

37

36

*34

34

34

.33

34

34

34

36

39 

39

1,254

40.5

0.365

0.42

Nov.

37

36

37

38

37

37

41

46

41

41

61

47

43

40

39

39

37

*35

43

49

45

44

44

44

42

39

39

39

38

36

1,234

41.1

0.370

0.41

Dec.

34

36

39

39

39

37

36

35

35

34

33

31

31

33

34

*33

31

34

34

28

30

29

31

30

34

34

30

22

2T

30

29

1,012

32.6

0.294

0.34

Jan.

28

29

29

29

28

28

28

24

25

29

37

38

34

28

27

28

28

28

28

*30

33

34

50

52

48

52

48

46

62

88

104

1,200

38.7

0.349

0.40

Feb.

80

94

127

202

229

368

465

3T5

249

199

189

218

179

158

144

128

*122

126

115

106

96

88

82

79

89

83

76

71

.66

4,543

157

1.41

1.52

Mar.

64

61

60

58

53

53

57

83

91

76

72

71

80

416

420

375

348

288

240

199

172

153

*138

13O

115

107

99

91

91

88 

SO

4,429

143

1.29

1.49

Apr.

73

70

70

67

61

69

164

191

160

147

136

130

118

111

124

189

153

138

126

116

107

104

99

96

92

89

*88

86

85 

80

3,339

111

1.00

1.12

May

76

80

92

85

83

66

61

58

53

53

58

57

53

49

47

46

42

47

44

42

4O

39

39

*36

33

32

36

43

36

35 

32

1,593

51.4

0.463

0.53

June

27

50

66

43

36

32

SO

28

27

28

25

21

21

18

15

24

57

70

53

39

42

*66

46

35

30

26

24

22

21 

20

1,045

34.8

0.314

0.35

July

19

18

17

58

82

134

73

39

34

28

26

22

20

2O

18

17

16

18

20

*343

439

JTS

175

124

111

84

67

58

51 

49

42

2,540

81.9

0.738

0.85

Aug.

40

67

49

40

40

62

71

57

46

40

36

32

32

34

36

30

27

25

23

22

30

29

25

*22

20

20

54

30

20 

18

Iff

1,095

35.3

0.318

0.37

Sept.

18

18

16

15

18

34

35

23

20

18

86

46

26

20

20

27

25

*27

24

21

19

18

18

23

22

20

812 555"

297 

193

2,557

85.2

0.768

0.86

Calendar year 1955: Max 10,600 Mln 16 Mean 159 Cfsm 1.43 In. 19.44

Water year 1955-56: Max 812 Mln 15 Mean 7O.6 Cfsm O.636 In. 8.66

Peak discharge (base. 1.400 cfs). July 21 (1O p.m.) 1,450 cfs (5.16 ft). 

* Discharge measurement made on this day.

505690 O - 59 - 37
566 RAPPAHANNOCK RIVER BASIN

Robertson River near Locust Dale, Va.

Location. Lat 38°20', long 78°06', on right bank 100 ft upstream from brLdge on State 

Highway 614, 1 mile upstream from Great Run, 1-| miles east of Locust Dale, Madison 

County, 1.7 miles upstream from mouth, and 3 miles downstream from Crooked Run.

Drainage area. 180 sq mi.

Records available.--July 1943 to September 1956.

Gage . Water-stage recorder. Datum of gage is 283.70 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Average discharge. 13 years, 217 cfs.

Extremes. Maximum discharge during year, 2,010 cfs July 22 (gage height, 7.40 ft); minimum, 9.5 cfs July 2 (gage height, 0.75 ft); minimum dally, 19 cfs July 2.

1943-56: Maximum discharge, 18,600 cfs Aug. 18, 1955 (gage height, 19.49 ft); minimum, 1.2 cfs Sept. 7, 13, 1954; minimum daily, 1.8 cfs Sept. 13, 27, 1954.

Maximum stage known, 23.9 ft Oct. 15, 1942, from floodmarks (discharge, about 

44,000 cfs).

Remarks. Records good except those for periods of ice effect, which are fair, 

urnal fluctuation at low flow caused by powerplant 9 miles above station.

Revisions (water years).--WSP 1171: 1948(M).

Large diRatlng tables, water year 1955-56, except periods of Ice effect 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to June 17, 

Sept. 28-30 June 18 to Sept. 27

0.9 

1.0 

1.5

2.0 

3.0 

4.0

180

430

765

0.9 

1.1 

1.5

2.0 

3.0 

5.0

186

430

1,120

Discharge, In cubic feet per second, -water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

92

88

86

83

82

83

82

122

100

82

74

71

71

100

105

88

82

74

74

71

70

*70

67

64

64

64

66

64

66

71

68

2,444

78.8

0.438

0.50

Nov.

66

64

66

70

64

64

68

77

68

71

~95 121

86

83

80

82

77 *71

83

97

91

86

83

83

78

77

77

76

74

67

2,345

78.2

0.434

0.48

Dec.

71

73

77

77

77

74

73

70

71

70

66

b65

b70

b77

b55

*b50 bTS"

b70

74

b7_8

b77

77

77

71

70

66.

61

b70

b70

b55

b60

2,167

69.9

0.388

0.45

Jan.

74

73

70

71

67

74

74

73

74

68

74

73

68

63

60

60

66

63

63

»68

b65

b65

64

b57

b60

b57

b57

b60

67

95

112

2,135

68.9

0.383

0.44

Feb.

51 107

160

226

242

415

612

310

248

212

198

236

204

186

176

*166

160

168

158

154

144

131

127

122

136

136

124

119

115

5,589

193

1.07

1.15

Mar.

108

108

99

105

105

95

105

126

152

136

122

131

138

532

490

400

400

310

270

236

214 *196

186

176

162

158

150

140

140

142

133

5,965

192

1.07

1.23

Apr.

126

122

119

122

115

114

285

344

242

210

194

180

162

152

156

225

178

156

144

133

131

119

124

115

114

*112

108

105

105

105

4,615

154

'0.856

0.96

May

88

100

108

108

99

89

~91 124

83

73

88

78

82

74

73

70

64

68

64

61

60

 54

57

54

50

45

51

64

54

47

47

2,268

73.2

0.407

0.47

June

41

59

89

66

60

43

46

40

39

41

40

36

34

22

33

25

34

~68 133

49

48 *51

46

42

35

35

32

28

26

25

1,366

45.5

0.253

0.28

July

23

19

21

28

78

68

132

58

102

110

46

31

30

26

21

26

23

z* *22

153

542

905

285

231

217

150

116

89

79

79

70

3,804

123

0.683

0.79

Aug.

58

136

105

66

78

99

150

T14

94

78

69

69

51

56

59

48

48

41

41

42

55

54

*44

38

26

32

37

37

36

26

37

1,924

62.1

0.345

0.40

Sept.

30

23

26

27

23

36

110

46

36

23

26

42

29

25

22

34

43

*43

32

28

25

22

22

35

31

28

798

727

272

192

2,856

95.2

0.529

0.59

Calendar year 1955: Max 14,000 Mln 20 Mean 216 Cfsm 1.20 In. 16.31

Water year 1955-56: Max 905 Win 19 Mean 102 Cfsm 0.567 In. 7.74

Peak discharge (base. 1.700 cfs). July 22 (3 a.m.) 2,010 cfs (7.40 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
RAPPAHANNOCK RIVER BASIN 567

Rapldan River near Culpeper, Va.

Location. Lat 38°21'0l", long 77°58'31", on left bank 0.7 mile upstream from Cedar Run 

and bridge on U. S. Highway 522, 8.5 miles south of Culpeper, Culpeper County, and at 

mile 29.6.

Drainage area. 465 sq mi.

Records available.--November 1930 to September 1956.

Gage. Water-stage recorder. Datum of gage is 241.36 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943.

Average discharge. 26 years, 524 cfs.

Extremes. Maximum discharge during year, 2,830 cfs July 22 (gage height, 4.86 ft); minimum, 16 cfs Aug. 26, Sept. 11 (gage height, 0.44 ft); minimum daily, 29 cfs Aug. 26. 

1930-56: Maximum discharge, 58,100 cfs Oct. 16, 1942 (gage height, 30.3 ft, from 

floodmark), from rating curve extended above 28,000 cfs on basis of slope-area determination of peak flow; minimum, 2.1 cfs Oct. 4, 5, 11, 1954.

Remarks. Records good except those for periods of ice effect, which are fair. Low flow 

regulated by mill at Rapidan. Occasional small diversions for irrigation above station. 

Records of chemical analyses, water temperatures, and suspended sediment loads for the 

water year 1956 are given in WSP 1450.

Revisions (water years).--WSP 741: 1931. WSP 801: 1934(M) , 1936(M). WSP 1081: 1943- 

4TTWSP 1171: 1932(M) , 1933-35.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 7, 

July 8 to Sept. 30 Apr. 8 to July 7

0.5

.7

1.0

1.3 180

1.6 305

2.0 515

3.0 1,190

4.0 2,040

0.7

.9

1.2

59

122

1.5 222

2.0 475

3.0 1,190

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

£4

25

£6

£7

£8

29

30

31

Total

Mean

Cfsm

In.

Oct.

£04

194

190

177

177

177

174

234

£85

£08

180

168

162

198

£90

204

187

171

168

156

153

*150

144

153

159

139

142

142

142

150

156

5,514

178

0.383

0.44

Nov.

144

144

142

147

139

130

142

156

162

153

251

219

177

171

159

159

*159

142

153

201

194

177

168

162

168

156

150

156

150

139

4,870

162

0.348

0.39

Dec.

136

142

153

153

159

147

147

139

144

142

128

120

128

b!28

144

*bl£0

bl££

139

139

b!20

bl£0

b!33

b!33

120

128

133

122

b!08

bl!5

125

bllO

4,097

132

0.284

0.33

Jan.

b!20

1£5

125

122

120

128

bl!5

b!20

b!20

125

139

147

133

120

105

115

115

112

110

*1£0

110

108

125

108

bj36

b!05

blOO

blOO

122

156

187

3,753

121

O.E60

0.30

Feb.

184

165

£80

548

655

844

1,470

812

631

548

493

570

504

449

422

*390

370

385

365

345

315

275

255

247

270

280

247

231

215

12,765

440

0.946

1.02

Mar.

201

201

190

194

194

187

2T9

227

315

270

243

239

251

1,100

1.430

990

1,150

824

727

614

548

*504

471

444

410

395

375

350

330

345

310

14,2*48

460

0.989

1.14

Apr.

280

275

£70

270

247

239

615

860

5SO

487

434

406

374

348

348

626

5£9

4£9

379

348

327

303

303

284

279

*270

£61

256

244

244

11,115

370

0.796

O.S9

May

218

222

256

265

235

199

248

226

192

177

188

184

184

181

164

158

145

151

148

134

139

122

125

*122

104

97

104

125

125

110

100

5,148

166

0.357

0.41

June

107

131

218

171

134

117

102

89

96

73

97

80

71

64

59

61

57

194

158

117

95

*158

128

91

91

65

50

58

48

45

3,025

101

0.217

0.24

July

43

34

43

38

138

171

312

177

128

219

94

78

71

5S

38

52

49

47

*62

94

1,230

1,820

643

510

385

300

223

187

156

153

136

7,689

248

0.533

0.61

Aug.

117

256

225

150

136

174

239

231

184

142

128

115

120

96

92

100

82

67

69

80

95

108

*92

80

71

29

57

98

98

58

49

3,638

117

0.252

0.29

Sept.

74

40

47

47

46

62

2£1

172

7S

80

40

185

142

58

58

62

78

*94

80

69

55

52

38

55

65

62

1,120

1,860

758

510

6,308

£10

0.452

0.50

Calendar year 1955: Max 22,600 Mln 58 Mean 518 Cfsm 1.11 In. 15.11

Water year 1955-56: Max 1,860 Min 29 Mean 2£5 Cfsm 0.484 In. 6.56

Peak discharge (base, 4,500 efs). No peak above base. 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
568 RAPPAHANNOCK RIVER BASIN

Rappahannock River near Fredericksburg, Va.

long 77 0

irginia Electric & Power Co., 2.2 miles downstream from Motts Run, 3.8 miles upstream 

from Fredericksburg, Spotsylvania County, and at mile 4.4.

Drainage area. 1,599 sq mi.

Records available. September 1907 to September 1956 in reports of Geological Survey. 

October 1907 to September 1927 (records prior to 1912, revised) in Virginia Geological 

Survey Bulletin 31.

Gage. Water-stage recorder. Datum of gage is 56.18 ft above mean sea level, datum of 

1929, Culpeper supplementary adjustment of 1943. Prior to Jan. 6, 1922, staff or chain 

gage at same site and datum.

Average discharge.--49 years, 1,670 cfs.

Extremes. Maximum discharge during year, 12,600 cfs July 21 (gage height, 6.35 ft); minimum, 88 cfs July 4 (gage height, 0.28 ft).

1907-56: Maximum discharge, 140,000 cfs Oct. 16, 1942 (gage height, 25.9 ft, from 

floodmarks), from rating curve extended above 62,000 cfs on basis of flow over dam and 

slope-area determinations at gage heights 25.1 and 25.9 ft; minimum, 5 cfs Oct. 11, 12, 

1930 (gage height, -0.23 ft); minimum gage height, -0.38 ft Oct. 12 1954.

Flood in June 1889 was probably several feet lower than that of Oct. 16, 1942.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Records of chemical analyses and water temperatures for the water year 

1956 are given in WSP 1450.

Revisions (water years).--WSP 756: 

See also Records available.

Drainage area. WSP 801: 1924(M). WSP 951: 1937(M).

Rating table, water year 1955-56, except periods of Ice effect 

height, In feet, and discharge, In cubic feet per second)

0.3

.5

.7

1.0

1.5

125

190

310

600

2.0 

3.0 

4.0 

5.5

1,020

2,500

4,500

9,020

Discharge, In cubic feet per second, water year October 1955 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

434

434

434

410

395

390

390

464

836

742

544

464

434

649

782

884

614

524

488

470

446

428

410

400

395

390

390

390

400 

416

*410

15,257

492

0.308

0.36

Nov.

a430

a450

a410

a410

a430

a42O

a400

a390

a450

3450

a450

a600

a750

a560

a520

a480

a480

a 480

a450

a450

a 540

a560

a560

a560

a520

a 500

a460

a450

a430 

»a410

14,450

482

0.301

0.34

Dec.

380

380

422

434

452

452

428

410

400

405

395

350

'325 296

422

b330

345

385

400

b340

b330

b350

375

375

385

390

b320

b310

b300 

b330

b340

11,556

373

0.233

0.27

Jan.

b340

b340

355

350

350

325

325

288

340

422

458

512

621

500

416

400

400

385

380

375

350

355

428

375

320

375

320

b340

400 

458

*665

12,266

396

0.248

0.29

Feb.

750

678

834

1,830

2,590

2,420

6,920

3,510

2,240

1,770

1,480

1,670

1,670

1,340

1,150

1,100

1,000

1,000

1,080

980

902

814

758

726

734

814

830

734

686

43,010

1,483

0.927

1.00

Calendar year 1955: Max 68,400 Mln 98

Mar.

649

607

614

621

600

593

718

734

1,020

1,020

830

774

782

3,310

7,170

3,640

4,620

3,050

2,500

2,240

1,890

1,600

1,450

1,330

1,210

1,110

1,060

1,000

*960

970

49,632

1,601

1.00

1.15

Apr.

875

814

806

814

806

774

1,660

5,650

3,050

2,080

1,720

1,490

1,330

1,190

1,120

1,510

1,930

1,290

1,110

1,020

950

893

857

830

798

798

774

750

726

*694

39,089

1,303

0.815

0.91

May

678

635

663

766

734

656

621

694

621

544

524

530

530

518

488

440

422

410

428

458

395

380

365

350

340

306

315

345

385

»*°°,

*320

15,261

492

0.308

0.36

June

296

395

476

565

470

375

325

283

265

245

241

222

233

200

172

162

194

288

345

330

301

288

292

315

278

245

208

166

*137

125

8,437

281

0.176

0.20

July

115

108

98

110

1,440

1,960

1,830

970

558

524

544

340

241

204

180

155

204

1,090

635

529

8,720

7,580

3,540

3,050

3,240

2,080

1,350

1,080

884

*734 

642

44,735

1,443

0.902

1.04

Aug.

558

551

1,000

758

635

2.77O

2,080

1,410

990

750

614

530

476

452

428

434

405

370

335

306

345

422

434

360

, 320

292

261

218

229 

*274

233

19,240

621

0.388

0.45

Sept.

200

214

211

172

169

180

296

572

405

265

214

229

253

370

270

218

237

288

296

265

222

214

197

186

180

249

508

6,770

2,960

1,460

18,270

609

0.381

0.43

Mean 1,479 Cfsm 0.925 In. 12.57

Water year 1955-56: Max 8,720 Mln 98 Mean 796 Cfsm 0.498 In. 6.80

Peak discharge (base. 16.000 efs).--No peak above base. 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

station at Remington.

b Stage-discharge relation affected by Ice.
RAPPAHAMOCK RIVER BASIN 

Cat Point Creek near Montross, Va.

569

Location. Lat 38"02'23", long 76"49'38", on right bank 10 ft upstream from bridge on 

State Highway 637, 1.7 miles west of Farmers Pork, 3.8 miles south of Montross, Westmoreland County, and 11.4 miles upstream from mouth.

Drainage area. 45 sq mi, approximately.

Records available. September 1943 to September 1956.

Qage.--Water-stage recorder. Altitude of gage is 2 ft (by barometer). Prior to Aug. 19, 

^1953, staff gage near right bank on downstream side of highway bridge at same datum.

Average discharge. 13 years, 35.4 cfs.

Extremes. Maximum discharge during year, 179 cfs July 23 (gage height, 4.73 ft); minimum, 

0.5 cfs July 4, 5.

1943-56: Maximum discharge, 2,350 cfs Aug. 13, 1955 (gage height, 7.56 ft); no flow 

Sept. 18-20, 1943.

Flood in September 1935 was over bridge floor (elevation, 9.3 ft).

Remarks. Records fair except those for periods of ice effect or no gage-height record, 

which are poor. Low flow regulated by gristmill at Montross.

Revisions (water years). WSP 1382: 1944(M), 1945, 1946-51(M), 1952(P), 1953-54(M).

Discharge, In cubic feet per second, water year1 October 1955 to September 1956

Day

I 

Z

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

19

17

14

11

9.5

8.9

aa 25

33

23

16

11

8.9

39

56_

33

18

15

*13

10

9.9

9.7

8.7

9.5

11

11

10

10

10

16

14

508.2

16.4

0.364

0.42

Nov.

12 

13

12

15

15

14

13

14

15

20

68

59

38

25

*20

18

16

a!4

a20

a35

a25

a20

a!5

a!5

a!5

a20

a20

a!8

a!6

a!5

635

21.2

0.471

0.53

Dec.

a!5

a!5

al5

a20

a20

a!7

a!6

a!5

a20

a35

a25

a!8

a!5

a!5

a!7

a!5

a!3

a!3

a20

*a!6

b!5

b!6

16

19

20

18

15

b!2

bTJ

15

b!6

530

17.1

0.380

0.44

Jan.

bl6 

b!4

15

16

IS

14

14

b!2

b!3

38

74

81

5$

38

28

24

*25

25

23

27

b25

\>ZZ

25

24

b20

20

b!7

b!7

23

29

25

818

26.4

0.587

0.68

Feb.

1!41

95

144

124

152

T35

92

67

67

68

56

*48

46

41

45

48

41

37

33

30

28

27

37

35

29

27

23

1,656

57.1

1.27

1.37

Mar.

21 

23

24

39

37

29

25

33

45

34

36

47

37

72

81

86

92

73

64

*50

40

36

34

33

31

29

28

25

25

27

25

1,281

41.3

0.918

1.06

Apr.

22 

21

22

23

20

34

109

MI

109

69

60

60

50

44

46

56

52

52

39

35

31

30

28

*31

35

35

33

29

27

24

1,374

45.8

1.02

1.14

May

21 

21

31

37

30

26

32

78

45

31

25

23

20

17

14

12

L£

10

9.5

38

30

*20

22

36

24

16

25

46

27

18

13

807.0

26.0

0.578

O.67

June

13 

97

155

T2

41

29

24

30

18

17

16

13

11

8.7

7.4

6.8

1.2

7.4

5.4

*4.0

4.5

5.6

3.9

3.2

2.8

2.6

3.4

2.5

4.5

1.8

622.5

20.8

0.462

0.52

July

1.1

l.O

.8

Ji

1.1

3.3

4.5

3.2

17

50

22

11

5.8

3.9

2.2

1.6

*1.9

11

19

30

74

64

155

71

26

15

8.5

4.7

10

11

7.8

638.0

20.6

0.458

0.53

Aug.

4.5 

4.9

7.8

16

20

24

2T

17

10

8.9

9.8

8.2

7.4

4.5

5.2

3.5

5.1

8.9

13

13

*15

12

8.9

6.6

5.4

7.8

7.4

8.2

7.8

6.0

3 9

300.7

9.70

0.216

0.25

Sept.

3.4 

9.0

18

13

13

14

16

16

15

15

15

15

14

12

9.1

7.7

4.6

3.8

2.5

2.2

1.6

1.1

.9

2TS

5.9

5.6

*55

32" 94

14

430.9

14.4

0.320

0.36

Calendar year 1955: Max 1,360 Min 0.15 Mean 26.2 Cfsm O.582 In. 7.90

Water year 1955-56: Max 155 Mln 0.6 Mean 26.2 Cfsm O.582 In. 7.97

Peak discharge (base. 200 cfs). No peak above base. 

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of 1 discharge measurement, recorded range in 

stage, and records for Piscataway Creek near Tappahannock. 

b Stage-discharge relation affected by ice.
570 RAPPAHANNOCK RIVER BASIN

Piscataway Creek near Tappahannock, Va. 

Location. Lab 37°52'37", long 76°54'03", on right bank at upstream side of bridge on U. S

Highws"ay 360, 0.6 mile south of Henley Fork, 2.3 miles down 

.2 miles southwest of Tappahannock, Essex County.

stream from Sturgeon Swamp,

Drainage area. 28.1 sq mi.

Records available.--July 1951 to September 1956.

Gage. Water-stage recorder. Datum of gage is 2.50 ft above mean sea level, datum of 1929.

Extremes. Maximum discharge during year, 122 cfs Apr. 7 (gage height, 3.40 ft); minimum, 

3.7 cfs July 5 (gage height, 1.42 ft).

1951-56: Maximum discharge, 1,870 cfs Aug. 13, 1955 (gage height, 7.07 ft); minimum, 0.01 cfs Oct. 2, 1954 (gage height, 0.33 ft).

Remarks. Records fair.

Rating table, water year 1955-56, except periods of Ice effect (gage height,

In feet, and discharge, In cubic feet per second)

(Shifting-control method used Oct. 15 to Dec 11, Dec. 15, 17-19, 21, 23-27, 

29, Jan. 3-7, 9-20, 23, 24, Jan. 29 to Feb. 5, July 6 to Sept. 2)

1.4 

1.7 

2.0 

2.3

3.5

7.3

12

22

2.6 

3.0 

3.5

39

78

134

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

Cfsm

In.

Oct.

42

47

35

31

28

28

27

28

40

32

28

26

25

34

53

30

30

25

23

*22

21

21

21

21

23

23

22

22

23

27

29

887

28.6

1.02

1.18

Nov.

27

26

27

30

30

28

28

28

28

30

53

53

33

30

*28

28

27

25

27

35

30

27

26

26

24

26

27

26

24

22

879

29.3

1.04

1.16

Dec.

22

22

24

25

24

22

21

21

26

57

28

b23

b21

b20

22

b21

19

21

24

*b21

18

b!5

22

22

22

20

18

b!5

16

b!6

b!6

664

21.4

0.762

0.88

Jan.

bl4

b!4

20

19

18

17

17

b!7

17

24

41

39

30

24

21

20

21

*20

19

21

b20

b!9

20

20

b!7

b!7

b!6

b!4

21

22

19

658

20.6

0.755

0.85

Feb.

16

18

24

41'

83

64

82

65

50

44

46

53

43

*38

36

34

35

39

34

32

50

30

28

28

35

32

28

28

26

1,142

39.4

1.40

1.51

Mar.

24

26

27

31

29

26

50

51

56

28

28

28

31

50

61

53

72

52

54

*44

40

38

36

36

34

32

32

52

31

31

30

1,133

36.5

1.30

1.50

Apr.

28

28

28

28

26

32

92

114

75

55

50

58

47

42

44

51

46

38

36

36

34

33

32

*32

36

34

33

31

30

28

1,273

42.4

1.51

1.68

May

26

26

51

38

30

26

35

77

48

34

30

28

26

24

21

21

19

20

19

23

25

*20

29

24

17

17

19

24

24

18

16

833

26.9

0.957

1.10

June

15

47

87

36

24

21

19

16

15

15

14

12

11

10

10

10

24

15

12

11

*12

12

10

9.5

8.4

7.3

11

9.4

7.5

6.3

517.4

17.2

0.612

0.68

July

5.7

5.3

4.8

4.5

5.2

22

27

14

16

20

14

10

8.5

8.6

7.5

13

»40

65

37

26

67

39

22

27

24

18

14

13

26

37

20

660.9

21.3

0.758

0.87

Aug.

15

17

19

14

16

21

16

14

12

11

13

12

9.9

9.1

9.1

8.3

7.5

6.9

7.3

24

*30

28

16

12

10

9.4

9.1

8.7

7.8

7.2

6.7

407.0

13.1

0.466

0.54

Calendar year 1955: Max 1,080 Mln 1.4 Mean 24.5 Cfsm 0.872 In. 11.84

Sept.

6.6

S.8

13

10

8.9

8.3

8.9

11

7.8

6.6

6.2

5.7

5.3

4.9

5.5

6.6

6.2

 8.3

6.9

5.7

4.8

4.6

477

6.2

12

9.2

26

66

28

16

328.7

11.0

0.391

0.44

Water year 1955-56: Max 114 Min 4.5 Mean 25.6 Cfsm 0.911 in . 12.39

Peak discharge (base, 120 cfs).--Aor. 7 (9 o.m. ) 122 cfs f3.40 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.
PIANKATANK RIVER BASIN 571

Dragon Run near Church View, Va.

Location. Lat 37°41'00", long 76°43'35", on left bank 400 ft downstream from bridge on 

State Highway 602, 0.8 mile upstream from Briery Swamp, 1.9 miles downstream from Tin 

Branch Swamp, 2.6 miles west of Church View, Middlesex County, and 2.9 miles east of 

Dragonville.

Drainage area. 86 sq mi, approximately.

Records available. August 1943 to September 1956.

Gage. Water-stage recorder. Datum of gage is 34.00 above mean sea level, datum of 1929.

Average discharge. 13 years, 76.0 cfs.

Extremes.--Maximum discharge during year, 204 cfs Feb. 8 (gage height, 5.42 ft); minimum, 

1.0 cfs July 5 (gage height, 3.59 ft).

1943-56: Maximum discharge, 3,840 cfs July 19, 1945 (gage height, 9.91 ft); no flow 

for many days in 1954. , ,_ , ,

Flood in September 1935 reached a stage of about 17 ft, from information by local 

residents.

Remarks. Records good above 20 cfs and fair below.

Rating tables, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Dec. 13 to Jan. 11, Feb. 11 

to Apr. 7, Sept. 27-30)

4.1

4.2

4.6

Oct. 1 to May 9

30 4.8

36 5.0

61 5.5

May 10 to Sept. 30

79

110

226

3.6

3.7 

4.0

1.0

3.0

20

4.4 

4.8 

5.2

45

79

150

Discharge, in cubit feet per second, water year October 1955 to September 1956

Day

1

2

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

92

136

T30

126

120

96

78

69

68

60

53

52

53

64

74

74

75

72

*68

64

60

56

52

48

46

45

44

42

42

50

2,171

70.0

0.814

0.94

Nov.

63

72

78

79

74

68

63

60

58

58

76

87

96

99

*99

92

84

77

73

72

69

69

71

72

71

71

69

67

64

62

2,213

73.8

0.858

0.96

Dec.

60

59

58

58

58

58

58

58

60

63

64

65

6T

58

58

55

50

49

46

*45

43

41

40

41

43

45

46

42

38

38

3_6

1,594

51.4

0.598

0.69

Jan.

34

33

34

35

37

37

38

37

35

44

59

74

86

83

79

73

*67

62

58

58

58

58

58

57

55

54

53

50

50

51

52

1,659

53.5

0.622

0.72

Feb.

53

51

60

67

83

112

168

201

T93

172

154

140

136

*136

134

126

116

112

112

108

106

101

96

91

91

92

94

96

96

3,297

114

1.33

1.43

Mar.

91

88

86

84

83

82

82

83

87

84

84

84

86

97

126

152

172

172

175

*165

146

128

114

105

97

92

89

88

88

86

86

3,282

106

1.23

1.42

Apr.

82

79

78

77

75

76

83

110

140

144

118

110

96

84

79

79

75

71

69

67

64

61

59

*58

60

60

60

60

59

58

2,391

79.7

0.927

1.03

May

55

52

51

53

57

57

56

68

84

M

79

71

63

52

44

42

38

35

34

37

*36

33

39

44

44

43

39

37

38

34

30

1,534

49.5

0.576

0.66

June

29

38

54

77

96

97

75

55

41

31

25

21

18

16

13

12

11

9.8

5.5

*3.0

3.5

3.0

2.6

2.2

2.4

2.8

3.5

3.5

3.5

3.5

757.8

25.3

0.294

0.33

July

3.0

2.4

1.8

Tra- 1.4

il

54

48

59

52

40

30

22

16

11

9.8

*16

28

37

49

54

55

50

76

136

142

110

83

74

68

55

1,396.2

45.0

0.523

0.60

Aug.

47

48

54

51

46

45

44

40

36

31

31

30

27

25

25

23

19

16

18

44

*48

56

56

48

42

38

36

28

22

18

15

1,107

35.7

0.415

0.48

Sept.

12

15

25

24

30

37

36

32

25

22

21

19

16

14

12

10

9.8

*10

9.8

7.5

5.5

4.5

1^0

3.5

5.0

5.5

25

53

63

166

621.1

20.7

0.241

0.27

Calendar year 1955: Max 878 Mln 1.8 Mean 52.8 Cfsm 0.614 In. 8.34

Water year 1955-56: Max 201 Mln 1.4 Mean 60.2 Cfsm 0.700 In. 9.53

Peak discharge (base, 430 cfs). No peak above base. 

Discharge measurement made on this day.
572 WARE RIVER BASIN

Beaverdam Swamp near Ark, Va.

Location. Lat 37 028'15", long 76°33'50", on right bank at downstream side of bridge on 

State Highway 606, 1.4 miles upstream from Beech Swamp, 2.3 miles north of Ark, 

Gloucester County, and 4.3 miles northwest of Gloucester.

Drainage area. 7.1 sq mi, approximately.

Records available. October 1949 to September 1956.

Gage. Water-stage recorder and wooden control. Datum of gage is 36.43 ft above mean sea 

level, datum of 1929.

Average discharge. 7 years, 4.27 cfs.

Extremes. Maximum discharge during year, 60 cfs Sept. 27 (gage height, 3.29 ft); minimum, 

0.02 cfs Aug. 18, 19 (gage height, 1.29 ft).

1949-56: Maximum discharge, 516 cfs Aug. 12, 1955 (gage height, 5.72 ft); no flow 

July 31 to Aug. 2, 1953; minimum gage height, 0.90 ft July 7, 10, 1955.

Remarks.--Records fair except those below 3 cfs and those for period of no gage-height 

record, which are poor.

Rating tables, water year 1955-56 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1-14, 

Mar. 17 to Sept. 30 Oct. 15 to Mar. 16

1.4 

1.45 

1.5 

1.7

0.2 

.5

1.9 

2.2 

2.5 

3.1

4.0

9.0

18

48

1.8 

2.0 

2.2 

2.5 

2.8

2.2

4.0

7.3

18

32

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

7.8

14

7.4

5.0

4.2

4.0

3.8

3.9

6.0

4.2

3.6

3.3

3.1

6.0

13

5.8

3.6

3.2

*3.0

2.7

2.6

2.6

"O2.4

3.7

3.5

3.1

3.1

3.1

8.1

11

153.6

4.95

0.697

0.80

Nov.

5.8

4.5

4.6

7.8

7.6

6.7

6.2

6.5

6.7

10

32

21

9.2

6.0

*5.6

5.2

5.0

4.6

5.4

10

7.1

5.6

5.0

4.8

4.5

6.7

6.9

5.6

4.7

4.2

225.5

7.52

1.06

1.18

Dec.

3.9

3.9

4.4

4.6

4.6

4.2

3.8

3.8

10

20

8.6

4.8

4.1

4.0

4.2

3.9

3.3

3.8

5.0

*a4

33

a3

34

a4

a4

a3.5

a3

a3

a3

a3

a2.5

144.9

4.67

0.658

0.76

Jan.

a2.5

a2.5

a3.5

a3.5

a3.5

a3

a3

33

33

38

a25

a20

a8

36

35

a4.5

*4.7

3.8

3.6

6.0

4.5

3.4

3.7

4.0

3.6

3.3

2.9

3.0

3.6

3 9

3 4

161.4

5.21

0.734

0.85

Feb.

 3-3 2.9

4.0

13

22

15

32

16

9.2

7.3

15

22

10

 7.3

5.8

5.1

7.8

8.6

5.6

5.4

4.8

4.4

3.9

3.9

7.1

6.2

4.5

6.0

4.8

262.9

9.07

1.28

1.38

Mar.

3.9

4.5

4.7

4.1

3.7

3.6

¥76

4.0

4.4

3.6

3.6

3.6

4.0

8.0

5.8

14

-9.6 21

8.7

*6.6

5.8

5.5

5.3

5.3

5.3

5.0

4.7

5.2

5.2

5.3

4.7

182.3

5.88

0.828

0.95

Apr.

4.1

4.0

4.0

4.0

5.7

5.5

18

17

7.2

5.2

12

35

14

8.7

8.5

9.2

6.8

6.3

5.6

5.5

5.2

4.8

4.6

*5.6

6.3

5.5

5.3

4.8

4.6

4.0

235.0

7.83

1.10

1.23

May

3.7

3.8

5.8

6.5

6.5

4.2

8.8

20

6.3

4.7

4.0

3.7

3.2

2.7

2.5

3.2

2.7

2.6

^"9 2.3

*2.5

2.7

13

5.7

3.2

2.7

2.7

4.6

7.6

3.2

2.7

150.7

4.86

0.685

0.79

June

5.5

20

TT

4.4

3.2

2.7

2.3

2.1

2.0

2.0

2.0

1.5

1.3

1.2

1.0

.7

1.0

1.7

1.5

*1.3

1.5

1.3

.9

.7

.6

2.1

8.9

2.3

1.3

.9

88.9

2.96

0.417

0.47

July

0.6

.4

.2

.2

.6

2.9

4.6

2.3

13

22

3.2

1.8

1.3

1.2

1.0

.8

*2.5

2.7

2.1

1.9

1.9

1.6

3.2

 2426

4.6

2.6

1.9

1.7

1.8

1.4

136.0

4.39

0.618

0.71

Aug.

1.3

1.7

4.2

1.8

2.7

3.2

2.0

1.7

1.3

1.0

4.2

1.9

1.3

1.0

.9

.7

.4

.2

17T

6.1

*35

7.0

2.7

1.8

1.3

1.2

1.2

1.0

1.0

.7

.6

92.2

2.97

0.418

0.48

Sept.

0.4

.3

.6

3.8

5.0

7.6

20

3.0

2.0

1.5

1.3

1.5

1.3

1.0

.9

.9

.7

*1.5

1.3

1.6

1.3

1.2

1.1

1.1

1.6

2.2

46

39

14

5.6

169.3

5.64

0.794

0.89

Calendar year 1955: Max 194 Min 0.01 Mean 5.96 Cfsm 0.839 In. 11.41

Water year 1955-56: Max 46 Min 0.2 Mean 5.47 Cfsm 0.770 In. 10.49

Peak discharge (base. 50 efs).--Sept. 27 (2 p.m.) 60 cfs (3.29 ft). 

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range In stsge snd records for 

nearby stations.
YORK RIVER BASIN 573

North Anna River near Doswell, Va.

Location. Lat 37°53'15", long 77°29'15", on left bank 1.5 miles upstream from bridge on 

II. S. Highway 1, 2.5 miles northwest of Doswell, Hanover County, and 4.4 miles upstream 

from Bull Run.

Drainage area. 439 sq mi.

Records available. March 1929 to September 1956.

Gage. Water-stage recorder. Datum of gage is 55.66 ft above mean sea level, datum of 

T929. Prior to Nov. 7, 1930, staff gage at same site and datum.

Average discharge. 27 years, 385 cfs.

Extremes.--Maximum discharge during year, 2,860 cfs July 22 (gage height, 9.50 ft); minimum, 26 cfs Sept. 4 (gage height, 0.53 ft).

1929-56: Maximum discharge, 18,300 cfs Apr. 27, 1937 (gage height, 33.58 ft, from 

floodmarks), from rating curve extended above 10,000 cfs by logarithmic plotting; minimum, 1 cfs Sept. 30 to Oct. 2, 1932.

Remarks. Records good. Prior to November 1943, occasional diurnal fluctuation at low 

flow caused by mill above station.

Revisions (water years).--WSP 1171: 1943.

Rating tables, water year 1955-56 (gage height, in feet, and discharge,

in cubic feet per second) 

(Stage-discharge affected by ice Dec. 22, 31, Jai\. 1, 2, 4, 27, 28)

Oct. 1 to June 2

0.9 

1.2 

1.5 

2.0

69

125

205

390

Note.--Same as 

following table 

above 2.0 ft.

0.5 

.7

1.2

1.5

June 3 to Sept. 30 

23

128

210

2.0 

3.0 

5.0 

8.0

390

765

1,390

2,340

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7 

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

87

87

89

85

83

82

79 

87 

107

150

111

91

93

278

510

242

150

*121

109

103

97

93

91

87

85

85

87

89

93

150 

119

3,620

117

0.267

0.31

Nov.

113

103

99

101

101

101

101 

105 

113

121

205

256

TeT

*142

128

123

119

111

111

130

184

155

130

125

119

115

115

113

113

109

3,842

128

0.292

0.33

Dec.

103

101

113

121

130

125

115 

111 

113

119

119

107

99

113

113

107

130

128

117

117

121

110

111

109

113

117

109

105

117

101 

100

3,514

113

0.257

0.30

Jan.

100

100

97

100

101

107

107 

 97 89 

115

184

232

T93

150

125

*117

121

123

125

128

125

121

130

130

117

111

110

110

121

145 

160

3,891

126

0.287

0.33

Feb.

148

130

TfS

550

970

835

1,840 

1,210 

550

390

322

330

334

266

238

226

223

246

249

229

220

205

181

172

190

242

22.6

196

178

11,266

388

0.884

0.95

Mar.

162

158

T58

175

170

162

181 

184 

235

220

190

184

181

362

1,210

940

1,180

870

*590

442

362

306

282

263

246

226

220

214

205

211 

214

10,703

345

0.786

0.91

Apr.

199

187

184

190

184

190

530 

1,120 

782

422

338

326

290

252

252

458

712

490

322

278

246

229

*223

211

199

196

196

190

187 

178

9,761

325

0.740

0.83

May

168

160

170

199

T99

170

172 

170 

150

140

135

135

135

130

*123

113

105

103

103

107

107

105

103

97

93

85

83

85

87

89

3,914

126

0.287

0.33

June

83

199

'260 343

150

116

104 

97 

97

130

101

84

76

69

61

58

58

58

*77

99

90

84

82

82

74

63

55

45

42

56

2,975

99.2

0.226

0.25

July

37

34

30

29

32

267

402 

268 

152

118

97

79

68

57

50

*43

54

94

193

200

1,390

1,660

2,270

800

446

243

158

120

110 

120

112

9,733

314

0.715

0.82

Aug.

90

87

174

140

108

198

278 

T83 

124

101

85

79

72

68

63

60

55

52

51

*52

55

48

50

54

54

51

47

42

38 

36

M

2,629

84.8

0. 193

0.22

Sept.

31

35

33

27

32

33

213 

490 

T89

97

71

58

54

54

58

52

*57

64

61

54

45

43

40

42

41

42

74

490

454 

233

3,267

109

0.248

0.28

Calendar year 1955: Max 12,000 Min 34 Mean 364 Cfsm 0.829 in . 11.26

Water year 1955-56: Max 2,270 Min 27 Mean 189 Cfsm 0.431 In. 5.86

Peak discharge (base, 5,000 efsl.--No peak above base. 

* Discharge measurement made on this day.
574 YORK RIVER BASIN

Hudson Creek near Boswells Tavern, Va.

Location. Lat 38°02', long 78°11', on right bank at upstream side of bridge on U. S.

Highway 15, 2.7 miles south of Boswells Tavern, Louisa County, 4.8 miles north of Zlon

Crossroads, 5 miles upstream from mouth, and 10 mile s west of Louisa.

Drainage area. 4.1 sq ml, approximately.

Records available. October 1948 to September 1956.

Gage. Water-stage recorder. Concrete control since Oct. 6, 1952. Altitude of gage Is 

376 ft (by barometer).

Average discharge.--8 years, 4.70 cfs.

Extremes.--Maximum discharge during year. 152 cfs July 20 (gage height, 4.82 ft); minimum, 

0.16 cfs July 3 (gage height, 1.40 ft).

1948-56: Maximum discharge, 680 cfs June 10, 1951 (gage height, 7.30 ft), from 

rating curve extended above 340 cfs by logarithmic plotting; no flow for many days In 

1953, 1954.

Remarks.--Records good except those for periods of no gage-height record, which are fair.

Rating table, water year 1955-56 (gage height, in feet, 

and discharge, in cubic feet per second)

1.4

1.5

1.6

1.7

0.10 

.40 

1.1 

2.3

1.8 

2.0 

2.3 

2.6

4.1

9.0

18

Dli charge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfsm

In.

Oct.

0.85

.77

.70

.63

.63

.63

.63

1.2 

93

.63

.63

.56

2 . 5

T74

1.1

.93

*.85

.85

.77

.70 

.70

.70

.85

.85

.93

.85

.77

.85

1.1

 ^3

27.12

0.875

0.213

0.25

Nov.

0.77

. 77

.85

.93

.85

.85

.93

1.1

. 93

3.8

TT3

1.1

*1.0 "1.0

1.0

.93

.85

1.6

1.9

1.2

1.1

1.1

1.0

.93

.93

.93

1.0

.93

. 85

33.63

1.12

0.273

0.30

Dec.

0.85

.93

1.1

1.1

1.0

.93

1.0

1.0

.93

.85

.85

.85

1.0

.93

.93

1.0

*1. 1

.93

.93 

.93

1.1

1.1

1.1

1.0

.85

.77

783

1.0

. 93

30.04

0.969

0.236

0.27

Jan.

0.93

.85

793

1.0

.93

.93

1.0

1.2

1.8

2.0

T75

1.3

1.1

1.0

*1.0

1.1

1.0

1.0

1.1

1.1 1.1 1.1

.93

.93

.93

.93

.93

1.1

1.3

1.1

34.52

1.11

0.271

0.31

Feb.

T73~ 0.93

7.0

13

8.2

26

13

5.2

3.1

3.3

3.7

*2.9

2.3

2.3

2.2

3.3

4.1

2.9

3.1

2.4 

2.2

2.0

2.0

3.1

2.8

2.2

2.2

1.9

132.73

4.58

1.12

1.21

Mar.

.8

.9

.9

.9

.8

.8

.8

.3

.3

.4

.3

.9

~7.8 20

13

9.6

5.5

*5.0

3.7

3.1 

2.8

2.6

2.4

2.3

2.2

2.0

2.0

2.2

2.3

2.0

120.7

3.89

0.949

1.09

Apr.

1.9

1.9

2.0

2.0

1.7

4.4

16

8.8

3.1

3.3

3.5

2.9

2.6

4.3

~6.5 25

4.5

3.7

3.1

2.6 

2.6

*2.3

2.2

2.3

2.4

2.3

2.2

2.2

2.0

128.6

4.29

1.05

1.17

May

1.9

2.2

2.9

275

2.0

1.9

2.0

2.2

1.7

L.7

1.7

1.4

1.2

*1.0

.93

.93

1.1

.93

1.0

.93

.93

.85

.70

770

.70

.85

.93

.70

1.4

1.4

43.38

1.40

0.341

0.39

June

0.85

5.0

276

1.2

.93

.77

.77

.70 

.70

.70

.56

.45

.40

.40

.37

.67

1.1

1.3

*1.7

1.0

1.2 

1.1

.77

.56

.45

.40

.40

.34

.28

00

. £0

27.95

0.932

0.227

0.25

July

0.28

19 

.22

4.4

2.4

6.6

5.6

2.0 

1.7

1.3

.85

.70

.70

.70

.45

*.40

.56

.85

.56

22

5.2 

9.2

9.3

19

6.8

2.3

1.5

1.1

1.1

1.3

al.l

129.17

4.17

1.02

1.18

Aug.

al.O

al.O

a. 8

a. 7

a. 8

a2.7

1 . 1

2.6 

1.1

.77

a. 8

a. 7

a. 6

a. 5

a. 5

a. 5

a. 45

a. 45

a. 45

*a.5

.77 

.63

.50

.50

.40

.37

.40

.56

.31

.34

.40

23.20

0.748

0.182

0.21

Sept.

0.70

.63

.56

.40

.45

.70

2.4

.77 

.40

.34

.31

.31

.28

.25

.28

.56

*.40

.37

.31

.28

ti

.25

.22

.31

.34

9.2

575

1.5

1.1

29.09

0.970

0.237

0.26

Calendar year 1955: Max 181 Min 0.06 Mean 3.52 Cfsm 0.859 In. 11.64

Water year 1955-56: Max 26 Min 0.22 Mean 2.08 Cfsm O.5O7 In. 6.89

Peak discharge (base. 240 cfs). No peak above base. 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

South Anna River near Ashland.
YORK RIVER BASIN 

South Anna River near Ashland, Va.

575

Location. Lat 37°47'48", long 77°32'57", on right bank at downstream side of bridge on 

State Highway 54, 4.5 miles northwest of Ashland, Hanover County and 7.6 miles upstream 

from Newfound River.

Drainage area . 393 sq mi.

Records available . October 1930 to September 1956.

Gage. Water-stage recorder. Datum of gage is 83.74 ft above mean sea level, datum of ~

Average discharge .--25 years (1931-56), 363 cfs.

Extremes. Maximum discharge during year, 12,800 cfs July 21 (gage height, 22.22 ft); minimum, 29 cfs July 5, 6; minimum gage height, 1.62 ft July 5.

1930-56: Maximum discharge , 13,700 cfs Apr. 28, 1937 (gage height, 22.77 ft'); minimum daily, 4 cfs for several days in September 1932.

Flood of Aug. 15, 1928, reached a stage of about 24 ft (discharge, about 14,500 cfs).

Remarks . Records good except those for periods of ice effect, which are fair. Small diurnal fluctuation caused by gristmills above station.

Revisions (water years ). WSP 801: 1935(M).

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 7 Feb. 8 to Sept. 30

2.2 

2.5 

3.0 

5.0 

8.0

86

126

210

825

1,920

45

79

139

249

4.0 511

5.0 825

8.0 1,920

13.0 4,040

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

96

95

95

92

90

96

90

103

132

112

108

98

104

965

515

350

232

*170

145

137

127

120

113

112

109

107

104

108

103

350

170

5,348

173

0.440

0.51

Nov.

140

126

125

123

120

116

112

116

119

134

'266" 329

225

*181

156

145

146

132

133

145

145

148

148

137

130

132

129

113

123

118

4,412

147

0.374

0.42

Dec.

120

113

123

lie

125

123

122

126

122

155

150

123

115

106

125

118

119

129

*120

120

104

bl!5

129

116

116

125

blOO

b90

bllO

bllO 

bllO

3,655

118

0.300

0.35

Jan.

bllO

bllO

111

108

106

109

104

99

119

134

208

238

196

172

145

*135

150

129

129

132

156

129

137

157

125

126

112

b95

b!20

143

140

4,120

133

0.358

0.39

Feb.

129

135

179

521

1,140

1,140

1.640

1,600

719

47O

405

4O5

*366

327

296

270

288

340

340

324

280

262

231

213

244

262

301

272

236

15,333

460

1.17

1.26

Mar.

206

195

'262' 190

246

216

204

226

267

309

283

254

252

431

720

965

965

930

*650

511

405

353

319

298

275

257

241

241

223

2 16 

221

11,331

566

0.931

1.07

Apr.

211

197

192

199

186

221

650

1,140

950

498

592

457

405

540

511

552

895

650

418

340

298

270

*252

233

218

216

201

199

197

188

11,456

382

0.972

1.08

May

173

169

181

206

201

186

213

221

167

155

146

137

131

*126

115

112

107

106

99

96

94

90

94

97

89

78

79

78

85

85

3,993

129

0.328

0.58

June

99

458.

418

267

188

133

110

101

90

83

79

77

65

65

61

59

55

72

*79

72

77

74

66

62

57

55

50

49

46

45

5,220

107

0.272

0.50

July

39

34

51

55

2,9

90

181

146

181

112

92

82

67

54

45

*47

55

56

51

1,760

5,880

702

1,180

965

1,000

607

288

177

144

177 

129

12,432

401

1.02

1.18

Aug.

113

110

94

87

95

125

103

118

107

90

106

89

77

67

61

62

56

55

62

*79

153 129"

86

74

62

57

55

54

48 

49

13.

2,564

82.7

0.210

0.24

Sept.

45

108

97

55

48

55

576

498

239

141

96

75

68

62

61

56

*59

59

55

52

50

48

43

47

51

62

118

198

392 

278

3,786

126

0.321

0.36

Calendar year 1955: Max 7,050 Min 38 Mean 364 Cfsm 0.926 In. 12.58

Water year 1955-56: Max 3,880 Min 29 Mean 218 Cfsm 0.555 In. 7.54

Peak discharge (base. 2.200 cfs). July 21 (12:30 a.m.) 12,800 cfs (22.22 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
576 YORK RIVER BASIN

Pamunkey River near Hanover, Va.

Location.--Lat 37°46'03", long 77°19'57", near center of span on downstream side of

bridge on State Highway 614, 0.3 mile upstream from Mechumps Creek, 2.0 miles east of 

Hanover, Hanover County, and 7.0 miles upstream from Millpond Creek.

Drainage area. 1,072 sq mi.

Records available. December 1941 to September 1956.

Gage.--Wire-weight gage read twice daily. Datum of gage is 14.72 ft above mean sea level, 

datum of 1929.

Average discharge. 14 years (1942-56), 960 cfs.

Extremes.--Maximum discharge during year, 6,280 cfs July 21; maximum gage height, 17.70 ft 

July 22, from graph based on gage readings; minimum discharge observed, 70 cfs July 5 

(gage height, 1.94 ft).

1941-56: Maximum discharge, 20,900 cfs Aug. 20, 1955; maximum gage height, 26.12 ft 

Aug. 20, 1955, from graph based on gage readings; minimum discharge, 15 cfs Sept. 26, 

1954 (gage height, 1.30 ft).

Flood in August 1928 reached a stage of 32.6 ft, from information by local residents.

Remarks. Records good except those for periods of ice effect, which are fair. 

Revisions (water years).--WSP 1382: 1949.

Rating tables, water year 1955-56, except periods of ice effect (gage height,

in feet, and discharge, in cubic feet per second)

(Shifting-control method used Oct. 1-15; rate of change in stage used 

as a factor for most days with discharge above 1,100 cfs)

Oct. 1-15 Oct. 15 to Sept. 30

3.0

5.0

8.0

12.0

205

575

1,420

2,620

2.0 

3.0 

5.0

75

185

540

9.0

13.0

17.0

1,660

2,960

5,250

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

303

285

285

269

269

253

269

269 

375

357

357

303

269

2.620

2,100

1,360

940

*665

500

460

404

386

350

350

350

332

314

314

314 

440

740

16,802

542

0.506

0.58

Nov.

460

404

386

368

368

368

350

368 

368

368

740

890

765

615

520

460

422

404

404

440

460

500

460

422

404

404

404

404

386 

368

13,680

456

0.425

0.47

Dec.

368

350

350

386

386

386

386

368 

368

404

422

386

350

314

368

350

332

368

*404

314

b320

314

b320

b310

b310

b310

b310

278

278 

b300

78

10,688

345

0.3E2

0.37

Jan.

b28o

b280

b280

b280

b280

278 296"

278 

278

404

520

765

690

565

460

*422

404

386

386

404

404

404

404

422

386

368

350

296

314 

404

440

12,128

391

0.365

0.42

Feb.

422

404

440

865

2,520

2,700

3,650

4.S70

1,*660

1,150

1,150

 1,030

940

815

740

715

865

865

815

74O

665

615

590

640

690

715

690

615

35,116

1,211

1.13

1.22

Mar.

565

520

500

590

665

590

520

565 

640

690

690

640

615

815

1,790

2,490

2,560

2.600

1,980

1,510

1,180

970

865

790

740

690

640

640

615 

590

590

29,845

963

0.898

1.04

Apr.

565

540

520

520

500

500

1,150

2,470 

2,550

1,690

1,090

1,120

1,030

890

790

1,030

1,750

1,800

1,210

890

765

690

*640

615

590

565

565

540

520 

500

28,595

953

0.889

0.99

May

480

440

46O

540

540

500

480

815 

540

440

422

386

386

368

332

314

296

278

278

296

278

260

278

260

245

23O

215

245

230 

230

230

11,292

364

0.340

0.39

June

230

565

1.740

1,060

640

422

332

278 

332

368

386

260

215

200

179

167

215

179

200

*200

200

215

200

185

173

161

149

143

130 

130

9,854

328

0.306

0.34

July

105

105

110

95

IP167

520

520 

404

332

230

200

167

161

110

 115

161

260

230

314

4,140

4.990

3,930

3,550

2,250

1,550

815

460

368 

350

350

27,139

875

0.816

0.94

Aug.

278

278

278

350

260

422

500

460 

350

260

230

215

185

167

167

149

149

130

125

*215

245

332

230

179

155

149

137

125

137

ill

7,097

229

0.214

0.25

Sept.

120

105

245

173

125

115

161

1.120 

815

422

230

185

161

161

155

155

*143

155

149

149

137

137

115

125

143

155

215

296

890 

765

8,022

267

0.249

0.28

Calendar year 1955: Max £0,300 Mln 87 Mean 962 Cfsm 0.897 In. 12.17

Water year 1955-56: Max 4,990 Mln 80 Mean 574 Cfsm 0.535 In. 7.29

Peak discharge (base, 4,200 cfs). Feb. 8 (5 p.m.) 4,320 cfs (15.60 ft 6 to 8 p.m.); July 21 

(9 p.m.) 6,£80 cfs (17.70 ft I to 2 a.m. July 22). 

* Discharge measurement made on this day, 

b Stage-discharge relation affected by Ice.
YORK RIVER BASIN 577

Totopotomoy Creek near Atlee, Va.

Location. Lat 37°40'09", long 77°22'58", on right bank at upstream side of bridge on 

U. S. Highway 301, 0.7 mile upstream from Opossum Creek and 1.6 miles northeast of 

Atlee, Hanover County.

Drainage area. 6.0 sq ml, approximately.

Records available. October 1948 to September 1956.

Gage.--Water-stage recorder. Concrete control since Oct. 2, 1952. Control has been Ineffective since Aug. Vc., 1954, due to sand fill. Altitude of gage Is 113 ft (by 

barometer).

Average discharge. 8 years, 5.37 cfs.

Extremes. Maximum discharge during year, 158 cfs Oct. 14 (gage height, 5.85 ft); minimum, 

0.1 cfs July 2, 3-5.

1948-56: Maximum discharge, 748 cfs Aug. 13, 1955 (gage height, 8.62 ft); minimum, 

0.01 cfs June 27, 1952 (gage height, 1.49 ft).

Remarks. Records fair except those for periods of Indefinite stage-discharge relation 

and no gage-height record, which are poor. Occasional small diurnal fluctuations, 

cause unknown,

Rating table, water year 1955-56, except period of indefinite stage-discharge

relation (gage height, in feet, and discharge, In cubic feet per second)

(Shifting-control method used Mar. 16 to Apr. 6, June 3-6,

June 18 to Sept. 30)

0.1

1.7 

3.1 

7.1

3.0 

3.5 

4.0 

5.0 

6.0

100

172

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

e2.5

e2.5

e2.4

e2.4

e2.4

e2.4

e2.6

e2.6

e2.5

e2.4

e2.5

e2.4

119

58

37

23

15

*11

8.3

7.1

6.0

5.3

5.3

5.6

5.3

4.9

4.9

4.9

7.7

6 2

366.6

11.8

1.97

2.27

Nov.

4.5

4.5

4.7

4.5

4.5

4.4

4.4

4.4

8.1

21

12

8.0

*6.2

5.6

4.9

4.7

4.0

5.7

7.4

6.0

5.6

4.9

4.9

4.7

5.3

5.1

4.9

4.7

4.2

178.7

5.96

0.995

1.11

Dec.

.2

.5

.5

.5

4.0

3.8

3.8

6.4

8.6

5.3

4.4

4.0

3.8

4.0

3.6

3.5

3.8

*4.4

3.6

3.1

3.1

3.6

4.0

4.0

3.6

3.1

2.8

278

3.5

3.1

125.4

4.05

0.675

0.78

Jan.

3.0

3.1

3.3

3.1

3.0

2.8

2.7

2.8

6.2

11

To

6.9

5.3

4.5

4.4

*4.4

4.0

4.0

4.7

4.4

3.8

4.0

4.0

3.5

3.6

2.8

2.8

4.5

4.9

4.0

134.5

4.34

0.723

0.83

Feb.

Itf

6.9

20

36

31

49

28

19

15

13

13

*11

8.8

8.3

7.4

9.4

12

9.4

8.3

6.9

6.0

5.6

5.6

8.0

6.7

5.6

5.3

4.5

366.6

12.6

2.10

2.26

Mar.

4.4

4.7

6.9

5.6

4.9

4.5

5.3

5.6

4.4

4.4

4.4

6.7

18

21

20

25

16

*15

10

7.4

6.2

5.6

5.1

4.2

3.8

3.6

4.0

3.6

3.6

Sj-i

241.2

7.78

1.30

1.50

Apr.

2.7

2.7

2.5

2.4

7.3

2525"

15

10

11

17

12

9.1

9.4

15

11

8.3

6.9

6.4

5.8

5.3

4.9

5.1

5.1

5.1

*4.9

4.7

4.5

3.8

250.6

8.35

1.39

1.55

May

3.5

5.1

5.6

3.6

3.3

22

5029"

19

13

11

7.4

3.6

*2.7

2.5

2^3

2.7

6.2

19

4.1

20

44

43

a 10

a6

a4

a3

a3

a3

a3

358.1

11.6

1.93

2.22

June

a6O

45

17

8.8

6.0

a4

a3

a2.5

a2

al.5

al.5

al

al

a. 9

a. 8

al.5

13

3.0

*2.3

2.3

2.0

1.4

1.1

.8

.7

1.4

.7

.5

i?_

190.0

6.33

1.06

1.18

July

0.2 

.2

.2

7T

7.3

18

3.0

3.0

2.7

1.7

1.3

1.2

1.2

.8

*2.0

19

10

4.0

14

42

21

10

27

45

19

11

7.7

9.1

8.3

3.3

293.4

9.46

1.58

1.82

Aug.

2.8 

7.1

4.4

2.7

4.6

8.8

4.4

3.0

2.3

2.1

6.9

3.5

2.1

1.6

1.4

1.2

.9

.7

.7

1.6

*12_

6.2

3.0

1.8

1.3

1.2

1.1

.9

.7

.7

-»5-

92.2

2.97

0.495

0.57

Sept.

5|^

44

12

6.9

8.0

16

14

6.7

4.4

3.6

3.1

3.0

2.7

2.1

2.4

*1.4

1.2

1.2

1.1

1.0

1.0

.9

1.5

1.7

1.8

6.2

4.9

3.3

2.7

218.4

7.28

1.21

1.35

Calendar year 1955: Max 446 Min 0.2 Mean 5.96 Cfsm 0.993 In. 13.49

Water year 1955-56: Max 119 Min o.l Mean 7.69 Cfsm 1.28 In. 17.44

Peak discharge (base. 45 cfs). Oct. 14 (11 a.m.) 158 cfs (5.85 ft): Feb. 7 (3 a.m.) 56 cfs

(3.97 ft); May 8 (5 a.m.) 63 cfs (4.13 ft); May 23 (6 p.m.) 48 cfs (3.81 ft); June 2 (7 p.m.) 

102 cfs (5.18 ft); July 21 (9:30 a.m.) 54 cfs (4.O6 ft); July 25 (2 a.m.) 69 cfs (4.43 ft); Sept. 2

(9 p.m.) 110 cfs (5.38 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby stations.

e Stage-discharge relation indefinite; discharge estimated on basis of records for nearby

stations.
578 YORK RIVER BASIN

Mattaponl River near Bowling Green, Va.

Location.--Lat 38°03'42", long 77°23'10", on left bank at downstream side of highway 

bridge, 0.1 mile upstream from bridge on State Highway 605, 2.2 miles northwest of 

Bowling Green, Caroline County, 2.4 miles upstream from South River, and 7.1 miles 

downstream from confluence of Matta and Ponl Rivers.

Drainage area.--251 sq ml.

Records available.--September 1942 to September 1956.

Gage. Water-stage recorder. Datum of gage Is 85.14 ft above mean sea level, datum of 

"1929.

Average discharge. 14 years, 228 cfs.

Extremes.--Maximum discharge during year, 990 cfs Feb. 9 (gage height, 7.86 ft); minimum, 

5.6 cfs July 4, Sept. 1 (gage height, 1.50 ft).

1942-56: Maximum discharge, 10,400 cfs Oct. 17, 1942 (gage height, 17.45 ft), from 

rating curve extended above 6,200 cfs; no flow Sept. 22-30, Oct. 7-14, 1954.

Flood in August 1928 reached a stage of 19.5 ft, from relative difference of this 

flood and flood of Oct. 17, 1942, at Milford 4 miles downstream (discharge, 15,000 cfs, 

from rating curve extended above 6,200 cfs).

Remarks .--Records fair.

Revisions (water years). WSP 1382: 1943, 1945(M), 1948(M), 1949, 1953(M).

Rating table, water year 1955-56 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Oct. 1 to Nov. 11, Jan. 11 to Feb. 6, 

July 11-Z6, Aug. 3-11, 19-2Z; stage-discharge relation affected 

by Ice Dec. 12-14, 16, 17, ZO-ZZ, Dec. 31 to Jan. Z)

1.5

1.6 

Z.O 

Z.5

5.6

7.0

19

44

3.0 

4.0 

6.0 

8.0

83

Z1Z

557

1,050

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

z

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

ZO

Zl

Z2

Z3

Z4

25

Z6

27

Z8

Z9 

30

31

Total

Mean

Cfsm

In.

Oct.

23

19

15

17

ZZ

2Z

18

ZZ

38

Z8

42

36

34

396

459

Z80

140

86

61

*54

44

36

26

24

36

29

Z8

Z8

31

113

99

2,306

74.4

O.Z96

0.34

Nov.

85

65

55

54

44

4"5 39

57

54

53

152

18Z

176

124

103

*9Z

83

68

78

99

107

114

99

91

73

75

73

72

7Z

72

2,556

85. Z

0.339

0.38

Dec.

66

64

69

68

7Z

85

71

71

7Z

74

63

63

60

54

63

58

51

56

65

65

*55

50

6Z

62

64

67

66

54

57

50

50

1,947

6Z.8

O.Z50

0.29

Jan.

50

50

5Z

55

58

59

55

50

54

72

153

Z20 Z04"

141

103

86

8Z

*82

8Z

87

85

79

83

80

7Z

74

68

63

66

86

102

Z,653

85.6

0.341

0.39

Feb.

98

90

119

Z42

404

517

66Z

803

96Z

754

413

3Z7

295

Z64

*ZZ7

197

190

204

204

197

174

155

139

1Z4

146

190

181

154

1Z5

8,557

Z95

1.18

1.27

Mar.

HZ

105

103

1ST

1ZZ

115

107

115

176

18Z

164

143

1Z7

Z1Z

404

537

684

707

66Z

517

*335

257

212

197

181

158

146

143

134

134

133

7,445

Z40

0.956

1.10

Apr.

1Z5

114

110

112

110

110

280

517

640

750

517

303

257

21Z

197

264

360

344

257

204

171

158

143

130

*125

1Z1

120

119

115

107

7,072

Z36

0.940

1.05

May

97

90

10Z

1ZO

1Z4

114

119

250

190

134

10Z

89

77

7Z

71

60

61

58

50

41

44

*49

50

47

44

34

32

48

57

45

39

2,510

81.0

0.3Z3

0.37

June

35

1Z8

386

335

171

89

68

54

37

38

48

39

Z4

ZO

15

16

7Z

144

89

63

*48

47

36

3Z

Z6

ZZ

ZZ

18

15

11

Z,148

71.6

O.Z85

0.3Z

July

11

7.0

7.0

6.8

r?

51

74

117

18Z

Z57

190

80

44

Z8

19

16

39

*142

Z87

257

468

557

684

431

Z20

1Z5

81

57

37

45

48

4,584.8

148

0.590

0.68

Aug.

38

5Z

78

78

71

257

369

Z87

134

78

66

43

34

39

Z8

Z3

19

1Z

19

113

84

*66

47

34

ZZ

16

13

13

17

14

8.8

2,17Z.8

70.1

O.Z79

0.3Z

Sept.

6.2 779"

7.6

8.8

7.6

16

84

94

65

57

37

Z6

Zl

18

16

34

40

34

*Z4

ZZ

18

15

1Z

15

Z3

ZO

54

144

Z12

17Z

1,311.1

43,7

0.174

0.19

Calendar year!955 : Max 5,910 Min 4.0 Mean 177 Cfsm 0.705 In. 9.58

Water yearl955-56 : Max 962 Miri 6.Z Mean 124 Cfsm 0.494 In. 6.70

Peak discharge (base. 1.000 cfs). No peak above base. 

* Discharge measurement made on this day.
YORK RIVER BASIN 579

Mattaponi River near Beuiahville, Va.

Location. Lat 37°53'18", long 77°09'48", on right bank at upstream side of highway

bridge, 2.4 miles north of Beuiahville, King William County, and 2.7 miles downstream 

from Maracossic Creek.

Drainage area. 619 sq mi.

Records available. September 1941 to September 1956.

Gage.--Water-stage recorder. Datum of gage is 13.99 ft above mean sea level. Prior 

to Oct. 19, 1942, wire-weight gage at same site and datum.

Average discharge. 15 years, 562 cfs.

Extremes.--Maximum discharge during year, 2.050 cfs Oct. 16 (gage height, 12.14 ft); minimum, 52 cfs July 5 (gage height, 2.20 ft).

1941-56: Maximum discharge, 8,700 cfs July 20, 1945 (gage height, 20.0 ft from 

floodmarks); minimum, 7.3 cfs Sept. 29, 30, 1954.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating tables, water year 1955-56, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 11 Feb. 12 to Sept. 30

3.5 

6.0 

9.0 

12.0

160

475

1,100

2.OOO

2.2 

2.6 

3.0

52

79

110

6.0

9.0

11.0

520

1,100

1,620

Discharge, in cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

g

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

226

220

202

184

178

a!70

a 180

alSO

a200

a3OO

a250

a310 

a280

a260

al.OOO

a2 . OOP

al.100

aSOO

a600

*a500

419

366

328

316

304

298

298

286

286

304

419

12,764

412

0.666

0.77

Nov.

620

505

405

366

353

328

316

316

328

366

540

660

720

580

490

*433

379

340

340

379

419

405

392

379

353

353

340

340

328

316

12,389

413

0.667

0.74

Dec .

304

298

304

316

328

b310

b300

b285

316

555

353

328 

b280

b250

b270

b270

b230

b230

b270

b270

*b220

b230

b250

b250

b260

b260

b250

b230

b230

b220

b220

8,485

274

0.443

0.51

Jan.

b220

b?TO

b220

b230

262

256

250

232

226

250

392

600 

720

64O

490

433

392

*366

353

353

353

353

340

340

340

316

298

280

286

328

353

10,692

345

0.557

0.64

Feb.

366

353

392

556

860

,080

,280

,420

,480

,480

,540

.600 

1,500

1,120

*850

712

658

658

658

640

586

550

520

490

505

535

550

568

520

24,027

829

1.34

1.44

Mar.

475

430

430

490

550

550

505

505

520

550

550

550 

535

604

770

930

1,120

1,250

1,350

1,400

* 1.420

1,320

1,010

750

640

604

568

535

520

505

505

22,441

724

1.17

1.35

Apr.

490

475

460

445

430

430

658

950

1,180

1,250

1,250

1.280 

1,250

950

712

712

810

870

350

750

622

550

520

490

*475

475

460

460

430

 415

21,099

703

1.14

1.27

May

400

378

385

445

460

415

415

676

850

730

520

430 

370

332

297

269

248

241

234

276

269

*228

248

241

215

202

189

234

269

241

208

10,915

352

0.569

0.66

June

171

340

910

1,200

1..220

830

445

318

255

241

332

311 

222

177

148

121

121

297

445

355

*248

222

189

171

138

121

215

189

148

110

10,210

340

0.549

0.61

July

88

72

65

59

57

77

87

132

165

269

340

332 

234

148

106

91

311

*676

694

676

1,100

1,250

1,250

1,180

1,120

950

505

325

400

362

304

13,425

433

0.700

0.81

Aug.

255

234

297

332

297

430

658

750

64O

445

348

269 

222

171

154

148

126

106

101

297

318

*475

385

340

196

160

132

110

97

90

61

8,664

279

0.451

0.52

Sept.

JS

82

202

290

208

154

202

215

311

234

183

154 

126

101

97

121

126

138

*126

1O6

92

86

82

80

106

101

171

348

460

415

5,195

173

0.279

0.31

Calendar year 1955: Max 7,100 Mln 33 Mean 474 Cfsm 0,766 In. 10.38

Water year 1955-56: Max 2,000 Hin 57 Mean 438 Cfsm 0.708 In. 9.63

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

station near Bowling Green.

b Stage-discharge relation affected by ice.
580 REVISIONS OP RECORDS FOR DISCONTINUED STATIONS

Hudson River at Thurman, H. Y.

Location. Lat 43°28'50", long 73°44'15", on upstream side near center of left span of 

Delaware and Hudson Railroad bridge near Thurman, Warren County, half a mile downstream 

from Schroon River and 13 miles upstream from Sacandaga River.

Drainage area. 1,533 sq mi (revised).

Records available.--September 1907 to September 1920 (discontinued). No winter records in 

water years 1912-19.

Gage.--Chain gage read twice daily. Altitude of gage is 610 ft (from topographic map). 

Average discharge.--13 years (1907-20), 2,690 cfs.

Extremes. Maximum and minimum discharges for the water years 1908-10 are contained in the 

following table. Gage heights are from graphs based on gage readings.

Water 

year

1908 

1909 

1910

Maximum

Date

Apr. 27, 1908 

Apr. 15, 1909 

Mar. 31, 1910

Discharge 

(cfs)

17,000 

20,900 

17,400

Gage height 

(feet)

7.60 

8.46 

7.7

Minimum

Date

Sept. 27, 1908 

Sept. 23, 1909 

Oct. 17, 1909

Discharge 

(cfs)

515 

417 

508

Gage height 

(feet)

2.12 

1.98 

2.11

1907-20: Maximum discharge, about 46,000 cfs Mar. 27, 1913 (gage height, 12.5 ft, 

from floodmarks); minimum observed, 236 cfs Sept. 28, 1913 (gage height, 2.04 ft).

Remarks. Some diurnal fluctuation at low flows caused by mills on Schroon River. Seasonal flow partly regulated by Indian Lake Reservoir on Indian River (see p. ) and 

other reservoirs on Schroon River.

Revisions. Revised figures of discharge, in cubic feet per second, for some periods in the 

water years 1908-11, and 1920, superseding those published in WSP 241, 261, 281, 301, and 

501, are given herein. Complete tables of daily discharge are given for the water years 

1908-10, but only revised discharges are given for the other water years.

Date

1910

Dec. 6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

Discharge

900

900

1,000

1,000

1,000

950

950

850

850

850

850

800

800

850

850

850

800

800

900

900

850

850

950

950

Date

1910-Con.

Dec. 30

31

1911

May 1

2

3

4

5

6

7

1920

July 1

2

3

4

5

6

7

8

9

15

16

Discharge

1,000

1,000

12,000

14,800

14,000

10,500

9,340

6,040

7,610

850

850

850

850

850

950

1,200

1,600

1,600

1,220

1,300

Date

1920-Con.

July 17

25

26

27

28

30

31

Aug. 1

3

4

5

6

8

13

14

15

19

20

21

22

24

25

26

27

Discharge

1,080

1,300

1,150

1,150

1,080

1,220

1,220

1,300

1,300

1,300

1,300

1,220

1,300

1,300

,020

,380

,300

,150

,150

,300

,300

1,300

1,220

1,220

Date

1920-Con.

Aug. 28

Sept. 4

6

8

9

10

11

12

13

15

16

17

18

19

21

22

23

24

26

28

29

30

Discharge

1,300

850

1,380

1,380

1,300

1,300

1,220

1,150

1,380

1,300

1,220

1,150

1,220

1,220

1,220

1,300

1,220

1,220

1,300

1,300

1,220

1,220

Month

May 1911. .......................

Calendar year 1911. ...........

July 1920. ......................

Water year 1919-20. ...........

Maximum

_ 15 , 900

14,800

13,300

Minimum

600

340

545

Mean

2,620

t2,160

1,320

2,670

Per square

mile

1.71

1.41

.861

1.74

Runoff In 

Inches

23.18

19.15

.99

23.75

t Partly estimated.
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Hudson River at Thurman, N. Y. Continued 

Discharge, in cubic feet per second, water year October 19O7 to September 1908

581

Day

1 

2

3

4

5

6 

7

6

9

10

11

12

13

14

15

16

17 

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

3,480 

3,900

2,250

2,030

2,110

1,990 

2,030

3,260

5,760

5,760

7.400

4,430

3,930

3,160

2,700

2,290

2,090 

1,860

1,660 

1,720

1,840

1,920

1,600

1,440

1.400

1,550

1,660

3,280

5,270

4,690

3,960

92,420

2,980

1.94

2.24

Nov.

3,260 

2,940

4,210

6,770

6,050

5,900 

11.200

10,900

9,860

9,110

7,400

6,380

5,670

4,950

4,180

3,640

3,330 

2,940

2,590 

2,340

2,400

2,430

2,400

2,310

2,270

2,270

2,200

2,030

2,010

1 990

 A« 

135,930

4,530

2.95

3.29

Dec.

1,900 

1,860

1,840

1,780

1,760

1,720 

1,700

1.660

1,680

3,210

5,890

5,030

4,350

4,090

3,740

4,320

3,740 

3,360

3,110 

2,990

2,800

2,590

2,750

5,590

5,650

5,440

5,150

4,950

5,090

5,300

6.040

111,100

3,580

2.34

2.70

Jan.

5,500 

5,270

4,830

4,180

3,560

3,160 

3,200

3,200

3,200

3,000

2,800

2,600

2,600

2,800

2,600

2,400

2,400 

2,200

2,200 

2,200

2,000

2,200

2,200

2,000

2,000

2,000

2,000

2,400

1,800

1 900

i!soo

85,700

2,760

1.80

2.08

Feb.

1.500 

1,500

1,600

1,600

1,800

2,000 

2,000

2,000

1,900

2,000

2,000

2,000

2,000

2,000

2,400

3,200-

7.500 

6,500

6,500 

6,000

6,000

5,500

4,600

4,000

3,600

3,400

3,200

3,200

3,000

94,500

3,260

2.13

2.29

Mar.

2.600 

2,800

3,000

3,200

3,000

3,000 

3,400

3,600

3,600

3,600

3,400

3,400

3,200

3,400

4,200

5,500

5,500 

5,500

5,500 

5,500

5,000

4,600

4,600

5,000

6,000

6,310

7,440

8,210

9,930

9,560

10.100

153,650

4,960

3.24

3.73

Apr.

9,160 

8,460

7,120

6,500

6,070

5.710 

6,460

8,350

10,200

9,930

10,400

10,600

10,100

8,800

8,010

7,780

7,250 

6,930

7,350 

7,020

6,190

5,770

5,710

6,800

8,560

9,490

16.400

16,300

16,300

13,700

267,420

8,910

5.81

6.49

May

16.100 

13,900

12,700

12,100

10,800

10,200 

8,320

11,200

9,970

9,230

8,460

9,600

10,700

11,300

11,800

11,000

8,520 

6,310

5,710 

6,680

5,650

4,890

7,910

6,370

4,770

4,570

4,070

3,960

3,400

5.090

3,500

256,580

8,280

5.40

6.22

June

5.500 

3,210

5,060

2,680

2,580

2,400 

2,050

1,560

1,550

1,920

1,490

1,510

1,800

1,550

1,420

1,550

1,580 

1,260

1,190 

1,500

1,400

1,680

1,600

1,470

1,510

1,510

1,250

962

1,000

1,050

51,092

1,700

1.11

1.24

July

1,250 

1,560

1,400

1,820

1,680

1,740 

1,700

1,940

1,780

1,560

1,400

1,550

1,440

1,550

1,580

1,500

1,420 

1,560

1,490 

g.400

2,030

1,450

829

806

794

568

1,2"60

1,250

1,100

1,310

1,140

43,857

1,410

0.920

1.06

Aug.

1,070 

888

912

1,040

950

829 

912

925

950

958

900

1,050

1,080

925

975

829

1,150 

1,050

1.200 

988

1,050

1,040

958

806

962

829

794

794

888

840

818

29,240

945

0.615

0.71

Sept.

720 

875

818

680

626

852 

864

700

700

750

652

740

592

690

794

710

760 

710

609 

626

710

680

750

740

710

772

552

700

988

760

21,850

728

0.475

0.55

Calendar year 1907: Max - 

Water year 1907-8: Max 16,400

Min - 

Min 552

Mean

Mean 5,670

Cfsm - In. - 

Cfsm 2.59 In. 52.58

Note. Stage-discharge relation affected by ice Jan. 10 to Mar. 24.

Discharge, in cubic 'feet per second, water year October 1908 to September 1909

Day

1

2

5

4

5

6

7

8

9

10

11

12 

15

14

15

16

17

18

19 

20

21

22

25

24

25

26

27

28

29

50

51

Total

Mean

Cfsm

In.

Oct.

818

750

864

912

794

750

750

710

760

772

840

670 

720

720

750

680

720

772

680 

710

626

660

609

584

550

660

1.170

1,080

1,050

1,080 

975

24,146

779

0.508

0.59

Nov.

760

818

700

750

69O

772

660

785

645

740

750

690 

760

912

1,560

1,190

988

829

750 

740

740

652

690

750

829

852

1,550

g.050

1,720 

1,550

27,568

919

0.599

0.67

Dec.

1,580

1,100

1,010

806

800

750

850

1,000

1.400

1,400

1,000

1,000 

1,000

1,100

1,100

1,100

1,100

1,000

950 

800

1,000

950

800

750

650

750

800

850

850 

800

800

29,646

956

0.624

0.72

Jan.

800

750

700

800

900

1,200

1,800

2,400

2,600

2,600

2,800

2,400 

1,800

1,500

1,400

1,500

1,000

900

850 

900

950

1,000

1,100

1,500

2,600

,400

,600

.600

,400

,000

,400

61,950

2,000

1.50

1.50

Feb.

2,800

2,200

2,000

1,700

1.600

1,800

5,000

5,000

5,200

5,200

2,800

5,000 

2,800

2,600

2,400

2,800

5,400

5,400

5,200 

5,400

4,600

6,500

8,000

9.000

8,500

8,000

7,500

7,000

115,400

4,050

2.64

2.75

Mar.

5,500

6.000

5,500

4,800

4,600

4,200

5,600

5,400

5,000

2,800

2,800

5,000 

5,000

2,800

2,800

2,600

2,400

2,200

2.000 

2,000

2,200

2,200

2,200

2,000

2,^00

2,600

2,600

2,600

2,600 

2,200

2,000

94,400

5,050

1.99

2.29

Apr.

2.200

2,600

5,400

5,740

4,450

5,180

10,500

12,500

11,900

11,200

9,270

5,210 

5,270

18,600

20.600

19,200

18,000

17,800

15,800 

17,700

16,000

15,800

12,500

10,900

8,800

9,600

7,680

8,250

6,950 

7,780

517,540

10,600

6.91

7.70

May

7,680

8,880

8,660

8,210

9,160

8,910

11,000

12,500

9,710

10,800

14,500

16.400 

12,000

11,500

8,700

8,080

8,420

9,200

8,080 

7,060

6,740

7,540

6,160

5,580

4,920

4,490

5,550

5,090

5,260

5,270 

2 , 670

254,500

8,210

5.56

6.17

June

5,360

2,590

5,090

2,400

2,890

5,700

4,510

4,400

5,880

5,580

4.860

5,460 

5,040

2,850

2,920

2,580

2,250

2,570

4,180 

2,940

2,540

2,450

1,990

1,960

1,820

1,740

1,580

1,510

1,600 

1.360

84,200

2,810

1.85

2.04

July

1,580

1,550

1,280

1,140

1,160

1,080

1,030

925

925

950

700

1,080 

1,060

1,190

1,200

1,200

1,190

1,030

1,110 

1,140

1,600

1.700

1,400

1,380

1,170

900

806

840

700

875

950

54,441

1,110

.0.724

0.84

Aug.

806

829

829

740

750

785

760

912

1,110

1,140

1,080

1,100 

1,100

1,070

1,040

1,170

1,280

1.530

1,060 

1,200

740

594

448

435

975

1,080

1,110

1,100

1,080 

1,060

1,060

29,751

960

0.626

0.72

Sept.

1.040

1,050

988

950

1,010

962

900

925

900

925

925

912 

925

900

900

888

900

888

760 

900

829

806

829

925

840

785

852

1,040

975 

975

27,582

915

0.596

0.66

Calendar year 1908: Max 16,400 Min 550 Mean 2,970 Cfsm 1.94 In. 26.53

Water year 1908-9: Max 20,800 Min 435 Mean 5,010 Cfsm 1.96 In. 26.65

Note.--Stage-discharge relation affected by ice Dec. 7 to Mar. 51. 

505690 O - 59 - 38
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS

Hudson River at Thurman, N. Y. Continued 

Discharge, in cubic feet per second, water year October 1909 to September 1910

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sin

In.

Oct.

1,040

1,080

1,020

962

875

740

740

700

938

875

925

875

720

584 

818

864

609

760

720

720

720

783

818

783

875

840

829

829

806 

750

745

25,343

818

0.534

0.61

Nov.

740

772

783

864

840

806

730

1,100

1,100

1,300

1,200

1,100

1,000

794 

806

816

950

1.400

1,100

900

750

850

850

794

645

1,280

1,170

1,100

1,110

1,100

28,748

958

0.625

0.70

Dec.

888

925

900

900

858

816

730

680

720

670

650

600

550

600 

550

600

650

650

650

600

600

600

600

550

550

550

550

550

550 

550

550

20,387

658

0.429

0.49

Jan.

600

600

600

600

600

600

600

600

600

600

600

600

600

600 

600

600

600

600

650

650

700

1,500

3,000

3,000

5.20O

3,000

2,800

2,600

2,200

1,700

1,500

37,100

1,200

0.783

0.90

Feb.

1,200

1,100

1,100

1,100

1,000

1,000

1,000

1,000

1,100

1,100

1,400

1,400

1,200

1,200 

1,300

1,200

1,200

1,300

1,200

1,200

1,200

1,300

1,300

1,100

1,100

1,000

1,000

2,200

33,500

1,200

0.783

0.81

Mar.

4,000

5,500

8,000

9,500

8,000

7,000

8,000

8,500

8,500

7,500

7,000

6,500

5,500

4,570 

4,290

4,010

3,480

3,230

2.990

2,990

2,990

3,780

4,570

5,740

7,610

11,200

10,100

10,200

11,700

13,800

15.200

215,950

6,970

4.55

5.24

Apr.

15,400

15,900

12,500

10,600

10,400

8,350

9,380

10,100

7,480

6,100

4,770

5,770

4,890

3,330 

3,710

4,260

2,800

2.570

5,060

10,500

5,950

5,180

6,220

5,210

5,040

4,870

4,710

4,550

4,390

4,230

204,220

6,810

4.44

4.95

May

4,070

5,830

3,280

5,000

4,660

5,470

4,690

5,440

4,720

5,060

4,980

3,690

3,160

3,160 

3,090

2,470

2,220

2,310

1,940

1.820

2,380

2,220

2,450

2,520

3,280

6.040

6,010

5,470

4,690

4,740

5,740

122,600

3,950

2.58

2.97

June

6,220

5,740

4,860

4,290

3,850

4,980

6,190

6.510

6,040

5,920

5,060

5,090

4,770

4,210 

3,770

3,500

5,500

5,280

4,550

3,180

2,940

2,640

2,290

1,920

1,780

1,620

1,560

1,550

1,510 

1.420

113,940

5,800

2.48

2.77

July

1.260

864

720

700

1,130

988

950

900

750

643

710

690

962

864 

829

710

643

875

875

852

829

806

772

600

772

750

660

643

900 

794

1,000

25,401

819

0.534

0.62

Aug.

1,000

1,080

829

1,380

1,720

1,450

1,140

1,030

852

740

1,060

2,470

2,050

5.560 

1,230

1,400

1,440

1,420

1,400

1,130

980

829

975

975

975

900

829

652

900 

875

840

57,911

1,220

0.796

0.92

Sept.

1,160

1,490

1,510

1,450

1,600

1,660

1,940

2,580

1,920

1,820

1,550

1,470

1,550

1,220 

1,060

962

988

1,000

1,110

950

950

1,050

958

962

1,070

1,160

1,250

2.450

2,270

1,960

42,550

1,420

0.926

1.03

Calendar year 1909: Max 20,800 Min 435 Mean 2,990 Cfsm 1.95 In. 26.47

Water year 1909-10: Max 15,900 Min 550 Mean 2,490 Cfsm 1.62 In. 22.01

Note. Stage-discharge relation affected by ice Dec. 22 to Mar. 31.
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 583

West Branch Sacandaga River at Blackbridge , near Wells, N. Y.

Location. --Lat 43°22'10", long 74°19'30", on upstream side of highway bridge known as 

Blackbridge , 2 miles upstream from East Branch Sacandaga River and 3 miles west of 

Wells, Hamilton County.

Drainage area.--210 sq mi (revised).

Records available. March 1911 to September 1916 (discontinued). Monthly discharge only,

January to March 1914.

Gage. Chain gage read twice daily. Altitude of gage is 1,000 ft (from topographic map). 

Average discharge. 5 years (1911-16), 491 cfs.

Extremes. 1911-12: Maximum discharge observed during water year, 4,080 cfs May 6 (gage 

height, 8.2 ft); minimim observed, 36 cfs many days in July and August (gage height, 

2.80 ft) .

1912-13: Maximum discharge during water year, 14,500 cfs (revised) Mar. 27 (gage 

height, 13.0 ft, from floodmarks), from rating curve extended above 1,650 cfs by logarithmic plotting; minimum observed, 10 cfs Sept. 17, 21 (gage height, 2.30 ft). 

Mar. 27, 1913 (gage height,

(revised

1911-16: Maximum discharge, 14,500 cfs (revised.

13.0 ft, from floodmarks), from rating curve extended above 1,650 cfs by logarithmic 

plotting; minimum observed, 10 cfs (revised) Sept. 17, 21, 1913 (gage height, 2.30 ft).

Revisions. Figures of maximum discharge for the water years 1913 and 1915 have been 

revised to 14,500 cfs Mar. 27, 1913 (gage height, 13.0 ft, from high-water marks) and 

4,530 cfs Aug. 22, 1915 (gage height, 8.50 ft), superseding those published in WSP 351 

and 401 . The figure of minimum discharge observed for the water year 1913 has been 

revised to 10 cfs Sept. 17, 21 (gage height, 2.30 ft), superseding those published in 

WSP 381.

Remarks. --Plow affected slightly by logging operations.

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

1911-15, superseding those published in WSP 321, 351, 381, and 401, are given herewith. 

Complete tables of daily discharge are given for the water years 1912 and 1913 but 

only revised discharges are given for the other water years.

Date

1911

Apr. 7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

May 1

Discharge

1,340

1,340

1,070

1,OOO

900

1,040

1,180

1,580

1,660

1,660

1,580

1,500

1,500

1,420

1,580

1,500

1,420

1,420

1,340

1,940

2,230

2,990

2,990

2,640

2,130

Date

1911-Con.

May 2

3

4

5

6

7

8

17

20

23

24

25

26

Aug. 6

14

15

25

1913

Oct. 1

15

16

21

25

26

Discharge

3,120

1,840

1,760

1,660

1,260

868

1,000

1,260

965

965

835

868

835

94

32

25

31

30

27

'93226

1,040

1,140

Date

1913-Con.

Oct. 27

Nov. 9

10

11

12

13

14

15

20

21

22

23

1914

Dec. 19

20

21

22

23

24

25

26

27

28

29

Discharge

1,000

1,760

1,940

1,500

1,260

932

9OO

1,100

965

1,040

835

1,070

110

110

120

130

140

150

150

150

150

140

130

Date

1914-Con.

Dec. 30

31

1915

Jan. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Discharge

120

100

100

100

100

100

loo

loo

400

800

700

650

6OO

500

450

400

400

380

380

950

Month

April 1911.....................

May. ...........................

Water year 1913-14. ..........

Water year 1914-15. ..........

Maximum

347

5,140

5,140

3,O8O

Minimum

25

26

30

40

Mean

78.4

t439

t379

4O8

Per square 

mile

.373

2.09

1.80

1.94

Runoff in 

inches

.43

28.40

24.47

26.36

t Partly estimated.
584 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

West Branch Sacandaga River at Blackbridge, near Wells, N. Y. Continued 

Discharge, in cubic feet per second, water year October 1911 to September 1912

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

Z7

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

218" 189

251

464

604

517

414

326

517

545

490

391

326

347

490

218

204

517 

1,000

965

965

1,070

1,540

1,100

1,070

900

868

604

517 

414

464

18,305

590

2.81

3.24

Nov.

439

490

464

391

439

347

545

965

932

932

868

900

1,000

932

667

545

368

900 

1.100

932

868

545

439

634

545

391

391

391

604 

700

19,664

655

3.12

3.48

Dec.

667

604

490

439

459

591

326" 326

368

517

667

1,420

1,940

1,260

1,420

1,260

1,260

1,260 

1,000

965

802

667

2.330

1,260

1,140

1,180

1,260

604

802 

667

802

28,533

920

4.38

5.05

Jan.

667

700

573

517

414

414

391

306

251

234

269

204

189

163

234

204

163 m240

260

260

240

220

220

200

180

160

150 

150

150

8,687

280

1.33

1.54

Feb.

150

160

150

160

150

150

150

150

150

150

160

160

150

150

160

160

150

TSo- 140

iso

180

280

240

220

200

200

200

200

200

4,960

171

0.814

0.88

Mar.

190

180

170

160

150

140

150

140

150

160

140

150

170

200

320

550

550

650 

650

600

600

550

500

460

420

360

320

420

700 

950

1,540

12,170

393

1.87

2.16

Apr.

1,340

1,420

1,180

1,070

1.040

1,580

2,640

2,330

2,040

1,760

1,500

1,260

1,100

1,420

1,660

2,750

2,870

5.120 

2,990

2,430

2,430

2,640

2,530

2,040

1,940

1,940

1,940

1,660

1,500

1,420

57,540

1,920

9.14

10.19

May

1,260

1,070

900

900

700

1,760

667

700

604

517

932

735

802

932

932

1,040

1,340

1,260 

1,040

1,260

1.940

1,940

1,260

1,500

1,340

1,100

965

900

835 

770

1,580

33,481

1,080

5.14

5.93

June

2.640

1,070

545

667

464

414

347

326

251

218

204

176

152

140

124

130

132

120 

102

94

86

75

72

65

58

58

46

48

46

46

8,916

297

1.41

1.58

July

40

56

56

57

37

38

38

38

38

36

46

46

46

li47

47

46

46 

40

41

40

40

38

47

46

42

38

38

36

36 

44

1,303

42.0

0.200

0.23

Aug.

36

36

44

44

36

36

38

36

36

36

38

38

38

38

38

38

37

40 

36

36

40

40

38

41

36

41

36

42

41 

36

36

1,182

38.1

0.181

0.21

Sept.

40

Tz

111

106

106

86

79

104

94

52

51

111

72

52

51

234

176

122 

176

189

140

124

130

189

368

517

4l4

287

251

234

4,739

158

0.752

0.84

Calendar year 1911: Max - Min - Mean - Cfsm - In. -

Water year 1911-12: Max 3,120 Min 36 Mean 545 Cfsm 2.60 In. 35.33

Note. Stage-discharge relation affected by ice Jan. 20 to Mar. 31 (no gage-height record; discharge estimated on basis of records for other stations in the Sacandaga River basin).

Discharge, in cubic feet per second, water year October 1912 to September 1913

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

Oct.

176

234

251

218

218

189

189

152

152

140

163

189

204

189

163

152

140

152

140 

573

326

326

306

152

1.420

1,100

1,040

900

802

700 

517

11,573

373

1.78

2.05

Nov.

464

517

414

368

326

306

604

2.150 

1,660

1,500

1,420

1,260

1,100

1,040

952

835

770

700

634 

604

517

464

414

414

368

326

414

306

251

2_34_

21,292

710

3.38

3.77

Dec.

218

234

1.420

1,420

1,260

1,260

1,260

1,040 

932

802

770

667

517

391

414

368

414

326

634 

667

700

573

517

464

414

347

391

287

269 

306

634

19,916

642

3.06

3.53

Jan.

517

464

700

1,260

1,070

1,040

1,260

1,580 

1,420

1,340

1,180

1,340

1,180

1,100

965

900

965

1,760

1,940 

1,760

2.750

1,500

1,420

1,340

1,940

1,140

1,070

1,140

1,100

667

573

38,381

1,240

5.90

6.80

Feb.

490

454

439

414

368

347

326

251

218

189

163

136

130

130

130

130

130

130

m

189

189

347

300

280

260

240

220

-

6,897

246

1.17

1.22

Mar.

220

220

220

200

200

190

T90

190 

280

287

251

234

218

932

1,040

1,760

1,180

1,140

1,040 

1,420

1,760

2,530

1,940

1,840

5,330

6,380

9.250

4,380

3,380

2 ,870 

2 990

54,062

1,740

8.29

9.57

Apr.

2.530

1,760

1,660

1,500

1,840

1,580

1,000

1,140 

1,040

932

1,070

1,100

932

634

573

464

368

347

545 

634

439

414

368

326

368

347

326

287

490 

464

25,478

849

4.04

4.51

May

414

545

700

347

667

735

251

573 

176

176

368" 122

634

573

490

326

368

132

439 

251

218

251

1,070

1,180

1,180

965

634

1,580

1*340

1,180

19,465

628

2.99

3.45

June

770

700

634

573

545

439

439

287 

368

326

368

347

269

152

72

130

94

69

56 

136

86

111

306

251

251

251

368

391

111 

306

9,206

307

1.46

1.63

July

65

65

72

44

36

44

36

34

75- 19

89

75

83

lo- 94

ss

24

28

27 

34

30

27

20

38

48

46

37

36

72

51

44

1,471

47.5

0.226

0.26

Aug.

36

86

72

Si44

34

33

30 

28

23

24

26

28

23

22

20

18

23

21 

16

13

13

18

19

17

14

23

23

32 

29

21

923

29.8

0.142

0.16

Sept.

21

17

17

17

15

15

14

13

14

13

12

12

11

11

11

11

10

T?

13 

12

10

391

152

140

86

72

72

38

32

30

1,294

43.1

0.205

0.23

Calendar year 1912: Max 3,120 Min 36 Mean 508 Cfsm 2.42 In. 32.91

Water year 1912-13: Max 9,250 Min 10 Mean 575 Cfsm 2.74 In. 37.18

Note. Stage-discharge relation affected by ice Feb. 13 to Mar. 10 (no gage-height record; discharge estimated on basis of records for other stations in the Sacandaga River basin).
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 585

Sacandaga River at Northville, N. Y.

Location. Lat 43°14'00", long 74°11'20", on left bank three-quarters of a mile upstream 

from highway bridge at Northville, Fulton County, 1 mile downstream from East Stony 

Creek, and 2 miles downstream from West Stony Creek.

Drainage area. 712 sq ml (revised).

Records available. August 1907 to November 1910 (discontinued).

Gage. Chain gage read once dally. Altitude of gage Is 750 ft (from topographic map). 

Prior to Nov. 6, 1907, staff gage at site 300 ft upstream.

Extremes. The figures of maximum and minimum observed discharges for the water years 

1908-10 are given In the following table:

Water 

year

1908 

1909 

1910

Maximum

Date

May 1, 1908 

Apr. 14, 1909 

Mar. 31, 1910

Discharge 

(cfs)

t23,100 

t23,000 

t!4,100

Gage height 

(feet)

alO.9 

bll.O 

8.48

Minimum

Date

Sept. 20-23, 1908 

Sept. 22, 1909 

Oct. 11, 1909

Discharge 

(cfs)

36 

32 

69

Gage height 

(feet)

0.63 

.60 

.82

t Not previously published.

a From temporary reference gage.

b From graph based on gage readings.

1907-10: Maximum discharge observed, 23,100 cfs May 1, 1908 (gage height, 10.9 ft, 

.from temporary reference-gage reading); maximum gage height, about 11.0 ft Apr. 14, 

3909, from graph based on gage readings; minimum discharge observed, 32 cfs Sept. 22, 

1909 (gage height, 0.60 ft).

Revisions. Revised figures of discharge, In cubic feet per second, for the water years 

1908-11 (complete dally tables), superseding those published In WSP 241, 261, and 281, 

are given herein.

Discharge, In cubic feet per second, water year October 1907 to September 1908

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,380 

883

682

759

1,920

1,320

1,070

1,980

5,830

3,200

2,410

3,200

2,640

2,120

1,730

1,380

1,220

1,080

972

900

883

840

759

720

682

646

632

7.000

5,830

4,420

3,040

62,128

2,000

2.81

3.24

Nov.

2,340 

1,980

7,000

5,830

4,460

3,910

18 . 400

13 500

6l 450

4,610

3,880

3,200

2,350

2,350

1,960

1,560

1,470

1,360

1,340

1,250

1,270

1,470

2,090

1,370

1,360

1,290

1,180

1,120

1,140

972

102,462

3,420

4.80

5.35

Dec.

883 

900

849

815

800

800

750

750

750

6,490

7.450

4,610

3,040

2,600

2,200

1,900

1,600

1,500

1,400

1,300

1,200

1,200

1,900

2,800

4,600

4,050

3,200

3,040

3,200

3,040

5,000

74,617

2,410

3.38

3.90

Jan.

4.200 

4,000

3,200

2,800

2,200

1,700

1,400

1,200

1,200

1,100

1,000

1,100

1,300

1,200

1,100

1,000

900

900

850

800

750

700

650

650

600

500

lofr

750

750

700

650

40,450

1,300

1.83

2.11

Feb.

650 

650

600

550

550

550

550

500

500

500

500

500

500

600

1,600

4,400

5.500

4,800

4,400

3,800

3,400

3,000

2,600

2,400

2,200

1,800

1,700

1,500

1,400

52,200

1,800

2.53

2.73

Mar.

1,200 

1,200

1,100

1,100

1,000

1,000

850

750

700

930

1,100

1,600

2,000

2,400

2,600

2,600

2,400

2,200

2,200

2,000

2,200

2,200

2,400

2,800

3,400

3,800

4,600

6,500

9,000

9.500

8, 500

85,800

2,770

3.89

4.48

Apr.

6,800 

5,200

4,300

3,800

2.500

3,200

4,600

5,800

12,800

10,500

8,600

7,800

6,800

6,100

6,100

6,100

5,800

5,200

6,800

4,300

5,200

4,000

4,000

10,500

11,500

11,500

11,500

12,800

11,800

11,500

217,400

7,250

10.18

11.35

May

22,000 

13,000

10,000

7,500

5,500

4,800

5,500

10,000

7,000

4,800

4,200

3,400

3,400

4,200

5,500

5,000

3,400

3,200

2,800

1,900

2,400

3,200

2,800

2,600

1,900

1,800

1,500

900

1,900

1,800

1,900

149,800

4,830

6.78

7.82

June

1.600 

800

850

900

800

1,100

800

850

550

600

600

460

420

360

400

1,000

550

420

340

800

600

550

460

440

360

300

245

225

213

205

17,798

593

0.833

0.93

July

205 

188

177

177

170

177

188

245

254

198

177

170

112

134

140

188

188

281

799

520

320

340

315

245

213

245

225

198

315

205

198

7,507

242

0.340

0.39

Aug.

140 

126

118

112

126

155

188

188

170

146

140

146

140

126

112

100

100

126

149

180

140

100

94

107

100

65

76

72

72

65

65

3,744

121

0.170

0.20

Sept.

65 

61

61

65

65

56

61

61

58

56

49

49

49

49

41

41

41

41

41

36

36

36

36

41

41

41

41

41

229

330

1,918

63.9

0.090

0.10

Calendar year 1907: Max - Mln - Mean - Cfsm - In. -

Water year 1907-8 : Max 22,000 Min 36 Mean 2,229 Cfsm 3.13 In. 42.60

Note. Stage-discharge relation affected by Ice Dec. 5-9, 15-20, 22-23, Jan. 1 to Apr. 5. Doubtful or no gage-height record Apr. 6 to June 26; discharge estimated on basis of observer's temporary 

reference gage readings and records for other stations In the Sacandaga River basin.
586 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Sacandaga River at Northville, N. Y.--Continued 

Discharge, In cubic feet per second, water year October 1908 to September 1909

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

191

191

229

164

134

129 

174

102

102

102

129

229

191

158

129

129

112

102

102

102

90

90

90

80

102

102

527

632

783

632

431

6,460

208

0.292

0.34

Nov.

281

209

209

191

174

158

T74

184

167

164

158

494

494

373

346

272

295

295

272

295

295

320

384

330

494

1,000

1,170

866

639

954

11,657

389

0.546

0.61

Dee.

507

500

440

440

360

360 

460

600

600

650

700

750

750

650

650

550

550

480

460

460

460

460

440

440

440

420

400

380

380

360

360

15,457

499

0.701

0.81

Jan.

360

360

360

460

1,600

3.200 

2,400

1,800

1,500

1,300

1,200

1,000

900

850

800

750

700

700

700

650

650

650

650

1,500

2,400

2,400

2,200

1,900

1,700

1,500

1,300

38,440

1,240

1.74

2.01

Feb.

1,100

1,100

1,000

950

900

900 

2,600

2,200

1,900

2,200

2,200

2,200

1,900

1,800

1,800

1,800

1,600

1,600

4,000

6,500

6,000

4,600

3,800

7.000

6,000

5,000

4,800

5,000

_

82,450

2,940

4.13

4.31

Mar.

3.400

2,600

2,600

1,400

1,300

1,300 

1,300

1,300

1,200

1,200

1,100

1,100

1,000

1,000

950

900

850

800

750

800

800

950

1,100

1,600

2,400

2,400

2,200

2,400

2,600

2,600

3,000

48,900

1,580

2.22

2.55

Apr.

3,900

3,860

4,130

4,040

3.520

4,600 

11,200

15,200

11,200

9,350

5,520

4,080

5,410

20,500

21,100

14,300

11,500

11,200

11,600

21.500

11,100

11,600

10,100

7,710

7,270

6,750

6,020

5,800

5,520

6,750

276,330

9,210

12.94

14.43

May

5,950

7,760

5,730

6,700

5,620

5,620 

5,370

5,160

4,220

5,160

10.200

8,010

5,880

5,100

3,900

3,720

4,180

3,720

3,360

3,360

2,890

2,440

2,150

1,910

1,820

1,750

1.510

1,820

1,910

2 150

1, 820

130,890

4,220

5.93

6.84

June

1,400

1,340

1,100

1,040

1,040

2.910 

2,120

1,630

1,290

1,080

2,440

1,980

1,490

2,120

1,730

1,400

900

1,730

1,940

1,630

1,290

832

735

660

625

590

468

425

368

315

38,618

1,290

1.81

2.02

July

245

245

281

315

254

213 

205

213

155

140

140

140

134

112

TT2

146

146

146

140

112

126

140

140

455

395

300

245

170

155

126

126

5,972

193

0.271

0.31

Aug.

112

100

112

92

87

87

100

92

83

69

65

87

65

61

11

76

883

590

660

395

290

213

170

164

126

134

112

112

61

76

5,408

174

0.244

0.28

Sept.

83

69

65

65

76

83 

83

65

65

69

87

65

65

61

65

76

65

61

56

61

51

32

47

87

83

65

65

188

Tl2

140

2,255

75.2

0.106

0.12

Calendar year 1908: Max 22,000 Mln 36 Mean 1,670 Cfsm 2.35 In. 31.87

Water year 1908-9: Max 21,500 Mln 32 Mean 1,820 Cfsm 2.56 In. 34.63

Note. Stage-discharge relation affected by ice Dec. 1 to Mar. 31.

Discharge, In cubic feet per second, water year October 1909 to September 1910

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

112

107

112

92

87

90

107

83

100

83

69

76

87

90

87

83

140

170

158

158

140

330

290

315

315

290

281

254

205

188

155

4,854

157

0.221

0.25

Nov.

140

155

188

170

140

140

112

TsT

140

155

146

140

140

140

140

140

140

155

170

205

225

245

340

380

440

480

460

440

420

400

6,820

227

0.319

0.36

Dee.

380

360

320

300

280

260

260

260

260

260

260

260

260

300

320

320

300

300

300

300

300

300

300

300

300

300

300

300

300

300

300

9,160

295

0.414

0.48

Jan.

240

240

240

240

240

240

240

240

240

240

240

240

240

240

240

240

240

240

240

500

850

2,400

3.200

2,400

2,000

1,600

1,400

1,300

1,200

1,100

1,100

23,610

762

1.07

1.23

Feb.

900

900

850

800

700

600

550

550

550

500

480

460

460

460

460

460

420

420

440

460

600

650

1,000

1,000

1,000

1,100

2,200

6.500

25,470

910

1.28

1.33

Calendar year 1909: Max 21,500 Min 32

Mar.

10,000

10,000

9,000

8,500

7,500

6,500

5,500

5,000

5,000

4,800

4,400

4,000

3,800

3,600

3,400

3,200

2,800

2,400

2,000

1,700

2,340

2,760

3,530

4,390

9,750

11,900

7,440

7,200

11,300

12,300

14.100

190,110

6,130

8.61

9.93

Apr.

11.200

10,400

7,050

5,710

6,800

6,010

7,080

4,570

3,700

3,210

2,840

1,670

1,530

1,410

1,360

1.300

1,410

4,480

6,840

6,400

4,450

2,840

2,550

4,570

5,960

3,180

4,660

5,900

4,520

4,460

138,060

4,600

6.46

7.21

May

4,390

3,090

3,280

4,96O

4,720

3,500

2,730

2,620

2,170

1,820

1,670

1,480

1,300

1,390

1,390

1,320

1,070

1,190

1,330

1,650

2,340

2,270

2,200

1,800

1,930

6.070

5,750

4,000

2,480

3,060

2, 620

81,590

2,630

3.69

4.26

June

2,450

2,760

2,480

2,620

2,760

6.620

5,160

4,660

4,210

3,180

3,060

3,370

2,620

1,930

1,830

2,000

2,170

2,270

2,340

1,650

1,300

1,090

829

684

643

602

562

523

436

424

67,233

2,240

3.15

3.51

July

360

326

326

326

291

223

226

307

235

229

223

214

220

205

191

200

214

208

200

197

200

205

214

220

226

214

220

412

291

235

223

7.58J.

245

0.344

0.40

Aug.

400

412

424

901

1.070

284

291

307

370

424

901

546

424

488

406

395

370

346

395

370

360

326

259

259

259

278

266

275

259

214

275

12,554

405

0.569

0.66

Sept.

326

307

412

424

412

454

424

412

370

326

291

275

259

284

291

275

326

294

253

200

223

229

326

330

297

d460

d2,000

d2,200

dl,900

dl,500

16,080

536

0.753

0.84

Mean 1,780 Cfsm 2.50 In. 33.96

Water year 1909-10: Max 14,100 Min 69 Mean 1,600 Cfsm 2.25 In. 30.46

d Doubtful gage-height record; discharge estimated on basis of other records in the Sacandaga River 

basin.

Note.--Stage-discharge relation affected by ice Nov. 23 to Mar. 23.
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Sacandaga River at Northville, N. Y. Continued

Discharge, in cubic feet per second, October to November 1910

587

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

2.620 

2,480

1,650

1,300

1,740

1,300

1,040

488

1,307?

1,420

1,300

1,480

1,300

1,330

1,390

1,280

1,250

1,220

1,170

1,190

1,300

1,540

2,620

2,570

2,450

2,480

2,550

2,490

2,450 

1,930

1 j Z8O

51,908

1,670

2.35

2.71

Nov.

1,090 

1.140

1,070

424

360

412

424

578

562

488

424

412

424

742

709

709

794

811

855

726

709

684

726

709

667

684

643

635

602 

643

19,856

662

0.930

1.04

Dec.

Calendar year : Max

Jan. Feb.

Min

Mar. Apr.

Mean

May June July Aug. Sept.

Cfsm In.

Water year : Max Mln Mean Cfsm In.
588 REVISIONS OP RECORDS FOR DISCONTINUED STATIONS

Hoosic River at Buskirk, N. Y.

Location. Lat 42°57'30", long 73°26'00", near center of span on upstream side of highway 

bridge at Buskirk, Rensselaer County.

Drainage area.--577 sq mi (revised).

Records available. September 1903 to September 1909 (discontinued). Monthly discharge 

only, January to March 1904, January to March 1905, January to September 1909.

Gage. Chain gage. Altitude of gage is 330 ft (from topographic map). 

Average discharge. 6 years, 1,013 cfs.

Extremes. 1903-9: Maximum discharge, 21,000 cfs Feb. 20, 1909 (gage height, 15.4 ft), 

from rating curve extended above 6,100 cfs by logarithmic plotting; minimum daily, 

24 cfs Sept. 19, 1909, determined at site 5 miles upstream.

Remarks. Diurnal fluctuation caused by mills above station. Stage-discharge relation 

affected by variable backwater from dam at Johnsonville after Apr. 13, 1909.

Revisions.--Revised figures of discharge, in cubic feet per second, for some winter 

periods in the water years 1904-9, superseding those published in WSP 97, 125, 166, 

202, and 241, are given herewith:

Date

1903 

Nov. 27 

28 

29 

30 

Dec. 1 

9 

10 

11 

14 

15 

16 

17 

18 

19 

20 

27 

28 

29 

30 

31

1904 

Nov. 27 

28 

29 

Dec. 4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15

Discharge

420 

380 

360 

360 

380 

340 

320 

300 

480 

460 

420 

400 

380 

380 

500 

750 

700 

700 

650 

600

360 

300 

360 

420 

420 

400 

400 

380 

380 

380 

380 

380 

380 

380 

360

Date

1904 -Con. 

Dec. 16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27

1906 

Har. 1 

2 

3 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

Nov. 12 

13 

14 

Dec. 3 

4 

5 

6

Discharge

360 

360 

360 

360 

360 

360 

360 

360 

360 

360 

360 

700

600 

460 

650 

550 

500 

480 

460 

440 

420 

420 

400 

400 

400 

400 

380 

380 

704 

553 

524 

500 

500 

500 

500

Month

No 

De

No 

De

Ha

No 

De

Ja 

Ha

Ja 

Fe

De

veniber 190:

Water year 

veniber 1904

3alendar ye 

Water year

rch 1906

S... ...............

1903-4............

1904-5............

vember 190( 

ceniber

nuary 1907

iTater year 

Calendar ye

nuary 1908

1906-7............

ar 1907.. .........

 later year

ceniber 1906 

Calendar ye

1907-8............

..................

ar 1908...........

Date

1906-Con. 

Dec. 7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

1907 

Jan. 17 

18 

19 

20 

21 

22 

23 

24 

25 

26

Maximum

1,850 

4,540 

13,700

756 

4,890

13,700 

10,600

7,710 

9,810

2,380 

1,100 

9,810

4,600 

5,180 

5,180 

9,070

3,640 

12,400 

12,400

803 

12,400

Discharge

1,100 

900 

800 

700 

650 

650 

600 

600 

600 

1,100 

900 

800 

700 

700 

750 

750 

700 

700 

650 

650 

600 

600 

600 

650 

900

550 

550 

500 

4,600 

2,400 

1,100 

950 

850 

800 

750

Minimum

339

300 

158

300 

360 

158 

130

380

100

238 

500 

100

500 

440

106 

123

480 

500 

90

85 

85

Date

1907-Con. 

Jan. 27 

28 

29 

30 

31 

Har. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14

1908 

Jan. 23 

24 

25 

28 

29 

30 

31 

Feb. 1 

2 

3 

4 

5 

6 

7 

8 

9

Mean

603 

706 

tl,060

516 

629

tl,040 

tl,040

1,260 

1,030

648 

695 

951

1,550 

1,510 

t854 

1-1,140

1,010 

1,390 

1,220

240 

846

Discharge

700 

650 

650 

600 

600 

440 

440 

900 

850 

750 

700 

650 

650 

600 

600 

600 

600 

1,000 

1,600

850 

600 

480 

750 

700 

650 

650 

600 

600 

600 

550 

550 

550 

550 

500 

500

Date

1908-Con. 

Feb. 10 

11 

12 

13 

14 

15 

22 

23 

24 

25 

Dec. 3 

4 

5 

6 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

Per square 

mile

1.05 

1.22 

1.83

.894 

1.09 

1.80 

1.81

2.18 

1.79

1.12 

1.20 

1.65

2.69 

2.62 

1.48 

1.98

1.75 

2.41 

2.11

.416 

1.47

Discharge

500 

500 

500 

500 

700 

12,400 

850 

800 

750 

700 

120 

110 

100 

100 

360 

300 

240 

200 

300 

803 

736 

412 

300 

260 

220 

190 

160 

140 

130 

110 

100 

95 

95 

90 

85 

85

Runoff In 

Inches

1.17 

1.41 

24.92

1.00 

1.26 

24.54 

24.56

2.51 

24.14

1.25 

1.39 

22.35

3.10 

3.03 

20.10 

26.91

2.01 

2.60 

28.89

.48 

19.97

t Partly estimated.
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 589

Catskill Creek at South Cairo, N. Y.

Location. Lat 42°16'40", long 73°57'30", near right bank on downstream side of highway

bridge at South Cairo, Greene County. 

Drainage area.--270 sq mi (revised). 

Records available.--July 1901 to June 1907 (monthly discharge only January 1906 to June

1907), discontinued.

Gage.--Chain gage read twice daily. Altitude of gage is 170 ft (from topographic map). 

Average discharge.--5 years (1901-6), 401 cfs. 

Extremes.--The Tigures of maximum and minimum c

given in the following table:

discharges for the water years 1903-5 are

Water 

year

1903 

1904 

1905

Maximum

Date

Mar. 23, 1903 

Oct. 9, 1903 

Mar. 25, 1905

Discharge 

(cfs)

$10,100 

$25,000 

*7,260

Gage height 

(feet)

til. 9 

t21.0 

10.27

Minimum

Date

(a) 

Sept. 3, 1904 

July 18,19, 23, 24, 

27-29, 1905

Discharge 

(cfs)

17 

10 

4

Gage height 

(feet)

2.25 

2.1 

1.84

t From graph based on gage readings.

t Not previously published.

a Several days in May and June 1903.

1901-7: Maximum discharge, 25,000 cfs Oct. 9, 1903 (gage height, 21.0 ft, from graph 

based on gage readings), from rating curve extended above 6,000 cfs; minimum observed, 

4 cfs July 18, 19, 23, 24, 27-29, 1905 (gage height, 1.84 ft).

Flood of Oct. 9, 1903, reported by local residents as highest in 30 years. 

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

1902-6, superseding those published in WSP 97, 125, and 166, are given herein. Complete daily tables are given for the water years 1903-5 but only revised discharges are 

given for the other water years.

Date

1901

Dec. 14

21

22

23

24

1902

Jan. 8

22

29

30

31

Feb. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 -

20

21

22

23

24

25

26

27

28

Discharge

2,485

220

200

170

150

243

6,545

150

140

220

360

700

946

522

300

240

180

140

140

150

200

130

100

90

70

65

70

100

120

110

90

70

55

46

55

65

420

3,800

Date

1902-Con.

Mar. 1

2

3

4

5

12

13

14

16

17

18

Apr. 9

10

11

12

May 18

July 21

22

23

24

25

26

Sept. 28

29

30

1905

Oct. 1

2

3

4

5

6

7

8

9

10

11

12

13

Discharge

10,700

6,330

2,210

2,320

2,100

5,330

5,030

3,090

2,980

5,780

2,375

9,670

4,055

2,518

1,980

68

2,815

2,000

2,020

1,682

2,628

2,925

2,110

8,080

2,760

30

27

43

79

65

45

34

34

27

27

30

710

335

Date

1905 -Con.

Oct. 14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Nov. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

Discharge

204

148

113

99

82

193

204

193

162

130

130

104

87

63

63

63

63

59

53

53

48

48

43

48

43

59

51

45

43

43

43

34

37

37

36

34

34

34

33

33

Date

1905-Con.

Nov. 23

24

25

26

27

28

29

30

Dec. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge

33

27

20

20

20

27

38

109

104

68

450

2,210

318

246

215

189

189

172

132

113

126

104

85

80

72

68

72

65

276

318

220

190

182

162

121

95

211

240

148

Month

December 1901, ..................

April...........................

May.............................

July. ...........................

Water year 1901-2 .............

November. .......................

Water year 1905-6.. ...........

Maximum

11,200

5,495

Minimum

37

7

Mean

537

t282

Per square 

mile

1 23

1.99

1.04

Runoff In 

Inches

26.98

14.19

t Partly estimated.
590 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Catsklll Creek at South Cairo, N. Y.--Continued 

Discharge, In cubic feet per second, water year October 1902 to September 1903

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

1.682 

1,230

946

712

602

563

498

415

328

274

283

873

602

425

377

319

283

252

243

252

222

207

182 

192

182

152

167

1,465

1,006

657

522

16,113

520

1.93

2.22

Nov.

449 

377

328

289

274

252

237

222

198

167

152

167

192

158

152

136

136

123

120

117

120

104

104 

M

104

120

258

367

243

192

5,954

199

0.733

0.82

Dec.

182 192"

243

391

304

304

280

243

213

328

498

367

304

304

289

563

1,850

1,085

824

712

2,050

4.510

2,210 

903

741

574

473

401

367

289

258

22,052

711

2.63

3.04

Jan.

228 

252

473

885

629

459

343

304

182

152

152

182

144

144

152

141

152

125

85

109

401

657

522 

522

367

182

176

192

377

1.610

741

11,040

356

1.32

1.52

Feb.

546 

449

459

1,067

915

512

425

304

274

258

295

1,285

674

459

377

319

213

158

222

182

222

198

131 

152

131

123

112

3.460

-

13,922

497

1.84

1.92

Mar.

2,617 

1,006

685

657

602

574

685

1,128

2,485

1,750

3,090

1,655

2,050

946

780

685

557

507

449

449

401

2,155

m1,442

976

602

602

574

507

2,705

41,743

1,347

4.99

5.75

Apr.

1,324 

854

712

685

546

522

483

602

1,006

657

522

425

401

449

1,402

1.655

927

628

520

430

378

342

318 

318

270

240

204

176

166

142

17,304

577

2.14

2.38

May

126 

113

108

95

95

87

79

72

65

61

53

53

53

53

53

48

43

43

43

38

34

34

30 

27

27

27

27

21

20

20

17

1,665

54

0.200

0.23

June

17 

17

17

17

17

17

17

28

24

20

21

1,440

1,175

520

1,175

1,010

545

472

352

390

2,650

1,800

1,416 

2.960

1,440

915

600

430

450

495

20,467

682

2.53

2.82

July

390 285"

211

176

117

146

104

106

90

81

51

49

46

41

39

35

75

38

53

55

59

53

53 

53

43

38

34

30

33

51

65

2,700

87

0.322

0.37

Aug.

51 

48

41

41

228

276

220

176

128

113

95

92

82

63

55

53

48

43

43

152

87

68

59 

48

55

162

132

113

1,360

3 200 3)090

10,422

336

1.24

1.44

Calendar year 1902: Max 10,700 Mln 37 Mean 587 Cfsm 2.17 In. 29.50

Sept.

1.360 

795

572

418

342

276

215

189

168

136

128

113

95

82

79

65

99

162

128

92

68

65

59 

53

48

43

43

38

38

38

6,007

200

0.741

0.83

Water year 1902-3: Max 5,255 Mln 17 Mean 464 Cfsm 1.72 In. 23.34

Discharge, in cubic feet per second, water year October 1903 to September 1904

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

38

38

38

34

34

38

38

117

16.200

8,710

3,040

1,980

1,320

1,010

813

699

655 

754

611

556

505

450

442

442

402

378

328

300

285 

270

270

40,795

1,316

4.87

5.62

Nov.

235

211

204

193

246

294

255

211

197

193

182

172

172

172

168

152

62?

459

418

328

294

270

318

246

197

189

168

152 

140

7,818

261

0.967

1.08

Dec.

130

120

110

100

110

110

12O

110

100

100

85

80

240

400

300

170

150 

130

120

1,100

1.540

600

589

472

495

450

460

440

440 

400

400

10,171

328

1.21

1.40

Jan.

340

280

300

300

300

280

240

220

220

180

170

160

160

150

160

140

140 

120

110

100

100

110

550

984

550

460

440

420

380

420

500

8,984

290

1.07

1.24

Feb.

440

380

340

300

300

320

442

2.520

550

420

340

280

240

300

240

220

200 

190

220

190

170

300

550

500

220

150

130

100

Too

10,652

367

1.36

1.47

Mar.

95

110

130

500

800

1,080

3,980

3,590

1,400

726

410

450

410

450

300

228

132 

270

300

945

855

795

2,650

1,900

2,320

4.200

2,920

1,180

495 

600

594

34,815

1,123

4.16

4.80

Apr.

971

2,750

1,270

594

677

732

789

760

1,000

971

760

650

540

446

386

366

406 

490

594

386

297

297

314

282

3T4

314

459

4.490

2,280

1,350

25,935

864

3.20

3.57

May

849

594

567

490

402

346

294

249

211

200

189

158

148

119

148

550

382 

294

363

382

294

222

189

158

138

249

422

222

158

189

9,334

301

1.11

1.29

June

168

138

138

119

422

211

178

279

5.400

2,260

978

638

398

342

307

246

197 

176

146

99

82

82

82

55

45

45

36

36

%

13,390

446

1.65

1.84

July

95

65

34

34

38

27

24

20

27

34

27

27

20

20

20

20

20 

30

27

27

27

20

20

14

20

20

27

27

59 

43

38

951

31

0.115

0.13

Aug.

30

27

27

27

27

27

20

20

27

27

34

43

30

30

34

27

24 

27

27

20

20

20

27

27

27

27

24

20

14 

14

14

789

25

0.093

0.11

Sept.

20

14

10

27

14

14

14

20

20

20

20

20

14

20

115

53

34 

20

20

20

20

20

20

20

20

14

20

20

20 

30

711

24

0.089

0.10

Calendar year 1903: Max 16,200 Mln 17 Mean 504 Cfsm 1.87 In. 25.36

Water year 1903-4: Max 16,200 Mln 10 Mean 449 Cfsm 1.66 In. 22.65

Note. Stage-discharge relation affected by Ice Nov. 30 to Dec. 20, Dec. 

Feb. 6, Feb. 10 to Mar. 5.

27 to Jan. 23, Jan. 26 to
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS

Catskill Creek at South Cairo, N. Y. Continued

Discharge, in cubic feet per second, water year October 19O4 to September 1905

591

Day

1

2

3

4

5

E 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Of sm

In.

Oct.

27

27

27

27

34

27 

27

27

20

20

27

34

43

53

43

34

34

34

34

43

682

1.010

572

390

318

270

240

215

162

132

113

4,746

153

0.567

0.65

Nov.

113

95

79

65

72

79 

79

65

53

53

«

43

43

95

95

172

172

172

162

122

270

655

6OO

60O

520

352

285

270

270

300

5,994

200

0.741

0.83

Dec.

228

162

132

110

100

113 

95

79

70

42

20

10

14

20

17

28

34

38

44

48

60

60

55

70

55

80

110

1.655

765

335

270

4,919

159

0.589

0.68

Jan.

270

285

495

945

1,800

5.090 

2,540

2,000

933

545

418

600

545

460

400

340

300

360

280

240

220

220

240

220

200

190

200

220

190

170

150

19,066

615

2.28

2.63

Feb.

130

Tiff

10O

95

95

85 

85

120

110

100

110

110

100

100

95

110

120

110

95

95

95

80

85

80

80

80

80

80

-

2,735

98

0.363

0.38

Mar.

80

70

65

60

65

60 

65

65

70

110

170

150

140

140

130

150

170

291

4,310

1,710

927

638

398

505

5.660

4,160

4,910

3,079

4,235

3 , 661

2 ' 309

38,573

1,244

4.61

5.31

Apr.

1,456

990

638

748

990

1.496 

897

638

482

505

837

897

650

505

459

390

304

273

243

230

230

206

185

160

146

144

144

134

124

106

15,207

507

1.88

2.09

May

82

71

73

73

60

52 

47

48

39

39

33

31

30

27

28

30

38

35

30

30

30

24

24

20

16

14

14

12

13

14

13

1,090

35

0.130

0.15

June

13

13

11

9

10

17 

17

24

24

22

20

17

17

18

15

12

10

9

11

12

14

23

79

47

30

26

38

30

30

30

648

22

0.081

0.09

July

23

18

16

14

12

12 

12

12

9

9

9

9

9

9

9

9

7

5

5

6

6

6

4

5

5

5

4

4

4

6

10

273

8.8

0.033

0.04

Aug.

6

9

10

10

10

10 

9

9

10

10

10

15

14

21

27

38

-63 95

34

27

20

19

17

15

14

14

14

14

14

14

24

616

20

0.074

0.08

Sept.

38

33

59

2.485

520

270 

193

142

72

79

79

240

162

113

104

72

79

79

152

152

132

172

122

95

76

51

43

43

34

31

5,922

197

0.730

0.82

Calendar year 1904: Max 5,400 Min . 10 Mean 331 cfsm 1.23 In. 16.71

Water year 1904-5: Max 5,660 Min 4 Mean 273 Cfsm 1.01 In. 13.75

Note. Stage-discharge relation affected by Ice Dec. 4, 5, 9-27, Jan. 14 to Mar. 17.
592 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Esopus Creek at Kingston, N. Y.

Location. La t 41°56'25", long 74°01 I 40", at upstream side of Washington Street Bridge in 

Kingston, Ulster County.

Drainage area. 317 sq mi (revised).

Records available.--July 1901 to April 1909 (discontinued).

Gage. Chain gage read twice dally. Altitude of gage is 140 ft (from topographic map).

Average discharge. 7 years (1901-8), 853 cfs.

Extremes. 1901-8: Maximum discharge, 24,500 cfs Oct. 9, 1903 (gage height, 25.5 ft); 

minimum, 20 cfs several days in September 1908.

Revisions. Revised figures of discharge, in cubic feet per second, for some periods in 

the water years 1902-4 and 1906, superseding those published in WSP 97, 125, and 202, 

are given herewith:

Date

1901

Nov. 29

1902

Jan. 19

Feb. 11

13

Nov. 11

1903

Jan. 1

4

5

6

7

8

9

10

Discharge

138

275

367

327

403

741

1,972

1,227

1,062

905

782

700

665

Date

1903-Con.

Jan. 11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

Discharge

614

700

562

469

412

383

441

383

334

240

383

905

741

527

493 4'84

484

Date

1903-Con.

Jan. 28

29

30

31

Feb. 1

2

3

17

18

19

20

21

22

23

24

25

26

Discharge

512

782

1,373

1,587

1,276

1,179

1,131

1,155

1,030

950

864

782

700

648

648

527

469

Date

1903-Con.

Feb. 27

Dec. 12

17

18

19

20

24

25

26

27

28

29

30

31

1906

May 30

Discharge

455

360

1,400

1,200

1,000

1,100

2,600

1,900

1,400

1,200

1,100

1,000

950

950

1,580

Month

Water year 1901-2. ...........

Water year 1902-3. ...........

May 1906. ......................

Maximum

17,800

905

17,800

9,452

18,730

2,140

8,410

Minimum

95

95

52

92

316

39

Mean

1,007

1,115

1,109

1,030

667

642

Per square 

mile

3.18

3.52

3.50

3.25

2.10

2.03

Runoff In 

inches

43.10

47.74

47.51

44.23

2.43

27.49
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 593

Lackawaxen River at West Hawley, Pa.

Location. Lat 41°28'10", long 75°11'15", at Riverside Bridge at West Hawley, Wayne County, 

half a mile upstream from Middle Creek.

Drainage area. 206 sq mi.

Records available.--October 1931 to September 1938 in reports of Geological Survey (discontinued).May 1921 to September 1938 in reports of Pennsylvania Department of Forests 

and Waters.

Gage. Chain gage. Datum of gage is 885.50 ft above mean sea level (preliminary levels of

Average discharge. 17 years (1921-38), 352 cfs.

Extremes.--1921-38; Maximum discharge, 18,300 cfs (revised) Mar. 18, 1936 (gage height, 

15.32 ft, from floodmarks), from rating curve extended above 3,000 cfs on basis of 

slope-area determination at gage height 22.3 ft, at Hawley, 1.4 miles downstream; minimum observed, 15 cfs Sept. 2, 3, 1929 (gage height, 0.74 ft).

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown in "the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

741 

756 

801 

821 

851

Water 

year

1933 

1934 

1936 

1937 

1938

Date

Aug. 24, 1933 

July 28, 1934 

Mar. 18, 1936 

Feb. 22, 1937 

Sept. 22, 1938

Discharge 

(cfs)

9,680 

6,270 

18,300 

7,430 

7,280

Gage height 

Tfeet)

11.0 

8.75 

1-15.32 

9.6 

9.5

t From floodmarks.

Remarks.--Some dirunal fluctuation at low stages from mills upstream.

Revisions. Revised figures of discharge, in cubic feet per second, for high-water periods 

In the water years 1933, 1936, and 1938, superseding those published in WSP 741, 801, 

and 851, are given herewith:

1933 

Aug. 24........ 6,660

25........ 3,460

1936 

Mar. 12........ 8,330

17........ 6,950

18........ 14,000

19.....'... 6,130 

June 12........ 100

1936-Con.

June 13..

14.. 105

90

68

1938 

Sept.21......... 3,73O

22......... 5,620

Month

Calendar year 1933. ......

Calendar year 1936. ......

Water year 1937-38. ......

Cfs-days

_

_

-

139,218

118,936

Maximum

6,660

14,000

5,620

Minimum

32

16

29

Mean

384

380

326

Per square 

mile

1.96

1.86

.578

1.84

1.58

Runoff In 

Inches

3.08

26.66

25.29

12.76

.65

25.13

21.46
594 REVISIONS OP RECORDS FOR DISCONTINUED STATIONS

McMichaels Creek at Stroudsburg, Pa.

Location.(revised).--Lat 40°58'45", long 75°12'05", at site of former gaging station at 

former railroad bridge, 0.15 mile upstream from Little Creek, 0.25 mile upstream from 

Pocono Creek, three-quarters of a mile southwest of Stroudsburg, Monroe County, and 

1.2 miles upstream from mouth.

Drainage area. 65.3 sq mi (revised).

Records available. October 1920 to September 1921 and October 1931 to September 1938 in 

reports of Geological Survey (discontinued). August 1911 to September 1938 in reports 

of Pennsylvania Department of Forests and Waters. Published as "at Car Shops above 

Stroudsburg" prior to 1914, and as "near Stroudsburg" 1914-28.

Gage. Chain gage. Datum of gage is 403.92 ft above mean sea level (preliminary levels of 

T!912).

Average discharge. 27 years (1911-38), 121 cfs.

Extremes. ISll^S: Maximum discharge, 3,480 cfs (revised) Mar. 12, 1936 (gage height, 

10.5 ft, from floodmarks), from rating curve extended above 1,000 cfs on basis of 

contracted-opening determination at gage height 14.1 ft; minimum daily, 9.0 cfs Nov. 30, 

1930.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

521 

726 

756 

781 

801 

821 

851

Water 

year

1921 

1932 

1934 

1935 

1936 

1937 

1938

Date

Mar. 25, 1921 

Mar. 28, 1932 

June 19, 1934 

July 10, 1935 

Mar. 12, 1936 

Feb. 22, 1937 

Jan. 25, 1938

Discharge 

(cfs)

795 

930 

888 

2,330 

3,480 

1,240 

1,580

Gage height 

Tfeet)

5.4 

5.66 

g5.4 

g8.5 

tlO.5 

g6.3 

g7.0

t From floodmarks.

g From graph based on gage readings.

Remarks. Regulation at low stages caused by operation of powerplants upstream. 

Revisions. Revised figures of discharge, in cubic feet per second, for high-water periods

in the water years 1936 and 1938, superseding those published in WSP 801 and 851, are

given herewith:

1936-Con. 

Mar. 21......... 1,190

22......... 787

1936 

Mar. 11......... 1,350

12......... 2,710

13......... 1,390

14......... 827

17......... 1,470

18......... 2,290

19......... 1,820

20......... 1,260

1.938

June 19. 

20.

Month

June 1938. ................. 

Water year 1937-3S. ......

Cfs-days

50,293

4,175 

53,537

Maximum

2,710

993 

1,130

Minimum

13

13

48 

31

Mean

155

137

139 

147

Per square

mile

10.5

£.37

2.10

£.13 

£.25

Runoff In 

inches

12.11

32.23

28.64

£.38 

30.49

Lehigh River at Lehighton, Pa.

Location. Lat 40°49'4S", long 75°42 1 20", at highway bridge at Lehighton, Carbon County,

0.3 mile upstream from Mahoning Creek. 

Drainage area. 591 sq mi. 

Records available. October 1945 to September 1948 (discontinued). Gage-height records

collected at same site since January 1935 are contained in reports of U. S. Weather

Bureau. 

Gage. Wire-weight gage and crest-stage indicator. Datum of gage is 446.26 ft above mean

sea level, datum of 1929. 

Extremes. 1945-48: Maximum discharge, 20,000 cfs July 8, 1947 (gage height, 11.20 ft);

minimum observed, 189 cfs Sept. 18, 1946.

Remarks. Some regulation at low flow by powerplants above station. 

Revisions. Revised figures of discharge, in cubic feet per second, for high-water periods

in the water year 1948, superseding those published in WSP 1111, are given herewith:

1948 

Sept. 1.

2.

3.

4. 

20.

320 

310 

300 

£95 

340

1948-Con. 

Sept.El........:.. 310

ZZ........... 320

23........... 330

24........... 340

Month

Water year 1947-48. ......

Cfs-days

433,244

Maximum

8,800

Minimum

205

Mean

rjqt:

1,320

Per square 

mile

2.23

Runoff In 

inches

30.42
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 595

Neshamlny Creek at Rushland, Pa.

Location (revised).--Lat 40°15'20", long 75°02'00", at highway bridge, 0.1 mile downstream

from Little Neshamlny Creek, a quarter of a mile west of Rushland, Bucks County, and

0.4 mile upstream from Mill Creek. 

Drainage area. 134 sq ml. 

Records available. June 1884 to December 1913 and October 1931 to December 1934 In

reports of Geological Survey (discontinued). June 1884 to December 1912 and July 1931

to December 1934 in reports of Pennsylvania Department of Forests and Waters. Published

as "below forks near Rushland" prior to 1913. 

Gage. Chain gage. Altitude of gage Is 120 ft (from topographic map). Prior to 1913,

water-stage recorder at same site at different datum. 

Average discharge.--32 years (1884-1913, 1931-34), 226 cfs. 

Extremes. --1931^: Maximum gage height, about 17.8 ft Aug. 23, 1933 (discharge not

determined); minimum discharge observed, 1.3 cfs Oct. 16, 1932 (gage height, 1.73 ft). 

Revisions. Revised figures of discharge, in cubic feet per second, for high-water periods

In the water year 1932, superseding those published in WSP 726, are given herewith:

1932 

Jan. 7......... 1,370

9......... 717

10......... 596

Mar. 6......... 172

7......... 486

22......... 400

1932-Con. 

Mar. 28......... 5,960

29......... 596

Apr. 1......... 675

10......... 1,080

11......... 756

Month

Calendar year 1932. . .........

Maximum

6,210

Minimum

27

1.4

Mean

2ll

172

Per square 

mile

1.57

1.28

Runoff in 

inches

1.81

17.44

Ridley Creek at Moylan, Pa.

Location. Lat 39°54'10", long 75°23'35", on left bank 3 ft upstream from Fox Bank Bridge

at Moylan, Delaware County, and 1 mile south of Media. 

Drainage area.--31.9 sq ml. 

Records available. October 1931 to September 1954 In reports of Geological Survey (discontinued).lugust 1931 to September 1941 in reports of Pennsylvania Department of

Forests and Waters. 

Gage. Water-stage recorder. Datum of gage Is 87.36 ft above mean sea level (Pennsylvania

Railroad benchmark).

Average discharge. 23 years, 43.3 cfs. 

Extremes. 1931^54: Maximum discharge, 5,720 cfs Nov. 25, 1950 (gage height, 10.84 ft),

from rating curve extended above 1,300 cfs on basis of contracted-opening determination

of peak flow; minimum, 0.1 cfs Feb. 22, 1942, result of freezeup (gage height, 0.32 ft);

minimum dally, 2.4 cfs Sept. 8, 1944. 

Remarks. Diurnal fluctuation at low flow caused by small reservoir above station.

Figures of discharge do not include diversion of about 1.1 cfs to borough of Media for

municipal use. 

Revisions (water years).--WSP 756: Drainage area. WSP 1202: 1933, 1934(M), 1935-36,

1938, 1939(P), 1940, 1942(P), 1946(P), 1950. The mean dally discharge for Sept. 8,

1935, has been corrected to 55 cfs, superseding figure published In WSP 781. Revised

figures of discharge, In cubic feet per second, for the water year 1935, superseding

those published in WSP 781, are given herewith:

Nov. 30, 1934............. 141

Month

Calendar year 1934. . ..... 

Water year 1934-35. ......

Cfs-days

14,938 

16,783

Maximum

480 

912

Minimum

11 

14

Mean

40.9 

46.0

Per square 

mile

1.28 

1.44

Runoff in 

inches

17.40 

19.54
596 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Oldmans Creek near Woodstown, N. J.

Location.--Lat 39°41'27", long 75°19'09", at Woodstown-Swedesboro highway bridge, 2 miles 

north of Woodstown, Salem County, and 16 miles upstream from mouth.

Drainage area. 19.3 sq mi.

Records available. June 1931 to September 1940 (destroyed by flood of September 1940).

Gage. Water-stage recorder and concrete control. Altitude of gage is 13 ft (from topographic map).

Average discharge. 9 years, 29.0 cfs.

Extremes. 1931-40: Maximum discharge, 8,100 cfs Sept. 1, 1940 (gage height, 20.3 ft, 

from floodmark), from rating curve extended above 400 cfs on basis of contractedopening determination of peak flow: minimum, 4.2 cfs Jan. 6, 1940 (gage height, 

1.25 ft).

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in water-supply 

papers iniicated.

WSP

726 

741 

756 

781 

801 

851 

871

Water 

year

1932 

1933 

1934 

1935 

1936 

1938 

1939

Date

Mar. 28, 

Aug. 23, 

Aug. 3, 

Sept. 6, 

Jan . 3 , 

June 27, 

Jan. 30,

1932 

1933 

1934 

1935 

1936 

1938 

1939

Discharge 

(cfs)

330 

1,380 

498 

1,040 

651 

2,000 

408

Gage height 

(feet)

5.54 

8.22 

6.16 

7.57 

6.67 

9.08 

5.49

Revisions. Revised figures of discharge, in cubic feet per second, for the period June to 

September 1931 and water years 1932-36 and 1938-39, superseding those published in 

WSP 711., 726, 741, 756, 781, 801, 851, and 871, are given herewith:

Date

1931

July 7

6

1932

Mar. 6

7

28

Nov. 10

19

20

1933

Aug. 23

24

29

Discharge

58

148

54

108

209

142

106

109

485

328

134

Date

1934

Mar. 3

4

July 13

Aug. 3

Sept. 8

30

1935

Aug. 15

16

Sept. 5

6

7

Nov. 17

18

Discharge

99

146

124

298

147

94

73

80

95

490

113

129

115

Date

1935-Con.

Nov. 28

29

1936

Jan. 3

4

9

Feb. 14

15

18

25

26

June 18

Discharge

51

252

370

123

98

192

161

128

138

171

164

Date

1938

June 27

28

Sept. 20

21

22

1939

Jan. 30

Feb. 3

4

Discharge

817

412

404

406

271

254

208

151

Month

July 1931.............

March 1932. ........... . 

Water year 1931-32..

Calendar year 1932..

August 1933. .......... 

Water year 1932-33.. 

Calendar year 1933..

Water year 1933-34.. 

Calendar year 1934. .

Water year 1934-35..

Calendar year 1935..

Water year 1935-36.. 

Calendar year 1936..

Water year 1937-38.. 

Calendar year 1938..

Water year 1938-39. . 

Calendar year 1939. .

Cfs -days

-

1

-

:

-

10,538.0

11,260.5

11,868.7 

10,224.6

11,753.4 

12,320.8

13,686.8 

11,772.4

Maximum

148

209

209

209

485 

485 

485

298 

298

490 

252

490

370 

370

817 

817

254 

254

Minimum

5.1

12.5 

5.1

5.1

8.1 

5.4 

8.1

6.9 

6.9

8.9

8.9

7.2 

7.2

8.8 

8.8

9.3 

9.3

Mean

17.5

36.7 

16.3

19.9

56.8 

31.9 

30.4

24.4 

25.8

28.9

30.9

32.4 

27.9

32.2 

33.8

37.5 

32.3

Per square 

mile

0.907

1.90 

.845

1.03

1.65 

1.58

1.26 

1.34

1.50

1.60

1.68

1.45

1.67 

1.75

1.94 

1.67

Runoff in 

inches

1.05

2.19 

11.50

14.05

22.42 

21.37

1.87

17.20 

18.18

20.31

21.71

22.88 

19.72

22.65 

23.74

26.38 

22.69
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 597

Murderkl.ll River near Pelton, Del.

Location. Lat 38°58'33", long 75°34'03", on right bank 200 ft downstream from Black 

Swamp Creek and 2.2 miles south of Pelton, Kent County.

Drainage area. 14.4 sq mi.

Records available. October 1931 to October 1933 in reports of Geological Survey (discontinued).July 1931 to October 1933 in reports of Pennsylvania Department of Forests 

and Waters.

Gage. Staff gage read twice daily. Altitude of gage is 25 ft (from topographic map).

Extremes.--1931-33: Maximum discharge, about 490 cfs Aug. 23, 1933 (gage height, 5.1 ft), 

from rating curve extended above 110 cfs; minimum, 1.3 cfs several times in September 

and October 1932 (gage height, 0.48 ft).

Revisions. The maximum discharge for the water year 1932 has been revised to 346cfs 

May 13, 1932 (gage height, 4.36 ft, estimated), superseding figure published in VEP 726.

Revisions (water years). WSP 1302: 1931-32. Revised figures of discharge, in cubic feet 

per second, for the water year 1932, superseding those published in WSP 726, are given 

herewith:

Date

1931

Nov. 8

9

10

11

12

13

14

Discharge

4.0

3.5

3.2

3.4

3.4

3.2

3.7

Date

1931-Con.

Nov. 15

16

17

18

19

20

21

Discharge

3.7

3.7

4.0

4.0

5.8

4.6

4.3

Date

1931-Con.

Nov. 22

23

24

25

1932

May 13

Discharge

4.3

4.3

4.3

4.3

242

Month

May 1932...... ......

Water year 1931-32 

Calendar year 1932

Maximum

6.8

242

242 

242

Minimum

1.3 

1.3

Mean

4.28

25.8

13.0 

15.6

Per square 

mile

1.79

.903 

1.08

Runoff In 

Inches

0.33

2.07

12.25 

14.74

Susquehanna River at Wysox, Pa.

Location. Lat 41°46'05", long 76°18'55", at highway bridge at Little Wysox Creek, at 

Wysox, Bradford County, 0.9 mile upstream from Wysox Creek.

Drainage area.--8.090 sq mi (revised), includes that of Little Wysox Creek. 

Records available.--September 1908 to December 1909 (discontinued). 

Gage.--Steel-tape gage. Datum of gage is 682.36 ft above mean sea level.

Extremes. 1908-9: Maximum discharge observed, 86,000 cfs May 2, 1909 (gage height, 15.78 

ft), from rating curve extended above 38,000 cfs; minimum observed, 525 cfs Sept. 28,

1908.

Revisions. Revised figures of discharge, in cubic feet per second, for the water year

1909. superseding those published in WSP 261, are given herewith:

1909

Jan..24............... 8,760

Feb. 26............... 53,000

July 24............... 1,500

Month

Water year 1908-9. 

Calendar year 1909

Maximum

86,000 

86 , 000

Minimum

1 300

570 

550

Mean

9,030 

9,050

Per square 

mile

1.12 

1.12

Runoff In 

Inches

1.69

3.24

.26

15.17 

15.18

505690 O-59-39
598 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Lackawanna River at Moosic, Pa.

Location.--Lat 41°21'30", long 75°43'50", at highway bridge at River Street or Moosic Road, 

at Moosic, Lackawanna County, 0.4 mile above Spring Brook.

Drainage area. 264 sq ml (revised).

Records available.--October 1919 to September 1921 in reports of Geological Survey (discontinued).August 1913 to September 1919 collected by Water Supply Commission of Pennsylvanla, available In files of Harrisburg district office, Geological Survey. October 1921 to September 1928 in reports of Pennsylvania Department of Forests and Waters.

Gage.--Chain gage. Datum of gage is 619.46 ft above mean sea level, datum unknown.

Average discharge. 15 years (1913-28), 491 cfs.

Extremes. 1919-20: Maximum discharge during water year, 6,950 cfs Mar. 13 (gage height, 

7.7 ft, from graph based on gage readings); minimum, 132 cfs Oct. 4 (gage height, 

1.98 ft).

1913-28: Maximum discharge, 10,200 cfs Oct. 19, 1927 (gage height, 9.3 ft, .from 

graph based on gage readings], from rating curve extended above 3,800 cfs on basis of 

slope-area determinations of peak flow at stations at Archbald and Old Forge for flood 

of May 23, 1942; minimum, 48 cfs Oct. 10, 1917 (gage height, 1.61 ft).

Revisions. The maximum discharge, for the water year 1920 has been revised to 6,950 

cfs Mar. 13, 1920 (gage height, 7.7 ft, from graph based on gage readings), superseding 

figure published in WSP 501.

Remarks. Some regulation at low flow by mine pumpage above station.

Revisions.--Revised figures of discharge, in cubic feet per second, for the water years 

1920-21, superseding those published in WSP 501 and 521, are given herein. Complete 

daily table is given for water year 1920, but only revised figures for water year 1921.

Date

1921

Aug. 21

22

23

24

25

26

27

28

29

Discharge

122

130

137

145

145

137

130

130

13O

Date

1921-Con.

Aug. 30

31

Sept. 1

4

5

6

7

8

9

Discharge

122

112

109

130

97

145

122

112

115

Month

Calendar year 1921. ..........

Maximum

250

4j440

Date

1921-Con.

Sept. 10

11

12

13

14

15

16

18

19

Discharge

115

134

122

115

115

115

115

112

109

Date

1921-Con.

Sept. 20

21

25

27

28

29

3O

Discharge

115

145

122

145

109

112

137

Minimum

97

97

Mean

151

132

477

428

Per square 

mile

0.572

.500

1.81

1.62

Runoff in 

inches

0.66

.56

24.56

22.O2

Discharge, In cubic feet per second, water year October 1919 to September 1920

Day

1

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

25

24

25

26

27 

28

29

5O

31

Total

Mean

Cfsm

In.

Oct.

172

24O

148

148

148

ISO

2OO

185

164

190

205

*220

195

245

240

245

378

542

510

500

290

275

270

250

235

200

255 

305

280

520

450

7,585

245

0.928

1.07

Nov.

545

1,220

880

685

1,400

1,000

800

*685

615

545

510

58O

84O

650

545

510

450

420

390

366

350

342

354

356

290

685

2.220 

1,400

1,000

1,040

21,655

721

2.75

5.05

Dec.

748

675

605

472

440

440

505

505

760

9 2O

650

640

615

1.400

960

800

650

570

570

57O

570

558

505

440

440

580

410 

580

332

352

332

18,154

586

2.22

2.56

Jan.

320

314

298

235

244

254

244

275

552

*'298

259

254

275

255

233

213

215

195

215

225

233

218

223

254

225

218

233 

254

218

223

204

7,624

246

0.932

1.07

Feb.

148

T72

200

164

185

21O

210

185

210

21O

19O

210

21O

230

180

200

2 2O

23O

2 2O

210

21O

2OO

200

200

200

220

190 

172

156

5,742

198

0.750

0.81

Calendar year 1919: Max 2,220 Min 108

Mar.

230

240

3O5

384

1,5OO

1,6OO

1,220

1,OOO

88O

1,O40

1,220

5,000

5.780

3,150

2,000

1,900

3,150

2.22O

1,900

1,31O

1,220

1,22O

*1,4OO

2.0OO

2,590

2,460

2,720 

2,000

1,800

1,600

1,220

54,259

1,750

6.63

7.64

Apr.

1,150

1.400

1,220

1,040

1,08O

1,15O

1,OOO

80O

720

650

615

545

720

720

580

545

880

800

650

615

720

800

650

720

650

545

545 

450

450

510

22,880

763

2.89

5.22

May

650

545

480

410

356

526

320

326

509

514

562

410

615

*505

44O

362

326

292

281

259

615

685

Tio

580

520

520

309 

254

253

213

200

11,827

382

1.45

1.67

June

195

182

TS6

186

760

640

440

374

352

275

*264

253

552

275

254

244

960

1 150

720

570

505

472

472

380

332

286

286 

259

264

275

12,083

403

1.55

1.70

July

258

292

350

544

275

244

332

314

309

223

204

35O

640

538

410

532

275

254

264

352

286

286

580

5.000

1,600

1,040

685

570

505

440

440

15,752

508

1.92

2.22

Aug.

472

44O

532

509

275

264

244

244

258

254

3O9

3O9

298

440

550

520

410

640

570

380

309

275

298

254

238

223

215 

195

505

552

10,320

555

1.26

1.45

Sept.

254

249

218

213

213

264

532

281

292

615

605

1.510

840

615

505

440

410

309

275

264

264

259

*244

238

218

215

215 

440

580

1 ' 130

12,105

405

1.55

1.70

Mean 460 Cfsm 1.74 In. 25.68

Water year 1919-20: Max 5,780 Min 148 Mean 546 Cfsm 2.07 In.. 28.16

Calendar year 1920: Max 5,780 Min 148 Mean 588 Cfsm 2.23 In. 29.72

* Discharge measurement made on this day.
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 599

Deer Creek near Churchvllle, Md.

Location. Lat 39°36'05", long 76°15'37", at bridge on State Highway 136, 0.9 mile upstream from Coolbranch Run and 3.0 miles north of Churchvllle, Harford County.

Drainage area. 141 sq ml.

Records available. December 1904 to March 1909 (discontinued).

Gage.--Chain gage. Altitude of gage Is 95 ft (from topographic map).

Extremes. 1904-9: Maximum discharge, 10,600 cfs Feb. 26, 1908 (gage height, 11.5 ft, 

from graph based on gage readings), from rating curve extended above 700 cfs by logarithmic plotting; minimum observed, 80 cfs July 19-21, Aug. 22-25, Oct. 17-24, 1908 

height, 1.55 ft).

Remarks. Some regulation at low stages by upstream mills.

Revisions. Revised figures of discharge, in cubic feet per second, for the water year 

1907, superseding those published in WSP 241, are given herewith:

Date

1907

Jan. 24

25

26

27

28

29

30

31

Feb. 1

2

3

4

Discharge

b200

209

242

176

b!70

194

203

178

194

226

£60

194

Date

1907-Con.

Feb. 5

6

7

8

9

10

11

12

13

14

15

16

Discharge

126

bllO

blOO

blOO

blOO

260

£42

b230

b230

260

277

242

Date

1907-Con.

Feb. 17

18

19

20

21

22

23

24

25

26

27

28

Discharge

226

209

260

260

194

b!70

b!70

2O9

26O

b220

178

b!70

Month

Calendar year 1907. .......

Maximum

2,650

Minimum

87

Mean

254

203

247

Per square 

mile

1.44

1.75

Runoff in 

inches

2.08

1.50

23.83

b Stage-discharge relation affected by ice.
600 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Monocacy River near Frederick, Md.

Location (revised). Lat 39°27'09", long 77°22'16", near right bank on downstream side of 

bridge on State Highway 26 at Ceresville, 1,200 ft upstream from Israel Creek and 

3.3 miles northeast of Frederick, Frederick County.

Drainage area. 665 sq mi.

Records available. August 1896 to September 1930 (discontinued).

Gage.--Chain gage. Datum of gage is 242.45 ft above mean sea level (levels by Corps of 

Engineers). Prior to Sept. 3, 1902, wire-weight gage at same site and datum.

Average discharge.--34 years (1896-1930), 943 cfs.

Extremes. 1896-1930: Maximum discharge, 26,600 cfs Sept. 1, 1911 (gage height, 27.5 ft, 

from graph based on gage readings) , from rating curve extended above 4,700 cfs on 

basis of curve of relation with station at Jug Bridge; minimum, 15 cfs several days In 

October 1910 (gage height, 3.54 ft).

Maximum stage known, about 35 ft In June 1889, from floodmark (discharge, about 

46,000 cfs, from rating curve extended as explained above).

Revisions. The figures of maximum discharge for some water years have been revised, as shown In the following table. They supersede figures published In the watersupply papers Indicated.

WSP

-

-

-

-

-

-

381

-

401,431

431

451

501

521

541

561

581

601

621

641

661

681

696

Water 

year

1897

1898

1899

1902

1904

1905

1908

1911

1915

1916

1917

1919

1921

1922

1923

1924

1925

1926

1927

1928

1929

1930

Date

Feb. 7,

Nov . 2 ,

Dec. 5,

Mar. 1,

Mar. 8,

Aug. 26,

Feb. 16,

Sept. 1,

Jan. 13,

June 17,

Mar. 12,

Dec. 23,

May 13 ,

Mar. 8,

July 31,

Jan. 17,

Feb. 12,

Feb. 26,

Nov. 16,

Oct. 19,

May 3,

Oct. 3,

1897

1897

1898

1902

1904

1905

1908

1911

1915

1916*

1917*

1918

1921

1922

1923

1924

1925

1926

1926

1927

1929

1929

Discharge 

(cfs)

t!3,400

1-12,900

1-14,000

1-25,700

1-20,300 tie.ooo

22,400

t26,600

23,400

17,300

12,700

10,500

16,600

8,650

14,000

17,300

14,600

15,300

23,000

21,200

19,500

16,600

Gage height 

(feet)

*18.5

*18.0

a!9.0

a27.0

a23.6

a22.0

a25.0

a27.5

*27.2

a23.5

*20.4

alS.O

a23.0

a!6.0

a21.0

a23.5

a21.5

a22.0

a27.0

a26.0

a25.0

a23.0

* Date corrected .

t Not previously published. 

t Observed at peak. 

a From graph based on gage readings.

Revisions. --WSP 192: 1896-1906 calendar years. WSP 351: 1912 calendar year. WSP 581: 

Drainage area. Revised figures of discharge, In cubic feet per second, for the water 

years 1897-99, 1902, 1904, 1905, and 1917, superseding those published In WSP 192 and 

451, are given herewith:

Date

1897

Jan. 25

26

27

28

29

30

31

1898

Feb. 2

3

4

5

6

7

1899

Feb. 9

10

11

12

13

14

15

16

17

18

19

21

Discharge

320

280

27O

270

270

250

230

600

540

490

460

450

450

640

600

580

560

540

520

510

500

530

700

1,500

5,000

Date

1902

Feb. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

1904

Jan. 9

10

11

12

13

14

15

16

17

Discharge

900

830

790

750

730

710

690

670

660

660

650

650

650

650

660

680

710

770

270

250

230

220

210

210

200

200

190

Date

1904-Con.

Jan. 18

19

20

21

28

29

30

31

1905

Feb. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

Discharge

190

190

190

200

250

230

220

220

450

400

370

350

330

310

300

290

280

270

265

260

255

250

250

250

250

250

250

Date

1905-Con.

Feb. 20

21

22

23

24

25

26

27

1917

Feb. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

Discharge

250

250

250

260

280

320

400

600

700

580

470

410

370

340

320

300

290

280

260

240

220

210

200

190

190

190
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 

Monocacy River near Frederick, Md. Continued

601

Revised figures of monthly discharge, In cubic feet per 

1917.

second, 1897-99, 1902, 1904-5,

Month Maximum Per square 

mile

Runoff In 

Inches

January 1897 730 

Water year 1896-97.............. ' 11,010

Calendar year 1897.............. 11,010

February 1898..................... 9,450

Water year 1897-98.............. 9,592

Calendar year 1898.............. 12,850

February 1899..................... 12,690

Water year 1898-99.............. 12,850

Calendar year 1899.............. 12,690

February 1902..................... 19,200

Water year 1901-2............... 20,460

Calendar year 1902.............. 20,460

January 1904...................... 14,800

Water year 1903-4............... 14,800

Calendar year 1904.............. 14,800

February 1905..................... 734

Water year 1904-5............... 13,640

Calendar year 1905.............. 13,640

February 1917..................... 1,420

Water year 1916-17.............. 9,750

Calendar year 1917.............. 12,400

147

103

94

266

765

974

450

94

103

1,335

988

1,042

500

85

2,637

1,254

1,020

3,288

1,372

1,595

975

727

694

250

80

144

320

911

1,100

190

122

152

554

796

891

.400

1.15

1.46

2.01

1.49

1.57

3.97

1.89

1.53

4.94

2.06

2.40

1.47

1.09

1.04

.481

1.37

1.65

.833

1.20

1.34

.46

15.61

19.92

2.09

20.16

21.15

4.13

25.61

20.82

5.14

27.99

32.56

1.70

14.90

14.20

.50

18.61

22.46

.87

16.24

18.21
602 REVISIONS OP RECORDS FOR DISCONTINUED STATIONS

Northeast Branch Anacostia River at Hyattsville, Md.

Location.--Lat 38°57'00", long 76°56'07", at highway bridge in Hyattsville, Prince Georges

County, 0.6 mile upstream from confluence with Northwest Branch. 

Drainage area.--75 sq mi, approximately.

Records available. July 1911 to September 1912 (discontinued). 

Gage.--Staff gage. Datum of gage is 5.02 ft above mean sea level (Corps of Engineers

benchmark).

Cooperation.--Records computed by Corps of Engineers and reviewed by Geological Survey. 

Revisions. Revised figures of discharge, in cubic feet per second, for ice-affected

periods in the water year 1912, superseding those published in WSP 321, are given

herewith:

1912

7............ 62

13............ 38

Month

January 

February

Maximum

786 

800

19 

Jan.

Feb.

Minimum

25 

20.7

L2- 

16 

17 

5 

9 

10 

11 

12

Mean

153 

159

Con.

26 

25 

50 

45 

30 

21 

30

Per square 

mile

2.04 

2.12

Runoff in 

inches

2.35 

2.29

Northwest Branch Anacostia River at Bladensburg, Md.

Location.--Lat 38°56'45", long 76°56'52", 300 ft upstream from District of Columbia Transit 

Co. railway bridge, 0.35 mile upstream from confluence with Northeast Branch, and 

0.5 mile northwest of Bladensburg, Prince Georges County.

Drainage area. 52 sq mi, approximately.

Records available. July 1911 to September 1912 (discontinued).

Gage. Staff gage. Datum of gage is 3.33 ft above mean sea level (Corps of Engineers 

benchmark).

Remarks. Medium and high stages on Northeast Branch or extreme high tides may cause backwater at this station.

Cooperation. Records computed by Corps of Engineers and reviewed by Geological Survey.

Revisions.r-Revlsed figures of discharge, in cubic feet per second, for ice-affected 

periods in the water year 1912, superseding those published in WSP 321, are given 

herewith:

1912 

Jan. 6.

1912-Con. 

Jan. 14.....

Month Maximum

597

Minimum

14.5

Mean

80.5

Per square 

mile

1.55

Runoff in 

inches

1.79

Beaverdam Branch Anacostia River'at Kenilworth Avenue, Washington, D. C. 

(Formerly published as Beaverdam Branch Anacostia River at Kenilworth, D. C.)

Location. Lat 38°54'57", long 76°55'57", at Kenilworth Avenue Bridge, Washington, D. C.

 0.3 mile north of District of Columbia line and 0.6 mile upstream from mouth.

Drainage area. 14 sq mi, approximately.

Records available. July 1911 to September 1912 (discontinued).

Gage. Staff gage. Datum of gage is 2.42 ft above mean sea level (Corps of Engineers

benchmark).

Remarks. Records may be affected by backwater during abnormally high tides. 

Cooperation. Records computed by Corps of Engineers and reviewed by Geological Survey. 

Revisions. Revised figures of discharge, in cubic feet per second, for ice-affected

periods in the water year 1912, superseding those published in WSP 321, are given

herewith:

1912 

Jan. 5

1912-Con..

9. ........

Month

January 1912. ..............

11

Maximum

64

Minimum

5

1

1

Mean

18.1

6. ........... 

7. ...........

Per square 

mile

1.29

6

5 

5

Runoff in 

inches

1.49
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 603

Measurements of streamflow In the North Atlantic slope basins, New York to York River 

made at points other than regular gaging stations are given In the following table. Most 

of these measurements were made during periods of base flow when streamflow Is primarily 

from ground-water storage. Measurements believed to have been made under base-flow conditions are Identified by an asterisk (*) to the left of the discharge figure. These measurements when correlated with the simultaneous discharge of a nearby stream where continuous records are available will give a picture of the low-flow potentiality of stream. The 

column headed, "Measured previously" shows the water years In which measurements were made 

at the same, or practically the same, site.

Determinations of peak flow at points other than regular gaging stations are given in 

a separate table on page 617.

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins. New York to York River during water year 1956

Streams on Long Island 

Streamflow Investigation, Nassau and Suffolk Counties, New York

An Investigation of streamflow characteristics of Nassau and Suffolk Counties Is being made for 

the purpose of determining the water loss by runoff from surface streams Into the Atlantic Ocean 

and to study relationships between dry-weather streamflow and ground-water conditions and to correlate the flow from small areas with those on which streamflow records are available for a complete 

Inventory of surface flow and available water supplies from all sources. Current-meter measurements 

are made at selected points throughout the Island at the same time and under the same general conditions as at regular gaging stations, approximately four times a year, under varying conditions of 

streamflow. These results, together with streamflow records, ground-water records, and geologic 

studies of the area Indicate the water-supply potentials of this area with particular reference to 

probable loss of available supplies from sustained surface flow, under typical conditions.

The measurements on each stream are listed In order, proceeding clockwise around the Island. 

Drainage areas have not been determined because existing maps are Inadequate and also because much 

of the surface flow Is derived from ground-water storage that may originate from an area differing 

from that of the surface drainage.

Stream

Whltney Lake Outlet..

Roslyn Brook. ........

Dosorls Brook. .......

Mill Creek...........

Stony Hollow Run. ....

Nlssequogue River. . . .

Do........ ........

Wading River. ........

Aquebogue Creek. .....

Sawmill Creek. .......

Peconlc River. .......

Great Pond Outlet

(tributary to

Peconlc River).

White Brook. .........

Location

Lat 40°47'>30", long 73°42'30", In Manhasset,

Nassau County, at bridge on Creek Rd.,

£ mile northwest of State Highway 25A.

Lat 40°47'55", long 73°38'55", In Roslyn,

Nassau County, 2OO ft below dam In Roslyn

Park.

Lat 40°53'25", long 73°37'1O", at bridge on

Lattingtown Ave., 1/3 mile southwest of

Lattlngtown, Nassau County, and ! £ miles

northwest of Locust Valley.

Lat 40°52.'55", long 73°25'15", at culvert

on Creek Rd., 3OO ft west of New York Ave.

and 1 mile northeast of Huntlngton, Suffolk County.

Lat 40°53'05", long 73°21'40", at culvert

on State Highway 25A, £ mile east of

Centerport, Suffolk County, and lj miles

southwest of Northport.

Lat 40°51'05", long 73°11'15", 1OO ft below

bridge on State Highway 111, { mile

southeast of Smlthtown Branch, Suffolk

County, and 3 miles above gaging station

near Smlthtown.

Lat 40°50'45", long 73°12'25", 25 ft below

culvert at Juniper Ave., { mile southwest

of Smlthtown Branch, Suffolk County, and

2 miles above gaging station near Smithtown.

Lat 40°57'20", long 72°51'20", at pond outlet, i mile west of town of Wading River,

Suffolk County.

Lat 40°56'20", long 72°37'10", 200 ft north

of Long Island RR., 6OO ft northwest of

Cedar Ave., and J mile south of Aquebogue,

Suffolk County.

Lat 40°55'30", long 72°39'OO", at culvert

on State Highway 25, { mile northeast of

Rlverhead, Suffolk County.

Lat 4O°52'40", long 72°49'40", at bridge on

Schultz Rd. , 1 mile northwest of Manorvllle, Suffolk County, and 8j miles above

gaging station at Rlverhead.

Lat 40°53'50", long 72°40'30", at pond outlet 500 ft east of Morlches-Rlverhead Rd.

and l£ miles southwest of Rlverhead,

Suffolk County.

Lat 40"54 '40", long 72°38'45", at culvert

on State Highway 24, 1 mile southeast of

Rlverhead, Suffolk County.

Measured 

previously 

(water 

years)

1953-55

1953-55

1953-55

1953-55

1953-55

1948-49,

1951-55

1953-55

1953-55

1949-55

1953-55

1948-49,

1951-55

1952-55

1953-55

Date

Jan. 24

June 26

Aug. 30

Nov. 28

Jan. 27

May 16

July 19

Jan. 27

Mar. 22

May 16

July 19

Oct. 12

Jan. 23

Apr. 17

June 29

Oct. 12

Jan. 23

Apr. 17

June 29

Oct. 12

Dec. 22

Apr. 5

June 29

Oct. 12

Dec. 22

Apr. 5

June 29

Oct. 27

Jan. 24

Apr. 19

July 5

Apr. 19

Sept. 7

Oct. 26

Jan. 4

Apr. 19

July 6

Oct. 27

Jan. 24

Apr. 19

July 5

Oct. 27

Jan. 4

Apr. 19

July 6

Oct. 26

Jan. 4

Apr. 5

July 6

Discharge

(ofB)

0.82

1.73

3.36

2.12

4.32

4.83

1.73

.73

1.08

1.01

.67

3.08

3.42

3.62

2.40

.43

1.31

1.51

1.55

.93

2.08

3.44

.97

2.53

5.33

8.59

3.66

.73

1.06

1.15

1.61

.84

1.41

1.94

2.33

5.58

4.61

7.14

5.64

19.2

5.80

3.77

4.66

5.38

5.13

3.23

2.46

4.17

7.13
604 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins. New York to York River during water year 1956--Contlnued

Streams on Long Island Continued

Stream

Fresh Pond Creek.....

Long Pond Outlet.....

Hook Pond Inlet......

Sagaponack Lake inlet

Quantuek Creek. ......

Beaverdam Creek. .....

East Branch Seatuek

Creek.

Seatuek Creek. .......

West Seatuek Creek...

Terrell River. .......

Forge River. .........

Beaverdam Creek. .....

Bellport Creek. ......

Mud Creek. ...........

Patchogue Creek. .....

Tuthllls Creek.......

East Branch Browns

Creek.

West Branch Browns

Creek.

Greens Brook. .......

Location

Lat 40°52'50", long 72°25'05", at culvert on

Noyaek Rd. , at North Sea, Suffolk County,

3i miles northwest of Southampton.

Lat 40°59'20", long 72°18'10", 20 ft below

culvert on Brick Kiln Rd. and £ mile

southeast of Sag Harbor, Suffolk County.

Lat 40°57'35", long 72°10'40", at bridge on

Davids Lane, £ mile southeast of Easthampton, Suffolk County.

Lat 40°55'45", long 72°17'15", 50 ft below

bridge on Sagg St. and 1 mile southeast

of Brldgehampton , Suffolk County.

Lat 40°50'00", long 72°37'05", at culvert

on Old Meeting House Rd. , 1 mile northwest of Quogue, Suffolk County.

Lat 40°49'25", long 72°39'45", at culvert

on Old Country Rd. , 100 ft northwest of

State Highway 27 and 1 mile northwest of

Westhampton, Suffolk County.

Lat 40°49'20", long 72°43'05", 15 ft above

culvert on Long Island RR., 200 ft south

of State Highway 27, and £ mile east of

Eastport, Suffolk County.

Lat 40°49'30", long 72°43'45", 150 ft below

bridge on State Highway 27, at Eastport,

Suffolk County.

Lat 40°49'10", long 72°44'20", at culvert

on Morlches Blvd. , £ mile southwest of

Eastport, Suffolk County.

Lat 40-47 '55", long 72°46'25", 30 ft below

culvert on State Highway 27 and £ mile

southwest of East Morlches, Suffolk

County.

Lat 40°48'20", long 72°50'00", at culvert

on State Highway 27, at Morlches,

Suffolk County.

Lat 40°51'45", long 72°56'35", at culvert

on Bartlett Rd. , £ mile south of Middle

Island, Suffolk County, and 3 miles

above gaging station at Yaphank. 

Lat 40°46'40", long 72°55'00'', at culvert

on South Country Rd., at Brookhaven,

Suffolk County, l£ miles northeast of

Bellport.

Lat 40°45'45", long 72°55'55", 30 ft below

culvert on South Country Rd., at Bellport,

Suffolk County.

Lat 40°45'45", long 72°59'00", at culvert

on South Country Rd. , at East Patchogue,

Suffolk County, 2 miles east of Patchogue.

Lat 40°46'55", long 73"01'15", at bridge on

discontinued road, 300 ft west of North

Ocean Ave. and 1- mile north of State Highway 27 and gaging station in Patchogue,

Suffolk County.

Lat 40°45'45", long 73°01'40", at culvert

on State Highway 27, £ mile west of

Patohogue, Suffolk County.

Lat 40°44'35", long 73°04'05", at culvert

on Long Island RR. , £ mile south of State

Highway 27 and 1 mile northeast of Sayville, Suffolk County.

Lat 40°44'30", long 73°04'30", at culvert

on Long Island RR. , 450 ft south of State

Highway 27, in Sayville, Suffolk County.

Lat 40°43°50', long 73°05'30", 30 ft above

State Highway 27, at West Sayville,

Suffolk County.

Measured 

previously 

(water 

years)

1951-55

1953-55

1953-55

1953-55

1953-55

1953-55

1953-55

1953-55

1955

1953-55

1948-50,

1952-55

1947-55

1948-55

1948-50,

1952-55

1947-55

1945-50,

1952-55

1947-49,

1953-55

1948,

1950-55

1948,

1950-55

1953-55

Date

Oct. 26

Jan. 25

Apr. 5

Aug. 1

Oct. 26

Jan. 25

Apr. 5

Aug. 1

Oct. 26

Jan. 25

Apr. 5

Aug. 1

Oct. 26

Jan. 25

Apr. 5

Aug. 1

Dee. 27

May 5

July 17

Nov. 17

Dec. 27

Apr. 6

July 17

Jan. 5

Apr. 6

July 17

Dee. 27

Apr. 6

July 17

Jan. 5

Feb. 23

May 5

Aug. 28

Jan. 5

Apr. 6

July 17

Nov. 12

Feb. 23

May 5

July 25

Nov. 15

Apr. 24

June 12

Oct. 31

Feb. 23

May 5

July 25

Nov. 15

Apr. 6

June 28

Oct. 31

Jan. 31

May 12

July 25

Nov. 17

Apr. 5

June 20

Nov. 25

Jan. 31

May 12

July 25

Nov. 9

Feb. 20

May 15

Aug. 15

Nov. 9

Feb. 20

May 15

Aug. 15

Nov. 17

Apr. 5

June 2

Discharge 

(efs)

1.89

1.57

3.57

1.29

.88

1.10

1.98

1.81

.95

1.13

1.68

.98

2.37

2.72

5.57

2.84

2.27

3.93

2.34

2.69

2.60

2.89

2.73

2.73

3.41

2.62

5.97

5.69

5.71

4.35

5.03

5.18

4.05

2.52

2.94

3.40

12.3

13.2

12.6

11.6

5.25

5.10

5.02

2.33

2.58

2.70

2.09

2.26

1.95

1.85

7.79

6.41

7.20

6.30

19.1

15.8

14.9

7.04

6.48

7.60

6.87

6.87

8.14

6.60

2.96

8.24

7.11

8.70

5.17

7.40

6.26

5.00
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations In the North Atlantic 

basins, New York to York River during water year 1956 Continued

605

1956 Continued 

Streams on Long Island Continued

slope

Stream

Rattlesnake Brook. . . .

East Branch Orowoc 

Creek.

West Branch Orowoc 

Creek.

Wllletts Creek.......

Santapogue River..... 

Neguntatogue Creek. . .

Do................

Amltyvllle Creek. ....

New Bridge Creek. .... 

Mlllburn Creek.......

Location

Lat 40°44'50", long 73°08'45", 50 ft below 

State Highway 27 and l£ miles northwest of 

Oakdale, Suffolk County.

let, 80 ft above State Highway 27 A and 1-J 

miles north of Great River, Suffolk County.

Lat 40°43'40", long 73°13'20", at culvert on 

State Highway 27A, at Islip, Suffolk County.

Lat 40°44'00", long 73°13'30", at culvert on 

Moffitt Blvd., i mile west of Islip, Suffolk County.

State Highway 27 A, £ mile west of Islip, 

Suffolk County.

on State Highway 27A, i mile east of West 

Islip, Suffolk County, and lj miles east 

of Babylon.

State Highway 27A, in Babylon, Suffolk 

County, I mile below gaging station at 

Babylon. 

Lat 40°41'00", long 73°21'05", at culvert 

on State Highway 27A, 1 mile east of Lindenhurst, Suffolk County, and £ mile below gaging station at Lindenhurst. 

Lat 40°41'15", long 73°22'10", at culvert on 

East Hoffman Ave., in Lindenhurst, Suffolk 

County.

State Highway 27A, in Lindenhurst, Suffolk County.

State Highway 27A, In Lindenhurat, Suffolk 

County.

Lat 40°40'15", long 73°24'50", 100 ft above 

State Highway 27A, at Amityville, Suffolk 

County.

State Highway 27A, in Nassau County, £ mile 

west of Amityville, Suffolk County.

State Highway 27A, in Seaford, Nassau 

County.

State Highway 27A, i mile west of Seaford, 

Nassau County.

Lat 40"39'40", long 73°32'25", at bridge on 

State Highway 27A, in Merriok, Nassau 

County, 2£ miles east of Preeport.

bridge on State Highway 27A and i mile east 

of Baldwin, Nassau County.

bridge on Poxhurst Rd. , at Baldwin, Nassau 

County.

Lake view Ave. , J mile north of Rock vl lie 

Centre, Nassau County.

bridge on Mill Rd. and 1 mile southwest of 

Valley Stream, Nassau County.

Measured 

previously 

(water 

years )

1944-55

1948-55 

1947-55

1953-55

1953-55

1948, 

1952-55

1952-55 

1953-55

1953-55 

1949,

1953-55

1953-55 

1953-55

1953-5'5

1953-55

Date

Nov. 12 

Feb. 20 

May 15 

Aug. 28 

Sept. 6

Feb. 2 

May 15 

Aug. 16

Nov. 25 

Jan. 31 

May 12 

Aug. 15

Oct. 31 

Jan. 31 

May 12 

Aug. 18

Nov 9

Jan. 31 

May 22 

June £8 

Aug. 15

Apr. 5 

June 2

Apr. 4

Jan. 6 

Apr. 4 

June 28

Nov. 7 

Feb. 27 

May 22 

Aug. 30

Feb. 27 

May 22 

Aug. 30

Nov. 7

Apr. 4 

June 28

Nov. 9 

Apr. 4 

June 28

Apr. 4 

July 20

Feb. 8 

Apr. 21 

July 3

Feb. 8 

Apr. 21 

July 3

Nov. 7 

Feb. 8 

Apr. 21 

July 3

Jan. 23

Mar. 9 

Apr. 21 

July 3

Mar. 9 

Apr. 21 

July 3

Oct. 31

Jan. 27 

Apr. 28 

July 3

Feb. 8 

Apr. 28 

July 12

Discharge 

(cfs)

35.9 

22.9 

15.6 

9.25 

13.0

4.77 

5.30 

3.67

6.48 

3.35 

3.56 

1.43

14.6 

8.49 

8.38 

4.96

2.67 

2.80 

2.19 

1.55

2.43

4.24 

3.99

21.4

8.25 

15.3 

10.5

7.00 

3.32 

1.78 

1.80

5.20 

3.92 

4.11

2.87

2.33 

1.71

5.84 

5.86 

4.28

5.96

7.56 

5.45

4 04

2.94 

3.77 

2.38

2.46 

3.17 

1.61

13.2 

10.3 

14.7 

10.4

14.0

19.5 

9.77 

14.0

2.82

4.72 

5.62 

5.56

7.70

4.81 

7.30 

7.84

4.02 

4.26

2.13
606 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins, New York to York River during water year 1956--Contlnued

Streams on Long Island Continued

Streams

Lake Ronkonkoma 

Inlet.

Location

bridge on West Valley Stream Blvd. , in 

Valley Stream, Nassau County, and 550 ft 

below gaging station at Valley Stream.

Lat 40°49'55", long 73°07'35", 100 yds southeast of Smlthtown Blvd. and 1/5 mile west 

of Lake Ronkonkoma, Suffolk County.

Measured 

previously 

(water 

years )

1948-49, 

1953

Date

Peb. 8 

Apr. 28 

July 12

ft! Oct. 12

Discharge 

(cfs)

8.78 

10.1 

6.87

.94 

.84 

.76

Hudson River basin, N. Y.

Stream

Jessup River.

Boreas River.

Schroon River

Trout Brook. .

West Branch

Sacandaga

River.

Kennyetto

Creek.

Qlens Palls

feeder.

Moses Kill .

White Creek. .

Little Hoosic

River.

Owl Kill.. ...

Anthony Kill.

Mohawk River.

Sauquolt

Creek.

Tributary to

Indian Lake..

Hudson River.

.... do .......

Schroon River

Sacandaga

River.

Sacandaga

Reservoir.

Hudson River.

.... do .......

Black Creek. .

Hoosic River.

....do.......

Hudson River.

....do.......

Mohawk River.

Location

Lat 43°34'56", long 74°Z4'Z4 Ir , at

bridge on State Route 10, 6.0

miles northwest of Speculator.

Lat 43°53'31", long 74°00'57", at

bridge on State Route 10, 1.6

miles northwest of Aiden Lair.

Lat 43°52'30", long 73°44'Z5", at

bridge on State Route 73, 0.6

mile west of Severance.

Lat 43°43'39", long 73"49'Z8", at

bridge on State Route 9, at

Pottersville.

Lat 43°Z2'11", long 74°19'27",

former gaging station at highway bridge at Blackridge.

Lat 43°03'57", long 74°09'48",

former gaging station, 1.8

miles east of Broadalbln.

Lat 43°18'37", long 73°37'03",

gage Z at Qlens Palls, 3.4

miles below head of feeder

canals.

Lat 43°12'12", long 73°33'06", at

bridge, 3.Z miles northeast of

Port Miller.

Lat 43°09'07", long 73°Z1'18", at

bridge on dirt road, Z.I miles

southwest of Salem.

Lat 4Z°38'01", long 73°Z1'Z3", at

bridge on State Route ZZ, at

Cherryplain. 

Lat 42°57'08", long 73°ZZ'57", at

bridge on State Route 67, at

Eagle Bridge.

Lat 42°55'05", long 73°42'53", at

4th bridge above State Route 146,

1.8 miles above mouth at Mechanicville.

Lat 43 0 Z1'18", long 75°Z3'OZ", at

bridge at Hillside.

Lat 43°04'28", long 75*17 '12", at

bridge on State Routes 5 and 12

at New Hartford.

Drainage 

area 

(sq ml)

40.0

51.7

173

99.1

210

28. 3

-

37 9

48.6

5.60

56.4

62.4

48.8

43.4

Measured 

previously 

(water 

years )

1954

1911-16

1939-46,

1949-53

1927-55

1955

1911 ' 1949

1954-1955

1946

1955

Date

Aug. 15

Aug. 28

July 16

Aug. 14

Aug. 28

July 17

Aug . 14

Aug. 28

July 16

Aug. 14

Aug. 27

July 16

Aug. 15

Aug. 29

Aug. 16

Aug. 29

Oct. 7

Oct. 13

Oct. 14

Oct. 28

Nov. 17

May 25

June 1

June 6

June 8

June 15

June 22

June 29

July 6

July 13

July 20

July 24

July 27

Aug. 3

Aug. 10

Aug. 17

Aug. 24

Aug. 31

Sept. 7

Sept. 14

Sept. 21

Sept. 28

Sept. 28

July 17

Aug. 13

Aug. 27

July 17

Aug. 13

Aug. 27

Apr. 4

Apr. 30

July 17

Aug. 13

Aug. 27

Aug. 16

Aug. 30

July 20

Aug. 9

Sept. 5

Aug. 8

Sept. 4

Discharge 

(cfs)

*13.9

*14.7

80.4

*9.96

*12.0

168

33.1

31.2

101

*14.0

*13.1

319

*27.7

*23.2

*5.99

*7.97

162

187

158

154

191

146

149

144

131

140

124

136

154

133

143

134

141

141

124

143

154

132

136

143

140

147

141

22.1

*1.50

*2.39

36.7

*6.79

*6.88

54.8

125

25.7

*9.11

*8.52

*10.6

*12.5

*28. 7

*14.4

39.4

*23.7

36.9

* Base flow.

a Measurement made June 15, 1954.

b Measurement made Sept. 29, 1954.
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 607

Discharge measurements made at points other than gaging stations in the North Atlantic slope 

basins, New York to York River during water year 1956 Continued

Hudson River basin, N. Y. Continued

Stream

Moyer Creek. .

Vest Canada

Creek.

East Canada

Creek.

Canajoharie

Creek.

Do........

Schoharie

Creek.

East Kill... .

West Kill, , .

Batavla Kill.

Cobleskill

Creek.

North

Chuctanunda

Creek.

Normans Kill.

Moordener

Kill.

Vloman Kill

Kinds rhook

Creek.

Taghkanlc

Creek.

Roeliff

Jansen

Kill.

Bashbish

Brook.

Esopus Creek.

Woodland

Creek.

Bush Kill. . . .

Esopus Creek.

Do........

Saw Kill. ....

Esopus Creek.

* Base flow

Tributary to

Mohawk River.

.... do .......

.... do .......

Mohawk River.

.... do .......

. ...do.... ...

Schoharie

Creek.

.... do .......

.... do .......

. . ..do. ......

....do.......

Mohawk River.

Hudson River.

.... do .......

....do.......

Stockport

Creek.

Claverack

Creek.

Hudson River.

Roeliff

Jansen

Kill.

Hudson River.

Esopus Creek.

do

Hudson River.

.... do .......

Esopus Creek.

Hudson River.

Location

Lat 43°02'30", long 75°04'ie", at

bridge on State Route 55, at

Frankfort .

Lat 43°23 1 47", long 74°51'35", at

bridge on State Route 8, at

Nobleboro.

Lat 43°09'14", long 74°42'45", at

bridge at Emmonsburg .

Lat 42°50'48", long 74°36'02", at

bridge on State Route 10, 0.6

mile north of Ames.

Lat 42°54'19", long 74°34'18", at

steel footbridge on Mill St., at

Canajoharle.

Lat 42°12'49", long 74°13'10", at

bridge on Bridge St., at Hunter.

Lat 42°14'57", long 74°18'11", at

bridge, 1.3 miles above mouth

and 1.2 miles northeast of

Jewett Center.

Lat 42°12'42", long 74°23'16", at

bridge on State Route 42, at

West Kill.

Lat 42°17 '36", long 74°18'19", at

bridge, 0.2 mile south of State

Route 23, 1.6 miles southeast of

Ashland.

Lat 42°40'23", long 74°15'16", 3.0

miles northeast of Schoharie.

Lat 42°40'51", long 74°27'56", at

bridge on State Route 7, 1.0

mile east of CoblesVcill.

Lat 42°58'56", long 74"08'42", at

bridge, 0.5 mile northeast of

Hagaman.

Lat 42°45'53", long 74°00'10", at

bridge on State Route 406, at

Pine Grove.

Lat 42°32'27", long 74°43'09", at

bridge at Brookvlew.

Lat 42°32'58", long 73°46'14", at

bridge on State Route 144, at

Cedar Hill.

Lat 42°30'22", long 73°30'26", at

former gaging station, at bridge

on State Route 66, at East

Nassau.

Lat 42°12'59", long 73°45'35", at

bridge on County Road 29, 1.3

miles southwest of Claverack.

Lat 42°09'13", long 73°31'19", at

bridge off State Route 22, 1.8

miles south of Hillsdale.

Lat 42°06'59", long 73°30'30", at

bridge, 0.7 mile southeast of

Copake Palls.

Lat 42°07'01", long 74°22'50", at

bridge on State Route 28, 0.5

mile west of Allaben.

Lat 42°04'46", long 74°19'57", at

bridge, 1.0 mile west of

Phoenicia.

Lat 42°04'56", long 74°18'58", at

bridge on State Route 28, at

Phoenicia.

Lat 41°55'45", long 74°03'55", at

bridge on State Route 209, at

Hurley.

Lat 41°58'50", long 74°00'30", at

bridge, 1.1 miles southeast of

Sawklll.

Lat 41°58'46", long 74°00'52", at

bridge, 0.9 mile southeast of

Sawklll.

Lat 41°59'40", long 73°59'55", at

bridge, at Lake Katrine.

Drainage 

area 

(sq ml)

21.8

192

101

49.2

68.4

39.5

35.2

21.2

51.2

96.9

118

30.3

41.2

29.7

29.8

116

83

27.5

15.8

65.3

20.5

33.5

300

326

41.6

369

Measured 

previously 

(water 

years)

1950,1954

1946

1949,1950

1951-53,

1955

1951,1955

1953,1955

1906,

1949,1950

1949,1950

1954

1952,

1954,1955

1892-1894,

1949

1949,1950

1949,1950

1955

1941

1955

1951-52,

1955

1951

1954

1951,1954

1954

Date

July 11

Aug. 8

Sept. 4

July 20

Aug. 9

Sept . 5

July 20

Aug. 9

Sept. 5

Sept. 25

July 12

Aug. 10

Sept. 4

Aug. 2

Aug. 28

Aug. 1

Aug. 28

Aug. 1

Aug. 28

Aug. 1

Aug. 28

July 13

Aug. 17

Aug. 30

July 13

Aug. 17

Aug. 30

July 12

Aug. 10

Aug. 29

July 13

Aug. 17

Aug. 30

July 18

Aug. 21

Aug. 31

Sept. 11

July 18

Aug. 21

Aug. 31

July 18

Aug. 20

Sept. 10

July 18

Aug. 20

Sept. 10

July 18

Aug. 20

Sept. 10

July 31

Aug. 27

July 31

Aug. 27

July 31

Aug. 27

Aug. 17

Aug. 16

July 31

Aug. 16

Aug. 29

Aug. 16

Discharge 

(cfs)

8.08

»3.41

»4.72

*131

*34.9

679

*44.1

*29.6

87.7

12.1

 6.65

»3.93

*5.51

10.8

 6.04

 3.83

»2.28

 3.45

*.94

 4.16

»2.09

5.64

*3.36

»6.95

5,04

 1.55

 4.50

 7.39

*25.4

*22.9

1.76

*.20

».48

*6.50

1.50

6.06

*.62

*32.3

6.45

17.7

*20.1

»2.22

*4.37

 8.70

 1.83

»2.79

*7.23

 1.73

*1.57

*27.0

 11.3

 9.61

 4.22

*16.7

 6.03

 9.46

 19.6

 7.46

*4.36

*3.29

 24.4
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations In 

basins. New York to York River during water year 1956-

Hudson River basin, N. Y. Continued

the North Atlantic slope 

-Continued

Stream

Platteklll

Creek.

EsopuB Creek.

Saw Kill... ..

Do.. ......

Sandburg

Creek.

Homowack

Kill.

Sandburg

Creek.

West Branch

Beer, Kill.

Beer Kill....

Vernooy Kill.

Rochester

Creek.

Peters Kill..

Coxing Kill

Tin Brook. . . .

Do... .....

Shawangunk

Kill.

Do........

Landsman Kill

Do ........

Fallsburg

Creek.

Crum Elbow

Creek.

Fall Kill

Quassaio

Creek.

Gldneytown

Creek.

Whortlekill

Creek.

Flshklll

Creek.

Sprout Creek.

Clove Creek. .

Tributary to

Esopus Creek.

Hudson River.

....do.......

....do.......

Rondout Creek

Sandburg

Creek.

Rondout Creek

Beer Kill....

Sandburg

Creek.

Rondout Creek

....do.......

.... do .......

....do.......

Wallklll

River.

.... do .......

... .do. ......

....do.......

Hudson River.

.... do .......

. .. .do. ......

... .do...... .

.... do .......

....do.......

Quassaie

Creek.

Flshklll

Creek.

Hudson River.

Flshklll

Creek.

....do.......

Location

Lat 42*01'12", long 73°59'53", at

through way bridge, 0.5 mile

above mouth and 1.5 miles southwest of Mount Marion.

Lat 42*02'16", long 73°58'26",

former gaging station, at Mount

Marion.

Lat 41°58'15", long 73°49'19", at

bridge on State Route 199, at

Rock City.

Lat 42°00'14", long 73°52'50", at

bridge on Linden Ave., 0.5 mile

north of Red Hook.

Lat 41°40'01", long 74°26'20", at

bridge, 0.6 mile northwest of

Spring Glen.

Lat 41°39'33", long 74°25'46", at

bridge, at Ulster-Sullivan

County line, 100 ft east of

State Route 209, at Spring Glen.

Lat 41"42'54", long 74°23'21", at

Canal Street Bridge, at Ellenvllle.

Lat 41°43'32", long 74°24'54", at

bridge on Old Greenfleld Park

Rd., at Ellenvllle.

Lat 41°43'20", long 74'24'07", at

bridge on Cape Rd., at Ellenville.

Lat 41°45'28", long 74°21'30", at

bridge on State Route 209, at

Wawarslng.

Lat 41°47 l <t6", long 74"14'42", at

bridge, 0.6 mile north of State

Route 209, 0.9 mile west of

Accord.

Lat 41°47'52", long 74°12'41", at

bridge on State Route 209, 0.3

mile east of Accord.

Lat 41°49'54", long 74°06'39", at

bridge off State Route 213, 1.0

mile easb of High Falls.

Lat 41°33'41", long Tfll'Ol", at

Highland Avenue Bridge, at

Walden.

Lat 41"34'22", long 74°11'00", at

bridge on State Route 208, 0.8

mile north of Walden.

Lat 41*37 "10", long 74°17'37",

former gaging station, 0.5 mile

northeast of Fine Bush.

Lat 41°41'12", long 74°10'28", ab

bridge at Ganahgote, 0.5 mile

above mouth.

Lat 41"55'22", long 73°54'46", at

bridge on State Route 9, at

Rhlnebeck.

Lat 41°52'58", long 73"55'37", at

Dutchess County Bridge R 14, 2.9

Lat 41°53'33", long 73°54'52", at

bridge on Fox Hollow Rd. , 2.4

miles south of Rhlnebeck.

Lat 41°47'24", long 73°55'53", at

bridge on Hyde Park-East Park

road, 0.3 mile east of Hyde

Park.

Lat 41°42'52", long 73°54'16", at

Dutchess County bridge PO-7, on

Salt Point Turnpike, Poughkeepsle.

Lat 41°31'28", long 74"03'24", at

bridge on Powder Mill Rd. , 0.4

mile northeast of State Route

52 and 1.1 miles northwest of

Newburgh.

Lat 41°31'24", long 74"02'09", at

bridge at junction of Gldney

Ave. and Germantown Rd. , at Newburgh.

Lat 41°34'49", long 73°48'51", at

bridge on State Route 82, 0.4

mile south of Hopewell Junction.

Lat 41°34'18", long 73°48'28", at

bridge on State Route 376, 0.4

mile west of Hopewell Junction.

Lat 41°35'50", long 73°50'42", at

bridge on Montmart Rd. , 1.1

miles southwest of Fishklll

Plains.

Lat 41°29'18", long 73°54'28", at

bridge off Route 9, 3.0 miles

southeast of Beacon.

Drainage 

area 

(sq ml)

43.0

419

6.01

22.0

27.3

12.7

56.7

20.3

43.3

23.5

50.0

7.20

12.6

20.8

21.0

102

147

10.9

22.7

3.58

18.6

16.6

15.5

10.1

7.78

56.4

49.3

13.1

Measured 

previously 

(water 

years)

1907-13,

1951

1952,1955

1943,1949

1950,1955

1955

1949,1950

1952,1955

1955

1924-32,

1939,1949,

1950

1943,1946,

1952,1955

1902

Date

Aug. 17

Aug. 17

July 12

Aug. 30

July 12

Aug. 29

July 17

Aug. 28

July 17

Aug. 28

July 18

Aug. 2

July 19

Aug. 2

July 19

Aug. 3

July 18

Sept. 14

July 30

Sept. 12

Aug. 6

Sept. 12

July 30

Sept. 12

July 18

Aug. 29

July 18

Aug. 29

July 18

Aug. 29

Aug. 3

Aug. 29

July 11

Aug. 29

July 11

Aug. 29

July 11

Aug. 29

July 11

Aug. 6

July 11

Aug. 6

July 18

Aug. 29

July 18

Aug. 29

July 13

Aug. 31

July 13

Aug. 31

July 13

Aug. 31

July 13

Aug. 31

Discharge 

(cfs)

*3.67

*27.0

*.78

.43

*8.95

5.78

*12.7

*4.07

*14.2

*8.13

*37.9

*22.4

*5.52

*4.07

*7.11

*4.56

*11.5

6.13

*18.3

7.58

 1.61

1.03

*2.49

1.55

*2.77

*2.12

*3.04

*1.62

*33.3

*13.4

*26.9

*17.4

3.35 *.75

4.20

*1.70

.71 *.07

4.27

*1.46

4.56

*2.06

*16.8

*.45

*4.08

*.40

*6.34

*4.23

*37.2

*9.16

*13.3

*3.45

*7.69

*2.04

* Base flow.
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 609

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins, New York to York River during water year 1956 Continued

Hudson River basin, N. Y. Continued

Stream

Woodbury 

Creek.

Moodna Creek.

Creek.

Peeksklll

Hollow 

Creek.

Brook.

Brook .

Focantlco 

River.

Sheldon Brook

Tributary to

Moodna Creek. 

Hudson River.

....do.......

Qary Brook. . . 

Hudson River.

Location

Lat 41°24'05", long 74°04'48", at 

bridge off State Route 32, 0.3 

mile south of Mountainvllle. 

Lat 41°24'33", long 74°04'26", at 

bridge on county road, 0.1 mile 

below confluence with Woodbury 

Creek and 0.5 mile northeast of 

Mountainvllle.

bridge off State Route 9, at 

Annsvllle.

bridge, 1.2 miles northeast of 

Annsvllle.

bridge on Hill Rd. , 0.4 mile 

northeast of Van Cortlandvllle.

bridge, £ mile northwest of 

Buchanan .

bridge off State Route 9, 0.7 

mile northeast of Oscawana. 

Lat 41°05'23", long 73°51'43", at 

bridge on U. S. Highway 9, at 

North Tarry town. 

Lat 41°03'36\ long 73°51'46", at 

bridge on U. S. Highway 9, 1,2 

miles south of Tarrytown.

bridge on Saranac St., off TJ. S. 

Highway 9, 0.5 mile northeast of 

Dobbs Ferry.

Drainage 

area 

(sq ml)

21.9 

154

15.6

15.7 

2.12

Measured 

previously 

(water 

years)

1953

Date

July 19 

Aug. 27

July 19 

Aug. 27

Sept. 6 

Sept. 22

Sept. 29 

Sept. 29

Discharge 

(ofa)

*6.87 

*4.68

*36.0 

*13.3

 2.97

 as. 4

*18.8 

 32.4

*.21

.71 

.41 

.46

Fassale River basin, N. Y.

Ramapo River.

Stony Brook. .

Ramapo River.

Pompton River

Ramapo River.

Pompton River

Lat 41°18'24", long 74°08'14", at

bridge on county road, 0.5 mile

east of Harrlman.

Lat 41*09 '46", long 74°11'07", at

bridge off State Route 17, 0.8

mile northeast of Sloatsburg.

Lat 41°08'26", long 74°10'08", at

bridge, at International Fremont

Machine Co., at Ramapo.

11.7

16.0

87.3

1952

1936

July 19

Aug. 27

July 19

Aug. 27

July 19

Aug. 27

 4.45

 1.14

*9.28

*24.7

*84.6

*33.5

Shark River basin, N. J.

Shark River. .

Wreck Pond

Brook.

Manasquan

River.

Batavla Kill.

East Branch

Delaware

River.

Dry Brook. . . .

Bush Kill....

Oumaer Brook.

Wlllsey Brook

Basher Kill..

Atlantic

Ocean.

Atlantic

Ocean.

Atlantic

Ocean.

East Branch

Delaware

River. 

Delaware

River.

Bush Kill.. ..

East Branch

Delaware

River.

Basher Kill..

....do.......

Heverslnk

River.

Lat 40°12'10", long 74°04'53", at

bridge on county road, 1.1 miles

north of Glendola.

Wreck Pond Brook basin, N. J

Lat 40°09 '11", long 74°03'43", at

Osborne Pond Dam, at State Highway 254, 1.8 miles west of

Spring Lake.

Manasquan River basin, N. J.

Lat 40°09'35", long 74°07'03", at

county bridge, 2.6 miles downstream from gaging station at

Squankum,

Delaware River basin

Lat 42°10'55", long 74°35'56", at

bridge on State Route 30, at

Kelly Corners, N. Y. 

Lat 42*10'56", long 74°36'06", at

county highway bridge, at Kelly

Corners, N. Y.

Lat 42°08'24", long 74°36'15", at

county highway bridge No. 21,

0.6 mile above mouth, at Arkvllle, N. Y.

Lat 42*09 '00", long 74° 36 '17", at

bridge, 0.8 mile east and 200 ft

south of State Route 28, at Arkvllle, N. Y.

Lat 41°35'58", long 74°28'25", at

bridge on State Route 209, 1.8

miles northeast of Wurtsboro,

N. Y.

Lat 41°34'28", long 74°28'38", at

culvert, at St. Joseph's Cemetery on Henry St., at Wurtsboro,

N. Y.

Lat 41°34'16", long 74°28'28", at

bridge below old State Route 17,

at Wurtsboro, N. Y.

.

-

-

19.9

74.7

32.9

46.4

6.92

5.85

12.1

1951,1955

1949,1950

1951,1955

1955

July 23

July 31

Aug. 7

Sept. 13

Sept. 21

July 31

Aug. 7

Sept. 12

Sept. 21

July 23

July 31

Aug. 7

Sept. 13

Sept. 21

Aug. 1

Aug. 28

Aug. 1

Aug. 28

July 31

Aug. 27

July 31

Aug. 27

July 17

Aug. 28

Aug. 28

Sept. 12

July 17

Aug. 28

 20.0

*9.38

16.2

*7. 16

*6.80

*6.36

11.7

*4.87

*5.89

 123

*58.6

111

 36.9

*42.8

 2.39

 1.60

no. 9

*5.31

 13.6

*5.68

 7.31

 4.18

*3.24

*.49

«.18

 2.40

*8.87

 4.45
610 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins, New York to York River during water year 1956--Contlnued 

Delaware River basin Continued

Stream

Basher Kill. .

Monocacy

Creek.

Saucon Creek.

Unnamed

tributary.

Saucon Creek.

Unnamed

tributary.

Do ........

Saucon Creek.

Unnamed

tributary.

Saucon Creek.

Do.. ......

South Branch

Saucon

Creek.

Unnamed

tributary.

Do. .......

Do ........

Polk Valley

Run.

Silver Creek.

Black River, .

Delaware

Division

Canal.

West Branch

Schuylklll

River.

Mackeysburg

Creek.

Thomas son

Creek.

Anchor Creek.

Wheeler Creek

North Fork

West Creek.

South Branch

Naamen

Creek.

Mill Creek.. .

Red Lion

Creek.

Blackbird

Creek.

Tributary to

Neverslnk

River.

Lehlgh River.

.... do .......

Saucon Creek.

Lehigh River.

Saucon Creek.

.... do .......

Lehigh River.

Saucon Creek.

Lehigh River.

.... do .......

Saucon Creek.

... .do. ......

do

.... do .......

.... do .......

do

.... do .......

Lehigh River.

Schuylkill

River.

West Branch

Schuylkill

River.

do

....do...... .

.... do .......

West Creek.

Naaman Creek.

White Clay

Creek.

Delaware

River.

do

Location

Lat 41°27'14", long 74°35'24", at

bridge, 0.8 mile south of Cuddebackville, N. Y.

Lat 40°36'55", long 75°22'45", at

New Street Bridge, Bethlehem,

Pa.

Lat 40°30'40", long 75°26'55", at

Limeport, Pa.

Lat 40°32'00", long 75°27'00", 1.5

miles north of Limeport, Pa.

Lat 40°32'05", long 75 0 27'00", 1.6

miles .north of Lime port, Pa.

Lat 40°32'50", long 75°26'10", 0.4

mile southwest of Lenark, Pa.

Lat 40°32'40", long 75°25'40", 0.5

mile southeast of Lenark, Pa.

Lat 40°32'50", long 75°25'30", on

U. S. Route 309, 0.5 mile southeast of Lanark, Pa. , at former

gaging station site.

Lat 40°33'15", long 75°25'00", 0.8

mile east of Lanark, Pa.

Lat 40°33'00", long 74°24'55",

1 mile east of Lanark, Pa.

Lat 40°33'05", long 75°24'20",

£ mile southwest of Friedensville, Pa.

Lat 40°23'20", long 75°23'20",

2,000 ft above mouth and 0.8

mile southeast of Friedensville,

Pa., at former gaging station

site.

Lat 40°33'25", long 75°21'45", 0.3

mile northeast of Spring Valley,

Pa.

Lat 40°33'35", long 75°21'25", at

Bingen, Pa.

Lat 40°33'40", long 75°20'45", 0.5

mile northeast of Leithsville,

Pa.

Lat 40°34'10", long 75°20'25",

1 mile south of Hellertown, Pa.

Lat 40°34'45", long 75°20'40", at

mouth, at Hellertown, Pa.

Lat 40°34'55", long 75°21'00", 0.5

mile southwest of Hellertown,

Pa.

At Durham aqueduct, 1 mile south

of Riegelsville, Pa.

Lat 40°42'58", long 76°19'38",

0.25 mile north of Glendower,

Pa.

Lat 40°43'09", long 76°18'13", 1.3

west of Heckscherville, Pa.

Lat 40°42'22", long 76°17'50", 1.3

miles southwest of Heckscherville, Pa.

Lat 40°44'32", long 76°15'57", 1.7

miles northeast or Heckscherville; Pa.

Lat 40°43'44", long 76°15'08", 0.4

miles north or Coal Castle, Pa.

Lat 40°42'25", long 76°21'16", 0.9

mile west of Mount Plesant, Pa.

Lat 39°49'00", long 75°29'40", at

dam 800 ft above bridge on Marsh

Rd. and 2.2 miles west or Claymont, Del.

Lat 39°42'50", long 75°40'00", at

highway bridge, 1.2 miles west

of Stanton, Del.

Lat 39°36'20", long 75°39'55", at

bridge on State Highway 7, 0.2

mile south of Red Lion, Del.

Lat 39°22'00", long 75°40'10", at

highway bridge, 0.6 mile southwest of Blackbird, Del.

Drainage 

area 

(sq mi)

66.0

49.6

3.71

1.82

7. 19

1.47

1.91

12.0

.74

13.6

14.7

10.6

.93

.90

1.28

2.43

2.70

4.27

.65

.17

.34

.07

5.49

.20

3.83

12.3

3.20

3.85

Measured 

previous ly 

(water 

years)

1945,1955

1948-53

1948-53

,

1952-55

1955

1931-34,

1955

1955

1952-53,

1955

Date

July 17

Sept. 13

Oct. 5

Oct. 18

Nov. 29

Dec. 28

Jan. 31

Mar. 5

May 22

July 23

Aug. 14

Sept. 26

Nov. 3

Nov. 2

Nov. 2

Nov. 2

Nov. 2

Nov. 2

Nov. 2

Nov. 2

Nov. 2

Nov. 2

Nov. 2

Nov. 3

Nov. 3

Nov. 3

Nov. 3

Nov. 4

Nov. 4

Feb. 1

Mar. 1

28

May 2

Sept. 6

Feb. 8

Feb. 9

July 25

Sept. 19

Feb. 9

Aug. 10

Sept. 19

Feb. 13

Aug. 2

Feb. 15

Aug. 2

Sept. 14

Oct. 5

Nov. 17

June 14

Aug. 13

Oct. 5

Nov. 17

June 14

Aug. 13

Oct. 6

Nov. 17

June 14

Aug. 13

Oct. 6

Nov. 17

June 15

Aug. 13

Discharge 

(cfs)

*54.6

*42.5

*136

237

*49.0

*55.7

40

*53.7

*49.0

171

*43.7

*92.8

*4.92

*.91

*6.64

*.25

*.008

*6.45

*.27

*6.89

*6.10

*11.0

*.97

*1.02

*.30

*1.21

*.31

*3.45

*.68

60.0

.3

48.6

61.8

65.5

*.06

*.18

*.18

.07

*.47

*.27

.24

.13

*.08

*1.30

*.25

*.ll

*.650

*1.35

*1.61

*1.04

*7.16

*7.86

*7,45

*6.28

*1.40

*.902

*.436

*.584

 1.94

 2.00

 1.18

 .946
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 611

Discharge measurements made at points other than gaging stations in the North Atlantic slope 

basins , New York to York River during water year 1956 Continued

Smyrna River basin, Del.

Stream

Providence 

Creek.

Tributary to

Smyrna River.

Location

Lat 39°18'05", long 75°38'28", at 

highway bridge, 0.8 mile north 

of Clayton.

old dam 500 ft, above highway 

bridge, 1 mile south of Smyrna, 

and 1.3 miles east of Clayton.

Drainage 

area 

(sq mi)

11.8

Measured 

previously 

(water 

years)

1955

Date

Oct. 5 

Nov. 17 

June 15 

Aug. 13

Nov. 15 

June 15 

Aug. 27

Discharge 

(cfs)

*4.56 

*4.58 

*4.39 

*3.63

*2.31 

*1.51 

*1.94

St. Jones River basin, Del.

Pork Branch. .

Maidstone

Branch.

St. Jones

River.

St. Jones

River.

Delaware Bay.

Lat 39°11'56", long 75°34'40", at

highway bridge, 0.8 mile northwest of Dupont, and 1.3 miles

above mouth. 

Lat 39°11'18", long 75°34'04", at

highway bridge, 0.4 mile southwest of Dupont and 0.6 mile

above mouth.

Lat 39°10'04", long 75°31'19", 200

ft below Silver Lake Dam at

Dover.

7.50

17.3

31.5

1955

1955

1955

Oct. 6

Nov. 15

June 15

Aug. 27 

Oct. 6

Nov. 15 

June 15

Aug. 27

Oct. 6

Nov. 15

June 15

Aug. 27

*1.49

*2.65

*.757

*.702 

*3.98

*6.39

*3.10

*1.52

*11.8

*11.8

*13.0

*4.47

Murderkill River basin, Del.

Murderkill

River.

Browns Branch

Hudson Branch

Pratt Branch.

Double Run, . .

Delaware Bay.

Murderkill

River.

Spring Creek.

.... do .......

.... do .......

Lat 38°58'33", long 75°34'02", at

bridge on U. S. Highway 13, 2.2

miles south of Felton.

Lat 38"57'31", long 75°30'33", at

highway bridge, 2.9 miles north

of Houston and 4.4 miles northeast of Harrington.

Lat 39°01'56", long 75°31'30", at

highway bridge, 1.8 miles southeast of Canterbury and 1.9 miles

above mouth.

Lat 39°00'37", long 75°31'46"1, at

highway bridge, 2.2 miles above

mouth and 2.6 miles east of

Pelton.

Lat 39°03'16", long 75°29'43", at

highway bridge, 1.5 miles southwest of Magnolia and 2.3 miles

above mouth.

13.6

12.4

8.40

3.29

5.68

1931-34,

1952-53,

1955

1955

1955

1955

1955

Oct. 6

Nov. 17

Feb. 7

June 14

Aug. 13

Oct. 6

Nov. 17

June 21

Aug. 13

Oct. 7

Nov. 15

June 14

Aug. 27

Oct. 6

Nov. 17

June 14

Aug. 13

Oct. 7

Nov. 15

June 14

Aug. 27

*6.00

*7.80

*51.0

*6.95

*5.89

*10.9

*10.0

*10.1

*9.53

*5.83

*5.51

*6.66

*4.82

*1.94

*1.60

*1.26

 1.17

*3.29

*2.74

*2.36

*3.08

Cedar Creek basin, Del.

Cedar Creek. . Delaware Bay. Lat 38°51'03", long 75°25'05", at 

highway bridge, 1.2 miles south 

of Lincoln and 3.0 miles north

of Ellendale.

7.21 1955 Oct. 5 

Nov. 15 

June 13

Aug. 13

*11.6 

*10.4

*11.4

*9.40

Broadkill River basin, Del.

Pemberton 

Branch.

Beaverdam 

Creek.

Wagamons Pond

Broadkill 

River.

Lat 38°46'26", long 75°20'29", at 

highway bridge, 1.7 miles above 

Wagamons Pond Outlet and 1.5 

miles west of Milton.

Lat 38°45'41", long 75°16'03", at 

highway bridge, 2.5 miles east 

of Milton and 3.1 miles above

mouth.

6.68

6.10

1955

1955

Oct. 5 

Nov. 15 

June 13 

Aug. 13

Oct. 5 

Nov. 15 

June 13

Aug. 13

*5.47 

*4.59 

*10.4 

*7.22

*7.78 

*7.68 

*9.32

*10.4

Indian River basin, Del.

Pepper Creek. Indian River. Lat 38°32'50", long 75°14'40", at

bridge on State Highway 26, at

Dagsboro.

8.78 1955 Oct. 5

Nov. 15

June 13

Aug. 13

*6.49

*9.35

*2.93

*2.94

Nanticoke River basin, Del.

Deep Creek. . .

Tyndall

Branch.

Nanticoke

River.

Deep Creek. . .

Lat 38°40'01", long 75°31'02", at

highway bridge, at Old Furnace,

5.6 miles northeast of Seaford.

Lat 38°37'54", long 75°29'30", at

highway bridge, 2.7 miles above

mouth, 1.4 miles northeast of

Hardscrabble, and 6.5 miles east

of Seaford.

33.0

12.7

1955

1955

Oct. 5

Nov. 15

June 13

Aug. 13

Oct. 5

Nov. 15

June 13

Aug. 13

*19.6

*30.7

*21.0

*13.6

*9.66

*13.2

*8.73

*6.02

Base flow.
612 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins, New York to York River during water year 1956 Continued

Nantlcoke River basin, Del. Continued

Stream

Butler Mill 

Branch.

Elliot Pond 

Branch.

Tributary to

Lewes Creek..

James Branch.

Location

Lat 38-37'56", long 75°39'35", at 

highway bridge, 2.2 miles north 

of Woodland and 2.6 miles west

of Seaford.

Lat 38"34'39", long 75'31'42", at 

highway bridge, 400 ft upstream 

from Beaverdam Branch and 2.9

miles northeast of Laurel.

Drainage 

area 

(sq mi)

6.96

8.55

Measured 

previously 

(water 

years)

1955

1955

Date

Oct. 6 

Nov. 17 

June 13

Aug. 13

Oct. 5 

Nov. 15 

June 13

Aug. 13

Discharge 

(cfs)

*7.60 

*5.82 

*4.64

*3.65

*5.83 

*8.49 

*5.04

*2.56

Susquehanna River basin

Cherry Valley

Creek.

Schenevus

Creek.

Wharton Creek

Snake Creek..

Little Snake

Creek.

Pleasant

Brook.

West Branch

Tloughnloga

River.

East Branch

Tloughnloga

River.

West Branch

Tloughnloga

River.

Merrill Creek

Castle Creek.

Big Choconut

Creek.

Nantlcoke

Creek.

Catatonk

Creek.

Cayuta Creek.

Canacadea

Creek.

Michigan

Creek.

Meada Creek. .

Post Creek. . .

Sings ing

Creek.

Susquehanna

River.

.... do .......

Unadllla

River.

Susquehanna

River.

. ...do... ....

Chenango

River.

East Branch

Tloughnloga

River.

Tloughnloga

River.

.... do .......

Otselic River

Chenango

River.

Susquehanna

River.

.... do .......

Owego Creek. .

Susquehanna

River.

Canlsteo

River.

Cohocton

River,

....do.......

Chemung River

.. . .do.... ...

Lat 42°35'34", long 74-55'42", at

bridge off State Route 166, 0.6

mile east of Mllford, N. Y. 

Lat 42-32'45", long 74°50'00", at

Tannery St. off Main St., State

Route 7, at Schenevus, N. Y.

Lat 42°37 '34", long 75"18'24", at

bridge on State Route 80, 1.3

miles east of New Berlin, N. Y.

Lat 42°00'53", long 75"47'20", at

bridge on State Route 7-A, at

Corbettsvllle, N. Y.

Tat 42-01 '40", long 75°48'01", at

bridge on State Route 7, 0.5

mile south of Conklln, N. Y.

Lat 42°41'59", long 75°32'15", at

bridge on dirt road, 0.5 mile

north of State Route 80, 2.5

miles northwest of Sherburne,

N. Y.

Lat 42°47'06", long 75°57'47", at

bridge In Keeney, N. Y. , 3.4

miles north of Cuyler, N. Y.

Lat 42°37'35", long 76°08'56", at

bridge on county road off State

Route 13, 2.2 miles northeast of

Cortland, N. Y.

Lat 42°36'27", long 76°10'01", at

bridge on State Route 13, at

Cortland, N. Y.

Lab 42"24'24", long 75"58'39", ab

bridge on dirt road, 1.2 miles

northwest of Upper Lisle, N. Y.

Lat 42°10'06", long 75"54'01", at

bridge on Sbate Route 11, 2.4

miles north of Blnghamton, N. Y,

at Hlnmans Corners, N. Y.

Lat 42°04'57", long 76-03'49", at

bridge on State Route 17, 0.4

mile west of Vestal, N. Y.

Lat 42°05 '31", long 76°05'23", at

bridge on State Route 17-C, 0.8

mile west of Endlcott, N. Y.

Lat 42°08'35", long 76*17 '47", at

bridge on county tfoad off State

Roube 96, 3.3 miles northwest of

Owego, N. Y.

Lat 42°00'32", long 76-31'33" at

bridge on Ithaca St., at

Waverly, N. Y.

Lat 42°17 '19", long 77*44'52", at

bridge on dirt road, off State

Route 21, 2.1 miles southwest of

Almond, N. Y.

Lat 42'13'50", long 77°12'23", at

bridge on State Route 333, 0.2

mile above mouth and 0.6 mile

west of Campbell, N. Y.

Lat 42*11'35", long 77-08'31", at

bridge on Meads Creek Rd, off

State Route 15, 0.8 mile north

of Cooper Plains, N. Y.

Lat 42°10'10", long 77°02'50", at

footbridge, at New York Central

RR., off State Route 414, 0.6

mile northeast of Corning, N. Y.

Lat 42*08 '29", long 76°54'26", at

bridge on State Route 17, 1.3

miles east of Big Plats and 4.1

miles northwest of Elmlra, N. Y.

90.4

57.8

89.8

75.0

30.4

38.6

35.0

193

100

20.8

25.2

57.0

112

147

140

17.1

22.7

68.5

31.9

21.3

1935

1953

1938-55

July 17

July 18

July 17

July 18

July 18

July' 17

July 16

July 16

July 16

July 19

July 19

July 19

July 19

July 20

Oct. 21

Nov. 21

Dec. 15

Jan. 17

Feb. 21

Mar. 12

Mar. 14

Apr. 13

May 15

July 16

Aug. 9

Sept. 17

July 11

Sept. 17

Aug. 2

Sept. 19

Aug. 2

Sept. 19

Aug. 2

Sept. 20

Aug. 1

Sept. 20

*16.0

*11.4

28.4

*7.20

*1.97

*4.39

*15.4

*58.5

*53.7

*2.45

*6.31

*6.58

»20.3

109

413

267

*93.8

*73.6

*146

844

534

768

228

*41.4

*24.6

*11.0

5.06

11.5

*3.23

26.9

*7.51

22.8

*2.39

13.8

*7.09

*17.1
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins, New York to York River during water year 1956 Continued

613

Susquehanna River basin Continued

Stream

Seely Creek. .

Keyser Creek.

Mill Creek,

Do........

Colllns Creek

Pig Farm

Creek.

Saw Mill

Creek.

Hicks Creek..

Brown Creek.

Mosquito

Creek.

Grove Run. . . .

Woodrock Run.

Unnamed

tributary.

Do........

Do. .......

Do ........

Do........

Three Springs

Creek.

Swatara Creek

Tributary to

Chemung River

Lackawanna

River.

....do.......

....do.......

Mill Creek. . .

St. Johns

Creek.

.. ..do.. .....

Susquehanna

River.

.... do .......

West Branch

Susquehanna

River.

S Innemahon Ing

Creek.

First Pork

Slnnema honing Creek.

West Branch

Big Run.

East Branch

Big Run.

Unnamed tributary to

Locust

Creek.

.... do .......

Mahanoy

Creek.

Aughwlck

Creek.

Susquehanna

River.

Location

Lat 4Z°03'03", long 76°46'32", at

bridge on State Route 427, 1.7

miles south of Elmlra, N. Y.

Lat 41°26'35", long 75°42'16", at

Scranton, Pa., 0.8 mile north of

West Mountain Sanatorium and 4.5

miles above mouth.

Lat 41°18'32", long 75°44'36",

1 mile south of Dupont, Pa. , and

3.5 miles above mouth.

Lat 41°18'29", long 75°44'36", l.l

miles south of Dupont, Pa., and

3.3 miles above mouth.

Lat 41° 18 '54", long 75°44'30", 0.4

mile above mouth and 0.8 mile

south of Dupont, Pa.

Lat 41°24'39", long 75°43'50",

0.75 mile above mouth and 2.2

miles northwest of Taylor, Pa.

Lat 41°24'04", long 75°44 1 42", 0.8

mile above mouth and 2.2 miles

northwest of Taylor, Pa.

Lat 41°20'07", long 75°50'07", 1.3

miles northwest of Exeter, Pa.,

and 2.6 miles above mouth.

Lat 41°15'50", long 75°56'47", at

Gregory, 0.75 mile northwest of

Larksvllle, Pa., and 2 miles

above mouth.

Lat 41 "07 "05", long 78 "06 "40", at

mouth, at Karthaus, Pa.

Lat 41°19'00", long Ta'Oe'lO", at

mouth, at Slnnemahonlng, Pa.

Lat 41°24'05", long 78°01'05", at

mouth, 0.6 miles below First

Fork Dam and 7^ miles northeast

of Slnnemahonlng, Pa.

Lat 40°47'18", long 76°22'24", 0.1

mile southwest of State Highway

54, 0.5 mile west of Germantown

and 1.1 miles northwest of Ashland, Pa.

Lat 40°47'23", long 76°22'23", 0.1

mile north of State Highway 54,

0.75 mile northwest of Germantown, and 1 mile northwest of

Ashland, Pa.

Lat 40°46'16", long 76°24'17", 0.5

mile southeast of Merrlan and

1.6 miles west of Locust dale,

Pa.

Lat 40°46'16", long 76°24'29", 0.5

mile south of Merrlan and 1.8

miles west of Locustdale, Pa.

Lat 40°45'43", long 76°24'38",

0.35 mile west of Mowry and

1.4 miles west of Lavelle, Pa.

Lat 40°12'45", long 77°55'30", at

mouth, 3.5 miles northeast of

Three Springs, Pa.

Lat 40°39'56", long 76°21'20", 0.7

mile northwest of bridge over

U. S. Highway 209 and 1 mile

north of Newtown, Pa.

Drainage 

area 

(sq ml)

144

.71

1.62

2.84

1.37

.40

.25

1.24

.70

69.4

7.39

.90

.12

.14

.17

.14

.21

30.7

2.09

Measured 

previously 

(water 

years)

1950

^

1940-55

1940,

1942-43,

1945,1948,

1950-51

1953-54

Date

Aug. 1

Sept. 20

Apr. 7

Aug. 16

Feb. 19

Apr. 11

Feb. 19

Apr. 28

May 6

June 8

Feb. 5

Apr. 6

May 29

Sept. 5

Feb. 22

Aug. 30

Feb. 21

Aug. 30

Apr. 9

Apr. 10

Apr. 10

Apr. 11

June 13

Aug. 8

Aug. 31

Sept. 5

Mar. 16

Mar. 5

May 21

July 30

Aug. 31

Sept. 21

Nov. 3

Dec. 8

Jan. 14

Feb. 14

Mar. 29

Apr. 24

June 5

July 17

Sept. 1

Mar. 27

Mar. 14

May 16

Aug. 1

Sept. 19

May 15

Aug. 1

Aug. 28

Sept. 19

May 15

July 4

Sept. 19

May 15

July 4

Sept. 19

Aug. 1

Sept. 19

Nov. 18

Feb. 23

July 24

Mar. 29

July 17

Discharge 

(cfs)

*10.5

 26.0

5.70

*.40

8.12

10.0

16.6

6.10

7.39

*5.75

».36

3.70

*.64

*.10

1.47

*.05

.90

*.02

3.90

4.68

8.70

6.49

*.71

*.51

1.61

.31

*.44

1.55

».88

*.20

.94

.37

53.9

*87.4

 20.0

*82.6

239

210

246

145

59.3

*14.3

3.14

.33

».18

*.03

.27

*.16

*t.01

*.05

.35

.17

*.12

.32

.35

*.06

*.29

*.12

*7Z.8

*48.6

93.4

4.26

2.20

* Base flow, 

t Estimated.

505690 O - 59 - 40
614 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations in the North Atlantic slope 

basins, New York to York River during water year 1956 Continued

Susquehanna River basin Continued

Stream

Martin's

Creek.

Middle Creek.

Coal Run. ....

Broad Creek. .

Island Branch

Deer Creek. . .

Do. .......

Tributary to

Good Spring

Creek.

... .do. ......

Middle Creek.

Susquehanna

River.

Deer Creek. . .

Susquehanna

River.

.. ..do. ......

Location

Lat 40°38'35", long 76°24'25", 0.5

mile northeast of Donaldson and

1.4 miles northwest of Tremont,

Pa.

Lat 40°39'17", long 76°22'36", 1.5

miles west of Newtown and 1.9

miles northeast of Tremont, Pa.

Lat 40°38'54", long 76°23'24", 1.3

miles north of Tremont, Pa.

Lat 39°41'16", long 76°22'24", 400

ft below bridge on State Highway

165, at Pylesville, Md.

Lat 39°42'14", long 76°30'54", at

bridge on State Highway 517,

1 mile east of Norrisville, Md.

Lat 39°39'57", long 76°26'32", at

bridge on State Highway 165, 2i

miles south of Harkins, Md.

Lat 39"37 r OO", long 76'12'06", at

bridge on State Highway 161, at

Wilson Mill, Md.

Drainage 

area 

(sq mi)

0.37

1.37

.08

11.4

2.11

76.3

161

Measured 

previously 

(water 

years)

Date

Mar. 30

July 17

Mar. 29

July 17

July 24

Mar. 30

July 17

June 7

June 7

June 7

June 7

Discharge 

(cfs)

1.29

.63

7.63

3.86

*2.12

.70

.24

*10.1

*3.04

*67.8

*244

Swan Creek basin, Md.

Swan Creek. . . Chesapeake 

Bay.

Lat 39°31'21", long 76°08'33", at 

bridge on U. S. Highway 40, at 

Swan Creek.

15.7 June 7 *3.58

Bush River basin, Md.

Grays Run. . . . 

Bynum Run. . . .

Winters Run. .

Church Creek. 

Bush River. . .

Otter Point 

Creek.

Lat 39°29'18", long 76°12'52", at 

bridge on State Highway 7, 0.9 

mile west of Stepney. 

Lat 39°28'19", long 76°16'01", at 

bridge on State Highway 7, 

 J mile southwest of Bush.

bridge on State Highway 7, 0.2 

mile northeast of Bush. 

Lat 39°30'55", long 76°22'10", at 

bridge on U. S. Highway 1, l£ 

miles southwest of Bel Air.

bridge on State Highway 7, 0.6 

mile northwest of McComas.

5.35 

23.4 

11.1

37.0 1954-55

June 8 

June 6

June 7

*1.20 

*17.5 

*5.39

*32.6

Gunpowder River basin, Md.

Unnamed

tributary.

Georges Run. .

Gunpowder

Palls.

Little Palls.

Greene

Branch.

Western Run

Blackrock Run

Beaver Dam

Run.

Do. .......

Gunpowder

Palls.

Little Gunpowder

Palls.

Sawmill

Branch.

Little Gunpowder

Palls.

South Branch

Gunpowder

Palls.

Prettyboy

Reservoir

Gunpowder

River.

Gunpowder

Palls.

Loch Raven

Reservoir.

... .do. ......

Western Run. .

.. ..do. ......

.... do .......

Gunpowder

River.

.... do .......

Little Gunpowder

Palls.

Gunpowder

River.

Lat 39°41'18", long 76°53'48", at

bridge on State Highway 30, at

Melrose.

Lat 39°36'55", long 76°47'26", at

bridge on State Highway 25,

below Beckleysville Rd., i mile

northeast of Armacost.

Lat 39°36'32", long 76°38'07", at

bridge on Big Palls Rd., 0.8

mile northwest of Blue Mount.

Lat 39°38'23", long 76°39'36", at

bridge on U. S. Highway 171,

below railroad bridge, at

Parkton.

Lat 39°30'44", long 76°35'23", at

bridge on State Highway 145, 1.1

miles northwest of Sunnybrook. 

Lat 39"30'25", long 76°45'04", at

bridge on Mantua Mill Rd. , at

Mantua.

Lat 39°32'36", long 76°44'00", at

bridge on State Highway 401,

5 mile southeast of Coopersville. 

Lat 39°28'30", long 76°39'55", at

bridge on Baltimore-Harrisburg

expressway, lj miles west of

Cockeysville.

Lat 39°29'08", long 76°38'45", at

bridge on U. S. Highway 111, at

Cockeysville.

Lat 39°25'38", long 76°26'42", at

bridge on U. S. Highway 1,

1 mile northeast of Germantown.

Lat 39°32'37", long 76°31'53", at

bridge on State Highway 146,

£ mile south of Hess.

Lat 39°31'20", long 76°32'30", at

bridge on Manor Rd. , 1 mile

northwest of Sweet Air.

Lat 39°25'28", long 76°22'41", at

bridge on State Highway 7, 0.3

mile northwest of Bradshaw.

.12

13.4

91.8

34.8

1.57

33.2

9.38

9.14

20.8

339

16.5

.78

55.3

1955

May 26

May 25

June 6

June 6

June 6

May 26

May 26

June 5

June 5

June 6

June 6

June 6

June 6

*0.12

*9.66

*92.1

*29.8

*1.69

*29.2

*10.4

*10.4

*23.0

*151

*16.8

*.93

*64.9
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 615

Discharge measurements made at points other than gaging stations In the North Atlantic slope 

basins, New York to York River during water year 1956--Contlnued

Patapsco River basin, Md.

Stream

Aspen Run. . . .

Unnamed 

tributary.

Do........

South Branch 

Fatapsco 

River. 

Hay Meadow 

Branch.

Glllls Falls.

South Branch 

Patapsco 

River. 

Gwynns Falls.

Do...... ..

Tributary to

East Branch. . 

West Branch. . 

Liberty Lake. 

Morgan Run. . .

Fatapsco 

River.

South Branch 

Fatapsco 

River.

Patapsco 

River.

Middle Branch 

Fatapsco 

River.

Location

Lat 39°36'09", long 76°55'29", at 

bridge on State Highway 482, at 

Brummel. 

Lat 39°35'35", long 76°59'53", at 

bridge on U. S. Highway 140, lj 

miles north of Westminster. 

Lat 39°31'28", long 76°50'15", at 

bridge on State Highway 30, 0.9 

mile southwest of Boring. 

Lat 39°30'10", long 77°03'04", 

below bridges on State Highway 

27, 1.4 miles northeast of 

Dennlngs. 

Lat 39°21'26", long 77°08'20", at 

bridge on State Highway 144,

Lat 39°21'04", long 77°06'28", at 

bridge on U. S. Highway 40, 0.8 

mile northwest of Poplar Springs. 

Lat 39°27'01", long 77°04'00", at 

bridge on State Highway 26, 0.6 

mile west of Winfield. 

Lat 39°21'35 , long 77°03'44", at 

bridge on State Highway 94, at 

Woodbine. 

Lat 39°23'28", long 76°45'56", at 

at bridge on McDonogh Rd. , at 

McDonogh. 

Lat 39°20'31", long 76°43'37", at 

bridge on State Highway 26, at 

Lochearn.

Drainage 

area 

(sq ml)

1.74 

.30 

.64 

2.19

1.93 

1.09 

.55 

32.2 

19.2 

32.8

Measured 

previously 

(water 

years)

Date

May 26 

May 25 

May 26 

May 26

June 7 

May 26 

May 26 

May 26 

May 26 

May 26

Discharge 

(cfs)

*1.66 

*.19 

*.62 

*1.69

*.80 

».71 

*.28 

*22.3 

 14.0 

*18.0

Patuxent River basin, Md.

Unnamed

tributary.

Little

Patuxent

River.

Do........

Unnamed

tributary.

Middle

Patuxent

River.

Terrapin

Branch.

Middle

Patuxent

River.

Unnamed

tributary.

Middle

Patuxent

River.

Hammond

Branch.

Patuxent

River.

Little

Patuxent

River.

Patuxent

River.

Cattail Creek

Patuxent

River.

. ...do.. .....

Little

Patuxent

River.

... .do. ......

Middle

Fatuxent

River.

Little

Patuxent

River.

Middle

Fatuxent

River.

Little

Patuxent

River.

....do.......

Chesapeake

Bay.

Fatuxent

River.

Chesapeake

Bay.

Lat 39°18'57", long 77°03'41", at

bridge on State Highway 96,

% mile west of Carrs Mill.

Lat 39"16'42", long 76'51'H", at

bridge on U. S. Highway 40, 0.4

mile east of Pine Orchard.

Lat 39°14'21", long 76°50'51", at

bridge on U. S, Highway 29,

J mile west of Columbia.

Lat 39°11'19", long 76"52'10", at

bridge on State Highway 196, 0.4

mile northeast of Atholton.

Lat 39°17'14", long 76°57'33", at

bridge on State Highway 32, 1.1

miles south of West Friendship.

Lat 39°18'09", long 76°57'16", at

bridge on State Highway 144, at

West Friendship.

Lat 39°15'20", long 76°55'31",

1,000 ft below bridge on State

Highway 98. at Mental Health

Farm and 2J miles northwest of

Elloak.

Lat 39°11'45 , long 76°56'45", at

bridge on U. S. Highway 29,

£ mile south of Clarksvllle.

Lat 39°10'06", long 76°53'04", at

bridge on State Highway 196, 1.2

miles southwest of Atholton.

Lat 39°09'13 , long 76°53'35", at

bridge on State Highway 196, 0.7

mile northeast of Scaggsville.

Lat 39°00'36", long 76°44'10", at

bridge on unimproved road,

£ mile northeast of Bowie Race

Track and 2j miles east of Bowie.

Lat 39°01'24", long 76°42'07", at

bridge on State Highway 424,

^ mile west of Conaways.

Lat 38°57'15", long 76°41'36", at

bridge on U. S. Highway 50,

4 miles northwest of Davldsonvllle.

3.93

7.03

21.5

1.36

11.4

1.12

22.1

2.65

53.7

3.01

-

-

348

1955

1955

- 1955

May 26

May 26

May 25

May 25

May 26

May 26

May 26

May 26

May 25

May 25

Oct. 18

Nov. 3

Oct. 20

Nov. 3

Oct. 18

Nov. 3

*2.47

*4.20

*11.4

*.49

*6.13

*.73

*12.6

*1.20

*28.8

*1.53

141

74.8

122

93.1

335

191

Potomac River basin

Reeds Creek

Spring.

Hatchery

Spring.

Reeds Creek. .

Johnson Run. .

Lat 38°44'10", long 79°21'00",

3 miles northwest of Ruddle,

Pendleton Co. , W. Va.

Lat 38°59'10", long 79°10'00", 1.2

miles upstream from confluence of

Johnson Run and Sawmill Branch

and 2.6 miles west of Petersburg,

W. Va.

-

-

1944-46

1950-55

Jan. 18

Feb. 8

Mar. 6

Apr. 11

May 3

May 23

June 6

July 17

Sept. 18

Oct. 13

2.57

19.1

10.3

16.3

10.6

6.95

13.1

Z.89

3.07

1.36
616 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN OAOINO STATIONS

Discharge measurements made at points other than gaging stations In the North Atlantic 

basins, New Xork to York River during water year 1956 Continued

Potomac River basin Continued

Stream

Big Spring. . .

War Branch

Muddy Creek

Blacks Run. . .

Middle River.

Martin Spring

Gllpln

Springs.

Chamblln

Branch.

Plney Creek. .

Big Pipe

Creek.

Bear Branch

(Upper).

Big Pipe

Creek.

Do ........

Meadow Branch

Unnamed

tributary.

Meadow Branch

Wolfplt

Branch.

Little Pipe

Creek.

Unnamed

tributary.

Difficult

Run.

Broad Run. . . .

Tributary to

Trout Run. . . .

Muddy Creek. .

Grassey Creek

South Pork

Shenandoah

River.

.... do .......

Chamblln

Branch.

Shenandoah

River.

Monocacy

River.

Double pipe

Creek.

Big Pipe

Creek.

Double Pipe

Creek.

.... do .......

Big Pipe

Creek.

Meadow Branch

Big Pipe

Creek.

Little Pipe

Creek.

Double Pipe

Creek.

Little Pipe

Creek.

Potoraac River

Occoquan

Creek.

Location

Lat 39°03'45", long 78°37'45",

near Wardensville, W. Va.

Lat 38°28'28", long 78°59 T 14", at

bridge on U. S. Highway 33,

1 mile west of Hinton, Va.

Lat 38°25'52", long 78°53'02", at

bridge on U. S. Highway 11, at

Harrisonburg, Va.

Lat 38°13'20", long 79°06'45", at

Pranks Mill, near Staunton, Va.

Lat 38°35'15", long 78°31'30", on

State Highway 650, near U. S.

Highway 340, 1 mile west of

Stanley, Va.

Lat 39°03'35", long 7 "53 '35", at

Appalachaln Trail, mile southwest of Mount Weath r, Va.

Lat 39°03'55", long 7 °53'55", on

State Highway 605, mile west

of Mount Weather, Va.

Lat 39°39'56", long 77°10'04",

400 ft northwest of bridge on

State Highway 194 and 0.6 mile

northeast of Taneytown, Md.

Lat 39°39'39", long 76°56'54", at

bridge on State Highway 496, at

Bachman Mills, Md.

Lat 39°38'02", long 77°59'22", at

bridge on State Highway 496, 0.9

mile southeast of Mount Pleasant,

Md.

Lat 39°40'02", long 77°01'12", at

bridge on U. S. Highway 140, at

Union Mills, Md.

Lat 39°40'01", long 77°06'23",

below Silver Run, J mile west of

Pipe Creek, Md.

Lat 39°35'25", long 77°01'57", at

bridge on State Highway 97, at

Roop Mill, { mile southeast of

Fountain Valley, Md.

Lat 39°36'28", long 77 "04 '25", at

bridge on State Highway 32,

i mile west of Frlzzleburg, Md.

Lat 39°36'32", long 77°06'52", at

bridge on State Highway 84, 1.1

miles north of Uniontown, Md.

Lat 39°33'57", long 77°08'44", at

bridge on State Highway 75, at

Linwood, Md.

Lat 39°34'20", long 77°10'35", at

bridge on State Highway 75, at

Union Bridge, Md.

Lat 39°35'321', long 77°13'16", at

bridge on State Highway 641, at

Mlddleburg, Md.

Lat 38°52'29", long 77°20'18", at

State Highway 665, near Fairfax,

Va.

Lat 38°50'05", long 77°48'15", at

State Highway 17, 7 miles north

of Warrenton, Va.

Drainage 

area 

(sq mi)

-

-

-

-

_

-

-

22.9

9.39

1.35

30.9

49.9

2.01

.40

12.6

2.00

40.4

.15

-

-

Measured 

previously 

(water 

years )

1946

Date

Jan. 25

Feb. 15

Apr. 18

May 16

May 24

June 13

July 11

Aug. 22

Mar. 26

Mar. 27

Sept. 19

Sept. 19

Feb. 24

Feb. 24

Feb. 24

May 25

May 25

May 25

May 25

May 26

May 26

May 25

May 25

May 26

May 26

May 26

Mar. 28

Mar. 27

Sept. 28

Discharge 

(cfs)

5.37

32.3

18.0

16.1

10.7

8.83

6.50

6.83

5.70

2.24

18.3

27.8

3.66

.27

.99

*4.82

*7.10

*1.55

*22.5

*32.5

*1.45

*.ll

*7.38

*1.52

*26.3

*0

2.39

3.12

7.27

Rappahannock River basin, Va.

Browns Run . . .

Reedy Creek. .

Garnetts

Creek.

Marsh Run. . . .

Mattaponi

River.

Marracosslc

Creek.

Lat 38°32'37", long 77°43'52", at

bridge on State Highway 17, near

Bealton.

Lat 37"52'55", long 77°21'35", at

bridge on U. S. Highway 301, 3.2

miles north of Dawn.

Lat 37°44'50", long 76°58'12", at

bridge on State Highway 14, near

St. Stephens Church.

.

-

-

Mar. 27

Sept. 28

Mar. 28

Mar. 28

Sept. 27

1.60

16.0

16.2

21.5

65.0

* Base flow.
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 617

The following table contains determinations of peak discharge made at crest stage by 

Indirect methods or by current meter or computed from rating curve at points other than 

regular gaging stations.

Determinations of peak discharge during water year October 1955 to September 1956

Stream

Big Brook. . . .

Tannery Brook

East Kill.. ..

West Kill, , . .

Batavla Kill.

Bear Kill

Pox Creek. . . .

Normans Kill.

Moodener Kill

Catsklll

Creek.

Elghtralle

Creek.

Catsklll

Creek.

Kaaterskill

Creek.

Bushnellvllle

Creek.

Woodland

Creek.

Beaver Kill

Bush Kill

Esopus Creek.

Shawangunk

Kill.

Quassaie

Creek.

Peeksklll

Hollow

Creek.

Beeohy Bottom

Cedar Pond

Brook.

East Branch

Croton

River.

Quaker Brook.

East Branch

Croton

River.

Tributary to

Mohawk River.

... .do. ......

Black River

Canal.

Schoharle

Creek.

....do.......

.... do .......

....do.......

....do.......

Hudson River.

.... do .......

....do.......

Catsklll

Creek.

Hudson River.

Catsklll

Creek.

Esopus Creek.

.... do .......

....do... ....

....do.......

Hudson River.

Wallklll

River.

Hudson River.

....do..... ..

Popolopen

Brook.

Hudson River.

Croton River.

East Branch

Croton

River.

Croton River.

Location

Lat 43°19'13", long 75°20'31",

alongside State Route 274, 1.1

miles above mouth and 1.9 miles

southeast of North Western,

N. Y.

Lat 43°19'41", long 75°22'15", at

a reach, 0.3 mile above mouth

and 1.0 mile southwest of North

Western, N. Y.

Lat 43°20'56", long 75°20'35", at

a reach, 1.15 miles northeast of

North Western, N. Y.

Lat 42°14'57", long 74°18'11", at

bridge, 1.3 miles above mouth

and 1.2 miles northeast of

Jewett Center, N. Y.

Lat 42"13'45", long 74°23'31",

alongside State Route 42, 1.4

miles north of West Kill, N. Y.

Lat 42°17'44", long 74°21'07",

alongside State Route 23, 1.0

mile southwest of Ashland, N. Y.

Lat 42°21'49", long 74°28'36", 0.9

mile east of Grand Gorge, N. Y. ,

and 2.5 miles above mouth.

Lat 42°38'39", long 74°11'58", at

county bridge, 1.4 miles northwest of West Berne, N. Y.

Lat 42°38'53", long 73°50'46", at

bridge on New Scotland Rd. ,

State Route 85, 1.4 miles northeast of Sllngerlands, N. Y.

Lat 42°33'04 n , long 73*41 '45", 1.3

miles northeast of Brookvlew,

N. Y.

Lat 42°26'41", long 74°12'31",

alongside State Route 145, at

Preston Hollow, N. Y.

Lat 41°26'08", long 74°07'22", at

a culvert on South Westerlo Rd. ,

0.3 mile southeast of Medusa,

N. Y.

Lat 42°19'14", long 74°00'49", at

Woodstock Dam, 1.5 miles northwest of Cairo, N. Y.

Lat 42°10'29", long 74°01'47",

alongside State Route 23A, 0.5

mile above Route 32A, at Palenvllle, N. Y.

Lat 42°07'25", long 74°24'04",

alongside State Route 42, 0.3

mile above mouth and 0.4 mile

northwest of Shandaken, N. Y.

Lat 42°04'46", long 74°20'00", 0.2

mile above mouth and 1 mile west

of Phoenicia, N. Y.

Lat 42°03'25", long 74°15'33",

alongside State Route 212, 1.4

miles northeast of Mount Tremper, N. Y.

Lat 41°57'51", long 74°18'45", 0.7

mile above mouth of Malthy Hollow Brook and 0.7 mile southwest

of West Shakan, N. Y.

Lat 42°04'21", long 73°56'56", at

Cantlne Paper Co. dam, at Saugertles, N. Y.

Lat 41*41 '12", long 74°10'28", at

bridge at Ganahgote, N. Y.

Lat 41°29'40", long 74°01'51", at

dam above State Route 32 bridge,

at Newburgh, N. Y.

Lat 41°18'52", long 73°54'32", at

water plant, 1.8 miles northeast

of Peeksklll, N. Y.

Lat 41°18'37", long 74*01'28", at

water supply reservoir, 2.0

miles southwest of Bear Mountain,

N. Y.

Lat 41°13'56", long 74°00'12", 1.3

miles southwest of Stony Point,

N. Y., 2.4 miles above mouth.

Lat 41°30'49", long 73°35'53", at

bridge on State Route 311, 0.4

mile east of Patterson, N. Y.

Lat 41°29'02", long 73°34'15", at

bridge on East Branch Rd. , 2.7

miles southeast of Patterson,

N. Y.

Lat 41°24'05", long 73°35'34", at

bridge on old State Route 22,

1.6 miles northeast of Brewster,

N. Y.

Drainage 

area 

(sq ml)

18.1

.45

.19

35.2

26.8

62.1

19.3

74.6

169

29.0

47.5

13.3

242

14.2

11.4

20.5

22.2

9.24

425

147

44.5

48.2

8.68

15.0

17.6

11.8

79.5

Measured 

previously 

(water 

years)

1951,1955

1953,1955

1954

1955

1951,1955

1955

1943,1946,

1952,1955

1953

1954

Date

Sept. 6

Sept. 6

Aug. 31

Oct. 16

Oct. 16

Oct. 16

Oct. 16

Oct. 16

Oct. 16

Oct. 17

Mar. 6

Oct. 16

Oct. 16

Oct. 16

Oct. 16

Oct. 15

or 16

Oct. 15

or 16

Oct. 15

or 16

Oct. 15

or 16

Oct. 16

Oct. 16

Oct. 16

Oct. 15

or 16

Oct. 15

or 16

Oct. 16

Oct. 16

Oct. 16

Oct. 15

Discharge 

(ofs)

2,610

178

197

9,920

4,880

15,500

2,840

6,470

13,300

6,710

1,390

3,980

1,710

40,900

4,820

1,830

6,240

3,930

3,670

23,900

14,000

1,890

3,200

2,010

2,740

2,480

2,780

8,130
618 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Determinations of peak discharge during water year October 1955 to September 1956--Continued

Stream

Ramapo River.

Unnamed

tributary.

Castle Creek.

Mudllck

Creek.

Nantlcoke

Creek.

Wyncoop Creek

Catatonk

Creek.

Burhelght

Creek.

Corey Creek

tributary.

Beaver Dam

Run.

East Branch

Herbert

Run.

Gwynns Falls.

Patuxent

River.

Little

Antietam

Creek.

Tributary to

Passalc River

Wright Brook.

Chenango

River.

Seely Creek. .

Susquehanna

Creek.

C hemung River

Owego Creek. .

Dean Creek. . .

Corey Creek. .

Western Run. .

Patapsco

River.

.... do .......

Chesapeake

Bay.

Antietam

Creek.

Location

Lat 41°10'41", long 74°11'14",

alongside Erie RR. , on Orange

and Rockland County line,

1 mile south of Tuxedo, N. Y.

Lat 42°20'58", long 74°48'42", 0.5

mile above mouth, 1.2 miles

northwest of Bloomville, N. Y.

Lat 42°09'47", long 75°53'48", 0.2

mile above U. S. Highway 11 and

State Route 12 bridge, 0.4 mile

above mouth and 4. 6 miles north

of Binghamton, N. Y.

Lat 42°01'16", long 76°54'58", 1.1

miles above mouth and 1.3 miles

northwest of Seely Creek, N. Y.

Lat 42°08'54", long 76°04'01", at

bridge at Union Center, N. Y.

Lat 42°00'50", long 76°36'32", at

culvert on Dry Brook Rd. , 0.6

mile northeast of Chemung, N. Y.

Lat 42°12'52", long 76°29'42" J at

Owego Street Bridge, in Spencer,

N. Y.

Lat 42°12'22", long 76°31'33", at

bridge on State Route 34, 1.6

miles southwest of Spencer, N. Y.

Lat 41°47'15", long 71°01'00", at

culvert on Route 6, 0.2 mile

above mouth and 3.7 miles east

of Mansfield, Pa.

Lat 39°29'17", long 76°38'35", at

Pennsylvania RR. , bridge at

Cockeysvllle, Md.

Lat 39°14'24", long 76°41'33", at

bridge on Tom Day Blvd. , In

Arbutus, Md.

Lat 39°20'46", long 76°44'04", at

bridge on Essex Rd. , in Villa

Nova, Md.

Lat 38°57'15", long 76°41'36", at

bridge on U. S. Highway 50,

4 miles northwest of Davidsonville, Md.

Lat 39°29 1 14", long 77°41'54", at

Baltimore * Ohio RR. bridge in

Keedysville, Md.

Drainage 

area 

(sq mi)

57.7

2.73

28.8

22.6

89.7

33.7

26.5

1.35

1.54

21.0

2.47

32.5

348

23.6

Measured 

previously 

(water 

years)

1955

Date

Oct. 16

Sept. 23

Oct. 30

Oct. 15

Oct. 15

or 16

Oct. 15

or 16

Oct. 15

or 16

Oct. 15

Oct. 14

July 21

July 20

July 21

July 22

July 20

Discharge 

(ofs)

5,970

2,330

5,530

2,580

9,900

3,000

1,680

597

321

3,950

1,090

5,270

5,880

13,800
INDEX

Page 

Abrams Creek near Winchester, Va...... 492

Absecon Creek at Absecon, N. J........ 172

Accotink Creek, near Accotink Station,

Va.............................. 544

near Annandale, Va.................. 542

Accuracy of field data and computed

results......................... 8-9

Acre-foot, definition of.............. 3

Adams, Mass., Hoosic River at......... 76

Adamsville, Del., Marshy Hope Creek

near............................ 291

Agencies other than Geological Survey,

records collected by............ 13

Albright Creek at East Homer, N. Y.... 327

Alexandria, Va., Cameron Run at....... 540

Four-mile Run at..................... 539

Allentown, Pa., Jordan Creek at....... 236

Little Lehigh Creek near............ 235

Alloway Creek at Alloway, N. J.......273-275

Almond, N. Y., Almond Reservoir near.. 347 

Karr Valley Creek at................ 346

Almond Reservoir near Almond, N. Y.... 347

Anacostia River, Beaverdam Branch, at 

Kenilworth Avenue, Washington, 

D. C............................ 602

Northeast Branch, at Hyattsville,

Md.............................. 602

at Riverdale, Md.................. 535

Northwest Branch at Bladensburg, Md. 602 

near Colesville , Md.............. 536-537

near Hyattsville, Md.............. 538

Annandale, Va., Accotink Creek near... 542 

Long Branch near.................... 543

Annapolis, Md., North River near.....454-455

Antietam Creek near Sharpsburg, Md...495-496 

Aquashicola Creek at Palmerton, Pa.... 233

Archbald, Pa., Lackawanna River at.... 365

Arena, N. Y., Mill Brook at........... 179

Ark, Va., Beaverdam Swamp near........ 572

Arkport, N. Y., Arkport Reservoir

near............................ 344

Canisteo River at................... 345

Arkport Reservoir near Arkport, N. Y.. 344 

Arlington, Vt., Batten Kill at........ 72

Ashland, Va., South Anna River near... 575 

Assunpink Creek at Trenton, N. J...... 249

Atlee, Va., Totopotomoy Creek near.... 577

Aughwick Creek near Three Springs,

Pa.............................. 417

Avondale, Md., Little Pipe Creek at... 521 

Awosting, N. J., Wanaque River at..... 132

Axemann, Pa., Spring Creek near....... 389

Babylon, N. Y., Carlls River at....... 32

Sampawams Creek at.................. 31

Back Creek near Jones Springs, W. Va.. 489 

Barryville, N. Y., Delaware River

near............................ 203

Barton, Md., Savage River near........ 464

Basin Run at Liberty Grove, Md........ 438

Batsto River at Batsto, N. J.......... 170

Batten Kill, at Arlington, Vt......... 72

at Battenville, N. Y................ 73

Battenville, N. Y., Batten Kill at.... 73

Bay Shore, N. Y., Penataquit Creek

at.............................. 30

Beacon, N. Y., Pishkill Creek at...... 119

Beaver Brook near Belvidere, N. J....225-226

Beaver Kill, at Cooks Falls, N. Y..... 188

at Craigie Clair, N. Y.............. 185

near Turnwood, N. Y................. 184

Beaver Swamp Brook near Harrison,

N. Y............................ 16

Beaverdam Branch at Matthews, Md...... 298

Beaverdam Creek near Salisbury, Md...286-287 

Beaverdam Run near Garrisonville,

Va.............................. 555

Beaverdam Swamp near Ark, Va.......... 572

Beech Creek Station, Pa., North Bald

Eagle Creek at.................. 393

Bel Air, Md., Bynum Run at............ 442

Belden, Pa., Dunning Creek at......... 411

Bell Creek at Pranks Mill, near

Staunton, Va..................... 499

Belleville, N. J., Second River at..... 145

Belvidere, N. J., Beaver Brook near...225-226 

Delaware River at.................... 227

Bennett Creek at Park Mills, Md........ 528

Berne, Pa., Schuylkill River at........ 257

Berryville, Va., Opequon Creek near.... 491

Bethesda, Md., Little Falls Branch

near............................. 533

Bethlehem, Pa., Lehigh River at.......238-239

Monocacy Creek at.................... 237

Beulahville, Va., Mattaponi River near. 579 

Big Elk Creek at Elk Mills, Md........304-306

Big Pipe Creek at Bruceville, Md....... 520

Big Spring at Masonville, W. Va........ 480

Bixler Run near Loysville, Pa.......... 422

Black River. See Lamington River.

Black River Canal near Boonville, N. Y. 84

Blackwells Mills, N. J., Millstone

River at......................... 161

Blairstown, N. J., Paulins Kill at..... 222

Bladensburg, Md., Northwest Branch

Anacostia River at............... 602

Blanchard, Pa., Marsh Creek at......... 392

North Bald Eagle Creek at............ 391

Blind Brook at Rye, N. Y............... 15

Blockhouse Creek near English Center,

Pa............................... 395

Bloomington, Md., Savage River near.... 466

Bloomsburg, Pa., Fishing Creek near.... 373

Bloomsbury, N. J., Musconetcong River

near.. ........................... 242

Blue Mine Brook near Wanaque, N. J..... 137

Blue Mount, Md., Little Falls at....... 443

Bond Creek at Dunham Basin, N. Y....... 71

Boonton, N. J., Rockaway River at.....128,129

Boonton Reservoir, N. J., contents

of..............................146,147

Boonville, N. Y., Black River Canal

near............................. 84

Boswells Tavern, Va., Hudson Creek

near............................. 574

Bound Brook, N. J., Raritan River at... 162 

Bower, Pa., West Branch Susquehanna

River at......................... 378

Bowling Green, Va., Mattaponi River

near............................. 5, 578

Brandywine, W. Va., South Fork of South

Branch Potomac River at.......... 481

Brandywine Creek at Wilmington, Del.... 269

Bridgeport, Md., Monocacy River at..... 519

Bridgeton, N. J., Loper Run near....... 176

Bridgeville, Del., Nanticoke River

near............................. 288

Broad Run at Buckland, Va.............. 547

Brodhead Creek at Minisink Hills, Pa... 221 

Bronx River at Bronxville, N. Y........ 19

Bruceville, Md., Big Pipe Creek at..... 520

Brush Creek at Gapsville, Pa........... 412

Buckland, Va., Broad Run at............ 547

Buckton, Va., Passage Creek at......... 510

Bull Run near Manassas, Va............. 548

Burketown, Va., North River near....... 498

Burtonsville, N. Y., Schoharie Creek

at............................... 95

Bush Kill at Shoemakers, Pa............ 218

Buskirk, N. Y., Hoosic River at........ 588

Butternut Creek at Morris, N. Y........ 318

Bynum Run, at Bel Air, Md.............. 442

Cabins, W. Va., North Pork of South

Branch Potomac River at.......... 478

Cacapon River near Great Cacapon,

W. Va............................ 486

Callicoon Creek at CalMcoon, N. Y..... 201

Cameron Run at Alexandria, Va.......... 540

Camp Hill, Pa., Yellow Breeches Creek

near............................. 427

Campbell, N. Y., Cohocton River near... 356 

Canacadea Creek near Hornell,

N. Y............................. 348

619
620 INDEX

Canasawacta Creek near South Plymouth,

N. Y...........................322-323

Canlstear Reservoir, N. J., contents

of.............................146,147

Canisteo River, at Arkport, N. Y...... 345

at West Cameron, N. Y............... 350

below Canacadea Creek, at Hornell,

N. Y............................ 349

Cannonsvl1le, N. Y., Trout Creek at... 196 

Carlls River at Babylon, N. Y......... 32

Carmans River at Yaphank, N. Y........ 25

Carmlchael, Md., Sallle Harris Creek

near............................ 299

Carney, Md., Gunpowder Falls near..... 446

Carsonville, Pa., Clark Creek near.... 5, 424

Castle Spring near Churchville, Va.... 499

Cat Point Creek near Montross, Va..... 569

Catlett, Va., Cedar Run near.......... 546

Catoctln Creek near Mlddletown, Md...514-515 

Catsklll Creek, at Oak Hill, N. Y...... 102

at South Cairo, N. Y...............589-591

Cattail Creek at Roxbury Mills, Md.... 457

Cedar Creek (tributary to Atlantic

Ocean) at Lanoka Harbor, N. J... 169 

Cedar Creek (tributary to North Fork

Shenandoah River) near

Winchester, Va.................. 509

Cedar River below Chain Lakes, near

Indian Lake, N. Y............... 41

Cedar Run, Pa., Pine Creek at......... 394

Cedar Run, near Catlett, Va........... 546

near Warrenton, Va.................. 545

Cedar Swamp Creek at Glen Cove, N. Y.. 20 

Cedarhurst, Md., North Branch Patapsco

River at........................ 449

Centervllle, Pa., Evltts Creek near... 475 

Cfs-day, definition of................ 3

Champlln Creek at Isllp, N. Y......... 29

Chapeltown, Del., Culbreth Marsh

ditch near...................... 295

Chaptlco Creek at Chaptlco, Md........ 556

Charlotte Creek at Davenport Center,

N. Y............................ 311

Chatham, N. J., Passalc River near.... 127

Chemung River at Chemung, N. Y.......358-359

Chenango River, at Greene, N. Y....... 324

at Sherburne, N. Y.................. 321

near Chenango Forks, N. Y........... 333

Chester Creek near Chester, Pa........ 263

Chester River basin, Md., gagingstatlon records In.............300-302

Chestnut Creek at Grahamsville, N. Y.. 105 

Cheswold, Del., Lelpslc River near.... 281

Chlcamacomlco River near Salem, Md.... 294

Chllds, Md., Little Elk Creek at...... 307

China, N. Y., Cold Spring Brook at.... 198

Chopawamslc Creek, Middle Fork, near

Garrisonville, Va............... 553

North Branch, near Independent Hill,

Va.............................. 552

South Branch, near Garrlsonvllle,

Va.............................. 554

Choptank River near Greensboro, Md.... 296

Choptank River basin, Del.-Md.,

gaglng-statlon records In......295-298

Christina River at Coochs Bridge,

Del............................. 264

Church Hill, Md., Southeast Creek at.. 302 

Church View, Va., Dragon Run near..... 571

Churchville, Md., Deer Creek near..... 599

Churchville, Va., Castle Spring near.. 499 

Clnclnnatus, N. Y., Otsellc River at.. 329 

Clark Creek near Carsonville, Pa......5, 424

Claryvllle, N. Y., Never sink River

near............................ 212

Clearfleld Creek at Dlmellng, Pa...... 380

Cliff Lake Reservoir, N. Y., contents

of.............................276,279

Clifton, N. J., Weasel Brook at....... 144

Clinton Corners, N. Y., East Branch

WappLnger Creek near............ 115

Wapplnger Creek near ................ 116

Clinton Reservoir, N. J., contents

of.............................146,147

Cocolamus Creek near Mlllerstown, Pa.. 420 

Codorus Creek, at Spring Grove, Pa.... 431

near York, Pa....................... 433

South Branch, near York, Pa......... 432

Cohocton River, at Cohocton, N. Y..... 353

near Campbell, N. Y................. 356

Cohoes, N. Y., Mohawk River at......... 96-97

Cold Spring Brook (Delaware River

basin) at China, N. Y............ 198

Cold Spring Brook (Streams on Long 

Island) at Cold Spring Harbor, 

N. Y............................. 22

Coldbrook, N. Y., Esopus Creek at...... 103

Colesvllle, Md., Northwest Branch

Anacostla River near............536-537

Colllersvllle, N. Y., Susquehanna

River at......................... 310

Columbia Furnace, Va., Stony Creek at.. 507 

Computations, accuracy of results of... 8-9 

Conestoga Creek at Lancaster, Pa....... 435

Conklin, N. Y., Susquehanna River at... 320 

Conklingville, N. Y., Sacandaga Reservoir at.......................... 63

Connetquot River near Oakdale, N. Y.... 28

Conococheague Creek at Fairview, Md.... 490

Conodoguinet Creek near Hogestown, Pa.. 425 

Contents, definition of................ 3

Control, definition of................. 3

Coochs Bridge, Del., Christina River

at..... .......................... 264

Cooks Falls, N. Y., Beaver Kill at..... 188

Cooperation, record of................. 1-2

Cootes Store, Va., North Fork Shenandoah River at.................... 505

Cortland, N. Y., Tioughnioga River at.. 328 

Corey Creek near Mainesburg, Pa........ 338

Cowanesque River near Lawrenceville,

Pa............................... 342

Crabtree Creek near Swanton, Md........ 465

Craigie Clair, N. Y., Beaver Kill at... 185 

Cranberry Branch near Westminster, Md.. 448 

Crooked Creek at Tioga, Pa............. 341

Cross Fork, Pa., Kettle Creek at....... 386

Crosswicks Creek at Extonville, N. J... 250 

Croton River at New Croton Dam, near

Croton-on-Hudson, N. Y........... 120

Cubic feet per second per square mile,

definition of.................... 3

Cubic foot per second, definition of... 3 

Culbreth Marsh ditch near Chapeltown,

Del.............................. 295

Culpeper, Va., Mountain Run near....... 564

Rapidan River near.................... 567

Cumberland, Md., North Branch Potomac

River near....................... 474

Wills Creek near....................472-473

Cupsaw Brook near Wanaque, N. J ........ 135

Curwensville, Pa., West Branch Susquehanna near....................... 379

Dalmatia, Pa., East Mahantango Creek

near............................. 404

Danville, Pa., Susquehanna River at...375-377 

Data, accuracy of...................... 8-9

explanation of....................... 4-8

Davenport Center, N. Y., Charlotte

Creek at......................... 311

Dawsonville, Md., Seneca Creek at...... 530

Dean Creek at Spencer, N. Y............ 336

Deer Creek, at Rocks, Md............... 439

near Churchville, Md................. 599

DeForest Lake, N. Y., contents of...... 125

DeHart Reservoir, Pa., contents of....440,441

Delaware & Raritan Canal, at Kingston,

N. J. ............................ 247

diversion by......................... 280

Delaware River, above Lackawaxen River

near Barryville, N. Y............ 203

at Belvidere, N. J................... 227

at Montague, N. J.................... 217

at Port Jervis, N. Y................. 211

at Riegelsville, N. J...............243-244

at Trenton, N. J..................... 248

East Branch, at Downsville, N. Y..... 182

at Fishs Eddy, N. Y................ 189

at Harvard, N. Y................... 183

at Margaretville, N. Y............. 177

West Branch, at Delhi, N. Y.......... 190

at Hale Eddy, N. Y................. 200

at Stilesville, N. Y............... 197

at Walton, N. Y.................... 192

Delaware River basin, Del.-N. J.-N. Y.-

Pa., diversions from............. 280

gaging-station records in..........,177-275

reservoirs in.......................276-279

Delhi, N. Y., Little Delaware River near 191
INDEX 621

Page 

Delhi, N. Y., West Branch Delaware

River at........................ 190

Deposit, N. Y., Oquaga Creek at....... 199

Difficult Run near Great Falls, Va.... 531

Dllldown Creek near Long Pond, Pa..... 230

Dlmellng, Pa., Clearfleld Creek at.... 380

Discharge measurements: 

Broadklll River basin............... 611

Bush River basin.................... 614

Cedar Creek basin................... 611

Delaware River basin...............609-611

Gunpowder River basin............... 614

Hudson River basin.................606-609

Indian River basin.................. 611

Long Island, Streams on. ...........603-606

Manasquan River basin............... 609

Murderkill River basin.............. 611

Nantlcoke River basin..............611-612

Passalc River basin................. 609

Patapsco River basin................ 615

Patuxent River basin................ 615

Peak discharges....................617-618

Potomac River basin................615-616

Rappahannock River basin............ 616

St. Jones River basin............... 611

Shark River basin................... 609

Susquehanna River basin............613-614

Swan Creek basin.................... 614

Wreck Pond Brook basin.............. 609

Note. Streams for which only discharge measurements are available 

are not entered by name in this 

index. 

Dixon, Pa., Tunkhannock Creek at...... 364

Dorsey Run near Jessup, Md............ 461

Doswell, Va., North Anna River near... 573 

Downsville, N. Y., East Branch Delaware River at................... 182

Dragon Run near Church View, Va....... 571

Drainage area, definition of.......... 3

Driftwood Branch. See Sinnemahoning

Creek, Driftwood Branch. 

Dryden Creek near Granton, N. Y....... 193

Dunham Basin, N. Y., Bond Creek at/.... 71

Glens Falls feeder at............... 70

Dunning Creek at'Belden, Pa........... 411

Dunraven, N. Y., Platte Kill at....... 178

Dyberry Creek at Dyberry, Pa.......... 205

Eagle Bridge, N. Y., Hoosic River

near............................ 82

East Canada Creek at East Creek, N. Y. 91 

at Inghams , N. Y.................... 13

East Creek, N. Y., East Canada Creek

at.............................. 91

East Homer, N. Y., Albright Creek at.. 327 

East Mahantango Creek near Dalmatia,

Pa.............................. 404

East Meadow Brook at Freeport, N. Y... 36 

East Patchogue, N. Y., Swan River at.. 26 

East Sidney, N. Y., East Sidney Reservoir at......................... 313

Ouleout Creek at.................... 314

East Sidney Reservoir at East Sidney,

N. Y............................ 313

Echo Lake, N. J., contents of........146,147

Elizabeth River at Elizabeth, N. J.... 149

Elk Mills, Md., Big Elk Creek at... .-.304-306

Elk River basin, Md., gaging-station

records in.....................304-307

Elk Run near Mainesburg, Pa........... 339

Elmira, N. Y., Newtown Creek at....... 357

English Center, Pa., Blockhouse Creek

near............................ 395

Erwins, N. Y., Tioga River near....... 352

Esopus Creek, at Coldbrook, N. Y...... 103

at Kingston, N. Y................... 592

Evitts Creek near Centerville, Pa..... 475

Extonville, N. J., Crosswieks Creek

at. ............................. 250

Eyers Grove, Pa., Little Fishing Creek

at.............................. 374

Fairview, Md., Conococheague Creek at. 490 

Far Hills, N. J., North Branch Raritan

River near...................... 157

Farrington Dam, N. J., Lawrence Brook

at.............................. 164

Faulkner Branch at Federalsburg, Md... 292 

Federalsburg, Md., Faulkner Branch at. 292

Page 

Felton, Del., Murderkill River near.... 597

First Fork Sinnemahoning Creek Reservoir, Pa., contents of..........440,441

Fishing Creek (Potomac River basin)

near Lewlstown, Md............... 524

Fishing Creek {Susquehanna River basin)

near Bloomsburg, Pa.............. 373

Fishkill Creek at Beacon, N. Y......... 119

Fishs Eddy, N. Y., East Branch Delaware River at.................... 189

Fivemile Creek near Kanona, N. Y....... 354

Flat Brook near Flatbrookville, N. J..219-220 

Flemington, N. J., Walnut Brook near... 155 

Floods, special reports on............. 12-13

Florida, N. Y., Quaker Creek at........ Ill

Folsom, N. J., Great Egg Harbor River

at...............................14,173

Fort Plain, N. Y., Otsquago Creek at... 92 

Founnile Run at Alexandria, Va......... 539

Franklin, Md., Georges Creek at........ 468

Franklin, W. Va., South Branch Potomae

River at......................... 477

Frankstown Branch. See Juniata River,

Frankstown Branch.

Frederick, Md., Linganore Creek near..525-526 

Monocacy River near.............527,600-601

Fredericksburg, Va., Rappahannock

River near....................... 568

Freeport, N. Y., East Meadow Brook at.. 36 

Front Royal, Va., Happy Creek at....... 504

South Fork Shenandoah River at....... 503

Gapsville, Pa., Brush Creek at......... 412

Gardiner, N. Y., Wallkill River at..... 114

Gardnerville, N. Y., Rutgers Creek at.. 109 

Garrisonville, Va., Beaverdam Run

near............................. 555

Middle Fork Chopawamsic Creek near... 553 

South Branch Chopawamsic Creek near.. 554 

Genegantslet Creek at Smithville Flats,

N. Y............:................ 325

Georges Creek at Franklin, Md.......... 468

Glen Cove, N. Y., Cedar Swamp Creek

at............................... 20

Glens Falls feeder, at Dunham Basin,

N. Y............................. 70

at Glens Falls, N. Y................. 69

Glowegee Creek at West Milton, N. Y.... 74

Glyndon, Md., Slade Run near........... 444

Godeffroy, N. Y., Neversink River at... 216 

Goose Creek near Leesburg, Va.......... 529

Grahamsville, N. Y., Chestnut Creek

at............................... 105

Granton, N. Y., Dryden Creek near...... 193

Graterford, Pa., Perkiomen Creek at.... 260

Great Cacapon, W. Va., Cacapon River

near............................. 486

Great Egg Harbor River at Folsom,

N. J....................... ......14,173

Great Falls, Va., Difficult Run near... 531 

Great Mills, Md., St. Marys River at... 557 

Great Trough Creek near Marklesburg,

Pa............................... 414

Green Brook at Plainfield, N. J........ 163

Green Island, N. Y., Hudson River at... 98-99 

Green River at Williamstown, Mass...... 79

Greene, N. Y., Chenango River at....... 324

Greensboro, Md., Choptank River near... 296 

Greenwood Lake at Awosting, N. J......146,147

Griffin, N. Y., East Branch Sacandaga

River at......................... 61

Grottoes, Va., Middle River near....... 500

Guilford, Md., Little Patuxent River at 459 

Gunpowder Falls at Lock Raven, Md...... 13

near Carney, Md...................... 446

Gunpowder River basin, Md., gagingstation records in..............443-447

Hackensaek River, at New Milford, N. J. 124 

at Rivervale, N. J................... 122

diversions from...................... 126

Hackensaek River basin, N. J., diversions from....................... 126

gaging-station records in...........122-124

reservoirs in........................ 125

Hackettstown, N. J., Musconetcong River

near............................. 241

Hadley, N. Y., Hudson River

at............................... 60

Sacandaga River near................. 64-68
INDEX

Hale Eddy, N. Y., West Branch Delaware River at..................

Hancock, Md., Little Tonoloway Creek 

near...........................

Potomac River at...................

Hanover, Va., Pamunkey River near.....

200

487

576

Happy Creek at Front Royal, Va........ 504

Harmony, Md., Little Catoctin Creek

at. 513

Harper Tavern, Pa., Swatara Creek at. 428

Harrisburg, Pa., Susquehanna River

at.............................. 426

Harrison, N. Y., Beaver Swamp Brook

near............................ 16

Harrisville, N. J., Oswego River at... 171 

Harvard, N. Y., East Branch Delaware

River at........................ 183

Hatchery, Pa., Wild Creek at.......... 231

Hawley, Pa., Lackawaxen River at...... 208

Middle Creek near................... 207

Hazel River at Rixeyville, Va......... 562

Headsville, W. Va., Patterson Creek

near............................ 476

Hebron, Md., Rewastico Creek near..... 293

Henryton, Md., South Branch Patapsco

River at........................ 451

Henson Creek at Oxon Hill, Md......... 541

High Bridge, N. J., South Branch Raritan River near.................. 153

Hinckley, N. Y., West Canada Creek at. 86 

Hogestown, Pa., Conodoguinet Creek

near............................ 425

Holland Patent, N. Y., Ninemile feeder

near............................ 87

Hollofield, Md., Patapsco River at.... 453

Holly ditch near Laurel, Del.......... 290

Honesdale, Pa., Lackawaxen River near. 206 

Hoosic River, at Adams, Mass.......... 76

at Buskirk, N. Y.................... 588

at Schagticoke, N. Y................ 13

near Eagle Bridge, N. Y............. 82

near Williamstown, Mass ............. 78

North Branch, at North Adams, Mass.. 77 

Hope, N. Y., Sacandaga River near..... 14,62

Home11, N. Y., Canacadea Creek near.. 348 

Canisteo River at................... 349

Hudson Creek near Boswells Tavern,

Va.............................. 574

Hudson River, at Gooley, near Indian

Lake, N. Y...................... 42-47

at Green Island, N. Y............... 98-99

at Hadley, N. Y..................... 60

at Mechanicville, N. Y.............. 83

at North Creek, N. Y................ 50-54

at Spier Falls, N. Y................ 13

at Thurman, N. Y...................580-582

near Newcomb, N. Y.. ................. 40

Hudson River basin, N. Y.-Mass.-Vt.,

gaging-station records in.......40-121

Hunting Creek at Jimtown, Md.......... 523

Huntingdon, Pa., Juniata River at..... 409

Raystown Branch Juniata River near.. 415 

Standing Stone Creek near........... 410

Huntsville, N. J., Pequest River at... 

Hutchinson River at Pelham, N. Y......

Hyattsville, Md., Northeast Branch

Anacostia River near............

Northwest Branch Anacostia River

near............................

Hydrologic conditions.................

graph of..........................

Hyndman, Pa., Wills Creek below.......

Independent Hill, Va., North Branch 

Chopawamsic Creek near........

South Fork Quantico Creek near....

Index, N. Y., Oaks Creek at.........

Indian Lake, N. Y., Cedar River near..

223

18

602

538

13

14

471

552

551

309

41

Hudson River near................... 42-47

Indian Lake Reservoir near..........

Indian River near...................

Indian Lake Reservoir near Indian

Lake, N. Y......................

Indian River near Indian Lake, N. Y.., 

Islip, N. Y., Champlin Creek at.......

Itaska, N. Y., Tioughnioga River at...

48

49

48

49

29

332

Jacobs Creek near Sassafras, Md....... 303

Jessup, Md., Dorsey Run near.......... 461

Jimtown, Md., Hunting Creek at........ 523

Jones Springs, W. Va., Back Creek

near............................

Jordan Creek at Allentown, Pa.........

Juniata River, at Huntingdon, Pa......

at Mapleton Depot, Pa...............

at Newport, Pa......................

Frankstown Branch, at Williamsburg, 

Pa..............................

Raystown Branch, at Saxton, Pa......

near Huntingdon, Pa...............

Kanona, N. Y., Fivemile Creek near.....

Karr Valley Creek at Almond, N. Y......

Karthaus, Pa., West Branch Susquehanna

River at.........................

Kast Bridge, N. Y., West Canada Creek

at...............................

Kayaderosseras Creek near West Milton,

N. Y.............................

Kennedyville, Md., Morgan Creek near... 

Kettle Creek, at Cross Fork, Pa........

near Westport, Pa....................

Keyser, W. Va., New Creek near.........

Kinderhook Creek at Rossman, N. Y......

Kingston, N. J., Delaware & Raritan

Canal at.........................

Kingston, N. Y., Esopus Creek at.......

Kishacoquillas Creek at Reedsville,

Pa...............................

Kitzmiller, Md., North Branch Potomac

River at.........................

Page

489

236

409

416

421

405

413

415

354

346

382

75

301

386

387

469

101

247

592

418

463

Lackawack, N. Y., Rondout Creek near... 106

Lackawanna River, at Archbald, Pa...... 365

at Moosic, Pa........................ 598

at Old Forge, Pa..................... 366

Lackawaxen River, at Hawley, Pa........ 208

at West Hawley, Pa................... 593

near Honesdale, Pa................... 206

West Branch, at Prompton, Pa......... 204

Lake Hopatcong, N. J., contents

of..........................277,278,279

Musconetcong River at outlet of...... 240

Lake Wallenpaupack, Pa., contents of..276,279

Lakes and Reservoirs:

Almond Reservoir near Almond, N. Y... 347 

Arkport Reservoir near Arkport, N. Y. 344 

Boonton Reservoir, N. J.............146,147

Canistear Reservoir, N. J. ..........146,147

Cliff Lake Reservoir, N. Y..........276,279

Clinton Reservoir, N. J.............146,147

DeForest Lake, N. Y.................. 125

DeHart Reservoir, Pa................440,441

East Sidney Reservoir at East Sidney,

N. Y............................. 313

Echo Lake, N. J.....................146,147

First Fork Sinnemahoning Creek

Reservoir, Pa...................440,441

Greenwood Lake, N. J................146,147

Hopatcong, Lake, N. J. ..........277,278,279

Indian Lake Reservoir near Indian

Lake, N. Y....................... 48

Neversink Reservoir, N. Y...........277,279

Oak Ridge Reservoir, N. J...........146,147

Oradel Reservoir, N. J............... 125

Pepacton Reservoir, N. Y............276,279

Sacandaga Reservoir at Conklingville, N. Y...................... 63

Splitrock Reservoir, N. J...........146,147

Still Creek Reservoir, Pa...........277,279

Swinging Bridge Reservoir, N. Y.....276,279

Toronto Reservoir, N. Y.............276,279

Wallenpaupack, Lake, Pa.............276,279

Wanaque Reservoir, N. J.............. 147

Whitney Point Reservoir at Whitney

Point, N. Y...................... 331

Wild Creek Reservoir, Pa............277,279

Woodcliff Lake N. J................. 125

Lamington (Black) River near Pottersville, N. J......................

Lancaster, Pa., Conestoga Creek at....,

Langhorne, Pa., Neshaminy Creek near..,

Lanoka Harbor, N. J., Cedar Creek at...

Lantz, Md., Owens Creek at.............

Largo, Md., Western Branch near........

Laurel, Del., Holly ditch near.........

Trap Pond Outlet near................

Laurel, Md., Patuxent River near.......

Laurel Brook, Md., Little Gunpowder

Falls at. ........................

158

435

251

169

522

462

290

289

458

447
INDEX 623

Page 

Laurel Mills, Va., Thornton River

near. ......................... .560-561

Lawrence Brook at Farrington Dam,

N. J............................ 164

Lawrencevllle , Pa., Cowanesque River

near. ........................... 342

Leesburg, Va., Goose Creek near....... 529

Lehlgh River, at Bethlehem, Pa. ..... .238-239

at Lehlghton, Pa. ................... 594

at Stoddartsvllle, Pa. .............. 228

at Tannery , Pa ...................... 229

at Walnutport , Pa ................... 234

Lehlghton, Pa., Lehlgh River at ....... 594

Leipsic River near Cheswold, Del . 

Leslie , Md , , Northeast Creek at .......

Lewlsburg, Pa., West Branch SuSquehanna River at ..................

Lewlstown, Md . , Pishing Creek near....

Liberty Grove, Md . , Basin Run at.....

Llndenhurst, N. Y., Santapogue River

at .............................

Llndley, N. Y., Tloga River at .

281

308

400

524

438

33 

343

Linganbre Creek near Frederick, Md...525-526 

Little Beaver Kill near Livingston

Manor, N. Y..................... 187

Little Catoctin Creek at Harmony, Md.. 513 

Little Delaware River near Delhi,

N. Y............................ 191

Little Elk Creek at Childs, Md........ 307

Little Falls, N. J., Passaic River

at............... ............... 142

Little Palls, N. Y., Mohawk River

near............................ 89-90

Little Palls at Blue Mount, Md........ 443

Little Palls Branch near Bethesda,

Md. ............................. 533

Little Fishing Creek at Eyers Grove,

Pa.............................. 374

Little Gunpowder Falls at Laurel

Brook, Md....................... 447

Little Hoosic River at Petersburg,

N. Y............................

Little Juniata River, at Spruce Creek,

Pa. ............................. 408

at Tipton, Pa....................... 406

Little Lehigh Creek near Allentown,

Pa.............................. 235

Little Patuxent River, at Guilford,

Md.............................. 459

at Savage, Md....................... 460

Little Pipe Creek at Avondale, Md..... 521

Little Schuylkill River at Tamaqua,

Pa.............................254-256

Little Tonoloway Creek near Hancock,

Md............... ............... 487

Little Wappinger Creek at Salt Point,

N. Y............................ 117

Livingston Manor, N. Y., Little

Beaver Kill near................ 187

Willowemoc Creek near............... 186

Locust Dale, Va., Robertson River

near............................ 566

Lodi, N. J., Saddle River at.......... 143

Long Branch near Annandale, Va........ 543

Long Island, N. Y., streams on,

gaging-station records for...... 20-39

Long Pond, Pa., Dilldown Creek near... 230 

Loper Run near Bridgeton, N. J........ 176

Lovelton, Pa., North Fork Mehoopany

Creek near...................... 363

Lowes Corners, N. Y., Rondout Creek

near............................ 104

Loyalsock Creek at Loyalsock, Pa...... 398

Loysville, Pa., Bixler Run near....... 42

Luke, Md., North Branch Potomac River

at.............................. 467

Luray, Va., Yagers Spring near........ 502

Luzerne, Pa., Toby Creek at........... 37C

Lycoming Creek near Trout Run, Pa..... 396

Lynwood, Va., South Fork Shenandoah

River near...................... 502

McMichaels Creek at Stroudsburg, Pa... 594 

Macopin intake dam, N. J., Pequannock

River at........................ 131

Mahwah, N. J., Ramapo River near...... 139

Mainesburg, Pa., Corey Creek near..... 338

Elk Run near........................ 339

Malverne, N. Y., Pines Brook at....... 37-38

Mamaroneck River at Mamaroneck, N. Y.. 17

Page 

Manada Creek at Manada Gap, Pa......... 429

yianantlco Creek near Mlllvllle, N. J... 175 

yianasquan River at Squankum, N. J...... 167

yianassas, Va., Bull Run near........... 548

Manchester, Pa., West Conewago Creek

near............................. 430

Manokln Branch near Princess Anne,

Md............................... 285

Mantua Creek at Pitman , N. J ........... 262

Manvllle, N. J., Rarltan River at...... 160

Map of the United States............... 11

Mapleton Depot, Pa., Junlata River at.. 416 

Margaretville, N. Y., East Branch

Delaware River at................ 177

Marietta, Pa., Susquehanna River at.... 434

Marklesburg, Pa., Great Trough Creek

near............................. 414

Marlboro Spring at Marlboro, Va........ 510

Marrlottsvllle, Md., North Branch

Patapsco River near.............. 450

Marsh Creek at Blanchard, Pa........... 392

Marshy Hope Creek near Adamsvllle, Del. 291 

Martlnsburg, W. Va., Opequon Creek

near............................. 493

Tuscarora Creek above ................ 494

Masonvllle, W. Va., Big Spring at...... 480

Massapequa Creek at Massapequa, N. Y... 34

Mattaponl River, near Beulahvllle, Va.. 579

near Bowling Green, Va...............5, 578

Mattawoman Creek near Pomonkey, Md..... 550

Matthews, Md., Beaverdam Branch at..... 298

Maurice River at Norma, N. J........... 174

Maurice River basin, N. J. ............174-175

Mechanlcvllle, N. Y., Hudson River at.. 83 

Mehoopany Creek, North Fork, near

Lovelton, Pa..................... 363

Middle Creek near Hawley, Pa........... 207

Middle River near Grottoes, Va......... 500

Middletown, Md., Catoctln Creek near..514-515 

Mllesburg, Pa., North Bald Eagle Creek

at.... ........................... 390

Mill Brook at Arena, N. Y.............. 179

Mill Neck Creek at Mill Neck, N. Y..... 21

Mlllerstown, Pa., Cocolamus Creek near. 420 

Mllllngton, Md., Unicorn Branch near... 300 

Mllllngton, N. J., Passalc River

near............................. 126

Millstone River at Blackwells Mills,

N. J............................. 161

Mlllvllle, N. J., Manantlco Creek

near............................. 175

Mlllvllle, W. Va., Shenandoah River

at.......... ....................511-512

Mlnlslnk Hills, Pa., Brodhead Creek

at. .............................. 221

Mohawk River, at Cohoes, N. Y.......... 96-97

"below Delta Dam, near Rome, N. Y..... 85

near Little Falls, N. Y.............. 89-90

Mongaup River near Mongaup, N. Y....... 210

Monks, N. J., Wanaque River at......... 133

Monocacy Creek at Bethlehem, Pa........ 237

Monocacy River, at Bridgeport, Md...... 519

at Jug Bridge, near Frederick, Md.... 527

near Frederick, Md..................600-601

Monroeton, Pa., Towanda Creek near....361-362

Montague, N. J., Delaware River at..... 217

Montross, Va., Cat Point Creek near.... 569

Moorefleld, W. Va., South Fork of South

Branch Potomac River near........ 482

Mooslc, Pa., Lackawanna River at....... 598

Morgan Creek near Kennedyville, Md..... 301

Morris, N. Y., Butternut Creek at...... 318

Morristown, N. J., Whlppany River at... 130 

Moshannon Creek at Osceola Mills, Pa... 381 

Mount Jackson, Va., North Fork Shenandoah River at.................... 506

Mountain Run near Culpeper, Va......... 564

Moylan, Pa., Rldley Creek at........... 595

Mud Creek near Savona, N. Y............ 355

Mulllca River basin, N. J., gaglngstatlon records In..............170-171

Muncy Creek near Sonestown, Pa......... 399

Murderkill River near Felton, Del...... 597

Musconetcong River, at outlet of Lake

Hopatcong, N. J. ................. 240

near Bloomsbury, N. J................ 242

near Hackettstown, N. J.............. 241

Nantlcoke River near Bridgeville,

Del.............................. 288
624 INDEX

Nanticoke River basin, Del.-Md.,

gaging-statlon records in......288-293

Nassawango Creek near Snow Hill, Md.. . 284 

Neshaminy Creek, at Rushland, Pa...... 595

near Langhorne, Pa.................. 251

Neshanic River at Reaville, N. J...... 156

Neversink Reservoir, N. Y., contents

of.............................277,279

diversion from...................... 280

Neversink River, at Godeffroy, N. Y... 216 

at Neversink, N. Y.................. 213

at Oakland Valley, N. Y............. 215

at Woodbourne, N. Y................. 214

near Claryville, N. Y............... 212

New Berlin, N. Y., Unadilla River

near............................ 316

New Creek near Keyser, W. Va.......... 469

New Market, Va., Plains Mill Spring

near............................ 506

New Milford, N. J., Hackensack River

at.............................. 124

Newark, Del., White Clay Creek above.. 265 

White Clay Creek near............... 266

Newcomb, N. Y., Hudson River near..... 40

Newport, Pa., Juniata River at........ 421

Newtown Creek at Elmira, N. Y......... 357

Ninemile feeder near Holland Patent,

N. Y............................ 87

Nissequogue River near Smithtown,

N. Y............................ 23

Norraa, N. J., Maurice River at........ 174

North Adams, Mass., North Branch

Hoosic River at................. 77

North Anna River, Va., near Doswell,

Va.............................. 573

North Bald Eagle Creek, at Beech

Creek Station, Pa............... 393

at Blanchard, Pa.................... 391

below Spring Creek, at Milesburg,

Pa.............................. 390

North Bennington, Vt., Walloomsac

River near...................... 81

North Creek, N. Y., Hudson River at... 50-54 

North River (Potomac River basin),

near Burketown, Va.............. 498

near Stokesville, Va................ 497

North River (South River basin) near

Annapolis, Md..................454-455

Northeast Creek at Leslie, Md......... 308

Northville, N. Y., Sacandaga River

at. ............................585-587

Oak Hill, N. Y., Catskill Creek at.... 102 

Oak Ridge Reservoir, N. J., contents

of.............................146,147

Oakdale, N. Y., Connetquot River near. 28 

Oakland Valley, N. Y., Neversink

River at........................ 215

Oaks Creek at Index, N. Y............. 309

Occoquan Creek near Occoquan, Va...... 549

Octoraro Creek near Rising Sun, Md...436-437 

Old Bridge, N. J., South River at..... 165

Old Forge, Pa., Lackawanna River at... 366 

Oldmans Creek near Woodstown, N. J.... 596

Oldtown, Md., Sawpit Run near......... 484

Oneonta, N. Y., Otego Creek near...... 312

Opequon Creek, near Berryville, Va.... 491

near Martinsburg, W. Va............. 493

Oquaga Creek at Deposit, N. Y......... 199

Oradel Reservoir, N. J., contents of.. 125 

Order, downstream, of listing gaging

stations........................ 4

Osceola Mills, Pa., Moshannon Creek

at.............................. 381

Oswego River at Harrisville, N. J..... 171

Otego Creek near Oneonta, N. Y........ 312

Otselic River, at Cincinnatus, N. Y... 329 

'near Upper Lisle, N. Y..............5, 330

Otsquago Creek at Fort Plain, N. Y.... 92

Ouleout Creek at East Sidney, N. Y.... 314

Owego Creek near Owego, N. Y.......... 335

Owens Creek at Lantz, Md.............. 522

Oxon Hill, Md., Henson Creek at....... 541

Palmerton, Pa., Aquashicola Creek at.. 233

Pamunkey River near Hanover, Va....... 576

Park Mills, Md., Bennett Creek at 528

Parryville, Pa., Pohopoco Creek near.. 232

Pascack Brook at Westwood, N. J....... 123

Passage Creek at Buckton, Va.......... 510

Passaic River, at Little Falls, N. J.... 142

near Chatham, N. J................... 127

near Millington, N. J. ............... 126.

Passaic River basin, N. J., diversions

in............................... 148

_-station records in...........126-145

reservoirs in.......................146-147

Patapsco River, at Hollofield, Md...... 453

North Branch, at Cedarhurst, Md...... 449

near Marriottsville, Md............ 450

South Branch, at Henryton, Md........ 451

Patapsco River basin, Md., gagingstation records in..............448-453

Patchogue Creek at Patchogue, N. Y..... 27

Patterson Creek near Headsville, W. Va. 476 

Patuxent River, near Laurel, Md........ 458

near Unity, Md....................... 456

Patuxent River basin, Md., gagingstation records in..............456-462

Paulins Kill at Blairstown, N. J....... 222

Paw Paw, W. Va., Potomac River at......14,485

Peconic River at Riverhead, N. Y....... 24

Pelham, N. Y., Hutchinson River at..... 18

Pellets Island Mountain, N. Y., Wallkill River at.................... 112

Pemberton, N. J., North Branch Rancocas Creek at..................... 252

Penataquit Creek at Bay Shore, N. Y.... 30

Perm Creek at Penns Creek, Pa.......... 403

Pepacton, N. Y., Terry Clove Kill

near............................. 181

Pepacton Reservoir, N. Y., contents

of..............................276,279

diversion from....................... 280

Pequannock River at Macopin intake

dam, N. J........................ 131

Pequest River, at Huntsville, N. J..... 223

at Pequest, N. J..................... 224

Perkiomen Creek at Graterford, Pa...... 260

Petersburg, N. Y., Little Hoosic River

at............................... 80

Petersburg, W. Va., South Branch

Potomac River near............... 479

Philadelphia, Pa., Schuylkill River

at............................... 261

Phillipsburg, N. Y., Wallkill River

near............................. 113

Pine Creek at Cedar Run, Pa............ 394

Pine Island, N. Y., Pochuck Creek near. 110 

Pines Brook at Malverne, N. Y.......... 37-38

Piney Run near Sykesville, Md.......... 452

Pinto, Md., North Branch Potomac River

at............................... 470

Pipersville, Pa., Tohickon Creek near.245-246 

Piscataway Creek near Tappahannock,

Va............................... 570

Pitman, N. J., Mantua Creek at......... 262

Plainfield, N. J .,' Green Brook at...... 163

Plains Mill Spring near New Market,

Va............................... 506

Platte Kill at Dunraven, N. Y.......... 178

Pochuck Creek near Pine Island, N. Y... 110 

Pocomoke River near Willards, Md....... 283

Pocomoke River basin, Md., gagingstation records in..............283-284

Poesten Kill near Troy, N. Y........... 100

Pohopoco Creek near Parryville, Pa..... 232

Point of Rocks, Md., Potomac River at.516-518 

Pomonkey, Md., Mattawoman Creek near... 550 

Pompton Lakes, N. J., Ramapo River.at.. 140 

Pompton River at Pompton Plains, N. J.. 141 

Port Jervis, N. Y., Delaware River

at....... ........................ 211

Port Royal, Pa., Tuscarora Creek near.. 419 

Potomac River, at Hancock, Md.......... 488

at Paw Paw, W. Va.. .\. ................14,485

at Point of Rocks, Md...............516-518

near Washington, D. C................ 532

North Branch, at Kitzmiller, Md...... 463

at Luke, Md........................ 467

at Pinto, Md....................... 470

near Cumberland, Md................ 474

South Branch, at Franklin, W. Va..... 477

near Petersburg, W. Va............. 479

near Springfield, W. Va............ 483

North Fork of, at Cabins,

W. Va............................ 478

South Fork of, at Brandywine,

W. V............................ 481

near Moorefield, W. Va........... 482
INDEX 625

Potomac River basin, D. C.-Md.-Fa.-

Va.-W. Va., gaglng-statlon

records In.....................463-55?!

Fottersville. N. J., Lamlngton

(Black) River near.............. 158!

Pottstown, Pa., Schuylklll River at... 2591 

Pottsvllle, Pa., Schuylklll River

at.............................. 253

Prattsvllle, N. Y., Schoharie Creek

at.............................. 93-94

Princess Anne, Md., Manokln Branch

near............................ 285

Prompton, Pa., West Branch Lackawaxen

River at........................ 204

Publications on streamflow, by

Geological Survey............... 9-12

by State agencies ................... 12

Quaker Creek at Florida, N. Y....

QuantIco Creek, South -Pork, near

Independent Hill, Va.......

Ill 

551

Rahway, N. J., Rahway River at........ 151

Robinsons Branch Rahway River at.... 152

Rahway River, at Rahway, N. J......... 151

near Springfield, N. J.............. 150

Robinsons Branch, at Rahway, N. J... 152 

Rahway River basin, H. J., gaglngstatlon records In.............150-152

Ramapo River, at Pompton Lakes, N. J.. 140 

near Mahwah, N. J................... 139

Rancocas Creek, North Branch, at

Pemberton, N. J................. 252

Rapldan River, near Culpeper, Va...... 567

near Ruckersvllle, Va............... 565

Rappahannock River, at Remington, Va.. 563 

near Prederlcksburg, Va............. 568

near Warrenton, Va.................. 558

Rappahannock River basin, Va., gaglngstatlon records In.............558-570

Rarltan River, at Bound Brook, N. J... 162 

at Manvllle, N. J................... 160

North Branch, near Par Hills, H. J.. 157 

near Rarltan, N. J................ 159

South Branch, at Stanton, N. J...... 154

near High Bridge, N. J............ 153

Rarltan River basin, N. J., gaglngstatlon records In.............153-165

Raystown Branch. See Junlata River,

Raystown Branch.

Reading, Pa., Tulpehocken Creek near.. 258 

Reavllle, N. J., Neshanlc River at.... 156

Red Bank, N. J., Swimming River near.. 166 

Red Clay Creek at Wooddale, Del......267-268

Reedsvllle, Pa., Klshacoqulllas Creek

at.............................. 418

Remington, Va., Rappahannock River

at..... ......................... 563

Renovo, Pa., West Branch Susquehanna

River at........................ 388

Reservoirs. See Lakes and reservoirs. 

Rewastlco Creek near Hebron, Md....... 293

Rldley Creek at Moylan, Pa............ 595

Rlegelsvllle, N. J., Delaware River

at.... .........................243-244

Rlngwood Creek near Wanaque, N. J..... 134

Rising Sun, Md., Octoraro Creek near.436-437 

Rlverbank, N. Y., Schroon River at.... 55-59

Rlverdale, Md., Northeast Branch Anacostla River at................. 535

Rlverhead, N. Y., Peconlc River at.... 24

Rlvervale, N. J., Hackensack River

at.............................. 122

Rixeyvllle, Va., Hazel River at....... 562

Robertson River near Locust Dale,

Va.............................. 566

Robinsons Branch. See Rahway River,

Robinsons Branch.

Rock Creek at Sherrll Drive, Washington, D. C.. ..................... 534

Rock Royal, N. Y., Trout Creek near..194-195 

Rockaway River, above reservoir, at

Boonton, N. J ................... 128

below reservoir, at Boonton, N. J... 129 

Rockdale, N. Y., Unadllla River at.... 319

Rocks, Md., Deer Creek at............. 439

Rome, N. Y., Mohawk River near........ 85

Rondout Creek, at Rosendale, N. Y..... 107

near Lackawack, N. Y................ 106

near Lowes Corners, N. Y............ 104

Rosendale, N. Y., Rondout Creek at..... 107

Rossman, N. Y., Klnderhook Creek at.... 101

Roxbury Mills, Md., Cattail Creek at... 457

Ruckersvllle, Va., Rapldan River near.. 565

Runoff In Inches, definition of........ 3

Rush River at Washington, Va........... 559

Rushland, Pa., Neshamlny Creek at...... 595

Rutgers Creek at Gardnervllle, N. Y.... 109

Ruthsburg, Md., Tuckahoe Creek near.... 297

Rye, N. Y., Blind Brook at............. 15

Sacandaga Reservoir at Conkllngvllle,

N. Y............................. 63

Sacandaga River, at Northvllle, N. Y...585-587 

at Stewarts Bridge near Hadley,

N. Y............................. 64-68

East Branch, at Griffin, N. Y........ 61

near Hope, N. Y...................... 14,62

West Branch, at Blackbrldge, near

Wells, N. Y.....................583-584

Saddle River at Lodl, N. J............. 143

Sage Brook near South New Berlin, N. Y. 317 

St. Marys River at Great Mills, Md..... 557

Salem, Md., Chlcamacomlco River near... 294 

Salem River at Woodstown, N. J........271-272

Salisbury, Md., Beaverdam Creek near..286-287 

Sallle Harris Creek near Carmlchael,

Md............................... 299

Salt Point, N. Y., Little Wapplnger

Creek at......................... 117

Sampawams Creek at Babylon, N. Y....... 31

Santapogue River at Llndenhurst, N. Y.. 33 

Sassafras, Md., Jacobs Creek near...... 303

Savage, Md., Little Patuxent River

at............................... 460

Savage River, below Savage River Dam,

near Bloomlngton, Md............. 466

near Barton, Md...................... 464

Savage River Reservoir, contents of.... 466

Savona, N. Y., Mud Creek near.......... 355

Saw Mill River at Yonkers, N. Y........ 121

Sawplt Run near Oldtown, Md............ 484

Saxton, Pa., Raystown Branch Junlata

River at......................... 413

Schoharle Creek, at Burtonsvllle, N. Y. 95 

at Prattsvllle, N. Y................. 93-94

Schroon River at Rlverbank, N. Y....... 55-59

Schuylklll River, at Berne , Pa.......... 257

at Philadelphia, Pa.................. 261

at Pottstown, Pa..................... 259

at Pottsvllle, Pa.................... 253

Second River at Belleville, N. J....... 145

Seneca Creek at Dawsonvllle, Md........ 530

Shackham Brook near Truxton, N. Y...... 326

Shamokln Creek at Weigh Scale, Pa...... 402

Sharpsburg, Md., Antletam Creek near..495-496 

Shavertown, N. Y., Tremper Kill near... 180 

Shellpot Creek at Wllmlngton, Del...... 270

Shenandoah River, at Mlllvllle,

W. Va...........................511-512

North Fork, at Cootes Store, Va...... 505

at Mount Jackson, Va............... 506

near Strasburg, Va................. 508

South Fork, at Front Royal, Va....... 503

near Lynnwood, Va.................. 502

Sherburne, N. Y., Chenango River at.... 321

Sherman Creek at Shermandale, Pa....... 423

Shoemakers, Pa., Bush Kill at.......... 218

Sinnemahoning Creek, at Sinnemahonlng,

Pa............................... 384

Driftwood Branch, at Sterling Run,

Pa. .............................. 383

First Fork, near Sinnemahonlng, Pa... 385 

Slade Run near Glyndon, Md............. 444

Smlthtown, N. Y., Nlssequogue River

near............................. 23

Smlthvllle Flats, N. Y., Genegantslet

Creek at......................... 325

Snow Hill, Md., Nassawango Creek near.. 284 

Solomon Creek at Wllkes-Barre, Pa...... 371

Sonestown, Pa., Muncy Creek near....... 399

South Addlson, N. Y., Tuscarora Creek

near............................. 351

South Anna River near Ashland, Va...... 575

South Bald Eagle Creek at Tyrone, Pa... 407 

South Cairo, H. Y., Catsklll Creek at.589-591 

South New Berlin, N. Y., Sage Brook

near............................. 317

South Plymouth, N. Y., Canasawacta

Creek near......................322-323
INDEX

Page 

South River (tributary to North River)

near Waynesboro, Va............. 501

South River (tributary to Raritan

River) at Old Bridge, N. J...... 165

Southeast Creek at Church Hill, Md.... 302

Spencer, N. Y., Dean Creek at......... 336

Splltrock Reservoir, N. J., contents

of.............................146,147

Spring Creek near Axemann, Pa......... 389

Spring Grove, Pa., Codorus Creek at... 431 

Springfield, N. J., Rahway River

near............................ 150

Springfield, W. Va., South Branch

Potomac River near.............. 483

Sprite Creek below Canada Lake,

N. Y............................ 13

Spruce Creek, Pa., Little Juniata

River at........................ 408

Squankum, N. J., Manasquan River at... 167 

Stage-discharge relation, definition

of.............................. 3

Standing Stone Creek near Huntingdon,

Pa.............................. 410

Stanton, N. J., South Branch Raritan

River at........................ 154

Staunton, Va., Bell Creek near........ 499

Sterling Run, Pa., Driftwood Branch

Sinnemahoning Creek at.......... 383

Stilesville, N. Y., West Branch Dela-

. ware River at................... 197

Still Creek Reservoir, Pa., contents

of.............................277,279

Stockley Branch at Stockley, Del...... 282'

Stoddartsville, Pa., Lehigh River

at. ............................. 228

Stokesville, Va., North River near.... 497

Stony Creek at Columbia Furnace, Va... 507 

Strasburg, Va., North Fork Shenandoah

River near...................... 508

Stroudsburg, Pa., McMichaels Creek

at. ............................. 594

Sunbury, Pa., Susquehanna River at.... 401

Susquehanna River, at Colliersville,

N. Y............................ 310

at Conklin, N. Y.................... 320

at Danville, Pa .................... 375-377

at Harrisburg, Pa ................... 426

at Marietta, Pa ..................... 434

at Sunbury, Pa ...................... 401

at Towanda, Pa...................... 360

at Unadilla, N. Y................... 315

at Vestal, N. Y..................... 334

at Wilkes-Barre, Pa................367-369

at Wysox, Pa ........................ 597

near Waverly, N. Y.................. 337

West Branch, at Bower, Pa........... 378

at Karthaus, Pa ................... 382

at Lewisburg, Pa .................. 400

at Renovo, Pa ..................... 388

at Williamsport, Pa ............... 397

near Curwensville, Pa ............. 379

Susquehanna River basin, N. Y.-Md.-

Pa., gaging-station records in.. 309 

Swan River at East Patchogne, N. Y.... 26

Swanton, Md., Crabtree Creek near..... 465

Swatara Creek at Harper Tavern, Pa.... 428

Swimming River near Red Bank, N. J.... 166

Swinging Bridge Reservoir, N. Y.,

contents of....................276,279

Sykesville, Md., Piney Run near....... 452

Tamaqua, Pa., Little Schuylkill River

at.............................254-256

Tannery, Pa., Lehigh River at......... 229

Tappahannock, Va., Piscataway Creek

near............................ 570

Tenmile River at Tusten, N. Y......... 202

Terms and abbreviations, definition

of.............................. 3-4

Terry Clove Kill near Pepacton,

N. Y............................ 181

Thornton River near Laurel Mills,

Va.............................560-561

Three Springs, Pa., Aughwick Creek

near............................ 417

Thurman, N. Y., Hudson River at......580-58

Tioga, Pa., Crooked Creek at.......... 341

Tioga River at...................... 340

Tioga River, at .Lindley, N. Y......... 343

at Tioga, Pa........................ 340

near Erwins, N. Y................... 352

Page 

Tioughnioga River, at Cortland, N. Y... 328

at Itaska, N. Y...................... 332

Tipton, Pa., Little Juniata River at... 406 

Toby Creek at Luzerne, Pa.............. 370

Tohickon Creek near Pipersville, Pa...245-246 

Toms River near Toms River, N. J....... 168

Toronto Reservoir, N. Y., contents

of..............................276,279

Totopotomoy Creek near Atlee, Va....... 577

Towanda, Pa., Susquehanna River at..... 360

Towanda Creek near Monroeton, Pa......361-362

Trap Pond Outlet near Laurel, Del...... 289

Tremper Kill near Shavertown, N. Y..... 180

Trenton, N. J., Assunpink Creek at..... 249

Delaware River at.................... 248

Trout Creek, at Cannonsville, N. Y..... 196

near Rock Royal, N. Y...............194-195

Trout Run, Pa., Lycoming Creek near.... 396

Troy, N. Y., Poesten Kill near......... 100

Truxton, N. Y., Shackham Brook near.... 326

Tuckahoe Creek near Ruthsburg, Md...... 297

Tulpehocken Creek near Reading, Pa..... 258

Tunkhannock Creek at Dixon, Pa......... 364

Turnwood, N. Y., Beaver Kill near...... 184

Tuscarora Creek (tributary to Canisteo

River) near South Addison, N. Y.. 351 

Tuscarora Creek (tributary to Juniata

River) near Port Royal, Pa....... 419

Tuscarora Creek (tributary to Opequon

Creek) above Martinsburg, W. Va.. 494 

Tusten, N. Y., Tenmile River at........ 202

Tyrone, Pa., South Bald Eagle Creek

at....... ........................ 407

Unadilla, N. Y., Susquehanna River at.. 315 

Unadilla River, at Rockdale, N. Y...... 319

near New Berlin, N. Y................ 316

Unicorn Branch near Millington, Md..... 300

Unionville, N. Y., Wallkill River

near............................. 108

Unity, Md., Patuxent River near......... 456

Upper Lisle, N. Y., Otselic River

near.. ...........................5, 330

Valley Stream, N. Y., Watts Creek at... 39 

Vestal, N. Y., Susquehanna River at.... 334

WSP, definition of..................... 3

Wallenpaupack Creek at Wilsonville,

Pa............................... 209

Wallkill River, at Gardiner, N. Y...... 114

at Pellets Island Mountain, N. Y..... 112

near Phillipsburg, N. Y.............. 113

near Unionville, N. Y................ 108

Walloomsac River near North Bennington,

Vt............................... 81

Walnut Brook near Flemington, N. J..... 155

Walnutport, Pa., Lehigh River at....... 234

Walton, N. Y., West Branch Delaware

River at......................... 192

Wanaque, N. J., Blue Mine Brook near... 137 

Cupsaw Brook near.................... 135

Ringwood Creek near.................. 134

Wanaque River at..................... 138

West Brook near...................... 136

Wanaque Reservoir, N. J., contents of.. 147 

Wanaque River, at Awosting, N. J....... 132

at Monks, N. J....................... 133

at Wanaque, N. J..................... 138

Wantagh Stream at Wantagh, N. Y........ 35

Wappinger Creek, East Branch, near

Clinton Corners, N. Y............ 115

near Clinton Corners, N. Y........... 116

near Wappingers Falls, N. Y.......... 118

Wapwallopen Creek near Wapwallopen,

Pa............................... 372

Warrenton, Va., Cedar Run near......... 545

Rappahannock River near.............. 558

Washington, D. C., Beaverdam Branch

Anacostia River near............. 602

Potomac River near................... 532

Rock Creek at........................ 534

Washington, Va., Rush River at......... 559

Watts Creek at Valley Stream, N. Y..... 39

Waverly, N. Y., Susquehanna River near. 337 

Waynesboro, Va., South River near...... 501

Weasel Brook at Clifton, N. J.......... 144

Weigh Scale, Pa., Shamokin Creek at.... 402

Wells, N. Y., West Branch Sacandaga

River near......................583-584

West Brook near Wanaque, N. J.......... 136
INDEX 627

Page 

West Cameron, N. Y., Canisteo River

at.............................. 350

West Canada Creek, at Hinckley, N. Y.. 86 

at Kast Bridge, N. Y................ 88

West Conewago Creek near Manchester,

Pa.............................. 430

West Hawley, Pa., Lackawaxen River

at.............................. 593

West Milton, N. Y., Glowegee Creek at. 74 

Kayaderosseras Creek near........... 75

Western Branch near Largo, Md......... 462

Western Run at Western Run, Md........ 445

Westminster, Md., Cranberry Branch

near............................ 448

Westport, Pa., Kettle Creek near...... 387

Westwood, N. J., Pascack Brook at..... 123

Whippany River at Morristown, N. J.... 130

White Clay Creek, above Newark, Del... 265 

near Newark, Del.................... 266

Whitney Point Reservoir at Whitney

Point, H. Y..................... 331

Wild Creek at Hatchery, Pa............ 231

Wild Creek Reservoir, Pa., contents

of.............................277,279

Wilkes-Barre, Pa., Solomon Creek at... 371 

Susquehanna River at...............367-369

Willards, Md., Pocomoke River near.... 283

Williamsburg, Pa., Frankstown Branch

Juniata River at................ 405

Williarasport, Pa., West Branch Susquehanna River at.................. 397

Page 

Williamstown, Mass., Green River at.... 79

Hoosic River near.................... 78

Willoweraoc Creek near Livingston

Manor, N. Y...................... 186

Wills Creek, below Hyndman, Pa......... 471

near Cumberland, Md.................472-473

Wilraington, Del., Brandywine Creek at.. 269

Shellpot Creek at.................... 270

Wilsonville, Pa., Wallenpaupack Creek

at............................... 209

Winchester, Va., Abraras Creek near..... 492

Cedar Creek near..................... 509

Woodbourne, N. Y., Neversink River at.. 214 

Woodcliff Lake, N. J., contents of..... 125

Wooddale, Del., Red Clay Creek at.....267-268

Woodstown, N. J., Oldmans Creek near... 596

Salem River at......................271-272

Work, division of...................... 2-3

scope of............................. 1

Wysox, Pa., Susquehanna River at....... 597

Yagers Spring near Luray, Va........... 502

Yaphank, N. Y., Carmans River at....... 25

Yellow Breeches Creek near Camp Hill,

Pa............................... 427

Yonkers, N. Y., Saw Mill River

at............................... 121

York, Pa., Codorus Creek near.......... 433

South Branch Codorus Creek near. ..... 432

York River basin, Va., gaging-station

records in...................... 573-579

U. S. GOVERNMENT PRINTING OFFICE : 1959 O - 505690