Surface Water Sup ply 

of the United States 

1951

Part 12. Pacific Slope Basins in Washington 

and Upper Columbia River Basin

Prepared under the direction of C. G. PAULSEN, Chief Hydraulic Engineer 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1216

Prepared in cooperation with the States 

of Idaho, Montana, and Washington and 

with other agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1954
UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

Washington 25, D. C. - Price $1 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation 

with the States of Idaho, Montana, and Washington and with other 

agencies by personnel of the Water Resources Division under the 

direction of:

C. G. Paulsen__ _______________Chief Hydraulic Er «rineer

J. V. B. Wells_________________Chief, Surface Water Pmnch 

B. J. Peterson_______________Chief, Annual Reports faction

District Engineers (Surface Water)

T. R. Newell_____________________________Boise, Idaho 

Frank Stermitz.____________________ _ Helena, Mont. 

F. M. Veatch_________________________Tacoma, Wash.

ni
CONTENTS

Page 

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

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

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

Definition of terms and abbreviations ................................................ 2

Mew downstream order of listing gaging stations ...................................... 3

Explanat ion of data .................................................................. 3

Accuracy of field data and computed results .......................................... 7

Publications ......................................................................... 8

Records of discharge collected by agencies other than the Geological Survey .......... 11

Hydrologic conditions ................................................................ 12

Gaging-station records ............................................................... 14

Pacific slope basins north of Columbia River:

Naselle River basin:

Naselle River near Naselle, Wash. ................................................ 14

Nemah River basin:

north Neman River near South Bend, Wash. ......................................... 15

Willapa River basin:

Willapa River aTTebam , Wash ..................................................... 16

Willapa River near Willapa, Wash. ................................................ 17

North River basin:

North River1 near Raymond , Wash ................................................... 18

Chehalis River basin:

Chehalis River near Doty , Wash ................................................... 19

Mewaukum River near Chehalis , Wash. ............................................ 20

Skookumchuck River near Centralia, Wash. ....................................... 21

Chehalis River near Grand Mound, Wash. ........................................... 22

Rock Creek at Cedarville , Wash. ................................................ 23

Cloquallum River at Elma, Wash. ................................................ 24

Chehalis River at South Elma , Wash. .............................................. 25

Satsop River near Satsop , Wash. ................................................ 26

Wynoochee River at Oxbow , near Aberdeen , Wash .................................. 27

Humptulips River basin:

Humptullps River near Humptulips, Wash. .......................................... 28

Quinault River basin:

Quinault River at Quinault Lake , Wash. ........................................... 30

Hoh River basin:

Hoh River near Spruce , Wash ..................................................... 31

Quillayute River basin:

Soleduck River (head of Quillayute River) near Pairholm, Wash. ................... 32

Elwha River basin:

Lake Mills at Glines Canyon , near Port Angeles , Wash ............................. 33

Elwha River at McDonald Bridge , near Port Angeles , Wash. ......................... 34

Dungeness River basin:

Dungeness River near Sequim , Wash ................................................ 35

Little Quilcene River basin:

Little yullcene Hiver near Quilcene , Wash ........................................ 36

Big Quilcene River basin: 

BTg Quilcene River at Quilcene , Wash. ............................................ 37

Dosewalllps River basin:

JJosewallips Hiver near Brlnnon , Wash ............................................. 38

Duckabush River basin:

Duckabush River near Brinnon , Wash. .............................................. 39

Hamma Hamma River basin:

Hamma Hamma River near Eldon , Wash ............................................... 40

Eagle Creek has in :

Eagle Creek near Lilliwaup , Wash. ................................................ 41

Finch Creek basin:

Finch Creek at Hoodsport , Wash. .................................................. 42

Skokomlsh River basin:

Nprth Fork Skokomlsh River below Staircase Rapids , near Hoodsport , Wash. ......... 43

North Pork Skokomish River near Hoodsport , Wash .................................. 44

Deer Meadow Creek near Hoodsport , Wash. ........................................ 45

Dow Creek near Hoodsport , Wash ................................................. 46

Gibbons Creek:

McTaggert Creek near Hoodsport , Wash ......................................... 47

North Pork Skokomish River near Potlatch, Wash. .................................. 48

South Fork Skokomish River near Potlatch, Wash. ................................ 49

South Pork Skokomish River near Union, Wash^. ................................... 51

Skokomish River near Potlatch, Wash. ............................................. 53

Union River bas in :

Union River near Bremerton , Wash ................................................. 54

Union River near Belfair, Wash. .................................................. 55

Mission Creek basin:

Mission Lake near Bremerton , Wash ................................................ 56

Mission Creek near Bremerton, Wash. ................................... f .......... 57

Mission Creek near Belfair, Wash. ................................................ 58

Tahuya River basin: 

Tahuya River:

Gold Creek near Bremerton, Wash. ............................................... 59
VI CONTENTS

Gaglng-station records--Continued.

Pacific slope basins north of Columbia River Continued.

Tahuya River basin Continued. Page 

Tahuya River near Bremerton, Wash................................................ 60

Panther Lake near Bremerton, Wash.............................................. 61

Panther Creek near Bremerton, Wash............................................. 62

Tahuya River near Belfair, Wash.................................................. 63

Dewatto Creek basin:

Dewatto creek near Dewatto, Wash................................................. 64

Dogfish Creek basin:

Dogrish creek near Foulsbo, Wash................................................. 65

Mlnter Creek basin: 

Mlnter Creek:

Huge Creek near Wauna, Wash.................................................... 66

Sherwood Creek basin: 

Sherwood Creek:

Mason Lake near Union, Wash.................................................... 67

Shumocher Creek near Union, Wash............................................ 68

Deer Creek basin:

Deer Creek near Shelton, Wash.................................................... 69

Cranberry Creek basin:

Cranberry Creek near Shelton, Wash............................................... 70

Johns Creek basin:

Johns Creek near Shelton, Wash................................................... 71

Goldsborough Creek basin:

Goldsborough Creek near Shelton, Wash............................................ 72

Goldsborough Creek at Shelton, Wash.............................................. 73

Mill Creek basin:

MITT Creek at Shelton, Wash...................................................... 74

Skookum Creek basin:

Skookum Creek at Kamilche, Wash.................................................. 75

Kennedy Creek basin:

Kennedy Creek near New Kamilche, Wash............................................ 76

Deschutes River basin:

Deschutes Kiver near Rainier, Wash............................................... 77

Deschutes River near Olympia, Wash............................................... 78

Woodland Creek basin:

woodland ureek near Olympia, Wash................................................ 79

McAllister Creek basin:

HcAiiister Springs near Olympia, Wash............................................ 80

Nisqually River basin:

Nisqually River near National, Wash.............................................. 81

Roundtop Creek:

Mineral Creek near Mineral, Wash............................................. 82

Alder Reservoir at Alder, Wash................................................... 83

Nisqually River at La Grande, Wash............................................... 84

Mashel River near La Grande, Wash.............................................. 85

Ohop Creek near Eatonville, Wash............................................... 86

Nisqually River near McKenna, Wash............................................... 87

Nisqually River at McKenna, Wash................................................. 88

Chambers Creek basin: 

Chambers Creek:

Clover Creek near Tilllcum, Wash............................................... 89

Chambers Creek below Leach Creek, near Stellacoom, Wash.......................... 90

Puyallup giver basin: 

Fuyallup River:

Kapowsin Creek near Kapowsin, Wash............................................. 91

Puyallup River near Orting, Wash................................................. 92

Carbon River near Fairfax, Wash................................................ 93

South Prairie Creek at South Prairie, Wash................................... 94

Puyallup River at Alderton, Wash................................................. 95

White River at Greenwater, Wash................................................ 96

Greenwater River at Greenwater, Wash......................................... 97

Mud Mountain Reservoir near Buckley, Wash...................................... 98

White River (head of Stuck River) near Buckley, Wash........................... 99

Lake Tapps near Sumner, Wash................................................. 100

Stuck River near Sumner, Wash.................................................. 101

Puyallup River at Puyallup, Wash................................................. 102

Duwamlsh River basin: 

Duwamish River:

Green River: 

Sunday Creek:

Snow Creek near Lester, Wash............................................... 103

Friday Creek near Lester, Wash............................................... 104

Green River near Lester, Wash.................................................. 105

Smay Creek near Lester, Wash................................................. 106

Charley Creek near Eagle Gorge, Wash......................................... 107

Bear Creek near Eagle Gorge, Wash............................................ 108

Green River near Palmer, Wash.................................................. 109

Big Soos Creek near Auburn, Wash............................................. 110

Green River near Auburn, Wash.................................................. Ill

Lake Washington basin:

IJorth ForK Cedar River near Lester, Wash....................................... 112

South Fork Cedar River near Lester, Wash..................................... 113

Cedar River below Bear Creek, near Cedar Palls, Wash........................... 114

Cedar River near Cedar Falls, Wash............................................. 115

Rex River near Cedar Falls, Wash............................................. 116

Cedar River at Cedar Falls, Wash............................................... 117

Cedar River near Landsberg, Wash............................................... 118

Rock Creek near Maple Valley, Wash........................................... 119

Cedar River at Renton, Wash.................................................... 120
CONTENTS VII

Gaging-station records Continued. 

Pacific slope basins north of Columbia River--Continued.

Lake Washington basin --Continued. Page 

Issaquah Creek (head of Sammamish River) near Issaquah, Wash. .................. 121

Sammamish Lake near Redmond , Wash .............................................. 122

Sammamish River near Redmond , Wash. ............................................ 123

North Creek near Bothell , Wash ............................................... 124

Sammamish River at Bothell , Wash. .............................................. 125

Snohomish River basin:

South forte Skykomish River (head of Snohomish River) near Index, Wash. ........... 126

Skykomish River near Gold Bar , Wash. ............................................. 127

Wallace River at Gold Bar, Wash. ............................................... 128

Sultan River near Startup , Wash. ............................................... 129

Woods Creek near Monroe , Wash .................................................. 130

Snoqualmie River:

Griffin Creek near Tolt , Wash. ............................................... 131

Tolt River near Tolt , Wash. .................................................. 132

Snoqualmie River near Tolt , Wash ............................................... 133

P 11 chuck River near Granite Palls, Wash. ....................................... 134

Little Pilchuck Creek near Lake Stevens , Wash. ............................... 135

Snohomish River at Snohomish , Wash ............................................... 136

Quilceda Creek near Marysville , Wash ........................................... 137

Stillaguamish River basin:

South Fork btillaguamish River near Granite Palls , Wash. ......................... 138

South Pork Stillaguamish River above Jim Creek, near Arlington, Wash. ............ 139

Jim Creek near Arlington, Wash. ................................................ 140

North Pork Stillaguamish River:

Squire Creek near Darrington, Wash. .......................................... 141

North Pork Stillaguamish River near Darrington, Wash. .......................... 142

North Pork Stillaguamish River near Arlington, Wash. ........................... 143

Armstrong Creek near Arlington, Wash. .......................................... 144

Pilchuck Creek:

Cavanaugh Lake (head of Lake Creek) near Oso , Wash ........................... 145

Pilchuck Creek near Bryant , Wash. .............................................. 146

Portage Creek:

Fish Creek near Arlington, Wash. ............................................. 147

Skagit River basin:

Skagit River near Hope, British Columbia. ........................................ 148

Ruby Creek below Panther Creek, near Newhalem, Wash. ........................... 149

Ross Reservoir near Newhalem , Wash ............................................... 150

Thunder Creek near Newhalem , Wash .............................................. 151

Stetattle Creek near Newhalem, Wash. ........................................... 152

Skagit River at Newhalem, Wash. .................................................. 153

Skagit River above Alma Creek , near Marblemount , Wash ............................ 154

Skagit River at Marblemount , Wash ................................................ 155

Cascade River at Marblemount , Wash. ............................................ 156

Sauk River above Whitechuck River, near Darrington, Wash. ...................... 157

Sauk River near Sauk , Wash ..................................................... 158

Baker River at Concrete, Wash. ................................................. 159

Skagit River near Concrete , Wash ................................................. 160

Alder Creek near Hamilton , Wash ................................................ 161

Day Creek near Lyman , Wash ..................................................... 162

Skagit River near Mount Vernon , Wash ............................................. 163

Reservoirs in Skagit River basin, Wash. .......................................... 164

Samish River basin:

Samish River near Burlington, Wash. .............................................. 165

What com Creek basin:

Whatcom Creek below hatchery, near Bellingham, Wash. ............................. 166

Nooksaek River basin:

Mooksack River above Cascade Creek, near Glacier, Wash. .......................... 167

Middle Fork Nooksaek River:

Canyon Creek at Kulshan , Wash ................................................ 168

South Fork Nooksaek River near Wickersham, Wash. ............................... 169

Skookum Creek near Wickersham , Wash .......................................... 1 70

Nooksaek River at Deming , Wash. .................................................. 171

Nooksaek River near Lynden , Wash ................................................. 172

Fishtrap Creek at Lynden, Wash. ................................................ 173

Dakota Creek has in :

Dakota Creek near Blaine, Wash. .................................................. 174

Upper Columbia River basin: 

Uolumbia River:

Kootenai River basin:

Kootenay River at Newgate, British Columbia. ..................................... 175

Tobacco River:

Fortine Creek near Trego , Mont ............................................... 176

Fisher River near Jennings , Mont ............................................... 177

Kootenai River at Libby , Mont .................................................... 178

Lake Creek at Troy , Mont ....................................................... 179

Kootenai River at Leonia , Idaho .................................................. 180

Boulder Creek near Leonia , Idaho ............................................... " 181

Moyle River at Eastport , Idaho ................................................. 182

Moyle River at Eileen , Idaho ................................................../. 183

Kootenai River at Boom Camp , near Bonners Ferry , Idaho ........................... 184

Kootenai River at Bonners Ferry , Idaho ........................................... 185

Kootenai River near Bonners Ferry , Idaho ......................................... 187

Deep Creek at Moravia , Idaho ................................................... 188

Koetenai River at Klockmann Ranch , near Bonners Ferry , Idaho ..................... 189

Kootenai River near Copeland , Idaho .............................................. 190

Long Canyon Creek near Porthill , Idaho ......................................... 192

Smith Creek near Porthill , Idaho ............................................... 193

Boundary Creek near Porthill , Idaho ............................................ 194
VIII CONTENTS

Gaging-station records Continued.

Upper Columbia River basin Continued.

Kootenai River basin Continued. Page

Kootenai River at Porthill, Idaho................................................. 195

Kootenay Lake at Kuskonook, British Columbia. ....................... ^............ 197

Columbia River at Birchbank, British Columbia...................................... 198

Pend Oreille River basin:

Clark Fork (head of Fend Oreille River):

Flint Creek near Southern Cross, Mont.......................................... 200

Trout Creek near Southern Cross, Mont........................................ 201

Flint Creek at Maxville, Mont.................................................. 202

Boulder Creek at Maxville , Mont.............................................. 203

Middle Fork Rock Creek near Philipsburg, Mont.................................. 204

Blackfoot River near Helmville, Mont........................................... 205

Nevada Creek above reservoir, near Finn, Mont................................ 206

Blackfoot River near Ovando, Mont.............................................. 207

Blackfoot River near Bonner, Mont.............................................. 208

Clark Fork above Missoula, Mont.................................................. 209

West Fork Bitterroot River near Conner, Mont................................... 210

East Fork Bitterroot River at Conner, Mont................................... 211

Bitterroot River near Darby, Mont.............................................. 212

Rock Creek near Darby, Mont.................................................. 213

Rock Creek Canal near Darby, Mont.......................................... 214

Skalkaho Creek near Hamilton, Mont........................................... 215

Blodgett Creek near Corvallis , Mont.......................................... 216

Fred Burr Creek near Victor, Mont............................................ 217

Bear Creek near Victor, Mont................................................. 218

Kootenai Creek near Stevensville , Mont....................................... 219

Burnt Fork Creek near Stevensville, Mont..................................... 220

Lolo Creek near Lolo, Mont................................................... 221

Clark Fork below Missoula, Mont.................................................. 222

Clark Fork at St. Regis , Mont.................................................... 223

Flathead River at Flathead, British Columbia................................... 224

Flathead River near Columbia Falls, Mont....................................... 225

Middle Fork Falthead River: 

Bear Creek:

Skyland Creek near Essex, Mont........................................... 226

Bear Creek near Essex, Mont................................................ 227

Middle Fork Flathead River at Essex, Mont.................................... 228

Middle Fork Flathead River near West Glacier, Mont........................... 229

South Fork Flathead River at Spotted Bear ranger station, near Hungry Horse,

Mont................................................................... 230

Spotted Bear River near Hungry Horse, Mont................................. 231

Twin Creek near Hungry Horse, Mont......................................... 232

Lower Twin Creek near Hungry Horse, Mont................................... 233

Sullivan Creek near Hungry Horse, Mont..................................... 234

Graves Creek near Hungry Horse, Mont....................................... 235

South Fork Flathead River near Columbia Falls, Mont.......................... 236

Flathead River at Columbia Falls, Mont......................................... 237

Swan River near Bigfork, Mont................................................ 238

Flathead Lake at Somers , Mont.................................................. 239

Flathead River near Poison, Mont............................................... 240

Clark Fork near Plains, Mont..................................................... 241

Clark Fork near Heron, Mont...................................................... 242

Pend Oreille Lake at Hope, Idaho................................................. 243

Priest Lake at outlet, near Coolin, Idaho...................................... 244

Priest River near Coolin, Idaho................................................ 245

Priest River near Priest River, Idaho.......................................... 246

Calispell Creek near Dalkena, Wash............................................. 247

Pend Oreille River below Z Canyon, near Metaline Falls, Wash..................... 248

Smaller Reservoirs in Pend Oreille River basin in Montana........................ 249

Columbia River at international boundary........................................... 250

Kettle River basin:

Kettle River near Ferry, Wash.................................................... 251

Curlew Creek near Malo, Wash................................................... 252

Kettle River near Laurier, Wash.................................................. 253

Colville River basin: 

Colville River:

Loon Lake near Loon Lake, Wash................................................. 254

Mill Creek near Colville, Wash................................................. 255

Colville River at Kettle Falls, Wash............................................. 256

Spokane River basin:

Coeur d'Alene River (head of Spokane River) above Shoshone Creek, near Prichard,

Idaho...................................................................... 257

Coeur d'Alene River near Prichard, Idaho......................................... 258

Coeur d'Alene River at Enaville, Idaho........................................... 259

Coeur d'Alene River near Cataldo, Idaho.......................................... 260

St. Joe River at Calder, Idaho................................................. 261

St. Maries River at Lotus, Idaho............................................. 262

Coeur d'Alene Lake at Coeur d'Alene, Idaho....................................... 263

Spokane River:

Hayden Creek below North Fork, near Hayden Lake, Idaho......................... 264

Hayden Lake at Hayden Lake, Idaho.............................................. 265

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho............ 266

Rathdrum Prairie Canal at Huetter, Idaho....................................... 267

Spokane Valley Farms Co.'s canal at Post Falls , Idaho.......................... 268

Spokane River near Post Falls , Idaho............................................. 269

Liberty Lake at Liberty Lake, Wash............................................. 270

Spokane River at Greenacres, Wash................................................ 271

Spokane River below Trent Bridge, near Spokane, Wash............................. 272

Spokane River below Green Street, at Spokane, Wash............................... 273
CONTENTS IX

Qaglng-station records Continued.

Upper Columbia River basin Continued.

Spokane River basin Continued. Page 

Spokane River at Spokane, Wash................................................... 274

Latah Creek at Spokane, Wash................................................... 275

Spokane River above Seven-Mile Bridge, near Spokane, Wash........................ 276

Little Spokane River at Elk, Wash.............................................. 277

Little Spokane River at Dartford, Wash......................................... 278

Little Spokane River near Dartford, Wash....................................... 279

Long Lake at Long Lake, Wash..................................................... 280

Spokane River at Long Lake, Wash................................................. 281

Franklin D. Roosevelt Lake at Grand Coulee Dam, Wash............................... 282

Columbia River at Grand Coulee Dam, Wash........................................... 283

Okanogan River basin;

Okanagan River at Okanagan Palls, British Columbia............................... 284

Osoyoos Lake near Oroville, Wash................................................. 285

Okanogan River at Oroville, Wash................................................. 286

Similkameen River near Nighthawk, Wash.......................................... 287

Okanogan River near Tonasket, Wash............................................... 288

Methow River basin:

Methow River at Twisp, Wash...................................................... 289

Chelan River basin:

Stehekin River (head of Chelan River) at Stehekin, Wash.......................... 290

Railroad Creek at Lucerne, Wash................................................ 291

Lake Chelan at Chelan, Wash...................................................... 292

Chelan River at Chelan, Wash..................................................... 293

Entiat River basin:

Entiat River at Entiat, Wash..................................................... 294

Wenatchee River basin:

Wenatchee Lake near Plain, Wash.................................................. 295

Wenatchee River below Wenatchee Lake, Wash....................................... 296

Wenatchee River at Plain, Wash................................................... 297

Icicle Creek above Snow Creek, near Leavenworth, Wash.......................... 298

Wenatchee River at Peshastln, Wash............................................... 299

Douglas Creek basin:

Douglas Creek near Alstown, Wash................................................. 300

Douglas Creek near Palisades, Wash............................................... 301

Douglas Creek at Palisades, Wash................................................. 302

Columbia River at Trinidad, Wash................................................... 303

Crab Creek basin:

Crab" Creek at Irby, Wash......................................................... 304

Wilson Creek at Wilson Creek, Wash............................................. 305

Crab Creek near Moses Lake, Wash................................................. 306

Rocky Ford Creek:

Park Lake near Coulee City, Wash............................................. 307

Park Creek below Park Lake, near Coulee City, Wash........................... 308

Blue Lake near Coulee City, Wash............................................. 309

Lenore Lake near Soap Lake, Wash............................................. 310

Soap Lake near Soap Lake , Wash............................................... 311

Rocky Ford Creek near Ephrata, Wash............................................ 312

Moses Lake at Moses Lake, Wash................................................... 313

Crab Creek near Warden, Wash..................................................... 314

Crab Creek near Smyrna, Wash..................................................... 315

Yaklma River basin:

Yakima River near Martin, Wash................................................... 316

Kachess River near Easton, Wash................................................ 317

Cle Elum River near Roslyn, Wash............................................... 318

Yaklma River at Cle Elum, Wash................................................... 319

Teanaway River near Cle Elum, Wash............................................. 320

Yakima River at Umtanum, Wash.................................................... 321

Naches River: 

Bumping River near Nile, Wash................................................ 322

American River near Nile, Wash............................................. 323

Tieton River at Tieton Dam, near Naches, Wash................................ 324

Tieton River at headworks of Tieton Canal, near Naches, Wash................. 325

Naches River below Tieton River, near Naches, Wash............................. 326

North Fork Ahtanum Creek (head of Ahtanum Creek) near Tampico, Wash............ 327

South Fork Ahtanum Creek at Conrad Ranch, near Tampico, Wash................. 328

Ahtanum Creek at Union Gap, Wash............................................... 329

Yakima River near Parker, Wash................................................... 330

Yaklma River at Kiona, Wash...................................................... 334

Reservoirs in Yakima River basin, Wash........................................... 336

Miscellaneous discharge measurements.................................................. 338

Index................................................................................ 351

ILLUSTRATION

Page 

Figure 1. Gaging-station structures: A, Columbia River at Trinidad, Wash., B,

Columbia River at Trinidad, Wash........................................ 5

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

on surface water supply................................................. 9

3. Comparison of discharge at two key gaging stations during 1951 water year

with median discharge for 25-year period................................ 13
SURFACE WATER SUPPLY OP PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA BASIN, 1951

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, 1951. 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 12,400 gaging stations in the 48 States and at many others in the Territories of Alaska and Hawaii. On September 30, 1951, the Geological Survey and cooperating 

organizations were maintaining 6,730 gaging stations, including those in Alaska and Hawaii. 

Miscellaneous discharge measurements were made at many other points in the 1951 water year.

COOPERATION

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

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:

Idaho: Idaho Department of Reclamation, M. R. Kulp, State reclamation engineer. 

Montana: Office of State Engineer, F. E. Buck; State Water Conservatior Board. 

Washington: State Department of Conservation and Development, J. V. Refers, 

director, succeeded by W. A. Galbraith, and C. J. Bartholet, supervisor of hydraulics for the department; State'Department of Fisheries, Alvin Anderson, director, 

succeeded by R. J. Schoettler; State Department of Game, D. W. Clarke, director; 

State Department of Highways, W. A. Bugge, director; cities of Bellingham, 

Bremerton, Everett, Olympia, Seattle, and Tacoma; Intercounty River Improvement 

Commission; Grays Harbor County Utility District No. 1; Lewis County Public Utility District No. 1; Pend Oreille County Public Utility District No. 1; Douglas, 

Grant, Pend Oreille, Skaglt, and Whatcom Counties, and Diking District No. 2 of 

Pend Oreille County.

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 19 gaging stations of which 

4 were in Idaho, 4 in Montana, and 11 in Washington.

Assistance was also furnished by the Soil Conservation Service of the United States Department of Agriculture, the United States Department of the Army, the Weather Bureau of 

the United States Department of Commerce, Bureau of Reclamation and the Office of Indian 

Affairs of the United States Department of the Interior, and the United States Department 

of State. Acknowledgment is due to the Forest Service of the United States Department of

1
2 SURFACE WATER SUPPLY, 1951, PART 12

Agriculture and the Weather Bureau for occupation permits and furnishing social reports 

of watershed conditions and precipitation records.

Full cooperation exists between the Geological Survey of the United States Department 

of the Interior and the Water Resources Division, Department of Resources and Development, 

Canada. On waters adjacent to the international boundary certain stations are maintained 

Jointly by the United States and Canada under the terms of the Boundary Waters Treaty of 

1909, and others are maintained under a subsequent agreement between the tvo Governments. 

The records from all these stations are obtained in such a manner as to be equally acceptable and available in either country. These stations are herein designate! "International 

gaging stations."

The following organizations aided in collecting records:

Idaho: Washington Water Power Co.

Montana: Montana Power Co.

Washington: Crown Zellerbach Corporation; Puget Sound Power & Lig^it Co.; 

Rayonier, Inc.; Washington Water Power Co., and Weyerhaeuser Timber Ci.

DIVISION OF WORK

The stream gaging was done by the Water Resources Division of the Geological Survey, 

Carl G. Paulsen, chief hydraulic engineer, and Joseph V. B. Wells, chief o f the Surface 

Water Branch., The data for stations In the several States were collected and prepared for 

publication under the supervision of the district engineers at the offices listed below. 

The records were reviewed and the manuscript prepared for publication unde- the direction 

of B. J. Peterson, chief, Annual Reports Section.

State District office Address

Idaho a/ .......................... Boise...................... 429 F sderal Building.

Montana £/ ........................ Helena..................... 408 F Jderal Building.

Washington........................ Tacoma..................... 207 F Jderal Building.

a/ Including Clark Fork near Heron, Mont, 

b/ Except for Clark Pork near Heron.

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.
EXPLANATION OP DATA 3

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 stage-discharge 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. tftiless 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 noncontribi'ting areas, 

within the area unless otherwise noted.

NEW 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 has been changed. In this report, in a downstream 

direction along the main stem all stations on a tributary entering above a mair-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 ttis report 

represents one rank. This new downstream order and system of indention show wl-ich gaging 

stations are on tributaries between any two stations on a main stem and the rark 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 tire uppermost 

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

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 188?. These
4 SURFACE WATER SUPPLY, 1951, PART 12

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 stafe-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 bssis of indirect 

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

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 becaus° 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 fo 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.

At some gaging stations the stage-discharge relation is affected1 by bac'<water from 

reservoirs, tributary streams, or other sources. This necessitates the us? 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 of 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.

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 "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
A, COLUMBIA RIVER AT TRINIDAD, WASH. 

Recording-gage shelter and stilling well.

FIGURE 1. GAGING-STATION STRUCTURES.

B, COLUMBIA RIVER AT TRINIDAD, WASH. 

East cable tower.
6 SURFACE WATER SUPPLY, 1951, PART 12

ty^es of gages, locations, and daturas of previous gages for which discharge records are 

generally equivalent to those at the present site. Under "Average discharge11 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 dally discharge If there Is extensive regulation (also the minimum discharge if useful); and the minimum gage height (unless it is 

of no Importance). 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 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 report 

number, "W" means water-supply paper. 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.

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.
ACCURACY OF FIELD DATA AND COMPUTED RESULTS 7

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 state-) in the 

station description.

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

each month are underlined. If the value 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 values; 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 mon*;h may be 

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"). Values for cubic feet pe- 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 values 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 strean 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 usually given in the first report in which data for the reservoir are published, 

but it is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of streamflow data depends primarily on (1) the stability of We 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 irterpretation 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 tl-an 5 per28899S O - 54 - 2
8 SURFACE WATER SUPPLY, 1951, PART 12

cent; "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, values 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, unles<< it is so stated. 

Even at those stations where adjustments are made, large errors in computed runoff may 

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 o*" 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, Oge^chee 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 at 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.
PUBLICATIONS
10 SURFACE WATER SUPPLY, 1951, PART 12

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 2.

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 18S4-19O1, In reports of the Geological Survey 

(A - Annual Report; B = Bulletin; W = Water-Supply Paper)

Report

10th A pt 

llth A pt 

12th A pt 

13th A pt 

14th A pt

16th A, pt

W 11......

ISth A, pt 

W 15......

19th A, pt 

W 27......

. 2 

. 2 

. 2 

. 3 

. 2

. 2

. 4

4

2Oth A, pt. 4 

W 35 to 39... 

21st A, pt. 4 

W 47 to 52... 

22d A, pt. 4. 

W 65, 66..... 

W 75.........

Character of data

Descriptive Information only.

Descriptive Information only. 

Descriptions, measurements, gage heights, ratings, and 

monthly discharge.

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 stream 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. ..........................................

Year

1SS4 to September 1890. 

1864 to June 3O, 1891. 

1884-92. 

1888-93. 

1693-94.

1895.

1896. 

1895-96. 

1697.

1897.

1897. 

1898.

1898.

1898. 

1899. 

1899. 

1900. 

190O. 

19O1. 

19O1.

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 Pacific slope 

basins In Washington and upper Columbia River basin, 1899-1951

Year

1899

1900

1901

1902

1903

1904

1905

1906

19O7-8

1909

191O

W.S.P.no.

38

51

66, 75

85

100

135

178

214

252

272

292

Year

1911

1912

1913

1914

1915

1916

1917

1918

1919-20

1921

W.S.P.no.

312

332-A

362-A

392

412

442

462

482

512

532

Year

1922

1923

1924

1925

1926

1927

1928

1929

1930

1931

W.S.P.no.

552

572

592

612

632

652

672

692

707

722

Year

1932

1933

1934

1935

1936

1937

1938

1939

1940

1941

W.S.P.no.

737

752

767

792

812

832

862

882

9O2

932

Year

1942

1943

1944

1945

1946

1947

1948

1949

1950

1951

W.S.P.no.

962

982

101E

1042

1062

1092

1122

1152

1182

1216

The records at most of the stations.discussed in these reports extend over many years. 

Miscellaneous measurements at many points other than regular gaging stations have been 

made each year and are published under "Miscellaneous discharge measurements" 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.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 11

Each of the reports on the surface-water supply for the year 1939 (Water-Supply Paper 

882 for the Pacific slope basins in Washington and the upper Columbia River ba'sin) 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 following table lists reports of this type for 

the area covered by this report.

Reports containing compilations of records of diaoharge by States and drainage basins

Water-Supply 

Paper Ho.

916.........

Period

1898-1938

Report

Surface waters of upper Columbia River basin (Mont., Idaho).

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

Montana 

do

Washington

Period

1S98-1911 

1898-1938

1878-1933

Report

5th biennial report..... 

Water resources of Montana, Part 2, 

Vol. IV. 

Bull. 5, Monthly and yearly summaries 

of hydrometrlc data.

laaued by

Office of the State Engineer. 

Montana Agricultural Experiment Station. 

Department of Corservatlon 

and Development.

Note. In addition to the records contained in the reports Hated above, the following States have 

laaued annual or biennial reports In which are contained records of discharge: Idaho, Montana, 

Washington.

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. The more recent of these special reports also contain other pertinent hydrologic information and analyses aid compilations of data relating to earlier notable floods. The following list gives the numbers 

and titles of these reports:

Title

771......... Floods in the United States, magnitude and frequency.

847......... Maximum discharges at stream-measurement stations through September 1938.

968-B....... Floods of the Puyallup and Chehalis River basins, Washington.

1080........ Floods of May-June 1948 in Columbia River basin.

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL St^VEY

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 1950 to September 1951 by agencies other than the Geological Survey. The records of these stftions are 

not contained in publications of the Geological Survey, nor have they been published 

elsewhere.
12 SURFACE WATER SUPPLY, 1951, PART 12

Records of discharge collected by agencies other than the Geological S irvey

Stream

Flint Creek, North Fork

Little Blacktall Creek. 

Prospect Creek. ........

Do. ................. 

Toppenlsh Creek. .......

Do............... ...

Location

station near Thompson 

Falls, Mont.

Kallspell, Mont. 

At Georgetown Lake, 

near Anaconda, Mont.

At Nine Mile Inn, near 

Butte , Mont . 

Below Montana Power Co. 

substation near 

Thompson Falls , Mont .

Creek, near Toppenlsh, wash. 

Near Sat us, wash. ..... 

Near Fort Slmcoe, 

Wash. 

Near Alfalfa, Wash. . . .

Period

1949-51*

1949-51* 

1949-51*

193Z-51 

1909-51

1932-51

1910-15, 

1940-51

Collected by

U. S. Forest Service..

U. S. Forest Service.. 

U. S. Forest Service..

Affairs .

.. . .do. ............... 

Office of Indian 

Affairs . 

... .do... .............

Remarks

since 1945.

Unpublished.

Do. 

Do.

since 19Z3.

since 1924.

Unpublished. 

 ( Unpublished 

since 1924. 

Unpublished.

since 1915.

* Sage heights only.

t Records for earlier years published In water-supply papers of Geological Surve-'.

* Fragmentary.

Note. Records of daily discharge for many canals and drains In Washington and Montana for 1951 

and earlier years have been collected by the Bureau of Reclamation and the Office of Indian Affairs 

of the United States Department of the Interior In connection with irrigation and drainage projects. 

These records have not been published. The Northern Rocky Mountain Forest and Ran^e Experiment 

Station collects records of runoff from an area of 960 acres on Benton Creek near Priest River, 

Idaho.

HTDROLOGIC CONDITIONS

The water year 1951 was characterized by above normal runoff over most of the Pacific 

slope basins in Washington and upper Columbia River basin. For a description of floods 

in Washington in February see Water-Supply Paper 1227-D, "Summary of Floods in the United 

States during 1951," now in preparation. For two key stations in the area covered by this 

report, a comparison of monthly and yearly mean discharge during the 1951 water year with 

the median discharge for the 25-year period 1921-45 is shown in figure 3 on the opposite 

page.
HEDROLOGIC CONDITIONS 13

6000

South Fork Skykomish River near Index, Wash 

Drainage area,355 sq mi.

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. The

Spokane River at Spokane, Wash 

Drainage area, 4,350 sq mi.

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. The

Median of monthly mean discharge for 25-year period 1921-45. 

ggggggggl Monthly mean discharge during water year 1951.

Figure 3. Comparison of discharge at two key stations during 1951 water year with median 

discharge for 25-year period.
14 GAGfflG-STATION RECORDS

Pacific slope basins north of Columbia River

NASELLE RIVER BASIN 

Naselle River near Naselle, Wash.

Location. Lat 46°22i25", long. 123°44'45" in Sw£ sec. 1, T. 10 N., R. 9 W., on left bank

150 ft downstream from road crossing, l| miles upstream from Salmon Creek, and 3-| miles

east of Naselle.

Drainage area. 55.3 sq mi (revised). 

Records available. May 1929 to September 1951. 

Gage. Staff gage and crest-stage indicator: gage read twice daily. Altitude of gage is

24 ft above mean sea level (by barometer). 

Average discharge. 22 years, 427 cfs. 

Extremes. Maximum discharge during year, 6,830 cfs Feb. 9 (gage height. 12.10 ft, from

graph based on gage readings); minimum observed, 19 cfs Sept. 21-24 (gage height, 1.74

ft).

1929-51: Maximum discharge, 10,400 cfs Jan. 22, 1935 (gage height, 15.9 ft, from

floodmarks), from rating curve extended above 3,900 cfs; minimum observed, 19 cfs Sept.

12-14, 1949, Sept. 21-24, 1951; minimum gage height observed, 1.72 ft Aug. 29, 1935. 

Remarks. Records good. No diversion or regulation. 

Revisions. W 932: Drainage area.

Rating tables, water year 195O-51 (gage height, In feet, and discharge. In

cubic Teet per second) 

(Shifting-control method used Oct. 1-4)

2.1 

2.3 

2.5 

2.7 

3.O 

3.3

102 

ISO 

236 

345

to Feb.

463

637

660

1.14O

1,440

1,770

9

7.O

6.O

9.O

10. 0

11.0

2,470

3,270

4,070

4,900

5,600

Feb. 10

1.7 15

1.9 36

2.1 76

2.3 120

2.5 170

2.7 220

3.0 305

to Sept.

3.3

3.6

4.0

4.5

.5.0

5.5

6.0

30

410

52O

680

920

1,170

1,460

1,770

Note. Same as preceding table above 6.O ft.

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

2B

29

3O

31

 total

Mean

Cfem

In.

Ac-fl

Oct.

52

62

262

219

614

522

349

1.360

756

459

330

269

216

163

174

294

367

360

294

252

225 

203

155

379

1,060

1,350

1,230

1,090

960

14,210

456

6.26

9.56

26,190

Nov.

1,170 

»1,040 

905

707

637

522

455

367

341

301

256

232

'2O9

315

9O5

36O

756

592

6O5

1,230

1,960

1,700 

1,640

2a90

2,120

1,770

1,410

1.O30

915

-

27,796

927

16.6

16.69

55,140

Dec.

1,350 

,O4O 

,06O

,26O

,120

» ,53O

,36O

,200

,060

,O6O

eeo

7O7

574

505

756

96O

1,700

1,170

960

1,230

1,56O

2,400

3.99O 

2,120

1,360

96O

760

905

96O

1,320

1,200

39 , 157

1,263

22.6

26.33

77,670

Jan.

960 

2.550 

2,120

1,47O

1,090

63O

66O

546

451

430

459

416

1,040

1.26O

2,260

2,050

2,O50

»1,26O

905

756

1,910

1,500

1.O9O 

1,060

1,230

1,500

1,060

663

552

447

360

34,979

1,126

20.4

23.52

69,360

Feb.

312 

660 

7O7

663

574

592

2,670

2,400

5.440

4,990

3,590

1,640

1,170

795

660

540

5OO

506

7OO

1,340

97O

720

56O 

520

445

362

347

502

_

-

35,157

1,256

22.7

23.64

69,730

Mar.

264 

251 

272

361

296

272

269

245

 235

222

215

62O

695

720

1.400

1,200

645

64O

560

520

560

600

512 

459

420

420

4OO

356

354

640

516

15,561

5O3

9.10

10.46

30,900

Apr.

3"56 

354

316

261

257

24O

222

210

195

162

175

»17O

162

146

145

140

132

126

120

113

106

106 

106

102

97

135

431

232

192

-

6,044

201

3.63

4.06

11,990

May

T5B" 

150

150

145

140

145

132

125

120

122

125

126

115

111

106

102

99

97

93

69

66

97 

106

»120

106

1O2

97

93

66

6O

3,604

116

2.10

2.42

7, ISO

June

* 

74

76

60

76

76

72

66

66

66

66

70

66

64

60

60

56

56

52

52

51

49

49

49

45

45

43

42

40

1,631

61. 0

1.10

1.23

3,630

July

40 

40 

4O

42

49

54

47

42

40

4O

 35

35

35

35

35

35

35

34

34

33

33

32

32 

32

32

33

33

32

32

30

3O

1,131

36.5

0.66O

O.76

2,240

Aug.

29 

29 

26

26

26

26

26

25

26

26

26

30

30

26

26

25

 25

23

23

23

22

22

22

Si

22

22

23

29

35

30

25

6O7

26. 0

O.47O

0.54

1,600

Sept.

25 

25 

23

23

22

22

32

64

35

30

26

26

24

22

22

22

22

22

22

21

IS

19

19 

 22

66

62

40

99

322

1.040

-

2.26O

76.0

1.37

1.53

4,520

Calendar year 195O: Max 4,610 Mln 29 Mean 6O1 Cfsm 1O.9 In. 147.43 Ac-ft 434,600

Water year 195O-51: Max 5,440 Mln 19 Mean 500 Cfem 9.O4 In. 122.76 Ac-ft 362, 1OO

Discharge measurement made on this day.
NEMAH RIVER BASIN 15

North Nemah River near South Bend, Wash.

Location.--Lat 46e 29'30", long. 123°50'00", in SE£ sec. 30, T. 12 N., R. 9 W., on right 

bank 500 ft downstream from Finn Creek, 5 miles upstream from mouth, and 12 miles south 

of South Bend.

Drainage area. 18.0 sq mi.

Records available. February 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is about 50 ft above mean sea level (from 

topographic map).

Average discharge. 5 years, 124 cfs.

Extremes.--Maximum discharge during year, 1,420 cfs Feb. 9 (gage height, 7.78 ft); minimum, 

 4.7 cfs Sept. 21, 22, 23; minimum gage height, 1.37 ft Oct. 2, 3.

1946-51: Maximum discharge, 1,550 cfs Dec. 11, 1946, Feb. 10, 1949; maximum gage 

height, 8.21 ft Dec. 11, 1946; minimum discharge, that of Sept. 21, 22, 23, 1951.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

No diversion or regulation.

Rating tables, water year 1950-51 (gage height, in feet, and discharge, in cubii feet 

per second)

1.3 

1.5 

1.7 

Z.O

Oct. 1 to Feb. 8

Z.3 125

2.6 179

3.0 259

3.5 354

Feb. 9 to Sept. 30

4.0 452

4.5 556

5.0 667

6.0 905

1.4 

1.6 

1.8 

2.0 

2.3

4.3

14

2.6 

3.0 

3.5 

4.0 

4.5

136

214

324

437

552

5.0 

6.0 

7.0

667

905

1,180

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4 

5

6

7

8

9

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.

Ac-ft

Oct.

15

14.5

15

22

113

86

191

158

108

380

239

149

104

84

68

60

55

91

90

79

68

63

57

54

92

117

269

392 

335

288 

268

4,124.5

133

7.39

8.52

8,180

Nov.

297

 278

241

205

181

158

135

117

103

91

83

75

II

80

209

402

306

245

205

237

297

462

432

482

524

524

472

392 

306

412

8,022

267

14.8

16.57

15,910

Dec.

392

326

306

335 

306

442

 382

326

344

306

259

215

181

156

268

344

442

316

259

316

354

576

851

535

382

306

278

382 

326

422 

364

10,977

354

19.7

22.68

21,770

Jan.

335

767

556

402 

326

268

237

209

191

187

195

181

367

402

622

640

600

 382

297

306

578

432

335

278

297

316

259

215 

185

164 

146

10,675

344

19.1

22.06

21,170

Feb.

137

207

203

197 

181

199

644

514

1.160

1,030

831

494

313

227

208

152

152

175

280

437

276

197

156

138

121

105

90

a85

-

6,929

319

17.7

18.45

17,710

Mar.

a80

a75

a65

a 105 

a90

a85

a80

375

a70

a65

aeo

200

280

232

357

302

216

169

140

126

126

119

103

96

90

87

81

74

81

138 

105

4,012

129

7.17

8.29

7,960

Apr.

li

87

80

73 

68

62

56

54

50

48

45

42

41

 40

38

36

35

34

33

32

31

30

29

28

27.

27

61

90 

54

45

1,470

49.0

2.72

3.04

2,920

May

39

36

34

35 

34

34

34

30

29

29

29

29

29

27

26

25

25

23

23

22

21

21

25

35

33

26

24

 24 

23

21 

20

865

27.9

1.55

1.79

1,720

June

19.5

18.5

19.5

!i.5

19.5

18.5

18

17.5

17.5

17.5

18.5

18

17.5

16

16

15

15

14.5

14

14

14

14

14

13.5

13

13

12 

12

11^5

481.0

16.0

0.869

0.99

954

July

12

13

13

M

13.5

13

12

12

11.5

10.5

 10.5

10

10

10

10

10

10

10

9.7

9.7

9.7

9.7

9.7

10

9.7

8.7

8.7 

8.7

trf

328.7

1O.6

0.589

0.68

652

Aug.

7.7

7.2

7.7

7.2 

7.2

7.2

7.2

7.2

7.7

7.7

7.2

7.7

7.2

6.8

6.8

6.8

6.3

 6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.3

6.8

10 

9.2

7.2 

7.2

219.9

7.09

0.394

0.45

436

Sept.

6.3

6.3

6.3

6.3 

5.9

5.5

12

10.5

7.2

6.3

6.3

5.9

5.5

5.5

5.1

5.5

5.5

5.5

5.5

5.5

4.7

4.7

5.1

 5.9

17.5

10

12

31 

164

196

579.3

19.3

1.07

1.20

1,150

Calendar year 1950: Max 1,000 Mln 11 Mean 166 Cfsn 9.22 In. 125.56 Ac-ft 12O.5OO

Water year 195O-51: Max 1,180 Mln 4.7 Mean 139 Cfsm 7.72 In. 1O4.72 Ao-ft 1O0.5OO

Peak discharge (base. 95O cfs).--Dec. 22 (9 p.m.) 98O cfs (6.31 ft); Jan. 2 (12:30 p.m.) 1,12O cfs 

(6.76 ft)j Feb. 9 (1:30 p.m.) 1,420 cfs (7.78 ft). 

* Discharge measurement made on this day. 

a Ho gage-height record; discharge estimated on basis of records for stations on nearby streams.
16 WILLAPA RIVER BASIN

Wlllapa River at Lebam, Wash.

Location. La t 46°33'50", long. 123e 33'50", in SVf£ sec. 33, T. 13 N., R. 7 W., on left 

bank half a mile west of Lebam and 1 mile upstream from Walker Creek.

Drainage area. 41.4 sq ml.

Records available. June 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 160 ft (from topographic map).

Extremes. Maximum discharge during year, 3,460 cfs Feb. 9 (gage height, 13.80.ft); 

minimum, 1.4 cfs Sept. 22.

1948-51: Maximum discharge, 4,930 cfs Feb. 22, 1949 (gage height, 17.53 ft, from 

high-water mark In gage house), from rating curve extended above 2,200 cfs; minimum, 

that of Sept. 22, 1951.

Remarks. Records excellent except those above 2,500 cfs and those for periods of shifting control, which are fair. No diversion or regulation.

Sating table, water year 1950-51, except periods of Shifting control 

height, In feet, and discharge, In cubic feet per second)

2.38

2.5

2.7

2.9

3.1

3.4

2.2

9.0

29

57

90

147

3.7 

4.0 

4.5 

5.0 

5.5 

6.0

213

285

410

560

710

860

7.0

8.0

9.0

10.0

11.0

13.0

1,160

1,460

1,780

2,120

2,480

3,180

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

S

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

Cfsn

In.

Ac-ft

Oct.

f89.8

14

48

44

54

71

63

232

141

88

63

56

46

39

37

101

139

119

92 

75 

65 

60

125

199 

515

860

555

425 

410

4,768.8

154

3.72

4.28

9,460

Nov.

410

335

 273

225

195

166

147

129

118

108

101

94

87

35

235

590

560

425

360

665

1.160 

956 

665 

620

695

695 

605

530

425

755

12,385

413

9.98

11.13

24,570

Dec.

770 

545

500

515

425

530

545

 500

485

410

360

302

259

232

372

500

665

515

425

530

635 

920 

-755 1.130 

515

385 

348

425

372

515 

530

15,915

515

12.4

14.30

31,570

Jan.

425 

1,160

1,190

755

515

360

322

268

235

232

232

206

355

410

1.400

 1,280

1,220

740

530

500

1,220 

920 

635 

530

560

605 

440

348

280

242 

211

18,291

590

14.3

16.43

36,280

Feb.

197 

530

635

575

425

398

980

1,250

3.070

2,020

1,400

890

590

425

360

288

271

283

348

575

455 

360 

298 

259

232

204 

 179

162

-

-

17,659

631

15.2

15.86

35,030

Mar.

149 

135

139

188

175

164

158

149

141

133

145

455

605

500

800

650

455

348

290

254

263 

259 

225 

204

190

181 

166

153

181

292 

259

8,406

271

6.55

7.55

16,670

Apr.

m177

160

145

133

125

116

110

103

92

87

82

76

 73

70

67

62

59

56

52 

50 

48 

45

44

41 129

82

70

2,851

95.0

2.29

2.56

5,650

May

63 

TJ

54

62

62

56

59

52

48

46

45

44

45

42

41

38

37

36

33

32

29 

28 

34 

36

37

 30 

28

29

27

25 

24

1,279

41.3

0.998

1.15

2,540

June

«

20

21

21

21

21

20

18

18

18

19

19

18

17

12

13

12

11.5

11.5

10.5 

10.5 

11.5 

11.5

10.5

10.5 

10.5

.9.8

^7S

9.8

458.9

15.3

0.370

0.41

910

July

9.8 

9.8

9.8

11.5

13

15

13

12

11.5

10.5

9.0

8.3

 8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3

8.3 

7.6 

6.S 

6.S

7.6

8.3 

7.6

6.S

6.S

1*1 

6.3

279. Z

9.01

0.218

0.25

554

Aug.

5.7 

5.7

6.3

6.3

6.3

5.7

5.7

5.7

6.9

6.9

6.9

6.9

6.9

6.3

5.7

5.7

5.1

4.0

 4.0

4.0

4.0

H4.0

5.1

4.5 

5.1

6.9

6.3

5.7 

4.0

169.3

5.46

0.132

0.15

336

Sept.

4.5 

4.5

4.5

4.0

3.5

4.5

9.8

9.8

5.7

4.5

3.5

3.5

3.5

2.6

2.6

3.0

3.0

3.5

4.0

3.0

3.5

ft*

4.0

 6.3

5.7 

3.5

14

30

85

244.7

8.16

0.197

0.22

485

Calendar year 1950: Max 1,920 Mln 7.2 Mean 260 Cfsn 6.28 In. 85,21 Ac-ft 188,200

Water year 1950-51: Max 3,070 Mln 2.2 Mean 227 Cfsm 5.43 In. 74.29 Ac-ft 164',100

Peak discharge (base. 1.800 efs ). Feb. 9 (1:30 p.m.) 3,460 cfs (13.80 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Oct. 1-27, June 8 to Aug. 10, Aug. 24 to Sept. 29.
WILLAPA RIVER BASIN

Willapa River near Willapa, Wash.

Location. Lat 46°39'00", long. 123°38'40", in NWt sec. 2, T. 13 N.. R. 8 W., on right 

Dank Just below Mill Creek, 0.6 mile upstream from bridge, and 2t miles sortheast 

of Willapa.

Drainage area. 130 sq mi.

Records available. August 1947 to September 1951 (fragmentary prior to August 1948).

. Water-stage recorder. Altitude of gage is 15 ft (by barometer). Prior to July 

8, 1948, at site 60 ft upstream at different datum.

Extremes. Maximum discharge during year, 10,300 cfs Feb. 9 (gage height, 21.86 ft); 

minimum, 15.5 efs Sept. 22 (gage height, 2.93 ft).

1947-51: Maximum discharge, 11,400 cfs Feb. 22, 1949 (gage height, 24.22 ft), from 

rating curve extended above 7,300 cfs; minimum, that of Sept. 22, 1951.

Remarks. Records excellent except those for period of shifting control, which are fair. 

No diversion or regulation.

Rating table, water year 1950-51, except period of shifting control (gage height, 

In feet, and discharge, In cubic feet per second)

2.8 

3.0 

3.2 

3.4 

3.7

12.5

22

36

54

4.0 

4.3 

4.6 

5.0 

5.5

137

195

270

390

565

6.0 

7.0 

8.0 

9.0 

10.0

750

1,150

1,550

2,050

2,550

12.0

14.0

16.0

18.0

20.0

3,600

4,800

6,000

7,400

8,800

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

AC-ft

Oct.

46

*2

45

52

169

228

288

354

297 

1,060

725

397

276

220

185

159

141

308

495

442

333

273 

230

202

385

730

1,340

2.500

2,020

1,470

1,390

16,803

542

4.17

4.81

33,330

Nov.

1,390

1,230

 1,010

850

750

652

582

512

450 

411

372

342

"333"

652

1,750

1,750

1,430

1,150

1,650

2,850

3.000 

2,350

2,350

2,550

2,650

2,350

2,000

1,600

2,250

-

41,534

1,384

10.6

11.88

82,380

Dec.

2,550

1,950

1,750

1,900

1,650

2,000

 2,050

1,850

1,700 

1,470

1,310

1,110

950

830

1,190

1,650

2,250

1,750

1,430

1,700

2,200

2,880 

4.560

2,900

2,050

1,470

1,270

1,550

1,350

1,750

1,750

56,770

1,831

14.1

16.24

112,600

Jan.

1,470

3,560

4.260

2,750

2,000

1,470

1,230

1,010

870 

850

850

770

1/S55

1,600

4,170

4,020

 4,260

2,600

1,900

1,550

3,700

3,050 

2,200

1,950

2,000

2,250

1,600

1,270

1,030

890

770

63,130

2,036

15.7

18.06

125,200

Feb.

710

1,510

1,800

1,700

1,350

1,230

3,200

3,660

8.790 

7,610

5,340

3,170

2,150

1,550

1,350

1,110

1,010

1,070

 1,190

2,150

1,600

1,310 

1,070

950

850

750

670

600

_

,.

-

59,450

2,123

16.3

17.01

117,900

Mar.

565

512

512

730

710

635

600

582

530 

495

478

1,110

1,950

1,650

2.500

2,350

1,650

1,270

1,070

930

970

990 

850

750

690

670

618

565

582

1,070

910

29,494

951

7.32

8.44

58,500

Apr.

790

155

635

582

530

478

456

408

372 

339

324

315

300

270

 258

250

235

222

208

200

187

177 

173

167

159

153

198

618

333

265

-

10,292

343

2.64

2.94

20,410

May

238

2TF

195

208

218

193

208

185

175 

171

171

161

167

151

148

137

133

130

119

116

113

103 

117

132

171

 130

116

117

111

105

100

4,754

153

1.18

1.36

9,430

June

97

93

90

93

95

95

93

89

84 

81

79

82

82

79

74

69

64

63

61

59

56

54 

53

53

52

50

49

47

44

42

-

2,122

70.7

0.544

0.61

4,210

July

42

42

42

44

48

57

52

44

43 

43

39

35

 35

35

35

35

34

34

33

32

32

31 

30

30

31

31

30

30

30

28

28

1,135

36.6

0.282

0.32

2,250

Aug.

27

26

26

26

26

24

24

24

24 

27

29

29

29

27

24

24

23

21

 21

20

20

20

T§

20

21

21

29

35

3l

27

763

24.6

G.189

0.22

1,510

Sept.

26

25

24

22

21

20

23

46

34 

25

22

20

19

17.5

17

16.5

17

17

17.5

17.5

16.5

if 17

35

49

34

92

179

832

1,7335

57.8

0.445

0.50

3,440

Calendar year 1950 : Max 6,630 Mln 30 Mean 912 Cfsm 7.02 In. 95.19 Ac-f-. 660,000

Water year 1950-51 : Max 8,790 Mln 16 Mean 789 Cfsm 6.07 In. 82.39 Ac-f-. 571,200

Peak dlscharee (base. 5,000 cfs). 

(15.12 ft}; Jan. 17 (1 a.m.) 5,340 cfs

Dec. 23 (2 a.m.) 5,220 cfs (14.73 ft); Jan. 2 (12 p.m.) 5,460 cfs 

(14.93 ft); Feb. 9 (5:30 p.m.) 10,300 efs (21.86 ft).

* Discharge measurement made on this day.
18 NORTH RIVER BASIN

North River near Raymond, Wash.

Location. Lat 46M9,, long. 123°51', in sec. 6, T. 15 N., R. 9 W., on left bank l£ miles 

upstream from Salmon Creek and 10 miles northwest of Raymond.

Drainage area. 219 sq mi.

Records available.--August 1927 to September 1951,

Gage. Water-stage recorder. Datum of gage is 7.39 ft above mean sea level (Western 

Washington Electric Light & Power Co. benchmark).

Average discharge. 24 years, 936 cfs.

Extremes. Maximum discharge during year, 14,800 cfs Feb. 11 (gage height, 11.0 ft, from 

 high-water mark in well); minimum, 21 cfs Aug. 24 (gage height, 1.01 ft).

1927-51: Maximum discharge, 35,000 cfs Dec. 10, 1933 (gage height, 15.8 ft, from 

floodmaxks), from rating curve extended above 6,300 cfs; minimum, that of Aug. 24, 1951.

Remarks. Records excellent except those for periods of no gage-height record, which are 

fair. No diversion or regulation.

Revisions (water years). W 792: 1934. W 832: 1935-36.

Rating table, water year 1950-51 (gage height, in feet.

and disc 

20

40

66

120

190

286

:harge, in 

2.6

3.0

3.5

4.0

4.5

5.0

410

650

1,060

1,600

2,240

2,920

5.5

6.0

7.0

8.0

9.0

10.4

) 

3,630

4,380

6,020

7,910

10,000

13,300

Discharge, In cubic feet per second, water year October 1950 to Septembe*" 1951

Day

1 

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Vfam

In.

Ac-ft

Oct.

112

100

96

106

265

490

824

864

650

1,720

2,370

1,360

808

587

466

396 

353

386

496

568

484

425

383

349

388

526

926

2,110

2.50C 

2.04C

1,780

24,930

804

3.67

4.23

49,450

Nov.

2,180 

2,300

1,920

1,550

1,320

*1,170

1,020

880

768

692

629

580

550

520

760

1,780 

2,110

1,980

1,720

1,720

2,180

3,060

3,930

4,530

4.680

4,680

4,080

3,200

2,570 

2)500

-

61,559

2,052

9.37

10.45

122,100

Dec.

2,990 

2,920

2,500

2,370

2,440

2,990

3,630

 3,200

2,990

2,850

2,370

1,920

1,600

1.590

1,600

2,240 

3,130

2,990

2,370

2,180

2., 500

3,060

5,160

6.020

4,840

3,200

2,570

2,570

2,440 

2,370

2,570

87,970

2,838

13.0

'14.94

174,500

Jan.

2,370 

3,780

5,160

5,160

3,930

2,850

2,180

1,720

1,460

1,330

1,240

1.140

1,530

2,180

3,560

4,840 

*5.500

5,330

3,780

2,780

3,200

4,080

3,780

3,060

2,920

3,200

2,990

2,240

1,780 

1,440

1,250

91,760

2,960

13.5

15.58

182,000

Feb.

1,120 

1,480

2,240

2,570

2,240

1,920

3,700

4,530

8,900

12,300

15.500

7,510

5,000

3,130

2,370

1,920 

1,600

1,540

1,780

2,780

2,780

2,110

1,660

1,410

1,290

1,180

1,050

143.

-

94,553

3,370

15.4

16.02

187,100

Mar.

872 

808

832

988

1,200

1,080

961

889

824

784

752

1,520

3,410

3,560

3,560

4.580 

3,780

2,570

1,980

1,720

1,660

1,720

1,660

1,410

1,270

1,180

1,100

988

943

1,250

1,500

51,151

1,650

7.53

8.69

101,500

Apr.

1.270 

1,100

979

872

800

728

678

622

580

550

514

484

460

435

415

396 

374

365

357

344

324

305

294

282

276

272

350

587

556 

401

-

15,940

531

2.42

2.71

31,620

May

313

294

286

305

332

301

294

272

258

254

262

265

254

241

229 

216

210

202

193

187

180

182

213

241

238

»210

187

182 

177

167

7,485

241

1.10

1.27

14,850

June

iff

148

143

146

150

152

152

141

135

128

128

126

128

124

118 

112

102

98

95

93

89

85

80

80

76

78

78

74 

IS.

3,440

115

0.525

0.58

6,820

July

71 

T>

63

63

63

13,

72

63

6363

6T

59

57

»5S

55

55

53

51

43

47

45

44

V.

43

43

41

43

41 

4T

4T

1.69T

54.5

0.24<J

0.23

3,350

Aug.

39 

38

38

38

38

37

36

35

34

34

34

36

37

37

37

36 

33

31

30

 28

26

24

23

22

22

22

22

23

24 

24

33

971

31.3

0.143

0.16

1,930

Sept.

33 

31

30

29

28

28

37

44

42

58

52

42

39

35

33

32 

31

30

30

30

30

29

29

30

 41

40

48

102

363 

907

-

2,333

77.8

0.355

0.40

4,630

Calendar year 1950: Max 7,510 Mln 50 Mean 1,358 Cfsm 6.20 In. 84.15 Ac-ft 983,000

Water year 1950-51: Max 13,300 Mln 22 Mean 1,215 Cfsm 5.55 In. 75.32 Ac-ft 879,800

Peak discharge (base. 4.000 cfs). Nov. 25 (1:30 D.m.) 5.000 cfs (6.4O ft): Dec. 24 (4 D.m.) 6.200

cfs (7.12 ft); Jan. 4 (3:30 a.m.) 5,500 cfs (6.70 ft); Jan. 18 (3 a.m.) 5,670 cfs (6.78 ft); Jan. 22

(7 p.m.) 4,230 cfs (5.94 ft); Feb. 11 (time unknown) 14,800 cfs (11.0 ft); Mar. 16 (5 p.m.) 4,680 cfs

(6.15 ft).

* Discharge measurement made on this day.

Note. No gage-height record June 23 to July 13; discharge estimated on basis of records for

stations on nearby streams.
CHEHALIS RIVER BASIN 19

Chehalis River near Doty, Wash.

Location. Lat 46°37'00", long. 123°16'40", in NVl£ sec. 14, T. 13 N. ( R. 5 W., on right 

bank it miles upstream from Elk Creek, li miles south of Doty, and 3j miles north of 

Pe Ell.

Drainage area. 113 sq mi.

Records available. October 1939 to September 1951.

Gage. Staff gage and crest-stage indicator; gage read twice daily. Datum of gage is 

302.1 ft above mean sea level (river-profile survey).

Average discharge. 12 years, 544 cfs.

Extremes. Maximum discharge during year, 15,700 cfs Feb. 9 (gage height, 15.93 ft); mini- 

 mum observed, 19 cfs Aug. 25-27, Sept. 21, 32 (gage height, 0.84 ft).

1939-51: Maximum discharge, 18,100 cfs Feb. 7, 1945 (gage height, 17.80 ft, water

over gage; discharge based on observer's estimate of maximum gage height); minimum

observed, that of Aug. 25-27, Sept. 21, 22, 1951.

Remarks. Records good. No diversion or regulation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

13

28

52

110

201

325

2.5 

3.0 

4.0 

5.0 

6.0 

7.0

560

810

1,400

2,100

2,850

3,700

8.0

9.0

10.0

11.0

12.0

14.0

4,700

5,800

7,000

8,300

9,650

12,600

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

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.

Ac-ft

Oct.

55

52

55

66

177

415

415

392

415

1,540

1,040

535

370 

280

234

201

184

*485

710

585

392

325

280

259

302

710

1,750

2.170

1,610

1,280

1,340

18,624

601

5.32

6.13

36,940

Nov.

1,340

1,340

980

760

635

535

438

415

392

348

325

302

2£7 

267

510

1,340

1,400

1,160

920

2,030

3,250

5.340

2,240

2,380

2,310

2,100

1,750

1,400

1,160

1,400

-

37,034

1,324

10.9

12.19

73,460

Dec.

*1,680

1,340

1,470

1,960

1,750

2,310

2,170

2,100

1,540

1,160

1,040

860

710 

660

860

,220

,680

,400

,100

,160

,540

,530

.200

,770

,540

,160

,040

,280

,280

,540

,400

48,450

1,563

13.8

15.95

96,100

Jan.

1,340

2,450

3,170

2,030

1,470

1,100

920

760

660

660

660

635

525 

1,340

j_.4_30

2,850

2,850

1,820

1,340

1,100

2,240

1,400

1,540

1,610

2,450

2,690

1,540

1,100

860

710

*635

47,895

1,545

13.7

15.76

95,000

Feb.

1,750

1,820

1,750

1,540

1,220

1,220

2,530

4,400

12.600

6,760

4,700

2,690

1,680 

1,280

1,040

810

760

760

710

1,160

1,040

860

760

660

610

535

*485

460

.

-

-

56,590

2,021

17.9

18.62

112,200

Mar.

438

392

370

460

415

392

370

348

325

302

302

610

1,100 

1,160

2.100

1,680

1,160

920

810

810

920

980

810

760

760

760

760

710

760

1,160

1,160

24,004

774

6.85

7.90

47,610

Apr.

980

860

860

860

760

*660

635

560

510

460

438

460

460 

415

370

348

325

302

276

255

231

216

208

201

194

187

710

635

370

302

-

14,048

468

4.14

4.62

27,860

May

263

246

223

259

267

251

234

212

198

194

216

187

187 

177

167

155

*148

142

136

131

123

120

126

133

128

128

123

118

110

106

101

5,309

171

1.51

1.75

10,530

June

97

92

88

92

92

90

86

82

8

4

4

4

4 

70

65

62

62

58

55

52

52

50

47

46

46

44

43

*43

43

40

1,971

65.7

0.581

0.65

3,910

July

40

40

40

40

43

i£

46

43

40

38

35

32

32 

32

34

34

32

31

31

31

30

29

29

28

29

29

29

28

27

27

26

1,051

33.9

0.300

0.35

2,080

Aug.

25

25

25

25

25

25

25

25

*25

25

25

25

25 

25

25

25

24

23

22

22

22

20

20

19.5

li

19

19

21

26

25

25

732.5

23.6

0.209

0.24

1,450

Sept.

25

23

22

21

20

20

31

63

40

29

25

22

22 

24

24

22

22

22

20

20

19

19

19.5

21

29

47

34

43

152

810

-

1,710.5

57.0

0.504

0.56

3,390

Calendar year 1950: Max 6,520 Mln 37 Mean 783 Cfsm 6.93 In. 94.09 Ac-ft 567,000

Water year 1950-51: Max 12,600 Mln 19 Mean 705 Cfsm 6.24 In. 84.72 Ac-ft 510,500

* Discharge measurement made on this day.
20 CHEHALIS RIVER BASIN

Newaukum River near Chehalis, Wash.

Location. Lat 46°36'10", long. 122°56'45", on line between sees. 9 and 1C, T. 13 N., 

HT2W., on left bank 2.2 miles southeast of Chehalis and 3.4 miles upstream from 

mouth.

Drainage area. 159 sq mi.

Records available.--March 1929 to September 1931, July 1942 to September 1951.

Gage Staff gage and crest-stage Indicator; gage read twice daily. Altitude of gage Is 

195 ft (from topographic map).

Average discharge.--11 years, 482 efs.

Extremes.--Maximum discharge during year, 5,240 efs Feb. 9 (gage height, 11.58 ft), from 

rating curve extended above 3,800 cfs by logarithmic plotting; minimum observed, 14 cfs 

Aug. 22 (gage height, 0.80 ft).

1929-31, 1942-51: Maximum discharge observed, 6,440 cfs Feb. 17, 1919 (gage height, 

13.06 ft), from rating curve extended above 3,800 cfs by logarithmic plotting; minimum 

observed, 12 cfs Sept. 13, 14, 1949.

Remarks.--Records good except those for period of shifting control, which are fair. Cities 

or Chehalis and Centralia divert about 15 cfs for municipal use. No regulation.

Revisions (water years).--W 1012: 1943. W 1152: 1949(M).

Rating tables, water year 1950-51, except period of shifting control (gage height, 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 30

1.4

1.7

2.0

2.5

3.0

4.0

5.0

Note. 

following table 

above 5.0 ft.

76 

133 

248 

388 

732 

1,130 

 Sane as

0.8 

1.0 

1.3 

1.6 

2.0 

3.5 

3.0

14

37

54

92

160

270

405

4.0 

5.0 

6.0 

7.0 

8.0 

9.0 

10.3

740

1,130

1,630

2,130

2,730

3,360

4,300

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

Z

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

30

21

32

23

24

25

26

27

28

29 

30

31

'Total

Mean

 AC-ft

Oct.

45

46

127

311

154

144

176

732

656

339

333

199

311

152

137

211

 344

339

348

211

176

154

154

315

548

1,230

1.380 

970

1,010

10,809

349

31,440

Nov.

970 

1,090

970 

770

733

619

619

583

418

373

329

315

'S5a~ 288

890

3,790

5.090

1,980

1,130

1,380

1,930

2,490

3,910

3,850

3,550

1,730

2,550

1,780

*1,330 

1,880

-

41,634

1,387

82,560

Dec.

1,980 

1,430

1,580 

3,030

1,630

3,130

3,370

1,880

1,480

1,180

1,010

890

770

970

1,050

970

850

770

1,050

1,230

5.780

2,510

1,730

1,330

1,050

1,090

1,050 

1,180

1,090

43,837

1,382

84,970

Jan.

1,090 

3,850

2.970 

3,350

1,630

1,280

1,010

850

732

694

656

*656

810

1,090

1,980

2,130

3,610

1,730

1,330

1,330

3,850

3,310

1,680

1,730

1,930

1,730

1,330

970

770 

656

583

46,117

1,488

91,470

Feb.

583 

970

1,380 

1,380

970

930

1,330

1,980

4.300

 5,930

4,300

3,910

1,880

1,380

1,180

1,010

890

1,090

1,050

1,280

1,130

1,330

775

670

635

 565

495

465

-

-

40,378

1,438

79.890

Mar.

435 

405

176 

600

565

495

530

465

435

405

495

1,430

2,370

2,030

2.43-0

3,310

1,480

1,090

970

930

930

850

740

705

705

670

635

565

635 

775

850

38,306

913

56,140

Apr.

m600 

565

*530

465

465

435

405

363

334

321

331

321

295

383

258

246

346

333

201

190

180

170

170

160

190

246

234

i201

9,991

333

19.820

May

180 

160

160

170

376

346

358

334

313

190

313

321

382

212

190

170

*160

150

141

133

123

115

133

141

170

133

141

133

141

133

107

5,604

181

11,130

June

95 

93

89 

96

115

107

104

95

89

84

78

81

83

77

73

70

68

63

66

65

63

56

56

54

52

53

51

 49

46 

43

-

3,309

73.6

4,380

July

41 

40

39 

42

50

54

54

50

46

44

40

37

33

33

33

33

33

32

32

32

33

33

32

31

30

39

39

28

27 

36

35

1,119

36.1

2,330

Aug.

24 

34

23 

33

32

31

31

31

 31

21

31

34

36

34

30

19

19

19

17.5

16.5

15

M

15

16

16.5

16.5

17.5

*30

If30

669.5

21.6

1,330

Sept.

37 

36

34 

34

24

24

36

40

44

33

27

24

33

21

31

21

21

31

31

31

31

31

31

33

39

115

50

44

107 

246

-

1,300

40.0

3.380

Calendar year 1950 ( Max 4,920 Mln 35 Mean 736 Ac-ft 535,400

Hater year 1950-51 : Max 4,200 Mln 14 Mean 632 Ac-ft 457,700

* Discharge measurement made on this day.

Note. Shifting-control method used Feb. 13 to Mar. 12.
CHEHALIS RIVER BASIN 21

Skookumchuck River near Centralia, Wash.

Location. Lat 46°47'15", long. 122°42'45", in SW^NW^ sec. 17, T. 15 N., R. 1 E., on left 

bank half a mile upstream from Bloody Run Creek, 4£ miles upstream from Thompson Creek, 

and 12 miles northeast of Centralia.

Drainage area. 59.9 sq mi (revised).

Records available.--April 1929 to September 1931, October 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 300.00 ft above mean sea level (riverprofile survey). Apr. 1, 1929, to Sept. 30, 1931, staff gage at site 0.4 mile downstream at different datum. Oct. 9 to Nov. 29, 1939, staff gage at present site and 

datum.

Average discharge. 14 years, 227 cfs.

Extremes. Maximum discharge during year, 3,980 cfs Feb. 9 (gage height, 46.06 ft); minimu¥7l8.5 cfs Aug. 22, 23, Sept. 20-24 (gage height, 39.23 ft).

1929-31, 1939-51: Maximum discharge, 5,770 cfs Feb. 17, 1949 (gage height, 48.39 

ft); minimum, 18 cfs Oct. 27-30, 1944.

Remarks. Records excellent. No diversion or regulation. 

Revisions (water years).--W 722: 1929-30.

Rating table, water year 1950-51 (gage height, In feet, and 

discharge, In cubic feet per second)

39.2 16.5

39.5 41

39.7 65

39.9 95

40.1

40.3

40.5

40.8

133

179

233

329

41.1

41.5

42.0

42.5

447

635

910

1,210

43.0 1,510

43.5 1,850

44.0 2,200

45.0 2,980

Discharge, In cubic feet per second, water year October 1950 to September 19*1.

Day

1

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

26

29

30

31

TOtal

Mean

Cfsm

In.

Ae-ft

Oct.

34

32

31

34

119

127

95

113

106 

517

322

187

140

133

115

»99

92

135

202

206

169

137

117 

104

123

179

536

715" 910

519

465

6,832

220

3.67

4.24

13,550

Nov.

519

561

439

355

326

279

251

225

197 

162

169

157

146

140

334

1,120

850

585

366

571

1,390

1.600

1,270 

1,510

1,150

650

1,270

650

571

635

-

18,668

630

10.5

11.73

37,460

Dec.

*665

519

575

1,000

622

1,000

1,090

850

630 

462

443

393

344

315

335

416

462

430

376

393

547

769

1.450 

910

635

467

413

469

430

447

393

18,532

596

9.96

11.51

36,760

Jan.

366

1,200

1.300

850

595

465

378

333

295 

273

276

263

345

460

*1,120

1,000

1,060

660

462

405

1,160

650

590 

795

1,030

1,060

712

514

405

336

296

19,691

642

10.7

12.35

39,450

Feb.

262

5S5

795

635

500

426

585

970

2.750 

2,200

»2,500

1,510

660

610

519

416

366

374

359

443

397

340

296 

273

246

*225

206

195

-

.

-

19,961

713

11.9

12.39

39,590

Mar.

164

174

169

179

169

162

153

146

142

133

133

622

622

551

1.060

850

514

362

329

333

370

355

315 

292

269

292

265

266

309

382

366

10,730

346

5.78

6.66

21,260

Apr.

329

305

319

140

155

279

266

246

*225 

205

195

206

227

216

195

187

182

169

155

140

129

119

113 

109

106

106

117

164

160

133

5,975

199

3.32

3.71

11,850

May

115

109

102

133

157

140

146

129

115 

115

151

140" 165

125

113

106

106

97

*92

89

65

34

90 

92

106

64

61

61

79

73

11

3,373

109

1.62

2.09

6,690

June

66

15

64

64

65

65

62

60

57 

55

52

55

53

52

49

46

45

44

43

41

41

40

40 

39

36

37

37

35

34

13

1,481

49.4

0.625

0.92

2,940

July

33

*33

33

34

34

33

33

31

30 

29

26

27

27

27

27

27

26

25

25

25

25

24

23 

23

24

25

23

23

21

22

22

646

27.4

0.457

0.53

1,660

Aug.

22

23

23

22

22

22

22

22

22 

*22

23

24

23

22

22

21

20

20

20

19

19

18.5

19 

19

19

19

20

46

31

23

22

691.5

22.3

0.372

0.43

1.370

Sept.

22

21

21

20

20

19

23

44

26 

22

21

21

20

20

19

19

19

19

19

18.5

16.5

18.5

16.5 

16.5

41

33

24

36

50

174

867.5

28.9

0.462

0.54

1,720

Calendar year 1950: Max 2,970 Mln 24 Mean 375 Cfsm 6.26 In. 64.60 Ac-ft 271,200

Water year 1950-51: Max 2,750 Mln 18.5 Mean 296 Cfsm 4.94 In. 67.10 Ac-ft 214,300

Peak discharge (base. 2.000 cfsi. Feb. 9 (5:30 p.m.) 3,980 cfs (46.06 ft). 

* Discharge measurement made on this day.
22 CHEHALIS RIVER BASIN

Chehalis River near Grand Mound, Wash.

Location. Lat 46°46'35", long. 123°02'05", In NE£ sec. 22. T. 15 N., R. 3 W., on left 

bank at downstream side of highway bridge at Meadows, 1-J miles southwest of Grand Mound 

and 6 miles downstream from Skookumchuok River.

Drainage area. 895 sq mi (revised).

Records available. October 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage Is 123.27 ft above mean sea level, datum of 

1929. Prior to Oct. 3, 1934, staff gage attached to bridge piling at right bridge 

abutment at datum 3.0 ft higher.

Average discharge. 23 years, 2,693 cfs.

Extremes. Maximum discharge during year, 38,000 cfs Feb. 10 (gage height, 16.96 ft); mlnImum, 90 cfs Aug. 23-26 (gage height, 1.20 ft).

1928-51: Maximum discharge, 48,400 cfs Dec. 29, 1937 (gage height, 18.39 ft); minimum, that of Aug. 23-26, 1951.

Remarks. Records good except those for period of shifting control, which are fair.

cities of Cpntralia and Chehalis divert about 15 cfs from Newaukum Rivsr, a tributary, 

for municipal use. No regulation.

Revisions. W 932: Drainage area.

Rating tables, water year 1950-51, except period of shifting control (gage height, In 

feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 30

212 

306 

 414 

605 

822 

1,060

Note. Same as following 

table above 6.0 ft.

3.6 

4.0 

4.5 

5.0 

6.0

1,420

1,820

2,370

3,920

4,200

1.2

1.4

1.6

1.8

2.0

2.3

2.6

90

148

215

293

380

530

710

2.9

3.2

3.6

4.0

4.5

5.0

6.0

900

1,120

1,450

1,820

2,340

2,910

4,200

7.0

8.0

10.0

12.0

14.0

16.3

5,700

7,400

11,200

15,600

21,600

33,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18 

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

257

248

234

239

316

877

1,090

1,150

1,200

1,810

4,920

2,480

1,470

1,150

997

*853 

747

784 

1,820

2,540

1,980

1,520

1,200 

1,020

908

1,380

2,340

7,440

9.050

7,040

6,360

65,420

2,110

2.36

2.72

129,800

Nov.

5,860

6,700

5,540

4,340

3,660

3,160

2,700

2,420

2,100

1,820

1,670

1,570

1,420

1.330

1,680

7,180 

11,200

11,400 

8,480

7,400

11,600

14,400

16.200 

14,900

14,200

13,300

11,400

10,000

7,580

*7,400

"

212,610

7,087

7.92

8.83

421,700

Dec.

11,400

10,800

8,860

9,810

10, 800

10,400

11,800

11 , 600

9,810

7,940

6,360

5,380

4,340

3.660

3,660

5,070 

6,530

7,040 

6,020

5,380

7,580

8,480

14,400 

17.200

14,400

10,200

7,580

6,700

6,870

6,870

7,940

264,880

8,545

9.55

11.01

525,400

Jan.

7,220

7,940

15,400

15,900

12,900

9,430

7,040

5,540

4,480

3,920

3,660

*3.530

3,530

5,700

9,910

14,900 

16,600

17.200 

13,500

10,000

13,500

15,900

14,400 

11,600

11,600

12,000

9,430

7,000

5,500

4,480

3,800

297,510

9,597

10.7

12.36

590,100

Feb.

3,280

3,660

7,400

7,400

7,400

5,860

6,700

11,400

15,200

33.100

*3 1,800

26,200

18,400

13,300

9,050

7,040 

5,380

5,070 

4,770

5,380

*6,190

5,380

4,480 

3,920

3,660

3,270

2,850

2.560

-

-

"

260,100

9,289

10.4

10.61

515,900

Mar.

2,500

2,230

2.070

2,450

3,270

2,850

2,670

2,500

2,450

2,230

2,120

4,340

11,800

11,400

11,200

14.600 

11,800

8,300 

6,190

5,220

4,920

5,070

4,620 

3,920

3,660

3,530

3,400

3,150

3,030

3,920

5,070

156,480

5,048

5.64

6.50

310,400

Apr.

4.460

3,920

3,530

3,400

3,150

 2,790

2,500

2,340

2,070

1,920

1,770

1,680

1,680

1,630

1,500

1,400 

1,320

1,240 

1,200

1,120

1,030

970

928 

893

858

830

837

1,280

1,540

1,200

~

55,006

1,834

2.05

2.29

109,100

May

1,030

949

893

907

1.360

1,160

1,160

1,080

956

886

900

1,080

1,010

956

879

812 

758

 734 

698

662

632

596

584 

620

650

656

584

560

566

554

515

25,387

819

0.915

1.05

50,350

June

490

470

455

455

470

490

495

470

440

415

390

380

390

390

371

348

327

314 

301

297

289

281

261 

257

253

249

238

234

*230

219

-

10,669

356

0.397

0.44

21,160

Julv

212

204

212

215

223

242

257

253

226

215

208

194

184

174

170

170 

167

167 

164

161

154

151

148 

148

145

145

148

148

148

142

139

5,634

182

0.203

0.23

11,170

Aug.

136

133

133

133

133

133

127

124

124

*124

127

136

139

142

133

124 

118

112 

107

101

98

96

90 

90

90

93

98

115

154

180

158

3,801

123

0.137

0.16

7,540

Sept.

145

133

124

118

115

110

115

133

301

208

167

145

130

121

118

115 

110

107 

107

104

107

101

98 

101

121

174

253

219

253

602

~

4,655

155

0.173

0.19

9,230

Calendar year 1950s Max 26,000 Mln 141 Mean 4,246 Cfsm 4.74 In. 64. 4C Ac-ft 3,074,000

Water year 1950-51: Max 33,100 Mln 90 Mean 3,732 Cfsm 4.17 In. 56. 5f Ac-ft 2,702,000

Peak discharge (base. 13.00 cfs). Nov. 23 (1 to 2 p.m.) 16,600 cfs (12.35 ft); Dec. 24 (5 a.m.) 

17,800 cfsTT2.77 f ,. . (8:30 , ... to . 11 . _p.m.) ,....., 16,600 _.,...._.... cfs (12.38 ft); , . Jan. . 17 (9 to 10 p.m.) 17,500

cfs (12.71 ft); Feb. 10 (5 p.m.) 38,000 cfs (16.96 ft); Mar. 16 (10:30 a.m.) 15.2CO cfs (11.77 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Oct. 1-10, Nov. 24 to Dec. 23
CHEHALIS RIVER BASIN 23

Rock Creek at Cedarville, Wash.

Location. Lat 46°52'05", long. 123°18'25", In SWfeWfc sec. IS, T. 16 N., R. 5 W., on left 

bank 0.2 mile downstream from Williams Creek, 1 mile west of Cedarville, and It miles 

upstream from mouth.

Drainage area. 24.8 sq mi.

Records available. July 1942 to October 1943 (fragmentary), June 1944 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 70 ft (from topographic map). Prior to 

Aug. 17, 1944, staff gage at railroad bridge three-quarters of a mile downstream at different datum.

Average discharge. 7 years (1944-51), 86.2 cfs.

Extremes.--Maximum discharge during year, 1,660 cfs Feb. 9 (gage height, 13.77 ft), from 

rating curve extended above 800 cfs; minimum, 0.4 cfs Aug. 21, 22, 23 (gage height, 

2.09 ft).

1942-51: Maximum discharge, that of Feb. 9, 1951; minimum, 0.3 cfs Sept. 25, 1946.

Remarks. Records good except those for periods of shifting control, which are fair. No 

regulation, but some diversion for irrigation.

Revisions (water years). W 982: 1942. W 1092: 1945(M), 1946(M).

Rating table, water year 1950-51, except periods of shifting control (gag's 

height. In feet, and discharge, In cubic feet per second)

2.0

2.2

2.4

2.7 

3.0 

3.3

0.2

1.3

3.9

11.5

25

3.6 

4.0 

4.5 

5.0 

5.5 

6.0

76

124

188

253

319

389

7.0

8.0

9.O

10.0

11.0

12.2

532

682

840

1,000

1,170

1,370

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

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.

Ac-ft

Oct.

3.3

£.!

3.1

6.8

18.5

21

29

24

20

161

78

38

26

19.5

16

13

12.5

19

30

28

24

22

19.5

18.5

20

28

88

188

182

141

157

1,457.5

47.0

1.9O

2.19

2,890

Nov.

22O

2O1

158

128

1O7

90

80

67

58

52

48

46

41

40.

56

130

168

188

152

182

208

361

389

lil

389

361

266

214

175

 214

-

5,206

174

7.02

7.81

1O.33O

Dec.

286

240

214

227

240

375

312

253

220

182

161

136

118

105

129

201

279

227

188

194

214

347

712.

473

292

22O

188

208

201

227

234

7,603

245

9.88

11.40

15,080

Jan.

201

375

577

431

305

227

182

149

124

110

99

SI

113

168

431

502

279

234

459

473

326

26O

253

292

234

182

152

 126

1O7

8,499

274

11.0

12.75

16,860

Feb.

95

139

188

234

194

175

266

340

1.370

984

728

487

305

227

188

153

134

122

122

2 2O

 194

159

137

122

110

98

87

80.

-

-

7,658

274

11.0

11.48

15,19O

Mar.

76

7O

9~0~ 69

100

92

87

82

77

72

70

271

445

326

532

473

292

220

188

168

162

161

141

124

112

99

88

77

74

124

131

5,093

164

6.61

7.64

10,100

Apr.

122

106

94

82

72

 64

58

54

50

46

43

40

38

36

34

32

29

28

28

26

24

23

22

21

20.

20

23

37

27

22

-

1,319

44.0

1.77

1.98

2,62O

May

20

19

18

20

23

19.5

19

17

15.5

14.5

17

17.5

16.5

15

14.5

13

13

13

 12.5

12

11

11

12.5

13.5

14.5

12

11

11

10.5

9.6

978

456.1

14.7

0.593

O.68

905

June

8.9

8.9

9.8

10.5

12

13

li.5.

11.5

9.8

8.9

8.1

1O

11

10.5

10.5

9.8

1O.5

9.2

9.2

7.8

6.8

5.4

5.2

5.4

4.7

4.3

4.1

3.3

*2.2

~r246.3

8.21

0.331

0.37

489

July

1.2

1.4

1.6

2.2

2.5

5.4

BTff

2.9

2.5

2.0

1.7

1.2

1.2

1.2

1.2

1.3

1.2

1.1

1.1

iu2

l.O

1.0

1.0

1.0

1.2

1.3

1.3

1.2

1.2

1.2

1.2

51.5

1.66

O.067

O.O8

102

Aug.

1.1

l.-l

1.2

1.2

1.2

1.2

1.1

1.1

1.2

*1.4

1*5

1.4

1.2

1.2

1.0

.9

.7

.7

.6

.6

.5

.5

tt

.5

.6

.6

.9

1.0

1.2

1.1

29.4

0.95

O.O38

O.O4

58

Sept.

1.1

1.1

1.0

1.0

.7

.7

1.0

2.6

2.5

1.8

1.4

1.2

l.O

1.0

.9

.8

*.9

.8

.8

.8

.7

-|

* b

.7

1.2

2.1

1.9

9.5

14

ii"

98.4

3.28

0.132

0.15

195

Calendar year 1950: Max 883 Mln 1.1 Mean ill Cfsm 4.48 In. 6O.81 Ac-ft 80,420

Water ater year year 1950-51: 1950-51: Max Max 1,37O 1,37O Mln Mln O.4 O.4 Mean Mean 1O3 1O3 Cfsm Cfsm 4.15 4.15 In. In. 56.57 56.57 Ac-ft Ac- 74,820

Peak discharge (base. 800 efs). Feb. 9 (time unknown) 1,660 cfs (13.77 ft).

* Discharge measursment made on this day.

Note. Shifting-control method used Oct. 1 to Dec. 5, Feb. 1O to Mar. 25, Apr. 1O to Sept. 29.

288995 O - 54 - 3
CHEHALIS RIVER BASIN

Cloquallum River at Elma, Wash.

Location.--La t 47e 00'20", long. 123°23'10", In S*NW£ sec. 36, T. 18 N., R, 6 w., on right 

bank: 200 ft upstream from highway bridge, half a mile east of Elma, and 1.8 miles downstream from Wildcat Creek.

Drainage area. 65.8 sq mi (revised).

Records available. July 1942 to October 1943 (fragmentary), July 1944 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 20 ft (from topographic map). Prior to 

Aug. 7, 1944, staff gage at site 550 ft downstream at different datura.

Average discharge. 7 years (1944-51), 259 cfs.

Extremes.--Maximum discharge during year, 4,470 cfs Feb. 9 (gage height, 11.04 ft); minimum, 13.5 cfs Sept. 13 (gage height, 1.86 ft).

1942-51: Maximum discharge, that of Feb. 9, 1951; minimum, 6.8 cfs Sept. 15, 1945 

(gage height, 1.43 ft).

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for period of no gage-height record, which are poor. Several small diversions on 

minor tributaries above station and some regulation by log pond on Wildcat Creek.

Rating table, water year 195O-51, except periods of shifting control (gage 

height. In feet, and discharge. In cubic feet per second)

1.8 

2.0 

2.2 

2.4 

2.7 

3.0

14

38

70

107

168

240

3.3 

3.6 

4.0 

4.5 

5.0 

5.5

320

410

535

710

910

1,110

6.0 

7.O 

8.0 

9.0 

1O.O

1,33O 

1,810 

2,360 

2,970 

3,670

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

a28

a26

ap

a5o

alOO

a!40

*198

147

119

876

410

242

182

153

135

123

117 

137

225

184

162

147

137 

131

135

164

248

485

485

410

470

6,591

213

3.24

3.73

13,070

Nov.

622

518

485

395

353

293

26O

230

205

191

182

180

168

166

H?

344

*329 

311

278

38O

692

1,010

9O8 

1,280

1.590

1,380

1,010

750

552

710

-

15,794

526

7.99

8.93

31,330

Dec.

790

640

622

6O5

518

81O

81O

675

692

675

570

485

425

580

455

552

81O 

658

552

552

588

877

1.76O 

1,560

1,150

79O

658

640

*535

*535

440

21,809

704

10.7

12.33

43,260

Jan.

395

1,020

1,280

990

750

588

500

455

410

395

395

371

485

552

1,150

1,280

1.560 

1,070

87O

750

1,380

1,200

930 

850

890

1,110

810

640

518

470

425

24,489

790

12.0

13.84

48,570

Peb.

410

675

750

710

588

535

830

1,240

3.570

3,390

2,480

 1,660

1,150

87O

750

605

552 

5OO

500

710

570

485

425 

395

395

344

299

272

-

-

-

25,660

916

13.9

14.50

50,900

Mar.

26O

240

240

299

285

248

240

230

222

215

210

635

950

770

1.260

1,110

750 

605

518

485

518

518

 440 

380

362

329

288

262

285

268

326

13,748

443

6.73

7.77

27,270

Apr.

288

260

240

222

208

198

186

175

168

162

155

153

147

145

139

135

131 

129

127

123

119

117

113 

111

109

107

123

160

125

113

-

4,688

156

2.37

2.65

9,300

May

109

105

103

119

127

115

*121

107

103

101

107

101

98

94

92

88

86 

81

81

79

77

74

79 

81

83

74

70

72

75

72

68

2,842

91.7

1.39

1.61

5,640

June

67

65

65

65

67

67

63

6O

56

55

53

55

56

55

50

48

47 

46

44

*44

46

44

42 

41

41

40

41

40

38

11

1,538

51.3

0.780

0.87

3,050

July

37

38

38

40

41

47

IT

41

38

37

29

2*

24

24

25

28

26 

26

26

26

26

28

29 

29

28

28

*26

26

26

26

25

956

30.8

O.4S8

0.54

1,9(30

Aug.

24

21

25

24

24

22

21

23

28

29

29

29

25

23

22

23

22 

21

19.5

19.5

19.5

19.5

*H19.5

19.5

22

31

*23

725. 0

23.4

0.356

0.41

1,440

Sept.

23

23

22

21

18.5

18.5

29

32

21

17.5

16

16

15

15

15

15

»

19.5

18.5

16

17.5

17.5 

19.5

33

23

23

62

74

151

807.0

26.9

0.409

0.46

1,600

Calendar year 195O: Max 2,O2O Mln 24 Mean 334 Cfsm 5.O8 In. 68.79 Ac-ft 241,900

Water year 1950-51: Max 3,57O Mln 14 Mean 328 Cfsm 4.98 In. 67.64 Ac-ft 237,300

Peak discharge (base. 1.500 cfs).--

cfs (7. SB ft); Jan. 2 (9:3O p.m.) 1,E 

(1:30 p.m.) 1,510 cfs (6.44 ft); Peb

Nov. 25 (10 p.m.) 1,810 cfs (6.84 ft); Dec. 2,7 (5 p.m.) 2,130 

6O cfs (6.63 ft)j Jan. 17 (2 a.m.) 1,760 cfB (6.88 ft); Jan. 21 

9 (7:30 p.m.) 4,470 cfs (11. O4 ft); Mar. 15 (5:30 p.m.) 1,560

cfs (6.51 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

stations on nearby streams.

Note. Shifting-control method used Oct. 11 to Nov. 28, Dec. 26 to Jan. 2, May 12 to Sept. 30.
CHEHALIS RIVER BASIN 25

Chehalis River at South Elma, Wash.

Location. Lat 46"49'00", long. 123°24'40", in NE^NE^ sec. 10, T. 17 N., R. 6 W., on left 

 bank 200 ft upstream from highway bridge at South Elma, 1.1 miles downstream from Cloquallum River.

Drainage area. 1,420 sq mi, approximately.

Records available. July 1942 to December 1944 (fragmentary), October 1946 to September 

1951.

Gage. Water-stage recorder. Altitude of gage is 15 ft (from topographic map). Prior to 

Apr. 1, 1947, wire-weight gage at bridge 200 ft downstream at same datum.

Average discharge. 5 years (1946-51), 5,057 cfs.

Extremes. Maximum discharge during year, 38,400 cfs Feb. 11 (gage height, 76.93 ft); minImum, 204 cfs Aug. 22 (gage height, 55.75 ft).

1942-44, 1946-51: Maximum discharge, that of Feb. 11, 1951; minimum observed, 202 

cfs Sept. 12, 1944 (gage height, 55.43 ft).

Remarks. Records good except those for periods of shifting control or no gag-3-height recor37 which are fair. Cities of Centralia and Chehalis divert approximately 15 cfs from 

Newaukum River, a tributary, for municipal use. Many minor diversions from main stream 

and tributaries for domestic use and irrigation. No regulation.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

55.6

55.9

56.2

56.5

57.0

57.5

180

370

585

815

1,230

1,680

58.0

59.0

60.0

61.0

62.0

64.0

2,170

3,170

4,270

5,400

6,600

9,300

66.0

68.0

70.0

72.0

74.0

77.0

12,400

15,700

19,400

23,500

28,500

38,800

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

Ac-ft

Oct.

496 

461

454

489

658

*847

1,590

1,590

1,540

4,570

5,280 

4,490

2,870

2,170 

1,820

1,590

1,460 

1,460 

2,120

3,070

2,970

2,370

2,020

1,720

1,640

1,770

5,070

6,540

9.600 

9,500

8,180

87,985

2,858

2.00

2.30

174,500

Nov.

8,460 

8,320

8,180

6,860

5,880

5,160

4,490

4,050

6,610

3,170

2,970 

2,770

2,570

2.470 

2,570

4,560

9,450 

11,900 

11,800

9,600

*11,000

15,700

19,000

21,800

22,200

22.700

20,000

17,000

13,700 

11,900

-

295,840

9,795

6.90

7.70

582,800

Dec.

14,000 

15,500

14,500

13,500

14,300

16,400

17,000

17,100

16,600

15,000

11,900 

9,600

8,180

7,120 

6.860

8,040

10,800 

11,300 

10,400

9,600

10,600

*12,600

17,600

22,700

24.900

22,200

16,400

13,000

11,600 

11,100

11,000

421,400

13,590

9.57

11.04

855,800

Jan.

10,800 

11,400

16,800

20, 600

21,400

18,500

13,400

10,000

8,180

7,120

6,600 

6.240

6,240

7,640 

11,400

16, 800

22,200 

24.000 

25,500

19,400

17,500

20,000

22,000

21,200

19,200

20,600

18,600

15,400

11,500 

8,740

7,250

465,610

14,960

10.5

12.14

919,600

Feb.

6,560 

6,860

9,750

11,800

11,600

9,750

10,500

14, 600

25,700

333,800

57.600 

36,400

*53,8OO

29,400 

22,100

14, 700

11,000 

9,300 

8,740

9,450

9,900

9,160

7,900

6,990

6,480

6,000

5,520

5.040

_

-

408,200

14,580

10.5

10.69

809,700

Mar.

4,710 

4,490

4,270

4,580

5,160

5,160

4,820

4,600

4,490

4,270

4.050 

5,750

12,200

15,900 

17,100

18,600

19.400 

16,200 

11,800

9,450

8,460

*8,520

7,900

6,990

6,560

6,120

5,760

5,520

5,160 

5,880

6,600

249,850

8,060

5.68

6.54

495, 600

Apr.

6.750 

6,120

5,520

5,280

5,040

4,600

4,270

4,050

5,850

5,610

3,390 

3,170

3,070

2,970 

2,870

2,770

2,570 

2,470 

2,420

2,320

2,170

2,070

1,970

1,920

1,870

1.770

1,770

2,120

2,370 

2,320

-

97,620

3,254

2.29

2.56

195,600

May

2,020 

1,870

1,770

1,770

2,070

2.270

2,070

2,070

 1,920

1,770

1,720 

1,770

1,870

1,720 

1,640

1,590

1,500 

1,410 

1,560

1,520

1,280

1,230

1,190

1,190

1,280

1,280

1,190

1,140

1,100 

1,100

1.060

48,540

1,566

1.10

1.27

96,280

June

1.020 

984

943

927

945

975

975

943

911

863

831 

823

823

815 

791

745

712 

682 

668

645

*650

600

585

578

570

548

552

510

505 

4|9

22,562

752

0.550

0.59

44, 750

July

475 

468

461

475

475

510

503

496

496

475

447 

426

412

405 

384

570

565 

556 

549

542

555

555

528

514

514

514

307

*307

300 

294

282

12,118

391

0.275

0.32

24,040

Aug.

276 

276

276

276

270

270

270

264

264

270

270 

276

276

270 

270

258

246 

234 

228

222

216

216

216

216

210

210

216

246

270 

282

*321

7,881

254

0.179

0.21

15,630

Sept.

500 

288

276

258

240

234

264

500

294

521

335 

300

282

258 

246

240

254 

254 

254

228

222

222

222

228

282

500

555

555

562 

992

-

9,286

510

0.218

0.24

18,420

Calendar year 1950: Max 34,200 Mln 294 Mean 6,568 Cfsm 4.65 In. 62.80 Ac-ft 4,755,000

Water year 1950-51: Max 37,600 Mln 210 Mean 5,816 Cfsm 4.10 In. 55.60 Ac-ft 4,211,000

* Discharge measurement made on this day.

a. No gage-height record; discharge estimated on basis of records for stations on nearby streams.

Note. Shifting-control method used Oct. 1-10, May 11 to Sept. 50.
26 CHEHALIS RIVER BASIN 

Satsop River near Satsop, Wash.

Location. Lat 47°00'05", long. 123°29'40", in sec. 36, T. 18 N., R. 7 W., in west pier of 

bridge on U. S. Highway 410, 1 mile west of Satsop and ij miles upstream from mouth.

Drainage area. 290 sq mi, approximately (revised). 

Records available. March 1929 to September 1951.

Page. Water-stage recorder. Datum of gage is at mean sea level, datum of 1929. Prior to 

Mar. 19, 1938, staff gage at site 60 ft downstream at datum 20.9 ft higher.

Average discharge. 22 years, 1,927 cfs.

Extremes. Maximum discharge during year, 36,200 cfs Feb. 9 (elevation, 36.91 ft); minimum, 197 cfs Sept. 16-24.

1929-51: Maximum discharge, 52,500 cfs Jan. 22, 1935 (elevation, 38.9 ft, from 

floodmarks), from rating curve extended above 17,000 cfs; minimum discharge, 166 cfs 

Sept. 21, 1938.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No diversion or regulation.

Rating tables, water year 1950-51 (gage height. In feet, and discharge. In 

cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 30

24.0

24.2

24.4

24.7

25.0

25.5

26.0

27.0

305

440

600

880

1,190

1,780

2,560

4,440

28.0

29.0

30.0

31.0

32.0

33.0

34.0

35.1

6,650

9,150

11,600

14,600

17,600

21,100

24,600

28,800

24.3

24.6

25.0

25.5

26.0

26.5

27.0

28.0

197

340

620

1,080

1,650

2,300

3,030

4,830

29.0

30.0

31.0

32.0

33.0

34.0

35.0

36.0

7,030

9,560

12,500

15,800

19,500

23,500

27,600

32,000

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

50

51

 total

Mean

Cfsm

In.

Ac-ft

Oct.

370 

350

344

598

820

1,280

*2,390

3,090

2,150

a4,000

a5, 000

a2 , 200

1,660

1,410 

1,230

1,040 

al,000

1,410

1,780

2,000

1,920

1,560 

1,240

1,140

1,410

1,720 

2,480

4.040 

5,650

5)270

5,560

57,712

1,862

6.42

7.40

114,500

Nov.

3,740 

3,460

5,560

3,180

2,390

2,150

2,070

1,850

1,600

1,470

1,410

1,290

1,190

1.120 

1,200

2,230 

2,310

2,150

2,000

*2,480

3,840

7,900 

6,420

9,150

10,600

11.400 

9,150

6,900 

5,180

4,860

-

118,050

5,955

15.6

15.14

254,100

Dec.

4,760 

5,940

5,740

5,740

5,460

6,420

6,420

5,960

5,750

8,400

5,750

4,440

5,650

5. ISO 

5,740

5,070 

7,150

5,510

4,440

6,190

8,900

8,400 

10, 400

12.500

10,400

6,650 

6,190

*7,650 

6,190

5,730

4,650

189,350

6,107

21.1

24.23

375,500

Jan.

3,840 

5,510

8,150

5,960

4,650

3,840

3,270

2,820

2.560

2,560

2,820

2,820

4,860

6,190 

7,650

7,650 

7,650

5,960

4,960

4,340

5,960

5,960 

4,960

5,510

9,650

15.100 

7,150

5,070 

3,940

3,360

2,910

165,630

5,345

18.4

21.24

528,500

Feb.

2,640 

4,540

5,750

5,070

4,240

5,650

7,400

12,500

*28,700

52.000

19,100

*9,830

6,560

5,030 

4,240

3,600 

5,270

5,050

5,050

4,140

5,600

3,190 

2,800

2,580

2,440

2,230 

2,030

1.900

-

-

189,070

6,752

25.5

24.25

575,000

Mar.

1,770 

1,650

1,590

1,710

1,650

1,490

1,450

1,380

1,320

1,270

1.250

2,160

3,690

3,270 

4,430

5.140 

3,690

3,050

2,750

2,580

2,660

*2,860 

2,580

2,300

2,230

2,160 

2,030

1,900 

1,960

2,800

2,510

73 ,.220

2,562

8.14

9.59

145,200

Apr.

2.300 

2,100

2,100

2,100

1,900

1,700

1,650

1,550

1,420

1,320

1,270

1,280

1,300

1,220 

1,160

1,110 

1,080

1,050

1,020

940

880

844 

808

799

772

826"

1,900 

1,410

1,090

-

39,655

1,321

4.56

5.08

78,610

May

970 

890

835

862

980

862

855

808

*772

754

765

765

756

692 

668

644 

656

620

604

588

564

588

684

1.160

844 

736

684 

652

636

596

22,992

742

2.56

2.95

45,600

June

in540

555

526

519

505

491

477

465

456

456

456

449 

428

421 

414

400

400

*594

576

564 

558

552

546

340 

340

355 

525

520

-

12,896

430

1.48

1.65

25,580

July

315 

315

515

515

515

550

325

315

515

305

295

295

295

295 

290

285 

280

276

276

271

271

271 

266

266

266

261 

*261

261 

256

256

252

8,S10 '?87

O.S90

1.14

17,670

Aug.

247 

247

247

242

242

242

258

258

258

258

258

255

258

253 

228

228 

224

224

224

220

220

m220

220

220 

224

235 

255

*224

224

7,157

231

0.797

0.92

14,200

Sept.

220 

215

206

202

202

202

224

295

266

228

215

206

202

202 

202

iff

197

197

197

197

197 

197

202

242

276 

252

340 

1,460

1.770

-

9,405

314

1.08

1.21

18,650

Calendar year 1950: Max 18,500 Mln 213 Mean 2,779 Cfsm 9.58 In. 150.07 Ac-ft 2,012,000

Water year 1950-51: Max 52,000 Mln 197 Mean 2,449 Cfsm 8.44 In. H4.6E Ac-ft 1,773,000

Peak discharge (base. 13.500 cfs).-

13,700 cfs (30.72 ft); Jan. 26 (3:50

-Nov. 25 (11 p.m.) 15,500 cfs (51.50 ft); Dec. 25 (11:50 p.m.) 

a.m.) 17,000 cfs (31.77 ft); Feb. 9 (6 p.m.) 36,200 cfs (36.91

t.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations or nearby streams. 

Note. Discharge computed from onee-dally tape-gage readings Oct. 13-16, Oct. 18 to MOV. 19.
CHEHALIS RIVER BASIN

Wynoochee River at Oxbow, near Aberdeen, Wash.

Location. -Lat 47°20' , long. 123°39>, in SW&Wi sec. 1, T. 21 N., R. 8 W. , on left 

bank at Oxbow 25 miles northeast of Aberdeen.

Drainage area . .68 sq mi, approximately (revised). 

Records available. --May 1925 to September 1951.

Gage. --Water -stage recorder. Altitude of gage is 500 ft (by barometer). May 19 to 

NOT . 6, 1925, -staff gage at site 600 ft downstream at different datum. Nov. 7, 

1925, to Sept. 3, 1947, water-stage recorder at site If miles downstream at datum 

444.0 ft above mean sea level (levels by city of Aberdeen).

Average discharge. 26 years, 772 cfs.

Extremes. --Maximum discharge during year, 14,200 cfs Feb. 9 or 10 (gage height, 21.1 

ft, from high-water mark), from rating curve extended above 5,000 cfs on basis of 

slope-area determination at gage height 25.46 ft; minimum, 92 cfs Sept. 21-34 (gage 

height, 0.48 ft), may have been slightly lower during that period due to faulty 

gage heights.

1925-51: Maximum discharge, 18,000 cfs Jan. 22, 1935 (gage height, 30.3 ft, 

from floodmarks, site and datum then in use), from rating curve extended above 5,300 

cfs; minimum, 64 cfs Jan. 27, 1949.

Remarks. Records good except those for periods of doubtful or no gage-height record, 

which are fair. No diversion or regulation.

Rating tables, water year 1950-51 (gage height, in feet, and discharge, in 

cubic feet per second)

Oct. 10 to Sept. 30

1.2 

1.4 

1.6 

1.8 

2.0

109

178

270

381

511

2.3 

2.6 

3.O 

3.5 

4.0

735

1,000

1,390

1,890

2,390

.9 

1.2 

1.5 

l.B

115

185

280

395

535

2.1 

2.5 

3.O 

3.5 

4.0 

5.0

700

980

1,420

1,890

2,390

3,360

6.0

7.0

9.0

11.0

13.0

15.0

4,26C 

5.06C 

6.60C 

8,000 

9.40C 

1O,60C

Discharge, in cubic feet per second, water year October 1950 to September 1911

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

te-tt.

Oct.

134

128

134

310

1,190

*991

1,990

2,160

1,700

4.400

1,460

1,010

795

7O6

629

585

560

948

1,090

872

706

629

575

545

1,220

1,070

1,790

1,990

1,740

1,510 

1,420

34,987

1,129

69,4OO

Nov.

1,560

1,380

1,420

1,240

1,110

1,040

886

788

724

676

646

618

590

570

607

724

706

646

618

9OO

«1,56O

2,790

2,140

2,790

4.740

4,340

2,890

2,190

1,460

1,330

43,679

1,456

86,640

Dec.

1,100

956

948

964

1,170

2,190

1,740

1,420

2,760

3,990

2,190

1,690

1,330

1,200

1,940

1,990

2,290

1,51O

1,600

3,540

*3,630

3,180

3,360

4.98O

2,9§6

1,840

2,190

2,240

1,790

2,190 

1,510

66,418

2,143

131,700

Jan.

1,330

1,640

1,890

1,380

1,150

1,O40

940

8S6

"§58 816

1,04O

956

1,510

1,790

2,140

1,790

1,420

1.24O

1,130

996

1,130

1,100

1,OOO

1,100

3,380

5.880

2,6§6

1,510

1,28O

1,140 

924

46,526

1,501

92,280

Feb.

83O

1,000

1,510

1,240

1,060

908

1,280

3,720

d8, 880

*dlO,50O

«d5,O60

2,890

2,040

1,600

1,510

1,280

1,200

1,050

1,030

988

908

816

754

712

646

585

545

510

I

55,052

1,966

109,200

Mar.

485

a450

a430

a480

a440

a420

a400

a380

a36O

a340

a320

670

760

629

1.120

980

730

6O7

585

688

 802

809

694

629

658

682

652

607

851

1,040 

893

19,591

632

38,860

Apr.

795

788

879

956

879

809

809

74S

658

602

607

748

837

760

730

748

760

640

575

480

462

467

476

480

485

480

646

1.380

830

640

21,154

705

41,960

May

550

505

485

590

682

602

596

*525

500

545

652

629

520

476

467

510

545

476

418

391

440

49O

694

1,080

788

560

500

467

413

343 

315

16,754

540

33,23O

June

312

308

319

304

290

276

262

252

248

252

259

256

248

245

252

248

236

221

212

*206

203

2OO

194

194

188

185

182

180

178

175

7,085

236

14,050

July

172

172

170

168

170

175

168

162

160

158

152

150

150

148

145

142

138

135

133

131

131

129

127

127

127

125

 123

123

121 m

4,470 144

8,870

Aug.

117

Ti5

115

115

113

113

113

113

113

111

111

111

109

*109

109

111

107

1O7

105

105

101

101

101

101

99

99

99

101

1O3

 101 

99

3,327

107

6,6OO

Sept.

99

99

97

95

95

95

121

135

129

101

97

97

95

94

94

94

94

94

94

94

d92

d92

d92

d95

121

105

 105

401

1,960

2.010

7,086

236

14,050

Calendar year 1950 : Max 6,230 Mln 97 Mean 1,043 Ac-ft 755,200

Water year 1950-51 : Max 10,500 Mln 92 Mean 894 Ac-ft 646,800

(1Peak discharge (base. 6.800 cfs).--Oct. 10 (4 a.m.) 7,020 cfs (9.60 ft); Nov. 25 (3 p.m.) 7,30O cfs 

LO.OO ft); Dec. 9 (7:30 p.m.) 8,O7O cfs (11.07 ft); Dec. 24 (3:30 p.m.) 6,880 cfs (9.42 ft); Jan. 

5 (6:3O a.m.) 8,280 cfs (11-44 ft); Feb. 9 or 10 (time unknown) 14,200 cfs (21.1 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nes-by streams.

d Doubtful gage-height record; discharge computed from reconstructed gage-height gra->h based 

on recorded graph and high-water mark, or used as recorded.
28 HUMPTULIPS RIVER BASIN

Humptullps River near Humptullps, Wash.

Location. Lat 47° 13"45", long. 123"56'30", In NE^ sec. 17, T. 20 N., R. 10 W., on right 

bank at abandoned bridge site, 1 mile southeast of Humptullps, 2.5 miles upstream from 

St'evens Creek, and 3-J miles downstream from forks.

Drainage area. 125 sq ml.

Records available. May 1933 to January 1935, July 1942 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 117.4 ft above mean sea level (riverprofile survey). Prior to Jan. 14, 1935, water-stage recorder and July 1, 1942, to 

Feb. 27, 1950, staff gage at same site and datum.

Average discharge. 10 years (1933-34, 1942-51), 1,313 cfs.

Extremes. Maximum discharge during year, 25,500 cfs Feb. 9 (gage height, 11.24 ft); minimum, 94 cfs Sept. 5, 6 (gage height, 0.77 ft).

1933-35, 1942-51: Maximum discharge, 33,000 cfs Jan. 22, 1935 (gage height, 12.7 

ft, from floodmarks); minimum observed, 82 cfs Sept. 11, 1944.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede those published in tt» water-supply 

papers indicated.

Water-Supply 

Paper

767........

792........

982........

1012........

1042........

1062........

1092........

1152........

Water 

year

1934-35

1942-43

1943-44

1945-46

1946-47

1948-49

Date

Apr. 11

Feb. 22

Gage height 

(feet )

9.7

12.7

7.9

9.6

11.02

8.02

9.62

9.8

Discharge 

(cfs)

18,800

33,000

11,800

18,400

24,500

12,200

17,200

19,200

Remarks. Records good except those for period of no gage-height record or shifting control, which are fair. No diversion or regulation.

Revisions. Revised figures of discharge for high-water periods In the water years 1934-35, 

1943-46 are given herewith. They supersede those published in Water-Supply Papers 767, 

792, 982, 1012, 1042, 1062.

Day 

(water year)

1933-34

Dec . 6 .....

9.... .

11... ..

12.....

18.....

20.....

21.....

22.... .

1934-35

Oct. 25.....

Nov . 5 .....

1942-43

Apr . 2 .....

Discharge 

(cfs)

8,890

11,700

8,420

9,920

8,500

8,980

13,200

10,200

8,030

10,600

'9,200

Day 

(water year)

1943-44

Dec. 2.....

3.....

1944-45

Jan. 7.....

12.....

Peb . 7 .....

8.....

Mar . 20 ......

1945-46

Nov. 14.....

Peb. 24.....

Apr. 11.....

Dl scharge 

(ofs)

10,100

12,900

10,800

10,800

14,100

11,800

8,900

8,900

10,800

10,500

Month

Water year 1933-34..

Calendar year 1934 . .

Water year 1942-43 . .

Calendar year 1943 . . 

Water year 1943-44..

March.................

Water year 1944-45 . .

Calendar year 1945..

Water year 1945-46.. 

Calendar year 1946 . .

Cfs- days

565,669

510,176

380,392

337,632 

317,764

74,761

454,708

530,752

527,348 

497,315

Maximum

13 , 200

10,600

9,200

12,900 

12,900

8,900

14,100

14,100

10,800 

10,800

Minimum

150

150

126

126 

82

696

101

101

139 

145

Mean

1,550

1,398

1,042

925 

868

g 857

2,412

1,246

1,454

1,445 

1,363

Per square 

mile

12.4

11.2

8.34

7.40 

6.94

19.3

9.97

11.6

11.6 

10.9

Runoff In 

Inches

16T.24

151.77

113.18

100.46 

9.V53

22.24

135.29

15'. 92

15^.89 

147.95

Runoff in 

acre-feet

1,122,000

1,012,000

754,400

669,600 

630,200

148,300

901,900

1.053.000

1,046,000 

986,500

1.0 

1.3 

1.6 

2.0 

2.5

220

350

520

820

1,300

Rating tables, water year 1950-51 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 9

3.0 

3.5 

4.0 

4.5 

5.0

1,860

2,470

3,200

3,860

4,950

6,0 

7.0 

8.0 

9.0 

10.1

7,030

9,550

12,500

16,000

20,400

1.2 

1.5 

2.0

Feb. 10 to Sept. 30

121

214

343

641

2.5 

3.0 

3.5 

4.0 

4.5

1,0150 

1,590 

2,2]0 

2,910 

3,6fO

5.0 

6.0 

7.0 

8.0 

9.1

4,610

6,810

9,500

12,500

16,400
HUMPTULIPS RIVER BASIN 29

Discharge, In cubic feet per second, of Humptullps Elver near Humptullps, Wash., 

water year October 1950 to September 1951

Day

1

2

5 

4

5

6

7

8

9

10

11

12

15

14

15

16

17

IS

19

30

21

22

25

24 

25

26 

27

28 

29

50

51

Total

Mean

Cfsm

In.

Ac-ft

Oct.

296

280

*1,630 m

1,460

a3,000

a5,500

a2,500

ae.ooo

5,120

1,920

1,410

1,150

928

796

708

1,200

1,460

1,520

1,000

874

764

708 

1,410

1,580 

2,540

5,200 

2,670

2,540

2,470

52,702

1,700

13.6

15.68

104,500

Nov.

2,470

2,160

2,100 

1,860

1,740

1,650

1,460

1,240

1,090 

982

885

796

740

708

847

1,400

*1,410

1,250

1,090

1,460

2,100

4,050

5,200

4,570 

5,550

5.540 

4,760

5,690 

2,600

2,540

-

65,676

2,189

17.5

19.54

130,500

Dec.

2,100

1,740

1.680 

l]680

1,680

5,120

2,820

2,540

5,720 

6,570

5,600

2,740

2,040

1,680

2,280

2,670

5,520

2,400

2,220

4,450

5,540

4,760

5,540

7.820 

5,546

3,520 

*3,860

4,500 

5,120

5,600

2,740

104,970

5,586

27.1

51.25

208,200

Jan.

2,220

5,560

4,570 

5,040

2,280

1,860

1,650

1,460

1.510 

1,460

1,580

1,520

2,680

3,690

3,940

4,030

3,780

2,820

2,280

1,920

2,820

2,470

2,160

2,740 

6,380

7.500 

5,600

2,540 

1,740

1,520

1,410

85,910

2,771

22.2

25.56

170,400

Feb.

1,540

2,960

2,820 

2,400

1,980

1,740

5,240

7,820

20.200 

*T6,400

8,090

* ,510

,210

,410

,210

,770

,650

,510

,650

,950

,710

,470

,290

,220 

,120

1,010 

925

846

-

-

101,451

5,625

29.0

50.18

201,200

Mar.

820

755

765 

795

715

685

656

615

600 

559

566

1,570

1,890

1,540

2.480

2,340

1,710

1,410

1,280

*1,360

1,550

1,710

1,460

1,270 

1,280

1,290 

1,260

1,150 

1,360

1,950

1,650

58,857

1,255

10.0

11.55

77,050

Apr.

1,440

1,360

1,390 

1,410

1,270

1,170

1,140

1,040

952 

863

829

925

970

880

812

812

804

731

685

606

566

514

502

478 

475

»

1.710

§57

755

-

27,192

906

7.25

8.09

55,930

May

634

566

521 

579

715

586

*600

546

508 

508

559

586

527

478

449

449

449

427

400

579

568

574

527

988 

1.020

685 

566

554 

508

455

422

16,915

546

4.57

5.05

55,550

June

4§2 S3*

574 

565

553

558

324

310

501 

292

292

296

292

274

266

262

257

249

*245

257

226

222

218

214 

207

200 

195

190 

186

182

-

8,147

272

2.18

2.42

16,160

July

182

182

182 

179

176

207

T§5

176

170 

167

157

154

154

154

151

148

145

145

157

154

152

154

152

129 

129

*129 

126

126 

124

121

T5T

4,691

151

1.21

1.40

9,500

Aug.

119

TU

117 

114

114

114

114

114

114 

114

114

114

114

110

110

108

106

106

105

105

101

101

99

99

99 

99

110 *1O6

106

105

3,365

108

0.864

1.00

6,670

Sept.

105

101

99 

97

96

218

140 

124

117

108

105

105

101

101

101

101

101

99

97

97

97

105 

245

170 

137

572 

2,340

5.440

-

9,529

518

2.54

2.84

18,900

Calendar year 1950: Max 12,500 Mln 174 Mean .1,714 Cfsm 15.7 In. 186.13 Ac-ft 1,241,000

Water year 1950-51 : Max 20,200 Mln 94 Mean 1,423 Cfsm 11.4 In. 154.52 Ac-ft 1,030,000

Peak discharge (base. 12.000 cfs). Feb. 9 (12 m.) 25,500 cfe ^11.24 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearly streams.

Note. Shifting-control method used Feb. 11 to Mar. 15.
30 QUINAULT RIVER BASIN

Quinault River at Quinault Lake, Wash.

Location. Lat 47°27'30", long. 123°53'30", in sec. 25, T. 23 N., R. 10 W., on left bank 

at outlet of Quinault Lake, 50 ft downstream from Olympic Highway bridge, U. S. Highway 101, and 4 miles southwest of Quinault.

Drainage area. 264 sq mi.

Records available. October 1911 to September 1951 (December 1922 to July 192'4, monthly 

records only in Water-Supply Paper 870).

Gage .--Water-stage recorder. Datum of gage is 184.60 ft above mean sea level (Washington 

S"tate highway benchmark). Prior to Jan. 1, 1913, staff gage on south shore of Quinault 

Lake 3 miles northeast of present site and Jan. 1, 1913, to Sept. 30, 1916, staff gage 

at mouth of Canoe Creek, 4 miles northeast of present site, at datum 1.06 ft higher. 

Oct. 1, 1916, to May 2, 1935, water-stage recorder at site 300 ft downstream from present site at datum 0.36 ft higher than present datum.

Average discharge. 40 years, 2,711 cfs.

Extremes.--Maximum discharge during year, 36,700 cfs Feb. 10 (gage height, 17.24 ft); minimum, 340 cfs Sept. 23, 24 (gage height, 2.18 ft).

1911-22, 1924-51: Maximum discharge, 42,300 cfs Nov. 27, 1949 (gage height, 18.60 

ft), from rating curve extended above 25,000 cfs; minimum, 276 cfs Sept. 12, 1944 (gage 

height, 1.96 ft).

Remarks. Records excellent except those for periods of no gage-height record, which are 

fair. No diversions of consequence. Natural regulation by Quinault Lake.

Revisions. W 442: Drainage area.

Rating tables, water year 1950-51 (gage height, in feet, and discharge, in 

cubic feet per second)

Oct. 6 to Sept. 3O

2.7 

3.0 

3.3 

3.6

700

940

1,210

1,500

2.1 

2.3 

2.6 

3.0

300

410

600

900

3.5 

4.0 

5.0 

6.0

1,370

1,920

3,270

4,950

8.0

10.0

14.0

17.0

13.7CO 

25,2CO 

35,9CO

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsui

In.

Ac-ft

Oct.

820 

748

716

764

 1,500

2,360

3,740

5,700

5,510

10.800

9,200 

6,080

4,410

3,340

2,760

2,360 

2,040

2,220

2,970

3,120

2,760

2,420

2,160

1,920

2,690

3,980

5,130

6,880

6,480 

5,510

4,950

116,038

3,743

14.2

16.35

230,200

Nov.

4,590 

4,590

4,590

4,770

4,770

4,160

3,740

3,200

2,830

2,480

2,290 

2,100

1,920

1.800

1,800

*2,040 

2,160

2,160

1,980

2,040

2,690

4,950

5,700

8,120

10,600

15.200

14,766

10, 800

8,120 

6,080

-

146,970

4,899

18.6

20.70

291, 500

Dec.

5,130 

4,240

3,740

3,500

3.420

5,130

6,280

6,080

6,280

14.400

11,700 

9,420

7,280

5,700

5,510

6,480 

7,700

6,880

5,890

*8, 120

11,500

11,700

10,800

13,900

14,200

9,860

8,330

7,700

6,480 

6,880

6,080

240,310

7,752

29.4

33.85

476,600

Jan.

5,130 

5,320

6,480

5,700

4,590

3,900

3,340

3,040

2,760

2,760

2,760 

2.690

3,340

4,240

5,510

6,280 

5,700

4,770

3,900

3,340

3,580

3,580

3,270

3,820

9,860

15.200

6,980

6,280

4,590 

3,740

3,120

149,570

4,825

18.3

21.07

296,700

Feb.

2,830 

3,660

4,950

4,590

3,980

3,420

5,130

10,600

25,500

*55.100

25, 400 

14,400

9,420

6,880

5,700

4,770 

4,160

3,740

3,500

3,580

3,270

2,970

2,690

2,480

2,360

2,160

1,980

1.660

-

-

201,080

7,181

27.2

28.33

398, 8OO

Mar.

1,740 

1,640

1,580

1,580

1,580

1,470

1,420

1.32O

1,320

1,260

1.210 

1,420

1,800

1,860

2,290

2.850 

2,620

2,290

2,100

 2,040

2,160

2,290

2,220

2,100

1,980

1,980

1,920

1,860

1,920 

2,420

2,420

58, 640

1,892

7.17

8.26

116,300

Apr.

2,360 

2,220

2,220

2,350

2,500

2,550

2,500

2,500

2,450

2,300

2,200 

2,500

2,800

3.100

27900"

2,700 

2,800

2,900

2,600

2,400

2,200

2,160

2,040

1,900

1.860

1,860

1,860

1,980

2,700 

2,400

-

71,810

2,394

9.07

10.12

142,400

May

2,200 

1,920

1.900

 27040

2,400

2,300

2,620

2,550

2,480

2,550

2,830 

3,120

2,900

2,620

2,480

2,550 

2,760

2,760

2,620

2,480

2,480

2,690

3,200

3,980

4.410

3,740

3,270

2,970

2,690 

2,420

2,220

84,150

2,715

10.3

11.85

166,900

June

2,100 

2,100

2,160

2,290

2,290

2,290

2,220

2,160

2,100

2,160

2,220 

2,290

2,360

2,420

2,620

2.690 

2^550

2,480

 2,360

2,290

2,160

2,160

2,160

2,160

2,100

2,040

1.98O

1,980

1.920 

1,926

-

66,730

2,224

8.42

9.40

132,400

July

ffl

1,860

1,800

1,690

1,580

1,470

1,370

1,320

1,320

1,320 

1,320

1,320

1,270

1,240

1,200 

1,170

1,150

1,120

1,050

999

963

945

956

927

*.->oo

868

844

820 

796

180

38,188

1,232

4.67

5.38

75,740

Aug.

26i 

756

733

719

705

684

663

649

642

628

614 

600

586

572

558

544 

530

524

518

512

506

506

500

488

476

464

458

458

*458 

452

440

17,707

571

2.16

2.49

35,120

Sept.

428 

416

404

404

392

386

374

506

524

512

488 

458

440

428

410

398 

392

380

374

362

350

345

SIT

350

410

422

428

607

1,520 

5.420

-

16,673

556

2.11

2.35

33,070

Calendar year 1950: Max 15,200 Mln 630 Mean 3,718- Cfsm 14.1 In. 191.19 Ac-ft 2,692,000

Water year 1950-51: Max 35,100 Mln 345 Mean 3,309 Cfsm 12.5 In. 170.15 Ac-ft 2,396,000

ak discharge (base. 12.000 cfs).--Oct. 10 (2 p.m.) 12,400 cfs (9.47 ft); Nov. 27 (l a.m.) 16,800 

cfs (11.18 ?t)y Dec. 10 (11 a.m.) 15.500 cfs (10.69 ft); Dec. 22 (2 a.m.) 12,200 cfs (9.45 ft); Dec. 

24 (10:30 p.m.) 16,800 cfs (11.15 ft); Jan. 26 (2:30 a.m.) 14,200 cfs (10.25 ft); Feb. 10 (11:50 

a.m.) 36,700 cfs (17.24 ft).

* Discharge measurement made on this day.

Note. Ho gage-height record Apr. 4 to May 3, May 5-6; discharge estimated on b*sl8 of recorded 

range In stage and records for stations on nearby streams.
HOH RIVER BASIN 31

Hoh River near Spruce, Wash.

Location. Lat 47°48'20", long. 124°06'20", in sec. 34, T. 27 N., R. 11 W., on left 

tank 1 mile downstream from Maple Creek, 2£ miles downstream from Spruce, and 5 miles 

downstream from South Fork.

Drainage area. 208 sq mi (revised).

Records available. August 1926 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 320 ft (river-profile survey).

Average discharge. 25 years, 1,958 cfs.

Extremes. Maximum discharge during year, 22,400 cfs Feb. 10 (gage height, 15.17 ft); 

minimum, 435 cfs Oct. 3; minimum gage height, 0.83 ft Sept. 23.

1926-51: Maximum discharge, 38,700 cfs Nov. 26, 1949 (gage height, 22.2 ft, from 

high-water marks), from rating curve extended above 13,000 cfs on basis of slope-area 

determination of peak flow; minimum, 247 cfs Nov. 14, 15, 1929; minimum gag* height, 

0.68 ft Oct. 18, 19, 1946.

Maximum stage known since at least 1906, that of Nov. 26, 1949.

Remarks.--Records good except those for period of no gage-height record, whicl" are fair. 

No diversion or artificial regulation. Large diurnal fluctuation during summer months 

caused by melting glaciers at source.

Revisions (water years). W 1182: 1935(M).

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29 

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

492

463

463

 1,110

2,300

1,660

3,760

4,580

3,480

8.230

3,550

2,470

1,900

1,620

1,370

1,190

1,090

1,430

1,900

1,550

1,280

1,120

1,020

942 

3,510

2,560

4,360

4,690

3,640 

2,930

2,560

73,220

2,362

11.4

13.09

145,200

Nov.

2,650

2,470

3,130

2,830

2,830

2,380

2,060

1,760

1,520

1,400

1,310

1,190

1,090

1.060

1,160

*1,310

1,280

1,140

1,060

1,520

2,200

3,430

3,750

5,150 

8,200

9.160

6,660

4,820

3,640 

2,930

-

85,090

2,836

13.6

15.21

168,800

Dec.

2,560

2,140

2,020

1.860

1,990

3,970

3,530

2,830

5,050

8,720

5,500

4,330

3,330

2,830

3,640

3,640

4,450

3,130

 3,530

6,170

6,720

5,840

6,040

9.270 

6,680

4,450

4,690

4,330

3,760 

4,450

3,330

134,780

4,348

20.9

24.10

267,300

Jan.

2,930

4,570

4,450

3,330

2,740

2,380

2,220

2,060

1,860

1,900

1,760

1.660

2,680

2,560

4,510

3,530

3,030

2,470

2,060

1,940

2,560

2,220

2,140

4,700 

11.500

7,460

4,330

3,130

2,560 

2,220

1,940

99,200

3,200

15.4

17.74

196,800

Feb.

1,940

4,470

3,860

2,930

2,380

2,140

5,770

 9,670

19,400

19.600

10,800

6,400

4,690

3,750

3,530

3,030

2,740

2,560

2,560

2,560

2,300

2,060

1,980

1,900 

1,830

1,660

1,520

1.460

-

-

129,490

4,625

22.2

23.15

256,800

Mar.

1,370

1,280

1,280

1,340

1,220

1,140

1,090

1,040

1,020

942

942

1,380

1,660

1,550

2.450

2,220

1,860

 1,580

1,400

1,580

1,830

1,760

1,550

1,490 

1,550

1,580

1,550

1,430

1,830 

1,980

1,720

46,614

1,504

7.23

8.33

92,460

Apr.

1,550

1,520

1,660

1,800

1,690

1,660

1,690

1,580

1,430

1,370

1,400

1,860

2.060

1,940

1,900

1,980

2,020

1,830

1,620

1,430

1,310

1,220

1,160

1.140 

1,190

1,160

1,370

1,830

1,490 

1,280

-

47,140

1,571

7.55

8.43

93,500

May

1,140

1,060

1.040

 1,250

1,450

1,400

1,600

1,500

1,450

1,600

1,800

1,700

1,500

1,400

1,350

1,600

1,800

1,600

1,400

1,350

1,500

1,800

2,100

2.300 

1,800

1,600

1,550

1,500

1,400 

1,350

1,300

47,190

1,522

7.32

8.44

93,600

June

1.350

1,400

1,500

1,550

1,600

1,500

1,400

1,400

1,400

1,500

1,550

1,600

1,700

1,850

1.900

1,800

1,700

1,600

 1,550

1,520

1,550

1,550,

1,520

1,690 

1,B90

1,620

1,580

1,620

1,720 

1,800

-

47,710

1,590

7.64

8.53

94,630

July

1.830

1,830

1,800

1,490

1,310

1,220

1,140

1,140

1,250

1,370

1,430

1,460

1,490

1,460

1,370

1,370

1,430

1,370

1,220

1,090

1,060

1,090

1,160

1,220 

1,190

 1,090

1,040

1,060

1,020 

990

1,1555

40,010

1,291

6.21

7.15

79,360

Aug.

1.040

1,040

1,020

990

919

874

874

919

919

919

874

810

770

790

831

831

810

770

810

874

919

874

790

731 

693

675

675

 693

622 

588

572

25,516

823

3.96

4.56

50,610

Sept.

588

605

640

657

675

675

961

1,250

896

790

675

640

657

675

712

750

750

712

657

622

572

555

539

555 

790

640

572

1,850

4.030 

3,340

-

28,030

934

4.49

5.01

55,600

Calendar year 1950: Max 11,300 Min 463 Mean 2,371 Cfsm 11.4 In. 154.71 Ac -ft 1,716,000

Water year 1950-51: Ma? 19,600 Min 463 Mean 2,203 Cfsm 10.6 In. 0.43.74 Ac- ft 1,595,000

Peak discharge (base. 10,000 cfs).

13.000 cfs (11.36 ft); Dec. 9 (11 p.

--Oct. 10 (7 a.m.) 12,000 ofs (10.88 ft); Nov. 25 (3:30 p.m.) 

a.) 12,200 cfs (10.95 ft); Dec. 24 (4 p.m.) 12,600 cfs (11.21

* Discharge measurement made on this day.

Note. No gage-height record May 5 to June 18; discharge estimated on basis of records for stations 

on nearby streams.
32 QUILLAYUTE RIVER BASIN

Soleduck River near Fairholm, Wash.

Location. Lat 48°02i30", long. 123°57'30", in lot 4, sec. 35, T. 30 N., R. 10 W. , on

 right bank 300 ft downstream from South Fork, 2.5 miles southwest of Fairholm, and 

17 miles east of Beaver.

Drainage area. 83.8 sq mi (revised).

Records available. October 1917 to September 1921, October 1933 to September 1951.

Gage. Water- stage recorder. Altitude of gage is 1,060 ft (from topographic map). Octo-

 ber 1917 to September 1921, water-stage recorder and Oct. 4 to Nov. 4, 1933, staff gage 

at same site at datum 1.2 ft higher.

Average discharge. 22 years, 610 cfs.

Extremes . Maximum discharge during year, 10,800 cfs Feb. 9 (gage height, 10.40 ft); mini-

 ium7~66 cfs Sept. 23, 24 (gage height, 0.80 ft).

1917-21, 1933-51: Maximum discharge, 23,500 cfs Nov. 26, 1949 (gage height, 16.42 

ft from high-water mark in well), from rating curve extended above 5,300 cfs on basis 

of slope-area determination of peak flow; minimum, 51 cfs Sept. 11, 12, 1944 (gage 

height, 1.07 ft).

Remarks. Records excellent except those for periods of no gage-height record, which are 

fair. No diversion or regulation.

Revisions (water years). W 1182: 1918-19, 1920(M), 1921, 1934-48 (maximum only 1940, 1943, ions (w -

47-48).

Rating table, water year 1950-51 (gage height, in feet,

and discharge, In cubic feet per second)

0.8 66 23 390 5.0 2,440

1.0 91 26 505 5.5 3,030

1.2 120 3 0 695 6.0 3,670

1.4 153 3 5 1,000 7.0 5,100

1.7 216 4 0 1,410 8.0 6,670

2.0 295 4 5 1,900 9.0 8,300

Discharge, in cubic feet per second, water year October 1950 to Septeirber 1951

Day

1

2

3

4

5

6

7

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.

Ac -ft

Oct.

118

117

 114

185

523

414

1,050

1,040

906 

2.900

965

615

473

400

349

319

290

394

514

449

376

331

304

290

1,030

900

2,020

2,220

1,550

1,040

840

23,036

743

8.87

10.22

45,690

Nov.

840

840

1,110

1,110

1,000

870

750

625

550 

497

457

418

397

383

 386

411

386

355

343

586

1,110

1,410

1,760

2,380

5.810

3,540

2,380

1,650

1,190

1,000

-

32,544

1,085

12.9

14.44

64,550

Dec.

840

722

670

625

695

1,550

1,410

1,070

2,010 

3,090

2,160

1,600

1,150

1,000

1,320

1,360

 1,600

1,150

1,190

2,480

2,790

2,380

2,440

3.670

2,440

1,550

1,550

1,410

1,280

1,360

1,070

49,632

1,601

19.1

22.03

98,440

Jan.

1,000

1,700

1,460

1,070

870

780

750

695

645 

635

590

559

900

900

1,800

1,190

930

750

645

645

780

670

625

3,180

5.550

2,550

1,320

965

780

645

605

36,184

1,167

13.9

16.06

71,770

Peb.

1,040

al,650

al,300

a900

a760

a650

2,790

4,350

8.500 

7,920

 3,540

2,000

1,410

1,150

1,040

900

840

750

722

695

635

582

536

518

477

441

422

597

-

-

46,715

1,668

19.9

20.73

92,660

Mar.

383

358

352

349

328

319

313

298

292 

284

282

453

473

411

810

722

 559

493

461

501

554

514

473

465

501

523

514

481

564

572

523

14,125

456

5.44

6.27

28,020

Apr.

489

489

564

670

645

640

645

605

541 

505

528

750

930

810

750

810

870

750

645

559

497

461

437

429

433

433

514

645

559

477

-

18,080

603

7.20

8.02

35,860

May

429

400

 400

493

568

577

645

568

546 

640

780

670

532

501

510

670

722

559

501

493

546

670

900

930

695

564

541

541

485

437

418

17,931

578

6.90

7.96

35,570

June

422

437

485

497

505

461

437

441

445 

473

497

514

554

571

568

501

469

 445

433

422

429

437

449

441

433

411

400

404

408

397

13,787

460

5.49

6.12

27,350

July

594

386

362

313

301

290

273

268

271 

282

276

265

260

249

234

221

216

211

198

191

182

176

174

172

 170

166

159

155

151

146

-144

7,256

234

2.79

3.22

14,390

Aug.

141

138

136

134

131

126

123

123

122 

122

120

118

116

112

112

110

108

104

102

99

98

97

94

92

91

88

 92

131

102

91

87

3,460

112

1.34

1.54

6,860

Sept.

84

83

82

81

79

78

91

138

101 

90

83

81

78

77

74

73

73

72

71

68

67.

67

67

70

99

84

86

234

600

445

3,476

116

1.38

1.54

6,890

Calendar year 1950: Max 4,500 Min 114 Mean 828 Cfsm 9.88 In. 133.98 Ac-ft 599,700

Water year 1950-51: Max 8,300 Min 67 Mean 729 Cfsm 8.70 In. 118.15 Ac-ft 528,000

Peak discharee (base. 6,000 cfs). Jan. 25 (2 D.m.) 6.670 cfs (7.97 ft): Peb. 9 (6 a.m.) 10.800

cfs (10.40 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range in stagr and records for 

Hoh River near Spruce.
ELWHA RIVER BASIN 33

Lake Mills at Glines Canyon near Port Angeles, Wash.

Location.--Lat 48'00'05", long. 123°36'00", on Elwha River, in SE£ sec. 17, T. 29 N., R. 

7 W., at Glines Canyon, 4 miles upstream from Elwha and 11 miles southwest of Port 

Angeles.

Drainage area. 245 sq mi.

Records available. April 1927 to September 1951. Prior to September 1950, change in contents published with tables of monthly discharge for Elwha River at McDonald Bridge, 

near Port Angeles.

Gage. Staff gage read twice daily. Datum of gage is 19.74 ft below mean sea level, datum 

of 1929, supplementary adjustment 1947.

Extremes. Maximum contents observed during year, 39,250 acre-ft Dec. 23 (gage height, 

611.4 ft); minimum observed, 36,110 acre-ft Sept. 23 (gage height, 604.0 ft). 

1927-51: Maximum contents observed during period, 39,940 acre-ft Dec. 22, 1936 

(gage height, 613.0 ft).

Remarks.--Reservoir is formed by concrete dam, completed in 1927. Total capacity, 37,790 

acre-ft at gage height 608 ft (top of gates). Figures given herein represent total 

contents. Water is used for power by Crown Zellerbach Corp.

Cooperation.--Gage-height record furnished by Crown Zellerbach Corp. Capacity curve furrushed by Thebo Starr and Anderton, Inc., constructors of the dam.

Monthly gage height and contents, water year October 1950 to September 1951

Date Oage height 

(feet)t

Contents 

(acre-feet)t

Change In contents 

during month 

(acre-feet)

t Oage height and contents at 12 p.m. based on twice-daily staff gage 

readings.
ELWHA RIVER BASIN

Elwha River at McDonald Bridge, near Port Angeles, Wash.

Location. Lat 48°03'20", long. 123°34'55", in NEiNW£ sec. 33, T. 30 N., R. 7 W., on right

 bank 300 ft upstream from site of McDonald Bridge (now removed), half a mile upstream 

from Little River, 7 miles upstream from mouth, and 8 miles southwest of Port Angeles. 

Drainage area. 269 sq mi (revised).

Records available. October 1897 to December 1901, October 1918 to September 1951. 

Gage. Water-stage recorder. Datum of gage is 200.00 ft above mean sea level, datum of

 1929. Prior to Jan. 1, 1902, wire-weight gage at McDonald Bridge at different datum.

Dec. 9, 1918, to May 1, 1936, water-stage recorder under McDonald Bridge at datum

7.4 ft higher.

Average discharge. 37 years, 1,447 cfs (adjusted for storage since April 1927). 

Extremes. Maximum discharge during year, 14.300 cfs Feb. 9 (gage height, 17.87 ft); mlni-

 mum, 187 cfs July 22 (gage height, 7.24 ft); minimum daily, 266 cfs S"»pt. 9.

1897-1901, 1918-51: Maximum discharge, 30,000 cfs Nov. 26, 1949 (gage height, 24.20

ft); minimum daily, 10 cfs Oct. 3, 1938. 

Remarks. Records good. Plow regulated by Lake Mills Reservoir (usable capacity, 38,650

acre-ft). No diversions.

Rating tables, water year 1950-51 (gage height, In feet, and discharge. In 

cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 30

8.1

8.3

8.6

9.0

9.5

10.0

10.5

11.0

356

439

579

795

1,110

1,470

1,870

2,320

11.5

12.0

13.0

14.0

15.0

16.0

17.0

2,900

3,560

5,010

6,630

8,390

10,300

12,300

235

380

505

705

1,000

1,340

1,730

10.5

11.0

11.5

12.0

13.0

14.0

2,160

2,650

3,170

3,740

5,060

6,630

Note. Same aa preceding 

table above 14.0 ft.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

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

26

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

HI

 516

 561

1,080

946

1,080

1,830

1,590

4.740

1,890

1,430

1,280

1,280

1,060

884

884

1,080

1,320

1,320

1,100

872

978

978 

1,380

1,590 

2,280

2,740

2,050

1,680

1,480

42,757

1,379

84,810

+1,280

Nov.

1,560 

1,640

2,300

2,570

2,470

2,040

1,650

1,510

1,280

1,280

1,280

1,030

1,220

1,110

 1,010

1,110

1,010

1,010

965

1,070

1,350

1,660

2,170

3,670 

5,830

7.710 

6,080

4,330

3,210

3,160

-

68,283

2,276

135,400

0

Dec.

2,430 

2,140

1,900

1,860

1.780

2,670

2,640

2,230

3,420

6,5OO

5,170

3,800

3,290

2,960

3,000

 3,080

3,530

2,900

3,080

4,550

4,980

5,120

4,940

7.750 

5,980

4,710 

3,800

3,580

2,900

3,180

2,270

113,140

3,617

222,400

+40

Jan.

2,320 

2,860

2,450

2,220

1,920

1,840

1,740

1,560

1,550

1,550

1,510

1,510

1,510

1.520

2,280

2,080

1,870

1,670

1,590

1,390

1,530

1,550

1,390

2,070 

4.410

4,000 

2,590

2,000

1,690

1,710

1,590

61,270

1,976

121,500

+300

Feb.

1,550 

2,370

2,100

1,450

1,710

1,550

 2,380

4,790

11,200

11.800

7,480

5,410

4,260

2,770

2,540

2,750

2,500

2,210

2,250

1,940

1,770

1,690

1,570

1,490 

1,380

1,450 

1,340

1.270

_

_

-

86,970

3,106

172,500

-550

Mar.

1,270 

1,200

1,130

940

1,100

1,100

1,000

1,000

910

880

820

1,060

1,060

970

1,240

*1.540

1,200

978

1,060

1,110

1,200

,160

,000

,030 

,000

,030 

,060

,030

i060

,200

1,160

33,298

1,074

66,050

-480

Apr.

997 

1,160

1,160

1,270

1,380

1,340

1,380

1,270

1,380

1,380

1,380

1,570

2,070

2,120

1,980

2,070

2.500

2,300

2,200

1,810

1,810

1,550

1,570

1,490 

1,490

1,490 

1,570

1,770

1,690

1,570

-

48,517

1,617

96,230

+170

May

1,570 

1,410

 f.500

1,410

1,610

1,640

1,920

1,980

1,980

2,100

2,700

2,470

2,230

2,150

2,020

2,390

2,870

2,510

2,200

2,070

2,500

2,730

3,450

3.460 

2,980

2,550 

2,420

2,150

2,020

1,940

1,730

68,460

2,208

135,800

+260

June

1.770 

1,770

2,060

2,140

2,070

2,120

2,020

2,070

2,160

2,140

2,440

2,540

2,610

2,920

3.160

2,850

2,650

 2,550

2,430

2,280

2,200

2,260

2,350

2,280 

2,400

2,280 

2,190

2,180

2,140

2,110

-

69,140

2,305

137 , 100

+430

July

2,200 

2,300

i^BJO

1,890

1,830

1,650

1,430

1,310

1,730

1,730

1,690

1,650

1,650

1,650

1,410

1,600

1,510

1,340

1,340

1,300

1,300

859

1,240

1,?70 

 1,?70

1,200 

1,360

1.C60

8«6

1,130

1.C80

46, COS

1,484

91,250

-250

Aug.

893 

908

1,020

810

794

1.060

957

854

836

743

732

380

785

693

731

638

713

690

444

699

768

676

699

690 

671

 756

663

579

584

586

22,319

720

44,270

-1,280

Sept.

444 

380

366

630

668

566

544

277

266

609

624

724

494

463

374

386

468

453

470

438

465

436

350

369 

383

435 

412

374

573

1.210

-

14,651

488

29,060

+1,490

Adjusted for change In reservoir contents

Mean

Cfsm

In.

Ac-ft

1,400

5.20

6.0C

86,090

2,276

8.46

9.44

135,400

3,617

13.4

15.50

222,400

. 1,981

7.36

8.49

121,800

3,097

11.5

11.99

172,000

1,066

3.96

4.57

65,570

1,620

6.02

6.72

96,400

2,213

8.23

9.49

136,100

2,311

8.59

9.58

137,500

1,490

5.50

6.34

91,000

699

2.60

3.00

42,990

513

1.91

2.13

30,550

Calendar year 1950: 

Water year 1950-51:

Max 

Max

7 

11

,750 

,800

Min 

Mln

356 

266

Mean 

Mean

2,

1,

091 

846

Ac-ft 

Ac-ft

1,514 

1,336

,000 

,000

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

2

1

,091 

,848

Cfsm 

Cfsm

7.77 

6.87

In. 

In.

105 

93

.52 

.25

Ac-ft 

Ac-ft

1,514 

1,338

,000 

,000

* Discharge measurement made on this day.

t Change In contents, equivalent In acre-feet, In Lake Mills Reservoir, furnlBhei by Crown 

Zellerbach Corp. <
DUNGENESS RIVER BASIN 35

Dungeness River near Sequim, Wash.

Location. La t 48°00'40", long. 123°07'50", in SW£SE£ sec. 12, T. 29 N., R. 4 ¥., on right 

bank three-quarters of a mile upstream from Canyon Creek, 4^ miles southwest of Sequim, 

and 11^ miles upstream from mouth.

Drainage area.- -156 sq mi.

Records available. --July 1897 to July 1898, June 1923 to September 1930, June 1937 to September 1951.

. Water-stage recorder. Altitude of gage is 620 ft (from topographic map). July 5, 

897, to July 28, 1898, wire-weight gage at bridge 2 miles downstream at different datum.

June 1923 to Sept. 30, 1930, staff gage Just above fish hatchery diversion half a mile

downstream at different datum. June 19 to

at datum 1.9 ft higher.

Aug. 12, 1937, staff gage at present site

Average discharge. --21 years (1923-30, 1937-51), 347 cfs.

Extremes . Maximum discharge during year, 4,600 cfs Feb. 9 (gage height, 6.53 ft); minimum, 118 cfs Sept. 23-24.

1897-98, 1923-30, 1937-51: Maximum discharge, 6,820 cfs Nov. 27, 1949 (gage height, 

7.3ft), from rating curve extended above 2,000 cfs on basis of slope-area determination 

of peak flow; minimum observed, 77 cfs Sept. 10, 1938.

Remarks . Records good except those for periods of shifting control, which ar^ fair. No 

diversion or regulation.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

to.

21

22

23

24

25

26 

27

28

29

30

31

'Total

Mean

Cfsm

In.

Ao-ft

oci,.

142

140

 132

142

221

181

239

383

304

895

481

340

286

258

235

217

204

278

262

258

232

214

197 

188

373

359 

549

481

383

317

278

9,169

296

1.90

2.19

18,190

Nov.

290

299

518

645

609

499

409

364

321

304

286

266

254

*242

246

246

239

232

224

2lo

340

354

388 

764

1,440

2.340 

1,866

981

726

616

-

16,515

550

3.53

3.91

32,760

Dec.

537

470

441

399

388

576

569

506

812

1.830

1,320

1,030

854

741

726

*718

796

703

711

813

966

993

1,110 

1,800

1,540

1,090 

904

796

703

659

589

26,090

812

5.40

6.22

51,750

Jan.

638

674

703

589

524

493

470

441

414

404

394

364

359

354

688

603

513

458

409

383

399

383

m711

788 

655

506

453

425

394

15,350

195

3.17

3.66

30,150

Feb.

378

493

506

430

388

 559.

487

821

3.020

2,910

1,790

1,110

888

756

681

609

569

524

499

476

476

470

458 

453

420

399 

378

364

-

-

-

21,112

754

4.83

5.03

41,880

Mar.

364

349

340

340

321

312

308

299

295

282

274

278

282

270

340

*312

274

2"6"2 262

282

299

282

270 

262

270

270 

266

266

295

304

278

9,108

294

1.88

2.17

18,070

Apr.

278

?§6

326

383

404

383

404

404

388

373

388

458

556

576

562

569

616

623

556

499

458

425

404 

399

414

420 

436

441

420

383

-

13,232

441

2.83

3.15

26,250

May

364

 354

359

420

493

537

576

576

596

652

888

813

681

623

623

734

837

764

681

666

696

804

1.000 

888

756

681 

659

603

543

518

493

19,878

641

4.11

4.74

39.430

June

506

524

576

603

616

603

603

623

674

711

756

788

845

948

993

862

813

*772

756

711

703

711

741 

772

756

718 

696

688

726

726

21,520

717

4.60

5.13

42.680

July

749

741

718

666

569

518

499

506

549

582

569

543

549

549

537

521

512

512

458

436

414

414

436 

 430

425

394 

368

364

354

335

330

15,550

502

3.22

3.71

30.840

Aug.

326

317

312

304

299

278

270

266

266

262

262

242

228

224

235

235

224

210

210

210

210

217

207

 194

178

178 

188

349

^46

207

188

7,542

243

1.56

1.80

14.960

Sept.

172

167

164

164

161

161

175

204

181

167

158

150

145

142

142

145

145

142

140

135

125

123

120 

118

135

125 

123

175

246

286

4,736

158

1.01

1.13

9.390

Calendar year 1950: Max 2,340 Min 132 Mean 520 Cfsm 3.33 In. 45.30 Ac-ft 376,800

water Mater year year 1950-51; 1950-51: Max Max 3,020 3,020 Min Min us us Mean Mean 493 493 Cfsm Cfsm 3.15 3.15 In. In. 42.87 42.87 Ac-ft Ac-ft 356,600 356,600

Peak discharge (base. 1.000 cfs). Oct. 10 (7:30 a.m.) 1,460 cfs (4.70 ft)j Nov. 26 (5:30 to 6:30 

p.m.) 2,730 cfs (5.57 ft); Dec. 10 (2:30 a.m.) 2,080 ofs (5.23 ft); Dec. 24 (5 p.m.) 2,230 ofs (5.29 

ft); Feb. 9 (9:45 a.m.) 4,600 cfs (6.53 ft); May 23 (8 to 9 a.m.) 1,070 ofs (4.48 ft); June 15 (1 to 

4 a.m.) 1.070 cfs (4.48 ft).

P.-. 

ft)j 

4 a.m.) 1,070 cfs U.48 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Nov. 27 to Sept. 30.
36 LITTLE QUILCENE RIVER BASIN

Little Quilcene River near Quilcene, Wash.

Location. Lat 47°50'15", long. 122°53'15", in NE£ sec. 14, T. 27 N., R. 2 W., on left 

bank 60 ft downstream from highway bridge, H miles northwest of Quilcene, and lj 

miles upstream from mouth.

Drainage area.--19.6 sq mi (revised). 

.Records available. August 1926 to October 1927, July 1951 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 90 ft (from topographic map). Aug. 

55, 1926, to Oct. 4, 1927, staff gage at site 120 ft upstream at different datum.

Extremes. Maximum discharge during period, 31 cfs Aug. 28 (gage height, 2.24 ft); minimum, 5.9 cfs Sept. 20, 21 (gage height, 1.90 ft).

1926-27, 1951: Maximum discharge observed, 259 cfs Jan. 2, 1927 (gage height, 

3.00 ft, site and datum then in use), from rating curve extended above 130 cfs; minimum, 4.1 cfs Sept. 1, 1926 (gage height, 0.86 ft, site and datum then in use).

Remarks. Records excellent except those for periods of no gage-height record, which 

are good. No known diversion or regulation.

Discharge, In cubic feet per second July 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

26

29

30

31

fetal 

Mean

Cfsm

In.

Ao-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July

a!3

13

13

14

15.5

15.5

a!5

a!5

14.5

14.5

13

13

13

a!3

a!3

13

13

13

13

13

12.5

12

12

"ft*

15

15

15

13

12.5

12.5

416.5 

13.4

0.684

0.79

626

Aug.

12

11.5

11.5

10.5

10

9.6

9.6

9.6

9.6

 9.6

10

10

9.6

9.6

9.6

9.1

8.6

8.2

7.7

7.7

.2

.2

.2

.2 

.2

.2

.7

19

12

9.1

 8.6

293.2 

9.46

0.483

0.56

582

Sept.

S.2

7.7

7.2

7.2

7.2

7.2

7.2

~97T

6.2

7.7

7.2

7.2

6.6

6.8

6.3

6.3

6.3

6.3

6.3

5 g*39

6.3

6.S 

7.2

7.2

7.2

7.7

8.2

8.6

-

218.3 

7.28

0.371

0.41

433

Calendar year : Max Mln Mean Cfsm In. Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations or nearby Btrea
BIG ftUILCENE RIVER BASIN 37

Big Quilcene River at Quilcene, Wash.

Location. Lat 47°49<10", long. 122°52'30", in NWj sec. 24, T. 27 N., R. 2 W., on right

 banK a quarter of a mile south of Quiloene and half a mile upstream from mouth.

Drainage area. 68.7 sq mi.

Records available. August 1926 to September 1927, June 1951 to September 1951 (discontinued).Published as "near ftuilcene" 1926-27.

Gage.--Water-stage recorder. Altitude of gage is 20 ft (from topographic map). Aug. 24,

 1926, to Sept. 30, 1927, staff gage at bridge 2 miles upstream at different datum.

Extremes.--Maximum discharge during period, 198 cfs June 16 (gage height, 2.14 ft); mini-

 mum, 17 cfs Sept. 27 (gage height, 1.05 ft).

1926-27, 1951: Maximum discharge observed, 1,620 cfs Dec. 2, 1926 (gage height, 

4.10 ft, site and datum then in use), from rating curve extended above 700 cfs; minimum, that of Sept. 27, 1951.

Remarks. Records excellent except those for periods of no gage-height record, which are

 fair. A probable maximum of 26.2 cfs Is diverted at Port Tovmsend Dam for municipal 

water supply of that city. No regulation.

Discharge, in cubic feet per second, June to September 1951

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

Ibtal

Mean

Cfsm

In.

V--ft

Oct. Nov. Dec. Jan. Feb.

_- - - - _r : Max Mln

Mar.

Mean

Apr. May June

al!5

a!20

a!25

a!55

a!55

a!55

a!55

a!55

a!40

a!45

a!60

*a!60

170

178

189

19£

189

181

170

164

156

152

156

156

alSO

1145

a!40

a!35

a!40

a!45

-

4,551

152

2.21

2.46

9,050

July

a!40

a!40

136

146

159

*122

109

100

94

94

98

100

105

100

96

92

88

86

85

79

72

69

71 71

71

69

68

65

65

62

59

2,887

95.1

1.56

1.56

5,750

Aug.

58

58

56

55

54

52

§1

50 *47

46

46

44

44

42

40

58

58

56

56

56

56

56

55

54

55

51

30

40

58

 33

50

1,511

42.5

0.616

0.71

2,600

Sept.

30

28

26

26

25

24

24

26

26

25

24

23

22

21

21

20

20

20

19.5

19

19

18.5

II18.5

19

18.5

18

30

28

55.

692.0

23.1

0.356

0.57

1,570

Cfsm In. Ac-ft

Water yeai : Max Min Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

stations on nearby streams.
38 DOSEWALLIPS RIVER BASIN

Dosewallips River near Brinnon, Wash.

Location [revised) . La t 47»43i35", long. 123»00i30", In SW£ sec. 24, T. 26 N., R. 3 W., 

on lert bank half a mile upstream from Corrigenda ranger station, 5^ miles northwest 

of Brinnon, and 1\ miles upstream from mouth.

Drainage area. 93.7 sq ml (revised).

Records available. October 1930 to October 1949, May 1951 to September 1951 (discontinued).

Gage. Water-stage recorder. Altitude of gage is 250 ft (from topographic map).

Average discharge. 19 years, 445 cfs.

Extremes.--Maximum discharge during period, 1,420 cfs June 14 (gage heiglt, 4.43 ft); minImum not determined, occurred sometime during peril of no gage-height record Sept. 

13-30.

1930-49, 1951: Maximum discharge, 10,900 cfs Nov. 5, 1934 (gage height, 9.57 ft), 

from rating curve extended above 4,500 cfs; minimum, 65 cfs Dec. 4, 1936 (gage height, 

1.71 ft).

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No diversion or regulation.

Rating table, May 23 to Sept. 30, 1951 (gage height, in feet, 

and discharge, In cubic feet per second)

1.9

2.0 

2.5

118

248

3.0 

3.6 

4.2

436

765

1,200

Discharge, In cubic feet per second, May to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May

-

-

-

-

_

-

-

-

-

.

-

-

-

-

-

-

-

~

-

.

-

1,380

1,200

1,000

872

824

765

693

645

615

_

-

-

-

-

June

m729

765

778

772

765

784

817

893

970

970

*1,040

1,160

1.200

1,080

1,000

935

935

886

865

879

935

935

900

872

851

879

900

920

-

26,675

889

9.49

10.59

52,910

July

900 

880

850

760

640

542

526

542

603

627

615

585

597

574

542

526

*521

492

441

406

389

397

414

410

397

373

357

349

342

331

527

16,255

524

5.59

6.45

32,240

Aug.

Ml312

302

284

271

264

264

261

»258

258

242

230

227

230

227

221

212

210

215

218

221

210

196

182

177

174

201

185

169

*J62

7,222

233

2.49

2.87

14,320

Sept.

159 

157

157

157

157

157

177

207

174

162

154

150

145

140

135

130

125

122

120

117

113

110

107

106

130

125

120

250

500

600

-

5,163

172

1.84

2.05

10,240

Calendar year : Max Mln Mean Cfsm In. Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

Note. No gage-height record June 29 to July 5, Sept. 13-30; discharge estimated on basis of records for stations on nearby streams.
DUCKABUSH RIVER BASIN 39

Duckabush River near Brlnnon, Wash.

Location. Lat 47°41'00' , long. 123°00'40", In SW$SW£ sec. 1, T. 25 N., R. 3 W., on left 

bank 4£ miles upstream from mouth and 5 miles west of Brlnnon.

Drainage area. 66.5 sq ml (revised).

Records available. August to December 1910 (gage heights only), December 1910 to December 1911, June 1938 to September 1951. Published as "near Duckabush" 1910-11.

Gage.--Water-stage recorder. Datum of gage Is 241.49 ft above mean sea level, datum of 

T929. Aug. 19, 1910, to Dec. 31, 1911, staff gage at same site at different datum.

Average discharge. 13 years (1938-51), 381 cfs.

Extremes. Maximum discharge during year, 4,190 cfs Feb. 9 (gage height, 7.21 ft); minimum, 50 cfs Sept. 23, 24 (gage height, 1.85 ft).

1910-11, 1938-51: Maximum discharge, 8,960 cfs Nov. 26, 1949 (gage height, 10.06 

ft), from rating curve extended above 1,800 cfs on basis of slope-area determination 

of peak flow; minimum, 45 cfs Oct. 26, 28, 29, 1942 (gage height, 1.36 ft).

Remarks. Records good except those for periods of doubtful gage-height record, which are 

fair, and those for periods of no gage-height record, which are poor. No diversion or 

regulation.

Rating table, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

1.9 

2.2

2.5

2.6

50

110

191

299

3.2

3.6 

4.0 

4.5

460

700

950

1,330

5.0 

5.5 

6.0 

7.0

1,760

2,250

2,750

3,930

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

Ac-ft

Oct.

76 

 76

78

134

475

312

800

850

700 

1.200

480

385

299

253

217

191

191

d445

d480

363

283

242

211

235

900

700

1,100

1,000

800

700

600

14,776

477

7.17

8.26

29,310

Nov.

700 

680

900

800

600

480

426

367

320 

295

280

253

240

 238

253

280

268

249

228

SST

d475

600

750

1,000

2,000

2_.10Q

1,400

1,000

800

650

-

18,935

631

9.49

10.59

37,560

Dec.

600 

550

520

520

600

1,000

900

750

1,500 

1,500

1,100

900

800

750

 1,580

1,410

1,450

985

1,170

1,580

1,760

1,580

1,760

2.000

1,290

950

790

718

622

640

550

32,825

1,059

15.9

18.36

65,110

Jan.

500 

520

480

450

420

400

380

360

350 

370

360

350

500

480

700

550

450

400

380

360

330

310

290

500

1.200

900

600

500

430

390

370

14,580

470

7.07

8.15

28,920

Feb.

350 

400

420

350

300

 268

790

2,170

3.670 

2,880

1,330

900

700

550

500

450

420

380

350

330

310

290

270

260

250

230

220

210

-

-

-

19,548

698

10.5

10.93

38,770

Mar.

200 

190

180

170

165

160

155

150

145 

140

135

170

220

210

 455

350

280

246

242

291

303

276

249

235

238

249

246

238

385

398

341

7,412

239

3.59

4.15

14, 700

Apr.

320 

337

408

480

470

445

475

455

412 

390

403

540

682

652

622

646

6"6"4" 706

565

490

430

394

372

367

376

390

495

604

510

430

-

14, 530

484

7.28

8.13

28,820

May

376 asa

350

460

565

565

616

570

560 

616

790

664

550

515

525

640

748

622

540

555

622

742

950

820

682

565

550

495

440

408

390

17,841

576

8.66

9.98

35,390

June

403 

440

510

530

520

515

520

510

525 

555

592

580

628

 712

754

682

616

580

560

535

525

535

555

545

520

510

495

485

495

505

~

16,437

548

8.24

9.19

32,600

July

500 

490

485

412

350

320

307

307

324 

341

337

324

320

312

287

276

276

268

246

228

214

221

217

 217

214

201

188

182

179

173

161

8,883

287

4.32

4.97

17,620

Aug.

m153

148

145

134

132

129

127 

124

122

120

115

108

108

106

101

99

99

99

99

97

95

 90

86

82

84

101

95

86

82

3,485

112

1.68

1.95

6,910

Sept.

80 

78

78

76

76

76

84

115

88 

78

74

72

68

64

63

61

61

59

59

57

55

54

52

52

64

61

59

117

354

381

-

2,716

90.5

1.36

1.52

5,390

Calendar year 1950: Max 2,360 Mln 76 Mean 533 Cfsm 8:02 In. 108.77 Ac-ft 385,800

Water year 1950-51: Max 3,670 Mln 52 Mean 471 Cfsm 7.08 In. 96.18 Ac-ft 341,100

Peak discharge (base. 2.500 cfs).--

4,190 cfs (7.21 ft).

Probably Nov. 26 (tpne and discharge unknown); Feb. 9 (2 a.m.)

Discharge measurement made on thla day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height grap^i based on 

recorded graph, and records for nearby stations.

Note. No gage-height record Oct. 7-10, Oct. 25 to Nov. 5, Nov. 13, Nov. 22 to Dec. 14, Jan. 3 to 

Feb. 5, Feb. 12 to Mar. 14; discharge estimated on basis of records for stations on nea-by streams.

288995 0-54-4
40 HAMMA HAMMA RIVER BASIN

Hamma Haninia River near Eldon,-Wash.

Location. Lat 47°3S'20", long. 123°07'00", in NW£ sec. 7, T. 24 N., R. 3 W., on left 

bank a quarter of a mile downstream from Watson Creek, 4£ miles norttwest of Eldon, 

and 6 miles upstream from mouth.

Drainage area.--51.3 sq mi.

Records available. June to September 1951.

Gage. Water-stage recorder. Altitude of gage is 510 ft (from topograptIc map).

Extremes. Maximum discharge during period not determined, probably occi-rred sometime 

during period of no gage-height record in September; minimum, 43 cfs probably Sept. 

23, 24 (gage height, 0.70 ft, from recorded range in stage).

Remarks.--Records excellent except those for periods of no gage-height record, which are 

fair. No diversion or regulation.

Discharge, in cubic feet per second, June to September 1951

Day

1

2

3

4

5

6

7

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.

AO-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

-

-

-

-

-

.

-

-

-

-

.

-

-

-

-

-

-

-

-

-

.

-

-

-

-

_

-

292

295

295

-

-

-

-

-

-

JUy

292

284

276

258

233

*216

203

193

193

199

196

190

187

184

178

169

163

158

152

147

139

134

*134

129

*127

122

115

111

109

107

102

5,400

174

3.39

3.91

10,710^

Aug.

100

98

96

94

92

88

86

84

83

*83

81

79

77

75

73

72

70

70

68

66

63

63

63

61

60

58

6O

61

60

58

*58

2,300

74.2

1.45

1.67

4,560

Sept.

58

56

55

55

54

54

54

55

55

55

55

54

52

50

50

49

a 48

a47

a47

a46

a45

a44

a43

a43

a50

a47

a44

alOO

a280

aSOO

-

2,045

68.2

1.33

1.48

4,060

Calendar year : Max Min Mean Cfsm In. Ac -ft

Water year : Max Mln Mean Cfsm In. Ac -ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in sta'e and records for 

stations on nearby streams.
EAGLE CREEK BASIN 41 

Eagle Creek near Lllllwaup, Wash.

Location. Lat 47e 29'10", long. 123°04'40", In NW£ sec. 16, T. 23 N., R. 3 W., on left 

Dank 750 ft upstream from mouth and Z\ miles northeast of Lllllwaup.

Drainage area. 7.06 sq ml.

Records available. June to September 1951 (discontinued).

Gage. Water-stage recorder. Altitude of gage Is 10 ft (from topographic map).

Extremes. Maximum discharge during period, 25 cfs Sept. 29 (gage height, 1.83 ft), from 

rating curve extended above 11 cfs; minimum, 6.9 cfs Sept. 20 (gage height, 1.42 ft).

Remarks. Records good except those for period of no gage-height record, which are poor. 

NO diversion or regulation.

Discharge, in cubic feet per second, June to September 1951

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

Obta!

Mean

Cfsm

In.

Ao-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

a!3.0 

a!2.5

a!2.5

a!2.5

a!2.5

a!2

all. 5

all

all

all

alO.5

*a!0.5

10.5

10.5

10.5

10.5

10.5

9.9

9.9

9.5

9.5

9.5

9.5

9.5

9.1

9.1

9.1

*9.1

9.1

9.1

~

314.9

10.5

1.49

1.66

625

July

9.1 

9.5

9.5

9.9

9^

9.1

9.1

9.1

8.7

8.7

8.4

8.4

8.7

8.7

8.7

8.7

8.4

*8.4

8.4

EkO

8.0

8.0

8.0

8.0

8.4

8.4

8.0

8.0

8.0

8.4

8.4

266.6

8.60

1.22

1.40

529

Aug.

8.4 

8.4

8.4

8.4

8.0

8.0

8.0

8.0

 8.4

8.4

8.4

8.4

8.0

8.0

8.0

8.0

7.6

7.6

7.6

7.6

7.6

7.6

7.6

8.0

8.0

8.0

8.7

9.1

8.4

*8.0

8.0

250.6

8.08

1.14

1.32

497

Sept.

8.0 

8.0

8.0

7.6

7.6

8.0

9.5

8.4

8.0

8.0

7.6

7.6

7.6

7.6

7.6

7.6

7.6

7.6

7.6

1*1

7.3

7.3

7.3

7.3

7.6

7.3

8.4

9.5

14.5

12.5"

245.8

8.19

1.16

1.29

488

Calendar year : Max Hln Mean Cfsm In. Ac -ft

Water year : Max Mln Mean Cfsm In. Ac -ft

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

stations on nearby streams.
42 FINCH CREEK BASIN

Finch Creek at Hoodsport, Wash.

Location.--Lat 47°24'20", long. 123°08'50", in SE£ sec. 11, T. 22 N., R. 4 W., on right 

bank in Hoodsport a quarter of a mile upstream from mouth.

Drainage area.--3.45 sq mi.

Records available.--June to September 1951 (discontinued).

Gage.--Water-stage recorder. Altitude of gage is 20 ft (from topographic map).

Extremes. Maximum discharge during period, 27 cfs Sept. 29; maximum gage height, 1.40 ft 

June 13, 14; minimum discharge, 11 cfs Aug. 31.

Remarks. Records excellent except those for period of no gage-height record, which are 

poor. No diversion or regulation.

Discharge, in cubic feet per second, June to September 1951

Day

1

2

3

4

S

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.

Ae-ft

Oct. Nov. Dec. Jan. Feb.

Calendar year : Max Mln

Mar. Apr. May June

a20

a!9.5

a!9.5

a!9.S

a!9.5

a 19

al8.5

ale

a 18 aie

al7.5

*a!7.5

17

16.5

16.5

16.5

16.5

16.5

16.5

16.5

16.5

16.5

16.5

16.5

Ifa

16

16

 15,5

15.5

15.5

517.5

17.2

4.99

5.58

1,030

Jul-'

15.5

15.5

15

15

15

15

15

15

15

15

15

15

14.5

14.5

14.5

1 .5

1 .5

*1 .5

1 .5

1

14

14

14

14

14

14

14

13.5

13.5

if

447.5

14.4

4.17

4.82

888

Aug.

13

13

15.5

13.5

13

13

13

13

*13

13

12.5

12.5

12

12

12

12

12

12

12

12

12

12

11.5

11.5

11.5

11.5

11.5

11. S

11.5

 11.5 

11.5

379.5

12.2

3.54

4.09

753

Sept.

11.5

11.5

11.5

11.5

11.5

11.5

13

13

13

12.5

12.5

13

13

13

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12

12

12.5

12.5

12

12.5

14

19.5

19

385.5

12.8

3.71

4.16

765

Mean Cfsm In. Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

stations on nearby streams.
SKOKOMISH RIVER BASIN 43

North Fork Skokomish River below Staircase Rapids, near Hoodsport, Wash.

Location. Lat 47°30'55", long. 123°19'45", in NW£ sec. 4, T. 23 N., R. 5 W., on left bank 

three-guarters of a mile upstream from Lake Cushman, 2 miles upstream from Dry Creek, 

and llf miles northwest of Hoodsport.

Drainage area.--60.2 sq mi (revised).

Records available. July 1924 to September 1951.

Gage. Water-stage recorder. Datum of gage is 760.85 ft above mean sea level (riverprofile survey). July 30, 1924, to Oct. 31, 1934, water-stage recorder on opposite 

bank at same datum, Nov. 1, 1934 to Nov. 10, 1941, several staff gages at approximately same site on opposite bank at same datum.

Average discharge. 27 years, 469 cfs.

Extremes. Maximum discharge during year, 7,030 cfs Feb. 10 (gage height, 7.69 ft); minimum, 52 cfs Sept. 24 (gage height, 1.47 ft).

1924-51: Maximum discharge, 24,200 cfs Nov. 26, 1949 (gage height, 12.20 ft, from 

high-water mark), from rating curve extended above 1,500 cfs on basis of slope-area 

determination of peak flow; minimum recorded, 16 cfs Sept. 23, 1930 (gage height, 1.12 

ft).

Remarks. Records good except those for period of shifting control, which are fair. No 

diversion or regulation.

Rating table, water year 195O-51, except period of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

1.5 

1.7 

1.9 

2.1 

2.3

82

120

168

230

2.6 

2.9 

3.2 

3.6 

4.0

647

890

1,190

4.5 

5.0 

6.0 

7.0

1,640

2,190

3,57.0

5,420

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

Ac-ft

Oct.

84

82

*89

356

800

598

1,150

1,230

1,040 

2.200

858

581

449

383

334

293

278

687

745

544

420

360

318

309

1,420

960

1,640

1,500

1,150

890

751

22,499

726

12.1

13.90

44,630

Nov.

858

825

1,190

1,070

890

722

608

529

459 

420

392

356

*334

313

318

322

297

270

259

334

658

925

1,080

1,500

3,320

3.420

2,190

1,540

1,110

925

-

27,434

914

15.2

16.95

54,410

Dec.

763

670

620

630

828

1,540

1,320

1,030

2.870 

2,840

1,900

*1,4OO

1,070

995

1,640

1,690

1,790

1,230

1,400

2,140

2,370

2,070

2,020

2,430

1,690

1,270

1,150

1,030

995

1,110

890

45,391

1,464

24.3

28.04

90,030

Jan.

775

800

763

664

592

544

514

468

439

488

483

439

664

642

925

734

592

503

434

401

397

360

329

641

1.540

1,230

788

598

514

449

406

19,126

617

10.2

11.82

37,940

Feb.

388

464

473

425

383

370

1,270

2,400

5.220 

5,220

2,560

1,590

1,190

995

890

800

728

642

608

560

514

468

439

*416

388

360

343

326

-

_

-

30,430

1,087

18.1

18.80

60,360

Mar.

305

289

278

270

255

241

237

227

220 

204

200

237

266

244

425

388

318

289

286

326

347

326

301

*297

309

322

309

309

473

483.

425

9,406

303

5.03

5.81

18,660

Apr.

401

434

544

653

642

620

664

630

576 

550

598

788

960

858

813

890

925

858

710

598

519

488

464

468

488

508

*625

825

636

519

-

19,252

642

10.7

11.89

38,190

May

449

ill

434

620

698

704

745

658

653 

769

890

734

603

571

592

757

794

658

581

598

704

825

1.070

1,030

794

647

614

550

488

449

449

20,539

663

11.0

12.69

40,740

Calendar year 1950: Max 3,420 Mln 82 Mean 695 Cfsm 11.

June

483

524

581

576

566

539

534

524

539

581

592

*581

603

658

6J3.

636

581

566

529

503

498

493

508

493

473

454

434

425

434

430

-

16,031

534

8.87

9.90

31,800

July

425

411

392

334

297

286

270

266

270 

278

270

262

255

244

227

220

217

207

*188

180

171

174

177

174

165

155

150

150

147

140

138

7,240

234

3.89

4.47

14,360

Aug.

158

135

129

127

118

114

112

114

112

110

106

102

98

96

96

96

95

91

91

91

93

*91

87

86

82

80

82

86

84

82

21

3,101

100

1.66

1.92

6,150

54 In. 156.62 Ac-f 1; 502

Sept.

76

74

72

71

71

71

116

114

84 

74

71

68

68

65

65

65

62

60

59

58

56

55

53

55

77

62

62

237

1 .090

814

-

4,025

134

2.23

2.49

7,980

,800

Water year 195O-51: Max 5,220 Min 53 Mean 615 Cfsm 10.22 In. 138.68 Ac-ft 445, 2OO

Peak discharge (base. 3.000 cfs).--

5,850 cfs (7.15 ft); Dec. 9 (7 p.m.)

Oct. 10 (4 a.m.) 3,660 cfs (6.O4 ft); Nov. 25 (2:30 p.m.) 

5,420 cfs(7.04 ft); Dec. 21 (7 p.m.) 3,410 cfs (5.91 ft); Dec.

24 (2 p.m.) 3,180 cfs (5.73 ft); Feb. 10 (2 a.m.) 7,030 cfs (7.69 ft).

- uj.st;iia.i'&c? meeiDUj-eineiiiy maue un UIIJ.ES uo.y .

Note. Shifting-control method used Apr. 13 to Sept. 29.
44 SKOKOMISH RIVER BASIN

North Pork Skokomlsh River near Hoodsport, Wash.

Location. Lat 47°25'20", long. 123°13'10", in SW£ sec. 5, T. 22 N., R. 4 W., at city of 

Tacoma dam 4 miles northwest of Hoodsport.

Drainage area.--93.7 sq ml (revised).

Records available. August 1910 to September 1911 (gage heights and discharge measurements 

only), February 1913 to September 1930, October 1930 to September 1935 (annual discharge only), October 1950 to September 1951 (monthly discharge only), in report's of 

Geological Survey. October 1911 to September 1933 (monthly discharge only), in Statte 

Water-Supply Bulletin 5.

Page. Discharge determined from record of power output and Lake Cushman elevations, plus 

spillway discharge when present. Prior to Sept. 23, 1911, staff gage and February 1913 

to September 1923, water-stage recorder at approximately same site at altitude of about 

500 ft. October 1923 to September 1930, water-stage recorder 1 mile downstream at 

different datum.

Average discharge. 25 years (1911-35, 1950-51), 751 cfs (adjusted for storage). 

Extremes. Not determined since regulation began in Lake Cushman.

Remarks. Records fair. No diversion of consequence. Flow regulated in Lake Cushman 

since October 1925 for power by city of Tacoma.

Cooperation. Records of power output and elevations of Lake Cushman furnished by city of 

Tacoma.

Monthly discharge. In cubic feet per second, water year October 195O to September 1951

Month

Calendar year 1950

Hay

July. ...............

Septenber. ..........

Water year 1950-51

Observed

Discharge in 

second-feet

Haxinun

2,070 

2,150 

3,120

3,120

2,120 

2,820 

1,310 

1,210 

638 

431 

350 

396 

1,070

3,120

Bininun

377 

707 

1,500

00

772 

761 

661 

0 

0 

0 

0 

0 

0

o

Mean

1,167 

1,402 

2,268

1,OO5

1,498 

1,596 

1,166 

633 

340 

1OO 

16O 

184 

315

9OO

Runoff 

in 

aore-feet

71,780 

83,440 

139,500

727,900

92,140 

88,650 

71,700 

37,680 

20,910 

5,96O 

9,870 

11,320 

18,720

651,700

Change In 

contents In 

Lake Cushman 

Reservoir 

(acre-feet)

-74O 

+2,92O 

-41O

+6,770

-26,63O 

+7,940 

-41,460 

+10,700 

+28,360 

+29,410 

+5,850 

-4,740 

-6,480

+4,720

Adjusted for change In 

reservoir contents

Runoff 

in

aore-feet

71,040 

86,360 

139,100

734,700

65,510 

96,590 

30,240 

48,380 

49,270 

35,370 

15,720 

6,580 

12,240

656,400

tischarge in 

seoond-feet

(lean

1,155 

1,451 

2,262

1,015

1,065 

1,739 

492 

813 

801 

594 

256 

107 

206

907

Per 

square 

nile

12.3 

15.5 

24.1

1O.8

11.4 

18.6 

5.25 

8.68 

8.55 

6.34 

2.73 

1.14 

2.20

9.68

Runoff 

in 

inches

14.22 

17.28 

27.83

147.02

13.11 

19.33 

6.05 

9. 68 

9.86 

7.08 

3.15 

1.32 

2.45

131.36
SKOKOMISH RIVER BASIN 45

Deer Meadow Creek near Hoodsport, Wash.

Location.--Lat 47°25'00", long. 123°13'30", In NW£ sec. 8, T. 22 N., R. 4 ¥., on left bank 

a quarter of a mile upstream from mouth and 4 miles west of Hoodsport.

Drainage area. 0.28 sq mi.

Records available. August 1950 to August 1951 (destroyed by high water from t lasting 

beaver dam upstream on Oct. 4, 1951).

gage. Water-stage recorder. Elevation of gage is 690 ft (from topographic map).

Extremes.--Maximum discharge during period, 60 cfs Feb. 9, 1951 (gage height, 2.00 ft); 

minimum, 0.5 cfs Aug. 27, Sept. 7, 1950. Discharge on Oct. 4, 1951 (when gage was destroyed by blasting beaver dam upstream), probably greater than that of Fet. 9, 1951.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No diversion or regulation.

Rating table, Aug. 17, 1950, to Aug. 31, 1951 (gage height. In 

feet, and discharge, In cubic feet per second)

0.85 

.9

1.0

1.1 

l.Z

1.4 

2.3 

3.8

1.3 

1.5 

1.7 

1.9

6.0 

13.5

Discharge, In cubic feet per second, 1950-51

Day

1 

2 

3 

4 

5 

6 

7 

8

Ac-f1

Aug. Sept.

0,1 

.6 

.6 

.7 

.7 

.7 

.6 

.7

Day

9 

10 

11 

12 

13 

14 

15 

16

Aug.

-

Sept.

0.7 

.8 

.8 

.7 

.7 

.6 

.6 

.6

Day

17 

18 

19 

20 

21 

22 

23 

24

Aug.

1.0 

.8 

1.0 

.9 

.7 

.7 

1.0 

.9

Sept.

0.7 

.6 

.6 

.6 

*.6 

.7 

.6 

1.1

Day

25 

26 

27 

28 

29 

30 

31

Aug.

0 7 

7

6

6 

7 

7

'

_

_

-

Sept.

1.3 

*1 2 

9 

8 

8 

8

44

Discharge measurement made on this day. 

1950-51

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

0.7

.7

.8

1.2

2.0

1.7

2.3

2.4

6.6

4.5

3.4

3.0

2.6

2.3

2.1

2.3

3.9

3.8

3.4

5.1

a2.9

a2.7

aZ.6

a3.5

a5.0 

a7.0

a8.O

a7.0

a6.0

aS.O

105.5

3.40

12.1

14.01

209

Nov.

6.6

6.6

5.7

5.5

4.5

4.3

*3.8

5.4

3.6

3.6

3.4

3.3

3.1

4.7

5.0

5.0

4.1

4.1

5.7

12

12.5

11

9.6

17.5

*14 

11

9.2

7.8

10.5

-

205.2

6.84

24.4

27.25

407

Dec.

8.1

7.8

7.2

6.9

7.5

9.6

8.1

12.5

12.5

*9.6

7.8

6.9

7.2

8.8

12.5

14

10.5

10

11.5

12.5

11.5

12.5

13

11

9.2

8.5

8.5

7.5

6.5

298.3

9.62

34.4

39.62

592

Calendar year : Max

Jan.

6.5

8.8

7.8

7.5

6.6

6.0

5.5

5.5

5.7

5.5

6.0

5.7

8.5

13

12.5

8.8

8.1

6.6

7.8

7.8

7.2

7.2

14

24

8.5

a7.0

a6.0

*5.2

5.0

252.6

8.15

29.1

35.55

501

Feb.

5.5

6.9

6.5

6.0

5.5

5.5

19

46

*57

20

14

11

9.2

7.8

6.9

6.6

5.5

6.6

6.5

*5.7

5.5

5.2

5.0

4.5

4.3

3^9

-

-

279.6

9.99

35.7

37.14

555

Mln

Mar.

3.6

3.6

3.9

5.6

3.4

3.4

3.3

3.1

2.7

3.0

4.1

5.8

3.8

5.0

5.5

5.0

4.1

3.9

5.9

4.1

4.1

3.8

*3.6

3.8

3.5

5.0

3.9

4.1

3.4

116.8

3.77

13.5

15.51

232

Mean

Apr.

3.3

5.3

3.1

3.1

3.0

2.8

2.8

2.6

2.6

2.3

2.3

2.2

2.2

5.8

2.3

1. 5

2.1

2.0

1.9

2.0

2.1

1.9

1.9

1.9

*3.0

5.3

2.6

2.2

-

74.5

2.48

8.86

9.90

148

May

2.1

2.2

2.1

2.3

2.3

2.2

2.0

1.9

1.9

2.1

2.0

1.9

1.7

1.8

1.7

1.7

1.6

1.6

1.6

1.5

1.4

1.7

1.9

1.6

i's

TT4

1.5

1.4

1.4

55.5

1.78

6.56

7.35

110

Cfsm

June

1.5

1.4

1.1

1.2

1.4

1*5

1.4

1.4

1.2

1.5

 1.4

1.4

1.2

1.1

1.2

1.1

1.1

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

-

55.7

1.19

4.25

4.74

71

July

1.0

.9

.9

.9

.9

.9

1.0 

.9

.0

.0

.0

.0

.0

1.0

.9

1.0

.9

*.9

.9

-.j)

.9

.9

.8

.8

.8

'.3

.9

.8

.8

.9

28.1

0.91

3.25

3.75

56

Aug.

0.8

.1!

.8

.8

.9

.9 

.9

.8

.8

.8

.8

.8

.8

.8

.8

jj_

.7

.8

.8

.8

.8

.8

*.8

a. 8

a. 8

a. 8

a. 9

a. 8

a. 8

a. 8

25.1

0.81

2.89

3.33

50

Sept.

In. AC-f 1;

Water year : Max Mln Mean Cfsm In. Ac-ft

Peak dlscharKe (base, 20 cfs). No\

(1.66 ft); Jan. 25 (7 a.m.) 34 cfs (1

. 21 (9 p.m.) 20 cfs (1.67 ft); Nov. 25 (8:30 a.m.) 21 cfs 

.81 ft); Feb. 9 (8:30 a.m.) 60 cfs (2.00 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for

stations on nearby streams.
46 SKOKOMISH RIVER BASIN

Dow Creek near Hoodsport, Wash.

Location. Lat 47°24'40", long. 123°11'15", in E| sec. 9, T. 22 N., R. 4 W., on left bank 

1 mile upstream from mouth and 2-J- miles west of Hoodsport.

Drainage area.--1.67 sq mi.

Records available.--August 1950 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 600 ft (from topographic map).

Extremes.--Maximum discharge during period, 543 cfs Feb. 9 (gage height, 2.72 ft); minimum, 0.02 cfs Sept. 14, 15, 16, 20, 21; minimum gage height, 0.52 ft Oct. 1, 2.

Remarks.--Records fair except those for period of no gage-height record, which are poor. 

No regulation. City of Tacoma diverts about one third of a cubic foot per second for 

use of Cushman powerplant operators' village.

Rating table, Aug. 17, 1950, to Sept. 30, 1951 (gage height. 

In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Aug. 17 to Feb. 9)

1.1 0.02

1.2 .6

1.3 1.6

1.4 3.6

1.5 6.6

1.6 11.5

1.7 19.5

1.8 31

2.0 

2.2 

2.4 

2.7

120

210

400

Discharge, In cubic feet per second, 1950-51 

1950

Day

1

2 

3 

4

5 

6 

7 

8

Ac-f

Aug.

:

b.... ..

Sept.

0.2 

.2 

.2 

.2 

.2 

.2 

.2 

.2

Day

9 

10 

11 

12 

13 

14 

15 

16

Aug.

:

Sept.

0.2 

.2 

.2 

.3 

.2 

.2 

.2 

.2

Day

17 

18 

19 

20 

21 

23 

23 

24

Jlug0.2 

.3 

.4 

.4 

.3 

.4 

.6 

.5

Sept.

0.2

.a

!i ».l 

.1

.3 

-L&

Day

25 

26 

27 

28 

29 

30 

31

Aug. Sept .

0.4 0.6 

.3 ».3 

.3 .2 

.4 .1 

.3 .1 

.3 .1 

.3

12

Discharge measurement made on this day.

Day

1 

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

30

21

22

23

24

35

26

27

28

29

30

31

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

14

'.Z

.4

.7

.6

3.4

2.3

2.3 

23

5.0

2.3

1.5

1.1

.8

.7

.7

3.1

5.3

4.1

2.9

2.1

1.8

1.6

3.1

4.4

9.6

 19.5

17

11. E

9.6

140.6

4.54

2.72

3.14

279

Nov.

17 

13

8.5

6.9

5.6

5.0

3.9

3.4

2.7 

2.5

2.3

1.9

1.9

TT?

5.9

5.6

4.7

4.4

8.5

24

40

29

43

136

»72

38

26

18.5

21

-

557.7

16.6

11.1

12.42

1.11C

Dec.

18 

15

13

10

12.5

31

29

21

40

»30

16.5

11

10

18.5

28

38

24

18

28

30

38

30

31

25

17

15.5

15.5

12.5

10

8.5

682.5

22.0

13.2

15.20

1,350

Jan.

7.2 

8.5

8.0

6.9

5.6

5.6

5.0

4.4

5731

6.6

6.6

10

11.5

36

21

17

11

8.5

7.6

10

9.6

a9

a30

a.80

a45

a28

a22

al9

15

»13

467.0

15.1

9.04

10.40

926

Feb.

12.5 

18

17

16.5-

14

15

48

138

344 

133

68

46

37

31

28

23

22

18.5

18.5

13

 14

12.5

11.5

11

9.6

9.0

8.0

-

-

-

1,133.2

40.5

24.3

25.24

2,250

Mar.

7.2 

6.6

6.3

5.9

5.6

5.3

5.0

4.7

Id:

4.4

4.4

8.0

8.5

»8.5

16.5

15

12.5

10

10

11.5

13

11.5

10

9.6

9.0

8.5

8.0

7.6

9.0

9.6

9.0

265.1

8.55

5.12

5.90

526

Apr.

eto

7.6

7.2

6.9

6.3

5.9

5.6

5.3 

5.0

4.7

4.7

4.4

4.1

4.1

3.9

3.6

3.4

3.4

3.4

3.4

3.1

3.1

2.7

2.7

2.5

»3.6

4.7

2.9

g, 3

-

137.0

4.57

2.74

3.05

272

May

H1.9

1.9

1.8

1.9

1.9

1.8

1.9

.1.8

1.9

1.9

1.8

1.8

1.6

1.8

1.8

1.6

1.5

1.5

1.4

1.4

1.5

1.8

1.5

1.4

1.4

1.4

lil

1.2

1.2

51.9

1.67

1.00

1.16

103

June

fcf

1.2

1.2

1.2

1.1

1.1

1.1

1.1 

1.1

1.0

 1.0

.9

.8

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

75

.5

.5

"

24.7

0.82

0.491

0.55

49

July

0,5

'.4

.4

.4

.4

.4

.3

.3 

.3

.3

.3

.3

.3

.2

.2

.2

*. 2

.2

.2

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

7.5

0.24

0.144

0.17

15

Aug.

oa

. i

.1

.il

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.l

.1

.1

.1

.1

.2

.1

.1

.1

3.4

0.11

0.066

0.08

6.7

Sept.

04

. l

.1

.1

.1

.3

.1

.1 

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.5

1.2

id:

6.1

0.20

0.120

0.14

12

Calendar year 1950: Max - Mln - Mean - Cfsm - In. - Ac-ft - 

water year 1950-51: Max 344 Mln 0.1 Mean 9.53 Cfsm 5.71 In. 77.45 Ac-ft 6,900

(2.72 Peak ft)T discharge (base. 250 cfs). Nov. 25 (10:30 a.m.) 252 cfs (2.17 ft); Feb. 9 (7 a.m.) 543 efs 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stag"; and records for 

stations on nearby streams.
SKOKOMISH RIVER BASIN 4?

MoTaggart Creek near Hoodsport, Wash.

Location. Lat 47°24'50", long. 123°14'25", in N£ sec. 7, T. 22 N., R. 4 ¥., en left bank 

three-quarters of a mile upstream from mouth and 4^ miles west of Hoodsport.

Drainage area.--1.29 sq mi.

Records available.--August 1950 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 770 ft (from topographic map).

Extremes.--Maximum discharge during period, 170 cfs Feb. 9 (gage height, 4.04 ft); no flow 

 Aug. 17 to Oct. 6, 1950, June 13 to Sept. 28, 1951.

Remarks.--Records fair. No diversion or regulation. Station established Aug. 17, 1950; 

there was no flow during the remainder of the water year 1950.

Rating table, Aug. 17, 1950, to Sept. 30, 1951 (gage height,

In feet, and discharge, in cubic feet per second)

(Shifting-control method used Oct. 1-15, 30, Nov. 1,

8-24, Feb. 10 to Mar. llj

1.0 

1.2 

1.4 

1.6

0

.6 

2.3 

5.2

1.8 

2.0 

2.3 

2.6

9.3 

14.5

3.0 

3.5 

4.0

62

103

157

Discharge, in cubic feet per second, water year October 1950 to September if51

Day

1

2

3

4

5

g

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

0

0

0

0

0

0

1.6

.7

.8

5.8

2.4

1.4

1.0

.7

.5

&. 5

a. 5

al.5

a3.5

a2.8

a2.3

a2.1

al.9

al.7 

a2.3

a3.0

aS.O

a7.8

a7.0

5.8

34.8

67.4

2,17

1.68

1.94

134

Nov.

6.7

a6.0

a5.4

a4.8

a4.2

a3.9

a3.7

 3.6

3.5

3.3

3.1

3.0

2.8

2^6

2.8

3.6

3.5

3.2

3.2

4.7

10.5

15

15

20 

45

*38

29

24

19

19

-

312.1

10.4

8.06

9.00

619

Dec.

16

14

13.5

12.5

13.5

22

19.5

17

26

28

 23

19

16

14.5

18

23

27

21

20

23

25

25

26

27 

25

21

20

20

18.5

16.5

14.5

625.0

20.2

15.7

18.02

1,240

Jan.

13

15

13.5

12

11

10

9.6

8.9

8.6

9.3

10.5

9.8

13

14

25

20

16.5

14.5

12.5

12

12.5

11

10.5

19 

44

33

23

18

15.5

 13.5

12.5

471.2

15.2

11.8

13.58

935

Feb.

12

14

13

12

11.5

11.5

23

54

m106

56

36

29

23

18

15.5

14

12.5

12

11.5

 9.8

9.3

8.4

8.2 

7.3

6.9

6.3

6^

_

-

677.7

24.2

18.8

19.54

1,340

Mar.

5.8

5.4

5.2

5.0

4.9

4.6

4.2

4.1

4.1

3^8

3.8

4.6

4.2

4.1

6^2

5.8

5.0

4.9

4.7

4.7

5.4

5.2

5.0

»4.9 

4.7

4.6

4.4

4.2

4.7

4.9

4.6

147.7

4.76

3.69

4.26

293

Apr.

4*1

4.2

4.1

3.9

3.6

3.5

3.3

3.2

3.0

2.7

2.7

2.6

2.4

2.2

2.1

2.0

1.9

1.8

1.7

1.6

1.5

1.4

1.4

1*2 

1.2

 1.2

2.0

2.2

1.6

1.4

-

72.0

2.40

1.86

2.08

143

May

-4.2

.2

.2

.2

.2

.2

.1

.0

.0

.0

» .0

.9

.9

.8

_j_

25.2

0.81

0.628

0.73

50

June

0^3

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

0

0

0

0

0

*0

0

0

0

0

0

0 

0

0

0

0

0

0

-

2.3

0.08

0.062

0.07

4.6

July

0

0

0

0

0

Aug.

(* )

0

0

0

0

0

Sept.

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

i*g

.2

-

1.2

0.04

0.031

0.03

2.4

Calendar year 1950: Max - Mln - Mean - Cfsm - In. - Ac-ft -

Water year 1950-51: Max 131 Mln 0 Mean 6.58 Cfsm 5.10 In. 69.25 Ac-ft 4,760

Peak discharge (base. 50 cfs'). Nov. 25 (12:30 p.m.) 65 cfs (3.04 ft); Jan. 25 (l to 3 p.m.) 56 

cfs (2.91 ft); Feb. 9 (4:30 a.m.) 170 cfs (4.04 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

stations on nearby streams.
48 SKOKOMISH RIVER BASIN 

North Fork Skokomish River near Potlatoh, Wash.

Location (revised).--Lat 47°19'40", long. 123°14'30", in NW£ sec. 7, T. 21 N., R. 4 ¥., 

on left bank 1 mile upstream from mouth, 6 miles southwest of Potlatch, and 7 miles 

downstream from city of Tacoma's Cushman Dam No. 2.

Drainage area. 117 sq mi, includes 99 sq mi above Cushman Dam No. 2 which is normally 

noncontributing.

Records available. March 1944 to September 1951.

Gage. Water-stage recorder. Datum of gage is 63.49 ft above mean sea level (levels by 

city of Tacoma). Prior to Nov. 27, 1949 (destroyed by flood of Nov. 27, 1949) and 

Mar. 18 to May 9, 1950, water-stage recorder at site 200 ft downstream at present datum.

Average discharge. 6 years (1944-49, 1950-51), 131 cfs.

Extremes. Maximum discharge during year, 3,280 cfs Feb. 10 (gage height, 8.64 ft), minimum, 1.3 cfs Sept. 5, 14, 16.

1944-51: Maximum discharge, 4,800 cfs about Nov. 27, 1949 (gage height, 9.66 ft, 

from high-watermark); minimum recorded, that of Sept. 5, 14, 16, 1951.

Remarks. Records good except those for period of shifting control, which are fair. In 

normal years practically entire flow of river is diverted at Cushman Dam No. 2.

Rating table, water year 1950-51, except period of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

2.0 

2.2 

2.5 

2.S 

3.2

1.0 

5.8

57

125

3.6 

4.0 

4.5 

5.0 

5.5

225

357

561

790

1,070

6.0 

7.0 

8.1

1,370

2,050

2,880

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

4410.5

16.5

31

27

67

46

44

522

1,040

1.150

1,130

599

415

427

164

92

105

125

77

61

56

55

63

73

121

208

200

169

164

7,255.4

234

14,390

Nov.

200 

174

145

123

103

91

77

64

 60

56

53

50

47

46

63

119

174

123

100

174

427

605

407

448

824

650

607

1.100

960

1,100

-

9,170

306

18, 190

Dec.

1,060 

1,040

1,130

658

187

576

1,080

1,070

1,460

1,640

1,150

1,120

1,010

1,010

*1,190

1,210

1,430

1,220

998

1,290

1,770

2.050

1,990

1,740

1,700

1,730

1,600

1,520

1,190

1,100

1,210

39,129

1,262

77,610

Jan.

,120 

,120

,160

,080

,030

973

1,070

512

531

474

366

394

478

438

678

786

722

628

532

416

506

660

608

654

1,200

1.260

718

578

714

653

648

22,707

732

45,040

Feb.

642 

682

705

566

 567

226

453

924

2,440

*2.850

2,460

1,980

1,690

1,310

1,240

1,160

1,200

1,240

1,140

1,270

804

678

701

166

127

107

101

92

_

-

-

27,501

982

54,550

Mar.

85 

85

89

77

146

132

150

144

150

93

136

250

»255

196

342

318

210

145

230

174

230

250

202

100

79

191

178

94

93

100

84

5,008

162

9,930

Apr.

73 

67

65

61

58

55

52

51

49

46

44

43

43

44

40

38

37

36

36

34

32

31

30

*28

27.

27

39

6847'

40

-

1,341

44.7

2,660

Calendar year 1950: Max - Mln - Mean -

May

38 

35

34

35

33

33

33

31

29

28

30

28

27

26

25

24

24

22

22

21

20

20

22

27

23

21

20

18.5

18.5

17.5

11

802.5

25.9

1,590

June

16.5 

T575

15

15

16.5

15.5

15

14.5

13

12.5

12.5

14.5

*12.5

11

10.5

9.6

8.4

7.9

6.2

5.8

5.8

6.2

5.1

5.4

6.2

5.8

5.8

5.1

4.7

4.7

-

302.7

10.1

600

July

5.

: T

*

-=-

164.4

5.30

326

Aug.

3.3 

3.6

3.6

3.6

3.3

3.0

3.0

3.0

3.3

3.6

3.6

3.6

3.6

3.0

3.0

2.8

2.6

2.6

2.3

2.1

1.9 I'.S

1.9

1.9

1.9

2.1

2.1

3.0

2.8

3.0

2.8

87.8

2.83

174

Sept.

2.6 

2.6

2.1

1.6

 1.6

1.9

5.1

5.4

3.6

2.8

2.3

2.1

1.7

1^4 its"

1.6

1.9

2.1

2.1

1.7

1.6

1.7

1.9

1.7

2.6

1.4

1.6

9.0

34

46

149.3

4.98

296

Ac-ft -

Water year 1950-51: Max 2,830 Mln 1.4 Mean 311 Ac-ft 225,400

* Discharge measurement made on this day.

Note.--ShlftIng-control method used Nov. 8 to Dec. 20.
SKOKOMISH RIVER BASIN 49

South Pork Skokomish River near Potlatch, Wash.

Location.--Lat 47°24', long. 123°18', in NW$ sec. 22, T. 22 N., R. 5 W., on right bank 

at head of canyon, 2 miles downstream from Brown Creek and 1\ miles west of Potlatch.

Drainage area.--65.6 sq mi (revised).

Records available. October 1923 to September 1932, September 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 456 ft (by barometer).

Average discharge. 14 years, 560 cfs (13 years, 545 cfs).

Extremes. 1949-50: Maximum discharge during water year, 16,500 cfs Nov. 26 (gage height, 

17.75 ft), from rating curve extended above 5,600 cfs on basis of logarithmic plotting; 

minimum not determined, occurred sometime during period of no gage-height record In 

September.

1950-51: Maximum discharge during water year, 11,500 cfs Feb. 9 (gage height, 13.30 

ft), from rating curve extended above 5,600 efs on basis of logarithmic plotting; minimum, 64 cfs Sept. 21-24 (gage height, 0.93 ft).

1923-32, 1946-51: Maximum discharge, that of Nov. 26, 1949; minimum, 38 cfs Sept. 

15, 1926.

Remarks. Records excellent except those for periods of shifting control, which are good 

for 1951 water year and fair for 1950 water year, and those for periods of no gageheight record, which are poor. No diversion or regulation.

Rating tables, October 1949 to September 1951, except periods of shifting 

control (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1, 1949, to Oct. 10, 1950

1.2 89

1.4 117

1.7 163

2.0 217

2.3 280

2.6 355

3.0 485

Oct. 10, 1950, to Sept. 3O, 1951

3.5

4.0

5.0

6.0

7.0

9.0

11.0

icharge,

695

945

1,560

2,350

3,250

5,330

7,680

In cubic feet per

1949-50

0.9

1.1

1.4

1.7

2.0

2.3

2.6

3.0

second

60

85

130

184

244

310

390

530

, 194

3.5

4.0

5.0

6.0

7.0

8.0

10.0

12.0

760

1,020

1,700

2,540

3,500

4,500

6,900

9,700

Day

1

2

3

4

5

6

7

8

9

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.

Ac-ft

Oct.

107

102

100

T57

219

17S

155

140

301

313

422

326

267 

225

215

194

187

170

158

149

141

134

128

133

120

122

147

HlfSol

370

*285

7,466

241

3.67

4.23

14,810

Nov.

243

215

194

180

170

160

153

555

1,010

870

2,800

2,290

2,060 

1,860

1,180

885

731

628

541

468

426

1,010

1,180

1,210

2,240

7.630

7,440

2,990 

2,090

1,690

-

44,840

1,495

22.8

25.42

88,940

Dec.

4,350

3,560

*1,840

1,360

1,260

1,120

962

845

750

668

597

553

505 

482

482

460

464

422

390

367

361

4T5

1,010

1,040

950

912

3,390

6.340 

3 , 655

1,870

1,340

42,693

1,377

21.0

24.20

84,680

Jan.

1,110

918

820

736

677

650

589

541

513

513

457

426

415 

381

375

353

336

328

455

2,430

3.660

574§5

1,380

1,010

800

690

581

513 

470

420

400

25,300

816

12.4

14.34

50,180

Feb.

370

350

330

350

375

553

482

464

409

409

400

436

810 

855

2,760

3,130

1,310

1,100

1,070

934

*855

1,010

1,070

1,610

3,140

5^000

1^220

_

-

31,732

1,133

17.3

17.99

62,940

Mar.

962

950

3,080

3.270

2,570

1,890

1,350

1,110

984

850

760

682

605 

557

573

973

1,480

1,360

1,310

1,130

978

945

918

956

840

760

780

722 

628

565

541

35,079

1,132

17.3

19.89

69,580

Apr.

708

718

641

573

569

623

585

537

505

497

632

1,310

1,130 

984

1,680

3.040

2,030

1,350

1,030

1,060

1,020

880

765

686

*614

581

561

533 

533

573

-

25,848

862

13.1

14.65

51,270

May

650

646

593

565

557

521

485

497

541

610

800

1,070

1.090 

TTJlO

923

825

790

695

628

618

664

708

628

577

*623

775

840

740 

641

610

614

21,534

695

10.6

12.21

42,710

June

713

731

760

775

740

605

533

541

561

614

677

726

650 

589

569

672

1§5

690

682

677

597

525

509

446

406

378

455

446 

501

482

-

17,986

600

9.15

10.30

35,670

July

464

455

409

406

393

370

 336

342

344

294

267

254

256 

256

241

231

221

219

219

211

200

200

198

196

185

180

177

219 

184

168

166

8,232

266

4.05

4.67

16,330

Aug.

165

170

165

160

160

155

155

155

150

145

140

140

140 

160

*Zi3_

332

237

191

170

160

155

150

172

235

184

165

160

150 

145

140

135

5,754

186

2.84

3.36

11,410

Sept.

135

130

130

125

130

125

120

115

120

115

110

110

105 

105

100

100

95

100

105

95

90

90

90

110

150

208

T85

*130 

117

110

-

3,525

118

1.80

3.00

6,990

Calendar year 1949: Max 7,630 Mln 79 Mean 626 Cfsm 9.54 In. 129.55 Ac-ft 453,200

Water year 1949-50: Max 7,630 Mln 90 Mean 740 Cfsm 11.3 In. 153.06 Ac-ft 535,500

Peak discharge (base. 3.800 cfs). Nov. 26 (10:30 p.m.) 16,500 cfs (17.75 ft); Dec. 1 (9 p.m.)

7,850 cfs (11.14 ft) Dec. 28 (2:30 p.m.) 7,700 cfs (11.03 ft); Jan. 21 (3:30 a.m.) 5,000 cfs (8.70

5,750 cfs (9.38 ft).

* Discharge measurement made on this day.

Note. No gage-height record Jan. 29 to Feb. 4, Aug. 2-14, 20-22, Aug. 27 to Sept. 25, Sept. 37; 

discharge estimated on basis of records for station near Union. Shifting-control nettio-l used Oct 1 

to Nov. 25, Nov. 28 to Jan. 20, Sept. 28-30.
50 SKOKOMISH RIVER BASIN

Discharge, In cubic feet per second, of South Pork Skokomlsh River near 

Potlateh, Wash., 1949-51 Continued

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

26

29

30

31

Ibtal

Mean

Cfsn

In.

Ao-ft

Oct.

106

102

TI5

193

825

740

1,410

1,480

1,160 

5.230

1,320

640

615

494

420

375

352

671

1,070

850

620

496

424

396

1,140

1,210

1,900

2,190

 1,740

1,330

1,170

29,201

942

14.4

16.55

57,920

Nov.

1,380

1,200

1,200

1,040

868

755

642

550

483 

430

399

369

342

325

345

366

363

338

315

355

1,360

2,360

1,740

2,530

4.560

3,610

2,660

2,150

1,480

1,240

-

36,190

1,206

16.4

20.52

71,780

Dec.

1,040

668

845

362

1,010

2,240

1,660

1,470

2,900 

5.560

2,060

1,560

1,160

 1,060

1,920

2,100

2,370

1,470

1,510

2,560

2,770

2,460

2,360

3,070

2,300

1,620

1,700

1,720

1,460

1,680

1,240

56,665

1,835

26.0

32.25

112,600

Jan.

1,050

1,150

1,260

1,040

696

795

725

665

m

693

620

1,360

1,410

2,040

1,560

1,190

966

830

750

775

715

665

1,700

5.630

3,000

1,640

1,220

1,020

698

805

37,100

1,197

16.2

21.03

73,590

Feb.

760

1,010

1,210

1,070

920

645

2,160

4,360

9.020 

8,280

3,600

1,960

1,500

1,250

1,150

1,030

946

950

610

760

710

656

 602

570

530

494

469

iii

_

-

46,066

1,717

26.2

27.26

95,360

Mar.

420

399

390

361

356

345

336

322

310 

303

303

361

436

427

755

745

574

490

456

516

602

592

526

463

490

516

502

472

642

336" 760

14,896

461

7.33

6.45

£9,550

Apr.

606

615

740

635

780

740

760

700

626 

574

564

750

850

775

730

745

775

695

606

526

476

436

414

4U

Il7

 434

579

1.140

770

592

-

19,685

656

10.0

11.16

39,040

May

510

458

430

514

592

556

570

510

466 

530

602

550

456

420

405

455

463

424

384

375

390

434

574

5*6" 735

463

427

390

358

335

316

14,804

476

7.29

6.39

29,360

June

315

316

330

320

310

297

266

281

279 

261

266

264

 275

277

266

275

264

246

242

230

224

222

220

216

206

202

196

190

166

162

7,730

258

3.93

4.36

15,330

July

160

T75

175

166

166

166

161

152

146 

143

141

137

135

134

132

130

 128

126

122

121

116

115

114

114

114

112

110

106

104

103

102

4,154

134

2.04

2.35

8,240

Aug.

98

g§

96

97

96

92

91

91

90 

90

90

86

66

66

65

84

82

81

81

78

76

77

 77

75

75

73

75

61

61

61

77

2,634

65.0

1.30

1.49

5,220

Sept.

76

75

72

72

71

71

102

108

86 

76

73

72

72

71

70

66

67

67

67

66

65

64

34

67

62

75

75

226

1,230

1.240

-

4,694

156

2.38

2.66

9,310

Calendar year 1950: Max 5,000 Mln 90 Mean 614 Cfsn 12.4 In. 166.53 Ac-ft 569,600

Water year 1950-51: Max 9,020 Mln 64 Mean 756 Cfsm 11.5 In. 156.49 Ao-ft 547,500

Peak discharge (base. 

ofs (10.20 ft); Dec. 9 (I

.800 cfsl.--0ct. 10 (5:20 a.m.) 4,960 cfs (6.20 ft); Mov. 25 (4 p.m.) 7,180 

p.m.) 6,000 ofs (9.25 ft); Dec. 20 (8 p.m.) 4,100 ofs (7.60 ft); Dec. 24

(4 p.m.) 3,640 ofs (7.34 ft); Jan. 25 (10 p.m.) 5,280 ofs (6.65 ft); Feb. 9 (7:3C a.m.) 11,500 ofs 

(13.30 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Oct. 1-10, Sept. 30.
SKOKOMISH RIVER BASIN 51

South Pork Skokomish River near Union, Wash.

Location. Lat 47°20 I 30", long. 123°16i30", in NE£ sec. 2, T. 21 N., R. 5 W., on right 

bank 2^ miles upstream from confluence with North Fork and Vance Creek and 8 miles 

west of Union.

Drainage area. 79.6 sq mi (revised).

Records available. August 1931 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 110 ft (by barometer). Prior to Sept. 

~i9, 1931, staff gage at same site at datum 2.32 ft higher.

Average discharge. 20 years, 681 cfs.

Extremes.--Maximum discharge during year, 12,300 cfs Feb. 9 (gage height, 9.02 ft), from 

rating curve extended above 4,400 cfs by logarithmic plotting; minimum, 70 cfs Sept. 

20-24 (gage height, 2.86 ft).

1931-51: Maximum discharge, 21,600 cfs Jan. 22, 1935, Nov. 26, 1949 (gage height, 

11.0 ft), from rating curves extended above 11,000 cfs and 4,400 cfs, respectively; 

minimum, 62 cfs Sept. 18, 1938.

Revisions: The maximum discharge for water year 1950 has been revised to 21,600 cfs 

Nov. 26, 1949 (gage height, 11.0 ft), from rating curve extended above 4,400 cfs by 

logarithmic plotting; superseding figure published in Water-Supply Paper 1182.

Remarks.--Records good. No diversion or regulation.

Revisions. Revised figures of discharge in cubic feet per second for high-water periods 

in the water year 1950, superseding those published in Water-Supply Paper 1182, are 

given herein:

Dec. 27..... 4,030

28..... 7,870

29..... 4,810

Jan. 21..... 4,590

Feb. 15..... 2,960

25..... 3,32-0

26..... 5,8fO 

Mar. 3..... 3,3^

Oct. 28..... 1,240

Nov. 26..... 7,920

27. .... 8,110

Dec. 1..... 5,030

2..... 4,700

Revised peak discharges. Nov. 26 (11 p.m.) 21,600 cfs; Dec. 1 (1O p.m.) 

8,460 cfs; Dec. 28 (2 p.m.) 9,08O cfs; Feb. 26 (3 a.m.) 8,770 cfsj Mar. 3 

(11:30 p.m.) 6,620 cfs.

Month

December .........................

Calendar year 1949 .............

March. ...........................

Water year 1949-50. ............

Cfs-days

62,297

273,165

42,635

331,379

Maximum

7,870

8,110

3,980

8,110

Minimum

729

^ 85

675

106

Mean

2,010

748

1,375

908

Per 

square

mile

25.3

9.40

17.3

11.4

Runcff 

ir 

inches

29.11

127.63

19.92

154.85

Runoff 

in 

acre-feet

123,600

541,900

84,570

657,400

Rating tables, October 1949 to September 1951 (gage height, in feet,

and discharge, in cubic feet per second)

(Shifting-control method used Nov. 3O, Dec. 4-27, Dec. 31, 1949, 

to Jan. 20, 1950, Jan. 23 to Feb. 15, Aug. 23 to Oct. 4, 

1950, Nov. 22-25, 1950, Sept. 28-3O, 1951)

Oct. 1, 1949, to Nov. 25, 1950 Nov. 26, 1950, to Sept. 3O, 1951

3.3 89 5.5 1,900 2.8 58 5.O 1,550

3.6 171 6.0 2,630 3.1 130 5.5 2,260

4.0 351 7.0 4,380 3.6 3OO 6.O 3,20O

4.5 710 8.0 6,750 4.0 550 7.O 5.6OO

5.0 1,250 9.0 9,730 4.5 990 8.4 1O.OOO
52 SKOKOMISH RIVER BASIN

South Fork Skokomish River near Onion, Wash, Continued 

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

3

3

4

5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

20

21

22

23

24

35

36

37

28

39

30

31

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

136

131

»131

159

836

729

1,500

1,530

1,130

5.500

1,400

847

633

523

467

415

403

816

1,060

878

666

560

487

453

1,080

,340

,900

,360

,890

,400

,370

30,389

977

13.3

14.15

60,080

Nov.

1,450

1,370

1,190

1,040

868

758

666

584

»530

494

473

434

433

392

438

467

467

441

409

615

1,500

2,710

3,300

3,130

5.140

4,850

3,600

2,470

1,820

1,560

-

43,378

1,413

17.8

19.80

84,060

Dec.

1,310

l.liO

1.090

1,110

1,310

3,670

3,360

1,810

3,060

4.380

3,360

1,840

*1,490

1,310

3,100

3,430

3,930

1,840

1,770

3,880

3,360

3,800

3,590

3,40O

3,610

1,800

1,830

1,840

1,630

1,730

1,350

66,000

2,139

36.7

30.84

130,900

Jan.

1,140

1,390

1,390

1,170

1,030

940

900

854

837

900

1,010

970

1,410

1,470

3,060

1,690

1,310

1,090

950

890

930

890

845

1,350

4.2'ap

3,620

1,770

1,370

1,040

910

809

41,005

1,323

16.6

19.16

81,330

Feb.

»738

970

1,140

1,030

872

809

2,330

5,140

9.740

9,210

4,400

2,330

1,730

1,410

1,380

1,130

1,040

930

920

872

809

755

703

678

638

606

566

543

_

.

-

53,168

1,899

23.9

24.84

105,500

Mar.

539

493

480

459

431

410

404

386

368

356

356

466

»529

523

827

836

662

566

539

558

638

654

590

543

550

558

550

539

646

782

710

16,916

546

6.86

7.90

33,550

Apr.

654

654

738

837

783

738

737

710

646

606

598

719

837

746

710

719

746

694

623

550

501

466

445

438

 445

445

583

1.100

773

622

-

19,820

661

8.30

9.26

39,310

May

543

494

466

515

590

566

582

529

508

539

590

574

494

453

438

459

501

452

417

398

410

445

558

694

646

480

431

398

363

345

335

15,201

490

6.16

7.10

30,150

June

330

330

335

335

320

310

300

396

292

296

296

296

»392

296

396

392

280

268

256

246

239

232

228

225

222

311

200

194

190

187

8,090

270

3.39

3.78

16,050

July

181

178

175

173

169

169

166

163

160

160

160

157

154

145

136

133

130

130

 137

124

119

110

108

108

105

105

1^5

102

102

103

102

4,257

137

1.73

1.99

8,440

Aug.

103

102

102

102

100

100

97

95

95

90

88

88

88

85

85

83

83

83

80

80

80

80

80

83

80

80

80

83

83

78

80

2,715

87.6

1.10

1.37

5,390

Sept.

80

80

80

»78

78

78

95

102

88

80

78

76

76

74

73

72

72

72

72

20

70

70

70

72

80

76

78

228

1,170

1.290

-

4,777

159

2.00

2.23

9,480

Calendar year 1950: Max 5,880 Mln 131 Mean 956 Cfsm 12.0 In. 163.98 Ac-ft 691,800

Water year 1950-51: Max 9,740 Mln 70 Mean 835 Cfsm 10.5 In. 142.33 Ac-ft 604, 30O

Peak discharge . 

7,320 :ucisf \/.o* (7.54it/; f Jan. co V -IU p.m./ &,**iDischarge measurement made on this day.
SKOKOMISH RIVER BASIN 53

Skokomlsh River near Potlatch, Wash.

Location. Lat 47°19'00", long. 123° 11'OS 11 , in NWiNW£ sec. 15, T. 21 N., R. 4 W., on left

 bank half a mile upstream from U. S. Highway 101, 2.8 miles downstream from confluence 

of North and South Forks, 4.7 miles southwest of Potlatch, and 5.5 miles upstream from 

mouth. Prior to Apr. 19, 1951, on right bank.

Drainage area.--230 sq ml (revised).

Records available.--July 1943 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 19.35 ft above mean sea level, datum of 

^1929, supplementary adjustment of 1947. Prior to May 22, 1947, water-stage recorder 

at same site and datum. May 22 to July 23, 1947, staff gage at site 50 ft downstream 

at present datum. July 24, 1947, to Apr. 18, 1951, water-stage recorder on right bank 

at datum 2.87 ft lower than present datum.

Average discharge. 8 years, 1,170 cfs.

Extremes.--Maximum discharge during year, 19,200 cfs Feb. 10 (gage height, 14.31 ft); min-

 Imum, 156 cfs Sept. 20-23 (gage height, 0.43 ft).

1943-51- Maximum discharge, 19,200 cfs Nov. 27, 1949, Feb. 10, 1951; maximum gage 

height, 14.51 ft Nov. 27, 1949; minimum discharge, 125 cfs Sept. 14-17, 1944 (gage 

height, -0.01 ft).

Remarks. Records fair. In normal years practically entire flow of North Fork is divert-

 ed at dam No. 2 and returned to sea through Cushman powerplant No. 2.

Rating tables, water year 195O-51 (gage height, in feet, and discharge, in 

cubic feet per second)

3.4 

3.7 

4.0 

4.5 

5.0

185 

340 

b20 

890 

1,360

Oct. 1 to Apr. 18

5.5 1,890

6.0 2,470

7.0 3,750

8.0 5,200

9.0 6,830

Apr. 19 to Sept. 3O

10.O 8.7OO

11.0 10,800

12.0 13,300

14.0 18,300

0.4

.7 

1.0 

1.5 

2.0 

2.5

145

270

435

8OO

1,260

1,780

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

210

*200

200

255

842

980

1,910

2,110

1,600

5.140

2,910

2,270

1,930

1,400

1,140

1,040

826

1,130

1,550

1,370

1,090

935

826

762

1,430

1,580

2,780

3,390

2,770

2,180

2,030

48,786

1,574

96,770

Nov.

2,350

2,040

1,890

1,640

1,400

1,220

1,120

998

908

 842

794

730

681

653

702

866

962

882

786

1,O1O

2,510

4,900

3,390

4,660

7.360

6,770

5,340

4,350

3,340

3,100

-

68,194

2,273

135,300

Dec.

2,710

2,480

2,450

2,270

1.920

3,850

4,040

3,520

5,100

7.440

4.6OO

*3,820

3,220

2,900

3,850

4,580

5,700

4,060

3,530

5,160

6,630

6,400

6,120

7,380

6,540

4,620

4,300

4,540

3,650

3,620

3,230

134,230

4,330

266,200

Jan.

2,790

2,990

3,430

2,920

2,580

2,350

2,230

1,770

1.580

1,670

1,80O

1,800

2,650

2,970

3,790

3,710

3,120

2,600

2,220

1,900

2,130

2,230

2,04O

2,670

7,140

7.200

3,920

2,870

2,530

2,220

2,030

87,850

2,834

174,200

Feb.

*1,92O

2,360

2,820

2,470

2,210

1,770

3,750

8,300

17,300

«17.600

10,300

5,990

4,390

3,520

3,130

2,770

2,630

2,530

2,460

2,550

2,070

1,870

1,770

1,330

1,160

1,080

1,030

962

-

-

-

112,042

4,002

222,200

Mar.

926

874

874

858

834

834

818

778

770

730

702

962

,160

* ,120

,550

 8OO

,440

,200

,110

,120

,250

,350

,250

,1OO

,030

,050

,100

,020

,O9O

,400

,270

33,370

1.O76

66,190

Apr.

,16O

,120

,200

,320

,270

,170

,170

,130

,050

989

962

,030

,190

,130

,050

,050

,070

,050

900

820

760

700

680

 680

*68O

700

935

1.520

1,160

935

-

30,581

1,019

60,660

May

820

740

700

780

900

86O

920

800

770

800

900

860

780

720

670

680

760

680

630

580

620

680

820

1.020

980

820 foo

640

590

550

510

23,280

751

46, ISO

June

500

500

510

520

500

46O

448

442

435

429

 435

435

435

435

440

440

430

420

470

390

370

360

362

364

364

364

358

353

342

331

12,642

421

25,080

July

33J,

331

326

320

310

320

315

310

305

300

295

275

270

275

270

*270

270

266

261

252

243

243

243

238

243

243

238

234

234

234

250

8,495

274

16,850

Aug.

230

225

225

220

216

216

216

212

212

212

207

202

202

202

202

198

194

189

189

184

ISO

180

ISO

176

176

180

18O

184

189

184

180

6,142

198

12,180

Sept.

180

180

173

173

*173

170

189

230

216

189

180

180

173

173

170

170

166

162

166

162

159

156

156

170

173

180

180

266

1,050

1.760

-

7,825

261

15,520

Calendar year 1950: Max 10,700 Mln 165 Mean 1,704 Ac-ft 1,233,000

Water year 1950-51: Max 17,600 Mln 156 Mean 1,571 Ac-ft 1,137,000

Peak discharge (base. 8.4OO cfs). --Nov. 25 (6 p.m.) 11,700 cfs (11.36 ftf; Dec. 9 (1. :30 p.m.)

9,660 cfs (10.48 ft); Dec. 20 (12 p.m.) 8,120 cfs (9.71 ft); Dec. 24 (7:30 p.m.) 8,120 cfs (9.71 ft);

Jan. 25 (12 p.m.) 1O,7OO cfs (10.95 ft); Feb. 1O (6 a.m.) 19,200 cfs (14.31 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Apr. 19-26, May 1 to June 6, June 13-24j discharge estinated on basis 

of records for stations on North and South Forks near Potlatch.
54 UNION RIVER BASIN

Union River near Bremerton, Wash.

Location.--Lat 47°31 I 50", long. 122°47 I 00", in Sw£NE£ sec. 34, T. 24 N., R. 1 W., on right 

bank 500 ft upstream from highway bridge, a quarter of a mile upstream from Hazel Creek, 

and 7 miles west of Bremerton.

Drainage area.--3.16 sq mi (revised).

Records available.--October 1945 to September 1951.

Gage. - -Water-stage recorder. Datum of gage is 398.0 ft above mean sea le-'el (by closed 

stadia traverse).

Average discharge.--6 years, 12.4 cfs.

Extremes.--Maximum discharge during year, 378 cfs Feb. 9 (gage height, 3.50 ft); minimum, 

0.3 cfs part of each day Aug. 19-27, Sept. 20-22.

1946-51: Maximum discharge, that of Feb. 9, 1951; maximum gage height, 3.85 ft Feb. 

22, 1949; minimum discharge, 0.3 cfs on many days in August and September 1950 and 

1951.

Remarks.--Records good. No diversion or regulation.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second)

0.3

.6

.8

1.1

1.4

1.7

0.2

1.7

4.0

11.0

24

43

2.0 

2.3 

2.6 

2.9 

3.2

70

106

153

210

279

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

13

13

14 

15

16

17

18

19

20

31

32

23

24 

35

36

27

38

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

0.6 

. 6

 6

.9

1.7

1.4

2.4

3.3

3.0

13

5.9

5.8

5.0

4.5 

3.7

3.3

3.0

4.9

7.0

6.3

6.1

5.4

5.2

5.2

6.1

8.8

14

28

40

38

31

264.7

8.54

2.70

3.12

525

Nov.

30

26

22

19

16

 14

12

10.5

9.3

8.8

7.7

7.2

6.7

6^5 

12.5

42

50

37

27

40

62

54

45

49 

85

79

54

40

30

32

-

934.2

31.1

9.84

10.99

1,850

Dec.

27 

26

37

38

 36

58

60

48

52

55

42

33

26

I

40

58

46

39

48

63

56

69

it

40

32

28

26

30

28

1,321

42.6

13.5

15.55

2,620

Jan.

25 

37

46

36

27

22

18.5

16.5

14

14

14

13

20

22 

49

53

42

32

28

25

47

 46

41

65 

 164

107

56

36

26

21

17

1,180.0

38.1

12.1

13.89

2,340

Feb.

16 

33

36

33

28

26

55

158

269

 151

83

50

35

26 

22

18

17.5

16.5

19

28

26

33

19

17 

14.5

13

11.5

10.5

_

-

1,253.5

44.8

14.2

14.75

2,490

Mar.

10 

9.3

9.0

8.8

7.7

7.2

6.7

6.5

*6.3

sa

6.5

14

22

24 

35

34

26

21

17

14.5

13.5

12.5

11.5

10.5 

10

9.6

9.0

8.2

8.5

10

9.0

403.9

13.0

4.11

4.75

801

Apr.

8.2

7.4

7.0

6.5

6.5

6.3

5.8

5.4

5.2

5.0

4.9

4.7

4.5 

4.3

4.2

4.2

3.8

 3.6

3.4

3.2

2.7

2^

3.7 

3.0

2.9

3.7

5.4

3.8

3.3

-

143.2

4.77

1.51

1.69

284

May

5.

2!

2.

2.

2.

2.

2.

2.

2.

2.

2.

2 .

2 . 

2 .

1.9

1.9

1.9

1.8

1.7

1.7

1.6

T77

1.8 

1.7

1.7

1.7

1.8

1.7

1.6

1.7

66.4

2.14

0.677

0.78

132

June

1.5

1.4

1.4 *ia

1.6

1.5

1.5

1.4

1.3

1.3

1.3

1.4

1.4

1.3 

1.2

1.2

1.1

1.0

1.0

.9

.9

.9

.9

1.0 

.9

.9

.9

^1

.8

.8

-

35.2

1.17

0.370

0.41

70

July

**

.8

.8

.8

.8

.8

.8

.8

.7

*.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

tf

.5

.5

.6

.6

.6

.5

.5

.5

.5

If. 7

0.64

0.203

0.23

39

Aug.

O.

*.

-L

'.e

14.2

0.46

0.146

0.17

28

Sept.

0.5 

.5

.5

.4

.4

.4

.6

.6

.5

.5

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

-Li

.4

.4

.5

.6

.5

.7

1.8

2.3

1*1

19.1

0.64

0.203

0.22

38

Calendar year 1950: Max 216 Mln O.3 Mean 17.1 Cfsm 5.41 In. 73. 4f Ao-ft 12,380

Water year 1950-51: Max 269 Mln 0.3 Mean 15.5 Cfsm 4.91 In.- 66.55 Ao-ft 11,220

Peak discharge (base. 120 cfs). Jan. 25 [8:30 p.m.) 184 cfe (2.77 ft); Feb. 9 (4:3O a.m.) 378 cfs 

(3.50 ft).

* Discharge measurement made on this day.
UNION RIVER BASIN 55

Union River near Belfair, Wash.

Location.--Lat 47°28'20", long. 122°49'40", In NE$ sec. 20, T. 23 N., R. 1 W., on left 

bank at highway bridge 1 mile north of Belfair and 2 miles upstream from mouth.

Drainage area.--19.2 sq ml (revised).

Records available.--July 1947 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 45.6 ft above mean sea level (by closed 

stadia traverse).

Extremes. Maximum discharge during year, 1,230 cfs Feb. 9 (gage height, 6.77 ft); minimum, 17.5 cfs Oct. 1 (gage height, 1.36 ft).

1947-51: Maximum discharge, 1,610 cfs Feb. 22, 1949 (gage height, 7.81 ft), from 

rating curve extended above 600 cfs; minimum, 13 cfs Sept. 29, 1947.

Remarks.--Records fair. City of Bremerton diverts annually about 3,100 acre-ft several 

miles above station for municipal use. The diversion varies from almost nc flow In 

August and September to as much as 10 cfs during the winter months.

Rating tables, water year 1950-51 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Feb. 1O to Mar. 6, 

Aug. 18 to Sept. 30)

Oct. 1 to Feb. 9

1.3 

1.5 

1.7 

2.0 

2.3 

2.6

43

80

125

173

3.0 

3.5 

4.0 

4.5 

5.0 

6.0

240

333

434

543

Feb. 10 to Sept. 30

7 17

0 38

3

125

203

3.5 

4.0 

4.5 

5.0

307

418

536

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ae-ft

Oct.

17.5

18

18

19.5

25

21

26

27

24

70

36

29

26

25

24

23

23

30

38

27

23

22

21

21 

24

32

47

88

104

*98

80

1,107.0

35.7

2,200

Nov.

83

67

54

46

38

35

32

28

26

25

24

23

23

22

36

125

133

96

66

94

149

154

127

155 

256

259

176

131

101

152

-

2,736

91.2

5,430

Dec.

141

110

124

118

*106

181

183

149

167

187

149

118

96

90

124

157

214

155

141

173

214

194

232

192

149

125

125

107

118

104

4,692

151

9,310

Jan.

92

157

168

131

104

88

77

69

64

66

69

88

189

189

179

139

125

112

223

201

*165

214 

*415

364

214

167

141

130

119

4,607

149

9,140

Feb.

114

198

184

167

146

139

223

425

948

*589

346

223

173

142

125

109

114

100

114

146

121

105

95

88 

82

76

71

62

-

-

-

5,430

194

10,770

Mar.

66

61

61

61

58

*58

55

55

54

53

55

105

123

118

159

144

116

98

87

80

77

71

68

66 

67

64

60

59

64

71

63

2,397

77.3

4,750

Apr.

59

56

56

54

54

53

53

52

52

52

50

50

49

49

48

48

*47

46

46

*44

43

44 

43

43

49

59

47

45

-

1,477

49.2

2,930

May

44

43

42

42

41

41

41

41

40

39

40

39

38

38

38

38

37

37

36

36

36

36

36

36 

36

36

35

35

36

35

£4

1,182

38.1

2,340

June

34

33

33

*35

34

33

*33

32

32

32

32

32

32

32

31

30

30

30

29

29

29

29

29

29 

28

28

27

27

27

2J5

-

917

30.6

1,820

July

26

26

27

28

27

28

27

27

27

26

*26

25

25

25

24

24

24

24

24

25

25

25

24

24 

24

24

24

23

24

23

23

778

25.1

1,540

Aug.

23

24

24

24

24

24

23

23

23

24

24

24

24

23

22

22

22

22

22

 21

22

23

22

23 

23

23

24

23

24

25

24

718

23.2

1,420

Sept.

24

24

24

23

23

23

25

24

24

24

24

24

24

23

23

23

23

23

23

22

22

23

23

24 

25

24

26

33

35

35

-

740

24.7

1,470

Calendar year 1950s Max 894 Mln 16.5 Mean 72.5 Ac-ft 52,520

Water year 1950-51: Max 948 Mln 17.5 Mean 73.4 Ac-ft 53,120

Peak discharge (base. 400 efsl. Jan. 25 (11 p.m.) 509 cfs (4.34 ft); Feb. 9 (8 a.m.) 1,230 cfs 

(6.77 ft).

* Discharge measurement made on this day.

288995 O - 54 - 5
56 MISSION CREEK BASIN

Mission Lake near Bremerton, Wash.

Location. Lat 47°32', long. 122°50', In NE^NWi sec. 32, T. 24 N., R. 1 W., on west shore 

300 ft from lake outlet and 9^ miles west of Bremerton.

Drainage area. 1.91 sq ml.

Records available.--June 1945 to September 1951.

Gage.--Water-stage recorder. Datum of gage Is 513.0 ft above mean sea level (by closed 

stadia traverse).

Extremes.--Maximum gage height during year, 4.62 ft Feb. 9; minimum, l.£2 ft Sept. 23, 24. 

1945-51: Maximum gage height, 6.36 ft Feb. 22, 1949; minimum, that of Sept. 23, 24,

Remarks.--Mo diversion or regulation.

Gage height, in feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.77

1.77

1.77

1.81

1.88

1.90

1.95

-

-

-

.

-

-

-

-

.

-

-

-

-

_

-

-

-

-

_

-

-

-

-

-

Nov.

_

2.76

2.74

2.72

2.68

2.66

2.63

2.60

2.57

2.55

2.55

2.53

2.52

2.52

2.61

2.88

3.07

3.08

3.02

3.12

3.39

3.43

3.34

3.33

3.49

3.65

3.53

3.34

3.18

3.22

-

Dec.

3.20

3.13

3.10

3.08

3.05

3.19

3.28

3.23

3.25

3.35

3.29

3.18

3.06

2.98

2.99

3.05

3.22

3.21

3.17

3.20

3.33

3.35

3.39

3.49

3.42

3.28

3.17

3.09

3.02

3.00

2.97

Jan.

2.92

3.00

3.09

3.07

3.00

2.93

2.88

2.83

2.78

2.76

2.76

2.73

2.78

2.81

3.03

3.20

3.23

3.16

3.09

3.03

3.18

3.23

3.18

3.27

3.72

3.90

3.62

3.36

3.16

3.03

2.93

Feb.

2.88

3.03

3.09

3.07

3.02

2.98

3.13

3.58

4.52

4.43

4.03

3.64

3.38

3.19

3.07

2.97

2.90

2.86

2.85

2.90

2.87

2.83

2.80

2.77

2.74

2.71

2.67

2.64

_

-

liar.

2.61

2.61

2.62

2.63

2.63

2.63

2.63

2.63

2.63

2.62

2.63

2.73

2.76

2.78

2.89

2.97

2.97

2.94

2.90

2.87

2.83

2.80

2.77

2.72

2.69

2.68

2.65

2.64

2.68

2.73

2.72

Apr.

2.68

2.65

2.64

2.63

2.63

2.63

2.64

2.64

Z.64

2.63

2.60

2.59

2.59

2.55

2.56

2.56

2.56

2.56

2.55

2.53

2.51

2.49

2.48

2.47

2.47

2.47

2.52

2.59

2.58

2.55

-

May

2.53

2.51

2.49

2.49

2.48

2.48

2.49

2.49

2.49

2.49

2.50

2.50

2.49

2.48

2.48

2.48

2.48

2.48

2.47

2.47

2.46

2.45

2.46

2.47

2.47

2.47

2.47

2.47

2.46

2.45

2.45

Jnne

2.46

2.46

2.46

2.47

2.47

2.46

2.45

2.45

2.45

2.43

2.43

2.44

2.44

2.43

2.43

2.42

2.41

2.40

2.39

2.38

2.36

2.35

2.34

2.33

2.33

2.32

2.31

2.29

2.27

2.26

-

July

2.25

2.24

2.23

2.22

2.21

2.21

2.20

2.19

2.19

2.18

2.16

2.13

2.13

2.11

2.10

2.08

2.08

2.07

2.07

2.06

2.04

2.03

2.0E

2.02

2.00

1.99

1.98

1.98

1.97

1.96

1.94

Aug.

1.93

1.92

1.91

1.90

1.89

1.88

1.87

1.87

1.86

1.85

1.84

1.83

1.83

1.82

1.82

1.81

1.80

1.78

1.77

1.76

1.75

1.73

1.72

1.71

1.70

1.69

1.69

1.71

1.70

1.69

1.68

Sept.

1.69

1.68

1.67

1.66

1.65

1.64

1.66

1.67

1.66

1.66

1.64

1.64

1.63

1.61

1.60

1.59

1.59

1.58

1.58

1.56

1.53

1.53

1.53

1.53

1.55

1.54

1.55

1.65

1.74

1.85

-
MISSION CREEK BASIN 57

Mission Creek near Bremerton, Wash.

Location. Lat 47°32<, long. 122°50<, in NE^NW^ sec. 32, T. 24 N., R. 1 W., on west shore 

 Tssion Lake, 300 ft upstream from lake outlet and 9| miles west of Bremerton.

Drainage area.--1.91 sq mi (revised).

Records available. June 1945 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 513.0 ft above mean sea level (by closed 

stadia traverse).

Average discharge. 6 years, 6.78 cfs.

Extremes. Maximum discharge during year, 90 cfs Feb. 9 (gage height, 4.62 ft); no flow on 

many days.

1945-51: Maximum discharge, 96 cfs Feb. 22, 1949 (gage height, 6.36 ft); no flow at 

times each year.

Remarks. Records good except those for period of shifting control, which are fair, and 

those for period of no gage-height record, which are poor. No diversion. Natural regulation by Mission Lake.

Rating tables, water year 1950-51, except period of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 8

1.8 

2.0 

2.2 

2.4 

2.6

Feb. 9 to Sept. 30

0

.3 

1.4 

3.9 

7.8

2.8 

3.0 

3.3 

3.6 

4.0

13

18.5

28

40

57

2.44

2.5

2.6 

2.8 

3.0

0

1.5

4.0

9.5

16

3.3 27

3.6 39

4.0 57

4.5 34

Discharge, in cubic feet per second, water year October 1950 to September 1S51

Day

1 

2

3

4

5

6

7

8

9 

10

11

12

13 

14

15

16 

17

18

19

20

21

22

23

24 

25

26 

27

28

29

30

SI

 total

Mean

Cfsm

In.

Ac-ft

Oct.

P. 

0

0

0

0

.1

.2

.6

1.5 

2.8

2.5

2.3

2.1 

1.9

1.7

1.6 

1.5

1.6

2.0

1.9

1.8

1.8

1.7

1.7 

2

3.5

5

8

10

12.5

11.5

83.8

2.70

1.41

1.63

166

Nov.

11.5 

 12

11

10.5

9.6

9.0

8.4

7.3

7.2 

6.8

6.8

6.4

H8.1

15 

21

21

19

22

32

S3

SO

30 

36

37

30

24

26

"

545.5

18.2

9.53

10.62

1,080

Dec.

25 

23

22

21

20

 25

*28

26

27 

30

28

24

20 

18

18

20 

26

25

24

25

30

30

32

H

28 

24

21

19

18.5

17.5

764.0

24.6

12.9

14.88

1,520

Jan.

16 

18.5

21

21

18.5

16.5

15

13.5

12.5 

12

12

11

12.5 

13

19.5

25 

26

24

21

19.5

24

26

24

*27 

45

f

31

24

19.5

16.5

678.0

21.9

11.5

13.20

1,340

Feb.

15 

19.5

21

21

19

18

23

40

-H

*58

41

30 

23

18.5

15 

12.5

11.5

11

12.5

11.5

10.5

9.5

8.6 

7.7

6.8 

5.8

5.Q

-

-

-

639.9

22.9

12.0

12.46

1,270

Mar.

H4.5

4.8

4-. 8

 4.8

4.8

4.8

4.8 

4.5

4.8

7.4

8.3

8.9

12.5

ft

14

12.5

11.5

10.5

9.5

8.6

7.1 

6.2

6.0 

5.2

5.0

6.0

7.4

7.1

234.7

7.57

3.96

4.57

466

Apr.

H5.0

4.8 4.'8

4.8

5.0

5.0

5.0 

4.8

4.0

3.8

3.8 

2.8

3.0

3.0 

3.0

3.0

2.8

 2.2

1.8

1.2

1.0

tl

.8 

2.0

3.8

3.5

2.8

"

100.3

3.34

1.75

1.95

199

May

2.2

1.8

1.2

1.2

.8

.8

1.0

1.0

1.0 

1.0

1.2

1.2

1.0 

.8

.8

.8 

.8

.8

.2

.2

fi

0

0

.2 

.2

.2 

.2

.2

0

0

0

20.8

0.67

0.351

0.41

41

June

*§

0

4.2

0

0

0

0 

0

0

0

0 

0

0

0 

0

0

0

0

0

0

0

0 

0

0 

0

0

0

0

-

0.4

0.01

0.0052

0.008

0.8

July

(*)

0

0

0

0

0

Aug.

( )

0

0

0

0

0

Sept.

0

0

0

0

0

Calendar year 1950: Max 84 Min 0 Mean 9.59 Cfsm 5.02 In. 68.151 Ae-ft 6,950

Water year 1950-51: Max 84 Min 0 Mean 8.40 Cfsm 4.40 In. 59.728 Ac-ft 6,080

Peak discharge (base. 55 efsl. Nov. 26 (3 a.m.) 43 efs (3.63 ft)j Dee. 24 (2 p.m.) 3" efs (3.51 

ft)5 Jan. 26 (2 to 5 a^nu) 54 cfs (3.95 ft); Feb. 9 (2 p.m.) 90 cfB (4.62 ft).

* Discharge measurement or observation of no flow made on this day.

Hote. No gage-height record Oct. 8 to Nov. 1; discharge estimated on basis of records for stations 

on nearby streams. Shifting-control method used May 5 to June 30.
58 MISSION CREEK BASIN

Mission Creek near Belfair, Wash.

Location. Lat 47°29'20", long. 122°51'40", in NWfc sec. 18, T. 23 N., R. 1 W., on left 

bank 3 miles northwest of Belfair and 5 miles upstream from mouth.

Drainage area. 4.37 sq mi (revised).

Records available. October 1945 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 330.0 ft above mean sea level (by closed 

stadia traverse).

Average discharge. 6 years, 12.7 cfs.

Extremes. Maximum discharge during year, 278 cfs Feb. 9 (gage height, 5.20 ft); no flow 

Sept. 16, 21, 22.

1945-51: Maximum discharge, 403 cfs Feb. 22, 1949 (gage height, 6.10 ft, from 

graph based on gage readings); no flow Sept. 16, 21, 22, 1951.

Remarks. Records fair except those for period of no gage-height record, which are poor. 

No diversion or regulation.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 26 to 

Mar, 10, Sept. 2-30)

1.1 

1.3 

1.5 

1.7 

1.9 

2.1

0.0

.1

.9

2.6

5.3

8.7

12.5

18

2.4 

2.7 

3.0 

3.3 

3.6 

4.0 

4.5 

5.0 

5.2

28

40

55

73

94

128

178

237

264

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

Ac-ft

Oct.

0.2 

.2

.2

.2

.3

.2

.4

.3

.3

.6

.2

,2

.1

. 2

.2

.2

.2

.3

.4

.2

.2

.2

.2

.2

.2

.4

.5

.6

.8

8.4

10.5

27.3

0.88

0.201

0.23

54

Nov.

12.5 

»12.5

11.5

10.5

9.3

8.2

6.8

5.5

4.4

3.8

3.2

2.7

2.6

2.4

6.6

21

34

34

30

34

54

60

54

56

S7

96

76

58

46

54

-

896.5

29.9

6.84

7.63

1,780

Dec.

54 

46

44

40

38

49

56

52

 54

66

58

4S

39

34

35

42

57

52

48

52

63

64

71

79

35

56

48

42

36

35

31

1,558

50.3

11.5

13.26

3,090

Jan.

28 

34

44

39

34

29

25

22

20

18.5

IS. 5

16.5

21

3S

50

53

46

40

36

54

58

52

55

101

 128 -§o

65

a50

a40

34

1,358.5

43.8

J.O.O

11.56

2,690

Feb.

29 

40

46

44

39

36

51

102

257

212

137

90

65

50

41

35

30

27

26

32

30

27

24

22

20

18

16.5

15

_

_

-

1,561.5

55.8

12.8

13.29

3,100

Mar.

13.5 

11.5

11

11

10.5

9.8

9.6

»9.4

9.1

8.2

7.7

11.5

15

16.5

22

25

24

22

20

18

16

14

12.5

12.5

12

10.5

9.6

8.7

8.9

9.S

9.1

408.9

13.2

3.02

3.48

811

Apr.

IT! l'.5

6.8

5.8

5.3

4.9

4.6

4.4

4.7

4.3

4.0

3.6

3.1

2.9

2.5

2.3

»2.2

2.3

»2.7

2.6

2.5

2.3

2.2

2.1

1.8

T72

4.2

3.6

3.1

-

118.3

3.94

0.902

1.01

235

May

f*

2.2

2.1

1.9

1.7

1.6

1.5

1.5

1.5

1.5

1.4

1.4

1.2

1.1

1.1

1.1

1.0

l.O

1.0

1.0

.9

1.0

1.1

1.0

.9

.9

.9

.9

.9

41.2

1.33

0.304

0.35

82

June

0.8 

.8

.S

.9

79

.8 *.a

.8

.7

.7

.8

.S

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

75

20.4

0.68

0.156

0.17

40

July

<>rf

'.6

.6

.6

.5

.5

.5

.5

.5

.4

.4

*.5

.5

.5

.4

.4

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

14.1

0.45

0.103

0.12

28

Aug.

0,1

!s

.3

^2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

*.2'.Z

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.7

0.22

0.050

0.06

13

Sept.

°*|

'.Z

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

"".1 0

.1

.1

.1

0

0

.1

.1

.1

.1

.1.1

.1

.1

3.1

0.10

0.023

0.03

6.1

Calendar year 1950: Max 220 Mln 0.1 Mean 17.3 Cfsm 3.96 In. 53. T2 Ac-ft 12,520

Water year 1950-51! Max 257 Mln 0 Mean 16.5 Cfsm 3.78 In. 51.19 Ac-ft 11,930

Peak dischargee (base. 60 cfs). Ho

69 cfs (3.23 ft); Dec. 24 (2 p.m.) 8( 

(8 a.m.) 278 cfs (5.20 ft).

IT. 25 (8 to 10 p.m.) 108 cfs (3.78 ft); Dec. 10 (5 to 6 a.m.) 

5 cfs (3.40 ft); Jan. 26 (l to 2 a.m. 5 142 cfs (4.04 ft); Feb. 9

8 a.m.) 278 cfs (5.20 ft). 

* Discharge measurement made on this day. 

a Mo gage-height record; discharge estimated on basis of recorded range In stag^.
TAHUYA RIVER BASIN 59

Gold Creek near Bremerton, Wash.

Location. Lat 47 e 33'20", long. 122 e 48'30", in NE&Wi sec. 21, T. 24 N., R. 1 W., on 

right bank about 1 mile upstream from mouth and 7 miles west of Bremerton.

Drainage area. 1.54 sq mi (revised).

Records available. October 1945 to September 1951.

Gage. Water-stage recorder. Datum of gage is 750.9 ft above mean sea level (by closed 

stadia traverse).

Average discharge. 6 years, 6.13 cfs.

Extremes.--Maximum discharge during year, 153 cfs Feb. 9 (gage height, 2.81 ft); minimum, 

0.3 cfs Aug. 27, Sept. 3, 19, 20, 23, 24.

1945-51: Maximum discharge, 253 cfs Nov. 26, 1949 (gage height, 3.17 ft); minimum, 

0.2 cfs Aug. 14, 1950 (gage height, 0.75 ft).

Remarks.--Records fair. No diversion or regulation.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second)

0.78

.9 

1.1 

1.3 

1.5

0.3

.8

3.0

7.8

14

1.7 

1.9 

2.1 

2.3 

2.5

24

37

54

75

100

Dlscharg;e, In cubic feet per second, water year October1950 to September 1951

Day

1 

2

3

4

5

6

7

3

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.

Ao-ft

Oct.

0.6

Te

.S

1.4

1.0

2.0

2.0

1.7

5.0

2.5

2.1 

1.7

1.6

1.6

1.5

1.6

3.4

3.4

3.0

3.0

2.8

2.7

2.4

2.8

3.2

5.8

10.5

W10.0

109.2

3.52

2.29

2.64

217

Nov.

10.5 

9.0

7.8

6.8

5.5

 5.3

4.5

4.0

3.6

3.4

3.2

3.0 

3.0

g t 8

7.5

26

27

16

10.5

21

34

23

17.5

18.5

36

31

21

15

11.5 

13.5

-

401.4

13.4

8.70

9.69

796

Dec.

11

11

15.5

16

15.5

 28

26

18.5

22

25

17.5

13 

11

10

12.5

17.5

27

19

17

20

26

23

14

35

22

17

13

11.5

10.5 

12.5

11.5

564.0

18.2

11.8

13.62

1,120

Jan.

10.5 

17

19.5

15.5

12

10.5

9.5

8.8

8.3

8.3

8.5

W10.5

22

23

17

14

12

11

19.5

18.5

16

28

SB

 41

22

15

12 

10

9.3

514.8

16.6

10.3

12.43

1,020

Feb.

9.0 

17

17

14.5

12

11.5

24

71

99

*52

30

19 

15

12

11

9.S

9.8

9.0

10. 0

13.5

12.5

10. S

9.3

8.8

8.3

7.5

7.0

6.5

_

"

536.5

19.2

12.5

12.96

1,060

Mar.

6.3 

5.S

5.5

5.5

5.0

4.8

4.5

*4.5

4.3

4.0

4.3

7.3 

8.0

9.3

14

14

10.5

8.8

7.8

7.0

6.8

6.0

6.0

5.3

5.3

5.0

4.8

4.5

4.8 

6.0

5.0

200.7

6.47

4.20

4.85

398

Apr.

lil 

4.5

4.3

4.0

3.S

3.8

3.6

3.4

3.4

3.2

3.2

3.0 

2.8

3.0

3.0

2.7

2.7

2.2

 2.1

2.1

1.8

TTs lie

1.8

1.8

2.1

2.8

2.1 

2.0

85.3

2.84

1.84

2.06

169

May

1.7 

1.5

l.S

1.7

1.8

1.8

g 0

TTs

1.7

1.6

1.6

1.5 

1.4

1.4

1.3

1.4

1.4

1.3

1.3

1.4

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.0 

1.0

1.0

43.4

1.40

0.909

1.05

86

June

*TTo

.9

1.0

.9

.9

.9

.9

.9

.9

.9

1.0 

.9

.9

.S

.S

.7

.8

.8

.7

.7

. 6

75

.6

.6

.6

.6

.6

.6 

.6

23.7

0.79

0.513

0.57

47

July

.5

.5

.6

.6

.6

.6

.6

.6

.6

«.7

!s

.6

.6

.6

.6

.5

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5 

.5

.5

17.3

0.56

0.364

0.42

34

Aug.

0.5 

.5

.5

.5

ii

.4

.4

.4

. 6

7s

.5

.4 

.5

.5

.5

.5

.4

.4

.4

.4

».4

!4

.4

.4

.4

.4

.4

.5

.4 

.4

.4

13.7

0.44

0.286

0.33

27

Sept.

0.4 

.4

.4

.4

.4

.4

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.4

.4

.4

1.0

-

14.6

0.49

0.318

0.35

29

Calendar year 1950t Max 120 Mln 0.3 Mean 7.93 Cfsm 5.15 In. 69.88 Ac -ft 5,740

Water year 1950-51: Max 99 Mln 0.3 Mean 6.92 Cfsm 4.49 In. 60.97 Ac-ft 5,000

Peak discharge (base. 100 cfs). Dec. 23 (6 p.m.) 140 cfs (2.74 ft); Feb. 9 (4 a.m.) 153 cfs (2.81 

tT 

* Discharge measurement made on this day.
60 TAHUYA RIVER BASIN

Tahuya River near Bremerton, Wash.

Location. Lat 47°33'00", long. 122°50'30", in SE&SEi sec. 19, T. 24 N., R. 1 W., on 

left bank l£ miles downstream from Tahuya Lake and 10 miles west of Bremerton.

Drainage area. 6.12 sq ml.

Records available. May 1945 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 539 ft above mean sea level (by closed 

stadia traverse).

Average discharge. 6 years, 22.2 cfs.

Extremes. Maximum discharge during year, 460 cfs Feb. 9 (gage height, 5.44 ft); minimum, 0.2 cfs on many days during August and September.

1945-51: Maximum discharge, that of Feb. 9, 1951; maximum gage height, 5.58 ft 

Nov. 27, 1949; minimum discharge, 0.1 cfs Sept. 22-26, 1947, Sept. 1-10, 12, 13, 1949.

Remarks. Records good except those for periods of shifting control, whlc1! are fair, and 

those for periods of no gage-height record, which are poor. Small diversions for 

domestic use. No regulation.

Rating tables, water year 1950-51, except periods of shifting control (gag? height, 

in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 8 PebJ 9 to Sept. 30

2.58 0.4

2.7 3.3

2.9 14.5

3.1 31

3.3 53

3.6 95

4.1 184

2.25

2.4

2.6

2.9

3.2

0.2

1.9

7.0

25

60

3.5 

4.0 

4.5 

5.2

108

193

280

406

Discharge, In cubic feet per second, water year October 1950 to SeptemJ«r 1951

Day

1

2

3

A

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30 

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

~0.4 

.5

.6

1.2

1.0

1.6

1.6

1.9

4.6

2.9

2.5 

2.2

2.2

2.5

2.5

2.5

5.4

6.7

5.8

6.3

6.3

6.3

6.3

7.6

10 

17

23

48

51 

43

273.8

8.83

1.44

1.66

543

Nov.

46 

*43

36

31

29

28

28

25

22

20

18.5

17

16

15

28

95

135

108

74

88

141

121

101

103

133

in86

69

70

1,988.5

66.3

10.8

12.08

3,940

Dec.

67

61

69

72

67

*94

106

90

95

118

98

74

61

53

57

72

106

95

82

89

111

106

111

118

101

79 

65

58

49

49

2,525

81.5

13.3

15.34

5,010

Calendar year 1950: Max 391

Jan.

43 

54

69

65

56

46

40

35

30

30

31

I

37

72

89

84

69

58

47

74

83

76

*88

169

180 

106

70

57

40 

30

1,992

64.3

10.5

12.10

3,950

Feb.

25 

56

61

61

56

49

76

172

397

271

*162

118 

91

69

59

47

45

40

45

59

57

51

43

39

34

30 

25

22

-

-

2,260

80.7

13.2

13.73

4.480

Min n.9.

Mar.

20 

17

16

17

15

13

14

*12

11.5

11

11

23 

33

41

62

70

57

47

37

32

31

27

23

19.5

18

16.5 

14.5

14

14

19 

17.5

773.5

25.0

4.08

4.70

1.530

Apr.

if12.5

11.5

11

10.5

10

9.7

9.2

8.8

8.0

8.0 

7.7

7.7

7.4

7.0

6.4

6.4

6,1

6.4

5.5

4.9

4.7

3.3

2.7 

4.9

8.8

6.1

10

237.9

7.93

1.30

1.45

472

May

*».*

3.3

2.4

3.3

2.4

3.3

3.6

3.3

2.2

2.7

2.2 

2.2

2.1

2.1

2.1

2.9

3.6

3.1

2.1

2.2

1.6

2.1

1.9

1.9

1.8 

1.8

1.8

1.6

1.6 

1.5

86.1

2.78

0.454

0.52

171

June

1.5

1. 3 i!s

1.5

1.5

*1.5

1.5

1.4

1.3

1.1

1.3 

1.3

1.3

1.1

1.1

1.0

1.0

1.0

1.0

.9

.9

.9

1.1

.9

.9 

.9

.8

71

.8

34.5

1.15

0.188

0.21

68

July

<4

is

.8

.8

.8

.8

.8

.8

.8

*.7

.7 

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6 

.5

75

.5

.5 

.5

21.0

0.68

0.111

0.13

42

Aug.

0*5 

.5

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3 

.3

.3

.3

.3

.2

.2

.2

.2

*.2

.2

.2

.2

,2

.2 

.3

.3

.3

.3 

.3

9.4

0.30

0.049

0.06

19

Sept.

0,2

'.2

.2

.2

.2

.3

.3

.3

.3

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2 

.3

.7

-*

8.4

0.28

0.046

0.05

17

Mean 30.8 Cfsm 5.03 In- 68.21 Ac-ft 22,260

Water year 1950-51: Max 397 Minoi2 Mean 28.0 Cfsm 4.58 In. 62.03 Ac-ft 20,240

Peak discharge (base. 130 cfs). HOV . 17 (5.30 a.m.) 144 cfs (3.89 ft); Nov. 21 (9 a.m. to 12:30 

p.m.) 146 ofs (3.90 ft); Nov. 26 (3:30 s.m.) 157 cfs (3.96 ft); Dec. 23 (10 p.m.) 135 cfs (3.84 ft); 

Jan. 25 (11 p.m.) 226 cfs (4.32 ft); Feb. 9 (9 a.m.) 460 cfs (5.44 ft).

* Discharge measurement made on this day.

Note.--Ho gage-height record Jan. 30 to Feb. 1, Feb. 26 to Mar. 7, July 16 to Aug. 20; discharge 

estimated on basis of weather records, recorded range in stage, and records for stations on nearby 

streams. Shifting-control method used Feb. 9-25, June 26 to July 15, Aug. 21 to S;pt. 30.
TAHUYA CREEK BASIN 61 

Panther Lake near Bremerton, Wash.

Location. Lat 47°31', long. 122°51', in NE^NWi sec. 6, T. 23 N., R. 1 W. , on south shore 

on lake 9 miles southwest of Bremerton.

Records available. March 1945 to September 1951 (fragmentary).

Sage. Staff gage read at infrequent intervals. Datum of gage is 491.5 ft above mean sea 

level (by closed stadia traverse).

Extremes . 1945-51 : Maximum gage height, 9.39 ft probably Feb. 10, 1951, from high-water 

mark; minimum observed, 5.74 ft Sept. 16, 1949.

Remarks . No diversion or regulation. 

Revisions (water years) . W 1152: 1945-48.

Sage height, In feet, 1950-51 

Nov. 7...... 7.38 Feb. 11...... 9.18

Dec. 7...... 8.25 June 5...... 7.12

Jan. 29...... 8.24 Aug. 21...... 6.02

Feb. 10...... 9.39
62 TAHUYA RIVER BASIN

Panther Creek near Bremerton, Wash.

Location. Let 47°31'40", long. 122°S2'00", in NWi sec. 31, T. 24 N., R. 1 W., on left 

EahTThalf a mile downstream from Panther lake and 11 miles west of Bremerton.

Drainage area. 1.00 sq ml.

Records available. June 1945 to September 1951.

Gage. Water-stage recorder. Datum of gage is 486 ft above mean sea Iev3l (by closed 

stadia traverse).

Average discharge. 6 years, 3.15 cfs.

Extremes. Maximum discharge during year, 63 cfs Feb. 9 (gage height, 2.78 ft); no flow 

on many days.

1945-51: Maximum discharge, 199 cfs Feb. 22, 1949 (gage height, 3.02 ft); no flow 

at times each year.

Remarks.--Records good except those below 0.5 cfs or above 15 cfs, which are fair, and 

those for periods of no gage-height record, which are poor. No diversion. Natural 

regulation by Panther Lake.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second)

1.0

1.2 

1.4

.6 

3.3 

7.9

1.6 

1.9 

3.3 

2.5

13

19

30

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

30

21

23

23

24

25

26

37

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

Q"0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1.1

.1.1.1.1.1

.1

.3

1.8

3. 2*47

*1.8

9.8

0.33

0.330

O.36

19

Nov.

3.0

2.0

1.6

1.5

1.4

1.2

.9

.8

.7

.6

.6

.6

. 5

7s

1.4

10.5

11

S.2

6.8

12

15.5

14

13

14

ZO

19

15.5

13

13

12.5

-

213.3

7.11

7.11

7.93

423

Dec.

13

12

13

10.5

9.5

13.5

*13.5

12

13.5

15

13.5

10.5

8.4

7. 3

J7S

13

13.5

12

11

13

14.5

14

16

17

14.5

13

11.5

9.9

8.4

8.4

7.3

365.0

11.8

11.8

13.57

734

Calendar year 1950: Max 38

Jan.

6.5

8.8

11

S.8

7.3

6.3

5.4

5.0

4.5

4.3

4.3

"sTi"

6.0

13

13

12.5

12

10.5

9.5

15

14.5

13.5

15

*23

30

15.5

13

alO

as. 5

a7

308.1

9.94

9.94

11.46

611

Feb.

6.0

10.5

11.5

9.5

8.2

7.3

12.5

34

*34" 44

35

19.5

15.5

13

11.5

8.8

7.6

6.8

6.8

8.3

7.0

6.3

5.4

4.5

4.3

3.7

3.3

3.0

-

-

-

337.6

11.7

11.7

12.18

650

Mar.

3.7

2.4

2.3

3.1

3.0

1.8

1.8

 1.7

1.7

1.5

1.5

2.7

4.5

4.5

5.4

4.5

4.1

3.7

3.5

3.3

3.8

3.7

2.4

3.1

3.0

l.S

1.7

1.7

3.0

2.0

84.4

3.73

2.72

3.14

167

Apr.

1.8

1,5 i!s

1.4

1.3

1.3

1.1

1.0

1.0

.9

.3

.8

.7

.6

.6

.5

.5

*. 5

.4

.4

.3

.3

.3

.3

il

.3

.3

.5

.5

.5

-

33.3

0.74

0.740

0.83

44

May

0.5

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.Tl

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

5.5

0.18

0.180

0.20

11

June

(*)

0

D

0

0

0

July

(*)

0

0

0

0

0

Aug.

(*)

0

0

0

0

0

Sept.

0

0

0

0

0

Mln 0 Mean 4.13 Cfsm 4.13 In. 56.08 Ac-ft 3.990

Water year 1950-51: Max 44 Mln 0 Mean 3.66 Cfsm 3.66 In. 49.67 Ac-ft 3J650

Peak discharge (base. 30 efB).--Mov. 35 (5:30 p.m.) 36 cfs (3.12 ft)j Jan. 35 (8 p.m.) 36 cfs (3.13 

ft)j Feb. 9 (4:30 a.m.) 63 cfs (3.78 ft). 

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.
TAHUYA RIVER BASIN 63

Tahuya River near Belfair, Wash.

Location. --Lat 47°29'40", long. 122°54'20", in SE&Ei sec. 10, T. 23 N., R. 2 W., on 

left bank 3j miles downstream from Panther Creek and 5 miles northwest of Belfair.

Drainage area. 16.5 sq mi.

Records available.--May 1945 uo September 1951.

Gage.--Water-stage recorder. Datum of gage is 353 ft above mean sea level (by closed 

stadia traverse).

Average discharge.--6 years, 47.6 cfs.

Extremes. Maximum discharge during year, 780 cfs Feb. 9 (gage height, 7.41 ft); no flow 

Oct. 1-6, July 11, 12, July 15 to Sept. 30.

1945-51: Maximum daily discharge, 1,000 cfs Jan. 22, 1950; no flow at times each 

year.

Remarks. Records good except those for periods of shifting control, which are fair. 

Small diversions for domestic use. No regulation.

Rating tables, water year 195O-51, except periods of shifting control (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Jan. 25 Jan. 26 to Sept. 3O

1.85

1.9

2.0 

2.2 

2.4 

2.6 

2.8

O.O 

.1 

.6 

5.0 

13 

25 

4O

3.0 

3.3 

3.6 

4.0 

4.5 

5.0 

5.5

122

174

247

327

414

2.1 

2.3 

2.5 

2.7 

2.9 

3.2 

3.5

O.O

19

34

64

102

4.0 

4.5 

5.0 

5.5 

6.0 

6.5 

7.O

172 

247 

327 

414 

505 

600 

70O

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Tbtal

Mean

Cfsm

In.

Ac-fl^

Oct.

O

0

0

0

0

o

.1.1

.2

.6

2.0

4.4

3.8

3.3

3.0

2.8

2.5

4.7

7.7

9.O

7.3

6.3

5.9

5.6

5.9

10

20

52

84

90

152

413.2

13.3

O.806

0.93

820

Nov.

87 

82

*68

58

50

43

39

34

31

28

24

22

20

18.5

28

143

240

195

135

163

294

278

210

224

338

352

262

195

150

159

-

5,970.5

132

8.OO

8.95

7,880

Dec.

173 

144

148

143

132

187

*217

1S8

210

266

217

163

129

112

126

170

247

202

170

195

247

232

254

286

232

174

143

132

117

US

112

5,606

181

11.0

12.64

11,120

Jan.

100 

118

163

147

126

108

95

85

76

75

79

77

96

110

178

224

210

164

139

124

195

217

184

210

397

405

262

157

*106

79

62

4,768

154

9.33

10.75

9,460

Feb.

52 

109

155

144

112

92

176

397

7OO

543

*378

247

175

130

103

84

76

70

69

103

101

86

72

62

53

48

42

12-

-

-

4,418

158

9.58

9.96

8,760

Mar.

36 

32

29

29

28

25

*25

24

23

J22

22

43

88

93

112

~99 120

81

68

58

51

49

41

38

35

32

31

28

28

35

33

1,458

47.0

2.85

3.29

2,89O

Apr.

826

24

22

21

19.5

19

18

16.5

16

15

14

13.5

13.5

12.5

11.5

 11.5

10.5

9.7

9.3

8.9

8.1

7.7

7.3

1,5

7.3

17

15

12

45O.8

15.0

O. 909

1.02

894

May

«

10.5

8.5

7.7

7.3

6.9

6.9

6.5

6.1

5.7

5.3

5.3

4.5

4.5

4.1

3.8

3.S

4.9

4.5

3.8

3.5

2.9

2.9

2.9

2.9

2.6

2.3

2.3

2.0

2.0

165.9

5.35

0.324

0.37

329

June

fci

1.6

1.6

1.6

*1.6

1.6

1.3

1.1

1.1

1.1

1.1

1.1

.9

.9

.9

.7

.7

.6

.4

.4

.2

72

.2

.2

.2

.2

.2

.2

.2

25.9

0.86

0.052

O.O6

51

July

~T2 O.2 

.2

.2

.2

.2

.2

.2

.2

.2

0

*7J

.2

.2

0

0

0

O

O

0

o

o

0

o

0

o

o

o

o

o

o

2.4

0.08

O. 004S

0.005

4.8

Aug.

(*)

O

0

o

0

0

Sept.

O

O

O

O

0

Calendar year 1950; Max 1,OOO Min o Mean 69.3 Cfsm 4.20 In. 57 03 Ac -ft 5O,17O

Water year 1950-51: Max 700 Min 0 Mean 58. 3 Cfsm 3.53 In. 47.93 Ac-ft 42,21O

, Peak discharge (base. 45O cfsl. Jan. 25 (11 p.m.) SOS cfs (5.75 ft); Feb. 9 (7:3O a.m.) 780 cfs 

(7.41 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Nov. 18 to Jan. 27, Feb. 14 to Mar. 15.
64 DEWATTO CREEK BASIN

Dewatto Creek near Dewatto, Wash.

Location.--Lat 47°28'10", long. 123°01i30", in sec, 23, T. 23 N., R. 3 W., on right bank 

if miles upstream from mouth and 2 miles northeast of Dewatto.

Drainage area. 17.6 sq ml.

Records available.--July 1947 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 55 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,160 cfs Feb. 9 (gage height, 5.86 ft), from 

 rating curve extended above 780 cfs; minimum, 11 cfs Sept. 20, 21, 22.

1947-51: Maximum discharge, 1,630 cfs Nov. 27, 1949 (gage height, 6.75 ft), from 

rating curve extended above 780 cfs; minimum, 9.6 cfs Sept. 22, 1950.

Remarks.--Records good except those for periods of shifting control, which are fair. No 

diversion or regulation.

Rating tables, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 25 Nov. 26 to Sept. 30

1.6 

1.8 

2.0 

2.2 

2.4

2.7 

3.0 

3.3 

3.6 

4.0

117

169

232

304

414

1.5 

1.7 

2.0 

2.3 

2.6 

2.9

18

41

74

115

163

3.2 

3.5 

4.0 

4.5 

5.0 

5.6

220

286

420

580

780

1,030

Discharge, in cubic feet per second, water year October 1950 to Septen-ber 1951

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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

11.5

11.5

12

17.5

28

23

38

28

25

85

55

38

30 

26

24

22

22

39

48

46

38

33

30

28

30

36 

57

111

143

123

106

1,364.5

44.0

2.50

2.88

2,710

Nov.

Ill

101

*83

70

60

52

47

43

38

36

34

32

31 

30

48

135

214

169

117

160

267

260

202

208

348

363 

245

183

144

172

"

4,003

133

7.56

8.46

7,940

Dec.

192

160

154

135

126

176

190

*172

210

286

208

158

127 

116

154

226

310

220

177

208

270

248

259

274

216

170 

151

149

135

127

112

5,816

188

10.7

12.29

11,540

Jan.

102

138

177

149

126

109

98

91

83

90

101

95

133 

141

228

248

214

176

153

140

256

265

212

216

350

406 

248

170

 135

116

105

5,271

170

9.66

11.14

10, 450

Feb.

102

183

216

194

158

141

254

508

1.000

720

391

243

181 

151

133

118

115

105

121

153

135

118

105

98

91

84 

79

15

-

"

5,972

213

12.1

12.62

11,850

Mar.

72

69

69

68

66

64

*62

60

59

58

63

127

m133

120

101

88

SO

74

70

66

62

59

59

56 

54

52

59

69

60

2,367

76.4

4.34

5.00

4,690

Apr.

56

54

52

50

49

47

46

45

44

42

41

40

40 

40

39

37

37

*37

36

36

35

35

35

34

34

33 

46

70

50

46

"

1,286

42.9

2.44

2.172

2,550

May

*2

39

38

39

38

37

37

37

36

35

36

35

33 

33

32

32

31

30

30

29

29

28

29

30

29

28 

28

27

27

27

26

1,007

32.5

1.85

2.13

2,000

June

25

24

24

25

*25

24

24

24

24

23

23

23

23 

22

22

21

21

21

20

19.5

18

18

18

18

18

18 

18

17.5

11

17

"

635.0

21.2

1.20

1.34

1,260

July

17

17

17

17.5

17.5

11

17.5

17

17

16.5

16

*15

16 

16

16

16

16

16

16.5

16.5

16

16

15

16

16

16.5 

16

14.5

14.5

14.5

1*

501.0

16.2

0.920

1.06

994

Aug.

14

13.5

13.5

14

13.5

13

13

13

13.5

14

14

14

13.5 

13

13

12.5

12

12

12

 ll,,!

11.5

11.5

11.5

11.5

11.5

11.5 

13.5

1&

14

13.5

13

400.5

12.9

0.733

0.85

794

Sept.

12.5

12.5

12.5

12.5

11.5

12

15

14

13

12.5

12

12

11.5 

11.5

11.5

11.5

11.5

11.5

11.5

11

11

12

11.5

11.5

12

12 

13.5

24

30

ii

415.0

13.8

0.784

0.88

823

Calendar year 1950: Max 780 Min 10 Mean 88.6 Cfsm 5.03 In. 68.37 Ac-ft 64,190

Water year 1950-51: Max 1,000 Min 11 Mean 79.6 Cfsm 4.52 In. 61.37 Ac-ft 57,600

Peak discharKe (base. 350 cfs). --Nov. 25 f7:30 p.m.) 475 cfs (4.19 ft); Jan. 26 (1 a.m.) 495 cfs

(4.23 ft); Feb. 9 (9 a.m.) 1,160 cfs (5.86 ft).

* Discharge measurement made on this day.

Hote . Shifting-control method used Oct. 1-9, Apr. 28 to Aug. 13.
DOGFISH CREEK BASIN 65

Dogfish Creek near Poulsbo, Wash.

Location.--Lat 47°45'10", long. 122°38'30", in SW£ sec. 11, T. 26 N., R. IE., on left 

bank half a mile upstream from mouth and 1 mile north of Poulsbo. Prior to Nov. 2, 

1950, at site 200 ft downstream.

Drainage area.--6.77 sq mi.

Records available. July 1947 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is about 20 ft (from topographic map). 

Prior to Nov. 2, 1950, at site 200 ft downstream at datum 1.75 ft lower.

Extremes.--Maximum discharge during year, 127 cfs Feb. 9 (gage height, 3.44 ft); minimum, 

1.8 cfs July 30.

1947-51: Maximum discharge, 265 cfs about Feb. 22, 1949 (gage height, f.82 ft, site 

and datum then in use, from high-water mark on gage house), by contracted-opening determination; minimum, 1.8 cfs Aug. 13, 1947, July 30, 1951.

Remarks. Records good except those above 60 cfs and those for periods of shifting control, which are fair. Small diversion for irrigation. No regulation.

Revisions (water years). W 1122: 1947(M).

Rating tables, water year 195O-51, except periods of shifting control (gag? 

height, In feet, and discharge, In cubic feet per second)

2 to Feb. 9 Feb. 10 to Sept. 3O

1.3

1.5 

1.7 

1.9

3.8

9.6

2.2 49

2.5 72

2.8 94

1.1 1.9

1.3 5.6

1.5 11.5

1.7 19.5

1.9 30

2.1 42

Discharge, In cubic feet per second, water year October 1950 to September 1S51

Day

1

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

3.6

3.6

3.6

3.8

5.3

4.5

4.3

8.3

6.1 

7.7

5.4

4.8

4.5

4.4

4.2

4.2

4.3

5.6

5.0

4.8

4.7

4.7

4.7

5.2

6.4

6.4

9.1

8.8

7.1

6.1

171.7

5.54

0.818

0.94

341

Nov.

8.0

6.7

6.1

5.3

6.7

5.6

5.3

4.8

H

*5.6

5.8

5.3

5.6

30

38

22

13.5

10.5

31

23

14.5

16.5

16

30

18

14.5

11.5

8.6

25

-

402.5

13.4

1.98

2.21

798

Dec.

19.5

14

13

8.6

10

20

22

*14.5

51 

25

18.5

12

8.6

10.5

25

29

27

15.5

19.5

18

14.5

16

20

15.5

12

8.6

7.0

7.3

6 1

1875

9.3

496.0

16.0

2.36

2.72

984

Jan.

10

25

15

9.3

6.7

5.8

5.1

4.8

eti

7.3

5.1

5.3

4.8

51

33

26

18.5

17

15

IS 32

20

18

18

17.5

9.6

6.4

5.3

4.6

4.6

487.4

15.7

2.32

2.68

967

Feb.

36"5.6

17.5

14.5

11

12.5

44

69

90

*41

26

20

17

15.5

16

14

17.5

15

18.5

18

14

12

11

10.5

10

9.6

8.9

8.6

-

-

"

603.2

21.5

3.18

3.31

1,200

Mar.

9.6

8.0

8.0

8.3

8.6

8.6

8.6

8.6

*8.9 

8.3

10.5

23

15.5

12

12

9.6

8.3

8.0

7.4

7.1

7.1

7.1

6.9

6.9

7.1

8.0

7.1

6.6

7. 7

9.3

7.1

279.8

9.03

1.33

1.54

555

Apr.

6.9

6.3

6.3

6.1

6.1

6.1

5.8

6.1

5.8 

5.6

5.4

5.4

5.4

5.4

5.4

5.1

5.1

5.1

*5.1

5.1

5.1

4.9

4.9

4.9

4.9

4.7

6.6

8.9

676

6.1

"

171.2

5.71

0.843

0.94

340

May

5.6

5.4

5.1

5.1

5.1

5.1

6.1

5.8

5.1 

5.1

9^9

6.6

5.6

5.1

5.1

4.9

5.1

5.4

4.9

4.5

4.3

lil

4.1

4.3

4.3

4.3

4.3

4.5

4.5

4.3

4.1

157.7

5.09

0.752

0.87

313

June

3.9

3.9

3.9

4.9

4.7

4.5

4.1 

3.9

4.1

4.7

4.3

4.1

3.9

3.5

3.5

3.5

3.5

3.3

3.1

2^8

3.1

3.1

3.1

3.1

3.1

3.0

3.0

3.8

"

112.9

3.76

0.555

0.62

224

July

3.0

3.0

3.1

3^9

3.5

3.5

3.1

3.3

3.1 

3.1

2.8

2.6

*2.6

3.0

3.1

3.0

3.1

3.5

3.5

3.3

3.1

3.1

3.0

3.0

3.1

3.0

3.0

3.1

3.1

3.0

3.0

96.6

3.12

0.461

0.53

192

Aug.

3.0

3.1

3.1

3.3

3.1

3.0

3.1

3.1

3.1 

3.1

3.1

3.1

3.1

3.0

3.0

3.0

3.0

2.8

2.6

2.6

*2.6

2.8

3.0

3.1

3.0

3.1

3.9

5^6

4.1

3.9

3.7

99.1

3.20

0.473

0.54

197

Sept.

3.7

3.5

3.5

3.3

3.3

3.5

4.1

4.1

3.9 

3.7

3.5

3.3

lil

3.1

3.1

3.1

3.1

3.3

3.3

3.1

3.1

3.3

3.5

3.9

4.3

4.1

4.3

1=1

6.3

6.3

"

114.8

3.83

0.566

0.63

228

Calendar year 1950: Max 73 Mln 2.9 Mean 9.72 Cfsm 1.44 In. 19. 5o Ac-ft 7,040

Water year 1950-51: Max 90 Mln 2.6 Mean 8.75 Cfsm 1.29 In. 17.53 Ac-ft 6,340

Peak discharge (base. 70 cfs). --Nov. 15 (12 p.m.) 95 cfs (2.82 ft); Jan. 15 (6:30 a.m.) 91 cfs

(2.76 ft)) Jan. 21 (5 a.m.) 112 cfs (3.11 ft); Feb. 9 (2:3O a.m.) 127 cfs (3.44 ft).

* Discharge measurement made on this day.

Note . Shifting-control method used Oct. 1 to Nov. 15, Feb. 13 to Apr. 14.
66 WINTER CREEK BASIN

Huge Creek near Wauna, Wash.

Location. Lat 47°23'20", long. 122°41'50", at north line sec. 20, T. 22 N., R. IE., on 

right bank at downstream side of bridge an eighth of a mile upstream from mouth and 

2? miles west of Wauna.

Drainage area.--5.51 sq mi (revised).

Records available. July 1947 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 100 ft (from topographic map). Prior to 

June 26, 1951, water-stage recorder at same site at datum 0.86 ft higher.

Extremes. Maximum discharge during year, 391 cfs Feb. 9 (gage height, 3.64 ft, datum 

then in use); minimum, 3.9 cfs Oct. 15, 16, 17.

1947-51: Maximum discharge, that of Feb. 9, 1951; minimum, 3.2 cfs Sept. 1, 1950.

Remarks.--Records good except those for periods of no gage-height record, which are poor. 

No diversion or regulation.

Discharge, In cubic feet per second, water year October 1950 to Septemler 1951

Day

1

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

4.8

4.8

5.1

6.4

8.6

6.4

6.4

7.2

6.4 

16

6.4

5.4

5.1

4.5

4.2

3^9

4.2

6.1

7.6

5.4

4.8

4.8

4.8

4.5

4.8

5.1

8.1

11.5 

10

10

8.1

201.4

6.50

1.18

1.36

399

Nov.

9.7

7.2

6.8

6.4

6.1

5.8 eti

5.8

5.8 

5.8

5.8

5.8

5.8

5.8

8.1

11

9.7

7.6

7.6

12.5

15

25

20

30

45

30 

27

32

-

454.2

15.1

2.74

3.07

901

Dec.

40

25

22

19

 17.

35

40

35

40 

45

35

30

25

22

28

33

38

30

28

35

42

43

60

59

46

36

32

32

28

30

26

1,056

34.1

6.19

7.13

2,090

Jan.

23

45

42

33

26

24

22

19.5

18.5 

18.5

19

16^5

19

21

40

46

48

42

39

37

62

57

 47

47

51

57

42

32 

28

26

22

1,070.0

34.5

6.26

7.22

2,120

Feb.

23

47

48

43

35

32

49

61

 250

 173

 104

78

61

47

40

34

36

32

34

38

30

28

24

23

22

20

19

18

_

-

1,449

51.8

9.40

9.78

2,870

Mar.

18

17

17

17.5

17

»14.5

14

14

13.5 

16

18

28

30

26

34

28

23

20

18

16.5

16

15

14

13

13

12

12

ft

16

14

549.0

17.7

3.21

3.71

1,090

Apr.

13

12

12

11

11

11

10

10

10

9.5

9

9

9

9

8.5

 8.5

8.5

8

8

8

8

7.5

7^5

7.5

7.5

7.5

7.5

12

10

9

-

279

9.30

1.69

1.88

553

May

8^5

8.5

8

8

8

8

8

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5.5*

234

7.55

1.37

1.58

464

June

1

7

7

7

 7

7

7

7

7 

7

7

7

7

7

7

7

6.5

6.5

6.5

6.5

6.5

6.5

j;

6

6

6.4

6.6

6.6 

6.4

6.4

-

201.4

6.71

1.22

1.36

399

July

6^6

6.6

6.4

6.1

6.4

6.6

6.4

6.4

6.4 

*f .1

5.8

5.8

5.8

6.1

5.8

5.

5.

5.

5.

.2

.2

17 .5

5.79

1.05

1.21

356

Aug.

.2

.0

.0

.8

.8

.6

.6

.8

.8 

.0

.8

.8

.8

.8

.8

.6

.6

.6

.6 4^4

.6

.6

.6

.8

.8

.8

.O

/2

.O

.0

149.4

4.82

0.875

1.01

296

Sept.

5.0

5.0

4.8

4.8

4.8

4.8

5.2

5.2

5.0 

4.8

4.8

4.8

4.8

4.6

4.6

4.6

4.6

4.8

4.8

4.6

4.6

4.6

4.8

5.2

5.4

5.0

5.6

6.8 

lii

7.1

-

152.6

5.09

0.924

1.03

303

Calendar year 1950: Max 200 Mln 3.6 Mean 16.9 Cfsm 3.07 In. 41. 52 Ac-ft 12,190

Water year 1950-51: Max 250 Mln 3.9 Mean 16.4 Cfsm 2.98 In. 4O.34 Ac-ft 11,840

* Discharge measurement made on this day.

Mote. No gage-height record Nov. 21 to Dec. 13, Mar. 10, Mar. 24 to June 25; discharge estimated 

on basis of 3 discharge measurements and records for stations on nearby streams.
SHERWOOD CREEK BASIN 67

Mason Lake near Union, Wash.

Location. Lat 47° 19'15", long. 122°57'15", in SE£ sec. 8, T. 21 N., R. 2 W., en right 

shore 1\ miles southeast of Union.

Drainage area. 20.2 sq mi.

Records available. July to September 1951.

Gage. Staff gage read once daily. Altitude of gage is 190 ft (from topographic map).

Extremes.--Maximum gage height observed during period, 2.40 ft Sept. 29, 30; minimum 

observed, 1.93 ft Aug. 7, 8.

High water during period Mar. 25 to Apr. 1, 1951, reached a stage of 7.5 ft, from 

high-water marks.

Remarks.--Records good. No diversion. Beaver dams at outlet cause some change in lake 

elevation.

Gage height, in feet, July to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Dec. Jan. Feb. Mar. Apr. May June July

_

_

_

.

-

_

.

_

.

-

_

-

.

-

-

.

-

.

.

-

_

-

.

-

-

_

-

-

-

1.98

1.98

Ajg.

1.98

1.97

1.96

1.95

1.94

1.94

1.93

1.93

1.96

1.96

1.98

1.98

1.98

2.00

2.00

2.02

2.04

2.06

2.06

2.06

2.06

2.06

2.06

2.08

2.08

2.08

2.10

2.14

2.16

2.16

2.18

Sept.

2.18

2.19

2.20

2.20

2.22

2.24

2.28

2.28

2.28

2.28

2.29

2.30

2.30

2.32

2.32

2.32

2.32

2.32

2.32

2.32

2.34

2.34

2.34

2.34

2.33

2.32

2.30

2.32

2.40

2.40

-
68 SHUHOCHER CREEK BASIN

Shumocher Creek near Union, Wash.

Location. Lat 47°19'10", long. 122°59'20", in SWi sec. 7, T. 21 N , R. 2 W., on right 

bank a quarter of a mile upstream from mouth and 6 miles southeast of Union.

Drainage area. 12.2 sq mi.

Records available. June to October 1951 (discontinued).

gage. Water-stage recorder. Altitude of gage is 190 ft (from topographic map).

Extremes. Maximum discharge during period, 19.5 cfs Oct. 2 (gage height, 1.04 ft); minimum, 4.0 cfs Sept. 27 (gage height, 0.69 ft).

Remarks. Records excellent except those for periods of no gage-height record, which are 

fair. No regulation or diversion.

Discharge, in cubic feet per second, June to October 1951

Day

1

2 

3

4

5

6 

7

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

Cfsra

In.

Ac-ft

June

14.0

13.5 

13.5

14.5

15

15 

14.5

14

14

14

13.5

14

14

14

13.5

13.5

13.5

13.5

13.5

13.5

13.5 

12.5

12

12

12

12

*12

12

11,1

ITTs

-

399.5

13.3

1.09

1.22

792

July

11.5

11.5 

12

11.5

11.5

ftf

11.5

11.5

11.5

11

11

11

10.5

10.5

10.5

10

10

10

10

9.6 

9.6

*9.6

9.6

9.6

9.6

9.6

9.1

9.1

9.1

8.7

324.2

10.5

0.861

0.99

643

Aug.

8.7

f*

8.7

8.3

8.3 

8.3

8.3

8.

8.

8.

8.

8.

7.

7.

7.

7.

7.

7.

7.

7. 

7.

7.

*7.

7.

7.

!*_

8.

*7.

7.

7 ,

245.1

7.91

0.648

0.75

486

Sept.

6.6

6.6 

6.6

6.1

6.1

6.6 

7.4

7.9

7.0

7.0

6.6

6.6

6.1

6.1

6.1

6.1

5.7

5.7

6.1

5.7

H5.7

6.1

6.6

*5.7

5.7

9.1

12

16.5

-

206.7

6.89

0.565

0.63

410

Oct.

13.5

19 

15.5

9.6

7.4

7.0 

7.4

6.1

6.1

6.6

7.4

-

-

-

-

_

-

-

-

-

-

-

-

_

-

-

-

-

-

-

-

-

-

-

Calendar year : Max Min Mean Cfsm In. Ac-ft

Water year : Max Min Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

Note. No gage-height record June 1-13, 20-26, Aug. 17-23; discharge estimated on basis of records 

for stations on nearby streams.
DEER CREEK BASIN 69

Deer Creek near Shelton, Wash.

Location. Lat 47°16'00", long. 123°00'15", in Nw£ sec. 36, T. 21 N., R. 3 W. , on left 

bank three-quarters of a mile upstream from mouth and 6 miles northeast of Shelton.

Drainage area.--13.6 sq mi.

Records available.--December 1942 to September 1943, August 1948 to September 1951 (discontinued).

Gage. Water-stage recorder. Altitude of gage is 20 ft (from topographic map). Dec. 29, 

1942, to Sept. 30, 1943, staff gage at same site at different datum.

Extremes. Maximum discharge during period May to September. 95 cfs Sept. 29 (gage height, 

1.94 ft); minimum, 17.5 cfs part of each day Aug. 16-20 (gage height, 1.34 ft).

1942-43, 1948-51: Maximum discharge, 386 cfs Feb. 22, 1949 (gage height, 5.13 ft); 

minimum observed, 16 cfs Sept. 24, 25, 27-29, 1943.

Remarks. Records fair. No diversion or regulation.

Discharge, in cubic feet per second, May to September 1951

Day

1

2

3

4

5

7

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.

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May

.

-

..

-

-

_

_

-

-

-

.

~

-

-

-

.

_

-

-

-

_

-

_

34

32

30

29

29

29

28

27

:

-

June

27

26

26

28

 2£

28

26

26

26

25

24

25

24

24

23

23

24

25

25

25

25

24

23

24

23

23

 23

22

22

22

-

740 

24.7 

1.82 

2.02

1,470

July

23

23

24

23

25

27

24

23

23

22

21

21

21

21

20

19.5

19.5

19.5

20

20

19.5

19.5

*19.5

19.5

20

20

20

20

20

20

18.5

656.0 

21.2 

1.56 

1.79

1,300

A-J«.

18.5

18.5

19.5

19.5

18.5

18.5

18.5

18.5

19.5

19.5

19.5

19.5

19.5

19.5

19.5

18

18

10

18

18

18.. 5

18.5

18.5

18.5

19.5

18.5

19.5

25

22

21

21

597.0 

19.3 

1.42 

1.63

1,180

Sept.

21

21

21

20

20

20

24

24

22

21

20

20

19.5

19.5

18.5

18.5

18

18". 5

18.5

18.5

18

18

IS

18.5

21

*18.5

22

35

45

58

-

675.5 

22.5 

1.65 

1.85

1,340

Calendar year : Max Mln Mean Cfsm In. Ac-f;

Water year : Max Mln Mean Cfsm In. Ac-f;

* Discharge measurement made on this day.
70 CRANBERRY CREEK BASIN

Cranberry Creek near Shelton, Wash.

Location. Lat 47°16'00", long. 123°00'30", in tiw£ sec. 36, T. 21 N., R. 3 W., on left 

bank half a mile upstream from mouth and 6 miles northeast of Shelton.

Drainage area. 15.2 sq mi.

Records available. December- 1942 to September- 1943, August 1948 to September- 1951 (discontinued).

gage .--Water-stage recorder-. Altitude of gage is 25 ft (from topographic map). Prior to 

Sept. 30, 1943, staff gage at same site and datum.

Extremes. Maximum discharge during year, 860 cfs Feb. 9 (gage height, 7.12 ft); minimum, 

5.7 cfs Aug. 23 (gage height, 1.92 ft).

1942-43, 1948-51: Maximum discharge, that of Feb. 9, 1951; minimum, 4.7 cfs Sept. 

3, 11, 13, 1949 (gage height, 1.87 ft).

Remarks.--Records fair except those for periods of doubtful or no gage-height record, 

which are poor. Some diversion. No regulation.

Rating table, water year 195O-51 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Hov. 20 to Feb. 8)

1.9 

Z.I 

2.3

5.1

12

22

42

3.0 

3.5 

4.0 

4.5

81

145

220

310

5.0 

5.5 

6.0 

7.0

410

510

670

840

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

total

Mean

Cfsm

In.

Ac-ft

Oct.

9.5

9.1

9.1

11

13.5

13

23

19

18

64

37

28

22

18.5

16

14.5

13.5

17

26

22

18.5

16.5

15.5

16.5

15

18.5

28

41

43

43

49

708.2

22.8

1.50

1.73

1,400

Nov.

73

59

52

44

39

31

27

23

20

*18

17.5

17.5

17

16.5

58

48

40

48

76

102

151

152

187

198

228

182

146

114

109

-

2,320.5

77.4

5.09

5.68

4,600

Dec.

116

98

90

82

74

120

124

111 *104

115

100

81

65

56

70

86

123

112

96

99

123

129

178

22J3.

198

164

144

145

127

114

94

3,566

115

7.57

8.72

7,070

Jan.

79

114

168

145

123

102

86

74

65

62

63

58

77

83

144

172

205

182

169

146

205

212

188

176

187

212

188

154

124

102

85

4,150

134

8.82

10.15

8,230

Feb.

77

*134

182

178

152

132

175

212

*680

800

570

390

280

205

160

126

115

110

106

111

106

103

99

96

86

76

69

64

-

-

5,594

200

13.2

13.69

11,100

Mar.

60

57

55

59

55

52

49

48

*47

45

46

78

96

91

104

105

99

89

77

68

63

58

52

48

47

45

43

42

43

48

44

1,913

61.7

4.06

4.68

3,790

Apr.

42

41

40

38

34

34

32

31

30

30

28

28

25

26

a27

a28

*28

27

27

27

25

25

24

*22

21

21

27

37

31

29

-

885

29.5

1.94

2.17

1,760

May

SI

25

25

25

26

26

27

25

24

23

25

24

23

21

20

20

20

18

18

17.5

17.5

17.5

18

19

18.5

18

17.5 17'

17

15.5

15 - 5

650.5

21.0

1.38

1.59

1,290

June

15.5

15

15.5

15.5

11

16.5

 16

15.5

15.5

15.5

15.5

15.5

15

*14.5

14

13.5

13.5

13.5

13

13

12.5

11.5

12

11.5

11

10.5

10.5

9.8

9 .8

9.8

-

407.4

13.6

0.895

1.00

808

July

9.8

9.8

9.8

9.8

10

11

To

10

10

9.8

9.1

9.1

9.1

9.1

9.1

9.1

9.1

»8.4

8.4

7.8

7.8

7.8

* .8

.8

.5

.5

~.2

.8

.8

7.8

272.6

8.79

0.578'

0.67

541

Aug.

7.8

7.8

7.8

7.8

7.5

7.5

7.5

7.8

7.8

8.1

7.8

7.8

7.8

7.8

7.S

7.5

7.2

7.2

6.9

6.9

6.9

6.9

6.5

*6.9

6.9

6.9

7.8

10

8 .8

8.8

8.4

236.9

7.64

0.503

0.58

470

Sept.

8.4

8.4

8.4

7.8

7.8

8.1

9.5

9.5

9.1

8.4

8.1

7.8

7.5

7.5

7.5

7.5

7.5

7.2

7.2

6.9

6.5

6.5

6.9

7.2

8.1

*7.8

8.4

12

18

26

267.5

8.92

0.587

0.65

531

Calendar year 1950: Max 350 Mln 7.5 Mean 64.1 Cfsm 4.22 In. 57.25 Ac-ft 46,400

Water year 1950-51: Max 800 Mln 6.5 Mean 57.5 Cfsm 3.78 In. 51.31 Ac-ft 41,590

Peak discharge (base. 200 efs). Hov. 25 (9 p.m.) 260 cfs (4.75 ft); Dec. 24 (7:30 a.m.) 228 cfs 

(4.75 ft); Jan. 17 (6 a.m.) 205 cfs (4.76 ft); Jan. 22 (2:30 a.m.) 220 cfs (4.88 ft); Jan. 26 (8 a.m.) 

330 ofs (4.95 ft); Feb. 9 (10:30 p.m.) 860 cfs (7.12 ft).

* Discharge measurement made on.this day.

a Ho gage-height record; discharge estimated on basis of records for stations on nearby streams.

Note. Doubtful gage-height record Feb. 18 to Apr. 14; discharge estimated on basis of weather 

records and records for stations on nearby streams.
JOHNS CREEK BASIN 71

Johns Creek near Shelton, Wash.

Location. Lat 47°15'00", long. 123 "05 '15", In NE£ sec. 5, T. 20 N. , R. 3 W. , on left

 bank 2? miles upstream from mouth and 3 miles north of Shelton.

Drainage area. 17.7 sq mi.

Records available. December 1942 to September 1943, August 1948 to September 1951 (discontinued) .

Page Water-stage recorder. Altitude of gage is 200 ft (from topographic map). Prior

 Hio Sept. 30, 1943, staff gage at same site at different datum.

Extremes . Maximum discharge during periods October, May to September, 28 cfs S^pt. 29

 (gage height, 0.88 ft); minimum, 3.9 cfs Sept. 22 (gage height, 0.29 ft).

1942-43, 1948-51: Maximum discharge recorded, 211 cfs Mar. 5, 1950 (gage height, 

3.37 ft); minimum, that of Sept. 22, 1951.

Remarks. Records good. No diversion or regulation. 

Revisions. W 1182: Drainage area.

Rating table. May 24 to Sept. 30, 1951 (gage height. In 

feet, and discharge, In cubic feet per second)

0.30 

.40 

.50 

.70 

.90

4.1

6.1

8.7

16.5

29

Discharge, In cubic feet per second, May to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

total

Mean

Cfsm

In.

Ac-ft

Oct.

6.7

6.4

6.4

7.7

-

.

_

_

-

-

_

-

_

-

-

.

.

_

.

-

_

.

-

_

-

_

.

-

_

-

.

-

-

-

-

Nov. Dec.

Calendar year : Max

Jan. Feb. Mar. Apr. May

_

-

_

_

-

.

.

_

-

-

.

-

_

-

-

.

-

_

_

-

_

-

.

20

19

17.5

17

16.5 

15.5

15.5

15

-

-

-

-

-

Mln Mean Cfsm

June

15

15

14.5

14.5

16

*15.5

14.5

14.5

14

13.5

13.5

14

13.5

13.5

13

12.5

11.5

11.5

11

10.5

10

10

10

10

10

*10

10

ttf 9.6

-

370.3

12.3

0.695

0.78

734

July

9.3

9.6

9.6

9.6

9.9

10.5

9.9

9.9

9.6

9.6

8.4

8.4

8.4

8.4

8.4

8.1

7.9

7.9

7.9

7.9

7.6

7.6

7.6

*7.6

7.6

7.6

7.4

7.4

7.1

7.1

260.9

8.42

0.476

0.55

517

Aug.

7.1

7.1

6.8

7.1

6.8

6.6

6.6

6.3

6.6

6.6

6.8

6.6

6.6

6.3

6.3

6.1

5.9

6.3

5.9

5.9

6.1

5.9

5.7

*5.9

5.7

5.7

>6.3

8.7. 

7.9

7.6

6.8

202.6

6.54

0.369

0.43

402

Sept.

6.3

5.9

5.5

4.

4.

4.

5.

5.

5.

5.

'.5

^3_

.3

.3

.5

5.7

*5.5

7.4

10 

16.5

26

-

190.1

6.34

0.358

O.4O

377

In. Ac-ft

Hater year : Max Mln Mean Cfsm In. Ac-f:

* Discharge measurement made on this day. 

288995 O - 54 - 6
72 GOLDSBOROUGH CREEK BASIN

Goldsborough Creek near Shelton, Wash.

Location. Lat 47°12'50". long. 123 0 10'50", in southwest corner of sec. 15, T. 20 N., R. 

4 W., on right bank 3f miles west of Shelton and 5f miles upstream from mouth.

Drainage area. 31.7 sq mi.

Records available. June to September 1951.

Gage. Water-stage recorder. Altitude of gage is 205 ft (from topographic map).

Extremes. Maximum discharge during period, 101 cfs Sept. 30 (gage height, 2.72 ft); minimum, 16 cfs Sept. 23 (gage height, 1.75 ft).

Remarks. Records fair. No diversion or regulation.

Discharge, in cubio feet per second, June to September 1951

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

_

.

_

_

-

_

_

.

_

-

_

.

_

_

-

_

_

_

_

-

_

.

-

 31

30

29

29

28

27

-

_

-

_

_

-

Jily

28

28

27

27

28

29

28

27

27

26

26

24

24

25

24

24

24

 23

23

23

23

23

22 

22

22

23

22

21

5T

21

21

756

24.4

0.581

0.67

1,500

Aug.

21

21

21

21

21

21

21

21

21

20

20

20

20

20

19.5

20

20

20

20

19.5

19

 19

19 

19

18.5

19

19.5

22 »5T

21

21

626.0

20.2

0.481

0.55

1,240

Sept.

21

21

21

20

19.5

19.5

24

24

21

19.5

16.5

18.5

18

17.5

17.5

17.5

17.5

17.5

16

17.5

17.5

17.5

ft..

26

22

 22

38

45

83

695.0

23.2

0.552

0.62

1,380

Calendar year : Max Mln Mean Cfsm In. Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.
QOLDSBORODOH CREEK BASIN 73

Goldsborough Creek at Shelton, Vfesh.

Location. Lat 47°12'30", long. 123°06'00", In NE£ sec. 19, T. 20 N. , R. 3 W., on right 

bank at upstream side of railroad bridge in Shelton, 1 mile upstream from muth.

Drainage area. 44.8 sq mi.

Records available. December 1942 to September 1943, June to September 1951 (d'scontinued),

Sage. Water-stage recorder. Altitude of gage is 20 ft (from topographic map). Prior 

to Sept. 30, 1943, staff gage at downstream side of bridge at different dat-jm.

Extremes. Maximum discharge during period, 48 cfs Sept. 30 (gage height, 2.14 ft); minimum, 4.9 cfs Aug. 22, 23 (gage height, 1.00 ft).

1942-43, 1951: Maximum discharge observed, 950cfsPeb. 6, 1943 (gage height, 3.96 

ft, site and datum then in use); minimum, that of Aug. 22, 23, 1951.

Remarks. Records good. Possibly up to 30 cfs diverted for use in lumber and pulp industry during June and July and possibly 15 cfs during August and September according 

to employees of companies involved. No regulation.

Discharge, In cubic feet per second, June to September 1951

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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct. Nov. Dec.

Calendar year : Max

Jan. Feb.

Mln

Mar.

Mean

Apr. May

Cfsm

June

a32

a31

a30

a29

a30

*28

27

26

25

24

23

23

23

23

22

20

19.5

19.5

19.5

19.5

18

18

18

17.5

17.5

17.5

17.5

*17

17

16

668.0

22.3

0.405

0.45

1,320

In.

July

17

17.5

16

24

30

28

23

15

12.5

17.5

16

13.5

13

13

13

12.5

12

12

11.5

 10.5

10

10

9.9

9.6

9.6

9.6

10

9.4

9.4

10.5

11

436.5

14.1

0.256

0.30

866

Aug.

10

10

10.5

10.5

11

8.7

7.3

7.1

7.1

7.3

7.3

7.1

7.5

7.5

7.1

6.9

7.1

6.9

6.7

6.9

5.4

 5.3

5.2

5.2

5.3

5 0

5.4

6.7

5.6

5.7

5.6

220.9

7.13

0.130

0.15

438

Sept.

5.4

5.6

6.6

7.7

6.7

7.7

9.2

8.7

7.9

7.7

7.7

7.7

6.4

5.7

5.2

5.2

5.4

5.4

5.3

5.3

5.3

5.2

5.3

5.7

6.9

5.9

 6.6

13

23

ii

250.4

8.35

0.152

0.17

497

Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby atrea
?4 MILL CREEK BASIN

Mill Creek at Shelton, Wash.

Location. Lat 47 0 11'45", long. 123 e05'45", in NW£ sec. 29, T. 20 N. , R. 3 W. , on right 

bank a quarter of a mile south of Shelton and 2j miles downstream frcm Lake Isabella.

Drainage area.--19.5 sq mi.

Records available. December 1942 to September 1943, May to September IE'51 (discontinued).

Gage. Water-stage recorder. Altitude of gage is 110 ft (from topograpMc map). Prior 

Tfo Sept. 30, 1943, staff gage at same site at different datum.

Extremes.--Maximum discharge during period not determined, probably occurred sometime

during period of no gage-height record Sept. 27-30; minimum, 11.5 cfs Aug. 22-27, Sept. 

20-25 (gage height, 1.38 ft).

1942-43, 1951: Maximum discharge observed, 474 cfs Feb. 7, 1943 (gage height, 3.40 

ft, datum then in use); minimum observed, 11 cfs Sept. 15, 1943 (gage height, 0.59 ft, 

datum then in use).

Remarks.--Records excellent except those for period of no gage-height record, which are 

good. No diversion or regulation.

Discharge, in cubic feet per second, May to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ao-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May

.

-

_

_

-

_

_

.

_

-

_

_

_

-

-

_

_

-

-

-

.

-

-

-

-

_

-

-

31

31

30

.

_

_

-

June

29

ZB

28

28

28

*27

26

25

25

25

24

24

24

24

24

23

22

22

21

21

21

20

20

19.5

18.5

*18.5

18

18

18

18

-

687.5

22.9

1.17

1.31

1,360

Jvly

18

17.5

17.5

17

17.5

18

18.5

18

18

18

17

16

16

15.5

15.5

15

15

14.5

14

14

14

14

14

14

*13.5

14

14

14

14

13.5

13.5

483.0

15.6

0.800

0.92

958

Aug.

13.5

13.5

13.5

13.5

13

13

13

13

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12

12

12

12

12

 11.5

11.5

11.5

11.5

11.5

12

13.5

13

13

12.5

387.5

12.5

0.641

0.74

769

Sept.

12.5

12.5

12.5

12.5

12

12

12.5

13

13

13

13

13

12.5

12.5

12

12

12

12

12

11.5

11.5

11.5

11.5

11.5

12

12.5

12.5

a!8

a25

a40.

-

414.0

13.8

0.708

0.79

821

Calendar year : Max Min Mean Cfsm In. Ac-ft

Water year j Max Min Mean Cfsm In. Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby strea
SKOOKUM CREEK BASIN 7! 

Skookum Creek at Kamilche, Wash.

Location.--Lat 47°07'30", long. 123°06'50", In NW£ sec. 19, T. 19 N., R. 3 W., on right 

bank three-quarters of a mile southwest of Kamilche and 3 miles upstream f^om mouth.

Drainage area. 17.2 sq ml.

Records available. June to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 35 ft (from topographic map).

Extremes. Maximum discharge during period, 33 cfs Sept. 30 (gage height, 2.37 ft); mlnImum, 0.7 cfs Sept. 16 (gage height, 1.36 ft).

Remarks.--Records excellent. No diversion or regulation.

Discharge, In cubic feet per second, June to September 1951

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

.

-

-

.

-

-

_

-

-

.

-

-

-

-

_

-

-

-

-

.

-

-

-

-

.

-

2.8

2.6

-

_

_

_

-

July

2.6

2.6

2.7

2.6

 2.7

H2.3

.3

.3

.9

.8

.9

.1

.0

.0

.9

.0

.0

.0

.9

.9

» .8

.8

.9

.9

.9

.8 

1.8

1.8

i±l

66.2

2.13

0.124

0.14

131

Aug.

.7

.8

.8

.8

.7

.7 

.7

.7

.8

.9

.8

.8

.8

.7

.6

.5

.5

.5

.4

.4

.4

.3

.3

» .3

.4

.4

.5 .-if

.7

.7

51.2

1.65

0.096

0.11

102

Sept.

1.7

.7

.6

.4

.3

.4 

.0

.3

.8

.5

.4

.3

.3

.2

.1

.1

.3

.3

.4

.3

.3

.3

.3

.4

.8

.9

* .0

.7 

.2

14.5

-

69.8

2.33

0.135

0.15

138

Calendar year : Max Hln Mean Cfsm In. Ac -ft

Water year : Max Mln Mean Cfsm In. Ac-ft

Discharge measurement made on this day
76 KENNEDY CREEK BASIN

Kennedy Creek near New Kamilohe, Wash.

Location. Lat 47°05'.30", long. 123°05'45", in NE£ sec. 31, T. 19 N., R. 3 W., on left 

bank 1 mile south of New Kamilche and 2 miles upstream from mouth.

Drainage area. 18.7 sq mi.

Records available.--May to September 1951.

Gage. Water-stage recorder. Altitude of gage is 30 ft (from topographic map).

Extremes.--Maximum discharge during period, 14 cfs Sept. 30 (gage height, 1.88 ft); mini- 

 mum, 2.8 cfs Aug. 23-27 (gage height, 1.53 ft).

Remarks.--Records excellent. Small amount of diversion for irrigation. No regulation.

Discharge, in cubic feet, per second May to September 1951

Day

1

Z

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

19 

20

21

22

23

24

25

26

27

29

30

31

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May

_

.

_

_

-

_

_

_

_

-

_

-

.

_

-

_

_

_

_

-

_

_

.

12.5

12

11

11

11.5

11

11

_

_

_

_

-

June

10.5

10

9.8

9.8

*10

10

10

9.8

9.4

9.1

8.8

8.8

8.8

8.8

8.1

7.8

8.5

11.5

12

11.5

9.8

7.5

6.9

6.9

 6.6

6.6

6.3

6.0

6.0

5.7

-

261.3

8.71

0.466

0.52

518

July

5.7

5.7

5.7

5.7

6.0

1^1 6.6

6.3

5.7

5.7

5.4

5.1

5.1

5.1

4.8

4.5

4.5

 4.5

4.8

5.1

5.1

5.1

5.1

5.1

4.8

4.8

4.5

4.5

4.5

4*2

4.2

160.8

5.19

0.278

0.32

319

Aug.

4.2

4.2

4.2

4.2

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

»3.

1*8

2.8

2.8

2.8

3.4

£il

3.9

3.4

3.4

111.6

3.60

0.193

0.22

221

Sept.

3.4

3.4

3.4

3.4

3.4

3.4

4.2

4.5

3.9

3.6

3.4

3.4

3.4

3.4

3^1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.4

4.2

4.2

 3.6

6.0

7.2

JL2

"

118.7

3.96

0.212

0.24

235

Calendar year : Max Mln Mean Cfsm In. Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

Discharge measurement made on this day.
DESCHDTES RIVER BASIN 77

Deschutes River near Rainier, Wash.

Location. Lat 46°51 '10" long. 122°40'00", in SW£ sec. 22, T. 16 N., R. 1 E., on right 

bank half a mile downstream from mouth of outlet from Reichel Lake and Z\ miles southeast of Rainier.

Drainage area.--88.7 sq mi (revised).

Records available. June 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is about 350 ft (from topographic map).

Extremes.--Maximum discharge during year, 3,570 cfs Feb. 9 (gage height, 10.60 ft); minimum, 26 cfs parts of each day Sept. 21-25 (gage height, 2.65 ft).

1949-51: Maximum discharge, 3,940 cfs Dec. 28, 1949 (gage height, 11.06 ft); minimum, that of Sept. 21-25, 1951.

Remarks. Records good. Probably some diversion for irrigation and domestic ur<e. No regulation.

Rating table, water year 1950.51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.6 

2.8 

3.0 

3.3 

3.6

117

182

4 0

4 5

5 0

5 5

284

423

579

758

955

1,170

1,400

1,910

2,510

3,150

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

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

30

31

fetal 

Mean

Cfsm

In.

Ac-ft

Oct.

41

39

68

109

83

78

91

242

298

159

113

102

104

86

78

90

137

182

144

115

98

86

111

184

429

935

752

468

408

5,908 

191

2.15

2.48

11,720

Nov.

380

483

380

300

257

218

201

184

 168

152

141

133

121

ii£

240

1,080

816

562

366

699

1.550

1,300

1,080

1,350

1,060

816

1,120

796

579

666

-

17,111 

570

6.43

7.17

33,940

Dec.

758

562

613

1,060

875

1,080

1,120

875

684

546

530

483

423

394

408

546

596

514

453

453

596

658

"915 1.350

648

498

438

438

 423

438

423

19', 7 98 

639

7.20

8.30

39,270

Jan.

394

1,070

1.380

835

613

483

408

366

335

319

316

298

324

423

1,150

1,080

1,080

702

530

475

1,320

938

666

758

1,020

1,080

758

546

438

380

344

20,829 

672

7.58

8.73

41,310

Feb.

330

705

995

796

596

514

665

1,120

 2.660

2,400

2,510

1,770

1,020

739

630

546

483

468

438

498

468

423

380

346

324

300

279

262

.

-

-

22,665 

809

9.12

9.50

44,960

Mar.

252

234

224

241

236

224

211

206

201

192

187

338

666

546

*1.040

1,000

613

468

394

394

438

453

394

358

341

341

327

303

319

394

394

11,929 

385

4.34

5.00

23,660

Apr.

355

327

330

358

338

306

284

273

257

236

221

 228

252

252

234

221

216

201

189

170

155

146

141

131

127

127

131

189

206

173

-

6,774 

226

2.55

2.84

13,440

May

146

135

127

139

184

159

159

144

133

131

166 iai 164

141

127

 117

113

109

104

98

95

93

95

98

104

93

88

86

88

88

Ifi

3,789

1.38

1.59

7,520

June

21

70

68

68

68

69

68

66

62

62

60

62

61

58

57

56

54

53

52

52

50

49

49

50

49

48

46

45

44

44

-

1,712 

57.1

0.644

0.72

3,400

Calendar year 1950: Max 3,080 Mln 28 Mean 375 Cfsm 4.23 In.

July

43

43

43

42

43

15

43

42

44

43

43

40

42

41

41

41

40

39

 40

40

39

40

39

40

40

40

39

39

38

38

26

1,266 

40.8

0.460

0.53

2,510

A'i«.

36

36

35

35

33

33

32

33

33

33

33

33

33

32

32

32

 31

31

31

31

30

29

30

29

28

29

30

46

M

38

33

1,028 

33.2

0.374

0.43

2,040

Sept.

33

32

31

30

29

30

31

39

40

32

30

29

28

30

27

27

27

27

27

27

27

2g

27

26

28

36

31

32

49

109

997 

33.2

0.374

0.42

1,980

57.27 Ac-f; 271,500

Water year 1950-51: Max 2,660 Mln 26 Mean 312 Cfsm 3.52 In. 47.71 Ao-f: 225,800

Peak discharge (base. 2.000 efsK Feb. 9 (10:30 p.m.) 3,570 cfs (10.60 ft). 

* Discharge measurement made on this day.
78 DESCHUTES RIVER BASIN

Desohutes River near Olympia, Wash.

Location. Lat 47°00<40", long. 122°53<40". in NW^SEj sec. 35, T. 18 N., R. 2 W., on left 

bank l| miles upstream from mouth and 2^ miles south of Olympia.

Drainage area.--164 sq mi.

Records available.--April 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 80 ft (from topographic map).

Average discharge. 6 years, 434 cfs.

Extremes. Maximum discharge during year, 4,600 cfs Feb. 10 (gage height, 7.92 ft); minimum, 96 cfs Sept. 17-19, 21, 22 (gage height, 2.00 ft).

1945-51: Maximum discharge, that of Feb. 10, 1951; minimum, 66 cfs Oct. 11, 1946.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

Small diversions above station for irrigation. No regulation.

Rating tables, water year 1950-51 (gage height, In feet, and

2.2

2.4

2.7

3.0

3.3

3.6

Oct. 1

109

148

217

300

390

480

to Feb. 9

4.0

4.5

5.0

5.5

6.0

7.0

640

875

1,140

1,440

1,780

2,850

Feb. 10 to Sept.

2.0

2.2

2.4

2.7

3.0

3.3

3.6

96

132

176

250

340

430

540

4.0

4.5

5.0

5.5

6.0

7.0

8.0

30

700

930

1,180

1,470

1,780

2,850

4,900

ischarge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

26

29

30

31

Ttotal

Mean

Cfam

In.

Ac-ft

Oct.

118 

117

115

118

136

177

175

159

168

230

415

271

212

186

186

175

166

168

200

240

233

205

186 

17 C

166

233

289

90C

90C

62C

52C

8,154

263

1.6C

1.8E

16,170

Nov.

465 

56O

500

415

363

324

297

280

 260

246

235

222

217

210

227

932

1,050

850

580

640

,320

,570

.60C 

,570

,600

,290

,230

,320

975

90C

-

22,248

742

4.52

5.05

44.13C

Dec.

1,140 

975

900

1,200

1,350

1,320

1.500

1,410

1,110

925

800

775

680

640

620

725

825

775

680

640

775

825

1,500 

1,470

1,050

825

 750

702

702

680

680

28,949

934

5.7C

6.56

57,42C

Jan.

620

861

2.040

1,440

1,020

825

725

660

600

560

540

520

520

600

1,020

,540

,710

,290

,000

850

,310

,780

,230 

,080

,380

1,540

1,260

975

800

702

660

31,658

1,021

6.23

7.1£

62.79C

Feb.

1,380 m

1,260

1,000

825

850

1,410

2,580

4.200

 3,200

3,360

2,140

 1,530

1,290

1,160

1,060

1,000

955

955

955

880

808 

762

720

680

660

620

_

_

-

37,635

1,344

8.20

8.53

74,650

Bar.

600 

560

540

560

580

540

520

520

500

482

465

 640

1,100

1,000

1,160

1.620

1,080

880

785

740

762

785

740 

680

660

640

620

580

580

640

660

22,219

717

4.37

5.04

44,070

Apr.

620 

580

560

580

580

540

500

500

465

448

424

421

430

444

424

406

397

385

370

355

331

a3OO

a280 

a270

a260

a260

a300

 319

a330

325

-

12,404

413

2.52

2.81

24,600

May

307 

292

280

289

528

316

313

298

28O

271

292

325

316

286

268

253

248

242

238

230

225

220

220 

225

225

222

212

210

210

208

208

8,057

260

1.59

1.83

15,980

June

ffi

188

 188

188

186

186

181

178

174

171

171

167

164

160

160

158

155

155

153

151

151

149

151

147

147

145

142

138

138

-

4,930

164

1.00

1.12

9,780

July

136 

136

136

158

136

138

138

136

134

130

128

128

126

126

126

126

124

124

122

«122

121

122

121 

121

121

121

121

119

117

117

115

3,926

127

0.774

C.89

7,790

Aug.

115

115

115

115

113

113

113

111

111

113

113

113

113

111

111

110

110

108

108

108

106

106

106 

106

106

104

108

117

 126

119

111

3,454

111

0.677

0.78

6,850

Sept.

110

111

108

106

104

104

106

108

111

111

 104

103

101

101

99

98

96

96

9698-

96

98

98 

99

103

103

111

110

121

124

-

3,134

104

0.634

0.71

6,220

Calendar year 1950: Max 3,540 Mln 106 Mean 576 Cfsm 3.51 In. 47.67 Ac-ft 416,800

Water year 1950-51: Max 4,200 Mln 96 Mean 512 Cfsm 3.12 In. 42.35 Ac-ft 370,400

Peak discharge (base. 2.000 cfs).--Jan. 3 (lO:3Oa.m.) 2,250 cfs (6.49 ft); Jan. 22 (1:30 a.m.) 

',140 cfs (6.41 ft); Feb. 10-(11 a.m.) 4,600 cfs (7.92 ft). 

 Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for station near Rainier.
WOODLAND CREEK BASIN 

Woodland Creek near Olympia, Wash.

79

Location. Lat 47°04'20" > long. 122°49'00", in SW£ sec. 4, T. 18 N., R. 1 W., on left bank 

1 mile upstream from mouth and 4.4 miles northeast of Olympia.

Drainage area.--24.3 sq mi (revised).

Records available. June 1949 to September 1951.

Page. Water-stage recorder. Altitude of gage is 25 ft (from topographic map).

Extremes . Maximum discharge during year, 204 cfs Feb. 9 (gage height. 4.46 ft); minimum, 

TTF-ofs Sept. 15 (gage height, 1.45 ft).

1949-51: Maximum discharge, that of Feb. 9, 1951: minimum, 10 cfs Sept. 23, 1949 

(gage height, 1.39 ft).

Remarks. Records good except those for periods of shifting control, which are fair. Some 

diversion for domestic use. No regulation.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge. In cubic feet per second)

1.5 

1.7 

2.0 

2.3

12

19.5

33

49

2.6 

3.0 

3.5 

4.1

92

127

175

Discharge, In cubic feet per second, water year October 1950 to September 19"!

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

total 

Mean

Cfsm

In.

Ao-ft

Oct.

17

17

16.5

16

19

17

17.5

17

17

IS

17.5

17

17

17

16

16

16

17

17.5

16.5

16

15.5

15

15

15.5

16

20

24

21

19.5

18.5

543.5 

17.5

0.720

0.83

1,080

Nov.

26

21

19.5

18.5

18

17.5

17

16.5

TST5

*17

17

17

17

17

19.5

24

26

22

21

26

28

31

30

32

34

29

32

30

27

40

707.0 

23.6

0.971

1.08

1,400

Dec.

40 

33

36

42

36

47

48

42

41

39

38

36

34

34

38

40

41

38

37

38

37

53

77

67

61

 56

53

53

51

50

47

1,383 

44.6

1.84

2.12

2,740

Jan.

66

63

60

57

53

51

50

49

48

49

47

47

49

72

78

84

75

74

71

11

99

88

85

83

83

78

74

71

69

68

2,085 

67.3

2.77

3.19

4,140

Feb.

SI 

81

86

81

77

75

81

84

*175 T5*5

163

151

135

124

116

110

110

102

99

102

96

91

87

85

84

82

79

77

.

-

-

2,859 

102

4.20

4.38

5,670

Mar.

78 

75

74

77

76

74

72

73

72

71

73

 §9 99

 91

99

92

88

84

81

79

78

75

72

71

70

69

67

66

67

66

£3.

2,391 

77.1

3.17

3.66

4,740

Apr.

II

60

59

58

57

56

54

54

54

53

52

52

51

50

50

50

49

48

48

47

47

47

15

45

45

 47

47

45

45

-

1,540 

51.3

2.11

2.36

3,050

May

44 

42

42

47

45

45

45

43

42

41

42

42

40

40

40

38

38

38

36

36

34

34

34

34

34

34

33

33

32

32

li

1,191 

58.4

1.58

1 1.82

2,360

June

32 

*32

li

34

34

34

34

34

33

33

33

33

32

32

31

31

30

30

29

29

28

28

28

28

26

27

26

26

25.

25

-

910 

30.3

1.25

1.39

1,800

July

ft

24

24

24

24

23

23

23

23

22

22

22

22

21

21

21

21

20

19.5

*19.5

19.5

19.5

20

20

20

19.5

19.5

19.5

19.5

12

664.0 

21.4

0.881

1.02

1,320

Aug.

18.5 

18

18

18

18

18

17.5

18

18

18

17.5

17.5

17

17

17

16.5

16

16

16

15.5

15.5

15

15

15

15

15

15.5

17

15.5

15.5

15.5

515.5 

16.6

0.683

0.79

1,020

Sept.

15 

15

15

14.5

14.5

14.5

15

15

15

15

 14.5

14.5

14

13.5

13.5

13.5

13.5

13

13

13

13

12.5

13.5

14

15

14

15

16

16.5

11

431.0 

14.4

0.593

0.66

855

Calendar year 1950: Max 113 Mln 15 Mean 39.5 Cfsm 1.63 In. 22.05 Ao-ft 28,570

Water year 1950-51: Max 175 Mln 12.5 Mean 41.7 Cfsm 1.72 In. 23.30 Ao-ft 30,180

Peak discharge (base. 110 cfs). Jan. 21 (11:30 p.m.) 110 ofs (3.23 ft); Feb. 9 (1:31 p.m.) 204 

cfs (4.46 ft); Mar. 12 (7 p.m.) 113 ofs (3.28 ft). 

* Discharge measurement made on this day. 

Note. Shifting-control method used Oct. 1 to Dec. 22, Mar. 17 to July 18, Aug. 1 to Sept. 28.
80 MoALLISTER CREEK BASIN

McAllister Springs near Olympia, Wash.

gatlon. Lat 47°01 I 45", long. 122°43'25", in SE£ sec. 19, T. 18 N., R. 1 E., on right 

side of stilling pool Just above city of Olympia control gates, 8 miles east of 

Olympia.

Records available. March to September 1951.

Gage..--Water-stage recorder. Altitude of gage is about sea level, 

age recorder 30 ft downstream from base gage.

Auxiliary waterExtremes.. Maximum discharge during period, 44 cfs Mar. 25 (gage height, 4.32 ft); maximum gage height, 4.60 ft July 6; minimum discharge, 22 cfs Sept. 25; minimum gage 

height, 2.73 ft June 30.

Remarks. Records good except those for periods of estimated discharge, which are fair. 

City of Olympia diverts 2 to 8 cfs for municipal use. Gage pool regulated by low 

dam and flashboards. Backwater from tides occurs daily.

Discharge, In cubic feet per second, March to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct. Nov.

t31

-

Dec.

Calendar year : Max

Jan.

t39

Feb.

t36

-

-

-

Mar.

-

_

_

-

_

_

_

_

-

_

_

t40

_

_

_

_

35

36

36

36

36

38

37

36

34

35

35

34

_

_

-

Apr.

35

"35

36

35

34

35

35

34

33

33

33

32

33

33

33

32

34

34

34

34

34

35

35

34

34

 33

35

34

33

1.02O

34.0

3,030

Mln Mean

May

34 

33

32

33

33

34

33

33

32

32

33

33

33

31

30

3O

31

31

30

32

32

 31

35

33

33

33

"34"

32

33

30

1,005

33.4

1,990

June

31 

 29

3O

31

32

32

32

32

30

30

31

32

31

30

30

29

31

30

30

28

29

30

29

31

29

29

29

29

29

29

-

904

30.1

1,790

July

f

28

28

28

28

28

28

28

27

27

27

27

37

27

36

36

 26

 26

27

26

36

27

37

26

26

27

26

26

834

26.9

1,650

Aug.

II

26

26

SI

27

35

25

26

27

27

27

26

25

26

35

35

25

36

25

25

25

25

35

25

26

26

27

37

27

27

801

25.8

1,590

Sept.

27 

27

27

26

26

26

26

27

28

7f

36

26

25

36

25

25

25

 25

25

25

26

25

25

25

2*

25

26

35

26

26

-

773

25.8

1,53O

Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day. 

t Result of discharge measurement.

Note. Stage-fall-discharge relation Indefinite June 26 to July 20, July 24, 25, Aug. 1O, 11, 21- 

24L, Sept. 15-19; discharge Interpolated or estimated on basis of pumping records furnished by city

of Olympia.
NISQUALLY RIVER BASIN 81

NlBqually River near National, Wash.

Location. Lat 46°45'50", long. 122°05'00", In SW$3Wi sec. 29, T. 15 N., R. 6 E., on right 

Bank 100 ft downstream from railroad bridge, 1 mile west of National, 2i miles west of 

Ashfork, and 3 miles upstream from Mineral Creek.

Drainage area. 133 sq ml.

Records available. May 1942 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 1,410 ft (from topographic map).

Average discharge. 9 years, 762 cfs.

Extremes. Maximum discharge during year, 7,170 cfs Feb. 11 (gage height, 8.75 ft); minimum, 249 cfs Aug. 31, Sept. 1, 2 (gage height, 3.26 ft).

1942-51: Maximum discharge, 9,610 cfs Nov. 27, 1949 (gage height, 9.60 ft); minimum 

not determined, probably less than 135 cfs during period of doubtful gage-height record 

Oct. 2-30, 1942.

Remarks 

Mouni

Jcs. Records good. No diversion. Slight regulation at low flow by powerplant of 

,ount Rainier National Park on Paradise River.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

3.2

3.5 

3.8 

4.1 

4.5 

5.0 

5.5

232

325

442

587

828

1,190

1,620

6.0 

6.5 

7.0 

7.5 

3.0 

8.4

2,160

3,790

3,510

4,350

5,330

6,210

Discharge, In cubic feet per second, water year October 1950 to September IS"51

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

Cfam

In.

Ac-ft

Oct.

283

fiC r o

425

648

626

882

932

808

1.760

1,350

967

744

683

571

501

478

561

642

648

556

511

469

451 

707

648 

876

1,040

967

882

 757

21,939

708

5.32

6.13

43,520

MOV.

889

1,080 

1,770 

1,480

1,310

1,040

932

802

701

654

592

545

511

482

511

571

535

487

451

604

889

1,780

1,980

3.280 

3, MB

2,790 

3,000

2,160

1,580

1,350

-

37,896

1,263

9.50

10.60

75,170

Dec.

1,150

967 

952 

1,3TO

1,400

2,160

2,160

1,620

1,530

1,480

 1,530

1,440

1,190

1,040

1,040

1,080

1,120

1,000

1,040

1,120

1,270

1,720

5.920

27600 

1,980

1,480 

1,270

1,190

1,150

1,120

1,000

45,009

1,452

10.9

12.59

89,270

Jan.

1,000

1,190 

1,150 

967

815

726

672

609

566

540

516

482

530

561

757

707

 683

592

535

506

648

551

501

720 

1,080

1.400 

1,150

896

757

677

609

23,093

745

5.60

6.46

45,800

Feb.

592

763 

713 

636

577

577

1,120

1,820

4,800

 5,230

6.210

3,280

2,040

1,530

1,270

1,040

932

835

751

707

620

571

530

506 

487

460 

425

 408

.

.

-

39,430

1,408

10.6

11.03

78,210

Mar.

396

373 

373 

380

361

339

329

329

315

305

302.

380

460

434

751

744

609

545

535

592

631

604

545

521 

521

535 

506

487

511

525

497

14,735

475

3.57

4.12

29,230

Apr.

492

521 

631 

796

835

835

896

896

862

 828

842

1,040

1,270

1.400

1,310

1,270

1,310

1,230

1,040

876

757

695

654

648 

683

726 

763

848

802

720

-

26,476

883

6.64

7.40

52,510

May

636 in862

1,000

1,000

1,040

1,000

967

1,190

1.950

1,530

1,230

1,000

889

967

1,190

*1,150

1,000

1,000

1,040

1,230

1,480

1,350 

1,230

967 

889

828

720

636

598

31,734

1,024

7.70

8.87

62,940

June

636

683 

732 

732

744

763

789

744

789

835

855

876

932

1,000

1.150

1,120

1,000

932

896

896

896

896

896

932

835

835 

842

876

932

967

26,011

867

6.52

7.27

51,590

July

932

896 

757

626

561 sei 511

530

677

677

 689

744

744

720

672

732

726

592

540

556

609

660

642 

609

551 

561

566

556

540

556

20,129

649

4.88

5.63

39,930

Aug.

571

530 

516 

511

497

497

501

492

506

545

525

451

413

442

492

492

492

497

525

571

 620

540

425

.373 

380

400 

392

446

315

289

258

K,504

468

3. 52

4.06

28,770

Sept.

155

258 

283 

315

354

408

434

417

392

417

 318

332

400

438

446

464

478

464

446

434

384

392

377

357

451

302

270

318

361

896

11,861

395

2.97

3.32

23,530

Calendar year 1950: Max 3,920 Mln 270 Mean 1,017 Cfsm 7.65 In. 103.76 Ac-ft 736,000

Water year 1950-51: Max 6,210 Mln 255 Mean 657 Cfsm 6.44 In. 87.48 Ac-ft 620,500

* Discharge measurement made on this day.
82 NISQUALLY RIVER BASIN

Mineral Creek near Mineral, Wash.

Location. Lat 46°44'20", long. 122°08'20", in 'SW£ sec. 35, T. 15 N., R. 5 E., on right 

bank three-eighths of a mile downstream from railroad bridge, 1 mile upstream from 

mouth, and 2^ miles northeast of Mineral.

Drainage area. 75.0 sq ml.

Records available. June 1942 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,340 ft (from topograpl ic map).

Average discharge. 9 years, 367 cfs.

Extremes. Maximum discharge during year, 5,390 cfs Feb. 9 (gage height, 7.65 ft), from 

rating curve extended above 3,500 cfs; minimum, 23 cfs Aug. 19, 21, 23, 24 (gage height, 

1.46 ft).

1942-51: Maximum discharge, that of Feb. 9, 1951; minimum, 23 cfs Sept. 10-13, 1944, 

Aug. 19, 21, 23, 24, 1951.

Remarks. Records good. No diversion or regulation.

Rating table, water year 1950-51 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Jan. 26 to Feb. 18, Mar. 15-17, 21, 

22, Apr. 3-19, 28, May 5, 11, 12, July 21 to Aug. 27, Aug. 30 

to Sept. 7, Sept. 9-25, 27)

1.3 

1.5 

1.7 

2.0 

2.3

112

192

2.6 

2.9 

3.2 

3.6 

4.0

291

408

543

750

990

4.5 

5.0 

6.0 

7.5

1,360

1,780

2,770

4,650

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

56

54

204

284

220

246

256

635

696

434

324

277

233

204

195

270

288

288

256

230

210

190

195

200 

350

620

720

 648

558

9,657

312

4.16

4.79

19,150

Nov.

664

750

654

572

501

430

412

379

348

317

298

274

253

2J6

295

451

434

371

324

638

1,100

1,360

1,360

2.450

1,870

1,520 

1,690

1,280

958

865

-

23,054

768

10.2

11.43

45,730

Dec.

750

597

618

958

958

1,440

1,480

1,130

990

865

835

750

638

563

607

675

723

623

572

572

*723

990

1.960

1,360

1,020

778 

723

750

723

696

592

26,659

860

11.5

13.22

52,880

Jan.

577

1,020

1,130

778

612

505

434

388

348

332

317

284

363

447

618

582

633

478

388

348

520

460

379

805

1,360

1.690 

1,130

805

638

534

447

19,350

624

8.32

9.60

38,380

Feb.

412

723

835

691

563

*496

1,060

2,050

4.650

*3,460

4,370

2,150

1,400

1,020

835

675

607

538

478

478

417

363

328

306

288

253 

223

21i

_

-

29,883

1,067

14.2

14.82

59,270

Calendar year 1950: Max 2,990 Mln 31

Mar.

195

180

178

180

169

160

152

150

141

131

129

554

438

388

835

778

582

474

442

474

529

501

434

404

396

396 

379

363

383

430

388

11,063

357

4.76

5.49

21,940

Apr.

375

396

501

607

597

563

582

558

529

501

501

592

723

778

723

691

680

628

538

*447

396

351

328

321

328

348 

375

492

447

379

-

15,275

509

6.79

7.57

30,300

May

328

306

306

430

524

478

474

417

396

438

618

534

434

363

328

324

344

306

266

246

246

249

270

260

*240

223 

201

198

208

175

147

10,277

332

4.43

5.10

20,380

June

139

131

129

136

139

141

141

139

117

106

102

102

99

91

86

82

76

71

67

64

 61

59

58

57

56

56 

54

52

50

41

2,710

90.3

1.20

1.34

5,380

July

48

48

47

48

48

50

48

46

44

42

42

40

39

39

39

 39

40

40

39

36

35

34

34

34

32

34 

34

32

31

31

32

1,225

39.5

0.527

0.61

2,430

Aug.

32

31

31

31

31

29

27

27

29

29

29

30

29

29

27

27

26

M

24

24

24

24

 24

24

24

24 

24

58

41

35

32

900

29.0

0.387

0.45

1,790

Sept.

30

29

27

26

26

26

29

46

35

30

29

27

26

26

26

26

26

26

24

24

24

24

24

24

35

42 

34

45

52

310

-

1,178

39.3

0.524

0.58

2,340

Mean 497 Cfsm 6.63 In. 90.02 Ac-ft 360,000

Water year 1950-51: Max 4,650 Mln 24 Mean 414 Cfsm 5.52 In. 75.00 Ac-ft 300,000

Peak discharge (base. 2.700 cfs). Nov. 24 (5 a.m.) 2,880 cfs (6.10 ft)j Feb. 9 (5 p.m.) 5,390 cfs 

(7.65 ft).

* Discharge measurement made on this day.

Note. No gage-height record Oct. 22-29, June 21 to July 12; discharge estimated on basis of record for Tllton River near Clnebar.
NISQOALLY RIVER BASIN 

Alder Reservoir at Alder, Wash.

Location. Lat 46°48'05", long. 122°18'30", In NW£ sec. 9, T. 15 N., R. 4 E., at Alder 

Dam on Nlsqually River, 1 mile west of Alder and 4| miles upstream from Mashel River.

Drainage area.--286 sq ml.

Records available. November 1944 to September 1951.

Gage. Water-stage recorder. Datum of gage Is that used by city of Tacoma, which is 7.91 

Tt below mean sea level, datum of 1929 (levels by city of Tacoma). Prior to July 8, 

1946, staff gage at same site and datum.

Extremes. Maximum contents during year, 213,100 acre-ft Aug. 28, 29 (gage height, 

1,200,78 ft); minimum, 158,280 acre-ft Apr. 3 (gage height, 1.180.01 ft).

1944-51: Maximum contents, 220,320 acre-ft July 26, 1950 (gage height, 1,203.23 

ft); minimum observed (since reservoir first filled), 93,990 acre-ft Feb. 16, 1949 

(gage height, 1,147.61 ft).

Remarks. Reservoir is formed by Concrete arch dam; storage began Nov. 7, 1944; dam compleTed in 1945. Capacity, 158,700 acre-ft between gage heights 1,114 ft (lower limit 

of operating range) and 1,200 ft (top of spillway gates). Dead storage, 52,100 acreft. Water is used by city of Tacoma for power development. Figures given herein 

represent total contents.

Capacity table (gage height, in feet, and contents, in acre-feet) 

(Prepared by city of Tacoma from project surveys and maps)

1,180

1,190

1,200

1,205

158,260

183,270

210,840

225,640

Qage height, at 12 p.m., In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

192.42

191.83

191.16

190.80

190.85

190.71

191.15

191.92

192.10

193.93

195.22

195.79

196.04

196.05

195.81

 195.57

195.12

194.91

195.09

195.18

195.15

194. 76

194.16

193.50

193.40

193.47

194.47

195.29

195.16

194.25

-193.13

Nov.

192.38

191.90

191.89

191.56

191.02

190.59

190.71

190.81

190.74

190.61

190.72

190.93

190.52

189.92

189.5S

189.47

189.40

189.22

188.97

189.08

190.33

192.17

193.59

195.38

194.99

193.49

193.43

192.61

190.82

189.69

Dec.

189.57

190.37

190.79

190.87

190.72

191.19

190.90

189.61

189.07

189.23

189.84

190.51

190.78

190.78

191.14

191.32

191.28

190.66

190.09

189.60

189.38

190.23

192.10

190.79

188.94

188.16

188.08

188.30

188.54

188.89

188.87

Jan.

189.06

190.10

190.93

190.96

190.54

190.23

189.72

189.23

189.03

188.87

188.62

188.36

188.55

189.04

189.82

190.36

190.94

191.17

191.13

191.22

191.89

191.91

191.69

192.39

192.85

192.80

192.06

191.09

190.61

190.31

189.81

Feb.

189.38

190.01

190.69

191.26

191.25

191.19

192.76

193.95

196.77

196.08

196.46

196.46

195.82

194.17

192.97

192.08

191.80

192.70

192.92

193.18

193.14

193.03

192.67

192.32

192.24

191.86

191.38

190.82

-

-

Mar

190.24

189.61

189.05

188.88

188.10

187.32

186.48

185.68

184.80

183.95

183.41

182.91

182.66

182.34

183.26

183.82

'183.96

184.00

183.80

183.67

183.68

183.53

183.26

182.97

182.81

182.52

182.17

181.74

181.41

181.02

180.75

Apr.

180.52

180.22

180.12

180.36

180.77

181.14

181.49

182.36

182.65

182.78

182.78

183.06

183.79

184.65

185.50

186.00

186.58

186.94

186.93

186.73

186.35

186.06

185.. 52

185.02

184.56

184. 14

183.86

184.01

184.01

183.74

-

May

183.33

182.84

182.28

182.13

182.66

183.23

183.21

183.28

183.42

183.98

185.28

186.14

187.26

187.42

187.20

186.98

186.92

186.91

187.02

187.76

187.61

187.68

188.01

188.14

188.18

188.15

188.68

188.39

188.12

188.29

187.96

June

187.56

187.87

187.82

187.40

187.10

186.68

186.36

186.13

186.33

186.77

187.06

187.32

187.51

187.78

187.95

188.62

189 . 20

189.10

189.33

189.77

190.15

190.58

191.01

191.48

191.80

192.18

192.50

192.88

193.35

193.72

-

July

194.18

194.56

194.94

195.24

195.40

195.53

195.59

195.68

195.75

195.93

196.14

196.29

196.58

196.82

197.01

197.20

197.45

197.57

197.70

197,78

197.89

198.03

198.19

198.42

198.62

198.64

198.72

198.85

199.10

199.17

199.22

Auf.

199.18

199 . 23

199.33

199.38

199.45

199.48

199.56

 199.59

199.63

199.70

199.83

199.90

199.85

199.87

199 . 90

199.93

200.00

2OO.04

200.17

200,24

200.47

200,57

200.54

200 . 53

200.51

200.64

200,71

200,78

200 , 69

200.63

200.53

Sept.

200.39

200.26

200.18

200.10

200.10

200.11

200.19

200.21

200.18

200.09

199.94

199.77

199.41

198.12

199.17

199.21

198.89

198.52

198.21

197.87

197.47

197.43

197.10

196.62

196.13

195.48

194.76

194.15

194.17

194.97

-

Note. Add 1,000.00 ft to obtain gage height.

Monthly gage height and contents, water year October 1950 to September 1951

Date

Dec. 31...................

Calendar year 1950. .....

Sept. 30.. .................

Water year 1950-51......

Oage height 

(feet)t

1,188.87

-

1,194.97

-

Contents 

(acre-feet)

180,380

-

196,250

-

Change In contents 

during month 

(acre-feet)

-2,100

+52,800

-16,130

+5,510

t Qage height and contents at 12 p.m.
84 HISQUALLY RIVER BASIN

Nlsqually River at La Qrande, Wash.

Location. Lat 46°50'30", long. 122°19'40". In SE$ sec. 29, T. 16 N., R. 4 E., on right 

bank half a mile downstream from city of Tacoma powerplant, half a mile northwest of 

La Orande, and three-quarters of a mile upstream from Ifeshel River.

Drainage area. 292 sq mi (revised).

Records available. September 1906 to December 1911 (fragmentary), Octoter 1919 to September 1931, December 1943 to September 1951. Published as "near La Orande" 1906-11, 

1919-31.

Page.--Water-stage recorder. Altitude of gage Is 490 ft (from topograpHe map). Sept. 

5, 1906, to Sept. 8, 1910, staff gage just below site of diversion dam 4 miles upstream 

at different datum. January 1910 to December 1911, staff gage at La Orande powerhouse 

site; datum at mean sea level (levels by city of Tacoma). January 1£20 to September 

1931, water-stage recorder at approximately same site as that of firs t staff gage at 

datum 921.17 ft above mean sea level (levels by city of Tacoma). Dec. 7, 1943, to 

Jan. 12, 1945, water-stage recorder 600 ft downstream from La Orande powerhouse at 

different datum.

Average discharge. 22 years (1906-8, 1909-10, 1919-31, 1944-51), 1,368 cfs.

Extremes. Maximum discharge during year, 15,400 cfs Feb. 10 (gage height, 8.50 ft); mln- 

 imum, 193 cfs Jfer. 11 (gage height, 2.27 ft); minimum dally, 414 cfs Sept. 5, 6, 8.

1906-10, 1919-31, 1943-51: Maximum discharge, 19,500 cfs Dec. 12, 1921 (gage height,

15.6 ft, site and datum then In use); practically no flow on many occasions at site

near La Orande as result of regulation.

Remarks. Records good except those for period of shifting control, which are fair. Flow 

regulated by city of Tacoma powerplant at La Orande since February 19«4, by Alder Reservoir (see p. 83 ) since November 1944, and by La Orande Reservoir (rsable capacity, 

1,050 acre-ft) since 1944.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2 

3

4 

5

6

7

8

9

1O

11

12

13

14 

15

16

17

IB

19 

20

21

22

23

24

25

26 

27 

28

29

30 

31

Total

Mean

Jte-ft

(t)

Oct.

944

1,060 

1,160

982 

1,000

1.18O

742

488

1,635

973

839

850

883

1,090 

1,15O

1,110

1,330

1,160

938 

1,000

997

1,230

1.47O

1,470

1,290

1,060 

1,060 

1,69O

2,590

3,140 

3.210

39,116

1,262

77.59O

+689

Nov.

 3.21O

3,150 

3,010

2,990 

2,910

2,450

1,690

1,580

1,530

1,510

1,190

973

1,550

1,770 

2,010

2,O7O

1,910

1.7OO

1,640 

2,080

1,95O

2,520

3,000

5,020

6,730

7.520 

6, 040 

5,430

5,440

4,560

89,213

2,974

177,000

-8,934

Dec.

2,970

1.500 

1,640

3,290 

3,550

4,530

5,410

5,360

4,020

2,86O

2,440

2,080

2,070

2,430 

2,010

2,330

2,720

 3,080

2,960 

2,980

3,010

2,850

4,950

6.820

57i55

4,O6O 

2,760 

2,410

2,320

2,240 

2,420

100,280

3,235

198,900

-2,115

Jan.

2,23O

2,720 

2,740

2,770 

2,680

2,340

2,360

2,240

1,780

1,67O

1,670

1,660

1,340

1.180 

17755

1,870

1.74O

1,620

1,710 

1,540

1,700

1,900

1,950

1,960

3,260

4.690 

4,190 

3,570

2,670

2,200 

2,160

69, 830

2,253

138,500

+2,464

Feb.

2,150

1,820 

1,800

1,530 

1,890

1,350

1,460

4.O3O

»8, 55O

12,600

14.100

8, 726

5,890

5,900 

4,720

3,600

2,650

Z2i

1,460 

1,360

1,560

1,510

1,730

1,620

1,190

1,570 

1,570 

1,610

~

99,211

3,543

196, 8OO

+2,435

Mar.

1,590

1,580 

1,540

 1.060 

17710"

1,660

1,710

1,680

1,700

1,620

 1,300

1,650

1,680

1,670 

1,710

1,680

1,580

1.40O

1,660 

1,640

1,690

1,730

1.71O

1,630

1,480

1,660 

 1,670 

1,690

1,720

1.810 

1,630

5O, 24O

1,621

99, 650

-25, 380

Apr.

1,500

1,680 

1,650

1,680 

1,47O

1,500

1,39O

941

1,355

1,610

»1, 69O

1,600

1,63O

1,600 

1,480

1,770

1,76O

1,810

1.940 

1,936

1,S6O

1,610

1,830

1,780

1,890

1,780 

1,820 

1,760

1,680

1,8OO

49,821

1,661

98,820

+7,313

May

1,79O

1,810 

1,800

1,830 

1,530

1,120

1,680

1,660

1,430

1,38O

1,570

1,47O

606

1,390 

1,750

1,770

1.870

1,700

1,430

557

1,630

1,710

1,680

1,740

1,670

1,370 

673 

 1,540

1,500

750 

1,350

45,736

1,475

9O.72O

+10,800

June

1,46O

732 

970

1,580 

1,470

1.590

1,480

1,320

767

552

788

774

938

848 

1,170

555

537

1,260

844

553

553

576

532

5SS" 490

553 

560 

546

525

525

25, 601

853

SO, 780

+14, 750

July

476

504

525

511

511

511

511

511

476

 483

490

490 

490

483

483

483

476 

476

483

476

504

476

497

462 

448 

455

134

463 

511

15, 183

49O

30, 120

+15,470

Aug.

469

462

455

455 

434

455

448

455

490

455

441

434

455

448 

441

 434

427

427

m

441

441

483

441

441

434

m455

455 

469

14,007

452

27,780

+3,730

Sept.

455

441 

448

441 

414

414

420

414

420

576

568

593

865

889 

460

454

919

992

912 

918

934

480

850

1,050

1,220

1,190 

1.250 

1,210

475

639

21,311

710

42,270

-15,750

Adjusted for change in reservoir contents

Mean

Cfsm

In.

Ao-ft

1,273

4.36

5.03

78,280

2,825

9.67

1O.79

168,100

3,201

11.0

12.64

196,800

2,293

7.85

9.05

141,000

3,587

12.3

12.79

199,200

1,2O8

4.14

4.77

74,270

1,783

6.11

6.81

106,100

1,651

5.65

6.52

101,500

1,101

3.77

4.21

65,530

741

T.54

?.93

45,590

512

1.75

2.02

31,51O

446

1.53

1.70

26, 520

Calendar year 195O: Max 

Water year 195O-51: Max

7,520 

14,100

Mln 

Mln

389

414

Mean 1, 

Mean 1,

,942 

,697

Ac -ft 

Ac -ft

1,406,OOC 

1,229,OOC

Adjusted

Calendar year 1950: Mean 

Hater year 1950-51: Mean

2,015 

1,705

Cfsm 

Cfsm

6.90 

5.84

In. 

In.

93.67 

79.26

Ac -ft 

Ac -ft

1,459, 

1,234,

OOC 

OOC

 Discharge measurement made on this day.

t Change In contents in Alder and La Qrande Reservoirs, equivalent in acre-feet.

Note.. Shifting-control method used Oct. 1 to Feb. 9, Hay 31 to Sept. 30.
NISQUALLY RIVER BASIN. 85

Mashel River near La Grande, Wash.

i.~Lat 46°51'25" (revised), long. 122°18'05" (revised), In NE£ sec. 21, T. 16 N., 

"~ . on right bank 50 ft below bridge, 2 miles upstream from mouth, an<? 2 miles 

northeast of La Grande.

Drainage area. 80.7 sq mi (revised).

Records available. October 1940 to September 1951.

. Water-stage recorder. Datum of gage is 619.53 ft above mean sea level, datum of 

'929, supplementary adjustment of 1947.

Average discharge.--11 years, 223 cfs.

Extremes.--Maximum discharge during year, 2,880 cfs Feb. 11 (gage height, 7.19 ft); minimum, 5.0 cfs Sept. 4 (gage height, 1.96 ft).

1940-51: Maximum discharge, 7,980 cfs Dec. 11, 1946 (gage height, 9.30 ft), from 

rating curve extended above 3,200 cfs; minimum, that of Sept. 4, 1951.

Remarks. Records good except those for periods of shifting control, which arr fair, and 

those for periods of no gage-height record, which are poor. Small diversion for city 

of Eatonville water supply. Some regulation at low water by millpond in Estonville.

Rating tables, water year 1950-51, except periods of shifting control (gag"? 

height, In feet, and discharge, In cubic feet per second)

Oct. 28 to Sept. 30

2.3 

2.5 

2.8 

3.1 

3.5 

4.O

1O8 

195 

335 

545

1.9

2.0 

2.2 

2.4 

2.6 

2.8 

3.1

5.0

10.5

28

57

97

145

231

3.5 

4.0 

4.5 

5.0 

5.5 

6.0 

6.6

365

560

790

1.O6O

1,370

1,740

2,260

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7 

8

9

10

11 

12

13

14

15

16

IT

18

19

2O

21

22 

23

24 

25

26

27

28

29

30

31

Total

Mean

Cf am

In.

Ac-ft

Oct.

42

33 

30

35

122

ISO

132 

189

201

371

351 

198

135

135

130

101

96

119

111

124

108

91 

78

65 

130

158

427

695

515

396

334

5,824

188

2.33

2.68

11,550

Nov.

 368

532 

480

396

330

263

247 

231

201

184

169 

161

148

142

156

628

544

372

280

189

94O

1.47O 

1,166

1,18O 

1,000

765

94O

718

548

628

-

15,530

518

6.42

7.16

3O,8OO

Dec.

628

472 

540

605

865

940

 94O 

718

592

476

436 

390

334

306

36f

424

408

396

340

33O

334

482 

970

718 

592

472

4O4

4O4

390

428

382

16,078

519

6.43

7.41

31,890

Jan.

574

1.210 

970

695

508

390

327 

293

260

247

244 

228

273

390

790

 650

650

440

337

361

1,000

605 

440

695 

940

915

628

444

365

289

250

16,408

529

6.56

7.56

32 , 540

Feb.

237

480 

516

404

323

316

725 

1,030

 1,940

1,620

2.220 

1,370

815

6OO

5 2O

416

358

327

286

a260

a210

a!80 

a!60

a!40 

a!30

allO

alOO

a90

-

-

15,883

567

7.03

7.32

31,500

Mar.

84

74 

70

80

76

70

61 

61

59

55

 4§§

556

428

814

718

484

368

337

376

432

408 

340

313 

316

39O

358

310

316

372

334

9,132

295

3.66

4.21

18,110

Apr.

299

330 

348

.432

1595

337

337 

310

273

237

 225 

296

372

354

320

3O6

296

253

207

164

135

115 

106

1O2 

155

115

125

244

266

178

-

7,578

253

3.14

3.49

15.O3O

May

138

122 

113

161

250

195

225 

204

169

178

455

3 2O

231

 175

156

150

130

113

99

97

97 

1O8

125

138

104

89

82

86

 72

15

5,152

166

2.06

2.37

10,220

June

57

54 

54

57

68

97

ffi

95

80

72 

74

66

61

54

51

43

40

37

34

32

31 

28

27 

25

24

22

21

25

22

-

1,581

52.7

0.653

0.73

3,140

July

18

18 

18

18

20

18

Lu2

15.5

15.5

15

 16.5 

16.5

16.5

16.5

15.5

15.5

15

14

13.5

13.5

13.5

13 

13

13.5 

14

13.5

13

12

12

10.5

10

454.2

14.7

O.182

0.21

901

Aug.

10

10 

10

8.8

8.8

9.4

10.5 

10.5

11

11

11 

11

 10.5

10

10

10

10

10

10

9.4

8.8

8.8 

8.8

a8. 5 

a'§75

a9.0

a!2

57

31

21

17

392.3

12.7

O.157

0.18

778

Sept.

15

13 

12

10

10

10

8,8 

28

21

15.5

14 

13.5

13

11

10.5

10

9.4

8.3

8.8

7.8

7.2

*f

7.8 

28

a45

a22

a!9

a5O

a25O

-

691.8

23.1

0.286

0.32

1,370

Calendar year 1950: Max 2,310 Mln 13 Mean 3O6 Cfsm 3.79 In. 51.52 Ac-ft 221,800

Water year 195O-51: Max 2,220 Mln 6.6 Mean 259 Cfsm 3.21 In. 43.64 Ac-ft 187,800

Peak discharge (base. 1.500 cfs). 

(5.85 ft); Feb. 11 (2:30 p.m.) 2,880

Nov. 22 (2 p.m.) 2,080 cfs (6.31 ft); Jan. 2 (2 p.m.) 1,62O cfs 

cfs (7.19 ft).

Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

stations on nearby streams.

Note.--Shifting-control method used Oct. 28 to Jan. 1, Feb. 9-19, Mar. 1-15, Aug. 13-23, Aug. 28 

to Sept. 25.
86 NISQUALLY RIVER BASIN

Ohop Creek near Eatonvllle, Wash.

.--Lat 46°52'50", long. 122°16'38", in SE£ sec. 10, T. 16 N., R. 4 E., on left 

400 ft downstream from Lynch Creek, 600 ft downstream from outlet of Ohop Lake, 

and 1 mile northwest of Eatonvllle.

Drainage area.--35.0 sq mi.

Records available. June 1927 to September 1932, September 1941 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 519.8 ft above mean sea level (from

stadia traverse). June 1, 1927, to Sept. 30, 1932, water-stage recorder at same site 

at datum 2.79 ft higher. Sept. 6, 1941, to Mar. 17, 1942, staff gage at present site 

and datum.

Average discharge. 15 years, 65.1 cfs.

Extremes. Maximum discharge during year, 1,020 cfs Feb. 11 (gage height, 4.55 ft, from 

graph based on fragmentary gage-height record), from rating curve extended above 530 

cfs; minimum, 3.6 cfs Aug. 21, 22, 23, 25, 26, 27 (gage height, 1.52 ft).

1927-32, 1941-51: Maximum discharge, 1,600 cfs Dec. 11, 1946 (ga^e height, 5.97 

ft); minimum, 2.3 cfs Aug. 22, 23, 1944.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No diversion.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second)

1.5 

1.7 

1.9 

2.1 

2.4

3.0 

10.5

2.7 

3.0 

3.3 

3.6 

4.0

147

225

330

460

670

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

"total

Mean

Cfsm

In.

Ac-ft

Oct.

19.5

18.5

17

19.5

39

49

34

58

53

140

115

77 

64

65

65

55

49

46

46

48

44

39

36

33

38

42

76

127

109

 96

84

1,801.5

58.1

1.66

1.91

3,570

Nov.

98

138

107

91

82

73

65

61

53

48

45

42 

39

37

44

113

127

121

96

115

255

326

338

362

335

255

280

231

189

184

-

4,353

145

4.14

4.63

8,630

Dec.

197

169

211

'2§5 370

310

*283

225

184

152

129

119 

107

98

91

91

89

87

85

81

84

109

269

208

187

157

138

125

113

123

125

5,014

162

4.63

5.33

9,950

Jan.

181

326

356

258

217

179

154

138

121

111

101

92 

98

125

189

 184

237

189

161

143

286

243

197

240

258

246

200

159

127

115

101

5,682

183

5.23

6.04

11,270

Feb.

92

115

145

147

136

125

164

189

*388

406

642

m266

222

189

166

154

149

143

132

117

105

100

92

89

*79

68

.

-

-

5,653

202

5.77

6.01

11,210

Mar.

68

65

60

55

60

55

55

55

50

50

50

70

150

170

200

fso" 350

180

120

110

110

100

100

90

85

85

80

75

75

70

65

3,158

102

2.91

3.36

6,260

Apr.

65

65

65

65

60

60

55

50

50

*48

48

49 

50

48

48

44

37

35

35

34

33

30

30

29

28

26

26

30

39

32

-

1,314

43.8

1.25

1.40

2,610

May

29

27

26

27

32

28

28

27

26

25

15

67 

48

*42

37

33

30

27

26

24

23

22

22

27

36

28

24

24

25

22

li

956

30.8

0.880

0.102

1,900

June

19.5

17

16.5

15.5

15.5

14.5

14.5

13.5

12

12

15.5

f

23

22

20

18.5

17

16.5

15.5

14.5

13.5

13.5

12.5

12

11

11

10.5

10

9.8

467.8

15.6

0.446

0.50

928

July

8.9

*7.1

6.6

7.1

7.1

7.6

7.1

6.6

6.6

6.6

7.1 

13

12

11

11

10.5

10

9.8

9.8

9.4

8.9

8.9

8.9

8.4

8.4

8.0

8.0

8.0

7.6

7.1

263.3

8.49

0.243

0.28

522

Aug.

6.6

5.6

5.2

4.9

4.6

4.3

4.3

4.3

4.6

4.9

4.9

4.9 

4.9

4.9

*4.9

5.2

4.6

4.6

4.6

4.6

AO

475

4.9

4.3

4.0

4.0

4.3

15 

6.2

5.6

164.2

5.30

0.151

0.17

326

Sept.

4.9

4.6

4.9

T73

4.3

4.6

9.8

8.9

12

10.5

10 

9.8

9.8

9.8

8.9

8.4

8.4

8.4

8.4

8.0

7.6

7.6

11

31

28

23

23

24

M

372.2

12.4

0.354

0.40

738

Calendar year 1950: Max 578 Min 4.3 Mean 91.9 Cfsm 2.63 In. 35.62 Ac-ft 66,500

Water year 1950-51: Max 654 Min 4.0 Mean 80.0 Cfsm 2.29 In. 31.05 Ac-ft 57,910

Peak discharge (base. 270 cfs).--Nov. 22 (about 5 p.m.) 480 cfs (3.64 ft); Dec. 4 (about 9 a.m.) 

428 cfs (3.53 ft); Dec. 23 (about 1 a.m.) 326 cfs (3.29 ft)} Jan. 2 (about 4 p.m.) 406 cfs (3.48 ft)j 

Jan. 21 (about 1 p.m.) 346 cfs (3.34 ft); Feb. 11 (about 5 p.m.) 1,020 cfs (4.55 ft); probably Mar. 

16 (time unknown) 402 cfs (3.47 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Mar. 2 to Apr. 9; discharge estimated on basis of recorded range In 

stage and records for stations on nearby streams.
NISQUALLY RIVER BASIN 87

Nisqually River near McKenna, Wash.

Location. lat 46°51'15", long. 122°27'10", in SE£ sec. 20 T. 16 N., R. 3 E., on right 

Dank 800 ft downstream from Elbow Creek, three-quarters of a mile upstream from 

Tanwax Creek, and 7.4 miles southeast of McKenna.

Drainage area. 445 sq mi.

Records available. August 1941 to September 1951.

Gage. Water-stage recorder. Datum of gage is 373.6 ft above mean sea level (from stadia 

traverse). Prior to Oct. 1, 1941, staff gage at same site and datum.

Average discharge. 10 years, 1,723 cfs.

Extremes. Maximum discharge during year, 17,700 cfs Feb. 11 (gage height, 11.37 ft): 

minimum, 364 cfs July 17; minimum daily, 416 cfs Sept. 6.

1941-51: Maximum discharge, that of Feb. 11, 1951; minimum, 85 cfs Oct. 19, 1945 

(gage height, 2.57. ft); minimum daily, 176 cfs Jan. 30, 1945.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Water diverted above station by Yelm Irrigation District. Major portion of flow r-*- 

gulated by Alder iReservoir and city of Tacoma powerplant at La Grande.

Discharge, In oublo feet per second, water year October 1950 to September 1951

Day

1

2 

3

i 

5

6 

7

8 

9

10

11

12

13

14

15

16 

17

18 

19

20

21

22

23

24 

25

26 

27

28

29

30

31

Total 

Mean

Ac- ft

Oct.

1,020

1,150 

1,250

1,140 

1,220

1,530 

1,010

708 

1,3TO

1,470

1,450

1,200

1,140

1,350

1,480

1,350 

1,590

1,480 

1,200

1,250

1,300

1,500

1,730

1,760 

1,660

1,370 

1,580

3,440

3,240

3.560

37415

48,858 

1,576

96,910

Nov.

3,360

*3,480 

3,250

3,170 

3,030

2,580 

1,680

1,560 

1,460

1,430

1,130

§82

1,460

1,600

1,980

2,460 

2,290

1,930 

1,660

2,310

2,770

3,860

4,440

6,530 

8,180

8.740 

7,800

6,500

6,300

5,630

-

103,492 

3,450

205,300

Dec.

4,030

1.940

'§7§J5

4,760 

4,770

5,640 

6,710

*6,600 

5,360

3,660

3,100

2,620

2,530

2,530

2,440

2,810 

3,350

3,650 

3,460

3,430

3,490

3,430

6,060

8.210 

7,420

4,960 

3,450

2,930

2,770

2,700

2,870

124,060 

4,002

246,100

Jan.

2,790

4,270 

4,350

3,950 

3,550

2,960 

2,820

2,700 

2,120

1,960!

1,950

1,910

1.620

1,620

2,490

2,520 

2.520

2,100 

*2,090

1,890

2,980

2,760

2,530

2,700 

4,390

6.140 

5,250

4,270

3,170

2,450

2,400

91,220 

2,943

180,900

Feb.

2,370

2,330 

2,360

2,030 

2,240

2,170 

2,220

5,180 

10,500

*14,800

16.100

10,766

6,810

6,380

5,300

4,100 

3,310

1.490 

2,010

1,970

2,030

2,000

2,130

2,080 

1,620

1,920 

1,910

1,900

-

-

-

119,960 

4,284

237,900

Mar.

1,880

*1,870 

1,760

1.410 

1,936

- 1,960 

1,930

1,940 

1,960

1,870

1,570

2,220

2,570

2,400

2,790

2.810 

2,400

2,050 

2,190

2,220

2,400

2,500

2,300

2,200 

2,000

2,100 

2,200

2,100

2,100

2,400

2,100

66,130 

2,133

131,200

Apr.

1,900

2,100

2,100

2.200 

2JOOO

1,900 

1,800

1.400 

1,600

1,800

1,900

1,900

*2,000

2,020

1,870

2,090 

2,050

2,040 

2,180

2,110

2,050

1,630

1,960

1,910 

2,030

1,910 

1,960

1,990

1,990

2,000

- x

58,590 

1,953

116,200

May

1,960

1,950 

1,920

1,980 

1,810

1,440 

1,760

1,940 

1,630

1,570

1,980

1,940

1,020

1,600

1,850

2.000 

*1,940

1,930 

1,620

150

1,610

1,770

1,750

1,790 

1,830

1,510 

846

1,540

1,600

890

1,420

51,146 

1,650

101,400

June

1,510

825 

998

1,550 

1,510

1.650 

1,580

1,450 

930

624

864

848

1,030

956

1,240

636 

537

1,300 

927

565

545

556

526

155

526 

526

520

495

501

-

26,719 

891

53,000

July

443

501 

508

520 

520

520 

501

514 

514

520

478

*495

495

501

501

495 

489

495 

489

489

489

489

526

489 

508

489 

478

483

443

501

552

15,435 

498

30,610

Aug.

501

489 

483

483 

454

473 

483

478 

501

483

472

449

483

478

478

472 

472

472 

443

*478

472

466

478

454 

449

432 

"SSS 539

520

495

495

14,863 

479

29,480

Sept.

483

460 

449

460 

426

*

443 

443

604

613

641

944

1,010

500

454 

996

1,110 

1,060

1,000

1,020

497

869

1,120 

1,320

1,360 

1.560

1,280

521

694

22,974 

766

45,570

Calendar year 1950: Max 8,740 mn 350 Mean 2,329 Ac-ft 1,686,000

Water year 1950-51 : Max 16,100 Mln 416 Mean 2,037 Ac-ft 1,475,000

Discharge measurement made on this day.

££. No gage-height record Mar. 21 to Apr. 13r discharge estimated on basis of records for

by stations.

288995 O-54-7*
88 NISQUALLY RIVER BASIN

Nisqually River at MoKenna, Wash.

Location ( revised).- -La t 46°56'00", long. 122°33'35", In SE^NWi sec. 28, T. 17 N., R. 2 

B. , on left bank 100 ft downstream from bridge at McKenna and 8| miles downstream from 

Tanwax Creek.

Drainage area. 517 sq mi (revised).

Records available. October 1947 to September 1951.

Gage. --Water-stage recorder. Altitude of gage Is 275 ft (from topographic map).

Extremes . Maximum discharge during year, 16,900 cfs Feb. 11 (gage height, 11.30 ft); miniroum, 92 cfs Sept. 5 (gage height, 1.42 ft).

1947-51: Maximum discharge, that of Feb. 11, 1951; minimum, 42 cfs Sept. 19, 1948 

(gage height, 0.98 ft).

Remarks . Records good except those for periods of shifting control, which are fair. 

Major portion of flow regulated by Alder Reservoir and city of Tacoma powerplant at 

La Grande. Yelm Irrigation project and Centralla power canal divert vater above 

station.

Rating table, water year 1950-51, except periods of shifting control (gage 

height. In feet, and discharge, In cubic feet per aecond)

1.4 

1.6 

1.8 

2.0 

2.2 

2.5

133

194

274

370

550

2.8 

3.1 

3.5 

4.0 

4.5 

5.0

765

1,020

1,400

1,930

2,530

3,200

3,910

4,680

6,460

8,560

12,100

16,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

AO-ft

Oct.

738

752

912

850

907

1,130 

750

936

1,080

1,160

875

796

926

1,170

1,030

1,150

1,180

916

917

882

1,090

1,330

1,400 

1,350

1,050 

1,160

1,980

2,840

5.110 

3,080

37,812

1,220

75,000

Nov.

2,990

3,140

2,910

2,800

2,700

2,340 

 1,370

1,290 

1,170

1,120

842

£42

1,040

1,250

1,600

2,180

2,000

1,710

1,430

1,980

2,570

3,480

4,120

5,620 

7,150

7.590 

6,970

5,760

5,520

5,070

90,352

3,012

179,200

Dec.

3,860

1.860

2,066

4,270

4,300

5,070 

6,160

5,820 

4,710

3,280

2,800

2,290

2,240

2,230

2,140

2,380

2,980

 3,160

3,100

3,070

3,070

3,000

5,000

7.200 

6,590

4,530 

3,180

2,600

2,470

2,400 

2,570

110,390

3,561

219,000

Jan.

2,440

3,670

3,900

3,580

3,260

2,660 

2,530

2,420 

1,800

1,710

1,650

1,590

1,360

1.340

2,200

2,400

2,460

2,050

 1,990

1,700

2,690

2,700

2,420

2,490 

3,680

5.460 

4,770

3,860

3,090

2,280 

2,200

82,350

2,656

163,300

Feb.

2,130

2,150

2,180

1,920

2,050

2,000 

2,060

4,150 

 8,890

14,100

15.500

12,000

7,210

6,560

5,580

4,170

3,440

1,470

1,840

1,820

1,810

1,760

1,830

1,830 

1.380

1,640 

1,610

1,560

-

114,540

4,091

227,200

Mar.

1,580

*1,550

1,490

1.090

1,590

1,640 

1,610

1,610 

1,610

1,540

1,240

1,910

2,400

2,200

2,530

2.660 ITflo

1,820

1,910

1,950

1,980

2,020

1,950

1,820 

1,700

1,770 

1,840

1,790

1,790

2,020 

1,760

56,630

1,827

112,300

Apr.

1,600

1,710

1,730

1.810

1,610

1,600 

1,450

1.150 

1,266

1,470

1,596

 1,580

1,590

1,640

1,490

1,690

1,690

1,660

1,800

1,750

1,690

1,470

1,540

1,550 

1,640

1,540 

1,580

1,590

1,610

1,650

47,730

1,591

94,670

May

,600

,590

,560

,620

,500

,320 

,230

1.690 

1,266

1,250

1,570

1,630

840

1,100

1,380

 1,640

1,590

1,590

1,290

557

1,090

1,360

1,350

1,400 

1,460

1,170 

578

1,080

1,220

577 

982

40,094

1,293

79,530

June

1,100

525

638

1,030

1,200

1.210 

1,200

1,100 

700

348

458

460

603

604

801

399

227

814

604

297

236

249

217

m

550 

498

425

209

194

17,585

586

34,880

JU1T

161

191

191

205

205

205

191

198 

198

198

178

191

194

194

198

178

174

174

 171

171

164

168

184

171 

178

168 

161

161

it! 171

5,597

191

11,110

Aug.

221

168

158

158

150

144 

153

147 

168

155

150

131

139

147

139

139

 141

139

122

131

136

128

136

128 

124

108 

158

168

181

155 

153

4,575

148

9,070

Sept.

153

128

128

133

105

91 

112

128 

128

212

234

254

420

561

270

138

444

637

598

568

574

256

356

619 

856

m869

343

272

11,400

380

22,610

Calendar year 1950; Max 10,100 Mln 158 Mean 2,091 Ac-ft 1,514,000

Water year 1950-51: Max 15,500 Mln 97 Mean 1,696 Ac-ft 1,228,000

 Discharge measurement made on this day.

»ot«. Shifting-control method used May 27 to Aug. 12, Aug. 22 to Sept. 30.
CHAMBERS CREEK BASIN 89

Clover Creek near Tillicum, Wash.

Location. La t 47°08'40", long. 122°30'10", on west line sec. 12, T. 19 N., R. 2 E., on 

right bank Ij miles upstream from mouth and 2j miles northeast of Tillicum.

Drainage area.--70.3 sq mi (revised).

Records available. June 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 270 ft (from topographic map).

Extremes. Maximum discharge during year, 568 cfs Feb. 12 (gage height, 4.64 ft); minimum, 

 0.8 cfs Sept. 21, 22, 23 (gage height, 1.30 ft).

1949-51: Maximum discharge, that of Feb. 12, 1951; no flow Oct. 20-26, 29, Nov. 

1-9, 1949.

Remarks.--Records excellent except those for periods of shifting control, which are fair, 

and those for period of no gage-height record, which are poor. Some diversion for 

domestic use. Probably some regulation.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet 'per second)

1.5 

1.5 

1.7 

2.0 

2.3 

2.6

0.4

2.8

8.0

21

37

56

2.9 

3.2 

5.5 

5.9 

4.3 

4.7

85

115

154

215

330

640

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50

31

Total

Mean

Cfsm

In.

Ae-ft

Oct.

*7.7 w

8.8

10

7.7

7.7

8.0

9.6

11

12

11.5

11

12

10.5

10

10

10.5

10.5

9.6

9.6

9.2

8.8

8.8

10

9.6

13.5

15.5

15.5

14

14

322.0

10.4

0.148

0.17

639

Nov.

16 

15

15.5

15.5

15.5

15

*15

15

15

15

15

14.5

14.5

14.5

16.5

18

18

17.5

817.5

a20

a25

a27

50

54

59

44

50

55

59

69.

748.5

25.0

0.556

0.40

1,480

Dec.

*

86

95

105

116

134

137

134

125

119

116

 115

112

112

111

110

108

107

106

104

111

125

150

Mi

157

*146

139

134

132

130

3,683

119

1.69

1.95

7,310

Jan.

128 

*139

157

170

167

160

151

144

159

155

130

127

123

122

130

138

157

172

174

170

178

198

206

19§

188

182

177

170

162

155

147

4,894

158

2.25

2.59

9,710

Feb.

m157

167

*170

167

167

172

242

422

468

532

*440

410

410

392

392

365

345

318

281

252

233

219

208

201

194

186

-

-

-

7,821

279

3.97

4.14

15,510

Mar.

180 

172

168

167

165

162

157

155

153

150

146

160

*194

229

245

242

229

208

195

186

178

176

171

164

160

155

148

143

136

134

I3Q

5,358

173

2.46

2.83

10,630

Apr.

Iff

120

115

112

111

107

103

102

98

96

95

93

90

87

87

83

82

79

75

71

68

67

*66

67

64

65

65

63

62

2,641

88.0

1.25

1.40

5,240

May

ft58

58

57

56

55

54

52

51

52

50

50

48

47

47

47

45

44

42

41

41

40

41

40

39

38

38

36

35

35

1,455

46.9

0.667

0.77

2,890

June

t!34

*34

34

33

32

32

30

30

28

28

27

27

26

26

25

24

24

24

24

22

22

20

20

19

18

18

18

17^5

785.5

26.2

0.373

0.42

1,560

July

16.5 

16

16

16

11

16

15

15

15

14.5

14

13.5

13.5

13

13

13

*12.5

11.5

11

11

11

11

10.5

10.5

10

9.6

9.2

8.8

8.4

8.0

8.4

388.4

12.5

0.178

0.21

770

Aug.

JL1 

7.4

7.1

6.8

6.5

6.8

6.5

6.2

5.9

3.8

3.0

3.0

3.0

3.2

3.6

3.4

3.4

3.4

3.2

3.0

2.6

2.1

1.5

1.5

1.4

ixl

2.4

2.2

1.9

1.9

1.9

117.5

3.79

0.054

0.06

233

Sept.

1.9 

1.9

1.6

1.6

1.6

1.6

2.1

1.6

1.5

 1.4

1.4

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

afi

1.2

1.2

1.0

1.2

1.6

5*1

2.4

-

42.1

1.40

0.020

0.02

84

Calendar year 1950: Max 284 Mln 4.5 Mean 71.4 Cfsm 1.02 In. 13.79 Ac-ft 51,690

Water year 1950-51: Max 532 Mln 0.8 Mean 77.4 Cfsm 1.10 In. 14.96 Ac-ft 56,060

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Chambers Creek below Leach 

Creek, near Stellacoom.

Hote. Shifting-control method used Oct. 1 to Nov. 1, Feb. 14 to Sept. 30.
90 CHAMBERS CREEK BASIN

Chambers Creek below Leach Creek, near Steilacoom, Wash.

Location. Lat 47°12', long. 122°32', in NE^NE^ see. 27, T. 20 N., R. 2 E., on left bank 

a quarter of a mile downstream from Leach Creek, l| miles downstream from outlet of 

Steilacoom Lake, and 3 miles northeast of Steilacoom.

Drainage area. 104 sq mi (revised).

Records available. December 1937 to September 1940, July 1943 to September 1951. 

Gage. Water-stage recorder. Altitude of gage is 80 ft (from topographic map). 

Average discharge. 10 years (1938-40, 1943-51), 116 cfs.

Extremes. Maximum discharge during year, 661 cfs Feb. 11 (gage height, 3.12 ft); minimum 

not determined, probably occurred sometime during period of no gage-height record in 

August or September.

1937-40, 1943-51: Maximum discharge, that of Feb. 11, 1951; minimum, 34 cfs Aug. 

16, 1940, Aug. 30, Oct. 25, 1944.

Remarks. Records good except those for periods of no gage-height record, or shifting control, which are fair. Some regulation by gates at outlet of Steilacoon Lake. Some 

diversions for domestic use and for irrigation of small garden plots.

Rating tables, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 14 Feb. 15 to Sept. 30

0.9 

1.1 

1.3 

1.6 

2.0

80

107

156

231

0.1 

.3 

.5

41

64

91

139

195

1.5 

2.0 

2.5 

3.0

277

397

540

710

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

60

60

»59

63

75

68

70

81

79

121

80

75

78

84

94

90

88

88

86

76

74 

72

70

69

72

78

86

90

90

88 

88

2,432

78.5

4,820

Nov.

90

94

90

90

88

88

86

86

84

*84

83

81

80

80

84

89

89

86

85

94

104 

100

106

118

116

113

138

127

128

1|8

2,939

98.0

5,830

Dec.

156

152

161

185

201

218

220

220

251

261

251

235

222

231

233

237

233

229

229

231

227 

251

281

281

291

*291

291

291

281

281 

270

7,392

238

14,660

Jan.

26g

270

275

295

301

311

301

301

291

291

291

281

281

281

301

301

301

311

321

321

III

344

356

356

356

344

331

311

311 

301

9,613

310

19,070

Feb.

301

321

331

321

 321

337

361

381

566

578

639

632

650

*639

640

622

622

570

605

605

570 

540

525

496

481

452

438

424

-

-

13,968

499

27,710

Mar.

424

397

397

397

384

384

371

384

371

358

358

424

*410

438

481

466

466

452

438

410

397 

384

384

371

358

358

346

334

334

322 

310

12,108

391

24,020

Apr.

310

299

288

288

277

271

266

264

260

256

250

243

239

235

231

227

223

215

209

203

195 

185

180

*176

170

165

160

156

152

150

6,743

225

13,370

May

146

144

142

150

148

140

136

132

130

129

137

137

134

130

130

130

130

129

125

124

120 

120

119

120

119

117

124

124

*120

flt

4,014

129

7,960

June

111

111

109

109

108

106

106

104

103

100

87

87

87

84

74

74

76

76

73

69

70

70

72

74

74

73

72

74

76

74

2,583

86.1

5,120

July

12

72

72

72

72

73

72

72

70

69

69

69

69

69

68

68

*67

67

67

67

67 

67

65

65

64

64

64

64

64

63 

62.

2.1C6

67.9

4,180

Aug.

60

60

59

58

57

56

54

54

54

56

55

55

54

54

53

53

52

52

51 

50

49

49

M

48

52

56

54

52 

51

1,678

54.1

3,330

Sept.

50

50

49

49

M

49

52

54

51

*50

50

49

49

48

48

48

49

50

50

50

50 

50

51

50

52

52

54

52

54

56

1,514

50.5

3,000

Calendar year 1950: Max 596 Mln 57 Mean 181 Ac-ft 130,700

Water year 1950-51 : Max 650 Mln 48 Mean 184 Ac-ft 133,100
PUYALLUP RIVER BASIN 91

Kapowsin Creek near Kapowsln, Wash.

Location. Lat 46°59'45", long. 122°11'45", In NE£ sec. 5, T. 17 N., R. 5 E., 01 right

 bank half a mile downstream from Kapowsin Lake, and 1| miles east of Kapowsin.

Drainage area. 23.0 sq mi.

Records available. June 1927 to October 1932, October 1941 to September 1951.

Gage. Water-stage recorder and log control. Datum of gage is 561 ft above meai sea level 

(from stadia traverse). Prior to Oct. 8, 1932, water-stage recorder at same site at 

datum approximately 3 ft lower. Oct. 1, 1941, to Mar. 31, 1942, staff gage at present 

site and datum 0.15 ft higher than present gage.

Average discharge. 15 years, 49.1 cfs.

Extremes. Maximum discharge during year, 582 cfs Feb. 12 (gage height, 5.37 ft); minimum,

 0.9 cfs Aug. 23-27 (gage height, 1.72 ft).

1927-32, 1941-51: Maximum discharge, 605 cfs Dec. 12, 1946 (gage height, 5.69 ft); 

minimum, that of Aug. 23-27, 1951.

Remarks.--Records good. No diversion or regulation.

Rating table, water year 1950-51 (gage height, in 

feet, and discharge, In cubic feet per second)

1.7

1.8 

2.0 

2.2 

2.4 

2.6 

2.8

0.7 

2.1

3.0 

3.3 

3.6 

4.0 

4.4 

4.8 

5.2

94

139

193

275

362

453

546

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

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.

Ac-ft

Oct.

8.0

lal

7.6

8.3

11.5

13.5

15

17.5

21

36

55

53

44

41

38

34

32

31

33

34

34

33

30

29

28

31

41

61

ft

73

1,059.0

34.2

1.49

1.71

2,100

Nov.

70

79

*76

71

64

59

55

50

46

43

39

38

34

33

33

38

51

58

56

60

125

193

239

273

286

246

241

223

185 

167

-

3,231

108

4.70

5.22

6,410

Dec.

167

146

137

193

229

*246

256

219

180

151

129

117

105

95

90

88

89

86

81

21

84

94

165

184

163

142

128

117

105

105

102

4,272

138

6.OO

6.91

8,470

Jan.

108

176

141

235

203

169

142

126

111

98

89

81

79

89

112

126

161

*156

134

114

136

167

148

142

158

185

172

146

120 

104

91

4,319

139

6.04

6.98

8,570

Feb.

84

97

122

122

111

102

107

128

279

407

*476

546

407

296

235

195

161

148

134

120

108

97

89

81

75

*71

64

59

"

"

4,921

176

7.65

7.96

9,760

Mar.

55

51

49

52

51

47

44

44

44

42

40

51

107

122

154

205

169

137

116

104

98

95

88

79

75

74

71

68

65 

66

65

2,528

81.5

3.54

4.09

5,010

Apr.

61

57

54

51

49

47

44

43

*41

38

37

35

34

32

30

28

27

26

26

26

25

24

22

22

21

21

21

22

22 

22

"

1,008

33.6

1.46

1.63

2,000

May

22

21

21

21

21

21

21

21

20

20

24

28

28

*28

26

24

23

22

21

18.5

18

17.5

16.5

16.5

18

18.5

18.5

18

17.5 

16.5

06

643.0

20.7

0.900

1.04

1,280

June

15.5

14.5

14

13.5

13.5

13.5

13

13

12.5

13

13

12.5

12

12

11.5

10.5

9.9

9.1

8.3

8.0

7.6

7.2

6.9

6.6

6.0

5.5

5.2

5.2

4.9

"

302.6

10.1

0.439

0.49

600

July

AtA

4.1

*4.4

4.1

4.1

3.9

3.6

3.4

3.2

3.2

2.9

2.9

2.9

2.7

2.7

2.7

2.5

2.5

2.5

2.5

2.3

2.3

2.3

2.3

2.3

2.1

2.1

2.1

1.9 

1.9

1±1

88.6

2.86

0.124

O.14

176

Ate;.

1.6

1.8

1.8

1.8

1.8

1.

1.

1.

* 

*

1.

1-

1.

1.

1.

_.

li:

2.7

1.9 

1.9

1.8

44.0

1.42

0.062

O.O7

87

Sept.

1.8

1.6

1.6

1.4

1.4

1.4

2.1

2.3

2.3

2.3

2.1

2.1

2.1

2.1

2.1

2.1

2.3

2.1

2.1

2.1

2.1

1.9

1.9

1.9

2.7

2.5

2.5

3.6

4.9 

12.5

"

75.9

2.53

0.110

0.12

151

Calendar year 195O: Max 418 Mln 2.9 Mean 73.1 Cfsm 3.18 In. 43.12 Ac-ft 52,920

Water year 1950-51; Max 546 Mln 0.9 Mean 61.6 Cfsm 2.68 In. 36.36 Ac-ft 44,610

Peak discharge (base. 160 cfs). Nov. 25 (12 m. to 2:30 p.m.) 286 cfs (4.O5 ft)j Dec. 7 (12:3O ajn.) 

269 cfs (3.97 ft); Deci 24 (12 to 2 a.m.) 187 cfs (3.57 ft); Jan. 3 (9:3O a.m. to 12 m.) 246 cfs 

(3.86 ft); Jan. 17 (2 to 8 p.m.) 170 cfs (3.48 ft); Jan. 22 (5 to 8 a.m.) 172 cfs (3.49 ft); Jan. 26 

(2 p.m.) 191 cfs (3.59 ft); Feb. 12 (1 to 3 a.m.) 582 cfs (5.37 ft); Mar. 16 (7 a.m. to 1 p.m.) 213 

cfs (3.70 ft).

* Discharge measurement made on this day.
92 PUYALLUP RIVER BASIN

Puyallup River near Orting, Wash.

Location.--Lat 47°02'30", long. 122e 12'20", In SW$ sec. 17, T. 18 N., R. 5 E. on right 

bank 500 ft downstream from highway bridge, 4 miles south of Orting, and 7§ miles upstream from Carbon River.

Drainage area. 170 sq ml, approximately.

Records available September 1931 to September 1951.

. Water-stage recorder. Datum of gage is 357.5 ft above mean sea level (unadjusted).

rior to Feb. 5, 1946, water-stage recorder at site 450 ft upstream at datum 3.9 ft 

higher. Water-stage recorder 200 ft upstream at different datum used during periods In 

1942-46, when gage heights at other gage were affected by sluggish Intakes.

Average discharge. 20 years, 702 cfs.

Extremes. Maximum discharge during year, 6,250 cfs Feb. 11 (gage height, 8.03 ft); minimum, 92 cfs Aug. 30 (gage height, 2.23 ft); minimum dally, 239^cfs Oct. 3.

1931-51: Maximum discharge not determined, occurred Dec. 9 or 10, 1933; minimum, 

53 cfs Mar. 16, 1941; minimum dally, 123 cfs Dec. 4, 1936.

Remarks. Records good except those for periods of shifting control or m gage-height record, which are fair. Some regulation by Electron powerplant of Puget Sound Power & 

Light Co.

Revisions (water years).--W 832: Drainage area. W 932: 1937-39. W 96?: 1934.

Rating tables, water year 195O-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 24 Nov. 25 to Sept. 30

2.9 

3.1 

3.3 

3.5 

3.8

225

290

370

465

650

4.1 88O

4.5 1,260

5.0 1,830

5.5 2,590

3.8 

4.1 

4.5 

5.0 

5.5

650

860

1,190

1,660

2,210

6.O 

6.5 

7.0 

7.4

2,850 

3.6OO 

4,410 

5.11O

Note. Same as preceding table 

below 3.8 ft.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24 

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

258

 262

239

361

629

568

650

872

713

2.220

1,300

872

713

768

629

544

520

556

671

699

58O

498

455 

425 

762

643

974

1,110

934

816

699

21,940

708

4.16

4.80

43,520

Nov.

776

970

1,340

1,110

1,030

816

744

664

574

532

498

46O

425

410

440

550

 568

532

476

7O6

1,480

2,710

2,180 

5.060 

2,710

2,210

2,580

1,760

1,370

1.32O

-

35,001

1,167

6.86

7.66

69,420

Dec.

1,240

1,050

1,100

1,870

1,71O

2,450

2,090

1,61O

1,560

1,560

1.S1O

1.37O

1,190

1,070

1,060

1,O6O

1,080

988

996

1,050

1,160

1,420

2.850 

1,870 

1.56O

1,190

1,O6O

1,030

972

972

884

42,582

1,374

8.08

9.32

84, 460

Jan.

980

1,510

1,420

1,160

988

846

769

727

664

636

587

562

664

790

1,OOO

940

1,040

 853

769

692

1.O6O

932

811 

1,100 

1,420

1.710

1,240

996

a86O

a 730

a640

29,O96

939

5.52

6.37

57,710

Feb.

a620

832

932

332

741

699

1,260

1,820

*4,000

3,760

 5.110

3,O6O

2,O40

1,510

1,280

1,O8O

980

916

825

790

706

636

6O8 

a560 

a5ZO

»a490

*a46O

a440

-

-

37,507

1,340

7.88

8.21

74,390

Mar.

a42O

a400

a3SO

a420

a39O

3365

342

334

326

314

3O2

652

980

839

1.65O

1,320

968

832

762

769

783

727

65O 

615 

6O1

629

594

544

550

568

52O

19,546

631

3.71

4.28

38,770

Apr.

504

487

538

636

629

587

622

6O8

»5SO

544

538

664

818

818" 855

825

832

783

678

568

504

465

445 

430. 

45O

460

465

5O4

509

465

-

17,809

594

3.49

3.90

35,32O

May

415

392

392

530

685

643

706

643

622

755

1.550

1,120

876

713

*645

699

846

776

678

650

715

86O

1,080 

1,050 

1,040

776

671

629

562

504

470

22,489

725

4.26

4.92

44,610

June

460.

482

552

538

550

601

678

594

601

645

645

657

727

769

8O4

797

§11

727

692

664

671

671

650 

65O 

615

615

608

636

715

720

-

19,519

651

5.85

4.27

38,720

July

706.

671

699

6O8

509

465

401

425

492

*544

558

594

645

656

615

562

650

7O6

568

487

492

544

656 

629 

550

509

526

556

552

520

520

17,558

566

5.55

3.84

54, 790

Aug.

558

504

509

492

482

465

487

465

470

504

476

445

415

425

492

 482

430

470

526

544

601

550

460 

374 

370

562

562

478

322

302

285

14,085

454

2.67

5.08

27,940

Sept.

299

303

318

564

423

514

339

397

326

322

358

374

406

445

455

450

406

397

342

333

334

314 

493

338

276

335

370

1.080

-

11,728

391

2.30

2.57

23,280

Calendar year 1950: Max 4,61O Mln 239 Mean 918 Cfsm 5.40 In. 73.31 Ac-ft 664,600

Water year 195O-51 : Max 5,11O Mln 239 Mean 791 Cfam 4.65 In. 63.22 Ac-ft 572,900

Peak discharge (base. 4.i efsl. Feb. 11 (1:3O p.m.) 6,250 cfs (8.O3 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of 2 discharge measurements and records for 

station at Alderton.

Note. Shifting-control method used Oct. 10 to Nov. 24, Dec. 24 to Jan. 28, Feb. 2-8.
POYALLUP RIVER BASIN 93

Carbon River near Fairfax, Wash.

Location.--Lat 47e 01'30", long. 122 e 02'00", in Sw£ sec. 22, T. 18 N., R. 6 E., on left

 bank l£ miles northwest of Fairfax and 12 miles upstream from Voights Creek.

Drainage area. 81.1 sq mi (revised).

Records available. November 1910 to July 1912, March 1929 to September 1951. Published 

as "at Fairfax1 ' 1910-12.

Gage.--Water-stage recorder. Altitude of gage is 1,220 ft above mean sea level (from

 topographic map). Prior to July 13, 1912, staff gage at railroad crossing It miles upstream at different datum.

Average discharge. 22 years (1929-51), 414 cfs.

Extremes.--Maximum discharge daring year, 4,770 cfs Feb. 9 (gage height, 6.20 ft); minl-

 mum, 134 cfs Sept. 23, 24 (gage height, 1.42 ft).

1910-12, 1929-51: Maximum discharge, 8,030 cfs Dec. 9, 1933 (gage height, 10.2 ft), 

from rating carve extended above 500 cfs; minimum, 40 cfs (estimated) Jan. 20, 1930.

Remarks. Records good except those for periods of shifting control or no gage-height recor37 which are fair. Diversions by lumber industry returned to river above gage. No 

regulation.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

1.4 

1.6 

1.8 

2.0

2.5

2.6 

2.9

150

175

225

280

385

535

730

3.2 

3.6 

4.0 

4.5 

5.O 

5.5

960

1,330

1,750

2,330

2,970

3,680

Discharge, in cubic feet per second, water year October 195O to September 19">1

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

50

51

Total

Mean

Cfsm

In.

Ac-ft

Oct.

192

1§1

182

242

542

561

455

595

621 

 1.890

 1,220

660

515

541

475

405

581

594

496

571

455

577

554

504 

555

528

594

435

430

398

555

14,877

480

5.92

6.82

29,510

Nov.

598

496

840

688

674

524

465

 405

557 

524

507

285

265

255

259

268

265

248

258

5O4

589

1,550

1,450

2.750 

 5,036

1,700

1,700

1,240

944

816

"

22,568

746

9.20

10.26

44,570

Dec.

681

589

608

1,150

1,180

1.B7O

1,260

896

772 

800

856

779

608

530

475

445

412

585

575

450

654

902

1,750

1,200 

1,100

786

640

 614

571

547

470

24,555

785

9.68

11.16

48,260

Jan.

486

751

730

571

460

598

569

555

520 

504

292

280

549

416

 502

475

465

565

520

298

594

542

507

674 

1,220

1.450

920

621

a480

a400

a55O

15, 642

505

6.25

7.17

51,050

Feb.

a540

a430

a400

565

551

528

628

1,000

 5.420 

2,970

 2,970

1,750

1,110

800

 660

535

470

421

590

369

558

514

292

280 

262

245

255

225

-

-

"

21,878

781

9.63

10. 03

43,390

Mar.

218

208

200

200

200

192

182

175

172 

165

158 sit

660

515

1.100

920

6O2

470

416

426

455

430

585

355 

534

558

554

520

31O

514

507

11,419

568

4.54

5.24

22,650

Apr.

292

286

298

585

440

430

426

426

408 

377

561

430

660

741

647

647

681

614

496

416

369

551

504

292 

 289

504

510

507

504

285

-

12,557

419

5.17

5.Z6

24,910

May

256

240

475

455

486

440

445 

608

1.190

840

628

480

426

518

751

640

508

480

547

702

960

1,050 

1,000

674

571

496

408

565

528

17,488

564

6.95

8.02

54,690

June

 510

545

405

421

405

450

480

440

460 

515

555

571

654

702 Hi

751

640

589

541

518

513

518

518

535 

51S

515

486

470

502

550

-

15,581

519

6.40

7.14

50,900

July

541

550

502

486

465

565

514

289

295 

514

528

328

358

585

377

549

542

577

577

549

517

501

298

501 

504

501

292

285

280

121

271

1O,876

351

4.55

4.99

21,570

Aug.

271

268

262

256

256

255

 259

277

286 

285

285

245

255

248

265

265

250

242

259

289

514

2§§

242

212 

202

200

198

256

198

180

152

7,704

249

5.07

5.53

15,280

Sept.

142

142

146

160

170

185

240

5O4

228 

222

170

 160

170

175

178

188

200

202

188

188

165

148

140

13S 

295

240

172

ISO

220

122

6,257

208

2.56

2.86

12,570

Calendar year 1950: Max 2,73O Mln 16O Mean 567 Cfsm 6.99 In. 94.94 Ac-ft 410,600

Water year 1950-51: Max 5,42O Mln 158 Mean 496 Cfsm 6.12 In. 82.98 Ac-ft 558,900

Peak discharge (base. 1.800 efs). Oct. lo (1 p.m. 

cfs (5.84 ft): Dec. 6 (9:50 a.m.) 2,450 cfs (4.82 ft

2,840 cfs (4.85 ft); Nov. 24 (6:50 a.m.) 4,150 

; Dec. 22 (10 p.m.) 2,O9O cfs (4.62 ft); Jan.

26 (5:50 a.m.) 1,86O cfs (4.28 ft); Feb. 9 (5:50 p.m.) 4,77O cfs (6.20 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.

Hote. Shifting-control method used Oct. 1 to Jan. 28, Feb. 4-8.
94 PUYALLUP RIVER BASIN

South Prairie Creek at South Prairie, Wash.

Location. Lat 47 0 08'30", long. 122°05'30", in NE^NWi, sec. 18, T. 19 N., R. 6 E., on 

right bank 0.3 mile northeast (revised) of South Prairie and 5 miles upstream from 

mouth.

Drainage area. 77.5 sq mi.

Records available,. June 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 375 ft (from topographic map).

Extremes. Maximum discharge during year, 3,550 cfs Feb. 11 (gage height, 7.23 ft); minimum, 24 cfs Sept. 5, 6, 7.

1949-51: Maximum discharge, that of Feb. 11, 1951; minimum, that of Sept. 5, 6, 

7, 1951.

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. Small anount of diversion 

for domestic use. No regulation.

Revisions. W 1182: Drainage area.

Rating table, water year 195O-51, except periods of shifting control (gage 

height. In feet, and discharge, In cubic feet per second)

1.2

1.3 

1.5 

1.7 

1.9 

2.2 

2.5 

2.8

21

29

48

71

99

156

231

324

3.1 

3.5 

4.0 

4.5 

5.0 

5.5 

6.0 

6.5

435

605

860

1,170

1,520

1,920

2,360

2,830

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

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.

Ac-ft

Oct.

60

56

55

65

131

148

120 

228

263

856

*559 

279

184

194

186

146

141

186

311

338

240

186

152

131

148

148 

209

291

317

282

240

6,830

220

2.84

3.28

13,550

Nov.

294

459

451

331

294

223

226 

*184

161

146

135 

122

113

108

106

122

143

143

120

234

924

1.38O

1,170

1.610

*1,2OO

830 

1,040

750

551

479

-

14,049

468

6.04

6.74

27,870

Dec.

431

356

459

1,170

950

1.520

TTJSo

675

528

459

467 

435

356

317

294

285

301

285

269

272

317

456

1,100

775

70O

511 

435

*385

338

408

352

16,646

537

6.93

7.99

33,020

Jan.

468

995

920

650

515

408

342

314

269

251

228 

212

269

366

451

435

520

366

294

251

374

348

3O1

610

920

1.100 

636

416

a30O

a 240

207

13,976

451

5.82

6.71

27,720

Feb.

212

342

419

348

291

269

*499 

775

*2,300

1,920

2.650 

17735

1,010

725

623

515

471

443

392

366

331

301

276

263

246

226 

212

199

-

-

-

18,354

656

8.46

8.81

36,400

Mar.

189

179

177

186

172

163

152 

154

152

143

143 

424

750

605

1.140

*890

592

447

396

408

439

389

334

301

301

324 

298

276

276

269

246

10,915

352

4.54

5.24

21,650

Apr.

228

220

234

269

257

237

234 

218

199

184

182 

226

279

1?66

234

243

243

212

192

161

143

133

126

122

*120

120 

122

139

156

139

5,838

195

2.52

2.80

11,580

May

122

113

lil

146

2O2

172

189 

172

163

209

ffi

328

243

207

212

240

194

161

148

156

194

243

308

282

184 

168

154

141

126

116

6,182

199

2.57

2.97

12,260

June

*113

116

120

122

124

137

m135

131

131 

137

137

148

141

124

111

104

-89

96

92

90

88

87

83

80 

78

75

74

11

3,353

112

1.45

1.61

6,650

July

 §!

&?

*66

64

63

64

63 

59

58

57

54 

50

50

51

50

50

49

48

48

47

45

44

44

44

42

43 

41

41

41

40

39

1,590

51.3

0.662

C.76

3,150

Aug.

41

40

39

40

38

37

37 

36

38

39

38 

38

38

37

35

36

37

35

34

32

33

34

34

34

34

34 

34

71

55

42

37

1,190

38.4

0.495

0.57

2,360

Sept.

32

28

26

26

25

2i

32

60

43

35

33

*30

30

29

28

28

27

28

29

29

28

28

28

31

56

67 

45

49

74

332

1,360

45.3

0.585

0.65

2,700

Calendar year 1950 : Max 2,120 Mln 35 Mean 314 Cfsm 4.05 In. 54. S7 Ac-ft 227, ioo

Water year 195O-51 : Max 2,650 Mln 24 Mean 275 Cfsm 3.55 In. 48.13 Ac-ft 198,900

Peak discharge (base. 2.000 cfs). Nov. 24 (6:30 a.m.) 2,220 cfs (5.85 ft); Dec. 6 (7:30 a.m.) 

2,090 cfs (5.67 ft); Feb. 11 (2:30 p.m.) 3,550 cfs (7.23 ft). 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations o~i nearby streams. 

JJotg.--Shifting-control method used July 23 to Sept. 30.
PUYALLUP RIVER BASIN 95

Puyallup River at Alderton, Wash.

Location. Lat 47°lli05", long. 122°13'45", on line between sec. 25, T. 20 N., R. 4 E., 

and sec. 30, T. 20 N., R. 5 E., on right bank at highway bridge No. 78 on State Highway 5E, 1 mile north of Alderton, 1 mile south of Sumner, and l| miles upstream from 

Stuck River.

Drainage area. 438 sq mi.

Records available. October 1914 to February 1927, October 1943 to September 1951.

Gage. Water-stage recorder. Datum of gage is at mean sea level, unadjusted. Prior to 

Mov. 17, 1943, staff or chain gages at practically same site. Prior to Aug. 5, 1918, 

at datum 50.00 ft higher; Aug 5, 1918, to Feb. 1, 1927, at datum 49.00 ft higher.

Average discharge. 20 years (1914-26, 1943-51), 1,601 cfs.

Extremes. Maximum discharge during year, 17,100 cfs Feb. 11 (gage height, 54.89 ft); minimum, 367 cfs Sept. 24 (gage height, 47.61 ft).

1914-27, 1943-51: Maximum discharge, 22,600 cfs Dec. 11, 1946 (gage height, 56.80 

ft); minimum observed, 228 cfs Sept. 22, 1924.

Remarks. Records excellent except those for periods of ahifting control, which are fair. 

Some regulation by Electron powerplant of Puget Sound Power & Light Co.

Revisions. W 870: Drainage area.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

47.7

47.9

48.1

48.4

48.7

430

580

750

1,040

1,380

49.0

49.5

50.0

50.5

51.0

1,790

2,560

3,420

4,410

5,520

51.5

52.0

53.0

54.0

6,760

8,120

11,100

14,200

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

557 

529

522

710

1..340

1,480

1,480

1,940

2,140

4.890

4,100

2,160

1,620

1,640

1,580

1,200

1,220

1,270

1,660

1,860

1,500

1,230

1,040

950

1,300

1,330 

1,650

2,160

2,020

1,750

1,520

50,348

1,624

3.71

4.27

99,860

Nov.

1,580 

2,240

2,800

2,560

2,480

2,090

1,780

*1,570

1,320

1,200

1,070

960

860

831

813

1,100

1,160

1,120

920

1,420

3,610

5,640

5,880

8.400

6,760

5,520 

6,000

4,200

3,330

2,980

"

82,194

2,740

6.26

6.98

163,000

Dec.

2,800 

2,400

2,480

4,410

4,300

6,250

5,290

3,610

3,060

2,980

2,890

2,800

2,400

2,240

2,020

1,940

2,020

1,790

*1.750

1,790

2,400

2,400

6.760

4,730

4,100

3,150 

2,720

2,480

2,320

2,560

2,320

95,160

3,070

7.01

8.08

188, 700

Jan.

2,400 

4,000

4,200

3,150

2,640

2,240

2,020

1,940

1,690

1,590

1,540

1.450

1,500

2,020

2,400

2,400

2,800

2,240

1,940

1,730

2,400

2,320

2,020

2,560

4,000

4.950 

3,330

2,480

2,090

1,730

1,570

75,320

2,430

5.55

6.40

149,400

Feb.

1,540 

*1,860

2,320

1,940

1,600

1,540

2,480

4,000

*10,800

11,700

14.200

9,560

5,880

4,410

3,610

3,150

2,800

2,640

2,400

2,240

2,090

1,860

1,760

1,640

1,540

1,430 

1,320

1.270

-

-

-

103,670

3,702

8.45

8.80

205, 600

Mar.

1,230

1,170

1,130

1,240

1,140

1,080

1,040

1,020

990

970

940

1,710

3,150

2,720

4.200

4,100

2,890

2,320

2,090

2,090

2,090

2,020

1,790

1,650

1,620

1,680 

1,620

1,500

1,500

1,520

1,460

55,670

1,796

4.10

4.73

110,400

Apr.

1,360 

1,300

1,380

1,620

1,680

1,540

1,580

1,570

1,440

1,360

1,330

1,510

1,860

2.090

1,940

1,940

2,020

1,860

1,650

1,390

1,230

1,130

*1,040

1.020

1,030

1,040 

1,050

1,120

1,200

1,150

-

43,430

1,448

3.31

3.69

86,140

May

1,020 

920

930

1,060

1,580

1,480

1,640

1,500

1,420

1,730

3.350

2,720

2,160

1,730

1,500

1,570

2,020

1,860

*1,540

1,420

1,500

1,780

2,400

2,560

2,720

1,860 

1,650

1,500

1,340

1,190

1,080

52,710

1,700

3.88

4.48

104, 500

June

1.040 

1,100

1,200

1,280

1,270

1,410

1,540

1,460

1,380

1,540

1,540

1,570

1,720

1,790

2.090

2,020

1,790

1,660

1,570

1,510

1,500

1,520

1,500

1,520

1,480

1,440 

1,440

1,410

1,500

1,580

-

45,370

1,512

3.45

5.85

89,990

July

1.590 

1,500

1,500

1,440

1,270

1,170

1,040

1.000

*1,070

1,170

1,170

1,190

1,280

1,340

1,310

1,230

1,280

1,420

1,270

1,100

1,020

1,050

1,160

1,190

1,120

1,040 

1,040

1,040

1,040

1,010

1,010

57,060

1,195

2.73

3.15

73,510

Alg.

980 

970

960

940

940

880

870

850

860

900

890

795

741

732

813

822

759

795

840

890

970

990

813

652

636

628 

620

870

723

580

556

23,265

815

1.86

2.15

50,110

Sept.

m516

548

508

572

*696

940

696

696

572

516

572

580

596

660

669

705

628

596

564

516

500

500

741

723 

508

548

669

1.940

-

19,461

649

1.48

1.65

38, 600

Calendar year 1950: Max 8,630 Min 501 Mean 2,113 Cfsm 4.82 In. 65.48 Ae-f; 1,530,000

Water Water year year 1950-51: 1950-51: Max Max 14,200 14,200 Mln Mln 493 493 Mean Mean 1,879 1,879 Cfsm Cfsm 4.29 4.29 In. In. 58.23 58.23 Ac-ft Ac-ft 1,360,000 1,360,000

Peak discharge (base. 6.400 cfsl. Oct. 10 (5 p.m.) 7.830 cfs (51.99 ft); Nov. 24 (12 m.) 10,500 

cfs (52.83 ft); Dec. 6 (11:30 a.m.) 8,120 cfs (52.02 ft)j Dec. 23 (2:30 a.m.) 7,560 cfs (51.85 ft); 

Feb. 11 (4:30 p.m.) 17,100 cfs (54.89 ft); Mar. 15 (5:30 p.m.) 6,760 cfs (51.50 ft).

* ' Discharge Discharge measurement measurement made on this day.

Note. Shifting-control method used Oct. 1-10, May 23 to Sept. 4.
96 PUYALLUP RIVER BASIN

White River at Greenwater, Wash.

Location. Lat 47°08'50", long. 121°38'50", In SE£ sec. 10, T. 19 N., R. 9 E., on 

right bank three-quarters of a mile southeast of Greenwater, three-quarters of a 

mile upstream from Greenwater River, and 25 miles upstream from Buckley.

Drainage area. 216 sq ml.

Records available. September 1911 to May 1912 (fragmentary), March 1929 to September 

1951.Published as "near Enumclaw" 1911-12.

Gage. Water-stage recorder. Altitude of gage Is 1,725 ft (from topogrr'ohlc map). 

Prior to May 6, 1912, staff gage at site 2 miles upstream at different datum.

Average dischar£e.~22 years (1929-51), 828 cfs.

Extremes. Maximum discharge during year, 5,550 cfs Feb. 9 (gage height, 5.92 ft); 

minimum, 325 cfs Sept. 27,

1911-12, 1929-51: Maximum discharge, 12,100 cfs Dec. 21, 1933 (gage height, 

9.38 ft); minimum, 120 cfs Nov. 2, 1935 (gage height, 1.69 ft).

Remarks. Records good except those for periods of shifting control or ro gage-height 

record, which are poor. No diversion or regulation.

Rating tables, water year 1950-51, except periods of shifting control (gr-rce height. 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 30

2.2 

2.4 

2.6 

2.8 

3.0

332 

42S 

543 

678 

633

3.3 

3.6 

4.0 

4.5 

5.2

1,100

1,410

1,910

2,710

4,220

2.6 

3.6 

3.0 

3.3 

3.6

290

390

510

730

990

4.0 1.450

4.5 2,210

5.0 3,160

5.5 4,360

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

S

9

10

11 

12

13

14

15

16

17

IS

19

20

21

22

23 

24

25

26 

27 

26

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

373

360

360

3SS

563

501

531

657

SOI

1.730

1,470 

1,020

867

936

833

753

730

785

892

936

833

746

708 

686

1,030

884 

1,070 

1,050

1,060

945

867

25,365

818

3.79

4.37

50,310

Nov.

867

*901

1,220

1,240

1,270

1,120

1,040

945

850

817

785 

769

746

708

693

708

686

643

608

^75

999

1,780

1,840 

3,530

4.100

3,640 

3,750 

2,710

2,050

1,740

-

43,433

1,448

6.70

7.48

86,150

Dec.

1,470

1,280

1,190

1,240

1,300

2,200

2,050

*1,660

1,660

1,840

1,910 

1,780

1,580

1,420

1,310

1,240

1,230

1,140

1,140

1,190

1,290

1,510

2.620 

2,360

2,050

1,700 

1,460 

1,360

1,220

1,170

1.040

47,610

1,536

7.11

8.20

94,430

Jan.

963

1,100

1,130

981

850

753

693

657

629

608

588 

576

606

622

716

671

650

602

588

576

576

*556

531 

^55

842

HB753

657

650

629

22,529

727

3.37

3.88

44,690

Feb.

678

657

588

576

562

543

595

777

3,860

*4.230

3,850 

3,270

2,300

1,800

1,520

1,270

1,130

1,040

963

900

828

786

746 

714

690

643 

622 

615

-

-

-

36,753

1,313

6.08

6.33

72,900

Mar.

594

580

559

566

552

538

510

504

498

486

&559

 552

828

837

714

658

636

690

754

730

674 

650

658

666 

658 

650

682

706

666

19,333

624

2.89

3.33

38,350

Apr.

666

711

864

1,090

1,130

1,100

1,190

1,160

1,100

1,030

1,020 

1,220

1,580

1.760

1,700

1,650

1,760

1,740

1,510

1,250

1,110

1,020

*972 

945

936

963 

972 

1,010

981

918

-

35,061

1,169

5.41

6.04

69,540

May

846

802

8T5

954

1,200

1,220

1,240

1,200

1,250

1,600

2.750 

2,216

1,720

1,420

1,280

1,420

1,770

1,760

1,590

1,480

1,560

1,800

2,300 

2,210

2,050

1,720 

1,580 

*1,440

1,260

1,130

1,050

46,622

1,504

6.96

8.03

92,470

June

1.030

1,080

1,170

1,220

1,210

1,250

1,220

1,190

1,280

1,400

1,480 

1,580

1,670

1,760

1,850

1,890

1.900

1,856

1,750

1,680

1,630

1,600

1,600 

1,580

1,540

1,480 

1,420 

1,400

1,400

1,400

-

44,510

1,484

6.87

7.66

88,280

July

1.440

T7555

1,400

1,370

1,350

1,260

1,200

1,150

1,220

1,280

1,200 

1,200

1,300

1,280

1,200

1,060

1,060

1,150

1,100

*1,040

1,010

1,010

1,040 

1,020

954

909 

909 

909

873

864

837

34,995

1,129

5,23

6.03

69,410

Aug.

828

515

802

786

762

738

722

722

714

722

682 

636

615

615

643

650

629

615

608

658

690

666

573 

524

504

498 

498 

559

468

432 402

19,771

638

2.95

3.40

39,220

Sept.

402

402

408

402

414

438

510

517

456

444

402 

390

396

402

408

426

450

338

408

385

365

360

355 

370

486

375 

335 

365

385

823

12,667

422

1.95

2.18

25,120

Calendar year 1950 1 Max 4,100 Min 350 Mean 1,209 Cfsm 5.60 In. 76.01 Ac-ft 875,400

Water year 1950-51 : Max 4,230 Min 335 Mean 1,065 Cfsm 4.93 In. 66.93 Ac-ft 770,900

Peak d 

cfs (5.5 

p.m.) 5, 

ft).

____________. dlschai (bat 2.000 cfs).--Oct. 10 (11:30 a.m.) 2,440 cfs (4.28 ft); Nov. 25 (8 p.m.) 5,270

51 ft); Dec. 6 (12 a.) 2,530 cfs (4-28 ft); Dec. 23 (4 a.m.) 2,800 cfs (4.45 ft); Feb. 9 (7:30

550 cfs (5.92 ft)j May 11 (9:30 a.m.) 3,160 cfs (5.00 ft); May 23 (10 p.m.) 2,380 cfs (4.62

* Discharge measurement made on this day. 

Note. No gage-height record June 11 to July 19; discharge estimated on basis of records for stations 

on~nearby streams. Shifting-control method used Oct. 10 to Feb. 9, July 20 to Aug. 29.
PUYALLUP RIVER BASIN 97

Greenwater River at Greenwater, Wash.

Location. Lat 47°09'15", long. 121°38'00", in NW^NWj sec. 11, T. 19 N., R. 9 F-., on 

left bank 1 mile upstream from mouth, 1 mile east of Greenwater, and 17 miles east 

of Buckley.

Drainage area.--74.4 sq. mi (revised).

Records available. September 1911 to .August 1912 (fragmentary), May 1929 to September 

1951. Published as "near Enumclaw" 1911-12.

Page. Water-stage recorder. Altitude of gage is 1,725 ft above mean sea level (from 

topographic map). Prior to Aug. 10, 1912, staff gages at approximately samp site 

but different datums. May 1, 1929, to Aug. 14, 1934, water-stage recorder ?t site 

900 ft upstream at different datum.

Average discharge. 22 years (1929-51), 205 cfs.

Extremes. Maximum discharge during year, 1,130 cfs Feb. 11, May 11; maximum gage height, 

 4.78 ft Feb. 11; minimum discharge, 35 cfs Sept. 23, 24 (gage height, 2.13 ft).

1911-12, 1929-51: Maximum discharge, 4,140 cfs Dec. 9, 1933 (gage height, 9.24

ft, site and datum then in use), from rating curve extended above 1,000 cfs; minimum,

23 cfs Oct. 7, 1934 (gage height, 2.06 ft).

Remarks. Records good except those for periods of shifting control, which are fair. 

No diversion or regulation.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

2.1 

2.3 

2.5 

2.7 

3.0

77

111

177

3.3 

3.6 

4.0 

4.5 

5-.0

26O 

375 

565 

890 

1,300

Discharge, In cubic feet per second, water year October 1950 to September 19E1

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

3O

31

Total

Mean

Cfsm

In.

Ao-ft

Oct.

52

51

w57

62

61

66

82

178

144 

106

90

97

97

87

85

88

91

93

88

82

77 

76

87

87

121

149

163

153

144

2,913

94.0

1.26

1.46

5,780

Nov.

140

 153

260 

267

257

233

222

203

185

172

163 

151

144

135

133

133

129

125

115

125

236

642

632 

808

801

838

ISoT

686

545

416

~

9,850

328

4.41

4.92

19,540

Dec.

406

343

319 

331

335

424

447

*398

371

380

460 

515

465

411

359

323

295

278

264

254

278

343

155

576

520

447

438

406

398

355

12,391

40O

5.38

6.19

24,580

Jan.

343

420 434' 

3BT

295

260

236

222

2O6

193

180 

172

193

208

2 OS

203

198

177

165

149

149

 146

lf§

257

420

331

254

225

2O8

185

7,300

235

3.16

3.65

14,480

Feb.

175

172

167 

160

153

146

151

190

815

*1,000

1.040 

815

570

452

380

323

284

26O

239

227

211

20O

193 

182

175

163

158

151

-

-

"

9,152

327

4.40

4.57

18,150

Mar.

146

140

138 

144

138

131

127

123

121

117

ffi

133

 138

225

248

211

187

185

200

230

222

206 

195

2O6

211

211

208

216

219

214

5,424

175

2.35

2.71

10,760

Apr.

214

239

319 

429

429

406

442

416

380

351

351 

456

576

614

582

570

604

587

525

456

406

371

 343 

327

315

315

327

331

339

323

12,343

411

5.52

6.17

24,480

May

299

284

m452

470

475

470

465

535

93O 

160

808

668

565

540

598

592

545

510

500

540

614 

638

632

576

520

 480

438

398

367

16,378

528

7.10

8.19

32,490

June

335

327

331 

339

335

351

351

347

347

351

359 

371

371

375

402

402

388

363

339

315

299

284

270 

264

254

239

230

219

211

20O

9,569

319

4.29

4.78

18,980

July

190

ISO

172 

167

160

158

144

135

131

 127

123 

117

115

111

109

102

98

97

95

93

91

90

87 

85

83

SO

79

79

77

76

14

3,525

114

1.53

1.76

6.99O

A,«.

71

70

69 

67

67

64

64

63

62

61

61 

59

59

57

56

55

53

53

52

52

51

51

51 

51

50

49

48

36

55

53

*51

1,781

57.5

0.773

0.89

3,530

Sept.

49

47

47 

46

46

44

46

51

46

44

44 

43

42

42

41

39

39

38

38

37

36

36

49

44

4O

39

42

67

1,292

43.1

0.579

0.65

2,560

Calendar year 195O : Max 1,210 Min *? Mean -32O cfsm 4.3O In. 58.45 Ac-ft 232,000

Water year 1950-51 : Max 1,040 Min 35 Mean 252 cfsm 3.39 In. 45.94 Ac-ft 182,300

.aae. 50O cfaK Nog. 22 (4:30 p.m.) 962 ofs (4.52 ft); Deo. 12 (5 a.m.) 525 ofs 

Deo. 23 (3 p.m.) 662 cfs (4.13 ft); Feb. 11 (4 p.m.) 1,130 ofs (4.78 ft)) Apr. 14 (7 a.m.)

626 ofs (i.oTftJj' May''il"(llV'p.mt) 1*130 ofs' (l".69 ft);*May"'24 (iuso"^^! 674*ofs fitil ft}. 

* Discharge measurement made on this day. 

Note. Shifting-control method used Nov. 22 to Feb. 9, Mar. 16 to July 6, July 19 to Sept. 25.
98 PUYALLUP RIVER BASIN

Mud Mountain Reservoir near Buckley, Wash.

Location. Lat 47"08', long. 121°56', in SE£ sec. 8, T. 19 N., R. 7 E., on left bank of 

reservoir Just upstream from Mud Mountain Dam on White River, 4j miles southeast of 

Buckley, and 6 miles downstream from Clearwater River.

Records available. October 1944 to September 1951.

Sage. Staff gage read once daily. Datum of gage is mean sea level (levels by Corps of 

Engineers).

Extremes. Maximum contents observed during year, 18,500 acre-ft Feb. 10 (elevation, 

1,073.4 ft); no pool Aug. 8 to Sept. 29.

1944-51: Maximum contents observed since dam was completed, that of Feb. 10, 1951.

Remarks. Reservoir, for flood control, is formed by earth-fill dam. Enbankment completed 

ETT942. Capacity, 106,000 acre-ft at spillway crest, elevation, 1,215 ft. Storage is 

not retained but is dissipated as soom after a flood as is possible without creating 

damaging flows downstream In order to have the maximum capacity available for any 

following flood which might develop. Storage began on small scale it- 1942.

Cooperation. Records of reservoir elevations furnished by Corps of Engineers.

Contents, in acre-feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 o**o

24

25

26

27

28

29

30

31

Oct.

95

95

95

72

72

57

57

72

72

1,830

3,670

1,310

168

12095"

77

95

107

191

218

168 isi

95

95

134

120

233

-

-

201

130

Nov.

124

299

590

578

318

141

134

107

95

95

95

95

83

83

83

95

95

95

107

113.

750

3,300

9,640

15,300

17,900

17,800

17,100

15,800

16,400

15,400

"

Dec.

13,600

10,800

7,990

5,440

4,750

6,640

10,400

10,800

8,980

8,840

7,940

7,960

7,100

5,410

3,530

1,860

743

371

266

303

691

333

4,330

8,580

10,300

10,500,

9,190

7,370

5,480

3,790

2,230

Jan.

1,050

1,050

3,810

2,480

1,310

179

JL?1

179

179

16S

168

141

141

266

204

158

218

141

141

141

141

141

134

358

1,540

5,000

5,780

4,030

1,510

113

113

Feb.

113

168

141

141

137

137

233

519

6,730

18,500

17,800

16,100

13,400

17 , 900

16,100

13,300

10,000

6,260

3,560

333

318

335

333

333

191

191

191

179

_

-

-

Mar.

179

179

179

179

179

179

179

179

179

179

179

213

3S9

333

840

3,080

736

318

191

218

318

266

191

191

191

191

191

191

191

318

191

Apr.

191

158

249

856

1,310

1,170

1,160

1,140

958

491

333

779

1,730

1,850

1,930

1,710

1,820

1,770

1,480

641

191

158

158

149

149

149

149

149

149

141

-

Hay

127

113

127

191

691

708

736

726

578

979

3,320

7,480

8,660

7,470

4,930

2,220

2,170

2,870

2,950

2,370

1,760

1,800

2,900

4,510

5,780

5,620

4,730

3,390

2,040

204

149

June

134

141

179

218

218

259

284

204

303

413

641

743

988

1,200

1,850

2,470

2,460

2,030

1,530

1,130

688

578

578

578

438

340

249

233

213

218

-

July

233

233

233

158

127

127

141

158

191

191

191

168

158

141

141

141

141

141

134

127

127

127

141

127

127

127

127

127

127

127

120

Aug.

141

149

149

149

89

72

72

0

O

0

0

0

O

O

0

O

O

0

0

O

0

O

O

0

0

0

O

0

O

O

O

Sept.

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

168

Monthly elevation and contenta, water year October 185O to September 19S1

Date

Dec. 31....................

Calendar year 1950.....:.

Jan. 31....................

Elevation 

j(feet)t

971.7

-

921.0

929.0

932 4

Contents 

(acre-feet)

14 54O

1,620

-

113

TIC

Change In consents, 

during month 

(acre-feet)

-12,920

-360

-1,510

+12

t Elevation at 12 p.m. determined from 1 dally observation. 

- Estimated.
PUYALLUP RIVER BASIN 99

White River near Buokley, Wash.

Location. Lat 47°09 I 05", long. 121°57'00", in SW^NW^ sec. 8, T. 19 N., R. 7 F.., on right 

bank 0.7 mile upstream from Red Creek, 1 mile downstream from Mud Mountain Reservoir, 

3 miles east of Buckley, and 8 miles downstream from Clearwater River.

Drainage area. 403 sq mi.

Records available. October 1928 to November 1933, October 1938 to September 1951.

Sage. Water-stage recorder. Datum of gage is at mean sea level, datum of 19?9. Oct. 26 

To Dec. 9, 1928, staff gage and Dec. 9, 1928, to Nov. 30, 1933, water-stage recorder 

at site 3 miles upstream at different datum. Nov. 26, 1938, to Feb. 14, 1?39, staff 

gage at present site and datum.

Average discharge. 18 years, 1,387 cfs.

Extremes. Maximum discharge during year, 9,650 cfs Feb. 12 (elevation, 806.7C ft); minimum, 424 cfs Sept. 23 (elevation, 799.42 ft).

1928-33, 1938-51: Maximum discharge, 17,000 cfs Feb. 26, 1932 (gage height, 17.5 

ft, site and datum then in use), from rating curve extended above 4,000 cfs; minimum, 

10 cfs Sept. 26, 1948 (elevation, 796.92 ft); minimum daily, 72 cfs Oct. 1J , 1942.-

Maximum stage known, 23.4 ft in December 1933 from floodmarks, at former site 

(discharge, 28,000 cfs, from rating curve extended above 3,000 cfs}.

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for period of no gage-height record, which are poor. No diversion. Flow regulated by Mud Mountain Reservoir for flood control (see preceding page).

Cooperation. Water-stage recorder inspected by employees of Corps of Engineers.

Rating table, water year 195O-51, except periods of shifting control (gage 

height, In feet, and discharge, in cubic feet per second)

799.5 

800.0 

800.5 

801.0 

801.5 

8O2.0

455

635

860

1,140

1,48O

1,880

802.5 

803.0 

804.0 

8O5.O 

806.0 

806.5

2,350 

2,900 

4,250 

5,970 

8.O20 

9,170

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

2& 

27

28

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

52C

536

810

810

810

1,020

1,140

2,200

2.840 

5,451!

1.34C.

1,38C

1,270

1,110 

1,080

1,170

1,440

1,590

1,340

1,170

1,050

992

1,300

1,240 

1,480

1,750

1,750

1,670

1,480

39,748

1,282

78,840

+32

Nov.

1,520 

1,840

2,300 

2,500

2,560

2,200

2,020

1,790

1,590

1,480

1,410 

1,300

1,240

1,170

*1,170

1,200 

1,200

1,110

1.050

1,270

2,500

3,140

3,810

4,540

*6,350

7.580 

6,350

5,330

3,950

3,950

-

79,420

2,647

157,500

+14,410

Dec.

3.810 

3,670

3,530 

3,400

3,270

3,400

3,530

3,530

3,400

3,400

3,400 

*3,270

3,270

3,140

2,960

2,72O 

2,400

2.O20

1.970

1,970

2,250

2,150

2,940

3,270

3,400

3,400 

3,400

3,270

3,140

3,020

2,780

95,080

3,067

188,600

-12,920

Jan.

2,450 

2,500

2,840 

2,780

2,560

1,880

1,590

1,520

1,410

1,300

1,240 

1,170

1,300

1,840

1,750

1,750 

1,790

1,550

1,380

1,240

1,300

1,200

*1 . 140

1,480

2,200

2,840

2,840

a2,400

al,900

al,500

57,600

1,858

114,200

-1,510

Feb.

1,300 

1,480

1,480 

1,340

1,240

1,170

1,380

2,060

3,020

7,580

*9.170 

6,40C

3,670

3,670

3,670

3,530 

3.4OO

3,140

2,840

1,910

1,520

1,410

1,340

1,270

1,240

1,110 

1,080

1.020

-

-

-

73,440

2,623

145,700

+66

Mar.

992 

965

938 

965

910

860

835

810

810

765

If!

,41C

,410

,840

* Cfl/"l w . .DmisS ,'sso

,440

,520

,670

,630

,480

,380

,380

,440 

,410

,340

,380

,440

,340

40,267

1,299

79,870

+12

Apr.

1.500 

1,380

1,630 

1,97O

2,100

2,100

2,100

2,100

2,060

1,880

1,750 

1,970

2,400

2.B4O

2.72O

2,620 

2,780

2,72O

2,560

2,250

1,840

1,630

1,52O

*1,480

1,440

1,480 

1,480

1,590

1,590

1,550

-

58,830

1,961

116,700

-56

May

1,410 

1,34O

1.300 

17485

1.88O

1,970

2,020

1,970

1,970

2,060

2.45O 

2,840

2,900

2,960

3.620

2,840 

2,560

2,670

2,670

2,620

2,56O

2,560

2.67O

2,840

3,020

2,960 

2,9OO

2,780

2,560

2,250

1,790

74,420

2,401

147, 6OO

+7

June

1.710 

*1,750

1,840 

1,880

1,880

1,970

1,970

1,880

1.97O

2,02O

2,100 

2,200

2,25O

2,350

2,500

2.560 

2,560

2,500

2,450

2,350

2,200

2,100

2,100

2,100

2.O6O

2,020 

1,970

1.92O

1,920

1,92O

-

63,000

2,100

125,000

+82

July

1.970 

1,880

,88O 

,750

,550

,440

,340

,3OO

» ,410

,440

,380 

,340

,410

,410

,340

,300 

,300

,380

,240

,140

,O8O

,O80

,140

,140

,080

,O5O 

,O2O

,050

992

992

965

40,789

1,316

SO, 900

-94

Aug.

965 

931

910 

910

860

860

835

835

860

860

835 

765

720

720

765

765 

765

720

720

*765

81O

810

698

635

595

595 

595

765

615

555

520

23,566

760

46,740

-130

Sept.

520 

520

52O 

520

538

575

655

742

635

595

538 

52O

520

520

538

555 

595

595

555

520

487

471

455

471

675

555 

455

487

538

1.450

-

17,320

577

34,350

+8O

Adjusted for change In reservoir contents

Mean

Cfsrn

In.

Ac-ft

1,282

3.1£

3.67

78,870

2,889

7.17

8.OO

171,900

2,857

7.O9

8.17

175,700

i;833

4.55

5.24

112,700

2.62E

6.51

6.76

145,800

1,29S

3.22

3.72

79,880

1,960

4.86

5.42

116,6OO

2,401

5.96

6.87

147,600

2,102

5.22

5.82

125,100

1,314

3.26

3.76

8O,81O

758

1.88

2.17

46,610

579

1.44

1.6O

34,430

Calendar year 1950: Max 

Water year 1950-51: Max

7,580 

9,17O

Mln 

Min

504 

455

Mean 2,O98 

Mean 1,818

Ac -ft 

Ac-ft

1,519,000 

1,316,OOO

Adjusted

Calendar year 1950: Mean 

Water year 1950-51: Mean

2,098 

1,818

Cfsm 

Cfsm

5.21 

4.51

In. 

In.

70.66 

61.22

Ac-ft 

Ac -ft

1,519,OOO 

1,316,000

* Discharge measurement made on this day.

t Change in contents in Mud Mountain Reservoir, in.acre-feet, furnished by Corps of Engineers, 

a No gage-height record; discharge estimated on basis of records for stations on nearby streams. 

Note. Shifting-control method used Oct. 1O to Dec. 26, Apr. 18 to May 15.
100 PUYALLUP RIVER BASIN

Lake Tapps near Sumner, Wash.

Location. Lat 47e 14'20", long. 122°11'30", in sec. 8, T. 20 N., R. 5 E., 1 mile east of 

Dlerlnger and 3 miles northeast of Sumner.

Drainage area. 12.5 sq mi.

Records available. October 1934 to September 1951. Prior to September 1950, change In 

contents published with tables of monthly discharge for Puyallup River at Puyallup.

Gage. staff gage read hourly. 

Tower and Light Co.).

Datum of gage Is at mean sea level (levels by Puget Sound

Extremes. Maximum contents observed during year, 48,100 acre-ft Dec. 1, 7, June 15, 25 

 (elevation, 540.0 ft); minimum, 27,910 acre-ft Mar. 13 (elevation, 53^.48 ft).

1934-51: Maximum contents observed during period, 48,100 acre-ft July 16, 1941, 

July 14, 21, 28, Aug. 4, 1947, July 12, 1948, Apr. 25, June 24, 25, July 3, 1949, Dec. 

1, 7, 1950, June 15, 25, 1951 (elevation, 540.0 ft); minimum, 11,630 acre-ft Nov. 2, 

1935 (elevation, 519.23 ft).

The Puget Sound Power and Light Co. reports a minimum observed lake elevation of 

505.70 ft June 24, 1912.

Remarks. Reservoir Is formed on natural lake into which a great part of the low-water 

Flow of White River Is diverted. Usable capacity, 50,400 acre-ft between elevations 

505 and 541 ft. Storage used for power.

Cooperation. Gage-height record and contents curve furnished by Puget Sound Power and 

Llgnt co.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31....................

Mar. 31....................

Elevation 

(feet)t

538.80 

539.22 

539.89 

537.85

-

538.18 

536.57 

531.77 

534.56 

538.54 

539.60 

539.60 

538.40 

539.43

-

Contents 

(acre-feet)

45,480 

46,380 

47,420 

42,930

-

44,100 

40,550 

30,440 

36,180 

44,890 

47,220 

47,220 

44,580 

46,850

-

Change in contents 

during month 

(acre-feet)

+920 

+1,040 

-4,490

-4,200

+1,170 

-3,550 

-10,110 

+5,740 

+8,710 

+2,330 

0 

-2,640 

+2,270

+1,390

t Elevation at midnight.
FOYALLUP RIVER BASIN 101

Stuck River near Stanner. Wash.

Location. Lat 47e 15'00", long. 122S 14'35", in NE$SW£ sec. 1, T. 20 N., R. 4 F., on right 

Dank 300 ft downstream from bridge, 3 miles north of Sumner, and 4f miles upstream 

from mouth.

Drainage area. 470 sq mi (revised).

Records available. January 1945 to September 1951.

Cage. Water-stage recorder. Datum of gage is at mean sea level (Intercounty River 

Improvement Commission benchmark).

Average discharge. 6 years, 736 cfs.

Extremes. Maximum discharge during year, 12,200 cfs Feb. 11 (gage height, 59.47 ft); 

minimum, 64 cfs Sept. 15.

1945-51: Maximum discharge, 13,100 cfs Dec. 14, 1946 (gage height, 59.74 ft); 

minimum, 43 cfs Oct. 19, 1946.

Remarks. Records good except those for periods of shifting control, which are fair, and 

EEose for periods of no gage-height record, which are poor. A yearly average of 600 

to 900 cfs diverted above gage into Lake Tapps for Dieringer powerplant of Puget Sound 

Power and Light Co. High flow influenced by regulation in Mud Mountain Reservoir (see 

P. 98).

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

&

9

10

11 

12

13

14

IS

16

17

IS

19

20

21

22

23

24 

25

26

VL

2S

29

30

31

Tote:

Mean

Ac- ft

Oct.

113

113

113

118

135

127

108

132

132

326

110 

630

283

187

171

155

142

163

205

205

185

168

153

145

153

163

147

179

208

190

182

6,141

198

12,180

Nov.

190

523

364

475

426

286

202

179

158

142

142

137

135

132.

140

 150

174

174

158

196

492

735

1,080

1,470 

2,920

4,700

5.040

4,200

2,820

2,820

-

30,760

1,025

61,010

Dec.

2,820

3,000

5.940

3,340

2,520

2,620

2,820

2,620

2,520

2,520

2,430 

2,430

2,380

2,300

2,200

2,120

1,980

1,730

625

 355

485

783

2,920

2,340 

2,340

2,430

2,720

3,810

3,170

2,120

1,690

72,078

2,325

143,000

Jan.

1,300

1,650

1,940

1,940

1,530

500

350

500

450

400

350 

300

350

300

150

300

250

350

500

350

350

250

250

300 

700

1,450

1,810

1,450

1,450

2.380

1,000

25,150

811

49,880

Feb.

450

350

250

300

300

250

 490

555

 2,800

7,190

11.000 

 8,700

3,850

3,610

2,840

2,330

2,190

1,980

1,630

962

390

274

248

237 

222

208

198

194

-

-

53,998

1,928

107 , 100

Mar.

203

189

198

227

222

213

198

203

203

184

184 

444

568

402

480

1.010

820

364

264

243

237

227

 213

203 

198

198

198

195

237

237

222

9,184

296

18,220

Apr.

222

222

222

253

416

512

496

696

466

303

213

213

459

1,100

1,040

918

940

1,010

841

624

309

198

 1^520

1,560

1,160

198

172

155

-

19,588

653

38,850

May

139

156

121

129

143

189

222

237

203

208

504 

1,020

1,160

1,190

1,750

1,040

658

740

810

1,120

820

584

2,180

2.210 

1,180

 1,150

1,060

940

750

466

213

23,272

751

46,160

June

168

147

151

143

143

151

159

151

139

155

222 

326

326

364

576

703

962

694

608

488

376

332

291

303 

297

243

227

208

194

194

-

9,441

315

18,730

July

213

189

189

184

136

132

132

125

125

125

125

114

114

111

114

111

111

 114

114

111

107

95

101

98

98

601

830

159

114

5,078

164

10,070

Aug.

107

101

101

101

101

98

98

92

95

88

85 

79

76

76

76

74

74

71

71

71

74

71

71

68 

74

76

82

107

98

95

88

2,639

85.1

5,230

Sept.

88

88

92

88

 88

98

104

104

98

98

95 

82

76

11

71

79

79

 88

82

82

79

76

76

76 

92

79

76

82

98

125

2,610

87.0

5,180

Calendar year 1950: Max 5,250 Mln 62 Mean 1,024 Ao-ft 741,000

Water year 1950-51: Max 11,000 Mln 68 Mean 712 Ac-ft 515,600

 Discharge measurement made on this day.

Note. No gage-height record Jan. 6-25, Jan. 31 to Feb. 6; discharge estimated on basis of records 

for stations on nearby streams. Shifting-control method used Oct. 1 to Nov. 25, Feb. 13 to Apr. 10.
102 PUSALLUP RIVER BASIN

Puyallup River at Puyallup, Wash.

Location. Lat 47°12'20", long. 122e 19'30n , in NE$ sec. 20, T. 20 N.. R. 4 E., on left 

Dank 1 mile upstream from bridge at Clarks Creek, 1 mile northwest of Puyallup, and 

7 miles upstream from mouth.

Drainage area. 948 sq ml.

Records available. May 1914 to September 1951.

. Water-stage recorder. Datum of gage is at mean sea level, datum of 1929. Prior 

o Dec. 3, 1919, at site l£ miles upstream at different datum. Dec. 3, 1919, to Nov. 

9, 1935, at site 500 ft upstream at datum 9.61 ft higher than present datum.

Average discharge. 37 years, 3,273 cfs (adjusted for storage in Lake Taops since October 

1934, and Mud Mountain Reservoir October 1944 to September 1947).

Extremes. Maximum discharge during year, 29,800 cfs Feb. 11 (gage height, 22.98 ft); mlnimum, 780 cfs Sept. 3 (gage height, 8.61 ft); minimum dally, 868 cfs Sept. 1.

1914-51: Maximum discharge, 57,000 cfs Dec. 10, 1933 (gage height, 31.0 ft, present 

datum); minimum, probably less than 350 cfs Nov. 24, 28, Dec. 1, 3-5, 1929.

jcs.--Records good. All diverted water returned to river above gage. Large part of 

ow of White River diverted into Lake Tapps (usable capacity, 50,400 acre-ft) returned 

via Stuck River above station. Flood flow regulated by Mud Mountain Reservoir on White 

River. Some pondage on tributaries and upper Puyallup River. Diurnal fluctuation 

caused by powerplantS above station.

Revisions. W 832: Drainage area.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

z

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

Ac-ft

(t)

Oct.

1.020

1,510

1,300

1,500

2,310

2,680

2,150

2,230

3,520

6.860

6,810 

4,820

3,830

3,470

2,470

2,850

2,420 

3,020

3,640

3,810

3,240

2,630

2,440

2,200

3,110

3,170

3,580

3,570

3,320

3,840

3,490

96,810

3,123

192,000

+920

Nov.

3,500

4,640

4,860

4,750

4,580

3,900

3,820

3,580

3,180

2,980

2,550 

1,970

2,610

2,590

2,600

*E,840

3,070 

2,750

1.760

3,060

5,460

7,830

9,040

12,000

12,700

13.700

13,300

10,800

7,510

7,190

-

165,120

5,504

327,500

+1,040

Dec.

6,800

6,290

6,370

8,530

7,780

9,840

9,530

7,800

6,990

6,480

6,470 

6,540

5,870

5,560

5,350

5,100

3,980 

4,480

*5.680

3,770

4,420

4,450

11.400

8,630

7,760

6,960

6,800

7,920

7,280

5,790

5,280

203 , 900

6,577

404,400

-4,490

Jan.

4,700

6,350

7,790

6,700

5,900

4,920

4,080

4,080

3,850

3,440

3,300 

3,100

2.940

3,850

4,180

4,550

5,110 

4,910

4,240

3,610

3,660

4,500

3,870

3,910

5,970

7.870

7,650

5,920

5,230

4,800

4,200

149,180

4,812

295,900

+1,170

Feb.

3,800

*4,100

4,330

3,670

3,750

3,600

4,610

6,310

* 14, 800

*21,200

25.800 

*2 1,300

11,900

9,880

8,200

6,960

6,330 

5,260

5,060

4,970

3,860

3,510

3,360

3,220

2.620

3,030

2,940

2,870

_

-

-

201,240

7,187

399,200

-3,550

Mar.

2,900

2,850

2,810

2,790

2,870

2,890

2,720

2,740

2,700

2,530

2.560 

3,580

5,150

4,510

5,950

6.690

5,160 

3,810

3,770

3,800

3,830

3,720

3,610

3,410

3,040

 3,130

3,350

3,260

3,120

3,210

3,140

109,400

3,529

217,000

-10,110

Apr.

2,910

2,980

3,130

3,320

3,450

3,390

3,320

3,170

3,320

3,130

3,010 

3,150

3,710

4,320

3,740

*4,250

4.330 

4,320

3,990

3,670

3,120

2.430

3,940

4,080

4,040

4,180

4,010

2,870

2,650

2,890

-

104,820

3,494

207,900

+5,740

May

2,750

2,660

2.600

2,770

3,070

2,660

3,350

3,340

3,220

3,400

5..060 

5,340

4,480

4,620

4,850

4,460

4,390 

4,630

4,380

4,550

4,360

4,330

6,270

6.730

5,890

5,060

4,570

4,450

*3,830

3,560

3,100

128,730

4,153

255,300

+8,710

June

3,040

3,000

2.760

3,060

3,200

3,230

3,340

3,310

3,230

3,370

3,720 

3,910

3,900

4,180

4,500

4,570

4.650 

4,340

4,180

3,980

3,830

3,780

3,600

3,700

3,700

3,570

3,550

3,500

3,610

3,640

-

109,950

3,665

218,100

+2,330

July

3,450

3,390

3,460

2,900

3,310

3,100

2,900

2,440

2,850

*2,280

2,220 

2,590

2,730

2,640

2,550

2,660

2,650 

2,880

2,740

2,580

2,470

i,440

2,380

2,560

2,430

2,090

2,050

1,890

2,220

2,260

1,940

80,060

2,583

158,800

0

Aug.

2,080

2,060

2,050

1,780

1,660

2,130

1,990

2,020

2,060

2,040

1,380 

1,120

1,740

1,600

1,980

2,110

2,060

1,270

1,130

1,970

1,980

2.240

2,180

2,020

990

950

1,990

2,110

1,600

1,380

1,430

55 , 100

1,777

109,300

-2,640

Sept.

868

874

880

1,220

1,480

1,420

*1,330

1,460

1,130

1,580

1,410 

1,340

1,310

1,360

1,100

1,010

1,580 

1,720

1,600

1,420

1,410

1,050

882

1,340

1,780

1,520

1,520

1,170

1,040

5.130

-

40,934

1,364

81,190

+2,270

Adjusted for change in lake

Mean

Cfsm

In.

Ac-ft

5,157

-

.

192,900

5,521

_

_

528,500

6,504

.

_

599,900

4,852

.

_

297,100

7,125

_

_

595,600

3,365

_

_

206,900

3,590

_

_

215,600

4,294

-

_

264,000

5,704

_

_

220,400

2,585

-

_

158,800

1,755

_

_

106,700

1,403

_

_

83,460

Calendar year 1950: 

Water year 1950-51:

Max 

Max

14 

25

,700 

,800

Mln 

Mln

970

868

Mean 

Mean

4,664 

3,960

Ac-ft 

Ac-ft

3,576 

2,867

,000 

,000

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

4 

3

,658 

,961

Cf sm 

Cfsm 4.18

In. 

In. 56.72

Ac-ft 

Ac-ft 2,868 ,000

Discharge measurement made on this day. 

t Change In contents In Lake Tapps, In acre-feet, furnished by Puget Sound Powe" 4 Light Co.
DUWAMISH RIVIR BASIN 103

Snow Creek near Lester, Wash.

Location. Lat 47°15', long. 121'24>, In NWiNtf£ sec. 3, T. 20 N,, R. 11 E., on right 

Dank a quarter of a mile upstream from mouth and 5f miles northeast of tester1 .

Drainage area. 11.9 sq ml.

Records available.--October 1945 to September 1951.

Gage.--Vfater-stage recorder. Altitude of gage Is 1,950 ft (from topographic mat)).

Average discharge. 6 years, 70.0 cfs.

Extremes. Maximum discharge during year, 842 cfs Feb. 9 (gage height, 4.69 ft); minimum, 

4 Tl cfs Sept. 15, 16, 20-24 (gage height, 2.11 ft).

1945-51: Maximum discharge, 988 cfs Dec. 11, 1946 (from rating curve extended above 

160 cfs); maximum gage height, that of Feb. 9, 1951; minimum discharge, that of Sept. 

15, 16, 20-24, 1951.

Remarks. Records excellent except those for periods of no gage-height record, which are 

fair. No diversion or regulation.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second)

2.1

2.2

2.3 

2.5 

2.7

3.8

8.3

14.5

32

57

3.0 

3.3 

3.6 

3.9 

4.4

105

168

250

364

640

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total 

Mean

Cfsm

In. 

Ac-ft

Oct.

13

12

12

17. S

28

36

39

44

152

m70

61 

52

45

42

 47

54

54

50

47

42

39

43

40 

57

68

76

70

63

1,654.5 

53.4

4.49

5.17 

3,280

Nov.

70

92

140

157

148

125

119

101

84

70

61 

54

48

44 

40

38

36

32

84

338

268

304

323

312 

271

195

146

115

-

3,877 

129

10.8

12.12 

7,690

Dec.

92

76

67

60

53

50

49

 15

54

60

98 

125

105

89 

76

70

70

63

1 71

87

138

228

460

323

264

182 

138

115

103

100

89

3,605 

116

9.75

11.27 

7,150

Jan.

82

89

96

76

64

57

52

48

44

42

39 

37

40

43 

37

34

36

32

29

28

28

26

25

15

87

ma88

a75

a66

a62

1,765 

56.9

4.78

5.52 

3,500

Feb.

a58

a58

a52

47

43

39

39

74

 539

594

545 

300

182

136 

105

87

76

67

60

54

50

47

43

40

38

36 

33

32

-

-

-

3,474 

124

10.4

10.86 

6,890

Mar.

30

29

a28

a 28

a27

a26

a25

a24

a24

a23

al2

24

24 

53

53

47

44

44

48

54

52

48

47

49

54 

57

54

56

54

53

1,223 

39.5

3.32

3.82 

2,430

Apr.

56

68

96

133

138

133

146

131

121

111

113 

153

197

203 

 187

187

200

190

155

125

103

92

89

91

98

107 

117

140

142

121

-

3,943 

131

11.0

12.32 

7,820

May

101

92

96

133

180

182

178

159

164

219

396 

265

175

144 

133

157

 192

173

142

131

142

180

206

211

214

159 

136

121

101

89

82

5,048 

163

"13.7

15.78 

10,010

June

82

91

100

~§4

94

101

98

96

100

100 

96

91

94 

98

91

81

74

*68

63

60

56

53

SO

48

45 

42

39

36

34

-

2,276 

75.9

6.38

7.11 

4,510

July

3k

30

28

25

23

23

22

21

19

18.5

17.5 

16.5

16

15 

14.5

14.5

14

13

12.5

12.5

12

11

11

10.5

»10

10 

9.4

9.4

8.8

495.2 

16.0

1.34

1.55 

982

Aug.

7.8

7.8

7.8

7.2

7.2

7.8

7.8

7.8

7.2

7.2

7.2 

7.2

7.2

7.2 

7.2

6.8

 6.8

6.8

6.2

6.2

6.2

6.2

5.8

s'.s

5.8 

5.8

8.8

7.2

6.8

6.2

£14.8 

6.93

C.582

0.67 

426

Sept.

5.8

5.8

5.8

5.8

5.4

5.4

6.8

7.2

5.8

5.4

5.4 

4.9

4.5

4.5

4.1

4.5

4.5

4.5

4.1

4.1

4.1

4.1

4.1

11

 7.2 

6.2

7.8

11

14

207.9 

6.93

0.582

0.65 

412

Calendar year 1950: Max 460 Mln 6.8 Mean 87.3 Cfsm 7.34 In. 99.57 Ac-ft 63,180

Water year 1950-51: Max 594 Mln 4.1 Mean 76.1 Cfsm 6.39 In. 86.84 Ac-ft 55,100

Peak discharge (base. 350 ofs). Oct. 10 (12 m.) 382 cfs (3.94 ft); Nov. 22 (4 p.m.) 405 cfs (3.99 

ft); Nov. 25 (9 p.m.) 382 cfs (3.94 ft): Dec. 23 (3 to 4 p.m.) 504 cfs (4.18 ft); Feb. 9 (8:30 p.m.) 

842 cfs (4.69 ft); May 11 (7 to 11 a.m.) 445 cfs (4.07 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.

288995 O - 54 - 8
104 DUWAMISH RIVER BASIN

Friday Creek near Lester, Wash.

Location. Lat 47°13', long. 121-27', in SE$NW£ sec. 18, T. 20 N., R. 11 E., on left bank 

0.4 mile upstream from mouth and 2 miles northeast of Lester.

Drainage area. 4.55 sq mi (revised).

Records available. October 1945 to September 1951.

Gage . Water-stage recorder. Concrete control since Aug. 9, 1951. Altitude of gage is 

about 1,760 ft (from topographic map).

Average discharge. 6 years, 29.5 cfs.

Extremes. Maximum discharge during year, 262 cfs Feb. 11; maximum gage height, 4.57 ft 

Nov. 22; minimum, 2.1 cfs Sept. 20-24, 27, 28.

1945-51: Maximum discharge, 497 cfs Dec. 11, 1946 (gage height, 4.90 ft); minimum, 

1.3 cfs Sept. 26-29, Oct. 2, 3, 1949.

Remarks. Records good except those for periods of ice effect or no gage-height record,

which are poor. No diversion or regulation.

Rating tables, water year 195O-51, except periods of Ice effect (gage height, 

In feet, and discharge. In cubic feet per second)

Oct. 1 to Nov. ZZ

3.1 

3.3 

3.6

3.4 

11.5 . 

33

3.9 

4.2 

4.5

Nov. ZZ to Aug. Z

133

218

2.5 2.9

Z.I 7.4

3.0 19.5

3.3 4O

3.6 73

3.9 131

4.2 230

Aug. 3 to Sept. 3O

2.5 

Z.I 

2.9

1.3 

6.O

Discharge, in cubic feet per second, water year October 1950 to Septenber 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

5.8

5.5

5.2

5.8

8.3

11.5

12.5

13.5

14

90

53

31

23

22 

18.5

16.5

16

 17.5

2O

2O

17.5

16

15.5

15 

16.5

22

20

23

26

23

21

625.1

20. 2

4.44

5.11

1,240

Nov.

30

37

53

53

48

43

38

31

27

23

20

18.5

17

16 

15.5

15

14

13.5

12.

13.5

45

1BB

123

136 

124

108

98

75

57

46

-

1,535.0

51.2

11.3

12.55

3,040

Dec.

38

31

27

24

22

23

23

 22

28

31

49

56

45

37 

31

29

3O

28

29

36

50

77

168

117 

95

66

49

44

41

38

33

1,417

45.7

1O.O

11.58

2,810

Calendar year 1950: Max 188

Jan.

31

4O

41

29

23

2O

18

17

15.5

14.5

14

13

16

22 

16.5

14

14

12.5

11.5

10

10

9.6

8^6

19.5 

4O

27

b25

b22

b20

663.2

21.4

4.70

5.42

1,32O

Feb.

b20

b!8

16

14.5

14

12

14

35 210

184

199

110

69

51 

42

36

31

28

24

23

21

20

19

18

17

15

14

13

_

_

-

1,287.5

46. Q

10.1

10.52

2,550

Mln 3.4

Mar.

12.5

12

11.5

11

10.5

10

9.6

9.3

9.O

8.6

8^3

8.3

10.5

12 

24

26

19.5

18

18.5

21

25

21

18

18 

19

20

22

20

21

20

21

495.1

16. 0

3.52

4.05

982

Apr.

11

25

30

40

40

40

45

45

40

38

40

50

55

60 

*56

57

60

57

49

41

35

31

29

29 

3O

33

38

46

46

41

-

1,247

41.6

9.14

10.19

2,470

May

36

22.

35

44

58

6O

6O

56

57

76

161

155

72

59 

53

60

 72

65

57

54

58

70

84

89 

86

68

58

54

49

44

40

1,976

63.7

14.0

16.15

3,920

June

39

42

44

45

43

43

18

46

44

44

44

42

4O

4O 

39

36

33

30

 28

25

23

21

20

18.5

17

16

14.5

13.5

12.5

12

963.0

32.1

7.05

7.87

1,910

July

11*5

10.5

10

9.6

9.0

'9.6

8.3

8.0

7.7

7.1

6.8

6.5

6.2

6.0 

6.0

5.8

5.5

5.5

5.2

5.2

5.0

4.8

4.6

4.6 

 4.4

4.4

4.2

4.2

4.0

4.0

iiS

If 8.0

6.39

1.40

1.62

393

Aug.

3.8

3.6

3.5

3.5

3.5

3.5

3.5

3.5

3.6

3.6

3.6

3.6

3.6

3.6 

3.3

3.3

 3.1

3.1

3.1

3.1

3.1

3.1

3.1

2^8 

2.8

2.8

2.8

4.4

3.6

3.1

2.8

1O3.4

3.34

0.734

0.85

205

Sept.

2.8

2.8

2.8

2.6

2.6

2.6

 3.3

3.6

2.6

3.1

2.8

2.6

2.4

2.2 

2.2

2.2

2.2

2.2

2.2

2.2

lil

2.1

2.1

2.1

5.7

 2.6

2.2

3.1

4.4

1*

92.4

3.08

0.677

0.76

183

Mean 34.1 Cfsm 7.49 In. 1O1.75 Ac-ft 24,680

Water year 195O-51: Max 21O Mln 2.1 Mean 29. O Cfsm 6.37 In. 86.67 Ac-ft 21,020

Peak discharge (base. ISO cfs) . Nov. 22 (6:30 a.m.) 242 cfs (4.57 ft)j Dec. 23 (1 p.m.) 188 cfs 

(4.09. ft); Feb. 11 (10 a.m.) 262 cfs (4.27 ft)j May 11 (12:30 a.m.) 178 cfs (4.OP ft).

 Discharge measurement made on this day.

t> Stage-discharge relation affected by ice.

Note. No gage-height record Mar. 24 to Apr. 14, Aug. 3-8; discharge estimated on basis of records 

for stations on nearby streams.
DUWAMISH RIVER BASIN 105

Green River near Lester, Wash.

Location. Lat 47°12'30", long. 121°33'20", in NE^SE^ sec. 20, T. 20 N., R. 10 E., on 

right bank l£ miles downstream from McCain Creek and 3 miles west of Lester.

Drainage area. 104 sq mi.

Records available. October 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,465 ft (from topographic trap).

Average discharge. 6 years, 456 cfs.

Extremes. Maximum discharge during year. 4,790 cfs Feb. 9 (gage height, 9.60 ft); minimum, 

 U7 cfs Sept. 21 (gage height, 3.01 ft).

1945-51: Maximum discharge, 9,200 cfs probably Dec. 11, 1946 (gage heig-ht, 12.7 ft,

from high-water mark In well), from rating curve extended above 2,600 cfs; minimum,

that of Sept. 21, 1951.

Remarks. Records good except those for period of no gage-height record, whicl- are fair. 

Ho diversion or regulation.

Rating table, water year 1950-51 (gage height, In feet, and discharge, In cubic 

feet per second)

3.0 

3.2 

3.4 

3.6

3.8 

4.1 

4.4 

4.7

100

154

226

316

5.0 

5.5 

6.0 

6.5

4 2O

640

920

1,26O

7.0 

7.5 

8.0 

9.0

1,670 

2,140 

2,670 

3,92O

Discharge, In cubic feet per second, water year October 1950 to September

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.

Ac-ft

Oct.

69

64

6O

So

72

99

114

130

167

986

690

436

319

294

260

226

213

 223

254

269

254

232

213

198

210

213

281

396

468

432

392

6,294

268

2.58

2.97

16,450

Nov.

371

424

590

715

715

64O

615

540

460

402

36O

323

287

269

248

240

229

208

190

200

592

2 .160

17815

2,090

2,040

2,O9O

1,800

1,420

1,050

830

-

23,948

798

7.67

8.56

47,500

Dec.

690

565

488

448

399

399

 399

382

444

520

740

1,020

800

665

565

520

496

480

476

484

8OO

927

2.500

2,190

1,760

1,380

1,020

89O

770

74O

69O

24,647

795

7.64

8.81

48,890

Jan.

640

690

89O

690

565

476

416

374

340

316

294

275

303

460

392

357

336

297

T272

246

240

223

205

24O

540

1.120

86O

615

5OO

440

385

13,997

452

4.35

5.O1

27,76O

Feb.

347

33O

340

319

a3OO

a280

a330

aSOO

 3,220

3.590

3,140

1,990

1,260

920

715

590

520

448

406

371

340

316

300

290

272

248

232

221

_

.

-

22,035

787

7.57

7.88

43,710

Mar.

210

20O

198

200

186

174

167

161

156

ISO

144

III

167

188

448

436

350

316

319

368

444

406

357

340

371

410

424

410

424

428

396

9,O96

293

2.82

3.25

18,04O

Apr.

420

540

770

1,020

98O

890

95O

830

740

98O

69O

920

1.260

1,260

 1,160

1,12O

1,190

1,120

89O

715

590

520

484

484

520

540

590

665

69O

615

-

24,143

805

7.74

8.63

47,890

May

520

484

488

640

95O

950

95O

890

89O

1,160

2 .190

1,670

1,160

1,62O

770

830

 1,050

950

770

690

690

830

1,020

1,020

1.O8O

830

690

615

540

492

444

27,873

899

8.64

9.97

55,290

June

424

432

452

4J2

452

456

472

456

444

444

452

440

420

420

436

410

368

333

 310

284

269

254

237

226

213

200

188

176

167

158

-

10,465

349

3.36

3.74

20,760

July

152

144

138

134

127

129

118

110

106

1OO

96

92

90

87

85

81

SO

76

75

73

7O

68

65

64

 63

60

59

56

55

53

52

2,758

89.0

0.856

0.99

5,470

Aug.

50

49

48

47

46

45

44

45

46

46

47

48

47

44

44

43

 42

41

41

41

39

39

39

39

38

37

38

47

49

44

41

1,354

43.7

0.420

0.48

2,690

Sept.

39

38

37

36

35

34

 40

48

41

38

39

36

34

33

31

31

3O

30

30

30

29

M

28

30

45

 44

34

36

44

125.

1,153

38.4

0.369

0.41

2,290

Calendar year 195O: Max 2,500 Mln 44 Mean 559 Cfsm 5.38 In. 73. OO Ac-f; 4O5,OOO

Water year 1950-51: Max 3,39O Mln 28 Mean 465 Cfsm 4.47 In. 60.70 Ac-f, 336,700

z,oeu era \f.ao njj reo. a \o p.m.; 4,/au cis ^a.bu itj; nay J..L \±c m. i £,*uu BIB v'*'' ^^;.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

stations on nearby streams.
106 DUWAMISH RIVER BASIN

Smay Creek near Lester, Wash.

Location.--Lat 47°15'40", long. 121°33'50". In SW£ sec. 32, T. 21 N., R. 10 E., on right 

bank 3^- miles upstream from mouth and 4£ miles northwest of Lester.

Drainage area. 8.71 sq mi (revised).

Records available. September 1946 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 1,900 ft (from 

topographic map). Prior to Dec. 12, 1946, water-stage recorder 200 ft upstream at 

datum 4.28 ft higher, destroyed by high water of Dec. 11, 1946. Jan. 24 to June 4, 

1947, water-stage recorder at present site at datum 1.40 ft higher than present datum.

Average discharge. 5 years, 56.2 cfs.

Extremes.--Maximum discharge during year, 457 cfs Feb. 9 (gage height, 4.49 ft); minimum, 

BTFTfs Sept. 23, 24 (gage height, 2.53 ft).

1946-51: Maximum discharge not determined, probably occurred Dec. 11, 1946, when 

recorder was dislodged by high water: minimum, 6.2 cfs Oct. 17-19, 194« (gage height, 

0.92 ft, site and datum then in use).

Remarks.--Records good. No diversion or regulation.

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.5

2.6 

2.8 

3.0 

3.2

5.0

6.4

19

36

59

3.4 

3.7 

4.0 

4.3

157

247

366

Discharge, in cubic feet per second, water year October 195O to Septe-nber 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

total

Mean

Cfsm

In.

Ac-ft

Oct.

11.5

11

10.$

11.5

14.5

15.5

17

18

21

US

97

64

49

45

39

34

32

 36

39

39

38

37

34

32

32

30

38

41

45

46

44

1,139.5

36.8

4.23

4.87

2,260

Nov.

54

66

88

95

86

77

71

64

58

54

49

45

43

40

38

37

34

30

29

32

66

249

224

247

247

230

193

157

126

107

-

2,936

97.9

11.2

12.54

5,820

Dec.

89

77

68

64

58

64

68

 65

68

70

89

111

105

89

81

79

77

76

79

84

101

135

265

224

179

104

118

105

95

93

86

3,102

100

11.5

13.24

6,150

Jan.

82

99

103

88

74

68

60

56

52

49

46

44

54

55

52

49

47

44

42

39

38

36

li

51

77

109

91

74

65

60

55

1,893

61.1

7.01

8.08

3,750

Feb.

51

51

49

44

43

4O

45

77

352

 357

366

240

160

124

101

86

76

68

62

58

52

50

46

44

41

, 40

37

36

.

-

2,796

99.9

, 11.5

11.94

5,550

Mar.

34

32

30

30

30

29

27

26

26

25

24

24

27

26

36

37

34

34

34

34

36

34

34

34

36

40

ii

41

41

41

40

1,017

32.8

3.77

4.34

2,020

Apr.

40

43

51

68

77

77

82

82

76

71

71

84

107

115

 111

113

122

118

103

88

79

70

64

60

60

62

74

105

101

89

-

2,463

82.1

9.43

10.52

4,890

May

79

71

68

76

97

103

103

97

95

115

199

165

124

101

91

93

107

»103

91

84

84

95

111

118

122

101

88

81

72

65

60

3,059

98.7

11.3

13.06

6.O7O

June

56

56

58

59

58

58

£2

60

59

59

59

56

55

54

54

51

47

44

43

»40

38

37

34

34

32

30

29

28

27

25

-

1,402

46.7

5.36

5.99

2,780

Jvly

21

24

23

22

22

21

20

19.5

19

18

17.5

17.5

17

17

17

16

15.5

15

14.5

14

13.5

13

13

13 *13

12.5

12

12

12

11.5

TTs

510.5

16.5

1.89

2.18

1,010

Aug.

11.5

11

11

10.5

10

10

10

10

10

9.6

9.6

9.6

9.6

9.6

9.2

9.2

 9.2

9.2

9.2

8.8

er.e

8.8

8.8

3,4

8.4

8.4

8.4

11

10

9.6

8.8

296.2

9.55

1.10

1.26

588

Sept.

8.8

8.4

8.4

8.4

8.4

8.0

 8.. 8

9.2

8.8

8.8

8.8

8.0

7.6

7.6

7.6

7.6

7.2

7.2

7.2

7.2

6-9

6.9

6.9

6.9

*10.5

8.4

7.6

8.4

10.5

22

-

257.0

8.57

0.984

1.10

510

Calendar year 1950: Max . 265 Min 9.6 Mean 70.3 Cfsm 8.07 In. 1O9.61 Ac-ft 50,910

Water year 195O-51: 195Q-51; Max 366 Min 6.9 Mean 57.2 Cfsm cra6.57 In. 89.12 Ac-ftr 41.4OO,

Peak discharge (base. 2OO cfs).--Nov. 22 (Z a.m.) 295 cfs (4.13 ft): Dee. 23 (S p.m.^ 287 cfs 

(4.11 ft); Feb. 9 (7:3O p.m.) 457 cfs j(4.49 ft); May 11 (3:30 p.m.) 217 cfs (3.91 ft). 

* Discharge measurement made on this day.
DUWAMISH RIVER BASIN 107

Charley Creek near Eagle Gorge, Wash.

Location.--Lat 47°15'00", long. 121°47'00", in SW£NW£ sec. 3, T. 20 N., R. 8 E., on left 

bank 300 ft downstream from Beaverdam Lake Creek, l£ miles south of Eagle 0-rge, and 

If miles upstream from mouth.

Drainage area. 11.0 sq mi (revised).

Records available.--September 1946 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,350 ft (from topographic nno).

Average discharge. 5 years, 76.6 cfs.

Extremes. Maximum discharge during year, 1,510 cfs Feb. 11 (gage height, 5.71 ft), from 

rating curve extended above 570 cfs by logarithmic plotting; minimum, 9.9 cfs Sept. 23, 

24, (gage height, 1.12 ft).

1946-51: Maximum discharge, that of Feb. 11, 1951; maximum gage height, 6.17 ft 

Dec. 11, 1946; minimum discharge, 7.2 cfs Oct. 19, 1946.

Revisions. The maximum discharge for the water year 1950 has been revised to 810 

cfs Mar. 4, 1950 (gage height, 4.55 ft), superseding figure published in Water-Supply 

Paper 1182.

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. No diversion o" regulation.

Rating tables, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 10

1.4 ZO 2.3 104

1.6 32 2.6 149

1.6 46 3.0 232

2.0 6S

Note. Same as following table above 3.0 ft.

1.1 

1.3

1.5

1.6

Feb. 11 to -Sept. 30

2.1 71

2.5 126

3.0 232

3.5 374

4.0 555

4.5 7S5

5.0 1,070

Discharge, in cubic feet per second, water year October 1950 to September 19"!

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.

Ac-ft

Oct.

24

23

22

24

48

49

47

67

71

411

226

117

84

75 

61

54

51

66

 91 

89

79

6S

59

53

52

49

65

79

92

89 

83

2,472

79.7

7.25

6.36

4,900

Nov.

112

132

232

165

114

108

105

94

61

74

66

58

54

51 

49

50

48

45

*

250

515

397

489

315

234

220

185

151

128

4,691

156

14.2

15.86

9,300

Dec.

107

as. 95

117

126

276

254

175

147

149

194

165

147

121 

107

105

125

120

 108 

101

95

159

341

292

312

194

154

160

149

146 

121

4,964

161

14.6

16.85

9,890

Jan.

154

306

225

153

118

101

90

80

74

67

62

61

166

144 

114

110

105

86

76 

66

65

56

57

164

29S

265

156

112

96

64 

74

3,809

123

11.2

12.66

7,560

Feb.

70

104

107

91

79

74

104

276

362

618

971

Il5

203

146 

120

103

95

64

78 

73

66

64

60

56

53

50

46

45

"

5,019

179

16.3

16.97

9,960

Mar.

43

42

42

42

40

36

36

34

33

32

21

40

52

52 

120

IS2

95

60

70 

80

90

85

75

65

70

82

 84

75

70

67 

61

1,956

63.1

5.74

6.61

3,660

Apr.

59

66

66

116

113

107

110

106

92

82

81

100

139

148 

135

135

140

128

112 

95

83

75

68

64

63

 64

77

106

110

99

2,959

96.6

6.96

10.00

5,870

May

87

79

77

91

113

112

112

109

103

110

!S!

162

121

99

S4

81

S2

 77

69

62

61

64

75

90

S4

72

67

61

56

51 

41

2,745

88.5

8.05

9.28

5,440

June

45

43

42

40

39

39

40

37

36

34

33

33

33

31 

30

29

26

27

26

 25

24

23

22

22

21

20

20

19.5

19

18^5

699.0

30.0

2.73

3.04

1,780

July

ia17.5

17

17

17

17

17

16.5

16

15.5

15.5

15

15

15 

14.5

14.5

14

14

14 

13.5

13.5

13.5

13.5

13.5

13.5

 13.5

13

13

13

m

45S.5

14.8

1.35

1.55

909

Aug.

12.5

12.5

12

12

12

12

12

12

12

12

12

12

12

11.5 

11.5

 11.5

11.5

11.5

11.5 

11.5

11.5

11.5

11

11

11

11

11

11.5 

11

365.0

11.8

1.07

1.23

724

Sept.

11

11

10.5

10.5

10.5

 10.5

11.5

11.5

10.5

11

11

10.5

10.5

10.5 

10.5

10.5

10.5

10.5

10.5 

12

10

10

10

10

22

 11.5

10.5

15.5

16

60

389.0

13.0

1.18

1.32

- 772

Calendar year 1950: Max 556 Min 12 Mean 98.5 Cfsm 8.95 In. 121.58 Ac-ft 71,320

Water year 1950-51: Max 971 Min 10 Mean 84.2 Cfsm 7.65 I". 103.95 Ac-ft 60,980
108 DUWAMISH RIVKR BASIN

Bear Creek near Eagle Gorge, Wash.

Location.--Lat 47°17iOO", long. 121°48'10", in NW£ sec. 28, T. 21 N., R. 8 E., on left 

bank a quarter of a mile upstream from mouth and 2j miles northwest of Eagle Gorge.

Drainage area. 4.25 sq mi (revised).

Records available. September 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,000 ft (from topographic map). Prior 

Po Sept. 8, 1949, water-stage recorder 25 ft upstream at same datum.

Average discharge.--5 years, 26.8 cfs.

Extremes. Maximum discharge during year, 830 cfs Feb. 11 (gage height, 4.00 ft), from 

rating curve extended above 70 cfs on basis of slope-area-determination of peak flow; 

minimum, 0.7 cfs Sept. 16-24.

1946-51: Maximim discharge, that of Feb. 11, 1951; minimum recorded, 0.1 cfs Sept. 

27-29, Oct. 3 and about Oct. 18, 19, 1946.

Remarka. Records good except those for periods of no gage-height record, which are poor. 

No diversion or regulation.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 23

5.1

12.5

24

42

81

151

Nov. 24 to Sept. 30

.8

1.0 

1.2 

1.5

0.7

4.4

12.0

24

40

73

1.8 

2.1 

2.5 

3.0 

3.5

115

171

264

415

600

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

6.9

6.0

5^4

6.9

26

30

26

37

37

132

76

42

28

26

20

17

»15

28

50

44

32

26

21

17.5

19

23

35

44

51

44

39

1,010.7

32.6

7.67

8.84

2,000

Nov.

52

63

76

60

44

42

49

39

30

24

20

17

14

12.5

 11.5

13.5

13.5

13

11

38

92

136.

94

126

81

72

71

»63

53

44

-

1,475.0

49.2

11.6

12.91

2,930

Dec.

36

28

29

45

49

78

81

66

56

57

65

67

53

42

35

3.4

56

51

41

38

38

52

90

85

82

66

61

62

56

56

48

1,700

54.8

12.9

14.88

3,370

Jan.

58

89

78

59

43

34

28

24

21

18.5

16.5

17

55

66

48

43

50

 36

30

23

20

17

15

70

90

70

45

35

30

26

22

1,277.0

41.2

9.69

11.17

2,530

Feb.

20

30

30

27

26

25

30

100

400

300

*550

300

150

110

80

60

50

40

33

27

23

20

18

16

14

12

11

*I2

-

-

-

2,512

89.7

21.1

21.98

4,980

Calendar year 1950: Max 212 Hln 2.0

Mar.

10

9

9

9

8

8

8

8

8

1

7

8

16

15

43

45

32

27

26

30

40

*33

29

26

30

§3

45

36

34

32

28

719

23.2

5.46

6.29

1,430

Apr.

27

32

42

52

45

39

41

36

29

25

25

36

*47

41

38

38

38

33

28

22

18

15.5

14

13.5

13

13.5

18

27

29

26

-

901.5

30.0

7.06

7.89

1,790

Hay

23

19.5

18

21

24

23

21

19.5

18.5

20

43-

39

30

25

20

18

15.5

14

12.5

11

10

l^fi

14

 28

33

23

18.5

15.5

13

11.5

10.5

622.1

20.1

4.73

5.44

1,230

June

9*2-

8.'

8 .

7.

7.

8 .

8.

7.

6.

6.

6.

6.

6.

6.

6.

5.

5.

5.

5.

5.

5. *s!<

4.

4.

4.

4.1

3^£

3.8

3.8

3.8

-

180.2

6.01

1.41

1.58

357

July

!*£

3.6

3.6

3.4

3.4

3.4

3.4

3.4

2.9

2.9

2.7

2.5

2.5

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.1

 1.9

1.7

i^fi

1.6

1.6

1.6

78.7

2.54

0.598

0.69

156

Aug.

.6

.6

.4

.4

.3

.1

.1

.1

.1

.3

.3

.3

.3

.3

.3

» .3

.3

.1

.1

.0

.0

.0

1.0

^9

.9

.9

.9 3_a

1.9

1.4

1.4

39.7

1.28

0.301

0.35

79

Sept.

1.

1.

1.

1.

1-

»1.

1.

1.

1.

1.

1.

1.

^ t

±

s!

2.

*1.

5.

5.

li

75.4

2.51

0.591

0.66

150

Mean 31.6 Cfsm 7.44 In. 101. 04 Ac-ft 22, 900

Water year 1950-51: Max 550 Hln 0.7 Mean 29.0 Cfsm g.82 In. 92.68 Ac-ft 21,000

Peak discharge (base, 180 cfs). --Oct. 10 fll a.m.) 192 cfs (2.20 ft); Nov. 24 (2 a.m.) 182 cfs

(2.15 ft); Feb. 11 (time unknown) 830 ofs (4.00 ft).

'* Discharge measurement made on this day.

Note. No gage-height record Jan. 19 to Mar. 21; discharge estimated on basis of 2 discharge

measurements and records for stations on nearby streams.
DUWAMISH RIVER BASIN 109

Green River near Palmer, Wash.

Location. Lat 47°17'40", long. 121°49'20", In SW£NW£ sec. 20, T. 21 N., R. 8 E., on right 

bank 1-J miles upstream from diversion dam and Intake of Tacoma water-supply system, 

2f miles downstream from North Pork, and 4 miles southeast of Palmer.

Drainage area. 231 sq mi.

Records available. Oe tober 1931 to September 1951.

Gage. Water-stage recorder. Datum of gage is 912.6 ft above mean sea level (river-profile 

survey). Prior to Nov. 18, 1931, staff gage at same site at datum 3.91 ft lower.

Average discharge. 20 years, 1,074 cfs.

Extremes. Maximum discharge during year, 14,500 cfs Feb. 9 (gage height, 16.28 ft); minimum, 110 cfs Sept. 22, 23 (gage height, 3.60 ft).

1931-51: Maximum discharge, 23,200 cfs Dec. 11, 1946 (gage height, 19.95 ft); minimum, 81 cfs Sept. 4, 5, 1934.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No diversion or regulation.

Revisions (water years).--W 1062: 1932-34, 1935(M), 1938(M).

Rating tables, water year 1950-51 (gage height. In feet, and discharge, in

4.3 

4.5

4.7 

5.0 

5.3 

5.6

181

250

328

460

610

760

0

5

0

0

5

960

1,220

1,500

2,140

3,400

3

3

4

4

4

5

5

6

Oct.

6 110

8 155

0 215

3 315

6 420

0 580

5 780

0 980

Oct. 11 to Sept. 30

6.5 

7.0 

8.0 

9.0

10.0

11.0

13.0

15.0

1,220

1,490

2,140

2,930

3,920

5,100

8,000

11,800

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

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

23

29

30

31

Ibtal 

Mean

Cfsm

In.

Ac-ft

Oct.

243

225

207

218

336

402

420

540

610

3.350

2,430

1,460

1,070

960

860

760 

 740

840

1,000

1,000

920

840 

780

740

740

720 

900

1,070

1,240

1,190

1,120

27,911 

900

3.90

4.49

55,360

Nov.

1,240

1,550

2,070 

2,070

1,860

1,730

1,670

1,460

1,260

1,120

1,020

940

860

820

*780

780 

780

740

700

880

1,730

6.270 

5,040

a5, 800

a5, 000

a4,500 

a3,900

 3,200

2,670

2,280

-

64,720 

2,157

9.34

10.42

128,400

Dec.

1,930

1,610

1.430 

1,490

1,430

2,070

2,350

2,000

1,790

1,930

2,280

2,670

2,280

1,930

1,670

1,550 

1,670

1,610

1,520

1,610

2,070

2,460 

5,750

4,970

4,140

3,110 

2,590

2,350

2,210

2,140

2,000

70,610 

2,278

9.86

11.37

140,100

Jan.

1,930

2,750

3,020 

2,280

1,860

1,550

1,380

1,240

1,140

1,050

980

940

1,400

1,790

1,520

1,380 

1,380

 1,160

1,070

980

960

880 

840

1,290

2,510

3.810 

2,590

1,930

1,550

1,350

1,190

49,700 

1,603

6.94

8.00

98,580

Feb.

1,090

1,160

1,320

1,160

1,070

1,000

1,160

2,000

10,700

10,100

 11.000

6,710

4,030

2,930

2,350

1,930 

1,670

1,490

1,350

1,260

1,160

1,090 

1,050

980

940

880 

840

 780

.

-

-

73,200 

2,614

11.3

11.78

145,200

Mar.

760

720

720 

720

660

640

600

580

580

560

540

620

800

800

1,580

1.670 

,260

,090

,070

,140

,320

,260 

,120

,050

,090

,260 

,290

,220

,240

,240

,140

30,340 

979

4.24

4.88

60,180

Apr.

1,160

1,350

1,730 

2,210

2,210

2,000

2,140

1,930

1,730

1,610

1,610

2,000

 2,510

2.590

2,350

2,280 

2,430

2,280

2,000

1,670

1,400

1,240

1,140

1.090

1,120

1,160 

1,290

1,670

1,670

1,490

-

53,060 

1,769

7.66

8.54

105,200

May

,290

,160

,140 

,350

,860

,930

,930

,790

,670

,000

,56Q

, 110

,280

,860

,610

,610 

,930

,860

,550

,380

,350

,520

,860

 ,000

,070

,730 

,430

,290

,190

,090

980

53,380

7.45

8.59

105,900

June

940

940

940 

960

940

960

1.020

960

940

9ZO

920

900

880

860

860

820 

760

700

680

640

600

 560 

540

5ZO

500

468 

444

420

399

382

22 '?11

3.23

3.60

44,380

July

366

354

343 

336

326

322

308

287

280

270

252

239

233

230

227

221 

218

212

209

206

197

194 

191

188

188

 185 

182

179

176

173

170

7,464

1.04

1.20

14 , 800

Aug.

161

164

164

161

158

155

152

152

152

152

150

152

152

148

145

 142 

140

138

135

132

130

130 

130

130

128

128 

130

155

158

150

145

* !!!

0.632

0.73

8,980

Sept.

135

130

128 

126

124

 124

132

146

138

130

132

130

126

122

118

116 

116

116

114

114

11?-

Tlt 

112

116

176

167 

 135

155

179

560

-

*'S8

0.626

0.70

8,610

Calendar year 1950: Max 7,739 MIn 154 Mean 1,534 Cfsm 6.64 In. 90.16 Ac-ft 1,111,000

Water year 1950-51: Max 11,000 Min 112 Mean 1,265 Cfsm 5.48 In. 74.30 Ac-ft 915,700

records for nearby stations.
110 DWAMISH RIVER BASIN

Big Soos Creek near Auburn, Wash.

Location. Lat 47°19'00", long. 122°08'40", in SE* sec. 10, T. 21 N., R. 5 E., on right

 bank three-quarters of a mile downstream from Covlngton Creek and 4 miles northeast of 

Auburn. Prior to Aug. 14, 1951, at site 700 ft upstream.

Drainage area. 53.9 sq ml.

Records available. August 1944 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 150 ft (from topographic map). Prior to 

Aug. 14, 1951, at site 700 ft upstream at different datum.

Average discharge. 6 years (1944-50), 131 cfs.

Extremes. Maximum discharge observed during year, 1,570 cfs Feb. 10 (gage height, 5.57

 rfTTmlnlmum discharge, 22 cfs Aug. 21, 22, 23, 24, 25.

1944-51: Maximum discharge, that of Feb. 10, 1951; minimum, 22 eft- Aug. 30, Sept. 

9, Oct. 21, 1944, Aug. 21, 22, 23, 24, 25, 1951.

Remarks. 

 SeaTtle regulates flow of Little Soos Creek, a tributary.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

Ao-ft

Oct.

32

31

1!57

49

37

46

49

33.

76

49

42

41

39

36

37

46

60

SI

45 

, 44

44

42

54

68

70

82 

85

78

78

1,628 

52.5

0.974

1.12

3,230

Nov.

94

100

87 

82

76

75

75

71

68

66

£S

63

63

62

68

82

 89

87

82

100

ISO

173

196

281

288

260 551

351 

303

295

-

4,196 

140

2.60

2.90

8,320

Dee.

315

299

303 

327

303

371

423

415

375

359

347

335

307

292

284

284

281

264

253

 250

m395

155

153

383

363

347 

523

367

375

10,331 

333

6.18

7.13

20,490

Jan.

367

460

518. 

473

439

395

359

335

303

284

270

253

250

239

278

281

303

278

260

253

323 

565

327

335

347

367

331

288 

253

240

225

9,997 

322

5.97

6.90

19,830

Feb.

215

250

300 

300

290

270

330

 391

750

 1,560

_

_

_

_

-

.

_

_

.

-

-

_

_

-

.

_

-

-

;

_

_

-

Mar.

:

_

_

-

Apr.

-

^

w

-

May

-

_

_

-

June

-

^

_

-

July

-

_

_

-

Aug.

31

30

30 

29

28

27

26

25

24

24

24

26

25

24

24

24

24

24

23

 23

n23

22

23

24

26

fi

27

26

797 

25.7

0.477

0755

1,580

Sept.

26

26

25

 25

M

24

26

26

24

25

25

24

24

24

24

24

24

24

24

24

24 

24

24

24

29

26

26

28

31

il

-

775 

25.8

0.479

0.53

1,540

Calendar year 1950: Max 833 Mln 28 Mean 176 Cfsm 3.27 In. 44.24 Ac-ft 127,200

Water Water year year 1950-51: 1950-51; Max Max - - Mln Mln - - Mean Mean - -____Cfsm Cfsm . - In. In. . - Ac-ft Ac-ft .-______

Peak discharge (base. 40O cfs). Dee. 7 (11 P.m.) 445 cfs (5.45 ft); Dee. 24 (5 a.m.) 478 efs (3.45 

ft); Jan. 5 (2 a.m.) 560 cfs (3.53 ft)s Feb. 10 (about 4 p.m.) 1,570 cfs (5.57 f .).

 Discharge measurement made on this day.

Mote. No gage-height record Jan. 30 to Feb. 7, Feb. 9, Aug. l-13j discharge compute- ' 4 - ~* 

records for Stations on nearby streams. Qage washed out during flood of Feb. 10; rees 

14. No discharge record computed for period Feb. 11 to July 51.

computed on basis of 

itabllshed Aug.
DUWAMISH RIVER BASIN

Green River near Auburn, Wash.

Location. Lat 47°18'15", long. 122°12'10", in lot 3, sec. 17, T. 21 N., R. 5 E., on left 

bank l£ miles east of Auburn and 2 miles downstream from Big Soos Creek.

Drainage area. 386 sq mi.

Records available. August 1936 to September 1951.

Page. Water-stage recorder. Datum of gage is at mean sea level, datum of 1939. Prior

 to Oct. 19, 1936, staff gage at same site at datum 46.32 ft higher.

Average discharge. 15 years, 1,298 cfs.

Extremes. Maximum discharge during year, 18,400 cfs Feb. 10 (elevation, 67.03 ft); mini-

 mum, 93 cfs Sept. 22, 23 (elevation, 54.56 ft).

1936-51: Maximum discharge, 22,000 cfs Dec. 11, 1946 (elevation, 68.16 ft); minimum discharge, that of Sept. 22, 23, 1951; minimum elevation, 54.21 ft Sept. 1-3, 1945.

,rks. Records good except those for periods of no gage-height record, which are fair.

;y of Tacoma diverts about 108 cfs from river near Palmer, several miles above 

station for municipal use. No regulation.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1 to Nov.22)

5,800

7,250

8,830

12,400

16,500

54.5

54.7

54.9

55.1

55.4

55.7

75

140

224

324

505

730

56.0

56.5

57.0

57.5

58.0

59.0

990

1,480

2,030

2,620

3,220

4,460

60.0

61.0

62.0

64.0

66.0

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7 

8

9

10

11 

12

13

14 

15

16

17

18

19

20

21

22

23

24 

25

26 

27

28

29

30

31

Total

Mean

Ao-ft

OOt.

282

258

240

236

314

463

446

531

706

2,530

3.110 

1,720

1,240

1,050 

954

842

778

810

1,100

1,140

1,030

946

874

802 

794

842 

882

1,140

1,380

1,380

1,280

30,102

971

59,710

Nov.

1,280

1,720

1,970

2,180

2,020

1,820

1,820 

1,620

1,420

1,280

1,200 

1,070

988

938 

922

930

 970

946'

2,390

5,440

6,650

6.950 

6,080

5,660 

 5,110

4,330

3,460

2,980

-

75,981

2,533

150,700

Deo.

2,620

2,200

2,030

2,260

2,140

2,680

3.220 

2,800

2,440

2,380

 2,500 

3,220

2,920

2,440 

2,200

2,030

2,080

2,030

1.920

 1,980

2,440

2,620

6,350

6.360 

5,240

4,200 

3,460

3,100

2,920

a2,8OO

a2,700

90,280

2,912

179,100

Jan.

a2,600

a3,700

a4,200

a3, 500

3,040

2,560

2,260 

2,030

1,860

1,760

1,640 

1.480

TTsIS

2,380 

2,260

2,080

2,260

1,920

1,760

1,590

1,760

1,760

1,590

1,760 

3,040

4.720 

3,766

2,740

2,200

1,920

1,760

73,420

2,368

145,600

Feb.

1,590

1,760

2,200

1,980

1,760

1,640

1,860 

 2,560

10,700

 15.500

14,700 

11,800

6,950

4,980 

4,200

3,580

3,100

2,920

2,620

2,500

2,260

2,080

1,980

1,860 

1,810

1,700 

1,590

1.540

-

_

-

113,720

4,061

225,600

Mar.

1,430

1,380

1,330

1,380

1,330

1,230

1,180 

1,170

1,150

1,110

l.OBO 

1,430

1,760

1,640 

2,160

2.660

27140

1,860

1,760

1,760

1,920

 1,920

1,760

1,640 

1,590

1,760 

1,810

1,760

1,700

1,760

1,640

50,220

1,620

99,610

Apr.

1,590

1,700

1,980

2,440

2,560

2,380

2,440 

2,320

2,080

1,920

1,860 

2,030

2,620

2.800 

2,620

2,500

2,620

2,560

2,320

1,980

1,760

1,540

1,430

1,380 

1.350

 1,380 

1,430

1,810

1,860

1,760

-

61,000

2,033

121,000

May

1,590

1,430

1,380

1,430

1,920

2,080

2,080 

2,030

1,920

2,080

3,340

3.580

2,626

2,080 

1,810

1,700

1,920

1,980

1,700

1,540

1,480

1,540

1,810

1,980 

2,200

 1,860 

1,590

1,480

1,380

1,280

1.J70

57,980

1,870

115,000

June

1,090

1,060

1,060

1,090

1,080

1,080

1.120 

1,110

1,050

1,020

1,010 

1,010

990

963 

945

918

873

810

770

730

698

658

620

590 

575

547 

519

492

472

446.

25,396

847

50,370

July

121

428

416

404

404

398

386 

369

352

335

314 

308

303

293 

282

277

272

 262

248

238

229

224

220

220 

215

215 

211

202

198

189

189

9,035

291

17,920

Aug.

180

IS1

180

176

172

164

160 

156

156

160

160 

160

160

156 

148

144

140

140

136

133

133

126

122

116. 

116

116 

122

172

176

176

156

4,696

151

9,310

Sept.

14&

140

133

126

 119

116

119 

126

136

133

130 

122

116

108 

105

105

108

108

108

105

105

102

112

160 

172

160

184

56^

-

3,959

132

7,850

Calendar year 1950: Max 9,520 Mln 178 Mean i,9ie Ac-ft 1,389,000

Water year 1950-51: Max 15,500 Mln 95 Mean 1,632 Ao-ft 1,182,000

Peak discharge (base. 6.0OO cfs).--

7,700 cfs (61.30 ft); Feb. 10 (1 a.m

Nov. 23 (12:30 a.m.) 9.000 cfs (62.13 ft); Dec.. 23 (9 p.m.) 

) 18,400 cfs (67.02 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.
112 LAKE WASHINGTON BASIN

North Pork Cedar River near Lester, Wash.

Location. Lat 47°19'00", long. 121°29'30", in Sj sec. 11, T. 21 N., R. 10 E., on left bank at falls If " ' " " ...-.._. . _i .. 

of Lester.

~at falls If miles upstream from confluence with South Pork and 7f miles north

Drainage area. 8.8 sq mi, approximately.

Records available. October 1944 to September 1951.

Page.--Water-stage recorder. Altitude of gage is 2,420 ft (from topographic map).

Average discharge. 6 years (1945-51), 76.4 cfs.

Extremes. Maximum discharge during year, 1,200 cfs Peb. 9 (gage height, 7,60 ft), from 

rating curve extended above 300 cfs; minimum, 8.5 cfs Sept. 23, 24.

1944-51: Maximum discharge, 1,600 cfs Jan. 7, 1945 (gage height, 7.37 ft), from 

rating curve extended above 200 cfs: minimum. 8.2 cfs Oct. 18, 19, 1946 (gage height, 

1.53 ft).

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. No diversion or regulation.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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. 

Ac-ft

Oct.

23

22

21

23

35

4O

55

59

70 

 347

164

101

81

74

59

50

48 

64

78

 77

67

59

52 

48

51

46

64

64

67

64

61

2,134 

68.8 

7.82 

9.02 

4,230

Nov.

75

92

172

168

163

135

120

97

81 

69

60

51

46

 44

40

39

36 

32

30

31

61

134

131 

206

274

265

256

175

121

97

-

3,304 

110 

12.5 

13.96 

6,550

Dec.

8O

67

59

53

48

49

47

M

51 

59

93

105

 91

80

71

69

79 

77

79

96

150

249

494 

325

274

174

128

109

99

96

85

3,580 

115 

13.1 

15.13 

7,100

Jan.

77

75

73

62

55

50

46

44

40 

38

36

35

36

35

33

30

32 

30

28

26

26

25

M

72

110

87

67

60

52

47

1,489 

48.0 

5.45 

6.29 

2,950

Feb.

40

43

40

38

35

33

 40

69

830 

590

458

220

137

104

87

75

65 

57

52

48

46

42

40 

39

37

37

35

33

-

-

3,370 

120 

13.6 

14.24 

6,680

Mar.

32

31

30

29

28

27

26

25

24 

24

23

1§6^

25

40

37

35 

33

34

36

36

36

35 

34

35

36

36

36

37

36

35

979 

31.6 

3.59 

4.14 

1,940

Apr.

36

40

50

 70

81

83

91

86

79 

74

75

97

132

135

137

129

ft

114

92

82

74

71 

70

75

81

83

105

114

100

-

2,735 

91.2 

10.4 

11.56 

5,420

May

9O

80

75. it

140

145

155

140

200 

30O

400

335

240

170

150

190

 247 

192

155

148

167

247

325 

304

276

192

161

133

112

100

97

5,726 

185 

21.0 

24.20 

11,360

June

101

113

131

132

118

135

154

144

143 

150

152

161

153

197

206

166

143 

131

122

113

 109

102

99 

92

se

81

73

72

69

65

3,715 

124 

14.1 

15.70 

7.370

Jvly

"5§ 62

58

55

50

51

49

46

44

41

37

35

33

31

29

27

26 

25

24

22

21

20

19ia

17

16.5

 16.5

16

16

15

T5

9f4.0 

32.1 

3.65

1.970

Aug.

14.5

14.5

14

14

13.5

13.5

13.5

13

13 

 12.5

12.5

13

12.5

12

12

12

12 

11.5

11.5

11

11

U

11

15^5

10.5

10.5

15.5

12.5

 12

11

382.0 

12.3 

1.40 

1.61 

758

Sept.

11

11

11

10

9

9

11

12

10 

10

9.8

9.8

9.6

9.4

9.3

9.3

9.1 

9.1

 9.1

8.8

- j

**7

M13.5

 10

9.3

11

16

53

345.0 

11.5 

1.31 

1.46 

684

Calendar year 1950: Max 494 Mln 13 Mean 90.0 Cfsm 10.3 In. 140. 26 Ac-ft 65,820

Water year 1950-51: Max 830 Mln 8.5 Mean 78.8 Cfsm 8.95 In. 121. 51 Ac-ft 57,010

Iseharae (base. 400 ef a). Oct. 10 (12 m.) 515 cfs (6.20 ft); Dec. 23 (3:30 p.m.) 725 cfs 

); Peb. 9 (4 p.m.) 1,200 cfs (7.60 ft); probably May 11 (time unknown) f20 cfs (6.14 ft).

.

(6.56 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Jan. 29 to Feb. 6, Mar. 1-14, 17-19, Apr. 30 to *>y 16, Aug. 31 to 

Sept. 10; discharge estimated on basis of records for stations on nearby streams. Shifting-control 

method used Oct. 1 to Jan. 14, Jan. 24-28, Feb. 8-28, Mar. 15, 16, Mar. 20 to Apr. 29, May 17 to 

July 6, Sept. 30.
LAKE WASHINGTON BASIN 113

South Fork Cedar River near Leater, Wash.

Location. Lat 47e 18'30", long. I21e31'00", in SW$NE£ (revised) sec. 15, T. 21 K., R. 10 

 E., on left bank half a mile (revised) upstream from mouth and 7 miles nortl^est of 

Lester.

Drainage area. 6.0 sq mi, approximately.

Records available. October 1944 to September 1951.

Gage.--Water-stage recorder. Concrete control since Aug. 31, 1951. Altitude of gage is 

~<7,300 ft (from topographic map).

Average discharge. 6 years (1945-51), 44.4 cfs.

Extremes. Maximum discharge during year, 664 cfs Feb. 9 (gage height, 6.07 ft), from 

rating curve extended above 190 cfs; minimum, 2.6 cfs Sept. 23, 24.

1944-51: Maximum discharge, 878 cfs Jan. 7, 1945 (gage height, 4.86 ft), from 

rating curve extended above 125 cfs; maximum gage height,.that of Feb. 9, 1951; minimum, that of Sept. 23, 24, 1951.

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. No diversion or regulation.

Rating tables, water year 19SO-51, except periods of shifting control (gage height. 

In feet, and discharge, In cubic feet per second)

Oct. 1-9

2.8 6.7

3.O 1O.5

3.2 16

3.4 24

2.7 2.9

2.9 6.4

3.0 S.9

3.2 16

Oct. 10 to Aug. 31

3.4 27

3.7 51

4.O 84

4.3 126

4.6 176

4.9 244

5.2 328

5.6 466

Aug. 31 to sept. SO

2.6 2.1

2.9 4.2

3.1 11

3.3 23

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

iJL

8.1

8.1

6.1

11.1

14.6

16.7

19.5

23

204

124

76

55

46

36

31

28

31

34

 35

34

32

33

27

27

27

33

36

40

40

36

1,164.3

36.2

6.37

7.34

2,350

Nov.

50

64

103

110

103

87

77

65

54

46

39

33

29

 26

23

.21

16.5

16

15

1?

31

145

139 

160

13&

166

163

122

66

65

-

2,312.5

77.1

12.6

14.33

4,590

Dec.

50

40

34

29

25

26

24

23

26

26

46

71

 65

55

46

42

44

44

46

57

94

161 m190

134

96

77

66

63

56

2,381

76.8

12.6

14.76

4,720

Jan.

51

50

46

40

33

30

27

22

22

19.5

17.5

16.5

17.5

17

15

14.5

15

15

12

11

13

13

1;! 

19

40

53

a45

a38

a33

914.0

29.5

4.92

5.67

1,810

Feb.

a27

a3O

24

21

18.5

11 20

47

461

350

313

167

111

78

61

50

43

36

34

30

26

25

23 

22

20

19

18

17

-

-

-

2,112.5

75.4

12.6

13.09

4,19O

Mar.

16.5

15.5

15

15

14.5

13

13

13

12.5

11.5

11.5

11

11.5

11

20

19

19

19

19

16.5

16.5

19

16.5 

16.5

18.5

18.5

19

19

19

19

18.5

505. 0

16.3

2.72

3.13

1,000

Apr.

19

19.5

23

 34

42

45

49

51

49

45

43

52

79

69

87

89

98

96

60

66

55

49

44

42

41

42

51

71

76

66

"

1,692.5

56.4

9.40

10.49

3,360

May

56

50

49

63

100

105

107

97

96

140

252

163

114

9O

83

*94

117

105

87

78

63

108

126 

131

132

104

65

73

62

54

48

3,056

96.6

16.4

18.94

6,060

June

46

46

53

54

50

51

51

55

55

56

56

53

51

53

55

49

44

40

36

36

 35

33

32

29

27

26

23

23

22

|0

1,269

42.3

7.05

7.87

2,520

July

12.

17.5

16.5

15

14.5

14

12.5

11.5

11.5

11

10.5

9.8

9.2

8.9

6.6

8.4

7.9

7.6

7.4

7.2

6.9

6.6

6.6 

6.4

5.9

5.5

 5.5

5.5

5.3

5.3

sa

293.1

9.45

1.58

1.62

581

A',«.

"5-tl

4.9

4.9

4.7

4.7

4.7

4.6

4.6

4.6

 4.2

4.2

4.2

4.2

 4.1

4.O

4.0

4.1

4.1

4.1

4.0

4.0

4.0

4.O 

3.8

3^6

3.6

3.6

5.1

4.2

 4.0

 3.7

131.6

4.25

0.708

0.82

261

Sept.

3.7

3.7

3.7

3.7

3.4

3.4

4.2

4.4

3.4

3.4

3.4

3.2

3.0

2.8

2.6

2.6

2.6

3.O

 2.8

2.6

2.6

2.6

2t§

5.2

3.2

2.6

3.2

5.2

18

-

114.8

3.83

0.638

0.71

226

Calendar year 195O: Max 37O Mln 6.2 Mean 54.7 Cfsm 9.12 In. 123.64 Ac-ft 39,630

Water year 1950-51: Max 461 Mln 2.6 Mean 43.7 Cfsm 7.28 In. 98.97 Ac-ft 31,670

Peak discharge (base. 200 cfs). Oct. 1O (10:3O a.m.) 281 cfs (5.O4 ft); Nov. 25 (9 p.m.) 227 cfs 

4.89 ft); Dec. 23 (1:3O P.m.) 441 cfs (5.53 ft)j Feb. 9 (1:3O p.m.) 664 cfs (6.07 ft); May 11 

(9 a.m.) 284 cfs (5.O7 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.

Note. Shifting-control method used Nov. 27 to Dec. 22, Aug. 20-31.
114 LAKE WASHINGTON BASIN

Cedar River below Bear Creek, near Cedar Palls, Mash.

Location. Lat 47'20'40", long. 121°33'00", in SE&SEi sec. 32, T. 22 N., R. 10 E., on

 right bank 500 ft downstream from Bear Creek and 12 miles southeast of Cedar Falls.

Drainage area. 25.4 sq ml.

Records available. October 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,880 ft (from topographic map).

Average discharge. 6 years, 190 cfs.

Extremes. Maximum discharge during year, 1,800 cfs Feb. 9 (gage height, 6.30 ft); mlnl-

 mum, 18 ofs Sept. 20-24 (gage height, 2.68 ft). .

1945-51: Maximum discharge, 1,940 ofs Dec. 11, 1946 (gage height, 6.32 ft); minimum, that of Sept. 20-24, 1951.

Remarks. Records good. No diversion or regulation.

Rating tables, water year 1950-51 (gage height. In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 9 Feb. 1O to Sept. 3O

2.9 

3.1 

3.3 

3.5 

3.7 

4.0

37

59

89

129

185

282

4.3

4.6 

5.0 

5.4 

5.9

393

523

740

1,010

1,420

2.6 

2.8 

3.0 

3.2 

3.5 

3.3

13.5

26

44

70

126

207

4.1 

4.5 

5.0 

5.5 

6.0

312

477

740

1,090

1,510

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

45

43

41

43

59

73

86

102

 116

761

422

265

197

173

142

118

111 

139

 167

161

147

129

118

109

114

103

147

158

161

158

145

4,753

153

6.02

6.96

9,430

Nov.

194

238

377

381

377

328

310

255

212

176

155

134

 120

111

105

100

94

86

81

94

218

500

468

630

711

680

646

486

350

282

"

8,906

297

11.7

13.04

17,660

Dec.

21S

182

152

134

118

120

120

m

129

145

228

275

248

 212

182

179

200 

194

209

251

366

491

1.010

842

698

477

362

317

282

268

235

8,955

289

11.4

13.11

17,760

Jan.

218

248

248

200

170

152

137

122

114

107

102

98

111

116

103

102

98 

93

89

87

94

83

73

116

209

3TO

268

209

185

155

142

4,624

149

5.87

6.77

9,170

Feb.

127

132

122

111

105

98

 111

215

1.370

1,290

1,250

746

491

368

285

233

204

181

167

156

146

136

128

120

113

107

101

21

-

-

8,710

311

12.2

12.75

17,280

Mar.

96

92

92

90

86

83

80

76

73

73

67

f?

75

72 lie

111

101 

97

99

103

107

105

101

99

103

111

113

111

120

116

111

2,952

95.2

3.75

4.32

5,860

Apr.

U6its

154

 210

239

239

264

253

239

226

226

293

396

4E1

396

405

tt

368

293

242

213

198

195

198

210

242

32O

320

278

-

8,142

271

10.7

11.92

16,150

May

236

213

202

^67

396

417

426

392

409

557

905

Its

464

388

356

417

 509 

456

384

352

368

477

557

562

543

434

376

324

274

236

220

12,757

412

16.2

18.68

25,300

June

220

236

270

278

253

270

308

289

285

293

301

2S5

282

312

324

274

242 

226

217

201

 198

190

184

173

164

156

148

144

136

128

6,987

233

9.17

10.23

13,860

July

US

109

103

94

84

83

75

72

70

66

62

60

57

55

51

49

48 

45

42

41

40

39

38

38

37

35

*33

32

11

31

31

1,769

57.1

2.25

2.59

3,510

Aug.

31

30

29

29

28

28

27

27

 27

26

26

26

26

26

25

24

24 

24

23

23

23

22

22

22

22

21

22

24

 23

787

25.4

1.00

1.15

1,560

Sept.

22

22

22

20

20

19.5

23

24

21

21

21

19.5

19

19

18.5

18.5

18.5 

19

 19

li

18

18

18

18

31

23

19.5

24

28

99.

701.0

23.4

0.921

1.03

1,390

Calendar year 1950: Max 1,O10 Mln 32 Mean 226 Cfsm 8.9O In. 120.8? Ac-ft 163,600

Water year 195O-51: Max 1,370 Mln 18 Mean 192 Cfsm 7.56 In. 102. 5f Ac-ft 138,900

Peak discharge (base. 1.000 efs). Oct. 10 (11:3O a.m.) 1.O1O cfs (5.38 ft)-j Dec. 23 (2 p.m.) 

1,17O cfs (5.63 ft); Feb. 9 (6 p.m.) 1,800 " cfs ' (6.30 .--_-.. ft). 

* Discharge measurement made on this day.
CEDAR RIVER BASIN 115

Cedar River near Cedar Falls, Wash.

Location. La t 47°22'20", long. 121°37'30", in SEfcSWfc sec. 23, T. 22 N., R. 9 E., on left 

bank 2 miles upstream from Cedar Lake and 8 miles southeast of Cedar Falls.

Drainage area. 41.8 sq mi.

Records available. --October 1945 to September 1951.

Gage. Water -stage recorder. Altitude of gage is about 1,560 ft (from topographic map).

Average discharge. 6 years, 304 cfs.

Extremes . --Maximum discharge during year not determined, probably occurred soiretlme Feb. 

9-11 (gage height, 9.94 ft, from high-water mark In well, backwater from Certar Lake); 

minimum, 26 cfs Sept. 21-23 (gage height, 2.15 ft).

1945-51: Maximum discharge, that which occurred sometime during period Feb. 9-11, 

1951; minimum, that of Sept. 21-23, 1951.

Remarks . Records good except those for periods of backwater or no gage-height record, 

which are fair. No diversion or regulation.

Rating tables, water year 1950-51, except periods of backwater (gage height,

In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 5-20, Jan. 10 to Feb. 6)

2.2 

2.4 

2.7 

3.0 

3.3

Oct. 1 to Feb. 9

55

83

142

220

313

3.6 

4.0 

4.5 

5.0 

5.5

415

570

790

1,040

1,300

2.1 

2.4 

2.7 

3.0 

3.3 

3.6

Feb. 10 to Sept. 30

51

92

144

210

288

4.0 

4.5 

5.0 

5.5 

6.0

4FO

6f5

8FO

l.lfO

1,540

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7 

'9S

10

11 

12

13

14

15

16

17

18

19 

20

21

22

23 

24

25

26

27

28

29

30

31

 fetal

Mean

Cfsm

In.

Ac-ft

Oct.

76 

70

67

75

97

131

144 

179

 214

*1.170

771 

429

333

307

269

235

220

269

*323 

316

291

269

241 

223

229

212

278

303

316

307

284

8,643

279

6.67

7.69

17,140

Nov.

349 

415

590

590

570

474

454 

384

320

281

250 

229

*209

195

184

184

176

161 m

408

840

768 

1,060

1.140

1,100

1,080

800

600

470

"

14,612

487

11.7

13.00

28,980

Dec.

390 

320

270

240

212

241

300 

307

281

281

360 

470

443

*370

330

307

356

356

336 

380

600

900

1.800 

1,500

1,100

900

700

620

560

500

470

16,200

523

12.5

14.41

32,130

Jan.

450 

490

530

450

390

340

300 

260

235

217

192 

182

223

253

235

214

206

184

171 

161

159

149

138

We

366

'515 696

418

353

281

238

9,205

297

7.11

8.19

18,260

Feb.

220 

244

250

226

212

 192

223 

404

32.600

32,400

a2,500 

al,750

31,350

al.100

3890

720

600

520

450 

390

350

306

263 

232

212

194

178

172

-

-

19,148

684

16.4

17.04

37,980

Mar.

165 

157

150

152

144

138

134 

129

127

122

iff

146

138

250

244

222

210

208 

217

232

227

212 

203

208

224

229

227

232

232

220

5,739

185

4.43

5.11

11,380

Apr.

*268 m

340

360

357

377 

360

334

315

315 

384

480

457

457

491

484

427 

367

321

285

271 

263

*280

306

340

442

446

395

-

10,869

362

8.66

9.67

21,560

May

344 

309

300

357

499

527

544 

499

491

670

1.330 

926

625

491

442

*511

648

576

476 

438

457

580

720 

745

695

544

472

420

357

315

288

16,590

535

12.8

14.76

32,910

June

268 

303

334

337

315

334

365

353

353

357 

344

337

360

374

331

300

280

266 

250

*242

232

224 

212

203

192

183

174

163

157

8,542

285

6.82

7.60

16,940

July

148 

136

131

122

115

110

102 

97

92

86

82 

77

76

74

73

69

67

64

62 

61

58

56

55 

53

52

52

*51

51

49

49

M

2,418

78.0

1.87

2.15

4,800

Aug.

47 

45

45

44

43

43

42 

40 *40

40

40 

42

40

38

38

38

38

36

36 

14

34

34

34 

34

34

34

34

50

45

44

*38

1,227

39.6

0.947

1.09

2,430

Sept.

34 

34

32

32

30

30

34 

42

34

32

32 

3O

30

28

.27

27

27

*27

28 

2S

27

27

27 

28

47

40

32

42

50

161

1,105

36.8

0.880

0.98

2,190

Calendar year 1950 : Max 1,8OO Mln 48 Mean 365 Cfsm 8.73 In. 118.48 Ac-ft 264,100

Water year 1950-51 : Max 2,600 Mln 27 Mean 313 Cfsm 7.49 In. 101.69 Ac-ft 226,700

Peak discharge (base. 1,000 cfs). Oct. 10 (1 p.m.) 1,720 cfs (6.20 ft)} probably Nov. 25 (time 

and discharge unknown); probably Dec. 23 (time and discharge unknown); sometime Feb. 9-11 (time and 

discharge unknown); May 11 (9:30 a.m.) 1,500 cfs (5.94 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station below Bear Creek near 

Cedar Falls.

Note. Backwater from Cedar Lake Nov. 25 to Dec. 4, Dec. 21 to Jan. 9, Feb. 16-21.
116 LAKE WASHINGTON BASIN

Rex River near Cedar1 Falls, Wash.

Location. la t 47°21'10", long. 121°39'50", in NEjNW£ sec. 33, T. 22 N., R. 9 E., on 

right bank 2f miles upstream from mouth and Cedar Lake and 7 miles southeast of Cedar 

Falls.

Drainage area. 13.0 sq mi.

Records available. October 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is about 1,600 ft (from topographic map).

Average discharge. 6 years, 110 cfs.

Extremes . Maximum discharge during year, 1,480 cfs Feb. 11 (gage height, 6.27 ft), from 

rating curve extended above 680 cfs; minimum, 5.8 cfs Sept. 23, 24 (ga.^e height, 2.48 

ft).

1945-51: Maximum discharge recorded, that of Feb. 11, 1951; miniman discharge, 

that of Sept. 23, 24, 1951.

ks . Records good except those above 1,000 cfs, which are fair, and those for periods 

no gage-height record, which are poor. No diversion or regulation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge., In cubic feet per second) 

(Shifting-control method used Oct. 10, 11)

2.4 

2.6 

2.8 

3.0 

3.2

4.5

8.6

16.5

31

52

3.4 

3.6 

3.8 

4.0 

4.3

83

123

173

231

333

4.7 

5.2 

5.5 

6.0

501

756

930

1,260

Discharge, In cubic feet per second, water year October 195O to Septemter 1951

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

Obtal

Mean

Cfsm

In.

Ac-ft

Oct.

38

33

30 

35

83

102

1O6

152

142

*695

322

181

119

115

87

76

71

119

145

 133

1O8 

89

78

69

73

66

96

121

125

119

100

3,828

123

9.46

10.95

7,590

Nov.

187

207

273 

222

216

201

187

145

115

94

80

68

60

*55

50

51

46

42

38

6.6

213 

192

356

478

380

3O8

322

241

184

140

-

5,517

184

14.2

15.78

10,940

Dec.

110

89

102

106

198

219

165

157

163

222

237

181

 142

135

137

190

168

160

187

213 

344 .544

37?

304

204

173

179

173

155

125

5,917

191

14.7

16.93

11,740

Jan.

112

173

179 

121

94

80

68

59

53

50

46

44

81

96

87

74

66

58

50

46

48

41

19

12?

273

356

602

142

115

102

85

3,569

115

8.85

10.21

7,080

Feb.

74

91

83 

73

65

60

121

 304

1.260

756

970

384

234

163

123

100

83

74

66

60

53

51

49

45

42

40

4O

.38

-

-

5,502

196

15.1

15.74

10,910

Mar.

34

31

31 

32

3O

28

28

25

24

25

23

31

59

48

128

110

81

71

a75

aSO

a85 

a75

a70

a65

a68

a72

a75

a78

880

a72

868

1,802

58.1

4.47

5.16

3,570

Apr.

aSO

alOO

 130 

140

130

128

130

121

110

102

110

155

193

184

173

184

198

T5T

155

128

108 

94

89

87

 91

98

130

198

165

133

-

4,025

134

10.3

11.51

7,980

May

110

102

106 

147

167

187

181

165

173

241

413

183

204

160

147

*173

198

168

142

135

152 

198

253

280

244

187

157

133

115

100

ii

5,535

179

13.8

15.83

10,980

June

94

100

108 

102

92

112

125

156

104

104

100

96

96

1O2

94

85

76

69

63

59

 56 

51

49

44

41

38

35

33

30

28

2,292

76.4

5.88

6.56

4,550

July

26

24

22 

22

21

19.5

18 5

17

16 5

15

14

13

13

12.5

12,5

12.5

12

11.5

11

11

11 

10.5

10

10

.9.8

9.8

*9.5

9.5

8.9

8.9

1,6

431.0

13.9

1.07

1.23

855

Aug.

8.3

8.0

8.0 

7.8

7.5

7.3

7.1

7.1

6.8

 6.8

6.8

7.5

7.1

6.8

6.8

6.6

6.6

6.4

6.4

6.2

f*

6.0

6.O

6.2

6.2

6.4

~9.2 15

8.9

7.5

225.3

7.27

O.559

0.64

447

Sept.

7.1

6.8

6.6 

6.6

6.4

6.4

8.0

10

7.5

8.9

8.6

7.3

6.6

6.6

6.4

6.4

6.2

6.2

*6.2

6.2

*86.0

6.4

33

11

8.9

20

29

115

362.5

12.8

0.985

1.09

759

Calendar year 1950 : Max 695 Mln n Mean 131 Cfsm 10.1 In. 137.23 Ac-ft 95,140

Water year 1950-51 : Max 1,260 Mln 6.0 Mean 107 Cfsm 8.23 In. 111.63 Ao-ft 77,400

Peak discharge (base. 700 efs). Oct. 10 {8:30 a.m.) 990 efs (5.43 ft)j Dec. 23 (11:30 a.m.) 756 

efs (5.22 ft)j Feb. 11 (7 a.m.) 1,480 efs (6.27 ft).

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of recorded range In stage and records for 

stations on nearby streams.
LAKE WASHINGTON BASIN 117

Cedar River at Cedar Falls, Wash.

Location.--Lat 47°25'10", long. 121°47'20", in sec. 4, T. 22 N., R. 8 E., on right bank 

three-quarters of a mile downstream from Seattle municipal povrerplant at Csdar Palls 

and 3 miles downstream from Cedar Lake.

Drainage area. .84.2 sq mi (revised).

Records available. April 1914 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 910 ft (from topographic mac).

Average discharge.--37 years, 299 cfs.

Extremes.--Maximum discharge during year, 3,860 cfs Feb. 11 (gage height, 10.86 ft); 

minimum, 28 cfs Aug. 18 (gage height, 5.06 ft).

1914-51: Maximum discharge, 6,290 cfs Dec. 19, 1917; maximum gage height, 11.5 

ft Dec. 22, 1933; no flow part of Nov. 25, 1917, Aug. 18, 1923; minimum daily, 2 cfs 

Sept. 20, 1922.

Remarks.--Records excellent except those for periods of no gage-height record, which are 

poor. All artificially diverted water returned to river above station. Some regulation by Cedar Lake Reservoir for power.

Cooperation. Gage-height record collected in cooperation with city of Seattle. 

Revisions (water years).--W 722: 1930.

Rating tables, water year 1950-51 (gage height. In feet, and discharge, 

In cubic feet per second]

Oct. 1 to Feb. 1O Feb. 11 to Sept. 30

5.2 

5.4 

5.7 

6.0 

6.5

64

100

170

270

505

7.0 

7.5 

8.0 

8.5 

9.5

810

1,160

1,560

1,990

2,930

5.1 

5.4 

5.7 

6.0 

6.5 

7.0

31

64

115

187

360

620

7.5 

8.0 

8.5 

9.0 

9.5 

10.5

940

1,290

1,680

2,090

2,540

3,500

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

AC- ft

Oct.

67

155

158

148

180

182

67

77

199

160

140 

116

118

98

82

208

128

134

146

137

94

80

160

148

145

154 

217

*121

90

322

555

4,434

143

8,790

Nov.

219

190

150

135

296

369

248

249

 160

166

156"

354

278

406

304

274

159

212

318

218

319

144

274

438

966 

956

948

989

1.040

-

11,097

370

22,010

Dec.

790

554

422

628

572

485

511

552

546

464

588 

498

*562

616

516

418

389

596

498

468

506

590

962

1,350

1,440

1.500 l.Sflo

1,130

990

865

748

22,134

714

43,900

Jan.

692

8900

a955

a800

763

568

463

586

506

390

299 

335

186

221

a400

8380

*a350

365

349

224

134

455

396

280

277

313 

449

314

600

522

510

13,874

448

27,520

Feb.

461

320

152

96

255

282

232

202

1,190

2,930

*f^ffi

2^370

1,850

1,520

1,260

902

716

849

602

512

302

457

358

304

519 

547

562

-

-

-

26,293

939

52,150

Mar.

599

578

282

445

648

677

677

672

750

751

533 

637

596

575

*619

643

618

557

554

558

561

544

556

453

443

552 

556

570

570

559

511

17,796

574

35,300

Apr.

505

544

293

480

451

a370

8230

a!60

a370

304

268 

140

384

69

79

267

407

447

*423

428

65

71

368

262

305

278 

427

457

264

365

9,481

316

18,810

May

306

393

446

518

194

398

492

487

485

489

501 

286

85

478

301

335

£3

132

79

77

305

297

216

376

294

96 

277

541

453

350

551

10,301

332

20,430

June

 544

361

438

440

484

506

446

418

95

122

394 

275

280

323

231

202

181

a375

a290

8330

8300

8290

8160

8160

a350

a340 

a230

150

150

152

9,017

301

17,880

July

265

495

450

186

315

364

181

147

413

520

433 

358

406

350

185

422

317

355

407

459

148

144

394

254

*250

204 

134

132

128

211

206

9,233

298

18,310

Aug.

156

195

T28

110

107

133

144

140

143

122

101 

102

135

101

97

100

130

66

66

123

114

131

122

106

35

35 

94

110

80

*82

59

3,367

109

6,680

Sept.

35

35

35

38

37

37

36

34

H

82 

63

65

80

33

33

80

59

82

70

80

35

36

70

72

67 

64

45

35

46

1,598

53.3

3,170

Calendar year 1950: Max 1,660 Mln 54 Mean 456 Ac-ft 329,900

Water year 1950-51: Max 3,430 Mln ZZ Mean 380 Ae-ft 275,000

* Discharge measurement made on this day.

a No gage-height reoordj discharge estimated on basis of 2 discharge measurements and records for 

nearby stations.
118 LAKE WASHINGTON BASIN

Cedar River near Landsberg, Wash.

Location. Lat 47°23'35", long. lai-SG'SO", In sec. 17, T. 22 N., R. 7 E., on left bank 

If miles upstream from Landsberg and intake of Seattle water-supply system, 7 miles 

upstream from Maple Valley, and 12 miles downstream from Cedar Lake.

Drainage area. 125 sq mi, excludes that of Rock Creek (revised).

Records available.--July 1895 to April 1912 (monthly figures only October 1898 to Mar. 

1901 in W.S.P. 492), April 1914 to September 1951. Published as "at Clifford Bridge, 

near Ravensdale" July 1895 to September 1898 and as "near Ravensdale" March 1901 to 

April 1912.

Gage.--Water-stage recorder. Altitude of gage is 580 ft (from topographic map). Prior 

to Oct. 1, 1898, staff gage at site 2 miles downstream at different datum. Mar. 24, 

1901, to Apr. 30, 1912, staff gage at site 1? miles downstream at different datum. 

Apr. 30, 1914, to Oct. 22, 1928, water-stage recorder a quarter of a irile downstream 

at different datum.

Average discharge. 53 years (1895-1911, 1914-51), 694 cfs (adjusted for Rock Creek dlversion April to September 1932, October 1934 to September 1948).

Extremes. Maximum discharge during year, 6,200 cfs Feb. 11 (gage height, 6.94 ft); minimum, 203 cfs Sept. 26, 27 (gage height, 0.88 ft).

1895-98, 1901-12, 1914-51: Maximum discharge observed, 13,600 cfs Nov. 19, 1911 

(gage height, 9.7 ft, site and datum then in use): minimum observed, 63 cfs Sept. 19, 

1898.

Remarks.--Records excellent. All diversions except Rock Creek returned to river above 

station. Rock Creek which entered naturally Just above gage has been diverted to a 

point downstream from Seattle municipal water-supply intake to lessen danger of pollution. Some regulation by Cedar Lake.

Cooperation. -Gage-height record collected in cooperation with city of Seattle. 

Revisions (water years). W 313: 1895-98, 1902-9.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.8 

1.0 

1.2 

1.4 

1.6 

1.8 

2.0

179

243

320

412

516

625

740

2.3

2.6 

3.0 

3.5 

4.0 

5.0 

6.5

940

1,160

1,480

1,930

2,430

3,560

5,540

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

330

455 

408

404

473

466

344

378

508

754

613

486

436

423

382

493

408 

450

530

548

450

406

476

453

460

480

532

508

460

668

575

14,760

476

29,280

Nov.

630

650 

636

568

750

790

682

646

 566

560

508

1>46

707

642

766

686

656 

528

562

738

802

986

800

1,190

1,150

1,510

1,580

1,530

1,550

1.600

-

25,515

850

50,610

Dec.

1,380

1,100 

991

1,190

1,140

1,200

1,210

1,180

1,160

1,040

1,170

1,060

 1,090

1,140

1,030

938

1,155

1,030

1,010

1,030

1,130

1,650

2,050

2.120

2,080

1,980

1,740

1,580

1,470

1,330

40,271

1,299

79,880

Jan.

1,320

1,810 

1,780

1,630

1,450

1,210

1,050

1,190

1,070

946

832

866

783

816

liOSO

1,040

 936 

924

884

756

690

3f5

913

953

1,100

1,160

1,100

961

1,180

1,100

1,050

33,470

1,080

66,390

Feb.

999

902 

716

628

157

802

864

978

3,080

4,600

«5.450

4,750

3,710

2,880

2,430

2,100

1,650 

1,410

1,530

1,290

1,160

914

1,040

934

884

1,030

1,020

1,080

.

-

-

49,638

1,773

98,460

Mar.

1,100

1,080 

842

55T

1,090

1,150

1,140

1,130

1,180

1,170

984

1,120

1,110

1,070

«1.2SO

1,220

1,140 

1,040

1,050

1,070

1,080

1,060

1,050

946

975

1,030

1,040

1,060

1,060

1,040

991

33,222

1,072

65,890

Apr.

965

"555 980 

886

918

810

721

605

780

763

717

600

762

540

492

660

770 

844

808

 836

487

438

715

650

678

646

737

857

620

762

-

21,882

729

43,400

May

684

746 

781

842

638

684

834

860

828

838

"654 968

504

794

690

688

432

478

421

402

634

624

574

691

674

416

608

830

810

672

818

21,157

682

41,960

June

 886

735 

738

790

808

834

790

774

430

418

730

612

629

646

554

528

496 

668

610

638

576

596

450

436

634

646

532

435

427

426

-

18,472

616

36,640

July

554

736 

736

549

598

669

494

424

675

758

Hi

^52

678 eis

516

eee

eog 

ess

F77

742

452

411

£36

*S85

514

469

398

3«9

1±4

4*f

4<58

17,942

579

35,590

Aug.

415

383

360

352

385

392

390

393

377

348

352

389

346

327

344

364 

300

289

350

339

357

342

269

252

252

313

329

304

 305

278

10,646

343

21,120

Sept.

252

242 

240

240

238

238

236

232

228

278

278

250

254

260

218

211

258 

237

260

238

254

210

"542" 208

253

238

232

220

210

286

7,241

241

14,360

Calendar year 1950: Max 2,660 Mln 317 Mean 906 Ao-ft 656,200

Water year 1950-51: Max 5,450 Mln 208 Mean 806 Ao-ft 583,600

 Discharge measurement made on this day.
LAKE WASHINGTON BASIN 119

Rock Creek near Maple Valley, Wash.

Location. Lat 47°22'50", long. 122°01'00", in NE£ sec. 22, T. 22 N., R. 6 E., on right 

bank at mouth 2 miles southeast of Maple Valley.

Drainage area.--14.0 sq mi (revised).

Records available. June 1945 to September 1951.

Gage. Water-stage recorder and wood box culvert control. Altitude of gage is 425 ft 

(from topographic map).

Average discharge. 6 years, 24.8 cfs

Extremes. Maximum discharge during year, 165 cfs Feb. 11 (gage height, 4.26 ft. from 

recorded range in stage); minimum, 4.8 cfs Sept. 16-20 (gage height, 0.22 ft).

1945-51: Maximum discharge, that of Feb. 11, 1951; minimum, 3.1 cfs 0;t. 11, 

12, 13, 1947 (gage height, 0.29 ft).

Remarks. Records good except those for periods of shifting control, which an fair, 

and those for periods of no gage-height record, which are poor. No diversion or 

regulation.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

0.2 

.5

5.0

14.5

31

55

2.2 

3.0 

4.2

S3 

115 

163

Discharge, In cubic feet per second, water year October 1950 to September 19~\

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.

Ac-ft

Oct.

7.5 

*6.9

6.9

7.2

8.1

6.9

6.9

7.5

7:5

1,8

7.5

7.5

7.5

7.2

6.9

64

S7f

6.9

7.5

6.9

6.6

6.6

6.9

6.9

7.2

7.2

8.1

8.8 

8.8 

9.1

9.4

231.9

7.48

0.534

0.62

460

Nov.

*nm

11.5

11.5

11.5

11.5

12

11.5

11

11.5

11.5

11.5

11.5

12

12

12

12

12

12.5

13.5

15

16.5

20

24

26

31

35 

38 

40

490.0

16.3

1.16

1.30

972

Dec.

41 

42

43

45

45

47

51

53

52

51

49

 47

45

44

42

41

41

39

39

37

37

37

41

49

56

56

55

53 

51 

52

52

1,433

46.2

3.30

3.81

2,840

Jan.

55 

63

72

li

77

73

70

67

63

60

57

55

53

51

51

51

51

51

51

51

52

52

*53

55

59

64

66

64 

61 

58

56

1,840

59.4

4.24

4.89

3,650

Feb.

52 

51

«5

58

56

55

70

105

150

140

T56" 160

110

100

95

90

88

86

83

80

76

72

69

66

64

62

59

57

-

2,344

83.7

5.98

6.23

4,650

Mar.

55 

52

51

52

48

47

45

44

42

41

40

 42

43

46

51

55

56

54

53

51

49

47

45

44

43

41

40

39 

38 

38

12

1,429

46.1

3.29

3.80

2,830

Apr.

||

34

33

32

31

31

31

29

28

28

28

27

26

26

24

24

24

23

 22

22

21

20

19.5

19

19

19

18.5 

1575 

18.5

766.0

25.5

1.82

2.03

1,520

May

l!

17.5

17.5

16.5

16

16

15

15

15.5

16

15.5

14.5

14.5

14.5

14

14

14

14

14

14

13.5

13.5

13.5

13

 13

13

13 

12.5 

12

T2

453.0

14.6

1.04

1.20

899

June

«..

11.5

11.5

11.5

11.5

11.5

11

11

11

10.5

10.5

10

9.8

9.4

9.4

9.1

8.8

8.8

S.8

8.8

9.1

9.1

9.1

8.8

8.4

8.4

8.1 

ITT 

8.1

-

295.1

9.84

0.703

0.78

585

July

H8.1

8.1

8.1

7.8

7.5

7.5

7.5

7.5

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

6.9

6.9

6.9

6.9

 7.2

6.9

6.9

6.9

It!

6.6 

6.6 

6.6

6.6

224.4

7.24

0.517

0.60

445

Aug.

6.3 

6.3

6.0

6.0

6.0

6.3

6.3

6.3

6.0

6.3

6.0

6.0

6.0

6.0

5.8

5.8

5.5

5.5

5.5

5.5

5.2

17?

5.2

5.2

5.8

6.6 

*5.5 

5.5

5.2

181.7

5.86

0.419

0.48

360

Sept.

5.2 

5.0

5.0

5.0

5.0

5.0

5.2

5.0

5.0

5.2

5.2

5.2

5.2

5.0

5.0

5.0

4^8

4.8

4.8

5.0

6.0

6.0

6.0

6.0

6.6

6.3

6.0

6.0

w163.3

5.44

0.389

0.43

324

Calendar year 1950: Max 135 Mln 6.6 Mean 32.7 Cfsm 2.34 In. 31.66 Ac-ft -23, 640

Water year 1950-51: Max 160 Mln 4.8 Mean 27.0 Cfan 1.93 In. 26.17 Ac-ft 19,540

* Discharge measurement made on this day.

Mote. No gage-height record Feb. 1-18; discharge estimated on basis of recorded range In stage 

and records for stations on nearby streams. Shifting-control method used Oct. 1-10, Feb. 19, 20, 

Aug. 23 to Sept. 20.

288995 O - 54 - 9
120 LAKE WASHINGTON BASIN

Cedar River at Renton, Vfesh.

..--Lat 47°28'50", long. 122°12'10", In NWj- sec. 17, T. 23 N., R. 5 E., on left bank 

rt downstream from bridge on U. S. Highway 10 at Renton and 2 miles upstream from 

mouth. Prior to Dec. 8, 1950, at site 700 ft upstream.

Drainage area. 193 sq ml (revised).

Records available. March 1901 to July 1903 (fragmentary), September 1906 to December 1907 

(monthly discharge only), August 1945 to September 1951.

;e.--Vfeter-stage recorder. Datum of gage Is 15.20 ft above mean sea le-'el, datum of 

1929, supplementary adjustment of 1947. Prior to Jan. 1, 1908, staff gages within 

1 mile of present site, at datum 10.67 ft below mean sea level (unadjusted). Aug. 7, 

1945, to Aug. 15, 1947, water-stage recorder at site 700 ft upstream at datum 20.13 ft 

above mean sea level and Aug. 6, 1947, to Dec. 7, 1950, at datum 19.13 ft above mean 

sea level, datum of 1929, supplementary adjustment of 1947.

Average discharge. 6 years (1945-51), 787 cfs.

Extremes. Maximum discharge during year not determined, probably occurrei Feb. 11 during 

period of no gage-height record (discharge measurement of 6,640 cfs, gige height, 9.48 

ft, made Feb. 10); minimum, 78 cfs Sept. 5, 7.

1901-3, 1906-7, 1945-51: Maximum discharge not determined, probably that of Feb. 

11, 1951; minimum, that of Sept. 5, 7, 1951.

Remarks. Records excellent except those for period of shifting control, which are fair, 

and those for period of no gage-height record, which are poor. Flow regulated by Cedar 

Lake for operation of powerplant. More than 250 cfs is diverted at La^dsberg at times 

by city of Seattle for municipal use.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

3

4

S

6

7

8

9

10

11 

12

13

14

IS

16

17

IS

19

20

21

22 

23

24

25

26

27 

28

29

30

31

Total 

Mean 

Ac- ft

Oct.

190

SoT

241

256

332

462

271

262

362

767

m357

336

285

278

298

321

398

462

388

309 

291

313

336

398

422 

508

477

535

605

11,939 

385 

23,680

Nov.

632 

804 

720

649

726

742

710

622

*545

514

477 

412

529

583

666

649

622

535

535-

627

901

1,160 

1,170

1,710

1,680

1,870

2.100 

1,920

1,870

1,900

"

28,585 

953 

56,700

Dec.

1,700 

1,350 

1,280

1,390

1,370

1,760

1,850

1,400

1,300

1,270

1,260 

1,100

1,100

1,140

1,100

1,000

1,000

1,110

1,020

99S

1,030

1,110 

1,710

2,100

2.400

2,200

2,100 

1,800

1,600

1,600

1,450

44,595 

1,439 

88,450

Jan.

1,500 

2.200 

2,200

1,900

1,600

1,250

1,000

1,200

1,020

895

775 

805

702

750

1,210

1,180

1,080

1,000

915

765

850

1,080 

980

1,000

1,110

1,290

1,180 

960

1,130

1,040

970

35,535 

1,146 

70,480

Feb.

920 

985 

780

640

Wo

790

970

1,200

3,500

*5,500

6.500 

*6,600

4,500

3,200

2,750

2,400

1,870

1,640

1,760

1,520

1,380

1,080 

1,150

1,000

925

1,020

1,000 

1,040

-

-

-

56,820 

2,029 

112,700

Mar.

1,070 

1,030 

790

935

1,040

1,100

1,080

1,060

1,110

1,090

920 

1,140

1,160

1,080

1.280

1,230

1,110

985

990

1,010

995

1,030 

975

870

880

975

960 

965

960

975

915

31,710 

1,023 

62,900

Apr.

890 

885 

735

785

805

695

620

500

655

655

595 

455

625

400

340

510

620

705

680

710

345

285 

565

485

510

475

600 

775

545

660

-

18,110 

604 

35,920

May

565 

605 

635

720

525

560

725

750

705

705

'§15 920

410

680

570

545

310

370

285

255

475

440 

436

433

637

*367

401 

507

701

545

590

16,987 

548 

33,690

June

654 

503

607

624

646

646

621

442

275

418 

495

422

457

392

349

312

414

457

412

408

401 

317

270

346

438

376 

277

246

243

13,168 

439 

26,120

July

322 

387 

552

438

344

451

361

263

314

483

m434

415

402

313

437

394

*418

461

429

238 

309

449

315

300

232 

201

'555 189

254

11,395 

368 

22,600

Aug.

209 

214 

186

157

135

137

157

158

159

149

137 

128

149

166

151

165

171

147

120

138

159

*165 

164

147

96

87

168

164

146

123

4,661 

150 

9,240

Sept.

133 

112 

96

*86

85

82

84

90

85

*98

154

168

158

163

156

125

114

133

133

127

122

128 

91

90

122

124

114 

116

109

170

3,568 

119 

7.080

Calendar year 1950 : Max 3,520 Mln 130 Mean 922 Ac-ft 667,800

Hater year 1950-51 : Max 6,500 win 82 Mean 759 Ac-ft 549,600

* Discharge measurement made on this day.

Note. No gage-height record Dec. 8 to May 22; discharge estimated on basis of records for next 

station upstream, known dally diversion between, and records for nearby stations.
LAKE WASHINGTON BASIN 121

Issaquah Creek near Issaquah, Wash.

Location. Lat 47°28'55", long. 122°02'10", In Wj sec. 15, T. 23 N., R. 6 E., on right 

bank 3j miles south of Issaquah and 4 miles upstream from East Pork.

Drainage area. 26.0 sq mi (revised).

Records available. June 1945 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 210 ft (from topographic map). Prior 

^ Oct. 1, 1948, at datum 0.99 ft higher.

Average discharge. 6 years, 79.9 cfs.

Extremes . Maximum discharge during year, 2,610 cfs Feb. 9 or 10 (gage height, 6.08 ft, 

from f loodmark) ; minimum, 11 cfs Aug. 21, 24.

1945-51: Maximum discharge, that of Feb. 9 or 10, 1951; minimum, that of Aug. 21, 

24, 1951.

Remarks . --Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. Many small diversions 

for irrigation and domestic use. No regulation.

Revisions (water years ). W 1092: 1946.

Rating tables, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge In cubic feet per second)

Oct. 1 to Feb. 10

1.0

1.1

1.3

1.5

1.7

2.0

15.5

21

41

70

104

170

2.3

2.6

3.0

3.5

4.0

4.5

5.0

255

360

520

750

1,030

1,350

1,710

Feb. 11 to Sept. 30

1.5 il

1.7 22

2.0 51

2.3 97

2.6

3.0

3.5

4.0

160

274

462

710

Discharge, In cubic feet per second, water year October 1950 to September 19E1

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

Itotal

Mean

Cfsm

In.

Ac-ft

Oct.

17

16.5

15.5

17

38

31

23

42

58

146

81

51

38

35

30

27

27

45

68

58

44

37

34

32 

44

52

60

78

81

73

70

1,469

47.4

1.82

2.10

2,910

Nov.

110

114 *104

90

122

100

90

75

66

58

51

45

±2

42

49

67

72

64

56

80

137

160

188

if

175

270

198

156

148

-

3<479

116

4.46

4.98

6,900

Dec.

144

118

139

160

151

249

267

198

160

135

135

124

108

100

102

104

108

*97

93

95

99

124

222

231 

201

160

148

133

120

144

131

4,500

145

5.58

6.44

8,930

Jan.

180

380

328

249

192

160

139

124

112

106

104

95

110

108

142

137

148

131

120

118

170

168

148

240 

*299

292

216

172

148

133

120

5,289

171

6.58

7.57

10,490

Feb.

116

156

170

151

137

135

252

360

1.700

1,100

700

350

200

140

120

110

105

100

110

130

110

100

95

90 

85

80

75

70

-

-

-

7,047

252

9.69

10.08

13,980

Mar.

66

63

66

70

65

 64

60

60

59

IS

58

116

146

137

20i

175

135

116

105

101

103

93

84

79 

81

88

83

76

73

81

73

2,838

91.5

3.52

4.06

5,630

Calendar year 1950 : Max 628 Mln 14 Mean

Apr.

67

63

59

56

52

50

49

48

47

44

42

41

41

41

41

40

39

*39

*38

38

37

37

36

35 

34

34

37

46

38

37

-

1,306

43.5

1.67

1.87

2,590

May

35

34

33

37

39

35

38

37

35

35

 S6 79

58

47

42

38

44

42

38

36

34

32

32

36 

37

*33

32

32

34

32

32

1,212

39.1

1.50

1.73

2,400

June

29

28

28

29

29

31

33

32

28

27

27

28

28

27

26

24

24

24

23

23

22

21

21

21 

21

21

20

19.5

19.5

19

753.0

25.1

0.965

1.08

1,490

July

19.5

19.5

19.5

19.5

12

19.5

18

17.5

18

17.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

15.5

*15.5

15

14.5

14.5

14.5

15 

15

15

14.5

14.5

14.5

14

13.5

502.5

16.2

0.623

0.72

997

Alg.

14

14

14.5

14.5

14

13.5

13.5

13.5

14

15

15

17

15

14.5

13.5

13

13

12.5

12.5

12.5

12

12

12.5

*12 

12

12

14.5

28

19

17.5

15

445.5

14.4

0.554

0.64

884

Sept.

14.5

14

13.5

12.5

12.5

13

15

15.5

14.5

14.5

14.5

14

14

13

12.5

12.5

12.5

12.5

12.5

12

11.5

12

12

13.5 

20

16.5

14.5

17

20

37

-

443.5

14.8

0.569

0.63

880

93.3 Cfsm 3.59 In. 48.71 Ac-ft 67,550

Water year 1950-51 : Max 1,700 Mln 11.5 Mean 80.2 Cfsm 3.08 In. 41. 90 Ac-ft 58,080

Peak discharge (base. 500 cfs). Feb. 9 or 10 (time unknown) 2,610 ofs (6.08 ft). 

* Discharge measurement made on this day.

Note. Ho gage-height record Feb. 9 to Mar. 5j discharge estimated on basis of floodraark on outside 

gage and records for stations on nearby streams. Shifting-control method used Jan. 2 t-> Feb. 8.
122 LAKE WASHINGTON BASIN

Sairanamish Lake near Redmond, Wash.

Location. Lat 47°38'40", long. 122°06'10", In NE£ sec. 24, T. 25 N., R. 5 E., on west 

shore, 0.6 mile upstream from outlet and 1.8 miles south of Redmond.

Drainage area. 93.6 sq mi (revised).

Records available. January 1939 to September 1951.

Gage. Staff gage read once daily. Datum of gage is 31.13 ft above mear lower low water 

at Seattle (Corps of Engineers benchmark). Prior to June 21, 1942, staff gage 1,000 

ft north at datum 1.00 ft higher. June 22, 1942, to Aug. 22, 1951, staff gage at present site at datum 1.00 ft higher.

Extremes. Maximum gage height observed during year, 9.40 ft Feb. 12 (present datum); minimum observed, 1.09 ft Aug. 25-27.

1939-51: Maximum gage height observed, that of Feb. 12, 1951; mirimum observed, 

that of Aug. 25-27, 1951.

A stage of 10.83 ft (present datum) was observed on Dec. 22, 1933, from information 

by Corps of Engineers.

Remarks. Many small diversions from tributaries for irrigation and domestic use. Slight 

regulation on tributaries.

Oage height. In feet, water year October 1950 to September 1951

Day

1

2

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

Oct.

0.65

.65

.65

.60

.70

.75

.75

.80

.85

1.05

1.15

1.15

1.15

1.20

1.20

1.15

1.10

1.15

1.20

1.20

1.25

1.25

1.25

1.25

1.30

1.30

1.35

1.40

1.55

1.60

1.65

Nov.

1.78

1.S6

1.95

2.00

2.06

2.09

2.10

2.10

2.10

2.10

2.08

2.05

2.03

2.02

2.00

2.10

2.18

2.19

2.21

2.23

2.35

2.54

2.68

2. '96

3.34

3.52

3.83

4.10

4.16

4.24

-

Dec.

4.40

4.42

4.48

4.56

4.62

4.80

5.02

5.18

5.26

5.28

5.27

5.26

5.20

5.19

5.14

5.00

5.02

4.98

4.90

4.86

4.84

4.80

4.88

5.06

5.22

5.26

5.28

5.26

5.22

5.26

5.28

Jan.

5.30

5.44

5.80

6.04

6.00

5. 98

5.92

5.81

5.70

5.60

5.52

5.38

5.30

5.16

5.24

5. IS

5.20

5.22

5.20

5.22

5.26

5. 38

5.42

5.46

5.62

5.76

5.78

5.75

5.64

5.54

5.42

Feb.

5.28

5.30

5.32

5.30

5.24

5.17

5.20

5.38

6.12

7.73

8.24

8.40

8.32

8.16

7.95

7.74

7.50

7.37

7.16

7.04

6.92

6.76

6.58

6.40

6.26

6.10

5.90

5.72

_

-

Mar.

5.57

5.43

5.27

5.18

5.04

.92

.79

.66

.55

.46

.37

.30

.35

.37

.40

.50

.52

.43

.44

.37

.30

.26

.19

.13

.04

3.99

3.92

3.87

3.78

3.80

3.72

Apr.

3.63

3.56

3.49

3.42

3.36

3. 28

3.21

3.15

3.08

3.00

2.94

2.85

2.79

2.73

2.67

2.60

2.53

2.47

2.40

2.36

2.30

2.24

 2.18

2.12

2.07

2.04

2.02

2.00

1.98

1.94

-

May

1.90

1.86

1.82

1.79

1.76

1.73

1.71

1.69

1.66

1.63

1.68

1.69

1.69

1.6S

1.65

1.62

1.61

1.59

1.57

1.55

1.52

1.49

1.49

1.47

1.44

1.41

1.38

1.36

1.34

1.32

1.30

June

1.28

1.27

1.25

1.22

1.20

1.19

1.17

1.15

1.13

1.11

1.09

1.08

1.07

1.06

1.05

1.03

1.01

.99

.97

.95

.93

.91

.89

.87

.85

.83

.80

.78

.76

.74

-

July

0.72

.71

.70

.68

.66

.63

.61

.60

.59

.59

.57

.56

.55

.54

.53

.52

.50

.49

.48

.46

.44

.42

.41

.39

.38

.37

.35

.33

.33

.32

.31

Aug.

0.30

.29

.28

.27

.26

.25

.24

.24

.23

.22

.21

.21

H

r(a)

(a

J a

rfa(a

(a)

.16

K(a)

1.09

1.09

1.09

1.15

1.17

1.18

1.18

Sept.

1.1S

1.18

1.1S

1.18

1.1S

1.17

1.23

1.19

1.19

1.19

1.19

1.19

1.19

1.19

1.19

1.19

1.1S

1.17

1.16

1.16

1.15

1.15

1.14

1.14

1.21

1.20

1.20

1.21

1.22

1.32

-

a No gage-height record.
LAKE WASHINGTON BASIN 123

Samraamish River near Redmond, Wash.

Location. Lat 47°40'10", long. 122e 07'25", in NE£ sec. 11, T. 25 N., R. 5 E.. on right 

bank 500 ft downstream from Bear Creek, half a mile west of Redmond, and If- miles downstream from outlet of Sammamlsh Lake.

Drainage area.--140 sq ml.

Records available. January 1939 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 30 ft (from topographic map). Prior to 

June 2-2, 1942, staff gage on west shore of lake half a mile uplake from outlet, at 

datum 32.13 ft above mean lower low-water (Corps of Engineers benchmark) diring periods 

water-stage recorder was not operating. June 22, 1942, to Nov. 13, 1946, staff gage on 

west shore of lake 1,000 ft uplake from previous lake gage at previous lake gage datum.

Average discharge.--12 years, 289 cfs.

Extremes. Maximum discharge during year, 1,520 cfs Feb. 11 (gage height, 9.17 ft); mlnl- 

 mum, 43 cfs Aug. 20, 21, 24.

1939-51: Maximum discharge, that of Feb. 11, 1951; minimum, that of Auf. 20, 21, 

24, 1951.

Remarks. Records good except those for periods when lake gage readings were i-sed and 

those for periods of shifting control, which are fair. Some small diversions from 

tributaries for irrigation and domestic use. Slight regulation on some tributaries.

Rating table, water year 19SO-S1, except periods of shifting control 

and periods when Sammamlsh Lake gage was used (gage height, in 

feet, and discharge, in cubic feet per second)

0.9 

1.1 

1.4 

1.7 

2.0

124 

16O

2.5 

3.0 

3.5 

4.0 

5.O

225

290

360

430

580

6.O 

7.0 

8.0 

9.1

730

930

1,160

1,490

Discharge, in cubic feet per second, water >ear October 195O to September 1911

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.

Ac-ft

Oct.

75 

75

75

11

80

85

85

9O

95

115

126

126

126

131

131

126

12O

126

130

130

136

136

136

136

144

144

149

154

172

178 

184

3,787

122

0.871

1.01

7,510

Nov.

l|f

221

228

234

*234

24O

240

240

240

234

234

228

228

236

332

318

297

284

304

360

360

4O2

490

535

550

625

640

625

640

1O, 203

340

2.43

2.71

2O, 240

Dec.

67O 

655

670

670

670

730

770

770

770

770

770

750

715

700

700

715

715

*700

685

685

670

685

715

770

77O

770

770

750

730

fl§

22,490

725

5.18

5.97

44, 61O

Jan.

790 

85O

930

I3O

930

91O

890

850

830

810

790

750

730

715

77O

770

79O

77O

770

77O

850

850

850

850

*87O

890

890

850

83O

790 

770

25,635

827

5.91

6.81

50, 850

Feb.

7 SO 

810

81O

79O

770

750

810

870

1,110

*1,430

1.490

1,49O

1,430

1,37O

1,310

1,250

1,220

1,190

1,130

1,130

1,07O

1,050

1,010

97O

950

910

87O

83O

-

1

29,570

1.OS6

7.54

7.86

58,650

Mar.

^§

73O

715

7OO

685

*655

640

625

61O

595

61O

625

625

640

640

640

625

610

595

595

580

565

550

550

55O

535

520

520

520 

505

19,095

616

4.40

5.07

37,87O

Apr.

490 

475

46O

445

445

430

416

402

402

388

374

36O

346

346

339

325

318

311

3O4

290

284

277

27O

264

258

*251

244

264

258

244

10, 280

343

2.45

2.73

2O,39O

May

238 

232

225

218

218

212

218

212

206

199

238

225

218

212

199

199

199

192

192

186

180

180

173

173

169

165

164

172

165

161 

156

6,096

197

1.41

1.62

12,090

June

*152 

148

146

143

143

144

153

144

138

135

134

136

132

129

128

120

118

120

118

116

114

112

110

1O8

1O6

104

101

99

97

|S

3,743

125

0.893

0.99

7,420

July

If

91

89

87

84

S2

81

80

80

*74

72

73

72

69

67

67

67

65

64

63

62

61

62

60

59

57

57

57

55 

54

2,196

7O.8

O.5O6

0.58

4,360

Aug.

53 

54

55

55

54

51

50

50

51

52

52

51

49

48

48

47

47

46

46

45

45

*45

46

45

46

46

47

61

57

57 

55

1,554

50.1

0.358

0.41

3,08O

Sept.

55 

55

55

53

56

58

56

56

56

55

56

55

54

53

54

54

55

54

53

55

56

57

67

63

62

66

68

86

1,729

57.6

0.411

O.46

3,43O

Calendar year 195O: Max 1,36O Mln 62 Mean 437 Cfsm 3.12 In. 42.39 Ac-ft 316,600

Water year 1950-51: Max 1,49O Mln 45 Mean 374 Cfsm 2.67 In. 36.22 Ac-ft 270,500

* Discharge measurement made on this day. 

Note. Discharge computed from once-daily readings of Sammamlsh Lake gage, Oct. 1 to Nov. 14, June 

18 to July 10. Shifting-control method used Nov. 15 to Jan. 20.
124 LAKE WASHINGTON BASIN

North Creek near Bothell, Wash.

Location.---Lat 47°47'30", -long. 122°11'45" (revised), on line between sees. 29 and 32, T. 

27 N., R. 5 E., on left bank 2 miles north of Bothell and 2^ miles upstream from mouth.

Drainage area. 24.1 sq mi (revised).

Records available. July 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 70 ft (from topographic map). Prior to 

Ipr. 5, 1950, at datum 0.59 ft lower.

Average discharge.--6 years, 38.7 cfs.

Extremes.--Maximum discharge during year, 320 cfs Feb. 9 (gage height, 4.02 ft); minimum, 

4.0 cfs July 12, 13 (gage height, 0.15 ft), but may have been less during period of no 

gage-height record in August.

1945-51: Maximum discharge, 455 cfs Feb. 17, 22, 1949, from rating curve extended 

above 240 cfs on basis of slope-area determination of peak flow; maximum gage height, 

5.45 ft Feb. 22, 1949, datum then in use; minimum discharge, 1.0 cfs Aug. 10, 1946.

Remarks. Records fair except those for periods of no gage-height record, which are poor. 

Many small diversions for irrigation and domestic use. Slight regulation for farm use.

Rating table, water year 1950-51 (gage height. In

feet, and discharge, in cubic feet per second) 

(Shifting-control method used Nov. 16 to Jan. 2, 

Feb. 9 to Mar. 15)

1.0 

1.3

2.3

10

71

2.0 

2.5 

3.0 

4.0

94

126

171

216

310

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

26 

29 

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

il

7.1

7.1

14

32

15.5

14.5

47

30

30

15.5

12.5

12

11.5

10

10

10.5

16

18

13.5

11.5 

11

11

15.5

30

19

28

45 

42 

33

24

603.8

19.5

0.809

0.93

1,200

Nov.

40

32

37

27

23

21

*20

16.5

15.5

15.5

15

14.

14.5

16

46

118

54

36

28

65

70 

60

63

81

126

96

126

89 

68 

101

"

1,536.0

51.2

2.12

2.37

3,050

Dee.

114

85

81

68

60

96

118

88

97

100

80

62

51

52

87

102

110

79

77

81

73 

76

101

96

102

76

65

60 

57 iia 118

2,662

85.9

3.56

4.11

5,280

Jan.

106

177

176

135

100

81

70

63

62

55

61

51

46

62

171

158

153

110

96

93

189 

162

114 «110

102

162

106

76 

64 

58

53

3,222

104

4.32

4.97

6,390

Feb.

50

122

92

78

68

66

140

176

290

280

198

140

110

93

98

80

93

110

102

130

99

81

70

68

66

58

52

46

-

3,056

109

4.52

4.72

6,060

Mar.

45

39

41

54

51

46

43 *43

42

41

41

79

98

89

102

68

68

54

45

41

44 

62

47

39

41

46

41

5£ 

39 

58

43

1,646

53.1

2.20

2.54

3,250

Apr.

37

33

30

29

29

28

27

26

27

27

26

25

24

23

22

21

20

19

16

17

17 

18

17

16.5

16

*15.5

18

32 

29 

20

"

707.0

23.6

0.979

1.09

1,400

May

18

17

16

15

2.0

18

19

21

19

20

65

33

27

24

26

22

18

*16

14.5

13.5

13

12

12.5

12

13.5

12

12

19.5 

18.5 

14 *12

593.0

19.1

0.793

0.92

1,180

June

11.5

10.5

11

12

12

13.5

20

14

12

11

11

12

11.5

11

9.6

8.7

8.3

7.9

7.9

7.5

7.5 

7.5

7.1

7.1

7.1

7.1

6.6

6.6 

6.2 

6.2

"

291.9

9.73

0.404

0.45

579

July

6.2

6.6

6.6

9^2

8.3

7.9

7.1

6.6

7.1

6.6

*5.8

5.1

5.1

5.4

5.8

5.4

5.8 *5.8

5.8

6.2

5.8 

5.8

5.8

6.2

6.6

6.6

5.8

5.4 

5.8 

6.2

5.8

194.2

6.26

0.260

0.30

385

Aug.

5.8

5.8

6.2

6.2

5.8

5.7

5.6

5.6

5.6

5.8

6.2

7

6.6

6.2

6.Z

6.2

6

5.8

5.8

5.8

"H

6.2

5.4

6.2

7.1

8.3

iH10.5

9.2

212.5

6.85

0.284

0.33

421

Sept.

8.7

8.7

8.7

7.9

1*5

8.3

12

13.5

10

10

9.6

9.2

8.7

8.3

8.3

8.3

8.3

8.7

8.7

8.7

8.3 

8.7

9.2

12

11

11.5

11.5

15.5 

8.7 

17

"

301.5

10.0

0.415

0.47

598

Calendar year 1950: Max 335 Min 5.8 Mean 49.2 Cfsm 2.04 In. 27. 6f Ac-ft 35,600

Water year 1950-51: Max 290 Min 5.1 Mean 41.2 Cfsm 1.71 In. 23. 2C Ac-ft 29,800

Peak dischar«ce (base, 250 cfs).-- Feb. 9 (10 p.m.) 320 efs (4.02 ft).

* Discharge measurement made on this day.

Note. No gage-height record Jan. 29 to Feb. 1, Apr. 6-27, Apr. 30 to May 10, Key 16, 17, Aug. 

3-20; discharge estimated on basis of 1 discharge measurement and records for Isaaouah Creek near 

Issaquah.
LAKE WASHINGTON BASIN 125

Sammamish River at Bothell, Wash.

Location.--Lat 47°45'00", long. 122°11'30", in NW^SE^ sec. 8, T. 26 N., R. 5 E., on left

 bank in Bothell a quarter of a mile downstream from North Creek and 4£ miles upstream 

from mouth.

Drainage area.--199 sq ml.

Records available.--October 1939 to September 1951.

Gage.--Water-stage recorder. Datum of gage Is mean lower low-water at Seattle (Corps of

 Engineers, U. S. Army, benchmark). Prior to Dec. 28, 1939, staff gage at s*wne site and 

datum.

Average discharge.--12 years, 366 cfs.

Extremes.--Maximum discharge during year, about 1,900 cfs Feb. 12 and/or 13 (elevation,

 32.05 ft* 0.1 ft); minimum, 62 cfs Aug. 22, 23 (elevation, 22.92 ft).

1939-51: Maximum discharge, that of Feb. 12 and/or 13, 1951; minimum, that of Aug. 

22, 23, 1951.

Remarks. Records excellent except those for periods of no gage-height record, which are 

Fair. Some small diversions from tributaries for irrigation and domestic use. Slight 

regulation on some tributaries.

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1-8)

22.9

23.2

23.5

24.0

24.5

60 

89 

12Z 

18Z 

248

25.0

25.5

26.0

27.0

28.0

320

397

479

655

857

29.0 1,080

30.O 1,320

31.0 1,580

32.0 1,870

Discharge, in cubic feet per second, water year October 195O 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

Cfsm

In.

Ac-ft

Oct.

103

102

102

111

163

144

133

189

23.4

248

208 

188 

182

176

169

169

169

188

208

202

188

182

182

182

221

2Z1

241 

305

m276

5,981

193

0.970

1.12

11,860

Nov.

328

335

350

328

312

312

*305

298

290

283

283

m283

324

564

462

397

365

429

513

496

547

674

773

753

857 

836

773

815

~

13,837

461

2.32

 2.59

27,450

Dec.

923

857

836

836

815

945

1,010

967

945

990

923 

879 

836

815

879

923

945

857

*836

836

836

836

945

967

990

923

901 

879

857 

1.060

1,060

28,107

907

4.56

5.25

55, 750

Jan.

1,010

1,130

.250

,200

,130

,O8O

,010

990

945

923

901 

857

815

815

1,100

1,080

1,100

1,010

967

945

1,180

1,180

1,080

*1,060

1,040

1,180

1,130 

1,010

945 

901

857

31,821

1,026

5.16

5.95

63,120

Feb.

836

1,060

1,040

967

923

901

1,080

1,180

1,500

*1,750

1,840 

1.870 

1,870

1,840

1,780

1,690

1,600

1,580

1,520

1,520

1,450

1,380

1,280

1,200

1,150

1,060

*1,010 

945

_

-

37,822

1,351

6.79

7.07

75,020

Mar.

923

857

836

857

815

794

753

733

713

693

693 

*794 

836

794

836

815

773

733

713

693

674

713

655

636

618

655

618 

600

600 

636

6OO

22,659

731

3.67

4.23

44,940

Apr.

582

BTf

530

513

496

479

479

462

445

445

429 

405 

397

389

373

365

358

350

342

335

328

320

320

305

298

*290

298 

350

342

312

"

11,884

396

1.99

2.22

23,570

May

298

283

276

276

283

269

276

269

26Z

255

365 

312 

290

276

269

255

255

255

241

234

228

221

228

221

221

214

214 

228

228 

214

*2Q8

7,924

256

1.29

1.48

15,720

June

195

195

188

188

188

195

214

195

182

176

176 

182 

176

169

163

157

155

151

147

144

144

140

139

140

138

134

132 

129

125 

122

"

4,879

163

0.819

0.91

9,680

July

121

120

118

122

121

122

117

114

113

112

*107 

101 

99

99

97

96

95

95

93

93

93

92

92

91

91

90

89 

89

89 

86

Si

3,141

101

0.508

0.59

6,230

Aug.

S3

84

86

86

84

81

78

78

80

81

81 

79 

76

75

74

73

72

71

70

69

*68

66

65

64

64

66

68 

9_6

91 

85

80

2,374

76.6

0.385

0.44

4,710

Sept.

77

77

77

75

72

74

81

90

84

*81

81 

79 

78

78

76

75

76

77

78

76

75

76

77

81

103

93

88 

100

100 

128

2,483

82.8

0.416

0.46

4,920

Calendar year 195O: Max 1,630 Win 82 Mean 531 Cfsm 2.67 In. 36.25 Ac-ft 384, 8OO

Water year 195O-51: Max 1,87O Mln 64 Mean 474 Cfsm 2.38 In. 32.31 Ac-ft 343,000

* Discharge measurement made on this day.

Note. No gage-height record Feb. 12, 13, July 29 to Aug. 2oj discharge estimated on basis of 

ords for stations on nearby streams.
126 SNOHOMISH RIVER BASIN

South Pork Skykomish River near Index, Wash.

Location.--Lat 47e 48'20", long. 121 e 32i40", In NE£ sec. 29, T. 27 N., R. 10 E., on right 

bank 600 ft upstream from Sunset Palls, 2 miles upstream from confluence with North 

Pork, and 2 miles southeast of Index. Discharge measurements made alout 2 miles upstream from gage.

Drainage area. 355 sq mi.

Records available. October 1902 to September 19^5, April 1911 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 574.80 ft (revised) above mean sea level, 

datum of 1929, supplementary adjustment of 1947. Oct. 1, 1902, to Sept. 30, 1905, 

staff gage at site 300 ft downstream at datum 0.39 ft higher. Apr. 26, 1911, to Sept. 

30, 1913, staff gage at former site at datum 1 ft higher than present gage. Oct. 1, 

1913, to Sept. 13, 1920, staff gage, Sept. 14, 1920, to Oct. 1, 1921, water-stage recorder, Jan. 23, 1922, to Mar. 14, 1934, staff gage, all at former site at present 

datum.

Average discharge. 43 years, 2,356 cfs.

Extremes. Maximum discharge during year, 33,300 cfs Feb. 9 (gage height, 19.10 ft); minimum, 310 cfs Sept. 24 (gage height, 1.62 ft).

1902-5, 1911-51: Maximum discharge observed, 57,000 cfs Dec. 18, 1917 (gage height, 

22.6 ft, site then in use); minimum observed, 214 cfs Oct. 15-21, 23, 1925.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No diversion or regulation.

Revisions (water years). W 512: 1903-5, 1911-14. W 572: Drainage are1?. W 792: 1934.

Rating tables, water year 1950-51 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 5C

2.4 

2.7 

3.0 

5.5 

4.0 

5.0 

6.0 

7.0

660

820

990

1,310

1,660

2,460

3,400

4,490

8.0

9.0

10.0

12.0

14.0

16.0

18.0

5,740

7,150

8,740

12,600

17,600

23,400

29,800

1.6 

2.0 

2.5 

3.0 

3.5 

4.0

300

500

770

1,060

1,370

1,720

5.0 

6.0 

7.0 

8.0 

9.0 

10.0

2,530

3,480

4,570

5,810

7,180

8,730

Note. Same as preceding 

table above 10.0 ft.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

Ac-ft

Oct.

710

685

660

685

1,340

2,120

3,000

3,390

3,710

12.900

6,200 

 3,600

2,640

2,460

2,120

1,760

1,620

2,380

4,040 

3,930

2,820

2,280

1,960 

1,760

2,820

3,000 

3,400

4,260

3,500

2,910

2,640

91,300

2,945

8.30

9.56

181,100

Nov.

3,000

3,400

4,970

5,220

5,610

4,040

3,500

2,820

2,370

2,120

1,880 

1,730

1,620

1,520

1,450

1,560

1,520

1,420

1.280 

1,450

3,240

5,620

4,660 

9,440

9,710

9.970 

8,570

6,010

*4,490

3,600

-

117,790

3,926

11.1

12.34

233,600

Dec.

3,000

2,550

2,280

2,120

1.960

2,550

2,910

2,550

2,370

3,200

4,160 

4,490

3,400

2,820

2,640

2,820

4,040

3,600

3,200 

4,780

6,570

6,870

11.100 

10,800

10,500

6,150 

4,970

4,490

3,820

3,930

3,300

133,940

4,321

12.2

14.03

265, 700

Jan.

2,910

3,600

4,510

3,200

2,550

2,200

1,920

1,760

1,620

1,520

1,450 

 1,380

1,800

2,200

1,960

1,760

1,660

1,520

1,420 

1,310

1,280

1,200

1.140 

2,050

4,840

6.040 

3,500

2,460

2,040

1,800

1,620

70,320

2,268

6.39

7.37

139,500

Feb.

1,560

1,590

1,760

1,560

1,450

1,340

2,200

6,640

26,100

27.000

17,100 

8,900

5,810

4,450

3,680

2,980

2,710

2,350

2,190 

2,110

1,910

1,760

1,620 

1,540

1,480

1,370 

1,270

1.210

-

-

135,640

4,844

13.6

14.21

269,000

Mar.

*1,150

1,120

1,090

1,090

1,030

1,000

940

940

910

880

852 

910

1,030

1,090

1,910

2.110

1,620

1,440

1,440 

1,650

2,030

1,950

1,720 

1,650

1,720

1,790 

1,870

1,760

1,790

1,790

1,720

43,992

1,419

4.00

4.61

87,260

Apr.

1.760

2,030

3,530

3,180

3,280

3,080

3,380

3,280

2,890

*2,710

2,710 

3,380

4,340

4.450

4,120

4,120

4,340

4,230

3,680 

2,980

2,620

2,350

2,270 

2,270

2,350

2,530 

2,620

2,890

2,890

a2,500

-

91,760

3,059

8.62

9.61

182,000

May

a2,200

a2.000

a2,100

a3,000

a3,900

4,010

a4,400

a3,700

a3,700

a6,000

all. OOP 

a7,000

a5, 000

4,230

3,790

4,340

 5,810

5,050

5,420 

4,120

4,450

5,420

6,900 

6,340

 6,070

4,810 

4,340

4,230

3,680

3,280

2,980

143,270

4,622

13.0

15.01

284,200

June

2,980

3,280

3,680

4,010

3,790

3,680

4,340

3,790

3,680

4,010

4,120 

4,010

4,010

4,340

4.930

4,450

3,900

3,680

3,580 

3,380

3,380

3,280

3,280 

3,280

3,180

3,080 

 2,890

2,890

2,800

2.710

~

108,410

3,614

10.2

11.36

215,000

July

2.620

2,530

2,440

2,270

1,870

1,720

1,580

1,510

1,480

1,540

1,510 

1,480

1,510

1,440

1,340

1,270

1,240

1,210

1,150 

1,060

1,000

940

940 

940

910

880 

825

798

770

7VO

715

42,258

1,363

3.84

4.43

83,820

Aug.

698

682

666

644

627

611

600

588

583

578

566 

550

530

520

515

510

500

485

475 

470

475

475

445

430

415

400 

410

460

 500

616

578

16,602

536

1.51

1.74

32,930

Sept.

490

455

440

430

415

405

440

676

572

495

465 

435

415

415

405

405

395

385

375 

355

345

335

ffo

770

825 

572

644

1,270

5.570

~

17,664

589

1.66

1.85

55,040

Calendar year 1950: Max 15,200 Mln 570 Mean 3,420 Cfsm 9.63 In. 130.78 Ac-ft 2,476,000

Water year 1950-51: Max 27,000 Mln ,325 Mean 2,775 Cfsm 7.82 In. 106.12 Ac-ft 2,009,000

Peak discharge (base. 10.OOP cfs). Oct. 10 (12 m.) 17.900 cfs (14.12 ft); Nov. 25 (8 p.m.) 14.800 

cfs (12.86 ft); Dee. 23 (6:30 p.m.) 15,000 efs (12.97 ft); Feb. 9 (11 p.m.) 55,500 efs (19.10 ft); 

probably May 11 (time and discharge unknown).

* Discharge measurement made on this day. ;

a No'gage-height record; discharge estimated on basis of recorded range In stage and records for | 

stations on nearby streams.
SNOHOMISH RIVER BASIN 127

Skykomish River near Gold Bar, Wash.

Location.--Lat 47°50'15", long. 121°40'00", In SWi sec. 9, T. 27 N., R. 9 E., on right 

bank 2 miles southeast of Gold Bar and 5 miles upstream from Wallace River and 

Startup.

Drainage area. 535 sq mi.

Records available. September 1928 to September 1951.

Gage. Water-stage recorder. Datum of gage is 209.26 ft (revised) above mean sea level, 

datum of 1929 (supplementary adjustment of 1947).

Average discharge. 23 years, 3,764 cfs.

Extremes. Maximum discharge during year, 65,600 cfs Feb. 10 (gage height, 18.87 ft), 

from rating curve extended above 33,000 cfs; minimum, 467 cfs Sept. 23 (gag? height, 

3.06 ft).

1928-51: Maximum discharge, 79,000 cfs Dec. 21, 1933 (gage height, 21.3 ft), from 

rating curve extended above 33,000 cfs; minimum, 382 cfs Oct. 9, 1938 (gage height, 

2.78 ft).

Remarks. Records excellent except those for periods of doubtful or no gage-height record , which are fair. No diversion or regulation.

Discharge, In cubic feet per second, water year October 1950 to September l£51

Day

1 

2

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.

Ac-ft

Oct.

1,160 

1,070

971

1,555

2,430

4,070

5,190

5,830

 6,050

19.000

9,260 

5,290

3,980

3,640

3,160

2,640 

2,430

3,980

6,050 

5,290

3,980

3,320

2,860 

2,780

5,190

4,800 

5,610

6,510

5,290

4,610

4,160

141,621

4,568

8.54

9.84

280,900

Nov.

4,900 

5,390

8,050

8,330

8,610

6,270

5,290

4,250

3,560

3,160

2,860 

2,570

2,360

2,230

2,100

2,360 

2,230

2,100

1.910 

2,230

4,800

8,330

6,750 

14,700

15,300

15.400 

13,300

9,200

6,750

 5,290

-

180,580

6,019

11.3

12.55

358,200

Dec.

4,430 

3,730

3,480

3,240

2.930

3,980

4,520

3,980

3,900

5,610

6,750 

6,750

5,090

4,250

4,160

4,610 

6,270

5,610

5,190 

8,330

10,400

10,400

16,800 

16 . 900

16,900

9,500 

7,510

6,750

5,830

6,050

5,090

208,940

6,740

12.6

14.52

414,400

Jan.

4,520 

5,500

6,990

4,900

3,900

3,320

3,000

2,710

2,500

2,300

2,160 

 2,100

2,640

3,320

3,000

2,710 

2,500

2,300

2,100 

1,970

2,040

1,910

1.790 

3,240

8,330

10.100 5,616

3,980

3,240

2,860

2,570

110,110

3,552

6.64

7.65

218,400

Feb.

2,360 

2,500

2,710

2,360

2,230

2,040

3,740

10,700

45,700

48.400

 28,300 

14,600

9,500

87,000

a6,000

a5,000 

34,200

a3,800

a3,400 

a3,300

33,000

32,700

32,500 

a2,400

32,300

32,200 

a2,100

*1,970

-

-

-

227,010

8,108

15.2

15.78

450,300

Mar.

1,970 

1,850

1,850

1,850

1,730

1,670

1,610

1,560

1,560

1,500

1.440 

1,670

1,850

1,910

3,380

3.560 

2,710

2,430

2,300 

2,710

3,240

3,160

2,710 

2,570

2,640

2,780 

2,860

2,640

2,710

2,710

2,640

71,770

2,315

4.33

4.99

142,400

Apr.

2.710 

3,080

3,900

4,700

4,900

4,610

5,090

4,800

4,340

4,070

*3,980 

5,090

6.750

6,750

6,270

6,270 

6,750

6,270

5,290 

4,430

3,900

3,640

3,400 

3,400

3,640

3,820 

3,980

4,430

4,430

3,820

-

138,510

4,617

8.63

9.63

274,700

May

3,320 

3.000

3,160

4,160

6,050

6,270

6,750

5,830

5,830

8,810

17.500 

10,700

7,510

6,050

5,500

6,750 

8,900

7,510

6,270 

6,270

*6,750

8,610

10,700 

10,100

9,200

6,990 

6,510

6,270

5,390

4,900

4,520

215,880

6,964

13.0

15.01

428,200

June

4,700 

5,090

5,610

6,050

5,830

5,610

6,750

5,830

5,830

6,050

6,270 

6,050

6,050

6,510

7. 510

6,750 

6,050

5,610

5,500 

5,290

5,190

5,090

4,990 

5,190

*4,990

4,800 

4,520

4,430

4,340

4.250

166,730

5,558

10.4

11.59

330,700

July

4.070 

3,980

3,900

3,480

2,860

2,640

2,430

2,300

2,300

2,430

2,360 

2,360

2,300

2,230

2,100

2,040 

1,970

1,910

1,790 

1,610

1,560

1,500

1,500 

1,500

1,440

1,370 

1,290

1,260

1,230

1,210

1.180

66,100

2,132

3.99

4.59

131,100

Aug.

1.120 

1,100

1,060

1,030

1,010

962

953

926

926

926

908 

856

830

814

805

797 

773

757

741 

741

741

733

718 

695

672

658 

650

718

749

882

 890

26,141

843

1.58

1.82

51,850

Sept.

7S7 

710

688

672

650

636

688

1,380

1,010

839

814 

725

680

636

650

658

636

622

601 

567

534

509

479 

528

1,500

1,440 

971

1,100

2,360

6.420

30,460

1,015

1.90

2.12

60,420

Calendar year 1950: Max 24,500 Mln 830 Mean 5,357 Cfsm 10.0 In. 135.91 Ac-ft 3,879,000

Water Water year year 1950-51: 1950-51: Max Max 48,400 48,400 Mln Hln 479 479 Mean Mean 4,339 4,339 Cfsm Cfsm 8.11 6.11 In. In. 110.09 110.09 Ac-ft Ae-ft 3,142,000 3,142,00

Peak discharge (base. 19.000 cfsl.--0ot. 10 (11:30 a.m.) 26,500 cfs (12.88 ft)j Nov. 24 (5 to 6 

a.m.) 19,300 cfs (11.23 ft); Nov. 25 (8 p.m.) 23,600 ofs (12.22 ft); Dec. 23 (7 p.m.) 23,600 cfs 

(12.19 ft); Feb. 10 (l2:15 a.m.) 65,600 cfs (18.87 ft); May 11 (8:30 a.m.) 20,100 cfs (11.39 ft). 

 Discharge measurement made on this day.

No gage-height record; discharge estimated on basis of recorded range In stage and records for 

South ;hPork Skykomish Skykomish River near Index.

Note. Oage-helght record doubtful but used Sept. 9-29.
128 SNOHOMISH RIVER BASIN

Wallace River at Gold Bar, Wash.

Location.- -La t 47°51'50", long. 121°41'45", in NE£ sec. 6, T. 27 N., R. 9 E., on left 

bank 30 ft downstream from highway bridge a quarter of a mile north of Gold Bar and 

It miles upstream from Olney Creek.

Drainage area. 19.8 sq mi.

Records available. December 1928 to September 1933, July 1946 to Septemler 1951.

Sage . Water-stage recorder. Altitude of gage is 200 ft (from topographic map). Prior 

Fo Sept. 30, 1933, staff gage 40 ft upstream at different datum.

Average discharge. --9 years (1929-33, 1946-51), 163 cfs.

Extremes . --Maximum discharge during year, 1,780 cfs Feb. 9 (gage height, 8.75 ft); mlnlmum, 11 cfs Aug. 19, 22, 24, 25, 26, Sept. 5, 6, 21.

1928-33, 1946-51: Maximum discharge observed, 2,590 cfs Feb. 26, 1932 (gage 

height, 8.00 ft, site and datum then in use); minimum observed, 9.6 cfs Aug. 27, Sept. 

3-5, 1930 (gage height, 0.32 ft, site and datum then in use).

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of doubtful or no gage-height record, which are poor. No diversion 

or regulation.

Revisions . W 1062: Drainage area.

Rating tables, water year 1950-51, except periods of shifting control or 

doubtful gage-height record (gage height, In feet, and discharge, In

4 1

4

4

4

5

5

3

5

7

0

3

Discharge

Oct.

26

41

60

83

134

210

, In

1 to Apr

5.

6.

6.

7.

7.

8.

. 4

6

0

5

0

5 1

0 1

cubic feet per

308

456

675

925

,18O

,44O

sec 01

Apr. 4 to Sept. 30

4.1 

4.3 

4.5 

4.7 

5.0

5.3 

5.6 

6.0 

6.5 

7.0

148

227

373

617

890

Day

1

2

3

4

5

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.

Ac-ft

Oct.

37

32

29

34

246

288

251

29O

248

 608

226

148

112

99

86

73

68

165

248

134

100

84

73 

73 

294

185

222

258

180

160

152

5,203

168

8.48

9.77

10,320

Nov.

298

315

6O8

375

288

207

172

126

100

89

81

73

67

61

58

87

69

6O

P

TO

143

264

290

m

394

526

298

222

 177

-

6,959

232

11.7

13.07

13,800

Dec.

146

122

116

114

109

288

267

190

216

398

340

232

162

132

185

267

312

182

204

329

274

305

644 

669 

531

274

264

251

235

288

204

8,25O

266

13.4

15.50

16,360

Jan.

170

261

305

216

174

148

128

114

99

9O

*83

79

130

126

130

120

111

99

91

86

99

90

83 

264 

562

520

229

146

dlOO

d84

412.

5.OO9

162

8.18

9.41

9,940

Feb.

d65

dSO

87

75

70

64

2T2

548

1.380

1,386

*962

468

312

222

193

157

139

124

111

116

102

94

87 

83 

79

75

68

66

-

-

-

7,419

265

13.4

13.93

14,720

Mar.

 62

60

5S

59

56

53

52

50

48

46

46

57

204

148

292

271

172

139

139

2O2

229

182

148 

134 

143

177

167

136

157

155

130

3,972

128

6.46

7.46

7,880

Apr.

134

188

254

271

218

230

221

185

160

155

172

*256

276

157

224

237

240

207

162

133

120

116

m139

144

153

207

195

139

-

5,611

187

9.44

10.54

11,130

May

108

93

114

188

270

221

233

182

201

273

681

254

237

*193

182

221

253

195

162

158

182

215

227 

273 

207

141

128

135

116

114

101

6,288

203

10.3

11.81

12,470

June

110

116

120

110

101

128

332

2O7

167

148

133

130

126

122

120

101

86

80

65

61

61

58

53 

52 

52

58

51

51

*48

45

-

3,092

103

5.20

5.81

6,130

Julj43

§g.

S3

43

36

39

36

31

30

29

27

26

26

24

22

22

21

21

20

19.5

19

19

18.5 

18.5 

18.5

18.5

17.5

17

17

17

16,5.

821.5

26.5

1.34

1.54

1,630

Aug.

16.5

16

15.5

15

15

15

14.5

14.5

15

14.5

14.5

14.5

14

13

13

13

12.5

12

12

12

12

11.5

12 

11.5 

I!

11

al4

a22

a!7

a2S

 21

453. 0

14.6

0.737

0.85

899

Sept.

16.5

14.5

13

13

11.5

11.5

13.5

129

30

22

22

19

17.5

16

15

14.5

14.5

13.5

14

13.5

13

13

13 

14 

22O

80

42

80

150

482

-

1,541.0

51.4

2.60

2.89

3,060

Calendar year 1950 : Max 1,18O Mln n Mean 199 Cfsm 10.1 In. 136.56 Ac-ft 144,200

Water year 195O-51 : Max 1,38O Mln n Mean 150 Cfsm 7.53 In. 1O2.58 Ac-ft 1O8.3OO

Peak discharge (base. 1.55O cfs). Nov. 24 (2 to 3:30 a.m.) 1,360 cfs (7.82 ft); Dec. 24 (9 to 

10 p.m.) 1,440 cfs (7.86 ft); Feb. 9 (2 p.m.) 1,780 cfs (8.75 ft).

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of recorded range In stage and records for 

stations on nearby streams.

d Doubtful gage-height record; discharge estimated on basis of records for stations on nearby 

streams.

Note. Shifting-control method used Nov. 24 to Jan. 26, Feb. 10-16.
SNOHOMISH RIVER BASIN 129

Sultan River near Startup, Wash.

Location. La t 47°58'30", long. 121°46'30", in NE£ sec. 28, T. 29 N., R. BE., on left

 bank l| miles upstream from Intake of Everett water-supply system and 7f miles north 

of Startup.

Drainage area. 74.5 sq mi (revised).

Records availably. May 1934 to September 1951.

Qage. Water-stage recorder. Altitude of gage is 750 ft (from topographic map). Prior 

~^o July 2, 1934, staff gage at same site at datum 3.29 ft higher.

Average discharge. 17 years, 759 cfs.

Extremes. Maximum discharge during year, 34,600 cfs Feb. 9 (gage height, 17.22 ft), from

 high-water mark in well), from rating curve extended above 2,900 cfs on bafis of slopearea determination of peak flow; minimum, 60 cfs Sept. 24 (gage height, 3.39 ft).

1934-51: Maximum discharge, that of Feb. 9, 1951; minimum, 48 cfs Sept. 25, 27, 29, 

30, 1942; minimum gage height, 3.32 ft Sept. 22, 23, 24, 1938.

Remarks.--Records good except those for periods of no gage-height record or shifting control, which are fair. No diversion or regulation.

Revisions (water years). W 1182: 1935, 1936(M), 1937-39, 1940(M), 1941, 1942(P), 1943-49.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

3.4

3.7 

4.0 

4.3 

4.6 

5.0

74

107

149

202

270

380

5.5 

6.0 

6.5 

7.0 

8.0 

9.0

560

770

1,030

1,360

2,200

3,400

10.0

11.0

12.0

14.0

16.0

5,000

7,100

9,800

17,000

27,000

Discharge, In cubic feet per second, water year October 195o to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

18

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Hotel

Mean

Cfsm

In.

Ac-ft

Oct.

262

230

206

250

1,660

2,350

1,950

2,100

1,360

5.400

1,620

945

»680

560

480

414

365

722

1,430

945

680

520

438

398 

1,660

1,430

1,290

1,740

1,260

1,060

1,030

35,455

1,144

15.4

17.70

70,320

Nov.

1,220

1,460

2,500

2,000

2,020

1,150

970

720

600

5OO

434

380

341

318

300

540

445

377

320

500

1,320

1,860

1,420

4.990 

4,150

2,720

2,910

1,540

1,030

795

-

39,830

1,328

17.8

19.88

79,000

Dec.

640

540

520

500

*480

1,400

1,180

370

1,170

2,350

1,740

1,290

895

700

1,030

1,360

1,950

1,120

1,220

2,300

2,100

1,950

3,610

4.650 

3,100

1,360

1,540

1,360

1,150

1,500

1,000

46,575

1,503

20.2

23.25

92,380

Jan.

820

1,580

1,360

770

600

480

414

380

335

308

»295

295

745

660

680

540

442

362

315

290

298

272

241

1,200 

4.600

3,550

1,290

795

a650

a520

a450

25,544

824

11.1

12.75

50, 670

Feb.

a400

600

600

480

414

374

2,050

5,280

*25.400

16,600

6,230

2,050

1,260

895

820

680

600

520

480

520

462

389

353

332

312

285

262

248

-

-

-

66,896

2,389

32.1

33.39

132,700

Mar.

234

221

208

215

210

204

196

187

181

176

169

234

640

480

1.180

920

600

480

462

»640

770

640

520

480 

520

660

580

500

600

600

540

14,247

460

6.17

7.11

28,260

Apr.

540

700

970

1,090

970

895

970

845

745

680

770

1,150

1.520

1,150

1,090

1,120

1,120

*1,000

795

640

560

520

500

520 

560

600

620

870

870

640

"

24,820

827

11.1

12.39

49,230

May

520

445

480

700

1,000

920

1,090

870

845

1,150

2.910

1,460

1,000

820

770

920

1,030

845

700

700

*770

970

1,150

1,180 

1,060

745

680

680

640

580

520

28,150

908

12.2

14.05

55,830

June

540

600

640

620

580

620

1.060

795

680

680

640

600

620

660

720

640

560

520

480

480

462

480

462

445

442

420

383

»386

389

322

16,981

566

7.60

8.48

33,680

July

359

350

347

312

260

270

250

221

208

223

223

221

223

215

198

189

187

183

174

157

144

132

143

146 

144

137

133

130

128

123

120

6,260

202

2.71

3.12

12,420

Aug.

119

117

115

112

110

106

102

100

99

97

96

96

93

*91

87

86

85

85

84

83

83

83

82

81 

79

11

82

115

94

121

121

2,987

96.4

1.29

1.49

5,920

Sept.

105

93

86

83

81

78

120

560

234

162

142

121

108

95

87

82

77

72

70

*67

64

63

62

69 

580

323

181

272

870

5.120

-

8,127

271

3.64

4.06

16,120

Calendar year 1950'. Max 10,700 Mln 127 Mean 1,068 cfsm 14.3 In. 194.68 Ac-ft 773,500

Water year 1950-51- Max 23,400 Mln 62 Mean 865 Cfsm 11.6 In. 157.67 Ac-ft 626,500

Peak discharge (base. 6.000 cfs).-

11,300 cfs (12.50 ft); Dec. 24 (8 a.n

 Oct. 10 (6:30 a.m.) 11,000 cfs (12.43 ft); Nov. 24 (3 a.m.) 

i.) 8,600 cfs (11.56 ft); Jan. 26 (2 a.m.) 6,200 cfs (10.60 ft);

. .. . . ..

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.

Note. Shifting-control method used Jan. 10-23, Sept. 16-28.
130 SNOHOMISH RIVER BASIN

Woods Creek near Monroe, Wash.

Location. La t 47°52'20", long. 121° 55' 10", in Wj sec. 33, T. 28 N., R. 7 E., on left bank 

200 ft downstream from West Fork and 2j miles northeast of Monroe.

Drainage area. 53.4 sq mi (revised),

Records available. July 1946 to September 1951.

Gage.--Water-stage recorder. Altitude of gage Is 100 ft {from topographic map).

Average discharge. 5 years, 161 cfs.

Extremes. Maximum discharge during year, 1,260 cfs Feb. 10 {gage height, 6.26 ft); minimum, 12 cfs Aug. 22 (gage height, 1.97 ft).

1946-51: Maximum discharge, 1,710 cfs Feb. 26, 1950 {gage height, 7.18 ft); minimum, that of Aug. 22, 1951.

Remarks. Records good except those for periods of shifting control, which are fair. Severa! small diversions above station for farm use. No regulation.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge. In cubic feet per second)

1.9 

2.1 

2.3 

2.5

2.8 

3.1 

3.5 

4.0

131

207

327

4.5 

5.0 

5.5 

6.1

475

660

860

1,160

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13 

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

22

21

Tz 

48

125

68

80

89

129

110

80 

66 

58 

51

47

 45

49

57

54

48

46

43

44

71

86

117

188 

182

176

182

2,423.5

78.2

1.46

1.69

4,810

Nov.

205

245

283

264

274

240

220

190

168

153

143

129 

120

ttf

296

327

301

269

286

327

340

340

458

492

456

680

640 

442

-

8,901

207

5.56

6.20

17,650

Dec.

»396

340

327

294

257

276

314

294

276

327

314

278 

243

269

291

262

245

243

240

238

271

294

382

327

288

294

266

426

562

9,290

300

5.62

6.47

18,430

Jan.

492

660

800

640

475

368

301

257

222

 199

186

166

m266

298

340

301

284

269

396

426

354

327

340

475

411

314 

257

220

194

10,552

340

6.37

7.35

20,930

Feb.

178

234

250

225

211

194

259

340

722

1.120

 860

620 

442 

354 

340

294

266

327

301

354

314

276

243

222

227

205

182

166

-

-

9,726

347

6.50

6.77

19,290

Mar.

155

 141

140

162

161

145

134

128

126

120

114

161 

250 

276 

411

510

396

314

286

266

266

327

314

284

257

257

245

218 

201

214

196

7,175

231

4.33

5.00

11,230

Apr.

178

161

148

138

126

117

109

102

96

90

86

83 

78 

76 

71

68

66

65

62

59

57

54

52

51

49

12

48

63 

86

73

"

2,559

85.3

1.60

1.78

5,080

May

63

58

53

52

59

56

58

59

57

54

146

ffi

102 

90

81

78

74

68

63

59

54

51

*49

48

46

44

47 

46

43

11

2,083

67.2

1.26

1.45

4,130

June

39

37

35

35

36

45

69

59

46

41

39

39

37 

35 

33

32

30

29

27

27

26

25

25

24

24

23

23

22 

22

fl

1,005

33.5

0.627

0.70

1,990

Jul-'

21

 21

21

22

22

23

21

19

18.5

18.5

17.5

17.5 

17 

17 

17

17

17.5

17

lf.5

If

15.5

IE. 5

IE

IE

IE. 5

16

IE

IE 

IE

14.5

il

543.0

17.5

0.3*8

0.38'

1,080

Aug.

15

15.5

14.5

14

14

13.5

13.5

13.5

14

14

14

14 

14 

14 

13.5

13.5

13

12.5

12.5

13

12.5

12

12.5

12.5

12.5

12.5

 13.5

tt

15.5

15

426.0

13.7

0.257

0.30

845

Sept.

14

14

13.5

13

12*5.

12.5

14.5

32

23

19

17.5

16.5 

16 

15.5 

15.5

15

15

15

15

15

15.5

15

15.5

17

26

22

18.5

 19 

21

31

"

527.5

17.6

0.330

0.37

1,050

Calendar year 1950: Max 1,310 Mln 16 Mean 195 Cfsm 3.65 In. 49.67 Ac-ft 141,500

Water year 1950-51: Max 1,120 Mln 12 Mean 151 Cfsm 2.83 In. 38.46 Ac-ft 109,500

(6.26 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Aug. 10 to Sept. 6.
SNOHOMISH RIVER BASIN 131

Griffin Creek near Tolt, Wash.

Location. Lat 47e 37'00", long. 121°54<15", in SW^SWf sec. 27, T. 25 N., R. 7 E., on left 

bank a quarter of a mile upstream from bridge on state Highway 15B, three-quarters of 

a mile upstream from mouth, and 2 miles south of Tolt. Prior to Sept. 21, 1951, at 

site 1,000 ft downstream.

Drainage area. 16.8 sq mi.

Records available. June 1945 to September 1951.

Oage. Water-stage recorder. Altitude of gage is 120 ft (from topographic map). Prior to 

Sept. 21, 1951, water-stage recorder at site 1,000 ft downstream at different datum.

Average discharge. 6 years, 47.2 cfs.

Extremes. Maximum discharge during year, 738 cfs Feb. 10 (gage height, 5.03 ft, site and 

datum then in use); minimum, 2.6 cfs Aug. 7, 8, 16, 24.

1945-51: Maximum discharge, that of Feb. 10, 1951; minimum, 2.4 cfs Sep*. 13, 1949.

Remarks.--Records fair prior to Feb. 10, good thereafter. Some small diversions for irrigation and domestic use. No regulation.

Rating table, water year 195O-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1 to Reb. 9)

1.4 

1.6 

1.8 

2.0 

2.3 

2.6

2.2

7.1

15

26

46

78

2.9 

3.2 

3.6 

4.0 

4.6

114

162

246

348

550

Discharge, In cubic feet per second, water year October 195O to September 19"51

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.

Ac-ft

Oct. ,

5.5

5,3.

5.3

5.7

9.5

8.2

7.0

11.5

14.5

30

36

31

24

21

17

15

14.5

16.5

19

21

21

20

18.5

18

27

34

38

59

67

£&

68

756.0

24.4

1.45

1.67

1,500

Nov.

100

135

132

111

94

80

66

*54

46

39

34

31

27

28

31

68

85

81

71

75

94

107

137 sai

198

145

165

157

121

104

-

2,823

94.1

5.60

6.25

5,600

Dec.

96

82

86

111

112

132

ISi

141

112

94

80

70

6O

 54

54

57

64

61

56

53

51

56

84

124

138

115

96

81

68

78

115

2,744

88.5

5.27

6.07

5,440

Jan.

126

172

2£2.

195

143

107

90

76

61

51

46

36

31

33

54

62

75

74

 67

62

98

109

99

94

92

95

66

72

55

45

35

2,703

87.2

5.19

5.98

5,360

Feb.

32

47

59

56

53

48

81

126

407

«536

287

162

108

87

76

67

62

60

59

68

66

62

59

55

52

5O

46

44

_

_

-

2,915

1O4

6.19

6.45

5,780

Mar.

42

4O

4O

42

41

39

37

36

37

36

5£

42

*51

55

69

1&

65

53

48

44

42

42

41

40

40

47

49

47

46

45

43

1,412

45.5

2.71

3.13

2,800

Apr.

40

39

36

35

34

34

32

30

27

26

24

23

22

21

19.5

19

18.5

18

18

17

16

15.5

15

*14.5

14

15.

14.5

20

16.5

14.5

-

686.5.

22.9

1.36

1.52

1,360

May

14

13

13

13.5

16.5

14

13.5

13.5

12.5

12.5

26

35

30

27

24

21

20

19

17

15.5

14.5

12.5

12.5

13

14

12

12

2O

*15.5

13

12

531.5

17.1

1.02

1.18

1,050

June

10.5

9.5

9.2

9.9

10.5

15.5

24

21

19

16.5

15

15

15

14

12.5

10.5

10.5

10.5

9.5

8.8

8.1

8.1

7.1

6.8

6.5

6.2

5.9

5.6

LL*

5.4

-

332 .O

11.1

0.661

0.73

659

July

5.4

5.1

5.4

5.4

5.4

^i

5.9

5.1

4.6

4.4

4.1

3.8

3.6

3.6

3.6

3.6

 3.8

3.8

3.8

3.8

3.8

4.1

3.8

5.8

3.6

3.6

3.6

3.6

3.6

3-L*

3.4

130.7

4.22

0.251

0.29

259

Aug.

3.2

3.2

3.2

3.0

3.0

3.0

2,8

2.8

2.8

3.0

3.2

3.2

3.2

3.2

3.0

2.8

2.8

2.8

3.O

3.0

3.0

3.0

3.0

2.8

2.8

3.0

3.4

5^4

5.1

*5.4

4.6

101.7

3.28

0.195

0.23

202

Sept.

3.8

3.8

3.8

3.8

3.6

3.6

4.1

4.6

4.1

4.1

3.8

3.6

3.6

3.8

3.6

3.8

3.8

4.1

4.4

4.4

4.1

4.1

4.1

4.8

6.8

5.6

4.8

5.1

6.2

9*9

133.7

4.46

0.265

O.3O

265

Calendar year 195O: Max 355 Mln 3.8 Mean 52.9 Cfsm 3.15 In. 42.74 Ac-ft 38.3OO

Water year 195O-51: Max 536 Mln 2.8 Mean 41.8 Cfsm 2.49 In. 33. SO Ac-ft 3O.28O

Peak discharge (base, 22O cfs). Nc

(3.35 ft)j Feb. 1O (2 a.m.) 736 cfs

v. 25 (3 a.m.) 224 cfs (3.15 ft); Jan. 3 (5:3O a.m.) 284 cfs 

5.03 ft).

* Discharge measurement made on this day.
132 SNOHQMISH RIVER BASIN

Tolt River near Tolt, Wash.

Location. La t 47e 41'45n , long. 12r»49<20", In 

bank 500 ft downstream from the Porks and 6

ttE^ sec. 31, T. 26 N., R. 8 E., on right 

iles northeast of Tolt.

Drainage area. 79.7 sq ml (revised).

Records available. August 1928 to January 1932, September 1937 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 348 ft above mean sea level (river-profile 

survey). Prior to Oct. 31, 1928, staff gage and Oct. 31, 1928, to Jsn. 3, 1932, waterstage recorder at site 350 ft upstream at datum 7.1 ft lower (by river-profile survey). 

Sept. 1 to Oct. 6, 1937, staff gage at present site at datum 1.64 ft higher.

Average discharge. 17 years (1928-31, 1937-51), 577 cfs.

Extremes . Maximum discharge during year, 16,800 cfs Feb. 9 (gage height, 12.54 ft), from 

rating curve extended above 3,800 cfs on basis of slope-area determlratlon of peak flow; 

maximum gage height, 12.92 ft Feb. 9 (drift on control); minimum discharge, 53 cfs Sept. 

22, 23 (gage height, 3.84 ft).

1928-32, 1937-51: Maximum discharge and gage height, those of Pet. 9, 1951; minimum discharge, that of Sept. 22, 23, 1951.

Remarks . Records excellent except those for periods of shifting control , which are good. 

Ilversion or regulation.

Rating tables, water year 195O-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

139

207

295

405

590

820

1,180

Discharge, In cubic feet per second, water year October 1950 to September 1951

8

0

2

5

8

1

4

8

Oct.

48

73

103

163

238

330

440

615

10 to Sept. 30

6.2

6.6

7.0

7.5

8.0

9.0

10.0

11.4

833

1 , 130

1,500

2,050

2,750

4,570

7,010

11,700

Day

1

2 

3

4

5

6

7

8

9

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 8m

In.

Ao-ft

Oct.

167

152 

139

158

656

682

662

950

1,140

2.730

1,030

640

508

444

396

358

340

556

975

695

520

436

390 

376

781

849

884

1,090

905

829

805

21,263

686

8.61

9.92

42,170

Nov.

1,390

1,400 

2,240

1,300

1,180

940

891

»690

575

516

464

424

396

379

376

556

488

436

396

520

1,210

1,660

1,660 

3.460

1,930

1,450

1,710

1,180

891

799

-

31,507

1,050

13.2

14.70

62,490

Dec.

685

610 

655

739

757

1,710

1,350

975

905

1,010

 1,010

940

721

640

727

940

1,050

817

733

1,110

1,350

1,130

2.600 

2,530

2,040

1,130

1,130

1,180

1,130

1,160

975

34,459

1,112

14.0

16.08

68,350

Jan.

877

1,660 

1,600

1,090

877

763

680

650

610

575

542

529

842

856

663

*757

705

630

570

529

595

56O

512 

1,310

2,050

2.280

1,130

805

695

630

575

27,347

882

11.1

12.76

54,240

Feb.

556

757 

751

645

585

547

1,470

3,070

»11.400

6,870

3,320

1,620

1,260

1,010

940

817

763

733

695

739

67O

610

565 

534

500

468

432

416

_

_

-

42,943

1,534

19.2

20.04

85 , 180

Mar.

390

379 

372

368

354

334

320

311

301

289

282

354

640

565

975

891

630

534

490

575

710

650

560 

542

560

733

695

600

610

615

547

16,176

522

6.55

7.55

32,080

Apr.

529

585 

745

842

733

655

727

615

536

506

547

793

898

757

705

745

757

670

560

472

420

396

390 

404

 440

456

480

630

575

444

-

18,016

601

7.54

8.41

35,730

May

379

344 

372

536

705

625

640

556

547

705

1.820

905

635

534

500

595

727

570

480

468

506

585

630 

675

705

492

460

520

492

 436

396

18,544

598

7.50

8.65

36,780

June

390

396 

400

393

368

456

1.010

650

516

472

440

460

448

436

416

372

340

320

296

286

279

270

264 

250

241

235

222

219

211

206

-

11,264

375

4.71

5.26

22,340

July

204

191 

188

184

172

174

168

159

154

148

143

 141

141

137

131

127

121

119

117

114

108

107

103

105

105

103

101

100

100

97

Si

4,155

134

1.68

1.94

8,240

Aug.

92

90 

89

87

86

84

83

81

81

80

80

79

79

77

76

74

73

73

73

72

70

68

68 

66

65

65

69

*97

89

119

103

2,488

80.3

1.01

1.16

4,930

Sept.

80

72 

68

64

60

61

68

112

101

83

80

74

70

65

61

60

59

58

58

55

54

53

53 

60

246

198

119

150

428

1.290

-

4,060

135

1.69

1.89

8,O5O

Calendar year 1950: Max 5,790 Mln 1O4 Mean 818 Cfsm 1O.3 In. 139.26 Ae-ft 592, OOO

Water year 195O-51: Max 11,400 Mln 53 Mean 636 Cfsm 7.98 In. 1O$.36 Ac-ft 460,600

Peak discharge (base. 3.400 cfs).--0ct. 10 f7:3O a.m.l 4,260 cfs (8.87 ft); Nov. 24 (2:3O a.m.)

7,010 cfs (10.00 ft); Dec. 23 (4:3O p.m.) 5.22O cfs (9.28 ft)j Jan. 26 (2:3O a.m.) 3,68O cfs (8.54

ft); Feb. 9 (10:30 a.m.) 16.8OO cfs (12.54 ft). 

* Discharge measurement made on this day. 

Note. Shifting-control method used Feb. 9 to May 10.
SNOHOMISH RIVER BASIN 133

Snoqualmle River near Tolt, Wash.

Location.--Lat 47°39 1 55", long. 121°55'30", in sec. 9, T. 25 N., R. 7 E., on left bank 

100 ft downstream from highway bridge, 1 mile northwest of Tolt, and 2 miles downstream from Tolt River.

Drainage area. 605 sq mi.

Records available. October 1928 to September 1951.

Oagg. Water-stage recorder. Datum of gage is at mean sea level, unadjusted. Prior to

~l5ec. 20, 1933, chain or wire-weight gage on bridge, 100 ft upstream at da tun-, 42.96 

ft higher. Dec. 20, 1933, to Sept. 30, 1939, water-stage recorder at presert site 

at datum 42.96 ft higher than present datum. Auxiliary water-stage recorder l£ 

miles upstream from base gage.

Average discharge.--23 years, 3,696 cfs.

Extremes. Maximum discharge during year, 52,200 cfs Feb. 10 (elevation, 59.18 ft); minimum, 255 cfs Sept. 22; minimum daily, 416 cfs Sept. 22.

1929-51: Maximum discharge, that of Feb. 10, 1951; maximum elevation recorded, 

59.9 ft Nov. 13, 1932; minimum discharge, 239 cfs Aug. 21, 1945, but may have been 

less during period of faulty intake action Sept. 13 or 14, 1949; minimum dally discharge, 396 cfs Sept. 24, 1938.

Remarks. Records good except those for periods of shifting control or no gage-height 

record, which are fair. Low flow diverted for operation of powerplant at Sroqualmie 

Falls but returned to river above station. Some pondage at Snoqualmie Falls and 

some diurnal fluctuation caused by powerplant.

Rating tables, water year 1950-51, except periods of shifting control (elevation, 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 9 Feb. 1O to Sept. 30

44.6

45.0

45.5

46.0

46.5

47.0

48.0

945

1,330

1,880

2,520

3,280

4,130

6,080

49.0 

5O.O 

51.0 

52.0 

53.0 

54.5 

56.0

8,360

11,000

13,900

16,900

19,900

24,600

31,100

44.8

45.2

45.6

46.0

46.5

47.0

47.5

400

640

96O

1.36O

1,970

2,710

3,570

48.0 

49.0 

5O.O 

51.0 

52.0 

54.0 

56.0 

5S.6

4,56C

6,910

9.66C

12,60C

15.60C

22.60C

31,100

47,400

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3 

4

5

6

7 

8

9

10

11 

12

13

14

15

16 

17

18

19

2O

21

22 

S3 

24 

25

26 

27

28

29

30

31

 total

Mean

Cf sin

In.

Ac-ft

Oct.

1,210 

1,120

1.020 

1,040

1,82O

3,52O

3,61O 

4,680

6,730

12.5OO

15.6OO 

5,660

3,950

3,280

3,120

2,660 

2,380

2,590

5, -660

6,080

4,220

3,280 

2,810 

2,450 

3,120

4,680 

4,31O

6,290

5,870

4,780

4,680

132,720

4,281

7.08

8.16

263,200

Nov.

5,260 

8,360

9,630 

8,860

8.12O

6,080

6,080 

*4,780

3,950

3,360

3,040 

2,740

2,450

2,380

2.520

2,960 

3,120

2,880

2,520

2,740

5,660

8,120 

9,630 

16.900 

15, l6o

15,4OO 

12,700

1O,2OO

7,640

6,290

"

199,270

6,642

11.0

12.25

395,200

Dec.

5,460 

4, 580

4.310 

4,960

5,260

7,180

9,370 

7,410

6,080

6,510

 6,730 

7,880

6,080

4,870

4,58O

5,460 

6,290

6,290

5,06O

6,080

8,610

7,410 

13,6OO 

16,900 

17.800

11,OOO 

8,120

7,41O

6,95O

7,41O

a6,9OO

232,550

7,502

12.4

14.30

461,300

Jan.

a6,300 

a7,880

all.OOO 

a8,4OO

86,500

5,460

4,490 

4.13O

3,780

3,440

3,360 

5.120

3,520

5,060

4,680

4,4OO 

4,580

4,040

 3,520

3,280

3,780

3,86O 

3,440 

4,320 

8,610

11.800 

7,640

5,460

4,310

3,780

3,36O

161,300

5.2O3

8.60

9.92

319,900

Feb.

3,120 

3,520

4,490 

4,040

3,610

3,200

4,910 

11,5OO

29,600

 47.400

34,500 

22,900

14,400

9,370

7,430

6,40O 

5,67O

5,100

4,770

4,880

4,460

4,050 

3,760 

3,480 

3,210

2,870 

 2,790

2. 710

-

-

"

258,140

9,219

15.2

15.87

512,000

Mar.

2,55O 

2,400

2,320 

2,320

2,250

 2,110

2,110 

2,04O

1,970

1,900

1.840 

1,900

2,790

3,12O

4,230

5.790 

4,150

3,480

3,040

3,120

3,76O

3,860 

3,300 

2,960 

2,96O

3,660 

4,050

3,570

3.30O

3,390

3,120

93,360

3,012

4.98

5.74

185, 20O

Apr.

2,870 

3,040

3,760 

4,660

4,560

4,250

4,350 

4,150

3,660

3,3OO

3,300 

3,950

5.310

5,100

4.77O

4,660 

4,880

4,660

4,150

3,480

3,040

2,87O 

2.710 

2,710 

 2,790

2,960 

3,04O

3,760

4,050

3,3OO

-

113,990

3,800

6.28

7.01

226,100

May

2,870 

2,550

2.480 

2,870

4,460

4,56O

4,560 

4,350

3,95O

4,990

1O.80O 

9,950

6,280

4,990

4,460

4,660 

5,910

5,670

4,560

4,150

4,35O

5, 1OO 

6,150 

6,280 

6,91O

5,210 

4,560

4,460

4,350

 3,760

3,390

153,590

4,955

8.19

9.44

304,600

June

3,3OO 

3,390

3,570 

3,760

3,570

3,950

5.440 

5.1OO

4,35O

4,150

4,05O 

3,950

3,95O

4,O50

4,350

4,050 

3,570

3,39O

3,210

3,120

3,O40

2,960 

2,870 

2,870 

2,870

2,710 

2,630

2,550

2.48O

2,480

-

105,730

3,524

5.82

6.50

209,700

July

2.400 

2,320

2,320 

2,25O

2,040

1,900

1,840 

1,71O

1,59O

1,530

1,530 

1,450

*1,45O

1,470

1,390

1,380 

1,340

1,260

1,200

1,060

906

854 

969 

933 

830

830 

806

774

766

822

750

42,670

1,376

2.27

2.62

84.630

Art?.

734 

682

682 

682

675

696

640 

605

522

570

552 

564

577

540

510

522 

528

499

504

504

482

488 

494 

494 

472

477 

570

 570

647

661

790

17,933

578

0.955

1.10

35.57O

Sept.

619 

552

516 

5O4

482

460

477 

612

647

584

528 

570

522

494

482

444 

46O

466

494

455

455

138 

438 

626

1,240 

782

682

1,460

4,660

21,565

719

1.19

1.33

42.770

Calendar year 1950: Max 24 400 Mln 650 Mean 5,197 Cfsm s.59 1°. 116.60 Ac-f: 3,763,OOO

Water year 1950-51: Max 47,400 Mln 416 Mean 4,20O Cfsm 6.94 In- 94.24 Ac-f" 3,04O,OOO

Peak discharge (base. 16.000 cfsl. Oct. 11 (1 to 2 a.m.) 19,300 cfs (52.77 ft); Nov. 24 (6 to 

7 p.m.) 19,600 cfs (52.86 ft); Dec. 25 (12 m. to 1 p.m.) 19,000 cfs (52.70 ft); Feb. 10 (3 a.m.) 

52,20O cfs (59.18 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 streams.

Note. Shifting-control method used Feb. 11 to May 1O.
134 SNOHOMISH RIVER BASIN

Pilchuck River near Granite Palls, Wash.

Location.--Lat 48°03'15", long. 121°57'25", in SE| sec. 30, T. 30 N., R. 7 E., on right 

bank 200 ft upstream from road bridge and 2 miles south of Granite Palls.

Drainage area.--52.5 sq mi (revised).

Records available. May to October 1911, January 1943 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 340 ft (from topographic map). Prior 

"~to Oct. 13, 1911, staff gage at approximately same site, at different datum. Jan. 14,

1943, to July 9, 1946, several staff gages within 150 ft of present site at different

datum.

Average discharge. 8 years, 346 cfs.

Extremes. Maximum discharge during year, 6,760 cfs Feb. 9 (gage height, 8.56 ft), from 

rating curve extended above 2,400 cfs on basis of slope-area determination of peak 

flow; minimum, 28 cfs Aug. 21-27, Sept. 6, 7, 23.

1911, 1943-51: Maximum discharge observed, 7,930 cfs Oct. 25, 1945 (gage height, 

10.28 ft), from rating curve extended above 4,100 cfs; minimum, that of Aug. 21-27, 

Sept. 6, 7, 23, 1951.

Remarks. Records good. City of Snohomish diverts about 5 cfs above station for municipal use. Slight regulation at low flow; cause unknown.

Rating table, water year 1950-51 (gage height. In 

feet, and discharge, In cubic feet per second)

1.9 

2.1 

2.3 

2.5 

2.8 

3.1

24

41

64

92

149

225

3.5 

4.0 

4.5 

5.0 

6.O 

7.5

358

588

878

1,230

2,230

4,470

Discharge, In cubic feet per second, water year October 1950 to Septerher 1951

Day

1

3

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

33

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

84

76

Ifi

76

707

864

407

588

394

1.280

507

297

225

184

160

143

128

184

 281

217

172

145

130

124

311

336

358

512

390

428

478

1O,256

331

2O, 340

Nov.

572

407

1,040

626

583

398

351

277

234

205

184

167

156

151

T54

469

407

332

274

362

572

704

507

1,150

848

665

1.250

716

487

402

-

14,630

488

29,020

Dec.

354

311

321

*321

318

616

57S

432

478

788

546

428

332

290

340

428

552

362

336

459

487

437

848

1,010

930

497

610

734

643

848

648

16,282

525

32,290

Jan.

567

1,050

1,230

722

512

415

358

*325

294

274

268

258

6Q9

512

716

552

497

402

343

314

497

473

382

934

1,63O

1.640

665

432

336

294

261

17,762

573

35,230

Feb.

243

390

370

307

281

258

664

1,310

4.580

3,690

1,920

848

562

452

428

386

351

570

566

497

432

554

511

287

277

246

231

217

-

-

20,408

729

40,480

Mar.

203

190

190

203

190

172

165

160

15S

151

145

271

*848

578

878

746

478

586

566

459

492

502

420

390

428

567

552

441

502

526

450

12,207

394

24,210

Apr.

390

424

482

473

398

343

354

304

271

258

277

547

343

294

284

284

265

234

197

*174

158

154

151

160

167

160

165

225

258

197

-

8,189

273

16,240

May

15S

141

145

187

281

217

261

225

194

225

845.

521

311

246

225

235

257

205

ISO

172

180

187

194

 194

190

145

145

145

165

145

156

7.O25

227

15,930

June

130

130

128

122

115

194

3iZ

255

184

156

141

134

158

152

122

111

102

95

89

86

85

78

76

74

72

70

67

64

60

|9

5,614

120

7,170

July

58

57

56

56

54

56

54

53

*52

50

50

48

45

45

45

44

44

44

43

42

40

40

59

59

40

59

38

36

56

56

M

1,413

45.6

2,800

Aug.

34

35

34

34

35

*52

31

32

53

55

34

35

52

31

31

50

52

55

52

30

30

28

28

28

50

41

56

40

11

1,011

52.6

2,010

Sept.

55

52

50

50

30

ia34

216

74

59

54

41

59

59

38

33

32

33

35

35

55

35

30

54

206

39

59

*64

172

Tig

2,585

79.4

4,750

Calendar year 1950: Max 3,100 Mln 41 Mean 398 Ac-ft 288, OCX}

Water year 1950-51: Max 4,380 Mln 28 Mean 316 Ac-ft 228,400

Peak discharge (base. 2.500 efs). Jan. 26 (2 a.m.) 2,870 cfs (6.49 ft); Feb. 9 (4t50 p.m.) 6,760 

efs (8.56 ft).

* Discharge measurement made on this day.
SNOHOMISH RIVER BASIN 135

Little Pilchuck Creek near Lake Stevens, Wash.

Location. La t 48°02'00", long. 122°03'00", in NW^NW^ sec. 4, T. 29 N., R. 6 £., on right 

 bank l£ miles northeast of Lake Stevens and 2 miles upstream from Stevens C^eek.

Drainage area. 12.8 sq mi.

Records available. June 1946 to September 1951.

Gage. Water-stage recorder and wooden control. Altitude of gage is 200 ft (from topographic map).

Average discharge. 5 years, 33.0 cfs.

Extremes.--Maximum discharge during year, 225 cfs Jan. 2, 3 (gage height, 4.00 ft); minimum, 1.0 cfs Aug. 18, 24-26 (gage height, 0.70 ft).

1946-51: Maximum discharge, 322 cfs Nov. 11, 1947; maximum gage height, 4.65 ft 

Feb. 26, 1950; minimum discharge, that of Aug. 18, 24-26, 1951.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Several small diversions above station for farm use.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge. In cubic feet per second)

0.69

.9 

1.1 

1.3 

1.5 

1.7

1.0

2.9

6.6

13

22

30

2.0 

2.3 

2.6 

3.0 

3.5 

4.0

46

60

79

112

165

225

Discharge, In cubic feet per second, water year October 1950 to Septemberl9El

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.

Ao-ft

Oct.

177

l!7 

1.9

5.9

5.0

3.0

12.5

8.5

17.5

13

7.4

5.7

4.7

4.0

*3.8 

4.0

4.7

5.7

6.1

5.7

5.0

4.7

4.7

8.8

8.2

11

15.5

16.5 

17

17

232.6

7.50

0.586

0.68

461

Nov.

25

34

46 

42

43

37

31

25

20

17

15

14

12.5

11.5

13.5

60 

72

68

52

52

50

44

47

68

88

85

154

143

98 

91

-

1,558.5

52.0

4.06

4.53

3,090

Dec.

115

93

74 

58

47

44

*56

53

52

70

62

53

44

39

44

52 

65

58

53

48

44

43

54

68

93

74

59

59

50 

140

154

2,018

65.1

5.09

5.86

4,000

Jan.

134

193

*

108

75

58

48

*41

38

36

32

^§

72

105 

117

113

95

80

140

148

111

92

74

77

62

48

a42 

a38

a34

2,628

84.8

6.62

7.64

5,210

Feb.

a30

a35

40 

38

36

34

51

52

96

142

134

98

69

54

52

47 

46

73

63

81

68

56

46

44

54

48

40

*36

-

1,663

59.4

4.64

4.83

3,300

Mar.

34 

32

30 

39

42

36

32

30

29

27

105

123

165

m96

79

71

72

99

101

84

70

75

67

54

48 

48

46

2,121

68.4

5.34

6.16

4,210

Apr.

38

33

29 

26

24

22

20

18

17

15

14

*13

12.5

12.5

11.5

11 

10

9.5

9.5

8.8

8.2

7.6

6. 6

77!

7.1

6.8

6.8

9.2

10 

8.8

-

432.5

14.4

1.12

1.26

858

May

7.1

6.6 

6.4

7.1

6.6

6.8

7.1

6.6

6.6

34

*20

16.5

14 

12.5

11.5

9.9

8.2

7.6

6.8

6.4

5.9

6.4

5.9

5.0

5.0

5.0 

4.7

til

322.4

10.4

0.812

0.94

639

June

3.6

3.5 

3.5

3.5

3.8

5.2

5.2

4.2

3.5

3.2

3.0

2.9

2.8

2.4

2.3 

2.2

2.2

2.1

1.9

1.8

1.8

1.8

1.7

1.9

1.7

1.6

1.5

H81.6

2.72

0.212

0.24

162

July

1.5

 Ul 

1.8

1.7

1.7

1.6

1.5

1.5

1.5

1.3

1.3

1.3

1.3

1.3

1.3 

1.3

1.4

1.3

1.3

1.2

T75

1.2

1.3

1.3

1.3

1.2

1.2

1.2 

1.3

1.2

42.7

1.38

0.108

0.12

85

Aug.

1.3

1.3 

1.3

1.3

 1.2

1.1

1.2

1.2

1.3

1.3

1.2

1.2

1.2

1.3

1.3 

1.1

1.1

1.1

1.1

1.2

1.1

1.1

1.1

1*0

1.0

1.3

2.3

T75

1.9

1.7

39.9

1.29

0.101

0.12

79

Sept.

1.6

1.4 

1.3

1.3

1.3

1.7

T7§

1.6

1.5

1.5

1.5

1.4

1.4

1.3 

1.3

1.4

1.4

 1.4

1.4

1.4

1.5

1.7

2.9

2.3

2.8

2.5

2.5 

2.9

-

52.9

1.76

0.138

0.15

105

Calendar year 1950: Max 277 Mln 1.5 Mean 36.2 Cfsm 2.83 In. 38.34 Ao-f; 26,180

Water year 1950-51: Max 199 Mln 1.0 Mean 30.7 Cfsm 2.40 In. 32.53 Ao-f: 22,200

Peak discharge (base. 150 eta).--Nov. 27 (5 p.m.) 

ofs (3.57 ft); (11 p.m. Jan. 2 to 1 a.m. Jan. 3) 225 

ofs (3.41 ft); Mar. 16 (12 to 2:30 a.m.) 187 cfs (3.

, 170 cfs (3.56 ft); Dec. 30 (7:30 to 9 p.m.) 170 

25 cfs (4.00 ft); Jan. 22 (12:30 to 6 a.m.) 154 

.3.70 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.

288995 O - 54 - 10
136 SNOHOMISH RIVER BASIN

Snohomish River at Snohomish, Wash.

Location. --Lat 47°54'32", long. 122°06'00", in SE£ sec. 13, T. 28 N., R. 5 E., on downstream end of drawrest of bridge No. 205 on State Highway 1A in Snohemish.

Drainage area . --1 .720 sq mi, approximately (revised).

Records available. February 1941 to September 1951 (high-water discharges only). Highwater elevations prior to 1932 and high-water profiles on flood peaks since that time 

are available at the Seattle office of Corps of Engineers.

Page. Water-stage recorder. Datum of gage is 10 ft below mean sea level, datum of 1929. 

Auxiliary water-stage recorder 2j miles downstream from base gage.

Extremes . Maximum discharge during year, 153,000 ofs Feb. 10 (gage height, 30.12 ft, 

backwater from tide ) .

1941-51: Maximum discharge, that of Feb. 10, 1951.

Maximum stage known, 35 ft at base gage and 31 ft at auxiliary gage in 1906, from 

flood profile furnished by Corps of Engineers.

Remarks . Records good except those for periods of no gage-height record, which are fair. 

Large diurnal fluctuation because of tides. No appreciable regulation or diversion at 

stages for which discharges are published.

Revisions (water years). W 1152: 1948 (M).

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Oct.

_

-

-

-

-

11,900

11,400

14,300

16,600

30,900

33,800

18,700

11,900

-

-

.

_

-

12,700

15,100

11,600

-

-

-

-

13,200

12,600

16, -600

15,900

13,200

12,700

Nov.

12,300

18,800

20,600

25,400

25,000

18,900

16,300

13,500

11,100

-

_

-

-

-

-

_

-

-

-

-

12,200

19,000

21,400

34,800

35,300

43,100

37,900

32,900

23,400

18,500

-

Dec.

16,100

13,800

12,100

11,500

11,300

13,900

18,700

17,200

14,500

17,200

17,000

19,000

16,200

13,600

12,800

14,300

16,300

17 , 600

14,200

16-, 500

23,500

22,100

28,100

41,100

45,500

35,000

27,000

21,000

19,000

21,000

19,000

Jan.

17,000

19,000

22,000

19,000

16,000

13,000

11,000

10,000

_

-

_

-

_

11,400

12,200

11,400

11,700

11,000

-

-

_

10,400

_

10,200

23,200

31,900

25,800

16,900

12,300

10,200

Peak discharge (base, 40,000 cfs).

45.500 cfs (25.93 ft); Dec. 25 (9 a.

Feb.

.

10,800

10,600

.

10,300

22,200

48,500

112,700

119,700

71,300

46,700

32,300

23,600

19,400

16,200

15,300

13,700

14,000

13,200

11,400

10,100

-

_

_

_

.

_

-

Har.

_

_

_

_

-

_

_

.

_

-

'_

_

_

_

10,900

16,100

12,400

_

-

10,500

11,600

10,500

-

10,000

10,500

_

_

-

Apr.

_

_

10,900

12,600

13,300

12,000

12,400

12,500

11,200

10,100

_

11,100

14,300

15,300

14,500

14,100

14,700

14,000

12,900

10,900

_

_

_

-

_

.

10,400

11,600

-

May

.

_

_

-

11,600

13,200

13,500

13,300

11,800

13,900

25,800

30,600

20,100

14,900

12,500

13,100

16,000

16,900

14,100

12,400

12,400

14,000

17,600

18,600

18,000

15,000

14,000

13,000

12,000

11,000

10,000

June

_

_

10,500

12,000

11,000

11,500

13,000

15,000

13,000

13,000

13,000

12,000

12,000

13,000

14,000

15,000

13,000

12,000

11,000

10,500

10,200

10,000

_

-

_

_

_

_

_

-

July Aug. Sept.

12,500

 Oct. 10 (10 p.m.) 43,600 cfs (24.66 ft)j N)v. 26 (8 a.m.) 

m. j 49,000 cfs 126.54 ft); Feb. 10 (7:30 p.m ) 153,000 cfs (30.12

ft).
SNOHOMISH RIVER BASIN 137

Quilceda Creek near Marysville, Wash.

Location. La t 4d°06'20", long. 122°09i40", in NE^NEj sec. 9, T. 30 N., R. 5 E., on right 

bank 300 ft downstream from Middle Fork and 3-| miles north of Marysville.

Drainage area.--15.7 sq mi.

Records available. June 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 40 ft above mean sea level (from topographic map}.

Average discharge.--5 years, 25.8 cfs.

Extremes. Maximum discharge during year, 144 cfs Mar. 13 (gage height, 5.51 ft); minimum, 2.2 cfs July 16.

1946-51: Maximum discharge, 155 cfs Feb. 22. 1949; maximum gage height, 5.72 ft 

Feb. 26, 1950; minimum discharge, that of July 16, 1951.

Remarks. Records good except those for periods of shifting control, which are fair. 

Several diversions above station for irrigation and domestic use. No regulation.

Rating tables, water year 195O-51, except periods of shifting control (gage height, 

in feet, and discharge, in cubic feet per second)

Oct. 1 to Jan. 1 Jan. 2 to Sept. 30

1.6 

1.8 

2.0 

2.3 

2.6

4.4

7.8

12

19

26

3.0 38

3.5 53

4.0 72

4.5 92

1.6 

1.8 

2.0 

2.3 

2.6

2.2

5.8

10.5

19

28

3.0 42

3.5 60

4.0 80

5.2 130

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Nean

Ac- ft

Oct.

4.9

4.7

4.4 579

13

S-.2

6.7

23

14

26

15

12 

10.5

9.6

8.8

8.6

8.4

11.5

13

 13.5

12

10.5

9.8

10.5

22

18.5

21

25 

22

21

19.5

412.5

13.3

818

Nov.

32 

33

42

33

28

24

22

21

19.5

19

18.5

M18.5

23

62

52

46

38

41

35

34

38

48

58

52

74

60 

48

54

-

1,108.5

37.0

2,200

Dec.

68 

54

46

40

3*

36

44

 42

42

52

48

42 

36

35

41

44

60

50

46

41

38

38

46

53

54

47

41

42

37

86

72

1,455

46.9

2,890

Jan.

70 

116

104

84

66

52

45

41

37

37

37

31 

30

29

74

 98

104

82

72

66

126

108

78

70

60

58

47

37

31

26

22

1,938

62.5

3,840

Feb.

22 

42

42

41

38

37

60

52

80

86

80

60 

49

43

43

38

41

56

51

68

52

43

36

37

51

46

38

33

-

-

1,365

48.8

2,710

Mar.

30 

21

28

47

45

 41"35

34

33

31

30

74

150

112

112

104

80

66

58

56

56

80

74

60

52

54

46

40 

36

36

36

1,742

56.2

3,460

Apr.

ft

28

25

23

22

21

19

*19.5

19

18

17.5 

16.5

16.5

16

15

14.5

14.5

14.5

14

13.5

13.5

13

12.5

1275

12.5

12.5

15.5 

14

13

-

527.0

17.6

1,050

May

13

12

11.5

11.5

11.5

11

12

12

11.5

11.5

39

28 

22

19

16.5

15

14.5

13.5

13

12

11.5

 10.5

10.5

10.5

10.5

10

10

10 

9.7

9.2

8/L

421.1

13.6

835

June

9.0

8.7

7.7

9.4

9.0

8.7

10^5

9.4

10

8.2

8.2

8.2

8.0

7.2

6.7

6.7

6.5

6.5

6.0

5.8

5.4

5.2

5.0

5.0

4.8

4.8

4.6

4.4 

±£

4.2

-

208.0

6.93

413

July

4.2

4.2

 4.4

5^2

4.8

4.8

4.4

4.4

4.4

4.0

3.8

3.5 

3.5

3.5

3.5

3.2

3.3

3.3

3.2

3.2

3.0

3.0

2.8

2.8

3.2

3.2

2.8

2.8 

3.0

3.0

3.0

111.4

3.59

221

Calendar year 1950: Max 128 Bin 3.5 Mean 27.5 Ac-ft 19,930

Aug.

2,8 

3.0

3.3

3.2

3.0

3.0

2.8

2.8

3.2

3.3

3.5

3.3 

3.3

3.2

3.2

3.2

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.2

4.4

 6^3 

4.6

4.8

4.2

104.6

3.37

207

Sept.

4.O 

4.0

3.8

3^7.

3.7

4.0

6.0

1^1

4.8

4.6

4.8

4.6 

4.8

4.6

4.2

4.0

3.8

4.0

4.2

4.2

4.2

4.0

3.8

 4.2

5.8

5.0

4.6

5.2 

5.6

6.0

-

137.6

4.59

273

Water year 1950-51: Max 130 Mln 2.8 Mean 26.1 Ac-ft 18,92O

Peak discharge (base. 110 cfs). Jan. 2 (1 p.m.) 125 cfs f5.21 ft): Jan. 16 

(5.02 ft); Jan. 21 (4 p.m.) 134 cfs (5.27 ft); Mar. 13 (6:3Op.m.) 144 cfs (5. 

» Discharge measurement made on this day. 

Note. Shifting-control method used Dec. 1-30, July 17 to Sept. 3O.

(11 p.m.) 121 cfs 

51 ft).
138 STILLAGUAMISH RIVER BASIN

South Pork Stillaguamish River near Granite Palls, Wash.

Location. Lat 48°06'10", long. 121°56'40", in SW^NW^ sec. 8, T. 30 N., R. 7 E., on right

 bank a quarter of a mile upstream from bridge, lj miles upstream from Canyon Creek 

and 2 miles northeast of Granite Palls.

Drainage area.--119 sq mi.

Records available.---July 1928 to September 1951.

Gage. Water-stage recorder. Datura of gage is 350 ft (from topographic nrap). Prior to 

"Tug. 31, 1928, staff gage at site 8 miles upstream at different datum. Aug. 31 to 

Sept. 30, 1928, staff gage at present site and datum.

Average discharge. 23 years, 1,030 cfs.

Extremes.--Maximum discharge during year, 36,800 cfs Feb. 9, 10 (gage height, 18.10 ft),

 from rating curve extended above 9,000 cfs; minimum, 99 cfs Sept. 24 (gage height, 3.3d 

ft)1928-51: Maximum discharge, that of Feb. 9, 10, 1951; maximum gage height, 19.7 ft 

Feb. 26, 1932, from graph based on gage readings; minimum discharge, £5 cfs Sept. 23, 

24, 1938; mialmum gage height, 2.99 ft Aug. 19-21, 1941.

Remarks.--Records excellent except those for period of shifting control end those above 

lUTTTOO cfs, which are good. No diversion or regulation.

Revisions (water years). W 902: 1939.

Rating tables, water year 1950-51, except period of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sect. 30

3.7 

4.0 

4.3 

4.6 

5.0

219

320

455

620

860

5.5 

6.0 

7.0 

8.0

1,240

1,700

2,820

4,250

Note.--Same as following 

table above 8.0 ft.

3.3 

3.5 

3.7 

4.0 

4.3 

4.6 

5.0 

5.5

94

131

175

260

370

505

725

1,080

6.0

7.0

S.O

9.0

10.0

12.0

14.0

15.6

1,520

2,720

4,250

5,990

8,000

13,000

19,500

25,400

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3 

4

5

6

7

8

9

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.

Ac-ft

Oct.

313

277

'291

2,470

2,700

2,340

3,060

1,850

8.100

2,220

1,200

867

740 

620

516

450

952

1,600

 1,080

776

626

522

485 

2,420

1,960

2,180

2,640

1,700

1,560

1,510

48,275

1,557

13.1

15.09

95,750

Nov.

1,910

2,010

3,020 

2,500

2,490

1,460

1,240

923

758

656

566

490

440 

455

1,200

836

644

510

1,060

1,960

2,230

1,650

5^220

3,800

4,320

2,120

1,380

1,080

-

53,628

1,788

15.0

16.76

106,400

Dec.

888

752

722 

 704

680

2,140

1,960

1,330

1,760

3,780

2,400

1,750

1,200 

965 

1,420

1,800

2,760

1,560

1,470

3,480

3,080

2,820

4,980

5.540 

3,970

1,750

2,120

1,900

1,700

2,520

1,560

65,461

2,112

17.7

20.46

129,800

Jan.

1,200

2,220

2,280 

1,240

923

764

686

668

 596

572

544

516

1/465 

1,160 

1,700

1,160

965

758

656

584

867

704

578

1,980 

7.170

5,680

1,900

1,160

881

758

656

42,986

1,387

11.7

13.43

85,260

Feb.

614

1,040

1,040 

776

680

602

3,050

7,540

25,000

25.400

8,080

2,930

1,730 

1,280 

1,200

1,040

902

860

804

930

777

660

604

577

550

495

455

432

-

-

90,048

3,216

27.0

28.14

178,600

Mar.

414

390

382 

382

382

370

350

342

330

320

309

456

 1,380 

930 

2.070

1,570

930

732

671

860

1,120

1,000

804

732

784

860

832

725

860

965

825

23,117

746

6.27

7.22

45,850

Apr.

777

930

1,200 

1,380

1,280

1,160

1,280

1,120

965

895

930

1,330

1.620 

1,470 

1,380

1,380

1,420

1,280

1,000

 804

689

638

610

'632 

701

732

784

1,200

1,200

860

-

31,647

1,055

8.87

9.89

62,770

May

683

643

1,380 m

1,240

1,330

1,120

1,000

1,330

5.890

2,070

1,240 

1,000 

916

1,120

1,380

1,120

930

895

965

1,200

1,520

 1,520 

1,520

965

867

874

867

725

638

36,443

1,176

9.88

11.39

72,280

June

643

695

784 

811

732

790

1.080

916

777

797

777

725

732 

784 

874

797

695

632

594

572

566

582

560

550 

545

530

500

485

485

475

-

20,485

683

5.74

6.40

40,630

July

455

437

437 

414

354

316

323

278

 260

278

292

288

295 

292 

267

254

251

248

230

210

196

191

191

191 

191

185

175

173

170

166

161

8,169

264

2.22

2.55

16,200

Aug.

159

157

154 

152

150

144

139

 135

135

137

137

135

129 

123 

122

120

120

120

118

118

118

120

122

118 

112

110

TTs?

196

157

157

178

4,204

136

1.14

1.31

8,340

Sept.

144

127

120 

116

114

114

127

1,000

346

245

207

175

152 

139 

131

127

123

122

120

114

110

107

103

108 

858

424

264

»371

1,120

5.930

11,258

375

3.15

3.52

22,330

Calendar year 1950: Max 9,650 Mln 148 Mean 1,472 Cfsra 12.4 In. 167. £3 Ac-ft 1,066,000

Water year 1950-51: Max 25,400 Mln 103 Mean 1,194 Cfsra lo.o In. 136.16 Ac-ft 864,200

Peak discharge (base. 8.700 efsK--Oct. 10 (6 a.m.) 14,200 cfs (12.39 ft); Nov. 24 (3 a.m.) 11,800 

cfs (11.61 ft); Dec. 24 [9 p.m.) 9,100 cfs (10.48 ft)j Jan. 26 (12 a.m.) 11,600 cfs (11.46 ft)j Feb. 

9 (ll p.m.) 36,800 cfs (18.10 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Feb. 11 to Mar. 16.
STILLAGUAMISH RIVER BASIN 139

South Pork Stillaguamish River above Jim Creek, near Arlington, Wash.

Location. Lat 48°09'55", long. 122°03'55", in SW£ sec. 17, T. 31 N., R. 6 E., on right 

bank ij miles upstream from Jim Creek and 3 miles southeast of Arlington.

Drainage area.--199 sq mi.

Records available. October 1936 to September 1951.

Gage. Water-stage recorder. Datum of gage is 80.00 ft above mean sea level, datum of 

1929. Prior to Dec. 31, 1936, staff gage at same site and datum.

Average discharge. 15 years, 1,540 cfs.

Extremes. Maximum discharge during year, 27,700 cfs Feb. 9 (gage height, 27.26 ft); minImum, 110 cfs Sept. 23, 24 (gage height, 10.77 ft).

1936-51: Maximum discharge, 29,900 cfs Oct. 25, 1946 (gage height, 26.07 ft), from 

rating curve extended above 16,000 cfs; maximum gage height, that of Feb. 9, 1951; minimum discharge, that of Sept. 23, 24, 1951.

Remarks.--Records good except those for periods of shifting control, which are fair. No 

diversion or regulation.

Discharge, In cubic feet per second, water year October 1950 to September 19E1

Day

1

2

Z

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

20

21

2£

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsrn

In.

Ac-ft

Oct.

456

401

358.

3?5

2,740

3,920

3.O7O

4.26O

2,460

10,400

3,680

1,860

1,360 

1,O70

934

794

702

«1,23O

2,200

1,600

1,110

9O6

773

695

3,180

2,580

2,790

3,520

2,460

2,140

2,260

66,286

2,138

10.7

12.39

131,500

Nov.

2,790

3,070

4,430

3,520

3,850

2,O80

1.8OO

1,320

1,07O

934

822

734

677

646

1,800

1,230

1,020

822

1.32O

3,000

3,220

2,430

8,850

6,940

5,380

6.86O

3,300

2,320

1,960

-

78,821

2,627

13.2

14.73

156,300

Dec.

1,700

1,460

1,410

1,320

1.280

3,140

3,070

*2,260

2.7OO

5,920

3,440

2,650

1,960 

1,650

2,020

2,650

3,840

2,39O

2,O80

4,380

4,46O

3,600

7,300

8,450

5,980

2,860

3,300

3,220

2,790

4,260

2,790

100, 33O

3,236

16.3

18.75

199,000

Jan.

2,260

3,6SO

4,000

2,390

1,860

1,600

1,460

1,410

1,280

1,230

1,230

1,150

2,4OO 

2,390

 2,930

2,320

1,910

1,600

1,410

1,280

1,800

1,600

1,320

3,010

10,500

8,960

3.37O

2,520

2,200

1,900

1,700

78,670

2,538

12.8

14.70

156,000

Feb.

1,45O

2,100

2,080

1,700

1,550

1,410

4,8OO

10,500

22,600

*25.600

13,200

5,480

3,600 

2.72O

2,580

2.2OO

1,910

1,800

1,650

1,860

1,650

1,410

1,28O

1,190

1,150

1,02O

920

850

-

-

-

118,260

4,224

21.2

22.10

234,600

Mar.

78O

702

695

708

671

623

*566

550

529

503

472

850

2,650 

1,75O

5,040

2,720

1,700

1,360

1,23O

1,500

1,960

1,8OO

1,460

1,520

1,410

1,650

1,600

1,560

1,550

1,750

1,500

40,959

1,521

6.64

7.65

81,240

Apr.

1,41O

1,65O

2,O20

2,520

2,O8O

1,860

2,O8O

1,800

1.6OO

1,500

1,600

2,200

2,580 

2,32O

2,200

2,260

2,260

2,020

1,60O

1,280

*1,150

1.O7O

1.020

1,060

1,150

1,190

1,230

1,860

1,86O

1,410

-

51,640

1,721

8.65

9.65

102,400

May

1,110

955

985

1,320

2,140

1,910

2,020

1,700

1,500

1,960

5.520

2,930

1,910 

1,550

1,410

1,65O

2,020

1,650

 1,560

1,280

1,410

1,700

2,080

2.O2O

2,O80

1,410

1,250

1,280

1,280

1,110

969

55,447

1,724

8.66

9.99

106,000

June

990

1,070

1,190

1,190

1,110

1,190

1.650

1,41O

1,190

1,230

1,190

1,110

1,150 

1,190

1,320

1,230

1,070

1,010

941

906

906

9 2O

S92

850

857

822

740

740

727

708

-

31,499

1,050

5.28

5.89

62,480

July

685

658

664

629

518

467

492

42O

388

 410

435

424

429 

424

401

37O

366

358

355

502

272

258

258

262

265

255

241

229

226

222

216

11,873

385

1.92

2.22

25,550

Aug.

207

201

198

195

190

181

 175

170

167

170

173

170

159 

148

144

141

141

138

138

136

136

136

136

126

121

ill

121

287

229

204

276

5,231

169

0.849

0.98

10,380

Sept.

190

159

144

154

128

124

138

1,33O

594

362

290

235

195 

173

156

148

144

141

136

128

124

119

114

117

1,240

 734

353

375

1,550

4.890

-

14,665

489

2.46

2.74

29,090

Calendar year 1950- Max 12,000 Mln 21O Mean 2,186 Cfsm 11.0 In. 149.13 Ac-ft 1,583,000

Water year 1950-51: Max 23,600 Mln 114 Mean 1,785 Cfsm 8.97 In. 121.79 Ac-ft 1,293,000

Peak discharge (base. 12.600 cfs). Oct. 1O (8 a.m.) 17.1OO cfs (21.36 ft); Nov. 24 (4 a.m.) 15,100 

cfs (20.35 ft);Dec. 24 (9:3O p.m.) 15.10O cfs (19.56 ft); Jan. 26 (12:3O a.m.) 16,100 cfs (20.92 

ft); Feb. 9 (5:30 p.m.) 27,700 cfs (27.26 ft).

Discharge measurement made on this day. 

Note. shifting-control method used Oct. 1-5, 9, 12-25, 29-31, Nov 6-2O, Feb. 16 to Sept. 30.
140 STILLAGUAMISH RIVER BASIN

Jim Creek near Arlington, Wash.

Location. La t 48°10'30", long. 122 0 03'55", in SE^NW^ sec. 17, T. 31 N., R. 6 E., on right 

bank 1 mile upstream from mouth and 3 miles southeast of Arlington.

Drainage area. 48.9 sq mi.

Records available.--October 1937 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 110 ft (from topographic map).

Average discharge. 14 years, 200 cfs.

Extremes. Maximum discharge during year, 2,820 cfs Feb. 10 (gage height, 7.41 ft); minimum, 7.2 cfs part of each day Aug. 19-27 (gage height, 0.65 ft).

1937-51: Maximum discharge, 4,730 cfs Dec. 28, 1949 (gage height, 9.28 ft), from 

rating curve extended above 1,900 cfs; minimum, 5.9 cfs Sept. 16, 194^.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

No diversion or regulation.

Revisions (water years). W 1042: 1938-44. W 1092: 1946.

Rating tables, water year 1950-51 (gage height. In feet, and dlscha-ije, In 

cubic feet per second)

(Shifting-control ethod used Apr. 12-15)

Oct. 10 to Sept. 30

1.5 

1.7 

2.0 

2.3 

2.6 

3.0 

3.5

25

45

87

141

206

311

471

1.0 

1.2

1.4 

1.6

5.9

12.0

22

34

51

72

1.8 

2.0 

2.3 

2.6 

3.0 

3.5

97

126

180

250

360

525

4.0 

4.5

5.0 

5.5 

6.0 

6.5

720

950

1,200

1,480

1,780

2,120

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

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.

Ac-ft

Oct.

35

31

25

28

214

181

139

392

2*8

983

405

232

178

147

126

114

108

200

*215

*178

148

128

116

114

230

184

290

324

312

324

318

6,667

215

4.40

5.07

13,220

Nov.

455

455

600

420

438

312

275

212

186

167

150

134

128

124

13T

381

351

285

275

275

318

285

270

620

580

490

878

 508

351

303

"

10,357

345

7.06

7.88

20,540

Dec.

288

250

242

225

210

455

508

372

387

560

405

306

248

220

265

298

508

339

282

381

378

348

765

878

660

405

455

525

525

1.000

600

13,288

429

8.77

10.11

26,360

Jan.

455

832

925

560

405

315

275

250

215

198

190

180

275

306

*525

472

490

387

318

280

542

490

363

562

950

1.060

472

300

250

210

180

13,252

427

8.73

10.08

26,280

Feb.

170

220

240

202

188

178

664

832

1,780

2.120

*1,360

620

420

327

298

258

235

242

238

288

262

222

194

188

192

172

157

141

-

-

12,410

443

9.06

9.44

24, 610

Mar.

128

122

120

128

124

111

*105

103

103

103

97

152

560

472

620

580

438

339

292

290

348

405

372

321

298

312

342

306

278

292

275

8,536

275

5.62

6.49

16,930

Apr.

245

235

252

278

255

225

220

198

176

163

157

198

202

172

167

1S2

174

154

*126

107

96

909~2

94

103

101

108

220

165

124

-

5,079

169

3.46

3.86

10,070

May

103

92

97

138

190

145

148

129

123

154

542

288

186

156

141

147

147

120

*104

97

108

118

126

110

118

88

84

88

89

79

11

4,326

140

2.86

3.29

8,580

June

72

71

71

71

65

82

JJ6

98

82

73

68

64

65

63

60

50

40

35

32

30

30

27

25

23

23

20

19

18

17

17

-

1,527

50.9

1.04

1.16

3,030

July

16

16

16

16

17

M

18

18

17

*16.5

15.5

15

14

14

13.5

13.5

13.5

14

12.5

12.5

12

11

11

11

11.5

11

10.5

10

10.5

10

9^3.

424.3

13.7

C.280

0.32

842

Aug.

9.0

9.0

9.0

9.0

8.7

8.7

8.4

*8.7

8.7

8.7

9.3

9.0

9.0

8.7

8.7

8.7

8.4

8.1

7.8

8.1

7.5

111

7.5

7.2

7.2

7.5

9.3

21

18.5

15.5

15.5

304.6

9.83

0.201

0.23

604

Sept.

13.5

11.5

10.5

9.3

9.0

8.7

10.5

24

18.5

14

12

11.5

10.5

9.3

8.7

8.7

8.4

S.4

8.4

8.1

I±l

7.8

7.8

8.7

40

*30

19

21

72

205

-

642.6

21.4

0.438

0.49

1,270

Calendar year 1950: Max 1,910 Hin 7.3 Mean 261 Cfsm 5.34 In. 72.58 Ac-ft 189,300

Water year 1950-51: Max 2,120 Mln 7.2 Mean 210 Cfsm 4.29 In. 58.42 Ac-ft 152,300

Peak discharge (base, 1,400 cfs). 

1,910 cfs (6.23 ft)j Feb. 10 (10:30 j

Oct. 10 (7 a.m.) 1,660 cfs (5.80 ft)} Jan. 26 (12:30 a.m.) 

.m. ) 2,820 cfs (7.41 ft).

Discharge measurement made on this day. 

Note. No gage-height record Jan. 28 to Feb. 2, June 16 to July 9; discharge estimated on basis of 

records for stations on nearby streams.
STILLAGUAMISH RIVER BASIN 141

Squire Creek near Darrington, Wash.

location. Lat 48°16'15", long. 121°39'45", In SE^ sec. 8, T. 32 N., R. 9 E., on left 

tank at road crossing one third of a mile upstream from Ashton Creek and 3 miles west 

of Darrington.

Drainage area. 19.6 sq mi.

Records available.--June 1950 to September 1951.

Sage.--Water-stage recorder. Altitude of gage is 480 ft (from topographic map).

Extremes. Maximum discharge during year, 6,440 cfs Feb. 10 (gage height, 10.52 ft), from 

rating curve extended above 700 cfs by logarithmic plotting; minimum, 12.5 cfs Sept. 

23, 24 (gage height, 0.79 ft).

1950-51: Maximum discharge, that of Feb. 10, 1951; minimum, that of Sept. 23, 24, 

1951.

Remarks.--Records good except those for periods of no gage-height record, which are 

fair. No diversion or regulation.

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second]

Oct. 1 to May 10 May 11 to Sept. 30

1.3 

1.5

1.7

z.o

2.3 

2.6 

3.0 

3.5

120 

174 

£41 

355 

530

4.0 

4.5 

5.0 

5.5 

6.0 

7.0 

8.3

745 

990 

1,260 

1,560 

1,910 

£,6SO 

3,880

0.8 

1.0 

1.3 

1.6 

2.0 

2.5 

3.0 

3.5 

4.0

13

24

46

80

142

242

375

550

755

Discharge, In cubic feet per second, water year October i960 to September 1951

Day

1

2 

3

4

5

6

7

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.

Ac-ft

Oct.

52

44

114

254

251

462

468

286

1.550

324

191

149 

125 

108

94

85

324

267

176

131

111

98

190

585

310

502

413

284

229 

206

8,403

271

13.8

15.94

16,670

Nov.

251

241 

392

463

316

219

184

147

126

112

102

94

86 

11 

81

140

117

101

89

150

244

234

371

1,170

1.490

840

*890

364

257

213

9,565

319

16.3

18.15

18,970

Dec.

178

154 

141

130

130

592

355

246

701

900

490

301

222 

197 

313

364

550

267

398

811

610

570

801

1.520

640

346

325

287

267

370 

241

13,217

426

21.7

25.08

26,220

Jan.

199

270 

281

208

*172

150

140

131

118

114

108

156 

274

208

*162

136

120

111

1£5

114

10£.

336

990

694

£95

a 200

al60

a!40 

al£0

6,591

£13

10.9

1£.51

13,070

Feb.

a!15

a!70 

174

145

126

346

834

1,440

3,700

3.860

1,310

541

355 

£67 

246

206

184

162

156

154

138

125

116

108

102

94

87

13

:

15,344

548

28.0

29.11

30,430

Mar.

78

75 

72

72

68

64

61

*59

59

55

53

68

101 

90 

252

188

128

108

104

128

156

140

118

110

117

116

111

104

118

123 

114

3,215

104

5.31

6.10

6,380

Apr.

116

138 

176

197

182

172

182

166

149

145

156

215

m213

227

*231

208

166

141

126

120

112

117

130

134

141

178

166

134

5,018

167

8.52

9.52

9,950

May

116

"108

149

199

202

224

189

195

271

610

295

220 

193 

201

251

305

224

197

210

251

310

*375

384

278

222

207

191

170

153 

153

7,157

231

11.8

13.58

14,200

June

170

193 

207

212

203

207

220

187

197

199

195

189

210 

£42 

251

210

197

189

183

185

189

187

177

191

177

168

164

164

162

0|S

5,780

193

9.85

10.97

11,460

July

149

151

117

94

102

87

80

87

93

91

*91

91 

84 

81

79

77

72

64

58

56

56

56

56

53

50

48

47

45

44 

43

2,446

78.9

4.03

4.64

4,850

A'lg.

42

40 

40

39

36

35

34

34

*34

34

33

32

29 

27 

27

26

26

25

25

25

25

25

25

23

22

21

43

26

49 

29

960

31.0

1.58

1.82

1,900

Sept.

25

22 

20

19

18.5

17.5

62

143

44

39

34

28

25

22 

19

18.5

18.5

18.5

17.5

16.5

15.5

14.5

T§

148

*47

34

110

367

605

1,997.5

66.6

3.40

3.79

3,960

Calendar year 1950: Max - Mln - Mean - Cfsm - In. - Ac-ft - 

Water year 1950-51: Max 3,860 Minis Mean 21S Cfsm 11.1 In. 151.21 Ac-ft 158,100

.__ __.._._. (base. £.200 cfsK Oct. 10 (3:30 a.m.) 3,030 cfs (7.42 ft); Nov. 25 (3 p.m.) Z,t 

cfs (V.04 ft); Dec. 24 (4 p.m.) 2,280 cfs (6.53 ft); Feb. 10 (1:30 a.m.) 6,440 cfs (10.51* ft). 

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for stations on nearb;' streams.
142 STILLAGUAMISH RIVER BASIN

North Fork Stillaguamish River near Darrington, Wash.

Location. Lat 48°16'30", long. 121°42'00", in NW£ sec. 7, T. 32 N., R. 9 E., in pier at 

left bank at highway bridge 5 miles west of Darrington.

Drainage area. 39.1 sq mi.

Records available. June 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 410 ft (from topographic map).

Extremes. Maximum discharge during year, 15,500 cfs Feb. 10 (gage height, 10.63 ft), from 

 rating curve extended above 4,200 cfs by logarithmic plotting; minimum, 38 cfs Sept. 23,

24 (gage height, 0.96 ft).

1950-51: Maximum discharge, that of Feb. 10, 1951; minimum, that of Sept. 23, 24,

1951.

Remarks. Records good except those for periods of no gage-height record or shifting control, which are fair. No diversion or regulation.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

127

113

102

178

616

771

998

1,200

792

3.860

1,250

792

604 

502

424

364

316

1,030

1,050

778

604

502

442

519

1,570

1,200

1,570

1,570 

1,200

1,020

948

27,012

871

22.3

25.69

53,580

Nov.

1,070

1,120

1,450

1,400

1,250

940

820

680

586

532

478

436

394 

370

252

550

514

460

406

538

989

1,120

1,340

3,360

3.710

2,690

 2,930

1,510 

1,120

916

-

34,031

1,134

29.0

32.37

67,500

Dec.

764

654

592

532

508

1,710

1,400

1,060

1,770

3,020

1,750

1,200

940 

806

1,060

1,200

1,810

1,120

1,290

2,530

2,300

1,950

2,470

3.450

2,290

1,300

1,200

1,120 

1,030

1,300

980

45,086

1,454

37.2

42.88

89,430

Jan.

820

998

1,160

884

 715

616

556

520

472

442

412

582

514 

598

785

757

635

 544

478

436

460

418

382

718

2,210

2.570

1,160

a800 

a680

a560

a510

22,992

742

19.0

21.87

45,600

Feb.

a475

a560

667

562

490

448

1,930

4,170

10,300

10.500

*5,070

2,300

1,560 

1,220

1,100

955

857

762

714

720

642

582

534

504

470

425

395

375

-

-

49,269

1,760

45.0

46.86

97,720

Mar..

345

322

318

314

298

282

270

258

250

236

226

274

455 

 425

791

801

606

516

492

594

732

630

606

564

588

618

618

582 

594

624

600

14,829

478

12.2

14.10

29,410

Apr.

594

690

878

990

955

899

955

871

787

726

738

1,020

1.220 

1,100

990

1,060

 1,100

1,020

822

690

600

546

498

504

558

600

630

920 

829

678

-

24,468

816

20.9

23.27

48,530

May

576

504

516

702

815

836

955

822

801

1,020

1.910

1,220

892 

768

738

829

920

738

648

642

720

850

 955

899

808

636

600

582 

546

486

455

24,389

787

20.1

23.20

48,370

June

470

498

540

618

558

606

630

534

534

528

516

492

510 

552

576

498

460

435

410

405

410

395

380

405

375

350

335

330 

318

210

13,978

466

11.9

13.30

27,720

Jily

298

298

286

254

215

218

200

188

188

191

185

 167

185 

176

167

164

161

150

140

132

125

118

115

112

108

105

99

95 

93

89

SI

5,109

165

4.22

4.86

10,130

Aug.

83

80

78

75

73

70

67

64

 65

65

64

61

58 

57

55

54

53

52

52

50

50

50

48

47

44

*1

48

122 

68

87

75

1,957

63.1

1.61

1.86

3,880

Sept.

58

53

49

47

44

42

74

375

120

89

78

65

61 

55

52

49

48

47

46

43

 41

40

31

40

269

118

76

158 

484

1.260

-

4,020

134

3.43

3.82

7,970

Calendar year 1950: Max - Mln - Mean - Cfsm - In. - Ac-ft -

Water year 1950-51 1950-51: :Max 10,500 Mln 399___Mean Mean7325 Cfsm 18.7 In. 254.08 Ac-fte 529,800 529,800

Peak discharge (baae. 4.400 efs).--Oet. 10 (5:50 a.m.) 6.650 efa (6.39 ft); Nov. 25 (5 p.m.) 6.170 

cfa (6.23 ft): Dec. 10 (2 a.m.) 4,670 cfs (5.50 ft): Dec. 20 (6:30 p.m.) 4,470 cfs (5.38 ft); Dec. 

24 (6:30 p.m.) 5,180 cfa (5.73 ft); Feb. 10 (3 a.m.) 15,500 cfs (l0.63 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station near Arlington.

Note. Shifting-control method uaed Feb. 12 to Apr. 13, May 12 to July 7, July 15 to Sept. 7.
STILLAGUAMISH RIVER BASIN 143

North Fork Stillaguamish River near Arlington, Wash.

Location. Lat 48°15'45", long. 122«02»45", in SE^-NWi sec. 16, T. 32 N., R. 6 E. , on right

 Bank 6 miles northeast of Arlington, 7 miles upstream from mouth, and 8 miles downstream from Deer Creek.

Drainage area. --269 sq mi.

Records available. July 1928 to September 1951.

Gage . Water-stage recorder. Datum of gage is 89.34 ft above mean sea level, datum of 

"1929. Prior to Sept. 18, 1928, staff gage at same site at datum 0.34 ft lower.

Average discharge. --23 years, 1,740 cfs.

Extremes . Maximum discharge during year, 30,600 cfs Feb. 9; maximum gage height, 13.46

 ft Feb. 10, 11; minimum discharge, 168 cfs Sept. 24.

1928-51: Maximum discharge, that of Feb. 9, 1951; maximum gage height, that of 

Feb. 10, 11, 1951; minimum discharge, 88 cfs Sept. 23, 1938.

Remarks. --Records fair. No diversion or regulation. 

Revisions. --W 832: Drainage area.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

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.

Ac-ft

Oct.

540

485

439

462

1,850

2,520

2,370 

3,900

2,620

10.900

4,240 

2,520

1,940

1,590 

1,350

1,200

1,100

 3,340

3,370

2,520

1,900

1,550

1,350

1,240 

3,040

2,820 

3,480

3,640

3,260

2,820

2,720

77,276

2,493

9.27

10.68

153,300

Nov.

2,930

3,150

3,970

3,600

3,720

2,720

2,420 

1,940

1,630

1,470

1,310 

1,200

1,100

1.060 

1,060

1,980

1,720

1,430

1,240

1,470

2,520

2,620

2,500

9.740 

8,840

7,560 

9,120

4,990

3,480

2,930 "

95,420

3,181

11.8

13.19

189,300

Dec.

2,520

2,170

2,030

1,350

1.760

 4, 620

4,830 

3,480

3,710

8,600

4,990 

3,720

2,930

2,520 

2,930

3,260

4,830

3,370

2,930

6,000

7,320

5,150

8,040

11.500 

7,560

3,840 

4,100

3,840

3,260

4,680

3,260

135,400

4,368

16.2

18.72

268,600

Jan.

2,820

3,720

3,970

2,720

2,170

1,800

1,630 

1,590

1,470

1,390

1,350 

1.240

2,220

2,320 

3,040

2,620

2,320

 1,850

1,550

1,390

1,900

1,720

1,430

2,440 

6,280

9.050 

3,600

2,420

1,980

1,760

1,550

77,290

2,493

9.27

10.69

153,200

Feb.

1,470

1,720

2,170

1,720

1,550

1,390

6,140 

10,700

25,000

26.600

17,600 

6,900

4,180

3,050 

2,780

2,340

2,050

1,880

1,730

2,000

,730

,480

,350

,260 

,260

,100 

,020

950

-

-

"

135,120

4,826

17.9

18.68

268,000

Mar.

915

831

824

838

810

756

726 

696

696

662

640 

1,100

2,580

1,880 

 5.360

3,050

1,940

1,630

1,530

1,940

2,460

2,280

1,830

1,630 

1,730

2,000 

1,940

1,680

1,780

1,940

1,630

48,304

1,558

5.79

6.68

95,810

Apr.

1,580

1,780

2,220

2,650

2,400

2,160

2,340 

2,050

1,780

1,630

1,630 

2,460

5.190

2,780 

2,460

2,650

2,780

2,460

 1,940

1,580

1,350

1,220

1.140

1,180 

1,260

1,350 

1,440

2,580

2,280

1,630

~

59,950

1,998

7.43

8.29

118,900

May

1,350

1.140

1,180

1,630

2,220

2,050

2,220 

2,000

1,830

2,400

6.460 

3,940

2,520

2,000 

1,830

2,100

2,340

 1,940

1,630

1,580

1,680

2,050

2,400

2,280 

2,340

1,630 

1,460

1,440

1,480

1,350

1,180

63,690

2,055

7.64

8.81

126,300

June

1,180

1,180

1,260

1,440

1,350

1,400

1.580 

1,350

1,260

1,220

1,220 

1,180

1,140

1,220 

1,260

1,180

1,060

985

950

915

880

860

859

852 

831

798 

750

738

732

2U.

32,364

1,079

4.01

4.47

64,190

July

690

679

690

674

618

580

580 

540

515

520

520 510

525

530 

505

485

476

476

462

430

412

399

390

386 

386

378 

366

366

358

354

3-4§

15,146

489

1.82

2.09

30,040

Aug.

334

326

318

314

306

303

296 

289

286 286

275 

268

261

258 

254

240

234

228

225

228

222

222

219

216 

213

207 

213

ill

310

278

303

8,403

271

1.01

1.16

16,670

Sept.

258

237

222

210

204

201

228 

1,020

422

306

282 

261

234

225 

213

201

198

198

192

189

180

175

i!2

175 

742

471 

303

322

780

5.640

~

12,461

415

1.54

1.72

24,720

Calendar year 1950: Max 11,900 Mln 282 Mean 2,524 Cfsm 9.38 In. 127.38 Ac-ft 1,827,000

Water year 1950-51: Max 28,600 Mln 172 Mean 2,084 Cfsm 7.75 In. 105.18 Ac-ft 1,509,000

Peak discharge (base. 11.500 cfsK Oct. 10 (7:30 a.m.) 16,100 cfs (10.17 ft); Nov. 24 (6 a.m.)

15,200 cfs (9.71 ft); Dec. 10 (4 a.m.) 11,900 cfs (8.76 ft); Dec. 20 (10 p.m.) 14,500 cfs (9.45 ft);

Dec. 24 (7:30 p.m.) 16,500 cfs (10.02 ft)j Jan. 26 (2:30 a.m.) 16,100 cfs (10.30 ft); Feb. 9 (5 p.m.)

30,600 cfs (13.30 ft).

* Discharge measurement made on this day.
144 STILLAGUAMISH RIVER BASIN

Armstrong Creek near Arlington, Wash.

Location. Lat 48e 13'15", long. 122°08'00", in NW£ sec. 35, T. 32 N. , R. 5 E., on right 

bank at Northern Pacific Railroad culvert 1 mile north of Arlington.

Drainage area. 7.2 sq mi, approximately. 

Records available. June 1950 to September 1951.

Gage. Water-stage recorder and wooden control. Altitude of gage is 60 ft (from topographic map).

Extremes. Maximum discharge during year not determined, occurred sometine Feb. 9 or 10,

 when gage height was affected by backwater from Stillaguamish River; minimum, 1.2 cfs 

Sept. 14.

1950-51: Maximum discharge, that of Feb. 9 or 10, 1951; minimum, that of Sept. 14, 

1951.

Remarks. Records good prior to Feb. 9, 1951, fair thereafter except those for periods of

 UacTcwater, doubtful, or no gage-height record, which are poor. No diversion or regulation.

Rating tables, water year 1950-51, except periods of backwater or doubtful gageheight record (gage height, In feet, and discharge, in cubic feet per second) 

(Shifting-control method used June 4-20, July 5 to Aug. 3, Sept. 11-30)

Oct. 1 to Nov. 27

3.8

4.9

8.6

14.5

36

53

Nov. 28 to Feb. 9 Feb. 10 to Sept. 30

75

.9

1.0

1.1

11.5

20

32

48

70

0.3 

.35 

.4 

.45 

.5

1.4 

2.6 

4.7 

7.7 

11.5

0.6

.7

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

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

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

4.9

4.3

1*8

4.9

12

13

9.6

25

17

33

17

14.5

10.5

8.6

7.6

6.8

6.8

9.6

12

14.5

14.5

12

10

10.5

15.5

19

19

23

21

21

19

420.4

13.6

1.89

2.17

834

Nov.

36

30

42

25

23

19

17

14.5

14.5

13

12

10.5

10.5

1C-. 5

13

36

23

19

17

19

17

15.5

15.5

30

33

30

. 

24

26

"

663.5

22.1

3.07

3.43

1,320

Dec.

34

28

24

20

17.5

18.5

19

18.5

17.5

18.5

17.5

14

13

12.5

14

14

16.5

14

14

14

18.5

19

30

48

52

37

32

32

26

48

55

756.5

24.4

3.39

3.91

1,500

Jan.

52

55

45

 50

43

32

27

22

19

17.5

18.5

16

19

21

40

 43

48

40

34

27

43

48

43

34

28

35

27

21

17.5

16

I5-

996.5

32.1

4.46

5.15

1,980

Feb.

15

21

18.5

17.5

16.5

16

27

26

»c55

c60

c50

31

26

23

23

18.5

17

31

31

31

32

29

21

21

34

29

23

20

-

-

-

763.0

27.2

3.78

3.94

1,510

Mar.

20

15.5

17

23

21

 18.5

14.5

13.5

14.5

13.5

11.5

27

27

26

39

56

60

63

56

56

66

11

69

66

60

69

56

42

36

34

29

1,194.5

38.5

5.35

6.17

2,370

Apr.

24

23

21

18.5

15.5

15.5

17

15.5

13.5

15.5

11.5

9.9

 9.9

9.9

9.1

7.7

7.0

7.0

4.7

3.4

d3.1

d2.8

d2.6

2.4

276

5.7

8.4

11.5

12.4

9.1

-

319.7

10.7

1.49

1.65

 34

May

6.3

5.2

4.7

3.8

4.7

3.4

4.7

4.2

2.4

1*8

44

39

21

13.5

11.5

 10.5

8.4

8.4

8.4

7.7

6.3

5.2

5.7

5.7

6.3

5.2

5.2

7.0

7.7

5.2

5.2

278.3

8.98

1.25

1.44

552

June

4.7

4.2

3.8

9.9

9.1

9.1

15,5

11.5

.7

.3

.2

.7

.2

.7

.7

1 .5

.1

.7

.3

.2

a .5

a

a .5

a .2

a .7

a .2

a

a

a4.2

a4.7

-

190.1

6.34

0.881

0.98

377

July

a .7

a .3

a .8

a .9

» .2

_ _

145.6

4.70

0.653

0.75

289

Aug.

4.2

4.7

6.9

4.2

3.S

4.2

3.4

4.0

3.8

»3.8

3.8

4.2

4.2

4.2

4.2

3.8

3.8

3.8

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.7

7.0

673

4.7

4.2

3.8

135.1

4.36

0.606

0.70

268

Sept.

3.8

3.4

3.4

3.4

3.4

3.4

3.4

3.8

3.8

3.4

3.4

2.4

2.4

1. 6

TTe

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.8

1.8

 4.7

3.0

2.4

2.6

3.0

1*2

83.3

2.78

0.386

0.43

165

Calendar year 1950: Max - Mln - Mean - Cfsm - In. - Ac-ft -

Water year 1950-51: Max 75 Mln 1.6 Mean 16.3 Cfsm 2.26 In. 3O.72 Ac-ft 11,800

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations or nearby streams, 

e Backwater from Stillaguamish River.

d Doubtful gage-height record; discharge estimated on basis of records for stations on nearby 

streams.
STILLAGUAMISH RIVER BASIN 145 

Cavanaugh Lake near Oso, Wash.

Location. Lat 48°19'30", long. 122°19'15", in NW£NW£ sec. 26, T. 33 N., R. 6 E., on north 

shore 5 miles northwest of Oso.

Drainage area. 6.7 sq mi, approximately

Records available. June 1950 to September 1951 (discontinued).

Gage.--Staff gage read once daily. Altitude of gage is 1,010 ft (from topographic map).

Extremes. 1950-51: Maximum gage height observed, 5.12 ft Feb. 11, 1951; minimum observed, 

0.84 ft Aug. 28, 29, 1951.

Remarks. No diversion or regulation.

Gage height, in feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.22

2.20

2.18

2.18

2.34

2.41

2.48

2.70

2.78

3.27

3.30

3.26

3.17

3.09

2.96

2.86

2.79

2.90

2.96

3.00

2.96

2.88

2.82

2.77

2.77

2.76

2.78

2.80

2.82

2.88

2.90

Nov.

2.98

2.99

3.09

3.09

3.16

3.15

3.10

3.03

2.94

2.86

2.78

2.71

2.66

2.60

2.60

2.74

2.78

2.82

2.76

2.75

2.75

2.78

2.77

3.09

3.26

3.32

3.62

3.66

3.58

3.52

-

Dec.

3.41

3.32

3.21

3.11

3.02

3.09

3.24

3.30

3.30

3.34

3.32

3.25

3.16

3.11

3.06

3.02

3.08

3.04

2.98

3.10

3.32

3.41

3.68

3.94

4.00

4.09

4.16

4.27

4.21

4.20

4.11

Jan.

3.98

4.23

4.34

4.20

4.00

3.86

3.63

3.47

3.34

3.25

3.13

3.05

3.17

3.35

3.42

3.54

3.58

3.53

3.44

3.36

3.48

3.55

3.46

3.50

3.61

4.20

4.18

3.98

3.77

3.59

3.44

Feb.

3.31

3.30

3.30

3.27

3.19

3.09

3.37

3.66

4.50

4.78

5.12

4..74

4.43

4.16

3.94

3.71

3.56

3.42

3.36

3.35

3.30

3.19

3.09

3.Q4

3.03

2.92

2.83

2.74

-

-

Mar.

2.66

2.61

2.56

2.61

2.66

2.66

2.58

2.47

2.45

2.42

2.36

2.50

2.65

2.69

2.92

2.94

2.92

2.88

2.82

2.81

2.86

2.96

2.94

2.93

2.S8

2.92

2.94

2.93

2.95

2.97

2.96

Apr.

2.91

2.88

2.86

2.83

2.80

2.76

2.72

2.65

2.60

2.55

2.49

2.44

2.41

2.38

2.32

2.29

2.24

2.21

2.18

2.12

2.08

2.04

2.00

1.97

1.94

1.91

1.90

1.98

1.98

1.96

-

May

1.94

1.91

1.89

1.88

1.90

1.S8

1.87

1.86

1.84

1.81

2.23

2.34

2.34

2.32

2.30

2.25

2.21

2.18

2.13

2.07

2.04

2.00

1.95

1.97

1.92

1.86

1.82

1.82

1.80

1.77

1.74

June

1.71

1.67

1.65

1.64

1.60

1.6}

1.61

1.62

1.59

1.55

1.54

1.53

1.54

1.54

1.54

1.54

1.54

1.54

1.53

1.53

1.52

1.52

1.51

1.50

1.50

1.49

1.48

1.48

1.47

1.46

July

1.45

1.44

1.43

1.42

1.41

1.41

1.41

1.40

1.39

1.39

1.38

1.37

1.37

1.36

1.35

1.34

1.33

1.32

1.30

1.29

1.28

1.26

1.25

1.24

1.22

1.20

1.19

1.18

1.17

1.16

1.15

A'lg.

1.14

1.12

1.11

1.10

1.08

1.06

1.05

1.04

1.03

1.02

1.01

1.00

.99

.98

.97

.96

.95

.94

.93

.93

.92

.91

.90

.88

.87

.86

.85

.84

.84

.87

.91

Sept.

0.93

.93

.92

.92

.91

.90

.92

.96

.95

.94

.94

.94

.93

.93

.93

.92

.91

.90

.90

.89

.87

.86

.86

.86

1.01

1.01

1.02

1.04

1.05

1.20

-
146 STILLAGUAMISH RIVER BASIN

Pllchuck Creek near Bryant, Wash.

Location.--Lat 48°16'00", long. 188°09'45", in NE£ sec, 16, T. 38 N., R. 5 E., on right 

bank 500 ft upstream from highway bridge 2 miles north of Bryant.

Drainage area. 50.8 sq ml (revised).

Records available. March 1929 to September 1931, June 1950 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 140 ft (from topographic map). Prior 

to Sept. 30, 1931, staff gage 100 ft downstream at different datum.

Extremes. Maximum discharge during year, 3,990 cfs Feb. 9 (gage height, 6.69 ft); mlnl- 

 ium7~1.3 cfs Aug. 20, 21 (gage height, 1.40 ft).

1989-31, 1950-51: Maximum discharge, that of Feb. 9, 1951; minimum, 0.5 cfs Aug. 

29 to Sept. 1, 1931 (gage height, 0.90 ft, site and datum then in use).

Remarks.--Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. No diversion or regulation.

Rating tables, water year 1950-51, except periods of shifting control 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 9

1.9 29

Z.I 61

2.4 141

2.7 264

3.1 487

3.5 760

4.0 1,160

4.5 1,670

Discharge, in cubic feet per second, water year October 195O to Septenber 1951

1.4

1.6

1.8

2.1

2.4

2.7

3.1

Feb.

1.3

6.2

19

66

148

248

440

9 to Sept. 3O

3.5

4.0

4.5

5.0

5.5

6.0

700

1,090

1,500

1,980

2,520

3,100

Day

1

2

3

4

5

6

7

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.

Ac-ft

Oct.

52

43

37

35

376

411

264

595

396

1,420

487

274

198

163

135

116

105

499

450

350

250

200

130

120

400

350

400

550

500 

550

500

10,35b

334

6.57

7.58

20,540

Nov.

800

600

900

600

7OO

450

350

250

220

190

170

150

140

130

200

500

450

400

350

300

450

350

300

850

70O

*591

i.ioo

702

432 

330

13,655

455

8'. 9 6

10.00

27,080

Dec.

294

255

269

250

223

672

923

598

444

632

456

352

255

214

246

352

598

374

274

642

828

611

1,220

1.410

915

493

812

1,000

702 

1,220

695

18,229

588

11.6

13.35

36,160

Jan.

519

971

1,170

625

438

336

279

246

218

218

241

210

265

551

942

660

545

391

 309

269

738

584

397

719

1.570

1,520

578

374

309 

246

206

16,644

537

1O.6

12.18

33,010

Feb.

189

269

444

357

284

250

1,130

1,360

»2.740

2,020

 1,580

700

464

345

330

286

248

256

277

520

380

286

233

208

208

181

166

154

-

-

15,865

567

11.2

11.61

31,470

Mar.

142

127

124

127

118

115

104

 99

94

96

84

240

749

434

811

539

317

265

273

402

500

407

322

290

360

464

434

335

402 

412

330

9,516

307

6.04

6.97

18,870

Apr.

304

345

380

365

294

252

261 198-

181

175

191

269

 248

201

191

201

191

157

118

94

78

74

76

86

102

96

104

344

201 

133

-

5,910

197

3.88

4.33

11,720

May

102

78

88

139

194

145

154

139

121

145

1.090

446

233

181

157

*163

148

121

102

99

110

115

124

99

110

74

71

59

66 

59

Si

4,983

161

3.17

3.65

9,880

June

48

44

42

46

44

51

99

76

55

4O

33

30

27

29

23

17

13.5

11.5

9.9

9.4

8.9

7.9

7.0

6.6

6.6

5.4

5.1

4.7

4.4 

Ail

809. 0

27.0

0.531

0.59

1,600

Jvly

3.8

3.5

3.5

3.8

4.1

*4.4

4.4

4.4

4.1

3.8

3.5

3.3

3.0

2.8

2.6

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.2

2.1

2.1

2.1

2.1

2.1

2.1 

14T7§

91.0

2.94

0.058

O.O7

180

Aug.

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

 1.6

1.6

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1*1

1.4

1.4

1.6

1.6

1.4

1.4

1.4

1.9

7.0

9^9 

5.8

4.7

70.9

2.29

0.045

O.O5

141

Sept.

4.4

3.8

3.0

2.8

2.6

2.4

2.6

2.8

4.4

4.7

3.8

3.3

2.8

2.8

2.8

2.

2.

2.

2.

2.

2.

2.

i.9

2.2

*115

23

14.5

13

27 

215

-

475.9

15.9

0.313

0.35

944

Calendar year 195O: Max - Min - Mean - Cfsm - In. - Ac-ft -

Water year 1950-51: Max 2,740 Min 1.4 Mean 265 Cfsm 5.22 In. 70. 73 Ac-ft 191,600

Peak discharge (base. 2.OOP efs).--0et. 1O (5:30 a.m.) 2,350 cfs (5.08 ft); Dec. 24 (8 p.m.) 2.O90 

cfs (4.87 ft); Jan. 25 (12 p.m.) 3,120 cfs (5.62 ft); Feb. 9 (2:30 p.m.) 3,99O cfs (6.69 ft).

* Discharge measurement made on this day.

Note. No gage-height record Oct. 19 to Nov. 25; discharge estimated on basis of records for 

stations on nearby streams. Shifting-control method used Jan. 15 to Feb. 9, Mar. 16 to May 11.
STILLAGUAMISH RIVER BASIN 147

Pish Creek near Arlington, Wash.

Location.--Lat 48°10'30", long. 122°13'30", in NW£ sec. 18. T. 31 N., R. 5 E., on left 

bank three-quarters of a mile upstream from mouth and 4^ miles west of Arlington.

Drainage area. 7.6 sq mi, approximately. 

Records available.--June 1950 to September 1951.

Gage. Water-stage recorder and wooden control. Altitude of gage is about 50 ft (from 

topographic map).

Extremes.--Maximum discharge during year, 92 cfs Jan. 2 (gage height, 2.17 ft); minimum, 

0.3 cfs part of each day Aug. 20-26, Sept. 4-7.

1950-51: Maximum discharge, that of Jan. 2, 1951; minimum, 0.3 cfs par*-, of each day 

Aug. 20-26, Sept. 4-7, 1951.

Remarks.--Records good except those for periods of no gage-height record or shifting control, which are fair, and those below 1.0 cfs, which are poor. Some diversion and regulation.

Rating table, water year 195O-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

1.0 

1.2

0.5 

1.2 

3.9 

9.3

1.4 

1.6 

1.8 

2.1 82

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

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

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

1.0

i!o

1.0

3.2

3.6

2.6

6.3

5.0

5.5

4.3

3.1

2.8

2.5

2.1

2.1 

2.1

2.8

3.1

5.0

3.6

2.9

2.8

2.8

6.9

6.3

7.5

10.5

8.4

6.6

5.5

123.9

4.OO

0.526

0.61

246

Nov.

12

13

19.5

12

8.1

6.0

5.5

4.3

4.1

3.9

3.9

3.8

3.6 3~7§

6.3

1!

14.5

10

14

10

9.0

10.5

12

16.5

13.5

17.5

*14

10.5

19

-

340.9

11.4

1.50

1.67

676

Dec.

32

20

15

12

9.6

10.5

16.5

15

14

17.5

16

13.5

10.5

10.5

14.5

16.5 

19

14.5

14

12

14

14.5

19

24

23

16

14

14

12

52

34

544.6

17.6

2.32

2.66

r.oso

Jan.

34

72

50 *35

23

16.5

14

12

10.5

11.5

13

10.5

10

9.6

48

*54

56

37

30

23

73

55

35

28

24

22

16

a!2

all

a9.5

ag

864.1

27.9

3.67

4.23

1,710

Feb.

a 10

bl8

15.5

14.5

12.5

12

25

18

28

26

21

15

12.5

11

13

11.5 

13

19

15

27

17.5

13.5

11

12

22

21

17

14

-

-

-

465.5

16.6

2.18

2.28

923

Mar.

12.5

10.5

10.5

16

16.5

15

13

13

12

10,5

10

*34

67

56

60

44 

30

22

18.5

16.5

16

31

25

18.5

16

16.5

14

12

11

12

10.5

670.0

21.6

2.84

3.28

1,330

Apr.

 BTT 9.0

7.2

6.6

6.3

5.8

5,b

5.3

4.8

4.3

4.1

3.9 3.8

3.6

3.4

3.2

3.1

3.1

3.2

2.9

2.8

2.6

2.6

2.5

2-i5

2.3

2.3

4.1

4.3

3.4

-

126.4

4.21

0.554

0.62

251

May

2.8

2.6

2.5

2.2

2.2

2.2

2.5

2.6

2.5

2.2

17. R

10.5

6.3

4.8

3.9

 3.4 

3.2

3.1

2.8

2.5

2.2

2.1

1.8

1.8

1.8

1.8

1.7

2.0

1.8

1.6

1.6

102.5

3.31

0.436

0.50

203

June

.5

.4

.4

.2

.2

.5

.8

.7

.6

.6

.6

.5

.3

.2 

.2

.2

.1

.0

1.0

.9

.9

.9

.8

a. 8

a/7.

a. 7

a. 7

a. 7

-

41.3

1.38

0.182

0.20

82

July

aO.7

a. 7

a. 8

a. 8

a. 8

a. 8

a. 8

a. 7

a. 7

*,7

«.6

.5

.5

.6

,5

.5 

.5

.6

.6

.6

.6

.5

.5

.5

.6

.6

.6

.5

.5

.6

.5

19.0

0.61

0.080

0.09

38

Aug.

0.

j_

* .

il

14.3

0.46

0.061

0.07

28

Sept.

0.4

.4

.4

.4

.3

j£

.4

.6

.5

.6

.6

.6

.5

.5

.4

.4 

.4

.5

.5

.5

.4

.5

.5

.6

iil

.8

.7

1.0

1.1

1.0

-

16.9

0.56

0.074

0.08

34

Calendar year 195O: Max - Mln - Mean - Ofsm - In. - Ac-ft -

Water year 195O-51: Max 73 Mln O.3 Mean 9.12 Ofsm 1.2O In. 16.29 Ac-ft 6,600

Peak discharge (base. 75 cfs). Dec. 3O (8 a.m.) 78 cfs (2.07 ft); Jan. 21 (ll:3O a.m.) 92 cfs 

(2.17 ft}; Jan. 21 (2 p.m.) 82 cfs (2.10 ft); Mar. 13 (8-.3O p.m.) 86 cfs (2.13 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for stations 

on nearby streams.

b Stage-discharge relation affected by Ice.

Note. Shifting-control method used May 23 to June 25, July 1O to Sept. 3O.
148 SKAGIT RIVER BASIN

Skagit River near Hope, British Columbia 

(International gaging station)

Location. Lat 49°03', long. 121°05i, on left bank just downstream from Galena Creek, 

4 miles upstream from international boundary, and 40 miles southeast of Hope, British 

Columbia.

Drainage area. 357 sq mi, (revised).

Records available. October 1934 to September 1951 in reports of Geological Survey. March 

1915 to September 1922 in reports of Water Resources Division, Department of Resources 

and Development, Canada.

Gage.--Water-stage recorder. Altitude of gage is 1,670 ft (from topographic map). Prior 

to October 1934, water-stage recorder at about same site but different datum.

Average discharge. 17 years (1934-51), 926 cfs.

Extremes.--Maximum discharge during year, 5,560 cfs May 24 (gage height, 10.49 ft); minimum, 218 cfs Sept. 24 (gage height, 5.31 ft).

1915-22, 1934-51: Maximum discharge, 10,200 cfs June 21, 1950 (gage height, 12.20 

ft); minimum recorded, 81 cfs Feb. 9, 1937.

Remarks. No diversion or regulation.

Cooperation.--This station is maintained with the cooperation of the city of Seattle and 

is one of the international gaging stations maintained by Canada under agreement with 

the United States.

Rating table, water year 1950-51 (gage height. In

feet, and discharge, in cubic feet per second)

(Shifting-control method used Oct. 1-9)

5.3 

5.6 

6.0 

6.5 

7.0

215

320

505

820

1,180

7.5 

8.0 

9.0 

10.4

1,610

2,130

3,330

5,410

Discharge, In cubic feet per second, water year October 1950 to Septemler 1951

Day

1 

2 

3

4

5

6

7

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.

Ac-ft

Oct.

303 

286 

270

2S5

255

260

273

384

496

764

946

778

729

656

614

566

522

505

566

687

668

 614

590

572

694

862

897

1,000

939

883

827

18,661

602

1.69

1.95

37,010

Nov.

764 

708 

792

1,110

al,170

al,220

1,280

1,140

1,020

995

981

918

84S

813

771

750

708

650

596

SSi

608

638

602

827

1,160

2,250

5.560

3,370

*2,550

2,060

-

35,443

1,180

3.31

3.69

70,300

Dec.

1,740 

1,520 

1,380

1,250

1,180

1,160

1,090

1.030

1,030

1,490

1,800

1,850

1,710

1,530

1,410

1,320

 1,310

1,280

1,200

1,260

1,420

1,540

1,610

2,170

5.890

3,230

2,500

2,110

1,830

1,660

1,500

51,000

1,650

4.62

5.33

101,200

Jan.

1.590 

1,330 

1,270

1,160

1,080

1,020

967

939

904

862

820

778

757

736

736

708

694

662

626

620

626

602

578

578

a575

a572

a569

566

566

566

 566

24,423

788

2.21

2.55

48,440

Feb.

572 

578 

596

596

566

532

516.

538

764

2,250

a2 , 100

al,940

al,780

al,630

al,480

1,320

1,200

1,120

1,040

981

925

676

820

785

750

701

674

 644

_

-

28,374

1,010

2.83

2.95

56,080

Mar.

632 

596 

 578

572

522

a510

a497

485

465

460

450

445

445

435

445

440

415

400

400

415

450

465

460

445

450

455

470

480

485

505

 516

14,788

.477

1.34

1.54

29,330

Apr.

544 

608 

785

995

1,160

1,200

1,280

1,330

1,290

1,240

1,240

1,430

1,920

2,160

2,090

2,110

2,270

2.440

2,240

1,980

1,770

1,610

1,490

1,440

1,450

1,510

1,530

1,560

1,550

1,480

-

45,702

1,520

4.26

4.75

90,650

May

1,400 

1.550 

1,550

1,470

1,940

2,530

3,030

3,460

3,280

3,740

4,710

5,060

4,050

3,380

3,060

3,280

3,880

3,920

3,540

3,360

3,540

4,170

5,350

 5 ,200

4,380

3,640

3,290

2,970

2,620

2,360

2,170

101,420

3,270

9.16

10.56

201,200

June

2a50 

 2,240 

2,560

2,740

2,860

2,860

2,900

2,900

2,980

3,150

3,290

3,370

3,470

3,740

4.400

4,280

3,980

3,640

3,420

3,080

2,930

2,910

2,970

2,950

2,880

 2,910

2,770

2,640

2,580

2,610

92 , 140

3,070

8.6'J

9.60

182,800

July

2,670 

2.710 

,610

,430

,140

,110

,eao

,700 ,eio

,610

,E70

,E40

,E20

,EOO

,440

,380

,320

,?90

,?10

,110

1,040

995

967

946

925

883

834

799

771

771

750

45,031

1,-kSO

4.06

4.68

89,320

Aug.

750 

743 

736

715

632

644

602

596

566

532

544

516

475

440

445

440

410

383

360

340

344

352

344

324

310

302

328

405

400

396

396

14,788

477

1.34

1.54

29,330

Sept.

352 

328 

310

299

306

296

285

316

313

306

306

292

282

299

 257

254

250

250

246

240

232

229

222

222

243

250

246

250

 302

332

8,315

277

0.78

0.87

16 , 490

Calendar year 1950: Max 10,200 Min 255 Mean 1,620 Cfsm 4.54 In. 61.57 Ac-ft 1,172,000

Water year 1950-51: Max 5,330 Min 222 Mean 1,320 Cfsm 3.70 In. 50.01 Ac-ft 962,200

» Discharge measurement made on this day.

a No gage-height record; discharge interpolated.
SKAGIT RIVER BASIN 149

Ruby Creek below Panther Creek, near Newhalem, Wash.

Location. Lat 48°42", long. 120°58', in NW£ sec. 10, T. 37 N. , R. 14 E. (unsr"veyed), on 

right bank 200 ft downstream from Panther Creek, 4 miles upstream from mouth, and 13 

miles northeast of Newhalem.

Drainage area.--199 sq mi,

Records available. September 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,640 ft (by barometer).

Extremes.--Maximum discharge during year, 4,170 cfs May 23 (gage height, 7.50 ft); minimum, 

151 cfs Sept. 24; minimum gage height, 1.63 ft Oct. 3, 4.

1948-51: Maximum discharge, 8,640 cfs Nov. 27, 1949 (gage height, 10.95 ft); minimum, 46 cfs Feb. 10, 1949 (gage height, 0.70 ft).

Remarks.--Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. No diversion or regulation.

Rating tables, water year 195O-51, except periods of shifting control (gage height, 

in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 11

1.6 

1.8 

2.0 

2.5 

3.0

153

194

241

391

582

3.5 

4.0 

4.5

5.0 

6.0

817 

1,1OO 

1,44O 

1,83O 

2,720

1.7 151

1.9 205

2.1 265

2.5 405

Feb. 12 to Sept. 30

3.0 600

3.5 840

4.0 1,130

4.5 1,470

5.0 1,860

6.0 2,720

7.O 3,660

8.0 4,720

Discharge, in cubic feet per second, water year October 195O to September 1P51

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

26

29

30

31

 total

Mean

Cf sm

In.

Ac-ft

Oct.

177 

167

161

165

190

199

249

482

371

742

541

5O1

541

562

482

402

357

347

354

*377

347

319

301

292

412

394

402

398

364

347

319

11,262

363

1.82

2.10

22.34O

Nov.

310 

295

347

482

582

501

452

402

354

364

347

319

3O1

301

289

289

275

264

249

262

287

292

3O7

648

1,210

1,870

1.910

1,4OO

1,040

870

-

16,819

561

2.82

3.14

33,360

Dec.

717 

648

604

541

521

501

482

*452

50T

844

844

766

694

625

582

562

562

521

521

582

648

694

766

1,380

1.910

1,370

1.O70

925

817

742

670

23,062

744

3.74

4.31

45,74O

Jan.

fi562

521

501

459

444

426

408

402

388

374

371

357

351

335

316

*313

3O4

295

287

278

273

275

313

316

254

239

239

240

240

11,31O

365

1.83

2.11

22,430

Feb.

24O 

250

245

240

239

234

236

264

614

2,700

2,720

1,580

1,160

92O

790

690

620

56O

520

480

456

426

4O5

394

*377

356

342

328

_

-

-

18,386

657

3.3O

3.44

36,470

Mar.

318 

307

300

279

286

276

272

262

259

253

244

241

238

235

250

238

229

226

229

259

286

265

253

250

259

262

265

262

265

265

265

8,098

261

1.31

1.51

16.O6O

Apr.

290 

3675

460

 580

640

620

665

690

640

620

665

920

1,300

1,36O

1,300

1,33O

1.470

1,470

1,22O

1.O40

89O

815

765

790

790

865

865

865

815

765

-

25,865

862

4.33

4.83

51,300

May

715 

665

 715

920

1,400

1,660

2,270

2,270

2, ISO

2,450

3,76O

3,080

2,450

2,100

1,980

2, ISO

2,72O

2.63O

2,360

2,360

2,630

3,170

*3.960

 3,170

2,540

2,270

2,100

1,940

1,740

1,540

1,44O

67,365

2,173

10.9

12.59

133, 6OO

June

1.470 

1,660

1,900

2,O20

2,100

2,100

2,100

2,020

2,180

2,360

2,450

2,450

2,540

2,98O

3.36O

2,98O

2,360

2,450

2,270

2,100

2,020

2,100

2, ISO

2,180

2,270

2,180

*2,100

2,020

2.O2O

2,1OO

-

67,020

2,234

11.2

12.52

132,900

July

2,180 

2,200

2.300

2,000

1,700

1,300

1.10O

1,000

1,100

1,200

1,250

1,300

1,400

1.4OO

1,300

1,300

1,450

1,300

1,000

750

80O

850

950

950

900

750

6OO

65O

62O

580

58O

36,760

1,186

5.96

6.87

72,910

Aug.

580 

*580

560

540

520

480

460

480

480

500

476

422

377

360

360

363

342

324

324

338

346

342

314

279

253

247

279

335

293

346

30O

12,200

394

1.98

2.28

24,200

Sept.

265 

250

241

235

232

229

279

398

300

272

253

223

211

»2O2

199

205

217

223

214

191

177

167

159

156

226

177

159

177

272

436

-

6,945

232

1.17

1.30

13,780

Calendar year 195O : Max 5,65O Mln 161 Mean 872 Cfsm 4.38 In. 59.47 Ac-ft 631,200

Water year 1950-51 : Max 3,960 Mln 156 Mean 836 Cfsm 4.2O In. 57.00 Ac-ft 6O5,1OO

estimated on basis of 

" :r Creek near New-
150 SKAGIT RIVER BASH

Rosa Reservoir near Newhalera, Wash.

Location. Lat 48°44', long. 121°04', In SE£ sec. 35, T. 38 N., R. 13 E., at Ross Dam on

 Skagit River about 1 mile dovmstream from Ruby Creek and 9 miles northeast of Newhalem.

Records available. October 1946 to September 1951. Monthly elevations aid contents March 

1940 to September 1946.

Gage. Water-stage recorder. Datum of gage Is at mean sea level (city of Seattle benchmark). Prior to Sept. 24, 1940, staff gage on west shore at site Just uplake from Rosa 

Dam at same datum. Sept. 24, 1940, to June 28, 1943, water-stage reco-der at present 

site and datum; June 28, 1943, to Apr. 29, 1948, staff gage on west shire at site 

several hundred feet uplake from dam at same datum.

Extremes.--Maximum contents during year. 1,208,000 acre-ft July 27 (elevation, 1,582.37

 ft); minimum, 533,600 acre-ft May 6 (elevation, 1,504.14 ft).

1940-51: Maximum contents, 1,214,000 acre-ft July 10, 1950 (elevation, 1,582.88 ft).

Remarks.--Reservoir Is fromed by concrete dam completed to elevation 1,615 ft In 1949; 

storage began Mar. 11, 1940. Capacity, 1,202,920 acre-ft between elevations 1,250 ft 

(lowest outlet) and 1,582 ft (spillway crest). Dead storage negligible. Water used to 

supplement low flow of Skagit River through city of Seattle's Diablo and Newhalem powerplants. Figures given herein represent total contents.

Cooperation. Gage-height record collected in cooperation with city of Seattle.

Capacity table (elevation, In feetj and contents, In acre-feet)

(Prepared by Geological Survey on basis of 15 contour areas

furnished by city of Seattle)

1,500

1,510

1,520

1,530

1,540

509,240

571,110

641,230

718,200

800,920

1,550

1,560

1,570

1,580

1,590

888,320

980,600

1,078,800

1,182,800

1,291,700

Elevation, at 12 p.m.. In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

570.16

569.43

568.90

568.27

567.90

567.50

567.65

568.36

568.46

569.35

569.80

570.01

570.26

570.48

570.62

570.38

570.27

570.11

570.20

570.27

570.48

570.52

570.28

570.03

570.42

570.47

570.66

570.95

571.19

570.99

570.78

Nov.

570.63

570.37

570.26

570.72

571.45

571.55

571.50

571-.38

571.07

570.65

570.39

570.27

569.86

569.46

569.05

568.65

568.21

567.91

567.55

567.10

566.76

566.46

566.24

566.66

567.66

569.70

572.02

573.25

573.95

574.20

-

Dec.

574.23

574.17

574.26

573.98

573.65

573.40

573.20

572.89

571.96

571.81

572.51

572.88

573 . 10

573.13

573.05

572.94

572.84

572.67

572.63

572.67

5~72.86

572.86

572.52

573.06

573.89

574.08

574.56

574.78

574.82

574.86

574.28

Jan.

573.37

572.52

571.99

571.66

570.90

569.70

568.61

568.16

567.66

567.14

566.61

565.77

564.92

564.38

563.71

562.79

561.90

561.28

560.62

559.59

558.37

557.65

556.62

555.50

554.39

553.75

553.17

552.49

551.86

551.19

550.50

Feb.

549.81

549.17

547.86

546.35

544.84

544.09

543.16

541.93

542.25

545.92

548.88

550.27

550.84

550 . 85

550.41

549.38

548.33

547.21

546.07

545.22

544.75

544.45

544.71

545.23

545.72

545.68

545.98

545.78

_

-

Mar.

545.35

544.92

544.49

544.27

543.78

543.27

542.75

542.23

541.78

541.31

540.89

540.47

539.84

539.26

538.86

538.36

537.83

537.26

536.73

536.18

535.76

535.29

534.81

534.34

533.90

533.46

533.03

532.60

532 . 17

531.76

531.35

Apr.

530.95

530.50

529.10

527.95

526.88

525.82

524.83

523.86

523.07

522.01

520.97

520.35

519.99

519.70

519.38

519.04

518.81

518.72

518.47

517.89

517.11

516.20

515.21

514.27

513.25

512.28

511.42

510.59

509.71

508.72

-

Hay

507.65

506.52

505.75

504.75

504.23

504.16

504.77

505.54

506.22

507.45

510.16

512.22

513.31

513.78

514.23

515.47

517.18

518.65

519.74

520.91

522.14

524.33

527.78

530.36

532 . 13

533.43

534.51

535.37

536.06

536.67

537.11

June

537.64

538.79

540.32

541.68

543.07

544.28

545.58

546.78

548.42

550.26

552.01

553.61

555.40

557.87

560.75

563.36

565.69

567.32

568.60

569.74

570.76

571.80

572.43

572.88

573.79

574.91-

575.96

576.86

577.59

578.15

-

July

578.56

578.94

579.35

579.59

579.58

579.49

&7-9.04

578.34

578.32

579.05

579.43

579.79

580.35

580.95

581.58

581.69

582.07

582 . 13

582.22

582.23

582.02

582.05

582.34

582.12

582.15

582.31

582.19

582.22

582.21

582.08

581.89

Aug.

581.69

581.69

581.67

581.69

582.04

581.90

581.78

581.72

581.69

581.62

581.71

582.05

581.79

581.29

581.04

580.83

580.69

580.60

580.87

580.71

580.60

580.44

580 . 13

579.85

579.73

579.87

579.70

579.43

579.24

578.95

578.70

Sept.

578.59

578.58

578.70

578.42

577.90

577.49

577.29

577.38

577.32

577.01

576.76

576.30

575.86

575.37

575.09

574.93

574.45

574.08

573.75

573.31

572.88

572.48

572.32

572.07

571.48

570.98

570.44

570.10

570.16

570.60

-

Note. Add 1,OOO ft to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1950 to September 1951

Da-te

Calendar year 1950....

July 31.................

Water year 1950-51....

Elevation 

(feet)t

,570.4 

,570.8 

,574.2 

,574.3

-

,550.5 

,545.8 

,531.4 

,508.7 

,537.1 

,578.2 

,581.9 

,578.7 

,570.6

-

Contents 

(acre-feet)t

1,082,900 

1,087,000 

1,121,900 

1,122,900

-

892,800 

851,120 

729,470 

562,600 

776,410 

1,163,700 

1,203,000 

1,169,000 

1,084,900

-

Change in contents 

during monfi 

(acre-feet)

+4,100 

+34,900 

+1,000

+135,600

-230,100 

-41,680 

-121,600 

-166,900 

+213,800 

+387,300 

+39,300 

-34,000 

-84,100

+2.0OO

t Elevation and contents at 12 p.m.
SK/VGIT RIVER BASIN 151

Thunder Creek near Newhalem, Wash.

Location. Lat 48°40i, long. 121°04', in SE£ sec. 23, T. 37 N., R. 13 E., (unsurveyed), on 

right bank half a mile upstream from backwater from DIablo Reservoir, 8 miles east of 

Newhalem, and 20 miles northeast of Marblemount.

Drainage area. 98 sq mi, approximately.

Records available. October 1930 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,220 ft (from river-profile map).

Average discharge.--21 years, 612 cfs.

Extremes.--Maximum discharge during year, 3,870 cfs Feb. 10 (gage height, 8.54 ft); minimum, 140 cfs Mar. 14 (gage height, 2.19 ft).

1930-51: Maximum discharge, 8,900 cfs Nov. 27, 1949 (gage height, 12.14 ft), from 

rating curve extended above 2,900 cfs; minimum not determined, probably less than 50 cfs 

during period of ice effect or no gage-height record in February 1936.

Remarks.--Records good except those for periods of shifting control, which are fair. No 

diversion or regulation.

Revisions (water years).--W 1012: 1943.

Rating table, water year 1950-51, except periods of shifting control (gage 

height. In feet, and discharge. In cubic feet per second)

2.2

2.4

3.0

133

166

210

310

3.5

4.0 

4.5 

5.0

460

645

855

1,100

5.5 

6.0 

7.0 

8.0

1,380

1,710

2,480

3,370

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3 

4

S

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.

Ao-ft

Oct.

272

258

215 

298

410

556

824 

1,550

765

1.440

852

900

810

788

585

460

*410

442

548

565

442

577

341

338

852

548

495

460

395

365

350

17,451

562

5.75

6.61

34,570

Nov.

510 

290

585 

765

705

512

425 

362

512

500

282

262

245

255

222

225

210

197

180

188

238

255

265

1,020

1,920

2.520

1,850

1,200

878

725

-

17,463

582

5.94

6.63

34,640

Dec.

605 

530

460 

395

362

562

*532 

308

470

1,540

1,000

765

625

548

495

460

495

442

478

685

745

7b5

975

2.050

1,640

1,050

832

685

605

548

478

21,710

700

7.14

8.24

45,060

Jan.

425 

595

571 

555

308

282

268 

258

242

250

218

206

208

206

199

190

*180

184

172

166

166

172

163

182

505

410

295

250

258

215

201

7,640

248

2.51

2.90

15,150

Feb.

190

188

186 

178

172

163

190 

278

1,000

5.290

2,480

1,520

900

725

605

512

442

392

350

522

295

278

258

242

250

210

199

190

-

-

-

15,785

564

5.76

5.99

51,510

Mar.

*184 

17b

172 

170

163

159

154 

150

150

147

145

142

143

142

164

155

148

148

148

164

186

190

186

180

184

188

190

192

 201

206

206

5,233

169

1.72

1.99

10,380

Apr.

212 

245

308 

389

460

460

478 

495

460

442

460

565

765

855

788

7H8

832

852

685

605

548

478

425

425

442

478

478

495

*478

442

-

15,815

572

5.38

6.00

51,560

May

410 

585

595 

512

745

855

1,000 

975

,000

,260

.240

,570

,120

925

878

,050

,410

,260

,080

,080

,200

,540

,850

* ,500

,180

975

900

810

725

645

625

52,098

1,035

10.6

12.18

65,670

June

685 

810

950 

1,020

1,000

975

950 

950

,020

,120

,180

,200

,520

,540

.780

,600

,470

,410

,580

,290

,290

,550

,410

,440

,500

,500

,470

* ,440

,470

,600

-

58,120

1,271

15.0

14.47

75,610

July

1,680 

,71O

.780 

,600

,290

,150

975

,000

,150

,520

,550

,440

,600

,600

,570

,570

,680

,640

,350

,120

,150

,230

,410

,440

,380

,260

,200

,230

,200

,150

,150

42,375

1,367

13.9

16.08

84,050

Aug.

* ,150 

,150

,150 

,120

,100

,020

,020 

,100

,180

j23°

1,150

950

832

855

925

950

878

832

925

1,020

1,100

1,000

832

745

705

685

725

645

548

605

530

23,657

924

9.43

10.88

53,840

Sept.

548 

585

605 

605

605

685

1,010 

1,200

788

725

585

495

*548

565

605

685

765

765

685

548

478

460

442

46O

685

365

510

442

705

1.260

-

19,209

640

6.55

7.29

58,100

Calendar year 1950: Max 2,920 Mln 110 Mean 758 Cfsm 7.84 In. 10fa.34 Ac-ft 555, 8OO

Water year 1950-51: Max 3,290 Mln 142 Mean 717 Cfsm 7.52 In. 99.26 Ac-ft 518,700

Peak discharge (base. 2.400 cfs). --Nov. 25 (8 p.m.) 5.470 cfs (8.15 ft): Dec. 24 (7:30 p.m.) 2.83O

cfs (7.43 ft); Feb. 10 (1:50 p.m.) 3,870 cfs (8.54 ft); May 11 (1 p.m.) 2,560 cfs (7.0? ft).

* Discharge measurement made on this day.

Ijtote.--Shifting-control method used Mar. 28-51, Sept. 9-29. 

- 288995 O - 54 - 11
152 SKAGIT RIVER BASIN 

Stetattle Creek near Newhalem, Wash.

Location. Lat 48°43'40", long. 121°09'30", In NE£ sec. 6, T. 37 N. , R. 13 E., on left 

bank three-quarters of a mile upstream from mouth, 5-| miles northeast of Newhalem, and 

18^ miles northeast of Marblemount.

Drainage area. 21.4 sq ml.

Records available.--December 1913 to April 1915 (fragmentary), September 1933 to September 

I9"5TPublished as "near Marblemount" 1913-15.

Gage. Water-stage recorder. Altitude of gage Is 927 ft (by altimeter). Prior to Apr. 30, 

1915, staff gage at site half a mile downstream at different datum. Sept. 7 to Oct. 20, 

1933, staff gage and Oct. 21, 1933, to Sept. 2, 1937, water-stage recorder at site 150 

ft upstream at different datum.

Average discharge.--18 years (1933-51), 171 cfs.

Extremes. Maximum discharge during year not determined, probably occurred Feb. 10 during 

period of Indeterminate record; minimum, 25 cfs Jan. 24 (gage height, 1.24 ft, probably 

result of Ice jam upstream).

1913-15, 1933-51: Maximum discharge, 8,580 cfs Nov. 26, 1949 (gage height, 9.70 ft), 

from rating curve extended above 780 cfs on basis of slope-area determination of peak 

flow; minimum, 9 cfs Nov. 9-11, 1936.

Remarks.--Records good except those for period of no gage-height record and those above 

500 cfs, which are poor. No diversion or regulation.

Rating tables, water year 1950-51 (gage height, In feet, and discharge, In 

cubic feet per second)

Oct. 1 to Nov. 24 Nov. 25 to Sept. 30

1.5 

1.8 

2.0 

2.3 

2.6 

2.9

128

188

266

3.2 

3.6 

4.0 

4.5 

5.0

362

518

706

1,000

1,370

1.4 

1.6 

1.8 

2.0 

2.3

51

72

100

155

235

335

450

640

870

4.5 

5.0 

5.5 

6.0

1,210

1,620

2,090

2,620

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

53

46

M

112

156

137

502

480

272

562

306

272

207

168

125

99

 88

154

335

306

190

142

120

142

432

246

246

246

200 

170

142

6,700

216

10.1

11.64

13,290

Nov.

122

108

308

456

306

190

150

117

98

89

83

73

67

64

63

69

65

60

53

67

133

139

154

el, 100

el. 750

el, 200

e900

360

229 

178

-

8,751

292

13.6

15.21

17,360

Dec.

140

120

105

90

84

*92

100

98

*e380

*e 1,200

e600

366

244

185

168

178

262

214

250

472

540

508

555

el. 400

6700

300

202

160

134 

155

138

10,140

327

15.3

17.62

20,110

Jan.

118

110

113

103

88

77

72

68

63

58

57

56

57

58

68

*65

61

58

51

48

48

54

50

138

482

360

185

134

114 

111

111

3,236

104

4.86

5.62

6,420

Feb.

110

113

110

86

64

58

84

310

61,450

62.900

750

307

205

158

130

116

105

97

83

84

81

74

67

*61

58

55

51

49

;

-

7,821

279

13.0

13.59

15,510

Mar.

48

45

44

43

42

42

41

40

40

40

40

40

45

45

60

60

50

50

50

70

75

70

65

60

65

65

65

 73

80 

Si

84

1,721

55.5

2.59

2.99

3,410

Apr.

90

120

182

229

241

217

226

208

180

172

188

290

390 356"

296

307

342

328

232

182

151

134

130

144

178

192

200

220

 202 

178

-

6,505

217

10.1

11.30

12,900

May

151

154

153

238

352

370

378

338

370

536

810

464

318

250

272

394

454

360

318

338

422

575

*635

495

 360

328

300

250

220 

200

190

10,973

354

16.5

19.07

21,760

June

210

250

300

350

320

320

340

290

310

350

360

360

360

430

520

480

430

400

380

370

360

380

380

380

400

380

*352

342

363 

386

-

10,853

362

16.9

18.86

21,530

July

410

410

406

3*6

253

238

200

185

220

2(32

2135

293

304

296

286

282

286

262

205

170

172

198

205

211

205

178

170

175

170 

160

IfO

7,5F3

245

11.4

13.] 8

15,040

Aug.

*160

160

155

149

136

130

127

136

140

138

132

113

98

97

98

100

98

98

100

103

108

100

91

80

23

75

100

114

82 

97

81

3,469

112

5.23

6.03

6,880

Sept.

73

75

73

73

70

72

136

120

88

82

71

61

62

62

*64

71

78

77

70

59

53

51

49

59

125

81

62

163

m3,009

100

4.67

5.23

5,970

Calendar year 1950: Max 1,750 Mln 44 Mean 236 Cfsm n.o In. 149.50 Ac-ft 170,600

Water year 1950-51: Max 2,900 Mln 40 Mean 221 Cfsm 10.3 In. 140.34 Ac-ft 160,200

Peak discharge ( 

; Dec. 24 (

base. 1.100 eta). Nov. 25 (3 p.m. \ discharge unknown; Dec. 10 (E a.m.), discharge

unknown ; Dec. 24 (time and discharge unknown); Feb. 10 (1:30 a.m.), discharge unknown.

* Discharge measurement made on this day.

e High stages indeterminate; discharge estimated on basis of records for stations on nearby streams.

Note. No gage-height record Feb. 17, 22, 23, Mar. 9-27, May 27 to June 26; discharge estimated on 

basis of records for Cascade River near Marblemount.
SKAGIT RIVER BASIN 153

Skagit River at Newhalem, Wash.

Location.--Lat 48°40i, long. 121°15', in SE£ sec. 21, T. 37 N., R. 12 E., on right bank 

at powerplant of city of Seattle at Newhalem, a quarter of a mile upstream from Newhalem 

Creek, 11 miles upstream from Bacon Creek, and 16 miles upstream from Marblemount.

Drainage area. 1,160 sq mi, approxjjnately, of which 390 sq mi is in Canada.

Records available. December 1908 to May 1914 and October 1920 to September 19jl in reports 

of Geological Survey. October 1908 to September 1933 (monthly discharge only), in State 

Water-Supply Bulletin 5.

Gage. Water-stage recorder. Datum of gage is 400 ft above mean sea level, unadjusted. 

Trior to May 24, 1914, staff gage at site a quarter of a mile upstream at different datum. Nov. 15, 1920, to June 4, 1923, staff gage at site 500 ft upstream at same datum.

Average discharge. 43 years, 4,344 cfs (adjusted for storage in Diablo Reservoir since 

October 1929 and Ross Reservoir since March 1940).

Extremes.--Maximum discharge during year, 18,300 cfs Dec. 24 (gage height, 88.33 ft); minimum, 834 cfs Nov. 12 (gage height, 80.32 ft); minimum daily, 1,240 cfs Sept. 3.

1908-14, 1920-51: Maximum discharge, 63,500 cfs Nov. 29, 1909 (gage height, 22.0 ft, 

from floodmark, site and datum then in use); minimum, 54 cfs Nov. 1, 1943 (gage height, 

78.15 ft); minimum daily, 136 cfs Aug. 24, 1930.

Remarks. Records excellent. Water is diverted 3 miles above station and is returned to 

river at Seattle powerplant Just above station. Flow regulated by Diablo Reservoir (see 

p. 164) and by Ross Reservoir (see p. 150), having a combined capacity of 1,279,000 

acre-ft.

Cooperation. Gage-height record collected in cooperation with city of Seattle.

RevlsionsTwater years). W 512: 1909-14. W 1012: 1929.

Rating table, water year 1950-51 (gage height, in 

feet, and discharge, in cubic feet per second)

80.8

81.0

81.5

81.6

82.0

82.5

85.0

1,200

1,560

1,650

1,920

2,550

2,940

3,610

83.5

84.0

85.0

86.0

87.0

88.0

4,380

5,290

7,410

10,000

13,200

16,900

Discharge, In cubic feet per second, water year October 1950 to September 1931

Day

1

2

3 

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50

31

Total

Mean

Jto-ft

(t)

Oct.

2,740

5,960

4,070 

4. 650 

4,250

4,060

2,910

3,060

3,820

5,960

5,010

5,460

5,400

2,720

2.530

3,760

5,510

*5,580

3,800

3,640

2,960

2,550

5,580

5,720

4,080

3,910

3,870

3,540

5,140

4,090

4,100

110,210

5,555

218,600

+5,400

Nov.

4,220

4,090

4,090 

3,750 

3.170

4,240

4,260

4,340

4,940

4,940

4,800

3,450

4,150

4,560

4,390

4,540

4,510

4,100

4,030

4,590

4,700

4,840

4,400

5,920

9.680

9,260

6,770

5,780

5,810

6,270

-

148,590

4,946

294,500

+55,220

Dec.

6,020

6,030

4.910 

5,050 

5,580

5,800

5,390

5,000

9,250

 12,000

6,690

6,270

6,020

5,700

6,010

6,280

6,550

5,980

6,180

6,520

6,950

8,580

11,600

14.400

12,800

11,100

6,650

6,100

6,420

6,290

8,080

225,940

7,288

448,100 -700

Jan.

9.610

9,050

7,470 

6,240 

6,950

9,450

9,450

4.920

5,650

5,240

5,560

6,540

7,150

5,490

6,510

7,520

7,240

5,620

*5,600

6,170

8,750

5,550

6,550

7,740

9,520

7,6OO

5,900

5,020

5,680

5,280

5,300

209,460

6,757

415,500

-228,900

Feb.

5,320

5,700

8,520 

8,620 

8,550

5,720

6,370

9,370

9,960

11.000

7,860

6,400

6,050

7,100

8,140

8,960

9,080

9,060

8,990

8,400

6,590

5,670

5,450

5,190

4,920

4,640

4,450

4.200

-

-

199,860

7,158

596,400

-90,510

Mar.

 4.170

4,120

4,110 

3,740 

4,060

4,060

4,040

4,020

3,970

5,680

5.470

5,750

5,910

3,980

4,140

4,160

4,080

4,060

4,040

4,080

4,080

4,060

4,040

4,030

3,920

4,030

 4,030

4,050

4,040

4,060

4,050

125,970

5,999

245,900

-123,500

Apr.

4,030

4,110

5,500 

5,880 

5,620

3.490

4*120

9,640

9,590

10,100

9,300

8,200

9,350

9,010

8,660

9,890

9,420

9,180

8,990

8,220

5,180

10.600

10,000

8,340

8,530

8,600

8,620

8,750

8,570

8,490

-

231,960

7,732

460, 100

-116,200

May

8,540

8,470

7,160 

8,400 

9,020

9,220

9,400

9,560

9,490

9,780

11.400

10,700

9,550

9,500

8,570

7,190

8,210

8,550

8,110

7,830

8,020

 7,400

7,040

7,490

6,950

6,270

6,160

5,840

5,920

5,200

5.140

249,860

8,060

495, 600

h212,400

June

4,720

3,280

3,460 

4,520 

4,210

3,920

4,130

4,240

3,250

3.180

4,570

4,540

4,700

4,670

4,460

4,650

4,570

4,810

5,540

5,480

5,510

5,600

8,120

8,940

6,850

 5,540

 5,500

5,690

6,580

9.180

-

154, 190

5,140

505,800

H370.700

July

9,OSO

9,110

9,140 

9,610 

8,570

8,750

9,580

9.910

7,100

4,800

5,120

6,240

5,640

5,140

4,210

5,090

6,550

6,460

6,820

5,900

5,150

4,890

4,820

5,290

5,000

4,990

5,040

4,580

4.000

4,690

 4,510

195,340

6,501

587,500

+52,960

Aug.

4.590

4,180

4,500 

5,680 

2,400

4,050

4,500

4,160

4,210

4,170

5,510

1,520

4,030

4,020

3,720

5,880

4,010

5,220

1.440

5,680

5,810

5,990

5,990

5,880

5,220

1,520

5,810

3,710

3,740

5,790

3,760

112,090

3,616

222,500

-24,500

Sept.

2,780

2,500

1.240 

5,620 

4,030

5,850

5,920

5,580

2,970

5,850

5,660

4,190

4,150

4.460

5,890

 2,850

5,960

5,950

4,070

4,060

4,120

3,350

2,470

4,270

4,140

4,070

4,050

4,180

4,330

3,440

-

109,970

3,666

218,100

-82,610

Adjusted for change in reservoir contents

Mean

Cfsm

In.

Ac-ft

3,645

5.14

5.62

224,000

5,557

4.77

5.55

529,500

7,276

6.27

7.25

447,400

3,035

2.62

3.02

186,600

5,512

4.75

4.95

306,100

1,991

1.72

1.98

122,400j

5,779

4. 96

5.56

343, 9OC

11.51C

9.92

11.44

708, OOC

11,570

9.8C

10.95

676,500

7,164

6,18

7.12

440,500

3,220

2.78

3.20

138,000

2,277

1.96

2.19

155,500

Calendar year 1950: 

Water year 1950-51:

Max 14,400 

Max 14,400

Min 1,420 

Mln 1,240

Mean 5,917 

Mean 5,675

Ac-ft 

Ac-ft

4,284,000 

4,108,000

Adjusted

Calendar year 1950: 

Water year 1950-51 :

Mean 6,106 

Mean 5,689

Cfsm 5.26 

Cfsm 4.90

In. 71.45 

In. 66.57

Ac-ft 

Ac-ft

4,420,000 

4,118,000

* Discharge measurement made or. this day.

t Change In contents in Ross a .a Diablo Reservoirs in acre-feet.
it>'1 SKAGIT RIVER BASIN

Skagit River above Alma Creek, near Marblemount, Wash.

Location. Lat 48°36'25", long. 121 "21 35", in NE£ sec. 15, T. 36 N., R. 11 E., on right 

bank three-quarters of a mile upstream from Alma Creek and 7 miles no-th of Marblemount.

Drainage area.--1.260 sq mi, approximately, of which 390 sq mi is in Canada.

Records available. October 1950 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 365 ft (from river-profile map).

Extremes.--Maximum discharge during year, 28,000 cfs Feb. 10 (gage heigh1-,, 14.40 ft), from 

rating curve extended above 18,000 cfs; minimum, 1,410 cfs Sept. 23 (gage height, 4.87 

ft); minimum daily, 1,650 cfs Sept. 3.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by power-plants on upper Skagit River, and by Ross Reservoir ( see p. 150) 

and Diablo Reservoir (see p. 164).

Rating table, water year 1950-51 (gage height. In feet, and 

discharge, in cubic feet per second)

5.0 

5.5 

6.0

1,550

2,180

2,900

3,700

7.0 

8.0 

9.0

4,610

6,770

9,290

12,100

11.0 

12 .D 

13.0

15,100

18,600

22,400

26,400

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2 

3

4 

5

6

7

8

9

10

11 

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

5.600

4,500 

4,500 

5,200 

5,200

5,400

5,600

6,000

5,000

7.500

5,400 

4,800 

4,500

4,000

3,700

4,400

4,400

5,000

5,400

5,600

4,200

3,800

4,300

4,600

6,200

5,400

5,600

5,000

4,520

4,740 

4,830

152,890

4,932

303,300

Nov.

4,840

4,710 

5,140 

5,250 

4,520

5,120

5,000

4,900

5,410

5,430

5,290 

4,000 

4,520

4,940

4,860

4,920

4,920

4,480

4,440

4,710

5,210

5,440

5,120

8,240

13,400

13.800

10,700

7,730

7,150

7,250

181,440

6,048

359,900

Dec.

6,830

6,720 

5.540 

5,590 

6,050

6,670

6,260

5,730

10,100

*16,300

9,020 

7,760 

7,030

6,520

6,720

7,010

7,650

6,870

7,020

7,980

9,020

9,830

14,200

19.300

17,200

13,300

8,240

7,190

7,380

7,390 

8,500

270,920

8,739

537,400

Jan.

10,700

10,100 

8,500 

6,770 

7,250

10,100

10,100

5,690

6,080

5.660

5,720 

6,610 

7,480

6,030

6,540

7,770

7,670

5,960

5,960

6,370

9,290

5,690

6,680

8,240

11.500

9,560

6,820

5,860

*6,310

5,760 

5,710

228,480

7,370

453,200

Feb.

5,700

6,050 

8,650 

9,030 

5,930

6,390

6,590

10,700

14,900

24.800

19,000 

10,000 

7,760

8,080

9,510

10,200

10,200

10,000

9,900

9,370

7,090

6,260

5,920

5,660

5,320

5,100

4,890

4.650

-

250,650

8,952

497,200

Mar.

4,560

4,520 

4,500 

4,140 

4,420

4,410

4,400

4,350

4,330

4,030

5.840 

4,050 

4,260

4,330

*4,570

4,600

4,500

4,460

4,450

4,540

4.680

4,640

4,570

4,480

4,470

4,540

4,570

4,530

4,580

4,620 

4,570

137,510

4,436

272,700

Apr.

4,570

4,750 

4.550 

4,720 

4,650

4,390

4,900

10,300

10,700

11,100

10,300 

9,340 

11,000

10,400

*9,860

11.500

11,000

10,700

10,200

9,480

5,720

11,400

11,000

9,140

9,340

9,510

9,470

9,830

9,640

9,360

262,620

8,754

520,900

May

9,260

9,060 

7,860 

9,320 

10,200

10,700

11,000

11,200

10,900

11,900

14.600 

12,900 

11,200

10,600

9,810

8,520

9,900

9,930

9,240

8,990

9,340

*9,280

9,290

9,450

8,240

7,410

7,060

6,620

6,610

5.770 

5,800

291,960

9,418

579,100

June

5,490

4^500 

4,540 

5,690 

5,480

5,150

5,310

5,320

4,500

4,530

5,720 

5,670 

6,070

6,060

6,200

6,000

6,100

5,800

6,300

6,300

6,400

7,000

9,000

9,800

8,300

7,800

7,800

8,000

8,500

10.500

193,630

6,454

384,100

July

10,500

10,500 

10,400 

11.000 

9,200

9,600

10,000

10,500

8,200

5,800

5,800 

7,200 

6,800

6,300

5,500

6,100

7,200

7,000

*7,200

6,460

5,650

5,400

5,460

5,840

5,460

5,450

5,510

5,100

4^560

57120 

4,960

219,770

7,089

435,900

Aug.

4.900

4,670 

4,780 

4,210 

2,960

4,410

4,660

4,540

4,570

4,570

3,940 

2., 170 

4,140

4,300

4,050

4,190

4,280

3,550

2.030

3,930

4,050

4,420

4,310

4,160

*3,420

2,100

3,960

4,100

4,030

4,090 

4,110

123,600

3,987

245,200

Sept.

3,110

2,890 

1.650 

3,830 

4,260

4,050

4,250

4,140

3,340

4,110

3,960 

4,670 

4,430

4,780

4,200

3,200

4,310

4,190

4,360

4,340

4,360

3,720

2,740

4,430

4,600

4,390

4,240

4,520

5.220

4,660

120,950

4,032

239,900

Calendar year 1950 : Max - Min - Mean - Ac-ft -

Water year 1950-51 : Max 24,800 Min 1,650 Mean 6,670 Ae-ft 4,529,000

* Discharge measurement made on this day.

Note. No gage-height record Oct. 1-28, June 15 to July 19; discharge estimated on basis of 1 discharge measurement and records for station at Marblemount.
SKAGIT RIVER BASIN 155

Skaglt River at Marblemount, Wash.

Location.--Lat 48°32'10", long. 121°25'50", In NW£ sec. 7, T. 35 N., R. 11 E., on right 

 bank half a mile north of Marblemount and 1 mile upstream from Cascade Rive".

Drainage area. 1,360 sq mi, approximately, of which 390 sq ml Is in Canada. 

Records available. September 1943 to July 1944, October 1946 to September 1951.

Gage. Water-stage recorder, 

profile survey).

Datum of gage Is 305.1 ft above mean sea level (rlverAverage discharge. 5 years (1946-51), 6,580 cfs.

Extremes. Maximum discharge during year, 42,400 cfs Feb. 10 (gage height, 9.65 ft), from 

 rating curve extended above 20,000 cfs; minimum, 1,780 cfs Sept. 3 (gage height, 1.65

ft); minimum daily, 1,990 cfs Sept. 3.

1943-44, 1946-51: Maximum discharge, 59,300 cfs Nov. 27, 1949 (gage height, 11.37

ft), from rating curve extended above 20,000 cfs; minimum, 620 cfs Mar. 6, 1944 (gage

height, 0.55 ft); minimum daily, 1,190 cfs Feb. 25, 1944.

Remarks. Records good except those for periods of shifting control or no gage-height 

record, which are fair. Flow regulated by powerplants on upper Skagit River, and by 

Ross Reservoir (see p. 150) and by Diablo Reservoir (see p. 164).

Rating table, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge. In cubic feet per second)

1.7 

2.0 

2.5 

3.0 

3.5 

4.0

1,990

2,530

3,610

4,840

6,300

8,020

4.5 

5.0 

6.0 

7.0 

8.0 

9.1

10,000

12,200

17,100

23,000

29,800

38,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ac-ft

Oct.

a4.200

*a5,000

5,140

5,960 

6,200

6,400

6,900

7,910

6,740

10.300

6,620 

6,300 

5,810

4,940

4,500

5,180

5,050

5,740

6,760

7,100

5,360

4,700

5,180

5,480 

8,080

6,920

7,020

6,670

5,920 

6,300

6,360

190,740

6,153

378,300

Nov.

6,180

6,000

6,940

7,630 

6,570

6,680

6,400

6,250

6,610

6,690

6,450 

5.120 

5,500

.6,000

5,890

6,030

5,960

5,560

5,540

5,760

6,560

6,790

6,650

11,900 

18,400

19.300

15,100

10,000

8,620 

8,370

-

235,450

7,848

467,000

Dec.

7,350

7,560

6,330

6.280 

6,670

7,970

7,380

6,660

 11,700

21,000

11,100 

9,260 

8,230

7,440

7,480

7,950

8,960

7,760

8,420

10,000

10, 800

11,900

16,200

24.800 

20,400

15,000

9,630

8,360

8,260 

8,560

9,380

319,290

10,300

633,300

Jan.

11,200

10,600

9,380

7,440 

7,820

10,400

10,500

6,250

6,520

6,040

6.030 

6,860 

7,720

6,540

6,860

8,100

8,120

6.3SO

6,260

6,540

9,600

6,040

6,810

8,590 

13.800

11,400

7,870

6,610

6,910 

6,320

6,280

245, 770

7,928

487,500

Feb.

6,140

6,520

9,040

9,320 

9,300

6,880

7,350

12,500

20,400

37.700

20,800 

12,100 

9,700

9,320

10,500

10,900

10,800

10,600

10,400

9,950

7,740

6,820

6,460

6,220 

5,840

5,600

5,390

5.250

_

-

289,540

10,340

574,300

Mar.

,110

,110

,980

,680 

,840

,840

,840

,840

,710

,460

.350 

,460 

,710

,840

* ,250

,250

,110

,980

,980

5,110

5.390

5,250

5,110

5,110 

5,110

5,110

5,250

5,110

5,250 

5,250

5,250

154,620

4,988

306,700

Apr.

5.250

5,390

5,280

5,640 

5,740

*5,290

5,740

10,800

11,200

11,600

10,900 

10,400 

12,200

11,600

10,900

12.400

12,200

11,800

11,000

10,100

6,420

11,500

11,800

9,600 

9,930

10,100

10,200

10,700

10,500 

9,840

-

286,020

9,534

567,300

May

9,800

9,560

8,520

9,820 

11,300

11,800

12,300

12,300

12,000

13,400

17.600 

14,600 

12,300

11,500

10,800

9,680

11,400

11,200

10,200

10,200

10, 600

11,300

11,400

11,300 

9,620

8,560

8,100

7,670

7^540 

6,640

6.620

329,630

10,630

653,800

June

6,340

5.380

5,740

6,880 

6,690

6,260

6,330

6,220

5,640

5,820

6,770 

6,860 

7,320

7,590

7,850

7,380

7,410

7,080

7,800

7,800

7,800

8,000

10,300

11,400 

9,680

7,910

7,830

8,040

8,440 

11.500

-

226,060

7,535

448,400

July

11,700

11,800

11,700

12.000 

10,100

10,300

10,600

11,200

8,840

6,440

6,480 

7,960 

7,300

6,800

5,840

6,500

7,920

*7,770

7,930

7,060

6,100

5,880

5,960

6,290 

5,980

5,860

5,830

5,480

5.030 

5,310

5,330

239,290

7,719

474,600

Aug.

5.220

5,060

5,140

4,580 

3,380

4,610

4,890

4,760

4,810

4,810

4,330 

2,690 

4,200

4,430

4,260

4,360

4,380

3,790

2.400

3,940

4,200

4,560

4,430

4,280 

3,610

 2,450

3,910

4,230

4,160 

4,180

4,260

130,310

4,204

258,500

Sept.

3,270

3,120

1,990

3,820 

4,300

4,180

4,430

4,430

3,610

4,260

4,100 

4,790 

4,610

4,950

4,380

3,560

*>330

4,460

4,530

4,530

4,580

4,030

3,120

4,480 

5,170

4,710

4,560

4,710

5,830 

5.920

-

128,760

4,292

255, 400

Calendar year 1950: Max 24,800 Mln 2,750 Mean 8,404 Ac-ft 6,084,000

Water year 1950-51: Max 37,700 Mln 1,990 Mean 7,604 Ac-ft 5,505,000

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

stations at Concrete and above Alma Creek, near Marblemount.

Note. Shifting-control method used Oct. 3 to Nov. 28, July 20 to Sept. 26.
156 SKAGIT RIVER BASIN

Cascade River at Marblemount, Wash.

Location. Lat 48°31'45", long. 121°23 I 30", in SW£ sec. 9, T. 35 N., R. 11 E., on right 

bank 2 miles east of Marblemount and Z\ miles upstream from mouth.

Drainage area. ISO sq mi, approximately.

Records available. September 1928 to September 1951.

Sage.--Water-stage recorder. Datum of gage is 380.3 ft above mean sea level (riverprofile survey). Prior to Oct. 10, 1928, staff gage at same site at datum 0.76 ft 

higher.

Average discharge. 23 years, 989 cfs.

Extremes.--Maximum discharge during year, 9,650 cfs Feb. 10 (gage height, 8.89 ft); mini-

 mum, 326 cfs Mar. 11, 12 (gage height, 2.03 ft).

1928-51: Maximum discharge, 17,800 cfs Nov. 27, 1949 (gage height, 11.47 ft), from 

rating curve extended above 5,000 cfs by logarithmic plotting; minimun, 149 cfs Nov. 

15, 1929, but may have been less during January or February 1929, when stage-discharge 

relation was affected by ice; minimum gage height, 1.11 ft Feb. 8, 1937.

Remarks. Records good except those above 5,000 cfs, which are fair. No diversion or regulation.

Revisions (water years). W 832: 1936.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge. In cubic feet per second)

2.0 

2.3 

2.6 

3.0 

3.5 

4.0 

4.5

315

420

540

730

1,020

1,360

1,780

5.0 

5.5 

6.0 

7.0 

8.0 

9.0

2,290

2,910

3,610

5,300

7,400

9,920

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

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.

Ao-ft

Oct.

416

374

243

444

*758

758

1,360

1,970

1,320

3.040

1,780

1,520

1,260

1,180

930

785

680

870

1,080

1,120

900

758

680

655

1,740

1,290 

1,150

1,150

990

900

812

33,013

1,065

5.92

6.82

65,480

Nov.

812

785

1,220

1,560

1,520

1,150

960

840

730

680

630

590

544

520

500

524

496

472

440

480

612

655

705

2,470

3,960

4.400 

3,760

2,350

1,740

1,440

-

37,545

1,252

6.96

7.76

74,470

Dec.

1,220

1,050

930

840

785

1,080

960

*840

1,200

3,110

2,120

1,690

1,320

1,150

1,080

1,120

1,360

1,150

1,260

1,820

1,870

1,870

2,180

3.760

3,610

2,240 

1,780

1,520

1,290

1,290

1,120

48,615

1,568

8.71

10.04

96,430

Jan.

1,020

1,050

1,050

930

785

758

705

655

626

603

572

544

567

576

608

590

562

524

480

460

460

432

416

484

930

1.220 

*900

705

655

598

554

21,019

678

3.77

4.34

41,690

Feb.

524

540

516

480

456

432

655

1,220

4,420

8.870

5,880

3,250

2,240

1,740

1,440

1,260

1,080

990

900

840

785

705

655

626

594

549 

524

496

-

-

-

42,667

1,524

8.47

8.82

84,630

Mar.

472

448

440

432

416

396

378

364

364

346

332

360

399

385

*528

524

460

432

456

576

680

626

576

549

562

572 

562

536

558

572

554

14,855

479

2.66

3.07

29,460

Apr.

580

680

870

1,020

1,080

1,050

1,150

1,080

990

930

990

1,290

1.640

1,640

*1,520

1,560

1,640

1,560

1,290

1,120

960

900

812

812

870

900 

900

990

960

840

-

32,624

1,087

6.04

6.74

64,710

May

785

125

730

990

1,440

1,560

1,920

1,690

1,690

2,290

4.230

2,780

1,870

1,520

1,400

1,690

2,410

2,070

1,740

1,690

*2,020

2,650

3,180

2,470

1,970

1,600 

1,520

1,360

1,180

1,080

1,020

55,250

1,782

9.90

11.42

109,600

June

1.120

1,320

1,600

1,870

1,740

1,740

1,820

1,560

1,640

.1,870

1,920

1,920

1,970

2,410

2.840

2,530

2,240

2,120

2,020

1,970

1,970

2,070

2,070

2,070

2,120

2,120 

2,070

2,070

2,070

2,180

"

59,030

1,968

10.9

12.20

117,100

July

2^180

2,180

2,180

1,870

1,520

1,400

1,220

1,120

1,220

1,480

1,520

1,690

1,740

1,690

1,600

1,560

1,640

*1,600

1,360

1,120

1,080

1,150

1,260

1,260

1,220

1,120 

1,080

1,050

1,050

1,020

990

44,170

1,425

7.92

9.13

87,610

Aug.

990

960

960

900

870

840

812

812

840

900

870

730

630

616

630

680

655

621

626

705

758

705

621

544

512

*496 

520

612

488

608

504

22,015

710

3.94

4.55

43,670

Sept.

460

440

452

472

468

484

723

1,220

705

630

540

464

460

484

504

520

536

524

496

436

396

382

368

374

840

488 

3S8

399

785

*1.690

"

17,128

571

3.17

3.54

33,970

Calendar year 1950: Max 5,110 Mln 279 Mean 1,374 Cfsm 7.63 In. 1O3.64 Ac-ft 995,000

Water year 1950-51: Max 8,870 Mln 332 Mean 1,172 Cfsm 6.51 In. 88.45 Ao-ft 848,800

Peak discharge (base, 3,6OO cfs). Oct. lo (6:30 a.m.) 3,910 cfs (6.22 ft); Nov. 25 (7:30 p.m.)

6,720 cfs (7.74 ft); Dec. 1O (5:30 a.m.) 3,61O cfs (6.OO ft); Dec. 24 (9 p.m.) 5,880 cfs (7.27 ft);

Feb. 10 (10:30 a.m.) 9,650 cfs (8.89 ft); May 11 (1 p.m.) 5,110 cfs (6.90 ft).

* Discharge measurement made on this day.
SKAGIT RIVER BASIN 157

Sank River above Whitechuck River, near Darrington, Wash.

Location.--Lat 48°10>00", long. 121°27>45", in NW£ sec. 24, T. 31 N., R. 10 E., on right 

bank half a mile upstream from Whitechuck River and 9f miles southeast of Darrington.

Drainage area.--152 sq mi.

Records available. August to November 1910 (fragmentary gage heights only), October 1917 

to September 1922, August 1928 to September 1951.

Gage. Water-stage recorder. Altitude of gage is about 930 ft (from river-profile survey). Prior to Nov. 18, 1910, staff gage three-eighths of a mile dovmstreair at different datum.

Average discharge. 28 years (1917-22, 1928-51), 1,105 cfs.

Extremes. Maximum discharge during year not determined, probably occurred Feb. 10 during period of no gage-height record; minimum, 210 cfs Sept. 23, 24 (gage height, 2.77 

ft).

1917-22, 1928-51: Maximum discharge, 30,200 cfs Nov. 27, 1949 (gage height, 14.90 

ft), from rating curve extended above 6,200 cfs, by logarithmic plotting; minimum, 115 

Cfs Nov. 15, 16, 30, Dec. 1, 1936.

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. No diversion or regulation.

Revisions (water years).--W 752: 1932.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, In cubic feet per second)

2.8 

3.0 

3.2 

3.5

3.8

220

300

395

570

790

4.1 

4.5 

5.0 

5.5 

6.0

1,070

1,540

2,290

3,190

4,200

6.5 

7.0 

8.0 

9.0 

10.5

5,280

6,420

8,820

11,400

15,500

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

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.

Ac-ft

Oct.

324 

292

880

*1,230

1,720

2,150

1,500

4.690

2,490 

1,720

1,340

1,300

1,060

914

800

948

1,440

1,310

1,050

914

816

784

2,150

1,720 

1,900

2,080

1,600

1,350

1,210

42,233

1,362

8.96

10.33

83,770

Nov.

1,280 

*1,270

1,600

2,080

2,350

1,660

1,440

1,220

1,050

948

864 

784

720

664

704

736

672

605

556

133

1,070

1,340

1,170

3,310

4,510

4.690 

3,880

2,850

2,020

1,660

-

48,336

1,611

10.6

11.83

95,870

Dec.

1,340 

1,160

1,060

956

872

1,160

1,180

1.04O

*1,210

2,420

2,080 

1,909

1,500

1,290

1,340

1,440

1,900

1,600

1,600

2,700

2,920

2,920

3,800

4,780

5.070

3,310 

2,350

2,020

1,660

1,600

1,440

61,618

1,988

13.1

15.08

122,200

Jan.

1,240 

1,340

1,550

1,200

1,030

914

832

768

712

664

626 

598

672

872

816

792

688

612

563

521

507

487

448

619

1,780

2.420 

1,780

1,200

900

800

600

28,551

921

6.06

6.99

56,630

Feb.

600 

620

660

620

580

550

1,500

3,500

10,000

15.000

9,000 

4,000

3,000

2,200

1,800

1,500

1,400

1,250

1,140

1,090

1,000

916

853

799

758

718 

*661

626

-

-

-

66,341

2,369

15.6

16.23

131,600

Mar.

584 

558

528

516

504

486

468

450

439

428

422 

417

450

480

675

862

703

605

564

591

710

734

696

647

640

647 

647

640

633

647

654

18,025

581

3.82

4.41

35,750

Apr.

654 

682

817

1,020

1,160

1,180

1,220

1,250

1,190

1,150

1,220 

1,250

1,670

1,880

1,860

1,840

1,930

1.960

1,750

1,480

*1,240

1,120

1,030

970

934

925 

934

1,030

1,110

1,100

-

37,556

1,252

8.24

9.19

74,490

May

1,030 

934

862

880

1,200

1,480

1,750

1,860

1,800

2,150

4.840 

4,410

3,100

2,380

2,010

1,980

2,550

2,640

2,290

2,120

2,100

*2,550

3,580

3,580

3,100

2,460 

2,100

1,940

1,740

1,510

1,340

68,266

2,202

14.5

16.70

135,400

June

1.260 

1,290

1,540

1,800

1,800

1,800

1,880

1,870

1,750

1,780

1,920 

1,920

1,880

2,020

2.640

2,640

2,290

2,100

1,960

1,870

1,800

1,780

1,770

1,770

1,800

1,770 

1,710

1,660

1,620

1,590

-

55,280

1,843

12.1

13.53

109,600

July

1.580 

1,570

1,570

1,500

1,290

*1,110

1^040

961

826

970

1,040 

1,090

1,160

1,170

1,150

1,200

1,060

1,050

990

898

808

774

742

734

734

710 

675

661

640

612

598

30,913

997

6.56

7.56

61,320

Aug.

m540

528

510

498

480

462

*444

439

439 

434

406

380

360

355

355

345

340

350

375

370

336

322

300

292 

296

350

314

444

380

12,573

406

2.67

3.08

2A.940

Sept.

322 

296

292

284

276

276

336

862

498

406

375 

314

288

280

280

280

288

280

272

252

*240

228

220

220

640

492 

345

395

934

2.380

12,851

428

2.82

3.14

25,490

Calendar year 1950: Max 5,070 Mln 265 Mean 1,565 Cfsm 10.3 In. 139.79 Ac-f-. 1,133,000

Water Iter year year 1950-51: 1950-51: Max Max 15,000 ISJOOO Mln Mln 220 220 Mean Mean 1,322 1,322 Cfsm Cfsm 8.70 8.70 In. In. 118.07 118.07 Ac-f-. Ac-f-. 957,100 957,100

Peak discharge (base. 4.000 efs). Oct. 10 (10 a.m.) 6,700 cfs (7.48 ft); Nov. 25 (7 p.m.) 7,360 

:fs (7.67 ft); Dec. 25 (5 a.m.) 5,860 cfs (6.96 ft); probably Feb. 10 (time and discharge unknown); 

lay 11 (5 p.m.) 5,730 cfs (6.79 ft).

* Discharge measurement made on this day.

Mote. No gage-height record Jan. 28 to Feb. 18; discharge estimated on basis of records for station near Sauk. Shifting-control method used-Oct. 1 to Jan. 27, Apr. 19 to May 11.
158 SKAGIT RIVER BASIN

Sauk River near Sauk, Wash.

Location.--Lat 48°25'15", long. 121°33'45", in NWi sec. 19, T. 34 N., R. 10 E., on left 

b"a~nk 5 miles upstream from mouth, 5 miles southeast of Sauk, and 8 miles downstream 

from Suiattle River.

Drainage area. 714 sq mi.

Records available. August 1910 to August 1912, July 1928 to September 1951. Published 

as "near Suiattle Crossing, near Sauk" 1910-12.

Gage.--Water-stage recorder. Datum of gage is 266 ft (revised) above mean sea level

"(river-profile survey). Prior to Aug. 4, 1912, staff gages at various sites from

1 mile downstream to 5 miles upstream from present site and at various datums.

Average discharge. 23 years (1928-51), 4,177 cfs.

Extreme s.--Maximum discharge during year, 62,700 cfs Feb. 10 (gage height, 14.97 ft); 

minimum, 1,200 cfs Sept. 23 (gage height, 3.03 ft).

1910-12, 1928-51: Maximum discharge, 82,400 cfs Nov. 27, 1949 (gage height, 16.93 

ft); minimum, 572 cfs Dec. 5, 1929, but may nave been less during period of ice effect 

Jan. 10-27, 1930.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Tiversion or regulation.

Rating table, water year 1950-51 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Oct. 1 to Jan. 27, Feb. 6-9)

3.0 

3.5 

4.0 

4.5 

5.0

1,160

1,820

2,660

3,680

4,870

5.5 

6.0 

7.0 

8.0 

9.0

6,22O

7,710

11,100

15,000

19,700

10.0

11.0

12.0

13.0

14.0

25,000

31,200

38,000

45,400

53,700

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

1,540 

1,410

1.330

1,360

2,850

*4,130 

4,870

6,360

5,260

13.600

8,340

5,660

4,870

4,620

3,900

3,360 

2,950

3,460

4,740

4,620

3,790

3,250

2,950

2,760

6,420

6,220 

6,080

7,400

6,080

5,130

4,740

144,050

4,647

6.51

7.50

285,700

Nov.

4,870 

*S,390

6,510

7,400

8,340

6,360 

5,520

4,620

4,130

3,790

3,460

3,150

2,950

2,760

2,570

3,050 

2,850

2,660

2.480

2,936

4,870

5,390

4,500

11,500

14,300

17.600 

IS , 000

10,400

8,020

6,660

-

184,050

6,135

8.59

9.59

365,100

Dec.

5,660 

4,870

4,500

4,130

5.790

5,800 

5,660

4,740

*5,130

10,400

8,340

7,250

5,800

5,130

5,260

5,660 

7,560

6,220

5,660

8,990

10,000

9,670

11,700

15,900

16.700

10,400 

8,660

7,560

6,510

6,660

5,660

22 9,970

7,418

10.4

11.98

4S6AOO

Jan.

5,000 

5,800

6,660

5,260

4,500

4,020 

3,790

3,460

3,250

3,150

2,950

2,850

3,250

3,680

3,900

3,790 

3,460

3,050

2,850

2,760

2,760

2,660

2.480

3J360

8,020

ao.ooo

6,080

4,500

3,900

3,500

3,100

127/790

4,122

5.77

6.66

253,500

Feb.

2,900 

3,000

3,200

3,000

2,900

2.760 

5,260

12,400

35,100

53.700

33,800

15,900

11,100

8,660

7,400

6,220 

5,660

5,130

4,600

4,300

4,000

3,800

3,600

3,400

3,200

3,050 

2,900

2,800

.

-

-

253,740

9,062

12.7

13.22

503,300

Mar.

2,700 

2,600

2,500

2,400

2,300

2,200 

2,150

2,100

2,050

2.000

2,200

2,70O

2,660

2,570

3,680

*4.020 

3,150

2,760

2,660

3,050

3,570

3,460

3,150

2,950

2,950

3,050 

2,950

2,660

2,950

3,050

2,850

86,040

2,775

3.89

4.48

170,700

Apr.

m3,790

4,370

4,620

4,500 

4,870

4,740

4,370

4,130

4,130

S,OOO

6,360

*6,660

6,360

6,510 

6.950

6,800

5,940

5,130

4,620

4,250

3,900

3,790

3,900

4,130 

4,130

4,620

4,620

4,130

143,320

4,777

6.69

7.47

284,300

May

3,680 

3.360

3i 360

3,900

5,260

5,800 

7,250

6,950

6,510

8,340

16.400

12,200

8,990

7,400

6,660

7,100 

8,990

8,340

7,400

7,100

7,710

9,330

11,800

10,400

8,990

7,400 

7,100

6,660

5,940

5,390

5,000

230,710

7,442

10.4

12.02

457,600

June

5.130 

,520

,510

,100

,100

,250 

,710

,950

,800

,400

,710

,560

,710

8,340

10.400

9,670 

8,660

8,340

8,020

7,710

7,560

7,710

7,710

7,860

8,020

7,860 

7,710

7,560

7,560

7,710

-

228,850

7,628

10.7

11.92

453,900

July

m

7,710

7,100

5,660

5,000

4,500

4,250

4,250

5,130

5,130

5,390

5,660

5,520

5,260

4,870 

5,000

5,000

*4,fOO

3,790

3, £70 3,eeo

3,790

3.JOO

3,790

3,570 

3,5^0

3,250

3,3^0

3,150

3.050

147,460

4,757

6.66

7.68

292 f SOO

Aug.

5.050

2,950

2,850

2,760

2,660

2,570 

2,480

2,480

2,570

2,570

2,570

2,300

2,080

1,990

2,020

2,100 

2,OSO

1,960

1,940

2,070

2,220

2,150

1,940

1,790

1,680

1.640 

*1,670

1,910

1,680

2,130

1,860

68,670

2,215

3.10

3.58

136,200

Sept.

1,610 

1,560

1,520

1,530

1,530

1,520 

1,700

3,250

2,300

1,970

1,820

1,560

1,500

1,520

1,530

1,560 

1,570

1,570

1,540

1,450

1,340

1,29O

1.260

1,270

2,390

1,910 

1,460

1,4SO

2,760

6^360

55,600

1,855

2.60

2.90

110,500

Calendar year 1950 : Max 18,700 

Water year 1950-51: Max 53,700

Mln 1,330 Mean 5,997 

Mln 1,260 Mean 5,206

Cfsm 8.40 In. 114.01 Ac-ft 4,341,000 

Cfsm 7.29 In. 99.00 Ac-ft 3,769,000

Peak discharge (base. 12.000 cfs). Oct. 10 (1:50 p.m.) 18,700 ofs (8.96 ft); Nov. 25 (11 p.m.)

ft); Dee. 25 (1 a.m.) 21,700 ofs (9.49 ft); Jan. 26 (4 a.m.) 12,200 ofs (7.43 ft) 

Feb. 10 (6 a.m.) 62,700 ofs (14.97 ft); May 11 (12:50 to 2:30 p.m.) 19,700 ofs (8,99 ft).

23,900 cfs (9. SIS

Discharge measurement made on this day. 

Note. No gage-height record Jan. 28 to Feb. 5, Feb. 19 to Mar. 12; discharge estimated on basis 

of recorded range In stage, weather records, and records for nearby stations.
SKAGIT RIVER BASIN 159

Baker River at Concrete, Wash.

Location. Lat 48"33', long. 121M51 , in NW$ sec. 11, T. 35 N., R. 8 E., on left bank

800 ft dovmstream from Baker River powerplant, a quarter of a mile northeast of

Concrete, and three-quarters of a mile upstream from mouth. 

Drainage area. 270 sq mi.

Records available. September 1910 to March 1915, September 1943 to September 1951. 

Gage. Water-stage recorder. Altitude of gage is 175 ft (from river-profile map). Erior

to Mar. 5, 1915, staff gage half a mile dovmstream at different datum. 

Average discharge. 12 years (1910-14, 1943-51), 2,544 cfs. 

Extremes.--Maximum discharge during year, 29,700 cfs Feb. 10 (gage height, 16.20 ft),

from rating curve extended above 12,000 cfs; minimum, 68 cfs Dec. 4, 5 (ga^e height,

1.14 ft); minimum daily, 505 cfs Sept. 1-3, 15, 16, 23.

1910-15, 1943-51: Maximum discharge observed, 35,200 cfs Nov. 27, 194S (gage

height, 20.32 ft), from rating curve extended above 12,000 cfs; minimum, £1 cfs Feb. 7,

1949 (gage height, 0.20 ft); minimum daily, 142 cfs Jan. 1, 1949. 

Remarks.--Records good between 100 and 14,000 cfs, others fair except those for periods

of no gage-height record, which are poor. Flow regulated by Baker River powerplant

and Lake Shannon (see p. 164).

Rating tables, water year 1950-51 (gage height, In feet, and discharge, In cubic

feet per second) 

(Shifting-control method used Oct. 1 to Dec. 24)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 30

4.S 

5.0 

5.5 

6.0 

7.0

1,500 

1,910 

2,370 

2,8SO 

4,080

8.0

9.0

10.0

12.0

5,610

7,960

11,400

18,600

3.0 

3.5 

4.0 

4.5 

5.0

505

710

990

1,360

1,850

5.5 

6.0 

6.5 

7.0 

8.0

2,420

3,040

3,780

4,600

6,470

9.0

10.0

12.0

14.0

16.0

8,730 

11,400 

17,400 

2'<.000 

29,200

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

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

26

29

30

31

Total

Mean

te-f<

(t)

Oct.

1,760

1,910 

1.540 

1,740 

2,000

1,930

2,630

6,360

5,370

8,760

5,670 

3,770

3,120

1,990

1,880

1,900

1,910

3,460

4,820 

4,610

2,730

2,650

2,310 

2,090

4,590

3,880

4,060

4,930

3,900

3,150

»2,660

104,080

3,357

206,400

+1,540

Nov.

2,430

2,130 

3,120 

4,450 

4,350

3,050

2,490

2,350

1,770

1,670

1,440 

1,120

1,620

1,580

1,510

1,510

1,490

1,340

827 

1,540

1,570

1,790

1,500 

4,320

10,200

14.200

13,100

6,300

4,190

2,940

~

101,897

3,397

202,100

+180

Dec.

2,600

2,280 

2,250 

2,090 

1.450

3,150

»3,730

2,440

5,140

13,400

8,080 

5,350

3,620

2,840

3,250

3,390

4,540

3,580

4,420 

7,770

6,690

7,250

7,960 

14.800

1J.OOO

5,870

5,020

3,790

3,680

4,300

3,110

160,840

5,188

319,000 -340

Jan.

2,950

3,290 

3,380 

2,390 

a2,100

a2,200

a2,000

al,900

al,700

al,600

al,650 

al,550

a2,000

al,900

a2,000

2,280

2,000

2,210

al,700 

al,600

al,750

al,700

al.500 

a2,550

*a7.250

5,900

a3,600

2,910

2,540

1,900

1,890

75,890

2,448

150,500 -500

Feb.

1,960

1,900 

1,890 

2,040 

2,070

1,900

2,600,

6,880

18,000

28.000

19,700 

8,240

5,300

3,780

3,180

2,910

2,480

2,420

2,420 

2,360

2,420

2,420

1/880 

1,860

1.800

1,940

1,950

1,820

-

-

-

136,120

4,861

270,000

-8,280

Mar.

1,940

1,750 

985 

1,700 

1,880

1,960

2,040

1,950

1,910

1,910

1,770 

1,850

1,970

»1,880

1,820

1,820

1,880

1,650

1,770 

1,690

1,770

1,800

1,770 

1,710

1,550

1,800

1,800

1,750

1,750

1,730

1,670

55,225

1,781

109,500

-29,460

Apr.

1,600

1,770 

1,800 

1,810 

1,780

1,770

1,700

1,720

1,780

1,800

1,790 

1,830

1,740

1,640

1.590

*1,730

1,670

1,620

1,700 

2.390

2,390

2,260

2,050 

1,870

1,860

1,790

1,780

1,930

2,280

2,350

-

55,790

1,860

110,700

+38,260

May

2,130

2,180 

1,920 

1.890 

17716

3,120

3,660

4,060

2,900

4,180

8.380 

6,110

3,950

2,820

2,920

3,530

4,220

4,240

3,400 

2,870

4,100

4,850

»6,240 

6,670

»5,040

2,590

3,670

2,890

2,360

2,360

2,360

114,370

3,689

226,800

-2,680

June

2,160

2,360 

2,350 

3,550 

3,530

4,210

3,020

2,930

2,940

3,560

3,660 

3,530

4,000

3,870

4,920

5.100

3,980

3,610

3,380 

3,220

3,640

3,800

3,780 

3,690

3,820

3,750

3,650

3,690

3,870

3,880 "

107,450

3,582

213,100

+3,090

July

4,060

4.220 

3,990 

3,480 

3,010

2,300

2,360

2,360

2,360

2,360

2,360 

2,360

2,810

2,890

2,650

2,510

2,560

2,720

»2,360 

2,360

2,360

2,360

2,360 

1,820

1,890

1,960

1,850

1,600

1.090

1,860

1,870

77,100

2,487

152,900

-2,460

Aug.

1^830

1,810 

1,820 

1,810 

634

1,630

1,520

1,480

1,480

1,640

1,420 

1,090

1,380

1,540

1,570

1,670

1,680

530

512 

1,600

1,570

1,500

1,750 

»1,750

954

601

1,510

1,430

1,490

1,240

1,250

43,691

1,409

86,660

-3,320

Sept.

505 505" 

505

1,130 

1,170

1,100

1,040

1,700

874

1,550

1,670 

1,070

1,020

979

505

505

1,260

1,450

1,350 

1,260

1,350

524

505 

1,640

1,860

1,730

1,830

1,700

2.340

2,330 "

36,957

1,232

73,300

+4,110

Adjusted for change In lake contents

Mean

Cfsm

In.

Ac-ft

3,381

12.5

207,900

3,400

12.6

14.05

202,300

5,183

19.2

22.13

318,700

2,440

9.04

10.42

150,000

4,712

17.5

18.17

261,700

1,302

4.82

5.56

80,040

2,504

9.27

10.35

149,000

3,645

13.5

15.56

224,100

3,633

13.5

15.01

216,200

2,446

9.06

10.44

150,400

1,355

5.02

5.79

63,340

1,301

4.82

5.38

77,410

Calendar year 1950s 

Water year 1950-51!

Max

Max

14, 

28,

800 

000

Mln 

Mln

382 

505

Mean 

Mean

3,

2,

364 

930

Ac -ft 

Ac -ft

2,435, 

2,121,

000 

000

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

3, 

2,

367 

930

Cfsm 

Cfsm

12.5 

10.9

In. 

In.

169 

147

.25 

.30

Ac -ft 

Ac -ft

2,437, 

2,121,

000 

000

* Discharge measurement made on this day.

t Change In contents In LaVce Shannon, In acre-feet, furnished by Puget Sound Power & Light Co. 

a No gage-height record; discharge estimated on basis of powerplant records and records for nearby 

stations.
SKAGIT RIVER BASIN

Skagit River near Concrete, Wash.

Location. --Lat 48°32', long. 121°46', In sec. 16, T. 

dalles 2 miles downstream from Baker River and 2

35 N., R. 8 E., on right bank at 

miles southwest of Concrete.

Drainage area. --2. 700 sq mi, approximately, of which 390 sq mi is in Canaia. 

Records available. --September 1924 to September 1951.

Gage. Water-stage recorder. Datum of gage is 130.0 ft above mean sea level, datum of 

T929. Prior to Dec. 10, 1924, staff gage at same site at different ditum. Dec. 10, 

1924, to Oct. 27, 1937, water- stage recorder at present site at datum 12.7 ft higher.

Average discharge. 27 years, 14,380 cfs.

Extremes. --Maximum discharge during year, 139,000 cfs Feb. 10 (gage height, 38.99 ft); 

minimum, 4,490 cfs Sept. 23 (gage height, 14.53 ft); minimum daily, 5,400 cfs Sept. 3. 

1924-51: Maximum discharge, 154,000 cfs Nov. 27, 1949 (gage height, 40.8 ft); minimum, probably less than 2,160 cfs during period Oct. 1-24-, 1925, when recorder was 

not operating and gates in Baker River Dam were first closed; minimum daily recorded, 

2,610 cfs Nov. 14, 1936.

Maximum stage known, 69.3 ft, present datum, at site 200 ft upstream, from floodmarks (discharge, about 500,000 cfs); occurred about 1815. Records of other floods, 

at site 200 ft upstream, prior to establishment of station, are given in Water-Supply 

Paper 612.

Remarks. --Records excellent except those for periods of shifting control, which are good. 

Flow partly regulated by powerplants on Baker and upper Skagit Rivss, snd by Ross Resevoir 

(see p. 150), and by Diablo and Lake Shannon Reservoirs (see p. 164).

Rating tables, water year 1950-51, except periods of shifting control (gage height. In feet, 

and discharge, in cubic feet per second)

Oct. 1 to Feb. 10 Feb. 11 to Sept. 30

8,110

8,810

10,000

11,300

12,700

14,200

Discharge,

19

20,

21,

23

25

27

In

.0

.0

.0

.0

.0

.0

17,500

21,200

25,300

54,300

44,100

55,700

cubic feet

29,

31,

33,

35,

37.

.0

.0

.0

.0

.6

per secon

68,

81,

95,

109,

128,

500

500

200

000

ooo

d, water year

15.0 5,400

15.5 6,420

16.0 7,510

16.5 8,670

17.0 9,890

17.5 11,300

18.0 12,800

Note. --Same as

table above 27.0

19

20,

21,

23

25

27,

.0 16,

.0 19,

.0 24,

.0 33,

.0 44,

.0 55,

200

900

OOO

400

000

700

preceding

ft.

October 1950 to September 1951

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Total 

Mean 

Ac- ft

Oct.

a. no

8,370 

8,570 

9,050 

11,900

14,200 

15,500 

25,300 

20,800 

56.200

26,600 

18,200 

16 , 500 

13,600 

11,900

11,100 

11,100 

13 , 900 

17,500 

18,600

15 , 900 

11,900 

11,300 

11,300 

20,600

20,100 

19,500 

22,000 

18,200 

16,100 

* 15, 500

497,400 

16,050 

986,600

Nov.

14,800 

14,80O 

17,500 

21,600 

23,200

17,900 

16,100 

14,800 

15,900 

15,300

12,400 

10,800 

10,500 

11,100 

10,800

11,500 

11,500 

10,500 

9.780 

10,500

13,500 

14,800 

13,600 

50.60O 

40,600

61.000 

50,300 

34,300 

26,200 

22 , 400

585,980 

19,470 

* 1,158

Dec.

19,700 

17,900 

15,800 

15 , 100 

14.J.200

19,700 

»20,500 

16,800 

21,800 

49,100

33,800 

27 , 100 

22,000 

18,900 

19,300

20,500 

25,800 

22,000 

21,600 

31,100

35 , 400 

32,900 

39,100 

60.000 

59,400

37,200 

29,500 

24,500 

22,400 

25,700 

20,800

835,400 

26,950

Jan.

£2,8OO 

23,200 

24,500 

18,900 

17,500

19,700 

19,300 

15,500 

14,500 

13,300

13 , 000 

13,300 

15,100 

14 , 500 

14,800

16,800 

16 , 100 

14,200 

13,000 

12,400

16,100 

13,300 

12,700 

14 , 800 

30,100

52.900

"le^eoo

15,800 

14,200 

15,600

554,700 

17,250 

*1,061

Feb.

15,300 

13,600 

16,500 

16,500 

15,500

13,900 

16,600 

33,800 

73,700 

128,000

94,400 

49,700 

35,400 

29,000 

27,200

25,000 

23,600 

22,300 

21,500 

21,100

17,900 

16,200 

14,800 

31,700 

15,100

12,500 

12,200 

11.600

805,600 

28,700 

$1,594

Mar.

ll.ooo 

10,700 

9,890 

10,400 

10 , 400

10,100 

10 , 100 

9,890 

9,890 

9,390

9.150 

9,390 

10,400 

* 10 , 100 

11,900

11 ! 600 

11,000 

10,700 

11,300

12,200 

12,500 

11,900 

11,600 

11 , 600

11,900 

12,200 

11,600 

11,600 

12,200 

11,600

341,000 

11,000 

676,400

Apr.

11.600 

12,200 

13,400 

14,800 

15,100

* 14, 800 

15,100 

19,100 

20,700 

20,700

20,300 

20,300 

24,500 

24,500 

22,700

24,500 

25.000 

24,500 

22,300 

2 1 , 500

15,800 

19,900 

21,500 

17,900 

18,300

18,700 

18,700 

19,900 

20,500 

19,500

578,100 

19,270 

*1,147

May

18,300 

17,600 

16.800 

17,600 

22,300

24,000 

26,800 

27,200 

24,500 

29,400

39,' 600 

29,400 

25,400 

24,000

24,000 

28,600 

27,600 

24,500 

23,200

25,800 

*29,400 

34,900 

32,900 

28,600

22,500 

21,900 

19,900 

18,700 

16 , 800 

15.600

785,100 

25,330 

*1,557

June

15.400 

15,400 

16,500 

20,300 

19,900

20,700 

19,900 

18,700 

17,900 

19,500

20,700 

21,100 

21,900 

22,700 

27.200

26,500 

2i,000 

21,500 

22,300 

21,500

21,900 

22,700 

24,000 

25,400 

25,000

22,700 

21,900 

21,900 

22,300 

25,400

646,600 

21,500 

$1,283

JU1-,

26.800 

26,3OO 

26,300 

25,400 

21,500

20,300 

19,100 

19,500 

17,900 

16,200

15,800 

17,900 

17,900 

17,600 

16,200

15,400 

*17,?00 

17,900 

16,800 

15,100

13,400 

13,400 

13,700 

13,700 

15,400

I2,eoo

12,800 

11,900 

11.000 

11,600 

11,600

526,400 

16,980 

$1,044

Calendar year 1950: Max 61,000 Mln 6,130 Mean 20,210 Ae-ft 14,630,000 

Water year 1950-51: Max 128,000 Mln 5,400 Mean 18,220 Ao-ft 13,190,000

Aug.

11.500 

11,000 

11,000 

10,400 

8,200

9,590 

9,890 

9,890 

9,890 

10 , 100

9,640 

7,970 

7,740 

8,910 

8,910

8,910 

8,910 

7,740 

6,420 

7,740

8,910 

9,150 

8,910 

*8,910 

7,510

6.210 

7,070 

8,670 

8,200 

8,450 

8,450

274,350 

8,850 

544,200

Sept.

6,650 

6,000 

5.400 

6,420 

7,740

7,740 

7,970 

11,000 

8,200 

8,450

8,450 

8,200 

,740 

,970 

,290

,420 

,510 

,200 

,970 

,970

,740 

,420 

,600 

,290 

,890

9,150 

8,430 

8,200 

11,300 

17.200

244,450 

8,148 

484,900

Peak discharge (base. 50.000 efs).--Nov. 26 (2:30 a.m.) 77,000 cfs (30.26 ft); D>c. 10 (10:30 to 

11:30 a.m.) 54,500 cfs (26.79 ft); Dec. 25 (1:50 a.m.) 78,900 cfs (50.64 ft); Feb. 10 (2 p.m.) 

139,000 cfs (38.99 ft); May 11 (6 p.m.) 56,300 cfs (27.14 ft).

* Discharge measurement made on this day.

t Expressed In thousands.

Note. Shifting-control method used Feb. 15 to Apr. 2.
SKAGIT RIVER BASIN 161

Alder Creek near Hamilton, Wash.

Location. Lat 48°32', long. 121°57', in N£ sec. 18, T. 35 N., R. 7 E., on left bank at 

railroad trestle three-quarters of a mile upstream from mouth and 2 miles east of Hamilton.

Drainage area.--8.8 sq mi, approximately.

Records available. August 1943 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 123 ft (by altimeter). Prior to Nov. 15, 

1945, water-stage recorder at site 80 ft upstream at datum 1.10 ft higher. Nov. 15, 

1945, to Jan. 7, 1947, water-stage recorder at present site at datum 2.47 ft higher than 

present gage.

Average discharge. 8 years, 35.3 cfs.

Extremes.--Maximum discharge during year, 654 cfs Feb. 10 (gage height, 3.92 ft); minimum, 

6.4 cfs Sept. 16-24 (gage height, 0.51 ft),

1943-51: Maximum discharge, that of Feb. 10, 1951; minimum, 6.3 cfs Sept. 4-12, 

1944.

Remarks.--Records good except those for periods of no gage-height record, whict are poor. 

No diversion or regulation.

Rating tables, water year 1950-51 (gage height, In feet, and discharge. 

In cubic feet per second)

Oct. 1 to Feb. 10 Feb. 10 to Sept. 30

0.7 

1.1 

1.4 

1.9 

2.2 

2.5 

2.8 

3.1

12

32

59

135

196

269

347

430

0.5

.7

.9

1.1

1.3

1.5

1.7

6.2

13

105

134

1.9 

2.1 

2.3 

2.6 

3.0 

3.6

166

202

242

306

406

586

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

17.5 

17

15.5

16

21

22

24

28

26

19

54

45

36

32

28

26

24

34

45

49

41

36

34

31

32

31

37

41

39

 38

39

1,038.0

33.5

3.81

4.39

2,060

Nov.

37 

35

38

40

44

42

40

37

34

32

30

38

26

26

26

36

33

31

30

30

37

59

56

79

95

94

104 

95

78

66

-

1,438

47.9

5.44

6.08

2,850

Dec.

57 

49

45

40

38

 46

59

53

50

56

50

48

45

43

42

42

51

50

49

69

91

84

101

174

178

119

124 

112

90

101

82

2,238

72.2

8.20

9.46

4,440

Calendar year 1950: Max 264

Jan.

75 

115

150

107

84

70

63

58

52

50

47

44

60

59

75

72

70

61

54

51

63

58

52

77

 202

242

141 

99

81

67

59

2,558

82.5

9.38

10.81

5,070

Feb.

56 

66

65

60

59

56

88

160

419

§21

421

222

160

130

113

99

94

84

78

78

72

69

65

60

55

51

48 

45

-

_

-

3,550

127

14.4

15.00

7,040

Mar.

42 

38

35

36

37

35

34

33

32

31

30

 50

54

52

62

67

59

56

56

64

70

73

70

68

68

72

74 

70

70

69

65

1,672

53.9

6.12

7.07

3,320

Apr.

63 

63

64

64

*62

59

57

53

51

49

48

46

46

44

41

38

37

36

34

33

32

31

30

29

29

27

28

27

27

-

1,275

42.5

4.83

5.39

2,530

May

26 

25

23

23

22

22

23

23

22

22

46

37

28

26

25

24

23

22

22

22

21

21

20

22

21

 21

20 

20

20

21

19

732

23.6

2.68

3.09

1,450

June

18 

18

18

19

18

18

19

18

16.5

16.5

16.5

16.5

16.5

15.5

15.5

15

15

15

15

14.5

14.5

14.5

14

14.5

14

14

13 

13

13

13

-

471.5

15.7

1.78

1.99

935

July

it11

12

12

12

12

11

11

11

11

11

1011

11

11 »11

10.5

10.5

10.5

10.5

10.5

10.5

10.5

10.5

10.5

10.5 

10.5

9^1

9.9

9.9

338.2

10.9

1.24

1.43

671

Aug.

9^9 

9.6

9.6

9.6

9.3

9.3

9.0

9.0

9.0

9.0

9.0

9.0

9.0

8.7

8.7

8.4

8.4

8.4

8.4

8.2

8.1

8.0

8.0

7.8

7.8

7.7

7.6 

9.0

7^5

7.8

7.5

266.3

8.59

0.976

1.13

528

Sept.

7.2 

7.2

7.2

7.2

6.9

7.2

7.2

7,2

6.9

6.9

6.9

6.9

6.9

6.6

6.6

6.6

6.4

6^4

6.4

6.4

6.4

6.4

6.4

6.9

JU3

7.2

7.2 

7.2

7.2

8.7

-

210.1

7.00

0.795

0.89

417

Mln 10 Mean 46.1 Cfsm 5.24 In. 71.06 Ac-ft 33,340

Water year 1950-51: Max 577 Mln 6.4 Mean 43.3 Cfsm 4.92 In. 66.73 Ac-ft 31,310

Peak discharge (base. 140 ofa). Dec. 24 (10 p.m.) 249 cfs (2.42 ft): Jan. 3 (5:30 a.m.) 168 cfs 

(2.07 cfs); Jan. 25 (10:30 p.m.) 350 cfs (2.81 ft); Feb. 10 (9:30 a.m.) 654 cfs (3.92 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Feb. 23 to Mar. 11, June 25 to July 16, Aug. 20-28; discharge 

estimated on basis of weather records and records for stations on nearby streams.
162 SKAGIT RIVER BASIN

Day Creek near Lyman, Wash.

Location. Lat 48°30'05", long. 122°02'40", in NW£ sec. 28, T. 35 N., R. 6 E.. on left

bank at highway bridge, three-quarters of a mile upstream from mouth and 2f miles southeast of Lyman.

Drainage area.--38.1 sq mi.

Records available. July 1943 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 90 ft (from topographic map).

Average discharge. 8 years, 267 cfs.

Extremes. Maximum discharge during year, 4,510 cfs Feb. 9 (gage height, 7.72 ft), from 

rating curve extended above 1,300 efs on basis of logarithmic plotting; minimum, 9.5 

cfs part of each day Aug. 22-27, but may have been less during period of doubtful gageheight record In September.

1943-51: Maximum discharge, 5,570 cfs Dec. 28, 1949 (gage height, 8.35 ft), from 

rating curve -extended above 3,000 cfs on basis of logarithmic plottinf: minimum discharge, 5.9 cfs Feb. 1, 1945; minimum gage height, 0.64 ft Aug. 23, 241 , 1945.

Remarks.--Records good except those for periods of shifting control or dcubtful gage-height 

record, which are fair. No diversion or regulation.

Rating tables, water year 1950-51, except periods of shifting control (gage height, 

in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 9 Feb. 10 to Sept. 30

5.0 

6.0 

7.2

1,560

2,450

3,830

0.9 

1.1 

1.3 

1.6

8.0

14.5

22

38

1.9 

2.2 

2.5 

3.0

57

84

123

213

3.5 

4.0 

4.5 

5.0

345

530

810

1,180

5.5 

6.0 

6.5 

7.5

1,640

2,210

2,840

4,200

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

69

60

53

56

413

312

318

590

398

1.420

500 

303

221

174

140

113

100

1,040

770

540

309

229

189

170 

372

424

666

770

648

 500

468

12,335

398

10.4

12.04

24,470

Nov.

375

385

484

452

386

321

274

214

183

162

143 

126

116

113

146

393

274

207

170

219

390

350

485

1,080 

1,140

940

1.500

820

500

354

-

12,702

423

11.1

12.40

25,190

Dec.

282

239

239

2J07

214

 772

1,050

540

561

820

625 

440

315

271

368

412

648

361

331

1,290

1,050

820

1,440

1.600 

880

540

910

745

670

82O

496

19,956

644

16.9

19.48

39,580

Jan.

378

648

602

401

318

265

236

244

219

226

231 

212

500

397

720

460

347

277

239

209

372

282

234

567 

1.660

 1,290

625

416

325

274

234

13,408

433

11.4

13.09

26,590

Feb.

221

450

488

358

297

254

1,630

2,020

3,830

3.920

1,830 

744

494

384

366

303

245

213

211

272

209

170

148

137 

128

112

100

94

_

-

19,628

701

18.4

19.16

38,930

Mar.

87

82

79

80

77

73

71

67

66

63

3f§

 450

265

557

359

238

185

172

242

327

258

197

176 

217

242

222

185

260

252

209

6,137

198

5.20

5.99

12,170

Apr.

199

245

303

330

280

265

280

228

207

199

242 

398

398

 324

309

352

333

288

209

161

137

122

120

139

165

172

247

684

306

201

-

7,843

261

6.85

7.66

15,560

May

154

134

167

258

315

268

265

205

226

255

1.090 

426

278

226

213

250

220

172

149

151

180

207

211

224

170

 136

120

104

102

105

98

7,079

228

5.98

6.91

14,040

June

99

99

98

102

88

92

-86 107

79

75

70 

66

69

68

60

54

51

47

42

39

38

36

35

33

31

30

29

28

27

26

1,804

60.1

1.58

1.76

3,580

JUl-r

21

25

25

25

25

25

25

24

2?

22

2Z

20

2C

2C

IS. 5

IS. 5

IS. 5

19.5

19

 18.5

17.5

17.5

17

16.5 

16.5

16

15.5

14

14

13.5

13

613.5

19.8

0 . 5'30

0.60

1,220

Aug.

13

13

12.5

12

11.5

11

10.5

10.5

10.5

10.5

10.5 

10.5

 10.5

10.5

10.5

10

10

10

9.8

9.8

9.8

9.8

9.8

9.8 

9.5

9.5

11.5

28,

17

16. E

15.0

363.8

11.7

0.307

0.36

722

Sept.

14.5

13.5

13

13

13

12.5

12.5

21

15

13.5

12.5 

12

11.5

11

10.5

10.5

10.5

10

10

10

10

10

10

10.5 

60

28

22

30

202

256

-

888.5

29.6

0.777

0.87

1,760

Calendar year 1950: Max 1,890 Mln 20 Mean 351 Cfsm 9.21 In. 125.20 Ao-ft 254,400

Water year 1950-51: Max 3,920 Min 9.5 Mean 282 Cfsm 7.40 In. 100.32 Ao-ft 203,800

Peak discharge (base. 5.000 efs). Jan. 25 (9 p.m.) 3,570 cfs (7.10 ft); Feb. 9 (2 p.m.) 4,510 cfs 

^7/72 ft).

* Discharge measurement made on this day.

Note. Doubtful gage-height record Aug. 31 to Sept. 28; discharge computed on basis of trend of 

gage-height record and records for stations on nearby streams. Shifting-control method used Oct. 1 

to Feb. 6, July 16-23.
SKAGIT RIVER BASIN 163

Skagit River near Mount Vernon, Wash.

Location.--Lat 48°25'40", long. 122°20'00", In SE£ sec. 7, T. 34 N., R. 4 E., en drawrest 

of, and 150 ft downstream from bridge on U. S. Highway 99 and 1 mile north cf Mount 

Vernon.

Drainage area. 3,060 sq mi, approximately.

Records available. November 1940 to September 1951.

Gage. Water-stage recorder. Datum of gage is at mean sea level, datum of 192?.

Average discharge. 10 years (1941-51), 16,070 cfs.

Extremes.--Maximum discharge during year, 144,000 cfs Feb. 11 (elevation, 36.85 ft); minImum, 5,160 cfs Sept. 24 (elevation, 9.62 ft).

1940-51: Maximum discharge, that of Feb. 11, 1951; minimum, 2,740 cfs Oct. 26, 

1942 (elevation, 7.37 ft).

Maximum stage known, 37 ft In 1906, from Great Northern Railway high-water profile.

Remarks. Records good except those for periods of doubtful gage-height record or shifting 

control, which are fair. Some regulation by powerplants on Baker and upper Skagit 

Rivers, and by Rosa Reservoir (see p. 150 ), and by Dlablo and Lake Shannon Reservoirs 

(see following page).

Discharge, in cubic feet per second, water year October 195O to September 1951

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 

Ac- ft

Oct.

9,160 

S.560 

8,560 

8,560 

11,300

15,000 

15,000 

22,200 

25,800 

30,800

58.000 

21,600 

17,600 

15,000 

13,000

11,400 

11,600 

13,300 

19,000 

21,800

16,800 

13,500 

11,800 

11,800 

15,100

23,200 

19,600 

*24, 400 

22,100 

18,200 

17,100

530,640 

17,120 

*1,053

Nov.

15, 500 

16,000 

17,400 

21,800 

25,300

20,200 

17,600 

15,800 

14, 200 

13,700

12,800 

12,000 

10,500

11,100

10,900

11,800 

12,000 

11,400 

10,500 

10,500

13,000 

15,800 

15,000 

27,300 

38,100

65,000 

58,600 

47,800 

34,100 

26,500

630,000 

21,000 

*1,250

Dec.

23,000 

20,200 

18,200 

16,800 

 15 . 800

19,000 

24,100 

21,000 

19,600 

45,500

44, 900 

34,100 

26,200 

22,100 

21,000

22,100 

25,600 

26,200 

22,400 

30,500

41,300 

40,90O 

39,700 

55,600 

71.400

51,800 

38,500 

30, 800 

26,200 

27,700 

25,300

947,500 

30,560 

*1,879

Jan.

25,000 

25,900 

29,100 

23,500 

20,700

20,400 

21,000 

19,000 

16,000 

15,000

14,500 

14,200 

15,500 

17,100 

16,800

19,000 

18,200 

16,500 

14,700 

15 . 700

15,800 

16,500 

14,000 

*15,500 

27.6OO

43.700 

29,100 

21,300 

17,900 

16,600 

15,200

6O9,OOO 

19,650 

*1,208

Feb.

14, 500 

15,000 

17,100 

18,200 

18, 200

16,500 

17,300 

33,000 

58,800 

102,000

"138,000

81,800 

45, 300 

52,600 

28,400

25,900 

24,100 

25,000 

21,800 

21,800

19,600 

17,100 

15,500 

14,500 

14,000

15,200 

12,800 

11.800

871,800 

31,140 

*1,729

Mar.

11,600 

11,100 

dlo, 700 

dlO,400 

dlO, 800

dlO,700 

dlO, 500 

dlO,400 

dlO, 400 

dlO, 000

d9,800 

*d9 . 600 

11,800 

11,400 

12,300

14.700 

12,800 

11,800 

11,400 

11,800

15,200 

15,700 

13,000 

12,500 

12,300

12,500 

13,000 

12,500 

12,500 

13,000 

12,500

364,700 

11,760 

723,400

Apr.

12.500 

12,800 

13,700 

15,000 

 16,000

15,500 

15,200 

17,400 

20,700 

20,200

20, 200 

20,700 

23,500 

25.000 

23,800

23,800 

25,000 

25,000 

23,500 

22,100

18,800 

17,900 

21,000 

19,500 

18,500

18,800 

19,OOO 

21,000 

21,500 

20,200

587,400 

19,580 

*1,165

May

19,000 

18,200 

17,600 

17,400 

21,000

24,400 

25,500 

27,700 

25,600 

27,400

40,800 

50.000 

55,700 

28,000 

25,600

25,000 

27,100 

29 , 800 

27,100 

24,400

25,900 

28,400 

33,300 

35,700 

52,600

25,000 

23,000 

21,600 

20,200 

18,500 

17.100

818,400 

26,400

*1,623

June

16.300 

16,500 

16,500 

18,800 

*21,000

20,700 

20,700 

19,900 

19,000 

18,800

20, 700 

20,700 

21,800 

22,400 

25,300

27.100 

25,300 

22,700 

22,100 

22,400

22,100 

22,400 

23,000 

25,000 

25,900

23,200 

22,400 

22,400 

22,100 

23,800

651,000 

21,700

*1,291

July

26, 200 

26,200 

26.500 

25,900 

23,500

20,400 

19,900 

19,600 

19,900 

16,800

 16,300 

17,400 

18,200 

18,200 

17,100

15,800 

16,800 

17,900 

17,400 

16,300

14,500 

14,000 

14,000 

13,700 

14,000

13,500 

13,000 

12,800 

12,000 

11.400 

12,000

541,200 

17,460 

*1,073

AJg.

11.600 

11,600 

11,400 

11,400 

10,000

8,760 

10,300 

10,300 

10,000 

10,300

10,300 

9,380 

7,280 

8,960 

9,160

9,160 

 7,380 

8,960 

7,640 

6,740

8,960 

9,380 

9,380 

9,160 

8,760

7,460 

6.380 

8,760 

8,760 

8,560 

8,960

2f7,540 

9,269 

5f9,900

Sept.

8,000 

6,740 

6,380 

5.660 

7,640

8,000 

7,820 

9,820 

10,000 

8,180

8,960 

8,760 

8,180 

8,180 

8.0OO

7,100 

7,100 

8,180 

8,180 

8,180

8,000 

7,460 

6,560 

6,200 

9,160

10,700 

 8,360 

8,360 

10,000 

16,000

249,860 

8,329 

495,600

Calendar year 195O: Max 71,40o Mln 6,92o Mean 22,310 Ac-ft 16,15O,OOO 

Water year 195O-51: Max 138, OOO Min 5,66O Mean 19,420 Ac-ft 14,O6O,000

base.

74,000 cfs (29.08 ft); Feb. 11 (8:30 a.m.) 144,OOO ofs (36.85 ft); May 12 (3 a.m.) 55,6OO cfs 

(25.48 ft).

* Discharge measurement made on this day.

* Expressed in thousands.

d Doubtful gage-height record; discharge estimated on basis of 1 discharge measurement and records 

for station at Concrete.

Note.--Shifting-control method used Oct. 11 to Nov. 24, Mar. 21 to Sept. 5o.
164 SKAGIT RIVER BASIN

Reservoirs In Skaglt River basin, Wash.

Ross Reservoir, See page 150.

Dlablo Reservoir.--Water-stage recorder, lat 48°43', long. 121°08', In SE£ sec. 5, T. 37 

N., R.13 E. (unsurveyed), In Dlablo Dam on Skaglt River, 1 mile downstream from 

Thunder Creek and 6 miles northeast of Newhalem. Datum of gage Is at mean sea level, 

subject to adjustment to datum of 1929. Records available, October 1929 to September 

1951. October 1929 to September 1938, change in reservoir contents published with 

tables of monthly discharge for Skaglt River at Newhalem. Maximum contents during 

year, 89,220 acre-ft Sept. 18, 28 (elevation, 1,205.0 ft); minimum observed, 28,350 

acre-ft Mar. 13 (elevation, 1,100.1 ft), but may have been less sometime during period 

lake was lowered and well was out of water. Maximum contents during period 1929-51, 

90,600 acre-ft July 14, 1933 (elevation, 1,206.5 ft).

Reservoir is formed by concrete dam, completed in 1930. Capacity, 76,220 acre-ft 

between elevations 1,040 ft (bottom of outlet pipes) and 1,205 ft (top of taintor 

gates). Dead storage, 13,000 acre-ft. Crest of spillway is at elevation 1,187 ft. 

Water is used by city of Seattle for power development at Diablo ani Newhalem powerplants. Gage-height record collected in cooperation with city of Seattle. Figures 

given herewith represent total contents.

LakeSharmon. Water-stage indicator, lat 48°33', long. 121°44 I , in seT. 2, T. 35 N., R. 

8 E., on Baker River, half a mile north of Concrete and 1 mile upstream from mouth of 

Baker River. Datum of gage is at mean sea level, subject to adjustment to datum of 

1929. Records available, November 1925 to September 1951.

Reservoir is formed by concrete dam, completed in June 1927. Capacity, 132,500 

acre-ft between elevations 360 ft (lowest elevation for capacity operation) and 435 ft 

(spillway crest). Dead storage unknown. Water is used by Puget So'jnd Power & Light 

Co. for power development. Gage-height records furnished by Puget Sound Power & Light 

Co. Figures given herewith represent contents above elevation 340 ft (center line of 

outlet tunnel).

Monthly elevation and contents, water year October 1950 to Septemter 1951

Date

Dec. 31.. .............

Calendar year 1950..

Sept. 30..... ..........

Water year 1950-51. .

Dlablo Reservoir

Elevation 

(feet)t

1,191.7 

1,193.3 

1,193.7 

1,191.6

-

1,193.1 

,105.7 

,100.3 

,193.4 

,191.7 

,168.6 

,187.9 

1,199.7 

1,201.4

-

Contents 

( acrefeet )t

77,780 

79,OSO 

79,400 

77,700

-

78,910 

30,280 

23,420 

79,160 

77,780 

61,140 

74,800 

84,500 

85,990

-

Change In 

contents 

during month 

(acre-feet)

+1,300 

+320 

-1,700

+800

+1,210 

-48,630 

-1,860 

+50,740 

-1,380 

-16,640 

+13,660 

+9,700 

+1,490

+8,210

Lake Shannon

Elevation 

(feet)t

435.09 

435.77 

435.85 

435.70

-

435.48 

431.78 

417.88 

435.71 

434.52 

435.89 

434.80 

433 . 32 

435.15

-

Contents (airefe<st)t

156,440 

157,980 

158,160 

157,820

-

157,320 

149,040 

119,580 

157,840 

155.160 

158,250 

155.790 

152,470 

156.580

-

Change In 

contents 

during month 

(acre-feet)

+1,540 

+180 

-340

+2, -230

-500 

-8,280 

-29,460 

+38,260 

-2,680 

+3,090 

-2,460 

-3,320 

+4,110

+140

t Elevation and contents at 12 p.m.
SAMISH RIVER BASIN 165

Samish River near Burlington, Wash.

Location.--Lat 48°32'35", long. 122°20'25", in NE^ sec. 7, T. 35 N., R. 4 E., on left 

bank; 500 ft downstream from U. S. Highway 99 bridge, half a mile downstream from Friday Creek, and 5 miles north of Burlington.

Drainage area.--87.8 sq mi (revised).

Records available.--July 1943 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 45 ft (from topographic map). Prior 

To Dec. 1, 1948, water-stage recorder at site 500 ft upstream at different datum. 

Dec. 1, 1948, to Jan. 7, 1949, staff gage 200 ft upstream at datum 3.14 ft higher than 

present datum.

Average discharge.--8 years, 250 cfs.

Extremes. Maximum discharge during year, 4,030 cfs Feb. 10 (gage height, 10.23 ft); minimum, 11 cfs July 10 (gage height, 2.01 ft).

1943-51: Maximum discharge, 5,830 cfs Dec. 28, 1949 (gage height, 11.89 ft); minimum recorded, that of July 10, 1951.

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of doubtful or no gage-height record, which are poor. There is evidence of slight regulation and there may be some pumping for irrigation.

Rating table, water year 1950-51, except periods of doubtful 

gage-height record or shifting control (gage height, in 

feet, and discharge, In cubic feet per second)

2.1 

2.5 

2.8 

3.1 

3.5 

4.0 

4.5

14.

38

68

111

185

300

450

5.0 

5.5 

6.0 

7.0 

8.0 

9.0 

10.0

625 

820 

1,O50 

1,600 

2,250 

3,000 

3,850

Discharge, in cubic feet per second, water year October 1950 to September'1951

Day

1

2

3

4

5

6

7

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.

Ac-ft

Oct.

34

32

31

31

76

126

85

101

106

504

d290

d!60

154

123

103

91

65

165

346

336

224

165 

148

130

114

100

108

146 

*165

159

156

4,618

149

1.70

1.96

9,160

Nov.

137

126

173

169

204

183

193

167

144

132

121

113

108

128

150

224

244

303

258

237

265

590 

520

720

680

700

841

1.050 

740

572

-

10,192

340

3.87

4.32

20,220

Dec.

520

435

420

351

315

*405

466

468

390

536

485

450

378

333

316

363

420

405

351

405

590

536 

792

1,330

1.590

840

1,030

1,150 

840

840

700

18,258

589

6.71

7.73

36,210

Jan.

590

1,020

1.540

1,060

760

590

485

435

381

351

321

285

465

555

555

555

590

485

435

372

405

*450 

420

625

1,120

1,540

780

a 600 

aSOO

a450

a400

19,160

618

7.04

8.12

38,000

Feb.

a370

420

502

405

345

292

450

740

2,160

*3.760

2,960

1,560

1,050

840

720

625

572

555

502

555

485

420 

378

351

339

306

278

258

.

-

22,198

793

9.03

9.40

44,030

Mar.

237

*217

213

224

230

217

206

200

193

189

185

472

780

608

870

880

625

502

450

435

450

485 

435

390

384

405

366

333 

324

315

285

12,105

390

4.44

5.13

24,010

Apr.

268

263

263

258

244

230

226

213

202

191

181

191

*193

183

173

169

167

159

148

139

132

126 

123

121

120

114

He

177 

159

133

5,362

179

2.04

2.28

10,680

May

121

114

109

111

108

106

114

114

106

106

361

405

258

196

167

154

142

132

121

114

109

105 

111

121

114

105

98

92 

88

85

81

4,268

136

1.57

1.81

6,470

June

78

76

73

72

71

*69

72

71

66

64

61

60

60

60

56

55

53

51

49

47

44

42 

39

37

35

34

33

32 

3Z

32

1,626

54.2

0.617

0.69

3,230

July

31

30

31

31

31

31

30

30

29

28

27

27

 26

27

27

27

27

26

26

26

25

25 

24

24

25

24

24

23 

IS

23

23

831

26.8

0.305

0.35

1,650

Aug.

22

22

22

22

22

21

21

21

21

22

21

21

21

21

21

20

19.5

21

19

T§

19

19

*19

19

19

19

22

If

22

22

655.5

21.1

0.240

0.28

1,300

Sept.

21

21

21

20

20

19.5

20

20

20

19.5

19.5

19.5

19.5

19

18.5

18.5

18.5

16.5

18

18

18

1L.5 

18

19.5

M

26

*22

25 

25

34

628.5

21.0

0.239

0.27

1,250

Calendar year 1950: Max 1,460 Min 26 Mean 324 Cfsm 3.69 In. 49.99 Ac-ft 234,400

Water year 1950-51: Max 3,760 Mln 17.5 Mean 274 Cfsm 3.12 In. 42.34 Ac-ft 198,200

24 (9:30 p.m.) 1,720 

cfs (1.02 ft); Jan.

streams.

d Doubtful gage-height record; discharge estimated on basis of trend of gage-height record.

Note. Shifting-control method used Nov. 28 to Jan. 27, Feb. 1-5, Feb. 11 to Mar. If, July 16 

to-Rug. 23.
WHATCOM CREEK BASIN

Whatcom Creek below hatchery, near Bellingham, Wash.

Location.--Lat 48°45'10", long 122°25'40", in NW^SE^- sec. 28, T. 38 H., R. 3 E., on 

right bank in Whatcom Falls Park, seven-eighths of a mile downstream from Lake 

Whatcom and 2 miles east of Bellingham.

Drainage area.--56 sq mi, approximately.

Records available.--October 1945 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 200.00 ft above mean see level (city of 

Bellingham datum).

Average discharge. 6 years, 107 cfs.

Extremes.--Maximum discharge during year, 1,100 cfs Feb. 11 (gage heigft, 5.49 ft); minimum, 2.4 cfs Sept. 21, 24.

1945-51: Maximum discharge, 1,350 cfs about Dec. 29, 1949 (gage height, about 

6.0 ft, from recorded range in stage); minimum, that of Sept. 21, 24, 1951.

Remarks. Records good except those for periods of shifting control or faulty intake 

action, which are fair. Flow completely regulated by Lake Whatcom (usable capacity, 

about 28,800 acre-ft under normal operating conditions). City of Bellingham diverts 

about 30 cfs from lake for municipal supply.

Cooperation. Gage-height record collected in cooperation with city of Bellingham.

Rating tables, water year 1950-51, except periods of shifting control (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 10 Feb. 11 to Sept. 30

1.5 2.4

1.6 4.9

1.8 13.5

2.0 27

2.2 47

Note. --Same as

following table

above 2.2 ft.

Discharge, In cubic

1.

1.

2.

2.

2.

.6

.8

.0

,2

,4

feet per

3.0

10.5

26

47

74

second,

2.

3.

3.

3.

4.

,7

,0

,3

,6

,0

124

185

263

350

475

water year October 1950

4.

5.

5.

,5

,0

,5

655

865

1,100

to September 1951

Day

1 

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

4.1 

4.1

4.1

4.1

4.3

3.8

4.3

4.6 

4.6

4.9

4.6

4.6

4.6

4.9

4.6

4.9 

4.6

4.6

4.9

4.6

5.2

4.9

*5.2

5.8

6.2

6.2

6.2

6.6

6. 6

6.6

6.6

155.9

5.03

309

Nov.

iff 6.2

6.6

6.2

6.2

6.2

6.2 

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.9 

6.6

7.3

6.9

6.9

7.3

7.3

7.3

7.3

7.7

6.9

7.3

7.3

7.3

65

258.7

8.62

513

Dec.

163 

213

*214

210

205

202

205

205 

205

208

226

258

255

250

167

m115

153

241

269

266

329

395

458

440

458

458

458

440

425

8,321

268

16,500

Jan.

410 

425

475

475

458

425

410

380

353

33E

297

192

285

280

291

*303 

152

326

320

311

297

297

116

125

440

545

545

510

475

425

395

11,073

357

21,960

Fe.b.

365 

365

356

335

311

180

5.2

4.6 

119

580

1.060

1,080

*3,020

955

888

775 

695

598

510

369

191

9.7

9.2

9.2

8.7

8.2

8.2

*7.7

_

-

10,842.7

387

21,510

Calendar year 1950: Max 775 Mln 2.6

Mar.

7.2 

6.8

6.4

6.4

6.4

6.0

224

Iff

395

347

329

329

285

157

10.5 

9.7

9.7

9.2

9.2

9.7

9.2

9.2

9.2

9.2

9.2

8.7

8.7

8.2

7.7

7.2

3,235.7

104

6,420

Apr.

7.2 

7.2

6.8

7.2

7.2

7.7

8.2

 If?

e!?

8.7

8.7

8.7

8.2

7.7

7.7 

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.4

6.4

6.4

221.3

7.38

439

Mean 134

May

6.4 

6.4

6.4

6.4

6.4

6^0

6.4

6.4

6.8

6.8

8.7

7~.7

7.7

7.7

7.7 

8.2

8.2

8.2

8.2

7.7

7.7

8.2

7.7

7.7

8.2

8.2

8.7

8.2

8.7

8.7

234.6

7.57

465

June

8.7 

9.2

8.7

8.2

8.7

8.7

*8.7

7.7 

7.2

6.4

5.6

5.0

4.6

4.6

4.6

4.6 

4.6

4.6

5.0

5.0

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

182.4

6.08

362

JUy

5.2 

5.2

5.2

5.2

5.6

5.6

5.6

5.6

Tffl

6.0

6.0

6.0

6.0

5.2

Iff

5.2

5.6

5.6

5.6

5.6

5.6

6.0

5.6

5.6

5.6

6.0

5.6

5.2

5.6

173.8

5.61

345

Aug.

Iff

5.6

5.2

5.2

5.2

5.2

5.6 

5.2

5.2

5.6

5.6

5.0

5.0

5.0

5.0 

5.0

5.0

5.0

*5.0

*5.0

5.0

5.0

4.6

5.0

4.6

4.6

4.6

4.4

4.4

4^0

155.6

5.02

309

Sept.

175

4!o

4.0

4.0

4.0

3.6

4.0

3.8

3.6

3.6

3.6

3.6

3.6

3.3 

3.3

3.6

3.6

3.6

3.3

3.6

3.6

*4.0

4.0

4.0

4.4

4.4

4.4

4.4

114.6

3.82

227

Ao-ft 96,690

Water year 1950-51: Max 1,080 Mln 3.3 Mean 95.8 Ac-ft 69,360

* Discharge measurement made on this day.

Note. Shifting-control method used Oct. 1 to Dec. 3, Aug. 24 to Sept. 24. Faulty Intake action 

Feb. 21 to Mar. 7, Mar. 15 to Aug. 20j discharge computed using corrections based on outside gage 

readings.
NOOKSACK RIVER BASIN 167 

Nooksack River above Cascade Creek, near Glacier, Wash.

Location.--Lat 48°54'20", long. 121°50'50", in NW£ sec. 1, T. 39 N., R. 7 E., on left bank 

a quarter of a mile upstream from Cascade Creek, half a mile downstream from Dead Horse 

Creek, 4j miles east of Glacier, and 6 miles upstream from Glacier Creek.

Drainage area.--105 sq mi.

Records available. October 1937 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,245 ft (from river-profile map).

Average discharge. 14 years, 735 cfs.

Extremes.--Maximum discharge during year, 6,050 cfs Dec. 24 (gage height, 8.13 ft), from 

rating curve extended above 2,300 cfs on basis of contracted-opening determination of 

peak flow; minimum, 246 cfs Mar. 11 (gage height, 1.53 ft).

1937-51: Maximum discharge, 10,300 cfs Nov. 26, 1949 (gage height, 10.50 ft), from 

rating curve extended above 2,700 cfs on basis of contracted-opening determination at 

gage height, 8.13 ft; minimum, 73 cfs Feb. 16, 1949.

Remarks. Records fair. No diversion. Some regulation at low flow by powerplant at 

Excelsior.

Revisions (water years). W 1092: 1946.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

715

690 

665

5oT

1,080

1,020

1,660

2,530

1,550

2.930

1,750 

1.47O

1,220

1,050

930

848

792

930

1,28O

1,180

902

792

740

765

1,970

*1,320 

1,550

1,430

1,220

1,020

902

37,803

1,219

11.6

13.39

74,980

Nov.

820

765 

1,O80

1,510

1,390

1,020

9O2

820

765

740

715 

665

655

625

620

645

620

606

588

59?

635

645

665

1,080

1,700

3.260 

3,040

1,550

1,080

902

-

30,700

1,023

9.74

10.87

60, 890

Dec.

765

*665 

606

556

543

820

740

630

1,050

2.53O

1,790 

1,360

1,020

875

875

9O2

1,180

902

1,020

1,430

1,470

1,470

1,550

*5.980

2^240

1,360 

1,050

902

765

990

740

36,776

1,186

11.3

13.03

72,940

Jan.

660

650 

610

552

503

476

456

444

424

408

400 

390

396

393

460

436

408

*382

368

351

351

334

327

379

950

792 

556

476

456

432

408

14,607

471

4.49

5.17

28,970

Feb.

376

382 

368

351

340

314

566

848

1,880

5.940

2,730 

1,630

1,140

875

740

625

561

512

480

456

424

412

393

386

379

358 

344

334

_

-

-

22,164

792

7.54

7.85

43,960

Mar.

316

303 

303

303

290

280

*270

264

255

252

24£ 

574

303

280

337

320

299

290

296

327

358

344

334

327

337

344 

340

340

386

375" 393

9,693

313

2.98

3.43

19,330

Apr.

HE" 386

484

566

588

584

610

588

561

538

*566 

74O

9 go

950

848

875

960

930

740

635

570

534

502

498

525

534 

570

751

620

534

-

19,107

637

6.07

6.77

37,900

May

484

m520

715

792

960

93O

930

1,250

2.150 

1,590

1,220

1,020

990

1,250

1,390

1,250

1,080

1,O8O

1,220

1,590

2,030

1,670

1,250

1,080 

990

902

*820

740

715

33,503

1,081

10.3

11.87

66,450

June

575" 792

990

1,O80

1,080

1,110

1,020

990

1,08O

1,180

1,220 

1,220

1,360

1,550

1.630

1,550

1,390

1,360

1,280

1,320

1,360

1,360

1,390

1,430

1,390

1,390 

1.39O

1,430

1.47O

1,550

-

38,237

1,275

12.1

13.54

75,840

July

1,590

1.650 

1,590

1,390

1,140

1,020

96O

902

1,020

1,140

*1,220 

1,280

1,360

1,280

1,220

1,220

1,220

1,180

990

875

875

902

930

960

930

875 

848

848

848

792

79?

33,827

1,091

10.4

11.98

67,090

Aug.

 fH

765

740

690

635

635

665

690

715

665 

556

502

507

538

*556

570

538

570

650

665

606

507

452

436

436 

468

456

386

4?ff

396

17,999

581

5.53

6.38

35,700

Sept.

400

420 

424

424

432

448

579

615

464

436

376 

354

368

396

408

432

464

460

400

358

323

313

306

323

460

*316 

283

690

1,140

1.180

-

13,992

466

4.44

4.96

27,750

Calendar year 1950: Max 3,980 Mln 270 Mean 1,059 Cfsm 10.1 In. 136.96 Ac-ft 767,000

Water year 1950-51: Max 3,980 Mln 249 Mean 845 Cfsm 8.05 In. 109.24 Ac-ft 611,700

Peak discharge (base. 5.600 cfs). Oct. 8 (9:30 a.m.) 4,060 cfs (6.53 ft); Nov. 26 (10 p.m.) 4,18O 

cfs (6.97 ft); Dec. 24 (5 p.m.) 5,97O cfs (8.13 ft); Feb. 1O (12:30 p.m.) 4,550 cfs (7.13 ft). 

* Discharge measurement made on this day.

288995 O - 54 - 12
NOOKSACK RIVER BASIN

Canyon Creek at Kulshan, Wash.

Location . Lat 48°50'05", long. 122°08'05", In SE^SEt sec. 27, T. 39 N., R. 5 E., on left 

tank at Kulshan a quarter of a mile upstream from mouth.

Drainage area. 8.55 sq mi (revised).

Records available. July 1948 to September 1951.

Gage. --Water -stage recorder. Altitude of gage Is 350 ft (from topographic map).

Extremes . --Maximum discharge during year not determined, occurred Feb. 11 (gage height, 

8.44 ft); minimum, 1.0 cfs Sept. 15-24.

1948-51: Maximum discharge not determined, occurred Feb. 11, 1951; minimum, that 

of Sept. 15-24, 1951; minimum gage height, 0.59 ft Sept. 12-14, 1949.

Remarks . --Records good except those for periods of shifting control or no gage height record, which are fair, and those above 200 cfs, which are poor. No diversion or regulation.

Discharge, in cubic feet per second, water year October 195O to Septenber 1951

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

26

£7

£8

29

30

31

Total 

Mean 

Cfsm 

In. 

Ac-ft

Oct.

16 

14

12^5

12.5

31

55

68

106

68

246

85

53

40

31

26

22

20

131

£28

127

65

44

39

31

*29

30

41

64

55

45

40

1,875.0 

60.5 

7.08 

8.16 

3,7£0

Nov.

34

31

68

67

64

45

40

32

28

24

23

30

18.5

18.5

17.5

21

21

18.5

17

18.5

30

42

44

139

621

586

502

255

139

87

"

3,081.5 

103 

12.0 

13.40 

6,110

Dec.

61 

*46

41

35

33

71

100

76

75

400

255

175

93

68

73

120

232

145

108

224

255

175

279

 295 526

122

104

134

91

117

78

4,607 

149 

17.4 

20.04 

9,140

Jan.

60 

89

84

55

43

35

33

31

29

29

28

27

41

44

55

48

39

*31

26

23

25

22

20

98

750

328

122

67

a50

a40

a35

2,407 

77.6 

9.08 

10.47 

4,770

Feb.

a30 

43

38

31

28

26

138

404

1,030

1.400

al,2OO

a300

alSO

alOO

a70

60

53

47

43

41

37

34

32

29

27

25

24

22

-

-

-

5,462 

195 

22.8 

23.76 

10,830

Mar.

20 

19.5

19.5

19

a!8

a 18

a!7

*16.5

15.5

ii

14

28

52

37

I*

49

37

30

27

30

36

33

29

27

27

29

28

26

27

26

24

847.0 

27.3 

3.19 

3.68 

1,680

Apr.

1

31

42

42

40

45

45

47

40

37

*52

72

58

47

75

73

66

52

45

39

35

32

31

3£

33

35

46

49

40

1,328 

44.3 

5.18 

5.78 

2.630

May

34

30

29

36

51

61

72

56

53

72

215

143

86

64

56

69

77

60

48

43

49

72

104

123

89

60

50

42

34

£8

2,031 

65.5 

7.66 

8.83 

4.030

June

29 

54

38

47

42

44

48

59

57

58

40

58

42

47

45

40

54

51

29

28

28

28

27

27

26

£4

25

22

21

12

1,016 

53.9 

5.96 

4.42 

2.020

July

lp

16.5

17

15.5

a!4

al5

a!2

all

alO

a9* .6

.0

!s

.2

.6

.4

.Z

.0

.6

.6

.4

.2

.4

.0

.7

.7 -rl

5.6

254.7 

8.22 

O.961 

1.11 

505

Aug.

5.4

5.' 2

5.1

2.8

2.8

2.5

2.5

2.5

2.4

2.6

2.5

2.0

2.0

*2.0

2.0

1.8

1.8

1.8

1.6

1.6

TTi" 1.4

1.4

1.4

1.4

1.8

5.1

2.8

2.8

2.4

7O.O 

2.26 

0.264 

O.3O 

139

Sept.

2.0 

2.0

1.6

1.6

1.4

1.4

1.6

2.0

2.0

2.0

1.8

1.6

1.4

1.2

1.2

1.0

T7o

1.0

1.0

1.0

1.0

1.0

1.0

1.2

5.4

3.6

4.8

*4.8

9.5

59

99.1 

3.50 

0.586 

0.45 

197

Calendar year 1950 : Max 621 Mln e Mean 68.1 Cfsm 7.95 In. 108.18 Ac-ft 49,340

Water year 195O-51 : Max 1,400 Mln i.o Mean 63.2 Cfsm 7.39 In. 1OO.38 Ac-ft 45,77O

Peak discharge (base. 85O cfs (revised)). Nov. 25 (7:30 p.m.) 2,35O efs (4.61 ft); Dee. 24 (8:30 

p.m.) 973 cfs (3.58 ft); Jan. 25 (8:30 p.m.) 973 efs (3.6O ft); Feb. 11 (time ard discharge unknown) 

(8.44 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby streams.

Note. Shifting-control method used Nov. 25 to Jan. 28, Feb. 2-8, 1O, Feb. 16 to Mar. 4, Mar. 8 

to oMay ££, July 12-16.
NOOKSACK RIVER BASIN 169 

South Fork Nooksack River near Wlckersham, Wash.

Location.--Lat 48°39'50", long. 122°07'50", In lot 2, sec. 26, T. 37 N., R. 5 E., on 

left bank three-quarters of a mile upstream from Skookum Creek and 4 miles east of 

Wlckersham.

Drainage area.--103 sq ml.

Records available.--October 1933 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 385 ft (from river-profile map). Prior 

To July 9, 1934, staff gage at datum 2.6 ft higher.

Average discharge.--18 years, 722 cfs.

Extremes. Maximum discharge during year, 15,600 cfs Feb. 10 (gage height, 11.89 ft); 

minimum, 79 cfs Sept. 24 (gage height, 1.95 ft).

1933-51: Maximum discharge, 15,800 cfs Nov. 27, 1949 (gage height, 12.01 ft); 

minimum, 66 cfs Oct. 9, 1940, Sept. 11-13, 1944.

Remarks. Records good. No diversion or regulation. 

Revisions (water years).--W 832: 1935-36.

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.9

2.0 

2.2 

2.4 

2.6 

2.9

123 

169 

223 

32O

3.2 

3.6 

4.0 

4.5 

5.O 

5.5

455 

7OO 

1,000 

1,480 

2,050 

2,680

6.0

7.0

8.0

9.O

10.0

11.0

3,390

4,99O

6,830

8,880

11,100

13,4OO

Discharge, In cubic feet per second, water year October 1950 to September 1S51

Day

1

2

3

4

5

6

7

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

Cf sm

In.

Ae-ft

Oct.

272

241

226

253

954

968

1,O30

1,10O

888

5.640

1,430 

880

70O

570

472

410

382

1,860

2, ISO

1,59O

912

680

596

516 

616

735

*1,640

1,590

1,330

1,030

920

30,611

987

9.58

11.05

60,720

Nov.

770

728

1,330

1,370

1,21O

880

749

602

528

482

435 

396

369

364

356

540

482

430

378

420

661

826

888

2,220 

5.120

3,030

3,100

1,930

1,330

936

-

30,860

1,029

9.99

11.14

61,210

Dec.

7.63

642

576

*482

499

1,280

1,280

992

1,540

2,990

2,110 

1,480

1,000

848

1,140

1,330

1,930

1,280

1,860

3,750

2,750

2,420

3,040

5.740 

2,960

1,590

1,640

1,640

1,380

1,760

1,220

53,912

1,739

16.9

19.47

106,900

Jan.

1,010

1,600

1,480

1,020

826

694

635

616

570

583

552

510

798

756

872

798

714

570

516

482

482

482

*435

2,180 

7.430

3,140

1,430

968

826

749

635

34,359

1,108

10.8

12.41

68,150

Feb.

570

904

872

694

602

528

2,360

4,400

8,680

12.700

6,140 

2,360

1,540

1,200

1,050

872

770

674

642

654

570

510

466

450 

425

378

360

340

-

-

-

51,711

1,847

17.9

18.67

102,600

Mar.

324

306

306

306

296

285

279

263

259

250

*826 m

576

1.300

864

564

477

455

596

728

654

534

499

570

654

622

540

635

642

570

15,942

514

4.99

5.76

31,620

Apr.

570

721

904

1,010

928

826

928

791

694

668

728 

*1,220

1,380

1,230

1,140

1,230

1,270

1,110

826

674

609

583

546

609 

694

728

791

1.640

1,040

819

-

26,907

897

8.71

9.72

53,370

May

694

602

648

904

1,070

1,09O

1,260

1,000

992

1,280

2.960 

1,700

1,170

984

952

1,210

1,180

952

833

826

960

1,170

1,430

1,480 

1,110

826

791

 661

570

522

49*

32,321

1,043

10.1

11.67

64,110

June

570

642

714

798

728

791

721

590

602

642

602 

576

654

714

728

687

590

546

494

472

482

477

455

466 

440

415

400

392

378

374

-

17,140

571

5.54

6.19

34,000

July

360

352

344

320

269

250

232

217

209

238

232 

226

*223

212

198

192

190

190

172

164

155

152

150

150 

147

143

138

136

134

127

123

6,345

205

1.99

2.29

12,590

Aug.

123

121

119

117

115

111

109

107

107

107

107 

107

103

*101

100

98

98

96

94

94

94

94

94

94 

93

ii

105

312

138

123

117

3,489

113

1.10

1.26

6,920

Sept.

107

103

101

98

94

93

96

130

103

98

98 

94

91

88

86

85

85

85

85

83

80

80

80

83 

352

162

119

206

310

*1.100

4,475

149

1.45

1.62

8,880

Calendar year 1950: Max 5,740 Min 132 Mean 974 Cfsm 9.46 In. 128.35 Ao-f 1; 705,100

Water year 1950-51: Max 12,700 Min 80 Mean 844 Cfsm 8.19 In. 111.25 Ac-f; 611,100

Peak discharge (base. 4.800 cfs). Nov. 25 (8:30 p.m.) 5,160 cfs (7.06 ft); Dec. 2 (4:30 p.m.) 

,7OO efs (7.37 ft); Dec. 24 (6 p.m.) 8,040 efs (8.64 ft); Jan. 25 (6 a.m.) 7,83O efs (8.53 ft); 

Feb. eh. 1O~(8: 10 la-SO V 30 a.m.I &.m~.} 15.600 15,600 efs efs (11.89 (11.89 ftl. ft). 

* Discharge measurement made on this day.
170 NOOKSACK RIVER BASIN

Skookum Creek near Wickersham, Wash.

Location.--Lat 48°40'20", long. 122°08'30", In NE-J sec. 27, T. 37 N., R. 5 E., on right 

bank 500 ft upstream from mouth and 3^ miles east of Wiokersham.

Drainage area. 22.8 sq mi.

Records available. July 1948 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 400 ft (from topographic map).

Extremes. Maximum discharge during year, 2,100 cfs Feb. 10 (gage height, 7.42 ft), from 

rating curve extended above 400 cfs by logarithmic plotting; minimum, 17 cfs Sept. 23, 

24 (gage height, 1.73 ft).

1948-51: Maximum discharge, that of Feb. 10, 1951; minimum, that of Sept. 23, 24, 

1951.

Remarks.--Records fair except those for periods of no gage-height record, shifting control, and those above 500 cfs, which are poor. No diversion or regulation.

Revisions (water years).--W 1182: 1949.

Rating table, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

1.7 

1.9 

2.1 

2.3 

2.5

2.8 

3.1 

3.5 

4.0 

4.5

144

207

310

460

635

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

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.

Ac-ft

Oct.

41

37

53.

48

239

164

184

258

168

558

212

140

109

88

75

67

63

274

296

192

123

99

91

80

116

125

 264

282 

228

164

146

4,964

160

7.02

8.10

9,850

Nov.

120

112

225

225

183

127

111

93

78

72

66

61

55

53

52

88

76

64

55

60

84

112

154

343

514

600

530

313 

212

164

-

5,002

167

7.32

8.16

9,920

Dec.

133

109

101

*90

103

240

228

162

352

474

322

223

168

162

218

263

346

221

279

460

385

370

445

750

460

288

260

266 

230

290

216

8,594

277

12.1

14.02

17,050

Jan.

181

251

258

189

160

136

125

123

114

107

107

99

121

133

204

172

134

109

99

87

90

85

 78

300

890

444

218

a!80 

a!60

a!40

al20

5,614

181

7.94

9.16

11,140

Feb.

allO

a230

al80

116

107

96

417

579

1,280

1.690

862

400

288

218

196

166

144

127

118

114

101

93

85

81

77

72

67

64.

-

-

8,078

288

12.6

13.18

16,020

Mar.

61

56

55

55

52

50

49

46

45

44

 112

83

184

166

109

88

78

99

120

112

94

88

96

109

104

91 

94

105

91

2,658

85.7

3.76

4.34

5,270

Apr.

84

105

154

179

158

148

164

138

114

105

142

235

 238

192

185

192

205

179

131

102

90

84

78

87

105

105

139

fii

123

-

4,410

147

6.45

7.19

8,750

May

99

84

88

134

158

162

172

148

148

187

558" 508

185

152

146

177

181

144

121

118

144

179

223

214

160

123

111

 99 

88

84

8p_

4,875

157

6.89

7.95

9,670

June

91

101

102,

107

102

112

-56" 121

90

94

94

87

96

104

104

96

90

87

84

78

81

80

80

81

73

73

70

7? 

70

71

-

2,687

89.6

3.93

4.38

5,330

July

70

67

66

62

56

52

48

46

43

45

45

44

 47

46

43

41

41

42

41

38

35

34

34

34

35

34

33

32 

31

5T

31

1,347

43.5

1.91

2.20

2,670

Aug.

30

29

29

29

29

27

26

26

26

26

26

26

25

*24

23

22

22

22

22

22

22

22

22

21

20

20

53

64 

26

35

26

842

27.2

1.19

1.37

1,670

Sept.

23

22

21

20

20

20

22

24

22

24

22

20

19.5

19

19

19

19

19

18.5

18

17.5

17.5

12

20

77

26

22

39 

64

 152

863.0

28.8

1.26

1.41

1,710

Calendar year 1950: Max 900 Mln 17.5 Mean 165 Cfsm 7.24 In. 98.17 Ac-ft 119,400

Water year 1950-51: Max 1,690 Min 17 Mean 137 Cfsm 6.01 In. 81.46 Ac-ft 99,050

Peak discharge (base. 700 efs). Oct. 10 (9 a.m.) 1,090 cfs (5.60 ft); Nov. 26 (6 p.m.) 955 cfs 

5.24 ft); Dec. 10 (12:30 a.m.) 890 cfs (5.10 ft); Dec. 20 (5:30 p.m.) 730 cfs (4.67 ft); Dec. 24 

\6:30 to 7 p.m.) 1,110 cfs (5.56 ft); Jan. 25 (8 a.m.) 978 cfs (5.27 ft); Feb. 1C (10:30 a.m.) 2,1,. 

cfs (7.42 ft); May 11 (10 a.m.) 710 cfs (4.70 ft).

* Discharge measurement Bade on this day.

a Ho gage-height re^rrdj'discharge estimated on basis of records for stations on nearby streams.

Bate..--Shifting-control method used Nov. 24 to Jan. 27, Feb. 4 to May 10.
NOOKSACK RIVER BASIN 171

Nooksack River at Deming, Wash.

Location. Lat 48M8'35", long. 122°12'15", in lot 12, sec. 6, T. 38 N., R. 5 E., on left 

bank 800 ft downstream from South Fork and 1 mile southeast of Deming.

Drainage area. 580 sq mi.

Records available. September 1910 to March 1911 (gage heights only), July 193? to Septemher 1951.

Gage.--Water-stage recorder. Datum of gage is 203.6 ft above mean sea level, <?atum of 

~^929. Prior to Dec. 5, 1910, staff gage at site 1 1/8 miles downstream at different 

datum. Dec. 5, 1910, to Mar. 31, 1911, staff gage 4 miles downstream from riming at 

different datum. July 20 to Sept. 19, 1935, staff gage at same site at datnn 0.67 ft 

higher.

Average discharge. 16 years (1935-51), 3,131 cfs.

Extremes.--Maximum discharge during year, 38,500 cfs Feb. 10 (gage height, 15.69 ft), from 

rating curve extended above 25,000 cfs; minimum, 754 cfs Sept. 23 (gage height, 4.58 

ft).

1935-51: Maximum discharge, that of Feb. 10, 1951; minimum, 560 cfs Nov. 9, 10, 

1936, but may have been less during periods of ice effect.

Remarks. Records fair except those for periods of no gage-height record, whiG* are poor. 

No diversion. Slight regulation by powerplant at Excelsior.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

1,510 

1,340 

1.250

1,460

3,030

3,770

4,340

6,330

4,450

11.500

6,070

4,220

3,440 

2,830

2,440

2,170

2,020

4,540

6,590

5,560

5,660

2,850

2,540

2,260

 5,880

3,660

4,690

5,500

4,570

3,990

3,500

119,540

3,856

6.65

7.66

257 , 100

Nov.

5,000 

2,700 

5,600

4,500

5,500

3,900

3,300

2,700

2,400

2,200

2,100

1,900

1,800 

1,800

1.700

2,000

2,100

2,000

1,800

1,850

2,400

3,800

3,200

7,500

8,500

14.000

12,000

9,000

7,000

5,000

-

125,250

4,175

7.20

8.03

248,400

Dec.

 3,930 

3,550 

3,540

2,930

2.850

4,810

4,930

4,100

4,630

10,900

7,810

6,460

4,810 

4,100

4,340

4,810

6,200

4,930

4,810

8,090

8,090

6,990

7,810

15.800

15,000

7,810

6,990

6,990

5,810

6,590

5,500

193,550

6,244

10.8

12.41

385,900

Jan.

4,570 

5,560 

6,200

4,810

3,990

3,550

3,240

3,150

2,950

2,830

2,750

2,540

5,240 

5,440

4,100

5,880

5,440

5,050

 2,750

2,440

2,640

2,440

2.260

4,650

14.400

11,000

6,200

4,600

4,100

5,600

5,400

131,670

4,247

7.32

8.44

261,200

Feb.

3,100 

3,550 

3,770

5,150

2,930

2,640

5,640

9,890

23,300

54.900

26,800

 12,800

8,870 

6,680

5,580

4,530

4,100

3,700

5,520

5,520

2,860

2,600

2,440

2,550

2,270

2,110

2,050

1.880

_

-

-

191,090

6,825

11.8

12.25

579,000

Mar.

1,840 

1,750 

1,720

1,720

1,650

1,580

 1,550

1,480

1,450

1,580

1.550

1,740

2,950 

2,520

5,410

3.600

2,780

2,520

2,440

2,690

5,040

2,860

2,600

2,440

2,520

2,690

2,600

2,550

2,520

2,690

2,440

70,790

2,284

3.94

4.54

140,400

Apr.

2.350 

2,520 

2,950

3,410

5,520

5,130

3,520

5,040

2,860

2,690

 2,780

5,700

4.420 

4,320

3,900

4,100

4,420

4,210

5,410

2,950

2,690

2,520

2,550

2,550

2,520

2,600

2,780

4,100

5,500

2,950

-

96 , 160

5,205

5.55

6.17

190,700

May

2,600 

2.350 

2,550

2,860

5,600

5,900

4,550

4,100

5,900

4,860

8.290

5,980

4,420

3,800

5,600

4,520

4,750

4,210

5,700

5,600

4,000

4,860

6,250

5,980

4,750

3,800

5,600

5,220

 2,860

2,600

2,440

126,080

4,067

7.01

8.08

250,100

June

2.600 

2,860 

5,520

5,700

5,600

3,800

3,600

3,150

5,220

5,500

5,500

5,410

3,700 

4,100

4.520

4,000

5,600

5,500

3,410

3,520

3,410

3,410

3,410

3,410

5,410

5,520

5,220

5,220

5,520

5,410

-

105,730

3,458

5.96

6.65

205,700

July

5.500 

5,500 

5,500

5,150

2,600

2,270

2,110

1,960

2,050

2,440

2,520

 2,600

2,780 

2,780

2,600

2,520

2,600

2,440

2,190

1,860

1,860

1,960

2,050

2,110

2,110

1,960

1,880

1,960

1,880

1.840

1,840

75,560

2,566

4.08

4.70

145,500

A-lg.

1.780 

1,780 

1,780

1,690

1,580

1,520

1,520

1,560

1,620

1,670

1,650

1,450

1,320 

1,320

1,370

 1,350

1,360

1,350

1,400

1,530

1,600

1,520

1,310

1,170

1,110

1,070

1,180

1,620

1,090

1,110

1.030

44,390

1,432

2.47

2.85

88,050

Sept.

1,000 

1,040 

1,070

1,070

1,080

1,120

1,550

1,600

1,220

1,110

960

900

950 

995

1,000

1,080

1,180

1,180

1,050

910

853

824

231

806

1,600

1,030

824

 1,420

2,270

4.320

-

56,547

1,218

2.10

2.54

72,490

Calendar year 1950: Max 18,000 Mln 1,240 Mean 4,252 Cfsm 7.55 In. 99.50 Ac-ft 3,079,000

Water year 1950-51: Max 34,900 Mln 797 Mean 5,595 Cfsm 6.20 In. 84.12 Ac-ft 2,605,000

Peak discharge (base. 15.000 cfs).-

(time unknown) 16,500 cfs (11.52 ft);

-Oct. 10 (10 a.m.) 15,500 cfs (11.30 ft); probably Nov. 26 

Dec. 24 (8:30 p.m.) 25,500 ofs (12.95 ft); Jan. 25 (9 p.m.)

15,900 cfs (11.00 ft); Feb.-10 (12:30 p.m.) 38,500 ofs (15.69 ft).

* Discharge measurement made on this day.

Note. No gage-height record Oct. 31 to Nov. 50, Jan. 28 to Feb. 1; discharge estimate) on basis 

of recorded range In stage and records for nearby stations.
172 NOOKSACK RIVER BASIN

Nooksack River near Lynden, Wash.

Location. Lat 48°55'10", long. 122°29'10", in NE^NE^ sec. 36, T. 40 N., R. 2 E., on right

 bank 150 ft downstream from bridge on State Highway IB, if miles upstream from Pishtrap 

Creek, 2 miles southwest of Lynden, and 12 miles upstream from mouth.

Drainage area. 636 sq mi.

Records available.--December 1944 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 24.4 ft above mean sea level, datum of 1929 

(levels by Corps of Engineers).

Average discharge.--6 years, 3,838 cfs.

Extremes. Maximum discharge during year, 40,200 cfs Feb. 10 (gage height, 21.76 ft); min-

 imum, 925 cfs Sept. 23, 24 (gage height, 5.58 ft).

1944-51: Maximum discharge, 44,500 cfs Oct. 26, 1945 (gage height, 21.58 ft); maximum gage height, that of Feb. 10, 1951; minimum discharge, probably less than 850 cfs 

during period of no gage-height record in February 1949.

Remarks.--Records good except those for periods of shifting control or no gage-height

 record, which are fair. No diversion. Slight regulation by powerplant at Excelsior.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

Z

3 

4

5

6

7

a

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.

Ac-ft

Oct.

1,560

1,370

1.260 

1,300

2,140

3,900

3,900

6,040

5,060

12.500

8,400 

4,720 

3,770

2,920

2,500

2,200

2,020

3,210

7,000

7,360

4,440

3,270

2,810

 2,500

3,380

3,900

4,160

6,120

5,150

4,160

3,640

126,660

4,086

6.42

7.41

251,200

Nov.

3,150

2,760

3,750 

4,720

5,780

4,030

3,390

2,860

2,500

2,300

2,160 

1,980 

1,880

1,840

1.760

2,110

2,250

2,110

1,880

1,930

2,550

4,030

3,390

7,860

8,550

18 . 800

18,800

12,200

 8,120

5,950

-

145,390

4,846

7.62

8.50

288,400

Dec.

4,860

4,030

3,640 

3,150

2.920

4,710

5,150

4,580

3,900

13,700

10,100 

8,900 

5,950

4,720

4,720

5,300

6,640

6,120

5,150

8,410

12,OOO

8.9OO

9,300

17,800

23.900

10 , 100

8,120

8,310

6,460

7,000

5,780

234,320

7,559

11.9

13.70

464,800

Jan.

4,860

5,300

7,OOO 

5,150

4,300

3,640

3,390

3,150

3,000

2,900

2,800 

2,600 

3,300

3,640

4,030

 4,300

3,900

3,270

2,800

2,500

2,700

2,500

2.400

5,000

17,600

17.800

7,360

4,SOO

4,300

3,700

3,500

147,490

4,758

7.48

8.62

292,500

Feb.

3,300

3,700

3,770 

3,300

3,100

2.9OO

6,640

11,200

27,700

59.000

 34,600 

 18,800 

 9,920

7,180

5,780

4,900

4,400

3,900

3,500

3,500

3,000

2,7OO

2,600

2,500

2,400

2,20O

2,100

2,000

_

.

-

220,590

7,878

12.4

12.90

437 , 500

Mar,

1,880

 1,800

1,760 

1,760

1,680

1,650

1,600

1,550

1,500

1,450

1.400 

2,000 

3,150

2,860

3,900

5.000

3,510

3,030

2,760

2,920

3,390

3,390

2,920

2,700

2,760

2,920

2,810

2,600

2,650

2,860

2,600

78,760

2,541

4.00

4.61

^.56,200

Apr.

2,500

2,600

3,030

3,510

3,510

3,270

3,510

3,390

3,030

 2,860

2,810 

3,510 

4.860

4,720

4,300

4,440

4,720

4,440

3,770

3,270

2,860

2,650

2,500

2.450

2,600

2,650

2,760

3,900

3,900

3,150

-

101,470

3,382

5.32

5.93

201, 300

May

2,760

2,450

2.350

2,700

3,390

3,900

4,300

4,300

3,900

4,720

9,440 

9.710 

5,950

4,720

4,030

4,440

5,300

4,720

4,160

3,900

4,030

5,000

6,640

6,820

5,780

4,300

3,900

3,390

3,150

2,810

2,600

139,560

4,502

7.08

8.16

276,800

June

 2.700

2,860

3,270 

3,640

3,640

3,770

3,900

3,390

3,390

3,510

3,640 

3,510 

3,770

4,300

4.720

4,580

4,030

3,770

3,640

3,510

3,390

3,510

3,510

3,510

3,510

3,390

3,270

3,390

3,390

3,510

-

137,920

3,597

5.66

6.31

214,100

July

3.640

3,640

3,640 

3,390

2,860

2,500

2,350

2,100

2,300

 2,500

2,550 

2,600 

2.760

2,810

2,650

2,500

2,550

2,550

2,300

2,160

2,1OO

2,150

2,200

2,250

2,250

2,150

2,100

2,150

2,100

2.000

2,000

77,800

2,510

3.95

4.55

154,300

Aug.

1.900

1,900

1,900 

1,800

1,700

1,700

1,600

1,600

1,640

1,680

1,650 

1,500 

1,370

1,410

1,410

1,410

1,410

1,400

1,450

1,480

1,560

»1,520

1,370

1,260

1,230

1.160

1,200

1,520

1,300

1,200

1,200

46,430

1,498

2.36

2.71

92,090

Sept.

1,130

1,130

1,160 

1,160

1,160

1,200

1,260

1,520

1,370

1,230

1,130 

1,040 

1,040

1,070

1,100

1,130

1,200

1,230

1,160

1,100

980

952

952

925

 1,300

1,260

980

1,100

1,800

3.980

37,749

1,258

1.98

2.21

74,870

Calendar year 1950: Max 23,9OO Mln 1,26O Mean 4,636 Cfsm 7.29 In. 98.95 Ac-ft 3,356,OOO

Water year 1950-51: Max 39,OOO Mln 925 Mean 4,011 Cfsm 6.31 In. 85.61 Ac-ft 2,904,OOO

Peak discharge (base. 15.OOP cfs).--Oct. 10 (6 p.m.) 19,700 cfs (16.19 ft); No". 26 (5 a.m.) 

i.400 cfs (17.36 ft ; Dec. 10 (11:30 a.m.) 17,000 cfs (15.30 ft); Dec. 21 (4 a.m.) 15,300 cfs (14.7 

;); Dec. 25 (6 a.m. 31,40O cfs (19.63 ft); Jan. 26 (5 a.m.) 24.OOO cfs (17.63 ft); Feb. 1O (3 p.m. 

1,200 cfs (21.76 ft .

 Discharge measurement made on this day.

Note. No gage-height record Jan. 9-13, 19-23, Jan. 28 to Feb. 2, Feb. 4-6, 16-28, Mar. 6-12, July 

, 9, July 21 to Aug. 6, Aug. 11, 12, 18, 19; discharge estimated on basis of records for station at 

Demlng. 'emlng. Shifting-control Shifting ........ method ......_ used __ Feb. 13-15, Mar. 1-5, 13-15, Apr. 13 to July 7, July 1O-2O,

Aug. 7-10, 13-17, Aug. 20 to Sept. 30.
NOOKSACK RIVER BASIN 173

Fishtrap Creek at Lynden, Wash.

Location. Lat 48°57'50", long. 122°26'00", on north line sec. 16, T. 40 N., R. 3 E., at 

right bank on downstream side of bridge on State Highway 1A, 1 mile north of Lynden.

Drainage area. 24.1 sq mi, of which 18.5 sq mi is in British Columbia.

Records available. July 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 110 ft (from topographic map).

Extremes. Maximum discharge during year, 550 cfs Feb. 11 (gage height, 6.59 f 1;); minimum, 

3.4 cfs Sept. 23.

1948-51: Maximum discharge, that of Feb. 11, 1951; minimum, 0.4 cfs Sept. 10, 1949 

(gage height, 1.00 ft).

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of no gage-height record, which are poor. No regulation. Probably 

some small diversions for domestic use. Large high-water diversion through sloughs.

Rating tables, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Nov. 26 Nov. 27 to Sept. 30

1.0 2.2

1.2 7.1

1.4 13.0

1.7 26

2.0 40

2.5 64

3.0 90

3.4 115

1.3 2.6

1.4 4.3

1.6 9.6

2.0 28

2.5 55

3.0 90

4.0 179

5.0 295

6.5 533

Discharge, In cubic feet per second, water year October 1950 to September 195!

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

Ao-ft

Oct.

7.4

7.2

7.4

7.9

12

14.5

14.5

16.5

16.5

29

25

15

13

12.5

12.5

9.9

9.6

19.5

39

34

25

19

17

*16.5

16

15

15.5

15.5

17

21

25

525.4

16.9

1,040

. Nov.

21

18

25

28

25

22

19

17.5

15

14.5

15.5

13

13

13

15.5

21

58

43

34

32

52

67

59

72

82

115

114

96

84

*63

-

1,241.0

41.4

2,460

Dec.

47

58

56

52

28

57

47

54

47

77

118

118

80

59

55

66

85

75

65

90

114

97

118

241

257

149

131

179

149

126

104

2,919

94.2

5,790

Jan.

84

154

200

126

90

72

62

61

62

64

66

64

106

126

140

136

 101

79

68

64

77

84

76

154

590

548

158

116

87

74

64

5,555

114

7,010

Feb.

60

67

94

100

88

76

114

179

417

555

»499

502

211

169

144

126

126

126

126

194

159

126

105

94

86

80

72

68

-

-

-

4,541

162

9,010

Mar.

*65

60

61

66

a66

a6 4

a62

a 60

a58

aS6

a55

a!25

alSO

154

206

216

159

131

126

131

174

169

126

104

92

85

76

70

69

64

59

5,189

103

6,350

Apr.

55

52

50

48

45

44

42

41

40

*59

58

40

56

54

52

52

52

51

52

50

50

50

31

28

28

28

28

54

48

40

-

1,158

57.9

2,260

May

55

52

50

28

28

27

50

50

28

26

56

80

55

41

36

34

52

30

28

26

25

24

22

24

a27

a25

a23

3.22

a21

a20

 19

964

31.1

1,910

June

18.5

17

17

16.5

16

17

22

19.5

16.5

15

14.5

14.5

15

15.5

14

15.5

12.5

12

12

11.5

11

10.5

10

9.9

9.6

9.6

9.5

9.0

9.0

8.7

-

406.6

15.6

806

July

8 .

8.

8.

8.

8.

8.

8.

8.

*8.

7.

.9

.2

.6

" . 5

.9

.2

.2

.2

.2

.2

.2

.5

.5

.2

.2

.9

.6

251.6

7.47

459

A)g.

6.9

6.9

6.9

6.6

6.9

7^2

6.9

6.9

7.2

7.2

6.9

6.9

6.9

6.9

6.6

6.6

6.6

6.6

6.4

6.4

6.1

*6.1

5.8

5.6

5.6

sa

5.6

5.1

5.6

5.4

5.4

198.8

6.41

594

Sept.

5.1

5.1

.9

.7

.5

.5

.9

.9

.7

.5

.5

.3

.1

.1

.1

.1

.1

.7

.7

3.9

5.7

5.7

i.4

5.9

*4.4

4.1

5.9

5.1

5.1

10^5

156.2

4-. 54

270

Calendar year 1950: Max 282 Mln 5.5 Mean 50.4 Ao-ft 36,500

Water year 1950-51: Max 553 Mln 5.4 Mean 52.1 Ao-ft 57,740

Peak discharge (base. 220 cfs).--Dec. 24 (12 p.m.) 525 cfs (5.20 ft); Jan. 5 (4 a.m.) 222 cfs 

(4.40 ft); Jan. 25 (8 p.m.) 449 cfs (6.05 ft); Feb. 11 (1 to 2 a.m.) 550 cfs (6.59 ft); Mar. 15 

(10 p.m.) 245 cfs (4.77 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

streams.

Note. Shifting-control method used Feb. 14 to Mar. 16.
174 DAKOTA CREEK BASIN

Dakota Creek near Blaine, Wash.

Location. Lat 48«57'25", long. 122°39'30", in NWfcSWfc sec. 14, T. 40.N., R. 1 E., on 

right bank 3$ miles upstream from mouth and 4f miles southeast of Blaine.

Drainage area. 15.2 sq mi.

Records available. July 1948 to September 1951.

Page. Water-stage recorder. Altitude of gage is 20 ft (from topographic map).

Extremes . Maximum discharge during year, 753 cfs Feb. 10 (gage height, 9.92 ft); minimum, 0.7 cfs Aug. 23, Sept. 8; minimum daily, 1.0 cfs Sept. 5, 11-24.

1948-51: Maximum discharge, 826 cfs Dec. 27, 1949; maximum gage height, that of 

Feb. 10, 1951; minimum discharge, 0.1 cfs Aug. 11, 1950; minimum dally, 0.7 cfs Aug.

Remarks. Records good except those for periods of shifting control, whic1) are fair, and 

those for periods of doubtful or no gage-height record, which are poor. Probably some 

small diversions for domestic use. Some diurnal fluctuation at low flow from unknown 

cause.

Rating table, water year 1950-51, except periods of shifting control 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Jan. 23

1.3 

1.5 

1.7 

2.0 

2.3 

2.6

1.6

5.6

13

28

43

59

3.0 

3.5 

4.0 

4.5 

5.0 

6.2

83

120

160

205

255

391

1.2 

1.4 

1.7 

2.0 

2.3 

2.6

Jan. 24 to Sept. 30

0.6

3.3

13

28

43

61

3.0 

3.5 

4.0 

4.5 

5.0 

6.0

121

157

197

239

330

7.0

8.0

9.0

10.0

height,

430

535

645

765

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Ae-ft

Oct.

1.9

2.1

ill

1.9

3.9

3.9

3.7 

4.4

4.6

8.JL

5.2

3.9

3.7

3.3

2.9

2.7

2.7

3.9

6.5

5.6

4.4

3.9

3.5

3.3 

3.3

 3.4 

4.4

4.2

4.6

4.9

4.4

121.0

3.90

0.257

0.30

240

Nov.

4.2

5.9

5.4

5.2

4.9 

4.4

4.2

3.. 9

3.9

3.7

3.7

4.4

4.4

9.6

12.5

13.5

12

15

45

73

48

97 

77

112

44

37

*28

-

755.4

25.2

1.66

1.85

1,500

Dee.

24

23

30

24

20

41

40 

44

34

127

116

94

53

40

48

83

124

73

58

83

97

83

146

388 

315

116 

116

187

124

124

83

2,988

96.4

6.34

7.31

5,930

Calendar year 1950: Max 519

Jan.

59

218

262

100

61

46

*

63

65

65

50

50

52

218

169

*112

75

64

64

120

108

80

187 

601

386 

107

80

65

55

45

3,707

120

7.89

9.07

7,350

Feb.

40

45

55

57

51

41

118 

230

587

717

"521

117

104

78

66

52

57

63

53

121

73

50

38

34

31

28 

26

1*

-

-

3,477

124

8.16

8.51

6,900

Mln 1.6

Mar.

 23

22

22

30

30

28

25 

23

22

21

20

60

173

230

474

344

165

118

104

100

110

93

63

49 

42

38 

32

28

28

26

24

2,567

82.8

5.45

6.28

5,090

Apr.

*2"T 22

19.5

18.5

17

16

15 

14

13.5

"12.5

12

12

11.5

11

10.5

10

10

9.6

8.8

8.4

8.4

8.4

8.1

8.1 

7.2

ft

22

20

14

382.7

12.8

0.842

0.94

759

May

11.5

9.6

8.4

7.8

8.4

8.1

7.8 

7.8

7.4

6.8

62

35

25

20

17.5

16.5

13.5

11.5

10

9.2

8.1

7.4

8.8 

8.4

7.4 

6.8

6.2

5.9

5.6

! !

460.6

14.9

0.980

1.13

914

June

"5.0

5.2

4.6

4.6

4.6

5.4

H7.2

7.2

7.2

8.4

7.8

8.8

6.8

6.2

5.4

5.4

4.4

3.7

3.3

3.0

2.6

2.5 

2.4

2.3 

2.2

2.1

2.0

-

148.3

4.94

0.325

0.36

294

July

2.0

2.0

2.0

2.0

2.0

1.9

1.9 

1.9

1.9

*1.8

1.7

1.6

1.5

51.2

1.65

0.109

0.13

102

Aug.

1.5

1.4

1.4

1.3 1.3

1.2 

1.4

1.5 

1.6

2.2

1.8

1.8

1.6

47.0

1.52

0.100

0.11

93

Sept.

1.5

1.8

1.5

1.3

1.2

1.6 

1.2

1.3

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0 

1.6

"1.6 

1.5

 3.1

2.4

~

42.4

1.41

0.093

0.10

84

Mean 47.5 Cfsm 3.12 In. 42.3") Ae-ft 34,350

Water year 1950-51: Max 717 Mln 1.0 Mean 40.4 Cfsm 2.66 In. 36.09 Ae-ft 29,260

Peak discharge (base. 490 cfs). Dec. 24 (11:30 p.m.) 568 cfs (7.51 ft); Jan. 25 (9 a.m.) 634 cfa 

(8.93 ft); Feb. 10 (5:30 a.m.) 753 cfs (9.92 ft); Mar. 15 (8 p.m.) 645 cfs (8.95 ft).

* Discharge measurement made on this day.

Kote. Doubtful or no gage-height record Jan. 28 to Feb. 3, Mar. 5-12, June 22 to Aug. 22; discharge 

estimated on basis of weather records and records for stations on nearby streams. Shifting-control 

method used Oct. 11 to Nov. 21, Mar. 15 to June 21, Aug. 23 to Sept. 30.
UPPER COLUMBIA RIVER BASIN 176

KOOTENAI RIVER BASIN

Kootenay River at Newgate, British Columbia 

(International gaging station)

Location.--Lat 49°01', long. 11S°10' , on left bank at old highway bridge site, 0.7 mile 

northwest of Newgate and 0.9 mile north of international boundary.

Drainage area. 7,660 sq mi, approximately. 

Records available. October 1930 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2.310.23 ft above mean sea level (datum of 

Geodetic Survey of Canada, adjustment of 1946). Prior to Oct. 1, 1940, staff gage at 

same site at datum 1.00 ft higher. Oct. 1, 1940, to Apr. 30, 1947, staff gage at present site and datum.

Average discharge. 21 years, 9,833 cfs.

Extremes. Maximum discharge during year, 66,600 cfs June 17 (gage height, 12.24 ft); minimum, 2,370 cfs during period Jan. 27 to Feb. 2.

1930-51: Maximum discharge, 98,200 cfs May 28, 1948 (gage height, 16.02 ft); minimum observed, 994 cfs Feb. 7, 1936; minimum gage height observed, 0.21 ft Jan. 11, 1944.

Remarks.--Records excellent except those for periods of no gage-height record, which are 

fair. Records give total flow of main channel and slough.

Cooperation. This station is one of the international gaging stations maintained by 

Canada under agreement with the United States.

Rating table, water year 1950-51 (gage height, In feet, and 

discharge, In cubic feet per second)

2.0 

3.0

3,530

3,370

5,350

4.0 

5.0 

7.0

7,600

11,000

31,000

9.0

11.0

12.2

34,500

53,500

66,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7 

8

9 

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

a4,450 

a4,500

a4,300

a4,150

a4.150

a4,350 

a4,500 

a4,800

a5,700 

*a6,200

6,390 

6,340

6,130

6,170

6,390

6,850

7,060

7,130

7,690

8,710

9,500

8,710

7,900

7,300 

6,920

7,040

7,690

8, '140 

8,200

8,770

10.000

206,110

6,650

0.87

1.00

408,800

Nov.

9.010 

8,050

7,380

6,970

7,230

7,690 

7,500 

7,160

6,630 

6,150

5,970 

5,850

5,540

5,470

5,320

5,340

5,470

5,400

4,920

 4,530

4,900

4,970

4,610

4.060 

4,670

4,950

5,540

5,740 

5,600

5,430

-

178,050

5,940

0.78

0.87

353,200

Dec.

5,050 

4,510

4,370

4,330

3,560

5.420 

3,590 

3,880

4,280 

4,550

5,320 

5,650

5,580

5,180

4,950

4,820

4,780

4,840

4,690

4,570

4,740

5,070

5,740

6,340 

9.570

8,740

7,500

6,770 

6,200

5,850

5,800

164,240

5,300

0.69

0.80

325, 800

Jan.

5,490 

4,970

4,450

4,280

3,910

3,670 

3,580 

3,390

3,550 

3,810

4,000 

4,130

4,130

4,130

4,130

4,080

3,990

3,830

 3, 690

3,610

3,430

3,480

3,480

3,450 

3,510

4,080

3,060

a3, 340 

a3,420

03,080

a2.650

117,780

3,800

0.50

0.58

233,600

Feb.

a2.550 

2,750

3,020

3,400

3,550

3,640 

3,480 

3,420

3,640 

5,030

9.040 

8,870

7,350

6,510

6,100

5,690

5,510

5,270

4,970

4,620

4,650

 4,470

4,260

4,060 

4,020

4,040

3,930

3,840

.

-

131,860

4,710

0.61

0.64

261,500

Mar.

3,790 

3,710

3,560

3,480

2,990

2,920 

2. 810 

27555

2,860 

3,090

3,150 

3,180

3,320

3,370

3,450

3,470

3,430

3,260

3,260

3,290

3,350

3,470

3,500

3,480 

3,530

3,720

3,900

3,830 

3,790

3,830

5.930

105,570

3,410

0.45

0.52

209,400

Apr.

4.160 i/ifo

5,140

5,870

6,800

7,420 

7,900 

8,350

8,560 

8,260

7,870 

7,930

9,080

11,600

12,400

12,300

12,400

12,900

12,900

11,900

10,600

9,780

9,150

8,710 

8,710

 9,400

11, 000

13, 200 

15,400

17.400

291,640

9,720

1.27

1.42

578,500

May

20,000 

20,600

19,600

16.900

26, 666

26,300 

33, 900 

39,000

40, 100 

42,700

47,400 

54,400

57,000

50,200

42,100

39,100

42,000

49,300

51,400

47,000

42,400

41,600

46,900

 57,100 

60 . 200

51,100

42,600

38, 600 

35,900

33,000

30, 100

3U241.1

40,000

5.22

6.02

*2,462

June

27,800 

26,200

25,800

 25,700

25,900

25,700 

24,700 

23,400

22.400 

24,566

29,300 

35,800

38,200

46,900

 54, 300

64,300

65.500

58, 460

49,800

44, 600

40, 400

36,500

34,300

36,200 

38,200

36, 500

36,500

36,900 

34, 500

32,600

*1A01.6

36,700

4.79

5.34

i2,185

July

32,700 

33, 100

34,900

36, 600

43,100

44.600 

44,400 

42,400

39,700 

38,100

36,000 

33,900

33, 800

36,000

37,900

38,500

38,300

37,200

36,100

35, 300

33, 100

30, 200

27,100

25,000 

24, 600

24,600

24,200

23,200 

22,000

20,900

20. 200

* 1,029. 7

33,200

4.33

4.99

*2,042

Aug.

19.000 

 '8,000

17,200

16,600

16,200

15,700 

14,800 

13,700

12,700 

12,000

11,800 

11,400

11,600

11,800

11,400

10,700

10,300

 9,960

9,570

9,150

8,800

8,560

8,440

8,740 

9,320

9,040

8,590

8.290 

8,590

9,400

11,000

332,350

11,700

1.53

1.76

718,700

Sept.

12,500 

13, 100

15.500

13,000

11, 800

11, 100 

10, 700 

10,500

10,300 

10, 100

9,960 

9,680

9,320

8,740

8,290

,840

,600

,350

,210

,060

6,940

6.820

6 870

6J890 

7,160

8,290

8,500

8,050 

7,600

7,810

-

274,580

9,150

1.19

1.33

544,600

Calendar year 1950: Max 70,400 Min 1,770 Mean 11,890 Cfsm 1.55 In. 21.08 Ac-'t 8,609,000

Water year 1950-51: Max 65,300 Mln 2,530 Mean 14,300 Cfsm 1.87 In. 25.27 Ac-'t 10,320,000

* Discharge measurement made on this day.

* Expressed In thousands.

a Ho gage-height record; discharge estimated on basis of records for station at WanJner and Elk 

River near Elko, British Columbia.
176 KOOTENAI RIVER BASIN

Fortine Creek near Trego, Mont.

Location.--Lat 48°38'40", long. 114°54'40", in NE^NE^ sec. 11, T. 33 N. , R. 26 W., on downstream side of private bridge a quarter of a mile upstream from Edna C-eek, 1 mile downstream from Stewart Creek, and 5 miles (revised) southwest of Trego.

Drainage area. 112 sq mi (revised).

Records available. December 1946 to September 1951.

Gage. Wire-weight gage read once daily.

Extremes. Maximum discharge during year, 875 cfs May 7 (gage height, 9.95 ft, from graph 

 based on gage readings); minimum observed, 8.8 cfs Oct. 1; minimum gag? height observed,

1.22 ft Aug. 22.

1946-51: Maximum discharge, 1,810 cfs May 16, 1950 (gage height, 11.8 ft, from

floodmark); minimum daily, 5 cfs Dec. 5, 1946, to Jan. 7, 1947, Jan. 13-15, 1947, Feb.

11-13, 1948, Sept. 7, 1949.

Remarks. Records fair April, May, August, and September, others poor.

Rating table, water year 1950-51, except periods of ice effect (gage

height, In feet, and discharge. In cubic feet per second) 

(Shifting-control method used Oct. 1 to Nov. 9, June 1 to July 26)

1.1 

1.3 

2.0

8.5

16

56

5.0 

9.0 

9.7

270

700

810

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

It?

9.2

9.6

11

11

11

11

13

16

18

14

14

14

18

18

15

*16

20

22

25

24

22

19

20

20

22

24

33

46

41

574.8

18.5

0.165

0.19

1,140

Nov.

37

28

27

25

23

22

19

17

13

12

12

il

14

*18

20

21

21

21

18

22

30

22

14

21

27

32

22

21

20

20

-

630

21.0

0.188

0.21

1,250

Dec.

19

18

17

15

Vi_

15

17

19

20

22

23

26

28

26

24

23

23

23

24

26

*31

43

60

140

120

90

80

70

60

55

45

1,214

39.2

0.350

0.40

2,410

Jan.

38

34

30

26

22

21

20

23

27

32

34

35

35

35

35

35

34

*32

31

30

28

27

30

29

35

30

24

20

14

IS

11

867

28.0

0.250

0.29

1,720

Feb.

12

15

20

24

26

26

26

30

80

140

200

190

180

170

155

140

130

115

105

*98

90

80

70

65

60

55

50

48

_

-

-

2,400

85.7

0.765

0.80

4,760

Calendar year 1950: Max 1,530 Min 8.8

Mar.

45

40

35

32

30

24

20

20

24

28

32

34

35

36

37

37

36

36

35

35

35

35

35

35

36

38

40

40

40

40

50

1,075

3.47

0.310

0.36

2,130

Apr.

10

90

120

187

202

241

276

305

*300

268

258

260

324

440

402

334

334

375

382

319

278

230

202

190

189

250

274

335

406

615

-

8,456

282

2.52

2.81

16,770

May

756

603

458

442

581

690

806

746

682

683

641

750

676

*649

585

511

436

448

410

321

286

287

288

282

250

228

199

186

178

168

167

14,393

464

4.14

4.77

28 , 550

June

146

138

127

125

127

135

*130

132

124

117

116

118

116

108

104

98

106

100

102

106

97

90

85

106

108

92

84

78

76

2*

3,265

109

0.973

1.09

6,480

July

89

78

74

88

109

99

90

81

*70

80

73

66

62

51

55

52

50

46

46

48

43

39

36

34

33

31

29

27

24

23

20

1,746

se.3

O.E03

0.58

3,460

Aug.

20

20

*18

20

18

16

16

16

16

16

18

18

16

20

18

16

14

13

13

13

13

12

12

13

13

15

20

27

51

56

*67

634

20.5

0.183

0.21

1,260

Mean 104 Cfsm 0.929 In. 12.62 Ac-ft 75,

Sept.

64

62

34

28

26

18

18

18

18

18

20

22

23

21

19

20

20

20

19

19

20

22

24

30

34

35

*28

26

24

24

-

774

25.8

0.23O

0.26

1,540

450

Water year 1950-51: Max 806 Min 8.8 Mean 98.7 Cfsm 0.881 In. 11.97 Ac-ft 71,470

Peak discharge base. 200 cfs). Feb. 11 (time and discharge unknown): Aor. 14 (7 D.m.) 468 cfs

(7.04 ft); May 1 6 a.m.) 782 cfs (9.55 ft); May 7 (8 a.m.) 875 cfs (9.95 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Nov. 10 to Apr. 3.
KOOTENAI RIVER BASIN 177

Fisher River near Jennings , Mont .

Location. Lat 48°14'40", long. 115°17'10", in NW^SEi sec. 27, T. 29 N. , R. 29 W. , on 

right bank 80 ft below bridge, 1 mile downstream from Wolf Creek, 9 miles upstream 

from mouth and 9 miles southeast of Jennings.

Drainage area.--780 sq mi.

Records available. December 1950 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,443.23 ft above mean sea level, datum of 

1929 (Corps of Engineers benchmark).

Extremes . Maximum discharge during period, 3,520 cfs May 7 (gage height, 5.90 ft); minimum, 138 cfs Sept. 21 (gage height, 1.60 ft).

Maximum discharge known, 6,560 cfs about May 22, 1948, from slope-area determination 

at site 7-| miles downstream.

Remarks . Records good except those for periods of ice effect, which are poor.

Rating table, Dec. 15, 195O, to Sept. 30, 1951, except periods of Ice effect (ga=se 

height, In feet, and discharge, In cubic feet per second)

1.6 

2.0 

2.5 

3.0

138

254 

445 

70O

3.5

4.0 

5.0 

5.9

1,040

1,470

2,450

3,520

Discharge, in cubic feet per second, December 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

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 SDI

In.

Ac-ft

Oct. Nov. Dec.

.

_

_

_

-

_

_

.

-

-

_

_

.

-

 271

278

295

320

328

358

505

634

980

1,880

1,820

1,460

1,130

923

760

678

628

_

_

_

_

-

Jan.

560

505

5OO

468

432

415

b4OO

b380

b360

b350

b340

b330

320

324

320

 320

324

310

295

306

302

306

295

278

320

454

406

b290

b260

b240

b250

10,960

354

0.454

0.52

21,740

Feb.

b260

b280

b320

b360

b400

441

419

530

730

2,660

5.160

2,660

1,910

1,520

 1,340

1,210

1,090

980

888

818

766

700

645

590

575

540

481

481

-

-

-

26,754

956

1.23

1.28

53,070

Mar.

481

441

445

432

402

378

370

362

386

382

362

390

374

366

378

 406

374

358

358

362

362

366

366

366

386

424

454

468

500

535

570

12,604

407

0.522

0.6O

25,OOO

Apr.

618

718

944

1,290

1,630

1,9OO

2,070

2,200

2,180

2,040

1,910

1,860

2,010

2.550

2,290

2,120

2,050

2,050

2,070

1,900

1,720

1,570

1,450

1,550

 1,510

1,550

1,470

1,640

1,890

2,240

-

52,150

1,758

2.25

2.49

1O3.4OO

May

2,550

2,400

2,220

2,250

2.6OO

3,040

5,460

 5.470

3,220

3,070

3,O8O

5,270

3,050

2,960

2,940

2,740

2,690

2,800

2,570

2,520

2,170

2,110

2,170

2,150

1,940

1,720

1,590

1,520

1,540

1,190

1.060

75,640

2,440

5.13

3.61

150,000

June

958

888

86O

839

902

923

860

832

818

839

 888

930

930

923

1.000

972

839

766

724

678

634

606

596

754

700

64O

612

565

530

505

-

23,511

784

O.O1

1.15

46,630

July

490

472

 463

525

560

520

486

450

441

441

419

594

578

566

554

539

528

510

299

281

271

261

254

248

241

255

252

225

222

215

2_Q7

10,925

552

0.451

0.52

21,670

Aug.

198

192

189

186

184

178

172

170

167

 170

170

175

172

167

161

156

154

148

146

143

143

141

141

141

146

141

146

167

222

271

278

5,355

172

0.221

0.25

10,580

Sept.

228

216

204

189

178

170

164

159

156

154

156

156

154

151

148

148

146

146

145

141

 158

141

146

146

164

192

178

164

161

164

-

4,901

165

0.209

0.23

9,720

Calendar year : Max Mln Mean Cfsm In. Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

 Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice
178 KOOTENAI RIVER BASIN

Kootenai River at Libby, Mont.

Location. Lat 48°24 I 00", long. 115°33'10", in SE&SWi sec. 34, T. 31 N., R. 31 W., on 

right bank 1,800 ft downstream from highway bridge at Libby and 1 mile downstream 

from Libby Creek.

Drainage area. 10.240 sq mi, approximately. 

Records available. October 1910 to September 1951.

Gage.--Water-stage recorder. Prior to Apr. 28, 1931, chain gage at highway bridge at 

different datum. Since 1931 chain gage read about once daily nas beer used as supplementary gage.

Average discharge. 25 years (1912-15, 1917-18, 1928-32, 1934-51), 11.16C cfs.

Extremes. Maximum discharge during year, 69,400 cfs June 17 (gage height, 14.97 ft); 

minimum daily, 2,400 cfs Jan. 30.

1910-51: Maximum discharge, 130,000 cfs June 21, 1916 (gage height, 20.7 ft, present datum); minimum observed, 895 cfs Jan. 11, 1930 (discharge measurement).

Remarks. Records excellent except those for periods of ice effect, which are fair. 

Diversion for irrigation of about 4,200 acres above station.

Revisions (water years). W 1042: 1933.

Rating table, water year 1950-51, except periods of loe effect (gage 

height, In feet, and discharge, in cubic feet per second)

1.7 2.0' 

3.0 

4.0 

5.0 

6.0

3,700

4,440

7,160

10,000

13,200

17,200

7.0

9.0

11.0

13.0

15.0

21,400

30,700

41,600

54,800

69,600

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6 

7

8

9 

10

11

12

13

14

15

16

17 

18 

19

20

21

22

23 

24 

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

5,200 

4,990

4,960 

4.880

4,910

5,040 

5,310

5,260

5,450 

5,990

7,220

7,300

7,020

6,820

6,910

7,160

 7,610 

7,920 

8,640

11,000

11,700

11,000

9,880 

8,980 

8,310

8,280

8,620

9,260

9,850

11,000 

12.100

238,570

7,696

0.752

0.87

173,200

Nov.

11.800 

10,500

9,430 

8,920

8,900

9,260 

9,200

8,840

8,280 

7,660

7,220

6,910

6,660

 6,430

6,350

6,100

6,180 

6,260 

6,010

5,550

5,530

5,690

5,720 

5,180 

5.120

5,930

6,380

6,800

6,880

6,740

216,430

7,214

0.704

0.79

129,300

Dec.

6,570 

5,960

5,530 

5,390

4,440

3.770 

4,040

4,420

4,860 

5,200

5,530

6,320

6,460

6,260

 5,990

5,740

5,720 

5,740 

5,770

5,660

5,900

6,600

8,06,0 

10,800 

12,200

14.000

11,700

10,200

9,120

8,360 

8,000

214,310

6,913

0.675

0.78

425,100

Jan.

7.610 

7,100

6,540 

6,040

5,360

4,340 

4,020

4,190

4,260 

4,600

5,040

5,260

5,280

5,310

 5,280

5,280

5,150 

5,040 

4,960

4,650

4,570

4,160

4,420 

4,290 

4,730

5,450

4,990

b3,000

b2 , 600

b2.400 

b2,500

148,420

4,788

0.468

0.54

294,400

Feb.

b2.700 

b3,000

b3,500 

4,090

4,320

4,470 

4,360

4,320

4,990 

9,420

16,800

17.100

12,900

10,800

 9,610

9,700

8,980 

8,530 

8,030

7,580

7,300

6,910

6,460 

6,100 

6,010

6,100

5,850

5,580

-

:

205,510

7,340

0.717

0.75

407 , 600

Mar.

5,500 

5,280

5,120 

5,010

4,670

b3,500 

b3.300

b3,300

b3,500 

4,190

4,600

4,670

4,860

5,120

4,930

 5,120

4,990 

4,880 

4,700

4,700

4,620

4,730

4,800 

4,800 

4,880

5,120

5,500

5,580

5,580

5,640 

5.800

148,990

4,806

0.469

0.54

J95.500

Apr.

6.150 

6,740

7,720 

9,010

10,500

12,000 

12,700

13,600

13,800 

13,400

12,600

12,300

13,400

16,400

18,400

18,000

17,700 

18,200 

18,400

17,200

15,700

14,300

13,300 

 12,500 

12,200

12,700

14,100

16,500

19,200

22.300

421,020

14,030

1.37

1.53

835,100

May

25,500 

26,800

25,100 

24.100

25,600

31,400 

40,000

47,200

49,400 

53,300

58,600

64,600

65,00'0' 68.100

 55,100

47,200

48,200 

56,400 

60,800

57,000

51,200

47,700

52,100 

61,400 

67,000

61,600

51,400

44,500

40,900

37,600 

34,400

*L,47a2

47,720

4.66

5.37

*2,934

June

31,500 

29,300

28,400 

28,800

30,000

29,400 

27,800

26,500

25.300 

25,700

29,100

 35,700

43,300

48,600

55,400

64,400

68.800 

65,400 

56,300

48,700

44,000

39,500

36,700 

38,000 

40,800

39,300

38,200

39,100

37,100

34,500

* 1,185.6

39,520

3.86

4.31

*2,352

July

34,400 

34,600

 35,900 

39,200

44,500

ftffi

46,300

42,400 

39,600

37,700

35,300

35,000

37,400

39,700

40,500

40,200 

38,600 

37,300

36 , 600

34,200

31,100

27,800 

25,800 

25,300

25,400

25,000

24,100

23,100

22,000 

21^200

*1,OT4.4

34,660

3.38

3.90

*2,131

Aug.

20.000 

19,200

18,400 

17,800

17,400

16,800 

16,100

15,100

 14,000 

13,200

12,900

12,600

12,500

12 , 900

12,600

12,100

11,600 

11,300 

11,000

10,600

10,300

9,970

9.760 

9,S10 

10,500

10,600

10,200

9,850

10,100

11,200 

12,600

403,090

13,000

1.27

1.46

799,500

Sept.

14,100 

14,600

15.000 

14,600

13,400

12,700 

12,200

11,900

11,800 

11,600

11,500

11,300

11,000

10,400

9,880

9,400

9,060 

8,780 

8,560

 8,340

8,250

8,170

8.080 

8,220 

8,450

9,790

10,300

9,910

9,320

9,340

319,950

10,660

1.04

1.16

634,600

Calendar year 1950 : Max 78,900 Mln 1,100 Mean 14,380 Cfsm 1.40 In. 19.09 Ac-ft 10,410,000

Water year 1950-51 : Max 68,800 Mln 2,400 Mean 16,590 Cfsm 1.62 In. 22.00 Ac-ft 12,010,000

Peak discharge (base. 37.000 ofsi.--May 13 (2 to 5 p.m.) 68,600 cfs (14.87 ft); May 25 (2 p.m.) 

67,606 cfs (14V74 ft)j June 17 (3 p.m.) 69,400 cfs (14.97 ft); July 8 (1 a.m.) 47,300 ofs (11.91 ft).

* Discharge measurement made on this day.

* Expressed In thousands.

b Stage-discharge relation affected by loe.
KOOTENAI RIVER BASIN 179 

Lake Creek at Troy, Mont.

Location.--Lat 48°26'40", long. 115°52'30", in SW£ sec. 18, T. 31 N., R. 33 V., on right 

bank a quarter of a mile downstream from powerplant, half a mile upstream from mouth, 

and lj miles southeast of Troy.

Drainage area.--210 sq mi (revised).

Records available.--January 1945 to September 1951.

Gage.--Water-stage recorder.

Average discharge.--6 years, 537 cfs.

Extremes. Maximum discharge during year, 2,770 cfs Feb. 11 (gage height, 7.49 ft); minimum daily, 114 cfs Sept. 23.

1945-51: Maximum discharge, 3,250 cfs May 30, 1948 (gage height, 8.28 ft); minimum, 

2.0 cfs Sept. 1, 1947, Sept. 15, 1948 (gates closed at power dam upstream, leakage 

only).

Remarks. Records good except those for periods of shifting-control, which are poor. 

Large diurnal fluctuation at low flows and some at high flows caused by sirall dam at 

powerplant diversion. Water diverted returns to stream at powerplant above station. 

Natural regulation by Bull and Spar Lakes.

Rating tables, water year 1950-51, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet.per second)

Oct. 1 to Feb. 10

120

255

525

890

1,360

Feb. 11 to May 10 May 11 to Sept. 30

4.9 

5.3 

6.0 

7.0

365

560

1,120

2,080

2.7 

3.5 

4.0 

4.5 

5.0 

6.2

107

240

350

525

780

1,620

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4 

5

6

7

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.

Ac-ft

Oct.

132

180

171

168 

168

204

215

174

208

243

231

255

247

235

190

247

*243

251

330

604

604

507

448

421

399

448

454

513

558

758

735

10,541

340

1.62

1.87

20,910

Nov.

625

564

513

501 

525

519

489

460

438

421

404

394

 388

372

355

366

366

345

330

340

345

360

310

340

355

388

416

426

421

426

12,502

417

1.99

2.22

24,800

Dec.

432

416

399

399 

366

360

360

355

340

550

355

360

355

*355

350

345

355

388

382

399

513

597

850

1,070

1.170

1,080

970

890

810

772

735

16,858

544

2.59

2.99

33,440

Jan.

698

6§8

668

618 

584

544

519

513

489

483

471

460

448

454

*454

443

443

416

394

388

382

388

377

372

555

495

448

416

426

416

426

14,683

474

2.26

2.61

29,120

Feb.

448

454

477

416 

372

350

345

345

558

1,310

g.070

1,790

1,380

*1,220

1,090

1,020

944

880

808

770

740

688

650

622

601

594

544

526

_

.

-

22,012

786

3.74

3.90

43,660

Mar.

526

509

498

482 

498

470

465

460

465

440

425

440

425

395

420

*425

405

385

395

390

380

385

380

385

370

405

400

395

400

400

405

13,223

427

2. OS

2.34

26,230

Apr.

415

445

460

514 

562

629

622

636

650

629

622

622

658

755

762

770

778

816

816

778

732

688

680

*650

636

650

710

800

864

936

20,285

676

3.22

3.59

40,230

May

960

896

856

848 

952

,110

,390

,430

,400

,450

_.58Q

,490

,330

,310

» ,280

,220

,170

,200

,180

,150

,140

,180

,280

,310

,200

,140

,140

,170

,120

,050

984

36,916

1,191

5.67

6.54

73,220

June

957

957

970

932 

964

944

931

912

898

924

1,000

*1,140

1,120

1,150

1.240

1,230

1,130

1,070

1,010

957

924

892

872

984

905

846

828

780

742

720

-

28,929

964

4.59

5.12

57,380

July

708

*655

692

708 

692

660

615

585

548

585

534

516

494

480

440

456

430

402

390

375

370

330

370

322

325

318

308

300

270

312

292

14,482

467

2.22

2.56

28,720

Aug.

270

246

264

266 

238

280

244

244

*244

256

235

187

242

246

224

218

217

218

171

224

217

211

204

196

187

175

209

213

202

218

224

6,992

226

1.08

1.24

13,870

Sept.

224

182

184

227 

222

189

185

170

172

206

185

178

178

173

168

170

162

167

168

*167

*176

170

11*

178

178

208

194

192

173

140

-

5,400

180

0.857

0.96

10,710

Calendar year 1950; Max 2,400 Min 132 Mean 653 Cfsm 3.11 In. 42.23 Ac-ft 472,800

Water year 1950-51: Max 2,070 Mln 114 Mean 556 Cfsm 2.65 In. 35.94 Ac-ft 402,290

* Discharge measurement made on this day.

Note. Shifting-control method used Dec. 21 to Feb. 27, Apr. 27 to May 10, May 19 to June 27.
KOOTENAI RIVER BASIN

Kootenai River at Leonia, Idaho

Location.--Lat 48°37 I , long. 116°03', in NWq-NW^ sec. 20, T. 33 N., R. 34 W., on right 

bank at Leonia, 450 ft east of Montana-Idaho State line and half a mile upstream from 

Boulder Creek.

Drainage area.--11.740 sq mi, approximately. 

Records available.--March 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,700.25 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947. Prior to Nov. 13, 1928, chain gage on 

bridge 250 ft upstream at datum 0.41 ft lower.

Average discharge.--23 years, 13,070 cfs.

Extremes. Maximum discharge during year, 76,300 cfs May 13 (gage height, 117.04 ft); 

minimum daily, 4,500 cfs Jan. 30, 31.

1928-51: Maximum discharge, 123,000 cfs May 28, 1948 (gage height, 123.40 ft); 

minimum, 996 cfs Dec. 9, 1936; minimum gage height, 97.56 ft Dec. 10, 1929.

Floods of June 1894 and 1916 reached stages of 124.6 and 121.6 ft, respectively, 

from information by Great Northern Railway Co.

Remarks. Records excellent except those for periods of ice effect, which are fair. No 

diversion or regulation above station.

Rating table, water year 1950-51, except periods of ice effect (gage

height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Oct. 1-27, Aug. 20-25)

1.2 

2.0 

3.0 

5.0

4,280

6,240

9,220

16,100

7.0

9.0

13.0

17.0

22,300

29,800

49,800

76,000

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

5,500 

5,360

5.280

 5,280

5,300

5,500

5,580

5,630

5,760

6,030

6,940

7,450

7,170

6,940

6,880

6,990

7,370

7,930

8,760

12,600

14,300

13,200

11 , 400

10,000

9,150

9,590

9,750

10, 800

12,000

15,200

16,200

265,600

8,568

0.750

0.84

526,800

Nov.

15.400 

15,400

11,700

10,800

11, 100

11,000

 11,100

10,500

9,660

8,860

8,270

7,930

7,570

7,280

7,140

7,020

6,940

6,990

6,850

6,530

6,540

6,550

6,550

6,370

6.270

7,020

7,600

8,180

8,370

8,180

-

257,450

8,582

0.731

O.82

510,600

Dec.

3,020 

7.54O

6-, 880

6,610

b6, 100

b5,600

bS.SOO

5,730

6,110

6,540

6,640

7,110

7,510

7,450

7,140

6,940

6,940

7,050

7,140

7,170

7,900

8,990

12,100

17,200

19,400

20.500

17,800

15,500

15, 600

12,200

11,400

291,890

9,416

0.802

0.92

579,000

Jan.

10.600 

9,850

9,150

8,540

7,540

6,770

b6,000

b6,OOO

 6,190

6,550

6,610

6,660

6,770

6,770

6,740

6,640

6,550

b6,100

b6,000

b5,900

b5,700

b5,600

b5,500

b5,600

5,900

6,850

6,880

b5,000

b4,600

b4.500

b4,500

202,280

6,525

0.556

0.64

401,200

Feb.

b4. 800 

b5,100

b5,40o

b5,400

b6,200

b6,500

b6, 200

b6,100

b7,000

b 14, 000

b26.000

b25,000

 20,800

17,100

14,800

14,300

13, 100

12 , 500

11,500

10,400

9,800

9,190

8,460

7,990

7,990

7,840

7,510

7,250

_

_

-

297,650

10,630

0.905

0.94

590,300

Mar.

7.140 

6,940

6,770

6,660

6,160

5,550

b4, 800

b4 . 600

b5,000

b5,400

b5,700

6,060

6,110

6,290

6,540

6,570

6,190

6,080

5,980

5,960

5,880

5,980

 5,980

6,010

6,030

6,210

6,550

6,690

6,720

6,740

6,880

189,750

6,121

0.521

0.60

576,400

Apr.

7.220 

7,960

9,360

11,800

14,500

16,500

17,600

18,600

18,900

18,400

17,600

17,200

18,600

22,000

25,800

25, 100

22,700

25,500

25,500

22,300

20,500

18,900

17,700

16,800

16,400

 16,900

18,700

21,500

24,400

28.500

554, 640

18,490

1.57

1.76

tl,100

May

32 , 000 

35,500

51 , 400

50.500

52,700

59,600

50,400

 58 , 900

60,800

65,000

68,400

74,100

75.900

75,200

64,500

57,700

58,100

64,200

*67,700

64, 800

59, 600

56,900

59,900

67,100

72,200

 68,100

58,800

52,500

47,600

45,700

39,600

1 1,726. 8

55,700

4.74

5.47

t3,425

June

 36,000 

55,400

52,500

52,500

55,400

52,900

51,400

29,800

28.600

28,800

52,100

59,700

47,900

55,800

59,200

66,600

70.600

 68, 100

60, 500

55,900

49,100

44, 500

40,800

42,700

45,000

45,600

41,800

 42,400

40, 500

57,500

-

tl,298.8

45,290

3.69

4.11

*2,576

July

56,600 

36,800

37,700

41,400

46,600

49.400

49,400

49,000

45, 600

42,600

40,200

37,200

36,200

58, 6CO

41,200

42,500

42,000

40, SCO

58, SCO

37.9CO

35,6CO

32,100

28,9CO

26,7CO

25, SCO

 25, SCO

25.4CO

24.6CO

23.3CO

22,4CO

21.6CO

*1,122.2

36.2CO

5.C8

3. 55

*2,226

Aug.

20.600 

19,800

19,100

18,500

18,000

17,600

16, 900

16,100

15,200

14,400

13,900

13,600

13,500

15,600

15, 500

15,000

12,500

11,800

11,400

11,000

*10,500

10,100

9,870

9.800

10,500

10,700

10,500

10,100

10,200

11,400

15,200

420,070

15,350

1.15

1.55

855,200

Sept.

14.5OO 

15,100

15.300

15,200

14,200

15,400

12, 800

12,400

12,2OO

11,900

11,700

11,500

11,200

10,600

9,970

9,560

9,060

8,820

8,550

8,270

8,180

8,080

7,990

7,990

8,400

9,530

10, 600

10, 100

9,530

9,420

526,030

10,870

0.926

1.03

646,700

Calendar year 1950: Max 86,400 Min 2,200 Mean 17,170 Cfsm 1.46 In. 19.85 Ac-ft 12,430,000

Water year 1950-51: Max 75,900 Min 4,500 Mean 19,050 Cfsm 1.6Z In. 22.01 Ac-ft 13,790,000

 Discharge measurement made on this day.

* Expressed in thousands.

b Stage-discharge relation affected by ice.
KOOTENAI RIVER BASIN

Boulder Creek near Leonia, Idaho

Location. Lat 48°36' , long. 116°06', in NE£ sec. 32, T. 61 N. , R. 3 E., on right bank 

three-quarters of a mile downstream from McGinty Creek, three-quarters of a mile upstream from buildings of the Idamont Lead-Zinc Mines Co., 2f miles upstream from 

mouth, and 2^ miles southwest of Leonia.

Drainage area.--53 sq mi.

Records available.--April 1928 to September 1951.

-e. Water-stage recorder. Altitude of gage is 2,600 ft (from topographic map). Prior 

to Nov. 20, 1928, staff gage at site 1 mile downstream at different datum. Nov. 20, 

1928, to Nov. 29, 1933, Oct. 13, 1934, to Sept. 27, 1946, water-stage recorder and Dec. 

30, 1933, to Oct. 12, 1934, staff gage1 at site a quarter of a mile upstream at different datum.

Average discharge.--22 years (1929-51), 111 cfs.

Extremes. Maximum discharge during year, 1,050 cfs Feb. 11 (gage height, 5.33 ft); maxi- 

 mum gage height, 6.46 ft or higher sometime during period Jan. 31 to Feb. 10 (ice jam);

minimum, 14 cfs Aug. 18-23, Sept. 19-22.

1928-51: Maximum discharge, 2,700 cfs Oct. 19, 1947 (gage height, 7.85 ft), from

rating curve extended -above 970 cfs on basis of contracted-opening determination of

peak flow; minimum, 2 cfs Aug. 25, Sept. 5, 1931.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor. No diversion or regulation.

\ Rating table, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

2.6 

2.8 

3.O 

3.3

14

25

44

92

3.6 

4.0 

4.5 

5.1

172

309

535

880

 Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

AC-ft

Oct.

16

16

16 »20

44

55

32

31

61

68

68

45

38

35

35

33

52

120

172

336

194

131

1O8

97

134

182

248

230

369

684 

356

4,026

130

2.45

2.82

7,990

Nov.

258

211

194

309

317

237

*207

178

157

148

139

126

123

113

110

104

99

94

b90

92

88

83

iSo" 79

148

194

204

211

182

166

4,781

159

3.OO

3.35

9,480

Dec.

151

142

137

123

blOO

bllO

b!20

110

104

126

131

134

123

120

115

123

151

151

148

185

317

344

568

667

584

412

336

279

248

251 

227

6,837

221

4.17

4.80

13,560

Jan.

211

198

185

172

166

157

148

142

137

131

126

115

115

110

108

101

97

99

92

88

88

83

79

85

137

145

92

b60

b65

b70 

b80

3,682

119

2.25

2.58

7,300

Feb.

90

100

100

10O

90

90

90

120

200

350

75O

500

344

251

214

182

178

151

139

134

126

126

120

120

110

101

99

no

-

5,085

182

3.43

3.57

10,090

Mar.

99

9?

87

85

72

b65

b60

b60

b65

b66

b66

b66

b66

b65

64

72

64

b60

57

58

58

58

55

55

55

60

7O

7O

7O

75 

80

2,095

67.6

1.28

1.47

4,160

Apr.

90

95

110

140

ISO

170

ISO

180

170

170

200

250

321

344

313

309

336

344

298

258

227

214

214

230

272

 313

344

399

408

382

7,431

248

4.68

5.21

14,740

May

356

325

313

369

510

689

772 *742

742

76O

826

760

618

623

557

606

706

650

546

520

 546

618

684

568

495

465

465

4O8

336

305 

279

17,159

554

10.5

12.04

34,03O

June

283

294

290

276

258

224

211

211

244

294

332

356

33T

344

348

268

224 *211

194

178

163

160

166

227

169

154

142

126

115

108

6,902

230

4.34

4.84

13,690

July

104

97

92

108

loT

97

85

78

74

72

66

63

57

54

50

47

44

42

38

35

33

31

31

29

28

 26

24

23

23

22

21

1,695

54.7

1.03

1.19

3,360

Aug.

21

20

20

19

18

18

18

18

18

18

19

20

18

18

17

16

15

15

li

14

*14

14

15

16

16

16

17

27

27

35 

34

585

18.9

0.357

0.41

1,160

Sept.

26

26

21

19

18

17

16

17

16

16

18

16

16

16

16

16

16

16

15

14.

14

15

16

17

44

33

23

21

21

§5

620

20.7

0.391

0.44

1,230

Calendar year 1950 : Max 1,040 Min 12 Mean 184 Cfsm 3.47 In. 47.05 Ac-ft 133,000

Water year 1950-51: Max 826 Min 14 Mean 167 Cfsm 3.15 In. 42.72 Ac-ft 120,800

Peak discharge {base, 490 cfs) .--Oct. 30 (4:30 a.m.) 910 cfs (5.16 ft); Dec. 25 (2:30 a.m.) 736

cfs (4.86 ft); Feb. 11 (time unknown) 1,050 cfs (5.38 ft): May 11 (8:30 p.m.) 964 cfi- (5.20 ft);

May 17 (8:30 p.m.) 820 cfs (4.96 ft); May 22 (7 to 8 p.m.) 784 cfs (4.90 ft).

Discharge measurement made on this day. 

b Stage-discharge relation affected by ice .

Mote. No gage-height record Feb. 1-12, Mar. 25 to Apr. 12; discharge estimated on basis of weather 

ecordsd and records for other Kootenal River tributaries .
182 KOOTENAI RIVER BASIN

Moyie River at Eastport, Idaho 

(International gaging station)

Location. Lat 49°00' , long. 116°11', in SE£ sec. 10, T. 65 N., R. 2 E., or left bank at

 Eastport, 1,000 ft downstream from international boundary.

Drainage area. 570 sq mi.

Records available.--August 1929 to September 1951 in reports of Geological Survey. Jan-

 uary 1915 to December 1916, and discharge measurements during 1914 and 1917, in reports 

of Department of Resources and Development, Canada.

Gage. Water-stage recorder. Datum of gage is 2,620.06 ft above mean sea level, datum of 

"1929, supplementary adjustment of 1947. January 1915 to December 1916, staff gage at 

site 0.2 mile upstream at different datum.

Average discharge. 22 years, 672 cfs.

Extremes. Maximum discharge during year, 6.450 cfs May 12 (gage height, 9.11 ft); mini-

 mum, 96 cfs Oct. 3 (gage height, 3.61 ft).

1929-51: Maximum discharge, 8,030 cfs May 24, 1948 (gage height, 10.25 ft); minimum, 23 cfs Nov. 7, 1936 (gage height, 3.20 ft).

Remarks. Records good except those for periods of ice effect or no gage-height reoord, 

which are fair. No regulation or diversion above station.

Cooperation. This station is one of the international gaging stations maintained by the 

United states under agreement with Canada.

Rating table, water year 1950-51, except periods of loe effect (gape 

height, In feet, and discharge, In cubic feet per second)

3.6 

3.9 

4.2 

4.5 

5.0

94 

184 

319 

4S1 

81O

6.0 

7.O 

8.O 

9.0

1,79O 

3,080 

4,560 

6,250

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11 

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

H99

102

112

"155

131

128

162

155

170 

162 

162

166

173

170

184

248

309

420

431

403

393

376

387

533

588

652

7O7

1.120 1)010

10,006

323

0.567

0.65

19, 85O

Nov.

w686

707

850

S34

795

735

"665

639

613 

557 

522

522

498

487

470

453

409

409

414

398

376

398

425

539

533

527

522

516

17,091

570

1.00

1.12

33,900

Dec.

510 

487

475

a450

a42O

a420

a430

a430

a420

a420

a45O 

a45O 

a440

"425

442

431

459

464

459

47O

6O6

788

1,250

1,760

2.340

1,760

1,470

1,280

1,130

1,070 

1,010

23,416

755

1.32

1.53

46,440

Jan.

907 

84?

818

742

665

6O6

b588

b570

b551

533

522 

510 

493

481

487

475

464

442

431

420

425

"409

393

387

453

557

459

b4OO

b370

b340 

b3S5"

16,100

519

0.911

1.05

31,930

Feb.

b390 

b4T6"

b430

b420

b410

398

a400

a42O

a500

al, 200

3.190 

2,280 

1,76O

1,530

1.37O

1,240

1,110

1,030

932

898

850

"788

735

7OO

679

646

6O6

588

_

-

25,920

926

1.62

1.69

51,410

Mar.

545

522

516

470

464

475

464

459

447

431 

414 

409

398

398

398

382

371

361

361

361

361

355

550

420

447

459

481

510 

545

13,507

436

0.765

O.88

26,790

Apr.

672 

832

"1,150

1,440

1,650

1,620

1,720

1,790

1,660

1,580

1,580 

1,800 

2,460

2,700

2,460

2,410

2,620

2,710

2,360

2,090

1,850

1,690

1,590

1,590

1,740

2,010

2,320

2,55O

2,840

3.050

58, 584

1,953

3.43

3.82

116,200

May

3,250 

2,950

2,760

"2,930

3,680

4,340

4,980

5,25O

5,610

5,840

5,930 

6.180 

5,510

5,280

4,77O

4,610

4,880

"5,010

4,580

4,260

"4,070

4,13O

4,38O

4,380

4,160

3,820

3,530

3,330

2,950

2,660 

2.360

132,370

4,270

7.49

8.64

262,600

June

2,140 

2,020

"1,980

2,030

2,040

1,920

1.84O

1,720

*1,700

1,800

2,020 

2,250 

2,340

2,410

2.620

2,580

2,450

2,280

2,09O

1,950

1.77O

1,640

1,620

2,420

1,920

1,760

*1,640

1,520

1,390

1.510

59,170

1,972

3.46

3.86

117,400

July

1.250 

1,18O

1,110

1,170

1,120

1,150

1,080

1,020

1,000

984

8fO

are

772

771

672

6T2

5F4

563

5F2

487

4f9

4J1

4C«

3P7

361

3J5

319

2f9

2P5

266 

SIS

21,546

gc 5

i.rz i.+i

42,740

Aug.

*238 

230

221

209

192

184

177

173

162

166

170 

170 

159

162

155

142

139

134

131

125

122

"119

TS5

125

125

122

125

162

184

217 

319

5,184

167

0.293

0.34

10,280

Sept.

Iff

230

217

204

196

188

184

177

170

17O 

162 

159

155

152

148

142

134

131

128

128

131

134

139

170

173

155

152

155

204

5,083

169

0.296

0.33

10,080

Calendar year 195O: Max 6,320 Mln 88 Mean 1,049 Cfsm 1.84 In, 24.98 Ao-ft 759,200

Water year 1950-51: Max 6, ISO Mln 99 Mean 1,063 Cfsm 1.86 In. 25.32 Ac-ft 769, 6OO

Peak dlscharite (base. 2.900 cfs).-

2,9OO cfs (6.87 ft); Nay 12 (6 a.m.)

Feb. 11 (about 12 m.) 3,47O cfs (7.28 ft); Apr. 14 (12:3O a.m.) 

6,450 cfs (9.11 ft).

* Discharge measurement made on this day.

records for station at Elleen and nearby streams, 

b Stage-discharge relation affected by Ice.
KOOTENAI RIVER BASIN 183

Moyie River at Eileen, Idaho

Location. Lat 48°46', long. il6°10', in NE£ sec. 35, T. 63 N., R. 2 E., on right bank 

an eighth of a mile downstream from Skin Creek, a quarter of a mile southeast of Eileen, 

and 4 miles upstream from mouth.

Drainage area.--755 sq mi.

Records available. October 1925 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 2,124.5 ft (river-profile surve7). Prior 

to June 1, 1928, staff gage and June 1, 1928, to Sept. 30, 1944, water-stag* recorder 

at same site and 1.0 ft higher datum.

Average discharge.--26 years, 831 cfs.

Extremes. Maximum discharge during year, 7,150 cfs May 12 (gage height, 6.20 ft); minimum, 128 cfs Oct. 3 (gage height, 2.10 ft).

1925-51: Maximum discharge, 9,650 cfs May 26, 1948 (gage height, 6.51 f;); minimum, 40 cfs Nov. 27, 1936; minimum gage height, 0.50 ft, present datum, Feb. 22, 1944.

Remarks. Records good except those for periods of ice effect or no gage-heigh*; record, 

which are fair. No diversion or regulation above station.

Rating table, water year 1950-51, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.1 

2.3 

2.6 

3.0 

3.5

128

198

345

610

1,070

4.0 

4.5 

5.0 

5.5 

6.2

1,680

2,420

3,390

4,700

7,150

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

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.

Ac-ft

Oct.

134 

134

131

155

164

 211

194

175

211

229

229 

229

220

229

233

233

247

313

375

519

561 

505

484

457

484

650

699

843

890

1.500 

1,430

13,051

421

0.558

0.64

25,890

Nov.

1.160 

1,020

970

980

1,150

1,150

1,110

1,020

920

890

860 

800

720

720

700

670

650

620

580

580

580 

550

"565 520

600

750

730

720

710

700

23,690

790

1.05

1.17

46,990

Dec.

690 

680

650

600

580

580

580

 589

580

580

600 

620

600

580

600

590

620

620

620

640

840 

1,100

1,700

2,500

3.000

2,500

2,000

1,750

1,550

1,450 

1,400

31,989

1,032

1.37

1.56

63,450

Jan.

1.250 

1,166

1,150

1,050

920

861

798

807

79S

753

735 

708

690

674

674

674

674

603

596

582

603 

589

554

547

634

825

658

b570

b530

b490 

b520

22,677

732

0.968

1.12

44,980

Feb.

b570 

b600

b610

b600

bSSO

"551 561

568

708

1,600

3.700 

2,750

2,220

1,930

1,760

1,600

1,450

1,350

1,200

1,150

1,100 

1,000 950

910

890

834

780

762

-

:

33,294

1,189

1.57

1.64

66,040

Mar.

117 

699

666

b650

b600

b600

b620

b610

b590

b570

b565 

554

533

526

540

533

505

491

484

484

484 

491

484

'512 477

575

603

618

650

682 

717

17,830

575

0.762

0.88

35,370

Apr.

861 

1,160

1,500

1,860

2,140

2,120

2,220

2,320

2,170

2,060

2,020 

2,200

 2,790

3,130

2,860

2,770

2,960

3,060

2,730

2,470

2,230 

2,080

1,960

1,930

2,040

2,290

2,570

2,810

3,110

3.320

69,741

2,325

3.08

3.44

138,300

May

3,550 

3,320

3,090

3,240

3,870

4,470

5,650

5,960

6,390

6,670

6,830 

7.030

6,516

6,350

5,680

5,440

5,620

 5,900

5,370

5,030

4,760 

4,880

5,090

5,030

4,760

4,350

4,080

3,820

 3,390

3,060 

2.730

151,920

4,901

6.49

7.48

301,300

June

2,540 

2,420

2,360

2,360

2,360

2,260

2,170

2,060

2,020

2,110

2,320 

2,590

2,680

2,700

2.920

 2,880

2,720

2,560

2,370

2,230

2,080 

1,900

1,880

2,730

2,280

2,050

1,920

1,760

1,630

1.550

68,410

2,280

3.02

3.37

135,700

July

1.480 

1,380

1,310

1,380

1,360

1,360

1,280

1,220

1,180

1,170

1,060 

990

920

870

807

762

708

674

618

582

554 

526

491

470

438

418

399

375

363

345 

318

25,808

833

1.10

1.27

51,190

Aug.

307 

296

286

276

257

247

242

238

224

224

233 

233

238

233

220

211

198

190

183

175

 171 

168

TTS

179

179

175

179

220

262

351 

464

7,234

233

0.309

0.36

14.350

Sept.

325 

340

318

291

276

262

257

257

242

233

224 

220

216

211

202

194

190

179

175

171

m175

187

220

252

216

211

211

262

6,902

230

0.305

0.34

13.690

Calendar year 1950: Max 7,600 Mln 117 Mean 1,314 Cfsm 1.74 In. 23.63Ac-f; 951,200

Water Water year year 1950-51: 1950-51: Max Max 7,030 7,030 Mln Mln 131 131 Mean Mean 1,295 1,295 Cfsm Cfsm 1.73 1.73 In. In. 23.29 23.29 Ac-f: Ac-f; 937,200 937,200

Peak discharge (base. 1.840 cfs). Dec. 25 (time unknown) 3,090 cfs (4.86 ft); Feb. 11 (12 m.) 

4,030 efs (5.26 ft); Apr. 14 (3:30 a.m.) 3,300 cfs (4.96 ft); May 12 (7 a.m.) 7,150 cfs (6.20 ft); 

June 15 (5 to 6 a.m.) 3,020 cfs (4.83 ft); June 24 (12 m.) 3,040 efs (4.64 ft).

* Discharge Discharge measurement measurement made on thlp day. 

b Stage-discharge relation affected by Ice.

Note. No gage-height record Nov. 2 to Dec. 7, Dec. 9 to Jan. 1, Feb. 19-22; discharge estimated on 

basis of records for station at Eastport and weather records.

288995 O - 54 - 13
184 KOOTENAI RIVER BASIN

Kootenai River at Boom Camp, near Bonners Perry, Idaho

Location. Lat 48°42'05", long. 116°14'30", in NW£ sec. 29, T. 62 N., R. 2 E., on left 

tank 600 ft east of Boom Camp, 3^ miles upstream from Bonners Perry, aid 4 miles downstream from Moyie River.

Drainage area.--12.950 sq mi, approximately.

Records available. October 1927 to September 1951 in reports of Geological Survey. April 

1925 to September 1927 in reports of Department of Resources and Development, Canada.

Gage. Water-stage recorder. Datum of gage is 1,700.00 ft above mean sea level, levels by 

Topographic Branch in 1928. Datum of 1929, Pacific Northwest supplemeitary adjustment 

of 1947 is 0.04 ft higher. Prior to Aug. 23, 1934, staff gage at same site. Datum of 

gage was 54.08 ft higher prior to Oct. 8, 1934.

Extremes. Maximum elevation during year, 1,776.56 ft May 14; minimum, 1,757.67 ft Jan. 29. 

1527-51: Maximum elevation recorded, 1,779.87 ft May 28, 1948; minimum, 1,755.53 ft 

Dec. 9, 1936.

Remarks. Elevations affected by backwater from Kootenay Lake May 6 to July 24. Dike of 

"rainage district number 14 in United States broke May 11 affecting elevations at high

Mean elevation. In feet, water year October 195O to September 1951

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

Oct.

58.33

58.24

58.18

58.19 

58.23

58.37

58.41

58.43

58.52

58.68

59.10

59.25

59.15

59.06

59.04

59.08

59.23

59.44

59.73

60.62

61.08

60.81

6O.4O

60.08

59.83

6O.OO

60.09

60.37

60.64

61.46

61.72

Nov.

61.47

60.97

60.54

60.34 

60.47

60.46

60.43

60.28

60.07

59.82

59.66

59.51

59.38

59.28

59.21

59.16

59.12

59.14

59.04

58.90

58.80

58.90

58.87 

58.81

58.77

59.16

59.37

59.60

59.63

59.57

-

Dec.

59.51

59.33

59.07

58.96 

59.04

58.81

58.59

58.50

58.70

58.76

58.91

59.13

59.29

59.24

59.12

59.04

59.05

59.13

59.15

59.15

59.50

59.89

60.77 

61.98

62.69

62.85

62.20

61.59

61.11

60.77

60.58

Jan.

60.35

60.15

59.96

59.71 

59.37

59.00

58.93

59.00

58.78

58.94

58.95

58.95

59.00

58.99

58.97

58.93

58.87

58.73

58.73

58.73

58.57

58.46

58.42 

58.45

58.60

59.10

59.06

58.60

58.04

58.21

58.13

Feb.

58.13

58.16

58.37

58.43 

58.75

58.85

58.73

58.67

59.16

61.74

67.38

68.90

66.58

64.82

63.50

62.36

61.16

60.82

60.55

60.34

60.16

59.96

59.72 

59.55

59.53

59.45

59.33

59.20

_

-

-

liar.

59.12

59.02

58.93

58.88 

58.73

58.52

58.14

58.34

58.20

58.38

58.55

58.55

58.58

58.67

58.70

58.71

58.58

58.52

58.47

58.45

58.41

58.45

58.47 

58.47

58.50

58.64

58.81

58.87

58.90

58.93

59.01

Apr.

59.21

59.54

60.01

60.66 

61.29

61.76

62.06

62.32

62.37

62.24

62.02

61.99

62.38

63.17

63.51

63.38

63.33

63.47

63.46

63.19

62.79

62.40

62.11 

61.87

61.80

61.97

62.40

62.99

63.64

64.06

-

Hay

65.01

65.27

65.00

64.82 

'65751

66.45

68.48

70.51

71.76

72.69

73.98

75.44

76.34

76.50

75.30

73.35

72.82

73.62

74.57

74.52

73.54

72.68

72.91 

74.15

75.36

75.39

73.91

72.11

70.58

69.18

67.93

June

66.84

66.12

65.69

65.59 

65.75

65.66

65.29

64.89

64.56

64.58

65.21

66.49

68.11

69.45

70.84

72.52

73.85

74.10

73.09

71.45

69.94

68.38

67.51 

67.71

68.19

68.01

67.51

67.46

67.17

66.50

-

July

66.19

66.17

66.25

66.82 

67.86

68.67

68.85

68.84

68.31

67-. 57

67.03

66.34

65.96

66.23

66.70

66.97

67.01

66.73

66.40

66.19

65.82

65.13

64.40 

63.86

63.62

63.59

63.53

63.36

63.13

62.91

62.72

Aug.

62.52

62731

62.13

61.97

61.85

61.74

61.60

61.40

61.18

60.99

60.86

60.77

60.73

60.81

60.78

60.65

60.49

60.38

60.28

60.20

6O.O6

59.99

59.89 

59.89

60.06

6O.17

60.05

60.01

6O.O6

60.37

60.81

Sept.

61.13

61.29

61.31

61.29

61.03

60.83

60.68

60.56

60.52

60.47

60.41

60.37

60.28

60.15

59.98

59.83

59.67

59.59

59.50

59.42

59.38

59.35

59.35 

59.36

59.49

59.85

60.12

59.99

59.83

59.81

Note. Add 1.7OO ft to obtain elevation above mean sea level
KOOTEHAI RIVER BASIN 185

Kootenai River at Bonners Ferry, Idaho

Location. Lat 48°42'00", long. 116°18'45", in NE£ sec. 27, T. 62 N., R. 1 E., near right 

bank on upstream side of highway bridge at Bonners Perry.

Drainage area. 13,000 sq mi, approximately.

Records available. May to October 1904, October 1927 to September 1951 (gage heights 

only prior to April 1928). Gage-height records collected in this vicinity since 1904 

are contained in reports of United States Weather Bureau.

Gage. Wire-weight gage. Water-stage recorder 800 ft across channel from wire-weight 

gage at same datum used as supplemental gage during high stages. Datum of gage is 

1,743.00 ft above mean sea level with respect to Geological Survey benchmark V-3-1929, 

at elevation 1,777.08 ft. Datum of 1929, supplementary adjustment of 1947, is 0.02 ft 

higher. Gage readings have been reduced to elevations above mean sea level. May 1 to 

Oct. 15, 1904, staff gage on railroad bridge three-quarters of a mile downstream at 

different datum. Oct. 1, 1927, to Nov. 30, 1929, staff gage near left bank. Dec. 1, 

1929, to June 12, 1933, chain or wire-weight gages on old highway bridge 40 ft downstream. Datum of gages Oct. 1, 1927, to Jan. 2, 1931, was about 0.23 ft lower.

Average discharge. 23 years (1928-51), 14,140 cfs.

Extremes. Maximum daily discharge during year, 83,800 cfs May 13; maximum elevation, 

1,774.86 ft May 14; minimum daily discharge, 4,380 cfs Jan. 29; minimum elevation, 

1 743 99 ft Mar 23

1927-51: Maximum discharge, 139,000 cfs May 27, 1948 (affected by dike breakage 

downstream); maximum elevation, 1,778.32 ft May 28, 1948; minimum daily discharge, 

1,300 cfs Feb. 8, 1936; minimum elevation, 1,741.14 ft, datum then in use.Dec. 5, 

1929, Dec. 29, 1930.

Floodtof June 1894 reached a stage of 1,777.2 ft at present datum.

Remarks. Records excellent except those for periods of ice effect, which are good.

Backwater from Kootenay Lake usually present at Bonners Perry. Discharge for periods 

of backwater at Boom Camp from Kootenay Lake, May 6 to July 24, computed on basis of 

fall between gages at Boom Camp and near Bonners Perry; that for remainder of year on 

basis of stage-discharge relation for station at Boom Camp. Discharge measurements 

made at station near Bonners Ferry. Dike of drainage district number 14 in Kootenai 

Valley'in United States broke May 11, affecting discharge and elevations at high 

stages. No diversion or regulation above station.

Daily mean elevation, in feet, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9 

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

48.74

48.69

48.62

48.66

48.68

e48.75

648.77

e48.85

48.93 

48.99

.49.15

49.36 

49.36

49.33

49.30

49.29

49.35

49.61

49.85

50.90

51.68

51.68

50.83

50.33

50.05

50.24

50.39

50.72

51.07

52.31

52.92

Nov.

52.52

51.73

51.03

50.67

50.84

50.81

50.86

50.62

50.32 

50.06

49.90

49.76 

49.63

49.53

49.42

49.41

49.38

49.38

49.30

49.22

49.16

49.38

49.35

49.36

49.39

49.49

49.65

49.89

49.96

49.93

-

Dec.

49.89

49.69

49.45

49.47

49.55

49.64

49.92

49.90

49.75 

49.60

49.46

49.45 

49.60

49.58

49.45

49.36

49.38

49.36

49.46

49.49

49.81

50.34

51.30

53.27

54.79

55.25

54.31

53.07

52.11

51.47

51.23

Jan.

50.89

50.61

50.37

50.04

49.57

49.29

49.16

49.58

49.44 

49.27

49.11

49.16 

49.0S

48.91

48.81

48.66

48.64

48.63

48.61

48.55

48.62

48.62

48.44

48.39

48.40

48.60

48.62

48.61

48.59

48.64

48.81

Feb.

48.99

49.16

49.77

49.82

49.93

49.78

49.77

49.76

49.99 

53.85

61.81

62.55 

59.65

57.43

56.20

55.69

54.17

52.42

50.83

49.76

49.13

48.63

48.04

47.51

47.25

46.97

46.64

46.51

_

_

-

Mar.

46.15

46.06

45.75

45.66

46.46

47.23

47.31

47.63

fcft

46.68

46.76 

46.35

46. OO

45.77

45.52

45.08

44.73

44.49

44.20

44.08

44.02

44.01

44.02

44.03

44.20

44.44

44.56

44.54

44.55

44.70

Apr.

44.98

45.48

46.23

47.21

48.44

49.53

50.43

51.03

51.40 

51.26

50.88

50.67 

51.31

52.90

54.02

54.10

54.04

54.31

54.54

54.10

53.26

52.53

51.72

51.18

50.88

51.05

51.74

52.94

54.41

56.07

May

57.65

58.56

53.39

57.95

58.57

60.65

63.95

67.04

68.74 

70.15

71.62

73.34 

74.48

73.56

71.68

70.81

71.65

72.63

72.72

71.79

70.76

70.86

72.17

73.30

75.77

72.32

70.37

68.60

67.05

65.55

June

64.13

62.95

62.21

61.87

61.90

61.66

60.98

60.18

59.52 

59.50

60.06

61.95 

64.19

66.14

67.90

69.94

71.58

72.05

71.15

69.57

67.67

66.19

64.76

64.79

65.31

65.20

64.61

64.44

64.13

63.30

-

July

62.75

62.63

62.65

63.28

64.58

65.67

66.05

66.08

65.54 

64.67

63.95

63.08 

62.40

62.51

63.10

63.50

63.60

63.31

62.84

62.49

61.98

60.93

59.66

58.53

57.72

57.42

57.16

56.74

56.19

55.62

55.09

Aug.

54.60

54.04

53.53

53.04

52.65

52.58

52.00

51.52

50.94 

50.45

50.10

49.88 

49.82

49.85

49.91

49.88

49.81

49.78

49.79

49.81

49..J6

49.77

49.82

49.84

50.05

50.31

50.17

50.33

50.43

50.74

51.13

Sept.

51.61

51.92

51.93

51.90

51.56

51.24

51.03

50.93

50.83 

50.78

50.69

50.62 

50.54

50.38

50.15

50.00

49.87

49.79

49.70

49.64

49.54

49.50

49.48

49.49

49.60

49.98

50.27

50.21

50.03

50.03

-

Note. Add 1,700 ft to obtain elevation above mean sea level.
186 KOOTENAI RIVER BASIN

Discharge, In cubic feet per second, of Kootenai River at Bonners Perry, Idrho, water year 

October 1950 to September 1951

Day

1 

2

3

4

5

6

7 

8

9

10

11

1Z

13

14

15

16

17

IS

19

20

21

22

23 

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

5,530 

5,320

5.180

5,200

5,290

5,630

*5,730

5,780

6,000

6,450

7,610

8,080

7,790

7,530

7,500

7,610

8,080

8,710

9,640

12,800

14,600

13,600

12,000 

10,900

10,100

10,600

11,000

12,000

13,000

16,300

17.400

282,960

9,128

0.702

0.81

561,200

Nov.

16.40C 

14.3&

*12,70C

11,900

12,400

12,400

12,300 

11,700

11,000

10,200

9,640

9,150

8,740

8,440

8,230

8,110

7,990

8,050

7,760

7,360

7,080

7,360

7,300 

7,130

7.020

8,140

8,780

9,510

9,600

9,440

-

290,130

9,671

0.744

0.83

575,500

Dec.

9,250 

8,680

7,900

7,580

b6,900

b6,400

b6, 500 

6,34<!

6,880

7,050

7,470

8,110

*8,590

8,440

8,080

7,850

7,880

8,110

8,170

8,170

9,250

10,500

13,800 

18,800

22,200

23.000

19, 660

17,100

15,100

13,800

13,000

330,500

10,660

0.820

0.95

655,500

Jan.

12.20C 

11, 46<!

10.80C

9,930

8,840

7,730

b7,300 

b7,100

7,10C

7,560

7,580

7,580

7,730

7,700

7,640

7,530

*7,360

6,960

b6,700

b6 , 600

b6,400

6,240

6,130 

6,210

6,610

8,020

7,900

6,610

5,200

bS.lOO

b5,200

232,960

7,515

0.578

0.67

462,100

Feb.

5.410 

5,480

6,000

6,160

b6,950

b7,050

6,960 

6,800

b8,000

b!6,500

b32.000

b30,000

b25,000

b20,500

b!8,800

b!7,500

blS.OOO

14,100

13,100

12,300

11,700

10,900

10,100 

9,570

9,510

9,250

8,870

8,470

.

-

351,980

12,570

0.967

1.01

698,100

Mar.

*8.230 

77930'

7,670

7,530

7,100

b6, 300

5,580 

b5.350

5,730

b6,100

be, 400

6,660

6,740

6,990

7,080

7,130

6,770

6,610

6,480

6,420

6,340

6,450

6,500 

6,500

6,580

6,990

7,470

7,640

*7,730

7,820

8,050

212,870

6,867

0.528

0.61

422,200

Apr.

8.650 

9] 700

11,300

13,800

16,300

18,300

19,700 

20,900

21,200

20,600

19,600

19,500

21,300

25,300

27,100

26,500

26,200

27,000

26,900

25,500

23,400

21,500

20,100 

*19,000

18,700

19,500

21,500

24,400

28,000

30.400

-

631,850

21,060

1.62

1.81

*1,253

May

36,200 

37,800

36,100

35.000

38,000

46,200

*55,100 

64,300

68,400

71,500

76,500

81 , 400

83.800

81,100

75,800

64,500

66,000

*70,700

74,600

72,500

66,900

63,600

66,300 

72,700

76,700

73,900

66,200

58,700

*53 , 800

48,000

43,200

*1,925.5

62,110

4.78

5.51

*3,819

June

39,200 

37,000

35,600

35,60O

36,800

36,700

35,100 

33,600

32 . 40C

32,900

36 , 300

42,500

50,300

56,500

* 62, 800

70,900

75.100

74,100

66,100

*59,500

52,700

44,500

42,500 

44,400

46,900

45,600

43,200

43,600

42,100

38,900

-

H.,393.4

46,450

3.57

3.99

*2,764

July

38 , 100 

*3e,400

39,000

4Z.OOO

47,000

50,300

50.400 

50,000

46 , 800

43,300

41,400

38,400

37,200

39,000

41,200

42,400

42,400

40,900

39,300

38,700

37,000

33,800

30,700 

*28,600

27,600

27 , 400

27,000

26,000

24,800

23,600

22.600

a, 155. 3

37,270

2.87

3.31

*2,292

Aug.

19 , 700

18,900

18,300

17,800

17,200 

16,300

15,400

14,600

14,000

13,700

13,500

13,800

13,600

13,100

12,500

12,100

11,700

11,300

10,800

10,500

* 10. 200 

10,200

10,800

11,200

10,700

10,600

10,800

11,900

13,500

430,800

13,900

1.07

1.23

854,500

Sept.

14,800 

15,400

15.500

15,400

14,400

13,600

13,000 

12,600

12,400

12,200

12,000

11,900

11,600

11,100

10,500

10,000

9,470

9,220

8,930

8,680

8,560

8,470

8.410 

8,500

8,900

10,100

11,000

10,500

10,000

9,930

-

337,070

11,240

0.865

0.96

668,600

Calendar year 1950: Max 90,100 Mln 2,400 Mean 18,920 Cfsm 1.46 In. 19.77 Ac-ft 13,700,000

Water year 1950-51: Max 83,800 Mln 5,100 Mean 20,750 Cfsm 1.60 In. 21.61 Ac-ft 15,030,000

* Discharge measurement made on this day.

t Expressed In thousands.

b Stage-discharge relation affected by Ice.
KOOTENAI RIVER BASIN 187

Kootenai River near Bonners Ferry, Idaho

Location. Lat 48 0 41 I 55", long. 116°.20'40", In NVi£ sec. 28, T. 62 N., R. 1 E., on left 

tank 1.6 miles downstream from highway bridge at Bonners Perry.

Drainage area. 13.OOP sq ml, approximately. 

Records available. May 1928 to September 1951.

Gage. water-stage recorder. Datum of gage Is 1,700.00 ft above mean sea level, levels 

by Topographic Branch In 1928. Datum of 1929, supplementary adjustment of 1947, is 

0.02 ft higher at Bonners Perry. May 17 to July 20, 1928, water-stage recorder at 

same site at datum 43.42 ft higher. July 21 to Oct. 22, 1928, and for elevations below 

1,742 ft prior to Jan. 2, 1931, staff gage at same site and datum.

Extremes.--Maximum elevation during year, 1,774.22 ft May 14; minimum, 1,742.9"' ft Mar.

1928-51: Maximum elevation, 1,776.84 ft May 28, 1948; minimum, 1,740.16 ft Mar. 

29, 1944.

Remarks.--Elevations affected by backwater from Kootenay Lake. Dike of drainage district 

BumFer 14 in United States broke May 11, affecting elevations at high stages.

Daily mean elevation, in feet, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8 

9

10

ri

12 

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Oct.

48.71 

48.66

48.59

48.60

48.64

48.69 

48.73

48.74 

48.78

48.81

49.00

49.22 

49.25

49.25 

49.19

49.19

49.22

49.39

49.65

50.49

51.35

51.16

50.68 

50.25

49.91

50.02 

50.15

50.50

50.84

51.98

52.72

Nov.

52.42 

5TT5T

50.85

50.44

50.60

50.59 

50.65

50.46 

50.19

49.92

49.75

49.66 

49.50

49.39 

49.32

49.26

49.22

49.26

49.20

49.08

49.00

49.26

49.20 

49.11

49.09

49.56 

49.49

49.71

49.81

49.80

-

Dec.

49.70 

49.54

49.28

49.26

48.95

48.85 

48.97

49.01 

49.12

49.21

49.52

49.55 

49.52

49.49 

49.55

49.25

49.27

49.55

49.57

49.56

49.62

49.98

50.97 

52.73

54.35

54.93 

54.09

52.91

51.97

51.25

51.02

Jan.

56T40

50.18

49.92

49.55

49.19 

48.98

49.07 

49.05

49.67

49.05

48.96 

48.80

48.70 

48.61

48.52

48.48

48.44

48.41

48.27

48.19

48.12

47.96 

47.96

48.00

48.44 

48.35

47.45

46.95

46.90

46.81

Feb.

46.76 

46.95

47.12

47.22

47.40

47.46 

47.58

47.20 

47.54

49.95

57.05

59.60 

57.26

54.88 

55.51

52.62

51.95

51.16

50.23

49.42

48.85

48.54

47.80 

47.54

47.02

46.69 

46.36

46.04

.

_

-

Mar.

45T61

45.26

45.17

45.26

44.93 

44.54

44.40 

44.48

44.52

44.48

44.60 

44.65

44.68 

44.63

44.54

44.14

45.74

45.46

43.50

45.14

45.05

45.05 

43.02

45.00

43.07 

43.55

45.48

45.44

45.40

43.54

Apr.

43.76

44! 97

46.29

47.69

48.79 

49.64

50.29 

50.74

50.60

50.23

50.02 

50.65

52.25 

53.36

53.48

53.43

53.74

55.96

55.53

52.77

51.90

51.20 

50.64

50.32

50.49 

51.20

52.36

55.76

55.59

-

Hay

56.92 

57 .85

57.72

57.55

57.99

59.92 

65.19

66.40 

68.37

69.58

71.06

72.78 

75.85

74.14 

73.01

71.16

70.30

71.06

72.07

72.18

71.24

70.30

70.39 

71.64

72.99

73.21 

71.80

69.92

68.14

66.60

65.10

June

65.70 

62.57

61.85

61.50

61.50

61.27 

60.62

59.85 

59.16

58.92

59.62

61.48 

65.72

65.62 

67.44

69.56

71.00

71.48

70.67

68.89

67.24

65.70

64.58 

64.38

64.86

64.77 

64.21

64.01

63.70

62.92

-

July

62.36 

62.22

62.22

62.80

64.08

65.20 

65.58

65.64 

65.15

64.31

63.51

62.66 

61.98

62.09 

62.66

63.04

63.16

62.85

62.40

62.05

61.57

60.56

59.32 

58.23

57.43

57.11 

56.85

56.42

55.90

55.33

54.80

Alg.

54.29 

53.66

53.15

52.65

52.25

51.97 

£1.60

51.11 

£0.56

£0.05

49.69

49.48 

49.35

49.43 

49.54

49.52

49.45

49.45

49.52

49.55

49.60

49.59

49.66 

49.68

49.84

50.05 

49.98

50.02

50.01

50.29

50.80

Sept.

51.27 

51.58

51.62

51 .60

51.26

50.94 

50.73

50.59 

50.56

50.53

50.50

50.41 

50.51

50.14 

49.94

49.81

49.66

49.58

49.55

49.50

49.40

49.36

49.51 

49.55

49.42

49.80 

50.09

50.02

49.84

49.86

-

Note. Add 1,700 ft to obtain elevation above mean sea level.
188 KOOTENAI RIVER BASIN

Deep Creek at Moravia, Idaho

Location. Lat 48°38', long. 116°24', in sec. 18, T. 61 N., R. 1 E., on downstream side 

of right abutment of highway bridge, 1 mile downstream from Ruby Creek and 1 mile 

southwest of Moravia.

Drainage area.--133 sq mi.

Records available. May 1928 to September 1951 (no winter records prior to 1933).

Gage.--Staff gage read once daily. Altitude of gage is 1,800 ft (from topographic map). 

Prior to Aug. 2, 1949, at datum 2.00 ft higher.

Average discharge.--19 years (1932-51), 142 cfs.

Extremes --Maximum daily discharge daring year, 1,200 cfs Feb. 11; maximum gage height 

observed, 6.80 ft Feb. 11 (ice Jam); minimum observed, 14 cfs Aug. 21; minimum gage 

height observed, 3.42 ft Oct. 1, 2.

1928-51: Maximum discharge observed, 1,500 cfs May 15, 1950 (gage height, 6.42 ft); 

maximum gage height observed, that of Feb. 11, 1951; minimum discharge observed, 5 cfs 

Aug. 14, 22, 1940.

Remarks. Records fair except those for periods of ice effect, doubtful o" no gage-height 

record, or shifting control, which are poor. Small diversions above station for irrigation. Occasional regulation above station at migratory waterfowl refuge near 

Elmira.

Rating tables, water year 1950-51, except periods of Ice effect or shifting 

control (gage height, in feet, and discharge, In cubic feet per second)

3.4 

3.6

Oct. 1 to Nov. 14

4.3 

4.6 

5.0

140 

21S 

356

3.7 

3.9 

4.2 

4.5

Nov. 15 to Sept. 30

4.8 

5.1 

5.5 

6.2

163

262

437

855

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

24

24

26

34

a45

a50

*44

a40

55

55

46

46

44

42

39

a3S

53

65

74

100

127

88

74

a70

ago

111

164

169

218

356

248

2,659

85.8

0.645

0.74

5,270

Nov.

*210

201

185

185

145

132

115

111

111

104

104

100

97

92

100

119

111

107

93

80

log

119

104

137

169

169

200

219 213"

193

-

4,134

138

1.04

1.16

8,200

Dec.

187

181

147

133

blgQ

b!35

blSO

blSO

147

147

153

*166

158

147

147

187

213

230

318

374

427

453

726

90O

746

678

550

506

464

448

458

g,g46

321

2.41

2.78

ig,730

Jan.

412

384

374

343

309

240

200

b210

b250

244

237

230

219

230

219

226

219 ige

187

178

166

163

153

150

230

437

248

b!40

bTso'

b!60

b!70

7,254

234

1.76

2.03

14,390

Feb.

blSO

b!90

b!90

b!90

blSO

178

172

301

469

bl.OOO

 bl.200

b800

*529

437

408

361

326

301

278

270

255

145

b!40

blSO

244

203

150

160

_

-

g,436

337

2.53

2.64

18,720

Mar.

184

210

200

147

128

b!25

b!30

b!35

blSO

blSO

blSO

b!45

b!40

135

150

178

178

140

135

130

137

137

133

133

142

181

213

213

*200

213

216

4,958

160

1.20

1.39

9,830

Apr.

219

285

356

47 g

501

518

545

sag

sg4

600

612

606

648

ege

666

624

660

572

556

556

506

37g

37g

374

388

422

479

506

523

534

-

15,372

512

3.85

4.30

30,490

May

540

485

512

464

642

654

785

752

630

746

766

806

612

606

*589

578

589

612

sag

4go

490

512

572

47 g

sge

343

343

*314

262

240

255

16,633

537

4.04

4.65

32,9go

June

2ig

226

226

226

193

181

169

165

163

163

193

226

219

175

 216

193

163

155

157

128

124

119

158

200

158

128

124

111

93

Zi

5,021

167

1.26

1.40

g.geo

Julgs

gs

ge

100

111

107

ge

90

93

96

77

69

61

56

54

52

47

43

41

39

39

38

*36

55

33

31

2g

a28

a27

a26

a2_5

l,85g

60.0

0.451

0.52

3, ego

Aug.

a24

23

21

21

20

20

20

18

18

20

20

20

20

20

16

15

15

15

15

15

*14

15

16

16

16

20

24

2g

38

57

39

640

20.6

0.155

0.18

1,270

Sept.

41

33

31

29

29

26

24

24

24

24

23

21

21

21

21

21

20

20

18

18

18

ig

20

22

44

40

34

29

30

76.

-

821

27.4

0.206

0.25

1,650

Calendar year 195O: Max 1,490 Mln 16 Mean 227 Cfsm 1.71 In. 23.21 Ac-ft 164,600

Water year 1950-51: Max 1,200 Mln 14 Mean 216 Cfsm 1.62 In. 22.02 Ac-ft 156,200

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on basis of weather records and records 

for nearby streams.

b Stage-discharge relation affected by ice.

Note.--Shifting-control method used Nov. 15 to Apr. 5O.
KOOTENAI RIVER BASIN 189

Kootenai River at Klockmann Ranch, near Bonners Ferry, Idaho

Location.--Lat 48°47'40", long. 116°22'50", in SE£ sec. 19, T. 63 N., R. 1 E., on right 

banK 0.3 mile downstream from drainage district number 5 dike and 8 miles north of 

Bonners Ferry.

Drainage area. 13.300 sq mi, approximately. 

Records available. May 1928 to September 1951.

Qage. Water-stage recorder. Datum of gage is 1,700.00 ft above mean sea level, levels 

by Topographic Branch in 1928. Datum of 1929, supplementary adjustment of 1947, is 

about 0.03 ft higer.

Extremes.--Maximum elevation during year, 1,771.35 ft May 14; minimum, 1,742.0? ft Mar.

1928-51: Maximum elevation, 1,773.82 ft May 28, 1948; minimum, 1,738.76 ft Apr. 1, 

1944.

Remarks. Elevations affected by backwater from Kootenay Lake. Dike of drainage district 

number 14 in Kootenai Valley in United States broke May 11 affecting elevations at 

high stages.

Dally mean elevation, In feet, water year October 1950 to September 1951

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

Oct.

48.43 

48.40

48.34

48.36

48.39

48.46 

48.49

48.48

48.52

48.52

48.68

48.84 

48.86

48.84

48.83

48.79

48.84

49.01

49.22

49.84

50.52 

50.34

49.94

49.56

49.32

49.49

49.56

49.82

50.04

50.94

51.58

Nov.

51.28 

50.65

50.05

49.75

49.85

49.84 

49.89

49.75

49.53

49.31

49.20

49.14 

49.02

48.95

48.90

48.84

48.82

48.83

48.78

48.71

48.66 

48.94

48.82

48.74

48.73

48.92

49.04

49.23

49.30

49.29

-

Dec.

49.22 

49.09

48.90

48.87

48.58

48.51 

48.58

48.64

48.71

48.78

48.88

48.95 

49.08

49.04

48.92

48.84

48.85

48.92

48.93

48.94

49.14 

49.44

50.22

51.64

52.99

53.50

52.86

51.80

50.98

50.42

50.24

Jan.

49.99 

49.76

_

_

-

-

_

_

-

-

_

-

_

_

.

-

-

_

.

-

_

,.

.

46.68

46.67

46.66

Feb.

46.66 

46.61

46.70

46.77

46.84

46.87 

46.80

46.64

46.86

48.62

54.52

57.34 

55.34

53.04

51.55

50.88

50.36

49.69

49.08

48.52

48.00 

47.48

46.96

46.46

46.12

45.79

45.47

45.17

_

-

Mar.

44.91 

47778

44.46

44.31

44.07

43.85 

43.52

43.42

43.44

43.46

43.44

43.52 

43.54

43.55

43.48

43.41

43.16

42.85

42.59

42.44

42.27 

42.16

42.13

42.09

42.05

42.10

42.32

42.38

42.34

42.31

42.41

Apr.

42.59

43.00

43.71

44.69

45.92

46.99 

47.82

48.48

48.90

48.82

48.50

48.31 

48.82

50.26

51.43

51.62

51.59

51.85

52.09

51.71

51.05 

50.27

49.63

49.12

48.80

48.89

49.51

50.56

51.88

53.42

May

54.92 

55.93

55.86

55.47

56.03

57.85 

60.88

63.84

65.79

66.97

68.31

69.84 

70.93

71.30

70.53

69.04

68.17

68.71

69.62

69.84

69.12 

68.30

68.30

69.27

70.44

70.77

69.68

68.10

66.56

65.05

63.64

June

62.36 

61.31

60.56

60.16

60.06

59.84 

59.22

58.45

57.82

57.54

58.14

59.74 

61.78

63.60

65.23

66.94

68.37

69.06

68748"

67.08

65.52 

64.12

62.89

62.80

63.17

63.09

62.61

62.36

62.11

61.39

July

60.86 

60.70

60.69

61.21

62.30

63.32 

63.74

63.80

63.41

62.63

61.93

61.13 

60.49

60.49

61.00

61.38

61.46

61.24

60.79

60.43

59.97 

59.06

57.89

56.87

56.12

55.74

55.46

55.06

54.56

53.99

53.48

A.g.

5^.02 

5T749"

52.03

51.54

51.15

50.81 

50.44

49.99

49.47

48.98

48.64

48.45 

48.33

48.41

48.53

48.56

48.59

48.65

48.77

48.81

48.82 

48.89

49.02

49.10

49.22

49.40

49.32

49.36

49.35

49.44

Sept.

Note. Add 1,700 ft to obtain elevation above mean sea level.
190 KOOTENAI RIVER BASIN

Kootenai River near Copeland, Idaho 

(International gaging station)

Location. Lat 48°54'45", long. 116°25'00", in NW#JW£SWj- sec. 12, T. 64 N., R. 1 W., on 

right bank at Andrews Ranch, three-quarters of a mile downstream from Mission Creek 

and If miles northwest of Copeland.

Drainage area. 13.400 sq mi, approximately.

Records available.--October 1927 to September 1951 (gage-height record only prior to May 

1989) in reports of Geological Survey. April 1925 to September 1927 (gage heights 

only) in reports of Department of Resources and Development, Canada.

Gage. Water-stage recorder. Datum of gage is 1,700.00 ft above mean sea level referred 

Co benchmark T-10-1914, elevation, 1,791.49 ft (datum of 1929, supplementary adjustment 

of 1947, is about 0.04 ft higher). Prior to Nov. 20, 1929, staff or recording gage at 

site three-quarters of a mile upstream at same datum.

Average discharge. 22 years,'14,730 cfs.

Extremes.--Maximum daily discharge during year, 86,900 cfs May 14; maximum elevation, 

1,767.17 ft May 26; minimum daily discharge, 5,400 cfs Jan. 30; minimum elevation, 

1,741.15 ft Mar. 26.

1929-51: Maximum daily discharge, 124,000 cfs May 30, 1948; maximum elevation, 

1,770.10 ft May 31, 1948; minimum daily discharge, 1,350 cfs Feb. 8, 1936; minimum 

elevation, 1,738.52 ft Apr. 2, 3, 1944.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are good. Dikes of drainage District No. 14 in Kootenai Valley in United 

States broke May 11, affecting elevations and discharge at high stages. Discharge computed from fall-mean stage-discharge relations determined on basis of fall in reach between stations at Klockmann Ranch and at Porthill and discharge measurements made at 

station near Copeland. Stage-discharge relation affected by backwater from Kootenav 

Lake.

Cooperation.--This is one of the international gaging stations maintained by the United 

States under agreement with Canada.

Daily mean elevation, In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

48.24

46.21

48.19

48.21

48.22

48.30

48.30

48.31

48.34

48.31

48.39

48.51

48.54

48.55

48.53

48.51

48.52

48.63

48.75

49.13

49.56

49.43

49.19

48.95

48.77

48.90

48.94

49.10

49.25

49.86

50.30

Nov.

50.09

49.62

49.18

48.97

49.08

49.07

49.10

49.02

48.87

48.73

48.67

48.66

48.60

48.56

48.53

48.51

48.45

48.47

48.43

48.41

48.41

48.59

48.50

48.44

48.44

48.55

48.62

48.73

48.80

48.79

-

Dec.

48.73

48.65

48.54

48.52

48.29

48.22

48. 27

48.32

48.36

48.43

48.49

48.53

48.63

48.63

48.56

48.50

48.52

48.56

48.56

48.56

48.67

48.85

49.36

50.29

51.31

51.70

51.28

50.52

49.88

49.48

49.38

Jan.

49.18

49.03

48.93

48.77

48.57

48.39

48.19

46.18

48.19

48.19

46.14

46.06

47.95

47.92

47.87

47.82

47.77

47.68

47.54

47.41

47.32

47.27

47.18

47.14

47.13

47.36

47.29

46.76

46.49

46.42

46.33

Feb.

46.28

46.35

46.39

46.40

46.40

46.36

46.31

46.16

46.25

47.39

51.51

54.11

52.74

50.88

49.72

49.13

48.70

46.19

47.72

47.28

46.93

46.53

46.12

45~.66

45.33

45.01

44.69

44.41

_

_

-

Mar.

44.19

44.02

43.74

43.58

43.33

43.13

42.90

42.80

42.73

42.70

42.67

42.67

42.67

42.65

42.56

42.53

42.34

42.08

41.66

41.71

41.55

41.39

41.32

L 41.25

41.19

41. ZO

41.34

41.32

41.30

41.26

41.35

Apr.

41.44

41.66

42.15

42.87

43.74

44.67

45.36

45.93

46.36

46.34

46.12

45.96

46.39

47.53

46.54

46.82

46.65

49.10

49.34

49.06

48.60

46.01

47.52

-47.11

46.85

46.91

47.35

46.15

49.24

50.54

-

May

51.78

5Z.68

52.78

52.53

53.03

54.59

57.16

59.63

61.63

6Z.78

63.96

65.39

66.51

66.93

66.47

65.39

64.73

65.12

65.81

66.10

65.65

65.03

65.01

65.76

66.65

67.13

66.45

65.15

63.73

62.49

61.29

June

60.14

59.19

58.51

58.10

57.87

57.59

57.03

56.41

55. 8Z

55.54

55.96

57.11

58.71

60.31

61.79

63.26

64.53

65.19

64.99

63.66

62.66

61.47

60.47

60.31

60.51

60.45

60.09

59.82

59.59

59.05

-

Jnly

56.59

58.44

58.38

58.71

59.49

60.31

60.71

60.82

60.56

59.97

59.41

58.79

58.23

58.11

56.45

58.70

58.80

58.65

58.32

58.01

57.62

56.66

55.96

55.05

54.35

53.94

53.65

53.25

52.79

52. 3Z

51. 8Z

Aug.

51.40

50.95

50.50

50.07

49.67

49.37

49.04

46.61

48.17

47.72

47.40

47.24

47.17

47. Z2

47.36

47.46

47.62

47.75

47.95

46.06

46.14

48.26

46.40

46.53

46.63

48.73

48.70

48.73

48.74

46.66

49.13

Sept.

49.33

49.51

49.53

49.51

49.31

49.15

49.06

49.03

49.02

49.05

49.03

46.97

48.91

46.63

48.73

48.67

46.61

48.57

46.61

46.59

46.52

46.47

46.44

46.47

46.51

48.70

46.60

48.77

48.70

48.79

Note. Add 1,700 ft to obtain elevation above mean sea level.
KOOTENAI RIVER BASIN 191

In cubic feet per second, of Kootenal River near Copeland, Idaho, 

water year October 1950 to September 1951

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26 

27

28

29

30

31

-total

Mean

Cfara

In.

Ac-ft

Oct.

5,900 

5,790

5.500 

5,610

 5,790

5,930

6,030 

5,930

6,110

6,530

7,530

8,120

7,990

7,820

7,850

7,730

8,060

8,890

9,820

12,500

15,300

14,600

12,900

11,400 

10,600

10,900 

11,300

12,300

13,200

16,400

18.900

293,210

9,458

0.706

0.81

581,600

Nov.

18.000 

16,000

14,000 

12,700

13,000

13,000

13,100 

 13,500

11,800

10,800

10,300

9,720

9,170

8,710

8,440

8,130

8,270

8,220

,800

,650

.240

,500

,500

,430 

,430

8,480 

9,120

9,830

10,100

10,100

-

305,940

10,200

0.761

0.85

606,800

Dec.

9,800 

9,200

8,500 

8,000

7,200

7,000

6-.700 

6,700

7,300

7,400

7,800

8,500

8,900

8,900

8,620

8,130

8,170

8,480

8,710

8,710

9,630

11,000

14,200

19, 00 

23 , 900

25.600 

23,300

19,800

17,100

15,300

14,500

356,550

11,500

0.858

0.99

707,200

Jan.

15.500 

12,600

11,700 

10,900

9,900

8,500

8,000 

7,600

7,650

8,100

8,100

8,100

8,300

8,300

8,200

8,100

7,900

7,500

7,200

7,100

6,850

6,700

6,600

6,600 

7,100

8,500 

8,400

7,600

5,600

5.400

5,550

252,150

8,134

0.607

0.70

500,100

Feb.

5,800 

5.750

6,300 

6,550

7,300

7,450

7,450 

7,550

8,700

15,000

33.500

33,500

38,500

34,000

31,500

19,000

16 , 500

15,500

14,500

13,500

13,000

12,000

11,000

10,500 

10,200

9,790 

9,310

8,940

_

.

-

381,590

13,630

1.02

1.06

756,900

Mar.

8.710 

8,670

8,250 

7,900

7,400

6,800

6,100 

5.800

6,100

6,450

6,750

6,930

,040

,300

,500

,550

,400

,200

6,970

6,840

 6,670

6,680

6,850

6,980 

7,030

7,240 

7,740

8,030

8,040

8,060

8,260

225,240

7,266

0.542

0.63

446,800

Apr.

8.660 grits

11,300 

13,300

16,000

18,400

30,200 

31,600

22,400

23,000

21,100

30,500

31,600

25,300

38,600

28,500

28,100

28,800

29,300

28,000

25,900

23,500

21,800

20,400 

19,500

19,800 

21,600

24,600

28,200

32.900

-

661,400

22.050

i.65

1.84

*1,312

May

37.200 

40 , 100

 39,100 

37,300

38,300

43,800

53,300 

63,000

69,300

72,500

77,300

83,500

86,300

86.900

 81,900

74,000

69,300

71,700

76,100

76,600

72,200

68,000

67,700

72,200 

77,800

78,600 

72,400

 64,700

58,300

53,200

47 , 100

*2,007.7

64.760

4.83

5.57

*3,982

June

43,300 

39,300

37,300 

36,700

37,700

37,800

36,200 

34,000

32,400

32.000

34,400

40,600

48,400

55,000

60,300

66,900

72,500

74.900

 70,800

64,100

57 , 100

51,300

46,400

46,600 

49,100

48,700 

46 , 600

46,100

45,200

42,300

-

W..A32-.9

47,760

3.56

3.98

*2,852

July

40,600 

40,300

 40,800 

43,300

46,300

52,300

53.500 

53,500

51,300

47,900

45,300

43,100

39,900

40,600

43,300

44,900

45,100

44,300

 42,500

41,300

39,900

36,800

32,900

30,000 

28,300

28,000 

27,700

27,000

25,800

24,500

23.500

*1,225.2

39.520

2.95

3.40

*2,430

Aug.

23.600 

31,400

30,600 

19,600

19,000

18,300

17,600 

16,800

15,600

14,900

14,300

13,800

13,400

13,700

13,700

13,200

13,500

12,100

11,700

11,500

10,900

10,700

 10,500

10,300 

10,500

11,200 

10,800

10,900

10,900

11,000

13,400

437,400

14.110

1.05

1.31

f 67, 600

Sept.

14,700 

15,300

15.600 

15,500

14,800

14,000

13,200 

12,800

12,500

12,300

12,100

12,000

11,800

11,300

10,700

10,200

9,600

9,400

9,000

8,800

8,700

8,600

8.500

8,600 

9,000

9,800 

10,900

10,600

10,200

10,200

-

340,700

11,360

0.848

0.95

675,800

Calendar year 1950: Max 90,800 Mln 2,600 Mean 19,800 Cfsm 1.46 In. 20.05 Ac-ft 14,330,000

Water year 1950-51: Max 86,900 Mln 5,400 Mean 21,700 Cfsm 1.62 In. 31,99 Ac-ft 15,710,000

* Discharge measurement made on this day.

* Expressed In thousands.

Note.--Channel conveyance affected by Ice Nov. 19, 22, 23, Dec. 1-4, 6-14, Feb. 1-24, Mar. 4-13. 

No gage-height record at Klockmann Ranch Jan. 3-28, Aug. 31 to Sept. 30; discharge conputed on basis 

of records for station at Bonners Ferry with allowance for inflow and channel storage.
192 KOOTENAI RIVER BASIN

Long Canyon Creek near Porthill, Idaho

Location. Lat 48°57', long. 116°32 I , in NW£ sec. 36, T. 65 N., R. 2 W., on left bank 200 

ft below United States Forest Service bridge at mouth of canyon, 4 miles southwest of 

Porthill.

Drainage area. 29 sq mi, approximately.

Records available.--May 1928 to September 1951 (no winter records prior to 1935).

Gage.--Water-stage recorder at present site since Nov. 17, 1948. Altitude of gage is 1,830 

rt (by barometer). Prior to Mar. 20, 1930, staff gages, and thereafter, water-stage 

recorder at several nearby sites and at various daturas.

Average discharge.--17 years (1934-51), 59.8 cfs.

Extremes.--Maximum discharge during year, 586 cfs June 24 (gage height, f.35 ft); minimum, 

9 cfs Sept. 20-22.

1928-51: Maximum discharge, 1,300 cfs May 27, 1948 (gage height, e.75 ft, site and 

datum then in use) by slope-area determination of peak flow; maximum gage height, 8.55 

ft (datum used Sept. 4, 1941, to Aug. 23, 1948) June 14, 15, 1933 (drift Jam); minimum 

discharge, 3 cfs Nov. 1-3, 28, Dec. 4-10, 1936, Jan. 6-8, 1937, Dec. 13, 1940.

Remarks.--Records fair. No regulation or diversion above station.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

13

13

*13

14

21

32

IS

22

47

35

38

33

36

34

34

30

32

49

72

105

85

68

60

53

107

135

133

110

118

209

146

1,915

61.8

2.13

2.46

3,800

Nov.

114

*99

92

105

108

94

85

76

68

66

64

61

55

55

51

49

46

43

40

44

40

38

36

42

52

65

60

53

48

50

-

1,899

63.3

2.18

2.44

3,770

Dec.

49

47

45

40

42

53

47

40

37

45

41

a40

a39

a36

a38

a37

a38

*39

39

40

50

55

71

95

116

90

82

76

72

72

68

1,679

54.2

1.87

2.15

3,330

Jan.

62

60

57

51

46

44

41

48

42

40

38

36

35

33

a32

a31

a30

a29

*29

28

27

26

26

26

30

29

23

b!7

al6

a!6

a!8

1,066

34.4

1.19

1.37

2,110

Feb.

a20

a22

a26

a26

a24

b21

21

21

22

81

alSO

a!20

a 90

a75

a70

*62

58

56

52

49

46

42

40

41

38

36

33

34

_

_

-

1,406

50.2

1.73

1.80

2,790

Mar.

33

32

32

29

29

b25

b23

a22

a23

a24

a24

a24

a24

a23

a23

a22

21

a21

a21

a21

a20

*20

20

19

20

21

21

21

21

21

22

722

23.3

0.803

0.93

1,430

Apr.

26

30

36

42

46

44

45

50

50

47

47

50

64

72

70

*71

78

85

78

74

70

66

62

61

61

66

74

87

97

105

-

1,854

61.8

2.13

2.38

3,680

May

110

105

103

112

117

138

183

221

257

293

333

347

281

257

245

263

*319

340

293

275

281

326

390

368

319

293

287

275

231

211

193

7,766

251

8.66

9.96

15,400

June

190

*190

197

193

190

183

183

179

193

235

287

326

333

375

428

*368

319

305

281

251

231

231

269

420

287

269

240

226

202

197

-

7,778

259

8.93

9.97

15,430

July

190

183

183

202

172

140

127

115

121

112

98

95

92

84

74

68

62

60

55

52

49

47

47

45

*40

37

34

32

30

26

23

2,695

86.9

3.00

3.46

5,350

Aug.

23

21

20

19

18

17

16

16

16

15

18

18

16

15

14

13

12

12

11

IT

11

*11

11

12

12

11

11

52

35

40

45

572

18.5

0.638

0.73

1,130

Sept.

32

37

25

20

18

17

17

19

17

15

15

14

12

12

12

11

10

10

10

9

9

10

10

10

25

19

13

12

13

55.

-

508

16.9

0.583

0.65

1,010

Calendar year 1950: Max 598 Mln - Mean 88.3 Cfsm 3.O4 In. 41.33 Ac-ft 63,930

Water year 1950-51: Max 428 Mln 9 Mean 81.8 Cfsm 2.82 In. 38. 3C Ac-ft 59,230

Peak discharge (base. 58O cfs). Hay 23 (8:30 to 1O:30 p.m.) 442 cfs (2.29 ftb June 14 (9 p.m.) 

466 cfs (2.21 ft); June 24 (4:3O a.m.) 586 cfs (2.35 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for Smith and 

Boundary Creeks near Porthill.

b Stage-discharge relation affected by Ice.
KOOTENAI RIVER BASIN 193

Smith Creek near Porthill, Idaho

Location. Lat 48°57'40", long. 116°33'20", in NE^ sec. 26, T. 65 N., R. 2 W., on right 

bank at United States Forest Service bridge, 1 mile south of Smith Creek rcnger station 

and 4 miles southwest of Porthill.

Drainage area.--70 sq mi, approximately.

Records available.--May 1928 to September 1951 (no winter records 1928-30, 19C2-34).

Gage. Water-stage recorder. Altitude of gage is 1,770 ft (from topographic irap). Prior 

to Apr. 20, 1929, staff gage 40 ft downstream at 2.67 ft lower datum.

Average discharge.--19 years (1930-32, 1934-51), 177 cfs.

Extremes.--Maximum discharge during year, 1,730 cfs June 24 (gage height, 5.9F ft); minimum, 21 cfs Aug. 22 (gage height, 1.15 ft).

1928-51: Maximum discharge, 3,150 cfs May 17, 1941, from rating curve extended 

abovfe 1,600 cfs; maximum gage height, 7.37 ft May 27, 1948; minimum discharge, 4 cfs 

Dec. 4-10, 1936; minimum gage height, 0.78 ft Sept. 4, 1931.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

Tiversion or regulation above station.

Rating table, water year 1950-51 (gage height, in feet, and discharge, 

cubic feet per second)

1.1

1.2 

1.4 

1.7 

2.0

3.0 

3.5 

4.0 

4.5 

5.0

245

405

615

865

1,140

1,440

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

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.

Ac-ft

Oct.

32

32

*30

42

90

143

80

114

170

152

208

161

156

132

124

107

122

320

538

590

391

275

228

198

484

630

615

492

556

926

560

8,698

281

4.01

4.62

17,250

Nov.

416

*346

320

422

484

370

317

275

235

228

208

189

173

171

161

157

151

142

128

138

132

124

119

144

185

260

228

210

181

171

-

6,785

226

3.23

3.60

13,460

Dec.

162

151

150

135

115

136

138

132

131

150

151

145

135

131

127

124

142

*139

132

139

202

230

352

508

595

388

317

275

245

248

220

6,345

205

2.93

3.37

12 , 590

Jan.

195

183

181

166

14S

142

138

145

145

135

128

124

119

116

111

109

107

103

*100

99

97

96

94

93

108

116

80

65

60

60

66

3,629

117

1.67

1.93

7,200

Feb.

75

80

105

105

99

94

102

120

156

500

770

412

270

230

210

*191

180

170

160

150

140

130

125

125

130

120

110

115

_

-

-

5,174

185

2.64

2.75

10,260

Mar.

116 116-

112

108

102

88

80

75

80

82

82

82

82

80

80

78

72

72

72

72

70

*69

68

68

70

72

71

71

71

71

72

2,504

80.8

1.15

1.33

4,970

Apr.

81

92

104

123

135

136

146

156

148

144

148

175

266

296

269

*278

326

349

296

260

245

240

230

240

260

299

349

416

448

433

-

7,088

236

3.37

3.77

14,060

May

405

349

329

398

735

871

1,040

1,110

1,140

1,240

1,340

1,270

936

850

876

1,050

*1,240

1,170

936

909

1,000

1,220

1,400

1,200

975

887

936

865

650

544

500

28,371

915

13.1

15.07

56,270

June

516

*575

640

605

580

480

456

460

570

745

914

1,000

926

992

1,130

887

775

730

650

560

516

516

705

1.250

760

675

570

492

436

426

-

20,537

685

9.79

10.91

40,730

July

412

384

374

452

360

346

293

251

260

245

200

185

170

157

145

135

124

115

107

96

90

84

76

73

*70

65

61

58

54

50

il

5,539

179

2.56

2.94

10,990

Aug.

45

42

40

38

35

33

32

30

29

29

47

75

47

40

35

32

29

27

25

23

22

*22

26

27

30

23

24

79

77

111

132

1,306

42.1

0.601

0.69

2,590

Sept.

101

99

69

58

51

46

44

54

47

41

40

37

34

32

31

30

29

28

26

23.

24

25

26

27

85

75

51

45

52

195

-

1,525

50.8

0.726

0.81

3,020

Calendar year 1950: Max 1,600 Min 13 Mean 272 Cfsm 3.39 In- 52.79 Ac-ft 197,100

Water year 1950-51: Max 1,400 Min 22 Mean 267 Cfsm 3.31 In. 51.79 Ac-ft 193,400

* Discharge measurement made on this day.

Note. No gage-height record Jan. 8-13, 20-24, Jan. 27 to Feb. 8, Feb. 13-15, Feb. 17 to Mar. 21, 

Apr. 21-25; discharge estimated on basis of weather records and records for Boundary Creek and other 

nearby streams.
194 KOOTENAI RIVER BASIN

Boundary Creek near Porthill, Idaho 

(International gaging station)

Location.--Lat 48°59'50", long. 116°34 I 05", In SW£ sec. 11, T. 65 N., R. 2 W., on left 

bank near mouth of canyon, 0.2 mile south of International boundary aM 3 miles west 

of Porthill.

Drainage area.--97 sq ml, approximately. 

Records available. May 1928 to September 1951.

Gage.--Water-stage recorder. Altitude of gage Is 1,770 ft (from topograchic map). Prior 

to Apr. 24, 1929, staff gage 140 ft upstream at different datum.

Average discharge.--21 years (1930-51), 181 cfs.

Extremes. Maximum discharge during year, 1,620 cfs May 12 (gage height, 4.44 ft); maximum gage height, 4.65 ft Feb. 11 (ice jam); minimum discharge, 26 cfs Oct. 3 (gage 

height, 0.70 ft).

1928-51: Maximum discharge, 2,530 cfs May 28, 1948 (gage height, 5.34 ft), from 

rating curve extended above 1,500 cfs; minimum, 5 cfs sometime betweei Nov. 10 and 

Dec. 3, 1936 (gage height, 0.27 ft).

Remarks. Records good except those for periods of ice effect, which are poor. No 

regulation or diversion above station.

Cooperation.--This station is one of the international gaging stations maintained by 

the United States under agreement with Canada.

Rating table, water year 1950-51, except periods of Ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

0.7 

.9 

1.2 

1.5 

1.8

2.1 

2.5 

3.0 

3.5 

4.2

258

417

630

910

1,430

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

r

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

Itotal

Mean

Cfsm

In.

Ac-ft

Oct.

31

32

 30 

41

84

132

75

77

109

107

136

109

99

88

82

73

82

216

369

345

227

172

153 

140

309

425

441

381

369

558

401

5,893

190

1.96

2.26

11,690

Nov.

317

 266

244 

313

317

309

270

227

196

210

199

174

162

170

159

157

155

147

127

147

140

132

124 

132

157

224

207

199

182

174

-

5,997

200

2.06

2.30

11,890

Dec.

162

147

153 

132

115

159

166

142

134

147

153

147

140

129

138

134

140

 143

140

143

177

196

278 

401

469

361

309

278

248

244

218

6,041

195

2.01

2.32

11,980

Jan.

159" 202

191 

179

157

157

151

b!55

157

149

143

138

134

130

127

125

125

118

115

112

110

 107

105 

102

113

124

91

70

b65 bSB"

b75

3,981

128

1.32

1.53

7,900

Feb.

b85

b95

bl!5 

bl!7

bllO

bllO

b!20

blSO

b200

540

b657

445

321

274

251

224

213

b205

b!95

186

168

151

149 

b!44

b!40

140

127

b!30

_

_

-

5,762

206

2.12

2.21

11,430

Mar.

132

132

125 

127

120

b!09

b97

b92

blOO

blOO

b99

99

98

96

95

92

86

86

86

86

85

 84

Si 

81

82

85

85

81

88

86

86

2,981

96.2

0.992

1.14

5,910

Apr.

95

107

125 

153

182

186

202

218

202

196

202

244

353

385

357

361

405

417

361

317

281

262

251 

262

297

361

401

441

481

481

-

8,586

286

2.95

3.29

17,030

May

465

417

m780

952

1,130

1,180

1,230

1,320

1,330

1,390

1,070

959

959

1,090

 1,310

1,240

1,020

966

1,020

1,190

1.410 

1,200

987

896

896

840

680

603

554

29,966

967

9.97

11.49

59,440

June

549

 572

598 

594

580

506

485

497

567

662

786

903

840

910

1,010

786

695

662

603

544

497

477

536 

903

594

549

477

417

385

577

-

18,561

619

6.38

7.12

36,820

July

373 3"J3

337 

.229.

3?9

239

248

244

227

136

184

170

157

145

134

124

115

 107

99

93

89

84 

78

73

70

66

63

61

57

5§

5,3^9

172

1.77

2.05

10,5X>

Aug.

51

49

47 5

*3

42

41

41

40

39

73

99

58

52

47

42

40

37

36

35

34

»53

3? 

49

44

38

37

101

91

120

124

1,667

53.8

0.555

0.64

3,310

Sept.

95

93

72 

64

58

54

52

66

56

52

50

47

44

42

41

40

40

40

38

37

36

39

45 

42

70

62

48

45

54

142

-

1,664

55.5

0.572

0.64

3,300

Calendar year 1950: Max 1,630 Min 24 Mean 258 Cfsm 2.66 In. 36.11 Ac-ft 186,800

Water ater year year 195o-51i 195o-51i Max Max 1,410 1,410 Mln Hln 30 50 Mean Mean 264 264 Cfsm Cfsm 2.72 2.72 In. In. 36.99 56.99 Ac-ft Ae-ft 191,300 191,300

Peak discharge (base. 750 efsl.--Peb. 11 (about 1 a.m.) about 850 cfsj May 12 (1 a.m.) 1,620 cfi 

4.44 ft); May 17 (9 p.m.) 1,490 cfs (4.27 ft)j May 23 (8:30 p.m.) 1,550 cfs (4.35 ft); June 14 

>:30 p.m.) 1,190 cfs (3.90 ft); June 24 (4:30 a.m.) 1,320 cfs (4.06 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.
KOOTENAI RIVER BASIN 195

Kootenai River at Porthill, Idaho 

(International gaging .station)

Location. Lat 49°00'00", long. lie'SO'lO", in SW$ sec. 8, T. 65 N., R. 1 W. , 01 right 

bank 300 ft south of international boundary at Porthill.

Drainage area. 13,700 sq mi, approximately.

Records available. May to July 1904 and October 1927 to March 1928 (gage heights only). 

April 1928 to September 1951 in reports of Geological Survey. October 1924 to September 1927 (gage heights only) in reports of Department of Resources and Development, 

Canada.

Gage. Water-stage recorder. Datum of gage is 1,700.00 ft above mean sea level referred 

Fo benchmark 10-M-1928, at elevation 1,767.68 ft (datum of 1929, supplementary adjustment of 1947, and datum of Geodetic Survey of Canada, Pub. 24, 1951 Edition, are 0.03 

ft higher). Prior to May 17, 1928, staff gages at approximately same site. Datum of 

gage prior to July 28, 1928, was 38.34 ft higher, except in 1904 when different datum 

was used.

Average discharge. 23 years, 15,000 cfs.

Extremes. Maximum daily discharge during year, 88,600 cfs May 14; maximum elevation, 

1,763.11 ft May 26; minimum daily discharge, 5,590 cfs Oct. 3, Jan. 30; minimum elevation, 1,740.68 ft Mar. 30.

1928-51: Maximum daily discharge, 125,000 cfs June 1, 1948; maximum elevation, 

1,766.16 ft May 31, 1948; minimum daily discharge, 1,380 cfs, Feb. 8, 1936; minimum 

elevation, 1,738.21 ft Apr. 3, 1944.

Maximum elevation known, 1,772.7 ft in June 1894, present datum.

Remarks. Records excellent except tho,se for periods of ice effect near Copelard or no 

gage-height record at KLockmann Ranch, which are good. Daily discharge represents entire flow passing international boundary, computed by adding tributary inflow, including 

that of Boundary Creek, to flow at station near Copeland and correcting for storage 

change in channel and flooded areas between stations near Copeland and at Pcrthill. 

Boundary dike of Reclamation Farm and United States Forest Service roadway eike (south 

side of Boundary Creek) remained intact and flow of river was confined throughout year 

to main channel on which gage and cableway are located. Elevations affectee by backwater from Kootenay Lake. Dike of drainage district number 14 in Kootenai Valley in 

United States broke May 11, affecting elevations and discharge at high stages.

Cooperation. This station is one of the international gaging stations maintaired by the 

United States under agreement with Canada.

Elevation, in feet, water year October 1950 to September 1951

Day

1

2

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

Oct.

48.02

48.00

47.97

47.98

47.99

48.06

48.07

48.07

48.09

48.04

48.08

48.17

48.21

48.21

48.20

48.17

48.18

48.24

48.33

48.57

48.84

48.78

48. S3

48.46

48.33

48.46

48.49

48.60

48.70

49.12

49.39

Nov.

49.22

48.88

48.56

48.42

48.52

48.51

48.56

48.50

48.38

48.30

48.27

48.28

48.23

48.22

48.20

48.18

48.14

48.16

48.11

48.11

48.11

48.29

48.19

48.17

48.16

48. H2

48.26

48.36

48.40

48.39

Dec.

48.33

48.28

48.21

48.20

48.03

47.96

48.01

48.05

48.08

48.14

48.18

48.20

48.26

48.26

48.20

48.18

48.19

48.22

48.20

48.21

48.29

48.41

48.73

49.32

50.09

50.38

50.06

49.50

49.04

48.75

48.70

Jan.

48.60

48.48

48.40

48.31

48.16

48.04

47.90

47.86

47.86

47.83

47.78

47.70

47.61

47.57

47.49

47.44

47.40

47.30

47.18

47.05

46.97

46.93

46.84

46.78

46.77

46.93

46.82

46.47

46.23

46.16

46.09

Feb.

46.04

46.08

46.09

46.07

46.03

. 46.00

45.92

45.79

45.82

46.44

49.32

51.36

50.56

49.26

48.41

47.91

47.57

47.15

46.73

46.36

46.03

45.68

45.33

44.99

44.74

44.46

44.19

43.94

.

- '

Mar.

43.70

43.56

43.29

43.15

42.89

42.73

42.54

42.43

42.34

42.32

42.28

42.23

42.22

42.16

42.07

42.03

41.86

41.63

41.44

41.29

41.14

41.00

40.91

40.83

40.76

40.74

40.83

40.80

40.76

40.71

40.78

Apr.

40.84

41.02

41.37

41.88

42.58

43.22

43.77

44.23

44.62

44.64

44.50

44.42

44.77

45.64

' 46.43

46.73

46.81

47.07

47.25

47.12

46.77

46.35

45.98

45.70

45.52

45.56

45.83

46.43

47.28

48.21

Hay

49.24

50.00

50.20

50.07

50.59

51.80

53.93

56.05

57.56

58.65

59.64

60.82

61.69

62.12

61.96

61.40

61.07

61.36

61.80

62.07

61.88

61.54

61.58

62.10

62.72

63.08

62.70

61.88

60.90

59.97

59.03

June

58.21

57.40

56.80

56.40

56.08

55.78

55.28

54.70

54.21

53.94

54.20

55".05

56.21

57.36

58.62

59.74

60.73

61.28

61.28

60.60

59.75

58.94

58.22

58.08

58.10

58.07

57.83

57.60

57.44

57.04

July

56.70

56.54

56.45

56.63

57.13

57.72

58.07

58.17

58.05

57.63

57.21

56.76

56.33

56.19

56.35

56.52

56.59

56.47

56.21

55.98

55.64

55.06

54.33

53.60

52.99

52.58

52.27 si. do

51.50

51.06

50.64

AVR.

50.24

49.83

49.43

49.02

48.69

48.40

4.^.09

47.70

47.35

43.91

43.64

43.53

43.48

43.52

43.67

43.83

47.03

47.21

47.43

47.53

47.66

47 . 78

47.97

43.09

43.19

49.27

49.25

49.28

49.28

49.35

49.53

Sept.

48.68

48.79

48.78

48.75

48.62

48.52

48.48

48.48

48.48

48.52

48.52

48.44

48.41

48.34

48.30

48.26

48.22

48.20

48.24

48.22

48.18

48.14

48.10

48.12

48.16

48.29

48.32

48.32

48.29

48.36

-

Note. Add 1,700 ft to obtain elevation above mean sea level.
196 KOOTENAI RIVER BASIN

Discharge, In cubic feet per second, of Kootenal River at Forthlll, Idaho, 

water year October 1950 to September 1951

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

Ibtal

Mean

Cfsm

In.

Ac-ft

Oct.

5,990 

5,890

5.590 

5,700

6,000

6,210

6,200

6,150

6,440

6,860

7,890 

8,390

8,280

8,090 

8,120

7,960

8,300

9,460

10,800

13,400

15,900

15,200

15,500 

11,900

11,600

12,100 

12,500

13,300

14,200

17,900 

19.900

309,720

9,991

0.729

0.84

614,500

Nov.

19.000 

17,000

14,900 

15,700

14,000

13,800

13,800

13,200

12,400

11,400

10,700 

10,200

9,610

9,150 

8,850

8,530

8,670

8,560

8,140

8,000

7.570

7,720

7,850 

7,790

7,850

9,020 

9,620

10,300

10,500

10, 500

322,330

10,740

0.784

0.87

639,300

Dec.

10,200 

9,610

8,920 

8,340

7,600

7,410

7,050

7.020

7,500

7,730

8,140 

8,850

9,200

9,220 

8,980

8,470

8,510

8,810

9,060

9,070

10,000

11,400

14, 700 

20,300

24,700

26.500 

24,300

20,800

18,000

16,100 

15,100

371,390

11,980

0.874

1.01

736 , 600

Jan.

14.100 

15, 100

12,200 

11,400

10,400

8,950

8,450

7,990

8,020

8,460

8,460 

8,470

8,670

8,650 

8,550

8,420

8,210

7,820

7,540

7,450

7,150

6,970

6,890 

6,870

7,380

8,700 

8,660

8,000

5,900

5.590 

5,770

263,130

8,488

0.620

0.71

521,900

Feb.

6,020

5.950

6,560 

6,820

7,560

7,710

7,750

7,940

9,090

15,800

33.300 

32,000

29,900

25,500 

22,600

19,800

17,200

16,200

15,200

14,100

13,600

12,500

11,500 

11,000

10, 700

10,300 

9,760

9,380

-

-

395,720

14,130

1.03

1.07

784,900

Mar.

9.140 

9,050

8,680 

8,270

7,800

7,130

6,420

6.060

6,360

6,890

6,990 

7,170

7,270

7,540 

7,760

7,780

7,690

7,520

7,270

7,120

6,940

6,940

7,080 

7,200

7,250

7,440 

7,880

8,230

8,250

8,280 

8,420

233,620

7,536

0.550

0.63

463,400

Apr.

S.S40 

9,790

11,300 

13,300

16,000

18,400

20,300

21,800

22,600

22,400

21,600 

21,100

22,100

25,600 

28,900

29,100

29,000

29,600

30,000

28,800

26,800

24,400

22,600 

21,200

20,300

20,600 

22,500

25,200

28,800

55.400

676,130

22,540

1.65

1.84

*1,341

May

57.600 

40,600

39,900 

38,500

39,700

44,900

53,700

65, 200

70,200

74,200

79,200 

84,100

87,400

88.600 

84,500

77,600

73,000

74, 200

77,800

78,500

75,000

71,500

71,100 

74,300

79,200

80,200 

75,300

68,100

61,400

54,900 

49,700

t2 ,068.1

66,710

4.87

5.61

*4,102

June

44, 700 

41,500

39,500 

38,600

39,400

59,300

37,900

55,700

34,300

34.000

36,200 

42,000

49,200

55,900 

61,400

67,500

73,000

75.900

72,500

66,600

59,600

53, 800

48,900 

49,500

50,700

50,700 

48,500

47,600

46,500

43,800

a ,484. 5

49,480

3.61

4.05

*2,944

Jvly

42,000 

41,400

41,800 

44 100

48.400

52,400

55.800

54 000

52/200

49,100

46.500 

45.100

40.900

41,100 

43.300

45.000

45.300

44 . 700

43.100

41,700

40,500

37,600

33,800 

30,900

29,000

28.500 

28,100

27,400

26,200

24.900 

25.900

*1,244.5

40.150

2.93

3.58

*2,468

Augj

25.000 

21,800

21,000 

19,900

19,500

18,600

17,900

17,100

15,900

15,200

14, 600 

14,100

13,600

13,800 

13,700

13, 200

12,500

12,100

11,700

11,500

10,900

10,700

10,500 

10.500

10,500

11,200 

10,900

11,100

11,100

11,200 

15,600

442,500

14,270

1.04

1.20

877,700

Sept.

14,800 

15,500

15.800 

14, 700

15,000

14,200

13,400

13,000

12,600

12,400

12,200 

12,100

11,900

11,400 

10,800

10,500

9,710

9,500

9,060

8,880

8,800

8,110

8.600 

8,670

9,170

9,880 

11,000

10, 700

10,500

10,600

544,680

11,490

0.839

0.94

683, 700

Calendar year 1950: Max 91,600 Mln 2,726 Mean 20,450 Cfsm 1.49 In. 20.25 Ac-ft 14,810,000

Water year 1950-51: Max 88,600 Mln 5,590 Mean 22,550 Cfsm 1.63 In. 22.13 Ac-ft 16,180,000

Expressed In thousands.
KOOTENAI RIVER BASIN 197

Kootenay Lake at Kuskonook, British Columbia 

(International gaging station)

Location. Lat 49°18 | , long. 116°40', on east shore of lake at Kuskonook. 

Records available.--April 1936 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,735.17 ft above mean sea level, Geodetic 

Survey of Canada, datum of Pub. 24, 1951 edition, which is the same at Porthlll as 

datum of 1929, supplementary adjustment of 1947, and 0.03 ft higher than datan in use 

at station Kootenai River at Porthill. Gage heights have been reduced to latter datum. 

Prior to Apr. 25, 1938, staff gage at same site at datum 3.00 ft higher.

Extremes. Maximum elevation during year, 1,755.97 ft May 27; minimum, 1,739.70 ft

1936-51: Maximum elevation, 1,761.25 ft June 11, 1948; minimum daily, 1,737.83 ft 

Apr. 5, 6, 1944. ;

Remarks. Elevation is subject to partial regulation by iferra LinVi Dam below outlet. 

Practically no diversion or regulation above Kootenay Lake.

Cooperation.--This station is one of the international gaging stations maintained by 

Canada under agreement with the United States.

Elevation, in feet, water year October 1950 to September 1951

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

47.74

47.71

47.70

47.72

47.74

47.76

47.78

47.77

47.77

47.68

47.63

47.71

47.76

47.77

47.75

4.7.73

47.74

47.74

47.76

47.75

47.76

47,75

47.75

47.71

47.66

47.71

47.69

47.71

47.72

47.75

47.75

Nov.

47.66

47.55

47.50

47.52

47.57

47.58

47.58

47.58

47.59

47.61

47.65

47.68

47.71

47.73

47.73

47.71

47.67

47.63

47.62

47.64

47.70

47.76

47.72

47.70

47.70

47.69

47.71

47.75

47.78

47.76

-

Dec.

47.74

47.73

47.73

47.72

47.67

47.64

47.64

47.67

47.69

47.73

47.73

47.72

47.75

47.71

47.69

47.68

47.72

47.71

47.70

47.71

47.72

47.74

47.77

47.83

47.92

47.88

47.83

47.72

47.57

47.57

47.61

Jan.

47.62

47.60

47.57

47.54

47.52

47.49

47.42

47.38

47.38

47.34

47.27

47.18

47.11

47.04

46.96

46.88

46.80

46.71

46.61

46.51

46.48

46.44

46.38

46.32

46.28

46.28

46.14

346.06

a45 . 94

345.84

a45.78

Feb.

a45.74

a45.73

345.68

345.61

a45.53

345.44

a45.37

a45.27

345.20-

45.18

45.38

45.58

45.79

45.87

45.83

45.67

45.45

45.23

45.00

44.77

44.52

44.26

44.02

43.78

43.54

43.36

43.18

42.99

_

_

-

Mar.

42.66

42.70

42.55

42.43

42.25

42.07

41.95

41.84

41.72

41.67

41.62

41.53

41.43

41.39

41.31

41.25

41.10

40.92

40.75

40.58

40.43

40.32

40.19

40.10

40.00

39.96

39.90

39.83

39.80

39.78

39.78

Apr.

39.78

39.79

39.85

39.95

40.03

40.21

40.37

40.53

40.73

40.86

41.00

41.11

41.24

41.40

41.64

41.89

42.15

42.43

42.59

42.76

42.87

42.95

42.96

42.95

42.90

42.88

42.88

42.96

43.10

43.31

-

May

43.62

43.93

44.24

44.50

44.80

45.16

45.73

46.50

47.45

48.36

49.33

50.43

51.47

52.18

52.81

53.28

53.65

53.98

54.23

54.47

54.65

54.81

55.04

55.33

55.59

55.76

55.86

55.81

55.62

55.29

54.87

June

54.42

53.95

53.49

53.08

52.62

52.17

51.73

51.32

50.94

50.70

50.68

50.87

51.17

51.57

52.16

52.75

53.25

53.69

54.08

54.28

54.27

54.13

53.92

53.72

53.56

53.56

53.55

53.46

53.33

53.24

-

July

53.11

53.00

52.93

52.92

52.98

53.12

53.28

53.36

53.37

53.33

53.20

53.04

52.91

52.78

52.70

52.66

52.66

52.62

52.50

52.35

52.09

51.77

51.41

51.03

50.63

50.26

49.91

49.62

49.32

48.97

48.63

Aug.

48.32

48.01

47.69

47.38

47.09

46.30

46.53

46.21

45.88

45.57

45.37

45.35

45.41

45.49

45.66

45.92

46.20

46.47

46.73

46.88

47.04

47.21

47.40

47.53

47.59

47.62

47.63

47.64

47.63

47.64

47.65

Sept.

47.66

47.65

47.63

47.59

47.54

47.56

47.60

47.65

47.67

47.72

47.73

47.70

47.68

47.67

47.69

47.69

47.68

47.68

47.72

47.72

47.70

47.68

47.68

47.70

47.69

47.68

47.68

47.69

47.72

47.77

a Mean dally elevations estimated on basis of records for stations at Queens Bay and East Branch. 

Note. Add 1,700 ft to obtain elevation above mean sea level.
198 COLUMBIA RIVER MAIN STEM

Columbia River at Birchbank, British Columbia 

(International gaging station)

Location. Lat 490 10', long. 117 0 43', on right bank at Birchbank, British Columbia, 7 

miles upstream from Trail, 11 miles downstream from Kootenai River, and 17 miles upstream from international boundary.

Drainage area. 34,000 sq mi, approximately.

Records available. April 1913 to September 1951. Published as "at Trail, British Columbia" 

1913~37 

Gage. Water-stage recorder. Datum of gage is 1,329.90 ft above mean s<?a level (levels 

oy Geodetic Survey of Canada, 1947 international joint adjustment). Prior to Oct. 1, 

1937, chain or cable gage on highway bridge at site 7 miles downstream at datum 16.27 

ft lower.

Average discharge. 38 years, 69,520 cfs.

Extremes.--Maximum discharge during year, 229,000 cfs May 27 (gage height, 37.22 ft); minimum, 20,100 cfs Feb. 1 (gage height, 6.28 ft).

1913-51: Maximum discharge, 370,000 cfs June 11, 1948 (gage height, 50.62 ft); minimum observed, 8,940 cfs Feb. 3, 1937 (gage height, 6.27 ft, site and datum then in use).

.rks. Records excellent. Small diversions above station for irrigation. Fluctuation 

t low flow caused by powerplant on Kootenai River. Flow affected b-r partial regulation of Kootenai River in Kootenay Lake.

Cooperation. This station is one of the international gaging stations maintained by

Canada under agreement with the United States.

Revisions (water years). W 982: 1942. Corrected figures of monthly discharges for the 

water year 1949, superseding those published in Water-Supply Paper 1152, are given in 

the following table.

Revised monthly discharge, in cubic feet per second, 1948-49

Month

Calendar year 1948 .........

May ...........................

September .....................

Water year 1948,49 ..... ....

Cfs- days

1,254,300 

873,000 

691,100

28,649,800

556,000 

444,400 

525,600 

1,062,700 

4,594,100 

5,005,000 

3,093,400 

2,342,700 

1,454,500

21,896,800

Discharge In cubic feet per second

Maximum

47,000 

33,700 

25,800

369 , 000

20,100 

17,700 

18,600 

66,600 

210,000 

203,000 

112,000 

92,500 

57,800

210,000

Minimum

33,700 

25,800 

18,700

16,900

16 , 100 

14,000 

16,200 

17,200 

68,200 

118,000 

92,000 

58,300 

36,600

14,000

Mean

40,500 

29,100 

22,300

78,300

17,900 

15,900 

17', 000 

35,400 

148,000 

167,000 

99,800 

75,600 

48,500

60,000

Per 

square 

mile

1.19 .8" 

.6'

2.3'

.5' 

.41 .5' 

1.0' 

4.3' 

4.91 2.9' 

2.2Z 1.4'

1.7'

Runoff

Inches

1.37 

.96 

.76

31.35

.61 

.49 

.58 

1.16 

5.02 

5.48 

3.39 

2.56 

1.60

23.98

Acre-feet

2,488,000 

1,732,000 

1,371,000

56,830,000

1,103,000 

881,500 

1,043,000 

2,108,000 

9,112,000 

9,927,000 

6,136,000 

4,647,000 

2,885,000

43,430,000
COLUMBIA RIVER MAIN STEM 199

Columbia River at Birchbank, British Columbia Continued

Rating tables, water year 1950-51 (gage height, In feet,

Oct.

7.

9.

12.

14.

, 1

.4

.0

.0

.0

to

24

32

47

58

discharge,

Jan. 8

,700

,300

,500

,000

in cubic feet per s

6.4

8.0

10.0

14.0

Jan

20,

27,

36,

56,

. 9

600

500

700

200

second)

to Sept.

20.

26.

32.

38.

. 30

,0 89

,0 129

,0 178

.0 237

and

,000

,000

,000

,000

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8 

9

10

11

12 

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

45,600 

45,300

41,800

41,200

39,800

38,800

38,400

39,200 

42,500

47,700

42,200

56.400 

39,500

44,800

43,400

41,800

41,200

43,100

*45,400

48,900

48,200 

47,700

47,000

46,500

44,800

46,400

49,200

49, 100

49,000

51,300

55,300

(1,381.5

44,600

1.31

1.51

2,740

Nov.

58.000 

54,200

47,700

43,400

42,900

43,700

42,700

41,000 

39,700

37,300

36,600

33,900 

33,400

33,200

35,400

40,000

38,800

33,400

30,800

30,400

26.000 

29,600

33,800

32,100

31,900

32,700

32,100

31,700

32,000

35,200

-

tt.,115.6

37,200

1.09

1.22

2,213

Dec.

32,900 

30,700

31,300

29,100

27 , 900

28,300

25,600

25.000 

25,200

25,600

29,400

27,600 

27,900

*30,100

30,200

28,700

28,600

28,500

29,000

28,000

29,500 

29,900

33,000

38,400

46,400

50,100

52.200

51,700

47 , 900

41,600

37,000

H.027.3

33,100

0.97

1.12

2,038

Jan.

36,200 

39.600

37,800

35,300

31,700

30,400

30,400

28,100 

28,300

31,200

»31,500

31,400 

31,200

30,800

32,100

31,400

31,600

31,100

30,500

27,400

27,000 

25,700

26,600

27,500

27,400

28,000

»31,200

28,500

25,300

23,700

21,600

930,500

30,000

0.88

1.02

1,846

Feb.

20.700 

22,200

22,900

26,100

25,300

26,300

27,800

27 , 500 

29,800

33 , 600

37,400

39,100 

40,100

41,800

43,500

38,900

44,700

45.200

44,200

42,800

43,100 

41,800

40,900

39,500

37,400

36,000

34,300

33,300

-

-

-

986,200

35,200

1.04

1.08

1,956

Mar.

52.300 

31,300

29,800

29,000

30,300

28,100

27,200

27,000 

22.500

22,600

22,400

23,900 

23,900

24,400

25,100

25,600

27,800

28,200

28,400

27 , 100

27 , 100 

26,600

25,800

24,500

23,300

22,300

23,200

23,200

23,200

22,700

22,500

301,100

25,808

0.76

0.88

1,589

Apr.

22,700 

23,800

22.20C

26,800

27,300

28,700

31,600

33,000 

35,800

34,400

35,500

36,600 

38,000

39,700

41,200

42,700

44,700

46,400

47,700

*48,500

49,200 

49,400

49,900

49,800

50,900

51,500

52,200

53,500

54,600

56.000

U, 222.3

40,700

1.20

1.34

2,424

May

51.60C

61*300

63,800

67,200

71,500

76,900

83,500 

91,500

101,000

111,000

128,000 

143,000

155,000

167,000

«L76,000

184,000

191,000

195,000

199,000

«202,000 

205,000

211,000

218,000

223,000

228,000

229,000

227,000

223,000

216,000

208,000

*4,772.3

154,000

4.53

5.22

9,466

June

200,000 

194,000

187 , OOO

184,000

182,000

177,000

172,000

166,000 

160,000

154,000

152. OOC

154, OOC 

159, OOC

»168,000

181,000

195,000

206,000

216,000

221,000

223 , 000

222,000 

219,000

216,000

214,000

209,000

205,000

204,000

202,000

199,000

197,000

5,738

191,000

5.62

6.27

11,380

July

194,000 

193,000

193,000

197,000

201,000

206,000

213,000

216,000 

218,000

219.000

218,000

216,000 

214,000

213,000

213,000

213,000

214,000

216,000

218,000

216,000

214,000 

209,000

202,000

197,000

191,000

185,000

181,000

176,000

172,000

168,000

163,000

6,259

202,000

5.94

6.85

12,410

Aug.

159.000

154,000

150,000

146,000

142,000

137,000

135,000

129,000 

123,000

116,000

110,000

102,000 

95,400

90,700

85,000

79,700

78,400

77,500

76,500

75,300

74,700 

73,500

71,600

71,700

73,900

73,600

72, 200

72,700

73,100

71,700

70,200

*?,058.2

98,700

2.90

3.34

6,066

Sept.

^m70,000

69,000

65,100

59,300

58,500

57,800 

56,800

58,300

58,500

56,800 

55,900

54,000

52,300

51,600

50,400

48,800

47,500

46,500

45,600 

46,700

43,900

44,000

47,400

47,500

43,900

42.900

43,100

45,700

*1,6103

53,700

1.58

1.76

3,195

Calendar year 1950: Max 325,000 Min 17,000 Mean 78,600 Cfsm 2.31 

Water year 1950-51: Max 229,000 Min go,700 Mean 79,200 Cfsm 2.55

In. 51.58 Ac-ft 56,870,000 

In. 51.61 Ac-ft 57,320,000

* Discharge measurement made on this day.

* Expressed In thousands.

Note.--No gage-height record Feb. 13 to Mar. 29; discharge estimated on basis of records at Trail, 

D.C.

288995 0-54-14
200 PEND OREILLE RIVER BASIN

Flint Creek near Southern Cross, Mont.

Location. Lat 46°14', long. 113°18', In NWi sec. 36, T. 6 N., R. 14 W., on left King 

wall of weir half a mile downstream from powerplant, 2 miles downstrea-n from Georgetown Lake, 3 miles northwest of Southern Cross, and 6 miles south of Philipsburg,

Drainage area. 52.5 sq ml.

Records available.--October 1940 to September 1951.

Gage. Staff gage and Clppolettl weir; gage read once daily.

Average discharge. 11 years, 35.0 cfs.

Extremes. Maximum discharge observed during year, 168 cfs July 11 (gage height, 1.65 

ft); minimum observed, 16 cfs Mar. 21 to Apr. 13, Apr. 25 to May 5.

1940-51: Maximum discharge observed, 174 cfs (revised) June 13, 1918 (gage 

height, 1.86 ft); probably no flow Aug. 20, 1943, when generator was s^ut down.

Revision.--The maximum discharge for the water year 1942 has been revised to 174 

cfs June 13 (gage height, 1.86 ft), superseding figure published in Water-Supply 

Paper 962.

Remarks. Records good except those above 50 cfs, which are fair. Flow regulated by 

Georgetown Lake (see p. 249).

Cooperation. Gage-height record furnished by The Montana Power Co., undo" general 

supervisor! of Geological Survey, in connection with a Federal Power Co-omission 

project.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge. In cubic feet per second 

(Shifting-control method used Mar. 21 to May 5)

0.5 

.7 

1.0 

1.2 

1.7

15

24

41

60

181

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

31 

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

31

31

31

31

31

31

31

 «S1

31

31

SI

31

31

961

31.0

1,910

Nov.

31 

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

31

31

31

31

51

31

 31

31

-

930

31.0

1,840

Dec.

31 

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

31

31

31 

31

31

31

31

31

31

31

31

31

961

31.0

1,910

Jan.

31 

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

31

31

31

31

31

 31

31

31

31

31

31

31

31

961

31.0

1,910

Feb.

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

31

31 

31

31

31

31

31

31

31

_

-

868

31.0

1,720

Mar.

|1

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

31

tf

16

16

16

16

16

16

16

16

16

796

25.7

1,580

Apr.

if16

16

16

16

16

16

16

16

16

16

16

17ft

17

17 

17

17

17

17 

17

17

17

16

 16

16

16

16

16

-

491

16.4

1 974

May

if16

16

16

24

24

24

27

27

25

24

24

22

 22

22

22

21

21

21

21 

21

21

18

18

18

31

5T

31

31

31

702

22.6

1,390

June

Ii

31

31

31

31

31

31

47

47

47

47

»130

130

i25.

125

89 

87

87

46

46 

39

46

130

130

87

56

56

56

84

-

1,995

66.5

3,960

July

84 

84

84

84

106

84

47

47

47

96

»^65

52

46

48

60

47s47

48

48

40

39

39

39

47

47

47

48

47

39

1,836

59.2

3,640

Aug.

37 

37

37

ii

46

46

37

33

33

31

31

31

30

»29

28

28

28 

28

28

28

28 

28

28

28

33

33

33

33

33

33

31

1,012

32.6

2,010

Sept.

31

31

31

31

28

28

23Zi

30

30

30

30

29

29

29

29

29

 29

29

29

29 

29

29

43

ii

47

47

47

47

47

-

995

33.2

1,970

Calendar year 1950: Max 30 Mln 15 Mean 27.3 Ac -ft 19,750

Water year 195O-51: Max 165 Mln 16 Mean 34.3 Ae-ft 24,810

 Discharge measurement made on this day.
PEND OREILIE RIVER BASIN 201

Trout Creek near Southern Cross, Mont.

Location. Lat 46"16 I 40", long. 1130 20'50", in W^NWi sec. 15, T. 6 N., R. 14 W., on 

right bank a quarter of a mile upstream from mouth, 4f miles southwest of Philipsburg, and 6? miles northwest of Southern Cross.

Drainage area. --34 .8 sq mi.

Records available. December 1945 to September 1951 (discontinued).

Gage. Water -stage recorder.

Average discharge. 6 years, 36.6 cfs.

Extremes. --Maximum discharge during year, 196 cfs Feb. 10 (gage height, 4.58 ft), from 

rating curve extended above 100 cfs; minimum, 7.6 cfs Mar. 5 (gage height, 2.56 ft).

1945-51: Maximum discharge, 331 cfs Apr. 16, 1948 (gage height, 5.67 ft), from 

rating curve extended above 80 cfs by logarithmic plotting; minimum, 7.1 cfs Mar. 

14, 1949 (gage height, 2.54 ft).

Remarks . Records good except those for period of no gage-height record, which are poor. 

Diversions for irrigation of about 2,500 acres above station; bypass diversions 

irrigate an additional 1,500 acres. During irrigation season flow is supplemented 

by water from East Fork Rock Creek which is diverted in sec'. 5, T. 4 N. , F . 14 W. , 

500 ft below Rock Creek Dam, through a canal into Trout Creek.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.6

2.7 

2.9 

3.1

3.4 

3.8 

4.3

56

99

159

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

26

29

30

31

Total

Mean

Ao-ft

Oct.

45"

43 

41

42

41

39

38

38

37

36

35

35

34

35

33

33

32

31

31

31

31

31

30

29

»29

30

30

29

29

29

1,072

34.6

2,130

Nov.

ft28 

28

27

27

27

27

24

26

27

26

26

26

24

26

25

25

23

24

24

23

23

24

28

26

24

23 *!! 

5?-

763

25.4

1,510

Dec.

22 

20

19 

21

11

20

21

20

20

20

20

20

19

18

19

19

19

18

18

18

18

IB

20

21

21

19

18

17

17

17

592

19.1

1,170

Jan.

'if

16 

16

15

14

14

15

15

14

14

15

14

15

14

14

14

14

14

14

13

13

14

14

15

13

a!2

aTT

all

434

14.0

861

Feb.

a14 

15

16

15

16

18

47

118

54

26

19

18

18

17

16

16

16

16

14

15

16

16

15

14

15

_

-

621

22.2

1,230

Mar.

14 

14

14 

14

13

14

15

15

15

14

15

15

16

15

16

16

16

15

16

23

24

18

22

38

30

24

23

28

27

598

19.3

1,190

Apr.

33 

45

§

40

34

31

31

29

26

24

25

29

27

23

23

23

23

21

21

22

21

21

21

10

»21

20

21

22

23

812

27.1

1,610

May

22

23

24

37

42

34

33

£5.

47

40

38

46

47

44

40

38

36

36

35

35

35

33

33

43

41

48

44

38

31

34

41

1,203

38.8

2,390

June

43 

43

44

54

53

50

48

45

47

50

52

55

SI 54

57

56

58

54

52

52

52

51

59

60

58

59

62

62

65

-

1,604

53.5

3,180

July

65 

66

67 

77

77

73

69

74

81

98

 97

100

77

76

75

75

70

67

70

66

70

74

76

97

104

122

118

122

129

138

141

2,711

87.5

5,380

Aug.

138 

138

139 

147

147

144

138

132

130

130

129

110

101 »97

89

84

80

72

82"

74

69

75

84

90

92

94

95

96

98

82

3,245

105

6,440

Sept.

80 

80

78 

73

53

45

41

36

35

35

36

35

33

31

22.

29

»29

31

30

32

33

36

42

45

55

58

64

42

40

41

1,327

44.2

2,630

Calendar year 1950: Max 133 Mln 16 Mean 36.1 Ac-ft 26,150

Water year 1950-51: Max 147 Mln 11 Mean 41.0 Ao-ft 29,720

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of temperature records and records for stations on nearby streams.
202 PEND OREILLE RIVER BASIN

Flint Creek at Maxville, Mont.

Location. Lat 46°28'00", long. 113°14'30", In Ntf£ sec. 9, T. 8 N., R. 13 W. , on right 

bank 0.4 mile west of Maxville and 1 mile upstream from Boulder Creek.

Drainage area. 208 sq ml (revised).

Records available.--August 1941 to September 1951. April 1939 to Septemler 1941 at 

site half a mile upstream; records not equivalent owing to diversions.

Gage. Water-stage recorder. Datum of gage is 4,828.44 ft above mean see level, datum 

of 1929.

Average discharge. 10 years, 105 cfs.

Extremes. Maximum discharge during year, 480 cfs Feb. 10 (gage height, 4.19 ft); minimum, 27 cfs Jan. 27 (gage height, 1.40 ft).

1941-51: Maximum discharge, 1,680 cfs Mar. 28, 1943 (gage height, 6.79 ft), from 

rating curve extended above 600 cfs; minimum, 27 cfs Mar. 4, 1945, Jar. 26, 1946, Jan. 

27, 1951; minimum gage height, 1.31 ft Mar. 4, 1945.

Remarks. Records excellent except those for periods of ice effect, whicr are poor.

Diversions for irrigation of about 8,200 acres above station. During irrigation season flow Is supplemented by water from East Fork Rock Creek which is diverted in 

sec. 5, T. 4 N., R. 14 W., 500 ft below Rock Creek Dam, through a canal Into Trout 

Creek, thence into Flint Creek. Some regulation by Georgetown Lake (capacity, 31,000 

lacre-ft), see p. 249).

Rating tables, water year 1950-51, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Mar. 25 Mar. 26 to Sept. 30

1.6 

1.8 

2.0 

2.5 

3.0 

3.7

41

56

73

128

198

331

1.8 

2.1 

2.5 

3.0 

3.5 

3.9

56

81

124

189

275

367

Discharge, In cubic feet per second, water year October1 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

90

91

91

87

36

92

54

82

79

78

76

75

74

13

76

74

76

77

75

73

76

80

77

75

 74

76

79

82

78

78

83

2,467

79.6

4,890

Nov.

83

86

83

S3

83

82

83

84

76

22

90

87

91

90

91

85

85

87

85

bSS

87

84

85

86

102

~§4 105

91

*82

84

-

2,590

86.3

5,140

Dec.

82

76

77

78

62

66

87

80

78

77

77

77

76

69

75

73

73

71

72

74

74

73

95

103

135

84

76

 75

71

72

70

2,393

77.2

4,750

Jan.

67

68

66

64

bSO

56

56

b58

bSO

b55

bSO

bSO

bSO

b60

b62

b57

b56

b55

b55

b58

bS5

bSl

59

 69

67

42

b38

b36

b3T

b39

1,774

57.2

3,520

Feb.

b42

b46

50

50

59

62

68

78

91

248

309

T36

92

84

85

81

74

77

75

 73

70

67

b64

b63

b65

bSO

b58

b60

.

_

-

2,387

85.2

4,730

Mar.

b59

b58

b57

b56

bSO

b55

b56

b60

b56

b55

b62

70

75

73

76

78

70

74

75

*81

98

116

76

104

174

185

ITS

83

85

109

104

2,546

82.1

5,050

Apr.

127

134

155

152

140

136

126

125

118

110

105

101

109

123

113

109

106

106

96

88

86

86

85

76

72

72

 76

82

99

108

-

3,221

107

6,390

May

96 io5

100

124

150

158

181

"zJI 299

214

218

267

243

209

 183

174

185

194

189

178

164

169

192

238

186

181

172

238

217

182

178

5,850

189

11,600

June

169

142

129

126

158

174

161

164

153

151

162

183

206

272

*315

351

349

287

249

224

196

182

169

188

254

218

194

183

171

168

-

6,048

202

12,000

Ju]y

175

204

194

206

231

212

183

167

167

*231

245

233

172

156

154

144

135

125

123

115

106

108

105

T5s

120

137

141

152

158

164

165

5,033

162

9,980

Aug.

164

165

162

168

174

169

161

153

152

157

160

151

132

126

 122

111

110

105

92

102

101

91

1(55

110

115

117

120

121

123

136

124

4,096

132

8,120

Sept.

114

113

113

112

94

83

76

70

68

67

70

68

66

60

58

56

*56

58

57

65

69

73

112

116

114

117

121

T5s

95

93

-

2,539

84.6

5,040

Calendar year 1950: Max 397 Mln 40 Mean 97.1 Ao-ft 70,320

Water year 1950-51: Max 351 Mln 36 Mean 112 Ao-ft 81,210

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
PEND QREILLE RIVER BASIN 203

Boulder Creek at Maxville, Mont.

Location. lat 46°28>30", long. 113°14'00", in SE£ sec. 4, T. 8 N., R. 13 W., on right 

bank an eighth of a mile upstream from mouth and three-quarters of a mile north of 

Maxville.

Drainage area. 71.3 sq mi.

Records available. April 1939 to September 1951.

Gage. Water-stage recorder. Prior to July 7, 1941, wire-weight gage at private bridge 

T& ft upstream at different datum; July 8-20, 1941, temporary staff gage at site 100 

ft upstream from private bridge at datum 1.03 ft higher. July 21 to Aug. 11, 1941, 

staff gage at same site and datum.

Average discharge. 12 years, 48.5 cfs.

Extremes. Maximum discharge during year, 410 cfs June 16 (gage height, 3.27 fi); mlnimum daily, 8 cfs Jan. 30.

1939-51: Maximum discharge, 763 cfs June 3, 1948 (gage height, 4.24 ft); minimum, 4.6 cfs Dec. 26, 1942.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor. Bypass diversions for Irrigation of about 350 acres below station.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.1 

1.3 

1.6 

2.0

2.5 

3.0 

3.2

175

305

374

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9 

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ae-fl

Oct.

||

26

28

34

40

37

35

37 

35

34 

32

31

30

31

31

32

31

31

29

31

33

32

31

29

*30

32

31

32

35

35

984

31.7

1,950

Nov.

32 

32

31

32

33

32

33

29

25 

b22

b34

b32

b30

b28

29

29

30

b28

b28

30

29

29

30

31

32

32

31 *29

29

-

903

30.1

1,790

Dec.

28 

28

b26

28

b£2

b25

a28 

a28

a28 

a28

a28

27

26

a27

a28

a27

a25

a25

a25

a25

26

27

28

26

26 26

24

25

24

822

26.5

1,630

Jan.

24 

24

24

24

a20

b!9

b!8

b!9

b20 

b20

b20 

b21

b21

b21

22

22

22

21

b!8

b!7

b!9

22

b21 *21

21

21

13

bll

b9

b8

blO

593

19.1

1,180

Feb.

a*b20

a22

a27

a25

a30

a35

a45 

a75

alSO

a50

a35

a30

a30

825

a21

a 20

a!9 20

19

b!7

b!8

820

a!9

a!8

blS

818

-

-

-

854

30.5

1,690

Mar.

817

a!6

blS

blS

815

b!6

b!7

blT" blS

b!5

b!7 

b!8

818

a!6

a!7

a!8

a!7

a!6

a!7 *18

18

18

17

17

18

18

18

17

17

16

16

523

16.9

1,040

Apr.

ti

20

21

23

24

25

26

26 

23

22 

23

28

31

28

27

29

34

31

30

28

28

27

26

27

29 *32

38

47

4T

-

830

27.7

1,650

May

if

42

47

59

86

101

159

167 

161

182 

221

182

150

*131

137

163

193

188

182

182

221

299

345

zsS

221

239

342

261

211

190

5,404

174

10,720

June

169 

151

141

135

146

153

151

144

m

171 

204

250

 281

338

370

31S

275

247

229

199

186

173

207

219

177

171

161

150

141

5,937

198

11,780

July

141 

150

141

151

153

135

126

118

114 

141

 139 

118

109

102

98

94

89

84

80

74

65

62

57

55

53

49

49

46

42

40

12

2,912

93.9

5,780

Av«.

I

34

34

31

28

27

28

28 

28

2S 

28

 28

26

26

25

25

23

20

20

20

21

23

23

19

17

15

TS

17

21

19

768

24.8

1,520

Sept.

17 

16

16

16

16

15

T6

15

15 

15

16 

16

16

16

15

21

 26

27

26

28

30

29

34

36

39

41

3l

31

30

28

697

23.2

1,380

Calendar year 1950: Max 429 Mln 5.2 Mean 51.1 Ae-ft 37,010

Water year 1950-51 : Max 370 Mln 8 Mean 58.2 Ac-ft 42,110

unknown); May 12 (l to 2 a.m.) 242 

) 378 efs (3.20 ft); June 16 (2:30

Peak discharge (base. 150 cfs). Feb. 11 (time and discharge u 

cfs (2.78 ft); May 24 (2 a.m.) 406 efs (3.28 ft); May 28 (8 a.m. 

a.m.) 410 cfs (3.27 ft); June 25 (3 a.m.) 244 efs (2.75 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of temperature records and reco-ds for 

Flint Creek at Maxville and Trout Creek near Southern Cross.

b Stage-discharge relation affected by ice.
204 PEND OREILLE RIVER BASIN

Middle Fork Rock Creek near Philipsburg, Mont.

Location. Lat 46°11", long. 113°30', In NE£ sec. 17, T. 5 N., R. 15 W., on dovmstream 

side of bridge half a mile upstream from East Pork, 2j miles upstream from confluence 

with West Fork, and 15 miles southwest of Philipsburg.

Drainage area. 123 sq ml.

Records available.--September 1937 to September 1951.

Gage.--Wire-weight gage read twice daily: Sept. 21, 1937, to May 10, 1942, wire-weight 

gage at site one-fourth of a mile upstream at different datum. May 11, 1942, to Nov. 

9, 1950, staff gage at same site and datum.

Average discharge. 14 years, 122 cfs.

Extremes. Maximum discharge during year, 1,180 cfs May 28 (gage height, 3.60 ft from 

graph based on gage readings), from rating curve extended above 500 cfs; minimum daily, 

15 cfs Jan. 29.

1937-51: Maximum discharge, 1,360 cfs May 29, 1948 (gage height, 3.80 ft), from 

rating curve extended above 550 cfs on basis of slope-area determination of peak flow; 

minimum observed, 4.5 cfs Dec. 9, 10, 23, 24, 1944 (gage height, 0.0? ft).

Remarks . Records fair except those for period of ice effect, which are poor, 

diversions for Irrigation above station.

A few small

Rating tables, water year 1950-51, except for period of Ice effect (gajre height, 

In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 9 Nov. 10 to Sept. 30

1.0

0.5 

.7

1.2 

1.5 

2.0

158

284

2.5 

3.0 

3.5

455

725

1,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

1617'

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Ac-ft

Oct.

"61 53

61

63

61

63

61

59

63

63

64 

61

63

64

64

59

61

63

66

68

66

66

66

66

61

 66

63

66

66

66

64

1,957

63.1

0.513

0.59

3,880

Nov.

66

66

63

66

66

66

66

63

39

51

tt

76

66

74

74

62

62

70

68

65

65

65

65

66

69

70

70

*56

57

~

1,964

65.5

0.533

0.59

3,900

Dec.

60

62

53

52

57

62

62

46

54 

56

56

50

53

53

39

40

40

42

46

45

44

42

44

39

40

*38

36

37

37

1,506

48.6

0.395

0.46

2,990

Jan.

37

37

33

26

30

16

19

26

34

26

34 

34

34

34

36

34

34

36

24

36

37

38

34

 42

4ff

36

18

b!6

b!5

b!6

b!9

931

30.0

0.244

0.28

1,850

Feb.

b22

b26

b30

34

37

36

39

41

43

50

ft

40

42

43

40

41

42

45

 41

41

26

19

23

30

25

22

30

-

-

-

1,007

36.0

0.293

0.31

2,000

Mar.

29

30

26

28

27

26

31

27

35

24

28 

36

36

36

36

34

34

17

22

*34

36

35

37

41

41

33

36

38

38

38

37

1,006

32.5

0.264

0.30

2,000

Apr.

37

38

46

54

58

63

65

70

61

70

69 

72

78

68

69

78

81

93

78

88

88

91

88

86

86

 96

95

115

191

T75

-

2,442

81.4

0.662

0.74

4.840

May

174

154

152

137

T67

220

293

447

489

512

578 

624

606

481

*436

436

464

508

541

546

536

606

788

1,010

892

802

825

 1,070 *915

692

584

16,685

538

4.37

5.04

33.090

June

522

405

373

373

394

402

409

402

402

420

402 

394

 508

541

810

855

945

930

855

832

532

485

489

508

494

420

377

360

330

299

-

15,468

516

4.20

4.69

30.680

July

281

278

290

330

335

302

284

278

276

290

 302 

290

276

270

270

256

251

220

208

200

198

174

165

160

154

141

129

127

121

119

115

7,085

229

1.86

2.14

14.050

Aug.

115

T09

109

109

106

104

100

100

98

98

91 

91

91

*95

96

91

86

83

81

80

!§

83

86

96

100

104

104

104

102

106

100

2,996

96.6

0.785

0.90

5.940

Sept.

98

95

72

68

65

65

65

62

60

58

58 

58

58

57

57

56

57

 58

57

57

56

56

60

56

54

53

50

5T

52

51

1,815

60.5

0.492

0.55

3.600

Calendar year 1950 : Max 1,290 Mln 10 Mean 162 Cfsm 1.32 In. 17.90 Ac-ft 117,500

Water yearigso-51 : Max 1,070 Mln 15 Mean 150 Cfsm 1.22 In. 16 59 Ac-ft 108,800

Peak discharge (base. 450 cfs).--May 12 (2 ] 

(3.47 ft); May 28 (1 p.m.) 1,180 ofs (3.60 ft. 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

.m.) 660 cfs (2.90 ft); May 24 (2 p.m.) 1,080 ofs 

; June 17 (3 p.m.) 1,020 ofs (3.40 ft).
PEND OREILLE RIVER BASIN 205

Blackfoot River near Helmville, Mont.

Location. Lat 46°56'10", long. 112°56'30", in NW&Swi sec. 25, T. 14 N., R. 11 W., on 

right bank 50 ft downstream from county highway bridge, 2 miles downstream from 

Arrastre Creek, and 5 miles northeast of Helmville.

Drainage area. 481 sq mi.

Records available. September 1940 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,301.29 ft above mean sea level, datum 

of 1929 (Corps of Engineers benchmark).

Average discharge.--11 years, 340 cfs.

Extremes. Maximum discharge recorded during year, 2,540 cfs May 25 (gage height, 6.75 

ft); minimum daily, 110 cfs Jan. 29.

1940-51: Maximum discharge, 3,180 cfs June 6, 1948 (gage height, 7,55 ft); minimum daily, 50 cfs Jan. 3, 1950.

Remarks. Records excellent except those for periiods of ice effect or no gage-height 

record, which are poor. Plow includes natural overflow channel on left ban>, but 

does not include unnamed diversions past station. Diversions for irrigation of about 

1,500 acres above station. Bypass diversions may irrigate an additional 500 acres 

below station.

Rating tables, water year 1950-51, except periods of Ice effect (gage 

height, In feet, and(discharge. In cubic feet per second)

Oct. 1 to Apr. 7

1.3 

1.7 

2.0

131

208

284

1.8 

2.2 

2.5

212

313

403

Apr. 8 to Sept. 30

3.0 

3.5 

4.0

586

790

1,030

5.0 

6.0 

6.7

1,540

2,090

2,510

Discharge, In cubic feet per second, water year Octoberisso to September 19il

Day

1

2

3

4

5

1

6

7

B

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.

Ac-ft

Oct.

206

201

199

197

199

208

204

199

197

195

199

195

195

195

195

193

197

206

206

199

199

197

 197

195

193

193

195

199

201

201

206

6,161

199

0.414

0.48

12,220

Nov.

204

208

206

206

204

206

215

Tl3

b210

b!95

blB8

al85

al83

al83

al84

186

184

186

178

176

180

178

199

186

188

190

 186

182

178

178

-

5,743

191

0.397

0.44

11,390

Dec.

176

174

168

b!65

bl60

a!75

a!90

b!86

184

180

180

178

176

172

172

170

172

170

170

174

180

180

188

199

210

210

195

190

 184

182

180

5,590

180

0.374

0.43

11,090

Jan.

.176

17?

172

166

166

b!60

b!55

b!58

b!6S

170

168

 166

164

166

166

166

166

164

b!60

b!50

b!53

b!55

blSO

b!53

«b!56

159

b!40

b!25

bllO

bTTs

b!25

4,837

156

0.324

0.37

9,590

Feb.

b!30

b!35

b!40

b!45

blSO

blSO

blSO

b!60

b!75

190

213

215

204

b!95

b!85

176

172

170

168

164

 162

161

b!59

b!57

155

155

153

152

-

-

-

4,636

166

0.345

0.36

9,200

Mar.

150

blSO

blSO

blSO

b!40

b!30

b!35

b!38

b!40

a!42

a!45

a!47

b!48

b!49

150

152

148

146

145

143

 148

153

152

148

153

168

174

166

162

166

176

4,664

150

0.312

0.36

9,250

Apr.

199

213

230

247

257

254

270

307

334

334

325

322

343

382

411

415

425

460

460

456

428

422

 415

395

388

395

422

481

616

862

11,468

382

0.794

0.89

22,750

May

950

890

822

880

955

1,150

1,550

1,730

1,810

al,900

a2,100

a2,400

a2,400

a2,400

a2,100

*1,950

1,930

2,130

2,320

2,260

2,130

2,060

2,170

2,410

2.510

2,300

2,070

2,000

1,970

1,850

1,730

57,827

1,865

3.88

4.47

114,700

June

1,570

1,410

1,310

1,260

1,320

1,300

1,280

1,290

1,300

1,340

1,490

 1,660

1,800

1,880

1,990

2,180

2.260

2,'lo6

1,900

1,720

1,620

1,480

1,330

1,300

1,280

1,220

1,190

1,150

1,100

1.020

45,050

1,502

3.12

3.48

89,360

July

980

950

935

955

1.020

1,020

995

940

910

990

935

858

 826

822

844

812

776

745

711

679

647

616

586

560

545

538

520

499

484

466

452

23,616

762

1.58

1.82

46,840

A>g.

439

435

425

415

411

392

375

362

356

349

349

349

334

322

313

 307

299

291

285

277

272

267

2§5

313

296

277

272

272

275

305

299

1C, 218

330

0.686

0.79

20,270

Sept.

277

267

262

254

252

245

240

235

233

230

245

259

245

235

228

226

221

221

217 219

219

224

224

221

219

237

240

230

224

217

7,066

236

0.491

0.55

14,020

Calendar year 1950: Max z 420 Mln 50 Mean 412 Cfsm 0.857 In. 11.63 Ac-ft 298,400

Water year 1950-51: Max 2) 510 Mln 110 Mean 512 Cfsm 1.061 In. 14.44 Ac-ft 370,700

Peak discharge (base. 650 cfsl. May 12 (time and discharge unknown); May 25 (2 to 6 a.m.) 2,540 

cfs (6.75 ft); June 17 (2 to 6 a.m.) 2,290 cfs (6.33 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of temperature records and records for station near Ovando.

b Stage-discharge relation affected by Ice.
206 PEND OREILLE RIVER BASIN

Nevada Creek above reservoir, near 'Finn, Mont.

Location (revised) . La t 46°47', long. 112°46', in NEi sec. 19, T. 12 N., R. 9 W., on 

right bank 1 mile upstream from Buffalo Creek and 4 miles west of Finr.

Drainage area. 128 sq mi.

Records available.--Apr11 1939 to September 1951.

Gage. Water-stage recorder. Prior to Apr. 30, 1942, wire-weight gage at site an eighth 

of a mile upstream at different datum.

Average discharge.--12 years, 35.2 cfs.

Extremes.--Maximum daily discharge during year, 800 cfs Apr. 2; maximum gage height, 

5.47 ft Apr. 2 (backwater from ice); minimum daily discharge, 4 cfs Jan. 29.

1939-51: Maximum discharge, 1,440 cfs Apr. 16, 1948, from rating curve extended 

above 350 cfs; maximum gage height, 6.09 ft Mar. 18, 1947 (ice jam); minimum discharge 

probably less than 2 cfs at times in January and February 1944.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions for irrigation of about 2,500 acres above station.

Rating tables, water year 1950-51, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to June 15 June 16 to Sept. 30

0.8 

1.0 

1.2 

1.5

2.0 

2.5 

3.0

3.8

155

233

430

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

8.5

9.4

9.7

11

13

17

14

15

15

17

18

20

22

20

19

19

20

20

19

18

20

20

21

*19

19

20

20

20

20

19

19

541.6

17.5

1,070

Nov.

18

19

19

19

19

19

20

18

an

a!2

a!8

a!8

a20

a21

a20

a!6

a!7

a!6

a 15

a!7

a 18

a!8

al7

a!7

a!8

al8

*17

17

17

17

532

17.7

1,060

Dec.

17

17

16

15

13.

14

16

17

17

16

16

16

16

12

17

17

16

17

18

18

16

15

20

1^

^3

22

18

16

*15

15

14

517

16.7

1,030

Jan.

14

15

15

15

14

13

12

12

13

12

12

12

12

12

13

12

12

12

a!2

a!2

a!3

a!2

a!2

a!2

*14

13

8

5

4

a5

a6

360

11.6

714

Feb.

a8

all

a!4

a!5

a!4

a!3

16

20

25

50

150

75

50

40

a35

a28

a23

a2O

a!8

a!5

*14

13

12

11

10

10

10

10

_

_

-

730

26.1

1,450

Mar.

9

9

9

8

8

9

10

10

9

8

8

8

9

10

12

10

10

10

12

13

*13

16

14

15

75

180

200

Too

75

75

150

1,104

35.6

2,190

Apr.

400

800

650

402

290

202

170

148

102

81

75

82

108

103

73

66

72

76

61

60

63

52

51

46

44

46

*49

62

84

112

4,630

154

9,180

May

112

102

T17

176

170

186

224

241

245

243

257

328

353

*306

228

205

235

297

304

273

241

224

243

293

282

220

193

198

194

181

170

7,041

227

13,970

June

154

131

110

110

159

154

140

135

130

131

148

175

181

*180

176

177

167

154

139

124

111

102

95

96

85

73

71

64

60

M

3,786

126

7,510

Jrly

49

51

47

56

59

47

42

39

43

*Tt

62

50

*44

42

42

42

39

38

35

33

32

24

24

27

28

29

28

28

26

28

26

1,232

39.7

2,440

Aug.

25

23

18

17

17

15

14

14

17

19

21

22

20

19

18

17

*16

15

16

16

15

16

27

26

22

21

21

24

27

"28 37

623

20.1

1,240

Sept.

li

24

24

21

20

19

18

17

17

16

22

22

18

16

16

15

15

15

14

15

*18

20

22

21

20

24

21

20

19

19

-

575

19.2

1,140

Calendar year 1950: Max 532 Min 7 Mean 41.3 Ac-ft 29,870

Water year 1950-51: Max 800 Min 4 Mean 59.4 Ac-ft 42,990

* Discharge measurement made on this day.

a No gage-height record (stage-discharge relation probably affected by ice during most of periods); 

discharge estimated on basis of temperature records.

Note.--Stage-discharge relation affected by ice Nov. 27 to Jan. 18, Jan. 25-29, Feb. 7-14, Feb. 21 

to Apr. 3.
FEND QREILLE RIVER BASIN 207

Blackfoot River near Ovando, Mont.

Location. Lat 47°01'10", long. 113°13'40", (revised), in SE$NW£ sec. 34, T. IE N., R. 13 

fl,, on left bank a quarter of a mile upstream from Monture Creek and 5 miles west of 

Ovando.

Drainage area. 1,274 sq mi (revised).

Records available. September 1940 to September 1951.

Qage. Water-stage recorder. Datum of gage is 3,917.27 ft above mean sea level, datum 

of 1929 (Corps of Engineers benchmark).

Average discharge. 11 years, 829 cfs.

Extremes. Maximum discharge during year, 6,080 cfs May 24 (gage height, 5.81 ft); minimum, 165 cfs Jan. 28 (gage height, 1.50 ft).

1940-51: Maximum discharge, 8,200 cfs May 22, 1948 (gage height, 6.84 ft); minimum daily, 130 cfs Jan. 3, 1950.

Ploodmarks indicate stage of 10 ft reached in recent years.

Remarks. Records excellent except those for periods of ice effect or no gage-Might record", vihieh are poor. Diversions for irrigation of about 25,000 acres above station.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.7 

2.0 

2.4 

2.8 

3.2

196

270

453

730

1,130

3.5 

4.0 

5.0 

5.8

1,510

2,250

4,200

6,060

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

44S 

448

436

436

442

448 

459

453

442

448

448

448

448

442

442

442

448

471

483

483

477

471

471

*471 

465

471

465

489

507

546

546

14,394

464

0.364

0.42

28,550

Nov.

546 

553

553

553

560

567 

580

57?

501

b490

b480

b480

483

b485

b490

b490

495

501

501

489

501

483

453

477 

520

526

520

*495

489

477

"

15,311

510

0.400

0.45

30,370

Dec.

471 

459

453

426

.3J8

448 

520

453

453

442

448

465

453

442

442

431

436

431

436

436

442

448

453

483 

507

513 *477

465

459

448

442

14,080

454

0.356

0.41

27,930

Jan.

426 

420

442

404

409

365 

b350

b360

b380

b420

b420

b410

b410

b410

404

393

393

393

363

b320

b340

b360

*b340

b370 

383

393

275

217

b200

b5IO~

b240

11,220

362

0.284

0.33

22,250

Feb.

Sis

b330

b360

b370

b370 

b380

b400

b460

580

622

b59S

b560

520

483

442

426

393

*393

388

383

378

368

368 

383

368

b340

b330

-

-

-

11,565

413

0.324

0.34

22,940

Mar.

b330 

b320

b320

b320

294

250 

b265

b300

b320

b330

b340

b340

335

339

348

353

353

335

*335

339

348

378

373

378 

442

553

682 '555"

540

507

601

11,871

383

0.301

0.35

23,550

Apr.

l.«

1,320

1,300

1,230

1,110 

990

990

990

920

890

830

920

1,020

1,040

1,050

1,120

1,200

1,240

1,210

1,170

1,170

*1 140

1,130 

1,130

1,150

1,210

1,340

1,590

2.03C

-

34,440

1,148

0.903

1.03

68,310

May

2,250 

2,140

1.960

2,020

2,150

2,640 

3,250

3,650

3,880

4,220

4,860

5,680

5,680

*5,750

5,360

4,760

4,600

4,900

5,040

5,110

4,970

5,020

5,440

5.960 

57775

5,440

5,060

4,970

4,670

4,330

3,970

135,520

4,372

3.42

3.95

268,800

June

3,590 

3,230

2,950

2,820

2,890

2,910 

2,840

2,780

2,730

2,800

3,050

*3,49C

3,950

4,310

4,950

5. 410

57275

4,950

4,470

4,050

3,760

3,490

3,210

3,190 

3,130

3,010

2,910

2,780

2,620

2.470

-

104,010

3,467

2.7Z

3.04

206,300

July

2,390 

2,390

2,390

2,490

2,560

2.640 

2,530

2,370

2,230

2,350

2,250

*2,090

2,000

1,980

2,000

1,940

1,850

1,760

1,690

1,590

1,510

1,430

1,350

1,290 

1,260

1,210

1,180

1,120

1,090

1,050

1.010

56,990

1,838

1.44

1.66

113,000

Aig.

'575 980

950

920

910

890 

850

813

793

784

775

775

748

722

 706

690

666

643

629

622

608

601

608

650 

650

601

594

603

615

666

666

22,694

732

0.57E

0.66

45,010

Sept.

629 "555

601

594

594

587 

573

567

560

553

573

601

594

573

560

553

553

553

*553

573

573

580

587

587 

601

629

629

615

608

594

-

17,555

585

0.459

0.51

34,820

Calendar year 1950 : Max 5,720 Min 130 Mean 1,026 Cfsm 0.805 In. 10.93 Ac-ft 742,400

Water year 1950-51 : Max 5,960 Min 200 Mean 1,232 Cfsm 0.967 In. 13.13 Ac-ft 891,800

Peak discharge (base. 1.600 cfs). May 24 (9 to 11 a.m.) 6,080 cfs (5.81 ft),- June 16 (10 a.m.) 

5,580 cfs (5.60 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
208

PEND OREILLE RIVER BASIN

Blackfoot River near Bonner, Mont.

Location. Lat 46°53'40", long. 113°46'50", in SW^SWi sec. 8, T. 13 N., R. 17 W., on right 

Bank 4 miles northeast of Bonner, 6 miles downstream from Union Creek and 6 miles upstream from mouth.

Drainage area. 2,294 sq mi (revised).

Records available.--July 1898 to June 1901, May 1903 to October 1905, October 1939 to September 1951. Published as Blackfoot River at Bonner 1898-99 and as B'<? Blackfoot River 

near Bonner 1903-5.

Gage. Staff gage read once daily. Datum of gage is 3,322.94 ft above mean sea level, 

Saturn of 1929, Pacific Northwest supplementary adjustment of 1947. Jily 1898 to June 

1901, May 1903 to October 1905, chain gage at site 6 miles downstream at different 

datum.

Average discharge. 12 years (1939-51), 1,470 cfs.

Extremes. Maximum discharge during year, 11,000 cfs May 13 (gage height, 9.10 ft, from 

graph based on gage readings); minimum daily, 400 cfs Jan. 29.

1898-1901, 1903-5, 1939-51: Maximum discharge observed, 17,200 cfs June 19-21, 1899 

(gage height, 8.7 ft, site and datum then in use); minimum daily, 200 cfs Jan. 4, 5, 

1950.

Remarks. Records fair except those for periods of ice effect, which are poor, 

for irrigation of about 35,000 acres above station.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Diversions

3.0 

4.0

680

975

1,740

2,740

6.0 

8.0 

9.1

5,420

8,780 

11,OOO

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

708

713

718

718

724

 730

718

708

696

708

730

735 

724

724

724

730

730

753

765

759

765

753

771

777

783

789

807

825

873

885

897

23,440

756

0.330

0.38

46,490

Nov.

915

921

933

921

927

957

*1,OOO

1,030

988

969

957

963 

975

982

994

994

1,010

1,010

1,020

1,040

1,060

1.070

1,050

1,040

1,010

994

994

988

982

982

-

29,676

989

0.431

0.48

58,860

Dec.

945

945

850

870

800

750

850

969

945

873

849

800 

 790

790

790

795

789

777

783

783

795

813

837

861

909

963

957

945

933

921

915

26,592

858

0.374

0.43

52,740

Jan.

927

955

921

921

837

730

718

735

771

837

831

825 

825

801

783

783

777

730

»670

650

700

750

700

789

801

813

700

550

400

450

500

23,158

747

0.326

0.38

45,930

Feb.

550

630

700

750

800

820

830

870

920

1,050

1,250

1.700 

1,500

1,350

1,200

1,050

950

900

880

870

860

820

750

750

800

760

750

*730

.

-

-

25,790

921

0.401

0.42

51.150

Mar.

730

720

710

7OO

700

600

650

700

750

771

807

807 

759

747

759

753

741

747

735

735

730

741

783

819

891

933

988

*1,070

1,070

1,100

1.190

24,936

804

0.350

0.40

49^460.

Apr.

1.170

1,190

1,270

2,020

2,280

2,390

2,410

2,580

2,720

2,780

3,020

3,110 

3,320

3,380

3,600

3,520

3,630

3,520

3,440

3,340

3,280

3,160

3,030

2,940

2,790

2,880

2,920

3,230

 3,690

4.610

-

87,220

2,907

1.27

1.42

173,000

May

5,120

4,670

4.460

4,690

4,970

4,850

6,340

*7,640

8,060

8,360

9,260

10,400 

10.800

10,300

9,650

8,880

8,420

8,680

8,840

8,800

8,650

8,460

9,030

9,810

9,870

9,120

8,590

8,400

8,000

7,420

6,870

247,410

7,981

3.48

4.01

490,700

June

6,310

5,760

5,270

5,000

5,120

5,200

4,970

4,850

4,750

4,750

5,030

5,500 

6,020

»6,500

7,180

7,950

8.150

7,590

6,740

6,290

6,100

5,720

5,340

5,160

5,150

4,910

4,740

4,570

4,360

4.040

-

169,020

5,634

2.46

2.74

335,200

Jvly

3,140

2,660

2,760

3,460

4.190

4,110

4,050

3,760

3,590

3,590

3,470

3,260 

3,120

3,090

3,040

2,920

 2,810

2,660

2,540

2,420

2,280

2,180

2,060

1,990

2,020

1,890

1,820

1,760

1,690

1,620

1.570

8E.520

2,759

1.20

1.38

16?, 600

Aug.

1.510

1,460

1,400

1,360

1,330

1,290

 1,270

1,230

1,230

1,220

1,210

1,200 

1,200

1,190

1,180

1,160

1,150

1,120

1,080

1,040

982

957

963

975

988

1,010

1,010

1,000

988

988

975

35,666

1,151

0.502

0.58

70,740

Sept.

969

982

975

988

994

982

975

975

951

963

975

963 

951

939

921

903

879

867

 873

873

879

885

891

891

915

957

988

1.000

994

1/000

-

28,298

943

0.411

0.46

56,130

Calendar year 1950: Max 9,190 Mln, 200 Mean 1,910 Cfsm 0.833 I". 11.51 Ac-ft 1,383,000

Water year 1950-51: Max 10,800 Mln 400 Mean g,210 cfBm 0.963 In. 13.08 Ac-ft 1,600,000

Peak discharge (base. 2.500 cfe). Apr. 17 (7 a.m.) 3,680 cfs (4.77 -ft); May 13 (2 a.m.) 11,000 

cfs (9.10 ft); June,17 (5 a.m.) 8,360 cfs (7.78 ft); July 5 (8 a.m.) 4,230 cfs (5.18 ft). 

* Discharge measurement made on this day. 

Mote. Stage-discharge relation affected by ice Dec. 3-7, 12-15, Jan. 18-23, Jan. 27 to Mar. 9.
FEND OREILLE RIVER BASIN 209

Clark Fork above Missoula, Mont.

Location. lat 46°52'40", long 113e 55'40", in NW&iWi sec. 19, T. 13 N., R. 18 W., on 

right bank 3 miles dovmstream from Blaokfoot River and 3 miles east of Missoula.

Drainage area. 5,740 sq ml, approximately. 

Records available. March 1929 to September 1951. 

Gage. Water-stage recorder. 

Average discharge. 22 years, 2,659 cfs.

Extremes. Maximum discharge during year, 20,400 cfs May 15 (gage height, 10.04 ft); 

minimum recorded, 534 cfs Aug. 9 (gage height, 1.69 ft).

1929-51: Maximum discharge, 31,500 cfs May 23, 1948 (gage height, 13.07 ft); 

minimum, 86 ofs Jan. 8, 1930 (gage height, 0.52 ft. Ice jam above station); minimum 

dally, 224 cfs Jan. 8, 1930 (Ice Jam above station).

Remarks. Records excellent except those for periods of Ice effect or no gage-height 

record, which are fair. Diurnal fluctuation caused by powerplant at Bonner. Diversions for irrigation of about 120,000 acres above station.

Revisions (water years). W 1042: 1936. W 1152: 1942.

Hating tables, water year 1950-51, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 12 Feb. 13 to Sept. 30

2.4 

3.0 

4.0 

5.0

1,090

1,820

3,400

5,470

2.4 

3.0 

4.0 

5.0

1,190

1,920

3,510

5,500

6.0 

7.0 

8.0 

9.5

7,850

10,500

13,500

18,500

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ac- ft

Oct.

1,890 

1,890

1,960

1.790 

1,960

1,970 

2,000

1,970 

1,950

1,820

1,920

1,890 

1,890

1,890

1,900

1,890

1,960 

1,970

1,990

1,990

1,960

1,950

1,990

1,970

1,930

1,920

1,920

1,990

2,090

 2,190

2.240

60,640

1,956

120,300

Nov.

2,220 

2,240

2,220

2,190 

2,190

2,240 

2,260

2.340 

2,180

1,760

1,880

2,120 

2,040

1,960

2,310

1.720

2,030 

2,130

2,190

2,100

2,060

2,140

2,040

1,960

2,060

2,180

2,250

2,180

2,090

2,060

-

63,340

2,111

125,600

Dec.

2,030 

2,000

1,820

1,860 

1,700

bl.SOO 

1,620

2,090 

2,040

1,930

1,930

2,000 

 1,990

1,880

1,780

1,860

1,860 

1,830

1,790

1,810

1,810

1,790

1,860

2,020

2,190

2.320

2J220

2,120

2,070

2,030

2,030

59,780

1,928

118,600

Jan.

2.000 

1,890

1,890

1,880 

1,820

1,690 

1,380

bl,3OO 

bl.SOO

1,850

1,570

1,680 

 1,790

1,850

1,890

1,850

1,790 

1,760

1,660

bl,400

bl,500

bl,800

bl,600

bl,650

bl,750

1,900

al,600

al,200

aSOO

aSS5

al.OOO

50,090

1,616

99,350

Feb.

al.lOO 

al,200

al,350

al,450 

al,500

al,500 

al,600

bl,700 

b2,000

2,770

4,310

4.990 

4,060

a3, 300

a2,700

a2,500

a2,350 

a2,250

a2,150

 2,160

2,170

2,090

1,950

1,870

2,020

2,000

1,820

1,830

-

_

-

62,690

2,239

124,200

Mar.

1,830 

1,750

al,700

al,650 

al,600

al.200 

al,350

al,500 

al,650

al,700

al,700

al,650 

al,750

al,750

al,700

al,900

a2,000 

al,950

al,900

a2,050

a2,300

a2,700

a2,650

a2,400

a2,700

a3,000

a3.200

 2,990

2,640

2,630

2,770

64,260

2,073

127,500

Apr.

3.160 

3.B9U

4,350

4,930 

5,130

5,280 

5,210

5,240 

5,540

5,190

5,060

4,810 

4,830

5,500

5,810

5,650

5,610 

5,810

6,080

5,940

5,680

5,460

5,240

5,060

4,810

4,750

4,890

5,280

 6,120

7.380

157,490

5,250

312,400

Way

8,150 

7,800

7.500

77135

8,180

9,570 

11,700

13,000 

14,700

 14,900

15,700

17,600 

18.500

18,300

17,000

15,300

14,800 

15,200

15,700

15,500

15,100

15,000

15,600

17,100

17,700

16,600

15,300

15,000

15,200

14,000

12,800

436,000

14,060

864,800

June

11,800 

10,800

9,760

9,140 

9,360

10,000 

9,990

10,100 

9,790

9,410

9,650

10,400 

11,400

 12,100

13,000

14,400

14.700 

14,100

13,000

11,800

10,900

10,100

9,460

8,740

9,220

8,820

8,320

7,920

7,530

7.140

312,850

10,430

620,500

July

6,740 

6,810

6,860

6,830 

7,140

7.190 

6,810

6,330 

6,030

6,400

6,780

6,350 

5,830

5,540

5,210

5,150

 4,850 

4,590

4,350

4,170

4,020

3,800

3,510

3,470

3,350

3,280

3,160

3,190

3,340

3,060

2.990

157,130

5,069

311,700

Aig.

2.870 

27755

2,650

2,610 

2,660

2,630 

 2,480

2,290 

2,210

2,300

2,320

2,320 

2,340

2,300

2,240

2,160

2,090 

2,000

1,960-

1,880

1,830

1.740

T/TlS

1,860

1,960

1,980

1,910

1,950

1,950

2,060

2,230

6^,350

2,205

135,600

Sept.

2,190 

2,090

2,070

2,060 

2,020

2,000 

1,960

1,950 

1,930

1.860

1,890

2,030 

2,070

2,050

1,990

1,960

1,960 

 1,960

1,950

2,000

2,070

2,090

2,200

2,300

2,340

2.380

2,346

2,280

2,200

2,160

62,350

2,078

123,700

Calendar year 1950= Max 18,100 "In 600 Me8" 3,673 Ao-ft 2,660,000

Water year 1950-51: Max 18,500 "in 800 Mean 4,260 Ao-ft 3,084,000

* Discharge measurement made on this day.

a No gage-height record} discharge estimated on basis of temperature records and records for powerplant at Bonner as furnished by Montana Power Co. 

b Stage-discharge relation affected by Ice.
210 PEND OREILLE RIVER BASIN

Meat Pork Bitterroot River near Conner, Mont.

Location. Lat 45°44i, long. 114°17', In NE^NWi sec. 26, T. 1 S., R. 22 W., on right bank 

half a mile downstream from West Pork Dam, 6 miles upstream from Nez Pirce Creek, and 

16 miles southwest of Conner.

Drainage area. 322 sq ml.

Records available. April 1941 to September 1951.

Sage. Water-stage recorder.

Average discharge. 10 years, 299 cfs.

Extremes Maximum discharge during year, 2,020 cfs May 25 (gage height, 4.45 ft); minimum, 1.2 cfs Sept. 8-15 (gage height, 0.33 ft).

1941-51: Maximum discharge, 4,060 cfs May 9, 1947 (gage height, 6.18 ft); minimum, 

0.2 cfs Nov. 25, 1942.

Remarks. Records good except those for period of Sept. 8-15, which are poor. Plow regulated by West Fork Bitterroot River Reservoir (see p. 249). Diversions for irrigation of about 200 acres above station.

Rating table, water year 1950-51 (gage height. In feet,

and discharge. In cubic feet per second) 

(Shifting-control method used May 30 to June 14)

0.3 

.4

.7

1.0

1.5

3.0

6.0

11

155

286

2.5 

3.0 

3.5 

4.0 

4.5

502

765

1,090

1,510

1,980

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

170

214

*252,

252

252

252

252

252

249

249

249

249

249

245

245

245

245

242

242

238

238

238

235

235

232

232

228

228

225

225

225

7,384

238

14,650

Nov.

225

221

221

274

311

311

311

*311

311

311

311

307

307

307

303

303

299

248

124

66

88

90

90

90

90

90

90

90

90

90

-

6,280

209

12,460

Dec.

90

98

116

116

116

116

116

116

116

116

116

114

114

*114

114

114

111

111

96

51

57

57

68

86

88

88

88

88

88

88

88

3,061

98.7

6,070

Jan.

88

88

88

88

88

88

88

a86

aee

aBB

a8 8

a86

aee

aee

*86

86

86

86

86

84

84

84

84

84

84

84

84

84

a84

a84

a84

2,664

86.0

5,280

Feb.

a83

a83

a83

83

83

83

83

83

M

88

88

88

88

86

86

86

88

88

88

88

88

86

86

86

84

*84

84

84

.

_

-

2,396

85.6

4,750

Calendar year 1950: Max 1,820 Mln 23

Mar.

84

86

86

86

86

86

86

86

86

88

88

88

88

88

88

88

88

90

90

90

90

90

90

90

88

88

88

88

88

88

*88

2,722

87.8

5,400

Apr.

eg

88

88

90

90

92

92

198

331

359

359

359

363

367

367

367

371

376

380

380

380

384

384

384

384

»380

380

427

a493

a496

-

9,297

18,440

May

a498

a,501

a503

a506

a508

512

516

526

536

1,300

,710

.980

,840

,540

,290

,260

* ,220

,390

,520

,540

,500

,540

,710

,980

,970

,780

,690

,800

,740

,560

,380

39,846

1,285

79,030

June

1,180

1,030

929

864

864

864

851

838

813

807

832

*896

942

994

1,080

1.220

1,220

1,140

1,050

968

896

832

771

738

721

666

611

580

550

516

26,263

875

52 ,090

Jul-r

497

502

469

460

455

419

388

376

351

338

334

315

299

284

270

259 *245

232

225

211

202

192

188

182

176

173

167

164

158

152

145

8,828

285

17,510

Aug.

139

134

134

139

150

145

137

129

122

118

122

129

118

111

105

101

99

96

90

88

86

92

*118

122

114

101

96

96

96

98

96

3,521

114

6,980

Sept.

92

88

86

84

234

430

206

T72~ 1 .2

1.2

1.2

1.2

1.2

1.2

4.8

33

53

62

67

68

68

68

68

121

204

249

249

245

277

359

-

3,424.2

114

6,790

Mean 291 Ae-ft 210,500

water year 1950-51: Max 1,980 Min 1.2 Mean 317 Ae-ft 229,400

* Discharge measurement made on this day. 

a No gage-height record; discharge interpolated or estimated on basis of recorded range in stage 

and on basis of records for Bitterroot River near Darby.
FEND OREILLE RIVER BASIN 211

East Pork Bitterroot River at Conner, Mont.

Location. Lat 45°56'00", long. 114°07'30", in SE^SE^ sec. 7, T. 2 H., R. 20 V'., on left 

bank 125 ft downstream from highway bridge at Conner and half a mile upstream from 

confluence with West Fork.

Drainage area. 405 sq mi (revised).

Records available. September 1910 to September 1916 (1916, gage heights only) published 

as "near Darby", April 1937 to September 1951.

Gage. Wire-weight gage read twice daily. Sept. 20, 1910, to Sept. 17, 1916, staff gage 

at site 2f miles upstream at different datum. Apr. 4, 1937, to Aug. 14, 1941, wireweight gage on highway bridge 125 ft upstream at present datum.

Average discharge. 14 years (1937-51), 253 cfs.

Extremes. Maximum discharge during year, 2,530 cfs May 24 (gage height, 4.65 ft from 

'graph based on gage readings); minimum observed, 28 cfs Jan. 28 (gage height, 1.03 

ft).

1910-15, 1937-51: Maximum discharge, 3,760 cfs May 29, 1948; maximum gage height, 

5.78 ft May 9, 1947; minimum discharge observed, 1.4 cfs Aug. 17, 1937.

Remarks. Records poor. Diversions for irrigation of about 3,000 acres above station.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

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.

Ac-ft

Oct.

108

105

*TCB"

110

118

120

115

105

112

112

112

110

110

105

110

112 

110

115

120

110

118

T50" 126

118

115

120

115

120

120

123

120

3,539

114

0.281

0.32

7,020

Nov.

120

129

129

123

120

126

132

 123

102

blOO

b!30

129

123

132

123

129 

135

T35

123

105

115

120

120

110

115

115

115

105

95

tf55

-

3,578

119

0.294

0.33

7,100

Dec.

95

90

90

no

T5

80

105

90

80

77

77

77

80

*77

86

84

77

80

86

86

84

75

31

91

88

84

84

88

87

87

86

2,652

85.5

0.211

0.24

5,260

Jan.

b85

b85

b90

b80

b75

52

36

b60

b85

b90

b90

b90

93

105

*112

102 

98

93

75

b70

b65

69

71

b72

73

b70

48

39

b35

b5l5

b70

2,328

75.1

0.185

0.21

4,620

Feb.

b95

blOO

blOO

bllO

bllO

bllO

bllO

b!20

b!30

210

248 '235"

135

147

132

129 

120

b!20

bl!5

bllO

108

b!09

110

115

bllO

*b!02

b95

93

_

_

-

3,525

126

0.311

0.32

6,990

Mar.

b95

98

b92

b90

88

86

bas- b85

b85

88

b90

b90

b90

b90

b92

95 

95

95

b98

blOO

105

110

105

108

118

141

T56~ 144

132

138

*132

3,186

103

0.254

0.29

6,320

Apr.

135

154

185

220

274

300

340

375 350"

315

305

320

395

449

427

380

416

498

515

482

410

449

405

345

350

*375

390

482

564

555

-

11,164

372

0.919

1.03

22,140

May

570

537

476

*S5

570

672

944

1,400

*1,540

1,660

1,770

2,030

1,660

1,310

1,120

1,060 

1,150

1,250

1,420

1,420

1,460

1,470

1,730

2.250

2, ISO

2,000

2,040

2,230

1,960

1,680

1,560

43,562

1,405

3.47

4.00

86,400

June

1,340

1/140

1,000

940

1,000

1,010

1,000

954

904

975

968

*1,020

1,100

1,240

1,340

1.500 

1,460

1,340

1,180, i.iaq

1,040

961

880

904

862

776

745

705

650

615

-

30,729

1,024

2.53

2.82

60,950

July

600

350" 660

625

580

535

502

479

452

515

484

452

389

376

384

364 

*352

348

320

293

282

296

293

282

279

268

265

258

248

234

227

12,222

394

0.973

1.12

24,240

Aug.

5i± TR57

204

197

191

185

179

170

162

159

154

154

145

138

140

132 

128

125

125

118

113

113

*120

118

113

109 109"

115

113

113

113

4,476

144

0.356

0.41

8,880

Sept.

113

TIT

111

111

109

107

107

105

105

103

101

101

101

101

103

101 

99

35

99

105

103

103

99

101

105

105

101

99

101

101

-

3,110

104

0.257

0.29

6,170

Calendar year 1950: Max ' 2,280 Mln 58 Mean 327 Cfsm 0.807 In. 10.97 Ac-ft 236,800

Water year 1950-51: Max 2,250 Mln 35 Mean 340 Cfsm 0.840 In. 11-38 Ac-ft 246,100

Peak discharge (base. 700 cte). May 12 (11 a.m.) 2,170 cfs (4.43 ft)} May 24 (2 p.m.) 2,530 cfs 

(4.65 ft); Hay 28 (11 a.m.; 2,490 cfs (4.61 ft)} June 16 (12 m.) 1,660 ofs (3.72 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. Stage-discharge relation Indefinite Nov. 20 to Dec. 9; discharge estimated on basis of 

records for Bitterroot River near Darby.
212 FEND OREILLE RIVER BASIN

Bitterroot River near Darby, Mont.

Location. Lat 45°58i20", long. 114°08i20", in Ei (revised) sec. 36, T. 3 N., R. 21 W., 

on left bank 25 ft downstream from bridge on U. S. Highway 93, a quarter of a mile 

downstream from Chaffin Creek, and 4 miles southeast of Darby.

Drainage area. 1.050 sq ml, approximately. 

Records available. April 1937 to September 1951.

Gage. Water-stage recorder. Datum of gage is 3,943.14 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947. Prior to Aug. 2, 1939, wire-weight gage 

at highway bridge 25 ft upstream at same datum.

Average discharge. 14 years, 877 cfs.

Extremes.--Maximum discharge during year, 7,080 cfs May 24 (gage height, 6.47 ft); minimum. 138 cfs Jan. 29 (gage height, 1.39 ft).

1937-51: Maximum discharge, 11,500 cfs May 9, 1947 (gage height, 8.18 ft); minimum observed, about 71 cfs Feb. 9, 1939; minimum gage height observed, 1.06 ft-Dec. 

9, 1937.

Remarks. Records excellent except those for periods of ice effect or no gage height 

record, which are poor. Some regulation by West Pork Bitterroot River Reservoir (see 

p. 249). Diversions for irrigation of about 5,000 acres above station. Ditch bypassIng station Irrigates about 500 acres below.

Rating tables, water year 1950-51, except periods of ice effect (gage height, in 

feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 18 Apr. 19 to Sept. 30

1.5 

1.7 

2.0 

2.4

165

230

365

605

2.8 

3.2 

3.8

940

1,340

2,020

1.7 

2.0 

2.5 

3.0 

3.5

190

320

640

1,080

1,620

4.0 

4.5 

5.5 

6.3

2,300

3,070

4,950

6,690

Discharge, In cubic feet per second, water year October 1950 to Septemtnr 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

382

398

*464 

481

542

584

542

529

577

563

620

665

658

620

620

650

612

642

658

605

591

650

620

591 

570

570

563

570

584 

598

591

17,910

578

35,520

Nov.

570

570

556 

591

688

£96

696

 696

584

556

665

635

584

605

549

577

577

584

431

320

355

360

365

355 

387

398

392

387

350 

382

-

15,461

515

30,670

Dec.

370

335

340 

404

320

320

398

376

360

350

350

360

355 *325

355

355

340

330

340

310

288

270

320

365 

382

382

345

360

, 355 

1 345

330

10,735

346

21,290

Jan.

310

310

320 

306

297

250

220

262

288

284

297

306

310

310

*306

297

292

284

270

262

284

288

284

288 

288

288

242

177

.b!60 

b!90

b240

8,510

275

16,880

Feb.

288

306

306

315

315

315

306

335

387

529

688

712

570

511

481

453

442

420

409

392

392

355

340

355 

330

*302

288-

-

11,126

397

22,070

Mar.

288

279

279 

288

288

274

284

270

279

262

266

270

274

270

284

292

270

350

270

270

288

306

292

302 

335

392

i!i

376

382 

404

*392

9,390

303

18,620

Apr.

i!i

470

591 

768

959

1,100

1,250

1,330

1,480

1,470

1,360

1,370

1,570

1,900

1,850

1,780

1,840

2,010

2,020

1,820

1,620

1,480

1,390

1,320 

1,320

 1,440

al,500

al,750

a2.050 

a2,050

-

43,272

1,442

85,830

May

a2 , 100

a2,000

al.900 

al,950

a2,150

a2,400

a2,700

a3 , 500

3,850

4,590

5,560

6,180

5,460

4,570

3,880

3,620

 3,900

4,470

4,750

4,690

4,610

4,930

5,670

6.670 

6,140

5,430

5,350

6,530

5,560 

4,830

4,260

134,200

4,329

266,200

June

3,660

3,170

2,860 

2,700

2,830

2,910

2,810

2,720

2,620

2,690

2,960

 3,220

3,460

3,900

4,510

4.990

4,570

4,170

3,700

3,550

3,240

2,990

2,750

2,910 

2,750

2,520

2,450

2,360

2,190 

2.080

-

94,240

3,141

186,900

July

2,010

2.170

,0~0 

,170

,0~>Q

,910

,7?0

,630

,5*0

,6-*0

,5*0

,3^0

,310

,310

,3*0

,2-50

 ,180

,120

,070 9->0

899

818

776

7S8 

776

748

704

696

6Q4 

626

§98

39,663

1,279

78,670

Aug.

577

563

549 

556

570

535

514

486

472

451

444

451

430

418

400

388

376

360

350

340

335

335

 406

424 

394

365

355

355

360 

365

360

13,284

429

26,350

Sept.

345

335

330 

325

350

570

J91

266

238

222

218

218

214

210

206

206

222

238

246

262

270

266

270

280 

345

430

430

424

418 

514

-

9,459

315

18,760

Calendar year 1950: Max 6,640 Mln 190 Mean 1,059 Ac-ft 766,300

Water year 1950-51: Max 6,670 Mln 160 Mean 1,116 Ac-ft 807,800

Peak discharge (base. 2.500 cfs). May 12 (9;3O a.m.) 6.460 cfs (6.2O ft): May ?4 (9:30 a.m.l 

7,080 cfs (6.47 ft); May 28 (10 a.m.) 7,010 cfs (6.44 ft); June 16 (5:30 a.m.) 5,170 cfs (5.71 ft),

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations or East Fork and 

West Fork Bitterroot River.

b Stage-discharge relation affected by Ice.
PEND OREILLE RIVER BASIN 213

Rook Creek near Darby, Mont.

Location. Lat 46°04'10", long. 114°13'20", in SE^SE^ sec. 29, T. 4 N., R. 21 W., on 

left bank 0.6 mile downstream from Como Lake, 5.7 mile upstream from Rock Creek Canal, 

and 4 miles northwest of Darby.

Drainage area. 56.5 sq mi.

Records available.--April 1946 to September 1948 (fragmentary), December'1948 to September 1951.Records for earlier years collected by Bitterroot Irrigation District.

Gage. Water-stage recorder, 

different datum.

Prior to Dec. 2, 1948, staff gage 0.6 mile downstream at

Extremes. Maximum discharge during year, 764 cfs June 18 (gage height, 4.09 ft); minimum, 3.0 cfs Oct. 15 to Nov. 11 (gage height, 1.05 ft).

1948, 1948-50: Maximum discharge, 1,580 cfs June 17, 1950 (gage height, 5.19 ft), 

from rating curve extended above 380 cfs, but may have been higher in May 1947: no 

flow Apr. 6, 18, 19, May 27-30, 1946.

Remarks. Records fair except those for periods of no gage-height record and those below 

10 cfs, which are poor. Plow regulated to limit of capacity of Como Lake (see p. 249). 

Small diversion above station for irrigation. Greater part of flow diverted by Rock 

Creek Canal, 0.7 mile below station.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 15 to Sept. 30

2.0 

2.2 

2.5

111

163

1.0 

1.2 

1.4 

1.7 

2.0

2.0 

6.0 

11.5

2.3 

2.7 

3.0 

3.5 

4.1

89

166

245

435

770

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

AB-ft

Oct.

m150

 150

149

147

145

143

142

116

98

94

92

92 

40

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0 

3.O

3.0

3.0

3.0

3.0

3.0

3.0

1,912.0

61.7

3,790

Nov.

3^0 

3.0

3.0

3.0

3.0

3.0 

3.O

3.0

 3.0

3.O

3.0

3.2

3.4

3.4

3.4

3.6

3.6

3.8

4.0

4.0

4.2

4.2

4.4

4.4 

4.4

4.4

4.4

4.4

4^1

4.6

-

109.4

3.65

217

Dec.

*-i8

5.0

5.0

5.0

5.2

5.2 

5.2

5.4

5.4

5.6

5.6

5.6

5.6

5.6 

 5.6

5.6

5.8

5.8

6.O

6.0

6.2

46

94 m

110

110

110

110

110

110

1,135.2

36.6

2,250

Jan.

no- HO

109

109

109

109 

109

109

109

107

107

107

107

107 

1O7

107

107

107

1O7

107

107

107

107

107 

107

1O7

1O7

107

107

107

107

3,337

1O8

6,620

Feb.

 107 

107

107

1O7

107

1O7

107

107

107

107

107

107

107

107 

107

107

107

107

107

107

107

107

107

107 

107

 1O7

1O7

1O7

_

_

-

2,996

107

5,940

Mar.

107 

155

105

105

105

103 

103

103

103

103

102

102

102

102 

102

100

100

100

99

99

99

99

99

99 

99

97

97

97

 97

95

ii

3,122

101

6,190

Apr.

91 

91

91

89

88

86 

86

84

82

80

46

28

27

27 

27

27

27

26

25

a25

a25

a25

a25

a25 

a25

a25

a25

a25

a25

a50

-

1,428

47.6

2,830

May

*«

168

205

236

263 

275

278

 282

286

289

292

296

3OO 

300

300

303

303

303

306

310

314

318

322 

326

330

338

426

542

530

480

9,462

305

18,770

June

430 

386

358

350

346

346 

346

346

330

300

245

2£6

 239

242 

248

46O

686

73J,

650

544

448

458

369

310 

354

390

426

444

44O

430

11,891

396

23,590

July

426 

453

462

495

510

520 

495

462

444

435

394

318

254

m

310

330

"326

318

303

296

303

306

314 

314

314

318

330

334

334

358

11,302

365

22,420

Aug.

546 

180

180

176

175

183

192

190

212

215

258

257

210

205 

205

208

215

227

215

215

 212

262

3O3

338 

338

342

342

334

330

330

326

7,719

249

15,310

Sept.

322 

3T*

292

269

269

266 

263

26O

263

260

254

257

263

263 

260

260

257

257

257

254

254

251

199

ISO

173

155

142

146

148

142

7, ISO

238

14,160

Calendar year 1950: Max 1,340 Mln O.8 Mean 166 Ac -ft 120, 5OO

Water year 195O-51: Max 734 Mln 3.O Mean 169 Ao-ft 122, 1OO

Discharge measurement made on this day. 

a No gage-height record; discharge estimated.
214 FEND OREILLE RIVER BASIN

Rock Creek Canal near Darby, Mont.

Location. Lat 46°04'40", long. 114°12'40", In SE^NW£ (revised) sec. 28, T. 4 N., R. 21 

W., on downstream side of footbridge a quarter of a mile downstream from diversion 

dam, ! £ miles downstream from Como Lake, and 4 miles northwest of Darby.

Records available.--April to September 1946, May 1948 to September 1951 (irrigation 

seasons only).

Gage. Water-stage recorder. Apr. 8 to May 13, 1946, staff gage a quarter of a mile upstream at different datum, May 14, 1946, to May 27, 1950, staff gage at present site 

approximately at present datum, and May 28, 1950, to Sept. 30, 1950, staff gage 80 ft 

downstream at present datum.

Extremes. 1946. 1948-51: Maximum daily discharge, 349 cfs July 27, 1949; no flow except 

during irrigation seasons.

Remarks. Records excellent. Canal diverts from Rock Creek for irrigation of land in 

vicinity of Hamilton. During irrigation seasons water may be diverted from Lost 

Horse Creek into canal below station near southwest corner of sec. 22.

Rating table, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

0.9

1.0

1.1

1.2

1.3

1.1 

2.5

5.0

1.5 

1.7 

1.9 

2.2 

2.5

3.0 

3.5 

4.0 

5.0

109

156

211

334

Discharge, In cubic feet per second, water year October 1950 to Septembe- 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ae-ft

Oct.

-

-

till

-

-

-

-

-

-

-

t87

-

-

-

-

-

*

-

-

-

-

-

-

:- *-

---

Nov. Dec. Jan. Feb. Mar. Apr.

0

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

o

0

o

0

0

0

0

*i. i

2.3

3.8

5.3 

20

15

SS.

79.5

26.5

158

May

 66.

104

145

188

225

242

252

252

 251

248

248

248

249

248

251

 249

251

251

251

251

249

251

252

254

2^5

254

254 

254

248

246

245

7,232

233

14,340

June

245

245

243

241

242

243

225

192

190

190

186

187

 189

189

190

197

198

200

206

213

217

183

21

39

220

239

234 

239

233

251

6,087

203

12,070

July

252

254

253

254

253

253

252

251

240

24^

239

237

Aug.

330

174

172

168

168

175

188

186

203

203

241

241

201

2Tr 192

25' 195

26' 198

265 205

 265 211

279 205

291 205

28 ? *204

293 248

3C2 293

3C4 326

3C4 330

3C5 331

309 331 

325 328

328 325

328 328

331 322

8,499 7,427

274 240

16,860 14,730

Sept.

320

313

288

267

266

253

252

252

259

258

248

255

257

257

257

257

253

254

254

251

249

247

196

178

173

151

m146

141

-

7,030

234

13,940

Calendar year : Max . Mln . Mean . Ac -ft .

The period : Max - Mln . Mean . Ao-ft 72,100

* Discharge measurement made on this day. 

t Result of discharge measurement.
PEND OREILLE RIVER BASIN 215

Skalkaho Creek near Hamilton, Mont.

Location. Lat 46°09'50", long. 113°56'20", in SJffcNWi sec. 26, T. 5 N., R. 19 V. , on right 

bank 2 miles downstream from Daly Creek and 12 miles southeast of Hamilton.

Drainage area. 87.8 sq mi.

Records available. --April 1920 to September 1924, December 1948 to September If 51.

Gage. --Water -stage recorder. Apr. 20, 1920, to Sept. 30, 1924, staff gage at site 3 miles 

downstream at different datum.

Extremes . Maximum discharge during year, 665 cfs May 28 (gage height, 4.11 ft); maximum 

recorded gage height, 4.95 ft Feb. 1 (backwater from ice); minimum recorded discharge, 

17 cfs Feb. 27 (gage height, 1.36 ft).

1920-24, 1948-51: Maximum discharge observed, 1,110 cfs June 15 (corrected), 1922 

(gage height, 3.80 ft, site and datum then in use); minimum recorded, 12 cfs Mar. 11, 

1950 (gage height, 1.27 ft).

Flood of May 1948 reached a discharge of 1,130 cfs (by slope-area method et a point 

5 miles downstream) .

Remarks . Records fair except those for periods of ice effect or no gage-height record, 

which are poor. During irrigation season flow is supplemented by releases from Kent 

Lake and Dam Creek Lake (combined capacity, 200 acre-ft).

Rating tables, water year 195O-51, except periods of Ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

1.8

2.0

2.1

1.5 

1.7 

2.0

Oct. 30 to Sept. 3O

2.5 115

3.0 224

4.0 610

Discharge, In cubic feet per second, water year October 195O to September 1951

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.

Ac-ft

Oct.

42. *42

42 

45 

52

54

46

46

47

44

46

46

44

42

45

43

44

47

45

42

43

46

44

42

42

42

44

47

£2 

62 

55

1,433

46.2

0.526

0.61

2,840

Nov.

49

48 

49 

50

49

*49

45

4O

b38_

b39

b40

b40

b40

42

42

41

42

41

b41

41

41

40

41

42

41

41

40

39 

40

1,281

42.7

0.486

0.54

2,540

Dec.

39 

36

#36

b34

b36

b37

36

36

36

36

35

35

*35

34

34

34

34

34

34

34

36

36

36

33

35

34

34 

34 

32

1,094

35.3

0.402

0.46

2,170

Jan.

32

34 

32

b3O

b28

b29

b29

b30

b31

b31

b31

b31

»b32

32

32

31

30

29

33

31

29

32

31

31

26

b24

b21 

b20 

b22

921

29.7

0.338

0.39

1,830

Feb.

b26 

28

30 

30 

29

28

28

30

32

34

33

33

32

31

30

29

29

28

27

27

26

*b26

b26

26

26

b26

b26

810

28.9

0.329

0.34

1,610'

Mar.

26 

26

26 

26 

26

b26

26

b26

26

26

27

26

26

25

26

26

Si

24

24

24

25

26

24

25

26

27

26

26

*26 

27 

28

798

25.7

0.293

0.34

1,580

Apr.

if36 

41 

48

53

59

60

58

53

51

54

67

80

80

81

87

97

103

97

92

86

83

81

82

88

99

*119

w

2,270

75.7

0.862

0.96

4,500

May

131 

119

115 

124 

149

211

275

326

*330

355

419

451

403

348

323

326

375

427

431

435

443

475

547

588

552

529

556

601

498

471

11,871

383

4.36

5.03

23,550

June

435 

391

359 

351 

367

355

341

519

3l9

341

375

407

*431

475

534

578

542

511

480

471

463

451

435

447

439

427

423

407

383 

363

12,620

421

4.79

5.34

25,030

July

367 

399

375

m

355

333

302

285

305

263

244

233

230

224

*214

203

191

180

171

162

153

147

141

137

133

128

122

119 

114 

109

7,137

230

2.62

3.02

14,160

Aig.

109 

106

102 

102 

99

95

92

91

87

86

85

83

81

79

75

73

72

71

69

68

*68

68

77

72

68

66

65

66

66 

69

2,474

79.8

0.909

1.05

4,910

Sept.

If

60 

58 

57

56

54

55

54

53

53

53

51

50

49

49

48

50

49

49

49

49

51

49

49

53

49

46

46

45

1,557

51.9

0.591

0.66

3,090

Calendar year 1950: Max 757 Mln 15 Mean 108 Cfsm 1.23 In. 16.73 Ac-f; 78,380

Water year 1950-51: Max 601 Mln 20 Mean 121 Cfsm 1.38 In. 18.74 Ac-ft 87,810

Peak discharge (base. 400 of a). May 12 (12:30 a.m.) 463 cfs (3.67 ft); May 28 (3 a.m.) 665 cfs 

(4.11 ft)j June 16 (1 a.m.) 630 cfs (4.04 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note. No gage-height record Feb. 2-22; discharge estimated on basis of temperature records.

288995 O - 54 - 15
216 FEND OREILLE RIVER BASIN

Blodgett Creek near Corvallis, Mont.

Location.--Lat 46°16'10", long. 114°14'10" (revised)., in NWijNWi sec. 21, T. 6 N., R. 21

 W., on right bank 4f miles upstream from mouth and 7 miles southwest of Corvallis.

Drainage area. 26.4 sq mi (revised).

Records available. December 1946 to September 1951.

Gage.--Water-stage recorder.

Extremes. Maximum discharge during year, 518 cfs June 16 (gage height, 5.11 ft); mini-

 mum, 6.8 cfs Sept. 25 (gage height, 2.19 ft).

1946-51: Maximum discharge, 836 cfs May 16, 1949 (gage height, 6.42 ft); minimum, 

1.6 cfs Feb. 19, 1949 (gage height, 1.96 ft).

Remarks. Records excellent except those for periods of ice effect or no gage-height,

 record, which are poor. F}ow slightly regulated at low stages by sto-age for irrigation in High Lake and Blodgett Lake (combined capacity, 900 acre-ft).

Rating tables, water year 1950-51, except periods of lee effect (gage 

height. In feet, and discharge. In cubic feet per second)

Oct. 1-29

2.3 9.5 

2.5 19 

2.7 32 

3.0 62 

3.3 106

Note. Same 

as following

2.2 

2.4 

2.6 

2.8 

3.0

Oct. 30 to Sept. 30

7.0

16

3.3 

3.5 

4.0 

4.5 

5.0

106

142

246

365

490

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29 

30

Tbta:

Mean

Cfsm

In.

Ac-ft

Oct.

tt

10 

*14

48

55

34

41

66

52

94

77

69

56

56

54

56

99

90

70

68

79

69

60 

52

52

51

58

198 

213

T52

2,114

68.2

2.58

2.97

4,190

Nov.

117 

98

91 

100

128

106

96

84

*72

b68

65

59

53

51

46

44

41

42

38

38

37

35

33

34 

43

50

51

50

49 

48

1,867

62.2

2.36

2.63

3,700

Dec.

ft

41 

39

31

b35

36

33

32

32

33

34

33

32

32

 30

30

29

28

28

28

28

30

36 

43

43

39

37

35 

34

33

1,060

34.2

1.30

1.50

2,100

Jan.

31 30"

29

30

28

27

23

b24

26

25

25

24

23

22

21

*20

20

20

20

20

18

18

18

18 

18

18

16

b!5

b!3 

blO

bll

661

21.3

0.807

0.93

1,310

Feb.

b!5 

b!8

b!9 

b!9

20

18

17

20

24

46

60

IS

38

35

33

30

29

28

26

25

25

23 22

22 

21

20

20

20

-

-

738

26.4

1.00

1.04

1,460

Mar.

18 

18

18 

18

17

b!6

b!5

b!4

b!4

b!4

b!4

14

14

14

14

16

15

14

14

14

15

16

15

16 

16

18

18

18

18 *ie

18

491

15.8

0.598

0.69

974

Apr.

22" 18 

29 

40

52

69

87

97

92

83

76

81

112

150

128

122

133

152

144

117

97

85

77

77 

83

106

133

*170

ftt

-

3,017

101

3.83

4.27

5,980

May

140 

119 m152

235

297

304

283

316

355

350

255

202 ife

 178

224

276

262

258

264

304

398

352"

292

309

360

262

217

184

7,997

258

9.77

11.26

15,860

June

160 

137

126 

129

168

172

164

154

154

190

246

278

*271

328

402

420

330

302

258

258

235

217

213

269 

235

220

235

220

188 

180

-

6,859

229

8.67

9.67

13,600

July

202 

246

220 

258 zir

203

190

170

154

190

144

135

153

173

172

156

 150

138

128

106

88

77

71

73 

78

73

66

65

63 

55

*i

4,257

137

5.19

5.98

S, 440

Aug.

ft

40 

38

34

30

28

26

24

23

22

20

19

18

16

a!5

a!4

a!3

a!2

a!2

a!7

*24

24

14 

11

9.8

L.O

9.8

10 

24

25

668.6

21.6

0.818

0.94

1,330

Sept.

26 

27

26 

25

24

23

23

25

26

23

26

25

23

21

20

20

18

19

18

14

12

9.4

9.0

B

28

16

14

12 

11

-

580.7

19.4

0.735

O.S2

1,150

Calendar year 1950 : Max 636 Mln 5.5 Mean 88.9 Cfsm 3.37 In. 45.72 Ac-ft 64,330

Water year 1950-51 : Max 452 Mln 7.8 Mean 83.0 Cfsm 3.14 In. 42.70 Ac-ft 60,090

Peak discharge (base. 450 efs). May 24 (6 to 8 a.m.) 492 cfs (5.01 ft); June 16 (3:30 a.m.) 518 

cfs f5.ll ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams.

b Stage-discharge relation affected by Ice.
PEND OREILtE RIVER BASIN 

Fred Burr Creek near Victor, Mont.

217

Location. Lat 46°21 I 20", long. 114°15'10", In NE^NWi sec. 20, T. 7 N. , R. 21 V'., on 

right bank 5 miles upstream from mouth and 7 miles southwest of Victor.

Drainage area. 18.6 sq ml.

Records available.--December 1946 to September 1951 (discontinued).

Gage. Water-stage recorder. Prior to Apr. 4, 1948, water-stage recorder at Seme site 

at datum 1.74 ft higher. July 30 to Sept. 30, 1948, staff gage at same site at 

datum 0.22 ft lower.

Extremes. --Maximum discharge during year., 424 cfs June 16 (gage height, 4.58 ft); minimum dally, 5 cfs Jan. 30, 31.

1946-51: Maximum discharge, 23,100 cfs May 28, 1948 (failure of dam above station) by slope-area determination of peak flow at site 3 miles upstream fron station; 

minimum observed, 2.7 cfs Sept. 20-22, 1948.

Remarks. Records fair. Flow slightly regulated by Fred Burr Lake (capacity, 200 acre- 

 ft), and prior to May 28, 1948, by Fred Burr Reservoir (capacity, 515 acre-ft).

Rating tables, water year 1950-51, except periods of loe effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Apr. 4 Apr. 5 to Sept. 30

2.5

2.6 

2.8 

3.0 

3.3 

3.7

10

19

34

64

123

2.4

2.5

2.6

2.7

2.8

6.0 

9.0

3.0 

3.2 

3.5 

4.0 

4.3

47

75

133

253

340

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Ac-ft

Oct.

8.8

8.8

8.8

9.8

22

»30

. 22

25

34

30

48

46

40

32

32

27

26

43

40

32

35

38

38

34 

29

28

28

30

89

~75~

1,099.2

35.5

2,180

Nov.

51

42

43

55

60

53

47

43

 41

40

32

28

26

25

23

22

21

20

22

21

18

18

17

18 

26

32

32

32

24

9.1

941.1

31.4

1,870

Dec.

11

37

41

27

23

b22

20

18

18

18

18

20

20

19

 18

17

16

16

15

15

15

15

18

23

31

29

26

24

22

21

19

652

21.0

1,290

Calendar year 1950: Max 560

Jan.

18

18

16

16

16

b!5

bl4

b!5

b!6

b!5

b!4

13

12

12

12

12

12

11

11

10

10

10

10

10 

10

10

b9

b8

b6

bB~

371

12.0

736

Feb.

t»6

a9

all

a!2

a!2

alO

alO

bll tie

b28

32

26

22

20

18

18

17

16

15

14

14

13

13

13 

*12

b!2

b!2

b!2

-

-

424

15.1

841

Mar.

til

til

bll

bll

blO

blO

blO

blO

b9

b9

b9

b8.5

b8.5

8.5

8.5

8.5

8.5

7^9

7.9

8.2

8.5

8.8

8.5

8.8 

9.4

10

10

10

10

10

290.0

9.35

575

Apr.

12

13

19

29

43

59

68

70

64

55

50

54

72

97

80

72

79

93

88

69

57

51

46

47 

55

70

86

*111

m1,961

65.4

3,890

Mln 6.6 Mean 57.5

May

89

72

64

64

84

123

148

202

240

 216

229

224

206

173

140

131

146

164

170

175

175

182

226

if

190

204

253

199 

182

166

5,366

173

10,640

June

153

135

119

107

105

109

107

105

105

105

107

128

*191

240

314

326

250

218

184

184

162

151

144

170 

166

144

159

153

127 

119

-

4,787

160

9,490

July

119

153

146

175

153

144

137

131

109

107

105

89

89

113

127

111

103

*99

93

82

68

56

51

48 

54

55

47

41

40 

35

30

2,910

93.9

5,770

Aug.

28

27

26

24

22

20

18

17

16

14

14

13

12

11

11

10

IT

16

16

15

14

*16

16

16 

16

16

15

16

16 

15

14

511

16.5

1,010

Sept.

14

14

14

13

13

12

12

12

12

11

11

11

11

10

10

9.8

9.4

9.4

9.0

8.7

8.7

8.4

8.1

7.2

14

16

11

8.7 

8.4

-

323.7

10.8

642

Ac-ft 41,610

Water year 1950-51: Max 326 Mln 5 Mean 53.8 Ac-ft 38,930

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of temperature records and records for Bear 

Creek near Victor.

b Stage-discharge relation affected by Ice.
218 FEND OREILLE RIVER BASIN

Bear Creek near Victor, Mont.

Location.--Lat 46°23', long. 114°13', In NE^ sec. 9, T. 7 N., R. 21 W., on left bank 

4 miles upstream from mouth and 5 miles southwest of Victor.

Drainage area. 26.8 sq ml (revised).

Records available. April 1938 to September 1951.

Gage. Water-stage recorder and timber control. Prior to Aug. 27, 1941, staff gage at 

same site and datum.

Average discharge. 13 years, 65.2 cfs.

Extremes. Maximum discharge during year, 654 cfs June 15 (gage height, 2.99 ft); minimum, 6.5 cfs Sept. 20 (gage height, 0.01 ft).

1938-51: Maximum discharge, 1,340 cfs June 16, 1950 (gage height, 4.04 ft), from 

rating curve extended above 530 cfs; minimum recorded, 1.0 cfs Sept. 13, Nov. 15, 

1944.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Revisions (water years). W 982: 1942.

Rating table, water year 195O-S1, except periods of ice effect (g>s«e 

height, in feet, and discharge, In cubic feet per second)

1.0 

1.5 

2.0 

2.5 

2.7

145

242

410

500

Discharge, in cubic feet per second, water year October 195O to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

It

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

12 

13

13

20

*60

60

43

48

64

54

79

77

69

57

62

54

56

87

83

66

80

81

85

72

63

61

59

62

2O2 2"oT

 140

2,183

70.4

2.63

3.03

4,330

Nov.

108 

92

87

112

123

102

92

81

b70

b65

b62

56

54

50

b45

43

42

41

b37

b37

36

34

33

3T

46

53

53

52

50

48

-

1,838

61.3

2.29

2.56

3,650

Dec.

45 

42

42

4O

b35

b36

b36

b32

31

31

32

35

33

32

31

»29

29

29

29

29

29

28

42

54

63

59

54

50

46

43

40

1,186

38.3

1.43

1.65

2,350

Jan.

37 

36

34

32

30

b29

b25

b26

b27

b25

b24

b23

b22

b21

b20

*b20

aj9

al9

b!9

b!9

bl8

18

b!7

16

16

b!6

b!5

b!3

bll

blO

bll

668

21.5

0.802

0.92

1,320

Feb.

b!3 b!6~

b!7

bl8

b!8

14

14

18

20

54

65

52

41

40

34

31

29

27

26

25

23

22

b21

b21

*2O

b20

b!9

b!9

_

_

-

737

26.3

0.981

1.O2

1,460

Mar.

bl8 

bl8

bl8

18

b!7

b!6

b!6

b!5

b!5

b!4

14

14

14

13

14

15

14

14

13

13

14

14

13

13

14

16

16

16

16

*17

17

469

15.1

0.563

0.65

930

Apr.

if26

36

54

73

87

94

89

78

74

78

106

133

117

115

127

142

134

110

94

82

75

75

87

113

*133

162

203

159

-

2,894

96.5

3.6O

4.02

5,740

May

127 

108

98

108

150

253

304

3O7

287

*342

398

364

245

19O

164

169

224

268

240

237

245

330

469

444

314

274

316

372

247

209

171

7,974

257

9.59

11 .06

15,820

June

140 

124

115

12?

154

150

144

138

14O

184

236

271

311

*385

491

458

372

314

265

268

242

230

229

294

258

23O

235

211

190

190

7,091

236

8.81

9.83

14, 06O

July

204 

248

229

274

222

203

197

167

148

203

148

140

159

175

168

154

144

*136

124

105

87

76

72

72

83

74

63

59

57

52

ii

4,289

138

5.15

5.94

8,510

Aug.

42 40"

36

34

3O

28

26

24

22

22

22

20

18

16

15

14

13

13

12

11

11

*11

12

13

12

1O9_.9_

10

10

10

9.9

576.8

18.6

0.694

0.80

1,140

Sept.

9.3 

9.0

9.6

9.0

8.4

8.1

7.5

7.8

8.7

7.8

11

10

9.3

8.7

8.1

7.8

7.3

7.3

7.0

6.8

7.5

7.5

8.4

7.8

11

27

18

15

13

13

296.7

9.89

0.369

O.41

588

Calendar year 195O: Max 337 Mln 3.4 Mean 91.1 Cfsm 3.40 In. 46.19 Ac-ft 65,940

Water Hater year year 1950-51: 1950-51: Max Max 491 491____Hln Mln 6.8 6.8 Mean Mean 32.7 32.7 Cfsm Cfsm 3.09 3.09 In. In. 41.89 41.89 Ac-ft Ac-ft 59,9OO 59,9OO

Peak discharge (base. 4OO cfs). Hay 11 (11:30 p.m.) 464 cfs (2.62 ft)i May 24 (1 a.m.) 566 cfs 

(2.83 ft); Hay 28 (2 a.m.) 455 cfs (2.60 ft)j June 15 (11 p.m.) 654 cfs (2.99 ft). 

* Discharge measurement made on this day..

Ho gage-height recrod; discharge Interpolated, 

b Stage-discharge relation affected by Ice.
PEND OREILLE RIVER BASIN 

Kootenal Creek near Stevensville, Mont.

219

Location.--Lat 46°32 I 30", long. 114°10'00", in SW^NWi sec. 18, T. 9 N., R. 20 W., on 

left bank 3 miles upstream from mouth and 4 miles northwest of Stevensville.

Drainage area. 28.9 sq mi (revised).

Records available. December 1948 to September 1951.

Gage.--Water-stage recorder.

Extremes.--Maximum discharge during year, 654 cfs June 15 (gage height, 4.36 ft); minimum daily, 12 cfs Jan. 30.

1948-51: Maximum discharge, 1,300 cfs June 17, 1950 (gage height, 5.85 ft), from 

rating curve extended above 500 cfs; minimum daily, 6 cfs Feb. 19, 20, 1949.

Flood of May-June 1948 reached a discharge of 1,250 cfs, by slope-area determination, at a point a quarter of a mile downstream.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are poor.

Rating tables, water year 1950-51, except periods of Ice effect (gage height, 

In feet, and discharge, In cubic feet per second)

1.7 

2.0

2.2

2.3 

2.5

Oct. 1 to June 15

2.S 

3.1 

3.5 

3.9

June 16 to Sept. 30

117

197

325

470

1.6 

1.8 

2.0 

2.2 

2.4

2.7 

3.O 

3.4 

3.8

11?

190

Discharge, In cubic feet per second, water year October 1950 to September 1S51

Day

1 

Z

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

33

24

25

26

27

28

29

30

31

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

19 

19

19 

25 

*69

75

46

56

82

82

130

106

89

68

71

59

49

71

76

62

69

68

71

62

52

51

48

49

148

164

117

2,172

70.1

2.43

2.80

4,310

Nov.

*82 

69

66 

82 

110

87

76

68

b63

60

53

49

46

42

40

3S

35

34

32

31

29

29

30

31

52

66

64

56

49

45

-

1,614

53.8

1.86

2.08

3,200

Dec.

43 

43

43 

41 

b3O

b32

b34

33

31

31

31

32

31

30

31

*30

U.

27

27

28

30

31

43

53

61

49

41

38

40

38

34

1,113

35.9

1.24

1.43

2,210

Jan.

31 

31

31 

31 

29

b28

b24

25

26

26

25

24

23

b22

21

21

22

*b21

b21

b21

21

20

20

20

20

20

b!8

b!6

14

12

14

698

22.5

0.779

0.90

1,380

Feb.

ft

20 

21 

20

20

20

22

30

55

70

60

46

40

36

34

32

31

30

28

28

26

25

*b24

22

b22

b22

b22

_

-

-

842

30.1

1.04

1.08

1,670

Mar.

21

So

20 

20 

20

19

18

17

16

16

16

16

16

16

17

18

17

17

17

17

17

17

17

18

19

20

20

21

21

21

»21

566

18.3

0.633

0.73

1,120

Apr.

21 

53

33 

46 

62

82

95

106

95

82

78

84

120

150

137

134

145

161

161

134

106

87

80

82

102

147

*166

189

215

183

-

3,306

110

3.81

4.25

6,560

May

150 

120

m161

264

322

*322

304

360

378

367

280

221

186

189

236

294

264

274

297

346

384

360

353

318

346

367

290

255

209

8,436

272

9.41

10.85

16,730

June

166 

13O

113 

120 

156

158

150

134

ISO

212

264

318

350

*374

469

426

348

331

310

307

280

271

271

295

256

256

280

259

241

244

-

7,639

255

8.82

9.84

15, 150

July

256 

298

286

m

265

259

220

202

250

162

182

232

268

262

*250

241

235

208

159

114

102

104

110

140

110

95

95

93

74

66.

5,932

191

6.61

7.62

11,770

Aug.

§

60 

56 

49

45

42

37

35

36

36

33

30

29

27

26

25

24

23

*22

22

23

26

25

22

20

20

20

20

21

20

1,003

32.4

1.12

1.29

1,990

Sept.

19 

18

18 

17 

17

16

16

17

17

16

19

18

18

17

16

16

16

16

16

16

15

15

16

15

25

44

34

31

26

25

-

585

19.5

0.675

0.75

1,160

Calendar year 1950: Max 755 Min 10 Mean 97.9 Cfsm 3.39 In. 46.02 Ac-ft 70,900

Water year 1950-51: Max 469 Mln 12 Mean 92.9 Cfsm 3.21 In. 43.62 Ac-ft 67,250

Peak discharge (base. 500 cfsK June 15 (9 p.m.) 654 cfs (4.36 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice. 

Note. Ho gage-height record Nov. 10-16, Jan. 8-13, Jan. 29 to Feb. 23, Mar. 1-13; d'scharge estimated on basis of temperature records and records for Blodgett Creek near Corvallls.
220 PEND OREILLE RIVER BASIN

Burnt Fork Creek near Stevensville, Mont.

Location. La t 46°27'50", long. 113°56'40", in NWs-SWs- sec. 11, T. 8 N. , R. 19 W. , on 

downstream side of county road bridge, 8 miles southeast of Stevensville.

Drainage area. --74 sq mi , approximately.

Records available . May 1920 to August 1924, April 1938 to September 1951.

Page. Staff gage read once daily except Sundays and holidays. May 8, 1920, to Aug. 23, 

1924, staff gage at same site at different datum.

Average discharge. 13 years (1938-51), 49.3 cfs.

Extremes . --Maximum discharge observed during year, 361 cfs May 24 (gage height, 2.16 

 f t ) ; maximum gage height observed, 3.17 ft Jan 31 (backwater from ice); minimum

daily discharge, 15 cfs Jan. 30, 31.

1920-24, 1938-51: Maximum discharge observed, 641 cfs May 28, 1938 (gage height,

2.92 ft); maximum gage height observed, 3 40 ft Jan. 6,9, 1947 (backws-ter from ice);

minimum daily discharge, 2 cfs Mar. 11, 1948.

Remarks . --Records fair except those for periods of ice effect or no gage-flight record, 

which are poor. Bypass diversion supplies water for irrigation of aboi-t 2,000 acres 

below station. During irrigation season natural flow of stream is augmented by 

release from Burnt Fork Lake (capacity, 510 acre-ft).

Rating table, water year 1950-51, except periods of Ice effect (grge 

height. In feet, and discharge, In cubic feet per second)

0.6

.7

1.2

1.5 

1.9 

2.2

147

260

377

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

a20 

20

20

20

*23

26

23

a22

22

20

20

20

20

20

a20

21

26

27

29

25

25

a25

25

25

25

25

25

25

a38

*38

36

756

24.4

1,500

Nov.

34 

34

32

36

a40

42

33

33

b26

bgO

a22

a23

b24

b24

b25

26

36

36

a35

b34

36

34

a33

32

36

a36

36

36

36

36

-

966

32.2

1,920

Dec.

35 

38

a38

38

b30

t>26

b27

b29

28

a28

28

29

29

b29

29

29

»29

29

29

29

29

29

30

a30

a31

32

34

32

30

30

a30

943

30.4

1,870

Jan.

a31 

32

32

b32

b31

b28

a22

b22

b23

b23

b24

b25

b25

a26

29

34

#27

b26

b25

b25

a26

b26

b27

b28

b28

b28

b24

a20

b!7

b!5

blS

796

25.7

1,580

Feb.

b!6 

b20

b24

a26

b26

b25

b24

b24

b27

b30

a 30

29

b28

b28

b28

29

b29

a30

31

27

29

a29

b29

»b28

a28

b27

b26

b26

_

.

-

755

27.0

1,500

Mar.

b27 

b26

b26

a25

b24

b23

b22

b22

b22

b22

a22

b22

22

22

22

b22

22

a22

22

22

22

22

22

22

a24

26

22

22

22

22

»26

711

22.9

1,410

Apr.

a28 

31

38

50

52

61

66

a67

67

61

55

58

64

70

a71

73

77

84

84

84

84

a75

67

64

64

67

*70

84

alOO

106

-

2,022

67.4

4,010

May

102 

95

84

98

126

a!75

260

275

260

260

290

321

a260

226

202

 199

226

246

246

a246

246

267

321

361

32T

297

a305

313

282

a250

226

7,386

238

14, 650

June

196 

175

a!70

168

178

178

168

168

163

al65

168

168

193

*240

223

337

a310

297

267

193

226

226

208

a205

202

196

191

191

180

170

6,120

204

12,140

July

a!50 

154

145

al60_

154

154

145

al40

132

145

136

124

124

116

allO

»106

104

96

93

84

84

a75

67

64

64

61

52

51

| a47 1 43

43

3,223

104

6,390

Aug.

51 

51

51

51

a45

38

38

38

38

38

38

a37

36

36

36

32

32

32

a31

29.

33

35

35

»36

35

a35

35

35

35

35

35

1,162

37.5

2,300

Sept.

aif

a34

34

25

25

25

25

a26

27

25

25

25

25

25

a25

25

25

25

25

25

25

a25

25

24

25

25

23

21

a21

780

26.0

1,550

Calendar year 1950: Max 379 Mln 10 Mean 54.2 Ac-ft 39,250

Water year 1950-51: Max 361 Mln 15 Mean 70.2 Ac-ft 50,820

» Discharge measurement made on this day.

a No gage-height record; discharge Interpolated or estimated on basis of temperature records and 

records for Skalkaho Creek near Hamilton, 

b Stage-discharge relation affected by Ice.
PEKD OREILLE RIVER BASIN 221

Lolo Creek near Lolo, Mont.

Location. La t 46°45', long. 114°09', in NVf£ sec. 5, T. 11 N., R. 20 W., on left bank 

4 miles upstream from mouth and 3 miles southwest of Lolo.

Records available. November 1950 to September 1951. 

Gaze. Vfeter-stage recorder.

Extremes. Maximum discharge during period, 1,500 cfs May 12 (gage height, 4.98 ft); max- 

 imum gage height, 5.71 ft Feb. 11 (backwater from ice); minimum, 46 cfs Sept. 19, 20 

(gage height, 1.52 ft).

 ks.--Records poor. Numerous small diversions mainly for irrigation of toy meadows 

above station.

Rating table, water year 195O-51, except periods of ice effect (gage 

height, in feet, and discharge. In cubic feet per second)

1.5 

1.7 

2.0 

2.5 

3.0

118

233

400

3.5 

4.0 

4.5 

5.0

615

88O

1,180

1,510

Discharge, in cubic feet per second, November 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Ac- ft

Oct. Nov.

*242

516

192

198

213

205

195

19O

154

*b!38

b!35 

b!35

b!35

b!30

b!25

b!30

b!28

b!27

b!25

b!25

b!27

b!30

131

133

156

162

154

145

135

145

-

4,656

155

9,240

Dec.

137

126

116

b!05

97.

104

bllS

b!18

b!20

122

126 

128

*126

114

126

120

116

114

113

116

122

122

158

211

251

m233

216

208

198

4,586

148

9.1OO

Jan.

185

176

169

165

156

128

122

bl25

b!28

b!30

bl32 

b!35

b!37

bl44

150

141

137

*131

129

143

158

139

139

145

137

143 

111

b65

b60 a60"

b65

4,085

132

8,100

Feb.

blOO

b!25

b!40

bl45

b!45

b!42

b!40

b!5O

b200

b400

bSOO 

b450

a420

a390

a36O

319

282

266

245

227

213

*195

182

b!75

b!60

b!50 

143

bl40

_

-

-

6,504

232

12,900

Mar.

b!35

bl32

b!3O

b!27

b!25

b!23

b!21

a!20

a!20

bl22

b!25 

b!25

b!25

126

126

139

129

116

120

128

137

133

129

131

148

165 

162

*158

167

171

175

4,188

135

8,310

Apr.

192

513

263

336

400

464

534

584

584

534

489 

468

525

660

675

645

625

655

685

640

579

525

480

452

444

456 

494

579

814

842.

15,836

528

31,410

May

748

*660

597

592

655

842

1,040

*1, 130

1,100

1,140

1,290 

1.420

1,260

1,110

970

*898

952

1.O10

982

970

970

1,050

1,220

1,270

1,200

1,110 

1,080

1,140

982

928

904

31,220

1,O07

61,920

June

808

695

620

597

695

685

650

602

584

610

*660 

737

764

82O

946

1.020

94O

898

798

737

690

645

606

645

625

552 

538

498

460

444

-

20,569

686

40,800

July

432

440

432

472

464

516

498

432

400

444

386 

340

326

326

309

 292

276

260

248

242

227

205

190

182

173

169 

167

162

156

148

159

9,453

3O5

18,750

Aug.

T52" 133

ill

98

86

82

80

73

77

72

71 

71

70

70

68

65

63

59

58

52.

55

55

64

*67

76

80

77

70

65

63

62

2,320

74.8

4.6OO

Sept.

56

54

60

62

63

6O

55

55

58

59

59 

56

54

53

51

51

50

49

P-BT

51

51

54

51

53

111

63

58

54

-

1,726

57.5

3,42O

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

Peak discharge (base. 1.OOP cfsi. May 12 (1O:3O a.m.) 1,500 cfs (4.98 ft); May 24 (8 a.m.) 1,32O 

cfs (4.73 ft); June 16 (6 a.m.) 1,100 cfs (4.32 ft). 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of temperature records, 

b Stage-discharge relation affected by ice.
222 PEND OREILLE RIVER BASIN

Clark Fork below Mlssoula, Mont.

Location. Lat 46°52'10", long. 114°07'30", in NE&Ei sec. 21, T. 13 N., R. 20 W., on 

right bank 2 miles downstream from Bitterroot River and 5 miles (revieed) west of 

Missoula.

Drainage area. 8,690 sq. mi, approximately. 

Records available.--October 1929 to September 1951. 

Page. Water-stage recorder. 

Average discharge. 22 years, 4,897 cfs.

Extremes.--Maximum discharge during year, 32,500 cfs May 25 (gage height, 9.09 ft); minimum recorded, 1,110 cfs Jan. 29 (gage height, 0.68 ft).

1929-a: Maximum discharge, 52,800 cfs May 23, 1948 (gage height, 12.08 ft); minimum, 388 cfs Jan. 18, 1933; minimum gage height, 0.37 ft Sept. 13, 1937.

Remarks.--Records excellent except those for period Jan. 29 to Feb. 2, which are poor. 

Some diurnal fluctuation at low flows caused by powerplant at Bonner. Diversions for 

irrigation of about 235,000 acres above station.

Revisions (water years).--W 1042: 1931.

Rating tables, water year 195O-51, except period of Ice effect (gape 

height, In feet, and discharge. In cubic feet per second)

Oct. 1 to Hay 25 Hay 26 to Sept. 30

0.7 

1.0 

1.5 

2.0 

2.5 

3.0

1,130

1,460

2,190

3,050

4,070

5,270

4.0 

5.0 

6.0 

8.0 

10.0

6,260

11,800

15,800

26,000

38,000

1.6 

2.0 

3.0 

4.0 

5.O 

6.0

2,600 

3,280 

5,*8O 

8,500 

12,000 

15,600 

. Same as 

Ing table

above 6.0 ft. 

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16 

17 

18

19 

20

21

22 

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

3,280 

5.240

3,320

3,300

3,480

3,720 

3,920

3,830

3,810

3,850

 3,960

4,180

4,220

4,140

4,000

4,000 

4,030 

4,070

4,310 

4,290

4,070

4,070 

4,180

4,110

3,960

3,850

3,870

3,980

4,470

5,490 

5.590

124,590

4,019

247,100

Nov.

5.140 

4,940

4,740

4,640

4,810

5,040 

5,010

5,060

4,760

 4,090

4,140

4,400

4,200

4,140

4,340

3.660 

4,030 

4,250

4,050 

3,700

3,870

4,050 

4,030

3,890

3,960

4,220

4,340

4,250

4,140

4,030

129,920

4,331

257,700

Dec.

4,OOO 

3,92O

3,740

3,660

3,400

2.920 

3,070

3,720

3,700

3,560

 3,520

3,580

3,620

3,500

3,360

3,420 

3,420 

3,400

3,340 

3,340

3,340

3,340 

3,460

3,830

4,200

4.520

4,430

4,200

4,090

3,980 

3,940

113,520

3,662

225,200

Jan.

3.830 

3,680

3,660

3,620

3,480

3,220 

2,540

2,460

2,750

3,010

2,880

3,010

 3,200

3,320

3,380

3,400 

3,340 

3,240

2,860 

2,580

2,610

2,990 

2,900

2,790

3,05O

3,20O

2,790

1,700

al,300

al.200 

al,S66

89,290

2,880

177,100

Feb.

al.500 

*bl,700

2,38O

2,660

2,840

2,840 

2,860

2,970

3,620

5,730

7,680

8.750

7,686

5,680

5,060

4,810 

4,520 

4,290

4,180 

4,000

3,96O

 3,830 

3,560

3,440

3,600

3,560

3,280

3.24O

-

:

113,620

4,058

225,400

Mar.

3,200 

3,110

3,030

2,960

2,680

2.080 

2,270

2,510

2,880

2,970

2,940

2,960

3,010

3,090

3,140

3,440 

3,560 

3,280

3,140 

3,340

3,680

4,520 

4,520

4,180

4,400

 5,060

5.580

4,860

4,380

4,310 

4,430

109,310

3,526

216,800

Apr.

4.760 

5,300

6,120

7,020

7,780

8,420 

8,850

9,290

9,840

9,600

9,290

8,850

8,890

10,100

11,100

10,900 

10,700 

11,100

11,700 

11,600

10,800

10,200 

9,570

9,060

8,610

8,52O

8,850

9,780

11,500

 13.800

281,900

9,397

559,100

May

14,300 

13,400

12,600

12.200

13^000

15,100 

19,000

21,900

24,300

24,700

26,300

29,700

31,400

30,200

27,100

 24,100 

23,000 

24,400

25,700 

25,600

25,100

25,100 

26,700

30,000

32.100

30,100

27,200

27.1OO

28,500

26,000 

23,700

739,600

23,860

*1,467

June

21.7OO 

19,400

17,300

16,000

16,200

17,300 

17,300

17,000

16,500

16,100

16,800

18,400

19,800

 21,000

23,200

26,000 

27.500 

25,800

23,600 

21,400

19,800

18,400 

17,200

16,500

17,600

16,300

15,400

15,000

14,200

13.300

561,800

18,730

July

12,800 

13,100

13.6OO

13,500

14.300

14,000 

13,200

12,500

11,700

12,100

12,800

11,700

10,900

10,600

9,960

9,760 

 9,180 

8,570

8,030 

7,610

7,420

6,510 

5,970

5,700

5,480

5,350

5,]40

4,?70

5, COO

4,710 

4.620

290,780

9,380

576,800

Aug.

,4.320 

4,280

4,210

4,040

4,000

3,890 

 3,710

3,500

3,440

3,280

3,420

3,480

3,500

3,440

3,330

3,240 

3,140 

3,020

2,930 

2,830

2,760

2.710 

2,730

2,860

3,070

3,120

3,050

3,100

3,150

3,280 

3,480

104,310

3,365

206,900

Sept.

3,500 

3,440

3,440

3,460

3,350

3,300 

3.26O

3,330

3,240

3,050

3,050

3,100

3,100

3,050

2,980

2,930 

2,910 

 2,910

2.880 

2,910

2,980

 3,070 

3,230

3,410

' 3,460

3,570

3.670

3,670

3,610

3,540

97,400

3,247

193,000

Calendar year 1950: Max 38,500 Mln 1,250 Mean 6,957 Ac-ft 5,037,000

Water year 1950-51: Max 32,100 Mln 1,200 Mean 7,551 Ac-ft 5,466,000

Peak discharge f

e. 12.000 cfa). May 13 (7:30 p.m.) 31,800 ofs (8.96 ft)j May 25 (ll a.m.) 

32,500 ofs (9. June 17 (8 a.m.) 27,700 ofs (8.28 ft).

 Discharge measurement made on this day.

* Expressed In thousands.

a No gage-height record; discharge estimated on basis of weather records.

b Stage-discharge relation affected by Ice.
PEND OREILLE RIVER BASIN 223

Clark Pork at St. Regis, Mont.

Location. Lat 47°18'10", long. 115°05'10", in center of SWi sec. 19, T. 18 N., R. 27 W., 

on left bank 0.5 mile downstream from St. Regis River and 0.8 mile east of St. Regis.

Drainage area. 10,500 sq mi, approximately.

Records available. October 1910 to September 1923, February 1929 to September 1951. 

Gage. Water-stage recorder. Prior to Nov. 29, 1933, staff gage at same site and datum. 

Average discharge. 35 years, 7,341 cfs.

Extremes. Maximum discharge during year, 41,700 cfs May 26 (gage height, 15.76 ft); minimum, 1,600 cfs Jan. 30 (gage height, 3.77 ft, from recorded range in stage).

1910-23, 1929-51: Maximum discharge observed, 68,900 cfs May 24, 1948 (gage height, 

19.96 ft); minimum discharge, 1,000 cfs Dec. 17, 1940 (gage height, 3.36 ft), but may 

have been less during period of ice effect Feb. 19-22, 1929.

Remarks. Records excellent except those for periods of no gage-height recorc1 , which are 

poor. Some diurnal fluctuation at low flows caused by powerplant at Bonner. Diversions 

for irrigation of about 244,000 acres above station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

4.4

4.7 

5.0 

6.0 

7.0

2,180

2,580

3,010

4,800

6,950

8.O 

10.0 

12.0 

14.0 

15.6

9,500

15,900

23,900

32,900

40,800

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

4.150

4,170

4,130

4,240

4,260

4,540

4,740

4,840

4,780

*4,820

4,900

4,890

5,120

5,120

5,060

4,940

5,000

5,080

5,260

5,440

5,360

5,160

5,200

5,260

5,200

5,120

5,040

5,180

6,070

7,220

7.800

158,070

5,099

313,500

Nov.

7.500

7,000

6,670

6,510

6,670

 6,880

6,980

6,930

6,770

6.27O

5,740

5,810

5,870

5,650

5,680

5,530

5,180

5,590

5,530

5,260

5.100

5,300

5,400

5,340

5,460

5,680

5,870

5,920

5,790

5,680

-

179,560

5,985

356,200

Dec.

5,630

5,460

5,360

5,140

5,040

4,560

4.560

4,460

4,960

4,940

4,780

 4,780

4,820

4,800

4,640

4,500

4,600

4,580

4,520

4,500

4,560

4,680

5,080

5,9£0

6,630

7.02O

7,020

6,700

6,360

6,160

6,010

162,570

5,244

322,500

Jan.

5.850

5,650

6,480

5,380

5,220

4,940

4,360

5,950

4,080

4,150

4,260

4,220

4,350

4,500

4,580

4,600

4,640

 4,500

4,270

3,990

3,720

5,810

4,040

5,950

5,990

4,360

4,400

a3,800

a2,800

a2.200

a2,500

152,260

4,266

262,500

Feb.

az.eoo

a3,000

a3,600

4,200

4,110

4,260

4,200

4,680

5,080

8,090

12 , 100

14.600

13,000

10,600

9,150

8,350

7,780

7,220

6,860

6,560

 6,290

6,090

5,830

5,480

5,340

5,580

5,160

4,960

-

.

-

184,550

6,591

366,000

Mar.

4,840

4,720

4,600

4,500

4,460

3,950

5.510

5,400

3,990

4,270

4,260

4,180

4,200

4,240

4,510

4,480

4,720

4,680

4,440

4,400

4,660

5,000

5,870

5,700

5,480

6,050

 6,670

6.740

6,310

6,030

6,050

150,490

4,855

298,500

Apr.

6.510

6,900

7,920

9,310

10,800

12,000

15,000

15 , 80O

14,300

14 , 100

15,700

15 , 400

15,500

14,800

16 , 400

16,500

16,200

16 , 400

17,000

17,000

16 , 100

15,000

 14,100

13,400

12,800

12,700

13,000

14 , 100

16,200

18.900

-

409,640

15,650

812,500

May

20,400

19,500

18,200

17.500

18,000

20,400

25,000

29,200

 31,20O

33,500

34,900

38,400

40,600

40,000

37,000

53,600

31,600

32,200

35 , 600

54,100

55,800

55,700

55,200

38,000

40.700

40,500

57,800

55,700

36,600

35,100

52,000

986,800

51,830

*1,957

June

29,400

26,900

24,500

22,500

22,000

22,600

25,100

22,600

.22,400

21,800

22,500

25,800

 25,500

26,900

28,900

51,500

55.500

52 , 900

50,900

28,400

26,600

24,700

23,300

22,800

21,700

22,000

20,700

, 20,000

19,200

17.900

-

741,100

24,700

*1,470

July

17,000

16,400

17,200

17,400

17 , 600

18.100

17,200

16,100

15,300

14,7OO

15,400

15,100

13,900

15,300

12,400

 12,100

11,700

11,000

10,300

9,700

9,180

8,660

8,080

7,550

7,250

7,120

6,900

6,540

6,420

6,540

6.090

572,050

12,000

757,900

Aug.

5.850

5,650

5,550

,400

,240

,140

,000

* ,780

,600

,500

,480

,480

,500

,480

,400

,290

,170

,040

,910

,820

,720

,630

3.550

,640

,790

,990

,000

,000

,090

,180

,290

137,160

4,425

372,100

Sept.

4,440

4,420

4,380

4,550

4,510

4,180

4,110

4,090

4,170

4,040

3,900

5,880

5,900

5,830

5,810

5,720

5,660

3,640

 5,640

5.650

3,660

5,750

5,900

4,020

4,220

4,480

4,480

4.500

4,460

4,420

-

122,020

4,067

242,000

Calendar year 1950: Max 50,900 Mln 1,900 Mean ' 9,779 Ac-ft 7,080,000

Water year 1950-51: Max 40,700 Mln 2,200 Mean 10,240 Ac-ft 7,410,000

 Discharge measurement made on this day.

* Expressed in thousands.

a Mo gage-height record; discharge estimated on basis of temperature records and records for 

station below Mlssoula.
224 FEND OREILIE RIVE? BASIN

Plathead River at Flathead, British Columbia 

(International gaging station)

Location. lat 49°00 I , long. 114 D 29', on left bank at highway bridge, 0.2 mile north Of 

International boundary, 0.2 mile northwest of Plathead, British Columbia, and 7 miles 

northwest of Trail Creek, Mont.

Drainage area. -450 aq ml.

Records available. March 1929 to September 1951 {no winter records).

Page.--Water-stage recorder. Altitude of gage is 3,980 ft (from topographic map). Prior 

to Sept. 1, 1949, staff gage at same site and datum.

Extremes. -Maximum discharge during year, 8,100 cfa May 12 (gage height, 6.12 ft); minimum recorded, 204 cfs Oct. 3 (gage height, 0.81 ft), but was probably less during 

period of no record in winter.

1929-51: Maximum discharge, 14,600 cfs May 23, 1948 (gage height, 9.1 ft, from 

floodmark), from rating curve extended above 8,000 cfs; minimum observed, 65 cfs Apr. 

9, 1929, but may have been less during periods of no record in winter.

Remarks. Records good. No regulation or diversion above station.

Cooperation. This station is one of the International gaging stations maintained by

Canada under agreement with the United States. 

Revisions (water years). W 1092: 1933 (maximum gage height only).

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, In eublo feet per second)

Nov. 1 to Sept. 50

0.8 

1.0 

1.5 

2.0 

2.5

200

285

578

967

1,280

1.5 440

1.6 640

2.0 '980

2.5 1,500

5.0 2,150

4.0 5,850

5.0 5,820

6.0 7,850

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

51

Total

Mean

Cfam

In.

Ac-ft

Oct.

219

21J

2 IE

215

254

296

306

290 

*581

456

458

498 

480

480

530

510 

498

614 777

1,150

1,180

940 

818

728

673

894

1,010

951

913

1,090

1.230

19,189

619

1.38

1.59

38,060

Nov.

1,060

917

827

784

890

971

899

760 

570

612

633

605 

482

555

528

t485

«

_

-

_

_

-

-

-

-

-

-

-

-

-

-

-

-

-

Dec. Jan. Feb. Mar. Apr.

_

_

_

_

_

_

:-

_

;

_

-

-

_

_

-

_

_

_

-

_

_

2,540

3,000

3,180

-

.

.

-

_

-

May

5,560

2,610

2,230

2.180

aS.ISo

a4,280

85,330

6,380 

6,560

7,080

7,450

7.810 

6,520

5,280

4,420

 4,580 

5,820

6,800

5,960

5,260

5,180

5,820 

6,860

7,180

6,060

4,720

4,420

4,320

3,810

5,270

2,860

157,420

5,080

11.29

13.02

312.200

June

2,590

2,700

2,950

5,130

 2,960

2,640

2,370

2.200 

2,300

2,950

3,940

4,720 

4,740

5,260

6,320

6.420 

5,220

4,420

4,040

3,640

5,160

2,930 

2,910

4,180

4,140

5,510

5,290

2,950

2,590

2,540

-

107,690

3,590

: 7.98

8.90

'15.600

Julj2,500

2,510

2,590

2,870

2,9^0

»2 . 9-V)

2,7>"")

2,410

z',z\o

2,160

2,0'»0

2,no

2,0^

2,O^O

1,9'0 

1,8-0

1.7.VJ

ijs^i

1,410

1,510

l|l80

1,140

1,100

1,0,^0

1,070

1,000 9.^5

8£1

57,81-6

1,870

4.16

4.80

114.800

Aug.

845

818

809

776

756

696

664

648 

626

619

619

626 

598

584

549

521 

494

482

458

*458

452 m476

464

452

458

458

 482

704

1.000

16,464

596

1.32

1.52

36.620

Sept.

1,150

1,210

1,100

962

872

800

736

720

696

640

680

656 

619

584

549

521 

488

482

458

45?

458

458 

476

521

854

1,440

1,180

1,050

1,080

1,680

23,558

785

1.74

1.94

46.730

Calendar year 1950 : max. - Mln - Mean - Cfam - In, - Aff-f t -

Water year 1950-51 : Max 7,810 Mln - Mesa - Cfun - In. - Ac-ft -

* Discharge measurement made on this day. 

+ Result of discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Flathead River near Columbia 

Falls, Mont.
FEND OREILtE RIVER BASIM 225

Plathead River near Columbia Falls, Mont.

Location (revised). Lat 48°28'20II ) long. IWOS'SO", In NE&iE^ sec. 12, T. 3.1 N., R. 20 

W., on right bank 1 mile upstream from Middle Pork and 8 miles northeast of Columbia 

Palls.

Drainage area.--1.553 sq ml (revised).

Records available. September 1910 to September 1917, April 1929 to September 1951.

Page. Water-stage recorder. Datum of gage Is 3,109.70 ft above mean sea levnl, datum 

of 1929 (levels by Bureau of Reclamation). September 1910 to September 1917, staff 

gage at site 1,000 ft downstream at different datum.

Average discharge. 23 years (1910-17, 1935-51), 2,855 cfs.

Extremes.--Maximum discharge during year, 20,800 cfs May 12 (gage height, 10.30 ft); 

minimum dally, 600 cfs Jan. 30.

1910-17, 1929-51: Maximum discharge, 29,500 cfs June 20, 1916 (gage height, 9.8 

ft, site and datum then In use); minimum, 296 cfs Mar. 5, 1945.

Remarks. Records excellent except those for [periods of no gage-height record, which are 

fair.

Rating table, water year 1950-51 (gage height, in 

feet, and discharge, in cubic feet per second)

1.5 

2.0 

2.5 

3.0 

4.0 

5.0

600

830

1,130

1,560

2,720

4,300

6.0 

7.0 

8.0 

9.0 

10.2

6,300

8,850

12,000

15,500

20,400

Discharge, in cubic feet per second, water year October 1950 to September, 1951

Day

1 

2 

3

4 

5

6

7

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. 

Ac-ft

Oct.

953

940 

928

552" 922

1,020

1,060

1,050

1,070

1,210

1,350

*1,380 

1,440

1,510

1,620

1,710 

1,720 

1,860

2,140

2,980

5.940

3,536

3,090 

2,780 

2,540

2,520

2,690 

2,690

2,810

3,150

3,500

61,060

1,970

1.27

1.46 

121,100

Nov.

5.320 

370l6 

2,760

2,590 

2,540

2,620

2,550

2,380

2,020

1,960

1,990

1,890 

1,770

1,760

1,710

*1,690 

1,650 

1,600

1,430

1,430

1,520

1,440

1.190 

1,340 

1,520

1,710

1,820 

1,790

1,740

1,700

*

58,440

1,948

1.25

1.40 

115,900

Dec.

1,590 

1,430 

1,530

1,440 

994

1,010

1,300

1,540

1,500

1,450

1,450

1,510 

1,500

1,410

1,360

1,350 

1,380 

1,400

1,360

1,380

1,550

1,680

2,030 

2,470 

3,190

5.630

7,f55 

2,940

2,660

2,490

2,400

56,174

1,812

1.17

1.35 

111,400

Jan.

2.220 

T7555 

1,970

1,710 

 1,540

1,380

1,550

1,430

1,640

1,610

1,580

1,550 

1,510

1,460

1,450

1,390 

1,350 

1,280

1,230

1,240

1,200

1,210

1,210 

1,170 

1,230

1,290

820 

712

a650

a 600

8*650

41,562

1,341

0.863

0.99 

82,440

Feb.

a700 8735" 

1,190

1,230 

1,250

1,160

1,100

1,140

1,590

2,060

5.050

3,050 

2,810

2/780

2,760

2,750 

2,500 

2,290

2,140

1,980

*1,870

1,690

1,590 

1,540 

1,610

1,560

1,420 

1,420

-

-

"

50,760

1,815

1.17

1.22 

100.700

Mar.

1.570 

1,296 

1,250

1,270 

1,020

922

910

594

1,000

1,070

1,120

1,150 

1,240

1,210

1,210

1,250 

1,160 

1,110

1,100

1,100

1,100

1,090

1,080 

1,050 

1,060

1,110

1,110 

1,070

1,070

1,080

1,100

34,626

1,117

0.719

0.85 

66,680

Apr.

1.160 

1,260 

1,500

1,860 

2,540

2,820

5,160

5,520

5,530

3,280

3,110

3,250 

5,940

4,720

4,740

4,640 

*4,940 

5,540

4,820

4,500

3,990

3,710

5,470 

3,590 

3,560

4,240

5,460 

6,550

8,120

9.660

120,600

4,020

£.59

2.89 

259,200

May

11,200 

9,810 

8,200

7.900 

9,690

13,500

16,500

17,200

17,200

18,100

*19,100

20.400 

19,600

16,800

14,300

13,000 

13,800 

16,600

17,200

15,100

14,200

14,700

17,000 

18,900 

18,300

15,100

13,400 

12,500

11,600

10,200

8,970

450,070

14,52Q

9.33

10.78) 

692,700

June

7,900 

7,480 

7,550

7,820 

7,800

7,280

6,650

6,200

6.040

6,766

8,550

10,900 

12,000

13,000

15,400

17.600 

15,90(5 

13,700

12,500

*11,500

10,200

9,150

8,760 

11,500 

13,100

11,000

10,300 

9,420

8,400

7,880

-

301,780

10,060

6.48

7.23 

598,606

July

8,000 

3,150 

8,250

9,150 

10,200

10.500

9,8l6

8,750

8,400

8,050

7,500

6,820 

6,880

7,080

7,120

*6,920 

6,700 

6,460

6,500

5,920

5,460

4,980

4,600 

4,520 

4,200

4,100

5,900 

5,710

5,640

5,500

5.510

202,26Q

6,5251

4.20

4.84 

401, 20d

Aug.

5.150 

3,020, 

2,940

2,860 

2,750

2,660

2,540

2,420

2,350

2,260

2,220

2,260 

2,140

rs.ogo

1 1,980

1,900 

1,820 

1,760

1,710

1,660

1,610

1,570

1.560 

1,640 

1,650

1,580

1,610 

1,670

1,690

2,020

2,670

65,740

2,121

1.37

1.58 

130,400

Sept.

; 2,900 

5.570 

3,236

2,970 

2,750

2,550

2,390

2,270

2,210

2,110

2,140

2,090 

1,990

1,880

1,790

1,710 

1,650 

1,580

1,530

1,510

1,490

IJ..46J!

TTloo

1,680 

2,000

*3,230

5,560 

2,990

2,810

3,080

68,240

2,275

1.46

1.65 

135,400

Calendar year 1950: Max 20,500 "in 600 Mean 3,836 Cfsro 2.47 In. 33.53 Ac-ft 2,777,000

Water year 1950-51: Max 20,400 Hi" 600 Mean 4,141 Cfsm 2.67 In. 36.20 Ac-ft [2,998,000

Peak discharge (base. 11.000 efal. May 1 (11 a.m.) 11,400 ofs (7.85 ft)j May 12 (8 to 9 p.m.) 

20,800 ofs (16.36 ft); May 25 (5 a.m.) 19,500 ofs (9.96 ft)j June 16 (9 a.m.) 17,700 ofs (9.56 ft); 

June 25 (2:30 a.m.) 14,100 ofs (8.62 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for other Flathead River stations.
226 PEND OREILIE RIVER BASIN

Skyland Creek near Essex, Mont.

tion."lat 48°17'30" > long. 113°23'10", (revised), in SE^NWi sec. 9, T, 29 N,, R. 

., on left bank 150 ft upstream from mouth and 10 miles northeast of Essex.

Drainage area. 8.09 sq ml.

Records available. January 1946 to September 1951.

Gage. Water-stage recorder and concrete control. Datum of gage is 4,83,3.83 ft above 

mean sea level, datum of 1929 (Corps of Engineers benchmark).

Average discharge. 5 years, 19.8 cfs.

Extremes. Maximum discharge daring year, 179 cfs June 15 (gage height, 2.05 ft); maximum gage height recorded, 3.27 ft Dec. 5 (backwater from ice); minimun daily discharge, 4 cfs Mar. 7, 8.

1946-51: Maximum discharge, 284 cfs May 22, 1948 (gage height, 2.15 ft); maximum gage height recorded, that of Dec. 5, 1950; minimum discharge, 0.1 cfs Nov. 15, 

1946 (gage height, 0.12 ft), caused by ice jam upstream.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

0.4

.5

.8 

1.0

3.1

5.1

8.0

16

26

1.2 

1.4 

1.7 

2.0

40

63

113

169

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Tbtal

Mean

Cfsm

In.

Ac-ft

Oct.

H6.8

6.8

7.4

8.0

7.0

6.8

7.4

9.4

10

7.7

 7.0

7.0

7.7

7.4

7.4

8.7

9.4

10

9.0

8.3

8.0

7.7 

8.0

8.7

8.7

8.7

12

16 n

264.6

8.54

1.06

1.22

525

Nov.

M10

10

12

11

10

,8.7

b8. 5

b8. 5

be. s

be. s

bS.5

be. s

be. 5

be

be

b7.5

b7.5

b7

b6.5

b6

b6

b7 

b7.5

8.0

8.3

8.0

8.0

8.0

"

255.5

8.52

1.05

1.17

507

Dec.

be

b7.5

b7

b6. 5

b6

b6. 5

b6. 5

b6. 5

6.8

7.7

7.7 7.4

7.4

7.7

7.4

7.7

7.7

7.7

7.4

7.4

8.0

8.3

11

tt

13

12

11

10

b9.5

b9

264.3

8.53

1.05

1.21

524

Calendar year 1950: Max 237

Jan.

be. 5

b7.5

b7.5

b7

b7

b7

b7

b7.5

7.4

7.4

7.4

7.4

7.4

7.0

7.0

7.0

6.8

b6. 8

6.8

6.5

6.5

6.5

6.2 

6.2

b6

b6

a5.5

b5.5

65

b5

210.3

6.78

0.838

0.97

417

Feb.

aS.5

ae'

a6

b6

b6

b6

5.9

b6. 5

be

alO

W.5

b7.5

b7

b6.5

b6.5

6.2

6.2

6.2

5.9

5.9

5.9

5.9

5.9 

5.9

5.6

b5.5

»b6.5

-

-

-

179.0

6.39

0.790

0.82

355

Mln 2

Mar.

aH

a5* 2

a5.0

b4.8

a4.5

b4

a4

a4.5

aS

aS

aS

b4.5

4.7

4.7

.7

.7

a .7

.7

.7

.7

.7

.7

.7 

.7

.7

.7

» .4

.2

.4

.4

145.4

4.69

0.580

0.67

288

Apr.

4*4. 

4.4

4.9

5.6

6.8

6.8

6.8

7.4

7.4

6.8

6.8

7.0

8.7

9.0

9.0

9.7

12

12

bll

11

10

a9.4

8.7

8.7 

9.7

 13

17

21

24

26

-

305.0

10.2

1.26

1.41

605

May

23 

20

19

19

24

37

46

53

 62

82

103

122

99

77

65

64

84

104

98

93

96

118

146

110

108

111

94

79

66

2,501

80.7

9.98

11.51

4.96O

June

56 

a52

a47

a48

a47

a44 42

43

51

65

86

101

115

139

165

152

126

108

99

93

88

81

77

108 

99

96

86

74

65

60

-

2,513

83.8

10.4

11.60

4.980

July

63 

a66

a7O

a74

a76

a80

864

53

56

63

55

*50

48

45

42

38

35

33

31

29

27

26

25

23 

22

22

21

20

20

19

18

1,314

42.4

5.24

6.04

2.61.0

Aug.

if

 17

16

16

16

15

16

15

15

15

15

14

14

14

13

13

12

15

12

12

12

12

12 

12

12

a!2

a!2

a!2

a!2

 12

428

13.8

1.71

1.97

849

Sept.

12 

13

12

12

11

11

11

10

10

10

12

11

11

10

10

111 9*7

9^7

9.7

9.7

9.7

10

10

11 

21

 18

14

13

13

13

347.2

11. 6

1.43

1.60

689

Mean 26.0 Cfsm 3.21 In. 43.64 Ac-ft 18,790

Water year 1950-51: Max 155 Min 4 Mean 23.9 Cfsm 2.95 In. 40.19 Ac-ft 17,310

Peak discharge (base. 65 cfs). Hay 12 (5:30 a.m.) 127 cfs (1.78 ft); Hay 24 (1 a.m.) 163 cfs 

(1.97 ft); June IS (7 to 10 p.m.) 179 cfs (2.05 ft); June 24 (2 a.m.) 120 cfs (1.74 ft); July 6 (time 

unknown) 84 cfs (1.53 ft); July 10 (2 to 4 a.m.) 71 cfs (1.45 ft).

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of temperature records op on basis of records 

for Bear Creek near Essex and Middle Pork Flathead River at Essex.

b Stage-discharge relation affected by Ice.
FEND OHKILLE RIVER BASIN 227

Bear Creek near Essex, Mont.

location (revised). lat 48 e 16'50", long. 1130 25'30", in SEfrO& sec. 18, T. 29 N., R. 14 

W., on right bank 1 mile downstream from Autumn Creek and 8f miles east of E^sex.

Drainage area. 20.7 sq ml.

Records available. January 1946 to September 1951.

Page. Water-stage recorder.

Average discharge. 5 years, 47.6 cfs.

Extremes. Maximum discharge during year, 352 cfs Hay 11 (gage height, 2.19 ft); minimum 

daily, 9 cfs Mar. 7-9.

1946-51: Maximum discharge, 696 cfs May 22, 1948 (gage height, 3.01 ft); minimum 

dally, 5.5 cfs Jan. 21 to Mar. 4, Mar. 8-16, 1949.

Remarks. Records good except those for periods of ice effect or nd gage-height record, 

which are poor.

Rating tables, Hater year 1950-51, 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. 3O

9.0

12

16

22

36

0.8 53

1.0

1.2 98

1.3 114

0.2 

.4

.6

.8

1.0

1.3 

1.6 

1.9 

2.1

124

107

265

324

Discharge, in cubic feet per second, water year October 1950 to September 19H.

Day

1 

2

3

4

5

6 

7

8

9

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 SB

In.

Ac-ft

Oct.

$

14

14

16

18 

16

15

18

23

32

23

 20

19

19

18

18

24

30

41

35

31

30

26

25

28

28

28

52

SB- 75

822

26.5

1.28

1.48

1,630

Nov.

48 

41

38

47

51

44 

40

35

b30

b28

b28

25

b24

b23

23

22

22

b22

b21

b21

b21

a20

a!9

a20

a22

a24

a25

a25

a25

a24

-

858

28.6

1.38

1.54

1,700

Dec.

a24 

a23

a21

»b20

a!9

a20 

a21

a23

a26

a30

33

32

29

27

26

25

25

25

24

26

36

36

77

~95 103

73

62

55

48

46

42

1,172

37.8

1.83

2.11

2,320

Jan.

'I

a32

b29

a27

a26 

a25

a25

a25

a24

a24

23

21

a21

21

a20

a!8

b!7

a!6

a!5

a!5

a!4

a!4

a!4

a!4

a!3

a!2

all

alO

alO

alO

621

20.0

0.966

1.11

1,230

Feb.

a?

all

a!2

b!2

a!2 

a!2

12

0.5

a30

a§2

a40

a30

b25

22

a20

a!8

a!7

16

a!6

 16

16

a!5

a!5

a!5

15

b!5

»b!7

_

_

-

515

18.4

0.889

0.93

1,020

Mar.

£

al2

all

alO

alO 

a9_

a9

a9

alO

alO

alO

10

alO

alO

alO

bio

alO

10

11

all

10

alO

alO

all

all

all 10

all

11

all

325

10.5

0.507

0.58

645

Apr.

ail

20

a30

a45

54 

54

58

50

43

40

50

74

64

62

68

84

aSO

a70

aSO

a56

a54

aS2

52

64

*90

126

143

158

164

1,993

66.4

3.21

3.58

3,950

May

126

105

98.

114

180

243 

249

243

 256

288

306

509

Hf

197

178

192

235

252

220

212

215

256

297

285

233

202

202

200

169

151

132

6,594

213

10.3

11.87

13,080

June

121 

116

111

114

113

110 

 108

105

119

139

160

176

187

212

238

220

182

160

151

137

128

119

116

190

173

166

151

134

119

allO

-

4,385

146

7.05

7.87

8,700

July

alOO 

alOO

a!05

alls

a!25

al40 

allB"

alOO

a!05

allO

alOO 89

86

81

77

71

67

62

56

52

50

45

43

42

39

38

36

34

33

32

31

2,274

73.4

3.55

4.09

4,510

Aug.

30 

29

 28

27

27

26 

26

26

26

24

25

25

24

23

22

22

21

21

20

20

20

20

20

20

20

20

20

24

23

25

 22

726

23.4

1.13

1.30

1,440

Sept.

21 

24

22

80

19

18 

18

18

18

18

20

19

18

17

16

16

16

16

15

15

15

16

17

18

45

 46.

32

31

31

30

-

645

21.5

1.04

1.16

1,280

Calendar year 1956: Max 519 Mln 6.5 Mean 58.9 cfsm 2.85 In. 38.59 Ac-f -. 42,610

Water year 1950-51: Max 309 Mln 9 Mean 57.3 cfsm 2.77 In. 37.62 Ac-f". 41,500

p.m.) 352 cfs 2.19 ftjj May 17 (10 t 

(2.09 ft)j June 15 (7 to 11 p.m.) 25Z

r. 29 (7:30 to 10:30 p.m.) 178 cfs (1.56 ft)j May 11 (9 to 10 

0 12 p.m.) 277 cfs (1.94 ft)j May 23 (9 to 12 p.m.) 321 ofs 

cfs (1.85 ft); June 24 (7 to 9 p.m.) 194 cfs (1.63 ft); July 6

(time unknown) 156 cfs (1.46 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of temperature records and reco.-ds for Skyland Creek near Essex and Middle Fork Flathead River at Essex.

b Stage-discharge relation affected by ice.
228 PEHD OREILLE RIVER BASIN

Middle Fork Flathead River at Essex, Mont.

Location. Lat 48°16'30", long, 113°36'10", in SW$ sec. 14, T. 29 N., R. 16 W., on right 

bank 0.6 mile upstream from Ole Creek, 0.7 mile southeast of Essex, rnd 4 miles downstream from Bear Creek.

Drainage area. 510 sq mi (revised).

Records available. October 1939 to September 1951.

Page. Water-stage recorder.

Average discharge. 12 years, 1,012 cfs.

Extremes. Maximum discharge during year, 9,180 cfs May 12 (gage height, 8.99 ft); minimum dally, 175 cfs Jan. 30.

1939-50: Maximum discharge, 14,500 cfs May 22, 1948 (gage height, 10.95 ft, from 

partly estimated gage-height record); minimum, 17 cfs Jan. 11, 1941 (gage height, 1.30 

ft, caused by ice jam upstream).

Remarks. Records excellent except those for periods of ice effect or no gage-height 

record, which are poor.

Rating table. Miter year 1950-51, except periods of lee effect (gage 

height. In feet, and discharge, In cubic feet per second)

2.1 

2.4

2.7 

3.0 

3.5 

4.0

168

257

369

504

768

1,120

5.0 

6.0 

7.0 

8.0 

8.8

2,050

3,330

5,000

6,960

8,730

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8 

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

228 

225

22T 

225

244

310

314

303 

337

430

805

768 

 682

629

639

629

598

677

869

1,100

1,210

1,140

1,040

930

856

850

823

818

1,100

1,590

1.620

22,214

717

1.41

1.63

44,060

Nov.

1.390 

1,200

1,060 

1,050

1,220

1,240

1,180

1,040 

876

836

843

799 

710

716

655

660

639

613

573

543

568

528

444

588

624

704

745

756

745

722

-

24,267

809

1.59

1.77

48,130

Dec.

682 

682

634

588

514

608

650

645 

578

578

629

 639 

624

593

588

583

583

578

568

603

733

811

1,230

1,980

2.260

1,960

1,600

1,390

1,200

1,100

988

27,399

884

1.73

1.99

54,350

Jan.

HI

793 

733

650

600

550

525 

600

550

525

500 

500

475

475

450

425

400

 380

400

400

400

400

400

400

350

275

250

a200

ai75

aioo

14,706

474

0.929

1.07

29,170

Feb.

»ff§

300 

350

375

375

375

375 

500

900

1.420

1,236 

1,060

944

876

811

727

a675

629

588

558

524

485

495

490

457

412

444

_

_

-

16,850

602

1.18

1.23

33,420

Mar.

 448 

444

430 

35O

250

225

225

225 

a250

a350

375

400 

350

300

300

300

300

300

300

300

300

300

296

288

299

325

322

 299

307

337

365

9,860

318

0.624

0.72

19,560

Apr."

If! 634 

830

1,120

1,280

1,280

1,410 

1,340

1,170

1,070

1,140 

1,490

1,640

1,620

1,630

1,890

2,100

1,860

1,640

1,410

1,260

1,180

1,110

1,200

 1,540

2,130

2,770

3,170

3.720

-

45,491

1,516

2.97

3.31

9O.230

May

3,210 

2,610

2.250 

2,280

3,030

4,860

5,940

6,140 

 6,480

7,130

7,730

6.660 

7,000

5,460

4,420

4,160

4,950

6,220

5,790

5,450

5,450

6,360

7,890

8,130

6,520

5,310

5,090

5,460

4,710

3,910

3,280

165,880

5,351

110". 5

12.11

329,000

June

2,810 

2,560

2,520 

2,670

2,690

2,500

 2,370

2.250 

2,410

3,220

4", 350

4,980 

5,240

6,020

7.320

7,300

5,960

4,950

4,420

3,940

3,540

3,260

3,110

3,830

3,750

3,660

3,640

3,330

3,040

2,890

-

114,530

3,818

7.49

8.36

227,200

July

2,850. 

2,860

2,930 

3,220

3,200

3.610

STSSo"

2,860 

2,900

2,970

2.810

 2,640 

2,600

2,600

2,510

2,330

2,180

2,040

1,890

1,700

1,540

1,410

1,300

1,230

1,170

1,100

1,020

972

930

876

823

66,351

2,140

4.20

4.84

131,600

Aug.

 727 m

704

677

639

619

603 

588

583

573

598 

553

533

509

490

471

457

444

430

421

408

412

439

421

599

399

421

430

490

 485

16,466

531

1.04

1.20

32,660

Sept.

444

457

452

421

399

382

369

373 

369

357

390

395

378

365

353

345

337

329

S1&.

318

318

325

337

353

543

 843

710

629

603

608

-

12,620

427

0.837

0.93

25,430

Calendar year 1950 : Max 10,100 Mln ISO Mean 1,641 Cfsm 13.22 'in. 43.65 Ac -ft 1,188,000

Water year 1950-51 : Max 8,660 Mln 175 Mean 1,471 Cfsm 2.88 m. 39.16 Ac-ft 1,065,000

Peak discharge (base. 4.400 cfs).--May 12 (9:30 a.m.) 9, 

efs (8.75 ft)i June 16 (4:30 a.m.) 7,930 cfs (8.45 ft).

180 cfs (8.99 ft); May 24 (6 a.m.) 8,620

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of temperature records and records for sta, 

tlon near West Qlacler. 

Note. Stage-discharge relation affected by ice Jan. 5-28, Feb. 2-10, Mar. 4-8, 11-22.
FEND OREILLE RIVER BASIN 229

Middle Fork Flathead River near West Glacier, Mont.

Location.. Lat 48-29150", long. 114°00'30n , In SW^NE^ sec. 34, T. 32 N., R. 19 W., on left 

bank three-quarters of a mile downstream from McDonald Creek, 1? miles west of West 

0lacier, and 3f miles upstream from mouth.

Drainage area. 1.128 sq ml (revised).

Records available. October 1939 to September 1951. Published as "near Belton" 1939-47.

Gage. Water-stage recorder. Prior to Nov. 22, 1950, staff gage read once-daily, at same 

site and datum.

Average discharge. 12 years, 2,707 cfs.

Extremes. Maximum discharge during year, 20,100 cfs May 12 (gage height, 8.71 ft); minimum dally discharge, 500 cfs Jan. 30.

1939-51: Maximum discharge, 32,600 cfs May 23, 1948 (gage height, 12.40 ft, from 

floodmark); minimum observed, 232 cfs Jan. 21, 1940 (gage height, 1.08 ft).

Remarks. Records excellent except those below 2,500 cfs, which are good and those for 

periods of Ice effect and doubtful or no gage-height record, which are poor.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.4 

2.0 

2.5 

3.0 

3.5

535

1,020

1,580

2,330

3,320

4.0 

5.0 

6.0 

7.0 

8.5

4,510

7,300

10,500

13,900

19,300

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4 

5

6

7

8

9 

10

11

12 

13

14

15

16

17

18

19

20

21 

22

23 

24

25

26

27 

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

600 

600

550

600

750

800

800

900 

1,000

1,500

2,200 

2,200

2,150

2,200

2,300

2,250

2,150

2,300

4,000

5.200 

4,500

 3,790 

3,400

3,100

3,000

3,000 

2,950

2,950

4,000

4,610

70,900

2,287

2.03

2.34

140,600

Kov.

4.500 

57755

3,250

3,000 

3,100

3,200

3,150

2,950

2,700 

2,300

2,300

2,200 

2,050

1,950

1,900

1,800

1,750

1,700

1,600

1,500

1,500 

1,400

1.200 

1,260

1,410

1,570

1,710 

1,770

1,770

1,750

-

65,740

2,191

1.94

2.16

130,400

Dec.

1,680 

1,620

1,580

1,450 

1.200

1,200

1,330

1,400

1,340 

1,300

1,340

1,370 

 1,350

1,320

1,300

1,300

1,310

1,320

1,310

1,340

1,670 

1,980

2,980 

4,590

5.790

5,390

4,510 

3,910

3,470

3,140

2,920

67,710

2,184

1.94

2.24

134,300

Jan.

2.640 

2,460

2,370

2,110 

1,980

1,810

1,610

1,530

1,640 

1,550

1,460

1,390 

1,340

1,320

1,280

1,240

 1,220

1,200

1,150

1,140

1,130 

1,050

1,000 

1,050

1,000

1,100

750 

600

550

b500

555

41,720

1,346

1.19

1.37

82,750

Feb.

fgf

800

950 

950

950

900

900

1,200 

3,200

5.800

3)200

2,700

2,600

2,300

2,300

2,000

1,850

1,700

1,450 

1,350

1,300 

1,220

1,220

1,170

1,090 

1,050

_

_

-

47,000

1,679

1.49

1.55

93,220

Mar.

 1,040 

1,010

1,010

990 

700

600

550

550

700 

1,100

1,100

bl.150 

bl.100

1990

980

970

970

960

950

950

960 

950

940 

930

940

980

990 

970

960

970

1,000

28,960

934

0.828

0.95

57,440

Apr.

TTHo1

1)380

1,860 

2,570

3,060

3,210

3,430

3,450 

 3,120

2,940

2,960 

3,500

4,080

4,050

3,950

4,250

4,720

4,430

4,020

3,590 

3,280

3,040 

2,900

2,980

3,560

4,720 

6,090

6,940

8.520

-

108,780

3,626

3.21

3.58

215,800

May

8,580 

7,400

6,430

6.290 

7,620

11,000

13,800

14,300

14,700 

15,800

17,200

19.500 

17,200

14,000

11,600

10,600

11,600

14,000

13,700

12,600

12,400 

13,600

16,600 

17,900

15,600

12,800

11,900 

12,000

11,000

9,600

8,320

389,440

12,560

11.1

12.80

772,400

June

7,270 

6,630

6,490

6,630 

6,740

6,400

5,930

5,590

5.560 

 6,770

8,840

10,300 

10,800

12,400

15,200

16.200

14,200

12,200

'11,100

 10,100

9,090 

8,420

8,130 

9,860

10,200

9,480

9,320 

8,640

7,940

7,620

-

274,050

9,135

8.10

9.04

543,600

July

7,620 

8,130

8,200

9,030 

9,220

10.000

9,540

8,420

8,200 

7,940

7,400

7,090 

7,300

7,520

7,620

7,400

 7,150

6,860

6,570

5,930

5,340 

4,800

4,460 

4,300

4,120

3,930

3,680 

3,500

3,360

3,250

5.020

200,900

6,481

5.75

6.63

398,500

A-fo;.

2. 880 

2,700

2,600

2,530 

2,380

2,260

2,110

2,020

1,910 

1,840

1,870

1,870 

1,670

1,610

1,550

 1,500

1,450

1,430

1,400

1,380

1,370 

1,340

1,350 

1,380

1,350

1,330

1.510 

1,350

1,370

1,410

1,660

5A.180

1,748

1.55

1.79

10"', 500

Sept.

1,700 

1,960

1,910

1,750 

1,630

1,540

1,480

1,440

1,490 

1,430

1,490

1,490 

1,440

1,390

1,340

1,310

1,280

1,240

1,230

1,210

irfss

l)200 

1,210

1,740

 5.540

2,960 

2,580

2,440

2,470

-

50,090

1,670

1.48

1.65

99,350

Calendar year 1950: Max 23,600 Mln 400 Mean 3,994 Cfsm 3.54 In. 48.04 Ac-f ". 2,891,000

Water year 1950-51 : Max 19,300 Mln 500 Mean 3,834 Cfsm 3.40 In. 46.10 Ac-f; 2,776,000

(8.71 ft); May 24 (11:30 a.m.) 18,40C

Apr, 30 (8 p.m.) 9,440 cfs (5.67 ft); May 12 (2 p.m.) 20,100 cfs 

ofj (8.25 ft); June 16 (9 a.m.) 17,000 cfs (7.85 ft); July 6

(1 p.m.) 10,400 cfs (5.96 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Hote. Doubtful or no gage-height record Oct. 1-22, 24-30, Nov. 1-21, Jan. 22-29, Jan., 31 to Feb. 

0, Feb. 22, 23, Mar. 5-11; discharge estimated on basis of temperature records and records for other

Flathead River stations.
230 PEND OREILLE RIVER BASIN

South Fork Flathead River at Spotted Bear ranger station, near Hunjry Horse, Mont.

Location. Lat 47°55'20", long. 113°31'25", in SEiSW£ sec. 17, T. 25 N., R. 15 W., on left 

bank 600 ft south of Spotted Bear ranger station, 1,000 ft upstream fr-om Spotted Bear 

River, and 40 miles southeast of Hungry Horse.

Drainage area. 958 sq mi (revised).

Records available.--August 1948 to September 1951.

Page. Water-stage recorder.

Extremes. Maximum discharge during year, 14,200 cfs May 12 (gage height, 9.93 ft); minimum recorded discharge, 217 cfs Jan. 28 (gage height, 0.52 ft).

1948-51: Maximum discharge, 15,600 cfs June 21, 1950 (gage height, 10.54 ft); minimum daily, 160 cfs Pet. 5-8, 1949.

Flood of May-June 1948 reached a stage of 14.00 ft about May 22 (discharge, 22,000 

cfs, by slope-area determination of peak flow).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating tables, water year 1950-51, except periods of Ice effect (gage height. In

feet, and discharge, In cubic feet per second)

(Shifting-control method used May 13, 14)

Oct. 1 to May 12 May 13 to Sept. 30

0.7 

.9 

1.2 

1.5 

2.0

262

320

423

553

830

2.5 

3.0 

3.5 

4.0 

5.0

1,160

1,540

2,040

2,730

4,300

6.0 

8.0 

9.7

6,100

10,100

13,700

1.4 

2.0 

3.0 

4.0

506

800

1,440

2,440

5.C 

6.0 

7.C 

9.7

3,700

5,270

7,190

13,300

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3 

4

5

6

7

8 

9

10

11 

12

15

14

15

16

17

18

19

20

ei

22

25

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ao-ft

Oct.

427 

412

404 

401

416

497

525

515 

563

640

856 

928

940

940

980

1,030

1,020

1,150

1,550

1,560

1,570

1,510

1,250

1,170

1,100

1,070

1,040

1,050

1,440

2,040

2.150

50,284

977

1.02

1.16

60,070

Nov.

1.9QO 

1,690

»1,540 

1,500

1,600

1,630

1,580

1,480 

1,300

1,220

1,270 

1,210

1,080

1,090

1,010

986

973

960

845

758

862

856

770

782

914

1,050

1,100

1,120

1,100

1,100

-

35,254

1,175

1.23

1.37

69,950

Dec.

1,100 

1,050

980 

908

695

718

914

928 

836

800

812 

824

806

758

747

770

747

729

 712

747

806

824

1,010

1,470

1,770

1.790

1,630

1,520

1,400

1,510

1,240

51,551

1,011

1.06

1.22

62,180

Jan.

1.170 

1,100

1,080 

1,040

986

806

619

718 

862

782

718 

735

729

724

701

678

667

635

565

558

555

588

565

544

595

603

359

302

290

280

300

20,846

672

0.701

0.81

41,550

Feb.

525 

550

5.75 

400

450

450

*b450

b475 

b700

1,460

2.570 

2,050

1,590

1,360

1,310

1,200

1,020

975

908

856

850

764

712

690

712

684

650

619

_

_

-

24,713

883

0.922

0.96

49,020

Mar.

 614 

600

525 

475

425

400

400

400 

425

450

475 

500

525

550

550

575

525

475

500

475

472

465

447

447

459

484

497

476

472

497

544

15,122

488

0.509

0.59

29,990

Apr.

ft*

*1,050 

1,350

1,750

2,050

2,130

2,340 

2,350

2,080

1,900 

1,960

2,450

5,120

5,000

2,850

5,050

3,360

3,270

2,960

2,580

2,380

2,200

2,040

2,080

2,400

2,860

5,520

»4,570

5,570

-

74,176

2,473

2.58

2.88

147,100

May

4,950 

4,280

5.780 

3,890

5,150

7,610

8,970

9,270 

10,000

10,500

11,800 

15.700

11,400

8,640

6,950

6,530

6,910

»8,140

7,760

7,370

7,190

8,260

10,600

11,900

10,500

8,390

7,610

7,840

6,970

6,010

5,220

247,890

7,996

8.35

9.65

491,700

June

4,540 

4,060

5,840 

5,850

3,880

3,670

5,480

5.550 

3,410

4,130

5,340 

6,570

7,590

8,970

11,700

15.100

11,200

9,300

8,120

*7,390

6,590

5,840

5,480

6,370

6,250

5,860

6,150

5,950

5,370

4,980

-

186,310

6,210

6.48

7.25

369,500

Jily

4,710 

4,960

5,520 

6,050

5,950

6.290

5 , 930

5,300 

4,840

4,880

4,300 

3,980

4,060

4,300

4,410

4,190

5,950

5,760

5,590

5,240

2,890

2,610

2,400

2,250

2,160

»2,150

2,000

1,900

1,840

1,750

1.650

117,590

5,795

5.96

4.56

255.200

Aug.

1.560 

1,500

1,450 

1,580

1,540

1,260

1,200

1,150 

1,100

1,060

1,050 

1,010

970

928

894

850

811

780

750

725

705

685

700

750

755

705

670

685

725

822

850

29,780

961

1.00

1.15

59,070

Sept.

780 

775

750 

710

670

*630

600

586 

576

567

655 

695

680

645

620

600

581

562

544

544

534

544

553

572

690

1.080

994

922

904

904

-

20,467

682

0.712

0.79

40,600

Calendar year 1950 : Max 15,300 Mln 230 Mean 2,502 Cfsm 2.61 In. 55.45 Ac-ft 1,811,000

Water year 1950-51 : Max 15,700 Mln 280 Mean 2,284 Cfsm 2.58 In. 52.37 Ac-ft 1,654,000

Peak discharge (base. 7.500 efsk May 12 (10 a.m.) 14,200 cfs (9.95 ft)j May 24 (10 a.m.) 12,300 

ofs (9.28 ft); June 16 (7 a.m.) 15,700 cfs (9.89 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Jan. 29 to Feb. 6, Mar. 2-20; discharge estimated on basis of temperature records and records for South Fork Flathead River near Columbia Falls, Mont.
PEND OREILLE RIVER BASIK 831

Spotted Bear River near Hungry Horse, Mont.

Location. Lat 47°5S'40", long. 113°31'10", near center of sec. 17, T, 25 N., F. IS W., 

on left bank a third of a mile upstream from mouth, and 40 miles southeast of Hungry 

Horse.

Drainage area. 184 sq ml (revised).

Records available. October 1948 to September 1951;

Page. Water-stage recorder.

Extremes. Maximum discharge during year, 3,280 cfs May 12 (gage height, 5.77 ft); mlnlmum dally, 50 cfs Jan. 29-31.

1948-51: Maximum discharge, 3,860 cfs June 6, 1950 (gage height, 6.42 ft); minimum 

dally, 26 cfs Feb. 5-7, 1949.

Flood of May-June 1948 reached a stage of 7.24 ft about May 22 (discharge, 4,010 

cfs, by slope-area determination of peak flow).

Remarks. Records good except those for periods of Ice effect or no gage-height record, 

which are poor.

Rating table, water year 1950-51, except periods of Ice effect (gage 

height. In feet, and discharge. In cubic feet per second)

1.0 

1.2 

1.6 

2.0 

2.5

181

300

510

3.0 

4.0 

5.0 

5.6

795

1,560

2,490

3,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

AC-ft

Oct.

66

64

64

72

95

95

91

116

119

197

159

150

139

146

152 

150

189 

241

229

241

218 

202

184

176

176

171

179

262

m

5,161

166

0.902

1.04

10,240

Nov.

504

5§5

 238 

255

290

276

259

229

191

189

199

186

174

174

150

159 

150

148 

134

130

136

127 

110

127

141

159

164

162

162

159

5,524

184

1.00

1.12

10,960

Dec.

159

152

141 

141

154

blSO

b!45

blSO

b!40

blSO

134

134

130

123

125

123 

123

 Tl9

123

136

139 

171

265

332

324

290

265

241

229 

213

5,280

170

0.924

1.07

10,470

Jan.

189 

176

164

146

132

b!40

b!45

blSO

b!25

b!25

b!25

b!25

b!20

bllS 

bllO

b!05 

b95

b95

b95

blOO 

b95

b95

blOO

b!05

85

60

50

3,638

117

0.636

0.73

7,220

Feb.

65 

70

80

90

 b90

110

160

300

400

5So

250

235

220

200 

175

165 

155

150

140

130 

125

120

125

120

110

bllO

_

1

4,370

156

0.848

0.88

8,670

Mar.

 bllO

105

90 

80

75

12.

70

70

75

80

85

90

95

100

105

1Q5 

90

85 

90

90

85

80 

80

80

85

90

90

85

85

90 

100

2,710

87.4

0.475

0.55

5,380

Apr.

110

150

 218 

265

368

416

400

434

412

368

336

564

492

576

550

540 

615

723 

627

530

470

416 

384

364

588

492

657

840

 1,000

1.190

14,695

490

2.66

2.97

29,150

May

1,020

828

tift

1,140

1,830

2,130

2,140

2,290

2,400

2,750

5.090

575BO

1,780

1,460

1,420 

1,620

 1,900 

1,720

1,620

1,600

1,950 

2,570

2,630

2,150

1,700

1,580

1,680

1,400

1,190 

1,020

54,482

1,757

9.55

11.01

108, 100

June

881

814

828 

881

867

789

735

705

715

1,090

1,400

1,550

1,640

1,920

2,420

2.460 

2,080

1,690 

1,510

 1,360

1,210

1,140 

1,080

1,340

1,200

1,140

1,140

1,040

930

860

37,485

1,249

6.79

7.58

74,350

July

821

867

923

1.040

979

1,040

951

840

834

771

669

657

675

693

669

621 

588

545 

501

447

396

364 

336

320

304

 279

265

253

241

227 

215

18,331

591

3.21

3.70

36, 360

Aig.

207

555

189 

184

176

167

162

157

155

152

150

148

139

134

130

127 

121

116 

112

110

108

106 

110

116

112

104

101

106

112

136 

130

4,280

138

0.750

0.86

8,490

Sept.

114

125

125 

112

106

 99

93

91

91

87

106

106

102

97

91

89 

85

83

80

80

82 

85

95

194

352

729

199

202

199

3,677

123

0.668

0.75

7,290

Calendar year 1950: Max 3,390 Mln 40 Mean 470 Cfsm 2.55 In. 34.67 Ac-ft 340,100

Water year 1950-51: Max 3,090 Mln 50 Mean 437 Cfsm 2.38 In. 32.26 Ao-f' 316,700

Peak discharge fboee. 1.500 efa). May 12 (3 a.m.) 3,280 cfs (5.77 ft); Mar. 24 (3:30 a.m.) 2,820 

cfs (5.33 ftb June 16 (1:30 a.m.) 2,740 efs (5.25 ft).

 Discharge measurement made on this day.

b Stage-discharge relation affected by lee.

Hote.--No gage-height record Jan. 27 to Feb. 6, Feb. 8-27, Mar. 2 to Apr. 2; discharge estimated 

on basis of 2 discharge measurements, temperature records, and records for South Fork F'athead River 

at Spotted Bear ranger station near Hungry Horse, Mont.

288995 O - 54 - 16
232 PEND OREILLE RIVER BASIN

Twin Creek near Hungry Horse, Mont.

Location.--Lat 47 <> 59'10" > long. 113°33'30", In Ei sec. 25, T. 26 N., R. 16 W., on left 

bank 0.1 mile (revised) upstream from mouth, 300 ft upstream from roa^ bridge, and 

36 miles southeast of Hungry Horse.

Drainage area. 47.0 sq ml (revised).

Records available. August 1948 to September 1951.

Sage. Water-stage recorder.

Extremes. Maximum discharge during year, 1,270 cfs May 12 (gage height, 7.19 ft); minimum recorded, 13 cfs Oct. 1 (gage height, 2.07 ft).

1948-51: Maximum discharge, 1,550 cfs May 14, 1950 (gage height, 7.51 ft); minimum dally, 5 cfs Jan. 11, Jan. 20 to Feb. 6, Feb. 13, 14, 1949.

Flood of May-June 1948 reached a stage of 8.1 ft about May 22 (discharge, 2,410 

cfs, by slope-area determination of peak flow).

Remarks.--Records good except those for periods of Ice effect or no gage-height record, 

which are poor.

Rating table, water year 1950-51, except periods of Ice effect (gage 

height. In feet, and discharge. In cubic feet per second)

2.0 

2.2 

2.4 

2.7 

3.0 

3.5

18

30

52

80

140

4.0 

4.5 

5.0 

6.0 

7.0

210

294

400

690

1,140

Discharge, In cubic feet per second, water year October 1950 to Septenber 1951

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

13

1?

14

14

16

20

18

19

23

33

79 

64

56

49

52

50

49

67

101

110

115

101

90

78

72

71

69

72

135 m

2,000

64.5

1.37

1.58

3,970

Nov.

125

101

*88

103

144

136

128

120

110

100

90 

80

72

68

64

58

54

52

50

48

46

44

4044"

50

52

54

54

54

54

2,283

76.1

1.62

1.81

4,530

Dec.

54

52

50

50

48

48

46

44

ii

44

46 

48

48

46

46

46

46

48

*52

64

140

180

280

400

39?)

280

250

190

160

130 

110

3,478

112

2.38

2.74

6,900

Jan.

90

80

72

68

64

60

56

54

52

50

48 

46

44

44

42

40

40

38

38

36

36

36

36

34

34

34

28

22

20

19

1,381

44.5

0.947

1.09

2,740

Feb.

55" 22

24

26

28

*b30

49

73

161

215

m148

121

98

87

77

71

66

63

59

56

56

56

50

48

*46

46

_

-

2,251

80.4

1.71

1.78

4,460

Mar.

46

46

46

46

40

36

34

b32

32

32

34 

34

34

34

34

34

32

32

32

32

32

32

31

ST

34

38

38

37

38

46 

59.

1,138

36.7

0.781

0.90

2,260

Apr.

115" 78

*165

221

268

264

268

281

242

198

188 

234

331

325

298

302

361

383

292

234

192

167

156

172

221

296

386

441

477

516

8,072

269

5.72

I 6.38

16,010

May

414

319

285

339

516

748

785

733

773

804

872 

1.090

708

508

414

419

*505

572

519

502

536

653

781

715

527

431

441

456

365

309 

266

17,305

558

11.9

13.72

34,320

June

234

228

245

269

266

236

212

202

242

327

393 

398

414

464

541

488

388

327

298

»269

264

247

240

283

256

244

234

212

194

180

8,802

293

6.23

6.95

17,460

Jvly

166

166

170

176

170

198

169

145

148

141

127 

121

116

113

105

97

90

84

76

69

64

58

55

51

*50

48

45

43

4240- 

38

3,181

103

2.19

2.52

6.310

Aug.

21

36

35

34

31

29

29

28

29

28

28 

29

27

26

25

24

23

22

21

21

20

25

21

20

21

20

20

22

21

25 

24

796

25.7

0.547

0.63

1,580

Sept.

22

24

23

22

20

*18

18

19

18

17

23

21

19

18

17

17

17

16

16

15.

15

16

16

16

22

12.

38

34

32

28

640

21.3

0.453

0.51

1,270

Calendar year 1950: Max 1,240 Hln 13 Mean 156 Cfsm 3.32 In. 44.96 Ac-ft 112,700

Water year 1950-51: Max 1,090 Mln 13 Mean 141 Cfsm 3.00 In. 40.61 Ac-ft 101,800

Peak dlsohanw (base. 480 cfs). A

cfs'fT.H ftJjTlay SI (ll:S6 p.m.) e

pr. 30 (5:30 a.m.) 542 cfs (5.54 ft): \May 12 (4:30 a.m.) 1,270 

56 ofs (6.39 ft)) June 15 (9:30 p.m.) 622 ofs (5.80 ft).

* Dlacharge measurement made on this day. 

b Stage-discharge relation affected by lee.

Note. He gage-height record Hov. 7 to Dee. IB, Dee. 21 to Feb. 5, Mar. 3-7, F-22, Sept. 2-5j discharge estimated on basis of |te«perature records and records for stations on nerrby streams.
PEND OREILLE RIVER BASIN 233

Lower Twin Creek near Hungry Horse, Mont.

Location. Lat 47 0 59'40", long. 113°33'20", in SE$ sec. 24, T. 26 N., R. 16 W., on left 

bank half a mile upstream from mouth and 35 miles southeast of Hungry Horse.

Drainage area.--22.4 sq mi (revised).

Records available. August 1948 to September 1951.

Page. Water-stage recorder.

Extremes. Maximum discharge during year, 457 cfs May 12 (gage height, 3.50 ft); minimum, 

9.6 cfs Oct. 3, 4 (gage height, 1.14 ft).

1948-51: Maximum discharge, 565 cfs June 5, 1950 (gage height, 3.86 ft); minimum 

daily, 2 cfs Jan. 18 to Feb. 10, 1949.

Flood of May-June 1948 reached a stage of 5.25 ft about May 22 (discharg-s, 1,200 

cfs, by slope-area determination of peak flow).

Remarks. Records good except those for periods of ice effect or no gage-heigh*. record, 

which are poor.

Rating tables. Mater year 1950-51, 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

1.1 

1.3 

1.5 

l.S 

2.2 

2.7

S

17

30

59

116

218

1.1 

1.3 

1.5 

l.S

2.1 

2.5 

3.0 

3.4

114

198

322

429

Discharge, in cubic feet per second, water year October 1950 to September 19~>1

Day

1

2

3 

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

total

Mean

Cfsm

In.

Ac-ft

Oct.

10

10

H10

11

101111

13

23

37 

35

32

36

35

34

42

48

57

69

66

63

57

54

54

51

49

71

85

It

1,187.2

38.3

1.71

1.97

2,350

Nov.

78

69

*64 

66

21

79 

75

66

57

57

54

48 

45

42

38

36

36

33

31

30

29

27

21

26

30

35

36

36

38

37

-

1,399

46.6

2.08

2.32

2,770

Dec.

36

35

34 

32

b31

b30 

29

28

26

27

29

30 

30

29

29

29

30

31

 32

38

52

61

113

215

206

150

118

96

79

71

63

1,837

59.3

2.65

3.06

3,640

Jan.

56

51

48 

44

40

37 

b35

32

33

31

29

28 

27

26

26

25

24

23

b22

21

b21

21

20

i 19

20

22

b!6

b!2

b!2

b!2

b!2

845

27.3

1.22

1.41

1,680

Feb.

b!3_

a!3

al4 

a!6

a!7

*17 

18

21

38

88

126

107 

80

66

57

50

44

41

38

36

33

b30

b29

b28

27

26

*b25

b25

_

-

-

1,123

40.1

1.79

1.86

2,230

Mar.

24

b23

b23 

23

b20

bl8 

b!6

b!5

b!6

b!7

b!6

b!7 

blS

bl9

20

19

18

blS

18

IS

18

IS

18

IS

18

20

20

20

20

22

21

595

19.2

0.857

0.99

1,180

Apr.

33

42

*5S 

81

107

118 

122

124

118

106

99

102 

129

153

143

139

149

162

141

118

102

91

S3

84

97

122

157

 193

227

241

3,641

121

5.40

6.02

7,220

May

205

160

m229

299 

348

343

367

370

383

301

241

203

200

 229

258

246

241

248

284

325

312

251

229

232

234

193

160

141

7,933

256

11.4

13.14

15,730

June

124

122

131 

141

139

124 

112

107

122

164

203

210 

215

241

216

248

205

175

155

*139

135

129

129

149

135

133

133

118

107

101

4,623

154

6.87

7.66

9,170

July

94

97

104 

112

109

m91

89

86

78

78 

81

81

78

74

67

64

59

53

47

43

41

39

 38

37

34

33

33

30

28

2,138

69.0

3.08

3.55

4,240

A',«.

28

27

25 

25

25

24 

23

22

22

20

20

20 

20

20

19

IS

18

IS

17

16

16

16

16

16

16

15

16

15

15

16

16

600

19.4

0.866

1.00

1,190

Sept.

16

16

16 

16

*16

16 

15

15

15

15

16

15 

15

15

15

15

15

15

15

15

il

14

14

14

15

16

15

16

17

11

460

15.3

0.683

0.76

912

Calendar year 1950: Max 525 Min 9.6 Mean 87.2 Cfsm 3.89 In. 52.92 Ac-ft 63,140

Water year 1950-51 : Max 407 Hln 9.6 Mean 72.3 Cfam 3.23 In. 43.74 Ac-ft 52,310

Peak discharge (base. 300 cfs).--May 12 (5 a.m.) 457 cfs (3.50 ft)j May 24 (3 a.m.) 345 cfs (3.09 

ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of temperature records.

b Stage-discharge relation affected by Ice.
234 PEND OREILLB RIVER BASIN

Sullivan Creek near Hungry Horse, Mont.

Location. Lat 48"01'45", long. 113°42'10", In Wi sec. 12, T. 26 N., R. 17 W., on left 

bank a quarter of a mile downstream from Qulntonkon Creek, 3 miles upstream from mouth, 

and 30 miles southeast of Hungry Horse.

Drainage area. 71.3 sq ml (revised).

Records available. September 1948 to September 1951.

Gage. Water-stage recorder.

Extremes.- -Maximum discharge during year, 1.400 cfs May 12 (gage height, 4.34 ft); minimum, 30 cfs Oct. 3 (gage height, 1.24 ft).

1948-51: Maximum discharge, 1,700 cfs May 12, 1949 (gage height, 4.73 ft); minimum 

dally, 17 cfs Feb. 14, 1949.

Flood of May-June 1948 reached a discharge of 2,280 cfs on about Kay 22, by slopearea determination of peak flow.

Remarks. Records good except those for periods of Ice effect, which are poor.

Rating table, water year 1950-51, except periods of Ice effect (gage

height, In feet, and discharge, In cubic feet per second)

(Shifting-control method used June 15-30)

1.2

1.4 

1.7 

2.0 

2.5

26

45

87

147

288

3.0 

3.5 

4.0 

4.3

525

810

1,150

1,380

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

31 

31

if45

76 

55

51

55

68

105

92

85

79

96

89

87

138

177

199

242

215

194

172

156

163

154

158

420

505 415"

4,414

142

1.99

2.29

8,760

Nov.

326 

 262

236 

236

262

251 

239

215

194

197

177

161 

152

143

134

127

123

119

111

109

101

100

140

163

163

158

154

149

-

5,101

170

2.38

2.66

10,120

Dec.

145 

138

132 

117

b90

b75~

b85

b95

100

107

121 

119

113

109

109

129

129

134

 175

236

248

580

940

830

60S

455

352

288

251

223

7,308

236

3.31

3.82

14,500

Jan.

|§|

180 

168

154

143 

b!20

blOS

blOS

110

115

109 

105

101

100

96

94

87

84

85

84

82

77

76

85

92

b50

b40

b4Q

3,148

102

1.43

1.65

6,240

Feb.

bMb60 

b70

b75

b80 

b85

*b90

b200

515

470

344 

266

220

194

172

156

143

132

125

115

109

105

109

100

89

b80

*b75

_

_

-

4,279

153

2.15

2.24

8,490

Mar.

b70

b70 

b70

b65

b60 

b55

bSO

b5O

b50

b55

b60 

b60

b60

63

63

63

61

53

52

52

51

50

50

52

57

57

55

55

61

70

1,815

58.5

0.820

0.95

3,600

Apr.

129

170 

215

262

281 

292

322

288

251

236

258 

344

425

390

362

390

430

370

313

266

239

220

220

242

313

415

495

624

£79

9,533

318

4.46

4.98

18,910

May

580 

475

m668

982 

1,120

1,090

1,140

1,180

1,230

1.320 

1,060

810

674

640

726

 862

792

738

738

882

1,090

1,090

914

792

792

804

668

564

475

25,766

831

11.7

13.49

51,110

June

415 

395

430

460

450

400 

570

344

366

490

635

679 

732

830

154

901

738

635

586

515

 475

455

445

574

505

480

465

410

362

330

-

15,826

528

7.41

8.27

31,390

Jvly

313 

322

330 

362

357

m284

270

255

226

212

207

199

192

180

170

161

149

138

129

121

115

109

103

100

 92

89

85

82

21

6.154

199

2.79

3.22

12,210

Aug.

76 

73

68

67

65

61 

60

60

58

57

60

60 

56

56

52

50

49

46

45

43

42

42

43

45

46

43

46

52

47

82

71

1,721

55.5

0.778

0.90

3,410

Sept.

56 

63

53 

50

 47

45 

43

44

44

42

*

61

56

52

50

47

44

42

41

39

40

40

44

57

92

70

61

57

67

-

1,612

53.7

0.753

0.84

3,200

Calendar year 1950: Max 1,4SO Mln 30 Mean 285 Cfsm 4.00 In. 54.27 Ac-ft 206,500

Water year 1950-51: Max 1,320 Mln 30 Mean 237 Cfsm 3.32 In. 45.31 Ac-ft 171,900

Peak dlscharoe (base. 700 cfs). De

ofs {4.34 ft); May 24 (1 a.m.) 1,160

c. 24 (2 a.m.) 1,020 cfs (3.82 ft); May 12 (3:30 a.m.) 1,400 

cfs (4.01 ft); June 15 (10 p.m.) 1,040 cfs (3.95 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
PEND OREILLE RIVER BASIN 235

Graves Creek near Hungry Horse, Mont.

Location. Lat 48»07'50", long. 113°46'10", In Wj sec. 4, T. 27 N., R. 17 W., on left 

bank 2 miles upstream from mouth and 22 miles southeast of Hungry Horse.

Drainage area. 33.0 sq mi.

Records available. August 1948 to September 1951.

Page. Water-stage recorder.

Extremes. Maximum discharge during year, 907 cfs June 16 (gage height, 4.33 ft); minimum 

dally, 20 cfs Jan. 30.

1948-51: Maximum discharge, 1,520 cfs June 22, 1950 (gage height, 5.70 ft); minimum dally, 10 cfs during several periods In January and February 1949.

Flood of May-June 1948 reached a stage of 5.33 ft about May 22 (discharge, 1,440 cfs, 

by slope-area determination of peak flow).

'ks. Records good except those for periods of ice effect no gage-height record, 

se for period Sept. 18-30, which are fair.

Rating table, water year 1950-51, except periods of Ice effect (gage

height, In feet, and discharge. In cubic feet per second)

(Shifting-control method uaed June 12 to July 6)

1.0 

1.4 

1.7 

2.0 

2.5

22

52

84

123

218

3.0 

3.5 

4.0 

4.3

343

504

708

839

Discharge, In cubic feet per second, water year October 195O to September 19?1

Day

1

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

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

26

26

26

27 

34

59 

49

45

47

55

81

82

80

74

77

71

68

84

110

168

253

230

190

157

136

136

122

117

163

243

255

3,291

106

3.21

3.70

6,530

NOV.

218

 If?

157

148 

146

146 

139

125

109

108

105

96

86

83

76

74

72

71

64

61

61

59

§5

62

76

80

82

83

82

83

-

2,987

99.6

3.02

3.37

5,920

Dec.

81

76

73

b65 

b60

63 

66

65

57

55

56

57

57

54

Is

57

68

72

75

 89

133

152

303

527

45T

338

255

207

166

148

129

4,110

133

4.03

4.65

8,150

Jan.

116

IDS

100

99 

86

61 

b75

70

68

63

59

56

56

55

55

51

50

48

b*7

46

44

45

44

42

48

59

b40

b30

a25

a£0

a30

1,815

58.5

1.77

2.04

3,600

Feb.

a35

a40

a45

aSO 

a60

b70 

82

83

205

321

282

207

157

128

105

90

80

73

65

61

a60

aSS

aSS

a50

aSO

a45

a45

 43

_

-

2,645

94.5

2.86

2.98

5,250

Mar.

42

b40

38

b35 

b35

al§

a30

a30

a30

a30

a35

39

37

40

*4

40

37

36

34

32

32

31

31

31

32

33

32

31

33

35

1,064

34.3

1.04

1.20

2,110

Apr.

ifi

46

60

 80 

100

115 

126

141

141

129

122

123

144

176

178

170

172

178

176

155

139

123

113

109

115

133

168

205

270

511

4,276

143

4.33

4.83

8,460

May

306

265

227

27?

399 

515

538

578

623

661

751

598

448

358

327

 363

497

479

441

428

497

657

695

570

479

482

497

424

366

316

14,271

460

13.9

16.03

28,310

June

278

268

290

319 

327

300 

275

248

fit

335

461

527

582

695

235

83O

686

582

523

441

 399

381

378

512

461

415

405

384

343

324

-

13,066

436

13.2

14.73

25,920

July

306

303

324

375 

418

ft

330

313

290

260

241

236

239

234

225

211

194

178

155

139

123

110

102

96

89

 85

80

77

73

Si

6,686

216

6.55

7.55

13,260

A>lg.

65

62

58

56 

52

49 

48

47

47

44

49

52

45

45

41

38

36

34

33

32

31

l°r

30

32

32

30

33

37

34

67

Ii

1,365

44.0

1.33

1.53

2,710

Sept.

64

70

62

57

 52

48 

46

47

43

41

76.

74

68

63

59

55

51

49

48

44

43

43

42

42

47

48

46

43

42

54

-

1,567

52.2

1.58

1.76

3,110

Calendar year 1950: Max 1,480 Mln 2O Mean 179 Cfsm 5.42 In. 73.43 Ac-ft 129,200

Water year 1950-51: Max 835 Min 2O Mean 157 Cfsm 4.76 In. 64.37 Ac-ft 113,400

Peak discharge (base. 500 cfs). IX

782 c?s t*.lTftTi Hay 24(3 a?m. ) 7

ic. 24 (7 to 8 a.m.) 562 cfs (3.65 ft); May 12 (8 to 10 a.m.) 

58 cfs (4.08 ft)) June 16 (!2t3O to 3:30 a.m.) 907 c's (4.33 ft);

June 24 (11 a.m. to 2 p.m.) 534 cfs (3.44 ft).

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of temperature records and recor-ls for 

Sullivan Creek near Hungry Horse.

b Stage-discharge relation affected by ice.
236 PEND OREILLE RIVER BASIN

South Fork Flathead River near Columbia Falls, Mont.

Location. Lat 48°22'10", long. 1140 02'40", in NE^NE^ sec. 17, T, 30 N., R. 19 W., on 

right bank 2 miles upstream from mouth, 3 miles downstream from Hungry Horse Dam, and 

9 miles east of Columbia Falls.

Drainage area. 1.667 sq. ml (revised).

Records rds available. September 1910 to September 1916, April 1923 to September 1951. 

Sage. Water-stage recorder. Datum of gage is 3,030.3 ft above mean sea level, datum of 

T929 (levels by Corps of Engineers). September 1910 to September 1916, chain gage 

and Apr. 23, 1923, to Sept. 30, 1928, water-stage recorder at site l£ miles downstream 

at different datum. Oct. 1, 1928, to'Sept. 30, 1929, at present site at datum 2.00 ft 

higher and Oct. 1, 1929, to Sept. 30, 1948, at present site at datum 1.00 ft higher 

than present datum.

Average discharge. 22 years (1928-32, 1933-51), 3,237 cfs.

Extremes . Maximum discharge during year, 25,500 cfs May 12 (gage height, 15.73 ft); minimum observed, 7.3 cfs Sept. 24 (gage height, 0.52 ft) result of storage in Hungry Horse 

Reservoir.

1910-16, 1923-51: Maximum discharge observed, 46,200 cfs June 19, 1916 (gage height, 

16.6 ft, site and datum then in use), from rating curve extended above 20,000 cfs; 

minimum observed, that of Sept. 24, 1951.

Remarks. Records excellent except those for periods of ice effect and ttose for period 

Sept. 21-30, which are fair. Flow regulated by Hungry Horse Dam begirning Sept. 21, 

1951, when diversion tunnel was closed.

Rating table, water year 1950-51, except periods of loe effect (g^se 

height, In feet, and discharge, In cubic feet per second)

0.5 6 2.5 575 8.0 6.68O

.6 12 3.0 840 10. O 1O.30O

.8 30 3.5 1,180 13.0 17,300

l.O 65 4.0 1,59O 15.4 24.5OO

1.5 190 5.0 2,640

2.0 365 6.O 3,880

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

3

4

5

6

7

S

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

Ac-f1

(t)

Oct.

780 

769 

747

742.

769

g942

g995

g954

g988

1,060

1,410 

 1,560 

1,550

1,530

1,620

1,640

1,630

1,830

2,360

3,000

3,410

3,130

2.85O 

2,580

2,380

2,310

2,210

2,1BO

3,000

4,550

4.810

60,286

1,945

L19.600

O

Nov.

4.320 

3,840 

3,42O

3,180

3,310

3,460

3,330

3,100

2,700

2,490

2,490 

2,400 

2,210

2,070

 1,990

1,830

1,850

1,820

1,710

1,540

1,570

1,57O

1.440 

1,490

1,680

1,920

2,050

2,080

2,O60

2,O4O

-

71,O1O

2,367

140,800

O

Dec.

2,010 

1,980 

1,890

1,780

1,610

bl.550

bl,40O

bl,850

bl,750

bl,600

1,580 

1,600 

1,570

1,510

1,450

1,47O

1,560

 1,610

1,580

1,800

2,490

2,710

4,180 

6,72O

6.890

6,240

5,260

4,560

3,960

3,580

3,260

82,80O

2,671

164,200

O

Jan.

3_.OOQ 

2,760 

2,650

2,490

2,190

2,070

1,930

bl,900

bl,950

1,970

1,750 

1,670 

1,630

1,610

1,560

1,530

 1,470

1,460

1,440

1,430

1,37O

1,400

1.38O 

1,380

1,430

1.41O

967

b75O

b700

b650

b75O

50,647

1,634

100,500

0

Feb.

b800 

b90O 

bl,000

bl.100

 bl,200

bl,3OO

bl,300

bl,300

bl,800

b3,50O

5.570 

5,220 

4,240

3,590

3,270

3.O3O

2,670

2,450

2,310

2,140

2,000

1,840

1,68O 

1,650

1,640

1,57O

1,430

1,39O

_

-

61,890

2,210

122,800

O

Mar.

1,240

1,200

g936

gSl6

b750

bSOO

gl,020

1,160

gl.180 

*gl,180 

1,22O

1,200

1,230

1,270

1,160

1,110

1,120

1,120

1.09O

1,O9O

1,060 

1.O1O

1,010

1,060

1,100

1,060

1,030

1,090

1,230

34,312

1.1O7

68,060

0

Apr.

1,^410 

1,740 

2,350

3,110

4,140

4,870

5,150

5,510

5,480

5,020

4,640 

4,670 

5,470

6,560

6,600

6,31O

»6,47O

6,96O

6,82O

6,210

5,580

5,080

4.7OO 

4,45O

4,500

5,O9O

6,100

7,17O

8,740

10.700

-

161,600

5,387

320,500

O

May

1O,50O 

8,860 

7.740

7,790

1O,OOO

14, 100

17,400

>17,800

18,70O

19,600

21,200 

24.300 

23,200

17,700

14,100

12,6OO

13,100

15,2OO

15.4OO

14,3OO

13,800

15,200

18,800 

21,500

19,900

16,100

14,5OO

14,500

13,400

11,600

»10,000

472,890

15,25O

938,000

0

June

8,700 

7,880 

7,620

7,72O

7,840

7.57O

7,110

6,74O

.6^680

7,70O

9,900 

11,9OO 

13,300

15,200

19,000

21.700

19,800

16,4OO

14,300

12,800

11,400

1O.40O

9,76O 

11,100

"11,200

10,200

10,200

10,000

9,220

8,580

-

331,920

11,060

558,400

0

July

8,060 

7,980 

8,560

9,400

9,7SO

10. OOP

9,76O

8,840

8,130

7,930

7,380 

6,78O 

6,740

6,86O

6,98O

6,7SO

6,42O

 6,11O

5,82O

5,400

4,9OO

4,410

4,040 

3,780

3,590

3,490

3,300

3,090

2,970

2,830

Li660

192,770

6,218

382,400

O

Aug.

2.520 

2,430 

2,290

2,200

2,100

1,980

1,880

1,800

1,730

1,680

1,640 

1,660 

1,54O

1,490

 1,430

1,370

1,310

1,270

1,220

1,180

1,140

1.12O

1.110 

17160

1,200

1,140

1,120

1,140

1,150

1,390

1,59O

47,98O

1,548

95,170

0

Sept.

1,410 

1.420 

1,355

1,250

1.17O

1,100

1,060

1,030

1,010

981

1,210 

1,230 

1,190

1,14O

1,O9O

1,040

1,000

974

942

824

396

 g25

gS.O 

glil gll

g!3

g9.9

g9.2

g8.6

gll

-

22.92O.O

764

45,460

+21,650

Adjusted for change in reservoir contents

Mean

Cfsra

In.

Ae-ft

1,945

1.17

1.35

119,600

2,387

1.42

1.58

140,800

2,671

1.60

1.84

164,200

1,634

0,98O

1.13

fW>500

2,210

1.33

1.38

122,800

1,107

0.664

0.77

68,060

5,387

3.23

3.60

320,500

15,250

9.15

10.55

938,000

11,060

6.63

7.4O

658,400

6,218

3.73

4.30

382,400

1,548

0.929

1.07

95,170

1,128

0.677

0.76

67,110

Calendar year 195O: 

Water year 195O-51:

Max 29,000 

Max 24,300

Mln 65O 

Mln 7.3

Mean 4,906 

Mean 4,359

Ac -ft 

Ac -ft

3,552,000 

3,156,000

Adjusted

Calendar year 195O: 

Water year 1950-51:

Mean 4,905 

Mean 4,389

Cfsm 2.94 

Cfsm 2.63

In. 39.98 

In. 35.73

Ac -ft 

Ac-ft

3,552,000 

3,178,000

 Discharge measurement made on thl* day.

t Change In contents, In acre-feet. In Hungry Horse Reservoirs furnished by Bureau of Reclamation.

b Stage-discharge relation affected by Ice.

g Computed from staff-gage readings.
FEND OREILLE RIVER BASIN 237

Plathead River at Columbia Palls, Mont.

Location. La t 48°21 1 50", long. 114°11'10", in NWiSEi (revised) sec. 17, T. 30 N., R. 20

 W. , on right bank 200 ft downstream from highway bridge at Columbia Palls end. 5 miles

downstream from South Pork. 

Drainage area. 4. 464 sq ml (revised). 

Records available. May 1922 to September 1923 (fragmentary), June 1928 to September 1951.

* sT Water -stage recorder. Datum of gags Is 2,978.00 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Prior to Nov. 14, 1928, wire-weight gage on bridge 200 ft upstream at dstum 0.19 ft 

higher .

Average discharge. 23 years (1928-51), 9,112 cfs.

Extremes . Maximum discharge during year, 69,000 cfs May 12 (gage height, 15.50 ft); mlnlmum dally, 1,900 cfs Jan. 30.

1922-23, 1928-51: Maximum discharge, 102,000 cfs May 23, 1948 (gage height, 19.08 

ft); minimum, 798 cfs Dec. 8, 1929 (gage height, -0.08 ft).

Maximum stage known, 22.7 ft In June 1894, from floodmarks (discharge, 135,000 cfs, 

from rating curve extended above 85,000 cfs by logarithmic plotting). 

Remarks . Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. South Pork Plathead River which contributes about one-third 

of flow completely regulated beginning Sept. 21, 1951, when diversion tunnel at Hungry 

Horse Dam was closed. 

Revisions (water years ). ~W 1092: 1923.

Rating table, water year 1950-51, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

1.5 

2.0 

3.0 

4.0 

5.0 

6.0

2,070

2,920

4,510

6,580

9,090

12,200

8.0

10.0

12.0

14.0

15.2

20,000

30,200

42,700

57,200

66,600

Discharge, In cubic feet per second, water year October 1950 to September 1911

Day

1 

2 

3

4

5

6 

7

8

9

10

11

12 

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

te-ft

(t)

Oct.

2,470 

2,410 

2,360

2.340 

2,420

2,850 

3,040

2,980

3,110

3,440

4,450

5,340 

5,360

5,380

5,630

5,830 

5,720

5,960

7,010

10,100

12,900

11,500

 10,100

8,990

8,180

7,980

8,000 

7,920

8,880

11,800

13.200

197,650

6,376

392,000

0

Nov.

12.200 

10,800 

9,710

9,040 

9,200

9,570 

9,310

8,700

7,680

7,010

7,010

6,750 

6,320

6,030

 5,850

5,590 

5,480

5,340

5,020

4,700

4,830

4,740

4.190

4,360

4,910

5,460

5,920 

5,990

5,920

5,810

-

203,440

6,781

403,500

0

Dec.

5,590 

5,280 

5,280

4,870 

4,110

-SB

,080

,890

,660

,700

,800 

,740

,590

,430

,420 

,570

,680

,570

,800

5,830

6,510

8,860

13,800

16.000

15,700

13,600 

 11,800

10,300

9,450

8,880

215,070

6,938

426,600

0

Jan.

8,180 

7,500 

7,230

6,700 

6,330

5,990 

5,200

5,060

5,480

5,420

5,120

4,950 

4,830

4,720

4,660

4,550 

4,400

4,270

4,020

3,900

3,850

3,850

3,800

3,900

 3,780

4,110

2,660 

2,210

b2,000

bl.900

a2,000

142,620

4,601

282,900

0

Feb.

a2.200 

a2,400 

b3,100

b3,400 

b3,500

»b3,500 

3,430

3,480

4,510

8,910

12.700

12,100 

10,400

9,260

8,700

8,340 

7,620

6,960

6,580

6,180

5,830

5,400

5,060

4,890

4,910

4,780

4,380 

4,210

-

-

166,730

5,955

330,700

0

Mar.

4.230 

4,070 

3,850

3,650 

2,760

2,420 

b2.300

b2,400

b2,800

a3,500

a3, 500

b3,600 

b3,600

b3,600

b3,500

bS,800 

b3,400

b3,300

b3,300

b3,300

bS.100

b3,200

 bS.100

b3,000

3,030

3,200

3,300 

3,140

3,090

3,140

3,380

101,560

3,276

201,400

0

Apr.

3.730 

4,300 

5,380

6,890 

8,910

10,600 

11,700

12,800

13,000

11,800

10,900

11,000 

13,100

15,700

16,000

15,400 

16,000

17,400

16,600

15,200

13,600

12,400

 11,400

10,900

11,200

12,800

15,900 

19,800

24,000

29.400

-

397,810

13,260

789,000

0

May

31,700 

27,400 

23,400

22.700 

27,300

38,400 

49,200

 51,400

52,300

55,000

59,100

66.300 

63,500

51,600

42,000

37,200 

39,100

47,200

48,400

43,500

41,400

44,400

53,800

60,800

57,000

46,200

40,900 

40,200

37,200

32,400

28,300

«, 359. 3

43,850

*2,696

0

June

24,800 

22,800 

22,200

22,700 

23,100

22,000 

20,500

19,100

18.600

21,306

27,700

33,600 

36,800

41,400

50,300

57.200 

51,600

43,800

38,900

35,400

31,900

29,100

27,700

32,700

 35,900

32,200

31,200 

29,300

26,700

25,000

-

935,500

31,180

*1,856

0

July

24,400 

25,100 

25,800

28,200 

30,100

31.300 

30,200

27,200

25,600

24,800

22,900

21,300 

21,400

21,900

22,300

 21,800 

20,800

20,000

19,200

17,800

16,100

14,600

13,500

12,800

12,400

12,000

11,300 

10,700

10,400

10,100

9.510

615,510

19,860

*1,221

0

Hug.

9.090 

8,730 

8,410

8,180 

7,880

7,480 

7,160

e.eoo

P,540

f,320

e,i2o

f,230 

E,940

E,720

 E.480

5,260 

5,060

4,890

4,740

4,620

4,470

4,360

4,320

4,510

4,530

4,300

4.250 

4T450

4,450

5-000

6,270

181,510

5,855

360-000

0

Sept.

6,490 

7.160 

7,040

6,560 

6,100

5,720 

5,400

5,180

5,240

5,O40

5,320

5,360 

5,140

4,910

4,660

4,450 

4,280

4,120

4,000

3,800

3,420

2.850

2,850

 3,040

3,700

6,630

6,840 

6,050

5,630

5,810

-

152,790

5,093

303,100

+21,650

Adjusted for change In reservoir contents

Mean

Cfsm

In.

Ao-ft

6,376

1.43

1.65

392,000

6,781

1.52

1.70

403,500

6,938

1.55

1.79

426,600

4,601

1.03

1.19

282,900

5,955

1.33

1.38

330,700

3,276

0.734

0.85

201,400

13,260

2.97

3.31

789,000

43,850

9.82

11.32

2,696

31,180

6.98

7.79

1,856

19,860

4.45

5.13

1,221

5,855

1.31

1.51

360,000

5,458

1.22

1.36

324,750

Calendar year 1950: 

Hater year 1950-51 :

Max 73,600 

Max 66,300

Mln 1,900 

Mln 1,900

Mean 13,060 

Mean 12,790

Ac -ft 

Ac -ft

9,453 

9,262

,000 

,000

Adjusted

Calendar year 1950: 

Hater year 1950-51:

Mean 

Mean

13, 

12,

060 

820

Cfsm 

Cfsm

2.93 

2.87

In. 39. 

In. 38.

,74 

,98

Ac -ft 

Ac -ft

9,453 

9,284

,000 

,000

* Discharge measurement made on this day.

t Change In contents, in acre-feet, In Hungry Horse Reservoir; furnished by Bureau of Reclamation.

* Expressed In thousands.

a No gage-height record; discharge estimated on basis of records for other Plathead River stations.

b Stage-discharge relation affected by Ice.
238

PEND OREILLE RIVER BASIN

Swan River near Blgfork, Mont.

Location (revised). Lat 48°01'30", long. 113°58'40", In SE&SW£ sec. 11, T. 26 N., R. 19 W., 

on left bank at outlet of Swan Lake, about 1,000 ft downstream from Johnson Creek and 5 

miles southeast of Blgfork.

Drainage area. 671 sq ml (revised).

Records 1951. available. October 1910 to May 1911 (gage heights only), April 1928 to September 

. Water-stage recorder. Datum of gage Is 3,062.6 ft above mean sea level (river-profile survey). Oct. 10, 1910, to May 22, 1911, staff gage at site 10 miles upstream at 

different datum. Apr. 28, 1922, to Oct. 14, 1930, staff gage at site 800 ft upstream 

at datum 1.9 ft higher.

Average discharge. 25 years (1922-24, 1928-51), 1,035 cfs..

Extremes. Maximum discharge during year, 4,750 cfs May 14 (gage height, 5.45 ft); minimum 

observed, 428 cfs Feb. 2 (gage height, 2.34 ft).

1922-51: Maximum discharge, 8,400 cfs May 24, 1948 (gage height, 7.12 ft, from graph 

based on gage readings); minimum, 85 cfs Jan. 26-29, 1930 (gage helglt, 0.04 ft, site 

and datum then In use).

Remarks . Records excellent except those computed from staff-gage readings, which are fair. 

HaTural storage In Swan Lake. Diversions for Irrigation of about 36C acres above station.

Rating tables, water year 1950-51 (gage height. In feet, and 

discharge, In eublo feet per second)

Oct. 1 to May 14 May 15 to Sept. 30

2.5

2.6 

5.0 

5.5

400

620

990

1,550

lowing table 

above 3.5 ft.

2.5 

5.0 

5.5 

4.0

580

1,020

1,550

2,220

4.5 

5.0 

5.5

2,960

3,660

4,350

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

26

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

560 

545 

536

530

5S3

568

590

590

560

566

575

582

590

598

612

620

644

684

716

763

790

600

790

800

772

761

772

772

670

1,030

1.150

21,267

687

1.02

1.16

42,220

NOV.

1,170 

1.200

1,166

1,120

1,080

1,090

1,070

1,050

1,020

950

900

860

660

610 

610

 772

745

745 

745

709

709

709

7QQ 715

727

745

763

761

767

793

-

26,336

376

1.31

1.46

52,240

Dec.

600

eoo

600

790

772

754

716

716

716

727

727

727

727

709 

715

718

736

736 

716

727

761

 620

870

970

1,180

1,330

1J446

1,390

1,390

1,260

27,741

695

1.33

1.53

55,020

Jan.

1.250 

1,166 

1,120

1,060

1,030

960

640

600

763

772

772

754

754

736 

727

709

676

676 

652

*644

644

644

644

656

628

660

676

605

515

485

456

23,466

757

1.13

1.30

46,550

Feb.

442

545

575

590

605

620

676

790

970

1,160

1,310

1.350 

1,330

1,320

1,280

1,200 

1,130

1,080

1,020

*960

910

860

830

610

763

727

-

-

-

24,761

665

1.32

1.36

49,150

Mar.

m676

660

636

605

575

£05

605

605

605

605

605 

605

605

596

598

562

562

582

575

566

560

566

575

598

612

620

612

644

16,844 'eoe

0.906

1.04

37,360

Apr.

7S5

650

960

1,130

1,310

1,490

1,620

 1,740

1,770

1,760

1,740

1,710

1,720 

1,600

1,630

1,630

1,630 

1,860

1,900

1,650

1,600

1,710

1,620

1,550

1,490

1,450

1,500

1,620

1.930

-

46,653

1,562

2.33

2.60

92,930

May

2.370 

2,646 

2,700

2,760

2,340

3,060

3,360

3,690

3,640

*3,660

3,960

4,110

4,470

4.750 

4,530

4,110

3,750

5,490 

3,400

3,330

3,190

3,110

3,090

3,240

3,530

3,730

3,670

3,490

3,350

3,190

2,980

107,630

3,472

5.17

5.96

213,500

June

2,760 

2,580 

2,370

2,200

2,100

2,030

2,030

2,000

1,930

1,680

1.660

2,000

2,260

2,480 

2,740

3,120

3,620

3.640 

5,846

3,690

3,470

3,260

3,040

2,950

2,960

 3,000

2,930

2,650

2,760

2,670

-

61,260

2,709

4.04

4.51

161,200

July

2,550 

2,460 

2,430

2,430

2,490

2,600

2,640

2.660

2,606

2,520

2,430

2,340

2,220

2,130 

2,060

2,060

2,060

2,030 

1,970

1,930

1,660

1,600

1,720

1,630

1,550

1,470

1,430

1,380

1,330

1,310

 1.260

63,410

2,045

3.05

3.52

125,800

Aug.

1.220

1,266

1,150

1,110

1,090

1,050

1,020

992

963

944

925

696

676

649 

640

812

794

767 

749

724

716

700

692

664

700

684

664

700

676

75?

740

26,673

660

1.26

1.48

52,910

Sept.

708

700

676

660

644

628

620

620

660

700

708

700 

692

666

660

652 

 644

636

626

620

620

620

644

666

700

700

692

700

-

20,016

667

0.994

1.11

39,700

Calendar year 1950: Max 5,900 Mln 346 Mean 1,439 Cfsm 2.14 In. 2r 11 Ac-ft 1,042,000

Water year 1950-51: Max 4,730 Mln 426 Mean 1,338 Cfsm 1.99 In. 27.07 Ac-ft 966,600

* Discharge measurement made on this day.

Note.--Computed from once-daily staff-gage readings Nov. 2, 3, Nov. 29 to De-5. 21, Deo. 24 to Jan. 

97Tan. 29 to Feb. 4, Mar. 5-9.
FEND OREILLE RIVER BASIN 

Flathead Lake at Somers, Mont.

Location. Lat 48 004'30". long. 114°13'30", In SE^NE^ sec. 26, T. 27 N., R. 21 W., at 

steamboat dock at Somers.

Records available. April 1922 to September 1951.

Qage. Water-stage recorder. Datum of gage Is at mean sea level {Somers datum). July 

T to Dec. 12, 1923, temporary staff gage at same site and datum.

Extremes. Maximum elevation during year, 2,893.21 ft July 28; minimum, 2,883.65 ft

1922-51: Maximum elevation, 2,896.26 ft June 19, 1933; minimum, 2,881.07 ft 

Dec. 5, 1936.

Remarks. Since April 1938 lake elevation has been subject to regulation by Ke~r Dam, 

4~iTles below outlet and since Sept. 21, 1951, by Hungry Horse Reservoir.

239

Elevation, in feet, water year October 1950 to September 1951

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

Oct.

92.74

92.75

92.75

92.72

92.61

92.76

92.75

92.65

92.74

92.74

92.75

92.77

92.79

92.65

92.67

92.69

92.91

92.91

92.94

92.99

92.66

92.75

92.77

92.65

92.91

92.65

92.95

92.95

92.91

92.92

92.95

Mov.

92.90

92.65

92.64

92.89

92.91

92.94

92.68

92.65

92.65

92.85

92.65

92.90

92.90

92.65

92.65

92.63

92.84

92.60

92. 60

92.61

92.60

92.66

92.71

92.70

92.75

92.76

92.60

92.75

92.75

92.60

-

Deo.

92.80

92.75

92.74

92,70

92.65

92.60

92.55

92.50

92.52

92.46

92.45

92.54

92.20

92.12

91.96

91.87

91.62

91.69

91.61

91.49

91.59

91.56

91.26

91.42

91.45

91.60

91.69

91.72

91.75

91.71

91.61

Jan.

91.46

91.55

91.26

91.12

90.66

90.67

90.47

90.17

69.92

69.65

69.36

69.16

69.00

66.65

66.65

66.60

66.71

66.55

66.51

66.45

66.55

68.52

66.20

66.15

66.12

87.90

67.91

67.60

67.66

67.60

67.50

Feb.

67.44

67.40

67.52

87.29

67.22

67.15

67.11

67.05

67.06

86.97

67.10

67.20

67.24

67.26

67.50

67.25

67.16

67.20

87.10

66.95

66.77

66.65

66.56

86.55

66.24

86.10

65.97

85.65

_

_

-

Mar.

65.64

65.52

65.41

65.22

65.10

65.00

84.90

84.74

84.70

84.60

84.51

84.47

84.56

84.51

84.50

64.22

84.15

84.06

84.01

65.99

65.95

65.94

65.66

65.64

65.65

65.65

65.65

85.77

85.74

85.71

65.67

Apr.

85.70

65.70

65.70

65.70

65.76

65.68

84.00

84.20

84.55

84.46

84.57

84.66

84.67

84.80

84.96

65.10

65.25

65.52

65.45

65.55

65.65

65.65

65.67

65.67

65.67

65.70

85.75

65.67

86.10

86.50

-

May

86.65

87.07

67.20

67.50

67.42

67.70

66.17

66.65

69.05

69.50

90.00

90.55

91.15

91.50

91.64

91.66

91.72

91.76

91.92

92.00

92.05

92.06

92.25

92.45

92.66

92.75

92.72

92.65

92.52

92.55

92.14

June

91.96

92.05

92.11

92.12

92.22

92.22

92.20

92.15

92.07

92.05

92.12

92.27

92.45

92.65

92.60

92.92

92.99

92.96

92.95

92.60

92.77

92.66

92.90

92.84

92.65

92.75

92.66

92.67

92.76

92.74

-

July

92.70

92.76

92.84

92.96

92.95

92.65

92.79

92.74

92.76

92.79

92.62

92.69

95.01

95.00

92.94

92.69

92.69

92.95

92.96

92.97

92.92

92.65

92.60

92.67

92.97

95.03

93.03

93.07

92.67

92.79

92.62

1 Aug.

T2.S6 P2.se

P2.90

92.95

92.95

92.95

92.90

92.90

92.67

92.85

92.65

92.63

92.65

92.76

92.75

92.73

92.70

92.77

92.77

92.65

92.62

92.76

92.71

92.66

92.70

92.66

92.67

92.70

92.71

92.79

92.60

Sept.

92.67

92.90

92.97

92.96

92.95

92.66

92.76

92.75

92.76

92.77

92.60

92.68

92.78

92.75

92.76

92.60

92.76

92.76

92.66

92.70

92.67

92.65

92.67

92.66

92.65

92.65

92.69

 2.71

92.76

92.66

-

Note.--Add 2,600 ft to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Calendar year 1950. .....

Mater year 1950-51......

Elevation 

(feet)t

2,692.75 

2,692.95 

2,692.60 

2,691.61

-

2,667.50 

2,685.65 

2,865.67 

2,666.50 

2,892.14 

2,892.74 

2,692.62 

2,692.60 

2,692.66

-

Contents 

(acre-feet)*

1,757,000 

1,765,000 

1,766,000 

1,617,000

-

1,112,000 

909,900 

651,600 

990,600 

1,665,000 

1,756,000 

1,766,000 

1,766,000 

1,773,000

-

Change in contents 

during month 

(acre-feet)

+28,000 

-19,000 

-149,000

 290,000

-505,000 

-202,100 

-256,500 

 559,000 

+692,400 

 75,000 

 10,000 

-2,000 

 7,000

 t-16,000

t Elevations at 12 P.M. 

* Contents above elevation 2,676 ft.
240 PEND OREILLE RIVER BASIN

Flathead River near Poison, Mont.

Location. Lat 47 0 40'50", long. 114°15'10", In NW&Ei sec. 11, T. 22 N., R. 21 W. , on 

left bank half a mile downstream from Kerr Dam, 4 miles west of Poison, and 5 miles 

downstream from Flathead Lake.

Drainage area. 7.096 sq mi (revised).

Records available. July 1907 to September 1951.

flake. --Water -stage recorder. Datum of gage is 2,693.70 ft above mean sea level (levels

"by The Montana Power Co.). Prior to Oct. 1, 1941, staff, cliain gage, or recorder 

at several sites near highway bridge at old site of Michell's ferry 6 miles downstream from present site, all at datum 2,629.00 ft above mean sea level (river -prof lie 

survey).

Average discharge. 44 years, 11,330 cfs.

Extremes. --Maximum discharge during year, 66,800 cfs June 16 (gage height, 17.99 ft); 

minimum, about 250 cfs Sept. 3; minimum daily, 1,410 cfs Aug. 19.

1907-51: Maximum discharge, 82,100 cfs May 29, 30, 1928 (gage height, 17.1 ft, 

site and datum then in use; minimum probably less than 5 cfs Apr. 13, 1938, caused by 

power regulation; minimum daily, 32 cfs Apr. 12, 1938, caused by power regulation.

Remarks . --Records excellent. Diversions above station for irrigation of about 10,000 

acres. Flathead project pumps can divert up to 12,000 acre-ft per mon*;h when required 

for irrigation of lands downstream from station. Flow regulated by Ke-r Dam since 

April 1938 (see preceding page). Storage began in Hungry Horse Reservoir Sept. 21, 

1951, 21,500 acre-ft stored through Sept. 30.

Revisions (water years). W 652; 1926. W 752: 1932. W1182: 1948.

Rating table, water year 195O-51 (gage height. In 

feet, and discharge, In cubic feet per second)

1.6 

2.0 

3.0 

5.0

1,390

1,780

3,020

6,320

7.0 

1O.O 

14.0 

16.4

11,300

22,000

42,200

56,600

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2

5

4

5

6

7

8

9 

1O

11

12

15

14

15

16

17

18

19

20

21

22

25 

24

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

2.070 

5,700

5,650 

5,910

5,790

4,040

5,800

5,610

4,190 

5,600

 5,290

3,600

4,790

4,620

4,580

6.O5O

6^450

6,160

6,270

9,430

21,200

21.400

10^600 

7,160

7,37O

7,120 

8,550

10,700

10,800

12,400

12,200

221,100

7,152

438,500

+28,000

Nov.

16.300 

17,900

11, 900 

11,500

5,8OO

11,700

11, 700

12, 1OO

10, 700 

8,360

6,920

6,120

3,750

6,520

8,110

7,760

7,740

6,960

4,770

6,960

7,53O

7,180

5,670 

6,700

5,300

3.400 

 6,530

7,200

7,250

7,540

-

256,670

8,556

509,100

-19,000

Dec.

7,140 

7,550

6,540 

7,850

6,880

9,400

8,650

7,420

6,900 

6.500

11,500

15,600

14,500

15, OOO

14,800

15.0OO

11,000

13, 900

14,100

13,700

14, 100

' 15,500

1O.80O 

11,50O

15,400

12,700 

11,000

11,600

12,900

15,200

16.400

556, O1O

11,480

706,100

^149,000

Jan.

20,40O 

20,800

14,900 

19,200

21,700

21,800

21,400

24, 10O

25. 100 

24)700

24,50O

25, 500

17,600

14, 500

11,500

9,820

9,620

9,7OO

 9,960

1O, OOO

9,750

10, 100

10, 400 

9,540

9.050

9,400 

9,110

9,56O

9,590

9,210

9,510

46O.OOO

14,640

912,400

-505,000

Feb.

9,450 

9,590

8,480 

6.19O

8,450

8,850

8,650

9,510

9,590 

8,520

6,550

6,530

9,450

9,620

11,900

14,20O

14,100

9,430

14,700

17.400

17,300

17,400

17,200 

17, OOO

15,700

15, 900 

16,900

15,800

_

-

-

556,190

12,010

666,600

-202,100

Mar.

15. OOO 

14, 600

15,700 

15,300

15, 1OO

12,200

10, 500

9,26O

9,320 

9,160

9,290

9,080

 9,050

9,260

6, 68O

3,550

8,550

6,5OO

8,450

6,510

7,790

7,460

6,920 

5,850

4.6OO

6,680 

6,660

6,74O

6,780

6,260

6,57O

277, 81O

6,962

551,000

-258,500

Apr.

3.470 

6,660

6,940 

6,800

6,640

7.O8O

6,640

4,560

7,i60 

8,21O

9,510

1O,300

10,200

11,100

11,600

12,OOO

12,600

 15,600

14,2OO

14,600

14,700

14,90O

15,10O 

15, OOO

15,100

15, OOO 

15,200

15,600

16,20O

17.900

-

339,090

11,500

672,600

+339,OOO

May

2O.10O 

21,800

25, 100 

25,500

24, 100

25,500

27,400

29,600

52,400 

55,000

57,2OO

40,000

42,600

46,000

47,6OO

48, 100

46, 600

48,700

49,5OO

49,600

50,600

50, 500

50, 400 

51,500

 52, 800

54,000 

54.500

53, 100

55,400

55,200

51,800

1,296/400

41,820

*2,571

1692, 400

June

45, 1OO 

26, 5OO

25.200 

25,300

26,200

29,10O

29,800

29,500

29, OOO 

26,800

26,600

29,40O

29,60O

55,OOO

42,600

52,90O

55, 600

56.500

55, 800

52,800

42,000

51,200

57,000 

40,900

43, 500

45, 60O 

42, 1OO

55,800

 29,800

50,200

-

1,101,400

56,710

*2,185

+75,000

Jul"

55, COO 

26.EOO

26,100 

29, COO

59,100

45. ZOO

42, 600

54,400

28,700 

51,600

27,eoo 2i,eoo

20,200

26,800

5O,fOO

29,600

26,600 21,900 2i,eoo

22,100

25,900

25,700

2O, COO 

12 , 40O

9, COO

9,760 

14,300

18, COO

2O.90O

16,100

8_i!20_

759, e«0

24,510

*1,E07

+1O, COO

Aug.

8,850 

8,95O

8,620 

8,650

9.030

 7,920

8,980

8,700

6,400 

6,800

6,620

8,09O

7,720

3,720

8,520

7,990

7,270

1,450

1.410

5,060

7,310

7,920

7,670 

8,210

5,980

2,870 

5,050

6,120

4,600

5,150

4,150

212,720

6,862

421,90

-2,OOO

Sept.

5,040 

2,960

5,11O 

7,990

6,460

11.8OO

12.600

10, 600

3,36O 

6,92O

6,470

5,280

6,580

6,800

5,960

4,52O

6,280

6,470

6,740

5,69O

6,600

5,150

2.620 

5,270

5,620

4,24O 

 5,470

5,750

4,670

5,050

-

182,270

6,076

561,500

H-28.,650

Adjusted for change In reservoir contents

Mean

Cfsm

In.

Ao-ft

7,587

.

_

466,500

8,236

-

_

490,100

9,060

_

.

557,100

6,626

_.

_

407,400

8,367

_

_

464,700

4,760

_

_

292,700

17,000

_

_

*1,012

53,070

_

_

*3,263

37,980

_

_

*2,260

24, 870

_

_

*1,517

6,829

_

«

419,900

6,557

_

«

390, 150

Calendar year 1950: 

Water year 1950-51:

Max 

Max

65, 

56,

500 

500

Mln 1, 

Mln 1,

750 

410

Mean 

Mean

15, 

15,

560 

890

Ac-ft 

Ac-ft

11, 

11,

260,000 

500,000

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

15 

15

,960 

,940

Cfsm - 

Cfsm -

In. 

In.

- Ac-ft 

Ao-ft

11, 

11,

550, 000 

540, 000

* Discharge measurement made on this day.

t Change In contents In Flathead Lake, In acre-feet, furnished by The Montana Power Co. and change 

In Hungry Horse Reservoir furnished by U. S. Bureau of Reclamation.

* Expressed In thousands.
FEND ORKILLE RIVER BASIN 

Clark Fork near Plains, Moot.

241

Location. lat 47°25'50", long. 114°51'20", SW£ sec. 1, T. 19 N., R. 26 W., or right 

bank 2 miles southeast of Plains and 6 miles downstream from Plathead River.

Drainage area. 19,900 sq ml, approximately. 

Records available. October 1910 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,449.34 ft above mean sea level, datum 

of 1929 (levels by Corps of Engineers).

Average discharge. 35 years (19:12-15, 1917-19, 1920-24, 1925-51), 18,690 cfs.

Extremes. Maximum discharge during year, 96,100 cfs May 26 (gage height, 15.60 ft); 

minimum, 6,700 cfs Aug. 20 (gage height, 3.90 ft).

1910-51: Maximum discharge, 134,000 cfs June 5, 1948 (gage height, 19.17 ft); 

minimum, 3,200 cfs Feb. 8, 1936, Dec. 10, 1940; minimum gage height, 2.85 ft Dec. 10, 

1940.

Remarks. Records excellent. Some regulation by Plathead Lake (see p.239). Elverslons 

for irrigation of about 335,000 acres above station.

Rating table, water year 195O-51 (gage height, In 

feet, and discharge. In cubic feet per second)

3.9 

4.5 

5.0 

6.0 

7.O

6,700

8,960

11,000

15,500

20,650

9.0

11.0

13.0

15.6

33,250 

48,700 

68,000 

96,10O

Discharge, In cubic feet per second, water year October 1950 to September If51

D«y

l

2 

S 

4 

5

6 

7 

8 

9 

10

ii 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

Z7 

28 

29 

30 

31

Total 

Mean

Ac- ft

Oct.

8,480 

7.950 

6,560 

8,960 

9,320

9,36O 

9,840 

9,720 

 9,640 

9,96O

9,680 

9.36O 

9,680 

10,600 

10,600

10,400 

11,800 

12,400 

12,400 

12,500

16, 200 

27.500 

23,700 

15, 900 

13, 300

13,500 

13,100 

14,500 

17,000 

18,500 

19,900

394, 110 

12,710 

781,700

NOV.

20,500 

26.4OO 

2S,200 

18, 700 

18,300

 13,800 

18, 500 

18,7OO 

19,100 

17,200

15,100 

13,700 

12,900 

15,200 

14,800

14,700 

13.9OO 

14,200 

13,500 

11.2OO

12,600 

13,300 

13,400 

12,100 

12,800

11,800 

10.600 

T.2,900 

13,600 

13,600

460,300 

15,340 

913,000

Dec.

14,000 

13,400 

13,400 

12,600 

13,300

14,200 

14,300 

13,700 

12,900 

12,700

 12.000 

16,500 

18/600 

19,000 

1S,9OO

18,600 

17,4OO 

15.8OO 

18,000 

18,300

18,300 

18,800 

18,600 

17,500 

18,200

19, 1OO 

19, 100 

18, 3OO 

18,600 

19,500 

21.900

515,500 

16,630 

1,022

Jan.

24,200 

24,9OO 

24,200 

19,800 

24,700

26,100 

25,500 

24,9OO 

28,200 

28.400

28,000 

28,200 

25,600 

2O, 60O 

17,900

15,700 

15,3OO 

 15, 1OO 

14, 700 

14.7OO

14,400 

14, 300 

14, 500 

14,80O 

14,200

13, 900 

14,400 

13,700 

11,700 

10, 600 

10.500

593,700 

19,150 

*1,178

Feb.

11.500 

12,300 

12,8OO 

13,300

12,500

13,900 

14,400 

14,900

16,700 

18,700

22,000 

22,800 

23.700 

2l,966 

19,900

21,400 

22,200 

21,500 

16,600 

 22,300

23,400 

23,000 

22,800 

22,300 

21,900

20,800 

21,200 

21,500

532,200 

19,010 

*1,056

Mar.

2O.500 

19,700 

19,100 

18,30O 

18, 10O

16, 800 

15, 6OO 

14, 7OO 

13,700 

14,700

15,000 

14,6OO 

13,800 

14,100 

14,400

14,400 

14,300 

14,400 

12.2OO 

13,8OO

13,800 

13,600 

13,800 

13, 700 

12,700

 12.000

13, 800 

14, 500 

14, 20O 

13,800 

13,3X>0

461,200 

14, 880 

914, 800

Apr.

13,800 

11.700 

15,000 

16,700 

18, 1OO

19,400 

20,700 

21,500 

20,000 

22,5OO

23, 100 

24,100 

24,300 

25,600 

27,800

28,6OO 

28,800 

29,50O 

31,200 

31, 400

31,100 

30.2OO 

»29,50O 

28,700 

28,200

27,900 

28.OOO 

29,000 

31,500 

34.9OO

752, 8OO 

25.O9O

*1,493

May

38.800 

41,100 

40,900 

4O.6OO 

41, ZOO

43,800 

49.9OO 

56,600 

 62,100 

67,500

71,200 

77,400 

82 , 70O 

86,900 

87,300

84,OOO 

81,600 

81, 9OO 

83,7OO 

85,200

85,400 

85,300 

86, 400 

89,100 

93,000

95.400 

93,900 

91,200 

89,700 

89,9OO 

85, 800

J ,289,500 

73,850 

*4,541

June

81,600 

65,OOO 

48,600 

45.70O 

48,700

48,6OO 

50.90O 

5O, 90O 

SO, 500 

49,700

46,700 

50,300 

 53, 500 

55,600 

62,800

76,300 

87,300 

89.200 

87,300 

84,100

77.5OO 

59.90O 

57,200 

58,800 

63, 100

64, TOO 

63,200 

59,300 

50,7OO 

47,300

*1,833 

61,100 

*3,636

July

47,600 

47,400 

40,000 

42,900 

46,900

57,300 

57.900 

56] 300 

44, TOO 

42,400

44,800 

40,500 

33,300 

34,600 

39,800

40,6OO 

39, 10O 

34, 900 

31, 600 

30, 6OO

31,000 

31, 600 

3O, 5OO 

25,800 

18, 900

17.100 

17,600 

21.50O 

24.9OO 

26, 100 

20,300

1,118,500 

36,080 

*2,219

Aug.

15.600 

15,300 

15,100 

14,800 

14, 700

14,600 

13, 90O 

«1*,400 

14,100 

14, 1OO

15,900 

15,800 

13,300 

15,300 

13,8OO

13,500 

13,200 

12,500 

7,720 

6.880

7,280 

11,000 

1?,300 

12,000 

12,700

9,920 

8,370 

9.16CT 

11.3OO 

r>,200 

It, 300

383,030 

12,360 

759,700

Sept.

9,880 

9,04O 

8,760 

10,5OO 

12,300

13,300

16,40O 

16.700 

14,900 

10,200

10,700 

11,300 

10,700 

10,900 

11,2OO

10, 8OO 

10,OOO 

1O.OOO 

 10, 500 

11,100

10,300 

10,800 

9,880 

8.220 

9,760

10,600 

9,560 

1O, 3OO 

10,900 

9,920

329,420 

10, 980 

653,400

Calendar year 1950 : Max IIO.OOO Mln 7,130 Mean 25,960 Ac-ft 18,8OO,OOO 

Water year 195O-51 : Max 95,4OO Mln 6,880 Mean 26,470 Ac-ft 19,170,000

 Discharge measurement made on this day. 

t Expressed In thousands.
242 FEND OREILLE RIVER BASIN

Clark Pork near Heron, Mont.

Location. Lat 48«04", long. HSe S9", in sec. 28, T. 27 N., R. 34 W., on left bank 600 ft 

upstream from Dead Horse Creek and Ij miles northwest of Heron.

Drainage area. 21,800 sq mi, approximately. 

Records available. September 1928 to September 1951.

. Water-stage recorder. Datum of gage is 3,078.00 ft above mean sea level, datum of 

929, supplementary adjustment of 1947. Prior to Oct. 30, 1928, staff gage at same 

site. Datum lowered 10.00 ft Jan. 2, 1931.

Average discharge. 23 years, 20,400 cfs.

Extremes.--Maximum discharge during year, 106,000 cfs May 26 (gage height, 40.53 ft); mlnimum, 2,800 cfs Aug. 21 (gage height, 9.00 ft); minimum daily, 3,860 c's Aug. 21.

1928-51: Maximum discharge, 153,000 cfs May 29 to June 1, 1948: maximum gage height, 

50.97 ft May 31, 1948; minimum discharge, 1,190 cfs Dec. 23, 1935 (gag-J height, 7.59 

ft), during period of extreme regulation, from rating curve extended tnlow 4,000 cfs; 

minimum daily, 1,400 cfs Feb. 12, 1936.

Maximum discharge known, 195,000. cfs June 1894 (gage height, 59.1 f"~., present datum, 

from floodmark an eighth of a mile downstream).

Remarks. Records excellent. Some regulation by Flathead Lake (see p. 239); diurnal fluctuation at low flow caused by powerplant at Thompson Falls. Diversion^ above station 

for irrigation of about 354,000 acres.

Revisions (water years).~W 1182: 1936.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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 

Ac-ft

Oct.

8,850 

9,210 

8.580 

9,156 

9,480

9,960 

10,100 

10,400 

10,300 

10,400

11,000 

10,700 

10,200 

10,300 

11,300

11,000 

11,300 

12,700 

13,500 

13,900

14,400 

21,500 

28.600

22,266

16,400

14,200 

14,800 

15,100 

16,700 

 19,700 

22,700

418,610 

13,500 

830,300

Nov.

21,800 

25,100 

28.800 

24,1OO 

21,100

19,900 

16,700 

20,900 

20,500 

21,200

18,500 

17,000 

15,600 

14,300 

16,400

18,300 

16,100 

15,400 

15,600 

14,600

12,800 

14,100 

14,800 

17,900 

14,100

14,400 

14,000 

12.700 

15,100 

16,200

523,000 

17,430 

*1,037

Dec.

15,700 

15,800 

15,500 

15,400 

14,700

14,500 

16,000 

15,900 

15,100 

14,500

14,300 

14.100

18,666

20,000 

20,300

20,400 

20,100 

19,100 

 18,200 

20,100

20,900 

21,900 

23,000 

25,500 

26,000

26.100 

25,700

24,800 

23,500 

23,700 

23,800

602,600 

19,440 

*1,195

Jan.

25,800 

27,700 

28,600 

26,300 

24,000

27,600 

28,600 

27,900 

27,900 

30,600

30.700 

30,400 

30,400 

27,300 

22,800

19,800 

18,300 

17,400 

17,300 

16,900

16,800 

16,500 

16,300 

16,400 

16,600

16,400 

16,800 

15,700 

14,000 

11,900 

11.200

674,900 

21,770 

* 1,339

Feb.

11.500 

12,566 

13,200 

15,000 

15,400

14,500 

15,400 

 16,300 

18,500 

25,400

32,500 

38.000 

Si, 666 

32,200 

28,800

26,200 

27,700 

27,000 

25,600 

21,800

27,100 

27,300 

26,800 

26,500 

25,800

25,000 

24,000 

24,600

659,000 

23,540

*1,307

Mar.

24.300 

23,200 

22,700 

21,800 

21,000

20,700 

18,500 

16,900 

16,100 

16,600

17,300 

17,500 

16,800 

16,900 

16,800

16,900 

16,700 

16,600 

16,200 

14,600

15,800 

16,000 

16,100 

16,100 

15,800

14,700 

14.400 

16,166 

16,800 

 16,400 

16,600

542,900 

17,510 

*1,077

Apr.

16,300 

16,900 

15.700 

19,400 

22,000

24,500 

26,300 

27,900 

28,800 

28,000

28,700 

30,400 

31,400 

32,400 

34,500

35,400 

35,900 

36,500 

37,500 

38,800

37,900 

36,800 

35,400 

34,600 

34,200

33,700 

33,900 

34,700 

37,100 

 40.300

925,900 

30,860 

*1,836

May

44.600 

47,400 

47,900 

47,700 

48,300

51,000 

57,200 

65,200 

71,400 

76,400

81,800 

87,7OO 

92,700 

96,700 

98,600

96,300 

93,400 

93,000 

 94,000 

95,000

95,300 

95,500 

96,600 

99,100 

102,000

106.000

165,666

102,000 

99,200 

 98,500 

95,800

*5*120

June

91,100 

84,600 

64,400 

54,500 

53.400

54,000 

56,500 

57,400 

57,100 

56,900

55,600 

 54,900 

59,600 

62,300 

66,400

76,300 

89,600 

96.600 

96,506 

94,200

89,300 

80,600 

63,800 

66,000 

68,200

70,600 

70,900 

68,600 

 63,900 

55,200

*2,079 

69,300 

*4,124

July

53,300 

53,500 

SO, BOO 

46,600 

49,300

56,400 

63.400 

62, (60 

59,200 

48,700

48,800 

48,400 

43,600 

37,!TOO 

40.FOO

44,400 

44,700 

42,300 

37,600 

35,?00

33,fOO 

34,700 

34,FOO 32,eoo

28,C<X)

19*700 

20,C *t> 

23,fOO 

 27,3'X) 

27,2*>0

U,27C .3

40,ff«0 

*Z,?20

Aug.

2O.70O

16,506

15,900 

16,500 

16,300

16,100 

15,800 

15,600 

15,700 

15,400

15,500 

15,300 

15,000 

14,600 

14,900

15,100 

14,800 

17,500 

14,200 

9,480

3,260 

7,520 

11,800 

12,800 

 13,100

13,500 

11,200 

9,910 

9,950 

12,600 

11,400

427,920 

13,800 

848,800

Sept.

11,900 

11,000 

10,600 

11,200 

11,600

13,500 

14,600 

16,900 

17.100 

14,800

11,200 

12,200 

11,900 

11,400 

12,300

12,100 

11,700 

11,000 

11,500 

12,000

11,800 

 11,400 

11,700 

11,200 

9.670

11,000 

11,700 

10,800 

11,600 

12,000

363,370 

12,110 

72O,70O

Calendar year 1950: Max 120,000 Mln 7,430 Mean 29,730 Ac -ft 2 1,520 ,00 

Hater year 1950-51: Max 106,000 Mln 3,260 Mean 30,330 Ao-ft 21,950,00

 Discharge neasurenent aade on this day.

* Expressed In thousands.
PEND OREILLE RIVER BASIN 243

Fend Orellle Lake at Hope, Idaho

Location.--Lat 48°15", long. 116°18<, In lot 2, sec. 35, T. 57 N., R. 1 E., at floating 

flock near Northern Pacific Railway station at Hope.

Drainage area. 22.900 sq mi, approximately.

Recoras available. March 1914 to September 1922 (published as "at Sandpoint"), September 

isai to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,000.00 ft above mean sea lev<3l, datum

of 1929, supplementary adjustment of 1947. Mar. 18, 1914, to Sept. 30, 1932, staff gage 

at Sandpoint at datum 42.18 ft higher. Sept. 17, 1921, to Oct. 7, 1929, sWf gage at 

present site at datum 45.47 ft higher than present datum. Oct. 8, 1929, to Sept. 30, 

1950, water-stage recorder at present site at datum 0.20 ft lower than present datum.

Extremes. Maximum contents during year, 1,723,000 acre-ft May 29 (elevation, 2*,064.19 

ft); minimum, 240,400 acre-ft Oct. 3, 4, (elevation, 2,047.75 ft).

1921-51: Maximum contents, 2,462,000 acre-ft June 9. 1948 (elevation, 2,071.62 ft, 

present datum); minimum, 117,700 acre-ft Feb. 17, 1936 (elevation, 2,046.27 ft, present 

datum).

Maximum contents known, 2,905,000 acre-ft in June 1894 (elevation, 2,075.88 ft, present datum).

Remarks. Diversions from tributaries of Clark Fork for irrigation. Fend Orellle Lake is 

a natural lake and there is no regulating structure at the outlet. Contends shown is 

that above elevation 2,044.8 ft.

Revisions (water years). W 1122: 1946.

Elevation, to feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

47.82

47.79

47.75

47.61

47.65

47.89

47.90

47.93

47.96

48.01

48.03

48.06

48.07

48.10

48.12

48.14

48.20

48.26

48.41

48.55

48.66

48.90

49.25

49.42

49.50

49.48

49.54

49.59

49.70

49.91

50.10

Nov.

50.25

50.41

50.65

50.61

50.84

50.64

SO. 75

50.74

50.75

50.77

SO. 74

50.65

50.59

50.45

50.37

50.34

50.32

50.27

50.19

50.12

58.08

50.00

49.92

49.92

49.90

49.66

49.64

49.80

49.60

49.67

"

Dec.

49.92

49.93

49.93

49.91

49.64

49.85

49.67

49.87

49.64

49.80

49.75

49.72

49.77

49.85

49.95

50.04

50.13

50.17

50.24

50.34

50.45

50.64

50.92

51.22

51.44

51.63

51.79

51.88

51.92

51.99

52.01

Jan.

52.07

52.22

52.32

52.34

52.32

52.33

52.37

52.40

52.41

52.49

52.55

52.62

52.70

52.64

52.56

52.40

52.23

52.02

51.85

51.66

51.56

51.41

51.26

51.15

51.12

51. 08

50.92

50.89

50.73

50.56

50.39

Feb.

50.25

50.19

50.12

50.10

50.06

50.02

50.04

50.07

50.23

SO. 66

51.27

51.61

52.17

52.41

52.53

52.57

52.60

52.62

52.60

52.50

52.49

52.48

52.47

52.45

52.42

52.37

52.29

52.23

-

-

-

Mar.

52.17

52.09

52.02

51.93

51.83

51.77

51.66

51.54

51.39

51.24

51.12

51.05

50.96

50.65

50.66

50.76

so. 70

50.62

50.54

50.47

50.41

50.38

50.33

50.29

50.26

50.23

50.18

50.18

50.19

SO. 2O

50.20

Apr.

50.20

50.22

50.23

50.32

50.49

50.69

50.90

51.16

51.38

51.57

51.74

51.91

52.17

52.36

52. 6O

52.82

53.03

53.22

53.39

53.59

53.74

53.63

53.69

53.92

53.94

53.96

53.99

54.04

54.14

54.32

-

"ay

54.55

54.78

55.00

55.21

55.40

55.64

56.01

56.49

57.02

57.56

56.21

58.66

59.56

60.27

60.82

61.26

61.63

61.92

62.19

62.43

62.65

62.84

63.09

63.32

63.56

63.79

64.01

64.14

64.17

64.17

64.11

June

63.97

63.73

63.16

62.43

61.61

61.26

60.82

60.44

60.11

59.61

59.55

59.32

59.20

59.12

59.14

59.32

59.69

60.17

60.56

60.65

61. OO

60.99

60.72

60.47

60.29

60.21

60.09

59.95

59.74

59.40

July

59.05

56.76

56.42

58.17

57.86

57.80

57.62

57.83

57. 7B

57.53

57.33

57.12

56.64

56.49

56.24

56.10

55.97

55.61

55.56

55.30

53.02

54.61

54.63

54.42

54.16

53.75

53.36

53.06

52.65

52.74

52.64

*>«.

52.40

52.11

51.85

51.63

f?.42

51.22

51.05

50.89

50.73

50.59

50.45

50.36

50.24

50.15

50.05

49.98

49.90

49.90

49.81

49.60

49.34

49.16

49.09

49.04

49.03

48.99

48.91

48.60

46.79

46.60

48.73

Sept.

48.74

48.67

48.62

48.59

48.57

48.59

48.67

48.77

48.85

48.94

48.84

48.79

48.78

48.69

46.69

48.66

48.63

48.61

46.56

48.56

48.57

48.51

48.53

48.52

48.51

46.43

48.39

48.39

48.39

48.46

Hote. Add 2,000 ft to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31....................

Mar. 31........ ............

Sept. 30...... ..............

Water year 1950-51. ......

Elevation 

(feet)t

2,052.01

2,048.48

Contents 

(acre-feet)

606,700

302,000

Change In contents 

during month 

(acre -feet)

+185,900

-21,200

t Elevation at 12 p.a.
244 FEND OREILLE RIVER BASIN

Priest Lake at outlet, near Coolin, Idaho

Location. La fc 48°29'30", long. H6e 53'00", in SE$ sec. 5, T. 59 N., R. 4 W., half a mile 

east of outlet and if miles northwest of Coolin.

Drainage area. 572 sq mi.

Records available. June 1911 to September 1913 (fragmentary gage-height records at 

Coolin), published as part of records for Priest River at outlet of PrJ.est Lake, at 

Coolin, April 1928 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,434.64 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. June 1911 to September 1913, staff gages at 

Coolin at different datums. Apr. 21, 1928, to Oct. 18, 1939, staff gage 400 ft from 

lake outlet at present datum.

Extremes. Maximum gage height during year, 4.63 ft May 18; minimum, 0.73 ft Apr. 2.

1928-51: Maximum gage height, 6.46 ft May 29, 30, 1948; minimum observed, -0.16 ft 

Nov. 23-25, Dec. 4-6, 1936.

Remarks. Flow from Priest Lake is regulated to hold lake at heights desirable for recreatlon interests during summer months and storage is released for power use downstream 

during winter months. Storage began Aug. 9, 1950. Prior to Aug. 9, 1950, some regulation resulted from logging operations in the outlet channel.

Oage height. In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

IB

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

1.30

1.29

1.30

1.33

1.40

1.44

1.49

1.53

1.61

1.69

1.75

1.80

1.84

1.87

1.90

1.91

1.94

1.98

2.07

2.20

2.31

2.36

2.39

2.42

2.47

2.55

2.63

2.74

2.86

3.04

3.16

Nov.

3.22

3.26

3.28

3.28

3.31

3.32

3.32

3.31

3.29

3.26

3.25

3.22

3.19

3.16

3.17

3.20

3.20

3.18

3.14

3.12

3.08

3.06

3.03

3.03

3.04

3.14

3.05

3.01

2.89

2.79

-

Dec.

2.71

2.60

2.51

2.41

2.31

2.24

2.18

2.11

2.10

2.16

2.22

2.28

2.35

2.41

2.48

2.57

2.68

2.76

2.85

2.96

3.06

3.17

3.30

3.45

3.61

3.72

3.76

3.78

3.77

3.77

3.76

Jan.

3.71

3.71

3.71

3.67

3.61

3.55

3.4S

3.43

3.39

3.34

3.31

3.26

3.24

3.22

3.18

3.16

3.15

3.12

3.08

3.04

3.03

3.01

2.97

2.95

2.94

2.96

2.94

2.86

2.81

2.77

2.73

Feb.

2.69

2.70

2.67

2.65

2.62

2.52

2.44

2.35

2.33

2.29

2.36

2.38

2.35

2.30

2.26

2.2?

2.17

2.11

2.05

2.03

1.97

1.91

1.84

1.78

1.72

1.67

1.62

1.57

_

_

-

Mar.

1.52

1.46

1.42

1.41

1.37

1.33

1.28

1.25

1.23

1.19

1.16

1.14

1.13

1.10

1.08

1.08

^.05

1.01

.97

.94

.91

.90

.87

.85

.82

.80

.78

.77

.76

.75

.74

Apr.

0.74

.73

.74

.76

.80

.87

.93

1.00

1.09

1.15

1.23

1.30

1.38

1.49

1.60

1.70

1.82

1.93

2.03

2.08

2.12

2.14

2.15

2.16

2.17

2.19

2.24

2.31

2.40

2.48

Hay

2.58

2.64

2.67

2.71

2.82

2.98

3.20

3.43

3.63

3.83

4.03

4.29

4.46

4.53

4.53

4.53

4.55

4.61

4.62

4.58

4.53

4.50

4.50

4.55

4.54

4.46

4.37

4.29

4.21

4.09

3.94

June

3.81

3.69

3.59

3.50

3.43

3.33

3.22

3.13

3.04

2.98

2.9S

3.01

3.05

3.10

3.17

3.25

3.28

3.30

3.30

3.28

3.24

3.20

3.18

3.24

3.24

3.22

3.17

3.13

3.06

3.00

July

2.96

2.91

2.88

2.91

2.94

2.92

2.90

2.86

2.84

2.81

2.78

2.77

2.76

2.74

2.74

2.7?

2.72

2.71

2.70

2.71

2.7*

2.76

2.79

2.8*

2.85

2.88

2.91

2.9*

2.9P

2.97

2.9f

Aug.

3.01

3.04

3.05

3.06

3.07

3.08

3.10

3.11

3.11

3.15

3.15

3.16

3.16

3.18

3.19

3.21

3.21

3.21

3.22

3.23

3.21

3.20

3.22

3.22

3.20

3.19

3.19

3.20

3.19

3.20

3.24

Sept.

3.25

3.24

3.20

3.18

3.19

3.20

3.20

3.17

3.14

3.10

3.11

3.11

3.10

3.08

3.06

3.05

3.03

3.01

3.01

2.98

2.96

2.96

2.94

2.94

2.96

2.98

2.98

2.99

3.01

3.09
PEND OREILLE RIVER BASIN 245

Priest River near Coolin, Idaho

Location. La t 48°26'50", long. lie'SSGOf', in SE* sec. 19, T. 59 N., R. 4 W., on left bank 

 190 ft downstream from Dickensheet Bridge, Z\ miles downstream from Binarch Creek, 

3 miles southwest of Coolin, and 5 miles downstream from outlet of Priest Lake.

Drainage area. 611 sq mi.

Records available. --October 1948 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,338.24 ft above mean sea level, datum of 

^1929, supplementary adjustment of 1947.

Extremes . Maximum discharge during year, 5.550 cfs May 19 (gage height, 6.80 ft); minimum, 36 cfs Aug. 1 (gage height, 1.32 ft).

1948-51: Maximum discharge, 6,840 cfs May 16, 1949 (gage height, 7.48 ft); minimum, 

that of Aug. 1, 1951.

Remarks . Records good. No diversion above station. Flow regulated by Priest Lake (see 

preceding page) .

Rating tables, water year 1950-51 (gage height, In feet, and 

discharge, In cubic feet per second)

Oct. 1 to May 18

1.6 

2.0 

2.5 

3.0 

3.5

75

150

300

530

870

4.0 

4.5 

5.0 

6.0 

6.8

1,350

1,920

2,590

4,120

5,550

Hay 19 to Sept. 30

1.3 

1.6 

2.0 

2.5

34

67

135

300

3.0 

3.5 

4.0 

4.5

540

880

1,360

1,930

Note. Same as preceding 

table above 4.6 ft.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27 

26

29 

30

31

Total

Mean

Ao-ft

Oct.

146 

 144

142.

150

168

175

182

192

218

236

254

268

280

292

300

304

312

328 

362

412

460

480

490

505

520

572

638 

798

870 

1,050

1.180

12,428

401

24,650

Nov.

1,240 

1,260

1,280

1,300

1,310

1,320

1,320

1,300

1,280

 1,260

1,300

1,300

1,280

1,250

1,250

1,280

1,280

1,250 

1,220

1,200

1,160

1,130

a, no

1,110

1,120

1,120

1.090 

2,520

2.560 

2,520

-

40,920

1,364

81,160

Dec.

2.440 

2,230

2,090

2,020

1,930

1,870

1,900

1,550

669

116

96

92

94

94

92

89

94

94

94

101

138

317

644

762

897

1,500

1,900 

2,010

2,150 

2,150

2,140

32,363

1,044

64,190

Jan.

2.090 

2,080

2,080

2,040

1,970

1,910

1,850

1,790

1,730

 1,660

1,620

1,590

1,570

1,540

1,520

1,500

1,480

1,460 

1,420

1,380

1,380

1,360

1,330

1,310

1,310

1,330

1,340 

1,230

1,190 

1,180

1.110

48,350

1,560

95,900

Feb.

1,090 

1,100

1,080

1.060

1,680

2.360

2,380

2,350

2,320

2,280

2,350

 2,380

2,350

2,310

2,270

2,220

2,150

2,120 

2,060

2,020

1,980

1,920

1,860

1,810

1,750

1,690

1,640 

1,580

:-

54,180

1,935

107,500

Mar.

1.550 

1,500

1,450

1,450

1,420

1,360

1,330

1,300

1,280

1,250

1,220

1,200

1,190

1,160

1,160

1,150

1,120

1,090 

1,060

1,040

1,000

996

978

951

933

906

906 

897

888 

888

879

35,502

1,145

70,420

Apr.

m897

942

1,000

1,070

1,140

1,220

1,280

1,330

1,380

 1,450

1,550

1,670

1,780

1,880

1,980

2,100 

2,180

2,230

2,240

2,270

2,270

2,270

2,280

2,300

2,370 

2,450

2,560 

2.660

-

52,507

1,750

104,100

May

2.770 

2,840

2,870

2,920

3,050

3,260

3,550

3,850

4,120

4,380

4,680

5,070

5,290

5,440

5,420

 5,420

5,440

5.51Q 

5,510

5,490

5,380

5,320

5,360

5,420

5,380

5,290

5,140 

5,000

4,870 

4,680

4,480

143,200

4,619

284,000

June

*4.290 

4,140

3,980

3,850

3,740

3,610

3,460

3,320

3,200

3,100

3,080

3,020

2,800

2,450

2,440

2,510

2,550

2,560 

2,560

2,550

2,510

2,450

2,420

2,490

2,460

2,440

2,410 

2,350

2,280 

2.250

-

87,250

2,908

173,100

July

2.160 

1,830

1,610

1,640

1,660

1,640

1,620

1,590

1,570

1,260

1,080

1,060

1,050

916

840

832

730

600 

540

386

211

106

91

85

75

52

40 

38

39

38

 38

25,447

821

50,470

Aug.

38 

38

41

42

41

44

44

46

48

50

50

51

52

53

54

61

77

79 

90

104

135

197

185

 166

251

345

270 

425

368 

471

802

4,518

146

8,960

Sept.

645 

852

808

364

111

109

282

779

765

345

107

282

435

425

420

415

405

400 

386

376

368

368

358

225

169

172

172 

172

175 

194

-

11,064

369

21,950

Calendar year 1950: Max 5,570 Mln 89 Mean 1,494 Ao-ft 1,082,000

Water year 1950-51: Max 5,510 Mln 38 Mean 1,501 Ao-ft 1,086,000

Discharge measurement made on this day. 

Note. No gage-height record Oct. 10-25, Dec. 5, 6, Jan. 28 to Feb. 11; discharge couputed on basis 

of recorded range In stage, weather records, and records for Priest Lake and nearby st-eams.
246 PEND ORKILLE RIVER BASIN

Priest River near Priest River, Idaho

Location. Lat 48°13', long. 116°55', In NE$SE£ sec. 11. T. 56 N., R. 5 W., on right bank 

500 ft downstream from Saddler Creek, a quarter of a mile dovmstream from Lower West 

Branch, Z\ miles north of Priest River, and 3^ miles upstream from mouth.

Drainage area. 902 sq ml.

Records available. June 1903 to April 1905, November 1910 to April 1911, May to December 

i923, February 1929 to September 1951. Prior to October 1930 published as "at Priest 

River."

. Water-stage recorder. Altitude of gage Is 2,090 ft (from river-profile map). Prior 

b May 15, 1929, and Sept. 18, 1929, to Apr. 28, 1930, staff gages at site 3 miles dovmstream at altitude about 40 ft lower. June 4 to Sept. 17, 1929, Apr. 29 to Sept. 11, 

1930, staff gages at or near present site and at present datum.

Average discharge. 21 years (1930-51), 1,584 cfs.

Extremes. Maximum discharge during year, 6,880 cfs May 14 (gage height, 6.80 ft); minimum, 

203 cfs Aug. 6-9, 11-13 (gage height, 0.56 ft).

1903-5, 1910-11, 1923, 1929-51: Maximum discharge, 10,500 cfs May 29, 30, 1948; maximum gage height, 8.97 ft May 29, 1948; minimum discharge recorded, 184 efs Jan. 7, 1937 

(gage height, 0.54 ft).

Remarks. Records excellent except those for periods of Ice effect or no gage-height

record, which are fair. No diversion above station. Some regulation on tributary and, 

since Aug. 9, 1950, by low buttress and stoplog dam on Priest River th-ee-quarters of 

a mile downstream from lake outlet

Revisions (water years). W 572: 1903-5.

Rating table, water year 1950-51, except periods of Ice effect (gage 

height. In feet, and discharge. In cubic feet per second)

0.5 

.8 

1.1 

1.5 

2.0

185

290

440

700

1,050

2.5 

3.0 

4.0 

5.0 

6.8

1,460

1,940

2,950

4,220

6,880

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ac-rt

Oct.

286 

 282

278

304

396

476

396

385

452

476

458

452

434

446

452

446

476

532

584

686

735

756

742 

728

770

889

931

1,210

1,430

1,870

2.070

20,828

672

41,310

Uov.

1,860 

1,770

1,730

1,740

1,730

1,710

1,700

1,670

1,620

 1,590

1,610

1,630

1,590

1,580

1,570

1,630

1,670

1,630

1,540

1,540

1,530

1,510

1.460 

1,560

1,670

1,670

1,620

2,520

2,980

2.980

-

52,610

1,754

104,400

Dec.

2,900 

2,710

2,530

2,420

2,320

a2,300

a2,300

a2,200

al,300

a600

a550

513

513

482

476

494

637

749

721

840

994

1,070

1,630 

2,290

2,370

2,420

3,000

2,960

3,040

3,070

5.120

53,519

1,726

106,200

Jan.

2.920 

2,830

2,820

2,760

2,660

2,550

2,450

2,420

2,350

2,280

 2,220

2,170

2,140

2,110

2,090

2,050

2,030

1,970

1,920

1,870

1,870

1,830

1,780 

1,760

1,860

2,160

2,040

al,800

al,650

al.550

al,550

66,460

2,144

151,800

Feb.

al.600 

a 1,600

al,600

al.SOO

al,800

33,000

a5,000

a3, 000

a5, 200

a5,900

a4.200

 4,020

5,800

3,610

3,450

5,300

3,160

3,030

2,900

2,820

2,730

2,660

2,550 

2,430

2,450

2,350

2,270

2,180

.

_

-

78,240

2,794

155,200

Mar.

2.120 

2,070

2,000

1,990

1,940

1,880

bl,820

bl.800

1,770

1,690

1,650

1,640

1,640

1,620

1,740

1,740

1,640

1,580

1,540

1,540

1,540

1,540

1.500 

T.156"

1,530

1,650

1,710

1,690

1,680

1,760

1,740

53,250

1,718

105,600

Apr.

1.B20 

1,960

2,100

2,320

2,560

2,710

2,850

2,990

2,960

2,930

2,900

 2,950

5,080

5,560

3,470

3,490

3,570

5,700

3,750

3,670

3,560

3,450

5,560 

3,310

3,280

5,500

3,560

3,570

3,820

3.910

-

94,040

3,135

186,500

May

4.040 

4,090

4,040

4,050

4,300

4,510

4,380

5,170

5,400

5,620

5,920

6,530

6,780

6,850

a6,700

 6,610

6,610

6,660

6,660

6,560

6,450

6,540

6,520 

6,570

6,550

6,190

6,000

5,820

5,650

5,440

5,190

178,050

5,743

353,100

June

 4.950 

4,750

4,580

4,450

4,350

4,190

4,060

3,930

3,790

3,650

5,620

3,660

3,580

3,160

2,990

3,050

5,070

3,080

3,070

3,030

2,990

2,930

2,880 

3,000

2,980

2,900

2,840

2,780

2,720

2.660

-

103,670

5,456

205,600

July

f^i§

2^020

2,040

2,080

2,060

2,020

1.S70

1,S"*0 i,e4o

1,410

1,280

1,250

1,2*0

1,350

1,330

1,110

£17

£*>!

T42

552

290

2">8 

290

278

262

240

226

218

215

 209

35,638

1,150

70,690

AU8.

212 

209

209

209

206

203

203

203

203

206

203

203

206

206

209

206

209

222

222

232

243

270

322 

282

 326

560

434

385

637

604

686

8,730

282

17,320

Sept.

734 

854

994

917

312

254

246

663

924

875

324

246

454

532

526

520

513

500

488

482

470

470

470 

470

560

322

312

304

330

375

-

15,291

510

50,330

Calendar year 1950: Max 6,720 Mln 274 Mean 2,080 Ao-ft 1,506,000

Hater year 1950-51: Max 6,850 Mln 203 Mean 2,083 Ac -ft 1,508,000

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather recorde and reccrds for station 

near Coolln and nearby streams.

b Stage-discharge relation affected by Ice.
PEND OREILLE RIVER BASIN 247

Calispell Creek near Dalkena, Wash.

Location. La t 48 0 14'40", long. 117°20'30", In SW-J- sec. 26, T. 32 N., R. 43 E., on left 

bank 2 miles upstream from Calispell Lake, 4.8 miles west of Dalkena, and 9 miles upstream from mouth.

Drainage area. 67.8 sq ml.

Records available. August 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,070 ft (from topographic map).

Extremes . Maximum discharge during period August 1950 to September 1951, 515 cfs Apr 14, 

15 (gage height, 5.90 ft); minimum, 6.0 cfs Oct. 3 (gage height, 3.12 ft).

Remarks. Records good except those for periods of ice effect or no gage-heig^ record, 

which are poor. Some diversion above station for irrigation. Some regulation by 

Power Lake.

Rating tables, Aug. 1, 1950, to Sept. 30, 1951, except periods of Ice 

effect (gage height, In feet, and discharge, In cubic feet per second)

Aug. 1, 1950, to Apr. 28, 1951 Apr. 29 to Sept. 30, 1951

3.1 5.0

3.3 16

3.6 40

4.0 86

4.5 163

5.0 263

5.9 515

3.2 

3.6 

4.0

17

52

102

5.0 

5.7

283

460

Discharge, In cubic feet per second, 1950-51 

1950

Day

1

2

3

4

5

6

7

8

Total

Mean

Ac-ft

Aug.

a!7

a!7

a!7 

a!7

a!7

17.5

16.5

16

Sept.

15.5

15.5

%

16

16

15.5

15.5

Day

9

10

11 

12

13

14

15

16

Aug.

16.5

17.5

16.5 

16.5

16

16

16

16

Sept.

15.5

15.5

15.5

15

13.5

13.5

13.5

13.5

Day

17

18

19 

20

21

22

23

24

Aug.

16

16

16 

16

16

16

18

TT.5

Sept.

13.5

13.5

13.5

Ta

13

13

13

Day

25

26

27 

28

29

30

31

Auf.

17.5

16.5

16.5 

16

lg

16

1,010

Sept.

13

14

14 

15

14

*14

855

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Mill Creek n-ar 

Colvllle.

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean 

Ac- ft

Oct.

14

15

15.5

w

8.5

8.0

8.5

9.0

10

9.5

9.0

9.0 

9.5

10

12

22

25

25

27

28

25

22

83

25

29

47

68

~TT 108 

736.0

23.7 

1,460

Nov.

48

37

32

33 

35

32

29

25

23

22

22

21

 20

22

26

36

29

23

23

25

27

25

33

48

54

54

o7

50

1,005

33.5 

1,990

Dec.

48

43

40

36 

33

33

36

36

33

34

38

*40

37 

36

37

42

80

86

78

94

127

124

198

254

221

177

151

132

112

122 

124

2,685

86.6 

5,330

Jan.

"93* 100

97

85 

69

66

51

68

66

60

60

56

57 

53

53

52

51

46

47

43

45

43

42

11

51

74

b66

b56

b50

45 

42

1,828

59.0 

3,630

Feb.

a40

a40

a40 

b43

*b46

b47

48

80

212

338

250

220 

204

181

161

146

136

124

118

108

100

b93

b90

b85

bSO

b76

b73

_

-

3,219

115 

6,380

Mar.

b70 bee

b65

b63 

b62

b60

b59

b58

b57

b56

b56

*54

54

63

80

62

56

56

58

61

65

62

63

69

82

92

93

100

ffi

2,127

68.6 

4,220

Apr.

127

Teo

212

292 

365

408

 422

 452

437

393

379

379

437 

499 let

 452

437

468

437

393

341

297

261

243

235

233

 248

338

437

430

10,695

356 

21,210

May

368

350

325

 314 

362

388

445 Its

400

388

400

415

375 

 338

303

 273

263

259

245

226

209

 194

182

175

154

148

138

 127

119

112 

*104

8,564

276 

16,990

June

88

 87 

88

ee

84

84

78

73

69

*71

70 

65

 62

59

56

56

53

50

50

52 *" 49

56

51

45

43

39

ISfe

1,932

64.4

3,630

July

38Sf

35

34

*35

36

34

31

30

29

27

28

27 

 26

26

 23

23

22

22

22

22

23

23

22

22

23

23

23

23

23

21

832

26.8 

1,650

Aug.

20

22 ?s19.5 

21

19.5

19.5

19.5

19.5

18.5

18.5

19.5

19.5 

19.5

19.5

18.5

18.5

18.5

19.5

18.5

18.5

19.5

 19.5

18.5

18.5

18.5

18.5

21

20

20 

19.5

601.0

19.4 

1,190

Sept.

19 .5

18.5

19.5

18.5 

18.5

18.5

18.5

19.5

19.5

18

17

17

17 

18

18

18

18

17

17

18

17

17

19.5

18

18.5

18

18

18

18

23

548.5

18.3 

1,090

Calendar year 1950: Max - Mln - Mean - Ac-ft

Water year 1950-51: Max 499 Mln 6.5 Mean 95.3 Ac-ft 63,970

* Discharge measurement made on this day.

a Mo gage-height record; discharge estimated on basis of records for Mill Creek near Colville.

b Stage-discharge relation affected by Ice.

288995 O - 54 - 17
248 PEND OREILLE RIVER BASIN

Pend Oreille River below Z Canyon, near Metaline Falls, Wash. 

(International gaging station)

Location. Lat 48°59', long. 117°21', in lot 2, sec. 11. T. 40 N., R. 43 F., on right bank

 three-quarters of a mile downstream from Z Canyon, If miles south of irternational boundary, 5 miles downstream from Slate Creek, and 10 miles downstream from town of Metaline 

Palls.

Drainage area. 25,200 sq mi, approximately.

Records available. November 1908 to September 1910 (gage heights only), October 1912 to

 September 1951. Published as Clark Pork at Metaline Palls prior to October 1928 and as

Clark Pork below Z Canyon, near Metaline Palls October- 1928 to September 1937. *,lt 

Gage. Water-stage recorder. Datum of gage is 1,721.80 ft above mean sea level!, datum of

 1929 (levels by Corps of Engineers). Prior to Dec. 19, 1928, staff gag-es at Metaline

Palls about 10 miles upstream at datum approximately 262.2 ft higher. 

Average discharge. 39 years (1912-51), 26,190 cfs. 

Extremes. Maximum discharge during year, 109,400 cfs May 31, June 1 (gage height, 44.27

 ft); minimum, 10,500 cfs Oct. 2 (gage height, 12.40 ft).

1912-51: Maximum discharge, 171,300 cfs June 13, 1948 (gage height, 60.25 ft); minimum, 2,500 cfs Dec. 12, 1919 (gage height, -2.4 ft, site and datum fcher in use). 

Remarks. Records good. Water diverted above station for many uses, but principally for

 Irrigation. In 1946 there were diversions for irrigation of about 339,300 acres, and 

there probably has not been any appreciable change since that time. Plow affected by 

natural storage in Pend Oreille Lake (see p. 243), some regulation by Plathead Lake (see 

p. 239), and by smaller reservoirs in Pend Oreille River basin in Montara (see following 

page).

Cooperation. This Is one of the International gaging stations maintained by the United 

States under agreement with Canada.

Revisions (water years). W 442: 1913.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

12.5

13.0

14.0

15.0

16.0

10,800

12,200

15,300

18,800

22,600

18.0

20.0

23.0

27.0

31.0

29,300

35,400

44,600

56,800

69,000

35.0 81,200

40.0 96,400

45.0 111,600

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

Ac-ft

Oct.

11,000 

10,900

10.800

16,866

11,000

11,200

11,000

11,000

11,300

11,300

11,600

11,700 

11,900

11,900 

12,200

12,100 

12,500

13,000

13,000

13,300

13,800

14,400

 14,900 

15,600

17,000

18,100

18,700

18,600 

18,900

19,900

20 t 700

424,100

13,680

0.543

0.63

841,200

Nov.

21,200 

22,100

22,90O

23,600

24,700

25,000

25,300

25,000

25,300

25,300

25,100

25.400 

25,400

 24,900 

24,400

24,300 

23,900

23,400

22,900

22,900

22,700

21,600

21.100 

21,900

21,700

21,800

21,700

21,400 

21,100

21,200

-

699,200

23,310

0.925

1.03

*1,387

Dec.

21,700 

21,400

21,400

21,500

21,500

21,600

21,600

2-1,300

21,200

21,100

20,800

20,500 

 20,100

19.800 

26,566

20,700 

21,300

21,800

22,400

22,900

23,200

23,900

24,600 

26,100

27,700

28,700

29,300

30,600 

31,000

31.600

31,660

733,900

23,670

0.939

1.08

11,456

Jan.

32,000 

52.400

31,866

31,700

31,200

31,300

31,200

31,000

31,000

30,900

30,600

30,500 

30,300

30,000 

29,800

30,6OO 

31,000

31,700

32,000

32,000

31,400

30,500

 29,600 

29,000

 28,600

28,100

27,500

28,200 

25,400

21,600

20.700

923,600

29,790

1.18

1.36

*1,83Z

Feb.

21.900 

23,S66

23,300

23,700

23,400

23,000

23,600

24,400

25,200

25,600

26,500

27,900 

30,300

32,400 

34,200

35,000 

35,200

55.700

35,666

35,600

35,300

35,200

35,200 

34,900

34,900

34,400

34,200

34,000

_

-

844,100

30,150

1.20

1.25

*1,674

Mar.

33.400 

33,266

33,100

32,900

32,800

32,000

30,700

29,500

28,300

29,000

29,200

28,800 

 28,500

27,900 

27,400

26,500 

25,600

26,000

26,000

25,600

25,300

24,800

24,500 

24,300

24,400

24,500

24,100

24.000 

24,266

24,500

24,400

855,400

27,590

1.09

1.26

*1,697

Apr.

24.700

25,666

25,300

25,900

26,400

27,200

28,200

29,300

29,900

30,900

32,000

33,000 

34,000

34,800 

36,200

37,300 

38,300

39,400

40,200

41,700

42,400

42,70O

 43,000 

43,500

43,800

43,900

44,000

44,200 

44,900

45.000

-

«., 077.1

35,900

1.42

1.59

*2,136

May

45.600

46,500

47,700

49,200

51,000

52,400

54,400

55,900

58,300

61,300

65,100

69,000 

72,900

77,300 

81,500

85,700 

89,20O

92,000

93,900

 95,900

97,900

99,500

101,100 

 102,000

103,000

104,100

105,600

106,800 

107,600

108,500

109.200

*2, 490.1

80,330

3.19

3.67

*4,939

June

109.200

 108,800

107,800

105,700

102,700

99,000

94,600

90,600

87,600

85,100

82,900

81,200 

 79,600

78,000 

76,900

76.000 

76,666

77,300

79,600

82,200

84,700

86,300

 87,200 

86,700

85,700

83,700

82,400

82,100 

81,400

80,200

-

*2, 621.2

87,370

3.47

3.87

*5,199

July

78.700 

7^,206

75,000

73,200

71,100

 69,200

67,300

66,900

66,500

66,500

65,800

64,400 

63,000

61,400 

59,300

57,200 

55,500

54,500

53,2iOO

51,600

50,000

48,800

47,400 

46,2100

44,9100

43,400

41,800

39,700 

37,700

 36,200

ss.ono

*1,768.6

57,050

2.26

2.61

*3,508

Aug.

54.200 

33,566

32,400

31,000

29,700

28,500

27,500

26,700

25 i 900

25,200

24,600

24,000 

23,000

22,300 

21,800

21,30O 

20,900

20,400

20,100

20,000

19,700

18,800

17,600 

 16,800

16,400

16,100

15,900

16,000 

16,300

15,900

15.500

697,800

22,510

0.893

1.03

*1,384

Sept.

15,000 

14,700

15,000

14,900

14,600

14,400

 14,200

14,000

14,000

14,700

15,000

15.100 

15,666

15,000 

15,000

15,000 

14,800

14,700

14,400

14,100

14,200

14,100

14,200 

14,100

14,000

13,700

15.500

13,666

13,600

13,600

-

432,200

14,410

0.572

0.64

857,300

Calendar year 1950: Max 127,800 Mln 10,800 Mean 37,270 Cfsm 1.48 In. 20.09 Ac-ft 26,980,000

Water year 1950-51: Max 109,200 Mln 10,800 Mean 37,170 Cfsm 1.48 In. 20.02 Ao-ft 26,910,000

Discharge measurement made on this day. 

* Expressed In thousands.
FEND OREILLE RIVER BASIN 249

Smaller Reservoirs in Fend Oreille River basin, Mont.

Georgetown Lake on Flint Creek, 2 miles west of Southern Cross. Storage began about 1905 

ror pumpage Into Warm Springs Creek for use of reduction works of Anaconda Copper Mining 

Co. at Anaconda, or for release through Flint Creek for power development. Usable capacity, 31,000 acre-ft. Records furnished by The Montana Power Co.

East Pork Rock Creek Reservoir on East Fork Rock Creek, 14 miles southwest of Phillpsburg. 

Storage began in 1338 for irrigation In Flint Creek Valley; usable capacity, 16,000 

acre-ft. Records furnished by Montana State Water Conservation Board.

Nevada Creek Reservoir on Nevada Creek, 7 miles west of Finn. Storage began in 1939 for 

irrigation; usatle capacity, 12,600 acre-ft. Records furnished by Montana S^-ate Water 

Conservation Board.

West Pork Bitterroot River Reservoir on West Fork Bltterroot River, 7 miles upstream from 

Nez Perce Creek and 23 miles south of Darby. Storage began In 1940 for Irrigation; 

usable capacity, 31,700 acre-ft. Records furnished by Montana State Water Conservation 

Board.

Como Lake on Rock Creek, 4 miles northwest of Darby. Storage began in 1909 for irrigation; 

usable capacity, 34,800 acre-ft. Records furnished'by Bitterroot Irrigation District.

Camas Reservoirs comprise a group of four reservoirs in Little Bitterroot River basin, 

which are operated for irrigation. Records furnished by Office of Indian Affairs. 

Little Bitterroot Lake on Little Bitterroot River, 2 miles southwest of Marion, storage 

began in 1918; usable capacity, 24,000 acre-ft. Hubbart Reservoir on Little Bitterroot 

River, 9 miles northwest of Niarada; storage began in 1924; usable capacity, 12,100 

acre-ft. Upper Dry Fork Reservoir on Dry Fork Creek, 4 miles northwest of Lonepine; 

storage began in 1940; usable capacity, 2,700 acre-ft. Dry Fork Reservoir on Dry Fork 

Creek, 1 mile west of Lonepine; storage began in 1921; usable capacity, 4,000 acre-ft.

Mission Valley Reservoirs comprise a group of eight reservoirs in the area east of and 

tributary lo Flathead River between Flathead Lake and Jocko River, which are operated 

for irrigation. Records furnished by Office of Indian Affairs. Twin Reservoir, fed 

entirely by canals, 4 miles southeast of Poison; storage began in 1932; usatle capacity, 

1,210 acre-ft. Pablo Reservoir, fed entirely by canals, 3 miles south of Prison; storage began in 1914; usable capacity, 25,000 acre-ft. Lower Crow Reservoir or Crow Creek, 

6 miles west of Ronan; storage began in 1933; usable capacity, 10,350 acre-ft. Kicking 

Horse'Reservoir, fed entirely by canals, 5 miles south of Ronan; storage bepan in 1930; 

usable capacity, 8,350 acre-ft. Nine-pipe Reservoir, fed entirely by canals, 2 miles 

northeast of Charlo; storage began in 1911; usable capacity, 14,870 acre-ft. McDonald 

Reservoir on Post Creek, 9 miles east of Charlo; storage began in 1919; usaf.e capacity, 

8,220 acre-ft. Mission Reservoir on Mission Creek, 4 miles east of St. Ignrtius; storage began in 1935; usable capacity, 7,250 acre-ft. Tabor Reservoir on Dry Creek, 

8 miles southeast of St. Ignatius; storage began in 1919; usable capacity, 23,000 

acre-ft.

Lower Jocko Lake on Middle Fork Jocko River, 15 miles east of Arlee. Storage began in 

1937; usable capacity, 7,600 acre-ft. Records furnished by Office of Indian Affairs.

Thompson Falls Reservoir on Clark Fork* at Thompson Falls. For power development, usable 

capacity, 15,000 acre-ft. Records furnished by The Montana Power Co.

Other reservoirs of small capacity, principally on tributaries of Bitterroot River, are 

operated for irrigation.

Monthly change In contents, In acre-feet, water year October 195O to September 1951

Month

(Contents Sept. 30).

December ............

Calendar year 1950

Mftv

August

(Contents Sept. 3o) .

Water year 1950-51

Month

(Contents Sept. 30).

Calendar year 1950

May.................

(Contents Sept. 30).

Water year 1950-51

Georgetown 

Lake

(25,910)

+440

+30

+3 , 67O

(28,810)

+2,900

Camas 

Reservoirs

(35,020)

+790

+7,290

(36,300)

+1,280

East Pork 

Rock Creek 

Reservoir

(10,480)

-

-

_

(8,900)

-1,580

Mission 

Valley 

Reservoirs

(23,710)

+7,460

+20,110

(22,250)

-460

Nevada 

Creek 

Reservoir

(8,040)

-

-

b(6,750)

-1,290

Lower 

Jocko 

Lake

(2,150)

-

+470

-200

(1,990)

-160

West Fork 

Bitterroot 

'River Reservoir

(26,710)

aO

+9,350

(31,060)

+4,350

Thompson 

Falls 

Reservoir

(11,650)

-2,230

-1,920

+150

-3,460

+4,630

+140

(14,390)

+2,740

Como 

Lake

(8,900)

+2,610

+10,970

-2,610

0

-3,320

+12,870

-12,290

(7,600)

-1,300

a Interpolated on basis of readings made weekly or less frequently, 

b Prom figure of contents for first day of following month, 

c 6-month period, 

d 8-month period.
250 COLUMBIA RIVER MAIN STEM

Columbia River at international boundary 

(International gaging station)

Location. Lat 49°00'03", long. 117°37'40", In SE£ sec. 4, T. 40 N., R. 41 E., on left 

bank at international boundary, half a mile downstream from Pend Oreille River.

Drainage area. 59.700 sq mi, approximately. 

Records available. March 1938 to September 1951.

Page. Water-stage recorder. Datum of gage is at mean sea level (Bureau of Reclamation 

1937 datum). Prior to Apr. 27, 1939, staff gage at same site and datun. Since May 31, 

1942, auxiliary water-stage recorder 2.2 miles downstream from base gage. Auxiliary 

staff gage Jan. 1 to May 30, 1942, at same site.

Average discharge. 13 years, 93,410 cfs.

Extremes. Maximum discharge during year, 332,800 cfs May 27 (elevation, 1,324.28 ft); 

minimum, 41,200 cfs Feb. 1 (elevation, 1,294.73 ft).

1938-51: Maximum discharge, 550,100 cfs June 12, 1948 (elevation, 1,338.13 ft); 

minimum, 20,700 cfs Mar. 9, 1944 (elevation, 1,289.91 ft).

Flow of about 12,900 cfs occurred Jan. 30 or 31, 1937, based on information from 

other gaging stations (elevation, 1,287.9 ft), from rating curve extended below 

1,291.6 ft); may have been as low sometime in January 1930.

Remarks.--Records excellent except those for periods of no gage-height record, which are 

fair. Many diversions above station for irrigation. It was estimated that 346,700 

acres were under irrigation in the United States in 1946. Water is diverted for the 

irrigation of an additional 25,000 acres in Canada. The flow is affected by internationally controlled storage in Kootenay Lake as well as by natural and controlled 

regulation in lakes and reservoirs in Pend Oreille River basin.

Cooperation. This station is one of the international gaging stations maintained by the 

united States under agreement with Canada.

Revisions (water years). W 932: L937(m), 1938(M), 1939(m).

Discharge, In cubic feet per second, water year October 195O to Septemle;>r 1951

Day

1 

2

3

4

5

6

7

8

9

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 am

In.

Ae-ft

Oct.

54,900 

 55,100

51,500

50,900

49,800

49,1OO

48,500

49,300

52,100

57,900

53,700

47.600

56,466

55,800

55,400

53,000

52,600

55,200 

57,200

 61,700

61,200

61,000

60,500

60,900

60,600

63,900

67,000

67,200 

67,100

70,000

74.200

*1,775.3

57,270

0.959

1.11

*3,521

77.700 

75,300

69,900

65.2OO

66,200

67,300

66,900

65.2OO

63,800

61,500

6O,600

58,700

57,500

57,200

 57,900

a61,8OO

61,6OO

56,400 

52,000

52,100

49,700

49.500

SS'&SO

53,000

52,600

53,700

53,600

52, BOO 

52,800

55,600

-

«.,781.6

59,390

0.995

1.11

*3,534

55,000 

52,200

52,300

51,200

48,800

SO, 300

47,200

46,300

46,400

45.300

50, 10O

48,200

47,800

49,400

 50,100

48,800

49,000

49,500 

SO, 60O

50,100

51,600

52,900

56,400

63,100

73,200

77,900

81,300

81.700 

79^000

73,700

69,000

* 1,748. 4

56,400

0.945

1.09

*3,468

67,200 

7O.9OO

70,300

67,800

64,800

63,000

63,400

61,600

61,300

64,200

 65,200

65,300

65,100

65,200

67.00O

65,000

65,300

63,700 

62,900

59,400

58,200

55,700

55,300

 56,100

55,700

56,100

57,300

56,900 

50,700

45,400

42.100

tl, 888.1

60,910

1.02

1.18

*3,745

42.100 

44,7OO

45,200

48,700

48,000

48,400

50,300

50,900

53,700

58,200

64, 80O

67,300

71,200

75.3OO

80,000

82,100

81,800

82.300 

81,200

8O.70O

79,300

78,000

76,800

75.OOO

73,200

70,900

69,500

67,800

-

-

*L, 8*7. 4

65,980

1.11

1.15

*3,664

Mar.

65.800 

65, 166

63,3OO

62,500

62,400

60,6OO

57,000

55,200

51,800

51,000

51,800

52,100

51,600

 51,900

52,500

52,400

52,600

54,000 

53,400

52,500

51,300

50,200

49,000

48,200

47,500

46,900

46,300

46,200 

46,400

46,200

45.900

: 1,643. 6

53,020

0.888

1.02

*3,260

Apr.

46.400

47,866

47,000

52,400

54,200

56,000

59,800

62,600

63,900

65,600

67,800

70,300

74,100

77,200

79,600

82,3OO

86,000

89,100 

 90,400

92,600

93,400

a94,200

a95,100

a95,200

a96,30C

a97,90C

a99,10C

alOO, 100 

al02,30C

al03.90C

-

*2,342.6

78,090

1.31

1.46

*4,646

May

1106.400

al08, 700

111,900

116,400

123,900

130, 800

139,500

1*7,100

157,200

170,200

187,000

207,300

222,200

235,800

 249,700

262,600

274, 80C

284,000 

 288,900

294,500

299,300

304,200

»312,10C

318,800

321,900

326,100

329. 40C

327, OOC 

323,600

320,100

312,200

*7,313.6

235,900

3.95

4.56

t 14, 510

June

 305.000

29?! ,9M

290,100

286,800

280,900

272,500

263,400

253, 20C

246,500

239,200

234.900

236, 30^

239,200

245,900

»258,300

269,400

280,000

289, 40C 

296,000

299,600

301,500

300,600

298,100

296,500

 292,100

286,600

284,600

282,400 

277,200

273,700

-

(8,277.6

275,900

4.62

5.16

t 16, 420

July

269,900 

267,000

265,400

267,100

269,500

271,900

273, 80C

276,200

277,400

278.700

278,600

274,300

271,600

269,700

267,900

266,100

263,900

266,200 

266,300

264,200

260, 3OC

255,400

249,300

242,300

235,800

229,600

223,700

217,800 

212,800

207,100

202. 50C

*7, 942.1

256,200

4.29

4.95

*15,750

Aug.

"197.200

167,' 500

181,900

176,600

170,800

165,800

159, 80C

153,300

145,900

139,500

130,200

122,900

116,400

109,800

102,500

100,300

98,800 

97,400

96, OOC

95,400

93.6OC

90,600

89,700

 91,600

91,300

89,900

89,900 

91,300

90,000

87.500

t3,845.2

124,000

2.08

2.40

*7,627

Sept*

88.500 67,866

86,500

85,200

81.7OO

74.4OO

73,100

72,200

71,400

73,100

74,000

72,200

70,900

69,100

67,300

66,300

65,200

63,200 

61,800

60,400

59,300

61,000

57,900

58,000

60,400

62,100

57,800

56,900 

56.400

59.S66

-

t2, 053.1

68,440

1.15

1.28

*4,072

Calendar year 1950: Max 459,000 Mln 31,400 Mean 115,200 Cfsm 1.93 In. 26.20 Ac-ft 83,400,000

Water year 1950-51: Max 329,400 Mln 42,100 Mean 116,300 Cfsm 1.95 In. 26.47 Ae-ft 84,220,000

* Discharge measurement made on this day.

t Expressed In thousands.

a No gage-height record at either base or auxiliary gage; fall Interpolated.
KETTLE RIVER BASIN 251

Kettle River near Perry, Wash. 

(International gaging station)

Location. Lat 48°S8'4011 , long. 118°46'10", in lot 7, sec. 10, T. 40 N., R. 32 E., on 

right bank 1£ miles south of international boundary and Perry and 3 miles upstream 

from Toroda Creek.

Drainage area. 2,220 sq mi, approximately. 

Records available. August 1928 to September 1951.

Gage . Water-stage recorder. Datum of gage is 1,836.8 ft above mean sea level, International Joint adjustment of 1947. Prior to Sept. 27, 1928, staff gage at same site 

and datum.,

Average discharge. 23 years, 1,404 cfs.

Extremes. Maximum discharge during year, 15,000 cfs May 13 (gage height, 18.79 ft); minimum not determined, probably occurred sometime during period of ice effect.

1928-51: Maximum discharge, 21,200 cfs May 29, 194B (gage height, 21.15 ft); minimum, 14 cfs (discharge measurement) Jan. 23, 1930, but may have been less during period 

of ice effect Jan. 18-23, 1930.

Remarks. Records excellent except those for periods of ice effect, which are fair, 

eral small diversions above station for irrigation. No regulation.

SevCoc aeration. This station is one of the International gaging stations 

united States under agreement with Canada.

aintained by the

Rating table, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

9.7 

1O.O 

10.5 

11.0

180

288

534

880

12.0

14.0

16.0

18.5

1,790

4,360

8,360

14,200

Discharge, in cubic feet per second, water year October 1950 to September 1351

Day

1

2

3

4 ' 5

6

7

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

183

T55

19O

187

187

196

206

261

284

416

 436

416

392

416

452

473

452

421

402

406

478

523

484

 436

426

411

473

528

528

523

478

11,854

382

23,510

Nov.

468

442

426

416

442

478

478

447

397

354

327

331

340

368

377

387

327

322

340

345

345

322

327

336

368

436

500

 523

-

11,610

387

23,030

Dec.

452

345

280

230

200

200

220

36S

436

462

473

489

517

4S9

462

436

457

447

442

436

416

426

426

436

468

540

588

588

594

13,512

436

26,800

Jan.

§58

5TZ

420

340

250

 245

24O

240

240

250

260

270

290

32O

350

360

370

380

382

397

402

 421

411

411

416

489

421

193

170

Teo" 160

10,328

333

20,490

Feb.

Teo" 160

160

160

250

200

190

180

300

387

436

380

370

370

380

450

534

525

523

506

506

500

500

490

473

478

 470

460

.

_

-

10,501

375

20,830

Mar.

450

450

440

411

402

370

540

345

340

340

340

359

382

392

416

406

402

397

431

447

484

512

523

489

512

540

570

588

588

64O

681

13,982

451

27,730

Apr.

25g

H3?

1,020

1,390

1,940

2,160

2,330

2,570

2,630

2,570

2,510

2,940

3,900

4,690

4,690

 4.86O

5,600

6.200 57fra

4,860

4,360

4,050

3,750

3,540

3,750

4,050

4,520

5.040

6,000

5,800

-

108,692

3,623

215,600

May

5,410

4,860

 4,690

5,220

6,830

8,810

9,730

10,900

11,800

12,300

12,800

13,500

14.000

ii,S66

10,200

9,960

11,100

11,600

 1O.2OO

8,580

8,140

 9,040

10,900

12,500

10,400

-7,920

7.O40

6,620

6,000

5,040

4.520

231,910

9,094

559,200

June

4,200

4,200

4,200

 4,690

5,040

4,690

4,360

4,050

4,520

4,860

5,040

5,410

5.600

57250"

5,600

5,600

4,520

4,050

3,750

3,540

3,330

 3,140

3,000

3,200

3,140

2,880

2,690

2,510

2,280

2.160

-

121,470

4,049

240,900

July

2.22O

2,220

2,110

2,110

2.510

2,330

2,510

2,220

2,000

1,840

1,690

1,490

1,390

1,300

1,200

1,100

1,020

944

880

832

772

730

674

627

594

552

517

489

457

426

402

40,156

1,295

79,650

Aug.

377

 359

331

318

301

288

272

276

265

245

261

268

292

354

363

340

297

280

253

227

220

203

203

196

187

183

T57

235

301

462

425.

8,839

285

17,530

Sept.

540

51|

485

431

392

354

336

327

301

305

 292

280

272

265

253

242

227

220

213

203

193

200

196

190

190

187

2t£

284

268

 276

-

8,726

291

- 17,310

Calendar year 1950: Max 11,800 Mln 117 Mean 1,473 Ae-ft 1,066,000

Water year 1950-51: Max 14,000 Mln 160 Mean 1,758 Ae-ft 1,273,000

Peak discharge d (base. 8.000 efs). May 13 (2 a.m.) 15,000 cfs (18.79 ft); May 24 (4 p.m.) 12,800

fs (17 

* Disc

cfs (17.93 ft).

scharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 3-7, Jan. 3-18, Jan. 29 to Feb. 9, Feb. 12-16, 

22^517 Feb. 27 to Mar. 3, Mar. 6-11.
2S2 KETTLE RIVER BASIN

Curlew Creek near Malo, Wash.

Location. Lat 48"46'00", long. HS^'IC", in NW£ sec. 28, T. 38 N., R. 33 E., on left 

bank a quarter of a mile downstream from Curlew Lake, and 3 miles southwest of Malo.

Drainage area. 69.3 sq mi.

Records available. April to September 1951.

Sage. Water-stage recorder. Altitude of gage is 2,330 ft (from topographic map).

Extremes .--Maximum discharge observed during period, 169 cfs Apr. 16 (gag<? height, 4.35 

ft), result of discharge measurement; minimum, 2.7 cfs Sept. 18 (gage height, 2.01 ft),

Remarks. Records good except those for period of no gage-height record, which are poor. 

No regulation or diversion. At high stage and during irrigation seasoT water from 

Sanpoil River is sometimes diverted into this basin above Curlew Lake.

Rating table, Apr. 26 to Sept. 30, 1951 (gage height, 

in feet, and discharge, in cubic feet per second)

2.0

2.1 

2.5 

3.0 

4.0

3.0

6.5

24

49

131

Discharge, in cubic feet per second, April to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. Nov. Dec.

Calendar year : Max

Jan. Feb.

Mln

Mar. Apr.

-

_

.

-

_

.

_

_

-

_

_

-

t!69

-

.

-

_

-

_

_

-

122

122

123

125

124

-

_

_

-

Mean

May

123 

121

120

119

121

123

127

131

132

130

132

T3T

130

127 

122

117

113

107

102

 98

95

92

91

86

83

80

78

75

72

69

66

3,314

107

6,570

June

If

61

 60

60

60

56

52

52

52

50

50

50

50 

50

48

48

46

44

42

 42

42

41

40

39

38

36

35

35

33

1,440

48.0

2,860

Jul1!

35

35

35

3?

31

31

31

30

302 '9

29

2? 

2?

27

27

26

25

2<t

25

22Z"

19.5

18.5

17

16.5

16.5

16

16

i5

793.0

25.6

1,570

Aug.

»iH 14'

14

13.5

12.5

12

12

12

11.5

11.5

12

12

11.5 

11

10.5

10

9.5

9.1

8.8

8.4

7.9

7.6

7.2

7.0

6.9

6,8

7.0

7.3

7.8

8.4

318.7

10.3

632

Sept.

9.0 

9.4

9.6

9.4

9.0

8.6

9.0

8.2

7.3

6.9

5.5

4.8

4.0

w

4.0

3.7

3.4

3.4

3.7

4.4

4.8

4.4

4.8

5.1

6.5

7.8

9.4

10.5

12.5

-

196.7

6.56

390

Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day. 

t Result of discharge measurement.

Mote. No gage-height record Aug. 9 to Sept. 4; discharge estimated on basis of records for nearby 

stations, recorded range In stage, and weather records.
KETTLE RIVER BASIN 253

Kettle River near Laurier, Wash. 

(International gaging station)

Location.--Lat 48°59'10", long. 118°13'00", in NW£ sec. 11, T. 40 N., R. 36 E., on right 

bank 500 ft downstream from Deep Creek, 1-J miles southeast of Laurier, and 12 miles upstream from Boulder Creek.

Drainage area. 3,800 sq mi, approximately.

Records available.--September 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,425.5 ft above mean sea level, international Joint adjustment of 1947. Prior to Jan. 3, 1930, staff gage at same site at 

datum 2.14 ft higher.

Average- discharge.--22 years, 2,734 cfs.

Extremes. Maximum discharge during year, 26.700 cfs May 13 (gage height, 14.90 ft); minimum, 320 cfs Oct. 1 (gage height, 2.85 ft).

1929-51: Maximum discharge, 35,000 cfs May 29, 1948 (gage height, 17.25 ft); minimum not determined, probably occurred during winter of 1929-30.

Maximum stage known, about 22 ft in May or June 1894, from information by local residents .

Remarks. Records excellent except those for periods of ice effect or no gage-height record, 

which are poor. North Pork regulated by reservoir at Grand Forks, British Columbia. 

Numerous diversions for irrigation of about 720 acres in the United States (for 1946 from 

United States reports), and 2,090 acres in Canada from the Canada Year Book for 1940. 

Some "diversion for domestic use.

Cooperation. This station is one of the International gaging stations maintained by the 

united states under agreement with Canada.

1930-31. W 862: 1937. W 882: 1938.

agreement 

Revisions (water years). W 737:

Rating table, water year 1950-51, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.8 

3.7 

5.0

297

805

1,910

7.0

10.0

14.6

4,740

11,100

25,600

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7 

8

9

10

11

12

13 

14

15

16 

17

18 

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

325

354

344

354

354

354

379 

404

441

511

614

»682

663 

669

688

753 

772

772 

734

734

826

889

910

861

833

861 

1,020

1,140

1.180

1,180

1,180

21,781

703

43,200

Nov.

1,100 

1,060

1,060

1,020

1,020

1,100

1,100 

1,100

1,060

960

938

924

854 

833

882

»896 

931

896 

868

826

819

S35

826

819

819

833 

882

1,020

1,180

1.220

-

28,679

956

56,880

Dec.

1,220 

1,010

900

800

700

700

700 

938

1,060

1,140

1,180

1,220

1,220 

1,220

1,180

»1,180 

1,180

1,180 

1,180

1,180

1,180

1,180

1,220

1,340

1,610

1.910 

1,910

1,910

1,860

1,810

1,810

38,828

1,253

77,010

Jan.

al.750 

al,700

al,600

al.500

»1,300

1,100

1,000 

931

900

900

900

950

1,000 

1,050

1,100

1,100 

81,100

al.100 

ai,loo

ai.ioo

ai,ioo

ai.ioo

 1,140

1,140

1,140

1,180 

1,000

700

550

550

500

33,281

1,074

66,010

Feb.

155

500

500

650

550

550 

550

600

1,060

1,050

1,050

1,050 

1,000

1,100

1.660 

1J660

1,660 

1,560

1,560

1,560

1,520

1,460

1,430

1,430

1,380 

1,340

1,300

_

-

-

30,750

1,098

60,990

Mar.

1,300 

1,260

1,220

1,260

1,260

1,140

1,180 

1,140

1,050

1.000

1,000

1,000

1,100 

1,140

»1,220

1,220 

1,140

1,140 

1,140

1,180

1,220

1,260

1,300

1,260

1,260

1,340 

1,430

1,480

1,560

1,610

1.760

38,570

1,244

76,500

Apr.

1.910 

2,190

2,760

3,700

4,910

5,640

5,640 

6,210

6,410

6,020

6,020

6,410

8,070 

9,890

10,400

10,400 

*10,900

11.900 

11,906

10,100

9,190

8,510

7,850

7,640

7,640

8,290 

9,190

10,100

11,600

11,900

-

233,290

7,776

462,700

May

11,100 

10,100

9,650

»9,890

11,400

15 , 600

17,500 

19,100

20,700

21,700

22,400

24,900

25.600 

21^000

17,800

17,500 

18,700

»20,700 

 19,100

15,900

14,400

 15,300

17,800

21,000

19,200

14,700 

13,000

12,200

11,400

9,890

8.750

507,960

16,390

*1,008

June

8,070 

7,850

»8,070

8,290

9,190

8,730

8,070 

7,640

8,070

8,730

9,420

10,100

10,600 

10,400

10,600

11.100 

9,190

8,070 

7,640

7,220

6,810

 6,210

6,020

6,210

6,210

5,830 

5,450

5,090

4,740

4.400

-

234,020

7,801

464,200

July

4,400 

4,400

4,240

4,080

4,570

4,570

4.740 

4,406

3,840

3,540

3,320

2,970

2,760 

2,500

2,370

2,190 

2,020

1,910 

1,810

1,610

1,520

1,480

1,380

1,300

1,260

1,180 

1,100

1,020

998

931

889

79,298

2,558

157,300

Aug.

840 

 779

746

708

663

626

597 

573

568

545

556

539

579 

614

675

657 

614

556 

517

484

462

436

420

415

410

 399 

355

451

562

746

661

17,997

581

35,700

Sept.

910 

"SfT 952

840

766

714

675 

638

626

602

585

573

550 

539

517

506 

484

468 

446

425

420

410

404

399

355

399 

420

436

 489

500

-

17,023

567

33,760

Calendar year 1950: Max 20,000 Mln 257 Mean 2,862 Ae-ft 2,072,000

Water year 1950-51: Max 25,600 Mln 325 Mean 3,511 Ae-ft 2,542,000

Peak discharge (base. 15.000 cfs). May 13 (5 a.m.) 26,700 efs (14.90 ft); May 24 (9 p.m.) 22,100 

cfs (13.58 ft).

* Discharge measurement made on this day.

t Expressed In thousands.

a No gage-height record; discharge estimated on basis of records for station near Ferry.

Note. Stage-discharge relation affected by Ice Dee. 3-7, Jan. 9-16, Jan. 27 to Feb. 9, Feb. 11-15, 

MafT~5-12.
254 COLVILLE RIVER BASIN

Loon Lake near Loon Lake, Wash.

Location. Lat 48°01'45", long. 117 036'15", in NW£ sec. 11, T. 29 N., R. 41 E., at south 

end of Loon Lake, 2.7 miles southeast of town of Loon Lake. Prior to Sept. 29, 1951, 

at site 0.2 mile north on east shore.

Drainage area. 33.4 sq mi.

Records available. April 1950 to September 1951.

Gage. Water-stage recorder. Datum of gage is at mean sea level, unadjusted. Prior to 

Sept. 29, 1951, water-stage recorder at site 0.2 mile north at present datum.

Extremes. Maximum elevation during year, 2,381.78 ft Apr. 18; minimum recorded, 2,380.11 

ft Sept. 28, 29.

1950-51: Maximum elevation, 2,382.71 ft (revised) May 3, 1950; mirimum recorded, 

that of Sept. 28, 29, 1951.

Revisions. The maximum elevation for the water year 1950 has been revised to 

2.3&2.71 ft May 3, 1950, superseding figure published in Water-Supply Paper 1182.

Remarks. Elevation controlled by dam at lake outlet. Some small diversions for Irrigation of lawns and gardens.

Revisions. Elevations for the period April to September 1950 as published in WaterSupply Paper 1182, are 0.08 ft too high.

Elevation, In feet, water year October 1950 to. September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

80. 86

80.85

80.84

80.85

80.92

80.92

80.91

80.92

80.92

80.93

80.93

80.94

80.94

80.94

80.94

80.93

80.94

80.94

80.94

80.96

80.96

80.96

80.94

80.94

80.94

80.96

80.96

80.98

81.01

81.08

81.11

NOT.

81.10

81.11

81.11

81.11

81.11

81.10

81.10

81.10

81.09

81.09

81.08

81.08

81.08

81.08

81.08

81.12

81.13

81.12

81.12

81.14

81.15

81.14

81.13

81.16

81.18

81.18

81.19

81.19

81.19

81.23

Dec.

81.28

81.27

81.29

81.30

81.29

81.31

81.33

81.33

81.33

81.34

81.34

81.34

81.34

81.35

81.36

81.39

_

_

-

.

_

_

-

_

_

_

_

.

-

Jan.

_

_

_

_

-

_

_

_

-

 .

_

.

_

-

_

_

_

-

_

_

_

_

-

_

_

_

_

_

-

Feb.

_

_

_

_

-

_

_

_

-

_

_

_

_

-

_

_

_

-

_

_

_

_

-

^

_

_

.

_

-

Mar.

_

_

.

_

-

_

_

_

_

-

_

_

.

_

-

_

_

_

-

_

81.36

81.34

81.31

81.27

81.25

81.22

81.20

81.19

81.18

81.18

Apr.

81.20

81.22

81.27

81.32

81.38

81.45

81.50

81.55

81.58

81.62

81.65

81.68

81.70

81.73

81.74

81.76

81.77

81.78

81.77

81.75

81.74

81.72

81.70

81.68

-

_

81.63

81.71

_

-

May

_

_

_

_

-

_

_

_

_

-

_

_

_

_

-

.

_

_

_

-

_

..

_

_

-

_

_

_

..

_

81.45

June

81.45

81.45

81.44

81.46

81.48

81.49

81.50

81.50

81.50

81.50

81.49

81.50

81.50

81.50

81.50

81.49

81.47

81.47

81.45

81.44

81.42

81.41

81.40

81.39

81.38

81.36

81.35

81.34

81.33

81.32

-

Jul^

81.30

81.29

81.29

81.28

81.27

81.26

81.25

81.24

81.23

81.21

81.19

81.18

81.17

81.16

81.14

81.12

81.11

81.10

81.07

81.05

81.03

81.01

81.00

80.99

80.98

80.95

80.94

80.93

80.90

80.88

80.87

Aug.

80.85

80.84

80.83

80.81

80.77

80.77

80.74

80.72

80.70

80.68

80.66

80.64

80.63

80.63

80.62

80.61

80.60

80.59

80.58

80.55

80.53

80.52

80.50

80.48

80.45

80.43

80.42

-

80.44

80.44

80.44

Sept.

80.43

.

-

-

80.38

.

-

_

_

-

_

_

.

-

-

_

.

-

_

-

_

_

_

-

-

.

_

80.11

80.11

80.15

-

Note. Add 2,300 ft to obtain elevation above mean sea level.
COLVILLE RIVER BASIN 255

Mill Creek near Colvllle, Wash.

Location. Lat 48°34'55", long. 117°51'00", in lot 3, in NWi sec. 35, T. 36 N., R. 39 E., 

on right bank; 3 miles northeast of Colville and 5 miles downstream from North Fork.

Drainage area. 82 sq mi, approximately.

Records available.--February 1940 to September 1951.

£.--Water-stage recorder. Datum of gage is 1,959.0 ft above mean sea level, datum of 

1929.

Average discharge. 11 years, 49.8 cfs.

Extremes. Maximum discharge during year, 413 cfs Apr. 14 (gage height, 4.56 ft); minimum, 

9.0 cfs Sept. 20 (gage height, 1.16 ft), but may have been less sometime during period 

of shifting control Sept. 22-25.

1940-51: Maximum discharge, 538 cfs May 4, 1948 (gage height, 5.25 ft); minimum 

recorded, 3.6 cfs Aug. 28, 31, Sept. 1, 1940, but may have been less during period of 

no gage-height record Feb. 1-4, 1940.

Remarks. Records good except those for periods of shifting control, which ar^ fair, and 

those for period of ice effect, which are poor. Diversion for irrigation of about 

50 acres above station. No regulation.

Revisions (water years). W 1042: 1940, 1942.

Rating table, water year 1950-51, except periods of Ice effect or shifting 

control (gage height. In feet, and discharge. In cubic feet per second)

1.1 

1.3 

1.5 

1.7 

2.O

7.1 2.5 

3.0 

3.5 

4.0 

4.5

105 

166 

237 

316 

4O4

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

9.7

tfTs

*10.5

12

15

16

15.5

16.5

24

19.5

17.5 

15.5

14.5

14

13.5

13

13.5

17

17.5

17.5

17

15.5

14.5

14

15

21

20

24

30

Jbi

41

560.7

18.1

0.221

0.25

1,110

Nov.

30 

26

24

23

22

22

21

19.5

18.5

16

18 

17.5

16.5

17

17

25

*26

23

19

20

20

21

20

2O

24

26

27

31

28

26

-

666.0

22.2

0.271

0.3O

1,320

Dec.

26 

24

22

20

18.5

23

24

23

22

24

26 

28

26

26

26

*26

33

36

37

43

50

54

72

100

106

87

77

73

70

73

73

1,368.5

44.1

0.538

0.62

2,710

Jan.

69 

69

67

60

51

44

45

54

51

50

5O 

47

47

47

48

47

45

43

42

4O

42

41

*4O

41

44

59

38

2% b3S

b30

b30

1,441

46.5

0.567

0.65

2,860

Feb.

b31 

b32

b33

b35

b37

b36

b37

40

60

92

m90

89

85

79

76

74

72

72

71

70

70

69

69

67

59

63

-

-

-

1,848

66.0

O.805

0.84

3,670

Mar.

62 

62

60

61

58

56

57

57

59

54

ff

54

54

*63

67

58

55

56

60

66

68

65

65

71

82

87

87

96

109

ill

2,069

66.7

0.813

0.94

4,100

Apr.

126 

154

193

260

308

316

333

350

316

300

300 

316

368

395

368

350

*359

368

324

292

268

244

230

222

214

214

222

252

284

260

-

8,506

284

3.46

3.86

16,870

May

||§

222

214

23O

230

230

230

222

214

214 

244

222

200

186

172

166

163

154

144

139

130

126

121

*116

114

110

106

103

98

92

5,394

174

2.12

2.45

10,700

June

||

*78

76

75

75

74

72

70

66

64 

66

62

59

55

53

51

5O

47

47

47

45

44

58

46

44

41

40

38

36

-

1,750

58.3

O.711

0.79

3,470

July

36 

37

34

33

34

35

33

31

31

30

29

27

26

26

24

24

 23

22

22

20

20

19.5

19

16

17.5

17

17

16

15

15

14^5

767.5

24.8

0.302

0.35

1.52O

Aug.

14 

13.5

13

12.5

12

12.5

13

13

13

12.5

12.5 

12.5

12.5

12.5

12

12

12.5

11.5

11.5

11

j.0.5

1O.5

11

11.5

11

*10. 5

10.5

12

14.5

15.5

15.5

382.5

12.3

0.150

0.17

759

Sept.

1H

14.5

12.5

13

12

12

12.5

12.5

12.5

11.5 

11.5

11

1O. 5

10

10

9.7

10

9.7

9^3

9.3

9.3

9.3

9.3

11

13.5

13

13

13.5

13.5

349.9

11.7

0.143

O.16

694

Calendar year 1950'. Max 330 Mln 7.5 Mean 53.9 Cfsm 0.645 In. 8.75 Ac-ft 38,300

Water year ,1950-51: Max 395 Mln 9.3 Mean 68.8 Cfsm O.839 In. 11.38 Ac-ft 49,78O

Peak discharge (base. 200 cfs). A

ft).; Apr. 29 (5 a.m.) 292 cfa (3.87 1

?r. 8 (2 a.m.) 377 ofs (4.33 ft); Apr. 14 (4 a.m.) 413 cfs (4,56 

ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Hote. Shifting-control method used Hov. 22 to Dec. 2, Dec. 4 to Jan. 15, Sept. 10-17, 22-25, 27-30.
256 COLVILLE RIVER BASIN

Colville River at Kettle Palls, Wash.

Location. Lat 48°35'40", long. 118"03'30" (revised), in sec. 29, T. 36 N., R. 38 E., on 

right bank 600 ft downstream from Stevens County Light & Power Co.'s plant at foot of 

Meyers Palls, half a mile south of town of Kettle Falls, and 2 miles upstream from 

Franklin D. Roosevelt Lake.

Drainage area. 1,050 sq mi, approximately.

Records 3TT available. October 1922 to September 1951. Published as "at Meyers Falls" 1922- 

Gage. Water-stage recorder. Altitude of gage is 1,500 ft (from topographic map). Prior 

to Oct. 21, 1932, staff gage at site 500 ft upstream, at different datum. Oct. 21, 193 

1932, to Sept. 19, 1938, staff gages at site 200 ft upstream at different datura. Sept. 

20, 1938,'to Mar. 20, 1949, staff gage at same site and datura.

Average discharge. 29 years, 272 cfs.

Extremes. Maximum discharge during year, 2,240 cfs Apr. 14, 15; maximum gage height, 9.30 

ft Apr. 14; minimum discharge, 29 cfs Oct. 4; minimum gage height, 4.£9 ft Oct. 4, 

Aug. 3.

1922-51: Maximum discharge observed, 2,720 cfs Apr. 20, 1938; minimum observed, 0.5 

cfs Aug. 15, 1930.

Remarks.--Records good except those for periods of ice effect, which are fair. Several 

ditches above station divert water for irrigation. Slight regulation for power by 

small reservoir above falls.

Cooperation. Gage-height record and one discharge measurement furnished by Washington 

Water Power Co.

Rating table, water year 195O-51, except periods of ice effect (gage height, 

in feet, and discharge, in cubic feet per second)

77

144

295

808

2,240

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

*85

109

89

94

121

149

166

163

158

173

163

161

151

142

142

140

131

134

156

163

163

163

158

142

154

158

179

195

213

251

300

4,871

157

9,660

Nov.

225

269

245

232

222

216

207

*213

195

182

184

184

112

132

190

*219

258

265

251

235

225

232

228

225

238

269

234

295

291

284

-

6,994

233

13,870

Dec.

276

232

b220

b!70

bl40

b!40

bl80

b230

248

245

248

265

276

276

273

*276

295

340

380

416

452

484

525

588

666

702

702

702

676

650

650

11,923

385

23,650

Jan.

640

614

b6oo

b570

b520

b470

b420

b420

b440

b440

b440

447

463

463

463

473

484

468

468

468

463

463

463

468

473

515

504

b250

*b240

b240

b240

14,090

455

27,950

Feb.

b260

b280

b310

b350

b410

b440

b450

468

525

640

808

972

1,020

1,050

1,080

1.160

1,140

1,050

970

888

867

808

782

755

755

728

702

676

_

-

-

20,344

727

40,350

Mar.

676

676

650

650

650

629

619

603

603

598

562

603

598

*598

629

755

808

861

888

888

383

970

1,020

1,020

1,050

1,110

1,160

1,160

1,160

1,190

1.250

25,522

823

50,620

Apr.

1.280

1,310

1,400

1,490

1,640

1,730

1,800

1,940

2,030

2,080

2,030

2,080

2,160

2,160

2.240

2,160

2,160

*2,080

2,080

1,940

1,870

*1,760

1,730

1,610

1,550

1,490

1,460

1,460

1,580

1,640

-

54,040

1,801

107 , 200

May

1.55_0

1,520

1,490

1,460

1,460

1,460

1,460

1,430

1,400

1,340

1,310

1,340

1,370

1,310

1,250

1,160

1,140

1,080

998

915

861

834

782

723

*702

650

640

624

614

598

512

34,048

1,098

67,530

June

546

520

499

478

484

499

515

515

499

478

463

437

426

411

395

370

350

331

313

300

288

291

273

304

295

291

304

269

255

251

11,650

388

23,110

Jul-r

235

242

242

235

228

228

228

222

216

210

204

198

192

187

179

176

*176

173

166

136

154

161

154

158

158

149

146

142

129

134

131

5,6£>9

If4

ll,2fO

Calendar year 1950 : Max 1,370 Mln 74 Mean 390 Ac-ft 282,100

Aug.

129

125

112

112

107

123

110

116

118

114

109

114

107

110

114

116

112

105

105

96

104

100

100

100

105

*105

105

113

119

144

151

3,505

113

6,950

Sept.

151

149

142

136

129

127

123

129

138

127

138

136

134

123

129

123

116

121

119

118

110

114

125

121

125

131

134

131

134

138

-

3,871

129

7,680

Water year 1950-51 : Max 2,240 Mln 85 Mean 538 Ac-ft 389,800

Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SPOKANE RIVER BASIN 

Coeur d'Alene River above Shoshone Creek, near Prlchard, Idaho

257

Location. Lat 47°42 1 , long. 115 0 59' , In NE£sw£ sec. 5, T. 50 N., R. 4 E. , on left bank 

at Shoshone Creek ranger station 6.2 mile downstream from Uranus Creek, 0.4 mile upstream from Shoshone Creek, and 3f miles north of Prlchard.

Drainage area. 335 >sq mi.

Records available. December 1950 to September 1951.

gage. Water-stage recorder. Altitude of gage is 2,485 ft (from river-profile map).

Extremes. Maximum discharge during period, 9,610 cfs Feb. 11 (gage height, 7.17 ft), from 

rating curve extended above 3,300 cfs by logarithmic plotting; minimum, 65 cfs probably 

Sept. 20 (gage height, 0.91 ft).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. No regulation or diversion above station.

Rating table, period Dec. 1, 1950, to Sept. 30, 1951, except periods 

of Ice effect (gage height. In feet, and discharge, In cubic 

feet per second)

0.9 

1.2 

1.5 

2.0 

2.5

62

164

286

540

895

3.0 

4.0 

5.0 

6.0 

6.8

1,380

2,600

4,280

6,450

8,530

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6 

7 

8

9

10

11 

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tbtaa

Mean

Cfsm

In.

Ac-ft

Oct. Nov. Dec.

1,000 

880

800

720

610

600 

620

540

520

500

520 

580

620 

640 

660

6SO

700

800

1,060

1,200

2,000

2,370

4,200

7.830

5,600

3,800

3,000

2,300

1,800

 1,510

1,340

50,000

1,613

4.81

5.55

99,170

Jan.

1.150 

1,080

1,030

895

794

716 

674 

b640

b620

598

575 

552

540 

518 

507

512

512

490

b475

b460

458

458

b410

406

490

810

844

635

b550

b460

b470

19,329

624

1.86

2.15

38,340

Feb.

b480 

b520

b560

b540

b480

b470 

474 

598

1,490

5,520

8.310 

6,650

3,640 

2,520 

1,990

1,640

1,380

1,220

1,060

967

870

778

723

695

688

623

575

629

-

-

46,090

1,646

4.91

5.12

91,420

Mar.

598 

524

512

524

.496

458 

474 

437

469

453

396 

417

396 

427

524

437

412

417

432

453

458

443

432

474

569

*629

681

818

878

844

15,873

512

1.53

1.76

31,480

Apr.

1,420

1,930

2,470

2,890

3,050 

3,190 

3,360

2,920

2,470

2,330 

2,380

2,800 

3.570 

3,240

2,780

2,670

2,860

*2,760

2,340

1,970

1,700

1,510

1,410

1,440

1,580

1,850

2,190

2,490

2,490

-

71,036

2,368

7.07

7.89

140,900

May

2,290 

1,930

1,670

1,640

2,320

3,030 

3.590 

3,110

2,600

2,570

2,740 

*2,740

2,450 

2,710 

2,760

2,540

2,490

2,370

2,050

1,760

1,600

1,530

1,530

1,460

1,260

1,100

1,000

940

861

786

71£

62,143

2,005

5.99

6.90

123,300

June

610

592

581

569

563 

*552 

524

490

469

469 

485

480 

453 

427

412

386

371

361

347

347

327

318

381

347

304

291

277

273

264

-

12,918

431

1.29

1.43

25,620

July

264 

256

243

264

269

260 

243 

231

227

218

206 

202

194 

187 

179

175

168

160

157

 153

153

150

146

146

139

135

132

132

128

125

121

5,763

186

0.555

0.64

11,430

Aug.

121 

121

118

118

114

111 

108 

108

118

114

111 

US

114 

114 

111

*104

104

100

95

95

95

90

90

90

95

95

95

95

100

110

120

3,292

106

0.316

0.37

6,530

Sept.

m105

105

100

100 

100 

95

90

95

100 

100

90 

90 

85

80

75

75

75

70

75

80

85

90

100

110

100

90

85

110

-

2,775

92.5

0.276

0.31

5,500

Calendar year : Max Min Mean Cfsm In. Ac-ft

Water year : Max Mln Mean Cfsm In. Ac-ft

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. No gage-height record Dec. 1-21, 25-29, Aug. 18 to Sept. 30; discharge estimated on basis of 

ecorded range in stage, weather records, and records for other Coeur d'Alene River stations.
258 SPOKANE RIVER BASIN

Coeur d'Alene River near Prlohard, Idaho

Location. Lat 47°38', long. 115°59', In lot 7. sec. 32,-T. 50 N., R. 4 E., on right bank 

0.2 mile downstream from Beaver Creek: and if miles southwest of Prichard.

Drainage area.--583 sq mi.

Records available.--August 1944 to September 1951.

Gage. Staff gage read once daily. Altitude of gage is 2,365 ft (from river-profile map).

Average discharge. 7 years, 1,458 cfs.

Extremes. Maximum discharge during year, 16,400 cfs Feb. 11 (gage height, 10.95 ft, from 

graph based on gage readings); minimum observed, 146 cfs Sept. 20 (ga-re height, 1.73 

ft).

1944-51: Maximum discharge determined, that of Feb. 11, 1951, but may have been 

higher Dec. 15, 1946; minimum observed, 90 cfs Sept. 13, 1944 (gage height, 1.00 ft).

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. No diversion or regulation above station.

Revisions.--W 1182: Drainage area.

Rating table, water year 1950-51, except periods of Ice effect (gage

height. In feet, and discharge. In cubic feet per second)

(Shifting-control method used Aug. 7 to Sept. 3O)

1.6 

2.0 

2.5 

3.0 

3.5 

4.0

137

273

482

765

1,160

1,590

5.0 

6.0 

7.O 

8.0 

9.0 

10.3

2,700

4,060

5,790

8,030

10,600

14,400

Discharge,! In cubic feet per second, water year October <.1950 to September 1951

Day

1 

2

3

4

5

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.

Ac-ft

Oct.

a220 

215

a210

a52U

a250

a320

aSOO

a270

296

312

328

289

266

258

258

258

277

336

464

751

960

723

555

460

428

570

641

730

1,33O

2,530

2.640

17,665

570

O.978

1.13

35,040

Nov.

2.020 

1,546

1,240

1,22O

1,220

1,220

1,150

1,O8O

936

856

795

723

683

671

624

 613

618

586

525

520

608

695

695

84O

1,260

1,640

1,77O

1,730

1,710

1,680

-

31,468

1,049

1.80

2.01

62,420

Dec.

1,590 

1.360

1,240

1.1OO

920

920

976

856

795

765

818

904

968

984

1,030

1,030

1,090

1,210

1,620

1,970

2,990

3, BOO

6,220

12,100

6,580

5,850

4,420

3,500

 2,870

2,600

2,350

77,426

2,498

4.28

4.94

153,600

Jan.

2,000 

1,7S6

1,830

1,590

1,450

1,310

1,180

1,190

1,180

1,100

1.03O

l.OOO

952

936

9O4

888

920

88O

818

758

751

780

723

 689 525"

1,490

1,690

1,300

bl.OSO

bSSO

b900

34,774

1,122

1.92

2.22

68,970

Feb.

b920 

b980

bl,050

1,000

912

872

55?

1,060

2,260

10,900

14,400

11,906

6,78O

4,3OO

3,260

2,710

2,4OO

2,110

1,870

 1,710

1,570

1,430

1,330

1,290

1,270

1,180

1,060

1,050

_

-

82,478

2,946

5.05

5.26

163, 6OO

Mar.

l.OOO 

944

896

888

896

880

848

a730

765

730

659

'BBT 653

689

751

896

765

7O2

689

744

758

795

772

772

864

904

1,020

1,220

1,370

1,450

1.46O

27,193

877

1.50

1.73

53,940

Apr.

1.630 

2,166

2,840

3,600

4,260

4,650

4,890

5.160

4,576

4,020

3,670

3,690

4,180

5,160

4,940

4,270

4,120

4,470

 4,390

3.73O

3,120

2,590

2,330

2, ISO

2,220

2,480

2,900

3,390

3,940

4,120

109,610

3,654

6.27

6.99

217,400

May

3,770 

3,170

2,710

2.640

3,590

4,730

5.730

4,920

4,21O

4,220

4,630

 4.580

4,090

4,630

4,540

4,2OO

4, ISO

4,220

3,780

3,260

2,960

2,88O

3,040

2,960

2,590

2,320

2,130

1,980

1,680

1,630

IjSlO

107,450

3,466

5.95

6.85

213,100

June

1.400 

1,366

1,270

1,210

1,18O

1,160

 1.19O

1,110

1,030

1,000

992

1,020

1,080

1,080

1.O2O

992

936

880

840

78O

751

723

659

723

683

641

618

565

53O

506

27,869

929

1.59

1.78

55,280

July

496 

482

450

496

506

468

442

424

420

411

394

373

360

352

348

336

320

312

3O8

 312

300

296

292

285

273

273

266

258

254

258

251

11,016

355

O.6O9

0.7O

21,850

Aug.

229 m

226

222

222

218

218

215

215

218

226

222

222

191

 191

184

184

178

178

178

171

165

TStf

171

171

171

168

178

204

218

6,202

200

0.343

O.4O

12,300

Sept.

206

201

198

191

191

188

181

178

171

175

188

181

171

168

156

152

149

149

149

146

149

159

171

164

201

218

?oT

188

171

212

5,348

178

0.305

0.34

10,610

Calendar year 195O: Max 14,OOO Mln 181 Mean 1,993 Cfsm 3.42 In. 46.4] Ac-ft 1,443,000

Water year 1950-51 : Max 14,400 Mln 146 Mean 1,475 Cfsm 2.53 In. 34. ZS Ac-ft 1,068,000

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for station at 

Enaville and nearby streams.

b Stage-discharge relation affected by Ice.
SPOKANE RIVER BASIN 259

Coeur d'Alene River at Enaville, Idaho

Location. Lat 47-34', long. 116 0 15', In NWi sec. 30, T. 49 N., R. 2 E. , on ri?ht bank 

800 ft upstream from highway bridge, a quarter of a mile northwest of Enavlile Post 

Office, 1.1 miles upstream from South Pork, and 3.5 miles downstream from North Fork.

Drainage area. 895 sq ml.

Records available. March 1911 to April 1913 (fragmentary), October 1939 to September 

T55T!Published as North Pork of Coeur d'Alene River at Enaville 1911-13.

Page. Water-stage recorder. Datum of gage Is 2,100.00 ft above mean sea level, referenced to benchmark near mouth of North Pork, elevation, 2,204.880 ft (0. S. Geol. 

Survey Bull. 567, p. 82). Mar. 3, 1911, to Apr. 12, 1913, staff gage at site a quarter 

of a mile downstream at different datum. Oct. 18 to Dec. 22, 1939, staff gage at 

present site and datum.

Average discharge. 12 years (1939-51), 1,853 cfs.

Extremes. Maximum discharge during year, 27,400 cfs Feb. 11 (gage height, 74.93 ft), 

from rating curve extended above 18,000 cfs by logarithmic plotting; minimnn, 243 cfs 

Sept. 20-22 (gage height, 60.54 ft).

1911-13, 1939-51: Maximum discharge, 28,100 cfs Dec. 15, 1946, from rating curve 

extended above 13,000 cfs by logarithmic plotting; minimum dally discharge, 145 cfs 

Dec. 24, 1944; maximum gage height, 74.93 ft Feb. 11, 1951; minimum gage height, 60.16 

ft Nov. 19, 1944.

Prom local Information concerning high-water marks, flood In December 1P33 reached 

a stage of 79.47 ft and that In April 1938 a stage of 78.16 ft.

Remarks. Records good except those for periods of Ice effect or no gage-helgtt record, 

which are fair. No appreciable diversion or regulation above station.

Discharge, In cubic feet per second, water year October 1950 to September 1?51

Day

1

2

3

4

5

6

7 

8 

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

23

29

30 

31

 total

Mean

Cfsm

In.

Ae-ft

Oct.

320

317

31±

320

366

462

450 

396 

432

453

467 

432

396

331

373

373

377

454

532

982

1,420

1,100

837

690

613

780

856 

924

1,710

3,490 

3,790

24,362

802

0.896

1.03

49,310

Nov.

2.390

2,230

1.84O

1,710

1,710

1,730

1,650 

1,490 

1,320

1.13O

1,120 

1,050

960

910

856

850

897

350

762

737

 843

1,050

1,120

1,230

1,890

2,290

2,470 

2,630

2,650

2,510

45,475

1,516

1.69

1.89

90,200

Dec.

2,430

2,010

1,810

1,650

1,440

1,320

1,360 

1,290 

1,180

1.150

1,160 

1,330

1,500

1,590

1,630

1,690

1,990

2,520

2,820

3,160

4,340

5,590

7,630

15.900

al3,000

a9,000

a7,200 

a 5, 800

 4,400

3,940 

3,6OO

115,410

3,723

4.16

4.80

228,900

Jan.

3,140

2,950

3,010

2,590

2,270

2,010

1,760 

1,710 

1,720

1,610

1,530 

1,450

1,390

1,370

1,340

1,340

1,330

1,300

1,230

1,160

1,180

1,190

1,070

1.050

17255

2.79O

3.300 

2/370

bl,800

bl,350 

bl , 400

55,010

1,775

1.98

2.29

109,100

Feb.

bl.500

bl,550

bl,600

bl,6OO

bl.500

bl.400

bl,500 

bl,700 

b5,500

b 18,000

22.500 

22,400

11.50O

 7,680

5,930

4,920

3,980

3,700

3,220

2,870

2,590

2,300

2,10O

1,990

1,960

1,790

1,530 

1,540

_

-

140,400

5,014

5.60

5.83

273,500

Mar.

1,540

1,410

1,340

1,340

1,320

bl,300

bl,200 

bl,100 

bl,150

bl.lOO

949 

928

949

949

1,050

1,500

1,290

1,150

1,140

1,210

1,300

1,370

1,310

1,280

1,330

1,680

1,990 

 2,070

2,340

2.590 

2,550

43,775

1,412

1.58

1.82

86,330

Apr.

2.77O

3,630

4,930

6,310

7,440

7,960

8,19O 

8.500 

7,600

6,360

a5,800 

a5,700

a6,400

aS.OOO

a 7 , 900

a6,800

a6,400

a6,700

6,550

 5,720

4,880

4,240

3,310

3,500

3,420

3,630

4,140 

4,330

5,640

5,810

173,410

5,780

6.46

7.21

344,000

May

5,450

4,640

4,000

3,810

4,900

6,310

7.640 

6,990 

5,830

5,530

 6,010 

6,240

5,700

6,380

6,500

6,040

5,860

5,800

5,160

4,500

4,090

3,920

4,040

4,000

3,600

3,120

2,84O 

2,690

2,490

2,240 

2.020

148,340

4,785

5.35

6.16

294,200

June

1.870

1,740

1,680

1,650

1,650

1,650

1,680 

 1,610 

1,480

1,390

1,400 

1,490

1.51O

1,430

1,380

1,340

1,270

1,180

1,120

1,070

1,030

932

924

1,060

1,030

897

843 

798

762

731

33,647

1,288

1.44

1.61

76,660

July

719

702

673

755

Hi

719

673 

629 

602

582

561 

542

527

512

499

485

476

462

454

 445

437

423

420

412

400

392

331 

373

366

358 

348

16,106

520

0.581

0.67

31,950

Aug.

344

341

334

331

324

317

311 

308 

305

311

302 

305

298

295

239

 236

230

275

272

269

266

264

264

261

269

266

261 

266

302

327 

324

9,167

296

0.331

0.38

18,180

Sept.

303

302

295

233

275

269

266 

261 

264

264

272 

272

266

258

253

250

250

250

248

£43

243

243

248

246

269

311

320 

305

298

aaa

8,137

273

0.305

0.34

16,240

Calendar year 1950: Max 22,100 Mln 298 Mean 3,064 Cfsm 3.42 In. 46.47 Ac-^t 2,218,000

Water year 195O-51: Max 22,500 Mln 243 Mean 2,243 Cfsm 2.51 In. 34. O3 Ac-ft 1,624,000

Peak discharge (base. 6.000 cfs).-

27.400 cfs (74.93 ft); Apr. 8 (5 p.m

-Dec. 24 (7 p.m.) 13.400 cfs (71.90 ft); Feb. 11 (12 p.m.) 

.) 8.3SO efs (67.77 ft); Apr. 14 (time unknown) 8,430 cfs (67.82

ft); May 7 (3 to 6 p.m.)~7,90O cfs (67.52 ft).

 Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of weather records and records for stations 

near Cataldo and near Prlchard.

b Stage-discharge relation affected by Ice.
260 SPOKANE RIVER BASIN

Coeur d'Alene River near Cataldo, Idaho

Location. Lat 47°34', long. 116°18', In sec. 26, T. 49 N..R. IE., on left bank l£ miles 

upstream from Cataldo and 3 miles downstream from South Fork.

Drainage area. 1,220 sq mi, approximately.

Records available.--April 1911 to December 1912, July 1920 to September 1951.

Average discharge. 32 years, 2,441 cfs.

Gage . Water-stage recorder. Datum of gage is 2,100 ft above mean sea level, referenced 

7o benchmark "2143 S" (U. S. Geol. Survey Bull. 567, p. 82). Datum of 1929, supplementary adjustment of 1947 is 2.84 ft higher. Apr. 25, 1911, to Dec. 31, 1912, staff 

gage 300 ft downstream at different datum. July 29, 1950, to Oct. 10, 1925, staff 

gage at present site and datum.

Extremes. Maximum discharge during year, 34,800 cfs Feb. 11 (gage height, 51.45 ft); minimum, 312 cfs Sept. 22 (gage height, 38.29 ft).

1911-12, 1920-51: Maximum discharge, 55,300 cfs Dec. 22 or 23, 193? (gage height, 

56.9 ft, from floodmark), from rating curve extended above 24,000 cfs by logarithmic 

plotting; minimum, 122 cfs Dec. 4, 1929; minimum gage height, 37.03 ft Sept. 6, 1931.

Remarks. Records good except those for period of ice effect, which are fair. No appreciable diversion or regulation above station.

Cooperation. Water-stage recorder graph and four discharge measurements furnished by 

Washington Water Power Co.

Rating table, water year 195O-51, except period of Ice effect (gage

height, In feet, and discharge, In cubic feet per second; 

(Shifting-control method used Nov. 2 to Dec. 23, Feb. 12 to Apr. 15J

38.3

38.5

39.0

10.0

298

390

700

1,620

41.0

42.0

43.0

44.0

2,750

4,170

6,010

8,270

46.0

48.0

50.1

13,800

20,500

29,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

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 am

In.

Ac-ft

Oct.

446 

440

435 130"

530

672

637

560

609

658

658

609 

560

536

536

518

536

530

804

*1,180

1,740

1,450

1,170

985 

900

1,130

1,240

1,370

2,380

4,000

4,460

32,719

1,055

0.865

1.00

64,900

Nov.

3,580 

2,936

2,530

2,380

2,450

2,490

2,340

2,140

1,900

1,700

1,630

1,540 

1,400

1,340

1,240

1,250

1,280

1,250

1,090

1.080

1,300

*1,600

1,670

1,830 

2,650

3,100

3,210

3,290

3,270

3,140

-

62,600

2,087

1.71

1.91

124,200

Dec.

3,020 

2,710

2,560

2,380

2,080

1,950

2,070

1,960

1,810

1.750

1,860

2,130 

2,370

2,470

2,470

2,550

2,930

3,530

3,860

4,250

5,330

6,670

9,090

17,000 

15,300

10,900

8,490

6,690

*5,450

4,900

4,470

145,000

4,677

3.83

4.42

287,600

Jan.

3,980 

3,860

3,950

3,490

3,130

2,830

2,580

2,510

2,510

2,350

2,270

2,190 

2,100

2,100

2,080

2,120

2,190

2,060

1,940

1,830

1,870

1,880

1,730

1,700 

2,666

4,350

4,560

3,460

b2,500

bl,900

bl,950

80,030

2,582

2.12

2.44

158,700

Feb.

b2,050 

b2,150

b2,200

b2,200

b2,100

bgjOOO

b2,100

b2,500

7,180

24,800

29,000

27,800 

15,200

10,200

*7,620

6,150

5,190

4,670

4,170

3,800

3,500

3,250

3,080

2,940 

2,850

2,700

2,470

2,380

_

_

-

186,250

6,652

5.45

5.68

369,400

Mar.

2,390 

2,260

2,200

2,180

2,160

2,050

1,940

1,800

1,900

1,800

1,700

1.670 

1,710

1,730

1,970

2,630

2,280

2,100

2,080

2,190

2,330

2,350

2,250

2,220 

2,350

2,740

3,000

3,080

3,360

5.550

3,520

71,490

2,306

1.89

2.18

141,800

Apr.

3.710 

4, 4*96

5,990

7,810

9,300

10,100

10,300

10.400

9,436

7,960

7,220

7,090 

8,030

10,100

9,870

8,490

8,010

8,370

8,250

*7,220

6,170

5,390

4,920

4,670 

4,630

4,870

5,430

6,230

7,180

7,290

-

218,920

7,297

5.98

6.67

434,200

May

6,800 

5,850

5,160

4,990

6,170

8,130

10,200

9,326

7,840

7,690

*8,410

8,650 

7,810

8,490

3,510

7,980

7,910

7,860

7,050

6,210

5,750

5,670

5,890

5,790 

5,350

4,780

4,440

4,250

3,920

3,530

J^250_

203,650

6,569

5.38

6.21

403,900

June

1.040 

2,850

2,760

2,690

2,700

2,700

2,700

*2,560

2,400

2,290

2,340

2,490 

2,510

2,440

2,410

2,380

2,250

2,120

2,030

1,910

1,850

1,760

1,680

1,860 

1,790

1,620

1,540

1,470

1,400

1.340

65,880

2,196

1.80

2.01

130,700

July

1,290 

1,270

1,210

1.380 lysis

1,280

1,180

1,100

1,080

1,000

985

940 

908

892

852

828

804

772

 748

732

708

686

672

658 

623

616

602

602

581

554

-§4§

27,481

886

0.726

0 84

54,510

Aug.

BTB" 536 

524

518

500

494

488

482

476

476

476

476 

470

464

*446

446

440

430

420

410

405

400

400

390 

455

405

395

415

500

524

506

14,248

460

0.377

0.43

28,260

Sept.

HI

440

420

405

390

385

381

381

381

405

395 

*381

366

357

352

348

343

330

325

320

4il 725

330 

390

452

415

385

371

430

-

11,465

382

0.313

0.35

22,740

Calendar year 1950: Max 25,600 Bin 430 Mean 4,097 Cfsm 3.36 In. 45.60 Ac-ft 2,966,000

Water year 1950-51: Max 29,000 Mln 316 Mean 3,068 Cfsm 2.51 In. 34.14 Ac-ft 2,221,000

Peak discharge (base. 11.000 efs). Dee. 24 (s p.m.) 19,400 cfs (47.76 ft); Feb. 11 (12 p.m.) 

34,800 cfs (51.45 ft;. 

* Dlschage measurement made on this day. 

b Stage-discharge relation affected by Ice.
SPOKANE RIVER BASIN 261

St. Joe River at Calder, Idaho

Location. La t 47°16' , long. 116°11', In sec. 3, T. 45 N., R. 2 E., on right bank 150 ft 

southwest of Chicago, Milwaukee, St. Paul & Pacific Railway station at Calder.

DraInage area.--1.030 sq ml, approximately.

Records available. April 1911 to September 1912 (published as "near Calder"), July 1920 

to September 1951.

;e. Water-stage recorder. Datum of gage is 2,096.76 ft above mean sea level, datum of

929, supplementary adjustment of 1947, or 2,100 ft above mean sea level, datum of 

Geological Survey as given in Bulletin 567: Apr. 14, 1911, to Sept. 30, 1912, staff 

gage at site Z\ miles downstream at different datum. July 13 to Dec. 21, 1920, staff 

gage at present site and datum.

Average discharge. 31 years (1920-511,2,281 cfs.

Extremes. Maximum discharge during year, 17,200 cfs Feb. 11 (gage height, 88.07 ft); 

maximum gage height, 88.16 ft Feb. 10 (ice Jam); minimum discharge, 371 cfa Sept. 17 

(gage height, 79.49 ft).

1911-12, 1920-51: Maximum discharge, 53,000 cfs Dec. 23, 1933, computed on baais 

of slope between gages downstream; maximum gage height, 93.1 ft Apr. 18, 1938, from 

floodmark; minimum discharge, 96 cfs Dec. 5, 1928 (gage height, 78.43 ft).

Remarks. Records good except those for period of ice effect or no gage-height record, 

which are fair. No diversion above gage.

Cooperation. Water-stage recorder graph and two discharge measurements furnished by 

Washington Water Power Co.

Revisions. W 1182: Drainage area.

Rating table, water year 1950-51, except period of lee effect (gage 

height, In feet, and discharge, in cubic feet per second)

79.5

80.0

80.5

81.0

82.0

356

610

950

1,360

2,360

83.0

84.0

86.0

88.0

3,640

5,330

9,750

16,900

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4 

5

6

7 

8

9

10

11 

12

13

14

15

16

17

18

19

£0

£1

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

464 

454

TSl

479 

604

868

722 

604

690

676

777 

646

576

537

548

548

526

690

875

742

812

683

652

640

604

920

882

1,150

2,640

5.260 

2,840

27,563

889

0.863

1.00

54,670

Nov.

2,260 

2,220

1,870

1,840 

2,080

2,180

2,040 

1,890

1,620

1,520

1,540 

1,430

1,320

1,270

»1,210

1,220

1,250

1,210

al.100

al.OOO

1,270

1,290

1,330

1,470

2.780

2,780

2,570

2,520

2,420

2,330

52,830

1,761

1.71

1.91

104,800

Dec.

2,270 

2,020

1,920

1,870 

1,600

1,690

1,860 

1,700

1.590 1'iio

1,700 

1,870

1,900

1,870

1,880

1,900

2,080

2,240

2,330

2,640

3,000

3,260

5,620

7.440

6,666

5,310

4,570

3,920

3,440

3,280 

3,020

87,490

2,822

2.74

3.16

173,500

Jan.

2.750 

2,666

2,600

2,400 

2,220

1,970

1,840 

1,960

1^940

1,820

1,770 

1,680

1,650

1,640

1,620

1,610

1,590

1,510

1,430

1,440

1,410

1,400

1,320

1,340

 1,670

2,330

2,160

al,600

To 1.000

a'1,66'6 

bl.100

54,430

1,756

1.70

1.97

108,000

Feb.

al.200 

bl,256

bl,350

bl,300 

bl,300

bl,250

bl,300 

bl.800

bS.OOO

013,000

14.800 

11,800

7,420

5,560

4,640

3,990

3,540

3,260

2,950

2,750

2,590

2,400

2,320

2,240

2,210

2,030

1,920

1,960

-

-

107,130

3,826

3.71

3.87

212,500

Mar.

1,880 

1,820

1,770

1,740 

1,690

1,600

1,560 

1,500

1,570

1,400

1.360 

1,380

1,400

1,410

1,580

1,930

1,590

1,500

1,550

1,680

1,820

1,800

1,660

1,610

1,860

2,180

2,180

2,200

2,510

»2.550 

2,480

54,760

1,766

1.71

1.98

108,600

Apr.

2.770 

3,686

4,620

5,800 

6,690

7,310

7,700 

7,790

6,880

6,200

6,060 

6,380

7,550

8.980

8,216

7,660

7,750

»8,160

8,000

6,920

5,940

5,350

4,960

4,940

5,090

5,500

6,080

6,750

7,680

7,280

194,740

6,491

6.30

7.03

386,300

May

6,380 

5,520

4,960

5,000 

5,880

7,880

10.400 

9,330

8,510

*9,180

10,200 

10,300

9,100

8,490

7,700

7,570

8,000

8,270

7,880

7,590

7,420

7,750

8,760

8,780

8,200

7,610

7,220

6,940

6,120

5,480 

4.910

237,330

7,656

7.43

8.57

470,700

June

4.520 

4,260

4,160

4,020 

4,070

4,020

4,020 

3,820

»3,660

3,700

3,900 

4,230

4,310

4,310

4,500

4,520

4,150

3,900

3,660

3,420

3,250

3,050

2,900

3,010

2,840

2,650

2,530

2,460

2,260

2.200

108,300

3,610

3-50

3.91

214,800

July

2,120 

2,060

1,990

82.200 S,ie6

2,120

al,940 

1,750

1,670

1,610

1,540 

1,460

1,420

1,350

al,310

1,270

1,220

1,180

 1,130

1,090

1,070

1,040

998

966

928

898

875

868

a860

812 

777

42,682

1,377

1.34

1.54

84,660

Aug.

749 

aTSB"

a720

709 

8684

658

640 

646

628

628

622 

616

587

582

»564

559

537

521

510

499

494

489

504

489

504

484

469

155

640

646 

610

18,212

587

0.570

0.66

36,120

Sept.

521 

489

474

459 

444

430

421 

444

459

430

459 

440

411

402

393

384

380 3"§9"

393

384

»380

389

398

393

504

777

510

426

407

459

13,249

442

0.429

0.48

26,280

Calendar year 1950: Max 17,600 Mln 444 Mean 3,603 Cfsm 3.50 In. 47.49 Ac-ft 2,608,000

Water year 1950-51: Max 14,800 Mln 380 Mean 2,736 Cfsm 2.66 In. 36.08 Ac-ft 1,981,000

Peak discharge (base. 8.500 cfs). Peb. 11 (5 p.m.) 17,200 eta (88.07 ft)j Apr. 14 (7 a.m.) 9,260 

cfa (85.81 ft;7 May 12 (Z to 4 a.m.) 11,000 cfa (86.42 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and record^ for nearby 

streams.

b Stage-discharge relation affected by Ice.
262 SPOKANE RIVER BASIN

St. Maries River at Lotus, Idaho

Location.--Lat 47°14'40", long 116 8 37'30", in sec. 17, T. 45 N., R. 2 W.. on left bank 

1 mile northwest of Lotus, 1 mile downstream from Carlton Creek, and 5? miles southwest of St. Maries.

Drainage area.--437 sq mi.

Records available.--July 1911 to October 1912, July 1920 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,140.19 ft above mean sea level, referenced 

To benchmark WU.S.O.S. 2155 1911 35" (U.S. Oeol. Survey Bull. 567, p. 45). Datum of 

1929, supplemental adjustment of 1947, is 3.17 ft higher. Prior to Oct. 1, 1945, 

staff gages at sites 0.8 to 1.3 miles upstream at different datums. Dot. 1, 1945, to 

Feb. 21, 1949, staff gage at present site and datum.

Average discharge.--31 years (1920-51), 504 cfs.

Extremes.--Maximum discharge during year, about 10,300 cfs Feb. 11, estimated on basis 

of records for nearby streams; maximum gage height, 13.4 ft probably Feb. 9, from 

floodmark (ice Jam); minimum discharge, 47 cfs Sept. 21, 22 (gage height, 1.26 ft).

1911-12, 1920-51: Maximum discharge observed, 23,800 cfs Dec. 22, 23, 1933, from 

rating curve extended above 4,000 cfs by logarithmic plotting; maximum gage height, 

that of Feb. 9,.1951; minimum discharge, 16 cfs (estimated) Nov. 21, 1929.

Remarks.--Records good except those for period of ice effect or no gage-hiight record, 

which are poor. No diversion or appreciable regulation above station.

Cooperation.--Mater-stage recorder graph and two discharge measurements furnished by 

Washington Water Power Co.

Revisions. W 1062: Drainage area.

Rating tables, water year 1950-51, except period of lee effect (gage 1 eight, 

In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Mar. 15 to Apr. 7)

Oct. 1 to Feb. 11 Feb. 12 to Sept. 30

53

102

201

335

625

3.0 

4.0 

5.0 

6.0 

6.9

1,030

2,130

3,650

6,050

8,730

1.2 40 2.0 316 

1.4 80 2.5 624 

1.7 176 3.0 1,030

Note. Same as precedlrt; table 

above 3.0 ft.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

74

71

7l

79

108

183 

134

108

111

128

114

102

97

92

92

94

94

108

164

141

138

125

108

111

1O8

175 

201

222

606

666 

436

5,061

163

0.373

0.43

10,040

Nov.

316

639

414

306

260

230 

213

217

197

164

179

168

161

157

 154

157

186

201

168

186

287

387

387

471

1.060

724 

555

488

414

387

9,833

328

0.751

0.84

19,500

Dec.

483

398

361

361

264

256 

653

653

500

459

471

549

567

518

512

567

666

716

680

859

834

826

1,780

1.850

1,336

1,030 

859

769

709

769 

859

22,108

713

1.63

1.88

43,850

Jan.

709

680

754

666

567

448 

335

454

442

361

392

356

351

382

436

512

500

488

431

398

382

398

345

371

 543

1.640 

1,426

587

450

400 

350

16,498

532

1.22

1.40

32,720

Feb.

340

370

360

330

320

300 

290

60O

1,700

5,500

8.SOO

7,666

3,000

2,000

1,600

1,20O

900

850

750

650

580

520

460

430

510

400 

31O

280

-

:

40,050

1,430

3.27

3.41

79,440

Calendar year 1950: Max 7,020 Mln 62

Mar.

32O

310

300

290

280

270 

250

230

250

220

190

170

155

260

436

1,070

900

600

700

 793

886

810

673

702

940

1,160 

1,190

1,140

1,200

1.270 

1,130

19,140

617

1.41

1.63

37,960

Apr.

1,310

1,640

1,880

2,270

2,490

2.590 

2,520

2,470

2,140

1,820

1,560

1,450

1,530

1,760

1,670

1,520

1,420

 1,410

1,350

1,160

1,000

886

810

746

724

716 

732

842

1,190

1,310

44,916

1,497

3.43

3.82

89,090

May

1,060

904

810

777

859

842 

877

895

842

 785

762

826

842

1.160

1,110

976

904

859

785

732

673

631

604

590

564

518 

486

455

430

400 

377

23,335

753

1.72

1.99

46,280

June

354

338

316

316

349

400 

455

 590

415

354

327

332

332

301

280

260

246

237

232

223

214

210

205

210

214

193 

184

172

165

161

8,588

286

0.654

0.73

17,030

July

154

154

146

165

227

176 

161

146

139

133

126

120

117

113

107

104

102

99

*94

91

91

78

88

91

85

83 

80

76

76

73 

.71

3,566

115

0.263

0.30

7,070

Aug.

69

67

67

67

65

67 

62

62

62

60

60

60

60

58

 58

60

58

56

54

54

53

53

53

54

56

56 

56

58

69

H

1,904

61.4

0.141

0.16

Sept.

78

69

65

60

56

54 

54

54

65

62

60

60

58

56

53

53

53

53

53

51

 47

4T

49

49

58

$

65

62

65

1,769

59.0

0.135

0.15

3,780| 3,510

Mean 864 Cfsm 1.98 In. 26.84 Ac-ft 625,500

Water year 1950-51: Max 8,500 Mln 47 Mean 539 Cfsm 1.23 In. 16.74 Ac-ft 390,300

Peak discharge (base. 2.200 cfs). Dec. 23 (9 p.m.) 2.200 cfs (3.99 ft); Feb. 11 (time unknown) 

about 10,300 cfs (gage height unknown); Apr. 6 (11 a.m.) 2,650 cfs (4.49 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice about Jan. 28 to Feb. 11. No grge-helght record 

JanTT9 to Mar. 14, Mar. 17-19; discharge computed on basis of weather records anf records for Potlatch Creek, Coeur d'Alene River stations and Coeur d'Alene Lake.
SPOKANE RIVER BASIN 263

Coeur d'Alene Lake at Coeur d'Alene, Idaho

Location. Lat 47°40" , long. 116°46', In sec. 24, T. 50 N., R. 4 W., 500 ft southwest of 

south end of Eleventh Street, Coeur d'Alene.

Drainage area. 3.700 sq ml, approximately.

Records available. April 1903 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 2.100.00 ft above mean sea level, referred

~^to originally accepted elevation (2,157.40 ft) of Geological Survey benchmark In southeast corner of Merrlam Building (see Water-Supply Paper 882). Datum of 1929, supplementary adjustment of 1947, Is 3.00 ft higher. Apr. 26, 1903, to Feb. 14, 1905, staff 

gage at mouth of St. Joe River at datum about 18.7 ft higher. Feb. 15, 1905, to Mar. 

23, 1921, staff gage and Mar. 24, 1921, to Dec. 22, 1930, water-stage recorder at Johnson Wharf 800 ft southeast of railroad station and 1 mile northwest of present site at 

datum 19.75 ft higher. Dec. 23, 1930, to Feb. 9, 1931, staff gage at present site and 

datum Extremes. Maximum contents during year, 472,000 acre-ft Feb. 14 (elevation, 2,132.48 ft),

 minimum, 115,000 acre-ft Mar. 15 (elevation, 2,124.26 ft).

1903-51: Maximum contents, 834,900 acre-ft Dec. 25, 1933 (elevation, 2,139.05 ft); 

minimum, 2,700 acre-ft below zero of contents table Oct. 10-12, 1904, Sept. 24, 25, 

1905, Oct. 14 to Nov. 3, 1906 (elevation, 2,119.9 ft).

Maximum contents known prior to 1903, 753,300 acre-ft May 31, 1894 (elevation, 

2,137.6 ft, from high-water marks). 

Remarks. The Washington Water Power Co. stores water in Coeur d'Alene Lake by regulation

 aTTost Falls Dam for power generation at Post Falls and other plants on Spokane River. 

Storage Is within natural range of lake stage. Contents given herein are those above 

elevation 2,120.0 ft. Capacity of lake between elevations 2,120 and 2,1*0 ft, 889,000 

acre-ft. Cooperation. Water-stage recorder graph furnished by Washington Water Power Co.

RevlslorisT^-W 1182: Drainage area.

Elevation, In feet, water year October 195O to September 1951

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

Oct.

28.00 

28.00

27.99

27.99 

28.01

27.99

27.95

27.94

27.95 

27.96

27.94

27.95

27.94

27.94 

27.95

27.93

27.94 

27.98

27.98

28 .OO

28.00

28. OO

27.98 

27.91

27.90

27.91

27.99

27.97 

28.01

28.19 

28 .01

NOV.

27.81 

27.82

27.82

27.78 

27.81

27.88

27.94

27.98

27.99 

27.99

27.97

2B.QO

27. 99

27.97 

27.94

27.93

27.92 

27.90

27.88

27.90

27.91

27.90

27.95 

27.98

27.97

27.90

27.82

27.88 

27.91

27.97

Dec.

28.01 

27.88

27.78

27.76 

27.83

27.91

28.00

28 .OO

27.93 

27.89

27.84

27.90

27.86

27.81 

27.85

27.81

27.78 

27.71

27.69

27.64

27.63

27763

27.64 

27.90

28.31

28.62

28.84

28.92 

28.86

28.73 

28.54

Jan.

28.33 

28.14

27.95

27.73 

27.50

27.26

27.15

27.23

27.34 

27.43

27.53

27.50

27.41

27.28 

27.18

27.11

27.19 

27.29

27.36

27.42

27.48

27.44

27.30

27.05

26.87

26.96

27.16

27.15 

26.94

26.74 

26.80

Feb.

26.88 

26.99

26.90

26.80 

26.64

26.42

26.22

26.12

26.30 

27.20

28.66

30.42

31.82

32.40 

32.46

32.11

31.70 

31.23

30.74

30.25

29.79

29.35

28.92 

28.52

28.15

27.79

27.43

27.10

"

Mar.

26 .77 

26 .48

26.23

25.99 

25.72

25.55

25.40

25.17

25.00 

24.83

24.69

24.53

24.42

24.33 

24.51

24.40

24.47 

24.47

24.44

24.44

24.50

24.53

24.53 

24.52

24.52

24.59

24.66

24.76 

24.89

25.02 

25.15

Apr.

25.26 

25.43

25.71

26.12 

26.62

27.10

27.59

28.01

28.40 

28.68

28.82

28.90

28.93

29.05 

29.23

29.40

29.52 

29.57

29.59

29.62

29.57

29.42

29.23 

29.00

28.78

28. 6O

28.43

28.34 

28.38

28.49

May

28.55 

28.54

28.45

28.33 

28.22

28.20

28.32

28.55

28.77 

28.90

29.02

29.18

29.34

29.48 

29.60

29.65

29.69 

29.69

29.68

29.65

29.57

29.44

29.35 

29.25

29.20

29.11

28.99

28.81 

28.59

28.38 

28.14

June

27.91 

27.62

27.34

27.11 

26.91

26.73

26.60

26.47

26.40 

26.41

26.57

26.83

27.08

27.30 

27.47

27.63

27.76 

27.79

27.78

27.82

27.89

27.93

27.95 

27.94

27.91

27.92

27.91

27.88 

27.68

27.89

July Aug ,

27.91 27.97 

27.94 27.96

27.92 27.96

27.97 27.96 

27.95 27.98

27.91 27.96

27.90 27.95

27.90 27.95

27.88 

27.87

27.88

27.90

27.92

27.93 

27.92

27.91

27.92 

27.92

27.90

27.87

27.86

27. §9

27.90 

27.89

27.89

27.90

27.91

27.93 

27.96

27.97 

27.97

27.96 

27.96

27.97

27.98

27.95

27.95 

27.95

27.97

27.97 

27.95

27.94

27.93

27.92

27.96

27.95 

27.91

27.91

27.92

27.91

27.89 

27 .92

27.97 

27.94

Sept.

27.93 

27.93

27.93

27.96 

27.97

27.99

27.99

27.99

27.98 

27.98

27.97

27.95

27.94

27.93 

27 .92

27.93

27.94 

27.97

27.97

27.95

27.93

27.95

27.94 

27.97

27.98

27.96

27.94

27.97 

27.97

27.99

Note. Add 2,10O ft to obtain elevation above mean aea level.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31...................

Calendar" year 1950 ......

Sept. 30...................

Water year 195O-51

Elevation 

(feet)t

2,127.99

2,127.86

2,128.00

2,128.46

-

2,126.84

2,125.21

2,128.55

2,128.02

2,127.89

2,127.97

2,127.95

2,127.97

-

Contents 

(acre-feet)

238, OOO

231, 8OO

238,500

260,900

-

189, 400

192, 300

141.0OO

265,400

239, 500

233,200

237,100

236, 100

237,100

-

Change in contents 

during month 

(acre-feet)

_

-6,200

+6.7OO

+22.4OO

+55,600

-71.5OO

+2,900

-51,300

+124,400

-25,900

-6,300

+3,900

-1,000

+1.OOO

-900

t Elevation at 12 p.m.

288999 O - 54 - 18
264 SPOKANE RIVER BASIN

Hayden Creek below North Fork, near Hayden Lake, Idaho

Location. Lat 47°49<20", long. 116°39'20", in NW^SW^ sec. 25, T. 52 N., R. 3 W., on right 

bank 0.35 mile downstream from North Pork, 2£ miles upstream from mouth, and 7 miles 

northeast of Hayden Lake post office. Prior to June 27, 1951, at site £00 ft downstream.

Drainage area. 22.0 sq mi.

Records available. April 1948 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,370 ft (from topographic map). Prior 

to Nov. 2, 1948, staff gage and Nov. 2, 1948, to June 26, 1951, water-stage recorder at 

site 200 ft downstream and at 1.39 ft lower datum.

Extremes. Maximum daily discharge during year, 600 cfs Feb. 11; maximum gage height, 4.93 

ft Feb. 11 (ice Jam); minimum discharge, 3.6 cfs Sept. 20.

1948-51: Maximum discharge, 774 cfs Mar. 18, 1950 {gage height, 4.73 ft), from 

rating curve extended above 300 cfs on basis of slope-area determination at gage 

height, 4.38 ft; maximum gage height, that of Feb. 11, 1951; minimum re-sorded, 3.6 cfs 

about Nov. 8, 1949, Sept. 20, 1951.

Remarks. Records good except those for periods of no gage-height record, those for July 

11 to Aug. 16, which are fair, and those for periods of ice effect, which are poor. No 

diversion or regulation above station.

Rating tables, water year 195O-51, except periods of ice effect Igage height,

in feet, and discharge, in cubic feet per second)

(Shifting-control method used Dec. 24)

1.1 

1.4

Oct. 1 to Dec. 24

4.8 1.7 60

10 2.0 110

18 2.5 237

33 3.0 369

Dec. 25 to June 26 June 27 to Sept. 30

5.0 

8.3

66

2.2 

2.5 

3.0 

4.1

112

177

305

600

1.2

1.3

1.5

1.6

2.5 

4.0

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

5.6

5.6

5.6

7.0

9.8

8.8

6.8

7.0

9.8

8.2

7.6

6.8

7.6

7.0

7.9

7.6

8.5

12

12

25

14

10

9.2

7.9

8.2

11

9.8

12

24

45

29

356.3

11.5

0.523

0.60

707

Nov.

20

16

15

14

14

13

12

11

10

9.8

10

9.8

*9.2

9.5

i±8

9.8

10

9.8

8.8

8.8

10

12

11

16

20

25

30

312"8~

26

-

438.3

14.6

0.664

0.74

869

Dec.

23

19

18

17

14

15

15

14

13

T?

18

28

36

33

31

32

49

70

69

76

142

156

224

366

177

97

67

50

36

36

34

1,989

64.2

2.92

3.36

3,950

Jan.

32

34

33

25

20

16

14

14

13

11

11

9.2

8.3

7.6

8.7

8.7

9.2

8.0

7.3

6.0

7.0

6.3

S.3

6.6

21

*I55

107

b60

b30

640

b50

784.2

25.3

1.15

1.33

1,560

Feb.

b40

b30

23

20

18

14

15

17

62

b370

b600

480

253

*155

112

86

73

62

57

53

50

46

44

43

41

37

34

33

_

.

-

2,868

102

4.64

4.85

5,690

Mar.

32

30

29

29

27

a26

a25

a24

a24

a23

a22

aZZ

23

a25

aZ8

30

a27

a25

26

a30

a32

a30

29

29

33

*48

52

54

58

61

63

1,016

32.8

1.49

1.72

2,020

Apr.

66

84

142

217

240

222

192

172

138

105

90

83

86

102

92

80 *74

7b

73

62

54

48

43

40

37

36

38

43

52

54

2,841

94.7

4.30

4.80

5,640

May

52

45

41

41

46

46

49

45

40

39

41

42

48

*72

Zl

69

62

56

49

44

39

34

31

29

26

25

23

23

21

20

20

1,295

41.8

1.90

2.19

2,570

June

12

18

18

18

17

17

19

16

15

15

*15

16

16

15

14

14

14

14

14

14

14

13

13

a 13

a!2

a 12

*12

11

11

11

440

14.7

0.668

0.74

873

July

10

10

10

14

11

10

9.4

9.0

*8.6

8.3

8,0

8,0

7.6

7.2

6.9

6.9

6.9

6.3

6.0

6.0

6.0

5.7

5.7

5.7

5.4

5.4

5.2

4.9

4.9

4.9

4.9

228.8

7.38

0.335

0.39

454

Aug.

.9

.9

.9

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

* .3

.6

.3

.3

.3

.3

.3

.6

.6

.3

.3

.4

.3

.0

.7

146.1

4.71

0.214

0.25

290

Sept.

.2

.9

.6

.6

.3

.3

.3

.3

.3

.6

.9

.3

.3

.3

.0

%7

7T

.7

.7

.7

.7

.8

.8

.8

.2

>4

75

.0

* .0

.0

127.7

4.26

0.194

0.22

253

Calendar year 1950: Max 700 Min 4.0 Mean 56.9 Cfsm 2.59 In. 35.14 Ac-ft 41,220

Water year 1950-51: Max 600 Min 3.7 Mean 34.3 Cfsm 1.56 In. 21.19 Ac-ft 24,880

Peak discharge (base. 200 cfs). Dec. 24 (6 a.m.) 420 efs 

 (discharge unknown); Apr. 5 (3 p.m.) 253 cfa (2.80 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 

periods.

b Stage-discharge relation affected by ice.

(3.34 ft); Feb. 11 (7 a.m.) 4.93 ft

feather records and flow during adjacent
SPOKANE RIVER BASIN 265

Hayden Lake at Hayden Lake, Idaho

Location. Lat 47°46', long. 1160 45', In sec. 18, T. 51 N., R. 3 W., at Avond^le and Hayden Lake pumping plants, a quarter of a mile north of Bozanta Tavern at Hayden Lake.

Records available. May 1920 to September 1951.

Gage. Staff gage read once daily. Datum of gage is 2,200.21 ft above mean s<?a level, 

3atum of 1929.

Extremes. Maximum gage height observed during year, 40.60 ft May 17-20; miniTium observed, 

34.56 ft Oct. 16-19, 25-27, Nov. 30 to Dec. 4.

1920-51: Maximum gage height observed, 41.55 ft May 18, 19, 1950; minimum observed, 

19.38 ft Dec. 16, 1931.

Remarks. Water is pumped from lake for irrigation and domestic supply.

Revisions (water years) . W 962: 1921(M). Gage heights for period Aug. 23 to Sept. 30, 

1950, as published in Water-Supply Paper 1182 are in error and should be corrected by 

adding 0.11 ft.

Page height, In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

34.72

34.68

34.68

34.68

34.68

34.66

34.68

34.66

34.66

34.64

34.62

34.60

34.58

34.58 

34.58

34.56

34. SB

34.56

34.56 

34.58

34.64

34.62

34.60

34.58

34.56

34.56

34.56

34.58

34.60

34.64

34.66

Nov.

34.70

34.76

34.78

34.78

34.76

34.74

34.70

34.68

34.66

34.66

34.64

34.64

34.62

34.60 

34.60

34.60

34.60

34.60

34.60 

34.58

34.58

34.58

34.58

34.58

34.58

34.58

34.58

34.58

34.58

54.56

-

Dec.

34.56

34.56

34.56

34.56

34.58

34.58

34.60

34.60

34.60

34.60

34.62

34.64

34.66

34.68 

34.70

34.72

34.74

34.78

34.82 

34.86

34.96

35.04

35.16

35.38

35.57

35.65

35.74

35.80

35.84

35.88

35.92

Jan.

35.98

36.04

36.08

36.14

36.16

36. IS

36.18

36.18

36.18

36.20

36.20

36.20

36.19

36.22 

36.22

36.22

36.24

36.26

36.28 

36.30

36.30

36.30

36.32

36.32

36.34

36.40

36.66

36.66

36.66

36.66

56.68

Feb.

36.72

36.76

36.82

36.90

36.94

36.96

36.96

36.98

37.00

37.50

57.58

38.02

38.32

38.46 

38.52

38.60

38.64

38.68

38.70 

38.70

38.70

38.70

38.70

38.70

38.70

38.70

38.70

38.68

-

.

-

Mar.

38.66

38.66

38.64

38.64

38.64

38.64

38.64

38.64

38.64

38.64

38.62

38.62

38.60

38.58 

38.58

38.58

38.58

38.58

38.58 

38.58

38.58

38.58

38.60

38.62

38.64

38.66

38.68

38.72

38.72

38.76

58.82

Apr.

38.88

38.94

39.00

39.22

39.30

39.42

39.48

39.62

39.70

39.80

39.84

39.88

39.94

39.98

40.04

40.08

40.10

40.12

40.14 

40.16

40.18

40.19

40.21

40.21

40.20

40.19

40.22

40.26

40.28

40.29

-

Hay

40.30

40.30

40.36

40.42

40.46

40.46

40.44

40.42

40.40

40.38

40.42

40.46

40.50

40.51 

40.56

40.58

40.60

40.60

40.60 

40.60

40.58

40.56

40.54

40.52

40.50

40.48

40.46

40.42

40.38

40.34

40.30

June

40.26

40.22

40.16

40.12

40.09

40.07

40.06

40.04

40.02

39.98

39.95

39.92

39.88

39.84 

39.80

39.76

39.68

39.64

39.60 

39.58

39.56

39.54

39.50

39.48

39.42

39.36

39.32

39.26

39.21

39.16

-

July

39.12

39.08

39.04

39.00

38.96

38.94-

38.90

38.86

38.79

38.74

38.68

38.62

38.56

38.50 

38.44

38.38

38.32

38.26

38.20 

38.14

38.08

38.02

37.96

37.90

37.84

37.78

37.72

37.66

37.60

37.56

37.50

Aug.

37.44

37.38

37.32

37.26

37.20

37.14

37.08

37.02

36.96

36.90

36.84

36.78

36.72

36.66 

36.60

36.54

36.48

36.42

36.36 

36.30

36.24

36.18

36.12

36.06

36.00

35.96

35.92

35.88

35.84

35.80

35.76

Sept.

35.72

35.66

35.62

35.58

35.54

35.50

35.46

35.42

35.38

35.34

35.30

35.26

35.22

35.18 

35.14

35.14

35.12

35.10

35.08 

35.04

35.00

34.98

34.96

34.92

34.88

34.86

34.84

34.82

54.80

34.84

-
266 SPOKANE RIVER BASIN

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho

Location, Lat 47°46'OC>'. long. 116°47'30", in NE$ sec. 14, T. 51 N. , R. 4 W. , at dividing 

 tower at end of main pipe line, if miles west of Hayden Lake post office and pumping 

plant and 7 miles north of Coeur d'Alene.

Records available. June 1946 to September 1951. 

Gage. Water-stage recorder and Clpolletti weir.

Extremes. 1946-51: Maximum daily discharge, 16 cfs several days during June, July, and 

August 1951; no flow for long periods each year.

Remarks. Records good. Discharge at station is pumped from Hayden Lake in sec. 18, T. 

., R. 3 W. , for irrigation of about 510 acres in Hayden Lake Irrigation District.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Calendar year 1950: Max 15 Mln 0

Mar.

0

0

0

Apr.

0

0

0

May

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

3/L

0

0

0

3.7

0.12

7.3

June

0

3.1

7.8 

7.8

7.8

5.6

0

0

0

0

0

0

0

0

0

0

3.4

7.8

7.8

7.8

7.8

7.8

14

ft

0

0

0

12

16

-

144.5

4.82

287

Julj15

15

H.7

0

0

0

0

0

11

16

16

14

15

15

15

15

15

15

14

15

16

16

16 

15

16

15

16

15

14

15

379.7

12.2

753

Mean 2.03 Ao-ft 1,470

Aug.

15

15

15 

13

15

15

15

15

15

15

il

16

16

15

15

15

14

15

15

13

15

15

15

15 

15

15

14

15

4.5

0

0

421.5

13.6

836

Sept.

0

0

0

Water year 1950-51 : Max 16 Mln 0 Mean 2.60 Ae-ft 1,880
SPOKANE RIVER BASIN 

Rathdrum Prairie Canal at Huetter, Idaho

267

Location.--Lat 47°43', long. 116°52', in sec. 6, T. 50 N., R. 4 W., on right bank 450 ft 

downstream from outlet of discharge pipe, five-eighths of a mile north of pumping plant, 

and three-quarters of a mile northwest of Huetter.

Records available. April 1946 to September 1951. 

Gage. Water-stage recorder.

Extremes . 1946-51: Maximum daily discharge, 66 cfs June 29 to July 2, 1947; no flow for 

long periods each year.

Remarks. Records good. Canal carries water which is pumped from Spokane River in sec. 7, 

T. 50 N., R. 4 W., for irrigation of first unit of Rathdrum Prairie project.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

fl

0

0

0 

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

3. 7

0

0

0-

3.7

0.12

7.3

May

0

0

8.1

16 

27

27 

27

27

25

38

44

27

*28

28

28

22

0

0

0

0

20

46

if53

52

51

50

50

50

50

900.1

29.0

1,790

June

51

51

52

50 

50

40 

25

0

0

18

*49

54

54

54

54

54

54

54

54

55

55

56

56 

56

57

, 58

58

58

58

58

-

1,443

48.1

2,860

July

58

57

57

57 

57

57 

57

58

58

58

59

58

58

59

59

60

60

*60

60

59

59

58

58

58

58

58

58

58

58

57

58

1,804

58.2

3,580

A!?.

58

58

58

8

t58

57

57

57

57

57

56

56

55

*56

55

55

49

54

55

55 

55

55

54

54

54

53

53

53

1,723

55.6

3,420

Sept.

53

53

52

52 

52

52 

52

52

52

52

52

52

52

52

49

8.0

8.

0

0

0

0

0

0 

0

0

0

0

0

0

0

-

787.0

26.2

1,560

Calendar year 1950: Max 65 Mln 0 Mean 15.2 Ac -ft 10,980 

Water year 1950-51; Max 60 Mln 0 Mean 18.2 Ac-ft 13,220

* Discharge measurement made on this day.
268 SPOKAME RIVER BASIN

Spokane Valley Farms Co.'s canal at Post Falls, Idaho

Location. Lat 47°43', long. 116°57' , in sec. 3, T. 50 N., R. 5 W., on left bank 300 ft 

downstream from headgate and half a mile northwest of Post Falls.

Records available. May 1911 to September 1917, September 1919 to September 1951.

Gage. Water-stage recorder. Prior to Apr. 22, 1938, staff gages at several, sites within 

1,000 ft at various daturas.

Extremes. 1911-17. 1919-51: Maximum daily discharge, 306 cfs July 26, 1951; no flow or 

small amount of leakage during non-irrigation seasons.

Remarks.--Records good except those below 10 cfs, which are poor. Canal diverts water for 

 irrigation '' from ' Spokane River in SEi sec. 3, T. 50 N., R. 5 W.

Cooperation. Water-stage recorder inspected by employee of Spokane Valley Farms Co. Five 

discharge measurements furnished by Washington Water Power Co.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

fi

40

11

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

*0

0

0

0

0

0

0

157

5.1

311

Nov.

0

O

0

Dec.

0

0

0

Jan.

0

0

O

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

May

0 

0

0

o

0

0

0

0

0

o

0

0

0

36

107

135

157

204

228

223

171

103

132

219

253

259

275

271

273

269

270

3,585

116

7,110

June

273

277

275

254

228

208

195

199

208

206

*206

204

214

222

245

259

263

261

272

280

281

282

283

283

281

28O

282

*284

277

278

-

7,560

252

15,000

July

282 

282

286

286

283

283

283

284

282

277

280

283

286

286

288

289

290

*294

294

296

296

292

300

304

300

306

303

300

299

297

294

9,005

290

17,860

Aug.

294 

294

294

292

291

288

286

284

278

277

173

102

*266

270

165

142

*236

271

277

275

276

276

275

271

235

280

279

280

271

245

219

7,962

257

15,790

Sept.

209 

215

226

211

204

203

*201

198

194

195

198

196

183

172

70

32

25

*20

14

10

9

10

10

9

9

9

8

*8

8

8

-

3,064

102

6,080

Calendar year 1950; Max 292 Mln O Mean 87.8 Ac-ft 63,570

Water year 195O-51: Max 306 Mln o Mean 85.8 Ac-ft 62,150

Discharge measurement or field estimate made on this day.
SPOKANE RIVER BASIN 269

Spokane River near Post Falls, Idaho

Location. --Lat 47°42'10", long. 116°58'40", in SWjSWq- sec. 4, T. 50 N., R. 5 W., on right 

bank 1 mile downstream from powerplant of Washington Water Power Co., ij miles downstream from intake of Spokane Valley Farms Co.'s canal, and \\ miles southwest of 

Post Falls.

Drainage area.--3.840 sq mi.

Records available.--January 1913 to September 1951. Prior to October 1949, published 

as "at Post Falls ."

Gage.--Water-stage recorder. Datum of gage is 2,000.00 ft above sea level, referenced 

to same datum as gage on Coeur d'Alene Lake at Coeur d'Alene (see p.263). Datum of 

1929, supplementary adjustment of 1947, is 3.00 ft higher. Staff gage Jan. 1, 1913, 

to Nov. 21, 1920, and water-stage recorder Sept. 16, 1934, to Nov. 15, 1949, at site 

0.8 mile upstream. Water-stage recorder Nov. 22, 1920, to Sept. 15, 1934, at site 

0.6 mile upstream. All gages at present datum.

Average discharge. --River only, 38 years, 5,982 cfs; river, Spokane Valley Farm'5 Co.'s 

canal, and Rathdrum Prairie Canal, 38 years, 6,090 cfs.

Extremes.--Maximum discharge during year, 27,400 cfs Feb. 14 (gage height, 70.63 ft); 

minimum, 145 cfs July 28 (gage height, 55.23 ft).

1913-51: Maximum discharge, 50,100 cfs when recorder was not operating Dsc. 25, 

1933 (determined from unpublished records collected by Washington Water Powe- Co. 

for station at Liberty Bridge); minimum daily, 130 cfs Aug. 23 to Sept. 1, 1949.

Remarks.--Records good. Spokane Valley Farms Co.'s canal (see preceding page) and Rathdrum Prairie Canal (see p. 267) divert water above gage for irrigation. Figu-es of 

daily discharge do not include water diverted by these canals. Flow partly regulated 

by Coeur d'Alene Lake (see p. 263).

Cooperation. Gage-height record and one discharge measurement furnished by Washington 

Water Power Co.

Revisions.--W 1182: Drainage area.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-f1

(t)

Oct.

163 

591

646

,180

,810

,430 

,940

,260

,270

,270

,170

,190

,140

,090

,090

,100

,110 

,330

,040

,460

,420

,560

,710

,440

,110

,640

,850

,840

,380

,730

13.000

70,960

2,289

140,700

311

Nov.

8,860 

6,930

6,910

5,160

3,650

3,560 

3,080

3,630

3,590

3,340

3,090

2,470

3,590

*3, 500

3,060

3,020

3,550 

3,520

1.970

2,880

2,720

2,230

2,540

5,010

8,060

9.680

7,380

5,960

5,960

5,930

-

134, 830

4,494

267,400

0

Dec.

7,770 

8,890

6,880

4,340

2,820

2.780 

4,220

5,980

5,940

5,980

4,530

4,760

7,000

5,850

6,040

7,450

8,170 

8,760

9,500

10,200

10,800

as, 300

13,900

14, 400

15,300

16, 100

16,700

16.900

16,900

16,600

16,100

294,860

9,512

584, 800

0

Jan.

15.600 

15,200

14,600

14,200

13, 600

10,500 

6,260

3,600

3,590

3,590

4,370

7,210

7,950

7,900

7,820

5,270

3.440 

3,570

3,570

3,570

4,730

6,540

*9,070

9,910

9,800

9,840

10,500

11,200

10,800

6,790

3,710

248,300

8,010

492,500

0

Feb.

3.650 

5,340

7,480

8,110

9,360

9,030 

8,810

8,740

9,250

13,200

16,100

20,700

24,900

27,000

27.200

26,500

25,300 

24,000

22,600

21,200

 19,800

18, 600

17,500

16,500

15,500

14,600

13,600

12,800

_

-

-

447,350

15,980

887,300

0

Mar.

11.800 

10,900

10,500

10,000

8,720

8,470 

8,260

7,770

7,700

7,290

6,950

6,700

6,520

6,350

6.280

6,410

6,540 

6,620

6,540

6,540

6,650

6,730

6,750

6,700

6,710

*6,820

6,970

7,160

7,290

7,540

7,820

234,000

7,548

464,100

0

Apr.

8.020 

8,310

8,780

9,480

11,500

12,500 

13,700

14,700

15,700

16,400

16,900

17,100

17,200

17,400

17,800

18,300

18,700 

18,900

18,900

18,800

19, 100.

18,600

18,100

17,500

16,900

16,400

16,000

15, 600

15,700

15,900

-

468,890

15, 630

930,000

7.3

May

16,100 

16,100

15, 800

15,500

15,300

15,200 

15,400

16,000

16,500

16,800

17,000

17,500

*17,900

18,200

18,500

18.700

18,500 

18,300

18, 300

18,400

18,400

18, 100

17,900

17,500

17,400

17,200

16,900

16,400

15,800

15,300

.1.4.700-

525,600

16,950

*1,043

8,900

June

14. 100 

13,500

12,900

12,300

11,700

11,400 

11,000

8,400

7,170

4,650

*2,000

1.360

2,470

2,650

2,920

3,170

4,640 

5,230

5,200

3,770

3,220

3,820

3,850

4,430

4,710

3,870

3,860

3,680

3,180

2,310

-

177,460

5,915

352,000

17,860

July

1,580 

2,960

2,970

2,980

3,620

3.800 

3,100

1,600

2,450

1,760

1,400

1,500

1,510

1,530

1,500

1,280

1,160 

1,450

*1, 580

1,140

211

166

1,100

1,030

328

296

179

148

148

314

282

45,072

1,454

89,400

21,440

AVK.

420 

451

460

182

182

*331 

169

173

173

169

255

332

176

173

189

166

1ST 

169

166

256

166

169

166

169

182

*169

169

176

182

*1.120

386

7,828

253

15,530

19,210

Sept.

163 

15J7.

157

215

160

196 

166

166

166

424

322

344

374

440

169

166

366 

337

337

330

375

173

176

398

1,110

767

355

 1, 130

477

1.500

-

11,416

381

22,640

7,640

Adjust

Mean

Cfsm

In.

Ac-ft

2,294

-

_

141,000

4,494

-

_

267,400

9,512

-

_

584,800

8,010

-

_

492,500

15,980

-

_

887,300

7,548

-

_

464, 100

15,630

_

_

930,000

17,100

-

_

*1,052

6,215

-

_

369,900

1,803

-

_

110,800

565

-

_

34,740

509

-

_

30,280

Calendar year 1950 : 

Water year 1950-51 :

Max 

Max

30, 

27,

400 

200

Mln 148 

Mln 148

Mean 

Mean

9, 

7,

886 

306

Ac-ft 

Ac-ft

7,157, 

5,289,

000 

000

Adjusted

Calendar year 1950 : 

Water year 1950-51 :

Mean 

Mean

9 

7

,989 

,410

Cf sm 2 . 

Cfsm 1.

60 

93 In.

35. 

26.

32

20

Ac-ft 

Ac-ft

7,231, 

5, 36'5,

000 

000

* Discharge measurement made on this day.

t Diversion, In acre-feet, through Spokane Valley Farms Co.'s canal and Rathdrum Pralr'e Canal.

* Expressed In thousands.
270 SPOKANE RIVER BASIN

Liberty Lake at Liberty Lake, Wash.

Location. Lat 47°39'10", long. 117°05'20", in NE£ see. 22, T. 50 N., R. 45 E., on left 

 wall of concrete outlet flume at town of Liberty Lake and 15 miles east of Spokane 

Prior to June 12, 1951, on right wall of outlet flume.

Drainage area.--13.7 sq ml.

Records available. December 1950 to September 1951 (fragmentary).

Gage. Staff gage read once daily at frequent intervals. Datum of gage is 2,046.50 ft 

above mean sea level, adjustment of 1929, supplementary adjustment o*" 1947. Prior 

to June 12, 1951, staff gage on right wall of concrete outlet flume at same datum.

Extremes. Maximum gage height observed during period, 3.12 ft Feb. 19; minimum observed, 

-0.12 ft Aug. 30.

Remarks. Stage controlled by gate at lake outlet. No known diversion.

Qage height, in feet, December 195O to September 1951

Day

1

2

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

Oct. Nov. Dec.

1.40

1.36

_

1.36

1.36

1.20

1.20

1.20

1.16

1.20

1.18

_

1.14

1.14

1.14

1.12

1.12

1.14

1.14

1.16

1.18

1.20

1.20

1.18

1.18

1..18

1.20

1.20

Jan.

1.20

1.20

_

1.20

1.22

1.24

1.22

_

1.20

1.20

1.20

1.20

1.18

1.18

1.20

1.22

1.24

_

1.26

1.28

1.30

1.30

1.50

1.60

1.70

1.80

1.68

1.70

Feb.

_

1.70

1.75

1.80

-

1.8O

_

1.90

2.00

2.20

2.40

2.6O

2.70

2.80

3.00

3.04

3.10

3.12

3.08

3.08

3.02

3.00

2.96

2.92

_

-

Mar.

.

2.84

_

2.80

2.80

2.80

_

2.80

2.78

2.76

2.78

2.78

2.80

2.82

2.86

_

2.86

2.90

2.90

2.90

2.90

2.90

2.90

2.86

2.80

Apr.

2.70

_

2.66

_

2.66

2.66

_

2.62

_

2.62

2.60

2.60

2.58

2.56

2.56

-

2.52

2.48

2.46

2.40

2.40

2.48

-

May

2.46

.

2.30

_

2.20

_

2.10

2.06

_

2.04

1.94

1.90

1.84

2.02

2.08

_

2.10

2.10

2.10

2.10

_

2.10

2.10

2.08

2.00

1.92

1.90

June

_

1.90

1.90

_

1.90

_

1.90

_

1.90

-

1.88

_

1.88

1.84

-

1.80

1.78

1.72

-

1.68

_

1.64

1.60

1.56

1.52

1.50

July

_

1.48

-

1.46

-

1.44

1.40

1.38

1.34

-

1.28

.

1.24

1.22

1.20

1.18

_

1.12

_

1.04

_

.98

.96

.92

.86

.80

.72

-

Aug.

0.66

.60

.50

-

.40

.34

_

.32

_

.30

_

.28

.28

.22

.

.18

.14

.10

-

.06

.04

.00

.00

^

_

_

-.12

-

Sept.
SPOKANE RIVER BASIN 271

Spokane River at Greenacres, Wash.

Location. Lat 47°40'45", long. 117°09'25", on east line of sec. 7, T. 25 N., F. 45 E., 

on downstream side of center pier of county road bridge, half a mile north of Greenacres, and 12 miles upstream from Spokane.

Drainage area.--4.150 sq ml, approximately, of which 122 sq mi in the vicinity of Hayden 

Lake is probably noncontributing.

Records available. March 1948 to September 1951.

Gaee.--Water-stage recorder. Datum of gage is 1,975.82 ft above mean sea level (levels 

by Bureau of Reclamation). Prior to Apr. 1, 1949, water-stage recorder at site 1 mile 

downstream at different datum.

Extremes. Maximum discharge during year, 26,200 cfs Feb. 15 (gage height, 9.10 ft); minimum, 108 cfs Sept. 2, 3 (gage height, 1.22 ft).

1948-51: Maximum discharge not determined, probably occurred May 30, 19<*8, during 

period of no gage-height record (comparison with other stations on this stream Indicates a discharge of at least 40,000 cfs); minimum, 52 cfs Aug. 26, 27, 1949 (gage 

height, 1.04 ft).

Remarks. Records good except those for periods of no gage-height record, whicf are fair. 

Some diversions above station for irrigation. Some regulation by Coeur d'Alene Lake at 

Post Falls, Idaho.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.2 

1.5 

2.0 

2.5 

3.0

100

230

575

1,060

1,710

4.0 

5.0 

7.0 

9.1

3,560

6,270

14,200

26,600

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Ac-ft

Oct.

256 

4lT

578

1,050

1,620

2,380 

1,970

1,260

1,160

1,250

1,080

1,150

1,090

1,050

1,020

1,050

 1,020 

1,180

1,950 

2,410

2,410

*2,500

2,660

2,460

2,020

1,570 

1,740

2,720 

5,570

8,710

15.000

68,055

2,195

154,900

Nov.

9,000 

6,790

6,720

5,280

3,580

3,580 

2,980

 3,610

5,560

5,560

5,250

2,280

5,550

5,480

5,060

2,950

5,560 

5,520

2.070 

2,696

2,650

2,250

2,500

4,700

7,590

9.510 

7,530

5,840 

5,930

5,870

-

135,040

4,455

265,900

Dec.

7,160 

8,760

6,870

4,510

2,680

2.510 

57750

5,720

 5,690

5,720

4,410

4,280

6,690

5,720

5,650

7,090

7,790 

8,480

9,120 

9,810

10,200

12,900

15,500

15,900

14,800

15,500 

16,100

16.200 

16, 206

16,000

15,500

282,970

9,128

561,500

Jan.

15.000 

14,606

14,100

15,600

15,000

10,100 

6,150

5,540

5,490

5,490

4,060

6,820

7,610

7,500

7,470

5,580

5.540 

3,520

5,490 

5,470

4,440

6,120

8,700

9,660

9,460

9,500 

9,970

10,600 

10,500

7,300

5,800

259,780

7,755

475,600

Feb.

5.800 

*5,000

7,400

7,970

9,190

9,000 

8,810

8,700

9,080

12,600

15,800

19,800

23,800

25,900

26.100

25,600

25,000 

25,400

21,800 

20,500

19,100

17,500

16,800

15,700

14,900

14,000 

15,000

12,500

-

-

452,550

15,440

857,600

Mar.

11.400 

10,566

10,100

9,660

8,570

8,200 

 8,000

7,600

7,500

7,000

6,700

6,500

6,500

6,050

6.020

6,120

6,500 

6,450

6,400 

6,400

6,460

6,550

6,590

6,490

6,490

6,660 

6,760

6,920 

7,060

7,500

7,580

226,190

7,296

448,600

Apr.

7.790 

8,080

8,520

9,270

10,900

12,000 

15,100

14,200

15,100

15 , 900

16,400

16,600

16,800

17,000

17,500

18,000

18,200 

18,200

18,000 

18,000

18,000

18.500

18 , 000

*17,000

16,500

15,900 

15,500

15,200 

15,500

15,400

454,860

15,160

902,200

May

15,600 

15,700

15,400

15,100

14,900

14,800 

15,000

15,400

16,100

16,400

16,600

17,100

17,600

17,800

18,100

18.400

18,200 

17,800

17,800 

18,100

18,100

17,700

17,500

17,100

16,900

16,700 

16,400

*16,000 

15,500

14,900

14.400

512,900

16,550

*1,017

June

13 . 600 

13,100

12,100

11,900

11,500

11,000 

10,700

8,560

6,780

4,780

1,950

1.150

2,110

2,500

2,700

2,860

4,510 

5,010

5,000 

5,620

2,960

5,560

5,610

4,150

4,640

5,590 

5,560

5,450 

2,980

2,550

169,440

5,648

556,100

July

1,580 

2,580

2,770

2,700

5,420

5.680 

2,940

1,660

2,510

1,740

 1,550

1,580

1,420

1,460

1,440

1,250

1,180 

970

1,200 

1,100

500

250

500

600

250

250 

210

190 

180

255

220

41,040

1,524

81,400

Aug.

250 

260

270

200

150

200 

180

160

160

150

150

240

200

150

150

150

140 

140

140 

140

180

140

140

140

140

140 

140

 140 

156

3TI

455

6,170

199

1?,240

Sept.

116

"112

175

155

170 

152

152

128

514

546

514

554

414

140

128

508 

518

512 

508

550

156

152

568

882

842 

515

885

9,870

529

19,580

Calendar year 1950: Max 30,800 "In 97 Mean 9,757 Ac-ft 7,064,000

Water year 1950-51: "ax 26,100 M1*1 llz Mean 7,059 Ac-ft 5,110,000

* Discharge measurement made on this day.

* Expressed In thousands.

Note. No gage-height record Jan. 29 to Feb. 2, Mar. 6-15, Apr. 21-25, July 19 to Aug. 27; discharge estimated on basis of 1 discharge measurement and records for station below Trent Bridge, 

near Spokane.
272 SPOKANE RIVER BASIN

Spokane River below Trent Bridge, near Spokane, Wash.

Location. La t 47°41'50", long. 117°14'35", in NEi sec. 4, T. 25 N., R. 44 E., on right 

bank-half a mile downstream from Trent Bridge and 9 miles east of Spo'cane.

Drainage area. 4.210 sq mi, approximately, of which 122 sq mi In the vicinity of Hayden 

Lake is probably noncontributing.

Records available. January 1948 to September 1951.

Sage. Water-stage recorder. Datum of gage is 1,907.49 ft above mean sei level (levels 

by Bureau of Reclamation). Prior to Dec. 4, 1948, at site 20 ft upst-eam at same datum.

Extremes.--Maximum discharge during year, 27,100 cfs Feb. 14, 15 (gage h3ight, 15.13 ft); 

minimum, 660 cfs Sept. 25 (gage height, 4.27 ft).

1948-51: Maximum discharge, 40,100 cfs May 30 or 31, 1948 (gage h3ight, 18.5 ft. 

from high-water mark on gage); minimum, 615 cfs Oct. 24, 1949 (gage h3ight, 4.23 ft).

,rks.~Records excellent. Some regulation by powerplant of Washington Water Power Co. 

_t Post Falls, Idaho, and by Coeur d'Alene Lake (see p.263). Spokane Valley Farms 

Co.'s canal (see p. 268) and Rathdrum Prairie Canal (see p. 267 ) dive-t water above 

station for irrigation. In 1946 approximately 22,600 acres were wide- irrigation 

upstream from Spokane, of which about 15,000 acres utilized surface water.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

4.3

5.0

6.0

8.0

11.0

15.2

650

1,130

2,310

5,650

13,100

27,200

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23 

24

25

26 

27

26 

29

30

31

Total

Mean

Ac-ft

Oct.

855 

827

1,060

1,450

1,950

2,680 

2,410

1,800

1,610

1,790

1,570

1,600 

1,580

1,560

1,480

1,490

1,530

1,580

2,260

2,740

2,740

2,820

3,010 

2,830

2,460

2,110 

2,260

3,010 

3,680

7,620

12.900

79,262

2,557

157,200

Nov.

9,180 

6,860

6,830

5,730

4,020

3,950 

3,370

*3,980

3,950

3,710

3,610

2,800 

3,870

3,830

3,460

3,380

3,870

3,850

2,730

3,010

3,110

2,810

2.700 

4,710

7,280

9.550 

8,030

6,100 

6,100

6,070

"

142,450

4,748

282,500

Dec.

7,20O 

8,980

7,250

5,140

3,310

5.160 

4,120

6,010

*6,030

6,050

5,200

4,540 

6,970

6,330

5,950

7,320

7,960

8,650

9,250

9,990

10,400

12,800

13,600 

14,100

15,000

15,900 

16,500

16.800 

16,800

16,500

16,000

293,810

9,478

582,800

Jan.

15.600 

15,100

14,600

14,100

13,600

11,100 

7,340

4,300

4,440

4,210

4,610

6,970 

7,940

7,910

7,910

6,220

4.050

4,150

4,150

4,120

4,760

6,310

8,610 

9,910

9,800

9,770 

10,200

11,000 

10,800

*8,000

4,270

255,850

8,253

507,500

Feb.

4.190 

5,130

7,460

7,870

9,250

9,080 

8,850

8,700

9,080

12,000

15,300

19,900 

24,200

26,600

27.000

26,300

25,200

24,000

22,500

21,100

19,800

18,500

17,500 

16,500

15,600

14,600 

13,800

13,000

-

-

443,010

15,820

678,700

Mar.

12.100 

11,300

10,800

10,400

9,280

8,900 

 8,630

8,250

7,960

7,660

7,360

7,120 

6,900

6,720

6.620

6,660

6,860

6,920

6,880

6,880

6,940

7,010

7,050 

7,010

7,010

7,080 

7,190

7,390 

-7,500

7,730

7,960

244,070

7,873

484,100

Apr.

8.150 

8,410

8,820

9,420

11,200

12,300 

13,400

14,400

15,400

16,200

16,800

17,000 

17,160

17,300

17,700

18,200

18,500

18,700

18,700

18.800

18,800

18,500

18,000 

 17,400

16,800

16,300 

15,800

15,600 

15,600

15,700

465,000

15,500

922,300

May

15,900 

16,000

15,800

15,400

15,200

15,000 

15,200

15,700

16,300

16,600

16,900

17,300 

17,800

18,100

18,400

18 . 600

18,600

18 , 100

18,100

18,300

18,300

18,100

17,800 

17,800

17,200

17,100 

16,800

 16,400 

15,800

15,300

14.900

522,800

16,860

tl,037

June

14.200 

13,700

13,100

12,500

12,000

11,600 

11,400

9,280

7,620

5,920

3,140

2.240 

2,900

3,160

3,210

3,570

4,860

5,590

5,570

4,410

3,700

4,290

4,270 

4,650

5,260

4,260 

4,240

4,150 

3,650

3,180

191,620

6,387

380,100

July

2,280 

3,120

3,400

3,370

4,020

4.200 

3,540

2,600

2,910

2,530

2,070

 2,000 

2,100

2,090

2,090

2,020

1,850

1,740

2,150

1,960

1,050

855

1,550 

1,610

998

910 

855

790 

772

B58

890

63,178

2,038

125,300

Aug.

972 

984

1,020

796

760

855 

748

730

730

730

724

904

742

718

718

700

695

700

690

700

730

690

685 

685

695

690 

690

 695 

695

1.150

1,150

24,171

780

47,940

Sept.

718 

700

700

700

742

724 

712

695

695

832

874

859 

874

938

730

685

814

822

814

821

849

703

674 

846

1,190

1.570 

864

1,210 

1,140

1,190

25,485

850

50,550

Calendar year 1950: Mix 31,400 Mln 685 Mean 10,150 Ac-ft 7,348,000

Water year 1950-51: Max 27,000 Mln 674 Mean 7,536 Ao-ft 5,456,000

* Discharge measurement made on this day. 

t Expressed In thousands.
SPOKANE RIVER BASIN 273

Spokane River below Green Street, at Spokane, Wash.

Location. Lat 47°40'40", long 117°22'20", in Wj sec. 10, T. 25 N., R. 43 E., on right 

bank 250 ft downstream from Green Street Bridge at Spokane 5j miles upstream from 

Latah Creek.

Drainage area.--4.230 sq mi, approximately, of which 122 sq mi in the vicinity of Hayden 

Lake is probably noncontributing.

Records available.--December 1948 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,864.31 ft above mean sea level (levels 

tTy Bureau of Reclamation).

Extremes.--Maximum discharge during year, 28,500 cfs Feb. 15 (gage height, 16.58 ft); mini- 

 mum, 967 cfs Aug. 20, Sept. 18 (gage height, 4.33 ft); minimum daily, 976 cfs Aug. 23- 

25.

1948-51: Maximum discharge, 34,400 cfs May 16. 1949 (gage height, 18.54 ft); minimum, 702 cfs Sept. 10, 1949 (gage height, 4.09 ft); minimum daily, 916 cfs Sept. 6, 25, 

1949.

Remarks.--Records excellent. Some regulation by powerplant of Washington Water Power Co. 

aTTost Falls, Idaho, and by Coeur d'Alene Lake (see p. 263). Spokane Valley Farms 

Co.'s canal (see p. 268) and Rathdrum Prairie Canal (see p. 267) divert water above 

station for irrigation. In 1946, approximately 22,600 acres were under irrigation upstream from Spokane, of which 15,000 acres utilized surface water.

Rating table, water year 195O-51 (gage height, 

and discharge, in cubic feet per second)

in feet,

4.3 

5.0 

6.0 

7.0 

8.0

940

1,660

3,030

4,590

6,300

10.0

12.0

14.0

16.5

10,200

15,200

20,800

28,200

Discharge, In cubic feet per second, water year October 195O to September ifsi

Day

1 

2 

3

4

5

6 

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28 

29

30

31

Total

Mean

Ao-ft

Oct.

1,310 

1.180 

1,410

1,740

2,230

2,960 

2,770

2,190

1,980

2,140

1,930

1,990 

1,960

1,900

1,890

1,840

1,870

1,920

2,680

3,050

3,080

3,140

3,320

3,190

2,740

2,440 

2,560

3,240 

3,910

7,830

12.800

89,190

2,877

176,900

Nov.

9,210 

6,930 

6,930

5,980

4,360

4,310 

3,760

4,230

*4,200

4,040

3,890

3,220 

4,170

4,180

3,880

3,740

4,220

4,160

3,230

3,300

3,450

3,260

5.040

4,840

7,300

9.230 

7,940

6,350 

6,250

6,290

-

149,850

4,995

297,200

Dec.

7,260 

8,820 

7,410

5,460

5,800

3.550 

4,410

6,080

*6,160

6,140

5,560

4,680 

7,040

6,610

5,940

7,300

7,910

8,650

9,180

9,960

10,300

12,800

13,600

14,100

15,000

16,000 

16,800

17.100 

17,100

16,900

16,400

298,020

9,614

591,100

Jan.

16.000 

15,600 

15,000

14,500

13,900

11,700 

7,910

4,990

4,840

4,750

5,060

7,130 

8,200

8,100

8,130

6,770

4,580

4,700

4,650

4.540

5,110

6,610

8,500

9,850

9,750

9,800 

10,200

11,200 

10,900

8,470

*4,760

266,200

8,587

528,000

Feb.

4.700 

5,510 

7,630

7,880

9,520

9,160 

8,950

8,790

9,210

12,100

15,300

19,900 

24,500

27,200

28.000

27,400

26,400

25,100

23,600

22,100

20,700

19,500

18,300

17,300

16,300

15,300 

14,400

15,600

-

-

458,130

16,360

908,700

Mar.

12.700 

11,700 

11,200

10,700

9,750

9,280 

9,080

*8,510

8,250

7,930

7,610

7,360 

7,250

6.930

7,000

6,970

7,130

7,120

7,080

7,080

7,190

7,230

7,190

7,190

7,150

7,230 

7,320

7,530 

7,610

7,880

8,090

252,200

8,135

500,200

Apr.

8.290 

8,510 

8,870

9,540

11,300

12,400 

13,600

14,600

15,700

16,500

17,100

17,500 

17,600

17,800

18,400

19,000

19,300

19,400

19,600

19.700

19,500

19,300

18,700

*18,100

17,500

17,000 

16,500

16,300 

16,200

16,300

480,110

16,000

952,300

May

16,700 

16,700 

16,600

16,100

15,800

15,600 

15,800

16,300

16,900

17,300

17,600

18,000 

18,500

18,900

19,100

19,400

19.500

18,800

19,000

18,900

19,200

18,800

18,500

18,200

18,000

*17,800 

17,500

17,100 

16,500

16,000

15.500

544,600

17,570

*1,080

June

14 . 900 

14,200 

13,600

13,000

12,400

12,000 

11,800

9,870

S,070

6,500

,880

.970 

,450

,730

,040

,080

,160

,900

,900

,880

,190

,640

,640

,950

,550

,630 

,590

,460 

,080

,660

205,720

6,857

408,000

July

2,750 

3,350 

3,760

3,730

4,260

4.490 

3,870

3,040

3,240

2,930

2,370

 2,410 

2,370

2,390

2,380

2,400

2,130

1,970

2,420

2,300

1,510

1,250

1,740

1,860

1,430

1,250

1,250

1,180 

1.110 I,i7o

1,210

73,480

2,370

145,700

Av*.

1,240 

1,240 

1,290

1,220

1,070

1,120 

1,120

1,040

1,060

1,040

1,040

1,130 

1,110

1,030

1,020

1,020

1,020

1,010

1,020

985

1,040

1,020

976

976

985 

985

1,000 

*1,010

1,240

1,450

33,483

1,080

613,410

Sept.

1,030 

1,040 

1,030

1,080

1,110

1,040 

1,040

1,030

1,020

1,100

1,320

1,180 

1,220

1,100

1,090

990

1/150"

1,130

1,090

1,160

1,110

1,040

1,010

1,130

1,280

1.610 

1,380

1,540 

1,550

1,370

34,650

1,154

68.690

Calendar year 1950: Max 32,8OO Mln i 010 Mean 10,7OO Ao-ft 7,742,000

Water year 195O-51: Max 28,000 Mln 976 Mean 7,906 Ao-ft 5,723,000

* Discharge measurement made on this day.

* Expressed in thousands.
274 SPOKANE RIVER BASIN

Spokane River at Spokane, Wash.

Location. Lat 47°39'35" (revised), long. 117°26'50", in SWj sec. 13, T. 25 N., R. 42 

E., on right bank at Coohran Street in Spokane, half a mile upstream from Latah Creek.

Drainage area.--4,290 sq mi, approximately (revised), of which 122 sq mi in the vicinity 

of Hayden Lake is probably noncontributing.

Records available. April 1891 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 1,696.6 ft above mean sea level, datum of 

"^1929 (river-profile survey). Prior to July 1, 1921, staff or wire-weight gages, or

water-stage recorders at several sites within 4 miles of present site, at various

daturns.

Average discharge.--60 years, 6,798 cfs.

Extremes. Maximum discharge during year, 28,200 cfs Feb. 15 (gage height, 26.02 ft); 

 minimum, 218 cfs July 27 (gage height, 16.22 ft); minimum daily, 871 cfs Aug. 26. 

1891-1951: Maximum discharge, 49,000 cfs (estimated) May 31, 1894 (see WaterSupply Paper 532); minimum, 156 cfs Nov. 14, 1948 (gage height, 16.18 ft); minimum

daily, 740 cfs Sept. 7, 1947.

Remarks. Records excellent, except those for period of shifting control, which are good. 

Some regulation by powerplant of Washington Water Power Co. at Post Falls, Idaho, 

and at Spokane, and by Coeur d'Alene Lake (see p. 263). Spokane Valley Farms Co.'s 

canal (see p. 268) and Rathdrum Prairie Canal (see p. 267) divert wat?r above station 

for irrigation. In 1946 approximately 22,600 acres were under irrigation upstream 

from Spokane, of which about 15,000 acres utilized surface water.

Cooperation. Gage-height record collected in cooperation with Washington Water Power Co. 

Revisions (water years).--W 532: 1891-1904.

Rating table, water year 1950-51, except period of shifting control (gage height, 

In feet, and discharge, In cubic feet per second)

17.1

17.5

18.0

18.5

19.0

20.0

790

1,190

1,780

2,490

3,330

5,380

21.0

22.0

23.0

24.5

26.0

7,930

11,000

14,600

20,900

28,100

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12 

13

14 

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1,320 

1.060

1,420

1,610

2,310

2,910

2,600

2,080

1,800

2,040

1,780

1,820 

1,870

1,920 

1,780

1,760

1,820 

1,840

2,340

2,930

2,840

3,020

3,100

3,100

2,580

2,410

2,380

2,980

3,730

7,260

12.900

85,310

2,752

169,200

Nov.

9,340 

7,070

7,090

6,140

4,370

,370

,800

,400

* ,210

,020

,860

,060 

,070

,170 

,820

,660

,140 

,160

,100

,210

,320

,140

,900

760

,240

9.590

7,940

6,290

6,220

6,280

-

149,540

4,985

296,600

Dec.

7,080 

9,150

7,560

5,590

3,760

3.510

4,340

6,160

6,220

*6,240

5,600

4,660 

7,000

6,730 

5,980

7,420

8,000 

8,820

9,380

10 , 200

10,500

12,700

13,700

14,300

15,100

15,900

16,700

17.200

17, 200

16,900

16,500

300, 100

9,681

595,200

Jan.

16.000 

15,400

15,000

14,600

14,000

11 , 700

8,360

5,310

5,000

4,840

5,010

7,280 

8,420

8,440 

8,470

7,100

4.680 

47715

4,840

4,680

5,180

6,670

8,840

10,300

10,300

10,300

10,800

11,400

11,000

8,700

4,880

272,280

8,783

540,100

Feb.

4.750 

*5,440

7,700

8,050

9,490

9,320

9,140

9,060

9,320

12,200

15,300

19,900 

24,700

27,200 

27.700

27,200

26,300 

25,000

23,600

22,200

20,900

19,600

18,400

17,400

16,300

15,400

14,500

13,600

_

-

459,670

16,420

911,700

Calendar year 1950: Max 32,100 Mln 970

Mar.

12.800 

11,800

11,400

10,900

9,980

9,450

9,240

8,760

*8,530

8,180

7,900

7,620 

7,430

7.110 

7,160

7,160

7,240 

7,350

7,220

7,330

7,300

7,380

7,330

7,330

7,330

7,380

7,460

7,650

7,710

7,990

8,210

257,630

8,311

511,000

Apr.

8.380 

8,620

9,030

9,640

11,200

12,400

13,500

14,600

15,700

16,500

17,100

17,400 

17,500

17,800 

18,300

18,800

19,200 

19,400

19,400

19.600

19,500

19,200

18,800

18,200

*17,600

17,000

16,500

16,300

16,300

16,500

-

479,970

16,000

952,000

May

16,700 

16,700

16,600

16,200

15,900

15.600

15,666

16,200

16,900

17,300

17,400

17,900 

18,300

18,800 

19,100

19,200

19.400 

18,700

18,900

18,900

19,100

18,800

18,500

18,200

17,900

17,700

17,400

17,100

* 16, 500

16,000

15,600

543,300

17,530

*1,078

June

14 . 800 

14,266

13,600

13,100

12,500

12,100

11,900

10,100

8,280

6,760

3,860

2.920 

3,400

3,700 

4,040

4,060

5,120 

5,800

5,800

4,770

4,040

4,580

4,560

4,830

5,510

4,580

4,520

4,300

3,980

3,500

-

205,210

6,840

407,000

July

2,640

3,140

3,580

3,580

4,150

4.250

T/755

3,020

3,040

2,800

2,360

*2,340 

2,250

2,370 

2,320

2,320

2,140 

2,020

2,240

2,280

1,540

1,250

1,700

1,840

1,410

1,340

1,180

1,140

1.020 Trtio"

1,120

71,370

2,302

141,600

Aug.

1,210 

1,240

1,270

1,240

970

1,080

1,040

950

990

1,000

975

995 

1,150

890 

925

975

920 

960

935

955

950

960

910

970

940

871

990

1,000

*960

1,280

1.580

32,081

1,035

63,630

Sept.

1,010 

980

990

1,020

1,080

1,000

1,030

1,020

1,010

1,090

1,280

1,200 

1,260

1,090 

1,080

1,040

1,140 

1,150

1,040

1T160

1,160

1,060

1,060

1,130

1,280

1.620

1,360

1,340

1,600

1,400

-

34,680

1,156

68,790

Mean 10,660 Ac-ft 7,721,OCO

Water year 1950-51 : Max 27,700 Mln 871 Mean 7,921 Ac-ft 5,735,OCO

* Discharge measurement made on this day.

* Expressed In thousands.

Note. Shifting-control method used Aug. 31 to Sept. 30.
SPOKANE RIVER BASIN 275

Latah Creek at Spokane, Wash.

Location (revised). Lat 47°39'10", long. 117°26i55", in NW£ sec. 24, T. 25 N., R. 42 E., 

on left bank in Spokane three-quarters of a mile upstream from mouth.

Drainage area. 619 sq mi (revised).

Records available. April 1948 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,720 ft (from topographic map). Prior 

to Nov. 22, 1948, wire-weight gage at site half a mile upstream at different datum.

Extremes. Maximum discharge during year, 6,080 cfs Mar. 15 (gage height, 9.98 ft); minimum, 10.5 cfs Aug. 6, 14, 15 (gage height, 2.41 ft).

1948-51: Maximum discharge, 11,900 cfs May 24, 1948 (gage height, 18.73 ft, from 

floodmarks, site and datum then in use), from rating curve extended above 1,700 cfs 

on basis of slope-area and contracted-opening determinations of peak flow; minimum, 

10 cfs Sept. 3, 1949; minimum gage height, 2.41 ft Aug. 6, 14, 15, 1951.

Remarks. Records good except those for periods of ice effect or faulty intaVe action, 

which are poor. No diversion or regulation.

Rating table, water year 1950-51, except periods of Ice effect or fault^ 

Intake action (gage height, In feet, and discharge, In cubic feet per second)

2.4

2.7

3.1 

3.5 

4.0

26

65

128

245

5.0 

6.0 

7.0 

8.0 

9.0

605

1,130

1,840

2,850

4,330

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5.

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-fl

Oct.

19 

IS

20

22

25

24

24

24

22

22

22

22

22

22

22

22 

23

22

25

28

28

27

25

25

26

26 

28

29

34

38

11

785

25.3

0.041

0.05

1,560

Nov.

68 

60

50

48

52

45

41

38

35

32

32

*32

31

30

55

31 

32

35

38

44

51

46

66

72

66

127

92

74

69

-

1,603

53.4

0.086

0.10

3,180

Dec.

II

86

81

69

74

104

*461

447

325

386

450

450

335

248

305 

362

352

286

268

271

225

229

421

365

268 

213

213

254

328

429

8,444

272

0.439

0.51

16,750

Jan.

390 

318

502

710

520

372

206

223

232

196

208

191

191

200

494

918 

672

574

520

376

325

293

*376

386

881

2.950 

2Vl35

b700

b320

b270

b250

17,704

571

0.922

1.06

35,120

Feb.

b230 

b210

196

208

226

245

234

689

2,030

3,630

4.270

47535

2,650

1,350

1,000

825 

720

664

560

488

556

512

396

355

338

299 

254

226

_

-

-

27,401

979

1.58

1.65

54,350

Mar.

221 

210

191

177

159

144

146

«140

TsT

144

146

148

188

624

*2,180

2.690 

1/730

1,180

1,060

1,130

1,170

1,000

825

715

695

686 

650

578

516

528

556

20,684

667

1.08

1.24

41,030

Apr.

500 

455

436

429

429

429

414

379

33S

302

262

229

206

184

168

159 

152

144

e!38

e!30

e!23

e!15

ellO

*e!05

95

92 

86.

*e94

106

115

-

6,927

231

0.373

0.42

13,740

May

m115

104

102

100

106

100

95

94

91

89

92

104

109

115 

107

92

82

77

75

68

61

59

58

*57

55

53

50

49

12

2,676

86.3

0.139

0.16

5,310

June

45 

44

43

45

51

57

64

100

242

T35

106

84

74

65

61

55 

50

47

43

40

39

38

36

36

33

32

31

30

28

25

-

1,797

59.9

0.097

0.11

3,560

July Aug.

28 14 

25 14

27 14

27 14

27 14

28 14

27 14

27 14

25 12

27 T2

*25 13

24 13

23 12

22 12

22 12

21 12 

20 12

18 12

18 12

18 12

16 12

18 *12

18 13

18 13

17 13

16 12 

16 13

15 -16

15 if

15 16

14. 16

660 410

21.3 13.2

0.034 0.021

0.04 0.02

1,310 813

Sept.

tf

16

15

li

14

14

15

14

14

14

15

14

14

14

14 

15

14

14

14

14

14

14

14

14

14 

14

14

15

16

-

434

14.5

0.023

0.03

861

Calendar year 1950: Max 6,820 Mln 17 Mean 369 Cfsm 0.596 In. 7.96 Ac -ft 267,100

Water year 1950-51: Max 4,270 Mln 12 Mean 245 Cfsm 0.396 In. 5.39 Ae-ft 177,600

Peak discharge (base. 2.500 efsK Jan. 26 (11 p.m.) 4,380 cfs (9.03 ft); Feb. 12 (1 a.m.) 4,640 

cfs (9.19 ft); Mar. 15 (10:30 p.m.) 6,080 cfs (9,98 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

e Faulty Intake action; discharge estimated on basis of records for stations on nearby streams.
276 SPOKANE RIVER BASIN

Spokane River above Seven-Mile Bridge, near Spokane, Wash,

Location (revised). Lat 47°43'05", long. 117°29'55", in E| sec. 28, T. 26 N., R. 42 E., 

on left bank 5 miles northwest of Spokane.

Drainage area. 4.970 sq mi, approximately, of which 122 sq mi in the vicinity of Hayden 

Lake is probab1y noneontributing.

Records available. November 1948 to September 1951.

Gage . Water-stage recorder. Altitude of gage is 1,630 ft (from topographic map).

Extremes. Maximum discharge during year, 30,000 cfs Feb. 15 (gage height, 13.71 ft); 

 minimum, 557 cfs July 27 (gage height, 4.13 ft); minimum daily, 1,020 cfs Aug. 26. 

1948-51: Maximum discharge, 34,300 cfs May 16, 1949 (gage height, 14.62 ft);

minimum, 302 cfs Sept. 9, 11, 12, 1949 (gage height, 3.57 ft); minimum daily, that

of Aug. 26, 1951.

Remarks. Records good. Some regulation by powerplant of Washington Water Power Co. 

aTTost Falls, Idaho, and by Coeur d'Alene Lake (see p. 263). Spokane Valley Farms 

Co.'s canal (see p. 268) and Rathdrum Prairie Canal (see p. 267] divert water above 

station for irrigation. In 1946, approximately 22,600 acres were under irrigation 

upstream from Spokane, of which about 15,000 acres utilized surface water.

Rating tables, water year 1950-51 (gage height. In feet, and discharge, 

In cubic feet per second)

7.0 

7.7

1,170

1,900

3,090

4,920

6,480

4.5 920

5.0 1,500

5.5 2,180

6.0 2,980

Oct. 31 to Sept. 30

6.5 3,880

7.0 4,880

7.5 5,970

8.0 7,200

9.0 10,100

10.0 13,6CO

12.0 22,ICO

13.6 29,SCO

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

50

51

Total

Mean

Ao-ft

Oct.

1,560

1.250

1,620

1,770

2,480

2,950

2,760

2,360

2,080

2,260

2,010

2,050

2,080

2,100

1,960

1,980

2,050

1,980

2,480

3,040

5,040

3,040

5,280 

5,290

2,760

2,600 

2,560

5,060

3,820

6,340

13.500

89,870

2,899

178,300

Nov.

9,450

7,070

6,900

6,350

4,540

4,500

3,780

4,320

4,160

*4,120

4,180

3,180

4,280

4,520

5,940

5,800

4,380

4,520

3,460

3,340

3,560

3,420

3.110 

4^850

7,130

9.510 

8,52"5

6,520

6,460

6,500

-

153,570

5,119

304,600

Dec.

7,040

8,280

7,930

5,870

5,990

3.820

4,450

6,670

6,840

*6,600

6,160

5,020

7,590

7,160

6,540

7,690

8,350

9,120

9,580

10,400

10,700

12,100

13,900 

14,500

15,400

16,300 

16,900

17,300

17.500

17,200

16,900

307,580

9,922

610,100

Jan.

16.500

16,000

15,600

15,400

14,600

12 , 500

8,650

5,550

5,310

5,250

5,590

7,540

8,500

8,470

8,790

7,980

5,470

5,500

5,390

5.150

5,480

6,970

8,990 

10,500

11,000

14,100 

13,400

12,200

11,400

9,140

5,270

291,750

9,411

578,700

Feb.

*5.060

5,600

7,890

8,180

9,720

9,540

9,480

9,870

12,800

16,800

20,000

24,200

27,700

29,100

29.500

28,800

27,700

26,100

24 , 600

22,900

21,500

20,200

19,000 

17,800

16,700

15,800 

14,700

15,800

_

_

-

495,040

17,680

981,900

Mar.

13.100

12,300

11,600

11,100

10,200

9,700

9,330

9,000

*8,740

8,590

8,020

7,850

7.690

7,740

9,520

10,500

9,120

8,550

8,420

8,500

8,650

8,560

8,220 

8,130

8,100

8,220 

8,220

8,270

8,530

8,650

8,850

281,550

9,082

558,400

Apr.

9^000

^,090

9,510

10,000

11,700

12 , 800

13 , 900

14,900

16,000

16,900

17,400

17,700

17,900

18,100

18,600

19,200

19,600

19,800

19,800

20.100

19,900

19,700

19,100 

18,600

* 17, 900

17,200 

16,800

16 , 500

16,500

16,700

-

490,900

16,560

973,700

May

16,900

16 , 900

16,900

16 , 500

16 , 200

16 , 000

16,100

16,500

17,100

17,600

17,800

18,200

18,800

19,200

19,400

19,700

19.800

19,300

19,300

19,300

19,600

19,300

19,000 

18., 600

18,400

18,200 

17,900

17,500

*16,800

16,300

15 , 800

554 , 900

17,900

tl.101

June

15.100

14,500

14,000

15,400

12,800

12,700

12,500

10,700

8,700

6,650

4,470

5.410

3,730

4,080

4,380

4,400

5,590

6,070

6,150

6,170

3,450

4,890

4,850 

5,020

5,870

4,820 

4,780

4,640

4,160

3,980

-

215,540

7,185

427,500

July

2,96")

3,56*5

3,950

3,88")

4,39")

4.650

4,06")

3,39-)

3,37-5

3,150

2,64-3

z', 600

*2,50T

2,710

2,610

2,650

2,37-3

2,29")

2.50T

2,610

1,86")

1,43-3

1,850 

2, 12T

1,710

i'Hn

1 133-3

1.24-3

1, 503

1,28-3

79,910

2,573

158,50-3

Aug.

,570

,450

,440

,420

,160

,530

,210

,170

,190

,180

,170

,180

,350

,080

,120

,150

,130

,130

,110

,160

,090

,170

,070 

,130

,110

.020 

,140

,150

* ,100

,540

1.630

37,430

1,207

74,240

Sept.

,130

,090

,080

,090

,170

,090

,110

,100

,100

,140

,370

,270

,350

,170

,120

,140

,170

,210

,110

,210

,210

,140

.070 

,160

,530

.670 

,360

,420

,580

,360

-

36,520

1,217

72,440

Calendar year 1950: Max 32,300 Mln 1,220 Mean 11,130 Ao-ft 8,054,000

Water year 1950-51: Max 29,500 Mln 1,020 Mean 8,314 Ao-ft 6,019,000

Discharge measurement made on this day. 

Expressed In thousands.
SPOKANE RIVER BASIN 277

Little Spokane River at Elk, Wash.

Location. Lat 48°01'20", long. 117°16'20", in SE£ sec. 8, T. 29 N., R. 44 E., on right 

bank half a mile north of Elk.

Drainage area. 115 sq mi (revised).

Records available. July 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,870 ft (from topographic map).

Extremes. Maximum discharge during year, 114 cfs Apr. 4 (gage height, 1.7C ft); minimum, 

46 cfs Nov. 11 (gage height, 1.21 ft).

1948-51: Maximum discharge, 141 cfs Mar. 19, 1950 (gage height, 1.8? ft); minimum 

not determined, .probably occurred during period of no gage-height record in January or 

February 1950.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

No diversion or regulation.

Rating table, water year 1950-51 (gage height, in 

feet, and discharge, in cubic feet per second)

1.2 46

1.4 66

1.7 114

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ac-ft

Oct.

52

50

50

52

57

56

54

53

53

53

52

52

51

51

51

51

52

52

53

56

55

54

53

52

52

52

52

54

57 

63

64

1,657

53.4

0.464

0.54

3,290

Nov.

63

59

58

56

55

53

53

52

51

50

50

50

*50

50

50

52

53

54

53

53

53

52

52

54

57

57

57

55

55 

54

-

1,611

53.7

0.467

0.52

3,200

Dec.

54

53

52

52

50

50

50

50

50

51

52

 53

53

53

54

57

59

59

62

63

63

64

69

72

72

69

65

64

64 

64

64

1,807

58.3

0.507

0.58

3,580

Jan.

63

64

68

66

64

63

62

62

62

62

60

60

62

63

62

62

63

62

61

60

60

61

62

62

63

64

66

60

54 

52

53

1,908

61.5

0.535

0.62

3,780

Feb.

53

56

59

62

63

*64

64

64

72

80

96

89

86

84

83

82

82

82

80

78

78

77

77

76

74

74

:-

2,126

75.9

0.660

0.69

4,220

Mar.

73

73

72

74

73

73

72

70

70

70

69

 69

70

72

78

83

78

74

74

77

82

84

86

86

88

91

89

91

92 

94

94

2,441

78.7

0.684

0.79

4,840

Apr.

96

98

101

105

106

106

106

108

106

103

103

103

101

99

101

99

99

98

96

96

94

93

92

90

88

88

*88

94

96 

91

-

2,944

98.1

0.853

0.95

5,840

May

89

88

88

88

88

86

86

86

86

84

84

86

88

84

83

82

80

80

78

78

77

76

76

76

74

74

74

73

72 

72 *70_

2,506

80.8

0.703

0.81

4,970

June

70

70

69

69

70

72

72

70

69

69

69

69

68

68

66

65

64

63

63

63

63

62

60

63

63

62

60

59

59 

5_8_

-

1,967

65.6

0.570

0.64

3,900

July Aug.

57 49

57 49

57 49

5S 49

5<5 48

5<5 48

53 48

53 48

5* 48

5* 48

5' 48

5: 48

5T 49

5« 49

51 49

*5- 48

y 49

y 49

51 48

5? 48

5' 48

51 48

51 *49

5? 49

5r 49

5r 49

5r 49

y so

sr. 52 

y 52

If. 52

l,63 r 1,516

52.7 48.9

0.45' 0.425

O.sr o.49

3,24" 3,010

Sept.

52

51

51

50

50

49

49

49

49

49

48

48

47

47

47

47

47

47

47

47

47

47

47

48

48

48

48

48

48 

48

-

1,448

48.3

0.420

0.47

2,870

Calendar year 1950: Max 137 Min 37 Mean 64.8 Cfsm ' 0.563 In. 7.64 Ac-ft 46,890

Water year 1950-51: Max 108 Min 47 Mean 64.6 Cfsm 0.562 In. 7.63 Ac-ft 46,740

Peak discharge (base. 100 efs). Feb. 11 (10 p.m.) 101 cfs <1.63 ft); Apr. 4 (9 p.m.) 114 cfs 

(1.70 ft).

* Discharge measurement made on this day.

Note. No gage-height record Jan. 15 to Feb. 5, Apr. 21-26, June 30 to July 15, S'spt. 30j discharge estimated on basis of recorded range In stage, weather records, and records for nearby 

stations.
278 SPOKANE RIVER BASIN

Little Spokane River at Hartford, Wash.

Location (revised). Lat 47°47'00", long. 117<> 24'50", in NE£ sec. 6, T. 26 N., R. 43 E., 

on right bank 50 ft downstream from highway bridge at Dartford, 6 miles upstream from 

mouth, and 8 miles north of Spokane.

Drainage area. 665 sq mi, approximately (revised).

Records available. April 1929 to September 1932, December 1946 to September 1951.

flage. Water-stage recorder. Altitude of gage is 1.580 ft (from topographic map). Prior 

Eo Mar. 16, 1951, staff gage at same site and datum.

Average discharge. 7 years (1929-32, 1947-51), 310 cfs.

Extremes.-^Maximum discharge observed during year, 1,400 cfs Feb. 11 (gage height, 4.02 

ft); minimum discharge, 138 cfs Aug. 20 (gage height, 1.46 ft).

1929-32, 1946-51: Maximum discharge, 2,240 cfs Mar. 18, 1950 (gage height, 5.1 ft, 

from graph based on gage readings); minimum observed, 63 cfs July 24, 193^ (gage height, 

1.07 ft).

Remarks. Records good. 

No regulation.

Small diversions for irrigation and domestic use above station.

Rating table, water year 1950-51 (gage height. In 

feet, and discharge, in cubic feet per second)

1.4 

1.8 

2.4 

3.0 

4.1

121

226

470

790

1,450

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

5

4

5

6

7 

8

9ro

u

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Cfsrn

In.

Ao-ft

Oct.

152 

156

166

177

188

2OO

213

207

200

200

204 

213

204

200

200

207

207

213

213

220

226

233

226

220

213

207

213

207

240

267

262

6,474

209

O.314

0.36

12,840

Nov.

m246

240

240

233

229 

229

220

220

213 

 207

200

207

220

226

233

229

226

233

236

240

243

246

253

260

253

246

246

253

-

7,051

235

0.353

0.39

13,990

Dec.

246 

240

226

200

177

246

253 

253

250

253

 253 

260

267

253

253

267

304

352

360

386

451

505

560

540

510

480

470

480

470

480

480

10,725

346

0.520

0.60

21,270

Jan.

475 

480

490

485

480

460

446 

441

413

404

395 

382

386

395

395

413

404

404

413

404

408

413

422

451

465

475

SOO

413

*543

360

352

13,167

425

0.659

0.74

26,120

Feb.

377 

3lS

395

432

413

480

550 

636

713

933

1.400 

1,270

1,150

933

834

757

713

691

669

647

658

647

625

614

540

510

480

480

.

-

-

18,942

676

1.02

1.06

37,570

Mar.

460 

470

465

465

460

460

451 

441

432

 413

432

451

465

480

647

801

713

680

686

708

757

856

862

828

840

944

1,030

1,000

977

1,030

1.050

20,754

669

1.01

1.16

41,160

Apr.

1,010 

1,030

1,080

1,14O

1,190

1,240

1.260 

1,250

1,220

1,180

1,140 

1,080

1,040

1,010

982

960 933'

906

872

834

806

812

774

730

696

 664

642

647

702

696

-

28,526

951

1.43

1.60

56,580

May

636

614

581

592

570

570 

560

550

535

530 

535

535

535

515

500

48O

460

446

432

422

408

395

386

373

364

356

348

335

331 521

14,890

480

0.722

0.83

29,530

June

319 

312

304

30S

323

335

331 

319

312

300

289 

289

289

282

271

264

253

250

246

240

233

229

229

243

243

229

223

213

210

207

-

8,095

270

0.406

0.45

16,060

July Aug.

2O4 154 

204 154

200 154

200 152

204 152

210 149

207 144 

200 140

194 T35

191 147

186 147 

183 147

183 147

*180 149

180 149

177 147

174 147

174 144

172 142

169 140

166 140

166 142

166 142

164 142

164 144

161 144

161 144

161 152

159 166

159 >174

156 174

5,575 4,611

180 149

0.271 0.224

0.31 0.26

11,060 9,150

Sept.

172 

172

169

166

164

161

161 

159

161

159

159 

161

161

164

161

159

159

159

156

156

154

154

154

152

159

166

166

166

169

180

-

4,859

162

0.244

0.27

9,640

Calendar year 1950: Max 2,090 Mln 140 Mean 410 Cfsm 0.617 In. 8.37 Ac -ft 296,700

Water year 1950-51: Max 1,400 Mln 140 Mean 394 Cfsm 0.592 In. 8.03 Ac-ft 285,000

Discharge measurement made on this day.
SPOKANE RIVER BASIN 279

Little Spokane River near Dartford, Wash.

Location (revised) . Lat 47"46'50", long. 117°29'45", in NW$ sec. 3, T. 26 N., R. 42 E., 

In left center of stream on downstream side of bridge 3 miles upstream from mouth and 

4 miles west of Dartford.

Drainage area. 698 sq mi (revised).

Records available. April 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,550 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,660 cfs Feb. 12 (gage height, 6.82 ft); mini- 

 mum, 386 cfs Aug. 8 (gage height, 3.04 ft).

1948-51: Maximum discharge, 2,220 cfs Bar. 18, 1950 (gage height, 7.40 ft); minimum, 377 cfs Sept. 3, 1949 (gage height, 2.89 ft).

Remarks. Records good. Many small diversions for irrigation and domestic use above 

station. No regulation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

3.0 

3.5 

4.0

383

433

504

5.0 

6.0 

6.7

679

1,020

1,550

Discharge, in cubic feet per second, water year October 1950 to September 1951.

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

IS

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

400

392

399

409

426

447

449

433 

434

442

441

437 

436

431

428

428

433

441

443

464

478

464

450

445

443

447

453

457

474

520

5£1

13,812

443

0.639

0.74

27,400

Nov.

|2i flo

501

494

4S9

480

473

470 

463

457

 456

456 

453

453

452.

454

468

474

470

464

464

464

464

470

488

501

501

492

486

488

-

14,289

476

0.682

0.76

28,340

Dec.

498

496

494

484

153

470

490

489 

483

483

*489

489 

507

506

506

512

544

590

608

611

648

665

674

738

81£

779

746

72?

725

720

722

18,153

586

0.840

0.97

36,010

Jan.

730

722

744

757

733

704

654

626 

652

643

633

629 

326

633

646

661

374

670

346

646

641

641

629

633

641

738 ssi 673

585

613

20,356

663

0.954

1.10

40,970

Feb.

618

Its

648

668

 670

650

643

643 

704

958

1,320

1.480 

TT?50

1,140

1,070

994

949

921

909

881

881

864

837

815

803

785

765

735

_

-

24,236

866

1.24

1.29

48,070

Mar.

730

730

709

696

709

677

668

679 

692

 665

£41

689

725

752

1,030

939

909

897

901

935

994

1,040

1,030

1,010

1,080

1,180

1,230

1,170

1,210

1.240

27,220

878

1.26

1.45

53,990

Apr.

1,220

1,220

1,270

1,320

1,380

1,440

1,450

1.460 

1,430

1,400

1,350

1,300 

1,260

1,230

1,200

1,180

1,160

1,130

1,110

1,080

1,040

1,030

1,010

972

944

913

893

#893

913

939

-

35,137

1,171

1.68

1.87

69,690

May

909

881

864

841

834

834

818

815 

809

797

785

788 

788

791

779

763

741

717

696

684

672

653

639

635

626

611

602

592

579

 571

566

22,683

732

1.05

1.21

44,990

June

558

550

542

544

558

574

577

566 

553

544

530

530 

528

522

512

502

494

488

482

476

471

470

466

470

478

467

457

452

449

443.

15,253

508

0.728

0.81

30,250

July

442

438

437

441

441

446.

446

440 

434

431

427

425 

421

 419

416

414

412

409

408

405

404

404

404

403

402

401

400

399

398

396

395.

12,958

418

0.599

0.39

25,700

AVK.

394

394

394

393

392

391

389

III

390

391

392 

393

395

395

394

393

391

391

391

390

390

390

391

391

391

 392

397

408

412.

416

12,215

394

0.564

0.65

24,230

Sept.

414

413

412

410

407

405

405

406 

404

404

404

405 

405

405

403

402

401

400

399

398

397

397

396.

ft?

402

408

410

411

413

121

12,154

405

0.580

0.65

24,110

Calendar year 1950 : Max 2,020 Mln 399 Mean 627 Cfsm 0.898 In. 12.20 Ac-ft 454, 000

Water year 1950-51 : Max 1,480 Min 388 Mean 627 Cfsm 0.898 In. 12.19 Ac-ft 453,800

Peak discharge (base. 1.000 efsK Feb. 12 (2 a.m.) 1,6 (6.ll ft)" 

* Discharge measurement made on this day.

cfs (6.82 ft) } Apr. 7 (6 p.m.) 1,470 cfs

288995 O - 54 - 19
280 SPOKANE RIVER BASIN

Long Lake at Long Lake, Wash.

Location.--Lat 47°50'15", long. 117°50'10", in NWiSWJL seo. 13, T. 27 N., R. 39 E., at left

 end of spillway at Long Lake dam, 12 miles north of Reardan.

Drainage area.--5,920 sq mi, approximately.

Records available. April 1939 to September 1951. Prior to September 194S, month end storage changes combined with those for Coeur d'Alene Lake, published with tables of monthly 

discharge for Spokane River at Long Lake. October 1946 to September 1950, month end 

storage changes for Long Lake published as adjustment to recorded discharge of Spokane 

River at Long Lake.

Gage.--Water-stage recorder and staff gage, with long distance indicator in powerhouse. 

"Saturn of gage is at mean sea level (levels by Washington Water Power C->.).

Extremes.--Maximum contents during year, 104,200 acre-ft Sept. 4, 5, 9, 10, J.6. 17 (ele-

 vation, 1,536.0 ft); minimum, 77,700 acre-ft Dec. 26 (elevation, 1,530.6 ft).

1939-51: Maximum contents, 104,200 acre-ft during month of July 1950, Sept. 4, 5, 9, 

10, 16, 17, 1951 (elevation, 1,536.0 ft); minimum, 16,100 acre-ft Apr. 4, 1944 (elevation, 1,516.35 ft).

Remarks. Reservoir is formed by concrete dam. Capacity, 104,200 acre-ft between eleva-

 tions 1,512 ft (lower limit of normal operation) and 1,536 ft (top of gates). Records 

given herein represent usable contents. Mater used for power. Diversions above station for irrigation of large acreage in Idaho and Washington. Other regulation in 

Coeur d'Alene Lake and at powerplants along Spokane River.

Cooperation. Lake elevations and capacity table furnished by Washington Water Power Co.

Monthly elevation and contents, water year October 1950 to September 1951

Bate Elevation 

(feet)t

1 535 82

1 532 57 *

1,535.86

Contents 

(acre-feet)

103,500

Change In contents 

during fonth 

(acre -feet)

5 ?50

+^50

 3 ^50

+4,700

t Elevation at midnight.
SPOKANE RIVER BASIN 281

Spokane River at Long Lake, Wash.

Location. La t 47°50'15", long. 117°50>25", in SW£ sec. 13, T. 27 N., R. 39 E., on left 

bank at Long Lake powerhouse 1-J miles upstream from Chamokane Creek, 12 miles north 

of Reardan.

Drainage area. 5,920 sq mi, approximately (revised), of which 122 sq mi in thfl vicinity 

of Hayden Lake is probably noncontributing.

Records available. April 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,299.00 ft above mean sea level, datum of

Average discharge. 12 years, 7,713 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 44,900 cfs Apr. 15 (gage height, 77.20 ft); min-

 Imum not determined, occurred during period of backwater from Little Palls powerplant; 

minimum daily, 222 cfs Sept. 2, 3 (determined from powerplant records).

1939-51: Maximum discharge recorded, 49,400 cfs May 24, 1948 (gage height, 78.66 

ft); minimum recorded, 115 cfs Oct. 6, 1939 (gage height, 57.66 ft), but may have been 

less during periods of backwater; minimum daily, 144 cfs Sept. 15, 1946, Au-r. 24, 1947 

(determined from powerplant records).

Remarks. Flow regulated above station by Coeur d'Alene (see p. 263) and Long Lakes, and

 5y~~powerplants of Washington Water Power Co. Capacity of Long Lake 79,600 acre-ft, 

elevations 1,512 and 1,531 ft above mean sea level, adjustment of 1912. Water diverted 

for irrigation above station and is equivalent to that shown for Spokane River at 

Spokane (see p. 274).

Discharge, in cubic feet per second, water year October 195O 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

Tote]

Mean

ft""

Oct.

727 

2,630 

3,130

3,020

3,510

3,680

3,100 

1,010 

3,130

3,320

3,120

3,080

3,080

2,250 

659

3,250

3,170 

3,250

3,220

4,150

3,700

2,570

4,480 

3,870

4,280

3,550

3,360

4,250

2,720

4,820

14.000

108,086

3,487

214,400

+1,700

Nov.

11.100 

9,710 

6,310

7,680

5,250

5,200

4,920 

5,780 

4,720

4,560

4,990

4,060

4,710

4,940 

4,400

4,930

4,780 

4,540

3,990

4,750

4,140

4,160

3.060

6^800

10,400

9,680

7,960

6,150

7,610

176,020

5,867

349,100

+50

Dec.

8,750 

9,710 

9,130

7,250

5,030

5,070

4.S20 

5,330 

7,460

7,260

7,180

6,680

6,130

8,190 

7,610

6,720

9,940 

10,200

11,200

11,600

12 , 200

14,000

17 , 400 

21.800

21 , 700

13,700

17,200

17,700

18,100

20,900

15,700

345,660

11,150

685,600

-16,160

Jan.

16.400 

13 ] 600 

14,700

12,900

16,300

15,900

14,800 

4.950 

5,110

5,280

5,310

7,230

10,000

9,670 

9,610

9,000

7,040 

6,600

6,620

6,600

6,220

7,420

8,990 

11,300

12,000

15,000

14,600

15,200

11,500

8,620

6,560

317,030

10,230

628,800

+14,660

Feb.

5.760 

6,340 

9,340

10,200

9,450

11,000

10,500 

10,600

14,900

15,200

23,000

27,600

27,600

31.700 

30,300

30,200

28,300 

31,400

24,700

25,500

20,800

20,100

19,400 

19,100

19,000

17,900

15,400

13,300

_

-

528,590

18,880

*1,048

-3 , 100

Mar.

13,600 

13.700 

11,000

12,900

10,500

11,300

9,350 

9,940 

9,800

10,100

9,780

7,170

8,530

8,170 

10,100

13,600

11,600 

6.240

7,170

9,960

10,000

9,850

9,890 

9,950

9,610

9,230

9,450

10,000

10,500

9,240

10,500

312,730

10,090

620,300

+3,750

Apr.

11,300 

10,000 

10,900

8.600

12,666

16 , 000

14,900 

21,000 

13 , 100

19,300

19,200

19,700

18,200

18,500 

20,600

20,600

20,400 

21,500

21,500

21.700

20,800

21,100

20,700 

18,800

19,900

17,700

18,700

19,300

17,600

20,000

-

534,400

17,810

*1,060

-5,250

May

17,600 

17 , 500 

18,200

19,000

17 , 800

16,200

17,100 

16 , 300 

18,500

19,200

16,600

20,500

20,200

20,100 

21,100

21,000

21.700 

20,000

21,600

20,600

20,200

19,600

21,000 

19,900

18,300

20,300

20,100

17,000

17,300

20,300

15.900

591,000

19,060

*1,172

-1,000

June

15,400 

14,300 

17.000

15,000

12 , 700

12,600

13,500 

14,600 

9,810

9,000

5,640

5,550

5,560

5,680 

5,540

5,250

5,690 

4,830

5,360

5,500

5,450

5,330

5,170 

4,740

9,580

5,960

5,290

4,620

4,810

4,740

-

242,200

8,073

480,400

+6,200

July

3,230 

4,500 

4,770

2,620

5.490

5,160

4,950 

3,920 

3,400

2,090

2,350

3,090

3,090

3,010 

3,150

2,840

3,160 

3,180

3,080

3,080

2,170

1,340

2,410 

2,490

2,470

2,630

2,710

1.080

1,430

1,970

2,490

93,350

3,011

185,200

+350

Aug.

2,230 

2,410 

2,300

747

1,180

2,280

1,940 

2,180 

2,230

2,380

549

561

3.030

1,960 

1,850

1,290

2,090 

1,110

516

2,410

2,220

2,180

2,050 

2,050

898

415

2,830

2,550

2,390

2,410

2,380

57,616

1,859

114,300

-3,950

Sept.

305 

222 

55?

1,730

2,430

2,240

1,910 

538 

1,000

2,450

2,150

1,150

2,200

2,050 

716

728

2,450 

2,370

2,220

2,250

2,540

1,220

2.980 

2,500

2,210

1,860

2,210

2,340

2,120

1,750

-

53,061

1,769

105,200

+4,700

Adjusted for change in lake contents

Mean

Cfsm

In.

Ao-ft

3,515

-

_

216,100

5,869

-

_

349,200

10,890

.

_

669,400

10,470

_

_

643 , 500

18,820

_

_

*1,045

10,150

_

_

624,000

17,730

-

_

*1,055

19,040

-

_

*1,171

8,178

-

_

486,600

3,018

-

-

185,600

1,795

-

-

110,400

1,847

-

-

109,900

Calendar year 1950: 

Water year 1950-51 :

Max 35,600 Min 202 

Max 31,700 Min 222

Mean 12,010 

Mean 9,205

Ac -ft 

Ac -ft

8,698,000 

6,663,000

Adjusted

Calendar year 1950 : 

Water year 1950-51 :

Mean 12,010 Cfsm 2.03 

Mean 9,207 Cfsm 1.56

In. 27.54 

In. 21.11

Ac -ft 

Ac-ft

8,697,000 

6,666,000

t Change in contents in Long Lake, in acre-feet, furnished by Washington Water Power Co. 

* Expressed in thousands.

Note. Backwater from Little Palls Dam Oct. 1 to Sept. 30; discharge computed by Washington Water 

Power Co. from powerplant records. Change in contents for Long Lake based on 12 p.m. gage readings.
282 COLUMBIA RIVER MAIN STEM

Franklin D. Roosevelt Lake at Grand Coulee Dam, Wash.

Location. Lat 47e 57'20", long. 118e 59'10", In lot 3, sec. 1, T. 28 N., R. 30 E., in block 

18 of Grand Coulee Dam at Grand Coulee.

Drainage area. 74,100 sq mi, approximately. 

Records available. April 1938 to September 1951.

Gage. Water-stjage recorder. Datum of gage is at mean sea level, Bureau of Reclamation 

datum, or 1.425 ft above mean sea level, datum of 1929, supplementary adjustment of 

1947 (levels by Bureau of Reclamation).

Extremes. Maximum contents during year, 9,655,000 acre-ft July 9 (elevation, 1,290.00

 ft); minimum, 8,983,000 acre-ft Mar. 27 (elevation, 1,281.83 ft).

1938-51: Maximum contents recorded, 9,679,900 acre-ft July 17, 1942, June 3, 1945 

(elevation, 1,290.3 ft); minimum observed, 16,200 acre-ft Aug. 29, 1938 (elevation, 

956.1 ft).

Remarks. Reservoir formed by concrete dam; construction of dam began in 1934; completed

 ETT941; storage began early in construction period. Capacity. 5,118,000 acre-ft 

between elevations 1,208 ft (proposed lower limit of operation) and 1,288 ft (top of 

gates) above mean sea level. Dead storage, 4,371,000 acre-ft. Figures given herein 

represent total contents. Water is used for power development and diversion by pumping, beginning in May 1951, for irrigation of Grand Coulee Project of Bureau of 

Reclamation.

Cooperation. Gage-height record and reservoir areas furnished by Bureau of Reclamation.

Elevation, in feet, at 8 a.m., water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

87.77

87.68

87.65

87.45

87.51

87.59

87.70

87.65

87.69

87.64

87.98

87.93

87.84

87.88

87.97

88.08

87.97

87.66

87.49

87.54

87.51

87.49

87.43

87.47

87.40

87.30

87.20

87.28

87.46

87.47

87.74

Nov.

87.98

88.02

87.88

87.59

87.15

87.02

87.03

86.94

86.98

87.00

86.98

86.98

86.96

86.98

87.10

87.18

87.11

86.93

87.01

86.88

86. SB

86.80

86.92

86.89

87.01

87.16

86.96

86.99

87.00

87.15

-

Dec.

87.12

87.12

87.01

87.04

86.89

86.79

86.61

86.59

86.51

86.66

86.80

86.89

86.78

86.72

86.72

86.80

86.80

86.94

86.99

87.03

87.00

87.05

87.07

87.24

87.58

87.83

87.76

87.86

87.93

87.76

87.59

Jan.

87.19

87.11

S6.66

86.15

86.11

86.43

86.52

86.17

86.29

86.51

86.74

86.82

86.92

86.95

87.02

86.88

86.73

86.70

86.64-

86.44

86.27

85.85

85.83

86.00

85.98

85.91

85.83

85.98

86.10

35.88

85.58

Feb.

85.20

84.90

84.77

84.87

85.15

85.16

85.23

85.25

85.17

85.04

85.25

85.64

86.01

86.47

86.88

87.12

86.95

86.86

86.96

86.85

86.80

86.91

86.78

86.88

86.57

86.62

86.52

86.56

_

-

Mar.

86.57

86.60

86.55

86.40

86.36

86.61

86.42

86,26

85.95

85.57

85.36

85.06

84.68

84.45

84.25

84.05

83.91

83.64

83.30

83.01

82.66

82.52

82.30

82.00

81.95

81.90

81.91

82.04

82.07

82.00

82.05

Apr.

82.02

82.01

82.14

82.12

82.28

82.59

82.97

83.45

83.90

84.76

85.31

86.10

86.83

87.51

88.09

88.37

88.24

87.79

87.17

86.45

85.73

85.10

84.49

85.13

84.15

84.26

84.28

84.35

84.47

84.60

-

Hay

84.78

84.73

84.58

84.42

84.43

84.73

84.93

84.85

84.24

83.23

82.58

82.38

82.50

82.36

82.23

82.41

82.47

82.36

82.20

82.63

82.80

83.26

83.35

84.24

85.35

86.34

87.28

87.60

88.22

88.85

89.01

June

89.02

85.85

88.83

89.01

88.98

88.88

88.83

88.71

88.54

88.57

88.62

88.93

89.12

89.07

89.06

89.10

89.03

89.05

89.00

89.19

89.35

89.52

89.65

89.75

89.83

89.85

89.81

89.82

89.82

89.78

-

Jvly

81.79

8". 81

8*. 81

81.93

81.83

8^.86

89.87

89.95

90.00

83.92

89.91

89.90

89.90

89.98

89.88

89.90

89.87

89.81

89.94

89.92

89.87

89.87

89.93

89.89

89.92

89.83

89.80

89.79

89.77

89.80

89.77

Aug.

89.83

89.88

89.83

89.80

89.80

89.80

89.50

88.86

88.10

87.29

87.06

87.22

87.17

87.06

86.99

87.05

87.33

87.78

87.95

87.88

87.90

87.95

87.95

87.87

87.90

87.91

87.91

87.84

87.87

87.91

87.88

Sept.

87.87

87.90

87.89

87.88

87.91

87.81

87.70

87.58

87.64

87.65

87.54

87.66

87.69

87.70

87.68

87.57

87.59

87.50

87.56

87.56

87.51

87.62

87.68

87.69

87.62

87.79

87.87

87.75

87.66

87.86

-

Note. Add 1,200 ft to obtain elevation above mean sea level. Bureau of Reclamation datum.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Nov . 30 ................

Calendar year 1950 . . .

Jan . 31 ................

May 31 ................

July 31 ................

Aug. 31................

Sept. 30.. ..............

Water year 1950-51...

Elevation 

(feet)t

-

1,288.0

-

Contents 

(acre-feet)

-

9,210,200

9,489,000

-

Change in cortents 

during morth 

(acre-feet)

-65,600

+188,600

+211,200

-8,300

-157,600

+8,200

+16,400

t Elevation at 12 p.
COLUMBIA RIVER MAIN STEM 283

Columbia River at Grand Coulee Dam, Wash.

Location. Lat 47"58'00", long. 118°58'45", opposite lot 4, sec. 36, T. 29 N., R. 30 E.,

 in pier 3 of highway bridge, 2,500 ft downstream from Coulee Dam and 14 miles upstream 

from Nespelem River.

Drainage area. 74,100 sq mi, approximately.

Heoords available. April 1913 to September 1951 (monthly discharge only, Ap*-il 1913 to 

June 1923, January 1924 to May 1928).

Gage. Water-stage recorder. Datum of gage is at mean sea level, Bureau of Reclamation, 

adjustment of 1937. June 27 to Dec. 31, 1923, June 12, 1928, to Feb. 14, 1931, staff 

gages, the latter at present datum, the former at datum 2.4 ft lower, both on right 

bank at site approximately 1,000 ft upstream. Feb. 15, 1931, to Dec. 31, 1935, waterstage recorder on right bank at site 850 ft downstream, at present datum.

Average discharge.--38 years, 107,700 cfs (adjusted for diversion by pumping from Franklin 

D.Roosevelt Lake since May 1951, and change in contents in Franklin D. Roosevelt Lake 

since October 1939).

Extremes.--Maximum discharge during year, 376,800 cfs May 28 (elevation 973.70 ft); minimum, 36,500 cfs Oct. 6 (elevation, 937.24 ft).

1913-51: Maximum discharge, 637,800 cfs June 12, 1948 (elevation, 987.90 ft); minimum, may have been less than 15,300 cfs (estimated) in January or February 1937, when 

stage-discharge relation was affected by ice.

Maximum discharge known, 725,000 cfs (estimated) during flood of June 1894.

Remarks.--Records excellent except those for periods of no gage-height record, which are 

good. Diversion by pumping from Franklin D. Roosevelt Lake for Columbia basin project. 

Other diversions above station for irrigation is small percentage of flow past gage. 

Flow regulated by Franklin D. Roosevelt Lake (see preceding page) and reservoirs in 

Kootenai, Pend Oreille, and Spokane River basins. Records of chemical analyses and 

water temperatures for the water year 1951 are given In Water-Supply Pape" 1200.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

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 

30 

31

Total 

Mean 

Ac-fl 

(t)

Oct.

56,800 

62,800 

62,200 

56,000 

52,300

50.600 

51,100 

51,100 

55,800 

52,400

55,900 

*55,100 

54,600 

54,600 

53,200

60,500 

65,200 

69,500 

63,700 

64,000

68,400 

67,200 

64,200 

67,700 

70,600

71,200 

71,400 

70,800 

70,300 

72,500 

78.500

*1,920.2 

61,940 

*3,809 

0

Nov.

86,700 

89.700 

88,500 

88,700 

82,800

75,900 

75,500 

69,500 

71,400 

69,100

67,700 

67,100 

62,800 

59,800 

63,400

67,300 

73,100 

65,800 

57,800 

65,600

56,100 

56,500 

48.700 

58,600 

59,400

67,600 

67,500 

60,500 

60,400 

*64,100

$2,047.5 

68,250 

+4,061 

-65,600

Dec.

68,900 

64,700 

62 , 900 

62,200 

62,600

59,900 

59,600 

57,300 

53,500 

49.000

53,600 

58,000 

61,200 

61,000 

60,200

56,500 

55,900 

63,200 

62,400 

62,500

67,000 

68,000 

66,600 

74,600 

85,200

97,100 

98,500 

101,200 

102,600 

103,000 

105.200

$2,164.1 

69,810 

*4,292 

+24,600

Jan.

100,600 

103,900 

104.300

96,700 

75,400

77,500 

81,500 

71,800 

64,700 

*63.000

65,800 

76,200 

76,700 

76,200 

77,500

77,300 

77,100 

75,800 

78,100 

79,900

80,400 

74,300 

67,200 

66,200 

73,300

74,200 

75,600 

63,700 

68,300 

66,600 

65,900

+ 2,375.7 

76,640 

+4,712 

-164,000

Feb.

63,700 

62,300 

56,300 

51.100 

57,100

61,600 

59,800 

65,800 

73,800 

77,800

78,200 

81 , 900 

89,300 

92,800 

97,700

122.300

122,100 

111,300 

117,400 

114,000

*L04,400 

99,300 

102,500 

101,500 

99,200

92,600 

89,100 

87,000

$2,431.9 

86,850 

+4,824 

+106,600

Mar.

81,000 

82.800 

82,000 

81,900 

75,700

71,500 

79,300 

79,200 

79,900 

76,400

78,500 

78,000 

76,900 

74,300 

75,300

78,600 

78,300 

79,900 

79,900 

79,300

74,900 

74,900 

73,500 

72,100 

61.400

65,000 

62,400 

61,600 

 63,900 

63,800 

62,800

+2,305 

74,350 

*4,572 

-375,200

Apr.

64 . 500

65,300 

71,600 

70,200 

71,900

73,400 

76,600 

79,300 

77,300 

66,500

77,700 

72,000 

81,100 

92,400 

105,500

122,500 

146,500 

159,900 

167,400 

168.800

164,200 

161,200 

155,300 

135,900 

128,700

132,700 

135,200 

135,600 

136,300 

139,300

+3,334.8 

111,200 

+6,614 

H211,200

May

146.800

156,600 

158,800 

157,200 

154,900

162,400 

184,200 

208,800 

250,400 

259,400

254,800 

260,200 

284,400 

305,500 

305,500

314,400 

335,400 

'351,900 

341,100 

342,900

338,200 

343,200 

*337,800 

a337,800 

336,400

340,400 

353,400 

362.500

344,700 

*351, 900 

a352,300

*8,734.2 

281,700 

+17,320 

+394,800

June

352.400

340,300 

330,600 

326,800 

326,000

316,100 

307,700 

295,600 

282,800 

270,500

254,800 

252.600

269,900 

277,000 

283,500

»299,700 

309,100 

319,900 

320,900 

316,900

323,100 

318,800 

319,600 

320,500 

317,000

314,800 

*312,100 

309,200 

303 , 600 

300,000

$9,191.8 

306,400 

+18,230 

+ 148,700

July

292,700 

292,600 

284,100 

289,500 

294,800

294,700 

292,800 

296,600 

300.300

298,700

295,800 

292,800 

285,300 

286,400 

284,400

283,000 

282,100 

275,600 

280,600 

282 , 400

277,800 

266,300 

263,000 

255,000 

249,100

243,400 

234,200 

»228,300 

216,900 

215,700 

208.700

$8,443.6 

272,400 

*16, 750 

+134,700

Aug.

199.800

198,900 

194,100 

187,500 

179,400

183,500 

195,200 

196,900 

196,000 

173,000

134,300 

132,100 

133,400 

119,700 

107,200

99,200 

95,600 

94,400 

98,800 

94,900

97,500 

87.000 

92,300 

190,700 

88,400

90,200 

94,200 

93,200 

90,200 

90,200 

89,400

M.017.2 

129,600 

+7,968 

t-25,400

Sept.

86,700 

85,600 

87,000 

87.900 

83,700

81,800 

77,100 

72,300 

65,300 

77,700

72,500 

71,000 

70,600 

71,400 

70,200

64,200 

70,200 

61,200 

60,300 

61,600

 60,700 

61,600 

59,000 

62,800 

57,500

59,800 

63,700 

64,100 

56,200 

50.500

*2,074.2 

69,140 

+4,114 

KL28,200

Adjusted for diversion by pumping and change In contents

Mean

Cfsm

In.

Ac-ft

61,940

.

_

*3,809

67,140

_

*3,995

70,210

_

_

*4,317

73,970

_

_

*4,548

88,790

_

_

*4,931

68,260

_

_

*4,197

114,700

.

_

*6,625

288,000

_

_

*17,710

308,900

_

_

*18,380

274,500

_

_

*16,880

130,000

.

_

*7,993

71,290

-

_

+4,242

Calendar year 1950: 

Water year 1950-51:

Max 

Max

494,500 

362,500

Min 43,200 Mean 132,800 Ac-ft 

Mln 48,700 Mean 134,400 Ac-ft

96,140,000 

97,270,000

Adjusted

Calendar year 1950; 

Water year 1950-51:

Mean 

Mean

133,000 

135,100

Cfsm - In. 

Cfsm 1.82 In . 24-75

Ac-ft 

Ac-ft

96,320,000 

97,830,000

* Discharge measurement made on this day.

t Diversion by pumping from Franklin D. Roosevelt Lake for Columbia basin Project, and change In 

contents In Franklin D. Roosevelt Lake, In acre-feet. Records furnished by Bureau of Reclamation.

+ Expressed In thousands.

a No gage-height record; discharge estimated on basla of record collected by the Bvreau of Reclamation.
284 OKANOGAN RIVER BASIN

Okanagan River at Okanagan Falls, British Columbia 

(International gaging station)

Location.--Lat 49°21', long. 119°35', on right bank 400 ft downstream from falls at 

Okanagan Falls, British Columbia, and 800 ft downstream from Skaha Lake.

Drainage area.--2.650 sq mi, approximately.

Records available. October 1930 to September 1951 In reports of Geological Survey. 

March 1915 to September 1930 in reports of Department of Resources and Development, 

Canada.

Gage.--Water-stage recorder. Datum of gage is 1,092.82 ft above mean sea level (Geodetic 

:5urvey of Canada, 1947 Joint adjustment). Prior to Oct. 2, 1933, staff gages at sites 

about 400 and 500 ft upstream at different datums. Oct. 2, 1933, to Apr. 14, 1936, 

staff gage at same site and datum.

Average discharge. 36 years, 498 cfs.

Extremes.--Maximum discharge during year. 1,440 cfs May 13 (gage height, 3.08 ft); minimum, 

458 cfs Oct. 25 (gage height, 1.77 ft).

1915-51: Maximum discharge observed, 2,680 cfs June 10, 1928; minimum observed, 4.6 

cfs Mar. 14, 1931.

Remarks.--Diversions above station for irrigation. Flow regulated by control dam at outlet 

of Okanagan Lake.

Cooperation. This station is one of the international gaging stations maintained by Canada 

under agreement with the United States.

Revisions..--W 1152: Drainage area.

Rating table, water year 195O-51 (gage height, in feet, and 

discharge, in cubic feet per second)

1.8 

2.0 

2.2

475

590

715

2.5 

2.8 

3.1

940

1,180

1,460

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ao-ft

Oct.

480

48O 

*421

480

486

486

475

5O2

492

492

497

502

502

502

514

514

508

508

519

5S1

514

497

497

*486

486

492

5O8

5O8

5O8

508

508

15,450

498

30,640

Nov.

519

519 

524

519

524

519

524

53O

519

524

524

536

519

519

524

572

578

578

548

542

554

560

530

542

56O

572

590

59O

*590

602

-

16,351

545

32,430

Dec.

6O8

590 

590

590

566

566

572

578

596

602

62O

638

650

656

663

67O

676

676

689

689

676

676

682

682

696

689

676

676

*682

702

702

20,024

646

39,720

Jan.

696

708 

722

722

715

702

682

676

67 O

67O

676

682

676

682

682

682

682

682

682 676

676

67O

670

682

696

729

702

7O2

250

638

590

21,27O

686

42,190

Feb.

590

590 

608

62O

626

644

663

656

670

682

676

670

663

670

676

676

696

729

757

792

822

845

860

852

86O

*860

860

868

_

-

-

2O, 181

721

40,030

Mar.

868

876 

852

860

884

876

868

860

868

845

838

830

830

830

838

845

845

830

822

815

815

822

808

800

808

815

815

800

808

822

822

25,915

836

51.40O

Apr.

822

815

822

830

830

838

838

845

838

845

838

860

»860

868

884

892

940

932

932

924

924

948

948

956

964

964

*988

1.020

1,020

-

26,800

893

53,160

May

1.040

1,040 

1,04O

1,060

1,090

1,150

*1,220

1,280

1,340

1,380

1,390

1,420

1.440

1,380

J.,340

*1,320

1,330

1,320

1,290

1,270

1,230

*1,200

1,240

1,270

1,270

1,200

1,170

1,140

1,140

1,140

1,130

38,270

1,230

75,910

June

1.120

1,120 

1,140

1,180

1,220

1,260

1,280

1,280

1,290

1,290

1,290

1.300

1,290

1,290

1,290

 1,280

1,270

1,270

1,270

1,250

*1,230

1,24O

1,240

1,240

1,210

1,220

1,19O

1,180

1,180

1,200

-

37,110

1,240

73,610

July

i.iso

1,180 

al,180

al,lSO

1,1SO

1,2CO

1,210

1 it 23 0

1,230

1,220

1,210

1,150

1,150

1,150

1,210

1,210

1.2CO

1,2CO

1,160

I.IEO

i.ieo

1,140

1,1*0 i,ieo

1,1*0

1,1*0

1.14O

1,1*0

1.150

1,130

1,130

36,5*0 i.ieo

72,460

Aug.

*1.080

1.O40 

1,010

 980

956

932

9O8

900

9OO

900

900

892

876

868

868

868

876

876

868

86O

*830

822

778

757

743

736

229

764

785

757

743

26,802

865

53,16O

Sept.

729

736 

736

736

729

715

715

715

689

696

*702

702

708

715

702

708

715

702

722

722

702

*708

708

708

729

708

702

689

689

696

-

21,333

711

42,310

Calendar year 1950: Max 1,300 Mln 321 Mean 678 Ac-ft 4,90,800

Water year 1950-51: Max 1,44O Mln 475 Mean 838 Ac-ft 6O7,OOO

* Discharge measurement made on this day.

a No gage-height record; discharge estimated.
OKANOGAN RIVER BASIN 285

Osoyoos Lake near Orovllle, Wash, 

(international gaging station)

Location.--Lat 48°59 I 15", long. 119 0 27'15", In lot 1, sec. 8, T. 40 N., R. 27 E., on west 

shore, 1 mile south of International boundary and 3 miles north of Orovllle.

Drainage area. 3,250 sq ml, approximately. 

Records available. July 1928 to September 1951.

Sage. Water-stage recorder. Datum of gage Is at mean sea level, U. S. Coast and Geodetic 

Survey, datum of 1929. Prior to Sept. 2, 1928, staff gage and Sept. 2, 1?28, to Nov. 

9, 1929, water-stage recorder 100 ft south of International boundary. Nov. 10, 1929, 

to Sept. 7, 1930, staff gage at present site. All elevations prior to Oct. 1, 1944, 

at datum 2.39 ft lower. To convert from present datum to Geodetic Survey of Canada 

1934 datum, subtract 1.63 ft; to convert from present datum to 1947 Joint adjustment 

of United States Coast and Geodetic Survey and Geodetic Survey of Canada, subtract 

0.26 ft.

Extremes. Maximum elevation during year, 914.09 ft May 14,15; minimum, 911.05 ft Jan.

1928-51: Maximum elevation, 916.74 ft May 31, 1948; minimum, 908.82 ft (present 

datum) Oct. 14, 1929.

Flood of May 29, 1894, reached an elevation of 918.8 ft +0.5 ft (presert, datum), 

1 mile below present lake outlet, from floodmark, on old Okanogan Hotel Brilding, 

pointed out in 1930 by Mr. and Mrs. Stansbury who kept a diary and operated the hotel 

in 1894.

Remarks. Approximately 44,000 acres are irrigated above station in Canada, 

occasionally be affected by dam at Zosel's mill in Oroville.

Elevation may

Coc aeration. This station is one of the International gaging stations maintained by the 

Jhited States under agreement with Canada.

Elevation, In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

911.24

911.28

911.32

911.35

911.40

911.43

911.47

911.52

911.54

911.53

911.47

911.43

911.39

911.36

911.32

911.28

911.23

911.21

911.20

911.18

911.16

911.14

911.13

911.10

911.10

911.11

911.16

911.21

911.25

911.28

911.30

Nov.

911.33

911.34

911.37

91^39

911.41,

911.41

911.39

911.37

911.34

911.31

911.30

911.29

911.26

911.24

911.24

911.33

911.34

911.35

911.33

911.33

911.32

911.34

911.29

911.29

911.29

911.30

911.30

911.30

911.31

911.33

Dec.

911.33

911.31

911.32

911.31

911.28

911.29

911.29

911.29

911.28

911.29

911.31

911.31

911.32

911.24

911.35

911.38

911.41

911.43

911.45

911.49

911.51

911.52

911.54

911.56

911.57

911.59

911.60

911.61

911.62

911.63

911.64

Jan.

911.64

911.67

911.72

911.68

911.61

911.56

911.50

911.46

911.42

911.36

911.35

911.32

911.29

911.26

911.24

911.22

911.22

911.22

911.22

911.18

911.17

911.14

911.12

911.09

911 .07

911.06

.

_

_

_

-

Feb.

_

_

b911.77

-

_

_

.

_

911.35

911.33

911.. 26

911.21

911.17

911.15

911.11

911.09

911.07

911.08

911.08

911.11

911.13

911.17

911.20

911.25

911.29

911.32

911.34

_

-

liar.

911.37

911.39

911.40

911.38

911.47

911.48

911.49

911.52

911.53

911.54

911.54

911.55

911.56

911.57

911.60

911.61

911.61

911.61

911.61

911.60

911.59

911.57

911.55

911.53

911.52

911.51

911.49

911.49

911.48

911.49

911.49

Apr.

911.49

911.50

911.52

911.58

911.62

911.64

911.68

911.71

911.75

911. 7S

911.81

911.85

911.92

911.95

911.98

912.03

912.07

912.13

912 .09

912.09

912.08

912 .08

912.08

912.08

912.08

912.11

912.13

912.22

912.36

912.41

 ay

912.41

912.39

912.37

912.36

912.42

912.51

912.60

912.75

912.88

913.03

913.21

913.55

913.89

914.07

914.07

914.01

913.99

913.99

914.03

913.98

913.87

913.75

913.73

913.83

914.00

913.98

913.83

913.61

913.39

913.16

912.93

June

912.73

912.55

912.41

912.29

912.24

912.20

912.18

912.17

912.18

912.19

912.20

912.22

912.24

912.25

912.28

912.28

912.29

912.27

912.24

912.20

912.18

912.21

912.23

912.24

912.21

912.21

912.18

912.16

912.14

912.13

July

912.11

912.09

912.09

912.11

912.10

912.14

912.15

912.18

912.19

912.19

912.20

912.21

912.23

912.22

912.21

912.20

912.20

912.20

912.19

912.18

912.17

912.19

912.21

912.21

912.21

912.21

912.22

912.24

912.26

912.27

912.29

Aug.

912.29

912.27

912.27

912.23

912.18

912.13

912.07

912.02

911.98

911.94

911.90

911.86

911.84

911.84

911.87

911.87

911.87

911.88

911.88

911.87

911.88

911.91

911.89

911.88

911.88

911.87

911.85

911.93

911.97

912.02

912.05

Sept.

912 .08

912.10

912.12

912.13

912.09

912.06

911.99

911.98

911.94

911.91

911.87

911.86

911.87

911.85

911.82

911.80

911.79

911.79

911.78

911.72

911.68

911.68

911.66

911.65

911.65

911.63

911.61

911.61

911.61

911.63

-

b Possibly affected by backwater from Ice.
286 OKANOGAN RIVER BASIN

Okanogan River at Oroville, Wash.

Location. Lat 48°56', long. 119 0 51', in SW£ sec. 27, T. 40 N., R. 27 E., on left bank in 

Oroville half a mile downstream from Tonasket Creek and 1? miles downstream from Osoyoos 

Lake.

Drainage area.--3 .210 sq mi, approximately. 

Records available. October 1942 to September 1951.

Gage. Water-stage recorder. Datum of gage is 900 ft above mean sea level, datum of 1929. 

Prior to Oct. 26, 1944, staff gage at Zosel's mill dam 200 ft upstream at same datum. 

Oct. 26, 1944, to Mar. 6, 1948, water-stage recorder on railroad trestle 20 ft upstream, 

at same datum. Auxiliary water-stage recorder half a mile downstream used during highwater periods since Apr. 10, 1948. May 15, 1946, to July 8, 1947, auxiliary staff gage 

at same site read during periods of high water.

Average discharge. 9 years, 730 cfs.

Extremes.--Maximum discharge during year, 2,500 cfs May 15; maximum gage height, 13.62 ft 

May 24, 25 (backwater from Similkameen River); minimum discharge, 173 cfs Jan. 26 (gage 

height, 5.98 ft).

1942-51: Maximum discharge observed, 3,430 cfs June 2, 1948; maximum gage height, 

16.50 ft May 31, 1948 (backwater from Similkameen River); maximum daily reverse flow, 

2,270 cfs May 29, 1948.

Remarks. Records good except those for periods of no gage-height record or backwater from 

SlmTlkameen River, which are fair. Diversions in Canada for Irrigation. Natural regulation in several large lakes and artificial regulation in Okanagan Lake as an aid to 

navigation, and pondage bank of Zosel's mill dam at Oroville, 200 ft abov? station.

Discharge, In cubic feet per second, water year October 195O to September 1951

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

26

29

30

31

Total

Mean

Ao-ft

Oct.

426 

432

432

432

442

448

454

465 

538

666

697

690

674

674

658

651

635

628

621

628

621

621

614

607

 551

488

494

506

513

519

519

17,344

559

34,400

Nov.

51?

526

532

532

585

635

635 

621

621

614

614

607

607

607

628

628

628

628

628

621

651 628"

621

621

621

621

»628

635

643

-

18,204

607

36,110

Dee.

651 

635

643

643

628

628

635

635 

628

628

635

635

643

643

635

643

658

666

682

690

697

713

713

722

722

722

730

739

739

748

756

20,885

674

41,420

Jan.

748 

756

818

881

863

845

827

818 

809

8O9

800

791

783

783

783

791

809

809

*800

791

791

783

783

783

783

697

670

640

620

590

590

23,844

769

47,290

Feb.

600 

650

700

750

800

850

900

980 

1,000

1,100

1,080

1.240

1,040

920

880

870

860

850

840

830

820

820

820

820

*818

827

827

827

-

-

24,319

869

48,240

Mar.

§27 

827

336

845

854

845

845

845 

845

845

845

836

845

845

854

845

845

845

845

898

962

962

953

944

935

935

935

926

926

926

926

27,247

879

54,040

Apr.

926 

917

908

863

881

881

899

908 

926

944

962

980

1,100

*1,130

1,150

1,250

1,340

1,400

1,340

1,370

1,380

1,380

1,380

1,380

1,380

1,390

1,420

1,450

1,520

1.640

-

35,395

1,180

70,200

May

1,700 

1,710

1,710

1,660

1,640

1,590

1,590

»1,700 

1,910

*2,000

*1,870

1,660

1,870

2,250

*2.470

 2,350

2,290

1,990

2,170

2,300

*2,200

1,940

1,670

951

1,480

2,150

2,280

2,290

2,270

2,150

2,010

59,821

1,930

118,700

June

1.880 

1,740

1,650

1,530

1,460

1,430

1,400

1,400 

1,380

1,400

1,410

1,420

1,390

1,380

1,330

1,430

1,520

1,500

1,400

»1,320

1,240

1.190

1,210

1,220

1,220

1,230

1,220

1,230

1,230

1,240

-

41,600

1,387

82,510

July

1,230 

1,210

1.22C

1,24C

1,25C

1.27C

1.26C

1.30C 

1,30C'

1.30C

1.30C

1.30C

1.25C

1.25C

1.25C

1.25C

1,200

1,160

1,130

1,120

1,100

1,120

,120

,120

,120

,110

.100

,100

,100

,100

1,100

36,990

1,193

73,370

Aug.

1.100 

1,100

*1,090

1,080

1,060

1,040

1,020

998 

971

944

944

926

863

809

818

827

818

809

818

809

730

730

756

739

730

739

722

730

739

722

739

26,920

868

53,400

Sept.

765 

774

774

827

899

890

881

881 

863

872

854

 765

871

818

800

791

791

791

800

783

765

774

774

774

791

774

756

748

756

765

-

24,167

806

47,930

Calendar year 1950; Max 2,850 Mln -844 Mean 760 Ac-ft 550,500

Water year 1950-51 : Max 2,470 Mln 426 Mean 977 Ac-ft 707,600

* Discharge measurement made on this day.

Note. No gage-height record Jan. 27 to Feb. 24, July 28 to Aug. 2; discharge estimated on basis of 

weather records and records for station near Tonasket and Similkameen River near Nlg-hthawk. Backwater from Similkameen River Apr. 18-21, Apr. 27 to July 7.
OKANOOAN RIVER BASIN 287

Slmilkameen River near Nighthawk, Wash. 

(International gaging station)

Location.--Lat 48°59'10", long. 119°37'00", in NWi sec. 7, T. 40 N., R. 26 E., on left bank 

about l£ miles downstream from Nlghthawk and 12 miles upstream from mouth.

Drainage area. 3,550 sq mi, approximately.

Records available. May 1911 to September 1951 (prior to September 1928 mean monthly dlscharge included Oroville-Tonasket Irrigation District canal). Published as "near Orovllle" 1911-28.

Gage. Water-stage recorder. Datum of gage is 1,137.70 ft above mean sea level, International Joint adjustment of 1947. Prior to Sept. 11, 1928, staff gages at sites 

7 miles downstream (below Oroville-Tonasket Irrigation District canal) at various 

daturas.

Average discharge. 40 years, 2,192 cfs.

Extremes . Maximum discharge during year, 22,700 cfs May 24 (gage height, 13.71 ft); minimum, 460 cfs Jan. 30 (gage height, 3.16 ft), but may have been less durin'' period of 

ice effect Jan, 31 to Feb. 7.

1928-51: Maximum discharge, 38,700 cfs May 30, 1948 (gage height, 17.62 ft); minimum, 120 cfs Jan. 6, 1930 (gage height, 2.05 ft).

Remarks. Records good except those for periods of ice effect, which are poo". Plow at 

high stages regulated by natural diversion into and release from Palmer Lake. Several 

small diversions above station for irrigation of about 2,900 acres in the United States 

in 1946. An unknown area, estimated to be small, is irrigated in Canada.

Cooperation. This station Is one of the international gaging stations maintained by the 

united States under agreement with Canada.

Drainage area.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

3.2 

 4.0 

5.0

480

990

1,890

7.0

9.0

13.5

4,510

8,330

22,000

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ac-ft

Oct.

590 

578

560

560

572

572

578 

596

608

 731

843

*998

983

990

976

920

857

808

815

913

976

899

843

 808

787

976

955

920

920

892

25,134

811

49,850

Nov.

857 

808

787

766

1,230

1,740

1,460 

1,280

1,150

976

878

1,030

998

927

871

948

899

913

843 

152

766

822

829

801

822

1,020

1,840

 2.580

2,340

1,940

-

33,880

1,129

67,200

Dec.

1,740 

1,590

1,360

1,740

1,690

1,230

1.150 

1,320

1,320

1,230

1,590

1,940

1,840

1,640

1,500

1,500

1,500

1.410

1,360 

1,320

1,320

1,410

1,460

1,460

1,890

2.850

2,400

2,160

2,060

1,940

1,840

50,740

1,637

100,600

Jan.

1.740 

lT§90"

 1,640

1,590

1,460

1,410

1,190 

1,190

1,320

1,320

1,230

1,190

1,150

1,150

1,150

1,150

1,070

 1,060

1,010 

941

934

976

976

983

998

1,020

983

554

510

$25

bSOO

34,580

1,115

68,590

Feb.

bSOO 

b556"

bSOO

bSOO

b550

b650

bSOO 

934

976

1,020

1,360

2.580

2,340

2,160

2,060

1,940

1,940

1,890

1,840 

1,790

1,790

1,690

1,590

 1,500

1,500

1,460

1,360

1,280

_

-

-

39,000

1,393

77,360

Mar.

1.250 

1,190

1,150

1,150

1,110

962

885 

bSOO

b750

b750

b750

bSOO

b900

1,070

1,100

1,110

1,070

1,040

1,050 

1,070

1,020

1,020

1,010

969

962

948

962

941

948

955

962

30,634

988

60,760

Apr.

218 

962

1,010

1,150

1,410

1,590

1,690 

1,840

1,940

2,000

2,000

2,160

 2,830

3,770

3,910

4,210

4,830

5,680

6.040 

5,500

5,160

4,990

4,830

4,510

4,510

4,670

4,990

5,330

5,500

5,500

-

105,460

3,515

209,200

May

5,330 

 5.160

5,160

5,500

6,610

8,330

9,560 

11,200

 12,600

14,400

»16,6OO

19,500

19,900

17,500

15,600

 15,600

17,200

18 , 500

17,800 

16,200

 15,900

16,900

18,800

22.000

20,900

17,500

15,300

14,100

12,600

11,200

9,820

433,270

13,980

859,400

June

9,310 

9,060

9,310

9,820

10,300

10,600

10,600

10^900

10.60O

10,100

9,820

9,560

9,310

8,570

8,100

9,060

9,820

10,900 

 10,100

9,310

8,810

8,810

9,060

9,060

8,330

7,870

7,220

6,810

6.610

-

278,630

9,288

552,700

July

6.420 

67421;

6,230

5,860

5,500

5,500

5,680 

5,160

4,670

4,510

4,210

3,910

3,770

3,630

3,490

3,280

3,090

2,960

2,760 

2,580

2,400

2,280

2,160

2,060

1,94C

1.89C

1.79C

1.69C

1.59C

1.50C

JU46C

110, 39C

3,561

219, OOC

Aug.

1.560 

17321;

1,230

 1,190

1,150

1,110

1,070 

1,030

990

962

983

1,050

1,020

962

920

885

850

822

794 

773

745

717

698

692

680

668

650

815

962

1,110

1,280

29,488

951

58,490

Sept.

1.410 

17360

1,320

1,190

1,070

1,010

948 

920

899

913

892

 892

899

864

829

794

766

738

717 

686

668

656

656

644

632

614

620

632

 638

656

-

25,533

851

50,640

Calendar year 1950: Max 28,900 Mln 500 Mean 3,315 Ac-ft 2,400,000

Water year 1950-51: Max 22,000 Mln 495 Mean 3,279 Ac-ft 2,374,000

Peak discharge (baae. 8.000 ofaK May 24 (6 to 9 p.m.) 22,700 cfs (13.71 ft); Jure 19 (6 p.m.) 

11,400 cfa (10.18 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
288 OKANOGAN RIVER BASIN

Okanogan River near Tonasket, Wash. 

(International gaging station)

Location. Eat 48°38'00", long. 119°27'50", in lot 3, sec. 8, T. 36 N., R. 27 E., on right 

bank 1,000 ft upstream from Chewiliken Creek and 5j miles south of Tonasket.

Drainage area. 7,270 sq mi, approximately (revised).

Records available.--May 1911 to September 1925, April 1929 to September 19"! in reports of 

Geological Survey. Published as "at Okanogan" 1911-25. June 1911 to September 1933 

(monthly records only) in State Water-Supply Bulletin 5.

Gage. Water-stage recorder. Datum of gage is 860.78 ft above mean sea le^el, datum of 

T929, supplementary adjustment of 1947. Prior to Oct. 1, 1925, several staff or chain 

gages at Okanogan at different datum. Apr. 17 to May 20, 1929, staff gige at same site 

and datum.

Average discharge. 36 years (1911-25, 1929-51), 2,849 cfs.

Extremes. Maximum discharge during year, 23.600 cfs May 25 (gage height, 16.77 ft); minimum, 895 cfs Oct. 4 (gage height, 5.28 ft).

1911-25, 1929-51: Maximum discharge, 40,900 cfs May 31, 1948 (gage height, 21.79 ft, 

from floodmark); minimum recorded, 126 cfs Sept. 5, 1931 (gage height, 3.43 ft).

Remarks. Records excellent except those for periods of shifting control, which are good, 

and those for periods of ice effect or no gage-height record, which are poor. Diversions above station for irrigation of about 10,700 acres in the United States and 45,580 

acres in Canada. Flow subject to natural regulation by several lakes and to some artifical 

regulation by Okanagan Lake for storage and as an aid to navigation. Some diurnal 

fluctuation at low flow caused by powerplant on Similkameen River.

Cooperation. This station is one of the international gaging stations maintained by the 

United States under agreement with Canada.

Revisions (water years). W 862; 1937.

Rating table, water year 195O-51, except periods of ice effect 

or shifting control (gage height, in feet, and discharge, 

in cubic feet per second)

5.4

6.0 

7.0 

8.0

950

1,350

2,330

3,590

10.0

13.0

16.7

6,910

13,200

23,300

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22 

23

24

25

26

27 

28 

29

30

31

Total

Mean

Ac-ft

Oct.

980 

980 

980 

980 

980

1,010

1,040

1,070

1,070

1,200

*1,430

1,610

1.750

1,700

1,660

1,660

1,610

1,560

1,520 

1,480

1,480

1,560 

*1,610

1,520

1,520

1,390

1,390 

1,560 

1,560

1,520

1,520

42 , 900

1,384

85,090

Nov.

1,480 

1,480 

1,430 

1.590 

1,430

2,000

2,330

2,110

2,000

1,850

1,660

1,610

1,750

1,700

1,660

1,700

1,750

1,660

1,660 

1,610

1,560

1,520 

1,610

1,560

1,560

1,560

*1,900 

2,860 

5.160

2,800

-

54,370

1,812

107,800

Dec.

2,560 

2,330 

2,160 

2,060 

bl,900

bl.800

1,800

1,950

2,110

2,060

2,000

2,500

2,620

2,500

2,330

2,220

2,280

2,220

2,160 

2,160

2,110

2,160 

2,220

2,280

2,280

3,120

5.310 

3,050 

2,860

2,800

2,680

72,590

2,342

144,000

Jan.

2.620 

2,560 

2,560 

*2,560 

2,500

2,330

2,220

2,110

2,110

2,220

2,160

2,110

2,110

2,060

2,110

2,060

*2,000

1,950

1,900 

1,850

1,800

1,800 

1,800

1,800

1,800

1,800

bl,700 

1,400 

1,200

1.150

1,150

61,500

1,984

122,000

Feb.

1.200 

1,250 

1,400 

1,600 

bl,800

bl,900

b2,000

2,060

2,060

2,220

2,220

2,740

5.750

3,310

3,120

2,920

2,920

2,860

2,860 

2,860

2,680

2,620 

2,500

*2,440

2,380

2,380

2,330 

2,280

_

-

66,640

2,380

132,200

Mar.

2.220 

2,160 

2,110 

2,110 

b2,050

b2,000

bl,900

1,800

1,650

1.600

1,600

1,700

1,850

2,000

2,100

2,150

2,200

2,200

2,200 

2,150

2,100

2,100 

2,100

2,100

2,100

2,100

2,100 

2,100 

2,100

2,100

2,100

62,850

2,027

124,700

Apr.

2.060 

2,060 

2,060 

2,110 

2,330

2,500

2,680

2,740

2,860

2,920

2,980

3,050

*3,380

4,180

4,810

5,140

5,650

6,540

7.100 

6,910

6,720

6,360 

6,180

5,820

5,820

5,820

6,180 

6,720 

6,910

6,910

-

137,500

4,583

272,700

May

7,100 

*6,910 

6.540 

6,910 

7,480

9,050

11,000

12,500

13,700

*14,400

16,000

*18,000

20,600

20,900

19,100

*18,000

18,200

19,700

20,300 

19,400

*18,500

18,200 

19,100

21,200

25.300

21,800

18,800 

17,200 

16,000

14,200

12 , 800

486,890

15,710

965,100

June

11,400 

11,000 

11,000 

*11,200 

11,600

11,800

11,800

12,300

12,300

12,500

12,800

13,200

13,400

13,700

14,200

15.000

15,000

14,000

12,800 

11,800

*11,000

10,100 

9,880

10,100

10,300

9,670

9,250 

8,850 

8,050

7.860

-

347,860

11,600

690,000

July

7.670 

7,480 

7,290 

7,100 

6,720

6,360

6,910

6,540

5,820

5,480

5,310

5,140

4,810

4,650

4,490

4,330

4,180

3,880

3,730

3,590

3,380

3 , 18(0 

3,050

2 , 980

2,920

2,800

2,740 

2,620 

2 , 500

2,440

2,380

142,470

4,593

282, 600

Aug.

.550 

,280 

,160 

,160 

,060

,850

* ,950

,900

,850

,800

,800

,800

,850

,750

,660

,610

,560

,520

,480 

,480

,430

.510 

,350

,350

,310

,310

,310 

,430 

,660

,800

,850

52,960

1,708

105,000

Sept.

2,110 

2.160 

2,110 

2,110 

2,060

1,950

1,850

1,800

1,750

1,750

1,750

1,700

*1,610

1,700

1,660

1,610

1,560

1,520

1,520

1,480

1,430

1,430 

1,430

1,390

1,390

1,390

1,390 

1.350 

1,390

*1,430

-

49,780

1,659

98,740

Calendar year 1950 : Max 29,200 Mln 815 Mean 4,202 Ac-ft 3,043,000

Water year 1950-51 : Max 23,300 Mln 980 Mean 4,324 Ao-ft 3,131,000

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. No gage-height record Jan. 28 to Feb. 4, Mar. 8-12, 14-31; discharge estimated on basis of 

records for Similkameen River near Nighthawk. ShiftIng-control method used Aug. 9 to Sept. 30
MKTHOW RIVER BASIN 289

Methow River at Twlsp, Wash.

Location. Lat 48°21'40", long. 120°06'50", in NW£ sec. 17, T. 33 N., R. 22 E., on left

 bank a quarter of a mile downstream from Twisp River and 0.3 mile east of center 01 

Twisp.

Drainage area. 1,330 sq mi, approximately.

Records available. June 1919 to September 1929, October 1933 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,580 ft (from topographic map). Prior 

~^ffo Oct 3, 1919, several staff gages in the immediate vicinity at different datum. Oct.

3, 1919, to Nov. 6, 1933, chain gage 40 ft upstream at same datum as staff gages. Nov.

7 to Dec. 18, 1933, staff gage at present site at different datum.

Average discharge. 28 years, 1,280 cfs.

Extremes. Maximum discharge during year, 17,600 cfs May 12 (gage height, 8.46 ft); minimum,

 275 cfs Oct. 1, but may have been less during period of ice effect.

1919-29, 1933-51: Maximum discharge, 40,800 cfs May 29, 1948 (gage height, 12 94 

ft) from rating curve extended above 18,000 cfs on basis of slope-area determination of 

peak flow; minimum observed, 134 cfs Sept. 4, 5, 1926, Sept. 9, 10, 1929, but may have 

been less during period of ice effect Jan. 6 to Mar. 4, 1937.

Remarks.--Records good except those for periods of shifting control, which are fair, and

 EEo"s"e for periods of ice effect or no gage-height record, which are poor. A large part 

of the flow diverted above station for irrigation by two canals of Methow Valley Irrigation District, by Risley ditch, and by many other smaller ditches. It is estimated 

7,410 acres were irrigated in 1946 by water diverted above this station.

Rating tables, water year 195O-51, except periods of loe effect or shifting control (gage 

height, in feet, and discharge, in cubic feet per second) 

Oct. 1 to May 11 May 12 to Sept. 30

2.4 

2.-7

5.0 

4.0 

6.0 

8.0

230

530

920

2,700

8,100

15,600

2.1 

2.5

3.0 

4.0 

6.0 

8.0

315

690

1,360

3,160

8,220

15,600

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

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 

50

31

Total

Mean

Ac-ft

Oct.

311

400

400

390

410

442

442

453

475

554

542 

508

508

530

578

602

602

590

578

578

578

566

*542

530

554

590

650

626

614 

578

554

16,275

525

32,280

Nov.

578

566

542

590

663

702

702

67£

626

614

638 

626

590

590

590

626

614

590

542

566

566

590

554

566

*590

620

660

710

680 

600

-

18,367

612

36,430

Dec.

560

550

560

600

560

490

490

510

510

530

600 

680

620

560

540

530

520

510

508

510

510

510

508

510

540

580

620

610

610 

600

600

17,136

553

33,990

Jan.

590

580

580

578

530

497

519

519

519

566

566 

566

554

554

566

*508

*497

475

486

464

486

475

453

464

475

497

400

320

b310 

b310

b330

15,234

491

30,220

Feb.

b380

b450

b520

b550

566

566

566

554

566

794

1,090 

1.150

1,100

1,060

1,020

965

935

935

864

836

822

794

*767

741

715

689

676

676

-

-

21,347

762

42,340

Mar.

663

614

626

650

602

590

578

578

578

554

530 

566

554

542

554

542

519

508

519

542

578

590

602

614

638

676

715

754

822 

836

850

19,084

616

37,850

Apr.

892

950

1,130

1,340

1,720

2,000

2,340

2,640

2,810

2,830

2,880 

*3,380

4,380

5,480

5,480

5,620

6,180

6.600

5,900

5,200

4,510

4,120

3,740

3,500

3,500

3,740

3,990

4,120

4,120 

3,860

-

108,952

3,632

216,100

May

3,740

5.500

3,620

3,990

5,760

7,200

9,000

11,200

11,200

12,800

15.600 

15,600

11,600

9,700

9,100

10,000

*1 1,600

11,600

10,400

10,000

10,000

*12,000

15,200

13,200

10,400

8,800

8,200

*7,640

6,940 

5,980

5,340

290,930

9,385

577,100

June

5,080

5,080

5,460

6,250

6,380

6,380

6,250

5,980

6,250

6,800

7,360 

8,220

8,800

8,800

10.000

9,100

8,220

8,220

7,080

*6,250

5,720

5,590

5,590

5,980

5,850

5,720

5,340

4,960

4,720 

4,720

-

196,150

6,538

389,100

July Aug.

4.840 966

4,840 901

4,720 875

4,480 849

4,020 *836

3,800 798

3,260 762

2,960 738

2,960 702

2,960 726

2,760 786 

2,570 810

2,570 786

2,570 738

2,380 714

2,250 646

2,090 580

1,970 530

1,800 510

1,630 500

1,540 471

1,470 444

1,410 426

1,340 426

1,320 417

1,270 399

1,180 417

1,140 580

1,080 786 

1,040 810

1.000 774

75,220 20,703

2,426 668

149,200 41,060

Sept.

738

726

714

679

624

591

580

602

580

550

540 

520

510

490

*462

444

417

408

390

382

382

382

382

375

368

360

360

390

417 

435

-

14,798

493

29,350

Calendar year 1950 : Max 18,800 Mln 166 Mean 2,052 Ac-ft 1,485,000

Water year 1950-51 : Max 15,600 Mln 310 Mean 2,231 Ac-ft 1,615,000

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note. Shifting-control method used Dec. 19 to Feb. 17. No gage-height record Nov. 26 to Dec. 18, 

De ;c. 20-22, ~

records.

Dec. 24 to Jan. 3; discharge estimated on basis of records for nearby stations and weather
290 CHELAN RIVER BASIN

Stehekin River at Stehekin, Wash.

Location (revised). Lat 48°19'30", long. 120°41'20", in SEi sec. 26, T. 33 N., R. 17 

E., on left bank 1,200 ft upstream from Boulder Creek, if miles upstrea-n from Lake 

Chelan, and 2 miles northwest of Stehekin.

Drainage area. 372 sq mi, includes that of Boulder Creek.

Records available. October 1910 to October 1915, January 1927 to Septembe" 1951 (includes 

flow of Boulder Creek).

Gage. Water-stage recorder. Datum of gage is 1,100 ft above mean sea level (unadjusted). 

Prior to Aug. 16, 1911, staff gage three-eighths of a mile upstream from mouth, at 

different daturas (datum change made June 13, 1911). Aug. 17, 1911, to Oct. 31, 1915, 

staff gage a quarter of a mile downstream from Boulder Creek at different datum.

Average discharge. 29 years, 1,358 cfs.

Extremes. Maximum discharge during year, 12,700 cfs May 11 (gage height, 26.89 ft); 

minimum, 325 cfs Mar. 12 (gage height, 19.06 ft).

1910-15, 1927-51: Maximum discharge, 18,900 cfs May 29, 1948 (gage height, 29.00 

ft), from rating curve extended above 9,000 cfs on basis of slope-area determination 

of peak flow; minimum, 56 cfs Jan. 21, 1930.

Remarks. Records good except those for period of ice effect, which are fair. At very 

high stages small part of flow is diverted above gage by natural slough?; flow diverted included in daily discharge. No regulation.

Cooperation. Gage-height record collected in cooperation with, and six discharge 

measurements furnished by Washington Water Power Co.

Revisions (water years). W 412: 1914.

Rating table, Mater year 195O-51, except period of ice effect (gage 

height. In feet, and discharge, In cubic feet per second) 

(Shifting-control method used June 15 to Sept. 30)

19.1

19.5

20.0

21.0

22.0

24.0

26.2

340

520

8OO

1,550

2,560

5,560

10,800

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1?

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

438 

398 

372

368

435

43O

638

1.26O

930

1,300

1,140

1,300

1,500

1.640

1,306

1,070

916

881

930

1,O40

888

8OO

746

704

965

*916

93O

930

848

794

740

27,550

889

2.39

2.75

54,640

Nov.

746 

698 

 848

1,220

1.420

1,180

1,O7O

965

848

812

782

736

686

656

638

638

6OO

560

525

535

530

540

530

575

788

1,340

1,420

1,260

1,100

1,070

-

25,316

844

2.27

2.53

50,210

Dec.

965 

881 

836

782

752

740

698

650

65O

842

854

818

776

746

734

698

674

644

644

680

764

788

1,000

1,820

2.560

1,920

1,640

1,460

1,340

1,220

1,140

30,716

991

2.66

3.07

60,920

Jan.

1.070 

1,676 

1,OOO

930

*86O

818

782

740

710

680

656

620

626

610

580

580

540

570

555

535

525

510

475

466

555

605

b470

b430

b400

b390 b3"§0"

19,748

637

1.71

1.97

39,170

Feb.

b400 

b4l5 

b43O

b440

448

425

416

420

560

1,970

2.660

2,076

1,640

1,420

1,300

*1,140

1,070

1,000

923

867

812

770

740

704

668

638

605

585

-

-

25,551

913

2.45

2.55

50,680

Mar.

53O

530

500

480

b460

b430

b410

b4OO

b390

398

398

394

407

38O

368

36O

360

364

380

384

384

389

402

430

448

452

461

452

466

13,317

430

1.16

1.33

26,410

Apr.

495 

575 

722

*93O

1,180

1,3OO

1,46O

1,550

1,550

1,550

*1,600

1,870

2,450

2, BOO

2,740

2,800

3,12O

5.160

2,746

2,400

2,120

1,920

1,820

1,780

1,870

2,O20

2,120

2,180

2,120

2.O2O

-

56,977

1,899

5.10

5.70

113,000

May

1,920 

l t 820 

1,870

2,23O

2,98O

3,590

4,840

5,020

5,200

6,190

10.800

7,776

5,020

4,030

4,030

4,500

5,780

5,390

*4,840

4,840

5,200

6,400

8,490

6,620

5,020

4,180

3,880

3,660

3,240

2,920

2,740

145,O1O

4,678

12.6

14.50

287,600

June

2.660 

3,180 

3,660

4,180

4,180

4,180

3,680

3,800

4,030

4,34O

4,670

5,020

5,390

*6,190

7.530

6,620

5,780

5,39O

5,200

4,840

4,670

4,670

4,84O

4,670

4,840

5,020

5,020

4,840

4,67O

5,020

-

143,180

4,773

12.8

14.31

284,000

July

'57075' s.oao

5,030

4,6*0

4,180

3,45O

3,120

3,180

3,590

3,80O

3., 660

3,660

3,880

4,030

3, SCO

3,660

3,7?0

3,6fO 3,ieo

2,74O

2,ee'>

2,6£0

2,8fo

2,9?0

2, SCO

8,560

2,450

2,400

2,340

2,071

1.B70

104,850

3,38? 9.01

10.43

208,00-)

Aug.

1.620 

1,780 

1,680

1,680

1,640

1,500

1,460

1,500

*1,600

1,680

1,640

1,460

1,260

1,220

1,220

1,220

1,140

1,070

1,100

1,180

1,260

1,220

1,070

965

874

854

854

902

824

888

762

39,343

1,269

3.41

3.93

78,040

Sept.

752 

746 

734

728

722

734

888

1,420

1,000

930

824

716

692

698

692

696

728

752

710

638

585

560

54O

540

794

585

535

764

1.460

22,680

756

2.03

2.27

44,990

Calendar year 1950: Max 13,500 Hln 25O Mean 1,950 Cfsm 5.24 In. 71.16 Ac-ft 1,412,000

Water year 1950-51: Max 10,800 Min 360 Mean 1,792 Cfsm 4.82 In. 65.39 Ac-ft 1,298,000

Peak discharge (base. 5.000 cfs). May 11 (3:30 p.m.) 12.700 ofs (26.89 ft)> May 23 (8:30 a.m.) 

3,990 Cfs (25.51 ft); June 15 (1 a.m.) 8,250 efs (25.12 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
CHELAN RIVER BASIN 291

Railroad Creek at Lucerne, Wash.

i.~Lat 48°11'45" (revised), long. 120°35'50", In sec. 9, T. 31 N., R. If E., on 

.nk half a mile upstream from mouth and half a mile southwest of Lucerre.

Drainage area. 64.8 sq ml (revised).

Records available. December 1910 to June 1913, January 1927 to September 1951.

Sage. Water-stage recorder. Altitude of gage Is 1,250 ft (from topographic map). Prior 

to June 30, 1913, staff gage at site 1,800 ft downstream at different datum.

Average discharge. 25 years (1911-12, 1927-51), 196 cfs.

Extremes. Maximum discharge during year, 2.440 cfs May 11 (gage height, 5.42 ft); minimum, 47 cfs Oct. 4 (gage height, 2.26 ft).

1910-13, 1927-51: Maximum discharge, 3,900 ofs May 28, 1948 (gage height, 8.1 ft, 

from floodmarks), from rating curve extended above 1,300 cfs on basis of slops-area 

and contracted-opening determinations of peak flow; minimum, less than 9.4 cfs sometime during period of loe effect Jan. 15-25, 1930.

Remarks. Records fair except those for periods of doubtful or no gage-height record, 

which are poor. No diversion or regulation.

Cooperation. Gage-height record collected In cooperation with, and five discharge measurements furnished by Washington Water Power Co.

Revisions (water years). W 1042; 1944. W 1122: 1936.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 26 to Jan. 4)

2.1 

2.4 

2.7 

3.1

32

96

177

330

3.5 

4.0 

5.0

575

1,020

2,000

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27 

28

29

30

31

Tbta:

Mean

Cf sm

In.

Ac-ft

Oct.

62 

55

49

55 

62

60

106

217

165

200

153

217

242

a260

aT55

aieo

also

a!40 

also

a!70

a 140

al30

a!20

alio

al50

*162

165 

156

139

125

115

4,373

141

2.18

2.51

8,670

Nov.

118 

*110

136

220 

214

168

147

12S

113

108

106

103

98

96

98

101

98

101 

P?6

96

96

96

115

159

238

«

187

171

-

4,087

136

2.10

2.35

8,110

Dec.

150 

136

125

120 

110

113

115

113

110

134

153

139

125

115

110

106

98

91 

89

£7

98

96

108

156

290

23S

200 

184

168

156

144

4,177

135

2.08

2.40

8,280

Jan.

136 

142

134

*118 

110

105

100

98

96

95

95

95

94

94

*94

94

93

92 

90

88

86

82

76

82

92

99

80 

71

67

65.

65

2,928

94.5

1.46

1.68

5,810

Feb.

||

71

72 

72

70

70

75

100

190

290

240

210

190

170

160

150

14O 

130

120

115

110

105

100

98

95

90

86

-

-

-

3,453

123

1.90

1.98

6,850

Mar.

ft

73

76 

75

70

67

64

61

60

59

59

59

59

59

58

57

||

56

57

57

58

60

63

65

67 

68

69

70

75

2,002

64.6

0.997

1.15

3,970

Apr.

80 

55

*94

125 

159

180

207

224

231

234

*249

294

396

454

468

494

560

575 

522

461

418

391

365

355

365

391

396 

4O8

408

380

-

9,969

332

5.12

5.72

19,770

May

360

1555

418 

515

643

948

966

1,020

1,170

1.95O

1,260

8S5

750

723

786

903

921 

*831

786

813

921

1,300

1,110

912

813

723 

652

552

508

*480

25,334

817

12.6

14.54

50,250

June

W575

687 

705

637

634

592

631

687

768

876

*939

1,020

1.260

1,190

1,030

957 

930

858

795

777

804

813

804

840

894 

849

813

831

24,223

807

12.5

13.90

48.05O

July

835 

849

858

m

660

515

454

515

592

618

584

600

660

678

643

609

592 

634

552

448

402

386

418

448

424

386 

365

345

340

330

17,497

564

8.70

10.04

34,700

Ai'R.

m29O

281 

265

265

265

*249

249

265

273

245

220

207

203

203

190

177 

177

187

200

207

190

177

162

153

m168

184

162

6,755

218

3.36

3.88

IT, 400

Sept.

139 

128

123

120 

120

118

139

190

Tf§

144

134

115

108

106

108

*110

113

115 

118

115

113

103

101

96

94

98

115 

101

94

96

3,542

118

1.82

2.03

7.030

Calendar year 1950: Max 1,800 Hln 37 Mean 268 Cfsm 4.14 In. 56.73 Ac-ft 193,900

Water year 1950-51: Max 1.95O Mln 49 Mean 297 Cfsm 4.58 In. 62.18 Ac-ft 214,900

* Discharge measurement made on this day.

a No gage-height record) discharge estimated on basis of records for Stehelcln River at Stehelcln. 

Note. Doubtful gage-height record Jan. 5 to Apr. 2] discharge estimated on basis of 1 discharge 

leasurement and records for Stehelcln River at Stehekln.
292 CHELAN RIVER BASIN

Lake Chelan at Chelan, Wash.

Location. Lat 47°50'00", long. 120°03'40", In lot 3, sec. 15, T. 27 N. , R. 22 E. , on 

south shore 2 miles west of Chelan.

Drainage area. 952 sq ml (revised).

Records available. September 1897 to December 1899, January to June 1905, December 1910 

to September 1951.

Sage. Water-stage recorder. Datum of gage Is at mean sea level, adjustment of 1912. Prior 

to Dec. 31, 1899, staff gage at Lakeside about 1 mile west of Chelan at datum 1,070.18 

ft above mean sea level, adjustment of 1912. Jan. 1 to June 30, 1905, staff gage at 

upper highway bridge at Chelan at different datum. Dec. 5, 1910, to Nov. 13, 1927, 

staff gage at Forest Service boat landing at Chelan at datum 1,076.15 ft above mean 

sea level, adjustment of 1912.

Extremes.--Maximum elevation during year, 1,100.00 ft July 29; minimum, 1,091.54 ft

1897-99, 1905, 1910-51: Maximum elevation, 1,100.05 ft July 19, 1947; minimum, 

1,076.78 ft Jan. 27, 28, Dec. 2, 3, 1898.

Remarks. Reservoir is formed by low concrete dam at lake outlet completed Sept. 3, 1927. 

Capacity, 676,100 acre-ft between elevations 1,079 and 1,100 ft. Regulation between 

these elevations is allowed by stipulation of Federal Power Commission. Water is used 

for power development. Elevation of lake maintained between 1,092 and 1,100 ft during 

period Aug. 16 to Sept. 15 for scenic effect and recreational purposes. In 1946, an 

estimated 6,280 acres were irrigated above station with an estimated annual depletion 

of about 11,000 acre-ft.

Cooperation. Gage-height record collected in cooperation with Washington Water Power Co.

Capacity table, water year 1950-51 (elevation, in feet, capacity in acre-feet)

1.093

1.094

447,400

480,000

1.095

1.096

512,600

545,200

1.097

1.098

577,800

610,500

1.099

1.100

643,300

676,100

Elevation, in feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

98.68

98.56

98.44

98.35

98.28

98.20

98.12

98.06

98.02

98 .04

98.03

98.10

98.22

98.34

98.44

98.48

98.51

98.63

98.68

98.74

98.81

98.86

98.91

98.95

99.03

99.12

99.23

99.30

99.37

99.41

99.39

Nov.

99.39

99.35

99.31

99.33

99.40

99.47

99.40

99.37

99.31

99.25

99.24

99.30

99.30

99.24

99.20

99.21

99.18

99.14

99.16

99.20

99.19

99.20

99.15

99.17

99.25

99.37

99.50

99.53

99.57

99.60

-

Dec.

99.58

99.52

99.51

99.47

99.43

99.42

99.42

99.38

99.36

99.39

99.40

99.40

99.40

99.39

99.40

99.40

99.42

99.42

99.43

99.44

99.43

99.43

99.45

99.52

99.70

99.79

99.80

99.69

99.54

99.50

99.43

Jan.

99.38

99.39

99.36

99.27

99.24

99.21

99.20

99.16

99.08

99.02

98.96

98.92

98.91

98.93

98.94

98.93

98.96

98.91

98.88

98.85

98.39

98.86

98.82

98.80

98.78

98.73

98.68

98.61

98.55

98.47

98.38

Feb.

98.33

98.33

98.31

98.28

98.25

98.25

98.20

98. -04

97.96

97.81

97.64

97.51

97.32

97.10

96.90

96.65

96.43

96.20

95.99

95.81

95.57

95.36

95.16

94.96

94.79

94.61

94.42

94.23

_

-

Mar.

94.05

93.88

93.68

93.51

93.34

93.27

93.20

93.13

93.04

92.96

92.87

92.82

92.74

92.66

92.64

92.60

92.50

92.40

92.30

92.20

92.10

92.00

91.88

91.80

91.78

91.75

91.69

91.67

91.68

91.65

91.63

Apr.

91.60

91.58

91.58

91.61

91.64

91.70

91.78

91.82

91.82

91.88

91.93

91.98

92.05

92.21

92.36

92.51

92.64

92.78

92.88

92.94

93.05

93.09

93.10

93.11

93.12

93.14

93.15

93.18

93.20

93.18

May

93.11

93.04

93.04

93.08

93.20

93.40

93.68

93.99

94.31

94.71

95.40

96.00

96.20

96.15

96.06

96.05

96.13

96.23

96.27

96.30

96.33

96.42

96.67

96.90

96.96

96.90

96.83

96.75

96.59

96.50

96.40

June

96.42

96.50

96.58

96.77

96.97

97.29

97.60

97.85

98.13

98.43

98.78

99.08

99.26

99.51

99.68

99.66

99.61

99.46

99.31

99.28

99.29

99.31

99.44

99.51

99.63

99.69

99.70

99.68

99.67

99.66

July

99.69

99.71

99.74

99.77

99.75

99.71

99.61

99.54

99.53

99.54

99.65

99.77

99.82

99.82

99.78

99.78

99.78

99.81

99.79

99.71

99.71

99.75

99.82

99.92

99.96

99.92

99.93

99.97

99.95

99.90

99.90

Aug.

99.92

99.92

99.93

99.93

99.91

99.90

99.88

99.84

99.82

99.81

99.84

99.84

99.77

99.71

99.74

99.78

99.79

99.76

99.74

99.77

99.78

99.80

99.79

99.72

99.70

99.69

99.67

99.67

99.68

99.66

99.65

Sept.

99.60

99.64

99.65

99.66

99.62

99.60

99.59

99.59

99.57

99.58

99.47

99.37

99.28

99.19

99.10

99.02

98.92

98.87

98.80

98.70

98.59

98.48

98.38

98.30

98.22

98.07

97.97

97.93

97.87

97.88

-

Note. Add 1,000 ft to obtain elevation above mean sea level.

Monthly elevation and contents, water year October 1950 to Septembe- 1951

Date

Sept. 30..... ...........

Dec. 31. ...............

Calendar year 1950...

Feb. 28... .............

Mar . 31 ................

June 30 ................

Sept. 30... .............

Water year 1950-51...

Elevation 

(feet)t

-

,097.90

-

Contents 

(acre-feet)

-

607,240

-

Change in contents 

during month 

(acre-fee*;)

+152,700

-54,450

-25,910

t Elevations are 12 p. 

and at Chelan.

means based on records for stations at Stehekln
CHELAN RIVER BASIN 293

Chelan River at Chelan, Wash.

Location. Lat 47°50'05", long. 120°00'40", in SE£ sec. 13 (revised), T. 27 N., R. 22 E.,

In forebay upstream from control dam at Chelan. 

Drainage area. 951 sq mi (revised). 

Records available. October 1903 to September 1951.

gage Water-stage recorder. Datum of gage is at mean sea level, adjustment of 191<J. Prior 

o Jan 7, 1927, staff gage at site 800 ft downstream at same datum. Jan. 7 to Sept. 30,

1927, staff gage about 500 to 1,000 ft below dam at same datum. Oct. 1, 1927, to Nov.

10, 1928, staff gage, and Nov. 11, 1928, to Mar. 20, 1939, water-stage recorier at sites

2j'miles downstream at same datum. 

Average discharge. 48 years, 2,029 cfs (adjusted for storage). 

Extremes.--Maximum daily discharge during year, 10,400 cfa June 16; minimum daily, 55 cfs

1903-51: Maximum daily discharge, 16,000 cfs May 30, 1948; no flow part of day Jan. 

30, 1917, when lake outlet was blocked with ice, and at other times owing to artificial

Remarks. Unmeasured water that Is diverted for irrigation above station is small percentage

 oTTotal runoff. Washington Water Power Co. diverts water at Chelan to develop an average of about 54,000 horsepower and to irrigate an unknown area near Chelan wMch quantity 

Is included In records of dally discharge. An estimated 6,280 acres were irrigated from 

the Chelan River basin in 1946. resulting in an estimated depletion of 11,000 acre-ft. 

Flow regulated by Lake Chelan (see preceding page).

Cooperation.--Records of water uaed for power and Irrigation furnished by Washington Water 

Power t;o.

Revisions (water years). W 482: 1904-13. W 612: 1924.

Discharge, in cubic feet per second, water year October 1950 to September

Day

l 

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

Ac-ft

(t)

Oct.

2,150 

2,170 

2.180 

2,170 

2,160

2,170 

1,940

2,170

2,170

2,170

777

82

101

62

55

1,160

568

118

109

90

56

56

244

207

154

185

1,060

258 

56

1,280

1,590

29,518

952

58,550

+21,520

Nov.

1,590 

1,480 

1,450 

1,290 

388

1,500 

1,870

1,560

2.100

1,810

102

67

1,520

1,660

1,830

1,6OO

1,610

405

88

1,510

1,740

1,680

1,280

1,450

490

56

1,5"65

1,540

1,410

1,580

57,596

1,253

74,570

+8,860

Dec.

2,190 

2,020 

1,160 

2,190 

1,670

1,430 

1,550

2,090

1,300

527

1,380

1,450

1,420

1,400

1,580

1,540

788

1,580

1,580

1,450

1,550

1,590

1,250

784

1,210

1,790

5,420

5.790 

5,410

5,100

2,550

55,479

1,725

106,100

-6,560

Jan.

2,060 

2.670 

2,660 

2,080 

1,750

1,670 

1,160

2,140

2,190

2,220

2,090

1,440

1,500

954

1,440

1,460

1,440

1,470

1,410

1,450

877

1,475

1,460

1,580

1,560

1,440

1,600

1,820 

1,750

1,810

1,880

52,061

1,679

103,300

-34,440

Feb.

2,200 

2,060 

1,550 

1,230 

804

871 

3,110

5,920

4,860

6.710

6,540

6,480

6,510

6,150

5,800

5,640

5,440

5,400

5,060

5,110

4,970

4,720

4,600

4,600

4,520

4,040

4,150

5,990

_

-

120,655

4,308

239,300

- 158,140

Mar.

5.840 

5,570 

5,750 

5,660 

2,690

2,290 

2,210

2,250

2,200

2,190

2,170

2,140

1,820

2,120

2,080

2,O80

2,060

2,190

2,760

2,750

2,710

2,690

2,030

1,670

1,680

1,590

1,540

1.040 

1,260

1,640

1,620

70,050

2,260

158,900

+48,900

Apr.

1,770 

1,590 

1,570 

1.550 

1,790

1,810 

2,070

2,500

2,580

2,410

2,560

2,410

2,410

2,560

2,6OO

2,700

2,760

2,890

5,240

3,500

5,070

5,120

5,110

3,110

3,110

5,100

3,130

3,860 

5,760

5_,900

-

79,720

2,657

158,100

-85,460

May

5,560 

5,140 

2,850 

2,840 

2,810

2.470 

5,000

5,070

5,150

5,540

4,140

6,560

8,780

9.090

8,580

8,060

8,120

8,140

8,120

7,550

8,180

8,400

8,780

8,970

9,090

8,880

8,570

8,650 

7,400

6,520

5,150

195,140

6,295

587,100

+107,910

June

4,050 

4,150 

4,040 

4,140 

5,250

2,090

2,160

2,150

2,070

1.950

2,280

4,590

5,540

6,250

9,280

10.400

10,500

10,200

8,960

6,720

6,700

6,050

5,580

5,000

5,650

6,470

6,910

6,920 

6,920

6,820

-

167,290

5,576

331,800

+ 107,430

July

6,950 

6,950 

6.960 

6,690 

6,350

5,920 

5,620

5,2OO

4,100

5,450

2,790

5,520

4,970

5,740

5,420

5,000

5,OOO

5,020

5,000

5,620

2,570

2,400

2,250

2,500

5,510

2,890

2,410

2,660 

5,690

2,540

2.210

155,440

4,505

264,700

+5,900

Aig.

2,200

m2,190 

2,190

2,190 

2,190

2,210

2,200

2,180

2,090

1,880

1,860

1,950

798

949

1,550

1,550

284

1,115

1,570

1,570

1,550

1,460

1,270

714

1,450

1,280 

1,560

1,570

1,570

51,185

1,651

101,500

-9,180

Sept.

694 

277 "S7S" 

1,180 

1,270

1,570 

1,600

1,600

1,550

1,700

2,140

2,150

2,150

2,160

2,160

2.180

27T55

2,160

2,150

2,140

2,150

2,150

2,160

2,140

2,140

2,130

2,120

1,700 

1,630

554

-

51,875

1,729

102,900

-54,450

Adjusted for change In Lake Chelan contents

Ac-ft

1,299

1.37

1.57

79,870

1,402

1.47

1.64

83,450

1,619

1.70

1.96

99,540

1,120

1.18

1.56

68,860

1,822

1.92

2.00

101,200

3,054

5.21

5.70

187,800

1,254

1.52

1.47

74,640

8,050

8.46

9.76

495,000

7,581

7.76

8.66

439,200

4,401

4.65

5.54

270,600

1,501

1.58

1.82

92,520

814

0.856

0.96

48,450

Calendar year 1950; 

Water year 1950-51:

Max

Max

14 

10

,100 

,400

Min 

Min

51 

55

Mean 

Mean

2 

2

,588 

,855

Ac-ft 

Ac-ft

1,874 

2,067

,000 

,000

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

2 

2

,800 

,819

Cfsm 

Cfsm

2.94 

2.96

In. 

In.

59

40

.95 

.24

Ac-ft 

Ac-ft

2,027 

2,041

,OOO 

,000

t Change in contents in Lake Chelan, in acre-feet, furnished by Washington Water Power Co. 

Note. Discharges are combined flow of power conduit, irrigation diversion below dam and waste 

'ater.
294 ENTIAT RIVER BASIN

Entlat River at Entiat, Wash.

Location. Lat 47°39'40", long. 120°13'30", In SE^ sec. 17, T. 25 N., R. 21 E., on right 

bank at Entlat and a quarter of a mile upstream from mouth.

Drainage area. 419 sq ml.

Records available. October 1910 to September 1925, June to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 690 ft (from topographic map). Prior 

~^To Sept. 30, 1925, staff gage at site three-quarters of a mile upstream at different 

datum.

Average discharge. 15 years, 491 cfs (unadjusted).

Extremes. Maximum discharge during period, 3,460 cfs June 14 (gage height, 5.42 ft), 

caused by failure of earth dike at mlllpond, 10 miles upstream; minimum, 127 cfs Sept. 

24 (gage height, 1.70 ft).

1910-25, 1951: Maximum discharge observed, 5,150 cfs June 17, 1916 (gage height, 

5.0 ft, site and datum then In use); minimum observed, 32 cfs Jan. 30, 1923 (discharge measurement), but may have been less sometime during period of ice effect.

Remarks.--Records fair. Many diversions above station for irrigation of an estimated 

2,560 acres in 1946 with a resulting estimated depletion of 4,480 ac~e-ft of flow. 

Occasional regulation by mlllpond 10 miles upstream.

Discharge, In cubic feet per second, June to September 195]

Day

1 

Z

3

4

S

6

7

S

9

10

11

12

13

14

IS

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

al.700 

al,SOO

al, 900

a2,100

a2,300

a2,300

aZ, 2OO

a2, 100

a2,100

a2,300

a2,60O

a2,800

2,920

2,960

3.100

3,040

2,750

2,580

2,420

2,310

2,200

2,090

2,090

2,090

2,040

2,040

»2,040

1,990

1,890

1,890

-

68,640

2,288

136, 100

Jily

1.940 TTflo

1,840

1,790

1,690

1,490

1,340

1,260

1,260

1,260

1,260

1,160

1,160

1,210

1,160

1,080

1,020

994

932

852

772

724

716

716

672

637

595

567

553

511

484

33,535

1,082

66.520

Aug.

&

414

392

»380

365

345

345

335

340

330

330

310

285

270

257

244

230

230

226

226

230

222

214

202

190

186

530

335

310

275

9,138

295

18,120

Sept.

m222

206

194

186

186

222

210

194

186

176

169

152

144

144

141

141

141

»138

138

138

138

134

144

166

152

152

169

234

-

5,199

173

10,310

Calendar year : Max Mln Mean Ao-ft

Water year : Max Mln Mean Ao-ft

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of records for nearby stations.
WENATCHEE RIVER BASIN 295

Wenatchee Lake near Plain, Vfesh.

Location. Lat 47°49'50", long. 120°46'30". in sec. 19, T. 27 N., R. 17 E., or north

 shore, 2? miles upstream from outlet, 7j miles northwest of Plain, and 33 niles upstream from Leavenworth.

Drainage area. 276 sq mi (revised).

Records available. January 1932 to September 1951.

Page.--Water-stage recorder. Datum of gage is 1,860.00 ft above mean sea level, subject

 to correction to datum of 1929; gage readings have been reduced to elevations above 

mean sea level. Prior to Jan. 4, 1935, staff gage at same site and datum.

Extremes.--Maximum elevation during year, 1,876.46 ft May 12; minimum, 1,869.66 ft Sept.

' 1932-51: Maximum elevation recorded, 1,879.65 ft May 29, 1948; minimum elevation, 

1,869.27 ft Dec. 1, 1936.

.rjcs. No diversion or regulation.

Elevation. In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

69.92

69.87

69.82

69.82

69.93

70.12

70.28

70.73

7O.93

71.45

72.12

71.70

71.44

71.31

71.19

70.97

70.81

70.74

70.85

71.11

71.04

70.91

70.80

70.70

70.83

71.10

71.14

71.22

71.14

71.03

70.93

Nov.

70.99

70.83

7O.86

71.22

71.60

71.64

71.52

71.32

71.15

71.01

70.90

70.81

70.73

70.65

70.59

70.58

70.53

70.48

70.41

70.42

70.48

70.58

70.62

70.75

71.20

72.09

72.36

72.39

72.09

71.83

-

Dec.

71.62

71.39

71.23

71.12

71.00

70.91

70.85

7O.79

70.71

70.73

70.84

70.93

70.90

70.83

70.80

70.75

70.72

70.70

70.69

70.72

70.92

71.16

71.53

72.44

73.36

73.24

72.74

72.32

71.98

71.73

71.53

Jan.

71.36

71.32

71.31

71.16

71.03

70.93

70.83

70.78

70.71

70.67

70.62

70.56

70.57

70.55

70.53

70.50

70.47

70.43

70.42

70.38

70.39

70.33

70.31

70.31

70.43

70.57

70.68

70.53

70.41

70.35

70.33

Feb.

70.34

70.42

70.40

70.40

70.39

70.37

70.37

70.43

70.83

72.74

.

_

73.53

72.85

72.34

72.00

71,74

71.54

71.34

71.25

71.10

70.98

70.88

70.79

70.74

70.67

70.61

70.55

_

_

-

Mar.

70.50

70.47

70.42

70.42

70.40

70.37

70.33

70.31

70.30

70.26

70.25

70.28

70.24

70.23

70.28

70.28

70.22

70.20

70.17

70.17

70.18

70.22

70.21

70.21

70.22

70.24

70.25

70.26

70.29

70.29

70.29

Apr.

70.31

70.36

70.46

70.63

70.. 85

71.04

71.24

71.38

71.46

71.47

71.47

71.55

71.77

72.12

72.32

72.37

72.48

72.62

72.59

72.38

72.14

71.95

71.78

71.68

71.67

71.70

71.76

71.81

71.83

71.60

May

71.70

71.60

71.56

71.63

71.97

72.31

72.91

73.41

73.50

73.83

75.09

76.29

75.40

74.32

73.72

73.57

73.97

74.22

74.01

73.74

73.69

73.96

74.60

74.98

74.70

74.08

73.61

73.33

72.98

72.67

72.42

June

72.38

72.49

72.72

73.01

73.19

73.22

73.12

72.98

72.94

73.03

73.20

73.37

73.57

73.67

74.10

74.31

74.03

73.70

73.52

73.38

73.19

73.10

73.06

73.10

73.10

73.08

73.08

73.02

72.94

72.90

July

72.90

72.89

72.87

72.76

72.47

72.10

71.83

71.72

71.87

71.96

71.97

71.94

71.98

71.99

71.93

71..83

71.73

71.70

71.60

71.40

71.25

71.19

71.14

71.15

71.14

71.08

70.99

70.92

70.89

70.82

70.77

Aug.

70.72

70.69

70.63

70.59

70.56

70.53

70.48

70.44

70.42

70.41

70.39

70.33

70.27

70.23

70.20

70.18

70.17

70.15

70.13

70.14

70.16

70.15

70.11

70.07

70.02

69.97

69.94

70.00

TO. 05

T0.07

70.04

Sept.

7O.O8

69.94

69.90

69.89

69.89

69.88

69.89

70.02

70.08

70.04

69.98

69.94

69.88

69.87

69.86

69.85

69.84

69.84

69.80

69.78

69.76

69.72

69.71

69.67

69.72

69.81

69.82

69.80

69.90

70.32

Note.--No gage-height record Feb. 11, 12. Add 1,800 ft to obtain elevation above mean sea level.

288995 O - 54 - 20
296 WENATCHEE RIVER BASIN

Wenatchee River below Wenatchee Lake, Wash.

Location. Lat 47°49'50", long. 120°46'30", in sec. 19, T. 27 N., R. 17 E., on north 

shore of Wenatchee Lake, 2^ miles upstream from outlet, 1\ miles northwest of Plain, 

and 33 miles upstream from Leavenworth. Discharge measurements made Just below highway bridge half a mile downstream from lake outlet.

Drainage area. 276 sq mi (revised).

Records available.--January 1932 to September 1942, October 1946 to September 1951.

Sage. Water-stage recorder. Datum of gage is 1,860.00 ft above mean sei level, datum 

of 1912; gage readings have been reduced to elevations above mean sea level. Prior 

to Jan. 4, 1935, staff gage at same site and datum.

Average discharge. 15 years, 1,324 cfs.

Extremes. Maximum discharge during year, 7.990 cfs May 12 (elevation of lake surface, 

1,876.46 ft); minimum, 238 cfs Sept. 24 (elevation of lake surface, 1,869.66 ft).

1932-42, 1946-51: Maximum discharge recorded, 13,700 cfs May 29, 1948 (elevation 

of lake surface, 1,879.65 ft); minimum discharge, 134 cfs Dec. 1, 1933 (elevation of 

lake surface, 1,869.27 ft).

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair. Natural regulation in lake. No diversion.

Rating table, water year 1950-51, except period of loe effect (elevation, 

In feet, and discharge, In second-feet)

1,869.6

1,370.0

1,870.5

215

407

769

1,871.0

1,873.0

1,376.3

1,240

3,470

7,710

Discharge, In cubic feet per second, water year October 1950 to Septe-nber 1951

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.

Ac-ft

Oct.

361 

335 

309 

355 

367

434

596

976

1,170

*1,700

2.420 iyf§5

1,700 

1,540

1,440

1,210 

1,050

985

1,090 

1,340

1,280

1,150

1,040 

947 

1,070

1,340 

1,390 

1,440 

1,390 

1,270

1,170

34,849

1,124

4.07

4.70

69,120

Nov.

1,130 

1,070 

1,100 

1,440 

1,870

1,920

1,760

1,540

1,390

1,250

1,140 

1,050 

976 

902

347

839 

795

753

695 

753

753

*839

374 

994 

1,440

2,420 

2,700 

2.750 

2,420 

2,140

"

40,500

1,350

4.89

5.46

80,330

Dec.

1,870 

1,650 

1,490 

1,340 

1,240

1,150

1,090

1,030

956

976

1,080 

1,170 

1,140 

1,070

1,040

994

966

947

938 

966

1,160

1,390

1,820 

2,810 

3.950

3,710 

3,110 

2,640 

2,310 

2,040

1,820

49,863

1,608

5.83

6.72

98,900

Jan.

1.600 

1,540 

1,540 

1,390 

1,270

1,170

1,070

*1,020

956

920

874 

321 

830 

812

795

769 

744

712

703 

672

679

633

618 

618 

712

830 

929 

795 

695 

648

b600

27,965

902

3.27

3.77

55,470

Feb.

b555~ b550 

b550 

b550 

b550

b550

b6OO

712

1,070

3,110

84.000 

84,200 

4,070 

3,230

2,700

2,310 

2,040

1,820

1,600 

*1,490

1,540

1,220

1,120 

1,030 

985

929

865 

812

"

44,753

1,598

5.79

6.03

88,770

Mar.

769 

744 

703 

703 

637

664

633

618

610

53 1

574 

596 

567 

560

596

596 

552

538

m

524

552

545 

545 

552

567 

574 

581 

603 

603

603

18,576

599

2.17

2.50

36,840

Apr.

613 

656 

736 

833 

1,090

1,280

1,490

1,650

*1,700

1,700

1,700 

1,820 

2,040 

2,420

2,640

2,700 

2,870

2.990

2,990 

2,750

2,430

2,260

2,090 

1,980 

1,920

1,980 

2,040 

2,090 

2,140 

2,090

57,793

1,926

6.98

7.79

114,600

May

1,930 

1,S70 

1.820 

1,920 

2,260

2,640

3,350

3,950

4,070

4,430

6,120 

7.710 

6,510 

5,080

*4,310

4,190 

4,690

4,950

4,690 

4,310

4,310

4,690

5,470 

*5,990 

5,600

4,820 

4,190 

3,830 

3,470 

3,050

2,750

129,020

4,162

15.1

17.38

255,900

June

2.750 

2,870 

3,110 

3,470 

3,710

3,710

3,590

3,470

3,350

3,470

3,710 

3,950 

4,190 

4,310

4,820

5.080 

4,690

4,310

*4,070 

3,950

3,710

3,590

3^,590 

3,590 

3,590

3,590 

3,590 

3,470 

3,350 

3,35Q

112,000

3,733

13.5

15.09

222,100

July

3.350 

3,350 

3,350 

3,230 

2,810

2,420

2,140

1,930

2,140

2,260

2,260 

2,260 

2,310 

2,310

2,260

2,140 

2,040

1,980

1,870 

1,650

1,490

1,440

1,390 

1,390 

1,390

1,320 

1,230 

1,160 

1,130 

1,060

.1,010

62,120

2,004

7.26

8.37

123,200

Aug.

966 

938 

883 

847 

821

*795

753

720

703

695

679 

633 

588 

560

538

524 

518

504

490 

497

511

504

477 

451 

420

390 

373 

467 

438 

451

432

18,506

597

2.16

2.49

36,710

Sept.

457 

373 

350 

345 

345

340

345

420

457

432

396 

373 

340 

335

330

325 

 319

319

299 

290

281

263

258

fti

304 

309 

299 

350 

625

10,384

346

1.25

1.40

20,600

Calendar year 1950: Max 8,720 Mln 309 Mean 1,808 Cfsm 6.55 In. 88.94 Ac-ft 1,309,000

Water year 1950-51 : Max 7,710 Mln 242 Mean 1,661 Cfsm 6.02 In. 81. 70 Ac-ft 1,203,000

Peak discharge (base. 5.500 cfsl.--Feb. 11 {time and discharge unknown); May 12 (8:30 a.m.) 7,990 

cfs (76.46 ft); May 24 (9 a.m.) 5,990 cfs (75.05 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for other stations on Wenatchee 

River.

b Stage-discharge relation affected by Ice.
WENATCHEE RIVER BASIN 297

Wenatchee River at Plain, Wash.

Location. Lat 47°45'50", long. 120°39'30", In lot 8, sec. 12, T. 26 N., R. 17 E., on left 

bank at Plain, a quarter of a mile downstream from Beaver Creek, 7? miles downstream 

from Nason Creek, and 12 miles north of Leavenworth.

Drainage area. 591 sq mi.

Records available. November 1910 to September 1951 in reports of Geological Survey. Published as "near Leavenworth" 1910-31. August 1904 to September 1933 (monthly discharge) 

in State Water-Supply Bulletin 5.

Gage. Water-stage recorder. Datum of gage is 1,805 ft above mean sea level (from riverprofile map). Prior to Jan. 8, 1932, staff gage at site a quarter of a mile downstream 

at different datum.

Average discharge. 47 years (1904-51), 2,185 cfs.

Extremes . Maximum discharge during year, 15,300 cfs May 12 (gage height, 10.18 ft); minimum, 450 cfs Sept. 24 (gage height, 1.98 ft).

1910-29, 1931-51: Maximum discharge, 22,700 cfs May 29, 1948 (gage height, 12.43 ft, 

from high-water mark in well); minimum, 191 cfs Dec. 1, 1936 (gage height, 1.34 ft).

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are good. Wenatchee Park Land & Irrigation Co. diverts a maxiirum of about 

12 cfs from Chiwawa River for irrigation of 1,400 acres near Plain. Natural regulation 

by Wenatchee Lake.

Revisions (water years). W 482: 1911-14.

Rating table, water year 195O-51, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

2.0

3.0 

4.0

460

1,180

2,200

5.0

7.0

10.0

3,570

7,200

14,800

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1 

2

3

4

5

6

7

8

9

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 am

In.

Ac-ft

Oct.

615 

587

556

556

650

839

964

1,380

1,690

*2,610

5.580 

2,640

2,330

2,200

2,060

1,770 

1,580

1,520

1,720

2,100

1,920

1,730

1,570

1,430

1,600

1,970

2,100

2,240

2,060

1,900

1,760

52,027

1,678

2.84

3.27

103,200

Nov.

1,750 

1,660

1,740

2,500

2,950

2,870

2,650

2,560

2,080

1,900

1,770 

1,660

1,550

1,450

1,590

1,580 

1,540

1,270

1.180

1,190

1,280

*1,430

1,470

1,740

2,340

3,760

4,080

4.100

3,600

3,200

-

65,400

2,113

3.58

3.99

125,800

Dec.

2,870 

2,490

2,310

2,150

1,940

1,840

1,770

1,660

1,580

1,610

1,790 

1,950

1,850

1,740

1,680

1,610 

1,560

1,550

1.510

1,600

1,950

2,240

2,980

4,460

6.040

5,700

4,790

4,110

5,540

5,180

2,880

78,850

2,544

4.50

4.96

156,400

Jan.

2.580 

2,520

2,480

2,270

2,070

1,900

1,790

1,710

*1,650

*1,570

1,500 

1,420

1,450

1,420

1,400

1,540 

1,500

1,270

1,250

1,190

,170

,160

,120

,120

,550

,610

,500

1,250

1,120

bl,050

31.000

47,450

1,551

2.59

2.99

94,120

Feb.

a9 80 

a9 60

b950

b960

b970

bl.Ooo

bl,100

1,290

2,240

5,920

8.720 

7,960

6,510

5,090

4,240

5,650 

3,240

2,910

2,640

2,470

*2,270

2,120

1,980

1,880

1,800

1,700

1,620

1,570

-

-

-

78,540

2,805

4.75

4.94

155,800

Mar.

1.500 

1,450

1,400

1,400

1,350

1,310

1,270

1,240

1,210

1,170

1,130 

1,160

1,130

1,120

1,170

1,140 

1,080

1,040

1.050

1,040

1,080

1,090

1,070

1,080

1,110

1,140

1,200

1,190

1,210

1,220

1,220

36,950

1,192

2.02

2.55

75,290

Apr.

1.270 

1,570

1,550

1,840

2,260

2,500

2,840

5,080

*3, 180

3,210

5,220 

5,460

4,030

4,800

5,030

5,120 

5,410

5.810

5,600

5,140

4,620

4,260

5,950

5,780

5,790

5,910

4,050

4,190

4,210

4,100

-

111,580

3,719

6.29

7.02

221,300

May

3,920 

5.700

3,730

3,970

4,700

5,450

7,450

8,250

8,510

9,060

12,500 

14.900

12,200

9,560

*8,510

8,120 

9,110

9,610

9,020

8,450

*8,420

9,090

10,600

11,400

10,400

8,840

7,850

7,500

6,510

5,850

5,520

251,700

8,119

13.7

15.84

499,200

June

*5.290 

35,400

a6,000

a6,600

a7,000

7,140

6,850

6,470

6,470

6,650

7,070 

7,470

7,940

8,140

9,200

9.470 

8,540

7,870

*7, 490

7,180

6,770

6,570

6,550

6,530

6,490

6,430

6,410

6,270

6,040

5,980

~

208,280

6,945

11.7

15.11

415,100

July

6.020 

5,890

5,850

5,560

4,950

4,240

3,680

3,570

3,710

3,970

3,910 

5,790

5,870

5,940

5,780

5,540 

3,380

3,330

3,060

2,740

2,500

2,580

2,370

2,390

2,330

2,200

2,000

1,920

1,880

1,770

1.700

106,200

3,426

5.80

6.68

210,600

Aug.

1.640 

1,560

1,480

1,420

1,400

*1,550

1,270

1,250

1,220

1,220

1,210 

al,150

al,050

as 80

a960

a960 

940

892

855

846

853

846

804

783

3750

3710

3690

a710

a790

3790

a750

52,107

1,036

1.75

2.02

63,680

Sept.

720 

692

671

657

645

622

645

790

811

755

720 

657

622

587

574

562 

*568

556

544

526

508

484

478

460

514

601

550

558

656

1,110

-

18,799

627

1.06

1.18

57,290

Calendar year 1950: Max 15,100 Mln 556 Mean 3.O84 Cfsm 5.22 In. 70.83 Ac-ft 2,233,000

Water year 1950-51: Max 14,9OO Mln 46O Mean 2,975 Cfsm 5.03 In. 68.33 Ac-ft 2,154,000

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby stations.

b Stage-discharge relation affected by Ice.
298 VTENATCHEE RIVER BASIN

Icicle Creek above Snow Creek, near Leavenworth, Wash.

Location. Lat 47°32<25", long. 120°42'55", in SE£ sec. 28, T. 24 N., R. 17 E., on right 

bank 0.4 mile upstream from Snow Creek and 4^ miles southwest of Leaveiworth.

Drainage area. 193 sq mi.

Records available. September 1936 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,450 ft (from river-profile map).

Average discharge. 15 years, 594 ofs.

Extremes. Maximum discharge during year, 6,110 cfs May 11 (gage height, 11.12 ft); mini- 

 mum, 110 cfs Sept. 23-25 (gage height, 2.41 ft).

1936-51: Maximum discharge, 17,500 cfs May 28, 1948 (gage height, 13.93 ft), from

rating curve extended above 7,000 ofs on basis of slope-area determination of peak flow;

minimum, 50 cfs Oct. 25, 26, 1942 (gage height, 1.92 ft).

Remarks. Records good except those for period of ice effect, which are poor. No diversion. Some regulation in headwater lakes for irrigation.

Revisions (water years). W 862: 1936-37.

Rating tables, water year 1950-51, except period of ice effect (gfge 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 10 Feb. 11 to Sept. 30

2.5 115

3.0 184

4.0 376

5.0 666

6.0 

7.0

1,080

1,640

2,630

2.4 

3.0 

4.0 

5.0

109

189

400

730

7.0 

9.0 

10.5

1,690

3,480

5,300

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

Cfsm

In.

Ao-ft

Oct.

127 

126

125

127

195

216

260

376

388

1.130

 868 

570

454

482

454

388

352

388

482

617

496

427

376

352

414

468

540

511

454

401

376

12,940

417

2.16

2.49

25,670

Nov.

364 

352

482

700

808

683

617

540

482

454

414

388

364

352

341

341

330

299

260

299

 330

388

388

540

868

1,350

1.580

1,160

931

828

-

17,033

568

2.94

3.28

33,780

Dec.

753

666

633

586

540

511

511

482

468

511

540 

570

526

496

482

454

454

440

427

468

570

617

1,020

1,350

1.760

1,350

1,100

954

847

790

718

21,594

697

3.61

4.16

42,830

Jan.

683 

666

650

617

570

511

496

468

440

427

414 

388

 388

388

376

364

352

352

330

320

320

320

309

*309

401

427

364

270

b250

b240

b240

12,650

408

2.11

2.44

25,090

Feb.

b240 

b250

b250

b250

b260

b260

270

341

1,130

2,630

2.750 

1,860

1,380

1,160

1,020

910

850

790

730

690

655

*620

568

550

520

475

460

445

-

-

-

22,314

797

4.13

4.30

44,260

Mar.

415 

415

400

388

375

350

350

338

326

314

303 

301

301

299

326

314

299

288

283

294

303

296

294

294

303

303

314

314

326

314

314

10,054

324

1.68

1.94

19,940

Apr.

338 

375

460

585

710

790

870

890

890

 870

890 

,020

,250

,450

,400

,400

,510

.570

,380

1,220

1,090

1,020

952

952

1,020

1,090

1,110

1,110

1,040

975

-

30,227

1,008

5.22

5.82

59,950

May

910

870

E50

1,060

1,380

1,510

2,010

2,010

2,290

2,650

5.300 

3,590

2,560

2,130

1,940

#2,210

2,850

2,650

2,380

2,290

2,560

3,050

3,810

 3,150

 2,650

2,290

2,210

2,050

1,690

1,510

1,400

69,850

2,253

11.7

13.46

138,500

June

1.450

lyffo

1,830

2,130

2,210

2,010

1,900

1,720

1,940

2,210

2,380 

2,560

2,650

2,850

5.260

2,750

2,470

2,290

2,210

2,130

2,010

2,010

2,050

2,130

1,940

1,940

1,830

1,760

1,660

1,690

-

63 , 540

2,118

11.0

12.24

126,000

Jul-'

1^600

1,600

1,^80

1,?50

1,060

952

975

1,040

1,090

1,020 

?75

1,020 £ 98

952

890

870

870

790

710

655

620

638

620

568

520

490

460

445

415

328

27,621

891

4.62

5.32

54,770

Aug.

375 

35S

338

326

314

*301

288

277

270

264

262 

250

238

226

219

214

202

192

184

183

184

184

180

170

159

152

136

184

270

268

236

7,408

239

1.24

1.43

14,690

Sept.

195 

177

165

156

148

144

151

183

166

151

145 

137

133

131

128

'127

127

126

*125

124

122

113

111

110

124

141

118

114

137

314

4,343

145

0.751

0.84

8,610

Calendar year 1950: Max 4,700 Mln 125 Mean 822 Cfsm 4.26 In. 57.77 Ao-ft 594,800

Water year 1950-51: Max 5,300 Mln 110 Mean 821 Cfsm 4.25 In. 57.72 Ac-ft 594,100

Peak discharge (base. 2.500 ofs). Feb. 11 (12 p.m. to 1 a.m.) 2,950 efs (8.54 ft); May 11

(11 a.m.) 6,110 ofs (11.12 ft); May 23 (8:30 a.m.) 3,930 ofs (9.42 ft); June 15 (12:15 a.m.) 3,480

ofs (8.97 ft) . Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
WENATCHEE RIVER BASIN 299

Wenatchee River at Peshastin, Wash.

Location. La t 47"34'50", long. 120°37'00", In SE^SWi sec. 8, T. 24 N., R. 18 E., on right 

bank 1 mile northwest of Peshastin and 3f miles upstream from Peshastin Creek.

Drainage area.- -1.000 sq ml, approximately.

Records available. October 1928 to September 1951 (monthly discharge only, Oitober 1928 

to February 1929).

. Water-stage recorder. Datura of gage Is 1,028.04 ft above mean sea level, datum of 

'929. Prior to Mar. 24, 1932, staff gage at site l£ miles downstream at different datum.

Average discharge. 23 years, 2,906 cfs.

Extremes . Maximum discharge during year, 20,600 cfs May 12 (gage height, 12.31 ft); minimum, 360 cfs Sept. 23 (gage height, 1.67 ft); minimum daily, 613 cfs Sept. 23-25.

1929-51: Maximum discharge, 32,300 cfs May 28, 1948 (gage height. 15. 8"? ft); minimum, 183 cfs Oct. 14, 1939 (gage height, 1.26 ft); minimum daily, 270 cfs Oct. 2, 1929, 

Nov. 30, 1936.

Remarks . Records excellent except those for period of ice effect, which are fair. Numerous diversions upstream for irrigation of an estimated 3,200 acres above station, and 

domestic use above and below station. Icicle irrigation canal diverts upstream and bypasses station, and supplies a substantial part of remaining 22,000 acres irrigated in 

basin. Some regulation by powerplant in Tumwater Canyon.

Rating table, water year 1950-51, except period of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.1 

3.0 

4.0 

6.0

595

1,290

2,330

5,250

8.0

10.0

12.1

9,330

14,200

20,000

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

926 

686 

822

830

958

1,160

1,340

1,820

2,270

3,480

*4.740

3,590

3,030

2,830

2,760

2,390

2,160

2,040

2,270

2,830

2,640

2,330

2,100

1,940

1,990

2,570

2,760

2,960

2,700

2,510

2,270

69,902

2,255

138,600

Hov.

2,210 

2,100 

2,270

3,100

3,960

3,810

3,520

3,100

2,760

2,510

2,330

2,210

2,040

1,940

1,880

1,880

1,820

1,720

1.570

1,620

*1,770

1,990

2,100

2,330

3,380

5,430

5.980

5,790

5,080

4,580

-

86,780

2,893

172,100

Dec.

3,960 

3,590 

3,310

3,100

2,760

2,640

2,570

2,390

2,330

2,330

2,570

2,700

2,640

2,510

2,390

2,330

2,270

2,210

2.160

2,270

2,700

3,030

4,260

6,170

8.000

7,790

6,560

5,610

4,910

4,420

3,960

110,440

3,563

219,100

Jan.

5.660 

3,526 

3,520

3,240

2,960

2,700

2,570

2,450

2,330

2,270

2,160

2,040

2,040

»2,040

2,040

1,990

1,880

1,880

1,826

1,720

1,670

1,670

1,620

1,620

1,880

2,270

2,160

1,820

bl,650

bl,450

»bl,380

68,020

2,194

134,900

Feb.

bl.500 

bl,300 

bl,300

bl,300

bl,300

bl,400

bl.500

1,670

3,140

8,480

11.900

11,000

8,660

. 6,960

5,790

5,080

4,580

4,110

3,740

»3,590

3,310

3,170

2,960

2,830

2,700

2,570

2,450

2,330

_

-

-

110,420

3,944

219,000

Mar.

2.210 

2,210 

2,100

2,100

2,040

1,990

1,940

1,880

1,820

1,720

1^670

1,720

1,670

1,670

1,720

1,770

1,670

1,620

1.570

1,620

1,720

1,720

1,720

1,770

1,820

1,940

2,100

2,040

2,100

2,O4O

2,040

57,720

1,862

114,500

Apr.

m2,700

3,170

3,810

4,110

4,580

4,740

4,910

»4,910

4,740

5,580

5,9SO

6,960

7,160

7,370

7,580

8.000

7,790

7,160

6,360

5,790

5,430

5,250

5,250

5,430

5,610

5,790

5,790

5,430

-

161,370

5,379

320,100

May

5,250 

4.910 

4,910

5,250

6,560

7/370

9,790

11,000

11,200

12,400

18,300

20.000

16,600

» 13, 400

11,400

11,400

12,900

13 , 400

12,700

*11,900

11,900

13,900

15,600

» 15, 800

14,200

12,200

11,000

10,200

8,880

8,000

7,370

348,690

11,250

691,600

June

7.160 

7^ 580 

8,220

9,330

9,790

10,OOO

9,330

8,880

8,880

9,330

10,000

10,700

11,400

11,900

15.400

13,400

11,900

»11,200

10,500

10,000

9,560

9,330

9,330

9,330

9,100

8,880

8,880

8,660

8,440

8,220

-

292,630

9,754

580,400

July

8.220 

8,220 

8,OOO

7,790

6,760

5,790

5,080

4,910

5,080

5,430

5,250

5,080

5,250

5,250

5,080

4,740

4,580

4,580

4,110

3,740

3,380

3,240

3,170

3,240

3,100

2,900

2,700

2,510

2,450

2,330

2.210

144,170

4,651

286,000

Aug.

2.10Q 

1,990 

1,940

1,880

»1,820

,720

,670

,570

,570

,570

,570

,470

,380

,340

,240

,200

,200

,110

,110

,070

1,070

1,070

1,070

1,010

950

894

870

934

1,240

1,240

1,200

42,068

1,357

83,440

Sept.

1,030 

966 

902

870

838

798

814

918

1,030

982

934

870

798

762

741

720

720

720

681

»674

655

637

615

613

513

769

734

694

734

1.240

-

24,070

802

47,740

Calendar year 1950: Max 21,5OO Mln 755 Mean 4,264 Ac-ft 3,087,000

Water year rear 1950-51: igso-51: Max nax 20,000 20,000 Mln mn 613 613 Mean Mean 4,154 4,10* Ac-ft Ac-ri 3,OO7,OOO o,uu/,uuu

discharge (base. ll.OOO cfsl. Feb. 11 (6 p.m.) 12,400 cfs (9.29 ft); May 12 (2 to 7 a.m.)

cfs (12.31 ft); May 24 (2 a.m.) 16,400 cfs (1O.80 ft); June 15 (9:3O p.m.) 14,000 cfs (9.88

Peak 

20.60O 

ft).

» Discharge measurement made on this day.

b Stage-discharge relation affected by Ice
300 DOUGLAS CREEK BASIN

Douglas Creek near Alstown, Wash.

Location. Lat 47°35'00", long. 120°00'50", in si sec. 12, T. 24 N. , R. 22 E. , on left 

bank lj miles northwest of Alstown and 2.9 miles south of Douglas.

Drainage area. 114 sq mi.

Records available. June 1949 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 2,260 ft (by barometer ) .

Extremes . Maximum discharge during year, 293 cfs Mar. 26, from rating curve extended above 

60 cfs as explained below; maximum gage height, 3.83 ft Mar. 27; miniirum discharge, 0.3 

cfs Aug. 17, but may have been less sometime during periods of no gage-height record.

1949-51: Maximum discharge, 1,350 cfs June 18, 1950 (gage height, 6.70 ft, from 

high-water mark) , from rating curve extended above 60 cfs on basis of slope-area determination at gage height 13.05 ft; minimum, 0.1 cfs Oct. 19, 1949, but iray have been less 

during period of no gage-height record Jan. 21-24, 1950.

Flood of June 10, 1948, reached a stage of 13.05 ft, from floodmarks (discharge, 6,420 

cfs), from rating curve extended above 60 cfs on basis of slope-area determination of 

peak flow.

Remarks . Records fair except those above 50 cfs and those for periods of doubtful or 

no gage-height record, which are poor. No regulation. Possible minor diversions for 

domestic use above station.

Rating table, water year 195O-51 (gage height. In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Mar. 25-30)

1.9

2.0

2.1

2.2

0.3

1.7

5.1

12.5

2.3 

2.6 

3.1

23

65

157

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.6

.6

.6

.7

.7

.7

.7

.6

.6

.6

.4

74

*.6

.6

.7

.7

.8

77

.6

.6

.6

.6

.6

.7

.7

.8

.8

.6

.7

.7

.7

20.0

0.65

40

Nov.

0.7

,7

.7

.7

JL

.6

.7

.7

.6

.7

.7

.7

.8

.8

.8

.7

.8

1.0

1.0

1.0

1,0

1.0

1.0

T72" 1.2

1.2

1.0

.8

.8

.8

-

25.0

0.83

50

Dec.

*1.0

.7

77

.7

.7

.7

.8

.8

1.0

.8

.8

.7

.8

.7

.8

.8

.8

.8

.8

.8

.8

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

24.4

0.79

48

Jan.

0.8

.8

1.0

.7

.6

(*)

 al.2

35.1

1.13

70

Feb.

. a5.2

(*)

_

_

-

145.6

5.20

289

Mar.

a25

32

40

149

154 145-

79

*86

83

1,343

43.3

2,660

Apr.

a25

-

750

25.0

1,490

May

a4.0

*3.7

3.7

3.0

2.7

3.3

3.0

3.0

2.7

5.1

3.3

2.4

3.0

2.7

2.1

2.1

2.1

1.7

105.6

3.41

209

June

.5

.5

.1

,7

a .0

a .0

a .5

a .7

.9

.7

.5

.5

.5

.5

.3

' 73~ .2

'.3

.5

.5

.5

a .4

a .4

a .4

a .3

a .3

a .2

.2

.2

.2

-

52.8

1.76

105

Jul-r

.0

.0

.0

.2

.5

.3

* .2

.0

.2

.3

.5

.0

.0

.0

.0

.0

.0

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.0

.8

7s

33.7

1.15

71

Aug.

0.8

^8

.8

.8

.8

.8

.8

*.8

 . .

!s

.8

.7

17.3

0.56

34

Sept.

0.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.8

75

.8

.7

.7

.7

.8

.7

.7

*.7

.6

.7

.6

.7

.7

.7

.7

.7

.8

.8

-

20.5

0.68

41

Calendar year 1950: Max 540 Mln 0.2 Mean 12.7 Ac-ft 9,190

Water year 1950-51: Max 154 Min - Mean 7.05 Ac-ft 5,110

Peak discharge (baae, 400 efs). No peak above base. 

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on basis of 2 discharge measurements, 

recorder graph and records for stations near Palisades and at Palisades.
DOUGLAS CREEK BASIN 301

Douglas Creek near Palisades, Wash.

Location.--Lat 47°28'00", long. 119°52'30", in NW£ sec. 30, T. 23 N., R. 24 E., on right 

bank just upstream from Great Northern Railway bridge 1.3 miles upstream from Moses 

Coulee and 3.8 miles northeast of Palisades.

Drainage area. 206 sq mi.

Records available. November 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,360 ft (by barometer).

Extremes. Maximum discharge during year, 1,520 cfs Mar. 26 (gage height, 5.70 ft), from 

rating curve extended above 70 cfs on basis of slope-area determination at gage height 

6.30 ft; minimum, 6.8 cfs part of each day Aug. 11-23, but may have been less sometime 

during a period of doubtful or no gage-height record; minimum gage height, 1.68 ft 

Feb. 21.

1949-51: Maximum discharge, 1,960 cfs June 18, 1950 (gage height, 6.30 ft, from 

high-water mark in well), from rating curve extended above 70 cfs on basis of slope-area 

determination of peak flow; minimum, 5.6 cfs Jan. 24, 25, 1950; minimum ga(^e height, 

that of Feb. 21, 1951.

Remarks. Records fair except those for periods of doubtful or no gage-height record, and 

those above 60 cfs, which are poor. A few minor diversions above station for irrigation and domestic use. No regulation.

Rating table, water year 1950-51 (gage height, In feet,

and discharge. In cubic feet per second) 

(Shifting-control method used Feb. 11 to Mar. 19)

1.9

2.0

2.1 

2.3

4.2 

7.7

53

2.6 

3.0 

3.5

4.1

113

220

370

610

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Total

Mean

Ac-ft

Oct.

7.7

7.7

7.2

7 .7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

*7.2

7.2

7.2

7.2

7.7

7.2

7.7

7.7

7.2

7.7

7.2

7.7

7.7

8.2

572

8.2

8.2 

8.2

7.7

237.2

7.65

470

Nov.

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

8.2

8.2

7.7

7.7

7.7

7.7

7.7

7.7

8.2

8.2

8.7

8.2

S.2

8.2

8.2 

8.7

-

237.0

7.90

470

Dec.

8.2

575" 7.7

7.7

*7.7

7.7

7.7

8.2

7.7

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.2

8.7

8.7

8.7

~g-.2 11

9.2

8.7 

9.2

8.7

259.0

8.35

514

Jan.

8.7

8.7

8.2

8.2

7.7

7.7

7.7

7.7

7.7

*7.7

T72~ 7 .2

I'.l

8.2

8.2

8.2

7.7

7.7

7.7

8.2

7.7

7.7

7.7

8.2

8.2

7.7

a7.6

a7.6 

a7.7

a7.8

243.6

7.86

483

Feb.

a8.0

aS.O

8.2

8.2

8.2

7.7

577

7.7

114

230

191

33

19.5

16.5

16.5

13

12.5

13

12

9.8

9.8

*14

12.5

11

12

10.5

9.8

10.5

-

-

835,1

29.8

1,660

Mar.

9.8

9.2

9.2

9.8

10.5

9.8

8.7

9~.B || 2

9.2

9.2

9.8

10.5

27

27

16.5

15

39

143

317

244

*208

325

310

590

437J

355

a230 

a300

470

4,180.4

135

8,290

Apr.

530

490

470

340

220

a30

-

2,800

93.3

5,550

May

*15.5

15.5

15

15

15

15

18.5

19 .5 

15.5

14

24

29

19-.5

*16.5

15.5

15

13

12.5

12

12

11

10.5

10.5

15.5

10.5

9.8

11

9.8

9.2 972-

9.2

443.7

14.3

880

June

8.7

8.2

8.2

10.5

15.5

15.5

14

11 

9.8

9.8

8.7

8.7

. a8.4

-

279.8

9.33

555

July

a8.2

*a8.2

8.2 

8.2

8.2

8.2

8.2

8.2

8.2

8.2

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7

7.7 

7.7

7.7

246.2

7.94

488

Aug.

7.7

7.7

7.7

7.7

7.7

7.7

7.7

*7.7 

7.7

7.7

7.2

7.2

6.8

678

6.8

6.8

6.8

6.8

6.8

6.8

7.2

7.2

7.2

7.2

7.2

7.2

7.7

8.Z

f-rf

7.2

228.5

7.37

453

Sept.

7.7

7.2

772

7.2

7.2

7.2

7.2

7.2 

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.2

7.7

7.7

7.7

7.7

7.2

7.7

7.7

Iff

-

221.5

7.38

439

Calendar year i960: Max 976 Mln 6.2 Mean 38.7 Ac-ft 27,990

Water year 195O-51: Max 590 Mln 6.8 Mean 28.0 Ac-ft 20,250

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on basis of records for stations near 

Alstown and at Palisades.
302 DOUGLAS CREEK BASIN

Douglas Creek at Palisades, Wash.

Location. Lat 47°25', long. 119°56', in SE$ sec. 10, T. 22 N., R. 23 E., on left bank 

three-quarters of a mile south of Palisades.

Drainage area.--844 sq mi.

Records available.--January to September 1951 (fragmentary).

Gage. Water-stage recorder. Altitude of gage is 955 ft (by barometer).

Extremes.--Maximum discharge during period, 1,990 cfs Mar. 26 (gage height, 7.22 ft), from 

rating curve extended above 260 cfs by logarithmic plotting; no flow at times during 

year.

Remarks. 'Records fair except those above 300 cfs and those for periods of no gage-height 

record, which are poor. Daily discharge not published below 5 cfs; hovever, there is 

no flow at times. No regulation. A few minor diversions for Irrigation and domestic 

use above -station.

Rating table, January to September 1951 (gage height, In feet, 

and discharge. In cubic feet per second)

2.0 

2.2 

2.4 

2.6 

2.8

4.7 

7.8

3.0 

3.5 

4.0 

4.5 

5.3

166

290

425

760

Discharge, In cubic feet per second, January to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

_

_

_

_

-

_

_

_

_

-

.

_

_

_

-

_

_

_

_

5.5

6.8

5.0

6.1

5.7

5.7

_

_

_

_

-

Feb.

_

_

_

_

-

.

.

.

_

635

466

_

_

_

-

_

.

_

_

-

(»)

5.7

5.1

5.4

_

_

_

_

-

Mar.

_

_

_

-

-

_

_

.

_

-

_

_

_

_

51

78

46

38

100

245

a280

*a250

*a!50

191

257

758

291

aZOO

8140

»a!70

a200

Apr.

a240

a!80

151

1E7

alO

-

May

6.0

*5.4

5.3

5.3

5.1

5.0

7.0

7.5

6.0

5.3

6.6

13

7.6

*6.6

6.1

5.5

5.4

5.4

5.3

5.1

_

_

6.0

5.0

_

_

_

_

-

June

_

_

_

_

6.4

»7.0

a6

a.5

.

-

_

_

_

_

-

_-

_

_

_

-

_

_

_

-

..

_

_

_

-

Julj- Aug. Sept.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations ne4r Alstown and 

near Palisades.
COLUMBIA RIVER MAIN STEM 303

Columbia River at Trinidad, Wash.

Location. Lat 47°13'30", long. 120 0 00'50", in SE$ sec. 13, T. 20 N., R. 22 E., on left 

bank half a mile southwest of Trinidad, 8£ miles downstream from Colocham Creek, and 

12 miles downstream from Rock Island Dam.

Drainage area. 89,700 sq mi, approximately.

Records available. January to December 1910 (gage heights only). May 1913 to September 

T55TIPublished as "at Wenatchee" 1910, 1913-16, and as "at Vernita" 1917-30.

Sage. Water-stage recorder. Datum of gage is 500 ft above mean sea level, unadjusted. 

Prior to Jan. 1, 1916, staff gage one mile upstream from highway bridge at Wenatchee 

(24 miles upstream) at datum 583 ft above mean sea level, unadjusted. Ja-i. 1 to Dec. 31, 

1916, staff gage on pier of highway bridge at Wenatchee at datum 579.30 ft above mean 

sea level, unadjusted. Jan. 14, 1917, to Sept. 30, 1930, staff gages at ferry at Vernita 

(50 miles downstream) at datum 388.7 ft above mean sea level, unadjusted.

Average discharge. 38 years, 117,700 cfs.

Extremes. Maximum discharge during year, 408,000 cfs May 28 (gage height, 48.42 ft); minImum, 53,100 cfs Oct. 7 (gage height, 22.08 ft).

1913-51: Maximum discharge, 692,600 cfs June 12, 1948 (gage height, 59.35 ft); minimum, 4,120 cfs Feb. 10, 1932 (gage height, 11.40 ft).

Maximum discharge known, about 740,000 cfs June 7, 1894 (based on information obtained 

at other points).

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Diversion above station for irrigation of about 500,000 acres is stall percentage 

of flow past gage. Some diurnal fluctuation caused by powerplants at Rock Island and at 

Brand Coulee Dam. Plow regulated by Franklin D. Roosevelt Lake (see p. 2^9) and reservoirs in Kootenai, Pend Oreille, Spokane, Okanogan, and Chelan River basl-s.

Rating table, water year 1950-51 (gage height, In feet, and discharge. 

In cubic feet per second)

22.6

23.0

24.0

26.0

28.0

56,700

59,500

66,500

82,500

99,500

30.0

32.0

34.0

36.0

38.0

118,800

140,600

164,600

190,700

219,100

40.0

42.0

44.0

46.0

48.1

250,100

283,300

319,300

357,800

401,000

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Total 

Mean 

Ac- ft

Oct.

66,000 

64,300 

68,800 

69,200 

64,200

60,400 

58.000 

56,300 

58,900 

63,000

63,900 

62,700 

63,400 

61,500 

61,500

60,500 

67,200 

71,600 

76,500 

71,100

70,500 

75,900 

74,500 

71,300 

74,100

77,800 

79,500 

79,800 

79,200 

78,300 

81.400

*2A33.3 

68,820 

*4,231

Nov.

86,600 

95,200 

97,800 

97,400 

98.000

93,000 

86,700 

87,100 

80, 700 

81,400

 77,200 

75,500 

74,900 

71,500 

68,500

71,200 

76,500 

80,200 

72,700 

65,100

72,800 

64,800 

64,300 

58.300 

65,500

70,900 

78,300 

80,700 

74,300 

74,300

*2,341.2 

78,040 

*4,644

Dec.

77,100 

80,400 

74,300 

 74,200 

71,500

71,700 

69,000 

69,300 

66,700 

62,000

57,300 

61,200 

66,600 

70,300 

70,300

69,500 

65,400 

63,400 

71,400 

71,100

71,900 

76,600 

78,700 

80,100 

89,500

101,800 

112,500 

115,400 

117,800

117, OOO 

116.300

4:2.460.3 

79,360 

*4,880

Jan.

118,000

113,500 

117,000 

116,700 

106,800

87,400 

87,000 

91,000 

82,400 

75,000

73,800 

 74,800 

84,800 

86,200 

86,600

89,100 

89,300 

88,300 

84,700 

86,900

88,300 

88,900 

82,700 

75,200 

74,300

82,000 

82,500 

82,600 

70,400 

74,500 

74,300

*2,715 

87,580 

*5,385

Feb.

73,700 

72,200 

69,600 

64,100 

59.000

61,500 

68,600 

69,700 

77,300 

95,800

107,100 

105,200 

105,400 

110,600 

112,500

117,900 

138,800

136.800 

128.400 

133,000

128,600 

118,600 

 115,400 

116,200 

116,100

113,000 

106,000 

101,300

$2,822.4 

100,800 

*5,598

Mar.

98,700 

95,650 

94,200 

93,900 

93,300

 85,800 

82,200 

88,300 

88,200 

88,900

85,400 

87,700 

87,100 

85,700 

84,500

85,900 

88,300 

87,800 

89,400 

90,400

90,400 

87,100 

86,200 

84,800 

82,500

 71,600 

76,400 

73,000 

71,600 

73,400 

74,900

*2,651.2 

85,520 

*5,259

Apr.

73,200

76,9OO 

77,700 

82.500 

85,300

87,700 

90,100 

94,100 

97,200 

94,700

86,900 

95,500 

93,300 

103,700 

115,800

128,700 

146,700 

170,900 

184,000 

191,500

190,400 

186,100 

182,600 

174,500 

157,500

151,500 

154,900 

159,000 

159,900 

161,100

$3,853.9 

128,500 

$7,644

May

162,700

169,000 

177,600 

178,900 

179,300

180,900 

197,000 

223,400 

256,300 

293,200

308,700 

318,400 

325,600 

344,600 

352,800

350,400 

 363,800 

385,200 

401,000

384,400

390,100 

385,200 

398,900 

396,800 

392,200

390,900 

388,000 

400,000 

 394,700 

375,800 

382,100

*9,847 . 9 

317,700 

*19,530

June

376,000

374,800 

361,800 

355,800 

355,800

353,400 

342,100 

334,100 

321.200 

311,000

301,100 

290,300

296,600 

311,900 

323,100

334, 100 

346,100 

"351,800 

359,600 

351,800

349,800 

350,800 

345,700 

345,700 

346,500

343.000 

341,700 

 337,900 

333,700 

327,800

*10,175 

339,200 

$20,180

July

323,700

317, OOC 

317,400 

308,800 

314, 10C

314,600 

312, 30C 

310,100 

312,800 

313,700

311,000 

307,900 

306,300 

300,700 

303,300

298,600 

297,100 

293,900 

288,500 

292,300

290,100 

283,300 

273,100 

269,700 

262,300

258, 60C 

250,100 

242, 10C 

235,700 

226,300 

225. 40C

*8,958.S 

289,000 

*17,77C

Aug.

215,800

208,900 

207,100 

200,800 

195,900

al90,000 

3200,000 

9210,000 

1210,000 

8210,000

al 80,000 

139,300 

140,500 

140,500 

127,600

115,800 

105,600 

95.300 

94,400 

104,000

103,700 

106,300 

98,200 

99,000 

 96,800

94,800 

96,400 

100,100 

100,800 

98,400 

98,200

*4,3B2.2 

141,400 

$8,692

Sept.

96,900 

94,200 

92,400 

94, 100 

94,200

91,400 

88,700 

85,400 

80,900 

74,700

84,500 

80,900 

78,900 

79,300 

77,700

77,400 

72,400 

 76,100 

69,500 

67,100

68,200 

66,000 

67,400 

65,400 

68,300

64,400 

64,400 

69,000 

69,600 

65.000

$2,322.4 

77,410 

$4,606

Calendar year 1950: Max 523,600 Mln 50,000 Mean 147,800 Ao-ft 107,000,000 

Water year 1950-51: Max 401,000 Mln 57,300 Mean 149,800 Ao-ft 108,400,000

* Discharge measurement made on this day.

$ Expressed In thousands.

a Ho gage-height record,- discharge estimated on basis of records for station at Oiand Coulee Dam.
304 CRAB CREEK BASIN

Crab Creek at Irby, Wash.

Location. Lat 47°21'30", long.. 118"51'00", in NV£ sec. 31, T. 22 N. , R. 3£ E. , on right 

bank 8 ft upstream from highway bridge at Irby, 5 miles downstream from Lake Creek, and 

7 miles west of Odessa.

Drainage area. 974 sq mi.

Records available. September 1942 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,386.30 ft above mean sea level, 1947 

supplementary adjustment, datum of 1929.

Average discharge. 9 years, 86.4 cfs.

Extremes. Maximum discharge during year, 3,240 cfs Mar. 16 (gage height, 8.40 ft), from 

rating curve extended above 380 cfs by logarithmic plotting; minimum, 14.5 cfs Dec. 2 

(gage height, 2.00 ft).

1942-51: Maximum discharge, 3,640 cfs Mar. 5, 1950 (gage height, 8.96 ft), from 

rating curve extended above 1,200 cfs by logarithmic plotting; minimum, 2.0 cfs Jan. 12, 

1948 (gage height, 1.80 ft).

Remarks. Records good except those above 400 cfs, which are fair, and those for periods 

of ice effect or no gage-height record, which are poor. No regulation. Some diversion 

above station for irrigation.

Rating table, water year 1950-51, except period of Ice effect (gag'; 

height, In feet, and discharge, In cubic feet per second)

2.0 

2.2 

2.4 

2.7 

3.0 

3.5

64

118

190

350

4.0 

5.0 

6.0 

7.0 

8.1

460

705

1,100

1,730

2,840

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

21

20

30

31

31

21

31

31

20

»20

19

19

19

19

19

19

19

18.5

18.5

18.5

18.5

17.5

1775-

18.5

18.5

18.5

17.5

18.5

19

18.5

17.5

594.5

19.2

1,180

Nov.

18.5

17.5 ie!s

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

17.5

16.5

17.5

17.5

17.5

16.5

17.5

16.5

16.5

16.5

16.5

16.5

15.5 *T5-75"

15.5

-

514.0

17.1

1,020

Dec.

15.5

14.5 15-75-

15.5

16.5

17.5

18.5

19

19

20

31

31

22

23

24

34

24

24

24

25

25

25

25

SB- 26

35

35

36

36

36

26

683.5

33.0

1,360

Jan.

31

33

35

39

40

41

42

44

»45

48

48

48

48

49

48

49

49

53

54

53

54

54

55

69

85_

66

55

51

50

49

49

1,531

49.4

3,040

Feb.

49

4?

52

54

54

54

54

a75

682

1,910

2,160

1,600

1,080

668

490

430

400

373

360

*353

341

335

339

316

303

388

371

364

_

-

13,391

478

36,560

Mar.

357

344

332

333

217

217

211

214

T55" 199

199

236

364

537

858

3,780

2,760

1,460

875

645

533

490

450

430

410

388

363

*360

363

350

335

17,285

558

34,380

Apr.

336

JT6

306

296

382

271

260

244

241

232

223

217

211

199

193

185

172

164

152

145

142

133

127

120

114

110

Tio- 108

120

122

-

5,841

195

11,590

May

127

155

127

125

118

114

112

112

112

104

108

108

106

104

102

96

91

*84

78

80

70

67

66

70

62

6062"

62

62

67

69

2,850

91.9

5,650

June

70

70

69

70

Zi

74

72

72

70

70

67

64

64

62

61

55

52

55

54

52

41

39

40

36

41

39

37

36

36

36

-

1,678

-55.9

3,330

July

36

36

39

40

SB

»37

35

32

32

35

35

34

34

35

31

31

30

30

30

29

29

29

30

29

29

29

29

28

26

25

28

9F4

32.1

1,970

Aug.

2826"

26

26

28

28

»26

26

25

24

24

23

23

23

23

23

22

22

22

22

22

21

21

21

21

2020-

21

21

23

22

723

23.3

1,430

Sept.

22

ZT

21

21

21

21

21

21

21

21

21

21

21

20

20

20

20

20

20

20

*20

20

19

18.5

1575"

18.5

18.5

19

20

21

-

607.0

20.2

1,200

Calendar year 1950: Max 3,360 Mln 11 Mean 166 Ac-ft 120,000

Water year 1950-51: Max 2,780 Mln 14.5 Mean 1-28" Ac-ft 93,610

Peak discharge (base. 500 efs). Feb. 11 v .m.) 2,260 cfs (7.61 ft)j Mar. 16 (11 p.m.) 3,240 cfs

(8.40 ft).

* Discharge measurement made on this day.

a Mo gage-height record; discharge estimated on basis of record for part of day.

Note .--Stage-discharge relation affected by Ice Jan. 27 to Feb. 7 (no gage-height record Jan. 29 to 

Feb . 7).
CRAB CREEK BASIN 305

Wilson Creek at Wilson Creek, Wash.

Location. Lat 47°26', long. 119°06', in SW£ sec. 6, T. 22 N., R. 30 E., on right bank 

half a mile upstream from mouth and town of Wilson Creek.

Drainage area. 470 sq mi, approximately.

Records available. February to September 1951.

Sage. Water-stage recorder. Altitude of gage is 1,301 ft (by barometer).

Extremes. Maximum discharge during period, 1,420 cfs Mar. 16 (gage height, 9.59 ft); no 

flow on many days.

Remarks. Records fair. Diversions for irrigation above station. Some regulation by 

storage for irrigation above station.

Rating table, period Feb. 1 to June 30, 1951 (gage height, in feet, 

and discharge, in cubic feet per second)

4.7

4.8

4.9

5.0

5.1

5.2

.3

1.0

3.3

9.3

17

5.3

5.4 

5.7 

6.0 

7.0 

7.4

25

36

85

14S

418

545

Discharge, In cubic feet per second February to September 1951 ,

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct. Nov. Dec. Jan. Feb.

o

0

0

0

0

0

0

0

21

52

425

80

1.5

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_

_-

579.6

20.7

1,150

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

2.0

2.7

528

195

19

22

3.3

118

219

21

.1

497

474

*163

*3.0

.7

12

135

2,414.8

77.9

4,790

Apr.

144

76

61

5.J7

32

44

39

40

56

44

40

11

37

36

32

31

31

29

28

28

27

25

23

22

22

21

20

22

22

22

-

1,068.7

35.6

2,120

May

»21'20

18.5

17.5

16

13

14.5

17.5

16

13.5

13

13

13.5

13

12

10

7.8

*7.1

7.1

5.7

5.1

4.1

3.3

2.4

3.3

2.4

1.7

1.1

1.5

1.3

.16

296.5

9.56

588

June

0.1

0

0

0

.1

*4.1

4.6

"sTs 5.7

'.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

18.6

0.620

37

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year : Max Mln Mean Ac -ft

Hater year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.
306 CRAB CREEK BASIN

Crab Creek near Moses Lake, Vfesh.

Location.--Lat 47°11'25", long. 119°16'00", In SV&SEi sec. 26, T. 20 N., F. 28 E., on 

right bank 3 miles upstream from Parker Horn and 4 miles north of town of Moses Lake.

Drainage area. 2.040 sq mi, approximately.

Records available. September 1942 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,070.39 ft above mean sea level (Bureau 

of Reclamation benchmark),

Average discharge. 9 years, 33.6 cfs.

Extremes. Maximum discharge during year, 1,590 cfs Mar. 18 (gage height, 5.26 ft); no 

flow Jan. 30 to Feb. 7, Feb. 12, 13.

1942-51: Maximum discharge, 2,810 cfs Feb. 27, 1949 (gage height, 5.57 ft); no 

flow during several months each year.

Remarks. Records good above 10 cfs and fair below. Numerous small diverrlons for irrigation and domestic use above station. Most of flow from upper basin passes this station under ground. No regulation.

Rating table, water year 1950-51, except periods of indefinite stage-discharge 

relation (gage height. In feet, and discharge. In cubic feet per second) 

(Shifting-control method used Oct. 4 to Nov. 14)

1.1

1.2

1.3

1.4

1.5

0

.1

.4

1.5

3.6

1.6

1.7

1.8 

2.0 

2.5

6.6

11.5

17.5

35

87

3.0 

3.5 

4.0 

4.5 

4.9

132

213

395

730

1,110

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Ao-ft

Oct.

ft* 

el. 2

1.6

!il

1.5

1.0

1.5

1.5

1.0

**.9

.8

.8

*.8

1.1

.8

1.5

1.4

1.0

1.2

.9

.9

.9

.8

.9

.9

.9

.8

1.0

1.5 ".8

34.3

1.11

68

Nov.

[5

.6

.5

.5

.3

.3

.2

.3

.4

.4

.3

.3

e.3

.3

.3

.3

.3

.3

.3

.3

.2

.3

.4

.3

.4

.3

.3

.4

10.8

0.36

21

Dec.

0.4 

tf

.4 *.2

.2

.3

.2

.4

.4

.4

.4

.3

.3

.3

.6

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2 

.2

9.1

0.29

18

Jan.

0.2ft.2

.2

.1

.1

.1

.1

.2

.2

*.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.2

.1

0 

ff

4.7

0.15

9.3

Feb.

§ 

0

0

0

0

0

.2

.2

.2

.1

0

0

860

1.040

891

678

509

370

302

255

211

190

179

170

*165

171

170

-

-

6,161.7

220

12,220

Mar.

159 

151 

138

143

154

138

130

132

143

132

124

122

123

121

130

132

190

960

900

662

738

1.000

846

730

606

509

*536

620

627

529 

425

12,050

369

23,900

Apr.

355 

325 

313

291

258

221

195

190

206

202

202

199

195

175

165

164

162

177

147

138

136

134

130

127

123

119

115

116

116

101

5,503

183

10,920

May

103

m102

101

100

100

87

89

90

86

83

82

75

68

*69

72

69

63

58

53

47

41

33

25

22

19

15

12

11.5 

1*8

2,015.3

65.0

4,000

June

9.3 

8.3 

7.8

10.5

14

14.5

15

14.5

15

16

22

26

27

28

29

25

22

16

14

10.5

9.8

9.8

9.8

9.3

6.2

5.6

4.7

3.6

2.6

1*1

408.0

13.6

809

July

2,0 

1.8 

2,0

ITS

2.0

1.6 *1.8

1.6

1.4

1.4

1.5

1.4

1.4

1.2

1.2

1.2

1.1

172

1.2

1.2

1.2

1.2

1.2

1.2

1,2

1,4

1.4

1.2

1.2 

1.2

44 8

1.45

69

Aug.

i!o

1.1

1.0

1.0

1.0

*1.0

1.1

1.1

1.0

.9

.9

.9

.9

.9

ft

.8

.6

.8

.9

.8

.8

.8

.6

.8

.6

1.0

1.0 

.8

28.5

0.92

57

Sept.

'.6

.6

.5

.5

t

j.

*]

'.3

.4

12.8

0.43

25

Calendar year 1950: Max 2.52O "In o Mean 102 Ae-ft 74,050

Water year 1950-51: Max 1,040 "In o Mean 72.0 Ae-ft 52,140

, Peak discharge (base. 200 efsl. Feb. 14 (7 p.m.) 1,440 efs (5.16 ft); Mar. 5 (11 a.m.) 425 efs 

(4.05 ft); Mar. 18 (8 p.m.) 1,590 efs (5.26 ft); Mar. 22 (3 a.m.) 1,030 efs (4.83 ft); Mar. 29 (2 a.m.)

* Discharge measurement made on this day.

** Field estimate made on this day.

e Stage-discharge relation indefinite; discharge estimated on basis of 1 discharge measurement and 

weather records.
CRAB CREEK BASIN 307

Park Lake near Coulee City, Wash.

Location. Lat 47°35', long. 119°24>, In N>£ sec. 14, T. 24 N., R. 27 E., or southeast 

shore 1 mile upstream from outlet and 5j miles southwest of Coulee City.

Records available. March 1938 to September 1951 (fragmentary).

Gage.--Staff gage read two or three times a month. Datum of gage Is at mean sea level 

(Bureau of Reclamation benchmark).

Extremes. 1938-51: Maximum water-surface elevation observed, 1,096.44 ft Feb. 9, 1950; 

minimum observed, 1,094.17 ft Sept. 30, 1939.

Maximum elevation known, 1,101.3 ft (from well-defined alkali line at gage), date 

of occurrence unknown.

Remarks. Some diversion from tributary for Irrigation.

Elevation, In feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

28

27

28

29

30

31

Oct.

_

_

_

95.37

.

-

_

-

95.39

_

_

_

-

_

_

_

_

95.40

-

_

_

_

-

_

_

_

_

_

-

Nov.

_

_

_

-

 95.50

-

.

-

.

_

_

_

-

_

_

_

-

95.45

_

_

_

_

-

_

_

95.52

-

Dec.

_

_

95.59

_

-

.

-

_

_

_

_

-

_

_

_

_

95.71

_

_

_

_

-

_

_

_

_

_

-

Jan.

_

95.62

-

_

-

95.88

-

_

_

_

_

-

_

_

95.86

_

_

_

_

-

.

_

_

_

-

Feb.

_

96.07

_

-

_

-

_

_

^

-

_

_

_

95.86

,

_

_

_

-

_

_

_

_

-

Mar.

_

95.66

_

-

_

-

_

_

_

-

_

_

_

95.80

_

_

_

_

-

_

95.94

_

-

Apr.

_

95.90

_

-

_

-

_

_

_

-

_

_

_

95.80

_

_

_

_

-

_

^

_

-

 ay

95.72

-

_

95.80

_

-

_

_

_

95.80

_

_

_

-

95.75

_

_

_

-

_

_

_

_

-

June

_

95.68

_

-

_

-

_

_

_

-

_

_

_

95.58

_

_

_

_

-

_

_

_

-

July

_

95.50

95.60

_

-

_

_

_

-

_

_

_

95.43

_

_

_

_

-

_

_

_

-

Aug.

_

-

95.33

95.10

I

-

_

_

-

_

_

95.26

_

_

_

_

-

_

_

_

-

Sept.

_

95.47

_

-

I

-

_

_

-

_

_

95.40

95.43

_

_

-

_

_

_

-

Note. Add 1,000 ft to obtain elevation above mean sea level.
308 CRAB CREEK BASIN

Park Creek below Park Lake, near Coulee City, Wash.

Location.--Lat 47°34', long. 119°25', in SWj sec. 15, T. 24 N., R. 27 E., on left bank 

100 ft upstream from mouth, 500 ft downstream from Park Lake and §\ miles southeast 

of Coulee City.

Drainage area. About 400 sq mi (revised). 

Records available. July 1945 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,091.52 ft above mean sea level (Bureau 

of Reclamation benchmark).

Average discharge. 6 years, 6.40 cfs.

Extremes. Maximum discharge during year. 47 cfs Feb. 9 (gage height, 2.71 ft); minimum, 

0.8 cfs Aug. 29 (gage height, 1.77 ft).

1945-51: Maximum discharge, that of Feb. 9, 1951; maximum gage heigh4;, 3.05 ft 

Jan. 28, 1950 (backwater from ice); minimum discharge not determined, probably less 

than 0.1 cfs during period Aug. 17 to Sept. 21, or Oct. 1-17, 1945 (gage height, less 

than 1.4 ft).

Remarks. Records fair except those for period of ice effect, which are poor. Some diversion during summer months for irrigation above Park Lake. Occasional regulation 

by operation of fish screen at outlet of Park Lake.

Rating table, water year 195O-51, except period of Ice effect (gage 

height. In feet, and discharge, in cubic feet per second)

1.8

1.9

2.0

2.1

1.0 

1.8 

3.0 

4.8

2.2

2.3

2.4

2.5

7.1

10.5

17

26

Discharge, In cubic feet per second, water year October 1950 to Septembe- 1951

Day

1 

2

3

4

5

6

7

8

9

1O

U 

1Z

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

5.2

5.0

4.8

5^75

5.4

5.4

5.6

5.4

5.4

5.6

*6.1 

6.1

6.6

6.8

6. ft

6.6

6.6

6.8

7.1

7.4

6.6

6.6

6.8

7.4

7.4

8.0

8.0

8.0

8.3

8.6

8.6

204.0

6.58

405

Nov.

8.9 

8.6

8.6

8.3

8.3

8.6

8.6

8^0

8.3

8.3

9.3

10

9.3

9.3

9.6

9.6

9.6

9.6

10

10.5

9.3

8.9

8.6

8.9

10.5

11

11

10.5

*10. 5

11

-

281.5

9.38

558

Dec.

10 

7.1

11.5

4.4 i»o

1.0

1.7

1.2

1.2

8.6

16 

15.5

15.5

13

13

14.5

14.5

14.5

14.5

14.5

15.5

14.5

14.5

14

13

13

12.5

12

12

12

12

338.2

10.9

671

Jan.

12 

12

12

6.4

2.7

2.4

2.4

2.7

*2.8

3.1

3.2 

3.2

3.4

3.2

9.2

17

16

15.5

15.5

14.5

14.5

14.5

14.5

14.5

14

10.5

b5.0

b3.0

b2.3

b2.2

b2.1

256.3

8.27

508

Feb.

b2.0 

b2.0

b2.0

b2.1

b2.2

b2.7

b4.0

7.1

16.2

20

20 

8.3

15.5

20

21

19.5

18

18

18

*18

18

17

17

16

15.5

15.5

14

15.5

_

-

-

365.1

13.0

724

Mar.

15.5 

8.9

15.5

14.5

14.5

14.5

14.5

14.5

8.6

4.4

lot?

18

18

18

18

18

18

18

19

18

7.7

3.6

4.2

14

24

22

*20

16

14

15.5

443.5

14.3

880

Apr.

15.5 

15.5

14.5

14.5

13

13

14.5

14

13

13

13 

13

12.5

3.2

8.7

12

12.5

7.7

5.4

11

11

11

10.5

10.5

10.5

10

9.6

10

9.6

9.3

-

341.5

11.4

677

May

8.9 

8.9

8.9

8.9

8.9

8.6

9.6

10

9.6

10

10,1 

10

10

10

no

10

9.6

9.3

9.3

9.3

9.3

9.3

9.3

8.9

8.6

8.6

8.0

7.1

6.1

3,0

3.6

272.1

8.78

540

June

5.4 

7.4

7.4

4.2

4.4

8.6

8.9

9.3

9.6

10

'fcf

9.6

9.3

8.9

8.6

8.3

7.7

6.8

6.3

6.6

6.3

4.4

2.4

2.7

1.9

1.5

27T

5.4

5.4

-

200.1

6.67

397

July

5.0 

3.2

2.7

1.8

1.5

*3.8

6.6

673

6.3

6.1

5.9 

5.6

4.8

5.6

4.4

2.6

1.8

1.7

1.7

1.3

1.2

276

2.1

1.5

1.4

1.5

1.5

1.7

2.2

2.2

1.4

98.0

3.16

194

Aug.

1.9 

1.4

1.2

1.2

1.2

1.0

*1.3

1.4

1.2

1.0

1.1 

1.0

1.3

1.3

1.4

1.3

1.2

1.1

1.4

1.0

1.0

1.0

1.5

1.1

1.0

1.3

1.3

1.0

.9 iTo

1.1

37.1

1.20

74

Sept.

B1.2

1.6

1.6

1.5

3.4

9.3

9.3

8.0

7.4 

6.3

2.1

1.4

1.2

1.2

1.2

1.3

1.5

1.6

*1.4

1.4

2.5

8.3

8.0

7.1

5.9

1.9

3.0

9^6

112.6

3.75

223

Calendar year 1950: Max 23 Mln 0.6 Mean 7.43 Ac-ft 5,38O

Water year 1950-51: Max 24 Mln 0.9 Mean 8. OS Ac-ft 5.85O

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
CRAB CREEK BASIN 309

Blue Lake near Coulee City, Wash.

Location. Lat 47°34', long. 119°26', in SE^ sec. 16, T. 24 N., R. 27 E., on right shore 2| miles upstream from outlet and 7 miles southwest of Coulee City.

Records available. March 1938 to September 1951 (fragmentary).

Gage. Staff gage read two or three times a month. Datum of gage is at mean sea level 

(Bureau of Reclamation benchmark).

Extremes. 1938-51: Maximum elevation observed, 1,093.42 ft Feb. 20, 1951; minimum observed, 1,090.50 ft Nov. 10, 1939.

Maximum elevation known, 1,101.2 ft (from alkali line at gage); date o." occurrence 

unknown.

Remarks.--Some diversion from tributaries for irrigation.

Elevation, In feet, water year October 1950 to September 1951

Day

4

b

6

7

9

19

20

21

22

23

24

25

26

27

28

30

31

Oct.

.

91.95

_

-

-

92.22

_

_

_

_

-

.

.

_-

Nov.

_

-

92.65

-

92.96

_

_

_

-

_

_

93.14-

-

Dec.

_

93.11

_

-

-

93.27

_

_

_

_

-

_

-

_

_

-

Jan.

93.22 -

_-

93.12

_

_

_

_

-

_

_

_

_

-

Feb.

_

93.28

_

-

-

93.42

_

_

_

_

-

_

_

_

_

-

Mar.

_

93.12

_

-

-

93.14

_

_

_

-

_

93.23

_

_

-

Apr.

_

93.12

_

-

-

92.94

.

_

_

_

-

_

_

_

_

-

Bay

92.97

-

_

-

-

-

93.01

_

_

-

_

-

_.

_

-

June

.

92.92

_

-

-

92.88

_

_

_

-

_

_

_

_

-

July

-

92.77

92.79

-

-

92.65

_

_

_

_

-

.

_

-

_

_

-

Aug.

_

-

92. 45

92.43

-

,92.22

_

_

_

_

-

_

_

-

_

-

Sept.

_

92.14

_

-

-

92.12

92.17

«

_

_

-

_

_

-

_

-

Note. Add 1,000 ft to obtain elevation above mean sea level.
310 CRAB CREEK BASIN

Lenore Lake near Soap Lake, Vfesh.

Location. Lat 47°31', long. 119°30', in SWj sec. 1, T. 23 N., R. 26 E., on east shore 

$2 miles upstream from outlet and 9 miles north of town of Soap Lake.

Records available. July 1936, March 1938 to September 1951 (fragmentary).

Qage.--Benchmark or reference point; readings made two or three times per moith. Prior 

To March 21, 1950, staff gage at same site. Datum of gage and reference points is mean 

sea level (Bureau of Reclamation benchmark).

Extremes.--1936. 1938-51: Maximum elevation observed, 1,085.79 ft May 15, 1951; minimum, 

observed, 1,076.65 ft Oct. 26, 1940.

Maximum elevation known, 1,092.2 ft (from well-defined alkali line at gage); date 

of occurrence unknown.

Remarks. Some diversion from tributaries for Irrigation.

Elevation, In feet, water year October 1950 to September 19S1

Day

4

5

6

7

15

16

18

19

20

21

23

24

25

26

28

31

Oof.

_

82.94

_

-

-

_

82.96

.

_

_

-

_

-

-

_

-

Nov.

_

-

83.00

-

-

_

_

82.98

_

_

_

-

_

_

_

83.05

_

-

Dec.

_

83.15

_

-

-

_

83.44

_

_

_

-

_

_

_

_

_

-

Jan.

83.70

-

_

-

-

83.99

_

_

-

_

_

_

_

-

Feb.

_

84.19

_

-

-

_

84.47

_

-

_

_

-

_

-

Mar.

_

84.83

_

-

-

_

85.25

_

-

_

_

85.45

-

Apr.

_

85.47

_

-

-

_

85.63

_

-

85.67

_

_

-

May

85.72

_

85.77

85.79

_

-

85.77

-

_

_

-

June

_

85.75

_

-

-

_

85.65

_

-

_

_

_

-

July

_

85.49

85.55

-

_

85.32

_

-

_

_

-

Aug.

_

-

84.93

84.95

-

_

84.68

_

-

_

_

_

-

Sept.

_

84.54

_

-

-

_

84.27

84.37

-

_

_

-

Note. Add 1,000 ft to obtain elevation above mean sea level.
CRAB CREEK BASIN 311

Soap Lake near Soap Lake, Wash.

Location. Lat 47°25', long. 119'30', in SE^ sec. 12, T. 22 N., R. 26 E., on east shore 

1} miles upstream from outlet and 2 miles north of town of Soap Lake.

Records available. May to August 1936, March 1938 to September 1951 (fragmentary).

Qage. Reference point: readings made two or three times a month. Elevation of reference 

point is 1,076.02 ft above mean sea level (Bureau of Reclamation benchmark). Mar. 21, 

1950, to Feb. 1, 1951, reference point 0.06 ft lower. All readings have bf.en reduced 

to elevations above mean sea level. Prior to Mar. 21, 1950, staff gage at same site 

and at sea level datum.

Extremes. 1936, 1938-51: Maximum elevation observed, 1,077.03 ft June 5, 1951; minimum 

 oEserved, 1,070.87 ft Oct. 21, 1939.

Maximum elevation known, 1,083.1 ft (from well-defined alkali line at gage); date 

of occurrence unknown.

Remarks. Some diversion from tributaries for irrigation.

Elevation

Day

4

5

6

7

IS

17

18

20

21

23

24

25

26

27

28

29

30

31

Oct.

74.86

_

_

_

_

75.00

_

_

-

_

,.

-

Nov.

-

75.15

_

_

_

75.26

_

_

-

_

73.35

-

Dec.

75.44

_

_

_

_

75.73

_

_

-

_

_

-

in feet, water year October 1950 to September 1951

Jan.

75 91

-

_

_

75 95

_

76.07

-

_

_

-

Feb.

76.25

_

_

_

_

76.40

-

_

_

-

Mar.

76.52

_

_

_

_

76.73

-

76.80

-

Apr.

76.88

76.86

_

_

76.84

-

-

Hay

76 87

-

.

76.96

77.01

-

77.01

-

_

_

-

June

77.03

.

_

.

_

76.96

-

_

_

-

July

76.87

76.96

_

..

76.77

-

_

 .

-

Aug.

-

76.57

76.10

.

_

76.36

-

_

_

-

Sept.

76.37

.

_

_

_

76.27

76.26

-

_

_

-

Note. Add 1,000 ft to obtain elevation above mean sea level.

288995 O - 54 - 21 288995
312 CRAB CREEK BASIN

Rocky Ford Creek near Ephrata, Wash.

Location.--Lat 47°18'20", long. 119°26'50", In NV£NV£ sec. 21, T. 21 N., R. 27 E., on 

right bank 5 miles east of Ephrata and 5^- miles upstream from mouth.

Drainage area. 490 sq mi, of which only 12 sq mi contribute directly to surface runoff.

Records available. June 1909 to April 1910, July to December 1911, August 1942 to September 1951.FfTor to January 1910, published as Upper Crab Creek near Ephrata.

Gage. Water-stage recorder. Datum of gage is 1,064.87 ft above mean sea level (Bureau 

of Reclamation benchmark). June 1909 to December 1911, staff gages at sites 4j to Similes dovmstream at different datums. Aug. 19, 1942, to May 23, 1945, inter-stage 

recorder at site 3f miles dovmstream at datum 1,059.51 ft above mean sea level (Bureau 

of Reclamation benchmark).

Average discharge. 9 years (1942-51), 64.9 cfs.

Extremes. Maximum discharge during year, 108 cfs June 28 (gage height, 2.48 ft); minimum, 

6T~cTs Jan. 28, Mar. 15 (gage height, 1.89 ft).

1909-11, 1942-51: Maximum discharge, 143 cfs Apr. 23, 1949 (gage height, 2.84 ft); 

minimum, 20 cfs Aug. 13-18, 1911.

Remarks. Records good. Some regulation by temporary dams for irrigation and by fish 

hatchery. Diversions for irrigation are minor part of flow past gage.

Rating table, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

1.9 

2.2 

2.5 110

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

96

96

96

95

95

95

95

95

94

*94

93

93

93

93

92

92

91

91

91

91

91

90

89

89

89

89

88

88

88

87

57

2,846

91.8

5,640

Nov.

87

57

87

86

85

85

85

84

84

84

84

84

84

83

83

83

82

82

82

82

82

82

81

81

81

80

80

79

7?

79

-

2,487

82.9

4,930

Dec.

79

Te

78

78

*78

78

77

77

77

77

77

77

76

76

75

75

75

74

74

74

74

73

73

73

73

72

72

72

72

72

72

2,328

75.1

4,620

Jan.

71

fi

70

70

70

70

70

70

70

70

69

69

*68

68

69

68

68

68

68

68

68

68

68

68

68

67

67

67

67

67

67

2,127

68.6

4,220

Feb.

67

67

67

67

67

67

67

67

67

67

67

66

66

66

66

66

66

66

66

67

67

67

67

67

67

*67

67

67

-

-

1,868

66.7

3,710

Mar.

61

67

67

67

67

67

67

68

67

67

67

67

67

67

67

67

67

67

67

67

67

67

67

68

68

68

*68

69

69

69

69

2,090

67.4

4,150

Apr.

70

70

72

72

73

74

75

76

77

78

79

80

81

82

82

84

84

85

85

86

87

88

88

89

91

91

92

95

94

94

-

2,474

82.5

4,910

May

95

95

95

96

97

97

99

98

98

98

99

99

99

99

99

*99

99

99

99

99

99

99

99

99

99

99

99

99

99

100

100

3,049

98.4

6,050

June

100

T5o

100

102

102

101

101

100

100

100

101

101

101

101

101

101

100

100

101

101

101

101

102

102

102

102

102

102

102

103

3,033

101

6,020

July

10,3

10.3

10.3

10?

121

10.3

10.3

*103

10?

102

102

99

98

9^

97

97

97

96

96

96

96

96

96

96

97

97

97

97

96

97

96

3,067

98.9

6,080

Aug.

96

96

96

96

96

96

96

96

»96

95

95

95

95

95

95

94

94

94

94

93.

93

93

93

93

93

93

93

93

95

94

93

2,929

94.5

5,810

Sept.

93

93

92

92

92

92

92

93

92

92

92

92

91

91

91

91

91

91

91

90

90

*90

89

89

89

89

"8888

89

89

-

2,724

90.8

5,400

Calendar year 1950: Max 135 Mln 58 Mean 96.1 Ac-ft 69,580

Water year 1950-51: Max 104 Mln 66 Mean 85.0 Ac-ft 61,540

Discharge measurement made on this day.
CRAB CREEK BASIN 313

Moses Lake at Moses Lake, Wash.

Location. Lat 47°06', long. 119°20', in NE£ sec. 32, T. 19 N., R. 28 E. , near west shore 

on downstream side of bridge on State Highway 18, ij miles upstream from outlet and 

3 miles southwest of town of Moses Lake.

Drainage area. About 2,970 sq mi.

Records available. June 1909 to September 1914, November 1936 to September 1945 (fragmentary), October 1945 to September 1951. Published as "at Neppel" 1912-14.

Bage. Water-stage recorder. Datum of gage is at mean sea level (Bureau of Reclamation 

Fenchmark). Prior to Apr. 3, 1910, staff gage 1 mile northeast across lake at different datum. Apr. 3, 1910, to Sept. 30, 1914, Nov. 19, 1936, to Nov. 24, 1944, staff 

gages 3i miles northeast across lake at Parker Horn at various datums.

Extremes. Maximum elevation during year, 1,048.28 ft Mar. 23; minimum recorded, 1,046.17 

ft Sept. 27, 28.

1909-14, 1936-51: Maximum elevation, 1,048.29 ft Mar. 10, 1950; minimum observed, 

1,038.17 ft Aug. 27, 1910.

Remarks. Elevation controlled by dam at lake outlet. Many small diversions for irrigatlon.

Elevation, in feet, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

46.32

46.32

46.33

46.34

46.37

46.39

46.42

46.46

46.46

46.49

46.52

46.54

46.55

46.57

46.60

46.61

46.63

46.66

46.66

46.69

46.71

46.73

46.74

46.75

46.77

46.78

46.78

46.80

46.83

46.86

46.87

Nov.

46.88

46.90

46.91

46.93

46.94

46.94

46.97

46.98

46.98

46.99

47.02

47.03

47.03

47.04

47.03

47.05

47.07

47.08

47.10

47.10

47.12

47.14

47.15

47.16

47.18

47.20

47.21

47.23

47.25

47.28

-

Dec.

47.30

47.30

47.33

47.35

47.36

47.38

47.39

47.40

47.42

47.43

47.44

47.45

47.48

47.49

47.51

47.54

47.57

47.58

47.58

47.60

47.61

47.62

47.63

47.64

47.65

47.66

47.67

47.68

47.68

47.68

47.68

Jan.

47.69

47.69

47 . 70

47.72

47.73

47.74

47.74

47.75

47.76

47.78

4.7.80

47 .'82

47.83

47.83

47.84

47.84

47.86

47.87

47.88

47.89

47.90

47.85

47.82

47.82

47.83

47.84

_

-

_

-

Feb.

_

_

_

_

-

_

46.61

46.61

46.63

46.66

46.69

46.71

46.73

46.78

47.05

47.28

47.40

47.57

47.72

47.82

47.95

47.94

47.92

47.88

47.86

47.82

47.78

47.76

_

_

-

Mar.

47.72

47.69

47.64

47.61

47.57

47.60

47.63

47.67

47.70

47.73

47.75

47.77

47.78

47.73

47.67

47.61

47.56

47.58

47.65

47.85

47.92

48.05

48.23

48.27

48.23

48.19

48.13

48.10

48.07

48.05

48.01

Apr.

47.95

47.88

47.81

47.74

47.65

47.57

47.48

47.48

47.48

47.48

47.49

47.50

47.51

47.49

47.48

47.47

47.47

47.50

47.54

47.57

47.58

47.58

47.60

47.62

47.65

47.69

47.72

47.78

47.85

47.88

May

47.89

47.92

47.96

47.98

48.02

48.04

'48.10

48.10

48.07

48.03

48.03

48.01

47.94

47.90

47.91

47.90

47.91

47.91

47.91

47.89

47.89

47.88

47.85

47.83

47.80

47.79

47.75

47.71

47.67

47.65

47.62

June

47.59

47.58

47.58

47.63

47.67

47.68

47.69

47.67

47.67

47.67

47.67

47.67

47.67

47.67

47.67

47.65

47.64

47.62

47.60

47.58

47.56

47.54

47.51

47.49

47.47

47.47

47.45

47.42

47.41

47.38

-

July

47.36

47.35

47.34

47.32

47.32

47.31

47.28

47.27

47.26

47.23

47.26

47.18

47.15

47.14

47.12

47.10

47.09

47.04

47.01

46.98

46.97

46.95

46.93

46.90

46.87

46.85

46.83

46.80

46.77

46.75

46.74

Aug.

46.72

46.69

46.67

46.64

45.62

46.60

46.56

46.54

46.52

46.50

46.47

46.44

46.43

46.41

46.40

46.39

46.37

46.36

46.35

46.34

46.33

46.31

46.28

46.27

46.26

46.25

46.24

46.23

46.26

46.27

46.27

Sept.

46.27

46.28

46.28

46.28

46.28

.46.28

46.28

46.27

46.27

46.26

46.25

46.25

46.25

46.25

46.25

46.24

46.24

46.25

46.24

46.21

46.21

46.21

46.20

46.19

46.19

46.18

46.17

46.17

46.18

46.20

-

Note. Add 1,000 ft to obtain elevation above mean sea level.
314 CRAB CREEK BASIN 

Crab Creek near Warden, Wash.

Location. Lat 46°58'45", long. 119°15'45", In NE£ sec. 11, T. 17 N., R. 28 E., on right 

 bank a quarter of a mile downstream from 0"Sullivan Dam, 0.4 mile downstream from Lind 

Coulee and 10 miles west of Warden.

Drainage area. About 4,150 sq ml, of which 500 sq ml In the vicinity of Soap Lake Is

ably noncontrlbutlng.

Records available. June 1909 to June 1912 (fragmentary), October 1942 to September 1951. 

Published as Lower Crab Creek near Warden 1909-12.

Gage. Water-stage recorder. Datum of gage Is 887.98 ft above mean sea level (Bureau of 

^Reclamation benchmark). Prior to June 20, 1912, staff gages at several sites within

5 miles downstream at various daturas. October 1942 to September 1950, water-stage

recorder at site 0.4 mile downstream at different datum.

Average discharge. 8 years (1942-50), 49.1 cfs.

Extremes. Maximum discharge during year, 472 cfs Apr. 11 (gage height, 3.09 ft), was

probably higher sometime during period of no gage-height record; mlnlmuTi not determined, 

occurred during period of doubtful gage-height record.

1909-12, 1942-51: Maximum discharge, 3,000 cfs Feb. 7, 1943 (gage height, 4.25 ft, 

datum then In use), from rating curve extended above 20 cfs on basis of slope-area 

measurement of flood In Llnd Coulee; no flow for short Intervals In Jun<? and July 

1948, when water was shut off during construction of 0'Sullivan Dam.

Remarks. Records fair except those below 20 cfs, which are poor. Many snnll diversions 

for Irrigation. Flow regulated by O'Sulllvan Dam and Moses Lake.

Rating table, period Apr. 11 to Sept. 30, 1951 (gage height, In 

feet, and discharge. In cubic feet per second)

0.0 

.1 

.2 

.3 

.4 

.5

0.5

1.3

2.5

4.3

6.8

10

0.7 

1.0 

1.5 

2.0

3.1

20

44

105

190

475

Discharge, In cubic feet per secondt water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

t!4.5

Nov. Dec.

t31

Jan.

t35

Feb. Mar. Apr.

t464

-

-

_

.

-

I

469

*466

457

448

439

433

427

409

382

355

325

300

280

245

208

178

86

16.5

8.8

4.7

_

-

Hay

2.1 

d.l

dTT 

d.l

d.l

d.l

d.l

d.l

1.4 

1.7

1.7

1.5

1.4

1.4

11

|0

5?9

29

29

29

30

30

3P

12

d.4

d.l

d.l

d.l

d.l

d.l

dl.O

272.8

8. SO

541

June

tt

1!31

30

26

21

21 

21

21

20

20

20

21

21

21

20

20

20

20

20

20

19.5

19.5

19.5

19.5

19.5

19.5

19

660.0

22.0

1,310

July

ft

19 

19.5

19.5

19

19

*19.5

19.5 

19.5

19.5

21

21

21

21

22

23

24

54

24

24

24

24

24

24

»24

24

24

24

24

24

677.0

21.8

1,340

Aug.

24 

54

24 

24

24

24

24

*24

ft

25

25

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

24

748

24.1

1,480

Sept.

ft

24 

24

24

24

24

24

24

*24

24

24

24

23

23

23

23

22

22

22

23

23

*23

23

22

22

22

22

22

£2

-

694

23.1

1,380

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ae-ft

* Discharge measurement made on this day.

t Result of discharge measurement.

d Doubtful gage-height record; discharge Is estimated flow through bypass valve In O'Sulllvan Dam.

Note. No gage-height record Aug. 28 to Sept. 9, Sept. 11-19, 24-31, discharge Irterpolated.
CRAB CREEK BASIN 315

Crab Creek near Smyrna, Wash.

Location. Lat 46°50'35", long. 119°36'25", In SE£ sec. 30, T. 16 N., R. 26 E., on left 

bank at highway bridge 2£ miles east of Smyrna.

Drainage area. About 4,500 so. ml, of which about 500 so. ml In the vicinity of Soap Lake 

is probably noncontrlbutlng (revised).

Records available. August 1942 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 530.83 ft above mean sea level (Bureau of 

Reclamation benchmark).

Average discharge.--9 years, 46.8 cfs.

Extremes. Maximum discharge during year. 620 cfs Feb. 10 (gage height, 4.9f ft); minimum, 

1.0 cfs July 29 (gage height, 0.95 ft).

1942-51: Maximum discharge, 3,300 cfs Feb. 8, 1943 (gage height, 7.5 ft, estimated 

by observer), from rating curve extended above 1,000 cfs; possibly no flow at times 

during summer of 1947.

Remarks. Records good except those below 10 cfs, which are fair, and those for periods 

of Ice effect or no gage-height record, which are poor. Many diversions above station 

for Irrigation. Some regulation by 0'Sullivan Dam, Moses Lake (see p. 313) and other 

headwater lakes.

Rating tables, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 10 Feb. 11 to Sept. 30

2.0 7.4

2.2 16.5

2.6 45

3.O 89

3.5 170

4.0 280

4.8 540

0.9 

1.1 

1.3 

1.5 

1.7

2.0 

2.3 

2.6 

3.0

Kote. Same as preceding 

table above 3.O ft.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

36

27

38

39

30

31

Total

Mean

Ac- ft

Oct.

11 

1O.5

1O

13.5

17

18.5 

19

20

21

2T

19.5

18

17

11.5 

13.5

14

12.5

*14

13

12

12

10.5

10.5

10.5

10.5

11.5

11

11.5

14.5

19.5

18.5

446.0

14.4

885

Nov.

14 

14

13.5

14

14.5

14 

13.5

13

12.5

12.

15

42

7O

it

43

31

36

23

25

27

26

27

3O

31

32

32

32

30

32

-

847.0

28.2

1,680

Dec.

37 

32

27

31

34

 33 

39

38

39

41

39

37

36

35

31

27

25

22

19.5

19

4l~ 18.5

62

£5

64

52

41

37

35

34

35

1,126.0

36.3

3,230

Jan.

34 

36

43

39

37

29 

29

32

37

36

35

39

 39

43 

42

43

40

39

35

28

39

48

43

65

97

102

b66

b40

b23

b23

b24

1,295

41.8

2,57O

Feb.

at

a28

a28

a27

a27 

a33

alOO

a400

540

421

343

295

316 

322

265

230

319

263

115

158

129

108

147

216

255

*280

295

_

-

-

5,711

204

11, 330

Mar.

304 

301

310

322

295

343 

298

395

258

258

216

198

19O m289

298

316

325

331

331

328

343

325

316

322

382

382

397

415

421

9,495

3O6

18, 830

Apr.

427 

 439

451

451

454

468 

480

488

484

472

468

468

460

451 

448

448

430

439

412

406

385

370

343

322

395

255

228

232

203

154

11,830

394

23,460

May

126 

1O8

59

41

36

34 

34

36

32

30

32

33

30

28 

28

28

*25

24

34

25

25

25

34

24

23

20

15

12

11.5

11.5

U.

1,015.0

32.7

2,010

. June

9.0 

8.8

12

20

28

II

35

21

17

16

15

14

13 

13

11.5

11

11

11

9.9

8.0

5.1

4.2

4.6

4.9

4.8

4.4

4.1

4TS

4.6

-

373.5

13.4

741

July

4 i

4.8

4.9

5.3

4*

5.1

4.3

5.0

4.7

4.3

4.C

3.5 

3.1

3.9

4.6

4.O

3.0

3.4

3.7

4.1

4.1

3.5

3.1

3.1

1.9

2.1

1*2.

1.4

2.0

12O.5

3.89

239

Aug.

2.6 

2.8

3.2

3.6

3.8

3.3 

4.1

 5.1

5.4

4.4

4.3

4.3

2.4

H

2.4

2.7

2.8

2.7

2.9

2.9

2.7

3.0

3.5

4.2

4.6

4.6

4.8

5.8

6.6 l*o

116.0

3.74

330

Sept.

6.6 

6.3

6.2

6.2

6.2

6.0 

5*9

6.3

6.3

5.9

7.0

7.3

7.7

7.2 

7.2

7.2

7.5

7.7

7.8

8.O

8.2

 8.6

8.6

8.8

9.0

9.7

1O

9.9

10.5

11

230.8

7.69

458

Calendar year 1950: Max 750 Jttn 0.1 Mean 129 Ac-ft 93, ISO

Water year 1950-51: Max 540 Mln 1.2 Mean 89.3 Ac-ft 64,660

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on b as Is of records for nearby stations.

b Stage-discharge relation affected by ice.
316 YAKIMA RIVER BASIN

Yakima River near Martin, Wash.

Location. Lat 47°19ilO", long. 121°20'10", in NE£ sec. 12, T. 21 N., R. 11 E., on left

bank 800 ft downstream from dam at outlet of Keechelus Lake, 3j miles northwest of

Martin, and 12 miles upstream from Easton. 

Drainage area. 55.8 sq mi (revised). 

Records avallable.--October 1903 to September 1951. 

Gage. Water-stage recorder and masonry channel. Altitude of gage is about 2,450 ft (from

topographic map). Prior to July 20, 1923, staff gages at several sites within 2 miles

of present site at various datums.

Average discharge. 47 years (1904-51), 328 cfs (adjusted for storage since January 1906). 

Extremes. Maximum discharge during year, 1,220 cfs Aug. 18-21 (gage height, 8.21 ft);

minimum, 2.8 cfs Nov. 17; minimum gage height, 2.13 ft Nov. 20.

1903-51: Maximum discharge, 7,370 cfs Mar. 26, 1915, when temporary crib dam was

washed out; practically no flow when gates in Keechelus Lake Dam are closed, 

Remarks. Records good. Plow regulated by Keechelus Lake (see p. 336). Keechelus Lake

spillway discharge, computed from reservoir elevations and spillway rating, bypasses

gage and is added to flow at station. Spill occurred June 5 to July 9. 

Cooperation. Gage-height record collected in cooperation with, and 6 discharge measuremerits furnished by Bureau of Reclamation.

Rating table, water year 1950-51, except period of combined flow at gige 

and over spillway (gage height, In feet, and discharge. In 

cubic feet per second)

(Shifting-control method used Nov. 15-18, July 9 to Sept. 30)

2.0

2.1

2.2 

2.4 

2.7 

3.0

1.8

4.5

7.8

16

31

52

3.5 

4.0 

5.0 

6.0 

7.5

102

165

325

540

992

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

Z

3

t

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

(t)

Oct.

761 

746

746

746

761

617

552

552

552

364

94

370

*552

552

552

552

552

552 

552

552

552

552

552

552

552

552

552

552

552

632

761

17,638

569

34,980

-12,560

Nov.

808 

808

808

808

808

824

923

992

?9?

992

992

992

992

992

*429

3.3

3.6

B3.3

4.5

7.4

5.4

6.4

7.1

5.4

8.1

12

12

12

-

L3,256.9

442

26,290

+7,040

Dec.

»

12

110

287

363

403

435

*435

435

435

435

435

435

435

435

435

435 

435

435

435

435

446

446

457

457

457

457

457

457

457

11,815

381

23,430

+11,270

Jan.

m528

528

528

- 528

528

528

528

528

632

688

688

688

688

*673

688

688 

688

688

688

688

688

688

688

688

688

688

688

673

688

19,534

630

38,750

-21,880

Feb.

632 

515

515

515

435

298

200 *169

171

171

172

230

373

528

632

659

f55

659 

604

578

578

578

578

578

578

578

578

578

-

-

-

13,339

476

26,460

+6,920

Mar.

578 52"S

503

503

503

446

414

414

414

414

414

414

*414

403

414

414

414

403 

354

307

239

200

200

200

200

200

156

132

132

55

Zi8

10,389.8

335

20,610

-10,390

Apr.

ft

7.8

7.8

8.1

8.1

8.1

8.5

8.5

8.5

8.8

8.8

8.8

9.2

9.2

9.2

9.6

9.6 

9.6

9.6

*9.6

9.6

9.6

9.2

10.5

10

10

10

10

103

364.1

12.1

722

+29,610

May

157 

*186

200

239

264

264

264

186

153

153

82

21

8.8

8.8

8.8

8.8

8.5

8.5

8.1

8.1

24775

7.8

7.8

8.1

7.8

8.1

7.8

8.1

8.1

72

2,388.6

77.1

4,740

+52,960

June

M99

100

*162

445

642

682

708

735

779

793

807

807

880

851

735

668 

601

576

564

551

540

516

504

479

456

434

400

389

-

16,099

537

31,930

+5,790

July

389 

367

346

316

335

339

290

303

282

316

344

403

491

565

565

591

£04

TO? 

»604

604

60*

604

604

604

604

40?

28C

28C

Aug.

|f

280

280

280

280

280

280

280

280

280

280

280

280

280

571

992

1.180 1,180

1,180

*1,180

1,180

1,180

1,140

1,140

1,100

1,060

992

28C 923

28C 923

280 856

13,480 20,977

43f 677

26,740 41,610

-17,94C -38,300

Sept.

80S 

776

776.

776

776

761

746

731

716

716

716

716

716

716

731

746

»746

776 

806

824

824

808

824

856 afl

80S

746

731

645

604

22,747

758

45,120

-42,180

Adjusted for change in lake contents

Mean

Cfsm

In.

Ao-ft

36E

6.54

7.53

22,42C

560

10.0

11.20

33,330

564

10.1

11.66

34,700

274

4.91

5.67

16,870

601

10. £

11.22

33,380

166

2.97

3.43

10,220

510

9.14

10.19

30,330

938

16.8

19.39

57,700

634

11.4

12.67

37,720

14S

2.56

2.9f

8,80C

53.8

0.964

1.11

3,310

49.4

0.885

0.99

2,940

Observed

Calendar year 1950: 

Water year 1950-51:

Max

Max

1,870 

1,180

Mln 

Min

3 

3

.1 

.1

Mean 

Mean

454 

444

Ac -ft 

Ac-ft

328 

321

,600 

,400

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

459 

403

Cfsm 

Cfsm

a,

7,

.23

.22

In. 

In.

111.73 

98.02

Ao-ft 

Ac-ft

332 

291

,500 

,700

* Discharge measurement made on this day.

t Change In contents in Keechelus Lake, In acre-feet.

Note. Discharge June 5 to July 9 is combined flow at gage and over spillway.
YAKMA RIVER BASIN 317

Kachess River near Easton, Wash.

Location. Lat 47°15'30", long. 121°11'50", in NE£ sec. 3, T. 20 N., R. 13 E., on left

bank three-quarters of a mile downstream from Kachess Lake and 2 miles northwest of

Easton.

Drainage area. 63.6 sq mi (revised). 

Records available. October 1903 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,215 ft (from topographic map). Prior 

~^o July 22, 1913, staff gage and July 22, 1913, to Aug. 14, 1916, water-stage recorder

at site a quarter of a mile upstream at different datum. Aug. 15, 1916, to Oct. 8,

1927, water-stage recorder half a mile downstream at different datum. 

Average discharge. 48 years, 285 cfs (adjusted for storage since October 1905). 

Extremes.--Maximum discharge during year, 1,320 cfs July 17-19 (gage height, 5.45 ft);

minimum not determined, probably occurred during period of no gage-height record in

September; minimum daily, 0.2 cfs Sept. 13-24, 26, 27.

1903-51: Maximum discharge, 2,530 cfs May 28, 1948 (gage height, 7.12 ft); no flow

at times when gates in dam are closed. 

Remarks. Records excellent except those below 50 cfs, which are fair, and those for period

of no gage-height record, which are poor. No diversion. Flow regulated by Kachess

Lake (see p. 336 ). 

Cooperation. Gage-height record collected in cooperation with, and seven discharge measurements furnished by Bureau of Reclamation. 

Revisions (water years). W 369: 1904, 1907-8.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

1.0 

1.6 

2.7 

6.9

0.6 

.9 

1.4 

2.0 

2.5 

3.0 

5.5

15

28

64

126

205

325

1,350

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-fl

(t)

Oct.

205 m

119

119

46

2.9

3.1

2.7

2.7

3.8

2.7

2.7

2.7

2.7

2.7

*2.6 776" z'.e

2.7

2.7

2.6

2.6

2.7

2.7

2.7

2.7

3.5

3.8

2.7

2.7

2.7

733.3

23.7

1,450

+14,260

Nov.

H

s!i

3.1

3.1

3.1

3.1

2.7

2.7

2.7

2.7

2.7

2.9

3.1

3.1

3.1

3.1

3.1

3.1

3.1

6.0

11

7.9

8.1

8.3

8.1

8.1

6.0

4.2

3.8

130.5

4.35

259

+28,070

Dec.

3.3 

3.1

2.6

*2.2

2.2

2.0

250

420

420

420

424

424

440

540

600

600

600

600

600

600

600

600

600

600

600

600

600

600

600

600

600

13,553.4

437

26,880

+5,020

Jan.

600

600

600

600

600

600

600

362

223

223

223

223

225

*223

223

223

223

223

223

223

223

221

251

269

298

298

298

298

298

298

10,562

341

20,950

-3,280

Feb.

HI298

29S

298

298

298

*29S

304

313

319

319

313

310

407

472

472

472

472

472

557

600

600

555" 620

600

600

600

_

-

11,806

422

23,420

+8,430

Mar.

600

567

520

520

520

471

432

432

432

432

428

*428

428

364

328

322

322

322

322

251

174

108

108

107

107

107

107

44

6.9

9,322.5

301

18,490

-7,770

Apr.

w7.1

7.1

7.1

7.4

7.9

8.8

9.3

9.1

8.8

8.8

9.3

9.3

9.3

9.1

9.1

9.1

9.1

8.6

*7.4

7.1

*176

319

315

319

319

319

319

264

-

2,536.6

84.6

5,030

+26,780

May

190 

*199

199

199

201

201

72

8.1

s7~7.9

185

258

25S

239

243

292

328

328

328

328

443

653

720

740

760

627

540

540

540

540

540

10,789.0

348

21,400

+33,080

June

540 

540

540

 540

540

448

325

225

158

138

174

342

388

500

680

800

760

760

760

740

740

740

720

700

700

720

800

840

900

940

~

17,698

590

35,100

-3,150

July

940 

9^5

1,020

,120

,120

,170

,210

,210

,190

,190

,190

,240

,210

,210

,210

1,210

1,260

1.320

Aug.

1.300 

l,36o

1,300

1,300

1,300

1,300

1,300

1,300

1,300

1,300

1,300

1,300

1,280

1,280

1,280

1,040

428

79

*1,320 2.7

1,300 *1.6

1,300 1.0

,300 .7

,300 .6

,300 .6

,300 .6

,300 .6

,300 .5

1,300 .5

1,300 .5

1,300 .5

1,300 .5

37,88020,997.9

1,222 677

75,130 41,650

-68,950 -41,200

Sept.

0.5 

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.2

.£

.2

.2

.2

*.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.3

.5

 8

"

9.0

0.30

18

+2,660

Adjusted for change in lake contents

Mean

Cfsm

In.

Ac-ft

255

4.01

4.63

15,710

476

7.48

8.35

28,330

519

8.16

9.40

31,900

287

4.51

5.21

17,670

573

9.01

9.39

31,850

174

2.74

3.16

10,720

535

8.41

9.38

31,810

886

13.9

16.06

54,480

537

8.44

9.42

31,950

101 7.32

1.59 0.115

1.82 0.13

6,180 450

45.0

0.708

0.79

2,680

Calendar year 1950 : 

Water year 1950-51 :

Max 

Max

1,260 

1,320

Min 1.7 

Min 0.2

Mean 

Mean

376 

373

Ac-ft 

Ac-ft

271 

269

,800 

,800

Adjusted

Calendar year 1950 : 

Water year 1950-51 :

Mean 

Mean

402 

364

Cfsm 6.32 

Cfsm 5.72

In. 

In.

85.81 

77.74

Ac-ft 

Ac-ft

291 

263

,100 

,700

* Discharge measurement made on this day. 

t Change in contents in Kachess Lake, in acre-feet.

Note. No gage-height record Aug. 27 to Sept. 17, Sept. 19-30; discharge estimated on basis of 1 

discharge measurement and weather records.
318 YAKIMA RIVER BASIN

Cle Elum River near Roalyn, Wash.

Location (revised).--Lat 47e 14'30", long. 121°03t50", in NW$ sec. 11, T. 20 N., R. 14 E., 

on left bank 1,000 ft downstream from dam at Cle Elum Lake and 4 miles northwest of 

Roslyn.

Drainage area. 203 sq ml (revised).

Records available. October 1903 to September 1951.

gage. water-stage recorder. Datum of gage is 2^103,10 ft above mean sea level (Bureau 

of Reclamation benchmark). Prior to Oct. 14, 1913, and Sept. 4, 1931. to Apr. 19, 

1933, staff gages and Oct. 14, 1913, to Sept. 3, 1931, water-stage recorder at about 

same site at same datum.

Average discharge. 48 years, 907 cfs (adjusted for storage since January 1906).

Extremes . Maximum discharge during year, 3,800 cfs May 25 (gage height, £.37 ft); minimum, 9 cfs Apr. 10, 11 (gage height, 3,88 ft).

1903-51: Maximum discharge, 18,700 cfs Nov. 15, 1906 (gage height, 14.05 ft); no 

flow at times when gates in dam are closed.

Remarks. Records excellent. No diversion above station. Flow regulated by Cle Elum

~ Ealce (see p. 336).

Cooperation. Gage-height record collected In cooperation with, and six discharge measurements furnished by Bureau of Reclamation.

Revisions (water years). W 369: 1906-8.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge. In cubic feet per second)

4.3

4.6 

5.0 

6.0

70

142

275

720

7.0 

8.0 

9.3

1,370

2,230

3,680

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

ftf

Oct.

Hil'l2f

1,020

1,020

1,020

900

840

840

606

126

EH

1,020

1,020

1,060

1,020 

 1,020

1,020 

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,020 

990

990

30,138

972

59,780 

-13,400

Nov.

$

99C

990

990

990

990

990

990

990

990

990

990

990

990

990 

990

693

560

565

520

55S

530

535

530

530

530

545

550 

 550

23,998

800

47,600 

+20,270

Dec.

550 

550

550

550

4£i

565

560

 560

560

560

560

550

545

545

545

545 

545

545 

645

710

710

715

720

720

720

720

726

726 m

732

19,097

616

37,880 

+39,290

Jan.

w732

756

758

744

75C

750

750

744

744

744

738

738

738

738 

 810

870 

870

870

870

870

960

sic

990

990

990

990 

990

990

25,896

835

51,360 

-12,930

Feb.

990 

990

990

990

990

990

990

990

 990

782

247

240

240

ffi

545 

870

990 

1,160

1,260

1,230

1,250

1,570

1.410

1,410

1,410

1,570

-

26,556

948

52,670 

+25,270

Mar.

1.57C 

TTfK

1,37C

1,370

1.37C

1.37C

1,370

1,230

1,160

1,160

1,160

1,120

1,120

 1,060

1,020

1,020 

1,020

1,020 

900

840

840

606

484

484

480

480

408

362

362

fie"

28,642

924

56,810 

-30,540

Apr.

554 

554

554

554

354

350

550

554

550

157

88

267

264

264

264

264 

264

264 

264

264

264

261

 261

444

685

690

700

705

TCt 

705

-

11,195

373

22,200 

+77,580

May

556 

256 SIf

346

346

346

346

346

350

350

350

350

350

346

777

1,230 

1,530

1,950 

2,180

2,230

2,250

2,230

2,530

3,080

5.680

3,440

2,970

2,750

2,530 

2,040

1,730

44,067

1,422

87,410 

405,800

June

1,650 

1,770

2,150

2,550

 2,640

2,530

2,430

2,380

2,280

2,330

2,530

2,750

2,970

2,970

3,520

3.440 

372CO

2,640 

2,130

2,530

2,380

2,180

2,040

2,000

1,950

1,950

1,860

1,770

1,690 

1.610

-

70,180

2,559

139,200 

+960

July

1,610 

1,610

1,610

1,610

1-550

1,530

1,530

1,530

1,530

1,530

1,530

1,570

1,650

1,690

1,690

1,690 

1,770

1,860 

*1,860

1,950

2,000

2,040

2,040

2,040

2,180

2,530

2 .550

2,553

2,530

2,530

2,530

58,160

1, 87"

115,400 

-59,870

Aug.

2,530 

2,530

2,530

2,530

2,530

2,530

2,530

2,530

2,530

2,530

2,530

2,530

2,530

2,530

2,380

2,530

2,430

2.580 

2,530

 2,530

2,530

2,530

2,530

2,550

2,530

2,530

2,530

2,530

2,350 

2,130

1.860

76,760

2,476

152,300 

132,900

Sept.

1,650 

1,530

1,530

1,530

1,610

1,730

1,690

1,690

1,690

1,690

1,690

1,690

1,690

1,690

1,690

1,690 

*1,690

1,690 

1,730

1,820

1.860

1,866

1,860

1,860

1,860

1,820

1,690

1,160

l§§

-

49,180

1.639

97,550 

-87,250

Adjusted for change in lake contents

Mean

Ao-ft

754

5.71

4.2e

46,580

1,141

5.62

6.27

67,870

1,255

6.18

7.15

77,170

625

3.08

3.55

38,430

1,403

6.91

7.20

77,940

427

2.10

2.43

26,270

1,677

8.26

9.22

99,780

3,110

15.3

17,66

191,200

2,356

11.6

12.95

140,200

90-5

4. 45

5.13

55,530

316

1.56

1.79

19,400

175

0.852

0.95

10,320

Calendar year 1950 : 

Water year 1950-51 :

Max 

Max

4,290 

3,680

Min 0 

Mln 88

Mean 1,159 

Mean 1,271

Ac-ft 

Ac-ft

824,400 

920,200

Adjusted

Calendar year 1950: 

Water year 1950-51 :

Mean 

Mean

1,265 

1,175

Cfsm 6.23 

Cfsm 5.79

In. 84.60 

In. 78.56

Ac-ft 

Ac-ft

915,800 

850,500

 Discharge measurement made on this day.

t Change in contents in Cle Elum Lake, in acre-feet.
YAKIMA RIVER BASIN 319

Yaklma River at Cle Klum, Wash.

Location. Lat 47°11'20", long. 120°56'40", in sec. 27, T. 20 N., R. 15 E., on left bank

 at highway bridge at Cle Slum Just upstream from Roslyn Creek, 7 miles upstream from 

Teanaway River.

Drainage area. 500 sq ml, approximately.

Records available.--August 1906 to September 1951.

Qage. Water-stage recorder. Datum of gage is 1,902.27 ft above mean sea level, subject

~to adjustment to datum of 1929. Prior to Aug. 12. 1910, chain gage on highway bridge 

at different datum. Aug. 12, 1910, to July 11, 1911, staff gage 30 ft below bridge at 

present datum. July 12, 1911-, to June 27, 1923, water-stage recorder on right bank 

under highway bridge at present datum. Several staff gages at various locations near 

bridge, all at present datum, June 28, 1923. to Oct. 21, 1924.

Average discharge. 45 years, 1,964 cfs (adjusted for storage since October 1906 and 

KlUltas Canal diversion since 1930).

Extremes. Maximum discharge during year, 4,880 cfs May 25 (gage height, 9.25 ft).; minimum, 480 cfs Oct. 12 (gage height, 5.59 ft).

1906-51: Maximum discharge, 25,600 cfs Nov. 14, 1908 (gage height, 12.5 ft, from 

floodmarks); minimum, 64 cfs Nov. 16, 17> 1929, Dec. 4, 1936.

Remarks.--Records fair. Kittitas high-line canal diverts water from river at Easton for

 Irrigation below station. Several smaller diversions for irrigation of several

hundred acres above station. Considerable regulation by Keechelus, Kach^ss, and Cle 

Slum Lakes (see p. 336). Cooperation. Gage-height record collected In cooperation with, and nine discharge measurements furnished by Bureau of Reclamation.

Revisions (water years). W 369: 1910-11. W 832: 1936.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

30

31

Total

Mean

Ac-ft

ftf

(*)

Mean

Cfsm

In.

Ac-ft

Oct.

1,780 

1,730

1,560 

1.46O

1,510

1.51O

1,310

1,210 

1,220

1,46O

695

735

»1,460

1.62O

1,68O

1,780

1,780

1,780

1,780

1,780

1,730

1,730

1,730 

1,750 

1,750

1,780

1,900

1,960

1,960

1,960

2.020

50,071

1,615

99,310

-11,700

11,510

1,612

3.22

3.72

99.12O

Nov.

2,140 

2,140

2,320 

2,380

2,450

2,450

2,450

2.520 

2,520

2,450

2,45O

2,450

2,380

2,38O

2.32O

1,84O

1,840

1,600

1,360

1,290

1.160

1,566

1,620 

1,780 

2,020

2,260

2,200

2,140

1,900

»1,730

-

62,100

2.O70

123,200

4-55,380

0

5,001

6.00

6.70

178,600

Dec.

1,620 

1,510

1,46O

I'.g.SP

1,410

1,410

»1,680 

1,900

1,9OO

1,960

2,O20

2,020

2.O2O

2,080

2,O80

2.O8O

2,080

2,140

2,260

2,380

2,560

3,340 

5.790 

37710"

3,480

5.19O

5,O5O

2,910

2,840

2,710

70,280

2,267

159,400

4-55,580

0

Adju

5,171

6.34

7.31

195,000

Jan.

2,640 

2,710

2.840 

2,716

2,640

2.58O

2,520

2,450 

2.38O

2.O8O

2,080

2,14O

2,200

2,200

»2,200

2,200

2,260

2,260

2,260

2,2OO

2,260

2,2OO

2,200 

2,320 

2,52O

b2,SOO

b2,200

b2,OOO

bl,900

t>ll 800,

71,250

2,298

141,300

-58,090

0

sted foi

1,678

5.36

3.87

103,200

Feb.

bl.800 bTTloo"

bl,900 

b2,000

b2,100

2,140

2,020

1,960 

»2,580

3.560

3,480

5,340

2,780

»2,450

2,450

2,580

2,840

2,980

2,980

3,050

2,980

3,050

3,120 

5,120 

5.12O

3,050

3.05O

2,980

_

_

-

75,260

2,688

149,300

4-40,620O1

change

3,419

6.84

7.12

189,900

Mar.

2.980 

2,980'

2,840 

2,840

2,780

2,78O

2,580

2,520 

2,320

2,320

2,320

2,320

2,320

 2,320

2,320

2,520

2,260

2.20O

2,140

1,960

1.84O

1,620

1,560 

1,56O 

1,560

1,410

1,410

1,290

1,220

1,180

1.120

64, 59O

2,084

128,100

-48,700.

0

In lake

1,291

2.58

2.98

79,400

Apr.

1,100 

1,130

1,210 

1,36O

1,510

1,510

1,270

1,250 

 1,360

1,460

1,280

1,510

1,620

1.960

1,960

1,780

1,900

1,840

1,730

»1,460

1,250

1,140

1.070 

1,286 

1,560

1.51O

1,460

1,460

1,460

1,41O

-

43,780

1,459

86,840

H34.QOO

12,610

contents

3,922

7.84

8.75

233,400

May

1.31C

1,O10

1,360

1,510

1,560

1,510 

1,460

1,S8O

»3,340

2^980

2,260

1,840

1.9OO

2,450

2,980

3,410

3,480

3,340

3,340

3,410

3,87d 

4,190 

4,880

4,530

5,790

5,480

5,120

2,640

2.2OO

80,622

2.6O1

159,900

H89.800

37,760

, and dl

6,302

12.6

14.53

387,500

June

2,140 

2,260

2,640 

»2,780

2,980

3,120

3,120

3,120 

3,050

3,120

3,340

3,640

3,950

3,790

4,280

4.530

4,286

3,560

2,910

2,910

2,980

2,710

2,580 

2,450 

2,380

2.32O

2,320

2,260

2,140

2.080

-

89,740

2,991

178,000

4-3,600

53,290

version

3,948

7.9O

8.81

234,900

July

2,080 

2,080

fritr

2J14O

2,140

2-, 320

2.26O 

2,320

2,320

2,320

2,380

2,520

2,640

Aug.

3,190 

3,190

3,190 

3,190

3,26O

3,260

3,260

3,260 

3,26O

5.340

3,340

3,340

3,340

3,340

2,64f 5,260

|

2,5&" 3,190

2,64r 3,120

»2,84r 3,120

2,84' 3.O5O

2,84' »3,O50

2.91C 3,120

2,98' 5,050

2,98' 5,05O 

2,98' 2,980 

3,05' 2,980

3,19'' 2,980

3.26' 2,980 i,igj ' 2,980

3,19' 2,840

3,19" 2.52O

3,19: 2.320

82,17" 96.35O

2,651 3,108

163,00" 191,1OO

-146,80" 212, 400

66,67" 68,590

1,343

2.70

3.11

82,870

769

1.54

1.77

47,290

Sept.

2.140 

1,960

1,960 

1,900

1,960

2,080

2,080

2,080 

2,020

2,O20

2,O2O

1,960

1,980

»1,960

1,960

1,960

1,960

1,960

1,960

2,O8O

2.O8O

2,080

2,OSO 

2,080 

2,O80

2,O20

1,840

1,7OO

1,500

1.400

-

58,840

1,961

116,700

-126,800

42,760

549

1.10

1.22

32,660

Calendar year 195O: 

Water year 195O-51 :

Max 

Max

6, 

4,

800

880

Mln 

Mln

564 

695

Mean 

Mean

2

2

,505 

,515

Ac-ft 

AC-ft

1

1

,669,000 

,676,000

Adjusted

Calendar year 195O : 

Water year 195O-51 :

Mean 

Mean

2

2

,841 

,575

Cfsm 

Cfsm

5.68 

5.15

In. 

In.

77 

69

.11 

.89

AC -ft 

Ac-ft

2

1

,057,000 

,864,000

* Discharge measurement made on this day.

t Change In contents In Keechelus, Kachess, and Cle Elum Lakes, In acre-feet.

* Diversion by Kittitas Canal, in acre-feet, 

b Stage-discharge relation affected by ice.
320 YAKDIA RIVER BASIN

Teanaway River near Cle Elum, Wash.

Location. La t 47°12', long. 120 0 47', in SWj- sec. 25, T. 20 N., R. 16 E., on right 

bank 4 miles upstream from mouth and 8 miles east of Cle Elum.

Drainage area. 200 sq mi, approximately.

Records available. April 1909 to September 1914, October 1946 to September 1951. Prior 

to October 1912, published as "near Clealum".

. Water-stage recorder. Altitude of gage is about 1,950 ft (from topcgraphic map).

'rior to Sept. 30, 1914, chain gage on highway bridge Sj miles downstream at different 

datum. Oct. 1, 1946, to Oct. 20, 1949, water-stage recorder at site 10C ft downstream 

at different datum.

Average discharge. 9 years (1909-11, 1912-14, 1946-51), 391 cfs.

Extremes. Maximum discharge during year, 2,880 cfs Feb. 11 (gage height, 6.91 ft); minimum recorded, 7.0 cfs Aug. 17 (gage height, 0.68 ft).

1909-14, 1946-51: Maximum discharge, 4,170 cfs May 28, 1948 (gage height, 35.57 

ft, from high-water mark, site and datum then in use); minimum observed, 1 cfs Aug. 

6, 1914 (gage height, 2.17 ft, site and datum then in use).

Remarks. Records good except those for periods of shifting control, which are fair, and 

those for periods of ice effect or no gage-height record, which are poor. Small diversions in Teanaway Valley for irrigation. No regulation.

Rating tables, water year 1950-51 except periods of shifting 

control or Ice effect (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 27 Nov. 28 to Sept. 30

1.0 

1.2 

1.6 

2.0 

2.8

107

205

500

0.6

.7

.8

1.0

1.3

1.6

3.0

3.0

14

31

64

109

2.0 

3.0 

4.0 

5.0 

6.0

195

490

900

1,430

2,070

Discharge, In cubic feet per second, water year October 1950 to Septembe" 1951

Day

1 

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28 

£9

30

31

Total

Mean

Ac- ft

Oct.

ft

21

27

36

49

50

64

70

190

 187 

132

115

109

103

98

99

105

124

146

141

130

120

113

111

115

178 

226 

211

193

175

3,480

112

6,900

Nov.

175 

170

26S

464

500

404

332

282

247

223

199 

181

168

158

152

150

143

132

T32~ 122

202

356

360

484

910

1,030

1.100 

720 

560

490

-

10,814

360

21,450

Dec.

408 

354

324

294

262

255

240

222

 §45

270

309 

351

351

339

315

303

300

300

318

351

490

640

1,500

1.550

1,340

1,100

878 

720 

600

542

472

15,943

514

31,620

Jan.

420 

411

454

378

339

315

294

279

268

260

252 

242

240

242

235

222

202

225

£20

202

203

208

195

190

240

378

424 

348 

b250

b!90

blTO

8,481

274

16,820

Feb.

b!70 

blBO

b200

250

300

232

»222

232

1,160

1,360

2.640 

2,070

1,430

1,180

950

810

720

640

580

542

490

472

444

434

414

396

375 

360

-

-

19,753

705

39,180

Mar.

342 

330

318

324

306

291

276

270

260

252

m242

276

402

424

378

366

384

438

503

508

508

525

620

700

742 

742 

765

742

720

13,446

434

26,670

Apr.

1,220 m

1,550

1,730

1,610

1,670

1,610

1,490

1,370

1,310 

1,460

1,730

1.860

1,670

1,550

1,610

1,670

1,400

1,150

1,000

900

 878

878

950

1,050

1,100 

1,120 

1,080

975

-

39,376

1,313

78,100

May

855 

788

832

1,020

1,310

1,340

1,490

1,400

1,400

1,550

2.610 

2,350

1,670

1,280

1,220

 1,370

1,610

1,430

1,200

1,080

 1,080

1,220

1,400

1,200

 1,000

855

810 

765 

660

580

525

37,900

1,223

75,170

June

508 

525

 580

640

 640

620

580

560

580

600

640 

680

700 TOO"

700

650

600

500

450

400

370

340

3tC

300

290

320

350 

320 

300

280

-

15,043

501

29,840

July

~2"20"

200

ISO

170

200

190

180

160

150

140 

120

11C

10C

as

9C

83

7e

71

67

62

60

57

53

48

45

41 

38 

34

31

28

3,333 ioe

6.63C

Aug.

26 

24

22

21

19

18

17

16

15

14

13 

12

11

10

9.0

8.0

 7.0

7J5

7.5

7.5

8.0

8.6

8.6

8.6

8.6

8.6 

12 

26

40

38

459.5

14.8

911

Sept.

H29

27

25

24

25

26

24

22

23 

23

21

20

19

18

17.5

17

15

 15

16

14

1112

14.5

17 

17.5 

21

34

629.5

21.0

1,250

Calendar year 1950: Max 3,270 Mln 6.0 Mean 484 Ac-ft 350,700

Water year 1950-51: Max 2,640 Mln 7.0 Mean 462 Ac-ft 334,500

Peak discharge (base, 2.900 cfs).-

 Discharge measurement made on thi

 No peak above base. 

s day..

b Stage-discharge relation affected by ice. 

Note. No gage-height record Pet. 4, 5, June 15 to Aug. 16j discharge estimated on basis of weather 

records and records for nearby stations. Shifting-control method used Nov. 25-27, Dec. 24 to May 14.
TAKIMA RIVER BASIN 

Yakima River at Umtanum, Wash.

321

Location. Lat 46°51 I 45", long. 120°28'30", In NW£ sec. 20, T. 16 N., R. 19 E., on right 

bank at Umtanum half a mile upstream from Umtanum Creek: and 10 miles south of Ellens - 

burg.

Drainage area. 11,590 sq mi, approximately (revised).

Records available. August 1906 to September 1951 (fragmentary October 1915 to March 

1931).

Gage. Water-stage recorder. Datum of gage is 1,300.00 ft above mean sea le-'el, datum 

of 1929. Prior to Sept. 28, 1911, staff and chain gages at approximately same site 

at various datums. Sept. 28, 1911, to Nov. 23, 1936, 'water-stage recorde- at site 

300 ft'upstream at datum 26.70 ft higher.

Extremes.--Maximum discharge during year, 12,000 cfs Feb. 12 (gage height, 35.34 ft); 

minimum, 1,160 cfs Oct. 13 (gage height, 31.01 ft).

1906-51: Maximum discharge. 41,000 cfs Nov. 15 or 16, 1906 (gage height, 41.1 ft, 

from floodmarks, present datum); minimum, 138 cfs Oct. 3, 1915 (gage height, 2.86 ft, 

site and datum then in use).

Remarks. Records excellent except those for periods of ice effect or no gag'J-height 

record, which are fair. Plow partly regulated by Keechelus, Kachess, and Cle Elum 

Lakes (see p. 336). Water diverted above station for irrigation of about 97,000 acres.

Cooperation. Gage-height record collected in cooperation with, and 8 discharge measurements furnished by Bureau of Reclamation.

Revisions (water years). W 412; 1914.

Rating table, water year 1950-51, except periods of Ice effect (gage 

height. In feet, and discharge, In cubic feet per second)

31.1

32 .0

33.0

34.0

35.0

1,260 

2,550 

4,6OO 

7,340 

10,800

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Ao-ft

Oct.

2,380 

2,380

2,220 

2,060

2,220

2,140

2,060

1,910

1,840

2,060

1,980

1.280 

1,700

2,140 

2,140

2,22O 

*2,500

2,220

2,220 

2,220

2,220

2,220

2,140

2,060

2,060

2,140

2,220 

2.460

2,460 

2,460

2,460

66,590

2,148

152,100

Nov.

2,550 

2,640

2,750 

3,000

3,200

3,100

3,100

3,000

2,910

2,910

2,820

2,820 

2,730

2,75O 

2,750

2,460 

2,220

2,140

1,780 

1,670

1.590

2,060

2,550

2,550

3,000

3,710

3.920 

3] 820

3,400 

3,000

-

82,840

2,761

164,300

Deo.

*2,730 

2,460

2,580 

2,220

*2,060

1.910

1,980

2,060

2,460

2,820

2,910

5,100 

5,100

5,000 

5,000

5,100 

5,500

5,400

3,400 

5,500

5,710

4,140

6,160

7.190

6,740

6,500

5,610 

5,090

4.72O 

4,480

4,140

113,170

5,651

224,500

Jan.

5,920 

4,050

4.26O 

4,050

5,820

5,600

5,500

5,400

5,500

5,100

2,910

2,820 

2,910

5,000 

5,000

2,910 

*2,910

2,910

2,910 

2,820

2,910

2,820

2,820

2,910

b2,850

b2,600

b2 ( 300 

b2~,200

b2 . 100 

2,100

2,100

95, 770

5,025

186,000

Feb.

2.100 

2,100

2,500 

2,500

2,'700

2,820

*2,750

2,640

3,600

8,410

10,000

10.400 

*7,340

5,880 

5,090

,720 

,840

,840

,720 

,600

,600

,480

,480

,480

,570

,260

,140 

,050

-

-

129,170

4,615

256,200

Mar.

5,920 

3,920

5,820 

5,710

5,60O

3,600

3,500

3,400

5,100

5,000

5,000

5,OOO 

3,000

3,200 

*3,710

4.140 

5,600

5,500

5,500 

5,500

5,600

5,500

2.910

2,9lO

3,100

3,300

3,400 

5,200

5,100 

2,910

2,910

104, 560

5,575

207,400

Apr.

2,820 

5,100

3,600 

4,570

5,550

5,550

5,090

5,090

4,840

4, S40

4,570

4,720 

5,220

6.160 

5,880

5,610 

5,550

5,480

5,220 

*4,570

5,820

5,500

5.00O

2.750

5,100

5,100

5,500 

5,500

5,600 

5,400

-

129,680

4,523

257,200

May

3,100 

2,550

2.500 

2,550

5,600

,050

,600

* ,720

,480

,720

S,150

*1O.OOO 

7,500

5,880 

5,090

5,480 

6,160

6,600

6,500 

5,880

5,480

5,480

5,880

6,450

6,740

6,600

5,740 

5,220

4,840 

4,260

3,710

164,090

5,295

525, 500

June

5,500 

5,200

*5,500 

3,920

4,840

5,480

5,480

5,220

4,840

4,720

4,840

4,960 

5,550

5,220 

5,220

5.610 

5,480

4,720

4,030 

3,600

3,710

5,500

5,500

5,200

5,200

5,200

3,100 

3,000

2,910 

2.820

-

125,470

4,182

248,900

July

2,820 

2,820

2.750 

2,730

2,820

3,100

3,100

3,000

3,000

2,910

2,820

2,750 

2,750

2,910 

2,910

2,910 

2,820

*2,910

5,000 

3,000

3,100

3,100

5,100

5,100

5,20C

5.50C

5.40C 

5,40C

5.40C 

5.40C

5.4OC

95.67C

5,022

185, 80C

Calendar year 1950: Max 9,320 Mln 800 Mean 5,517 Ao-ft 2,402,000

Water year 1950-51: Max 10,40O Mln 1,280 Mean 3,494 Ao-ft 2,529,000

Aug.

3,300 

3,300

3,300 

3,300

3,300

3,300

3,300

3,300

3,300

3,300

3,200

3,200 

5,200

5,200 

5,200

5,200 

*5,200

5,200

5.100 

5,100

5,100

5,100

5,100

5,100

5,100

5,100

5,100 

5,300

3.600 

3,400

5,200

100,000

5,226

1 98, 5OO

Sept.

2,91O 

2,730

2,550 

2,55O

2,460

2,460

2,460

2,550

2,460

2.5SO

2,580

*2, 580 

2,500

2,500 

2,220

2,220 

2,500

2,220

2,220 

2,500

2,460

2,460

2,460

2,550

2,550

2,640

2,550 

2,580

1,910 

1.840

-

72,150

2,405

145,100

* Discharge measurement made on this day. 

b Stage-discharge Stage-discharge relation relation affeoted affeoted by Ice.

Note. No gage-height record Jan. 50 to Peb. 5, July 27 to Aug. 16, Sept. llj discharge e"tlmated. 

i basis of records for station at Cle Elum, weather records, and recorded range In stage.
322 YAKIMA RIVER BASIN

Bumping River near Nile, Wash.

Location. Lat 46°52', long. 121°18, in NE-J- sec. 23, T. 16 N., R. 12 E., on left bank

 a quarter of a mile downstream from spillway of Bumping Lake Dam and 19 miles west of

Nile.

Drainage area. 68.6 sq mi (revised).

Records available. June to July 1906, April 1909 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 3,360 ft (from river-profile map). June 

~13 to July 31, 1906, staff gage at site half a mile upstream at different datum. Apr.

27 to Aug. 6, 1909, and June 25, 1912, to June 13, 1913, staff gage at site three-)

eighths of a mile upstream at different datum. Aug. 7, 1909, to June 24, 1912, staff

gage at site about 1,300 ft upstream at different datum.

Average discharge. 42 years (1909-51), 290 cfs (adjusted for storage since November 1910). 

Extremes. Maximum discharge during year, 1,240 cfs June 16 (gage height, 4.28 ft); mlni-

 mum,'4.4 cfs Oct. 1-3 (gage height, 0.99 ft). nn

1906, 1909-51: Maximum discharge, 5,180 cfs Dec. 29, 1917 (gage height, 9.33 ft);

practically no flow when gates in outlet conduit are closed. 

Remarks. Records good except those for period of no gage-height record, which are fair.

No diversion. Plow regulated by Bumping Lake (see p. (336). 

Cooperation. Gage-height record collected in cooperation with, and three discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.9

1.0

1.1

1.2 

1.4

3.0

4.6

7.3

11

25

1.7 

2.1 

2.6 

3.4 

4.3

60

136

280

640

1,240

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28 

29

30

31

Total

Mean

flc-ft

(t)

Oct.

4.4 

4.4 

4.4

5.1

6.5

5.4 

4.9

4.6

4.6

8.5

6.5

6.0

5.4

5.1

5.1

5.7

6.2

7.3

*7.7

7.0

6.5

6.0

6.2

6.2

8.1

8.1 

13

IT 

10

10

8.9

208.8

6.74

414

+12,920

Nov.

11

12

13

13 

14

14

14

13

13

11

11

11

11

11

200

288

259

226

230

266

288

296

308

312 

356

404 

470

610

-

4,704.8

157

9,330

+15,010

Dec.

730 

790 

820

820

880

850 

850

880

880

880

880

850

880

915

880

880

850

880

850

850

880

880

950

985

985

1.020 

985

950 

950

915

880

27,475

886

54,500

-19,060

Jan.

790

760

724

670 

630

600

535

412

368

360

356

348

356

 352

312

266

248

245

245

242

239

220

211

217 

217

220 

220

220

220

12,473

402

24,740

-5,570

Feb.

22O 

220 

220

220

217

214

217

223

262

308

352

376

388

392

392

392

392

388

388

384

380

376

432

500

495

485 

480

465

_

-

9,778

349

19, 390

+5, 040

Mar.

450 

440 

440

432

388

360 

356

352

344

336

328

324

320

312

312

304

300

292

284

276

273

266

259

252

245

242 

236

230 

226

220

206

9,605

310

19,050

-7,740

Apr.

114 

12_

15

16

18 

20

23

24

24

27

31

35

a35

a36

a37

a38

a39

a40

227

356

356

360

480

555

555 

555

555 

555

485

-

5,636

188

11,180

+ 13,620

May

510

iff 49O

480

485 

*490

490

495

505

575

585

580

575

658

754

790

880

950

950

950

950

985

1. 020

754

545 

850

880 

850

760

700

21,072

680

41, 800

+16,940

June

658 

646 

694

736

760

790 

*820

760

790

850

950

1,020

1,020

1,O20

1,160

1.200

1,090

1,020

950

915

880

850

820

820

760

736 

718

694 

664

658

-

25,449

848

50,480

-160

July

610 

595

555

550

445 

404

380

424

495

525

550

555

550

550

550

*56C

570

565

530

470

465

46C

465

465

465 

460

460 

455

455

460

15, 631

504

31,010

-11,650

Aug.

450 

450 

450

445

455

450 

450

455

372

368

368

364

348

*316

296

276

276

273

270

256

245

239

206

176

173

173

173

m173

176

9,462

305

18,770

-12,070

Sept.

173 

173 

168

168

165

165 

168

181

189

 208

230

284

316

32O

312

316

316

300

296

256

217

186

163

146

136

146 

163

132 

114

129

-

6,236

208

12,370

-8,850

Adjusted for change in reservoir contents

Mean

Cfsm

In.

Ac-ft

217

3.16

3.64

13,330

409

5.96

6.65

24,340

576

8.40

9.69

35,440

312

4.55

5.24

19,170

440

6.41

6.68

24,430

184

2.68

3.09

11,310

417

6.08

6.78

24,800

955

13.9

16.05

58,740

846

12.3

13.75

50,320

315

4.5S

5.2S

19,36C

109

1.59

1.83

6,700

59.2

0.863

0.96

3,520

Calendar year 1950: 

Water year 1950-51:

Max 1,920 

Max 1,200

Min 

Min

4.3 

4.4

Mean 449 

Mean 405

Ac -ft 

Ac -ft

324,700 

293,000

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 446 

Mean 403

Cfsm 

Cfsm

6.50 

5.87

In. 

In.

88.31 

79.65

Ac -ft 

Ac -ft

323, 100 

291,500

* Discharge measurement made on this day.

t Change in contents In Bumping Lake, in acre-feet, furnished by Bureau of Reclamftion.

a No gage-height record; discharge estimated on basis of recorded range in stage.
YAKIMA RIVER BASIN 323

American River near Nile, Wash.

Location. Lat 46e58'30", long. 121e10'10", in SW£ sec. 12, T. 17 N., R. 13 E., on right 

bank 300 ft upstream from Bumping Lake road crossing, three-quarters of a mile upstream 

from mouth, and 16 miles northwest of Nile.

Drainage area. 78.9 sq mi (revised).

Records available.--April 1909 to September 1911, July 1913 to September 1915 (fragmentary), 

October 1939 to September 1951.

 Water-stage recorder. Datum of gage is 2,700.0 ft above mean sea level (Washington 

_Jate Highway Department benchmark). Prior to Sept. 12, 1915, staff gage at site 300 

ft downstream at different datum. Oct. 12 to Dec. 7, 1939, staff gage at present site 

and datum.

Average discharge.--14 years (1909-11, 1939-51), 242 cfs.

Extremes. Maximum discharge during year, 1,700 cfs May 11 (gage height, 75.44 ft); mini-

 mumT46 cfs Sept. 23, 24 (gage height, 71.91 ft).

1909-11, 1913-15, 1939-51: Maximum discharge, 2,600 cfs May 27, 1948 (gage height, 

76.6 ft, from high-water mark in well), from rating curve extended above 1,400 cfs; minimum, 20 cfs Nov. 22, 1940.

Remarks. Records good except those for periods of shifting control, which ar-» fair, and

 EEose for periods of ice effect, which are poor. No diversion or regulation.

Cooperation. Gage-height record collected in cooperation with, and six discharge measurements furnished by Bureau of Reclamation.

Revisions (water years). W 982: 1940-42.

Rating table, water year 1950-51, except periods of ice effect and shifting 

control (gage height. In feet, and discharge. In cubic feet per second)

71.9

72.2

72.6

73.0

156

273

73.5

74.0

75.2

485

750

1,520

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Ac-ft

Oct.

66

§3

63

66

93

104

98

115

122

210

231

164

134

117

111

102

102

124

 164

182

156

137

122

111

177

216

243

23T

202

182

164

4,378

141

1.79

2.06

8,680

Nov.

151

159

190

250

287

256

231

207

185

169

156

142

130

126

119

117

113

106

93

93

113

134

146

222

437

778

955

 865

668

555

-

8,153

272

3.45

3.84

16,170

Dec.

456

383

341

305

270

260

 273

2£0

240

270

287

309

291

273

263

250

253

243

240

263

313

345

678

895

835

722

602

515

442

406

366

11,829

382

4.84

5.58

23,460

Jan.

333

313

287

270

247

222

210

193

188

 185

182

177

169

161

156

151

149

146

139

130

119

110

100

100

100

110

90

80

 73

70

70

5,030

162

2.05

2.37

9,980

Feb.

70

70

75

80

95

117

122

154

317

722

656

510

424

362

329

298

270

250

231

216

199

193

188

169

159

159

_

-

8,285

296

3.75

3.91

16,430

Mar.

155

150

145

140

135

130

125

120

120

115

115

115

128

126

142

 159

146

139

137

142

154

149

144

142

146

146

142

144

146

144

139

4,280

138

1.75

2.02

8,490

Apr.

142

154

185

243

298

321

362

388

401

392

392

424

515

624

634

624

662

*222

646

570

480

428

396

375

388

414

419

442

428

396

-

12,865

429

5.44

6.06

25,520

May

370

345

355

401

505

560

646

 668

722

865

1.480

1,450

1,080

895

805

835

1,020

1,040

955

895

895

985

1,200

1,170

1,040

895

805

778

673

590

535

25,456

821

10.4

12.00

50,490

June

505

530

596

624

624

668

 678

662

695

778

865

895

925

895

1.020

9S5

895

835

805

750

722

695

695

695

656

634

634

612

585

590

-

21,748

725

9.19

10.25

43,140

July

540

515

437

379

345

337

349

362

333

309

305

298

273

263

 240

234

213

190

177

166

159

154

146

142

134

130

124

117

113

8,635

279

3.54

4.07

17,130

Aug.

ill

107

104

102

98

97

95

93

91

88

87

87

87

 83

82

80

77

76

71

71

69

66

64

64

63

62

5f

67

74

74

71

2,523

81.4

1.03

1.19

5,000

Sept.

70

67

64

61

61

58

57

58

57

56

 56

55

55

53

52

52

51

50

49

48

47

47

M

46

51

52

50

50

52

106

-

1,677

55.9

0.708

0.79

3,330

Calendar year 1950: Max 1,520 Mln 58 Mean 329 Cfsm 4.17 In. 56.57 Ac-ft 238,000

Water Water year year 1950-51: 1950-51: Max Max 1,480 1,480 Mln Hln 46 46 Mean Mean 315 315 Cfsm Cfsm 3.99 3.99 In. In. 54.14 54.14 Ac-ft Ae-ft 227,800 227,600

Peak discharge (base. 700 cfs).--Nov. 27 (7 p.m.) 1,040 cfs (74.58 ft); Dec. 24 (7 a.m.) 925 cfs 

(74.28 ft); Feb. 11 (2 p.m.) 1,020 cfs (74.43 ft)j Apr. 18 (10 a.m.) 722 efs (74.03 ft); May 11 

(7 p.m.) 1,700 cfs (75.44 ft); May 23 (11 p.m.) 1,240 cfs (74.73 ft); June 15 (10 a.m.) 1,040 cfs 

(74.46 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Jan. 20, Jan. 22 to Feb. 5, Mar. 1-12.
324 YAKIMA RIVER BASIN

Tieton River at Tieton Dam, near Naches, Wash.

Location. Lat 46°39'30", long. 121 0 07'20", in sec. 31, T. 14 N., R. 14 E. (unsurveyed), 

On left bank 900 ft upstream from Wild Cat Creek, 1,200 ft downstream from Tieton Dam, 

19 miles upstream from Oak Creek, and 22 miles southwest of Naches.

Drainage area. 187 sq mi.

Records available. August 1908 to September 1914 (fragmentary), October 1918 to March 

1919, and April 1925 to September 1951 in reports of Geological Survey. September 1908 

to December 1913, July to September 1914, October 1918 to September 1930, and May 1925 

to September 1933 (mean monthly discharge) in State Water-Supply Bulletin 5. Published 

as "at McAllister Meadows" 1908-14 and as "at Rimrock" 1918-19.

Gage. Water-stage recorder. Altitude of gage is 2,720 ft (river-profile survey). Prior 

Fo Oct. 1, 1914, staff gage at site a third of a mile upstream at different datum. 

Oct. 1, 1918, to Mar. 31, 1919, Apr. 27 to Sept. 4, 1925, staff gage and reference 

point and Sept. 5, 1925, to Apr. 23, 1933, water-stage recorder at site 800 ft downstream at different datum. Apr. 24, 1933, to Dec. 11, 1934, at datum 2.0 ft higher.

Average discharge. 3B years (1908-12, 1918-20, 1925-51), 480 cfs (adjusted for storage 

since October 1925).

Extremes. Maximum discharge during year, 2,240 cfs June 10 (gage height, 6.04 ft); minimum observed, 8.4 cfs Feb. 15 (gage height, 1.51 ft).

1908-14,-1918-19, 1925-51: Maximum discharge, 8,450 cfs Dec. 22, 1933 (gage height, 

9.24 ft); no flow Apr. 4-6, 10, 1930.

Remarks. Records good except those for period of no gage-height record, which are fair, 

and those below 20 cfs, which are poor. No diversion. Plow regulated by Tieton Reservoir (see p. 336).

Cooperation. Sage-height record collected in cooperation with, and six discharge measurements"furnished by'Bureau of Reclamation.

Revisions (Water years). W 369: 1909-10.

Rating tables, water year 1950-51 (gage height. In feet, and discharge. 

In cubic feet per second)

Oct. 1 to Feb. 10 Feb. 11 to Sept. 30

3.2 291

3.7 500

4.2 795

3.5 430

4.0 690

Discharge, in cubic feet per second, water year October 1950 to Septemt°r 1951

1.5

1.6 

1.8

8.0

12

24

2.1 

2.5 

3.0

53

117

243

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30 

31

Total

Mean

Ac-ft

(t)

Oct.

428

336

365

369

369

369 

373

373

373

373

373

369

369

369

397

397

389

*373

373

432

465

455

455

455

455

455 

455

455

455

455 

460

12,589

406

24,970

+3.O2O

Nov.

460

460

460

455

460

603 

669

669

675

675

675

675

675

675

675

675

735

789

783

783

789

789

789

795.

795

795

 795

795

795

795

20,658

689

40,970 -520

Dec.

795

795

795

795

795

 795 

795

795

795

795

795

795

795

795

795

795

795

795

795

795

795

795

795

795

795

795 

795

795

795

795 

795

24,645

795

48,880

+5,040

Jan.

795

795

795

795

795

795 

795

795

795

795

795

 795

795

795

795

795

795

795

795

795

795

795

795

789

789

783 

789

783

a78o

a7§o 

a780

24,558

792

48,710

-18,260

Feb.

 723

663

663

663

603

423 

361

361

365

325

13

12

10.5

9.1

168

338

390

386

551

750

840

930

930

930

930

930 

900

600

_

:

L4,767.7

527

29,290

+15,100

Mar.

930

540

750

750

750

750 

750

750

660

60S

580

580

580

580

580

580

580

580

 580

580

580

580

520

475

480

480 

422

390

390

318 

282

18,252

589

36,200

-10,420

Apr.

275

275

278

278

278

278 

278

278

278

278

282

231

150

150

152

152

 152

152

152

205

246

246

246

243

243

243

306

350

350

350

7,375

246

14, 630

+35,880

May

422

430

350

350

354

366 

 366

350

350

350

350

350

350

346.

346

346

354

378

382

386

402

580

810

930

1,070

1.210 

1,210

1,210

1,210

1,210 

1,100

18,218

see

36, 130

(-54, 360

June

900

610

310

810

930

 1,070 

1,140

1,070

1,140

1,300

1,360

1,480

1,560

1,560

1.680

1,640

1,560

1,480

1.4OO

1,320

1,320

1,240

1,240

1,240

1,180

1,140 

1,100

1,070

1,070

1,040

36,660

1,222

72,710

+2,720

July

1,0")

1,010

1,010

1,010

900

8*0 

7?0 r"T

870

1,0-JO

1,140

1,140

1,240

1,3-0

1,3-0

 1,320

1,2V}

1,2V)

1,2V)

1,2V)

1,2V)

1,2V)

1, 2.30

1,320

1,320

1.320 

1,320

1,210

I,3i30

1.440 

1,320

36,310

1,171

72,020

-31,2130

Aug.

1,240

1,280

1,240

1,240

1,360

1.400 

1,400

1,400

1,400

1,400

1,400

1,360

1,210

1,070

1,000

1,000

1,040

1,140

1,140

1,140

1,180

1,180

 1,280

1,320

1,180

1,100 

1,140

1,070

965

930 

930

37,135

1,198

73,660

-52,580

Sept.

930

935

930

930

930

930 

930

930

930

900

870

840

810

810

810

810

810

810

840

870

*870

870

870

840

810

810 

780

690

605

575

25,270

842

50,120

-34,710

Adjusted for change In reservoir contents

Mean

Cfsm

In.

Ac-ft

455

2.43

2.81

27,990

680

3.64

4.06

40,450

877 495

4.691 2.65

5.41) 3.05

53,920 j 30,450

799

4.27

4.45

44,390

419

2.24

2.58

25,780

849

4.54

5.06

50, 510

1,472

7.87

9.07

90,490

1,268

6.78

7.56

75,430

6133

3.55

4.09

40,760

343

1.83

2.11

21,080

259

1.39

1.55

15,410

Calendar year 195O: 

Water year 1950-5H

Max 

Max

2,110 

1,680

Mln 

Mln

336 

9.2

Mean 

Mean

786 

757

Ac-ft 

Ac-ft

569, 

548,

100 

300

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

760 

714

Cfsm 

Cfsm

4 

3

.06 

.82

In. 

In.

55.17 

51.80

Ac-ft 

AC -ft

550, 

516,

100 

700

* Discharge measurement made on this day. 

t Change In contents In Tieton Reservoir, In acre-feet, furnished by Bureau of Reclamation, 

a No gage-height record; discharge estimated on basis of records for nearby stations and weather 

records.
YAKIMA RIVER BASIN 325

Tieton River at headworks of Tieton Canal, near Naches, Wash.

Location. Lat 46"40'10", long. 121 "00"20", in sec. 30, T. 14 N., R. 15 E. (unsurveyed) ,

on right bank 1,000 ft downstream from headworks of Tieton Canal, 12 miles upstream

from Oak Creek, and 16 miles southwest of Naches. 

Drainage area.--239 sq mi (revised). 

Records available.--April to September 1906 (fragmentary gage-height records), July 1907

to September 1951. 

Gage. Water-stage recorder. Datum of gage is 2,280.44 ft above mean sea level, unadjusted.

Prior to July 28, 1909, staff gages at same site or sites within 1-j miles downstream at

different daturas. 

Average discharge.--42 years (1907-16, 1918-51), 546 cfs (adjusted for diversions since

1910 and for storage since October 1924).

Extremes.--Maximum discharge during year, 2,150 cfs June 10 (gage height, 4.93 ft); minimum, 19 cfs Feb. 28 (gage height, 1.57 ft).

1907-51: Maximum discharge, 8,910 cfs Dec. 22, 1933 (gage height, 9.70 ft); no flow

at times in 1926, 1929, 1931, 1932, 1934, 1945. 

Remarks .--Records good. Diversion for irrigation by Tieton Canal. Plow reg-jlated by

Tieton Reservoir, 7 miles above station. 

Cooperation. Gage-height record collected in cooperation with, and six discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

2.4 

3.0 

4.0 

4.3

195

470

1,230

1,500

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Ac-ft

(t)

(*)

Oct.

452

310

350

355

350

345

345

350

350

360

355

355

355

355

375

380

375

*365

370

395

420

426

410

405

405

400

415

420

410

410

410

11,778

380

23,360

+3,020

Nov.

420

426

459

454

454

518

628

628

635

642

649

649

663

663

663

663

712

772

733

733

748

820

812

876

908

948

* 1.000

964

924

900

"

21,064

702

41,780

-520

0| 1,040

Dec.

892

868

868

860

828

*828

812

804

812

812

820

820

820

812

804

796

796

796

796

188

804

908

1.060

1,020

996

956

916

892

884

876

852

26,596

858

52,750

+5,040

0

Jan.

836

844

844

836

820

820

820

820

820

812

812

*804

804

804

804

796

796

788

7'-0

,'30

788

780

780

788

820

836

828

820

812

812

804

25,108

810

49,800

-18,260

0

Feb.

796

670

670

670

*621

448

375

380

705

836

500

360

262

206

284

410

426

415

544

726

836

916

916

924

948

956

972

514

-

-

~

17,286

617

34,290

+15,100

802

Mar.

948

852

764

756

756

764

764

764

677

614

607

593

600

607

656

649

642

642

*642

628

663

656

586

530

551

572

512

448

454

390

550

19,637

633

38,950

-10,420

323

Apr.

355

375

410

464

482

470

470

47O

470

454

442

442

415

437

380

345

*340

310

246

242

266

246

234

216

216

202

220

266

246

234

"

10,365

346

20,560

+35,880

5,230

May

288

306

206

226

242

266

*258

223

230

262

459

310

246

220

209

226

254

250

230

226

242

415

677

788

908

1.040

1,030

1,000

996

988

876

14,097

455

27,960

+54,360

17,960

June

677

551

551

60O

788

*876

932

900

940

1,100

1,100

1,230

1,320

1,320

1,500

1,410

1,280

1,140

1,040

972

956

908

892

884

828

804

780

756

726

726

"

28,487

950

56,500

+2,720

17,750

July

705

691

684

649

565

482

420

426

512

656

772

772

860

956

948

*932

868

876

884

884

884

884

916

948

948

940

940

844

964

1.060

932

24,802

800

49,190

-31,260

20,320

Aug.

876

884

884

884

956

1,OOO

1,030

1,040

1,040

1,040

1.050

1,010

868

756

698

677

705

820

836

844

844

852

*932

996

884

796

844

788

691

642

642

26,809

865

53,170

-52,580

20,700

Sept.

635

628

628

628

628

635

635

635

635

621

586

572

512

512

512

512

506

512

551

586

*593

600

614

586

593

593

579

470

405

426

"

17,128

571

33,970

-34,710

18,220

Adjusted for change in reservoir contents and diversio

Mean

Cfsm

In.

Ac-ft

429

1.79

2.07

26,380

711

2.97

3.32

42,300

940

3.93

4.53

57,790

513

2.15

2.47

31,540

904

3.78

3.94

50,190

469

1.96

2.26

28,850

1,036

4.33

4.84

61,670

1,631

6.82

7.87

100,300

1,294

5.41

6.04

76,970

622

2.60

3.00

38,250

346

1.45

1.67

21,290

294

1.23

1.37

17,480

Calendar year 1950: 

Water year 1950-51:

Calendar y 

Water year

ear 1950: 

1950-51:

Max 

Max

Mean 

Mean

1,900 

1,500

824 

764

Min 

Min

Ad jus

310 

202

ted

Cfsm 3. 

Cfsm 3.

45 

20

Mean 

Mean

In. 

In.

718 

666

46.79 

43.38

Ac-ft 

Ac-ft

Ac-ft 

Ac-ft

519, 

482,

596, 

553,

800 

300

400 

000

* Discharge measurement made on this day.

t change in contents in Tieton Reservoir, in acre-feet.

* Diversion by Tieton canal, in acre-feet.
326 YAKIMA RIVER BASIN

Naches River below Tleton River, near Naches, Wash.

Location. Lat 46°44'40", long. 120«46'00", In SWi-NEi sec. 36, T. 15 N., R. 16 E., on left 

bank half a mile downstream from Wapatox power canal, three-quarters cf a mile downstream from Tleton River, and 3i miles northwest of Naches.

Drainage area.--941 sq ml (revised).

Records available. August to October 1905, November 1908 to October 1912, and May 1915 

to September 1951 In reports of Geological Survey. September 1905 and October 1908 to 

September 1912 (mean monthly discharge) In State Water-Supply Bulletin 5.

Gage. Water-stage recorder. Datum of gage Is 1,549.67 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Prior to Dec. 7, 1916, staff gage and Dec. 7, 

1916, to Sept. 9, 1936, water-stage recorder at site five-eighths of a mile upstream 

at different datums. Sept. 10 to Oct. 30, 1936, staff gage at present site and datum 12.27 ft lower.

Average discharge. 39 years (1908-12, 1916-51), 1,670 cfs (adjusted for diversions by 

Selah Valley and Tleton Canals since 1909, city of Yakima at Oak Plat since 1935, and 

by Wapatox Canal since 1935, and for change In contents In Bumping Lake since November 

1910, and In Tieton Reservoir since October 1924).

Extremes. Maximum discharge during year, 9,370 cfs May 11 (gage height, 16.48 ft): minimum, 74 cfs Oct. 2 (gage height, 10.10 ft).

1905, 1908-12, 1915-51: Maximum discharge, 32,200 cfs Dec. 22, 23, 1933 (gage 

height, 14.33 ft, site and datum then In use); minimum, 1 cfs Nov. 7, 1942, and many 

days during winter of 1943-44, result of regulation and diversion.

Remarks.--Records good except those for periods of ice effect, which are poor. Plow regulated by Bumping Lake and Tieton Reservoir (see p. 336 ), by diversion at Oak Plat for 

municipal supply of city of Yakima below station, and by diversion of Selah Valley, 

Tieton, and Wapatox Canals. Small unmeasured diversions for irrigation of approximately 420 acres above station.

Cooperation. Gage-height record collected In cooperation with, and seven discharge 

ments furnished by Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17ie

19

20

21

22

23

24

25

26

27 

28 

29 

30

31

Total

Mean

flc-ft

It) (*)'

Oct.

187

105 

113

117

127

150

133

133

148

224

474

 282

179

174

174

187

182

165

206

318

336

2S8

246

227

270

450

588 

678 

582 

516

498

8,457

273

16,770

US ,940

35,580

Nov.

672

636

890

1,030

1,020

1,030

946

862

814

781

748

703

690

690

703

722

939

890

855

953

1,300

1,540

1,840

2,500

3,180

5.750 

*3,540 

3,000 

2,740

-

40,366

1,346

80,060

+14,490

32,880

Dec.

2,580

2,420 

2,340

««.,i90

2,190

2,120

2,120

2.050

2,120

2,190

2,340

2,260

2,420

2,420

2,420

2,340

2,340

2,340

2,340

2,340

2,500

3,000

4,700

5.100

4,900

4,600

4,020 

3,640 

3,270 

3,180

2,920

87,710

2,829

174,000

-14,020

30,800

Jan.

2.740

2,740 

2,580

2,500

2,340

2,190

2,050

1,980

1,840

1,720

1,600

1,540

1,480

1,480

1,480

1,430

1,380

 1,320

1,290

1,280

1,280

1,240

1,220

1.190

1,310

1,480

1,480 

1,340 

1,240 

bl,200

bl,200

51,140

1,650

101,400

-23,830

29.210

Feb.

*bl,200

bl,200 

bl,150

bl , 100

1,040

855

768

848

2,190

4,800

5.100

4,400

 3,360

2,740

2,420

2,340

2,120

1,910

1,840

1,980

1,980

1,980

1,910

1,980

1,980

1,840

1,840 

1,480

-

58,351

2,084

115,700

f 20, 140

'27,810

Mar.

1.780

1,660 

1,480

1,540

1,480

1,410

1,350

bl,200

bl,150

bl.100

1,070

1,050

1,050

1,060

1,200

 1,260

1,180

1,170

1,160

1,220

1,320

1,320

1,250

1,180

1,230

1,270

1,230 

1,180 

1,190 

1,060

1.040

36,940

1,256

77,240

-18,160

31,330!

Apr.

1,050

1.020

1,210

1,720

2,260

2,420

2,580

2,660

2,660

2,500

2,420

2,580

3,000

3.750

5,640

3,360

3,450

*3,730

3,270

2,740

2,580

2,340

2,120

2,050

2,190

2,340

2,420 

2,580 

2,580 

2,340

75.54Q

2,518

149,800

+49,500-

I 40,500'

May

2,190

2,120 

1.660

2,260

2,920

3,090

*3,450

3,540

3,640

4,300

8.050

7,780

5,510

4,500

4,020

4,110

4,900

5,100

4,700

4,300

4,200

4,700

5,720

5,720

5,300

4,500

4,400 

4,200 

3,820 

3,540

3,180

131,400

4,239

260,300

+71,300

57,5101

June

2,740

 2,500 

2,580

2,740

3,000

3,180

3,180

3,000

3,180

3,450

3,730

4,110

4,300

4,300

4.800

4,700

4,110

3,730

3,360

3,180

3,000

2,830

2,740

2,660

2,500

2,420

2,420 

2,190 

2,120 

2.050

94,800

3.160

188 ,DOO

+2,560

56,6101

July

2.130

1,6+0 

1,770

1,640

1,410

1,ZOO

1,C50

1,C40

1,340

1,340

1,390

1,370

1,460

1.E20

1,460

»1,Z60

1,130

1,510

1,290

1,?30

1,180

1,150

1,160

1,150

1,150

1,130

1,C90

m1,180

1,040

40,710

1,513

80,750

-42,910

59,910i

Aug.

1,000

1,000 

986

993

1.070

1,060

1,060

1,040

1,010

1,000

1,010

895

776

 741

608

545

531

643

657

671

650

643

685

727 615'

471'

524 

524 

439 

374

358

23,306

752

46,230

-64,650

ei.zsa

Sept.

341

336 

336

325

315

310

315

325

330

325

 315

320

325

320

320

320

325

315

330

558

315

280

248

223

215

253

244 

174 m

8,703

290

17,260

-43,560

 bS.ltO

Adjusted for change In lake and reservoir contents and diversion

Mean

Ac-ft

1,111

1.18

1.36 

63,290

2,141

2.28

2.54 

127,400

3,103

3.30

3.80 

190,800

1,737

1.85

2.13 

106,800

2,946

3.13

3.26 

163,600

1,470

1.56

1.80 

90,410

4,030

4.28

4.78 

239,300

6,333

6.73

7.76 

389,400

4,154

4.41

4.93 

247,200

1,590

1.69

1.95 

97,750

697

0.741

0.85 

42,830

501

0.532

0.59 

29,840

Calendar year 1950: 

Water year 1950-51:

Max

Max

7,290 

8^030

Mln 105 

Mln 105

Meanl 1,962 

Mean 1,807

Ac-ft 

Ac-ft

1,420,000 

1,308,000

Adjusted

Calendar year 1950: 

Water year 1950-51:

Mean 

Mean

2,611

2,473

Cfsm 2.77 

Cfsm 2.63

In. 37.65 

In. 35.75

Ac-ft 

Ac-ft

1,890,000 

1,794,000

* Discharge measurement made on this day.

t Change in contents In Bumping Lake and Jletpn Reservoirs, In acre-feet.

* Diversions, In acre-feet, by Tleton, Selah Valley, and Wapatox Canals, and City of Yaklma

(furnished by water superintendent of City of Yaklma). 

b Stage-discharge relation affected by Ice.
YAKIMA RIVER BASIN 327

North Pork Ahtanum Creek near Tamplco, Wash.

Location. Lat 46°33'40", long. 120°55'10", In NW£ sec 2, T. 12 N., R. 15 E., on left 

bank 150 ft (revised) downstream from Nasty Creek, 3f miles upstream from Tamplco and 

confluence with South Pork, and 20 miles west of YaKima.

Drainage area. 68.9 sq mi (revised).

Records available. August 1907 to September 1924, March 1931 to September 1951. No winter 

records 1907, 1908, 1916-24.

Page. Water-stage recorder and sharp-crested weir. Altitude of gage is 2,450 ft (from 

topographic map). Prior to Apr. 2, 1913, and Aug. 20, 1915, to Sept.- 5, 1916, staff 

gage and Apr. 2, 1913, to Aug. 19, 1915, Sept. 6, 1916 to Sept. 30, 1924, a"d Mar. 1 

1931, to Sept. 19, 1934, water-stage recorders at site 50 ft upstream at different

Average discharge. 26 years (1909-15, 1931-51), 68.3 cfs.

Extremes. Maximum discharge during year, 655 cfs May 11 (gage height, 2.70 ft); minimum, 

TTcTs Nov. 19 (gage height, 0.29 ft).

1907-24, 1931-51: Maximum discharge, 770 cfs May 27, 1948 (gage height, 2.97 ft); 

maximum gage height, 4.6 ft June 18, 1916 (site and datum then in use); minimum dls*- 

charge, 5.0 cfs Nov. 14, 15, 1944, Jan. 20 1945 (gage height, 0.18 ft), but may have 

been less during periods of ice effect.

Remarks. Records good except those for periods of no gage-height record, which are poor. 

No diversion of importance. No regulation.

Cooperation. Gage-height record collected in cooperation with, and 12 discharge measurements furnished by Office of Indian Affairs.

Rating table, water year 195O-51 (gage height, In 

feet, and discharge, In cubic feet per second)

0.3 

.5

18

41 2.0 

2.5

245

595

574

Discharge, In cubic feet per second, water year October -195O to September 1951

Day

1 

2

3

4

5

6

7

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.

Ae-rt

Oct.

26

25

26

30

34

33

30

26

 26

32

31

 28

27

27

27

26

28

33

36

38

31

30

27

27

40

37

52

46

42

 40

37

998

32.2

0.467

0.54

1,980

Nov.

38 

38

44

51

57

40

45

42

34

34

36

34

31

32

33

37

34

30

23

34

41

46

48

85

103

119

iiS

131

109

99

-

1,684

56.1

0.814

0.91

3,340

Dec.

 90 

78

76

69

66

73

68

£5

76

83

 83

85

83

83

81

81

80

76

78

81

85

107

194

g06

204

184

1«3

150

140

129

117

3,234

104

1.51

1.75

6,410

Jan.

109 

107

 99

94

80

71

73

73

76

73

73

69

66

66

68

66

65

 60

54

52

a60

a60

a50

57

58

58

a50

a45

a40

a35

a35

2,042

85.9

0.956

1.10

4,050

Feb.

aSS 

a35

a40

a4S

a45

 54

a60

68

243

471

4'35

344

262

216

184

157

138

121

 111

101

96

90

86

83

80

74

73

68

_

_

-

3,821

136

1.97

2.06

7,580

Mar.

69

66

65

66

57

49

44

a40

a40

a50

a40

a40

a35

a50

a80

a70

a70

68

71

80

86

88

86

90

96

101

103

 103

107

103

101

2,213

71.4

1.04

1.19

4,390

Apr.

103 

111

133

166

196

204

214

216

227

2Z2

214

219

248

290

279

279

299

508

 285

256

229

216

202

189

192

204

209

202

187

177

-

6,476

216

3.13

3.50

12,840

May

170 

166

170

192

202

214

227

245

265

314

566

474

379

 329

311

338

382

369

344

335

348

376

418

379

348

326

317

299

267

245

224

9,539

SOS

4.47

5.15

18,930

June

214 

21*

219

251

265

265

251

 242

248

259

279

296

302

311

314

290

267

253

237

224

212

204

196

189

177

170

166

155

148

1*2

6,960

232

3.37

3.76

13,800

July

138 

133

125

117

Hi

103

96

92

as

85

 78

76

71

68

66

61

60

58

55

55

54

52

51

48

46

46

45

42

42

41

40

2,243

72.4

1.05

1.21

4,450

Aug.

 40 

40

38

38 '40

38

38

38

40

37

38

38

36

37

 37

36

34

33

32

32

31

31

31

30

30

30

2S

36

34

31

30

1,084

35.0

0.508

0.59

2,150

Sept.

32. 

28

27

 27

27

26

27

27

26

26

26

25

25

25

25

25

24

23

22

22

22

22

22

 23

23

23

23

23

23

30

-

746

24.9

0.361

0.4O

1,480

Calendar year 1950: Max 381 Min 9 Mean 94.6 Cfsm 1.37 In. 18.65 Ac -ft 68,520

Water year 1950-51: Max 566 Mln 22 Mean 112 Cfsm 1.63 In. 22.16 Ac-ft 81,390

Peak discharge (baae. 200 cfs). Dec. 24 (8 to 12 p.m.) 209 efs (1.36 ft): Feb. 10 (fi p.m. SSZ

efs (3.33 ft); Apr. 17 (11 p.m.) 655 (Sfs (1.67 ft); May 11 (6 a.m.) 655 cfs (2. TO ft); May 23

(11 P-m.) 432 cfs (2.11 ft); June 14 (10:30 p.m.) 341 cfs (1.83 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby stations, 1 discharge

measurement, recorded range in stage, and weather records.

288995 O - 54 - 22
328 YAKIMA RIVER BASIN

South Pork Ahtanum Creek at Conrad Ranch, near Tamplco, Waih.

Location.--Lat 46°30'30", long. 1200 54'50", In Wj sec. 23, T. 12 N., R. 15 E.. on left 

bank .at Conrad Ranch, 2| miles upstream from confluence with North Fo-k, 2f miles 

southwest of Tamplco, and 20 miles southwest of Yatcima.

Drainage area. 24.5 sq ml.

Records available.--March 1915 to September 1924 (fragmentary), March 1931 to September 

1951.

Gage.--Water-stage recorder. Concrete control since Sept. 6, 1916. Altitude of gage Is 

2,400 ft. (from topographic map). Prior to Aug. 9, 1918, staff gage at same site at datum 

1.00 ft lower. Aug. 9, 1918, to Mar. 22, 1951, staff gage at present site and datum.

Extremes. Maximum discharge observed during year, 365 cfs Feb. 10 (gage height, 2.50 ft); 

minimum discharge, 7.8 cfs Oct. 1, 2, but may have been less during a period of Ice 

effect.

1915-24, 1931-51: Maximum discharge observed, 424 cfs Dec. 23, 1933 (gage height, 

3.10 ft I, from rating curve extended above 80 cfs; minimum, 2.6 cfs Aug. 23, 25, 1931 

(gage height, 0.35 ft).

Remarks. Records good except those prior to Mar. 22, which are fair, an1 those for periods 

orice effect, which are poor. Diversion for Irrigation of about 55 acres above 

station. No regulation.

Cooperation. Gaee-helght record collected In cooperation with, and 13 discharge measurements furnished by Office of Indian Affairs.

Revisions (water years). W 312: 1910. W 902: 1939, drainage area.

Rating tables, water year 1950-51, except periods of Ice effect (gage 

height, In feet, and discharge. In cubic feet per second)

Oct. 1 to May 10

0.5 

.6 

.8

5.0

9.0

23

1.1 

1.6 

2.3

54

135

305

May 11 to Sept. 30

0.5 8.0 1.1 54

.7 17 1.5 115

.9 32 1.8 175

Discharge, in cubic feet per second, water year October 1950 to September 1951

n»y

i

2

3 

4

5

6

7

6

9

10

11

12

13

li

15

16

17

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

7^8 

7.8

9.0 

10.5

9.0

9.0

9.0

9.0

 9.0

9.0

9.0

*9.0

9.0

8.2

8.2

8.2

9.0

10.5

10.5

10.5

9.6

8.2

8.2

8.2

8.2

13

22.

20

13.5

 11.5

10.5

314.1

10.1

623

Nov.

11 

11.5

11.5 

13

13

13

12

12

11.5

10.5

1*0

975

9T5

9.0

10.5

11.5

10.5

13

13

13

18

20

19

22

28

36

il

38

33

30

-

512.5

17.1

1,020

Dec.

28 

24

22

20

 18

19

18

18.5

20

21

»22

24

26

26

25

26

26

27

29

32

35

40

67

Zi

70

60

53

47

46

41

34

1,038.5

33.5

2,060

Jan.

30 

5i 32 

28

27

24

21

21

21

21

20

18.5

18

17

16

15

16

 16

19

22

19

16

15

15.5

18

21

b!7

b!5

b!3

bll

bll

608.0

19.6

1,210

Feb.

bll 

bll

b!2 

b!3

b!5

*16

16

29

175

290

178

135

938*2

63

55

43

38

 37

37

37

33

28

28

25

23

27

28

_

_

-

1,578

56.4

3,130

Mar.

23 

20

18.5 

18.5

b!8

b!7

b!6

b!3

bll

b!4

b!2

15

13.5

15

18.5

22

22

22

24

26

27

29

30

30

32

33

34

 34

5£

35

34

714.0

23.0

1,420

Apr.

2£ 

36

41

57

66

66

63

59

»62

63

58

57

63

68

67

64

67

10

 64

58

52

48

44

41

41

41

42

42

40

39

-

1,614

53.8

3,200

May

37 

36

if

43

47

53

57

67

82

159

123

98

*85

78

80

92

96

93

90

92

98

96

98

92

92

88

87

82

72

63

2,452

79.1

4,860

June

»55 

57

57 

63

59

64

64

 66

63

66

66

70

70

72

22

78

73

68

60

57

55

52

48

46

43

39

37

36

36

3i

1,733

57.8

3,440

July

22 

29

29

28

28

26

24

23

22

21

»ro

19.5

19.5

19

18.5

17.5

17

17

16.5

16

16

15.5

ISIS. 5

15

15

14

14

14

14

14

605.5

19.5

1,200

Aug.

 la^s.

13.5

13 

13

13

12.5

12.5

12

11.5

11.5

11.5

11.5

11.5

11.5

 11.5

11.5

11.5

11.5

11

11

11

10.5

10.5

10.5

10.5

10.5

10.5

12.5

12

11.5

11

361.0

11.6

716

Sept.

10.5 

1575

10 

 10

10

9.8

10

9.8

9.8

9.8

9.4

9.4

9.4

8.9

8.9

8.9

8.9

8,1

8.

8.

8.

8.

8.

8.

8.4

8.9

8.9

8.9

8.9

10

-

276.8

9.23

549

Calendar year 1950: Max 1O5 Mtn 4.0 Mean 26.9 Ac -ft 19,500

Water year 195O-51: Max 290 Mtn 7.8 Mean 32.3 Ao-ft 23,430

Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
YAKIMA RIVER BASIN 329

Ahtanum Creek at Union Gap, Wash.

Location. Lat 46°32'10", long. 120B 28 t 15n , In SW$ sec. 8, T. 12 N., R. 19 E., on left 

bank just upstream from Union Pacific Railway bridge, a quarter of a mile upstream 

from mouth and 1 mile south of Union Gap.

Drainage area. 171 sq ml (revised).

Records available. May to November 1904, August 1907 to July 1908, March 1910 to September 1912 (fragmentary), May to September 1951. Published as "near Yakima" 1904, 1907- 

8, 1910-12.

Gage. Water-stage recorder. Altitude of gage Is 940 ft (from topographic map). Prior to 

Sept. 30, 1912, staff gages at approximately same site at different datums.

Extremes. Maximum discharge during period, 780 cfs May 12 (gage height, 2.75 ft); minimum, 

12 cfs Aug. 16, 17, 18 (gage height, 0.55 ft).

1904, 1907-8, 1910-12, 1951: Maximum discharge observed, 1,530 cfs Mar. 3, 1910 

(gage] height, 8.9 ft, datum then In use); no flow for many days during September and 

October 1904.

Remarks. Records good" except those below 20 cfs and above 400 cfs, which are fair, and 

those for period of no gage-height record, which are poor. Water diverted for Irrigation of about 9,000 acres above station. Occasional diurnal fluctuation from unknown 

cause.

Rating table. May 12 to Sept. 30, 1951 (gage height, 

in feet, and discharge, in cubic feet per second)

1.0 

1.3

1.6 

1.9 a.2

2.5 

2.8

110

180

305

515

840

Discharge, in cubic feet per second. May to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr.

Calendar year : Max Mln Mean

May

_

_

_

-

_

_

_

-

_

744

687

553

475

428

421

451

443

421

400

386

407

443

428

414

386

379

335

295

270

_

_

-

June

247

»234

226

270

335

428

428

*386

365

359

365

372

379

372

372

365

353

329

300

265

222

200

180

166

152

134

110

94

80

61

-

8,153

272

16,170

July

£3

59

47

45

47

41

39

38

36

35

35

29

28

26

30

29

27

27

25

25

23

25

28

25

21.

21

21

21

21

21

21

979

31.6

1,940

Aug.

21

20

20

20

20

20

20

20

20

20

19

19

*19.5

18.5

18

15

13

12.5

13 .5

15.5

17

16

17.5

*19.5

21

20

20

21

22

26

27

591.5

19.1

1,170

Sept.

27

26

27

28

28

28

28

28

29

30

30

29

28

28

27

27

27

27

26

26

26

26

27

*28

25

24

gg

28

29

M

827

27.6

1,640

Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

fio£e.--No gage-height record July 26 to Aug. 12; discharge estimated on basis of records for North 

Pork Ahtanum Creek near Tampico and South Pork Ahtanum Creek at Conrad Ranch, near Tampico.
330 YAKIMA RIVER BASIN

Yakima River near Parker, Wash.

Location. Lat 46°29'40", long. 120°26'10", in sec. 28, T. 12 N., R. 19 E., on left bank 

Just downstream from Sunnyside diversion dam, li miles east of Parker, and 3 miles 

downstream from Ahtanum Creek.

Drainage area. 3,650 sq mi (revised), approximately.

Records available. April 1908 to September 1951 (October 1921 to September 1931, monthly 

discharge only published in Water-Supply Paper 870). Prior to October 1916, published 

as "near Wapato."

Gage. Water-stage recorder. Datum of gage is 886.05 ft above mean sea level (Bureau of 

Reclamation benchmark). Apr. 25, 1908, to Feb. 17, 1909, hook gage at site 25 ft above 

headgate of Sunnyside Canal, with datum same as the elevation or crest of diversion 

dam. Feb. 18, 1909, to Oct. 23, 1914, chain gage and Oct. 24, 1914, to Aug. 16, 1915, 

staff gage at present site at datum 2,00 ft higher than present datum Feb. 18, 1909, 

to Dec. 31, 1913, and at present datum thereafter.

Extremes. Maximum discharge during year, 19,300 cfs Feb. 12 (gage height, 10.75 ft); minimum, 51 cfs Sept. 19 (gage height, 1.62 ft).

1908-21, 1931-51: Maximum discharge, 65,000 cfs Dec. 23, 1933 (gag? height, 15.0 

ft, from high-water marks); practically no flow for several days durin^ latter part of 

irrigation season In most years as result of diversions.

Remarks. Records good except those for periods of shifting control or no gage-height rec6737 which are fair. Diversions above station for irrigation of large area. During 

the irrigation season when Sunnyside Canal is carrying water, as much as 18 cfs, depending upon the stage of the canal, is released ahead of the fish screens and passes the 

river and canal gaging stations unmeasured. Some regulation by diversions and by 

Keechelus, Kachess, Cle Elum, and Bumping Lakes, and Tieton Reservoir (see p. 336).

Cooperation. Gage-height record collected in cooperation with and eight discharge measurements furnished by Bureau of Reclamation.

Revisions (water years). W 982: 1942. W 1122: 1934. Revised figures of discharge for 

water years 1949 and 1950, superseding those published in Water-Supply Papers 1152 and 

1182, are given herewith.

Day 

(water year)

1948-49

Jan. 5.

6.

7 f s!

10.' 9 .

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

Discharge 

(cfs)

3,480

3,570

3,660

3,400

,230

,740

,130

,570

,620

,620

,860

,810

,770

,670

,490

,190

,100

,100

,120

Day 

(water year)

1948-49

Jan. 24..

25..

26..

27..

28..

29..

30..

31..

Feb . 1 . .

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

Discharge 

(cfs)

1,060

978

966

977

1,010

1,030

1,050

1,070

,O7O

,080

,080

,070

,060

,050

,040

,O4O

,040

958

945

Day 

(water year)

1948-49

Pet . 12 .....

13 .....

14. ....

15... ..

1949-50

Jan. 5.....

6.....

7.....

8.....

9.....

10. ....

11.....

12 .....

13.....

14. ....

15.....

16.....

17 .....

Discharge 

(cfs)

901

867

832

1,180

,680

,940

, O8O

,080

,940

,370

,740

,7OO

,350

,100

,130

,170

1,260

Day 

(wat?r year)

1949-50

Jan. 18.

19.

20.

21.

22.

23.

24.

25.

26.

27.

28.

29.

30.

31.

Peb. 1.

2.

3.

Discharge 

(cfs)

1,120

1,210

1,320

1,740

1,730

1,680

1,520

1,420

1,410

1,410

,420

,420

,410

,420

,410

,410

,510

Month

Water year 1948-49 . .

Calendar year 1949 . .

Water year 1949-50..

Mean discharge In cubic feet per second

Yaklma 

River

near 

Parker

3., 004

3,291

3,613

Canal 

at

*il«3 

26.9

326

332

392

Union dap 

Canal

(estimated)

17.9

18.2

18.2

New 

Reservation 

Canal

869

868

856

.Old 

Reservation 

Canal

19.6

18.5

29.0

Sunnyside

canal

640

645

659

flow, 

Yskima

River and cpnals

4,876

5,173

5,567

flow of

Yakima River 

and canals

(acre -feet)

3,530,000

3,742,000

4,032,000
YAKIMA RIVER BASIN 331

Discharge, In cubic feet per second, of Yaklma River near Parker, Wash., 1948-51

1948-49

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19 

20

21

22

23 

24

25

26 

27 

28

29

30

31

Oct.

612 

596

292

211

340

399

 416

498

455

366

311

279

292

238

211

96

Ji

626

1,070

1,590

1,470

1,630 

1,700

1,820

1,760 

2,500 

2.980

2,966

2,900

2,090

Nov.

1,700 

1,650

1,570

1,470

1,460

1,550

1,330

1,310

1,260

1,260

1,250

 1,250

1,250

1.240

1,260

1,350

1,380 

1,570

1,380 

1,370

1,390

1,380

1,450 

1,820

2,980

5.060 

2,620 

2,440

2,370

2,500

-

Dee.

2.160 

2,300

2,740

2,590

2,520

2,440

2,520

2,660

2,740

2,740

3,660

4,020

4,110

4,300

4,400

4,400

4,500 

4,110

4,110 

4,580

4,680

4,780

4.880 

4,880

4,680

4,490 

5,250 

2,660

5,480

4,110

4,110

Jan.

3.930 

3,840

3,660

3,480

 5,480

5,570

3,660

5,400

3,230

2,740

2,130

1,570

1,620

1,620

1,860

1,810

1,770 

1,670

1,490 

1,190

1,100

1,100

1,120 

1,060

978

Iff 

1,010

1,050

1,050

1,070

Feb.

1,070 

1,080

1,080

1,070

1,060

1,050

1,040

1,040

1,040

958

945

901

867

852

1,T55

1,980

4.780 

3,660

3,400 

5,140

2,820

2,900

5,060 

2,900

2,980

5,060 

3,060 

5,140

_

_

-

Mar.

3.230 

37255

3,570

4,110

4,490

5,280

 5,700

6,350

 5,700

5,280

4,780

4,580

4,680

4,680

4,490

4,200

4,300 

4,880

6,350 

7.270

7,050

6,350

5,910 

5,700

5,910

5,490 

5,080 

4,680

4,300

5,840

5,570

Apr.

5,570 

5,750

 5,840

4,110

4,780

6,550

7,030

7,270

7,270

7,510

8,250

9,500

8,510

7,270

 6,570

6,800

7,750 

9,500

9.570 

9,050

7,750

6,570

5,280 

4,680

4,200

5,570 

5.520 

3,840

*4,680

4,490

-

May

3,480 

5,060

2,660

2,160

1,490

1.060 T/2S5

2,520

5,080

8,250

 10,700

11,900

 12,500

13,200

15,500

14.100

12,500 

10,100

8,250 

7,050

6,800

6,800

6,800 

6,800

6,800

7,270 

9,570 

10,700

10,400

9,570

8,770

June

8,000 

 7,270

6,800

6,550

7,270

9,500

10,400

10.700

"97505

 8,250

8,000

7,750

7,270

6,570

6,150

5,700

5,280 

4,490

4,020 

5,750

 2,450

1,650

1,450

1,960

2,160 

 1,960 

1,700

1,500

1,190

-

July

580 

474

752

940

655

345

416

 275

200

218

474

439

262

167

201

159

114 

188

416 

552

416

404

1

462 

498

 566

188

181

151

222

Aug.

572 

551

669

ITS

410

410

416

 604

466

612

455

279

253

316

455

577

292 

292

292

297

516

577

599 

351

556

416 

439 

459

462

410

188

Sept.

517 

290

217

26T

416

545

566

559

450

404

572

416

486

456

580

970

1,090 

1,100

,100 

 ,150

,190

,160

,100 

,120

,080

1,070 

1,270 

1,570

1,650

1.890

~

 Discharge measurement made on this day.

Mote. Stage-discharge relation affected by Ice Jan. 11 to Feb. 14. Shifting-control method 

used June 29 to Sept. 50.

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

30

31

Oct.

2,150 

2,220

2,080

2,010

2,150

2,150

2,220

2,150

2,150

1,050

1,170 

2,080

2,300

2,300

1,540

533

1,400

3,160

5,540

5,500

4,420 

4,600

4,510

 4,600

4,220

4,150 

5,950

5,950

4.700 

4] 320

4,520

Nov.

4,320 

4,220

5,860

5,680

5,590

3,420

5,420

2,760

2,080

2,010

1.940 

1,940

2,150

2,380

5,080.

5,000

 2,760

2,600

2,450

2,450

2,500 

2,220

2,300

3,160

4,420

4,510 

6,470

10.500

8,260 

6,820

-

Dec.

5.720 

57S55

5,100

4,800.

4,420

4,150

 5,860

5,590

3,420

3,540

5,080 

5,080

5,080

2,920

2,840

2,840

2,840

2,840

2,760

2,520

2,680 

2,760

2,760

2,580

2,010

1.870 

27575

2,150

5,000 

2,920

2,680

Jan.

2.450 

2,150

1,870

1,500

1,680

1,940

2,080

2,080

1,940

1,870

1,740 

1,700

1,550

1.100

1,150

1,170

1,260

1,120

 1,210

1,520

1,740 

1,750

1,680

1,520

1,420

1,410 

1,410

1,420

1/420 

1,410

1,420

Feb.

1.410 

1,410

1,510

1,940

2,600

2,600

2,600

2,520

2,450

2,450

2,600 

2,680

2,680

2,600

2,450

2,450

2,680

2,450

2,450

2,500

2,220

2,150

2,080

 2,450

3,680

4.900 

4,800

4,320

-

-

Mar.

5,860 

3,770

3,770

6,370

8.000

8,000

7,050

6,150

5,510

4,900

4,700 

4,520

4,130

3,950

3.500

3,590

3,950

5,100

5,000

4,700

4,510 

4,420

4,520

 4,150

4,040

5,950 

5,770

3,680

3,590 

3,500

3,680

Apr.

 4,320 

5,510

5,300

4,900

4,600

4,700

4,700

4,510

4,420

3,950

5,770 

3,860

4,420

4,800

4,800

5,100

5,720

5,930

5,510

5,100

6.590 

6,590

5,510

4,600

3,860

5,160 

2,520

2,150

2,010 

1.940

-

May

2.080 

2,220

2,760

2,680

2,500

2,220

2,220

 2,380

2,680

5,420

4,700 

7,050

10,800

12.600

11,400

10,200

9,540

8,520

7,050

6,150

6,570 

8,260

 8,520

7,520

7,050

7,280 

8,520

9,620

9,060 

8,260

 8,000

June

8,000 

8,260

8,520

8,520

9,540

8,780

7,760

6,820

6,150

5.720

6,150 

7,050

8,000

8,260

9,060

9,060

 10,500

11,400

11,400

11,400

12.300 

 il,706

10,200

9,620

9,060

8,000 

6,590

6,590

7,760 

9,620

-

July

10.800 

10,500

9,620

8,780

8,260

8,000

7,280

6,590

5,510

4,510

*5,770 

4,520

4,510

2,230

265

970

1,000

851

 950

1,010

855 

788

833

932

887

779 

642

730

833 

668

477

Aug.

582 

650

674

754

770

746

860

674

561

505

498 

334

526

626

634

1,010

1.050

1,030

750

762

842 

 582

575

722

860

626 

400

340

370 

477

449

Sept.

714 

925

869

869

950

941

950

925

1,040

1,110

1,120 

1,040

1,040

990

1,000

1,030

1,050

1,040

960

853

770 

730

690

561

615

714 

853

1,270

1.590 

1,050

-

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Jan. 15 to Feb. 5. Shift ing-con tr >! method used 

Oc77T-17.
332 YAKIMA RIVHl BASIN

Discharge, In cubic feet per second, of Yaklma River near Parker, Wash., 1948-51 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

Oct.

1,150

1,130 

1,080

1,040

1,080

1,300

1,320

1,200 

1,170

1,190

1,710

762 

561

1,555

1,190

1,740 

2,300

2,300

2,380

 2,760

3,500

3,420

3,340

3,250 

3,250

3,420

3,590

ftHs

3^860

3,770

Nov.

3,860

3,950 

3,950

,510

,900

,000

,900

,800 

,700

,600

,510

,320 

,320

,220

,220

,320 

» ,770

,950

3,590

3.420

3,420

3,680

4,800

5,000 

5,930

7,520

8,260

8.520 

77765

6,820

-

Dec.

*6,370

5,930 

5,720

5,510

5,300

5,100

5,100

5.000 

5,300

5,930

6,150

6,590 

6,590

6,590

6,370

6,370 

6,590

6,820

6,820

6,820

7,050

7,520

10,200

13,000 

13.300

13,000

11,400

10,200 

9,340

8,780

8,260

Jan.

7.76Q

7^760

7,520

6,820

6,590

6,370

6,150 

5,930

5,720

5,510

5,300 

5,300

5,300

5,300

5,300 

5,100

5,000

*5,000

4.800

4,800

4,800

4,800

4,800 

4,900

5,510

5,930

.5,720 

a5,600

85,500

a5,300

Feb.

a5,200

 5,100 

4,900

4,900

4,800

4,600

4,320

4.130

57T55

13,100

17,700

*18.500 

14,766

11,400

9,900

9,060 

8,780

8,520

8,000

8,000

8,000

7,760

7,760

7,520 

7,520

7,520

7,050

6,820

-

-

Mar.

6,590

6.820 

6,376

6,370

6,150

6,150

5,930

5,720 

5,510

5,100

5,100

5,000 

5,000

5,100

5,300

6,590 

5,930

5,720

5,510

5,720

*5,930

5,720

5,300

4,900 

4,900

4,900

4,900

4,600 

4,420

4,220

4.040

Apr.

3,930

3,930 

4,300

5,280

6,800

7,510

7,510

7,510 

7,270

6,570

6,130

*5,910 

6,570

8,250

8.510

7,510 

6,800

6,800

6,130

4,980

4,110

3,320

2,590

1.890 

T7ft5

2,090

2,230

2,630 

2,740

2,370

-

May

 1,820

1,630 

612

775

2,300

3,320

4,020

4,490 

4,490

4,780

8,770

15.100 

11,300

8,250

6,130

5,910 

7,030

8,000

8,000

7,270

6,570

6,350

7,270

8,510 

8,250

7,750

6,800

5,910 

5,280

4,580

*3,570

June

2,660

2,230 

2,370

3,230

4,490

6,130

6,570

6,130 

5,700

5,700

5,910

5,910 

6,570

6,570

6,570

7.030 

6,570

5,490

4,300

3,400

3,140

2,900

2,520

2,370 

2,370

2,230

2,090

1,820 

1,630

1.350

-

July

1,350

1.370 

1,22(5

970

669

538

330

104 

70

73,

159

*110 

79

253

321

335 

156

181

288

262

230

149

181

175 

167

258

297

279 

97

283

*326

Aug.

194

258 

345

154

146

275

288

326 

292

306

316

311 

462

538

*480

234 

204

253

230

238

297

311

137

230 

258

351 

820

Til

628

Sept.

456

135 

68

94

90

99

162

253 

175

208

144

137 

162

112

110

117 

146

79

*!£

fl

151

178

208

238 

270

393

388

326 

335

393

-

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station at K'ona and weather 

records.

Note. Shifting-control method used Mar. 23 to Sept. 30.

Monthly discharge, In cubic feet per second, 11948-51 i

Month

Calendar year 1948.. 

January 1949 ..........

May...................

June ..................

September .............

Water year 1948-49 . .

Mean discharge In cubic feet per second

Yaklma 

River 

near 

Parker

981 

1,648 

3,657

3,029

2,038 

2,003 

5,OOO 

6,207 

7,584 

5,306 

360 

397 

827

3,004

Roza 

Canal 

at 

mile 

26.9

185 

0 

0

280

0 

0 

57.2 

465 

672 

743 

7X8 eSi

436

326

Union Gap 

Canal 

(estimated)

8 

0 

0

16.5

0 

0 

0 

10 

40 

40 

40 

40 

35

17.9

New

Reservation 

Canal

385 

0 

0

824

0 

0 

73.5 

832 

2,061 

1,967 

1,974 

1,718 

1,358

869

Old 

Reservation 

Canal

2.14 

4.06 

6.86

14.3

6.10 

5.28 

9.37 

18.0 

93.5 

42.7 

29.0 

9.53 

6.93

19.6

Sunnyside 

Canal

435 

0 

0

631

0 

0 

118 

975 

1,251 

1,271 

1,288 

1,271 

1,030

640

Combined

flOl',

Yaklma 

River and 

canals

1,996 

1,652 

3,664

4,795

2,044 

2,008 

5,258 

8,507 

11,700 

9,370 

4,409 

4,057 

3,693

4,876

Combined 

flow of 

Yaklma River 

and canals 

(acre-feet)

122,700 

98,300 

225,300

3,481,000

125,700 

111,500 

323,300 

506,200 

719,400 

557,600 

271,100 

249,500 

219,700

3,530,000

Note. New Reservation, Old Reservation, and Sunnyslde Canals divert from river above station and 

below Union Gap. Roza and Union Gap Canals head above Union Gap but records given herein show flow 

In these canals that reaches the valley below Union dap. Records for Roza and Sunryside Canals furnished by Bureau of Reclamation. Records for Union (Jap Canal estimated on basis of discharge measurements and records of flow at canal headworks. Combined flow represents flow of Yaklma River that 

reaches valley below Union dap.
YAKIMA. RIVER BASIN 333

Monthly discharge., in cubic feet per second, of Yakima River near Parker, Wash., 1948-51 Continued

Month

December. ...........

Calendar year 1949

April ...............

Mft-v

July................

September ...........

Water year 1949-50

Calendar year 1950

March...............

April...............

May.................

July. ...............

Water year 1950-51

Mean discharge In cubic feet per second

Yakima 

River 

near 

Parker

2,883 

3,636 

3,212

3,291

1,588 

2,622 

4,642 

4,495 

6,491 

8,720 

3,488 

652 

933

3,613

2,184 

4,917 

7,517

4,024

5,733 

8,238 

5,468 

5,138 

5,962 

4,198 

364 

318 

191

4,159

Roza 

Canal 

at 

mile 

26.9

216

0 

0

332

0 

0 

139 

491 

749 

837 

856 

779 

644

392

305

0 

0

402

0 

0 

0 

586 

885 

790 

866 

742 

480

390

Union dap 

Canal 

(estimated)

12

0 

0

18. Z

0 

0 

0 

15 

40 

35 

35 

40 

40

18.2

12 

0 

0

18.2

0 

0 

0 

25 

35 

40 

35 

35 

35

18.2

New 

Reservation 

Canal

371

0 

0

868

0 

0 

154 

829 

2,069 

1,765 

1,919 

1,726 

1,378

856

346

0 

0

854

0 

0 

61.6 

1,144 

2,014 

1,694 

1,875 

1,733 

1,414

862

Old 

Reservation 

Canal

0 

0 

0

18.5

1.35 

6.39 

44.0 

49.1 

111 

51.3 

66.1 

11.4 

4.54

29.0

1.58 

6.90 

7.06

30.3

25.7 

18.7 

19.7 

69.2 

116 

52.6 

56.9 

51.2 

12.1

36.7

Sunnyside 

Canal

494

0 

0

645

0 

0 

216 

947 

1,244 

1,309 

1,301 

1,262 

1,092

659

479

0 

0

658

0 

0 

176 

1,005 

1,281 

1,289 

1,273 

1,272 

1,029

654

Combined 

flow, 

YakimR 

River and

canals

3,976 

3,636 

3,212

5,173

1,569 

2,628 

5,197 

6,826 

10,700 

12,720 

7,665 

4,470 

4,092

5,567

3,328 

4,924 

7,524

5,93*

5,759 

8, 25' 

5,723 

7,967 

10,290 

8,064 

4,470 

4,151 

3,161

6,120

Combined 

flow of 

Yakima River 

and canals 

(acre-feet)

244,500 

216,400 

197,500

3,742,000

97,700 

146,000 

319,600 

406,200 

657,900 

756,900 

471,300 

274,800 

243,500

4,032,000

204,600 

293,000 

462,600

4,334,000

354,100 

458,600 

352,000 

474,100 

632,700 

479,800 

274,800 

255,200 

188,100

4,430,000

Note. New Reservation, Old Reservation, and Sunnyside Canals divert from river a^ove station and 

below Union dap. Roza and Union flap Canals head above Union Clap but records given herein show flow 

In these canals that reaches the valley below Union Sap. Records for Roza and Sunivside Canals furnished by Bureau of Reclamation. Records for Union dap Canal estimated on basis of discharge measurements and records of flow at canal headworks. Combined flow represents flow of Yakima River that 

reaches valley below Union Gap.
334 YAKIMA RIVER BASIN

Yakima River at Kiona, Wash.

Location. Lat 46°15'10", long. 119°28'50", In sec. 19, T. 9 N., R. 27 E., on left bank 

Just upstream from highway bridge at Kiona, 3^ miles downstream from Intake of Kiona 

Canal and 25 miles upstream from mouth.

Drainage area. 5.600 sq mi (revised), approximately.

Records available. August to December 1895 (gage heights only, fragmentary), August 1896 

to March 1915, February 1933 to September 1951.

Gage. Water-stage recorder. Datum of gage is 454.41 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Prior to July 27, 1934, staff, wire, chain, or 

steel tape-weight gages at highway bridge at datum 1.00 ft lower prior to Feb. 6, 1933, 

and at present datum thereafter.

Extremes. Maximum discharge during year, 20,900 cfs Feb. 13 (gage height, 12.99 ft); minimum, 1,550 cfs July 19, 20, 30, 31 (gage height, 3.78 ft).

1896-1915, 1933-51: Maximum discharge, 67,000 cfs Dec. 23, 1933 (gage height. 21.57 

ft, from high-watermarks); minimum, 105 cfs Sept. 11, 1906 (gage height, 2.35 ft).

Remarks. Records good except those for periods of shifting control, ice effect, or no 

gage-height record, which are fair. Water diverted above gage for irrigation of about 

424,000 acres. Some regulation by diversions and by Keechelus, Kachess, Cle Elum, and 

Bumping Lakes, and Tieton Reservoir (see following page).

Cooperation. Gage-height record collected in cooperation with and 6 discharge measurements 

furnished by Bureau of Reclamation.

Revisions (water years) . W 214: 1905. W 1122: 1934{M). Revised figures of discharge 

for water years 1949 and 1950, superseding those published In Water-Supply Papers 1152 

and 1182, are given herewith.

Day 

(water year)

1948-49

Dec. 27....

28.

29.

3O.

31.

Jan. 1.

2.

3.

4 .

5.

6.

7 t

8.

9.

1O.

11.

12.

13.

14.

15.

16.

Discharge 

(of s)

5,O8O

3,730

3,O70

3,980

4,650

4,490

4,260

4.O7O

3,930

3,570

3,410

3,670

4.O3O

3,630

3,430

3,280

2,690

2,250

2.42O

2,480

2,410

Day

1948-49

Jan. 17. ...

18.

19.

2O.

21.

22.

23.

24.

25.

26.

27.

28.

29.

30.

31.

Feb. 1.

2.

3.

4.

5.

6.

Month

February ............................

Calendar year 1949 ................

February

Water year 1949-5O. ...............

Discharge 

(cfs) B

2,340

2.21O

2.O7O

1,810

1,650

1,540

1.55O

1,550

1,480

1.43O

1,390

1,390

1,420

1,45O

1,520

1,550

1,560

1.55O

1,530

1,510

1.5OO

Day

1948-49

Feb . 7 .....

8.....

9.....

1O .....

11.....

12.....

13 .....

14.... .

15.....

16 .....

1949-50

Jan. 4.....

5.. ...

6.. ...

7.....

8.. ...

9.. ...

1O.. ...

11.....

12 .....

Cf 3-days

83,010

1,697,320

74,810

1,839,390

Maximum

5 530

6,440

15,200

3,620

14,700

Discharge 

(cfs)

1,520

1,530

1,530

1,510

1,370

1,320

1,290

1,32O

1,670

2,470

2,36O

2,420

2,750

2,820

3,100

3,030

2,96O

2.82O

2,680

Minimum

1,290

1,290

1,660

1,660

Day 

(water year)

194f-50

Jan. i;.....

1*.

15.

If.

IT. is. if.

2?.

24.

ZZ.

2e.

27.

2f .

2S.

3C.

31.

'eb. 1.

2 .

3.

4.£" .

Mean

2,965

4, 6n

2,413

5,039

Discharge 

(cfs) 6

2.3OO

2,680

1,8SO

1,660

1,740

1,860

1.87O

2,580

2,410

2,220

2.O7O

2,O4O

2,000

1,99O

1,970

1,950

1,98O

2.OOO

2,03O

2,230

3,480

Runoff in 

acre- feet

164,600

3,367,000

148,400

3,648,000

Rating table, water year 195O-51, except periods of Ice effect ard 

shifting control (gage height, In feet, and discharge, 

In cubic feet per second)

3.8

5.0

8.O

1O.O

12.8

1,550

2,960

8,200

12,600

20,200
YAKIMA RIVKR BASIN 

Yakima River at Kiona, Wash.

335

Discharge, In cubic feet per second, water year October 1950 to Septembe- 1951

Day

1 

2

3

4

5

6

7

8 

9 

10

11

12 

13 

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29 

30 

31

Total

Mean

Ac-ft

Oct.

2.420 

2,420

2,480

2,480

2,620

2,680

2,890

2,890 

 2,820 

2,680

2,750

3,250 

2,820 

2,680

3,180

3,250

3,780

4,020

4,020

4,180

4,500 

4,840

4,670

4,500

4,340

4,340

4,500

4,500

4,840 

5.180

5,010

111,530

3,598

221,200

Nov.

 4,840 

4,840

5,010

5,010

5,530

5,890

5,890

5,890 

5,710 

5,710

5,530

5,530 

5,350 

5,180

5,180

5,180

5,180

4,840

5,010

 4,670

4.500 

4,566

5,010

5,890

6,250

7, EDO

8,400

 9,240

9.660 

9,030

175,650

5,855

348,400

Dec.

8,200 

 7,600

7,200

7,010

6,820

86,700

a6,550

36,400 

6.250 

6,440

7,010

7,400 

8,000 

8,000

7,800

7,800

8,OOO

8,400

8,610

8,400

8,610 

9,030

9,240

11,400

13,700

14,700

15.000

14^000

12,600 

11,600 

11,000

279,470

8,015

554,300

Jan.

10.500 

9,660

9,450

9,450

9,240

8,610

8,200

8,000 

7,800 

7,600

7,200

6,820 

6,630 

6,440

6,630

 6,630

6,440

6,440

 6,440

6,250

6,250 

6,250

6,070

6,070

b6,OOO

b5,800

b5,600

b5,500

b5.400 

 b5,400 

b5,400

217,970

£,031

432,300

Feb.

b5.400 

b5,400

b5,500

b5,600

b5,700

b5,800

b5,800

5,890 

6,630 

9,440

14,200

18,000 

 20.200

15)000

13,500

12,100

11,400

 10,800

10,300

10,100 

9,870

9,660

9,240

9,240

9,030

8,820

8,610

_

282,130

10,080

559,600

Mar.

m8,000

7,600

7,4OO

7,200

7,200

7,010 

6,820 

6,630

6,250

6.070 

6,070 

6,070

6,250

7,010

8,200

7,400

7,010

6,630

" 7,010 

 7,200

7,200

6,630

6,250

6,440

6,630

6,630

6,440 

6,440 

6,250

214,140

6,908

424,700

Apr.

6,070 

5,890

5,890

6,440

7,600

8,820

9,660

9,660 

9,660 

 9,450

8,820

8,200 

8,000 

8,610

9,870

10.300

9,450

8,820

9,030

8,610

7,200 

6,070

5,180

4,340

3,620

3.550

3,550

3,620

4,180 

4,340

214,500

7,150

425,500

May

 4,180 

3,550

3,250

2,620

2.550

3,860

5,010

5,710 

6,250 

6,070

6,820

10,400 

14'. 700 

 14,700

11,200

9,030

8,820

9,660

10,500

10,500

9,870 

9,030

8,820

9,660

10,800

10,800

10,300

9,240

8,610 

7,800 

6,820

251,130

8,101

498,100

June

6,070 

5,180

4,670

4,840

6,440

8,200

9,660

10.300 

9,870 

9,450

9,450

9,240 

9,240 

9,450

9,240

9,030

9,450

8,820

7,600

6,440

 5,350 

5,010

4,500

4,020

3,860

3,700

3,550

3,250

3,030 

2.750

201,660

6,722

400,000

July

Hff

2.55C

2.55C

2.36C

2.24C

2.07C

1,960 

1,750 

1,650

1,600

1,600 

1,650 

1,600

1,600

1,650

1,700

1,650

1.550 TjfSo

1,800 

1,850

1,800

1,750

1,750

1,700

1,600

1,600

1,600 

1,600 

1,600

57,010

1,839

113,100

Calendar year 195ft Max 15,000 Mln 1,660 Mean 5,511 Ac-ft 3,990,000

Water year 1950-51: Max 20,200 Mln 1,550 Mean 5,801 Ac-ft 4,200,000

Aug.

1.600 

1,666

1,600

1,600

1,600

1,600

1,600

1,600 

1,600 

1,600

1,600

1,650 

 1,650 

1,750

1,960

1,900

1,750

1,650

1,700

1,750

1,750 

1,750

1,700

1,650

1,600

1,700

1,650

1,650

1,850 

2,240 

2 . 480

53,380

1,722

105,900

Sept.

2.480 

2,366

2,120

2,020

2,020

2,020

1,960

1,900 

1,960 

1,960

1,900

1,850 

1,800 

1,750

1,700

1.650

1,650

1,650

1,650

 1,650

1,650 

1,750

1,900

 2,070

2,070

2,070

2,180

2,300

2,360 

2,420

58,820

1,961

116,700

 Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station near Parker, 

b Stage-discharge relation affected by Ice. 

Note. Shifting-control method used Sept. 22-30.
336 YAKIMA RIVER BASIN

Reservoirs In Yakima River basin, Wash.

Keechelus Lake.--Lat. 47°19', long. 121°20', in NE£ sec. 12, T. 21 N., R. 11 E., at dam 

on Yakima River at outlet of Keechelus Lake, 3| miles northwest of Martir and 9f miles 

northwest of Easton. Records available, January 1906 to September 1951. Staff gage 

read twice daily. Datum of gage is at mean sea level (Bureau of Reclamation benchmark). 

Maximum contents observed during year, 155,020 acre-ft June 15 (elevatior , 2,515.92 

ft); minimum observed, 55,550 acre-ft Sept. 30 (elevation, 2,466.60 ft). Maximum contents observed during'period 1906-51, 160,570 acre-ft May 16, 1925 (elevation, 2,518.09 

ft); minimum observed, 448 acre-ft Sept. 6, 12, 13, 1906 (original crib fam); minimum 

elevation observed,- 2,428.30 ft Sept. 20, 1926.

Reservoir is formed on natural lake by earth- and gravel-fill dam completed in 1917; 

storage began above crib dam Jan. 12, 1906, above present dam Aug. 19, IS 14. To aid 

in construction and clearing of reservoir site, the water surface was kept low and 

present reservoir was not filled until June 15, 1920. Capacity. 153,000 acre-ft 

between gate sill (elevation, 2,425.00 ft), and spillway crest (elevatior, 2,515.00 

ft). Records given herein represent usable contents. Water used for irrigation.

Kachess Lake. Lat 47°16', long. 121 012', in SW£ sec. 34, T. 21 N., R. 13 E., at dam on 

Kachess River at outlet of Kachess Lake, 2f miles northwest of Easton. F«cords available, September 1905 to September 1951. Staff gage read twice daily. Datum of gage is 

at mean sea level (Bureau of Reclamation benchmark). Maximum contents observed during 

year, 240,930 acre-ft June 15, 16 (elevation, 2,262.43 ft); minimum observed, 120,120 

acre-ft Aug. 19 (elevation, 2,233.20 ft). Maximum contents observed during period 

1905-51, 241,300 acre-ft July 11, 1943 (elevation, 2,262.51 ft); minimum observed, 525 

acre-ft Sept. 14, 15, 1910 (original crib dam); minimum elevation observed, 2,197.73 

ft Sept. 26, 27, 1915.

Reservoir is formed on natural lake by earth- and gravel-fill dam completed in 

1912. Original crib dam creating capacity of 21,000 acre-ft used Sept. 20, 1905, to 

June 30, 1911. Storage above present dam began June 30, 1911. Capacity, 239,000 acreft between ga.te sill (elevation, 2,192.75 ft) and top of spillway gate (elevation, 

2,262.00 ft). Records given herein represent usable contents. Water used for 

irrigation.

Cle Elum Lake. Lat 47°15', long. 121 "04', in NE^ sec. 10, T. 20 N., R. 14 E., at dam on 

Cle Elum River, at outlet of Cle Elum Lake, 4 miles northwest of Roslyn. Records 

available, May 1906 to September 1951. Staff gage read twice daily. Datum of gage is 

at mean sea level (Bureau of Reclamation benchmark). Maximum contents observed during 

year, 440,470 acre-ft June 16 (elevation, 2,240.73 ft); minimum observed, 158,410 acreft Sept. 30 (elevation, 2,171.73 ft). Maximum contents observed during period 1906-51, 

443,700 acre-ft May 31, 1945, May 28, 1949 (elevation, 2,241.40 ft); minimum observed, 

2,380 acre-ft Aug. 31, 1906; minimum elevation observed, 2,114.35 ft Oct. 14, 1932. 

Storage was uncontrolled Oct. 3, 1931, to Feb. 26, 1932.

Reservoir is formed on natural lake by earth- and gravel-fill dam completed in 1933; 

storage began above present dam Feb. 26, 1932. Capacity, 436,000 acre-ft between gate 

sill (elevation, 2,110.00 ft) and top of spillway gate (elevation, 2,240.00 ft). Records given herein represent usable contents. Water used for irrigation.

Revisions (water years). W 1182: 1948-49.

Bumping Lake. Staff gage, lat 46°52', long. 121 °18' , in SW-J- sec. 23 (unsurveyed), T. 16 

N., R. 12 E., at dam on Bumping River, at outlet of Bumping Lake, llf miles upstream 

from American River, and 19 miles west of Nile. Records available, June to July 1906, 

April 1909 to September 1951. Staff gage read twice daily. Datum of gag? is at mean 

sea level (Bureau of Reclamation benchmark). Maximum contents observed dvring year, 

36,480 acre-ft June 14-17 (elevation, 3,428.09 ft); minimum observed, 2,950 acre-ft 

Sept. 30 (elevation, 3,393.63 ft). Maximum contents observed during period 1906, 

1909-51, 39,840 acre-ft June 21, 22, 1925 (elevation, 3,430.55 ft); minimum observed, 

1,130 acre-ft Feb. 5-9, 1949 (elevation, 3,390.80 ft).

Reservoir is formed on natural lake by earth-fill dam completed in 1910; storage 

began Nov. 3, 1910. Capacity, 33,800 acre-ft between gate sill (elevatio-?, 3,389.00 

ft) and spillway crest (elevation, 3,426.00 ft). Records given herein represent 

usable contents. Water used for irrigation.

Tieton Reservoir.--Lat 46°39', long. 121°07', in SW£ sec. 31 (unsurveyed), T. 14 N., R. 

14 E., on face of dam on Tieton River, at spillway, at Rimrock, 2,000 ft upstream from 

Wild Cat Creek, 7f miles upstream from headworks of Tieton Canal, and 22? miles southwest of Naches. Records available, April 1925 to September 1951. Staff gage read 

twice daily. Datum of gage is at mean sea level (Bureau of Reclamation benchmark). 

Maximum contents observed during year, 200,000 acre-ft June 15, 16 (elevation, 2,926.79 

ft); minimum observed, 80,480 acre-ft Sept. 30 (elevation, 2,867.86 ft). Maximum contents observed during period 1925-51, 201,380 acre-ft June 21, 1937 (elevation, 

2,927.33 ft); minimum observed, 89 acre-ft Oct. 12, 1926 (elevation, 2,766.77 ft).

Reservoir is formed by earth- and gravel-fill dam completed in 1925; storage began 

Apr. 27, 1925. Capacity, 197,000 acre-ft between sill of tunnel entrance (elevation, 

2,766.00 ft) and crest of spillway gates (elevation, 2,926.00 ft). Records given herein represent usable contents. Water used for irrigation.

Cooperation. Records furnished by Bureau of Reclamation, reviewed and prepared for publication by Geological Survey.
YAKIMA RIVER BASIN 337

Monthly elevation and contents of reservoirs In Yaklma River basin, Wash., 

water year October 1950 to September 1951

Date

Dec . 31 .................

Calendar year 1950....

Water year 1950-51....

Date

Nov. 30.................

Calendar year 1950....

Feb. 28.................

Mar. 31.................

May 31.................

Sept . 30 .................

Water year 1950-51....

Date

Nov. 30.................

Dec . 31 .................

Calendar year 1950.... 

Jan. 31.................

Feb. 28.................

Apr. 30.................

May 31 .................

July 31 .................

Water year 1950-51 ....

Keechelus Lake

Elevation 

(feet)t

2,484.38 

2,477.33 

2,481.36 

2,487.41

-

3,475.21 

2,479.27 

2,473.10 

2,489.59 

2,513.23 

2,515.53 

2,508.26 

2,490.85 

2,466.64

-

Contents 

(acrefeet)

85,270 

73,710 

79,750 

91,020

-

69,140 

76,060 

65,670 

95,280 

148,240 

154,030 

136,090 

97,790 

55,610

-

Change In 

contents 

during month 

(acre-feet)

-12,560 

-1-7,040 

+11,270

-1-3,950

-21,880 

-1-6,920 

-10,390 

+29,610 

-1-52,960 

+5,790 

-17,940 

-38,300 

-42,180

-29,660

Cle Elum Lake

2,191.28 

3,187.70 

2,193.09 

2,203.08

-

3,199.85 

2,206.12 

2,198.52 

3,217.36 

2,240.16 

2,240.36 

2,327.55 

2,195.86 

2,171.81

-

228,360 

214,960 

235,230 

274,520

1

261,590 

286,860 

256,320 

333,900 

437,720 

438,680 

378,810 

245,910 

158,680

-

-13,400 

+20,270 

+39,290

+91,440

-12,930 

+25,270 

-30,540 

+77,580 

+103,820 

+960 

-59,870 

-132,900 

-87,330

-69,680

Tleton Reservoir

2,886.35 

2,887.97 

2,887.69 

3,890.35

-

3,880.43 

2,888.69 

2,883.05 

2,901.50 

2,925.35 

2,926.43 

2,913.39 

2,886.00 

3,867.89

-

112,160 

115,180 

114,660 

119,700

1"

101,440 

116,540 

106,120 

142,000 

196,360 

199,080 

167,820 

115,240 

80,530

-

+3,020 

-520 

+5,040

-18,970

-18,260 

+15,100 

-10,420 

+35,880 

+54,360 

+2,720 

-31,260 

-52,580 

-34,710

-31,630

Kachess Lake

Elevation 

(feet)t

2,235.82 

2,239.57 

2,246.60 

2,247.81

-

2,247.02 

2,249.04 

2,247.18 

2,253.50 

2,260.99 

2,260.29 

2,244.19 

2,233.47 

2,234.19

j

Contents (acrefeet)

129,8-JO 

144,080 

172,150 

177,170

-

173,890 

182, 3?0 

174,550 

201,370 

234,410 

231,260 

162,310 

121,110 

123,770

-

Change In 

contents 

during month 

(acre-feet)

+14,260 

+28,070 

+5,020

+19,230

-3,280 

+8,430 

-7,770 

+26,780 

+33,080 

-3,150 

-68,950 

-41,200 

+2,660

-6,050

Bumping Lake

3,396.05 

3,411.92 

3,425.05 

3,407.62

-

3,400.73 

3,407.02 

3,396.93 

3,413.20 

3,427.52 

3,427.40 

3,417.94 

3,405.78 

3,393.67

-

4,5-0 

17,470 

32,430 

13,4<>0

-

7,8"0 

12,8">0 

5,150 

18,770 

35,710 

35,5-0 

23,900 

11,8."50 

2,9^0

-

+12,920 

+15,010 

-19,060

-1,640

-5,570 

+5,040 

-7,740 

+13,620 

+16,940 

-160 

-11,650 

-12,070 

-8,850

-1,570

t Elevation IB mean for day.
338 MISCELLANEOUS DISCHARGE MEASUREMENTS

Measurements of streamflow in Pacific slope basins in Washington and upper Columbia 

River basin made at points other than gaging stations are given in the following table:

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River basin during water year October 1950 to September 1951

Naselle River basin, Wash..

Date

Feb. 9

Stream

Lane Creek*/ ......

Tributary to or 

diverting from 

Naselle River. .....

Locality

SE£ sec. 4, T. 10 N., R. 9 W., at crossing of U. S. Highway 830, l£ miles 

northeast of Naselle.

Discharge 

(cfs)

t!4Z

y Discharge of crest flow on Jan. 20, 1950, has been revised to 172 efs, superseding figure published in Water-Supply Paper 1182.

t Flow at crest stage; discharge computed by contracted-opening method.

Nemah River basin, Wash.

Feb. 9 Unnamed stream.... North Nemah River . . NW£ sec. 24, T

Nemah Road,

Highway 101,

Bend.

12 N.,

£ miles

11 mile

R. 10 W.,

east of U

3 south of

on

S.

South

t56.8

t Flow at crest stage; discharge computed by contracted-opening method.

Willapa River basin. Wash.

county road crossing, 

northeast of Lebam.

R. 7 W., at

2j miles

tZ17

t Flow at crest stage; discharge computed by contracted-opening method.

North River basin, Wash.

Feb. 9 Joe Creek ......... North River. ....... SE£ sec. 30, T. 16 N., R. 8 W., at 

crossing of U. S. Highway 101, 

8 miles southeast of Cosmopolls.

t203

t Flow at crest stage; discharge computed by contracted-opening method.

Chehalis River basin. Wash.

16

Sept. 26

halls River.

....do............ ....do.............

crossing of State Highway 12, 

4 miles southwest of Pe Ell.

former gaging station near Doty.

former gaging station at Boistfort .

N., R. IE., at former gaging station 

near Onalaska.

former gaging station near Rochester.

former gaging station at Little Reck.

former gaging station near Oakvill<?.

former gaging station at Porter .

former gaging station below Black 

Creek, 2j miles northwest of 

Monte sano. 

....do.................................

tllZ

10.9

3.70

23.9

.42

10.0

7.89

50.6

115

t Plow at crest stage; discharge computed by contracted-opening method.

Humptulips River basin, Wash.

9 Unnamed stream.... Big Creek.... ......

Larsori Road 300 ft east of U. S. 

Highway 101 and llj miles north of 

Hoqulam. 

SE£ sec. 11, T. 19 N., R. 10 W., at 

crossing of U. S. Highway 101, llj 

miles north of Hoqulam.

t20.8

t Flow at crest stage; discharge computed by contracted-opening method

Quillayute River basin, Wash.

Feb. 10 Qrader Creek ...... Bogachlel River .... SW£ sec. 17, T. 28 N., R. 13 W., at 

crossing of U. S. Highway 101, 

Z miles southwest of Forks.

t252

t Flow at crest stage; discharge computed by contracted-opening method.
MISCELLANEOUS DISCHARGE MEASUREMENTS 339

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River basin during water year October 1950 to September 1951 Continue?

Basins tributary to Strait of Juan de Fuca, Wash.

Date

Aug. 28 

Feb. 10

Stream

Port Angeles Industrial canal.

East Valley Creek.

Tributary to or 

diverting from 

Right side Elwha 

River.

Valley Creek. ......

Fuca.

Locality

Ei sec. 31, T. 30 N., R. 9 W., at crossing of U. S. Highway 101, 2 miles east 

of Fair holm. 

NKi sec. 10, T. 30 N., R. 7 W., Just 

below railroad crossing, li miles west 

of Port Angeles. 

SWi sec. 15, T. 30 N., R. 6 W., on Hlster 

Road, f mile south of Port Angeles.

Ing of U. S. Highway 101, 2j miles east 

of Port Angeles.

east of U. S. Highway 101 at Blyn.

Discharge 

(cfs)

t59.7

125

tis.o

t Plow at crest stage; discharge computed by contracted-opening method.

Skokomlsh River basin, Wash.

5 

June 14

26

July 10

June 7 

26

July 10

Aug. 3

Sept. 18

Aug. 3 

Sept. 18

Aug. 3 

Sept. 18

Sept. 17

Aug. 3 

Sept. 17

Unnamed stream.... 

Vance Creek .......

....do............

....do............

....do............

....do............ 

....do............

....do............

Purdy Creek. ...... 

....do............

Unnamed stream. . . . 

....do............

....do............

....do............

Unnamed creek ..... 

....do............

Big Creek... .......

South Fork SkokomIsh River.

....do.............

... .do.... .........

Purdy Creek. .......

....do............. 

....do.............

crossing, 5 miles northwest of 

Lilliwaup.

NKi sec. 20, T. 23 N., R. 4 W., at road 

crossing, 4j miles west of Lilliwaup. 

SWi sec. 11, T. 21 N., R. 5 W., at road 

crossing, 7j miles southwest of 

Potlatch.

NWi sec. IjB, T. 21 N., R. 4 W., at road 

crossing, 6j miles southwest of 

Potlatch.

SWi sec. 14, T. 21 N., R. 4 W., at road 

crossing, 4^ miles southwest of Union.

SWi sec. 14, T. 21 N., R. 4 W., 100 ft 

above mouth and 4j miles southwest of 

Union.

southwest of Union.

NWi sec. 13, T. 21 N., R. 4 W., 3i miles 

southwest of Union.

10.3

3 T?

.14 

11.0

.24

29.8

2.32

3.25

al.OO

a Estimated.

Basins tributary to Hood Canal other than Skokomish River basin, Wash.

Aug. 1 

Sept. 6

Aug. 1 

Sept. 6

Aug. 1 

Sept. 6

Aug. 1 

Sept. 6

Aug. 1 

Sept. 6

Aug. 6 

Sept. 6

July 24 

Dec. 24

Aug. 2 

Sept. 6

Tarboo Creek. ..... 

....do............

Donovan Creek. .... 

....do............

Leland Lake outlet 

....do............

Big Quilcene River 

....do............

Townsend Creek .... 

....do............

Tunnel Creek ...... 

....do............

Port Townsend municipal diversion

....do............ 

....do............

Dabob Bay ..........

Quilcene Bay. ......

Little Quilcene 

River.

Quilcene Bay.. .....

Big Quilcene River. 

....do.............

.. ..do. ............

Left side Big 

Quilcene River.

....do............. 

....do.............

SWi sec. 33, T. 28 N., R. 1 W., at road 

crossing, 4 miles northeast of Qu"lcene.

SWi sec. 18, T. 27 N., R. 1 W., Jus 1: below 

Tommy Creek, 1,000 ft above mouth. J 

mile northeast of Quilcene. 

....do....................................

SWi sec. 25, T. 28 N., R. 2 W., at road 

crossing, 4j miles north of Quilcene.

above mouth, 1 mile northwest of 

Quilcene. 

SEi sec. 19, T. 27 N., R. 2 W., 300 ft 

above Townsend Creek and 5 miles west 

of Quilcene.

SEj sec. 19, T. 27 N., R. 2 W., 600 ft 

above mouth and 5 miles west of Quilcene.

Si sec. 31, T. 27 N., R. 2 W,, 40 f ; above 

mouth and 5j miles southwest of 

Quilcene.

Si sec. 31, T. 27 N., R. 2 W,, 5i m« les 

southwest of Quilcene.

above mouth and 2 miles west of Qillcene. 

SEj sec. 22, T. 27 N., R. 2 W., 200 ft 

above hatchery diversion and 2 miles 

southwest of Quilcene. 

. . . .do. ...................................

2.26

.14

No flow

23.6

14 8

7.24

42.8

26.2

4.29 

3.18

* Computed by weir formula, 

a Estimated.
340 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper Columbia 

River basin during water year October 1950 to September 1951 Contin-ied

Basins tributary to Hood Canal other than Skokomish River basin, Wash. Continued

Date

2 

Sept. 6

Aug. 2 

2

Sept. 6

Aug. 2 

2

Feb. 10

June 13 

July 6

17

Aug. 2

Aug. 2 

3

Aug. 2 

June 13 

July 6

17

Sept. 6

20 

Aug. 3 

3 

Sept. 18

June 13 

July 6

17

Aug. 6

Sept. 18

18

18 

Aug. 6

June 13

July 5

16

25

31

Sept. 20

5

5 

July 31

Sept. 5

Stream

Spencer Creek .....

Jackson Creek ..... 

Turner Creek ......

....do............

Unnamed stream. . . .

Unnamed stream ....

Rooky Brook. ....... 

.. ..do... .........

....do............

.. ..do.......... ..

....do............

Unnamed stream. . . . 

Unnamed creek. .... 

....do............

McDonald Creek .... 

Pulton Creek ...... 

. ...do.. ..........

. .. .do.. ..........

....do...... ......

Schaerer Creek. . . . 

Unnamed stream .... 

Waketiokeh Creek..

....do............

....do............

do

Unnamed stream .... 

Hamma Hamma River.

Jorsted Creek... . .

... .do.. ..........

....do............

....do............

Unnamed stream....

Unnamed creek .....

Tributary to or 

diverting from--

Jackson Cove .......

Dabob Bay. .........

....do..........._.

.. ..do.... .........

....do....... ...... 

....do.............

do

....do............. 

Duckabush River ....

Hood Canal ......... 

....do... ..........

....do..... ........ 

....do... .......... 

. ...do.. ...........

... .do.... .........

....do.............

....do.............

Locality

hatchery diversion, 2 miles southwest 

of Quileene . 

SE£ sec. 11, T. 26 N., R. 2 W., at 

crossing of U. S. Highway 101, 

4j miles south of Quiloene.

SW£ sec. 13, T. 26 N., R. 2 W., at 

crossing of U. S. Highway 101, 

4 miles north of Brlnnon.

crossing of U. S. Highway 101, 

2j miles north of Brinnon.

Si sec. 35, T. 26 N., R. 2 W., at 

crossing 6f U. S. Highway 101, 0.2 

mile north of store at Brinnon.

Dosewallips Road, 5 miles north-rest 

of Brinnon. 

NWi sec. 28, T. 26 N., R. 2 W., at 

Dosewallips River road crossing, 

3 miles off U. S. Highway 101 a-id 3£ 

miles northwest of Brinnon. 

NW£ sec. 28, T. 26 N., R. 2 W., a*; road 

crossing, 3 miles northwest of 

Brinnon.

Wj sec. 28, T. 26 N., R. 2 W., at road 

crossing, 3 miles northwest of 

Brinnon . 

SWi sec. 16, T. 25 N., R. 2 W., at road 

crossing, 3 miles southwest of 

Brinnon.

Ei sec. 29, T. 25 H., R. 2 W., at 

crossing of U. S. Highway, 4§ miles 

southwest of Brinnon. 

NE£ sec. 31, T. 25 N., R. 2 W.. at 

crossing of U. S. Highway, 54 mi.les 

southwest of Brinnon.

Wj sec. 6, T. 24 N., R. 2 W., at crossing of U. S. Highway 101, 4j miles 

northeast of Eldon. 

SW£ sec. 13, T. 24 N. , R. 3 W., at 

crossing of U. S. Highway 101, 2.2 

miles northeast of Eldon. 

NWi sec. 15, T. 24 N., R. 3 W., at 

Hamma Hamma River road crossing, 2j 

miles northwest of Eldon.

Ej sec. 23, T. 24 H., R. 3 W., at 

crossing of U. S. Highway 101, l£ 

miles northeast of Eldon.

crossing, 5 miles northwest of Eldon. 

SE£ sec. 8, T. 24 N., R. 3 W., at road 

crossing, 3^ miles northwest of 

Eldon .

above mouth and £ mile northwest of

Eldon .

crossing, ij miles south of Eldin.

crossing of U. S. Highway 101, 3 

miles northeast of Lilliwaup. 

SW£ sec. 9, T. 23 N., R. 3 W., at 

crossing of U. S. Highway 101, 2j 

miles northeast of Lilliwaup.

crossing of U. S. Highway 101, lj 

miles northeast of Lilliwaup.

Discharge 

(cfs)

.50

No flow

No flow

t52 

6.36

2 go

2 go

No flow 

.24

No flow 

3.36

No flow 

.57

1.01

4.13

No flow

43 2

1.66

.12

t Plow 

a Estli

at crest stage; discharge computed by contracted-opening method, 

lated.
MISCELLANEOUS DISCHARGE MEASUREMENTS 341

Miscellaneous discharge measurements In Pacific slope basins In Washington and up^er Columbia 

River basin during water year October 1950 to September 1951 Continued

Basins tributary to Hood Canal other than Skokomlsh River basin. Wash. Continued

Bate

June 12 

28

Sept. 5

July 31 

Sept. 5

30 

30

Aug. 6 

Sept. 5

July 31 

Sept. 20

Feb. 10 

Aug. 3 

Sept . 17

Aug. 3 

Sept. 17

Aug. 3 

Sept. 17

3 

Sept. 17

Aug. 3 

Sept. 17

Aug. 3 

Sept. 17

Aug. 3 

Sept. 17

Aug. 3 

Sept. 17

Aug. 3 

Sept. 17

Aug. 2 

Sept. 17

Aug. 2

Sept. 17

Aug. 2 

Sept. 17

Aug. 2 

Sept. 17

Aug. 2 

Sept. 17

Aug. 2 

Sept. 17

Aug. 2

Stream

Lllllwaup Creek. . . 

....do............

....do............

....do.............

Little Lllllwaup 

Creek .

....do............

Miller Creek. ..... 

Clark Creek. ......

Unnamed stream .... 

....do............

Hill Creek........ 

 ....do............

Unnamed stream.... 

. ...do.. .......... 

....4o..... ......

....do...... ...... 

....do............

... .do. ........... 

. ...do.... ........

. ...do.. .......... 

....do............

....do............ 

....do............

... .do.... ........ 

....do............

....do............

....do............

....do............ 

....do............

.. ..do.. .......... 

....do............

Dalby Creek. ...... 

....do............

Unnamed stream....

. ...do.. ..........

....do...,. ........ 

. ...do.. ..........

... .do.. .......... 

. . ..do.. ..........

....do............ 

....do............

... .do.. .......... 

....do............

.. ..do. ...........

Tributary to or 

diverting from 

Hood Canal ......... 

....do.............

....do.............

....40.............

....do............. 

....do............. 

Pinch Creek. .......

Hood Canal .........

Annas Bay. ......... 

Hood Canal ......... 

....do.............

....do.............

....do............. 

....do.............

....do............. 

....do.............

....do............. 

....do.............

....do............. 

....do.............

....do.............

....do.............

....do.............

....do.. ...........

....do.............

....do............. 

....do.............

....do.............

.. ..do.. ........... 

.. ..do..... ........

.. ..do.. ...........

... .do.. ...........

Locality

Wj sec. 19, T. 23 N., R. 3 W., J mile 

above crossing of U. S. Highway 101, 

at Lllllwaup.

NWi sec. 30, T. 23 N., R. 3 W., at 

crossing of U. S. Highway 101, half a 

mile south of Lllllwaup.

....ao............... ...................

crossing of U. S. Highway 101, ij 

miles south of Lllllwaup. 

NEfc sec. 1, T. 22 N., R. 4 W., at 

crossing of U. S. Highway 101, 

2 miles north of Hoodsport. 

SWi sec. 1, T. 22 N., R. 4 W., at 

crossing of U. S. Highway 101, 1 mile 

north of Hoodsport. 

SEj sec. 11, T. 22 N., R. 4 W., 20 ft 

above mouth at Hoodsport . 

....do.................................

SEi sec. 14, T. 22 N., R. 4 W., at 

crossing of U. S. Highway 101, J mile 

south of Hoodsport. 

... .do .................................

3Wfc sec. 35, T. 22 N., R. 4 W., at 

crossing of U. S. Highway 101, 2j 

miles south of Potlatch. 

SWi sec. 6, T. 21 N., R. 3 W., at 

crossing of State Highway 14, 1.9 

miles south of Union.

SWj sec. 6, T. 21 N., R. 3 W., at 

crossing of State Highway 14, 1.8 

miles south of Union.

SWJ sec. 6, T. 21 N., R. 3 W., at 

crossing of State Highway 14, 1.7 

miles south of Union.

SWj sec. 6, T. 21 N., R. 3 W., at 

crossing of State Highway 14, 1.6 

miles south of Union.

SWj sec. 6, T. 21 N., R. 3 W., at 

crossing of State Highway 14, 1.5 

miles south of Union.

Nj sec. 6, T. 21 N., R. 3 W., at crossIng of State Highway 14, 1.3 miles 

south of Union. 

....do.................................

N£ sec. 6, T. 21 N., R. 3 W., at crossing of State Highway 14, 0.8 mile 

south of Union.

SEi sec. 32, T. 22 N., R. 3 W., at 

crossing of State Highway 14, 1 irlle 

east of Union.

SWj sec. 33, T. 22 N., R. 3 W., at 

crossing of State Highway 14, 1 .3 

miles east of Union.

SWi sec. 33, T. 22 N., R'. 3 W., at 

crossing of State Highway 14, lj 

miles east of Union. 

....do.................................

crossing of State Highway 14, 2 iriles 

east of Union.

....ao... ..............................

SWi sec. 34, T. 22 N., R. 3 W., at 

crossing- of State Highway 14, 2.3 

miles east of Union.

NWi sec. 36, T. 22 N., R. 3 W., at 

crossing of State Highway 14, 4.7 

miles east of Union.

NWi .sec. 36, T. 22 N., R. 3 W., at 

crossing of State Highway 14, 4.3 

miles east of Union. 

....do.................................

NWi see. 36, T. 22 N., R. 3 W., at 

crossing of State Highway 14, 4.6 

miles east of Union.

SEi seo. 25, T. 22 N., R. 3 W., at 

crossing of State Highway 14, 4.8 

miles east of Union.

Discharge 

(cfs)

23.6

4.57

No flow 

No flow 

2.04

6.63

tl!3 

a. 15

a. 10

.70

a. 20

a. 10

a. 10

a. 02

a. 05

1.37

1.18

a. 05

a. 20

a. 05 

a. 05

a. 20

a. 10

t Plow at crest stage; discharge computed by contracted-opening method, 

a Estimated.
342 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River basin during water year October 1950 to September 1951 Contlnue-i

Basins tributary to Hood Canal other than Skokomlsh River basin, Wash. Continued

Date

Sept . 17

Aug. 2

Aug. 2

Aug. 2

Aug. 2

Aug. 2

Aug. 2

6 

Aug. 2 

2

13

Stream

Unnamed stream... 

....do...........

....do... ........

.. ..do... ........

....do...........

....do...........

. ...do.... .......

....do...........

. . ..do.... ....... 

....do...........

....do........... 

Anderson Creek. . .

Tributary to or 

diverting from 

Hood Canal .........

....do.............

....do.............

....do.............

....do.............

....do.............

....do.............

....do... .......... 

....do..... ........ 

....do............. 

....do.............

Locality

SEi see. 23, T. 22 N., R. 3 W., at 

crossing of State Highway 14, 4.8 

miles east of Onion.

crossing of State Highway 14, 5 miles 

east of Union.

NWi sec. 30, T. 22 N., R. 2 W., at 

crossing of State Highway 14, 5.5 

miles east of Union.

NWi sec. 30, T. 22 N., R. 2 W., at 

crossing of State Highway 14, 5.8 

miles east of Union.

NEi sec. 30, T. 22 N., R. 2 W., at 

crossing of State Highway 14, 6 miles 

east of Union.

SEi sec. 20, T. 22 N., R. 2 W., at 

crossing of State Highway 14, 6 miles 

west of Allyn.

NWi sec. 22, T. 22 N., R. 2 W., at 

crossing of State Highway 14, 4^ 

miles west of Allyn.

N£ sec. 22, T. 22 N., R. 2 W., at 

crossing of State Highway 14, 4 miles 

west of Allyn.

SWi sec. 12, T. 22 N., R. 2 W., at 

crossing of State Highway 14, 3 miles 

northeast of Allyn. 

SWi sec. 6, T. 22 N., R. 1 W., at 

crossing of State Highway 14, 3 miles 

north of Allyn. 

NWi sec. 6, T. 22 N., R. 1 W., at 

crossing of State Highway 14, 3i 

miles north of Allyn. 

Si sec. 17, T. 24 N., R. 2 W., at former 

gaging station £ mile above moufn and 

1 mile northeast of Holley. 

SW^ sec 25 T 25 N R 2 W at

former gaging station i mile abo-'e 

mouth and 2 miles west of Seabed'.

Discharge 

(cfs)

aO.10 

.95

.89

1.93 

1.87

a. 10 

a. 10

3.08 

2.29

1.19

a. 05

.55 

.48

1.55 

No flow 

No flow 

6.36

a Estimated.

Minor basins tributary to Puget Sound above Nlsqually River, Wash.

Aug. 13 

13

13

13 

1 

Sept. 20

June 7 

27

July 10

30

July 30

Aug. 7

7

Aug. 7

Kit sap Creek. .... 

Clear Creek. .....

Ourley Creek .....

Bur ley Creek. .... 

Shumocher Creek . . 

.. ..do.. .........

Sherwood Creek. . . 

. . ..do....... ....

....do...........

. ...do.. .........

....do...........

....do.. .........

Jones Creek. ..... 

....do...........

.. ..do.... .......

. ...do.. .........

Dicker son Creek. . . . 

Dyes Inlet. ........

Puget Sound ........

Henderson Bay. 

Mason Lake. ........ 

....do........... ..

North Bay ..........

....do.............

Plckerlng Passage.

....do............

Hammersly Inlet . . .

SWi sec. 8, T. 24 N., R. 1 E., at lake 

outlet, 2 miles south of Chlco. 

North line sec. 16, T. 25 N., R. 1 E., 

at former gaging station 1 mile above 

mouth and lj miles north of Silverdale. 

NEiNEi sec. 8, T. 23 N., R. 2 E., 

1 mile below Long Lake and 4 miles 

southeast of Port Orchard. 

NEi sec. 11, T. 22 N., R. 1 E., at 

former gaging station at Bur ley. 

NWi sec. 15, T. 21 N., R. 3 W., at road 

crossing, 3^ miles southeast of Union.

NEJ sec. 34, T. 22 N., R. 2 W., at road 

crossing, 4^ miles southwest of 

Allyn.

SWi sec. 20, T. 22 N., R. 1 W., £ mile 

above mouth and ^ mile southwest of 

Allyn.

SEi se c- 33. T - 21 N - R - 2 w -> at road 

crossing, 8 miles northeast of Shelton.

crossing, 7j miles northeast of Sl°lton. 

W£ sec. 9, T. 20 N., R. 2 W., at road 

crossing, 7^ miles northeast of Sl<>lton.

On line between sees. 17 and 20, T. 20 N., 

R. 2 W., at road crossing, 6^ miles east 

of Shelton.

0.36 

2.71

6.21

15.8 

4.50

11.0

7.65

1.34

.18

No flow
MISCELLANEOUS DISCHARGE MEASUREMENTS 343

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Col 

River basin during water year October 1950 to September 1951 Continued

Minor basins tributary to Puget Sound above Nlsqually River, Wash. Continued

Date

Aug. 7 

Sept. 6

Aug. 8

7 

Sept. 6

Aug. 7

Aug. 7

Aug. 1

Sept. 20

Aug. 2 

Sept. 6

Aug. 2

Nov. 10

Aug. 1 

Aug. 27

Aug. 1

27

6 

Sept. 4

July 31 

Aug. 27

6 

Sept. 4

Aug. 6 

Sept. 4

Aug. 6 

Sept. 4

July 31 

Aug. 27

July 31 

Aug. 27

July 31 

Feb. 1O

July 31

June 5

Aug. 27

Stream

Unnamed stream. 

....do...........

....do...........

Campbell Creek. . . 

....do...........

....do...........

Spring Creek ..... 

....do...........

....do...........

....do...........

Unnamed stream . . . 

....do...........

....do...........

....do...........

Johns Creek ......

....do...........

North Fork Goldsborough Creek. 

....do...........

....do...........

Unnamed stream . . . 

....do...........

Oosnell Creek. .. . 

....do...........

Mill Creek....... 

....do...........

Unnamed stream... 

....do...........

....do...........

....do........... 

....do...........

...,do...........

. . ..do......... ..

Little Creek... .. 

....do...........

Schnelder Creek.. 

Unnamed stream...

....do...........

Perry Creek. .....

....do...........

Tributary to or 

diverting from 

Hammer sly Inlet..

Oakland Bay. ......

Deer Creek. .......

....do............

....do............ 

....do............

....do......... ...

....do............

Ooldsborough Creek

Hammersly Inlet . . . 

....do............

Isabella Lake. ....

Hammersly Inlet... 

....do............

Totten Inlet ...... 

....do............

....do............ 

....do............

Skookum Creek .....

....do............

Totten Inlet. ..... 

Schnelder Creek. . .

....do............

....do...........

Locality

Line between sees. 18 and 19, T. 20 V., R. 

2 W., at road crossing, 5^ miles ee st of 

Shelton.

2 W., 5i miles east of Shelton. NW| sec. 13, T. 20 N., R. 3 W., 100 ft 

above road crossing, 4 miles northeast 

of Shelton.

W., at road crossing, 5 miles nor tf east 

of Shelton.

SE| sec. 36, T. 21 N., R. 3 W., at cvlvert, 6 miles northeast of Shelton. 

....do....................................

crossing, 5 miles northeast of Shelton.

SW| sec. 35, T. 21 N., R. 3 W., at road 

crossing, 5 miles northeast of Shelton.

crossing, 4 miles northeast of Shelton.

NEi sec. 5, T. 20 N., R. 3 W., 2£ miles 

above mouth, 3 miles north of Shelton. at 

former gaging station.

crossing, l£ miles northeast of Shelton.

NW| sec. 17, T. 20 N., R. 4 W., at read 

crossing, 5 miles West of Shelton.

crossing, £ mile southwest of Shelton.

SE| sec. 23, T. 20 N., R. 3 W., at road 

crossing, 4 miles east of Shelton.

SE-J sec. 2, T. 19 N., R. 4 W., 4 miles 

southwest of Shelton.

SEi sec. 25, T. 20 N., R. 3 W., at road 

crossing, 4£ miles east of Shelton.

NWj sec. 32, T. 20 N., R. 2 W., at road 

crossing, 7 miles northeast of Kamllche.

crossing, 4 miles northeast of Kamilche.

NW| sec. 10, T. 19 N., R. 3 W., at road 

crossing, 2^ miles northeast of Kairllehe.

crossing, l£ miles northeast of Kairilche.

NW| sec. 25, T. 19 N., R. 4 W., at crossing of State Highway 9-D, 2 miles southwest of Kamllche.

SE| sec. 18, T. 19 N., R, 3 W., 75 ft below bridge on State Highway 9-D, at 

Kamllche . 

....do....................................

NWi sec. 2, T. 18 N., R. 3 W., at road 

crossing, 6 miles northwest of Olyirpla. 

SEi sec. 32, T. 19 N., R. 3 W., at crossing of U. S. Highway 101, a£ miles 

south of Shelton.

crossing, 5 miles west of Olympla. 

South line see. 11, T. 18 N., R. 3 W., 

along gravel road, 4£ miles west of 

Olympla .

... .do .....................................

Discharge 

(cfs)

Trace

.57

1.45

5 95

Trace

19.1

5.31

a. 02

10.4

13.4

Trace

1.59

a. 03

.28

No flow 

t96.3

.95 

.37

No flow

t Flow at crest stage; discharge computed t>y contracted-opening method, 

a Estimated.

288995 O - 54 - 23
344 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper ( 

River basin during water year October 1950 to September 1951 Continued

Minor basins tributary to Puget Sound above Nlsqually River, Wash. Continued

Date

July 31

July 31

June 5 

25

July 10

31

Aug. 27

14

Stream

Unnamed stream . . .

....do.. ......... 

....do...........

McLean Creek. .... 

....do...........

.. ..do.... .......

....do.. .........

Spurgeon Creek ...

Tributary to or 

diverting from 

McLean Creek ......

....do............

Eld Inlet. ........

....do............

....do............

Deschutes River...

Locality

SE£ sec. 24, T. 18 N., R. 3 ¥., at rood 

crossing, 3^ miles southwest of 

Olympla .

SW£ sec. 19, T. 18 N., R. 2 ¥., at rowi 

crossing, 3 miles west of Olympla.

w£ sec. 19, T. 18 N., R. 2 W., at road 

crossing, 3 miles west of Olympla.

West line sec. 20, T. 17 N., R. 1 W., at 

former gaging station, 4 mile above 

mouth and 7.2 miles southeast of 

Olympla .

Discharge 

(ofs)

1.23

a. 15

6.25

10.1

a Estimated.

Nlsqually River basin, Wash.

Nov. 7

Jan. 17

Mar. 16

Apr. 13

May 17

July 19

Sept. 10

Centralla power 

canal.

.. ..do... ........

....do...........

....do. ..........

... .do. ..........

....do...........

... .do. ..........

Nisqually River. . .

....do............

....do............

NWj sec. 1, T. 16N..R. 2E., £ mile below head and 3i miles southeast of 

McKenna .

... .do. ..................................

374

364

Chambers Creek basin, Wash.

July 10 

23

Aug. 7

24

Sept. 4

4

July 10 

23

Aug. 7

24

Sept. 4

July 10 

23

Aug. 7

24

Sept. 4

Dec. 12 

July 10

23

Aug. 7

24

Sept. 4

July 10 

23

24

Sept. 4

July 10 

23

Aug. 7

24

Sept. 4

Clover Creek. .... 

... .do.... .......

....do...........

....do...........

....do...........

Unnamed stream ... 

Clover Creek. ....

.. ..do...,. ......

.. ..do... ........

....do...........

Morey Creek ...... 

... .do. ..........

....do...........

....do...........

... .do. ..........

Clover Creek. .... 

....do...........

. ...do.. .........

. ...do.... .......

....do...........

....do...........

....do........... 

....do...........

....do...........

. ...do. ..........

....do...........

....do........... 

. ...do. ..........

. ...do.. .........

....do...........

....do...........

Stellacoom Lake . . . 

....do............

....do............

Clover Creek. ..... 

Stellacoom Lake . . .

....do............

Clover Creek. .....

....do............

Stellacoom Lake . . .

....do............

....do.............

....do............

SEfc sec. 16, T. 19 N., R. 3 E., at comty 

bridge at 138th St., 2i miles south 

of Tacoraa.

SE£ sec. 16, T. 19 N., R. 3 E., 60 ft below county bridge at 138th St., and 2^ 

miles south of Tacoraa. 

NEj sec. 18, T. 19 N., R. 3 E., Just 

above Morey Creek on McChord Field.

NEj sec. 18, T. 19 N., R. 3 E., at mo'ith 

in McChord Field.

SEJ sec. 18, T. 19 N., R. 3 E., 600 f; 

east of main hangar at south end of 

runway on McChord Field.

crete bridge at west edge McChord F.'.eld.

SEJ sec. 11, T. 19 N., R. 2 E., at bridge 

on U. S. Highway 99, 6 miles northeast 

of main entrance to Fort Lewis.

NWj sec. 11, T. 19 N., R. 2 E., at bridge 

on Qravelly Lake road, l£ miles southwest of Lakevlew.

... .do. ..................................

3.31

2 57

.91

15.5 

11.5

2.07

125

15.2

13.4

6 19

1.11

Puyallup River basin, Wash.

Aug. 14

14

Qale Creek .......

Volght Creek. ....

South Prairie .....

Carbon River ......

Near center of sec. 28, T. 19 N., R. 6 E.,

at former gaging station In Wilkeson.

SWj sec. 1, T. 18 N., R. 5 E., at forner

gaging station near Crocker.

4.64

7.14
MISCELLANEOUS DISCHARGE MEASUREMENTS 345

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River basin during water year October 1950 to September 1951 Continued

Puyallup River basin, Wash. Continued

Date

Feb. 10

Stream

Cyclone Creek.....

Tributary to or 

diverting from 

White River .......

Locality

gaging station near McMlllan. 

SW{ sec. 34, T. 20 N., R. BE., at crossing of U. S. Highway 410, 10 miles east 

of Enumclaw.

former gaging station at Puyallup

72nd Street crossing In Tacoma.

Discharge 

(cfs)

11.2

tioo

at crest stage; discharge computed by contracted-opening method. 

Hylebos Creek basin, Wash.

Feb.

Oct. 

Aug.

9

3 

14

South Fork Hylebos 

Creek .

Hylebos Creek. ....

Hylebos Creek. ....

Commencement Bay.. 

....do............

SEi sec. 33, T 

Ing of State 

of Puyallup.

NW£ sec. 32, T 

gaging static 

... .do.. ......

21 N., R. 4 ! 

Highway 5D, 5

21 N., R. 4 I 

>n near Tacoma

1., at crossmiles north

., at former

6.56

8.37 

8.77

t Flow at crest stage; discharge computed by contracted-opening method.

Duwamish River basin. Wash.

Mar. 16 

Feb. 10

Aug. 31 

31

31 

31

31

15 

Feb. 9 

9

Deep Creek. .......

Newaukum Creek .... 

Unnamed stream .... 

Newaukum Creek. . . .

River . 

Stonequarry Creek.

Newaukum Creek .... 

DoUoff Lake Outlet 

....do............

Deep Lake .........

Green River ....... 

Newaukum Creek. . . . 

Green River .......

North Fork Green 

River .

Green River. ...... 

....do. ........... 

....do............

SEi sec. 21, T. 21 N., R. 7 E., at railroad crossing at Cumberland.

SW^NEi sec. 16, T. 20 N., R. 7 E., 100 ft 

below springs and 3j miles northeast of 

Enumclaw. 

SW^NEi sec. 16, T. 20 N., R. 7 E., 600 ft 

above mouth and 3j miles northeast of 

Enumclaw. 

SWiSEi sec. 8, T. 20 N., R. 7 E., on Byrd 

Ranch, 3 miles northeast of Enumclaw.

crossing, 2j miles northeast of 

Enumclaw. 

SEt sec. 6, T. 20 N., R. 7 E., at railroad crossing, 3 miles northeast of 

Enumclaw . 

SWi sec. 26, T. 21 N., R., 6 E., at former 

rglng station near Black Diamond, 

sec. 14, T. 14 N., R. 4 E., on State 

Highway 5, 2 miles west of Auburn.

19.7

1.56 

.21 

1.44

1.07

15.4 

99.7

t Flow at crest stage; discharge computed by contracted-opening method.

Lake Washington basin, Wash.

Feb. 2 

10

9 

10

10

Unnamed stream. . . . 

... .do...... ......

....do............

Evans Creek. ......

Mercer Creek. .....

Evans Creek. ......

Bear Creek ........

SEiSEi sec 32 T 24 N R 5 E at

former gaging station near Renton. 

NEi sec. 27, T. 25 N., R. 5 E., on county 

road, Z\ miles northeast of Bellevue. 

....do...................................

NWj sec. 16, T. 25 N., R. 6 E., on Redmond-Fall City highway, 3$ miles southeast of Redmond.

NEi sec. 17, T. 25 N., R. 6 E., on Redmond-Fall City highway, 3 miles southeast of Redmond.

gaging station at Redmond.

3 07

21.5

*59.7

t!82

t Flow at crest stage; discharge computed by contracted-opening method. 

* Computed by weir formula.

Snohomlsh River basin, Wash.

Feb. 10

Aug. 17

Feb. 9

Aug. 16

Feb. 10

Unnamed stream....

North Fork Skykomlsh River.

Olney Creek .......

West Fork Woods

Creek.

Unnamed stream....

South Fork Skykomlsh River.

Skykomlsh River...

Wallace River .....

Woods Creek. ......

South Fork Snoqualmie River.

NEi sec. 2, T. 26 N., R. 10 E., on Great

Northern Ry. crossing a quarter of a

mile east of post office at Baring. 

NWi sec. 20, T. 27 N. , R. 10 E., at

former gaging station at Index.

SWj sec. 6, T. 28 N., R. 9 E., at former

gaging station near Gold Bar.

NW{ sec. 33, T. 28 N., R. 7 E., 300 ft

above mouth and 2j miles northeast of

Monroe.

NWi sec. 13, T. 22 N., R. 10 E., at

crossing of U. S. Highway 10, 15 miles

southeast of North Bend.

t!43

220

*3,540

6.33

t33.0

* Flow at crest stage; discharge computed by slope-area method.

t Flow at crest stage; discharge computed by contracted-opening method.
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins In Washington and upper 

River basin during water year October 1950 to September 1951 Continued

Snohomish River basin, Wash. Continued

Date

Aug. 15

16 

Oct. 16

Dec. 5

Aug. 16

16

17

Stream

Patter son Creek...

Cherry Creek ...... 

Stevens Creek. ....

....do. ...........

....do............

Dubuque Creek .....

Tributary to or 

diverting from 

....do.............

Little Pilchuck 

River .

Pilchuck River .....

Locality

at former gaging station near Fall 

City.

from former gaging station. 

NWj sec. 8, T. 24 N., R. 7 E., at 

former gaging station near Fall 

City. 

NWj sec. 17, T. 26 N., R. 7 E., at 

former gaging station near Duvall . 

East line sec. 8, T. 29 N., R. 6 E., 

at former gaging station at Lake 

Stevens.

NWjNWi sec. 22, T. 29 N., R. 6 E., at 

former gaging station near Lake 

Stevens .

at former gaging station near 

Everett.

Discharge 

(cfsj

9.38

2.91 

.52

.24

t Flow at crest stage; discharge computed by contracted-opening method.

Alien Creek basin, Wash.

Nov. 27 Munson Creek. ..... Alien Creek. ....... NWj 

2

sec.

mile

26, T. 30 N., 

3 northeast of

R. 5 

Mary

E., 

svllle.

t!5.4

t Plow at crest stage; discharge computed by contracted-opening method.

Tulalip Creek basin, Wash.

Aug. 16 Tulalip Creek..... FOB session Sound . . . SWj sec. 22 

ft below

. Troad30 N., R 

crossing

4 E., 200 

at Tulalip.

5.19

Stillaguamish River basin. Wash.

Oct. 3 

Oct. 11

Aug. 13

13

Oct. 3 

3

Oct. 11

Aug. 16

Apr. 16 

Aug. 17 

Oct. 2 

2

Benson Creek. .....

....do............

Canyon Creek ......

Boulder Creek. .... 

.. ..do. ...........

Deer Creek. .......

.. ..do.. ..........

Lake Creek. ....... 

Portage Creek..... 

Church Creek ...... 

....do.. ..........

South Fork Stillaguamish River.

....do.............

North Fork Stillaguamish River.

... .do .............

Pilchuck Creek. .... 

South Slough. ...... 

Stillaguamish River 

.... .do.. ..........

NE£ sec. 16, T. 30 N., R. 8 E., at 

former gaging station near Granite 

Falls.

NEj sec. 5, T. 30 N., R. 7 E., at 

site of former gaging station near 

Granite Falls. 

NWj sec. 9, T. 32 N., R. 8 E., at 

former gaging station near Oso. 

... .do ...............................

site of former gaging station at 

Oso.

SWj sec. 22, T. 33 N., R. 6 E., at 

outlet of Cavanaugh Lake, 6 miles 

northwest of Oso. 

NWj sec. 17, T. 31 N., R. 5 E., at 

site of former gaging station near 

Arlington. 

SEjNWj sec. 29, T. 32 N., R. 4 E., at 

site of former gaging station near 

Stanwood. 

.. ..do. ..............................

2.12 

24 5

42.3

61.4 

60.3

45.7

35.9 

10.8 

.42 

.42

Skagit River basin, Wash.

Oct. 5

Aug. 15

16

15

16

-16

Feb. 10

Aug. 15

Bacon Creek .......

....do............

Clear Creek. ......

Jackman Creek. ....

Flnney Creek ......

Grandy Creek ......

Unnamed stream. . . .

Coal Creek. .......

Skagit River..... ..

....do.............

Sauk River .........

Skagit River .......

... .do .............

. . . .do. ............

....do.. ...........

....do.... .........

Line between sees. 20 and 21, T. 3^ 

N., R. 11 E., at former gaging station near Marblemount. 

.. ..do.. .............................

SWj sec. 31, T. 31 N., R. 10 E., at

mouth, 3 miles southeast of Darrington.

SWj see. 13, T. 35 N., R. 8 E., at

site of former gaging station at

Van Horn.

Sec. 19, T. 35 N., R. 8 E., at approximate site of former gaging

station near Concrete.

SEj sec. 10, T. 35 N., R. 7 E., at

site of former gaging station ne^r

Concrete.

SEj sec. 25, T. 35 N., R. 5 E., at

county road crossing, 3 miles

southwest of Lyman.

Si sec. 10, T. 35 N., R. 5 E., at

site of former gaging station neir

Sedro Woolley.

400

181

19.4

12.3

17.2

6.09

t!48

.26

t Flow at crest stage; discharge computed by contracted-opening method.
MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in Pacific slope basins in Washington and upper 

River basin during water year October 1950 to September 1951 Continued

Skagit River basin, Wash. Continued

Date

Mar. 13

Stream

Unnamed stream. . . .

Tributary 

diverting

Tom Moore

to or 

from 

Slough. .

Locality

SE-J sec. 4, T. 32 N., R. 4 E., 

crossing of U. S. Highway 99 

miles south of Mt. Vernon.

at 

, 94

Discharge 

(cfs)

t27.0

at crest stage; discharge computed by contracted-opening method. 

Samish River basin. Wash.

Feb. 10 Unnamed stream.... Samish Lake ....... NW£ sec. 23, T. 

crossing of U 

miles southea

37 N., R. 3 

S. Highway 

3t of Bellln

E., 

99,

;ham

at 

64

t208

at crest stagej discharge computed by contracted-opening method. 

Whatcom Creek basin, Wash.

Aug. 15 Austin Creek. ..... Lake Whatcom. ..... SW^NWi sec. 8, T

site of former

Bellingham.

37 N.,

gaging

R. 4 E

station

., at

near

0.25

Nooksack River basin, Wash.

Aug. 14

14

Feb. 10

East Branch 

Double Ditch 

Creek.

Ditch Creek. 

Bertrand Creek....

Unnamed stream....

Double Ditch 

Creek .

Nooksack River .... 

Tenmlle Creek. ....

Middle sec. 31, T. 41 N., R. 3 E., at 

international boundary, 4 miles 

north of Lynden.

SE-J sec. 27, T. 40 N., R. 2 E., at 

site of former gaging station near 

Lynden . 

Ni sec. 27, T. 39 N., R. 3 E., at 

Starry Road crossing 2 miles northwest of Noon and 7 miles northeast 

of Bellingham.

site of former gaging station near 

Ferndale .

3.21

9.04 

t56.5

3.93

at crest stage; discharge computed by contracted-opening method. 

Frazler River basin, Wash.

Feb. 14 Sumas River ....... Vedder River. ..... NEj sec. 11, T. 40 N., R. 4 E., 

site of former gaging station 

Sumas.

at 

near

11.4

Kootenay River basin

Oct. 10

Dec. 5

May 10

25

28

July 12

Kootenay River ....

....do............

....do............

....do............

....do............

... .do............

. ...do. ...........

Columbia River ....

. .. .do.. ..........

Qrohman Narrows, 2 miles below Nelson,

British Columbia; measurements referred to gage No. 10 at Nelson

(station 8 N., J. 9 of Water Resources Division, Department of Resources and Development, Canada).

....do................................

20,390

84.020

Blackfoot River basin, Mont.

Nov. 28

Jan. 25

Feb. 19

Mar. 21

June 14

Douglas Creek. ....

....do............

. ...do.. ..........

....do............

.. ..do. ...........

Blackfoot River . . .

. .. .do. ...........

NWj sec. 5, T. 12 N., R. 11 W., at

county road bridge on HelmvllleDrummond road, 4 miles southwest of

Helmvllle.

... .do.... ............................

7.7

32.5

Flathead River basin, Mont.

Apr.

May

May

9

10?*,

Dayton Creek ......

....do............

....do............

Flathead Lake..... SW-fc sec

miles

17, T. 25 N

northwest of

, R. 21 W., 4.7

Dayton .

26.2
348 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper Columbia 

River basin during water year October 1950 to September 1951 Continued

Pend Qrellle River basin

Date

Oct. 13

May 1

22

Stream

Pend Qrellle River

....do............

....do............

Tributary to or 

diverting from 

Columbia River ....

Locality

In lot 4, sec. 26, T. 56 N., R. 5 W., 

at town of Priest River, Idaho, li 

miles downstream from Priest R'ver.

W., at Newport, Wash., 0,2 mile upstream from bridge on U. S. Highway 2.

way crossing, i mile south of lone, 

Wash.

Discharge 

(cfs)

12,200

44,600

1

Colvllle River basin, Wash.

Apr. 8 Sheep Creek. ...... Colvllle River .... Line between sees. 32 

R . 41 E . , at former 

1 mile west of town

and 33, T. 30 N., 

gaging station, 

of Loon Lake .

3.34

Spokane River basin, Wash.

Nov. 11

Mar. 10

July 14

Aug. 27

Little Spokane 

River .

....do............

....do........ ....

....do............

Spokane River .....

....do............

NWj sec. 5, T. 26 N., R. 42 E., Just below highway crossing, 1 mile above 

mouth .

... .do .................................

484

405

Okanogan River basin, Wash.

Sept. 14 

14

14

Toats Coulee Creek 

....do............

Toats Coulee Creek 

diversion.

Slnlahekln Creek . .

Right side of 

Toats Coulee 

Creek.

SWj sec. 28, T. 39 N., R. 25 E., Just 

below bridge 3i miles northwest of 

Loomls .

above dam and 3i miles northwest of 

Loomls. 

SWj sec. 26, T. 39 N., R. 25 E., Just 

below Intake, 3^ miles northwest of 

Loomls .

22.0

18.1

Wenatchee River basin, Wash.

May 16 

15

Icicle Irrigation 

ditch.

Icicle Creek.. ....

Right side of 

Icicle Creek.

Wenatchee River . . .

SWj sec. 27, T. 24 N., R. 17 E., at 

crossing over Snow Creek, 4 miles 

southwest of Leavenworth. 

SEi sec. 23, T. 24 N., R. 17 E., at 

fish hatchery, 2 miles south of 

Leavenworth.

34.9 

1,720

Yakima River basin, Wash.

Oct. 13

Aug. 22

Apr. 16

Oct. 20 

Apr. 16

June 2

Aug. 24

Apr. 17 

June 6

Aug. 23

Oct. 12 

Dec. 4

Feb. 5

Apr. 16

June 2

Aug. 22

Apr. 12 

Aug. 16

Apr. 13

Klttltas Canal. . . .

....do............

....do........ ....

. . . .da. ...........

City of Yaklma 

municipal diversion. 

Selah Valley Canal

....do............

Tleton Canal ...... 

....do............

... .do.. ..........

Wapatox power 

canal. 

... .do... .........

.. ..dp. ...........

....do............

.. ..do. ...........

.. ..do. ...........

Union Qap Canal . . . 

. . . .do. ...........

New Reservation 

Canal.

Right side of 

Yaklma River.

Left side of 

Naches River.

..,. do. ...........

Right aide of Tieton River.

Left side of 

Naches River . 

....do....... .....

....<?o............

Left side of Yaklma River.

Right side of Yaklma River.

Sec. 11, T. 20 N., R. 13 E., at headworks near Easton.

miles southweast of Yaklma.

NWj sec. 34, T. 15 N., R. 16 E., below 

pipe outlet at headworks, 6 miles 

west of Naches. 

NWj sec. 26, T. 15 N., R. 16 E., above 

all diversions near Naches.

Sec. 30, T. 14 N., R. 15 E., at former 

gaging station near Naches.

NWfc sec. 36, T. 15 N., R. 16 E., at 

headworks near Naches.

....do............................ ...

NE£ sec. 17, T. 12 N. , R. 19 E., at 

entrance to Union Qap, 1 mile south 

of town of Union Qap.

NWj sec. 20, T. 12 N., R. 19 E., at 

gaging station near Parker.

248

945

550

8.99

47.3 

95 5

55.0

520

29.2

896
MISCELLANEOUS DISCHARGE MEASUREMENTS 349

Miscellaneous discharge measurements In Pacific slope basins In Washington and upper 

River basin during water year October 1950 to September 1951 Continued

Yakima River basin. Wash. Continued

Date

June 1

Dec. 5

Oct. 20

Aug. 22

Stream

New Reservation 

Canal.

Old Reservation 

Canal.

Sunnyslde Canal . . .

....do............

Tributary to or 

diverting from 

Right side of YakIma River.

....do............

Left side of Yakima River.

....do.... ........

Locality

NW-t sec. 20, T. 12 N., R. 19 E., at 

gaging station near Parker. 

....do................................

SW$ sec. 28, T. 12 N., R. 19 E., at 

gaging station near Parker.

SW-t sec. 27, T. 12 N., R. 19 E., at 

gaging station near Parker.

....do................................

Discharge 

(cfs)

1,970

7.27

46.0

80.7

46.6

1,310
INDEX

Aberdeen, Wash., Wynoochee River at.... 27

Accuracy of field data and computed

results.......................... 7-8

Acre-if oot, definition of............... 3

Agencies other than Geological Survey,

records collected by............. 11-12

Ahtanum Creek at Union Gap, Wash....... 329

North Pork, near Tamplco, Wash....... 327

South Pork, at Conrad Ranch, near

Tampico, Wash.................... 328

Alder Creek near Hamilton, Wash........ 161

Alder Reservoir at Alder, Wash......... 83

Alderton, Wash., Puyallup River at..... 95

Alstown, Wash., Douglas Creek near..... 300

American River near Nile, Wash......... 323

Anderson Creek, Wash., discharge measurement of...................... 342

Arlington, Wash., Armstrong Creek near 144 

Pish Creek near...................... 147

Jim Creek near....................... 140

North Pork Stlllaguamlsh River near.. 143

South Pork Stlllaguamlsh River near.. 139

Armstrong Creek near Arlington, Wash... 144

Auburn, Wash., Big Soos Creek near..... 110

Green River near..................... Ill

Austin Creek, Wash., discharge measurement of....................... 347

Bacon Creek, Wash., discharge measurements of...................... 346

Baker River at Concrete, Wash.......... 159

Bear Creek (tributary to Bltterroot

River) near Victor, Mont......... 218

Bear Creek (tributary to Green River)

near Eagle.Gorge, Wash........... 108

Bear Creek (tributary to Middle Pork

Plathead River) near Essex, Mont. 227

Bear Creek, Wash, (tributary to Sammamlsh River), discharge measurement of....................... 345

Belfalr, Wash., Mission Creek near..... 58

Tahuya River near.................... 63

Union River near..................... 55

Belllngham, Wash., Whatcom Creek near.. 166

Benson Creek, Wash., discharge measurements of...................... 346

Bertrand Creek, Wash., discharge measurement of....................... 347

Big Creek, Wash., discharge measurements of........................338,339

Blgfork, Mont., Swan River near........ 238

Big Qullcene River at Qullcene, Wash.... 37 

discharge measurements of............ 339

Big Soos Creek near Auburn, Wash....... 110

Blrchbank, British Columbia, Columbia

River at........................198-199

Bltterroot River, East Pork, at Conner,

Mont............................. 211

near Darby, Mont..................... 212

West Pork, near Conner, Mont......... 210

Bltterroot River (West Pork) Reservoir,

Mont., contents of............... 249

Black River, Wash., discharge measurement of.......................... 338

Blackfoot River near Bonner, Mont...... 208

near Helmvllle, Mont................. 205

near Ovando, Mont.................... 207

Blalne, Wash., Dakota Creek near....... 174

Blodgett Creek near Corvallls, Mont.... 216

Blue Lake near Coulee City, Wash....... 309

Bonner, Mont., Blackfoot River near.... 208

Page 

Bonners Ferry, Idaho, Kootenal

River at......................185-186

Kootenal River near...184,18f-186,187,189 

Bothell, Wash., North Creek neer..... 124

Sammamlsh River at................. 125

Boulder Creek (Kootenal River lasln)

near Leonla, Idaho............. 181

Boulder Creek (North Pork Stlllaguamlsh River), Wash., dlschrrge 

measurements of................ 346

Boulder Creek (Fend Orellle River

basin) at Maxvllle, Mont....... 203

Boundary Creek near Porthlll, Idaho.. 194 

Bremerton, Wash., Gold Creek near.... 59

Mission Creek near................. 57

Mission Lake near.................. 56

Panther Creek near................. 62

Panther Lake near.................. 61

Tahuya River near.................. 60

Union River near................... 54

Brlnnon, Wash., Dosewalllps River

near........................... 38

Duckabush River near............... 39

Bryant, Wash., Pllchuck Creek near... 146 

Buckley, Wash., Mud Mountain Reservoir near...................... 98

White River near................... 99

Bumping Lake, Wash., contents of... .33J3.337

Bumping River near Nile, Wash........ 322

Burley Creek, Wash., discharge measurement of..................... 342

Burlington, Wash., Samlsh Rive- near. 165 

Burnt Pork Creek near Stevensvllle,

Mont........................... 220

Calder, Idaho, St. Joe River at...... 261

Callspell Creek near Dalkena, Wash... 247 

Caraas Reservoirs, Mont., contents of. 249 

Campbell Creek, Wash., discharge

measurements of................ 343

Canyon Creek at Kulshan, Wash........ 168

discharge measurement of........... 346

Carbon River near Fairfax, Was1!...... 93

Cascade River at Marblemount, Wash... 156 

Cataldo, Idaho, Coeur d'Alene River

near........................... 260

Cavanaugh Lake near Oso, Wash........ 145

Cedar Creek, Wash., discharge measurement of..................... 338

Cedar Palls, Wash., Cedar Rive" at... 117 

Cedar River near.,................114,115

Rex River near. .................... 116

Cedar River at Cedar Falls, Wash..... 117

at Renton, Wash.................... 120

below Bear Creek, near Cedar Falls,

Wash........................... 114

near Cedar Falls, Wash............. 115

near Landsberg, Wash..,............ 118

North Pork, near Lester, Was1?...... 112

South Fork, near Lester, Was*...... 113

Cedarvllle, Wash., Rock Creek at..... 23

Centralla, Wash., Skookumchuck River

near........................... 21

Centralla power canal, Wash.,

discharge measurements of...... 344

Cfs-day, definition of............... 3

Chambers Creek below Leach Cre^k,

near Stellacoom, Wash.......... 90

Chamber Creek basin, Wash., 

discharge measurements 

In............................. 344

351
352 INDEX

Page 

Chambers Creek basin, Wash., gaglngstation records in.............. 89-90

Charley Creek near Eagle Gorge, Wash.. 107 

Chehalis, Wash., Newaukum River near.. 20 

Chehalis River at South Elraa, Wash.... 25

near Doty, Wash..................... 19

near Grand Mound, Wash.............. 22

South Fork, Wash., discharge measurementsof...................... 338

Chehalis River basin, Wash., discharge measurements in.......... 338

gaging-station records in........... 19-27

Chelan, Wash;, Chelan River at........ 893

Lake Chelan at...................... 292

Chelan River at Chelan, Wash.......... 293

Chelan River basin, Wash., gagingstation records in.............290-293

Cherry Creek, Wash., discharge measurement of...................... 346

Church Creek, Wash., discharge

measurements of................. 346

City of Yakima municipal diversion, 

Wash., discharge measurement 

of.............................. 348

Clark Creek, Wash., discharge measurement of........................341,345

Clark Pork above Missoula, Mont.

at St. Regis, Mont..................

below Missoula, Mont................

near Heron, Mont....................

near Plains, Mont...................

Cle Elum, Wash., Teanaway River near.,

Yakima River at...

209 

283 

228 

242 

841 

320 

319 

Cle Elum Lake, Wash., contents of... .336,337

Cle Elum River near Roslyn, Wash...... 318

Clear Creek, Wash., discharge measurements of.......................342,346

Cloquallum River at Elma, Wash........ 84

Clover Creek, Wash., discharge measurements of..................... 344

near Tillicum, Wash................. 89

Coal Creek, Wash., discharge measurement of......................... 346

Coeur d'Alene Lake at Coeur d'Alene,

Idaho............................ 263

Coeur d'Alene River above Shoshone

Creek, near Prichard, Idaho..... 257

at Enaville, Idaho.................. 259

near Cataldo, Idaho................. 860

near Prichard, Idaho...............; 258

Coffee Creek, Wash., discharge measurements of..................... 343

Columbia Falls, Mont., Flathead River

at.............................. 237

Flathead River near................. 225

South Fork, Flathead River near..... 236

Columbia River at Birchbank, British

Columbia.......................198-199

at Grand Coulee Dam, Wash........... 283

at international boundary........... 250

at Trinidad, Wash...................5, 303

Columbia River main stem, British

Columbia-Wash., gaging-station 

records on.....................282-283

Colville, Wash., Mill Creek near...... 255

Colville River at Kettle Falls, Wash.. 256 

Colville River basin, Wash., gagingstation records in.............254-256

Como Lake, Mont., contents of......... 249

Computations, accuracy of results of.. 7-8 

Concrete, Wash., Baker River at....... 159

Skagit River near................... 160

Conner, Mont.", East Fork Bitterroot

River at........................ 211

West Fork Bitterroot River near..... 210

Contents, definition of............... 3

Control, definition of................ 3

Coolin, Idaho, Priest Lake near....... 844

Priest River near................... 245

Cooperation, record of................ 1-2

Copeland, Idaho, Kootenai River near 190-191 

Corvallis, Mont., Blodgett Creek near 216 

Coulee City, Wash., Blue Lake near.... 309

Park Creek near..................... SOS

Park Lake near...................... 307

Crab Creek at Irby, Wash.............. 304

near Moses Lake, Wash............... 306

near Smyrna, Wash................... 315

near Warden, Wash................... 314

Crab Creek basin, Wash., gagingstation records in.............304-315

Cranberry Creek, Wash., discharge

measurements of................. 343

near Shelton, Wash.................. 70

Cross Creek, Wash., discharge measurement of......................... 339

Cubic feet per second per square mile,

definition of................... 2

Cubic foot per second, definition of.. 2

Curlew Creek near Malo, Wash.......... 252

Cyclone Creek, Wash., discharge measurement of...................... 345

Dakota Creek near Blaine, W^sh........ 174

Dalby Creek, Wash., discharge measurements of........................ 341

Dalkena, Wash., Calispell Creek near.. 847

Darby, Mont., Bitterroot River near... 212

Rock Creek near..................... 213

Rock Creek Canal near............... 214

Darrington, Wash., North Fork Stillaguamish River near............. 142

Sauk River near..................... 157

Squire Creek near................... 141

Dartford, Wash., Little Spokane River

at.............................. 278

Little Spokane River near........... 279

Data, accuracy of..................... 7-8

explanation of...................... 3-7

Day Creek near Lyman, Wash............ 162

Dayton Creek, Mont., discharge measurements, of..................... 347

Dean Creek, Wash., discharge measurement of......................... 339

Deep Creek (tributary to Deep Lake),

Wash., discharge measurements of 345 

Deep Creek (tributary to Kootenai

River) at Moravia, Khho........ 188

Deer Creek near Shelton, Wash......... 69

Deer Meadow Creek near Hood°port, Wash. 45 

Deming, Wash., Nooksack River at...... 171

Deschutes River near Olympia,

Wash............................ 78

near Ranier, Wash................... 77

Deschutes River basin, Wash., gagingstation records in............... 77-78

Dewatto Creek near Dewatto, Wash...... 64

Diablo Reservoir, Wash., contents of.. 164 

Dogfish Creek near Poulsbo, Wash...... 65

Dolloff Lake outlet, Wash., discharge

measurements of................. 345

Donovan Creek, Wash., discharge measurements of..................... 339

Dosewallips River near Brinnon, Wash.. 38 

Doty, Wash., Chehalis River near...... 19

Double Ditch Creek, East Branch, Wash.,

discharge measurement of........ 347

West Branch, Wash., discharge measurement of...................... 347

Douglas Creek (Blackfoot River basin)

Mont., discharge measurements of 347 

Douglas Creek (Douglas Cree'< basin) at

Palisades , Wash................. 302

Douglas Creek (Moses Coulee basin)

near Alstown, Wash.............. 300

near Palisades, Wash................ 301

Dow Creek near Hoodsport, Wash........ 46

Dubuque Creek, Wash., discharge measurement of...................... 346

Duckabush River near Brinnoi, Wash.... 39

Dungeness River near Sequim, Wash- . 35 

Duwamish River basin, Wash.; discharge

measurements in................. 345

gaging-station records in..........103-111

Eagle Creek near Lilliwaup, Wash...... 41

Eagle Gorge, Wash., Bear Cr3ek near... 108

Charley Creek near.................. 107

East Valley Creek, Wash., discharge

measurement of.................. 339

Easton, Wash., Kachess River near..... 317

Eastport, Idaho, Moyie Rive" at....... 182

Eatonville, Wash., Ohop Cresk near.... 86

Eileen, Idaho, Moyie River at......... 183

Eldon, Wash., Hamma Hamma R'ver near.. 40 

Elk, Wash., Little Spokane River at... 277 

Elk Creek, Wash., discharge measurement of......................... 338

Elma, Wash., Cloquallum Riv?r at...... 24
INDEX

Elwha River at McDonald Bridge, near

Port Angeles, Wash...............

Enaville, Idaho, Coeur d'Alene River

at...............................

Ephrata, Wash., Rocky Ford Creek near

Essex, Mont., Bear Creek near..........

Middle Fork Flathead River at........

Skyland Creek near...................

Evans Creek, Wash., discharge measurements of......................

Fairfax, Wash., Carbon River near......

Fairholm, Wash., Soleduck River near... 

Fennel Creek, Wash., discharge measurement of.......................

Ferry, Wash., Kettle River near........

Finch Creek at Hoodsport, Wash.........

Finn, Mont., Nevada Creek near.........

Finney Creek, Wash., discharge measurement of.......................

Fish Creek, near Arlington","

Wash.............................

Fisher River near Jennings, Mont.......

Fishtrap Creek at Lynden, Wash.........

Flathead Lake at Somers, Mont..........

Flathead River at Columbia Falls, Mont, 

at Flathead, British Columbia..*.....

Middle Fork, at Essex, Mont..........

near West Glacier, Mont............

near Columbia Falls, Mont............

near Poison, Mont....................

South Fork, at Spotted Bear ranger

station, near Hungry Horse, Mont, 

near Columbia Falls , Mont..........

Flint Creek at Maxville, Mont..........

near Southern Cross, Mont............

Floods, special reports on.............

Fortine Creek near Trego, Mont.........

Franklin D. Roosevelt Lake at Grand

Coulee Dam, Wash.................

Fred Burr Creek near Victor, Mont......

Friday Creek near Lester, Wash.........

Fulton Creek, Wash., discharge measurements of.........................

Gale Creek, Wash., discharge measurement 'of..........................

Georgetown Lake, Mont., contents of....

Glacier, Wash., Nooksack River near....

Gold Bar, Wash., Skykomish River near.. 

Wallace River at.....................

Gold Creek near Bremerton, Wash........

Goldsborough Creek at Shelton, Wash....

near Shelton, Wash...................

North Fork, discharge measurements of 

Goldsborough Creek basin, gaging-station records in..................

Gosnell Creek, Wash., discharge measurements of......................

Grader Creek, Wash., discharge measurement of..........................

Grand Coulee Dam, Wash., Columbia River 

at...............................

Franklin D. Roosevelt Lake at........

Grand Mound, Wash., Chehalis River near 

Grandy.Creek, Wash., discharge measurement of..........................

Granite Falls, Wash., Pilchuck River

near.............................

South Fork Stillaguamish River near.. 

Graves Creek near Hungry Horse, Mont... 

Green Creek, North Fork, Wash., discharge measurement of............

Green River near Auburn, Wash..........

near Lester, Wash....................

near Palmer, Wash....................

Greenacres, Wash., Spokane River at....

Greenwater, Wash., Greenwater River at. 

White River at.......................

Greenwater River at Greenwater, Wash... 

Griffin Creek near Tolt, Wash..........

Gurley Creek, Wash., discharge measurement of..........................

Hamilton, Mont., Skalkaho Creek near... 

Hamilton, Wash., Alder Creek near......

Hamma Hamma River, Wash., discharge

measurements of..................

near Eldon, Wash.....................

Hayden Creek below North Fork, near

Hayden Lake, Idaho...............

Page 

34

259

312

227

228

226

345

93

32

345

251

42

206

346

147

177

173

239

237

224

228

229

225

240

230

236

202

200

11

176

282

217

104

340

344

249

167

127

128

59

73

72

343

72-73

338

283

282

22

346

134

138

235

345

111

105

109

271

97

96

97

131

342

215

161

340

40

264

Hayden Lake, Idaho, Hayden Cree't near 

Hayden Lake at.....................

Hayden Lake 'Irrigation District

diversion near.................

Hayden Lake at Hayde_n Lake, Idaho....

Hayden Lake Irrigation District diversion near Hayden Lake, Idaho 

Helmville, Mont., Blackfoot Riv<;r

near...........................

Heron, Mont., Clark Fork near........

Hill Creek, Wash., discharge measurements of....................

Hoh River near Spruce, Wash..........

Hoodsport r Wash. , Deer Meadow Creek near 

Dow Creek near.....................

Finch Creek at.....................

McTaggart Creek near...............

North Fork Skokomish River near....

Hope, British Columbia, Skagit River 

near...........................

Hope, Idaho, Pend Oreille Lake at....

Huetter, Idaho, Rathdrum Prairie

Canal at.......................

Huge Creek near Wauna, Wash..........

Humptulips River near Humptulips,

Wash...........................

Hungry Horse, Mont., Graves Cre^k

near...........................

Lower Twin Creek near..............

South Fork Flathead River near.....

Spotted Bear River near............

Sullivan Creek near................

Twin Creek near....................

Hydrologic conditions................

Hylebos Creek, South Fork, Wash.,

discharge measurements of......

Icicle Creek above Snow Creek, near 

Leavenworth, Wash..............

discharge measurement of...........

Icicle irrigation ditch, Wash., discharge measurement of..........

Index, Wash., South Fork Skykomish

River near.....................

Irby, Wash., Crab Creek at...........

Issaquah Creek near Issaquah, Wish...

Jackman Creek, Wash., discharge

measurement of.................

Jackson Creek, Wash., discharge

measurement of.................

Jennings, Mont., Fisher River near... 

Jim Creek, near Arlington,

Wash...........................

Johns Creek, Wash., discharge ireasurement of.....................

near Shelton, Wash.................

Jones Creek, Wash., discharge ireasurement s of....................

Jorsted Creek, Wash., discharge

measurements of................

Page

264

265

266

265

205

242

341

31

45

46

42

47

43,44

148

243

267

66

28-29

235

233

230

231

234

232

12

345

298

348

348

126

304

121

346

340

177

140

343

71

342

340

Kachess Lake, Wash., contents cf....336,337

Kachess River near Easton, Wash...... 317

Kamilche, Wash., Skookum Creek at.... 75

Kapowsin Creek near Kapowsin, Wash... 91 

Keechelus Lake, Wash., contents of..336,337 

Kennedy Creek near New Kamilche,

Wash........................... 76

Kettle Falls, Wash., Colville River

at.. ........................... 256

Kettle River near Ferry, Wash........ 251

near Laurier, Wash................. 253

Kettle River basin, Wash., gagi-gstation records in............ 251-253

Kiona, Wash., Yakima River at.......334-335

Kitsap Creek, Wash., discharge measurement of..................... 342

Kittitas Canal, Wash., discharge

measurements of................ 348

Kootenai Creek near Stevensville,

Mont........................... 219

Kootenai River at Bonners Ferry,

Idaho.........................185-186

at Boom Camp, near Bonners Ferry,

Idaho.......................... 184

at Klockmann Ranch, near Bonners

Ferry, Idaho................... 189

at Leonia, Idaho................... 180

at Libby, Mont..................... 178

at Porthill, Idaho................195-196
INDEX

Page 

Kootenai River near Bonners Ferry,

Idaho.......................... 187

near Copeland, Idaho..............190-191

Kootenai River basin, British Columbia- Idaho-Mont ., discharge 

measurements in................ 347

gaging-station records in.........175-197

Kootenay Lake at Kuskonook, British

Columbia....................... 197

Kootenay River at Newgate, British

Columbia....................... 175

discharge measurements of.......... 347

Kulshan, Wash., Canyon Creek at...... 168

Kuskonook, British Columbia, Kootenay

Lake at........................ 197

La Grande, Wash., Mashel River near.. 85 

Nisqually River at.........'........ 84

Lake Chelan at Chelan, Wash.......... 292

Lake Creek at Troy, Mont............. 179

discharge measurements of.......... 346

Lake Mills at Glines Canyon near Port

Angeles, Wash.................. 33

Lake Shannon, Wash., contents of..... 164

Lake Stevens, Wash., Little Pilchuck

Creek near..................... 135

Lake Tapps near Sumner, Wash......... 100

Lake Washington basin, Wash., discharge measurements in......... 345

gaging-station records in.........112-125

Landsberg, Wash., Cedar River near... 118 

Lane Creek, Wash., discharge measurement of........................ 338

Latah Creek at Spokane, Wash......... 275

Laurier, Wash., Kettle River near.... 253

Leavenworth, Wash., Icicle Creek near 298 

Lebam, Wash., Willapa River at....... 16

Lees Creek, Wash., discharge measurement of........................ 339

Leland Lake outlet, Wash., discharge

measurements of................ 339

Lenore Lake near Soap Lake, Wash..... 310

Leonia, Idaho, Boulder Creek near.... 181

Kootenai River at.................. 180

Lester, Wash., Friday Creek near..... 104

Green River near................... 105

North Fork Cedar River near........ 112

Smay Creek near.................... 106

Snow Creek near.................... 103

South Fork Cedar River near........ 113

Libby, Mont., Kootenai River at...... 178

Liberty Lake at Liberty Lake, Wash... 270 

Lilliwaup, Wash., Eagle Creek near... 41 

Lilliwaup Creek, Wash., discharge

measurements of................ 341

Lincoln Creek, Wash., discharge measurement of..................... 338

Little Creek, Wash., discharge measurement s of.................... 343

Little Lilliwaup Creek, Wash., discharge measurements of......... 341

Little Pilchuck Creek near Lake

Stevens, Wash.................. 135

Little Quileene River near Quilcene,

Wash........................... 36

Little Spokane River at Dartford, Wash. 278 

at Elk, Wash....................... 277

discharge measurements of.......... 348

near Dartford, Wash................ 279

Lolo Creek near Lolo, Mont........... 221

Long Canyon Creek near Porthill,

Idaho.......................... 192

Long Lake, Wash., Spokane River at... 281 

Long Lake at Long Lake, Wash......... 280

Loon Lake near Loon Lake, Wash....... 254

Lotus, Idaho, St. Maries River at.... 262

Lower Jocko Lake, Mont., contents of. 249 

Lower Twin Creek near Hungry Horse,

Mont............................ 233

Lucerne, Wash., Railroad Creek at.... 291

Lyman, Wash., Day Creek near......... 162

Lynden, Wash., Fishtrap Creek at..... 173

Nooksack River near................ 172

McAllister Springs near Olympia, Wash. 80 

McDonald Creek, Wash., discharge

measurement of................. 340

McKenna, Wash., Nisqually River at... 88 

Nisqually River near............... 87

McLean Creek, Wash., discharge measurements of..................... 344

McTaggart Creek near Hoodsport, Wash.... 47

Malo, Wash., Curlew Creek near.......... 252

Map of the United States................ 9

Maple Valley, Wash., Rock Creek near.... 119

Marblemount, Wash., Cascade F iver at.... 156

Skagit River at....................... 155

Skagit River near..................... 154

Martin, Wash., Yakima River rear........ 316

Marys-ville, Wash., Quilceda'Creek near.. 137 

Mashel River near La Grande, Wash....... 85

Mason Lake near Union, Wash............. 67

Maxville, Mont., Boulder Creek at....... 203

Flint Creek at........................ 202

May Creek, Wash., discharge measurement

of................................ 345

Metaline Falls, Wash., Pend Oreille

River near........................ 248

Methow River at Twisp, Wash............. 289

Mill Creek at Shelton, Wash.-............ 74

discharge measurements of............. 343

near Colville, Wash................... 255

Miller Creek, Wash., discharge measurement of........................... 341

Mineral Creek near Mineral, Vsh........ 82

Mission Creek near Belfair, ¥->sh........ 58

near Bremerton, Wash.................. 57

Mission Creek basin, Wash., gagingstation records in................ 56-58

Mission Lake near Bremerton, Wash....... 56

Mission Valley Reservoirs, Mcnt., contents of.......................... 249

Missoula, Mont., Clark Fork above....... 209

Clark Fork below...................... 222

Monroe, Wash., Woods Creek near......... 130

Moravia, Idaho, Deep Creek at........... 188

Morey Creek, Wash., discharge measurements of.......................... 344

Moses Lake, Wash., Crab Creek near...... 306

Moses Lake at......................... 313

Moses Lake at Moses Lake, Wash.......... 313

Mount Vernon, Wash., Skagit River near.. 163 

Moyie River at Eastport, Idaho.......... 182

at Eileen, Idaho...................... 183

Mud Mountain Reservoir near Euckley,

Wash.............................. 98

Munson Creek, Wash., discharge measurement of........................... 346

Naches, Wash., Naches River near........ 326

Tieton River near....................324,325

Naches River below Tieton River, near

Naches, Wash...................... 326

Naselle River near Naselle, Wash........ 14

National, Wash., Nisqually River near... 81 

Nevada Creek above reservoir, near Finn,

Mont.............................. 206

Nevada Creek Reservoir, Mont., contents

of................................ 249

New Kamilche-, Wash., Kennedy Creek near. 76 

New Reservation Canal, Wash., discharge

measurements of..................348-349

Newaukum Creek, Wash., discharge measurements of....................... 345

Newaukum River, Wash., discharge measurement of........................ 338

near Chehalis, Wash................... 20

Newgate, British Columbia, Koitenay

River at.......................... 175

Newhalem, Wash., Ross Reservoir near.... 150

Ruby Creek near....................... 149

Skagit River at....................... 153

Stetattle Creek near.................. 152

Thunder Creek near.................... 151

Nighthawk, Wash., Similkameen River near 287 

Nile , Wash. , American River n3ar........ 323

Bumping River near.................... 322

Nisqually River at La Grande, Wash.

at McKenna, Wash......................

near McKenna, Wash....................

near National, Wash...................

Nisqually River basin, Wash., discharge 

measurements in.

84

87

81

gaging-station records in............. 81-88

Nooksack River above Cascade Creek,

near Glacier, Wash................ 167

at Deming, Wash....................... 171

near Lynden, Wash..................... 172

South Fork, near Wickersham, Wash..... 169

Nooksack River basin, Wash., discharge

measurements in................... 347

gaging-station records in............167-173
INDEX 355

Page 

North Creek near Bothell, Wash......... 124

North Nemah River near South Bend, Wash. 15 

North River near Raymond, Wash......... 18

Ohop Creek near Eatonville, Wash....... 86

Okanagan River at Okanagan Falls,

British Columbia................. 284

Okanogan River at Oroville, Wash....... 286

at Tonasket, Wash...................... 288

Okanogan River basin, Wash., gagingstation records in..............284-288

Old Reservation Canal, Wash., discharge

measurements of.................. 349

Olney Creek, Wash., discharge measurement of.........................'. 345

Olympia, Wash., Deschutes River near... 78 

McAllister Springs near.............. 80

Woodland Creek near.................. 79

Order, new downstream, of list-ing

gaging stations.................. 3

Oroville, Wash., Okanogan River at..... 286

Osoyoos Lake near.................... 285

Orting, Wash., Puyallup River near..... 92

Oso, Wash., Cavanaugh Lake near........ 145

Osoyoos Lake near Oroville, Wash. 

Ovando, Mont., Blackfoot River near....

285

207

Palisades, Wash., Douglas Creek at..... 302

Douglas Creek near................... 301

Palmer, Wash., Green River near........ 109

Panther Creek near Bremerton, Wash..... 62

Panther Lake near Bremerton, Wash...... 61

Park Creek below Park Lake, near Coulee

City, Wash....................... 308

Park Lake near Coulee City, Wash....... 307

Parker, Wash., Yakima River near......330-333

Patterson Creek, Wash., discharge measurement of....................... 346

Fend Oreille Lake at Hope, Idaho....... 243

Fend Oreille River below Z Canyon, near

Metaline Palls, Wash............. 248

discharge measurements of '............ 348

Fend Oreille River basin, Idaho-Mont.,

discharge measurements in........ 348

gaging-station records in...........200-249

smaller reservoirs in................ 249

Penny Creek, Wash., discharge measurements of........................339-340

Perry Creek, Wash., discharge measurements of......................... 343

Peshastin, Wash., Wenatchee River at... 299 

Philipsburg, Mont., Middle Pork Rock

Creek near....................... 204

Pilchuck Creek, near Bryant,

Wash............................. 146

Pilchuck River near Granite Palls, Wash. 134 

Plain, Wash., Wenatchee Lake near...... 295

Wenatchee River at................... 297

Plains, Mont., Clark Pork near......... 241

Poison, Mont., Plathead River near..... 240

Port Angeles, Wash., Elwha River near.. 34 

Lake Mills at........................ 33

Port Angeles industrial canal, Wash.,

discharge measurement of......... 339

Port Townsend municipal diversion,

Wash., discharge measurement of.. 339 

Portage Creek, Wash., discharge measurement of....................... 346

Porter Creek, -Wash., discharge measurement of.......................... 338

Porthill, Idaho, Boundary Creek near... 194 

Kootenai River at...................195-196

Long Canyon Creek near............... 192

Smith Creek near..................... 193

Post Palls, Idaho, Spokane River near.. 269 

Spokane Valley Farms Co.'s canal at.. 268 

Potlatch, Wash., North Fork Skokomish

River near....................... 48

Skokomish River near................. 53

South Fork, Skokomish River near..... 49-50

Poulsbo, Wash., Dogfish Creek near..... 65

Prichard, Idaho, Coeur d'Alene River

near............................ 257,258

Priest Lake at outlet, near Cool-in,

Idaho............................ 244

Priest River near Coolin, Idaho....... 245

near Priest River, Idaho............. 246

Publications on stream flow, by Geological Survey....................... 8-11

by State agencies.................... 11

Purdy Creek, Wash., discharge measurements of......................... 339

Puyallup, Wash., Puyallup River at.... 

Puyallup River at Alderton, Wrsh.

Page 

102 

95 

at Puyallup, Wash. .................. 102

near Orting, Wash................... 92

Puyallup River basin, Wash., discharge measurements in.........344-345

gaging-station records in...........91-102

Quilceda Creek near Marysville, Wash.. 137

Quilcene, Wash., Big Quilcene River at 37

Little Quilcene River near.......... 36

Quinault River at Quinault Lake, Wash. 30

Raging River, Wash., discharge measurements of.....................

Railroad Creek at Lucerne, Wash.......

Ranier, Wash., Deschutes River near...

Rathdrum Prairie Canal at Huetter,

Idaho...........................

Raymond, Wash., North River near......

Sammamlsh Lake near.................

Sammamish River near................

Renton, Wash., Cedar River at.........

Rex River near Cedar Palls, Wash......

Rock Creek (tributary to Bitterroot

 River) near Darby, Mont.........

Rock Creek (tributary to Cedar River) 

near Maple Valley, Wash.........

Rock Creek (tributary to Chehalis

River) at Cedarville, Wash......

Rock Creek (tributary to Flint Creek)« 

Middle- Pork, near Philirsburg, 

Mont............................

Rock Creek Canal near Darby, Mont.....

Rock Creek (East Pork) Reserv->ir,

Mont. , contents of..............

Rocky Brook, Wash., discharge measurements of........................

Rocky Ford Creek near Ephrata, Wash...

Roslyn, Wash., Cle Elum River near....

Ross Reservoir near Newhalem, Wash....

Roza Canal, Wash., discharge measurements of........................

Ruby Creek below Panther Creek, near 

Newhalem, Wash..................

Runoff in inches, definition of.......

St. Joe River at Calder, Idaho........

St. Maries River at Lotus, Idaho......

St. Regis, Mont., Clark Fork at.......

Samish River near Burlington, Wash....

Sammamish Lake near Redmond, Wash.....

Sammamish River at Bothell, Wrsh......

near Redmond, Wash..................

Satsop River near Satsop, Wash........

Sauk River above Whitechuck River,

near Darrington, Wash...........

near Sauk, Wash.....................

Schaerer Creek, Wash., discharge measurement of......................

Schneider Creek, Wash., discharge

measurement of.... t .............

Selah Valley Canal, Wash., discharge 

measurements of.................

Sequim, Wash., Dungeness River near... 

Sheep Creek, Wash., discharge measurement of.........................

Shelton, Wash., Cranberry Creek near.. 

Deer Creek near.....................

Goldsborough Creek at...............

Goldsborough Creek near.............

Johns Creek near....................

Mill Creek at.......................

Sherwood Creek, Wash., discharge measurements of.....................

Sherwood Creek basin, gaging-station 

records in......................

Shield Creek, Wash., discharge measurement of.............'.........

Shumacher Creek, Wash., discharge

measurements of.................

near Union, Wash............ J........

Similkameen River near Nighthrwk, Wash. 

Skagit River above Alma Creek, near

Marblemount, Wash...............

at Marblemount, Wash................

at Newhalem, Wash...................

near Concrete, Wash.................

near Hope, British Columbia.........

near Mount Vernon, Wash.............

Skagit River basin, British ColumbiaWash. , discharge measurements in

346

291

77

267

18

122

123

120

116

213

119

23

204

214

249

340

312

318

150

348

149

2

261

262

223

165

122

125

123

26

157

158

340

343

348

35

348

70

69

73

72

71

74

342

67-68

338

342

68

287

154

155

153

160

148

163

346
356 INDEX

Skagit River basin, British ColumbiaWash. , gaging-station records 

in............................148-164

reservoirs in...................... 164

Skalkaho Creek near Hamilton, Mont... 215 

Skokomish River near Potlatch, Wash.. 53 

North Fork, below Staircase Rapids,

near Hoodsport, Wash........... 43

near Hoodsport, Wash............. 44

South Fork, near Potlatch, Wash.... 49-50

near Union, Wash................. 51-52

Skokomish River basin, Wash., gagingstation records in............. 43-53

Skookum Creek at Kamilche, Wash...... 75

near Wickersham, Wash.............. 170

Skookumchuck River near Centralia,

Wash........................... 21

Skykomish River near Gold Bar, Wash.. 127 

North Fork, Wash., discharge measurement of..................... 345

South Fork, near Index, Wash....... 126

Skyland Creek near Essex, Mont....... 226

Smay Creek near Lester, Wash......... 106

Smith Creek near Porthill, Idaho..... 193

Smyrna, Wash., Crab Creek near....... 315

Snohomish River at Snohomish, Wash... 136 

Snohomish River basin, Wash., discharge measurements in........345-346

gaging-station records in.........126-137

Snoqualmie River near Tolt, Wash..... 133

Snow ftreek near Lester, Wash......... 103

Soap Lake, Wash., Lenore Lake near... 310 

Soap Lake near..................... 311

Soap Lake near Soap Lake, Wash....... 311

Soleduck River near Pairholm, Wash... 32 

Somers, Mont., Flathead Lake at...... 239

South Bend, Wash., North Nemah River

near ..................^........ 15

South Elma, Wash., Chehalis River at. 25 

South Prairie Creek at South Prairie,

Wash........................... 94

Southern Cross, Mont., Flint Creek

near........................... 200

Trout Creek near................... 201

Spencer Creek, Wash., discharge measurements of...................340,343

Spokane, Wash., Latah Creek at....... 275

Spokane River at..................273,274

Spokane River near................272,276

Spokane River above Seven-Mile Bridge,

near Spokane, Wash............. 276

at Qreenacres, Wash................ 271

at Long Lake, Wash................. 281

at Spokane, Wash................... 274

below Green Street, at Spokane,

Wash........................... 273

below Trent Bridge, near Spokane,

Wash........................... 272

near Post Palls, Idaho............. 269

Spokane River basin, Idaho-Wash.,

discharge measurements in...... 348

gaging-station records in.........257-281

Spokane Valley Farms Co.'s canal at

Post Falls, Idaho.............. 268

Spotted Bear River near Hungry Horse,

Mont........................... 231

Spring Creek, Wash., discharge measurements of.................... 343

Spruce, Wash., Hoh River near........ 31

Spurgeon Creek, Wash., discharge measurement of......'............... 344

Squire Creek near Darrington, Wash... 141 

Stage-discharge relation, definition

of............................. 3

Startup, Wash., Sultan River near.... 129

Stavis Creek, Wash., discharge measurement of..................... 342

Stehekin River at Stehekin, Wash..... 290

Steilacoom, Wash., Chambers Creek

near........................... 90

Stetattle Creek near Newhalem, Wash.. 152 

Stevens Creek, Wash., discharge measurement of..................... 346

Stevensville, Mont., Burnt Fork Creek

near........................... 220

Kootenai Creek near................ 219

Stillaguamish River, North Fork, near

Arlington, Wash................. 143

jiear Darrington, Wash............ 142

South Fork, above Jim Creek, near

Arlington, Wash,............... 139

Page 

Stillaguamish River, South Fork, near

Granite Falls, Wash. 138 

Stillaguamish River basin, Wash., discharge measurements in........... 346

gaging-station records in...........138-147

Stonequarry Creek, Wash., discharge

measurement of................... 345

Stuck River near Summer, Wash.......... 101

Sullivan Creek near Hungry Horse, Mont. 234 

Sultan River near Startup, Wash........ 129

Sumas River, Wash., discharge measurement of.......................... 347

Sumner, Wash., Lake Tapps near......... 100

Stuck River near..................... 101

Sund Creek, Wash., discharge measurement of.......................... 341

Sunnyside Canal, Wash., discharge measurements of...................... 349

Swan Creek, Wash., discharge measurement of.......................... 345

Swan River near Bigfork, Mont.......... 238

Tahuya River near Belfair, Wash........ 63

near Bremerton, Wash................. 60

Tahuya River basin, Wash., gag*ngstation records in............... 59-63

Tampico, Wash., North Fork Ahtanum

Creek near....................... 327

South Fork Ahtanum Creek near........ S28

Tarboo Creek, Wash., discharge measurements of......................... 339

Teanaway River near Cle Elum, Wash..... 320

Tenmile Creek, Wash., discharge measurement of....................... 347

Terms, definition of, and abbreviations 2-3 

Thompson Falls Reservoir, Mont., contents of......................... 249

Thunder Creek near Newhalem, Wash...... 151

Tieton Canal, Wash., discharge measurements of......................... 348

Tieton Reservoir, Wash., contents of..336,337 

Tieton River at headworks of T'^ton

Canal, near Naches, Wash......... 325

at Tieton Dam, near Naches, Wash..... 324

Tillicum, Wash., Clover Creek near..... 89

Toats Coulee Creek, Wash., discharge

measurements of..'................ 348

Toats Coulee Creek diversion, Wash.,

discharge measurement of......... 348

Tplt, Wash., Griffin Creek near........ 131

Snoqualmie River near................ 133

Tolt River near...................... 132

Tolt River near Tolt, Wash............. 132

Tonasket, Wash., Okanogan River near... 288 

Townsend Creek, Wash., discharge measurements of...................... 339

Trego, Mont., Fortine Creek near....... 176

Trinidad, Wash., Columbia River at.....5, 303

Trout Creek near Southern Cross, Mont.. 201 

Troy, Mont., Lake Creek at............. 179

Tulalip Creek, Wash., discharge measurement of....................... 346

Tunnel Creek, Wash., discharge measurements of......................... 339

Turner Creek, Wash., discharge measurements of......................... 340

Twin Creek near Hungry Horse, Mont..... 232

Twisp, Wash., Methow River at.......... 289

Umtanum, Wash., Yakima River at........ 321

Union, Wash., Mason Lake near.......... 67

Shumocher Creek near................. 68

South Fork Skokomish River n?ar...... 51-52

Union Gap, Wash., Ahtanum Cree'<; at..... 329

Union Gap Canal, Wash., discharge measurements of...................... 348

Union River near Belfair, Wash......... 55

near Bremerton, Wash................. 54

Union River basin, Wash., gagingstation records in............... 54-55

Vance Creek, Wash., discharge measurements of......................... 339

Victor, Mont., Bear Creek near......... 218

Fred Burr Creek near................. 217

Voight Creek, Wash., discharge measurement of.......................... 344

Waketickeh Creek, Wash., discharge

measurements of................. 340

Wallace River at Gold Bar, Wash....... 128
INDEX 357

Wapatox power canal, Wash., discharge

measurements of................. 348

Warden, Wash., Crab Creek near........ 314

Watson Creek, Wash., discharge measurement of...................... 340

Wauna, Wash., Huge Creek near......... 66

Wenatchee Lake near Plain, Wash....... 295

Wenatchee River at Peshastin, Wash.... 299

at Plain, Wash...................... 29V

below Wenatchee Lake, Wash.......... 296

Wenatchee River basin, Wash., discharge measurements in.......... 348

gaging-station records in..........295-299

West Glacier, Mont., Middle Pork

Plathead River near............. 229

Whatcom Creek below hatchery, near

Bellingham, Wash................ 166

White River at Greenwater, Wash....... 96

near Buckley, Wash.................. 99

Wickersham, Wash., Skookum Creek near. 170 

South Pork Nooksack River near...... 169

Willapa River at Lebam, Wash.......... 16

near Willapa, Wash.................. 17

Willapa River basin, Wash., gagingstation records in.............. 16-17

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Wilson Creek at Wilson Creek, Wash.... 305

discharge measurement of............ 340

Wood Creek, Wash., discharge measurement of.......................... 346

Woodland Creek near Olympia, Wash..... 79

Woods Creek near Monroe, Wash......... 130

West Fork, Wash., discharge measurement of....................... 345

Work, division of..................... 2

scope of............................ 1

Wynoochee River at Oxbow, near

Aberdeen, Wash................... 27

discharge measurements of........... 338

Yakima River at Cle Elurn, Wast ........ 319

at Kiona, Wash.....................334-335

at Umtanum, Wash.................... 321

near Martin, Wash................... 316

near Parker, Wash..................330-333

Yakima River basin, Wash., discharge

measurements in.................348-349

gaging-station records in..........316-337

reservoirs in......................336-337

U. S. GOVERNMENT PRINTING OFFICE : O 1954