Surface Water Supply 

of the United States 

1951

Part 1 A. North Atlantic Slope Basins, Maine 

to Connecticut

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1201

Prepared in cooperation with the States 

of Connecticut, Maine, Massachusetts, 

New Hampshire, Rhode Island, and 

Vermont, 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 Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont, and with other agencies, by personnel of the Water Resources Division under the direction of:

C. G. Paulsen__________________-Chief Hydraulic Engineer

J. V. B. Wells_________________Chief, Surface Water Branch 

B. J. Peterson_______________Chief, Annual Reports Section

District Engineers (Surface Water)

B. L. Bigwood__________________________Hartford, Conn. 

H. B. Kinnison-_________________________ Boston, Mass. 

M. R. Stackpole________________________Augusta, Maine

in
CONTENTS

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

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

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

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

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

Explanation of data.................................................................. 3

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

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

Records of discharge collected by agencies other than the Geological Survey.......... 12

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

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

St. John River basin:

ST7 John River at Ninemile Bridge, Maine........................................... 14

St. John River at Dickey, Maine .................................................... 15

Allagash River near Allagash, Maine.............................................. 16

St. John River below Fish River, at Fort Kent, Maine ............................... 17

Fish River at Fort Kent, Maine................................................... 18

Aroostook River:

Aroostook River at Washburn, Maine ............................................... 19

Meduxnekeag River near Houlton, Maine ............................................ 20

St. Croix River basin:

St. Croix River at Vanceboro, Maine................................................ 21

Grand Lake Stream at Grand Lake Stream, Maine.................................... 22

St. Croix River near Baileyville, Maine ............................................ 23

Machias River basin:

Machias River at Whitneyville, Maine............................................... 24

East Machias River near East Machias, Maine...................................... 25

Narraguagus River basin:

Narraguagus River at Cherryfield , Maine ............................................ 26

Union River basin:

West Branch Union River at Amherst, Maine.......................................... 27

Penobseot River basin: 

Fenobscot River:

East Branch Penobseot River at Grindstone, Maine.

Mattawamkeag River near Mattawamkeag, Maine...................................... 30

Piscataquis River near Dover-Foxcroft, Maine ..................................... 31

Sebec River at Sebec , Maine.................................................... 40

Pleasant River near Milo, Maine ................................................ 41

Piscataquis River at Medford, Maine .............................................. 42

Penobseot River at West Enfield, Maine ............................................. 43

Passadumkeag River at Luwell, Maine .............................................. 44

Penobseot River at Passadumkeag, Maine............................................. 45

Kenduskeag Stream near Kenduskeag, Maine ......................................... 46

Reservoirs in Penobseot River basin, Maine ......................................... 47

Sheepseot River basin:

Sheepscot River at North Whitefield, Maine ......................................... 48

Kennebec River baa in:

Moosehead Lake (head of Kennebec River) at East Outlet, Maine...................... 49

Kennebec River at Moosehead, Maine ................................................. 50

Kennebec River at The Forks, Maine ................................................. 51

Dead River near Dead River, Maine ................................................ 52

Dead River at The Forks , Maine................................................... 53

Austin Stream at Bingham, Maine.................................................. 54

Carrabassett River near North Anson, Maine ....................................... 56

Sandy River near Mereer, Maine ................................................... 57

Sebasticook River near Pittsfield, Maine......................................... 58

Cobbosseecontee Stream at Gardiner , Maine........................................ 59

Smaller Reservoirs in Kennebec River basin, Maine.................................. 60

Androscoggin River basin:

Androscoggin River:

Diamond River near Wentworth Location, N. H...................................... 62

Androseoggin River at Err-ol, N. H.................................................. 63

Androscoggin River near Gorham, N. H............................................... 64

Androscoggin River at Rumford, Maine ............................................... 65

Swift River near Roxbury, Maine.................................................. 66

Nezinscot River at Turner Center, Maine.......................................... 67

Little Androscoggin River near South Paris , Maine................................ 68

Little Androscoggin River near Auburn, Maine ..................................... 69

Androscoggin River near Auburn, Maine.............................................. 70

Reservoirs in Androscoggin River basin, Maine ...................................... 71

Royal River basin:

Royal River at Yarmouth, Maine..................................................... 73

Presumpscot River basin:

Presumpscot River at outlet of Sebago Lake, Maine. ................................. 74

Saco River basin:

Saco River near Conway, N. H....................................................... 75

Ossipee River at Effingham Falls , N. H........................................... 76

V
VI CONTENTS

Gaging-station records Continued.

£aco River basin Continued. Page

Ossipee River at Cornish, Maine................................................. 77

Saco River at Cornish, Maine...................................................... 78

Little Ossipee River near South Limington, Maine................................ 79

Mousam River basin:

Mousam River near West Kennebunk, Maine........................................... 80

Piscataqua River basin:

Salmon Falls River (head of Piscataqua River) near South Lebanon, Maine........... 81

Oyster River near Durham, N. H.................................................. 82

Lamphrey River near Newmarket, N. H............................................. 83

Merrimack River basin:

Femigewasset River (head of Merrimack River):

East Branch Pemigewasset River near Lincoln, N. H............................... 84

Pemigewasset River at Woodstock, N. H............................................. 85

Baker River at Wentworth, N. H.................................................. 86

Baker River near Rumney, N. H................................................... 87

Pemigewasset River at Plymouth, N. H.............................................. 88

Squam River at Ashland, N. H.................................................... 89

Smith River near Bristol , N. H.................................................. 90

Lake Winnipesaukee at The Weirs , N. H........................................... 91

Lake Winnipesaukee Outlet at Lakeport, N. H..................................... 92

Winnipesaukee River at Tilton, N. H............................................. 93

Merrimack River at Franklin Junction, N. H........................................ 94

Contoocook River at Peterboro, N. H. ............................................ 95

Nubanusit Brook near Peterboro, N. H.......................................... 96

North Branch Contoocook River near Antrim, N. H............................... 97

Beards Brook near Hillsboro, N. H........................................... 98

Contoocook River near Henniker, N. H............................................ 99

Warner River at Davisville , N. H.............................................. 100

Blackwater River near Webster, N. H........................................... 101

Contoocook River at Penacook, N. H.............................................. 102

Suncook River at North Chichester, N. H......................................... 103

Piscataquog River:

South Branch Piscataquog River near Goffstown, N. H........................... 104

Piscataquog River near Goffstown, N. H.......................................... 105

Merrimack River near Goffs Falls, below Manchester, N. H.......................... 106

Cohas Brook:

Clark Brook at Auburn, N. H................................................... 107

Souhegan River at Merrimack, N. H............................................... 108

North Nashua River (head of Nashua River) near Leominster, Mass................. 109

South Branch Nashua River: 

'Stillwater River:

Rocky Brook near Sterling, Mass ........................................... 110

South Branch Nashua River at Clinton, Mass .................................... Ill

Squannacook River near West Groton, Mass...................................... 112

Nashua River at East Pepperell, Mass............................................ 113

Assabet River (head of Concord River) at Maynard, Mass.......................... 114

Sudbury River at Framingham Center, Mass...................................... 115

Lake Cochituate Outlet at Cochituate, Mass.................................. 116

Concord River below River Meadow Brook, at Lowell, Mass......................... 117

Merrimack River below Concord River, at Lowell, Mass.............................. 118

Reservoirs in Merrimack River basin............................................... 119

Parker River basin:

Parker River at Byfield, Mass..................................................... 120

Ipswich River basin:

Ipswich River at South Middleton, Mass............................................ 121

Ipswich River near Ipswich, Mass.................................................. 122

Mystic River basin:

AcerJona River (head of Mystic River) at Winchester, Mass ......................... 123

Charles River basin:

Charles River at Charles River Village, Mass...................................... 124

Mother Brook at Dedham, Mass .................................................... 125

Charles River at Waltham, Mass .................................................... 126

Neponset River basin:

Ueponset River at Norwood, Mass................................................... 127

Westport River basin: 

Westport River:

West Branch Westport River:

Adamsville Brook at Adamsville , R. I.......................................... 128

Taunton River basin:

Taunton River at State Farm, Mass................................................. 129

Three Mile River:

Wading River near Norton, Mass................................................ 130

Providence River basin:

Kettle Brook (head of Providence River) at Worcester, Mass........................ 131

Quinsigamond River at North Grafton, Mass....................................... 132

Blackstone River (continuation of Kettle Brook) at Northbridge, Mass.............. 133

Mumford River at East Douglas, Mass............................................. 134

Branch River at Forestdale , R. I................................................ 135

Blackstone River at Woonsocket, R. I. ............................................. 136

Providence River:

Woonasquatucket River at Centerdale, R. I....................................... 137

Pawtuxet River basin: 

Pawtuxet River:

South Branch Pawtuxet River at Washington, R. I................................. 138

Pawtuxet River at Cranston, R. I. ................................................. 139

Potowomut River basin:

Fotowomut River near East Greenwich, R. I......................................... 140

Pawcatuck River basin:

Pawcatuck River at Wood River Junction, R. I. ..................................... 141
CONTENTS VII

Gaging-station records Continued.

Pawcatuck River basin Continued. Page

Wood River at Hope Valley, R. I................................................. 142

Pawcatuck River at Westerly, R. I................................................. 143

Poquonock River basin:

Great Brook (head of Poquonock River) at Poquonock Bridge, Conn................... 144

Thames River basin:

Willimantic River (head of Thames River) near South Coventry, Conn................ 145

Hop River near Columbia, Conn................................................... 149

Still River (head of Natchaug River): 

Bungee Brook:

Safford Brook near Woodstock Valley, Conn................................... 150

Mount Hope River near Warrenville, Conn....................................... 151

Natchaug River at Willimantic, Conn............................................. 152

Shetucket River (continuation of Willimantic River) near Willimantic, Conn........ 153

Quinebaug River at Westville, Mass .............................................. 157

French River:

Little River at Buffumville , Mass ........................................... 158

French River at Webster, Mass ................................................. 159

Quinebaug River at Quinebaug, Conn.............................................. 160

Quinebaug River at Putnam, Conn................................................. 165

Five Mile River at Killingly, Conn............................................ 166

Moosup River at Moosup, Conn.................................................. 167

Quinebaug River at Jewett City, Conn............................................ 168

Yantic River at Yantic, Conn. ................................................... 169

Connecticut River basin:

Connecticut River at First Connecticut Lake, near Pittsburg, N. H................. 170

Connecticut River at North Stratford, N. H........................................ 171

Upper Ammonoosuc River near Groveton , N. H...................................... 172

Connecticut River near" Dalton, N. H. .............................................. 173

Passumpsic River near East Haven, Vt............................................ 174

Mcose River at Victory, Vt.................................................... 175

Moose River at St. Johnsbury, Vt.............................................. 176

Passumpsic River at Passumpsic, Vt.............................................. 177

Ammonoosuc River at Bethlehem Junction, N. H.................................... 178

Ammonoosuc River near Bath, N. H................................................ 179

Connecticut River at Wells River, Vt.............................................. 180

Wells River at Wells River, Vt.................................................. 181

Waits River:

South Branch Waits River near Bradford, Vt.................................... 183

Ompompanoosuc River at Union Village, Vt........................................ 184

White River near Bethel, Vt..................................................... 185

Third Branch White River:

Ayers Brook at Randolph, Vt................................................. 186

White River at West Hartford, Vt................................................ 187

Connecticut River at White River Junction, Vt..................................... 188

Mascoma River at West Canaan, N. H.............................................. 189

Mascoma River at Mascoma, N. H.................................................. 190

Ottauquechee River at North Hartland, Vt........................................ 191

Sugar River at West Claremont, N. H............................................. 192

Black River at North Springfield, Vt............................................ 193

Williams River at Brockway Mills, Vt............................................ 194

Saxtons River at Saxtons River, Vt..........................'.................... 195

Connecticut River at North Walpole, N. H.......................................... 196

Cold River at Drewsville, N. H.................................................. 197

West River at Jamaica, Vt....................................................... 198

West River at Newfane, Vt....................................................... 199

Connecticut River at Vernon, Vt................................................... 200

Ashuelot River near Gilsum , N. H................................................ 201

Ashuelot River below Surry Mountain Dam, near Keene, N. H....................... 202

The Branch:

Otter Brook near Keene , N. H................................................ 203

South Branch Ashuelot River at Webb, near Marlboro, N. H...................... 204

Ashuelot River at Hinsdale , N. H................................................ 205

Millers River:

Tarbell Brook near Winchendon, Mass ........................................... 206

Millers River near Winchendon, Mass............................................. 207

Priest Brook near Winchendon, Mass............................................ 208

Millers River at South Royalston, Mass .......................................... 209

East Branch Tully River near Athol, Mass ...................................... 210

Moss Brook at Wendell Depot, Mass............................................. 211

Millers River at Erving, Mass ................................................... 212

Connecticut River at Turners Falls , Mass .......................................... 213

Deerfield River at Charlemont, Mass............................................. 214

North River at Shattuckville, Mass............................................ 215

Deerfield River near West Deerfield , Mass ....................................... 216

Connecticut River at Montague City , Mass.......................................... 217

Mill River at Northampton, Mass ................................................. 218

Ware River (head of Chicopee River) near Barre, Mass............................ 219

Ware River at Coldbrook, Mass................................................... 220

Ware River at Gibbs Crossing, Mass......................... .................... 221

Swift River:

Hop Brook near New Salem, Mass.............................................. 222

East Branch Swift River near Hardwlck, Mass................................. 223

Swift River at West Ware, Mass................................................ 224

Quaboag River at West Brimfield, Mass......................................... 225

Chicopee River at Indian Orchard, Mass .......................................... 226

Mill River at Springfield, Mass ................................................. 227

Westfield River at West Chesterfield.Mass ...................................... 228

Westfield River at Knightville, Mass ............................................ 229

Sykes Brook at Knightville , Mass .............................................. 230
VIII CONTENTS

Gaging-station records--Continued. 

Connecticut River basin Continued.

Westfleld River- -Continued. Page 

Middle Branch Westf ield River at Goss Heights , Mass ............................ 231

West Branch Westf ield River at Huntington, Mass. ............................... 232

Westf ield Little River at outlet of Cobble Mountain Reservoir, near Westf ield,

Mass ......................................................................... 233

Westf ield River near Westf ield , Mass ............................................. 234

Connecticut River at Thompsonville , Conn ........................................... 235

Scantic River at Broad Brook , Conn ............................................... 236

West Branch Farmington River, near New Boston, Mass .............................. 238

Still River at Robertsville , Conn. ............................................. 239

West Branch Farmington River, at Riverton, Conn. ................................. 240

Burlington Brook near Burlington, Conn. ........................................ 241

Pequabuck River at Forestville , Conn ........................................... 242

Farmington River at Rainbow , Conn ................................................ 244

South Branch Park River at Hartford, Conn. ....................................... 245

North Branch Park River at Hartford, Conn. ..................................... 247

Park River at Hartford, Conn. .................................................... 249

Hockanum River near East Hartford, Conn. ......................................... 250

Salmon River near East Hampton, Conn. ............................................ 252

East Branch Eightmile River near North Lyme , Conn ................................ 253

West Branch Eightmile River at North Plain, Conn. .............................. 254

Reservoirs in Connecticut River basin .............................................. 255

Menunketesuck River basin:

Menunketesuck River near Clinton , Conn ............................................. 257

Quinnipiac River bas in :

Uuinnipiac River at Wallingford , Conn .............................................. 258

Housatonic River basin:

East Branch Hbus atonic River at Coltsville , Mass ................................... 262

Housatonic River near Great Barrington , Mass ....................................... 263

Blackberry River at Canaan, Conn. ................................................ 264

Housatonic River at Falls Village , Conn ............................................ 266

Tenmile River near Gaylordsville , Conn. .......................................... 267

Housatonic River at Gaylordsville , Conn ............................................ 269

Still River near Lanesville, Conn. ............................................... 270

Shepaug River at Woodville, Conn. ................................................ 271

Shepaug River near Roxbury, Conn. ................................................ 272

Pomeraug River at Southbury , Conn. ............................................... 273

Housatonic River at Stevenson, Conn. ............................................... 275

Naugatuck River near Thomaston , Conn ............................................. 276

Leadmine Brook near Thomaston, Conn. ........................................... 277

Naugatuck River near Naugatuck, Conn. ............................................ 278

Reservoirs in Housatonic River basin. .............................................. 279

Saugatuck River basin:

Saugatuck River near Westport , Conn ................................................ 280

Miscellaneous discharge measurements ................................................. 231

Index ................................................................................ 283

ILLUSTRATION

Page 

Figure 1. Gaging-station structures: A, Otter Brook near Keene , N. H., B,

Pequabuck River at ForestvTlle, Conn., C, Mill River at Northampton,

Mass ...................................7................................ 4

2. Map of the United States showing areas covered by the 16 annual volumes

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

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

with median discharge for 25-year period................................ 13
SURFACE WATER SUPPLY OP WORTH ATLANTIC SLOPE BASINS, MAINE TO CONNECTICUT, 1951

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 

organisations 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 organisations that assisted in 

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

Connecticut: State Water Commission, E. J. McDonough, chairman, and Richard 

Martin, director; city of Hartford, Department of Public Works, C. W. Cooke, director; city of New Britain, Board of Water Commissioners, J. J. Kiniry, chairman. 

Maine: Maine Public Utilities Commission, F. E. Southard, chairman. 

Massachusetts: State Department of Public Health, Vlado Getting, commissioner, 

and C. I, Sterling, Jr., chief sanitary engineer; State Department of Public Works, 

W. F. Callahan, commissioner; Metropolitan District, Commission, W. T. Morrissey, 

commissioner, and H. J. Toole, director and chief engineer of Water Division. 

Mew Hampshire: Water Resources Board, W. G. White, chairman. 

Rhode Island: State Department of Public Works, Henry Ise', chief of Division 

of Harbors and Rivers.

Vermont: Water Conservation Board, Philip Shutler, commissioner.

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 38 gaging stations, of which 

12 were in Massachusetts, 16 in New Hampshire, 1 in Rhode Island, and 9 in Vermont. 

The following organisations aided in collecting records:

Connecticut: Metropolitan Water Bureau of Hartford, borough of Groton, cities of 

Bristol and Waterbury, Bridgeport Hydraulic Co., Collins Co., Connecticut Light & 

Power Co., Connecticut Power Co., Parmington River Power Co., Guilford-Chester Water 

Co., and Rockville Water & Aqueduct Co.

Maine: Bangor Hydro-Electric Co., St. Croix Paper Co., and Union Water Porter Co.

1
2 SURFACE WATER SUPPLY, 1951, PART 1A

Massachusetts: NPW England Power Association, Western Massachusetts Electric 

Co., and Worcester Electric Light Co.

New Hampshire: New England Power Association. 

Vermont: New England Power Association.

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 of 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 under the direction 

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

District office Address

Connecticut a/............. Hartford..................... 203 Federal Building.

Maine b/ ................... Augusta...................... 420 Statehouse.

Massachusetts c/ ........... Boston....................... 939 Post Office Building.

New Hampshire d/ ........... Boston, Mass................. Do....................

Rhode Island............... Do........................ Do....................

Vermont.................... Do........................ Do....................

a/ Except for Connecticut River at Thompsonville.

b/ Including Androscoggin River near Errol and near Gorham, N. H., Diamond River near Wentworth 

Location, N. H., and Saoo River near Conway, N. H.

c/ Including Connecticut River at Thompsonville, Conn.

d/ Except for Androscoggin River near Errol and near Oorham, Diamond River near Wentworth Location, and Saco River near Conway.

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 

is follows:

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

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

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

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

is distributed uniformly in time and area.

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

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

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

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

for irrigation.

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

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

and represents a runoff of 0.0372 inch from 1 square mile.
EXPLANATION OF DATA 3

Stage-discharge relation Is the relatlc:. 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. Unless otherwise Indicated, volume Is 

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

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

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

Figures of drainage area given herein Include all closed ~- 5 lns, or noncontrlbuting areas, 

within the area unless otherwise noted.

NEW DOWNSTREAM ORDER OF 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 main-stem station are listed before that station. If a tributary enters between two main-stem stations, 

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

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

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

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

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

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

tributary on which each gaging station is situated.

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

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

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

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

EXPLANATION OF DATA

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

of discharge. In addition, observations of factors affecting the stage-discharge relation, 

weather records, and other information are used to supplement base data in determining the 

daily flow. The records of stage are obtained either from direct readings on a nonrecording gage or from a water-stage recorder that gives a continuous record of fluctuations. 

Measurements of discharge are made with a current meter by the general methods adopted 

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

methods are described in Water-Supply Paper 888 and are also outlined in standard textbooks on the measurement of stream discharge. Typical structures in use at gaging stations are shown in figure 1.

Rating tables giving the discharge for any stage are prepared from stage-discharge 

relation curves defined by discharge measurements. If extensions to the rating curves
SURFACE WATER SUPPLY, 1951, PART 1A

A, OTTER BROOK NEAR KEENE, N. H.

B, PEQUABUCK RIVER AT FORESTVILLE, CONN.

C, MILL RIVER AT NORTHAMPTON, MASS.

FIGURE 1. GAGING-STATION STRUCTURES.
EXPLANATION OF DATA 5

are necessary to define the extremes of discharge, they are made on the basis 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 because of frequent or 

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

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

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

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

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

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

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

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

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

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

types of gages, locations, and datums of previous gages for which discharge records are 

generally equivalent to those at the present site. Under "Average discharge" is given the 

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

fewer than five complete years of record or for stations where changes in water develop-
6 SURFACE WATER SUPPLY, 1951, PART 1A

ment during the period of record cause the figure to have little significance. Under 

"Extremes" are given the maximum discharge and gage height; the minimum discharge if 

there is little or no regulation; the minimum daily discharge if there is extensive regulation (also the minimum discharge if useful); and the minimum gage height (unless it is 

of no importance). 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 

mirfimum 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. 

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
ACCURACY OP FIELD DATA AND COMPUTED RESULTS 7

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

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

station description.

In the table of daily discharge, the 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 month 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 per second per 

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

than 20 inches.

In the yearly summary below the monthly summary, the 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 stream for which 

the peaks are subject to substantial control by man.

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

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

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

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

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

For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs 

a table showing daily contents or stage is given. A skeleton table of capacity at given 

stages is usually given in the first report in which data for the re'ervoir 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 the stagedischarge relation or, if the control is unstable, the frequency of discharge measurements, 

and (2) the accuracy of observations of stage, measurements of discharge, and interpretation of records.

The station description states the degree of accuracy of the records. "Excellent" indicates that, in general, the error in the daily records is believed to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor," probably
more than 15 percent. The records of monthly and yearly mean discharge and runoff are, 

in general, more nearly accurate than the daily records.

Runoff at some stations, as indicated by the monthly mean, may vary widely from natural 

runoff, owing to diversion, consumption, regulation by storage, increase or decrease in 

evaporation due to artificial causes, or to other factors. For such stations, 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, unless 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 of the United 

States Is divided into 14 parts whose boundaries coincide with certain natural drainage 

lines. Formerly, the results of streamflow measurements were published in 14 volumes, one 

for each of the 14 parts. Beginning with the reports for 1951, the records are published 

in 18 volumes, there being 2 volumes each for Parts 1, 2, 3, and 6. The boundaries of the 

various parts are indicated by the following list and the map in figure 2.

Part 1. North Atlantic slope basins, in two volumes:

A, North Atlantic slope basins, Maine to Connecticut. 

B, North Atlantic slope basins, New York to York River.

2. South Atlantic slope and eastern Gulf of Mexico basins, in two volumes: 

A, South Atlantic slope basins, James River to Savannah River. 

B, South Atlantic slope and eastern Gulf of Mexico basins, Ogeechee River 

to Pearl River.

3. Ohio River basin, in two volumes:

A, Ohio River basin except Cumberland and Tennessee River basins. 

B, Cumberland and Tennessee River basins.

4. St. Lawrence River basin.

5. Hudson Bay and upper Mississippi River basins.

6. Missouri River basin, In two volumes:

A, Missouri River basin above Sioux City, Iowa. 

B, Missouri River basin below Sioux City, Iowa.

7. Lower Mississippi River basin.

8. Western Gulf of Mexico basins.

9. Colorado River basin.

10. The Great Basin.

11. Pacific slope basins in California.

12. Pacific slope basins in Washington and upper Columbia River basin.

13. Snake River basin.

14. Pacific slope basins in Oregon and lower Columbia River basin.

Water-supply papers and other publications of the Geological Survey containing data on 

the water resources of the United States may be purchased or consulted as follows:

1. Copies may be purchased from the Superintendent of Documents, Government Printing 

Office, Washington 25, D. C., who will, on application, furnish lists giving prices. A 

list of Geological Survey publications may also be obtained by applying to the Director, 

Geological Survey, Washington, D. C.
PUBLICATIONS
10 SURFACE WATER SUPPLY, 1951, PART 1A

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 1884-19O1, in reports of the Geological Survey 

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

Report

10th A pt. 2 

llth A pt. 2 

12th A pt. 2 

13th A pt. 3 

14th A pt. 2

16th A, pt. 2

18th A, pt. 4

19th A, pt. 4

20th 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.

Descriptions, measurements, gage heights, and ratings. ......

Descriptions, measurements, gage heights, and ratings. ...... 

Monthly discharge ...........................................

Year

1884 to September 189O. 

1884 to June 30, 1891. 

1884-92. 

1888-93. 

1893-94.

1895.

1896. 

1895-96. 

1897.

1897.

1897. 

1898.

1898.

1898. 

1899. 

1899. 

1900. 

1900. 

1901. 

1901.

Reports on surface-water supply containing records from 1899 to date for drainage 

basins in this report are listed below. The data for any particular gaging station will, 

in general, be found in the reports covering the years during which the station was maintained. Before 1951, records for the North Atlantic slope basins, Maine to Connecticut, 

were Included with those of the other rivers in the North Atlantic slope basins.

Numbers of water-supply papers containing results of stream measurements In North Atlantic 

slope basins, Maine to Connecticut, 1899-1951

Year

1899

19OO

1901

1902

1903

1904

1905

1906

1907-8

1909

1910

W.S.P.no.

35

47

65, 75

82

97

124

165

201

241

261

281

Year

1911

1912

1913

1914

1915

1916

1917

1918

1919-20

1921

W.S.P.no.

301

321

351

381

401

431

451

471

501

521

Year

1922

1923

1924

1925

1926

1927

1928

1929

1930

1931

W.S.P.no.

541

561

581

601

621

641

661

681

696

711

Year

1932

1933

1934

1935

1936

1937

1938

1939

1940

1941

W.S.P.no.

726

741

756

781

801

821

851

871

891

921

Year

1942

1943

1944

1945

1946

1947

1948

1949

1950

1951

W.S.P.no.

951

971

1001

1031

1051

1081

1111

1141

1171

1201

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.
PUBLICATIONS 11

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

871 for the North Atlantic slope basins, Maine to Connecticut) contains, for the area included in that report, a summary of yearly discharge at gaging stations at which 10 or 

mere 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 North Atlantic slope basins, Maine to Connecticut.

Reports containing compilatic ecords of discharge by States and drainage basins

Water-supply 

Paper No.

1105.. ......

Period Report

flow and precipitation records

Records of discharge have been published also in State reports. Some of these are not 

contained in the publications of the Geological Survey or are revisions of records previously published in its water-supply papers. The following table contains a list of 

these reports for the area covered by this report.

State reports containing compilationa ecords of discharge

State

Connecticut. . . 

Do. ........

Maine. ........

New Hampshire. 

Rhode Island. .

Do. ........

Period

1900-1927

1887-1920

1889-1922 

1929-41

1929-50

Report

Bull. 44, Water resources of Connecticut.....

1st annual report. ...........................

Annual and statistical report, vol. 12....... 

7th annual report ............................

Ground-water resources of Rhode Island. ......

Issued by

State Geological and Natural History Survey.

Maine Water Power Commission. 

Public Service Commission 

Department of Public 

Works . 

Rhode Island Development 

Council.

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

have issued annual or biennial reports in which are contained records of discharge: Connecticut, 

Maine, and Rhode Island.

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 and compilations of data relating to earlier notable floods. The following list gives the numbers and titles of these reports:

"lape^E^ Title

162......... Destructive floods in the United States in 1905.

636-C ....... The New England flood of November 1927.

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

798......... The floods of March 1936, Part 1, New England rivers.

836-A....... Stages and flood discharges of the Connecticut River at Hartford, Conn.

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

867......... Hurricane floods of September 1938.

966......... Minor floods of 1938 in North Atlantic States.

967-C....... Flood of August 21, 1939, in town of Baldwin, Maine.
SURFACE WATER SUPPLY, 1951, PART 1A

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The table below contains a list of gaging stations for the area covered by this report, 

at which records of discharge were collected during the water year October 1950 to September 1951 by agencies other than the Geological Survey. The records of these stations are 

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

elsewhere.

Records of discharge collected by agencies other than the Geological Survey

Stream

Kennebec River. ........

Race Brook. ............ 

Saco River. ............

Penobscot River.

West River. ............

Location

Bingham, Maine. .................

Orange, Conn. ...................

Gullford, Conn. .................

Period

1931-51

1911-51

1930-51

Collected by

Do.

New Haven Water Co.

Do.

HYDROLOGIC CONDITIONS

Streamflow during the 1951 water year was above normal in most of the North Atlantic 

slope basins, Maine to Connecticut with the exception of Rhode Island and eastern Massachusetts where flows were near or slightly below normal. Floods in Connecticut and Maine 

in November and December are described in Water-Supply Paper 1137-1, now in preparation. 

For two key stations in the area covered by this report, a comparison of monthly and 

yearly mean discharges during the 1951 water year with the median discharge for the 

25-year period 1921-45 is shown in figure 3 on the following page.
HYDROLOGIC CONDITIONS

3000

2000

Piscataquis River near Dover-Foxcroft, Maine 

Drainage area, 29V sq mi.

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

year

Quinebaug River at Jewett City, Conn 

Drainage area, 711 sq mi.

Oct. Nov. Dec. Jar,. Fsb. Mar. Apr. May

Explanation

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

onthly mean discharge during water year 1951.

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

median discharge for 25-year period.
GAGING-STATION RECORDS

ST. JOHN RIVER BASIN

St. John River at Ninemile Bridge, Maine

Location. Lat 46°42', long. 69°43', T. 12, R. 15, Aroostook County, on right bank about 

U.1 mile below Ninemile Brook, 0.4 mile downstream from highway bridge at Ninemile, 

and 11 miles northwest of Clayton Lake Post Office.

Drainage area.--1,290 sq ml, approximately.

Records available. November 1950 to September 1951.

Gage. Water-stage recorder. Altitude of gage about 1,050 ft.

Extremes.--Maximum dally discharge during period, 18,800 cfs Apr. 11, 12; minimum dls- 

 charge, 243 cfs June 19, 20.

Remarks. Records fair prior to May 10, excellent thereafter.

Rating table, Nov. 28, 1950, to Sept. 30, 1951, except periods of ice effect (gage 

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

1.0

1.1 

1.3 

1.5

235

273

368

484

1.7 

2.0 

2.3 

2.6

625

882

1,180

1,570

3.0 

3.5 

4.0 

4.5

2,180

3,100

4,230

5,550

5.0 

6.0 

7.0 

8.1

7,050

10,700

14,600

19,200

Discharge , In cubic feet per second, November 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

Tota:

Mean

Cfsm

In.

Oct. Nov.

_

_

_

_

-

-

_

-

_

_

_

-

_

_

_

_

-

.

-

_

-

_

*12,800

*15,100

16,100

-

_

-

-

Dec.

14 , 100

8^380

6,990

6,300

7,250

6,210 

5,440

4,850

6,210

8,340

9,180

13,000

11,100

7,990

5,440

4,160

*3 , 180

2,350

1,820

1,420

1,170 

1,000

835

700

610

480

580

595

590

590

151,860

4,899

3.8O

4.38

Jan.

580

580

580

590

650

640

635 

620

610

610

595

590

580

575

560

560

*550

540

540

530

520

510 

505

490

480

470

445

440

*420

420

410

16,825

543

0.421

0.49

Feb.

410

4OO

390

380

375

370

370 

380

420

490

550

610

780

96O

1,100

1,O80

1,060

1,010

970

940

915

885 

860

840

815

790

770

750

_

_

-

19,670

7 O2

0.544

C.!37

Mar.

740

72O

710

695

680

675

670 

660

650

640

635

630

630

680

*800

865

900

910

900

870

840

810 

790

760

740

730

715

700

695

695

730

22,865

738

0.572

0.66

Apr.

995

1,450

2,i8O

3,100

5,500

7,790

10,30O 

12,700

15, ZOO

16,900

18,80O

18 800

17 , 100

15,300

13.7OO

13,700

13,800

13,000

10,700

8,7OO

7,89O

7,310 

7,690

8,810

10,100

11,100

11,500

12,800

13 , 4OO

14 , 400

-

324,755

10 , 830

8.40

9.37

May

14,200

1] ,600

9,900

9,000

8,OOO

7,100

6,400 

5,700

*5,300

5,200

4,750

4,280

4,390

4,330

3,780

3,510

3,440

3,100

2,640

*2,260

2,020

1,930 

2,820

4,540

4,060

*3,20O

2,480

2,O7O

2,660

3,230

2,940

150,830

4,865

3.77

4.35

June

2,440

2,000

1,630

1,380

1,310

1,410

1,330 

1,310

1,130

956

801

649

551

441

335

*330

3O4

282

258

250

273

300 

273

575

1,330

2,200

1,820

1,310

984

846

-

29,008

967

0.750

0.84

July

946

864

846

828

775

4,360

9,830 

7,340

4,740

3,000

2,040

1,660

2,250

*2,510

1,960

1,700

2,100

2,120

1,620

1,700

2,070

1,630 

1,220

946

698

573

610

828

633

491

401

63,289

2,042

1.58

1.82

Aug.

343

30O

314

960

2,280

1,720

1,150 

810

666

873

855

666

497

390

323

278

286

785

2,800

2,900

2,260

2,040 

2,250

1,960

1,630

1,310

1,080

1,430

1,580

1,230

1,050

37,016

1,194

0.926

1.07

Sept.

1,930

2,770

2 ,280

2,200

2,000

1,540

1,280 

1,330

1,150

919

732

603

524

447

406

368

368

*356

343

309

282

254

246

250

338

338

429

429

581

573

-

25,577

853

0.661

0.74

Calendar year : Max Mln Mean Cfsm In.

Water year : Max Min Mean Cfsm In.

* Discharge measurement made on this day. 

Note. No gage-height record Apr. 9 to May 9; discharge 

at Dickey. Stage-discharge relation affected by ice Dec.

computed on basis of re 

5 to Apr. 8.

ords for station
ST. JOHN RIVER BASIN 15 

St. John River at Dickey, Maine

Location.--Lat 47°06'40", long. 69°05'15", on right bank at Dickey, Aroostook County,

 0.6 mile downstream from Little Black River and 2.5 miles upstream from Allagash River.

Drainage area.--C,700 sq mi, approximately.

Records available.--July 1910 to November 1911 (published as "near Dickey"), September 

1945" to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 590 ft (from topographic map). July 5,

 1910, to Nov. 21, 1911, staff gage at site 1,000 ft downstream at different datum.

Average discharge.--5 years (194C-51), 4,582 cfs.

Extremes.--Maximum discharge during year, 45,100 cfs Apr. 12 (gage height, 13.32 ft); maximum gage height, 16.17 ft Apr. 5 (backwater from ice); minimum discharge, 480 cfs Oct. 

10 (gage height, 1.80 ft).

1910-11, 1946-51: Maximum discharge, 138.70U cfs May 9, 1947, from rating curve 

extended above 33,000 cfs by logarithmic plotting; maximum gage height, 18.63 ft Apr. 

20, 1950 (backwater from ice); minimum discharge, 129 cfs Sept. 17, 1948.

Remarks.--Records good except those for periods of ice effect, which are fair. 

Revisions.--W 1141: Drainage area.

Rating tables, 

height,

water year 1950-51, excepi periods of Ice effect (gage 

n feet, and discharge, in cutic feet per second)

4.2

Oct. 1 to Apr

480

t>45

830

l.ltO

l,7tO

2,650

3,730

10. C

11.C

5,530

8,240

11,400

17,300

24,500

30,000

3.0 

3.6 

4.2

Apr. 10 to Sept. 30

577

750

940 

1,250

1,890 ] 

2,850 ] 

4,010

5,810 

8,500 

11,600 

17.3OO 

24,500 

4O,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

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

99b

890

802

754

b81

oZO

586

552

528

504

512

6u2

1,040

2,930

5,990

4,740

3.550

2,780

2 , 430

2, BOO

3,270

3,550 

3,180

2,760

2,460

2,490

3,340

3,810

3 , 420

3,120

3,400

t&,887

2,222

0.823

0.95

Nov.

3,710

3,440

3,050

2,900

5,580

20,800

22,700

lb,700

12,900

11,000

9,910

8,130

b,530

5,280

4,490

4,010

4,060

4,580

4,740

4,210

4,790

8,020 

8,520

6,b90

5,660

5,090

5,840

17 , 5OO

28,500

31,700

-

281,030

9,3b8

3.47

3.87

Dec.

27,900

20,200

14,200

10,800

10,600

14,000

IZ.bOO

10,200

9,570

15,000

17,200

18,700

26,900

23,200

16,600

11,400

a.boo

7,180

5,810

4,230

*3,250

2,520 

2,120

1,770

1,500

1,260

930

1,560

1,250

1,240

1,230

303,220

9,781

3.62

4.17

Jan.

,240

,220

,190

,180

,360

,370

,360

,340

,310

,280

,2bO

,250

,230

,190

,180

,170

,160

,150

,150

* ,150

,150

,140 

,110

I,0b0

1,040

1,020

975

950

930

920

900

35,935

1,159

0.429

0.49

Feb.

850

830

810

790

755

745

735 775-

870

1,020

1,160

1,280

1,630

2,010

2,510

2,220

2 , 100

2,000

1,930

1,840

1,790

1,700 

1,620

1,550

» 1,500

1,430

1,390

1,360

_

-

-

39,000

1,393

O.Slb

0.54

Mar.

,280

,250

,190

,170

,130

,080

,050

,020

995

975

950

930

920

995

1,110

1,240

1,340

1,400

1,420

1,390

1,370

1,340 

1,310

» 1,2 70

1,260

1,250

1,230

1,190

1,180

1,170

1,260

36,665

1,183

0.438

0.50

Apr.

2,240

3,610

5,530

8,130

11,600

17,800

20,500

25,300

29,600

35,700

40,100

40,300

36,400

30,800

29,000

29,700

28,700

25,900

21,600

13,400

16,600

15,400 

15,600

19,600

21,400

*2 1,500

25,100

2 5 , 500

25,800

30,300

-

677,710

22,500

8.37

9.34

May

30,500

24,600

18,800

14,900

12,400

11,000

10,500

10,500

10,80O

10,900

10 , 400

9 , 430

9,520

9,280

8,350

7,790

7,560

6,910

b,lOO

5,280

4,800

4,670 

6,OOO

9, 130

9,430

7,5bO

6,030

4,980

6,400

8,740

8,230

311,490

10,050

3.72

4.29

June

6,730

5 , 500

4,630

4,300

7,590

7,540

6,120

4,380

4,240

*3,660

3, 100

2 , 600

2,240

1 , 940

1,700

1,570

*1,480

1,430

1,310

1,220

1,090

1,000 

1,000

2,030

3,540

6,120

5,930

3,520

3,190

2,650

-

103,950

3,465

1.28

1.43

July

2,610

3,070

2,920

2,530

2,670

10,200

23,400

21,600

13 , 400

8,590

5,980

4,650

4,300

4,740

4,470

3,780

3,620

3,970

3,700

3,300

3,840

4,160 

3,320

2,580

2,080

1,710

1,670

1,570

1,610

1,420

1,230

158,690

5,119

1.90

2.19

Aug.

1,150

1,100

1,110

2,040

2,830

3,820

2,890

2,100

1,750

1,670

1,760

1,740

1,470

1,200

1 , 030

892

864

1,160"

2,250

4,850

4,350

3,620 

3,520

3,720

3,290

2,730

2,240

1,900

2,070

2,290

2,040

69,446

2,240

0.830

0.96

Sept.

2,060

3,170

3,930

3,340

3,190

2,83O

2,330

2,060

2,060

1,880

1,610

1,370

1,220

1,080

1,010

940

902

845

816

76O

705

669 

644

635

627

644

816

864

950

960

-

44,917

1,497

0.554

0.62

Calendar year 1950: Max 32,200 Min 285 Mean 4,724 Cfsm 1.75 In. 23.74

Water year 1950-51: Max 40,300 Min b27 Mean 5,838 Cfsm 2.16 In. 29.35

Peak discharge (base, 27,000 cfs). Nov. 30 (3 p.m.) 33,900 cfs (11.68 ft): Dec. 13 (4 p.m.) 

28,200 cfs (10.69 ft); Apr. 12 (3 a.m.) 45,100 cfs (13.32 ft); May 1 (l a.m.) 32,400 cfs (11.44 ft).

. 22 to Apr. 8 (no gage-height record Jan. 7-12, 

cords and records for nearty stations).
16 ST. JOHN RIVER BASIN

Allagash River near Allagash, Maine

Location.--Lat 47°04'15", long. 69°04'50", on left bank a quarter of a mile upstream 

from Allagash Inn and 3 miles upstream from mouth and village of Allagash, Aroostook 

County.

Drainage area.--1,250 sq mi, approximately (not including about 240 sq mi drained "by 

ChamDeriain Lake through Telos Canal).

Records available.--July 1910 to November 1911, September 1931 to September 1951.

Sage.--Water-stage recorder. Datum of gage is 604.6 ft above mean sea level, datum of 

T929. July 1910 to November 1911, staff gage at site of discontinued ferry 3 miles 

downstream at different datum.

Average discharge.--20 years (1931-51), 1,903 cfs.

Extremes.--Maximum discharge during year, 10,400 cfs Dec. 13 (gage height, 7.67 ft);

maximum gage height, 10.36 ft Apr. 15 (backwater from ice); minimum discharge, 372 cfs 

Sept. 30 (gage height, C.19 ft).

1910-11, 1931-51: Maximum discharge, 23,400 cfs May 5, 1933 (gage height, 11.32 

ft); maximum gage height, 13.14 ft May 1, 1939 (ice jam); minimum discharge, 91 cfs 

Mar. 9-15, 1948.

Remarks.--Records good except those for periods of ice effect, which are fair. Some 

storage in lakes above station.

Revisions.--W 726: Drainage area.

Rating tables 

height,

water year 1950-51, except periods of Ice effect (gage 

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

2.4

2.6 

2.8 

3.1

3.5

Oct. 1 to Apr. 15

395

465

620

800

1,110

Apr. 16 to Sept. 30

378

503

640

800

1,100

1,590

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.

Oct.

612

588

564

556

532

518

502

472

465

451

458

480

604

724

654

580

510

472

465

532

637

637

596

604

612

680

724

705

696

696

705

18,031

582

0.466

0.54

Nov.

705

705

696

724

1,590

3,410

3,050

2,750

2,630

2,530

2,280

2,090

1,930

1,790

1,680

1,600

1,630

1,670

1, 540

1,470

1,800

2,590

2,340

2,080

2,030

1,940

2,670

4,470

6,470

7.460

-

70,320

2,344

1.88

2.10

Dec .

6,630

5,800

5,150

4,790

5,150

5,450

4,690

4,270

4,310

4,980

4,850

7,420

9.860

7,890

6,820

5,960

5,670

5,210

4,690

4,110

*3,810

3,490

3,240

3,020

2,850

2,300

1,900

1,820

1,690

1,620

1,580

141,020

4,549

3.64

4.20

Jan.

1,560

1,550

1,540

1,540

1.600

1,560

1,500

1,460

1,440

1,390

1,350

1,320

1,290

1,270

1,220

1,200

1,180

1,140

1,120

*1,080

1,070

1,040

1,020

1,020

1,000

980

950

920

900

880

840

37,930

1,224

0.979

1.13

Feb.

820

800

780

760

735

725

725

880

1,190

1,440

1,590

1,630

1,620

1,550

1,490

1,420

1,390

1,330

1,270

1,240

1,200

1,150

1,130

1,090

*1,040

1,030

1,020

990

_

_

-

32,035

1,144

0.915

0.95

Mar.

980

950

920

900

880

860

850

830

810

800

790

780

770

750

750

800

860

830

800

780

770

745

725

*695

695

690

660

655

690

715

790

24,520

791

0.633

0.73

Apr.

980

1,220

1,590

2,150

3,020

3,720

4,490

S, 320

6,090

6,770

7,640

8,070

7,970

7,990

8,510

8,840

8,490

7,810

7,210

6,870

6,490

6,050

6,330

7,240

6,790

*7,340

8,280

8,070

8,440

9.290

-

189,070

6,302

5.04

5.62

May

8.280

7,610

7,040

6,540

5,890

5,520

5,360

5,190

4,310

4,110

3,920

3,830

4,020

3,890

3,630

3, 630

5,360

4, 430

2,870

2.470

3,080

4,670

5,670

5,740

5,100

4, 630

4,250

4,040

4,830

5,060

4,710

149,680

4,828

3.86

4.45

June

4,290

3,900

3,580

3,470

4,130

5.740

5,390

3,170

2,910

*2, 690

2,510

2,320

2,150

1,970

1,930

1,960

1,890

1,730

1,590

1,470

1,360

1,280

1.270

1,680

1,860

2,120

1, 850

1,640

1,470

1,430

-

74,750

2,492

1.99

2.22

July

1,330

1,330

1,250

1,180

1,280

3,790

4.920

3,960

3,290

2,850

2,450

2,380

2, 160

1,490

1, 190

1, 190

1,400

1,220

1, 100

1,210

1,310

1, 110

980

872

809

792

784

736

712

664

640

50,379

1,625

1.30

1.50

Aug.

648

640

640

792

890

784

664

612

*640

656

640

605

570

550

523

503

530

728

1,560

1,290

940

890

990

1,010

990

872

792

744

720

704

752

23,669

764

0.611

0.70

Sept.

900

980

863

910

910

800

784

836

712

664

633

619

584

563

563

563

563

550

503

490

470

444

451

451

444

438

426

426

408

578

-

18,326

611

0.489

0.55

Calendar year 1950: Max 9,860 Min 395 Mean 1,905 Cfsm 1.52 In. 20.70

Water year 1950-51: Max 9,860 Min 378 Mean 2,273 Cfsm 1.82 In. 24.69

Peak discharge (base, 5,700 cfs). --Dec. 13 (5 a.m.) 10,400 cfs (7.67 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 21 to Apr. 15.
ST. JOHN RIVER BASIN 

St. John River "below Fish River, at Fort Kent, Maine

Location. Lat 47°15'27 n , long. 68°35'37 M , on right "bank at Fort Kent, Aroostook County, 

a quarter of a mile downstream from Fish River.

Drainage area.--5,690 eq mi, approximately (not including about 240 sq mi drained by 

Chamberlain Lake through Telos Canal).

Records available.--October 19S6 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 488.9 ft above mean sea level, datum of 

1929. Prior to Oct. 10, 1933, staff gage on opposite bank at same datum.

Average discharge.--"5 years, 9,518 cfs.

Extremes.--Maximum discharge during year, 77,800 cfs Apr. 10 (gage height, 19.30 ft); 

minimum, 1,200 cfs Oct. 10, 11 (gage height, 1.47 ft).

1936-51: Maximum discharge, 121,000 cfs May 5, 1933 (gage height, 25.1 ft); minimum daily, 510 cfs Mar. 13-15, 1948.

Remarks.--Records excellent except those for periods of ice effect or no gage-height 

record, which are fair.

Rating table, water year 1950-51, except periods c 

height, In feet, and discharge In cubic feet

Ice effect (gage

er second)

Oct. 1 to Apr Apr. 10 to Sept. 3O

1.5 

2.5 

3.5 

4.5 

6.0

1,220

2,150

3,420

5,140

8,600

7.5 12,800

9.0 17,700

11.0 25,600

13.0 35,300

15.5 49,900

760

890

350

280

100

9.5 20,100

11.0 26,500

13.0 36,500

15.O 47,900

18.5 71,600

O.U ±* DUU

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

51

Total

Mean

Cfsm

In.

Oct.

1,990

1,850

1,720

1,650

1,530

1,430

1,360

1,320

1,270

1.210

1,280

1,380

1,630

2,540

6,200

6.500

5,180

4,160

3,660

3,690

4,210

4,810

4,710

4,240

3,860

3,690

4,160

5,2OO

5,04O

4,620

4,580

100,660

3,247

0.571

0.66

Nov.

5,040

5, 000

4,640

4.450

6,590

19,500

26,800

22,400

18,000

15,900

14,900

13,300

11,400

9,890

8,780

7,900

7,800

8,120

8,420

7,950

8,300

11,500

15,600

11,700

10, 800

10, 600

12,200

21,400

a40,000

a48.500

-

415,180

13,840

2.45

2.71

Dec.

a44,500

a37,200

30,200

25,000

24,000

26,900

26,400

23,100

21,900

25,600

30,600

36,800

49.800

48,600

39,800

31,900

26,500

23,200

20,100

17 , 300

14, 100

12,800

11,600

10,500

9,380

8,350

7,470

7,060

6,680

6,430

6.050

709,820

22,900

4.02

4.64

Jan.

5.760

5,550

5,340

5,300

5,380

5,320

5,120

4,940

4,750

4,660

4,540

4,450

4,380

4,350

4,300

4,210

4,070

5,960

5,850

5,720

5,600

5,540

5,460

3,420

3,410

3,590

5,550

5,520

5,290

5,280

5,280

151,290

4,255

0.744

0.86

Feb.

3,280

3,270

5,270

3.250

3,250

5,250

5,270

5,690

4,110

4,550

4,620

5,020

5,540

5.580

5,300

5,100

4,940

4,770

4,600

4,450

4,380

4,350

4,500

4,260

4,240

*4, 180

4,120

4,110

-

_

-

118,450

4,230

0.745

0.77

Mar.

4,020

3,960

5,910

5,830

3,750

5,680

5,600

5,540

5,480

5,410

5,590

5,550

5,310

3,280

5,310

3,600

3,620

5,570

5,520

5,450

5,570

5,450

5,580

5,270

*5,150

5,140

5,150

3,100

5,040

3,080

5,170

107 , 060

5,454

0.607

0.70

Apr.

5j_570

4,560

6,780

9,580

12,500

19,200

27,500

58, 600

49,700

63,900

69,300

71.800

67,000

61,300

58,400

58,800

57,600

55,500

47,600

42,600

38,800

35,900

34,900

39, 100

41,600

*42,100

47,400

48,600

48,900

53,700

-

1,254,590

41,820

7.35

8.20

May

55.600

48,400

40, 100

33,900

29,300

26,100

24,500

23,600

22,900

22,100

21, 200

19,500

19,400

19,000

17, 600

16,500

17,100

16,700

14,100

12,200

11.500

12,800

14, 700

18,200

18,800

16,700

14, 600

12,900

13, 800

17,100

17,300

668,000

21,550

3.79

4.37

June

15,400

13,600

12,100

11, 600

15,000

16.100

14,500

12,900

11,700

*10,700

9,750

8,870

7,990

7,280

6,700

*6,410

6,210

5,810

5,420

5,O30

4,660

4,290

4. 160

5,140

6,900

10,000

10,700

9,190

7,590

6,740

-

272,440

9,081

1.60

1.78

July

6,350

6,610

6,630

6,040

6,240

14,900

33,100

54,800

26,400

19,900

15,500

15,200

12,300

11, 300

10,800

9,780

9,360

9,170

8,950

8,650

8, 680

9,360

8,230

7,060

6,170

5,560

5,240

5,010

4,710

4,550

4.160

338,710

10,930

1.92

2.21

Aug.

4,02O

5,850

5,700

4,400

5,870

6,320

5,810

*4,830

4,330

4,140

3,940

5,940

5,660

3,260

2,960

2,670

2,590

3,130

4,160

6,570

7.170

6,430

6,100

6,410

6,350

5,640

5,000

4,540

4,220

4,620

4,570

145,200

4,684

0.825

0.95

Sept.

4,600

4,870

6.590

6,100

5,680

5,540

4,800

4,580

4,190

4,050

3,720

3,410

5,190

2,900

2,750

2,660

2,560

2,450

2,540

2,220

2,150

2,000

1,950

1,920

1,870

1,850

1,880

2,050

2,050

2,050

-

98,270

5,276

0.576

0.64

Calendar year 1950: Max 65,400 Mln 1,210 Mean 9,469 Cfsm 1.66 In. 22.57

Water year 1950.51: Max 71,800 Mln 1,210 Mean 11,940 Cfsm 2.10 In. 28.49

Peak discharge (base. 45.OOP cfs).--Apr. 10 (2 p.m.) 77,800 cfs (19.50 ft)j May 1 (7 a.m.) 56,700 

cfs (16.40 ft)T

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for nearuy stations.

Note.--Stage-discharge relation affected by Ice Dec. 22 to Apr. 9.
18 ST. JOHN RIVER BASIN 

Fish River near Fort Kent, Maine

Location.--Lat 47°14'15", long. 6S°34'55", on right bank 300 ft upstream from highway

 bridge at Fort Kent Mills, 2 miles upstream from mouth, and C miles south of Fort 

Kent, Aroostook County.

Drainage area.--871 sq mi.

Records available.--July 1903 to December 1908, May to November 1911, September 1929 to 

September 1951. Published as "at Wallagrass" 1903-8, 1911.

Gage.--Water-stage recorder. Datum of gage is 511.4 ft above mean sea level, datum of

 1929. July 1903 to December 1908 and May to November 1911, chain gage at site 10 

miles upstream at different datum.

Average discharge.--22 years (1929-51), 1,353 cfs.

Extremes.--Maximum discharge during year, 8,600 cfs Apr. 16 (gage height, 9.05 ft); min-

 imum, 46 cfs Oct. 9, 10 (gage height, 2.06 ft).

1903-8, 1911, 1929-51: Maximum discharge, 11,000 cfs Apr. 26, 1934, May 8, 1947; 

maximum gage height, 10.50 ft Apr. 26, 1934; minimum discharge, 47 cfs Oct. 13, 14, 

1905.

Remarks.--Records excellent except those below 100 cfs, which are good, and those for 

periods of ice effect or no gage-height record, which are fair. Large lake area 

above station has not yet been developed for storage.

Revisions.--W 1001: Drainage area.

atlng 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. 13 Mar. 14 to Sept. 30

2.1

2.2 

2.5

2.4

2.5

98

125

154

2.6

2.7 

2.9 

5.1 

5.5

185

218

290

575

575

4.0 

5.0 

6.0 

7.0 

8.4

900

1,850

3,210

4,850

7,400

3.0 

3.3 

5.6 

4.0 

4.5

335

479

654

930

1,350

5.0 1,860

6.0 5,210

7.5 5,750

9.1 8,690

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

Ofsm

In.

Oct.

89

86

80

62

58

60

58

56

50

50

60

82

109

106

91

84

84

82

93

105

101

101

101

106

122

117

114

117 

122

125

122

2,791

90.0

0.103

0.12

Nov.

122

128

128

142

326

435

420

406

396

401

420

460

510

505

500

510

553

570

575

599

695

812

825

878

1,300

1,880

2,170

3,190 

4,110

4,170

-

28,136

958

1.08

1.20

Dec.

4,450

5,460

5,170

4,870

4,850

4,830

4,760

4,540

4,490

4,660

4,690

6,340

7,140

7,560

6,940

6,560

6,140

5,660

5,280

4,870

*4, 540

4,550

4,010

3,720

3,500

3,240

2,990

2,760 

2,570

2,380

2,220

145,520

4,688

5.58

6.20

Jan.

2,090

1,970

1,850

1,750

1,680

1,580

1,500

1,450

1,350

1,500

1,240

1,210

1,150

1,110

1,080

1,060

1,040

1,000

975

960

940

870

840

825

820

810

805

785 

775

765

765

36,525

1,172

1.55

1.56

Feb.

760

755

745

745

740

740

775

840

975

1,150

,290

.510

,290

,240

,200

,150

,110

,070

,040

,000

975

960

960

990

975

*950

915

885

_

-

27,495

982

1.15

1.18

Mar.

855

840

820

790

780

760

745

755

715

700

695

685

670

680

667

700

706

700

706

726

755

759

*739

735

759

739

719

700 

686

695

700

22,615

730

0.838

0.97

Apr.

760

879

1,300

2,380

2,560

3,080

5,720

4,410

5,240

6,010

6,900

7,440

7,810

8,250

8,470

8.580

8,550

8,560

8,080

7,810

7,470

7,100

6,900

6,790

6,550

6,550

*6,710

6,770 

6,710

6,620

-

178,739

5,958

6.84

7.63

May

6,470

6,200

5,900

5,550

5,260

4,920

4,640

4,410

4,190

3,950

3,750

5,510

3,370

5,210

2,960

2,780

2, £20

2,470

2,510

2,190

2,070

1,990

1,950

1,960

1,890

1,820

1,750

1.700 

1,720

1,800

1,800

101,090

5,261

3.74

4.31

June

1, 800

1,750

1,710

1,790

1,960

1,930

1,960

1,960

1,950

1,900

1,850

1,780

1,690

1,640

1,550

*1,430

1,580

1,520

1,250

1,180

1,110

1,020

1,010

1,100

1,150

1,180

1,170

1,160 

1,150

1,110

-

44,940

1,498

1.72

1.92

July

1,100

1,090

1,040

994

1,050

1,910

2,430

2,590

2,660

2,640

2,600

2,640

2,630

2,600

2,500

2,470

2,370

2,250

2,200

2,210

2,240

2,290

2,090

1,900

1,790

1,700

1,630

1,530 

1,430

1,300

1,240

61,114

1,971

2.26

2.61

Aug.

,170

,090

,070

,070

,050

970

930

*886

857

850

787

753

706

660

655

592

592

755

773

726

726

815

856

864

925

925

915

908

864

857

857

26,368

851

0.977

1.13

Sept.

864

829

856

850

794

780

753

726

719

693

660

686

712

654

611

592

586

551

528

507

484

458

452

427

427

393

389

384

361

544

18,050

601

0.690

0.77

Calendar year 1950: Max 6,530 Min 50 Mean 1,436 Cfsm 1,65 In. 22.37

Water year 1950-51: Max 8,580 Min so Mean 1,399 Cfsm 2.18 !" 29.60

sak discharge (base. 5.700 cfs).--Apr. 16 (7 to 10 a.m.) 8,600 cfs (9.05 ft).

* Discharge made on this day. 

Note. No gage-height record Dec. 21 to Jan. 20; discharge computed on basis of records for nearby stations. stage-discharge relation affected by ice Jan. 21 to Mar. 13.
ST. JOHN RIVER BASIN 

Aroostook River at Washburn, Maine

19

Location.--Lat 46°46'35", long. 66°0d'30", on right bank just upstream from Bangor & 

Aroostook Railroad bridge, 0.1 mile downstream from Salmon Brook and 1 mile south of 

railroad station at Washburn, Aroostook County.

Drainage area.--1,630 sqmi, approximately. 

Records available.--August 1930 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 436.4 ft above mean sea level, datum of 

 T929. Prior to Oct. 1, 1948, at datum 2.0 ft higher.

Average discharge.--:]! years, 2,494 cfs.

Extremes.--Maximurn discharge during year, 23,000 cfs Nov. 30 (gage height, 10.02 ft); 

maximum gage height, 15.78 ft Apr. 6 (backwater from ice); minimum discharge, 438 cfs 

Oct. 2 (gage height, 2.17 ft).

1930-51: Maximum discharge, 37,800 cfs Mar. 22, 1936; maximum gage height, that 

of Apr. 6, 1951; minimum daily discharge, 75 cfs Feb. 13-15, 1948.

Remarks.--Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Flow partly regulated by Squapan Lake (capacity, 2,554,000,000 

cu ft) and by Millinocket Lake (capacity, 1,007,000,000 cu ft) used for power, arid 

Machias and Rowe Lakes (combined capacity, about 280,000,000 cu ft) used for log 

driving.

Revisions (water years).--W 951: 1935.

Rating tables, water year 195O-51, except periods of Ice effect (gage height, in feet, and 

discharge, in cubic feet per second)

2.2 

2.4 

2.6 

2.8

460

626

820

,050

3.0 1,320

Oct. 1 to Apr. 7

3.3 1,750

3.6 2,210

4,0 2,900

4,6 4,090

5.2 5,450

pr. 8 to Sept. 30

6.0 

7.0 

8.0 

9.0

7,42O

10,300

13,800

17,500

10.2 22,900

2.3

2.4 

2.6 

2.8 

3.0

584

678

882

1,110

1,380

3.3 

3.6

4.0 

4.6 

5.2

1,820

2,290

3,010

4,240

5,630

6.0

7.0 

8.0 

9.0 

9.5

7,730

10,800

14,300

18,3OO 

20,600

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

Day

1

3

4

5

6

7

8

9

10

11I"

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Oct.

617 

654

864

582

673

692

583

626

532

524

516

574

592

682

682

600

574

609

664

654

740

800

790

740

711

740

820

820

800

780

750

21,085

680

Nov.

740 770

740

750

1,410

3,300

3,980'

3,540

2,850

2,420

2 , 100

1,810

1,600

1,540

1 , 500

1,330

1,280

1,380

1,430

1,390

2,040

4,820

6,160

5,700

4,760

3,900

5,400

12,700

20,200

22,600

-

124,140

4,138

Dec.

18,700 

14 , 400

10,500

8,240

7,210

7,880

7,560

6,820

6,040

7,420

8,840

15,600

21 , 400

21,400

18 ' 100

13,600

9,630

7,580

5,780

*3,940

3,460

3,090

2,850

2,580

2,400

2,240

2,150

2,040

1,980

1,930

1.880

247 , 240

7,975

Jan.

1,880 

1,860

1 , 86U

1,9OO

2,040

1,990

1,920

1,870

1,810

1,750

1,720

1,680

1.62O

1,570

1,530

1,490

1,460

1,430

*1,390

1,350

*1,330

1,320

1,290

1,280

1,250

1,210

1,190

1,180

1,170

1,140

Ijl2_0

47,600

1,535

Feb.

1,090 

1,080

1,060

1,050

1,040

1,050

1,390

1,750

2,230

2,810

2,960

2,810

2,680

2,540

2,420

2,350

2,260

2,210

2,080

2,040

1,930

1,900

1,870

1,780

1,750

1,740

*1,700

1,660

_

_

-

53,230

1,901

Mar.

1,620 

1,600

1,560

1,520

1,470

1 , 460

1,420

1,390

1,350

1,320

1,310

1,290

1,280

1,280

1,350

1,720

1,940

1,940

1,900

1,820

1,760

1,740

*1,680

1,640

1,600

1,590

1,590

1,570

1,690

1,820

1,990

49,210

1,587

Apr.

2,340

2,860

3,680

4,990

7,320

12,300

14,500

17,000

17,500

19,300

19,900

20,300

19 ,400

18,200

16,700

16,300

16,200

15,000

13,100

11,300

9,760

8,590

8,130

9,130

*9,880

10,200

*12,500

12,800

11,800

11,800

-

372,780

12,430

May

11,200 

9,880

8,470

6,880

5,900

5,270

4,940

4,370

4,220

3,920

3,940

3,700

3,560

3,360

3,160

2,950

2,690

2,530

2,100

1,860

1,700

1,540

1,940

2,690

2,950

2,800

2,440

2,160

2,660

4,440

4,990

125,210

4,039

June

4,800 

3,980

3,240

3,120

3,600

3 , 620

3,440

3,220

*2,750

2,460

2,200

1,880

1,610

1,500

1,390

1,280

1,190

1,100

1,000

*958

820

718

745

904

1,350

,640

,620

,510

,270

,090

-

60,008

2,000

July

799 

593

775

830

768

7,100

12,500

11,500

9,160

6,620

4,780

4,370

5,730

6,100

4,940

4,740

4,550

4,310

3,770

3,940

4,420

4,550

3,850

3,090

2,180

1,790

1,600

1,460

1,340

1,180

1,070

124,408

4,013

Aug.

1,100 

872

1,250

1,740

1,840

1,610

1,510

1,270

1,110

*882

872

799

1,110

979

758

640

612

1,150"

2,440

2,510

2,050

2,430

2,310

1,970

1,540

1,310

1,140

1,090

990

936

893

41,723

1,346

Sept.

1,110 

1,480

1,680

2,000

1,860

1,720

1,490

1,370

1,180

1,060

960

851

788

708

650

650

718

799

778

698

665

630

605 5~57

650

650

659

650

640

631

-

28,897

963

Adjusted for change in contents of Millinocket and Squapan Lakes

Mean 

Cfsm 

In.

481 

0.297 

0.34

4,516 

2.7£ 

3.11

Calendar year 1950: 

Water year 1950-51:

8,112 

5.01 

5.78

1,299

0.802 

0.92

1,737 

1.07 

1.11

1,257 

0.776 

0.89

13,210 

8.15 

9.09

4,097 

2.53 

2.92

Observed

Max 22,600 Min 333 Mean 2,866 

Max 22,600 Min 516 Mean 3,549

1,981 

1.22 

1.36

3,965 

2.45 

2.82

1,371

0.846 

0.98

958 

0.591 

0.66

Adjusted

Mean 2,872 Cfsm 1.77 In. 24.05 

Mean 3,579 Cfsm 2.21 In. 29.98

Peak discharge (base. 15.000 cfsl.--Nov. 30 (time unknown) 23,OOO cfs (10.22 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Nov. 29 to Dec. 1, Dec. 12-15, June 9-19, Sept. 8-11, 21-23; discharge 

computed on basis of recorded range in stage and records for nearby stations. Stage-discharge relation affected by ice Dec. 22 to Apr. 7 (no gage-height record Jan. 23 to Feb. 2; discharge computed 

on basis of records for nearby stations).
20 ST. JOHN RIVER BASIN

Meduxnekeag River near Houlton, Maine

Location.--Lat 46°06'15", long. 67°52'00", on right bank 0.3 mile downstream from South 

Branch and £ miles upstream from Houlton, Aroostook County.

Drainage area.--175 sq mi.

Records available.--November 1940 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 333.9 ft above mean sea level, datum of

Average discharge.--1Q years (1941-51), 271 cfs.

Extremes. --Maximum discharge during year, 5 ,"4.0 cfs Nov. 28 (gage height, 8.45 ft); 

minimum, 17 cfs Oct. 9, 10 (gage height, 2.35 ft).

1940-51: Maximum discharge, 5,440 cfs May 5, 1947; maximum gage height, 8.57 ft 

Apr. 22, 1950; minimum, 3.6 cfs Sept. 19, 1946 (gage height, 2.09 ft).

Remarks.--Records excellent except those for periods of ice effect or no gage-height record, which are fair. Small diurnal fluctuation due to saw mills upstream from station.

Revisions (water years).--W 1031: 1944.

Rating tables, .water year 1950-51, except periods of ice effect (gage height, in 

feet, and discharge, in cubic feet per second)

118

189

Oct. 1 to Mar. 31

269

401

550

839

1,370

Apr. 1 to Sept. 30

6.0 2,320

7.0 3,400

8.4 5,170 122

196

3.8 584

4.3 885

5.0 1,440

6.0 2,430

6.9 3,400

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

Cf sm

In.

Oct.

23

23

22

21

21

26

28

23

20

20

26

33

53

58

53

49

44

44

44

58

65

62

65

65

67

70

62

78

85

94

100

1,512

48.8

0.279

0 . 32

Nov.

109

100

94

91

335

769

763

625

504

420

360

307

269

236

208

197

197

212

208

208

820

2 , 100

1,660

1,040

745

625

1, 630

4, 620

4.990

3,570

-

28,012

934

5.34

5.96

Dec.

2,230

1, 650

1,210

920

1,020

1,240

1,020

807

751

1,050

1, 190

3,750

4.580

2,400

1,440

1,030

813

681

587

*495

460

425

400

375

360

345

330

310

305

295

285

32,554

I, 050

6.00

6.92

Jan.

275

275

270

270

505

305

290

275

270

260

255

245

235

230

230

230

225

220

*210

210

210

210

210

210

205

200

198

192

190

190

190

7,290

235

1.34

1.54

Feb.

186

182

178

174

168

162

160

590

1,100

1,370

1,210

1,060

905

790

685

605

515

450

390

335

275

315

390

355

320

280

*250

235

_

_

-

13,635

487

2.78

2.90

Mar.

220

205

198

190

182

174

168

160

156

152

152

152

152

152

152

162

178

205

255

320

465

455

*430

392

346

324

303

282

286

364

469

7,801

252

1.44

1.66

Apr.

652

872

1,440

3,330

3,370

2,570

2,230

2,220

2,540

2,510

2,260

2,060

1,740

1,670

1,750

1, 830

1,620

1,300

1,060

908

801

710

686

840

*795

885

*1.160

1,020

840

814

-

46,483

1,549

8.85

9.87

May

728

618

534

476

425

391

362

338

319

291

269

273

291

269

238

213

196

180

165

150

136

132

129

136

165

157

136

126

234

595

623

9,295

300

1.71

1.97

June

487

37T

287

238

323

314

264

217

*200

196

180

170

158

150

140

132

128

120

112

108

100

92

88

85

83

75

63

58

52

50.

-

5,041

168

0.960

1.07

July

47

50

45

38

56

800

1.260

900

584

400

314

445

900

900

669

669

840

669

502

524

508

415

338

269

213

188

192

173

143

140

132

13,323

430

2.46

2.84

Aug.

129

119

97

113

106

88

75

68

70

*78

126

100

78

63

61

58

63

251

492

445

333

264

204

165

150

116

106

103

97

103

113

4,434

143

0.817

0.94

Sept.

143

140

143

256

260

204

184

188

165

136

113

100

83

73

65

63

68

65

61

58

56

54

58

73

68

75

73

86

97

86

-

3,294

110

0.629

0 .70

Calendar year 1950: Max 5,120 Min 14 Mean 359 Cfsm 2.05 In. 27.88

Water year 1950-51: Max 4,990 Min 20 Mean 473 Cfsm 2.70 In. 36.69

Peak discharge (t 

8.45 ft); Dec. 13

Discharg

Note . No gage-height rec 

nd records for nearby stations.

2,lno cfs). --Nov. 22 (3 p.m.) 2,230 cfs (5.91 ft); Nov. 28 (9 p.m.) 5,240 c 

.m.) 5, 170 cfs (8.40 ft); Apr. 4 (7 p.m.) 3,890 cfs (7.32 ft). 

nt made on this day.

1-4, June 9-24J discharge computed on basis of weather records 

tage-discharge relation affected by ice Dec. 20 to Mar. 23.
ST. CROIX RIVER BASIN 

St. Croix River at Vanceboro, Maine

21

Location. Lat 45°34'08", long. 67°25'47", on right bank at international highway bridge

 in Vanceboro, Washington County, 400 ft downstream from outlet of Spednik Lake.

Drainage area. 435 sq mi, approximately.

Records available. October 1928 to September 1951.

Gage. Water-stage recorder. Datum of gage is 367.75 ft above mean sea level, datum of T929.

Average discharge.--22 years (1929-51), 664 efs.

Extremes. Maximum discharge during year, 3,530 cfs Apr. 9 (gage height, 8.46 ft); mini-

 mum, 74 cfs Nov. 21 (gage height, 2.95 ft).

1929-51: Maximum discharge, 4,010 cfs Mar. 23, 1936 (gage height, 8.81 ft); minimum, 1.9 cfs several times during October and November 1936 (gage height, 1.91 ft).

Remarks.--Records excellent except those below 150 cfs, which are good. Flow regulated

 by Chiputneticook Lakes (combined usable capacity, about 13,200,000,000 cu ft).

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

and discharge, in cubic feet per seconc

124

160

224

7.5 

8.5

329

615

1,320

2,450

3,580

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.

Oct.

433

423

412

412

402

389

379

372

372

353

359

359

366

376

359

347

338

338

326

344

326

315

309

309

307

321

309

293

290

290

296

10,824

349

-

~

Nov.

285

279

282

266

296

329

326

329

335

341

341

338

332

335

329

329

329

341

347

335

220

78

79

80

81

80

88

104

111

114

-

7,459

249

-

"

Dec.

119

119

121

119

119

122

122

122

124

127

131

145

149

154

156

156

158

158

160

164

164

166

164

166

168

168

515

1,090

1,080

605

288

7,319

236

-

~

Jan.

288

290

293

296

E96

298

301

301

304

307

307

610

,220

,220

,250

,230

,230

,210

,220

720

347

347

660

1,210

1,220

1,210

1,210

1,190

1,180

1,170

1,160

24,075

777

-

"

Feb.

1,140

830

490

490

512

543

765

1,190

1,190

1,180

1,180

1,180

1,170

1,160

1,150

870

483

483

483

865

1,140

1,140

1,140

1,140

1,210

1,210

1,190

1,680

-

-

-

27,204

972

-

~

Mar.

*2,090

2,050

2,040

2,000

1,990

1,970

1,930

1,880

1,850

1,820

1,780

1,750

1,720

1,690

1,680

1,680

1,670

1,660

1,650

1,320

998

1,000

1,020

1,020

1,030

1,030

1,040

1,040

1,050

1,070

1,080

47,598

1,535

-

~

Apr.

1,100

725

347

359

1,170

2,820

3,460

5,510

3,510

2,510

3,480

3,450

3,420

3,400

3,380

3,380

3,360

3,340

3,290

3,260

2,750

2,420

1,080

315

323

1,030

1,780

1,810

2,210

2,210

-

70,199

2,340

-

-

May

2,180

2,170

2,140

1,900

1,550

1,260

560

680

385

385

920

,260

,270

,260

,280

,280

,290

,300

,280

,290

,280

,270

,270

,240

,230

,230

,220

650

309

309

1,020

36,668

1,183

-

-

June

1,250

1,260

1,240

800

246

243

890

675

222

222

516

,060

,250

,720

,690

,680

,660

,640

,620

,600

,590

,560

,640

.750

,710

,690

,650

,640

,610

,590

-

37,914

1,264

-

"

July

1,590

1,560

1,270

845

1 , 500

1,580

1,570

1,560

1,540

1,520

1,500

1,490

850

164

590

920

926

926

926

615

168

168

166

172

172

195

*174

176

178

180

180

24,969

805

-

~

Aug.

180

180

180

182

182

182

182

555

450

201

205

205

490

920

980

1,050

1,020

1,020

605

184

184

186

490

741

757

757

752

425

224

224

480

14,289

461

-

~

Sept.

809

803

475

164

166

615

932

920

908

902

890

1,120

,430

,480

,460

,430

,410

,390

,360

,610

,810

,760

,720

,690

,650

,640

,560

,390

,020

944

-

35,458

1,182

-

~

Calendar year 1950: Max 2,370 Min 78 Mean 624 Cfsm - In. -

Water year!950-51 : Max 3,510 Min 78 Mean 942 Cfsm - In. -

Discharge measurement made on this day.
ST. CROIX RIVER BASIN

Grand Lake Stream at Grand Lake Stream, Maine

Location.--Lat 45 0 10'25", long. 67°46'05", on left bank at Big Palls, 0.5 mile southeast 

or village of Grand Lake Stream, Washington County and 0.8 mile downstream from outlet 

of dam of Grand Lake.

Drainage area.--224 sq mi.

Records available. October 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 274.0 ft above mean sea level, datum of T929.

Average discharge. 22 years (1929-51), 340 cfs.

Extremes. Maximum discharge during year, 1,890 cfs July 25 (gage height, 5.16 ft); mini-

 mum, 48 cfs Nov. 26 (gage height, 1.30 ft).

1928-51: Maximum discharge, 2,150 cfs Aug. 5, 1937 (gage height, 5.58 ft); minimum 

daily, 5 cfs Dec. 3-6, 11, 1945.

Remarks. Records excellent. Plow regulated by Grand and other lakes (combined usable

 capacity, about 8,250,000,000 cu ft).

Revisions. W 971: Drainage area.

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

and discharge, in cubic feet per second) 

(Stage-discharge relation affected by ice Jan. 5, 22)

1.3 48 2.2 225

1.4 58 2.6 361

1.5 70 3.2 640

1.6 83 3.8 960

1.8 118 4.5 1,390

2.0 167 5.2 1,920

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

Day

1

0

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

255

248

242

242

228

219

213

210

204

198

198

198

201

198

189

184

175

175

167

175

157

154

151

154

151

157

151

139

136

136

141

5,746

185

-

-

Nov.

134

130

130

123

149

164

159

159

157

159

157

149

149

146

141

136

139

157

154

146

122

53

51

50

51

54

91

82

75

62

"

3,649

122

-

-

Dec.

101

101

99

32

103

101

99

99

105

108

112

139

123

118

118

120

120

120

*118

118

118

118

120

123

125

125

275

541

546

285

97

4,692

151

-

-

Jan.

97

97

97

99

100

101

101

101

101

101

101

103

105

105

107

110

112

112

114

114

116

118

118

125

192

690

215

510

141

144

144

5,091

164

-

-

Feb.

146

149

151

154

157

157

245

700

690

685

685

675

670

665

660

650

645

640

490

288

288

291

298

302

302

330

488

484

-

-

-

12,085

432

-

-

Mar.

484

479

479

474

474

474

625

1,210

1,180

1,170

1,160

1,150

1,130

1,120

1,110

1,100

1,090

1,090

1,080

1,070

1,060

 1,050

1,040

1,040

1,020

1,010

795

145.

245

248

248

26,150

844

-

-

Apr.

251

255

271

278

284

535

889

900

1,280

1,660

1,660

1,660

1,640

1,640

1,630

1,620

1,620

1,590

1,400

856

480

271

274

281

284

800

1,000

1,010

1,010

820

"

28,149

938

-

-

May

298

291

535

912

912

906

480

298

294

305

288

274

278

460

912

906

894

894

894

889

884

878

878

884

465

281

281

284

288

291

291

17,625

569

-

-

June

291

291

288

326

344

340

333

330

326

326

326

322

322

322

322

322

322

319

319

316

480

894

878

872

867

862

750

650

645

640

"

13,945

465

-

-

July

640

450

271

271

271

271

271

271

271

271

271

274

278

278

281

284

278

278

281

281

274

274

274

790

1,520

.860

,810

,740

,700

,660

,630

19,574

631

-

-

Aug.

1,000

705

695

700

685

945

1,150

1,350

760

219

219

219

370

1,120

1,560

1,520

1,450

1,450

1,410

1,370

1,330

1,310

1,280

1,250

1,210

1,180

1,140

1,120

1,090

1,070

1,050

31,927

1,030

-

-

Sept.

1,050

1,000

990

978

948

912

906

900

872

856

828

812

796

775

755

745

740

815

942

912

878

850

834

812

785

775

740

725

705

675

"

25,291

843

-

-

Calendar year- 1950: Max 948 Min 46 Mean 282 Cfsm - In. -

Water year- 1950-51: Max 1,860 Min 50 Mean 531 Cfsm - In. -

Discharge measurement made on this day.
ST. CROIX RIVER BASIN 

St. Croix River near Balleyvllle, Maine

Loeation.--Lat 45°15'56", long. 67°28'35", in township of Baileyville, Washington County, 

on right bank 700 ft downstream from post office at Kellyland and powerhouse of St. 

Crolx Paper Co. at Grand Falls and 8 miles upstream from village of Woodland.

Drainage area. 1,320 sq mi, approximately.

Records available. November 1919 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 148.8 ft above mean sea level, datum of

Average discharge. 31 years (1920-51), 2,126 cfs.

Extremes. Maximum discharge during year, 19,900 cfs Dec. 13 (gage height, 10.94 ft); min- 

 imum daily, 385 cfs Oct. 22.

1919-51: Maximum discharge, about 23,300 cfs May 1, 1923 (gage height, 13.90 ft); 

minimum daily, 100 cfs (estimated) July 20, 1924, when plant was closed down.

Remarks.--Records excellent except those below 500 cfs, which are good. Plow regulated 

Dy uniputneticook Lakes, Grand and other lakes (combined usable capacity, about 

25,000,000,000 cu ft).

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

per second)

Rat it

0.6

.8

1.0

1.4

1.8

ig tables, water year 1950-

Oct. 1 to

352

460

580

861

1,220

in cubic

Apr. 4

2.3 1,750

3.0 2,640

5.0 5,990

7.0 10,100

10.8 19,600

Apr. 5 to Sept. 3O

1.1 

1.3 

1.6 

2.0 

2.5

895

1,070

1,350

1,760

2,310

3.0 2,910

4.5 5,060

6.0 8,000

8.4 13,500

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

IB

19

O

1

2

3

4

5

6

7

8

9

30

31

Total

Mean

Cfsm

In.

Oct.

680

1,080

1,OOO

1,000

985

924

967

670

790

916

877

900

877

786

870

810

1,240

1,040

519

*525

556

385

890

940

816

600

600

825

440

910

1,070

25,488

822

-

-

Nov.

765

673

680

950

860

,550

,720

,720

,680

,600

1,510

545

690

815

958

958

900

845

690

1,110

1,340

2,220

2,230

2,000

2,220

1,160

7,300

14,600

16,000

16,700

-

86,989

2,900

-

-

Dec.

9,580

7,360

4,900

3,930

4,560

5,360

3,210

2,910

5,690

4,580

5,400

15,900

19 . 500

14,300

9,410

7,760

5,310

4,650

*4,230

2,980

2,570

2,350

2,350

1,490

1.150

2,040

2,390

1,810

2,270

2,440

1,320

159,700

5,152

-

-

Jan.

2,060

2,22O

2,200

2,030

2,140

2,040

2,110

1,940

1,980

2,190

2,100

1,980

2,100

2,180

1,960

2,270

2,280

2,150

1,990

2,180

2,040

2,110

2,080

2,590

4,100

4,060

4.910

4,350

3,750

3,080

2,330

77,500

2,500

-

-

Feb.

2,310

2,090

2,360

1,110

2,140

2,280

2,250

2,940

5,960

3,950

3,740

5,B5O

3,490

3,590

3,700

3,130

2,790

1,660

1,980

2,100

2,150

2,070

2,130

2,160

1,480

2,080

2,320

2,040

-

-

-

71,850

2,566

-

Mar.

2 , 720

3,340

3,590

3,350

3,760

3,620

3,200

3,890

4,OOO

3,690

3,740

3,860

3,900

3,690

4,050

3,930

4,240

4,250

4,320

4,370

4,580

*4,B40

4,340

3,980

2,960

3,950

3,980

3,620

3,210

3,260

3,240

117,470

3,789

-

-

Apr.

2,250

3,080

7,320

14,000

13,500

10,200

9,750

9,180

10,000

9,560

*9,6BO

10,000

9,920

9,930

8,960

9,180

8,860

8,670

7,660

7,620

7,580

6,480

6,720

4,570

2,760

3,980

6,560

7,530

6,390

6,190 "

238,080

7,936

-

-

May

5,750

5,480

4,240

4,350

4,460

3,480

2,990

2,980

2,590

2,820

2,760

2,550

2,460

2,780

2,590

2,700

2,730

2,770

2,740

2,020

2,610

2,490

2,500

2,480

2,520

2,670

2,720

2,780

2,650

2,640

4,060

95,340

3,075

-

-

June

6,650

3 280

2,840

3,000

2,990

2,550

2,780

2,770

2,770

1,400

2,520

2,700

2,590

2,600

2,700

2,760

2,140

2,500

2,730

2,730

2,560

2,780

2,690

2,280

2,590

2,680

2,390

2,760

2,790

2,800

~

80,320

2,677

-

-

July

2,020

2,660

2,700

930

2,49O

2,720

2,730

2,210

2,530

2,760

2,700

2,680

2,810

3,610

2,180

2,470

2,680

2,770

2,820

3,080

3,520

2,050

2,880

2,790

2,630

2,110

2,870

2,730

2,450

2,460

2,870

80,910

2,610

-

"

Aug.

2,780

2,770

2,760

2,730

1,930

2,610

2,930

2,770

2,440

2,550

2,670

2,050

2,520

2,660

2,670

2.790

2,790

2,560

1 , 660

2,400

2,660

2,670

2,670

2,470

2,660

2,100

2,330

2,590

2,520

2,510

2,640

78,860

2,544

-

"

Sept.

2,610

1,560

1,420

2,350

2,550

2,590

2,640

2,790

2,180

2,510

2,790

2,730

2,660

2,730

2,700

2,240

2,680

2,840

2,820

2,740

2,760

2,770

2,170

2,540

2,820

2,770

2,780

2,370

2,230

1,620 '

74,760

2,492

-

-

Calendar year 1950: Max 19,400 Min 385 Mean 2,333 Cfsm - In. -

Water year 1950-51: Max 19,400 Mln 385 Mean 3,253 Cfsm - In. -

Discharge measurement made on this day.
24 MACHIAS RIVER BASIN

Maehias River at Whitneyville, Maine

Location. Lat 44°43'25", long. 67°31'15", on right bank 800 ft downstream from highway

 Bridge at Whitneyville, Washington County.

Drainage area,--457 sq mi.

Records available.--October 1903 to September 1921, September 1929 to September 1951.

Cage.--Water-stage recorder. Datum of gage is 37.2 ft above mean sea level, datum of

 1929. Prior to Sept. 30, 1921, staff and chain gages on highway bridge at different 

datum.

Average discharge.--37 years (1906-21, 1929-51), 942 cfs.

Extremes.--Maximum discharge during year, 11,800 cfs Nov. 28 (gage height, 14.70 ft, from

 floodmarks), from rating curve extended above 5,200 cfs by logarithmic plotting; minimum, 17 cfs Sept. 19 (gage height, 2.28 ft).

1903-21, 1929-51: Maximum discharge, that of Nov. 28, 1950; maximum gage height, 

16.18 ft Mar. 14, 1936 (ice jam); minimum daily discharge, 3.5 cfs Oct. 12, 1939, when 

flow was held back by cofferdams during reconstruction of highway bridge upstream.

Remarks.--Records excellent except those for periods of ice effect or no gage-height recora, which are fair. Some storage in lakes above station.

Revisions (water years).--W 241: 1903-4. W 971: Drainage area.

Rating table, water year 1950-51, except periods of Ice effect (gag 

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

3.4

3.7

210

345

535

1,370

2,260

7.0

8.0

1O.O

12.0

3,120

4,010

5,970

8,250

14.6 11,600

Discharge cubic feet per 3, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

1C)

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cfsm

Oct.

97

97

95

93

91

63

59

78

125

60

138

214

218

203

178

74

182

122

93

102

102

99

61

144

90

148

157

80

100

163

142

3,668

118

0.258

0.30

Nov.

505

113

118

118

315

1,110

1,330

993

813

654

490

439

345

305

277

254

250

295

639

829

1,710

4,150

3,570

2,390

1,600

1,280

6,100

11.600

10,800

8,910

-

62,302

2,077

4.54

5.06

Dec.

6,150

4,600

3,330

2,640

2,490

2,570

2,450

2,150

2,050

3,050

3,630

5,570

7,050

6,310

4,840

3,930

3,460

*3,160

2,970

2,710

2,360

2,070

1,830

1,670

1,540

1,410

1,340

1,270

1,220

1,170

1.150

92,120

2,972

6.50

7.49

Jan.

,120

,100

,100

,O7o

,590

,530

,400

,170

,090

1,010

960

925

910

900

9OO

,580

,790

,570

,350

,170

,110

,100

,100

,110

,180

,540

,640

,880

,450

,250

,170

43,765

1,412

3.09

3.56

Feb.

1,120

1,210

1,340

1,320

1,280

1,230

1,190

2,740

2,280

2,070

1,780

1,540

1,320

1,190

*1,190

1,060

1,000

950

925

885

493

893

,260

,380

,280

,140

,060

,030

-

-

-

36,156

1,291

2.82

2.94

Mar.

1,190

909

1,140

853

815

837

853

925

1,020

993

829

893

1,050

1,110

1,570

2,530

2,150

1,760

1,500

1,440

*2,740

2,490

1,920

1,540

1,520

1,420

1.E30

1,080

1,020

1,020

1,100

41,445

1,337

2.93

3.38

Apr.

1,660

2,430

3,180

5,440

5,550

4,840

4,140

3,600

2,750

*2,890

2,900

2,510

2,170

2,450

2,620

2,580

2,360

2,160

1,970

1,880

1,650

1.420

1,420

1,940

2,080

2,610

3,550

3,600

3,380

3,030

-

84,760

2,825

6.18

6.90

Hay

2,570

2,370

2,270

2,190

2,120

2,080

2,040

1,990

1,940

1,900

1,970

2,130

2,300

2,160

1,940

1,630

1,400

1,220

1,220

1,110

1,010

770

439

829

1,200

1,310

1,090

1,010

2,030

5,020

2,530

53,788

1,735

3.80

4.38

June

,920

,520

,290

,120

,OOO

942

909

959

925

853

890

335

138

320

528

542

564

557

521

465

420

372

350

394

452

528

507

432

389

345

~

20,487

683

1.49

1.66

July

340

340

335

310

320

350

5OO

535

479

406

356

340

900

934

893

639

535

52 L

550

2,070

2.180

1,730

935

853

725

639

586

514

507

500

500

21,122

681

1.49

1.72

Aug.

290

295

290

286

259

254

246

238

730

1,560

1,120

781

601

514

432

384

350

345

372

389

367

439

623

579

465

378

340

310

300

277

254

14,068

454

0.993

1.14

Sept.

426

901

765

654

616

507

564

535

493

367

295

290

272

254

254

254

250

242

230

151

130

97

86

135

222

250

250

893

1,060

725

"

12,168

406

0.888

0.99

Calendar year 1950: Max 11,600 Min 57 Mean 1,044 Cfsm 2.28 In. 30.99

Water year 1950-51: Max 11,600 Min 59 Mean 1,331 Cfsm 2.91 In. 39.52

Peak discharge (base, 5,200 cfs).--Nov. 28 (time unknown) 11,800 cfs (14.70 ft); Jan. 26 (l p.n 

3,800 cfs (7.77 ft); Apr. 4 (9 p.m.) 5,850 cfs (9.89 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Nov. 27-30, Dec. 3, 4, 12-15, 26-28, Feb. 9-15; discharge computed on 

basis of records for nearby stations. Stage-discharge relation affected by ice Dec. 23-25, Dec. 30 

to Jan. 4, Jan. 9-11, 13-15, 22, 23, 30, 31.
MACHIAS RIVER BASIN

East Machias River near East Machias, Maine

Location. Lat 44°46'05", long. 67°24'30", on left bank just downstream from outlet of

 Hadley Lake, 3 miles upstream from East Machias, Washington County.

Drainage area.--251 sq mi.

Records available.--October 1926 to September 1951.

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

 J4.9 ft above mean sea level, datum of 1929. Prior to Oct. 1, 1950, at datura 1.00 

ft higher.

Average discharge.--24 years (1927-51), 492 cfs.

Extremes.--Maximum discharge during year, 3,660 cfs Dec. 15 (gage height, 9.05 ft); mini-

 mum, 32 cfs Oct. 10 (gage height, 1.16 ft).

1923-51: Maximum discharge observed, that of Dec. 15, 1950; minimum observed, 8.4 

cfs Nov. 8, 1947 (gage height, 0.65 ft, present datum).

Remarks.--Records good.

Revisions.--W 971: Drainage area.

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

and discharge, In cubic feet per second)

1.1

1.2 

1.4 

2.0 

2.5 

3.0

208

310 9.1

595

1,010

1,500

2,100

2,800

3,710

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

Cf sm

In.

Oct.

47

46

44

42

41

38

34

34

34

32_

41

40

44

48

47

47

46

47

49

52

*47

51

50

46

47

534~§

47

46

49

53

1,391

44.9

0.179

0.21

Nov.

52

51

49

55

81

140

194

247

276

290

296

294

287

283

267

259

253

274

315

357

5O4

814

986

1,090

1,120

1,110

1,420

1,920

2,420

2,680

-

18,587

620

2.47

2.76

Dec.

3,440

3,530

3,360

3,160

3,000

2,800

2,620

2,340

2,070

2,070

2,450

3,080

3,440

3,620

5,650

3 , 530

3,360

*3,080

2,840

2,590

2,280

2,010

1,830

1,680

1,560

1,450

1,360

1,240

1,160

1,160

1,140

76,900

2,481

9.88

11.39

Jan.

1,110

1 , 050

1,000

982

991

963

945

927

865

814

773

757

741

701 7o~9~

797

840

848

831

814

793

777

761

717

1,050

,170

,220 ~7Su

,180

,13O

1,070

28,536

921

3.67

4.23

Feb.

1,000

1,020

1,010

986

958

909

857

,070

,200

,220

,200

,170

,090

,030

*954

883

814

749

701

647

610

591

606

610

632

617

606

588

-

_

-

24,328

869

3.46

3.60

Mar,

566

548

531

491

467

423

T44

444

444

439

444

450

473

491

467

709

773

827

835

927

*i,oao

1,150

1,180

1,180

1,190

1,180

1,160

1 , 090

1,030

977

945

23,355

753

3.00

3.46

Apr.

991

1,105

1,300

1,560

1,760

1,860

1,970

2,020

2,000

*1,960

1,920

1,850

1,790

1,760

1,700

1,640

1,590

1,400

1,260

1,260

1,270

1,220

1,180

1,200

1,160

1,200

1,260

1,220

1,250

1,220

-

44,871

1,496

5.96

6.65

May

1,200

1,1 50

1,080

1 , 000

940

874

814

765

721

693

655

628

625

625

621

599

581

545

524

504

479

455

439

439

473

498

504

545

595

797

874

21,242

685

2.73

3.15

June

892

900

IBs

835

789

741

717

678

647

610

*566

524

488

450

423

423

397

372

357

328

312

296

283

274

283

261

245

236

232

222

-

14,646

488

1.94

2.16

July

222

219

212

203

208

219

219

215

212

208

201

^(JI

226

247

251

261

278

261

310

367

417

491

IBS

*455

423

377

362

333

333

319

301

9,039

292

1.16

1.34

Aug.

283

265

245

243

222

212

194

180

2S5

310

382

402

397

387

377

362

333

324

315

296

283

292

301

298

287

276

265

257

245

237

222

8,957

289

1.15

1.33

Sept.

261

296

315

333

328

338

333

333

328

322

305

292

278

269

253

253

247

241

234

222

212

203

199

204

201

197

194 2"9"(?

382

402

-

8,271

276

1.10

1.23

Calendar year 1950: Max 3,650 Mln 32 Mean 612 Cfsm 2.44 In. 33.09

Water year 1950-51: Max 3,650 Mln 32 Mean 767 Cfsm 3.06 In. 41.51

Discharge measurement made on this day. 

288890 O - 54 - 3
26 NARRAGUAGUS RIVER BASIN

Narraguagus River at Cherryfield , Maine

Location.--Lat 44 0 36'30", long. 67°56'15", on left bank at CherryfIeld, Washington 

uounty, 800 ft upstream from railroad bridge and 0.7 mile downstream from mouth of 

West Branch of Narraguagus River.

Drainage area.--232 sq mi.

Records available, February 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 55 ft (from topographic map). Prior 

!To July 1, 1948, staff gage at same site and datum.

Extremes.--Maximum discharge during year, 7,250 cfs Nov. 28 (gage height, 15.81 ft); min- 

 imum, 45 cfs Oct. 10 (gage height, 7.29 ft).

1948-51: Maximum discharge observed, that of Nov. 28, 1950; minimum, 33 cfs Sept. 

17, 1948 (gage height, 7.15 ft).

Remarks.--Records excellent except those for periods of ice effect or no gage-height recora, which are fair.

Rating tables, water year 195O-51, except periods of Ice effect (gage 

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

7.3

7.4 

7.6 

7.9

8.2 

8.5 

8.9

Oct. 1 to Nov. 28

46 9.4

57 10.4

82 11.5

128 13.0

188 14.5

260 15.8

383

586

1,120

1,910

3,300

5,180

7,230

Nov. 29 to Sept. 30

7.6 

7.9 

8.2 

8.5 

8.9

129

192

270

392

9.4

10.4

11.5

13.0

13.8

578

1,070

1,830

3,200

4,140

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.

Oct.

58

57

56

54

50

49

48

48

48

M

72

89

m

81

72

67

65

63

59

59

56

55

57

63

64

68

63

61

61

59

58

1,892

61.0

0.263

0.30

Nov.

57

57

57

58

196

676

488

343

274

248

228

209

190

178

159

151

151

159

302

323

870

2,200

1,700

1,200

770

735

1,800

7,150

5,080

3,890

-

29,899

997

4.30

4.80

Dec.

2,950

2,060

1 , 500

1,170

983

850

790

750

710

1,280

1,910

2,930

4,110

3,110

2,120

1,580

1,230

*940

830

699

625

580

550

530

505

505

500 50"5

500

500

505

38,302

1,236

5.33

6.14

Jan.

515

520

538

663

801

686

625

612

570

545

540

525

515

505 59~§

1,070

845

713

603

534

595

*590

630

726

2,540

1,790

1,360

1,000

768

731

726

23,780

767

3.31

3.82

Feb.

755

800

755

700

665

625

595

1,870

1,670

930

755

625

555

500

*445

420

390

365

355

340

330

385

655

580

525

470

435

400

-

_

-

17,895

639

2.75

2.86

Mar.

365

*350

345

340 3TO"

340

340

390

420

405

425

554

650

642

1,160

1,460

1,080

929

811

866

*1,670

1,310

1,080

892

897

835

713

616

578

578

612

21,993

709

3.06

3.53

Apr.

1,220

1,540

1,840

2,860

2,970

2 , 080

1,550

1,270

1,140

*1,110

1 , 080

1,050

1,050

1,030

1,210

1,200

1,090

1,010

940

826

759

681

633

*73T

1,090

1,030

1,36O

1,650

1,410

1,810

-

39,220

1,307

'5.63

6.28

May

924

783

694

612

554

515

476

443

425

402

386

357

340

345

350

350

345

335

330

320

310

295

280 '2~9~0"

310

310

610

700

860

1,920

1,220

16,391

529

2.28

2.63

June

960

710

645

575

525

505

490

450

385

330

300

*270

250

224

224

279

338

305

256

226

*204

185

172

234

245

245

211

194

185

168

-

10,320

344

1.48

1.65

July

168

170

153

135

TI5

211

311

317

276

229

194

179

308

484

450

370

323

279

273

1 . 050

999

736

534

408

329

262

221

194

259

290

242

10,479

338

1.46

1.68

Aug.

211

194

172

168

157

147

133

125

1BT3

676

530

392

323

267

239

224

194

209

221

206

192

348

376

299

239

206

190

179

166

151

139

7,723

249

1.07

1.23

Sept.

282

408

360

425

379

296

305

355

290

250

214

190

168

149

141

129

124

113

106

98

93

89

M

141

135

133

133

454

399

276

6,713

224

0.965

1.08

Calendar year 1950: Max 7,150 Min 46 Mean 487 Cfsm 2.10 In. 28.50

Water year 1950-51: Max 7,150 Min 46 Mean 615 Cfsm 2.65 In. 36.00

Peak discharge (base, 1 500 cfs). Nov. 28, 7,250 cfs (15.81 ft); Jan. 25 (9 a.m.) 2,620 cfs (12.42 

,59 

Apr

ft); Feb. 8 (5 p.m.] 2,590 cfs (12-39 ft); Mar. 15 (12 m.) 1,830 cfs (11.50 ft); Mar. 21 (6 a.m.) 

1,790 cfs (11.45 ft); Apr. 5 (5 a.m.) 3,140 cfs (12.94 ft).

* Discharge measurement made on this day.

Note. No gage-height record Nov. 23 to Dec. 1, Dec. 6-17, May 13 to June 11; discharge computed 

an basis of records for nearby stations. Stage-discharge relation affected by ice Dec. 21 to Jan. 

2, Jan. 7, 9-14, 22, 23, Feb. 1-7, Feb. 10 to Mar. 1O.
UNION RIVER BASIN 2 ' 

West Branch Union River at Arnherst, Maine

Location. Lat 44°50'25", long. 68°22'20", on right bank 200 ft upstream from site of 

01a tannery dam, 0.6 mile upstream from Indian Camp Brook, and 0.7 mile northwest of 

Amherst, Hancock County.

Drainage area.--I48 sq mi.

Records available.--July 1909 to September 1919, July 1929 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 165 ft (from topographic map). Prior 

to Sept. 30, 1919, staff and chain gages at highway bridge 1 mile downstream at 

different datum.

Average discharge. 32 years, 261 cfs.

Extremes. Maximum discharge during year, 2,090 cfs Nov. 27 (gage height, 7.57 ft); mini- 

 mum, 9.6 cfs Oct. 10 (gage height, 3.02 ft).

1909-19, 1929-51: Maximum discharge, 4,140 cfs Apr. 13, 1940; maximum gage height,

10.41 ft Mar. 9, 1942 (ice jam); minimum discharge, 3.6 cfs Sept. 29, 1941; minimum

gage height, 2.82 ft Sept. 14, 1949.

Remarks.--Records excellent except those for periods of ice effect, which are fair. 

Revisions (water years). W 801: 1935. W 821: 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 No Nov. 29 to Sept. 30

4.2 

4.4

114

164

222

288

4.6

5.0 

5.5 

6.2 

7.4

365

540

798

1,170

1,960

4.4

107

155

211

272

341

515

780

1,100

2,090

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 sm

In.

Oct.

13

13

12

12

11

11

11

11

11

TO

14

22

35 25

28

28

28

29

28

27

27

27

28

28

28

28

28

28

28 

29

29

690

22.3

0.151

0.17

Nov.

29

28

27

27

l2ff

207

216

216

198

181

164

151

136

121

112

107

105

110

114

119

750

920

793

685

613

645

1,830

1,960

2,070 

2,050

-

14,810

494

3.34

3.73

Dec.

1,950

1,740

1,500

1,250

1,210

1,110

926

798

980

1,220

1,110

1,740

1,780

1,710

1,630

1,470

*1,260

1,060

888

734

636

540

454

405

365

340

325

315

310 

305

500

30,341

979

6.61

7.62

Jan.

300

295

298

319

418

477

372

325

295

270

255

240

230

220

210

250

350

300

265

240

255

220

205

2T5

855

684

580

505

450 

590

555

10,581

541

2.50

2.65

Feb.

355

570

350

335

325

510

505

1,020

 774

615

525

460

405

570

540

*325

290

260

241

232

225

TTl

537

334

316

502

282

272

-

-

10,525

576

2.54

2.64

Mar.

266

245

255

211

208

199

194

2L4

214

226

225

247

279

298

380

477

477

477

472

*530

774

706

642

574

569

520

458

418

409 

422

458

12,022

388

2.62

3.02

Apr.

674

774

,220

,760

,6'80

,650

,540

,580

* ,240

,110

1,020

965

952

965

926

870

859

792

729

729

674

604 SHI

*8O4

752

965

1,010

965

913 

882

-

30,048

1,002

6.77

7.55

May

786 ¥90"

609

555

467

409

564

330

302

275

253

292

312

302

279

260

253

266

247

238

214

199

185

T9l

208

205

194

285

426 

449

436

10,464

338

2.28

2.65

June

593

545

292

256

241

211

208

191

177

158

150

*135

116

107

107

114

114

112

107

103

*91

87

85

87

91

89

85

85

78 

73

-

4,488

150

1.01

1.15

July

82

78

71

67

1C5

142

166

177

160

142

121

166

597

405

350

545

305

272

272

337

341

330

298

244

202

171

158

158

171 

177

160

6,600

213

1.44

1.66

Aug.

179

199

*205

217 2"0~5

177

152

135

199

182

182

171

163

142

150

116

112

125

125

121

125

142

158

150

125

114

105

97

89 

82 -55

4,465

144

0.975

1.12

Sept.

114

114

150

148

145

158

148

168

145

140

125

116

105

95

85

83

82

74

64

61

56

55

BT

67

64

67

66

87

87 

85

-

2,974

99.1

0.670

0.75

Calendar year 1950: Max 2,070 Min lo Mean 285 Cfsm 1.93 In. 26.14

Water year 1950-51: Max 2,070 Min 10 Mean 378 Cfsm 2.55 In. 34.67

. . e, 1,000 cfs).--Nov. 21 (8 p.m.) 1,010 cfs (5.92 ft); Nov. 27 (9 p.m.) 2,090 

cfs (7.57 ft); Dec. 9 112 m.) 1,510 cfs (6.32 ft); Dec. 12 (2 p.m.) 1,970 cfs (7.25 ft); Feb. 8 

(9 a.m.) 1,380 cfs (6.43 ft); Apr. 5 (12 m.) 1,920 cfs (7.19 ft).

* Discharge measurement made on this day.

Mote.--Stage-discharge relation affected by ice Dec. 25 to Jan. 2, Jan. 8-24, Jan. 27 to Feb. 7, 

Febm-17, Mar. 2, 5.

Peak discharge (base, 1,000
28 PENOB3COT RIVER BASIN

East Branch Penobscot River at Grindstone, Maine

Locatlon.--Lat 45°44', long. 68°35', on left bank 500 ft downstream from Bangor & 

Aroostock Railroad bridge, half a mile south of Grindstone, Penobscot County, and 

9-| miles upstream from confluence with West Branch Penobscot River.

Drainage area.--l,070 sq mi, approximately (including about 240 sq ml drained by Chamberlain Lake through Telos Canal).

Records available.--October 1902 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 294.7 ft above mean sea level, datum of 

 1929. Prior to June 30, 1929, chain gage on railroad bridge at same datum.

Average discharge.--44 years (1907-51), 1,840 cfs (unadjusted).

Extremes. Maximum discharge during year, 19,100 cfs Nov. 29 (gage height, 12.26 ft); 

minimum, 356 cfs July 5 (gage height, 4.41 ft).

1902-51: Maximum discharge, 35,100 cfs Apr. 30, 1923 (gage height, 16.5 ft, site 

then in use, present datum); minimum daily (1914-51), 77 cfs Nov. 19, 1924.

Remarks.--Records excellent except those for periods of ice effect, which are fair. 

Flow partly regulated by Chamberlain, Telos, Second and Grand Lakes and Round Pond 

(see p. 47).

Revisions.--W 501: Drainage area.

Rating tables, water year 195O-51, except periods of Ice effect (gage 

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

4.8 

5.1 

5.4 

5.8 

6.4

Oct. 1 to Apr. 6

569

814

1,120

1,620

2,550

7.2 

8.5 

9.5

10.5

12.1

4,020

7,000

9,730

12,900 

18,50O

4.4 

4.6 

4.8

5.1 

5.4

Apr. 7 to Sept. 3O

350

464

603

860

1,170

5.8 

6.4 

7.2 

8.5 

9.6

1,650

2,560

4,020

7,000

10,000

Blscharge able feet per second, water year October 1950 to September 1951

Bay

1

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

£2

23

24

25

26 

27

28

29

30

31

Total

Mean

Oct.

562 

7F7

890

880

862

852

842

833

824

805

833

919

1,270

1,000 

724

644

692

880

862

871

890

890

900

919

970

1,280 

1,230

1,120

1,080

1,060

1,080

28,251

911

Nov.

1,020 

980

960

980

2,030

3,390

2,270

1,520

1,240

1,120

1,060

939

862

796

760

733

751

1,080

1,200

1,190

3,260

5,200

3,610

2,600

2,160

2,090 

9,490

18 , 400

18,500

15,500

-

105,691

3,523

Dec.

11,800 

9,150

7,810

6,950

7,550

8,650

7,160

6,120

5,220

8,400

7,130

9,010

14,000

11,800 

9,840

8,480

6,950

5,180

4,540

4,020

3,670

3,300

2,990

2,720

2,530

2,300 

2,140

2,000

1,820

1,680

1,560

186,470

6,015

Jan.

1,450

1,350

1,290

1,230

1,290

1,330

1,300

1,210

1,140

1,100

1,050

1,020

1,000

1,18T3 

1,420

1,390

1,340

1,310

1,280

1,250

1,230

1,230

1,240

1,290

1,480

1,730 

1,725'

1,590

1,510

1,450

1,420

40,820

1,317

Feb.

1,390 

1,400

1,420

1,450

1,480

1,540

1,630

2,030

3,400

3,300

3,300

3,400

3,440

3,210

2,900

2,720

2,640

2,530

2,410

2,350

2,250

2,320

2,500

2,500

2,450

2,350 

2,240

*2,240

_

_

-

66,790

2,385

Mar.

2,280

2,300

2,300

2,280

2,270

2,220

2,200

2,170

2,030

1,970

1,970

1,960

1,940

1,920

1,900

2,020

2 , 060

2,060

1,980

1,880

1,880

1,910

1,760

1,610

1,480

*1,380 

1,560

1,360

1,430

1,520

1,660

59,060

1,905

Apr.

2,060 

2,990

4,O20

5,760

8,540

8,320

7,810

7,920

9,300

9,700

9,270

*9,470

9,730

9,950

9,730

9,610

8,840

7,620

6,690

5,830

5,270

4,830

4,980

5,470

4,450

5,000 

6,720

6,870

6,900

7,550

-

211,200

7,040

May

6,740 

6,120

5,710

5,070

4,020

2,750

2,150

1,900

1,850

1,760

1,580

1,530

1,690

2,590 

3,030

3,350

2,850

1,620

1,750

1,910

1,840

2,510

2,510

2,530

2,710

3,080 

2,990

1,780

4,020

4,160

4,470

92,570

2,986

June

3,420 

2,950

2,750

2,900

2,500

1,970

1,980

1,910

1,440

1,090

1,050

1,100

940

910 

920

851

920

761

735

683

667

627

651

870

833

920

700

651

596

574

-

38,869

1,296

July

452

411

405

ISO" 372

,130

,940

,390

,920

,260

,160

,750

,460

,960

,180

,600

,880

,690

,560

,140

,210

,610

,170

,160

,040

940 

930

744

659

815

735

46,073

1,486

Aug.

523 

574

735

860

TI3

833

770

523

588

692

*675

651

635

611 

627

627

566

611

806

675

510

510

574

440

394

383 353"

400

517

552

537

18,526

598

Sept.

770

851

779

980

W3

753

842

980

770

627

574

545

497

'555 

797

860

880

880

833

788

770

770

779

833

806

806 

770

797

806

744

-

23,412

 ".1_____- j -, -j -_. j -,~ | ~,~~~i j.,-.^! ,,- j -,- , ^.-....j ^, ,_____---I . . 780

Adjusted for change In contents In Chamberlain, Telos, Second and Grand Lakes, and Round Pond. n i in : i i : i rr n : m T^T-\ ~^r\ rrm rm 

Mean 

Cfsm

379 

0.354

0.41

4,23Z 

3.96 

4.42

Calendar year 1950: 

Water year 1950-51:

5.657 

5.29 

6.10

1,296 

1.21 

1.40

1,808 

1.69

1.76

1,304

1.22 

1.41

8,728 

8.16 

9.10

3,324

3.11 

3.58

Observed

Max 18,500 Kin 327 Mean 2,141 

Max 18,500 Mln 372 Mean 2,514

1,371 

1.28 

1.43

1,504 

1.41

1.63

571 

0.534 

0.62

556

0.520 

0.58

Adjusted

Mean 2,155 Cfsm 2.C1 In. 27.33 

Mean 2,554 Cfsm 2.39 In. 32.44

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Bee. 20 to Apr. 6.
PENOBSCOT RIVER BASIN o 

Penobscot River near Mattawamkeag, Maine

Location. Lat 45°34'00", long. 68°24'10", on left bank 1,800 ft downstream from Mattaleuhk Darn and powerhouse, 1-jj miles upstream from Mattaseunk Brook, and 45- miles upstream from Mattawamkeag, Penobscot County.

Drainage area.--3,310 sq mi, approximately (including about 240 sq mi drained by Chamberlain Lame through Telos Canal).

Records available. June 1940 to September 1951.

Gage. Water-stage recorder. Datum of gage is 191.7 ft above mean sea level, datum of T929.

Average discharge.--11 years, 5,242 cfs (unadjusted).

Extremes.---Maximum discharge during year, 32,800 cfs Nov. ^8 (gage height, 10.65 ft); 

minimum daily, 2,140 cfs July 4.

1940-51: Maximum discharge, 40,200 cfs May 21, 1945 (gage height, 11.09 ft), from 

rating curve extended above 17,000 cfs; minimum daily, 1,430 cfs Aug. 17, 1941.

Remarks.--Records good. Plow regulated by several reservoirs above station (see p. 47).

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

Tota:

Mean

Oct.

3,030

3,260

4,150

4,500

4,050

4,500

4,150

3,360

3,410

3,510

3,950

3,950

4,350

4,910

2,850

2,510

2,940

3,950

4,100

4,050

3,900

3,220

3,510

3,700

4,200

4,000

4,450

4,400

3,310

3,650

4,050

117,870

3,802

Nov.

3,950

3,750

4,100

4,000

4,910

8,310

7,450

5,930

4,910

4,050

4,350

3,310

3,560

3,560

5,260

3,260

3,260

4,000

3,460

3,700

7,770

12,500

9,500

7,820

6,630

4,600

16,400

30,700 

30,400

23,800

-

237,200

7,907

Dec.

19,300

15,000

11,800

9,650

12,000

14,200

12,000

10,300

9,890

13,600

12,200

18,200

25,400

20,700

16,400

14,200

12,000

9,360

8,030

7,560

7,660

*8,360

8,170

6,790

6,260

5,400

7,200

6,950 

7,250

7,150

5,990

348,970

11,260

Jan.

6,150

4,650

4,860

5,020

5,350

5,460

4,000

4,350

4,450

4,450

4,700

4,300

4,550

4,300

4,700

5,020

5,240

*5,180

5,130

4,910

4,650

5,460

4,750

5,080

5,300

6,200

6,630

4,860 

5,080

5,180

5,510

155,470

5,015

Feb.

5,180

5,350

5,020

4,400

4,700

5,180

4,650

5,880

8,620

8,360

7,610

7,350

7,560

7,100

6,900

6,370

6,420

5,180

5,240

5,300

5,300

5,770

5,930

6,040

5,460

5,720

6,100

6,260

-

-

168,950

6,034

Mar.

6,370

6,260

5,990

5,020

5,240

5,880

6,150

6,150

5,560

5,130

4,550

4,910

5,400

5,130

5,720

6,310

6,630

5,180

5,880

6,200

6,680

6,840

6,790

6,310

5,240

*5,240

5,880

5,560 

5,720

5,620

6,630

180,170

5,812

Apr.

5,930

8,620

12 , 300

20,000

19,700

*15,600

14,000

14,200

15,400

16,600

15,800

15 , 200

15,900

16,800

17,200

17,400

16,400

14,800

13,400

12,200

9,840

11,200

11,700

13 , 800

12,400

14,400

18,700

20,600 

20,000

19,500

-

449,590

14,990

May

23 , 000

22,400

21,400

18 , 800

16,200

13,800

14,200

13,400

10,500

6,420

4,400

5,240

5,350

7,660

7,820

7,200

7,000

5,930

5,510

5,350

5,300

5,670

7,050

8,400

8,070

8,400

7,610

6,790 

12,000

12,700

13,700

317,270

10,230

June

12,700

10,900

8,780

7,720

6,740

6,530

6,420

6,200

6,530

4,250

5,180

5,240

4,100

4,300

3,900

3,600

2,810

3,750

3,70O

3,800

3,800

3,170

4,400

4,150

4,600

4,350

3,850

4, 100 

4,150

4,250

-

157,970

5,266

July

2,900

4,000

3,310

2,140

3,130

4,000

6,840

7,400

5,510

4,400

4,350

5,350

8,560

9,550

6,100

5,300

5,770

5,830

4,960

5,880

7,000

4,860

4,910

4,700

4,500

4,300

4,550

4,800 

3,650

4,150

4,450

157,150

5,069

Aug.

4,600

4,300

4,650

5,460

4,750

3,800

*4,800

3,950

3,700

3,950

4,400

4,000

4,050

3,850

4,650

4,750

5,130

5,620

4,350

4,250

3,560

4,300

4,500

3,850

4,050

2,760

3,750

3,800 

4,050

4,050

3,700

131,380

4,238

Sept.

3,510

2,640

2,720

4,250

5,020

4,400

4,550

4,650

3,800

4,150

4,200

3,700

3,700

3,750

4,700

3,800

3,700

3,560

4,250

3,460

3,460

3,560

3,220

3,600

4,550

4,550

4,150

4,350 

4,350

3,560

-

117,860

3,929

Adjustedt

Mean 

Cf sm 

In.

1,198 

0.362 

0.42

12,7BC 

3. Bf

4.3]

Calendar year 1950: 

Water year 1950-51:

) 16,780 

5.07 

5. 84

3,557

1.07 

1.23

4,645 

1.40 

1.46

3,773 

1.14 

1.31

27,350 

8.26 

9.22

10,690 

3.23 

3.72

Observed

Max 30,700 Min 2,510 Mean 5,250 

Max 30,700 Min 2,140 Mean 6,958

3,633 

1.10 

1.23

3,827 

1.16 

1.34

1,643 

0.496 

0.57

1,831

0.553 

0.62

Adjusted

Mean 6,401 Cfsm 1.93 In. 26.23 

Mean 7,625 Cfsir 2.30 In. 31.27

* Discharge measurement made on this day.
PENOBSCOT RIVER BASIN

Mattawamkeag River near Mattawamkeag, Maine

Location. Lat 45°30'20", long. 68°18'05", on right bank at Gordon Falls, 1 mile upstream 

from Mattakeunk Stream, 4 miles upstream from Mattawamkeag, Penobscot County, and 4j 

miles upstream from mouth.

Drainage area.--1,400 sq mi, approximately.

Records available. October 1934 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 230 ft (from topographic map).

Average discharge.--17 years, 2,300 cfs.

Extremes. Maximum discharge during year, 18,600 cfs Dec. 15 (gage height, 11.25 ft); 

minimum, 171 cfs Oct. 10 (gage height, 0.51 ft).

1934-51: Maximum discharge, 29,200 cfs Mar. 23, 1936 (gage height, 15.34 ft); minimum, 84 cfs Sept. 21, 22, 1946 (gage height, 0.29 ft).

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

Rating table, water year 1950-51, except periods of ioe effect (gage 

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

0.5

.6

.7

1.0

1.4

167

211

258

416

670

943

2.5

3.5 

5.0 

7.0 

9.0 

11.2

1,420

2,290

4,290

8,180

12,900

18,500

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

Z3

24

25

26

21

28

Z9

30

31

Total

Mean

Cfsra

In.

Oct.

244

234

225

216

207

207

198

189

180

176

180

202

239

298

355

360

344

324

303

293

288

298

313

339

360

422

533

604

611

584

565

9,891

319

0.228

0.26

Nov.

539

539

533

514

900

2,380

3,520

3,860

3,730

3,350

2,920

2,520

2,190

1,930

1,720

1,560

1,470

1,440

1,480

1,440

2,730

6,620

8,530

8,620

7 , 920

6,890

7,230

9,680

13,700

17,500

-

127,955

4,265

3.05

3.40

Dec.

18,500

18,200

17,000

14,900

12,800

11,300

10,100

9,170

8,330

8,030

8,550

11,700

16,200

18,100

18,500

17,600

15,700

13,500

10,600

7,940

5,980

*4,880

4,240

3,780

3,610

3,300

3,040

2,820

2,680

2 , 550

2,400

306,000

9,871

7.05

8.13

Jan.

2,280

2,100

2,000

1,900

1,950

2,110

2,290

2,260

2,150

1,980

1,860

1,800

1.750

1,770

1,830

1,960

2,040

2,090

2,050

1,910

1 , 800

1,790

1 , 840

1,930

2 , 040

2,280

2,560

2,840

2 , 820

2,700

2,560

65,240

2,105

1.50

1.73

Feb.

2,440

2,310

2,220

2,180

2,120

2,060

1 , 910

2 , 000

2,340

2,860

4,260

4,160

4,000

3,790

3,490

3,040

2,680

2,290

2,110

2,040

2,030

2,040

2,240

2,330

2 , 400

2,420

2,370

2,260

_

-

-

72,390

2,585

1.85

1.93

Mar.

2,190

2,070

1 , 950

1,840

1,710

1,650

1,610

1,580

1,520

1,480

1 . 460

1,480

1,570

1,680

1 , 730

2,030

2,340

2,580

2,800

2,910

3,250

3,540

5 , 580

3,510

3,340

*3,110

2,900

2,680

2 , 610

2 , 720

2,930

72,350

2,334

1.67

1.92

Apr.

5,410

4,130

5,970

11,000

14,700

16,000

16,500

16,700

17,000

17,400

17,300

*17,100

16,600

16,000

15,300

14,700

14,200

13,500

12,500

1 1 , 200

9,910

8,620

7,630

7,460

7,780

8,160

9,100

9,770

9,590

9,100

-

358,330

11,940

8.53

9.52

May

8.470

7,740

6,810

5,950

5,170

4,480

3,990

3,640

3,350

3,140

2,930

2,780

2,780

2,720

2,550

2,370

2,210

2,120

2 , 020

1,900

1,770

1,660

1,530

1 , 500

1,600

1,670

1,660

1,560

1,740

2,430

3,350

97,590

3,148

2.25

2.59

June

5,640

3,420

3,200

3,000

2,830

2,600

2,220

1,960

1,840

1,680

1,510

1,360

1,250

1,150

1,070

1 , 030

990

936

888

820

738

677

617

644

718

752

731

684

617

578

-

44,150

1,472

1.05

1.17

July

572

578

565

'565 539

1,640

3,680

4,640

4,640

3,960

3,080

2,580

3,110

4,130

4,570

4,270

3,740

3,300

3,030

3,030

3,070

3,030

2,970

2 , 600

2,170

1,650

1,850

1,810

1,660

1 , 500

1,330

80,109

2,584

1.85

2.13

Aug.

1,240

1,160

1 , 070

1,050

1,040

976

*895

799

765

738

724

663

598

539

495

476

470

637

,350

,890

,860

,670

,420

,190

,030

895

772

684

611

572

533

28,812

929

0.664

0.77

Sept.

657

799

888

1,110

1,300

,300

,230

,390

,400

,220

1,060

908

792

704

624

578

539

520

439

458

4Z2

394

371

371

377

45d

520

56C

644

657

-

22,745

758

0.541

J.60

Calendar year 1950: Max 21,000 Min 176 Mean 2,963 Cfsra 2.12 In. 28.73

Water year 1950-51: Max 18,500 Min 176 Mean 3,522 Cfsm 2.52 I n - 34.15

Peak discharge (base, 10,000 cfs).--Dee. 15 (12 m.) 18,600 cfs (11.25 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Dec. 26 to Jai 

range in stage and records for nearby statioi 

Feb. 21, Mar. 6, 7, 9, 10.
PENOBSCOT RIVER BASIN 31

Piscataquis River near Dover-Foxcroft, Maine

Location Lat 45 0 10'35", long. 69°18 I 55", on left bank at Lows Bridge, 1 mile upstream 

from Black Stream and 4| miles upstream from Dover-Foxcroft, Piscataquis County.

Drainage area.--297 sq mi.

Records available.--August 1902 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 358.1 ft above mean sea level, datum of 

1929. Prior to July 20, 1930, staff gage at same site and datum.

Average discharge.--49 years (1902-51), 573 cfs.

Extremes. Maximum discharge during year, 17,400 cfs Nov. 27 (gage height, 15.16 ft); 44 

 cfs Oct. 5, 6 (gage height, 1.81 ft).

1902-51: Maximum discharge, 21,500 cfs (revised) Apr. 29, 1923 (gage height, 17.67 

ft, from graph based on gage readings), from rating curve extended above 13,000 cfs 

by logarithmic plotting; minimum, 5 cfs Aug. 6, 1905, Nov. 22, 1908.

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

as shown in the following table. They supersed those published in the water-supply 

papers indicated.

Water-Supply

Paper

381. .........

401. .........

431. .........

451.. ........

471. .........

501. .........

501. .........

521. .........

561..... .....

581. .........

601. .........

621. .........

641. .........

661. .........

681 ..........

696. .........

Water 

year

1913-14

1914-15

1916-17

1917-18

1918-19

1920-21

1923-24

1924-25

1925-26

1926-27

1928-29

1929-30

Date

Oct. 21

May 1

Oct. 31

Mar. 29

Dec. 15

Nov. 20

Oct. 20

May 3

Gage height 

(feet)

8.88

8.27

8.35

13.50

8.16

7.30

10.10

9.40

9.90

17.67

10.30

7.10

9.80

9.60

11.00

9.80

7.88

Discharge 

(cfs)

6,930

6,100

6,200

14,600

5,960

4,710

8,650

7,600

8,350

21,500

8,690

4,570

8,040

7,780

10,400

9,600

8,040

8,040

5,590

Remarks.--Records excellent except those for periods of ice effect or no gage-height reccord, which are fair. Low flow regulated by powerplants above station.

Revisions (water years).--W 279: 1902. W 1171: Drainage area. Revised figures of discharge for the water years 1903-17 fcomplete daily tables given on following pages) and 

for high-water periods in the water years 1934-35, superseding those published in WaterSupply Papers 279, 281, 301, 321, 351, 381, 401, 431, 451, 756, and 781, are given herein.

Day

(water year)

1933-34

Apr. 13. ....

14. ....

15.. ...

16. ....

17.....

18. ....

19... ..

20 .....

21. ....

Discharge

(cfs)

4,580

5,950

4, 830

3,990

5,580

6,220

5,360

e,360

e,640

Day

(water year)

1933-34

Apr. 23. ....

24. ....

25. ....

26. ....

27. ....

28. ....

29 .....

30 .....

1934-35

Month

Calendar year 1934. ......

Calendar year 1935 .......

Maximum

6,640

5,200

Discharge

(cfs)

3,740

3,530

4,960

4,330

2,990

2,360

1,860

1, K70

Minimum

C 3

23

26

Day

(water year)

1934-35

Apr. 21. ....

22 .....

23. ....

24. ....

25. ....

26.....

27. ....

28. ....

29. ....

Mean

537

494

Discharge

(cfs)

5,060

5,200

4,350

3,830

3,590

3,470

3,650

4,590

4, 650

Per 

square mile

1.81

1.56

Runoff 

in inches

24.58

22.49
PENOB3COT RIVER BASIN

Discharge, In cubic feet per econd, of Plscataquls River near Dover-Foxcroft, 

1902-17, 1950-51

Day

1

3

4

6

7

8

9

10

11

12

13

14

15

Ib

17

18

19

20

21

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

220

220

220

148

148

123

374

569

502

437

318

180

267

148

81

100

220

100

64

374

709

502

437

437

374

267

318

1,210

4,540

2,490

1,400

17,297

558

1.88

2.17

Nov .

1.110

858

782

782

638

709

502

569

437

502

374

569

1,020

782

709

638

782

709

437

569

569

5S9

437

437

437

437

318

437

437

437

17,993

eoo

2.02

2.25

Dec.

437

437

374

318

267

255

240

250

260

275

285

300

310

325

330

335

340

365

375

380

385

500

715

695

570

510

455

420

375

340

320

11,743

579

1.28

1.48

Jan.

300

285

275

260

260

255

240

230

225

220

215

210

210

200

196

184

180

170

168

154

148

146

142

142

142

138

132

130

130

128

126

5,941

192

0.64F

0.74

Feb.

126

126

126

122

122

122

122

122

122

122

126

150

174

170

168

164

154

150

142

140

132

136

138

148

170

180

192

210

_

-

4,076

146

0.492

0.51

Mar.

220

230

220

215

210

205

200

210

230

500

2,000

3,990

3,750

3,610

3 , 400

3,270

3,030

3,390

2,670

3,930

4,170

3,930

4,230

4,780

4,530

3,450

3,030

2,430

2,090

1,730

1,500

71,400

2,300

7.74

8.92

Apr.

2,150

1,960

1,860

2,100

2,490

2,150

1,460

1,730

5,030

2,910

2,790

1,960

1,680 i.eoo

1,370

1,550

1,910

1,680

1,600

1,550

1,600

1,280

1,240

1,020

1,020

709

638

709

638

638

-

49,022

1,630

5.49

6.12

May

569

502

437

374

374

318

374

318

267

318

267

220

220

220

220

220

220

220

220

220

318

569

569

437

148

148

148

123

123

64

123

8,868

286

0.963

1.11

June

148

123

100

100

100

64

64

64

180

100

100

100

,520

,480

,910

,420

,420

1,240

1,190

938

1,020

437

318

318

267

267

220

180

148

148

-

18,684

623

2.10

2.34

July

148

146

148

148

100

148

100

100

148

148

220

220

148

148

148

148

180

220

123

148

148

148

220

437

374

569

569

ISO

148

220

1,020

7,072

228

0.768

0.89

Aug.

858

267

220

220

148

148

100

100

81

148

220

318

318

374

220

180

123

123

100

123

318

437

318

220

148

100

100

100

123

51

100

6,404

207

0.697

0.80

Sept.

81

64

64

40

148

64

51

31

64

51

31

31

19

24

31

64

51

31

51

24

40

40

40

31

24

19

19

19

19

19

1,285

42.8

0.144

0.16

Calendar year 1902: Max - Mln - Mean - Cfsm - In. -

Water year 1902-3: Max 4,780 Mln 19 Mean E02 Cfsm 2.03 In. 27.49

Day

1

n

^

4

5

6

7

e

4

lu

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

19

19

19

19

40

40

40

40

40

40

40

40

40

31

24

19

19

24

ISO

148

123

123

64

81

19

31

40

40

40

40

40

1,522

49.1

0.165

0.19

Nov.

40

40

40

40

40

40

40

31

64

64

51

81

123

148

100

148

81

100

64

40

64

24

40

81

64

51

40

40

40

40

-

1,859

62.0

0.209

0.23

Dec .

40

40

24

24

40

24

40

40

40

40

31

31

40

64

100

148

64

64

59

72

570

1,190

875

640

490

425

310

260

210

178

154

6,327

204

0.687

0.79

Jan.

142

138

132

132

130

128

126

122

120

118

114

110

108

106

102

102

100

100

100

98

98

98

96

96

94

92

92

90

89

87

§5.

3,345

108

0.364

0.42

Feb.

87

85

83

79

78

If

74

72

71

67

66

64

61

60

59

56

54

52

51

50

49

49

48

47

46

44

43

42

_

-

-

1,713

61.2

0.206

0.22

Mar.

41

41

41

40

44

56

66

85

122

184

196

174

148

142

130

122

118

108

100

96

92

89

94

110

148

210

260

235

180

148

132

3,7E2

121

0.407

0.47

Apr.

118

106

98

96

100

116

148

265

625

1.230

1,250

1 . 090

990

890

835

795

780

780

810

845

940

1,020

1,190

1,910

2,310

2,550

2,550

2,550

3,370

4,250

-

34,607

1,150

3.87

4.32

May

4, 420

2,790

2,310

2,670

2 , 000

1,910

1,730

1,020

1,190

3,750

4,640

5.950

3, 610

2,550

1,550

3,030

3,990

2,790

1,910

2,100

1,550

1,370

1,460

1,190

938

437

858

782

638

709

709

66,531

2,150

7.24

8.35

June

148

123

123

123

267

709

1,400

85B

638

569

220

64

64

123

123

180

267

267

267

267

267

220

220

220

220

180

502

437

267

220

-

9,553

318

1.07

1.19

July

569

709

938

938

858

569

569

437

437

374

374

374

437

569

5E9

437

318

318

267

267

267

220

180

148

125

123

123

148

123

123

123

12,029

388

1.31

1.51

Aug.

123

148

100

81

81

81

81

81

100

100

148

148

148

148

267

220

220

220

220

220

374

437

374

267

220

220

123

100

148

100

100

5,398

174

0.586

0.68

Sept.

64

64

64

180

220

220

220

220

220

100

858

638

100

123

318

782

437

318

437

437

318

318

318

267

220

220

267

267

318

1.210

-

9,743

325

1.09

1.22
PEHOBSCOT RIVER BASIN

Discharge, in cubic feet per second, 

1902-17,

)f Piscataquls River near Dover-Poxcroft, Maine, 

1950-51--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

Total

Mean

Cf sm

Oct.

1,210

1,210

858

782

569

569

437

437

148

100

220

220

220

220

267

220

220

220

220

220

437

1,720

1,110

782

569

7C9

1,210

1,020

782

709

569

18,184

587

1.98

2.28

 11 ov .

569

569

437

437

437

318

437

437

437

437

437

437

220

437

502

858

569

437

318

220

318

374

437

318

374

318

180

220

220

148

-

11,857

395

1.33

1.48

Dec.

148

318

318

220

205

190

178

174

170

170

170

170

170

136

120

120

106

81

148

220

205

196

192

188

158

180

220

230

225

220

142

5,688

183

0.616

0.71

Jan.

64

200

230

230

220

210

174

196

290

455

400

265

196

174

148

140

138

132

126

106

112

140

142

146

142

116

112

100

81

142

148

5,455

176

0.593

0.68

Feb.

142

138

1£8

118

114

106

100

96

94

92

90

89

87

81

78

71

69

69

69

67

66

64

64

64

64

64

64

64

-

-

-

2,412

86.1

0.290

0.30

Mar.

64

63

63

63

61

61

61

61

60

60

60

60

60

59

59

58

56

58

66

92

114

122

128

130

138

142

220

435

710

875

965

5,224

168

0.566

0.65

Apr.

1,010

1,040

1,070

1,120

1,180

1,280

1,390

1,500

1,610

1,700

1,730

2,000

2,100

1,910

2,510

2,090

1,730

1,460

1,550

858

1,110

1,730

1,820

1,460

1,370

1,460

1,550

1,550

1,020

782

-

44,490

1,480

4.98

5.56

May

782

1,020

1,210

1.720

1,620

1,620

1,400

1,210

1,110

1,110

502

502

638

938

1,300

638

638

638

658

1,020

1,020

709

569

569

569

502

658

638

374

374

374

26,590

858

2.89

3.33

June

374

318

318

318

220

437

437

318

318

267

148

220

502

502

437

437

318

374

638

782

709

569

502

374

437

318

374

374

318

180

-

11,838

395

1.33

1.48

July

148

318

938

638

437

318

318

318

220

220

220

220

180

180

64

64

100

64

64

81

81

64

64

100

100

100

100

100

100

100

180

6,199

200

0.673

0.78

Aug.

148

148

148

148

148

5

64

81

81

100

100

100

19

123

123

123

100

100

100

100

100

100

100

100

100

100

40

64

64

81

81

2,989

96.4

0.325

0.37

Sept.

81

123

40

100

123

220

220

267

100

64

123

148

148

148

148

123

64

64

31

31

40

100

100

51

64

64

100

100

51

51

-

3,087

103

0.347

0.39

Calendar year 1904: Max 5,930 Win 40 Mean 498 Cfsm 1.68 In. 22.85

Water year 1904-5: Max 2,310 Min 5 Mean 394 Cfsm 1.33 In. 18.01

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

03t.

64

100

123

123

123

100

64

40

123

123

123

123

123

123

31

100

100

100

64

51

51

24

51

51

51

51

51

51

19

19

19

2,359

76.1

0.256

0.30

Nov.

64

64

64

64

31

64

64

64

123

100

64

31

64

100

64

51

100

148

220

100

100

100

81

64

51

40

123

100

100

64

-

2,467

82.2

0.277

0.31

Dec.

81

100

100

148

TTO

148

148

148

100

64

72

112

142

148

146

122

72

64

60

48

47

47

46

46

46

44

44

42

38

33

38

2,642

85.2

0.287

0.33

Jan.

51

55

54

54

54

54

52

51

50

49

46

61

61

60

60

66

81

112

180

310

250

188

180

180

220

320

345

330

265

260

260

4,359

141

0.475

0.55

Feb.

260

245

210

148

210

210

210

210

210

205

146

210

210

210

210

205

200

128

180

£30

240

240

245

250

260

240

210

220

-

_

-

5,952

213

0.717

0.75

Mar.

230

220

220

188

220

260

260

265

260

260

220

250

305

350

340

335

265

285

375

490

480

480

475

435

375

385

435

515

600

695

765

11,238

363

1.22

1.41

Apr.

795

805

845

920

1,020

1,190

1,190

1,020

1,020

860

780

638

569

569

1,020

5,440

S. 600

5,440

3,750

3,630

3,630

3,870

3,870

3,270

1,370

1,730

1,910

2,790

2,790

2,550

67,881

2,260

7.61

8.49

May

3,030

3,510

3,390

3,390

3,510

3,510

3,150

2,670

2,310

5. 410

3,870

2,200

1,730

2,200

1,910

1,820

1,730

1,640

782

782

858

858

858

437

437

569

569

1,020

1,020

1,020

782

60,972

1,970

6.63

7.64

June

638

437

709

709

709

782

2. 080

1,400

1,020

782

437

437

437

318

318

220

220

220

220

123

64

123

123

220

374

220

220

100

100

81

13,841

461

1.55

1.73

July

64

148

148

148

123

100

100

40

81

81

100

709

318

318

180

220

220

220

220

180

148

569

374

374

374

220

220

220

148

220

220

6,805

220

0.741

0.85

Aug.

220

220

180

148

123

123

100

81

64

100

100

100

123

123

100

100

100

100

267

148

148

148

180

267

220

180

437

569

374

318

267

5,728

185

0.623

0.72

Sept.

220

220

267

267

267

267

220

180

148

180

180

180

148

220

180

64

64

148

148

569

437

220

148

100

318

267

318

148

100

51

6,224

207

0.697

0.78

Calendar year 1905: Max 2,310 Min 5 Mean 317 Cfsm 1.07 In. 14.48

Water year 1905-6: Max 8,600 Min 19 Mean 522 Cfsm 1.76 In. 23.86
PENOB3COT RIVER BASIN

Discharge, in cubic feet pe second, of Piscataquis River near Dover-Foxcroft, Maine, 

1902-17, 1950-51--Continued

Day

1

2

3

4

6

7

8

9

!<-,

11

12

13

14

15

ie

17

18

19

20

21

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cf am

In.

Oct.

123

318

318

51

51

40

24

100

100

1,020

1,400

782

638

318

318

267

148

148

148

64

318

374

437

437

638

1,400

1,020

938

1,020

709

709

14,376

464

1.56

1.80

Nov.

782

858

858

858

858

709

709

569

569

437

437

502

502

502

502

437

638

709

709

709

709

638

569

502

502

638

638

638

569

569

-

18,826

627

2.11

2.35

Dec.

490

450

425

385

375

350

330

310

300

275

265

255

235

225

210

210

196

190

184

180

180

205

220

225

220

220

196

178

174

174

188

8,020

259

0.872

1.01

Jan.

290

625

560

470

425

380

370

365

340

330

330

330

325

320

320

320

315

315

310

285

275

275

265

260

260

255

240

230

220

210

196

10,011

323

1.09

1.26

Feb.

188

184

180

255

260

240

230

215

196

148

174

180

174

170

158

148

100

148

136

128

118

114

100

94

64

106

98

94

_

_

-

4,400

157

0.529

0.55

Mar.

92

89

69

118

142

148

148

150

154

158

160

160

154

146

154

265

310

320

310

285

285

275

230

310

375

385

395

385

380

400

425

7,377

238

0.801

0.92

Apr.

500

530

480

470

535

625

590

570

540

520

515

520

535

570

640

695

740

780

810

860

938

1,370

1,820

4,690

6.300

4,710

4,710

4,710

4,470

5,370

-

51,113

1,700

5.72

6.38

May

7.490

6,540

4,470

3,870

2,670

3,150

1,980

2,910

3,030

2,910

2,910

1,730

1,730

1,640

1,640

1,640

2, 000

2,100

2,310

2,100

1,550

782

709

709

709

569

709

782

1,550

1, 190

858

68,937

2,220

7.47

8.61

June

858

569

569

437

437

437

318

502

569

569

569

569

569

437

220

220

220

220

220

220

220

180

267

220

318

502

1,400

3,970

1,620

1,110

-

18,536

618

2.08

2.32

July

2,790

2,790

2,670

2,100

1,550

709

709

782

709

502

569

569

638

638

502

374

318

516

318

318

318

180

437

502

502

1,020

1,190

782

638

5b9

569

26,58O

857

2.89

3.33

Aug.

569

569

437

437

569

858

1,400

1,400

1,110

782

569

502

437

374

180

148

220

569

502

437

180

148

148

123

123

148

220

267

180

123

123

13,852

447

1.51

1.74

Sept.

123

123

267

437

1,510

1,720

1,110

709

709

638

709

709

569

569

569

569

569

569

569

569

437

374

374

374

502

502

437

437

318

858

-

17,929

598

2.01

2.24

Calendar year 1906: Max 8,600 Mln 24 Mean 614 cfsm 2.07 In. 28.08

Water year 19O6-7: Max 7,490 Min 24 Mean 712 Cfsm 2.40 In. 32.51

Day

1

2

3

4

5

t

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,190

938

782

1,190

1,190

858

782

1,020

2,310

1,550

1,550

1,190

1,110

1,020

858

1,020

1,190

1,020

709

709

709

709

709

638

638

569

374

437

2,550

3,510

1,910

34,939

1,130

3.80

4.38

Nov.

,370

,190

,910

,550

,100

,640

.250

,070

,450

,550

,820

,550

,280

,020

858

709

569

709

709

709

569

502

502

437

569

709

709

638

502

502

-

47,652

1,590

5.35

5.97

Dee.

437

502

502

502

502

502

502

267

374

2,280

6,780

3,010

1,550

1,370

1,020

938

858

709

709

709

709

709

858

858

858

812

695

590

530

502

502

31,646

1,020

3.43

3.95

Jan.

480

465

450

445

450

490

710

965

1.190

845

680

605

570

540

495

455

435

435

430

425

425

410

410

405

395

320

435

570

695

605

530

16,760

541

1.82

2.10

Feb.

490

475

465

455

45O

435

425

384

375

335

320

300

285

290

345

570

845

710

625

585

555

455

425

395

385

375

330

395

400

-

-

12,880

444

1.49

1.61

Mar.

420

420

410

410

405

385

320

385

430

430

435

435

435

410

475

520

1,020

845

695

630

605

595

570

710

1,110

1.420

1,280

1,070

938

858

858

19,929

643

2.16

2.49

Apr.

898

980

1,240

1,500

1,020

604

782

898

980

1,110

980

1,280

1,150

980

938

1,280

1,370

1,020

820

1,190

1,190

1,150

1 , 460

2,050

2,490

3,340

5,590

6,060

6,780

4,710

-

55,840

1,860

6.26

6.98

May

7,280

6,240

4,170

4,110

2,910

2,730

2,490

1,680

2,370

2,730

2,370

1,550

1,640

1,640

1,640

1,550

1,460

1,280

1,150

1,110

1,020

858

782

674

658

638

820

938

820

2,490

2,200

63,978

2,060

6.94

8.00

June

2,490

1,720

1,350

1,020

709

709

569

569

470

318

148

148

123

123

123

123

123

123

123

123

100

123

111

111

111

81

81

81

111

111

-

12,225

408

1.37

1.53

July

81

58

58

58

40

40

36

31

31

31

31

28

100

100

100

100

100

100

100

100

100

90

100

111

81

51

51

51

51

51

51

2,111

68.1

0.230

0.27

Aug.

72

81

123

100

163

405

405

405

405

374

345

267

267

163

163

163

180

180

180

148

123

64

64

64

64

58

58

51

51

51

51

5,288

171

0.576

0.66

Sept.

Ill

111

90

81

81

81

81

111

123

123

148

148

148

148

123

90

90

64

64

64

100

100

100

100

100

100

15

40

58

58

-

2,851

95.0

0.320

0.36

Calendar year 1907: Max 7,490 Mln 64 Mean 912 Cfsm 3.07 In. 41.65

Water year 1907-8: Max 7,280 Mln 15 Mean 836 cfsm 2.81 In. 38.30
PENOBSCOT RIVER BASIN

Discharge, In cubic feet pe second, of Piscataquis River 

1902-17, 1950-51 Continued

ear Dover-Foxcroft, Maine,

Day

1

2

3

4

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Cf sm

In.

Oct.

100

180

100

51

100

100

100

100

100

100

51

135

81

58

58

58

58

31

58

58

58

58

58

58

2i

58

163

292

180

135

111

2,872

92.6

0.312

0.36

Hov.

51

58

58

72

58

40

40

24

40

40

40

40

40

40

24

24

24

24

19

15

9

5

17

24

46

100

220

199"

199

-

2,027

67.6

0.228

0.25

Dec.

100

164

220

180

148

112

112

112

180

180

180

180

40

148

148

148

138

132

ei

51

128

122

120

118

110

108

106

102 

92

76

64

3,880

125

0.421

0.49

Jan.

60

59

60

60

61

245

920

745

470

345

245

200

192

188

180

174

148

148

146

140

130

126

100

49

122

122

122

122 

122

118

64

5,983

193

0.650

0.75

Feb.

116

120

118

116

114

112

112

112

112

100

74

71

71

71

69

67

64

59

56

54.

58

265

745

,280

,440

,280

,110

,010

-

-

8,976

321

1.08

1.12

Mar.

915

845

780

730

695

650

615

575

540

520

500

480

470

450

425

400

385

375

375

375

375

370

420

435

435

515

745

1,110 

1,250

1,280

1,120

19,155

618

2.08

2.40

Apr.

1,040

945

890

865

880

980

1,120

1,300

1,440

1,450

1,470

1,510

1,640

4,050

7.860

7,550

5,100

3,810

3,690

4,650

4,470

3,870

3,750

3,270

2,790

2,790

2,790

2,790 

2,610

2,050

-

83,420

2,780

9.36

10.44

May

1,600

1,460

1,860

2,730

2,790

2,610

2,610

2,610

2,430

2,610

2,610

3,570

5.750

3,270

2,910

2,790

2,200

1,910

1,910

1,500

1,070

604

437

405

405

405

405

405 

405

267

267

54,805

1,770

5.96

S.87

June

536

437

345

345

345

180

267

267

243

199

180

180

100

81

81

72

72

405

674

958

318

318

180

123

123

123

64

100 

90

90

-

7,476

249

0.838

0.94

July

90

90

90

267

267

199

148

123

100

100

40

100

100

58

58

58

58

51

58

123

123

123

123

123

64

58

58

58 

58

58

58

3,082

99.4

0.335

0.39

Aug.

22

22

22

22

22

22

22

22

22

22

22

22

22

22

1

31

72

111

90

100

100

40

81

81

90

90

90

90 

40

90

90

1,603

51.7

0.174

0.20

Sept.

Ill

111

111

111

180

163

123

123

111

111

111

40

81

64

58

58

58

64

40

58

64

64

64

64

51

31

123

2,000 

12.200

3,460

20,008

667

2.25

2.51

Calendar year 1908: Max 7,280 Mln 5 Mean 548 Cfsm 1.85 In. 25.10

Water year 1908-9: Max 12,200 Mln 5 Mean 584 Cfsm 1.97 In. 26.72

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1.900

1,460

1,160

980

980

858

267

267

180

165

163

163

374

938

938

938

405

405

470

502

502

569

569 

374

470

502

502

536

470

345

243

18,593

600

2.02

2.33

Hov.

243

243

243

782

782

502

374

437

405

405

405

243

243

180

243

243

267

267

267

267

220

318

243 

243

243

1,500

1,110

938

938

820

-

13,414

447

1.51

1.68

Dec.

820

746

674

569

569

569

638

638

595

515

465

420

395

374

470

470

374

374

374

345

315

275

235 

210

180

170

164

160

154

150

148

12,555

405

1.36

1.57

Jan.

146

140

132

132

130

130

128

128

128

128

128

126

126

122

118

120

122

150

132

140

154

265

1.460 

1,280

1,120

980

860

745

650

615

585

11,300

365

1.23

1.42

Feb.

560

540

515

490

480

475

465

450

435

430

425

400

385

375

370

350

340

335

335

330

320

310

305 

290

280

275

265

320

_

-

-

10,850

388

1.31

1.36

Mar.

555

550

530

490

465

450

430

405

395

375

370

365

470

555

495

450

395

355

330

525

346

346

346 

346

502

1,460

1,780

1,780

2,000

2,430

2,430

22,521

726

2.44

2.81

Apr.

3,150

5,570

5,210

2,910

2,750

5,270

5,270

2,910

2,550

2,050

1,780

1,730

1,460

1,600

1.110

1,110

1,280

1,280

1,320

1,150

1,150

1,550

1,820 

1,550

1,820

1,680

2,370

2,050

1,780

1,780

-

60,990

2,030

6.84

7.63

May

,400

,400

,400

,350

,260

,400

,300

938

782

745

674

674

374

318

318

293

220

220

267

374

318

244

244 

244

244

244

244

318

220 2~20

244

18,491

596

2.01

2.32

June

569

938

782

709

437

374

536

638

674

536

502

502

898

709

709

638

569

1,210

938

709

674

1.560

1,400 

1,020

536

437

437

406

374

220

-

20,641

688

2.32

2.59

July

220

180

180

220

220

267

244

148

123

100

148

112

112

112

112

112

112

90

81

72.

72

90

123

100

136

100

100

112

90

90

90

4,068

131

0.441

0.51

Aug.

51

90

123

200

318

318

220

244

148

100

100

180

267

267

200

200

200

136

123

123

81

123

123 

112

100

72

64

40

72

72

72

4,539

146

0.492

0.57

Sept.

72

72

72

40

64

112

112

123

123

100

40

64

112

112

112

81

58

51

58

58

58

58

58 

58

51

58

100

100

100

90

-

2,367

78.9

0.266

0.30

Calendar year 1909: Max 12,200 Mln 

Water year 1909-10: Max 3,570 Mln

682

548

Cfsm 2.30 

Cfsm 1.85

31.20

25.09
PENOBSCOT RIVER BASIN

Discharge, In cubic feet per second, of Piscataquis River near Dover-Foxcroft, Maine, 

1902-17, 1950-51 Continued

Day

1

2

T

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

24

25

26

2 7

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

64

51

51

46

46

46

46

40

40

46

46

46

46

46

40

24

36

36

46

46

46

46

24

46

46

28

24

31

31

36

40

1,286

41.5

0.140

0.16

Nov .

40

31

31

31

31

19 31

51

51

51

51

31

24

46

51

51

51

51

51

28

36

31

31

31

40

40

40

40

40

40

-

1,171

39.0

0.131

0.15

Dee .

46

46

51

51

51

51

51

51

46

36

31

31

31

36

28

22

18

16

TT

17

19

19

19

31

72

638

406

305

280

260

180

2,956

95.4

0.321

0.37

Jan.

116

81

106

210

200

174

160

150

142

138

128

122

118

116

100

112

110

106

102

100

100

92

100

102

100

100

100

96

81

98

96

3,656

118

0.397

0.46

Feb.

96

94

94

94

83

96

94

94

94

92

87

81

96

100

98

96

94

87

64

89

87

87

87

87

85

67

61

64

_

-

-

2,448

87.4

0.294

0.31

Mar.

85

83

81

81

74

85

83

81

81

78

69

59

71

89

85

83

81

56

26

54

72

69

67

64

61

46

64

122

275

575

665

3,565

115

0.387

0.45

Apr.

630

555

450

355

300

260

250

375

495

555

590

615

625

630

645

675

700

760

810

880

965

1,100

1,240

1,420

1,500

1,500

3,270

3,510

5,810

3,810

-

33,280

1,110

3.74

4.17

May

,510

,330

,850

,200

,730

,550

,550

,500

,240

,110

,110

,070

782

709

405

405

318

318

292

243

220

220

180

135

135

123

123

51

51

51

51

27,562

889

2.99

3.45

June

123

470

405

292

199

163

64

64

58

46_

46

46

111

148

470

318

243

243

199

123

123

111

111

111

243

243

243

243

243

243

-

5,745

192

0.646

0.72

July

123

19

19

19

28

36

36

36

36

36

36

28

28

28

28

28

19

19

19

19

19

19

19

64

51

36

40

90

111

163

518

1,570

50.6

0.170

0.20

Aug.

199

100

100

72

58

51

46

46

46

51

51

51

46

46

51

51

36

31

31

31

40

40

58

58

58

36

19

90

90

90

90

1,863

60.1

0.202

0.23

Sept.

58

64

64

58

58

58

58

58

58

40

51

51

51

51

51

51

64

72

72

81

81

64

51

40

36.

36

64

81

58

58

-

1,738

57.9

0.195

0.22

Calendar year 1910: Max 3,570 Mln 16 Mean 442 Cfsm 1.49 In. 20.19

Water year 1910-11: Max 3,810 Mln 16 Mean 258 Cfsm 0.801 In. 10.89

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

51

58

58

111

100

100

90

58

58

58

58

58

72

72

51

58

58

58

64

135

267

267

536

405

318

100

100

111

111

111

111

3,863

125

0.421

0.49

Nov .

220

163

163

135

58_

135

502

858

709

604

604

267

858

938

604

604

858

569

502

536

569

502

470

470

470

470

470

470

650

765

-

15,193

506

1.70

1.90

Dec.

550

480

445

410

385

370

350

340

335

550

370

730

1,910

2,610

2,200

1,600

938

938

938

820

746

858

,420

,960

,680

,320

,020

980

940

860

795

29,628

956

3.22

3.71

Jan/.

730

680

640

605

590

560

540

590

640

615

595

560

435

395

465

455

435

405

395

380

305

395

370

355

350

345

346

320

265

250 255"

14,265

460

1.55

1.79

Feb.

320

340

335 3'05

355

405

375

355

355

355

345

335

330

225

158

140

126

98

100

128

158

150

146

140

130

126

122

120

100

_

-

6,677

230

0.774

0,84

Mar.

89

96

108

110

110

108

102

100

94

87.

89

98

122

320

710

1,250

1.600

1,270

990

865

790

745

730

730

780

880

790

730

835

1,010

1,110

17,448

563

1.90

2.19

Apr.

1,140

1,090

1,040

1,030

1,040

1,030

938

1,910

1,680

1,600

1,820

1.820

1,820

1,780

1,860

3,090

4,110

4,350

3,990

3,330

3,030

3,520

7,040

5,310

3,690

3,450

3,570

2,670

2,490

2,200

-

77,238

2,570

8.65

9.65

Calendar year 1911: Max 3,810 Min 19 Mean 356

May

,100

,100

,000

,640

,460

,680

,600

,600

,550

,240

,020

,020

,370

,860

,860

,820

,820

,820

,640

,550

,320

,320

,320

,550

,820

,820

,500

,110

,020

,600

,550

52,460

1,690

5.69

6.56

June

5,590

2,510

1,910

1,550

1,460

1,570

1,240

1,240

858

858

782

709

556

502

405

318

318

318

318

518

267

267

180

163

163

180

180

180

163

148

22,601

753

2.54

2.85

July

148

155

135

111

111

64

64

64

64

81

81

81

100

100

100

64

64

100

165

111

51

180

220

220

220

220

180

111

111

148

199

5,801

125

0.414

0.48

Cfsm 1.20 In. 16

Aug.

574

782

709

556

470

405

292

220

180

135

180

858

1,110

782

569

502

374

180

245

245

245

245

243

243

180

245

267

180

180

100

100

11,366

567

1.24

1.43

Sept.

100

100

100

100

100

100

100

90

90

90

90

81

81

81

81

81

58

58

58

199

502

405

374

245

220

148

111

81

72

135

4,129

138

0.465

0.52

.31

Water year 1911-12: Max 7,040 Min 51 Mean 707 Cfsm 2.38 In. 32.39
PENOBSCOT RIVER BASIN 37

Discharge, in cubic feet pe second, of Piscataquis River near Dover-Foxcroft, Maine 

1902-17, 1950-51--Continued

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

61

Total

Mean

Cf sm

In.

Oct.

199

267

267

267

199

199

180

180

123

100

100

111

123

135

148

135

111

100

100

100

100

111

163

617

4,590

5.660

3,950

2,450

1,420

1,190

1,190

24,585

793

2.67

3.08

Nov.

1,020

1,370

1,190

898

782

709

922

5.050

3,800

2,200

1,640

1,550

1,500

1,240

1,110

1,020

782

709

569

569

502

502

536

536

536

536

536

536

536

536

-

33,922

1,130

3.80

4.24

Dec.

502

638

638

638

638

674

782

674

709

709

638

638

638

638

345

318

345

345

437

569

536

569

536

437

374

292

292

292

243

220

220

15,524

501

1.69

1.95

Jan.

220

374

374

536

536

536

536

536

520

510

510

500

495

490

475

465

455

445

520

690

615

570

455

380

345

335

335

340

325

260

210

13,893

448

1.51

1.74

Feb.

200

195

195

230

280

270

270

245

£00

250

235

230

225

210

176

158

205

196

176

150

140

154

184

176

154

120

96

89.

_

-

5,409

193

0.650

0.68

Mar.

89

87

81

79

81

79

78

79

78

1A.

76

85

94

114

174

375

850

795

760

745

930

1,530

2,000

2,970

4,180

5.800

5,450

2,670

1,910

1,550

2,360

36,223

1,170

3.94

4.54

Apr.

6,400

3,490

2,040

1,640

1,500

1,370

1,280

1,150

1,150

1,150

1,020

1,640

1,640

1,910

2,490

2,790

2,550

2,550

2,730

3,210

1,820

1,460

2,370

2,670

2,670

2,850

2,000

1,780

1,500

1,500

-

64,320

2,140

7.20

8.03

May

,560

,350

,350

.670

,260

1,260

938

502

502

502

502

437

292

244

220

220

148

148

180

180

136

374

604

709

569

536

406

437

536

536

536

18,844

608

2.05

2.36

June

536

569

569

569

374

318

267

64

112

112

136

164

164

164

164

164

164

164

180

148

112

81

81

72

64

58

58

46

46

46

-

5,766

192

0.646

0.72

July

58

58

58

58

58

51

81

112

112

123

164

164

244

244

244

244

267

267

292

518

244

244

244

220

220

200

180

136

100

64

58

5,127

165

0.556

0.64

Aug.

58

58

58

72

112

112

72

51

51

51

64

123

112

100

90

90

136

136

136

136

100

100

72

72

112

244

318

267

164

100

81

3,448

111

0.374

0.43

Sept.

81

81

81

81

100

136

112

100

100

90

90

90

81

100

100

64

46

46

46

46

46

100

1.460

1,110

820

470

136

136

100

100

-

6,149

205

0.690

0.77

Calendar year 1912: Max 7,040 Win 51 Mean 778 Cfsm 2.62 In. 35.55

Water year 1912-13: Max 6,400 Win 45 Mean 639 Cfsm 2.15 In. 29.18

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

123

136

220

267

267

267

267

200

200

164

112

72

100

112

112

318

406

406

406

2,210

5 . 840

2,740

1,500

1,060

3,030

3,030

3,030

2,200

2,050

1,680

1,280

33,805

1,090

3.67

4.23

Nov.

898

782

746

746

674

604

569

604

1,210

4,240

2,780

2,080

1,620

1,460

1,210

1,020

980

938

898

1,110

1,160

1,110

938

898

898

638

502

437

437

574

32,561

1,080

3.64

4.06

Dee.

374

292

292

374

374

318

180

1.550

1,070

980

858

709

569

536

536

470

536

569

638

638

406

318

112

90

148

200

200

502

536

536

569

15,280

493

1.66

1.91

Jan.

355

340

335

310

220

164

148

146

142

140

180

260

350

345

335

330

320

146

260

305

290

285

275

260

178

290

405

555

520

465

395

9,049

292

0.983

1.13

Feb.

355

315

210

122

114

108

122

205

192

184

178

170

150

142

120

100

89

90

126

146

148

148

146

146

136

120

102

79

-

_

-

4,263

152

0.512

0.53

Mar.

44

64

148

940

860

765

650

570

500

435

375

355

330

305

235

178

154

178

220

260

230

210

184

170

154

146

140

138

136

138

140

9,352

302

1.02

1.18

Apr.

154

TTe

210

250

260

260

285

345

450

560

640

715

765

810

875

970

1,020

1,710

3,130

5,140

6.500

4,540

4,110

3,510

2,310

2,370

2,550

3,030

4,230

3,450

-

55,127

1,840

6.20

6.92

May

3,150

3,210

3,210

3,450

3,690

4,530

3,110

3,750

4,960

6.250

4,330

2,790

2,200

1,960

1,730

1,600

1,370

1,280

1,280

1,190

1,150

1,150

820

569

569

437

406

318

220

180

180

65,019

2,130

7.17

8.27

June

180

180

180

244

470

406

180

180

180

180

136

100

100

81

72

64

112

180

180

200

81

72

72

72

64

64

58

64

123

148

-

4,423

147

0.495

0.55

July

148

90

81

64

51

72

123

148

123

112

112

81

72

58

58

64

100

81

90

90

100

100

100

100

100

100

100

100

72

58

51

2,799

90.3

0.304

0.35

Aug.

31

19

36

51

64.

51

51

40

19

28

28

51

51

51

51

51

40

36

31

31

36

51

51

51

31

31

31

31

24

24

40

1,212

39.1

0.132

0.15

Sept.

36

36

36

36

46

36

36

40

40

40

40

40

51

81

81

46

31

31

31

19.

36

36

36

19

19

28

28

24

24

24

-

1,107

36.9

0.124

0.14

Calendar year 1913: Max 6,400 Mln 46 Mean 660 Cfsm 2.22 In. 30.11

Water year 1913-14: Max 6,300 Min 19 Mean 644 Cfsm 2.17 In. 29.42
38 PENOBSCOT RIVER BASIN

Discharge, In cubic feet per second, of Piscataquis River near Dover-Fox 

1902-17, 1950-51--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

Total

Mean

Cfsm

In.

Oct.

19

19

19

19

19

15

19

22

19

19

24

24

22

22

22

22

28

22

40

81

90

123

90

90

58

90

123

72

58

51

51

1,392

44.9

0.151

0.17

Nov.

51

51

58

58

36

24

24

51

40

19

19

19

19

19

19

100

638

437

292

180

64

123

51

51

51

51

51

22

17

51

-

2,686

69.5

0.301

0.34

Dec.

90

90

90

318

244

168

120

98

79

64

52

47

46

51

64

78

64

54

49

48

47

49

64

79

51

48

43

41

39

38

39

2,452

79.1

0.266

0.31

Jan.

81

112

108

98

110

158

215

174

158

146

136

130

128

122

118

116

122

220

350

445

625

510

350

220

168

164

164

158

142

120

98

5,966

192

0.646

0.74

Feb.

78

67

64

61

58

56

58

56

52

51

51

51

49

48

81

148

320

385

355

275

205

174

148

132

210

5,590

3,140

2,860

-

_

-

12,623

451

1.52

1.58

Mar.

2,450

2,180

1,910

1,680

1,510

1,350

1,190

1,080

980

915

850

755

660

585

500

435

395

350

315

265

270

325

340

350

365

710

645

520

435

405

375

25,095

810

2.73

3.15

Apr.

340

325

310

280

315

335

395

515

710

1,060

1,640

3,750

5.100

2,850

1,960

1,910

2,260

2,610

2,610

2,610

2,670

2,490

2,000

1,500

1,600

1,860

1,960

1,550

1,020

2,050

-

50,585

1,690

5.69

6.35

May

5.560

4,710

3,210

2,670

2, 150

1,550

1,460

1,280

1, 190

1, 150

938

746

709

536

502

502

470

470

470

375

374

374

318

346

346

346

346

346

346

546

220

34,356

1,110

3.74

4.31

June

267

90

90

64

51.

64

58

58

58

58

58

58

51

58

58

74

156

156

100

58

58

58

58

374

374

374

318

244

81

81

-

3,665

122

0.411

0.46

July

100

180

180

180

267

267

220

220

2.970

2,510

1,420

980

709

457

374

536

536

569

569

536

470

267

164

200

164

164

136

136

164

164

164

15,755

508

1.71

1.97

Aug.

148

220

220

220

220

267

267

658

658

746

746

674

457

437

709

1,510

1,110

782

569

502

574

574

604

2.220

1,720

1,550

1,110

858

709

658

556

21,555

695

2.54

2.70

Sept.

406

574

374

346

518

267

267

267

518

318

180

180

180

148

148

148

318

292

292

518

267

1,500

1,110

746

457

502

569

569

406

292

-

11,657

589

1.51

1.46

Calendar year 1914: Max 6,300 Min 15 Mean 438 Cfsm 1.47 In. 20.04

Water year 1914-15: Max 5,560 Min 15 Mean 514 Cfsm 1.73 In. 23.54

Day

1

2

3

4

5

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.

Oct.

180

148

180

220

220

200

244

374

220

318

318

292

200

148

148

123

123

148

148

148

244

244

148

180

180

156

136

148

164

346

457

6,463

208

0.700

0.81

Mov.

437

502

406

267

220

220

267

346

518

244

200

148

123

125

136

164

220

374

244

1,020

1.780

1,560

980

782

437

437

437

437

437

709

13,975

466

1.57

1.75

Dec.

502

427

457

406

406

406

406

406

405

450

475

500

265

160

200

174

164

192

260

275

240

210

190

190

220

435

1,980

1,650

1,270

955

710

14,976

483

1.63

1.88

Jan.

570

380

285

215

215

265

320

320

300

265

255

250

245

240

230

220

215

210

200

192

210

270

320

325

320

245

215

196

180

164

148

7,985

258

0.869

1.00

Feb.

136

126

116

112

112

118

130

150

220

146

152

122

112

106

100

92

89

85

85

79

78

74

74

74

74

174

455

1,090

1,000

_

-

5,459

188

0.655

0.68

Mar.

860

660

530

430

365

340

330

325

315

290

265

250

200

178

158

150

142

132

130

128

122

122

122

126

130

142

154

176

210

250

280

8,012

258

0.869

1.00

Apr.

330

370

405

445

510

660

690

710

740

782

938

1,280

1,420

1,640

1,640

1,780

2,610

5,870

4,110

5,150

2,970

2,610

5,030

3,530

2,790

2,260

2,050

2,150

2,000

1,780

-

53,050

1,770

5.96

6.65

May

1,640

1,640

1,060

1,060

1,150

1,110

858

938

958

709

536

437

406

518

518

518

2,140

5.660

5,760

2,150

1,420

1,060

820

1,110

1,190

820

746

502

709

958

1,420

37,881

1,220

4.11

4.74

June

1,620

1,020

674

638

709

980

1,020

782

674

1,070

1,400

1,900

1,960

1,400

1,070

782

980

1,620

1,620

1,510

1,210

980

782

782

638

638

709

674

709

674

-

31,225

1,040

3.50

3.90

July

569

569

569

938

782

709

709

1.020

574

437

502

638

782

374

180

180

457

437

406

318

318

406

437

604

470

569

782

638

470

374

546

16,344

527

1.77

2.04

Aug.

518

318

244

220

148

81

81

156

200

502

574

518

518

292

267

148

148

148

123

81

244

244

244

180

148

90

81

148

148

148

164

6,304

205

0.683

0.79

Sept.

148

148

123

148

148

200

267

267

220

180

180

123

112

112

100

180

220

136

81

81

81

81

72

81

100

112

136

123

123

180

-

4,263

142

0.478

0.53

Calendar year 1915 : Max 5,560 Min 48 Mean 594 Cfsm 2.00 In. 27.16

Water year 1915-16 : Max 5,660 Min 72 Mean 563 Cfsm 1.90 In. 25.77
PENOBSCOT RIVER BASIN 39

Discharge, in cubic feet per second, of Piscataquis River near Dover-Foxcroft, Mair 

1902-17, 1950-51--Continued

Day

1

o

3

4

f

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23 

24

26

27

28

29

30

31

Total

Mean

Cf sm

Oct.

292

292

148

112

112

112

112

112

136

112

112

112

112

180

318

220 

136

112

100

709

1,110

898

569 

502

406

406

318

346

267

100

100

8,673

280

0.942

1.09

Nov.

100

244

148

148

123

112

112

220

318

318

148

64

112

112

180

136 

100

100

100

136

180

244

148 

244

1,160

1, 110

437

374

374

782

-

8,084

269

0.906

1.01

Dec.

6,820

3,100

1,720

1,400

1,110

1,110

1,210

1,110

782

782

782

674

604

604

604

638

604

569

569

569

437

569

1,020 

1,620

1,510

1,160

638

502

502

502

638

34,459

1,110

3.74

4.31

Jan.

502

374

406

502

267

267

200

100

220

220

220

292

374

292

858

1.400 

1,210

898

674

502

267

437

374 

374

318

318

244

100

220

220

220

12,870

415

1.40

1.61

Feb.

550

520

490

465

450

430

420

370

320

280

235

220

330

315

305

285

280

240

235

235

225

210

210 

200

196

188

180

168

_

_

-

8,552

305

1.03

1.07

Calendar year 1916: Max 6,820 Min 64

Mar.

140

164

154

140

122

102

89

81

78

74.

83

94

108

120

130

142 

148

154

160

164

168

174

188

260

425

790

,180

,280

,310

,320

,550

10,892

351

1.18

1.36

Apr.

1.400

1,430

1,550

1,640

1,710

1,860

4,410

4,710

3,090

2,210

1,910

1,730

1,730

1,730

1,730

1,730 

1,550

2,100

2,100

2,000

3,270

3,750

4,970 

4,470

3,390

2,790

2,670

1,910

1,910

2,100

-

73,550

2,450

8.25

9.20

May

2,640

2,490

2,350

2,220

1,840

1,620

1,620

1,840

1,840

1,210

1,210

1,300

1,110

898

782

782 

782

782

709

638

709

858

980 

1,960

1,400

1,160

746

638

536

938

980

39,568

1,280

4.21

4.97

June

709

502

437

502

502

406

346

346

318

318

2,040

5,230

3,810

1,730

1,.910

2,200 

3,580

12.400

6,230

3, 130

2,100

1,730

1,370 

1, 190

1, 150

858

536

502

569

820

-

57,471

1,920

6.46

7.21

July

638

638

604

569

536

470

374

220

244

220

164

200

267

318

374

292 

220

220

220

180

180

220

180 

180

180

180

81

81

64

1,450

5,840

15,604

503

1.69

1.95

Aug.

2.780

1,840

2,080

1,400

1,110

782

638

638

604

898

1,840

1,210

1,020

709

709

638 

604

674

638

638

638

604

604 

858

1,620

1,070

638

638

709

746

604

30,179

974

3.28

3.78

Sept.

604

374

406

500

470

406

318

220

180

244

180

180

148

123

51

31 

46

81

90

112

112

100

81 

164

244

164

148

136

112

90

~

6,115

204

0.687

0.77

Mean 606 Cfsm 2.04 In. 27.74

Water year 1916-17: Max 12,400 Min 31 Mean 838 Cfsm 2.82 In. 38.33

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

55

55

55

50

45.

45

45

45

45

46

54

96

160

300

240

196

170

150

140

132

150

150

136

144

170

230

320

245

210

198

195

4,226

136

0.458

0.53

Nov.

180

168

159

165

980

1,390

807

611

509

450

396

350

520

290

264

254

279

520

294

286

1,710

2,140

1,230

920

746

2,200

15.200

9,510

6,280

5,010

-

55,418

1,781

6.00

6.69

Dec.

5,280

2,520

1,750

1,420

5,570

5,250

2,000

1,550

5,410

4,100

2,680

5,920

5,780

2,460

1,760

1,350

1,080

912

746

629

553

482

450

585

335

295

260

235

*205

182

162

49,251

1,589

5.35

6.17

Jan.

152

150

150

166

182

178

168

166

160

152

152

148

142

150

182

*235

250

215

210

205

215

270

290

285

655

935

752

575

450

*565

585

8,650

279

0.959

1.08

Feb.

575

515

280

245

245

225

215

1,860

2,500

1,670

1,420

1,280

1,080

*870

730

610

540

470

440

420

420

455

570

570

504

455

430

*596

^

-

-

19,390

695

2.35

2.43

Mar.

340

520

525

501

501

285

286

290

285

270

254

282

333

363

476

905

950

842

758

765

1,240

1,120

856

700

617

550

500

*470

526

752

1,120

17,382

561

1.89

2.18

Apr.

2,460

3,060

5,640

11.900

*6,540

4,190

5,840

5,670

4,550

4,400

3,940

3,310

2,940

3,030

3,090

2,970

2,410

1,970

1,700

1,670

1,480

1,280

1,930

2,530

1,600

2,730

2,650

1,840

1,520

1,670

-

96,290

3,210

10.81

12.06

May

1,550

1,090

905

739

654

587

536

509

465

415

372

591

425

377

333

501

316

450

401

546

305

333

410

492

593

492

396

615

1,280

905

674

17,457

562

1.89

2.18

June

520

415

558

515

294

261

256

216

196

180

155

145

131

123

121

125

129

154

126

108

96

91

82

98

121

126

105

96

87

82

-

5,266

176

0.593

0.66

July

82

87

87

82

108

572

577

282

216

174

140

255

470

305

219

182

215

180

170

295

245

182

160

134

112

95

89

80

78

78

*71

5,601

181

0 . 609

0.70

Aug.

78

76

70

96

98

76

64

55

55

56

55

55

48

48

47

44

42

50

56

58

56

58

72

64

55

52

66

170

150

*150

91

2,189

70.6

0.258

0.27

Calendar year 1950: Max 15,200 Min 45 Mean 733 Cfsm 2.47 In. 33.49

Sept.

178

220

182

255

192

146

192

290

200

150

118

100

89

78

78

148

155

121

98

82

76

74

72

72

76

96

103

*110

131

105

-

5,965

152

0.444

0.50

Water year 1950-51: Max 15,200 Min 42 Mean 776 Cfsm 2.61 In. 35.45

Peak discharge (base, 4,000 cfs). --Nov. 27 (l P.m.) 17.4OO cfs (15.16 ft); Dec. 5 (6:30 p.m.)

4,750 cfs (7.36 ft); Dec. 9 (10 p.m.) 5.290 cfs (7.79 ft); Dec. 12 (8 p.m.) 4,570 cfs (7.21 ft);

Apr. 4 (6:30 a.m.) 13,700 cfs (13.19 ft).

* Discharge measurement male on this day.

Note. --No gage-height record Oct. 10-30; discharge computed on basis of records for nearby stations. Stage-discharge relation affected by ice Dec. 24 to Jan. 24, Jan. 29 to Feb. 20, Mar. 1-5,

5, 9, 10.
40 PENOB3COT RIVER BASIN

Sebec River at Sebec , Maine

Location.--Lat 45"16'10", long. 69"06'45", on right bank at Sebec, Plscataquis County, 

1,UUU ft downstream from highway bridge and dam at outlet of Sebec Lake.

Drainage area. 327 sq mi.

Records available.--October 1924 to September 1951.

Gage. Water-stage recorder. Datum of gage is 296.3 ft above mean sea level, datum of

Average discharge. 26 years (1925-51), 601 cfs (unadjusted).

Extremes. Maximum discharge during year, 6,210 cfs Nov. 29 (gage height, 10.19 ft); min-

 imum, 10 cfs Oct. 14, 15, 16, 17 (gage height, 1.23 ft).

1924-51: Maximum discharge, 11,400 cfs Mar. 20, 1936 (gage height, 14.46 ft), from 

rating curve extended above 6,000 cfs on basis of velocity-area studies; minimum, 

about 2 cfs Oct. 14-17, 1930 (gage height, 0.87 ft), when gates in dam were closed.

Remarks. Records excellent except those for periods of no gage-height record and those 

delow 60 cfs, which are fair. Plow partly regulated by Sebec Lake and other reservoirs above station.

Revisions (water years). W 1171: 1936(M). W 1171: Drainage area.

Rating table, water y 

feet, and discharge

1.2

1.3

1.4

1.5

1.6

1.7

1950-51 (gage height, In 

n cubic feet per second)

1.9

2.0 

2.2 

2.4 

2.6

222

300

2.8 

3.0 

3.6 

5.0 

7.0 

10.0

388

484

841

1,880

3,490

6,050

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

Day

1

2

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Oct.

108

225

370

3SF

356

348

334

330

192

78

69

36

11

11

10

10

22

48

53

52

50

50

50

50

50

50

50

50

50

50

50

3,579

115

Nov.

50

ST?

50

51

62

108

230

313

339

192

62

66

69

70

72

76

99

122

129

215

397

584

697

735

703

920

3,690

5,670

6,030

5,820

-

27,671

922

Dec .

5,160

4,310

3,590

3,320

2,940

3,090

2,850

2,530

2,580

3,070

3,100

3,320

*3,550

3,390

3,060

2,630

2,250

1,940

1,710

1,450

1,250

1,110

1,020

942

915

815

780

560

169 TS3~

204

67,788

2,187

Jan.

222 2TS"

260

284

300

313

326

348

348

343

348

361

366

356

366

379

379

370

370

366

370

370

361

379

440

479

520 5T5"

504

489

469

11,546

372

Feb.

479

494

464

455

435

416

412 S24~

895

1,060

1,170

1,280

1,360

*1,400

1,570

1,700

1,690

1,670

1,630

1,580

1,520

1,440

1,360

1,280

1,190

990

740

1,250

_

_

-

30,554

1,091

Mar.

1,220

1,160

1,110

1,060

1,020

995

940

875

840

850

840

840

850

835

840

850

840

855

850

840

840

850

840

850

835

835

850

*850

834

54T

868

27,803

897

Apr.

1,010

1,210

1,860

3,890

*4,880

4,710

4,340

4,090

3,980

3,880

3,740

3,540

3,290

3,140

3,040

2,940

2,770

2,550

1,400

848

915

948

1,290

1,700

1,670

2,180

2,590

2,560

2,450

2,330

-

79,741

2,658

May

2,130

1,920

1,720

1,540

1,350

1,260

965

470

343

343

280

197

200

197

193

193

200

215

237

249

268

292

304

339

348

366

388

1,050

1,780

1,790

1,570

22,697

732

June

1,360

1,200

1,070

968

485

256

268

264

264

268

260

256

252

249

256

264

264

285

322

313

296

276

268

264

260

252

210

179

166

155

-

11,450

382

July

162

166

166

155

IFF

215

237

245

241

241

245

322

625

722 575"

653

380

215

230

425

489

460

290

211

211

211

218

230

230

233

*230

9,502

307

Aug.

245

241

233

260

21T

233

230

222

226

222

218

211

208

204

200

197

193

190

193

190

186

186

186

179 TS3"

183

183

186

183

186

186

6,384

206

Sept.

190

T9T

200

215

211

204

226

237

233

230

226

226

260

280

28O

280

276

276

272

268

375

520 STO"

510

504

494

484

479

479

469

-

9,611

320

change in contents in Seber Lake anl Wlls

Mean 

Cf sin

Calendar year 1950: 

Water year 1950-51:

Mean 779 

Mean 845

2.40

2.66

32.54

36.15

Mar. 2y; discharge computed on basis 

storage dam just upstream.
PEN03SCOT RIVER E>ASIN 

Pleasant River near Milo, Maine

Drainage area. 322 sq mi.

Records available.--June 1920 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 310 ft (from river-profile map). Prior 

to June 17, 1929, chain gage read twice daily at Snows Bridge, 2 miles downstream.

Average discharge. 31 years (1920-51), 674 cfs.

Extremes.--Maximum discharge during year, 15,600 cfs Mov. 27 (gage height, 10.44 ft); min-

 imum, 54 cfs Oct. 3 (gage height, 1.52 ft).

1920-51: Maximum discharge, 24,400 cfs Apr. 30, 1923 (gage height, 14.33 ft, site

then in use); minimum, 15 cfs Aug. 17, 1944 (gage height, 1.21 ft).

Remarks.--Records excellent except those for periods of ice effect, which are fair. Flow 

partly regulated by power development at Brownville and by small storage dams above 

station.

Rating tables., water year 1950-51, except periods of ice effect 

feet, and discharge, in cubic feet per second)

1.6 72

1.7 98

1.8 128

2.0 200

2.3 338

Oct. 1 to Mar

2.6 520

3.0 825

3.5 1,300

4.0 1,890

5.0 3,390

6.5 6,300

8.0 9,610

9.4 13,000

1.9

2.0 

2.3 

2.6 

3.0

176

215

359

548

875

!ge height, ir

4.0

1,370

1,990

3,520

6.5 6,300

8.6 11,000

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

ie

17

18

19

20

21

22

23

24

25

26

27

28

29

50

31

Total

Mean

Cfsm

In.

Oct.

122

122

85

5S

98

98

95

95

95

93

116

185

462

349~ 474

283

242

225

200

196

185

185

196

200

238

406

412

355

323

318

328

6,866

221

0.686

0.79

Nov.

313

288

279

575

1,360

2 , 500

1,750

1,260

982

825

719

627

562

514

468

455

455

520

481

449

1,480

2,640

1,800

1,270

991

1,390

11,700

13,000

8,380

5,340

-

63,077

2,103

6.53

7.29

Dec.

3,370

2,320

1,740

1,460

3,050

4,190

2,600

1,810

3,240

5,500

3,630

4,760

*4,600

2,900

2,070

1,600

1,320

1,170

1,000

870

775

670

590

525

470

420

385

340

320

290

275

58,260

1,879

5.84

6.73

Jan.

250

240

235

230

255

275

255

240

240

225

215

210

205

200 STB"

*405

395

360

335

315

300

295

290

455

765

895

BT7J

695

605

540

455

11,505

371

1.15

1.33

Feb.

470

505

455

435

425

420 £25"

740

1,770

1,650

1,430

1,220

1,050

*930

840

825

810

800

785

760

810

875

1,000

885

825

800

740

720

_

-

-

23,400

836

2.60

2.71

Mar.

695

685

665

655

6 SO

590

575

560

540

520

515

490

4W

505

590

810

740

695

670

650

680

590

575

550

535

535

548

*494

521

653

875

18,816

607

1.89

2.18

Apr.

2,200

3,130

5,270

10,900

7 > 180

4,510

*3,760

3,760

4,630

4,450

3,940

3,490

3,040

3, 130

3,020

3 , 000

2,560

2,130

1,820

1,690

1,510

1,330

1,660

2,660

2, 120

3,320

3,590

*2,540

2,250

2,360

-

100,950

3,365

10.46

11.67

May

1,990

1,600

1,330

1,150

1,000

956

839

794

776

726

676

684

692

637

584

563

660

785

676

592

548

56?

668

726

742

660

570

1,300

3,080

2,120~

1,480

30,167

973

3.02

3.48

June

1,120

902

760

668

637

584

534

*480

430

411

365

343

306

296

268

258

258

258

258

254

228 236"

258

322

332

263

282

277

282

263

-

12,133

404

1.25

1.40

July

268

306

277

249

317

839

708

528

417

359

306

480

984

7BT

599

592

708

555

494

839

717

548

474

394

332

322

388

359

322

301

241

14,974

483

1.50

1.73

Aug.

*254

268

245

354

zm

292

249

219

215

211

199

184

172

162

148

138 T36"

166

232

219

207

268

301

254

2E4

207

199

219

287

245

215

7,039

227

0.705

0.81

Sept.

494

570

474

541

461

376

417

494

417

338

292

265

249

215

211

232

249

241

215

203

188

176

TBTj

203

207

245

245

268

287

245

-

9,196

307

0.953

1.06

Calendar year 1950: Max 13,000 Min 75 Mean 882 rfam 2.74 In. 37.18

Water year 1950-51: Max 13,000 Mln 85 Mean 976 Cfsm 3.03 In. 41.18

Note. Stage-discharge 

890 O - 54 - 4

..____. __ ___ day.

slatlon affected by ice Dec
4 " PENOBSCOT RIVER BASIN

Piscataquis River at Medford, Maine

Location. Lat 45°16' , long. 68°52' , on left bank if miles southwest of Medford, Piscataquis County, and 3i miles downstream from Pleasant River.

Drainage area.--1,161 sq mi.

Records available.--June 1924 to September 1951.

Gage. Water-stage recorder. Datum of gage is 248.7 ft above mean sea level, datum of 

T929. Prior to Aug. 13, 1929, staff gage at site ij miles downstream at different 

datum.

Average discharge.--"? years, 2,205 cfs.

Extremes.--Maximum discharge during year, 35,500 cfs Nov. 28 (gage height, 12.72 ft); minimum, 331 cfs Oct. 1, 2 (gage height, 1.80 ft).

1924-51: Maximum discharge, 50,200 cfs Mar. 20, 1936 (gage height, 15.07 ft); minimum, 99 cfs Oct. 28, 1947 (gage height, 1.28 ft).

Maximum stage known, 20.8 ft at former site 1* miles downstream, May 1, 1923.

Remarks.--Records excellent except those for periods of Ice effect or no gage-height 

record, which are fair. Some regulation for power and log driving by lakes above 

station.

Revisions.--W 1171: 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 Mar Mar. 28 to Sept. 30

1.8 

2.0

o 4_

2^8 

3.5 

4.0

331

449

756

1,160

2,070

2,850

5.0

6.0

7.0

8.5

10.5

12.5

4,900

7,600

10,900

16,900

25,500

34,500

1.8 

2.0 

2.4 

2.8 

3.5. 

4.0

342

467

784

1,200

2,130

2,960

5.0 5,090

6.0 7,800

7.0 11,300

8.5 17,600

10.5 27,000

^ubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

337

4T30"

462

449

550

564

514

528

564

494

514

528

850

1,400

1,000

775

635

528

488

456

418

394

394

431

475

£76

841

756

685

659

659

18,424

594

0.512

0.59

Nov.

651

586

543

536

l,7StT

5,140

3,730

2,820

2,330

2,080

1,650

1,400

1,370

1,260

1,150

1,090

1,140

1,140

1,060

1 , 130

2,730

7,260

5,210

3,980

3,220

3,400

20,300

34,400

28 ,200

21,800

-

163,056

5,435

4.68

5.22

Dec.

15 , 400

10,900

8,410

6,860

8,720

12 , 900

9,320

7,240

8,460

14,500

11,600

12,800

14,500

11,100

8,380

6,740

5,610

4,920

4,210

3,370

2,820

2 , 440

2,150

1,930

1,720

1,520

1,390

1,270

1,180

1,100

1 , 050

204,510

6,597

5.68

6.55

Jan.

1,000

970

950

970

1 , 030

1,070

970

950

880

870

850

830

810 540"

960

1,160

*1,370

1,270

1,150

1,050

1,000

1,100

1,180

1,180

1,420

1,990

2,410

2,360

2,24O

2,140

2,070

39,040

1,259

1.08

1.24

Feb.

1,990

1,930

1,90O

1,870

1,860

1,820

2,110

3,390

4,690

4,670

4,440

4,170

*3,830

3,350

2,990

2,680

2,330

2,110

2,060

1,930

1,860

1,900

2,070

2,330

2 , 2 10

2,070

2,060

2,010

-

_

-

72,630

2,594

2.23

2.32

Mar.

1,920

1,790

1,700

1,630

1,560

1,530

1,530

1,420

1,350

1,520

1,320

1,390

1,460

1,580

1,720

2,070

3,370

3,180

3,060

3,070

3,390

3,830

3,430

3,160

2,880

2,680

2,520

*2,640

2,640

3,050

3,770

71,960

2,321

2.00

2.31

Apr.

6,860

9,600

13,800

26,300

26,800

18,700

*14,400

13 , 400

14,400

14,900

13 , 400

12,100

10,600

10,800

10,700

10,200

9,260

7,980

6,780

5,500

4,840

4,370

4,9lO

8, 100

6,920

8,620

11, 100

*8,540

7,310

7,370

-

328,560

10,950

9.43

10.52

May

6,700

5,700

4,920

4,350

3,770

3,490

3,250

2,590

1,970

1,850

1,830

1,710

1,710

1,700

1,480

1,380

1,420

1,710

1,670

1,490

1,440

1,330

1,540

1,760

1,970

1,910

1,710

2,540

7,310

6 ,400

4,990

87,590

2,825

2.43

2.80

June

3,960

3,250

2,820

2,550

2,270

1,650

1,370

*1,250

1,090

1,000

1,070

980

880

822

784

740

704

803

851

832

803

775

713

704

880

900

832

794

748

629

-

37,454

1,248

1.07

1.19

July

495 59~0~

713

638

613

1,420

1,710

,420

,220

,000

890

,040

,610

,700

2,160

,040

,970

,480

,240

,920

,130

,710

,480

,100

920

794

930

803

757

794

784

40,071

1,293

1.11

1.28

Aug.

*748

748

687

695

784

813

73T

629

621

613

583

516

575

613

537

467

460

454 574"

598

638

662

740

679

552

467

545

621

803

*760

560

19,373

625

0.538

0.62

Sept.

710

1,100

920

1,220

940

830

1,200

1,800

1,500

1,200

1,000

840

710

600

620

900

960

830

730

640

580

535

500

480 4B5~

540

630

730

830

760

-

25,320

844

0.727

0.81

Calendar year 1950: Max 34,400 Min 326 Mean 2,769 cfsra 2.39 In. 32.37

Water year 1950-51: Max 34,4OO Min 337 Mean 3,036 Cfsra 2.61 In. 35.45

* Discharge measurement made on this day.

Note. No gage-height record Aug. 30 to Sept. 30; discharge c 

nearby stations. Stage-discharge relation affected by ice Dec

Dmputed on basis of records fo 

21 to Mar. 27.
PENOBSCOT RIVER BASIN 43 

Penobseot River at West Enfield, Maine

Location. Lat 45"14'15", long. 68°39'10", on left bank at highway bridge, 1,000 ft downstream from Piscataquis River and 1 mile southwest of West Enfield, Penobseot County.

Drainage area.--6,600 sq mi, approximately (including about 240 sq mi drained by Chamberlain Latfe through Telos Canal).

Records available.--November 1901 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 125.9 ft above mean sea level, datum of 

T329. Prior to Dec. 11, 1912, chain gage at same site and datum.

Extremes.--Maximum discharge during year, 94,600 cfs Nov. 28 (gage height, 18.23 ft); 

minimum, 4,150 cfs Oct. 17 (gage height, 2.4V ft).

1901-51: Maximum discharge, 153,000 cfs May 1, 1923 (gage height, 25.15 ft): minimuni, 1,470 cfs Oct. 29, 1905 (gage height, 1.0 ft).

Remarks,--Records excellent except those for periods of ice effect, which are good. Flow 

regulated by several reservoirs above station (see p. ).

Cooperation.--Water-stage recorder graph furnished by T. W. Clark, hydraulic engineer, of 

Did Town.

Revisions (water years).--W 279: 1901-8. W 501: 1909(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

Oct.

4,700

4,440

4,750

4,870

5,000

4,960

5,030

4,920

4,700

4,760

4,870

5,110

5,430

6,220

6 , 5 10

4,960

4,440

4,670

4,940

4,940

4,960

4,740

4,740

5,000

5,050

5,610

5,840

5,930

5,890

5,110

5,250

15 =,5 50

5,108

Nov.

5,660

5,430

5,270

5,380

6,710

14,400

16,000

14,300

12,400

10,900

9,760

8,950

7,840

7,440

7,080

6,680

6,510

6,410

6,980

6,540

11,300

29,600

28,600

24,000

21,400

19,100

44,500

88,600

90,000

79,200

-

606,940

20,230

Dec.

66,100

54,000

45,300

38,900

37,900

44,900

38,300

32,600

32,100

43,200

42,200

46 , 100

62,200

60,400

51,200

44,300

39,300

33,700

27,800

22,900

20,300

18,800

17,400

15,400

13 , 200

10,500

9,850

9,410

10,000

10,600

10,400

1 £09,260

32,560

Jan.

10,400

10,400

10,400

10,600

10,300

10,400

10,400

9,410

9,700

9,700

9,410

9,410

9,260

9,120

8,830

8,980

*9,410

9,410

9,410

8,980

8,830

8,550

8,270

8,550

9,560

10,900

11,700

11,700

10,400

10,400

9,700

302,490

9,758

Feb.

8,980

8,690

8,830

9,120

8,410

8,690

9,120

11,700

19,400

21,200

20,000

18,800

*17,800

17,200

16 , 400

14,600

12,900

11,900

10,600

10,200

10,200

10,600

11,500

12,400

12,400

12,400

12,400

11,900

-

-

-

358,340

12 , 800

Mar.

11,700

10,900

10,200

9,700

8,830

8,830

8,980

9,120

9,120

8,830

8,550

8 , 630

10 , 000

10,700

11,500

12,700

13,600

13,600

13,200

13,500

14,300

15,400

14, 900

14 , 000

13,400

12,900

*13,000

12,900

12 , 400

12 , 800

13,800

362,190

11,680

Apr.

19,100

25,200

34,300

58,500

74,500

*62,BOO

52,600

50,700

51,400

55,000

53,200

50,800

48,000

48,600

49,500

47,800

45,900

42,000

38,100

33,100

29,800

27,300

25,400

32,100

31,600

32,200

42,300

43,600

41,400

39,100

-

$1,285.9

42,860

May

40,000

39,000

36,300

32,300

28,200

24,400

22,300

21,600

18,300

15,000

11,300

10,300

10,900

11,400

13,000

11,700

11,400

11,000

10,200

9,880

8,980

9,060

9,500

11,100

11,900

12,000

11,700

10,800

19,600

24,100

24,100

541,320

17,460

June

23 , 000

20,200

16,700

14,300

12,900

11,800

10,900

10,100

9,880

9,320

7,180

8,080

7,810

6,840

6,680

6,360

6,100

5,380

6,240

6,240

6,050

5,960

5,570

6,510

6,270

6,960

6,560

6,240

6,440

6,170

-

268,740

S.,958

July

5,860

5,070

e,ooo

5,590

4,780

7,260

12,300

14,500

13,900

11,800

10,100

9,610

14,200

17,700

16,700

13,200

13,500

12,900

11,700

11,900

13,700

12,900

10,900

10,200

8,860

8,330

8,080

8,300

8,300

6,860

7,520

322,520

10,400.

Aug.

7,440

*6,940

6,980

7,110

7,630

6,510

6,560

6,760

6,100

6,170

6,080

6,360

5,680

5,890

5,700

6,030

6,120

6,640

7,390

7,440

7,700

7,600'

7,600

7,440

6,810

6,360

5,450

6,290

6, 100

6,390

6,120

205,390

6,625

Sept.

6,360

6,660

6,290

6,660

8,190

8,050

7,680

8,030

8,190

7,440

7,260

6,910

6,220

5,520

5,730

6,120

5,700

5,980

5,910

6,200

5,730

5,700

6,000

5,610

5,800

6,480

6,610

6,460

6,560

6,560

-

196,610

6,554

Adjustedt

11,250

1.70

1.77

yes Ml Me 3

nd East

* Discharge measurement made on this daj. 

t Adjusted fjr change In CDntents of reservoirs In V 

Setee Lake and Wilson Pond In Piscataquis Elver basin, 

t Expressed In thousands. 

N_jte_. --Stage-discharge relation affected Ly Ice Dec. 23 to Mar. 25.

2.11

2.44

of Penobseot River
44 PEMOBSCOT RIVER BASIN

Passadumkeag River at Lowell, Maine

Location.--Lat 4E°11'00", long. 68°23'25", on right bank at Lowell, Penobscot Comity, 

hair a mile downstream from dam and highway bridge and 10 miles upstream from mouth.

Gage. --Water-stage recorder. Datum of gage is 151.3 ft above mean sea level, datum of 

1929. Oct. 1, 1915, to Sept. 3D , 1917, chain and staff gages at same site and datum. 

Oct. 1, 1917, to Mov. 30, 1921, chain gage at site on left bank 400 ft below highway 

bridge at different datum.

Average discharge. --36 years, 484 cfs.

Extremes . - -Maximum discharge during year, 2,520 cfs Dec. 1 (gage height, 5.71 ft); minimum, 55 cfs Oct. 10 (gage height, '0.74 ft).

1915-51: Maximum discharge, 5,680 cfs May 2, 1923 (gage height, 9.40 ft); minimum, 

about 5 cfs several times in July and August 1921 (gates in dam closed).

Revisions .--W 821: Drainage area.

Rating table, water year 195O-51, except periods of ice effect (gage 

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

1.4 

1.7 

2.0

132

178

257

353

2.5

3.0 

4.0 

5.7

553

797

1,340

2,510

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.

Oct.

68

66

64

62

59

59

59

59

58

55

62

74

98

120

136

136

132

122

114

101

96

92

91

91

92

96

1U1

105

105

103

lol

2,777

89.6

LI.3UO

0.35

Nov.

99

96

94

92 ISB303

455

471

447

400

343

293

249

213

186

168

152

147

147

145

355

765

1,070

1,080

980

975

1,330

1,890

2,290

2,480

-

17,871

596

1.99

2.22

Dec.

2,510

2,456

2,310

2,130

2,060

2,O10

1,890

1,750

1,710

1,750

1,700

1,960

2,210

2,280

2,290

2,220

2,060

1,380

1 , 850

1,710

1,540

1,420

1,330

1,250

1,160

1,060

925

890

860

845

820

52,930

1,707

5.71

6.58

Jan.

805

800

805

820

900

925

895

800

805

820

835

780

745

710

680

710

760

745

735

710

675

705

785

875

970

1,040

1,090

1,120

970

950

915

25,830

335

2.79

3.22

Feb.

885

870

850

840

340

900

1,010

1,160

1,340

1,620

1,630

1,460

1,210

1,020

950

895

772

672

623

590

549 B~I8

731

797

797

777

761

731

-

_

-

25,898

925

3.09

3.22

Mar.

695

650

625

590

567

549

527

540

545

535

527

544

581

623

681

797

879

899

975

1,020

1 , 080

1,120

1 ,080

1,010

955

904

*848

792-

741

782

838

23,499

753

2.54

2.93

Apr.

975

l.TTC

1,540

2,030

2,300

2,410

2,360

2,260

2,160

2,070

2,000

*1,940

1,890

1,390

1,860

1,840

1,770

1,720

1,680

1,670

1,620

1,550

1,520

1,570

1,570

1,710

1,820

1,840

1,820

1,790

-

54,345

1,812

6 . 06

6.76

May

1,710

l',620

1,510

1,430

1,070

1,210

1 , 080

970

884

812

701

662

676

686

676

647

628

618

599

594

599

590

594

585

562

531

53T

613

761

868

924

25,941

837

2.80

3.23

June

935 9T9"

879

822

770

725

675

f635

f625

590

570

540

515

495

485

530

f575

560

540

495

455

435

45G

490

540

545

505

470

460

470

-

17,700

590

1.97

2 .20

July

f495

480

465

475

495

590

*f660

686

676

618

553

540

676

787

828

833

WJS

721

657

657

662

633

590

527

451

397

389

371

360

343

526

17,743

572

1.91

2.20

Aug.

333

*353

f365

360

f365

339

f305

280

285

300

f420

467

488

439

408

357

303

303

319

343

364

378

378

367

336

303

269

246

229

211

198

10,431

336

1.12

1.29

Sept.

206

219

237

257

275

272

272

287

290

775

251

224

206

188

171

166

154

145

134

126

120

116

TTS

118

122

139

154

186

190

200

-

5,816

194

0.649

0.72

Calendar year 1950: Max 2,51u Min 55 Mean 515 Cfsm 1.72 In. 23.36

Water year 1950-51: Max 2,510 Min 55 Mean 769 Cfsm 2.57 In. 34.92

Peak discharge (base, 1,5UQ 1 (U

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note.--He gage-height rerDrd June 5-7, 10-16, 1U-3U, July 2-6, Aug. 4, a-10; discharge cjmputed c 

asis. of records for nparby stations. 3tage-discharge relation affected by ice Dec. 26 to Feb. 16, 

ar. 1-3, 9, 10.
PENOBSCOT RIVER BASIN 45 

Penobscot River at Passadumkeag, Maine

Location. Lat 45°10'55", long. 68°37'20", on left bank at Passadumkeag, Penobscot

 County, at head of Passadumkeag Rips, 1,200 ft downstream from Passadumkeag River.

Drainage area. 7,000 sq mi, approximately (including about 240 sq mi drained by Chamberlain Laice through Telos Canal).

Records available. November 1938 to September 1951.

Sage.--Water-stage recorder. Datum of gage is 123.6 ft above mean sea level, unadjusted.

Average discharge.--12 years (1939-51), 11,610 cfs.

Extremes.--Maximum discharge during year, 97,000 cfs Nov. 28 (gage height, 12.0 ft,

 from floodmarks); minimum, 4,310 cfs Oct. 17 (gage height, 3.15 ft).

1938-51: Maximum discharge, 126,000 cfs Apr. 14, 1940 (gage height, 13.62 ft); 

minimum, 2,600 cfs Sept. 1, 1941 (gage height, 2.44 ft).

Remarka.--Records excellent except those for periods of ice effect or no gage-height

 record, which are good. Flow regulated by several reservoirs above station 

(see p. 47).

Revisions (water years).--W 1171: 1940.

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

SO

21

22

23

24

25

26

27

28

2 9

30

31

Total

Mean

Oct.

4,840

4,520

4 840

si ooo

5,130

5,070

5.170

5,070

4,840

4,900

4,940

5,200

5,530

6,400

6,760

5,300

4,650

4,870

5,170

5,230

5,170

5,040

4,940

5,230

5,230

5 , 900

6,120

6,260

6,120

5,360

5,530

164,330

5,301

Nov.

5.790

5,560

5,400

5, 5'00

6,920

14,800

16,600

14,900

13,000

11,400

10,200

9,340

8,170

7,720

7,330

6,900

6,710

6,610

7,180

6,730

11,800

30,600

30,000

25,400

22,700

20,40O

46,300

91,100

93,100

§2 500

-

630,660

21.U2C

Dec.

69,400

57,300

48,400

41,700

40,60O

47,400

42 , 600

36,000

34,400

45,800

45,000

49,000

65,400

64,200

55,200

48,700

42,800

36,600

30,800

25,200

22,400

20,700

19,200

17,100

14,700

12,000

11,100

10.600

ll!700

11,500

*1,088.6

35.120

Jan.

11,500

11,500

11,500

11,700

11,600

11,700

11,600

10,500

10,700

10,700

10,400

lu,400

10,200

10,000

9,750

9,920

10,600

10,400

10,400

9,920

9,750

9,530

9,370

9,750

10,800

12,300

13,200

15.500

11 ', 700

11,000

337,590

10,890

Feb.

10,200

9,860

9,970

10,200

9,550

9,860

10,400

13,300

21,4OO

25,600

22,400

20,900

19,400

18,600

17,900

15,900

13,900

12,800

11,400

11,000

10,900

11,400

12 , 500

13 , 500

13,500

13,400

13,400

12,900

_

-

394,020

14,070

Mar.

12,700

11,800

11,100

10,500

9,590

9,530

9,700

9,860

9,860

9,530

9,260

9,530

10,800

11,500

12,400

13,800

14,800

14,800

14 , 500

14,900

15,700

16,900

16 ,300

15,300

14,700

14,100

* 14, 100

1 4.OOO

13,400

14 , 100

15,500

394,560

12,730

Apr.

20,800

27,400

37,400

65,200

77,000

*65,200

55,800

53,800

55,200

57,900

55,600

53,100

50,600

50,900

51,900

50,200

48,500

44,300

39,800

35,100

32 , 100

29,500

27,800

34,900

33,400

36,100

45,100

45,800

43,200

41,300

-

H.364.9

45,500

May

42,100

40^600

38,OOO

33,900

29,900

26,300

24,100

22,900

19,200

15,900

12,100

11,600

12,200

12,900

14,100

12,600

12,500

11,900

11,100

10,800

9,860

9,970

10,400

12,200

12,900

13,000

12,600

11,900

22,100

25,500

25,500

580,630

18.73C

June

24,200

21,20O

17,700

15,000

13,700

12,600

11,800

11,000

10,800

9 , 800

7,640

8,410

8,080

7,150

7 , 030

6,800

6 , 540

5,800

6,620

6,510

6,290

6,180

5,800

6,650

6,510

7,230

6 , 800

6,470

6,620

6,400

-

283,330

9,444

July

6,180

5,430

6,400

5,900

5; 150

8,080

13,000

15,500

14,700

12,500

10,800

10,200

15,000

18,900

17,800

14,300

14,500

13,700

12,500

12,900

14.700

13,700

11,900

11,200

9,430

8,800

8,600

8,750

8,700

7,190

7,820

344,210

11,100

Aug.

7,860

7,430

7,430

7,560

8,040

6,950

6,950

7,070

6,440

6,470

6,580

6,730

6,180

6,290

6,080

6,330

6,400

6,910

7,690

7,900

8.520

7,950

8,080

7,820

7,150

6,650

5,730

6,510

6,330

6,620

6,290

216,740

6,992

Sept.

6,440

6,880

6,510

7,070

8,560

8,410

8,000

8,360

8,560

7,820

7,560

7,230

6,510

5,700

5,900

6,290

5,840

6,120

6 , 120

6,400

5,870

5,940

6,150

5,840

5,980

6, 800

6,840

6,800

7,070

6,950

-

204,520

6.817

Adjustedt

Mean 

Cfsm 

In.

2,791 

0.399 

0.46

26,63C 

3.8] 

4.2E

Calendar year 1950: 

Water year 1950-51:

40,290 

5.76 

6.64

9,492 

1.36 

1.57

12,520 

1.79

1 .86

10,630 

1.52 

1.75

58,120 

8.30 

9.26

19,190 

2.74 

3.16

Observed

Max 93,100 Mln 4,520 Mean 13,510 

Max 93,100 Mln 4,520 Mean I6,45u

7,713

1.10 

1.23

9,382 

1.41 

1.63

4,274

0.611 

0.70

4,607 

0.658 

0.73

Adjusted

Mean 14,670 Cfsm E.IU In. 28.45 

Mean 17,140 Cfsn 2.45 In. 33.24

* Discharge measurement made on this day.

t Adjusted for change in contents of reservoirs in West and East Branches of Penobscot River; 

also Sebec Lake and Wilson Pond in Piscataquis River basin.

* Expressed in thousands.

Mote. No gage-height record Hov. 1 to Dec. 5; discharge computed on basis of records for stations 

on Penobscot River at West Enfield and Fassadumkeag River at Lowell. Stage-discharge relation 

affected by ice Dec. 20 to Mar. 29.
46 PEHOBSCOT RIVER BASIN

Kenduskeag Stream near Kenduskeag, Maine

Location. Lat 44°53'50", long. 68°53'00", on right bank 300 ft upstream from highway 

bridge, 1.8 miles downstream from Black Stream, and 2.9 miles south of Kenduskeag.

Drainage area.--178 sq mi.

Records available. October 1941 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 110 ft (from topographic map).

Extremes. Maximum discharge during year, 4,040 cfs Apr. 4 (gage height, 11.22 ft); minimum, 2.4 cfs Oct. 2, 3 (gage height, 1.16 ft).

1941-51: Maximum discharge, 4,040 cfs May 19, 1948, and Apr. 4, 1951; maximum gage 

height, 12.56 ft Mar. 11, 1942 (ice jam); minimum discharge, 1.0 cfs Sept. 30, Oct. 1, 

1948 (gage height, 1.09 ft).

Remarks. Records good except those for periods of ice effect, which are fair. An a 

ficial cut has been made through a low divide between Souadabscook Stream and Bla

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

0

1

2

3

4

5

6

7

a

9

30

31

Total

Mean

Cfsm

In.

Oct.

2.6 

2.6

2.6

3.1

3.8

3.1

3.1

3.1

3.1

3.1

7.0

11

19

24

22

18

16

14

13

12

11

11

11

12

13

15

17

17

16

14

14

337.2

10.9

-

-

Nov.

14 

14

13

14

40

216

170

128

106

91

91

83

61

48

42

42

43

43

47

44

196

750

585

419

309

315

1,950

3.520

3,020

2,480

"

14,694

490

-

-

Dec.

1,760 

1,230

900

714

990

1,560

1,110

798

1,130

1,900

1,570

2,040

2 , 370

1,780

1,180

858

*664

524

444

390

335

295

265

240

215

198

190

178

172

166

162

26,328

849

-

-

Jan.

166 

170

181

258

537

524

428

363

325

291

261

244

232

228

220

260

310

285

265

250

250

280

275

280

415

840

740

555

375

300

285

10,393

335

-

-

Feb.

275

270

260

240

215

205

210

430

1.550

1,060

810

590

460

345

290

*245

215

192

178

205

240

290

340

420

525

465

430

400

-

-

-

11,155

398

-

-

Mar.

370 

345

320

300

285

275

265

265

265

265

265

340

430

525

695

1,080

1,060

1,020

995

*9S5

1,070

985

890

800

725

660

600

565

570

720

870

18,805

607

-

-

Apr.

1,520 

1,780

2,320

5,820

3,160

1,920

1,440

1,190

*985

1,130

967

959

890

1,140

1,030

887

826

756

642

646

564

469

560

1,030

775

1,280

1,590

1,100

820

767

-

36,963

1,232

-

-

May

618 

488

398

336

286

251

223

212

184

161

146

221

234

186

161

175

144

157

137

118

107

103

129

148

256

218

167

565

1.450

950

620

9,549

308

-

"

June

425

310

225

165

190

151

122

122

106

108

82

89

68

55

67

82

87

80

79

66

56

50

46

51

55

55

47

44

41

39

-

3,163

105

-

-

July

44 

44

40

39

52

510

415

304

234

179

132

168

1.020

985

585

475

508

407

355

540

660

440

328

249

181

139

112

94

98

100

93

9,530

307

-

"

Aug.

100

116

103

96

93

*82

72

63

71

63

62

63

51

42

40

39

5¥

44

54

54

52

62

77

67

56

51

49

50

52

50

47

1,960

63.2

-

"

Sept.

60

86

71

72

75

61

63

128

134

97

86

60

49

43

38

36

32

30

28

2_7_

27

27

27

27

27

30

33

38

53

44

"

1,609

53.6

-

~

Calendar year 1950: Max 3,320 Mln 2.6 Mean 325 Cfsm - In. -

Water year 1950-51: Max 3,820 Mln 2.6 Mean 396 Cfsm - In. -

Peak discharge (base, 1,600 cfs). --Dec. 6 (7 a.m.) 1.640 cfs (6.64 ft); Dec. 13 (4 a.m.) 2,490 cfs

(8.38 ft); Apr. 4 (3 to 4 p.m.) 4,040 cfs (11.22 ft); Apr. 27 (2 a.m.) 1,750 cfs (6.90 ft).

* Discharge measurement made on this day.

Note. --Stage-discharge relation affected by Ice Dec. 20 to Mar. 29.
PENOB3GOT RIVER BASIN 

Reservoirs in Penobscot River basin, Maine

Chesuneook. Ripogenus, and Caribou Lakes and Moose Pond in West Branch Penobscot River 

Dasln are controlled by Kipogenus mm, in T. 3, K. 11, Piscataquis County, 36 miles 

upstream from Millinocket and 42 miles northeast of Greenville; present dam completed 

in 1917 for power and log driving; usable capacity of reservoir, 30,000,000,000 cu ft. 

Records furnished by Great Northern Paper Co.

Ambajejus. Pemadumeook, North Twin, South Twin, and Elbow Lakes in West Branch Penobscot 

Kiver oasin are controlled cy i^ortn Twin uam, a miles upstream from Millinocket, Penobscot County, for power and log driving; usable capacity of reservoir, 15,000,000,000 

cu ft. Records furnished by Great Northern Paper Co.

Chamberlain and Telos Lakes and Round Pond in East Branch Penobscot River basin are contronea oy aams at outlet or unamoeriain and Telos Lakes; although regulation is at 

Telos Dam, in T. 6, R. 11, Piscataquis County. Telos Dam rebuilt during 1941; usable 

capacity, 5,040,000,000 eu ft between gage heights 2.0 and 11.0 ft. Records furnished 

by Bangor Hydro-Electric Co.

Second and Grand Lakes in East Branch Penobscot River basin are controlled by dam rebuilt

R. 8, Penobseot County; usable capacity, 

Records furnished by

in ia4a at outlet of Grand Lake, in T.

1,785,000,000 cu ft between gage heights 643.0 and 655.0 ft.

Bangor Hydro-Electric Co.

Sebec Lake on Sebec River at Sebec, Piscataquis County, used for power and log driving;

 usaoie capacity, 2,511,000,000 cu ft between gage heights 91 and 100 ft. Gage-height 

record furnished by Bangor Hydro-Electric Co.

Wilson Pond on Wilson Stream, 2-J miles east of Greenville, Piscataquis County, used for

 power; usable capacity, 390,000,000 cu ft between gage heights 27.5 and 33.5 ft. Gageheight record furnished by Central Maine Power Co.

Monthly change In In millions of cubic feet, water year October 195O to September 1951

Month

December .....................

Calendar year 195O .........

May ..........................

June .........................

Water year 1950-51 .........

Chesuneook, Ripogenus, 

Caribou, Amajejus, 

Pemadumeook, North Twin, 

South Twin, and Elbow 

Lakes and Moose Pondt

+15,746

+35,861

-4,426

+19,768

Chamberlain, Telos 

Second, and 

Grand Lakes 

and 

Round Pond

+1,838

-959

+436

+194

-72

+1,251

Wilson 

Pond and 

Sebec 

Lake

+2,031

-941

+172

-388

+16

-256

-329

+831

t Includes change in contents of following additional reservoirs In West Branch Fenobscot River 

basin, used primarily for log driving (total capacity approximately 10,000,000,000 cu ft): 

Seboomook, Penobscot, Lobster, Shallow, Caucomgomoc , Loon, Umbasooksus, Harrlngton, Ragged, 

Sourdnahunk, and Rainbow Lakes, Canada Falls Reservoir, and Poland Pond.
48 SHEEPSCOT RIVER BASIN

Sheepscot River at North Whitefield, Maine

Location.--Lat 44°13'20", long. 69°35'40", on left bank at North Whitefield, Lincoln 

County, just upstream from highway bridge and half a mile downstream from Pleasant 

Pond Brook.

Drainage area. 148 sq mi.

Records available.--October 1938 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 101.1 ft above mean sea level, datum of

Average discharge.--13 years, 215 cfs.

Extremes. Maximum discharge during year, 1,640 cfs Nov. 27 (gage height, 6.08 ft); minimum, 1C cfs Oct. 31, Nov. 4; minimum gage height, 1.86 ft Nov. 3, 4.

1938-51: Maximum discharge, 5,260 cfs Apr. 13, 1940 (gage height, 11.81 ft, backwater from fish weir); minimum, 5.0 cfs Oct. 24, 1941 (gage height, 1.70 ft).

Remarks.--Records excellent except those for days of fragmentary gage heights, which 

are good and those for periods of ice effect or no gage-height record, which are 

fair. Some regulation at low flow by saw mill at North Whitefield.

Rating tables, water years 1950-51, except periods of ice effect (gage 

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

Oct. 1 to Nov. 26 Nov. 27 to Sept. 30

2.4

2 .6

2.8 136

3.0 185

3.3 274

3.7 415

4.2 613 96

136

3.0 

3.3 

3.7 

4.2 

5.0 

5.8

185

274

415

614

1,020

1,470

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

Oct.

19

18

17

16

16

15

15

15

14

14

15

18

21

15

19

18

17

16

16

15

14

13

T3

13

13

13

13

13

13

13

13

477

15.4

0.104

0.12

Nov.

12 rz

12

13

35

94

63

52

47

43

41

37

36

34

33

33

33

33

32

32

240

385

205

172

177

610

1,470

1,210

1,360

1,360

-

7,916

264

1 .78

1.99

Dec.

1,240

1,080

926

790

9OO

*855

731

676

1,280

1,160

1,120

1^450

T7BTC

1,200

1,040

905

775

680

592

499

445

393

356

328

318

281

252

225

210

207

205

22,469

725

4.90

5.65

Jan.

196

188

182

225

271

228

216

213

b215

202

193

188

185

b!78

TB5

225

220

207

202

199

b215

b215

b215

420

685

495

476

445

415

371

f335

8,405

271

1.83

2.11

Feb.

335

350

390

390

345

350

395

1.420

775

703

654

588

530

487

415

371

332

297

297

297

277 3~96"

487

442

423

408

415

378

-

_

-

12,947

462

3.12

3.25

Mar.

335

318

290

274

258

246

246

265

225

182

202

297

307

294

1,090

844

755

736

717

975

1,170

1,010

916

838

806

731

627

610

542

526

665

17,297

558

3.77

4.35

Apr.

860

816

1,100

1,240

1,340

1,410

1,290

1,150

1,230

1,120

992

916

888

905

833

726

708

636

584

571

495

457

son

654

584

1,020

894

785

708

640

-

26,152

872

5.89

6.57

May

575 "5T5

468

419

371

335

297

271

252

237

228

258

265

275

260

240

240

24O

230

220

200

180

152

THE

160

158

158

225

360

350

320

8,618

278

1.88

2.17

June

300

2SO

240

220

190

172

164

152

145

136

128

121

115

111

113

126

130

128

117

106

94

86

81

81

76

70

67

67

66

64

-

3,926

131

0.885

0.99

July

64

63

60

58

76

117

106

81

70

61

58

122

500

250

175

162

177

162

290

405

294

252

237

222

205

185

169

154

164

159

148

5,276

170

1.15

1.33

Aug.

158

150

142

126

119

117

108

102

96

91

82

74

70

64

61

60

60

60

58

56

54

60

68

72

64

60

58

56

54

52

5?

2,504

80.8

0.546

0.63

Sept.

f50

48

48

48

*47

44

47

55

64

H5

48

44

42

41

40

40

38

36

35

35

34

34

34

35

35

36

35

35

34

32

-

1,249

41.6

0.281

0.31

Calendar year 1950: Max 1,470 Min 12 Mean 239 Cfsm 1.61 In. 21.88

Water year 1950-51 : Max 1,470 Mln 12 Mean 321 Cfsm 2.17 In. 29.47

Peak discharge (base, 1,100 cfs). Nov. 27 (7 to 9 a.m.) 1,640 cfs (6.08 ft); Dec. 9 (10 a.m.)

1,450 cfs (5.77 ft); Mar. 15 ^1 p.m. 1,220 cfs (5.35 ft); Apr. 9 (12 m.) 1,310 cfs (5.52 ft); Apr.

26 (1 p.m.) 1,120 cfs (5.18 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note. No gage-height record Feb. 1-7, May 13 to June 5, Aug. 1-3, 16-31; discharge computed on

basis of weather records and records for nearby stations.
KENNEBEC RIVER BASIN 

Moosehead Lake at East Outlet, Maine

49

Location.--Lat 45°35'10", long. 69°42 I 45", at wharf at east outlet of lake, at Moosehead, 

PIscataquis County.

Drainage area.--1,240 sq mi, approximately. 

Records available.--April 1895 to September 1951.

Sage.--Staff gage read daily at 7 a.m. Datum of gage is 1,011.48 ft above mean sea level,

 Saturn of 1929.

Extremes.--Maximum gage height observed during year,- 17.57 ft May 23; minimum observed,

 13.67 ft Nov. 5, 6.

1895-1951: Maximum gage height, 18.0 ft May 30, 1902; minimum, 10.0 ft or lower, 

present datum, Mar. 20-29, 1911.

Remarks. Lake is controlled by dams at East and West Outlets originally built prior to 

1840. East Outlet Dam partly rebuilt of concrete in 1947-48 with gate sills at elevation 7.0 ft. Lake outlet dredged in 1948 to permit drawing level down to elevation 

10.0 ft at a faster rate than formerly. Capacity, 23,735,000,000 cu ft between gage 

heights 10.0 and 17.5 ft. Water is used primarily for power, although some logs are 

driven each year. During October, November, April, July, August and September some 

water was diverted through gates in dam at West Outlet.

Cooperation.--Gage-height record furnished by Kennebec Water Power Co. 

Revisions (water yearsJ.--W 1111: 1946-47 (change in contents).

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.

14.87

14.86

14.80

14.76

14.71

14 . 62

14.58

14.47

14.45

14.37

14.32

14.23

14.28

14.28

14.28

It. 24

14.16

14.12

14.05

14.05

14.03

14.02

13.98

13.98

13.95

13.90

13.85

13.80

13.80

13.78

13.75

Nov.

13.72

13.68

13.68

13.6e

13.67

13.67

13.78

13.85

13.87

13.88

13.90

13.91

13.88

13.86

13.86

13.88

14.07

14.12

14.12

14.16

14.27

14.38

14.44

14.63

14.75

14.85

15.20

15.55

15.78

16.00

-

Dec.

16.15

16.25

16.27

16.30

16.40

16.56

16.62

16.63

16.82

16.91

17.00

17.08

17 .17

17.15

17.09

17.17

17.23

17.28

17.32

17.31

17.33

17.33

17.36

17.38

17.51

17 .47

17.44

17.41

17.38

17.50

17.47

Jan

17.47

17 .43

17.38

17.36

17.34

17.30

17.27

17.23

17.19

17.15

17.05

17.02

16.99

16.97

16.95

16.89

16.85

16.79

16.72

16.67

16.67

16.62

16.54

16.54

16.53

16.52

16.50

16.42

16.42

16.38

16.34

Feb.

16.22

16.19

16.10

16.08

15.94

15.84

15.81

15.87

15.90

15.90

15.90

15.89

15.89

15.87

15.87

15.88

15.85

15 . 82

is! 87

15.82

15.78

15.73

15.73

15.71

15.67

15.61

15.55

15.53

_

_

-

Mar.

15.47

15.43

15.35

15.25

15.20

15.13

15.07

14.99

14.95

14.89

14.82

14.77

14 . 70

14.66

14.62

14.57

14.52

14.46

14.42

14.37

14.36

14.32

14.23

14.18

14.15

14.09

14.00

13.94

13.87

13.82

13.79

Apr.

13.78

13.81

13.92

14.25

14.39

14.58

14.77

14.88

15.06

15.19

15.38

15.55

15.60

15.74

15.80

15.88

15.94

15.94

15.92

15.92

15.89

15.95

16.07

16.18

16.32

16.50

16.80

16.88

16.97

17.07

May

17.08

17.08

17.08

17.14

17.24

17.33

17.41

17.47

17.42

17.48

17 .48

17.50

17.51

17.50

17 .47

17.48

17.50

17.54

17.50

17.49

17.49

17.55

17.57

17.54

17.52

17.49

17.45

17.49

17.58

17.60

17.55

June

17.53

17.56

17.51

17.45

17.47

17.43

17.42

17.35

17.40

17.35

17.36

17.34

17.26

17.16

17.16

17.18

17.19

17.14

17.01

16.88

16.86

16.86

16.80

16.80

16.85

16.80

16.66

16.66

16.66

16.65

-

July

16.66

16.68

16.68

16.67

16.74

16.88

16.88

16.90

16.93

16.95

16.97

17.10

17.13

17.15

17.19

17.20

17.27

17.30

17.30

17.34

17.36

17.32

17.36

17.36

17.34

17.26

17.25

17.21

17.15

17.07

17.03

Aug.

16.95

16.90

16 .82

16.81

16.75

16.67

16.64

16.58

16.56

16.53

16.45

16.40

16.36

16.28

16.25

16.20

16.18

16.16

16.15

16.08

16.08

16.06

16.04

15.98

15.95

15.95

15.95

15.87

15.84

15.80

15.75

Sept.

15.85

15.87

15.96

16.05

16.08

16.08

16.10

16.11

16.11

16.11

16.08

16.07

16.05

16.01

16.00

15.95

15.97

15.97

15.95

15.92

15.90

15.88

15.89

15.89

15.85

15.85

15.79

15.76

15.71

15.65

-

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

Month

Oct. 31. ......................

June 30 .......... . . . . ....

Sept. 30............ ...........

Gage 

height 

(feet)

13.75

Contents 

(millions of 

cubic feet)

Change In contents 

during month 

(millions of 

cubic feet)

-3,553

+4,730

+16,428

-2,595

-3,531

+ 1,551

+ 1,224

-320

+2,488
50 KENNEBEC RIVER BASIW 

Kennebec River at Moosehead, Maine

Location. Lat 45 a35'10", long. 69°43'10", on right bank an eighth of a mile downstream 

rrom dam at east outlet of Moosehead Lake and half a mile northwest of Moosehead, 

Pisoataquis County.

Drainage area.--1,240 sq mi, approximately. 

Records available. October 1919 to September 1951.

gage.--Water-stage recorder. Datum of gage is 1,015.53 ft above mean sea level, datum of 

T929. Prior to Oct. 9, 1924, chain gage on railroad bridge 300 ft downstream at same 

datum.

Average discharge.--32 years, 1,812 cfs.

Extremes.--Maximum discharge during year, 9,970 cfs Dec. 13 (gage height, 8.11 ft); mini- 

 mum, 275 cfs Nov. 25, 26 (gage height, 2.55 ft).

1919-51: Maximum discharge, 15,600 cfs May 8, 1947 (gage height, 9.94 ft); minimum, 

about 62 cfs Apr. 7-15, 1923.

Remarks.--Records excellent except those for periods of backwater from highway bridge 

construction, which are good. Some water diverted down west channel by leakage and 

occasional opening of gates in dam at West Outlet. Flow regulated by Moosehead (see p. 49), 

Brassua Lakes and First and Second Roach Ponds (see p. 60).

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

and discharge, In cubic feet per second)

2.5 250

2.6 300

2.8 414

3.0 542

3.4 845

3.8 

4.5 

5.3 

6.3 

7.7

1,240

2,080

3,410

5,490

8,820

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

Oct.

2,620 

2,420

2,390

2,390

2,360

2,340

2,300

2,260

2,240

2,550

2,800

2,490

940

280 "2"55

1,110

1,780

1,770

1,750

1,750

1,050

955

1,830

1,780

1,570

1,460

1,360

1,120

1,230

1,370

1,660

54,205

1,749

Nov.

1,690 

1,300

1,280

1,280

1,030

280 "2"55

285

450

730

1,130

1,130

1,640

1,990

1,990

2,030

2,050

1,730

1,820

2,030

795

306

311

306

290

280

285

290

295

300

-

29,603

987

Dec.

300 

306

306

316

316

311

295

29^

300

300

2,180

5,300

8 , 800

8,100

3,320

899

899

1,550

2,340

2,550

2,530

2,550

1,460

570

1,720

2,600

2,620

2,620

2,620

2,630

2,630

63,533

2,049

Jan.

2,620 

2,580

2,600

2,620

2,600

2,620

2,620

3,240

3,660

3,640

3,600

3,250

2,990

2,990

2,970

2,960

2,960

2,920

2,890

2,330

2,280

2,840

2,840

2,540

1,410

973

1,4273

3,110

3,320

3,260

3,670

86,323

2,785

Feb.

4,280 

4,10~0

3,460

3,240

3,500

3,490

3,470

2,200

1,410

1,740

1,890

1,770

1,780

1,770

1,760

2,3OO

1,660

908

l.B^U

2,120

2,610

2,960

2,960

2,940

2,940

2,920

2,940

2,870

_

-

-

71,638

2,559

Mar.

2,850 

3,340

3,860

4,000

3,920

3,860

3,580

3,410

3,370

3,330

3,320

3,260

3,220

3,200

3,200

3,180

3,150

3,130

3,080

3,040

3,020

3,180

3,240

3,220

3,170

3,260

3,330

3,280

3,220

3,180

3,170

102,570

3,309

Apr.

1,520 

333

355

1,350

2,160

3,260

4,120

4,260

4,430

4,540

5,060

6,380

7,020

7,160

7,180

8,OOO

8,550

8,520

8,500

7,090

3,680

1,570

1,270

715

373

384

3,350

5,730

5,720

8,650

-

131,193

4,373

May

8,600 

6,940

4,160

1,990

1,090

610

414

2,2~6T5

1,480

820

2,190

3,170

3,640

3,640

2,570

1,950

2,330

3,710

3,200

2,650

2,650

3,880

5,140

5,190

4,970

4 , 220

2,310

1,800

3,010

4,710

4,530

99,824

3,220

June

2,940 

2,860

2,810

2,380

2,840

2,870

1,560

1,860

2,380

445

505

4,460

4,42O

1,970

414

420

1.790

4,930

5,250

2,640

1,360

2,710

3,280

1,520

2,170

3,980

2,910

837

829

829

-

70,169

2,339

July

837 

854

845

585

439

425

361

355

3ET

367

725

570

367

367

367

373

373

379

384

390

1,080

1,140

390

760

2,800

2,970

2,970

2,600

2,680

2,150

2,920

32,184

1,038

Aug.

2,900 

2,9OO

2,870

*2,580

2,280

2,620

2 , 820

2,800

3,330

3,350

3,330

3,300

3,110

2,630

3,010

3,170

3,150

3,130

2,920

2,920

3 , 080

3,060

3 , 040

2,820

1,720

2,480

2,990

2,870

2,450

2,480

2,480

88,590

2,858

Sept.

945 

355

TTZ

373

373

373

379

379

650

1 , 300

1,660

2,180

2,630

2,780

5,180

2,220

1,950

2,620

2,970

2,800

2,560

2,550

2,560

2,900

3,090

3 , 080

2,300

*1,990

1,980

2,250

-

55,750

1,858

Adjusted for diversion and change In contentst

Mean 

Cf sm 

In.

505 

0.407 

0.47

3,599

2. 90 

3.24

Calendar year 1950 : 

Water year 1950-51;

4,993 

4.03 

4.65

1,209 

0.975 

1.12

1,475 

1.19 

1.24

1,099 

0.886 

1.02

9,267 

7.47 

8.33

4,345 

3.50 

4.O4

Observed

Max 8,800 Min 168 Mean 1,263 

Max 8,800 Min 280 Mean 2,426

1,108 

0.894 

1.00

1,561 

1.26 

1.45

667 

0.538 

0.62

1,143 

0.922 

1.03

Adjusted

Mean 2,O35 Cfsm 1.64 In. 22.31 

Mean 2,577 Cfsm 2.08 In. 28.21

* Discharge measurement made on this day,

t Adjusted for diversion through West Outlet and change In contents of Brassua and Moosehead Lakes 

and Second and First Roach Ponds.

Note. Stage-discharge relation affected by highway bridge construction July 14 to Aug. 31, Sept.

10-30.
KENNEBEC RIVER BASIN 

Kennebeo River at The Forks, Maine

Location.--Lat 45°20'35", long. 69°57'45", on right bank at The Forks, Somerset County,

 hall' a mile upstream from highway bridge and 1 mile upstream from Dead River.

Drainage area.--1,570 sq mi, approximately.

Records available.--September 1901 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 569.0 ft above mean sea level, datum of

 T929. Prior to June 21, 1912, chain gage and June 21, 1912, to Oct. 17, 1919, waterstage recorder and chain gage at highway bridge half a mile downstream at different 

datum.

Average discharge. 49 years (1902-51), 2,501 cfs (unadjusted).

Extremes.--Maximum discharge during year, 13,100 cfs Dec. 14 (gage height, 8.01 ft);

 minimum, 600 cfs June 17 (gage height, 2.04 ft).

1901-51: Maximum discharge, about 23,700 cfs June 18, 1917 (gage height, 10.1 ft, 

site then in use); minimum, 215 cfs Oct. 27, 1911.

Remarks. Records excellent except those for periods of ice effect, which are fair.

 FTW regulated by Moosehead (see p. 49 ), Brassua and Moxie Lakes, and First and Second 

Roach Ponds (see p. 60).

Revisions (water years).--W 198: 1901-6, drainage area.

Rating table, water year 1950-51, except periods of ice 

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

effect (gage 

second)

2.0 

2.2

2.4 

2.6 

3.0

571

720

890

1,090

1,550

3.4

4.2 

5.0 

6.5 

7.7

2,110

3,560

5,360

9,280

12,100

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

Tota}

Mean

Oct.

2,960

2,660

2,760

2,730

2,710

2,670

2,660

2,550

2,510

2,570

5.040

2,840

2,250

930

755

1,820

2,040

2,020

1,980

1,930

1,820

880

1,650

2,020

1,920

1,750

1,720

1,480

1,380

1,620

1,880

64,505

2,081

Nov.

1,960

2,080

2,190

2,190

2,320

1,440

1,220

1,100

1.010

1,120

1,430

1,750

1,710

2,360

2,440

2,440

2,510

2,440

2,020

2,430

2,360

2,750

2,390

2,170

1,990

1,410

6,690

6,830

5,410

4,620

-

74,830

2,494

Dec.

3,460

2,530

2,040

1,760

2,080

2,270

2,050

1,750

1,990

2,440

2,730

6,880

11,700

12.000

7,840

2,730

2,130

2,060

2,530

2,980

3,020

3,000

2,980

1,150

1,550

2,620

2 , 800

2 , 800

2,760

2,840

2 , 800

104,250

3,363

Jan.

2,890

2,890

2,930

2,940

2,960

2,980

2,980

3,260

4,370

4.590

4,260

3,860

3,440

3,440

3,300

3,280

3,250

3,210

3,110

2,940

2,220

2,530

2,870

2,530

2,020

1.260

1,550

3,360

3,800

3,930

4,190

97,140

3,134

Feb.

5.010

4,970

4, 410

3,720

3,910

3,760

3,600

3,320

1,820

2,510

2,760

2,760

2,510

2,410

2,410

2,480

2,640

1,450

1.510

2,040

2,580

3,020

3,130

3,150

3,110

3,060

3,020

2,980

_

_

-

83,850

2,995

Mar.

2.940

3,110

3,890

4.060

4,010

3,910

3,660

3,480

3,440

3,400

3,420

3,440

3,440

*3,460

3,480

3,460

3,460

3,440

3,400

3,420

3,480

3,540

3,760

3,740

3,660

3,620

3,760

3,740

3,700

3,760

3,840

110,920

3,578

Apr.

3,580

1,750

2,700

5,620

6,640

6,150

7,190

7,290

8,110

8,520

8,890

9,920

10,600

10,600

10,600

11,500

11.900

11,600

11,400

10,600

7,490

5,780

5,130

3,150

2,240

2,840

4,090

8,210

7,760

11,000

-

218,650

7,288

May

11,100

9^910

6,820

4,060

2,580

1,880

1,410

1,660

2,960

1.410

1,960

3,360

4,170

4,210

3,760

2,570

2,300

3,930

4,300

3,380

3,260

3,740

6,050

6,310

6,150

5,390

4,060

2,570

2,960

5,060

5,860

129,140

4,166

June

4,470

2,840

3,800

2,600

3,170

3,360

2,640

2,470

2,290

1,360

753

2,760

4,710

3,850

1,010

666

621

4,110

5.520

4,510

1,690

1,750

3,820

2,760

1,270

4,060

4,150

1,670

1,040

996

-

80,716

2,691

July

1,020

1,010

985

956

769

1,050

1,110

966

837

736

705

1,210

1,110

996

864

786

777

720

728

794

769

1,830

910

674

1,990

3,380

3,460

3,280

2,910

2,830

2,810

42,972

1,386

Aug.

3,250

3,190

3,170

3,060

2,620

2,710

3,130

3,130

3,250

5.600

3,580

3,560

3,500

5,080

5,150

5,420

3,420

3,500

3,420

3,190

3,440

3,480

3,420

3,360

2,460

2,200

3,280

3,360

2,980

2,820

2,890

98,600

3,181

Sept.

2,690

1,180

928

864

794

728

736

712

697

1,030

1,900

2,440

3,210

3,300

5.620

3,370

2,270

2,850

3,170

3,360

2,910

2,690

2,710

2,820

3,170

3,170

*2,870

2,240

2,140

2,210

-

66,779

2,228

Adjusted for change in ntents of reservoirs Moosehea* Lake Outlet and Moxie Pond

Mean 

Cfsm 

In.

669 

0.426 

0.49

5,32f 

3.3 C 

3.7£

Calendar year 1950: 

Water year 1950-51:

6,157 

3.92 

4.52

1,418 

0.903 

1.04

1,911 

1.22 

1.27

1,417 

0.903 

1.04

12,270 

7.81 

8.71

3.37 

3.88

Observed

Max 12,000 Min 350 Mean 1,893 

Max 12,000 Min 621 Mean 3,212

1,425 

0.908 

1.01

1,824

1.16 

1.34

852 

0.543 

0.63

1,405 

0.895 

1.00

Adjusted

Mean 2,648 Cfsm 1.59 In. 22.88 

Mean 5,322 Cfsm 2.12 In. 28.71
52 KENNEBEC RIVER BASIN

Dead River near Dead River, Maine

Location.--Lat 45°13'48", long. 70°11'58", T. 3, R. 4, Somerset County, on right bank at 

foot of Long Falls, 0.3 mile upstream from Black Brook.

Drainage area. 520 sq mi.

Records available.--December 1939 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,037.3 ft above mean sea level, datum of T929.

Average discharge. 11 years (1940-51), 748 cfs (unadjusted).

Extremes.--Maximum discharge during year, 7,750 cfs May 1 (gage height, 3.46 ft); mini-

 mum, 1.0 cfs Feb. 9.

1939-51: Maximum discharge, 10,400 cfs May 5, 1940 (gage height, 9.66 ft); maximum gage height, 10.27 ft Jan. SI, 1946 (ice jam); no flow for part of July 31, 1949, 

when flow was completely shut off by cofferdam during construction of Long Falls Dam.

Remarks.--Records good except those for periods of ice effect, backwater from pulpwood, 

or no gage-height record, which are fair. Flow regulated by Flagstaff Lake (see 

PP. 60,61).

Rating tables, water year 1950-51, except periods of Ice effect or backwater fr 

pulpwood (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr Apr. 28 to Sept. 30

3.7

3.8

3.9

4.0

4.1

4.2

4.3 

4.5 

4.7

117

169 9.2

E30

300

424

578

778

1,220

1,830

3,600

6,850

3.8

3.9

4.0

4.1

235

315

411

520

780

1,830

3,600

5,350

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

Oct.

443

438

429

420

640

742

706

*673

653

609

609

603

340

23

375

910

1,100

1,100

1,090

1,590

2,550

2,330

1,530

1,060

1,050

1,040

1,040

1,030

1,030

1,030

1,020

28,003

903

Nov.

1,020

1,020

1,020

1,020

395

2.2

2.2

2.4

194

424

420

420

815

1,040

1,030

1,030

350

1.5

" 555

1,030

310

2.0

1.7

1.5

1.5

57

74

5.4

3.6

2.8

~

12,250.6

408

Dec.

2.6

2.4

2.2

2.4

2.8

2.4

2.4

2.6

38

1,750

4,320

4.800

5,740

1,980

810

597

470

452

481

476

1,060

1,340

1,280

515

58

70

90

340

410

424

415

25,935.8

837

Jan.

406

402

392

392

910

1,290

1,290

1,280

1,280

1,280

1,260

1,250

1,240

1,240

2,020

1,870

1,240

1,880

2.650

1,690

1,220

1,980

2,640

2,620

2,030

1,220

1,230

1,640

2,220

2,210

2,200

46,472

1,499

Feb.

2,200

2,180

1,740

1,160

1,140

775

5.0

3.0

1.0

720

1,130

1,120

485

670

1,970

2,450

1,210

1,400

2,370

2,370

2,350

1,870

1,070

450

3.0

640

1,060

1,060

-

-

"

33,602.0

1,200

Mar.

1.050

1,050

1,040

400

5._0

610

1,020

1,010

1,020

395

12

645

1,000

1,000

380

625

994

1,000

1,030

585

325

9.0

7.8

8.4

7.8

470

1,020

1,010

355

18

18

18, 120. O

585

Apr.

18

18

18

144

6^6

6.6

7.8

14

106

2,520

3,800

5,980

6,470

5,180

4,410

2,680

930

1,300

2,120

2,150

1,560

1,240

2,040

2,570

2,650

5,750

6,580

4, 830

4,800

5,130 '"

75,029.0

2,501

May

*4, 190

*5,220

1,890

1,290

1,190

1,000

1,570

1,650

850

1,400

850

725

1,050

1,510

905

985

1,570

1,730

1,960

1,510

1, 110

1,250

1,440

1,580

1,030

1,170

885

985

1,400

1,120

1,130

45,945

1,482

June

985

1,120

745

925

620

795

525

480

630

485

345

485

320

560

230

400

475

225

580

166

850

540

77

114

680

260

71

1,200

1,530

1.740

"

18,158

605

July

2,230

2.870

2,640

2,300

2,220

1,850

895

1,800

2,380

1,820

2,210

1,620

525

55

1,400

1,690

1,890

1,740

1,960

2,260

1,060

2,080

2,620

1,430

32

29

27

24

22

20

IS.

43,717

1,410

Aug.

17

15

15

18

15

15

14

14

13

12

11

10

10

11

12

*48

7.3

8.0

7.3

7.3

330

465

270

6.6

6.0

6.0

8.0

7.3

8.0

*90

10

1,486.8

48.0

Sept.

11

11

365

1,200

1,160

1,870

2,180

2,080

1,990

1,280

1,230

126

124

124

126

128

131

134

365

635

605

890

919

895

871

879

430

41

45

460"

21,305

710

Adjusted for change in contents of Flagstaff Lake

Mean 

Cfsm 

In.

274 

0.527 

0.61

1,945 

3.74 4.1-

Calendar year 1950: 

Water year 1950-51:

1,521 

2.92 

3.37

319 

0.613 

0.71

624 

1.20 

1.25

471 

0.906 

1.04

4,463 

8.58 

9.57

1,567 

3.01 

3.47

Observed

Max 4,800 Mln 1.3 Mean 576 

Max 6,580 Mln 1.0 Mean 1,014

315 

0.606 

0.68

478 

0.919

1 .06

260 

0.500 

0.58

326 

0.627 

0.70

Adjusted

Mean 895 Cfsm 1.72 In. 23.36 

Mean 1,043 Cfsm 2.01 In. 27.21

* Discharge measurement made on this day.

Note .--Stage-discharge relation affected by .Ice Dec. 25, Feb. 7, 8, 25, Mar. 5, Mar. 30 t 

ickwater from pulpwood May 6 to June 28. No 'gage -height record Dec. 26-28, Feb. 9, 10; di 

computed snputed on basis of records records from storage dam .lust uastream.

Apr. 3 

scharge
KEMEBEC RIVER BASIN 

Dead River at The Forks , Maine

Location.-- Lat 45°21'00", long. 69°59'30", on left bank miles northeast of The Forks,

somerset County, and li miles upstream from mouth.

Drainage area. --872 sq mi.

Records available. September 1901 to August 1907, March 1910 to September 1951.

Gage . Water-stage recorder. Datum of gage is 600.5 ft above mean sea level, adjustment 

of 1912. Prior to Sept. 29, 1923 , staff gage at site 100 ft downstream at same datum.

Average discharge .--41 years (1910-51), 1,363 cfs.

Extremes. Maximum discharge during year, 12,200 cfs Apr. 13 (gage height, 7.04 ft); minimum, 8C cfs Aug. 14 (gage height, 1.60 ft).

1901-7, 1910-51: Maximum discharge, 28,700 cfs Mar. 20, 1936 (gage height, 10.54 

ft), from rating curve extended above 15,000 cfs; minimum since September 1923, 54 cfs 

Sept. 27, 1941 (gage height, 1.50 ft).

Remarks . Records excellent except those for periods of ice effect, which are fair. Flow 

partly regulated by Flagstaff and Spencer Lakes and Dead River Pond (see pp. 60,61).

Revisions. W 801: Drainage area.

Rating table, water year 1950-51, except periods of Ic 

height, In feet, and discharge, In cubic feet pe

1.6

1.7

1.8 

2.0

125

177

304

2.2 

2.4 

2.8 

3.2

469

680

1,210

1,830

3.6 

4.0 

5.0 

6.4

effect (gage 

second)

2,520

3,340

5,800

9,980

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

Oct.

549

549

539

509

559

839

852

813

788

764

788

917

1,030

569

see

865

,260

.,260

,270

,300

,930

,150

,150

,700

,340

,280

,260

,210

,260

1,270

1,270

33,206

1,071

Nov.

1,260

1,240

1,300

1,730

1,690

1,280

986

800

716

1,000

972

930

1,040

1,460

1,450

1,440

1,150

407

490

1,400

1,360

1,060

728

591

519

1,420

8.110

5,480

3,630

2,810

-

48,449

1,615

Dec.

2,190

1,730

1,450

1,320

1,810

2,120

1,670

1,340

1,670

2,990

5,150

6,460

6,240

4,220

2,430

1,800

1,640

1,400

1,300

1,210

1,500

2,100

1,900

1,440

580

469

529

624

1,150

1,280

1,380

63,092

2,035

Jan.

1,300

1,220

1,150

1,070

1,200

1,670

1,670

1,670

1,650

1,620

1,610

1,590

1,540

1,620

1,970

2,360

1,620

1,720

2,670

2,170

1,530

1,730

2.690

2,690

2,500

1,510

1,540

1,700

2,360

2,290

2,270

55,900

1,803

Feb.

2,270

2,190

1,930

1,280

1,260

1,200

381

559

499

865

2,020

1,920

1,400

*740

2,000

2.600

2,120

891

2,430

2,360

2,360

2,320

1,450

1,140

575

539

1,440

1,450

-

-

-

41,987

1,500

Mar.

1,510

1,460

1,450

1,090

350

500

1,340

1,580

1,580

1,110

327

407

1,450

1,460

1,210

602

1,500

1,530

1,480

1,480

539

443

407

575

358

566

1,420

1,450

1,180

509

669

30,730

991

Apr.

1,100

1,420

2,320

5,320

4,000

2,930

2,580

2,620

4,360

6,450

7,820

7,910

9,850

8,640

7,140

6,980

5,510

5,480

3,700

3,560

3,130

2,520

3,160

*4,260

4,260

6,500

9,780

7,750

7,520

8,120

-

152,450

5,082

May

6,920

8.100

4,520

5,250

2,330

2,820

2,390

5,720

2,540

2,560

1,850

1.660

1,860

2,510

1,800

1,680

2,160

2,850

4,080

3,340

2,320

2,470

2,990

2,850

2,390

1,980

2,290

2,480

2,790

2,140

1,850

89,250

2,879

June

,810

,720

,450

,540

,180

,100

,010

878

950

800

728

680

636

636

569

499

499

559

460

716

529

1,260

519

390

810

1,070

509

700

2,090

1,920

27,997

933

July

2,160

2,670

1,110

2,620

2,290

3,070

2,810

1,920

1,640

2,410

2,620

5,020

2,650

852

624

813

2,130

2,470

2,620

3,130

2,740

559

2,970

5.560

*800

624

559

509

469

445

599

57,241

1,846

Aug.

573

535

527

558

581

335

230

135

125

125

116

108

95

86

91

99

135

167

304

250

525

776

740

504

224

195

236

542

290

366

529

8,502

274

Sept.

1,260

1,330

904

1,860

1,750

2,030

2.710

2,620

2,390

2,080

1,100

825

358

327

527

542

519

512

304

740

728

950

1,050

1,040

1,040

1,050

865

415

986

1,050

~

52,982

1,099

Adjusted for change In contents of Flagstaff and Spencer Lakes and Dead River Pond

Mean 

Of sm 

In.

446 

0.514 

0.59

3,161

3.62 

4.04

Calendar year 1950: 

Water year 1950-51:

2,573 

2.95 

3.40

623 

0.714

0.82

924 

1.06 

1.10

903

1.04 

1.20

7,395

8.48 

9.46

2,855 

5.27 

5.77

Observed

Max 8,110 Mln 112 Mean 1,217 

Max 9,850 Mln 86 Mean 1,758

572

0.656 

0.73

915

1.O5 

1.21

486 

0.557 

0.64

725

0.851 

0.93

Adjusted

Mean 1,535 Cfsm 1.76 In. 25.88 

Mean 1,792 Cfsm 2.06 In. 27.89

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ic Jan. 1-5, 9-12, Jan. 30 to Feb. 6, Feb. 11-15.
54 KENNEBEC RIVER BASIN

Austin Stream at Bingham, Maine

Location.--Lat 45°03'55", long. 69°52'55", on right bank at Bingham, Somerset County, 

three-quarters of a. mile upstream from mouth.

Drainage area.--91.1 sq mi.

Records available. October 1931 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 350.1 ft above mean sea level, datum of

Average discharge. 19 years (1932-51), 163 cfs.

Extremes.--Maximum discharge during year, 5,820 cfs Nov. 27 (gage height, 12.45 ft); minimum, 12 cfs Aug. 14-17; minimum gage height, 6.22 ft Oct. 6, 7, 8, 9, 10, 11.

1931-51: Maximum discharge, 5,820 cfs Sept. 17, 1932 (gage height, 13.12 ft); minimum, 1.6 cfs Sept. 30, Oct. 1, 1948.

Remarks.--Records good except those for periods of ice effect, which are fair. 

Revisions. W 1171: Drainage area.

Rating table

Oct. 1 to Ho

water year 1950-51, except periods of Ice effect 

and discharge, in cubic feet per second)

gage height, in feet,

Nov. 27 to Apr. 3 Apr. 4 to Sept. 30

79

119

258

457

861

1,600

9.0 

9.5

10.0

11.0

12.1

502

793

1,200

2,500

4,830

75

108

8.6 

9.0 

9.5

10.0

10.6

11.4

152

212

283

460

770

1,200

1,900

3,200

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

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

19

18

17

15

14

14

13

13

13

13

17

56

232

199

140

100

77

65

60

55

49

47

45

47

56

90

90

77

74

76

69

1,870

60.3

0.662

0.76

Nov.

63

60

56

57

350

467

331

239

185

160

140

121

108

98

98

84

98

113

102

102

730

854

515

347

258

1,550

4.860

2,630

1,480

1,010

-

17,256

575

6.31

7.04

Dec.

686

487

386

349

1,090

1,090

645

468

1,130

1,300

915

1,560

1,300

780

497

361

*283

237

193

168

150

136

126

114

102

96

86

78

77

72

SI

14,829

478

5.25

6.05

Jan.

64

63

59

57

56

53

52

51

50

48

46

45

44

43

43

43

43

43

44

44

46

48

50

57

83

118

*TT8~

112

102

94

83

1,902

61.4

0.674

0.78

Feb.

73

66

57

51

49

42

38

290

365

400

420

380

350

280

220

192

154

130

1E9

120

112

110

*112

105

99

96

91

85

-

-

-

4,616

165

1.81

1.88

Mar.

83

75

72

69

69

64

63

63

61

59

56

66

77

*80

137

164

168

166

159

180

*252

237

205

172

148

130

125

117

136

190

299

3,942

127

1.39

1.60

Apr.

662

877

1,840

*5.200

*1,890

1,150

950

1,010

1,130

1,210

1,130

924

822

792

829

837

679

536

455

426

384

332

553

699

519

814

749

530

465

492

-

26,886

896

9.84

10.98

May

398

315

*261

229

199

177

158

147

133

122

110

110

120

108

96

88

98

120

106

93

83

88

124

142

163

138

114

145

202

183

145

4,715

152

1 67

1.92

June

~9T 112

85

72

72

62

*56

50

46

40

37

34

30

29

27

27

27

28

25

23

22

20

21

22

23

24

22

19

18

11"

1,188

39.6

0.435

0.49

July

19

18

17

16

37

158

128

86

56

42

35

133

215

133

91

89

*108

89

88

147

106

74

56

42

33

29

26

23

22

22

19

2,157

69.6

0.764

0.88

Aug.

19

18

17

26

27

22

17

16

16

15

15

13

13

12

12

12

12

13

14

13

14

24

27

21

18

16

29

39

31

26

23

590

19.0

0.209

0.24

Sept.

75

75

64

81

64

48

105

172

120

83

60

47

38

30

43

120

110

78

56

44

36

31

30

35

35

58

*58

75

77

5E

~

2,007

66.9

0.734

0.82

Calendar year 1950: Max 4,860 Mln 13 Mean 228 Cfsm 2.50 In. 34.00

Water year 1950-51: Max 4,860 Mln 12 Mean 225 Cfsm 2.47 In. 33.44

Peak discharge (base. 1,200 cfs).--Mov. 27 5,820 cfs (12.45 ft); Dec. 5 (8 p.m.) 1,360

cfs (10.15 ft); Dec. 9 (12 p.m.) 1,480 cfs (10.26 ft); Dec. 12 (8 p.m.) 1,530 cfs (10.30 ft); Apr. 

4 (4 a.m.) 3,500 cfs (11.55 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 23 to Feb. 17, Mar. 1-3, 10.
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56 KENNEBEC RIVER BASIN

Carrabassett River near North Anson, Maine

Location. Lat 44°52'00", long. 69"57'10", on left bank 3 miles upstream from Mill Stream 

ana North Anson, Somerset County.

Drainage area.--354 sq mi.

Records available. November 1901 to May 1907, August 1925 to September 1951.

Gage. Water-stage recorder. Datum of gage is 303.3 ft above mean sea level, datum of 

 T929. Nov. 1, 1901, to May 1907, chain and rod gages 1 mile upstream at different datum.

Average discharge. 26 years (1925-51), 660 cfs.

Extremes. Maximum discharge during year, 17,400 cfs Apr. 4 (gage height, 16.98 ft);

maximum gage height, 17.30 ft Feb. 8 (icp jam), minimum discharge, 50 cfs Oct. 7 (gage 

height, 2.50 ft).

1925-51: Maximum discharge, 24,100 cfs Mar. 19, 1936 (gage height, 21.17 ft), from 

rating curve extended above 11,000 cfs; minimum, 18 cfs Oct. 29, 1929 (gage height, 

2.02 ft) .

Revisions.--W 851: Drainage area.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

128

233

4.0 

5.0

e .0

7.0 

8.0

455

1,040

1,950

3,100

4,400

9.0

10.0

11.0

12.0

14.1

5,800

7,250

8,720

10,200

13,200

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

50

31

Tota:

Mean

Cfsm

In.

Oct.

76

84

84

ao

72

82

67

65SCSI

104

377

920 SUE"

434

554

282

221

259

224

206

197

192

197

215

339

321

275

259

282

292

7,297

255

0.664

0.77

Nov.

262

236

230

2~31T

1,360

1,620

1,080

892

738

581

409

373

346

328

303

292

313

346

*317

299

1,920

2,100

1,330

945

561

4,710

12,800 ~~4~ 500

2^600

1,870

-

43,897

1,463

4.13

4.61

Dec.

1,500

1,280

1,120

1,050

3,620

2,840

1,910

1,300

5,480

5,190

3,030

3,280

2,930

2,070

1,520

1,100

955

800

586

465

455

440

415

305

580

565

560

345

375

375

46,276

1,495

4.22

4.87

Jan.

335- 360

320

305

295

285

275

265

260

250

245

235

230

225

235

250

225

215

*205

205

205

200

190

220

275

340

300

280

260

235

230

7,955

257

0.726

0.84

Feb.

240

235

230

220

210

205

23F

1,640

1,356

1,140

1,040

940

870

*805

700

660

625

595

575

545

525

515

546

490

499

486

473

447

-

-

17,019

608

1.72

1.79

Mar.

421

410

405

400

395

580

375

405

395

395

377

393

495

*518

662

997

941

920

872

906

*1,110 *955

781

685

623

566

518

541

eoi

' 920

1,560

19,922

643

1.82

2.10

Apr.

5,920

5,730

7,930

15,200

*6,080

4,030

3,850

3,690

6,160

5,760

5 , 090

4,090

3,740

5,490

3,200

3,510

2,630

2,160

1,800

1,580

1,180

1,110

2,180

2,950

2,580

4,350

3,360

2,380

2,290

2,680

-

114,480

5,816

10 . 78

12.03

May

1,760

1,490

1,210

886

794

781

787

859

806

845

685

673

806

714

656

819

976

983

714

645

673

794

1,200

1,040

1,140

906

685

1,000

1,470

990

768

28,535

920

2.60

3.00

June

628

54T

490

442

430

385

350

321

285

262

243

224

206

195

192

209

215

212

206

186

165

152

141

200

212

183

155

146

135

126

-

7,837

261

0.757

0.82

July

137

158

146

118 IEB"

650 roe"

365

279

230

200

296

522

565

268

221

275

272

265

464

359

265

227

200

170

155

146

130

132

146

155

7,952

257

0.726

0.84

Aug.

139

148

130

148

181

158

130

118

118

116

97

8855"

88

90

88

94

92

128

1S8

141

203

250

170

128

112

246

381 2SB"

215

178

4,646

150

0.424

0.49

Sept.

425

450

335

339

299

249

500

54.6

3T7

303

255

230

209

192

200

299

265

218

*189

168

155

146 I4"S"

148

148

170

178

178

181

158

-

7,636

255

0.720

0.80

Calendar year 1950: Max 14,100 Mln 65 Mean 792 Cfsm 2.24 In. 50.38

Water year 1950-51: Max 13,200 Kin 65 Mean 859 Cfsm 2.43 In. 52.96

Peak discharge (base, 6,000 cfs). --Nov. 27 (12:50 a.m.) 16,700 cfs (16.52 ft); Dec. 9 (7 p.m.)

8,300 cfs (10. 72 ft); Apr. 4 (1:30 a.m.) 17,400 cfs (16.98 ft); Apr. 9 (2 p.m.) 7,250 cfs (10.00 ft).

Discharge measurement made on this day. 

Note. No gage-height record Nov. 28 to Dec. 5; discharge computed on basis of records for nearby 

stations. Stage-discharge relation affected by Ice Dec. 20 to Feb. 21, Mar. 2-10.
KENNEBEC RIVER BASIN 

Sandy River near Mercer, Maine

57

Location.--Lat 44°42'30", long. 69°56'£5", on right bank 0,9 mile upstream from Bog 

Stream, 3 miles north of Mercer, Somerset County, and 9-| miles upstream from mouth.

Drainage area.--514 sq mi.

Records available. October 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 197.1 ft above mean sea level, datum of

Average discharge. 22 years (1929-51), 889 cfs.

Extremes.--Maximum discharge during year, CO,400 cfs Apr. 4 (gage height, 12.68 ft); 

minimum, 61 cfs Oct. 7, 8 (gage height, 2.44 ft).

1928-51: Maximum discharge, 33,000 cfs Mar. 19, 1936 (gage height, 16.75 ft), 

from rating curve extended above 11,400 cfs on basis of slope-area determination of 

peak flow; minimum, 32 cfs Sept. 22-26, 1939 (gage height, 2.15 ft).

Remarks.--Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Some regulation at low flow by mills above station.

Hating table, watei 

height, in f<

ear 1950-51, except periods of ice effect (gage 

, and discharge, in cubic feet per second)

232

350

4.1 

4.6 

5.5

507

715

1,170

2,270

3,980

7,280

12,700

18,400

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

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

ie

17

18

19

20

21

23

24

25

26

21

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

92

87

87

81

71

63

6254"

74

76

97

220

795 6~70~

407

311

268

232

222

209

196

173

167

179

196

199

264

257

225

206

225

6,475

209

0.407

0.47

Nov.

225

209

184

TET

315

1 , 800

934

612

478

418

378

341

311

291

264

257

268

293

307

276

810

2,650

1,240

829

670

2 , 230

15 , 500

§ , 28i*

5,370

3,650

-

49,580

1,653

3.22

3.53

Dec.

2,470

1,880

1,570

1,470

4,260

3,890

2,280

1,820

7,900

7,600

4,120

4,660

3,980

2,740

2,080

*1,690

1,430

1,280

1, 120

880

804

763

715

680

530

515

465

430

400

140

455

65,377

2,109

4.10

4.73

Jan.

440

400

380

360

345

335

320

305

300

290

270

270

260 JBB320

425

495

465

*405

390

380

375

370

365

355

640

BOLT

550

490

460

430

12,055

389

0.757

0.87

Feb.

420

405

405

400

507J

405

415

2,500

1,990

1,640

1,420

1,200

1,080

970

*950

915

880

845

810

770

745

725

755

795

770

715

670

P2G

_

-

24,615

879

1.71

1.78

Mar.

605

600

585

570

565

560

550

545

BTF

545

565

708

1,050

1 , 120

2 , 300

*2,750

2,280

2,010

1,870

2 , 260

3,290

2,520

1,840

1,550

1,380

1,280

1,130

1,170

1,400

2,120

3,610

43,873

1,415

2 .75

3.17

Apr.

7,070

6,110

10,900

18 , 300

8,840

5,700

5,440

5,220

7,910

7,740

6 , 750

5,720

5,370

5 , 330

4,580

4,410

3,440

2,800

2,410

2,350

2,090

1,870

3,070

4,320

3,000

6,050

5,170

3,440

3,200

3,380

-

161,380

5,399

10.50

11.71

May

2 , 540

2,050

1,820

3 , 900

1,300

1,180

1,160

1,130

1,070

1,030

934

916

1,070

990

83 8

779

846

1,180

961

795

700

763

1,140

1,060

1,120

307

692 5B5"

2,080

1,310

970

37,196

1,200

2.33

2.69

June

771

BITS"

558

501

466

449

455

478

423

374

346

324

307

288

264

284

328

383

374

324

E80

261

225

222

272

254

232

209

206

202

-

10,686

356

0.693

0.77

July

196

193

199

182

184

560

678

433

307

268

225

307

1,010

662

418

337

420

330

400

630

480

360

310

250

220

130

180

160

144

170

150

10,553

340

0.661

0.76

Aug.

160

170

150

186

250

200

170

150

136

126

124

110

114

100 TUB"

104

110

124

140

160

190

230

320

210

180

160

350

560

3BU

280

240

5,990

193

0.375

0.43

Sept.

540

480

410

360

330

310

600

760 6TO~

480

350

290

260

240

230

250

*257

239

199

173

165

156

154

146

TW

159

156

184

206

202

-

3,054

3D2

0.588

0.66

Calendar year 1950: Max 16,70O Min 62 Mean 1,038 Cfsm 2.02 In. 27.40

Water year 1350-51: Max 18,300 Min 62 Mean 1,198 Cfsm E .35 In. 31.63

Peak discharge (base, 6,OOP gfs).--Nov. 27 (9 a.m.) 17,500 cfs (11.70 ft); Dec. 5 (6 p.m.) 6,640 

cfs 17.72 ft); Dec. 9 (3 p.m.) 11,200 cfs (9.48 fr); Apr. 4 (8 a.m.) 20,400 cfs (l2.68 ft); Apr. 9 

(10 a.m.) 9,560 cfs (8.88 ft); Apr. 26 (10 p.m.) 7,800 cfs (8.21 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 27 to Mar. 11. No gage-height record 

July 17 fo Sept. 16; discharge computed on basis of records for nearby stations.

288890 O - 54 - 5
58 KENWEBEC RIVER BASIN

Sebasticook River near Pittsfield, Maine

Location. Lat 44°42'55", long. 69°24'55", on right bank if miles upstream from Twentynvemile Stream and 4 miles south of Pittsfield, Somerset County.

Drainage area. 598 sq mi.

Records available. October 1928 to September 1951.

Gage. Water-stage recorder. Datum of gage is 133.9 ft above mean sea level, datum of T929.

Average discharge. 22 years (1929-51), 893 cfs.

Extremes. Maximum discharge during year, 7,800 cfs Apr. 6 (gage height, 9.03 ft); mini-

 mum, 30 cfs Oct. 1, 28, 29.

1928-51: Maximum discharge, 14,400 cfs Mar. 22, 1936 (gage height, 13.18 ft); minimum, 2.9 cfs Dec. 30, 1941 (gage height, 0.40 ft); minimum daily, 4.8 cfs Dec. 13, 

1941.

Remarks. Records excellent except those for days of fragmentary gage heights, which are 

good, and those for periods of no gage-height record, which are fair. Considerable 

diurnal fluctuation caused by powerplant above station. Plow partly regulated by 

powerplants above station and by Great Moose and Sebasticook Lakes and Plymouth Pond 

(combined capacity, about 2,345,000,000 cu ft).

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

and discharge, In cubic feet per second)

1.4,

1.5

1.6 

1.8 

2.0 

2.2

113

162

2.4 

2.6 

2.8 

3.1 

3.5 

4.0

226

307

398

555

825

1,250

5.0 

6.0 

7.0 

8.0 

9.0

2,300

3,480

4,760

6,210

7,760

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.

Oct.

30

15?

196

184

77

160

108

30

170

166

102

154

108

150

73

142

196 -T7

100

126

108

94 

100

100

110

102

89

30

30

116

110

3,502

113

-

-

Nov.

108

49

9T

66

108

126

120

180

200

265

89

98

250

210

178

174

198

114

114

240

285

194 

375

*435

640

940

1,300

2,000

2,900

f4,110

-

16,160

539

-

-

Dec.

4,590

4,630

4,150

3,710

3,480

3,580

3,780

3,720

3,750

3,900

4,200

4,510

4,890

4,980

4,760

4,330

*3,700

3,180

2,640

2,210

1,730

1,440 

1,240

1,070

1,120

985

961

873

765

660

571

90,208

2,910

-

-

Jan.

715

694

628

55T

758

758

722

818

865

905

857

674

715

833

772

750

750

729

736

667

680

758 

736

795

1,140

,230

,240

,190

,190

,100

,340

26,399

852

-

-

Feb.

1,470

1,150

1,160

1,020

994

905

772

1,550"

1,990

2,160

2,210

2,040

1,820

1,640

1,430

*1,280

1,120

1,030

985

929

905

,120 

,530

,620

,640

,630

,670

,660

_

-

-

39,500

1,411

-

-

Mar.

,530

,450

,270

,230

,200

1,050

969

969

905

795

765 B25"

905

1,050

1,420

2,110

2,400

2,640

2,740

2,740

3,040

3,370 

3,480

3,540

3,130

2,920

2,630

2,340

2,120

1,940

2,060

59,333

1,914

-

-

Apr.

2,320

2,77O

3,610

5,400

7,110

7,710

7,4SO

6,900

*6,350

6,300

6,500

6,700

6,900

6,300

5,500

5,300

4,900

4,700

4,500

4,100

3,800

3,700 

3,600

3,600

3,700

3,900

4,100

4,400

4,400

4,200

-

150,730

5,024

-

-

May

4,100

3,800

3,600

3,500

3,600

3,600

3,400

3,000

2,200

1,800

1,500

1,300

1,250

1,200

1,150

1,150

1,100

1,100

1,200

1,100

1,080

1,060 

1,100

1,200

1,160

1,100

1,100

1,100

1,200

1,200

1,300

57,250

1,847

-

-

June

1,250

1,200

1,100

1,000

960

840

680

580

590

580

540

500

460

420

380

350

320

310

290

270

360

355 

290

295

340

365

355

360

350

340

-

16,030

534

-

-

July

174

330

138

W

330

345

330

310

355

300

300

360

385

385

360

340

375

370

375

380

670

570 

665

490

355

360

370

365

385

*f410

260

11,404

368

-

-

Aug.

380

410

410

400

400

300

260

270

305

370

385

280

280

255

250

340

420

3~2TT

152 550"

330

335 

405

405

335

178

310

250

295

345

350

9,945

321

-

-

Sept.

415

420

405

205

245

280

360

420

190

455

300

295

280

390

156

162

355

275

225

275

375

152 

126

215

138

245

315

330

166

34

-

8,204

273

-

-

Calendar year 1950: Max 6,810 Mln 18 Mean 994 Cfsm 1.66 In. 22.58

Water year 1950-51: Max 7,710 Mln 30 Mean 1,339 Cfsm 2.24 In. 30.41

- Discharge measurement made on this day. 

Note, No gage-height record Oct. 1 to Nov. 29, Apr. 8 to July 29; discharge computed on basis of 

records from powerplant upstream.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
KENNEBEC RIVER BASIN 59 

Cobbosseecontee Stream at Gardiner, Maine

Location Lat 44 0 13'15 M , long. 69°47'25", at dam of Gardiner Water Power Co. in Gardiner, 

Kenffebpc County, 1.2 miles upstream from mouth.

Drainage area.--217 sq mi (revised).

Records available.--June 1890 to September 1951.

Gage. Staff gages in pond above dam and in tailrace of powerplant. Altitude of pond 

gage is 130 ft (from topographic map).

Average discharge.--61 years, 322 cfs.

Extremes. --Maximum daily discharge during year, 2, WO cfs Apr. 5.

 1590-51: Maximum discharge, 5,020 cfs Mar. 21, 1936 (elevation, 139.4 ft above 

mean sea level).

Remarks. Discharge is sum of flow over dam, through gates and water wheels (computed on 

oasis of coefficients and experiments), and leakage. Flow regulated by Cobbosseecontee 

Lake (surface area, 8.5 sq mi) and several other lakes above station.

Cooperation. Records of daily discharge furnished by S. D. Warren 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

Cf sm

In.

Oct.

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

4,960

160

-

-

Nov.

160 ISO"

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

185

210 STO~

210

210

-

5,025

168

-

-

Dec.

210

2Iff

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

210

110

160

210

210

210

210

210

6,360

205

-

-

Jan.

210 5TO"

220

230

230

240

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

250

260

265 555"

260

7,640

246

-

-

Feb.

255

255

255

255

255

255

250

5ZF

600

BW

575

540

520

505

485

465

455

445

445

445

445

445

475

520

530

520

510

480

_

-

-

12,210

436

-

-

Mar.

435

430

430

420

410

405

395

395

395

395

390 350~

415

430

1,030

1,640

1,740

1,780

1,680

1,620

1,810

2,000

1,940

1,870

1,820

1,760

1,710

1,640

1,560

1,380

1,100

33,815

1,091

-

-

Apr.

1,420

1,900

1,900

2,260

2,770

2,740

2,490

2,450

2,360

2,280

2,280

2,240

2,200

2,080

2,100

2,080

2,020

1,640

1,140

965

960

960

870

795

810

755" 750

815

835

850

-

49,715

1,657

-

-

May

825 755"

760

750

730

700

670

670

655

545

375

290

275

250

250

270

270

270

260

250

250

250

250

250

250

240

230

53TT

230

230

230

12,490

403

-

-

June

230

2315"

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

230

225

215

205

195

190

-

6,780

226

-

-

July

190 I5o~

190

190

190

190

190

190

190

190

190

190

190

190

190

190

190

190

190

190

190

190

190

220

250

265

285

290 2~5o"

270

250

6,490

209

-

"

Aug.

250

250

250

250

250

250

250

250

250

240

230

220

210 5TO~

210

210

210

210

210

210

210

210

250

290

5W

290

290

290

290

290

290

7,610

245

-

~

Sept.

230

5T35"

120

5T35"

290

290

290

290

290

290

290

290

280

270

270

270

270

270

270

280

290

290

280

270

270

270

270

270

270

270

-

8,070

269

-

~

Calendar year 1950: Max 1,830 Min 10 Mean 267 Cfsm - In.

Water year 1950-51: Max 2,770 Min 110 Mean 442 Cfsm - In. -
KENNEBEC RIVER BASIN

Smaller reservoirs in Kennebec River basin, Maine

rassua Lake on Moc f Rockwood, completed in 1928, for power,

nas usaDle capacity of 8,560,000,000 cu ft between gage heights 43.0 and 73.0 ft. Gage

First Roach Pond on Roach River, at Kokadjo, used for power, has usable capacity of

by Kennebec Water power Co.

Moyie Pond on Moxie Stream, 4-i miles east cf The Forks, used for power, has usable capaciy or b40,000,000 cu ft between gage heights C.O and 14.0 ft. Gage-height record furnished by Kennebec Water- power Co.

Flagstaff Lake on Dead River, three-quarters of mile upstream from Black Brook, in T.

j, K. <i, completed in 1950, for power, has usable capacity of 12,050,000,000 cu ft

;tween elevations 1,110 and 1.14B ft Record of elevations furnished by Kennebec

Dead River Pond on Dead River, 15 miles upstream from The Forks, completed in 1905, for

log-driving, has usable capacity of 225,000,000 cu ft between gage heights 3.5 and

Gage-height record lurnished by Kennebec Water Power Co.

Spencer Lake on Little Spencer Stream, 4 miles upstream from mouth, in T

ror power, has usable capacity of 639,000,000 cu ft between gage heights 3.5 ana 12.U

ft. Gage-height record furnished by Kennebec Water Power Co.

Wyman Pond on Kennebec River, 1-j miles upstream from Bingham, completed in 1930, for

apacity of £,630,000,000 cu ft in top 20 ft of pond (total capacity

of pond, 9,080,000,000 cu ft). Gage-height record furnished by Central Maine Power Co.

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

Date

Nov . 30 ...................

Calendar year 1950 ......

Jan. 31. ..................

Water year 1950-51 ......

Date

Oct. 31. ..................

Nov. 30. ..................

Calendar year 1950......

Jan. 31 ...................

Sept .30. ..................

Water year 1950-51 ......

Qage 

height 

(feet)

-

-

-

-

Brassua Lakel

Contents 

(millions 

of cubic 

feet)

-

y 540

-

First Roach Po

-

9' 8

-

Change in 

contents 

during 

month 

(m.c.f.)

-721

+6,719

-761

+706

lit

+214

+13

S

Qage 

height 

(feet)

*4.0

-

_

9.Z

-

-

*8 0

*14 5

-

ec-'nd Roach PL

Content s 

(millions 

of cubic 

feet)

0

57

-

0

216

194

-

Moxie Pondt

-

-

ndt

Change in 

contents 

during 

month 

(m.c.f.)

0

+57

+94

-94

+28

-37

-19

+107

+345

'75

-

+13' i

+153

* Approximate only.

t Gage height and contents at 7 a.m. first day Df fDllowin
KENNEBEC RIVER BASIH

Monthly gage height and contents, of smaller reservoirs in Kennebec River ba 

water year October 1950 to September 1951 Continued

Maine,

Date

Calendar year 1950 ......

Feb. 23. ..................

Mar . 31 ...................

June 30 ...................

Sept .30. ..................

Date

Calendar year 1950......

Feb . 28 ..................

May 31 ...................

June 30 ... ...

Aug. 31. ................ .

Water year 1950-51 ......

Flagstaff Laket

Elevation 

(feet)

1,137.8 

1,134.4

1,141.6 

1,144.2

-

1,139.5 

1,137.0 

1,136.4 

1,144.5 

1,144.8 

1,143.6 

1,140.1 

1,141.0 

1,139.4

-

Contents 

(millions 

of cubic 

feet)

6,525 

4,840 

8,823 

10,655

-

7,494

6,100 

5,795 

10,880 

11,108 

10,211 

7,862

a, 430

7,434

-

Change in 

contents 

during 

month 

(m.c.f.)

-1,685 

+3,933 

+1,832

+10,071

-3,161 

-1,394 

-305 

+5,085 

+228 

-751 

-2,495 

+566 

-936

+909

Spencer Laket

8.3 

*8.7 

*9.0

-

*4.5 

*14.6 

*12.0 

*l£.u 

*10.3 

10.3 

*10.4

"

337

368 

391

0

-

o

70 

831 

639 

639 

495 

495 

503

-

+31 

+23 

-391

-38

0 

0 

+70 

+811 

-E42 

0 

-144

+ 8

+166

Dead River Pondt

Gage 

height 

(feet)

3.3

-

*2.0 

5.0

3.5

-

Contents 

(millions 

of cubic 

feet)

14 

0 

0 

0

-

0 

0 

0 

95 

40 

0 

0 

0 

18

-

Change in

during 

month 

(m.c.f.)

-14 

0 

0

0

0 

0 

0 

+95 

-55 

-40 

0 

0 

+18

+4

Wyman Pond*

483.4 

483.3 

484.8 

484.0

-

481.8 

482.2 

481.9 

484.9 

485.0 

481.8 

483.6 

483.9 

483 . 9

-

8,850 

8,830 

9,050 

8,930

-

8,620 

8,630 

8,640 

9,060 

9,080 

8,620 

8,870 

8,920 

8,920

-

-20 

+220 

-120

-30

-310 

+60 

-40 

+ 420

-460 

+250 

+50 

0

+70

* Approximate only.

t Gage height and contents at 7 a

* Gage height and contents at 12

first day of following
62 ANDROSCOGGIN RIVER BASIN

Diamond River near Wentworth Location, N. H.

Location. tat 44°52'40", long. 71 C 03'25", on left bank 0.7 mile above mouth and if miles 

nortn of Wentworth Location, Coos County.

Drainage area.--153 sq mi.

Records available. July 1941 to September 1951.

Gage.--Water-stage recorder. Altitude of gage 1,275 ft (from topographic map).

Average discharge. 10 years, 345 cfs.

Extremes. Maximum discharge during year, 4,020 cfs Nov. 26 (gage height, 7.77 ft); mini- 

 mum, 36 cfs Sept. 22, 23 (gage height, 1.33 ft).

1941-51: Maximum discharge, 8,630 cfs June 16, 1943 (gage height, 10.66 ft), from

rating curve extended above 3,000 cfs; minimum, 6.8 cfs Aug. 27, 28, 1949 (gage height,

0.81 ft).

Remarks. Records excellent except those for periods of ice effect, which are fair.

Rating table, water year 195O-51, except periods of ice effect (gage 

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

1.2 

1.4 

1.6

2.0 

2.5 

3.0 

3.5

117

213

350

530

4.0 

5.0 

6.0 

7.2

740

1,340

2,140

3,350

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

Cfsm

In.

Oct.

65

59

53

51

51

51

46

45¥S~

47

119

151

350

3413

220

161

137

131

159

169

198

157

137

135

158

335

234 

181

173

202

189

4,550

147

0.961

1.11

Nov.

161

147

173

213

1,010

780

437

330

280

258

238

211

193

177

155

167

177

200

175

176

990

644

370

305

264

1,860

3,300 

S, ISO

2,040

1,000

-

18,581

619

4.05

4.52

Dec.

656

496

422

455

2,580

1,100

610

496

995

1,020

631

553

481

367

327

294

*258

206

195

188

192

180

178

176

172

170

168 

162

160 TED"

160

14,008

452

2.95

3.40

Jan.

160

160

160

168

240

215

198

188

162

142

130

120

110

100

97

118

114

112

106

104

102

99

98

*99

93

90

85 

82

79

76

74

3,881

125

0.817

0.94

Feb.

72

72

71

68

68

66

65

7T

79

146

198 IBS'

156

146

132

*126

120

116

114

112

110

102

96

93

92

89

89 

86

_

_

-

2,923

104

0.680

0.71

Mar.

88

89

89

89

89

88

88

88

88

86_

89

89

89

90

94

102

102

100

100

99

99

99

97

97

94

92

94 

96

110

350

1,130

4,194

135

0.882

1.02

Apr.

1,200

1,010

1,010

1,920

1,520

*890

830

939

1,600

2,420

2,610

2,390

2,050

1,580

1,380

1,200

934

745

635

618

550

515

1,T5TJ

1,420

1,310

3,170

2,600 

2,170

3,010

3,300

-

46,676

1,556

10.17

11.35

May

2,280

1,830

1,450

917

790

835

884

917

895

800

581

534

581

496

470

526

1,210

1,170

623

492

448

534

466

408

350

324

294 52"2~

455

546

416

23,044

743

4.86

5.60

June

314

2BT

234

206

234

198

227

202

163

140

120

112

102

97

101

102

101

94

84

74

65

58

BE

173

142

211

116 

88

77

97

-

4,279

143

0.935

1.04

July

142

175

119

84

104

294

258

147

99

79

65 73B~

59S

288

173

140

218

157

460

631

302

204

189

147

117

102

90 

84

90

90

82

6,463

208

1.36

1.57

Aug.

93

77

65

230

2T>2~

119

88

79

94

85

69

60

54

51

51

50

ST

72

85

65

53

163

171

146

106

86

86 

122

86

64

56

2,879

92.9

0.607

0.70

Sept.

110

127

86

99

97

76

131

187

I3TJ

89

*72

65

59

52

50

52

51

44

41

40

39

37 *56~

108

81

130

117 

125

105

82

-

2,538

84.6

0.553

0.62

Calendar year 1950: Max 4,410 Min 28 Mean 374 Cfsm 2.44 In. 33.16

Water year 1950-51: Max 3,300 Min 37 Mean 367 Cfsm 2.40 In'. 33.58

Peak discharge (base, 5,600 cfs).--Nov. 26 (6 p.m.) 4,020 cfs (7.77 ft); Apr. 29 (8 p.m.) 3,820 

cfs (7.60 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 20 to Apr. 5, Apr. 9-11.
ANDROSCOGGIN RIVER BASIN

Androscoggin River at Errol , N. H.

Location. --Lat 44°46'55", long. 71°07'45", on right bank 0.4 mile downstream from Errol 

Dam, 0.4 mile northeast of Errol, Coos County, and 0.6 mile upstream from Clear Stream.

Drainage area. --1. 045 sq mi.

Records available. January 1905 to September 1922, December 1943 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,227.3 ft above mean sea level, datum of 

1929. Prior to Sept. 30, 1922, movable rod gage at Errol Dam at datum 5.0 ft higher.

Average discharge .--24 years (1905-22, 1944-51), 1,820 cfs (unadjusted).

Extremes. Maximum discharge during year, 6,220 cfs May 6 (gage height, 5.46 ft); minimum 

daily, 246 cfe Nov. 27, 28.

1905-22, 1943-51: Maximum daily discharge, 12,500 cfs June 21, 1917; minimum daily, 

leakage only at various times when gates in dam were closed.

Remarks .--Records excellent except those for periods of backwater from pulpwood, which are 

good. Plow regulated by Kennebago, Rangeley, Mooselookmeguntic , Richardson, Umbagog, 

and Asiscohos Lakes (see pp. 71,72).

Cooperation. Water-stage recorder inspected by employee of Union Water Power Co. 

Revisions. --W 1001: Drainage area.

0.4 

.5 

.6 

.7 

.8 

.9

age height, In f

228

265

504

345

589

436

1950-51,

1.0

1.2

1.4

1.6

1.8

2.O

except periods

485

591

716

860

1,02O

1,200

of backwater

2.5

3.0

3.6

4.6

5.5

from pulpwood 

second)

1,760

2,420

3,260

4,760

6,500

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

Total

Mean

Oct.

1,930

1,930

1,930

1,940

1,960

1,960

1,910

1,940

1,890

1,980

1,850

1,790

1,660

1,560

1,440

1,710

1,800

1,800

1,840

1,810

1,700

1,630

1,620

1,590

1,530

1,480

1,480

1,480

1,470

1,490

1,520

53,620

1,730

Nov.

1,520

1,490

1,460

1,420

1,120

920

1,720

1,600

1,410

1,320

1,280

1,330

1,390

1,390

1,400

1,420

1,410

1,390

1,390

1,370

835

745

1,190

1,340

1,290

610

246

246

1,910

5.070

-

33,232

1,308

Dee.

1,820

1,410

1,500

1,510

2,450

2,650

1,950

2,010

2,300

2,410

2,340

1,870

1,420

995

1,210

1,770

*2,110

2,350

2,500

2,620

2,550

2,480

2,380

2,340

2,350

2,580

2,700

2,640

2,570

2,520

2,460

67,055

2,163

Jan.

2,460

2,480

2,490

2,460

2,430

2,430

2,460

2,520

2,520

2,550

2,410

2,630

2,410

2.510

2,660

2,590

2,520

2,480

2,490

2,500

2,520

2,62O

2,710

2 , 600

2,460

2,430

2,460

2,560

2,630

2,670

Z, 770

78,230

2,524

Feb.

2,660

2,500

2,390

2,310

2,250

2,280

2,240

2,150

2,320

2,310

2,220

2,120

2,080

2,110

2,230

2,280

2,270

2,190

2,120

2,060

2,140

2,220

2,220

2,220

2,270

2,350

2,380

2,390

-

-

~

£3,280

2,260

Mar.

2.560

2,340

2,310

2,310

2,340

2,360

2,340

2,310

2,310

2,290

2,340

2,320

2,200

2,190

2,240

2,230

2,190

2,180

2,140

2,080

2,070

2,120

2,110

2,100

2,080

2,070

2,120

2,060

2,020

1,730

1.070

66,930

2,159

Apr.

9 CO

1,140

1 , 200

1,310

1,460

*1,560

2,100

2,360

3,040

4,060

4,970

5,260

4,990

4,360

3,540

3,300

2,560

1,970

1,960

1,960

1,940

2,030

2,060

1,380

1,330

3,700

5,250

4,190

4,070

4,650

"

84,600

2,820

May

5,330

5,400

5,960

6,130

6,190

6,090

4,950

3,860

3,560

5,220

3,390

5,600

3,590

3,380

5,010

2,770

2,860

5,650

5,820

5,820

4,090

4,420

4,420

4,180

3,060

2,310

2,250

2,430

2,430

2,450

2,450

119,050

3,840

June

2,490

2,490

2,450

2,460

2,500

2,500

2,490

2,460

2,350

2,380

2,380

2,550

2,320

2,250

2,200

2,100

2,050

2,060

2,060

2,050

2,020

2,020

1,900

1,880

1,860

1,790

1,800

1,770

1,730

1,720

"

64,880

2,163

July

1,790

1,760

1,760

1,810

1,820

1,620

1,630

1,640

1,700

1,680

1,640

1,560

970

1,490

1,640

1,610

1,550

1,480

1,370

1,2OO

1,320

1,610

1,620

1,620

1,640

1,640

1,660

1,720

1,720

1,800

1,770

49,840

1,608

Aug.

1,860

1,840

1,860

1.700

1,760

1,790

1,790

1,820

1,840

1,840

1,860

1,890

1.920

1,860

1,840

1,860

1,860

1,810

1,790

1,820

1,850

1,820

1,820

1,820

1,800

1,810

1,790

1,810

1,740

1,720

1,850

56 , 440

1,821

Sept.

1,810

1,790

,770

,790

,800

,850

,790

,720

,800

,860

* ,960

,950

,960

,920

,890

,850

,800

,810

,810

,800

,740

,640

.490

,520

,620

,570

,580

,770

,520

,660

"

52,840

1,761

Mean 

Cf am 

In.

444 

0.425 

0.49

3,77£ 

3.61 

4.0;

Calendar year 1950: 

Water year 1950-51:

3,179 

3.04 

3.50

517 

0.495 

0.57

931 

0.891 

0.93

884 

0.846 

0.98

8,999

8.61 

9.61

4,509 

4.31 

4.97

Observed

Max 4,620 Min 246 Mean 1,822 

Max 6,190 Min 246 Mean 2,180

869 

0.832 

0.93

1,017 

0.973 

1.12

519 

0.497 

0.57

495 

0.474

0.53

Adjusted

Mean 2,167 Cfsm 2.07 In. 28.14 

Mean 2,173 Cfsrr 2.08 In. 28.23
34 ANDR03COGGIH RIVER BACIN

Androscoggin River near Gorham, N. H.

Location.--Lat 44°26'30", long. 71°11'15" J on right bank at Pulsifer Rips, 2 miles downstream from Dead River and 4 miles upstream from Gorham, Coos County.

Drainage area.--1,363 sq mi.

Records available.--October 1913 to September 192£ (published as "at Berlin"), March 1929 

to September 1951.

Gage.--Water-stage recorder. Datum of gage is 832.9 It above mean sea level, datum of 

1929. Prior to Sept. 30, 1922, staff gages showing head and tailwater elevations at 

site 3 miles upstream at different datum.

Average discharge.--31 years, 2,410 cfs (unadjusted).

Extremes.--Maximum discharge during year, 9,980 cfs Apr. 12 (gage height, 7.59 ft); minimum, 1,200 cfs July 11 (gage height, 2.89 ft); minimum daily, 1,580 cfs Nov. 23.

1913-22; 1929-51: Maximum daily discharge, 80,000 cfs June 18, 1917; minimum, 456 

cfs Aug. 10, 1947 (gage height, 1.74 ft), from rating curve extended below 1,400 cfs; 

minimum daily, 795 cfs Mar. 15, 1948.

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

good. Flow regulated by powerplant above station and by Rangeley-Umbagog series of 

lakes and Kennebago and'Aziscohos Lakes (see pp. 71,72).

Cooperation.--Water-stage recorder inspected by employee of Brown Co. 

Revisions.--W 1001: Drainage area.

Rating table, water year 1350-51 (gage height, in feet, and 

discharge, in cubic feet per second)

l,buu 

1,600 

1,820

5.2 

6.4

;e, in ruble feet per second, water year October 1950 to September 1951

Sept.

1,9*' 

1,92L 

1,93L 

2,04C

2,77C 

2,74L 

2,67C 

2.64C 

2,64C

1,930

1,920

1,950

1,960

1,940

1,330

1,980

2,090

1^940

1,94'J 

2,060 

2,090 

2,040 

1,960

1,920

1,980

2,100

1,990

1,890

1,860

Total 

Meai 

Cfsi 

In.

59.3HO 

1,915 4,721

Adjusted for change In contents of Hangeley ctiain of lakes and Asiscohos Reservoir

Mean

Cfsm 

In.

629 

0.461 

0.53

4,836 

3.5E 

3.96

Calendar year 1950; 

Water year 1950-51;

4,038 

2.96 

3.41

679 

0.498 

0.57

1,281 

0.940 

0.98

1,393 

1.02 

1.18

11,950 

8.77 

9.78

5,390 

3.95 

4.55

Observed

Max 9,220 Mln 1,400 Mean 2,388 

Max 9,780 Mln 1,580 Mean 2,809

972 

0.713 

0.80

1,249 

0.916 

1.06

663 

0.486 

0.56

595 

0.437 

O.49

Adjusted

Mean 2,733 Cfsm 2.01 In. 27.21 

Mean 2,802 Cfsm 2.06 In. 27.87

* Discharge measurement made on this day.

Note.--No gage-height record Dec. 29 to Jan. 22; discharge computed on basis of powerplant
ANDROSCOGGIN RIVER BASIN 

Androscoggin River at Rumf'ord, Maine

Location. --Lat 44°32'45", long. 70°32'35", on left "bank at tipper powerplant of Rumford 

Falls Power Co. at Rumford, Oxford County, 0.8 mile upstream from Swift River.

Drainage area.--2,067 sq mi.

Records available.--May 1892 to September 1903 and October 1904 to September 1951 in 

reports or Geological Survey. October 1903 to September 1904 (monthly discharges 

only) in first annual report of Maine State Water Storage Commission.

Gage.--Gages in pond above dam and in tailrace.

Average discharge.--55 years (1896-1951), 3,586 cfs (unadjusted).

Extremes.--Maximum daily discharge during year, 27,800 cfs Nov. 27; minimum daily, 

1,810 cfs Sept. 25.

1392-1951: Maximum discharge, 74,000 cfs Mar. 20, 1936.

Remarks . --Discharge computer! from flow over upper dam and through wheels. Flow regulated by Rangeley-Umbagog series of lakes and Kennebago and Aziscohos Lakes (see 

PP. 71,72).

Cooperation.--Records furnished by Rumford Falls Power Co. 

Revisions.--W 1001: Drainage area.

Discharge, In cubic feet per second, water year October 1950 to September 1351

He Jan. Feb. far. Apr. May June July

5,420

5,290

3,460

5,690

3,750

5,620

5,480

5,270

5,250

5,550

5,580

5,570

5,510

5,250

5,140

5,240

5,260

5,240

5,140

5,140

5,437

105,270

3,531

117,100

3,777 13,510

87,130

2,904

Adjusted for change In contents of Rangeley chain of lakes and Aziseohos Reservoir

Mean 

Cfsm 

In.

883 

0.427 

0.49

7,905 

5.82 

4.26

Calendar year 1950 : 

Water year 1950-51 :

7,508

3 54

4.08

1 , 32 4 

n P41

0 . 7 4

E,654

1.33

2 , 502

1 . 40

19,6J'i 

9 53

10 . 65

7, y04

4.40

Observed

Max 53,400 Min 1,43,1 Mean 3,888 

Max 27,800 Min 1,810 Mean 4,625

1,610 

0.779 

0 . 87

1,849 

0.895

1.03

962 

0.465

0.54

1,010 

0.489

0.55

Adjusted

Mean 4,255 Cfsm 2.05 In. 27.80 

Mean 4,618 Cfsn 2.25 In. 50.52
66 ANIiROSCOGGIN RIVER BASIN

Swift River near Roxbury, Maine

Location.--Lat 44°38'30", long. 70°35'15", on left bank 2j miles downstream from Roxbury, Oxford County, and 6 miles upstream from mouth.

Drainage area.--95.8 sq mi.

Records available.--June 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 615.7 ft above mean sea level, datum of T929.

Average discharge.--22 years, 190 cfs.

Extremes.--Maximum discharge during year, 11,400 cfs Nov. 26 (gage height, 10.76 ft); 

minimum, 15 cfs Oct. 1, 2.

1929-51: Maximum discharge, 13,000 cfs Sept. 17, 1932 (gage height, 12.58 ft), 

from rating curve extended above 4,000 cfs; minimum, 3.8 cfs Sept. 16, 17, 1948 (gage 

height, 0.93 ft).

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

which are fair.

Revisions (water years).--W 801: 1934(m). W 1031: Drainage area.

Rating tables, wate year 1950-51, except periods of Ice effect (gage height, 

discharge, in cubic feet per second)

Oct. 1 to Nov. 26 27 to Sept. 30

120

168

226

291

455

3.5

4.0 

5.0 

6.0 

7.3

717

1,030

1,890

2,980

4,750

3.5 

4.0 

5.0

304

470

730

1,060

1, 890

2,980

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

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

15

15

16

16

17

17

18

20

45

75

85

100

255

111

69

49

42

39

38

36

34

32

32

39

45

113

71

68

56

81

69

1,718

55.4

0.578

0.68

Nov.

56

50

49

60

680

368

182

138

118

107

94

83

74

68

63

66

77

79

69

68

725

385

211

160

136

4,690

2,370

1,370

945

538

-

14,079

469

4.90

5.47

Dec.

364

279

241

230

1,570

578

349

290

1,740

935

594

589

456

319

251

218

188

164

190

138

126

1O6

96

86

72

68

55

49

44

50

54

10,489

338

3.53

4.07

Jan.

53

68

78

116

138

112

99

92

92

90

88

83

78

84

110

136

112

90

81

*66

68

66

61

78

202

149

86

69

65

56

55

2,821

91.0

0.950

1.10

Feb.

55

58

61

58

58

55

55

920

754

558

456

406

275

196

172

144

126

116

110

106

99

94

90

106

94

84

83

83

-

-

-

5,472

195

2.04

2.12

Mar.

84

84

83

79

76

76

74

84

90

97

99

99

100

106

106

112

*113

113

111

112

132

116

112

103

97

105

110

107

164

341

525

3,808

123

1.28

1.48

Apr.

702

713

2,760

2,480

*990

784

867

976

2,080

2,020

1,720

1,360

1,300

1,000

920

835

642

528

470

437

423

419

1,080

934

830

2,100

1,140

1,050

1,420

1,250

34,230

1,141

11.91

13.28

May

835

736

610

432

389

406

410

419

419

384

293

330

368

275

268

337

437

372

258

224

279

402

297

258

261

185

156

410

304

202

159

11,115

359

3.75

4.32

June

133

116

111

101

101

*83

111

94

71

62

55

53

47

44

54

66

69

126

71

51

42

36

50

101

68

59

44

40

*38

47

-

2,144

71.5

0.746

0.83

July

55

61

44

34

245

326

149

83

55

43

36

192

191

96

58

45

45

43

84

128

72

53

43

33

29

24

22

23

31

32

28

2,403

77.5

0.8O9

0.93

Aug.

41

34

27

54

49

32

24

24

27

24

19

17

18

17

19

19

23

37

38

25

27

96

58

41

33

26

235

105

55

36

32

1,312

42.3

0.442

0.51

Sept.

83

56

48

55

41

38

228

174

86

55

42

39

33

37

40

61

43

33

29

25

2_4

24

29

39

37

63

44

62

61

43

-

1,672

55.7

0.581

0.65

Calendar year 1950: Max 4,880 Min 14 Mean 226 Cfsm 2.36 In. 32.09

Water year 1950-51: Max 4,690 Min 15 Mean 250 Cfsm 2.61 In. 35.43

Peak discharge (base, 2,400 cfs). --Nov. 26 (3 p.m.) 11,400 cfs (10.76 ft); Dec. 5 (2 a.m.) 2,71O

cfs (5.77 ft); Apr. 3 (8:30 p.m.) 5,970 cfs (8.07 ft); Apr. 9 (9:30 a.m.) 2,510 cfs (5.60 ft); Apr.

26 (7 a.m.) 2,560 cfs (5.64 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Oct. 1-13, Dec. 19 to Jan. 19; discharge computed on basis of records 

for nearby stations. Stage-discharge relation affected by ice Jan. 23, 24, Feb. 7, 8, Feb. 16 to 

Mar. 10, Mar. 13-16, 20, 21, 23, 27.
AHDROSCOGGIH RIVER BASIN 

Nezinscot River at Turner Center, Maine

67

Location.--Lat 44°16'10", long. 70°13'50", on left bank 500 ft upstream from upper highway bridge at Turner Center, Androscoggin County, and 3 miles upstream from mouth.

Drainage area.--171 sq mi.

Records available.--August 1941 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 270 ft (from topographic map).

Average discharge.--10 years, 278 cfs.

Extremes.--Maximum discharge during year, 6,920 cfs Apr. 4 (gage height, 7.70 ft); minimum, 24 cfs Oct. 10 (gage height, 1.09 ft).

1941-51: Maximum discharge, that of Apr. 4, 1951; minimum, 16 cfs Oct. 1, 2, 1941, 

Sept. 13, 14, 1949; minimum gage height, 0.97 ft Sept. 13, 14, 1949.

Maximum discharge known, 9,340 cfs Mar. 21, 1936, at Turner (drainage area, 158 

sq mi).

Remarks.--Records excellent except those for periods of ice effect, backwater from deb'ris, 

or no gage-height record, 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)

1.1

1.2 

1.4 

1.6 

1.8

98

140

2.8 

3.4 

4.0

190

317

490

850

1,330

5.0 

6.0 

7 .0 

7 .4

2,390

3,750

5,470

6,280

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

Tota:

Mean

Cfsm

In.

Oct.

26

2526"

27

27

26

25

25

25

25

32

59

174

193

14?

110

91

80

73

73

63

57

55

57

60

63

65

65

61

60

58

1,948

62.8

0.367

0.42

Nov.

61

63

SI

60

ilz

227

224

177

142

127

112

98

89

82

78

75

77

78

78

75

215

bOO

490

313

245

b90

*2,640

2,060

1,320

920

-

11,589

386

2.26

2.52

Dec.

660

501

406

355

760

1,030

759

635

2,170

2,540

1,630

1,240

1,020

798

624

511

428

380

335

310

275

240

225

220

210

205

200

196

190

186

182

19,421

626

3.66

4.22

Jan.

178

174

172

178

190

180

174

164

158

ISO

148

148

150

160

172

160

154

150

148

146

146

140

136

136

220

330

305

280

260

235

*220

5,662

183

1.07

1.23

Feb.

220

220

220

210

205

198

2T5

bOO

1,330

1,180

850

685

525

440

395

355

315

305

305

*3C>5

295

290

290

290

290

290

280

2/5

_

-

-

11,378

406

2.37

2 .47

Mar.

270

270

260

245

240

230

230

225 225"

225

230

275

340

440

745

940

880

*835

765

1,030

1,590

1,480

990

759

642

583

490

501

589

798

1,480

18,802

607

3.55

4.09

Apr.

3,040

2,920

3,520

6,220

1,920

1,470

1 , 3 10

1,540

1,450

1,630

 1,350

1,210

1,330

1,200

1,020

871

733

642

624

538

466

69b

1,030

850

1,280

1,520

1 , 050

772

372

-

46,144

1,538

8.99

10.03

May

501

^28

380

347

351

347

340

328

310

292

278

328

3b3

325

281

245

224

239

230

210

185

20T

218

233

288

271

215

278

368

310

248

9,162

296

1.73

1.99

June

207

180

164

154

147

133

125

120

114

108

102

98

94

100

130

150

160

150

140

134

128

124

118

116

114

112

110

110

150

230

-

4,022

134

0.784

0.87

July

330

240

150

120

240

350

250

190

114

185

300

600

990 6-8-5

550

450

400

340

500

640

400

300

220

210

190

180

170

160

150

144

136

9,879'

319

1.87

2.16

Aug.

130

120

120

260

200

170

150

140

124

114

106

98

96

95

94

94

96

104

112

130

160

170

200

160

110

200

280 ISO140

130

124

4,407

142

0.830

0.96

Sept.

118

114

112

110

110

110

320 530-

180

150

130

*108

98

89 100"

204

210

180

147

125

108

102

96

93

89

94

93

104

102

89

-

3,915

130

0.76O

0.85

Calendar year 1950: Max 3,200 Min 24 Mean 279 Cfsm 1.63 In. 22.18

Water year 1950-51: Max 6,220 Min 25 Mean 401 Cfsm 2.35 In. 31.81

eak discharge (base. 1,700 efs).--Nov. 27 (4:30 p.m.) 3,250 cfs (5.66 ft); Dec. 10 (3 a.m.) 2, 

cfs (5.30 ft); Mar. 21 (11 p.m.) 1,720 cfs (4.40 ft); Apr. 4 (10:30 a.m.) 6,920 cfs (7.70 ft); Ap: 

10 (10 a.m.) 2,010 cfs (4.67 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 19 to Mar. 20, and by debris on control No' 

26-28. No gage-height record June 8 to July 12, July 15 to Sept. 11; discharge computed on basis 

records for nearby stations.
Little Androscoggin River near South Paris, Maine

Location.--Lat 44°17 I 05", long. 70°32'10", on right bank just upstream from Biscoe Falls, 

4f- miles upstream from South Paris, Oxford County.

Drainage area.--76.2 sq mi.

Records available.--September 1913 to April 1924, October 1931 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 394.5 ft above mean 

sea level, datum of 1929. Prior to Apr. 30, 1924, chain gage at same site and 

datum.

Average discharge.--30 years (1913-23, 1931-51), 136 cfs.

Extremes.--Maximum discharge during year, 3,660 cfs Apr. 3 (gage height, 10.20 ft); min-

 imum, 4.6 cfs Oct. 5 (gage height, 1.54 ft).

1913-24, 1931-51: Maximum discharge, 6,980 cfs Mar. 19, 1936 (gage height, 11.72 

ft), from rating curve extended above 2,800 cfs, verified by computation of flow over 

dam at Couth Paris; minimum, 1 cfs Aug. 16, 1914 (gage height, 0.7 ft).

Remarks. Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Slight diurnal fluctuation at low and medium flow by sawmills 

and gristmills above station.

Revisions.--W 726: Drainage area.

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

and discharge, in cubic feet per second)

1.5 3.8 2.0 18

1.6 5.8 2.3 34

1.7 8.0 2.6 57

1.8 11 3.0 95

1.9 14 3.5 IfaO

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.

Oct.

8.0

7.8

7 .6

5 .8

5.0

5.4

5 .8

b .0

6 .0

7 .6

24

56

110

64

43

35

32

29

28

25

26

22

20

23

26

28

26

24

24

27

26

783.0

25.3

0.332

0.38

Nov.

25

22

20

2 1

178

196

112

84

70

60

50

44

41

38

35

35

40

45

38

37

475

510

243

Ib2

127

1,420

1,770

360

719

4fa8

-

7,945

265

3.46

3.88

Dec.

325

251

E12

193

439

406

280

240

1,210

9/5

595

501

385

292

238

208

181

163

139

119

105

100

100

37

90

70

66

57

53

60

68

a, 2ia

265

3.48

4 . 0 1

Jan.

b8

66

69

76

91

82

79

77

71

66

67

68

65

63

70

82

73

70

66

65

66

62

59

102

264

223

162

122

102

84

69

2 ,749

88.7

1 . IB

1.34

Feb.

67

F4

86

78

73

70

88

945

650

260

164

152

143

144

140

136

130

130

128

128

126

135

168

135

122

116

119

110

_

_

-

4 , 832

173

2.27

2.36

Mar.

94

92

88

90

88

87

88

90

84

b9o

77

10T

160

165

202

228

221

226

210

288

459

343

243

193

174

165

148

168

253

419

U30

b,lb7

133

2.bl

3.01

Apr.

1,550

1,170

2,050

2,290

1,020

75U

719

690

935

1,040

*872

708

686

731

598

525

419

338

311

Jib

262

2L1

400

474

350

727

595

385

303

249

-

21,684

723

9.49

10.59

May

205 T76"

157

146

134

114

114

107

100

93

88

131

138

111

95

84

83

106

92

80

71

67

65

70

116

90

71

174

171

124

95

3,468

112

1.47

1.70

June

7463"

60

55

52

46

41

38

34

30

29

27

26

25

28

55

53

51

45

37

30

27

26

30

30

24

22

22

20

20

-

1,120

37.3

0 . 490

U.55

July

22

23

22

18

2T

47

35

28

24

20

35

270

450

202

112

75

70

58

108

121

77

58

47

34

28

24

22

23

32

28

26

2.163

69.8

0.9^6

i.oe

Aug.

23

22

20

34

29

22

18

16

17

17

17

16

16

15

14

13

2T?

24

23

18

16

5b

36

29

24

22

150

Too

67

49

39

982

31.7

0.416

0 . 48

Sept.

76

/6

83

79

58

53

196

212

TT9

83

63

*51

48

47

120

96

64

50

41

37

33

30

34

*31

30

43

35

43

43

35

-

2,009

66.9

0.878

0 . 98

Calendar year 195U : Max 2,410 Min 3.2 Mean 139 Cfsm 1.82 In. 24.84

Water year 1950-51: Max 2,29o Min 5.0 Mean 170 Cfsm 2.23 In. 30.34

26 :30 p.m.) 2,810 cfs (9.24 ft); Dec. 9 (5 p.n 

i.ra.) 1,660 cf .3 (1 ft); Apr. 3 (10 p.m.) 3,660 cfs (10.20 ft).

* Discharge measiirement made on this day. 

b Stage-discharge relation affected Ly ice.

Note.--No gage-height record Feb. 9-19, Sept. 13-23; discharge computed on b 

earby stations.

of records for
Little Androscoggin River near Auburn, Maine

Location.--Lat 44°03'50", long. 70°16'25", on right bank just upstream from highway 

bridge at Littlefields, 3 miles southwest of Auburn, Androscoggin bounty, and 3.6 

miles upstream from mouth.

Drainage area.--328 sq mi.

Records available.--October 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 215 ft (from topographic map).

Average discharge.--11 years, 506 cfs.

Extremes.--Maximurn discharge during year, 5,390 cfs Apr. 3 (gage height, 3.7C ft); minimum, 26 cfs Oct. 5, 6 (gage height, 1.20 ft).

1940-51: Maximum discharge, 5,800 cfs June 18, 1942 (gage height, 9.13 ft); minimum, 14 cfs Oct. 14, 22, 1949; minimum gage height, 1.07 ft Sept. 8, 1941. 

Maximum discharge known, 16,800 cfs Mar. 20, 1936, at mouth of river.

Remarks.--Records excellent except those for periods of fragmentary gage-height record, 

which are good, and those for periods of ice effect or no gage-height record, which 

are fair. Flow regulated by Pennesseewassee and Thompson Lakes (see p. 71 ) and 

several powerplants above station.

Rating table, water year 1950-51, except periods af ice effect (gage 

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

Discharge, in cubic feet pe =cond, 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

Oct.

60

77

65

54

28

30

49

52

54

70

119

126

146

126

117

113

108

104

102

104

100

100

110

137

180

137

121

142

116

170

169

3,186

103

Nov.

144

140

133

142

159

285

356

330

281

251

176

172

180

174

133

119

121

117

84

9B

270

525

677

626

453

890

2,110

3,050

2 610

1,9OO

-

16,706

557

Dec.

1,410

1,080

889

80b

998

1,130

1,070

930

2,430

2,780

3,010

2,640

2,220

1,850

1,450

1,210

974

878

806

711

682

649

562

436

337

423

444

407

395

391

305

34,283

1,106

Jan.

188

285

432

461

466

457

440

4bl

440

436

428

428

419

387

432

423

411

423

411

407

391

399

391

630

706

745

775 7T6"

696

635

571

14,890

480

Feb.

566

576

540

513

518

504

STiB"

1,680

bl,610

bl,620

1,260

398

907

872

775

706

649

607

*677

697

673

844

895

850

750

740

735

711

_

_

-

23,068

824

Mar.

b660

to 600

b560

500

540

535

584

603

566

478

461

644

668

755

1,540

,500

,440

,340

,E70

,650

2,110

*2,070

I,b40

1,380

1,180

1 , 090

938

872

90 1

1,020

1,960

32,055

1,O34

Apr.

fi.050

f 3 , 580

*f4,EOO

5,250

4,940

4,570

4,180

3,650

3,300

3,500

4,OOO

3,650

3,250

2,900

2,530

2,200

1,920

1,710

1 , bOO

1,490

1,360

1,280

1,170

1,080

1,010

1,950

1,640

1 , 400

1,300

1,200

-

79,160

2,639

May

1,010

 SOT)

750

700

680

60U

540

500

450

430

430

520

560

540

430

390

370

460

520

420

360

330

310

330

360

360

350

410

390

375

370

15,145

489

June

450

43t>

410

383

348

333

301

284

223

257

267

251

245

241

217

235

274

312

284

267

248

238

169

235

229

264

254

241

248

241

-

8,373

279

July

238

19O

82

57

9T>

188

177

197

235

226

188

275

760

962

SOT

660

548

470

465

548

478

415

395

364

326

294

277

255

326

337

326

11,150

360

Aug.

E85

140

140

110

T7T

270

202

197

205

202

146

202

257

226

194

185

191

110

137

194

188

197

185

217

191

191

379

461

496

4C7

323

7 , 005

226

Sept.

275

305

345

395

*367

333

391

436

478

43T

356

312

277

254

185

319

364

356

205

291

267

245

217

235

211

226

214

197

161

T59

-

8,848

295

Mean 

Cfsm 

In.

86.6 

0.2b4 

0.30

601 

1.83

Calendar year 1950: 

Watei> year 1950-51:

1,125 

3.43 

3.9E

423 

1.29 

1.49

a 14

2.48 

2.58

1,171 

3.E7 

4.12

2,b55 

8.09 

9.03

4b6 

1.42

1.64

Observed

Max 4,320 Min 22 Mean sou 

Max 5,250 Min 28 Mean 69t

223 

0.698 

0.79

335 

1 . 02

1.18

208 

0.634 

0.73

2fc3 

0 . 802 

0.89

Adjusted

Mean 524 Cfsm 1.60 In. 21.67 

Mean £95 Cfsm 2.12 In. 28.74

* Discharge measurement made on this day. 

b Stage discharge relation affected by ice.

f Fragmentary gage-height record; discharge computed from partly e 

Note. No gage-height record Apr. 4 to June 3; discharge computed 

stations.

stiraated gage heights. 

Dn basis of records frc
70 ANDROSCOGGIN RIVER BASIN

Androscoggin River near Auburn, Maine

Location. Lat 44°04 I 15", long. 70°12'35", on left bank 1-j miles downstream from Little 

flnaroscoggin River and 2 miles downstream from north bridge between Auburn and Lewiston, Androscoggin County.

Drainage area. 3,257 sq mi.

Records available. November 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 109.2 ft above mean sea level, datum of

Average discharge. 22 years (1929-51), 5,756 cfs.

Extremes.--Maximum discharge during year, 52,900 cfs Apr. 4 (gage height, 15.26 ft); mini-

 mum daily, 520 cfs Oct. 8.

1928-51: Maximum discharge, 135,000 cfs Mar. 20, 1936 (gage height, 27.57 ft), 

from rating curve extended above 76,000 cfs on basis of slope-area determination of 

peak flow and computation of flow over dams; minimum, 309 cfs Sept. 28, 1941 (gage 

height, 0.34 ft); minimum daily, 340 cfs Sept. 28, 1941.

Remarks.--Records excellent. Considerable fluctuation caused by powerplants above station. Flow regulated by powerplants above station and by Rangeley-Umbagog series of 

lakes, Kennebago, Asiscohos, Pennesseewassee, Thompson, and Auburn Lakes and Gulf 

Island Pond (see pp. 71,72).

Revisions (water years). W 781: 1930, 1933, 1934.

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

and discharge, in cubic feet per second)

1.0

1.2 

1.6

500

560

625

695

840

1,200

2.0 

2.5 

3.0 

4.0 

5.0 

6.0

1,650

2,360

3,240

5,350

8,000

11,100

7.0

8.0

10.0

12.0

14.7

14,800

18,900

28,700

38,400

50,400

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

Oct.

675

3,480

2,940

2,960

2,960

2,910

1,120

520

3,3TO

2,940

3,130

3,550

4,640

4,600

2,580

5,460

3,230

3,070

3,220

3,470

1,370

945

3,540 

3,040 

3,100

3,270

3,420

1,500

610

3,810

3,140

88,510

2,855

Nov.

3,020

2,810

2,850

1,190

1,700

7,260

7,190

5,000

4,780

4,730

3,670

1,460

4,080

3,180

3,010

3,090

3,360

1,620

1,300

4,040

4,180

9,130

7,820 

5,690 

5,260

9,490

43,200

36,600

27,600

20,900

-

239,210

7,974

Dec.

14,900

12,700

9,920

8,530

14,400

23 , 000

16,300

12,200

21,400

31,600

22,100

18,400

*15,500

12,500

10,200

8,850

7,860

7,380

6,760

6,100

5,540

5,380

5,810 

5,520 

5,630

5,180

5,130

5,120

4,840

4,220

3,160

336,130

10,840

Jan.

4,200

5,430

5,540

6,130

5,790

5,470

4,500

5,610

5,250

5,160

4,990

5,200

4,870

4,130

5,170

5,160

5,390

5,240

5,370

4,650

3,120

5,550

4,870 

5,830 

6,660

5,980

6,280

4,830

5,490

5,190

5,080

162,170

5,231

Feb.

5,040

5,020

4,680

3,470

5,200

4,900

5,080

13,300

21,000

12,800

9,200

7,960

7,800

7,670

7,470

6,500

6,150

5,180

6,520

6,320

6,200

6,500

7,370 

7,030 

6,090

6,650

6,750

6,000

_

_

-

203,850

7,280

Mar.

5,930

5,750

5,070

4,600

5,830

5,520

5,580

5,760

5,850

4,750

4,310

5,960

6,450

7,180

9,720

9,810

9,030

8,650

8,560

10,500

12,400

11,600

9,210 

8,250 

7,450

7,720

7,230

7,150

7,130

8,090

14,500

235,540

7,598

Apr.

24,800

24,000

31,300

50,100

40,300

27,800

23,100

22,200

24,800

26 , 200

23,800

24,300

25,400

25,600

27,100

24,400

21,300

18,100

15,600

14,100

13,200

12,100

13,000 

16,800 

16,800

19,100

25,200

23,700

20,600

20,200

-

695,000

23,170

May

18,800

16,606

15,800

14,500

14,100

12,800

12,900

12,700

11,200

10,200

10,200

9,090

9,240

9,400

8,680

8,280

8,560

8,650

8,690

8,450

8,340

8,200

8,620 

8,970 

8,730

8,360

6,640

6,690

10,700

8,940

7,530

320,560

10,340

June

6,670

6,370

5,220

5,630

4,890

4,750

4,870

4,410

4,100

3,320

4,750

4,520

4,290

4,320

4,270

3,200

2,020

4,520

4,580

4,450

4,120

3,950

2,570 

1,020 

3,820

3,590

3,860

3,870

2,920

2,580

-

123,450

4,115

July

1,180

3,310

3,090

2,250

2,830

3,960

4,710

2,990

4,510

3,920

3,500

3,610

5,640

6,700

4,700

4,860

3,850

3,630

4,320

4,260

4,600

2,970

4,180 

3,880 

3,880

3,240

3,090

1,570

1,100

4,110

3,830

114,270

3,686

Aug.

3,940

3,600

3,220

1,980

1,160

3,810

3,670

3,690

3,430

3,050

1,510

935

3,755"

3,640

3,090

3,440

3,360

1,560

1,070

3,700

3,580

3,550

3,700 

3,610 

2,370

1,450

3,990

3,990

4,140

4,020

3,830

95,845

3,092

Sept.

2,540

2,310

3,760

4,030

*3,750

3,740

3,670

4,550

2,870

4,250

3,740

3,780

3,600

3,420

2,050

2,140

4,130

3,880

3,840

*3,680

3,510

1,950

1,320 

3,730 

3,620

3,330

3,280

3,060

1,720

1,330

-

96,580

3,219

Mean 

Cfsm

1,545 

0.474 

0.55

10,53C 

3 25 

3.6C

Calendar year 1950: 

Water year 1950-51:

11,930 

3.66 

4.22

3,176 

0.975 

1.12

5,971 

1.83 

1.91

6,529 

2.00 

2.31

29,330 

9.01 

10.05

10,960 

3.36 

3.87

Observed

Max 47,200 Min 520 Mean 6,135 

Max 50,100 Min 520 Mean 7,428

2,698 

0.828 

0.92

3,100 

0.952 

1.10

1,745

0.536 

0.62

1,959 

0.601 

0.67

Adjusted

Mean 6,509 Cfsm 2.00 In. 27.14 

Mean 7,428 Cfsm 2.28 In. 30.94

* Discharge measurement made on this day. 

t Adjusted for change in contents of Rangeley e 

Pond, Auburn, Pennesseewassee and Thompson Lalces.

hain of lakes, Aziscohos Reservoir, Gulf Isla
ANDROSCOGGIN RIVER BASIN

Reservoirs in Androscoggin River basin, Maine

Kennebago Lake on Kennebago River, at Kennebago, used for power, has usable capacity of

 yyi,0(JU,UU(J cu ft between elevations 1,733.0 and 1,780.5 ft above mean sea level, unadjusted. Gage-height record furnished by Union Water Power Co.

Rangeley Lake on Rangeley Stream, at Oquossoc, used for power and log driving, has usable

 capacity of 1,339,COO',000 cu ft in top 4 ft of lake (top of flashboards) . Gage-height 

record furnished by Union Water Power Co.

Mooselookmeguntic Lake at Upper Dam, in Richardson Township, used for power and log driv-

 ing, nas usable capacity of 8,370,000,000 cu ft between gage heights 8.30 and CO.50 ft. 

Gage-height record furnished by Union Water Power Co.

Upper and Lower Richardson Lakes on Rapid River, at Middle Dam, used for power and log

 driving, nas usaoie capacity of 5,691,500,000 cu ft between gage heights 3.0 and 20.50 

ft. Gage-height record furnished by Union Water Power Co.

Umbagog Lake on Androscoggin River, at Errol Dam, three-quarters of a mile northeast of

 Errol, N. H., used for power and logdriving, has usable capacity of 3,080,160,000 cu ft 

between gage heights 5.50 and 15.00 ft. Gage-height record furnished by Union Water 

Power Co.

Aziscohos Lake on Magalloway River, in Lincoln Township, 3 miles east of village of Wilsons

 Mills, completed in 1911 for power, has usable capacity of 9,593,000,000 cu ft between 

gage heights 490.0 and 535.0 ft. Gage-height record furnished by Union Water Power Co.

Gulf Island Pond on Androscoggin River, 3 miles upstream from Lewiston, completed in 1928

 ror power, has capacity of 1,100,000,000 cu ft in top 10 ft of pond. Gage-height record 

furnished by Central Maine Power Co.

Lake Auburn on outlet stream to Androscoggin River, at East Auburn, used for storing water

 supply of Auburn and Lewiston, has usable capacity of 580,000,000 cu ft between gage 

heights 54.7 and 60.7 ft. Gage-height record furnished by Auburn Water District.

Pennesseewassee Lake on short outlet stream to Little Androscoggin River, at Norway, used

 for power, nas usable capacity of 192,000,000 cu ft between gage heights 95.0 and 100,0 

ft. Gage-height record furnished by Central Maine Power Co.

Thompson Lake on short outlet stream to Little Androscoggin River, at Oxford, used for

 power, nas usable capacity of 950,000,000 cu ft between gage heights- 95.0 and 100.0 ft. 

Gage-height record furnished by Robinson Manufacturing Co.

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

Date

Dec. 31. ...........................

Calendar year 1950. ..............

Sept. 30. ...........................

Date

Dec. 31. ...........................

Calendar year 1950 ...............

Sept . 30 ............................

Kennebago Laket

Gage 

height 

(feet)

78.1 

78.0 

78.9 

82 . 8

-

80.6 

79.8 

80. 1 

79.8 

81.8 

81.6 

80.8 

80.8 

79.4

-

Contents 

(millions 

of cubic 

feet)

459 

448 

545

986

-

733

643 

676 

643 

871 

848 

756 

756 

599

-

Change In 

contents 

during 

month 

(m.c.f.)

-11 

+97 

+441

+288

-253 

-90 

+33 

-33 

+228 

-23 

-92 

O 

-157

+140

Mooselookmeguntic Laket

14.1 

12.3 

14.5 

17.7

-

14.8 

12.25 

10.6 

18.9 

20.05 

19.0 

18.35 

15.9 

13.1

-

3,858 

2,634 

4,130 

6,367

-

4,334 

2,600 

1,493 

7,223 

8,046 

7,295 

6 , 830 

5,091 

3,178

-

-1,224 

+1 , 496 

+2,237

+5,699

-2,033 

-1,734 

-1,101 

+5,724 

+823 

-751 

-465 

-1,739 

-1,913

-680

Rangeley Laket

Gage 

height 

(feet)

3.00 

1.58 

3.83 

2.17

-

.58 

. 00 

.58 

4.00 

4.OO 

3.75 

3.92 

3.83 

3.42

-

Contents 

(millions 

of cubic 

feet)

1,004 

529 

1,282 

727

-

194 

0 

194 

1,339 

1,339 

1,246 

1,313 

1,232 

1,145

-

Change in 

contents 

during 

month 

(m.c.f.)

-475 

+753 

-555

+727

-533 

-194 

+194 

+1,145 

0 

-93 

+67 

-31 

-137

+141

Upper and Lower Richardson 

Lakest

13.7 

11.8 

14.65 

17.05

_

14.5 

14.55 

10.8 

19.1 

19.55 

18.3 

16.3 

14.4 

14.3

-

3,160 

2,467 

3,510 

4,398

_

3,455 

3,474 

2,105 

5,162 

5,331 

4,862 

4,121 

3,418 

3,381

-

-693 

+1,043 

, +838

+2,022

-943 

+19 

+1,369 

+3,057 

+169 

-469 

-741 

-703 

-37

+221

t Gage height and contents at 7 a.m. on first day of following month.
ANBR03COGGIN RIVER BASIN

Monthly gage height and contents, of reservoirs in Andro 

water year October 195u t: September 1951

;in River basin. Maine,

 Continued

og Laket

Change in 

contents 

during

Jan. 31. 

Feb. 28.

Water year 1950-51.

+36 

+1,595 

-1.U09

6.688

5,904

4,364

9,192

9,764

8,410

8,440

7,444

6,464

+1,078

+1,414

+718

-1,334 

-7B4

-1,04U

+4,328

+572

-1,354 

+3U

Gulf Island Pond*

-40 

+30 

+162

see Laket t Thompson Lake

Jan. 31. 

Feb. 28. 

Mar. 31. 

Apr. 30. 

May 31. 

June 30. 

July 31. 

Aug. 31. 

Sept.30.

Water year 1950-51.

97.4

98.2

111

107

111

+32 

+18

1,799

1,723

1,318

1,875

-76 

+95 

+57

Gage height and 

Gage height and 

t Gage height and

at 12 p.ti

n first day of following month, 

day uf each month determined by interpolati
ROYAL RIVER BASIN 

Royal River at Yarmouth, Maine

Location. Lat 43°47'55", long. 70°10'45", on right bank 150 ft above lower highway 

D ridge in Yarmouth, Cumberland County.

Drainage area.--142 sq mi.

Records available. --October 1949 to September 1951,

Gage . --Water-stage recorder. Altitude of gage is 30 ft (from topographic map).

Extremes . Maximum discharge during year, 4,400 cfs Apr. 1 (gage height, 5.41 ft); mini- 

 mum, 6.1 cfs Oct. 26, 27, Nov. 1, 2, 3 (gage height, 0.65 ft).

1949-51: Maximum discharge, that of Apr. 1, 1951; minimum, 5.8 cfs Aug. 23, 24, 

1950 (gage height, 0.64 ft).

Remarks . --Records excellent except those for periods of ice effect, which are fair. Some 

diurnal fluctuation at low flow caused by mill above station.

Rating table, water year 1950-51, except periods of ice effect (gage

height, In fe

0.9

1.0

1.1

1.2

d discharge, in cubic feet per second)

198

285

385

570

3.0 1,140

4.0 2,290

5.2 4,220

Discharge ubic feet per second, water year October 1950 to Septembe

Day

1

Z

3

4

5

6

7

8

9

10

11

13

14

15

ie

17

18

19

20

Zl

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

30

30

27

27

24

24

2125-

27

28

65

125

223

115

75

58

48

46

45

43

37

37

40

39

42

44

37

37

39

44

40

1,543

49.8

0.351

0.40

Nov.

42

36

38

34

1SF

254

145

107

90

80

70

63

55

52

49

49

53

56

49

49

370

583

290

186

152

870

2,060

1,290

765

467

-

8,602

287

2.02

2.25

 

Dec.

328

258

223

202

600

770

419

328

1,720

1,740

1,020

932

*765

499

364

309

290

249

182

160

152

142

142

142

145

126

98

8555-

88

92

12,655

408

2.87

3.31

Jan.

95

92

9TT

163

254

182

135

116

110

107

110

110

104

101

135

202

190

159

142

132

167

258

198

570

1,340

796

415

245

176

140

120

7,162

231

1.63

1.88

Feb.

126

116

TZZ

122

120

145

230

1,630

1,310

810

540

325

220

305

270

210

170

280

531

*583

448

656

1,110

750

431

349

365

343

-

-

-

12,617

451

3.18

3.31

Mar.

320

244

205

194 505"

227

249

285

249

210

202

474

622

570

2,720

2,330

1, 120

684

531

1,320

2,290

1,230

642

467

492

564

414

369

385

431

1,960

22,202

716

5.04

5.81

Apr.

4,130

2,210

2,400

*3,850

1,910

941

698

583

590

684

616

590

720

950

728

544

492

436

396

442

354

5TQ- 299

712

474

1,110

1,030

583

402

333

-

29,717

991

6.98

7.79

May

290

2BT

232

206

198

186

175

163

152

142

135

211

227

182

156

139

125

125

116

110

107

101

95

12TT

211

159

122

227

285

232

215

5,406

174

1.23

1.42

June

175 TIB132

120

122

101

95

90

85

80

72

68

68

68

88

156

142

116

107

90

82

72

72

107

95

78

67

66

6575-

-

2,899

96.6

0.680

0.76

July

80

80

70

125" 63

309

215

142

107

85

78

119

512

364

190

128

132

135

272

698

385

215

156

122

104

92

85

88

190

182

135

5,658

183

1.29

Aug.

132

152

116

110

107

92

82

80

80

80

75

7072"

72

70

80

149

152

122

101

113

275" 375

156

119

104

132

194

152

122

101

3,838

124

0.873

1.49 1.01

Sept.

101

110

152

198

156

122

254

343

20TT

*145

113

98

90

82

80

104

107

88

80

75

72

70

7?

71

72

101

90

88

80

72

-

3,492

116

0.817

0.91

Calendar year 1950; Max 2,060 Min 21 Mean 233 Cfsm 1.64 In. 22.27

Water year 1950-51: Max 4,130 Min 21 Mean 317 Cfsm 2.23 In. 30.34

Peak discharge (base, 1,500 cfs). --Nov. 27 (8 a.m.) 2,170 cfs (3.90 ft); Dec. 9 (9 p.m.) 2,030 cfs

(3.78 ft); Fet>. . 3 (1 p.m.) .. 1,730 cfs (3.53 . ft); Mar. . 15 (10 p.m.) .. 3,000 , cfs (4.52 . ft); Mar. . 21

.m.) 2,550 cfs (4.20 ft); Apr. 1 (6 to 8 a.m.) 4,400 cfs (s.41 ft); Apr. 4 (10 a.m.) 4,140 efs 

(5.25 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 19, 20, 26, Jan. 27 to Feb. 5, Feb. 9-17, 27, 

MarTT, 3, 10.

288890 O - 54 - 6
74 PRE3UMPSCOT RIVER BASIN

Presumpscot River at outlet of Sebago Lake, Maine

Location. Lat 43°48'50", long. 70°27'00", at outlet of Sebago Lake, Cumberland County.

Drainage area.--436 sq mi.

Records available.--January 1887 to September 1951.

Gage. Staff gage at dam on outlet of Sebago Lake and float gage in forebay and tailrace 

of hydroelectric plant at Eel Weir Falls, 1 mile downstream from lake outlet.

Average discharge. 64 years, 641 cfs.

Remarks. Discharge computed from Alien meter records for each of three pairs of water 

wneels and from records of openings of two regulating gages at Eel Weir hydroelectric 

plant. Water wasted at rare intervals through gates in dam on outlet of Sebago Lake; 

flow computed from records of gate openings. Water diverted by Portland Water District and leakage through dam, totalling about 35 cfs, not included in figures of 

daily discharge. Flow completely regulated by Sebago Lake (surface area, 45.6 sq mi), 

and by Pleasant, Crystal, Highland, and Long Lakes, and Parker, Thomas, Panther, 

Rattlesnake, Wood, and Brandy Ponds, which have a combined usable capacity of 

12,105,000,000 cu ft.

Cooperation.--Records furnished by S. D. Warren 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

Oct.

566

541

542

542

541

541

543

541

541

540

513

543

507

470

497

506

502

505

506

531

542

540

540

538

515

500

520

537

510

499

501

16,260

525

Nov.

527

530

664

509

501

503

502

511

522

527

538

539

500

517

500

500

544

532

553

524

517

503

469

502

500

246

355

538

514

546

-

15,236

508

Dec.

537

487

402

512

469

523

526

487

306

331

542

603

596

643

646

629

664

700

704

727

719

712

642

0

131

616

665

653

678

640

670

17,160

554

Jan.

717

665

660

675

684

657

656

654

704

677

666

682

686

684

642

624

693

667

672

677

684

653

681

590

TTJ6

682

672

664

704

687

742

20,907

674

Feb.

705

690

697

659

721

753

683

625

762

765

705

739

747

748

708

756

711

709

715

726

711

672

701

704

730

714

723

717

_

-

-

19,996

714

Mar.

728

700

701

710

724

737

727

645

709

715

666

719

670

705

722

703

714

706

728

704

652

705

676

714

734

775

828

WS

707

687

578

21,992

709

Apr.

587

858

789

846

835

845

1,310

1 , 540

2,280

2,380

2,560

2,550

2,520

3,100

2,930

2,960

2,860

2,870

1,960

1,430

846

914

1,090

1,580

2,150

3,160

3,160

3,020

2,740

2,100

-

58,770

1,959

May

1,150

5T5

848

845

844

843

S45

S50

848

852

848

851

847

851

848

S51

840 B49"

846

840

846

848

851

851

850

852

851

852

849

852

852

26,598

858

June

851

351

850

847

846

848

825

847

847

849

844

847

845

845

846

845

846

S46

845

841

843

845

846

844

846

848

828

775

707

754

-

25,047

835

July

752

641

285

212

2T3

673

700

700

755

755

737

615

624

533

657

713

734

753

663

722

724

718

716

745

687

619

691

703

776

S3T

652

20,099

648

Aug.

710

1 , OOP

743

746

604

528

m

691

792

738

777

742

777

758

759

758

759

756

756

768

781

747

754

750

755

755

760

752

753

757

756

23,246

750

Sept.

752

755

401

268

727

754

693

757

753

776

753

753

781

836 534"

830

750

794

813

754

829

795

775

778

788

781

814

772

760

aso

-

22,456

749

Adjustedt

Mean

In.

153

-

1,058

-

Calendar year 1950: 

Water year 1950-51:

1 , 602

-

595

-

1,045

-

2,453

-

2,436

-

677

-

Observed

Max 727 Min u Mean 467 

Max 3,16u Mln 0 Mean 788

411

-

485

-

239

-

60

-

Adjusted

Mean 681 Cfsm 1.56 In. 21.20 

Mean 932 Cfsm 2.14 In. 29.04

t Adjusted for change In contents In Sebago Lake, Brandy Pond (controls also Long Lake), Panthe: 

'ond (controls also Rattlesnake Pond), Highland Lake, Pleasant Lake (controls also Parker Pond), 

irystal Lake, Wood and Thomas Ponds, diversion by Portland Water District, and leakage past gagln,

 t-a-M nn
3ACO RIVER BASIN 75

Saco River near Conway, N. H.

Location. Lat 43°59'25", long. 71 "05'30", on left bank at Ode 11 Falls, if miles downstream from Swift River and Conway, Carroll County.

Drainage area.--386 sq mi.

Records available. August 1903 to June 1912 (winter records incomplete) , February 1929 

to aeptemoer ±951.

Gage. Water-stage recorder. Datum of gage is 417.9 ft above mean sea level, preliminary 

adjustment of 1928. August 1903 to June 1912 chain gage at site three-quarters of a 

mile downstream at different datum.

Average dlachargp.--83 years (1929-51), 900 cfs.

Extremes.--Maximum discharge during year, 30,100 cfs Nov. 26 (gage height, 13.84 ft), 

rrom ratine: curve extended as explained below; minimum, 126 cfs Oct. 8 (gage height, 

2.11 ft).

1903-10, 1929-51: Maximum discharge, 40,600 cfs Mar. 19, 1936 (gage height, 16.45 

ft), from rating curve extended above 11,000 cfs on basis of slope-area determination 

of peak flow; minimum, 40 cfs Mar. 16, 1932 (gage height, 1.61 ft).

Remarkc.--Records excellent except those for periods of ice effect or no gage-height 

record, which are fair.

Revisions (water years).--W 756: 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 Nov. 24 Nov. 25 to Sept. 30

2.1 

Z.Z 

Z.3 

Z.4 

Z.6 

2.8

123 

148 

176 

Z07 

Z75 

349

3.0 

3.3 

3.6 

4.0 

5.0 

6.1

431

586

781

1,11O

2,300

4,160

2.6 

2.8 

3.0 

3.3 

3.6 

4.O

zee

369

465

630

5.0 

6.0 

7.0 

8.0 

9.0 

10. Z

2,330

3,970

6,080

8,760

11,800

15,900

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

Day

1

3

4

5

6

7

8

9

10

11

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

151

148

146

14O

133

130

128

126 T2B"

133

485

580

910

SIS

431

361

315

307

282

261

244

240

a250

a260

a270

330

311

275

275

304

300

8,970

289

0.749

O.86

Nov.

275

261

250

5BB

3,850

2,360

1,190

863

719

641

564

509

469

44O

414

402

427

423

389

406

4,150

2,100

1,250

994

912

15,600

7,7OO

5,490

5,290

3,140

-

61,746

2,058

5.33

5.95

Dec.

2,340

1,870

1,600

1,660

9,01O

3,480

3,180

2,230

8,150

5,180

3,450

2,930

2,380

1,940

1,640

1,460

1,310

*1,180

1,020

897

845

805

750

690

630

580

540

515

505 570"

630

63,967

2,063

5.34

6.16

Jan.

595

540

585

655

715

680

595

485

445

450

455

435

400

385

395

455

405

405

410

400

350

290 355"

566

818

715

544

450

415

370

335

15,098

487

1.26

1.45

Feb.

330

325

315

305

300

295

290 E30~

1,140

1,180

1,080

935

890

845

820

*820

810

805

790

78O

75O

740

715

700

690

680

655

630

_

_

-

19,245

687

1.78

1.85

Mar.

600

570

570

545

515

515

515

515

490

465

512

522

601

618

654

678

690

*727

690

752

778

709

636

636

624

595

556

613

752

1,020

2,790

21,453

692

1.79

2.06

Apr.

3,830

3,650

6,49O

8,940

4, ISO

*3,190

3,380

3,450

4,010

5,110

8,410

5,700

6,060

5,240

4,460

3,920

3,160

2,750

2,450

2,320

2,100

1,900

4,400

4,280

3,310

6,690

5,220

4,080

4,770

5,210

-

132,640

4,421

11.45

12.78

May

3,500

3,060

2,780

2,100

1,860

1,750

1,660

1,670

,700

,260

,580

,750

,660

,410

a ,350

a ,330

a ,410

,540

,300

,220

1,300

1,260

1,150

1,080

1,240

943

868 4,5~40~

2,680

1,800

1,390

55,141

1,779

4.61

5.32

June

1,170

1,010

943

875

861

77"

702

660

613

572

528

517

507

496

613

759

678

584

561

534

486

465

517

607

475

420

374 37B"

378

470

-

18,525

618

1.60

1.78

July

481

470

406

365

501

875

660

507

415

374

323

1,030"

1,960

95S

684

566

630

607

820

1,430

854

660

572

507

445

415

475

512

1,260

920

678

21,360

689

1.78

2.05

Aug.

666

630

522

601

630

507

440

415

440

406

365

327

340

323 374"

387

660

630

630

486

465

1,460

1,010

709

607

539

522

740

578

475

420

17,304

558

1.45

1.67

Sept.

528

578

566

601

522

465

1,600

1,100

765

630

*550

512

465

435

450

648

512

445

401

369

361

344

335 36~9~

348

415

374

450

496

397

-

16,031

534

1.38

1.54

Calendar year 1950: Max 15,600 Min 102 Mean 1,066 Cfsm 2.76 In. 37.47

Water year 1950-51: Max 15,600 Min 126 Mean 1,237 Cfsm 3.20 In. 43.47

Peak discharge (base, 8,700 cfs). --Nov. 26 (4:30 p.m.) 30,100 cfs (13.84 ft); Dec. 5 (7 a.m.)

14,5OO cfs (9.8O ft); Dec. 9 (5 p.m. 9,710 cfs (8.32 ft); Apr. 4 (1 a.m. 13,800 cfs (9.60 ft);

Apr. 11 (8 a.m) 10,400 cfs (8.54 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of recorded range in stage and weather 

records.

Note. Stage-discharge relation affected by ice Dec. 21 to Jan. 23, Jan. 29 to Mar. 9.
SAGO RIVER BASIH

Osslpee River at Effingham Falls, N. H.

Location. Lat 43°47'40" ) long. 71°03'40", on left bank 0.3 mile upstream from highway 

oriage at Effingham Falls, Carroll County, 0.35 mile downstream from outlet of Ossipee 

Lake, and 4 miles northwest of Effingham'.

Drainage area. 330 sq mi.

Records available.--September 1942 to September 1351.

Gage.--Water-stage recorder. Altitude of gage is 390 ft (from topographic map).

Average discharge.--9 years, 672 efs.

Extremes.--Maximum discharge during year, 4,800 cfe Apr. 5 (gage height, 8.82 ft); mini4 cfs July 23 (gage height, 1.02 ft); minimum daily, 160 efs Oct. 7-10.

1942-51: Maximum discharge, that of Apr. 5, 1951; minimum, 10 cfs Oct. 9, 10, 1944;

minimum daily, 11

Remarks.--Records excellent. Flow regulated by Ossipee and Silver Lakes and Pine River

orHT (combined capacity, 1,430,000,000 cu ft)

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

and discharge, In cubic feet per - "^

160

265

410

800 

1,330 

Z, 000

7.0 2,810

8.0 3,830

8.8 4,770

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

Day

1

2

3

4

5

6

7

8

3 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

*164

164

164

164

162

162

160

TBU

160 

160

162

164

164

166

TEE

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

5,098

164

-

-

Nov.

166

*THH

168

168

171

175

179

181

183 

187

187

189

191

193

193

195

201

205

205

210

277

504

602

594

566

1,130

3,240

3,980

3,730

3,220

-

21,558

719

'

-

Dec.

2,730

1,830

*1,320

760

691

1,240

1,900

1,880

2,230 

2,710

2,740

2 , 600

2,390

1,980

1,180

836

840

832

822

796

778

764

755

750

568

420

417 4"T7

420

420

420

38,436

1,240

-

-

Jan.

420

420

420

420

424

424

428

428

442

501

498

498

498

494

498

498

498

494

494

529

5To~ 618

602

606

606

614

545

387 3"50~

390

571

15,265

492

-

-

Feb.

755

750

742

737

728

719

714

712

508 52~5"

582

626

698

920

925

910

890

886

1,070

1,200

1,160

1,140

1,120

1,110

1,080

1,060

1,040

1,020

_

-

-

24,331

869

-

-

Mar.

1,000

975

945

920

895

863

814

618

550 

550

529

515 540"

582

690

863

876

905

940

1,000

1,060

1,020

1,020

1,020

1,020

965

900

890

895

950

1,270

26,580

857

-

-

Apr.

2,090

2,830

3,350

4,370

4,720

4,460

*4,090

3,810

3,600 

3,500

3,560

3,680

3,630

3,600

3,510

3,360

3,120

2,850

2,620

2,420

2,200

1,670

1,310

1,640

2,210

2,660

2,840

2,810

2,640

2,440

-

91,590

3,053

-

-

May

2,210

1,850

1,370

1,250

1,180

*1,140

839

658

439 

512

472

773

920

1,020

935

746

672

452

456

462

462

466

466

620

702

702

694

719

836

930

1,160

25,913

836

-

-

June

1,250

1,210

1,130

*1,090

1,060

1,020

455

199

173 TTB"

175

177

177

249

468

383

456

456

456

456

403

244

244

244

247

247

309

466

462

346

-

14,427

481

-

-

July

249

5TT

251

293

387

452

473

442

410 

410

407

407

410

414

417

417

417

417

647

746

930

1,030

681

486

466

462

362

320

745

1,280

1,320

16,399

529

-

-

Aug.

1,340

1,190

1,040

766

548

358 355"

358

358 

358

358

358

358

358

358

358

456

890

*830

459

459

484

746

886

701

484

757

832

686

514

448

18,454

595

-

-

Sept.

445

445

448

452

*459

512

724

975

1,000 

 BUT

710

670

512

456

456

452

456

456

456

452

409

330

3150"

377

377

377

377

377

374

*374

-

15,169

506

-

-

Calendar year 1950: Max 3,980 Min 158 Mean 662 Cfsm 2.01 In. 27.22

Water year 1950-51: Max 4,720 Min 160 Mean 858 Cfsm 2.60 In. 35.30

Discharge measurement made on this day.
SACO RIVER BASIW 

Ossipee River at Cornish, Maine

77

Location. Lat 43°48'25", long. 70°47'55", on left bank just downstream from highway 

oriage in Cornish, York County, 1-J- miles upstream from mouth.

Drainage area.--453 sq mi.

Records available.--July 1916 to September 1951.

Sage.--Water-stage recorder. Datum of gage is 276.1 ft above mean sea level, datum of 

T929. Prior to Aug. 21, 1929, chain gage at same site at 1 ft higher datum. Aug. 21, 

1929, to Sept. 30, 1942, water-stage recorder at same site at datum 1 ft higher than 

present datum.

Extremes.--Maximum discharge during year, 6,620 cfs Apr. 3 (gage height, 8.65 ft); mini- 

 mum, 47 cfs Oct. 1 (gage height, 0.74 ft); minimum daily, 148 cfs Oct. 7.

1916-51: Maximum discharge, 17,200 cfs Mar. 21, 1936 (gage height, 16.32 ft, present datum), from rating curve extended above 7,500 cfs; minimum, X5 cfs Oct. 23, 1947 

(gage height, 0.60 ft).

Remarks. Records excellent except those for periods of ice effect or no gage-height 

record, which are fair. Plow partly regulated by powerplants at Kecar Falls and by 

Ossipee and Silver Lakes, Pine River, Bickford and Colcord Ponds (combined capacity, 

1,600,000,000 cu ft).

Revisions.--W 756: Drainage area.

Rating tables, water year 1950-51, except periods of ice effect 

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

Oct. 1 to Nov. 27 Nov. 28 to Sept. 30

1.3

1.4 

1.6

146

171

225

285

359

445

539

2.7 

3.0 

3.5 

4.0 

5.0 

6.3

692

860

1,170

1,520

2,280

3,450

2.0 

2.2 

2.4 

2.7 

3.0

228

296

370

453

548

709

1,190

1,540

2,350

3,300

4,440

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

IE

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

168

188

176

158

168

166

T50" 148

176

192

240

255

285 235"

215

210

210

210

198

198

186

198

205

210

215

210

205

200

200

198

222

6,195

200

-

-

Nov.

205

200

200

215

299

336

279

276

266

263

248

251

257

254

260

257

273

270

276

285

419

604

708

724

713

2,080

3,390

4,620

4.S60

3,850

-

26,838

895

-

-

Dec.

3,200

2,560

1,660

1,630

986

1,260

1,780

2,320

3,300

3,590

3,430

3,180

2,860

2,480

1,810

1,160

1,120

1,100

1,060

998

956

938

921

926

868

710

590

5917

595

595

600

49,773

1,606

-

-

Jan.

600

600

600

600

600

600

605

610

620

650

675

675

675

675

680

690

705

705

700

700

725

805

805

815

850

830

815

700

600

600

580

21,090

680

-

-

Feb.

960

955

950

945

940

930

940

1,040

910

770

770" 730

920

1,160

1,190

1,250

1,110

1,120

1,200

1,460

1,410

1,460

1,500

1,440

1,360

1,340

1,330

1,320

-

-

-

31,410

1,122

-

-

Mar.

1,260

1,220

1, 170

1, 140

1, 110

1,080

1,060

938

782

765

765

805

*886

932

1,110

1,320

1,380

1,420

1,410

1,650

1,940

1,660

1,400

1,410

1,410

1,390

1,270

1,270

1,360

1,470

2,290

39,073

1,260

-

-

Apr.

3,260

3,720

*5,160

6,170

6,050

5,620

5,070

4,640

4,310

4,160

4,220

4,300

4,300

4,250

4,100

3,920

3,660

3,320

3,030

2,800

2,550

2,270

1,780

2,010

2,260

3,360

3,330

3,230

3,040

2,800

-

112,690

3,756

-

-

May

2,530

2,280

1,740

1,570

1,460

1,430

1,250

980

788

600

574

1,050"

1,130

1,270

1,230

998

956

720

660

654

654

660

611

754

974

909

880

1,020

1,090

1,130

1,260

33,802

1,090

-

-

June

1,360

1,360

1,290

1,230

1,200

1,130

895

414

268

272

295

572" 255

265

490

616

616

605

590

553

548

400

321

374

359

328

325

*475

538

533

1

18,177

606

-

~

July

386

347

328

318 5T9~

649

622

564

524

450

476

519

698

574

514

499

509

499

730

1,080

980

1,160

974

638

538

543

528

499

845

1,380

1,460

20,350

656

-

~

Aug.

1,480

1,460

1,180

998

754

499

432

453

462

450

419 J35"

462

449

440

440

569

920

986

743

564

616

731

938

909

590

710

950

776

687

514

22,013

710

-

~

Sept.

519

528

649

638

574

553

799

1,020

1,090

1,010

880

759

687

528

524

533

533

533

528

528

524

394 BO"

458

467

490

471

471

432

440

-

18,000

600

-

"

Calendar year 1950: Max 4,620 Mln 148 Mean 828 Cfsm 1.83 In. 24.83

Water year 1950-51: Max 6,170 Mln 148 Mean 1,094 Cfsm 2.42 In. 32.80

* Discharge measurement made on this day.

Note No gage-height record Oct. 26, 27, Dee. 26 to Jan. 22: discharge computed on basis of 

records for nearby stations and weather records. Stage-discharge relation affected by Ice Jan. 

23-27, Jan. 30 to Feb. 13.
78 SACO RIVER BASIN

York3Countv10h1n>70 ° 4 -n 5£ ^' °n ,left b&nk Just UP Stream from highway bridge 

, xortt county, half a mile downstream from Ossipee River.

Drainage area.--l.C98 sq mi.

Records available .--June 1916 to September 1951.

tprIorato £orrdo r -iq?q tUn\ 0 - ga§e 1S " 63 ' S ft ab °ve mean sea level - datum of 

Prior to Oct. 30, Ial9, chain gage on bridge just downstream a-t different datum.

Average discharge .--35 years, 2,626 cfs.

?«? 6lleSn excePt those for periods of ice effect or no gage-height rec- 

' W ^tly re §ulated b y powerplants above station and by cHr3^:6oSoo^e ftrcock ' pine Rlver> Blck"ord ' and

Rating babies, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to Apr. 2

1.9

2.0 

2.2 

2.4

447

494

595

705

830

965

1,120

3.5

11.1

1,530

2,050

3,350

5,000

7,000

11,900

18,100

Apr. 3 to Sept. 30

8.0 9,360 

10.0 14,100 

11.2 17,100 

Note.--Same as

preceding table

below 8.0 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.

Oct.

558

661

574

612

523

480

600

441

568

532

753

862

,190

,170

,170

,110

,060

,020

895

869

836

780

836

705

810

856

711

824

741

824

765

24,342

785

-

-

Nov.

804

817

747

791

965

1,870

2,280

2,290

2,240

2,120

1,930

1,760

1,630

1,380

1,380

1,310

1,260

1,300

1,190

1,160

1,530

2,600

2,930

2,990

2,930

6,040

7,880

10,100

13,000

15,400 "

92,624

3,087

-

"

Dec.

12,800

11,200

9,280

7,990

7,000

6,790

7,620

8,840

11,000

11,100

11,700

12,200

11,500

10,400

8,810

7,370

6,640

*5,950

5,440

4,900

4,520

3,980

3,770

3,520

3,340

1,940

1,910

1,850

1,860

1,880

1,800

208,900

6,739

-

"

Jan.

1,760

1,880

2,100

2,100

2,120

2,050

,830

,900

,760

,800

.700

,800

,800

,730

,730

,740

,770

,760

,730

,740

,810

,940

,210

,170

,250

,190

,100

,030

,010

,920

,820

59,250

1,911

-

"

Feb.

2.020

2,100

2,090

2,090

2,110

2,120

2,030

3,350

3,310

3,560

3,350

3,130

3,130

3,310

3,460

3,480

*3,580

3,580

3,600

3,650

3,480

3,590

5.740

3,720

3,580

5,560

3,470

5,400

-

-

-

87,590

5,128

-

-

Mar.

5,510

3,210

3,130

2,990

2,920

2,800

2,760

2,620

2,420

2,370

2,540

2,400

2,550

2,620

2,930

5,240

3,380

3,530

3,540

4,060

4,680

*4,250

3,900

3,760

3,640

3,560

5,150

5,270

5,410

5,680

5,550

101,930

5,288

-

-

Apr.

7,420

8,180

*11,400

13,600

15,200

16.900

16,100

14,700

13,600

12,900

*12,600

12,900

14,000

14,400

14,400

14,000

13,100

12,000

11,000

10,200

9,340

8,370

7,530

7,460

7,510

9,210

9,460

9,720

10,000

9,920

-

347,120

11,570

-

May

9.550

9,240

8,270

7,620

6,980

6,430

5,770

5,040

4,580

4,040

5.8OO

4,250.

4,230

4,260

4,070

3,740

3,580

3,400

3.E70

5,150

5,040

2,990

2,790

2,860

5,140

2,990

2,870

2,990

5,500

5,760

5,940

159,920

4,514

-

-

June

4,120

4,010

3,770

3,540

3,170

3,070

2,740

2,100

1,840

1,730

1,630

1,520

1,460

1,400

1,570

1,810

1,800

1,840

1,810

1,730

1,660

1,480

1,340

1,380

1,360

1,220

1.140

1,500

1,570

1,350

-

60,260

2,009

-

"

July

1,220

1,150

1,140

1,110

1,370

1,620

1,620

1,520

1,570

1.040

1,350

1,250

1,720

1,950

2,050

1,950

1,950

1,880

2,070

2,690

2,870

2,930

2,690

2,090

1,840

1,730

1,700

1,460

1,900

2,200

5,000

56,630

1,827

-

-

Aug.

2,800

5.000

2,700

2,400

1,900

1,600

1,500

1,250

1,400

1,500

1,060

1,120

1,180

1,080

980

1,250

1,400

1,700

1,880

1,900

1 , 500

1,200

1,640

2,000

2,200

1,900

1,600

2,000

2,120

1,800

1,600

52,950

1,708

-

-

Sept.

,500

,600

,750

,740

,700

,70O

,900

,400

.500

* ,410

,210

,360

,830

,590

,520

,480

,450

,470

,450

,430

,330

,240

,260

,210

,200

,280

,250

,250

,200

.200

-

48,010

1,600

-

-

Calendar year 1950: Max 17,000 Min 420 Mean 2,874 Cfsm 2.21 In. 30.07

Water year 1950-51: Max 16,900 Min 447 Mean 3,506 Cfsm 2.70 In. 36.67

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 26 to Feb. 28. 

to Sept. 9; discharge computed on basis of records for nearby stations.

No gage-height record July 27
SACO RIVER BASIN 

Little Ossipee River near South Limington, Maine

79

Location. Lat 43°41'15", long. 70°40'05", on right bank just upstream from highway bridge, 

a miles southeast of South Limington, York County, and 4 miles upstream from mouth.

Drainage area. 161 sq mi.

Records available.--August 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 275 ft (from topographic map).

Average discharge. 11 years, 255 cfs.

Extremes.--Maximum discharge during year, 2,940 cfs Apr. 4 (gage height, 5.47 ft); mini- 

 mum, 73 cfs Oct. 1 (gage height, 1.87 ft).

1940-51: Maximum discharge, that of Apr. 4, 1951; minimum, 7.3 cfs July 23, 1941 

(gage height, 1.30 ft).

Maximum discharge known, 8,530 cfs Mar. 19, 1936, at Ledgemere powerplant 4 miles 

upstream.

Remarks.--Records excellent except those for periods of fragmentary gage-height record, 

wnicn are good, and those for periods of ice effect, backwater from logs, or no gageheight record, which are fair. Flow regulated by Little Ossipee Lake and Balch Pond 

(combined capacity, 351,000,000 cu ft) and by powerplants above station.

Rating table, water year 1950-51, except periods of Ice effect or backwater from 

logs (gage height, in feet, and discharge, In cubic feet per second)

1.9 

2.1 

2.3

135

202

322

3.0 

3.6 

4,0 

4.5 

5.4

520

920

1,250

1,720

2,640

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

Cf sm

In.

Oct.

78

83

88

88

88

88

88

90

90

93

115

151

206

232

213

192

174

157

141

126

115

106

105

flOl

96

90

f85

83

80

IS

16

3,594

116

-

"

Nov.

76

76

76

76

98

120

129

132

126

120

112

103

98

93

90

93

96

98

129

129

138

184

195

188

181

770

1.410

1,200

1,020

936

-

8,292

276

-

~

Dec.

800

600

462

397

411

431

382

380

1,110

1.640

1,420

1,130

890

662

531

462

411

382

*373

359

336

313

309

309

b305

b285

b245

224

217

220

232

16,228

523

-

~

Jan.

b240

b240

259

288

b335

336

322

b290

b290

b285

b275

275

275

b280

305

b345

b360

b350

340

331

327

b325

b300

340

618

642

b485

b375

305

b285

245

10,268

331

-

"

Feb.

f290

305

295

290

280

280

465

625

600

565

520

465

425

395

375

360

*f390

397

488

582

542

554

756

6¥T

570

531

542

559

-

-

-

13,140

469

-

"

Mar.

515

483

b450

431

411

402

402

411

406

378

368

392

509

576

868

1,180

1,060

1,000

905

1,020

1.620

1,500

1,140

920

845

800

694

630

655

721

1,160

22,852

737

-

~

Apr.

2,100

1 , 850

1,860

2.810

2,360

1,590

1,290

1 , 020

850

750

*750

720

660

685

660

590

575

565

550

560

550

505

520

575

570

680

770

660

570

525

~

28,720

957

-

"

May

472

421

382

392

350

318

300

292

275

263

251

267

292

288

275

279

279

279

271

263

255

263

259

251

279

283

263

275

327

336

305

9,305

300

-

"

June

263

235

224

213

*209

209

213

217

206

198

181

167

157

151

151

167

195

220

239

228

206

184

178

174

174

164

154

*151

145

141

-

5,714

190

-

"

July

145

151

154

161

167

167

161

151

141

132

126

126

161

195

202

195

184

167

167

198

243

251

228

202

181

164

154

154

170

198

217

5,413

175

-

"

Aug.

220

220

202

188

178

167

157

148

145

135

132

126

120

118

112

109

112

118

120

120

126

145

148

148

138

132

132

148

151

148

138

4,501

145

-

"

Sept.

135

135

154

184

206

209

232

247

235

202

181

161

148

135

129

126

123

118

118

123

135

164

*154

157

161

167

174

174

167

157

"

4,911

164

-

"

Calendar year 1950: Max 1,640 Min 39 Mean 270 Cfsm - In. -

Water year 1950-51: Max 2,810 Min 76 Mean 364 Cfsm - In. -

Peak discharge (base, 1,000 cfs). --Apr. 4 (4:30 p.m.) 2.940 cfs (5.47 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice. 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

Mote. No gage-height record Oct. 25, 26, Feb. 3-16; discharge computed on basis of records for 

nearby stations. Stage-discharge relation affected by logs Apr. 6-30.
3U MOUSAM RIVER BASIN

Mousam River near West Kennebunk, Maine

Location. Lat 43°25'05", long. 70°39'35", on right bank 100 ft upstream from highway 

 FTTage, li miles downstream from Middle Branch, and 4 miles west of West Kennebunk, 

York County.

Gage.--Water-stage recorder. Altitude of gage is 170 ft (from topographic map). 

Average discharge. 12 years, 159 cfs.

Extremes.--Maximum discharge during year, 1,580 cfs Apr. 3 (gage height, 4.25 ft); mini-

 mum, 9.4 cfs Wov. 16, Dec. 23 (gage height, 0.45 ft).

1939-51: Maximum discharge, 2,090 efs Apr. 13, 1940 (gage height, 5.05 ft); minimum, 1.1 cfs Aug. 22, 1941; minimum gage height, 0.29 ft Nov. 15, 16, 1947.

Remarks. Records good except those below SO cfs and those for periods of no gage-height

 record, which are fair. Plow regulated by Square Pond and Mousam and Estes Lakes (combined usable capacity, about 700,000,000 cu ft) and powerplants above station.

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

in cubic feet per second)

0.4

.5 

.6

Oct. 1 to Apr. 3

89

109

134

195

266

345

563

815

1,150

.9

1.0

1.1

1.2

1.3

108

135 4.0

690

1,450

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

Day

1

Z

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

19

102

20

21

23

31

52

15

14

31

48

76

134

158

132

114

148

118

94

98

11

16

130

120

120

110

100

14

33

100

14

2,216

71.5

-0.5

Nov.

30

47

110

14

80

132

55

77

74

120

25

42

100

87

86

9.8

87

10

19

33

168

220

116

103

112

410

668

454

407

321

"

4,216.8

141

+33.8

Dec.

262

192

176

209

240

220

188

250

930

760

583

489

399

321

262

209

186

226

*168

104

96

90

23

70

109

180

180

170

150

110

110

7,665

247

+59.2

Jan.

110

190

190

180

170

120

210

210

200

200

140

144

124

103

210

210

190

178

170

144

130

229

220

210

210

190

180

130

240

240

230

5,602

181

-2.1

Feb.

220

210

130

190

250

330

430

640

530

450

350

420

460

480

470

430

410

*420

535

445

378

428

498

378

305

370

341

333

-

-

-

10,831

387

+8.5

Mar.

289

£66

215

176

270

233

226

262

251

192

163

313

321

390

854

708

573

603

549

730

958

723

593

498

512

516

428

394

386

378

860

13,830

446

+31.0

Apr.

1,110

854

1,110

1,450

1,090

879

699

622

521

*420

526

508

517

503

485

471

441

412

383

371

323

315

408

399

383

494

458

391

379

375

-

17,297

577

-2.7

May

335

307

287

271

239

247

275

251

231

228

220

228

224

247

195

130

154

146

111

116

156

134

128

166

184

152

132

209

231

205

188

6,327

204

-27.4

June

174

152

141

*255

136

124

122

134

90

85

124

126

102

82

95

85

103

148

138

132

116

102

104

171

192

154

126

*114

108

119

-

3,854

128

-11.0

July

127

127

111

94

106

99

90

79

85

66

60

75

99

79

74

102

100

85

164

245

174

147

158

160

142

136

132

99

144

186

170

3,715

120

-4.9

Aug.

148

142

162

122

92

112

77

83

86

83

61

66

112

97

90

94

110

83

76

120

130

156

124

112

5_8_

74

166

154

132

114

108

3,344

108

-34.8

Sept.

94

108

202

245

188

154

160

119

108

148

142

114

110

93

77

103

134

120

100

91

95

*55

76

136

122

114

108

118

33

47

-

3,514

117

-35.1

Adjusted for change In reservoir

Mean 

Cfsm 

In.

71.0 

0.676 

0.78

175 

1.67 

1.86

Calendar year 1950: 

Water year 1950-51:

306 

2.91 

3.36

179 

1.70 

1.96

396 

3.77 

3.93

477 

4.54 

5.23

574 

5.47 

6.10

177 

1.69 

1.95

Observed

Max 930 Min 9.8 Mean 139 

Max 1,450 Mln 9.8 Mean 226

117 

1.11 

1.24

115 

1.10 

1.27

73.2 

0.697 

0.80

81.9 

0.780 

0.87

Adjusted

Mean 149 Cfsm 1.42 In. 19.17 

Mean 227 Cfsm 2.16 In. 29.35

made on this day. 

t rhange in reservoir ontents, equivalent in cubic feet per second, in Square Pond and Mousam and

Estes Lakes.

Note. Ho gage-height record Oct. 24-26, Nov. 19, 20, D> 

charge computed on basis of records from power station.

27 to Jan. 9, Jan. 24 to Feb. 17; dls-
PISCATAQUA RIVER BASIN

Salmon Palis River near South Lebanon, Maine

Drainage area.--147 sq mi.

Records available.--November 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 179.6 ft above mean sea level, datum of

Extremes.--Maximum discharge during year, 2,340 cfs Apr.

fs Aug. 13 gage height, 1.24 ft).

1928-51: Maximum discharge, £,490 cfs Mar. 19, 1936 (gage height, 12.31 ft); minimum, 4.7 cfs Aug. 28, 1950.

Remarks.--Records good. Plow partly regulated by powerplants above station and by Great 

East and Lovell Lakes, and Horn, Wilsons, and Milton Ponds (also controls Northeast 

and Town House Ponds), combined capacity, 1,280,000,000 cu 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

(t)

Oct.

27

48

68

70

72

72

63

24

40

77

95

108

146

108

30

57

70

72

90

81

9E

25

48

77

74

88

*72

63

20

70

65

2,135

68.9

-10.4

IJov .

81

79

77

72

42

116

as

97

102

95

90

27

70

92

1OO

100

108

92

32

77

156

196

120

30

106

540

410

340

420

380

-

4,404

147

+96.7

Dec .

340

£75

£50

265

275

265

250

320

1 , 510

1,710

1,410

1 , 010

570

330

300

240

235

255

295

*280

260

250

E40

100

156

295

250

235

235

235

140

12,781

412

+ 69.2

Jan.

140

240

280

300

32U

275

158

2EO

285

320

325

320

280

126

300

355

345

335

330

E95

170

295

365

475

580

330

240

148

305

335

520

9,352

302

-33.3

Feb.

510

450

335

148

370

425

445

805

660

570

450

545

515

525

E15

510

405

*405

675

610

545

640

650

4B5

365

460

525

530

-

-

-

14,073

503

+ 22.9

Mar.

4M5

470

465

450

445

450

455

480

450

395

420

*445

460

490

755

420

330

310

295

720

1,420

1,350

970

620

635

560

425

420

435

445

1,340

17,8SO

575

+ 79.2

Apr.

2,270

1,390

1 , 650

2,260

1,920

1,330

665

575

640

*5t'5

745

8uO

31O

800

760

710

570

500

495

455

320

380

495

610

510

635

775

595

395

395

-

25,620

854

H20.1

May

370

350

350

280

250

215

225

220

235

270

270

300

188

215

225

200

176

205

170

77

146

156

146

180

220

148

68

250

330

445

415

June

250

£65

"£65" £80

210

176

140

138

95

_56_

114

110

122

106

122

120

61

97

130

110

100

92

72

132

170

126

114

110

110

85

-

July

65

43

32

44

56

56

77

81

132

79

88

102

176

79

59

110

114

110

172

270

138

42

£30

£10

140

126

205

138

102

176

180

Aug.

158

158

136

126

31

136

136

122

138

114

102

31

10?

156

100

114

150

130

35

138

136

148

138

ISO

61

56

158

150

140

126

1E6

Sept.

240

61

81

156

132

150

156

104

50

*162

158

122

120

130

9£

25

132

190

146

176

210

108

_20

148

215

205

210

205

110

27

-

7,295 4,078 3,632 3,656 4,043

235 136 117 118 135

-9.4 +1.9 -9.4 -56.9 -66.7

Mean 5

tTsir 0

In. i

6.5 244

398 1.6K

.46 1.65

" al-udar

V.atf-r /ei.ear 1950:

_r 1350-51:

481 269

5.27 1.53

3.77 2.11

526 654

3.53 4.45

3.73 5.13

874

5.95

6.64

226

1.54

1.76

Observed

Mix 1,710 ? In 13 Mpan 193

Max 2,260 Min 20 Mean 296

138

0.939

1.05

108 t

0.735 0

0.85 L

1.1 68.3

416 0.465

.48 0.52

Adjusted

Mean

Mean

£12

306 Cff.,1 £.08

In 19.63

In. 28.37

* Discharge measurement made on this lay.

t Pliantr e in reservoir contents, eqi

Lanes, and Horn, Wilsons, and Milton

ivalent in cutlc feet pe=r sec one , in Gr 

Ponds (controls also Northeast and Town

at East and Lovell

House Ponds) .
PISCATAQUA RIVER BASIN 

Oyster River near Durham, N. H.

Location. --Lab 43°08'55", long. 70°58'00", on left bank 200 ft upstream from bridge on

 U. a. Highway 4, Z\ miles west of Durham, Strafford County, and 7 miles upstream from 

mouth.

Drainage area. --12. 1 sq mi.

Records available. --December 1934 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 70 ft (from topographic map ) .

Average discharge. 16 years (1935-51), 17.4 cfs.

Extremes. Maximum discharge during year, 261 cfs Feb. 8 (gage height, 2.71 ft); minimum,

 U.bV cfs Oct. 4,5.

1934-51: Maximum discharge, 548 cfs Mar. 19, 1936 (gage height, 7.45 ft), by computation of peak flow over dam; minimum, 0.39 cfs Aug. 9-11, 1949.

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

wtilcn are fair.

Rating tables, wat 

height, in f

r year 1950-51, except periods of ice effect (gage 

et, and discharge, in cubic feet per second)

Oct. 1 to Nov. 26 Nov. 27 to Sept. 30

0.07 0.70

.10 .95

.2 2.05

.3 3.7

.4 5.9

0.6 

.8 

1.0 

1.5 

2.0

22

35

78

141

0.15 

.2 

.3

.5 

.7

1.5 

2.15 

3.9 

9.2

17

1.0 36

1.5

2.0 144

2.5 222

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

Tot a:

Mean

Cfsm

In.

Oct.

0.86 

.82

.78

*.70

.70

.74

.78

.82

.82

2.8

11

8.5

9.0

5.8

4.3

3.5

3.2

3.0

2.8

2.5

2.25

2.1

2.1

2.25

2.35

2.2

2.05

1.95

2.05

2.5

2.35

87.57

2.82

0.233

0.27

Nov.

2.1 

2.05

*1.95

1.95

13

8.4

5.6

4.8

4.4

4.1

3.6

3.3

3.1

2.8

2.7

2.7

2.9

2.8

2.6

2.6

28

16

10

8.8

7.9

21

68

55

44

34

-

440.15

14.7

1.21

1.35

Dec.

27 

22

19

19

28

*23

19

48

158

105

76

60

48

38

30

28

25

23

19

16

14

12

13

13

15

11

8.3

6.0

5^6

7.0

8.3

944.2

30.5

2.5E

2.90

Jan.

8.6 

8.9

12

26

20

18

15

13

13

13

14

13

12

11

14

18

18

18

17

17

21

20

15

51

48

43

31

22

19

16

14

605.5

19.5

1.61

1.86

Feb.

M22

19

17

16

38

96

45

29

25

24

29

35

29

25

21

105

145

75

61

90

79

55

48

44

46

44

-

-

1,296

46.3

3.83

3.98

Mar.

33

*31

27

26

39

39

37

38

33

2G

SA

32

35

73

*161

98

79

70

58

125

120

93

76

82

73

59

46

43

40

38

136

1,890

61.0

5.04

5.81

Apr.

122 

82

145

130

85

66

55

48

46

48

43

40

48

47

41

35

36

31

27

25

22

20

33

31

31

50

38

31

26

23

-

1,505

50.2

4.15

4.63

May

20 

18

*15

15

14

13

12

12

11

10

15

33

25

19

15

13

11

11

9.6

8.9

8.9

8.9

8.0

28

27

19

16

60

50

36

27

589.3

19.0

1.57

1.81

June

20 

16

14

12

11

10

8.8

7.7

6.8

6.2

*5.5

4.9

5.2

6.0

9.0

14

10

9.0

7.0

6.0

5.0

4.6

4.1

9.0

7.0

6.0

5.5

5.0

4.5

8.0

-

248.2

8.27

0.683

0.76

July

12 

8.9

*6.6.

5.0

4.6

4.2

3.7

3.1

2.6

2.2

2.0

4.3

14

7.1

4.8

3.4

2.8

2.6

3.7

6.0

3.8

2.8

2.5

2.15

1.75

1.65

2.15

2.7

6.0

4.2

2.9

136.20

4.39

0.363

0.42

Aug.

3.4

2.8

2.2

3.3

2.3

1.85

1.55

1.8

2.5

4.3

5.1

3.0

2.6

2.15

2.6

6.0

16

8.6

6.0

*4.9

5.2

6.3

4.6

3.6

3.1

2.8

8.5

5.2

3.7

3.0

2.5

131.45

4.24

0.350

0.40

Sept.

8.5 

17

30

17

11

8.9

11

8.3

6.5

5.4

4.8

4.4

3.8

3.4

3.1

3.3

3.2

*2.9

2.7

2.35

2.3

Z^Z

2.3

2.35

*2.6

3.8

2.9

2.9

2.5

2.2

183.60

6.12

0.506

0.56

Calendar year 1950: Max 167 Mln 0.46 Mean 15.2 Cfsm 1.26 In. 17.04

Water year 1950-51: Max 161 Min 0.70 Mean 22.1 Cfsm 1.83 In. 24.75

se. 170 cfsl. Dec. 9 (9 to 11 a.m.) 176 cfs (2.225 ft); Feb. 8 (1 a.m.) 261 cfs 

4:30 to 5 p.m.) 187 cfs (2.29 ft); Mar. 14 (10 to 11 p.m.) 226 cfs (2.525 ft); 

.m.) 187 cfs (2.29 ft); Mar. 31 (11 a.m. to 12:30 p.m.) 183 cfs (2.265 ft); Apr. 

197 cfs (2.35 ft).

Peak discharge (bas 

(2.71 ft); Feb. 18 (4 

Mar. 20 (l to 1:30 p.m.) cs . 

3 (12:30 to 1 p.m.) 197 cfs (2.35 ft).

*
PISCATAQUA RIVER BASIN 83

Lamprey River near Newmarket, N. H.

Location. Lat 43°06'05", long. 70°57'20", on right bank 200 ft upstream from Packers 

Taxnr, 2 miles northwest of Newmarket, Rockingham County, and 4.6 miles upstream from

Drainage area. 183 sq mi.

Records available. July 1934 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 40 ft (from topographic map).

Average discharge.--17 years, 262 cfs.

Extremes.--Maximum discharge during year, 1,700 cfs Apr. 5 (gage height, 6.71 ft); mini-

^J 4 " 5^ Maximum discharge, 5,490 cfs Mar. 20, 1936 (gage height, 14.88 ft), from

S^ht ?2rfiq |*tended above 2,500 cfs on basis of computation of flow over dam at gage

height 14.69 ft; minimum daily, about 1 cfs Oct. 21, 1935.

Remarks. Records good except those for periods of ice effect, which are fair Plow reguTared by Pawtuckaway and Mendums Ponds (combined capacity, about 600,000,000 cu ft).

Rating table, water year 1950-51, except periods of loe effect (gage 

height, In feet, and dlsciharge, in cubic feet per second)

0.6 

.7

1.1 

1.5

12

16

22

46

95

2.0 

3.0 

4.0 

5.0 

7.0

176

378

640

970

1,850

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

Total

Mean

Cfsm

In.

Oct.

14

11

30

*80

81

81

78

78

77

97

181

154

226

200

169

144

124

110

100

92

88

78

77

74

73

71

64

61

50

49

47

2,861

92.3

0.504

0.58

Nov.

43

*42

35

37

61

91

81

78

72

60

55

53

48

50

43

42

42

35

35

35

143

181

161

144

123

613

844

979

891

643

~

5,760

192

1.05

1.17

Dec.

501

403

341

302

347

*343

*328

392

1,040

1,150

1.170

938

706

565

46O

396

358

328

b290

b290

b265

b242

b240

244

b242

b205

173

157

157

174

192

12,939

417

2.28

2.63

Jan.

202

2O2

*221

296

334

328

315

256

248

264

266

260

256

238

256

288

298

313

319

315

338

319

294

444

555

527

472

376

315

300

292

9,687

312

1.70

1.97

Feb.

309

*390

411

408

413

378

392

834

748

865

757

560

472

488

455

435

387

706

,310

,520

,210

,090

,030

924

784

637

579

562

-

-

-

18,854

673

3.68

3.83

Mar.

b495

442

406

380

415

425

425

440

423

371

336

347

438

578

1,230

*1,170

1,100

926

764

977

*1,280

1,550

1,230

1,050

954

918

851

745

658

602

908

22,614

729

3.98

4.60

Apr.

1,290

1,350

1,510

1.690

1,690

1,490

1,130

890

748

70O

736

724

730

724

679

614

574

527

491

450

406

374

396

435

455

517

511

491

440

392

-

23,154

772

4.22

4.71

May

349

319

345

341

321

307

296

286

274

264

268

383

387

315

264

262

260

242

222

204

185

*178

168

242

319

3O2

280

482

509

501

413

9,488

306

1.67

1.93

June

324

262

219

190

174

156

139

121

104

95

87

*98

104

106

140

144

150

144

145

150

132

118

94

96

98

102

123

139

126

134

"

4,214

140

0.765

0.86

July

123

104

94

82

74

71

67

62

56

117

164

174

274

234

211

183

*173

169

166

190

171

171

157

144

137

108

81

77

113

110

loo

4,157

134

0.732

0.84

Aug.

107

116

102

100

77

72

60

51

49

54

62

51

49

86

121

152

202

169

168

156

152

162

147

137

128

118

116

106

96

89

80

3,335

108

O.59O

0.68

Sept.

84

104

178

173

164

142

140

132

113

96

85

74

67

60

61

60

57

*54

50

46

42

37

33

29

*29

41

41

41

41

42

-

2,316

77.2

0.422

0.47

Calendar year 195O: Max 1,590 Min 12 Mean 222 Cfsm 1.21 In. 16.48

Water year 1950-51: Max 1,69O Min 13 Mean 327 Cfsm 1.79 In. 24.27

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice
MERRIMACK RIVER BASIN

East Branch Pemigewasset River near Lincoln, N. H.

Location. Lab 44°03'40", long. 71°37'00", on right bank 1 1/8 miles downstream from 

Hancock Branch and 2f miles northeast of Lincoln, Qrafton County.

Drainage area.--104 sq mi.

Records available. November 1928 to September 1951..

Gage. Water-stage recorder. Altitude of gage is 1,020 ft (from topographic map).

Average discharge. 23 years, 297 cfs.

Extremes. Maximum discharge during year, 14,700 cfs Nov. 26 (gage height, 9.89 ft), 

rrom rating curve extended above 6,200 cfs on basis of computation of flow over dam 

at gage height 10.3 ft; minimum daily, 56 sfs Jan. 30, 31.

1928-51: Maximum discharge, 17,000 cfs Mar. 19, 1936 (gage height, 9.80 ft), by 

computation of peak flow over dam; maximum gage height, 10.51 ft Mar. 9, 1942 (ice 

jam); minimum daily discharge, 13 cfs Feb. 7-12, 1948.

Remarks.--Records good except those for periods of ice effect, which are fair. 

Revisions. W 726: Drainage area.

Rating tables, water year 1950-51, except periods of Ice effect (gage 

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

54

110

£95

540

1,080

5.5 1,750

6.0 2,600

7.0 4,770

B.O 7,660

3.4 

3.7

4.1 

4.5

281

516

27 to Sept. 30

4 5.0 940

Z 5.5 1,540

6.0 2,340

6.5 3,360

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

Cfsm

In.

Oct.

71

*69

66

69

66

66

64

64

64

76

312

340

589

333

£54

215

190

180

160

150

131

123

123

131

160

175

131

120

131

145

123

4,891

158

1.52

1.75

Nov.

110

107

103

163

2,010

*746

440

367

331

307

277

254

230

215

195

240

215

195

170

213

1,300

477

363

319

303

6 , 1 60

1,850

1,530

1,230

824

"

21,244

708

6.81

7.60

Dec.

625

*509

461

1,690

5,240

1,040

782

705

1,160

825

658

592

495

422

375

330

300

280

200

170

185

180

185

170

140

110

96

89

85

98

120

16,317

526

5.06

5.83

Jan.

115

110

*115

150

160

115

100

86

77

77

86

79

73

69

82

100

79

76

73

77

80

69

74

84

130

82

70

64

66

*56

56

2,730

88.1

0.847

0.98

Feb.

74

150

160

120

100

90

96

420

260

210

195

180

170

185

160

150

145

15u

145

140

135

140

135

130

130

115

126

118

-

-

-

4,329

155

1.49

1.55

Mar.

100

110

105

104

*99

96

99

135

110

100

110

104

110

112

107

104

99

99

96

115

110

101

91

33

94

89

*87

99

161

263

622

3,924

127

1.22

1.40

Apr.

651

592

1,330

1,370

644

495

524

592

684

1,020

1,390

1,250

1,170

931

816

702

569

482

441

428

391

363

1,450

977

882

2.520

1,370

1,230

1,850

1,750

~

28,864

962

9.25

10.32

May

1,190

1,140

941

711

*634

625

*609

634

911

987

658

684

642

554

663

975

940

702

569

577

658

584

509

461

410

341

336

*1,620

816

617

488

22,186

716

6.88

7.93

June

410

363

330

301

310

259

233

*214

194

177

163

154

144

144

151

151

132

124

118

104

99

94

126

135

115

99

91

104

102

138

~

5,279

176

1.69

1.89

July

141

124

96

86

224

272

174

132

110

99

91

354

457

221

163

150

£25

*170

476

434

246

202

177

154

138

141

170

204

345

214

170

6,360

205

1.97

2.27

Aug.

246

198

181

404

250

194

170

163

157

138

124

115

121

110

203

197

£74

*206

188

160

265

594

320

255

225

206

206

243

184

160

148

6.605

213

2.05

2.36

Sept.

209

166

198

177

144

*176

622

320

237

198

180

170

154

144

202

200

157

138

126

118

115

107

159

135

135

160

*129

304

188

157

-

5,625

188

1.81

2.01

Calendar year 1950: Max 6,160 Min 46 Mean 342 Cfsm 3.29 In. 44.61

Water year 1950-51: Max 6,160 Min 56 Mean 352 Cfsm 3. 38 In. 45.89
MERRIMACK RIVER BASIN

oo

Pemigewasset River at Woodstock, H. H.

Location. Lat 43°58'35", long. 71°40'50", on right bank 0.2 mile east of Woodstock, 

trrarton County, and 0.7 mile upstream from Eastman Brook.

Drainage area.--193 sq mi.

Records available. October 1939 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 615 ft (from topographic map).

Average discharge. 12 years, 505 cfs.

Extremes.--Maximum discharge during year, 22,800 cfs Nov. 26 (gage height, 12.05 ft), 

from rating curve extended above 9,300 efs by logarithmic plotting; minimum, 95 cfs 

Oct. 8; minimum daily, 103 cfs Oct. 8.

1939-51: Maximum discharge, that of Nov. 26, I960; minimum daily, 42 cfs Feb. 11, 

1948.

Remarks.--Records excellent except those for periods of ice effect or no gage-height recora, which are fair. Some diurnal fluctuation caused by powerplant above station.

Rating tables, water year 195O-51. 

height, in feet, and dischai

Oct. 1 to Nov. 26

'ge, in

 pt periods of ice effect (gage 

ubic feet per second)

2.3 85

2.5 128

3.0 282

3.5 516

4.0 615

5.0 1,630

6.0 2,850

7.0 4,550

9.0 9,700

Nov

2.5 120

3.0 269

3.5 477

4.0 780

27 to sept. 30

5.0 1,620

6.O 2,850

7.0 4,550

8.0 6,800

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

El

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sra

In.

Oct.

126

*123

119

114

116

112

107

103

112

125

512

739

1.440

657

419

335

290

271

250

230

216

198

191

220

250

306

246

210

230

278

*253

8,898

287

1.49

1.71

Nov.

216

201

194

241

3,850

*1,420

808

614

516

454

409

366

322

302

275

271

314

294

253

270

2,120

900

580

500

429

9,060

3,250

2,330

2,000

1,270

"

34,029

1,134

5.88

6.56

Dec.

951

*766

671

1,550

6.210

1,730

1,180

1,100

1,990

1,320

1,020

919

752

627

520

490

450

410

330

270

290

280

290

270

240

190

170

160

150

170

220

25,686

829

4.30

4.95

Jan.

210

205

*215

220

500

240

210

190

160

160

175

165

145

145

170

220

165

160

155

165

180

160

150

160

290

190

160

140

145

130

120

5,600

181

0.938

1.08

Feb.

160

260

350

27O

230

190

260

950

500

400

370

340

310

350

300

280

270

280

270

270

250

260

250

240

240

215

225

235

-

-

"

8,525

304

1 58

1.64

Mar.

190

210

200

195

*190

180

185

260

215

180

200

190

227

255

269

258

262

73

52

99

99

62

21

34

34

18

*196

227

357

630

1.620

8,988

290

1.50

1.73

Apr.

1,690

1,490

3,240

2,800

1,380

1,140

1,320

1,460

1,540

2,270

3,000

2,690

2,530

1,920

1,640

1,360

1,100

911

810

788

759

671

3,240

2,020

1,73O

4.450

2,550

2,190

3,040

2,940

-

58,669

1,956

10.1

11.31

May

1,940

1,860

1,500

1,100

983

975

*927

975

1,220

1,540

1,010

al,100

1,060

848

951

1,380

1,400

1,040

818

795

871

818

710

621

573

477

449

2,780

1,410

991

738

33,860

1,092

5.66

6.52

June

590

502

463

435

468

386

349

*318

80

66

41

27

18

11

31

27

204

195

183

166

155

147

180

234

198

163

147

155

155

224

"

7,918

264

1.37

1.53

July

231

221

166

139

344

510

306

218

180

152

142

417

755

349

248

254

449

326

880

885

432

326

276

234

208

220

329

424

794

430

*306

11,151

360

1.87

2.15

Aug.

379

434

302

850

465

329

276

262

273

234

204

186

201

177

296

285

487

*366

326

258

378

1.150

562

417

357

329

302

399

299

252

227

11,262

363

1.88

2.17

Sept.

295

262

357

322

244

315

1.220

596

395

322

280

266

238

218

290

367

262

221

201

186

177

168

237

256

208

291

*221

550

350

269

"

9,584

319

1.65

1.85

Calendar year 1950: Max 9,060 Min 76 Mean 586 Cfsm 3.O4 In. 41.24

Water year 1950-51: Max 9,060 Min 103 Mean 614 Cfsm 3.18 In. 43.20

Peak discharge (base, 7,100 cfs). --Nov. 26 (11:30 a.m.) 22,800 cfs (12. OS ft); Dec. 5 (1:30 a.m.)

15,700 cfs (10.63 ft .

___eharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of we 

and records for East Branch Pemigewasset River near Lincoln. 

Note.--Stage-discharge relation affected by ice Dec. 15 to

r records, recorded range in stage, 

12, Mar. 30.
MERRIMACK RIVER BASIN ob

Baker River at Wentworth, N. H.

Location.--Lat 43°52'05", long. 71°54'35", on left bank 50 ft downstream from highway 

 bridge in Wentworth, Grafton County, and 0.2 mile upstream from P.ond Brook.

Drainage area. 58.8 sq mi.

Records available.--October 1940 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 580 ft (from topographic map).

Average discharge.--11 years, 106 cfs.

Extremes. Maximum discharge during year, 4,140 cfs Nov. 26, from rating curve extended 

above 1,500 cfs; maximum gage height, 7.19 ft Dec. 5; minimum discharge, 12 cfs Oct. 

7-10.

1940-51: Maximum discharge, 12,000 cfs June 14, 1942, by slope-area determination; 

maximum gage height, 14.83 ft June 14, 1942; minimum discharge, 5.2 cfs Mar. 1, 1944, 

Sept. 15, 1948.

Remarks. Records good except those for periods of ice effect, 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 Dec. 4)

Oct. 1 to Dec. 4

2.6 

2.8 

3.0 

3.4

4.2 

4.6 

5.0 

5.5 

6.0

150

256

445

900

1,680

Dec. 5 to Sept. 3O

2.8

2.9 

3.2 

3.5 

3.8 

4.1

83

122

4.4 

4.7 

5.0 

6.0 

7.0

182

275

440

1,360

2,770

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

Bay

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

15

*15

14

14

14

13

13

12

T5

15

85

121

204 -5?

52

40

34

32

29

27

24

23

24

32

34

40

32

28

30

34

*31

1,175

37.9

0.645

0.74

Nov.

27

26

25

28

385

162

88

67

57

52

46

41

38

36

33

33

40

38

32

33

206

110

67

58

52

1,410

 150

356

316

193

-

4,515

150

2.55

2.86

Dec.

*145

116

106

319

1,040

279

175

176

356

206

173

159

129

104

90

84

79

73

55

47

51

51

55

55

46

31

3T

34

36

40

42

4,386

141

2.40

2.77

Jan.

41

40

40

*55

80

61

52

47

41

40

41

41

37

36

43

54

43

42

41

46

52

47

48

82

125

77

60

51

45

35

31

1,574

50.8

0.864

1.00

Feb.

39

71

84

62

50

*46

80

300

T55

105

91

81

80

96

84

73

64

69

82

77

71

68

64

57

58

55

61

68

_

-

2,289

81.8

1.39

1.45

Mar.

55

62

54

52

50

*48

52

68

56

47

50

54

68

100

180

130

125

119

110

122

110

88

76

87

112

88

82

107

*182

*364

915

3,811

123

2.09

2.41

Apr.

649

703

*1,520

*764

408

388

531

555

523

634

775

667

685

485

382

311

256

217

214

217

200

182

ITslf

375

366

802

388

348

448

353

-

15,005

500

8.50

9.49

May

253

245

190

*147

*139

136

130

125

138

139

122

200

164

125

129

139

136

112

92

87

86

81

72

67

60

52

W

572

154

231

139

4,778

154

2.62

3.02

June

~53 100

76

70

77

60

*52

46

41

36

32

30

28

28

42

40

33

29

27

23

20

19

27

36

28

24

20

19

23

52

-

1,221

40.7

0.692

0.77

July

53

40

28

22

58

66

43

28

22

19

17

47

79

38

26

97

224

98

255 '206"

86

58

49

37

30

26

26

113

*217

93

58

2,261

72.9

1.24

1.43

Aug.

72

64

44

59

47

35

29

28

33

26

23

20

23

20

20

46

81

58

47

37

54

165 ^75

54

46

62

48

47

35

28

25

1,454

46.9

0.798

0.92

Sept.

28

28

73

*56

38

43

"96 160

56

44

35

34

28

24

41

50

34

27

24

21

20

19

2S

30

32

50

32

*71

48

37

-

1,307

43.6

0.741

0.83

Calendar year 1950: Max 1,960 Min 6.O Mean 104 Cfsra 1.77 In. 24.11

Water year 195O-51: Max 1,520 Min 12 Mean 120 Cfsra 2.04 In- 27.69

Peak discharge (base, 1,600 cfs). Nov. 26 (10 a.m.) 4,140 cfs (7.09 ft); Dec. 5 (12:30 a.m.) 

3,070 cfs (7.19 ft); Apr. 3 14:30 p.m.) 3,060 cfs (7.18 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 21, 22, 25, 31, Jan. 3, 8, 13, 14, 21, 22, 

25, Jan. 29 to Feb. 4, Feb. 7-17, 25-28, Mar. 8-16.
MERRIMACK RIVER BASIN 

Baker River near Rumney, N. H.

87

Location.--Lat 43°47'45", long. 71"50'45", on right bank 0.3 mile upstream from Halls 

brook and if miles southwest of Rumney, Grafton County.

Drainage area.--143 sq mi.

Records available. November 1928 to September 1951.

Gage. Water-stage recorder. Concrete control since Sept. 10, 1938. Altitude of gage 

Ts 495 ft (from topographic map).

Average discharge. 23 years, 251 cfs.

Extremes. Maximum discharge during year, 7,960 cfs Nov. 26 (gage height, 9.39 ft), from 

rating curve extended above 880 cfs on basis of slope-area determinations at gage 

heights 13.03, 14.49, and 15.50 ft; minimum, 26 cfs Oct. 9, 10.

1928-51: Maximum discharge, 21,400 cfs June 15, 1942 (gage height, 15.50 ft), from 

rating curve extended above 3,800 cfs on basis of slope-area determinations at gage 

heights 13.03, 14.49, and 15.50 ft; minimum, 6.5 cfs Dec. 4, 1947, caused by ice conditions upstream.

Maximum discharge known, 25,900 cfs Nov. 3, 1927 (gage height, 17.4 ft, from floodmarks), from rating curve extended above 3,800 cfs as described above.

Remarks. Records excellent except those above 1,200 cfs, which are good, and those for 

periods of ice effect or no gage-height record, which are fair.

Revisions (water years). W 726: Drainage area. W781: 1934(M). W 871: 1932-34 

(yearly summaries only).

Rating table, water year 1950-51, except periods of ice effect (gage 

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

2.35

2.5

2.8

3.1

109

205

3.5 

4.0 

5.0

7.0

395

710

1,510

3,900

in cubic feet per second, waber 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

Tota:

Mean

Cfsm

In.

Oct.

34

32

30

29

29

29

29

27

26

3T

99

157

337

T74

112

90

79

70

64

60

55

51

50

60

68

79

70

62

59

64

62

2,218

71.5

0.500

0.58

Nov.

57

53

*51

57

559

354

198

150

126

112

99

92

83

77

72

72

81

83

74

72

288

256

159

143

129

3,590

1,280

822

779

504

-

10,472

349

2.44

2.72

Dec.

378

300

263

*321

2,270

780

504

462

850

558

450

412

340

276

225

225

205

187

140

120

122

122

131

131

109

78

55

82

83

95

100

10,404

336

2.35

2.71

Jan.

10O

96

99

*115

160

160

140

120

105

100

105

98

93

90

105

130

105

100

98

105

120

110

120

160

290

220

160

130

110

90

75

3,809

123

0.860

0.99

Feb.

100

T5U

190

160

140

*122

160

640

410

270

230

210

200

230

210

190

160

170

200

190

180

170

150

145

150

140

150

170

_

_

-

5,587

200

1.40

1.45

Mar.

140

155

*150

135

130

125

128

170

155

120

135

135

165

200

350

310

295

295

268

290

260

230

190

210

270

230

205

248

413

*825

2,350

9,262

299

2.09

2.41

Apr.

,870

,820

,740

2,490

,210

,060

,290

,490

,370

,510

,860

,740

,930

,460

1,180

992

808

675

605

605

577

534

1,350"

1,080

843

1,870

1,080

836

871

752

-

39,508

1,317

9.21

10.27

May

552

492

412

335

*300

29O

268

263

254

268

241

417

378

295

268

268

254

241

205

187

180

166

150

140

147

120 T2"8~

1,020

1,060

619

406

10,324

333

2.33

2.68

June

290 1T2"9~

201

180

180

150

*126

112

99

92

83

74

70

68

90

97

85

77

83

68

59

53

55

83

68

60

51

48

30

96

-

3,077

103

0.720

0.80

July

129

104

77

59

86

129

92

68

55

46

43 55

204

105

70

57

299

156

360

437

193

129

104

a82

a66

a60

a60

al70

a450 '2TO"

134

4,333

140

0.979

1.13

Aug.

123

123

90

99

95

74

62

60

66

57

51

46

51

46

_44

65

205

140

117

*87

153

400

ITR)

137

109

137

120

102

83

70

62

3,292

106

0.741

0.86

Sept.

64

68

193

*162

109

87

307 ZU9"

134

102

85

79

70

62

79

123

87

68

60

55

51

Bo" 48

64

59

*104

79

121

104

81

-

2,964

98.8

0.691

0.77

Calendar year 1950: Max 3,860 Min 15 Mean 245 Cfsm 1.71 In. 23.25

Water year 1950-51: Max 3,740 Min 26 Mean 288 Cfsm 2.01 In. 27.37

Peak discharge (base, 3,600 cfs). --Nov. 26 (1 p.m.) 7,960 cfs (9.39 ft); Dec. 5 (4:30 a.m.) 4,340

cfs (7.31 ft); Apr. 3 (7:30 p.m.) 7,200 cfs (9.00 ft).

Discharge measurement made on this day. 

a No gage-height record; discharge estimated 

and records for station at Wentworth.

Note. Stage-discharge relation affected by i

basis of weather records, recorded range 

Dec. 20, Dec. 26 to Mar. 15, Mar. 21-27.
MERRIMACK RIVER BASIN

Pemigewasset River at Plymouth, N. H.

Location.--Lat 43°45'35", long. 71"41'10", on right bank 150 ft downstream from bridge 

at Plymouth, Grafton County, and a third of a mile downstream from Baker River.

Drainage area.--632 sq mi.

Records available.--January 1886 to September 1951 (no winter records 1886 to 1903).

Gage.--Water-stage recorder. Datum of gage is 457.07 ft above mean sea level, datum of 

T929. Prior to Jan. 1, 1910, staff or chain gages at sites 150 and 200 ft upstream at 

present datum or datum 1.11 ft lower. Jan. 1, 1910, to Sept. 30, 1926, staff gage at 

site 200 ft upstream at present datum.

Average discharge.--48 years (1903-51), 1,355 cfs.

Extremes.--Maximum discharge during year, 28,300 cfs Nov. 26 (gage height, 14.85 ft); maximum gage height, 15.05 ft Nov. 26; minimum discharge, 86 cfs Oct. 9; minimum daily, 

178 cfs Oct. 5.

1903-51: Maximum discharge, 65,400 cfs Mar. 19, 1936 (gage height, 29.0 ft, from 

floodmarks), from rating curve extended above 33,000 cfs on basis of computation of 

flow over dam at gage heights 23.0, 27.4, and 29.0 ft; minimum, 39 cfs Oct. 1, 3, 4, 

1945; minimum daily, 45 cfs Sept. 20, 1923.

Remarks.--Records excellent except those for periods of ice effect, which are fair. 

Some diurnal fluctuation caused by powerplants above station.

Revisions (water years).--W 471: 1911-13 calendar years, 1914. W 641: 1923(M). W 726: 

Drainage area. W 871: 1904-33 (yearly summaries only).

Discharge

Note.--Same as 

preceding table 

above 2.o ft. 

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

Jan. Feb. Mar. May June July Aug. Sept.

1,690

1*270

1,150

1,150

597

574

543

536

582

444

404

402

444

369

355

31

566

543

441

364

516

994 

664 

5OO 

412 

369

554

615

1,690

910

571

471

1,560

946

1,610

5.060

1,470

934

740

605

514

457

633

1,050

3,020

1,700

*1,030

922

1,050

710

1,060

970

431

405

418

417

514

444

607 

521 

*812 

794 

566

Total) 

Mean 

Cfsm

68,89O

2,296

3.69

4.12

67,270

2,170

3.49

4.02

21,110

681

1.09

1.26

J186,710 

6,224 

10.01 

11.16

69,724

2,249

3.62

4.17

20,494

683

1.10

1.23

Z9,087

938

1.51 1.25

1.45

21,373

712

1.14

1.28

Calenda year 1950: Max 21,600 

year 1950-51: Max 14,700

Min 

Min

1,424

1,635

2 .29 31.08

35.69

Peak discharge (base, 12,600 cfs).--Nov. 26 (b:30 p.m.) 28,300 cfs (14.85 ft); Dec. 5 

19,600 cfs (11.35 ft); Apr. 4 (1:30 a.m.) 2O.5OO cfs (12.50 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 15, 16, Dec. 19 to Mar. 27.
MERRIMACK RIVER BASIN

Squam River at Ashland, N. H.

Location. Lat 43°42 1 15", long. 71°37'50", on right bank 200 ft upstream from bridge on 

U. S. Highway 3 and a third of a mile north of Ashland, Grafton County.

Drainage area. 57.6 sq mi.

Records available.--August 1939 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 545 ft (from topographic map).

Average discharge. 12 years, 84.3 cfs.

Extremes. Maximum discharge during year, 498 cfs Apr. 11 (gage height, 11.93 ft); minimum daily, 45 cfs Oct. 8.

1939-51: Maximum discharge, that of Apr. 11, 1951; minimum daily, 14 cfs Feb. 4, 

1940.

Remarks.--Records excellent. Plow completely regulated by Squam and Little Squam Lakes.

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

feet, and discharge, in cubic feet per second)

10.2

10.5

11.0

11.5

12.0

200

360

560

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.

Oct.

62

62

62

62

*60

60

49

4565-

62

62

62

62

60

60

62

62

62

62

52

62

62

63

63

63

63

63

63

63

64

63

1,892

61.0

-

-

Nov.

62

62

6062-

63

62

61

62

62

62

62

66

69

69

69

69

69

69

68

68

82

80

75

75

75

66

72

70

70

70

2,031

67.7

-

-

Dec.

69

B9

69

70

70

*70

70

72

75

74

74

74

74

74

74

74

74

72

72

72

72

72

72

72

72

72

72

72

72

72

72

2,234

72.1

-

-

Jan.

70

70

70

70

70

70

72

74

74

74

74

74

74

n

74

74

74

74

74

74

74

74

74

75

75

75

75

75

74

74

74

2,273

73.3

-

-

Feb.

74

74

74

74

*74

74

75

77

75

75

75

75

75

75

75

75

75

75

75

75

75

75

75

75

75

75

77

77

-

_

-

2,100

75.0

-

-

Mar.

77

77

92

113

105

93

93

93

93

93

93

93

93

93

93

93

98

105

105

105

105

105

105

107

107

107

107

107

107

107

116

3,080

99.4

-

-

Apr.

116

135

202

243

252

*258

261

268

274

277

393

453

457 453"

449

*437

423

429

421

331

247

214

156

137

141

152

227

255

249

246

8,556

285

-

-

May

240

237

228

150

122

120

118

*116

113

111

109

102

100

98

98

96

98

96

94

93

93

93

91

9T

9}

91

93

107

111

111

137

3,648

118

-

-

June

143

T43

141

139

135

135

130

128

102

93

91

87

87

87

87

87

87

86

84

84

82

80BO80

80

80

82

82

82

82

-

2,966

98.9

-

-

July

8282"

82

82

82

82

82

82

82

82

82

84

86

86

86

86

86

86

*86

87

87

87

87

87

87

89

89

89

89

89

9I_

2,646

85.4

-

-

Aug.

91

91

91

91

91

91

91

89

W

89

89

89

89

89

89

89

89

89

89

89

*118

T26" 128

126

126

126

120

103

103

102

111

3,083

99.5

-

-

Sept.

118

118

118

118

116

116

116

116

116

116

116

116

113

113

116

113

113

113

113

113

113

111

111

109

107

107

107

105

86

79_

-

3,342

111

-

-

Calendar year 1950: Max 87 

Water year 1950-51: Max 457

Min 31 Mean 64.5 Cfsm - In. - 

Min 45 Mean 104 Cfsm - In. -

* Discharge measurement made on this day.

Note. No gage-height record Oct. 13-28, 30, 31; discharge estimated on basis of recorded range in 

stage .

288890 O - 54 - 7
90 MEHRIMACR RIVER BA3DJ

Smith River near Bristol, N. E.

Location.--Lat 43°34'00", long. 71°44 I 50", on right bank in Hill, Merrimack County,

 l.S miles upstream from mouth and if miles southwest of Bristol, Grafton County.

Drainage area.--85.8 sq mi.

Records available.--May 1918 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 449.80 ft above mean sea level, datum of

 T929 (levels by Corps of Engineers). Prior to Nov. 25, 1933, staff gage at site 1| 

miles upstream at different datum.

Average discharge. 33 years, 138 cfs.

Extremes.--Maximum discharge during year, 2,840 cfs Apr. 3 (gage height, 8.91 ft); minimum daily, 6.3 cfs Oct. 5-7.

1918-51: Maximum discharge, 8,100 cfs Mar. 19, 1936 (gage height, 16.09 ft, from 

floodmarks), by contracted-opening determination; minimum daily, 1.9 cfs Sept. 21, 1930.

Remarks.--Records excellent except those for periods of ice effect or backwater from 

leaves, which are good. Some diurnal fluctuation caused by small mill above station; 

greater fluctuation prior to 1941.

Revisions (water years).--W 641: 1925(M). W 711: Drainage area. W 781: 1934. W 871: 

1919, 1920, 1922-30 (yearly summaries only).

Rating tables, water year 1950-51, except periods of Ice effect (gage 

height. In feet, and discharge, in cutic feet per second)

2.0 

2.2 

2.4 

2.7

Oct. 1 to July 11

6.3 3.1

12 3.5

22 4.0

38 5.0

64 6.0

July 11 to Sept. 30

365

765

2,320

2.2 

2.4

2.7

3.1 

3.5 

4.0

113

203

365

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.

Oct.

9.0

8.2

7.1

6.8

b.3

6.3

6.3

6.6

7.1

14

30

51

60

40

28

22

19

16

16

15

14

13

14

17

16

19

16

18

14

16

15

546.7

17.6

0.205

0.24

Nov.

15

*14

14

19

94

118

78

58

47

42

36

31

28

24

24

22

27

28

25

25

92

114

72

59

43

648

860

"r- Q

457

3 O2

-

4,094

136

1.59

1.77

Dee.

206

157

129

152

698

594

*378

362

662

528

372

302

23b

181

144

135

122

113

99

81

72

71

78

31

70

58

54

52

50

58

63

6,358

205

2.39

2.76

Jan.

64

63

66

84

122

*120

103

91

82

76

74

73

70

b7

74

96

92

80

76

80

91

95

96

138

240

220

155

110

95

81

71

3.U45

98.2

1.14

1.32

Feb.

74

105

139

146

122

105

110

430

450

350

290

235

205

255

250

220

179

154

164

171

159

Ib4

166

146

129

122

131

 152

_

_

-

5,323

190

2.21

2.31

Mar.

139

126

117

109

107

106

105

120

129

105

107

105

120

142

159

181

184

190

190

215

220

190

154

162

206

209

171

*190

314

474

1.47U

6,516

210

2.45

£.82

Apr.

1,580

1,440

2,010

*2.240

*1,290

914

904

932

882

882

1,050

1,100

1,090

1,000

846

693

£58

442

382

345

30b

266

370

449

390

550

526

390

316

273

-

24,41b

U14

9.49

1U.58

Hay

230

*200

190

150

135

127

122

117

109

99

106

169

176

135

113

100

95

96

90

82

79

75

68

103

174

118

110

435

518

422

200

4,943

159

1.85

2.14

June

172

T2T

112

102

*94

82

73

64

59

53

48

43

41

46

76

86

75

64

64

72

58

46

55

70

62

49

41

38

42

70

-

2,084

69.5

0.810

0.90

July

107

91

67

52

57

59

50

40

34

28

 25

38

86

69

45

*37

59

57

bS

153

107

73

57

45

35

31

29

68

203

150

95

2,112

68.1

0.794

0.92

Aug.

83

66

50

46

42

35

31

32

35

33

29

28

46

32

27_

*34

96

96

76

57

68

259 186"

114

83

67

68

76

60

52

43

2,050

66.1

0.770

0.89

Sept.

*50

63

*201

177

114

93

146

137

96

73

59

55

48

4284"

133

118

87

68

56

50

62

59

53

60

*86

74

67

59

53

-

2,523

84.1

0.980

1.09

Calendar year 1950: Max 1,370 Hin 4.8 Mean 126 Cfsm 1.47 In. 19.98

Water year 1950-51: Max 2,240 Hin 6.3 Mean 175 Cfsm 2.04 In. 27.74

Peak discharge (case, 1,150 efs).--Mar. 31 (2 to 5 p.m.) 1,830 cfs (7.1O ft); Apr. 3 (5 p.m.) 

2,840 cfs (8.91 ft); Apr. 11 (6:30 to 8 p.m.) 1,200 cfs (5.92 ft).

* Diacharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 22, 23, Jan. 25-28, Feb. 8-16, Mar. 20, 21. 

Backwater from leaves Oct. 1 to Nov. 5, Nov. 8-21, 23-26.
MERRIMACK RIVER BASIN < 

Lake Wlnnipeasaukee at The Weirs, N. H.

Location. Lat 43°36'20", long. 71°27'25", 800 ft north of highway bridge at The Weirs, 

Belknap County.

Drainage area. 363 sq mi at outlet at Lakeport.

Records available.--November 1937 to September 1951.

Gage. Water-stage Gage. recorder. Datura of gage is 500.02 ft above mean sea level, datum of

li929.

Extremes.--Maximum daily gage height during year, 4.57 ft Apr. 27, May 29, 30, June 1; 

minimum daily, 2.28 ft Nov. 18-20.

1937-51: Maximum daily gage height, 5.27 ft May 20, 21, 1945; minimum daily, 

0.63 ft Dec. 11, 1941.

Remarks. Lake used for recreation and conservation for development of water power. 

TbTa~l usable capacity, 18,240,000,000 cu ft between elevations 494.55 ft (bottom of 

flume at Lakeport) and 504.22 ft (top of flashboards at outlet in Lakeport). Draft 

limited by law to an average of 250 cfs during the seven days in any week between 

June 1 and Oct. 15 of any year when gage reading is at or below 502.4 ft above mean 

sea level. Stage regulated at outlet and by Wentworth, Merrymeeting (see p.119) , 

and other lakes. Contents given herein are computed from gage height at 12 p.m. on 

last day of month, eliminating the effect of seiche and wind action.

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.

3.03

3.02

2.99

2.97

2.95

2.94

2.92

2.90

2.89

2.92

2.96

2.9T

2.97

2.92

2.91

2.90

2.87

2.83

2.81

2.77

2.70

g2.70

g2.6S

g2.62

g2.59

g2.50

g2.48

g2.47

2.45

2.41

2.36

Nov.

2.36

2.34

2.34

2.36

2.41

2.42

2.42

2.42

2.42

2.38

2.37

2.36

2.34

2.31

2.30

2.31

2.31

2.28

2.28

2.28

2.31

2.32

2.33

2.34

2.39

2.S5

2.73

2.84

2.8S

2.87

Dec.

2.87

2.88

2.91

2.94

2.97

3.01

3.03

3.08

3.22

3.28

3.33

3.35

3.3S

3.37

3.39

3.39

3.39

3.39

3.34

3.37

3.35

3.35

3.35

3.37

3.33

3.33

3.33

3.34

3.38

3.41

3.42

Jan.

3.40

3.39

3.35

3.33

3.32

3.34

3.35

3.34

3.34

3.32

3.29

3.25

3.22

3.21

3.23

3.19

3.18

3.16

3.14

3.12

3.06

3.04

3.03

3.05

3.08

3.10

3.10

3.11

3.12

3.10

3.09

Feb.

3.13

3.12

3.09

3.07

3.04

3.01

3.00

3.10

3.15

3.17

3.20

3.20

3.21

3.24

3.28

3.30

3.31

3.39

3.44

3.47

3.49

3.54

3.5S

3.59

3.61

3.53

3.65

3.58

_

-

Mar.

3.70

3.70

3.S7

3.63

3.60

3.5S

3.51

3.45

3.40

3.33

3.29

3.24

3.20

3.17

3.20

3.18

3.17

3.16

3.15

3.24

3.30

3.34

3.35

3.37

3.37

3.35

3.34

3.32

3.30

3.33

3.4S

Apr.

.58

.57

.87

.11

.24

.32

.37

.40

.42

.46

'. .49

^ . 52

.55

.55

.56

.56

.55

.52

.51

.47

.45

.44

.45

.47

.48

.54

.57

.55

.53

.50

May

4.48

.45

.44

.41

.37

.34

.31

.28

.27

.26

.27

.30

.29

.28

.27

.27

.30

.28

.28

.27

.28

.28

.28

.33

.33

.33

.37

.52

.57

.57

.56

June

.57

.56

.56

.55

.53

.51

.45

.42

.40

.39

.36

.34

.32

, .34

.35

.35

.34

.33

.33

.31

.29

.29

.31

.32

.E9

.27

.27

.26

.27

.28

July

.31

.30

.28

.28

.30

.29

.30

.30

.28

.27

.28

.33

.37

.37

.35

.34

.37

.36

.40

.42

.40

.39

.38

.35

.33

.31

.32

.37

.39

.37

.37

Aug.

4.36

4.33

4.31

4.27

4.26

4.23

4.21

4.21

4.18

4.15

4.12

4.10

4.08

4.04

4.00

4.00

4.02

3.96

3.92

3.91

3.92

3.93

3.90

3.91

3.90

3.88

3.86

3.83

3.79

3.76

3.72

Sept.

3.74

3.73

3.77

3.72

3.71

3.69

3.68

3.64

3.63

3.61

3.58

3.56

3.54

3.51

3.51

3.49

3.47

3.43

3.38

3.35

3.31

3.27

3.23

3.20

3.18

3.13

3.11

3.05

2.98

2.94

-

g Computed from once-daily reference gage reading.

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

Date

Dec. 31. ..................

Calendar year 1950 ......

May 31 ...................

Water year 1950-51 ......

Gage height 

(feet)t

3.41

-

-

Contents 

(millions of 

cubic feet)

16,660

-

-

Change in contents 

during month 

(millions of cubic 

feet)

+ 1,070

+2,840

-170

t Gage height at 12 p.m.
92 MERRIMACK RIVER BASIN 

Lake Winnipesaukee Outlet at Lakeport, N. H.

Location.--Lat 43°32'55", long. 71°27 I 55", 100 ft upstream from highway bridge across 

Faugus Bay at Lakeport, Belknap County.

Drainage area.--363 sq mi.

Records available.--January 1860 to December 1911 (monthly gage heights only), June 1933 

to September 1951.

Gage. Water-stage recorder, Keeler deflection meter, and measuring flume. Datum of gage 

is 500.55 ft above mean sea level, datum of 1929. Prior to January 1912, staff gage 

at site 150 ft downstream at same datum. June 1, 1933, to Sept. 30, 1936, staff gage 

and continuous-recording current meter at same site and datum. Oct. 1, 1936, to May 

23, 1944, discharge computed from flow over spillway and through gates and wheels at 

site 150 ft downstream.

Average discharge.--18 years, 499 cfs (adjusted for storage).

Extremes.--Maximum daily discharge during year, 1,780 cfs Apr. 10, 12,'13; minimum daily, 

 a30 cfs Nov. 5, 11, 12, 18, 19.

1933-51: Maximum daily discharge, 2,890 cfs Mar. 31, 1936; minimum daily, 20 cfs 

Dec. 6-19, 1941, Dec. 22, 1941, to Jan. 19, 1942.

Remarks.--Records good. Plow completely regulated by Winnipesaukee (see p. 91 ), Wentworth, Merrymeeting (see p.119), and other lakes. Daily discharge computed from relation between discharge, stage, and deflection of vane in measuring flume.

ubie 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

(t)

Oct.

265

285

285

285

*285

280

250

250

275

275

275

275

275

260

340

785

785

780

770

655

435

745

785

770

755

755

635

435

*730

780

530

15,290

493

-1,300

Nov.

290

280

280

240

250

265

*270

265

260

260

230

230

260

260

260

260

260

230

230

255

260

265

240

265

240

235

270

280

280

285

-

7,735

258

-H, 010

Dec.

285

255

255

285

285

*290

300

295

*265

265

295

295

300

305

305

275

275

305

300

305

300

295

260

260

260

300

300

300

300

275

440

9,030

291

+1,070

Jan.

725

730

720

720

*500

*245

400

760

765

860

865

860

825

825

850

850

845

845

845

825

815

840

840

695

285

280

250

*450

965

960

1.020

22,260

718

-640

Feb.

1.220

* ,210

,190

,180

,190

,190

,180.

705

375

340

590

795

335

335

335

330

295

285

325

325

315

315

325

310

315

365

365

630

-

_

-

16,670

595

+1,200

Mar.

.050

,380

,550

* ,550

,570

,630

* .650

,640

,640

,600

,590

,620

,610

,580

,580

,580

,580

,580'

,640

,650

,520

,520

,520

* ,440

,440

,540

,580

,580

,580

,580

,500

48,030

1,549

-320

Apr.

1,220

1,040

725

485

600

940

1,200

1,340

1,490

1.7SO

1,760

1,780

1,780

1,710

1,680

1,720

1,720

1,710

1,700

1,700

1,410

1,260

1,290

1,270

1,270

1,510

1,680

1,670

1,660

1,660

-

42,760

1,425

+ 1,940

May

.550,

,160

,150

,150

,150

1,140

940

*560

605

625

570

565

560

555

475

315

305

300

295

290

290

280

275

275

275

275

285

375

625

620

630

18,265

589

+120

June

625

630

630

695

865

865

920

865

*550

325

360

365

395

400

390

355

320

380

375

355

325

275

275

275

335

345

350

335

335

300

-

13,815

460

-480

July

270

320

320

275

325

330

300

270

325

325

315

*320

320

300

270

325

345

34Q

345

480

*540

510

555

565

560

560

575

560

520

560

570

12,495

403

+100

Aug.

560

560

565

540

505

560

560

575

680

885

855

820

875

875

*870

880

885

860

830

870

860

555

525

390

590

825

870

955

1.050

1,010

915

22,985

741

-1, 320

Sept.

795

740

740

805

815

810

*800

775

730

805

795

780

775

865

970

900

970

955

955

955

940

925

880

975

970

965

955

940

*905

*860

-

26,050

868

-1,550

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

7.87 

0.022 

0.02

648 

1.79 

1.99

Calendar year 1950: 

Water year 1950-51 :

691 

1.90 

2.19

479 

1.32 

1.52

1,091 

3.01 

3.13

1,430 

3.94 

4.54

2,174 

5.99 

6.68

634 

1.75 

2.01

Observed

Max 1,140 Min 65 Mean 368 

Max 1,780 Min 230 Mean 700

275 

0.758 

0.85

440 

1.21 

1.40

249

0.686 

0.79

270 

0.744 

0.83

Adjusted

Mean 458 Cfsm 1.26 In. 17.10 

Mean 694 Cfsm 1.91 In. 25.95

Discharge measurement made on this day. 

Change In contents In Lake Winnipesaukee In millions of cubic feet.
WERRIMACK RIVER BASIN 

Winnipesaukee River at Tilt on, N. H.

gs

Location. --Lat 43°26'30", long. 71°35'15", on right bank at Tilton, Belknap County, 0.3 

mile upstream from Packer Brook.

Drainage area.--471 sq mi.

Records available . --January 1937 to September 1951.

Gage. --Water-stage recorder. Datum of gage is 441.87 ft above mean sea level, unadjusted.

Average discharge. --14 years, 652 cfs.

Extremes . --Maximum discharge during year, 3,080 cfs Apr. 3, 4 (gage height, 7.43 ft); min- 

 imum daily, 279 cfs Nov. 9, 10.

1937-51: Maximum discharge, 3,810 cfs Sept. 21, 1938 (gage height, 7.90 ft), by 

computation of flow over dam; minimum daily, 48 cfs Aug. 31, 1941.

Remarks . --Records excellent except those for periods of ice effect, which are good, and 

those for periods of no gage-height record, which are fair. Flow regulated by powerplants and by Winnipesaukee (see p. 91) , Winnisquam, Wentworth, Merrymeet ing (see 

p. 119), and other lakes above station.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

Oct. 1 to Apr. 3 Apr. 4 to Sept. 3O

3.5 251

4.0 446

5.0 1,000

6.0 

7.1

1, 730

2,750

3.3 

4.0

5.0

256

550

1,120

6.0 

7.2

1,810

2,850

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

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sn

In.

Oct.

293

293

293

290

286

293

290

290

286

308

316

319

323

304

308

834

975

744

729

734

464

751

745

737

728

737

741

488

732

*744

609

15,984

516

-

-

Nov.

339

290

290

286

323

316

286

282

279

279

E86

286

286

282

282

282

286

286

286

282

323

323

304

293

308

684

1.250

1,220

1,060

*785

-

12 , 344

411

-

-

Dec.

524

350

327

331

387

358

339

465

863

957

709

643

616

515

558

405

366

335

323

b325

319

319

516

304

b301

b308

b301

b293

501

297

290

12,819

414

-

-

Jan.

579

816

858

865

*881

580

620

826

832

1,020

1,040

1,050

1,050

1,040

1,050

1,060

1,050

1,050

1,040

1,040

1,050

1,060

1,050

1,100

1,020

453

b350

b523

607

1,030

1,040

27,408

884

-

-

Feb.

1,050

*1,050

1,070

1,060

1,070

1,110

1,310

1,860

a2.200

al,550

1,120

1,080

1,080

975

606

549

525

570

595

580

564

585

b620

b595

549

529

549

680

_

_

-

25,681

917

-

-

Mar.

*1.01Q

1,030

1,120

1,590

1,440

1,580

*1,630

1,780

1,910

1,900

1,840

1,840

1,890

1,920

2,030

2,120

2,120

2,110

2,090

2,210

2,350

2,200

2,070

2,050

2,050

*2,020

1,950

1,970

2,030

2,090

2,520

58,260

1,879

-

-

Apr.

2,650

2,380

2,700

2.820

2,360

2,170

2,070

2,010

1,980

1,980

2,000

2,030

2,050

2,060

2,050

2,040

2,020

2,000

1,990

1,990

1,970

1,890

1,700

1,670

1.660

1,810

1,990

1,950

1,920

1,910

-

61,800

2,060

-

-

May

1,890

*1,760

1,620

,470

,280

,260

,250

,190

,080

856

832

862

850

838

820

600

362

330

311

307

303

300

296

319

338

346

319

728

910

1,100

1,070

25,797

832

-

-

June

1,040

512

422

758

*1,O30

1,050

1,040

1,040

*1,020

767

588

521

482

443

366

395

550

552

432

419

414

419

334

311

288

281

360

*398

419

433

-

17,084

569

-

-

July

594

322

396

417

458

497

362

404

408

378

415

452

551

480

511

401

437

395

422

602

798

636

614

782

*604

572

550

578

606

578

566

15,384 496"

-

-

Aug.

570

652

689

811

741

664

696

792

825

830

552

786

838

836

1,020

1,040

1,060

575

812

1,040

1,070

1,090

849

799

785

767

964

982

786

776

785

25,482

822

-

"

 Sept.

793

808

1,030

797

1,010

807

*1,040

1,040

887

788

842

845

843

834

851

875

,030

,030

, 030

, 030

,020

,010

,010

,020

,030

* ,050

,020

,020

,010

,010

-

28,390

946

-

"

Calendar year 1950: Max 1,500 Min 67 Mean 511 Cfsm - In. -

Water year 1950-51: Max 2,820 Min 279 Mean 894 Cfsm - In. -

* Discharge measurement made on this day. 

a No gage-height record; discharge estimate 

b Stage-discharge relation affected by ice.

basis of weather records and powerplant rec
MERRIMACK RIVER BASIN 

Merrimack River at Franklin Junction, N. H.

Location.--Lat 43°25'25", long. 71°39'10", on right bank at Franklin Junction, Merrimack 

County, 1 mile downstream from confluence of Pemigewasset and Winnipesaukee Rivers.

Drainage area.--1,507 sq mi.

Records available.--July 1903 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 250.4 ft above mean sea level, unadjusted. 

Prior to Sept. 13, 1923, chain gage at bridge 350 ft downstream at same datum.

Average discharge.--46 years (1905-51), 2,754 cfs.

Extremes. Maximum discharge during year, 22,400 cfs Apr. 4 (gage height, 16.34 ft); minImum daily, 314 cfs Oct. 7.

1903-51: Maximum discharge, 83,000 cfs Mar. 19, 1936 (gage height, 36.4 ft, from 

floodmarks), from rating curve extended above 30,000 cfs on basis of velocity-area 

studies, slope-area determination, and computation of flow over dam; minimum daily, 

225 cfs Oct. 23, 1948.

Remarks.--Records excellent except those for periods of ice effect, which are good. 

Flow regulated by powerplants, by Franklin Falls Reservoir since 1942, and by Squam, 

Little Squam, Newfound, Winnipesaukee, Winnisquam, Wentworth, Merrymeeting, and other 

lakes. See pages 91,119 for description and monthly change in contents of many of 

these reservoirs.

Revisions (water years).--W 401: 1913 calendar year. W 641: 1923(M). W 756: Drainage 

 area: W 781: 1928(M). W 871: 1906, 1910, 1912, 1913 (yearly summaries only).

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. 3 Apr. 4 to Sept. 30

3.1 292

3.5 489

4.0 800

5.0 1,690

7.0 4,390

10.0 9,600

14.0 17,500

3.9 730

4.0 800

5.0 1,620

6.0 2,830

9.0 7,800

12.0 13,400

16.0 21,700

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.

Oct.

716

738

778

754

700

612

314

578

636

946

960

1,350

2,360

2.620

1,800

1,840

1,840

1,500

1,390

1,400

678

1,190

1,480

1,430

1,200

1,450

1,450

*670

1,230

1,380

1,420

37,410

1,207

0.801

0.92

Nov.

1,160

1,070

950

602

2,570

5,520

3,160

2,290

1,880

1,820

1,730

864

1,350

1,410

1,170

1,140

1,200

623

1,110

1,270

1,810

3,790

2,440

1,990

1,820

6,180

17.100

12,200

*8, 160

7,600

-

95,979

3,199

2.12

2.37

Dec.

5,120

3,480

2,130

1,870

8,070

10,800

5,870

4,340

7,330

7,190

5,490

4,660

4,050

3,540

3,050

2,820

2,530

2,330

2,130

1,940

1,690

1,770

1,590

1,670

1,700

1,500

1,250

1,270

1,400

900

1,350

104,830

3,382

2.24

2.59

Jan.

1.600

1,950

2,070

2,290

2,320

1,800

1,850

2,300

2,250

2,100

2,200

2,000

1,760

1,990

2,200

2,260

2,360

2,560

2,340

1,640

2,170

2,300

2,350

2,600

5.500

2,200

1,950

1,800

1,650

2,100

2,200

66,460

2,144

1.42

1.64

Feb.

2,300

2,200

2,400

2,600

2,750

2,700

2,980

5,620

7.100

4,910

3,860

3,550

3,450

3,510

3,080

2,800

2,380

2,400

2,870

2,850

2,550

2,720

2,600

2,300

1.850

1,950

2,330

2,520

_

_

-

85,110

3,040

2.02

2 .10

Mar.

2,700

2,600

2,450

2,750

3,000

3,200

3,300

3,400

3,500

3,500

3,020

3,520

3,480

3,780

4,200

4,580

4,580

4, 120

4,570

4,910

4,990

4,870

4,540

4,450

3,880

*3,900

4,390

4,400

4,560

5,170

10,400

126,710

4,087

2.71

3.13

Apr.

*15,400

14,200

15, 600

*2 1.500

18, 8OO

12,500

10,800

11,400

11,300

11,200

13,000

14,300

13,900

13,800

12,500

10,900

9,010

8,140

7,370

6,860

6,250

5. BOO

6,470

10,600

8, 650

10,300

12,700

9,730

8, 650

*9,310

-

340, 940

11,360

6.54

8.41

May

8,270

6,880

6,310

5,270

4,390

4,150

3,850

3,550

3,550

3,700

3,880

3,500

3,620

3,440

3,080

2,980

3,100

3,06O

2,420

2,180

2,180

2,120

2,180

2,230

2,180

2,290

1.790

5,330

7,600

6,580

4,970

120,630

3,891

2.58

2.98

June

5,820

2,970

2,340

2,530

2,660

2,600

2,530

2,370

2,140

*1,700

1,780

1,440

1,450

1,440

1,590

853

1,360

1,560

1,420

1,180

1,280

1,170

782

1,190

1,270

1,240

1,190

*1,090

1,100

1,080

-

51,125

1,704

1.13

1.26

July

1,580

1,280

1,220

1,110

1,170

1, 610'

1,560

1,360

1,310

1,140

1,080

1,470

2,150

2,310

1,300

1,130

1,540

2,080

1,780

4.050

3,320

2,210

2,000

1,890

1,610

1,320

1,340

1,700

3,390

3,490

2,380

56,860

1,834

1.22

1.40

Aug.

2,080

2,090

2,120

2,010

1,880

1,860

1,550

1,840

1,560

1,580

1,550

1,340

1,620

1,760

*1, 880

1,980

2,580

2,260

2,040

2,260

2,340

3,550

5.750

2,730

2,320

2,050

2,150

2,450

2,240

2,220

2,010

65,370

2,109

1.40

1.61

Sept.

*1, 900

1,570

2,570

2,660

2,620

2,370

2,770

3.790

3, 000

2,350

2,310

1,950

1,960

1,940

1,890

2,320

2,260

2,450

2,110

1,980

1,760

1,580

1,880

1,880

2,050

2,160

2,370

2,050

*2 , 050

2,340

-

66,890

2,230

1.48

1.65

Calendar year 1950: Max 18,200 Mln 314 Mean 2,539 Cfsm 1.68 In. 22.88

Water year 1950-51: Max 21,500 Mln 314 Mean 3,338 Cfsm 2.21 In. 30.06

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 19-21, Dec. 25 to Jan. 2, Jan. 8-11, 22-24, 

Jan. 26 to Feb. 6, Feb. 16, 23, 24, Mar. 1-10.
MERRIMACK RIVER BASIN 

Contoocook River at Peterboro, N. H.

Location.--Lat 42°51'45", long. 71°57'35", on left bank 1,100 ft downstream from mill 

darn, 1 mile south of Peterboro, Hillsboro County, and lj miles upstream from Nu.banu.sit 

Brook.

Drainage area.--68.1 sq mi.

Records available.--July 1945 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 740 ft (from topographic map).

Average discharge. 6 years, 110 cfs.

Extremes.--Maximum discharge during year, 2,640 cfs Nov. 26 (gage height, 6.35 ft), from 

rating curve extended above 1,700 cfs by logarithmic plotting; minimum daily, 1.3 cfs 

Oct. 7.

1945-51: Maximum discharge, that of Nov. 26, 1950; minimum daily, 1.2 cfs Oct. 

18, 19, 1947.

Flood in September 1938 reached a stage of about 15 ft, from information by local 

residents.

Remarks.--Records good except those for periods of ice effect or doubtful or no gageheight record, which are fair. Flow regulated by mill and reservoirs above station.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

0.6 

.7

0.8 

2.1 

4.0 

6.3 

9.5

1.2 

1.4 

1.7 

2.0 

2.5

71

124

260

3.0 

4.0 

4.9

450

900

1,470

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

El

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1.4

18

18

18

14

15

1.3

1.5

19

19

34

*36

43

38

19

32

15

19

17

21

19

9.9

27

22

18

16

a25

a20

9.1

26

21

612.2

19.7

0.289

0.33

Nov.

20

11

12

a8

a30

a90

65

64

*78

70

56

17

52

64

52

49

72

32

21

56

201

*168

56

44

99

*1.410

658

454

369

317

-

4,695

156

2.29

2.56

Dec.

269

178

83

153

557

436

258

303

456

330

274

211

167

138

115

124

118

140

103

120

86

98

75

100

100

98

105

100

90

99" 65

5,549

179

2.63

3.03

Jan.

95

114

S3

162

206

156

146

150

140

*120

120

114

50

95

174

218

192

178

178

183

225

225

210

237

266

225

160

150

145

145

160

5,032

162

2.38

2:75

Feb.

170

235

200

180

175

150

240

550

415

310

300

*220

190

210

195

190

160

370

438

360

273

352

360

254

181

194

226

231

_

-

7,329

262

3.85

4.00

Mar.

199

183

155

163

173

172

181

197

*165

151

148

161

167

218

359

293

233

158

186

431

450

317

247

302

306

290

242

237

270

317

950

8,001

258

3.79

4.37

Apr.

780

561

953

900

617

478

412

372

316

297

315

*284

295

236

236

214

201

188

173

162

128

118

231

232

235

248

220

160

112

130

9,804

327

4.80

5.35

May

147

134

131

130

89

69

87

122

95

106

130

182

135

124

99

117

*109

107

75

51

83

98

63

175

200

105

75

219 I89~

92

107

3,625

117

1.72

1.98

June

84

63

35

89

81

80

81

74

41

23

54

56

60

*72

202

188

124

126

92

76

66

66

22

25

66

50

33

14

44

59

-

2,146

71.5

1.05

1.17

July

45

43

45

34

34

45

40

33

52

58

62

97

135

49

29.

35

59

48

79

142

67

37

46

37

54

48

45

54

71

72

93

1,793

57.8

0.849

0.98

Aug.

186

141

58

45

34

47

50

57

57

44

21

22

45

38

46

110

222

116

103

108

108

154

132

95

35

26

61

156

*140

138

118

2,713

87.5

1.28

1.48

Sept.

48

57

118

117

165

150

147

126

76

65

90

107

87

87

53

29

54

84

79

53

52

25

9^3,

43

58

99

73

79

29

15

-

2,274.3

75.8

1.11

1.24

Calendar year 1950: Max 1,410 Mln 1.3 Mean 107 Cfsm 1.57 In. 21.24

Water year 1950-51: Max 1,410 Mln 1.3 Mean 147 Cfsrn 2.16 In. 29.24

Peak discharge (base, 700 cfs). --Nov. 26 (8 a.m.) 3,640 cfs (6.35 ft); Feb. 7 (ll:3O p.m.) 882 cfs

(3.97 ft)j Mar. 31 (10 a.m.) 1,580 cfs (5.05 ft)j Apr. 3 (4:3O p.m.) 1,61O cfs (5.10 ft).

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on basis of recorder graph, weather records, and records for other stations in Contoocook River basin.

Note. --Stage-discharge relation affected by ice Dec. 20-23, 26-30, Jan. 1, 8-11, 14, 21-23, Jan. 27

to Feb. 6, Feb. 8-18, Mar. 3.
MERRIMACK RIVER BASIM

Location. --Lat 42°53'10", long. 71°58'25", on left bank lij miles downstream from MacIJoweli Reservoir, 1.3 miles northwest of Peterboro, Hillsboro County, and \\ miles 

upstream from mouth.

Drainage area. --46. 9 sq mi.

Records available. --November 1920 to September 1931, July 1945 to September 1951.

Gage. --Water-stage recorder. Altitude of gage is 790 ft (from topographic map). Prior 

fo Oct. 1, 1931, at site 550 ft downstream at different datum.

Average discharge. --17 years, 80.6 cfs.

Extremes . --Maximum discharge during year, 556 cfs Apr. 11 (gage height, 4.07 ft); minimum daily, 3.9 cfs Oct. 28.

1920-31, 1945-51: Maximum discharge, 1,130 cfs Apr. 11, 1931 (gage height, 5.59 

ft, site and datum then in use), from rating curve extended above 380 cfs; minimum 

daily, 0.5 cfs Aug. 1, 1926.

Remarks. --Records excellent except those below 5 cfs, which are good, and those for

periods of ice effect, which are fair. Plow regulated by mills, Nubanusit Lake, and 

Edward MaeDowell Reservoir since March 1950 (see p. 119), and other reservoirs above 

station.

Revisions (water years ). --W 561: 1921(M). W 1051: Drainage area.

Rating table, water year 1950-51, e 

height, in feet, and discharge

cept periods of ice effect (gage 

in cubic feet per second)

1.0 

1.2

Discharge, in cubic feeb pe

4.2 

6.3 

9.3

107

182

3.0 

4.0

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

Cfsm

In.

Oct.

5.8

36

37

37

40

38

3.9

5.2

35

40

36

*37

36

5.8

6.0

31

31

41

45

43

5.0

5.0

32

33

34

32

28

3.9

4.8

32

32

831.4

26.8

0.571

0.66

Nov.

33

32

48

5.3

24

64

42

31

*34

33

4.8

5.2

32

33

38

33

33

4.2

5.4

33

66

72

23

50

52

181

200

242

460

472

-

2,385.9

79.5

1.70

1.89

Dec.

444

428

425

354

178

252

268

266

219

285

321

312

294

266

*168

142

123

b!25

bllO

b88

75

69

42

b44

b51

b63

b62

b61

b61

40

3_!

5,667

183

3.90

4.49

Jan.

b47

b64

67

82

160

155

115

bl!2

b93

*b87

79

72

66

b60

104

128

b!25

103

93

96

137

b!50

bllO

136

170

168

135

b95

100

b90

b74

3,273

106

2.26

T.60

Feb.

79

82

b!25

b!60

b!80

b!75

177

bl!5

b!85

b210

b200

*198

195

211

b215

b!95

177

b!90

260

279

262

250

221

148

143

131

131

149

_

_

-

5,043

180

3.84

4.00

Mar.

136

119

bllO

100

114

112

119

134

133

106

114

120

*128

140

186

191

177

160

165

230

326

305

247

219

235

233

193

150

165

185

153

5,205

168

3.58

4.13

Apr.

117

243

260

225

432

514

508

496

508

517

532

*529

520

514

481

496

320

198

177

157

137

102

160

175

174

172

157

140

130

131

-

9,222

307

6.55

7.31

May

116

104

93

86

62

67

86

79

74

73

65

48

96

108

101

*96

84

75

44

46

68

70

72

78

75

42

65

104

111

91

96

2,475

79.8

1.70

1.96

June

77

50

49

72

73

73

74

73

27

8.0

54

68

69

*69

76

25

11

59

72

70

69

70

22

9.3

57

66

65

68

41

5.7

-

1,622.0

54.1

1.15

1.29

July

6.8

6.3

6.0

6.0

6.6

7.4

7.4

11

56

69

70

*74

71

26

6.6

*56

74

51

pr>

57

6.8

7.0

50

48

41

42

40

9.6

9.7

47

53

1,084.2

35.0

0.746

0.86

Aug.

73

47

40

7.6

6.6

37

38

39

39

36

5.5

6.3

36

33

37

40

51

21

14

37

38

57

70

67

21

6.3

38

38

50

*51

51

1,131.3

36.5

0.778

0.90

Sept.

18

11

51

78

71

68

39

5.1

sT

40

39

41

40

37

10

21

43

56

47

46

41

9.7

16

45

38

40

44

52

32

6.0

-

1,090.0

36.3

0.774

0.86

Calendar year 1950: Max 472 Min 2.4 Mean 79.7 Cfsm 1.70 In. 23.06

Water year 1950-51: Max 532 Min 3.9 Mean 107 Cfsm 2.28 In. 30.95

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Mote. Discharge in cubic feet per second per square mile and runoff in inches may not 

natural flow because of regulation.
MERRIMACK RIVER BASIN 97

North Branch Contooeook River near Antrim, N. H.

Location.--Lat 43°04'55", long. 71°58'40", on right bank at North Branch, 4 miles northwest of Antrim, Hillsboro County, and 6 miles upstream from mouth.

Drainage area.--54.8 sq mi.

Records available.--August 1924 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 882.38 ft above mean sea level (levels by 

 Corps of Engineers). Prior to Nov. 14, 1932, staff gage and Nov. 14, 1938, to Jan. 7, 

1941, float gage at same site and datum.

Average discharge.--27 years, 98.4 cfs.

Extreme's.--Maximum discharge during year, 1,510 cfs Nov. 27 (gage height, 6.01 ft); minimum, 3.6 cfs Oct. 9, 10.

1924-51: Maximum discharge, 4,680 cfs Mar. 19, 1936 (gage height, 9.30 ft, from 

floodmarks), from rating curve extended above 1,600 cfs on basis of slope-area determinations at gage heights 8.4 and 9.3 ft; minimum, 0.3 cfs Sept. 18, 1948.

Remarks.--Records good except those for periods of ice effect, which are fair. Flow 

regulated by Highland Lake and several ponds above station.

Revisions (water years). W 756: Drainage area. W 851: 1936. W 867: 1936 (floodreport data).

Rating table, water year 195O-51, except periods of ice effect (gage 

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

3.4 

7.2

1.0 

1.5

2.0 

3.0

4.0 

5.0 

6.0

123

304

580

985

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

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

5.3

5.1

5.1

4.8

4.6

4.4

4.1

3.9

3.7 S~3

11

21

44

49

4T

32

*27

25

24

24

22

20

19

19

20

21

22

21

20

19

18

565.2

18.2

0.332

0.38

Nov.

17

T7

17

18

46

82

91

80

69

*62

56

50

46

41

38

35

38

44

46

44

72

114

124

113

109

978

*1,420 953"

600

421

-

5,851

195

3.56

3.97

Dec.

319

251

199

188

447

494

442

413

521

503

450

383

319

261

211

176

150

130

115

105

90

76

73

68

62

47

44

41

40

47

54

6,719

217

3.96

4.56

Jan.

54

52

55

76

120

125

125

115

1OO

89

*85

89

81

70

84

110

110

105

96

89

98

100

96

120

160

155

140

120

105

90

74

3,087

99.6

1.82

2.09

Feb.

100

T3T3

140

135

125

110

120

260

230

210

190

170

160

155

145

130

115

150

170

145

140

130

125

150

140

106

108

115

_

_

-

4,104

147

2.68

2.79

Mar.

110

105

100

95

92

89

88

92

92

89

91

82

*85

88

102

104

103

99

98

128

157

152

135

136

160

155

140

136

163

212

664

4,142

134

2.45

2.81

Apr.

859

868

1,040

1,180

 975

697

604

598

573

545

536

533

562

548

503

442

378

326

*286

259

232

203

214

226

226

251

247

233

205

178

-

14,524

484

8.83

9.86

May

160

143

129

118

107

98

94

90

84

66

53

68

74

63

54

51

50

*49

49

46

44

42

39

5T

81

89

82

110

133

149

155

2,621

84.5

1.54

1.78

June

146

TZE

108

91

78

67

56

47

40

35

31

28

26

7f

*37

60

68

60

50

43

36

3?

46

116

118

97

78

64

56

59

-

1,926

64.2

1.17

1.31

July

67

63

56

48

42

42

48

49

44

38

34

38

*59

66

60

48

41

36

40

56

57

53

44

39

34

29

25

33

99

95

88

1,573

50.7

0.925

1.07

Aug.

76

74

67

67

62

52

45

41

38

35

30

28

26

23

22_

26

62

92

95

86

88

9692"

83

72

61

52

46

46

43

38

1,764

56.9

1.04

1.20

Sept.

36

63

110

119

ToTT

89

87

76

64

56

*47

42

36

34

50

86

98

95

82

69

59

51

44

40

38

46

49

55

53

49

-

1,929

64.3

1.17

1.31

Calendar year 1950: Max 1,42O 

Water year 1950-51: Max 1,420

Min 

Min

0.5 

i.7

Mean 

Mean

Cfsm 

Cfsm

1.95

2.45

In. 

In.

26.41

33.13

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 19-22, Dec. 25 to Feb. 25, Mar. 2, 3, 10, 11, 

23, 27. Discharge for period July 24 to Aug. 8 computed from twice-daily tape-gage readings. Discharge in cubic feet per second per square mile and runoff in inches may not represent natural flow 

because of regulation.
MERRIMACK RIVER BASIN

Beards Brook near Hillsboro, N. H,

06'50", long. 71°55'35", on right bank 300 ft upstream from bridge on 

, 500 ft upstream from mouth, and If miles west of Hillsboro, Hillsboro

Location. Lat 43°

 State Highway 9 

County.

Drainage area. 55.4 sq mi.

Records available. November 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 595 ft (from topographic map).

Average discharge. 5 years (1946-51), 85.8 cfs.

Extremes. Maximum discharge during year, 2,070 cfs Nov. 26 (gage height, 6.59 ft), from

 rating curve extended above 1,200 cfs by logarithmic plotting; minimum, 3.4 cfs Oct. 3. 

1945-51: Maximum discharge, that of Nov. 26, 1950; minimum, 1.1 cfs Oct. 3, 1948.

Remarks. Records good except those for periods of ice effect, 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)

1.2

1.3 

1.5 

1.7 

1.9 34

2.2 

2.5 

3.0 

4.0 

5.3

72

137

308

705

1,330

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.

Oct.

4.4

4.2

14

9.8

4.6

4.0

3.8

5.2

4.4

6.4

21

35

51

37

26

20

*16

13

12

11

9.4

9.4

8.2

8.5

9.4

9.8

9.8

9.1

9.1

9.1

8.8

403.4

13.0

0.235

Nov.

8.8

9.8

9.1

11

48

62

46

37

31

26

22

20

*18

18

16

22

26

27

25

23

62

84

68

53

48

1,510

*1,020

528

330

228

-

4,236.7

141

2.55

0.27| 2.84

Dec.

164

124

100

112

725

426

267

304

750

444

319

264

204

152

120

109

98

89

78

68

60

56

51

49

46

43

37

33

29

33

37

5,391

174

3.14

3.62

Jan.

39

38

39

60

120

110

100

90

80

73

*67

58

52

48

52

90

80

71

65

63

68

80

70

85

180

135

100

78

68

59

52

2,370

76.5

1.38

1.59

Feb.

78

110

140

115

100

90

88

230

280

210

180

160

140

170

190

140

110

150

200

140

120

140

155

170

120

98

115

130

-

-

-

4,069

145

2.62

2.73

Calendar year 1950: Max 1,310 Min 1.4

Mar.

120

110

91

82

82

82

82

89

86

84

86

*77

91

104

149

161

155

152

146

228

285

246

185

187

221

185

155

167

224

327

1.500

5,739

185

3.34

3.85

Apr.

1,120

867

1.240

1,180

696

492

496

524

416

497

955

628

520

456

560

501

267

221

*195

187

158

137

183

204

184

288

235

184

158

134

-

13,461

449

8.10

9.04

May

111

100

87

80

74

70

68

63

58

54

62

108

100

79

66

57

51

46

41

37

36

34

32

67

110

77

63

150

161

127

91

2,360

76.1

1.37

1.58

June

70

56

50

50

47

39

31

26

23

20

19

17

16

19

*62

100

74

58

44

34

28

23

44

158

100

67

47

41

46

58

-

1,467

48.9

0.883

0.98

July

75

66

61

64

48

68

58

42

31

24

20

37

*92

62

40

28

30

32

45

95

63

44

33

27

22

18

16

37

124

91

66

1,559

50.5

0.908

1.05

Aug.

110

96

66

68

52

40

51

51

39

35

30

51

56

26

22

24

94

111

90

66

62

74

65

48

38

31

28

31

46

36

30

1,585

51.1

0.922

1.06

Sept.

36

58

110

101

71

56

62

56

41

35

28

26

*24

22

58

134

89

65

47

57

51

27

25

24

25

57

35

35

33

27

-

1,453

48.4

0.874

0.98

Mean 87.8 Cfsm 1.58 In. 21.52

Water water year year 1950-51: J-SDU-OJ. : Max Max 1,310 i,oiu Min Min 3.8 3. a Mean Mean 121 1ZJ. Cfsm uism 2.18 t.-io In. j.n. 29.59 ca.oa

Peak discharge (base, 910 cfs). Nov. 26 (3 to 4 p.m.) 2,070 cfs (6.59 ft); Mar. 31 (4:30 p.m.) 

1,740 cfs (6.04 ft); Apr. 3 (8:30 p.m.) 1,880 cfs (6.26 ft); Apr. 11 (7 to 8 a.m.) 1,080 cfs (4.79 

ft.t).

* Discharge measurement made on this day.

Note . --Stage-discharge relation affected by ice Dec 

23, 26, 27 (no gage-height record Feb. 9-13).

15, Dec. 19 to Mar. 4, Mar. 6, 10, 11, 21,
MERRIMACK RIVER BASIN

Contoooook River near Hermiker, N. H.

Location.--Lat 43°09'10", long. 71°51'25", on right bank 1.6 miles downstream from Sand 

Brook and 2.2 miles southwest of Henniker, Merrimack County.

Drainage area.--368 sq mi.

Records available.--October 1939 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 475 ft (from topographic map). Prior 

to Dec. 18, 1939, staff gage at same site and datum.

Average discharge. 12 years, 584 cfs.

Extremes.--Maximum discharge during year, 6,740 cfs Apr. 4 (gage height, 11.80 ft); minimum daily, 54 cfs Oct. 2.

1939-51: Maximum discharge, 8,710 cfs June 26, 1944 (gage height, 13.13 ft); minimum daily, 19 cfs Oct. 29, 1940.

Maximum discharge known, 22,200 cfs Sept. 21, 1938 (gage height, 21.3 ft, from 

floodmarks), by computation of flow over dam 0.8 mile above station.

Remarks.--Records excellent except those for periods of ice effect or no gage-height rec- 

 ord, which are fair. Plow regulated by powerplants and by Nubanusit Lake, Edward MacDowell Reservoir (see p.119) since March 1950, Highland Lake, Jackman Reservoir, and

other reservoirs above station.

Rating table, water year 195O-51, except periods of ice effect (gage 

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

4.3 

4.6 

5.0 

5.5 

6.0 

6.5 

7.0

76

130

225

356

520

730

7.5

8.0

8.5

9.0

10.0

11.0

11.7

1,320

1,700

2,270

3,690

5,340

6,560

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

D'ay

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

97

54 *17B174

101

100

104

118

56 

134

154

142

210

176

114

168

361

317

306

311

191

100

147

294

296

302

272

170

94

142

162

5,543

179

0.486

0.56

Nov.

124

T24

172

149

149

199

223

230

245 

250

225

134

*157

196

165

195

244

214

140

170

344

598

513

319

303

2,840

*5,610

4,230

2,740

2,180

-

23,382

779

2.12

2.36

Dec.

1,820

1,540

1,220

1,100

2,460

2,850

2,300

1,900

2,940 

2,810

2,270

1,930

1,620

1,350

1,140

914

784

750

680

620

570

520

460

400

370

390

350

310

280

3135

330

37,278

1,203

3.27

3.77

Jan.

540

340

400

450

750

750

620

540

560 

580

520

470

430

360

430

500

550

530

480

470

500

610

630

660

980

1,050

840

580

610

610

620

17,760

573

1.56

1.79

Feb.

620

U55

950

800

880

880

900

1,700

2,280 

1,840

,220

,150

,220

* ,360

,330

,230

,100

886

,420

,780

,640

,530

,660

,540

,260

,170

,190

,300

_

_

-

35,636

1,273

3.46

3.60

Mar.

1,220

1,080

960

810

820

925

942

992

998 

914

690

*752

816

870

1,250

1,500

1,330

1,080

1,050

1,340

2,120

2,190

1,690

1,480

1,480

1,530

1,360

1,290

1,390

1,680

5,660

40,199

1,297

3.52

4.06

Apr.

4,830

3,850

4,290

6,540

5,160

5,720

3,270

3,080

2,840 

2,700

5,520

2,980

2,680

2,600

2,550

2,200

2,040

1,690

1,400

*1,280

870

759 '556"

1,170

1,180

1,390

1,340

1,170

892

964

-

75,341

2,445

6.64

7.41

May

881

816

752

721

662

467

484

516

558 

531

562

730

698

611

528

474

457

399

368

522

559

428

*438

460

739

658

488

821

1 A050

881

730

18,569

599

1.63

1.88

June

649

454

378

467

495

460

418

511

199 Z3T

597

347

*354

570

412

554

444

279

568

555

550

516

547

602

566

559

484

418

450

572

-

12,580

415

1.12

1.25

July

527

192

141

203

174

133

141

133

91 

ITS

205

256

*506

484

519

188

300

297

330

450

455

524

192

295

508

295

282

347

562 5T3

477

9,076

293

0.796

0.92

Aug.

528

520

470

406

547

264

522

547

339

339

247

171

¥55

304

388

482

574

1>2~5

447

347

484

474

387

359

350

297

306

356

387

347

353

11,688

377

1.02

1.18

Sept.

516

584

447

418

484

464

502

475

342

311

575

*576

424

393

347

474

457

484

450

424

a570

a510

256

218

554

381

375

a320

a260

a210

-

11,576

379

1.03

1.15

Calendar year 1950: Max 5,610 Min 32 Mean 597 Cfsm 1.62 In. 22.01

Water year 1950-51: Max 6,540 Min 54 Mean 812 Cfsm 2.21 In. 29.93

recorded range in stage

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather rec 

when available, and records for station at Penacook.

Note.--Stage-discharge relation affected by ice Dec. 18 to Feb. 8, Feb..15, 16, Mar. 3, 4. Discharge in cubic feet per second per square mile and runoff in inches may not represent natural flow 

because of regulation.
100 MERRIMACK RIVER BASIH

Warner River at Davisville, N. H.

Location. Lat 43°15'05", long. 71°43'50", on left bank 60 ft downstream from highway 

Dridge in Davisville, Merrimack County, 2-j miles northwest of Contoocook, and 2.4 

miles upstream from mouth.

Drainage area.--146 sq mi.

Records available. October 1939 to September 1951.

G-age. Water-stage recorder. Altitude of gage is 380 ft (from topographic map). Prior 

TTo Dec. 22, 1939, chain gage at bridge 60 ft upstream at same datum.

Average discharge.--IS years, 216 cfs.

Extremes. Maximum discharge during year, 3,670 cfs Apr. 3 (gage height, 9.39 ft); minimum, 8.0 cfs Oct. 7.

1939-51: Maximum discharge, 3,950 cfs June 25, 1944 (gage height, 9.64 ft), from 

rating curve extended above 1,900 cfs by logarithmic plotting; minimum, 4.4 cfs Aug. 

27-29, 1949 (gage height, 3.07 ft).

Flood in September 1938 reached a stage of 12.8 ft, from information by local 

residents.

Remarks. Records excellent except those for periods of ice effect, which are fair. Prior 

 to 1948, slight diurnal fluctuation at low flow caused by mill above station.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

3.16

3.2

3.3

3.4

3.7

4.0

4.5

5.0 

6.0 

7.0

9.0

78

172

322

810

1,470

3,240

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

Day

I

o

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

8.7

8.7

9.0

9.7

9.0

*8.5

8.4

TK

11

14

32

44

78

£8

52

40

33

29

26

24

22

20

20

21

23

25

25

24

24

24

24

774.0

25.0

0.171

0.20

Nov.

24

24

222-J

69

125

107

80

*63

53

45

40

36

34

31

33

41

45

44

40

78

135

116

92

80

722

1,460

1,050

858

651

-

6,262

209

1.43

1.60

Dec.

513

414

338

289

693

882

712

*615

1,270

1,170

950

798

651

536

446

384

342

311

270

240

215

200

186

179

165

155

140

118

110

TT5

125

13,535

437

2.99

3.45

Jan.

127

125

T2T

157

259

268

240

*210

180

165

160

155

150

143

153

206

200

184

172

179

205

225

220

252

375

388

335

289

255

231

195

6,533

211

1.45

1.66

Feb.

198

237

278

275

255

234

*228

555

670

530

490

454

418

477

490

430

375

354

384

401

384

396

472

414

362

342

340

375

_

_

-

10,818

386

2.64

2.76

Mar.

350

315

285

265

255

246

246

249

*246

225

220

214 2~49~

282

379

450

454

454

464

526

744

656

531

500

555

531

459

450

540

690

1,850

13,880

448

3.07

3.54

Apr.

2,520

*2,210

2,560

3,210

2,340

*1,740

1,470

1,390

1,280

1,180

1,910

2,190

1,820

1,580

1,330

1,120

950

804

700

640

565

495

504

565

531

656

690

605

531

468

-

38,554

1,285

8.80

9.82

May

410

366

326

292

265

243

231

217

206

*193

188

249

285

252

217

190

172

159

147

137

129

122

116

T5Z

246

217

179

408

513

451

362

7,643

247

1.69

1.92

June

285

23T

195

193

208

181

155

135

125

107

92

*81

72

72

142

214

195

162

133

108

89

74

83

234

193

157

122

107

96

125

-

4,366

146

1.00

1.11

July

190

186

147

112

105

122

103

83

70

59

52

67

172

131

98

74

71

77

89

159

133

110

89

75

62

53

45

75

206

T93

157

3,368

109

0.747

0.86

Aug.

219

19O

141

123

103

84

71

68

77

71

64

59

ITS

*90

71

76

242

285

?59

188

166

199

200

164

137

116

103

110

105

88

75

4,054

131

0.897

1.03

Sept.

83

103

182

206

T72

139

139

127

107

89

*77

72

67

62

W.

195

184

166

137

118

98

84

77

71

68

86

81

81

74

65

-

3,306

110

0.753

0.84

Calendar year 1950: Max 1,860 Min 5.6 Mean 2O7 Cfsm 1.42 In. 19.23

Water year 1950-51: Max 3,210 Min 8.4 Mean 310 Cfsm 2.12 In. 28.82

Peak discharge (base, 1.2OOofs).--Nov. 27 (2 to 4 a.m.) 1,630 cf 

p.m.) 1,410 cfs (6.91 ft}; Mar. 31 (10 to 11 p.m.) 2,780 cfs (8.5 

,670 cfs (9.39 ft); Apr. 12 (2 to 3:30 a.m.) 2,310 cfs (8.02 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 19-22, 25-27, Jan. 7-13, 21-23, Feb. 9, 10, 

IS^TTT 27, 28, Mar. 2, 4, 5, 10, 11.

s (7.21 ft); Dec. 9 (11 a.m. to 

54 ft); Apr. 3 (11:30 to 12 p.m.)
MERRIMACK RIVER BASIN 

Blackwater River near Webster, N. H.

Location. Lat 43°17'50", long. 71°41'40", on left bank 02 mile west of Dingit Corner, 

2|fTriIles southeast of Webster, Merrimack County, and 6-| miles upstream from mouth.

Drainage area.--129 sq mi.

Records available.--May 1918 to September 1920, February 1927 to September 1951. Publisnea as "near Contoocook" 1918-20, 1927-35. Records published for both sites 

October 1934 to September 1935.

Gage.--Water-stage recorder. Altitude of gage is 430 ft (from topographic map). Prior 

tfo Oct. 1, 1934, chain gage at site 5 miles downstream at different datum. Both gages 

in operation Oct. 1, 1934, to Sept. 30, 1935.

Average discharge. 24 years (1927-51), 206 cfs (adjusted to present site).

Extremes.--Maximum discharge during year, 2,390 cfs Apr. 16 (gage height, 7.18 ft); mini-

 mum, 18 cfs Oct. 7-9; minimum daily, 18 cfs Oct. 8, 9.

1918-20, 1927-51: Maximum discharge, 11,000 cfs Mar. 19, 1936 (gage height, 11.78 

ft, from floodmarks), from rating curve extended above 6,700 cfs on basis of slopearea determinations and critical-depth studies; minimum, 3 cfs Sept. 17, 1941 (gage 

height, 1.20 ft); minimum daily, 10 cfs Aug. 14, 1950.

Remarks. Records excellent except those below 50 cfs and those for periods of ice effect 

or no gage-height record, which are good. High flow regulated by Blackwater Reservoir 

since 1941 (see p.119). Some regulation at low flow by mill above station.

Revisions (water years).--W 696: 

iyab (riood-report data).

Drainage area. W821: 1936(M). W851: 1936. W867:

Rating table, water year 1950-51, except periods of ice effect (gage 

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

2.5 

3.0 

3.5

63

135

241

4.0 

4.5 

5.0 

6.0

381

550

790

1,420

3,240

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

Cfsm

In.

Oct.

26

25

26

23

20

*20

19

18

T5

21

31

36

57

75

S6

52

45

40

37

34

31

26

26

28

28

30

30

30

28 

30

33

1,009

32.5

0.252

0.29

Nov.

3232"

34

36

48

92

116

100

*85

70

61

54

48

47

43

41

42

46

46

46

62

98

125

106

89

257

531

939

1,270 

931

-

5,527

184

1.43

1.59

Dec.

437

325

268

243

428

761

*905

635

740

1,020

1,020

715

540

442

368

316

291

275

243

195

181

176

168

172

144

120

T2~5 115

125

130

125

11,743

379

2.94

3.39

Jan.

120

115

TT5

135

180

215

207

181

160

143

140

135

130

122

125

152

160

162

144

143

154

155

150

187

268

331

3TT

255

205

170

140

5,310

171

1.33

1.53

Feb.

130

TS5

187

207

200

178

174

333

500

526

459

400

365

362

375

355

322

288

286

294

286

294

319

299

265

246

246

265

:-

8,319

297

2.30

2.40

Mar.

263

241

225

207

198

196

192

192

192

174

172 TTT

185

214

258

297

308

311

313

359

413

391

331

302

322

346

316

302

368 

498

679

8,937

288

2.23

2.58

Apr.

762

834

917

935

*1,350

1,800

1,780

1,760

1,790

2,100

2,200

2,230

2,250

2,280

2,300

2,310

2,280

1,150

665

574

515

442

432

Tf5

519

562

650

640

512 

442

37,459

1,249

9.68

10.80

May

400

349

308

270

243

225

214

200

192

*178

172

200

239

236

203

176

156

146

139

132

126

120

114

rzs

183

203

178

327

462 

532

US

7,194

232

1.80

2.07

June

316

24T

203

192

187

176

152

130

115

103

93

*88

84

84

118

160

162

143

121

104

93

84

91

121

133

118

93

82

79 

IS

-

3,951

132

1.02

1.14

July

120

144

132

103

90

95

86

81

75

63

59

70

90

73

75

67

64

72

100

110

114

114

93

77

63

58

49

55

123 

162

TET2

2,853

92.0

0.713

0.82

Aug.

133

100

90

85

76

68

63

59

58

59

63

68

67

*60

5_0

58

96

135

145

120

130

*160

207

225

TeT

120

106

102

98 

90

80

3,133

101

0.783

0.90

Sept.

77

88

140

190

190

145

120

115

115

109

*97

80

71

93

155

190

195

T55

160

130

103

90

83

80

80

90

99

105

101 

90

3,566

119

0.922

1.03

Calendar year 1950: Max 1,340 

Water year 1950-51: Max 2,310

Min 

Min 18

194

271

Cfsm 1.50 

Cfsm 2.10

In. 20.38

28.54

.* Discharge measurement made on this day.

Note.--No gage-height record Nov. 8, Dec. 26 to Jan. 6, Aug. 11-22, 27-31, Sept. 2-9, 12-25, 28-30; 

discharge estimated on basis of 1 discharge measurement, weather records, recorded range in stage, 

and stage graph based on damtender's readings for Blackwater Reservoir. Stage-discharge relation 

affected by ice Dec. 20, Jan. 10-15, 22, 23, Jan. 28 to Feb. 1, Feb. 9, 12.
102 MERRIMACK RIVER BASIN 

Contoocook River at Penacook, N. H.

Location. Lat 43°17'10", long. 71°36'00", on right bank at Penacook, Merrimack County, 

half a mile upstream from moutjh.

Drainage area.--766 sq mi.

Records available. Movember 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 273.09 ft above mean sea level, datum of T929.

Average discharge.--23 years, 1,215 cfs.

Extremes. Maximum discharge during year, 11,800 cfs Apr. 4 (gage height, 6.78 ft); minimum, 44 cfs Oct. 20; minimum daily, 149 cfs Oct. 8.

1928-51: Maximum discharge, 46,800 cfs Mar. 20, 1936 (gage height, 14.26 ft, from 

floodmarks); minimum, that of Oct. 20, 1950; minimum daily, 81 cfs Aug. 19, 1950.

Remarks.--Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Flow regulated by mills and by Mubanusit Lake, Edward MacDowell 

Reservoir since March 1950, Highland Lake, Jackman Reservoir, Blackwater Reservoir 

since 1941 (see p.J19) , and other reservoirs above station.

Revisions (water years).--W 756: 1933(M), drainage area. W 871: 1931 (yearly summary 

only)".

Rating table, water year 195O-51, except periods of Ice effect (gage 

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

1.5 

1.8 

2.1 

2.5

131

245

425

840

3.0

4.0 

5.0 

7.0

1,540

3,400

5,820

12,700

Discharge, In cubic feet per second, waber 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 sm

In.

Oct.

197

178

156

a260

a280

a200

*156

149

TeO

171

241

296

308

358

326

281

292

442

393

222

322

266

190

231

365

364

379

338

243

182

254

8,202

265

0.346

0.40

Nov.

254

209

2759"

262

332

445

502

476

442

*434

410

350

263

282

302

281

320

358

332

281

387

737

912

720

526

2,360

6,850

7,030

5,620

*4,440

-

36,326

1,211

1.58

1.76

Dec.

3,360

2,720

2,250

1,930

3,160

4,560

4,350

3,710

4,800

5,450

4,830

4,090

3,420

2,860

2,410

2,020

1,700

1,550

1,450

1,250

1,200

1,100

1 , 000

930

850

800

740

680

630 

TJBT5

680

71,140

2,295

3.00

3.45

Jan.

7OO 7o"U

750

850

1,400

1,550

1,400

1,200

*1,100

1,050

970

920

900

860

800

1,000

1,150

1,100

1,050

980

1,050

1,200

1,250

1,300

1,850

2,050

2,000

1,700

1,300 

1,200

1,100

36,430

1,175

1.53

1.77

Feb.

1,100

1,600

.1,800

1,700

1,700

1,700

*1,650

3,000

4,300

3,900

3,000

2,350

2,370

2,520

2 , 600

2,400

2 , 200

2,000

2,270

2,900

2,900

2 , 900

3,100

2,900

2,550

2,270

2,270

2,430

-

68,380

2,442

3.19

3.32

Mar.

2,400

2,100

1,950

1,690

1,610

1,700

1,730

*1,760

1,800

1,640

1,430

1,570

1,570

1,690

2,320

2,860

2,800

2,540

2,370

2,890

4,050

4,090

3,420

2,980

3,080

3,020

2,760

2,570

2,760 

3,270

5,760

77,980

2,515

3.28

3.79

Apr.

9,080

8,340

8,150

*11,400

10,706

8,530

7,210

6,680

6,340

6,230

7,450

8,240

7,420

6,940

6,480

5,900

5,660

4,850

3,530

3,130

2,700

2,230

2,210

2,590

2,740

3,170

3,300

3,080

2,700 

2,340

-

169,320

5,644

7.37

8.22

May

2,210

2,000

1,830

1,690

1,570

1,380

1,160

1,160

*1,160

1,140

1,100

1,410

1,590

1,440

1,250

1,110

988

912

852

792

720 '504"

792

900

1,270

1,440

1,160

1,700

2,500 

2,460

2,030

42,520

1,372

1.79

2.06

June

1,660

1,350

1,110

988

1,130

1,040

936

804

643

502

*570

676

560

590

879

1,250

1,180

924

768

756

665

600

613

1,220

1,170

1,110

912

840

744 

828

-

27,008

900

1.17

1.31

July

876

840

632

520

520

530

468

434

380

320

350

458

848

948

768

550

468

550

632

1,020

948

864

643

484

540

502

450

618

1,260 

1,210

1,160

20,791

671

0.876

1.01

Aug.

1,180

1,180

974

900

756

621

540

600

632

621

570

442

*434

5373

530

647

1,110

1,270

1,200

936

852

1,040

*1,030

936

792

709

632

665

698 

687

621

24,335

785

1.02

1.18

Sept.

621

698

948

1,100 988

960

924

912

792

*654

621

643

621

665

621

931

960

988

924

828

756

676

580

493 4"9"7

654

676

687

600 

520

-

22,538

751

0.980

1.09

Calendar year 1950 : Max 7,060 Mln 81 Mean 1,133 Cfsm 1.48 In. 20.07

Water year 1950-51 : Max 11,400 Mln 149 Mean 1,657 Cfsm 2.16 In. 29.36

Discharge measurement made on this day

no records lor station near Hennlker.

Note. Stage-discharge relation affected by Ice Dec. 17 to Peb 

MarTT-3, 6.

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

.nd records for station near Hennlker.

, Peb. 15-18, 20, 21, 23, 24,
MERRIMACK RIVER BASIN 

Suncook River at North Chichester, N. H.

103

Location.--Lat 43°15<25", long. 71°22'10", on left bank at North Chichester, Merrimack 

County, 3.1 miles upstream from Little Suncook River.

Drainage area.--157 sq mi.

Records available.--May 1918 to November 1927, November 1928 to September 1951.

Gage. Water-stage recorder. Concrete control since Sept. 14, 1937. Datum of gage is 

~^29.35 ft above mean sea level, adjustment of 1912.

Average discharge.--28 years, (1921-27, 1929-51), 228 cfs.

Extremes.--Maximum discharge during year 2,480 cfs Apr. 4 (gage height, 9.71 ft); maximum 

 gage height, 9.75 ft Feb. 8 (ice jam); minimum discharge, 12 cfs Oct. 9, 10; minimum 

daily, 13 cfs Oct. 2, 3, 9.

1918-51: Maximum discharge, 12,900 cfs Mar. 19, 1936 (gage height, 15.27 ft, from 

floodmarks), from rating curve extended above 4,800 cfs on basis of slope-area and 

contracted-opening determinations of peak flow; minimum, 0.4 cfs Sept. 4, 1926; minimum daily, 1.4 cfs Sept. 4, 1926.

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

which are fair. Plow regulated by mills and reservoirs above station; regulation 

greater prior to 1949.

Revisions (water yearsJ.--W 781: 1923(M). W 871: 1920, 1922, 1923 (yearly summaries 

only).

height, in feet, and discharge, in cubic feet pe 

2 . b 12

effect (gage 

second)

3.5 138

4.0 233

4.5 &31

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

ZO

Zl

22

Z3

Z4

Z5

26

Zl

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

16

13

13

14

14

15

*17

17

13

20

24

23

Zl

17

le

14

15

Ib

17

19

18

18

17

18

18

18

18

18

18

18

17

530

17.1

0 . 109

0.13

Nov.

17

18

18

20

27

25

Z4

'25

27

28

27

25

24

23

23

23

28

35

32

27

65

138

95

84

70

960

1,220

a970

a750

asao

-

5,428

181

1.15

1.29

Dec.

a450

a380

327

303

42b

407

357

*403

1,040

1,030

785

672

566

452

374

343

315

299

275

265

255

240

195

169

165

135

125

125

125

150

170

11,323

365

2.32

2.68

Jan.

IbO

160

155

230

270

210

160

*190

190

185

185

185

180

170

21U

250

240

225

210

200

220

250

280

380

500

450

380

320

290

260

250

7,545

243

1.55

1.79

Feb.

270

330

350

330

320

320

370

1,200

al.OOO

a600

a520

a480

a450

560

480

430

400

800

1,110

945

702

752

808

680

570

493

512

562

_

-

-

16,344

584

3.72

'3.87

Mar.

483

425

360

339

339

335

335

*374

327

270

250 2"§5~

407

488

998

920

755

718

658

942

1,320

1,010

732

675

720

b78

575

562

630

690

1,360

18,970

612

3.90

4.49

Apr.

1,910

1,490

*1,780

2,290

1,720

1,250

992

858

782

785

755

750

720

710

634

E02

462

397

343

339

339

315

383

452

431

634

606

521

462

397

-

24,009

800

5.10

5.69

May

339

292

266

252

225

187

172

160

*158

152

149

169

245

215

181

163

155

149

134

46_

108

106

99

155

255

199

176

644

708 58~9~

379

7,227

233

1.48

1.71

June

273

218

193

187

184

163

141

124

106

93

*85

74

69

Tl

106

138

138

128

110

97

84

80

136

467 273"

187

141

119

110

133

-

4,428

148

0.943

1.05

July

199

181

141

112

91

84

71

66

58

55

54

8T

181

160

116

95

99

97

159

447

315

228

181

138

114

93

82

128

262

209

163

4,460

144

0.917

1.06

Aug.

146

*1E8

106

97

89

84

78

76

76

72

68

64

68

66

6_1

68

101

114

112

99

119

158

*T33

99

85

82

91

84

80

74

69

2,847

91.8

0.585

0.67

Sept.

82

84

155

199

152

126

175

160

131

'112

104

97

89

78

69

64

61

58

53

48

45

43

36

*35

*42

50

49

53

52

52

-

2,554

85.1

0.542

0.60

Calendar year 1950: Max 1,400 Min 3.E Mean 197 Cfsm 1.25 In. 17.01

Water year 1950-51: Max 2,290 Min 13 Mean 289 Cfsm 1.84 In. Z5.03

Peak- discharge (base, 1,500 cfs). Apr. 1 (1:30 to 5 

a.m.) 2,480 efa (9.71 ft) .

* Discnarge measurement made on this day,

a No gage-height record; discharge estimated on basis 

Fiver near Newmarket, and Souhegan River at Merrimack.

Note.--Stage-discharge relation affected by ice Dec. 

2, 3, 10, 11.

2,070 cfs (9.09 ft); Apr. 4 (4 to 5

sather records and records for Lamprey

, Dec. 25 to Feb. 18, Feb. 24, 25, Mar.
104 MERRIMACK RIVER BASIN

South Branch Piscataquog River near Goffstovm, N. H.

Location.--Lat 43"00'50", long. 71°38'30", on right bank 20 ft upstream from highway 

bridge, 1.4 miles upstream from mouth, and 2.2 miles west of Goffstown, Hillsboro 

County.

Drainage area.--104 sq mi.

Records available.--July 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 310 ft (from topographic map).

Average discharge.--11 years, 150 cfs.

Extremes.--Maximum discharge during year, 2.450 cfs Apr. 3 (gage height, 7.94 ft); maximum gage height, 8.55 ft Feb. 8 (ice jam); minimum discharge, 7.1 cfs Oct. 6.

1940-51: Maximum discharge, 4,100 efs June 25, 1944 (gage height, 9.47 ft); maximum gage height, 11.18 ft Mar. 20, 1948 (ice jam); minimum discharge, 3.0 cfs Sept. 

22, 1941.

Remarks.--Records excellent except those for period of ice effect, which are fair. Some 

diurnal fluctuation at low flow caused by mill above 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

3.6

4.0

4.5

Apr. 4 to Sept. 30 

3.2 20 5.0

124

250

Note.--Same as following table above 4.5 ft.

3.6 

4.0 

4.5

435 

950 

I,b40 

2,050

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.

Oct.

8.6

S.b

8. to

8.2

7 .8

7.4

7.4

7.8

7.3 

21

96

85

73

56

45

*35

30

26

27

29

26

24

22

25

28

30

28

26

24

25

24

877.2

28.3

0.272

0.31

Nov.

22

2JL

21

27

82

114

80

62

57 

49

42

38

32

32

*30

30

32

34

35

31

133

184

118

86

80

1,600

1,260

596

451

348

-

5,727

191

1.84

2.05

Dec.

274

232

198

200

754

572

375

471

1,150 

710

520

451

367

232

241

215

180

165

IbO

160

140

130

135

115

100

84

90

85

75

58

120

3,859

286

2.75

3.17

Jan.

110

100

125

240

390

280

210

160

150 

145

*140

140

130

120

125

240

225

200

185

200

230

230

ISO

260

440

350

25U

180

170

140

115

6,160

199

1.91

2.20

Feb.

130

270

350

260

230

220

260

1,100

400

320

280

300

370

*360

290

250

820

1 , 100

820

540

680

700

520

370

360

370

390

_

_

-

12,9bO

463

4.45

4.63

Mar.

350

290

260

230

240

285

290

320

280 

247

229 *22"9~

285

382

812

578

467

419

387

840

980

620

455

511

583

475

371

367

403

451

1,640

14,276

4tl

4.43

5.11

Apr.

1,270

324

1,480

 1,690 9T32"

660

552

480

435 

395

375

367

*395

399

344

302

2d5

268

241

226

209

198

263

302

260

338

299

244

220

198

-

14,421

481

4.62

5.16

May

135

167

150

141

132

123

121

113

108 

100

115

238

212

160

130

112

99

92

85

78

74

*72

66

152

235

150

123

497

463

296

206

4,995

161

1.55

1.79

June

155

121

108

108

108

94

78

67

58 

53

48

*44

4146"

257

423

268

172

123

94

74

61

61

177

172

108

80

69

63

94

-

3 , 430

114

1.10

1.23

July

143

130

88

67

55

54

62

50

44

38

3360"

201

119

72

*58

42

40

118

550

13d

112

80

65

52

40

36

58

217

193

123

2,978

96.1

0.924

1.06

Aug.

145

128

87

78

66

56

48

50

76 

65

53

46

43

38

51

62

192

TTT

117

90

34

115

99

76

65

53

47

47

61

61

47

2,409

77.7

0.747

0.86

Sept.

54

104

216

TaF

113

84

87

79

64

54

47

44

40

37

35

37

*44

40

33

31

28

25

23

23

24

*3fa

40

34

30

27

-

1,718

57.5

0.551

0.61

Calendar year 1950: Max l,bOO Mln 4.5 Mean 137 Cfsm 1.32 In. 17.88

Water year 1950-51: Max 1,690 Min 7.4 Mean 216 Cfsm 2.08 In- 28.18

ft); Apr. 3 (10 p.m.) 2,450 cfs (7.94 ft). 

* Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by 16 to Mar. 9.
MERRIMACK RIVER BASIN 105

Piscataquog River near Goffstown, N. H.

Location.--Lat 43°01'00", long. 71°33'00", on left bank 300 ft upstream from highway 

Bridge, 0.2 mile upstream from Harry Brook, 0.4 mile southwest of Grasmere, and 2.5 

miles east of Goffstown, Hillsboro County.

Drainage area.--2Q2 sq mi.

Records available.--October 1939 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 185 ft (from topographic map). Prior 

£o Dec. 22, 1939, staff sage at same site and datum.

Average discharge. 12 years, 284 cfs.

Extremes.--Maximum discharge during year, 4,120 cfs Apr. 4 (gage height, 9.01 ft); minimum daily, 5.8 cfs Oct. 15,

1939-51: Maximum discharge, 6,760 cfs June 15, 1942 (gage height, 10.79 ft), from 

rating curve extended above 4,400 cfs on basis of computations of flow over dam at 

gage heights 16.03 and 17.52 ft; minimum daily, that of Oct. 15, 1950.

Maximum discharge known, 21,900 cfs Sept. 21, 1938 (gage height, 17.52 ft, from 

floodmarks), by computation of flow over dam.

Remarks.--Records excellent except those below 100 cfs and those for periods of no gageheight record, which are good. Flow regulated by powerplant above station.

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

and discharge, in cubic feet per second)

(Stage-discharge relation affected by ice Jan. 9, 10,

13, 14, 17, 22, 26, 28, 30, Feb. IS, Mar. 10)

2.7

2.8

2.9

3.0

3.1 20

3.3 

3.5 

4.0 

4.5 

5.0

37

29b

513

6.0 1,150

7.O 1,960

8.5 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

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.5

17

17

19

19

19

6.7

6.7

7.0

138

92

163

~9T 244

5.B

30

22

25

8.4

91

26

21

41

53

41

41

48

14

43

45

35

1,439.1

46.4

0.230

0.26

Nov.

68

45

57

93~ 7.3

236

196

144

47

89

45

44

57

50

56

65

38

74

18

54

274

319

228

174

62

1,980

2,520

»1,340

979

735

-

10,094.3

336

1.66

1.8b

Dec.

582

478

420

509

1,130

1 , 100

759

873

1,940

1,460

1,080

902

729

592

493

463

430

403

357

368

243

260

248

267

252

204

193

121

342

12~9 98

17,425

562

2 .76

3.21

Jan.

148

198

281

459

639

577

411

359

312

287

350

416

110

167

457

355

44O

449

354

274

243

484

438

47*

666

523

712

IbO

424

360

210

11,737

379

1.88

2.16

Feb.

2O5

310

430

230

520

430

470

1,55Q

1,600

1,020

800

680

620

*680

747

740

650

863

1,600

1,260

986

1,240

1,400

993

795

735

735

759

-

_

-

23,048

823

4.07

4.24

Mar.

735

729

611

340 430"

612

522

548

480

415

455

502

503

551

995

1,050

874

783

747

1,240

1,79O

1,270

895

937

1,080

937

765

747

741

753

2,360

25.397

819

4.05

4.68

Apr.

2,590

1,650

2,300

3,420

1,86O

1,330

1,100

944

954

789

7fa6

790

808

821

713

682

741

538

495

498

509

207

513

435

542

6O7

662

731

258

506

-

28,759

959

4.75

5.29

May

520

342

325

282

102

84

354

232

250

250

397

145

284

324

284

293

272

218

11

10

177

146

144

343

489

252

136

643

840

763

463

9,380

303

1.50

1.73

June

480

102

90

219

259

254

250

120

10

TO

120

95

70

168

416

667

584

321

247

220

160

157

125

341

480

271

220

198

168

142

-

b,964

232

1.15

1.28

July

145

272

156

104

167

124

66

65

71

98

48

285

576

17b

9.7

*10

45

48

212

686

366

279

210

92

128

125

87

168

458

506

317

6,099.7

197

0.975

1.12

Aug.

300

450

264

125

94

141

118

149

143

136

96

78

100

93

87

131

348

409

179

191

211

204

226

227

8_.7

44

91

106

166

168

156

5,239.7

169

0.837

0.96

Sept.

9.7

160

300

470 2~40~

267

291

53

57

110

100

84

90

89

98

43

53

99

74

99

108

60

10

69

58

53

53

144

9.3

41

-

3,392.0

113

0.559

0.62

Calendar year 1950: Max 2,520 Min E.8 Mean 260 Cfsm 1.29 In. 17.49

Water year 1950-51: Max 3,420 Min 5.8 Mean 408 Cfsm 2.02 In. 27.41

Discharge measurement made on this day.

o_ce_. No gage-height record Jan. 31 TO Feb. 14, June 7-13, Sept. 2-5; discharge 

1 discharge measurement, weather records, and powerplant records.
106 MERRIMACK RIVER BASIN 

Merrimack River near Goffs Falls, below Manchester, N. H.

Location. Lat 42°56'55", long. 71°27'45", on right bank 0.8 mile downstream from Bowman

 Brook, 1.3 miles north of Goffs Falls, Hillsboro County, and 2.3 miles downstream from 

Piscataquog River.

Drainage area. 3,092 sq mi.

Records available.--November 1936 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 105 ft (from topographic map).

Average discharge.--15 years, 5,159 cfs.

Extremes. Maximum discharge during year, 44,600 cfs Apr. 4, 5 (gage height, 13.45 ft);

 minimum daily, 262 cfs Oct. 8.

1936-51: Maximum discharge, 102,500 cfs Sept. 23, 1938 (gage height, 25.87 it), 

from rating curve extended above 48,000 cfs on basis of computation of flow over dam 

at gage heights 25.87 ft and 35.19 ft; minimum daily, 154 cfs Sept. 5, 1949.

Maximum discharge known, 150,000 cfs Mar. 20, 1936 (gage height, 35.19 ft, from 

floodmarks), from rating curve extended above 48,000 cfs by method explained above.

Remarks. Records excellent except those for periods of ice effect, which are good. Flow 

" regulated by powerplants, by Franklin Falls Reservoir since 1942, and by Squam, Newfound, Winnipesaukee, Winnisquam, and other lakes and reservoirs above station. See 

pages 91,119 for description and monthly change in contents of many of these reservoirs.

Rating table, water year 1950-51, except height, in feet, J -.-._-,--_--

ir .Lsou-o-L, eAcep o periods of ice effect (gage 

md discharge, In cubic feet per second)

23f

266

445

700

1,090

1,630

4.0 

5.0 

6.0 

9.0 

13.1

2,340

4,660

8.0OO

22,000

42,900

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

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

350

1,020

1,290

1,100

1,010

938

1,010

262

5oT

1,280

1,450

1,940

2,970

5.160

1,970

2,120

2,250

2,210

1,920

1,850

1,720

526

2 ,46O

1,950

1,910

1,670

1,810

1,730

894

1,950

1,740

49,362

1,592

0.515

0.59

Nov.

1,630

1,470

1,680

1,270

1,210

4,130

5,720

3,980

2,650

2,620

2,530

1,170

1,660

1,790

1,650

1,660

1,510

1,730

867

1,740

2,980

3,980

4,10O

3,390

3 , 000

6,860

22,200

26,6OO

19,700

15,500

-

150,977

5,033

1.63

1.82

Dec.

12,600

9,010

6,920

5,67O

6,450

17,000

IS , 100

11,000

14,200

17,500

15,3OO

12,600

10,6OO

9,010

7,240

6,520

5,750

5,900

*4,350

4,190

3,890

3,66O

3,580

3,470

3,270

b3,200

2,610

2,330

b2,7OO

b2,45O

1,J350

230,420

7,433

2.40

2.77

Jan.

2,390

b3 , 100

b3,500

3,920

4,680

5,210

4,170

4,6bO

4,350

4,190

4,120

3,900

4,1OO

3,090

4,140

3,860

4,540

4,760

4,870

4,210

b3,300

b4,90O

4,530

5,140

6,570

7,170

6,770

4,950

4,450

4,680

b4,45O

138,670

4,473

1.45

1.67

Feb.

4,390

4,580

5,050

5,160

6,240

5,460

6,010

12,300

b!5,400

b!3,300

blO.500

b8,500

7,960

8,200

*b8,300

b7 , 80O

7,130

7,850

9,510

9,860

9,010

9,430

10,500

lD9,350

b7,500

6,950

6,810

7,43O

_

_

-

230,480

8,231

2.66

2.77

Mar.

7,390

6,7*0

7,020

5,960

5,990

6,630

6,660

6,700

6,740

6,210

6,32O

5,800

6,080

7,130

9,640

11,100

10,700

1O,1OO

9,390

11,200

15,100

14,100

12,1OO

10,900

10,900

1O,1OO

9,640

9,560

9,560

10,600

16,500

282,560

9,115

2.95

3.40

Apr.

29,700

30,5OO

29,900

41,600

*42,900

*32,800

24,200

21,800

21,500

20.6OO

21,800

25,300

25,400

24.6OO

23,200

21,000

18,600

16.5OO

13 , 800

12,300

11,400

9,680

9,730

12,800

14,800

14,200

17,800

17,100

13,900

12,900

-

632,310

21,08O

6.82

7.61

May

15,100

11,100

9,600

8,840

7,580

6,070

6,180

5,970

5,470

5,550

5,380

5,820

5,910

6,360

6.O3O

5,070

5,010

4,720

4,480

3,060

4,130

3,370

3 , 080

4,110

4,880

4,350

3,870

5,980

11,500

12,200

10,1OO

198,870

6,415

2.07

2.39

June

7,580

6,250

5,160

4,360

4,730

4,600

4,270

4,100

3,830

2,610

3,250

2,730

2,190

2,570

3,690

4,000

2,490

3,280

3,340

2,820

2,540

2,390

2,270

2,270

4,080

5,620

2,82O

2,640

2,530

2,470

-

105,480

3,516

1.14

1.27

July

2,320

3,480

3,050

2,070

2,240

2,250

3 , 1 10

1,700

1 940

2 ' 080

1,940

2,380

3,960

3,970

2,660

2,390

2,240

2,45O

3,410

4,880

6,170

5,310

3,630

3,460

3,050

2,600

2,150

3,270

3,990

5,660

5,800

99,610

3,213

1.04

1.20

Aug.

4,200

4,540

4,350

3,800

2.66O

3,450

3,260

2,490

2,900

2,870

2,660

1,570

2,390

2,540

2,610

3., 110

4,020

4,420

3,380

4,230

3,680

3,790

4,910

5,240

3,900

2.9OO

3,450

3,390

3,320

3,190

3,300

106,520

3,436

1.11

1.28

Sept.

2,960

2,680

3,160

4,500

4,30O

4,280

4,2OO

4,120

4,470

4,320

3 , 460

3,370

2,930

2,860

2,980

2,650

3,690

*3,680

3,350

3,280

3,020

2,770

2.04O

2,640

2,920

*3,240

2,850

3,410

3,040

2,430

-

99,600

3,320

1.07

1.20

Calendar year 1950: Max 28,6OO Min ISO Mean 4,516 Cfsm 1.46 !" 19.82

Water year 1950-51: Max 42,900 Min 262 Mean 6,369 Cfsm 2.06 In. 27.97

, , . . 

a.m.) 44,600 cfs (13.45 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice 

Note. --Discharge in cubic feet p 

atural flow because of regulation

5 (8 p.

ce. 

ond per square mile and runoff In inches may not represent
MERRIMACK RIVER BASIN 107

Clark Brook at Auburn, N. H.

Location. Lat 43°00'20", long. 71°20'55", on left bank at Auburn, Rookingham County, 

u . 4 mile upstream from Massabesic Lake.

Drainage area.--27.8 sq mi.

Records available.--January 1938 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 252.60 ft above mean 

sea level (city of Manchester benchmark).

Average discharge.--13 years, 36.7 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 277 cfs Apr. 4 (gage height, 1.92 ft); maximum 

gage height, 1.93 ft Feb. 24 (backwater from ice); minimum discharge, 2.3 cfs Sept. 25.

1938-51: Maximum discharge, 355 cfs Apr. 13, 1940 (gage height, 2.14 ft); no flow 

Oct. 5-8, 1939, Dec. 4, 1941.

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

Flow regulated by Tower Hill Pond (capacity, 1,365,000,000 gallons). Some diurnal 

fluctuation caused by mill above station.

Revisions (water years). W 391: 1939. W 921: Drainage area.

Rating "cable, water year 1950-51 (gage height, in feet, and

discharge, in cubic feet per second) 

(Stage-discharge relation affected by ice Jan. 25 to 

Feb. 19, Feb. 24. Backwater from log July 16, 17)

2.3

4.7

0.9

1.2 

1.5 

2.0

39

150

305

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

(t)

Oct.

16

Ib

*14

13

11

9.6

8.7

7 .9

7.1

8.9

9.E

13

16

Ib

15

12

11

9.6

8.7

8.3

7.5

7.1

6.7

6.7

6.7

6.3

6.0

6 .0

5.6

5.3

5.0

299.9

9.67

-18

Nov.

5.0

4.7

*4.7

4.7

6.0

7.4

8.4

8.0

7.0

6 .0

5.4

4.9

4.5

4.0

3.7

3.5

3.2

3.0

2.8

3.0

4.0

7 .O

12

11

27

6O

8278"

64

52

-

496.9

16 .G

+223

Dec.

4O

32

26

24

26

29

26

29

75

92

88

103

74

55

46

42

39

38

35

32

29

26

25

25

27

26

24

22

21

23

25

1,224

39.5

+466

Jan.

27

2T

*29

35

47

48

44

40

37

35

34

33

32

31

34

38

39

39

39

38

39

42

40

44

59

64

57

49

43

38

35

1,237

39.9

+88

Feb.

36

*39

43

46

46

45

52

145

140

90

64

47

40

42

44

40

35

68

175

145

135

160

190

T7U

140

121

110

110

_

_

-

2,518

89.9

+530

Mar.

97

*86

76

69

b9

72

76

79

77

66

62

67

69

75

144

175

162

148

132

142

202 T§9"

178

168

168

16O

142

125

110

103

125

3,623

117

+6

Apr.

178

178

187

270 252~

214

155

138

123

114

118

118

*112

112

103

94

92

84

76

70

61

54

6O

60

4_4

67

76

70

64

60

-

3,4O4

113

+27

May

48

47

39

*34

31

30

29

28

26

25

26

37

44

40

35

30

27

24

22

21

21

20

18

28

47

47

42

69

92

90

79

1,196

38.6

0

June

62

49

39

34

31

27

24

21

18

16

15

*13

10

6.6

16

26

29

26

23

20

16

14

14

16

16

15

14

13

12

13

-

648.6

21.6

-27

July

15

15

16

15

13

12

12

11

10

8.3

12 7.1 

26

31

26

20

16

15

17

26

26

22

19

16

13

11

9.6

11

12

12

11

486. 0

15.7

O

Aug.

11

11

9.9

11

10

9.2

8.3

12

12

11

9.2

8.3

7.5

6.3

6.9

11

21

252"2

18

15

15

13

11

9.6

8.3

7.1

6.3

5.6

5.0

4.4

340.9

11.0

-27

Sept.

5.7

6.2

10

12 T2~

11

11

9.6

8.3

7 .5

6.7

6 .3

5.6

5.0

4.7

4.7

4.7

*4.1

3.6

3.4

3.4

3.1

2.9

2.7

5T?

*4.4

3.8

3.8

3.4

3.1

-

175.9

5.UB

0

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

8.77 

0.315 

0.36

28.

1.0

1.1;

Calendar year 1950: 

Water year 1950-51:

L 62.7 

L 2.26 

2.60

44.3

1.59 

1.84

119 

4.28 

4.47

117 

4.21 

4.86

115 

4.14 

4.61

38.6 

1.33 

1.60

Observed

Max 158 Min 2.8 Mean 29.3 

Max 270 Mln 2.7 Mean 42.9

20. 2

0.727 

0.81

15.7 

0.565 

0.65

9.65 

0.347 

0.40

5.86 

0.211 

O.24

Adjusted

Mean 32.3 Cfsm 1.16 In. 15.76 

Mean 48.3 Cfsm 1.74 In. 23.57

* Discharge measurement made on this day.

t Change in contents in Tower Hill Pond, in millions of gallons, furnished by Manchester Water 

Works.

Note. No gage-height record Nov. 5-29; discharge estimated on basis of weather records, recorded 

range in stage, and records for Blackwater River near Webster, Suncook River at North Chichester, and 

for gate operation at Tower Hill Pond. Stage-discharge relation affected by Ice Jan. 25 to Feb. 19, 

Feb. 24.
18 MERRIMCK RIVER BASIN

Souhegan River at Merrimack, N. H.

Location. Lat 42°51'25", long. 71°30'30", on left bank at head of Atherton Palls, at 

Merrlmack, Hlllsboro County, l| miles upstream from mouth.

Drainage area. 171 sq mi.

Records available.--July 1909 to September 1951.

Gage. Water-stage recorder. Datum of gage is 160.58 ft above mean sea level, unadjusted 

(levels by Corps of Engineers). Prior to Apr. 12, 1911, staff gage at site 300 ft 

downstream at datum 0.38 ft lower. Apr. 12, 1911, to Oct. 14, 1913, chain gage at 

present site and datum.

Extremes.--Maximum discharge during year, 3,200 cfs Nov. 27 (gage height, 7.43 ft); minii909-51: Maximum discharge, 16,900 cfs Mar. 19, 1936 (gage height, 16.2 ft), from 

rating curve extended above 7,200 cfs on basis of velocity-area studies and computation of flow over dam at gage height 12.78 ft; minimum, 13 cfs Sept. 9, 1926.

Remarks. Records excellent except those for periods of ice effect or shifting control, 

which are good, and those for periods of no gage-height record, which are fair. Some 

diurnal fluctuation caused by mill above station.

Revisions (water years).--W 431: 1909-13 calendar years, 1914. W 726: Drainage area. 

W YBI : iaM(M) . fT~871: 1924 (yearly summary only).

Rating table, water year 1950-51, except periods of Ice effect (gag 

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

2.1

2.2 

2.4 

2.6 

3.0

78

173

3.5 

4.0 

5.0 

7.0

330

535

1,080

2,750

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.

Oct.

24

22

22

22

22

22

21

21

22

30

84

94

88

68

52

*44

41

44

36

38

36

36

39

36

43

43

40

38

39

30

30

1,227

39.6

0.232

0.27

Nov.

36

33

34

34

44

90

84

60

68

61

58

49

43

*36

36

36

36

36

39

38

56

173

141

94

90

1,480

2.140

821

571

441

~

6,958

232

1.36

1.51

Dec.

365

316

248

213

945

837

508

500

1.760

1,150

784

675

548

454

389

326

288

260

270

250

205

205

210

185

160

110

140

140

125

160

195

12,921

417

2.44

2.81

Jan.

170

165

210

394

718

490

343

227

260

230

236

*245

233

193

206

392

385

334

292

323

340

350

290

405

878

640

433

307

260

230

193

10,372

335

1.96

2.26

Feb.

198

492

650

425

373

362

376

1,960

1,330

680

494

468

517

696

580

458

397

1,180

2.590

1,360

906

1,200

1,500

804

630

620

650

680

-

-

~

22,576

806

4.71

4.91

Calendar year 1950: Max 2,140 Mln 21

Mar.

535

454

420

370

389

476

486

576

522

413

350

365

454

600

1,250

880

740

640

600

1,350

1,550

1,000

700

800

900

720

600

570

640

720

2,500

22,570

728

4.26

4.91

Apr.

2,000

1,300

2,200

2.600

1,300

1,050

880

760

680

630

600

580

640

620

540

480

440

410

380

350

330

320

350

390

476

486

437

381

292

260

~

22,162

739

4.32

4.82

May

281

257

224

218

213

165

179

176

179

157

170

327

322

257

260

218

187

154

134

126

114

119

134

180

437

232

232

641

873

534

393

8,184

264

1.54

1.78

June

348

288

219

176

198

193

162

124

138

92

86

88

*105

93

314

675

418

348

309

245

195

165

146

134

126

107

100

86

86

100

~

5,864

195

1.14

1.28

July

124

151

157

110

100

105

107

76

*70

82

90

89

289

288

187

110

*92

98

122

500

366

223

141

149

131

116

94

104

221

242

216

4,950

160

0.936

1.08

Aug.

210

292

213

181

153

110

103

128

195

170

144

110

88

80

84

90

235

334

240

165

165

190

176

138

119

107

88

121

198

166

119

4,912

158

0.924

1.07

Sept.

124

144

255

290

245

190

190

184

116

98

90

90

100

96

98

68

68

82

*82

84

70

64

58

54

65

76

*86

82

80

64

~

3,393

113

0.661

0.74

Mean 219 Cfsm 1.28 In. 17.42

Water year 1950-51: Max 2,600 Mln 21 Mean 345 Cfsm 2.02 In. 27.44

Peak discharge (base, 2,250 cfs). --Nov. 27 (1 a.m.) 3,200 cfs (7.43 ft)s Feb. 8 (4 p.m.) 2,560 cfs

(6.81 ft); Feb. 19 (5 to 6 a.m.) 3,040 cfs (7.28 ft); Mar. 31 (time ana discharge unknown); Apr. 4

* Discharge measurement made on this day.

Hote. No gage-height record Mar. 14 to Apr. 24j discharge estimated on basis of weather records 

and records for South Branch Plscataquog River near Goffstown. Stage-discharge relation affected by 

Ice Dec. 19 to Jan. 3, Jan. 21-23, 29, 30, Feb. 26, 27, Mar. 3, 4. Shifting-control method used 

Oct. 1-11.
MERRIMACK RIVER BASIN 

North Nashua River near Leominster, Mass.

109

Location. Lat 42°30'06", long. 71°43'23", on right bank I 1/3 miles upstream from

Wekepeke Brook, 2-J miles southeast of Leominster, Worcester County, and 6.1 miles upstream from confluence with South Branch Nashua River.

Drainage area. 107 sq mi.

Records available.--September 1935 to September 1951.

 T929. Gage. Water-stage recorder. Datum of gage is 270.04 ft above mean sea level, datum of 

Average discharge. 16 years, 183 cfs.

Extremes.--Maximum discharge during year, 4,390 cfs Feb. 8 (gage height, 8.45 ft), from 

rating curve extended above 1,300 cfs by logarithmic plotting; minimum, 24 cfs Oct. 9; 

minimum daily, 31 cfs Oct. 9.

1935-51: Maximum discharge, 16,300 cfs Mar. 18, 1936 (gage height, 20,53 ft, from 

floodmarks), by computation of flow over dam; minimum, 11 cfs Aug. 29, 1948; minimum 

daily, 22 cfs Sept. 27, 1936.

Remarks.--Records excellent except those for periods of ice effect, shifting control, or 

backwater from debris, all of which are fair. Plow regulated by mills above station. 

Discharge includes flow diverted from 2.1 sq mi in Squannacook River basin to North 

Nashua River basin for municipal supply of Pitchburg.

Rating tables, water year 1950-51, except periods of Ice 

control, and backwater from debris (gage height, In F 

In cubic feet per second)

effect, shifting 

et, and discharge,

Oct. 1 to Nov. 26

1.3 26

1.5 40

2.0 91

3.0 234

Nov. 26 to Sept. 30

1.6 

2.0 

3.0 

4.O

49

91

223

425

5.0 

6.0 

7.0

820

1,470

2,410

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.

Oct.

37

32

45

44

44

44

43

37

31

*133

93

94

76

56

47

40

51

52

50

50

45

40

43

53

51

50

56

44

39

41

*47

1,614

52.1

0.487

0.56

Nov.

47

48

56

54

77

58

60

54

54

54

49

41

45

47

48

51

50

45

40

IF

174

102

61

62

111

 

2,220 5H2~

333

226

171

-

5,139

171

1.60

1.79

Dec.

150

128

110

*200

518

244

190

458

745

407

366

298

220

*187

176

163

149

162

133

125

110

b!05

b!05

blOO

b!05

bllO

blOS

b84

b80

bl3E~

141

6,305

203

1.90

2.19

Jan.

125

133

160

333

*337

212

175

177

150

144

142

142

123

114

5~5ir

303

212

176

190

£02

252

244

171

441

452

309

22O

179

195

164

133

6,562

212

1.98

2.28

Feb.

208

776

325

247

*226

194

670

2,160

 Binr

348

267

264

267

327

253

210

183

1,570"

*913

*494

386

998

684

420

337

321

313

286

_

_

-

14,446

516

4.82

5.02

Mar.

247

241

202

220

309

303

*283

315

262

207

187

2l!5~

204

374

741

479

362

294

292

*738

720

509

403

488

506

4O6

327

290

281

321

1,310

12,046

389

3.64

4.19

Apr.

873

614

1,280

*1,130

648

494

406

359

362

327

311

288

335

301

267

276

247

225

207

194

163

160

337J

313

260

269

233

194

171

188

-

11,425

381

3.56

3.97

May

157

159

140

123

116

105

122

109

116

103

167

281

214

*184

149

127

118

102

95

85

101

96

91

338

333

201

199

540

515

329

260

5,778

186

1.74

2.01

June

198

145

136

156

138

127

102

107

90

78

81

79

71

1ST

370

406

275

*264

184

143

114

110

92

89

144

109

98

95

110

108

-

4,357

145

1.36

1.51

July

110

116

87

74

89

99

80

61

6T

*66

65

148

288

160

102

98

86

91

260

323

172

120

114

98

95

77

78

435 2BB"

214

157

4,317

139

1.30

1.50

Aug.

174

129

129

137

85

95

90

135

118

108

98

97

105

89

83

143

189

TIT

109

117

120

109

98

83

80

70SB124

92

91

78

3,417

110

1.03

1.19

Sept.

77

117

208

m

127

114

107

81

65

73

75

80

70

71

66

63

62

71

65

64

70

58

53

56

68

74

68

64

56

49

-

2,443

81.4

0.761

0.85

Calendar year 1950: Max 2,220 Mln 27 Mean 144 Cfsm 1.35 In. 18.22

Water year 1950-51: Max 2,220 Mln 31 Mean 213 Cfsm 1.99 In. 27.06

Peak discharge (b

3 p.

1,800 cfs (6.39^ftj; Apr. 3 (7 p.m.) 2,03o"cfs (6.64 f t j '. 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

Note. Backwater from debris Nov. 27 to Dec. 13. Shifting-control method use

2 p.m.)
110 MERRIMACK RIVER BASIN

Rocky Brook near Sterling, Mass.

Location.--Lat 42°26'57", long. 71°48'10", on right bank 150 ft downstream from bridge on

 tseaman Road, 0.7 mile upstream from mouth, and 2-J- miles west of Sterling, Worcester 

County.

Drainage area.--2.28 sq mi.

Records available.--October 1946 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 505 ft (from topographic map).

Average discharge. 5 years, 3.06 cfs.

Extremes.--Maximum discharge during year, 58 cfs Feb. 18 (gage height, 3.45 ft); maximum

 gage height, 3.91 ft Feb. 7 (backwater from ice); minimum discharge, 0.01 cfs Oct. 1-10.

1946-51: Maximum discharge, 73 cfs Mar. 20, 1948 (gage height, 3.54 ft); maximum 

gage height, that of Feb. 7, 1951; minimum discharge, 0.01 cfs several days in August 

and September 1949, Aug. 16-19, Sept. 10, Oct. 1-10, 1950.

Remarks.--Records good except those for periods of ice effect, which are fair. Flow regulated by reservoir since 1949.

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. 9 Apr. 10 to Sept. 30

1.75

1.8

1.85

1.9

1.95

2.0

0.01 

.03 

.06 

.10 

.16 

.25

2.1

2.2

2.3

2.4

2.5

2.6

0.51

.89

1.3

1.85

2.4

3.1

2.7

2.8

2.9

3.0

3.1 

3.3

2.0

2.1 

2.3

2.5

2.6

0.32

.60

1.4

2.05

2.7

2.7 3.9

2.8 6.1

2.9 9.5

3.0 14.0

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.

Oct.

0.01

.01

.01

.01

.01

.01

.01

.01

.01

.21

.80

.80

1.02

.50

.32

.21

.16

.14

.12

.11

.10

.09

.09

.11

.12

.12

.12

.11

.11

.10

.10

5.65

0.182

0.080

0.09

Nov.

0.09

.09

.08

.10

.70

*.77

.49

.36

.29

.23

.20

.16

.16

.34

2.5

2.9

3.8

5.6

5.6

5.8

8.3

2.05

3.6

3.3

6.7

~?.9 £4

5.9

6.4

6.0

~

103.41

3.45

1.51

1.69

Dec.

5.8

5.6

5.6

8.2

*11.4

3.6

6.0

11.9

12^5

5.8

9.0

8.3

7.5

6.9

6.6

6.6

6.6

6.6

6.4

6.0

5.8

6.0

6.1

6.2

5.7

5.0

4.3

3.6

6.5

10

8.0

214.1

6.91

3.03

3.49

Jan.

7.4

7.0

8.0

11

8.5

7.3

6.7

6.3

6.0

5.8

5.6

5.4

5.0

4.2

7.8

8.0

5.6

4.9

5.1

6.0

7.5

4.9

3.8

12

10.8

7.2

5.4

4.1

3.8

3.2

3^0.

197.3

6.36

2.79

3.22

Feb.

3^6

11

6.5

5.6

4.7

3.8

9.0

20

14

9.0

6.8

6.0

7.5

8.3

6.4

5.1

4.5

34

17.9

12.2

9.5

23

7.8

5.0

4.9

4.5

4.9

4.3

-

-

-

259.8

9.28

4.07

4.24

Calendar year 1950: Max 24 Min 0.01

Mar.

3.6

3.1

2^1

3.3

5.1

4.5

*4.9

4.5

3.6

2.9

2.9

3.0

3.0

9.8

11.0

5.6

4.3

3.7

3.3

14.2

7.6

5.8

4.9

8.5

6.9

4.7

3.7

3.6

3.6

4.3

28

180.8

5.83

2.56

2.95

Apr.

9.0

6.2

.SAILS

7.2

5.8

4.7

4.3

3.7

*3.6

3.5

3.1

4.3

3.6

3.0

2.8

2.7

2.5

2.4

2.3

*2.15

2.05

5.2

3.6

2.7

2.6

2.3

2.0

2.0

1.85

~

136.95

4.56

2.00

2.23

May

1.75

1.65

1.6

1.55

1.55

1.5

1.55

1.45

1.4

1.45

2.9

7.3

2.9

*2.0

1.75

1.5

1.4

1.4

1.3

1.25

1.25

1.13

.92

11.0

4.9

2.7

3.6

12.6

7.5

4.8

3.6

93.15

3.00

1.32

1.52

June

2.6

2.2

2.1

.95

.8

.7

.5

.5

.13

.84

.73

.66

.56

2.2

11.0

8.0

4.8

*3.6

2.7

2.05

.7

.5

.4

.4

.35

.13

.08

.02

1.09

1.4

-

66.49

2.22

0.974

1.08

July

2.4

2.35

1.4

1.13

1.9

2.1

1.45

.92

.70

*.53

.44

3.8

6.8

2.5

1.7

1.3

1.13

*1.23

7.4

6^

2.7

2.0

1.75

1.45

1.13

.84

.77

1.6

2.1

1.55

1.23

64.90

2.09

0.917

1.06

Aug.

1.4

1.4

.88

.84

.63

.41

.34

.53

.66

.60

.47

.38

.44

.36

.ZZ

1.02

4.4

2.35

1.65

1.6

1.75

1.55

1.08

*.88

.80

.70

.60

.60

.60

.50

.41

30.15

0.973

0.427

0.49

Sept.

0.36

.95

2.8

1.7

1.18

2.2

8^

7.8

7.5

7.5

7.5

7.1

6.8

6.8

6.8

6.8

5.8

5.5

5.8

5.8

5.5

5.5

5.5

5.2

5.2

5.2

5.0

5.0

4.8

4.6

~

156.69

5.22

2.29

2.56

Mean 2.26 Cfsm 0.991 In. 13.47

Water year 1950-51 1 Max 34 Min 0.01 Mean 4.14 Cfsm 1.82 In. 24.62

Peak discharge (base. 45 efs). Nov (3:30 a.m.) 51 cfs (3.40 ft); Feb. 18 (8:30 a.m.) 58 cfs

(3.45 ft); Mar. 31 (6 a.m.) 56 cfs (3.43 ft); Apr. 3 (l to 2 p.m.) 45 cfs (3.35 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 20 to Jan. 14, Jan. 22-24, Jan. 27 to Feb. 3, 

Feb. 7-11, 15, 16, 24. Discharge in cubic feet per second per square mile and runoff in inches may 

not represent natural flow because of regulation.
MERRIMACK RIVER BASIN 111

South Branch Nashua River at Clinton, Mass.

Location.--Lat 42°24'15", long. 71°41'25", at Wachusett Dam, 1 mile south of Clinton, 

Worcester County.

Drainage area. 107.69 sq mi since July 1937.

Records available.--July 1896 to September 1951.

Average discharge. 55 years, 182 cfs (adjusted to present drainage area).

Remarks. Flow regulated by Wachusett Reservoir and several ponds. Records adjusted for 

cnange in contents in and wastage from Wachusett Reservoir, and diversions from Ware 

River and Quabbin Reservoir on Swift River. Entire flow, except wastage, diverted for 

use of Boston metropolitan district.

Cooperation. Records furnished by water division of Metropolitan District Commission. 

Revisions (water years). W 1051: 1928.

Monthly discharge and rainfall, water year October 1950 to September 1951

Month

December. ............

Calendar year 195O.

September. ...........

Water year 1950-51.

(millions of 

gallons)

2 19 1 4

3,390.9

29,617.7

898.2

46,185.8

Discharge per

Millions 

of gallons 

per day

1.016

.754

.278

1.175

square mile

Cubic feet 

per second

1.57

1.17

3.80

.430

1.82

Runoff 

(inches)

0.23

1.81

15.82

4.23

1.33

.48

24.68

Rainfall 

(inches)

4.18

43.75

5.25

2.94

3.18

2.38

50.08
MERRIMACK RIVER BASIN

Squannacook River near West Groton, Mass.

Location.--Lat 4S°38'03", long. 71°39'30", on left bank 0.7 mile downstream from Trout 

brooK and 2.7 miles northwest of West Groton, Middlesex County.

Drainage area.--62.8 sq mi, excludes 2.10 sq mi above outlet of Fitchburg Reservoir. 

Records available.--October 1949 to September 1951.

Gage. Water-stage recorder. Datum of gage is 244.27 ft above mean sea level, datum of T929.

Extremes.--Maximum discharge during year, 1,440 cfs Feb. 19 (gage height, 6.03 ft); min-

 imum daily, 4.5 cfs Oct. 4.

1949-51: Maximum discharge, that of Feb. 19, 1951; minimum daily, 4.3 cfs Aug. 14, 

1950.

Remarks. Records excellent except those for periods of ice effect, which are good, and 

tnose for periods of no gage-height record, which are fair. Flow regulated by mill 

above station. Entire flow from 2.10 sq mi above outlet of Fitchburg Reservoir diverted for municipal supply of Fitchburg.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

1.4

1.6 

1.8

3.3 

7.7

3.0 

3.5 

4.0 

5.0 

5.5

138

234

362

760

1,060

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.

Oct.

8.2

6.4

4.7

4.5

6.5

6.0

5.8

6.7

*5.8

11

14

17

29

30

15

17

18

15

17

13

12

10

9.8

12

12

12

14

a!3

alO

a9.0

*a9.0

373.4

12.0

0.191

0.22

Nov.

6.7

9.6

12

13

18

31

28

31

33

33

27

19

20

19

*20

18

14

15

11

12

38

72

34

18

34

268

449

194

127

*110

-

1,734.3

57.8

0.920

1.03

Dec.

99

86

63

83

196

220

134

121

420

351

225

190

153

127

108

93

88

96

80

67

62

59

61

56

68

b70

b67

b43

22

b55

66

3,629

117

1.86

2.15

Jan.

83

70

69

*124

225

169

113

104

99

84

81

75

75

70

94

145

135

112

107

118

134

b!45

bl!2

142

529

246

161

111

114

blOO

b80

3,826

123

1.96

2.27

Feb.

blOO

162

206

141

129

116

*119

717

498

243

169

158

165

223

189

153

130

569

*1,040

428

286

455

546

293

221

221

212

214

-

-

-

8,103

289

4.60

4.80

Mar.

177

150

148

130

178

*188

190

214

181

140

124

148

145

158

483

374

246

192

182

291

562

342

248

257

323

276

208

180

181

182

461

7,258

234

3.73

4.30

Apr.

696

387

419

*791

444

309

£52

212

212

192

182

179

194

221

174

181

157

143

132

128

112

99

154

212

166

164

155

133

105

120

-

7,025

234

3.73

4.16

May

94

95

84

83

80

67

82

*70

70

68

70

163

159

121

96

80

74

61

44

46

63

57

52

101

232

148

89

266

384

222

171

3,492

113

1.80

2.07

June

126

110

69

90

82

74

62

60

44

31

46

41

40

41

148

262

178

184

*141

90

80

64

49

52

73

85

44

39

53

59

"

3,523

84.1

1.34

1.49

July

60

62

51

41

40

*43

44

34

39

2_5_

25

38

214

162

73

65

57

60

77

252

170

87

80

57

45

37

48

143

244

158

94

2,625

84.7

1.35

1.55

Aug.

86

86

77

65

52

52

35

60

77

52

51

38

42

41

45

33

*73

100

67

63

52

54

46

46

43

29

22

30

41

44

33

1,635

52.7

0.839

0.97

Sept.

40

37

109

124

78

55

62

63

34

39

35

26

21

24

25

19

28

27

24

23

24

25

16

26

34

28

20

19

20

15

'

1,124

37.5

0.597

0.67

Calendar year 1950: Max 683 Min 4.3 Mean 74.3 Cfsm 1.18 In. 16.06

Water Water year year 1950-51: 1950-51: Max Max 1,040 1,040 Min Min 4.5 4.5 Mean Mean 119 119 Cfsm Cfsm 1.89 1.89 In. In. 25.68 25.68

Peak discharge (base. 670 cfs).--Feb. 8 (5:30 p.m.) 972 cfs (5.57 ft); Feb. 19 (1:50 to 3:50 a.m.) 

1,440 cfs (6.03 ft); Apr. 1 (2 to 3 a.m.) 882 cfs (5.22 ft); Apr. 4 (8 to 9 a.m.) 906 efs (5.26 ft). 

* TMsnharcre Discharge measurement measurement made made on on thlR this dav. day.

No gage-height record; discharge estimated on basis of weather

and typical regulation patt 

b Stage-discharge relatio

ords, recorded range in stage,

affected by ICE
MERRIMACK RIVER BASIN 113

Nashua River at East Pepperell, Mass.

Location.--Lat 42°40'03", long. 71°34'32", on right bank 200 ft downstream from powerplant 

or at. Regis Paper Co. (formerly Nashua River Paper Co.) at East Pepperell, Middlesex 

County, and 0.8 mile upstream from Nissitissit River.

Drainage area.--Total above gage, 433 sq mi; net above gage, 316 sq mi (flow diverted from 

llY sq ml for use of Boston metropolitan district and city of Worcester).

Records available. October 1935 to September 1951.

uage : -.water-stage recorder. Datum of gage is 159.04 ft above mean sea level, datum of

Average discharge.--16 years, 500 cfs (adjusted for wastage into Nashua River).

.extremes. --Maximum discharge during year, 3,410 cfs Feb. 19 (gage height, 7.67 ft); minimum daily, 16 cfs July 4.

1935-51: Maximum discharge, 20,900 cfs Mar. 20, 1936 (gage height, 19.1 ft, from 

floodmarks), from rating curve extended above 12,000 cfs on basis of velocity-area 

studies; minimum daily, 1.1 cfs Aug. 13, 1939.

Remarks.--Records excellent except those for periods of shifting control or backwater from 

aquatic vegetation, which are good. Figures of daily discharge include water wasted in 

diverting drainage from basin of South Branch Nashua River for use of Boston metropolitan district and water diverted around station through plant of St. Regis Paper Co. 

Plow regulated by powerplant above station.

Revisions.--W 801: Drainage area.

Rating tables, water year 1950-51, except periods of shifting control or 

backwater from aquatic vegetation (gage height, in feet, and discharge 

In cubic feet per second)

Oct. I to Feb. 18

3.0 890

5.0 1,970

7.0 3,270

Note. Same as

following table

below 3.0 ft.

0.3 

.5

.7 

1.0 

1.5

Feb. 19 to Sept. SO

118

266

3.0 

5.0

8.0

452

890

1,870

3,610

Dlsr-narge, 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

(t)

Oct.

89

81

85

88

94

92

101

89

*93

95

100

184

254

173

105

106

103

140

139

114

112

58

105

113

111

110

112

106

60

60

100

3,372

109

7.4

Nov.

103

103

103

105

64

298

*249

102

119

139

190

76

171

104

103

127

234

174

106

103

217

373

95

211

199

82*

1.480

1,260

831

*573

-

8,835

294

6.9

Dec.

467

394

367

358

590

723

718

768

976

1.180

1,100

1,040

865

637

598

481

365

369

544

623

387

357

357

111

31

461

441

440

329

519

204

16,800

542

5.4

Jan.

19

526

449

579

*714

949

544

376

472

535

476

428

321

356

477

626

710

705

696

684

224

691

617

798

1,030

1,050

1,030

667

615

615

585

18,564

599

14.4

Feb.

514

894

1,040

1,040

774

688

775

1,800

2,660

2,130

1,080

1,160

1,060

1,050

1,040

1,020

889

1,200

*3,000

*2,910

1,910

1,720

2,200

1,940

1,420

1,180

1,140

1,120

-

-

-

39,354

1,406

45.8

Mar.

1,090

1,040

1,000

873

886

*860

684

734

1,020

990

274

671

813

746

1,170

1,680

1,430

1,180

1,050

1,140

1,790

2,050

1, 820

1,650

1,380

1,700

1,420

1,220

1,100

1,040

1,320

35,821

1,156

104

Apr,

2,050

2,570

2,440

*2,900

3,510

2,810

2,180

1,470

1,560

1,360

1,230

1,160

1,110

1,140

1,080

1,020

1,020

953

708

705

705

624

590

713

1,030

935

840

837

310

523

"

39,883

1,329

195

May

705

598

420

365

488

143

*473

325

278

338

495

930

309

817

539

535

531

464

361

103

219

294

297

692

1,040

1,020

246

825

1.310

990

1,170

17,320

559

6.1

June

1,050

921

164

272

464

589

422

372

372

101

217

294

291

360

820

1,060

520

1,100

*826

723

677

365

369

95

288

376

392

392

377

439

-

14,708

490

5.3

July

135

449

371

11

476

491

331

*68

202

201

*196

272

498

927

157

242

329

300

339

832

1,040

218

329

383

296

367

349

372

646

1.060

741

12,633

408

7.2

Aug.

606

557

509

397

125

328

368

390

411

403

399

90

242

329

306

307

502

376

354

592

448

431

331

307

304

127

400

371

399

442

404

LI, 555

373

7.6

Sept.

461

213

340

824

792

743

571

371

76

436

249

229

210

210

254

58

249

230

199

204

213

206

40

148

213

210

177

169

169

169

-

8,633

288

6.4

Adjusted for wastage (figures represent net discharge from net drainage area)

Mean 

crsm 

In.

101 

0.320 

0.37

0.911 

1.02

Calendar year 1950: 

Water year 1950-51:

537

1.70 

1.96

584 

1.85

2.13

1,360 

4.30 

4.48

1,052 

3.33 

3.84

1,135 

3.59

4.01

553

1.75 

2.02

Observed

Max 2,250 Win 7.0 Mean 362 

Max 3,310 Mln 16 Mean 623

485 

1.53

1.71

400 

1.27 

1.46

365 

1.16 

1.33

281 

0.889 

0.99

Adjusted

Mean 354 Cfsm 1.12 In. 15.20 

Mean 589 Cfsm 1.86 In. 25.32

Discharge measurement made on this day.

f South Bran 

second. Re

, _,. wasted in diverting drainage from basin 

metropolitan district, equivalent in cubic feet p 

of Metropolitan District Commission.

Note. Backwater from aquatic vegetation Oct. 1 to Dec. 27, May 20, 21, 27, 28, Ji 

17, June 20 to Sept. 30. Shifting-control method used Feb. 19, Sept. 8-3O.

h Nashua River for use of Boston 

ords furnished by Water Division

3, 4, 10-15,
114 MERRIMACK RIVER BASIN

Assabet River at Maynard, Mass.

Location.--Lat 42°25'55", long. 71°27'0l", on right bank at Maynard, Middlesex County, 

 I'bO ft upstream from bridge on State Highway 27, 1.7 miles downstream from Assabet 

Brook, and 7.1 miles upstream from confluence with Sudbury River.

Drainage area.--116 sq mi.

Records available.--July 1941 to September 1951.

Gage. Water-atage recorder. Altitude of gage is 145 ft (from topographic map).

Average discharge.--10 years, 146 cfs.

Extremes.--Maximum discharge during y^ar , 920 cfa Feb. 19 (gage height, 4.72 ft); minimum daily, 11 cfs Oct. 7,8.

1941-51: Maximum discharge, 1,460 cfs Mar. 21, 1948 (gage height, 5.75 ft); minimum daily, 3.5 cfs Aug. 17, 1941.

Remarks.--Records good. Plow regulated by mills above station.

Rating tables, water year 195O-51 (gage height, in feet, and

discharge, in cubic feet per second)

(Stage-discharge relation affected by ice Jan. 9. Shiftingcontrol method used Feb. 18, 19)

Oct. 1 to Feb. 17 Feb. 18 to Sept. 30

1.6

1.7 

1.9

50

2.5 

3.0 

4.0 

4.5

121

240

575

785

1.8

1.9 

2.1 

2.5

29

54

132

3.0 255

4.0 600

4.6 860

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

Cfsro

In.

Oct.

12

29

30

31

28

30

11

11

32

32

28

47

*74

47

42

51

42

36

34

38

14

14

34

29

35

37

36

13

13

36

33

979

31.6

0.272

0.31

Nov.

32

31

35

34

14

*34

33

52

49

42

16

22

44

39

33

38

35

12

12

42

52

71

56

67

48

275

350

368

344

269

"

2,549

85.0

0.733

0.82

Dec.

218

172

148

152

*182

201

194

208

279

316

318

296

265

233

206

179

172

167

146

125

114

100

86

95

97

94

89

11

83

121

145

5,278

170

1.47

1.69

Jan.

*143

139

136

188

223

221

200

166

160

145

133

130

126

118

170

216

228

223

220

223

247

249

222

243

328

364

309

267

245

208

171

6,361

205

1.77

2.04

Feb.

160

252

303

288

270

233

265

634

722

620

450

340

350

354

342

300

264

466

844

810

*608

556

624

572

480

438

417

375

-

-

"

12,337

441

3.80

3.96

Mar.

354

330

300

303

*327

330

330

318

300

264

245

270

225

255

375

434

410

363

327

370

473

516

496

484

488

484

428

378

348

324

396

11,245

363

3.13

3.61

Apr.

504

560

600

806

824

668

540

459

*448

396

375

360

357

342

309

333

291

270

252

240

202

202

250

242

240

232

220

202

168

210

-

11,102

370

3.19

3.56

May

182

168

120

*152

123

100

150

121

112

110

121

185

222

252

212

182

150

132

108

87.

130

108

98

164

291

324

282

351

354

327

315

5,733

185

1.59

1.84

June

250

193

156

181

150

137

125

108

90

66

113

90

88

90

132

242

285

*315

267

222

102

146

101

92

138

104

88

84

71

68

~

4,374

146

1.26

1.40

July

51

117

90

34

98

72

61

25

85

68

60

57

59

21

21

68

22

22

54

207

201

173

143

97

78

70

73

26

51

64

78

2,346

75.7

0.653

0.75

Aug.

33

88

45

41

32

75

22

23

45

*42

22

34

48

32

44

49

144

146

104

144

146

134

114

89

37

65

66

53

50

50

32

2,049

66.1

0.570

0.66

Sept.

49

30

71

125

93

72

49

40

53

66

33

34

38

39

38

45

54

33

33

36

34

32

29

38

33

33

33

*32

30

27.

~

1,352

45.1

0.389

0.43

Calendar year 1950: Max 740 Min 11 Mean 111 Cfsro 0.957 In. 12.95

Water year 1950-51: Max 844 Min 11 Mean 180 Cfam 1.55 In. 21.07

* Discharge measurement made on this day.
MERRIMACK RIVER BASIN 

Sudbury River at Framingham Center, Mass.

Location. Lat 42°17'30", long. 71°26'40", at dam of Framingham Reservoir No. 1, half a

mile upstream from outlet of Farm Pond and three-quarters of a mile southwest of

Framingham Center, Middlesex County.

Drainage area.--75.2 sq mi since 1881.

Records available. January 1875 to September 1951.

Average discharge.--76 years, 110 cfs (adjusted to present drainage area).

Remarks.--Records adjusted for change in reservoir contents, diversions, and wastage. 

Flow diverted as needed for use of Boston metropolitan district. Part of flow from 

Wachusett Reservoir on South Branch Nashua River is diverted into Sudbury Reservoir 

en route to Boston metropolitan district.

Cooperation.--Records furnished by Water Division of Metropolitan District Commission. 

Revisions (water years).--W 1051: 1937.

Monthly discharge and rainfall, water year October 1950 to September 1951

115

Month

December .................

Calendar year 1950.....

August . ... ....

Water year 1950-51 .....

(millions of 

gallons)

3,027.8

17,900.9

26,600.9

Discharge pe

Millions of 

gallons 

per day

1.299

.652

.969

r square mile

Cubic feet 

per second

2.01

1.01

1.50

(inches)

2.32

13.71

3.58

1.77

.11

20.36

(inches)

3.82

42.03

4.60

4.72

3.20

2.81

1.99

45.56

Note. Negative figures indicate that evaporation and seepage from exceeded inflc
MERRIMACK RIVER BASIN

Lake Cochituate Outlet at, Cochituate, Mass.

Location. Lat 42°18'45", long. 71°23'15", at outlet three-eighths of a mile north of 

uoctiltuate railroad station, Middlesex County, and 1-f miles upstream from Sudbury 

River.

Drainage area.--17.40 sq mi since January 1937.

Records available.--January 1863 to September 1951.

Average discharge. '88 years! 24.6 cfs (adjusted to present drainage area).

Remarks.--Records adjusted for change in reservoir contents, diversions, and wastage. 

Entire flow available, if needed, for use of Boston metropolitan district; no diversion for water supply since 1931.

Cooperation.--Records furnished by water division of Metropolitan District Commission. 

Monthly discharge and rainfall, water year October 1950 to September 1951

Month

Calendar year 1950...

July...................

September. .............

Water year 1950-51...

(millions of 

gallons)

3,548.2

145 °

14.0

5,920.4

Discharge per

Millions 

of gallons 

per day

905

.559

1 334

° 392

.027

.932

square mile

Cubic feet 

per second

.864

.042

1.44

Runoff 

(inches)

11.71

.05

19.58

Rainfall 

(inches)

43.05

2.01

48.06
MERRIMACK RIVER BASIN 117

Concord River below River Meadow Brook, at Lowell, Mass.

Location. Lat 42°38'12", long. 71°18'09", on right bank 300 ft downstream from Rogers

 Street Bridge at Lowell, Middlesex County, 0.3 mile downstream from River Meadow Brook, 

and 0.8 mile upstream from mouth.

Drainage area.--Total above gage, 405 sq mi; net above gage, 312 sq mi (diversion as needed 

from ya.b sq mi for use of Boston metropolitan district).

Records available. December 1936 to September 1951.

Gage. Water-stage recorder. Datum of gage is 67.41 ft above mean sea level, datum of

Average discharge. 14 years (1937-51), 417 cfs (adjusted to net drainage area).

Extremes. Maximum discharge during year, 2,070 cfs Apr. 7 (gage height, 6.92 ft); minimum,

 2B~cTs Nov. 4; minimum daily, 42 cfs Oct. 8.

1936-51: Maximum discharge, 3,790 cfs July 29, 1938 (gage height, 8.11 ft); minimum, 

7.0 cfs July 12, Dec. 10, 1949; minimum daily, 13 cfs Aug. 28, 1949.

Remarks.--Records excellent except those for periods of ice effect or backwater from aquat-

 ic vegetation or debris, which are good. Daily discharge includes water wasted from

92.6 sq mi in basins of Sudbury River and Lake Cochituate. Water diverted above station 

for use of city of Lowell. Plow regulated by mills above station.

Rating table, water year 195O-51, except periods of ice effect 

and backwater from aqaatic vegetation or debris (gage 

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

3.7 

3.9

4.1 

4.5 204

6.0 

7.0

430

735

1,120

2,170

ubic 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

(t)

Oct.

58

135

72

95

*58

98

65

42

12T

111

121

142

162

157

195

214

T72

162

141

147

105

116

151

98

101

102

104

75

83

138

116

3,663

118

-15.0

Nov.

64

10?

114

71

114

197

*161

180

173

187

129

145

167

126

125

125

120

85

102

140

140

191

191

229

201

443

593

702

777

820

-

6,914

230

-66.2

Dec.

820

798

770

763

728

722

702

722

777

812

865

896

*S55"

872

828

763

742

728

690

650

599

539

498

491

480

b410

b400

392

380

378 415"

20,530

662

-156

Jan.

446

1ST

497

563

605

599

612

618

b59o

581

545

527

474

468

533

581

*612

657

696

709

763

b770

777

812

872

928

bSETT

b920

928

a so

b755

20,729

669

-187

Feb.

696 BOB"

850

872

912

896

936

,22O

b ,310

b ,390

,450

,450

,380

,340

1,260

*1,230

1,150

1,320

1,610

1,800

1,860

1,860

1,820

1,790

1,700

1,710

1,620

1,510

_

_

-

37,747

1,348

-342

Mar.

1,420

1,360

1,260

1,210

*1,210

1,190

1,180

1,160

1,130

1,060

1,030

1,060

1,040

1,040

1,120

1,170

1,190

1,210

1,220

1,270

1,390

1,450

1,530

1,590

1,620

1,620

1,580

1,510

1,420

1,340

1,310

39,890

1,287

-343

Apr.

1,350

1,420

1,620

1,810

1,940

1,980

1,940

1,840

*1,750

1,640

1,540

1,470

1,410

1,370

1,320

1,280

1,240

1,180

1,120

1,060

1,020

992

992

1,000

984

944

896

880

842

798

-

39,628

1,321

-358

May

763

709

683

631

593

575

*545

509

497

463

463

515

569

624

638

624

575

539

497

480

474

441

419 3Bo~

593

702

791

888

928

960

984

19,152

618

-209

June

968 52~B"

880

842

812

763

696

650

569

527

*509

474

452

430

509

563

650

735

749

756

735

702

638

599

587

545

509

474

446

392

-

19,089

636

-179

July

386

380

375

360

340

330

325

302

*320

307

288

293

300

259

243

285

257

238

2TS

303

325

380

414

357

360

331

298

329

335

370

370

10,048

324

-103

Aug.

365

340

309

277

271

276

252

295

285

246

199

2TT

242

216

213

217

244

263

311

360

4O2

430

436

441

35T

392

402

380

335

316

297

9,620

310

-96.7

Sept.

273

263

271

*275

285

280

270

225

222

244

226

210

182

173

130

148

178

151

151

140

145

108

130

159

130

132

*120

118

98 ITS'

-

5,548

185

-34.7

Adjusted for wastage and diversion (figures represent net discharge fr

Mean 

Cfsm 

In.

103 

0.330 

0.38

164 

0.526 

0.59

Calendar year 195O: 

Water year 1950-51:

507 

1.62 

1.87

482

1.54 

1.78

1,006 

3.22 

3.36

944 

3.03 

3.49

963 

3.09 

3.44

409

1.31 

1.51

Observed

Max 1,650 Min 36 Mean 380 

Max 1,980 Min 42 Mean 637

457 

1.46 

1.64

221 

0.708 

0.82

214 

0.686 

0.79

150 

0.481 

0.54

Adjusted

Mean 292 Cfsm 0.936 In. 12.68 

Mean 464 Cfsrn 1.49 In. 20.21

* Discharge measurement made on this day.

t Water wasted from 92.6 sq mi in basins of Sudbury River and Lake Cochituate, and diversion for 

use of city of Lowell, equivalent in cubic feet per second. Records furnished by water division of 

Metropolitan District Commission and by city of Lowell.

b Stage-discharge relation affected by ice.

Note.--Backwater from aquatic vegetation June 14 to Sept. 30. Backwater from debris Nov. 11 to 

Jan. 13, Jan. 23 to Mar. 1.
MERRIMACK RIVER BASIN

Merrimack River below Concord River, at Lowell, Mass.

Location.--Lat 42°38'45", long. 71°17"56", on right bank 1,100 ft downstream from Concord 

Kiver, at Lowell, Middlesex County.

Drainage area.--Total above gage, 4,635 sq mi; net above gage, 4,425 sq mi (diversions as 

neeaea from 210 sq mi for use cf Boston metropolitan district and city of Worcester).

Records available.--Jane 1923 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 5.18 ft above mean sea level, datum of 1929, 

Prior to Mar. 7, 1934, at Boott Mills 1,800 ft upstream and 700 ft above mouth of Concord River, in same gage pool and at same datum; gage-height record (furnished by proprietors of locks and canals) was indicative of flow including that of Concord River.

Average discharge.--28 years, 6,976 cfs (adjusted for wastage into Merrimack River).

Extremes.--Maximum discharge during year, 53,900 cfs Apr. 5 (gage height, 52.63 ft); minimum daily, 375 efs Oct. 1.

1923-51: Maximum discharge, 173,000 cfs Mar. 20, 1936 (gage height, 63.4 ft, from 

floodmarks); minimum daily, 199 cfs Sept. 23, 1923.

Remarks.--Records excellent except those for periods of no gage-height record and those 

below 1,000 cfs, which are good. Daily discharge includes water wasted from 210 sq mi 

in basins of Sudbury and South Branch Nashua River and Lake Cochituate. Flow regulated 

by powerplants, by Franklin Falls Reservoir since 1942, and by Squam, Newfound, Winnipesaukee, Winnisquam, and other lakes and reservoirs above station. See pages 91, 119 

for description and monthly change in contents of many of these reservoirs.

ating table, water year 1950-51 

and discharge, in cubic fee

gage height, in feet, 

per second)

41.1

41.3

41.5

42.0

42.5

303

475

698

1,520

2,740

43.0

44.0

47.0

53.0

4,270

7,820

21,400

56.5OO

Disc large, 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

(t)

Oct.

375

1,460

1,360

1,370

1,380

1,410

1,100

402

1,380

1,570

2,340

2,960

2,690

2,620

2,68O

3,860

2,950

*2,970

2,870

2,810

1,520

427

2,370

2,950

2,830

2,240

2,230

1,070

55b

2,550

2,800

62,100

2,003

23.4

Nov.

2,800

2,160

2,170

1,210

444

3,170

6,820

6,380

4,290

3,340

1,670

892

3,440

3,070

2,680

2,180

2,190

1,170

588

2,200

3,05O

4,480

4,490

4,920

3,640

7,410

24,000

32,100

25,300

19,200

-

181,454

6,048

74.3

Dec.

16.OOO

12,20O

9,120

8,750

7,940

17,500

19,300

14,700

16,500

22,000

21,200

17,500

15,000

15,200

11,300

9,380

8,020

9,120

7,900

7,210

6,160

5,870

5,7bO

5,230

5, £30

5,980

5,100

4,800

4,000

2,940

3,330

316,240

10,200

163

Jan.

3,330

5,230

5,630

6,160

7,340

7,780

6,770

7,430

6,830

6,OOO

6,6OO

6,300

5,090

4,820

6,410

*6,660

6,440

7,230

7,620

6,690

5,870

8,060

7,420

7,600

10,200

11,400

10,100

8,260

8,310

7,380

6,530

217,490

7,016

203

Feb.

6,230

7 ,210

7,150

8,180

9 , 7 10

8,580

8,910

16,600

22,600

20,800

16,500

14,300

12,800

13 , 100

13 , 100

12 , 300

11,100

13 , 500

21,300

21,400

17,400

16,400

18,900

16,bOO

14,300

13,200

11,800

12,600

_

_

-

386,770

13,810

390

Mar.

12,500

11,700

1O,90O

10,300

* 10, 800

10,900

10,900

10 , 900

11,000

10,300

9,88O

9,880

9,630

10,700

13,80O

16,700

16,300

15,300

14,800

15,300

21,400

2 1 , 900

19 , 400

17,200

17,000

17,000

15,600

15,000

14,400

14,700

18,500

434,590

14,020

449

Apr.

35,200

39,500

27,900

48,400

*52,900

45 , 100

*34,OOO

28,8OO

28,300

26,800

26,800

29,900

31,200

30,000

28,700

26,500

23,700

21,200

18,400

16,200

14,900

13,300

13,300

14,800

18,600

17,600

20,000

21,100

17,400

15,900

-

796,400

26,550

555

May

15 , 900

14,600

12,600

11,600

10 , 100

8,500

8,140

8,100

7,620

6,930

7,000

8,020

8,500

9,500

9,100

7,70O

7,300

6,600

6,000

5,000

6,400

E,600

5,000

5,300

7,800

7,700

7,000

9 , 500

14,500

15 , bOO

14,00u

277,110

8,939

217

June

11,500

9,600

8,200

7,400

6,700

7,200

6 , 600

6,300

5,300

4,200

5,800

5,080

3,970

3,260

4,420

7,040

6,230

7,040

6,660

6,180

5,700

5,350

2,650

2,460

6,030

5,980

5,500

4,500

4,070

1,820

-

172,740

5,758

186

July

2,510

4,210

4,920

3,760

3,150

3,360

3,850

3,800

4,180

3,790

2,960

3,020

4,340

6,230

4,490

5,580

4,080

*3,380

3,280

5,990

B , 100

7,380

6,220

5,180

4,890

4,620

4,030

1,980

4,450

8,100

8,020

143,850

4,C40

113

Aug.

6,360

6,160

5,980

5,110

4,120

5,500

5,040

4,190

3 , 940

3,410

2.460

2,710

4,420

4,050

3,840

3,360

4,100

5, -770

4,890

5,960

5,800

5,530

5,810

6,770

4,870

4,160

5,580

4,920

4,770

4,680

4,290

148,550

4,792

106

Sept.

3,07O

3,490

4,560

6,480

6,660

6,430

5,940

5,060

5,330

6,02O

5,340

4,760

4,640

4,190

1,770

2,910

5,170

5,030

4,730

4,470

3,990

1,830

2 , 600

4,600

3,730

3,520

4,010

3,790

2,040

2,920

-

129,080

4,303

43.0

Adjusted for wastage (figures represent net discharge from net drainage area)

Mean 

Cfsm 

In.

1,980 

0.447 

0.52

5,974 

1.3E 

1.5]

Calendar year 1950: 

Water year 195O-51:

10,040 

2.27 

2.62

6,813 

1.54 

1.77

13,420 

3.03 

3.16

13,570 

3.07 

3.54

25,990 

5.87 

6.55

8,722 

1.97 

2.27

Observed

Max 32,900 Min 327 Mean 6,127 

Max 52,900 Min 375 Mean 8,949

5,572 

1.26 

1.40

4,528 

1.02 

1.18

4,686 

1.06 

1.22

4,260 

0.963 

1.07

Adjusted

Mean 6,030 Cfsm 1.36 In. 18.52 

Mean 8,740 Cfsm 1.98 In. 26.81

* Discharge measurement made on this day.

t Water wasted from 210 sq mi in basins of Sudbury and South Branch Nashua Rivers and Lake 

Cochituate, equivalent in cubic feeb per second. Records furnished ty water division of Metropolitan 

District Commission.

Note. No gage-height record Dec. 28, 29, May 14 to June 11; discharge estimated on basis of 

recorded range in stage when available, weather records, records for other stations on Merrimack 

River, and records for Concord River telow River Meadow Brook, at Lowell. Discharge in cubic feet 

per second per square mile and runoff in inches may not represent normal flow because of regulation.
MERRIMACK RIVER BASIN 

Reservoirs in Merrimack River basin

119

Franklin Falls Reservoir on Pemigewasset River, 2 miles north of Franklin, N. H., eompleted in iy4Ll, used for flood control, has usable capacity of 6,640,000,000 cu ft. 

Records furnished by Corps of Engineers.

Newfound Lake on Newfound River, 1 2/3 miles north of Bristol, N. H., used for recreation 

ana ror storage of water for power, has usable capacity of 1,690,000,000 cu ft. Records furnished by Public Service Co. of New Hampshire.

Lake Winnlpesaukee on Winnipesaukee River (see p. 91).

Merrymeetlng Lake on Merrymeeting River, 2-J miles northeast of Alton, N. H. , used for

recreation ana for storage of water for power. Records furnished by Public Service Co. 

of FPW Hampshire.

Edward MacDowell Reservoir on Nubanusit Brook, at West Peterboro, 2 miles northwest of 

Peterboro, N. H., completed in 1950, used for flood control, has usable capacity of 

558,000,000 cu ft. Records furnished by Corps of Engineers.

Blackwater Reservoir on Blackwater River, at Swett's Mills, 1 mile south of Webster, N. H. 

completed in 1941, used for flood control, has usable capacity of 2,004,000,000 cu ft. 

Records furnished by Corps of Engineers.

Tower Hill Pond on Maple Palls Brook, 2-J- miles north of Auburn, N. H. , completed in 1939, 

used ror storage of water for municipal supply and for power, has usable capacity of 

182,000,000 cu ft. Records furnished by Manchester Water Works.

Massabeslo Lake on Cohas Brook, 2-| miles southeast of Manchester, N. H. , used for storage 

or water ror municipal supply, has usable capacity of 724,000,000 cu ft. Records furnished by Manchester Water Works.

Monthly change in reservoir contents, In millions of cubic feet, 

water year October 1950 to September 1951

Month

October ................

December. ..............

Calendar year 1950...

January . ..............

May ....................

Water year 1950-51. . .

Franklin 

Palls

0

+127

-1Z8

-22

-I

-I

Newfound 

Lake

-89

+398

+224

+497

-3O5

+86

Merrymeeting 

Lake

-8

+34

+34

+72

0

-35

+179

MacDowell 

Reservoir

+5.8

+116.6

-108.5

+20.3

+1.0

-2.8

+ .7

+7.7

Blackwater 

Reservoir

0

+46

-45

+2

-16

+2

0

0

0

Tower Hill 

Fond

-2.4

+29.8

+62.3

+93.3

+70.9

+ .8

+3.6

0

-3.6

0

-3.6

0

+169.5

Massabeslc 

Lake

-14

+80

-28

+11

-61

+311

-195

-103

-129

+26

+2

-33

+3
120 PARKER RIVER BASIN

Parker River at Byfield, Maes.

Location.--Lat 42°45'10", long. 70°56'46", on left bank 1,400 ft downstream from dam, 

nair a mile south of Byfield, Essex County, 0.7 mile upstream from Wheeler Brook, 

and 5-| miles southwest of Newburyport.

Drainage area.--21.6 sq mi.

Records available.--October 1945 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 23.46 ft above mean 

sea level, datum of 1929 (levels by Massachusetts Department of Public Works).

Average discharge.--6 years, 29.4 cfs.

Extremes. Maximum discharge during year, 184 cfs Feb. 19 (gage height, 3.54 ft); minimum daily, 0.22 cfs Oct. 4, 5.

1945-51: Maximum discharge, 352 cfs Mar. 23, 1948 (gage height, 4.81 ft); minimum 

daily, 0.17 cfs Aug. 14, 1949.

Remarks.--Records excellent except those below 3 cfs and those for periods of no gageheight record, which are good. Diurnal fluctuation caused by mill above station.

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

and discharge, in cubic feet per second) 

(Stage-discharge relation affected by ice Jan. 2Z, 

31, Feb. 16)

1.16

1.2

1.3

1.4

1.5

1.6

0.22

.41

1.25

2.45

4.4

7.3

1.8 

2.1 

2.5 

3.0 

3.5

120

179

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

Day

1

2

3

4

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

0.41

.41

1.00

722" .22

.33

.77

.69

.95

2.6

1.7

4.0

6.3

8.3

8.7

8.0

7.3

6.6

6.6

7.0

6.3

6.0

6.0

7.0

7.6

7.3

6.0

5.2

4.6

4.2

3.7

136.00

4.39

0.203

0.23

Nov.

3.3

*3.2

2.8

37?

7.8

8.0

9.0

9.3

9.0

9.0

8.7

8.3

8.3

8.0

7.3

7.0

7.0

7.0

6.6

6.3

11

12

14

14

14

30

37

52

56

33-

432.1

14.4

0.667

0.74

Dec.

*49

44

42

39

38

35

34

36

45

52

61

62

58

52

47

44

41

38

34

31

29

25

23

22

21

20

a!9 a20~

a21

a23

a25

1,130

36.5

1.69

1.95

Jan.

a26

a2l5"

31

36

39

42

39

34

34

32

30

30

*29

27

30

32

32

32

34

35

39

40

37

42

46

50

5TJ

45

42

40

35

1,119

36.1

1.67

1.93

Feb.

32313"

37

36

36

36

43

65

87

75

64

60

63

63

62

*59

56

90

T6S- 167

150

150

148

128

124

116

110

105

-

_

-

2,363

84.4

3.91

4.07

Mar.

94

85

76

70

71

73

77

79

77

71

66

62

FB" 60

97

*121

117

108

100

108

123

128

TZT

123

123

118

108

99

90

84

87

2,882

93.0

4.31

4.96

Apr.

90

90

106

129 IS"?

117

107

98

91

87

83

79

78

77

73

69

64

59

56

52

49

46

46

43

42

42

39

37

34

33

-

2,145

71.5

3.31

3.69

May

34

*32

30

27

24

22

22

21

21

19

19

22

24

25

25

24

22

21

19

19

18

17

1623"

27

32

36

42

42

4646"

817

26.4

1.22

1.41

June

44

4T

38

35

*32

30

27

24

22

19

17

15

14

15

18

21

24

27

27

27

24

22

20

19

18

15

15

14

13

12

-

690

23.0

1.06

1.19

July

12

11

10

9.7

*10

9.7

9.0

8.3

7.6

7.3

6.6

STtf

12

12

12

12

11

10

15

18

21

?2~ 23

19

16

14

12

13

13

12

12

389.2

12.6

0.583

0.67

Aug.

1414"

13

13

12

11

10

9.7

9.3

8.7

8.0

7.6

7.0

6.6

6.0

*6.3

7.0

6.6

6.3

6.2

7.0

7.0

6.6

6.6

6.3

6.0

6.0

5.7

5.4

5.2

4.9

249.0

8.03

0.372

0.43

Sept.

4.9

5.2

7.6

7.6

8.3

8.7

9^0

8.7

8.3

8.0

7.3

6.6

6.0

5.6

5.2

4.9

4.4

4.2

3.9

3.6

3.5

3.4

3.2

*3.0

2.9

2.8

2.8

2.8

2.35

2.5

-

157.25

5.24

0.243

0.27

Calendar year 1950; Max 213 Min 0.22 Mean 24.2 Cfsm 1.12 In. 15.18

Water year 1950-51; Max 167 Min 0.22 Mean 34.3 Cfsm 1.59 In. 21.54

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stage 

and records for Ipswich River near Ipswich.
IPSWH-H RIVER BA2IM

Location.--Lat 4C°34 I 10", long. 71 3 01'39", on right bank 700 ft downstream from Boston

 Street Bridge, at South Middleton, Essex County, 1.3 miles downstream from Wills 

Brook, and :J miles south of Middleton.

Drainage area.--43.4 sq mi.

Records available.--Jane 1933 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 45 ft (from topographic map).

Average discharge.--13 years, 61.0 cfs (adjusted for diversions).

Extremes.--Maximum discharge during year, 324 cfs Feb. 19 (gage height, 3.855 ft); mini-

 mum, 0.7 cfo Mov. 13, 19.

1938-51: Maximum discharge, 640 cfs Mar. 21, 1948 (gage height, 5.895 ft); minimum, 

0.4 cfs Nov. U, 1941.

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

fair. Water diverted atove station for municipal supplies of Reading, Lynn, and ijeabocly. Regulation at low flow by mill above station.

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

In cubic feet per second) 

(Stage-discharge relation affected by Ice Jan. ZZ, 21, 28, 31)

D.15 

.2 

.25 

.3

Feb. 19 to Sept. 30

0.75

1.4

2.25

3.4

table~above 1.0 ft.

0.15 

.2

.7

0.75

1.4

3.6

7.1

12

25

59

105

139

226

342

Dis-large, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

g

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

2 .15

*1.75

1.75

1.75

l.fi

1.4

1.3

1.3

1.6

6.C

8.3

6.5

2 .05

1.1

2.2

8.8

4.7

1.85

2.2

3.1

2.0

2.1

3.2

1.3

1.7

1.9

1.6

1.4

1.0

1.4

3.2

82.80

2.67

132 .3

Nov.

*1.05

1.5

3.1

.95

1.6

6.7

7.0

5.5

3.7

2 .9

1.35

1.45

1.55

1.05

1.5

1.35

1.35

.8

.75

1.95

1.65

4.8

7.4

5.5

4.2

61

88

63

67

69

-

418.65

14.0

215.3

Dec.

*69

71

64

59

58

55

42

57

73

71

74

75

75

73

69

65

61

57

49

48

38

31

28

28

30

27

26

22

20

41

46

1,60E

51.7

401.6

Jan.

44

*44

48

63

67

66

55

48

47

49

44

41

39

37

44

52

54

52

55

59

70

74

64

68

83_

82

78

72

65

59

53

1,776

57.3

78.1

Feb.

*45

63

59

52

50

50

58

128

120

102

88

90

97

106

104

94

83

164

309

280

266

269

250

214

192

174

167

155

-

_

-

3,839

137

22.8

Mar.

*141

128

124

115

118

120

117

117

115

114

108

95

96

108

160

168

174

177

172

206

252

234

230

240

232

210

200

184

168

156

168

4,947

160

330.9

Apr.

174

*164

210

258

*245

240

226

204

186

172

160

152

148

143

138

134

128

115

110

105

98 93

90

87

84

82

78

78

74

70

-

4,246

142

25.5

May

*69

64

60

57

52

49

42

39

37

36

40

45

50

54

52

50

46

42

38

33

29

26

23

35

55

75

95

105

115

120

115

1,748

56.4

283.4

June

100

90

78

*68

77

71

57

59

45

42

37

33

27

29

57

77

75

87

93

94

90

90

72

69

61

52

45

37

28

30

-

1, 870

62.3

26.9

July

30

*29

31

27

29

26

24

21

18

lp_

11

16

21

21

18

20

15

11

19

31

27

26

30

25

IB

18

11

14

24

28

21

670

21.6

33.2

Aug.

*22

22

18

12

14

20

11

10

12

11

7.3

8.3

11

7.6

8.0

7.2

15

16

10

9.8

11

11

6.4

13

11

11

3.8

6.9

6.6

4.0

5.0

339.9

11.0

31.2

Sept.

3.6

8.0

12

*22~3~.2

13

13

6.0

8.8

15

3.0

12

2.7

6.4

3.7

7.7

14

2.9

3.4

4.3

e.s

2.4

9.4

1.05

1.25

3.8

4.6

*5.2

4.9

4.9

-

208.70

5.96

26.7

Adjusted for diversions

Mean 

Cfsm 

In.

9.27 

0.214 

n.25

25.1 

0.578 

0.64

Calendar year 1950: 

Water year 1950-51:

71.7 

1.65 

1.91

61.2 

1.41 

1.63

138 

3.18 

3.32

176 

4.06 

4.68

143

3.29 

3.67

70.5 

1.62 

1.87

Observed

Max 311 Mln 0.55 Mean 35.7 

Max 309 Mln 0.75 Mean 53.5

63.7 

1.47 

1.64

23.3 

0.537 

0.62

12.5 

0.288 

0.33

8.33 

0.192 

0.21

Adjusted

Mean 43.3 Cfsm 1.11 In. 15.10 

Mean 66.4 Cfsir 1.53 In. 20.77

Discharge measurement made on this day. 

t Diversions for municipal supplies of Reading, Lynn, and Peabody, In millions of gallons ; records 

1 dlsByfleld, and Charles River at Charles River Village. 

28889U O - 54 -
122 IPSWICH RIVER BASIN

Ipswich River near Ipswich, Mass.

Location.--Lat 42°39'35", long. 70°53'39", on left bank 200 ft downstream from Willowdale 

jjam, 1-2 miles downstream from Hewlett Brook, and 4 miles upstream from Ipswich, Essex 

County.

Drainage area. 124 sq mi.

Records available.--June 1930 to September 1951. Prior to October 1930, published as "at 

wniowaaie.

Gage. Water-stage recorder and concrete control. Datum of gage is 20.63 ft above mean 

 level, datum of 1929.

Average discharge.--81 years, 187 cfs (adjusted for diversions).

Extremes. Maximum discharge during year, 835 cfs Feb. 21 (gage height, 5.05 ft); minimum, 4.0 cfs Oct. 7-10.

1930-51: Maximum discharge, 2,610 cfs Mar. 15, 1936 (gage height, 7.70 ft); minimum, 1.4 cfs Aug. 9, 1934.

Remarks. Records excellent. Diversions above station for municipal supplies of Reading, 

Lynn, Peabody, Danvers, Salem, and Beverly.

Revisions. W 781: Drainage area.

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

and discharge, in cubic feet per s^condl 

(Backwater from leaves Oct. 18 to Nov. 1)

2.5

2.6 

2.8 

5.0

3.2 

5.5

3,3 

3.6 

4.0 

4.5 

5.1

69

126

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

Day

l

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Z5

26

27

28

29

30

31

Total

Mean

(t)

Oct.

5.5

5.5

5.5

4.7

+ 4.2

4.2

4.0

4.0

4.0

8.6

32

40

37

31

23

19

18

19

17

15

13

 12

12

11

12

12

10

10

10

10

10

423.2

13.7

170.2

Nov.

*10

9.7

9.7

11

29

39

34

32

30

27

23

20

20

19

17

IB

16

16

16

15

57

74

68

61

55

1O4

134

151

151

154

~

1,420.4

47.3

362.5

Dee.

*151

146

141

134

131

122

119

122

13B

157

191

220

224

207

191

179

171

171

167

146

131

122

119

117

111

85.

89

93

98

115

126

4,434

143

781.1

Jan.

141

*154

171

194

198

201

171

140

168

179

173

165

159

151

157

165

168

179

18B

204

224

217

217

242

266

280

270

259

252

242

194

6,089

196

115.0

Feb.

*188

217

224

210

210

210

224

273

288

296

304

312

316

324

320

304

296

353

526

730

821

821

779

681

688

640

588

530

-

-

-

11,673

417

56.7

Mar.

*470

415

410

390

385

380

375

375

370

352

338

324

304

296

342

405

470

494

482

530

614

674

702

688

660

628

588

536

494

459

464

14,414

465

498.4

Apr.

476

*482

543

614

660

660

621

569

536

512

488

459

442

420

400

385

365

342

324

308

296

280

276

266

262

259

252

248

234

224

-

12,203

407

62.1

May

*217

204

198

188

179

171

162

154

146

136

128

134

138

141

141

138

131

124

117

113

104

96

82

105

136

159

188

238

262

280

291

5,006

161

502.9

June

292

284

270

*2j6

245

231

214

198

185

173

159

146

136

128

136

146

157

176

198

201

198

194

188

179

173

162

151

141

134

124

-

5,575

186

122.2

July

115

104

98

91

*82

82

79

69

62

55

47

44

62

65

62

53

49

44

55

79

85

83

74

68

61

49

41

40

50

55

55

2,058

66.4

90.7

Aug.

56

53

48

42

34

32

33

32

32

31

31

24

23

24

22

*21

33

42

36

36

30

30

29

24

23

24

24

21

18

19

17

944

30.5

74.9

Sept

17

24

33

40

12

35

31

30

24

22

24

22

20

20

18

22

21

22

20

16

14

14

15

14

*15

13

11

12

13

15

639

21.3

68.4

Adjusted for diversions

Mean

Cfsm 

In.

22.4

0.1B1 

0.21

66.0 

0.532 

0.59

Calendar year 1950: 

Water year 1950-51:

182 

1.47 

1.69

202 

1.63 

1.88

420 

3.39 

3.53

490 

3.95 

4.55

410 

3.31 

3.69

187 

1.51 

1.73

Observed

Max 890 Min 2.4 Mean 114 

Max 821 Min 4.0 Mean 178

192 

1.55 

1.73

70.9 

0.572 

0.66

34.2 

0.276 

0.32

24.8 

0.200 

0.22

Adjusted

Mean 135 Cfsm 1.09 In. 14,77 

Mean 190 Cfarr 1.53 In. 20.80

* Discharge measurement made on this day.

t Diversions for municipal supplies of Reading, Lynn, Peabody, Danv 

nillions of gallons; records furnished by various municipalities.

and Beverly, in
MYSTIC RIVER BASIN 

Aberjona River at Winchester, Mass.

123

Location.--Lat 42°26'50", long. V1 0 08'22", on left bank at Winchester, Middlesex County, 

U.b mile upstream from head of Mystic Lakes.

Drainage area.--23.3 sq mi (excludes 1.4 sq mi drained by Winchester Reservoirs). 

Records available.--April 1939 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is at mean sea level, 

3atum of 1929.

Average discharge.--12 years, 22.6 cfs.

Extremes.--Maximum discharge during year, 233 cfs Feb. 19 (gage height, 12.105 ft); no 

flow for part of Oct. 10, 12, caused by pumpage from gage pool; minimum daily, 0.25 

cfs Oct. 10.

1939-51: Maximum discharge, 358 cfs Mar. 20, 1948 (gage height, 12.44 ft); maximum 

gage height, 13.05 ft Mar. 1, 1945 (backwater from construction); no flow for part of 

Oct. 10, 12, 1950; minimum daily discharge, that of Oct. 10, 1950.

Remarks.--Records good. Plow a'ffected by diversions for industrial use and for municipal 

supply of Woburn and Winchester, and by wastage and leakage from Winchester Reservoirs. 

Occasional regulation by mills above station.

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

and discharge, in cubic feet per second) 

(Stage-discharge relation affected by ice Jan. 8-11)

10.15 0.2 10.5 4.6

10.2 .4 10.7 11

10.25 .7 10.9 22

10.3 1.1 11.2 47

10.35 1.7 11.5 89

10.4 2.5 12.0 203

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

.'0

Total

Mean

Cfsm

In.

Oct.

0.65

.65

.7

.55

.5

.45

.4

.5

.65

.25

.4

.3

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.45

.45

.45

.45

.45

.4

.6

JL

15.65

0.505

-

-

Nov.

0.7

.8

.65

.65

1.55

.45

.45

.45

.7

1.25

.95

.45

.45

.4

TT

*.45

.45

.45

.45

.65

5.5

3.3

8.0

5.8

5.9

6755-

40

31

24

-

258.25

8.61

-

-

Dec.

20

16

14

16

18

17

16

29

38

36

33

29

25

21

18

16

18

*18

18

16

13

12

12

15

16

13

11

9.2

38

45

46

662.2

21.4

-

-

Jan.

38

31

31

35

36

32

29

25

22

19

18

2ff

19

19

40

*42

42

38

37

38

44

40

33

47

58

55

42

35

33

29

24

1,051

33.9

-

-

Feb.

30

TF

60

50

41

36

81

165

111

73

55

51

48

55

*52

45

43

165

192

ISTT

95

99

100

77

69

62

57

52

_

_

-

2,172

77.6

-

-

Mar.

53

49

49

53

58

59

55

50

*45

42

42

42

41

5F

103

97

80

76

66

1O9

US- 133

102

109

98

83

73

70

59

57

74

2,208

71.2

-

-

Apr.

81

74

140

144

T2TT

120

93

80

72

68

77

*84

83

75

66

55

52

48

45

44

42

38

40

39

38

38

37

34

29

17

-

1,981

66.0

-

-

May

21

20

18

12

12

8.5

13

10

10

10

*21

30

31

27

19

16

13

11

13

9.6

9.8

9.0

8.6

63

76

64

52

60

51

46

42

806.5

26.0

-

-

June

32

26

22

22

26

22

19

*16

13

11

9.8

8.2

7.0 13 

56

85

W

62

46

34

27

21

18

18

18

15

13

11

10

10

-

770.0

25.7

-

-

July

11

11

9.4

8.0

12

9.6

9.2

7.8

6.4

4.9

3.7

6.3

8.0

5.6

5.3

4.4

4.0

3.3 *l5 

24

2920-

14

9.4

6.4

4.7

3.4

13

11

14

12

305.8

9.86

-

-

Aug.

8.8

6.1

5.0

4.6

3.5

2.9

2.6

3.3

2.7

2.8

2.7

2.6

2.2

1.85 5-TE12

23

T.a

8.8

9.8

7.6

6.4

5.6

4.6

3.5

3.0

*5.7

3.2

2.3

2.0

1.95

166.50

5.37

-

-

Sept.

1.35

5.5

7.3

13

IT

7.3

6.0

3.0

2.1

1.65

1.5

1.55

1.5

1.35

2.9

6.2

1.65

*1.25

1.25

.95

1.1

1.15

1.55

1.05

1.3

1.05

1.0

.95

.85

17TT-

-

89.30

2.98

-

-

Calendar year 1950: Max 210 Min 0.25 Mean 16.4 cfsm - In. -

Water year 1950-51: Max 192 Min 0.25 Mean 28.7 cfsm - In. -

Peak discharge (base. 170 c fs . --Feb. 7 9:30 

ft); Apr. 3 (9 a.m.) 171 cfs (11.88 ft).

;harge measurement made on this day
124 CHARLES RIVER BASIN

Charles River at Charles River Village, Mass.

Location.--Lat 42°15'23", long. 71°15'42", on right bank 0.25 mile downstream from high- 

 way bridge at Charles River Village, Norfolk County, 0.8 mile downstream from Noanet 

Brook, and 1.3 miles northeast of Dover.

Drainage area.--184 sq mi.

Records available.--October 1937 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 

sea level, datum of 1929.

J.76 ft above mean

Average discharge.--14 years, 272 (adjusted for diversions).

Extremes.--Maximum discharge during year, 980 cfs Apr. 7 (gage height, 3.67 ft); minimum,

1937-51: Maximum discharge, 3,110 cfs July 27, 1938 (gage height, 9.00 ft); minimum, 1.9 cfs Oct. 14, 1941 (gage height, 0.25 ft).

Maximum discharge known, 3,170 cfs in March 1936, by compuatation of flow over dam 

at site a quarter of a mile above station.

Remarks. Records excellent. Diversion above station for municipal supply of Wellesley 

and Needham, and during August and September 1951 from Sudbury River basin to Charles 

River.

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

and discharge, In cubic feet per second) 

(Stage-discharge relation affected by Ice Jan. 9, 51, Feb. 1, 8, 9)

121

417

1,100

Disc large, in cubic feet per second, water year October 195o to September 1951

Day

1

2

3

4

5

e

7

8

9

10

11

12

13

14

15

Ib

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

TtT

Oct.

25

26

*24

26

38

38

36

28

26

40

46

76

91

95

85

80

74

66

58

54

48

46

48

44

46

44

48

46

46

50

46

1,544

49.8 

+77.7

Nov.

*39

38

37

38

77

101

134

134

128

114

98

85

77

68

63

66

66

60

63

74

147

207

224

207

2O4

397

426

476

*510

_523_

-

4,881

163 

+74.6

Dec.

510

479

440

406

376

345

329

340

376

390

417

426

426

417

395

368

345

314

280

241

£21

204

187

184

187

147

184

170

177

224

268

9,773

315 

+79.4

Jan.

286

*297

305

342

353

350

347

2^6

285

283

266

254

241

231

283

353

379

406

426

434

449

432

395

420

455

470

476

461

455

423

320

11,163

360 

+67.2

Feb.

*C60

455

458

452

452

440

487

690

670

733

76B

772

752

733

677

626

574

643

670

716

748

801

801

784

756

730

698

656

_

-

-

18,002

643 

+62.2

Mar.

*610

574

533

517

513

498

492

485

467

443

420

409

393

404

467

485

510

533

533

581

587

623

646

677

680

663

639

610

571

539

571

16,673

538 

+69.6

Apr.

*55B

574

739

822

896

955

972

930

871

812

772

740

702

667

633

590

565

533

504

464

432

404

398

382

376

374

366

360

347

*524

-

18,062

602 

+72.6

May

291

260

238

221

204

197

197

194

184

177

194

254

283

291

283

266

244

214

184

164

161

161

161

298

417

488

529

593

593

597

577

9,115

294 

+82.7

June

*545

498

440

385

537

294

263

231

204

187

177

170

164

170

228

277

297

300

286

260

234

207

190

167

157

138

124

114

111

*1QB

-

7,263

242 

+ 93.0

July

108

104

98

88

98

98

95

88

82

74

74

68

60

58

58

56

74

63

78

91

95

98

95

88

82

74

63

68

66

68

66

2,476

79.9 

+100.7

Aug.

*65

60

52

52

48

46

44

44

44

40

44

42

42

46

68

88

147

161

164

174

201

201

201

197

187

164

151

138

131

114

*98

3,254

105 

-118.2

Sept.

85

104

114

121

114

111

111

108

104

98

91

85

80

71

71

77

74

74

71

68

71

66

66

68

74

74

74

68

58

58

-

2,509

83.6 

-222.4

Adjusted for diversion

Mean 

Cfsm 

In.

53.7 

0.292 

0.34

167

0.908 

1.01

Calendar year 1950 : 

Water year 1950-51 :

319 

1.73 

2.00

363 

1.97 

2.28

646 

3.51 

3.66

541

2.94 

3.39

606 

3.29 

3.67

298 

1.62 

1.87

Observed

Max 854 Min 19 Mean 203 

Max 972 Mln 24 Mean 287

247

1.34 

1.50

84.9 

0.461 

0.53

99.1 

0.539 

0.62

72.4

0.392 

0.44

Adjusted

Mean 207 Cfsm 1.12 In. 15.24 

Mean 289 Cfsm 1.57 In. 21.31

* Discharge measurement made on this day.

t Diversions for municipal supply of Welle 

to Charles River, in millions of gallons. R 

Metropolitan District Commission.

ley and Needham, and diversion from Sudbury River basin 

cords furnished by municipalities and Water Division of
CHARLES RIVER BASIN 

Mother Brook at Dedham, Mass.

125

Location. Lat 42°15'19", long. 71°09'5S", on right bank at upstream side of East Street 

Bridge, at Dedham, Norfolk County, 0.4 mile downstream from point of diversion from 

Charles River.

Records available.--October 1931 to September 1951.

Gage.--Float gage read twice daily. Datum of gage is U.03 ft below mean sea level, datum 

of 1929. Prior to Dee. 8, 1931, water-stage recorder at same site and datum.

Average discharge.--3Q years, 81.6 cfs.

Extremes.--Maximum discharge during year, 247 cfs Apr. 8, 9 (gage height, 38.57 ft, from 

graph based on gage readings); no flow Oct. 1-5.

1931-51: Maximum discharge, 909 cfs July 28, 29, 1938 (gage height, 91.84 ft, from 

graph based on gage readings); no flow Sept. 12 to Nov. 1, 1941, several days August 

to October 1943, August, September 1944, July, August, October 1949, and August, September, October 1950.

Remarks.--Records good. Mother Brook is a diversion from Charles River to Neponset River 

through Dedham and Hyde Park.

Rating table, water

and discharg 

(Backwater froi

84.46 0

84.6 .2

84.7 .4

84.8 .9

ear 1950-51 (gage height, In 

, In cutlc feet per second) 

leaves or debris Oct. 1-13)

2.8 

4.3 

6.3

86.0 36

87.0 104

88.0 189

88.6 250

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

Day

1

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Of sm

In.

Oct.

0

0

0

0

0

.1

.1

.1

.1

.3

1.1

1.7

*6.6

9.2

9.7

9.4

8.4

7.4

5.9

5.1

3.7

2.9

2.4

2.4

2.2

2.3

1.7

1.8

1.9

2.0

2.1

90. e

2.92

_

-

Nov.

1.9

1.5

1.4

1.2

3TT

*8.5

13

17

19

19

16

13

11

9.4

7.4

6.3

6.3

6.1

5.5

5.3

£2

32

39

42

42

71

94

105

*115

122

-

856.5

28.6

_

-

Dec.

129

129

126

121

120

111

103

98

105

106

110

112

114

113

112

110

104

98

88

79

70

63

56

54

52

46

40

39

4tT

56

63

2,767

89.3

_

-

Jan.

70

72

76

82

89

90

92

89

84

80

75

73

71

66

*7T

89

95

101

108

113

118

121

115

120

128

131

133

T3T

131

128

116

3,062

98.8

_

-

Feb.

102

118

129

130

130

129

132

168

180

185

194

201

205

207

*202

191

182

188

193

195

198

208

216

217 2lB~

209

205

199

_

_

-

5,028

180

_

-

Mar.

190

181

172

167

163

156

151

149

145

142

137

132

127

125 133"

138

142

147

*148

159

169

175

179

185

191

191

187

182

176

169

171

4,979

161

_

-

Apr.

169

167

190

212

223

235

243

246

244

235

230

227

*218

209

197

189

180

169

159

154

143

133

132

124

117

117

113

108

105

103

-

5,291

176

_

-

May

96

90

82

72

65

57

56

52

48

*46

46

56

64

70

72

71

69

66

54

48

42

38

36

5F

86

107

121

137

148

155

156

2,362

76.2

_

-

June

155 149"

143

133

123

110

99

86

75

66

58

50

44

42

*56

69

75

80

80

78

72

67

59

54

49

41

34

28

24

23

-

2,222

74.1

_

-

July

22

22

20

18

18

19

19

17

15

13

12

11

10

8.1

7.4

6.8

9T2

9.2

10

15

15

15

*15

14

13

12

10

10

10

10

9.4

415.1

13.4

-

-

Aug.

9.2

9.2

7.2

6.8

5.3

4.7

3.7

3.5

3.7

3.5

3.2

2.8

2.7

2.3

4TT

10

20

27

31

32

43

47

48

3F

48

46

41

36

31

*26

Jl

628.2

20.3

-

-

Sept.

19

20

24SB22

19

20

18

17

16

14

13

11

9.4

8.1

10

*11

11

11

9.7

9.4

9.2

8.9

9.7

9.4

10

9.4

9 .7

8.9

7.7

-

398.5

13.3

-

-

Calendar year 1950: Max 254 MlQ 0 Mean 53.6 Cfsm - In.

Water year 1950-51: Max 246 MlQ 0 Mean 77.0 Cfsm - In. -

Discharge measurement made on this day.
126 CHARLES RIVER BASIN

Charles River at Waltham, Mass.

Location. --La t 42°22'20" ) long. 71°14'03", on right bank 800 ft downstream from Moody

street Bridge in Waltham, Middlesex County, and a third of a mile upstream from

Beaver Brook. 

Drainage area 227 sq mi (excludes 23.6 sq mi drained by Stony Brook from which flow is

diverted ror municipal supply of Cambridge). 

Records available. --October 1903 to October 1909 (figures of average weekly discharge,

equivalent to records of unadjusted discharge at present site), August 1931 to SeptemJuly 10, 1904, to Oct. 2, 1909, at dam 0.7 mile downstream at different daturas; discharge computed from flow over dam and through wheels and gates of Boston Manufacturing Co. and Waltham Bleachery, respectively. 

Average discharge. --20 years (1931-51), 350 cfs (adjusted for diversions, wastage, and

leakage) . 

Extremes . --Maximum discharge during year, 933 cfs Apr. 7 (gage height, 3.10 ft); minimum,

1.3 cfs Oct. 11, 12, 15; minimum daily, 12 cfs Oct. 4, Nov. 2.

1931-51: Maximum discharge, 2,540 cfs Mar. 19, 1936 (gage height, 4.79 ft); minimum, 0.1 cfs Oct. 1, 12, 1943; minimum daily, 0.2 cfs Oct. 4, 1943. 

--

Sudbury River basin to Charles River, diversion to Mother Brook, and diversions for 

municipal supply of Wellesley, Needham, Dedham, Brookline, Newton, and Waltham (prior 

to 1951), all above station. Low flow completely regulated by Boston Edison Co. powe 

plant above station. 

Revisions (water years). W 781: 1933(M). W 851: Drainage area. W 971: 1942.

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

discharge, in cubic feet per second)

(Backwater from grass or debris Apr. 3-12, June 29

to Aug. 26)

Oct. 1 to Apr. 3 Apr. 4 to Sept. 3O

0.5 

.6

Discharge, in

1.2 

1.6 

2.0 

2.6

et per second,

106

218

378

715

1.5 

2.0 

3.0

185

375

940

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

(t)

Oct.

16

16

17

12

2T

31

24

24

23

64

60

26

77

83

3T

36

76

50

*65

54

30

35

59

43

46

38

46

34

21

23

62

1,249

40.3

451.7

Nov.

41

12

BT

47

30

110

78

97

77

98

73

56

64

63

*84

51

60

41

37

52

110

139

139

139

158

433

59T

319

338

356

-

3,755

125

929.6

Dec.

369

56T

360

369

369

346

*325

325

329

317

333

346

338

333

333

325

317

308

292

142

284

204

185

192

225

164

147

155

170

262

208

8,736

282

2,207.0

Jan.

232

SBTT

250

258

262

273

277

314

267

254

254

250

243

232

250

*269

323

297

316

351

346

346

346

356

369

374

374

374

378

37¥

351

9,410

304

2,378.9

Feb.

342 3EO"

364

374

374

369

413

583

463

513

535

571

595

637

607

571

553

619

*625

625

637

679

685 B"6T

655

673

643

637

_

_

-

15,369

549

3,584.2

Mar.

607

565

535

518

524

507

479

432

404

407

402

402

383 555"

402

407

407

417

*427

541

518

553

595

607

607

619 BT9-

607

589

583

601

15,653

505

3,066.5

Apr.

540

6O1

685

776

782

788

828

73T

788

764

752

*752

728

692

662

620

590

520

510

490

465

435

430

416

388

354

341

332

332

320

-

17,475

582

1,686.8

May

308

292

254

232

222

211

205

16O

167

221

*168

224

167

235

243

232

225

218

202

179

167

167

131

53T

311

328

341

418

455

470

495

7,868

254

1,678.6

June

467 54"0~

420

411

398

362

292

*271

258

247

208

195

192

162

225

256

243

273

25O

243

243

265

240

152

158

161

155

147

127

115

-

7,576

253

1,648.8

July

118

118

113

108

113

111

104

47

116

81

42

1O1

122

42

33

89

101

20

82

*144

105

32

1O4

104

25

87

105

18

9T

78

50

2,608

84.1

590.9

Aug.

64

49

94

39

22

74

38

20

32

67

58

15

BT

36

36

129

200

138

132

162

192

192

185

T92~ 211

167

170

*164

145

122

98

3,304

107

386.9

Sept.

52

83

198 TT5"

111

111

108

57

66

121

118

56

88

74

43

70

*115

78

4250-

102

51

49

61

75

85

46

46

53

55

-

2,389

79.6

290.3

Adjusted for diversions, wastage, and leakage

Mean 

Cf sin

62.8 

0.277 

0.32

173 

0.762 

0.85

Calendar year 195O: 

Water year 195O-51:

392 

1.73 

1.99

422 

1.86 

2.14

747 

3.29 

3.43

658 

2.90 

3.34

670 

2.95 

3.29

338 

1.49

1.71

Observed

Max 729 Min 1.6 Mean 179 

Max 828 Min 12 Mean 261

338 

1.49

1.66

114 

0.502 

0.58

126 

0.555 

0.64

94.6 

0.417 

0.46

Adjusted

Mean 252 Cfsm 1.11 In. 15.10 

Mean 341 Cfsm 1.5O In. 20.41

* Discharge measurement made on this day.

t Diversions to Mother Brook and for municipal supply of Wellesley, Needham, Dedham, Brookline, 

and Newton, wastage from Stony Brook Reservoir, wastage and leakage from Norumbega Reservoir, and 

diversion from Lake Cochituate and Sudbury River basin to Charles River, In millions of gallons. 

Records furnished by Water Division of Metropolitan District Commission and by municipalities.
NEPONSET RIVER BASIN 127

Neponset River at Norwood, Mass.

Location.--Lat 42°10'39", long. 71°12 I 05", on left bank 200 ft upstream from Pleasant 

Street Bridge, 200 ft downstream from New York, New Haven & Hartford Railroad bridge, 

0.45 mile downstream from Hawes Brook, and 0.5 mile south of Norwood, Norfolk County.

Drainage area.--35.2 sq mi.

Records available. November 1939 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 44.04 ft above mean sea level, unadjusted.

Average discharge. 12 years, 42.4 cfs.

Extremes.--Maximum discharge during year, 255 cfs Apr. 3 (gage height, 9.64 ft); minimum 

 daily, 6.8 cfs Sept. 30.

1939-51: Maximum discharge, 414 cfs Dec. 7, 1945 (gage height, 10.38 ft); minimum 

daily, 2.3 cfs Oct. 23, 1949.

Maximum stage known, 11.05 ft July 24, 1938, from floodmarks.

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

Flow regulated by mills and reservoirs above station. Several diversions above station for municipal and industrial use.

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

discharge, in cubic feet per second)

1 to Nov. 25 Nov. 26 to Sept. 3O

6.7

6.8 

7.0

4.8 

8.5

7.5 

8.0 6.8

7.0 

7.5

4.8 

8.5

8.0 95

9.0 179

9.5 235

Discharge, in cubie 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 SDl

In.

Oct.

a7.0

a772~

a9.5

a8.5

a8.0

a7.0

a8.5

a7.0

a7.5

a!4

a!8

a 16

*10

13

9.9

9.4

12

14

13

10

12

10

10

13

12

10

11

12

8.9

8.8

11

328.2

10.6

-

-

Nov.

9.8

9.4

9.8

13

26

21

10

16

16

11

12

11

12

12

*9.4

9.4

9.8

10

7.2

11

94

86

71

57

62

141 139~

112

*90

73

-

1,170.8

39.0

-

-

Dec.

54

51

48

49

52

49

46

54

75

81

73

68

58

50

46

46

41

37

30

30

23

19

2TT

24

33

27

29

24

38

62

73

1,410

45.5

-

-

Jan.

68

50

48

50

52

50

51

47

46

35

aJO' 32

a42

a40

*£8

87

81

72

68

66

80

58

52

82

102

~~ss 104

72

69

£3

57

i , & : 9

61.9

-

-

Feb.

70 *lTT

116

101

86

77

95

196

IFF

123

101

31

90

96

90

82

72

116

130

121

110

117

120

114

105

98

93

84

_

-

-

2,979

106

-

-

Mar.

*80

75

72

73

86

84

82

76

71

66

61

62

5976"

102

105

95

90

81

115

133 133"

124

121

116

106

90

82

78

78

115

2,787

89.9

-

-

Apr.

124

118

205

234

TBT

148

133

120

113

105

102

1O6

*106

101

93

86

90

82

69

66

72

59

5272"

72

66

64

59

58

*54

-

3,013

100

-

-

May

52

37

35

33

34

33

39

30

32

2[5

37

54

47

51

43

33

27

26

30

25

33

27

33

95

140

144

TZT

126

110

94

81

1,727

55.7

-

-

June

*69

61

74

ST

54

49

47

40

29

26

26

16

19

29

49

55

47

50

47

35

22

25

20

24

21

20

17

15

13

13

-

1,073

35.8

-

-

July

14

13

*15

12

14

13

12

10

11

11

10

12

10

11

7.6

8.3

12

11

19

32.

13

14

13

12

10

9.4

8.9

8.7

8.1

9.6

12

376.6

12.1

-

-

Aug.

12

12

12

8.4

7.5

9.6

12

12

12

12

8.8

7.3 14" 

12

14

22

54

*STT

24

28

33

23

18

15

15

15

12

13

*12

12

13

504.6

16.3

-

-

Sept.

8.6

16

20

17

20

16

15

11

8.3

12

17

12

11

11

*18

21

IT

11

11

11

11

7.5

14

9.9

16

15

12

12

8.9

6.8

-

397.0

13.2

-

-

Calendar year 1950: Max 165 Min 3.4 Mean 33.2 Cfam - In. -

Water year 1950-51: Max 234 Min 6.8 Mean 48.4 Cfsra - In.

Peak discharge (base, 160 cfs). --Nov. 26 (12:15 '.) 188 cfs (9.09 ft): Jan. 21 (10:30 a.m.) 168 

Mar. 25 (9:30 a.m.) 186 cfs ( 

to 1 a.m.) 160 cfs (8.81 ft).

.. . ..

4 p.m.) 209 cfs (9,29 ft); Mar. 25 (9:30 a.m.) 186 cfs (9.07 ft); Apr.. 3 

9.64 ft); May

cfs (8.89 i'tl; Feb.

(5 to 6 p.m.) 255 cfs (9.64 ft); May 25-26 (11:30 p.

* Discharge measurement made on this day .

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for stations on nearby streams including Wading River near Norton.
128 WESTPORT RIVER BASIN

Drainage area.--8.6 sq mi, approximately.

Records available.--October 1940 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 15 ft (from topographic map).

Average discharge.--H years, 12.4 cfs.

Extremes.--Maximum discharge during year, 90 cfs Apr. 4 (gage height, 4.395 ft); maximum 

gage neight, 4.445 ft Feb. 9 (backwater from i:e); minimum discharge, 0.03 cfs Oct. 3,4.

1940-51: Maximum discharge, 241 cfs Aug. 8, 1946 (gage height, 5.72 ft); minimum, 

0.03 cfs Sept. 23, 24, Oct. 3,4, 1950.

Remarks.--Records good.

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

and discharge, In cubic feet per second) 

(Stage-discharge relation affected by Ice Feb. 8, 9)

2.975 0.03 3.10 0.53 3.4 8.0

3.00 .07 3.15 1.06 3.6 18

3.02 .12 3.2 1.85 4.0 48

3.06 .27 3.3 4.4 4.5 102

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.

Oct.

0.05

.05

.05

.03

*7C6~

.09

.10

.12

.18

.17

.15

.20 TIB"

.14

. 12

.10

.09

.08

.09

.09

.09

.09

.13

.15

.13

.12

.12

.12

.12

.12

*.12

3.45

0.111

0.013

0 .01

Nov.

0.15T22~

'.50

.41

1.6

1.7

1.35

1.13

1 .00

.94

.88

.82

.71

.66

.61

.61

.61

.80

1.00

1.06

2.9

2.6

1.85

1.75

2.05

19

TT

18

14

*11

-

106.71

3,56

0.414

0,46

Dec.

9.2

7.6

7.0

6.6

8.4

7.6

6.8

11

24

24

22

18

15

12

10

9.4

8.6

8.0

7.2

6.2

5.6

5.6

5.8

6.0

6.0

5.3

4.8

4.4

9TT

23

§1

331.8

10.7

1.24

1.43

Jan.

24

19

16

14

13

11

12

*17

16

14

12

14

12

12

26

35

3T

23

18

15

14

12

10TB"

30

33

26

19

17

15

*12

558

18.0

2.09

2.41

Feb.

18

39

42

26

21

20

22

5250"

30

22

18

20

19

18

15

14SO"

45

40

28

27

28

24

20

18

17

*15

_

_

-

738

26 .4

3.07

3.19

Mar.

14

14

14

15

19

20

18

16

15

13

1212"

12

14

20

22

20

18

15

34

62

5T

40

32

30

26

22

18

16

15

28

677

21.8

2.53

2.93

Apr.

40

*34

58

8352~

33

24

20

18

17

17

16

17

16

15

14

14

14

13

12

12

10

IT

19

18

16

14

12

11

10

-

663

22.1

2.57

2.87

May

*9.3

8.8

8.2

7.8

7.4

7.0

6.8

6.6

6.0

6.0

8.2

14

15

14

11

9.6

8.4

7.4

6.8

6.2

6.0

5.8

5.6 14 

19

24

20

30

2T

20

*16

361.9

11.7

1.36

1.57

June

1210"

8.4

7.4

6.8

6.0

5.2

4.6

4.0

3.7

3.3

2.9

2.6

2.9

4.8

6.2

6.0

5.3

4.4

3.6

3.0

2.7

2.6

3.4

2.6

2.0

1.7

1.6

1.35 T73"5"

-

132.40

4.41

0.513

0.57

July

1.5 *T75~

i.'ss

1.20

1.13

1.00

.94

.82

.71

.66

.57

.57

.49

.42

.32

.30 173~

1.13

.82

.71

.57

.49

.71

.66

.53

.42

.35

.53

.ei

*.51

.45

23.27

0.751

0.087

0.10

Aug.

0.49

.45

.38

.32

.30

.24

.20 76"F

.82

7ST

.53

.45

.61

.53

.45

.45

.57

.57

.45

.42

.71

.82

.66

.53

.45

.35

.32

.27

.24

.22

.20

14.34

0.463

0.054

0.06

Sept.

0.24

 T2TT

!l8

.16

.15

.16

.20

.16

.13

*.12

.13

.13

.12

.12

.12

.12

.12

.12

.08

.07

.08

.08

.09

.08

.08

.08

.07

.07

.07

.08

-

3.61

0.120

0.014

0.02

Calendar year 1950: Max 94 Mln 0.03 Mean 8.79 Cfsm 1.02 In. 13.87

Water year 1950-51: Max 83 Mln 0.03 Mean 9.90 Cfsm 1.15 In. 15.62

Peak discharge (base, 120 cfs).--No peak abc 

* Discharge measurement made on this day.
TAUNTON RIVER BASIN 129 

Taunton River at State Farm, Mass.

Location. Lat 41°56'05", long. 70°57'18", on right bank at State Farm, Plymouth County,

 i mile upstream from Saw Mill Brook and 3-| miles northwest of Middleboro.

Drainage area.--S6Q sq mi.

Kecords available.--October 1929 to September 1951.

uage.--water-stage recorder. Datum of gage is 9.61 ft above mean sea level, datum of

 1929. Prior to Oct. 1, 1331, inverted staff gage at site 40 ft downstream with cero of 

gage at 10.02 ft on present gage. Oct. 1, 1931, to June 8, 1934, staff gage and June 9, 

1934, to Oct. 12, 1939, water-stage recorder at site 40 ft downstream at present datum.

Average discharge. --22 y<=ars, 44C cfs (adjusted for diversions).

Extremes.--Maximum discharge during year, 1,580 cfs Feb. 10, Apr. 4; maximum gage height,

 b.H5 ft Feb. 10; minimum discharge, 40 cfs July 14; minimum daily, 41 cfs Sept. 30.

1929-51: Maximum discharge, 3,080 cfs Dec. 8, 1945 (gage height, 11.57 ft); minimum, 

8 cfs Sept. 10, 1944; minimum daily, 9 cfs Sept. 9-12, 1944.

Revisions. The maximum discharge for the water year 1931 has been revised to 2,430 

efs June 12 [gage height, 1.12 ft), superseding figure published in Water-Supply Paper 

711. 

Remarks.--Records excellent. Water diverted above station from Nemasket River for munici-

 pal supply of Taunton and New Bedford; water diverted from Silver Lake by pumpage into 

Taunton River basin above station for municipal supply of Brockton and several towns. 

Flow regulated by reservoirs and small powerplants above station.

Revisions (water years).--W 756: Drainage area. W781: 1934. W 801: 1933(M). W 1051:

 lyyy . Revised figures of discharge, in cubic feet per second, for the high-water period 

in the water year 1931, superseding those published in Water-Supply Paper 711 are given 

herewith:

1,350

2,250

2,390

2,210

1,830

1,490

Month

Jun<=

Water year 1930-31. . . 

Calendar year 1931...

Maximum

2,390 

2,390

Dbserved

Minimum

14 

57

Mean

827

443

450

Diversions 

(millions

gallonsjt

+3,063.4 

+3,091.4

Mean

839

456

463

Adjusted

Per square 

mile

3.23

1.75 

1.78

Runoff in 

inches

3.60

23.82 

24.20

t Diversions from Nemasket River for municipal supply of Taunton and Hew Bedford and from 

Silver Lake into Taunton River basin for municipal supply of Brockton and several tjwns.

Disc arge, in cubic feet per ond, water year October 1950 to September 1951

Day

1

2

3

4

5

e

7

8

3

10

11

12

13

14

15

16

17

18

19

0

1

2

3

4

5

6

7

8

29

30

31

Total

Mean

(t)

Oct.

60

50

46

47

*51

46

49

52

56

65

90

92

116

T<35

103

103

90

83

81

80

70

75

90

90

33

80

81

80

77

92

88

2,374

76.6

530 . 3

Nov.

80

W

81

88

215

*284

264

249

223

198

180

154

142

126

112

110

108

101

106

116

224

385

363

354

346

742

1,260

1,280

1 . 140

*990

-

10,101

337

504 . 9

Dec .

830

"BTis

545

495

481

448

416

407

710

798

803

820

754

638

515

515

439

398

350

313

280

241

230

223

257

249

230

212

244

595

632

14,723

475

496.1

Jan .

693

638

580

575

565

500

467

540

500

457

416

154

457

420

588

908

869

*781

726

666

610

560

476

554

1,030

1,090 97ft

B20

726

693

560

19,869

641

454.6

Feb.

671

1,260

1,430

1,180

1 , 020

924

913

1,440

1,400

1,480

1,100

913

836

820

781

*682

605

7L>4

970

985

324

891

924

847

748

726

676

632

_

_

-

26,482

946

427.0

Mar.

585

565

540

525

580

*590

565

550

530

495

467

455

505

520

798

858

803

754

693

776

1 , luu

1.150

T7T4U

1,100

1.U20

913

808

742

688

649

776

22,280

719

431.4

Apr.

918

896

1,120

1 , 540

1,520

1,380

1,200

1,050

935

847

781

*798

792

748

698

649

632

600

560

540

495

471

530

627

595

575

535

457

402

434

-

23,325

778

457 .9

May

411

393

371

350

329

309

296

276

245

230

238

321

354

*338

296

300

276

249

234

223

226

238

201

mz

770

88(3

886

950 "940

62u

732

13,066

421

489.5

June

649

555

471

407

354

321

296

272

245

219

208

187

170

*161

212

264

300

342

323

288

249

219

190

167

164

148

134

T39

155

153

-

7,96«

266

492.7

July

116

173

TIT

78

126

121

95

85

62

65

34

72

69

47

57

7C

57

73

68

*102

85

70

83

80

64

60

55

71

30

90

68

2,547

32.2

491.9

Aug.

69

67

60

60

56

54

51

56

51

*56

63

56

46

5?

66

88

114

136

93

85

178

205 ~85

31

112

99

88

83

92

83

74

2,559

82.5

549.3

Sept.

68

72

95

95

88

80

95

93

81

*77

70

65

64

58

60

62

59

56

59

57

47

48

59

86

72

60

54

57

45

41

-

2,023

67.4

532.4

Adjusted f jr di-s

Mean 

Cf stn 

In.

103 

0.396 

0.46

363 

1.40 

1.56

Calendar year 1950: 

Water year 1950-51 :

500 

1.92 

2.22

664 

2.55 

2.94

969 

3.73

3.88

743 

2.86 

3.29

801 

3.08 

2.44

446 

1.72

1.98

291

i!as

107 

0.412 

0.47

110 

0.423 

0.49

94.9 

0.365 

0 . 41

Observed 1 Adjusted

Max 1,280 Min 33 Mean 270 Mean 294 Cfsm 1.13 In. 15.37 

Max 1,540 Mln 41 Mean 4O4 Mean 429 Cfsrr. 1.65 In. 22.39

* Discharge measurement made on this day.

t Diversions from Nemasket River for municipal supply of Taunton and Hew Bedford and from £ 

ike into Taunton River basin for municipal supply of Brockton and several towns, in million!: 

illons. Records furnished by various municipalities.
TAUMTON RIVER BASIN

Wading River near Norton, Mass.

Location.--Lat 41°56'51", long. 71°10i38", on left bank 200 ft downstream from bridge on

 State Highway 140, 0.9 mile upstream from confluence with Rumford River, and l-g- miles 

southeast of Norton, Bristol County.

Drainage area.--42.4 sq mi.

Gage.--Water-stage recorder. Datum of gage is 49.63 ft above mean sea level, datum of

 1929. Prior to Oct. 1, 1930, staff gage at same site at datum 0.62 ft higher. Oct. 1,

1930, to May 4, 1933, staff gage at present site and datum.

Records available.--June 1925 to September 1951.

Average discharge.--26 years, 68.6 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 344 cfs Apr. 4 (gage height, 7.78 ft);

 4.4 cfs Oct. 1, 2, 8, July 10; minimum dally, 4.6 cfs Oct. 1. July 7.

1925-51: Maximum discharge, 1,030 cfs Mar. 12, 13, 1936 (gage height, 10. 

from rating curve extended above 500 cfs; minimum, 0.3 cfs Sept. 10, 1926.

Remarks.--Records excellent except those for periods of no gage-height record or backwater 

from waste, which are good. Flow regulated by powerplants and ponds above station. 

Occasional diversion above station for municipal supply of Attleboro.

Revisions (water years).--W 871: 1933.

Rating tables, water year 1950-51, except periods of backwater from waste (gage 

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

minimum, 

01 ft),

Oct. 1 to Apr. 3 

5.5

Apr. 4 to Sept. 30

207

329

October 1950 to

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

IE

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

4.6

4.8

5.1

5.2

5.1

5.2

5.2

4.3

4.9

6.2

6.2

7.0

12

TT

7.1

7.1

9.0

9.b

b.9

6.2

b.7

6.2

6 . 2

8.2

8.5

7 .1

b.O

5.6

5.4

b.2

8,4

207.7

6.70

9.9

Hov .

*9.2

b .9

fii

30

30

18

12

13

9.6

8.1

10

8.8

8.0

7.5

10

10

12

13

13

77

87

78

63

51

145

207

193

155

125

-

1,422.8

47.4

16 .6

Dec.

*111

97

87

85

100

97

95

107

133

130

153

138

130

115

104

93

83

86

75

b8

b7

60

56

5i

59

56

aS5

a5 4

a62

100

118

2,830

91.3

0

Jan.

123

*10b

103

103

98

90

86

87

73

81

74

75

72

66

108

145

144

127

112

1O8

104

98

80

115

170

170

143

120

123

112

*87

3,303

107

0

Feb.

113

219

213

180

155

142

149

248

3220

a!90

aieo

148

144

143

132

117

112

137

164

Ib7

154

153

159

140

130

128

11 a

*115

_

-

-

4,345

155

0

Mar.

108

103

96

94

108

104

101

100

93

83

80

81

7584"

113

124

117

106

103

136

178

199

ITS

155

149

143

153

137

114

85

126

3,636

117

0

Apr.

*150

166

232

327

278

231

200

182

Ib7

151

154

148

137

122

134

123

113

104

97

89

58

el

96

102

10b

98

85

73

69

*69

-

4,122

137

0

May

65

59

57

59

38

35

40

43

44

43

46

62

65

65

59

51

43

44

36

31

39

40

36

87

168

163

143

163

153

136

*127

2,240

72.3

0

June

~93 112

85

81

74

70

64

58

51

42

42

40

36

39

59

68

68

76

71

63

55

47

41

50

52

29

26

24

24

*21

-

1,661

55.4

0

July

64

4T

17

20

6.7

4.8

4.6

178

6.4

5.4

11

12

12

10

8.0

9.2

7.2

9.9

20

21

14

12

14

15

14

13

13

12

11

11

*13

437.0

14.1

0

Aug.

14

14

13

11

9.6

9.2

9.6

10

11

11

10

9.2

9.6

9.2

8.9

9.6

11

9.9

10

17

36

48

4T

31

23

20

17

15

13

10

8.0

479.8

15.5

0

Sept.

*7.5

8.3

8.9

12

13

12

14

1?

9.9

9.9

9.2

9.2

8.9

8.6

7.9

9.7

10

10

9.2

8.6

8.6

7.7

8.0

8.3

8.6

8.0

7.7

7.7

7.0

6.1

-

276.5

9.22

0

Mean 

Cf sm 

In.

7.19 

0.170 

0.20

48.3 

1.14 

1.27

ralendar year 1950: 

Water year 1950-51:

91.3 

2.15 

2.48

107 

2.52 

2.90

155 

3.66 

3.81

117 

2.7t

3.19

137 

3.23

3.b2

72.3

1.71 

1.96

Observed

Wax 238 Min 4.6 Mean 45.1 

Max 3"27 Min 4.6 Mean b8.4

55.4 

1.31 

1.46

14.1 

0.333

0.38

15.5 

0.366 

0.42

9.22

0.217 

0.24

Adjusted

Mean 45.2 Cfsm 1.07 In. 14.49 

Mean 68.5 Cfsm 1.62 In. 21.93

Peak discharge (base, 28O efs).--Apr. 4 (1:30 to 2 p.m.) 344 cfs (7.78 ft). 

* Discharge measurement made on this day.

t Diversion for municipal municipal supply supply of of Attleboro, Attle in millions of gallons. Records furnished by city

of Attlebor'

a No gage-height record; discharge estimated 

nearby streams, and estimated stage-graph based

Note. Backwater from waste on control Oct. 1

Lasis of weather records, records 

typical regulation pattern. 

Nov. Ib, Sept. 9-3O.

stations on
PROVIDENCE RIVER BASIN 131

Kettle Brook at Worcester, Mass. 

(Formerly published as Blackstone River at Worcester)

Location. Lat 42 0 13'55", long. 71°50'07", on right bank 75 ft downstream from Webster 

street Bridge at Worcester, Worcester County, 1 mile upstream from Beaver Brook.

Drainage area.--31.3 sq mi.

Records available. August 1923 to September 1951. Prior to October 1950, published as 

macKstone Kiver at Worcester.

Gage. Water-stage recorder. Concrete control since Oct. 28, 1937. Datum of gage is 

572.86 ft above mean sea level, datum of 1929.

Average discharge. 28 years, 50.2 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 596 cfs Feb. 8 (gage height, 4.79 ft); minimum,

 l.V cfs Dec. 4.

1923-51: Maximum discharge, 2,520 cfs Mar. 18, 1936 (gage height, 8.58 ft, from 

floodmarks), from rating curve extended above 550 cfs; minimum, 0.2 cfs May 17, 1940.

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

rair. City of Worcester diverts flow from about 7.0 sq mi of drainage area above 

station. Flow regulated bj reservoirs above station.

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

and discharge, In cubic feet per second)

2.2 6.8

2.5 16

2.7 26

2.9 42

3.2 

3.5 

4.0 

4.5

155

300

480

Discharge, In cubic feet pe sec nd, 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

(t)

Oct.

12

12

12

12

12

12

12

12

12

23

27 

24

23

17

14

13

13

*12

12

11,

11

10

11

12

12

SU4

10

10

10

10

10

412.4

13.3

91.7

Nov.

10

9.7

9.4

12

20

18

14

11

10

*9.9

9.7 

9.7

9.4

9.4

9.1

9.4

9.4

9.1

8.6

11

28

24

18

15

26

242.

200

109

76

60

-

1,016.8

33.9

85.2

Dec.

52

48

47

25

60

62

47

52

79

71

60 

*55

48

42

40

38

34

31

29

26

23

23

23

26

29

24

22

24

26

43

55

1,244

40.1

254.6

Jan.

31

30

31

47

42

36

33

34

31

30

29 

*29

28

28

54

74

57

47

47

52

57

53

42

65

101

76

54

46

45

40

34

1,403

45.3

258.7

Feb.

43

106

76

54

47

li.

82

462

196

96

68 

*57

64

66

56

47

45

182

181

109

90

164

172

116

88

78

72

69

-

-

-

2,928

105

245.1

Mar.

63

58

57

57

64

66

51

47

42

36

32 

36

34

49

*101

77

58

49

47

93

150

130

121

130

125

99

78

60

56

58

160

2,284

73.7

262.1

Apr.

222

158

224

344

228

165

130

103

*102

79

69 

71

78

72

68

60

57

51

49

46

40

36

54

51

44

42

38

34

31

30.

-

2,776

92.5

261,3

May

28

24

22

23

22

20

19

19

18 *18

26 

57

49

34

29

25

22

21

20

21

21

20

18

72

128

90

78

105

79

53

42

1,223

39.5

217.8

June

36

30

26

26

38

34

28

24

20

18

*16 

15

15

26

66

83

58

44

34

26

21

18

18

22

20

17

16

15

16

17

~

843

28.1

160.6

July

18

16

14

13

15

13

12

11

10

10

10 

10 *11

9.4

8.6

8.4

9.1

9.1

12

12

11

11

11

11

10

9.7

10

12

13

13

12

355.3

11.5

136.2

Aug.

14

14

14

15

15

15

14

15

15

15

16

21

52

27

22

32

71

45

30

27

29

28

23

22

21

19

19

20

18

18

17

723

23.3

159.0

Sept.

18

26

26

21

19

20

22

18

17

17

17 

18

*17

16

17

17

15

14

14

14

13

13

14

15

15

15

16

15

14

13

~

506

16.9

128.8

Adjusted for diversion

Mean 

Cfsm 

In.

17.9 

0.572 

0.66

38.3

1.22 

1.36

Calendar year 1950: 

Water year 1950-51:

52.8 

1.69 

1.95

58.2 

1.86 

2.14

118 

3.77 

3.93

86.8 

2.77 

3.20

106 

3.39 

3.78

50.3 

1.61 

1.85

Observed

Max 242 Mln 6.2 Mean 31.7 

Max 462 Mln 8.4 Mean 43.1

36.4 

1.16 

1.30

18.3 

0.585 

0.67

31.3 

1.00 

1.15

23.5 

0.751 

0.84

Adjusted

Mean 40.3 Cfsm 1.29 In. 17.47 

Mean 52.6 Cfsm 1.68 In. 22.83

Peak discharge (base, 250 cfsl.--Hov. 26 (5 to 6:30 p.m.) 300 cfs (4.00 ft)j Feb. 8 (8:15 a.m.) 

596 cfs (4.79 ft)j Apr. 4 (3 to 4:30 a.m.) 382 cfs (4.25 ft).

* Discharge measurement made on this day.

t Diversion for municipal supply of Worcester In millions of gallons. Records furnished by city 

of Worcester.

Note. Ho gage-height record Dec. 27 to Jan. 11; discharge estimated on basis of 1 discharge measurement, weather records, recorded range in stage, and records for Blackstone River at Northbridge. 

Discharge in cubic feet per second per square mile and runoff In inches may not represent natural 

flow because of regulation.
Drainage area.--25.5 sq mi.

Records available.--October 1939 to September 1351.

Gage.--Water-stage recorder. Altitude of gage is 335 ft (from topographic map). Prior 

fo Dec. V, 1939, staff gage at same site and datum.

Average discharge.--IS years, 35.2 cfs.

Extremes.--Maximum discharge during year, 233 cfs Fet-. 8 (gage height, 2.86 ft); minimum 

daily, 4.9 cfs Aug. 7.

1939-51: Maximum discharge, 249 cfs Apr. 26, 1950 (gage height, 2.93 ft); maximum 

gage height, 2.96 ft June 18, 1943; minimum daily discharge, 0.3 cfs Oct. 14-17, 1942.

Remarks.--Record 

station.

excellent. Some regulation by Lake Quinsigamond and ponds above

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

in cubic feet per

Oct. 1 to Feb. 7

0.97 6.5

1.0 7.3

1.2 14

1.4 24

2.5 160 1.2 16 2.5 160

1.4 27 3.0 265

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

1.0 

1.2 

1.4

4.4

9.1

1.7 

2.0 

2.5 

3.0

50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

7 .3

7 .8

7.8

8.4

7 .6

7 .3

7 .0

7 .0

7.3

12

23

22

22

20

16

*14

13

12

11

12

10

9.9

9.9

9.9

9.6

9.6

8.4

7 . 

7 .3

7.6

7.6

341.9

11.0

0.431

0.50

Nov.

6.8

6.5

6.8

7.0

12

14

11

10

9.9

*10

9.3

8.4

7 .8

7.3

7.0

6.8

7 .3

8.7

8.1

7.3

18

22

17

16

16

65

76

67

60

52

-

581.0

19.4

0.761

0.85

Dec .

48

42

37

39

52

49

44

45

57

56

56

*55

51

48

44

44

41

40

39

34

32

31

30

31

32

29

28

2~9 26

35

37

1,261

40.7

1.60

1.84

Jan.

36

33

33

4O

42

40

40

42

40

36

33

*33

32

30

41

51

50

47

47

48

50

50

46

56

72.

69

65

60

59

56

51

1,428

46.1

1.81

2.08

Feb.

5685"

84

77

69

63

75

211

202

162

134

112

103

*95

87

78

71

121

15j

142

128

144

147

132

115

102

95

88

_

_

-

3,133

112

4.39

4.57

Calendar year 1950: Max 242 Min 2.5

Mar.

82

80

75

72

74

72

71

70

66

64

61

*59

58

63

82

81

78

76

71

91

102

103

101

105

108

102

91

87

85

83

114

2,527

81.5

3.20

3. 69

Apr.

123

117

161

179

171

160

146

134

122

114

*108

99

95

90

83

76

72

68

61

61

56

52

57

59

54

55

51

48

45

45

-

2,762

92 .1

3.61

4.05

May

44

42

38

36

35

34

*34

33

31

5p_

31

45

48

44

41

39

36

34

32

30

30

30

3O

48

61

58

56

74

76

72

66

1,338

43.2

1.69

1.95

June

59

54

50

47

5O

46

43

38

34

33

31

30

28

*32

53

63

63

58

53

49

44

41

37

36

36

32

29

28

26

77

-

1,250

41.7

1.64

1.82

July

28

30

28

26

25

28

25

23

21

19

19

*18

19

18

17

ie

IF

15

15

17

15

13

12

12

11

9.7

9.4

9.1

9.4

9.4

8.8

541.8

17.5

0.686

0.79

Aug.

8.8

8.6

7.4

7.2

6.4

5.5

4.9

5.1

6.0

6.2

6.4

6.6

10

11

10

11

*23

22

19

17

18

18

16

14

12

11

11

13

14

12

11

352 .1

11.5

0.447

0.51

Sept.

11

14

17

16

15

14

14

14

13

12

12

12

*12

12

12

15

15

15

14

14

14

13

13

13

12

13

11

12

11

9.4

-

394.4

13.1

0.514

0.58

Mean 29.2 Cfsm 1.15 In. 15.54

Water year 1950-51: Max 211 Min 4.9 Mean 4.5.6 Cfsm 1.71 In. 23.21

* Discharge measurement made on this day. 

Note..--Discharge in cubic feet per second 

natural flow because of regulation.

nd runoff in inches may not represent
PROVIDENCE RIVER BASIN ldd 

Blackstone River at Northbridge, Mass.

Location. Lat 42°09'13", long. 71°39'09", on left Dank 800 ft downstream from Paulwnitln Co. dam at Northbridge, Worcester County, and 3 miles downstream from Quinsigartiond River.

Drainage area.--139 sq mi.

Records available. December 1939 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 260 ft (from topographic map).

Average discharge.--IS years, 197 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 2,270 cfs Feb. 8 (gage height, 9.04 ft); minimum daily, 6.6 cfs Sept. 26.

1939-51: Maximum discharge, that of Feb. 8, 1951; minimum daily discharge, 2 cfs 

Aug. 29, 1941, Sept. 5, 1942.

Maximum discharge known, 7,510 cfs Mar. 19, 1936 (gage height, 13.7 ft, from floodmarks), by computation of flow over dam 800 ft above station.

Remarks. Records good except those below 70 cfs and those for days of no gage-height 

record, which are fair. Plow regulated by mills and reservoirs above station. Daily 

discharge includes flow diverted from Nashua River basin to Blackstone River basin for 

municipal supply of Worcester.

cublr- feet per second, wate October 1950 to September 1951

Day

1

2

3

4

5

6

7

3

9

10

11

12

13

14

IE

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

75

95

75

34

79

123

53

45

95

164

235 T86"

177

117

108

*108

107

101

107

106

86

86

95

95

92

94

90

68

82

166

91

3,285

106

382.8

Nov.

90

102

106

75

109

161

153

94

74

50

91

82

*118

104

16

126

124

57

70

113

183

162

122

97

108

1,190 8"9~8

518

397

344

-

5,934

198

445.6

Dec.

308

274

258

274

430

354

318

349

468 39"9

*397

376

337

318

291

270

267

265

247

225

214

207

188

195

230

209

192

178

T99

308

282

3,827

285

301.3

Jan.

243

237

242

339

337

289

267

274

251

*242

230

*237

220

209

376

490

382

337

322

334

352

339

301

424

581

462

376

332

322

313

279

9,945

321

147.4

Ftb.

298

770

493

397

372

330

476

1,910

1,060

656

504

438

436

*428

402

359

337

987

965

650

548

827

806

626

510

462

443

430

_

-

-

16,920

604

67.0

Mar.

402

386

372

364

399

399

379

344

318

298

279 *2~9~B"

291

373

572

462

399

350

300

520

820

720

680

725

680

580

500

430

370

340

60O

13,948

450

77.0

Apr.

1 , 000

900

1 , 100

1,500

1,200

900

700

600

*530

481

443

420

430

404

374

352

352

325

306

301

282

259

334

334

308

295

284

268

?42~ 242

-

15,466

516

295.6

May

222

218

203

203

180

176

*191

177

*178

174

203

362

301

271

236

231

206

202

155 TB~6

171

175

176

490

506

408

335

55S

4H6

364

332

8,227

265

306.6

June

295

260

242

242

301

262

236

196

173

160

*162

143 T4"S

200

403

404

352

308

301

252

219

191

161

185

196

165

152

149

147

150

-

6,755

225

516.6

July

131

153

129

126

*165

*156

120

101

110

108

106

108

126

96

94

72

98

*91

143

138

101

86

84

96

97

20

3H

70

66

76

77

3,180

103

496.0

Aug.

73

68

71

61

49

61

59

*72

41

55

59

59

191

97

82

94

347

144

1O1

121

143

101

86

76

59

57

70

89

83

73

132

2,877

92.8

528.5

Sept .

61

112

148

TTO

96

86

132

60

61

66

77

79

*77

*77

66

72

79

13

51

68

60

53

57

138

82

6.6 60~

61

53

51

-

2,217.6

73.9

729.0

Adjusted for div

Mean 

Cfsm 

In.

86.9 

0.625 

0.72

175 

1.26 

1.40

Calendar year 1950: 

Water year 1950-51:

270 

1.94 

2.24

313 

2.25 

2.60

601 

4.32

4.50

446

3.21 

3.70

500 

3.60 

4.02

250 

1.80 

2.07

Observed

Max 1,190 Min 16 Mean 200 

Max 1,910 Min 6.6 Mean 267

199 

1.43

1.59

77.8 

0.560 

0.65

66.4 

0.478 

0.55

36.3 

0.261 

0.29

Adjusted

Mean 181 Cfsm 1.30 In. 17.74 

Mean 249 Cfstr 1.79 In. 24.33

Discha 

t Diversion

asurement mad

shua River basin

this day.
134 PROVIDENCE RIVER BASIN

Mumford River at East Douglas, Mass.

Location. Lat 42°04'24", long. 71°42 r 58", on right bank 100 ft upstream from Manehaug 

Koad Bridge at East Douglas, Worcester County, and 0.1 mile downstream from Southwick 

Brook.

Drainage area.--S7.8 sq mi.

Records available.--July 1939 to September 1951 (discontinued).

Gage.--Water-stage recorder. Datum of gage is 367.01 ft above mean sea level, datum of 

T929 (levels by Corps of Engineers).

Average discharge.--12 years, 44.3 cfs.

Extremes.--Maximum discharge during year, 382 cfs Feb. 8 (gage height, 4.99 ft); minimum, 

6.5 cfs Sept. 19; minimum daily, 7.5 cfs Sept. 19, 20.

1939-51: Maximum discharge, 420 cfs Mar. 22, 1948 (gage height, 5.10 ft); minimum, 

2.2 cfs Feb. 1, 2, Aug. 28, 1944; minimum daily, 3.0 cfs Aug. 12, 1942.

Remarks.--Records excellent. Flow regulated by Manehaug, Stevens, and Willis Ponds, and 

prior to December 1947 by mills upstream.

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. 7

2.9 13

3.0 18 

Note.--Same as 

following table 

above 3.0 ft.

Feb. 8 to Sept. 30 

7.5

33

144

244

385

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.

Oct.

29

*28

27

27

27

27

27

27

27

40

40

36

31

30

22

24

24

24

*24

24

22

22

24

22

22

22

22

22

22

*22

 LL

808

26.1

0.939

1.08

Nov.

19

18

17

18

34

24

20

19

19

18

20

24

24

25

25

26

26

26

25

27

51

36

30

29

37

200

115

68

52

42

-

1,114

37.1

1.35

1.49

Dec.

38

32

30

38

59

46

34

49

63

51

55

52

48

46

*46

46

45

45

47

47

46

45

44

47

48

45

42

42

52

63

58

1,449

4E.7

1.68

1.94

Jan.

54

52

65

80

78

73

72

72

68

65

65

65

64

63

114

106

*87

81

81

82

86

80

75

110

121

101

95

9O

90

87

8 LI

2 50 n

80.7

2.90

3.35

Feb.

95

140

111

104

99

93

142

262

b!75

blSO

144

*133

131

128

119

111

107

190

158

140

133

173

157

140

131

124

123

114

_

_

-

3,827

137

4.93

5.12

Mar.

81

66

63

64

72

69

65

64

60

57

53

*55

54

82

101

84

77

73

70

121

128

131

131

139

133

119

106

75

61

61

117

2,632

84.9

3.05

3.52

Apr.

90

77

166

144

109

104

106

106

104

98

*97

101

92

82

77

72

70

66

£3

£3

59

54

79

74

69

68

61

58

54

5_i

-

2,514

83.8

3.01

3.36

May

48

45

42

41

39

37

35

33

*30

30

42

£5

54

53

51

44

38

34

31

29

29

27

29

112

112

103

101

144

137

121

103

1,839

59.3

2.13

2.46

June

86

74

65

60

59

57

49

45

42

39

37

35

*34

48

86

73

63

57

51

47

44

42

40

39

38

34

33

33

34

35

-

1,479

49.3

1.77

1.98

July

33

33

30

27

29

28

24

24

24

24

23

23

23

22

22

*21

23

22

42

38

27

24

22

22

21

20

21

21

22

22

22

779

25.1

0.903

1.04

Aug.

24

21

19

22

19

19

19

19

19

31

36

24

53

27

23

26

47

31

24

80

84

49

34

24

19

17

16

16

14

13

IS.

881

28.4

1.02

1.18

Sept.

11

21

23

17

14

17

18

35

18

12

11

10

9.4

*9.0

*8.8

9.0

8.6

8.6

7.5

7.5

8.2

8.6

9.8

11

12

20

28

36

42

42

-

493.0

16.4

0.590

0.66

Calendar year 1950 : Max 200 Mln 6.7 Mean 39.0 Cfsm 1.40 In. 19.05

Water year 1950-51 : Max 262 Mln 7.5 Mean 55.7 Cfsm 2.00 In. 27.18

Peak discharge (base, 220 cfs).--N

(4.99 ft); Feb. 18 (5 a.m.) 226 cfs

jv. 26 (5 to 6 a.m.) 254 cfs (4.54 ft); Feb. 8(1 a.m.) 382 cfs 

4.42 ft); Apr. 3 (l to 2 p.m.) 220 cfs (4.39 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. Discharge In cubic feet per second per square mile and runoff In Inches may not represent

natural flow because of regulation.
PROVIDENCE RIVER BASIN 

Branch River at Forestdale, R. I.

Location.--Lat 41°59'47", long. 71°33'47", on left bank CO ft upstream from abandoned

 bridge, 600 ft donwstream from mill dam in Forestdale, Providence County, 1 mile 

east of Slatersville, and 1.6 miles upstream from mouth.

Drainage area.--93.3 sq mi.

Records available.--September to December 1909 and January 1912 to July 1913 (gage

 heights only), January 1940 to September 1951. Published as "at Branch Village 

1909, 1912-13.

Gage.--Water-stage recorder. Altitude of gage is 180 ft (from topographic map). Prior

 fo July 28, 1913, staff gage at site 1 mile downstream at different datum.

Average discharge.--11 years, 144 cfs.

Extremes.--Maximum discharge during year, 1,370 cfs Feb. b (gage height, 6.15 ft); minimum daily, 13 cfs Oct. 21, £2.

1940-51: Maximum discharge, 2,120 cfs Dec. 2, 1942 (gage height, 7.69 ft); minimum 

daily, 5.2 cfs Oct. 7, 1946.

Discharge of flood in March 1936 was about 5,800 cfs, by computation of flow over 

dam 1 mile above station.

Remarks.--Records excellent. Flow regulated by mills and reservoirs above station.

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

and discharge, In cubic feet per second)

1.8

1.9

2.0 

2.3 

2.6 100

183

320

490

870

1,300

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

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

14 

20

20

19

20

17

15

16

19

29

85

*29

128

80

19

73

33

14

14

14

13

13

15

53

73

17 

19

19

20

*33

31

984

31.7

0.340

0.39

Nov.

18 

17

16

16

28

39

58

58

48

19

37

40

32

76

78

75

73

24

23

81

112

113

24

72

27

730 

680

427

*i20

244

-

3,605

120

1.29

1.44

Dec.

211 

119

147

214

272

251

201

214

376

348

*350

297

252

223

204

142

185

227

184

178

175

174

80

29

134

197

173

179

98

219

6,231

201

2 .15

2 .48

Jan.

237

188

223

241

153

188

234

184

*177

175

172

82

19

181

480

331

261

199

203

225

256

191

237

485

360

223

267

212

192

7 , 009

226

2 .42

2.79

Feb.

194 

475

390

320

317

239

278

*1,200

739

451

367

345

303 :io

284

243

178

493

666

494

420

531

588

421

392

406

324

-

-

-

11,710

418

4.48

4.57

Mar.

307 

288

238

294

406

320

*263

244

226

151

188

250

201

215

472

373

239

241

268

358

555

430

388

314

3 2 (D

32E

227

217

209

400

9,172

296

3.17

3.66

Apr.

512 

439

747

1,070

700

564

449

399

408

332

281

276

289

230

246

*273

224

211

205

194

128

169

269

296

249

204

88

83

202

-

9,923

331

3.55

3.96

May

186 

180

*176

171

79

27

110

122

68

77

78

40

147

206

141

87

114

158

72

SA

104

124

143

153

495

430

£75

484

376

369

5, 995

193

2 .07

2.39

June

232 

128

147

205

186

178

*175

73

17

19

133

162

131

140

97

34

172

186

100

108

185

138

22

25

123

140

73

71

23

-

3,526

118

1.26

1.41

July

22 

24

24

24

*27

23

24

24

28

74

82

70

45

21

19

41

15

19

28

26

14

39

39

85

65

17

15

19

70

140

1,177

38.0

0.407

0.47

Aug.

132 

59

15" 15

22

30

*16

22

2 1

27

28

24

25

24

25

27

86

22

25

81

368

237

187

74

22

24

113 

64

25

24

25

1,893

61.1

0.655

0.75

Sept.

25

32

45

157

178

169

76

17

18

22

*22

23

23

23

23

24

24

24

24

23

23

24

27

73

79

80

26 

17

20

SI

-

1,362

45.4

0 . 48 7

0.54

Calendar year 1950: Max 828 Min 9.9 Mean 129 Cfsm 1.38 In. 18.84

Water year 1950-51 : Max 1,200 Min 13 Mean 171 Cfsm 1.83 In. 24.95

Peak discharge (bage, 880 cfs).--Hoy. 26 (4 to 5 p.m.) 1,020 efs (5.38 ft); Feb. 8 (7 a.m.. 8:30 

a.m., 10:30 a.m.) 1,370 cfs (6.15 ft); Apr. 4 (l to 2 a.m.) 1,280 cfs (5.95 ft).

* Discharge measurement made on this day.

Note.--Discharge In cubic feet per second per square mile and runoff In inches may not represent 

natural flow because of regulation.
PROVIDENCE RIVER BASIN lob

Blaekstone River at Woonsocket, R. I.

Location.--Lat 4£°00'22", long. 71°30'13", on right bank, in Woonsocket, Providence 

County, 50 ft downstream from Peters River.

Drainage area.--41£ aq mi.

Records available.--February 1929 to September 1951.

Extremes , Maximum discharge during year, 4,920 cfs Feb. r, (gage height, 7.56 ft); mitii-

 mum daily, 95 cfs Oct. 1.

1929-51: Maximum discharge, 15,100 cfs July 24, 193S (gage height, 14.43 ft); minimum daily, 21 cfs Aag. 11, 1934, flow diverted around station in Hamlet Trench not 

included.

Remarks.--Records good. Flow regulated by powerplants and reservoirs above station.

Extremes and figures of daily discharge include flow diverted from Nashua River basin 

to Blackstone River basin for supply of city of Worcester, Mass., and flow diverted 

around station in Hamlet Trench.

eptember 1951

140

136

137

177

137

139

166

157

121

118

177

215

161

164

156

277

1, 660 

1, 240 

1,230 

1,040 

1.37C

1,510

1,370

1,260

1,110

1,090

1, 630

2,410

1,900

1,750

1,510

1,470

1, 090

1,010

985

749

722

750

821

1,010

876

717

633

649

591

296

303

188

211

273

395

238

279

290

239

171

123

165

185

215

176

184

215

273

236

264

330

457

418

*178 

192

204

190

296

171

157

142

169

Total 

Mean 

(t)

15,824

527

445.6

30,352

979

147 .4

42,306

1,410

295.6

7,854

253

496.0

Adjusted for diversion

Mean 

Cf sm 

In.

184 

0.442 

0.51

504 

1.21 

1.35

Calendar year 1950 : 

Water year 1950-51:

805 

1.94

972 

2.34 

2.69

1,759 

4.23

4 . 40

1,297 

3.12

1,395 

3.35 

3.74

796 

1.91 

2.Z1

Observed

Max 3,24O Mln 95 Mean 573 

Max 4,040 Mln 95 Mean 761

572 

1.38 

1.53

229 

0.550 

O.E3

294 

0.707 

0.82

198

0.476

0.53

Adjusted

Mean 559 Cfam 1.34 In. 18.24 

Mean 743 Cfsm 1.79 In. 24.23

Peak discharge 3,400 cfs).--Feb. 8 (7:30 p.m.) 4,920 cfs (7.56 ft); Apr. 4 (7:30
137

Woonasquatucket River at Centerdale, R. I.

Location.--Lat 41°51 

on U. S. Highway 44 

moath.

'3C", long. 71°29'16", on right tank 75 ft downstream from fridge 

44, at Centerdale, Providence County, and 6j miles upstream from

Drainage area.--38.3 sq mi.

Reconla available.--July 1941 to September 1951.

Gage.--Water -stage recorder. Altitude of gage is 95 ft (from topographic map).

Average discharge.--10 years, 60.0 cfs.

Extremes.--Maximum discharge during year, 497 cfs Apr. 3 (gage height, 4.48 ft); minimum

1941-51: Maximum discharge, 543 cfs Mar. 17, 1948 (gage height, 4.38 ft); minimum 

daily, 3.4 cfs Oct. 13, 19, 1941.

Flood in March 193C reached a discharge of 1,000 cfs, by computation of flow over 

dam three-quarters of a mile below station.

Remarks.--Records good. Flow regulated by mills and reservoirs above station. Discharge 

includes leakage through bypass canal.

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

in cubic feet per second)

(Shifting-control method used or backwater from aquatic vegetation 

Oct. 30 to Nov. 9, Aug. 12, 14, 19, 26, Sept. 1-3, 8-30. Leakage 

through bypass canal included Oct. 10, 11, Nov. 21, 22, 24, Nov. 26 

to Dec. 1, Dec. 4-16, 18-2E, Dec. 25 to May 5, May 7-19, May 21 

to June 9, June 11-16, 18-23, 25-30, July 19, 20, Aug. 20)

1.15

1.3

1.5

2 .0

108

176

353

464

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

Day

1

j

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

8.8

29

34 

32

30

30

28

8.4

*26

44

*46

35

35

34

9.7

26

32

33

31

28

18

7.9

29

38

33

30

29

9.3

7.1

26

29

836.2

27.0

0.705

0.81

Nov.

30

*30

13

26

35

38

35

34

36

14

11

29

32

31

30

29

12

10

34

93

47

23

51

42

136

94

84

72

62

-

1,243

41.4

1.08

1.21

Dec.

58

39

W

83

*64

*60

97

"55 101

101

84

74

73

64

51

38

74

61

58

54

51

40

26

51

71

54

52

82

84

51

1,943

62.7

1.64

1.89

Jan.

67

81

*74

68

49

45

82

61

58

58

60

47

54

157

113

86

78

77

64

69

87

66

116

130

102

80

98

109

98

92

2,472

79.7

2.08

2.40

Feb.

121

203

149

*155

137

165

374

286

218

177

161

151

141

129

118

107

205

208

189

171

202

192

169

152

147

134

123

-

_

-

4,811

172

4.49

4.67

Mar.

118

116

119

134

119

115

*115

110

100

103

114

107

138

158

130

127

125

128

202

209

209

196

187

168

157

141

122

120

116

240

4,353

140

3.66

4.23

Apr.

209

204

348"

298

*245

209

184

174

152

141

131

132

127

116

122

103

98

98

98

86

83

122

109

106

103

96

£2

74

BS

-

4,498

150

3.92

4.37

May

*75

72

66 

69

62

40

76

64

57

56

73

70

53

80

66

60

58

57

58

21

66

57

58

119

121

127

128

187

151

121

121

2,496

80.5

2.10

2.42

June

"85" 100

72 

85

74

*65

*61

56

48

27

60

53

53

62

70

61

33

68

55

53

53

51

46

22

52

47

48

48

49

49

-

1,706

56.9

1.49

1.66

July

21=

*29 

29

21

40

38

34

12

*38

37

36

38

38

34

9.5

36

36

59

54

46

59

12

38

36

36

35

36

34

14

*37

*36

1,023.3

55.0

0.862

0.99

Aug.

40

36 

36

34

15

36

35

57

37

36

33

16

56

16

34

38

45

37

18

44

41

38

37

36

37

12

34

35

36

35

55

1,055

33.3

0.869

1.00

Sept.

31

14

9.3 

34

*37

37

*37

34

14

35

35

35

35

35

14

14

35

36

18

33

34

14

14

39

38

39

39

37

12

7.9

-

845.2

28.2

0.736

0.82

Calendar year 1950 : Max 203 Min 6.2 Mean 47.2 Cfsm 1.23 In. 16.73

Water year 1950-51: Max 374 Min 7.1 Mean 74.7 Cfsm 1.95 In. 26.47

* Discharge measurement made on this day. 

Note.--Discharge in cubic feet per second per squa 

atural flow because of regulation.

nile and runoff in inches may not represent
138 PAWTUXET RIVER BASIN

South Branch Pawtuxet River at Washington, R. I.

Location.--Lat 41°41 I 24", long. 71°33'59", at Washington, Kent County, on right bank 150 

It downstream from highway bridge and 0.9 mile upstream from outlet of Tiogue Lake.

Drainage area.--63.8 sq mi.

Kecords' available.--October 1940 to September 1951.

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

Average discharge.--11 years, 114 cfg (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 64" cfs Apr. 4 (gage height, £.74 ft); minimum

 daily, 9.6 cfs Oct. 8, Nov. 12.

1940-51: Maximum discharge, 959 cfs June 1, 1948 (gage height, 2.78 ft), from 

rating curve extended above 440 cfs by logaritlimic plotting; maximum gage height, 2.80 

ft Mar. 10, 1942; minimum daily discharge, 2.8 cfs Aug. 27, 1944.

Flood in March 1936 reached a discharge of 1,810 cfs, by computation of flow over 

dam just above gage.

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

which are fair. Flow regulated by Flat River Reservoir (usable capacity, 250,000,000 

cu ft) and smaller reservoirs. Diversion above station from Carr fond for municipal 

supply of Coventry, Warwick, and West Warwick.

Rating tables, water year 1950-51, except periods of Ice effect (gage 

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

1.25

1.3

1.4

1.5

1.6

Oct. i to Jan. 4

1.9 

2.1

1.6 

1.3 

2.0 

2.3 

2.8 690

Discharge, In cubic feet pe

Note. Same as 

preceding table 

below 1.6 ft. 

ear 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

(t)

Oct.

11

57

60

62

62

*60

11

9.6

55

64

60

66

64

12

14

57

58

61

58

55

13

11

59

59

59

59

58

12

10

53

56

1,405.6

45.3

-13.3

Nov.

55

54

*55

12

21

56

58

51

52

52

11

9.6

50

5.1

5?

53

51

11

10

53

86

67

20

60

2O

42

111

103

103

103

-

1,535.6

51.2

+48.2

Dec.

101

29

19

81

*87

91

90

97

32

28

113

128

144

136

128

64

92

154

130

115

107

111

7O

106

130

167

180

185

192

135

72

3,314

107

+39.5

Jan.

136

185

163

156

*145

91

117

217

196

177

172

118

28

44

197

249

238

211

143

94

127

201

182

192

222

182

158

163

238

211

192

5,145

166

-1.79

Feb.

206

238

272

296

296

249

*233

b320

b380

290

249

238

228

222

211

151

110

211

383

308

266

266

249

217

222

260

233

206

-

-

-

7,010

250

+2.03

Mar.

196

192

134

a!31

*a249

249

222

201

138

97.

130

178

157

182

266

284

222

2oe

224

270

439

397

290

244

260

276

239

218

210

208

265

6,974

225

+ 4.82

Apr.

383

376

488

*626

*495

362

255

228

272

238

236

228

233

196

201

226

201

188

175

164

113

131

211

249

244

226

194

135

146

186

-

7,6O6

254

-3.51

May

157

138

127

*115

63

91

137

116

107

99

104

123

168

198

157

134

114

97

44

66

138

121

111

166

238

211

244

320

244

187

210

4,545

147

+ 1.01

June

175

110

116

*152

132

123

111

98

41

54

116

102

86

104

135

154

196

228

203

170

140

113

54

70

123

102

95

92

92

22.

-

3,509

117

+1.20

July

21

31

40

43

50

48

43

43

*96

90

92

84

84

19

17.

a85

a88

a84

a86

86

20

a!9

a84

a86

a83

a83

a83

a 18

a!7

a84

*8Z

1,889

60.9

-24.2

Aug.

83

62

76

16

3JL

79

78

79

7F

76

15

15

71

71

74.

74

77

16

15

73

75

74

71

70

15

15

69

73

69

70

69

1,831

59.1

-21.9

Sept.

15

13

15

78

69

71

72

*16

16

63

70

70

65

65

14

13

62

66

F4

£4

60

14

15

64

67

66

64

£3

12

11,

-

1,422

47 .4

-16.3

Adjusted for diversion and change In re

Mean 

Cfsm

32.1

0.503 

0.58

99.4 

1.56 

1.74

Calendar year 1950 : 

Water year 1950-51:

146 

2.29

2.65

164 

2.57 

2.97

252 

3.95 

4.12

230 

3.61 

4.15

250 

3.92 

4.37

148 

2.32 

2.67

Observed

Max 568 Mln 9.6 Mean 95.8 

Max 626 Min 9.6 Mean 127

118 

1.85 

2.07

36.8 

0.577 

0.66

37.2 

0.583

0.67

31.1 

0.4R7 

0.54

Adjusted

Mean 103 Cfsm ] .61 In. 21.87 

Mean 123 Cfsir 2.01 In. 27.19

* Discharge measurement made on this day.

t Diversion above station from Carr Pond for municipal supply of Coventry, Warwick, and West Warwick, and change in contents In Plat River Reservoir, equivalent In cubic feet per second. - - - _ ... .... . . . _ .. ent, weather records.

River Rest Diversion above station from Carr Pond for municipal supply of Coventry, Warwick, an 

wick, and change in contents In Plat River Reservoir, equivalent In cubic feet per secon

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weat 

recorded range in stage when available, records of elevation and gate operation at Flat 

ervolr, and records for Pawtuxet River at Cranston.

b Stage-discharge relation affected by i
PAWTUXET RIVER BASIN 139

Pawtuxet River at Cranston, R. I.

Location.--Lat 41°45'03", long. 71°26'44", on left bank, in Cranston, Providence County,

 u.Y mile upstream from Poeasset River.

Drainage area.--300 sq mi.

Records available. December 1939 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 11 years, 348 cfs (adjusted for storage and diversion).

Extremes.--Maximum discharge during year, 1,430 efs Apr. 3 (gage height, 7.07 ft); minimum

 daily, 49 cfs Oct. 1.

1939-51: Maximum discharge, 2,150 cfs Jan. 15, 1940, Feb. 8, 1941, from rating 

curve extended above 800 cfs; maximum gage height, 8.25 ft Jan. 15, 1940; minimum daily 

discharge, 22 cfs Sept. 4, 1944.

Remarks.--Records excellent except those for periods of backwater from aquatic vegetation, 

wtilch are good. Flow regulated by powerplants, and by Scituate, Flat River, and other 

reservoirs, having a total usable capacity of about 5 1/3 billion cu ft. Water diverted above station from Scituate Reservoir for municipal supply of Providence, North 

Providence, Cranston, Johnston, Smithfield, and Warwick.

Revisions (v<ater years).--W 971: 1940-4C.

Rating table, water year 1950-51, except periods of backwater from 

vegetation (gage height, in feet, and discharge, in cubic feet per 

(Stage-discharge relation affected by ice Feb. 10)

uatic 

cond)

3.5 

3.7 

4.0 

4.5

181

378

5.0 

6.0

7.0

635

1,060

1,410

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

Day

1

2

3

4

E

6

7

8

9

10

11

12

13

14

15

It17

18

19

Q

1

z

3

4

5

e

8

9

30

31

Tbtal

Mean

(t)

Oct.

49

70

137

142

144

145

102

52

*99

*197

180

155

158

104

51

89

142

141

143

143

98

58

76

138

1Z9

1Z5

1Z6

93

55

66

1Z8

3,535

114

-47.3

Nov.

138

*150

148

103

99

151

173

163

157

159

104

57

93

154

156

155

155

107

54

95

397

30Z

155

196

135

429

350

311

280

Z65

-

5,391

180

+123.7

Dec.

257

151

96

222

323

*253

242

325

307

178

320

329

325

321

305

161

145

310

292

271

260

258

142

152

198

329

309

326

441

409

234

8,191

264

+188.3

Jan.

238

407

*396

381

364

171

198

428

418

386

372

388

163

86

547

664

562

488

440

202

212

412

403

560

646

555

283

276

474

516

458

12,094

390

+162.6

Feb.

607

961

526

493

*655

603

60S

1,120

906

730

566

586

598

692

674

601

506

814

1,010

921

80S

847

840

637

670

775

714

669

-

-

"

20,135

719

+199.9

Mar.

634

636

556

545

*751

716

67O

644

606

457

509

637

573

634

847

784

391

346

514

798

877

869

794

486

428

599

587

551

531

522

580

19,072

615

+128.4

Apr.

580

726

1,050

1,530

1,170

*985

770

700

812

730

711

709

732

618

650

732

666

627

603

594

£45

238 536"

613

596

579

533

312

253

466

"

19,866

662

+111.5

May

468

449

429

*414

232

142

*364

336

325

306

337

239

265

391

337

292

E56

239

137

83.

280

264

249

420

533

404

411

817

799

574

706

11,498

371

+96.0

June

618

474

509

604

526

*294

*255

251

121

B_l

258

222

210

241

327

229

313

568

406

329

286

256

130

113

251

221

202

197

208

126

-

8,826

294

+13.3

July

75

*95

*141

124

132

155

117

86

176

*183

178

177

177

103

58

112

171

173

181

186

96

54

123

171

157

162

165

93

51

115

164

4,151

134

-50.0

Aug.

183

*169

167

113

63

93

161

185

178

167

110

69

109

128

204

187

203

107

61

114

206

180

167

173

108

51

117

181

2O8

205

188

4,555

147

-54.0

Sept.

124

61

67

118

183

*196

*232

122

73

123

190

196

193

188

112

65

115

177

183

176

181

106

62

128

177

176

175

181

107

51

~

4,238

141

-63.7

Adjusted for diversion and change in contents

Mean 

Cfsm 

In.

66.7 

0.334 

0.38

302 

1.51 

1.6S

Calendar year 1950: 

Water year 1950-51 :

452 

2.26 

2.61

553 

2.76 

3.19

919 

4.60 

4.78

744 

3.72 

4.29

774 

3.87 

4.32

467 

2.34 

2.69

Observed

Max 905 Min 45 Mean 215 

Max 1,330 Min 49 Mean 333

308 

1.54 

1.72

83.9 

0.420 

0.48

93.0 

0.465 

0.54

77.6 

0.388 

0.43

Adjusted

Mean 3O4 Cfsm 1.52 In. 20.63 

Mean 400 Cfsrr. 2.00 In. 27.12

Discharge measurement made on this day.

t Diversion above station from Scituate Reservu 

Scituate and Flat River Reservoirs, equivalent in 

Providence Water Supply Board and Quidnick Reservoir Co.

Note. Backwater from aquatic vegetation Oct. 1 to Feb. 3, June 11 to Sept.

fo 

cubic

:ipal supply and change in contents in 

per second. Records furnished by
140

Location.--Lat 41°38'2a", long. 71°£6'45", on right bank 45 ft upstream from Old Forge 

Dam in North Kingstown, Washington County, lj miles south of Village of East Greenwich, Kent County, and "j miles upstream from mouth.

sq mi.

Records available.--August 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge.--11 years, 37.4 cfs (unadjusted).

Extremes.--Maximum discharge during year, 227 cfs Apr. 3 (gage height, 2.045 ft); minimum, 3.1 cfs Oct. 10.

1940-51: Maximum discharge, 392 cfs Aug. 8, 1946 (gage height, 2.48 ft); maximum 

gage height, 2.70 ft Sept. 14, 1944 (backwater from hurricane tidal wave); no flow 

Oct. 24-26, 1947 (due to closing of gate at Old Forge Dam).

Maximum stage known, about 6.5 ft Sept. £1, 1938, from information by local resident 

(backwater from hurricane tidal wave).

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

Water diverted above station for supply of East Greenwich, North Kingstown, Warwick, 

and United States Naval Establishments.

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

and discharge, in cubic feet per second)

1.1 3.4

1.2 13

1.3 26

1.5 66

2.C 213

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

Day

1

0

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

tt'l

Oct.

4.6

4.6

4.2

4 f 2

3^9

*3.5

3.5

3.5

3.5

11

12

12

12

9.1

7.6

6.2

5.4

5.4

5.0

5.0

5.0

5.4

5.8

5 .0

5.8

5.0

4.e

4.6

5.0

E.4

5.0

182.8

5.90

-

7F.9

Nov.

4.6

5.0

5.4

6.2

19

18

14

*10

8.6

7.6

6.6

6 .2

5.7

5.3

5.3

5.7

5.7

e.e

7.1

7.1

60

54

33

25

21

110

98

= 1

36

715.7

23.9

-

74.2

Dec.

31

27

26

*28

51

42

34

42

82

64

58

52

43

38

34

34

32

32

29

27

25

25

25

28

31

27

39" 22

98

76

1,225

39.5

-

71.4

Jan.

63

50

43

46

*43

38

40

51

41

37

35

44

42

38

96

117

82

P4

58

54

52

46

40

127

145

103

76

ee

63

50

1,906

61.5

-

70.9

Feb.

140

165

120

96

85

78

*86

183

120

95

82

80

78

82

7£

70

64

100

130

lir

95

110

115

100

86

78

74

70

_

-

2,768

98.9

-

64.2

Mar.

68

*66

66

71

*92

82

71

66

BO

57

54

54

53

63

10 e

87

71

64

58

126

171

12S

112

103

82

71

69

71

122

2,530

ai.e

-

72. B

Apr.

126

*98

171

180

132

109

98

89

87

82

82

87

100

92

82

74

76

71

66

64

60

58

96

114

87

76

66

62

58

57

-

2,700

90 .0

-

74.4

May

54

51

47

*46

46

45

47

43

40

39

51

98

82

59

48

43

39

37

35

35

40

38

34

88

114

114

87

114

89

69

59

1,831

59.1

-

87.0

June

51

44

41

*41

39

39

36

32

31

30

30

29

27

35

64

71

58

65

53

39

32

29

29

32

28

24

22

22

22

22

-

1,117

37.2

-

92 .8

July

23

23

20

19ie

17

15

15

13

*13

12

12

12

12

11

10

15

15

15

17

16

14

12

14

13

11

10

9.4

9.7

10

9.0

435.1

14.0

-

117.9

Aug.

11

*9.0

9.0

8.0

7.5

7.5

6.6

9.0

8.5

8.1

7.6

7.6

7 .6

7.1

7.1

7.1

9.0

9 .n

8.6

9.4

19

20

16

11

9.2

8.0

7 .2

6.6

6.2

5.8

5.6

278.9

9 . 00

~

108.9

Sept.

5 5

sis

£.6

6 .5

*6.2

6.6

9.1

10

9.7

8.1

6.6

5.7

5.7

5.3

4.3

8.1

8.6

6.6

5.7

5.7

5.3

5.7

7 .6

7 .1

6 .6

5.7

4.9

4.9

4.9

4.9

-

194.4

6.4P

-

94.9

Calendar year 1950: Max 230 Mln 3.5 Mean 32.8 Cfsm - In. - Ac-ft

Water year 1950-51: Max 183 Min 3.5 Mean 43.5 Cfsm - In. - Ac-ft

Peak discharge (^ase, , 190 cfs). .. --Feb. 1 or 2 (time unknown) 193 cfs (1.945 ft); Feb. 8 (8 a.m.)

213 cfs (2.On ft); Mar. 20 (9 to 12 p.m.) 200 cfs (1.96 ft); Apr. 5 (6 to 9 p.

* Discharge .neasurement made on this day.

t Diversions, in millions of gallons, for supply of East Greenwich, North Kingstown, Warwick, and 

U. S. Naval Establishments. Diversion for calendar vear 1950 was 964.3 and for water year 1950-51 

wae 1,006.3 millions of gallons.

MotP.--Mo gage-height record Jan. 28 to Feb. 7, Feb. 12 to Mar. 2, July 21 to Aug. 1, Aug. 24 to 

Sept. 5; discharge estimated on basis of 3 discharge measurements, weather records, recorded range 

in stage, and records fjr Wood River at Hope Valley, Pawcatuek River at Wood River Junction, and
PAWCATUCK RIVER BASIN 141

Pawcatuck River at Wood River Junction, R. I.

Location. Lat 41°26'42", long. 71°40'53", on right bank at downstream side of bridge on 

Alton-Carolina road, 0.8 mile northeast of Wood River Junction, 1-t- miles southwest of 

Carolina, Washington County, and 2.9 miles upstream from Wood River.

Drainage area. 100 sq mi.

Records available.--December 1940 to September 1951. Prior to October 1943, published as 

Charles River at Wood River Junction.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 40 ft (from topographic map).

Average discharge. 11 years, 164 cfs.

Kxtremes. Maximum discharge during year, 502 cfs Apr. 5 (gage height, 4.07 ft); minimum, 

27 cfs Oct. 8, 9, Nov. 16, 18; minimum daily, 27 cfs Oct. 8.

1940-51: Maximum discharge, 786 cfs (revised) Mar. 22, 1948 (gage height, 5.11 ft); 

minimum, 7.4 cfs Oct. 10, 1947; minimum daily, 15 cfs Oct. 11, 1947.

Revisions.--The maximum discharge for the water year 1948 has been revised to 786 

cfs, Mar. 22, 1948 (gage height, 5.12 ft), superseding figure published in Water-Supply 

Paper 1111.

Remarks.--Records excellent. Flow regulated by powerplant and mills above station.

Revisions (water yearsI.--W 1051: Drainage area. Revised figures of discharge, in cubic 

feet per second, for high-water periods in the water year 1948, superseding those published in Water-Supply Paper 1111, are given herewith:

24...

June 1. . ,

753

706

728

777

729

Revised peak discharge.--Mar. 22 

fs; June 2 (10 a.m. to 12 m.) 780

3:30 a.m. tc 1 p.m.) 786

Month

June .

Water year 1947-48.... 

Calendar year 1948 ....

Rati

Cfs

16 

11 

84 

81

ng table, water

1.7 21 

2.0 50

-days

,399 

,828 

,635 

,937

Maximum

780 

777 

780 

780

Min Imum

292 

200 

15 

32

year 1950-51 (gage height 

cubic feet per seco

2.4 116 

3.0 266

Mean

529 

394 

231 

224

Per square 

mile

5.29 

3.94 

2.31 

2.24

Runo 

inc

6 

4

31 

30

, in feet, and discharge, in 

nd)

4.1 512

ff in 

he 3

.10 

.40 

.48 

.47

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.

Oct.

31

45

35

33

30

30

29

27

28

*30

38

35

57

38

45

51

40

41

37

39

28

30

45

39

37

36

41

37

29

39

40

1, 140

36.8

0.368

0.42

Nov.

33

35

34

29

52

73

72

*61

62

50

38

44

51

44

44

39

40

30

39

52

97

114

114

125

99

180

203

205

197

177

-

2,433

81.1

0.811

0.90

Dec.

148

123

116

125

1E5

128

134

132

145

155

170

160

148

138

127

125

123

123

116

104

94

88

95

101

105

106

89

87

107

138

172_

3,847

124

1.24

1.43

i Jan.

190

182

172

*174

164

148

145

162

140

143

140

148

143

143

208

239

250

258

244

223

210

197

174

213

269

297

302

276

263

252

210

6,279

203

2.03

2.34

Feb.

252

340

342

332

328

315

318

390

361

370

349

328

323

325

308

287

274

328

357

370

364

370

364

3E5

337

313

297

282

-

-

-

9,279

331

3.31

3.45

Mar.

269

266

258

263

287

284

282

*274

258

244

234

226

221

229

261

269

276

266

247

306

368

428

436

407

384

357

332

313

300

300

349

9,194

297

2.97

3.42

Apr.

370

389

434

472

494

469

415

382

357

337

320

310

315

310

302

*292

287

274

263

252

244

234

261

282

295

297

271

252

242

231

-

9, 653

322

3.22

3.59

May

221

*210

200

192

184

180

172

170

162

160

167

208

223

223

216

195

180

170

152

is¥

162

157

157

197

236

271

284

3?0

305

289

266

F,381

206

2 .OP

2.37

June

242

221

205

195

184

177

170

160

143

145

145

134

129

134

162

184

190

187

180

170

157

143

129

138

136

127

110

118

110

105

-

4,730

158

1.58

1.76

July

106

106

105

99

95

95

92

88

67

77

*77

77

78

74

56

76

69

65

69

73

58

70

88

71

64

68

58

49

61

68

5e

2,35E

76.0

0.7RO

0 . 88

Aug.

61

66

59

47

53

6O

50

61

52

52

39

45

52

53

60

52

77

53

61

58

52

52

49

49

49

47

53

48

45

49

41

1,645

53.1

0.531

0.61

Sept.

44

48

42

52

40

42

*56

44

50

59

48

43

41

34

39

40

42

54

45

40

42

32

43

49

57

48

43

42

31

32

-

1,322

44.1

0.441

0.49

Calendar year 1950: Max 495 

Water yeari950-51 : Max 494

Mean 130 

Mean 160

Discharge measurement made
142 PAWCATUCK RIVER BASIN

Wood River at Hope Valley, R. I.

Location. --La t 41°29'58", long. 71°42'57", on right bank 0.2 mile downstream from highway 

bridge at Hope Valley, Washington County, and 6.6 miles upstream from mouth.

Drainage area. --72. 4 sq mi.

Records available. --August to December ly09, March 1941 to September 1951.

Gage . Water- stage recorder and concrete control. Altitude of gage is 65 ft (from topographic map). August to December 1909, staff gage at site 1,000 ft upstream at different datum.

Average discharge. --10 years, 133 cfs.

Extremes. --Maximum discharge during year, 747 cfs Apr. 4 (gage height, 5.51 ft); minimum, 

26 cfs Oct. 9, 10; minimum daily/ 27 cfs Oct. 9.

1941-51: Maximum discharge, 819 cfs (revised) Mar. 17, 1948 (gage height, 5.77 ft); 

maximum gage height, 5.95 ft Dec. 31, 1942; minimum discharge, 4.4 cfs Oct. 18, 1941; 

minimum daily, 10 cfs Oct. 13, 1941.

Flood in March 1936 reached a discharge of 1,540 cfs, by computation of peak flow 

over dam a quarter of a mile above station.

Revisions. The maximum discharge for the water year 1948 has been revised to 819 

cfs Mar. _ 17, 1948 (gage height, 5.77 ft), superseding figure published in Water-Supply 

Paper 1111.

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

fair. Some regulation at low flow by raills and ponds above staion; regulation greater 

prior to 1948.

Revisions. Figures of supplemental peak discharges for water year 1948, superseding those 

published in Water-Supply Paper 1111, have been revised as follows: Mar. 17 (11 p.m.) 

819 cfs; Apr. 2 (6:45 p.m.) 747 cfs; May 18 (5 a.m.) 799 cfs; May 31 (9:30 p.m.) 

813 cfs.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cutio feet per second)

1.8 

2.0 

2.2 

2.5 128

3.0 

4.O 

5.0 

5.5

252

444

624

744

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

Day

1

£

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf am

In.

Oct.

31

28

29

31

31

30

30

28

27

*40

56

65

75

60

51

43

43

44

43

43

39

35

35

39

41

41

39

38

34

33

35

1,237

39.9

0.551

0.64

Nov.

36

38

38

40

78

105

85

73

67

63

56

50

46

46

46

46

47

47

43

42

156

154

112

88

9E

269

289

241

£04

179

-

2,876

95.9

1.32

1.48

Dec.

138

121

110

113

*174

176

157

165

208

198

181

170

154

141

128

123

114

110

105

97

99

94

94

92

96

88

86

83

125

208

196

4,144

134

1.35

2.13

Jan.

181

162

154

156

151

136

133

157

136

128

121

123

121

112

220

284

234

208

186

170

154

141

131

203

524

267

225

194

186

184

165

5,447

176

2.43

2.80

Feb.

228

379

349

295

261

*229

248

450

a370

a310

a280

a250

245

241

230

213

204

302

388

336

293

326

351

£99

259

239

230

220

_

-

-

8,025

287

3.96

4.12

Mar.

213

213

211

213

243

230

21b

216

206

191

176

170

170

202

284

259

£37

211

194

352

505

401

361

322

289

C61

£45

234

230

245

391

7,893

255

3.5£

4.05

Apr.

447

405

534

716

*582

457

381

324

303

289

282

287

293

280

248

237

241

230

218

211

201

184

270

338

278

250

228

208

198

196

-

9,316

311

4.30

4.79

May

184

181

168

162

154

144

141

144

146

146

163

252

228

191

178

159

144

128

119.

119

126

126

123

212

265

243

£34

377.

340

270

232

5,804

187

2.58

2.98

June

208

181

165

157

*157

149

136

121

110

103

101

103

99

116

168

184

159

157

151

136

119

107

101

107

99

92

86

88

84

80

-

3,824

127

1.75

1.96

July

80

80

78

73

67

66

62

57

55

57

59

59

62

55

51

48

62

78

80

8_4

69

59

59

59

57

53

51

50

48

iS.

46

1,910

61.6

0.851

0.98

Aug.

53

*61

56

52

44

42

40

46

47

47

43

43

42

41

39

40

51

48

42

36

36

44

44

42

38

34

33

33

40

39

38

1,334

43. 0

0.594

O.69

Sept.

34

33

35

35

35

40

52

50

41

36

36

38

39

36

35

40

36

36

38

35

34

30

30

33

38

a35

a32

a30

a29

a29

-

1,080

36.0

0.497

0.55

Calendar year 1950: Max 445 Mln 22 Mean 119 Cfsm 1.64 In. 22.35

Water year 1950-51: Max 716 Mln 27 Mean 145 Cfsm 2.00 In. 27.17

Peak discharge (base, 55O efs).--Apr. 4 (12 

Discharge measurement made on this day. 

No ga^e-heigut record; discharge estimated 

er at Wood Ri^er Junction.

to 1 p.m.) 747 cfs (5.51 ft). 

ither records cords for Pawcatuck
PAWCATUCK RIVER BASIN 143

Pawcatuck River at Westerly, R. I.

Location. Lat 41°23'01", long. 71°50'01", on left bank at Westerly, Washington County, 

2.1 miles downstream from Shunock River.

Drainage area.--295 sq mi.

Records available.--November 1940 to September 1951.

Sage. Water-stage recorder. Altitude of gage is mean sea level{from topographic map).

Average discharge. 11 years, 489 cfs {adjusted for diversion).

Extremes.--Maximum discharge during year, 1,930 cfs Apr. 4 (gage height, 6.82 ft); maximum gage height, 8.94 ft Nov. 25 (backwater from tide); minimum daily discharge, 54 cfs 

Oct. 7, 8, Nov. 4.

1940-51: Maximum discharge, 2,560 cfs Mar. 20, 1948 (gage height, 7.35 ft); maximum 

gage height, 9.32 ft Sept. 14, 1944 (backwater from tide); minimum daily discharge, 25 

cfs Aug. 17, 1941.

Flood in March 1936 reached a discharge of 3,150 cfs, by computation of flow over 

dam 1-| miles above station. Maximum stage known, 15.0 ft Sept. 21, 1938 (due to hurricane tidal wave), from information by local residents.

Remarks. Records good. Regulation at low flow by mills above station. Diversion above 

station for municipal supply of Westerly.

Revisions. W 1051: Drainage area.

Discharge, in cubic feet pe nd, 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

(t)

Oct.

61

61

110

125

79

61

54

54

61

*137

137

134

137

140

168

168

125

107

91

122

111

74

79

104

137

86

84

144

72

77

74

3,234

104

42.8

Nov.

138

84

66

54

162

237

*207

199

229

131

151

137

134

131

84

74

93

184

84

86

276

452

433

396

378

578

802

788

683

578

-

8,029

268

38.0

Dec.

498

396

332

*354

459

466

440

433

524

557

537

498

459

414

384

338

332

344

327

305

290

215

195

242

265

290

275

260

275

498

620

11,822

381

40.8

Jan.

634

571

524

*511

498

446

426

518

504

426

396

408

396

396

676

934

888

795

732

662

606

571

492

571

876

960

869

788

739

704

634

19,151

618

41.5

Feb.

690

1,04O

1,140

1,030

992

*908

888

1,220

1,230

1,140

1,060

980

908

882

850

795

732

902

,120

,140

,070

,120

,160

,100

,020

954

876

823

-

-

-

27,770

992

37.1

Mar.

781

760

753

767

843

856

823

*788

753

704

669

655

620

669

888

934

869

809

753

928

1,320

1,590

1,370

1,330

1,210

1,100

992

928

882

902

1,140

28,186

909

40.2

Apr.

1,330

1,300

1,580

1.900

*1,810

1,680

1,480

1,300

1,170

1,060

1,020

980

973

954

914

862

850

823

781

739

697

676

781

980

986

914

823

760

725

704

-

31,552

1,052

40.5

May

655

*613

585

557

518

504

492

466

452

446

485

690

767

697

606

550

498

452

420

408

414

420

396

578

795

882

862

1,020

1.070

al,000

aeeo

19,178

619

46.0

June

aeoo

a720

a660

a610

*a57O

524

485

440

396

378

390

378

349

402

518

564

585

564

518

472

433

396

366

372

396

378

372

322

316

505

-

13,979

466

48.5

July

242

280

270

246

270

246

233

224

199

199

*154

195

220

195

158

154

207

220

134

188

220

176

172

192

176

165

154

84

84

140

165

5,962

192

61.4

Aug.

215

215

*176

102

89

119

148

172

154

125

131

91

113

122

148

165

207

151

154

188

180

140

116

107

97

110

122

125

102

102

99

4,285

138

57.6

Sept.

84

119

102

125

144

*134

134

125

89

119

148

110

134

113

94

81

110

134

116

119

107

70

94

137

195

140

122

131

81

70

-

3,481

116

49.5

Adjusted for diversion

Mean

Cfsm

106 

0.359 

O.42

270 

0.915 

1.02

Calendar year 1950: 

Water year 1950-51:

383 

1.30 

1.50

620 

2.10 

2.42

994 

3.37 

3.51

911 

3.09 

3.56

1,054 

3.57 

3.99

621 

2.11 

2.43

Observed

Max 1,430 Min 54 Mean 413 

Max 1,900 Mln 54 Mean 484

468 

1.59 

1.77

195 

0.661 

0.76

141 

0.478 

0.55

119 

0.403 

0.45

Adjusted

Mean 415 Cfsm 1.41 In. 19.11 

Mean 486 Cfsm 1.65 In. 22.38

* Discharge measurement made on this day.

t Diversion, in millions of gallons, for municipal supply of Westerly.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records, 

recorded range In stage, and records for Pawcatuck River at Wood River Junction and Wood River at 

Hope Valley.
POQUONGCK RIVER BASIN

Great Erool: at Poquonock Bridge, Conn.

Location.--Lat 41 0 20'57", long. 7L°OC I 17", in mid-channel on upstream side of weir-gate 

structure, 300 ft downstream from Groton Reservoir dam, a quarter of a mile upstream 

from highway bridge on 0. S. Highway 1 at head of Poquonock River, a quarter of a mile 

northwest of Poquonock Bridge, Mew London County, and 2.3 miles east of Groton.

Drainage area.--14.3 sq mi.

Records available.--January 1946 to September 1951.

Gage.--Point gage and three sharp-crested weirs to measure wastage; gage read three times 

iTaily. Venturi meters at filter plant to measure diversion and wash water. Staff 

gages on Groton Reservoir and Smith Lake to determine changes in contents. Altitude 

of point gage is 5 ft (from topographic map).

Average discliarge.--5 years, 22.5 cfs.

Remarks. --Records adjusted for change in contents in Groton Reservoir and Smith La lie, and 

include diversion and wastage for water supply of borough of Groton.

Runoff

(millions c

gallons) Millions 

of gallons

Millions 

of gallons

Runoff

in 

Inches

January....

February... 

March......

April......

May........

June .......

July....;..

August .....

September..

Water yea

926. 

1,058.

1.87

1.24

.427

.459
THAMES RIVER BASIN 145

Willimantic River near South Coventry, Conn.

Location.--Lat 41°45'02", long. 72°15'5b", on left bank 700 ft upstream from highway

bridge, 1 mile downstream from Mill Brook, 2.4 miles southeast of South Coventry, Tolland Comity, 2.8 miles upstream from Hop River, and at mile 6.3.

Drainage area.--121 sq mi.

Records available.--September 1931 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 239.05 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--30 years, 203 cfs.

Extremes.--Maximum discharge during year, 2,240 cfs Feb. 8 (gage height, 8.25 ft); minimum,

 4.3 cfs Oct. 2 (gage height, 1.70 ft): minimum daily, 5.4 cfs Sept. 30.

1931-51: Maximum discharge, 15,500 cfs Sept. 21, 1938 (gage height, 18.03 ft, from 

floodmarks), by computation of flow over dam at Eagleville, 3 miles above station, prior 

to its failure', adjusted for flow from Intervening area; minimum, 2.0 cfs Aug. 21, 22, 

1949 (gage height, 1.60 ft); minimum daily, 2.5 cfs Sept. 18, 1949.

Revisions.--The figures of maximum and minimum discharges for some water years have 

been revised as shown in the following table. They supersede those published in the 

water-supply papers indicated.

Water 

year

Gage 

height 

(feet)

Discharge 

(cfs)

Remarks.--Recorda excellent except those for periods of ice effect, which are good. Flow

regulated by mills and reservoirs above station.

Revisions (water yeare).--W 761: 1934(m), drainage area. W 851: 1935-36. Revised figyeari 1933-34, 1937, 1939-43, are given herewith. They

1940-41 

Feb. 8....

Cfs-days

February 1941.........

Water year 1940-41., 

Calendar year 1941..

377

977

,684.7 

,149

,332

39.7

53.4

195

0.328

.441

1.61

219

186

1.81

1.54

2.25

1.24

1. 10

550

34.7

154

186

24.61

20.84

27. 4U

4.14

29.10

27.06

27.74

2.34

16.76

14.86
THAMES RIVER BASIN

Willimantic River near South Coventry, Conn.--Continued 

Discharge, in cubic feet per second, water year October 1938 to September 1939

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cf sm

In.

Oct.

480

414

389

348

323

299

285

263

240

248

240

242

224

226

210

210

218

200

196

196

234

222

187

235

430

355

263

222

204

181

181

8,165

263

2 .17

2.50

liov.

187

176

183

181

146

153

164

169

203

250

210

164

133

176

179

167

178

230

226

592

342

272

228

202

189

224

214

224

228

241

-

6,241

203

1.72

1.92

Dec.

234

204

187

376

639

1,510

1,550

757

*620

602

620

535

460

405

368

297

272

276

283

*292

274

bZ60

b220

b220

204

179

229

b220

b220

207

ISO

12,880

415

5.45

5.95

Jan.

146

166

205

a!90

alSO

a5 60

a650

a420

*a500

281

295

265

252

250

177

b200

b!90

198

198

202

177

175

b200

b!80

b!70

b!70

tl50

b!40

112

175

220

6,950

224

1.85

2.15

Feb.

b!90

blSO

199

283

b240

b220

b!90

blSO

179

174

217

323

240

226

615

1.580

598

559

527

*428

602

460

506

285

250

485

975

705

-

-

-

10,808

586

3.19

3.52

Mar.

1,200

750

460

577

368

490

550

571

542

511

268

261

511

281

276

625

655

490

576

584

328

311

285

548

475

550

585

585

525

525

672

14,335

462

3.82

4.40

Apr.

522

1,020

1,120

*672

505

476

1.180

818

585

535

475

620

585

460

385

548

328

574

655

725

550

428

394

595

542

328

325

520

280

256

-

16,204

540

4.46

4.98

May

281

255

222

216

210

152

170

208

204

206

196

189

104

H31

160

162

119

166

152

64

78

132

144

172

177

174

103

56

178

154

145

5,006

161

1.55

1.55

June

151

145

112

57

78

96

104

97

*94

62

17

86

95

96

108

111

107

24

75

112

84

60

51

52

12_

55

73

58

42

61

-

2,309

77.0

0.656

0.71

July

94

68

70

46

60

45

66

52

52

92

96

84

64

62

75

25

36

42

45

58

59

34

19

20

*52

27

27

50

50

18

27

1,492

48.1

0.598

0.46

Aug.

30

28

52

57

36

22

28

54

59

60

62

62

31

50

29

54

21

19

16

57

73

84

69

60

96

224

104

152

84

70

63

1,746

56.3

0.465

0.54

Sept.

56

51

32

13

44

50

56

60

130

101

153

155

46

49

*52

54

27

40

40

43

43

43

43

26

34

44

68

74

74

68

-

1,769

59.0

0.488

0.54

Calendar year 1938: Max 12,900 Min 15 Mean 373 Cfsm 3.08 In. 41.87

Water year 1938-39: Max 1,530 Min 12 Mean 241 Cfsm 1.99 In. 26.98

Pealc discharge (base, 9OO cfs). --Dec. 6 (12 p.m.) 1,940 cfs (7.98 f b) : Feb. 16 (4 a.m.) 2,100 cfs

(8.19 ft); Mar. 1 (5 p.m.) 1,280 cfs (7.01 ft); Apr. 2 (5 p.m.) 1,400 cfs (7.20 ft); Apr. 7 (5:30

n.) 1,250 cfs (6.97 ft) 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage 

and records for Shetuclcet River near Willimantic. 

b Stage-discharge relation affected by ice.
THAMES RIVER BASIN 147

Wlllimantic River near South Coventry, Conn. Continued

Discharge, in cubic feet per second, water year October 1939 to September 1940

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

67

95

165

169

102

88

67

48

54

76

73

66

58

38

25

34

48

42

11

14

50

67

68

67

70

74

74

73

51

89

512

2,335

75.3

0.622

0.72

Nov.

796

441

258

198

132

450

368

253

206

181

164

91

81

130

112

112

110

110

78

87

110

100

98

105

1U1

86

66

70

87

67

-

5,248

175

1.45

1.62

Dec.

77

97

442

380

240

187

138

*136

112

83

209

199

180

177

146

136

100

137

165

247

568

396

257

200

143

140

130

110

108

115

86

5,841

188

1.55

1.79

Jan.

95

95

90

90

90

85

65

80

85

80

78

76

75

70

1 , 950

1,050

584

300

210

170

135

140

135

120

105

110

105

90

95

90

*86

6,629

214

1.77

2.04

Feb.

88

86

84

66

87

90

120

140

136

147

175

276

220

190

120

150

160

150

125

135

130

130

120

115

85

105

110

110

110

-

-

3,760

13 U

1.07

1.15

Mar.

110

110

80

120

160

170

180

170

160

110

130

120

115

110

713

690

473

455

*526

619

614

497

397

317

287

254

246

264

311

476

1,850

10,834

349

2.88

3.32

Apr.

2 , 100

1,250

980

1,030

998

823

705

688

1,570

1,160

755

839

2,270

1,340

892

738

639

639

656

653

1,020

910

789

672

608

515

460

430

416

361

-

26,906

897

7.41

8.27

May

339

347

589

639

642

520

*416

355

320

296

244

240

261

242

233

231

256

299

254

261

244

264

299

286

222

205

240

227

212

122

163

10,068

325

2.69

3.10

June

2,460

1,160

665

460

416

386

294

216

212

311

416

361

299

238

170

214

227

205

199

212

227

131

126

179

209

261

299

266

252

247

-

11,338

378

3.12

3.48

July

229

193

181

180

504

210

125

160

170

141

100

221

279

191

169

163

132

*100

100

105

70

168

171

175

140

108

93

31

80

101

98

4,692

151

1.25

1.44

Aug.

93

94

58

25

62

87

91

96

88

28

23

48

57

49

49

49

42

21

42

47

51

50

56

43

22

47

54

55

54

*57

68

1,706

55.0

0.455

0.52

Sept.

22

19

44

55

62

64

63

53

52

51

45

46

47

42

33

47

47

41

38

37

25

21

31

37

47

47

60

78

30

52

1,336

44.5

0.366

0.41

Calendar year 1939: Max 1,380 

Water year 1939-40 : Max 2,480

Min 

Min 11 Me a

203

248

Cfsm 1.68 

Cfsm 2.05

In. 22.74

27.86

Peak discharge

(9.59 ft); Mar. 15 (6 p.m.) 1,090

p.m.) 1,880 cfs (8.15 ft); Apr. 13 (1 to 2 p.Itl'.)

(6.63 ft); June 1 (4to 5 a.m.) 3,140 cfs (9.42 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 26-28, Jan. 1-14, Jan. 18 to Feb. 8, Feb. 14 

to Mar. 14.
148 THAMES RIVER BASIN

Willimantie River near South Coventry, Conn.--Continued 

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

D~y

1

I

5

6

7

8

9

10

11

12

13

14

15

ie

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm 

In.

Cile

Oct.

10

34

40

42

45

43

12

5.9

36

83

36

101

175

129

31

103

92

90

67

46

44

14

41

43

52

83

61

58

8.3

35

*85

1,756.7

56.7

0.469 

O.E4

II ov .

67

44

40

47

64

170

128

103

9E

90

86

14

34

58

47

81

63

43

13

57

194

233

131

143

95

901

662

432

*337

275

-

4,777

159

1.31 

1.46

idar year 1950 : 1«

Der.

235

195

174

303

990

650

434

413

503

413

413

383

328

280

L56

232

L19

244

205

b!73

IE 9

156

142

133

b!95

b!90

b!60

b!40

b!9j

392

340

9,237

238

2.46 

2.84

lax 99

Jan.

b285

255

257

309

322

235

222

248

b210

b200

b!85

193

180

133

498

601

39E

*315

289

282

303

286

t£25

472

802

515

544

296

319

273

b210

9,638

311

2 .57 

2.96

Feb.

261

785

471

351

358

508

605

1,370

936

536

442

453

*45S

46y

412

338

304

808

724

499

449

955

853

E25

437

451

403

375

-

-

-

IE, 3 17

565

4.67 

4.86

J Min E.7

Bar.

349

335

314

308

394

368

373

360

326

272

240

285

259

359

E77

444

345

301

314

*61u

69H

507

444

485

490

444

352

324

329

412

1,560

13,174

425

3.51 

4 . 05

Apr.

1,230

750

1,220

1,590

855

645

521

464

460

410

394

419

435

374

332

332

328

303

280

284

242

215

424

487

374

326

288

231

226

*249

-

14.483

483

3.99 

4.45

Mean 185

May

233

209

189

182

156

148

174

173

157

173

195

337

300

254

2u5

180

165

154

122

1Z

145

142

145

366

446

304

258

485

362

248

227

6,931

224

1.85 

2.13

Cf sr

June

189

133

126

163

171

160

141

130

111

31

122

114

105

117

173

189

153

184

175

*151

133

113

65

87

158

130

110

103

120

115

-

3 ,972

132

1.09 

1.22

n 1.E3

July

103

106

94

77

83

85

75

58

112

92

66

56

46

13

7 .2

66

45

100

102

140

114

76

69

74

117

98

57

15

12

95

*65

2,318.2

74.8

0.618 

0.71

In. 2C

Aug.

28

*36

87

14

9.1

95

40

49

42

21

35

47

110

90

38

89

361

350

209

156

167

162

134

111

54

53

108

93

59

50

19

2,916.1

94.1

0.778 

0.90

.76

Sept.

9.3

10

59

128

93

93

86

11

6.1

86

86

42

45

28

9.1

9.3

92

92

60

74

19

23

38

97

59

58

60

10

9.6

5.4

-

1,497.8

49.9

0 . 412 

0.46

Witer year 1950-51: Max 1.S7J Min 5.4 Mean 237 Cfsra 1.96 In. 26.58

cfs (6.35 ft); Feb. 2 

(12 ra.) 99j cfs (6.05 

(7.66 ft); Apr. 3 (8:30 p.m.) 1,730 cfs (7.47 ft).

* Discharge measurement made jn this day.

b ctage-diecharge relation affected by ice.
THAMES RIVER BASIN 

Hop River near Columbia, Conn.

149

Location. Lat 41°43'39 , long. 72°18'10", on right bank 1,500 ft downstream from

abandoned mill and dam at village of Hop River, miles north 01 Columbia, Tolland

County, and 4.2 miles upstream Irom mouth.

Drainage area.--76.il sq mi.

Records available.--September 193: September 1951.

Gage.--Water-stage recorder. Datum of gage is 249.25 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Extremes.--Maximum discharge during year, 1,940 cfs Feb. 8 (gage height, 10.35 ft); minimum, 5.1 cfs Oct. 3, 4; minimum daily, 5.6 cfs Sept. 22, 29; minimum gage height, 

2.59 ft July 18, 19.

1932-51: Maximum discharge, 6,450 cfs Sept. 21, 1938 (gage height, 16.25 ft, from 

floodmarks), by computation of flow over dam a quarter of a mile above station; minimum, 2.4 cfs Aug. 19, 1939 (gage height, £.55 ft); minimum daily, 2.6 cfs Aug. 28, 

1949; minimum gage height, 2.49 ft Aug. 3, 1936.

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

fair. Infrequent regulation at low flow.

Revisions. W 781: 1933(M), drainage area. W 1111: 1947(m).

Ratin

2 .6

2.8

3.2

3.8

g tables

height,

Oct. 1

4.7

15

40

96

, water 

in feel

to Feb.

4.8

6.0

7.0

9.1

year 1950-51,

8

240

470

720

1,420

except

2.6

2.8

3.2

3.8

periods of

Feb. e to

4.7

15

40

100

ice effect 

ier second)

Sept . 30

5.0

7.0

9.0

(gage

286

750

1,390

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

2

3

4

5

6

7

8

29

30

31

Total

Mean

Cf sm

In.

Oct.

7.9

7.4

6.3

6.9

6.9

7.4

7.4

7.9

7.9

14

15

24

42

38

32

29

26

25

42

40

40

39

37

40

40

39

37

37

36

*36

37

811.6

26.2

0.344

0.40

Nov.

35

34

33

39

81

85

67

60

56

52

48

46

35

23

21

21

21

21

2u

22

161

103

71

56

72

555

322

223

*174

134

-

2,691

89.7

1.18

1.32

Dec.

108

90

83

145

552

266

199

215

275

207

207

191

157

134

121

121

121

109

b87

b79

b79

bS9

65

75

90

85

75

70

170

280

2(30

4,705

152

1.39

2.29

Jan.

170

150

140

200

180

160

140 1'30

130

120

110

100

90

80

320

450

300

*215

207

215

207

154

134

336

490

293

207

174

164

141

126

6,033

195

2.56

2.95

Feb.

b!55

520

322

E23

188

162

316

1,590

581

192

286

250

*268

305

250

EOS

192

636

462

345

296

812

588

365

E96

E59

242

224

-

-

-

10,333

369

4.84

5.04

Mar.

*EOO

195

184

187

E42

250

233

216

182

156

140

134

127

239

425

277

224

190

164

428

425

315

286

335

286

224

187

170

172

242

1,260

8,315

268

3.52

4.06

Apr.

732

462

923

900

525

375

305

259

233

208

198

197

216

200

180

160

166

151

140

141

127

118

248

259

198

181

156

136

127

120

-

8,341

278

3.65

4.07

May

104

*96

87

80

77

73

69

66

61

62

86

224

164

123

101

86

72

62

57

54

54

50

46

22]

259

157

160

315

200

153

121

3,540

114

1.50

1.73

June

94

75

65

60

74

70

57

47

42

37

34

30

28

42

81

73

65

126

*84

60

47

40

37

37

30

26

24

23

24

29

-

1,561

52.0

0.682

0.76

July

28

26

23

20

27

26

22

17

16

14

12

12

13

12

11

10

10

6.0

6.5

10

12

12

14

12

11

10

9.5

9.0

11

11

*9.0

442.0

14.3

O.188

0.22

Aug.

10

10

8.4

8.4

7.9

6.9

6.5

675

6.9

7.4

12

9.5

20

20

15

17

51

86

68

50

41

44

34

31

27

22

17

15

12

10

9.0

689.8

22.3

0.293

0.34

Sept.

10

17

T5

15

12

11

11

10

9.5

9.0

9.0

9.0

7.4

6.9

7.4

10

8.4

*7.4

7.4

6.5

6.0

5.6

6.5

6.5

6.0

6.5

6.9

6.5

5.6

6.0

-

261.0

8.70

0.114

0.13

Calendar year 1950: Max 587 Mln 4.7 Mean 93.0 Cfsm 1.22 In. 16.55

Water year 1950-51: Max 1,390 Mln 5.6 Mean 131 Cfsm 1.72 In. 23.31

Peak discharReJbase. 900 cfs). Feb. 8 (6 a.m.) 1,940 cfs (10.35 ft): Feb. 22 (3 p.m.) 1.020 cfs 

(7.88 ft); Mar. 31 (11:30 a.m.) 1,860 cfs (10.23 ft): Apr. 3 (8:30 p.m.) 1,580 cfs (9.50 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Dec. 23 to Jan. 17. Discharge estimated on basis of recorded range 

in stage and records for stations on nearby streams.
150 THAMES RIVER BASIN

Safford Brook near Woodstock Valley, Conn.

Location. Lat 41°55'35", long. 72°03'37", on right bank at downstream side of highway

bridge, 1,000 ft downstream from Bradford Brook, 1,300 ft upstream from mouth, 1.2

miles southeast of Woodstock Valley, Windham County, and 2 miles southwest of West Woodstock.

Drainage area.--4.08 sq mi.

Records available. June 1950 to September 1951. 

Gage.--Water-stage recorder. Datum of gage is 522.92 ft above mean sea level, datum of

1929. 

Extremes.--;1950: Maximum discharge observed during period June to September, 57 cfs Aug.

20 (gage height, 2.99 ft); minimum daily, 0.3 cfs Aug. 17.

1950-51: Maximum discharge during water year, 390 cfs Feb. 7 (gage height, 5.31 ft);

minimum, 0.25 cfs July 15, 16 (gage height, 1.22 ft). 

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

which are fair.

Discharge, In cubic feet, per second 195O-51 

1950

Day

1

2

3

4

5

6

7

8

9

10

In. .

June

a!2

a21

a 10

a28

15

9.2

7.4

6.0

4.9

a4.0

July

1.0

.8

.1

- .3

.9

To

.8

.3

.1

.8

Aug.

1.3

*1.0

a. 9

a. 95

a. 7

a. 75

a. 6

a. 55

a. 5

a. 45

Sept.

*4.2

8.5

4.6

3.3

1.7

1.2

.85

.7

.65

.6

Day

11

12

13

14

15

16

17

18

19

20

June

a3.7

3.3

3.0

3.1

3.2

2.8

a!5

a6

3.7

3.3

July

a2.5

a2.0

a .6

a .4

a .2

a .1

a .0

a. 9

a. 8

a. 75

Aug.

aO.5

a. 45

a. 4

a. 35

a. 35

a. 35

a. 3

a. 35

a. 4

24

Sept.

0.65

1.0

.95

.75

.7

.6

.55

.5

.45

.45

Day

21

22

23

24

25

26

27

28

29

30

31

June

5.0

3.8

3.1

2.8

2.8

2.3

2.5

*2.5

1.8

1.2

-

1.75

July

aO.85

a. 7

a. 6

a. 55

a. 5

a. 45

a. 45

a. 45

a. 7

a. 45

a. 45

0.40

Aug.

13

3.2

1.9

1.4

1.2

.95

.8

.65

.75

1.2

1.2

0.485

0.56

Sept .

*0.45

.45

.45

.45

.45

.45

.45

.45

.45

.45

-

0.34

Peak discharge (base. 120 efs). Ho peak above the base. 

* Discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records, engineer's note 

records for Mount Hope River near Warrenville.

1950-51

Day

1

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

Oct.

0.45

.45

.45 

.45

.45

.45

.45

.5

.5

2.4

2.3

2.9

278

1.6

1.2

1.0

.95 

.85

.8

.8

.75

.7

.8

.95

.85

.85

.8

.75

.75

.75

*.7S

30.45

0.982

0.241

0.28

Nov.

0.75

'.75 

1.1

11.0

5.2

2.5

1.9

1.6

1.4

1.3

1.2

1.1

1.0

.95

.95

1.0 

1.1

1.0

1.1

19.0

7.2

3.5

2.8

17.0

88.0

22.0

15.0

14.0

*8.8

-

234.95

7.83

1.92

2.14

Dec.

7.O

5.5

5.2 

29

49_

16

10

a 15

a20

a!3

a!3

*alO

a9

a7

a6

a6

a6

a5

a4.5

a4

a3.5

a3

a3.5

a4

a4

a3

a2.5

a2.5

a9

a35

a20

330.2

10.7

2.62

3.02

Jan.

a!8

alO

alO 

a!5

a9

a7

a6.5

a6

a5.5

a5.2

*a5

4.8

4.5

a55~ b4.1

a35

al5 

alO

10

13

b!5

blO

b8. 5

39

30

b!5

blO

b8.5

b7

b6.5

b5.5

403.6

13.0

3.19

3.68

Feb.

blO

54

b!6 

b9.5

b6.5

b6.0

84

102

532

a!8

a!3

all

a9.5

9.3

*b7.6

b6.2

b5.8 

*62 

20

13

13

*54

22

b!3

10

9.3

9.6

8.7

_

_

-

635.0

22.7

5.56

5.79

Mar.

7.4

7.4

b7.5 

8.5

14

14

12

11

8.7

b7.5

6.2

6.8

6.6

26

28

14

11 

8.9

*7.8

*55

28

21

18

22

15

11

8.9

8.2

10

16

80

506.4

16.3

4.00

4.61

Apr.

28

18

1O4 

42

22

15

12

10

'8.5 9.3

14

14

14

10

8.5

7.4

7.4 

6.6

6.2

S.6

5.5

20~~ 5.1

12

8.7

7.8

6.6

5.8

5.5

5.1

-

445.6

14.9

3.65

4.07

May

4.3

3.8

3.4 

3.3

3.1

2.8

2.7

2.5

2.4

2.5

7.1

16

7.2

4.6

3.6

2.9

2.5 

2.3

2.3

2.1

2.1

1.9

1.7

45

21

8.9

11

20

8.9

6.2

4.8

212.9

6.87

1.68

1.94

June

3.4

2.8

2.5 

2.5

3.8

2.8

2.0

1.7

1.4

1.3

1.2

1.2

1.0

4.4

*10

6.6

7.6 

14

5.8

3.3

2.4

2.0

2.1

3.8

2.2

1.6

1.3

1.4

1.5

1.7

-

99.3

3.31

0.811

0.90

July

1.7

1.5

1.1

.95

1.3

1.2

.95

.65

.5

.5

.45

.45

.5

.4

-.3.

13.0

7.1 

2.6

16.0

11.0

3.1

1.9

al.2

a. 9

a. 7

a. 65

a. 6

a. 8

al.3

*a.7

.95

74.95

2.42

0.593

0.68

Aug.

2.0

1.5

.95 

.95

.7

.5

.45

.5

.65

a. 55

al.S

al.2

a3.5

al.S

al.O

a5.0

a30.0 

alO.O

a5.0

a5.0

alO.O

6.8

3.1

*2.0

1.7

1.4

1.3

1.2

1.1

1.0

.8

102.85

3.32

0.814

0.94

Sept.

0.8

2.8

4.0 

573

1.4

1.5

2.6

1.8

1.2

1.0

.8

.75

.65

.6

.6

.65

.55 

.5

.5

.4

.4

.4

.6

.55

.5

*.55

.5

.45

.4

.55

~

30.10

1.00

0.245

0.27

Calendar year 1950: Max - Min - Mean - Cfsm - In.

Water year 1950-51: Max 104 Min 0.3 Mean 8.51 Cfsm 2.09 In. 28.32

(5.31 ft)

* Discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of recorded range in stage, weather records, 

 ngineer's notes, and records for Mount Hope River near Warrenville. 

b Stage-discharge Stage-discharge relation relation affected affected by ice.

Note.--Shifting-control method used June 5-21, 1950.
THAMES RIVER BASIN 151

Mount Hope River near Warrenville, Conn.

Location.--Lat 41°50'37", long. 72°10'10", on left bank 250 ft downstream from Knowlton 

Brook, 700 ft upstream from bridge on Connecticut Highway 89, ijj miles south of 

Warrenville, Windham County, and S-j miles southwest of Ashford.

Drainage area.--29.1 sq mi.

Records available. July 1940 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 335.57 ft above mean sea level, datum of 

1929.

Average discharge.--11 years, 44.7 cfs.

Extremes.--Maximum discharge during year, 1,170 cfs Feb. 7 (gage height, 7.79 ft), from 

rating curve extended above 420 cfs by logarithmic plotting; minimum, 2.8 cfs Sept. 

30; minimum gage height, 1.13 ft Sept. 29, 30.

1940-51: Maximum discharge, that of Feb. 7, 1951; minimum, 0.8 cfs Sept. 27, 28, 

1943.

Flood of September 1938 reached a stage of about 14.5 ft, from floodmarks.

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)

Oct. 1 to

1.1

1.2

1.3

1.5

 Feb. 7

2.6

5.3

9.6

21

1.1

1.2

1.4

1.6

Feb. 8 to

2.6

5.4

13.5

25

Sept. 30

2.0

2.5

3.0

5.7

59

116

186

646

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

Total

Mean

Cf SIR

In.

Oct.

4

3.8

3.8

4.1

4.1

4.1

4.1

4.4

4.7

17

20

21

25

15

11

9.6

8.1

7 .2

7.2

6.8

6.0

5.6

6.8

8.1

7.6

6.8

6.0

5.6

6.4

6.8

6.0

256.7

8.28

0.285

0.33

Nov.

5.6

5.3

5.6

7.4

47

28

19

15

13

12

10

8.6

8.1

b7

b7

7

7.5

7.5

7

8

85

60

30

25

70

330

140

90

65

*55

-

1,185.6

39.5

1.36

1.52

Der.

45

40

37

94

243

97

70

83

113

76

75

68

56

49

45

46

46

40

b36

b30

b28

27

29

31

b35

b24

22

21

b60

166

122

1,954

63.0

2.16

2.49

Jan.

113

73

71

87

70

b52

49

b46

b43

b40

*b35

b35

b32

b30

b255

196

blOO

79

75

83

86

b73

b66

212

184

110

b86

bBl

b71

b60

b55

2,628

84.8

2.91

3.36

Feb.

bSl

261

118

90

75

67

282

629

240

160

120

103

102

*98

84

b76

b65

306

158

108

105

307

168

116

95

88

84

77

-

_

-

4,263

152

5.22

5.44

Mar.

68

69

68

71

91

89

81

74

65

b58

b54

53

50

111

137

90

73

65

*56

247

164

126

115

128

102

82

72

68

74

99

445

3,147

102

3.51

4.05

Apr.

210

139

452

309

174

130

111

98

90

82

92

93

96

81

71

65

65

59

56

60

51

48

120

92

72

*66

57

51

50

48

-

3,188

106

3.64

4.07

May

42

39

36

34

31

29

28

26

25

25

53

101

57

41

34

30

ee

24

24

23

23

21

19

150

104

60

63

102

60

47

38

1,415

45.6

1.57

1.81

June

31

26

25

24

33

26

21

17

16

14

14

13

11

29

37

30

23

49

32

*22

17

16

15

23

17

14

13

22

17

20

-

667

22.2

0.763

0.85

July

16

14

11

8.3

14

11

9

7

6

5

5

4.5

5

4.5

5.5

40

30

18

50

35

20

11

8

6.5

5.5

5

5

14

13

*12

*11

407 . 8

13,2

0.454

0.52

Aug.

15

14

9.4

10

7.9

6.9

5.0

5.0

5.4

5.7

9.0

7.9

16

8.7

7.2

21

146

66

32

31

57

40

22

16

14

12

11

9.4

8.7

7.9

7.2

634.3

20.5

0.704

0.81

Sept.

6.9

15

20

14

9.4

8.7

11

10

7.9

7.2

6.1

6.1

5.7

5.4

5.4

6.1

4.7

4.1

3.6

3.3

3.1

3~6 2.8

4.7

4.1

*5.0

4.1

3.6

3.1

2.8

-

197.5

6.58

0.226

0.25

Calendar year 1950: Max 421 Min 2.2 Mean 44.6 Cfsra 1.53 In. 20.83

Water year 1950-51: Max 629 Min 2.8 Mean 54.6 Cfsra 1.88 In. 25.50

Peak discharge (base. 40O cfs). --Nov. 26 (time unknown) 452 cfs (4.65 ft); Dec. 4 (12 p.m.) 426 

cfs (4.47 ft); Jan. 15 (5 p.m.) 435 cfs (4.51 ft); Feb. 7 (12 p.m.) 1,170 cfs (7.79 ft); Feb. 18 

(7 a.m.) 435 cfs (4.51 ft); Feb. 22 (8 a.m.) 401 cfs (4.31 ft); Mar. 20 (12:30 p.m.) 418 cfs (4.38 

ft); Mar. 31 (6 a.m.) 609 cfs (5.54 ft); Apr. 3 (2:30 p.m.) 704 cfs (6.01 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Oct. 1, Nov. 16-30, De 

estimated on basis of recorded range In stage, weathe 

Willimantlc and Hop River near Columbia.

23, 27-28, Feb. 9-11, July 6-30; discharge 

records and records for Natchaug River at
THAMES RIVER BA3IM

Location.--Lat 41 0 43'14", long. 72°11'52", on right bank 200 ft downstream from Hew York, 

New Haven & Hartford Railroad bridge 500 ft upstream from bridge on U. S. Highway 6, 

1 mile northeast of Willimantic, Windhain County, 1.7 miles upstream from mouth and 

4 miles downstream from Mt. Hope River.

Drainage area. 169 sq mi.

Records available. October 1930 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 150.31 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--21 years, 289 cfs.

Extremes.--Maximum discharge during year, 3,090 cfs Feb. 5 (gage height, 8.36 ft); minimum, 3.9 cfs Sept. 23 (gage height, 2.03 ft); minimum daily, 5.1 cfs Sept. 12, 20.

1930-51: Maximum discharge, 32,000 cfs Sept. 21, 1938 (gage height, 16.39 ft, from 

floodmarks), by computation of peak flow over dam 2 miles above station; minimum, 

about 0.3 cfs Aug. 6, 1937; minimum daily discharge, 2.3 cfs Sept. 11, 12, 1943.

Remarks.--Records excellent except those for periods of ice effect, which are good. City 

of Willimantic diverts an average of about 1,000,000 gal of water a day for municipal 

supply from reservoir 2 miles above station. Operation of water wheels at this location causes diurnal fluctuation at low flow.

Rating table, wa 

height, in

year 1950-51, except 

st, and discharge, in

2.2 

2.4

2.4

a.a

ubia feet pe

3.0

5.0 

7.7

sffe

ond)

October 1950 to Septerabe

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

T

27

23

50

31

Total

Mean

Cfsra

In.

Cic t .

39

43

45

16

6.5

5.8

6.5

30

67

71

68

82

118

113

88

79

70

69

50

53

49

47

48

EO

50

49

49

50

16

40

*49

1,616.8

52.2

0.309

0.36

11 3V .

48

49

47

46

61

216

134

103

88

77

70

63

62

60

60

42

44

54

57

59

148

326

194

142

140

950

1,060

650

*502

384

-

5,936

198

1.17

1.30

Dee .

299

242

216

246

1.010

785

506

434

650

574

474

479

398

326

286

274

274

254

198

167

164

158

184

184

b210

b!50

134

128

184

502

506

10,596

342

2.02

2.33

Jan.

425

322

286

4O7

470

358

312

b270

b235

232

220

239

212

b!90

505

1,130

695

*546

452

461

484

380

294

562

1,250

808

533

b420

434

394

258

13,764

444

2.63

3.03

Feb.

297

962

886

560

497

b400

553

2.580

2,390

1,150

695

618

*596

623

551

438

425

1,060

1,280

785

636

1,100

1,280

808

641

569

533

502

-

-

-

23,415

836

4.95

5.16

Mar.

461

430

434

430

524

564

515

488

434

371

335

335

322

402

905

695

538

456

398

709

*1,280

880

740

762

718

587

497

452

434

E69

1,320

17j985

580

3.43

3.95

Apr.

1,730

1,100

1,430

2,350

1,700

1,100

830

718

650

582

556

592

587

564

492

443

434

398

371

380

348

312

490

695

510

*434

380

330

304

304

"

21,094

703

4.16

4.64

May

266

242

223

212

202

194

184

177

164

164

184

535

488

335

254

212

184

161

151

145

142

137

123

466

950

587

398

618

510

358

282

9,226

298

1.7b

2. ,3

June

231

188

164

161

180

188

148

124

110

100

96

91

~3Z 89

245

246

198

298

304

*197

147

120

107

127

140

105

108

93

99

99

'

4,595

155

0.9U5

1.01

July

105

92

84

71

69

68

68

65

68

63

55

13

17

7.4

62

48

199

161

107

288

190

116

90

*79

71

57

41

6.5

75

71

37

2,519.9

81.5

0.481

' 0.55

Aug.

70

21

73

75

14

66

15

24

5.8

62

74

72

69

69

72

76

556

484

266

151

271

278

177

120

97

75

71

67

69

72

20

3,411.8

110

n.651

0.75

Sept.

66

17

61

81

79

71

69

64

66

68

12

5.1

64

16

66

17

8.8

67

26

5.1

69

16

6.5

64

28

18

14

11

81

17

~

1,253.5

41.8

0.247

0.23

Calendar year 1950: Max 1,460 

Water year 1950-51: Max 2,580 316 l.E In. 25.39

Peak discharge (base, 1,BOO cfs).--Peb . 

fs (6.69 ft); Apr. 4 (9 a.m.) 2,450 cfs ( 

* Discharge measurement made on this day 

b Stage-discharge relation affected by i

:30 p.m.) 3,090 cfs (8.36 ft); Mar. 31 (11 p.m.) 2,030 

ft).
THAMES RIVER BASIN 

Shetucket River near Willimantio, Conn.

153

Location. Lat 41°42'01", long. 72° 10'57", on right bank at downstream side of Bingham 

Bridge, 5UO ft upstream from New York, New Haven & Hartford Railroad bridge, 500 ft 

downstream from Potash Brook, 1.3 miles downstream from confluence of Willimantic and 

Natchaug Rivers, 1^ miles southeast of Willimantic, Windham County, and at mile 16.5.

Drainage area.--401 sq mi.

Records available.--April 1904 to December 1905 (fragmentary). November 1919 to September 

1921 and September 1928 to September 1933 (published as "at South Windham"), October 

1933 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 131.40 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers). April 1904 to December 1905 chain gage at about 

same site at different datum. November 1919 to September 1921 and September 1928 to 

September 1933, at site 1-| miles downstream at different datum.

Average discharge.--24 years (1920-21, 1928-51) 669 cfs.

Extremes. Maximum discharge during year, 7,010 efs Feb. 8 (gage height, 9.90 ft); minimum, 

32 cfs Sept. 30 (gage height, 1.43 ft); minimum daily, 51 cfs Oct. 8.

1904-5, 1919-21, 1928-51: Maximum discharge, 52,200 efs Sept. 21, 1938 (gage height, 

27.6 ft, from floodmarks), from rating curve extended above 11,000 cfs on basis of computation of peak flow over Scotland and Baltic Dams, 5 and 9 miles downstream, respectively, adjusted for flow from intervening area; minimum, 15 cfs Aug. 29, 1949 (gage 

height, 1.34 ft); minimum daily, 19 cfs Aug. 22, Oct. 24, 1949; minimum gage height, 

1.32 ft Oct. 20. 1935.

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

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

papers indicated.

Water-Supply 

Paper

Water 

year

s,e height 

(feet)

Discharge 

(efs)

165.

501.

711.

726.

756.

781.

821.

Apr. 6

Mar. 14

Mar. 30

Mar. 29

Mar. 6

Jan. 10

Dee. 20

Remarks.--Records excellent except those for periods of ice effect or no gage-height

record, which are good. Flow regulated by mills on Willimantic River and on Natchaug 

River by pumping for municipal supply of city of Willimantic.

Revisions (water years). W "81: 1934(m). W 801: 1935. Revised figures of discharge for 

the water years 1920-21, 1931-32, superseding those published in Water-Supply Papers 

501, 521, 711, 726, are given herewith.

1919-EO 

Mar. 14 .....

15.....

16. ....

17. ....

18. ....

19.....

Discharge

9,500

5,140

3,640

6,470

7,100

4,570

 b900

Day 

(water year)

Discharge 

(cfs)

t850 

t800 

bl,400 

bl,500 

bl,30U 

bl,20U 

bl.OOO

Day 

(water year)

Discharge 

(cfs)

"b Stage-discharge relation affected by ice.

Calendar ytar 192u ..........

Disci

Maximum

9,500

mrge in cub

Minimum

74

Lc feet per

Mean

1,121

second

Per square

2.76

inches

37.55

1 59

°b 43

O - 54 - 11
THAMES RIVER BASIN 

Shetucket River near Wlllimantlc, Conn.

Discharge, In cubic feet per second, water year October 1930 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

30

31

Ibtal

Mean

Cfsm

In.

Oct.

90

80

80

70

50

70

65

65

60

70

60

40

65

60

70

65

60

55

50

60

65

70

60

65

55

70

60

70

88

125

157

2,170

70.0

0.172

0.20

Nov.

115

110

150

125

120

110

120

120

110

110

115

125

120

125

120

178

264

if

341

242

222

203

200

185

245

176

207

140

95

-

5,313

177

0.436

0.49

Dec.

223

296

190

175

224

125

105

*245

155

195

190

160

140

125

145

125

135

135 

120

130

110

115

125

135

115

135

b220

236

250

241

241

5,261

170

0.419

0.48

Jan.

182

203

b!60

207

186

b340

478

b360

b340

286

232

261

b320

b320

b280

b240

b240

207 

260

b260

b280

b240

254

b220

bl50

227

b!90

237

231

b200

b!60

7,751

250

0.616

0.71

Feb.

b200

b200

b200

b!50

b220

biao

b!40

b200

b240

b220

b240

b240

b240

b400

b380

b400

b400

b500 

b750

b750

b550

b500

480

505

487

470

522

517

_

_

-

10,281

367

0.904

0.94

Mar.

502

520

590

600

543

500

472

682

2,890

2,450

1,610

1,260

1,180

1,020

1,110

1,040

1,070

880 

1,020

*1,180

1,180

1,340

1,380

1,430

1,520

2,160

2,110

1,680

2,450

4.690

2,810

43,869

1,415

3.49

4.02

Apr.

2,110

2.690

*2,110

1,750

1,610

1,380

1,300

1,440

1,210

1,130

984

952

868

111

706

654

587

605

580

529

520

501

514

495

441

554

2,280

1,560

1,160

850

-

32,847

1,095

2.70

3.01

May

691

637

556

600

538

*506

486

505

,610

,480

,520

,430

,270

,200

,300

1,140

970

810 

700

680

612

630

835

2.220

1,610

1,220

910

688

653

571

373

28,951

934

2.30

2.65

June

584

680

585

470

409

344

261

428

829

3,060

5.450

2,220

1,520

1,020

840

1,080

1,800

1,900 

1,210

850

617

504

475

430

414

364

370

256

26T

314

-

27,545

918

2.26

2.52

July

245

210

190

180

170

200

470

400

*335

320

300

230

200

230

210

210

190

190

160

150

140

130

140

150

130

120

130

120

120

120

110

6,200

200

0.493

0.57

Aug.

100

80

90

110

110

L10

110

110

90

120

130

370

862

*'BTS

404

356

246

260 

230

200

170

140

140

130

130

125

120

124

145

116

136

6,199

200

0.493

0.57

Sept.

114

117

152

153

129

117

109

122

96

90

85

80

*90

86

85

80

*80

85 

80

75

80

85

85

90

85

70

70

85

90

85

-

2,850

95.0

0.234

0.26

Calendar year 1930: Max 2,600 Mln 40 Mean 360 Cfsm 0.887 In. 12.04

Water year 1930-31: Max 4,690 Mln 40 Mean 491 Cfsm 1.21 In. 16.42

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--Stage-discharge relation indefinite because of varying backwater from powerplant downstream 

Oct. 1-30, Nov. 1-15, 24, 25, 29, 30, Dec. 3, 4, 6-26, July 1 to Aug. 11, Aug. 19-26, Sept. 10-30; 

discharge estimated on basis of summation of flows of tributary streams.
THAMES RIVER BASIN

Shetucket River near Willimantic, Conn.--Continued 

Discharge, In cubic feet per second, water year October 1931 to September 1932

155

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

65

70

90

65

70

75

80

70

85

75

50

60

65

75

65

70

70

50

65

75

70

75

60

70

35

60 

70

65

85

90

100

2,170

70.0

0.172

0.20

Nov.

75

110

90

~120

70

75

60

*70

100

90

95

80

85

55

90

90

95

90

95

105

75

105

105

100

55

110

80

50

60

-

2,550

85.0

0.209

0.23

Dec.

95

85

85

80.

308

220

125

95

120

125

140

145

219

322

340

200

160

180

170

90

.125

185

360

422

349

330 

199

203

219

178

170

6,044

195

0.480

0.55

Jan.

!£i

260

352

278

*270

344

1,040

1 . 450

991

760

570

512

570

734

640

542

394

457

459

393

381

389

478

670

669

580 

584

964

830

723

840

18,228

588

1.45

1.67

Feb.

586

b550

484

495

b420

b460

473

521

624 eie

605

712

1,080

1,110

790

714

b550

b550

b540

b500

b350

b480

b450

b350

*b550

b360 

380

422

457

-

-

15,981

551

1.36

1.47

Mar.

478

445

537

609

560

530

1,040

1,220

843

705

605

522

463

b400

b400

b320

b400

b350

377

329

363

509

1)560

b580

565

552 

589

2,220

4.540

2,330

1,660

25,601

826

2.03

2.34

Apr.

2,570

2,330

1,700

1,340

1,110

1,050

940

850

815

805

862

1,700

5 , 060

1,850

1,380

1,140

1,080

910

805

746

692

662

585

509

536

545 

555

550

513

454

-

32,644

1,088

2.68

2.99

May

505

1.140

1,030

741

597

525

520

535

602

531

458

422

427

458

375

388

368

325

304

310

296

238

272

250

243

245 

390

400

285

207

239

13,626

440

1.08

1.24

June

245

236

232

224

153

199

167

184

184

176

211

138

182

219

190

*232

340

488

440

260

254

235

210

181

186

120 

172

173

252

220

-

6,703

223

0.549

0.61

July

160

221

224

180

190

180

170

160

140

90

100

90

80

85

80

60

50

55

60

60

55

55

60

65

65

60 

60

370

348

199

100

3,875

125

0.308

0.36

Aug.

110

TTo

95

250

350

200

110

120

130

150

461

640

393

177

120

140

150

110

722

845

341

215

292

246

*160

150 

110

130

200

170

200

7,597

245

0.603

0.70

Sept.

230

200

170

110

100

140

180

210

180

140

100

60

65

70

75

342

1.550

1,270

608

*487

368

269

231

180

110

150 

170

300

490

464

-

8,999

500

0.739

0.82

Calendar year 1931: Max 4,690 Mln 35 Mean 485 Cfsm 1.19 In.

Water year 1931-32: Max 4,540 Mln 35 Mean 393 Cfsm 0.968 In.

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. Stage-discharge relation affected by varying backwater from powerplant downstream Oct. 1 

toTJec. 4, Dec. 7-12, 16-22, July 1, 4-27, July 31 to Aug. 10, Aug. 15-18, Aug. 25 to Sept. 15, Sept. 

24-28; discharge estimated on basis of summation of flows of tributary streams.
THAMES RIVER BASIN 

Shetucket River near Willimantie, Conn.--Continued

Discharge, In ruble

I'ay

1

 ^

;

4

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

91

82

101

85

69

72

65

Si

86

167

162

155

567

512

196

206

206

197

186

159

*147

135

124

144

146

171

172

133

119

99

*161

4,563

147

0.367

0.42

11 3V.

176

144

136

146

235

523

380

299

272

251

257

183

182

192

162

157

167

146

144

120

464

800

490

398

388

2,280

2,590

1,480

*1,120

880

-

14,940

498

1.24

1.58

Dec.

715

600

516

667

2,590

1,960

1 , 240

1,120

1,540

1 , 300

1,180

1,150

970

820

720

695

680

675

565

446

b390

b380

b590

417

516

b400

b330

b550

493

1,240

1,180

26.215

846

2.11

2.43

Jan.

bl , 000

b800

735

1 , 050

1 . 090

820

a750

a700

a.650

aeuO

a550

a 500

a400

a 3 50

al,400

a2,600

al , 500

al,200

*1,060

1.090

1,090

940

720

1,280

2,940

1,920

1,240

1 , 000

1 , 050

940

650

52,555

1 , 050

2.62

5.02

Feb.

760

2,470

1 , 880

1,270

1,120

940

1,500

6 ,060

4,470

2,540

1,580

1 , 440

1,440

1 , 580

1 , 400

1,120

1,060

2,720

*3,040

1,920

1 , 580

2,950

3,540

2,000

1 , 580

1,480

1,540

1,240

-

_

-

55,420

1,979

4.94

5.14

Mar.

1,150

1,120

1,090

1,060

1 , 500

1,370

1,240

1.210

1,090

940

820

880

820

1,020

2,300

1,650

1,270

1,09O i , ooo

1,780

*2,750

1,830

1,620

1,720

1,650

1,570

1,150

1 , 06u

1,030

1,300

3--J2JJ

43,550

1,405

3.50

4.04

Apr.

4,400

2,660

5 , 500

5,550

3 , 540

2,590

1,880

1 . 580

1,480

1 , 500

1,240

1 , 500

1,570

1,270

1,090

1,050

1,050

940

880

880

820

725

1,180

1,650

1,210

1 , 060

940

795

750

*755

-

48,975

1,632

4.07

4.54

May

670

615

561

552

487

461

479

449

429

455

488

1,160

1 , 020

777

625

555

467

425

578

344

376

374

352

1 , 090

1.840

1,180

859

1,510

1,180

852

705

21,665

699

1.74

2.01

June

580

451

405

427

464

470

397

338

303

221

264

262

249

293

546

560

470

*657

646

472

568

512

254

278

362

295

268

251

257

287

-

11,407

580

0.948

1.06

July

265

254

228

200

200

209

194

155

198

195

145

98

104

68

96

119

267

274

258

457

555

251

187

*189

190

172

138

69

105

163

150

5,682

190

0.474

0.55

Aug.

151

86

162

141

6_6

127

110

95

75

115

128

148

186

202

166

185

702

960

611

402

499

552

402

291

216

175

195

197

169

*152

101

7,723

249

0.621

0.72

Sept.

104

78

122

235

206

197

192

141

104

148

129

90

119

94

95

64

94

175

116

90

116

65

73

147

116

*103

89

62

104

5j>

-

3,521

117

0.292

 0.55

Calendar year 1950: Max 5,240 Mln 51 Mean 574 Cfsm 1.45 In. 19.42

Water year 1950-51: Max 6,060 Mln 51 Mean 757 ffsm 1.89 In. 25.64

Peak discharge (base. 5 , 60C cfs). Feb. 8 (5 p.m.) 7.010 cfs (9.90 ft); Feb. 18 (9 p.m.) 3,740 cfs

(7.25 ft); Feb. 22 (11 p.m.) 5,960 (7.39 ft); Mar. 51 (10 p.m.) 5,570 cfs (8.85 ft); Apr. 4 (5 a.m.)

5,950 . ,_.._

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis 

and records for Quinebaug River at Jewett City, Conn.

b Stage-discharge relation affected by Ice.

of recorded range In stage, weather records,
THAMES RIVER EASIII

Location. --Lat 4;°i)4 l ^3", long. VJ'O-l'ilE'", on right ban!: 35fi ft upstream from highway 

bridge, 0.45 mile downstream from Breakneck Erook, 0.6 mile west of Westvllle, 

Worcester County, and if miles west of Southbridge.

Drainage-area.--93. £ 314 mi.

Extreme,, . - -Maximum aiacharge during year, I.UOO cfE Apr. 4 (gage height, (",.04 ft); miriimum daily, 17 cfs Oct. 'LI.

1M34-51: Maximum discharge, 1,500 .:fe Mar. 22, 1348 (gage height, C.93 ft); minimum daily, L.2 -fc June L>:, 1943.

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

4-19 

4P1

427

424

£44 

213 

19L 

17?

ir,4 

175 

189

154 

131 

llfi 

111 

117

165 

Itl

187

143

Total 

Me a

Gf 3

111

1.18

1 .52

Mean 123 

Mean 179
158 THAMES RIVER BASIN

Little River at Buffumville, Mass.

Location.--Lat 42°06'57", long. 71°53'26", on left bank 0.6 mile upstream from Boston &

Albany Railroad bridge, 0.6 mile upstream from mouth, 0.8 mile east of Buffumville,

Worcester County, and 1.5 miles west of Oxford. 

Drainage area.--27.7 sq mi.

Records available.--July 1939 to September 1951. 

Gage. Water-stage recorder. Datum of gage Is 457.00 ft above mean sea level, unadjusted

("levels by Corps of Engineers). 

Average discharge.--13 years, 40.9 cfs. 

Extremes. Maximum discharge during year, 520 cfs Feb. 8 (gage height, 5.37 ft); minimum,

0.9 cfs Sept. 22, 29, 30; minimum daily, 0.9 cfs Sept. 29, 30.

1939-51: Maximum discharge, that of Feb. 8, 1951; minimum, 0.5 cfs Nov. 28, 29,

1949, July 30, 1950; minimum daily, 0.5 cfs Nov. 28, 1943.

Revisions.--The figures of maximum discharge for the water years 1940 and 1948

have been revised to 516 cfs Apr. 13, 1940 (gage height, 5.35 ft) and 448 cfs Mar. 22,

1948 (gage height, 5.08 ft), superseding figures published in the Water-Supply Papers

891 and 1111, respectively.

Remarks.--Records good. Flow regulated by mill above station. 

Revisions.--Revised figures of discharge for high-water periods in the water years 1940

and 194S, superseding those published in Water-Supply Papers 891 and 1111, are given

herewith:

Day 

(water year)

1939-40

9. .....

Discharge 

(cfs)

387

Day 

(water year)

1939-40

Discharge 

(cfs)

Day 

(water year)

1947-48

23. ....

Discharge 

(efs)

375

Revised peak discharge. 1939-40: 

Apr. 13 (4:30 p.m.) 516 cfs. Apr p.m.) 428 cFs

Month

Water year 1939-40. . . 

Calendar year 1940...

Water year 1947-48... 

Calendar year 1948 . . .

Cfs-days

20,126.0 

19,570.6

19,411.2 

18,907.3

Maximum

468 

468

433

433

Minimum

102

.9 

1.2

1.4 

1.4

Mean

243

55.0 

53.5

153

53.0 

51.7

Per square 

mile

8.77

1.99 

1.93

5.52

1 .91 

1.87

Hunoff in 

inches

9.79

27.04 

26.30

6.39

26.06 

25.39

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

and discharge, in cubic feet per second) 

(Backwater from leaves Oct. 5, 6)

1.9 0.5

2.0 1.3

2.2 4.3

2.4 

2.7

3.0

3.5 

4.0 

4.5

198

309

428

478

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

Day

1

2

3

4

5

t

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

£5

26

27

28

29

30

31

Total

Mean

Cfsm

in.

Oct.

1.3

1.3

3.4

1.3

1.3

1.3

1.3

1.3

1.5

1.4

27

16

1.8

1.3

1.3

1.2 *T72"

1.6

26

14

1.4

1.4

1.4

3.2

1.3

2.0

26

32

1.3

6.8

1.3

184.9

5.96

0.215

0.25

Nov.

1.3

20

2.5

15

1.8

12

18

33

1.3

*1.2

16

1.3

4.6

1.9

30

18

1.2

2.3

16~1.1

31

36

1.4

25

30

127

175

109

72

52

856.9

28.6

1.03

1.15

Dec.

42

35

31

45

63

75

61

55

70

98

100

83

72

*61

58

43

37

58

57

53

24

26

21

14

15

44

53

44

44

39

i£

1,533

49.5

1.79

2.06

Jan. .

20

59

58

58

60

69

54

65

59

54

44

38

30

11

BE

94

*102

86

80

80

85

88

69

91

155

123

99

73

78

66

61

2,162

69.7

2.52

2.90

Feb.

61

94

103

95

86

69

110

470

320

166

112

*102

93

100

98

85

70

170

234

158

122

154

190

133

112

102

93

89

-

_

-

3,791

135

4.87

5.09

Mar.

83

76

66

72

83

80

83

82

78

.63

64

74

65

75

*100

104

85

78

81

116

151

135

116

110

116

114

92

82

78

83

173

2,863

92.4

3.34

3.84

Apr.

226

175

246

337

234

168

126

112

110

*93

87

80

80

71

75

79

68

64

63

63

42

57

82

82

80

75

68

52

58

68

3,221

107

3.86

4.32

May

61

60

48

49

11

2.2

46

23

*2.0

29

54

16

42

67

54

40

41

42

12

2.1

2.1

2.1

29

61

S3

97

83

112

112

88

82

1,462.5

47.2

1.70

1.96

June

63

27

36

58

60

51

16

13

11

2.1

29

41

*43

23

38

39

41

69

60

53

43

18

2.1

2.1

30

41

16

2.0

21

8.7

-

957.0

31.9

1 .15

1.28

July

1.8

2.9

16

1.7

6.8

15

1.7

1.5

30

14

1.7

2.2

15

11

1.4

*29

29

1.4

5.1

2.2

1.3

1.2

17

1.2

1.1

1.1

1.1

1.2

1.3

1.3

1.3

21U.5

7.05

0.255

0.29

Aug.

30

41

13

1.3

1.7

2.0

2.6

1.3

1.3

1.8

2.0

2.0

5.6

27

24

*1.8

14

7.2

19

42

68

58

54

50

15

1.4

25

25

1.3

1.2

672

545.7

17.6

0.635

0.73

Sept.

1.3

3.8

22

31

40

40

40

11

1.2

11

2.3

1.9

1.2

*2.3

1.3

1.3

23

37

27

1.0

1.0

1.0

1.1

9.7

18

4.6

8.6

3.7

.9

.9

-

349.1

11.6

0.419

0.47

Calendar year 195O: Max 193 Min 1.1 Mean 36.9 Cfsm 1.33 In. 18.08

Water year 1950-51: Max 470 Min 0.9 Mean 49.7 Cfsm 1.79 In. 24.34

Discharge measurement made on this day.
THAMES RIVER BASIN 

French River at Webster, Mass.

159

Location.--Lat 42°03'03", long. 71°53'08", on right bank 50 ft upstream from Pleasant

 Street Bridge at Webster, Worcester County, and 1.1 miles upstream from Potash Brook.

Drainage area.--85.3 sq mi.

Records available.--December 1948 to September 1951.

Gage. Water-stage recorder. Datum of gage is 406.74 ft above mean sea level, datum of T939.

Extremes.--Maximum discharge during year, 942 efs Feb. 8 (gage height, 8.71 ft), from 

rating curve extended above E60 cfs by logarithmic plotting; minimum daily, 2.9 cfs 

Sept. 30.

1949-51: Maximum discharge, that of Feb. 8, 1951; minimum daily, that of Sept. 30, 

1951.

Maximum discharge known, 4,700 cfs Mar. 19, 1936, by computation of flow over dam 

about half a mile upstream.

Remarks.--Records good except those below 20 cfs and those for periods of no gage-height

 record, which are fair. Flow regulated by mills and by Lake Chaubunagungamaug (estimated usable capacity, 207,000,000 cu ft) and other smaller reservoirs above station.

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

cubic feet per second)

Oct. 1 to Nov. 26

4.0 2.3 . 4.7

4.1 4.8 5.0

4.2 8.6 5.B

4.4 20

Nov. 27 to June 13

4.5 

4.7

5.0

7.0 

8.2

296

530

818

June 13 to Sept. 30

3.85

3.9

4.0 

4.2

1.8 4.5 45

3.2 5.0 112

6.9 5.6 223

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

2B

29

30

31

Tota:

Mean

Cf sm

oct.

7.3

55

53

53

53

55

7.7

5.B

32

36

22

56

57

6.9

4.8

59

*5$

56

54

54

6.5

4.5 55"^

54

45

25

23

6.9

5.8

55

54

1,120.2

36.1

0.423

0.49

Nov.

55

55

54

6.9

7.0

53

54

55

*59

58

6.2

SB"5.4

57

55

56

54

7.3

6.5

53

60

57

14

65

81

253

448

SBIT

252

1B3

-

2,584.3

86 .1

1.01

1.13

Dec.

147

110

8E

113

166

188

175

163

160

192

212

5753"

185

165

147

*120

90

123

135

121

104

67

68

51

57

84

109

102

102

118

80

3,934

127

1.49

1.72

Jan.

80

124

146

175

183

180

163

171

165

160

154

139

126

91

206

309

*27B

*254

233

217

223

239

214

252

360

375

3TT

227

227

207

173

6,362

205

2.40

2.77

Feb.

196

3IT

307

285

272

237

307

813 550"

400

320

300

385

289

285

270

237

400

560

450

350

420

470

370

340

300

280

240

_

_

-

9,947

355

4.16

4.34

Mar.

220

2OO

180

190

210

E30

240

230

220

170

180

210

220

*230

245

263

225

186

190

265

376

410

5BT

334

327

334

296

256

242

242

370

7,855

253

2.97

3.42

Apr.

561

544

614

306 723-

568

458

394

366

331

*300

289

274

225

192

219

211

176

173

166

141

122

1ST

194

206

198

182

150

130

158

-

9,254

308

3.61

4.03

May

155

148

136

126

90

50

86

115

*82

77

127

139

98

145

153

113

109

101

75

44

80

70

77

188

244

274

244

272

296

5BT

239

4,420

143

1.68

1.93

June

195

126

100

130

153

133

102

83

96

58_

81

103

*115

139

156

172

151

215 ZT5"

197

153

121

76

62

93

112

104

85

77

78

-

3,677

123

1 .44

1.60

July

57

66

75

62

69

74

61

44

79

7T

69

65

63

14

11

64

*71

66

69

67

15

30

78

65

52

64

55

14

10

4T

45

1,696

54.7

0.641

0.74

Aug.

43

46

54

6.4

4.8

61

53

38

43

54

9.9

12

66

64

66

70

64

*9.9

28

115

154 135"

123

111

87

57

83

78

78

65

63

1,945.0

62.7

0.735

0.85

Sept.

6.9

60

71

88

84

96

99

SF

48

80

66

57

62

*5B

*22

36

73

64

66

60

62

6.8

4.6

65

61

55

45

44

5.8

2.9

-

1,617.0

53.9

0.632

0.70

Calendar year 1950: Max 475 Min 4.5 Mean 107 Cfsm 1.25 In. 16.99

Water year 1950-51; Max B13 Mln 2.9 Mean 149 Cfsm 1.75 In. 23.72

* Discharge measurement made on this day.

Note_.--No gage-height record Feb. 9-12, Feb. 18 to Mar. 14; 

charge measurement, weather records, recorded range In stage, 

Buffumvllle and Qulnebaug River at Westvllle.

discharge estimated on basis of 1 dlsand records for Little River at
THAMES RIVER BASIN

Quinebaug River at Quinebaug, Conn.

Location. Lat 42°01'20", long. 71°57'22", on right bank at Quinebaug, Windham County, 500

 ft upstream from bridge on State Highway 197, downstream from Massachusetts-Connecticut

State line, 7.8 miles upstream from French River, and at mile 46. 

Drainage area. 15V sq mi.

Records available.--September 1931 to September 1951. 

Gage.--Water-stage recorder. Datum of gage is 341.52 ft above mean sea level, datum of

 1929.

Average discharge. 20 years, 261 cfs.

Extremes.--Maximum and minimum discharges for the water years 1939-43, 1947, 1949, 1951 

are contained in the following table:

year

1936-39

1939-40

1940-41

1941-42

1942-43

1946-47

1948-49

1950-51

Maximum

Date

Feb. 15

Mar. 31

Feb . 8

Mar. 9

Dec. 31

Mar. 15

Jan. 6

Pet . 7

Discharge 

(cfs)

1,700

2,550

tl,210

2,110

1.34U

1,180

1,020

2,940

Gage height 

(feet)

5.33

a6 .55

4 65

5.73

b6. 09

4.36

4.25

6.74

Minimum

Date

July 4

Aug. 12

Oct. 7

Oct. 20

Sept . 9

Hov . IS,

Dec. 9,

16

July 12

July 9

Discharge 

(cfs)

tio

t4

3

3

1

6

1

1

Gage height 

(feet)

1.83

1.74

1.83

1.99

1.98

1.8V

1.&8

t Revised.

a Occurred Feb. 15 (ice jam), 

b Occurred Feb. 16 (ice jam).

1931-51: Maximum discharge, 14,100 cfs Sept. 21, 1938 (gage height, 16.21 ft, from 

floodmark), by computation of flow through bridge opening and over roadway 500 ft downstream; minimum about 1 cfs Sept. 9, 1943, July 12, 1949, Sept. 17, 18, 1950, July 9, 

1951; minimum gage height, 1.74 ft Aug. 12, 1940; minimum daily discharge, 2 cfs Aug 

21, 28, Sept. 4, 1332. 

Remarks.--Records good except those for periods of no gage-height record, ice effect and

backwater from aquatic vegetation, which are poor. Flow regulated by mills above station. 

Revisions (water years). W d51: 1936(M). Revised figures of discharge for water years 

1939-43, 1947,1949, superseding those published in Water-Supply Papers 871, 891, 921, 

951, 971, 1001, 1081, 1111, 1141 and 1171. are given herewith.

July

1LI I

375

365

338

190

169

218

215

312

250

242

704

693

»126 

138

211

141

123

254

185

160

106

101

125

117

9, 364 10,614

l.ot 

1.9]

IB,755

540

3.44

3.97

1.22

1.41

Mln 

Mln

Mean 

Mean

7 (7 a.m.) 1,140 cfs (4.56 ft).

* Discharge measurement made on this day.

3 (4.69 ft); Feb. 15 (10:30 j 

(4 p.m.) 1,luO cfs (4.48 ft)
L<ay

1

Q

~

4

5

,_-

7

B

9

10

11

12

15

14

15

Ib

17

18

19

2o

 'I

E2

23

24

25

,P

oy

28

29

30

31

Total

Mean

Cfsm

in.

r^t.

131

60

119

1E5

91

110

99

56

117

117

91

68

62

44

38

57

69

59

37

59

31

25

96

97

79

94

49

92

89

37

519

2,667

36 .0

0.548

0.63

ll 3V .

675

465

350

277

247

386

343

285

256

227

145

174

223

178

182

144

156

134

94

173

136

133

132

125

101

63

135

116

116

81

-

6,252 'EOS

1.32

1.47

Ue-.

138

154

318

*354

285

214

206

172

142

107

261

222

234

238

184

142

150

228

203

£65

500

b350

b230

b200

b210

b2£0

b!95

b!60

b!20

b85

b90

6,577

212

1.35

1.56

Jan.

115

170

160

145

110

75

85

150

140

135

125

100

85

70

1,270

895

613

a440

a370

a280

a230

a260

a280

b270

b240

t235

t£30

b!50

blBO

b210

b205

8,023

259

1.65

1.90

Feb.

*b!80

b!70

b!50

bl£0

151

148

139

159

15£

160

317

315

268

bHEO

b!85

b!75

b!70

b205

211

172

153

187

193

169

159

206

216

151

164

-

-

5,345

184

1.17

1.26

Mar.

130

100

124

173

152

177

153

158

143

168

230

179

136

170

382

460

438

458

526

583

*619

577

449

425

405

342

312

289

340

532

1,800

11,130

361

2.30

2.65

Apr.

2,150

1,870

1,540

1 , 440

1,380

1,310

1,210

1,120

1.720

1,620

1,310

1,340

2 E80

1^950

1,480

1,180

985

955

925

895

1,150

1,180

1,120

1,020

925

847

715

643

470

445

-

37,175

1,239

7.89

8.8O

May

416

438

637

721

795

715

607

504

*433

385

321

301

325

E80

271

266 '93

C90

293

317

82

66

84

17

48

32

58

5.5

60

77

^27

11,712

378

2.41

2.78

June

1,540

1,180

955

739

556

460

360

252

242

3£6

346

337

315

275

197

£64

283

249

205

197

228

151

126

188

255

256

268

272

198

244

-

11,264

375

2.39

2 .67

July

156

177

150

226

£04

194

169

211

180

122

155

258

260

218

136

207

179

142

194

139

*46

205

322

258

229

234

221

57

156

180

90

5,675

183

1.17

1.35

Aug.

146

159

159

82

28_

101

109

75

69

59

60

39

68

110

80

73

30

51

58

89

54

52

70

91

58

*55

76

70

66

74

63

2,354

75.9

0.483

0.56

Sept .

39

EO

92

89

80

76

96

42

49

74

74

104

117

121

21

36

96

41

12£

113

115

38

75

102

90

90

87

59

47

63

~

2,298

76.6

0.488

0.54

Calendar year 1939: Max 1,240 Min 13 Mean 236 rfsra 1.50 In. 20.39

Water year 1939-40: Max 2,280 Min El Mean 302 Cfsm 1.92 In. E6.17

8 a.m.) 1,870 cfs (5.52 ft); Mar. 31 (9:30 p.m.) 2,550 

 = ?0 ft); June 1 (2 a.m.) 1,480 cfs (4.96 ft).

Peak discharge .____.... 

cfs (6.30 ft); Apr. 13 (7:30

(ba 15

... , .,2,460 

__ charge measurement made on this day. 

a No gage-height record; discharge estimate! 

and records for Quinebaug River at Putnam, Con 

Note.--Backwater from aquatic vegetation Oct 

Discharge, in ?ubic feet ptr second,

un basis of recorded range 

b Stage-discharg 

1-30, Aug. 1 to Sept. 30. 

witer year October 1940 to Sept

stage, weather records, 

lation affected by ice.

Hay

I

^

;

0:t .

66

55

74

4 \ 66

5

6

7

B

9

10

11

IE

13

14

15

Ic

17

18

19

20

21

22

23

24

25

26

27

E8

29

30

31

Total

Mean

Cfsm

in.

59

42

35

50

58

63

51

22

20

49

55

60

70

39

14

23

*55

56

34

44

42

40

32

65

51

46

82

1,538

49.6

0.316

0.36

Iiov.

31

93

E18

2E5

149

132

113

105

63

41

57

109

122

227

£59

479

390

334

254

zoo

173

15E

102

125

188

144

148

107

*168

156

-

5,444

181

1.15

1.28

l>ec.

110

212

b!95

b!95

117

159

126

221

E81

205

209

205

234

261

222

275

401

340

294

279

260

195

256

207

152

240

182

229

355

417

337

7,371

238

1.5E

1.75

Jan.

302

273

263

240

213

248

£63

230

b210

177

b!95

b240

*b200

b!95

b!90

b!95

b!95

188

b!95

bElO

b230

b!9S

192

190

b210

b220

1:195

b!80

b!75

b!70

bl80

6,559

212

1.35

1.56

Feb.

b!85

164

blBO

b!70

b!90

b!90

223

1,050

799

727

607

480

403

367

380

364

376

*308

b280

bH60

b250

228

224

b240

b230

b220

b2oO

194

_

_

-

9,489

339

2.16

2 .25

KIT.

197

181

210

£34

b240

238

228

217

207

b215

228

228

b200

200

191

207

236

bE25

b200

255

225

233

288

343

397

431

450

465

446

431

412

8,458

273

1.74

2.01

Calendar year 1940: Max 2,280 Mln 20 Mea

Apr.

390

376

367

385

580

450

455

412

376

354

333

291

264

281

*271

230

254

246

208

161

225

217

155

188

197

200

172

158

179

150

-

8,327

278

1.77

1.98

May

152

155

144

116

161

166

144

146

155

358

394

350

275

220

200

197

155

176

190

169

144

147

123

118

83

*81

121

94

100

92

66

5,192

167

1.06

1.22

June

43

105

138

97

159

259

214

184

184

136

122

94

107

92

62

119

418

325

259

171

119

77

107

112

103

36

68

39

23

81

-

4,053

135

0.860

0.96

July

125

62

76

39

64

28

*98

104

101

86

79

78

70

112

91

86

86

90

68

19.

52

83

79

73

81

61

65

105

262

203

202

2,826

91.2

0.581

0.67

n 302 Cfsm 1.92 In. 26

Aug.

*200

152

68

107

105

90

69

114

80

62

90

75

48

42

*74

72

55

34

83

74

74

100

93

34

73

119

62

94

71

86

62

2,562

82.6

0.526

0.61

Sept.

90

132

136

115

100

101

24

92

*66

56

60

58

85

18

56

60

52

58

*52

40

30

59

59

75

47

47

42

21

47

57

-

1,935

64.5

0.411

0.46

.17

Water year 1940-41: Max 1,050 Min 18 Mean 175 Cfsm l.ll In. 15.11

Peak discharge (base, 1,000 

* Discharge measurement 

Note. Backwater from aquati

fa).--Feb. 8 (5:30 a.m.) 1,210 cfs (4.65 ft),

.de or. this day. b Stage-discharge relatior

egetation Oct. 1 to Feb. 26, Apr. 22 to Sept. 30.

affected by ice.
162 THAMES RIVER BASIN

Quinebaug River at Quinebaug, Conn.--Continued

Discharge, in cubic feet per second, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

IE

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sra

In.

Oct.

48

25

15

56

44

14

7

56

53

59

63

9

49

63

50

50

51

28

24

38

49

48

47

45

26

10

50

77

29

20

37

1,240

40.0

0.255

C.29

Nov.

50

118

146

114

87

82

82

38

57

96

84

82

67

69

40

36

47

66

61

34

62

60

48

93

65

67

36

29

35

43

-

1,994

66.5

0.424

0.47

Dec.

67

67

35

68

*85

101

73

blOO

77

70

b75

b75

42

265

506

225

198

b!35

151

b90

b80

bllO

b!30

167

158

233

190

134

185

b!20

114

3,926

127

0.809

0.93

Jan.

79

249

260

218

230

b200

b!90

b!50

b!40

b!20

b70

b!40

*b!30

b!05

b95

b85

b70

b60

250

490

400

b330

315

240

222

258

205

157

b!50

b!50

141

5,899

190

1.21

1.40

Feb.

367

b280

b270

b240

b240

169

186

322

*358

296

236

212

b215

b!80

114

207

413

384

b335

b265

b205

b!90

204

b!75

163

169

171

141

_

-

-

6,707

240

1.53

1.59

Mar.

123

167

758

817

543

466

395

385

1,460

1,380

1,020

829

679

613

595

595

1,210

1,210

1,080

895

763

1,440

1,280

*1,020

853

757

679

607

571

572

544

24,306

784

4.99

5.75

Apr.

556

518

491

427

363

335

309

291

265

274

257

298

340

289

281

307

321

281

266

271

235

212

207

183

169

180

197

170

144

142

-

8,579

286

1.82

2.03

May

145

115

108

144

128

117

211

316

273

248

220

*184

174

184

154

116

142

229

146

166

189

182

188

200

186

171

142

133

122

62

89

5,184

167

1.06

1.22

June

*143

122

120

88

140

89

106

274

230

163

177

146

50

5Z

283

253

175

159

134

78

84

126

133

134

123

94

73

34

124

*101

-

4,008

134

0.854

0.95

July

106

87

117

122

96

137

249

214

183

138

75

86

117

86

81

73

96

64

64

103

114

75

103

94ai

40

135

I"1 7

161

iei

145

3,586

116

0.739

0.85

Aug.

93

50

*128

89

95

77

103

97

54

69

77

61

67

164

131

121

136

97

85

107

94

78

35

74

74

62

58

68

62

26

33

2,565

82.7

0.527

0.61

Sept.

*59

52

62

74

59

9

10

56

80

*64

101

63

75

~Se 115

107

104

100

96

34

61

79

92

53

51

42

28

58

56

57

-

1,983

66.1

0.421

0.47

ndar year 1941: Max 1,050 Min 7 Mean 155 . Cfsm 0.987 In. 13.41 

Water year 1941-42; Max 1.460_____Min 7______Mean 192_____Cfsm 1.22 In. 16.56 ________ 

Peak discharge (base, 1.000 cf3).--Mar. 5' (7 p.m.) 1.240 cfs (4.60 ft); Mar. 9 (6 p.m.) 2,110 cfs 

(5.78 ft); Mar. 17 (9 a.m.) 1,380 cfs (4.80 ft); Mar. 22 (2:30 p.m.) 1,580 cfs (5.10 ft).

* Discharge measurement made on this day. b Stage-discharge relation affected by ice. 

Note.--Backwater from aquatic vegetation Oct. 1 to Jan. 8, Apr. 15 to Sept. 30.

Discharge, in cubic feet per second, water year October 1942 to September 1943

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17ia

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

60

66 

62

26

34

*58

52

55

46

27

28

34

48

47

51

48

27

56

123

101

100

136

126

96

36

109

100

103

108

107

77

2,147

69.3

0.441

0.51

liov.

49

132 

163

235

186

175

157

55

133

86

192

193

190

188

83

146

101

116

141

160

168

142

194

179

432

608

590

492

410

475

-

6,571

219

1.39

1.55

Dec.

406

885 

783

576

499

440

392

329

289

270

*252

221

b!90

b200

215

b200

b!80

165

b!45

b!35

b!30

b!35

b!80

b!95

b!65

b!75

b!50

308

330

688

1.200

10,428

336

2.14

2.47

Jan.

b925

b700 

b550

b450

b400

*b370

b340

b320

b300

b285

b310

300

b280

b270

275

272

264

275

291

b295

b270

b255

b240

b245

256

253

245

b240

b210

223

236

10,145

327

2.08

2.40

Feb.

218

b200 

203

207

262

289

331

*326

289

289

365

472

b415

b350

b270

b250

b240

b230

b230

250

438

532

565

698

817

721

631

548

_

.

-

10,636

380

2.42

2.52

Mar.

504

482 

455

b420

b410

380

733

b645

b560

499

637

847

955

835

793

865

925

955

955

1,150

1,120

985

*853

733

697

667

649

631

595

532

499

21,966

709

4.52

5.21

Apr."

482

466 411

340

327

294

259

242

269

214

208

230

278

439

433

370

336

340

331

385

395

460

416

350

316

302

262

355

375

406

-

10,291

343

2.18

2.43

May

*482

460 

538

613

554

488

438

390

444

428

*460

571

637

565

438

433

416

482

601

619

637

811

757

661

548

526

577

532

460

411

565

16,392

529

3.57

5.88

 

June

340

370 

*365

521

268

192

262

277

258

249

215

190

79

188

156

163

135

196

195

95

161

143

108

107

99

53

57

98

70

60

-

5,466

182

1.16

1.29

July

36

*26 

23

20

36

114

59

81

80

62

44

78

87

69

68

75

61

53

57

60

62

99

113

86

77

114

82

68

98

122

86

2,176

70.2

0.447

0.52

Aug.

56

110 

*62

70

74

65

56

43

29

*53

52

56

64

91

55

107

64

58

53

64

81

28

56

45

50

53

54

62

35

25

50

1,821

58.7

0.374

0.43

Calendar year 1942: Max 1,460 Min 3 Mean 225 Cfsm 1.43 In. 19.40

Sept.

*61

61 

58

34

59

41

52

11

44

54

49

31

55

29

47

51

50

36

31

41

23

23

22

22

29

42

33

*46

47

45

1,205

40.2

0.256

0.29

Water year 1942-43: Max 1,200 Min 11 Mean 272 Cfsm 1.73 In. 23.50

Calendar year 1943: Max 1,150 Min 11 Mean 253 Cfsm 1.61 In. 21.84

Peak discharge (base, 1,000 cfs . Dec. 2 (11 a.m.) 1.120 cfs (4.42 ft): Dec. 31 (5 a.m.) 1.340

cfs (4.73 ft); Mar. 12 (11 p.m.) 1,020 cfs (4.25 ft); Mar. 20 (10 a.m.) 1,210 cfs (4.57 ft)

* Discharge measurement made on this day. b Stage-discharge relation affected by ice. 

Note.--Backwater from aquatic vegetation Oct. 1 to Dec. 19, June 9 to Sept. 30.
THAMES RIVER BASIN 

Quinebaug River at Quinebaug, Conn.--Continued

Discharge, In cubic feet per second,, water year October 1946 to September 1947

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Cfsm

In.

Oct.

909

*617

441

315

226

173

222

160

135

121

121

121

81

129

160

132

132

141

126

91

154

132

112

91

115

56

81

144

126

121

115

5,800

187

1.19

1.37

Nov.

*106

74

65

115

104

91

96

112

72

69

129

115

126

132

126

104

54

115

109

88

83

126

78

126

154

109

121

88

54

88

3,029

101

0.643

0.72

De?.

81

*112

121

86

78

88

58

46

99

101

96

91

104

76

62

78

86

86

81

78

129

288

270

230

151

219

*b!50

b75

b!85

190

b!60

3,755

121

0.771

0.89

Jan.

b65

b!40

141

81

b95

187

b!40

132

b!35

b!75

101

115

b205

124

138

170

201

144

173

311

533

*b370

b330

324

270

315

491

497

468

420

569

7,560

244

1.55

1.79

Feb.

581

491

*b410

404

685

563

474

409

358

b380

334

299

262

258

209

a210

a240

a240

a240

a210

al70

al50

al60

a230

a220

a210

a210

a200

_

_

-

8,805

314

2.00

2.08

Mar.

al50

al40

*a470

458

452

436

441

394

388

414

394

394

436

790

1,100

1,000

811

665

569

509

452

378

378

399

404

404

354

315

250

E66

*288

14,299

461

2.94

3.39

Apr.

254

292

527

491

575

909

825

689

599

515

463

425

420

414

363

344

404

373

349

329

399

409

404

368

349

329

339

378

341

306

-

13,182

439

2.80

3.12

May

*425

441

425

446

480

527

485

441

394

334

315

311

266

29Z

288

266

222

245

292

266

*279

279

275

234

301

441

363

311

270

201

£04

10,319

333

2.12

2.44

June

180

*208

197

230

230

208

208

270

470

417

346

268

207

146

191

204

158

161

133

123

79

70

152

152

141

146

158

126

75

131

-

5,785

193

1.23

1.37

July

107

75

85

62

70

35

*24

55

57

66

68

68

98

123

10E

85

114

105

71

49

121

141

155

133

146

73

64

231

304 242"

188

3,317

107

0.682

0.79

Aug.

*184

96

74

109

115

99

93

93

96

50

86

93

83

88

81

65

81

109

104

104

*101

83

58

67

101

160

170

121

104

74

56

2,998

96.7

0.616

0.71

Sept.

34

237

254

190

151

126

67

121

118

93

86

88

91

46

101

115

88

83

99

99

58

99

138

126

88

83

81

52

65

93

-

3,170

106

0.675

0.75

Calendar year 1946: Max 1,240 Mln 30 Mean 253 Cfsm 1.61 In. 21.85

Water year 1946-47: Max 1,100 Min 24 Mean 225 Cfsm 1.43 In. 19.42

Calendar year 1947: Max 1,100 Min 19 Mean 229 Cfsm 1.46 In. 19.82

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weathe 

and records for Quinebaug River at Westvllle and Quinebaug River at Putnam. 

b Stage-discharge relation affected by ice. 

Note.--Backwater from aquatic vegetation Oct. 1 to J 

Discharge, in cubic feet per second, water ye

19, May 18 to Sept. 30. 

October 1948 to September 1949

Day

1

2

3

4

5

t

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

Oct.

25

25

25

37

31

31

29

*40

51

42

31

43

38

38

38

42

26

40

36

36

38

37

29

41

48

58

53

33

30

80

21

1,172

37.8

0.241

0 28

Nov.

*31

30

26

55

93

86

93

85

86

98

272

215

202

160

142

128

107

105

100

217

247

232

225

212

185

176

173

155

168

153

-

4,257

142

0.904

1 01

Dec.

142

143

130

136

135

111

153

147

134

138

119

82

133

155

138

127

159

157

116

129

137

121

94

b90

b90

blOO

b85

*b80

b90

346

480

4,397

142

0.904

1 04

Jan.

588

544

475

386

368

847

883

742

622

544

485

430

391

368

287

278

266

241

284

277

251

306

314

328

346

328

298

308

320

285

307

12,697

410

2.61

3 01

Feb.

292

b270

*b250

228

232

b220

236

269

265

287

265

230

240

300

420

470

540

460

420

470

490

510

540

530

500

450

420

400

_

-

-

10,204

364

2.32

2 42

Calendar year 1948: Max 2,280 Min 11

Mar.

390

*380

337

314

314

400

440

396

355

342

355

368

342

328

314

299

280

262

258

250

261

312

446

485

435

386

355

346

310

278

253

10,591

342

2.18

_ 2 51.

Apr.

*250

225

222

228

234

430

386

361

391

346

310

279

260

320

360

564

346

315

401

416

396

350

360

378

341

336

290

238

236

195

-

9,562

319

2.03

2 26

May

185

*240

217

314

296

260

232

ecu

229

188

160

135

121

82

127

195

139

116

92

176

206

243

328

282

283

243

195

175

166

152

202

6,180

199

1.27

1 46

June

157

117

90

78

40

160

102

102

87

66

48

29

114

101

97

135

82

30

25

109

100

*106

128

81

31

28

51

55

30

29

-

2,408

80.3

0.511

0.57

Mean 297 Cfsm 1.89

July

36

39

25

24

34

28

15

38

29

22

39

19

25

22

25

21

25

29

28

28

28

26

25

22

28

29

28

53

28

20

20

858

27.7

0.176

0.20

Aug.

24

26

31

36

31

28

25

25

33

*30

29

±2

29

24

25

26

34

33

30

28

25

31

34

31

30

30

28

26

29

31

36

920

29.7

0.189

0.22

Sept.

66

33

35

12

20

30

14

30

*25

22

24

40

60

60

45

32

25

18

22

21

20

20

20

19

18

28

42

40

40

40

-

921

30.7

0.196

0.22

In. 25.75

Water year 1948-49: Max 883 Min 12 Mean 176 Cfsm 1.12 In. 15.20

Calendar year 1949: Max 883 Min 12 Mean 161 Cfsm 1.03 In. 13.96

Peak discharge (bs 1,000 cfs).--Jan. 6 (2 to 4 .) 1,020 cfs (4.25 ft), 

* Discharge measurement made on this day. b Stage-discharge Stage-discharge relation relation affected aiiectea by oice.< 

Note.--Backwater from aquatic vegetation Oct. 1 to Dec. 26, Apr. 25 to Sept. 11. No gage-heigh 

records Feb. 12 to Mar. 2, Sept. 12-30; discharge estimated on basis of recorded range in stage, 

weather records and records for Quinebaug River at Westville and Quinebaug River at Putnam.
THAMES RIVER BASIN

iuinebaug River at Wuinebaug, Conn .--Continued

in cubic feet per sec ater year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

ie

17

18

19

20

21

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

44

44

38

30

30

69

39

33

34

108

56

105

116

112

87

117

92

31

32

82

30

37

9

51

47

106

86

38

36

18

88

1,845

59.5

0.379

0.44

Hov.

*70

28

29

31

92

156

103

98

98

104

38

48

98

86

35

70

102

47

53

88

224

200

118

158

168

880

698

572

485

*402

-

5,379

179

1.14

1.27

Dec.

328

213

236

331

673

611

565

573

686

605

604

537

473

415

362

290

312

354

284

255

b220

b200

bllO 212~

247

b340

b210

b220

281

272

b340

11,359

366

2.33

2.69

Jan.

b340

b360

312

395

406

327

305

356

b240

*b300

262

256

175

245

533

562

500

464

451

425

467

458

386

609

790

£87

567

495

471

404

a280

12,828

414

2.64

3.04

Feb.

a370

757

616

538

509

438

1,130

1.890

al,400

al,000

a900

aSOO

a650

a550

aSOO

a450

a400

al , 000

945

779

679

1,010

978

828

701

634

*576

540

_

_

-

21,568

770

4.90

5.10

Mar.

481

453

406

402

462

461

453

447

436

355

333

382

333

391

582

551

497

456

*435

723

848

797

724

751

713

657

565

508

483

542

1,110

16,737

540

3.44

3.97

Apr.

* ,140

,O40

,440

,550

,300

1,040

841

749

692

588

523

490

496

462

431

433

392

352

342

329

246

280

438

429

433

*418

363

331

299

342

-

18,189

606

3.86

4.31

May

221

250

214

217

157

147

237

168

164

170

216

324

359

347

283

219

196

192

136

153

216

177

142

477

565

466

432

565

465

370

375

8,620

278

1.77

2.04

June

287

177

214

250

187

192

180

158

88

70

171

88

95

152

*240

206

228

280

292

227

186

158

54

103

195

114

152

112

134

142

-

5,132

171

1.09

1.22

July

105

98

89

79

85

85

30

32

82

77

72

74

*58

26

41

100

98

79

108

145

89

45

124

71

56

73

43

20

33

*108

55

2,278

73.5

0.468

0.54

Aug.

54

72

48

57

44

61

52

45

59

85

101

109

217

124

96

121

347

221

210

308

406

305

203

174

118

61

142

90

89

63

86

4,168

134

0.854

0.98

Sept.

73

70

154

206

156

92

125

98

28

121

47

74

66

69

66

44

103

58

*68

*77

74

47

29

84

84

64

63

59

65

60

-

2,424

80.8

0.515

0.57

Calendar year 1950: Max 925 Min 9 Mean 218 Cfsm 1.39 In. 18.80

Water year 1950-51: Max 1,890 Min 9 Mean 303 Cfsm 1.93 In. 26.17

Peak discharge (base, 1,000 cfs).--Feb. 7 (9 p.m.) 2,940 cfs (6.74 ft); Feb. 18 (time unknown) 

1,140 cfs (about 4.4 ft); Feb. 22 (9 a.m.) 1,140 cfs (4.42 ft); Mar. 31 (9 a.m.) 1,240 cfs (4.57 ft); 

Apr. 3 (4 p.m.) 1,760 cfs (5.35 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for Quinebaug River at Putnam.

b Stage-discharge relation affected by ice.

Note. Backwater from aquatic vegetation Oct. 1 to Jan. 15, May 1 to Sept. 30.
THAMES RIVER BASIN 165

^uinebaug River at Putnam, Conn.

Location.--Lat 41°54'34", long. 71°54'48", on left bank at Putnam, Windham County, 0.15

 mile (revised) downstream from Little River 0.3 mile upstream from New York, New Haven 

& Hartford Railroad bridge, 2.8 miles (revised) downstream from French River, and at 

mile 35.7.

Drainage area.--331 sq mi.

Records available.--December 1929 to September 1951.

Gage. Water-stage recorder. Datum of gage is 216.76 ft above mean sea level, datum of 

1929.

Average discharge.--2S years, 538 cfs.

Extremes.--Maximum discharge during year, 5.180 cfs Feb. 8 (gage height, 9.81 ft); mini-

 mum, 17 cfs Oct. 8 (gage height, 1.66 ft); minimum daily, 30 cfs Oct. 1.

1929-51: Maximum discharge, 20,900 cfs Sept. 21, 1938 (gage height, 19.45 ft, from 

floodmarks), bv computation of peak flow over dam 1 mile upstream and over dam on 

Little River 2'miles upstream from its mouth; minim , 8.5 cfs Oct. 26, 1935; minimum 

daily, 11 cfs Oct. 5, 12, 1930.

Remarks.--Records excellent. City of Putnam diverts an average of less than 1 million 

gallons per day from Little River for municipal supply. Large diurnal fluctuation, 

particularly during low flow, caused by many dams and reservoirs above station, largest 

of which is Lake Chaubunagungamaug with an estimated usable capacity of 207,000,000 

cu ft.

Revisions (water years). W 781: Drainage area, 1934(M).

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

in cubic feet per second)

Oct. 1 to Feb.

1.3 

2.1

690 

1,850 

o,390 

4,640

Feb. 9 to Sept. 30

3.0 

4.O

Mote .--Same as preceding 

table below 5.8 f t .

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

D ay

1

 ^

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

E3

24

25

EP

27

28

29

3U

31

Total

Mean

^ f sm

In.

Oct.

*30

92

74

89

73

65

150

46

86

130

222

104

209

198

135

182

218

157

111

123

117

54

100

96

159

142

162

103

64

32

76

3,664

118

0.356

0.41

HOT/ .

*161

149

123

69

130

296

?77

231

209

223

117

67

147

178

139

132

154

112

70

145

345

392

acs

289

252

1,580

1,710

1,440

1,140

*915

-

11 , 420

381

1.15

1.28

Dec.

730

543

440

550

1,110

1,120

1,040

988

1,160

1,020

1,170

1,040

922

813

719

613

520

599

539

484

460

389

235

351

350

450

430

368

482

657

639

20,331

675

2.04

2.35

Jan.

542

614

602

767

821

750

615

690

621

*546

531

496

438

383

912

1,320

1 , 140

1,000

950

909

844

927

796

1,050

1,590

1,470

1,220

988

977

826

685

26,018

839

2.53

2,92

Feb.

704

1,520

1,340

1,140

1,100

913

1,170

4,560

3,480

2,540

1,650

1,380

1,260

1,290

1,230

1,080

965

1 , 7 10

*2,130

1,780

1,500

1,870

2,060

1,710

1 , 440

1,320

1,200

1, 130

-

-

-

44,972

1,606

4.85

5.05

Mar.

1,030

960

924

765

972

967

962

924

907

829

623

798

699

758

1,140

1,140

1,050

815

*915

1,250

1,650

1,650

1,500

1,470

1,410

1,350

1,200

1,050

965

1 , 110

1,890

33,673

1,086

3.28

3.78

Apr.

2,270

2,130

2 , 850

3,750

3,040

2,270

1,850

1,590

1,470

1,320

1,200

1,140

1,110

1,050

840

915

840

765

690

715

618

527

765

*83E

890

859

777

701

510

684

-

39,022

1,301

3.93

4,38

May

579

475

526

422

411

238

375

395

319

325

397

693

598

635

579

499

396

388

304

£55

339

301

284

881

1,230

1,080

908

1,250

1,090

908

899

17,957

579

1.75

2 .02

June

756

519

360

506

466

477

438

395

293

215

287

315

245

346

*574

641

506

776

780

624

528

451

291

334" 179

329

262

300

256

308

-

12.757

425

1.28

1.43

July

229

193

155

187

157

173

121

109

173

154

136

180

*171

112

73

117

202

205

323

385

284

162

194

253

184

159

185

73

71

137

142

5,399

174

0.526

0.61

Aug.

141

133

136

90

84

126

113

105

121

115

216

178

362

29O

250

274

674

532

395

449

833

706

524

464

325

186

331

266

231

212

185

9,047

292

0.88.2

1.02

Sept.

202

124

270

392

344

314

303

285

128

233

226

160

165

248

220

77

114

128

128

146

*163

98

133

*98

182

151

137

110

90

67

-

5,436

181

0.547

0.61

Calendar year 1950: Max 1,780 Min 30 Mean 460 Cfsm 1.39 In. 18.84

Water year 1950-51: Max 4,560 Min SO Mean 631 Cfsm 1.91 In. 25.86

Peak discharge

16.49 ft); Fe 

Discharge mea

= , 2,000 cfs) .--Feb. 8 (6:30 a.m.) 5,180 el's (9.81 ft); Feb. 19 (3 p. 

2 (4 p.m.) 2^130 cfs (6.45 ft); Apr. 3 (12 p.m.) 4,040 cfs (8.66 ft), 

ment made on this day.
166 THAMES RIVER BASIN

Five Mile River at Killingly, Conn.

Location.--Lat 41°50 I 14", long. 71°53'09", at upstream left abutment of New York, New

 Haven & Hartford Railroad bridge, 0.5 mile upstream from Whetstone Brook, 0.6 mile 

south of Killingly, Windham County, and 3.2 miles upstream from mouth.

Drainage area.--58.2 sq mi.

Records available.--November 193? to September 1951.

Cage.--Water-stage recorder. Datum of gage is 222.22 ft above mean sea level, datum

 oT 1929.

Average discharge.--14 years, 98.9 cfs.

Extremes.--Maximum discharge during year, 521 cfs Apr. 4 (gage height, 3.71 ft); maximum gage height, 4,04 ft Feb. 9 (backwater from ice); minimum discharge, 4.7 cfs 

Nov. 1, 2, 3, 4 (gage hei£ht, 0.50 ft); minimum daily, 6.3 cfs Oct. 21.

1937-51: Maximum discharge, 2,840 cfs July 24, 1938 (gage height, 8.52 ft); 

minimum, 3.6 cfs Aug. 24, 1941 (gage height, 0.44 ft); minimum daily, 5.6 cfs Aug. 

13, 1939, Aug. 24, 1941, Nov. 24, 1949.

Peak discharge of Mar. 12, 1936, 1,600 cfs, by computation of flow over dam at 

Danielson.

Remarks.--Records excellent. Flow regulated by dams and reservoirs above station. 

Revisions (water years).--w 921: 1938-40. W 951: 193S-41.

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

discharge, in cubic feet per second)

Oct. 1 to Feb. 8

1.2 

1.5 

2.0 

3.5

Feb. 9 to Sept. 30

181

483

0.7 6.

0.8 10

1.0 21

1.2 37

1.6 

2.0 

3.4

171

465

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.

Oct.

25

50

2B

29

28

24

14

24

37

31

48

47

48

29

32

47

29

35

33

30

6.3

26

49

32

29

32

22

15

26

44

32

981.3

31.7

0.545

0.63

Nov.

*28

28

32

55~7.0

70

55

46

45

44

15

34

52

38

35

35

36

16

33

56

51

76

52

63

45

332

303

164

113

100

-

2,059.0

68.6

1.18

1.32

Dec.

90

80

78

87

158

147

128

136

171

167

160

152

144

131

127

111

111

110

110

93

87

86

80

80

85

76

65

60

80

117

113

3,420

110

1.89

2.18

Jan.

Ill

101

100

117

123

111

108

106

97

*92

88

86

83

78

152

235

200

175

161

155

155

147

127

167

250

233

198

171

160

150

130

4,367

141

2.42

2.79

Feb.

137

308

277

234

204

180

210

476

450

340

268

232

208

200

186

*168

160

242

*277

240

214

263

286

249

219

200

187

176

_

-

-

6,791

242

4.16

4.33

Mar.

167

160

156

153

173

175

173

162

156

145

136

132

131

146

198

196

180

167

157

204

255

248

240

231

215

*197

178

163

154

158

230

5,536

179

3.08

3.55

Apr.

272

224

329

465

413

353

309

261

240

213

198

194

187

182

171

163

162

153

145

147

141

100

123

*144

127

119

114

109

111

98

-

5,967

199

3.42

3.82

May

85

78

76

73

72

61

65

69

67

67

77

109

97

80

76

73

67

68

58

65

74

60

60

142

204

180

164

224

229

192

168

3,180

103

1.77

2.04

June

155

130

118

104

101

97

90

80

69

58

70

60

57

58

100

110

110

212

161

123

103

90

74

79

71

61

59

58- 53

53

-

2,764

92.1

1.58

1.76

July

58

56

54

47

37

38

36

32

41

36

41

40

33

31

24

40

54

52

47

35.

54

50

55

42

42

42

36

14

34

56

34

1,352

43.6

0.749

0.86

Aug.

*34

40

39

19

27

46

31

28

28

32

8.1

22

47

36

38

44

92

84

61

60

65

56

52

49

33

43

57

41

38

37

41

1,323.1

42. b

0.735

0.85

Sept.

23

39

43

56

40

37

41

31

39

53

37

34

38

38

*14

35

54

40

38

33

35

12

40

58

45

40

37

33

10

32

1,105

36.8

0.632

0.71

Calendar year 1950: Max 339 Min g.3 Mean 88.4 Cfsm 1.52 In. 20.60

Water year 1950-51= Max 472 Kin g.3 Mean 105 Cfsm 1.82 In. 24.84

Discharge measurement made on this day.
THAME3 RIVER BASIN 167

Moosup River at Moosup, Conn.

Location.--Lat 41°42'37" 1 long. 71°53'11", on right bank at outlet of tailrace from 

Majestic Metal Specialties, Inc. (formerly Aldrich Bros.) mill at Moosup, Windham 

County, 100 ft upstream from New York, New Haven & Hartford Railroad bridge, 0.5 mile 

downstream from Ekonk Brook, and 3.8 miles upstream from mouth.

Drainage area.--83.5 sq mi.

Records available.--October 1932 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 196.64 ft above mean sea level, datum of 

T929.

Average discharge.--19 years, 156 cfs.

Extremes.--Maximum discharge during year, 1,320 cfs Apr. 3 (gage height, 4.86 ft); minimum, 6.0 cfs Oct. 1, 2 (gage height, 0.83 ft); minimum daily, 6.0 cfs Oct. 1.

1932-51: Maximum discharge, 4,260 cfs Mar. 12, 1936 (gage height, 8.35 ft), from 

sharp, short rise of unknown origin; maximum natural discharge, 4,100 cfs July 24, 1938 

(gage height, 8.20 ft), from rating curve extended above 1,500 cfs on basis of computation of flow over dam a quarter of a mile above station at gage heights 6.9 and 8.2 

ft; minimum, 0.1 cfs Feb. 8, 1934; minimum gage height, 0.36 ft Oct. 17, 1947; minimum 

daily discharge, 1.1 cfs Aug. 24, 1949.

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

good. Low flow completely regulated by mills above station.

Revisions (water years). W 781: Drainage area. W 851: 1933, 1934(M), 1935-37.

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

and discharge, in cubic feet per second)

0.8 

.9 

1.0 

1.2 

1.5

5.2

8.0

2.0 137

260

425

840

1,110

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

Cf sin

In.

Oct.

6.0

22

34

30

16

12

6.6

6.3

13

20

46

51

78

17

42

58

40

55

40

42

*9.2

8.0

42

46

44

28

30

8.3

7.7

24

33

915.1

29.5

0.353

0.41

Nov.

37

31

38

11

95

198

152

115

82

76

12

30

92

74

25

34

67

35

8.4

30

132

157

106

126

128

623

615

418

286

230

-

4,065.4

136

1.63

1.82

Dec.

*191

101

138

244

350

303

26O

266

362

335

290

251

214

171

174

167

118

182

150

119

124

54

90

109

128

120

117

82

135

309

309

5,963

192

2.30

2.65

Jan.

271

*222

209

176

223

171

172

158

164

141

126

121

126

64,

383

492

336

300

250

200

185

184

136

270

474

414

293

236

203

196

174

7,120

230

2.75

3.17

Feb.

262

678

535

400

323

258

410

1,080

7OO

478

346

299

287

278

248

*224

214 leT

575

446

363

495

503

404

316

278

255

229

_

_

-

11,371

406

4.86

5.06

Mar.

226

190

209

221

303

288

260

235

219

187

194

138

173

228

398

376

300

252

198

399

523

478

404

380

329

*284

252 1-92

210

237

407

8,690

280

3.35

3.86

Apr.

579

453

997

1.050

745

511

397

338

3O6

278

268

252

252

249

236

184

198

214

182

191

179

143

292

*383

320

260

208

180

190

167

-

10,202

340

4.07

4.54

May

162

153

129

143

52

114

132

117

116

121

134

195

230

127

179

123

106

105

28

86

118

99

74

382

478

46O

376

555

499

355

275

6,223

201

2.41

2.78

June

225

117

143

180

137

126

86

134

18

W

108

94

77

106

*175

228

207

221

219

157

ies

97

24

86

112

96

64

49

100

18

-

3,636

121

1.4,5

1.62

July

12

61

53

37

54

99

16

10

78

52

46

50

*21

10

8.8

68

55

63

106

119

26

56

102

70

48

51

32

8^4

8.8

43

38

1,502.0

48.5

0.581

0.67

Aug.

44

69

29

8.4

7.7

37

28

36

29

33

8.0

7.2 2-9 

43

54

48

39

26

37

65

110

126

89

44

35

25

60

38

37

29

22

1,292.3

41.7

0.499

0.58

Sept.

9.6

8.0

25

52

54

38

41

12

a8

a32

a35

21

17

18

*3.4

7.7

33

25

31

35

9.6

8.4

8.0

44

30

34

12

30

8.4

7.4

-

702.5

23.4

0.280

0.31

Calendar year 1950: Max 

Water year 1950-51: Max

700

1,080

Hln 

Hln 6.0

Mean 

Mean

133

169

Cf sm 

Cfsm

1.59

2.02

In. 

In.

21.61

27.47

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and pattern of daily regulation.
THAME3 RIVER EA3IN

Location.--Lat 41°35'5S", long. 71°59'05", on left bank In rear of high school on Slater 

Avenue at Jewett r ity, Mew London County, 570 ft downstream from outlet of canal from 

Flsk Mills, Inc., at mouth of Pachaug River, l.UUO ft downstream from railroad bridge, 

and at mile 6.1.

Drainage area.--711 sq mi.

Records available.--July 1918 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 63.07 ft above mean sea level, datum of TQOQ

Extremes.--Maximum discharge during year, 3,900 cfs Apr. 4 (gage height, 13.97 ft); minimum, 16 cfs Nov. 18 (gage height, 3.46 ft); minimum daily, 21 cfs Oct. 1.

1913-51: Maximum discharge, 29,2nO cfs Mar. 19, 1936 (gage height, 24.0 ft, from 

floodmarka), by computation of peak flow over three nearby dams; minimum daily, 18 cfs 

Aug. 28, Dec. 11, 1949.

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

fair. Flow regulated by many ponds and reservoirs above station, the largest of which 

are Lake Chaubunagungamaug and Pachaug Pond.

Revisions.--W 731: Drainage area.

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

feet per second)

3.5 

3.7 

4.0 

4.5 

5.0

Oct. 1 to Apr. 4

19 6.0

39 7.0

84 9.0

200 13.7

1,530

3,180

8,480

750

1,470

Note.--Same as pr 

be low 5.8 ft.

eding table

I' ay

l

;

4

5

,.

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

C5

26

27

28

29

30

31

Total

Mean

Cfsm

In.

net.

21

284

302

333

341

299

28

22

325

392

363

362

247

143

*276

514

392

457

490

320

*23

42

425

367

351

353

283

25

129

386

363

8,658

279

0.392

0.45

fiov.

371

322

231

61

326

711

726

683

718

332

175

213

479

412

591

428

226

54

197

453

568

758

592

620

643

2,140

5,450

2,820

2,260

1,780

-

23,340

778

1.09

1.22

Dee.

*1,500

1,220

840

1,110

1,820

2,140

1,940

1,740

2,100

2,060

2 , 020

1,980

1,780

1,600

1,420

1,280

1,050

1,220

1,220

1,020

960

870

668

550

750

870

828

780

851

1,350

1,700

41,237

1,330

1.87

2.16

Jan.

1,560

*1,500

1,420

1,500

1,670

1,530

1,320

1,500

1,250

1,180

1,110

1,050

990

780

1,770

3,180

2,640

2,260

1,980

1,820

1,740

1,900

1,640

1,800

5,560

3,090

2,550

2,180

2,140

1,900

1,460

55,770

1,799

2.53

2.92

Feb.

1,500

3,' 360

2,730

2,640

2,180

2,230

6,720

67500"

4,500

3,600

3,180

2,730

2,550

*2,460

2,260

2,020

3,060

4,760

4,050

3,360

3,650

4,450

3,750

3,180

2,910

2,550

2,380

-

._

-

92,710

3,311

4.66

4.85

Mar.

2,220

2,060

1,900

1,980

2,300

2,300

2,220

2,140

1,980

1,820

1,600

1,670

1,670

1,700

2,460

2,640

2,300

2,140

2,060

2,550

5,950

3,750

3,560

5,270

3,090

2,910

2,550

2,500

2,140

2,220

5,540

74,790

2,413

5.39

5.91

 

Apr.

4,870

4,450

5,690

8,480

6,810

5,270

4,060

3,460

3,260

2,790

2,610

2,520

2,360

2,200

2,080

2,040

1,960

1,820

1,680

1,610

1,470

1,400

1, 780

*S,360

2,120

1,960

1,860

1,500

1,470

1,500

-

87,440

2,915

4.10

4.57

 

May

1,440

1,250

1,190

1,100

832

860

980

980

920

920

805

1,220

1,610

1,400

1,280

1,280

1,100

950

778

615

786

880

785

1,510

2,790

2,610

2,200

2,790

2,700

2,200

1,920

42,681

1,377

1.94

2.24

June

1,750

:.,'o70

,220

,130

,100

,070

832

695

490

793

777

764

767

950

1,280

1,160

*1,500

1,750

1,470

1,220

980

750

580

778

778

778

722

640

555

-

29,719

991

1.39

1.55

July

396

376

327

426

394

410

382

314

438

534

431

495

429

264

240

457

814

677

734

1,020

671

452

629

630

602

462

464

327

285

360

392

14,832

478

0.672

0.77

Aug.

461

473

363

238

184

352

373

271

260

338

284

382

517

642

560

584

705

1,130

785

754

1,020

1,290

1,090

794

654

416

430

567

472

407

364

17,166

554

0.779

0.90

Sept.

245

282

295

370

700

600

550

500

450

250

450

350

300

400

350

100

110

264

353

394

60

198

217

297

298

371

454

199

104

87

-

9,578

319

0.449

0.50

Calendar year 1950 : Max 4,150 Min 21 Mean 1,055 Cfsm 1.48 In. 20.17

Water year 1950-51 : Max 8,480 Min 21 Mean 1,364 Cfsm 1.92 In. 26.04

le, 4,500 cfs).--Feb. 8 (7 p.m.) 8,620 ofs (13.75 ft); Feb. 19 (9 

23 (8:30 a.m.) 4,650 cfs (10.52 fb); Apr. 4 (8 a.m.) 8,900 cfs ( 

 rnent made on this day.

Peak discharge (bas 

cfs (10.87 ft); Feb. 

 * " Discharge measurement made on this day. 

Note.--Ho gage-height record Sept. 5-17; discharg 

tations at Putnam and on Five Mile River at Killinigly and Moosup River at Moosup.

 a.m.) 5,090 

(13.97 ft) .

records for
THAMES RIVER BASIN 

Yantic Siver at Yantic, I'onn.

Drainage area. --68.6 sq mi.

Records available.--October L930 to September 1951.

Gage.--Water-stage recorder. 

of 1929.

Extremes.--Maximum discharge during year, 2,500 :fs Apr. 3 (gage height, 8.2n ft); minimum, y.9 cfs uct. 3 (gage height, 0.8S ft); minimum daily, 10 cfs Oct. 1-4.

1330-51: Maximum discharge, 13,500 cfs Sept. 21, 1938 (gqge height, 14.b6 ft, 

from floodmark), by computation of flo,\r over two dams 2j miles above and 3 miles 

below station, respectively; minimum, 2.3 cfc cometlme during period July 21 to 

Aug. 11, 1949; minimum gage height, 0.41 ft Oct. 13, 1930; minimum daily discharge, 

3.3 cfo Oct. 13, 1930.

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

are fair. Low flow completely regulated by mills above station.

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

discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1 to Nov. Z)

Oct. 1 to Apr. 3

0.8 e.6 3.0

1.2 27 4.0

1.5 48 5.0

2.0 98 7.0

Discharge, In 2ublo feet pe

Apr. 4 to Sept. 30

795

1,700

October 1950 tc

Day

1

2

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

10

10

10

10

11

111111

11

29

60

54

69

22

23

26

22

20

20

74

13

12

13

14

15

14

14

13

15

17

17

671

21.6

0.244

0.28

Nov.

17

*17

6 LI

44

134

120

75

57

49

68

20

30

26

31

23

25

67

17

17

17

101

134

90

75

70

360

350

250

190

150

-

2,087

89.6

1.01

1.13

Dec.

120

100

65

62

550

32O

240

240

260

220

200

180

165

150

140

145

160

130

105

9o

82

77

75

80

88

80

75

70

140

29o

240

4,779

154

1.74

2.01

Jan.

200

*160

140

210

210

185

160

140

125

115

105

100

95

90

270

700

410

250

200

204

190

153

108

432

650

421

274

206

197

183

125

7 ,009

226

2.55

2. 94

Feb.

265

821

495

327

249

208

496

1,690

796

385

284

263

263

264

253

214

191

776

695

*458

384

*791

695

432

358

294

274

255

-

-

-

12,876

460

5.19

5 . 40

Mar.

231

235

245

263

349

527

284

255

225

19D

167

169

164

346

605

445

327

26;

225

696

743

508

432

458

395

*327

274

23d

241

316

1,270

11,216

36E

4.09

4.72

Apr.

eoo

508

1 '710 410

508

420

360

327

294

94

94

27

94

55

221

239

214

195

179

166

155

432

470

336

274

225

193

195

*178

12,093

403

4.55

5 . 08

May

159

153

119

115

106

102

98

88

67

82

119

221

152

116

10;

85

70

67

69

65

67

62

634

590

408

328

445

338

261

197

5,741

185

£.09

2.41

June

155

123

103

99

96

95

33

71

59

51

50

48

93

159

121

92

*127

114

86

67

54

52

46

36

36

36

56

49

2 35'

78^4

n.885

0.99

July

48

44

31

56

45

34

27

24

21

20

19

19

17

Ib

15

14

16

16

16

14

16

16

46

49

*24

16

17

16

15

782

25.2

0 . 284

0. 33

Aug.

27

51

35

31

18

Id

17

16

16

15

14

14

14

II

12

1.7

46

35

23

22

21

17

15

14

14

13

12

12

12

12

6°4

20.1

0.227

0.26

Sept.

12

14

16

16

16

14

15

14

12

12

12

12

17

24

46

43

39

42

41

40

40

38

24

19

16

+ 14

13

12

12

678

0.255

0.28

Calendar year 1950 : Max 1,090 win 10 Mean 122 Cfsm 1.38 In. 18.68

Water year 1950-51 : Max 1,690 win 10 Mean 169 Cfsm 1.91 In. 25.33

Peak discharge (base. l.OOO cfs).--Feb. 2 (4 a.m.) 1,020 cfs (5.59 ft); Feb. 8 (2 a.m.) 2,210 cfs 

(7.81 ft); Mar. 20 (2 p.m.) 1,060 cfs (5.71 ft); Mar. 31 (7 a.m.) 1,500 cfs (6.61 ft); Apr. 3 (5 p.m.) 

2,500 cfs (8.20 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Nov. 23 to'Dec. 3, Dec. 6 to Jan. 3, Jan. 5-19; discharge estimated on 

basis of recorded ranges In stage, weather records and records for Salmon Blver near East Hampton.

288890 O - 54 - 12
170 CONNECTICUT RIVER BASIN

Connecticut River at First Connecticut Lake, near Pittsburg, N. H.

Location.--Lat 45°05'15", long. 71 "17"35", on right bank a quarter of a mile downstream 

iTom dam at First Connecticut Lake and 6 miles northeast of Pittsburg, Coos County.

Drainage area.--83.0 sq mi.

Records available. April 1917 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,560 ft (from topographic map). Prior 

fo Jan. 1, 1918, discharge computed from flow through gates at dam a quarter of a mile 

upstream. Jan. 1 to July 28, 1918, staff gage at present site and datum.

Average discharge. 34 years, 198 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 749 cfs Jan. 12, June 16, 17 (gage height, 3.41

 ft); minimum, 12 cfs Mar. 16-30.

1917-51: Maximum discharge, 7,200 cfs June 16, 1943 (gage height, 6.25 ft), from 

rating curve extended above 1,900 cfs on basis of computation of flow over dam at gage 

height 6.12 ft; maximum gage height, 6.35 ft May 5, 1925 (backwater from logging operations); minimum discharge, 2.8 cfs Mar. 16, 1929.

Remarks.--Records good except those below 20 cfs, which are fair. Flow regulated by First 

Connecticut and Second Connecticut Lakes (see p.

Revisions (water years).--W 661: 1925(M). W 756: Drainage area. W 1001: 1931-39.

Hating table, water year 1950-51 (gage height, in 

feet, and discharge, in cubic feet per second)

1.45 

1.5 

1.7 

2.0

2.5 

3.0 

3.5

221

440

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

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

238

192

148

148

101

16

66

148

148

148

101

*15

16

16

16

16

16

16

16

16

16

16

16

16

16

72

193

335

514

514

514

3,819

123

-99

Nov.

500

488

488

488

223

15

Ts

15

*15

15

15

15

15

15

15

15

15

15

15

16

16

16

16

16

16

18

16

16

16

16

-

2,575

85.8

+522

Dec.

16

16

16

17

*18

18

18

18

18

19

18

19

20

20

21

186

500

494

488

320

109

18

237

482

482

482

488

488

488

488

482

6,504

210

-61

Jan.

482

488

258

16

16

16

166

295

457

751

722

661

488

488

494

488

494

494

388

158

158

312

494

367

242

242

328

488

488

494

608

12,021

388

-1,012

Feb.

731

722

722

536

339

339

272

148

148

201

295

295

291

291

240

148

148

148

148

148

148

148

148

256

482

482

482

360

-

-

8,816

315

-653

Mar.

205

145

145

145

145

145

145

145

145

145

142

142

142

142

139

98

It

12

12

12

12

12

12

12

12

12

12

12

12

12

13

2,496

80.5

+10

Apr.

11

13

15

14

13

13

13

13

14

14

14

14

*15

15

15

15

15

15

15

15

15

15

15

15

15

16

16

16

16

16

~

' 438

14.6

+1,903

May

16

43

114

460

454

330

237

190

349

435

*314

199

199

343

298

199

367

596

668

591

330

330

213

18

18

18

18

18

18

18

18

7,421

239

+288

June

18

18

18

18

18

18

18

18

18

18

109

*242

520

731

731

141

749

574

221

221

221

156

18

179

249

176

18

18

18

18

~

6,098

203

-527

July

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

19

19

18

25

*18

18

18

18

88

195

812

26.2

+427

Aug.

193

130

18

18

18

67

150

150

150

148

148

*148

148

150

150

153

153

153

150

150

95

18

18

18

18

69

153

153

153

106

18

3,364

109

-121

Sept.

18

18

113

299

*299

199

18

110

238

238

238

238

238

302

405

403

403

598

598

598

398

392

398

398

398

392

392

392

392

592

~

8,913

297

-627

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

66.2

1.04 

1.20

287 

3.46 

3.86

Calendar year 1950: 

Water year 1950-51:

187 

2.25 

2.60

9.94 

0.120 

0.14

44.9 

0.541 

0.56

84.3 

1.02 

1.17

749 

9.02 

10.07

347 

4.18 

4.82

Observed

Max 1,250 Min 8.8 Mean 185 

Max 749 Min 12 Mean 173

-0.07 

-0.00084 

-0 . 0009

186 

2.24 

2.58

63.4 

0.764 

0.88

55.2 

0.665 

0.74

Adjusted

Mean 181 Cfsm 2.18 In. 29.56 

Mean 175 Cfsir 2.11 In. 28.62

* Discharge measurement made on this day.

t Change in contents, in millions of cubic feet, in First Connecticut and Second Connecticut Lakes. 

Note. Negative figures of adjusted discharge and runoff indicate that evaporation and seepage from 

reservoirs exceeded Inflow.
CONNECTICUT RIVER BASIN 

Connecticut River at North Stratford, N. H.

171

Location.--Lat 44°44 I 55", long. 71°37'55" 

400 ft downstream from Nulhegan River.

on left bank at North Stratford, Coos County,

).17 ft above mean sea level, datum of

Drainage area. 799 sq mi.

Records available.--August 1930 to September 1951.

Gage.--Water-stage recorder. Datum of gage is

Average discharge.--21 years, 1,568 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 11,500 cfs Nov. 26 (gage height, 9.32 ft); minimum daily, 242 cfs Oct. 7.

1930-51: Maximum discharge, 28,700 cfs June 16, 1943 (gage height, 14.67 ft), from 

rating curve extended above 15,000 cfs; maximum gage height, 16.66 ft Mar. 13, 1936 

(ice Jam); minimum daily discharge, 112 cfs Aug. 2b, 1948.

Remarks.--Records excellent except those for periods of ice effect, which are fair. Flow 

regulated by powerplants and by First Connecticut and Second Connecticut Lakes, and by 

Lake Francis since 1940 (see p.

Revisions (water years).--W 781: 1934(M). W 891: Drainage area.

Raiing tables, water ye 

height, in feet,

ept. 50

Day

year October 1350 to September 19bl

740 

7ZO

527 

b!9

1,940

1.7BO

1,170

99o

854

b,890 

9,b20 

6,310 

b,010 

5.89O

1,150

1,300

1,250

1,300

1,500

1,450

Feb.

l,bOO 

1,800 

2,OOO 

2,000 

1,400

1,250

1,200

1,150

1,100

1,050

1,100 

1,150 

1,050 

940 

1,350"

1,450

1,500

1,550

1,400 

1,260 

1, 150 

1,150 

1, £30

1,140

1,080

1,110

1,500

3,250

5,470

950 

U35 

t8O 

644 

813

444 

*630

791 

,180 

,280

,300

,280

,270

879

700

eeo

99b 

584 

374 

313 36~4

414 

444 

3b4 

327

413

527

391

327

275

861

1,280

864

52 /

409

d!4

857

1, 4bO

1,650

471 

66B 62~6

438

414

550

582

527

498

511

511

504

603

471

414

356

302

334

653

617

535

409

327

613

974

938

914

902

914

914

93k,

1,090

I,0b0

1,220

1,180

1,170

1, 140

1,050

Tbtal 

Me a 

(t)

59,737

1,991

+1,077

49,h60

I,b02

-1,407

150,400

5,013

+3,994

47,939

1.54D 

+l,56d

24,442

815 

-1,203

Adjusted for change in

Mean 

Cfsm 

In.

689 

0.862 

0.99

2,407 

3.01 

3.3b

Calendar year 1950 : 

Water year 1950-51:

2,01B 

2. 53 

2.91

c08 

0.761

O.U8

788 

0.9M 

1.03

1,077 

1.35

1.55

t,554 

8.20 

9.15

2,132 

E.67 

3. Ob

Observed

Max 14,400 Min 242 Mean 1,550 

Max 9,b20 Min 242 Mean 1,527

526 

0.658 

0. 73

810 

1.01 

1.17

413

0.517 

O.bO

3E1 

0.439 

0.49

Adjusted

yean 1,582 Cfsm 1.98 In. 26. US 

Mean 1,527 Cfsrr 1.91 In. 25.94

Peak dischar (bag

* Discharge measuremen 

t Change in contents i 

nlllions of cut ic feei.. 

Note.--Stage-discharge

10,000 cfs).--Nov. 26 (5 p.m.) 11,500 cfs (9.32 ft), 

made on this day. 

First Conned icut and Second Connecticut Lakes and Lake

relation affe
172 CONNECTICUT RIVER BASIN

Upper Ammonoosue River near Groveton, N. H.

Location. Lat 44°37'30", long. 71°28'10", on left bank 75 ft upstream from highway bridge, 

u.a mile downstream from Nash Stream, and 2§ miles northeast of Groveton, Coos County.

Drainage area.--232 sq mi.

Records available.--August 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 920 ft (from topographic map).

Average discharge.--11 years, 460 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 5,460 cfs Nov. 27 (gage height, 7.58 ft); mini-

 mum, 79 cfs Oct. 8, 9, Sept. 22, 23.

1940-51: Maximum discharge, 7,580 cfs June 3, 1947 (gage height, 8.49 ft), minimum, 

32 cfs Sept. 14, 1948.

Flood in March 1936 reached a stage of about 10.6 ft, from information by local 

residents.

Remarks. Records excellent except those for periods of ice effect, which are fair. Some

 regulation by pond on Nash Stream. Small diversion above station for municipal supply 

of Berlin.

Rating table, water yea^ 1950-51, except periods of Ice effect (gage 

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

3.1 

3.5

4.0

140

290

550

1,380

2,590

4,280

5,290

Day

1

2

3

4

i

7

6

3

10

11

12

13

14

IE

1C

17

IB

19

21

2

-

4

(: | 7

6

^

5i~i

31

T.jtal

^an

(t)

Oat.

97

90

87

94

155

83

81

79

81

151

137

*212

500

308

231

182

162

166

156

150

143

137

134

156

166

225

E68

239

227

219

204 

 

5,118

165

59.0

Nov.

186

169

162

182

843

891

53Z

404

350

*313

290

264

243

227

207

207

231

247

215

204

555

603

375

320

281

1,860

4.520

2,730

2,460

1,840

-

21,911

730

52.9

Dec .

1,260

976

824

*81B

2.050

1,940

1,160

904

1,110

1,250

9B4

846

760

630

525

490

430

370

310

250

300

330

330

300

260

185

175

165

160

200

250

20,524

662

58.8

Jan.

245

235

E40

255

550

300

250

*225

210

2OO

185

180

165

150

170

220

225

190

175

170

200

225

225

210

220

205

ISO

170

160

170

160

6,465

209

61.2

Feb.

190

310

370

3 BO

350

320

300

400

390

340

310

300

300

320

310

2BO

260

270

280

280

260

240

*225

215

210

210

215

215

-

-

-

e,050

288

47.1

Mar.

205

200

190

180

175

170

160

240

230

210

195

200

215

240

280

280

270

255

240

280

270

250

220

235

250

215

205

220

360

740

1,050

B , 450

273

57.2

Ppr.

1,250

1,400

1,500

2,050

2,OOO

1,560

1,470

1,540

1,870

2,520

3,130

*5,100

2,950

2,530

2,190

2,030

1,670

1,360

1,190

1,200

1,040

872

1,420

2,090

1,740

3,060

5.880

2,530

2,440

2,760

"

60,342

2,011

49.5

May

2,220

1,680

1,430

1,14C

944

840

864

856

824

*855

708

645

645

582

550

582

880

1,150

776

622

570

570

526

479

420

355

384

839

880

708

544

25,024

807

50 . 4

Juno

425

404

389

346

350

299

331

341

277

256

*223

200

186

179

186

196

190

179

166

155

137

141

228

223

193

169

140

140

140

169

-

6,956

232

42.3

July

243

264

196

159

257

496

376

251

193

156

157

514

645

374

247

196

225

235

400

608

561

260

247

*211

176

153

140

150

162

166

150

8,344

269

48.1

Aug.

204

179

156

510

320

219

186

150

143

137

123

*118

153

150

140

140

143

204

227

172

146

339

298

215

182

156

179

227

186

150

129

5,781

186

54.2

Sept.

137

156

134

134

126

+112

233

308

211

162

137

120

107

97

102

120

120

115

148

87

85

83

131

190

168

243

204

274

265

19 U

-

4,699

157

56.2

Adjusted for diversion

Mean 

In.

166 732 

0.724 3.16 

0.84 3.5:

^jQ rj ndar v^ar 1950* 

Waf-r ypar 1950-51:

665 

2.87 

3.30

212 

0.914 

1.05

290 

1.25 

1.30

275 

1.19 

1.37

2,014 

8.68 

9.69

810 

3.49 

4.02

observed

lax 4, 520 Min 70 Mear 

fax 4,520 Min 79 [fear

466 

498

234 

1.01 

1.13

272 

1.17 

1.35

189 

0.815 

0.94

16O 

0.690 

0.77

Adjusted

Me in 469 Cfsm 2.02 In. 27.45 

Ilean 500 rfair' 2,16 In. 29.29

Peak discha (base, 2.900 cfE).--Nov. 27 a.m.) 5,460 cfs (7.58 ft); Apr. 11 (10:30 to 11:50
Records available.--March 19

Extremes.--Maximum discharge during year, 18,400 cfs Nov. 26 (gage height, 17.24 ft); 

minimum daily, 275 cfs Sept. 3.

1927-51: Maximum discharge, 48,300 cfs Mar. 20, 1936 (gage height, 25.6 ft); minimum daily, about 80 cfs Sept. 2, 1935.

Remarks.--Records good. Flow regulated by powerplants and by First Connecticut and Second 

Connecticut Lakes and Lake Francis (see p. ), and other reservoirs. These reservoirs have a combined usable capacity of about 8 1/3 billion cu ft.

Revisions (water years).--W 821: 1935(m). W 891: Drainage area.

, in cubic feet per second, year Onoter 1950 tc September 1951

 

Day

1

2

3

4

':

^

7

ti

9

lu

11

12

13

14

15

Ib

17

le

13

2

21

0^

2 =

24

25

2t

27

2B

23

31

Total

Mean

(t)

Oct.

716

895

1,110

729

736

736

729

334

532

*659

680

1,350

1,990

2.290

2,110

1,300

1,110

956

Nov.

2,050

1,810

1,780

2,010

2,490

4,410

3,260

*2,360

1,900

1,590

1,580

1,020

1,230

1,310

980

876

1,120

1,390

1,060| 814

1,020

972

778

891

1,020

1,000

1,380

1,400

1,580

1,090

1,740

2,170

35,063

1,131 -207

1,040

1,830

3,390

2,920

2,360

1,880

5 , 820

15 , 400

15,500

13 , 300

10,900

 

Dec.

7,440

*5,130

4,010

3,890

8,340

11.600

3 , 700

5,550

5,270

6,110

5, 430

4,800

4,920

4, 410

3,870

3,330

2,940

3,000

2,650

1 , 800

1,900

1,700

1,400

1.500

1,700

1,800

1,600

1,500

1,600

2,000

1,950

108,320 121,640

3,611 3,924

+1,077 -277

Jan.

1,900

2,000

2,100

2,050

2,050

1,950

1.200

1,350

*1,450

1,550

2,050

2,300

2.550

2,100

1,850

2,050

2,150

2,100

2,050

2,150

1,350

2,000

2,100

1,900

2,250

2,250

1,900

1,200

1,450

1,800

1,750

58,700

1,894

-1,798

Feb.

1,550

1,900

2.900

2,850

2,800

2,150

1,850

*2,150

2,250

2,000

1,950

1,900

2,200

2,000

2,100

2,100

2,000

1.150

1,800

1,850

2,000

2,100

1,800

1,700

1,450

1,750

2,100

2,150

-

-

-

56,500

2,018

-1,234

Mar.

2,250

2,150

1,800

1.200

1,850

2,050

1,950

2,050

2,250

1,950

1,350

1,850

2,250

2,450

2, 700

2,800

2,eoo

3,000

3,400

3,920

*3,460

2,840

2,370

2,190

2,180

2,420

2,260

2,040

2,600

4,800

9.120

82,100

2,648

-1,407

Apr.

10,500

10 , 800

12,400

14,900

13,600

10,300

8,680

8,930

10,100

12,500

14,700

*15.600

14,900

13,100

11,400

10,600

9,470

7,640

6,110

5,730

5,390

4.520

4,840

7,420

7,260

9,890

14,200

13,200

10,100

9,820

-

308,600

10,287

+3,994

May

9.520

7,160

5,700

4,790

4,040

3,470

3,420

3,420

3,280

*3,240

3,000

2,730

2,720

2,980

2,700

2,440

2,620

4,950

4,940

3,580

3,110

2,850

2,870

2,600

2,360

2,070

1.260

2,160

3,790

3,410

2,980

109,960

3,547

+1,568

June

2.490

2,210

1,390

2,070

1,560

1,600

1,600

1,600

1,830

940

852

1,300

*1,120

1,510

1,740

2,000

967

1,950

1,900

1,370

1,080

1,160

1,180

886

1,650

1,780

1,410

1,110

757

778

-

43,790

1,460 -661

July

711

829

1,300

446

1,360

1,940

2,180

1,230

1,520

908

799

778

2,340

2,400

1,310

1,380

1,180

1,290

1,980

2,540

2.660

1,480

1,580

*1,360

1,130

988

1,080

1,210

453

458

624

41,444

1,337

+440

Aug.

715

1,120

1,200

1,190

959

1,510

972

908

892

868

*940

506

649

988

785

771

900

1,310

875

1,200

980

1,190

1 . 600

996

924

652

694

828

1,140

1,020

948

30,230

975

-279

Sept.

1,070

728

275

608

884

*1,360

1,280

1,320

696

398

1,200

924

924

1,010

1,250

541

1,360

1,360

1,04O

1,280

1,230

1,310

778

1,330

1,640

1,590

1,570

1.950

1,940

1,250

-

34,696

1, 157

-1,203

Adjusted for change in reservoir contents

Mean 

In.

1,054 

0.696 

0.80

4,026 

2.66 

2.97

Calendar year 1950 : 

Water year 1950-51;

3,820 

2.52 

2.91

1,222 

0.807 

0.93

1,508 

0.996 

1.04

2,123 

1.40 

1.62

11,828 

7.81 

8.72

4,133 

2.73 

3.15

Observed

Max 20,800 Min 306 Mean 2,844 

Max 15,600 Min 275 Mean 2,825

1,205 

0.796 

0.89

1,501 

0.991 

1.14

871 

0.575 

0.66

692 

0.457 

0.51

Adjusted

Mean 2,845 rfarn 1.88 In. 25.48 

Mean 2,825 ffsn- 1.87 In. 25.34

Peak discharge (base. 16.500 cfs). Nov. 26 (8:30 p.m.) 18,400 cfs (17.24 ft).
CONNECTICUT RIVER BASIN

Passumpsie River near East Haven, Vt.

Drainage area. --53. 8 sq mi.

Records available .--July 1939 to October 1945, O.-tober 1948 to September 1951.

Gage . --Water-stage recorder. Datum of gage is 945.83 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. --9 years, 98.1 cf s .

Extremes . --Maximum discharge during year, 1,720 cfs Dec. 5 (gage height, 5.49 ft); minimum, 20 cfs Sept . 23 .

1939-45, 1948-51: Maximum discharge , 2,180 cfs May 28, 1940 (gage height, 6.21 ft); 

minimum, 14 cfs Oct. 1, 1948, Aug. 27, 1949.

Maximum stage known, about 12.6 ft some time in November 1927, from information by 

local resident.

Rating tables, water year 195O-51, except periods of Ice effect (gage height, In feet, and 

discharge, In cubic feet per second)

Oct. I to Nov. 26, 

Dec. 5 to Apr. 3

1.0 33

1.2 50

1.5 86

Discharge, In cubic feet pe

Nov. 27 to Dec. 4, 

Apr. 4 to Hay 27

5 78

0 163

5 287

May £8 to Sept. 30

20 1.5 86

31 2.0 179

48 3.0 470

?cond, 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

Tota:

Mean

Cfscn

In.

Oct.

41

39

38

*39

37

36

3535"

35

47

141

113

204 ITS'

83

70

66

72

64

64

59

56

57

72

68

72

62

58

66

67

60

2,072

66.8

1.24

1.43

Nov.

55

54

5T

70

194

125

89

*79

71

78

71

65

60

58

56

57

62

60

54

61

200

118

86

76

71

455 325-

202

174

134

-

3,314

110

2.04

2.29

Dec .

*111

98

94

327

894

302

193

183

224

175

162

154

136

115

105

96

94

84

78

70

60

64

68

70

66

60

54

55

49

5T

62

4,360

141

2.62

3.01

Jan.

56

59

63

*97

54

70

60

62

55

52

52

51

48

46

52

64

57

55

50

47

80

66

54

59

64

46

43

41

41

39

3?

1,762

56.8

1.06

1.22

Feb.

46

62

76

56

49

45 *70~

115 ^70-

60

57

55

54

84

62

56

53

52

70

61

57

54

51

50

49

49

50

52

_

_

-

1,665

59.5

1.11

1.15

Mar.

49

49

46

4545-

46

49

54

49

47

46

47

56

*59

64

70

71

67

70

76

66

59

64

62

70

60

66

65

108

245

565

r 2,335

75.3

1.40

1.61

Apr.

377

381

522

*388

229

235

331

414

477

536

544

520

540

*458

436

580

290

244

232

232

199

183

m

299

£86

896 460"

354

407

396

-

11,584

386

7.17

8.01

May

282

239

204

176

157

147

149

141

*130

122

113

123

145

116

106

100

225

204

138

113

122

161

130

111

97

86

91

420 239"

193

144

4,924

159

2.96

3.40

June

117

114

105

97

123

97

117

97

*82

71

64

60

57

58

66

62

57

54

50

45

41

39

1413"

TTT

82

62

56

55

56

67

-

2,308

76.9

1.43

1.60

July

69

62

49

43

138

119

75

56

45

41

37

93

100

59

46

42

48

41

251 *T5B~

82

63

64

49

41

39

39

36

¥T

37

38

2,099

67.7

1.26

1.45

Aug.

54

35

37

~5T 117

46

38

40

*41

36

32

30

33

31

34

33

38

45

37

31

42

76

51

42

37

32

33

31

29

27

26

1,277

41.2

0.766

0.88

Sept.

28

26

29

31

27

26

44

35

29

*26

24

25

23

22

38

32

29

26

24

22

22

21

BT

44

46

57

39

54

38

33

-

981

32.7

0.608

0.68

Calendar year 1950: Max 1,090 Win 24 Mean 109 Cfsro 2.03 In. 27.40

Water year 1950-51: Max 896 win 21 Mean 106 Cfsro 1.97 In. 26.73
Muose River at Victory, Vt.

Location.--Lat 44°30'40 n , long. 71°5Q'15", on right bank at Victory, Essex Count/, V.I 

miles upstream from highway bridge.

Drainage area.--75 sq mi, approximately.

Records available.--January 1947 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,120 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,550 cfs Dee. 5 (gage height, 3.80 ft); minimum, 15 cfs Sept. 22, 23.

1947-51: Maximum discharge, 2,940 cfs Apr. 21, 1950 (gage height, 10.89 ft), from 

rating curve extended above 1,400 cfs by logarithmic plotting; minimum, 3.7 cfs Sept. 

16, 17, 1948.

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

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)

3.1 

3.5 

4.0

151

224

443

7bU

1,170

Discharge, in cubic feet per second, water year October 195O to September 19dl

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

29

2b

24

30

 34

30

28

26

2b

28

Ib7

186

292

523

ILi91

75

71

c5

bl

eo

El

b9

75

85

73

b3

bS

79

fa9

2,3d2

76. b

1.02

1.18

Nov.

*bO

5fc

56

78

342

352

177

128

107

99

93

til

73

b9

62

65

74

73

63

to

254

140

113

99

2o3

b94

47b

346

*252

-

5,070

Ib9

2 .2b

2 .cl

Dec.

189

155

138

Ibl

1,120

87O

412

262

339

297

224

206

177

142

130

115

105

92

b4

78

72

66

bb

67

54

49

46

4450"

54

5,948

132

2 .56

2.95

Jan.

50

47

47

bO

80

60

52

47

*44

42

39

37

36

36

37

43

46

E8

47

42

45

46

39

50

 i-i

39

37

36

35

3_4

1,419

45.8

0.611

0.70

Feb.

37

60

70

00

b4

52

b2

120

90

b2

bb

70

bO

110

80

70

6b

63

70

100

88

84

74

70

65

70

90

-

-

-

2,107

75 . 2

1.00

1.04

Mar.

80

b8

b2

59

57

5t

58

50

72

b4

60

tb

100

105

110

120

130

105

140

103

96

7t

7b

103

100

89

86

130

265

522

3,330

107

1.43

1.65

Apr.

730

795

694

939

*b79

473

536

644

780

935

1,030

995

 964

811

718

655

£21

400

335

360

322

38T

611

503

891

1,130

697

593

561

-

19,983

666

8.88

9.91

May

429

317

262

206

181

171

Ib5

163

152

*142

124

124

151

124

110

1O8

176

292

174

133

117

123

108

93

79

71

39T

425

318

203

5,779

156

2.48

2.87

June

142

128

133

106

111

92

96

87

b6

56

*48

43

40

38

42

44

42

37

44

35

28

9T

~5T 190

68

48

56

51

93

2,176

72.5

0.967

1.08

July

93

95

60

43

170

357

IbO

34

53

41

35

84

130

*73

46

37

40

43

202

326

131

65

49

38

35

62

53

59

51

43

2,834

91.4

1 .22

1.41

Aug.

104

71

45

194

148

75

51

41

40

*38

32

2 a

373

30

30

32

40

70

72

45

33

124

76

56

44

40

51

42

34

3U

1,928

62.2

0.829

0.96

Sept.

30

33

30

32

28

24

 73

99

5r,

33

31

26

26

23

21

24

23

20

19

17

17

36"

63

45

~ET 105

94

85

55

1,263

42.1

0.561

0.63

Calendar year 1950: Max 2,4HO Mln 12 Mean 146 Cfsm 1.95 In. 26.43

Water year 1950-51: Max 1,130 Min 16 Mean 149 Cfsm 1.99 In. 26.89

rfs 12

1,480 cfs (8.b5 ft)

* Discharge measurement made on this day.

Note.--No gage-height record Feb. 1O to Mar. 19; discharge estimated on oasis of recorded range in 

stage, weather records, and records for Moose River at St. Johnsuury,-Passumpsic River near East 

Haven, and Passumpsic River at Passumpsic. S^aje-diseharge relation affected oy ice Dec. 15 to Fet. 

9 and during much of period of no gage-height record.
CONNECTICUT RIVER BASIN

, Q n left bank at 3r, . Johnsbury, Caledonia

Drainage area .--126 sq mi.

Recoras available. --Aujjst 1928 to September 1951.

Gage. --Water-stage recorder. Altitude of gage is 585 ft (from topographic map). Prior 

fTo Hov. 16, 1934, chain gage at site a quarter of a mile upstream at different datum.

Average discharge .--23 years, L"19 cfs. 

E it retm?s . --Maximum discharge during y

Rating tables, water year 1950-51, except periods of ice effect (gage height, 

in feet, ani discharge, in cubic feet per second)

Oct. 1 to Dee. 4

66

1.6 18

1.9 36

2.2 64

2.6 111

3.;

186

248

3.E 830

3.9 1,150

4.1 1,990

2.7 115 

Discharge, in cubic feet per second, water year October 1350 to September 1951

Day

1

I

'

?

B

d

In

11

12

1;

14

IE

l>-

17

It)

19

20

21

22

23

34

^5

26

27

28

2 9

01 I Jl

Total

Mean

Cf sm

In.

Oct.

3h;

34

32

52

+59

33

34

33

51

35

2lL

250

352

280

160

120

36

90

84

ac

76

72

66

90

9£

110

94

62

84

100

90

3.L08

97.0

0.770

C.S9

Hov .

80

*7o

70

102

402

444

247

169

14u

125

117

104

93

88

32

85

91

94

82

78

304

542

191

151

133

523

752

649

47b

361

~

6,647

222

1.76

1.96

De- .

+ E7B

224

206

328

1,210

1,120

eie

4E5

494

436

351

see

262

2135

130

170

155

135

10 5

80

85

94

96

100

92

80

72

66

64

76

63

8,194

264

2.1U

2.42

Jan.

Bl

78

75

+110

115

90

78

71

70

66

64

S2

eo

62

F4

70

7b

91

76

70

64

98

80

68

79

71

64

62

59

58

DJ_

2,511

74.5

0.591

0.68

Feb.

64

7e

120

130

110

eo

110

185

140

100

105

115

130

+160

125

110

Io5

loo

110

155

135

145

125

115

105

98

105

140

-

-

-

3,300

118

0.937

0.97

Mar.

120

105

96

92

90

88

91

123

120

105

96

106

171

+ 179

191

205

220

194

260

21u

179

151

141

164

230

176

166

266

444 380

1,440

7,205

232

1.84

2.13

Apr.

1,320

+ 1,440

1,570

*1,570

1,210

950

1,040

1,100

1,250

1,520

1,610

1,850

1,760

1,570

1,250

1,130

950

725

+565

554

494

41|

860

eog

1,560

1,660

1,170

980

920

-

34,124

1,137

9 .02

10.07

May

683

470

579

299

257

241

238

234

*216

20>2

181

184

205

181

157

149

213

408

252

1E9

165

179

168

151

153

116

125

594

662

446

502

8,579

270

2.14

2.47

June

206

172

184

157

157

136

+136

131

105

88

72

65

59

58

65

67

64

57

60

56

42

35

59

242

131

104

73

74

75

108

-

3,040

101

0.602

0.90

July

131

134

97

70

189

462

233

132

88

65

52

85

172

121

76

58

57

61

271

+ 477

208

123

98

80

60

53

79

88

85

82

71

4,058

131

1.04

1.20

Aug.

132

118

77

198

215

120

84

65

58

*56

47

40

39

41

40

48

60

90

114

77

63

170

173

116

86

68

57

65

63

49

40

2,669

86.1

0.683

0.79

Sept.

42

44

43

42

38

35

*56

123

84

55

41

35

32

28

28

28

28

25

22

21

20

Ii

26

82

71

lie

94

104

122

79

~

1,585

52.8

0.419

0.47

Calendar year 1350: Max 3,960 

Water year 1350-51: Max 1,850

Min 13 

Min 19

rfsm 1.67 In. 22.60 

Cfsm 1.84 In. 24.95

Peak i la charge (base. 1,700 cfs).--Mar. 31 (5:-30 p.m.) l,85u ?fs (4.07 ft); Apr. 3 (7 p.m.) 2,130 

cfc (4.13 ft); Apr. 12 (7 a.m.) 1,990 ?fs (4.10 ft); Apr. 27 (7 p.m.) 1,900 cfs (4.08 ft).

* Ids charge measurement made on this day.

Mote.--He gage-height reccrd Oct. 8-12,' Oct. 14 tc Nov. 1, June 9-12; discharge estimated on basis 

of weather records, ani reccrds for Mcose River at Victory. Stage-discharge relation affected by 

ice Dee. 14 to Mar. 3, Mar. 5, 6, 9-11.
Drainage area.--436 sq mi.

Records available.--November 132? to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 490 ft (from topographic map).

Average discharge.--S3 years, 725 cfs.

Extremes. - -Maximum discharge during year, 6,580 cfs Dec. 5 (gage height, 10.98 ft); minimum daily, 112 cfs Sept. 22.

1923-51: Maximum discharge, 16,000 cfs Mar. 18, 193C (gage height, 21.23 ft), from 

rating curve extended above 3,200 cfs on basis of computation cf peak flow over dam; 

minimum daily, 13 cfs Sept. 12, 1945.

Maximum stage known, about 31.5 ft in November 1927, from informaticn by local 

resident.

Day

1

2

3

4

5

p

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

rf sm

In.

Oct.

170

182

148

15E

17B

172

172

113

156

+154

597

753

1,050

796

491

410

*302

313

309

297

276

274

267

317

355

392

336

284

E95

354

345

10,370

335

0.768

O.B8

Nov .

278

*274

248

304

1,020

1,010

628

480

415

386

592

333

355

295

286

284

315

321

283

286

926

920

535

486

412

1,680

2,590

1,540

1,360

*1,030

-

19,472

649

1.49

i.se

Dec.

eo7

b63

628

1,110

5,400

2,780

1,500

1,220

l.FUG

1,310

1,110

1,100

920

740

680

670

620

560

510

475

400

430

460

465

450

400

360

370

330

380

410

28,868

931

C.14

2.46

Jan.

370

400

415

621

698

460

370

390

370

+370

360

340

325

310

330

400

380

355

335

330

480

490

370

500

550

340

300

285

2 7O

265

260

12,039

588

0.890

1.03

Feb.

290

430

440

410

350

300

410

720

470

400

370

355

350

*460

510

390

355

340

470

415

380

360

340

330

320

330

350

410

-

-

~

11,055

395

0.906

0.94

Mar.

350

325

310

305

305

300

330

380

350

310

300

400

681

824

827

1,040

1,120

1,030

945

1,200

759

596

486

579

900

640

546

970

1,920

3,460

5,160

27,648

892

2.05

£.36

Apr.

4, 520

*4,000

4, 550

4,450

2,860

2,540

3,170

3,560

3,700

4,150

4,460

4,230

4,300

3,750

3,290

3,070

2,380

2,000

1,820

1,840

1,600

1.420

1,890

2,220

2,010

4.600

4,000

2,540

2,260

2,260

~

93,440

3,115

7.14

7.97

May

1,770

1,450

1,260

1,100

991

928

921

886

830

772

711

747

921

*759

652

601

872

1,390

914

699

663

1,080

772

657

584

502

486

2.420

1,700

1,260

935

30,253

975

2.24

2.58

June

717

645

657

584

623

*557

590

552

435

371

352

291

281

306

356

348

314

303

284

256

229

185

447

958

546

428

306

551

335

444

~

13,051

435

0.998

1.11

July

518

530

370

275

962

1,420

778

459

336

273

248

381

681

462

307

262

290

287

1,310

1,580

+ 719

445

385

338

250

239

361

321

325

327

275

15,692

506

1.16

1.34

Aug.

487

351

279

628

642

389

283

246

*243

288

197

145

228

205

207

217

311

351

346

265

230

571

487

350

284

£33

213

220

223

184

177

9,480

306

0.70Z

0.81

Sept.

175

184

176

192

195

175

208

323

+230

207

142

149

144

130

141

222

180

158

132

125

136

112

165

355

263

389

309

320

366

250

~

6,253

208

0.477

0.53

Calendar year 1950: Max 9,350 

Water year 1950-51: Max 5,400

Mln 59 

Mln 112

Mean 693 

Mean 761

In. 21.56 

In. 23.67

Peak- discharge (base, 5,000 cfs).--Dec. 5 (9 a.m.) 6,580 cfs (10.98 ft); Mar. 31 (10 a.m.) 6,280 

cfs (10.64 ft); Apr. 3 (6 to 7 p.m.) 6,420 cfs (10.80 ft); Apr. 26 (5 to 6 p.m.) 5,840 cfs (10.14 

ft).

* Discharge measurement made en this day.

Note.--Stage-discharge relation affected by ice Dec. 13 to Jan. 3, Jan. 6 to Mar. 12.
73 CONNECTICUT RIVER BASIN

Ammonoosuc River at Bethlehem Junction, N. H.

Location. Lat 44°16'10", long. 71°37'50", on left bank 0.25 mile upstream from Pierce 

Bridge and Bethlehem Junction, 0.8 mile upstream from unnamed tributary entering from 

left, 3 miles east of Bethlehem, Grafton County, and 3.4 miles downstream from Little 

River.

Drainage area,--87.6 sq mi.

Records available.--August 1939 to September 1951.

Sage.--Water-stage recorder. Datum of gage is 1,180.74 ft above mean sea level, datum 

of 1929 (levels by Corps of Engineers).

Extremes. Maximum discharge during year, 9,730 cfs Nov. 26 (gage height, 10.86 ft), 

from rating curve extended above 4,100 cfs by logarithmic plotting; minimum, 43 cfs 

Oct. 8, 9, 10.

1939-51: Maximum discharge, that of Nov. 26, 1950; minimum, 21 cfs Nov. 22, 1947 

(caused by anchor ice upstream), but may have been less in February 1948 during 

period of ice effect.

Remarks. Records excellent except those for periods of ice effect, which are fair.

Rating table, water year 1950-51, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic fe

3.0

4.0 

5.0 

6.0 

8.0

et per

765

1,310

2,110

4,530

econd)

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

ie

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

51

49

47

*48

47

45

44

43

43

44

108

126

290

161

109

92

84

83

80

74

71

67

66

75

75

79

69

66

66

71

67

2,440

78.7

0.898

1.04

Nov.

*63

62

60

70

813

364

213

166

143

132

119

108

99

93

87

89

99

92

82

92

853

328

202

168

152

4.. 560

1,310

1,080

874

497

"

12,870

429

4.90

5.46

Dec.

366

*296

288

671

2,680

703

467

441

1,140

654

524

464

363

296

250

230

210

185

150

115

135

135

140

135

110

74

70

66

64 79"

100

11,601

374

4.27

4.93

Jan.

98

93

*96

100

135

110

92

84

73

*75

80

74

66

58

75

84

66

66

63

70

87

80

74

89

120

98

82

72

*75

68

64

2,567

82.8

0.945

1.09

Feb.

74

240

200

155

130

*120

180

500

250

180

150

140

140

160

135

125

120

125

125

125

115

110

*100

95

100

98

100

110

-

-

"

4,202

150

1.71

1.78

Mar.

77

91

85

78

79

*77

85

120

98

84

87

91

*98

105

130

130

120

110

105

125

125

100

90

100

120

100

91

113

222

464

844

4,344

140

1.60

1.84

Apr.

756

785

*1,570

1,130

487

398

435

487

633

*1,010

1,230

1,190

1,040

785

688

603

457

383

366

404

338

298

1,100

696

617

1.950

886

790

1,170

1,090

-

23,772

792

9.04

10.09

May

699

669

536

407

374

377

363

*366

543

689

423

451

467

371

421

664

685

497

407

413

457

448

383

327

286

250

256

1.200

507

438

352

14,726

475

5.42

6.25

June

293 "2"6~E~

246

223

*248

204

213

181

157

137

125

117

109

109

117

120

109

99

95

86

77

73

79

91

89

82

69

71

69

80

-

4,034

134

1.53

1.71

July

93

99

74

64

189

233

146

99

82

72

66

235

326

159

111

171

389

218

259

290

177

139

*122

105

91

90

148

119

197

137

106

4,806

155

1.77

2.04

Aug.

132

127

99

260

185

127

103

93

93

86

*80

72

79

73

136

122

170

161

161

114

133

Hi

168

137

119

105

165

232

132

106

95

4,176

135

1.54

1.77

Sept.

151

120

125

*125

100

101

429

308

183

141

120

112

99

91

159

194

125

102

92

84

82

75

96

99

95

143

100

246

166

127

-

4,190

140

1.60

1.78

Calendar year 1950: Max 4,360 Mln 32 Mean 220 Cfsm 2.51 In. 34.05

Water year 1950-51: Max 4,360 Mln 43 Mean 257 Cfsm 2.93 In. 39.78

2. 700 cfsl . Nov. 26 (1 p.m.) 9,730 cfs (10.86 ft)j Dec. 5 (3:30 a.

. . p.m.) 3,180 cfs (6.97 ft); Apr. 26 (10 a.m.) 2,980 cfs (6.80 ft). 

Discharge measurement made on this day. 

te. --Stage-discharge relation affected by Ice De

Peak discharge (base, 

efs (8.79 ft); Apr. 3 (

5,780

16 to Jan. 28, Jan. 31 to Mar. 27.
CONNECTICUT RIVER BASIN 

Ammonoosuc River near Bath, N. H.

179

Location.--Lat 44°09 I 15", long. 71°59'10", on left bank 0.4 mile downstream from Wild 

Ammonoosue River and 1-t- miles downstream from Bath, Grafton County.

Drainage area.--395 sq mi.

Records available.--September 1935 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 454.14 ft above medn sea level, datum of 

1929 (levels "by Connecticut River Power Co.).

Average discharge.--16 years, 562 cfs.

Extremes.--Maximum discharge during year, 17,200 cfs Nov. 26 (gage height, 12.14 ft); minimum daily, 96 cfs Oct. 8.

1935-51: Maximum discharge, 27,900 cfs Mar. Ib, 1936 (gage height, 15.40 ft), from 

rating curve extended above 13,000 cfs; minimum daily, 48 cfs Sept. 3, 1H39.

Remarks.--Records excellent .except those for periods of shifting control, which are good, 

and those for periods of iee effect, which are fair. Diurnal fluctuation at low flow 

caused by small powerplants above station.

Revisions.--W 871: Drainage area.

shifting control (gage height, in feet, and discharge, in 3ubie 

feet per second)

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.

Oct.

123 

137

*125

123 

101

117

114

96

110

127

231

381

951

595

380

303

259

243

217

217

183

186

18b

209

217

223

204

174

188

198

*204

7,122

230

0.582

0.67

Nov.

189

176

167

1,440 

1,150

620

448

384

344

314

286

269

246

243

236

244

25b

234

228

1,440

1,080

610

485

417

7,790

4,310

2,270

*2 ,380

1,430

-

29,664

995

2.52

2.81

Dec.

1,090

795

1,020

7,220 

2,330

1,450

1,200

2,280

1,750

1,310

1,290

1,080

867

720

670

600

570

450

325

380

410

410

390

350

270

260

250

240

300

380

31,554

1,018

2.58

2.97

Jan.

370

*365

430

520

400

310

270

260

280

320

280

235

225

230

310

290

240

230

250

350

370

290

400

500

420

320

290

270

260

260

9,905

320

0.810

0.93

Feb.

310

720

470

390 

*344

700

1,700

SBTF

600

510

500

520

600

530

460

430

470

520

480

440

420

400

380

370

360

370

44O

-

_

-

15,044

537

1.36

1.42

Mar.

390

340

330

510 

330

350

480

460

360

330

380

*550

610

800

820

740

660

610

800

700

650

440

550

880

640

500

690

1,170

2,700

4,880

23,810

768

1.94

2.24

Apr.

*3,b90

5,930

5,180

1,890

2,020

2,160

2,250

*3,040

3 , b30

3,490

3,120

2,530

2,310

2,200

1,700

1,450

1,310

1,350

1,160

1,030

2,420

2,250

1,760

4,860

2,930

2,110

2,410

2,610

-

78,520

2,617

6.63

7 .39

May

1,720

1,360

1,070

945 

921

909

*909

927

1,490

1 , 000

1,130

1,300

999

915

1,150

1,460

1,270

975

873

945

933

837

708

620

530

510

2,550

1,700

1,240

969

34,355

1,108

2.81

3.23

June

783 

680

b47

595

*630 

*560

505

470

388

344

306

289

272

272

314

303

292

275

231

214

193

TSa" 176

249

262

226

206

204

176

228

-

10,478

349

0.884

0.99

July

272

32 9

269

188

438 

777

530

356

275

213

178

519

*1,020

 59i7

380

310

989

680

735

909

560

396

337

278

234

198

292

325

480

430

303

13,790

445

1.13

1.30

Aug.

396

448 

321

765

647 

39b

*300

262

243

220

191

186

183

348

356

480

535

520

380

337

595

462

3bO

306

269

243

372

310

237

204

11,065

357

0 . 904

1.04

Sept.

228

300 

275

289

256 

211

620

*669

475

329

269

226

206

183

191

341

286

217

183

181

171

157

T74

240

220

30b

269

450

448

321

-

8,655

288

0.729

0.81

Calendar year 1950: Max 8,260 Min 68 Mean 629 Cfsm 1.59 In. 21.64

Water year 1950-51: Max 7,790 Min 96 Mean 751 Cfsm 1.90 In. 25.80

Peak discharge (base, 6,500 cfs).--Nov. 26 (6 to 7 

8:45 a.m.) 11,900 cfs (10.38 ft}; Apr. 3 (8 to 9 p.m.

.m.) 17,200 cfs (12.14 ft); Dec. 5 (7:45 

11,900 :fs (10.38 ft); Apr. 26 (3:30 p.n

6,930 efs (8.35 ft).

* Discharge measurement made on this day.

Mote.--Stage-discharge relation affected by ice Dec. 15 to Feb. 5, Fet. 7 to Mar. 30. Shiftingcontrol method used May 28 to Aug. 5.
180 CONNECTICUT RIVER BASIN

Connecticut River at Wells River, Vt.

Location.--Lat 44°09'15", long. 72°02'35", on right bank 200 ft downstream from bridge on 

 DT~ST Highway 302, at Wells River, Orange County, 400 ft upstream from Welis River, and 

1,200 ft downstream from Ammonoosuc River.

Drainage area.--2,644 sq mi.

Records available.--December 1949 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 399.75 ft above mean sea level,datum of

Extremes.--Maximum discharge during year, 34,200 cfs Apr. 3 (gage height, 11.55 ft); minimum daily, 680 cfs Oct. 1.

1949-51: Maximum discharge, 39,60n cfs Apr. 21, 1950 (gage height, 12.62 ft); minimum daily, 530 cfs July 30, 1950.

Remarks.--Records good except those f 

lated by pjwerplants and by Fir "~ '" 

Comerford Station Pond (see p. 

about 9ij billion cu ft).

Day

322 

P41

,530

Adjusted for change

Mean

Cf sm 

In.

1,374 

0.7U9

0.82

5,961 

2.2t 

2.52

Calendar year 195,u: 

Water year 195U-E1:

2 . 52

2.90

£ ,404 

u.909

3 , 042 

1.15

4,5fab 

1.73 

1.99

19,570 

7 . 40

d .26

7 ,205 

2 .73 

3.14

Observed

Max 37,400 Min 530 Mean 4,7'J9 

Max 27,700 Min t.BO Mean 4,970

2,359 

u , B92

2,bl4 

1 . Oii 

1.23

1,361 

u. 704 

G.yl

1,451

0.541 

0 . BO

Adjusted

Mean 4,713 cfsm i.7b In. 24.20 

Mean 4,9/1 Cfsi" 1.85 In. 25.52

12

cfa (9.45 ft)."

* Discharge measurement made on ihis day.

t Change In -ontenra In First Connect irm 

Station Pond, in millions of cutic feet.

Note.--otage-didcharge relaritn affected by ice Dee. It-31,

and
CONNECTICUT RIVER BASIN 

Wells River at Wells River, Vt .

Drainage area. --98.4 sq mi.

Records available .--August 1940 to September 1951.

Extremes. Maximum discharge during year, 1,550 cfs Mar. 31 (gage height, 5.24 ft); minimum, 7.0 cfs Oct. 5; minimum daily, 19 cfs Oct. 7.

1940-51: Maximum discharge, 2,220 cfs (revised) June 3, 1947 (gage height, 6.35 

ft), from rating curve extended above 1,300 cfs on basis of computation of flow over 

dam at gage height 3.12 ft; minimum, 5.1 cfs Oct. 6, 1948; minimum daily, 11 cfs Aug. 

27, 1949.

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

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

papers indicated.

951.

1001.

1031.

1051.

1081,

1111.

1141.

1171.

1941-42

1943-44

1944-45

1945-46

1946-47

1947-48

1948-49

1949-50

Date

June 15 

Nov. 9 

Apr. 26 

Mar. 9 

June 3 

Apr. 1 

Dec. 31 

Apr. 21

5.05

5.79

6.35

5.00

t Estimated; previously determined.

Revisions. W 1171: Drainage area. Revised figures of discharge, in cubic feet per 

second, for the high-water period in the water year 1950, and peak discharges in the 

water years 1942, 1946, and 1947, are given herewith. They supersede those published 

in previous water-supply papers.

Month

Water year 1943-50.....

Cfs-days

15,551 

44,767

Maximum

1,570 

1,570

Minimum

240 

14

Mean

516 

123

Per square

5.26 

1.25

Runoff in 

inches

5.86 

16.93

Revised peak discharge .--1941-42: Mar. 9 (11 p.m.) 1,790 cfs; Apr. 16 (4 a.m.) 1,520 cfs.

Rating table, water year 1950-51, except period 3f ice effect (gage 

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

1.4

1.5 

1.7 

2.0

175

311

78u

1,400
COHNECTICOT RIVER BASIN 

Wells River at Wells River, Vt.

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

Day

1

2

3

4

5

6

7

8

a

10

11

12

13

14

15

16

17

IB

19

20

21

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

29

28

*28

24

23

24

19

29

32

27

128

103

124

77

59

51

46

45

43

41

37

36

38

52

48

58

47

41

42

*46

*46

1,471

47.5

0.483

0.56

Nov.

39

36

34

41

154

111

85

69

45

49

47

42

40

41

37

40

45

43

38

36

135

98

57

61

58

450

300

200

*207

164

-

2,802

93.4

0.949

1.06

Dec.

137

119

111

158

750

352

247

222

290

228

202

192

168

144

125

115

110

95

86

84

82

82

81

79

74

58

60

65

58

62

67

4,703

152

1.54

1.78

Jan.

65

*63

78

135

135

82

75

75

73

76

76

72

64

60

66

80

70

67

66

85

140

IS

86

120

90

78

66

56

62

56

47

2,454

79.2

0.805

0.93

Feb.

70

160

130

100

*74

71

220

400

240

190

170

140

110

140

115

*96

85

80

120

115

105

105

100

93

86

84

90

130

_

_

-

3,619

129

1.31

1.37

Mar.

120

100

86

82

82

84

86

125

110

96

89

*95

160

160

170

180

170

155

145

150

130

115

100

115

175

135

1EO

185

337

600

1,240

5,697

184

1.87

2.15

Apr.

996

840

878

766

*508

481

639

786

*756

934

1.240

1,010

1,110

1,010

930

839

615

499

450

432

386

350

501

463

448

1,030

736

517

454

407

-

21,011

700

7.11

7.94

May

332

302

266

244

220

207

*204

197

185

215

185

215

225

185

164

152

185

222

177

154

142

142

129

121

108

100

100

529

362

255

199

6,423

207

2.10

2.43

June

161

139

131

121

123

*105

98

86

79

79

71

64

63

61

77

80

70

70

62

57

52

45

71

104

75

61

51

54

55

97

-

2,462

82.1

0.834

0.93

July

137

103

71

56

98

110

77

58

50

*48

44

93

99

63

50

49

86

65

224

183

95

71

66

58

49

45

45

56

119

76

59

2,503

80.7

0.820

0.95

Aug.

54

46

45

81

61

51

48

*44

43

34

30

26

33

34

133

78

117

133

83

66

78

141

86

69

58

49

51

59

47

44

42

1,964

63.4

0.644

0.74

Sept.

44

38

44

50

42

42

77

*62

42

39

40

41

30

29

33

31

33

34

33

31

30

30

29

38

40

66

44

53

45

34

"

1,224

40.8

0.415

0.46

Calendar year 1950: Max 1,570 Min 14 Mean 128 Cfsm 1.30 In. 17.71

Water year 1950-51: Max 1,240 Min 19 Mean 154 Cfsm 1.57 In. 21.30

(4.41 ft); Mar. 31 (4 p.m.) 1,550 

:30 p.m.) 1,250 cfs (4.77 ft).

Peak discharge (base. 980 cfs).--Dec. 5 (6:30 a.m.) 1,030 efs 

cfs (5.24 ft); Apr. 11 (10 a.m.) 1,390 cfs (4.98 ft); Apr. 26 (1:

* Discharge measurement made on this day.

Note. --No gage-height record Nov. 23-28, Dec. 16 to Jan. 2, Jan. 5-10, 13-27; discharge estimated 

on basis of 1 discharge measurement, weather records, recorded range in stage, and records for Dog 

River at Northfleld Palls, Ayers Brook at Randolph, and South Branch Waits River near Bradford. 

Stage-discharge relation affected by ice Dec. 15 to Mar. 28.
CONNECTICUT RIVER BASIN 

South Branch Waits River near Bradford, Vt.

183

Location.--Lat 44°01'05", long. 72°1£ I 20", on left bank 50 ft (revised) upstream from 

highway bridge, l£ miles upstream from mouth, and 4§- miles west of Bradford, Orange 

County.

Drainage area. 42.7 sq mi.

Records available.--October 1939 to March 1940 (monthly discharge only), April Ia40 to 

September 1951 (discontinued).

Gage.--Water-stage recorder. Altitude of gage is 715 ft (from topographic map). Oct. 

 ?-25, 1939, staff gage 200 ft upstream at different datum. Oct. 26 to Dec. 10, 1939, 

tape gage at present site and datum.

Average discharge.--12 years, 64.8 cfs.

Extremes.--Maximum discharge during year, 974 cfs Mar. 31 (gage height, 3.27 ft); maximum gage height, 4.J8 ft Feb. 16 (ice jam); minimum discharge, 6.3 cfs Oct. 4-7.

1939-51: Maximum discharge, 2,300 cfs June 3, 1947 (gage height, 4.57 ft), from 

rating curve extended above 310 cfs on basis of slope-area determination of peak flow; 

maximum gage height, 4.86 ft Mar. 9, 1946 (ice jam); minimum discharge, 3.7 cfs Aug.

Remarks. --Records good except those for periods of ice effect, which are fair. 

Revisions . --W 1031: Drainage area.

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

Oct. 1 to Feb. 7 Fet . 8 tD Sept. 30

135

290

505

785

1.5 143 .9 30 2.

2.0 325 1.1 54 3.

Note . Same as 

following table 

below 1.1 ft. 

Discharge, in cubic feet per second, water year October 1950 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

Total

Mean

Cfsm

In.

Oct.

8.2

7 .7 

7.2

 6.3

b.3

b .3

6.3

6.8

fa. 6

10

50

38

50

27

19

15

14

13

13

12

10

10

11

ID

17

18

15

13

14

Ib

*14

47b.9

15.4

0.361

0.42

Nov.

13

12 

T?

15

bl

32

22

19

17

17

16

15

14

14

13

14

Ib

15

13

14

67

35

21

24

22

297

100

bo

t9

50

-

1,115

37.2

0.071

0.97

Dec.

42

38

38

91

278

89

b8

83

130

85

81

81

b8

5b

55

54

50

45

38

37

36

3b

35

32

27

27

29

2628"

30

1,849

59. b

1.40

1.61

Jan.

28

27 2~9~

54

12

48

40

36

35

34

34

34

34

32

3E

43

34

32

32

39

68

39

35

54

45

38

34

31

29

23

27

l,17b

38.0

0.890

1.03

Feb.

32

73

BO

45

35

32

80

170

ITT

74

62

56

61

76

51

*43

39

38

52

50

48

46

44

41

38

37

39

58

_

-

-

1 , 590

56.8

1.33

1.38

Mar.

41 

37

3636-

38

*37

50

48

43

38

44

62

67

75

76

70

64

60

63

56

49

47

58

70

58

53

95

IbO

294

754

2,705

87 .3

2.04

2.36

Apr.

430

360

269

214

285

415

406

386

446

450

450

*550

465

402

346

294

258

248

241

220

202

335

234

258

406

241

Zll

208

181

-

9,805

327

7 .66

8.54

Hay

160

135

128

113

110

108

106

100

102

100

138

115

88

78

70

9o

94

72

62

62

70

57

53

49

43

79

283

TUT

115

82

3,162

102

2.39

2.75

June

65

60

59

60

49

*43

39

36

33

31

30

28

32

49

38

33

30

27

22

20

17

4T

47

46

31

23

21

29

54

-

1,153

38.4

0.899

1.00

July

65

28

22

49

47

29

21

17

15

*13

7T

61

30

21

27

46

30

128

66

35

28

23

20

16

14

14

55

77

37

27

1,178

38.0

0 . 890

1.03

Aug.

38

25

40

28

20

17

18

22

17

14

 13

2b

1?

16

20

33

31

23

19

37

52

?a

22

19

17

15

13

12

12

11

712

23.0

0.539

0.62

Sept.

12 

14

23

19

14

16

5138"

22

17

14

15

13

11

12

*13

11

9.8

9.3

8.7

9.3

9.3

19

21

18

28

17

35

21

16

-

536.4

17.9

0.419

0.47

Calendar year 1950: Max 632 

Water year 1950-51: Max 734

Hin 

Hin

61.5

69.8

Cfsm 

Cfsm

1.44

1.63

In.

Peak discharge (base, 500 cfs ).--Nov. 26 (10:30 to 11:30 a.m.) 550 cfs (2.48 ft); Dec. 5 (2 t 

a.m.J 530 cfs (2.44 ft); Mar. 31 (3:30 a.m.) 974 cfs (3.27 ft); Apr. 7 (b:30 to 7 p.m.) 659 cfs 

(2.79 ft); May 28 (3 a.m.) 535 cfs (2.56 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 15 to Jan. 11, Jan. 15 to Mar. 28.
Ompompanoosne River at Union Village, Vt.

Drainage area.--130 sq mi.

Records available.--September 1940 to September 1951.

flage.--Water-stage recorder. Altitude of gage is 435 ft (from topographic map).

Average ;li a charge.--11 years, 195 cfs.

Extremes.--Maximum discharge during year, 1,740 cfs Mar. 31 (gage height, 7.11 ft); minimum, 1C cfs Oct. 4-9, Nov. 24; minimum daily, IS cfs Oct. 5, 3.

1940-51: Maximum discharge, 4,300 cfs June 3, 1947 (gage height, 9.65 ft), from 

rating curve extended above 2,400 cfs on basis of slope-area determination of peal-" flow, 

'iiinimum, 1.7 cfs Oct. 14, 1949; minimum daily, 2.0 cfs yet. 20, 1949.

Maximum stage known, about 14.5 ft in November 1927, from information by local resident .

Remark. Record? excellent except those for periods of ice effect or no gage-height record, which are fair. Plow regulated by Union Village Reservoir (see p.255) since October 1949. Some regulation by Lake Fair lee.

effect (gage height,

in feet, and discharge

Adjusted for change it:

Mean 

rfsm

32.9 

0.253

131 

1.01 

1.12

Calendar year 1950: 

Water year 1950-51:

2 08

1 . F.LI

1.84

120 

0.923 

1.07

193 

1.48 

1.54

291 

2.24 

2.58

1,030

a!s4

231 

1.78 

2.05

Observed

Max 1,560 Min 7.6 Mean 174 

Max 1,590 Min 12 Mean 207

87.4 

0.67C 

0.75

71.6 

0.551 

0.64

56.2 

0 .432 

0.50

43.0 

0.331 

0.37

Adjusted

Mean 175 Cfsm 1.35 In. 18.23 

Mean 207 Cfsir 1.59 In. 21.59

* Discharge measurement made en this day.

t Change in contents in Union Village Reservoir, in millions of cubic feet.

Ncte. No gage-height record Dec. 27-31, Feb. 2-7, July 1-5, Sept. 5-13; discharge estimated on 

basis of 1 discharge measurement, weather records, recorded range in stage, Union Village Reservoir 

records, and records for White River at West Hartford and South Branch Waits River near Bradford. 

Stage-discharge relation affected by ice Dec. 25 to Mar. 4, Mar. 6.
CONNECTICUT RIVER BASIN 

White River near Bethel, Vt.

Location. Lat 43°48'45", long. 72°3y'25", on right bank a third of a mile upstream 

from Locust Creek and if miles southwest of Bethel, Windsor Comity.

Drainage area.- -241 sq mi.

Records available. --June 1931 to September 1951.

Gage. --Water- stage recorder. Altitude of gage is 550 ft (from topographic map). Prior 

 to Oct. 1, 1940, at datum 2.00 ft higher.

Average discharge. --30 years, 488 cfs.

Extreme s . - -Maximum discharge during year, 10,300 cfs Nov. 26 (gage height, 7,41 ft), 

from rating curve extended above 2,000 cfs on basis of slope-area determination at 

gage height 11.46 ft; maximum gage height, 9.94 ft Feb. 7 (ice jam); minimum discharge, 

63 cfs Oct. 9, 10.

1931-51: Maximum discharge, 32,200 cfs Sept. 21, 1938 (gage height, 11.46 ft, 

present datum), by slope-area determination; maximum gage height, 13.20 ft Mar. 9, 

1942 (ice jam); minimum discharge, 28 cfs Aug. 3, 1933, Aug. 22, 1934.

Remarks . --Records excellent except those for periods of doubtful gage-height record, 

which are good, and those for periods of ice effect, which are fair.

Revisions (water years ).--W 756: Drainage area. W 801: 1933(M).

Rating tables, 

height.

r year 1950-51, except periods of Ice effect (gage 

et, and discharge, In cubic feet per second)

Oct. 14 to Sept. 30

1.4 

1.6 

1.9 

2.3 

2.8

1.5 

1.7

173

338

675

135

231

465

870

4.0 

5.0 

6.0

1,390

2,060

3,680

5,880

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

Cfsm

In.

Oct.

75

73

68

67

67

65SB"

65

65

*71

223

228

637

710 35S"

290

242

214

193

174

158

152

147

163

180

180

164

152

152

155

144

5,755

186

0.772

0.89

Nov.

135

132

132

1ST

*594

440

320

*269

254

242

220

210

193

183

174

170

232

231

203

215

882

527

362

339

316

5,620

2,09O

1,220

1,030

832

-

17,921

597

2.48

2.77

Dec.

682

590

568

1,810

4,200

1,680

1,150

1,030

1,400

1,070

889

804

656

545

*484

465

431

388

280

260

290

320

310

265

215

190

2~OTf

220

210

250

255

22,107

713

2.96

3.41

Jan.

225

225

230

400

600

400

290

270

260

280

290

280

250

200

250

*320

260

250

250

340

750

5DTT

320

400

410

320

240

215

210

200

190

3,625

310

1.29

1.49

Feb.

350

750

500

360

290

270 400"

1,400

6T50"

600

560

460

470

750

500

400

350

355

380

400

380

360

340

310

330

340

390

450

-

-

-

13,135

469

1.95

2.03

Mar.

370

340

340

310

310

325

350

450

360

330

320

352

*436

454

448

454

419

408

377

408

340

330

300 352"

570

430

370

531

888

2,760

4,040

18,502

597

2.48

2.86

Apr.

2 , 470

2,440

*2,020

1,460

1,220

1,260

1,600

2,100

2,240

2,890

3,590

3 , 140

3,010

2,880

2,560

2,100

1,600

1,290

1,160

1 , 130

1,040

984

1,50TT

1,570

1,350

2,790

1,910

1,540

1,490

1,280

-

58,014

1,934

8.02

8.95

May

1,050 9~2T

813

698

*622

560

524

510

491

484

448

630

614

504

448

414

436

478

408

372

352

372

329

307

282

261 2"74"

580

440

370

. 310

15,308

494

2.05

2.36

June

260

230

225

215

210

190

165

155

140

130

125

*120

115 T10~

350

250

190

170

160

150

130

120

140

230

190

180

150

135

140

261

-

5,346

178

0.739

0.82

July

460

334

235

193

439

666

371

261

d200

d!70

d!50

34T

403

261

203

182

*349

265

1,050

(3830

d465

d395

d340

d260

d215

dies

d!60

440

728

419

316

11,287

364

1.51

1.74

Aug.

286

258

224

£86

242

d!90

d!60

d!55

d!65

dl50

d!35

d!30

d!60

d!45

d!40

d295

418

290

231

206

258

443 290"

235

203

180

161

147

141

*128

119

6,571

212

0.8BO

1.01

Sept.

147

160

290

214

167

156

303

320

52T3"

177

155

147

132

*122

234

203

152

132

120

109

104

99 152~

220

170

265

190

254

210

177

-

5,541

185

0.768

0.86

Calendar year 1950: Max 6,590 Mln 43 Mean 478 Cfsm 1.98 In. 26.93

Water year 1950-51: Max 5,620 Mln 65 Mean 518 Cfsm 2.15 In. 29.19

Peak discharge (base, 5,600 cfs).--Nov. 26 8:30 a.m.) 10,300 cfs (7.41 ft); Dec. 5

7,250 cfs 16.48 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

weather records and records for station at West Hartford.

Note. No gage-height record May 28 to June 29; discharge estimated on basis of 1 discharge measurement, recorded graph, weather records, and records for station at West Hartford. Stage-discharg 

relation affected by ice Dec. 19 to Mar. 11, Mar. 21-23, 25-27.

288890 O - 54 - 13
CONNECTICUT RIVER BASIN

Ayers Brook at Randolph, Vt.

Location.--Lat 43°56'05", long. 72°39'30", on right bank 55 ft upstream from bridge on 

State Highway 12, just north of village limits of Randolph, Orange County, 0.4 mile 

upstream from Adams Brook, and 1.2 miles upstream from mouth.

Drainage area.--30.5 sq mi.

Records available.--July 1939 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 632.75 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--12 years, 46.8 cfs.

Extremes.--Maximum discharge during year, 696 cfs Dec. 5 (gage height, 3.94 ft), from 

rating curve extended above 400 cfs by logarithmic plotting; minimum, 5.6 cfs Oct. 

3-10.

1939-51: Maximum discharge, 2,120 cfs Dec. 31, 1948 (gage height, 6.41 ft), from 

rating curve extended above 180 cfs by logarithmic plotting; minimum, 1.2 cfs Aug. 

27, 1949.

Maximum stage known, about 16 ft in November 1927, from information by local 

residents.

Remarks.--Records excellent except those above 250 cfs, which are good, and those for 

periods of ice effect, 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)

1.1

1.5

124

221

350

520

65

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.

Oct.

6.2

5.8

5.6

5.6

5.6

5.6

5.6

5.6

*5.6

9.3

43

24

20

15

13

11

11

9.8

9.4

9.0

8.4

8.4

8.8

13

14

14

12

11

11

11

10

347.3

11.2

0.367

0.42

Nov.

9.4

9.0

*8.7

18

51

27

21

18

18

17

16

16

15

15

14

14

17

16

14

18

50

29

22

21

22

214

94

73

77

61

-

1,015.1

33.8

1.11

1.24

Dec.

54

49

49

145

521

121

95

103

118

*90

85

81

71

62

57

54

52

48

45

40

37

37

37

37

33

26

27

29

26

28

29

2,086

67.3

2.21

2.54

Jan.

23

28

29

68

50

35

29

30

28

30

30

30

28

24

30

*33

27

27

27

33

50

28

28

35

35

28

26

23

25

23

2_1

966

31.2

1.02

1.18

Feb.

26

60

50

40

34

32

68

150

80

60

50

45

56

80

*45

40

38

39

42

41

40

38

36

34

35

35

43

46

_

_

-

1,383

49.4

1.62

1.69

Mar.

36

37

34

34

34

32

34

*41

33

28

34

34

43

45

45

48

52

53

46

48

43

42

37

41

51

45

42

76

100

259

425

1,952

63.0

2.07

2.38

Apr.

332

*359

303

249

210

282

357

367

351

384

390

339

344

336

300

239

193

162

149

134

117

109

154

120

121

251

156

127

121

105

-

7,161

239

7.64

8.73

May

90

81

74

69

*61

58

57

*55

50

51

49

63

56

45

41

38

47

50

40

36

34

34

31

31

28

25

29

71

39

35

30

1,498

48.3

1.58

1.83

June

6

5

6

5

4

1

0

18

17

15

14

*14

13

17

28

21

17

17

17

13

11

9.8

20

22

18

15

11

10

13

28

-

545.8

18.2

0.597

0.67

July

38

22

16

13

23

22

15

12

9.4

8.2

7.3

26

24

14

11

8.7

*12

11

78

40

23

18

15

13

11

9.8

9.0

24

32

19

15

599.4

19.3

0.633

0.73

Aug.

16

15

12

16

12

9.4

8.4

9.4

11

8.2

7 3

ste

14

9.0

10

17

26

18

13

12

19

31

18

*14

12

11

9.4

9.8

9.0

8.4

8.2

402.3

13.0

0.426

0.49

Sept.

9.4

9.4

14

11

8.2

1-0

32

25

15

11

10

10

9.0

8.4

12

10

*8.4

7.9

7.6

7.1

7.1

6.8

10

11

10

15

11

12

9.8

8.7

-

336.8

11.2

0.367

0.41

Calendar year 1950: Max 495 Mln 1.3 Mean 43.7 Cfsm 1.43 In. 19.47

Water year 1950-51: Max 435 Min 5.6 Mean 50.1 Cfsm 1.64 In. 22.31

Peak discharge (base, 350 cfs). --Nov. 26 (12 m.) 412 cfs (3.20 ft); Dec. 5 (l a.m.) 696 cfs (3.94

ft); Mar. 31 (7 to 8:30 p.m. 497 cfs (3.44 ft); Apr. 7 (9 to 10 p.m.) 596 cfs (3.69 ft).

* Discharge measurement made on this day.

Note. --Stage-discharge relation affected by Ice Dec. 16 to Mar. 3, Mar. 10, 11, 20, 21, 23-27.
CONNECTICUT RIVER BASIN 18 

White River at West Hartford, Vt.

Location. Lat 43°42'45", long. 72°25'10", on left bank 500 ft upstream from highway 

Drldge at West Hartford, Windsor County, and 7 miles upstream from mouth.

Drainage area.--69Q sq mi.

Records available.--June 1915 to October 1927, October 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 374.53 ft above mean sea level, datum of 

 T929. Prior to Oct. 30, 1927, staff gage at same site and datum.

Average discharge.--35 years (1915-27, 1928-51), 1,172 cfs.

Extremes.--Maximum discharge during year not determined; maximum gage height, 13.83 ft 

i>'eo. 8 (ice jam); minimum discharge, 82 cfs Oct. 6 (gage height, 2.56 ft); minimum 

daily, 90 cfs Oct. 7.

1915-51: Maximum discharge, 120,000 cfs Nov. 4, 1927 (gage height, 29.3 ft, from 

floodmarks), by slope-area determination; minimum observed, about 35 cfs Aug. 4, 1918 

(gage height, 2.22 ft); minimum daily, 64 cfs Aug. 4, 1918.

Remarks.--Records excellent except those for periods of ice effect or doubtful or no 

gage-height record, which are fair. Some diurnal fluctuation at low flow caused by 

powerplant above station.

Revisions (water years).--W 756: Drainage area. W 781: 1928(M). W 871: 1919, 1922, 

isab, iszb (yearly summaries only). W 1031: 1916 (in) , 1923.

ating tabl< er year 1950-51, except periods of ice effect ( 

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

2.6 

3.0 

3.5 

4.0

190

383

630

6.0 

7.0 

9.0 

11.0

2,510

3,910

7,300

12,400

cond, 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.

Oct.

137

*146

250

155

134

106

9058"

113

175

302

602

606

1,080

55?

495

410

357

327

294

278

255

255

263

315

315

302

286

286

*275

255

9,616

310

0.449

0.52

Nov.

263

223 5~45

248

709

913

619

510

447

433

392

379

374

336

327

315

336

414

357

340

1,170

1,100

722

630

575

a8,500

a4 , 200

a2,660

a2,190

al,830

-

31,760

1,059

1.53

1.71

Dec.

al,500

al,310

al,180

a3 , 500

a8,500

a3,600

a2,720

a2,480

a3,120

a2,540

a2,140

a2,000

*1,710

1,470

1,290

1,230

1,180

1,110

890

660

800

760

820

800

620

480

5TO

560

530

580

600

51,190

1,651

2.39

2.76

Jan.

550

540

560

900

1,500

1,050

800

620

*640

620

680

700

620

530

600

760

660

640

630

780

1,550

1_,650

5T3D

1,100

1,400

900

730

560

580

540

490

24,680

796

1.15

1.33

Feb.

480 1,500"

1,600

920

760

680

1,000

3,500

1,800

1,600

1,500

1,200

1,300

1,900

1,400

1,100

940

970

1,100

1,050

1,000

980

900

850

920

940

1,050

1,250

_

_

-

34,490

1,232

1.79

1.86

Mar.

1,000

920

920

860

840

900

960

1,250

1,000

830

900

880

1,300

1,300

1,200

1,200

1,150

1,100

1,000

1,100

940

880

800 9~72~

1,510

1,240

1,000

1,450

2,420

6,290

11,800

49,912

1,610

2.33

2.69

Apr.

7,540

7,370

6,350

4,830

4,040

4,160

5,700

6,680

6,600

*7,640

8,740

8,050

7,930

7,200

6,740

5,880

4,540

3,790

3,360

3,190

2,860

2,640

3,920

3,660

3,190

5,850

4,510

3,490

3,320

*2,960

-

156,730

5,224

7.57

8.45

May

2,440

2,150

1,920

1,730

1,560

1,430

1,360

1,320

1,260

1,230

1,160

1,570

1,560

1,250

1,140

1,020

1,030

1,240

1,060

920

876

942

807

762

703

636

575

1,670

1,220

1,060

869

38,574

1,244

1.80

2.08

June

742

654

636

630

602

*550

495

452

414

379

357

340

323

344

630

648

500

424

392

357

315

278

3TT

529

442

424

349

298

306

535

-

13,656

455

0.659

0.74

July

880

722

535

410

652

1,060

750

540

428

*353

315

54T

882

580

424

370

508

500

1,330

1,700

958

710

642

520

428

374

323

474

1,380

841

619

20,749

669

0.970

1.12

Aug.

570

525

452

505

485

406

344

336

353

340

302

259

33T

332

294

416

912 6~4~8~

515

*447

545

896

684

520

437

414

379

340

332

294

271

13,885

448

0.649

0.75

Sept.

286

323

526

480

374

356

628

762 549"

414

366

344

319

290

*294

414

344

282

259

237

227

216 2~23~

422

344

415

388

428

419

332

-

11,261

375

0.543

0.61

Calendar year 1950: Max 14,400 Mln 90 Mean 1,105 Cfsm 1.60 In. 21.74

Water year 1950-51: Max 11,800 Min 90 Mean 1,251 Cfsm 1.81 In. 24.62

ak discharge (base, 11,600 efs). Nov. 26 (time and discharge unknown); Dec. 5 (time unknown) 

about 12,000 cfs; Mar. 31 (10:30 to 11 a. m.) 13,600 cfs (11.45 ft).

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on basis of recorder graph, available 

outside-gage readings, recorded change in stage when Intakes were flushed, weather records, and 

records for White Hiver near Bethel.

Note. Stage-discharge relation affected by ice Dec. 19 to Mar. 23, Mar. 27.
lbb CONNECTICUT RIVER BASIN

Connecticut River at White River Junction, Vt.

Location.--Lat 43°33'50", long. 72°18'45", on right bank 50 ft downstream from railroad 

bridge at White River Junction, Windsor County, and 500 ft downstream from White River.

Drainage area.--4,092 sq mi.

Records available.--October 1911 to September 1951.

Ciage.--Mater-stage recorder. Datum of gage is 321.52 ft above mean sea level, datum of

 T929. t'rior to June 16, 1918, painted staff gage on downstream side of pier of railroad bridge 50 ft upstream at same datum. June 16, 1918, to Nov. 2, 1930, chain gage 

at various locations on upstream and downstream sides of railroad bridge at same datum.

Average discharge.--40 years, 7,191 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 41,800 cfs Apr. 11, 13 (gage height, 17.84 ft); 

minimum daily, 350 cfs Nov. 4.

1911-51: Maximum discharge, 136,000 efs Nov. 4, 1927 (gage height, 35.0 ft, present 

site), from rating curve extended above 70,000 efs by logarithmic plotting; minimum 

daily, that of Nov. 4, 1950.

Remarks.--Records good except those for periods of doubtful gage-height record below 2,500 

el's, and those for periods of ice effect or no gage-height record, which are fair. Flow

-JarpnlofdH htr n ^T.ra >T n "I n r. t c? on.^1 Vnr W-ivia-t- P r^nn a ,1 +- n n 111 QnH ^onnnfl fnnno p t. "1 ^n t T.alfpc! T.fllfP

255)

and other reservoirs (combined usable capacity, about 12-q- billion cu ft. 

Cooperation. --Wire-weight gage readings furnished by United States Weather Bureau. 

Revisions Hater years ) .--W 741: 1932 (adjusted monthly and yearly figures only). W 781:

19'JB (W) . w B91: Crainage area.

ar 1950-51, except peri 

and discharge, in cubic

ids of ice effect 

feet per second)

DI=^harge, in cijbic feet pe

Day

(t)

?82,330

9,107

+ 1,472

Adjusted for change in reservoir

Mean 

Cfsm 

In.

5,162

1.26

1.31

Calendar year 1950= Max 42,500 

Water year 1950-51: Max 40,400 Min 350 Me

Mean 

Mean

6,711

7,155

1.64 In. 

1.75 In.

Peak discharge (base. 34,000 efs).--Mar. 31 (1:30 to 2:30 p.m.) 40,100 cfs (17.43 ft); Apr. 4 

(8 to 10 p.m.) 40,000 cfs (17.41 ft); Apr. 11 (11:30 p.m.) 41,800 cfs (17.84 ft); Apr. 13 (12:30 

p.m.) 41,800 cfs (17.84 ft).

* Discharge measurement made on this day.

t Change in contents in First Connecticut and Second Connecticut Lakes, Lake Francis, Comerfori, 

Station Pond, and Union Villarge Reservoir, in millions of cubic feet.

a Ho gage-height record; discharge estimated on basis of weather records, records for White River 

at West Hartf'Tl, and powerplant records.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed from recorder graph adjusted on basis of weather 

records, observer's twice-daily wire-weight gage readings, records for White River at West Hartford, 

and powerplant records.
CONNECTICUT RIVER BASIN 

Mascoma River at West Canaan, N. H.

189

downstream from Indian River, and 3j miles west of Canaan. 

Drainage area.--80.5 eq mi.

Records available.--July 1939 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 835 ft (from topographic map). 

Average discharge.--12 years, 117 cfs.

Extremes. --Maximum discharge during year, 2,370 cfs Apr. 3 (gage height, 7.04 ft); minimum, 7.6 cfs Oct. 4.

1939-51: Maximum discharge, 2,510 cfs June 15, 1942 (gage height, 7.30 ft); minimum, 4.9 cfs July 7, 1941.

Flood in September 1938 reached a stage of 9.6 ft, from floodmarks (discharge, 

4,310 cfs, from rating curve extended above 1,900 cfs on basis of slope-area determination of peak flow).

Remarks.--Records good except those for period of ice effect, 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)

0.6

Oct. 1 to Apr. 3

7.6 2.0

15 2.5

Apr. 4 to Sept. 30

1.1 29 5.0 350 

1.5 59 4.0 675

Note.--Same as following table 

above 4.0 ft.

40

136

360

675

1,100

1,640

1,990

charge, 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

IB

19

20

21

23

24

25

26

27

2B

29

30

31

Total

Mean

Cfsm

In.

Oct.

11

10

9.e

*8.3

8.6

8.6

8.6

8.6

8.6

9.6

24

35

61

38

26

22

19

18

17

16

15

14

14

17

18

19

18

17

16

16

18

549.5

17.7

0.220

0.25

Nov.

15

15

14

*16

*91

75

47

37

30

28

26

24

23

21

23

26

23

23

71

66

43

40

34

914

919

438

371

258

-

3,767

126

1.57

1.74

Dec.

198

162

135

135

*552

389

224

194

336

235

192

184

158

115

100

90

7B

66

52

45

42

45

47

50

42

35

33

31

30

35

38

4,048

131

1.63

1.B7

Jan.

39

38

45

60

*85

70

62

55

49

46

48

44

43

42

45

60

50

46

45

49

56

62

60

90

150

130

100

64

54

50

44

1,881-

eo.7

0.754

0.87

Feb.

43

70

*90

82

75

64

90

280

280

190

140

120

110

135

120

105

90

98

110

95

90

85

81

77

75

73

80

32

_

_

-

3,038

108

1.34

1.40

Mar.

78

*74

66

64

63

62

64

86

74

68

64

64

80

92

110

125

120

120

115

115

130

115

95

110

140

120

105

130

254

524

*1,190

4,617

149

1.85

2.13

Apr.

1,150

1,020

1,480

1,750

898

633

668

750

705

689

790

826

842

76b

622

546

447

366

320

305

273

252

405

472

360

679

591

396

345

305

-

19,629

654

8.12

9.07

May

245

214

*182

164

147

136

131

124

118

10 B

107

198

174

133

114

104

100

104

91

84

76

73

66

78

99

70

64

298

543

318

214

4,677

151

1.B8

2.16

June

178 136'

116

103

93

77 *se

58

52

46

39

36

33

34

52

57

46

46

86

58

43

36

40

6B

48

39

31

31

31

54

-

1,833

61.1

0.759

0 . 85

July

87

74

51

38

49

55

43

35

30

26

24

67

146

63

45

35

42

41

86

174

81

58

51

41

37

34

*29

76

166

96

el

1,947

62.8

0.780

0.90

Aug.

54

46

39

40

33

29

28

29

27

25

22

38

30

25

32

#120

74

58

57

140

232

135

88

72

7B

77

62

52

45

40

1,873

60.4

0.750

O.B7

Sept.

42

51

195

126

80

65

119

93

*66

55

48

4B

43

38

69

97

66

53

46

41

37

34

34

40

41

81

53

54

52

42

-

1, 908

63.6

0.790

0.8B

Calendar year 1950; Max i 61O Mln 5 7 Mean 108 Cfsm 1.34 In. 18.20

Water year 1950-51; Max 1,730 Mln 8.3 Mean 136 Cfsm 1.69 In. 22.99

Peak discharge (ba 950 cfs) .--Nov. 26 (7 to 9 p.m.) 1,560 cfs (5.87 f t) j Mar. 31 (6 to 8:30p.m.) 

------- ' .s (7.04 ft) .
190 CONNECTICUT RIVER BASIN 

Mascoma River at Mascoma, N. H.

Location.--Lat 43°39 I 00", long. 72°11'05", on left bank at Mascoma, Grafton County, "50 ft 

downstream from railroad bridge and 1,000 ft downstream from outlet of Mascoma Lake.

Drainage area.--153 sq mi.

Records available.--August 1923 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 740 ft (from topographic map).

Average discharge.--28 years, 213 cfs (adjusted for storage since October 1928).

Extremes.--Maximum discharge during year, 2.70U cfs Apr. 4 (gage height, 5.62 ft), from 

rating curve extended above 1,500 cfs; minimum daily, 33 cfs Nov. 26.

1923-51: Maximum discharge, 5,840 cfs Mar. 19, 1936 (gage height, 7.50 ft), from 

rating curve extended above 2,500 cfs on basis of computation of flow over dams at gage 

heights 6.35 and 7.50 ft; minimum daily, 2 cfs Feb. 3, 1929, Sept. 1, 1940.

Remarks. Records excellent except those for periods of no gage-height record or shifting 

control, which are good. Flow regulated by Mascoma and Crystal Lakes and Goose and 

Grafton Ponds (see p. 255).

Revisions (water years). W 726: Drainage area. W 801: 1925(M).

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

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

Apr. 5 to Sept. 30

1.2

1.5 

2.0 

2.5

179

329

515

985

1,710

2,980

1.2

1.5 

2.0

56

107

235

3.0 635

4.0 1,210

5.1 2,150

;coni, water year October 1950 to September 1951

Day

1

2

3

4

5

f

7

8

9

10

11

12

13

14

15

IF

17

la

19

"1

22

23

24

25

26

27

28

29

30

31

Total MftT

Oct.

62

BIT

60

*60

60

60

60

60

59

59

59

59

59

59

59

59

59

57

57

57

57

57

57

57

57

56

56

56

56

5454"

1,803

58.2 

-114.3

Nov.

54

54

54

*54

54

54

56

56

56

56

56

56

56

54

54

54

54

54

52

52

52

52

54

54

50

33

iIT

319

380

389

-

2,587

86.2 

+380.2

Dec.

316

244

213

211

*320

562

575 4~ST

327

248

286

280

216

195

179

167

162

155

141

132

130

130

128

128

128

128

126

126

126

124

122

6,789

219 

+44.2

Jan.

122

119

119

*119

117

117

117

117

117

115

115

113

113

113

111

111

111

111

109 TO9~

1O9

109

109

111

111

111

113

113

143

160

1ST

3,641

117 

+2.9

Pet.

155

155

155

*155

155

153

155

157

162

167

169

187

219

233

258

258

255

252

258

267

264

264

261

258

255

252

258

274

_

-

6,009

215 

-19.3

Mar.

270

 280

296

286

290

296

290

290

286

283

280

270

267

57(7

280

290

293

296

303

312

371

407

430

445

441

437

437

430

433

482

693

10,734

346 

-112.2

Apr.

*1,250

1,670

1,730

2,220

2,140

1,590

1,250

1,220

1,240

1,180

1,150

1,210

1.05O

1,020

1,190

1,160

1,090

948

757

571

492

514

476

440

554

850

984

884

623

386

-

31,839

1,061 

+307.3

Maj

307

329

*356

*348

333

310

275

226

205

197

189

189

192

197

194

192

192

168

141

141

139

139

139

139

139

121

78

IfT

171

365

472

6,724

217

+80.5

June

334 2~SF

268

242

207

*173

152

151

148

143

141

139

136

134

127

103

103

103

103

103

103

101

101

101

101

101

101

99

3?

99

-

4,302

143 

-164.7

July

99

89

73

73

73

73

73

72

78

105

105

105

102

72

72

94

107

105

105

90

6975-

92

107

107

*107

98

72

72

84

111

2,754

88.8 

+22.5

Aug.

109

109

95

73

73

86

107

105

103

89

76" 70

103

103

101

99

*95

97

97

95

89

89

95

97

99

99

109

127

T2T

125

125

3,064

98.8

-15.0

Sept.

122

122

122

^25

127

127

127

108

*78

156

136

154

134

131

129

129

129

129

129

129

127

109

71

122

120

120

120

118

118

118

-

3,646

122 

-59.5

Adjusted for change in reservoir

Mean 

Cfsm

15.5 

0 . 101 

0.12

233 

1.52 

1.70

Calendar year 1950: 

Water year 1950-51;

236 

1.54 

1.77

119 

0.778 

0.89

207 

1.35 

1.41

304 

1.99 

2.29

1,180 

7.71 

8.60

247

1.61 

1.86

Observed

Max 1,640 Min 30 Mean 189 

Max 2,220 Min 55 Mean 250

79.9

0.522 

0.58

97.2

0.655 

0.73

93.2 

0.609 

0.70

98.6

0.644 

0.72

Adjusted

Mean 186 rfsm 1.22 In. 16.51 

Mean 241 Cfsrr: 1.58 In. 21.57

* Discharge measurement made on this day.

t Change in contents in Mascoma and Crystal Lakes, and Goose and Grafton Ponds, in millions of 

cubic feet.

Note. No gage-height record Dec. 20, 21, 23-28, Dec. 30 to Jan. 3, July 1-5, 7-25; discharge estimated from gage-height graph baaed on weekly staff-gage readings and records of gate operation at 

Mascoma Lake. Shifting-control method used Mar. 30 to Apr. 4.
Ottauquechee River at North Hartland, Vt.

Location.--Lat 43°36 I 05", long. 72°21'20", on left bank 300 ft upstream from highway

 bridge at North Hartland, Windsor County, and 1 mile upstream from mouth.

Drainage area.--"SI sq mi.

Records available.--October 1930 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 336.77 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--£1 years, 391 cfs.

Extremes.--Maximum discharge during year, 7,140 cfs Mar. 31 (gage height, 9.14 ft); min-

 Imum, 9.2 cfs Oct. 21; minimum daily, 16 cfs Oct. 1.

1930-51: Maximum discharge, 24,400 cfs Sept. 21, 1938 (gage height, 17.68 ft), 

from rating curve extended above 5,400 cfs on basis of computations of flow over dams 

at gage heights 15.53, 17.68, and 21.5 ft: minimum, 2.9 cfs July 31, 1933; minimum 

daily, 3.8 cfs July 3, 1933.

Maximum stage known, 21.5 ft in November 1927, from floodmarks (discharge, 30.40U 

cfs, by computation of flow over dam).

Remarks.--Records excellent except those for periods of ice effect, which are fair.

 Flow regulated by powerplants above station. Small seasonal storage in reservoir at 

Plymouth.

Rating table, 

height,

ater year 1950-51, except periods 

n feet, and discharge, in cubic f

1.3 

1.5 

1.7 

2.1

2.5

5.0 

3.5 

4.0

123

249

440

685

of ice effect ( 

et per second)

4.5 

5.0 

6.0 

B.I

970

1,360

2,420

5, 420

seharge, 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.

Oct.

16

51

*40

51

34

39

30

21

41

63

109

145

119

205

136

108

86

73

72

77

30

49

70

59

80

74

77

59

60

89

85

2,248

72.5

0.328

0.38

Nov.

41

71

*65

58

124

156

112

96

84

86

65

55

92

70

60

62

63

44

64

83

219

236

129

140

123

2,870

1,290

665

580

458

-

8,261

275

1.24

1.39

Dee.

370

311

302

*619

2,750

1,030

702

819

1,180

828

702

645

540

467

390

380

360

340

270

210

250

240

250

250

200

180

190

200

190

200

200

15,565

502

2.27

2.62

Jan.

200

190

210

*310

550

350

270

240

220

250

240

230

210

180

210

250

210

210

210

240

410

420

270

420

500

320

250

200

220

210

200

8,400

271

1.23

1.41

Feb.

200

430

430

*331

295

268

480

1.500

570

430

420

400

599

774

520

420

370

366

374

358

339

355

312

270

270

292

332

467

_

_

-

11,752

420

1.90

1.98

Mar.

325

298

*292

271

281

260

275

390

330

270

275

306

358

570

383

413

395

383

350

360

546

351

280

559

555

431

354

491

670

2,040

*5, 500

17,722

572

2.59

2.98

Apr.

2,970

2,590

2,260

1,750

1,410

1,510

2,100

2,320

2,550

2,930

4.060

3,350

3,660

2,700

2,240

1,940

1,530

1,240

1,130

1,090

970

898

1,440

1,510

1,060

2,320

1,600

1, 150

1,030

934

-

57,862

1,929

8.73

9.74

May

778

690

650

*565

510

472

454

418

404

379

370

605

540

440

383

354

543

379

320

281

311

512

346

306

275

237

239

816

485

383

335

13,560

437

1.98

E.28

June

278

240

243

252

252

*212

187

195

105

83_

142

130

118

134

267

264

201

182

156

150

129

107

99

177

151

144

127

104

104

227

-

5, 140

171

0.774

0.86

July

372

248

183

142

167

232

186

142

134

104

99

162

271

178

131

121

173

154

334

370

225

180

196

158

131

*102

97

223

655

396

247

6,511

210

0.950

1.10

Aug.

226

229

185

225

198

170

142

144

142

159

108

105

118

117

li

126

*409

252

188

176

202

503

5lT

223

201

180

168

163

178

148

134

5,909

191

0.864

0.99

Calendar year 1950: Max 4,870 Min 7.0 Mean 354 Cfsm i 60 !" 21 77

Sept.

134

162

440

288

212

191

412

*476

298

240

206

201

185

163

168

163

149

142

127

119

114

98

113

151

145

148

144

165

147

136

-

5,833

194

0.878

0.98

Water year 1950-51: Max 5,300 Min 16 Mean 455 Cfsm 1^97 In. 26'. 71

Peak discharge (base, 5,500 cfs). Nov. 26 (10 a.m.) 6,360 cfs (8.68 ft): Mar. 31 (8 a.m.) 7.140

cfs (9.14 ft); Apr. 11 (7 p.m.) 5,850 cfs (8.37 ft).

* Discharge measurement made on this day.

Note. --Stage-discharge relation affected by ice Dec. 15 to Feb. 3, Feb. 7-11, 15-17, 24, 25, Mar.

1, 6, 8-11, 20, 23.
CONNECTICUT RIVER BASIN

ugar River at West Claremont, N. H.

Location. Lat 43°23'15", long. 72°21'45", on right bank O.S mile downstream from Redwater Brook at West Claremont, Sullivan County.

Drainage area.--269 sq mi.

Records available.--October 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 358.78 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--23 years, 384 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 7,530 cfs Apr. 3 (gage height, 7.52 ft), from 

rating curve extended above 6,700 cfs on basis of computations of flow over dam at gage 

heights 10.49 and 10.92 ft; minimum daily, 51 cfs Oct. 8.

1928-51: Maximum discharge, 14,000 cfs Mar. 19, 1936 (gage height, 1U.92 ft), from 

rating curve extended above 6,700 cfs as described above; maximum gage height, 11.80 ft 

Mar. 12, 1936 (ice jam); minimum daily discharge, 30 cfs Sept. 26, 1948.

Remarks.--Records excellent except those for periods of ice effect, which are fair. Flow 

regulated by mills above station and by Sunapee Lake (see p. 255).

Revisions (water years).--W 711: 1930(M). W 756: Drainage area.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

146

336

601

Adjusted for change in reservoir content

Mean 

Gf sm 

In.

48.0 

0.178 

0.21

54 C 

2.0^ 

2.21

Calendar year 1950: 

Water year 1950-51;

535 

t 1.99 

2.29

282

1.05 

1.21

558 

2 .07 

2.16

691 

2.57 

2.96

2 , 180 

8.10 

9.04

390 

1.45 

1.67

Observe!

Max 5,400 Min 43 Mean 355 

Max 5,400 Min 51 Mean 486

174 

0.647 

0 . 72

149 

0 . 554 

0.64

186 

0.691 

O.SO

148 

0.550 

0.61

Adjusted

Mean 371 Cfsm 1.38 In. 18.75 

Mean 487 Cfsrr 1.81 In. 24.59

_ _ak dl_ _ 

cfs (6.36 ft);

-^-_l_. ..... -- v _ r.-.) 7,380 cfs (7.44 ft); Mar. 31 (6 p.m.) 5,320

7,530 cfs (7.52 ft); Apr. 11 (10 a.m.) 4,620 cfs (5.98 ft).

Feb. 24-26, Mar. 1-3,
CONNECTICUT RIVER BASIN 193

Black River at North Springfield, Vt.

Location.--Lat 43°20'00", long. 72°30'55", on right bank at North Springfield, Windsor 

County, 1,300 ft upstream from Great Brook.

Drainage area.--158 sq mi.

Records available.--November 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 445.79 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average_discharge. --22 years, 274 cfs.

Extremes.--Maximum discharge during year, 4,860 cfs Mar. 31 (gage height, 9.92 ft); minimum, 16 cfs part of each day Oct. 1-6; minimum daily, 16 cfs Oct. 1.

1S29-51: Maximum discharge-, 15,500 efs Sept. 22, 1938 (gage height, 17.68 ft), 

from rating curve extended above 3,200 efs on basis of computations of flow over dams 

at gage heights 16.41 and 17.68 ft; minimum daily, 10 cfs Oct. 17, 1937.

Remarks.--Records excellent except those for periods of ice effect, which are fair. Flow 

regulated by mills above station.

Revisions (water years).--W 756; Drainage area. W781: 1931(M), 1934(M).

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 No

193

510

Note. --Same as following 

table above 4.0 ft.

Nov. 27 to Sept. 30 

40

195

510

5.0 970

7.0 2,240

9.0 3,940

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

Day

1

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

16

22

37

34

28

30

27

31

29

58

*126

110

94

77

69

60

49

70

82

156

110

94

92

70

60

58

59

32

27

36

38

1,881

60.7

0.384

0.44

Nov.

33

44

30

40

141

123

77

65

56

54

45

47

42

44

*40

33

41

38

36

43

233

165

104

141

126

2,020

1,060

614

517

397

-

6,449

215

1.36

1.52

Dec.

306

258

265

471

1,550

792

503

728

1,120

662

534

482

404

*35u

293

280

260

230

180

155

165

 175

145

140

120

115

120

130

120

135

140

11,328

365

2.31

2 .67

Jan.

130

125

140

220

400

250

190

160

155

*150

155

160

140

125

140

180

150

145

140

170

310

290

210

350

410

270

220

175

170

150

130

6,110

197

1.25

1.44

Feb.

150

300

310

240

210

190

320

900

400

350

310

280

280

450

*340

290

250

250

260

250

240

240

230

200

210

200

250

340

_

_

-

8,240

294

1.8F

1.94

Mar.

240

230

210

200

200

190

200

280

230

210

200

210

240

*263

281

293

257

269

271

288

271

257

225

290

417

319

279

340

463

1,260

5,790

12,673

409

2.59

2.98

Apr.

2,180

1,880

1,740

1,260

1,030

1,060

1,500

1,670

1,690

2,200

5,750

2,530

2,910

2,040

1,520

1,260

1,040

*85C

800

780

702

650

1,210

938

850

1,340

1,030

790

693

644

-

42,477

1,416

8.96

10.00

May

530

461

410

369

346

327

290

219

168

170

168

356

273

231

226

209

186

205

168

165

139

*149

122

133

140

120

128

420

558

245

196

7,607

245

1.55

1.79

June

158

128

127

121

116

101

94

85

77

65

75

63

56

84

208

204

156

144

117

*92

81

68

80

97

87

78

66

65

76

148

-

3,115

104

0.658

0.73

July

196

157

130

92

100

86

82

66

62

58

52

79

113

92

77

61

68

78

90

199

138

107

96

76

69

54

50

188

534

375

229

3,854

124

0.785

0.91

Aug.

163

129

112

111

79

83

67

*70

69

69

58

56

51

52

50.

66

219

176

118

98

92

265

153

119

103

124

94

*86

86

69

64

3,155

102

0.646

0.74

Sept.

70

94

178

155

129

134

321 r75-

129

100

88

89

94

66

89

88

74

64

60

57

57

55

51

108

80

93

82

75

74

72

-

3,001

100

0.633

0.71

Calendar year 1950: Max 

Water year 1950-51: Max

Min 

Min

Mean 263 

Mean 301

Cfsm 1.66 

Cfsm 1.91

In. 22.64 

In. 25.87

.charge (base, 5,600 cfs).--Nov. 26 (ll a.m.) 4,300 cfs (9.36 ft); Mar. 31 (7:30 

(9.92 ft); Apr. 11 (3 to 3:30 a.m.) 4,660 cfs (9.72 ft) .

Peak dl

4,860 cfs ,_.__ _.,, ..r _ .__,..__.. _ .... 

___.._rge measurement made on this day. 

Note.--Stage-discharge relation affected by 1 Dec. 16 to Mar. 13.
194 CONNECTICUT RIVER BASIN

Williams River at Brockway Mills, Vt.

Location.--Lat 43°12 I 30", long. 72°31'05", on left bank 25 ft upstream from highway 

bridge at Brockway Mills, Windham County, 4 miles downstream from Hall Brook, 4.6 

miles upstream from mouth, and 6 miles northwest of Bellows Falls.

Drainage area.--103 sq mi.

Records available.--June 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 430 ft (from topographic map).

Average discharge.--11 years, 156 cfs.

Extremes.--Maximum discharge during year, 4,860 cfs Mar. 31 (gage height, 9.34 ft), from 

rating curve extended above 3,300 cfs on basis of slope-area determination at gage 

height 13.31 ft; minimum, 15 cfs Oct. 6.

1340-51: Maximum discharge, 8,830 cfs Dec. 31, 1948 (gage height, 13.31 ft, from 

high-water mark in gage well), from rating curve extended above 3,300 cfs as described 

above; minimum not determined, occurred Dec. 11, 1941, during period of ice effect; 

minimum daily, 3.6 cfs Aug. 27, 1949.

Flood in September 1938 reached a stage of 22.7 ft, from floodmarks.

Remarks.--Records excellent except those for periods of ice effect and those for periods 

of doubtful or no gage-height record, which are fair.

Rating tables, water year 1950-51, except periods of ice 

height. In feet, and discharge, in cubic feet per

effect (gage 

econd)

1.0 12

1.1 16

1.3 28

1.6 58

2.0 121

26

3.0 385

4.0 750

5.0 1,240

6.0 1,860

27 to Sept. 30

1.2 

1.4 

1.7 

2.0 

3.0

119

381

t.O 750

>.0 1,240

i.O 1,860

).0 3,520

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

Day

I

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

Tota:

Mean

Cfsm

In.

Oct.

19

18

17

16

16

15IB"

16

16

64

*168 ~9~8~

112

80

58

47

43

40

38

36

33

32

32

40

43

46

39

36

37

43

41

1,355

43.7

0.424

0.49

Nov.

36

3555"

47

261

144

98

81

72

68

59

56

52

*50

46

46

53

52

46

51

281

152

100

90

91

1,590

*5Z4

363

342

267

-

5,188

173

1.68

1.87

Dec.

224

194

181

464

862

378

286

647

785

429

384

342

272

*228

194

196

181

160

125

90

110

115

120

110

95

68

56

54

5T

58

70

7,532

243

2.36

2.72

Jan.

68

67

70

140

200

120

86

74

86

*92

84

72

65

6072~

100

80

76

78

100

170

96

85

175

240

170

125

100

90

83

76

3,200

103

1.00

1.16

Feb.

85

20TT

220

180

155

130

250

680

a39O

a270

a230

a210

a205

*a370

250

180

155

145

160

155

150

155

150

135

130

135

205

215

_

_

-

5,895

211

2.05

2.13

Mar.

155

145

135

130

130

130

135

175

135

a!30

a!25

T5TJ

189

*189

234

231

198

218

206

251

249

233

186

293

372

257

224

312

414

1,190

3,320

10,441

337

3.27

3.77

Apr.

1,430

1,180

1,130

858

677

775

1,110

1,150

1,200

1,450

2,220

1,260

*1,780

1,060

804

645

535

439

459

419

354

3£H

601

413

382

682

416

339

308

270

-

24,668

822

7.98

8.91

May

234

211

191

179

162

153

143

133

121

115

152

272

191

150

131

115

106

111

96

87

82

*91

76 105"

114

76

108

327

2TT

145

113

4,504

145

1.41

1.63

June

89

76

72

102

91

72

62

55

50

46

44

42

123" 39

*534

205

129

128

150

89

70

58

84

118

116

d72

d58

d55

d90

d!75

-

2,894

96.5

0.937

1.04

July

d!90

dlTTT

d74

d60

d65

d72

d53

d42

d36

d32

30

72

108

55

38

32

*42

51

75

120

56

42

38

32

27

24

23 143"

186

94

58

2,078

67.0

0.650

0.75

Aug.

58

49

40

64

44

34

30

33

49

36

30

26

30

25

24

126

251

150

80

61

93

290 T5B"

84

71

87

66

78

*119

68

53

2,375

76.6

0.744

0.86

Sept.

58

94

197 TT9-

77

87

180

107

72

58

53

60

49

45

81

70

52

44

40

37

34

32

31

3?

40

62

41

46

38

34

-

1,970

65.7

0.638

0.71

Calendar year 1950: Max 2,280 Min 5.2 Mean 165 cfsm 1.60 In. 21.74

Water year 1950-51: Max 3,32O Min 15 Mean 198 Cfsm 1.92 In. 26.04

Peak discharge (base, 2,600 cfs).--

4,860 cfs (9.34 ft); Apr. 11 (2 a.m.

Nov. 26 (7:30 a.m.) 3,760 cfs (8.24 ft); Mar. 31 (5:30 a.m.) 

3,750 cfs (8.23 ft); Apr. 13 (7:30 a.m.) 2,710 cfs (7.10 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records,

recorded range in stage when available, and records for Saxtons River at Saxtons River.

d Doubtful gage-height record; discharge computed from reconstructed gage -height graph based on

recorded graph, weather records, lag indicated when intakes were flushed on July 11, and records for

Saxtons River at Saxtons River.

Note. --Stage-discharge relation affected by ice Dec. 18 to Mar. 9.
CONNECTICUT RIVER BASIN 

Saxtons River at Saxtons River, Vt.

Location.--Lat 43°08'15", long. 72°29'15", on right bank 130 ft upstream from highway 

bridge, 0.8 mile east of Saxtons River, Windham County, 1.4 miles upstream from Bundy 

Brook, and 3.9 miles upstream from mouth.

Drainage area.--72.2 sq mi.

Records available.--June 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 390 ft (from topographic map).

Average discharge.--11 years, 110 cfs.

Extremes.--Maximum discharge during year, 4,070 cfs Mar. 31 (gage height, 9.52 ft), from 

rating curve extended above 1,800 cfs on basis of slope-area determination at gage 

height 10.51 ft; minimum, 14 cfs Oct. 5-10; minimum daily, 14 cfs Oct. 6-9.

1940-51: Maximum discharge, 5,300 cfs Dec. 30, 1948 (gage height, 10.51 ft), from 

rating curve extended above 1,800 cfs as described above; minimum, 1.9 cfs July 25, 

1949; minimum daily, 3.0 cfs Aug. 28, 1949.

Flood in September 1938 reached a stage of 17.9 ft, from floodmarks.

Remarks.--Records excellent except those for periods of ice effect, which are fair. 

Occasional diurnal fluctuation at low flow by sawmill above station; more frequent 

prior to 1946.

Rating table, water year 1950-51, except periods 

height, in feet, and discharge, in cubic f

2.3

2.4 

2.6 

3.0 

3.5

4.0 

5.0 

6.0 

7.0 

8.1

of ice effect (gage 

feet per second)

292

640

1,120

1,750

2,640

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.

Oct.

18

17

16

15

15

14

14

14

14

67

*126

80

75

55

44

38

34

32

31

29

27

26

27

35

36

39

32

30

29

30

28

1,087

35.1

0.486

0.56

Nov.

27

26

25

35

226

118

80

68

62

57

51

47

44

*42

40

41

48

44

39

43

240

128

86

90

81

1.210

424

278

252

192

-

4,144

138

1.91

2.13

Dec.

157

135

132

300

674

295

212

646

653

356

322

280

*219

178

150

153

143

125

105

75

85

88

90

90

68

50

47

46

46

50

56

6,026

194

2.69

3.10

Jan.

55

54

56

130

160

105

76

70

67

*69

68

63

57

54

80

96

70

64

64

80

130

84

72

130

200

160

120

86

77

68

63

2,728

88.0

1.22

1.41

Feb.

25.

160

180

150

115

95

210

350

210

185

160

145

135

*225

180

150

125

110

120

115

110

120

115

105

98

100

155

160

_

_

-

4,158

148

2.05

2.14

Calendar year 1950: Max 1,500 Min 5.4

Mar.

125

110

100

100

95

97

100

115

98

92

90

115

130

*135

194

170

153

161

149

209

185

165

137

255

295

207

186

249

322

858

2.600

7,997

258

3.57

4.12

Apr.

1,050

825

*964

672

513

555

780

778

771

913

1.550

765

1,240

700

547

452

379

310

347

313

260

235

459

313

286

418

283

230

207

181

-

17,096

570

7.89

8.81

Mean 124

May

153

137

122

111

104

98

96

87

82

80

121

185

128

100

87

79

73

76

68

62

62

62

*53

102

96

64

107

229

111

89

73

3,097

99.9

1.38

1.60

Cfsn

June

59

52

53

122

86

64

53

46

40

36

32

30

2889"

266

158

103

84

77

*61

49

41

95

115

66

50

41

38

50

87

-

2,171

72.4

1.00

1.12

July

95

67

49

40

41

51

39

29

25

22

22

58

76

38

28

22

27

29

63

11

44

33

28

24

20

18

16

36

62

37

29

1,266

40.8

0.565

0.65

Aug.

28

27

22

46

28

21

18

*19

24

20

18

19

33

20

11

111

181

108

62

50

78

98

59

46

40

38

34

57

*50

35

29

1,436

46.3

0.641

0.74

Sept.

41

97

146

86

59

76

128

77

56

44

41

46

39

35

57

55

42

35

30

£8

26

25

23

23

32

46

30

36

29

25

-

1,513

50.4

0.698

0.78

1.72 In. 23.31

Water year 1950-51: Max 2,600 Min 14 Mean 144 Cfsm 1.99 In. 27.16

Peak discharge (base. 1.750 cfs).--Nov. 26 (7 a.m.) 2,590 cfs (8.04 ft); Mar. 31 (3:30 a.m.) 4,070 

cfs (9.52 ft); Apr. 11 (1 a.m.) 2,320 cfs (7.73 ft)} Apr. 13 (7 a.m.) 1,920 cfs (7.23 ft). 

* Discharge measurement made on this day. 

Note_.--Stage-discharge relation affected by ice Dec. 15, Dec. 18 to Mar. 13.
CONNECTICUT RIVKR BASIN

Connecticut River at North Walpole, N. H.

Location.--Lat 43°07'35", long. 72°26'15", on left bank at North Walpole, Cheshire County, 

100 ft upstream from Saxtons River and 0.7 mile downstream from Vilas Bridge between 

Bellows Falls, Vt., and North Walpole, N. H. Records include flow of Saxtons River.

Drainage area.--5.495 sq mi, includes that of Saxtons River.

Records available.--March 1942 to September 1951.

Gage. Water-stage recorder. Datum of gage is 218.63 ft above mean sea level, datum of

Average discharge. 9 years, 9,222 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 68,600 cfs Mar. 31 gage height, 24.43 ft); min- 

 imum daily, 185 cfs Oct. 8.

1942-51: Maximum discharge, 93,000 cfs Mar. 22, 1948 (gage height, 29.55 ft); minimum daily, that of Oct. 8, 1950.

Maximum stage known, 43.8 ft from floodmarks, Mar. 19, 1936.

Remarks. Records excellent except those for periods of ice effect, which are good. Flow 

regulated by powerplants and by First Connecticut and Second Connecticut Lakes, Lake 

Francis, Comerford Station Pond (see p. 255 ), and other reservoirs (combined usable 

capacity, about 14-j billion cu ft).

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

3.9

4.0 

4.5 

5.0 

5.5

151

199

930

1,510

6.0

7.0

10.0

15.0

23.0

2,270

4,230

11,680

28,500

62,200

Disciarge, 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

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

204

2,110

2,150

1,990

1,730

1,780

570

185

2,400

3,630

3,000

3,940

4,560

3,260

6,180

4,560

2,530

2,470

1,880

2,710

1,710

1,900

3,630

3,380

3,720

4,070

2,330

888

239

1,800

2,330

77,836

2,511

-526

Nov.

1,900

1,800

1,650

512

2,190

4,060

7,340

6,830

4,910

3,440

2,160

641

3,430

*2,930

3,930

3,910

3,370

1,300

2,210

4,090

5,990

10,400

7,250

4,640

2,220

29,000

59,400

31,600

29,200

25,100

-

247,403

8,247

+1,870

Dec.

19,100

15,200

12,200

10,000

34,300

33,800

26,800

22,800

24,600

20,400

16,500

16,500

13,800

12,700

12,000

9,820

7,970

9,330

9,690

8,900

7,080

6,390

3,780

4,120

2,460

5,900

6,000

4,400

5,000

2,000

1,600

385,140

12,420

-305

J:Ln .

2,800

5,800

6,800

6,800

8,200

8,240

6,570

4,800

5,600.

5,700

5,600

5,600

4,400

1.700

6,600

6,400

*6,50O

5,900

5,800

4,100

4,600

7,600

8,700

9,000

12,000

10,000

7,900

2,690

6,E10

6,400

5,900

194,910

6,287

-2,174

Feb.

5,100

6,800

5,100

4,800

6,400

5,900

7,100

24,000

19,500

11,000

4, 800

7,200

7,000

9,200

10,200

9,300

7,300

8,700

7,400

12,000

11,000

8,800

8,620

6,050

5,450

6,930

7,100

8,600

-

-

-

239,850

8,566

-921

Mar.

9,200

10,000

7,650

2.490

5,910

7,480

9,060

6,700

7,500

7,900

3,660

6,220

*8,090

12,300

13,100

13,700

12,200

12,700

10,500

12,900

12,400

10,700

10,200

9,180

9,380

11,300

12,200

11,200

13,700

30,400

60.800

370,720

11,960

-1,389

Apr.

58,500

52,800

54,200

56,500

50,500

43,000

41,900

44,200

41,700

44,000

56,800

58,000

57,700

53,400

47,300

42,700

36,400

30,500

24,600

23,900

20,100

16,800

21,200

26,000

24,400

32,000

38,400

35,600

31,800

27,900

~

H.,194.8

39,830

+4,446

May

25.8OO

21,700

18,600

16,500

15,500

12,600

9,090

10,800

10,200

10,200

11,500

12,800

11,300

7,810

12,000

11,800

8,880

8,080

11,700

11,000

7,760

10,500

*8,640

10,200

9,170

5,670

2,580

8,650

16,300

13,700

11,400

360,230

11,620

+1,558

June

10,000

11,600

4,410

6,200

6,570

7,370

7,240

7,050

3,350

2,080

5,790

5,700

3,340

3,730

6,790

2,410

802

5,440

4,660

4,500

4,000

3,900

639

905

5,130

5,180

4,080

3,400

3,580

3,780

-

143,626

4,788

-888

July

3,920

4,6OO

4,730

2,540

'2,730

4,920

7,930

3,290

4,010

3,610

3,930

4,870

5,540

5,260

3,090

3,640

4,980

6,930

*4, 720

6,950

9.580

4,840

3,560

6,340

4,520

3,190

2,470

2.370

6,000

5,910

3,840

144,610

4,665

+401

Aug.

4,210

4,090

5,660

4,140

3,140

4,570

5,660

3,920

3,410

3,660

2,640

1.080

2,850

2,640

2,600

2,520

5,220

6,620

1,730

2,830

3,970

6,150

7.810

5,790

3,720

2,390

3,540

3,440

*5,740

5,850

5,650

117,040

3,775

-390

Sept.

3,660

2,150

3,560

4,300

3,010

4,790

5,870

4,570

5,400

5,760

4,050

5,510

4,020

5,550

5,140

1,970

3,290

5,150

2,770

2,200

2,750

3,630

1.270

2,830

3,330

3,630

3,730

4,620

3,850

2,870

~

101,010

3,367

-1,215

Adjusted for change In rese

Mean 

Gf sm 

In.

2,314 

0.421 

0.49

8,966 

1.63 

I. Be

Calendar year 1950: 

Water year 1950-51:

12,310 

2.24 

2.58

5,476 

0.997 

1.15

8,185 

1.49 

1.55

11,440 

2.08 

2.40

41,540 

7.56 

8.44

Observed

Max 53,400 Mln 185 

Max 60,800 Mln 185

Peak discharge (base, 44,000 cfs).-

p.m.) 68,600 cfs (24.43 ft); Apr. 12 

* Discharsce measurement made on thl

Mean 8,600 

Mean 9,800

-Nov. 26 (10:30 

(4:30 to 6:30 a.

12,190 

2.22 

2.56

4,445 

0.809 

0.90

4,815 

0.877 

1.01

3,630 

0.661 

0.76

2,899 

0.528 

0.59

Adjusted

Mean 

Mean

8,618 

9,815

Cfsm 1 

Cfsm 1

57 In. 

79. In.

p.m.) 48,800 cfs (20.02 ft); Mar. 31 (6 

m. ) 61,000 cfs (22.74 ft).

21.30 

24.25

to 8

* Discharge measurement made on this day.

t Change in contents in First Connecticut and Second Connecticut Lakes, Lake Francis, Comerford 

;ation Pond, Union Village Reservoir, 4 reservoirs in Mascoma River basin, and Sunapee Lake, in

111nn« nf mih-1 f fp-pt-.

St

millions of cubic feet.

* Expressed in thousands.

Hote . --Stage-discharge relation affected by ice Dec. 26 to Jan. 

Feb. 27 to Mar. 2, Mar. 8-10.

4, Jan. 8-26, Jan. 50 to Feb. 22,
CONNECTICUT RIVER BASIN 197 

Cold River at Drewsville, N. H.

Location.--Lat 43°07'55", long. 72°23'25", on left bank 50 ft upstream from bridge on 

State Highway 101 at Drewsville, Cheshire County, 1.0 mile upstream from Great Brook, 

2.7 miles east of Bellows Falls, Vt., and 3.4 miles upstream from mouth.

Drainage area.--82.7 sq mi.

Records available.--June 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 375 ft (from topographic map).

Average discharge.--11 years, 110 cfs.

Extremes.--Maximum discharge during year, 8,160 cfs Nov. 26 (gage height, 10.29 ft), from 

rating curve extended above 3,400 cfs "by logarithmic plotting; minimum, 13 cfs Oct. 9, 

10.

1940-51: Maximum discharge, that of Nov. 26, 1950; minimum, 1.3 cfs Sept. 23, 1940.

Remarks.--Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair. Occasional diurnal fluctuation at low flow by sawmill above 

station; inore frequent prior to 1945.

Rating tables, water year 1950-51, except periods of ice effect (gage height, 

nd discharge, in cubic feet per second)

93

26 to Sept. 30

154

238

361

527

740

1,050

1,890

3,210

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

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

16

16

15

14

14

14

14

14

*14

*16

22

26

32

24

21

19

18

18

17

17

16

ie

16

18

18

9

8

7

7

7

7

550

17 .7

0.214

0.25

Nov.

15

16

16

19

116

86

50

38

33

30

27

25

24

23

*21

22

32

35

29

28

207

135

80

64

76

5, 120

726

423

367

275

-

6,158

205

2.48

2 .77

Dec.

217

177

156

175

554

316

227

229

302

230

200

180

156

134

115

122

112

105

*83

50

55

60

65

65

52

37

35

34

34

37

42

4,356

141

1.70

1.96

Jan.

40

40

41

95

120

95

80

68

63

*61

54

54

51

50

60

80

72

62

58

72

130

105

92

170

180

130

96

72

68

60

58

2,477

79.9

0.966

1.11

Feb.

68

160

170

140

110

92

280

512

292

225

190

162

*162

236

174

134

121

d252

d310

d246

135

179

157

128

122

122

157

172

_

-

-

5,268

188

2.27

2.37

Mar.

128

115

106

101

97

95

102

109

98

83_

85

97

*130

158

212

190

164

160

156

200

217

180

141

217

284

204

166

195

265

524

1,360

6,339

204

2.47

2.85

Apr.

870

695

*1,B20

*1,170

639

537

546

565

463

446

593

523

531

443

370

323

297

*255

255

242

207

188

303

282

258

385

297

244

217

195

-

14,159

472

5.71

6.37

May

177

157

135

128

118

106

101

94

86

81

92

158

139

110

94

81

71

67

58

53

52

51

*45

*116

138

89

87

234

154

117

91

3,280

106

1.28

1.48

June

71

56

53

116

98

68

50

41

36

31

28

26

24

35

*125

134

88

 3

49

41

34

29

50

106

62

45

34

31

35

84

-

1,743

58.1

0.703

0.78

July

93

67

44

34

32

32

28

24

20

17

*16

45

89

41

27

22

37

37

88

179

84

48

39

31

25

21

19

29

67

44

31

1,410

45.5

0.550

0.63

Aug.

34

32

26

48

33

25

22

20

20

19

17

16

29

19

17

50

168

186

103

95

161

208

124

88

71

59

*49

54

69

45

33

1, 940

62.6

0.757

0.87

Sept.

48

112

198

124

85

76

94

69

50

42

39

40

36

33

75

99

108

63

48

44

39

36

34

33

50

80

48

63

48

39

-

1,953

65.1

0.787

0.88

Calendar year 1950: Max 3,120 Min 5.2 Mean us Cfsm 1.39 In. 18.94

Water year 1350-51: Max 3,120 Min 14 Mean 136 Cfsm 1.64 In. 22.32

Peak discharge (base, 1.000 efa).--Nov. 26 (7 a.m.) 8,160 cfs (10.29 ft); Feb. 7 (8:30 to 9 p.m.) 

1,040 cfs (5.98 ft); Mar. 31 (6:30 to 7 a.m.) 1,620 cfs (6.72 ftjj Apr. 3 (3:30 p.m.) 3,360 cfs 

(8.20 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph biaed on 

recorded graph and engineer's outside gage reading.

Note.--Stage-discharge relation affected by ice Dec. 20 to Feb. 7.
198 CONNECTICUT RIVER BASIN 

West River at Jamaica, Vt.

Location.--Lat 43°06'30", long. 72°46'3Q", on left bank a quarter of a mile upstream from 

nignway bridge at Jamaica, Windham County, and 0.4 mile upstream from Ball Mountain 

Brook.

Drainage area.--179 sq mi.

Records available. October 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 640 ft (from topographic map).

Average discharge.--5 years, 340 cfs.

Extremes.--Maximum discharge during year, 11,700 cfs Nov. 26 (gage height, 11.38 ft); 

minimum, 22 cfs Oct. 5-7.

1946-51: Maximum discharge, 29,500 cfs Dec. 31, 1948 (gage height, 14.87 ft), from 

rating curve extended above 9,800 cfs by logarithmic plotting and verified by slopearea determination of peak flow; minimum, 5.0 cfs Aug. 28, 1949.

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

wnicn are fair. Diurnal fluctuation caused by mill above 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 Feb. 1 Feb. Z to Sept. 30

3.8 

4.1 

4.4 

4.7 

5.0 

5.5

76

128

218

440

6.0 

7.0 

8.0 

9.0 

10.0

730

1,590

2,860

4,610

7,110

3.9 

4.1 

4.3 

4.6 

5.0 

5.5

26

44

71

134

260

480

6.0 760

6.5 1,110

7.0 1,590

8.O 2,860

9.0 4,610

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.

Oct.

32

29

27

25

23

22

23

24

24

33

132

120

275

336

167

113

*104

76

70

65

61

57

57

76

86

97

80

70

72

89

86

2,551

82.3

0.46C

0.53

Nov.

71

66

64

84

413

286

165

128

111

100

90

86

79

76

72

*76

93

93

77

96

842

424

240

189

192

5.850

1,560

863

726

528

"

13,740

458

2.56

2.85

Dec.

412

339

321

1,150

2.700

946

593

797

1,240

731

6OO

562

*421

309

242

298

254

231

190

150

150

160

175

180

150

115

110

110

115

125

140

14,016

452

2.53

2.91

Jan.

135

135

140

250

500

310

230

185

155

160

165

*175

150

125

180

340

270

240

210

315

400

300

2OO

330

550

360

240

170

155

145

125

7,345

237

1.32

1.53

Feb.

200

670

500

390

295

235

315

900

480

355

315

270

300

560

420

325

280

270

260

253

242

253

221

200

200

208

253

344

-

-

~

9,514

340

1.90

1.98

Mar.

272

235

208

190

190

180

195

290

240

195

185

198

a220

a245

a270

a290

a245

a235

a240

a295

*296

268

225

350

624

420

315

371

620

1,630

4.010

13,747

443

2.47

2.86

Apr.

2,470

2,010

1,470

1,060

870

924

1,420

1,780

1,860

2,380

5,500

2,300

3,170

2,170

1,680

1,340

*1,060

825

938

1,100

946

838

2,230

1,430

1,100

2,160

1,260

904

832

748

~

46,775

1,559

8.71

9.72

May

568

470

403

344

296

264

246

224

204

214

284

748

514

349

276

242

214

231

193

167

*161

198

148

196

225

142

157

742

635

367

253

9,675

312

1.74

2.01

June

188

148

132

227

191

137

104

85

71

62

54

49

44

305

884

578

328

256

*285

161

112

87

102

231

193

139

89

75

81

303

~

5,701

190

1.06

1.18

July

448

256

150

102

129

246

148

87

64

50

41

141

306

124

75

52

107

145

226

407

180

102

89

68

50

40

33

357

656

272

142

5,293

171

0.955

1.10

Aug.

145

153

97

245

J.39

87

66

68

129

85

64

50

48

41

11

230

667

287

166

134

268

812

338

204

158

173

164

129

95

*76

62

5,417

175

0.978

1.13

Sept.

68

162

420

264

153

124

329

228

142

102

84

87

73

59

97

110

75

56

49

44

39

35

35

51

49

105

73

94

85

62

~

3,354

112

0.626

0.70

Calendar year 1950: Max 5,850 Mln 6.6 Mean 339 Cfsm 1.89 In. 25. 7O

Water year 1950-51: Max 5,850 Mln 22 Mean 376 Cfsm 2.10 In. 28.50

Peak discharge (base. 4.500 cfs).--Nov. 26 (7 a.m.) 11,70O cfs (11.38 ft); Dec. 5 (1:3O to 2 a.m.) 

4,790 cfs (9.09 ft); Mar. 31 (7:30 a.m.) 5,12O cfs (9.24 ft); Apr. 11 (5 to 6 a.m.) 4,610 cfs (9.OO

* Discharge measurement made on this day.

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

and records for station at Newfane.

Note.--Stage-discharge relation affected by Ice Nov. 23, Dec. 19 to Feb. 19, Feb. 24, 25, Mar. 

4-11, 23, 26, 27.
CONNECTICUT RIVER BASIN

West River at Newfane, Vt.

Location.--Lat 42°59 I 45", long. 72°38'20" , on right bank 600 ft downstream from highway 

bridge and 1 mile northeast of Newfane, Windham County.

Drainage area.--308 sq mi.

Records available.--September 1919 to September 1923, October 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 384.21 ft above mean sea level, datum of 

1929. Prior to June 27, 1931, chain gage at site 600 ft upstream at same datum.

Average discharge.--37 years, 603 cfs.

Extremes.--Maximum discharge during year, 20,800 cfs Nov. 26 (gage height, 13.27 ft); 

minimum, 47 cfs Oct. 7, 8.

1919-23, 1928-51: Maximum discharge, 52,300 cfs Sept. 21, 1938 (gage height, 22.81 

ft, from floodmarks), from rating curve extended above 20,000 cfs on basis of contractedopening determination at gage height 19.3 ft and slope-area determinations at gage 

heights 19.46 and 22.81 ft; minimum, 13 cfs Sept. 17, 18, 1948, Aug. 27, 28, 1949.

Flood of Nov. 3, 1927, reached a stage of 23.0 ft, from floodmarks, at chain-gage 

site (discharge, 45,000 cfs, from rating curve extended by logarithmic plotting "and on 

basis of computation of flow over dam at West Dummerston).

Remarks.--Records excellent except those for periods of ice effect, which are fair.

Revisions (water years) .--¥ 756: Drainage area. W 871: 1920-23 (yearly sui

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 Nov. 26 Nov. 27 to Sept. 30

4.1 42 5.5 800 4.2 82 5.5 820 

4.2 59 6.0 1,280 4.4 141 6.0 1,330 

4.4 105 7.0 2,550 4.6 218 7.0 2,550 

4.6 180 8.0 4,460 5.0 429 

5 -° 415 10 - 3 11,100 Note. --Same as preceding 

table above 7.0 ft. 

Discharge, In cubic feet per second, water year October 1950 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

Oct.

63

59

57

54

50

49

4T

49

49

73

238

265

369

560

3Tl

221

*200

154

133

124

117

108

105

124

154

171

158

130

127

145

149

4,635

150

0.487

0.56

Nov.

133

120

114

T3T

791

660

389

294

248

221

195

180

167

154

145

*140

176

200

171

162

1,280

893

475

402

356

11,000

3,180

1,730

1,480

1,100

-

26,687

890

2.89

3.22

Dec.

856

698

634

1,640

5,600

1,890

1,230

1,750

2,730

1,600

1,330

1,220

*892

690

555

570

526

449

380

310

305

320

357

362

310

240

230

230

235

255

290

28,684

925

3.00

3.46

Jan.

275

275

280

450

1,000

620

470

370

310

310

330

*345

305

260 335"

700

570

520

440

560

850

700

420

620

1,100

740

500

360

330

300

260

14,905

481

1.56

1.80

Feb.

290

1,400"

1,100

840

640

540

620

1,900

1,OOO

750

660

560

600

1,200

920

*700

600

580

560

540

530

550

520

440

430

440

540

740

_

_

-

20,190

721

2.34

2.44

Mar.

580

500

450

410

410

390 no"

640

580

410

400

420

460

520

570

620

530

503

518

*626

626

594

470

703

1,240

860

645

728

1,220

3,320

10,800

31,153

1,005

3.26

3.76

Apr.

5,370

4,160

3,320

2,330

1,850

1,850

2,810

3,600

3,540

4,630

7,460

4,420

6,700

4,260

3,160

2,570

*2,060

1,630

1,770

2,090

1,740

1,520

3,850

2,680

1,940

3,520

2,250

1,630

1,430

1,330

-

91,470

3,049

9.90

11.05

May

990

811

682

578

503

449

417

386

352

352

418

1,180

866

586

462

398

357

380

*335

293

278

318

263

350

505

313

274

1,160

1,200

TOT

476

16,633

537

1.74

2.01

June

357

283

250

408

374

278

218

185

163

148

129

119

110 2~9~3"

1,590

1,230

645

456

*449

308

227

185

251

489

324

278

193

166

163

393

-

10,662

355

1.15

1.29

July

650

423

273

198

185

346

263

181

141

116

102

154

486

240

155

122

116

210

282

715

315

202

166

145

116

99

88

175

899

550

227

8,183

264

0.857

0.99

Aug.

198

227

173

270

232

152

126

113

166

155

119

107

122

99

85

233

1,370 545"

318

222

340

976

526

318

250

227

236

218

173

*141

122

8,559

276

0.896

1.03

Sept.

129

276

865

HOT

313

245

511

405

268

206

173

170

155

135

155

210

166

132

116

104

99

90

85

m

110

155

148

141

159

126

-

6,438

215

0.698

0.78

Calendar year 1950: Max 11,000 Mln 17 Mean 643 Cfsm 2.09 In. 28.32

Water year 1950-51: Max 11,000 Mln 49 Mean 735 Cfsm 2.39 In. 32.39

Peak discharge (base, 8,800 efgl.--Nov. 26 (7:30 a.m.) 20,800 cfs (13.27 ft); Dec. 5 (3 a.m.) 

9,230 cfs 19.71 ft); Mar. 31 (7:30 a.m.) 13,600 cfs (11.08 ft); Apr. 11 (3:30 a.m.) 9,830 cfs 

(9.91 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 23, Dec. 19-22, Dec. 25 to Mar. 17, Mar. 

267TT.
200 CONNECTICUT RIVER BASIN

Connecticut River at Vernon, Vt.

Location.--Lat 42°46'10", long. 72°30i50", on right "bank just downstream from Vernon Dam 

at Vernon, Windham County, and 2 miles upstream from Ashuelot River.

Drainage area.--6,366 sq mi.

Records available. February to April 1936 (in Water-Supply Paper 798), September and 

October 1938 tin Water-Supply Paper 867), October 1944 to September 1951.

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

 Eo Jan. 20, 1948, at datum 94.1.3 ft higher.

Average discharge.--7 years (1944-51), 10,590 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 81,SOU cfs Mar. 31 (gage height, 203.55 ft); mintmum daily, 242 cfs Oct. 8.

1944-51: Maximum discharge, 101,000 cfs Mar. 23, 1948 (gage height, 208.53 ft); minimum daily, 99 cfs Oct. 8, 1944.

Maximum discharge loiown, 176,000 cfs Mar. 19, 20, 1936 (gage height, 128.8 ft, datum 

then in use), from rating curve extended above 69,000 cfs.

Remarks.--Records good except those below 1,000 cfs, which are fair. Flow regulated by 

powerplants and by First Connecticut and Second Connecticut Lakes, Lake Francis, Comerford Station Pond (see p. 255), and other reservoirs (combined usable capacity, about 

15 billion cu ft).

Revisions.--W 1031: Drainage area.

isc large, in cubic feet per second, water year October 195O to Septe

Day

1

0

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22'23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

258

2,010

2,430

2,020

2,020

2,800

536

242 2,4~DO"

4,610

4,550

4,150

5,110

4,480

5,240

4,630

4,030

2,560

*2,500

2,760

1,830

1,690

4,280

3,990

3,850

4,100

3,840

87O

312

1,640

3,380

89,118

2,875

-526

Nov.

2,070

2,250

2,380

1,080

3,2OO

5,830

7,740

8,300

5,220

3 ',760

2,690

428

4,150"

3,900

4,280

4,200

4,250

1,75O

1,470

5,090

8,250

*12,500

8,040

5,280

2,800

38,300

51,700

35 900

33^500

26,200

-

299,538

9,985

+1 , 870

Dec.

23,300

18,200

11,800

9,890

34,800

4O,400

29,900

28 , 400

28,100

23,600

18,200

18,900

17,200

15,600

14,100

10,400

7,840

8,060

* 10 ,400

9,720

7,660

5,790

5,820

5,310

2,800

6,800

6,000

4,500

5,600

2,300

2,300

433,690

13 , 990

-305

Jan.

3,700

6, BOO

6,920

7,610

10,400

10,OOO

8,740

6,000

5,700

6,200

6,400

7,400

4,700

2,600

7,100

8,300

6,930

*7,250

7,210

6,540

5,220

8,400

10,000

10,000

13,000

13,000

10,600

3,300

6,600

7,200

7,OOO

230,620

7,439

-2,174

Feb.

5,500

7,600

8,200

7,000

7,2OO

7,9OO

8,200

23,000

20,500

13,200

7,200

8,700

9,400

11,200

12 , 000

11,200

9,700

11,200

9,000

*1 1,700

12,000

11,800

9,400

S.6OO

3,800

6,900

8,470

9,880

_

-

280,450

10,020

-921

Mar.

11,700

10,500

9,030

4,440

6,250

7,990

8,850

8,020

8,550

8,620

4,440

6,820

9,190

12,600

13 , 000

13,900

13,000

13,OOO

12 , 900

13,000

* 13, 900

12,900

11,800

9,670

10,700

13,000

12,900

12 , 800

13,600

30,000

70,500

407,570

13,150

-1,389

Apr.

73 , 600

62 , 500

62,900

66 , 600

59,000

50,200

48,300

51,800

48,200

50,200

63,400

64,800

64,600

64,200

54,700

49,000

*44,300

37,500

30 , 400

27,000

24,700

21,600

2~I 900

29,000

28,100

31,600

41,900

40 , 200

36,200

31,600

-

*1,380

46,000

+4 , 446

May

26,40O

23 , 3OO

20,700

17,5OO

14,500

13,400

10,600

10,200

11,800

10,600

10,800

13,200

13,700

7,360

11,700

12 , 700

10,400

7,600

12,600

12,800

*7,190

9,630

9,640

11,500

11,90O

6,68O

3,170

9,160

18,700

14,900

13,000

387,330

12,490

+1,538

June

12,000

10 , 200

5,450

7,000

7,580

8,500

6,720

6,980

5,160

2,280

5,970

5,790

4,23O

6,440

9,710

4,660

1,040

7,130

5,420

5,330

*5,060

4,230

1,860

2,410

6,630

6,250

4,630

4,180

4,630

5,090

-

172,560

5,752

-888

July

4,930

6 , 100

7,920

2,190

3,970

6,610

6,260

3,190

5,330

4,660

4,470

6,940

6,820

6,350

2,070

5,100

6,090

6,810

6,870

10,500

10,300

3,160

5,060

5,830

4,700

4,320

3,320

2,070

6,560

9,030

5,420

172,950

5,579

+401

Aug.

4,970

4,720

5,460

4,420

2,130

5,120

4,170

5,100

4,670

5,920

1,720

993

3,330"

2,620

2,930

2,980

9,330

7,890

1,240

3,950

4,920

8,850

9,3801

6,830

3,320

3,160

4,230

4,970

5,160

4,800

*5,210

144,493

4,661

-390

Sept.

4,830

4,400

5,050

4,860

4,260

5,590

4,790

5,970

3,010

4,430

4,520

4,850

4,110

5,390

4,000

1,940

5,470

4,070

3,550

3,540

4,470

1,840

763

3,8~2TJ

4,840

3,640

5,060

6,090

3,120

2,360

-

124,633

4,154

-1,213

Adjusted Tor change in reservoir contents

Mean 

Cfsm

2,678 

0.427 

0.49

10,71C 

1.7]

1.9:

Calendar year 1950: 

Water year 1950-51:

13,880 

2.22 

2.55

6,628 

1.O6 

1.22

9,635 

1.54 

1.60

12,630 

2.02 

2.32

47,720 

7.62 

8.50

13,070 

2.09 

2.40

Observed

Max 64,000 Min 242 Mean 9,802 

Max 73,600 Min 242 Mean 11,30O

Peak discharge (base, 50,000 cfs).

5,409

0.863 

0.96

5,729

0.914 

1.05

4,515 

0.721 

0.83

3,686 

0.588 

0.66

Adjusted

Mean 9,82O Cfsm 1.57 In. 

Mean 11,310 Cfsm 1.80 in.

21.27 

24.49

 Nov. 26-27 (10:50 p.m. to 1 a.m.) 60,100 cfs (198.27 ft); Mar. 

03.55 ft)j Apr. 4 (1:30 to 3 a.m.) 69,000 cfs (20O.49 ft); Apr.

13-14 (10:30 p.m. to 3:5O a.m.) 67,000 cfs (200.01 ft).

* Discharge measurement made on this day.

t Change in contents in First Connecticut and Second Connecticut Lake's, Lake Francis, Comerford 

Station Pond, Union Village Reservoir, 4 reservoirs in Mascoma River basin, and Sunapee Lake, in 

millions of cubic feet.

* Expressed in thousands

Note.--Stage-discharge relation affected by ice Dec. 25 to Jan. 2, Jan. 8-16, Jan. 22 to Feb. 25.
CONNECTICUT RIVER BASIN 

Ashiielot River near Gilsum, N. H.

201

Location.--Lat 43°02'20", long. 72°16'15 M , on right bank 60 ft upstream from stone-arch 

bridge just off Keene-Newport road, 50 ft downstream from White Brook, and 0.7 mile 

downstream from Gilsum, Cheshire County.

Drainage area.--71.1 sq mi.

Records available.--August 1922 to September 1951.

Gage.--Water-stage recorder. Concrete control since Oct. 13, 1942. Datum of gage is 

773.80 ft above mean sea level (levels by Corps of Engineers).

Average discharge.--29 years, 124 cfs.

Extreme s.--Maximum discharge during year, 3,700 cfs Nov. 26 (gage height, 9.31 ft in gage 

well, 11.1 ft from outside gage), from rating curve extended above 1,900 cfs; minimum, 

8.8 cfs Oct. 5-8.

1922-51: Maximum discharge, 5,220 cfs Sept. 21, 1938 (gage height, 11.24 ft in 

gage well), from rating curve extended above 2,000 cfs on basis of float measurements 

and slope-area determination at gage height 11.24 ft; maximum gage height, 12.80 ft 

Mar. 19, 1936, in gage well and in river; minimum discharge, about 1 cfs Oct. 6, 1922, 

July 10, 1923.

Remarks.--Records good except those for periods of ice effect, doubtful gage-height

record, and backwater from debris, which are fair. Flow regulated by reservoir above 

station. Diurnal fluctuation by powerplant above station prior to 1938.

Revisions (water years).--W 661: Drainage area. 

1929, 1931, 1932 (yearly summaries only).

Rating tables, water year 1950-51, except periods of ice e 

doubtful gage-height record, and backwater from debris 

height, in feet, and discharge, in cubic feet per secon

:ffect, 

(gage 

id)

Oct. 1 to Nov. 25

1.62

1.8

2.0

2.5

3.0

3.5

159

256

2.0 

2.5

3.0 

3.5

147

247

to Sept. 30

4.0 

5.0 

6.0 

7.0 

9.0

376

685

1,120

1,690

3,360

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

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

10

10

10

9.7

9.2

8.8 S7S9.2

*12

14

18

28

35

2T

20

17

15

14

14

13

12

11

12

14

18

20

18

17

17

16

16

473.7

15.3

0.215

0.25

Nov.

14 TS16

20

176

233

134

80

55

45

38

33

*30

28

27

26

46

64

52

50

219

247

140

95

126

*d2,900

dl,900

986

556

395

-

8,746

292

4.11

4.57

Dec .

295

219

176

201

740

626

443

355

454

463

390

316

250

190

155

129

113

*100

90

75

62

63

64

65

60

50

45

4444"

48

56

6,381

206

2.90

3.34

Jan.

52

50

5T

88

135

120

110

100

93

80

72

67

65

60

75

105

94

80

75

82

135

130

120

155

220

180

120

90

84

80

75

3,043

98.2

1.38

1.59

 

Feb.

90

200

240

200

150

120

180

580

5T5(T

300

250

210

193

230

230

200

160

300

*311

254

195

193

168

132

128

122

139

165

-

_

-

6,140

219

3.08

3.21

Mar.

136

119

108

97

95

92

97

105

97

82

82

88

105

118

*160

160

147

134

140

225

282

230

174

213

290

228

177

185

272

498

1,260

6,196

200

2.81

3.24

Apr.

1,080

1,010

*1,510

1,430

892

646

568

626

590

532

590

713

696

657

532

431

373

319

280

272

225

193

55tT

301

282

371

350

293

257

225

-

16,494

550

7.74

8.63

May

187

150

121

105

93

85

81

75

70

66

76

128

135

109

91

80

71

65

60

55

54

52

49

9T

*136

35

85

168

193

233

2T35"

3,264

105

1.48

1.71

June

147

101

78

67

63

56

49

43

38

34

31

28

27

3T

54

78

65

54

55

48

40

34

78

165 TDD"

*62

48

42

44

61

-

1,822

60.7

0.854

0.95

July

68

64

50

42

48

59

44

35

29

26

24

40

73

54

37

30

32

35

49

98_

73

47

40

33

28

25

23

3T

52

46

37

1,372

44.3

0.623

0.72

Aug.

68

69

48

68

55

40

32

31

32

30

27

25

25

25

i±

36

97

108

81

64

108

141

TIT

83

72

65

54

61

60

50

42

1,835

59.2

0.833

0.96

Sept.

48

103

185

155

*101

80

84

73

56

48

43

42

37

35 14"0~

197 125-

95

79

65

55

49

48

46

56

93

76

91

83

64

-

2,452

81.7

1.15

1.28

Calendar year 1950; Max 2,900 Min 8.8 Mean 136 Cfsm 1.91 In. 26.01

Water year 1950-51: Max 2,900 Min 8.8 Mean 160 Cfsm 2.25 In. 30.45

Peak discharge (base, 1,000 efs).--Nov. 26 (7 a.m.) 3,700 cfs (9.31 ft); Mar. 31 (l p.m.) 1,500 cfs 

(6.68 ft); Apr. 3 (7 p.m.) 2,160 cfs (7.66 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed on basis of 1 discharge measurement, appearance 

of recorder chart, records for nearby stations and of pond elevations, and gate operations at Surry 

Mountain Dam.

Note.--Stage-discharge relation affected by ice Dec. 14, 15, Dec. 18 to Feb. 12, Feb. 15-18, Mar. 

6, 10, 11, 23, 27. Backwater from debris Nov. 28 to Feb. 8.

'0 O - 54 - 14
202 CONNECTICUT RIVER BASIN

Ashuelot River below Surry Mountain Dam, near Keene, N. H.

Location. Lat 42°59'45", long. 72°18'40", on right bank 600 ft downstream from Surry 

mountain Dam, Z\ miles upstream from Sturtevant Brook, and 4J- miles north of Keene, 

Cheshire County.

Drainage area. 101 sq mi.

Records available. September 1945 to September 1951.

Gage. Water-stage recorder and concrete control. Datum of gage is 480.00 ft above mean 

sea level, datum of 1929 (Corps of Engineers benchmark).

Average discharge.--6 years, 163 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 1,010 cfs Dec. 13 (gage height, 8.72 ft); minimum daily, 2.6 cfs Nov. 87.

1945-51: Maximum discharge, 1,090 cfs Mar. 31, Apr. 9, 1950 (gage height, 8.94 ft); 

minimum daily, 0.8 cfs Dec. 4-7, 1948.

Remarks.--Records excellent. Flow regulated by Surry Mountain Reservoir (see p. 255).

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

and discharge, in cubic feet per second)

3.9

4.0 

4.2 

4.5

1.8

2.8

5.8

13

4.8 

5.1 

5.5

6.0

42

82

152

6.5 

7.0

249

385

755

1,OOO

Disciarge, 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

(t)

Oct.

17

17

16

15

15

14

T4

15

15

22

30

38

*484"0

30

26

22

21

20

20

18

17

17

20

25

28

26

24

23

23

22

698

22.5

+0.1

Nov.

21

2O

21

26

205

259

169

119

91

74

61

53

48

45

42

42

*66

88

77

69

*256

251

155

169

144

7.3

2.6 312 

572

744

-

4,208.9

140

+609.7

Dec.

886

886

876

607

15

541

711

639

536

647

699

900

960

994 9"i3o"

932

737

*552

519

342

107

82

95

105

105

85

66

52

48

59

76

14,839

479

-580.4

Jan.

85

80

77

124

174

174

174

142

*119

118

118

114

99

86

105

162

171

146

136

128

155

187

187

223

501

301

216

164

141

123

76

4,606

149

+2.4

Feb.

91

191

309

309

245

195

138

137

330

251

203

386

426

502

560

289

161

296

418

556

526

373

296

219

187

196

206

219

_

_

-

8,217

293

+6.5

Mar.

219

200

166

155

150

149

149

149

149

114

107

122

231

312

*199

214

228

286

196

212

210

329

318

305

277

211

186

417

556

379

5.8

6,900.8

223

+231.6

Apr.

188

426

121

TS3

620

882

806

723

*767

608

519

795

844

816

882

928

I2S

896

834

816

802

795

683

783

767

711

798

791

791

795

-

21,308

710

-10.0

May

795

77H

731

759

622

165

129

119

111

103

120

180

182

154

133

118

104

98

90

82

78

76

70

*1^2

176

133

116

212

214

247

227

7,241

234

-258.6

June'

176

135

112

99

91

80

69

59

50

45

40

37

34

47

94

119

102

85

78

68

53

44

96

240

T53

*100

75

62

65

99

-

2,607

86.9

-0.9

July

103

96

74

58

61

88

67

49

40

34

32

57

112

82

53

41

41

45

80

164

118

77

60

*48

40

34

30

IT

94

75

62

2,056

66.3

0

Aug.

122

123

85

115

95

67

50

47

*47

46

41

36

46

41

37

59

180

183

TSS

115

167

181

159

122

107

99

86

116

162

89

88

3,049

98.4

-0.1

Sept.

92

176

306

249

*174

141

146

129

104

86

76

74

64

3746"

180

147

355

TT5

102

86

75

72

69

83

132

114

133

121

98

-

3,782

126

0

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

22.5 

0.223 

0.26

376 

3.72 

4.15

Calendar year 1950: 

Water year 1950-51:

262 

2.59

2.99

149

1.48 

, 1.71

296 

2.93 

3.05

309 

3.06 

3.53

706 

6.99

7.80

137 

1.36 

1.56

Observed

Max 1,090 Min 2.6 Mean 184 

Max 994 Min 2.6 Mean 218

86.6 

0.857 

0.96

66.3 

0.656 

0.76

98.3 

0.973 

1.12

126 

1.25 

1.39

Adjusted

Mean 184 Cfsm 1.82 In. 24.72 

Mean 218 Cfsm 2.16 In. 29.28

* Discharge measurement made on this day.

t Change in contents in Surry Mountain Reservoir, in millions of cubic
CONNECTICUT RIVER BASIN 203

Otter Brook near Keene, N. H.

Location.--Lat 42°57'55' i , long. 72°14'00", on left bank 10 ft downstream from bridge near 

State Highway 9, 3| miles northeast of Keene, Cheshire County, and 3i miles upstream 

from Minnewawa Brook.

Drainage area.--42.3 sq mi.

Records available.--October 19C3 to September 1951.

Gage --Water-stage recorder. Concrete control since Nov. 17, 1936. Datum of gage is 

^16.11 ft above mean sea level (levels by Corps of Engineers).

Average discharge.--28 years, 70.4 cfs.

Extremes.--Maximum discharge during year, 3,540 cfs Nov. 26 (gage height, 7.74 ft), from 

rating curve extended above 1,800 cfs on basis of contracted-opening determination of 

peak flow; minimum, 6.3 cfs Oct. 5-10.

1923-51: Maximum discharge, 6,130 cfs Sept. 21, 1938 (gage height, 7.93 ft), from 

rating curve extended above 1,300 cfs on basis of surface-float measurements and 

slope-area and contracted-opening determinations at gage heights 7,10 and 7.93 ft; 

minimum daily, 1.9 cfs Oct. 14, 1929.

Remarks.--Records excellent except those for periods of ice effect, which are fair.

Revisions (water years).--W 781: 1928(M). W 871: 1928, 1933, 1934 (yearly summaries 

only); drainage area.

Rating tables, water year 1950-51, except periods of ice effect (gage height, 

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

5.4 

9.7

Oct. 1 to Mar. 3O

3.1 48

3.4 97

3.7 165

4.0 270

Mar. 31 to Sept. 30

5.0 865

6.0 1,530

6.6 2,010

3.7 

4.0

165

269

Note . S 

taBTe~below 3.7 ft.

785 

1,060 

s preceding

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.

Oct.

7.9

7.5

7.1

6.7

6.5

6.3 5-73" s'.s

6.3

10

21

46

*48

3T

26

22

20

19

18

16

14

13

13

15

17

19

16

15

15

15

14

505.9

16.3

0.385

0.44

Nov.

14

13

14

21

94

68

56

49

44

39

36

32

29

28

27

26

*42

37

34

36

*168

130

94

75

100

*1,950 *595

326

266

210

-

4,653

155

3.66

4.09

Dec.

187

168

149

185

576

290

206

202

261

216

189

170

147

126

109

99

91

*82

70

61

55

62

64

61

52

47

42

39

38

4T

50

4,136

L33

3.14

3.64

Jan.

45

4142"

95

120

100

80

65

56

50

48

46

43

42

54

71

62

54

53

63

110

95

85

110

130

100

75

60

50

45

48

2,136

68.9

1.63

1.88

Feb.

80

130

140

120

90

75

17TT

350

20Tf

150

130

115

108

135

120

90

75

180

202

156

130

154

135

115

100

95

108

112

_

-

-

3,765

134

3.17

3.31

Mar.

93

85

76

73

71

71

71

78

70

60

61

62

68

82

*108

97

93

89

89

158

168

139

114

163

181

143

122

128

161

288

1,060

4,322

139

3.29

3.80

Apr.

608

448

*970 6~6"5~

370

292

283

287

261

231

235

216

224

213

184

165

160

142

137

130

117

106

159

154

142

170

151

128

112

101

-

7,561

252

5.96

6.65

May

89BO73

66

60

55

52

48

45

44

54

86

80

63

56

48

44

39

35

34

32

30

28 *HT

71

56

49

88

71

59

47

1,749

56.4

1.33

1.54

June

39

33

31

29

27

24

21

19

17

14

12

11

TT

18

42

50

37

30

25

20

17

14

36

93 *7E45

30

25

33

49

-

928

30.9

0.730

0.82

July

49

40

28

23

23

34

30

25

21

19

17

50

67

4T

31

24

24

22

29

42

29

24

23

19

17

15

14 25"

47

31

26

913

29.5

0.697

0.80

Aug.

32

34

27

30

24

20

17

16

16

15

14

13

12

11

10

53

121

98

68

52

56

71

55

45

36

29

26

25

29

24

20

1,099

35.5

0.839

0.97

Sept.

24

55

99

82

*57

42

44

37

30

36

22

23

20

19 105-

119 -B5-

57

45

35

29

26

26

25

40

57

46

59

47

41

-

1,422

47.4

1.12

1.25

Calendar year 1950: Max 1,950 Min 2.2 Mean 81.1 Cfsm 1.92 In. 26.03

Water year 1950-51: Max 1,950 Min 6.3 Mean 90.9 Cfsm 2.15 In. 29.19

Peak discharge (base, 600 cfs). N

cfs (4.95 ft); Mar. 3l (6:30 a.m.) 1

DV. 26 (7:30 a.m.) 3,540 cfs (7.74 ft); Dec. 5 (2:30 a.m.) 835 

380 cfs (6.06 ft); Apr. 3 (3 p.m.) 1,500 cfs (6.26 ft).
!04 CONNECTICUT RIVER BASIN

South Branch Ashuelot River at Webb, near Marlboro, N. H.

Location.--Lat 42°52'20", long. 72°12'55", on right bank 15 ft downstream from bridge, 

800 ft southwest of Webb station on Boston & Maine Railroad, and "\ miles south of 

Marlboro, Cheshire County.

Drainage area.--36.0 sq mi.

Records avaliable.--November 1920 to September 1951.

Gage.--Water-stage recorder. Concrete control since July 18, 1938. Datum of gage is 

567.11 ft above mean sea level, datum of 1929 (levels'by Corps of Engineers).

Extremes.--Maximum discharge during year, 2,010 cfs Nov. 26 (gage height, 6.36 ft); minimum, 2.4 cfs Oct. 7-10; minimum daily, 3.4 cfs Oct. 8, 9.

1920-51: Maximum discharge, 5,960 cfs Sept. 21, 1938 (gage height, 7.39 ft), from 

rating curve extended above 3,300 cfs on basis of contracted-opening and slope-area 

determinations of peak flow; maximum gage height, 9.70 ft Mar. 12, 1936 (ice jam); 

practically no flow Mar. 22, 1931; minimum daily, 0.4 cfs Sept. 15-17, 1926.

Remarks.--Records good except those for periods of ice effect, which are fair. Flow 

regulated by powerplant and several small reservoirs above station.

Revisions (water years).--W 641: 1925(M). W 871: Drainage area.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

1.75 

1.8 

2.0 

2.5

3.4 

4.2

8.6

3.0 

3.5 

3.8

4.1

4.5 

5.0 

5.5 

6.0

300

555

920

1,470

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

Tota:

Mean

Cf sm

In.

Oct.

4.2

4.1

3.9

3.9

3.7

3.5

3.5

3.4

3^T

3.7

5.4

27

*4855"

15

12

11

9.4

8.6

8.4

7.7

8.9

6.8

7.7

8.1

8.1

7.4

7.0

6.1

6.8

7.9

289.6

9.34

0.259

0.30

Nov.

6.8

6.3 S"3"

12

114

76

42

26

24

18

15

13

15

11

11

13

*16

18

12

18

139

100

43

37

42

 

1,150 355"

194

174

122

-

2,868.4

95.6

2.66

2.96

Dec.

91

68

65

125

567

274

158

150

282

202

161

144

120

92

*86

66

64

56

51

47

42

39

36

34

36

33

31

3033-

39

46

3,268

105

2.92

3.38

Jan.

42

40

37

62

100

78

58

51

48

45

43

40

37

Se- 34

es

50

45

43

55

92

80

65

90

120

75

56

46

41

39

38

1,765

56.9

1.58

1.82

Feb.

65

110

96

80

65

60 150~

270

160

110

94

85

96

110

100

78

66

300

314 T5B"

147

226

198

130

100

94

105

115

_

_

-

3,732

133

3.69

3.86

Mar.

90

80

68

62

64

67

69

81

64

58

5255"

65

109

182

*122

100

90

88

292

256

160

115

197

255

161

119

114

145

254

874

4,508

145

4.03

4.66

Apr.

415

273

701

52TT

282

208

180

171

155

141

155

144

152

144

122

114

127

105

105

98

91

62 iSs"

146

114

130

102

83

65

66

-

5,335

178

4.94

5.51

May

55

52

46

44

41

39

43

38

37

34

48

112

TF

59

48

42

36

31

33

23_

30

27

23

79

*94

52

39

105

77

46

36

1,557

50.2

1.39

1.61

June

36

23

21

28

26

23

17

16

16

9.9

9.1 376-

9.4

29

88

99SB44

30

21

16

15

19

34

*35

26

19

20

15

36

-

848.0

28.3

0.786

0.88

July

57

46

28

15

26

43

30

17

13

15

39

83

190 -73-

37

26

18

19

40

90

50

26

26

20

14

12

1033"

48

34

22

1,200

38.7

1.08

1.24

Aug.

49

50

34

36

21

20

13

13

*17

13

12

10

12

9.6

9.1

27

136 ~5S~

51

34

29

48

35

27

24

15

16

13

13

11

*11

894.7

28.9

0.803

0.92

Sept.

17

30

79

54

32

22

20

20

16

20

20

20

17

11

5F

91SB25

20

16

14

13

12

11

18

41

27

21

23

13

-

830

27.7

0.769

0.86

Calendar year 1950: Max 1,150 Min 3.0 Mean 59.5 Cfsm 1.65 In. 22.43

Water year 1950-51: Max 1,150 Min 3.4 Mean 74.2 Cfsm 2.06 In. 28.00

Peak discharge (base, 550 cfs). Nov. 26 (8:30 to 9 a.m.) 2,010 cfs (6.36 ft); Dec. 5 (5 a.m.) 715 

fs (5.25 ft); Mar. 31 (9 a.m.) 1,290 cfs (5.86 ft); Apr. 3 (4:30 to 5:30 p.m.) 1,180 cfs (5.76 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 18 to Feb. 12, Feb. 14-18, Feb. 24 to Mar. 3, 

ar. 10, 11, 23.
CONNECTICUT RIVER BASIN 205

Ashuelot River at Hinsdale, N. H.

Location.--Lat 42°47'05", long. 72°29'10", on left bank 40 ft upstream from highway bridge 

at Hinsdale, Cheshire County, a quarter of a mile downstream from dam, and l£ miles 

upstream from mouth.

Drainage area.--420 sq mi.

Records available.--March 1907 to December 1911, July 1914 to September 1951.

liage. --water-stage recorder. Datum of gage is 201.32 ft above mean sea level (levels by

 Corps of Engineers). Prior to Sept. 29, 1933, chain gage on highway bridge at same

datum.

Average discharge.--41 years, 648 cfs. 

Extremes. Maximum discharge during year, 5,470 cfs Nov. 27 (gage height, 7.77 ft); mini-

 mum, 63 cfs Oct. 8; minimum daily, 76 cfs Oct. 8.

1907-11, 1914-51: Maximum discharge, 18,000 cfs Mar. 29, 1920 (gage height, 9.98 

ft), from rating curve extended above 8,000 cfs; maximum gage height, 20.2 ft Mar. 19, 

1936, from floodmarks (backwater from Connecticut River); minimum discharge observed, 

11 cfs Aug. 12, 1923; minimum daily, 12 cfs Sept. 15, 1929.

Remarks.--Records good except those for periods of ice effect, which are fair. Flow regu-

 lated by mills above station. High flow affected by Surry Mountain Reservoir since

1942 (see p.255) . 

Revisions (water years).--W 661: Drainage area. ¥756: 1920(M). ¥781: 1907-11

calendar years, iaii-34.

Rating tables, water year 1950-51, except periods of ic 

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

effect (gage

3.0 

3.2 

3.5

4.0 

4.5

Oct. 1 to No

103

177

352

605

27

5.0 980

6.0 2,110

7.0 3,820

B.O 6,020

md)

Nov. 28 to Sept. 30

3.4

3.5

4.0 

4.5

150

177

365

655

5.0 1,030

6.0 2,110

7.0 3,820

8.0 6,020

Disc large, in cubic feet per second, water year OctDber 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

It

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

96

95

82

99

80

87

85

76

15

89

148

172

267 

283

2155

176

*153

145

138

132

128

109

114

107

121

132

130

135

116

121

114

4,017

130

+0.1

Nov.

121

116 T6~6~

158

293

667

675

468

374

316

270

233

219 

181

164

164

198

250

246

229

595

*1,040

779

547

519

2,980

5,150

3 , 420

2,000

1,850

-

24,388

813

+609.7

Dec.

1,700

1,650

1,560

1,570

2,430

2,530

2,040

1,870

1,940

2,030

1,920

1,790

1,780 

1,690

1,630

1,590

1,480

1,300

*1,130

998

769

566

530

476

460

450

400

360 360"

390

430

39,819

1,284

-580.4

Jan.

460

440

410 5~30"

970

1,010

790

636

600

580

*570

550

480 

410

470

700

760

720

620

580

630

790

850

900

1,200

1,200

980

700

600

550

490

21,176

683

+2.4

Feb.

470

76~<3

1,150

1,150

1,000

910

960

1,750

1,900

1,750

1,400

1,140

1,210 

1,320

1,400

*1,370

1,050

1,320

2,010

2,140

1,900

1,890

1,970

1,580

1,270

1,130

1,220

1,300

_

_

-

38,420

1,372

+6.5

Mar.

1,180

1,050

958

854

790

830

846

870

838

707

616

S*2

776 

958

1,310

1,320

1,200

1,080

1 , 090

1,340

1,920

*1,770

1,460

1 , 500

1,900

1,760

1,390

1,240

1,460

1,890

3,640

39,185

1,264

+231.6

Apr.

4,540

3,320

3,740

5,260

4,400

2,980

2,640

2,400

2,210

2,120

2,030

1,900

2,040 

2,140

2,000

1,900

1,900

1,890

1,780

1,690

1,610

1,510

1,560

*1,760

1,730

1,740

1,700

1,630

1,530

1,430

-

69,080

2,303

-10.0

May

1,400

1,3BU

1,300

1,260

1,230

1,020

636

596

566

488

536

776

886 

776

707

596

524

*454

400

365

356

370

361

455

762

707

530

662

798

688

629

22,194

716

-258.6

June

572

494

410

352

329

295

279

247

226

192

192

180

*1S5 

216

465

734 £-55

518

494

395

316

264

249

449

629

490

365

312

291

383

-

11,182

373

-0.9

July

462

459

390

303

253

304

356

287

245

226

302

438

 1,020 an

537

359

312

283

312

524

554

400

329

291

252

224

 zn 192

340

385

316

11,720

378

0

 

Aug.

329

459

410

338

320

275

245

221

224

227

201

181

173

166

155

171

642

854 6~6~7

454

394

515

503

414

357

326

295

300

304

338

245

10,703

345

-0'. 1

Sept.

268

333

711

854

*6T2

464

405

375

316

275

252

238

238 

231

524

849

795

545

597

385

334

287

222

2S5

260

394

437

395

390

334

-

12,602

420

0

Adjusted for change in reservoir contents

Mean 

In.

130 

0.310 

0.36

1,046 

2.5C 

2.76

Calendar year 1950: 

Water year 1950-51:

1,068 

2.54 

2 .93

684 

1.63 

1.88

1,375 

3.27 

3.41

1,351 

3.22 

3.71

2,299

5.47 

6.11

619 

1.47 

1.70

Observed

Max 5,150 Min 45 Mean 662 

Max 5,260 Min 76 Mean 834

372

0.886 

0.99

378

0.900 

1.04

345

0.821 

0.95

420 

1.00 

1.12

Adjusted

Mean 662 Cfsm 1.58 In. 21.38 

Mean 334 Cfsir 1.99 In. 26.98

Peak discharge 4.73T3 - '- ' bas

(.7-44 ftj; Ap:

* Discharge measuremi 

t Change in contents 

Note.--Stage-dischar)

3,000 cfs) . No\ 

'. 4 (4:30 p.m.'

27 (3 p.m.) 5,470 

5,420 cfs (7.75 ft).

:fa (7.77 ft); Apr.-1

ade on this day. 

Surry Mountain Reservoir, in millic 

elation affected by iee Dec. 25 to

s of ci 

an. 5, 9 to Feb. 11.
206 CONNECTICUT RIVER BASIN

Tarbell Brook near Winchendon, Mass. 

(Formerly published as Sip Pond Brook near Winchendon)

Location (revised). Lat 42°42'45", long. 72°05'09", on left bank 0.1 mile downstream 

rrom apua isrooic, 0.3 mile downstream from Massachusetts-New Hampshire State line, 

and 2f miles northwest of Winchendon, Worcester County.

Drainage area. 18.2 sq mi.

Records available. May 1916 to September 1951. Prior to October 1950, published as Sip 

fona BrooK near Winchendon.

Gage. Water-stage recorder. Datum of gage is 872.82 ft above mean sea level, datum of 

 T929. May 1929 to June 29, 1916, staff gage, June 30 to Dec. 12, 1916, water-stage

recorder, and Dec. 13, 1916, to June 17, 1917, staff gage at site 450 ft downstream

at same datum,

Average discharge. 35 years, 29.7 cfs.

Extremes. Maximum discharge during year, 346 cfs Nov. 27 (gage height, 9.35 ft); minimum, 1.4 cfs Oct. 7.

1916-51: Maximum discharge, 2,630 cfs Sept. 21, 1938 (gage height, 13.72 ft), from 

rating curve extended above 1,200 cfs on basis of critical-depth study at control 

section; minimum, 0.1 cfs Aug. 25, 1924.

Remarks. Records good. Flow regulated by Pearly and Sip Ponds, Damon Reservoirs, and 

small mill above station.

Revisions (water years).--W 781: 1934. W 871: Drainage area. W 1051: 1928(M), 1933,

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

0.6 

2.8 

7.4

6.0 

6.5 

7.0 

7.5

9.0 

9.5

164

291

373

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 sm

Oct.

3 .9

4.2

2.0

3.4

2.3

3.3

1.5

1 . 7

2.9

3.5

*2.8

5.0

4.7

4.1

3.7

6.0

4.0

4.3

5.1

4.9

3.1

3.0

4.2

4.4

4.9

4.0

7.9

374

3.0

5.2

5.0

119.4

3.85

0.212

0.24

Nov.

2.7

171

3.0

3.5

7.3

8.6

6.4

6.6

8.5

8.0

5.6

5.1

7.1

6.5

5.4

5.7

6.5

4.7

4.4

5.7

15

21

30

30

21

190

2T2" 324

143

108

-

1,209.4

40.3

2.21

2.47

Dec.

91

73

57

64

109

141

115

96

92

86

86

74

63

*45

46

38

36

37

29

26

24

24

18

23

23

21

17

16

18

12

TZ

1,612

52.0

2.86

3.29

Jan.

19

20

18

2?

30

32

32

32

29

25

23

22

18

18

30

*31

34

31

30

27

34

40

33

45

56

47

45

39

38

32

28

960

31.0

1.70

1.96

Feb.

29

45

45

43

41

35

45

103

120

TOT3

76

*57

55

55

51

46

40

79

98

98

88

107

120

103

87

72

67

66

_

_

-

1,971

70.4

3.87

4.03

Mar.

60

55

46

45

46

43

41

*45

44

37

33

3T

36

46

71

72

67

63

60

85

132

122

95

93

112

102

82

69

72

84

186

2,181

70.4

3.87

4.46

Apr.

252

184

193

278

2"075

146

114

98

86

81

»80

81

77

70

64

58

55

53

48

44

38

36

52

59

58

56

53

44

40

39

-

2,737

91.2

5.01

5.59

May

31

29

27

22

18

15

22

19

18

16

18

20

38

25

24

*21

19

17

10 9.7

18

15

15

21

22

29

25

30

28

24

25

673.7

21.7

1.19

1.38

June

19

11

10

17

14

11

11

7.2

6.1

5.6

12

7. S

6.7

6.0

19

*23

32

25

18

21

17

16

8.7

8.5

15

14

12

8.6

9.3

6.2

-

398.7

13.3

0.731

0.81

July

9.1

16

14

1T~7.4

14

8.4

8.4

13

12

*12

12

25

34

19

17

15

14

21

31

36

26

22

17

15

13

12

38

604"6~

33

633.3

20.4

1.12

1.29

Aug.

25

30

25

20

19

20

15

16

16

17

8.9

37T

14

13

14

13

25

45

46

32

28

28

26

22

14

15

17

*14

15

14

11

627.0

20.2

1.11

1.28

Sept.

7.8

11

28

29

21

14

15

8.9

8.5

14

13

9.6

7.9

6.6

5.8

7.1

14

12

13

9.9

7.4

5.4

5.0

11

8.4

12

8.4

9.2

4.7

4.4

-

335.0

11.2

0.615

0.68

Calendar year 1950: Max 324 Mln 1.2 Mean 29.2 Cfsm 1.60 In. 21.74

Water year 1950-51: Max 324 Mln 1.5 Mean 36.9 Cfsm 2.03 In. 27.48

Peak discharge (base, 150 cfs).--Nov. 27 (6 to 7 a.m.) 346 cfs (9.35 ft); Apr. 1 (3 to 4 a.m.) 273 

cfs (8.88 ft); Apr. 4 16 to 11 a.m.) 290 cfs (8.99 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 21, 25-28, Jan. 1, 2, 9-11, 13, 14, 31, 

PeFTT.
CONNECTICUT RIVER BASIN 

Millers River near Winchendon, Mass.

207

Location. Lat 42°41'03", long. 72°05'02", on right bank 10 ft downstream from Nolan 

bridge, a third of a mile downstream from Tarbell Brook (formerly called Sip Pond 

Brook), and 2 miles west of Winohendon, Worcester County.

Drainage area. 83.0 sq mi.

Records available. June 1916 to September 1951.

Gage. Water-stage recorder. Concrete control since Oct. 6, 1933. Datum of gage is 

526.66 ft above mean sea level, datum of 1929. Prior to July 27, 1916, chain gage 

at bridge at same datum.

Average discharge. 34 years (1917-51), 139 cfs .

Extremes. Maximum discharge during year, 1,150 cfs Nov. 26 (gage height, 8.08 ft); minimum daily, 10 cfs Oct. 8, 22.

1916-51: Maximum discharge, 8,500 cfs Sept. 22, 1938 (gage height, 21.55 ft, 

from floodmarks), by computation of peak flow over dam; practically no flow because 

of regulation Sept. 20, 1918, Jan. 14, 1925.

Remarks. Records excellent except those for periods of backwater from moss, which are 

good, and those for periods of ice effect or no gage-height record, which are fair. 

Flow regulated by powerplant and by Lake Monomonac and other reservoirs.

Revisions (water years). W 451: 1916. W 871: Drainage area. W 1051: 1919, 1920(M), 

i»ai(M), iyyy-X4, iy28(M), 1933, 1934.

Rating tables, water year 1950-51, except periods of Ice effect (gage 

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

3.6

3.7 

3.9 

4.2 

4.5

Oct. I to Nov. 26

6.7 5.0

12 6.0

28 7.0

Nov. 26 to Sept. 3O

298

518

780

1,120

3.7

3.8 

4.0 

4.2 

4.5

39

70

137

5.0

6.0 

7.0

281

492

750

1,120

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

Total

Mean

Cfsm

In.

Oct.

63

68

34

52

39

16

12

10

15

15

*43

16

46

14

12

40

46

38

37

14

11

10

29

38

15

12

36

13

11

36

14

902

29.1

0.351

0.4O

Nov.

11

1?

27

13

29

77

62

*54

47

19

17

16

45

18

16

16

34

18

15

39

90

103

97

79

63

S7z~ 902

770

546

414

-

4,521

151

1.82

2.03

Dec.

360

301

273

270

556

418

383

339

355

344

362

339

287

200

224

212

206

*197

173

168

165

120

43

43

4_1

90

67

92

97

100

58

6,883

222

2.67

3.08

Jan.

104

94

80

136

172

160

100

120

*140

115

104

126

46

140" 44

155

150

106

142

137

159

170

160

186

292

269

242

212

198

185

200

4,644

150

1.81

2.08

Feb.

210

280

280

258

232

214

333

692

6TC

539

407

256

226

275

281

238

208

455

472

440

379

525

509

431

351

280

286

290

_

_

-

9,951

355

4.28

4.46

Mar.

263

243

222

218

225

224

220

*234

227

206

191

191

183 2~2o~

407

375

251

221

213

308

444

426

374

419

448

374

3L2

264

271

345

682

9,201

297

3.58

4.12

Apr.

775

628

743

953

S03

56O

457

408

320

348

370

356

329

322

306

285

264

236

241

229

214

203

253

282

276

273

254

190

123

90

-

11,091

370

4.46

4.97

May

95

130

85

120

70

56

94

110

54

68

110

160

155

145

*98

114

81

101

30

28

62

71

68

118

165

136

98

191

199

209

175

3,396

110

1.33

1.52

June

158

144

145

127

59

36

61

58

24

21

37

44

21

25

106

*176

181

1ST

84

118

58

72

30

28

56

81

85

50

59

29

-

2,324

77.5

0.934

1.04

July

29

72

68

28

55

69

30

27

46

52

52

*74

153

194

144

80

64

60

78

171

204

118

82

73

76

64

63

336

348

m

203

3,407

110

1.33

1.53

Aug.

162

181

174

131

76

132

74

99

129

1O4

112

40

33

92

82

82

157

209

T75

148

113

158

138

127

49

42

87

*90

122

120

49

3,556

115

1.39

1.59

Sept.

31

34

138

Tie- 148

139

145

112

112

79

123

103

66

106

29

26

30

56

38

31

25

19

16

TO

58

52

44

50

21

16

-

3,013

67.1

0.808

0.90

Calendar year 195O: Max 902 Min 8.O Mean 127 Cfsm 1.53 In. 20.81

Water year 195O-51: Max 953 Min 10 Mean 170 Cfsm 2.05 In. 27.72

Peak discharge (base, 690 cfs). --Nov. 26 (ll:3O a.m.) 1,150 cfs (8.08 ft); Feb. 8 (1:30 to 2 a.m.)

992 cfs (7.68 ft); Apr. 4 ( 7 to 9 a.m.) 988 cfs (7.67 ft).

* Discharge measurement made on this day.

Note. Ho gage-height record Jan. 6-9, Apr. 30 to May 14; discharge estimated on basis of weather
CONNECTICUT RIVER BA3IN

Priest Brook near Winchendon, Mass.

Location.- -La t 42°40'57", long. 72°06'56", on right bank 100 ft downstream from highway 

Driage , 3 miles upstream from mouth, and 3^ miles west of Winchendon, Worcester 

County.

Drainage area. --19. 4 3q mi.

Records available. --May 1916 to September 1951.

Gage. Water-stage recorder. Concrete control since September 1936. Datum of gage is 

ff49.67 ft above mean sea level, datum of 1929. Prior to Mar. 22, 1933, staff gage and 

Mar. 22, 1933, to Sept. 11, 1936, float gage on left bank at same datum.

Average discharge. 33 years (1918-51), 32.8 cfs.

Extremes . - -Maximum discharge during year, 605 cfs Nov. 27 (gage height, 5.S6 ft), from 

rat ing curve extended above 170 cfs on basis of contracted-opening determinations at 

gage heights 8.4 and 9.90 ft; minimum, 1.4 efs Oct. 6.

1916-51: Maximum discharge, 3,000 cfs Sept. 21, 1938 (gage height, 5.90 ft), from 

rating curve extended above 230 cfs by method described above; minimum, 0.08 cfs 

several times in September 1929.

Remarks .--Records good except those for periods of ice effect or no gage-he ighr record, 

wtilcn are fair. Flow regulated by ponds and mill above station.

Revisions (water years). --W 451: 1916. W 871 : Drainage area. W1051: 1919, 1922-24.

Rating table, 

height,

water year 1950-51, except periods 

in feet, and discharge, in cubic f

3.0 

3.5 

4.0 

5.0 

6.0

2.5

2.6

2.7

of ice effect (gage 

et per second)

164

370

650

Discharge, ir -ond, 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.

Oct.

2.5

2.5

10

2.5

1.6

Ii5

1.5

1.6

1.9

12

*14

13

19

8.3

4.3

3.2

3.0

3.0

2.7

2.3

2.2

2.2 

2.3

2.5

4.7

4.8

4.5

2.1

2.5

3.0

2.8

144.0

4.65

0.240

0.28

Nov.

2.5

2.0

2.8

5.0

22

20

17

*15

12

16

14

5.0

5.6

14

16

7.9

10

6.4

3.8

5.0

43

52 

59

49

44

316

502

264

182

107

"

1,820.0

60.7

3.13

3.49

Dec.

83

74

61

58

19£

218

171

100

131

104

98

9£

78

*64

51

40

40

39

35

29

25

23 

20

19

21

19

17

16

18

22

25

1,983

64.0

3.30

3.80

Jan.

27

£5

24

35

45

42

38

36

35

33

30

29

26

20

27

39

43

42

39

39

40

46 

45

48

64

68

58

46

39

32

26

1,186

38.3

1.97

2.27

Feb.

27

43

54

58

53

44

45

90

140

*115

90

64

61

60

56

51

46

78

155

157

115

122 

136

129

97

70

66

66

-

-

-

2,288

81.7

4.21

4.39

Mar.

60

51

46

42

43

45

43

*50

49

39

35

39

40

44

68

69

64

61

58

95

*157

144 

100

88

113

106

86

73

69

83

278

2,338

75.4

3.89

4.48

Apr.

352

212

223

340

228

124

104

94

83

*74

83

84

79

77

71

65

63

60

56

52

47

12

50

65

66

69

68

55

48

44

"

3,078

103

5.31

5.90

May

35

28

30

26

23

18

23

26

£0

18

26

40

34

35

33

*26

20

23

20

12

14

16 

11

27

45

28

26

43

47

37

24

834

26.9

1.39

1.60

June

33

24

12

16

22

24

19

16

9.9

5.3

12

16

4.3

17

48

*41

24

22

15

11

9.7

8.5 

8.1

10

9.7

8.1

6.7

7.0

7.6

13

-

479.9

16.0

0.825

0.90

July

15

17

15

10

13

15

10

6.7

5.6

4.8

*4.3

12

42

33

26

19

16

17

25

54

31

25

17

13

11

9.7

56

52

39

28

663.1

21.4

1.10

1.27

Aug.

£4

40

23

29

22

17

13

18

21

17

12

9.2

8.0

6.8

6.1

6.0

56

5l

47

29

23

32

21

14

12

14

*16

14

13

11

10

638.1

30.6

1.06

1.22

Sept.

11

14

27

26

2£

21

£1

21

6.6

5.7

12

15

15

18

15

14

10

9.3

16

15

17

13

5.8

5.3

14

19

17

13

17

5.7

-

441.4

14.7

0.758

0.85

Calendar year 1950: Max 502 Min 1.0 Mean 34.5 Cfsm 1.78 In. 24.19

Water year 1950-51: Max 502 Min 1.5 Mean 43.5 Cfsm 2.24 In. 30.47

cfsK--Nov. 27 (1 to 3 a.m.) 605 cfs (5.86 ft); Dec. 5 (2 to 4 p.m.) 248 

.m. to 1 p.m.) about 150 cfs; Feb. 19 (3 to 5:30 p.m.) 178 cfs (4.OS ft); 

fs (3.95 ft); Mar. 22 (1:30 to 4 a.m.) 164 efs (4.OO ft); Apr. 1 (2 to 3

ri ^ t Q . ^n 1-^ T 1 r\ m ^ ^Q9 r*Pa t R no fl-^

Peak discharge (base. 150 

cfs (4.44 ft); Feb. 9 (11 a.... .. _

Feb. 23 (7 to 8 p.m.) 155 cfs (3.95 ft), .x . ^ ^.^ u~ , =....., j...

a.m.) 413 cfs (5.18 ft); Apr. 3 (9:3O to 11 p.m.) 392 cfs (5.09 ft). 

* Discharge measurement made on this day. 

Note.--No gage-height record Oct. 27 to Nov 

basis of weather records, recorded ra 

e River near Barre, and Tarbell Brook

;o Nov. 7, Dec. 28 to Jan. 8, Aug. 2-26; discharge estimated 

inge in stage, and records for Moss Brook at Wendell Depot,

Ware River near Barre, and Tarbell Brook near Winchendon. Stage-discharge relation affected by ice 

Dec. 15, 19-27, Jan. 9, 22, 23, Jan. 27 to Feb. 17, Mar. 6, 9-11, 23. Discharge in cubic feet per 

second per square mile and runoff in inches may not represent natural flow because of regulation.
CONNECTICUT RIVER BASIN 209

Millers River at South Royalston, Mass.

Location. Lat 42°37'47", long. 72°09'03", on right bank 500 ft downstream from bridge 

in south Royalston, Worcester County, 0.4 mile downstream from Beaver Brook, and 1.7 

miles downstream from Birch Hill Dam.

Drainage area.--187 sq mi.

Records available.--July 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 792.00 ft above mean sea level, datum of 

T929 (levels by Corps of Engineers).

Average discharge. IS years, 29i cfs (adjusted for storage).

Extremes. Maximum discharge during year, 1,840 cfs Feb. 3 (gage height, 7.08 ft); mini- 

 mum daily, 29 cfs Oct. 8.

1939-51: Maximum discharge, 4,400 cfs Apr. 13, 1940 (gage height, 8.40 ft); minimum daily, 16 cfs Sept. 25, 1939.

Maximum stage knohn, 15.9 ft, from floodmarks, Sept. 21 or 22, 1938.

Remarks.--Records excellent except those for periods of ice effect or no gage-height recora, which are fair. Flow regulated by Lake Monomonac and other reservoirs, by mills 

and power-plants, and at high flow by Birch Hill Reservoir since 1941 (see p. 255) .

Rating table, water year 1950-51, except periDds of ice effect (gage 

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

178

315

5.5 

6.0 

6.5

7.0

550

845

1,220

1,740

Day

1

2

5

4

5

t7

8

9

10

11

12

13

14

IE

1L

17

IE

19

2 Li

I

^

5

4

5

6

7

a

9

30

31

Total

Mean

(t)

Ot.

46

86

80

74

68

54

33

29

30

61

57

88

81

89

51

44

69

67

*62

56

36

32

33

54

62

39

38

61

37

36

58

1,711

55.2

-0.4

HCiV .

36

34

36

58

126

181

156

132

110

93

79

60

54

81

60

54

53

74

51

47

216

271

283

*190

184

786

1,180

1,590

1,610

1,380

-

9,265

309

+47.9

De 2.

1,090

773

600

a510

a580

al,050

al,020

a920

a880

a840

a780

a700

a60O

a480

a440

414

392

374

333

320

*300

230

155

150

TeO

180

160

180

200

225

207

15,243

492

-46.4

Jan.

201

ZZ3

201

308

180

441

392

279

320

330

26O

275

190

160 2~3"5

396

405

*338

364

351

400

390

350

423

611

641

545

470

400

351

340

11,067

357

+2.1

Ftb.

380 '5HO

670

580

535

465

470

911

1,480

1,210

904

713

578

605

600

530

455

749

1,060

1,050

931

1,000

*1,160

1,000

897

761

665

641

_

_

-

21,580

771

+5.2

Mar.

583

525

475

446

465

495

495

530

510

441

396

414

405

428

731

*821

737

578

530

637

924

995

Ff5

833

910

871

767

659

594

653

938

19,664

634

+49.3

Apr.

1,180

1,230

355

938

1,330

1.520

1,410

1,350

1,330

1,260

1,190

931

815

749

689

629

605

545

515

490

450

414

479

*605

617

605

583

505

410

315

-

24,544

818

-54.5

Ha;/

275

£91

220

253

184

154

184

239

168

147

176

311

392

356

239

268

176

213

143

116

126

152

141

213

428

*392

264

414

436

TZ3

360

7,854

253

0

Jun^

311

261

233

226

161

130

126

124

97

73

68

W

79

88

298

450

ISTT

378

246

243

*166

145

124

104

136

178

187

136

126

147

-

5,576

186

-2.5

July

132

147

156

124

99

159

147

106

90

1LI2

90

119

348

460

396

246

181

159

173

356

436

351

229

184

156

136

122

395

623

556

446

7,434

240

+3.4

Aug.

346

295

307

264

187

220

164

168

239

178

213

141

171

190

168

154

268

396

375

346

246

295

271

239

164

128

132

145

178

190

126

6,907

223

-3.5

Sept.

112

112

207

295

2T5

253

*253

220

190

136

168

187

120

168

118

95

90

97

112

106

97

90

79

73

99

139

128

122

112

79

-

4,332

144

-0.9

Adjusted for change in reservoir contents

Mean 

In.

55.0 

0.294 

0.34

327

1.75 

1.95

Calendar year 1950: 

Water year 1950-51:

474 

2.53 

2.92

358 

1.91 

2.21

773 

4.13 

4.30

653 

3.49

4.02

797 

4.26 

4.76

253

1.35 

1.56

Observed

Max 1,610 Min 27 Mean 269 

Max 1,610 Min 29 Mean 370

185 

0.989 

1.10

241

1.29 

1.49

221 

1.18 

1.37

144

0.770 

0.86

Adjusted

Mean 269 Cfsra 1.44 In. 19.51 

Mean 370 Cfsm 1.98 In. 26.88

* Discharge measurement made on this day.

t Change in contents in Birch Hill Reservoir, in millions of cubic feet.

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

and records for Birch Hill Reservoir.

Note.--Stage-discharge relation affected by ice Dec. 20-23, 25-30, Jan. 5, 9-11, 14, 17, 22, 23, 

28, Jan. 31 to Feb. 6. Discharge in cubic feet per second per square mile and runoff in inches may 

not represent natural flow because of regulation.
210 CONNECTICUT RIVER BASIN

East Branch Tully River near Athol, Mass.

Location. Lat 42°38'32", long. 72°13'34", on right bank 300 ft downstream from Tully 

Dam, 1.3 miles downstream from Lawrence Brook, and 3-J miles north of Athol, Worcester

County.

Drainage area. 50.4 sq mi.

Records available. June 1916 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 613.71 ft above mean

 Sea level, datum of 1929 (Corps of Engineers benchmark). Prior to Oct. 26, 1948, staff 

gage at site 0.2 mile upstream at datum 14.40 ft higher.

Average discharge.--35 years, 83.3 cfs.

Extremes.--Maximum discharge during year, 826 cfs Apr. 12 (gage height, 5.18 ft); minimum,

 U.3 cfs Dec. 22; minimum daily, 3.1 cfs Oct. 8, 9.

1916-51: Maximum discharge, 5,140 cfs Sept. 21, 1938 (gage height, 8.60 ft, from 

floodmarks, site and datum then in use), average of determinations by computation of 

flow over dam and by contracted-opening determination; minimum, 0.03 cfs Jan. 4, Mar. 3, 

1949; minimum daily, 0.3 cfs Jan. 3, 1949.

Remarks. Records excellent except those above 500 cfs and those for periods of shifting

 control, which are good. Flow regulated by Tully Reservoir since November 1948 (see 

p. 255).

Revisions (water years).--W 451: 1916. W 781: 1928{M). W 891: Drainage area. W 1051: 

iaib(M), iaz».

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 Dec Dec. 4 to Mar. 13 Mar. 13 to Sept. 30

2.5 2.8

2.6 6.5

2.7 12

2.9 29

3.1 55

3.5 

4.0 

4.5 

5.0

131

260

430

700

2.9 

3.1 

3.5 

4.0 

4.5

117

219

336

2.6

2.7 

2.9

3.1

6.5

12

29

3.5 

4.0 

4.5 

5.0

119

248

430

70O

Discharge, In cubic feet pe scond, 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

23

30

31

Total

Mean

(t)

Oct.

4.4

4.8

4.4

4.4

4.1

3.8

3.8

3.1

37T

4.1

7.8

13

*34

48

37

29

24

18

14

14

13

12

10

10

10

11

11

10

9.9

9.9

9.9

395.5

12.8

+0.1

Nov.

9.9

9.4 9"75

14

60

105

89

68

55

45

37

30

26

23

22

20

22

25

24

*23

108

149

82

58

78

305

500

234

239

424

-

2,914.2

97.1

+70.4

Dec.

628

e512

e261

150

49

233

282

212

196

213

256

*229

177

167

*165

155

127

125

87

60

60

26

71

44

46

46

46

44

44

44

46

4,764

154

-50.5

Jan.

V

47

46

46

90

109

108

108

106

79

43

43

43

43

*70

100

100

100

100

98

98

1OO

111

119

119

179

204

T53

106

69

50

2,834

91.4

-1.0

Feb.

51

52

56

57

99

121

107

85

183

223

221

219

219

215

156

149

155

157

188

206

232

*261

~Z53 263

243

202

141

143

_

_

-

4,663

167

+11.4

Mar.

153

153

151

149

125

113

113

115

117

115

109

89

2S3

195

168

*175

163

153

146

190

288

300 '2"48~

236

272

272

236

202

183

216

294

5,707

184

-2.6

Apr.

357

389

204

217

266

319

345

342

338

338

401

584

504

50O

439

300

216

178

148

132

121

111

126

*170

168

163

158

134

119

108

-

7,895

263

-27.4

May

94

82

74

66

62

58

54

51

48

45

51

100

119

TO2

84

70

59

49

44

40

39

36

33

5T

*102

82

65

89

97

80

63

2,092

67.5

-0.2

June

49

40

36

34

33

28

24

20

16

15

14

12

10

T5

95

130

TT3

*87

66

47

35

27

24

25

29

27

22

20

20

35

-

1,151

38.4

0

July

41

41

33

24

22

33

30

22

16

13

11

IS

76

81

55

35

27

26

42

113

100

70

51

37

27

20

16

76

132

106

76

1,468

47.4

+0.1

Aug.

61

70

62

54

45

34

*26

26

37

33

28

27

44

30

21

21

37

148

TZI

102

81

92

89

68

54

45

39

34

33

27

23

1,682

54.3

-0.2

Sept.

23

41

76

84

TO

48

*39

33

26

21

18

17

16

15

24

68

63

45

34

27

22

18

16

16

16

33

31

28

24

20

-

1,008

33.6

0

Adjusted for change In reservoir contents

Mean 

Cf sm

12.8 

0.254 

0.29

124 

2.46 

2.75

Calendar year 1950: 

Water year 1950-51:

135 

2.68 

3.08

91.0 

1.81 

2.08

171 

3.39 

3.54

183 

3.63

4.19

253 

5.02 

5.59

67.4 

1.34 

1.54

Observed

Max 628 Mln 1.2 Mean 82.0 

Max 628 Mln 3.1 Mean 100

38.4 

0.762 

0.85

47.4 

0.940

1.08

54.2

1.08 

1.24

33.6 

0.667 

0.74

Adjusted

Mean 82.6 Cfsm 1.64 In. 22.26 

Mean 100 Cfsir 1.98 In. 26.97

* Discharge measurement made on this day.

t Change In contents In Tully Reservoir, In millions of cubic feet.

e Shifting-control method used.
CONNECTICUT RIVER BASIN 211 

Moss Brook at Wendell Depot, Mass.

Location. Lat 42°36'10", long. 72"21"36", on left bank a quarter of a mile upstream from 

mouth and a quarter of a mile north of Wendell Depot, Franklin County.

Drainage area.--12.3 sq mi.

Records available.--June 1909 to August 1910, June 1916 to September 1951. Published as 

"at Wendell" 1909-10.

Sage. Staff gage read twice daily except during period Dec. 27 to Mar. 24, when it was 

read once daily. Datum of gage is 508.9 ft above mean sea level, datum of 1929. 

Prior to April 1910, staff gage at site 1,200 ft downstream at different datum. April 

to August 1910, staff gage and sharp-crested weir at site 300 ft downstream at different datum.

Average discharge . 35 years (1916-51), 21.0 cfs.

Extremes.--Maximum discharge during year, 364 cfs Mar. 31 (gage height, 4.00 ft, from 

graph based on gage readings); maximum gage height, 4.76 ft Feb. 9, 10 (ice jam, from 

graph based on gage readings); minimum discharge, 6.9 cfs Oct. 3-9.

1916-51: Maximum discharge, 1,540 cfs Mar. 19, 1936 (gage height, 6.30 ft, from 

floodmarks), from rating curve extended above 280 cfs on basis of slope-area determinations at gage heights 5.62 and 6.30 ft; minimum, 0.2 cfs Sept. 4, 5, 1929.

Remarks. Records good except those for periods of ice effect, which are fair.

Revisions (water years) . W 821: 1936(M). W 891: Drainage area. W 1051: 1917, 

iyj.9-25, 19291m).

height, in feet, and discharge, in cubic feet pe

.0 0.9

3.6 

7.6

1.7 14

138

283

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.

Oct.

1.6

1.4

.9

.9

.9

.9

.9

.9

.9

4.7

6.5

10

9.8

4.8

3.2

*2.7

2.2

2.0

1.9

1.8

1.5

1.5

1.6

1.8

1.8

1.8

1.6

1.5

1.6

1.6

1.5

76.7

2.47

0.201

0.23

Nov.

1.4

1.4

1.7

4.1

18

12

6.7

5.0

4.3

3.6

3.0

2.8

2.4

2.3

2.3

2.3

3.2

3.0

2.5

3.2

*20

18

9.4

7.0

7.9

115

93

40

28

22

-

445.5

14.8

1.20

1.35

Dec.

17

14

13

15

94

69

36

32

62

50

40

39

31

24

21

19

18

17

16

15

*14

12

10

10

11

10

9.4

8.8

9.2

12

13

761.4

24.6

2.00

2.30

Jan.

14

13

12

18

32

25

19

17

16

15

14

13

12

11

*18

24

24

20

17

17

21

26

23

28

15

40

28

22

17

15

14

630

20.3

1.65

1.90

Feb.

16

30

33

22

17

18

20

50

100

60

45

32

25

29

30

27

23

64

130

72

55

*70

86

58

45

38

39

43

-

-

-

1,277

45.6

3.71

3.86

Mar.

39

31

26

27

28

29

31

34

30

25

Zi

22

27

29

46

45

39

36

*34

71

96

57

39

49

91

59

55

36

40

62

269

1,523

49.1

3.99

4.60

Apr.

174

72

200

208

100

70

58

50

46

39

58

51

54

56

46

56

39

37

32

29

25

23

41

45

36

*41

34

28

24

2JL

1,774

59.1

4.80

5.36

May

19

17

16

14

13

13

12

12

11

11

13

36

34

23

17

14

*12

11

9.4

9.1

8.8

7.9

lil

19

24

14

12

25

20

14

11

479.6

15.5

1.26

1.45

June

7.9

7.0

7.0

6.7

7.9

6.3

5,0

4.3

3.7

3.3

2.9

2.8

2.5

15

49

52

32

*19

13

9.1

7.2

5.8

5.4

6.5

10

7.2

5.8

5.4

7.2

14

330.9

11.0

0.894

1.00

July

12

9.4

6.7

4.6

4.6

8.2

6.3

4.6

3.4

2.8

2.5

7.2

25

15

6.7

4.8

4.3

6.3

13

3JL

19

8.8

6.7

5.0

3.7

3.0

2.3

23

31

16

8.2

305.1

9.84

0.800

0.92

Aug.

6.7

7.6

5.4

6.7

5.0

3.6

2.9

5.0

7.6

5.4

4.4

3.4

3.0

2.5

2.2

2.2

40

39

23

14

11

20

13

8.2

7.0

8.8

8.2

14

9.4

7.6

5.0

301.8

9.74

0.792

0.91

Sept.

6.7

15

30

20

12

8.2

*7.9

6.5

5.0

4.3

3.6

4.3

3.9

3.4

13

31

16

9.1

6.7

5.4

4.8

4.3

4.3

4.3

5.0

9.4

7.2

7.2

5.2

4.6

268.3

8.94

0.727

0.81

Calendar year 1950: Max 166 Min 0.6 Mean 17.1 Cfsm 1.39 In. 18.90

Water year 1950-51: Max 269 Min 0.9 Mean 22.4 Cfsm 1.82 In. 24.69

31 (7:30 to 10:30
212 CONNECTICUT RIVER BASIN

Millers River at Erving, Mass.

Location. Lat 42"35'51", long. 72"26'19", on right bank 75 ft downstream from bridge at 

FarTey, 0.6 mile upstream from Mormon Hollow Brook, 2.4 miles downstream from Erving, 

Franklin County, and 5.5 miles upstream from mouth.

Drainage area. 375 sq mi.

Kecoras available.--August 1914 to September 1951.

uage.--water-stage recorder. Altitude of gage is 380 ft (from topographic map). Prior to

 Tune 30, 1915, staff gage, June 30, 1915, to Sept. 20, 1938, water-stage recorder, and 

Sept. 21, 1938, to Dec. 31, 1938, staff gage at site 2.2 miles upstream at different 

datum. Jan. 1 to Mar. 29, 1939, staff gage, and Mar. 30, 1939, to Sept. 12, 1941, 

water-stage recorder at site 0.4 mile downstream at different datum.

Average discharge.--37 years, 622 cfs.

extremes.--Maximum discharge during year, 4,010 cfs Apr. 3 (gage height, 6.53 ft); minimum daily, 60 cfs Oct. 1,8.

1914-51: Maximum discharge, 29,000 cfs Sept. 22, 1938 (gage height, 13.37 ft, from 

floodmarks , site and datum then in use), mean of two slope-area determinations; practically no flow at times during 1915 and 1916 because of regulation; minimum daily, 

8 cfs Sept. 6, 1926.

Remarks. Records excellent except those for periods of ice effect, which are fair.

Flow regulated by powerplants , Lake Monomonac and other reservoirs, and at high flow 

by Birch Hill and Tally Reservoirs (see p. 255).

Revisions (water years). W C41: 1920(M). ¥756: Drainage area. W781: 1928(M) ,

atlng table, water year 1950-51, except periods of Ic 

height, In feet, and discharge, In cubic feet pe

195

396

effect ( 

second)

Day

1

2

3

4

E

f

1

b

3

lu

11

12

13

14

15

lr

17

15

13

20

21

23

24

2E

op

27

IB

30

31

Total

Mean

(t)

. .

60

1G5

127

119

106

78

80

60ei

118

129

167

131 T7B~

143

39

07"9

* 21

11

86

63

122

103

92

112

83

61

92

98

85

3,324

137

-3.3

Nov.

108

79

m

81

291

376

352

277

234

201

152

140

152

128

139

133

123

116

126

138

505

b72

575

410

*384

2,280

2,670

2 , 500

2,450

2,220

-

18 , 100

603

+118.3

Be::.

1,980

1 , 690

1,340

1,070

1,730

1,960

1,930

1 , 740

1,680

1,480

1,410

1 , 440

1,260

1,090

930

900

800

770

630

560

550

52C

380

350

51C

340

330

36O

390

440

42C

30 , 830

995

-96.9

Jan.

440

450

420

640

1,050

980

831

712

630

640

600

560

516

380 *56~2~

860

880

838

740

720

800

830

760

1.070

1,280

1.210

1 , 100

950

780

650

430

23.30a

752

+1.1

Feb.

540

5973"

1,050

1,010

920

860

1,220

1,830

2,030

2,090

1,760

1.460

1,230

1,290

1,190

1,050

950

1,720

2,170

2,020

1,790

*2,260

2,380

1,980

1,770

1,490

1,340

1,240

_

_

-

41,630

1,487

+16.6

War.

1,160

1,070

992

950

985

1,010

1,010

1,070

1,030

9L5

824 BB"5"

873

1 , 090

1,310

1,440

1,340

1,150

*1,090

1 , 4 1O

1,950

1,920

1,680

1,730

1,96O

1,780

1,510

1,300

1,250

1,420

3,320

41,338

1,335

+46.7

Apr.

£,990

2,57O

3 , 400

2,99O

2,600

2,750

2,630

2,400

2,320

2,230

2,330

2,180

2,100

1,800

1,640

1,420

1,360

1,200

1,080

1,OSO

929

859

1,060

1,240

1,210

+1,230

1,140

1,040

901

712

-

53,331

1,778

-81.3

Hay

672

646

562

542

474

376

396

480

418

372

411

754

852

TW

614

549

*445

412

372

275

295

312

312

463

789

754

568

761

810

705

646

16,812

542

-0.2

June

542

474

423

4-12

376

307

259

256

221

167

175

180

*201

290

852

 

1,020 555"

761

568

450

386

299

279

231

293

352

319

303

283

338

-

11,903

397

-2.5

July

299

291

291

252

227

303

303

227

192

178

184

243

672

74O

634

453

367

321

402

789

719

608

521

328

307

271

238

513

985

9E4

768

13,590

438

+3.5

1951

Aug.

582

516

492

434

357

325

321

301

372

362

295

259

275

321

295

296

582

775

72T3"

653

536

575

542

428

362

275

291

Z91

291

287

259

12,676

409

-3.7

Sept.

201

260

434

556 ¥74"

407

*381

338

283

256

237

283

263

220

317

321

299

227

214

201

187

162

157

157

154

231

238

221

205

167

-

8,051

268

-0.9

Adjusted for change In

107

0.285

0.33

649

1.73

1.93

1,746

4.66

5.19

440

1.17

1.35

Win 60

In. 20.34 

In. 27.27

* Discharge measurement made on this day. 

t Change In contents In Birch H11L and Tully Rese 

Note . Stage-discharge relation affected by Ice 

anTT6 to Feb. 2, Feb. 5, 6, 15-17.

PS, In millions of cubic feet. 

15 to Jan. 6, Jan. 9-12, 14, ]
CONNECTICUT RIVER BASIN 213

Connecticut River at Turners Falls, Mass.

Location. Lat 42°36'40" ) long. 72°33'20", at dam of Western Massachusetts Electric Co., 

 Turners Falls, Franklin County, 0.2 mile upstream from Falls River.

Drainage area. 7,163 sq mi.

Records available. January 1915 to September 1951.

Average discharge.--36 years, 11,750 cfs (adjusted for storage).

Remarks.--Discharge computed by adding flow over and through dam, flow for factories 

through canal that diverts around dam, and flow through power stations 1 and 2 of 

Western Massachusetts Electric Co. Flow regulated by powerplants and by First 

Connecticut and Second Connecticut Lakes, Lake Francis since 1940, Comerford Station 

Pond since 1930 (see p. 255 ), and other reservoirs (combined usable capacity, about 19-p 

billion cu ft).

Cooperation. Records furnished by Western Massachusetts Electric Co. 

Revisions (water years). W 741: 1932. W 891: 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

(t)

Oct.

138

2,990

2,220

2,770

2,290

2,480

1,310

138

3,300

4,360

5,440

6,180

5,200

5,560

5,400

5 , 000

4,420

3,540

3,760

2 , 950

2,450

440

5,990

4,090

4,890

4,790

4,040

2,100

138

2,300

2,410

103,084

3,325

-526

Nov.

3,090

3,320

2,770

1,080

3,760

7,280

10,000

10,000

6,200

5,300

3,600

138

5,560"

3,680

5,570

4,730

6,010

1,890

773

6,690

10,500

14,100

9 , 860

7,770

5,040

35,700

62,300

44,300

39,10u

36,100

-

356,211

11,870

+2,598

Dec.

34 , bOO

21,900

16,800

12,200

35,000

45,200

35,200

33,400

33,500

29,300

23,500

22,200

20,900

18,500

17,500

15,800

9,640

10 , 300

12,700

11,800

10 , 600

7,010

7,090

5,880

4,210

6,780

8,080

5,720

t ,290

3 , 820

3 , 100

528,520

17,050

-981

Jan.

3,870

8,160

8,090

8,940

10 , 900

11,200

10,400

8,610

7,160

7,680

7,550

8,240

7,130

1,880

9,000

10,100

9,230

9,450

9,160

8,030

5,930

11,000

11,400

12,600

14 , 800

16,000

14,700

5,380

9,010

9,200

8,b70

283,470

9,144

-2,171

Feb.

5,940

9 , 550

11,000

7,780

10,700

9,480

10,200

23,590

26,200

17 , 800

12,000

11,300

13,300

13,500

13,800

13 , 400

14,400

12,700

14,600

14,600

14,bOO

16,100

15 , 600

14,500

6,770

9,670

12,200

13,100

_

_

-

368,290

13 , 150

-899

Mar.

14,100

14,000

11,500

5,840

9,610

10,500

10 , 900

10,700

11,500

10,600

5,300

9^ 650

10,500

14,400

15,600

17,600

16,200

16,000

16,200

16,600

17,700

17,400

16,300

13,700

14,800

16,700

16,400

15,800

15,800

80,600

80,500

506,000

16,320

-1,111

Apr.

90,900

73,200

73,500

78,100

69,500

63,600

60,200

61,700

60,100

60,100

74,000

75,600

75,300

73,700

65,300

59,700

51,400

43 , 400

36,300

32 , 100

27,900

24,200

25 , 800

33,700

32,600

35,300

45,500

46,100

41,300

36,700

-

tl,E26.8

54,230

+4,355

May

31,300

27,600

24,000

19,400

18,500

14,500

13 , 000

10,300

12,300

12,400

11,500

12,700

16,100

12,600

10,700

14,300

12,300

9,290

12,400

12 , 500

10,600

9,840

10,500

11,700

13,400

8,020

4,100

11,700

18,200

17,200

15,000

437,950

14,130

+1,279

June

13,200

11,900

6,220

9,670

8,600

8,280

8,910

6,790

4,770

2,230

7,640

5,660

4,760

7,040

9,900

7,790

2,670

8,750

6,700

7,310

6,280

4,960

2,760

1,450

8,740

7,810

5,810

5,480

5,460

6,160

-

203,700

6,790

-891

July

4,540

6,450

7,130

3,520

5,620

7,590

7,760

2,560

7,210

4,820

5,010

8,670

9,070

7,150

3,510

6,130

8,270

7,060

7,900

10,800

11,900

3,930

7,340

6,090

5,680

4,440

4,650

3,230

7,200

11,000

6,300

204,530

6,598

+ 404

Aug.

6,280

5,730

6,770

5,710

1,680

6 , 830

5,080

5,380

5,050

6,500

3,180

138

5,330"

3,640

3,770

3,740

9,540

10,600

1,490

6,300

5,810

8,740

11,700

9,520

2,440

3,220

5,340

5,910

5,720

6,140

6,770

174,048

5,614

-394

Sept.

4,660

4,840

6,140

6,840

5,280

6,910

6,950

6,140

2,860

5,230

6,200

5,230

5,470

4,860

5,540

2,880

6,260

6,420

4,870

4 , 830

3,810

3,130

1,090

5,160

4,850

4,980

5,990

7,410

4,280

1,590

-

150,700

5,023

-1,214

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

3,129 

0.437 

0.50

12,880 

1.80 

2.01

Calendar year 1950: 

Water year 1950-51:

16,680 

2.33 

2.69

8,334

1.16 

1.34

12,780 

1.78 

1.66

15,910 

2.22

2.56

55,910 

7.81 

8.71

14,600 

2.04 

2.35

Observed

Max 75,800 Min 138 Mean 11,630 

Max 90,900 Min 138 Mean 13,540

6,446 

0 . 9OO 

1.00

6,749 

0.942 

1.09

5,467 

0.763 

0.88

4,555 

0.636 

0.71

Adjusted

Mean 11,650 Cfsm 1.63 In. 22.09 

Mean 13,560 Cfsm 1.89 In. 25.70

t Change In contents in First Connecbici. 

Station Pond, Union Village Reservoir, 4 i 

Mountain, Birch Hill, and Tully Reservoirs

* Expressed in thousands.

and Second Connecticut Lakes, Lake Francis, Comerford 

servoirs in Mascoma River basin, Sunapee Lake, and Surry 

in millions of cubic feet.
214 CONNECTICUT RIVER BASIN

Deerfield River at Charlemont, Mass.

Location.--Lat 42°37'33", long. 72°51"20", on left bank 1 mile downstream from Charlemont, 

Franklin County and 2.5 miles downstream from Chickley River.

Drainage area.--362 sq mi.

Records available.--June 1913 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 517.36 ft above mean sea level, datum of

Average discharge. 38 years, 888 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 16,100 cfs Nov. 26 (gage height, 10.52 ft); minimum, 53 cfs Oct. 8; minimum daily, 66 cfs Nov. 1.

1913-51: Maximum discharge, 56,300 cfs Sept. 21, 1938 (gage height, 20.17 ft, from 

floodmarks), from rating curve extended above 31,000 cfs on basis of slope-area and 

contracted-opening determinations at gage heights 17.75 and 20.17 ft; no flow June 17, 

1921; minimum daily, 5 cfs June 17, 1921.

Remarks.--Records good, tflow regulated by Somerset Reservoir, since 1924 by Harriman 

Reservoir (sen p. 255), and by several powerplants above station.

Revisions (water years).--W 781: 1915(M).

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

and discharge, in cubic feet per second)

(Stage-discharge relation affected by ice Nov. 29, 30,

Dec. 27, 2S, Jan. 1, 2, 9, 31, Feb. 7, 10)

1.5 

1.7 

2.0

64 

118 

227 

5OO

4.0 1,920

5,210

11,900

13,200

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

(t)

Oct.

129

339

4bO

464

382

428

414

154

518

aSOO

a84O

a420

a470

a320

a35O

3490

a440

*a37O

613

392

325

338

510

708

849

704

772

502

264

422

10B

14,295

461

-386

Nov.

66

71

281

408

936

604

172

282

416

229

220

204

729

678

728

628

684

635

390

833

1,330

805

192

*509

2,100

12,100

4 , 140

2,340

1,850

1,550

-

36,110

1,204

+ 915

Dec.

1,190

630

525

1,460

4,990

3,090

2,400

3,140

3,460

2,110

1,720

1,710

1,320

1,250

1,210

1,200

1,160

1,160

1,140

*1,130

1,150

1,120

1,090

583

438

740

1,050

1,150

1,130

987

430

45,863

1,479

-742

Jan.

200 580"

1,070

1,400

1,390

941

380

1,040

1,160

1,110

1,110

1,100

902

288

1,090

*1,330

1,210

1,160

1,180

1,260

808

1,050

1,260

1,750

1,680

1,330

1,200

662

990

1,150

1,200

32,981

1,064

-337

Feb.

1,510

2 , 200

1,390

949

1,140

1,290

1 , 500

1,560

1,320

1,200

607

1,540"

1,240

1,390

1,260

al,150

al,050

al,000

al , 150

*al,600

1,640

1,970

1,570

1,290

9O6

778

1,580

1,580

-

_

-

36,860

1,316

-258

Mar.

,470

,500

,680

,850

,780

,810

,860

,990

,870

,790

,800

* ,840

,580

,590

,660

,57O

,560

,560

,55O

,74O

,100

,280

,090

,110

751

968

,090

,190

,48O

,370

8.240

55,719

1,797

-799

Apr.

3,400

2,880

3,840

2,810

1,800

1,740

1,890

2,420

2,490

3,200

4,150

3,310

4,310

3,530

3,010

2,640

2,360

1,940

1,760

1,310

1,590

1,310

1,980

2,800

*1,910

2,140

2,550

2,360

1,690

1,480

-

74,6OO

2,487

+2,136

May

1,220

896

754

794

530

277

728

574

602

612

860

1,230

554

806

*775

544

710

519

268

154

611

795

898

1,140

1,160

325

215

602

662

768

436

21,019

678

+224

June

317

232

192

624

598

593

617

567

410

230

500

617

*678

1,210

1,380

45b

234

686

676

592

566

592

401

370

724

742

828

902

1,020

426

-

17,980

599

-48

July

494

773

809

316

326

654

496

146 T60"

594

834

966

1,080

700

399

482

557

578

1,330

1,420

788

519

728

650

668

652

»729

539

252

658

714

20,311

655

-178

Aug.

772

562

424

246

109

337

498

561

544

461

322

240

430

533

585

698

886 235"

227

506

516

542

619

350

316

212

390

380

337

374

406

13,618

439

-129

Sept.

25"

31-

82t

1,02C 8~6l

*98£

884

24S

201

65C

944

953

953

854

304

234

844

962

935

926

862

220

192

754

962

935

944

892

373

161

-

20,458

682

-775

Adjusted for change

Mean 

Cfsm 

In.

317

0.876 

1.01

1,557 

4.3C 

4.8C

Calendar year 1950: 

Water year 1950-51:

1,202 

3.32

3.83

938 

2 .59 

2.99

1,210 

3.34 

3.48

1,499 

4. 14 

4.77

3,311 

9.15

10.20

762 

2.10 

2.43

Observed

Max 12 , 100 Min 44 Mean 94O 

Max 12,100 Min 66 Mean 1,068

581 

1.60 

1.79

589 

1.63

1.88

391

1.O8 

1.25

383 

1.06 

1.18

Adjusted

Mean 983 Cfsm 2.72 In. 36.88 

Mean 1,056 Cfsm 2.92 In. 39.61

* Discharge measurement made on this day. 

t Change in contents in Somerset and Harriman 

a No gage-height record; discharge estimated 

recorded range in stage, and powerplant records

of cubic feet.

weather records
CONNECTICUT RIVER BASIN 215 

North River at Shattuckvllle, Mass.

Location. Lat 42°38'18", long. 72°43'32", on right bank in Shattuckvllle, Franklin 

county, l£ miles south of Grlswoldville and 1.3 miles upstream from mouth.

Drainage area.--88.4 sq ml.

Records available. December 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 458.36 ft above mean sea level, datum of

Average discharge.--12 years, 171 cfs.

Extremes. Maximum discharge during year, 6,500 cfs Mar. 31 (gage height, 8.32 ft), from 

rating curve extended above 3,000 cfs on basis of computation of flow over dam at gage 

height 9.62 ft; minimum, 8.9 cfs Nov. 2; minimum daily, 17 cfs Oct. 6, 8.

1939-51: Maximum discharge, 10,000 cfs Dec. 31, 1948 (gage height, 9.62 ft), from 

rating curve extended above 3,000 cfs as described above; minimum daily, 5.1 cfs Oct. 

3, 1948.

Remarks. Records excellent except those for periods of ice effect, which are fair. 

DTurnal fluctuation at low flow caused by mill above station; prior to 1950, greater 

regulation by mill.

Revisions (water years).--W 1111: 1945(M).

Rating tatle, 

height,

ater year 195O-51, except periods of ice effect (gage 

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

1.7 

1.9 

£.1 

2.5 

3.0

117

229

3.5

4.0 

5.0 

6.0 

7.0

410

670

1,370

2,420

3,880

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

Cf sm

In.

Oct.

23

22

20

19

18

17

18

17

18

47

"65 107

86

72

51

41

36

*34

31

30

28

28

28

33

36

41

33

31

31

33

28

1,126

36.3

0.411

0.47

Nov.

25

Tf

28

44

303

146

91

73

65

59

52

49

45

43

42

43

52

52

46

45

443

172

103

*90

130

~554 1,950

322

289

224

-

5,587

186

2.10

2.35

Dec .

184

161

157

555

962

362

258

987

S?3

446

506

404

287

235

198

206

189

168

145

*130

140

140

144

138

115

105

90

95

105

110

110

8,655

279

3.16

3.64

Jan,

105

95

IW

285

337

206

164

135

125

130

14O

132

117

110

180

*240

190

146

149

193

285

190

140

400

355

240

185

150

140

130

110

5,639

182

2.06

2.37

Feb.

150

47D

260

200

175

160

310

580

50T5

220

215

210

225

410

290

205

195

324

297

*229

238

333

280

220

210

215

290

27O

_

-

-

7,441

266

3.01

3.13

Mar.

221

201

181

179

172

172

179

227

177

150

150

183

206

248

297

249

226

221

221

*493

358

287

235

496

505

315

270

340

555

1,320

3,820

12,854

415

4.69

5.41

Apr.

1,380

1.010

1,750

1,000

700

696

879

864

767

750

1,000

64O

980

629

485

419

414

325

333

308

255

235

477

329

*310

37O

264

224

206

186

-

18,165

606

6.86

7.64

May

161

149

136

128

119

112

106

97

94

93

162

278

175

134

*117

103

91

93

86

B2

101

115

89

302

236

134

158

345

T5T

238

157

4,572

147

1.66

1.92

June

115

97

91

91

83

70

61

56

52

50

46

43

*41

2ZT

524

232

163

228

170

108

83

70

125

239

219

141

109

94

111

181

-

3,720

124

1.40

1.57

July

164

117

85

72

74

185

104

75

63

56

57

249

292

125

85

68

87

145

348

455

175

125

119

96

79

70

63

76

136

93

*70

4,006

129

1.46

1.69

Aug.

94

104

68

75

60

52

48

50

60

55

48

43

45

40

54

195

383

T35

88

69

76

110

72

60

56

57

72

84

59

50

45

2,489

80.3

0.908

1.05

Sept.

52

222

392

T55

108

*88

144

91

70

60

56

64

55

51

136

106

72

59

54

50

46

46

41

44

52

84

54

90

59

50

-

2,660

88.7

1.00

1.12

Calendar year 1950: Max 1,950 Mln 11 Mean 181 Cfsm 2.05 In. 27.81

Water water year year 1950-51: igbu-bi: Max Max 3,820 5,B2U Mln Mln 17 17 Mean Mean 211 zn Cfsm utsm 2.39 z.sy In. in. 32.36 sz.ib _____

Peak: discharge (tase, 1,880 cfs).--Nov. 26 (4:30 a.m.) 4.54O cfs (7.38 ft); Dec. 4 (11 p.m.) 2,11O 

cfs (5.74 ft); Dec. 8 (5 to 5:30 p.m.) 2,040 cfs (5.67 ft); Mar. 51 (5:30 a.m.) 6,500 cfs (8.32 ft); 

Apr. 3 (2 p.m.) 2,750 cfs (6.25 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 19-22, Dec. 26 to Jan. 4, Jan. 8-11, 14-17, 

JanTTl to Feb. 17, Fe"b. 24-28, Mar. 10, 11, 23, 26, 27.
CONNECTICUT RIVER BAoIN

Deerfield River near West Deerfield, Mass.

Location.--Lat 42°32'09", long. 72°39'14", on right bank 0.4 mile downstream from South

 River, l£ miles west of West Deerfield, Franklin County, and 2£ miles west of Deerfield.

Drainage area.--558 sq mi.

Records available.--March 1904 to December 1905 (gage heights only), October 1940 to September 1951.Published as "at Deerfield" 1904-5.

Gage.--Water-stage recorder. Altitude of gage is 155 ft (from topographic map). Prior to 

Dec. 16, 1905, chain gage at site 1.5 miles downstream.

Average discharge.--11 years (1940-51), 1,243 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 24,400 cfs Nov. 26 (gage height, 10.50 ft); minIrnum daily, 50 cfs Nov. ".

1940-51: Maximum discharge, 48,500 cfs Dec. 31, 19.48 (gage height, 15.43 ft); minimum daily, 46 cfs Aug. 3, 1947.

Remarks.--Records excellent except those for periods of ice effect, which are good. Flow

 regulated by Somerset and Harriman Reservoirs (see p. 255 ), and by several powerplants 

above 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 tj No 26 to Sept. 30

October 1950 to September 1951

Day May

366

TBT

1,330

1,990

1,920

2,240

2,320

2,570

2,340

2,160

322

240

647

1,400

1,370

1,210

1,890

1,230

422

520

1,070

1,660

1,120

984

976

91O

502

717

858

694

739

'996

893

1,110

665 

745 

*854 

490 

266

778

932

1,11C

1,72C

1,740

740

756

494

544

366

464

686

785

1,400

2,560

918 

560 

97O 

1,040 

746

705

483

567

740

890

779

580

493

992

331 

5^6 

485 

711

904

1,350

1,480

850

613

701

5,110

2,900

2,360

1,850

1,530 

1,490 

9b8 

1,170 

1,400 

1,270

817 

668 

7O8 

477 

722 

918

1,170

1,130

974

* 1,130

1,580 502"

568

588

976

1,140

949

1,070 

488 

200 539"

1,020

1,100

1,080

1,01O

580

294

44,682 

1,489 

+915

60,366 

1,947 

-742

42,888 

1,383 

-337

52,490 

1,875 

-258

108,460

3,615

+2,136

29,320

946

+224

23,425

781

26,142

843

-178

24,656

822

-775

Adjusted for change In

Mean 

Cfsm 

In.

366 

0.656 

0.76

1,842 

3.3C 

3.68

Calendar year 1950; 

Water year 1950-51;

1 ,b70 

2.99 

3.45

1,258 

2.25

2.60

1,768 

3.17 

3.30

2,427 

4.35 

5.01

4,439 

7,96

8.88

1,029 

1.84 

2.13

Observed

Max 16,400 Mln 50 Mean 1,283 

Max 16,400 Mln 50 Mean 1,456

762 

1.37 

1.52

777 

1.39 

1.61

554 

0.993 

1.14

523 

0.937 

1.05

Adjusted

K^an 1,326 Cfsm 2.38 In. 32.27 

Mean 1,444 Cfsm 2.59 In. 35.13
CONNECTICUT RIVER BASIN 

Connecticut River at Montague City, Mass.

217

Location.--Lat 42°34'48", long. 72°34'30", on left bank 75 ft downstream from New York, 

New Haven & Hartford Railroad bridge at Montague City, Franklin County, and 1,000 ft 

downstream from Deerfield River.

Drainage area.--7,865 sq mi.

Records available.--March 1904 to September 1951. Prior to October 1932 published as "at 

b'underland."Records published for both sites October 1929 to September 1932.

Gage. Water-stage recorder. Datum of gage is 99.87 ft above mean sea level, datum of

 T929. Prior to Oct. 1, 1917, chain gage, Oct. 1, 1917, to Oct. 3, 1921, water-stage 

recorder used for low stages, chain gage otherwise, and Oct. 9, 1921, to Sept. 30, 193£ 

water-stage recorder at site 9 miles downstream at datum 1.00 ft lower. Gages at both 

sites In operation Oct. 1, 1929, to Sept. 30, 1932.

Average discharge.--47 years, 13,650 cfs (adjusted for storage since October 1923).

Extremes.--Maximum discharge during year, 102,000 cfs Apr. 1 (gage height, 32.30 ft); min-

 imum daily, 688 cfs Oct. 8.

1904-51: Maximum discharge, 236,000 cfs Mar. 19, 1936 (gage height, 49.2 ft, from

floodinarks), from rating curve extended above 160,000 cfs; minimum daily, 325 cfs July

4, 1949. 

Remarks.--Records good except those for periods of Ice effect and those below 1,500 cfs,

which are fair. Flow regulated by powerplants and by First Connecticut and Second

Connecticut Lakes, Lake Francis since 1940, Comerford Station Pond since 1930 (see

p. 255 ), and other reservoirs (combined usable capacity, about 27-t billion cu ft). 

Revisions (water years).--W 471: 1904-13 calendar years, 1914-17. W 741: l'd30-32.

W 731:1928(MJ.W~8yl: Drainage area. W 1U51: lyU5, 190y, 1910, 1912-14, 1920,

1922, 1923, 1925, 19Tri, 192&, drainage area at ounderland.

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. 31

Adjusted for change In reservol

15,240

1.94

2.02

Min

Mean 

Mean

13,000 SMear 

14,920

I.b6 

1.90

Peak discharge (base, bl.OOQ cfs) . Nov. 27 (6 TO 7:3u a.m.) 70,100 nfs (26. eu ft); Apr. 1 (5 ta 

5:30 a.m.) 1O2.OOO cfs (32.30 ft); Apr. 14 (1 to i:3O a.m.) 77,30O -fs (28.15 ft).

* Discharge measurement made on this day.

r Change in _- intents In First Connecticut and Second fonneetirut Lakes, Lake Francis, Comerford 

otation Pond, Union Village Reservoir, 4 reservoirs in Mas'oma River basin, 3unapee Lake, Surry 

Mountain, Birch Hill, and Tully Reservoirs, and 2 reservoirs in Deerfield River basin, in millions o 

cutir fee i .

$ Expressed in thousands.

Note. Stage-discharge relation affected by ice Dec. £7 to Feb. 25 (no gage-height record Feb. 9-

288890 O - 54 - 15
218 CONNECTICUT RIVER BASIN 

Mill River at Northampton, Mass.

Location. Lat 42°19 I 05", long. 72°39'21", on right bank at Northampton, Hampshire 

County, 3? miles upstream from mouth.

Drainage area.--52.8 sq mi.

Records available.--November 1938 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 140 ft (from 

topographic map).

Average discharge.--13 years, 89.8 cfs.

Extremes. Maximum discharge during year, 3,340 cfs Mar. 31 (gage height, 9.38 ft), from 

rating curve extended above 2,000 cfs on basis of computations of flow over dam at 

gage heights 7.£8 and 9.38 ft; minimum, 2.2 cfs Oct. 1; minimum daily, 6.2 cfs 

Oct. 1.

1938-51: Maximum discharge, that of Mar. 31, 1951; minimum, that of Oct. 1, 1950; 

minimum daily, 5.5 cfs Sept. 27-30, 1941, Sept. 10, 1944.

Remarks.--Records excellent except those for periods of ice effect, which are fair. 

Flow regulated by mill above station.

Revisions (water years). V 921: 1940.

Rating table, water year 1950-51, except periods of Ice effect (gage 

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

1.4

1.5

1.6

1.7 

1.9

2.2 

2.5

3.0

4.0 

6.0

68

123

253

680

1,920

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

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

6.2

67e

6.7

7.3

7.3

7.3

7.3

7.6

7.6

13

48

29

23

20

11

16

13

9.5

12

13

9.7

7.9

9.0

16

*10

15

21

20

22

23

21

446.2

14.4

0.273

0.31

Nov.

23

16

13

14

119

43

27

24

20

19

15

11

14

16

15

13

7.7

*15

13

16

95

53

42

30

35

595

T?5

86

79

54

-

1,449.7

48.3

0.915

1.02

Dec.

41

40

37

76

*288

103

81

351

326

162

194

172

127

111

101

101

86

73

58

48

52

54

54

57

48

40

42

45

56

90

80

3,199

103

1.95

2.25

Jan.

64

56

60

120

134

84

72

67

56

62

70

62

60

56

120

142

*96

84

66

103

121

94

76

295

242

134

97

80

74

64

50

2,981

96.2

1.82

2.10

Feb.

170

300

140

110

94

80 *2oo

260

140

120

105

100

125

150

125

100

96

400

285

215

226

540

310

210

190

195

227

212

-

-

-

5,427

194

3.67

3.82

Mar.

167

147

136

135

140

145

159

172

136

115

122

144

159

350

378

226

195

187

179

515

309

229

192

304

273

L95

L62

L64

212

513

1.950

8,390

271

5.13

5.91

Apr .

552

373 *i.ieo ~578

365

297

256

232

212

198

253

192

326

209

172

155

145

132

127

*119

105

99

195

141

130

141

113

99

94 *j}6

-

7,276

243

4.60

5.12

May

76

70

66

62

61

66

61

53

49

48

104

180

101

74

63

56

*50

48

46

47

45

41

39

177

130

71

85

190 ~96

73

64

2,394

77.2

1.46

1.69

June

48

35

41

45

40

37

33

29

22

24

29

24

21

96

190

120

70

80

60

42

36

37

40

68

52

43

33

31

35

59

-

1,520

50.7

0.960

1.07

July

47

*46

33

22

26

22

21

20

21

19

18

135

182

60

46

34

30

60

107

152

67

53

35

25

26

22

20

18

19

20

20

1,426

46.1

0.873

1.01

Aug.

17

17

17

16

i5.

15

15

16

22

22

21

18

16

17

17

21

92

62

34

30

58

64

*43

37

33

28

31

34

30

26

22

928

29.9

0.566

0.65

Sept.

18

51

124

T2

36

30

35

30

24

21

21

13

16

17

67

80

52

32

24

*17

15

16

17

16

21

21

22

27

26

21

-

992

33.1

0.627

0.70

Calendar year 1950: Max 619 Min 5.6 Mean 81.6 Cfsm 1.55 In. 20.97

Water year 1950-51: Max 1,930 Min 6.2 Mean 99.8 Cfsm 1.89 In. 25.65

Peak discharge (base. 1.250 cfs).--Mar. 31 (2:30 a.m.) 3,840 cfs (9.38 ft); Apr. 3 (3 p.m.) 2,120 

cfs (6.34 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 18-22. Dec. 25 to Jan. 4, Jan. 8-15, 17, 

22-24, Jan. 27 to Feb. 19, Feb. 22-24, Mar. 4-6.
CONNECTICUT RIVER BASIN 

Ware River near Barre, Mass.

219

Location.--Lat 42°25'35", long. 72 0 01'30", on left bank 1,100 ft downstream from bridge 

ar aarre Palls, 1.6 miles upstream from Burnshirt River, and 4 miles east of Barre, 

Worcester County.

Drainage area.--55.0 sq mi.

Records available. July 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 745 ft (from topographic map).

Average discharge.--5 years, 83.8 cfs.

Extremes. Maximum discharge during year, about 480 cfs Feb. 9; maximum gage height, 4.78 

rt II'GD . 9 (backwater from ice); minimum discharge, 2.7 cfs Oct. 5, 6.

1946-51: Maximum discharge, 1,450 cfs Mar. 23, 1948 (gage height, 5.93 ft), from 

rating curve extended above 700 cfs by logarithmic plotting; minimum, 1.4 cfs Aug. 28, 

29, 1949.

Remarks. Records excellent except those for periods of ice effect, which are fair. Some 

regulation by Long Pond and other small reservoirs.

Rating tables, water year 1950-51, except periods of Ice effect (gage height, 

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

1.7

1.8

1.9

2.0

Oct. 1 to Feb. 8, 

Aug. 18 to Sept. 30

2.2 

3.3

4.5 

6.1

2.1

2.2

2.3 

2.6

8.4

12

16

34

3.0 

3.5 

4.0 

4.5

72

156

289

475

Feb. 9 to Aug. 17

2.3 

2.5 

3.0

3.5

4.0 

4.5

157

289

475

Discharge, in cubic feet per second, water year October L950 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

23

24

25

26

27

28

29

30

51

Total

Mean

Cf sm

Oct.

4.5

5.5

5.2

3.0

2.7

2.8

3.0

3.1

3.2

4.0

11

14

20

IS

12

11

9.7

*8.9

8.4

7.7

7.2

6.8

6.8

7.5

7.7

7.2

6.8

6.6

6.6

6.6

6.3

227.6

7.34

0.135

0.15

Nov.

6.1

5.9

^T

7.2

16

21

18

15

14

12

11

10

9.4

*8.4

7.9

8.2

8.7

8.7

8.2

9.0

49

69

47

55

41

280

425

m

261

192

-

1,955.8

65.2

1.19

1.33

Dec.

144

113

93

90

144

167

144

131

174

200

188

165

»156

*118

97

91

84

75

68

65

55

50

50

52

54

45

41

H"58

56

70

3,036

97.9

1.78

2.05

Jan.

68

60

60

L02

155

125

106

86

78

76

*72

68

62

58

m

129

125

118

108

108

116

105

95

125

188

175

145

120

105

84

72

5,155

102

1.85

2.15

Feb.

85

ITCT

215

175

140

115

145

365

3~6"0~ 450

250

178

*163

174

160

145

150

222

522

274

221

298

343

255

245

205

178

170

_

-

-

6,153

220

4.00

4.16

Mar.

146

136

126

123

131

140

144

149

140

115

105

T5T

*118

142

280

283

232

192

168

216

'2~5E 319

244

238

264

244

205

180

170

185

289

5,841

188

3.42

3.95

Apr.

387

343

336

437

394

326

277

246

224

*202

190

183

174

172

161

151

144

135

128

123

113

107

142

185

172

155

142

128

115

105

-

6,097

203

3.69

4.12

May

94

86

79

74

70

65

63

*61

56

54

66

126

130

108

87

71

62

57

52

50

50

50

45

1T52

178

161

130

148

163

148

124

2,810

90.6

1.65

1.90

June

104

83

72

64

59

52

46

39

34

30

27

*25

24

37

105

140

TK

130

135

111

80

62

52

48

45

40

35

33

32

44

-

1,928

64.3

1.17

1.30

July

50

57

47

37

36

51

46

37

30

26

23

36

115

104

74

53

*43

39

59

155

155

105

77

58

45

35

29

27

28

27

24

1,682

54.5

0.987

1.14

Aug.

24

27

22

27

25

22

20

20

21

20

19 20"

54

*27

32

80

207

216

T6T

118

98

90

75

57

48

40

55

54

50

26

25

1,702

54.9

0.998

1.15

Sept.

20

28

69

S5

54

45

58

55

26

23

20

»19

18

17

16

15

14

12

12

11

10

9.7

9.7

10

10

12

11

11

10

9.4

-

658.8

22.0

0.400

0.45

Calendar year L950: Max 454 Min Z.I Mean 73.9 Cfsm 1.34 In. 18.22

Water year 1950-51: Max 450 Min 2.7 Mean 96.6 Cfsm 1.76 In. 23.82

* Discharge measurement made on this day. 

Mote. Stage-discharge relation affected by ice De 

17 2"2~, 25, Jan. 26 to Feb. 11, Feb. 15-17, 25, Mar.

 . 15, 18-25, 25-30, Jan. 1, 2, 5, 8-11, 15, 14, 

10, 11.
220 CONNECTICUT RIVER BASIN

Ware River at Coldbrook, Mass.

Location (revised).--Lat 42°23'30", long. 72"03'40", on right bank above diversion dam 

at ware Kiver intake works at Coldbrook, Worcester County, 2 miles east of South 

Barre, and 2.7 miles downstream from Burnshirt River.

Drainage area. 96.8 sq mi.

Records available.--January 1928 to September 1951.

Gage. Venturi meters and water-stage recorder. Datum of gage is 5.65 ft below mean sea 

revel, datum of 1929. Prior to Feb. 1, 1936, water-stage recorder at site 0.2 mile 

downstream at datum 631.91 ft above mean sea level, unadjusted.

Average discharge.--S3 years, 161 cfs.

Extremes. Maximum daily discharge during year, 890 cfs Apr. 4; minimum daily, 7.5 cfs

1928-51: Maximum discharge, 14,000 cfs Sept. 21, 1938 (gage height, 664.28 ft), by 

coinputation of flow over dam; minimum daily, 5 cfs Aug. 2, 3, 1931.

Remarks.--Records good. Figures of discharge include diversion as needed for Boston

 metropolitan district during period Oct. 15 to June 14 of each year; diversion began 

in March 1931.

Cooperation. Computations of daily discharge made in cooperation with Water Division,

 Metropolitan District Commission, which collected gage-height and Venturi-meter records .

Revisions (water years). W 781: Drainage area. W 1031: 1944.

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

£1

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

11

11

8

7.5,

77^

7.5

7.5

7.5

7.5

13

22

31

39

34

28

22

19

18

20

23

24

23

33

31

51

28

17

16

16

15

14

612.0

19.7

0.204

O.Z4

Nov.

14

TJ1

18

20

45

51

45

35

30

27

24

23

22

16

17

18

19

19

19

14

38

100

70

60

147

375

754 5T9"

377

332

-

3,292

110

1.14

1.26

Dec.

252

196

166

209

394

294

227

253

307

317

294

259

211

183

138

142

142

137

122

104

97

93

97

103

96

80

74

71

5?

109

129

5,380

174

1.80

2.07

Jan.

126

113

120

185

258

218

176

154

141

140

137

126

116

107 155"

Z37

220

199

181

185

201

175

164

270

576

320

249

206

188

152

132

5,731

185

1.91

2.20

Feb.

162

50T

336

279

228

188

474

841 755"

560

399

278

318

329

287

246

247

554

601

485

412

701

666

482

452

348

331

256

_

_

-

11,619

415

4.29

4.46

Mar.

251

257

225

226

256

269

282

295

277

151

236

170

210

334

521

514

365

310

235

525

659

487

413

466

479

408

338

302

309

395

749

10,914

352

3.64

4.19

Apr.

767

638

782

890

T2TT

779

482

421

309

347

339

327

317

298

278

262

251

232

218

207

190

183

325

348

312

281

249

215

197

181

-

11,345

378

3.90

4.36

May

164

150

139

139

132

119

116

111

105

103

123

216

208

173

147

139

125

106

98

91

94

95

86

2(35"

299

246

206

250

251

221

179

4,836

156

1.61

1.86

June

151

141

129

109

100

89

78

71

63

57

51

48

47

HT

171

233

2TT

183

196

158

123

100

89

85

84

75

63

59

62

78

-

3,188

106

1.10

1.22

July

89

93

75

61

67

87

76

60

50

43

39

10T

199

15?

108

81

70

66

134

198

181

139

110

84

65

54

47

45

49

49

43

2,715

87.6

0.905

1.04

Aug.

45

50

 46

52

47

40

37

38

39

37

3433"

54

50

70

198

354 305"

217

178

154

142

119

90

78

69

60

58

50

45

40

2,832

91.4

0.944

1.09

Sept.

39

32

31

28

26

25

24

2T

45

41

123

53

37

34

32

78

127 155"

86

69

65

55

24

24

25

28

28

25

24

24

-

1,385

46.2

0.477

0.53

Calendar year 1950: Max 821 Mln 7.5 Mean 132 Cfsm 1.36 In. 18.50

Water year 1950-51: Max 890 Mln 7.5 Mean 175 Cfsm 1.81 In. 24.52
CONNECTICUT RIVER BASIIJ 221

Location. La t 42°14'07", long. 72°16'45", on right bank half a mile upstream from Gibbs

 Crossing, Hampshire County, 1.8 miles upstream from Beaver Brook, and 2^ miles southwest of Ware.

Drainage area.--199 sq mi.

Records available.--August 1912 to September 1351.

Gage.--Water-stage recorder. Datum of gage is 379.79 ft above mean sea level, datum of

 1929. Prior to Mar. 1, 1930, at site half a mile downstream at different datum.

Average discharge.--39 years, 316 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 1,750 cfs Feb. 8 (gage height, 4.69 ft); minimum, 20 cfs Oct. 21, 22; minimum daily, 22 cfs Oct. 21.

1912-51: Maximum discharge, 22,700 cfs Sept. 21, 1938 (gage height, 18.2 ft, from 

floodmarks), by slope-area determination; minimum, 5.0 cfs Oct. 26, 1914; minimum daily, 

6.0 cfs Oct. 4, 1914.

Remarks.--Records good except those for periods of ice effect, which are fair. Plow regu-

 laTed by mills above station. During period Oct. 15 to June 14 of each year, water is 

diverted as needed from 97 sq mi in Ware River basin for supply of Boston metropolitan 

district; diversion began in March 1931.

Revisions (water years].--W 661: Drainage area. W 1031: 1944.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

28

37

37

37

38

34

27

26

34

46

BZ

53

60

33

34

77

48

47

43

44

*2253"

to

58

41

41

90

3T

23

41

44

1,339

43.2

O

Nov.

44

44

52

34

46

116

1O8

96

 79

65

32

30

62

44

43

46

67

38

2948"

1E3

1E2

91

182

102

I,0fa0

908

423

395

505

-

5,104

170

677.5

Dec.

428

286

£55

365

*8£5

607

439

305

350

370

394

345

318

268

267

194

200

304

244

190

150

150

113

125

165

2/5

140

135

165

182

251

8,935

288

807 .5

Jan.

245

295

222

373

478

393

355

340

*275

255

245

240

150

Tbu

366

523

466

417

385

318

406

395

305

416

HI

595

415

36O

379

295

225

11,028

356

0

Feb.

320

897

465

340

370

*310

454

1 , 430

615

385

360

389

530

636

555

455

365

1,040

1,190

932

757

1,270

1,300

615

1,080

468

400

386

_

_

-

ia,3i4

654

2,841.5

Mar.

423

433

3/3

395

504

523

523

533

495

303

316

339

*33b

398

7 Lib

792

448

345

410

662

1,080

675

529

492

583

537

410

377

363

452

1,080

15,897

513

2,670.8

Apr.

933

671

976

1,200

799

637

472

472

505

*589

613

583

585

535

517

532

486

454

393

405

315 3~2T

5b9

685

607

535

483

385

375

398

-

17 ,040

568

2,797.3

May

332

3UO

276

266

199

231

296

*222

207

188

277

250

439

397

322

276

251

214

125

78

276

212

155

285

495

438

390

518

4/1

370

399

3,155

295

0

Jun,

322

133

157

325

224

180

152

135

90

32

164

114

87

134

289

247

350

286" 363

267

221

194

114

46

231

126

114

113

108

*113

-

5,491

183

'-'

July

70

238

193

44

203

173

140

51

208

97

*72

94

266

30U

215

263

130

118

112

325

237

231

231

195

143

87

109

70

112" 33

124

4,884

158

0

Aug.

69

75

103

76

33

91

89

86

75

79

83

45

115

*111

71

187

954

767

517

399

34O

314

243

197

88

84

177

125

122

108

126

5,949

192

0

Sept.

67

48

194

287 2~S"4

192

137

83

55

175

Ufa

114

129

85

78

34

92

*88

80

77

77

76

31

68

58

38

38

82

74

32

-

2,929

97.6

0

Adjusted for diversion

Mean 

In.

43.2 

0.217 

0.25

205 

1.03 

1.15

Calendar year 1950 : 

Water year 1950-51:

329 

1.90

356 

1.79 

2.06

811 

4.08 

4.24

646 

3.25 

3.74

712 

3.58 

3.99

295 

1.48 

1.71

Observed

Max 1,060 Mln 22 Mean 218 

Max 1,430 Mln 22 Mean 291

183 

0 . 920

1.03

158 

0.794 

0.91

192 

0.965 

1.11

97.6 

O.490 

0.55

Adjusted

Mean 262 Cfsm 1.32 In. 17.84 

Mean 332 Cfsm 1.67 In. 22.64

Fealc discharge (base, 1.5OO cf s) .--Nov. 26 (8:30 to 10:30 p.m.) 1,580 cfs (4.50 ft); Feb. 8 (9 to 

9:30 a.m.) 1,750 cfs (4.69 ft); Feb. 18 (8 to 10 p.m.) 1,390 cfs (4.29 ft) Feb. 22 (6:30 to 8:3O p.m.) 

1,510 cfs (4.42 ft); Mar. 31 (5:30 to 6 p.m.) 1,40O cfs (4.30 ft); Apr. 3 (10 to 11:30 p.m.) 1,440.cfs 

(4.35 ft).

* Discharge measurement made on this day.

t Diversion, in millions of gallons, from 97 sq mi in Ware River basin for supply of Boston metropolitan district, furnished by Metropolitan District Commission.

Note.--Stage-discharge relation affected by ice Dec. 20-22, 24-29, Jan. 1, 2, 7-14, 22, 23, 27, 28, 

JanTTO to Feb. 1, Feb. 3-6, 9-11, 15-17.
222 CONNECTICUT RIVER BASIN

Hop Brook near New Salem, Mass.

Location, Lat 42°28'42", long. 72°20'05", on right bank 1.5 miles upstream from mouth 

ana 1-2 miles south of New Salem, Franklin County.

Drainage area.--3.39 sq mi.

Records available.--November 1947 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 725 ft (from topographic map).

Extremes.--Maximum discharge during year, 152 cfs Mar. 31 (gage height, 2.71 ft), from 

rat ing curve extended above 42 efs by logarithmic plotting; maximum gage height, 2.94 

ft Feb. 7 (backwater from ice); minimum discharge, 0.16 cfs Oct. 4, b.

1947-51: Maximum discharge, that of Mar. 31, 1951; maximum gage height, that of 

Feb. 7, 1951; minimum discharge, 0.01 cfs Aug. 10-12, 21-29, 1949.

Remarks.--Records good except those for periods of ice effect, 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)

1 to Feb. 7 Feb. 7 to Sept. 30

0.14

.34

.67

1.15

2.6

4.8

1.4 

1.6

2.0 

2.2

0.6 0.35

.7 .70

.8 1.25

1.0 2.8

1.2 4.9

1.3

1.4 

1.7 

2.0 

2.3

In cubic feet per second, 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.

Oct.

0.21

.17

.17

.17

.16

.19

.21

.21

.21

5.0

2.5

4.6

2.5

1.10

.80

*.67

.60

.60

.60

.56

.49

.46

.60

.75

.67

.63

.53

.49

.56

.60

.53

27.54

0.888

0.262

0.30

Nov.

0.49

.46

17TB"

3.1

10.9

2.8

1.8

1.5

1.35

1.15

.99

.88

.88

.80

.80

.84

1.5

1.10

.88

*2.0

17.2

4.2

2.8

2.5

7.5

52

13.0

9.0

7.6

6.4

-

157.58

5.25

1.55

1.73

Dee.

5.5

5.0

5.0

21

23_

10.5

8.8

21

17.4

11.7

14.9

11.1

9.0

8.0

7.3

7.3

7.1

6.2

5.5

4.9

4.8

5.0

5.0

4.8

4.0

3.6

3.2

2.2 ¥72~

7.8

6.6

261.4

8.43

2.49

2.87

Jan.

5.3

4.7

5.5

15.0

9.3

6.8

5.5

5.2

5.0

4.7

4.5

4.2

4.0

3.7

1370-

8.8

6.8

6.2

6.6

8.4

10.8

6.5

6.0

22

13~.0

9.3

7.8

6.2

5.8

4.8

4.6

230.0

7.42

2.19

2.52

Feb.

9.0

19.0

11.5

8.2

6.8

5.6 21 

33

21

16.0

11.0

9.0

13.0

14.5

10.0

8.6

8.0

43

I9-.5

15.5

16.8

*41

21

15.0

13.7

14.4

15.0

12.2

_

_

-

452.3

16.2

4.78

4.96

Mar.

10.0

9.5

8.5

10.3

12.4

10.6

13.2

12.0

8.6

7.6

7.2 T78"

7.8

13.0

12.6

9.5

8.9

8.0

*7.6

29

15.5

12.6

10.8

22

15.5

11.8

10.3

9.5

12.1

17.5

7£

421.7

13.6

4.01

4.63

Apr.

26

21

66

52

23

19.6

17.5

15.5

14.0

13.5

17.4

13.6

15.6

12.2

10.4

10.4

10.8

8.9

8.6

7.8

6.9

6.6

17.8

9.5

8.9

*8.9

7.5

6.6

6.4

5.9

-

448.8

15.0

4.42

4. 92

Hay

5.4

5.1

4.8

4.7

4.4

4.3

4.2

4.0

3.6

3.5

9.6

12.5

6.1

4.8

4.3

3.8

*3.5

3.3

3.0

3.0

2.9

2.6 275-

13.5

5.4

3.6

7.3

8.2

4.6

3.6

3.0

155.2

5.01

1.48

1.70

June

2.4

2.3

2.6

2.4

2.05

1 .6

1.4

1.20

1.09

.98

*.92

.89

.81 1373" 

15.4

6.9

4.3

4.7

3.7

2.5

2.8

3.3

3.3

3.4

8.6

3.4

2.9

2.6

5.8

5.0

-

112.54

3.75

1.11

1.23

July

4.3

3.2

2.15

1.7

2.4

3.9

2.05

1.4

1.15

.98

.92

1478- -973

3.3

2.2

1.6

2.9

4.1

12.0

7.1

3 .3

2.8

2.4

1.8

1.45

1.17

.92

2.15

1.95

1.4

1.10

101.89

3.29

0.971

1.12

Aug.

4.6

2.5

1.55

1.7

1.04

.76

.63

3.7

2.3

1.6

1.20

.92

.97

.60 675-

10.2

12.4

3.2

2.6

3.3

2.9

1.9

1.75

2.25

2.3

1.55

1.4

1.20

.98

.81

85.51

2.76

0.814

0.94

Sept.

0.87

3.7

5.0

2.25

1.4

1.4

*1.6

.98

.70

.60

.66

.70

.60

.60

6.1

2.6

1.4

1.04

.81

.66

.66

.56

7W

.66

2.0

1.95

1.09

1 .5

.81

.76

44.56

1.49

0.440

0.49

Calendar year 1950: Max 52 Mln O.03 Mean 5.72 Cfsm 1.69 In. 22.89

Water year 1950-51: Max 70 Mln 0.16 Mean 6.85 Cfsm 2.02 In. 27.41

Peak discharge (base, 72 cfs), Nov

(2.43 ft); Mar. Si (3:30 to 4 a.m.) 1

. 26 (2:30 a.m.) 150 cfs (2.70 ft); Dec. 4 (9:30 p.m.) 92 cfs 

52 cfs (2.71 ft); Apr. 3 (1 to 1:30 p.m.) 112 cfs (2.51 ft).

Discharge measurement made on this day. 

Note Stage-discharge relation affected by Ice Dec. 19 to Jan. 4, Jan. 6-17, Jan. 21 to Feb. 

Feb~n~5-17, 24, 25, Mar. 3,, 6, 9-11, 23, 27.
CONNECTICUT RIVER BASIN 

East Branch Swift River near Hardwick, Mass.

223

Location. Lat 42°23'36", long. 72°14'21", on left bank 100 ft above spillway of regulating dam and 4.6 miles northwest of Hardwick, Worcester County.

Drainage area. --43. 7 sq mi.

Records available. January 1937 to September 1951.

Gage. Water-stage recorder and concrete spillway. Datum of gage is 504.70 ft above 

mean sea level, datum of 1929.

Average discharge .--14 years, 67.9 cfs.

Extremes . Maximum discharge during year, 554 cfs Apr. 4 (gage height, 20.525 ft); mini-

 mum, 2.3 cfs Oct. 7.

1937-51: Maximum discharge, 6,780 cfs Sept. 21, 1938, average of slope-area and 

contracted-opening determinations; maximum gage height, 22.49 ft June 25, 1944; no 

flow Aug. 7, 14-21, 1939 (result of regulation by construction operations), Aug. 

26-28, 1949.

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

rrom Quabbin Reservoir, which are fair.

Rating table ater year 195O-51 , except periods of backwater from Quabbin Reservoir (gage 

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

19.2

19.25

19.3

19.35

19.4

1.6 19.5

19.6

20.0

20.5

36

239

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

Cf sm

In.

Oct.

3.0

2.8

3.0

3.2

3.0

2.8

2.5

375

3.2

8.7

10

14

17

T6

16

14

12

12

11

12

9.8

9.8

10

9.8

8.4

8.0

6.8

6.4

6.8

7.2

6.8

259.2

8.36

0.191

0.22

Nov.

6.4

6.0

T75

9.3

31

44

35

28

24

21

17

15

12

11

9.8

9.8

11

10

8.8

8.6

41

54

44

34

44

364

3T9

200

138

107

-

1,710.3

57.0

1.30

1.46

Dec.

84 67

57

74

298

255

170

132

153

148

126

109

94

82

75

67

61

56

50

40

34

31

33

37

35

31

28

27

35

54

70

2,613

84.3

1.93

2.22

Jan.

66

54

60

94

130

110

90

78

64

60

58

56

53

50

9ti

120

110

96

86

82

97

107

86

103

175

155

113

90

82

67

58

2,740

88.4

2.02

2.33

Feb.

76

19T)

150

120

105

92

119

450

3SO

250

160

110

125

130

115

103

96

260

280

240

190

330

320

230

210

160

150

120

-

_

-

5,231

187

4.28

4.45

Mar.

115

120

105

105

120

125

130

135

130

BB

100

88

90

97

180

170

150

130

110

170

190

200

155

180

214

181

142

123

119

144

412

4,516

146

3.34

3.84

Apr.

448

293

356

486

35§

222

167

141

126

114

124

158

136

126

111

95

94

90

82

76

70

68

130

140

120

100

88

74

66

60

4,690

156

3.57

3.99

May

54

49

45

44

42

38

37

34

32

32

40

94

88

70

54

50

45

38

32

31

29

28

58

64

106

84

68

88

88

73

55

1,660

53.5

1.22

1.11

June

42

35

29

28

27

24

22

17

16

14

12

15

12

24

66

 ST 89

62

45

34

27

24

22

21

23

21

20

20

21

29

919

30.6

0.700

0.78

July

34

33

29

23

22

20

20

18

15

12

11

T5

64

72

5S

33

32

27

34

63

56

39

33

26

20

15

12

11

12

13

12

880

28.4

0.650

0.75

Aug.

12

12

11

15

15

13

11

12

12

12

12

14

19

15

18

42

82

97

73

54

48

44

35

30

26

23

20

18

16

15

12

838

27.0

0.618

0.71

Sept.

12

17

32

35

30

24

22

18

15

13

12

11

11

9.3

10

11

9.8

8.8

7.6

7.2

7.2

6.0

77?

7.2

8.0

9.3

7.6

8.4

7.6

7.2

391.4

13.0

0.297

0.33

Calendar year 1950: Max 404 Mln 1.2 Mean 61.7 Cfsrn 1.41 In. 19.16

Water year 1950-51: Max 486 Mln 2.5 Mean 72.5 Cfsm 1.66 In. 22.49

Peak discharge (base, 350 cfs). Nov. 26 (6:30 to 8:30 p.m.) 491 cfs (20.43 ft); Dec. 5 (2 p.m.) 

350 cfs ( 20.195 ft); Feb. 8 (8 to 10:30 a.m.) 491 cfs (20.43 ft); Feb. 22 (time unknown) 362 cfs 

(20.22 ft); Mar. 31 (9 to 12 p.m.) 547 cfs (20.51 ft); Apr. 4 (3:30 to 5:30 a.m.) 554 cfs (20.525

Note. No gage-height record Dec. 21 to Jan. 7, Jan. 9-17, Jan. 31 to Feb. 4, Feb. 8-15, Feb. 17 

to Mar. 11, Mar. 15-24, Apr. 18 tj May 6, May 10-16; discharge estimated on basis of weather records, 

recorded range in stage, and records for Ware River at Coldbrook and Kettle Brook at Worcester. 

Backwater from Quabbin Reservoir Apr. 4 to May 18, May 24 to June 12, June 15-23.
CONNECTICUT RIVER BASIN 

Swift River at West Ware, Mas

Location. Lat 42°16'U4", long. 72°19 I 59", on left bank at West Ware, Hampshire County,

 I A ^7-l~~ Trades H/-. downstream T .rr-,of -Kionm from f-Ki^m yuabbin I I n o V,"h T ^ Reservoir T3 C3 a omm"i r> and orirl 3j ^i- miles m 1 1 P P, east, ftflst. of f)f Belcherto Bft 1 C h fir t OWT1.

sq mi, includes 1.6 sq mi drained by Beaver Brook, flow of which is

diverted from Ware River basin. Prior to January 1937, 186 sq mi,

Records available.--July 1910 to September 1951.

fiage.--Water-stage recorder. Datum of gage is 365.ie ft above mean sea level, datum of

 T929. Prior to Aug. 25, 1912, chain gage at site 400 ft upstream at same datum.

Average discharge.--39 years (1912-51), 301 cfs (adjusted for change in contents in

 Quabbin Reservoir and for diversion to and from Quabbin Reservoir).

Extremes. --Maximum discharge daring year, 726 cfs Apr. 12 (gage height, 5.22 ft); mlniRemarks. --Records excellent except those for periods of ice effect or shifting control, 

 wnTch are good. Flow completely regulated since August 1939 by ^uabbin Reservoir 

(see p. 255) .

except periods 

ge, in cubic fe

Dic-harge, in ?ubic feet per second, water year Cctnber 1950 to September 1951

Day

1

2

3

4

-

7

9

10

11

13

14

15

ie

17

16

19

21

23

24

25

26

27

29

30

31

Total

Mean

(t)

Oct.

37

99

91

92

91

91

49

101

93

93

41

"T9 1041

38

102

92

92

31

93

5C

39

103

92

*93

93

91

^r

4C

105

94

2,42'-

78.3

-43.9

Nov.

91

32

92 

51

43

103

94

93

92

94

*4C

4C

100

91

91

91

91

44

39

icT

34

91

41

1C1

53

47

1C 3

92

9:

92

-

2,575

79.2

+233

Dec.

93

50

40 

103

95

92

91

92

30

41

105

92

92

qO

31

5f

4C

104

92

91

qo

91

50

39

39

101

91

93

50

39

2,369

76.4

+313

Jan.

37

100

32

92

49

4C

101

89

91

31

94

48

38

107

34

92

92

92

52

40

103

92

59

94

93

51

39

103

b93

2,485

80 .2

+321

Feb.

b92

b92

b52

101

b93

93

b92

b92

b5n

41

105

97

95

93

b93

5C<=(-

10 1

92

92

41

105

b51

41

103

95

92

.

_

-

2.234

79.8

+685

Mar.

87

30

50 

40

103

93

92

93

92

b52

40

104

*92

94

94

92

53

41

1C' 3

100

94

93

94

55

42

Iu4

94

96

q;,

67

2,532

81.7

+652

Apr.

46

107

129

33d

501

502

535

650

*629

633

634

622

535

494

557

+552

523

Ma;,

370

358

329

229

193

266

*238

213

212

229

176

112

137

105

89

92

91

494 52

502 1 40_

408

342

523

509

494

492

456

347

332

415

-

13,586

453

+233

102

88

89

132

121

68

68

161

160

82

158

5,06,2

163

+ 125

June

142

85

64

131

134

118

114

96

55

45

101

*93

92

lol

129

96

87

151

132

122

111

123

56

41

104

92

93

92

94

54

-

2,949

98.3

+87 .7

Julj

42

103

92

33

103

52

41

101

91

91

93

91

52

40

103

39

9L

92

91

50

40

101

91

91

93

91

52

40

104

66

2,401

77.5

+ 70.7

Aug.

93

93

51 

40

103

91

93

93

94

51

40

104

90

90

97

36

53

41

104

93

93

93

97

77

38.

66

93

91

91

90

2,532

81.7

+87.0

Sept.

50

42

39

101 

90

93

91

52

39

105

94

90

90

90

51

40

101

90

91

91

91

50

40

101

90

90

9O

91

50

40

-

2,261

75.4

-111

Adjusted lor diversion and change in reseivoir on en

Mean

Cf sm

In.

28.5

0.152

0.17

312

1.66

1.85

Calendar year 1950 :

Water year 1E50-51 :

590

2 .07

2.39

401

2.13

2 . 4t

765

4.07

4.24

734

3.9C

4.50

1-86

3.6,5

4.07

288

1.53

1.77

186

0.983

1 . 10

148

0.787

'"'.91

169

0.899

1.03

-35.6

-0.189

-0.21

Observed Adjusted

lax no Miu 33 Mean 78.2 Mean 285 Cfsm 1.5: In. 20.60

lax 650 Min 33 Mean us Mean 336 Cfsir 1.79 In. 24.28

* Discharge measurement maJe on this day.

t Change in contents in Quabbin Reservoir adjusted for diversion from Ware River), diversion to

Wachusett Reservoir, and diversion to Chicopee valley Aqueduct, equivalent in cubic feet per second.

b Stage-discharge relation affected by ice.

Ncte. --Shifting-control method used July 16, 23-27, 30, Aug. 1-3, 6-10, 13-17, 20-25, 27-31, Sept.

4-7, 10-14, 17-21, 24-28. Negative figures of adjusted discharge and runcff indicate that evaporation and seepage from reservoir exceeded inflow.
CONNECTICUT RIVER BASIN 

Quaboag River at West Brimfield, Mass.

Location (revised). Lat 42°10'3l", long. 72°15'46", on left bank 15 ft upstream from 

site olrormer Highway bridge at West Brimfield, Hampden County, 0.4 mile upstream 

from Blodgett Mill Brook, and 3i miles northeast of Palmer.

Drainage area.--151 sq mi.

Records available. August 1309 to September 1951.

Gage.--Water-stage recorder. Concrete control since June 15, 1937. Datum of gage is 

 377.36 ft above mean sea level, datum of 1929. Prior to Aug. 19, 1912, staff gage on 

right bank at upstream side of former highway bridge and Aug. 19, 1912, to May 30, 

1923, water-stage recorder at downstream end of bridge pier at same datum.

Average discharge.--39 years (1912-51), 235 efs.

Extremes.--Maximum discharge during year, 1,180 cfs Apr. 3 (gage height, 4.88 ft); minimum daily, 19 cfs Oct. 7.

1909-51: Maximum discharge, 8,470 cfs Sept. 21, 1938 (gage height, 11.8 ft, from 

floodmarks), by slope-area determination; minimum daily, 7.8 cfs Oct. 11, 19, 1930.

Remarks.--Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Slight diurnal fluctuation at low flow by mill above station; 

regulation much greater prior to 1938.

Revisions (water years). W 451: 1916. W 711: Drainage area.

Rating table, water year 1950-51, except periods of ice effect (gage 

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

2.4 

2.6 

2.9 

3.2

Discharge, in cubic feet pe

585

1,280

5cond, 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

£1

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

a28

24

22

22

21

20

19

21T

20

32

52

46

58

4T

45

45

45

43

43

40

34

38

40

37

38

34

31

35

38

35

32

1,082

34.9

0.231

0.27

Nov.

32

32

31

3T

64

55

52

48

48

45

41

41

38

37

35

37

38

34

31

*37

96

84

93

96

144

485 4"50~

466

477

450

-

3,651

122

0 . 808

0.90

Dec.

414

362

336

390

550

472

445

450

450

435

445

424

393

357

331

316

293

265

200

250

230

230

215

200

140

120

T5TJ

150

170

200

240

9,603

310

2.05

2.37

Jan.

240

230

220

280

270

270

257

240

240

230

220

210

185 S25~

285

321

260

336

336

*341

325

250

315

405

477

456

430

405

372

320

250

9,201

297

1.97

2.27

Feb.

370 549-

480

472

445

400

510

760

650

875

775

716

690

645

585

530

*482

711

710

678

645

840

775

635

555

678

639

585

_

_

-

17,385

621

4.11

4.28

Mar.

552

498

466

440

435

435

424

414

388

336

3Z6

33T

326

376

424

424

424

419

403

522

552

552

563

*621

597

574

558

530

519

558

840

14,832

478

3.17

3.65

Apr.

788

782

1,010

1,060

1,020

966

903

840

768

710

652

603

585

536

493

461

435

403

382

352

*331

321

387

398

382

352

352

326

302

274

-

17,174

572

3.79

4.23

Hay

257

231

219

212

196

185

167

156

150

144

176

252

235

227

215

204

192

178

*160

150

144

137

125

237

288

274

288

341

S2T

298

274

6,633

214

1.42

1.63

June

252

23T

212

204

212

196

170

156

144

131

122

106

1O1

121

181

200

192

192

192

188

174

163

150

144

134

120

*112

106

98

1DT

-

4,805

160

1.06

1.18

July

106 156"

96

89

98

101

96

93

86

80

77

82

84

80

75

75

75

75

86

96

91

91

93

89

86

84

77

77

75

73

69

2,661

85.8

0.568

0.66

Aug.

67

65

63

63

59

55

55

53

53

52

53

57

71

69

88

120

204

208 T55"

185

196

188

174

*160

150

140

128

117

112

101

86

3,380

109

0.722

0.83

Sept.

89

125

140 T25-

120

114

109

103

98

91

89

84

75

75

75

71

69

65

63

59

55

52

53

46

50

50

46

45

3840-

-

2,314

77.1

0.511

0.57

Calendar year 1950: Max 730 Win 19 Mean 185 Cfsm 1.23 In. 16.60

Water year 1950-51: Max 1,060 Hln 19 Mean 254 Cfsm 1.68 In. 22.84

Peak discharge (base, 640 cfs). Feb. 22 (6 to 8 a.m.) 910 cfs (4.50 ft); Apr. 3 (2 to 3 p.m.) 

1,180 cfs 14.88 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stage, 

and records for East Branch Swift River near Hardwick and Ware River near Barre.

Note.--Stage discharge relation affected by Ice Dec. 19-23, Dec. 25 to Jan. 4, Jan. 8-15, 17, 

21-23, 27, 28, Jan. 30 to Feb. 1, Feb. 3, 6-11, 16, 24, 25.
^b CONNECTICUT RIVER BASIN

Chicopee River at Indian Orchard, Mass.

Location.--Lat 42°09'38", long. 72°30'52", on left bank 1,000 ft downstream from West

 Street Bridge at Indian Orchard, Hampden County, and 1.1 miles upstream from Fuller

Brook.

Drainage area.--688 sq mi. 

Records available.--August 1928 to September 1951. Published as at Bircham Bend prior

to November 1938. 

Gage.--Water-stage recorder. Altitude of gage is 125 ft (from topographic map). Prior

 to Nov. 1, 1938, at site if miles downstream at different datum.

Average discharge.--33 years, 1,056 cfs (adjusted to present drainage area and for storage

and diversions). 

Extremes.--Maximum discharge during year, 4,340 cfs Apr. 4 (gage height, 8.91 ft); rnini-

 mum daily, 95 cfs Oct. 8.

1928-51: Maximum discharge, 45,200 cfs Sept. 21, 1938, by computation of flow over 

dam; minimum daily, 16 cfs several times in 1929-31. 

Remarks.--Records excellent except those for periods of ice effect or no gage-height rec-

 o?37 which are good. Diversion since 1941 from 186 sq mi in Swift River basin and at 

times during period Oct. 15 to June 14 each year since 1931 from 97 sq mi in Ware River 

basin for Boston metropolitan district and, since 1950, for city of Chicopee. Diversion from Ludlow Reservoir for use in Springfield and Chicopee. Flow regulated by 

powerplants above station, and by Quabbin Reservoir on Swift River since 1939 (see 

p.255) and smaller reservoirs.

Revisions.--W 711: Drainage area.

tat in

3.8

4.0

4.5 

5.0 

5.5

height, it

Oct. 1 to

91

129

266 

475 

760

i feet, and discharge,

Feb. 7

6.0 1,130

7.0 1,990

8.0 3,100 

8.5 3,760

in cubic feet per second)

Feb. 8 to Sept . 30

5.0 475 7.0 1.

6.0 1,070 8.0 3,

Note. --Same as precedli 

table below 5.0 ft and al 

a o ft .

Day

1

2

3

4

5

e

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

2b

27

28

29

30

31

Total

Mean

(t)

Oct.

148

104

*190

170

208

196

194

95

176

190

218

202

386

197

166

196

328

285

215

244

219

171

268

245

291

157

226

132

166

204

210

6,397

206

-131

Nov.

278

145

227

206

150

216

444

352

316

254

242

150

138

310

232

365

210

175

209

155

364

602

339

438

450

1, 600

2,510

1,430

1,280

1,210

-

14,977

499

+ 746

Dec.

1,220

892

733

1,020

1.920

,790

,380

,210

,150

,050

*1,310

1,180

1,050

976

921

708

600

966

822

642

472

b580

b370

b400

b 43n

b540

b540

b500

b480

b470

b660

26,982

870

+984

Jan.

b680

849

824

920

1,160

926

802

1,090

818

708

780

781

564

434

948

1,400

1,240

*1,120

1,080

862

986

1,220

999

1,030

1,810

1,630

1,270

1,030

1,250

1,050

837

31,098

1,003

+884

Feb.

674

1, 880

1,670

1,170

1,330

1, 160

1,300

S.570

2,340

1,770

1,580

1,650

1,630

1,860

1,670

*1,430

1,180

2,160

2 , 930

2,390

2,040

2,880

3,220

2,300

1,500

1 , 600

1,550

1,500

_

_

-

51,734

1,848

+2,047

Mar.

1,450

1,450

1,300

1,150

1,400

1,550

1,500

1,450

1,350

1,200

900

1,200

1,150

1,150

1,600

1,750

1,550

1,150

1,300

1,600

2,200

*2,080

1,680

1,670

1,780

1,700

1,500

1,400

1,300

1,500

2,700

46,660

1,505

+2,103

Apr.

2,500

2,200

2,900

5,700

3,300

3,100

2,800

2,700

2 , 6OO

2,450

2,400

2,340

2,270

2,150

1,890

1,850

*1,910

1,790

1,690

1,650

1,550

1,210

1,840

2,260

2,020

1,860

1,690

1,570

1,210

1,480

-

64,880

2,163

+971

May

1,220

1,170

1,150

1,100

1,000

680

1,050

900

747

811

750

1,290

992

1,180

1,000

780

*772

730

624

425

640

699

656

756

1,330

1,240

940

1,300

1,320

1,040

1,040

29,330

946

+339

June

962

833

602

800

925

721

700

674

580

460

370

440

578

457

705

95O

822

*1.070

882

858

806

729

696

626

558

692

670

350

591

500

-

20,587

686

+232

July

474

442

652

592

376

594

574

474

345

564

*428

386

572

623

508

566

625

595

352

584

631

586

614

624

564

571

512

298

338

510

422

15,996

516

+194

Aug.

294

349

342

354

308

376

376

256

343

346

334

332

466

505

542

604

1,360

1,750

1, 200

942

1,080

*961

782

684

606

530

350

574

466

566

438

18,416

594

+247

Sept.

371

358

569

806

732

544

577

344

325

419

522

451

341

470

318

244

358

*350

387

270

*300

210

233

284

315

252

330

314

198

209

-

11,401

380

-323

Adjusted for diversion and change in reservoir contents

Mean

Cfsm

157 

0.228 

0.26

787 

1.14 

1.28

Calendar year 1950 : 

Water year 1950-51 ' 

1,238 

1.80 

2.07

1,333 

1.94 

2.23

2,694 

3.92 

4.08

2,290 

3.33 

3.84

2,537 

3.69 

4.11

1,073 

1.56 

1.80

observed

Max 2,510 Mln 95 Mean 671 

Max 3,700 Min 95 Mean 927

776 

1.13 

1.26

588 

0.855 

0.99

686 

0.997 

1.15

255 

0.371 

0.41

Adjusted

Mean 929 Cfsm 1.35 In. 18.32 

Mean 1,190 Cfsir 1.73 In. 23.48

* Discharge measurement made on this day.

t Diversion from Ware River, change In contents in Quabbin Reservoir (adjusted for diversion from 

Ware River), diversion to Wachusett Reservoir and city of Chicopee, change in contents in Ludlow 

Reservoir, and diversion from Ludlow Reservoir, in millions of cubic feet.

b Stage-discharge relation affected by ice.

Note.--No gage-height record Feb. 24 to Mar. 21, Mar. 26 to Apr. 1O, Apr. 16, 20, 21, May 2-8, 15, 

16, June 9-12, £7, 28; discharge estimate

weather records, powerplant records, and re

on basis of recorded range in stage when available, 

for other stations in Chicopee River basin
CONNECTICUT RIVER BASIN

Mill River at Springfield, Mass.

Location.--Lat 42°05'39", long. 72°34'03", on right bank 75 ft upstream from Hancock 

street Bridge at Springfield, Hampden County, 0.25 mile downstream from Watershops 

Pond, and 1.0 mile upstream from mouth.

Drainage area.--33.9 sq mi.

Records available.--December 1938 to September 1951 (discontinued).

Gage. Water-stage recorder and concrete control. Datum of gage is 118.92 ft above mean 

sea level, datum of 1929.

Average discharge.--12 years (1939-51), 41.6 cfs (adjusted for storage). 

Extremes.--Maximum daily discharge during year, 176 cfs Apr. 4; minimum daily, 2.4 cfs 

1938-51: Maximum daily discharge, 306 efs Apr. 1, 1940; no flow May 30, 1941.

Remarks.--Records excellent except those below 15 cfs and those for days of no gage-height 

record, which are good. Flow regulated by powerplant and by Watershops Pond 

(see p. 255).

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.3

1.4

1.5

1.6

1.1 

2.8 

5.9

10

1.8 

2.1 

2.5 

3.0

113

211

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

(t)

Oct.

2.4

775

*3.8

14

10

17

14

17

15

28

24

33

3T

26

25

23

22

23

22

22

21

21

22

21

21

20

20

19

20

21

21

602.8

19.4

+1.23

Nov.

20

20

21

29

45

32

28

26

*25

22

21

21

21

20

11

20

?1

20

19

22

55

40

36

31

45

84

IT

74

54

44

-

1,016

33.9

0

Dec.

38

34

32

51

69

60

52

51

47

42

48

45

43

36

34

34

32

32

30

27

26

25

26

28

28

26

a25

a23

a4D

46

43

1,173

37.8

0

Jan.

38

36

38

48

48

44

42

40

32

34

36

25

3Z

32

54

53

51

*44

44

44

46

59

48

53

67

61

52

27

55

45

a43

1,371

44.2

0

Feb.

a50

47

43

32 53

45

99

154

ITS

*97

63

70

66

75

71

62

59

123

124

104

91

127

146

113

81

86

74

69

_

_

-

2,347

83.8

+0.54

Mar.

68

64

61

54

74

69

70

67

62

58

40

S5

56

58

68

71

64

51

68

90

95

99

86

83

76

90

72

66

66

86

146

2,243

72.4

-0.49

Apr.

150

156

161

176

T5T

129

109

91

101

87

85

83

86

79

66

82

74

71

69

67

65

49

ST

90

92

82

72

57

65

63

-

2,811

93.7

+0.23

May

60

55

61

53

49

32 BT

52

51

46

42

74

75

67

55

*50

45

41

41

38

47

42

39

75

UL

68

63

68

57

47

49

1,683

54.3

-0.22

June

43

42

36

43

43

40

39

36

35

30

35

32

31

47

56

57

67

83

ET

53

56

61

*52

52

59

47

51

57

53

49

-

1,449

48.3

0

July

51

52

44

36

55

43

38

32

37

32

31

37

37

34

26

36

33

27

37

37

32

23

34

29

24

26

24

23

21

375

26

1,047

33.8

-0.26

Aug.

28

29

28

28

11

28

24

25

25

29

29

34

57

38

47

62

88

75

57

53

47

52

41

33

30

25

32

28

27

26

25

1,172

37.8

+0.49

Sept.

23

51

30- 54

38

32

30

27

21

*30

25

24

24

24

30

24

30

25

23

22

22

21

17

26

23

23

22

22

20

14

-

817

27.2

-0.81

Adjusted for change in

Mean 

Cfsm 

In.

20.7 

0.611 

0.70

33. S 

l.OC 

1.11

Calendar year 1950: 

Water year 195O-51:

37.8 

1.12 

1.29

44.2

1.30 

1.50

84.4 

2.49 

2.59

71.9 

2.12 

2.44

93.9 

2.77 

3.09

54.1 

1.60 

L.84

Observed

Max 110 Min 1.6 Mean 39.5 

Max 176 Min 2.4 Mean 48.6

48.3 

1.42 

1.59

33.5 

0.988 

1.14

38.3 

1.13 

1.30

26.4

0.779 

0.87

Adjusted

Mean 39.6 Cfsm 1.17 In. 15.85 

Mean 48.6 Cfsm 1.43 In. 19.46

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Watershops Pond. 

a No gage-height record; discharge estimated on basis of weather records, recorded range ir 

regulation pattern for adjacent days, and records for stations on nearby streams.
228 CONNECTICUT RIVER BASIN

Westfield River at Chesterfield, Mass.

Location Lat 42°23'48", long. 72°52'32", on right bank 0.2 mile (revised) downstream 

rrom West Branch and 0.5 mile downstream from highway bridge at West Chpsterfield, 

Hampshire County.

Drainage area. 111 sq mi.

Records available.--July 1946 to September 1951 (discontinued).

gage.--Water-stage recorder. Altitude of gage is 770 ft (from topographic map).

Average discharge.--5 years, 231 cfs.

Extremes. Maximum discharge during year, 10,400 cfs Nov. 26 (gage height, 9.53 ft), from 

rating curve extended above 6,700 cfs on basis of slope-area determination at gage 

height 11.93 ft; minimum daily, 12 cfs Oct. 5,6.

1946-51: Maximum discharge, 16,000 cfs D^c. 31, 1948 (gagp height, 11.93 ft), from 

rating curve extended above 6,700 cfs on basis of slope-area determination of peak 

flow; minimum daily, 4.8 cfs Aug. 28, 1949.

Remarks.--Records good except those for periods of ice effect, which are fair. Diurnal 

Fluctuation at low flow caused by mill above station.

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 Mar. 20, July 12)

Oct. 1 to Mar. Mar. 21 to July 12 July 13 to Sept. 30

0.8 11

.9 16

1.1 28

1.3 46

1.6 85

£.0 171

2 .5 

3.0 

4.0 

5.0 

6.0

335

576

1,310

2,370

3,720

1.3 

1.6 

2.0 

2.5

46

90

178

346

3.0 

4.0 

5.0 

7.0

595

1,310

2,370

5,300

1.1 

1.3 

1.6 

2.0

79

159

310

560

Discharge, In cubic feet per second, water year October 1950 to September 1-951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

15

15

13

13

12

12

13

13

13

32

117 ~TO

96

80

50

37

31

29

27

25

24

23

23

*27

31

35

31

27

27

28

27

1,016

32.8

0.295

0.34

Nov.

24

22

2T

39

408

168

89

65

54

49

43

41

38

37

34

36

42

44

*38

39

410

186

97

85

1,030

3,490

TT5

430

380

286

-

8,444

281

2.53

2.83

Dec.

229

196

196

621

1,060

420

305

990

902

470

552

*456

324

£50

210

225

205

170

150

125

130

130

135

130

125

90

54

100

120

180

170

9,460

305

2.75

3.17

Jan.

140

125

130

650

47T

290

225

185

150

160

170

160

150

130

340

474

*297

230

225

300

430

250

175

580

560

310

210

190

180

150

110

8,147

263

£.37

2.73

Feb.

200

760

350

270

217

199

50C7

720

420

300

265

235

280

463

*327

242

210

775

BT50~

380

340

570

425

295

270

276

380

372

_

_

-

10,641

380

3.42

3.57

Mar.

276

249

223

215

220

220

266

356

240

195

195

245

276

360

478

327

294

290

280

763

*503

368

294

756

694

432

350

440

887

2,100

5,240

18,032

582

5.24

6.04

Apr.

1,550

1,120

2,520

1,2SO

822

746

849

870

770

746

863

£17

919

639

503

452

498

399

368

*34£

286

261

618

432

385

508

355

290

265

242

-

20,515

684

6.16

6.87

May

211

194

178

168

158

151

144

135

124

126

283

526

309

211

*176

153

137

142

130

120

128

144

1£0

669

465

223

212

410

238

208

170

6,763

218

1.96

2.27

June

137

117

113

109

98

88

82

70

64

61

57

52

50

277

518

317

186

239

178

111

*90

80

103

168

258

163

110

90

108

197

-

4,291

143

1.29

1.44

July

205

148

102

78

76

146

100

70

55

46

56

248

318

119

73

58

*70

88

505

605

184

123

102

81

64

57

49

46

51

50

41

4,014

129

1.16

1.34

Aug.

40

50

39

50

43

33

30

IT

47

80

56

40

52

37

30

148

566 "20~8~

98

80

175

241

*104

73

70

82

67

57

48

42

37

2,764

89.2

0.804

0.93

Sept.

34

160

269 I2B"

76

63

84

64

50

44

40

42

37

34

131

116

64

50

42

*38

36

33

ST

36

42

79

52

66

52

41

-

2,036

67.9

0.612

0.68

Calendar year 1350: Max 3,490 Mln 10 Mean 219 Cfsm 1.97 In. 26.73

Water year 1950-51; Max 5,24O Mln 12 Mean 263 Cfsm 2.37 In. 3Z.21

Peak discharge (base, 2,TOO cfs).--Nov. 26 (12:45 a.m.) 10,4OO cfs (9.59 ft); Mar. 31 (4 a.m.) 

9,560 cfs (9.21 ft); Apr. 3 (1:15 p.m.) 4,380 cfs (6.43 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 14 to Jan. 4, Jan. 7-15, 18-30, Feb. 7-13, 

17^257 Mar. 4-6, 9-12 (no gage-height record Dec. 28, 29, Jan. 31 to Feb. 4).
CONNECTICUT RIVER BASIN 229

Weetfield River at Knlghtville, Mass.

Location. Lat 42°17'16", long. 72°51'53", on left bank at Knightvllle, Hampshire County,

 U.y mile downstream from Knlghtville Dam, 0.2 mile upstream from Sykes Brook, 2.4

miles upstream from Middle Branch, and 3.5 miles north of Huntington. 

Drainage area. 162 sq mi.

Heooras available.--August 1909 to September 1951. 

uage. water-stage recorder and concrete control. Datum of gage is 461.25 ft above mean

 sea level, datum of 1929 (levels by Corps of Engineers). Prior to Jan. 11, 1935, chain 

gage at site 0.5 mile upstream at different datum. Jan. 11, 1935, to May 20, 1940, 

water-stage recorder at site 700 ft upstream at datum 10.57 ft higher. May 21 to Dec. 

19, 1940, staff gage at site 700 ft upstream at datum 18.75 ft higher.

Average discharge.--42 years, 317 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 4,090 cfs Apr. 7 (gage height, 6.40 ft); minimum, 4 5 cfs Dec. 1; minimum daily, 16 cfs Oct. 6, 7.

1909-51: Maximum discharge, 37,900 cfs Sept. 21, 1938 (gage height, 29.58 ft, from 

floodmarks, site and datum then in use), from rating curve extended above 3,800 cfs on 

basis of slope-area determinations at gage heights 24.07 and 29.58 ft; minimum, 0.6 cfs 

Aug. 11, 1941; minimum daily, 4 cfs Aug. 10, 1913.

Remarks.--Records excellent except those for periods of iee effect, which are good, and

 tnose for period of no gage-height record, which are fair. Flow regulated by Knightville Reservoir since 1941 (see p. 255). 

Revisions (water years).--W 415: 1909-11 calendar years. W 541: 1915(M). W 1001:

1941-43.

Rating table, water ye 

height, In feet,

1.85 14

1.9 16

2.1 55

f 1950-51, except periods of Ice 

and discharge, in cubic feet per

440

750

effect ( 

second)

Day

1

2

3

4

5

6

7

b

9

10

11

12

13

14

15

Ifa

17

18

19

21

23

24

25

'F

27

28

29

30

31

Total

Mean

(t)

Oct.

22

21

19 

16

17

16

16

18

18

57

125

97

98

107

67

55

42

37

55

*52

30

23

31

37

40

42

42

56

34

35

34

1 , 284

41.4

0

Nov.

32

50

32

430

260

146

106

84

75

65

56

52

49

46

47

52

58

52

51

4U9

265

139

97

*83

475

1 , 4GU

1,820

2,440

1,190

-

10 , 085

336

+1.9

Dee.

225

186

261

304 

1,070

1,120

475

473

1,290

1,400

832

701

450

327

2ao

300

304

213

184

181

181

178

184

195

199

193

150

110

114

128

259

12,475

402

+14.1

Jan.

2B1

209

203

442

803

440

385

215

170

203

181

222

190

252

563

417

345

261

344

490

448

285

408

697

556

362

262

239

2UO

170

10,668

344

-4.B

Feb.

143

671

739

416

322

292

240

530

972

765

395

430

379

539

536

590

335

435

970

1,130

562

886

632

512

462

479

512

6£1

_

-

15,685

560

-0.2

Mar.

495

395

357

322 

339

343

357

560

440

257

273

344

567

540

880

570

470

45 u

440

998

1,000

617

478

798

1 , 100

680

505

562

829

1..440

562

17,998

581

+673.8

Apr.

1,640

2,640

1,030 

946

3,050

3,880

3,840

3,190

1,860

892

1,020

788

1,040

840

652

568

592

512

462

*440

376

343

676

601

478

617

478

395

348

515

-

34,507

1,150

-684.0

Ma,/

277

254

229 

215

199

187

181

173

161

161

274

638

422

280

225

190

170

170

156

146

141

173

143

534

638

253

174

362

236

187

159

7,710

249

-0.3

June

128

108

106 

106

97

86

77

69

65

61

58

54

52

176

574

3b2

245

384

31U

170

128

119

122

222

277

213

141

114

112

232

~

4,988

166

-0.1

July

239

190

136 

104

93

141

125

88

73

64

64

236

574

222

126

91

92

136

250

842

257

195

151

122

95

82

2

5

9

2

-£

5,128

165

-0.3

Aug.

54

63

55 

64

64

52

45

54

70

89

81

59

62

59

47

55

a650

a300

a!60

allO

a200

a300

*153

108

95

114

99

84

70

62

56

3,534

114

-0.1

Sept.

51

168

415 

222

131

95

112

97

77

67

59

59

56

*52

141

202

110

80

65

58

52

49

46

49

51

93

79

86

84

64

~

2,972

99.1

+0.1

Adjusted for change in reservoir contents

Mean

Of SIT]

41.4

0.256 

0.29

337 

2.08

2.32

Calendar year 1950: 

Water year 1950-51:

408 

2.90

342 

2.11 

2.44

560 

3.46 

3.60

832 

5.14 

5.92

886 

5.47 

6.10

249 

1.54 

1.77

Observed

Max 2,890 Min 16 Mtan 295 

Max 3,880 Min 16 M^an 348

166 

1.02 

1.14

165 

1.02 

1.18

114 

0.704 

0.81

99.1 

0.612 

0.68

Adjusted

Mean 295 cfarr, 1.82 In. 24.70 

Mean 348 Cfsir 2.15 In. 29.15

Discharge measurement made on this d,

t Change in contents in Knightville Reservoir, in nii-Liie'iia of ui cubic UUU-L^feet. ICCL 

a No gage-height record; discharge estimated on basis of weather records, records for other 

stations stations in Westfield wesriieia River nbasin, oanda records records of 01 outflow OUEI at Knightville DaNote.--Stage-discharge relation affected by ice Dec. 

10-1?, 16, 17, Mar. 14-19, 27.

27, 28, Jan. 8, 9, 23, 30, 31, Feb.
230 CONNECTICUT RIVER BASIN

Sykes Brook at Knightville, Mass.

Location Lat 42°17'27", long. 72"52'15", on right bank 200 ft downstream from bridge 

 on State Highway 112 at Knightville, Hampshire County, 0.4 mile upstream from mouth, 

0.4 mile west of Knightville Dam, and 3.5 miles north of Huntington.

Drainage area.--1.64 sq mi.

Records available.--June 1945 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 641.40 ft above mean 

sea level, datum of 19L9.

Average discharge.--6 years, 2.44 cfs.

Extremes.--Maximum discharge during year, 67 cfs Mar. 31 (gage height, 2.59 ft); minimum,

1945-51: 'Maximum discharge, 187 cfs Dec. 31, 1948 (gage height, 3.09 ft), from 

rating curve extended above 25 cfs; minimum, 0.04 cfs Aug. 27, 28, 1949.

Remarks.--Records good except those for periods of ice effect, 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)

1 to Mar. 50

_.--Same as 

edlng table

above 1.8 ft. 

rge, in cubic feet per

Mar. 31 to Sept. 30

econd, 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

Oct.

0.07

.07

.07

.07

*.07

.07

.07

.07

.07

.70

.79

.64

.49

.30

.18

.17

.16

.15

.14

.13

.1:5

.15

.18

.13

.17

.16

.14

.16

.16

.15

6.28

O.E03

0.124

0.14

Nov.

0.14

.14

.28

.94

3.3

.96

.56

.39

.34

.30

.27

.24

.23

*.22

.22

.22

.34

.50

.25

.41

3.8

1.14

.76

.67

7.5

16.7

5.2

3.8

3.2

2.4

-

55 72

1.'S6

1.13

1.26

Dec.

1.95

1.66

1.51

4.5

6.7

3.5

2.8

10.5

5.3

6.7

*5 . 2

3. '9

3.0

2.6

2.4

2.2

1.8

1.6

1.3

1.35

1.4

1.47

1.51

1.25

1.0

1.1

1.2

1.4

2.2

1.9

93.60

3.02

1.94

2.12

Jan.

1.55

1.45

1.66

4.5

3.3

2.4

2.1

1.8

1.5

1.7

1.8

1.60

1.51

1.4

3.6

*3.0

2.2

1.95

2.2

2.8

3.5

2.4

1.9

6.3

4.4

3.3

2.6

2. 2

Z\ 1

i!e

lil

75.62

2.44

1.49

1.71

Feb.

4.0

8.0

3.0

2.2

1^95

1.83

7.3

*6.6

5.0

4.0

3.6

3.3

4.2

5.2

*4.1

3.3

3. 2

12.0

7.7

6.1

7.7

14.5

8.9

6.3

5.4

5.7

6.3

5.6

_

-

156.98

5.61

3.42

3.56

Mar.

4.6

4.1

3.5

3.8

3.9

3.6

4.9

4.4

3.4

5.0

3.0

3.6

3.6

*15.0

11.6

7.7

6.6

5.8

5 3

*14.7

9.5

7.1

5.8

8.9

7.7

5.8

4.8

4,6

6.6

17.3

40

234.2

7.55

4.60

5.31

Apr.

15.6

10.8

*31

16.7

11.3

8.7

7.1

6.3

5.6

5.2

5.2

4.4

6.0

4.6

4.1

3.8

3.5

3.3

*3.2

2.9

2.7

2.7

4.3

3.6

3.6

3.5

3.0

2.8

2.7

2.4

-

191.1

6.37

3.88

4.33

May

2.2

2.0

1.93

1.87

1.81

1.67

1.55

1.49

1.38

1.32

2.7

3.6

2.6

2.0

1.81

1.55

1.32

*1.22

1.18

1.14

1.10

1.01

.98

3.7

2.7

1.87

2.9

3.7

2.5

2..0

1.61

60.41

1.95

1.19

1.37

June

1.22

1.05

1.01

.98

.90

.78

.65

.57

.50

.44

.40

.38

.38

2.2

2.7

2.2

2.1

3.7

373

2.0

1.49

1.49

1.67

1.67

1.67

1.18

.90

.78

1.13

1.44

-

40.88

1.36

0.829

0.93

July

1.44

*1.18

.84

.63

.59

.46

.36

.32

.26

.24

.28

2.2

3.0

1.44

.87

.57

*1.28

1.32

2.6

5.2

1.87

1.13

.87

.65

.44

.32

.27

.25

.28

.27

.25

29.71

0.958

0.584

0.67

Aug.

0.22

.18

.17

.25

.20

.16

.13

.28

.30

.32

.27

.20

.18

.17

.46

1.02

2.0

.81

.42

*.30

.40

.44

.28

.22

.23

.25

.20

.18

.14

.13

.12

10.64

0.343

0 . 209

0.24

Sept.

0.14

1.17

1.38

.62

.34

.30

.30

. 22

.17

.14

.14

.16

.14

*.14

1.04

.64

.34

.24

.19

.16

.14

.13

.14

.13

.19

.24

.20

.40

.24

.19

-

9.97

0.332

0.202

0.23

Calendar year 1950: Max 17.9 Min 0.07 Mean 2.15 rfsm 1.31 In. 17.79

Water year 1950-51: Max 40 Min 0.07 Mean 2.64 Cfsm 1.61 In. 21.37

charge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 18-22, Dec. 25 to Jan. 2, Jan. 7-11, 14, 17,

21-24, Jan. 3C Feb. 2, Feb. 7-11, 0,1 24, TUT*a« Mar. £ 6, 10, in 11, 11 O^. 23/27. ?7
CONNECTICUT RIVER BASIN

Middle Branch Westfield River at (Joss Heights, Mass

Location.--Lat 42"15'31", long. 72°52'23", on right bank at upstream side of highway

at Goss Heights, Hampshire County, 0.35 mile upstream from mouth and 1.7 miles

north of Huritington.

Drainaee area.--52.6 sq mi.

e. Water-stage recorder Datum of erase is 400.30 ft above mean sea level, datum of

Prior to Sept. 7, hain gage at same site. Prior to June 25, 1930, at

datum 1.00 ft higher.

Extremes.--Maximum discharge during year, 8,320 cfs Mov. 26 (gage height, 8.31 ft), from 

rat ing curve extended above 1,900 cfs on basis of slope-area determination at gage 

height 8.65 ft and contracted-opening determinations at gage height 10.61 ft; minimum 

discharge. 3.4 cfs Oct. 5, 6.

1910-51: Maximum discharge, 19,900 cfs Sept. 21, 1938 (gage height, 10.61 ft), 

mean of two contracted-opening determinations; maximum gage height, 13.87 ft Mar. 12, 

1936 (ice jam); practically no flow Sept. 3, 22, Oct. 20, 1910, July 30, 1912, Oct. 26, 

27, 1914.

Remarks.--Records excellent except those for periods of shifting control, which are good, 

 ancT"those for periods of ice effect, which are fair. Some diurnal fluctuation at low 

flow caused by mill above station.

ating table, water year 1950-51, except periods of Ice effect and shifting 

control (gage height, In feet, and discharge, In cubic feet per second)

E30 

401 

930 

1,800 

3,040 

2.0 110

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

Cfsm

In.

Oct.

3.6

3.6

3.6

3 .6

3.4

3.4

3.6

4.2

4.2

12

402T3"

26

27

19

13

11

9.9

8.8

*8.4

8.0

7.5

7.1

8.0

8.4

9 .3

10

9.3

8.8

8.4

8.4

327.5

10.6

0.202

0.23

Nov.

8.4

8.0

574

15

129

62

35

2E

21

18

16

14

13

*12

12

11

13

14

12

13

141

74

41

32

423

2 , 100

 52T

202

176

128

-

4,101.8

137

2.60

2.90

Dec .

103

86

82

252

443

191

137

470

39T

210

260

208

148

*114

99

97

87

74

60

56

56

56

60

58

54

40

4T

43

50

82

80

4,191

135

2.57

2.96

Jan.

64

56

60

280

5730"

140

95

70

72

74

73

72

64

54

140

*230

14,0

105

100

140

230

125

82

250

200

130

100

80

70

60

50

3,606

116

2.21

2.55

Feb.

100

330

150

120

110

95

2(30~

370

180

140

120

1O5

140

250

*120

100

100

400

270

200

190

450 2"50~

170

150

140

189

181

_

_

-

5,320

190

3.61

3.76

Mar.

143

126

108

108

105

105

124

171

122

99

94 110"

124

258

234

169

157

150

145

*410

258

197

159

301

293

205

160

179

339

921

2,380

8,454

273

5.19

5.98

Apr.

597

420

*1, 190 5~4F

344

286

289

289

248

255

248

197

281

213

169

150

157

137

*124

112

99

92

214

164

141

164

128

106

99

89

-

7,528

251

4.77

5.32

May

78

72

66

62

57

54

50

48

45

46

86

184

122

84

*68

57

49

46

44

41

40

4T

40

IBS- 229

90

83

148

90

76

62

2,430

78.4

1.49

1.72

June

50

41

39

38

34

29

25

21

20

18

16

14

13

W

167

112

68

115

76

46

36

44

39

61

58

50

34

28

28

50

-

1,446

48.2

0.916

1.02

July

48

*44

29

22

21

22

22

16

12

12.

17

119

192

*70

38

25

36

68

302

340

116

70

54

40

32

26

22

20

20

19

15

1,887

60.9

1.16

1.33

Aug.

13

12

10

13

11

9.2

7.0

12

16

15

16

11

46

22

16

26

293 ~5¥

47

*33

47

80

44

31

28

30

23

19

16

14

11

1,055.2

34.0

0.646

0.75

Sept.

11

50

~5¥ 122

35

25

29

25

19

15

13

13

12

*9.7

35

49

26

18

14

11

10

9.2

8.0 575"

9.7

19

16

22

19

13

-

725.8

24.2

0.460

0.51

Calendar year 1950: Max 2,100 Min 3.4 Mean 97.3 Cfsm 1.85 In. 25.09

Water year 1950-51: Max 2,380 Mln 3.4 Mean 113 Cfsm 2.15 In. 29.03

Peak discharge (base, 1,650 cfs).--Nov. 26 (1 a.m.) 8,320 cfs (8.31 ft); Mar. 31 (2 a.m.) 5,020 

cfs (7.08 ft); Apr. 3 (12 to 12:30 p.m.) 2,250 cfs (5.41 ft).

* Discharge measurement made on this day.

Note . Stage-discharge relation affected by ice Nov. 23, Dec. 15, Dec. 18 to Feb. 26, Mar. 10-12 

27": Shifting-control method used Oct. 1 to Nov. 25.
CONNECTICUT RIVER BASIN

Location.--Lat 4£°14'14", long. 72°53 1 46", on left bank at Huntington, Hampshire County, 

U.4 mile downstream fr m Roaring Brook and l|- miles upstream from mouth.

Drainage area.--93.7 315 mi.

Records available.--Spptember 1935 to September 1951.

Gage.--Water-stage recorder. Datum of

Average discharge. 16 years, 182 cfs.

Ext r erne-s . Maximum discharge during year, 1U.600 cfs Nov. 26 (gage height, 11.17 ft), from 

rating curve extended above 2,700'cfs on basis of computation of flow over dam at gage 

heights 11.93 and 12.95 ft; minimum, b.3 cfs net. 6,7.

1935-51: Maximum discharge, 21,800 cfr Sept. 21, 193a (gage height, 15.5 ft, from 

floodmarks), mean of slope-area determination and computation of flow over dam; minimum, 4.2 cfs Aug. 28, 29, 1949.

fair

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

0.49 

.5

1.4 

1.7 

2.1

66 4.0

106 5.0

1,370

2,150

3,030

3,610

Mar. 31 to Sept. 30

0.9 25 2.0 189 

1.1 39 E.5 400 

1.4 70 3.0 690 

1.7 116

Note. Same as preceding table below 0.9 and 

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

lu

11

12

13

14

15

ie

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

10

9.7

9.4

9.1

8.8

8.6

8.6

9.4

9.4

20

40

34

41

36

26

21

18

18

18

*16

16

15

15

17

18

19

18

16

16

16

16

553.0

17.6

0.190

0.22

Nov.

16

16

16

30

195

93

56

41

34

30

26

24

23

*22

24

27

30

32

29

27

243

124

77

63

915

5,350

664

445

368

280

"

7,320

244

2.60

2.91

Dec.

224

185

173

383

806

364

255

793

705

403

496

397

270

*205

182

179

160

134

105

100

105

103

110

110

100

73

74

78

90

150

143

7,655

247

2.64

3.04

Jan.

114

102

108

500

448

255

190

150

120

134

134

132

116

100

255

*343

224

182

182

250

390

210

150

440

433

255

185

150

140

110

23.

6,575

212

2.26

2.61

Feb.

145

630

265

230

190

168

381

595

555

255

225

195

241

585

*265

215

190

710

500

358

366

859

517

325

270

276

353

555

-

-

-

9,837

351

3.75

3.90

Mar.

276

242

210

203

197

197

250

369

246

180

171

182

224

387

451

313

284

267

263

*746

5L1

380

296

587

601

405

313

356

673

1,600

5,290

14,679

474

5.06

5.83

Apr .

964

690

2.250

992

646

510

466

435

385

349

400

344

472

364

306

269

282

246

*223

203

180

169

385

290

250

282

220

169

174

160

-

13,097

437

4.66

5.20

May

143

132

122

114

108

101

98

90

84

88

157

321

199

143

*120

106

94

87

65

78

77

77

83

354

262

143

130

210

136

114

101

4,155

134

1.43

1.65

June

86

71

70

65

59

52

46

40

37

35

51

30

28

134

256

*158

106

218

121

83

65

77

70

102

96

76

56

51

49

83

-

2,449

81.6

0.671

0.97

July

74

74

52

39

36

34

32

26

22

11

55

225

310

*113

69

50

78

171

564

616

200

122

102

81

65

56

47

44

45

41

55

5,497

113

1.21

1.39

Aug.

28

27

24

27

26

22

20

23

32

30

29

23

33

29

24

45

280

96

60

*44

62

73

46

34

31

66

60

57

33

26

20

1,412

45.5

0.486

0.56

Sept.

18

56

149

78

49

36

37

33

26

22

20

19

19

*18

49

71

39

27

23

20

19

17

16

18

20

30

27

38

33

24

-

1,051

35.0

0.374

0.42

Calendar year 1950; Max 5,530 Min 6.6 Mean 173 Cfsm 1.85 In. 25.01

Water year 1950-51: Max 3,330 Min 8.6 Mean 196 Cfsm 2.11 In. 26.70

Peak discharge (base, 2,150 cfs). --Nov. 26 (1 a.m.) 10.600 cfs (11.17 ft); Mar. 31 (5 a.m.) 6,530

cfs (6.85 ft)j Apr. 3 (12:30 p.m.) 4,130 cfs (6.97 ft).

* Discharge measurement made on this day.

Note. --Stage-discharge relation affected by ice Dec. 13, 14, 19-21, 23-30, Jan. 4, 7-9, 14, 15,

20-23, 26-30, Feb. 1-5, 8-12, 15-19, 24, 25, Mar. 10.
Location.--La t- 42 0 07'34", long. 7C-53'37", at Cobble Mountain Dam, ?| miles west of Westfield, Hampden County.

Drainage area.--45.c s<i mi.

Remarks . --Discharge nomputed on basis of flow through Vent LIT i meters anil flow over reservoir spillway or through bypass tunnel. No flow over spillway or through tunnel during 

year. Flow regulated by Borderi Brool: Reservoir since 1910 and Cobble Mountain Reservoir since August 1931 (see p.255 ): discharge adjusted for effect of this regulation.

Cooperation. --Re :j ords furnished by Board of rfafer Commissioners, Springfiled. 

Revisions.--rf 501: Drainage area.

Monthly

December. ..............

Calendar year 1950...

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

September. .............

Water year 1950-51...

Mean

145

127

63.4

151

205

211

60 . 9

43.5

40. 1

5.74

11.2

99.7

Per square 

mile

U.165

3.12

2.77

1.32

2.36

4.43

4.61

.945

.378

.125

.245

2.13

Runoff in 

Inches

0.19

3.20

24.73

5 30

4.67

5.31

1.53

1.05

1.01

.14

.27

2a.se

288890 O - 54 - 16
Westfield River near Westfield, Mass.

Location.--Lat 42°06i24", long. 72°41'58", on left bank 0.7 mile downstream from Great 

Brook and 3 miles east of Westfield, Hampden County.

Drainage area.--497 sq mi.

rtecords available.--June 1914 to September 1951.

liage.--Water-stage recorder. Datum of gage is 98.25 ft above mean sea level, datum of 

TT929. Prior to Nov. 3, 1933, on right bank at same datum.

Average discharge.--37 years, 922 cfs (adjusted for diversion and, since October 1931, for 

storage].

Extremes.--Maximum discharge during year, 18,100 cfs Nov. 26 (gage height, 16.51 ft); minimum, 70 cfs Oct. 9; minimum daily, 76 cfs Oct. 7.

1914-51: Maximum discharge, 55,500 cfs Sept. 21, 22, 1938 (gage height, 29.40 ft, 

from floodmarks), from rating curve extended above 18,OuO cfs on basis of computations 

of flow over dam at gage heights 27.20 and 29.40 ft; minimum, 9 cfs Oct. 2, 1921.

Remarks.--Records excellent except those for periods of ice effect,and backwater from aquatic vegetation, which are good, and those for periods of doubtful or no gage-height record, which are fair. Flow regulated hy diversion from Westfield Little River for municipal supply of Springfield, by Borden Brook Reservoir, Cobble Mountain Reservoir since 

1931, and by Knightville Reservoir since 1941 (see p. 255),

Revisions (water years).--W tOl: 1924(M). W 756: Drainage area. W 1051: 1915(M), 1919(MJ, 1920(M) --' " ---"' '

RatIng , water year 1950-51, except periods of Ice 

backwater from aquatic vegetation (gage hel 

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

a730 1,950

a2,30Tj| 1,520

1,780 1,220

l,15u 1,070

934 1,260

1,410

1,160

2,470

2,550

2,730

2,130

5,840

3,040

1,950

1,480

1,750

1,960

2,230

38,436! 33,037 53,247

1,240 1,066 1,902

+231.2 +227.1 -106.1

Me 1,018

itents In Knightville, Border

basis of recorder graph, 

ther stations In Westfield River bas

* Discharge measurement made on this day.

t Diversion from Westfield Little River and change In 

Cobble Mountain Reservoirs, In millions of cubic feet.

a Doubtful or no gage-height record; discharge esrimat 

records, 1 discharge measurement, and records fo

b Stage-discharge relation affected by Ice.

d Doubtful gage-height record; discharge computed from gage-height graph adjusted o. 

weather records, engineer's notes, and records fDr other stitioi

Note.--Backwater from aquatic vegetation Oct. I to Nov. 13, J14-13, July 22 to Aug. 16, Aug. la to Sept. 30.

Westfield Ri 

9-13, June 20 to Ji

i basis of

>asln.

ily 12, July
CONNECTICUT RIVER BASIN

Location. Lat 41°59'14", long. 72°36'2l", on right bank just upstream from Enfield Dam, 

l mile downstream from Thonrpsonville , Hartford County.

Gage.--Water-stage recorder on river and on canal of Connecticut Light and Power Co. 

Hat urn of gage is 33.48 ft above mesn sea level, datum of 1929.

Extremes. Maximum discharge during year, 106,000 cfs Apr. 1 age height, 7.52 ft); minially, 1,90U cfs Oct.

1928-51: Maximum discharge, 282,000 cfs Mar. 20, 1936 (gage height, 16.6 ft, from

floodmarks); minimum daily, 1,060 cfc Aug. 28, 1949

Remarks. --Records excellent except those below 4,000 cfs, and those for periods of ice 

effect or no gage-height record, which are good. Discharge includes water diverted 

around station by canal of Connecticut Light & Power Co. Flow regulated by powerplants, by diversion from Chicopee River basin, and by First Connecticut and Second 

Connecticut Lakes, Lake Francis since 1940, Comerford Station Pond since 1930, Quabbin 

Reservoir since 1939 (see following page), and other reservoirs (combined usable capacity, about 88-?85 billion billion cu ft). 

Revisions (water years).--W 741 1932. W 891: Drainage area.

51,800 16,700 

9,3001 16,200 

40,400 15,100 

47,600 12,400 

42,000 blZ.OOO

ut and Second Connecticut Lakes tc 

and diversions from Chicopee Rive

* m&charge measurement made on this day.

t Change in contents in all reserv-dr.3 from First Connectii 

Borden Brool: and r'obble Mountain Reservoirs listed on p. 255 

basin, in millions of cubic feet.

t Expressed in thousands.

b Stage-discharge relation affected by ice.

Note. No gage-height record Sept. 2-19; discharge estimated on basis of weather records, recorded 

range in stage, weekly regulation pattern, and records for Connecticut River at Montague City, Mass., 

Chicopee River at Indian Orchard, Mass., and Westfield River near Westfield, Mass.
Average discharge. 23 years, 135 cfs.

Extremes. Maximum discharge during year, 1,040 cfs Apr. 1 (gage height, 7.60 ft); minimum, 

25 efe Sept. 1 (gage height, 0.52 ft); minimum daily, 34 cfs Oct. 1 and Sept. 1.

1928-51: Maximum discharge, 7,360 cfs Sept. 21, 1938 (gage height, 16.08 ft, from 

floodmark), on basis of computation of peak flow over dams 7 and 9 miles above station, 

adjusted for flow from intervening area on basis of computation of peak flow over dam 

on Broad Brook; minimum, 10 cfs Auer. 13 and 14, 1944; minimum daily, 16 cfs Aug. 13, 

1944.

Revisions. The figures of maximum discharge f>.r seme wnter years have been revised 

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

indicated.

Watt-r-3uprjly 

taper

681. .......

756. .......

1111..... ...

Water 

year

192P-29

1933-34

1947-48

Dat"

Mar. 17

Gaffe heieM 

TfeetT

°> 27

9.8

9.47

Discharge 

(cfs)

1 ,260 i ,e?o

1,560

Remarks.--Records good except tl for no gage-height record, which are tair. Plow regu

ated by mills and small reservoirs above station.

Revisions (water years). W 726: 1931, drainage area. W 851: 1936(M). W 321: 1940.

Revised figures of discharge for the water years 1938, and 1939, 1948 and 1949 are

iven herewith. They supersede those published in Water-Supply Papers 851, 871, 1111,

Day 

(water year)

1937-38 

Sept .24. . . .

26. ...

27 ....

£3 ....

29. ...

3U . . . .

1938-39

Oct . 1 ....

2 ....

3 . . . .

Discharge 

(cfs)

1,24U

B24

602

504

462

442

425

411

391

368

Day 

(water year)

1938-39 

Oct. 4....

5. ...

6 ....

7 ....

8. ...

9. ...

10. ...

11. ...

12. ...

13. ...

14. ...

15. ...

Discharge 

(cfs)

333

318

234

274

270

263

263

24£

238

224

217

214

Day 

(water year)

1933-39 

Oct. 16. ....

17. ....

13. ....

19. ....

20. ....

21.. ...

22 .....

25. ....

26. ....

27. ....

28. ....

29. ....

Discharge 

(cfs)

217

230

210

210

210

230

210

340

310

260

230

210

Day 

(water year)

1938-39 

Oct. 30. ....

1947-45

Mar. 17. ....

18. ....

19. ....

20 .....

21.. ...

22 .....

2s!. ...

24. ....

Discharge 

(cfs)

2ld

1,190

1.080

709

790

995

946

946

627

Revised peak discharge.--1947-46 Mar. 17 (5:30 1,580 ;fs; Mar

Month

September 1938. ....

Water year 1937-38.....

October 1938. ............

Calendar year 1938..... 

Water year 1938-39.....

March 1948. ..............

Water year 1947-48..... 

Calendar year 194d. ....

Cf s-days

IB, 686

81.0B2

91,520 

69,008

57,926 

56,514

Maximum

5,090

5,090 

932

1,190 

1,190

Minimum

36

41 

35

25 

25

Mean

222

251

189

158 

154

Per square 

mile

2.26

2.55 

1.92

1.61 

1.57

Runoff in 

inches

30.61

34.56 

26.07

21.91 

21.39

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

discharge in cubic feet per aecond) 

(Bacl-cwater f r jm leaves Oct. 16-Nov. 4)

1 tc Feb. 7 Feb. 7 to Sept. 30

345

450

560

706

923
CONNECTICUT RIVER BASIN 

Scantie River at Broad Brook, Conn.

237

2cond, water year 0:tcber 1950 to September 1951

Day

1

^

5

4

5

6

7

B

9

in

11

12

13

L4

15

16

17

18

19

20

21

00

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

34

44

44

40

40

42

42

38

42

56

55

70

76

78

60

58

53

52

51

51

47

42

46

47

46

46

44

44

38

*47

45

1,518

49.0

0.498

0.57

Ijov .

45

42

45

46

82

95

79

67

61

58

55

47

55

57

55

55

54

51

44

55

123

144

122

93

118

420

430

*348

207

145

-

3,298

110

1.12

1.25

Dec.

116

104

96

132

298

314

243

172

160

152

158

152

137

122

112

113

110

110

98

84

75

76

78

82

89

67

yg

72

70

182

186

4,035

130

1.32

1.52

Jan.

175

142

141

237

212

165

138

130

101

111

112

108

107

101

221

367

306

220

*174

174

192

175

128

221

348

348

238

162

152

138

9_3

5,637

182

1.85

2.13

Feb.

116

410

420

326

212

166

35b

*774

a510

a450

a420

3400

a370

a340

307

231

202

474

502

*415

343

588

642

469

339

314

275

256

-

-

-

10,629

380

3.86

4.0E

Mar.

231

223

216

223

256

266

266

256

231

202

184

178

166

196

307

307

266

216

190

320

400

*400

339

345

356

327

£56

223

209

254

759

8,568

276

2.80

3.23

Apr.

921

549

576

828

657

460

389

345

321

300

292

300

300

275

248

231

231

216

209

202

196

134

254

314

327

275

223

196

178

172

-

10,169

339

3.45

3.85

May

156

*150

140

134

128

127

125

121

116

115

130

196

209

184

144

124

110

102

98

100

102

100

98

215

500

284

190

190

172

156

126

4,642

150

1.52

1.75

June

110

101

95

97

118

115

100

88

82

80

82

76

73

86

134

145

132

118

114

96

*B3

79

92

90

102

83

73

82

110

106

-

2,942

98.1

0.997

1.11

July

104

96

85

72

70

74

68

61

58

52

48

43

51

51

47

47

*61

72

87

118

86

64

64

54

50

46

44

42

42

46

38.

1,946

62.8

0.638

0.74

Aug.

11

44

52

45

40

44

41

41

40

44

44

41

72

70

81

152

336

262

176

120

114

116

93

76

62

60

62

55

51

5U

42

2,563

82.7

0 . 840

0.97

Sept.

34

42

114

145

123

83

72

64

55

54

52

51

4H

46

56

64

64

58

55

52

52

48

50

48

47

48

48

48

50

51

-

1,822

60.7

0.617

0.69

Calendar year 1950: Max 540 Min 30 Mean 121 Cfsm 1.23 In. 16.72

Water year 1950-51: Max 921 Min 34 Mean 158 Cfsm 1.61 In. 21.83

Peak discharge (b;

ft)7 - - - ,---

946 cfs (7.23 ft).

* Discharge measurement mad< 

a No gage-height record; dl

___^_______________ 550 cfg).--Feb. 8 (4 .m.) 923 cfs (7.11 ft); Feb. 18 ( 

23 (1:30 p.m.) 689 cfs (5.87 ft); Apr. 1 (8 a.m.) 1,040 cfs (7.60 ft)

p.m.) 560 cfs (4.96 

Apr. 4 (5:30 p.m.)

day. 

stlmated on basis of recorded range In stage
CONNECTICUT RIVER BASIN

West Branch Farmington River near New Boston, Mass.

Location.--Lat 42°04'45", long. 73°04'24", on left bank 5 ft downstream from highway

oriage, 0.3 mile downstream from Clam River, and 1 mile south of New Boston, Berkshire 

County.

Drainage area.--9g.Q sq mi.

Records available.--May 1913 to September 1951. Prior to October 1948, published as 

Farmington Klver near New Boston.

Gage.--Water-stage recorder. Datum of gage is 758.21 ft above mean sea level, datum of

Average discharge.--38 years, 180 cfs (adjusted for storage since October 1936).

Extremes.--Maximum discharge during year, 10,100 cfs Nov. 25 (gage height, 10.06 ft); min-

 imum, 9.2 efs Oct. 6; minimum daily, 17 cfs'Oct. 27, Aug. 31.

1913-51: Maximum discharge, 18,500 cfs Sept. 21, 1938 (gage height, 12.94 ft), from 

rating curve extended above 1,400 cfs on basis of contracted-opening and slope-area 

determinations at gage heights 10.65 and 12.94 ft; minimum recorded, 4.4 efs Aug. 27, 

1913; minimum daily, 5.7 cfs Aug. 31, 1929.

Remarks.--Records good except those for periods of ice effect, which are fair. Flow regulated by Otis Reservoir (see p.255).

Revisions (water years).--W 641: 1924(M). W 756: Drainage area. W 781: 1928(M).

Rating table, water year 1950-51, except periods of ice effect (gage 

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

3.1 81

3.5 152

4.0 278

in cubic feet per second, water

5.0 660

5.5 910

6.0 1,290

7.0 2,440

7.5 3,210

:ar Octcber 1950 to September 1951

Pay

1

2

3

4

E

,:

7

Oct.

74

74

91

80

72

23

40

8 ; 92

9

10

11

12

13

14

15

If

17

18

19

21 1

21

22

23

24

25

26

£7

28

E9

30

31

Total

Mean

(t)

87

98

107

116

56

45

88

87

85

82

77

21

28

82

*85

87

87

76

17

^

B4

85

84

2,232

72.0

-146

Noy.

81

74

22 53

267

168

148

139

123

39

33

88

87

85

104

*78

36

37

38

93

292

197

113

69

1,740

3,090

859

488

354

258

-

9,303

310

+30

Dec.

200

165

161

416

585

Jan.

115

100

T35

420

353

360 ! 241

266

436

*468

319

342

287

225

181

156

159

146

125

105

97

100

100

105

105

95

72

73

78

90

150

145

6,312

204

+165

188

155

125

140

140

*135

115

110

270

271

220

179

176

219

335

249

284

455 3"8~6~

290

238

200

180

160

145

6,704

216

+47

Feb.

220

408

306

272

230

204

370

450

355

310

270

*249

279

342

278

244

225

540

427

346

373

622

449

349

303

278

306

284

_

-

9,289

332

-14

Mar.

241

217

200

192 7TO"

241

279

316

264

241

236

241

249

392

424

339

316

303

*287

576

471

377

329

489

499

385

309

297

414

1,010

2,430

12,774

412

+22

Apr.

935

678

1,700

* 1,040

705

575

511

475

443

423

463

443

515

411

326

*303

312

275

255

233

184

142 3T6"

261

227

220

188

163

163

152

-

13,037

435

+52

Hay

139

129

122

95

103

152

150

146

142

134

122

249

238

*197

181

154

138

74

75

127

123

118

116

295 S44-

146

112

129

98

84

73

4,405

142

-37

June

62

54

50

52

60

47

46

38

34

30

29

27

27

150

209

139

102

110

*80

60

51

58

59

109

95

71

55

48

49

62

-

2,063

68.8

+41

July

68

69

49

38

43

37

30

26

22

24

41

136

182

89

59

*44

70

131

595

555

270

163

116

82

62

51

43

40

41

38

32

3,249

105

+30

Aug.

29

27

25

30

25

22

20

26

27

34

40

27

41

30

37

66

100

*59

41

33

48

68

40

30

27

42

32

24

21

19

r?

1,107

35.7

+12

Sept.

18

ITS TED"

91

72

46

47

40

109

105

104

104

96

23

62

148

*120

110

104

94

24

40

100

104

104

109

95

46

47

102

-

2,599

86.6

-119

Adjusted for change in contents in Otis Reservoir

Mean 

Cfsm

17.5 

0.190 

0.22

322

3.50 

3.90

Calendar year 1950: 

Water year 1950-51:

265 

2.88 

3.32

234 

2.54 

2.93

326 

3.54 

3.69

420 

4.57 

5.27

455 

4 . 95 

5.51

128 

1.39 

1.61

Observed

Max 3,090 Min 12 Mean 167 

Max 3,090 Min 17 Mean 2OO

84.6 

0.920 

1.03

116 

1.26 

1.45

40.2 

0.437

0.50

40.7 

0.442 

0.49

Adjusted

Mean 179 Cfsm 1.95 In. 26.44 

Mean 203 Of sir 2.21 In. 29.92

Peak discharge (base, 1,400 cfs).--Hoy. 25 (1O p.m.) 10,100 cfs (10.06 ft); Mar. 31 (1:30 a.m.) 

4.UO cfs (B.05 ft); Apr. 3 (10 to 11 a.m.) 2,570 cfs (7.09 ft); July 19 (5 p.m.) 1,710 cfs (6.42

* Discharge measurement made on this day.

t Change In contents in Otis Reservoir, in millions of cubic feet.

Note. Stage-discharge relation affected by ice Dec. 18 to Jan. 4, Jan. 8-15, 17, 24, Dec. 28 to 

FebTT, Feb. 7, 9-11, 17.
CONNECTICUT RIVEF BASIN 939 

Still River at Roberteville, Conn.

Locatlpn.--Lat 41°53 I 04", long. 73°02'03", on left bank 1,500 ft downstream from Sandy 

Brool:, 1 mile southeast of Robertsville, Litchfield County, 1 mile northwest of 

Riverton, and 1 mile upstream from mouth.

Drainage area.--S4.4 sq mi.

Records available.--July 1943 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 510.24 ft above mean sea level, datum of

Extremes.--Maximum discharge during year, 4,250 cfs Nov. 25 (gage height, 7.17 ft); minimum, 5.6 cfs Oct. 4,5 (gage height, 0.35 ft); minimum daily, 11 cfs Oct. 1.

1943-51: Maximum discharge, 9,550 cfs Dec. 31, 1948 (gage height, 10.12 ft), from 

rating curve extended above 2,600 cfs on_basis of slope-area determination at gage 

height 10.12 ft; minimum, 6.1 cfs Sept. 29, 30, 1948; minimum daily, 8.0 cfs Aug. 27, 

23, 1949; minimum gage height, 0.30 ft Aug. 28, 29, 1949.

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

which are fair. Ordinary flow regulated by powerplant above station.

Rating tables, water year 1950-51, except periods of lee effect 

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

Oct. 1 to Nov. 25

0.5 9 1.2 5C 

.7 16 1.5 84 

.9 £6 2.0 173 

Note. Same as following

table above 2.0 ft.

Nov. 26 to Sept. 30

1.1

1 5

54

100

180

2.5

3.0 

4.0 

5.6

310

520

1,110

2,410

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

Diy

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

23

24

25

26

27

28

29

30

31

ToBaJ

Mean

Cf sm

Oct.

11

26

21

21

20

24

14

12

35

62

83

62

79

40

39

38

a44

a21

a35

a30

a20

a23

a3£

a34

a33

a35

a28

a21

a28

*a27

30

1,028

33.2

0.393

0.45

Nov.

30

30

28

29

267

144

99

81

67

58

34

27

39

34

34

35

41

32

34

42

273

165

94

106

697

2.550

850

*473

352

275

-

6,820

227

2.69

3.00

Dec.

232

201

177

380

740

413

289

598

644

389

393

334

260

214

190

186

171

b!50

b!40

bl50

b!30

b!40

b!40

138

blSO

b!70

b!60

blSO

b220

338

240

8,207

265

3.14

3.62

Jan.

b210

b!90

180

443

*448

292

240

b210

b200

b!90

bl80

blSO

166

145

327

377

300

245

232

266

334

251

220

527

520

338

245

214

208

175

blSO

8,203

265

3.14

3.62

Feb.

b!90

349

292

240

218

185

410

b530

b400

b320

b280

*b250

b260

385

328

260

221

630

525

397

432

920

580

377

324

289

310

303

_

_

-

10,205

364

4.31

4.49

Mar.

251

237

210

204

220

216

260

328

263

216

190

214

218

341

438

328

278

260

*245

679

535

385

310

425

438

338

260

257

5U3

710

2,260

11,817

381

4.51

5.20

Apr.

905

560

1.450

1,080

638

480

377

320

303

269

301

510

385

317

245

248

£40

225

208

192

164

157

409

342

260

232

212

178

162

*175

-

11,324

377

4.47

4.99

May

155

140

142

135

129

94

109

111

98

102

126

230

153

163

126

117

100

92

78

fil

96

75

97

253

241

142

115

149

110

78

103

3,926

127

1.50

1.73

June

72

78

47

71

141

107

79

55

53

41

72

38

70

151

260

158

131

154

146

110

95

*95

78

82

92

77

101

122

99

106

-

2,981

99.4

1.18

1.32

July

140

150

80

67

112

74

72

40

69

37

63

90

147

100

51

44

61

72

162

561

135

80

78

71

*59

51

48

29

31

65

27.

2,666

86.0

1.02

1.18

Aug.

70

29

39

28

?3

58

18

56

24

55

59

34

49

40

59

129

519

143

75

65

116

237

120

63

58

70

37

*48

44

45

37

2,247

72.5

0.859

0.99

Sept.

32

221

269

163

108

31

8,4

Bl

45

39

49

48

39

41

53

75

68

59

39

59

57

44

42

56

52

57

53

53

44

41

-

2,147

71.6

0.848

0 . 95

Calendar year 1950; Max 2,350 Min 9.0 Mean 158 Cfsm 1.87 In. 25.3?

Water year 1950-51: Max 2,350 Min 11 Mean 196 Cfsm 2.32 In. 51.54

Peak discharge (base. 1.200 cfa).--Nov. £5 (12 p.m.) 4,250 cfs (7.17 ft); Feb. 7 (8 p.m.) 1,320 

cfs (4.29 ft); Mar. 31 (3 a.m.) 3,250 cfs (6.40 ft); Apr. 3 (3 p.m.) 2,040 cfs (5.20 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather 

records for stations on nearby streams, and records of operation of hydroelectric plant abov 

station.

b Stage-discharge relation affected by ice.
240 CONNECTICUT RIVER BASIN

West Branch Farmington River at Rlverton, Conn.

Location. Lat 41°57'13", long. 73°00'5l", on right bank 0.4 mile downstream from Still 

Kiver, 0.6 mile south of Riverton, Litchfield County, 8." miles upstream from East 

Branch, and at mile 51.3.

Drainage area.--216 sq mi.

Records available.--September 1929 to September 1951. Prior to October 1948, published as 

Farmington River at Riverton.

 T929. Gage.--Water-stage recorder. Datum of gage is 472.22 ft above mean sea level, datum of

Average discharge.--22 years, 384 cfs (adjusted).

Extremes.--Maximum discharge during year, 17,400 cfs Nov. 26 (gage height, 12.37 ft); minimum, 35 cfs Oct. 1 (gage height, 0.65 ft); minimum daily, 50 cfs Oct. 28.

1929-51: Maximum discharge, 37,100 cfs Sept. 21, 1938 (gage height, 17.95 ft, from 

floodmarks), from rating curve extended above 5,700 cfs on basis of velocity-area study 

and records for other stations on Farmington River; minimum, 17 cfs Sept. 28, 1929, 

Aug. 1, 1936; minimum daily, 23 cfs Aug. 1, 1936; minimum gage height, 0.45 ft Aug. 28, 

1949.

Remarks.--Records excellent except those for periods of ice effect or no gage-height

record, which are fair. Flotf regulated by Otis Reservoir (see p.255 ) and at low flow 

by plants above station.

Revisions (water years).--W 731: Drainage area, rf 1081: 1930-36.

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

0.3 

1.1 

1.5 

2.0 

2.5

Oct. 1 to Mar. 50

0.8 

1.1 

1.5

3.

Bis:harge, in cubic feet per d, water year October 1H50 to September 1951

114 

lid 856

.580

475

414

1,180

771

b550 

b450 

414 

b900 

*947

621

628

556

481

539

482

466

491

797

712

658 

*628 

1,490

1,200

913

745

1,080

1,120

,130

924

726

438

368

173

137

116

104

302

583

153

231

232

125

197

133

107

125

234

692

1.120

479

283

132

114

235

163

154

113

alSO aieo

a!65 

a!65 

a!55 

alOS 

allO

a200

a!30 

a95 

a!40 

alSO 

a!75

a!75 

a!65 

allO 

a75 

a!30

5,587

116

-54.5

6,796

219

+11.2

Adjusted for change In reservoir contents

Cfsn 1.42

1.64

219

1.01

1.13

1.06

1.22

Min Mea

Cfsm 1.81 

Cfsir 2.17 In.

24.61

29.43

Peak dischar

0 cfs (8.59 ft); Apr. 3 (IE: 3

Dlschar=e measurement made on

Change in contents, equivalent in

No gage-height record; discharge i

earby streams.

Stage-discharge relation affected by i

]_.--Nov. 26 (11:50 p.m.) 17,400 cfs (12.37 ft); Mar. 31 (3 a.n 

0 p.m.) 5,070 cfs (6.85 ft). 

this day.

ubic feet per second, furnished by the Colllns Co.

tlmatei on basis of weather records, and records for at£
CONNECTICUT RIVER BASIN 241 

Burlington Brook near Burlington, Conn.

Location. Lat 41°47'10", long. 72°57'55", on left bank, 1-J- miles north of Burlington, 

Hartford County, 3 miles upstream from mouth, and 3 miles southwest of Collinsville.

Drainage area.--4.13 sq mi.

Records available.--September 1931 to September 1951.

Gage.--Hater-stage recorder and sharp-edged square orifice and rectangular weir. Datum of 

gage is 714.00 ft above mean sea level, datum of 1929.

Average discharge. 20 years, 7.83 cfs.

Extremes.--Maximum discharge during year, 287 cfs Mar. 31 (gage height, 4.66 ft); minimum, 

0.59 cfs (regulated) June 25 (gage height, 0.32 ft); minimum daily, 0.93 cfs Sept. 29, 

30.

1931-51: Maximum discharge, 676 :fs (revised) Sept. 21, 1938 (gage height, 7.24 

ft), from rating curve emended above 220 cfs on basis of one current-meter measurement 

and form of theoretical rating; minimum, 0.13 cfs June 21, 1933; minimum daily, 0.64 

cfs Sept. 23, 24, 27-29, 1941, Aug. 27, 28, 1949; minimum gage height, 0.03 ft Oct. 11, 

13, 1943 (orifice plate removed).

Revisions.--The maximum discharge for the water year 1938 has been revised to 676 

cfs Sept. 21, 1938 (gage height, 7.24 ft), superseding figure published in Water-Supply 

Paper 851.

Rating table, water year 1950-51, except periods of Ice effect or 

backwater from debris (gage height, In feet, and discharge, in 

cubic feet per second)

o.ei

2.67

3.11

4.55

1.3 

1.7 

2.5 

3.0

10.3

29.0

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

Day

1

£

3

4

5

g

7

8

9

lu

11

12

13

14

15

ie

17

18

;s

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1.29

1.26

1.23

1.19

1.15

1.16

1.19

1.23

1.29

5.45

3.85

4.15

3.6

2.5

2.17

1.97

1.85

1.81

1.77

1.74

1.66

1.62

1.97

2.09

1.93

1.77

1.70

1.66

1.70

1.70

1.62

61.25

1.98

0.481

0.55

Nov.

1.56

1.58

*1. 2

4.27

16.6

5.52

3.74

3.15

2.67

2.38

2.16

2.02

1.95

1.88

1.82

1.82

1.95

1.88

1.75

2.02

13.9

5.43

3. £2

2.98

26.4

73

*16.9

12.2

11.1

8.32

~

236.21

7.67

1.91

2.13

Dec.

7.13

6.30

6.30

15.0

14.5

9.93

8.00

44.7

32.4

14.6

17.8

13.0

9.60

8.32

8.00

8.00

7.71

6.85

b6. 6

b6. 3

be.O

bs.e

a5. 5

a5.2

a5. 6

a4.8

a4.0

a3.6

aZO

a25

a!2

348.54

11.2

2.72

3.14

Jan.

9.0

7.71

8.95

33.6

20.6

11.9

10.7

b9.9

b8.6

b8.0

7.71

7.71

7.13

7.13

35.1

22.5

11.9

10.3

12.2

14.6

17.8

blO

b8.6

38.3

23.9

14

11

9.0

9.0

7.0

6.5

420.34

13.6

3.30

3.80

Feb.

a9.0

a30

a!4

alO

a9.0

a8. 5

a£5

a50

a20

a!5

a!2

all

a!3

21.2

13.8

11.1

11.5

54

23.2

17.4

23.6

71

23.7

b!5

13

13.4

13.8

12.6

-

-

~

604.8

21.6

5.24

5.46

Mar.

11.1

10.7

9.93

10.3

12.2

13.0

a25

a!6

a!2

alO

a8.5

all

a!2

a 40

a30

a!7

a!3

all

aid

a50

a25

a!6

a!3

a25

a!6

a!2

*10.3

10.3

12.6

26.4

118

617.33

19.9

4.83

5.57

Apr.

26.9

19.7

62

31.8

20.2

16.9

15.1

13.4

13.0

12.2

12.2

11.5

21.4

14.2

11.9

11.1

11.5

10.3

9.60

9.27

8.63

a8.6

a30

a20

a!4

*11.1

9.60

8.95

9.93

8.63

-

483.61

16.1

3.91

4.36

May

8.00

7.71

7.13

7.13

6.57

6.57

6.57

6.30

F.03

5.77

10.2

19.2

all

a!3

a9.0

a6.5

a5.5

aS.O

4.78

5.26

5.26

4.55

6.03

55.0

14.2

8.00

7.41

9.27

6.85

6.50

a6.0

264.09

8 . 52

2.07

2.39

June

aS.O

a4.2

a3.8

a6.0

alO

6.03

4.33

3.57

3.42

3.29

3.20

5.07

2.97

16.1

14.6

7.41

5.52

6.50

5.52

3.93

3.74

4.33

4.15

5.95

2.22

2.09

2.80

2.6

3.19

5.93

"

151.22

5.04

1.22

1.36

July

3.74

3.39

2.62

2.25

3.21

2.64

2.15

1.97

1.85

1.81

1.77

1.97

2.17

1.70

1.54

1.47

1.47

1.51

1.91

2.48

1.54

1.54

1.62

1.40

1.33

*1.26

1.37

1.29

1.70

1.44

1.26

59.55

1.91

0.464

0.53

Aug.

1.47

1.33

1.23

1.58

1.13

1.13

1.09

1.47

1.44

al.2

al.7

al.8

a2.4

a2.0

al.7

a3.0

aS.O

a3.2

a2.6

aE.5

a6.0

a5.0

a2.8

a2.2

a2.0

a2.6

al.9

al.5

*1.37

2.16

1.33

67.83

2.19

0.532

0.61

Sept.

1.68

3.34

2.76

1.9

1.47

1.40

1.44

1.33

1.19

1.13

1.16

1.19

1.09

1.09

1.40

1.33

1.15

1.09

1.06

1.06

1.09

1.15

1.2

1.02

1.09

1.09

.99

1.06

.93

.93

"

39.77

1.33

0.325

0.56

Calendar year 1950: Max 73 

Water year 1950-51: Max lie

Min 

Min

1.1 

0.93

7.34

9.19

Cfsm 

Cfsm

24.16

30.26

Peak discharge (base, 140 cfs). Hov.

(time unknown) 175 cf;

* Discharge measurement made on this day.

a No gage-height record; discharge comput 

ords for nearby stations.

b Stage-discharge relation affected by ic

6 (12:50 a.m.) 226 cfs (4.17 ft, 

(3.57 ft); Mar. 31 (2 a.m.) 287 cfs (4.66 ft).

nain weir only); Feb. 7
CONNECTICUT RIVER BASIN

pequabuck River at Forestville , Conn.

Drainage area.--45.il sq mi.

Records available.--July 1941 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 137.7 ft above mean sea level, datum of 

T929 (levels by Connecticut State Water Commission).

Average discharge.--10 years, 78.4 cfs (adjusted for storage and diversion).

Extrenes. Maximum discharge during year, 1,970 cfs Feb. 7 (gage height, 5.1 ft, from

floocimark); minimum, 10 cfs Oct. 3, 9 (gage height, 0.76 ft); minimum gage height, 0.73 

ft Sept. 30.

1941-51: Maximum discharge, 3,260 cfs Dec. 31, 1948 (gage height, 6.70 ft), from 

rating curve extended above 1,100 cfs as explained below; minimum, 6.5 cfs Sept. 21, 

22, 1941 (gage height, 0.64 ft).

Flood of September 1938 reached a stage of about 7.3 ft, from floodmarks (discharge, 

3,800 cfs, from rating curve extended above 1,100 cfs on basis of slope-area determination of peak flow and computation of peak flow over dam).

Remarks. Records good. Flow regulated by Whigville Reservoir (see p. 255 ) and mills 

aDove station. Diversion for municipal water supply of city of New Britain from 

Coppermine Brook.

Day

1

^

3

4

t

7

H

9

ll_.

11

12 

13

14

15

1C

17

18

19

2' '

^

°2

23

24

35

C(.

27

23

29

3O

31

Total

Mean

(t)

Oct.

12

13

13

13

13

13

12

11

T3

43

33

24

IS

14

16

17

17

16

16

14

13

18

Id

17

16

16

14

13

16

16

 

520

16.8

+8.0

Nov.

15

T6

*17

40

90

37

2B

24

22

21

19 

17 

19

19

19

19

20

18

15

29

as

37

28

27

216

364

134

34

34

70

-

1,641

54.7

+8.9

62

56

55

134

169

*92

72

297

264

146

162 

S

39

84

91

89

34

75

69

65

62

62

63

70

59

58

56

140

133

126

3.27B

106

L +9 ' 2

Rating tables, water year 1950-51

14£

114

31

106

t.

131

£50

121

106

97

S3

495

542

207

133

131

131

162

182

141

116

146

542

225

*171

250

575

2T39

132

165

157

154

138

_

-

-

,9a3

214

+9 .1

Mar.

124

126

116

124

143

146

168

180

143

119

106

Iu6

llu

259

248

165

136

119

110

347

219

174

149

177

152

12U

116

*110

136

340

315

5,711

Id4

Apr.

331

243

548

762

243

2u4

183

162

154

146

143

133

219

160

138

133

133

119

110

97

36

fli

205

138

ioa

*106

95

39

91

89

-

5,052

168

u*<r

30

77

69

69

69

65

67

65

64

59

37

13E

86

72

64

58

51

48

46

IB

49

49

49

232

122

73

67

75

70

95

61

2,318

74.8

 

June

53

48

44

53

86

56

45

40

39

39

39

37

35

129

rro

72

51

45

45

40

41

43

40

3B

*34

32

3f

35

43

43

-

1,504

50.1

July

37

35

31

29

41

31

23

25

25

27

26

27

28

26

21

23

22

22

26

27

20

JJ?

23

2u

19

*18

Id

20

20

21

19

773

24.9

Aug.

22

22

19

18

M

16

17

20

19

42

32

21

25

21

29

27

42

23

20

*21

84 5"2

32

26

25

25

23

23

21

21

19

336

27 .0

Sept.

56

70

33

27

22

21

21

17

15

17

17

la

17

17

40

18

13

10

22

25

16

15

14

13

18

16

16

18

14

12

-

664

22.1

cfs (5.1 ft); Feb. 18

1,380 cfs (4.20 ft); Apr. 3 (3:30

* Discharge measurement

t Net diversion and change in contents/equivalent in cubic feet per second, at Whigville Res 

voir and Whites Bridge pumping plant; furnished by city of New Britain.
CONNECTICUT RIVER BASIN 243

Records available.--July 1940 t

tremes.--Maximum discharge during year, 2,760 cfs Mar. 31 (gage height, 11.93 ft), minimum, 18 cfs Oct. 4-C (gage height, 1.55 ft).

1946-51: Maximum discharge, 3,440 cfs Dec. 31, 1943 (gage height, 13.55 ft); minimum, 10 cf 5 Aug. 26, 1949 (gage height, 1.42 ft).

Rating table ater year 1950-51,

height, in feet, and discharge, 

Oct. 1 to Mar. 31

cept periods of ice effect (gage 

in cubic feet per second)

Apr. 1 to Sept. 30

166

315

1.6 18 

2.0 46 

2.5 101

Note. Sa 

table above

Discharge, in cubic feet per second, water year October 1350 to September 1951

1

3

4

5

e

7

b

9

in

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

21

20

20

19

18.

IB

19

19

*19

43

56

44

46

36

30

28

26

26

25

24

23

23

24

26

26

25

25

24

24

*24

23

824

26.6

0.439

0.51

23

23

23

28

125

75

52

40

36

33

30

29

28

27

26

26

26

26

26

25

95

75

51

43

95

654

242

154

143

105

~

2,384

79.5

1.31

1.46

87

78

75

*1U6

295

144

110

454

503

247

275

218

156

128

116

113

110

99

84

b75

b73

b73

77

b76

b75

b64

b60

b57

blOO

233

173

4,534

146

2.41

2.78

125

107

114

307

281

173

146

b!25

bl!5

b!05

blOO

103

96

b90

209

236

149

130

134

175

218

b!40

*bllo

541

428

267

173

142

137

bl!5

blOO

5,391

174

2.87

3.31

b!15

236

b!70

134

117

109

481

774

a340

a260

a210

a!85

228

3U5

231

blSO

177

696

434

*325

349

963

50O

335

282

266

269

249

-

-

"

8,925

319

5.26

5.48

206

191

173

171

200

221

266

315

233

187

165

173

181

396

469

315

251

212

137

570

415

315

266

325

315

236

*198

183

213

404

*1,720

9,677

312

5.15

5.94

636

445

1,000

689

455

375

325

288

262

236

252

2eo

370

290

230

200

205

166

158

148

135

129

313

262

198

176

*149

133

129

125

~

8,741

291

4.80

5.36

May

112

108

106

100

97

96

92

87

87

82

116

248

148

114

93

88

81

77

74

72

74

70

67

239

184

112

108

168

114

101

87

3,407

110

1.82

2.10

June

7£

66

62

 8

72

59

56

*53

51

50

50

47

45

128

162

104

85

103

37

£8

57

55

55

58

52

47

46

48

48

58

"

2,016

67.2

1.11

1.24

July

72

75

52

46

62

57

4U

42

38

36

34

38

to 50

42

36

32

*40

48

48

74

50

44

40

35

32

31

29

28

3T

31

28

1,349

43.5

0.718

0.83

Aug.

30

32

2B

28

27

26

24

28

30

38

45

54

31

27

31

52

164

80

58

46

45

80

50

42

38

38

36

34

32

30

28

1,312

42.3

0.698

0.80

Sept.

28

77

a8_5

a65

aid

a35

a35

a34

a30

a28

a28

28

28

26

33

36

32

a26

a25

a25

a26

a27

a27

a24

a25

a26

a25

a23

aZ5

a22

-

994

33.1

0.546

0.61

Calendar year 1950: Max 660 Min 18 Mean 96.8 Cfsm 1.60 In. 21.70

Water year 1950-51: Max 1,720 Min 18 Mean 136 Cfsm 2.24 In. 30.42

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of estimated gage-height graph, recorded range

. stage, weather weather records, records, and records for stations on Burlington Brook near Burlington and Naugatuck

River near Thomaston.

b Stage-discharge relation affected by ic
244 CONNECTIi'UT RWER BAcIN

Location. Lat 41°54 I 41", lung. 73°41'16", uti left bank at Rainbow, Hartford

ft from _tevens Paper Mill, '.4 mile downstream from dam of Farmington River Puwer 

Jo., l.S miles upstream from Foqiionock, u4 miles downstream from t'almon Erook, and 

3 miles upstream from month.

Drainage area.--584 sq mi.

ferent datum.

Average discharge. --35 years, 1,012 cfs (adjusted to present site; adjusted for storage 

and diversion since October 193-i).

Extremes.--Maximum discharge during year, 9,9uu cfs Apr. 1 (gage height, 7.52 ft); minimum daily, 15 cfs Oct. 23.

rj3o-51: Maxim un discharge, 39,JUfi cfs Sept. 33, 1933, by computation of flow over 

Tariffville Dam: maximum gage height, 13.83 ft Jan. 1, 1949; minimum daily discharge, 

5.1 cfs Mar. 5. 1944, Oct. 33, Nov. 11, 1945, Feb. L.L., U47.

Jee Water-supply Paper 891, page 13n, fur peak discharges for some outstanding 

floods.

Remai

1,640

3.:-so

4. £70

6,760

11,000

Discharge, in cubi; feet per second, water year October 195U tj September 1951

99U 

I, SIC

696

4ee

544

464

1,180

Total 

Mean 

(t)

34,137

1,158 

+146

44,686 

1,441 

+ 157

14,993

484

14,177

473

-154

3ted for diversic

Mean 

Cfsm 

In.

237 

0.406 

0.47

1,284 

2.20 

2.46

Calendar year 1950: 

Water year 1950-51:

1,545 

2 . £5 

3.06

1,598 

2.74 

3.16

2,545 

4.36 

4.54

2, 255 

3.66 

4.4E

2,949 

5,05

333 

1.60 

1.84

Observed

Max 7,360 Min 12 Mean 874 

Max 9,4EO Min 15 Mean 1,186

678 

1.16 

1.29

482 

0.825 

0.95

400

0.685 

0.79

319 

0.546 

0.61

Adjusted

Mean 968 Cfsm 1.66 In. 22.54 

Mean 1,258 Cfsm 2.15 In. 29.25

* Discharge measurement made on this day.

t Change in contents in Otis, Barkhamsted, East Branch, Nepaug and whigville Reservoirs and div 

sion from Barkhamsted, Nepaug ani Whigville Reservoirs, and Whites Bridge pumping plant, equivale 

in cubic feet per second; furnished by collins Co., Water Bureau of Hartfort Metropolitan Distric 

Commission, and city of New Britain.
Extremes.--1949-50: Maximum discharge during year, 625 cfs Mar. 9; maximum gage height, 

7.50 ft Mar. d; minimum discharge, 14 cfs Sept. 25.

ly50-51: Maximum discharge during year, 1,600 cfs Mar. 31; maximum gage height, 

9.34 Mar. 31; minimum discharge, 13 cfs Oct. 2; minimum gage height, 1.56 ft Aug. 6.

1936-51: Maximum discharge, 3,600 cfs Sept. 21, 193: (gage height, 12.o ft, adjusted; 13.76 ft, unad lusted). from rating curve extended above l,2G<i cfs on basis of 

records fir North Branch Pan: River at Hartford; minimum, 7.3 cfs Oct. I, 1941 (gate 

height, 1 31 ft); minimum daily, 9.4 cfs Oct. C, 1941.

Flood of Mar. 12 1936, reached a stage of 12.1 ft, as determined ty Hartford city 

engineers from floodmarks.

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

as shown in the following table. They supersede those pu ilished in the water-iiip Ljly 

pai ers indicated.

Remarks .--Records good. Sortie regulation by mills and reservoirs above station.

Revisions (water years).--Revised figures of discharge for water year 1345-50, and 

supplemental oeak discharges for water years 1938-40, 1942-44 superseding those 

lished in Water-Supply Papers 671, 891/971, luul. 1171, are given herein.

Revised peak discharges .--1938-39: Dec. C (2 to 3 p.m.) 9oO cfs; Air. 2 (12 

|?3 0 cf s .

193t-40: Jan. 15 (11 a.m.) 2,43u cfs; Mar. 15 (5 p.m.) 1.23U cfs; Apr. 9

Rating tables, Oct. 1, 1949, to Sept. 30, 1951 (gage height, in feet, -Mid discharge,

in cubic feet per seccnd)

(Stage-discharge relation affected by ice Feb. 20, 21, 26, 27, Mar. 3, 4, 

Dec. 26, 1950, Jan. 8, 9, 31, Feb. 1, 9, 11, 16, 1951. Backwater from 

unknown causes Oct. 28 to Nov. 4, 195O. Shifting-control method used 

Sept. 23, 30, 1950, July 1, 8, 1951)

Oct. 11 tc Mar. 8, 1950, 

July 8, 1951, to Aug. 4, 1951

Note.--Same as following 

table above 4.o ft.

Mar Oct. 1, 1950, to July 3, 1951
CONNECTICUT RIVER BASIN 

South Branch Park River at Hartford, Conn. Continued

Discharge, in cubic feet per second, water year October 1949 to September 1950

Day

1

2

3

4

c,

£

7

a

9

1C

11

12

13

14

15

16

17

ie

19

EO

21

22

23

24

2E

26

27

28

29

31

Total

Mean

Cfsm

In.

Oct.

20

18

*24

25

30

24

22

32

22

24

20

21

22

20

20

18

19

21

22

22

23

21

20

20

23

63

24

21

20

13

35

734

23.7

0.584

0.67

Nov .

25

26

23

22

21

20

21

23

23

40

25

21

19

5126"

24

22

22

21

20

20

22

22

21

31

24

20

22

44

35

-

756

25.2

0.621

0.69

Dec.

28

*26

28

27

30

29

25

24

23

2JL

22

36

139

74

41

27

25

22

32

32

32

30

38

3fi

24

22

101

73

55

46

44

1,212

39.1

0.963

1.11

Jan.

32

32

51

37

68

~5T 139

44

70

89

52

51

63

54

59

56

74

67

51

40

34

41

67

82

68

75

55

61

80

1,855

59.8

1.47

1.70

Feb.

60

65

74

45_

57

51

112

*131

85

75

74

107

139

124

100

88

83

72

57

64

68

49

52

51

_

-

2,131

76.1

1.87

1.95

Mar.

*51

51

46

42

40

59

57

111

376

81

81

95

88

86

88

79

70

75

88

98

288

233

142

115

127

162

170

142

108

3,457

112

2 . 76

3.18

Apr.

95

88

91

84

88

91

72

67

53

56

58

57

60

88

79

58

58

59

56

lie

118

69

53

59

61

115

100

98

93

84

-

2,324

77.5

1.91

2.13

May

114

*I52~

81

73

84

77

67

66

51

52

49

46

38

33

34

36

36

38

71

86

59

51

49

68

95

108

77

es

84

33

74

2,055

66.3

1.63

1.88

June

126

160

84

171

TTf

79

63

54

51

48

38

35

35

44

57

38

101

76

67

46

72

50

42

48

60

49

35

30

30

29_

-

1,937

64.6

1.59

1.77

July

27

24

32

31

32

47

*28

26

23

42

124

114

107

72

35

30

30

33

30

41

36

26

23

26

27

25

26

25

26

21

2?

1,211

39.1

Aug.

29

27

32

28

22

20

*21

25

26

22

22

20

18

18

21

22

36

22

26

227

112

40

31

28

26

25

21

22

30

32

*34

1,085

35.0

0.963 0.862

1.11 0.99

Sept.

27

24

32

24

26

27

23

23

22

20

26

28

24

38

2T

21

18

19

20

21

20

19

18

1516"

17

17

17

17

15

-

658

21.3

0.539

0.60

Calendar year 1949; Max 670 

Water year 1949-50: Max 376

Lay

1

I,

 i

5

i.

1

B

9

10

11

12

13

14

15

16

17

18

19

2u

21

22

23

C4

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1±

15

17

18

*19

20

20

21

25

6_7_

27

61

33

21

17

17

19

20

21

21

20

18

24

23

23

24

27

25

23

25

28

753

24.3

0.599

0.69

Nc\ .

27

26

25

50

90

46

36

23

28

28

25

22

24

27

30

*32

34

29

23

36

149

54

31

27

132

388

139

98

93

64

-

1,842

61.4

1.51

1.68

L^.

54

48

48

110

182

*82

64

114

139

72

126

98

82

72

68

80

70

63

59

56

53

52

46

51

53

4445"

44

124

161

90

2,450

79 .0

1.95

2.25

Jan. Feb.

60 85

54

87

159

106

72

60

57

53

56

55

58

46

34

23T

192

*93

80

87

90

90

87

60

225

227

127

98

82

98

82

56

2,968

95.7

2.36

2.72

225

112

90

93

*77

364

707

240

139

115

130

145

170

136

110

112

454

240

173

192

470

*259

180

145

145

133

127

-

_

-

5,568

199

4.90

5.10

Mar.

118

121

112

124

*170

166

148

133

115

93

64

77

141

176

106

87

72

74

291

190

133

112

127

109

90

77

72

82

176

988

4,612

149

3.67

4.23

Apr.

286

209

466

322

220

*173

139

124

121

109

106

98

139

109

93

90

75

60

56

55

48

44

llff

80

59

60

56

50

56

62

-

3,675

122

3.00

3.35

May

52

40

*35

34

29

27

31

33

30

31

67

103

54

46

34

29

27

27

26

25.

26

28

29

209 109"

45

54

98

58

56

52

1,544

49.8

1.23

1.42

June

40

34

26

42

*85

38

29

27

24

22

22

24

23

91

88

42

34

60

38

27

29

24

23

22

22

23

28

26

38

30

-

1,081

36.0

0.887

0.99

July

24

27

23

20

46_

23

21

19

21

23

23

23

24

21

20

*20

21

22

30

29

21

19

20

20

20

19

19

20

24

23

21

706

22.8

0.562

0.65

Aug.

25

22

22

24

18

*19

21

25

24

29

33

23

29

25

36

43

go

37

21

20

42

60

26

25

28

22

23

24

24

24

24

876

28.3

0.697

0.80

Sept.

55

52

27

28

31

28

*27

23

21

22

24

25

24

24

55.

26

23

24

24

24

29

28

28

29

36

31

30

31

29

28

-

886

29.5

0.727

0.81

ralendar year 19 50 : Max 376 mn 14 Mean 59.6 Cfsm 1.47 In. 13.93

Water year 1950-51 : Max 938 Min 14 Mean 73.9 Cfsm 1.82 In. 24.69

Peak discharge ("base, 500 ofs). Nov. 26 (1:30 a.m.) 610 cfs (7.56 ft at 4-.30 a.m.): Feb. 

(12 p.m.) 1,300 cfs (9.36 ft at 2:30 a.m. Feb. 8); Feb. 18 (7 a.m.) 610 cfs (7.61 ft at 10 

.) 570 cfs (7.48 ft at 11 a.m.); Mar. 31 (6:30 a.m.) 1,600 cfs (9.84 ft at 9 

fs (7.81 ft at 4 p.m.). 

t made on this day.

Feb.

Apr. 3 (1:30 p.m.) 680 

* Discharge measurem
CONNECTICUT RIVER BASIN 247

North Branch Park River at Hartford, Conn.

Location.--Lat 41<> 47 I 03", long. 72°42'3l", on right bank 60 ft downstream from stonearch bridge on Albany Avenue, Hartford, Hartford County, and 3 miles upstream from

confluence with South Branch. 

Drainage area.--25.3 sq mi.

Records available.--October 1936 to September 1951. 

Gage.--Water-stage recorder and masonry control. Datum of gage is 34.20 ft above mean

sea level, datum of 1929 (levels by Department of Engineering, city of Hartford). 

Average discharge.--15 years, 34.8 cfs. 

Extremes.--Maximum discharge during year, 1,750 cfs Mar. 31; maximum gage height, 3.80

ft Mar. 31; minimum discharge, 1.2 cfs July 17 (gage height, 0.87 ft); minimum daily

discharge, 1.3 cfs Oct. 4, 5.

1936-51: Maximum discharge, 3,000 cfs (revised), Jan. 25, 1938 (gage height, 11.6

ft), from rating curve extended above 1,600 cfs by logarithmic plotting; minimum,

0.04 cfs Sept. 24, 25, 1943 (gage height, 0.75 ft); minimum daily discharge, 0.04 cfs

Sept. 24, 1943.

Flood of Mar. 12, 1936, reached a stage of 11.2 ft as determined from floodmarks

by city engineers of Hartford (discharge, about 2,800 cfs, revised).

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

as shown in the following table:

Water-Supply 

Paper

821........ 

851........

871. .......

121

951........

971. .......

1001........

1031........

1141. .......

1171. .......

Water 

year

1936-37 

1937-38

1938-39 

19^9-40

1941-42

1942-43

1943-44

1944-45

1947-46

1948-49

1949-50

Date

Dec. 20 

Jan. 25

Dec . 6 

May 31

Feb. e

Mar. 9

Dec. 30

Apr. 25

Apr. 26

Nov. 12

Dec. 31

Mar. 9

Gage -height 

(feet)

6.25 

11.6

t?.6 

8.17

b8.98

6.03

8.14

4.74

3.16

5.78

4.65

7.33

6.69

b7.58

Discharge 

(cfs)

900 

3,000

1,100 

1,460

950

850

1.3bO

560

1,500

735

545

1,160

1,010

900

t Occurred on Feb. 15 (backwater from ice), 

b Backwater from ice.

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

TTorne regulation by mills upstream and by storage and diversion at Hartford watersupply reservoirs above station.

Revisions (water years) .--W S'Jl: 1059. Discharge figures for water-years 1937-38, 1939- 

40, 1942-43, 1944-45, and 1949-50 are revised herein and supersede those published in 

Water-Supply Papers 851, 871, 891, 921, 971, 1031, and 1051.

i Day 

(water year)

1937-38 

Jan. 25. ......

20 .......

21... .

22.. .....

23. ......

1939-40

17. ......

Discharge

(=f<0

1,700

180

Day 

(water year)

1939-40 

May 31. ......

1942 43

1949 50

Mar. 9 .......

Discharge 

(cfs)

628

757

525

evlsed peak discharges.--L957-58: Nov. 14 (6 a.m.) 

_cfs; Nov. 29 (l_a.m.) 1,310 efs; Jan. 25 (2 p.m.)

5,000 cfs; July 20 (3:30 p.m.) 755 cfs; July 22 (6:30 

a.m.) 680 cfs; Sept. 21 (10 p.m.) 2,170 cfs.

1938-39: Dec. 6 (12:30 p.m.) 1,100 cfs.

1939-40: Jan. 15 (9 a.m.) 1,040 cfs; Mar. 31 (6 a.m.) 

680 cfs; Apr. 9 (3 a.m.) 1,040 cfs; Hay 31 (8 p.m.) 1,460 

cfs .

1941-42: Mar. 9 (2:30 p.m.) 850 cfs; Mar. 22 (9 a.m.) 

775 cfs .

1942-43: Nov. 25 (9 p.m.) 925 cfs; Dec. 2 (10 a.m.) 

755 cfs; Dec. 30 (10 p.m.) 1,380 cf= .

1944-45: Nov. 30 (3:30 p.m.) 800 cfs; Jan. 1 (12 p.m.) 

1,010 efs; Apr. 26 (4:30 a.m.) 1,500 cfs.

1945-46: Dec. 7 (4 p.m.) 755 efs; Dec. 26 (10 p.m.) 

735 cfs.

1946-47: Apr. 5 (11 p.m.) 545 cfa.

1947-48: Nov. 12 (3 p.m.) 1,160 cfs; Mar. 16 (12 p.m.) 

925 cfs; Mar. 20 (6 a.m.) 635 cfs; Apr. 1 (7 p.m.) 515 

cfs.

1948-49: Dec. 31 (4:30 p.m.) 1,010 cfs; Jan. e (11:30 

a.m.) 800 cfs.

1949-50; Mar. 9 (5 a.m.) 900 ffs.
CONNECTICUT RIVER EA3IN 

North Branch Park River at Hartford, iVmn. --Continued

Revised figures monthly discharge 

1942-45,

in cubic feet per se 

1949-50

:ond, 1937-40,

Month

Water year 1937-38.. 

Calendar year 1938..

March 1940. ...........

Water year 1939-40.. 

Calendar year 1940..

Calendar year 1942 . . 

Water year 1942-43..

January 1945. .........

Water year 1944-45. . 

Calendar year 1945..

Water year 1949-50. .

Cfs-days

22,168.5 

21,781.1

14,824.8 

15,684.45

2 952

15,210.3 

15,982.86

13,630.1 

15,321.4

7,784.4

Maximum

1,880 

1,880

650 

650

737 

737

741 

741

525

525

Minimum

3.3 

3.3

1.5 

0.4

2.0 

.04

2.0 

2.1

1.0

Mean

13°

60.7 

59.7

40.5 

42.9

41.7 

43.8

37.3 

42.0

21.3

mile

2.40 

2.36

1.60 

1.70

1.65 

1.73

1.47 

1.66

.842

Runoff in 

inches

32.61 

32.04

5.33

21.78 

23.05

22.37

23.48

20.02 

22.50

3 74

11.46

water year October 1950 to September 1951

L'B/

1

3

4

c

7

6

-,

lu

12

13

14

15

If

17

18

19

20

21

22

23

24

25

26

27

29

30

31

^ota]

Mean

Cfsir

In.

on.

1.6

1.5

1.4

1.3

*1.3

1.3

1 .3

1,5

1,7

R .2

10 

12

7,8

4,8

3,8

3 , 5

3,2

3.2

2,9

2.7

2.5

2.8

3.7

3.6

3 , "

2.9

2.6

3.0

2.8

2 .7

113.8

3.67

0.145

0.17

llov .

2 .4

2 .5

2 .8

4 .9

34

18

9 .3

7.5

6.1

5.2 

4.9

4.7 

4.3

4.1

3.9

*3.7

3 .9

3.9

3.F

4.4

6.1

28

14

10

£4

342

80

46

45

25

-

794.2

2F .5

1.05

1.17

Dee.

18

15

15

62

152

*41

2E

99

147

52

102

64 

35

25

21

24

35

26

b!5

12

8.7

8.1

8.1

10

15

9 .3

9.0

7.8

41

113

66

1,281.6

41.3

1 .63

1 .88

Jan.

34

23

39

152

75

34

b27

b24

b21

b20 

b!8

b!8 

b20

b20

bieo

154

*62

42

52

76

80

b40

17

207

144

69

b50

b30

29

27

11

1,781

57 .5

2 . 27

2.62

Feb.

22

148

68

41

31

*25

415

623

260

b76 

44

38 

79

105

64

45

44

547

99

86

1O9

476

162

b75

b58

57

61

57

_

-

-

3,91E

140

5.53

5.76

Mar.

46

44

48

48

*95

95

85

72

55

43

36

33

31

105

90

70

50

43

38

230

150

85

78

85

72

45

38

36

38

150

1 . 050

3,184

103

4.07

4.69

Apr.

194

93

471

220

96

*72

57

48

43

41

40

40 

72

56

40

31

56

30

26

26

20

19

67

56

36

34

25

20

18

18

-

2,045

68.2

2.70

3.01

May

15

14

*12

11

11

10

9.8

9.6

9.5

9.4 

25

65

30

20

15

12

10

9.0

8.7

8.5

8.2

8.0

7.5

70

llL

23

18

47

25

17

13

626.2

20.2

0.798

0.92

Calendar year I95u: Max 52E Min 1.3 Mean 26.0 Cfsr

June

10

8.0

7.5

9.9

30

17

11

*7 .1

6.0

5.6 

5.0

4.9 

4.8

24

54

23

17

60

21

15

10

8.2

7.1

8.5

6.4

6.3

6.9

12

10

8.0

-

430.2

14.3

0.565

0 . 63

July

6.5

5.2

4.5

4.0

4.3

fi.2

5.0

4.0

3.0

2.0

1.8 

1.7

1 .6

1.5

*1 .4

1.4

1.4

7.3

20.

6.0

4.4

3.9

3.5

2.7

2.2

1.8

1.7

2.3

2.7

2.2

118.5

3.82

0.151

0.17

Aug.

2.2

2 .3

2.3

2.4

3.0

*1.7

i.e

1.9

2.0

3.0

2.5 

2 .2

1.9

1.8

5.8

30

20

10

5.0

6.5

18

7.0

4.5

4..0

3.5

3.2

3.0

2 .8

2.7

2.5

161.8

5.22

0.206

0.24

Sept.

3.1

14

8.5

5.0

4.0

*3.0

3.5

2.7

2.3

2.1

2.0

1.9 

1.9

1.8

4.8

12

5.5

4.1

3.5

3.0

2.6

2.5

2.7

2.5

2.5

2.5

2.6

2.4

2.4

2.2

-

113.6

3.79

0 . 150

0.17

l 1.03 In. 13.97

Water year 1950-51: Max 1,050 Min 1.3 Mean 39.9 Cfsm 1.58 In. 21.43

Peak discharge (base, 575 cfs (4.79 ft 

. ., 825 cfs (6.30 ft 

i) 1,760 cfs (8.80 ft); Apr.

p.m.) 1,620 cfs (8.14 ft at 11 f 

605 cfs (5.04 ft at 9 a.m.); Mai 

(5.56 ft at 5 p.m.) .

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Hotp.--No gage-height record Nov. 14, 15, Mar. 6-30, May 4-2P, June 29 to Ji 

5, Sept. 9-12; discharge estimated on basis of recorded range in stage, weathi 

for Park River at Hartford.

.): Feb. 7 (8:30

10 a.m.); Feb. 22 (7 ajn.)

(l p.m.) 770 cfs
CONNECTICUT RIVER BASIN 

Park River at Hartford, Conn.

249

Location.--Lat 41°45'36", long. 72°41 I 42", on left bank at downstream side of plategirder footbridge on Riverside Street in Hartford, Hartford County, 1,300 ft downstream from confluence of North and South "Branches, 1,300 ft upstream from Capitol 

Avenue Bridge, 0.9 mile upstream from inlet of Park River oonduit, and 2.0 miles upstream from mouth.

Drainage area. 74.0 sq rn.t.

Records available.--October 1936 to September 1951.

Gage.--Watsr-atage recorder above spillway of timber dam. Datum of gage is 27.13 ft

above mean sea level, datum of 1929 (levels by Department of Engineering, city of Hartford ).

Average discharge.--15 years, 113 cfs.

Extremes.--MaxImum discharge during year, 2,880 cfs Mar. 31 (gage height, 7.17 ft); minimum, 17 cfs Oct. 1, 2; minimum gage height, 2.33 ft Aug. 6; minimum daily discharge, 

17 cfs Oct. 2.

1936-51: Maximum discharge, 5,650 cfs Jan. 25, 1938 (gage height, 9.16 ft); minimum, about 4 cfs Sept. 23, 1937; minimum gage height, 1.58 ft July 23, Aug. 15, 1943, 

result of temporary diversions upstream; minimum daily discharge, 11 cfs Oct. 6, 1941. 

Flood of Mar. 12, 1936, reached a stage of 9.0 ft, as determined from floodmarks by 

city engineers of Hartford (discharge, 5,400 cfs). A stage of 10.7 ft, from floodmarks, 

was caused Mar. 21, 1936 (backwater from Connecticut River).

Remarks.--Records good except those for period of doubtful gage-height record, which are 

fair. Some regulation by mills above station and by storage and diversion at Hartford 

water-supply reservoirs on small headwater streams.

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.

Oct.

18

17

21

23

*23

23

25

26

28

85_

60

85

55

37

25

23

26

28

28

26

26

25

28

32

30

30

30

30

30

30

34

1,007

32.5

0.439

0.51

Nov.

32

3o~ 30

54

152

73

56

42

40

38

36

34

32

34

36

*38

40

36

34

47

236

105

63

48

158

753

264

156

163

105

-

2,965

98.8

1.34

1.50

Dec.

82

73

70

143

359

*142

96

178

311

142

226

184

128

105

96

109

115

96

82

73

68

66

63

68

79

60

58

58

142

303

180

3,955

128

1.73

1.99

Jan.

109

85

122

303

216

122

99

93

90

85

82

85

76

63

3IT

426 *177

135

146

180

188

132

88

336

496

230

164

130

146

133

91

5,139

166

2.24

2.58

Feb.

128

398

230

150

136

*120

d720

*dl,450

d515

d260

d!60

dlSO

d240

d320

d240

175

165

953

453

280

290

1,060

511

284

219

215

208

197

-

_

-

10,257

366

4.95

5.16

Mar.

175

175

175

182

*265

292

265

238

189

153

TSo" 107

110

208

380

208

153

130

123

610

404

246

215

238

208

153

126

120

133

297

2,140

8,538

275

3.72

4.29

Apr.

673

363

937

773

394

292

238

208

*193

178

175

164

242

200

160

150

136

110

98

91

79

206" 71

178

123

116

101

88

88

94

-

6,921

231

3.12

3.48

May

79

63

*55

50

48

44

46

48

44

44

94

193

107

77

60

50

46

41

39

3_7

37

39

39

326

23?

91

84

175

107

91

79

2,565

82.7

1.12

 1.29

June

63

53

41

74

*130

68

46

39

37

3C>

30

32

30

124

168

88

75

143

79

50

48

41

34

34

32

32

41

41

50

46

-

1,799

60.0

0.811

0.90

July

37

37

32

26

§1

37

32

28

26

28

28

28

30

26

25

*2323"

25

39

60

34

26

26

25

25

23

23

25

30

26

25

940

30.3

0.409

0.47

Aug.

30

26

30

30

23

*2253"

29

29

34

45

29

36

32

38

67

94

85

41

29

62

93

43

34

36

27

27

29

29

29

29

1,210

39.0

0.527

0.61

Sept.

65

43- 83

38

45

*36

36

34

27

27

29

29

29

29

72

54

34

32

32

32

34

34

34

34

43

41

38

38

36

34

-

1,172

39.1

0.528

0.59

Calendar year 195O: Max 943 Kin 17 Mean 94.3 Cfsm 1.27 In. -17.29

Water year 195O-51: Max 2,140 Kin 17 Mean 127 Cfsm 1.72 In. 23.37

Peak discharge (base, 1,OOO cfs). 

2,240 cfs (6.4 ft); Feb. 18 (12:30 p 

Mar, 20 (4:30 p.m.) 1,210 cfs (4.94

Nov. 26 (9 a.m.) 1,040 cfs (4.75 ft); Feb. 7 (about 12 p.m.) 

m.) 1,280 cfs (5.03 ft); Feb. 22 (l2 m.) 1,280 cfs (5.03 ft); 

~t); Mar. 31 (9:30 a.m.) 2,880 cfs (7.17 ft); Apr. 3 (7 p.m.)

1,520 cfs (5.42 ft) .

* Discharge measurement made on this day.

graph based

288890 O - 54 - 1 7
CONNECTICUT RIVER BASIN

Hockanum River near East Hartford, Conn.

'", long. 72°35'16", on left bank 700 ft downstream from dam a 

iase Bros. Inc. paper mill, if miles downstream from Hop Brook, and 2$ miles east

Location.-- La t 41°46'59"

. .

East Hartford, Hartford County. 

Drainage area. --74. 5 sq mi. 

Records 

G

of

of 192

minimum,

Liraiuage area.--eg.o sq mi.

Records available.--September 1919 to September 1921, July 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 54.5 ft above mean sea level, datum

("levels by Department of Engineering, city of Hartford). 

Average discharge.--25 years, 112 efs (adjusted). 

Extremes.--Maximum discharge during year, 1,000 cfs Feb. 8 (gage height, 6.25 ft);

14 cfs June 24 (gage height, 0.95 ft); minimum daily, 25 cfs Oct. 8.

1919-21, 1928-51: Maximum discharge, 5,160 cfs Sept. 21, 1938 (gage height, 13.78

ft, from floodmark), by computation of flow over dam just above gage; practically no

flow at times; minimum daily, 1.2 cfs Sept. 2, 1920.

Revisions. Revised figures of maximum discharge for some water years are shown in

the following table. They supersede those published in the water-supply paper

indicated.

Water-Supply 

Paper

501.........

681.........

1001. ........

Water 

year

1919-20

1928-29

1943-44

Date

Mar. 13

Feb. 7

Sept. 15

Gage height 

(feet)

8.1

6.6

6.62

Discharge 

(cfs)

1,860

1,190

1,020

Revised figures of minimum discharge for some water years are shown in the following 

table. They supersede those published in the water-supply paper indicated.

Water-Supply 

Paper

711. ........

726. ........

741.........

756. ........

Water 

year

1930-31

1931-32

1932-33

1933-34

Date

Oct. 6

Gage height 

(feet)

0.67

.78

.80

.70

Discharge 

(cfs)

2.6

7.5

7.5

3.5

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

Flow regulated by Shenipsit Lake (see p. 255 ), other small reservoirs and industrial

plants above station. 

Revisions (water years) .--W 731: Drainage area. W 851: 1934 (M). W 1051: 1920-21 and

1928-45 (monthly and yearly discharge and runoff). Revised figures of discharge for

the water years 1931 and 1944, superseding those published in Water-Supply Papers 711,

726, 801, and 1051, are given herewith.

Day 

(water 

year)

1930-31

Dec. 1

2

3

4

5

6

7

8

9

10

11

12

13

15

16

17

18

19

20

21

22

23

24

25

26

27

29

30

31

Jan. 1

Discharge 

(efs)

52

78

82

29

17

13

6.1

47

60

62

25

19

9.5

37

45

45

20

13

16

7.9

37

50

34

7.9

18

15

32

40

44

30

Day 

(water 

year)

1930-31

Jan. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

1943-44

June 25

26

27

28

29

30

July 1

Z

3

4

Discharge 

(cfs)

26

27

15

83

92

68

29

22

27

16

46

55

53

35

29

43

16

103

550

303

165

130

120

117

112

52

45

44

Day 

(water 

year)

1943-44

July 5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Aug. 1

2

3

Discharge 

(cfs)

64

43

98

109

46

42

55

69

71

67

77

44

52

55

54

64

68

67

43

40

47

51

58

76

71

45

43

52

55

67

Day 

(water 

year)

1943-44

Aug. 4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Sept. i

2

Discharge 

(cfs)

60

56

43

60

50

62

66

66

64

52

50

46

46

47

52

64

50

47

60

67

49

47

48

47

45

44

45

46

46

45

Day 

(water 

year)

1943-44

Sept. 3

4

5

6

7

8

9

10

11

12

13

14

15

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Discharge 

(cfs)

44

42

35

30

31

34

46

36

32

34

82

236

732

79

100

74

92

71

130

116

44

44

52

53

63

69

101
CONNECTICUT RIVER BASIN 

Hockanum Rivpr npar East Hartford, Cunn. Continued

251

Month

Calendar year 1930...

Water year 1930-31 . . . 

Calendar year 1931 . . .

July...................

Water year 1943-44. .. 

Calendar year 1944 . . .

Observed

Cf s-days

980.8 

21,799.2

1,314 

26,561.7 

28,473.4

3,115 

1,872 

1,653 

2,855 

27,276 

31,981

Maximum

82 

282

103 

303 

303

550 

112 

67 

732 

732 

732

Minimum

6.1 

5.9

15 

6.1 

8.4

45

40 

43

30

24 

25

Mean

31.6 

59.7

42.4 

72.8 

78.0

104 

60.4 

53.3 

95.2 

74.5 

87.4

Change in 

contents in 

Shenipsit Lake 

(millions of 

cubic feet)

0 

+64.6

+5.1 

-10.2 

-76.2

+32.5 

-54.5 

-64.7 

-5.5

+115.1 

+117.4

Adjusted

Mean

31.6 

61.7

44.3 

72.5 

75.6

L16 

40.1 

29.1 

93.1 

78.1 

91.1

Per 

square 

mile

0.424 

.828

.595 

.973 

1.01

1.56 

.538 

.391 

1.25

1.05 

1.22

Runoff 

in 

inches

0.49 

11.26

.69 

13.20 

13.78

1.74 

.62 

.45

1.40 

14.28 

16.65

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

and discharge, in cubic feet per second)

1.2 

1.6 

2.0 

2.5

104

168

3.0 

4.0 

5.5

244

430

775

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

(t)

Oct.

31

40

68

62

105

102

46

25

26

26

29

59

94

72

44

47

53

57

57

56

51

44

43

55

54

53

53

50

40

*40

55

1,635

52.7

-14.3

Nov.

52

50

53

62

96

64

61

62

60

59

60

41

43

50

55

57

56

52

40

49

103

83

60

50

94

409

204

142

*111

90

-

2,468

82.3

+9.4

Dec.

76

70

73

114

271

165

131

131

151

120

122

166

112

133

151

65

47

143

89

113

99

107

43

33

71

136

81

71

168

205

82

3,539

114

+17.4

Jan.

98

160

148

194

184

68

82

172

133

94

128

142

52

M

274

333

210

183

175

72

79

170

*142

194

275

218

185

79

182

152

133

4,745

153

+18.7

Feb.

133

348

282

119

190

147

259

7£7

367

248

204

261

291

296

253

219

207

406

353

252

260

510

430

293

222

295

*248

234

_

_

-

8,074

288

+17.2

Mar.

228

243

235

118

239

218

215

213

144

243

92

201

136

200

276

245

212

104

214

243

248

224

*160

231

225

251

208

138

188

218

264

6,874

222

+16.3

Apr.

520

440

641

662

500

430

370

254

320

293

214

224

249

247

152

245

235

180

174

183

178

78

241

226

195

188

197

172

77

162

-

8,247

275

-9.0

May

146

*136

133

133

133

58

56

151

130

105

128

190

67

145

130

126

90

135

53

35

135

128

32

212

255

174

74

180

170

60

135

3,973

125

-2.5

June

92

39

52

140

146

128

85

1O3

41

_28

103

82

79

139

148

61

44

134

132

80

*78

116

54

30

98

79

74

76

95

47

-

2,583

86.1

-15.0

July

40

51

68

43

47

60

60

52

82

75

72

71

109

41

54

46

58

62

59

108

40

54

44

60

69

71

68

56

33

44

*62

1,797

58.0

-19.1

Aug.

74

74

75

46

5_i

56

64

64

67

81

54

44

73

97

84

122

107

270

100

95

95

90

85

105

55

35

70

75

80

75

*90

2,533

81.7

0

Sept.

47

40

38

50

66

108

78

39

35

40

53

60

60

60

*38

34

55

64

62

67

102

42

29

38

62

64

62

59

32

2_8

-

1,612

53.7

-18.4

Adjusted for change in Shenipsit Lake contents

Mean 

Cfsm 

In.

38.4 

0.515 

0.59

91.7 

1.23

1.37

Calendar year 1950; 

Water year 1950-51:

131 

1.76 

2.05

172 

2.51 

2.66

505 

4.09 

4.26

258 

3.19 

3.68

266 

3.57 

3.98

122 

1.64 

1.89

Observed

Max 410 Min 16 Mean 90.0 

Max 764 Min 25 Mean 151

71.1 

0.954 

1.06

38.9 

0.522

0.60

81.7

1.10 

1.27

35.3

0.474 

0. 53

Adjusted

Mean 95.7 Cfsm 1.26 In. 17.07 

Mean 151 Cfsm 1.76 In. 25.92

Peak discharge (base. 900 cfs).--Feb. 8 (5 a.m.) 1,000 cfs (6.25 ft); Mar. 31 (10 a.m.) 970 cfs 

(6.16 ft).

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Shenipsit Lake; furnished by Hockville Water & Aqueduct Co.

Note. No gage-height record Aug. 18-30; discharge estimated on basis of recorded range In stage, 

weather records, and records for Scantic River near Broad Brook.
252 CONNECTICUT RIVER BASIN

Salmon River near East Hampton, Conn.

Location. Lat 41°33'il", long. 72°26'57", on right bank at Comstock Bridge, on HartfordMiddlesex county line, 0.6 mile downstream from Dickinson Creek, and 3| miles southeast of East Hampton, Middlesex County.

Drainage area. 105 sq mi.

Records available . July 1928 to September 1951.

Gage. Water-stage recorder. Datum of gage is 69.50 ft above mean sea level, datum of

 T:9

Average discharge.--23 years (1928-51), 173 cfs.

Extremes. Maximum discharge during year, 3,080 cfs Feb. 7 (gage height, 4.80 ft); minimum, 8 cfs Sept. 14, IS (gage height, 0.54 ft); minimum daily, 9 cfs Sept. 12-14.

1928-51: Maximum discharge, 12,400 cfs Sept. 21, 1938 (gage height, 10.96 ft), by 

computation of flow over dam half a mile upstream; minimum, 1.0 cfs Oct. 31, 1935 

(gage height, -0.17 ft); minimum daily, about 1 cfs Oct. 13, 1929.

Revision. The maximum discharge for the water year 1929 has been revised to 2,810 

cfs Mar. 5, 1929 (gage height, 4.4 ft), superseding figure published in Water-Supply 

Paper 681.

Remarks.--Records good. Occasional regulation at low flow by mills above station.

Revisions.--Revised figures of discharge, in cubic feet per second, for high-water periods 

in the water year 1929, superseding those published in Vater-Supply Paper 681, are 

cjiven herewith:

Month

Water year 1928-29....

Cfs-days

67,495

Maximum

2,140

Minimum

93

14

Mean

185

Per square 

mile

1.76

Runoff in

Inches

23.91

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

184

370

1,020

2,040

bir feet per second, water year October 1950 to September 1951

Day

1

2

Oc t .

15

14

3 ! 14

4 : 14

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsro

In.

14

14

14

14

15

26

38

48

67

45

35

29

28

27

27

27

26

26

29

35

33

32

28

27

27

27

27

842

27.2

0.259

0.30

Nov.

26

26

*26

37

171

133

78

58

48

44

38

35

33

32

30

30

32

32

29

32

244

193

111

78

152

882

*432

266

206

164

-

3,698

123

1.17

1.30

Der.

138

120

111

308

706

366

241

255

309

245

232

222

190

164

151

178

184

156

b!20

b!05

blOO

b95

b90

blOO

b!05

b95

b90

b85

b250

440

379

6,330

204

1.94

2.24

Jan.

297

225

215

305

259

206

190

178

148

b!30

*b!25

b!20

bl!5

bllo

655

651

356

274

266

274

255

190

b!55

587

698

406

b275

b220

b!90

b!70

b!50

8,395

271

2.58

2.97

Feb.

b260

834

455

b300

b255

238

716

2,000

684

406

b350

338

*370

406

334

b260

b250

1-.070

694

465

432

1,230

762

482

392

361

338

309

_

-

-

14,991

535

5.10

5.31

11 ar.

*285

289

301

317

402

374

321

297

263

232

215

215

206

422

598

392

305

266

238

706

624

450

*402

465

392

313

270

255

266

371

L.B50

12,282

396

3.77

4.35

Apr.

842

550

l._650

1,210

682

520

440

392

361

334

325

309

356

321

278

255

274

245

228

222

203

190

497

450

309

263

232

209

215

206

-

12,568

419

3.99

4.45

May

178

*164

151

143

138

133

125

123

116

123

216

406

259

181

148

123

106

99

99

99

102

93

88

425

418

241

254

415

266

203

162

5,797

187

1.78

2.05

June

130

108

99

99

130

113

91

74

69

63

62

58

53

108

167

125

93

148

*123

80

63

55

56

67

51

12

40

44

45

67

-

2,521

84.0

0.800

0.89

July

60

50

40

34

11

56

41

32

28

24

22

20

22

21

19

17

16

15

19

27

21

18

24

22

18

15

*12

13

22

22

17

838

27.0

0.257

0.30

Aug.

20

26

19

21

17

14

12

13

14

15

14

13

13

12

11

21

37

42

32

24

24

24

20

17

15

14

12

13

12

11

10

562

18.1

0.172

0.20

Sept.

18

35

30

24

18

15

15

14

12

11

10

9

9

9

10

14

14

11

10

10

10

11

19

22

18

17

15

14

12

12

-

448

14.9

0 . 142

0.1G

Calendar year 1950: Max 882 Min 11 Mean 134 Cfsm 1.28 In. 17.35

Water year 1950-51: Max 2,000 Min 9 Mean 190 Cfsm 1.81 In. 24.52

Peak discharge (base. 1.500 cfs).--Feb. 7 (12 p.m.) 3,080 cfs (4.80 ft); Feb. 18 (9 a.m.) 1,310 

cfs (3.32 ft); Feb. 22 (10 a.m.) 1,460 cfs (3.47 ft); Mar. 31 (7 a.m.) 2,480 ofs (4.33 ft); Apr. 3 

(2 to 3 p.m.) 2,540 cfs (4.40 ft).

* Discharge measurement made on this day.

t Stage-discharge relation affected by ice.
CONNECTICUT RIVER BASIN 

East Branch Eightmile River near North Lyme, Conn.

253

Location.--Lat 41°25'40", long. 72°20'05", on left bank at highway bridge on Connecticut 

Highway 156, 0.4 mile upstream from confluence with West Branch, 1.1 miles north of 

North Lyme, New London County, 1.2 miles south of North Plain, and 5-j miles upstream 

from mouth of Eightmile River.

Drainage area.--22.0 sq mi.

Records available. September 1937 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 55.21 ft above mean sea level, datum of T929

Average discharge.--14 years, 43.3 cfs.

Extremes.--Maximum discharge during year, 610 cfs Apr. 3 (gage height, 3.89 ft); minimum,

 1.3 cfs Sept. 22 (gage height, 0.20 ft).

1937-51: Maximum discharge, 2,950 cfs Sept. 21, 1938 (gage height, 7.00 ft), computed on basis of study of flow at contracted-control section; no flow Sept. 3, 1938, 

result of regulation; minimum daily, about 0.03 cfs Oct. 2, 1941.

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

from leaves on control, which are fair. Slight regulation at low flow.

Rating tables, water year 1950-51, except periods of backwater from leaves 

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

Oct. 1 to Feb. 8

0.2 

.3

1.0

1.3 

3.8

11

23

50

1.5 102

2.0 175

3.0 410

3.2 470

Feb. 8 to Sept. 30

l.b 102 2.5 233 

2.0 162 3.2 380

Note.--Same as preceding 

table below 1.5 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.

Oct.

i^

3.5

3.5 

3.5

3.8

3.8

3.8

3.8

3.5

7.2

14

15

19

14

11

9.5

8.3

7.5

7.2

6.8

6.4

6.1

6.4

7.5

7.5

7.5

6.8

6.1

6.1

6.1

5.7

224.4

7.24

0.329

0.38

Nov.

5.4

*5.4

5.4 

6.3

38

48

36

18

15

14

12

11

11

10

10

9.5

9.5

9.5

9.1

9.5

39

46

26

19

24

96

*101

67

52

40

~

802.6

26.8

1.22

1.36

Dec.

32

28

26 

34

88.

83

57

51

64

60

52

51

45

38

36

42

45

37

29

b23

21

20

23

27

28

b21

b!8

b!7

b32

b78

80

1,286

41.6

1.89

2.18

Jan.

70

b53

*47 

55

57

45

45

56

b45

b38

35

36

35

b31

122

182

95

71

62

61

58

46

b38

90

201

118

76

b61

b55

b53

b52

2,089

67.4

3.06

3.53

Feb.

64

236

157 

b88

77

b70

112

445

b!95

bllO

93

89

88

86

77

62

60

167

165

*113

103

*191

172

113

91

90

81

75

-

-

-

3,470

124

5.63

5.66

Mar.

70

70

74 

77

94

69

75

66

62

55

51

50

48

84

145

110

81

68

62

*209

240

163

139

133

118

96

82

75

72

85

277

3,122

101

4.59

5.29

Apr.

200

135

351 

360

168

144

118

102

92

84

80

93

92

66

73

65

65

63

57

55

50

47

116

156

99

78

67

59

57

55

'

3,287

110

5.00

5.58

Hay

*47

42

36 

36

34

28

27

29

28

27

36

68

59

39

32

28

24

22

21

21

22

21

20

86

149

93

70

108

95

72

55

1,479

47.7

2.17

2.50

June

45

37

31

28

46

43

36

29

24

22

19

17

15

26

50

37

23

27

*22

17

14

13

13

16

14

10

10

10

11

12

~

717

23.9

1.09

1.22

July

14

13

11 

9.1

13

16

11

8.3

7.2

6.1

5.4

5.4

7.2

6.4

5.4

4.7

4.4

1*1

4.4

6.8

5.7

4.4

*9.1

12

7.9

5.7

4.7

4.4

5.4

5.4

4.7

232.3

7.49

0.340

0.39

Aug.

13

10

7.9 

6.8

6.4

5.0

4.4

4.4

4.7

4.7

4.4

4.1

4.1

3.6

5.2

3.8

17

25

16

11

9.5

7.9

6.4

5.0

4.4

3.8

3.5

9.5

6.3

5.4

4.1

229.5

7.40

0.336

0.39

Sept.

3.5

4.1

5J 

5.4

4.1

3.2

3.5

2.9

2.6

2.4

2.1

1.9

1.9

1.9

2.1

2.4

2.4

2.4

2.1

1.9

1.7

-279 1.5

4.1

3.5

2.6

*2.4

2.1

1.9

1.7

-

82.9

2.76

0.125

0.14

Calendar year 1950: Ma 

Water year 1950-51: Max

320

445

3.2 

1.5

Mean 

Mean

39.9

46.6

Cfsm 

Cfsm

1.61

2.12

24.61

28.82

Peak discharge (base, 500 cfs).--Feb. 2,-(3:30 p.m.) 318 cfs (2.65 ft); Feb. 8 (9 a.m.) 550 cfs 

3.39 ft): Mar. 20 (11:30 p.m.) 341 cfs (3.03 ft)j Mar. 31 (4:30 p.m.) 353 cfs (3.08 ft); Apr. 3 

(10 p.m.) 610 cfs (3.89 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--Ho gage-height record May 29 to June 19 and backwater from leaves on control Oct. 10 tc 

Nov. 5, Sept. 24-26j discharge estimated on basis of 1 discharge measurement, recorded range in 

stage, weather records and records for Salmon River near East Hampton.
54 CONNECTICUT RIVER BASIN

West Branch Eightmile River at North Plain, Conn.

Location. Lat 41°26'30", long. 72°20'00", at center of span on downstream side of bridge 

on State Highway 82 at North Plain, Middlesex Coanty, 500 ft downstream from Strongs 

Brook, 0.3 mile upstream from confluence with East Branch, and 6 miles upstream from 

mouth of Eightmile River.

Drainage area. 18.6 sq mi.

Records available.--September 1937 to September 1951. Published as "near North Lyme" 

September 1937 to April 1939.

Gage.--Wire-weight gage read once daily. Datum of gage is 57.74 ft above mean sea level, 

datum of 1929. Prior to May 1, 1939, staff gage at bridge 0.7 mile downstream at 

datum 12.17 ft lower.

Average discharge.--14 years, 37.3 cfs (adjusted to present site).

Extremes.--Maximum discharge during year, 550 cfs Apr. 3 (gage height. 5.6 ft, from floodmark); minimum, 1.9 cfs Sept. 14, 15, 21, 22 (gage height. 1.80 ft).

1937-51: Maximum discharge, 1,810 cfs Sept. 21, 1938 (gage height, 8.2 ft, from 

floodmarks, site and datum then in use) by computation of flow through submerged 

bridge; minimum observed, 0.05 cfs Sept. 12, 1944 (gage height, 1.60 ft).

Remarks. Records good.

Revisions (water years) . W 1141: 1948.

Rating table, water 

from uncertain so 

feet per second)

sar 1950-51, except periods of ice effect or backwater 

fee (gage height, in feet, and discharge, in cubic

1.9

2.0 

2.2 

2.6

1.9

3.5

5.7

12

32

3.0 

3.5 

4.0 

5.6

64

120

215

550

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

L'ay

I

2

j

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

25

26

27

28

29

30

31

Total

Mean

Cfsm

Gale

 

0-t .

2 .5

2.5

2.5

2.9

2.7

2.7

2 .7

2.7

2.5

5.7

6.6

8.9

8.0

5.7

5.3

4.8

4.6

4.6

4.6

4.6

4.2

4.2

5.0

5.5

4.8

4.4

4.4

3.9

3.9

3.9

3.7

135.0

4.35

0.234

0.27

idar yea

 

NDV.

3.7

*5.7

3.7

6.9

39

17

12

11

10

8.9

8.3

7.7

7.2

6.9

7.2

7.2

7.4

6.9

6.6

7.4

22

29

20

16

28

114

*69

45

41

31

-

603.7

20.1

1.08

1.20

 

Dec.

25

22

22

32

110

80

48

47

63

61

45

39

33

31

28

33

34

28

23

b!9

b!7

b!6

b!8

22

21

b!6

b!5

b!4

40

93

84

1,176

37.9

2.04

2.35

- 1950: Max 240

Jan.

64

-49

*39

49

43

36

37

b50

b38

b30

b28

b30

b28

25

185

120

60

55

54

50

48

b34

b32

155

133

84

b60

b48

b44

b42

b40

1,792

57.8

3.11

3.58

 1 

Feb.

b60

195

114

74

64

63

135

355

165

b90

79

69

69

69

58

51

47

235

128

*95

95

*225

135

95

84

69

69

60

-

-

-

3,047

109

5.86

6.10

Mar.

54

60

57

60

79

69

60

53

47

41

41

40

38

55

101

69

63

53

51

*510

195

135

107

114

95

79

69

64

61

74

285

2,679

86.4

4.65

5.36

Apr.

185

107

390

275

155

114

95

84

74

69

64

74

74

69

60

53

58

51

49

45

41

39

155

101

74

69

57

51

52

42

-

2,826

94.2

5.06

5.64

May

*41

39

36

33

32

30

29

28

26

24

31

69

46

36

32

28

26

24

21

21

21

18

16

85

145

79

58

95

61

49

38

1,317

42.5

2 .28

2.63

 

June

33

27

25

22

32

25

22

20

18

16

15

12

13

32

32

24

21

24

*18

14

15

12

12

15

12

9.6

10

12

12

14

-

568.6

19.0

1.02

1.14

July

12

11

9.3

8.0

12

9.3

8.3

7.2

6.9

5.7

5.0

4.8

8.0

5.3

4.6

4.4

4.2

3.9

4.8

6.0

4.4

4.2

*12

7.7

5.5

3.5

2.2

3.7

5.5

4.S

3.9

197.9

6.38

0.343

0.40

Aug.

10

6.6

4.6

5.5

4.6

3.5

3.5

4.4

4.6

4.4

4.2

3.9

4.4

3.9

3.3

4.6

26

24

10

6.9

5.7

4.6

4.4

3.7

2.7

2.7

3.0

5.0

2.9

2.7

2.5

182.8

5.90

0.317

0.37

Sept.

2.5

3.9

4.4

3.5

3.0

2.7

3.3

3.0

2.5

2.4

2.1

2.1

2.1

1.9

1.9

2.9

2.7

2.4

2.2

2.1

1.9

1.9

3.9

4.2

3.2

2.7

2.5

2.5

2.5

2.5

-

81.4

2.71

0.146

0.16

Min 2.7 Mean 31.9 Cfsm 1.72 In. 23.23

Water year 1950-51: Max 390 Min 1.9 Mean 40.0 Cfsm 2.15 In. 29.20

* Discharge measurement made en this day. 

b Stage-discharge relation affected by ice
CONNECTICUT RIVER BASIN 355 

Reservoirs in Connecticut River basin

First Connecticut and Second Connecticut Lakes on Connecticut River are operated as a unit 

for storage of water for power.The reservoirs in downstream order and usable capacity 

of each are as follows: Second Lake, 12 miles northeast of Pittsburg, N. H., 

506,000,000 cu ft; First Lake, 5 2/3 miles northeast of Pitfcsburg, N. H. , 3,330,000,000 

cu ft. Records furnished by New England Power Co.

Lake Francis on Connecticut River at Pittsburg, N. H. , completed in March 1940, used for 

storage of water for power, has usable capacity of 4,326,000,000 cu ft. Records furnished by New Hampshire Water Resources Board.

Comerford Station Pond on Connecticut River, 4j miles northeast of Barnet, Vt., completed 

in 1930 for storage of water for hydroelectric power development, has usable capacity 

of 1,279,000,000 cu ft. Records furnished by New England Power Co.

Union Village Reservoir on Ompompanoosuc River, l£ miles north of Union Village, Vt., completed in 1949 for flood control, has usable capacity of 1,660,000,000 cu ft. Records 

furnished by Corps of Engineers.

Lakes and ponds in Mascoma River basin. These reservoirs are operated as a unit for storage of water for power. The reservoirs and usable capacity of each are as follows: 

Goose Pond, 5^ miles northeast of Maseoma, N. H. , 509,0013,000 cu ft; Grafton Pond, 

8| miles southeast of Mascoma, 144,000,000 cu ft; Crystal Lake, 5^ miles southeast of 

Mascoma, 75,000,000 cu ft; Mascoma Lake at Mascoma, 337,000,000 cu ft; total usable capacity of the four reservoirs, 1,060,000,000 cu ft. Records furnished by New England 

Pawer Co.

Sunapee Lake on Sugar River at Sunapee, N. H., used for recreation and storage of water 

for power, has a capacity of 862,000,000 cu ft. Records collected by Geological Survey.

Surry Mountain Reservoir on Ashuelot River, 4| miles north of Keene, N. H., completed in 

1942 for flood control, has usable capacity of 1,420,000,000 cu ft. Records furnished 

by Corps of Engineers.

Birch Hill Reservoir on Millers River, 1 mile east of South Royalston, Mass., completed in 

1941 for flood control, has usable capacity of 2,180,000,000 cu ft. Records furnished 

by Corps of Engineers.

Tully Reservoir on East Branch Tully River, 3-| miles north of Athol, Mass., completed in 

1948 for flood control, has usable capacity of 958,000,000 cu ft. Records furnished by 

Corps of Engineers.

Somerset and Harriman Reservoirs in Deerfield River basin are operated as a unit for storage of water for hydroelectric power development. The downstream order and usable capacity of each are as follows: Somerset Reservoir on East Branch Deerfield River, 

Z\ miles northeast of Somerset, Vt., 2,500,000,000 cu ft; Harriman Reservoir on Deerfield River at Davis Bridge, Vt., 5,060,000,000 cu ft. Records furnished by New 

England Power Co.

Quabbin Reservoir on Swift River, 3£ miles east of Belchertown, Mass., completed in August 

1939 for storage of water for municipal supply, has usable capacity of 55,700,000,000 

cu ft. Records furnished by Water Division, Metropolitan District Commission.

Ludlow Reservoir in Chicopee River basin, 3-j miles northwest of Three Rivers, Mass., cotnpleted in 1875 for storage of water for municipal supply, has a capacity of 201,000,000 

cu ft. Records furnished by Board of Water Commissioners, Springfield, Mass.

Watershops Pond on Mill River in Springfield, Mass., completed in 1857 for storage of 

water for power, has usable capacity of 70,600,000 cu ft. Records furnished by Ordnance Department, Department of the Army.

Knightville Reservoir on Westfield River, 4 miles north of Huntington, Mass., completed 

in 1941 for flood control, has usable capacity of 2,130,000,000 cu ft. Records furnished by Corps of Engineers.

Borden Brook and Cobble Mountain Reservoirs in Westfield Little River basin are operated 

as a unit for storage of water for municipal supply and for hydroelectric power development . The downstream order and usable capacity of each are as follows: Borden Brook 

Reservoir on Borden Brook, 3i miles south of Blandford, Mass., 344,000,000 cu ft; 

Cobble Mountain Reservoir on Westfield Little River, 65 miles west of Westfield, Mass., 

3,050,000,000 cu ft. Records furnished by Board of Water Commissioners, Springfield, 

Mass.

Otis Reservoir in Farmington River basin, 1 mile northeast of Cold Spring, Mass., eompleted in 1865 for storage of water for power, has usable capacity of 780,000,000 cu 

ft. Records furnished by Collins Co., Collinsville, Conn.

Barkhamsted, East Branch and Nepaug Reservoirs in Farmington River basin are operated as 

a unit for municipal water supply and compensation for water diverted from river. The 

downstream order and capacity are as follows: Barkhamsted Reservoir on East Branch 

Parmington River, l£ miles south of Barkhamsted, Conn., completed in 1939, has total 

capacity of 4,250,000,000 cu ft; East Branch Reservoir on East Branch Farmington River, 

1 mile east of New Hartford, Conn., completed in 1919, has total capacity of 400,000,000 

cu ft; Nepaug Reservoir on Nepaug River, \\ miles northwest of Collinsville, Conn., completed in 1918, has total capacity of 1,280,000,000 cu ft. Records furnished by Water 

Bureau, Metropolitan District Commission, Hartford.

Whigyllle Reservoir on North Branch Pequabuck River at Whigville, Conn., completed in 1908 

for storage of water for domestic water supply, has total capacity of 8,650,000 cu ft. 

Records furnished by Board of Water Commissioners, New Britain, Conn.
256 CONNECTICUT RIVER BASIN

Reservoirs In Connecticut River basin Continued

Shenipsit Lake on Hockanum River, three-quarters of a mile east of Rockville, Conn. Dam 

raised to present crest elevation in 1871, providing a usable capacity of 250,000,000 

cu ft for municipal supply and power; total capacity of lake, 730,000,000 cu ft. Capacities based on lake survey by Connecticut State Board of Fisheries and Game. Stage 

records furnished by Rockville Water & Aqueduct Co.

Monthly change in reservoir contents in Connecticut River basin, in millions of cubic feet, 

water year October 1950 to September 1951

Month

November .................

December .................

Calendar year 195O.....

February .................

July.....................

Water year 1950-51 .....

Month

Calendar year 195O.....

May... ...................

July.....................

September ................

Water year 1950-51 .....

Month

October. .................

December .................

Calendar year 1950.....

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

May ......................

July .............. .

Water year 1950-51.....

Month

October. .........

November ......... .

Calendar year 1950.....

February ...............

March. ........

April. ..............

May ...........

June .............

July.....................

August ..................

September ............

Water year 195O-51 .....

First and 

Second 

Connecticut 

Lakes

+522

-61

-133

527

+50

Sunapee 

Lake

+524

-69

+48

ftuabbin 

Reservoirt

+839

+6,532

+233

+6,873

Otis 

Reservoir

+372

+B3

Lake 

Francis

-216

+190

-37

Surry 

Mountain 

Reservoir

-4.0

0

+ .3

Ludl ow 

Reservoir

+27.3

+33.0

+2.7

Barkhamsted 

East Branch 

and Nepaug 

Reservoirs

+1,047

+159

Comer ford 

Station 

Pond

-127

+220

-107

+77

+37

Birch 

Hill 

Reservoir

-1.5

+5 2

54 5

-.9

-.3

Water shops 

Pond

O

+ .7

+1.8

Whigville 

Reservoir

+ .3

+1.5

Union 

Village 

Reservoir

-0.1

+6.4

+3.8

+11.2.

-95.5

-.1

Tully 

Reservoir

+19.7

0

+ .1

Knightville 

Reservoir

+14.1

+8.3

+ .1

Shenipsit 

Lake

+117.9

O

Lakes and 

ponds in 

Mascoma 

River basin

-114.3

+380.2

+44.2

+113.9

-19.3

+352.6

Somerset 

and 

Harriman 

Reservoirs

+1,366

-775

-377

Borden Brook 

and Cobble 

Mountain 

Reservoirs

+121

+907

+61

t Adjusted for dive 

aqueduct. 'sion from Ware River and diversion to Wachusett Reservoir and Chicopee Valley
MENUNKETESUCK RIVER BASIN 

Menunketesuck River near Clinton, Conn.

257

Location.--Lat 41"18'10", long. 72°31'00", on right bank at Fairy Dell, 100 ft downstream 

from Cobb's Bridge, 1.7 miles north of Clinton, Middlesex County, 2.4 miles downstream 

from Kelseytown Reservoir, and 4.9 miles upstream from mouth.

Drainage area.--11.6 sq mi.

Records available. June 1941 to September 1951.

Gage. Water-stage recorder. Datum of gage is 23.64 ft above mean sea level, datum of 

1929.

Average discharge.--10 years, 20.2 cfs (adjusted).

Extremes (unadjusted for storage or diversion). Maximum discharge during year, 340 cfs 

Mar. 31 (gage height, 4.37 ft); minimum, 0.08 cfs Sept. 22, 23 (gage height, 0.63 ft).

1941-51: Maximum discharge, 870 cfs Nov. 12, 1947 (gage height, 6.72 ft), from 

rating curve extended above 270 cfs on basis of logarithmic plotting; no flow at times 

during August and September 1944; minimum gage height, 0.48 ft Sept. 9-12, 1944.

Remarks. Records excellent except those for periods of backwater from leaves and debris 

and those below 2.5 cfs, which are good. The daily discharge record for all periods 

except those of low flow is a summation of daily flow at gaging station and daily diversion from Kelseytown Reservoir as measured by venturi meter. During periods of low 

flow, diversions from Kelseytown Reservoir are compensated for by release of water from 

Killingworth Reservoir which is located, about 2.5 miles upstream from Kelseytown Reservoir on a small tributary of Menunketesuck River. The drainage area of Killingworth 

Reservoir is so small that its yield is considered negligible during periods of low 

flow when it becomes necessary to draw upon it. Therefore, the daily discharge record 

for periods of low flow Oct. 1-11, July 13 to Aug. 21, Aug. 30 to Sept. 30, is a summation of daily flow at gaging station and daily diversion from Kelseytown Reservoir, 

minus daily draft on Killingworth Reservoir adjusted for daily change in contents in 

Kelseytown Reservoir. Draft on Killingworth Reservoir is determined at a staff-gage 

station just below spillway. Change in contents in Kelseytown Reservoir is determined 

at a temporary recording station at dam. Ho account is taken of evaporation from the 

reservoir surfaces. Flow at recording gage station regulated by Killingworth and 

Kelseytown Reservoirs and by diversion for domestic water supply from Kelseytown 

Reservoir.

Cooperation. Venturi-meter records and some other data furnished by the Guilford-Chebter 

Water 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

Cfam

In.

Oct.

cl.l

cl.l

cl.l

1.1

1,0

1.0

1.0

1.0

1.0

2.1

3.1

3.3

4.8

3.4

2.6

2.2

2.0

1.9

1.9

1.7

1.7

1.6

1.5

1.6

1.7

2.0

1.9

1.6

1.6

1.6

1.6

56.8

1.83

0.158

0.18

Nov.

1.6

*1.6

1.5

1.7

5.5

7.8

5.2

4.0

3.6

3.3

2.8

2.6

2.4

2.4

2.2

2.2

2.2

2.3

2.2

2.2

8.2

10

7.5

6.2

10

98

58

36

29

22

-

344.2

11.5

0.991

1.11

Dec.

18

15.

14

21

11

51

30

31

55

38

33

31

26

21

19

51

51

33

25

19

17

16

16

17

17

16

*14

11

24

75

59

955

30.8

2.66

3.07

Jan.

51

34

*29

34

33

26

27

42

29

22

21

20

20

18

90

104

54

39

33

32

29

25

19

56

106

59

40

31

33

34

27

1,217

39.3

3.39

3.91

Feb.

37

103

70

47

37

31

44

186

89

51

40

36

37

39

34

27

25

102

83

55

*51

 137

93

55

44

38

36

33

_

_

-

1,660

59.3

5.11

5.32

Mar.

30

32

32

37

50

50

42

37

31

28

25

23

21

34

65

42

34

29

25

*159

131

77

62

62

51

41

35

33

33

43

222[

1,616

52.1

4.49

5.18

Apr.

110

67

143

131

74

55

46

40

37

34

32

30

34

32

28

25

28

25

23

22

19

17

56

61

39

32

27

23

26

25

-

1,341

44.7

3.85

4.30

May

*20

17

16

14

13

12

12

11

ell

ell

c!5

c40

c28

c!9

c!5

c!3

ell

clO

c9.2

C9.9

C9.6

C9.4

c8.6

c30

c35

c21

c21

c48

c33

c21

c!6

559.7

18.1

1.56

1.80

June

c!3

clO

c9.6

c9.0

ell

e9.8

C8.3

c6.4

c5.6

c5.7

c5.1

c4.5

c4.0

»c9.5

IS.

14

9.8

8.0

6.3

5.6

4.7

4.3

3.9

4.7

4.8

3.8

3.3

3.3

3.6

4.2

-

214.8

7.16

0.617

0.69

July

6.2

5.7

4.1

3.5

4.1

5.1

4.4

3.3

2.7

2.6

2.4

2.7

5.7

3.7

3.0

2.6

2.2

L.8

2.3

2.9

2.2

2.0

*2.8

2.6

2.2

1.9

1.7

2.1

2.4

2.5

2.3

95.7

3.09

0.266

0.31

Aug.

3.3

4.2

3.2

2.4

2.4

2.2

2.1

2.0

2.2

2.1

2.0

2.0

2.0

2.0

1.7

2.0

10

16

9.0

5.3

4.4

3.7

3.4

2.9

2.5

2.2

 2.0

1.7

1.6

1.5

1.5

105.5

3.40

0.293

0.34

Sept.

1.5

1.6

2.6

2.2

2.0

1.7

1.6

1.4

1.3

1.1

1.1

1.0

1.0

.9

.9

.9

.8

.8

.7

.7

.7

.6

1.0

1.6

1.1

1.0

.8

.7

.7

.6

-

34.6

1.15

0.099

0.11

Calendar year 1950: Max 98 Min 1.0 Mean 18.1 Cfam 1.56 In. 21.24

Water year 1950-51: Max 222 Min 0.6 Mean 22.5 Cfsm 1.94 In. 26.32

Peak discharge (base, 20o cfa. unadjusted for storage or diversion). Feb. 8 (6;5O a.m.) 247 

(3.68 ft); Mar. 20 (6 p.m.) 310 cfs (4.22 ft); Mar. 31 (10:30 a.m.) 340 cfa (4.37 ft); Apr. 3 

(7:30 p.m.) 228 cfs (3.66 ft).

* Diacharge measurement made on this day.

c Backwater from leavea or debris on control.
258 QUINNIPIAC RIVER BASIN

Quinnipiae River at Wallingford, Conn.

Location. Lat 41°26'58", long. 72°50'29", on right bank 0.8 mile downstream from Quinnipiac Street Bridge in Wallingford, New Haven County, and 2 miles upstream from Worton 

Brook.

Drainage area. 109 sq mi.

Records available. October 1930 to September 1951.

Gage. Water-stage recorder and timber control. Datum of gage is 20.24 ft above mean sea 

level, datum of 1929.

Average discharge. 21 years, 199 efs.

Extremes. Maximum discharge during year, 1,880 cfs Mar. 31 (gage height, 6.89 ft); minimum, 20 cfs Oct. 7 (gage height, 0.43 ft); minimum daily discharge, 35 efs Oct. 9.

1930-51: Maximum discharge, 5,230 cfs Sept. 21, 1938 (gage height, 9.55 ft), by 

computation of flow over dam 1 mile above station; minimum, 8 cfs Nov. 2, 1930 (gage 

height, 0.38 ft).

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

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

papers indicated.

Water-Supply 

Paper

Water 

year Date Gage height 

(feet)

Discharge 

(cfs)

Mar. 9

Mar. 29

Mar. 5

Jan. 10

Dec. 21

Jan. 1

Mar. 24

4.75

5.90

852

,330

,810

1,120

1,160

2,900

Remarks.--Records gotd except those fur period of nu gage-height record, whi:h 

Flow regulated by mills above station.

Revisions (water years).--W 781: 

W TITTi1947 (calendar year mean

Drainagp area. W 851: 1933, 1936. W 971: 1940-42.

Revised figures of discharge for- high-water periods 

In the water years 193 1934-35/1937, and for the entire water years 1949-50, superseding those published in Water-Supply'papers 726, 756, 781, 821,"851, 1141, li71,"are

given herein.

Day 

(water year)

1931-32

Mar. 28. . . .

29. ...

1933-34

Mar. 5....

6. ...

7. ...

Apr . 1 ....

2. ...

13. ...

Sept. 9. ...

10. ...

1934-35

Dec . 1. ...

2. ...

20. ...

21. ...

Jan. 10. ...

Discharge 

(cfs)

783

1,190

1.340

1,620

1,030

1,230

1,220

1,260

708

965

512

593

769

662

918

Day 

(water year)

1934-35

Jan. 11. ...

Mar. 7....

1936-37

Dec. 11. ...

12. ...

21. ...

Jan . 23 ....

24. ...

25. ...

26. ...

27. ...

Mar. 16....

17. ...

Apr . 6 ....

7 ....

May 15....

16. ...

Discharge 

(cfs)

868

926

653

700

995

720

578

705

769

553

697

772

678

853

605

7OO

Month

Water year 1931-32. . . 

Calendar year 1932...

September. .............

Water year 1933-34...

Calendar year 1934. . .

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

Water year 1934-35. . . 

Calendar year 1935...

Cfs-days

42.112 

54,008

14 959

7,732

73,784

87,799

76,839 

62,488

Maximum

1 190 

1 190

965

1,620

1,620

926 

926

Minimum

12 

12

26

17

26

18 

15

Mean

115 

148

258

202

241

211 

171

Per square 

mile

1.06 

1.36

2.37

1.85

2.21

1.94 

1 .57

Runoff in 

inche s

14.38 

18.45

2.64

25.16

29.95

26.21 

21.31
QUTUNTPIAC RIVER BASIN 259

Revised monthly figures, in cubic feet per second, of Quinnipiae River at Wallingford, Cor 

1932, 1934-35, 1937, 1949-50--Continued

Minth

December 1936 ............

Calendar year 1936 .....

May. .....................

rfater year 1936-37. .... 

Calendar year 1937.....

Cf s-days

1,3,838

10,271

87,876 

93,692

Maximum

995

2, -760

700

995

1,850

Minimum

13

£51

181

16 

16

Mean

229

331

241 

257

Per square 

mile

2.10

3.04

2.21 

2.36

Runoff in 

inches

28.63

3.50

29.98 

31.96

1948 tn September 1949

Day

1

2

4

^

7

8

9

10

11

12

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oc t .

65

62

50

44

50

52

51

68

96

76

64

78

66

65

59

57

50

50

54

*56

59

56

56

66

71

70

71

65

62

59

54

1,902

61.4

0.563

0.65

Nov .

54

52

59

108

135

114

98

96

86

187

435

251

159

130

112

102

94

90

87

248

246

167

161

145

123

104

112

108

117

122

-

4,102

137

1.26

1.41

Dec.

114

112

110

104

94

98

no

108

98

93

106

122

118

115

115

117

123

123

125

117

117

115

114

112

108

102

97

96

113

243

1,820

5.259

170

1.56

1.80

Jan.

2. 500

1 , 200

715

530

524

1,130

1,380

804

629

531

464

472

403

360

310

278

280

27U

278

282

255

355

378

380

390

378

342

370

420

405

378

17,271

557

5.11

5.89

 

Feb.

328

320

*2«8

278

268

251

278

315

305

322

305

265

265

338

405

450

492

450

420

435

390

385

42O

405

405

382

355

328

_

_

-

9,848

352

3.23

3.36

far.

308

300

310

308

315

390

435

420

405

375

365

375

365

335

302

280

260

253

241

236

253

305

388

378

365

328

282

*E68

239

220

216

9,820

317

2.91

3.36

Apr.

212

205

199

197

197

369

450

450

390

360

318

263

251

360

378

382

360

330

378

450

405

*375

372

362

355

338

305

268

236

218

-

9,733

324

2.97

3.31

May

210

216

420

630

430

492

465

405

370

360

348

325

292

258

241

227

210

201

195

212

260

301

420

350

332

298

275

227

199

189

185

9,593

309

2.83

3.26

June

179

168

162

154

145

142

145

145

126

130

121

110

101

121

121

117

106

1LO

98

39

84

106

100

90

88

93

80

*78

100

66

-

3,475

116

1.06

1.18

July

62

61

58

52

46

44

56

51

50

52

57

59

68

62

63

62

54

57

57

57

193

187

118

84

80

84

77

76

75

60

37

2,199

70.9

0.650

0.75

Aug.

39

50

58

95

83

75

58

44

52

53

59

121

120

114

96

89

75

72

64

57

42

*43

48

57

48

40

38

31

84

80

75

2,060

66.5

0.610

0.70

Sept.

161

117

93

71

57

55

62

65

63

60

39

44

64

101

84

73

67

46

49

55

55

61

74

72

55

54

55

58

61

79

-

2,050

68.3

0.627

0.70

Calendar year 1948 : Max 1,820 Min 44 Mean 216 Cfsm 1.98 In. 26.92

Water year 1948-49 : Max 2,380 Min 31 Mean 212 Cfsm 1.94 In. 26.37

Peak discharge (base, 900 cfs).--Jan. L (3 a.m.) 2,900 cfs (7.97 ft); Jan. 7 (4 a.m.) 1,480 

(6.21 ft).
260 QUINNIPIAC RIVER BASIN 

Quinnipiac River at Wallingford, Conn. Continued

Discharge, Ln cubic feet per second, water year October 1949 to September 1950

LI ay

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

72

58

51

55

*66

65

59

55

50

52

49

51

48

48

45

36

41

39

41

40

38

39

34

42

32

75

85

77

65

57

77

1,642

53.0

0.486

0.56

Nov.

77

92

79

68

65

58

53

51

51

49

54

54

50

71

72

61

57

56

55

53

51

55

61

48

*67

69

59

53

65

78

-

1,832

61.1

0.561

0.63

Dec.

74

77

78

61

62

67

62

59

55

50

49

62

179

222

154

113

91

73

a75

a76

a73

a70

a82

a82

a72

a67

a!60

a!40

a!20

allO

a95

2,810

90.6

0.831

0.96

Jan.

a75

a75

a!05

a 100

a95

a!30

a!80

aTTo

allO

a!30

168

*152

138

161

156

136

127

135

149

132

116

106

109

124

151

151

147

134

130

147

147

4,026

130

1.19

1.37

Feb.

129

138

164

147

127

120

134

*124

187

290

258

197

175

181

210

278

278

251

225

200

163

164

154

158

171

158

135

134

-

_

-

5,050

180

1.65

1.72

Mar.

138

140

126

118

123

149

145

191

605

530

312

253

260

246

230

227

208

214

210

191

225

278

502

642

555

420

358

372

390

368

*312

9,051

292

2.68

3.09

Apr.

268

251

241

241

241

251

225

195

185

175

169

168

169

191

225

220

191

171

164

T93

312

330

246

203

193

*197

230

260

251

246

-

6,602

220

2.02

2.25

May

260

270

270

239

255

265

248

201

181

212

225

197

179

164

162

162

153

153

216

298

255

193

166

189

212

227

203

171

183

232

227

6,568

212

1.94

2.24

June

280

492

390

266

241

188

160

143

133

121

111

109

109

g!09

g!37

g!26

gl£6

glEl

g!09

gl!7

g!07

g!03

glOO

g97

g!09

gl!7

g!05

glOO

g97

g9§

-

4,619

154

1.41

1.57

July

g94

g92

g89

g95

gl!5

134

g!24

f96

f76

f86

f!45

flSO

134

*f!40

119

100

117

112

98

111

112

98

81

73

75

75

73

68

65

59

§3.

3,059

98.7

0.906

1.04

Aug.

63

58

58

62

54

52

53

52

50

55

58

58

47

48

15

45

74

*56

59

247

247

156

104

87

76

73

64

61

61

67

64

2,354

75.9

0.696

0.80

Sept.

66

62

62

62

58

54

53

52

50

50

54

58

63

79

69

64

55

51

51

51

51

50

53

45

42

41

45

45

46

51

-

1,633

54.4

0.499

0.56

Calendar year 1949: Max 2,380 Min SI Mean 198 Cfsm 1.82 In. 24.66

Water year 1949-50: Max 642 Min 32 Mean 135 Cfsm 1.24 In. 16.79

Peak discharge (base, 900 cfs). No peak above the base. 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather record 

and records for stations on nearby streams.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

g Computed from once- or twice-daily staff-gage readings.
QUINNIPIAC RIVER BASIN 

Quinnipiac River at Wallingford, Conn. Continued

261

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.

Oct.

46 

42

43

*41

40

43

40

36

35

49

64

84

92

78

59

55

51

48

49

45

48

41

49

51

49

44

42

43

42

42

42

1,533

49.5

0.454

0.52

Nov.

42 

*44

44

60

117

122

92

71

64

59

53

46

46

43

43

43

42

43

42

49

140

147

109

78

121

450

429

*285

199

148

-

3,271

109

1.00

1.12

Dec.

125 

109

97

118

209

215

164

148

209

349

201

190

164

140

128

140

143

140

139

117

88

40

39

43

45

84

82

79

132

a350

a350

4,477

144

1.32

1.52

Jan.

a230 

a200

al90

a280

a300

a230

aZIO

a230

a200

a!70

a!60

al50

a!50

al40

a450

a600

a420

a270

a290

a330

a330

a250

*183

469

790

542

352

277

265

256

210

9,124

294

2.70

3.11

Feb.

201 

451

409

303

256

227

484

1.540

945

542

375

334

348

393

343

287

256

841

818

522

*460

940

*915

618

465

405

378

348

-

_

-

14,204

507

4.65

4.84

Mar.

320 

310

310

320

368

405

368

345

315

272

246

241

236

335

480

435

328

275

253

590

705

542

450

435

420

350

305

*282

285

396

1.710

12,632

407

3.73

4.30

Apr.

1.580 

788

990

1,090

788

605

518

450

405

372

568

570

590

405

340

505

290

275

258

246

250

214

*584

580

505

260

252

216

220

214

13,288

443

4.06

4.55

May

197 

187

177

171

168

166

166

160

155

149

200

515

270

199

171

154

147

157

155

157

144

144

142

462

555

512

204

220

197

173

156

6,268

202

1.85

2.13

June

143 

131

120

117

170

175

143

126

113

102

99

110

102

134

222

218

147

125

119

108

102

98

98

*102

92

§5

89

95

99

117

5,701

125

1.13

1.26

July

117 

103

95

85

110

102

92

80

70

71

68

71

98

84

72

69

66

65

61

66

59

57

68

67

*64

60

57

67

84

70

68

2,564

76.5

0.700

0.81

Aug.

135 

90

73

69

51

56

53

57

57

64

70

69

69

64

61

77

96

81

71

64

87

90

64

56

59

62

57

55

49

56

53

2,115

68.2

0.626

0.72

Sept.

65 

81

69

64

71

72

69

62

55

50

50

51

52

50

64

69

57

61

62

57

55

50

57

50

45

44

47

*46

40

519

-

1,698

56.6

0.519

0.58

Calendar year 1950: Max 642 Min 35 Mean 143 Cfsm 1.31 In. 17.80

Water year 1950-51: Max 1,710 Min 35 Mean 205 Cfsm 1.88 In. 25.44

Peak discharKe (base, 900 cfs). --Feb. 8 (2 to 3 a.m.) 1,480 cfs (6.20 ft); Feb. 18 (8 a.m.) 940

cfs (4.68 ft); Feb. 23 (2 a.m.) 1,030 cfs (4.95 ft); Mar. 31 (9 p.m.) 1,880 cfs (6.89 ft); Apr. 3

\£. p.m.; j.,j.ou ui B 13.40 luy.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for stations on nearby streams.
£62 HOUSATONIC RIVER BASIN

East Branch Housatonic River at Coltsville, Mass.

Location Lat 42°28'10", long. 73°]1'49", on right bank at Coltsville, Berkshire County, 

1-5- miles upstream from Unkamet Brook and 2 miles northeast of Pittsfield.

Drainage area. 57.1 sq mi.

Records available. March 1936 to September 1951. Prior to October 1945, published as 

Housatonlc Klver at Coltsville.

Gage. --Water- stage recorder. Datum of gage is 993.49 ft above mean sea level, datum of

Average discharge .--15 years, 114 cfs (adjusted for diversion).

Extremes . --Maximum discharge during year, 3,280 cfs Nov. 26 (gage height, 8.64 ft), from 

rat ing curve extended above 1,300 cfs on basis of computations of flow over dam at gage 

heights 10.38 and 10.80 ft; minimum daily, 21 cfs Oct. 22.

1936-51: Maximum discharge, 6,400 cfs Sept. 21, 1938 (gage height, 10.80 ft), by 

computation of flow over dam; minimum daily, 4.4 cfs Aug. 15, 1936.

Remarks .--Records good. Flow regulated by powerplants above station. Diversion above 

station from Cleveland Brook Reservoir for municipal supply of Pittsfield since May 

1950.

Revisions (water years ). W 851: 1936(M).

Rating table

2.0

z.z

2.5

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

In cubic feet per second)

Oct. 1 to Nov . 26 to Sept. 30

3.0 ISO

3.5 267

4.0 412

5.0 800

6.0 1,260

7.1 1,950

arge, In cubic feet per second, water year October 1950 to September 195.1

Day

1

2

3

4

5

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

37

49

50

50

50

50

48

45

52

53

60

63

75

6T

45

51

*52

46

39

29

29

2135-

27

34

34

33

32

26

32

30

1,338

43.2

+ 156

Nov.

24

2F

31

32

91

68

33

36

31

28

28

25

*24

31

24

28

26

29

27

32

109

77

32

42

193

1,900

376

161

134

108

-

3,809

127

+160

Dec.

86

79

73

241

456

*225

139

211

322

170

177

179

123

89

85

87

76

76

65

57

63

58

63

57

63

59

51

4852"

71

68

3,669

118

+ 146

Jan.

63

62

64

223

279

145

87

83

66

*62

63

66

64

50

110

148

129

100

89

118

187

149

85

192

237

143

88

62

70

60

47

3,391

109

+163

Feb.

216

518

2W

133

104

96

iTT

169

161

138

114

117

*115

150

136

119

106

261

238

178

169

277

194

137

112

119

144

152

_

_

-

4,755

170

+ 155

Mar.

119

112

93

7952"

96

124

170

122

90

84

100

121

217

221

*150

131

116

128

203

182

138

112

248

316

199

134

155

290

688

1,860

6,890

222

+175

Apr.

604

416

*847 6"J5"

390

311

345

351

311

302

*357

272

324

280

206

199

234

197

171

152

132

1O8 SHE"

243

173

216

164

139

116

120

-

8,610

287

+ 114

May

103

92

82

76

61

58

53

58

*57

44

84

155

157

105

79

72

56

57

58

44

56

50

53

149

201

87

64

129

96

83

85

2,604

84.0

+150

June

69

62

43

*bl

53

49

35

37

36

26_

33

29

30

62

124

89

63

66

63

Ii8

47

45

47

48

79

65

54

53

46

75

-

1,637

54.6

+127

July

79

70

55

42

43

61

58

3542"

35

72

125

250

124

68

65

59

*88

181

421

201

104

91

74

63

50

5&

37

43

43

39

2,774

89.5

+ 100

Aug.

40

42

41

45

42

43

36

40

43

65

46

46

32

*4T

39

46

122 TO3"

61

58

73

90

68

53

48

49

56

43

46

45

41

1,646

53.1

+ 192

Sept.

44

49

9373"

50

51

54

48

39

45

41

*44

43

38

63

80

59

46

45

43

42

37

3¥

45

52

63

55

51

49

37

-

1,517

50.6

+150

Adjusted for diversion

Mean 

Cf sm 

In.

50.9

0.891 

1.03

135 

2.36 

2.64

Calendar year 195O: 

Water year 1950-51:

126 

2.21 

2.54

118 

2.07 

2.37

178 

3.12 

3.25

231 

4.05 

4.66

293 

5.13 

5.72

91.5 

1.60 

1.85

Observed

Max 1,900 Mln 21 Mean 96.9 

Max 1,900 Min 21 Mean 117

61.1 

1.07 

1.19

94.5

1.65 

1.91

62.7 

1.10 

1.27

58.3 

1.02 

1.14

Adjusted

Mean *103 Cfsm tl.80 In. *24.60 

Mean 124 Cfsm 2.17 In. 29.57

Peak discharge (base, 1,150 cfs). Hoy. 26 (4 a.m.) 3,28O cfs (8.64 ft); Mar. 31 (5:3O a.m.) 

2,630 cfs (7.98 ft); Apr. 3 (12:45 p.m.) 1,160 cfs (5.SO ft).

* Discharge measurement made on this day.

t Diversion above station from Cleveland Brook Reservoir for municipal supply of Pittsfield, in 

millions of gallons. Records furnished by city of Pittsfield.

t Adjusted for filling of Cleveland Brook Reservoir and diversion from Cleveland Brook Reservoir.
HOUSATONIC RIVER BAMN 263

Housatonic River near Great Barrington, Mass.

Location.--Lat 42°13'55", long. 73°21'19", on left bank at upstream side of highway bridge 

at Van Deusenvllle, 0.5 mile upstream from Williams River and 2 miles north of Great 

Barrington, Berkshire County.

Drainage area.--280 sq mi.

Records available.--May 1913 to September 1951.

Gage. Water-stage recorder. Datum of gage is 683.04 ft above mean 'sea level, datum of 

1929. Prior to Oct. 1, 1931, staff gage at same site and datum.

Average discharge.--38 years, 526 cfs.

Extremes. Maximum discharge during year, 4,290 cfs Apr. 1 (gage height, 8.41 ft); minimum daily, 87 cfs Oct. 1.

1913-51: Maximum discharge, 12,200 cfs Jan. 1, 1949 (gage height, 12.08 ft), from 

rating curve extended above 5,300 cfs on basis of computations of flow over dam at 

gage heights 11.72 and 12.08 ft; minimum daily, 1.0 cfs Oct. 18, 1914.

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

shifting-control, which are fair. Plow regulated by powerplants above station.

Revisions (water years).--W 781: 1928(M). W 1051: 1928, 1929(M), 1933.

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)

2.5 

2.7 

3.0 

3.5

84 

122 

20O 

390

655

1,410

2,850

5,050

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.

Oct.

87

180

191

263

220

249

229

194

226

250

271

288

286

327

582

290

197

221

189

155

156

135

*119

177

129

139

149

117

118

128

176

6,238

201

0.718

0.83

Nov.

124

129

113

134

201

460

295

207

184

174

171

138

162

167

159

*125

168

143

121

154

386

495

328

£09

375

3,110

3,500

*2,270

1,490

980

-

16,672

556

1.99

2.21

Dec.

720

595

501

703

1,420

1,600

1,310

1,030

* 1,040

1,030

972

868

790

668

537

514

432

529

462

411

411

385

392

3O4

310

392

351

310

348

416

404

20,155

650

2.32

2.68

Jan.

250

ITS

397

581

972

854

60O

570

449

457

437

*427

410

300

534

701

664

592

540

556

714

830

610

704

1,090

950

610

435

480

380

300

17,812

575

2.05

2.37

Feb.

1,100

1,80O

1,350

900

690

609

TbS

1,100

930

7 BO

710

*710

660

797

783

688

625

,230

,440

,190

,050

,700

,560

1,170

870

861

825

818

_

_

-

27,697

989

3.53

3.68

Mar.

790

720

b49

536

652

601

649

87b

804

643

498 642-

563

734

1,160

. 1,040

839

702

*749

966

1,210

1,050

876

884

1,130

1,220

956

908

932

1,440

5,090

28,509

920

3.29

3.79

Apr.

4,100

3,030

2,740

3,280

2,830

2,140

1,710

1,540

1,490

1,320

1,520

1,350

1,270

1,280

1,120

*1,050

988

972

912

804

714

587

876

1,120

1,050

948

910

785

652

754

-

43,580

1,453

5.19

5.79

May

548

524

492

462

456

310

395

395

350

350

280

580

720

*630

480

425

510

340

367

247

404

335

309

446

748

643

437

656

509

462

378

15,988

451

1.61

1.86

June

442 359"

286

398

206

245

243

171

209

154

228

204

210

276

403

457

505

580

295

*241

255

206

201

227

441

282

225

254

227

257

-

8,181

273

0.975

1.09

July

167 2-5-9

227

174

200

197

197

235

221

177

187

332

578

562

282

*319

392

463

615

1,570

1,320

742

583

428

347

255

206

244

172

321

224

12,174

593

1.40

1.62

Aug.

223

188

212

181

150

271

197

186

174

154

247

149

252

209

183

246

480

*47T5

339

332

311

348

518

274

271

257

298

229

234

204

183

7,750

250

0.893

1.03

Sept.

166

228

318

447

297

239

224

208

162

254

183

181

158

165

223

282

*355

230

209

182

172

173

151 2-5U

201

295

290

266

241

150

-

6,869

229

0.818

0.91

Calendar year 1950: Max 3,500 Min 70 Mean 473 Cfsm 1.69 In. 22.94

Water year 1950-51: Max 4,100 Min 87 Mean 574 Cfsm 2.05 In. 27.86

Peak discharge (base, 2,400 cfs).--Nov. 26 (11 to 11:30 a.m.) 5,910 cfs (8.08 ft); Apr. 1 (10:50 

a.m.) 4,290 cfs (8.41 ft); Apr. 4 (7:50 a.m.) 5,340 cfs (7.54 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Jan. 31 to Feb. 4, Feb. 9, 10, May 6-18; discharge estimated on basis 

of 1 discharge measurement, weather records, recorded range in stage, and records for East Branch 

Housatonic River at Coltsville. Stage-discharge relation affected by ice Jan. 7, 8, Jan. 26 to Feb. 

13. Shifting-control method used Oct. 1-19.
264 HOUSATONIC RIVER BASIN

Blackberry River at Canaan, Conn.

Location. Lat 42°01'26", long. 73°20i32", on right bank downstream from highway bridge 

on U. S. Highway 44, 0.7 mile southwest of Canaan, Litchfield County, and l£ miles 

upstream from mouth.

Drainage area. 48.2 sq mi.

Records available.--July 1949 to September 1951.

Gage --Water-stage recorder. Datum of gage is 645.72 ft above mean sea level, datum of 

1929.

Extremes. 1949: Maximum discharge during period July to September 37 cfs Aug. 29 (gage 

height, 2.08 ft); minimum, 2.2 cfs Aug. 28 (gage height, 1.12 ft).

1949-50: Maximum discharge during water year, 515 cfs Mar. 28 (gage height, 4.82 

ft); minimum, 5.6 cfs Oct. 25 (gage height, 1.45 ft).

1950-51: Maximum discharge during water year, 2 550 cfs Nov. 26 (gage height, 9.37 

ft); minimum, 5.4 cfs Oct. 7 (gage height, 1.40 ft).

Maximum stage known, 12.0 ft Dec. 31, 1948, from floodmarks (discharge, 6,000 cfs).

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

good.

Hating tables, July 30, 1949 to Sept. 3o, 1951 (gage height, in feet, and 

discharge, in cubic feet per second)

July 30 1949, to Aug. 24, 1950

1.1 

1.4 

1.6 

1.8

2.0

4.8

9.0

18

2.1 39

2.6 99

3.0 167

4.4 435

Aug. 24, 1950, to Sept. 3O, 1951

1.4

1.5 

1.7 

2.0 

2.4

5.4

7.2

15

36

80

3.0 186

5.0 566

6.0 790

7.6 1,400

Discharge, in cubic feet per second, July to September 1349

Day

l

2

3

4

5

6

7

8

Tota

In..

July

_

_

_

_

_

_

-

Aug.

*6.5

5.6

5.0

4.8

5.0

5.3

4.5

3.8

Sept.

7.8

6.8

5.8

5.1

4.7

4.1

4.0

4.0

Day

9

10

11

12

13

14

15

16

July

_

_

_

_

_

_

_

-

Aug.

3.6

3.2

3.2

3.9

6.0

6.3

6.5

5.5

Sept.

4.2

4.6

4.4

4.0

3.8

4.8

17

13

Day

17

18

19

20

21

22

23

24

July

_

_

_

_

_

_

_

-

Aug.

4.6

4.2

4.4

4.5

4.0

3.5

3.2

3.0

Sept.

7.8

6.3

7.0

6.8

6.0

5.6

6.8

8.2

Day

25

26

27

28

29

30

31

July

_

-

-

-

-

6.2 6'.8

13.0

6.5

0.135

o.oi

Aug.

2.9

2.6

2.5

2.3

17

19

9.4

165.8

5.35

0.111

0.13

Sept.

7.0

6.2

5.8

5.3

5.6

18

-

200.5

6.68

0.139

0.16

Period July to September 1949

Peak discharge (base, 800 cfs). No peak above the base. 

* Discharge measurement made on this day.
HOUSATONIC RIVER BASIN

Blackberry River at Canaan, Conn.-Continued 

Discharge, in cubic feet per second, water year October 1949 to September 1950

265

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

31

23

23

24

25

26

27

38

29

30

31

Total

Mean

Cfsm

In.

Oct.

13

8.8

7.2

6.8

6.5

*6.5

6.5

11

12

9.0

7.8

6.8

6.3

6.5

7.3

11

8.5

7.5

6.8

7.0

6.2

6.0

6.0

6.0

5.8

19

19

13

10

9.4

IP283. 1

9.13

0.189

0.23

Nov.

24

16

13

11

11

11

11

10

9.4

9.0

8.8

9.0

9.0

19

18

14

11

11

10

9.8

10

9.8

8.0 8~^

9.8

12

8.0

8.8

13

*28_

-

361.2

12.0

0.249

0.28

Dec.

19

14

14

11

14

12

10

12

9.4

8.2

9.4

23

206

T5T

57

30

25

38

37

34

30

30

37

44

28

30

166

142

82

39

35

1,363.0

44.0

0.913

1.05

Jan.

33

35

44

59

51

*83

206

TOT

64

102

167

106

77

86

70

62

49

49

37

28

2629"

33

45

61

75

102

65

65

76

57

2,143

69.1

1.43

1.65

Feb.

54

51

49

40

35

36

37

32

91

144

100

77

*66

57

62

65

58

52

49

33

37

39

41

42

40

37

33

31

-

_

-

1,488

53.1

1.10

1.14

Mar.

33

30

29

2658"

37

36

28

430

288

216

187

174

136

112

91

82

77

66

59

66

60

119

*140

122

131

140

303

425

?2T

189

4,153

134

3.78

3.30

Apr.

149

165

183

233

382

222

144

114

102

92

84

81

80

85

98

112

116

100

84

122

156

106

88

78

*68

85

92

84

92

106

-

3,603

120

3.49

2.78

May

114

112

88

75

70

67

60

51

46

64

70

54

48

45

41

43

40m

180

200

124

85

81

86

103

140

99

75

90

114

85

2,635

85.0

1.76

2.03

June

124

165

104

219

1ST

89

70

57

46

54

208

104

66

57

81

63

104

89

64

57

50

46

37

57

99

54

37

30

26

23

-

3,410

80.3

1.67

1.86

Calendar year 1949: Max - Min - Mean - Cfsm -

July

22

20

23

33

44_

53

28

22

18

16

17

*24

21

35

22

18

19

16

16

16

31

16

13

13

16

16

13

11

IT

12

11

614

19.8

0.411

0.47

In.

Aug.

42

37

22

17

14

14

14

12

11

9.0

8.5

8.0

7.3

6.5

6.3

10 6.2

10

8.5

44

47

2?

*15

*13

11

9.8

9.8

8.8

9.8

13

13

479.4

15.5

0.332

0.37

Sept.

18

50" 34

19

15

12

10

9.5

8.2

7.9

12

12

12

12

14

13

10

8.8

7.9

8.2

8.3

7.9

8.2

8.2

7.2

7.0

T35

7.2

7.2

7.2

-

337.8

11.3

0.234

0.26

Water year 1949-50: Max 425 Min 5.8 Mean 54.4 cfsm 1.13 in. 15.31

Peak discharge (base, 800 cfs). No peak above base. 

* Discharge measurement made on this day.

Discharge, in cubic feet per second, water year October 1950 to September 1M51

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

34

25

26 

27

38

29

30

31

Total

Mean

Cfsm

In.

Oct.

7.0

6.7

6.3

6.1

5.9

5.3

5.9

5.9

5.9

9.7

23

29

40

2T

19

15

15

14

13

11

10

10

11

14

14

13 

12

10

10

10

*10

395.3

12.8

0.266

0.31

Nov.

10

10 9.8

30

117

70

39

30

24

32

20

17

16

15

15

17

23

23

19

18

145

90

53

41

297

1,400 

389

218

*163

137

-

3,457.8

115

2.32

2.59

Calendar year 1950 :

Dec.

104

89

84

258

456

213

145

340

266

173

180

160

130

110

90

95

85

75

70

65_

65

70

70

70

75

85 

80

75

115

170

120

4,083

132

2.74

3.16

Jan.

105

95

90

210

220

140

130

110

100

95

90

90

80

70

*160

197

145

115

122

142

163

100

77

200

192

131 

95

77

77

65

53.

3,726

120

2.49

2.87

Feb.

186

280

149

117

92

77

301

240

200

170

150

150

197

196

136

111

106

362

186

154

224

440

530

145

127

111 

120

117

_

-

5,064

181

3.76

3.91

«Iax 1,400 Min 5.9

Mar.

100

95

84

82

84

88

131

151

115

88

83

82

93

206

196

140

129

117

108

378

*209

153

126

214

201

142 

109

108

127

271

lz_0_10

5,119

165

3.43

3.94

Me

Apr.

357

224

724

496

290

214

176

154

140

129

184

182

224

173

HO

124

140

118

104

94

83

77

194

158

120

109 

92

80

77

*7£

-

5,449

182

3.78

4.22

May

65

60

54

53

53

50

48

47

44

43

58

~5$ 118

63

53

47

43

40

39

38

38

36

34

ITS

118

65 

50

63

52

47

40

1,765

56.9

1.18

1.36

June

36

30

30

39

70

*38

38

23

23

30

19

18

17

8U

115

70

45

38

34

27

22

29

39

34

37

37 

24

37

30

43

-

1,111

37.0

0.768

0.86

July

48

53

33

24

29

34

25

20

17

15_

18

58

99

49

27

30

23

*32

235

585

102

53

46

36

28

23

20

19

20

19

16

1,623

52.4

1.09

1.26

Aug.

17

19

15

17

15

13

13

T4

15

36

37

19

26

18

20

104

~B3 248

45

34

43

80

44

34

30

32 

27

32

20

18

16

1,153

37.2

0.773

0.89

Sept.

20

337

256

113

65

48

45

39

32

*28

25

25

23

32

87

73

43

33

29

26

34

33

21

21

20

23

20

30

25

21

-

1,594

53.1

1.10

1.33

in 70.7 Cfsm 1.47 In. 19.82

Water year 1950-51: Max 1,400 Min 5.9 Mean 94.6 Cfsm 1.96 In. 36.60

Peak discharge (base, 600 cfs). Nov. 26 (2 a.m.) 2,550 cfs (9.37 ft); Feb. 7 (8 p.m.) 970 cfs 

(6.55 ft); Mar. 31 (4 a.m.) 1,500 cfs (7.78 ft); Apr. 3 (time unknown) 1,050 cfs (6.80 ft).

* Discharge measurement made on this day.

Note. No gage-height record Dec. 12 to Jan. 15, Feb. 9-11; discharge estimated on basis of recorded range in stage, weather records, and records for stations on nearby streams.

288890 O - 54 - 18
266 HOUSATONIC RIVER BASIN

Housatonic River at Falls Village, Conn.

Location Lat 41°56'56", long. 73°22'05", on left bank 0.6 miles downstream from hydro-

 electric plant of Connecticut Power Co. at Falls Village, Litchfield County, 2 miles 

downstream from Hellenbeck River, and at mile 75.3.

Drainage area.--632 sq mi.

Records available.--July 1912 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 522.34 ft above mean sea level, datum of 

^929 (levels by Corps of Engineers).

Average discharge.--39 years, 1,057 cfs.

Extremes.--Maximum discharge during year, 7,270 cfs Apr. 4 (gage height, 11.68 ft); mini-

 mum, 108 cfs Sept. 11 (gage height, 0.93 ft); minimum daily, 165 cfs Oct. 4.

1912-51: Maximum discharge, 23,900 cfs Jan. 1, 1949 (gage height, 22.9 ft, from 

floodmarks); practically no flow at times when powerplant was shut down; minimum 

daily. 24 cfs Oct. 15, 1914, Sept. 18, 1932.

Remarks.--Records good except those for periods of ice effect or fragmentary gage-height

 record, which are fair. Low flow completely regulated by powerplant of Connecticut 

Power Co.

Revisions.--W 781: Drainage area.

Rating tatle, water year 1950-51, except periods of ice effect ( 

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

2.0 

7.0 

11.2

151

275

470

3,230

6,770

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

Cfsm

In.

Oct.

210

185

*185

Ib5

190

190

195

190

180

195

f470

f230

f400

f3b5

f335

f410

f280

255

262

258

270

23b

f260

f235

f290

f220

f250

f250

f220

f240

*f!99

7,820

252

0.399

0.46

Nov.

230

209

210

240

65O

568

664

418

393

315

278

272

242

196

290

267

255

286

225

254

764

922

792

530

598

5,060

5 , 000

4,830

*3,870

2,560

-

31,388

1,046

1.66

1.85

Dec .

1,950

1,500

1,240

1,340

2,b8O

2,920

2, 680

2,340

2 , 400

2,230

2,060

2,060

1,890

1,630

1,390

1,220

1,190

1,000

1,060

b900

b940

b920

878

874

79S

b630

b750

bbSO

LI 7 00

b990

b 1,100

44,938

1,450

2.29

2.64

Jan.

b970

893

994

1,410

2,060

2,000

1,340

1,140

b 1,400

bl,200

bl,100

1,110

1,060

b9bO

1,200

*1,890

1,770

1,490

1,370

1,400

1,600

1,650

1,420

1,510

1,950

2,060

1,770

1,440

1,250

1,130

b890

43,927

1,417

2.24

2.58

Feb.

bl,000

b2.,280

3,370

2,680

2,120

1,890

1,800

b2,510

b2,340

b2,170

2,ObO

1,890

*1,890

2,000

2,OOO

Dl,840

l,blO

2,520

3,100

2,8bO

2,510

3,650

3,650

2,920

2,340

2,120

1,950

1,950

_

_

-

65,020

2,322

3.67

3.82

Mar.

1,890

1,640

1,630

1,480

1,410

1,460

1,510

1,840

1,840 i.bso

1,390

1,280

1,470

1,500

2,060

2,120

1,950

1,840

1,600

1,940

*2,680

2,450

2,170

2,120

2,400

2,280

2,170

1,950

1,890

2,330

5,280

61,450

1,982

3.14

3.b2

Apr.

6,080

6,270

6,370

6,770

5,900

5,090

4,110

3,370

2,980

2,740

2,680

2,740

2,740

2 , 620

2,450

2,170

2,120

2,050

1,950

1,840

l,b7O

1,450

I,b50

2,060

2,060

1,950

1,890

1,840

1,470

1,340

-

90,430

3,014

4.77

5.32

May

1,590

1J070

1,000

938

886

798

851

742

714

752

1,140

1,220

1,150

1,020

899

810

688

659

672

358

794

618

914

1,290

1,260

1,010

1,030

1,170

1,000

830

28,783

928

1.47

1.70

June

735

720

605

560

808

*488

458

448

342

406

326

404

364

625

878

936

7B?

605

673

550

426

442

486

539

545

770

48b

46b

442

542

-

16,857

562

0.389

0.99

July

563

492

524

416

375

406

389

388

382

40O

422

517

1,110

966

820

511

532

*900

1,040

2,880

2,800

2,170

1,640

1,130

910

750

610

542

510

470

508

26,073

841

1.33

1.53

Aug.

478

423

437

428

344

348

454

404

358

390

430

440

489

468

426

836

1,390

1,420

1,070

580

708

858

753

644

511

542

530

553

446

442

410

18,010

581

0.919

1.06

Sept.

f4OO

995

1,420

1,240

9O4

664

566

568

404

434

462

404

342

358

6/6

832

658

614

430

440

378

371

324 32~9~

419

402

500

510

522

363

-

16,929

564

0.892

1.00

Calendar year 1950: Max 5,ObO Min 140 Mean 974 Cfsm 1.54 In. 20.91

Water year 1950-51: 1950-51; Max 6,770770_____Min Mil b s_____Mean Mea1,2573 Cfsm 1.95 In. 26.57_________ 26.57

Peak discharge (base, 5,600 cfs).--Nov. 26 (10 a.m.) 6,570 cfa (11.02 ft); Feb. 22 (8 p.m.) 3,870 

cfs (7.92 fb); Apr. 4 (1 a.m.) 7,270 cfs (11.68 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

f Fragmentary gage-height record, intake action faulty for part of day; discharge 

basis of records of powerplant of Connecticut Power Co.
HOUSATOMIC RIVER BASIN 267 

Tenmile River near Gaylordsville, Conn.

Location. Lat 41 C 39'32", long. 73°31'44", on right bank 0.1 mile downstream from Deuel 

Hollow Brook, 1.2 miles upstream from Connecticut-New York State line, 1.7 miles upstream from mouth, and 2| miles northwest of Gaylordsville, LitchCield County.

Drainage area. 204 sqmi.

Records available. December 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 304.4 ft above mean sea level, datum of 

1929 (levels by Connecticut Light & Power Co.).

Average discharge. 22 years, 282 cfs.

Extremes.--Maximum discharge during year, 2,630 cfs Mar. 31 (gage height, 6.32 ft); min- 

 imum, 27 cfs Oct. 7-9 (gage height, 0.77 ft); minimum daily, 27 cfs Oct. 8.

1929-51: Maximum discharge, 12,500 cfs Sept. 22, 1938 (gage height, 12.77 ft); 

minimum, 8 cfs (revised) Sept. 24, 26, 1939 (gage height, 0.52 ft); minimum daily, 9 cfs 

(revised) Sept. 23-26, 1939.

Revisions.--The maximum and minimum discharges for water year 1939 has been revised 

to 2,630 cfs Dec. 6, 1938 (gage height, 6.29 ft), and 8 cfs Sept. 24, 26, 1939 (gage 

height, 0.52 ft), respectively, superseding figures published in Water-Supply Paper 

871.

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

which are fair.

Revisions.--Revised figures of discharge for water year 1939, superseding those published 

in Water-Supply Paper 871, are given herewith:

Discharge, In cubic feet per second, water year October 1938 to September 1939

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

600

540

480

442

403

366

340

319

302

288

*274

258

247

232

226

*226

222

214

209

209

360

319

266

279

382

310

271

250

247

239

222

9,542

308

1.51

1.74

Nov.

209

204

192

187

182

182

199

197

242

239

214

204

199

194

185

180

194

226

228

376

322

288

277

277

b200

b255

b280

b300

b290

290

-

7,012

234

1.15

1.28

Dec.

296

279

271

600

945

2,180

2.230

1,560

1,320

1,410

1,380

1,120

970

845

730

600

572

568

552

520

465

428

370

379

362

340

362

b350

b310

b280

b260

22,854

737

3.61

4.16

Jan.

b250

b260

279

255

245

548

668

512

442

413

417

*372

319

b300

b290

b310

b320

282

266

245

255

282

246

260

234

b220

b210

b200

187

202

234

9,523

307

1.50

1.73

Feb.

237

232

264

b340

b290

b260

242

222

216

209

311

331

6290

b270

b750

1.610

b750

b680

685

1,070

1,350

895

685

624

552

760

1,170

1,120

_

-

-

16,415

586

2.87

2.99

Mar.

1.700

1,120

870

775

752

870

870

662

600

564

488

476

453

446

442

698

708

600

524

484

442

424

403

465

600

640

640

708

708

685

775

20,592

664

3.25

3.75

Apr.

685

1,260

1,380

1,070

920

895

*1,260

1,040

920

845

775

995

945

820

752

685

620

685

925

1.530

1,200

1,020

895

775

708

640

600

580

556

504

-

26,485

883

4.33

4.83

May

45O

413

386

353

322

304

285

263

255

285

263

234

224

214

209

197

185

171

162

155

148

153

197

219

194

164

135

139

217

237

175

7,308

2^5

1.16

1.34

June

150

129

115

111

117

102

101

92

115

117

92

92

86

205

216

187

137

110

92

83

80

72

66

65

62

66

59

53

51

65

-

3,088

103

0.505

0.56

July

94

91

76

65

56

51

48

50

66

56

46

40

38

37

36

33

31

29

28

27

26

25

25

23

23

22

24

26

27

29

32

1,280

41.3

0.202

0.23

Aug.

28

24

24

26

56

44

34

30

28

34

30

26

25

31

26

"23

26

31

29

40

38

36

35

33

27

26

25

21

20

21

24

921

29.7

0.146

0.17

Sept.

24

23

21

21

23

22

21

19

19

19

19

24

25

17

15

13

12

11

11

11

11

10

9

9

9

9

20

23

31

35

536

17.9

0.088

0.10

Calendar year 1938: Max 9,380 Min 102 Mean 519 Cfsm 2.54 In. 34.54

Water year 1938-39: Max 2,230 Min 9 Mean 344 Cfsm 1.69 In. 22.88

Calendar year 1939: Max 1,700 Mln 9 Mean 256 Cfsm 1.25 In. 17.05

Peak discharge (base, 1,400 cfs). --Dec. 6 (9 to 10 p.m.) 2,630 cfs (6.29 ft); Feb. 16 (2 to 3 a.m.)

1,940 cfs (5.40 ft); Feb. 21 (6 a.m.) 1,560 cfs (4.84 ft); Mar. 1 (10 a.m.) 1,870 cfs (5.28 ft); Apr.

2 (12 p.m.) 1,590 cfs (4.88 ft); Apr. 20 (12 m.) 1,590 cfs (4.91 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice .
268 HOUSATONIC RIVER BASIN

Tenmile River near Gaylordsville, Conn. Continued

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

Day

1

2

3

4

5

6

7

B

9

10

11 

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

34

33

32

31

30

30

28

27,

28

38

44 

55

63

65

58

52

47

45

42

40

39

38

42

46

45

44 

42

41

40

40

*40

1,279

41.3

0.202

0.23

Nov.

40

39

40

63

203

199

142

121

104

92

83 

76

72

66

68

66

70

74

69

72

182 

226

180

164

260

1.410 

1,100

798

685

*576

-

7,340

245

1.20

1.34

Dec.

488

435

410

559

1,250

920

752

945

995

820

845 

798

662

588

540

532

504

457

b380

b350

b340 

b310

280

310

320

280 

240

220

280

340

360

16,490

532

2.61

3.01

Jan.

320

300

300

580

820

650

600

520

460

480

460 

*430

406

382

639

845

662

600

600

662

730 

620

b510

772

895

685 

588

508

484

b420

b280

17,208

555

2.72

3.14

Feb.

b430

970

708

560

488

431

996

1.750

1,070

775

660 

600

*710

945

708

620

623

1,500

1,100

945

970 

1,530

1,200

895

775

775 

708

662

.

-

24,084

860

4.22

4.39

Mar.

6OO

560

528

496

512

524

596,

640

572

469

424

428

442

536

685

580

532

488

450

652

752 

*640

600

620

620

532 

476

453

457

856

3.470

19,190

619

3.03

3.49

Apr.

1,760

1,320

1,840

2.150

1,590

1,290

1,070

945

845

775

775 

730

752

685

592

536

544

492

453

413

375 

359

516

504

424

406 

366

337

340

331

-

23,515

784

3.84

4.28

May

*299

279

260

247

229

224

214

204

197

192

202 

296

285

237

209

192

175

171

157

146

140 

135

135

220

500

220 

180

240

220

280

220

6,705

216

1.06

1.22

June

190

170

165

160

220

*200

182

162

155

137

127 

115

108

164

241

206

173

150

125

113

106 

97

95

99

92

84 

83

80

86

97

-

4,188

140

0.686

0.77

July

106

125

101

84

91

83

75

66

62

55

51 

55

81

91

74

66

60

*53

68

113

108

99

86

70

60 

53

52

55

52

50

2,374

76.6

0.375

0.43

Aug.

85

80

81

84

78

62

50

45

41

42

51 

58

60

51

46

62

248

224

148

115

111 

175

133

99

84

78 

75

68

59

55

50

2,698

87.0

0.426

0.49

Sept.

53

9T

254

180

144

119

108

95

86

72

66 

65

62

59

106

204

129

101

87

78

68 

63

60

58

*56

55 

55

53

58

56

-

2,727

90.9

0.446

0.50

Calendar year 1950: Max 1,260 Min 27 Mean 269 Cfsm 1.32 In. 17.89

Water year 1950-51: Max 2,470 Min 27 Mean 350 Cfsm 1.72 In. 23.29

Peak dlscharne (base, 1,400 cfs).-

cfs (5.97 ft)j Feb. 18 (5:30 p.m.) 1

-Nov. 26 (6 p.m.) 1,560 cfs (4.86 ft); Feb. 7 (9:30 p.m.) 2,390 

700 cfs (5.06 ft); Feb. 22 (3:30 p.m.) 1,620 cfs (4.96 ft);

Mar. 31 (5 a.m.) 2,630 cfs (6.32 ft); Apr. 4

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--No gage-height record Dec. 23 to Jan. 12 and May 21 to June 6; discharge computed on basis 

of recorded range in stage, weather records, and records for stations on Wappinger Creek near Wappingers Falls, H. Y. and Housatonic River at Gaylordsville, Conn.
HOUSATONIC RIVER BASIN 269

Housatonic River at Gaylordsville, Conn.

Location. Lat 41°39'11", long. 73°29"25", on left bank 0.4 mile downstream from hydroelectric plant of Connecticut Light & Power Co., 0.5 mile upstream from bridge on 

U. S, Highway 7 at Gaylordsville, Litchfield County, ij miles downstream from Tenmile 

River, and at mile 50.6.

Drainage area. 994 sq mi.

Records available.--October 1900 to December 1904 (fragmentary). January 1905 to Decem- 

 ber 1908 (gage heights only), January 1909 to December 1912 (fragmentary), January

1913 to October 1914 (gage heights only), November 1914 (fragmentary), July 1940 to

September 1951.

Gage.--Water-stage recorder. Datum of gage is 236.78 ft above mean sea level, datum of 

""^1929. October 1900 to November 1914, chain gage on covered bridge 0.6 mile downstream 

at different datum.

Average discharge. 11 years (1940-51), 1,564 cfs.

Extremes.--Maximum discharge during year, 11,600 cfs Apr. 4 (gage height, 9.32 ft); minimum daily, 120 cfs Sept. 23.

1900-1914, 1940-51: Maximum discharge, 32,300 cfs Jan. 1, 1949 (gage height, 

14.85 ft); minimum observed, about 30 cfs Oct. 28, 1914 (gage height, 2.18 ft, site 

and datum then in use); minimum daily since July 1940, about 60 cfs Aug. 31, 1944, 

Sept. 20, 1949.

Flood of May 1854 reached a stage of 21 ft 3 in., former site and datum, reported 

by observer in 1902. Flood of Sept. 22, 1938, reached a stage of 14.5 ft, from floodmarks, at present site (discharge, 37,000 cfs, by computation of peak flow over dam 

2| miles upstream, adjusted for flow from intervening area).

Remarks.--Records good. Ordinary flow regulated by powerplants above station.

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

115

236

447

710

3.0 

4.0 

6.0 

9.0

1,050

1,940

4,600

10,800

Discharge, in cubic feet per second, water year October 1350 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.

Oct.

3"11 

306

250 

182

?T3

270

293

260

256

420

276

614

10T3

486

426

445

450

315

274

338

328

323

300

338

272

370

270

297

308

304

288

10,183

328

0.330

0.38

Nov.

288 

342

292 

443

848

1,000

846

820

565

541

479

622

197

237

322

418

440

543

638

111

849

1,290

1,280

968

951

7,760

7,170

6,380

5,630

3,970

-

46,250

1,542

1.55

1.73

Dec.

2,860 

2,380

2,000 

2,420

4,760

4,600

4,120

4,120

,120

,600

,530

,320

,990

,560

,320

,160

,000

,790

,740

,500

,420

,460

,460

,460

,480

,270

,070

1,310

,280

,690

,790

74,580

2,406

2.42

2.79

Jan.

1,690 

1,550

1.420 

2,380

3,460

3,120

2,920

2,320

1,840

2,000

1,920

1,890

1,820

1,620

2,220

*3,320

2,860

2,560

2,440

2,560

2,800

2,680

2,220

2,990

3,460

3,320

2,800

2,320

2,220

1,940

1,470

74,130

2,391

2.41

2.78

Feb.

1,740 

3,670

3,740 

3,600

3,060

2,620

3,750

4,930

3,970

3,320

3,120

3,060

*3,180

3,670

3,250

2,920

2,740

4,930

5,100

4,600

4,280

6,380

6,000

4,760

3,820

3,460

3,250

3,120

_

_

-

106,040

3,787

3.81

3.97

Mar.

2,990 

2,860

2,560 

2,380

2,270

2,380

2,500

2,920

2,860

2,560

2,220

2,050

2,270

2,560

3,250

3,250

2,990

2,740

2,450

3,180

*3,970

3,820

3,390

3,250

3,530

3,320

3,120

2,920

2,800

3,860

9,660

96,880

3,125

3.14

3.62

Apr.

9,350 

8,890

10,100 

10,800

9,120

7,800

6,380

5,450

4,600

4,280

4,120

4,120

4,280

3,970

3,670

3,320

3,180

3,060

2,860

2,680

2,440

2,160

2,740

2,990

2,990

2,800

2,620

2,500

2,220

2,060

-

137,550

4,585

4.61

5.14

May

*2,000

1,790

,640 

,550

,550

,370

,330

,290

,330

,210

,170

,640

,840

,640

,580

,380

,260

,160

,050

970

960

762

1,390"

,260

,840

,690

,500

,640

,740

,690

,460

44,382

1,432

1.44

1.66

June

1,120 

1,150

1,010 

940

1,210

*1,160

870

778

686

590

614

522

5T5

916

1,190

1,570

1,220

988

930

865

706

622

662

698

732

796

935

554

649

690

-

25,792

860

0.865

0.97

July

768 

818

707 

699

619

524

588

456

475

450

492

544

960

1,180

1,070

802

590

*780

1,170

2,630

3,250

2,560

1,940

1,370

1,170

940

756

762

662

580

536

30,828

994

1.00

1.15

Aug.

720 

522

465 

562

404

433

408

512

460

397

501

532

651

554

536

684

1,550

1.720

1,380

990

738

1,100

1,040

832

670

678

615

565

620

428

448

21,715

700

0.704

0.81

Sept.

544

760

1,720 

1,500

1,210

956

765

738

616

408

502

590

500

398

688

1,120

920

798

688

446

581

646

120

355

388

520

525

578

610

535

-

20,725

691

0.695

0.78

Calendar year 1950: Max 7,760 Min 121 Mean 1,490 Cfsm 1.50 In. 20.35

Water year : Max 10,800 Min 120 Mean 1,888 Cfsm 1.90 In. 25.78

Peak discharge (base, 4,500 cfs). Nov. 26 (4 p.m.) 9,820 cfs (8.55 ft); Dec. 5 (11:30 p.m.) 5,100 

cfs (6.26 ft); Feb. V (9 p.m.) 7,170 cfs (7.42 ft); Feb. 18 (7:30 p.m.) 5,630 cfs (6.58 ft); Feb. 22 

(6 p.m.) 6,770 cfs (7.18 ft); Apr. 4 (3:30 a.m.) 11,600 cfs (9.32 ft).

* Discharge measurement made on this day.
370 HOUSATONIC RIVER BASIN 

Still River near Lanesville, Conn.

Location.--Lat 41°31'12", long. 73°25'07", on left bank at upstream side of highway 

bridge, a quarter of a mile east of U. S. Highway 7, 1.1 miles south of Lanesville, 

Litchfield County, 3 miles upstream from mouth, and 4 miles south of New Milford.

Drainage area. 68.5 sq mi.

Records available.--October 1931 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 213.05 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--20 years, 114 cfs.

Extremes. Maximum discharge during year, 1,080 cfs Mar. 31 (gage height, 7.95 ft); minimum, 20 cfs Sept. 30; minimum gage height, 1.22 ft Oct. 9.

1931-51: Maximum discharge, 4,410 cfs Sept. 22, 1938 (gage height, 10.88 ft), 

from rating curve extended above 1,900 cfs by logarithmic plotting; minimum, 5 cfs 

Oct. 20, 1946.

Remarks. Records good except those for periods of ice effect, which are fair. Some 

diurnal fluctuation caused by mills at Brookfield and Danbury.

Revisions (water years). W 781: Drainage area. W 801: 1931-35. W 851: 1936. 

W 871: 1938. W 1031: 1944. W 1081: 1946.

Rating table, water year 1950-51, except periods of ice effect ( 

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

(Shifting-control method used May 25 to Sept. 3O)

1.2 

2.0 

3.0 105

182

6.0

7.0 

7.4

406

630

780

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

Cfsrn

In.

Oct.

25

23

25

25

25

25

25

23

22

30

49

42

50

41

33

31

32

32

32

31

31

27

28

36

35

33

31

30

27

27

*29

955

30.8

0 . 450

0.52

Nov.

29

29

30

35

194

166

87

64

55

50

46

40

37

38

36

36

37

35

32

31

86

99

64

49

73

353

399

215

160

*125

-

2,730

91.0

1.33

1.48

Dec.

102

87

82

103

518

312

178

189

305

266

215

215

173

140

125

128

148

132

b!05

b96

b87

b80

82

84

93

b82

b80

b77

blOO

282

3O5

4,771

154

2.25

2.59

Jan.

220

164

144

222

366

308

210

182

b!6O

b!40

b!25

*118

114

LOS

226

428

331

196

196

215

196

164

b!20

228

460

428

245

178

173

178

b!55

6,695

216

3.15

3.63

Feb.

b!95

305

311

b215

160

144

257

705

700

400

290

230

250

*305

261

205

191

360

413

323

294

456

540

398

272

25O

240

220

-

_

-

8,892

318

4.64

4.83

Mar.

200

196

205

196

250

278

250

230

200

168

148

144

144

188

353

317

220

182

164

225

341

*283

225

210

220

186

160

152

148

196

I2i

7,083

228

3.33

3.84

Apr.

740

540

540

760

585

460

386

311

272

245

230

215

240

250

200

L73

182

173

156

148

132

122

182

245

178

148

132

122

118

118

-

8,303

277

4.04

4.51

May

*108

99

93

87

84

82

80

80

75

73

79

178

148

96

82

76

70

66

63

61

60

63

66

174

286

147

87

118

1O2

140

118

3,143

101

1.47

1.70

June

84

72

64

62

96

82

*66

58

54

52

50

48

48

8O

178

114

77

62

58

52

48

46

45

52

49

41

48

127

105

132

-

2,150

71.7

1.05

1.17

July

93

76

61

52

74

77

55

47

43

43

43

46

188

134

68

54

51

*50

52

62

54

45

46

50

45

43

4i

46

82

64

52

1,937

62.5

0.912

1.05

Aug.

58

48

43

41

37

33

34

35

37

37

66

44

39

39

37

71

154

160

74

52

50

144

104

61

52

97

74

62

52

46

42

1,923

62.0

0.905

1.O4

Sept.

45

48

41

38

38

35

35

34

29

26

28

29

29

27

33

47

33

30

29

28

28

28

24

24

*25

29

27

25

24

£1

-

937

51.2

0.455

0.51

Calendar year L95O: Max 5O2 Min 22 Mean 90.6 Cfsrn 1.32 In. 17.97

Water year 195O-51: Max 760 Min 21 Mean 136 Cfsm 1.99 In. 26.87

Peak discharge (base. 600 cfs).--Feb. 9 (about 3 a.m.) 99O cfs (7.79 ft); Feb. 23 (4 a.m.) 6OO cfs 

(6.88 ft); Mar. 3L (7 p.m.) 1,O8O cfs (7.95 ft); Apr. 4 (7 a.m.) 855 cfs (7.54 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
HOUSATONIC RIVER BASIN 271

Shepaug River at Woodville, Conn.

Location. Lat 41°43'24", long. 73°17'37", at left end of dam at outlet of Shepaug Reservoir, 1 mile north of Woodville, Litchfield County, and 3.5 miles upstream from Bantam 

River.

Drainage area. 38.0 sq mi.

Records available. October 1935 to September 1951. 

gage.--Non-recording gage read once daily. 

Average discharge.--16 'years, 81.7 cfs (adjusted).

Extremes. Maximum discharge observed during year, 1,430 cfs Mar. 31; no flow Nov. 4-25.

 T335-51: Maximum discharge observed, 6,000 cfs Sept. 21, 1938; no flow at times.

Remarks. Records good. Discharge computed on basis of flow over spillway, through flood-

 gates, and through fountain at toe of dam. Rating curves for floodgates and fountain 

computed by means of a temporary sharp-crested weir below dam. Rating curve for spillway computed for discharges below 18.5 cfs by means of same weir, and for discharges 

above 18.5 cfs by a formula selected to fit the spillway-crest sections. Water diverted from Shepaug River for municipal supply of Waterbury. Flow regulated since September 1933 by Shepaug Reservoir (see p. 279).

Cooperation. Records furnished by Bureau of Engineering, city of Waterbury. 

Revisions (water years).--W 971: 1936-42.

ublc feet per second, water year October 1950 to Septembe

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 (1-)

Oct.

2.4

2.4

2.4

2.4

2.4

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2. 

2.

2.

2.

2.

2.4

74.4

2.40

+5.92

Nov.

2.4

2.4

2.4

1.2

0

0

0

0

o

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

200

1,150 

55TT

315

226

180

-

2,545.4

84.8

+29.68

Dec.

141

113

95

250

457

268

195

300

348

226

218

187

155

119

107

98

84

71

67

57

53

50

48

55

60

50 

42

40 100"

162

113

4,329

140

-0.24

Jan.

107

98

98

240

279

180

141

113

98

87

79

76

74

71

240

296

191

145

150

175

195

128

104

360 3T5~

191 

128

110

92

67

59_

4,687

151

-0.24

Feb.

90

191

158

125

98

79 330"

424

296

198

176

131

170

234

198

125

200

470

284

238

390

605 3T5-

180

165

158

151

151

-

-

-

6,340

226

+0.44

Mar.

131

113

101

95

105

125

160

162

145

101

90

82

10T

260

273

162

151

138

119

390

302

226

180

220

238

180 

138

128

140

560

1,550

6,872

222

+1.73

Apr.

576

370

750

595

362

263

218

180

155

138

113

98

187

165

135

113

125

110

98

82

82

71 ISO"

180

138

125 

95

84

87

74

-

5,949

198

-2.20

May

67

57

55

49

46

44

42

40

38

28

20 lT5"

57

37

26

20

20

31

29

29

31

29

28

128

151

64 

46

64

49

69

49

1,536

49.5

+4.55

June

38

31

26

35

Zi

49

20

5.3

2.5

2.4

2.4

2.4

2.4

4.5

42

24

18

21

26

24

20

10

3.4

4.6

2.4

2. 

2.

2.

2.

2.

-

507.3

16.9

+9.37

July

2.4

2.4

2.4

2.4

2.4

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4 

2.4

2.4

2.4

2.4

2.4

74.4

2.40

+8.93

Aug.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4 

2.4

2-. 4

2.4

2.4

2.4

74.4

2.40

+8.31

Sept.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4 

2.4

2.4

2.4

2.4

-

72.0

2.40

+2.92

Adjusted for change in contents and diversion

Mean 

Cfsm 

In.

8.32

0.219 

0.25

114 

3.00 

3.35

Calendar year 1950; 

Waber year 195O-51:

140 

3.68 

4.24

151 

3.97 

4.58

226

5.95 

6.19

224 

5.89 

6.79

196 

5.16 

5.76

54.0 

1.42 

1.64

Observed

Max 1,150 Min 0 Mean 76.7 

Max 1,550 Min 0 Mean 9O.6

26.3

0.692 

0.77

11.3 

0.297 

0.34

10.7 

0.282 

0.33

5.32 

0.140 

0.16

Adjusted

Mean 85.5 Cfsm 2.25 In. 30.51 

Mean 96.4 Cfsrr 2.54 In. 34.40

t Net diversion and change in contents, equivalent in cubic feet per second, in Shepaug Reservoir 

furnished by city of Waterbury.

Note.--Stage-discharge relation affected by ice Dec. 22-29.
272 HOUSATONIC RIVER BASIN

Shepaug River near Roxbury, Conn.

Location. Lat 41°32'59", long. 73°19'49", on right bank at downstream side of highway 

bridge a half a mile south of Roxbury Station, l£ miles southwest of village of Roxbury, Litchfield County, and 2.4 miles upstream from Jacks Brook.

Drainage area.--133 sq mi.

Records available.--October 1930 to September 1951.

3. Water-stage recorder. Datum of t 

F929 (levels by Corps of Engineers).

Gage. Water-stage recorder. Datum of gage is 281. £ 

T9

ft above mean sea level, datum of

Average discharge. --21 years, 235 cfs (adjusted after Oct. 1, 1935).

Extremes. Maximum discharge during year, 3,980 cfs Mar. 31 (gage height, 7.94 ft); minimum discharge, 10 cfs Oct. 7 (gage height, 1.49 ft);

1930-51: Maximum discharge, 10,500 cfs Sept. 21, 1938 (gage height, 12.8 ft, from 

floodmarks), from rating curve extended above 3,500 cfs by logarithmic plotting on 

basis of two computations of peak flow over dam; minimum, 5 cfs Oct. 8, 1948, Aug. 28 

and Sept. 12, 13, 1949.

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

Water diverted from Shepaug Reservoir for municiapl supply of city of Waterbury. Flow 

regulated by Shepaug Reservoir (see p. 279). Diurnal fluctuations from an unknown 

cause during low flow.

Revisions (water years ).--W 801: 1931-36. W 971: 1936, 1939-40, 1942.

Rating table, water year 1950-51, except period of ice effect (gage 

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

1.5

1.6

1.7

1.8 39

1.9

2.0 

2.4 

3.0

4.0 

5.0

152

350

835

1,460

2,920

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

Total

Mean

(t)

Oct.

14

14

21

14

16

12

15

13

12

43

34

43

47

37

23

26

27

25

20

23

21

14

21

31

19

25

17

23

16

18

*32

716

23.1

+5.92

Nov.

15

23

14

29

300

110

79

70

65

62

55

52

49

47

46

46

48

46

42

44

192

110

84

79

458

Z.070

945

780

700

»565

-

7,225

241

+29.68

Dec.

484

426

390

625

1.000

650

540

700

808

625

650

565

480

417

386

374

350

314

295

263

299

295

270

236

249

b242

b220

b202

bSTO

650

453

13,828

-446

-0.24

Jan.

382

354

330

606

625

471

444

386

350

346

326

*292

273

256

621

650

489

426

430

471

494

408

350

796

780

565

462

399

382

334

270

13,768

444

-0.24

Feb.

376

625

466

399

358

322

1,010

1,010

700

575

502

458

489

 575

507

422

493

1,070

752

650

816

1.555

918

700

625

575

535

502

_

_

-

17,785

635

+0.44

Mar.

458

426

399

378

394

404

444

480

440

362

338

338

342

404

650

489

448

417

390

829

752

600

»535

575

600

494

440

408

430

1,080

gjjSlO

17,654

569

+ 1.73

Apr.

1,495

1,120

2,060

1,620

1,150

945

780

675

600

530

498

458

555

484

422

382

382

350

326

299

270

256

474

453

358

334

 299

277

284

263

-

18,399

613

-2.20

May

236

220

199

188

179

166

160

150

140

135

148

350

230

180

155

140

130

125

120

125

130

120

124

480

350

215

160

230

180

290

220

5,975

193

+4.55

June

160

125

100

110

200

140

»105

81

68

63

58

55

48

122

140

119

92

90

82

81

73

66

60

57

48

39

47

44

49

57

-

2,579

86.0

+9.37

July

49

47

39

35

58

44

36

27

28

26

25

28

36

25

21

18

18

18

*23

37

25

20

31

24

21

15

17

16

26

22

19

874

28.2

+8.93

Aug.

55

28

19

20

18

16

14

14

15

16

18

22

84

27

20

22

93

44

31

25

49

"53 150

39

37

31

31

34

22

28

21

1,096

35.4

+8.31

Sept.

29

102

70

43

38

36

46

48

43

40

38

38

37

35

40

44

42

40

38

36

34

32

31

30

28

29

26

25

25

20

-

1,163

38.8

+2.92

Adjusted for diversion and change in reservoir contents

Mean

Cfsm 

In.

29.0 

0.218 

0.25

271 

2.04 

2.28

Calendar year 1950: 

Water year 1950-51:

446 

3.35

3.86

444 

3.34

3.85

635 

4.77 

4.97

571 

4.29 

4.95

611 

4.59 

5.12

198 

1.49 

1.72

Observed

Max 2,070 Min 10 Mean 229 

Max 2,910 Min 12 Mean 277

Peak discharge (base. 1,500 cfs). 

(6.87 ft); Feb. 17 (12 p.m.) 

(3 a.m.) 3,980 cfs (7.94 ft)

1,690 cl 

Apr. 3

95.4 

0.717 

0.80

37.1 

0.279 

0.32

43.7 

0.329

0.38

41.7 

0.314 

0.35

Adjusted

Mean 

Mean

238 

283

Cfsm 1 

Cfsm 2

79 In. 24.26 

13 In. 28.85

Nov. 26 (5 a.m.) 3,280 cfs (7.24 ft); Feb. 7 (7 p.m.) 3,010 cfs 

s (5.32 ft); Feb. 22 (3 a.m.) 1,610 cfs (5.18 ft); Mar. 31 

(2 p.m.) 2,570 cfs (6.42 ft).

Discharge measurement made on this day.

t Net diversion and change in contents equivalent in cubic feet per second, in Shepaug Reservoir; 

furnished by city of Waterbury.

Note. No gage-height record May 12 to June 7; discharge estimated on basis of recorded range in 

stage, weather records, and records for Pomperaug River at Southbury, Conn.
HOUSATONIC RIVER BASIN 273

Pomperaug River at Southbury, Conn.

Location.--Lat 41°28'50", long. 73°13'30", on right bank 200 ft upstream from highway 

bridge, 800 ft downstream from Bullet Hill Brook, 0.6 mile west of Southbury, New 

Haven County, and 5.8 miles upstream from mouth.

Drainage area. 75.3 sq mi.

Records available . June 1932 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 165.60 (revised) ft above mean sea level 

(levels by Corps of Engineers).

Average discharge.--19 years, 123 cfs.

Extremes. Maximum discharge during year, 3,160 cfs Feb. 7 (gage height, 10.05 ft), from 

rating curve extended above 1,200 cfs as explained below; minimum, 11 cfs Sept. 30 

(gage height, 2.54 ft).

1932-51: Maximum discharge, 7,420 cfs Sept. 21, 1938 (gage height, 16.0 ft, from 

floodmarks), from rating curve extended above 1,200 cfs on basis of computation of 

peak flow over dam 2 miles downstream; minimum, 3.3 cfs Aug. 27, 1949 (gage height, 

2 .32 ft).

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

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

papers indicated.

Water-Supply 

Paper

741..........

781. .........

821..........

Water 

year

1 QQ9 _QQ

Date

Dec 20

Gage height 

( feet)

9 75

7.4

8.5

Discharge 

(cfs)

2 opn

1,570

2 ' 200

Remarks.--Records excellent except those for periods of xice effect, which are good. Infrequent regulation at low flow by mill above station.

Revisions.--W 781: Drainage area. W 851: 1934(M) , 1936(M). Revised figures of discharge for water years 1933, 1934, superseding figures published in Water-Supply Papers 

741, 756, are given herewith:

Day 

(water year)

1932-33

Nov . 10 .....

19.. ...

20 .....

Dec . 1 .....

Z. ....

3.. ...

4... ..

5. ....

6.....

7. ....

8.....

9.....

10 .....

11 .....

12.....

13. ....

14.... .

15. ....

16.....

23.....

24. ....

25.....

26.. ...

27.. ...

28.....

29... ..

30 .....

Discharge 

(cfs)

1,320

862

1,130

141

139

134

129

129

120

114

119

102

90

75

80

91

86

79

70

74

92

152

210

155

211

192

153

Month C

November 1932 .............

December ..................

January 1933 ..............

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

May.......................

Water year 1932-33......

Calendar year 1933 ......

September 1934 ............

Water year 1933-34......

Calendar year 1934 ......

Day 

(water year)

1932-33

Dec . 31 .....

Jan . 1 .....

2. ....

3. ....

4. ....

5.....

6. ....

7. ....

8.....

9.....

10.....

11. ....

12 .....

13.. ...

14. ....

15. ....

16.....

17.....

18.. ...

19 .....

20.....

21.. ...

22.....

23.. ...

24.....

25.....

26.....

Discharge 

(cfs)

146

110

75

80

91

98

90

84

82

79

105

107

159

100

80

75

76

84

91

91

127

107

103

155

136

108

103

f s -days Maximum Minimum

10,270 1,320 100

3,406 211 48

3,016 159 55

8,043 737 106

2,589 168 40

47,011.3 1,320 7.0

35,521.3 737 7.0

7,466 2,150 11

44,485 2,150 11

55,662 2,150 11

Day 

(water year)

1932-33

Jan. 27 .....

28. ....

29.....

Mar. 21. ....

May 1 .....

2.....

3. ....

4. ....

5. ....

6.....

7.. ...

8.... .

9.....

10 .....

11.....

12.....

13. ....

14.....

15.....

16. ....

17.....

18.....

28. ....

1933-34

Sept. 17.....

Mean

342

110

97.3

259

85.2

129

97.3

249

122

152

Discharge 

(cfs)

110

110

85

737

136

125

125

168

139

122

117

102

95

142

132

105

95

88

78

70

68

57

59

2,150

Per square Runoff In 

mile Inches

4.51 5.03

1.46 1.68

1.29 1.49

3.42 3.94

1.13 1.30

1.71 23.21

1.29 17.55

3.31 3.69

1.62 21.97

2.02 27.50
HOUSATONIC RIVER BASIN

Pomperaug River at Southbury, Conn.--Continued

Rating table, water year 1950-51, except periods of ice effect (gage 

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

2.5 

2.8 

3.2 

3.9

4.5 

5.5 

6.7

337

725

1,320

185

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.

Oct.

15

14

14

13

IS

12

12

12

12

26

33

32

39

28

24

21

20

19

18

18

16

16

17

20

20

19

18

17

17

16

16

586

18.9

0.251

0.29

Nov.

*16

15

15

25

196

83

54

44

39

33

31

29

26

25

24

24

24

24

23

24

114

67

48

41

154

806

252

206

198

154

-

2,814

93.8

1.25

1.40

Dec.

*132

116

111

228

407

200

161

294

282

198

228

189

161

139

132

150

142

126

b!05

b98

b90

b90

95

98

98

b83

b76

b69

b!95

410

238

5,141

166

2.20

2.54

Jan.

b!85

b!65

157

472

346

230

224

198

b!65

b!60

b!40

146

132

123

615

394

238

210

238

252

242

*177

b!50

663

415

273

215

185

204

179

bl!6

7,609

245

3.25

3.75

Feb.

b!85

554

233

187

165

148

843

968

b330

b260

233

226

278

*286

213

183

204

919

347

284

371

842

402

278

250

242

233

210

-

_

-

9,874

353

4.69

4.88

Mar.

196

198

193

191

221

240

268

265

213

175

161

163

159

386

331

235

206

183

167

459

295

245

*224

257

235

193

173

169

195

475

1.300

8,371

270

3.59

4.14

Apr.

495

377

979

575

412

340

295

262

242

221

226

208

281

215

185

173

183

159

150

141

126

121

294

198

161

148

*128

118

135

118

-

7,666

256

3.40

3.79

May

103

95

88

83

80

76

73

69

65

61

91

189

114

88

74

66

59

54

52

55

56

53

54

301

177

106

89

98

100

219

123

3,011

97.1

1.29

1.49

June

89

73

66

73

198

108

79

65

59

54

51

48

45

132

130

88

67

59

53

46

42

40

41

45

*36

33

38

39

46

59

-

2,002

66.7

0.886

0.99

July

50

45

36

31

60

43

35

30

27

26

24

32

47

33

27

24

23

22

*21

26

23

20

29

27

21

19

18

20

32

26

21

918

29.6

0.393

0.45

Aug.

60

41

28

26

23

20

18

18

18

20

34

23

31

26

21

27

66

42

30

26

24

48

33

24

22

29

24

20

18

17

16

873

28.2

0.375

0.43

Sept.

21

42

37

29

24

21

20

18

16

15

15

15

14

14

20

28

19

16

15

14

13

13

12

12

12

14

13

12

12

11_

-

536

17.9

0.238

0.27

Calendar year 1950 : Max 1,210 Min 12 Mean 106 Cfsm 1.41 In. 19.08

Water year 1950-51 : Max 1,300 Min 11 Mean 135 Cfsm 1.79 In. 24.42

Peak discharge (base. 1,400 cfs).--Nov. 26 (4:30 a.m.) 1,570 cfs (7.23 ft); Feb. 7 (12 p.m.) 3,160 

cfs (10.05 ft): Feb. 18 (6:30 a.m.) 1,790 cfs (7.58 ft); Mar. 31 (6:30 a.m.) 2,340 cfs (8.57 ft); 

Apr. 3 (2 p.m.) 1,52O cfs (7.13 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.
HOOSATONIC RIVER BASIN 275

Housatonic River at Stevenson, Conn.

Location. Lat 41°23'05", long. 73°09'55", on left bank in New Haven County, 0.2 mile 

downstream from dam of Connecticut Light & Power Co. at Stevenson, Fairfield County, 

0.2 mile upstream from Eightmile Brook, and at mile 19.2.

Drainage area.--1,545 sq mi.

Hecoras available.--August 1928 to September 1951.

uage. water-stage recorder. Datum of gage is 24.98 ft above mean sea level, datum of 

T929 (levels by Corps of Engineers).

Average discharge. 23 years, 2,498 cfs (adjusted for storage and diversion since 1936).

Extremes. Maximum discharge during year, 21,000 cfs Apr. 3 (gage height, 13.26 ft); mini-

 mum, 54 cfs Oct. 3 (gage height, 0.62 ft); minimum daily, 70 cfs Oct. 22.

1928-51: Maximum discharge, 69,500 cfs Mar. 12, 1936 (gage height, 23.5 ft, from 

floodmarks), from rating curve extended above 35,000 cfs on basis of computation of 

peak flow at Stevenson and Derby dams and slope-area determination at gaging station; 

practically no flow at times, result of regulation.

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

good. Ordinary flow completely regulated by Stevenson hydroelectric plant. Flow regulated by Candlewood Lake, Lake Zoar and Shepaug Reservoir having a combined usable 

capacity of 6,600,000,000 cu ft (see p.279 ), and by small diversion from the basin at 

Shepaug Reservoir.

Revisions (water years). W 711: 1929(M). W 781: Drainage area.

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

and discharge, In cubic feet per second)

0.8 

1.0 

1.5 

2.0 

3.0

161

285

660

9.0 

12.2

1,250

2,130

8,7OO 

17,200

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

(t)

Oct.

435

464

777

674

418

478

544

88

545

1,200

780

860

916

672

260

658

994

a700

a680

608

770

70

7^5

610 

530

558

282

488

585

485

510

18,164

586

-111

Nov.

*455 

428

455

712

2,090

1,280

858

1,040

978

465

560

520

859

814

490

558

608

610

710

670

1,850

1,560

995

1,010 

1,370

10,700

10,460

8,260

7,600

5,880

-

64,525

2,151

+254

Dec.

*4,700 

5,780

2,530

3,100

6,560

6,600

S,7oo'

6,070

6,530

5,530

5,180

5,180

4,500

4,330

3,550

3,680

2,870

2,750

2,580

2,640

1,950

2,250

2,560

2,140 

1,580

1,690

1,860

1,760

3,380

3,680

4,080

114,690

5,700

+170

Jan.

2,180 

2,460

2,720

5,820

6,020

5,240

4,760

4,060

5,500

5,280

3,620

3,140

2,840

2,960

4,000

5,460

5,020

4,860

4,480

4,410

4,280

*4,720

3,930

4,840 

6,810

6,060

5,880

3,630

4,150

4,020

2,910

130,060

4,195

+45

Feb.

3,120 

4,940

6,240

5,880

4,680

4,320

5,320

a!2,000

a7 , 800

a6,200

a5,200

a5,000

a5,000

a5,600

a5,800

a5,000

a5,000

a7,200

*a8,000

7,400

6,900

11,500

9,820

7,820 

6,600

5,780

6,090

5,720

-

-

-

179,750

6,419

+64

Mar.

5,160 

5,140

4,150

4,520

5,860

4,860

4,700

4,540

4,700

4,700

5,820

3,350

3,560

4,380

5,730

6,210

5,440

4,350

3,820

5,590

6,060

6,240

*6,100

4,960 

5,630

5,190

4,990

4,740

5,010

5,760

17^100

164,520

5,501

-28

Apr.

14,800 

15,400

16,600

16,900

15,700

11,700

9,450

8,190

7,200

6,420

6,600

5,640

6,800

6,600

6,420

5,450

5,420

5,710

5,090

5,150

4,500

3,520

4,180

*5,820 

5,260

4,920

3,670

3,420

5,020

3,540

-

220,850

7,362

-300

May

2,150 

3,100

2,100

1,870

2,500

2,030

1,880

1,850

1,700

1,650

1,740

3,060

2,540

2,550

1,770

1,010

1,690

1,680

1,440

1,160

1,390

1,260

1,250

4,520 

2,360

1,980

2,360

2,440

2,710

5,120

2,440

66,180

2,155

+58

June

1,690 

1,170

1,600

1,270

2,470

2,060

595

l.TSSo"

1,290

1,020

888

748

765

2,150

1,980

1,570

1,720

1,280

1,070

1,200

1,120

895

954

695 

1,040

1,100

1,330

890

920

1,250

-

37,800

1,260

+75

July

1,230 

1,060

1,060

940

888

812

574

EH

772

781

676

695

1,250

1,670

1,180

964

767

809

1,660

2,290

5.700

2,220

2,500

1,710 

*1,120

1,120

1,060

940

746

987

1,160

37,755

1,218

+17

Aug.

1,140 

1,060

851

go

374

847

826

772

728

312

440

94

1,280

1,140

812

704

2,440

1,880

901

1,190

1,050

2,050

1,360

973 

800

631

982

898

906

811

510

28,822

930

+25

Sept.

235

878

1,870

2.180

961

1,600

1,960

552

106

810

1,470

148

986

1,030

1,070

85

797

1,170

1,070

832

1,040

3220

380

3450 

a600

3580

31,100

3500

375

35UO~

-

24,555

818

+11

Adjusted for diversion and change in reservoir contents

Mean 

Cfsm 

In.

475 

0.507 

0.35

2,385 

1.54 

1.72

Calendar year 1950 : 

Water year 1950-51 :

5,870 

2.50 

2.88

4,240 

2.74 

5.16

6,483 

4.20 

4.37

5,273 

3.41 

3.95

7,062 

4.77 

5.32

2,173 

1.41 

1.63

Observed

Max 10,700 Min 65 Mean 2,357 

Max 17,100 Min 70 Mean 2,979

1,355

0.863 

0.96

1,235 

0.799 

0.92

955 

0.618 

0.71

829 

0.557 

0.60

Adjusted

Mean 2,369 Cfsm 1.53 In. 20.78 

Mean 2,999 Cfsm 1.93 In. 26.55

Peak discharge (base. 11,000 efs).--Nov. 26 (8:50 a.m.) 13,400 cfs (10.90 ft); Feb. 8 (2:30 a.m.) 

16,600 cfs tll796 ft); Feb. 22 111:30 a.m.) 12,000 cfs (10.27 ft); Mar. 51 (10 a.m.) 20,200 cfs 

(13.12 ft); Apr. 3 (3 p.m.) 21,000 cfs (15.26 ft).

* Discharge measurement made on this day.

t Change In contents in Candlewood Lake, Lake Zoar, and Shepaug Reservoir, and small diversion 

from basin at Shepaug Reservoir, equivalent In cubic feet per second; furnished by Connecticut Light 

and Power Co. and city of waterbury.

a No gage-height record; discharge computed on basis of powerplant records.
HOUSATONIC RIVER BASIN

Naugatuck River near Thomaston, Conn.

Location (revised) . Lat. 41°42'15", long. 73°03'53", on right bank near downstream side 

or Twomne ariage, 250 ft downstream from New York, New Haven & Hartford Railroad 

bridge, 0.4 mile upstream from Leadmine Brook, 2 miles north of Thomaston, Litchfield 

County, and at mile 31.

Drainage area. 71.9 sq mi.

Records available. October 1930 to September 1951.

Sage.--Water-stage recorder. Datum of gage is 389.44 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--21 years, 136 cfs.

Extremes. Maximum discharge during year, 5,000 cfs Mar. 31 (gage height, 8.04 ft); minimum, 19 cfs Aug. 6, 30, 31, Sept. 21 (gage height, 1.03 ft); minimum daily, 21 cfs 

Aug. 31.

1930-51: Maximum discharge, 10,200 cfs Dec. 31, 1948 (gage height, 12.03 ft); minimum, about 7 cfs (result of freezup) Mar. 12, 1940; minimum daily, 13 cfs Oct. 24, 

1931; minimum gage height, 0.91 ft (result of freezeup) Dec. 2, 1946.

Remarks.--Records excellent except those for periods of ice effect or no gage-height 

record, which are good. Slight diurnal fluctuation.

Revisions (water years).--W 741: 1931-32. W 781: Drainage area. W 821: 1936(M). 

w 1111: i3i)a(n).

Rating tables, water year 1950-51, except periods of ice effect (gage 

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

1.0 

1.3

1.6 

2.0

Oct. 1 to Feb. 7, 

Mar. 31 to Sept. 30

17 2.5

41 3.0

4.0

Feb. 8 to Mar. 30

155

310

54O

l.lbO

2,520

2.0 

2.5 

3.0

3.8

142

290

510

1,010

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 sm

In.

Oct.

22

2T

23

27

27

2b

2b

23

24

39

37

st

32

26

27

30

30

29

28

27

23

28

30

30

29 

29

28

25

2b

29

896

28.9

0.402

0.4b

Nov.

28

23

*29

47

233

b5

44

39

37

35

31

27

28

30

30

31

34

31

27

30

194

70

56

57

eao

 1,960 43B"

310

289

222

-

5,357

179

2.49

2.78

Dec.

178

155

153

367

*bbO

296

222

527

564

306

330

286

216

178

162

170

158

141

128

DllO

b!05

bllO

b!05

bllO

b!25

blOO 

b95

b90

b310~

36O

220

7,037

227

3.1b

3.64

Jan.

170

150

IbO

520

370

210

2OO

180

150

135

125

125

120

110

57U

440

*240

210

219

275

322

234

170

678

495

292 

219

195

195

168

144

7,791

251

3.49

4.02

Feb.

217

455

264

210

172

155

970

73U

348

239

217

*211

276

361

255

196

219

825

409

301

429

962

432

283

245

236 

242

233

_

_

-

10,092

360

5.01

5.22

Mar.

208

193

174

182

199

202

262

317

236

180

159

164

ISO

409

443

269

242

217

199

781

4faO

324

255

350

357

252

*199

188

226

903

2,520

11,250

363

5.05

5.82

Apr.

670

460

1,460

816

485

378

318

278

250

228

222

222

351

278

219

192

207

180

162

153

132

124 4F7-

296

207

*186 

158

141

153

137

-

9,490

316

4.39

4.90

May

113

109

98

93

88

82

79

74

70

71

lie

248

148

1O4

88

76

fa9

63

59

6?

64

59

59

313 2"l6

111 

90

97

90

95

73

3,179

103

1.43

1.65

June

59

52

50

122

148

70

57

50

44

42

41

41

40 143"

128

73

58

92

84

56

50

49

49

46

41

38 

44

*42

50

51

1,91O

63.7

0.886

0.99

July

51

48

43

37

89

50

39

34

32

30

29

3T

44

35

30

34

36

35

62

*58

37

33

35

34

32

31 

31

33

32

29

31

1,211

39.1

0.544

0.63

Aug.

33

31

30

29

23

23

26

31

31

31

43

31

59

32

36

50

ea

3?

30

28

56

46

*35

32

30

31 

25

23

23

22

21

1,048

33.8

0.470

0.54

Sept.

42

41

39

43

34

30

30

29

25

27

30

29

30

29

35

29

26

29

28

29

2~6 23

26

27

29

30 

29

29

26

25

904

30.1

0.419

0.47

Calendar year 1950: Max 1,960 Min 22 Mean 135 Cfsm 1.88 In- 25.56

Water year 195O-51: Max 2,520 Min 21 Mean 155 Cfsm 2.29 In. 31.12

Peak discharge (oase, 1.50O cfs). --Nov. 25 (time unknown) 5,000 cfs (8.0 ft); Feb. 7 (time unknown)

4,010 cfs (7.1 ft); Mar. 31 Z a.m.) 5,000 cfs (8.04 ft); ftpr. 3 (2 p.m.) 2,250 cfs (5.32 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Dec. 30 to Jan. 17; discharge estimated on basis of recorded range in

stage, weather records, and records for Naugatuek River near Naugatuck.
HOUSATOMIC RIVER BASIN 

Leadmine Brook near Thomaston, Conn.

277

Location.--Lat 41°42'06", long. 73°03'28", on left bank 10 ft downstream from highway 

bridge, 0.4 mile upstream from mouth, and 2£ miles northeast of Thomaston, Litchfield 

County.

Drainage area. 24.0 sq mi.

Records available. September 1930 to September 1951.

Gage. Water-stage recorder. Datum of gage is 401.23 ft above mean sea level, datum of

 T929 (levels by Corps of Engineers).

Average discharge. 21 years, 45.8 cfs.

Extremes. Maximum discharge during year, 1,440 cfs Nov. 25 or 26 Feb. 7, Mar. 30 or 31;

 maximum gage height, 7.85 ft Nov. 25 or 26; minimum discharge, 1.5 cfs Sept. 30 (gage 

height, 2.14 ft).

1930-51: Maximum discharge, 3,050 cfs Sept. 21, 1938 (gage height, 11.14 ft), 

from rating curve extended above 800 cfs by logarithmic plotting; maximum gage height, 

11.2 ft Sept. 17, 1934, from floodmarks; minimum discharge, 0.08 cfs Aug. 27-29, 1941; 

minimum gage height, 1.60 ft at times during period Sept. 12-15, 1931, and on July 30, 

Aug. 12, 1933.

Remarks.--Records good except those for periods of ice effect and of no gage-height rec-

 OPQ, which are fair. Occasional low-water regulation.

Revisions (water years). W 781: 1934(M), drainage area.

Rating tables, water year 1950-51, except periods of Ice effect (gage height, 

In feet, and discharge, In cubic feet pej- second)

2.1

2.2

2.3

2.4

2.5

l.Z 

Z.O 

3.0 

4.Z

5.6

2.6 

2.8 

3.Z 

3.6 

4.0

Mar. 30

7.8 4.5

5.0

5.5

220

350

520

Mar. 31 to Sept. 3O

2.8 15

3.2 39

3.6 81

4.0 141

4.5 240

Note. --Same as preceding table below 2.8

ft.

Dlscharge, In cubic feet per second, 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

18

19

20

Zl

ZZ

Z3

Z4

25

Z6

Z7

Z8

Z9

30

31

Total

Mean

Cfsm

In.

Oct.

3.7

3.6

3.5

3.5

3.4

3.4

3.4

3T5

3.7

8.0

11

14

17

T2

9.4

8.6

7.4

7.1

7.3

6.5

6.0

5.6

6.5

7.6

7.4

7.1

6.5

6.4

6.7

6.3

5.8

211.9

6.84

O.Z85

0.33

Nov.

5.6

B75

*5.6

15

1Z1

45

26

19

16

14

1Z

11

10

9.4

8.8

9

10

9

8.5

15

65

Z5

18

19

175

510

T25

88

75

65

-

1,540.5

51.3

Z.14

Z.39

Dee.

60

55

50

1ZO

*180

83

65

190

T52

96

106

83

66

56

51

55

52

49

b46

b43

b41

b39

b38

45

43

b33

b36

b33

b!3T3

163

97

2,371

76.5

3.19

3.68

Jan.

77

71

62

ZOZ

106

90

79

70

b63

b57

b5Z

b50

46

46

Z09

150

*91

71

75

88

97

65

63

260

T5T

92

71

b62

61

52

b45

Z,77Z

89.4

3.73

4.30

Feb.

b55

blTO

87

67

b59

54

'555 353

130

85

86

*75

89

117

83

7Z

75

333

147

107

138

357

146

96

86

81

81

74

-

-

-

3,591

1Z8

5.33

5.55

Mar.

65

63

5S

59

67

75

146

111

8Z

64

55

BT

59

Z06

161

10O

82

71

*63

Z80

139

103

90

113

97

74

63

60

74

260

560

3,557

115

4.79

5.5Z

Apr.

190

135

4OO

2Z5

145

110

100

90

8Z

78

74

7Z

1ZO

80

70

65

68

60

56

5Z

50

48

170

110

75

*64

50

44

50

43

-

Z.976

99.2

4.13

4.61

May

39

37

35

33

3Z

30

29

27

26

25

60

110

55

40

30

25

23

21

20

22

21

20

20

200 -55

36

32

37

31

36

26

1,243

40.1

1.67

1.92

June

20

16

16

22

64

32

22

16

14

12

11

9.7

45~8.8

57

31

21

61

81

33

23

21

18

18

13

9.4

10

*11

12

19

-

750.9

25.0

1.04

1.16

July

16

15

10

7.8

22

14

9.4

6.9

5.8

4.9

4.5

4.6

6.3

5.6

4.2

3.6

3.4

3.0

3.8

*11

5.6

4.1

4.0

3.6

3.0

2.6

2.4 a-T*

3.5

3.4

2.7

199.1

6.42

0.268

0.31

Aug.

2.8

2.7

2.4

2.3

2.3

2.0

1.8

T7S

1.9

2.1

3.0

3.5

4.6

3.0

2.7

3.7

16

6.5

4.2

3.9

17

T5

5.8

4.2

3.6

5.2

4.0

3,0

2.5

2.3

2.0

137.8

4.45

0.185

0.21

Sept.

4.0

9.7

775

*5.6

4.2

3.5

3.5

3.4

3.0

2.5

2.2

2.7

1-.9

1.8

2.5

2.6

2.4

2.0

1.9

1.8

1.7

1.6 T7?

1.7

1.7

2.3

1.7

1.8

1.6

5.0

-

89.8

2.99

0.125

0.14

Calendar year 1950 : Max 510 MJ.n 1.7 Mean 46.5 Cfsm 1.94 In. 26.31

Water year 1950-51 : Max 56O Min 1.6 Mean 53.3 Cfsm Z.22 In. 3O.1Z

Peak discharge (base, 650 efs). Nov. 25 or 26 (time unknown) 1,440 cfs (7.85 ft); Feb. 7 (7 p.m.) 

1.44O cfs ^.78 ft); Mar. 30 or 31 (time unknown) 1,440 cfs (7.8 ft); Apr. 3 (time unknown) 66O cfs 

(5.85 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.--No gage-height record Nov. 16 to Dee. 5, Mar. 31 to Apr. 25, Apr. 28 to May 27; discharge 

computed on basis of recorded range In stage, 1 discharge measurement, weather records, engineer's 

notes and records for Naugatuck River near Thomaston and Burlington Brook near Burlington.
278 HOUSATONIC RIVER BASIN

Naugatuck River near Naugatuck, Conn.

Location. Lat 41°28'15", long. 73°03'10", on left bank 0.2 mile upstream from Beacon Hill 

Brook, 1.3 mile downstream from Naugatuck, New Haven County, and at mile 12.4.

Drainage area.--246 sq mi.

Records available.--June 1918 to September 1924, September 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 155.17 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--29 years (1918-24, 1928-51), 448 cfs (adjusted).

Extremes. Maximum discharge during year, 11,300 cfs (gage height, 8.10 ft); minimum, 66 

cfs Sept. 23 (gage height, 0.29 ft); minimum daily, 80 cfs Sept. 30.

1918-24, 1928-51: Maximum discharge, 28,500 cfs Dec. 31, 1948 (gage height, 12.40 

ft), from rating curve extended above 9,000 cfs on basis of slope-area determinations 

at gage heights 7.56 and 12.4 ft; minimum, 24 cfs Oct. 21, 1935; minimum daily, 40 cfs 

Oct. 5,^12, 1930*, Sept. 7, 1936; minimum gage height, 0.14 ft July 17, 1939.

Flood of November 1927 reached a stage of 14 ft (discharge, about 26,000 cfs).

Remarks. Records good. Flotf regulated by plants above station during low stages and by 

Morris, Wigwam, and Pitch Reservoirs having a combined capacity of 550,000,000 cu ft 

(see p.279). Flow increased by diversion from Shepaug Reservoir into Naugatuck River 

basin.

Revisions (water years).--W 1171: 1918-24, 1928-49.

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

In cubic feet per second)

Oct. 1 to 2 p.m. Oct. 12, 

July 13 to Sept. 30

0.3 68

.5 104

.7 149

1.1 270

2 p.m. Oct. 12 to July 12

1.1 

1.5 

2.0

195 

297 

470 

78O

3.0 1,640

4.0 2,800

6.0 6,100

6.4 6,920

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

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

(t)

Oct.

85

100

108

104

102

100

93

80

93

154

149

205

195

152

110

119

131

128

128

126

112

91

126

133 

133

131

126

114

97

110

121

3,756

121

-18.2

Nov.

*121

124

119

£01

661

352

230

195

174

165

141

116

131

138

141

141

143

128

110

154

584

366

227

205 

751

4,530

1,260

836

808

616

-

13,668

456

+5.8

Dec.

505

435

411

710

* 1.8.90

898

640

1,390

1,740

970

994

898

696

580

526

592

544

500

455

388

a380

a 400

a390

406 

460

367

a360

a320

903

1,400

930

22,078

712 -0.3

Jan.

668

568

592

1,780

1,510

930

822

738

592

562

532

532

485

455

1,880

1,740

970

794

815

930

962

*780

562

2,210 

1,980

1,130

836

703

745

654

485

28,942

934

0

Feb.

723

1,870

994

780

668

592

2,570

5,840

1,490

930

815

856

994

1,260

962

*773

806

3,190

1,640

1,220

1,340

3,780

1,850

1,220 

1,030

986

954

890

-

-

-

59,003

1,393

+ 1.6

Mar.

822

801

752

794

874

914

1,050

1,220

946

724

640

647

654

1,460

1,810

1,090

914

794

731

2,190

1,620

1,220

986

1,150 

1,170

898

*759

705

808

2,090

6 L740

57,951

1,224

+0.5

Apr.

2,500

1,640

5.750

2,660

1,690

1,550

1,150

1,020

946

866

850

829

1,170

954

766

696

724

640

598

568

495

455

* 1,260

1,020 

710

647

568

485

505

480

-

51,792

1,060

-2.4

May

420

388

363

347

524

305

312

505

290

285

567

822

526

598

545

508

286

261

244

247

272

265

254

1,210 

924

480

388

416

371

495

375

12,589

406 -4.3

June

305

258

234

375

829

430

516

265

234

211

211

201

201

a 400

a500

a560

a280

a300

a350

a300

a260

a240

a250

a220 

*a200

177

198

189

237

£21

-

8,730

291

-11.4

July

201

201

174

138

256

201

143

124

119

119

119

188

162

130

9J5

112

118

134

132

165

132

102

174

137 

*1£7

125

121

126

127

125

127

4,452

144

-20.0

Aug.

219

142

127

106

87

106

118

121

121

204

164

106

138

139

156

157

265

167

117

125

138

235

152

127 

132

118

127

125

121

119

108

4,385

141

-17.3

Sept.

141

165

144

*144

139

130

121

104

87

106

114

110

114

108

175

108

112

110

108

106

98

85

80

94 

116

106

110

104

95

80

-

3,412

114

-18.6

Adjusted for diversion and change In contents

Mean

Cfsm

In.

103

0.419

0.48

462

1.88

2.10

712

2.89

5.55

934 1,

5.80 5

4.58 5

395 1,225

.67 4.98

.90 5.74

1,058

4.50

4.80

402

1.63

1.88

Observed

Caler

Watei

Pe

9,86

Mar.

idar year 1950 :

 year 1950-51 :

Max 4,330 Min

Max 6,740 Min

ik discharge (base, 4,000 cfs). Nov

3 cfs (7.61 ft); Feb. 18 (5:30 a.m.)

51 (4:30 a.m.) 11,500 cfs (8.10 ft)

80 Mean 453

80 Mear

. 26 (5:50 a

4,620 cfs (

577

280

1.14

1.27

124

0.504

0.58

124

0.504

0.58

95.4

0.388

0.43

Adjusted

Mean

Mean

449

570

m.) 7,590 cfs (6.74 ft)

5.17 ft); Feb. 2

; Apr. 5 (3 p.m.) 5,710 cfs

2 (5 a.m

Cfsm 1.83 In.

Cfsm 2

Feb. 7

. ) 4,620

(5.77 ft).

32 In.

24.76

31.47

(10:30 p.m. )

cfs (5. 16 ft);

scarge measurement made on this day.

t Diversion from Shepaug Reservoir and change in contents in Wigwam, Morris, and Pitch Reservoirs, 

equivalent-in cubic feet per second; furnished by city of Water-bury.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for Naugatuck River near Thomaston, Conn.
HOU8ATONIC RIVER BASIN 

Reservoirs in Housatonic River Basin

279

Lake Zoar on Housatonic River at Stevenson, Conn., completed in 1919 for storage of water 

for power, has usable capacity of 331,000,000 cu ft. Records furnished by The Connecticut Light & Power Co.

Candlewood Lake (Rocky River Reservoir) on Rocky River, 2 miles west of New Milford, 

Conn., completed in 1928 for storage of water for power, has usable capacity of 

6,210,000,000 cu ft. Records furnished by The Connecticut Light & Power Co.

Shepaug Reservoir on Shepaug River, 1 mile north of Woodville, Conn., completed in 1933 

for storage of water for municipal supply, has usable capacity of 77,000,000 cu ft. 

Records furnished by Bureau of Engineering, city of Waterbury, Conn.

Pitch, Morris, and Wigwam Reservoirs on Branch of Naugatuck River, 3 miles west of Thomaston, Conn., are operated as a unit with Shepaug Reservoir for storage of water for municipal supply. The downstream order and capacity of each is as follows: Pitch Reservoir, 

completed in 1943, 190,000,000 cu ft; Morris Reservoir, completed in 1913, 265,000,000 

cu ft; Wigwam Reservoir, completed in 1902, 97,000,000 cu ft. Records furnished by 

Bureau of Engineering, city of Waterbury, Conn.

Monthly change in reservoir contents, equivalent in cubic feet per second, water year 

October 1950 to September 1951

Month

Calendar year 195O.....

September ................

Water year 1950-51 .....

Lake Zoar

-3.4

-2.2

+55.9

-10.1

+17.5

+ .3

Candlewood Lake 

(Rocky River 

Reservoir)

-114

+5

+27

-86

-9

+ 14

Shepaug 

Reservoir

-8.1

+ .5

2

+ .4

+ 1.7

-2.2

-1.2

-6.6

-9.6

-.7

Pitch, Morris 

and Wigwam 

Reservoirs

-4.2

+12.9

-.3

+4.0

0

+1.6

+ .5

-2.4

-.8

-4.5

-4.2

-6.1

-.6
SAUGATUCK RIVER BASIN

Saugatuck River near Westport, Conn.

Location. Lat 41°10'15", long. 73°22'00", on left bank on old Ford Road (Clinton Avenue), 

400 ft downstream from West Branch, 600 ft downstream from Aspetuck River and dam of 

Dorr Co., 2 miles north of Westport, Pairfield County, and 5-i miles upstream from mouth.

Drainage area. 77.5 sq ml.

Records available. September 1932 to September 1951.

Page.--Wa ter-s tage recorder. Datum of gage is 18.16 ft above mean sea level, datum of

"1929.

Average discharge. 19 years, 139 cfs (adjusted for storage in, and diversion from, Saugatuck Reservoir since October 1941).

Extremes. Maximum discharge during year, 3,220 cfs Mar. 31 (gage height, 8.90 ft); minimum, 5.4 cfs Nov. 15 (gage height, 2.20 ft); minimum daily, 10 cfs Oct. 5, Sept. 25.

1932-51: Maximum discharge, 5,310 cfs Mar. 12, 1936 (gage height, 11.30 ft), from 

rating curve extended above 1,700 cfs, verified by computation of flow over- dam for 

flood of September 1938 (gage height, 10.28 ft); minimum, 0.3 cfs Aug. 13, 1935; minimum gage height, 1.97 ft Oct. 18, 1950; minimum daily discharge, 1.0 cfs Aug. 11, 1939.

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

Flow regulated by storage and diversion at Saugatuck Reservoir (total capacity, 

11,900,000,000 gal) and Aspetuck Reservoir. At Aspetuck Reservoir, Bridgeport Hydraulic Co. diverts an indeterminable amount of water for domestic supply from about 

17 sq mi of Saugatuck River basin through Hemlocks Reservoir in Mill River basin. Infrequent regulation by Dorr Co.'s dam.

Revisions. W 781: Drainage area.

Rating table, water year 1950-51, except periods of ice effect or 

backwater from leaves or rooks (gage height, in feet, and 

discharge, in cubic feet per second)

2.2

2.3 

2.5 

2.9 

3.4

75

171

4.0 

5.0 

6.0 

7.9

335

700

1,180

2,4ZO

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

Itotal

Mean

(t)

Oct.

1Z

12

11

11

Ifi

11

11

12

13

18

21

23

25

21

17

16

15

14

13

12

12

12

14

15

14

14

17

17

14

14

14

455

14.7

-24.5

Nov.

*14

16

16

21

57

37

25

21

20

17

14

16

16

17

14

16

16

16

16

19

77

42

30

27

67

320

223

112

88

71

-

1,461

48.7

+40.7

Dec.

*56

48

il

69

160

105

78

140

190

144

133

112

88

72

69

203

183

127

88

72

61

58

58

65

65

53

52

50

176

276

299

3,397

110

+86.1

Jan.

262

216

188

224

243

216

224

226

155

133

123

119

110

120

392

350

200

170

180

200

190

*160

129

544

725

448

317

273

279

248

183

7,547

243

+0.8

Feb.

248

372

299

254

211

173

338

785

460

310

279

270

276

311

270

216

227

600

445

366

*403

808

560

405

305

299

282

254

-

-

-

10,026

358

-0.3

Mar.

237

243

240

302

335

305

279

256

226

208

173

144

138

290

431

314

248

216

193

834

650

*455

372

360

338

285

234

216

240

610

2.380

11,752

379

+ 7.6

Apr.

1.060

720

964

875

620

501

428

382

341

299

273

243

299

270

224

200

195

171

153

155

119

ili

291

*273

193

171

135

118

116

127

-

10,030

334 -9.3

May

101

91

78

71

67

62

61

60

49

48

68

144

110

81

67

60

48

43

36

40

43

44

48

297

245

140

119

140

116

160

133

2,870

92.6

+0.4

June

88

74

61

54

71

58

*52

37

34

32

31

24

24

81

88

58

42

33

27

24

23

29

20

18

11

18

18

19

29

20

-

1,204

40.1

+10.7

July

24

20

18

18

24

23

19

18

18

17

16

16

15

15

ii

14

15

14

*17

19

17

16

20

17

16

15

14

20

26

20

18

553

17.8

-1-5.3

Aug.

17

15

14

14

13

12

13

12.

14

14

14

14

16

18

16

24

29

26

T.9

15

14

*14

14

12

14

16

14

14

12

12

12

477

15.4

+0.9

Sept.

12

30

28

21

18

17

16

14

13

12

12

12

11

11

14

22

16

14

13

12

11

11

11

11

12

13

12

*12

12

12

-

433

14.4

* -7.8

Adjusted for diversion and change in reservoir contents

Mean 

Cfsm 

In.

-9.8 

-0.126 

-0.15

89.4 

1.15 

1.28

Calendar year 1950 : 

Water year 1950-51 :

196 

2.53 

2.92

244 

3.15 

3.63

358 

4.62 

4.81

387 

4.99 

5.75

325

4.19 

4.68

93.0 

1.20 

1.38

Observed

Max 395 Mln 10 Mean 66.6 

Max 2,380 Mln 10 Mean 138

50.8 

0.655 

0.73

23.1 

0.298 

0.34

16.3 

0.210 

0.24

6.6 

0.085 

0.09

Adjusted

Mean 93.1 Cfsm 1.20 In. 16.28 

Mean 147 Cfsm 1.90 In. 25.70

* Discharge measurement made on this day.

t Change in contents and diversion for domestic water supply from Saugatuck Reservoir, equivalent 

in cubic feet per second.

Note. No gage-height record Jan. 17-21, Sept. 2-27; discharge estimated on basis of recorded rang 

in stage, weather records, and records for Pomperaug River at Southbury and Still River near Lanesville.
MISCELLMEOUS DISCHARGE MEASUREMENTS 281

Measurements of streamflow in the north Atlantic slope basins made at points other than 

gaging stations are given in the following table:

Miscellaneous discharge measurements In north Atlantic slope basins during water year 

October 1950 to September 1951

Kennebec River basin, Maine

Date

May 2

Stream

Black Brook. .....

Tributary 

diverting

Dead River.

to Dr Locality

At Long Falls in T. 3, R. 4..........

DischE 

(cf

116

r

Ipswich River Dasin, Mas

Ipswich River.... Atlantic Ocean...... At bridge on U. S. Highway 1, 0.8

mile south 3f Topsfield.

Connecticut River basin, Conn.

June

Mar. 

Apr.

12

27

10

Birge Pond Brook.

Coppermine Brook.

Pequabuck River .....

Pequabuck River ..... 

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

At

At

Bristol, north 

Center Street.

Cen er Street.

bridge on U. S. 

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

of bridge

Highways

on Armory

6 and 202.

2.96 

2.01

5.95

35.3 

49.8

Menunketesuck River basin, Conn.

May 8

23

Killingworth 

Reservoir 

outlet.

Menunketesuck 

River .

Menunketesuck River.

Long Island Sound...

Just below Killingworth Reservoir 

near Killingworth.

Above mouth of Killingworth Reservoir 

outlet.

12.1

1.55

288890 O - 54 - 19

INDEX

Page 

Aberjona River at Winchester, Mass.... 123

Accuracy of field data and computed

results......................... 7-8

Acre-foot, definition of..............

Adamsville Brook at Adamsville, R. I..

Agencies other than Geological Survey,

records collected by............

Allagash River near Allagash, Maine... 

Ambajejus Lake, Maine, contents of....

Amherst, Maine, West Branch Union River 

at..............................

rtmmonoosuc River at Bethlehem Junction, 

N. H............................

near Path, N. H.....................

Androscoggin River at Errol, N. H.....

at Rumford, Maine...................

near Auburn, Maine..................

near Gorham, N. H...................

Androscoggin River basin, Maine,

gaging-station records in....... 62-72

reservoirs in....................... 71-72

Antrim, N. H., North Branch Concoocook

River near...................... 97

Aroostock River at Washburn, Maine.... 19

Ashland, N. H., Squam River at........ 89

Ashuelot River at Hinsdale, N. H...... 205

below Surry Mountain Dam, near Keene,

N. H............................ 202

near Gilsum, N. H................... 201

South Branch, at Webb, near Marlboro,

N. H............................ 204

Assabet River at Maynard, Mass........ 114

Athol, Mass., East Branch Tally River

near............................ '-10

Auburn, Maine, Androscoggin River near 70 

Little Androscoggin River near...... 69

Auburn, N. H., Clark Brook at......... 107

Austin Stream at Bingham, Maine....... 54

Ayers Brook at Randolph, Vt

128

12 lb" 

47

178

179 

ti3 

55 

70 

64

Aziscohos Lake, Maine, contents of.... 71,72

Baileyville, Maine, St. Croix River

near............................

Baker River at Wentworth, N. H........

near Rumney, N. H...................

Barkhamsted Reservoir, Conn., contents

of.............................255 ;

Barre, Mass., Ware River near.........

Bath, N. H., Amraonoosuc River near....

Beards Brook near Hillsboro, N. H.....

Bethel, Vt., White River near.........

Bethlehem Junction, N. H., Ammonoosuc

River at........................

Bingham, Maine, Austin Stream at......

Kennebec River at...................

Birch Hill Reservoir, Mass., contents

of.............................255

Birge Pond Brook, Conn., discharge

measurements of.................

Black Brook, Maine, discharge measurement of.........................

Black River at North Springfield,

Vt..............................

Blackberry River at Canaan, Conn.....264-

Blackstone River at Northbridge, Mass. 

at Woonsocket, R. I. ................

Blackwater Reservoir, N. H., contents

of..............................

Blackwater River near Webster, H. H...

178

54

55

256

281

281

193 

 265 

133 

136

119

101

Page 

Borden Brook Reservoir, Mass.,

contents of................... 255,256

Bradford, Vt., South Branch Waits

River near.....................

Branch River at Forestdale, R. I.....

Brassua Lake, Maine, contents of.....

Bristol, N. H., Smith River near.....

Broad Brook, Conn., Scantic River at 236-237 

Brockway Mills, Vt., Williams River

at............................. 194

Buffumville, Mass., Little River at.. 158 

Burlington Brook near Burlington,

Conn........................... 241

Byfield, Mass., Parker River at...... 120

Canaan, Conn., Blackberry River at..264-265 

Candlewood Lake, Conn., contents of.. 279 

Caribou Lake, Maine, contents of..... 47 

Carrabasset River near North Anson,

Maine..........................

Centerdale, R. I.,, Woonasquatucket

River at.......................

Cfs-day, definition of...............

Chamberlain Lake, Maine, contents of 

Charlemont, Mass., Deerfield River

at.............................

Charles River (tributary to Atlantic

Ocean) at Charles River

Village, Mass.................. 124

at Waltham, Mass................... 126

Charles River basin, Mass., gagingstation records in............124-126

Charles River Village, Mass., Charles

River at....................... 124

Cherryfield, Maine, Narraguagus River

at............................. 26

Chesuncook Lake, Maine, contents of.. 47 

Chicopee River at Indian Orchard,

Mass........................... 226

Clark Brook at Auburn, N. H.......... 107

Clinton, Conn., Menunketesuck River

near........................... 257

Clinton, Mass., South Branch Nashua

River at....................... Ill

Cobble Mountain Reservoir, Mass.,

contents of.................. .255,256

Cobbosseecontee Stream at Gardiner,

Maine.......................... 59

Cochituate, Mass., Lake Cochituate

Outlet at. ..................... 116

Cold River at Drewsville, N. H....... 197

Coldbrook, Mass., Ware River at...... 220

Coltsville, Mass., East Branch

Housatonic River at............ 262

Columbia, Conn., Hop River near...... 149

Comerford Station Pond, Vt., contents

of............................255,256

Computations, accuracy of results of. 7-8 

Concord River below River Meadow

Brook, at Lowell, Mass......... 117

Connecticut River at First Connectout Lake, near Pittsburg, N. H. 170 

at Montague City, Mass............. 217

at North Stratford, N. H........... 171

at North Walpole, N. H............. 196

at Thompsonville, Conn............. 235

at Turners Falls, Mass............. 213

at Vernon, Vt...................... 2UO

at Wells River, Vt................. 180
INDEX

Connecticut River at White River

Junction, Vt.................... 188

near Dalton, N. H................... 173

Connecticut River basin, Conn.-Mass.- 

N. H.-Vt., gaging-station 

records in.....................170-256

reservoirs in....................... 255

Contents, definition of............... 3

Contoocook River at Penacook, N. H.... 102

at Peterboro, N. H.................. 95

near Henniker, II. H. ................ 99

North Branch, near Antrim, N. H..... 97

Control, definition of................ 3

Conway, N. H., Saco River near........ 75

Cooperation, record of................ 1-2

Coppermlne Brook, Conn., discharge

measurements of................. 281

Cornish, Maine, Ossipee River at...... 77

Saco River at....................... 78

Cranston, R. I., Pawtuxet River at.... 139

Cubic feet per second per square mile,

definition of................... 2

Cubic foot per second, definition of.. 2

Dalton, N. H., Connecticut River near. 173 

Data, accuracy of..................... 7-8

explanation of...................... 3-7

Davisvllle, N. H., Warner River at.... 100

Dead River at The Forks, Maine........ 53

near Dead River, Maine.............. 52

Dead River Pond, Maine, contents of... GO,61 

Dedham, Mass., Mother Brook at........ 125

Deerfield River at Charlemont, Mass... 314 

near West DeerfieId, Mass........... 216

Diamond River near Wentworth Location,

N. H............................ 62

Dickey, Maine, St. John River at...... 15

Dover-Foxcroft, Maine, Piscataquis

River near.....................

Drainage area, definition of.........

Drewsville, H. H., Cold River at.....

Durham, N. H., Oyster River near.....

East Branch Reservoir, Conn., contents

of............................,255,556

East Douglas, Mass., Mumford River at. 134 

East Greenwich, R. I., Potowomut River

near............................ 140

East Hampton, Conn., Salmon River near 252 

East Hartford, Conn., Hockanum River

near. .......................... .250-251

East Haven, Vt., Passumpsic River near 174 

East Machias River near East Machias,

Maine........................... 25

East Outlet, Maine, Moosehead Lake at. 49 

East Pepperell, Mass., Nashua River at 113 

Effirigham Falls, N. H., Ossipee River

at. ............................. 76

Eightmile River, East Branch, near

North Lyme, Conn................ 253

West Branch, at North Plain, Conn... 254 

Elbow Lake, Maine, contents of........ 47

Errol, N. H., Androscoggin River at... _63 

Erving, Mass., Millers River at....... C12

Falls Village, Conn., Housatonic

River at........................ 266

Farmington River at Rainbow, Conn.....

West Branch, at Riverton, Conn......

near New Boston, Mass.............

First Connecticut Lake, N. H., contents of.......................255,256

First Roach Pond, Maine, contents of.. 60 

Fish River near Fort Kent, Maine...... 18

Five Mile River at Killingly, Conn.... 166

Flagstaff Lake, Maine, contents of.... 60,61

Floods, special reports on............ 11

Forestdale, R. I., Branch River at.... 135

Forestville, Conn., Pequabuck River at 242 

Fort Kent, Maine, Fish River near..... 18

St. John River at................... 17

Framingham Center, Mass., Sudburv

River at..................'...... 115

Franklin Falls Reservoir, N. H., contents of........................ 119

Franklin Junction, N. H., Merrimack

River at........................ 94

French River at Webster, Mass......... 159

Gardiner, Maine, Cobbosseecontee

Stream at....................... 59

Gaylordsville, Conn., Housatonic River

River at........................ 269

Tenmlle River near................. 267-268

Gibbs Crossing, Mass., Ware River at.. 221 

Gllsum, N. H., Ashuelot River near.... 201

Goffstcrwn, N. H., Piscataquog River

near............................ 105

South Branch Piscataquog River near. 104 

Gorham, N. H., Androscoggin River near 64 

Goss Heights, Mass., Middle Branch

Westfield River at.............. 231

Granby, Conn., Salmon Brook near...... 243

Grand Lake, Maine, contents of........ 47

Grand Lake Stream at Grand Lake

Stream, Maine................... 22

Great Barrington, Mass., Housatonic

River near......................

Great Brook at Poquanock Bridge, Conn. 

Grindstone, Maine, East Branch Penobscot River at...................

Groveton, N. H., Upper Ammonoosuc

River near.

263

144

Gulf Island Pond, Maine, contents of.. 71,72

Hardwlck, Mass., East Branch Swift

River near.......................

Harriman Reservoir, Vt., contents of 255, 

Hartford, Conn., North Branch Paris

River at.......................247-

Park River at,

South Branch Park River at......... 245-

Henniker, N. H., Contoocook River near 

Hillsboro, N. H., Beards Brook near... 

Hinsdale, N. H., Ashuelot River at....

Hockanum River near East Hartford,

Conn...........................250-

Hop Brook near New Salem, Mass........

Hop River near Columbia, Conn.........

Hope Valley, R. I., Wood River at.....

Houltoti, Maine, Meduxnekeag River near 

Housatonic River at Falls Village,

Conn............................

at Gaylordsville, Conn..............

at Stevenson, Conn..................

East Branch, at Coltsville, Mass....

near Great Barrington, Mass.........

Housatonic River basin, Conn.-Mass.,

gaging-station records in...... 262-

reservoirs in.......................

Huntington, Mass., West Branch Westfield River at..................

Hydrologlc conditions.................

diagram of..........................

248

249

246

205

149

142

279

279

232

J-LJ

13

Indian Orchard, Mass., Chlcopee River

at.............................. 226

Ipswich River at South Middleton,

Mass............................ 121

discharge measurement of............ 281

near Ipswich, Mass.................. 122

Ipswich River basin, Mass., gagingstatlon records in.............121-122

Jamaica, Vt., West River at........... 198

Jewett City, Conn., yuinebaug River at 168

Keene, N. H., Ashuelot River near..... 202

Otter Brook near.................... 203

Kenduskeag Stream near Kenduskeag,

Maine........................... 4C

Kennebago Lake, Maine, contents of.... 71 

Kennebec River at Bingham, Maine...... 55

at Moosehead, Maine................. 50

at The Forks, Maine................. 51

Kennebec River basin, Maine, gagingstation records in.............. 49-61

reservoirs in....................... 60-61

Kettle Brook at Worcester, Mass....... 131

Killingly, Conn., Five Mile River at.. 

Killingwbrth Reservoir outlet, Conn., 

discharge measurements of.......

Knightville, Mass., Sykes Brook at....

Westfield River at.".................

Knightville Reservoir, Mass., contents

of............................. 255 ,256

Lake Auburn, Maine, contents of....... 71,72

Lake Cochituate Outlet at Cochituate,

Mass............................ 116

Lake Francis, N. H., contents of..... 255,256 

Lake Winnipesaukee at The Weirs, N. H. 91
INDEX 285

Lake Winnipesaukee Outlet at Lakeport,

N. H............................. 92

Lake Zoar, Conn., contents of.......... 279

Lakeport, N. H., Lake Winnipesaukee

Outlet at........................ 92

Lamprey River near Newmarket, N. H..... 83

Lanesville, Conn., Still River near.... 270

Leadmine Brook near Thomaston, Conn.... 277

Leominster, Mass., Morth Mashua River

near............................. 109

Lincoln, N. H., East Branch Pemigewasset River near............... 84

Little Androscoggin River near Auburn,

Maine............................ 69

near South Paris, Maine.............. 68

Little Ossipee River near South Limington, Maine.................... 79

Little River at Buffumville, Mass...... 158

Lowell, Maine, Passadumkeag River at... 44 

Lowell, Mass., Concord River at........ 117

Merrimack River at....... r. .......... 118

Ludlow Reservoir, Mass., contents of..255,256

MacDowell Reservoir, N. H., contents

of............................... 119

Machias River at Whitneyville, Maine... 24 

Machias River basin, Maine, gagingstation records in............... 24-25

Manchester,N. H., Merrimack River below 106 

Map of the United States............... 9

Marlboro, N. H., South Branch Ashuelot

River near....................... 204

Mascoma Lake, N. H., contents of....... 255

Mascoma River at Mascoma, N. H......... 190

at West Canaan, N. H................. 189

Mascoma River basin, N. H., lakes and

ponds in, contents of...........255,256

Massabesic Lake, N. H., contents of.... 119

Mattawamkeag, Maine, Mattawamkeag River

near............................. 30

Penobscot River near................. 29

Mattawamkeag River near Mattawamkeag,

Maine............................ 30

Maynard, Mass., Assabet River at....... 114

Medford, Maine, Piscataquis River at... 42 

Meduxnekeag River near Houlton, Maine.. 20 

Menunketesuck River, Conn., discharge

measurement of................... 281

near Clinton, Conn................... 257

Mercer, Maine, Sandy River near........ 57

Merrimack, N. H., Souhegan River at.... 108

Merrimack River at Franklin Junction,

N. H............................. 94

below Concord River, at Lowell, Mass. 118 

near Goffs Falls, below Manchester,

N. H............................. 106

Merrimack River basin, Mass.-N. H.,

gaging-station records in........84-119

reservoirs in........................ 119

Merrymeeting Lake, N. H., contents of.. 119 

Mill River (Hampden County) at Springfield, Mass...................... 227

Mill River (Hampshire County) at Northhampton, Mass....................4, 218

Millers River at Erving, Mass.......... 212

at South Royalston, Mass. ............ 209.

near Winchendon, Mass................ 207

Milo, Maine, Pleasant River near....... 41

Montague City, Mass., Connecticut River

at............................... 217

Moose Pond, Maine, contents of......... 47

Moose River at St. Johnsbury, Vt....... 176

at Victory, Vt....................... 175

Moosehead, Maine, Kennebec River at.... 50

Moosehead Lake at East Outlet, Maine... 49 

Mooselookmeguntic Lake, Maine, contents

of............................... 71

Moosup River at Moosup, Conn. .......... 167

Morris Reservoir, Conn., contents of... 279 

Moss Brook at Wendell Depot, Wasf...... 211

Mother Brook at Dedham, Mass........... 125

Mount Hope River near Warrenville, Conn. 151 

Mousam River near West Kennebunk, Maine 80 

Moxie Pond, Maine, contents of......... 60

Mumford River at East Douglas, Mass.... 134

Narraguagus River at Cherryfield, Maine 26

Nashua River at East Pepperell, Mass... 113

South Branch, at Clinton, Mass....... Ill

Natohaug River at Willimantic, Conn.... 152

Maugatuck River near Maugatuck, 278 

Conn..........................

near Thomaston, Conn.............. 276

Mepaug Reservoir, Conn.,contentsof 255,256 

Meponset River at Morwood, Mass..... 127

Mew Boston, Mass., Farmington River

near.......................... 238

Mew Salem, Mass., Hop Brook near.... 222

Newfane, Vt., West River at......... 199

Newfound Lake, N. H., contents of... 119 

Mewmarket, M. H., Lamprey River near 83 

Mezinscot River at Turner Center,

Maine......................... 67

Minemile Bridge, Maine, St. John

River at...................... 14

Morth Anson, Maine, Carrabassett

River near.................... 56

North Chichester, M. H., Suncook

River at...................... 103

Morth Grafton, Mass., Quinsigamond

River at. ..................... 132

North Hartland, Vt., Ottauquechee

River at...................... 191

North Lyme, Conn., East Branch

Eightmile River near.......... 253

North Nashua River near Leominster,

Mass.......................... 109

North Plain, Conn., West Branch

Eightmile River at............ 254

North River at Shattuckville,

Mass.......................... 215

North Springfield, Vt., Black River

at............................ 193

North Stratford, N. H., Connecticut

River at...................... 171

North Twin Lake, Maine, contents of. 47 

North Walpole, N. H., Connecticut

River at...................... 196

North Whitefield, Maine, Sheepscot

River at...................... 48

Northampton, Mass., Mill River at... 218 

Northbridge, Mass., Blackstone River

at............................ 133

Norton, Mass., Wading River near.... 130

Norwood, Mass., Neponset River at... 127 

Nubanusit Brook near Peterboro, N.H. 96

Ompompanoosuc River at Union Village,

Vt....... ..................... 184

Order, new downstream, of listing

of gaging stations............ 3

Ossipee River at Cornish, Maine..... 77

at Effingham Falls, N. H.......... 76

Otis Reservoir, Mass., contents of 255,256 

Ottauquechee River at North Hartland, Vt...................... 191

Otter Brook near Keene, N. H........ 203

Oyster River near Durham, N. Y...... 82

Park River at Hartford, Conn........ 249

North Branch, at Hartford, Conn..247-248 

South Branch, at Hartford, Conn..245-246

Parker River at Byfield, Mass....... 120

Passadumkeag, Maine, Penobscot River

at............................ 45

Passadumkeag River at Lowell, Maine. 44

Passumpsic River at Passumpsic, Vt.. 177 

near East Haven, Vt............... 174

Pawcatuck River at Westerly, R. I... 143 

at Wood River Junction, R. I...... 141

Pawcatuck River basin, R. I., gagingstation records in........... 141-143

Pawtuxet River at Cranston, R. I.... 139 

South Branch, at Washington, R. I. 138

Pawtuxet River basin, R. I., gagingstation records in........... 138-139

Pemadumcook Lake, Maine, contents of 47

Pemigewasset River at Plymouth, N. H. 88 

at Woodstock, N.H................ 85

East Branch, near Lincoln, N. H... 84

Penacook, N. H., Contoocook River at 102

Pennesseewassee Lake, Maine, contents of...................... 71,72

Penobscot River at Passadumkeag,

Maine......................... 45

at West Enfield, Maine............ 43

East Branch, at Grindstone, Maine. 28 

near Mattawamkeag, Maine.......... 29

Penobscot River basin, Maine,

gaging-station records in..... 28-47
INDEX

Penobscot River basin, Maine, reservoirs in......................... 47

Pequabuck River at Forestville, Conn... 242

Peterboro, N. H., Contoocook River at 95

Nubanusit Brook near................. 96

Piscataqua River basin, Maine-N. H.,

gaging-station records in........ 81-83

Piscataquis River at Medford, Maine.... 42

near Dover-Foxcroft, Maine........... 31-39

Picataquog River near Goffstown,

N. H. ............................ 105

South Branch, near Goffstown, N. H... 104 

Pitch Reservoir, Conn., contents of.... 279

Pittsburg, N. H., Connecticut River

near............................. 170

Pittsfield, Maine, Sebasticook River

near............................. 58

Pleasant River near Milo, Maine........ 41

Plymouth, N. H., Pemigewasset River at 88 

Pomperaug River at Southbury, Conn....273-274

Poquonock Bridge, Conn., Great Brook at 144 

Potowomut River near East Greenwich,

R. I. ............................ 140

Presumpscot River at outlet of Sebago

Lake, Maine...................... 74

Priest Brook near Winchendon, Mass..... 208

Providence River basin, Mass.-R. I.,

gaging-station records in.......131-137

Publications on streamflow by Geological Survey....................... 8-11

by State agencies.................... 11

Putnam, Conn., Quinebaug River at...... 165

Quabbin Reservoir, Mass., contents of 255,256

Quaboag River at West Brimfield, Mass.. 225

Quinebaug River at Jewett City, Conn... 168

at Putnam, Conn...................... 165

at Quinebaug, Conn..................160-164

at Westville, Mass................... 157

at Wallingford, Conn................258-261

Quinsigamond River at North Grafton,

Mass............................. 132

Rainbow, Conn., Farmington River at.... 244

Randolph, Vt., Ayers Brook at.......... 186

Rangeley Lake, Maine, contents of...... 71

Richardson Lakes, Maine, contents of... 71

Ripogenus Lake, Maine, contents of..... 47

Riverton, Conn., West Branch Farmington

river at......................... J40

Robertsville, Conn., Still River at.... 239

Rocky Brook near Sterling, Mass........ 110

Round Pond, Maine, contents of......... 47

Roxbury, Conn., Shepaug River near..... 272

Roxbury, Maine, Swift River near....... 66

Royal River at Yarmouth, Maine......... 73

Rumford, Maine, Androscoggin River at.. 65

Rumney, N. H., Baker River near........ 87

Runoff in inches, definition of........ 2

Saco River at Cornish, Maine........... 78

near Conway, N. H.................... 75

Saco River basin, Maine-N. H., gagingstation records in............... 75-79

Safford Brook near Woodstock Valley,

Conn............................. 150

St. Croix River at Vanceboro, Maine.... 21

near Baileyville, Maine .............. 23

St. Croix River basin, Maine, gagingstation records in. .............. 21-23

St. John River at Dickey, Maine........ 15

at Ninemile Bridge, Maine............ 14

below Fish River, at Fort Kent, Maine 17 

St. John River basin, Maine, gagingstation records in............... 14-20

St. Johnsbury, Vt., Moose River at..... 176

Salmon Brook near Granby, Conn......... 243

Salmon Falls River near South Lebanon,

Maine............................ 81

Salmon River near East Hampton, Conn... 252 

Sandy River near Mercer, Maine......... 57

Saugatuck River near Westport, Conn,... 280 

Saxtons River at Saxtons River, Vt..... 195

Scantic River at Broad Brook, Conn....236,237

Sebago Lake, Maine, Presumpscot River

at outlet of..................... 74

Sebasticook River near Pittsfield,

Maine............................ 58

Sebec Lake, Maine, contents of......... 47

Sebec River at Sebec, Maine............ 40

Page 

Second Connecticut Lake, N. H.,

contents of...................255,256

Second Lake, Maine, contents of...... 47

Second Roach Pond, Maine, contents of 60 

Shattuckville, Mass., North River at. 215 

Sheepscot River at North Whitefield,

Maine.......................... 48

Shenipsit Lake, Conn., contents of... 256 

Shepaug Reservoir, Conn., contents of 279 

Shepaug River at Woodville, Conn..... 271

near Roxbury, Conn................. 272

Shetucket River near Willimantic,

Conn.......................... 153-156

Smith River near Bristol, N. H....... 90

Somerset Reservoir, Vt., contents of 255,256 

Souhegan River at Merrimack, N. H.... 108

South Coventry, Conn., Willimantic

River near.................... 145-148

South Lebanon, Maine, Salmon Falls

River near.....................

South Limington, Maine, Little

Ossipee River near.............

South Middleton, Mass., Ipswich River

at.............................

South Paris, Maine, Little Androscoggin River near..............

South Royalston, Mass., Millers River

at.............................

South Twin Lake, Maine, contents of..

81

79

121

68

209 

47

Southbury, Conn., Pomperaug River at 273-274 

Spencer Lake, Maine, contents of..... 60,61

Springfield, Mass., Mill River at.... 227

Squam River at Ashland, N. H......... 89

Squannocook River near West Grofcon,

Mass........................... 112

Stage-discharge relation, definition

of............................. 3

State Farm, Mass., Taunton River at.. 129 

Sterling, Mass., Rocky Brook near.... 110

Stevenson, Conn., Housatonic River at 275 

Still River at Robertsville, Conn.... 239

near Lanesville, Conn.............. 270

Sudbury River at Framingham Center,

Mass........................... 115

Sugar River at West Claremont, N. H.. 192 

Sunapee Lake, N. H., contents of.... 255,255

Suncook River at North Chichester,

N. H........................... 103

Surry Mountain Reservoir, N. H., contents of......................255,256

Swift River (Androscoggin River

basin) near Roxbury, Maine..... 66 

Swift River (Connecticut River basin)

at West Ware, Mass............. 224

East Branch, near Hardwick, Mass... 223 

Sykes Brook at Knightville, Mass..... 230

Tarbell Brook near Winchendon, Mass.. 206 

Taunton River at State Farm, Mass.... 129

Taunton River basin, Mass., gagingstation records in............129-130

Telos Lake, Maine, contents of....... 47

Tenmiie River near Gaylordsville,

Conn..........................267-268

Terms, definition and abbreviation

of............................. 2-3

Thames River basin, Conn.-Mass.,

gaging-station records in.....145-169

The Forks, Maine, Dead River at...... 53

Kennebec River at.................. 51

The Weirs, N. H., Lake Winnipesaukee

at............................. 91

Thomaston, Conn., Leadmine Brook near 277 

Naugatuck River near............... 276

Thompson Lake, Maine, contents of.... 71,72

Thompsonville, Conn., Connecticut

River at....................... 235

Tilton, N. H., Winnipesaukee River at 93 

Tower Hill Pond, N. H., contents of.. 119 

Tully Reservoir, Mass., contents of 255,256 

Tully River, East Branch, near Athol,

Mass........................... 210

Turner Center, Maine, Nezinscot River

at............................. 67

Turners Falls, Mass., Connecticut

River at....................... 213

Umbagog Lake, Maine, contents of..... 71,72 

Union River, West Branch, at Amherst,

Maine.......................... 27
Union Village, Vt., Ompompanoosuc

River at.......................

Union Village Reservoir, Vt., contents of.......................

Upper Ammonoosuc River near Groveton,

N. H............................ 172

Page 

184 

255

Vanceboro, Maine, St. Croix River at.. 21

Vernon, Vt., Connecticut River at..... 200

Victory, Vt., Moose River at.......... 175

Wading River (tributary to Three Mill

River) near Norton, Mass........ 130

Waits River, South Branch, near Bradford, Vt........................ 183

Wallingford, Conn., Quinnipiac River

at.............................258-261

Waltham, Mass., Charles River at...... 126

Ware River at Coldbrook, Mass......... 220

at Gibbs Crossing, Mass............. 221

near Barre, Mass.................... 219

Warner River at Davisville, N. H...... 100

Warrenville, Conn., Mount Hope River

near............................ 151

Washbur-n, Maine, Aroostook River at... 19 

Washington, R. I., South Branch Pawtuxet River at.................. 138

Watershops Pond, Mass., contents of..255,256 

Webster, Mass., French River at....... 159

Webster, N. H., Blackwater River near. 101 

Wells River at Wells River, Vt.......181-182

Connecticut River at................ 180

Wendell Depot, Mass., Moss Brook at... 211 

Wentworth, N. H., Baker River at...... 86

Wentworth Location, N. H., Diamond

River near...................... 62

West Brimfield, Mass., Quaboag River

at.............................. 225

West Canaan, N. H., Mascoma River at.. 189 

West Chesterfield, Mass., Westfield

River at........................ 228

West Claremont, N. H., Sugar River- at. 192 

West Deerfield, Mass., Deerfield River

near............................ 216

West Enfield, Maine, Penobscot River

at.............................. 43

West Groton, Mass., Squannacook River

near............................ 112

West Hartford, Vt., White River at.... 187

West Kennebunk, Maine, Mousam River

near............................ 80

231

234

232

280

157

,256

187

185

Page 

West River at Jamaica, Vt............ 198

at Newfane, Vt..................... 199

West Ware, Mass., Swift River at..... 224

Westerly, R. I., Pawcatuck River at... 143 

Westfield Little River at outlet of 

Cobble Mountain Reservoir, 

near Westfield, Mass...........

Westfield River at Knightville, Mass. 

at West Chesterfield, Mass.........

Middle Branch, at Goss Heights,

Mass ............................

near Westfield, Mass...............

West Branch, at Huntington, Mass... 

Westport, Conn., Saugatuck River near 

Westville, Mass., Quinebaug River at 

Whigville Reservoir, Conn., contents

of............................25,

White River =tt West Hartford, Vt. .. .

near Bethel, Vt...................

White River Junction, Vt., Connecticut River at..................

Whitneyville, Maine, Machias River at 

Wigwam Reservoir, Conn., contents of. 

Williams River at Brockway Mills, Vt. 

Willimantic, Conn., Natchaug River at

Shetucket River near..............153-156

Willimantic River near South Coventry, Conn..................... 145-148

Wilson Pond, Maine, contents of...... 47

Winchendon, Mass., Millers River near 207 

Priest Brook near.................. 208

Tarbell Brook near................. 206

Winchester, Mass., Aberjona River at. 123 

Winnipesaukee River at Tilton, N. H.. 93 

Wood River at Hope Valley, R. I...... 142

Wood River Junction, R. I., Pawcatuck

River at....................... 141

Woodstock, N. H., Pemigewasset River

at............................. 85

Woodstock Valley, Conn., Safford

Brook near..................... 150

Woodville, Conn., Shepaug River at... 271 

Woonasquatucket River at Centerdale,

R. I........................... 137

Woonsocket, R. I., Blacks tone River at 136 

Worcester, Mass., Kettle Brook at.... 131

Work, division of.................... 1

scope of........................... 1

Wyman Pond, Maine, contents of....... 60,61

Yantic River at Yantic, Conn.... 

Yarmouth, Maine, Royal River at.

169

73

U S GOVERNMENT PRINTING OFFICE 0 1954