Surface Water Supply 

of the United States 

1955

Part 1 -A. North Atlantic Slope Basins, Maine 

to Connecticut

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1381

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 : 1957
UNITED STATES DEPARTMENT OF THE INTERIOR 

FRED A. SEATON, Secretary

GEOLOGICAL SURVEY 

Thomas B. Nolan, Director

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

Washington 25, D. C.
PREFACE

This report was prepared by the Geological Survey in cooperation 

with the States of Connecticut, Maine, Massachusetts, Nev Hampshire, Rhode Island, and Vermont, and with other agencies, by personnel of the Water Resources Division, C. G. Paulsen, chief, succeeded 

by L. B. Leopold, under the general direction of J. V. B. Wells, chief, 

Surface Water Branch, and B. J. Peterson, chief, Annual Reports 

Section.

The data were collected and computed under supervision of district 

engineers, Surface Water Branch, as follows:

B. L. Bigwood__________________________Hartford, Conn. 

H. B. Kinnison__________________________Boston, Mass. 

M. R. Stackpole________________________Augusta, Maine

in
CALENDAR FOR WATER YEAR 1955

OCTOBER 1954

S M T W T F S 

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17 18 19 20 21 22 23 

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31

JANUARY 1955

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APRIL 1955

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JULY 1955

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NOVEMBER 1954

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14 15 16 17 18 19 20 

21 22 23 24 25 26 27 

28 29 30

FEBRUARY 1955

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6 7 8 9 10 11 12

13 14 15 16 17 18 19

20 21 22 23 24 25 26

27 28

MAY 1955

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29 30 31

AUGUST 1955

S M T W T F S 

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14 15 16 17 18 19 20 

21 22 23 24 25 26 27 

28 29 30 31

DECEMBER 1954

S M T W T F S 

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5 6 7 8 9 10 11 

12 13 14 15 16 17 18 

19 20 21 22 23 24 25 

26 27 28 29 30 31

KARCH 1955

5 M T W T F S 

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6 7 8 9 10 11 12

13 14 15 16 17 18 19

20 21 22 23 24 25 26

27 28 29 30 31

JUNE 1955

S M T W T F S 

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5 6 7 8 9 10 11 

12 13 14 15 16 17 18 

19 20 21 22 23 24 25 

26 27 28 29 30

SEPTEMBER 1955

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11 12 13 14 15 16 17 

18 19 20 21 22 23 24 

25 26 27 28 29 30

[V
CONTENTS

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

Cooperation..................................................................

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

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

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

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

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

Publications.................................................................

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

Hydrologic conditions........................................................

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

St. John River basin

St. John River at Ninemile Bridge, Maine...................................

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

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

St. Francis River at outlet of Glacier Lake, near Connors, New Brunswick. 

Pish River near Port Kent, Maine .........................................

St. John River below Pish River, at Port Kent, Maine.......................

Aroostook River:

Machias River near Ashland, Maine ......................................

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

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

St. Croix River basin

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

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

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

Machias River basin

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

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

NarraguagUo River basin

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

Union River basin

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

Penobscot River basin 

Penobscot River:

East Branch Penobscot River at Grindstone, Maine.. 

Penobscot River near Mattawamkeag, Maine............

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

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

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

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

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

Penobscot River at West Enfield, Maine ..............

Passadumkeag River at Lowell, Maine ...............

Penobscot River at Passadumkeag, Maine..............

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

Reservoirs in Penobscot River basin, Maine..........

Sheepscot River basin

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

Kennebec River basin

Moose River (head of Kennebec River):

Moosehead Lake at East Outlet, Maine................

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

Kennebec River at The Porks, Maine..................

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

Dead River at The Porks, Maine....................

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

Kennebee River at Bingham, Maine....................

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

Sandy River near Mercer, Maine ....................

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

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

Smaller reservoirs in Kennebec River basin, Maine... 

Androscoggln River basin 

Androscoggin River: 

Dmbagog Lake:

Magalloway River:

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

Androscoggin River at Errol, N. H. ..................

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

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

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

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

Little Androscoggin River near South Paris, Maine.

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

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

Cathance River near Topsham, Maine................

Reservoirs' in Androscoggin River basin. .............

Royal River basin

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

Presumpscot' River basin

Presumpscot River at outlet of Sebago Lake, Maine...
VI CONTENTS

Gaglng-s tat lull records--Continued

Saco River basin Page

Saco River near Conway, N. H....................................................... 69

Ussipee River at Effingham Palls, N. H. .......................................... 70

Ossipee River at Cornish, Maine .................................................. 71

Saco River at Cornish, Maine ....................................................... 72

Little Ossipee River near South Limington, Maine................................. 73

Mousam River basin

Mousam River near West Kennebunk, Maine............................................ 74

Piscataqua River basin

Salmon Falls River (head of Poscataqua River) near South Lebanon, Maine ............ 75

Oyster River near Durham, H. H. .................................................. 76

Lamprey River near Newmarket, N. H............................................... 77

Merrimack River basin

Pemigewasset River (head of Merimack River) at Woodstock, N. H. .................... 78

Pemigewasset River at Plymouth, N. H............................................... 80

Squam River at Ashland, N. H..................................................... 81

Smith River near Bristol, N. H................................................... 82

Lake Winnipesaukee at The Weirs , N A H............................................ 83

Lake Winnipesaukee Outlet at Lakeport, N. H...................................... 84

Winnipesaukee River at Tilton, N. H.............................................. 85

Merrimack River at Franklin Junction, N. H......................................... 86

Contoocook River at Peterboro, N. H.............................................. 87

Nubanusit Brook near Peterboro, N. H........................................... 88

North Branch Contoocook River near Antrim, N. H................................ 89

Beards Brook near Hillsboro, N. H............................................ 90

Contoocook River near Henniker, N. H. ............................................ 91

Warner River at Davisville, N. H............................................... 92

Blackwater River near Webster , N. H ............................................ 93

Contoocook River at Penacook, N. H. .............................................. 94

Soucook River near Concord, N. H................................................. 95

Suncook River at North Chichester, N . H. ......................................... 96

Piscataquog River:

South Branch Piscataquog River near Goffstown, N. H............................ 97

Piscataquog River near Goffstown, N. H........................................... 98

Merrimack River near Goffs Falls, below Manchester, N. H........................... 99

Cohas Brook:

Massabesic Lake:

Clark Brook at Auburn, N. H.................................................. 100

Souhegan River at Merrimack, N. H................................................ 101

North Nashua River (head of Nashua River) near Leominster, Mass .................. 102

South Branch Nashua River: 

Stillwater River:

Rocky Brook near Sterling, Mass ............................................ 103

South Branch Nashua River at Clinton, Mass ..................................... 104

Squannacook River near West Groton, Mass ....................................... 105

Nashua River at East Pepperell, Mass............................................. 106

Assabet River (head of Concord River) at Maynard, Mass ........................... 107

Sudbury River at Pramingham Center, Mass ....................................... 108

Lake Cochituate uutlet at Cochituate, Mass ................................... 108

Concord River below River Meadow Brook, at Lowell, Mass .......................... 109

Merrimack River below Concord River, at Lowell, Mass............................... 110

Reservoirs in Merrimack River basin................................................ Ill

Parker River basin

Parker River at Byfield , Mass...................................................... 112

Ipswich River basin

Ipswich River at South Middleton, Mass............................................. 113

Ipswich River near Ipswich, Mass .................................................... 114

Mystic River basin

ftberjona River (head of Mystic River) at Winchester, Mass.......................... 115

Charles River basin

Charles River at Charles River Village, Mass ....................................... 116

Mother Brook at Dedham, Mass ..................................................... 117

Charles River at Waltham, Mass ..................................................... 118

Neponset River basin

Neponset River at Norwood, Mass .................................................... 119

East Branch Neponset River at Canton, Mass ..... ................................. 120

Westport River basin 

Westport Kiver:

West Branch Westport River:

Adarasville Brook at Adamsville , R. I........................................... 121

Taunton giver basin

Taunton River at State Farm, Mass .................................................. 122

Three Mile River:

Wading River at West Mansfield, Mass ........................................... 123

Wading River near Norton, Mass ................................................. 124

Providence River basin

Kettle Brook (head of Providence River) at Worcester, Mass......................... 125

Quinsigamond River at North Grafton, Mass ........................................ 126

Blackstone River (continuation of Kettle Brook) at Northbridge , Mass ............... 127

Branch River at Forestdale, R. I ................................................. 128

Blackstone River at Woonsocket, R. I............................................... 129

Providence River:

Woonasquatueket River at Centerdale, R. I........................................ 130

Pawtuxet River basin 

Pawtuxet River:

South Branch Pawtuxet River at Washington, R. I.................................. 131

Pawtuxet River at Cranston, R. I.................................... 132

Potowomut River basin

Potowomut River near East Greenwich, R. I. ......................................... 133
CONTENTS VII

Gaging-station records--Continued

Pawcatuck River basin Page 

Pawcatuck River at Wood River Junction, R. I....................................... 134

Wood River at Hope Valley, R. I. ................................................. 135

Pawcatuck River at Westerly, R. I.................................................. 136

Poquonock River basin

Great Brook (head of Poquonock River) at Poquonock: Bridge, Conn. ................... 137

Thames River basin

Willitnantic River (head of Thames River) near South Coventry, Conn................. 138

Hop River near Columbia, Conn.................................................... 139

Still River (head of Natchaug River): 

Bungee Brook:

Safford Brook near Woodstock Valley, Conn.................................... 140

Mount Hope River near Warrenville, Conn........................................ 141

Natchaug River:

Mansfield Hollow Reservoir at Mansfield Hollow, Conn............................. 142

Natchaug River at Willimantic, Conn.............................................. 143

Shetucket River (continuation of Willimantic River) near Willimantic, Conn........ 144

Little River near Hanover, Conn.................................................. 145

Quinebaug River at Westville, Mass............................................... 146

Quinebaug River at Quinebaug, Conn............................................... 147

French River:

Little River at Buffumville, Mass ............................................ 148

Five Mile River at Killingly, Conn............................................. 151

Moosup River at Moosup, Conn................................................... 152

Quinebaug River at Jewett City, Conn............................................. 153

Yantic River at Yantic, Conn..................................................... 154

Connecticut River basin

Connecticut River at First Connecticut Lake, near Pittsburg, N. H.................. 155

Connecticut River at North Stratford, N. H......................................... 156

Upper Amraonoosuc River near Groveton, N. H....................................... 157

Connecticut River near Dalton, N. H................................................ 158

East Branch Passumpsic River near East Haven, Vt................................. 159

Passumpsic River:

Moose River at Victory, Vt..................................................... 160

Moose River at St. Johnsbury, Vt............................................... 161

Passumpsic River at Passumpsic, Vt............................................... 162

Ammonoosue River at Bethlehem Junction, N. H..................................... 163

Ammonoosue River near Bath, N. H. ................................................ 164

Connecticut River at Wells River, Vt. . ............................................ 165

Wells River at Wells River, Vt................................................... 166

Ompompanoosuc River at Union Village, Vt......................................... 167

White River near Bethel, Vt...................................................... 168

Third Branch White River:

Ayers Brook at Randolph, Vt.................................................. 169

White River at West Hartford, Vt................................................. 170

Connecticut River at White River Junction, Vt...................................... 171

Mascoma River at West Canaan, N. H............................................... 172

Mascoma River at Mascoma, N. H................................................... 173

Ottauquechee River at North Hartland, Vt......................................... 174

Sugar River at West Claremont, N. H.............................................. 175

Black River at North Springfield, Vt............................................. 176

Williams River at Brockwsy Mills, Vt............................................. 177

Saxtons River at Saxtons River, Vt............................................... 178

Connecticut River at North Walpole, N. H........................................... 179

Cold River at Drewsville, N. H ................................................... 180

West River at Jamaica, Vt........................................................ 181

West River at Newfane , Vt........................................................ 182

Connecticut River at Vernon, Vt.................................................... 183

Ashuelot River near Gilsum, N. H................................................. 184

Ashuelot River below Gurry Mountain Dam, near Keene, N. H. ....................... 185

The Branch:

Otter Brook near Keene, N. H................................................. 186

South Branch Ashuelot River at Webb, near Marlboro, N. H....................... 187

Ashuelot River at Hinsdale, N. H................................................. 188

Millers River:

Tarbell Brook near Winchendon, Mass ............................................ 189

Millers River near Winchendon, Mass ............................................... 190

Priest Brook near Winchendon, Mass ............................................. 191

Millers River at South Royalston, Mass........................................... 192

East Branch Tully River near Athol, Mass ....................................... 193

Moss Brook at Wendell Depot, Mass .............................................. 194

Millers River at Erving.Mass .................................................... 195

Connecticut River at Turners Falls, Mass........................................... 196

Deerfield River at Charlemont, Mass .............................................. 197

North River at Shattuckville, Mass ............................................. 198

Deerfield River near West Deerfield, Mass ........................................ 199

Connecticut River at Montague City, Mass........................................... 200

Mill River at Northampton, Mass.................................................. 201

Ware River (head of Chicopee River) near Barre, Mass............................. 202

Ware River at Coldbrook, Mass.................................................... 203

Ware River at Gibbs Crossing, Mass............................................... 204

Swift River:

Hop Brook near New Salem, Mass............................................... 205

East Branch Swift River near Hardwick, Mass.................................. 206

Swift River at West Ware , Mass ................................................. 207

Quaboag River at West Brimfield, Mass.......................................... 208

Chicopee River at Indian Orchard, Mass........................................... 209

Westfield River at Knightville, Mass. ............................................ 210
VllI CONTENTS

Oag.'.ng-station records--Continued 

Connecticut River basin~-Continued 

Westfield River--Continued

Sykes Brook at Knightville, Mass..............................................

Middle Branch Westfield River at Goss Heights, Mass ...........................

West Branch Westfield River at Huntington, Mass...............................

Westfield Little River at outlet of Cobble Mountain Reservoir, near Westfield, 

Mass.....................................................................

Westfield River near Westfield, Mass............................................

Connecticut River at Thompsonvllle, Conn..........................................

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

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

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

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

Farmington River:

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

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

Salmon Brook near Granby, Conn.................................................

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

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

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

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

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

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

Eightmile River at North Plain, Conn.............................................

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

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

Menunketesuck .River_basin

Menunketesuck "River"hear "Clinton, Conn............................................. 234

guinnipiac River basin

Quinniplac River" at Wailingford, Conn.............................................. 235

Housatonic River basin

East Branch" rfousatonic River at Coltsville, Mass ................................... 237

Housatonic River near Great Barrington, Mass....................................... 238

Green River near Great Barrington, Mass.......................................... 239

Blackberry River at Canaan, Conn................................................. 240

Housatonic River at Falls Village, Conn............................................ 241

Tenmile River near Gaylordsville, Conn,.......................................... 242

Housatonic River at daylordsville, Conn............................................ 243

Still River near Lanesville, Conn................................................ 244

ShepaUg River at Woodville, Conn................................................. 245

ShepaUg River near Roxbury, Conn................................................. 246

Pomeraug River at Southbury, Conn................................................ 247

Housatonic River at Stevenson, Conn................................................ 248

Naugatuck River near Thomaston, Conn............................................. 249

Leadmine Brook near Thomaston, Conn............................................ 250

Naugatuck River near Naugatuck, Conn............................................. 251

Reservoirs in Housatonic River basin............................................... 252

Sa ug a tuck Ri ver b asin

Saugatuck River near Westport, Conn................................................ 253

Discharge measurements at points other than gaging stations.......................... 254

Index................................................................................ 259

ILLUSTRATIONS

Page 

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

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

Masa.................................................................... 4

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

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

3. Comparison of discharge at two key gaging stations during 1955 water year

with median discharge for 25-year period................................ 12
SURFACE WATER SUPPLY OF NORTH ATLANTIC SLOPE BASINS, MAINE TO CONNECTICUT, 1955

SCOPE OF WORK

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

water year ending September 30, 1955. Since 1888, when the United States Geological Survey first studied streamflow in relation to problems of irrigation, similar measurements 

have been made at more than 13,250 gaging stations in the 48 States and at many others in 

the Territories of Alaska and Hawaii. On September 30, 1955, the Geological Survey and 

cooperating organizations were maintaining 6,860 gaging stations, including those in 

Alaska and Hawaii. Discharge measurements only were made at many other points in the 1955 

water year, most of which are published at the end of each report. The name of each 

stream measured at points other than gaging stations is not listed in the index of this 

report. Only the major river basins in which measurements were made are listed under the 

item "Discharge measurements" in the index.

COOPERATION

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

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

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

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

Connecticut: State Water Commission, H. P. Koppleman, chairman, and W. S. Wise, 

director; city of Hartford, Department of Public Works, C. W. Cooke, director; city 

of New Britain, Board of Water Commissioners, Russell Willoughby, chairman, and 

0. W. Wood, chief engineer.

Maine: Maine Public Utilities Commission, S. T. Pike, chairman. 

Massachusetts: State Department of Public Health, S : B. Kirkwood) commissioner, 

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

J. A. Volpe, commissioner; Metropolitan District Commission, C. W. Greenoufh, commissioner, and H. J. Toole, director and chief engineer of Water Division; city of 

Attleboro, C. K. Brennan, mayor.

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

Rhode Island: State Department of Public Works, H<=nry Ise , chief of Division of 

Harbors and Rivers.

Vermont: Water Conservation Board, R. W. Thieme, 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 

1 was in Connecticut, 11 were in Massachusetts, 15 in New Hampshire, and 11 in Vermont.

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

of the Interior and the Water Resources Branch, Department of Northern Affairs and National 

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

maintained jointly by the United States and Canada under the terms of the Boundary Waters 

Treaty of 1909, and others are maintained under a subsequent agreement between the two

1
2 SURFACE WATER SUPPLY, 1955, PART 1-A

Governments. The records from all these stations are obtained in such a manner as to be 

equally acceptable and available in both countries. These stations are herein designated 

as "international gaging stations."

The following organizations aided in collecting records:

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

Waterbury, Bridgeport Hydraulic Co., Coll ins Co., Connecticut Light & Power Co., 

Connecticut Power Co., Farmington River Power Co., Guilford-Chester Water Co., and 

Rockville Water & Aqueduct Co.

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

Massachusetts: New 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 work was done by the Water Resources Division of the Geological Survey under the direction of personnel shown in the preface. The data for stations in the 

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

below.

State District office Address

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

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

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

New Hampshire a/........... 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 Saco River near Conway, N. H.

c/ Including Connecticut River at Thompsonville, Conn.

d/ Except for Androscoggin River near Errol and near Gorham, 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 

as follows :

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

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

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

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

is distributed uniformly in time and area.

Runoff in inches is the depth to which an area would be covered if all the water draining from it in a given period were uniformly distributed on its surface. The terra 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.
EXPLANATION OF DATA 3

Cfs-day is the volume of water represented by a flow of 1 cubic foot per second for 24 

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

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

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

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

Control designates a feature downstream from the gage that determines the stage-discharge 

relation at the gage. This feature may be a natural constriction of the channel, a long 

reach of the channel, or an artificial structure.

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

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

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

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

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

within the area unless otherwise noted.

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

published reports.

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 was changed. In this report, in a downstream 

direction along the main stem all stations on a tributary entering above a main-stem station are listed before that station. If a tributary enters between two main-stem stations, 

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

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

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

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

represents one rank. This downstream order and system of indention show which gaging stations are on tribtaries 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.
SURFACE WATER SUPPLY, 1955, PART 1-A

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

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

necessary to define the extremes of discharge, they are made on the basis of indirect determinations of peak discharge (such as slope-area or contracted-opening determinations, 

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

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

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

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

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

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

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

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

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

At some gaging stations the stage-discharge relation is affected by backwate- 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 ant at some distance from the base gage. At some stations the stagedischarge relation is affected by changing stage. If so, the rate of change in stage is 

used as a factor in the determination of discharge.

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

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

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

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

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

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

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

daily records is not changed.

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

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

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

and ends on September 30. A calendar for the water year 1955 is shown on page IV for the 

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

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

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

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

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

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

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

which there are published records generally equivalent to those at present site. Under 

"Gage" are given the type of gage currently in use and the datum of the present gage above 

mean sea level, and a condensed history of the types, locations, and datums of previous 

gages used during the period of records available. Under "Average discharge" is given the
6 SURFACE WATER SUPPLY, 1955, PART 1-A

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

fewer than five complete years of record or for stations where changes in water development during the period of record cause the figure to have little significance. Under 

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

is little or no regulation; the minimum daily discharge if there is extensive regulation 

(also the minimum discharge if useful); and the minimum gage height (unless it is of no 

importance). In the first paragraph, the data given are for the complete current water 

year unless otherwise specified. In the second paragraph, the data given are for the periods of record within the calendar year dates in the heading (not necessarily those for the 

complete years indicated by the heading dates). Reliable information concerning major 

floods that have occurred outside the period of record are given in the third or last paragraph under "Extremes." Unless otherwise qualified, the maximum discharge corresponds to 

the crest stage obtained by use of a water-stage recorder, a crest-stage indicator, or a 

nonrecording gage read at the time of the crest. If the 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 (wate" years)" has been 

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

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

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

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

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

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

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

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

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

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

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

area necessitates corresponding revision of all figures based on the drainage area. Revised figures of cubic feet per second per square mile and runoff in inches resulting from 

a revision of the drainage area only are usually not published in the annual series of 

reports.

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

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

not published for stations on canals.

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

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

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

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

the discharge for parts of the day or by using the discharge integrator, an instrument for
ACCURACY OF FIELD DATA AND COMPUTED RESULTS 7

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

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

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

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

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

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

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

station description.

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

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

day of Its occurrence.

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

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

the average flow in cubic feet per second during the month. Runoff for the month may be 

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

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

second per square mile and runoff in inches are omitted if the drainage area includes 

large noncontributlng areas, or if the average annual rainfall over the drainage basin is 

usually less than 20 inches.

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

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

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

most stations are listed below the table of dally 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 soire reservoirs 

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

stages is usually given in the first report in which data for the reservoir are published, 

but it Is omitted from succeeding reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of streamflow data depends primarily on (1) the stability of 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"
8 SURFACE WATER SUPPLY, 1955, PART 1-A

indicates that, In general, the error In the dally records Is believed to be less than 5 percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor," probably 

more than 15 percent. The records of monthly and yearly mean discharge and runoff are, 

in general, more nearly accurate than the daily records.

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

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

evaporation due to artificial causes, or to other factors. For such stations, figures of 

cubic feet per second per square mile and runoff in inches are not published unless storage or diversion records are included to indicate the extent of the regulation or diversion, or unless satisfactory adjustments can be made for changes in contents of reservoirs 

or for other changes incident to use and control. Evaporation from a reservoir is not included in the adjustments for changes in reservoir contents, unless it is so stated. Even 

at those stations where adjustments are made, large errors in computed runoff may 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 therfore 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, Hew 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, OgeeThee River 

to Pearl River.

3. Ohio River basin, In two volumes:

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

B, Cumberland and Tennessee River basins.

4. St. Lawrence River basin.

5. Hudson Bay and upper Mississippi River basins.

6. Missouri River basin, in two volumes:

A, Missouri River basin above Sioux City, Iowa. 

B, Missouri River basin below Sioux City, Iowa.

7. Lower Mississippi River basin.

8. Western Gulf of Mexico basins.

9. Colorado River basin.

10. The Great Basin.

11. Pacific slope basins in California.

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

13. Snake River basin.

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

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

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

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

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

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

Geological Survey, Washington, D. C.

2. Sets of the reports may be consulted in the libraries of the principal cities in 

the United States.
PUBLICATIONS
10 SURFACE WATER SUPPLY, 1955, PART 1-A

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 1884-1901, In reports of the Geological Survey 

(A = Annual Report; B - Bulletin)

Report

10th A pt. 2

16th A, pt. 2 

B 140........

18th A, pt. 4

19th A, pt. 4

WSP 35 to 39

21st A Dt 4

WSP 65, 66.. . 

WSP 75.. .....

Character of data

Descriptive information only.

Descriptive information only.

monthly discharge.

Descriptions, measurements, ratings, and monthly discharge.

east of the Mississippi River, and Missouri River and 

tributaries above Kansas River.

west of the Mississippi River, except Missouri River and 

tributaries above Kansas River, 

Descriptions, measurements, ratings, and monthly discharge.

the Mississippi River, and Missouri River and tributaries.

the Mississippi River, except Missouri River and tributaries.

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

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

Year

1884 to June 30, 1891.

1884-92 .

1888-93.

1893-94.

1895.

1896.

1895-96. 

1897.

1897.

1897. 

1898.

1898.

1898.

1899.

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, 1899-1955

Year

1899

1900

1901

1902

1903

1904

1905

1906

1907-8

1909

1910

WSP

35

47

65, 75

82

97

124

165

201

241

261

281

Year

1911

1912

1913

1914

1915

1916

1917

1918

1919-20

1921

1922

WSP

301

321

351

381

401

431

451

471

501

521

541

Year

1923

1924

1925

1926

1927

1928

1929

1930

1931

1932

1933

WSP

561

581

601

621

641

661

681

696

711

726

741

Year

1934

1935

1936

1937

1938

1939

1940

1941

1942

1943

1944

WSP

756

781

801

821

851

871

891

921

951

971

1001

Year

1945

1946

1947

1948

1949

1950

1951

1952

1953

1954

1955

WSP

1031

1051

1081

1111

1141

1171

1201

1231

1271

1331

1381

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

Discharge measurements at many points other than regular gaging stations have been made 

each year and are published at the end of each report. The streams and points of measurement are listed In the same order as the streams and gaging stations In the body of the 

report. An Index of the records obtained before 1904 has been published In Water-Supply 

Paper 119.

A compilation of records for the area covered by this report through September 1950 

has been published as Water-Supply Paper 1301. That report contains a summary 

of monthly and annual discharges for all previously published records as well as some 

records not contained in the annual series of water-supply papers. All records were
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 11

reexamined and revised where warranted. Estimates of discharge were made to fill short 

gaps whenever practical.

Records of discharge have been published also In State reports. Most of these records 

are also compiled In Water-Supply Paper 1301; however, some of them are not contained in 

publications of the Geological Survey. The following table contains a list of these reports for the area covered by this report.

State reports containing compilations of records of discharge

State

Connecticut. . .

Maine. ........ 

New Hampshire.

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 .......

Geological Bull. 6, Ground-water resources 

of Rhode Island.

Issued by

State Geological and Natural History Survey.

Maine Water Power Commission. 

Public Service Commission.

Works . 

Rhode Island Development 

Council.

Mote.--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:

Title

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

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

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

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

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

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

WSP 867:- Hurricane floods of September 1938.

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

WSP 967-C: Flood of August 21, 1939, in town of Baldwin, Maine.

WSP 1137-1: Summary of floods in the United States during 1950.

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SUFVEY

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 1954 to September 1955 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

Androscoggin River. ....

Penobscot River. .......

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

Penobscot River.

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

Location

Lewiston, Maine ............

Old Town, Maine ............

West Buxton, Maine .........

Guilford, Conn. ............

Period

.... 1929-55

.... 1915-55

.... 1940-55 

.... 1915-55

.... 1930-55

Collected by

Central Maine Power Co. 

Do.

T. W. Clark.

Do.

Do.
^ SURFACE WATER SUPPLY, 1955, PART 1-A

HYDROLOGIC CONDITIONS 

The outstanding feature of the 1955 water year in the area covered by this report was

the record-breaking flood of Aug. 19, 20 in southern New England, caused by hurricane 

Diane. Peak discharges at many gaging stations were 2 to 5 times previous maximums in 

25 to 40 years of record. A preliminary report of this flood has been published as 

Circular 377; a comprehensive report is in preparation, to be published as WSP 1420. 

During October to December, February, August, and September all or most of the area covered 

by this report had excessive runoff. During May runoff was deficient in part of the area, 

and in July it was deficient over almost the entire area. Mean discharge for August was 

record-high at key gaging stations in Connecticut and Massachusetts. Runoff of St. John 

River at Fort Kent, Maine, in October was record-high for the month. In September, runoff 

of Little Androscoggin River near South Paris, Maine, was record-low for the month. For 

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

and yearly mean discharge during the 1955 water year with the median discharge for the

25-year period 1921-45 is shown in figure 3 below.

3000 r - - 

Piscataquis River near Dover-Foxcroft, Maine 

Drainage area, 297 sq mi.

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

Qumebaug River at Jewett City, Conn. 

Drainage area, 711 sq mi.

Oct. Nov. Dec. Jan. Feb. Mar. April May

Explanation

Median of monthly mean discharge for 26-year period 1921-45. 

________ Monthly mean discharge during water year 1956. 

Figure 3. Comparison of discharge at two key gaging stations during 1955 water year with 

median discharge for 25-year period.
GAGING-STATIOW RECORDS 13

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 tank 0.1 mile 

downstream from 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 mi, approximately.

Records available. November 1950 to September 1955.

Gage. Water-stage recorder. Datum of gage is 931.26 ft above mean sea level, adjustment 

of 1929.

Extremes.--Maximum discharge during year, 25,400 cfs Apr. 20 (gage height, 9.33 ft); maximum gage height, 9.61 ft Apr. 14 (backwater from ice); minimum discharge, 89 cfs 

July 13, 14 (gage height, 0.43 ft).

1950-55: Maximum discharge, 27,800 cfs Apr. 23, 1954 (gage height, 9.81 ft); minimum, 59 cfs Sept. 5, 1953 (gage height, 0.25 ft).

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

Rating table, water year 1954-55, except period of ice effect (gage 

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

.7 

1.0 

1.3 

1.6 

2.0 

2.5

83

102

149

240

368

551

882

1,430

3.0

4.0 

5.0 

6.0 

7.0

2,180

4,230

7,050

10,700

14,600

18,700

23,600

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

£1

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

7,980

9,520

8,260

8,160

9,070

8,200

6,700

*5,090

3,880

3,140

2,860

7,390

12,60.0

12,000

9,980

7,510

5,950

4,910

4,040

3,400

2,900

2,550

2,250

2,020

1,820

1,660

1,540

1,900

2,260

2,130 

2,040

163,710

5,281

4.09

4.72

Nov.

1,940

1,820

1,680

1,940

3,180

3,690

3,330

2,800

2,400

2,080

1,870

*1,680

1,440

1,280

1,110

1.010

1,300

1,150

1,120

1,430

3,100

7,290

7,620

5,700

4,230

3,270

2,510

2,130

2,000

1,760

77,860

2,595

2.01

2.24

Dec.

1,570

1,380

1,160

1,050

920

875

830

1,000

1,100

1,050

955

930

1,000

1,100

1,300

1,410

1,490

1,580

1,900

2,200

2,150

2,000

1,960

1,860

1,700

1,570

1,490

1,410

1,310

1 ,280 

1,190

42,720

1,378

1.07

1.23

Jan.

1,160

1,090

1,040

1,000

975

945

920

900

880

855

820

800

760

740

725

680

650

640

625

620

620

620

620

610

*610

595

590

590

590

580 

580

23,430

756

0.586

0.68

Feb.

580

580

575

565

560

560

560

550

550

540

540

530

530

530

525

520

520

520

520

525

530

545

560

590

610

625

640

655

-

-_--

15,635

558

0.433

0.45

Mar.

675

705

690

675

625

590

580

560

540

520

510

550

590

640

725

810

935

1,140

1,510

1,300

*1,290

1,150

1,070

1,000

955

910

865

810

775

775 

790

25,060

808

0.626

0.72

Apr.

810

865

880

930

955

1,020

1,070

1,120

1,180

1,310

1,500

1,680

1,940

2,440

3,990

8,770

15,100

17,400

19,900

20,700

20, 100

19,400

18,800

18,600

17,800

17,000

16,300

14,800

14,200

15,700

276,260

9,209

7.14

7.97

May

16,900

17,000

16,900

17,600

19,400

18,900

16,400

14,000

13,000

11,100

9,220

7,790

6,890

6,480

6,210

5,830

6,760

6,330

5,440

5,120

*4,440

3,710

3,200

3,100

3,200

3,380

3,140

2,580

2,230

2,160 

2,050

260,460

8,402

6.51

7.50

June

2,050

3,290

5,760

3,060

2,570

2,420

1,930

1,490

1,180

956

810

698

783

1,140

1,170

1,050

873

706

558

472

401

374

447

955

1,250

1,040

837

657

558

466

37,951

1,265

0.981

1.09

July

390

549

307

278

244

213

188

168

149

154

115

104

94

92

104

149

955

1,840

1,820

1,500

1,010

775

792

1,570

1,900

1,220

810

605

511

596

512

19,072

615

0.477

0.55

Aug.

507

237

220

200

168

152

220

4,290

5,150

2,970

1,780

1,330

1,150

919

900

2,150

2,280

1,690

1,350

1,180

919

846

1,520

1,870

1,590

946

666

511

418

549 

503

38,161

1,231

0.954

1.10

Sept.

270

248

220

200

182

168

152

142

134

126

132

173

240

312

325

525

447

447

565

384

1,020

1,180

891

657

524

484

435

374

425

610

11,588

586

0.299

0.33

Calendar year 1954: Max 26,600 Min 245 Mean 3,265 Cfsm 2.53 In. 34.35

Water year 1954-55: Max 20,700 Min 92 Mean 2,718 Cfsm 2.11 In. 28.58

Peak discharge (base. 10.000 cfs).--Oct. 14 (2 a.m.) 12 400 cfs (6.42 ft); Apr. 20 (3 p.m.) 

25,400 cfs (9.33 ft); May 5 (10 p.m.) 20,100 cfs (8:30 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 6 to Apr. 16.
14 ST. JOHN RIVER BASIN

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.--2.700 sq mi, approximately.

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

1946 to September 1955.

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. 9 years (1946-55), 4,783 cfs.

Extremes. Maximum discharge during year, 42,700 cfs May 5 (gage height, 12.98 ft); maximum gage height, 16.47 ft Apr. 15 (backwater from ice); minimum discharge, 342 cfs 

July 15 (gage height, 1.69 ft).

1910-11, 1946-55: Maximum discharge, 68,700 cfs May 9, 1947 (gage height, 16.30 ft; 

maximum gage height, 19.88 ft Mar. 29, 1953 (backwater from ice); minimum discharge, 

129 cfs Sept. 17, 1948.

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

which are fair.

Revisions . WSP 1141: Drainage area.

Rating tables, water year 1954-55, except period of Ic 

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

effect (ga;e 

second)

Oct. 1 to Apr. 16 Apr. 17 to Sept. 30

2.4 

3.0 

5.0 

7.0

9.0 

10.0

955

1,770

5,810

11,600

19,500

24,500

1.7 350

E.O 630

2.5 1,190

3.0 1,860

4.0 3,600

5.0 5,810

6.0 8,500

8.0 15,200

10.0 24,500

15.0 42,800

Discharge, In cubic feet per cond, water year October 1954 to September 1955

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

In.

Oct.

11,300

15,700

14,200

12,500

13,600

13,600

11,500

9,300

7,450

6,220

5,590

10,200

16,800

19,600

16,600

12,900

10,400

8,900

7,520

6,500

5,710

5,100

4,630

4,220

3,900

3,580

5.500

3,340

3,900

4,240

4,070

278,370

8,980

3.33

3.84

Nov.

3,930

3,780

3,520

3,820

5,100

6,730

6,810

5,930

5,170

4,560

3,330

3,580

3,300

3,080

3,040

3,120

2,830

2,810

2,630

4,300

12,300

16,800

12 , 900

9,730

7,340

5,790

4,870

4,430

4,140

3,520

163,990

5,466

2.02

2.25

Dec.

3,120

2,870

2,940

2,910

2,540

2,310

2,180

2,340

2,580

2,640

2,450

2,100

2 , 080

2,170

2,400

2,490

2,510

2,680

2,910

3,150

5,600

3,400

3,500

5,150

5,040

2,910

2,810

2,700

2,600

2,510

2,450

85,840

2,705

1.00

1.15

Jan.

,560

,290

,250

,200

,100

,000

,950

,900

,800

,760

,700

,650

,610

,550

,510

,450

,400

,340

,300

,300

,250

,200

,200

* ,180

,180

,170

,170

,160

,160

,140

,140

48,370

1,560

0.578

0.67

Feb.

1,130

1,120

1,110

1,090

1,080

1,080

1,070

1,070

1,060

1,060

1,040

1,040

1,030

1,020

1,020

1,020

1.000

1,000

1,OOO

1,020

*1,040

1,060

1,060

1,090

1,110

1,120

1,140

1.160

-

_ _

.--__.

29,660

1,066

0.595

0.41

Mar.

1,180

1,200

1,200

1,200

1,200

1,180

1,180

1,170

1,180

1,200

1,200

1,280

1,510

1,410

1,510

1,610

1,770

1,880

2,020

2,150

3,180

2,170

*2,120

2,100

2,080

2,050

2,000

1,960

1,980

1,950

1,950

50,570

1,651

0.604

0.70

Apr.

1,910

1 330

1,910

1,950

2,000

2,070

2,120

2,200

2,360

2,510

2,700

2,910

5,210

5,500

4,220

10 , 000

28,200

32,200

36,700

37,600

58,400

35,200

35,100

36,100

36,600

35,900

34,800

32,000

29,300

31,700

528,460

17,620

6.53

7.29

May

36,000

36,900

35,400

37,800

June

6,220

8,590

9,820

6,260

42, 500 1 6,650

40,600

34,100

28,800

25,600

22,800

19,400

17 , 100

15,500

14,700

14,600

13,600

13,600

*13,200

11,800

11,000

10,000

8,740

7,970

10,300

12 , 100

10,000

8,380

6,890

6,450

6,760

6,600

578,990

18,680

6.92

7.98

5,710

5,080

4,200

3,560

3,170

3,050

2,750

2,990

5,950

3,950

5,460

5,170

3,160

2,960

2,830

2,680

2,490

2,730

a3,210

a5,120

a5 , 140

a2,940

a2,680

1,420

1,280

_- -- -

119,200

3,973

1.47

1.64

July

1,150

1,020

939

673

917

1,030

864

735

650

540

454

426

576

550

567

475

1.C70

2,450

5,290

2,800

2,560

2, COO

1,750

1,690

5,C30

3,080

2,270

1,690

1,320

1,120

£39

42,223

1,362

O.E04

0.58

Aug.

798

682

662

662

620

530

780

4,920

10,600

7 , 400

4,720

3,160

2,480

2,070

2,010

3,170

5,030

4,370

3,460

2,800

2,370

1,950

1,680

1,940

2,460

1,980

1,550

1,240

1,050

906

808

78,658

2,544

0.942

1.09

Sept.

798

724

640

590

520

492

444

401

392

384

584

482

950

974

895

884

864

808

917

1,150

2,510

5,080

2,890

2,110

1,650

1,400

1,220

*1,110

1,030

962

31,653

1,055

0.391

0.44

Calendar year 1954: Max 55,700 Min 410 Mean 6,766 Cfsm 2.51 In. 34.01

Water year 1954-55: Max 42,300 Min 350 Mean 5,574 Cfsm 2.06 In. 28.04

Peak discharge (base. 27.000 cfs).--Apr. 21 (2:30 a.m.) 40,900 cfs (12.73 ft); V«y 5 (6 to 9 p.m.) 

42,700 cfs (12.98 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations at Fort Kent and 

Ninemile Bridge.

Note.--Stage-discharge relation affected by ice Dec. 17 to Apr. 16 (no gage-heifht record Dec. 22 

to Feb. 20 and Mar. 5-23; discharge estimated on basis of 5 discharge measurements, weather records, 

and records for stations on nearby streams).
ST. JOHH RIVER BASIN 15

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 

Chamberlain Lake through Telos Canal).

Records available. July 1910 to November 1911, September 1931 to September 1955.

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

1929. July 1910 to November 1911 staff gage at site 3 miles downstream at different 

datum.

Average discharge. 24 years (1931-55), 1,946 cfs.

Extremes.--Maximum discharge during year, 15,900 cfs May 5 (gage height, 9.40 ft); maximum 

gage height, 10.58 ft Apr. 17 (backwater from ice); minimum discharge, 274 cfs Sept. 10 

(gage height, 2.05 ft).

1910-11, 1931-55: 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 daily discharge, 

91 cfs Mar. 9-15, 1948.

Remarks. Records good except those for periods of ice effect and no gage-heiglrt record, 

which are fair. Some storage in lakes above station.

Revisions (water years).--WSP 726: Drainage area. WSP 1231: 1911.

Rablng table, water year 1954-59, e 

height, In feet, and discharge

ept period of Ice effect ( 

In cubic feet per second)

2.6 

2.8

250

480

631

800

1,100

1,590

4.0 

5.0 

6.0 

7.0

8.0 

10.0

2,300

4,000

6,090

8,540

11,400

18,100

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Of sm

Oct.

3,980

4,000

3,870

4,100

4,750

4,570

4,210

3,850

3,580

3,340

3,310

4,940

5,190

5,170

4,830

4,650

4,610

4,430

4,150

3,890

3,650

3,430

3,290

3,080

2,880

2,720

2,630

2,610

2,510

2,440

2,400

117,060

3,776

3.02

3.48

Nov.

2,400

2,330

2,220

2,670

3,050

2,980

2,850

2,710

2,590

2,420

2,340

2,240

2,080

2,030

1,930

1,870

1,820

1,750

1,710

1,720

1,790

2,420

4.060

4,000

3,520

3,200

2,910

2,660

2,510

2,390

75,170

2,506

2.00

2.23

Dec.

2,500

,110

,020

,860

,720

,590

,470

,400

,310

,250

,190

,120

,080

,020

,010

,040

,000

,080

,210

,420

,720

,940

,080

,060

,990

,900

,850

,780

,720

,710

1,620

48,570

1,567

1.25

1.44

Jan.

1,580

,540

,500

,450

,410

,380

,340

,320

,290

,260

,220

,200

,180

,140

,110

,080

,040

,020

,000

950

930

910

890

*880

865

835

820

800

785

775

750

34,250

1,105

0.884

1.02

Feb.

695

690

680

670

665

665

650

640

630

625

615

610

600

590

590

585

585

575

575

570

*570

575

575

585

590

600

715

800

-

------

- ----- -

17,515

626

0.501

0.52

Mar.

825

845

835

820

800

785

765

755

740

720

715

695

690

680

695

715

720

730

750

765

785

800

*810

825

865

880

900

910

880

870

855

24,425

788

0.630

0.73

Apr.

845

855

865

880

920

1,060

1,210

1,410

1,720

2,150

2,770

3,360

4,100

4,900

5,650

6,770

7,630

8,150

8,410

8,620

8,730

8,460

8,760

9,920

10,400

10,200

10,200

9,750

9,690

10,700

--------

169,085

5,636

4.51

5.03

May

11,600

11,900

12 , 000

13,700

15.700

14,400

13,400

12,500

11,800

11,000

10,400

10,000

9,570

9,310

9,310

8,760

8,620

*7,990

7,760

7,640

6,990

6,470

6,200

6,130

6,200

5,630

5,000

4,550

4,210

4,020

4,150

276,910

8,933

7.15

8.24

June

5,900

3,810

5,590

5,270

5,080

2,910

2,710

2,420

2,240

2,090

1,960

1,900

2,020

2,140

2,120

1,940

1,790

1,670

1,520

1,380

1,250

1,140

1,270

1,420

1,260

1,180

1,150

1,040

950

890

--------

59,970

1,999

1.60

1.78

July

854

809

809

774

856

748

664

651

592

561

524

487

455

459

480

546

664

785

774

681

664

656

697

1,160

1,200

1,010

910

827

748

689

639

22,309

720

0.576

0.66

flug.

592

561

502

466

419

400

555

1,250

1,290

1,140

1,040

940

845

791

854

1,570

1,080

940

856

791

714

697

664

791

845

845

800

714

651

569

546

24,476

790

0.652

0.75

Sept.

551

487

426

400

577

555

557

510

294

289

299

502

890

722

689

672

659

592

569

722

1,220

1,110

900

818

740

656

592

*569

553

538

17,796

593

0.474

0.55

Calendar year 1954: Max 14,900 Min 290 Mean 3,090 cfsm 2.47 In. 33.56

Water year 1954-55: Max 15,700 Min 289 Mean 2,432 Cfsm 1.95 In. 26.39

Peak discharge (base, 5,700 cfs).--Apr. 20 (5 p.m.) 12,200 cfs (8.25 ft); May 5 (11 a.m.) 15,900 

cfs (9.40 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dee. 7 to Apr. 18 (no gage-height record Dec. 7 tc 

Jan. 25, Feb. 25 to Mar. 23j discharge estimated on basis of 5 discharge measurements, reather records, and records for nearby stations).
ST. JOHN RIVER BASIN

St. Francis River at outlet of-Glazier Lake, near Connors, New Bninswick 

(International gaging station)

Location.--Lat 47°12'25", long 68°57'25", on left bank at outlet of Glazier Lake, 4 miles 

upstream from mouth and 6.5 miles west of Connors, Madawaska County.

Drainage area. 496 sq mi.

Records available.--October 1951 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 550 ft (from International Boundary Map).

Extremes.--Maximum discharge during year, 8,770 cfs May 6 (gage height, 11.53 ft); minimum, 

102 cfs Sept. 9, 10 (gage height, 2.25 ft).

1951-55: Maximum discharge, that of May 6, 1955; minimum, 102 cfs Oct. 6, 1953, 

Sept. 9, 10, 1955; minimum gage height, 2.18 ft Oct. 6, 1953.

Remarks. Records excellent except those below 200 cfs, which are good. Lfke area above 

station has not yet been developed for storage.

Cooperation. This station is one of the international gaging stations maintained by Canada 

under agreement with the United States.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

2.2

2.3 

2.5 

3.0 

3.5 

4.0

113

166

339

556

831

5.0 

7.0 

9.0

11.0

11.5

1,540

3,340

5,540

8,080

8,730

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

E

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,400

1,790

1,980

2,030

1,980

1,860

1,730

1,600

1,460

1,360

1,280

1,400

1,720

2,350

2,670

2,740

2 540

2*310

2,070

1,870

1,700

1,550

1,410

1,310

1,200

1,120

1,050

989

908

895

J369_

51,141

1,650

3.33

3.83

Nov.

863

850

831

837

889

1,030

1,140

1,180

1,170

1,120

1,040

996

922

857

819

764

729

685

662

657

724

962

1,440

1,870

1,990

1,890

1,720

1,560

1,460

1,320

32,977

1,100

2.22

2.47

Dec.

1,250

1,160

1,090

1,020

929

863

825

776

735

729

718

679

646

610

605

621

600

591

600

636

680

724

741

735

707

673

641

636

631

605

591

23,027

743

1.50

1.73

Jan.

566

547

543

533

515

496

501

496

482

478

464

446

438

417

409

405

405

401

392

384

372

351

347

343

339

*32B

324

320

308

304

296

12,950

418

0.843

0.97

Feb.

286

282

278

275

260

257

260

251

247

240

244

264

257

243

236

233

229

229

229

226

223

229

243

250

254

257

268

275

7,025

251

0.506

0.53

Mar.

286

308

312

304

300

300

304

296

286

282

282

296

304

320

331

356

380

401

409

409

413

409

425

421

409

401

409

397

388

376

10,894

351

0.708

0.82

Apr.

372

380

388

401

413

434

478

515

551

591

636

680

747

876

1,160

1,780

2,700

3,690

4,490

5,070

5,340

5,430

5,520

5,700

6,OiO

6,460

7,040

7,200

7,070

7,050

89,172

2,972

5.99

6.69

May

7,390

7,8-10

7,980

8,020

8,340

8.750

8,220

7,310

7,100

5,720

5,130

4,720

4,380

4,110

3,860

3,660

3,460

*3,240

2,970

2,740

2,520

2,350

2,200

2,220

2,300

2,410

2,350

2,180

2,090

2,080

2,170

139,760

4,508

9.09

10.48

June

2,280

2,370

2,430

2,400

2,230

2,020

1,800

1,620

1,460

1,390

1,370

1,320

1,300

1,280

1,260

1,250

1,230

1,160

1,060

962

869

812

812

844

915

955

915

837

764

696

40,611

1,354

2.73

3.04

July

5"66 621

533

505

469

455

446

434

421

405

384

351

331

304

292

296

308

300

289

271

268

264

£64

264

260

254

251

240

229

2 IS

_2_06

10,697

345

0.696

0.80

Aug.

197

194

185

172

163

158

197

260

264 feo

260

257

240

229

238

236

233

226

219

210

EDO

EDO

200

197

188

172

166

160

150

142

159

6,310

204

0.411

0.47

Sept.

139

136

134

126

118

116

110

108

107

102

104

118

136

136

144

158

158

163

166

197

27B

469

712

825

825

758

668

610

*SS6

496

8,873

296

0.597

0.67

Calendar year 1954: Max 8,070 Min 139 Mean 1,237 Cfsm 2.49 In. 33. B5

Water year 1954-55: Max 8,730 Min 102 Mean 1,187 Cfsm 2.39 In. 32.50

Peak discharge (base, 5,200 efs).--Hay 6 (11 a.m.) 8,770 cfs (11.53 ft). 

" Discharge measurement made on this day.
ST. JOHN RIVER BASIN 

Pish River near Port Kent, Maine

17

Locatlon.--Lat 47°14'15", long 68°34'55", on right bank 300 ft upstream from highway bridge 

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

Aroostook County.

Drainage area. 871 sq mi.

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

September 1955. Published as "at Wallagrass" 1903-8, 1911.

Gage.--Water-stage recorder. Datum of gage is 511.38 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.--31 years (1903-8, 1929-55), 1,372 cfs.

Extremes. Maximum discharge during year, 10,900 cfs May 5 (gage height, 10.25 ft); minimum, 163 cfs Sept. 10 (gage height, 2.56 ft).

1903-8, 1911, 1929-55: Maximum discharge, 11,000 cfs Apr. 26, 1934, May 8, 1947; 

' maximum gage height, 10.50 ft Apr. 26, 1934; minimum discharge, 46 cfs Oct. 9, 10, 1950.

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

lake area above station has not yet been developed for storage.

Revisions.--WSP 1001: Drainage area.

Rating tables, water year 1954-55, except period of ice effect (gage 

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

Oct. 1 to May 4 May 5 to Sept. 3O

3.4 

4.0 

5.0 

6.0 

8.0 

10.0

-565 

990 

2,000 

3,420 

6,660 

1O,400

2.5 

2.7 

3.0 

3.5 

4.0

145

209

332

604

980

5.0 

6.0

2,000

3,420

6,660

11,000

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

1,880

1,880

1,880

1,900

1,940

1,920

1,840

1,820

1,770

1.720

1,760

2,170

2,390

2,510

2,600

2,670

2,820

2,840

2,830

2,790

2,700

2,620

2,520

2,390

2,300

2,220

2,140

2,050

1,990

l'890

68,670

2,215

2.54

2.93

Nov.

1,840

1,830

1,760

1,940

2,040

2,090

2,120

2,130

2,120

2,O90

2,040

1,990

1,920

1,870

1,760

1,690

1,630

1,570

1,530

1,520

1,580

1,940

2,140

2,260

2,350

2.560

2,360

2,290

2,270 

2,200

59,230

1,974

2.27

2.53

Dec.

2.120

2,010

1,940

1,840

1,750

1,670

1,630

1,540

1,480

1,420

1,360

1,300

1,240

1,220

1,190

1,170

1.150

1,170

1,190

1,230

1,320

1,420

1,540

1,520

1,500

1,480

1,470

1,450

1,430 

1,420

1,400

45,570

1,470

1.69

1.95

Jan.

,570

,340

,320

,300

,260

,240

,220

,210

,180

,160

,140

,120

,100

,080

,060

,040

,010

990

975

955

940

915

895

880

865

*880

840

820

785

755 

740

32,385

1,045

1.20

1.38

Feb.

700

680

675

670

665

655

655

650

650

645

640

640

630

625

620

62O

615

615

605

605

605

*600

605

615

615

620

640

665

-

.......

17,825

637

0.731

0.76

Mar.

680

690

700

695

690

670

660

650

630

605

600

595

 590 590

595

6OO

605

620

640

665

680

*720

740

760

785

805

T85

760

740 

73O

720

20,995

677

0.777

0.90

Apr.

710

695

720

740

770

849

897

930

964

1,010

1,090

1,140

1,270

1,480

1,920

2,760

3,630

4,460

5,280

5,660

6,010

6,350

6,750

7,190

7,810

8,300

8,670

8,650

8,840

_ .._'__._

114,775

3,826

4.39

4.90

May

9,540

9,780

* 10, 000

10,300

10,900

10,700

10,300

9,820

9,510

9,100

8,820

8,470

8,120

7,790

7,420

7,070

S,68O

6,300

5,950

5,630

5,340

5,070

4,810

4,680

4,540

4,360

4,200

4,030

3,880

3,720 

5.530

220,360

7,108

8.16

9.41

June

5.560

3,280

3,150

2,980

2,830

2,670

2,510

2,350

2,210

2,080

1,950

1,830

1,830

1,770

1,680

1,620

1,540

1,460

1,360

1,300

1,240

1,180

1,160

1,100

1,020

980

921

872

817 

780

53,830

1,794

2.06

2.30

July

735

678

664

617

604

572

541

524

489

472

419

389

374

356

360

379

414

394

360

337

332

328

328

328

319

297

288

284

268

255 

251

12,956

418

0.480

0.55

Aug.

243

236

232

220

213

2O6

288

351

314

288

276

251

243

243

268

351

351

346

414

429

442

445

489

46T

429

409

374

337

314 

301

301

10,068

325

0.373

0.43

Sept.

284

255

243

236

220

209

199

175

169

166

172

251

232

206

199

182

178

178

182

259

323

268

251

255

251

232

228

*236

232 

228

6,699

223

0.256

0.29

Calendar year 1954: Max 9,3OO Min 355 Mean 2,322 Cfsm 2.67 In. 36.21

Water year 1954-55: Max 10,900 Min 166 Mean 1,817 Cfsm 2.O9 In. 28.33

Peak discharge (base, 5,700 cfs). May 5 (1 to 3 p.m.) 10.9OO cfs (10.25 ft).

* Discharge measurement made on this day.

Hote. Stage-discharge relation affected by ice Dec. 8 to Apr. 5 (no gage-height record Jan. 29 to 

Feb. 22; discharge estimated on basis of 2 discharge measurements, weather records, and records of 

flow at nearby stations).
18 ST. JOHN RIVER BASIN

St. John River below Pish River, at Port Kent, Maine 

(International gaging station)

Location. Lat 47°15'25", long 68°35'35", on right bank at Port Kent, Aroostook County, 

a quarter of a mile downstream from Pish River.

Drainage area.--5.690 sq mi, approximately (not including about 240 sq mi drained by 

Chamberlain Lake through Telos Canal).

Records available.--October 1926 to September 1955.

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 datam.

Average discharge. 29 years, 9,668 cfs .

Extremes. Maximum discharge during year, 85,100 cfs May 5, (gage height, 20.68 ft); maximum gage height, 21.72 ft Apr. 17 (backwater from ice); minimum discharge, 1,120 cfs 

Sept. 10, 11 (gage height, 1.30 ft).

1926-55: 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 period of ice effect, which are fair.

Cooperation.--This station is one of the international gaging stations maintained by the 

United States under agreement with Canada.

Rating table, wate 

height, In fe

1.3

1.5 

2.0 

3.0 

4.0 

5.0 

6.5

- year 1954-55, except period of Ice effect (gage 

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

1,120

1,270

1,710

2,800

4,300

6,200

9,640

8.0

9.5

11.0

13.0

15.0

18.0

21.0

14,200

19,700

25,900

35,400

46,100

65,200

87,500

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

17,200 

23,900

23,900

22,100

22 , 800

23,600

21,200

18,300

15,800

13,700

12,800

17,40O

28,400

51,100

29,400

25,700

22,600

20,300

18,100

16,300

14,900

13 , 500

12,500

11,600

10,900

10,100

9,590

9,560

9,360

9,850

9.690

545,950

17,610

3.09

3.56

Nov.

9,430 

9,180

8,860

9,430

10,900

12,700

13,300

12,600

11,600

10,700

9,820

9,260

8,690

8,220

7,600

7,200

6,980

7,090

6,940

7,010

8,540

16,500

25,500

23,500

19,400

16,400

13,900

12,300

11,300

10,700

345,550

11,520

2.02

2.25

Dec.

9,670 

9,030

8,280

7,620

6,450

5,600

5,680

5,640

5,900

6,220

5,960

5,920

5,350

5,330

5,640

6,200

6,120

5,920

6,810

7,920

8,620

8,310

8 , 100

7,800

7,310

7,120

7,010

6,900

6,600

6,410

6,100

211,540

6,824

1.20

1.38

Jan.

6,OOO 

5,800

5,700

5,700

5,500

5,300

5,200

5,010

4,950

4,900

4,800

4,7OO

4,610

4,610

4,410

4,300

4,100

4,000

3,950

3,910

3,810

3,750

3,600

3,500

3,400

*3,280

3,200

3,200

3,190

3,100

3,000

134,480

4,338

0.762

0.88

Feb.

5,000 

3,000

2,980

2,980

2,940

2,930

2,920

2,900

2,860

2,830

2,810

2,780

2,700

2,620

2,600

2,550

2,520

2,500

2,480

2,400

2,400

*2,580

2,420

2,540

2,640

2,740

2,800

2,830

-

_____

76,050

2,716

0.477

0.50

Mar.

5,000 

3,020

3,090

3,100

3,100

3,070

3,060

3,020

3,000

3,000

3,020

3,1OO

3,200

3,400

3,600

3,810

4,050

4,250

4,390

4,520

4,500

4,440

4,300

*4,250

4,050

3,950

3,860

3,860

3,740

3,700

3,600

112,050

3,615

0.635

0.73

Apr.

3,600 

3,560

3,520

3,500

3,500

3,620

3,780

3,920

4,130

4,48O

4,840

5,180

5,450

5,800

6.62O

11,000

34,400

52,200

59,700

62,300

64,200

61,900

61,400

63,800

67,200

67,500

67,400

64,300

60,900

64,000

927,700

30,920

5.43

6.06

May

70,300 

73,200

*72,400

75,70O

85,900

82,800

73,900

65,200

59,400

54,100

48,600

44,500

41,200

38,800

37,800

35,900

34,400

33,500

30,600

28,800

26,800

24,400

22,400

23,700

26,800

24,300

21,400

19,000

17,900

17,500

17,400

*1,326.6

42,790

7.52

8.67

June

16,700 

18 , 100

19,800

18 , 400

16,200

14,300

12,900

11,300

10,100

9.08O

8,380

7,710

7,890

9,080

9,180

8,640

7,890

7,160

6,520

5,940

5,410

5,050

5,280

6,370

6,200

6,280

5,880

5,240

4,680

4,250

279,910

9,330

1.64

1.83

July

3,940 

3,640

3,470

3,280

3,240

3,290

3,170

2,890

2,670

2,410

2,200

2,O30

1,890

1,790

1,770

1,910

2,330

3,170

4,770

4,730

4,320

4,020

3,500

3,520

4,320

5,260

4,500

3,700

3,130

2,740

2,440

100,040

3,227

0.567

0.65

Aug.

2,280 

2,040

1,830

1,750

1,680

1,580

1,840

4,240

11,100

10,7OO

7,570

5,560

4,480

3,830

3,620

4,860

6,640

6,750

5,620

4,860

4,200

3,730

3,410

3,200

3,870

4,020

3,580

3,070

2,580

2,250

2,090

128,830

4,156

0.730

0.84

Sept.

2,000 

1,900

1,750

1,620

1,520

1,420

1,330

1,240

1,180

1,150

1,130

1,47O

1,950

2,420

2,210

2,120

2,100

2,000

2,020

2,580

3,980

5,160

5,410

4,730

4,080

3,580

3,140

2,860

*2,700

2,510

73,240

2,441

0.429

0.48

Calendar year 1954: Max 95,3OO Mln 1,60O Mean 14,270 Cfsm 2.51 In. 34.04

Water year 1954-55: Max 83,900 Mln 1,130 Mean 11,680 Cfsm 2.05 In. 27.83

Peak discharge (base, 45,000 cfs).--May 5 (7:30 p.m.) 85,100 cfs (20.68 ft).

* Discharge measurement made on this day.

* Expressed In thousands.

Note.--Stage-discharge relation affected by Ice Dec. 21 to Apr. 17 (no gage-height 

o Feb. 9).
ST. JOHN RIVER BASIN 

Machias River near Ashland, Maine

19

Location. Lat 46°37'40", long 68°26'05", on right bank just upstream from highway bridge, 

0.8 mile upstream from mouth and ij miles west of Ashland, Aroostook County.

Drainage area. 328 sq. mi.

Records available. June 1951 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 535 ft (from topographic map).

Extremes. Maximum discharge during year, 5,710 cfs May 5 (gage height, 6.03 ft); maximum 

gage height, 9.97 ft Apr. 17 (backwater from ice); minimum discharge, 19 cfs Sept. 18, 

19 (gage height, 0.38 ft).

1951-55: Maximum discharge, 16,600 cfs June 29, 1954 (gage height, 11.94 ft), from 

rating curve extended above 6,100 cfs by logarithmic plotting; minimum, 5.4 cfs Sept.17, 

1952 (gage height, 0.64 ft); minimum gage height, that of Sept. 18, 19, 1955.

Remarks. Records excellent-except those for periods of ice effect or no gage-height record, which are fair. Flow partly regulated by Machias and Rowe Lakes (combined capacity, about 280,000,000 cu ft) used for log driving.

Rating tables, water year 1954-55, except period of loe effect (gage 

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

Oct. 1 to Apr. 18 Apr. 19 to Sept. 30

1.0 

1.3 

1.6

105

220

371

622

1,440

2,480

3,720

0.3 

.4

1.0 

1.3 

1.6

11

21

34

71

157

280

436

2.0 

2.5 

3.0 

4.0 

5.0 

6.0

685

1,070

1,540

2,670

4,060

5,660

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

679

790

836

950

1,030

1,010

934

813

752

672

723

1,020

1,500

1,800 

1,690"

1,500

1,350

1,200

1,100

1,020

930

860

800

760

720

680

650

620

680

760 

860

29,689

958

-

-

Nov.

940

980

940

1,200

1,400

1,350

1,250

1,060

900

770

670

560

480

420 

370

340

339

*339

339

400

602

868

950

*934

901

836

745

730

672

629

22,914

764

-

-

Dec.

522

508

471

400

394

382

370

345

320

310

300

290

285

305 

370

400

360

355

370

415

490

535

570

550

520

500

470

450

430

410 

390

12,787

412

-

-

Jan.

365

350

335

315

310

315

310

300

280

265

250

245

235

225 

215

205

200

190

186

174

170

166

162

156

150

148

*140

138

136

132 

130

6,898

223

-

-

Feb.

130

126

122

122

120

116

116

112

112

108

116

170

270

260 

250

240

230

220

210

205

200

190

*186

190

200

215

230

250

_

------

5,016

179

-

-

Mar.

265

280

290

285

280

275

270

260

255

250

£45

240

245

250 

255

250

255

260

275

500

300

*285

290

285

280

275

275

270

270

265 

265

8,345

269

-

-

Apr.

260

£75

300

330

350

380

445

490

490

495

530

590

695

805 

1,010

1,260

2,480

3,490

3,730

3,190

3,790

2,890

2,840

3,720

5,820

3,800

3,800

3,540

3,320

3,550

56,665

1,889

-

-

May

4,020

4,280

*4,190

4,430

5,370

5,120

4,220

3,150

2,890

2,230

2,630

1,980

1,800

2,250 

2,040

1,900

1,990

*1,770

1,490

1,210

1,240

1,050

660

850

1,200

1,080

945

540

565

830 

785

68,705

2,216

-

-

June

860

969

822

706

720

666

505

340

480

490

465

380

330

290 

243

300

410

395

275

271

350

320

205

230

85

85

305

85

*76

78

11,736

391

-

-

July

81

106

445 226"

234

440

107

420

148

93

90

90

138

350 

90

101

112

104

90

83

53

42

122

2£0

63

48

44

45

40

280

200

4,705

152

-

-

Aug.

230

265

330

290

295

33

42

71

56

285

270

-54 335

40 

39

39

39

39

40

39

39

42

56

60

54

76

134

124

118

115

115

3,764

121

-

-

Sept.

110

107

104

101

98

95

93

90

88

85

83

83

164

131

65

56

48

24

20

ZB

39

40

40

39

36

36

34

34

34

*34

2,039

68.0

-

-

Calendar year 1954: Max 13,200 Mln 48 Mean 933 Cfsm 2.84 In. 38.58

Water year 1954-55; Max 5,370 Mln 20 Mean 639 Cfsm 1.95 In. 26.46

Peak discharge (base, 5,200 cfs). May 5 (11 a.m.) 5,710 cfs (6.03 ft).

* Discharge measurement made on this day.

Note. Ho gage-height record Oct. 12 to Nov. 16; discharge estimated on basis of recorded range In 

stage, weather records, and records for nearby stations. Stage-discharge relation affected by Ice 

Dec. 7 to Apr. 18.
20 ST. JOHN RIVER BASIN

Aroostook River at Washburn, Maine

Location. Lat 46°46'35", long 66°09'30", on right bank just upstream from Bangor and 

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

railroad station at Washburn, Aroostook County.

Drainage area.--1,620 sq mi, approximately. 

Records available. August 1930 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 436.40 ft above mean sea level, datum of 

1929. Prior to Oct. 1, 1948, at datum 2.0 ft higher.

Average discharge.--25 years, 2,605 cfs (unadjusted).

Extremes. Maximum discharge during year, 20,200 cfs May 6 (gage height, 9.43 ft); maximum gage height, 13.40 ft Dec. 22"tbackwater from ice); minimum discharge, 296 cfs 

July 27 (gage height, 1.86 ft).

1930-55: Maximum discharge, 37,800 cfs Mar. 22, 1936 (gage height, 11.80 ft); 

maximum gage height, 15.78 ft Apr. 6, 1951 (backwater from ice); 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, and 

Machias and Rowe Lakes (combined capacity, about 240,000,000 cu ft), used for logdriving.

Revisions (water years). WSF 951: 1935. WSP 1301: 1933-50 (adjusted monthly runoff).

Rating table, water year 1954-55, except period of Ice effect (gage 

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

1.8 

2.0 

2.5 

3.0

260

390

820

1,440

3,130

5.0

6.0

8.0

10. C

5,300

7,990

14,500

23,000

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

3,610

3,850

3,970

4,550

5,280

5,250

4,790

4,080

3,530

3,300

3,170

5,660

8,020

9,880

9,580

8,430

7,830

7,720

7,320

6,610

5,640

4,810

4,140

3,670

3,340

2,830

2 , 740

3,020

3 , 110 

3,210

3,650

156,590

5,051

+3.0

Nov.

4,140

4,360

4,140

6,360

8,210

8,260

6,960

6,020

5,030

4,460

3,690

3,420

3,070

2,720

2,510

2,160

2,380

2,090

1,900

2,040

3,260

5,580

6,070

5,050

4,250

3,790

3,300

2,960

2,850 

2,630

123,660

4,122

-1.9

Dec.

2,480

2,160

1,870

1,950

1,800

1,460

1,440

1,430

1,500

1,590

1,440

1,310

1,270

1,220

1,300

1,440

1,660

2,070

2,580

3,470

3,450

3,320

3,170

3,040

2,940

2,810

2,690

2,580

2,500 

2,410

2,310

66,660

2,150

-20

Jan.

2,200

2,140

2,070

1,980

1,900

1,850

1,790

1,740

1,710

1,680

1,620

1,590

1,580

1,540

1,500

1,470

1,440

1,430

1,410

1,380

1,340

1,310

1,300

1,290

1,270

1,240

*1,200

1,170

1,140 

1,100

1,060

47,460

1,531

-184

Feb.

1,050

1,050

1,040

1,020

990

980

970

945

920

920

955

1,120

1,410

2,070

2,380

2,440

2,410

2,380

2,310

2,270

2,210

2,140

*2,140

2,240

2,410

2,480

2,500

2 '-460

48,210

1,722

-160

Mar.

2,380

2,320

2,240

2,160

2,100

2,050

1,970

1,930

1,880

1,870

1,850

1,880

1,930

1,930

1,900

1,870

1,930

2,120

2,290

2,410

2,510

*2,550

2,480

2,430

2,380

2,310

2,240

2,170

2,120 

2 , 100

2,050

66,350

2,140

-652

Apr.

2,000

1,980

1,930

1,900

1,900

2,000

2,210

2,580

3,040

3,610

4,250

4,810

5,460

6,450

7,500

9,020

10,100

11,200

11,300

11,400

11,200

11,200

12,000

13,200

13,500

13,400

13,200

13 , 000

13,000 

14,500

232,540

7,751

+502

May

15,200

16,300

16,600

16,800

19,200

19,900

17 , 700

14,100

12 , 700

11,700

10 , 800

9,640

8,740

8,650

8,820

8,430

*8,210

7,610

6,750

5,800

5,280

4,760

3,930

3,710

4,520

5,460

5,330

4,040

5,150 

3,750

4,080

291,660

9,408

+372

June

4,040

4,640

4,300

3,630

3,420

2,960

2,690

1,920

1,800

1,560

1,820

1,290

1,710

2,210

2,220

1,840

1,560

1,310

1,110

870

780

810

780

693

693

760

780

830

585 

576

54,187

1,806

+37

July

549

621

910

720

549

549

860

603

820

404

341

314

411

530

460

418

439

432

770

800

720

657

594

720

425

320

383

630

684 

621

603

17,857

576

-75

Aug.

439

425

453

439

418

411

314

355

341

425

525

480

540

327

320

348

327

341

549

516

418

369

383

383

390

369

362

362

334 

308

308

12,279

396

-17

Sept.

308

308

308

301

376

439

439

425

418

418

411

418

418

540

453

432

432

404

397

500

657 576"

500

439

411

376

383

369

355

*341

12,552

418

-254

Adjusted for change In contents in Millinocket and Squapan Lake

Mean 

Cfsm 

In.

5,054 

3.12 

3.60

4,12C 

2.54 

2.83

Calendar year 1954: 

Water year 1954-55:

2,130 

1.31 

1.51

1,347 

0.831 

0.96

1,562 

0.964 

1.00

1,488 

0.919 

1.06

8,253 

5.09

5.68

9,780 

6.04 

6.96

Observed

Max 28,900 Min 720 Mean 4,548 

Max 19,900 Mln 301 Mean 3,096

1,843 

1.14 

1.27

501 

0.309 

0.36

379

0.234 

0.27

164 

0.101 

0.11

Adjusted

Mean 4,550 CfEm 2.81 In. 38.10 

Mean 3,058 Cfsm 1.89 In. 25.61

Peak discharge (base, 15,000 efs). May 6 (1 a.m.) 20,200 efs (9.43 ft). 

* Discharge measurement made on this day. 

t Change in contents, equivalent in cubic feet per second, in Millinocket and Squapan Lakes. 

Note.--Stage-discharge relation affected by Ice Dec. 7 to Apr. 17. No gage-height record Dec. 22 

to Jan. 0-7 27, TS_I. Feb. ic 15-22, oo - _v. Feb. o/- 26 <-_ . _ 2; discharge estimated on basis of records for nearby streams

and downstream power station record
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 2 miles upstream from Houlton, Aroostook County.

Drainage area. 175 sq mi.

Records available.--October 1940 to September 1955. October 1940 monthly discharge only, 

published in W3P 1301.

Gage. Water-stage recorder. Datum of gage is 333.92 ft above mean sea level, d^tum of 

1929.

Average discharge.--15 years, 286 cfs.

Extremes. Maximum discharge during year, 3,860 cfs Apr. 16 (gage height, 7.40 ft); minimum, 15 cfs Sept. 10, 11 (gage height, 2.32 ft).

1940-55: Maximum discharge, 6,590 cfs Sept. 12, 1954 (gage height, 9.28 ft); maximum gage height. 10.83 ft Mar. 27, 1953 (backwater from ice); minimum discharge, 3.6 cfs 

Sept. 19, 1946 (gage height, 2.09 ft).

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

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

Rating table, water year 1954-55, except period of ice effect (gage 

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

2.3

2.4

2.5 

2.7 

3.0 

3.5

160

360

4.0 

5.0 

6.0 

7.0 

8.0

620

1,300

2,210

5,320

4,700

Discharge, in cubic feet per second, water year October 1954 to September 1955

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.

E68

304

380

610

764

662

520

405

336

308

340

640

1,140

1,220

874

758 

752

764

680

572

495

465

470

425

365

332

352

465

455

644 

930

17,695

571

3.26

3.76

Nov.

930

909

874

1,160

1,100

867

698

608

545

485

430

400

356

332

304

280 

276

272

*268 "3§0

540

698

638

*520

435

375

332

308

300

15,860

529

3.02

3.37

Dec.

288

272

255

240

225

210

200

184

166

160

142

136

132

136

148

160 

176

200

245

300

390

520

460

430

385

355

340

315

300

280 

265

8,017

259

1.48

1.71

Jan.

250

240

230

220

215

230

220

205

184

180

176

*172

164

148

130

116 

102

90

75

69

58

54

51

42

37

34

29

26

23

21 

20

3,811

123

0.703

0.81

Feb.

19

19

19

19

20

21

23

26

31

39

54

80

130

280

*530

560 

535

465

360

280

240

200

176

160

100

75

64

58

-

4,583

164

0.937

0.98

Mar.

54

51

47

54

64

62

64

75

88

95

88

90

106

136

160

176 

200

215

240

280

295

300

310

315

*305

295

285

270

260

250 

240

5,470

176

1.01

1.16

Apr.

230

215

220

225

230

245

280

315

365

450

560

720

1,000

1,940

3,180

5,800 

3,140

2,650

2,670

2,420

2,170

1,920

1,710

1,630

1,560

1,400

1,420

1,430

1,360

1,340

40,795

1,360

7.77

8.67

May

1.280

1,170

1,070

1,030

1,090

993

836

728

686

620

535

475

425

390

400

375 

365

332

*385

276

244

216

188

176

172

232

264

232

208

470 

590

16,453

531

3.03

3.49

June

602

530

440

344

300

260

212

176

148

136

133

139

208

252

220

172 

142

112

100

85

75

73

69

80

73

64

60

60

58

51

5,375

179

1.02

1.14

July

49

44

42

42

39

34

31

29

26

24

21

19

18

18

19

26 

42

85

88

71

54

46

44

52

52

46

40

49

51

42 

36

1,279

41.3

0.236

0.27

Aug.

31

29

23

20

17

IS

19

46

52

42

29

47

40

36

42

40

60

60

51

44

37

42

109

139

115

85

67

54

46 

40

36

1,514

48.8

0.279

0.32

Sept.

33

30

29

27

22

20

19

17

16

JL5

15

18

20

21

20

20 

20

20

19

21

24

22

21

20

19

17

*17

17

18

17

614

20.5

0.117

0.13

Calendar year 1954: Max 5,570 Min 49 Mean 513 Cfsm 2.93. In. 39.80

Water year 1954-55: Max 3,800 Min 15 Mean 333 Cfsm 1.90 In. 25.81

Peak discharge (base, 2,100 cfs).--Apr. 16 (4 p.m.) 3,860 cfs (7.40 ft).

* Discharge measurement made on this day.

Mote.--Stage-discharge relation affected by ice Dec. 4 to Apr. 13.
22 ST. CROIX RIVER BASIN

St. Croix River at Vanceboro, Maine

Location. Lat 45°34'10", long 67°25'45", 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 1955.

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

1929.

Average discharge. 27 years, 698 cfs.

Extremes. Maximum discharge during year, 2,350 cfs Nov. 4 (gage height, 7.43 ft); maximum gage height, 7.52 ft Dec. 22- minimum discharge, 92 cfs Aug. 9 (gage height, 

3.16 ft).

1929-55: Maximum discharge, 4,470 cfs Apr. 23, 1954 (gage height, 9.24 ft); minimum, 1.9 cfs several times during October and November 1936 (gage height, 1.91 ft), 

when flow was held back by cofferdam during repairs to dam just upstream.

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

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

Rating tables, water year 1954-55 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Dec. 21 Dec. 22 to Sept. 30

3.5 

4.0 

4.5 

5.0

149

257

401

590

5.5 825

6.0 1,130

7.0 1,920

8.0 2,980

3.1 

3.5 

4.0 

4.5 

5.0

84

145

247

377

544

5.5 780

6.0 1,090

7.0 1,850

8.0 2,800

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1,210 

1,190

1,190

750

210

208

206

345

780

910

910

910

916

910

910

922

928

922

922

922

1,130

1,190

1,180

1,190

920

815

815

825

820

810

634

26,500

855

-

-

Nov.

770 

1,080

1,720

2,240

2,520

2,300

2,280

1,650

1,200

1,190

1,190

1,200

1,190

1,190

1,190

1,180

1,540

2,080

2,090

2,030

2,020

1,200

379

690

1,140

1,140

1,150

1,150

1,150

1,150

42,799

1,427

-

-

Dec.

1,140 

1,130

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,150

1,450

2,180

 2,260

2,280

2,280

2,260

2,220

2,200

2,200

2,200

2,180

2,160

47,210

1,523

-

-

Jan.

2,110 

2,110

2,090

2,080

1,970

1,790

1,740

1,730

1,720

1,700

*1,680

1,660

1,650

1,630

1,610

1,590

1,570

1,570

1,550

1,540

1,520

1,500

1,490

1,470

1,460

1,450

1,440

1,430

1,400

1,400

1,590

51,040

1,646

-

-

Feb.

1,380 

1,360

1,340

1,340

1,320

1,310

1,300

1,290

1,270

1,250

1,240

1,260

1,250

1,250

1,240

1,220

1,220

1,250

1,250

1,250

1,240

1,220

1,220

1,230

1,240

1,240

1,240

1,240

^

----_..

-------

35,460

1,266

-

-

Mar.

1,240 

1,240

1,240

1,240

1,230

1,250

1,590

1.730

1,700

1,700

1,690

1,650

1,630

1,630

1,610

1,610

1,680

1,660

1,650

1,620

1,610

1,410

1.150

1,130

1,150

1,140

1,140

1,330

1,630

1,610

1,590

45,420

1,465

-

-

Apr.

1,580 

1,570

1,570

1,550

1,530

1,550

855

125

T25

126

128

130

136

158

145

149

154

158

165

920

1,870

1,890

1,910

1,960

1,970

1,970

1,970

2,000

2,010

2,010

52,320

1,077

-

"

May

2,020 

1,210

312

314

319

685

1,650

1,410

1,170

*1,170

1,170

1,460

1,280

1,080

1,060

885

828

828

560

430

450

430

600

852

852

852

852

852

852

846

846

28,105

907

-

"

June

846 

846

846

555

380

670

846

846

846

1,050

1.150

1,130

960

920

930

924

924

924

918

912

906

906

906

906

906

906

900

894

894

894

26,441

881

-

"

July

888 

888

888

882

876

870

864

858

852

852

846

840

840

795

810

810

810

912

948

948

942

942

805

585

918

1,150

1,510

1,400

1,610

1,570

1,550

50,059

970

-

"

Aug.

1,520 

1,500

1,480

1,480

1,480

1,450

1,450

1,430

1,270

1,580

1,350

1,180

680

1,110

1,310

1,270

1,250

1,240

1,220

1,200

1,170

1,160

1,150

1,130

1,110

1,090

1,080

1,080

1,040

1,010

996

38,246

1,254

-

Sept.

990 

972

960

942

930

918

906

882

852

834

822

822

810

780

770

760

750

735

720

715

720

700

680

665

670

655

635

621

617

604

23,437

781

-

-

Calendar year 1954: Max 4,350 Hin 87 Mean 1,056 Cfsm - In.

Water year 1954-55: Max 2,320 Hin 125 Mean 1,170 Cfsm - In. -

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

Grand Lake Stream at Grand Lake Stream, Maine

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

of 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 1955.

Gage.--Water-stage recorder. Datum of gage is 273.96 ft above mean sea level, datum of 

1929.

Average discharge. 27 years, 354 cfs.

Extremes. Maximum discharge during year, 2,030 cfs May 19 (gage height, 5.34 f";); minimum, 83 cfs Aug. 13-20, 24 (gage height, 1.60 ft).

1928-55: Maximum discharge, 2,840 cfs June 12, 1952 (gage height, 6.35 f':); minimum daily, 5 cfs Dec. 3-6, 11, 1945.

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

fair. Plow regulated by Grand and other lakes (combined usable capacity, about 

8,250,000,000 cu ft).

Revisions.--WSP 971: Drainage area.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

1.6

1.7 

1.9 

2.2 

2.5

141

225

326

3.0 

3.5 

4.0 

5.0

541

790

1,080

1,760

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

373

373

381

393

397

389

381

373

369

373

373

377

377

377

373

635

1,390

1,560

984

978

972

954

825

385

373

393

475

430

395

280

261

16,969

547

-

-

Nov.

258

260

600

"930 940

925

920

910

900

890

620

345

345

345

345

345

345

345

640

900

650

290

290

290

295

295

295

300

300

300

15,413

514

-

-

Dec.

"600 300

900

900

900

900

906

900

889

906

912

894

878

867

878

894

884

862

912

1,010

1,370

1,580

1,350

1,340

1,330

1,310

1,300

1,290

1,310

1,300

1,30.0

31,672

1,022

-

-

Jan.

1,290

1,280

1,090

823

823

823

823

823

823

818

*812

812

806

801

790

785

780

780

770

1,120

1,470

1,450

1,420

1,400

1,380

1,360

1,330

1,310

1,300

1,280

1,260

32,632

1,053

-

-

Feb.

1.240

1,220

1,200

1,180

1,150

1,130

1,130

1,100

1,100

1,090

1,070

1,090

1,070

1,070

1,070

1,060

1,060

720

294

294

294

294

302

302

302

302

302

302

_

..___.

22,738

812

-

-

Mar.

305

308

725

1,210

1,200

1,190

1,180

1,170

1,150

1,130

1,130

1,120

1,100

1,100

1,070

1,070

1,070

1,060

515

125

670

1,040

590

302

319

319

322

322

520

875

1,010

25,217

813

-

-

Apr.

1,010

996

990

990

984

978

715

271

268

265

265

265

265

265

268

271

271

271

271

278

278

278

278

278

284

284

288

291

291

291

12 , 998

433

-

-

May

291

294

294

270

201

201

201

201

201

*201

204

204

204

201

201

895

665

870

1.5BO

985

620

420

210

630

640

655

645

545

116

T20

520

13,285

429

-

-

June

635

635

630

315

123

120

120

120

120

120

118 Tie

395

605

605

605

600

600

495

635

1,170

1,420

1,110

918

906

906

450

170

167

167

15,098

503

-

-

July

170

173

173

173

173

545

828

818

806

801

796

570

590

580

570

570

575

300

149

144

144

144

144

144

360

570

570

570

570

570

566

13,856

447

-

-

Aug.

566

561

600

550

700

620

561

566

556

546

520

340

85

83

83

83

83

83

83

83

85

85

85

83

250

451

451

446

432

600

960

11,280

364

-

Sept.

942

924

912

894

878

862

845

828

812

790

780

780

775

750

735

735

720

710

695

700

705

685

665

650

645

635

620

605

600

590

22,467

749

-

-

Calendar year 1954: Max 2,110 Min 162 Mean 519 Cfsm - In. -

Water year 1954-55: Max 1,560 Min 83 Mean 640 Cfsm - In. -

* Discharge measurement made on this day.

Note. No gage-height record Nov. 2 to Dec. 5, July 21-29; discharge estimated on basis of gage 

openings at dam upstream and weekly gage-height readings.
ST. CROIX RIVER BASIN

St. Croix River near Baileyville, Maine

Location. Lat 45°15'55", long 67 0 28'35", in township of Baileyville, Wsshington County, 

on right bank 700 ft downstream from powerhouse of St. Croix Paper Co. at Grand Palls 

and 8 miles upstream from village of Woodland.

Drainage area. 1,320 sq mi, approximately.

Records available. November 1919 to September 1955.

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

1929.

Average discharge. 36 years, 2,216 cfs.

Extremes. Maximum discharge during year, 11,000 cfs Dec. 20 (gage heigl-t, 7.43 ft); minimum daily, 495 cfs Sept. 5.

1919-55: 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 600 cfs, which are good. Plow regulated 

by Chiputneticook Lakes, Grand and other lakes (combined usable capacity, about 

25,000,000,000 cu ft).

Revisions (water years). WSP 1231: 1922.

Rating table, water year 1954-55 (gage height, In feet, 

and discharge, In cubic feet per second)

1.2 

1.5 

2.0

470

590

800

1,040

1,570

3.0 

4.0 

6.0 

7.0

2,850

4,340

7,850

9,950

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

is

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsra

In.

Oct.

2,500

2,410

2,400

2,380 

3,110

3,240

*2,600

2,3.70

2,370

2,220

2,460

2,120

2,130

2,220

2,490

3,050

4,850

5,120

5.500

4,060

2,870

2,850

3,140

2,700

3,050

2,080

2,290

2,210

_2,020

2,990

4,170

89,970

2,902

-

-

Nov.

4,840

4,670

5,290

6,930 

7,700

7,890

7,080

6,850

4,890

3,080

2,880

3,080

3,050

2,910

2,100

1,550

2,700

2,640

2,620

2,550

2,780

5,300

4,000

2,990

2,780

2,780

2,740

1,420

2,350

2,750

114,990

3,833

-

-

Dec.

3,130

3,000

2,840

2,820 

2,260

?,450

2,850

2,850

3,950

4,110

4,990

4,450

4,510

3,660

4,240

5,360

5,360

5,330

6,840

9,570

8,790

8,470

7,780

7,550

6,810

4,420

4,620

5,240

5,550

6,250

6,300

156,350

5,044

-

-

Jan.

5,990

4,790

4,980

4,740 

4,770

4,210

3,920

3,940

2,980

3,560

*3,950

3,940

3,420

2,860

2,770

2,840

3,340

3,590

3,110

3,030

2,980

2,990

3,190

3,920

3,800

3,680

3,400

3,740

3,470

2,250

3,440

113,570

3,664

-

-

Feb.

3,360

3,400

3,480

3,520 

3,540

3,400

3,730

4,340

3,980

3,480

3,470

5,150

5,040

5.190

4,930

4,720

4,800

4,770

4,800

3,940

4,520

3,950

3,660

3,830

3,950

4,060

5,290

4,060

_

______

114,360

4,084 1

-

Mar.

4,200

4,140

4,020

3,890 

3,900

3,860

3,960

4,000

4,180

4,390

4,470

4,530

4,120

4,640

5,310

5,330

5,450

5,280

5,110

4,640

4,250

3,890

3,940

4,140

3,710

3,560

2.700

3,300

3,850

4,280

4,340

131,380

4,238

-

-

Apr.

4,370

4,390

4,870

5,090 

5,090

5,470

5,920

5,760

4,990

5.750

4,070

4,180

4,080

4,560

5,360

6,760

7.270

7,040

6,460

6,730

7,040

7,110

6,960

6,750

6,980

6,980

6,600

7,000

6,950

6,660

175,220

5,841

-

-

May

4.920

5,580

2,580

2,540 

2,540

3,200

3,480

4,080

4,710

*5,410

2,580

2,610

2,950

3,460

2,680

2,520

2,500

2,530

2,500

2,270

2,520

1.140

2,370

2,530

2,070

2,540

3,040

3,540

2,160

2,940

2,550

89,040

2,872

-

-

June

2,540

2,570

2,490

2,500 

2,840

5.210

*2,570

2,590

2,610

2,460

2,450

1,240

2,480

2,580

2,630

2,480

2,460

2,530

1,350

2,060

2,540

2,580

2,030

2,700

2,590

2,340

2,920

2,550

2,410

2,610

73,910

2,464

-

-

Jily

2,590

2,570

1,060

1,050 

2,490

2,660

2,420

2,100

2,190

1,420

1,970

2,270

2,270

2,240

2,160

2,160

1,280

2,230

2,680

2,710

2,630

2,430

2,290

1,680

2,580

2,750

2,710

2,700

2,520

2,560

1,250

68,600

2,213

-

-

Aug.

2,440

2,610

2,720

2,550 

2,370

2,590

1,220

2,330

2,670

2,640

2,640

2,520

2,390

1,470

2,400

2,500

2,450

2,330

2,260

2,370

1,140

2,100

?,060

2,480

2,520

2,430

2,220

980

2,350

2,580

2,320

70,650

2,279

-

"

Sept.

2,550

2,150

2,140

1,060 

495

2,250

2,280

2,120

2,110

1,870

2,160

2,010

2,020

2,150

2,190

2,190

1,800

980

1,370

1,150

1,210

1,230

1,220

1,240

1,180

1,220

1,200

1,220

1,170

1,200

48,935

1,631

-

-

Calendar year 1954: Max 19,900 Mln 955 Mean 3,460 Cfsm - Ir 

Water year 1954-55: Max 9,570 Mln 495 Mean 3,416 Cfsm - Ir,

Discharge measurement made on this day.
MACHIAS RIVER BASIN 25

Machias River at Whltneyville, Maine

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

bridge at Whitneyville, Washington County.

Drainage area. 457 sq. mi.

Records available. October 1905 to September 1921, September 1929 to September 1955. 

Monthly discharge only for some periods, published in WSP 1301.

Gage.--Water-stage recorder. Datum of gage is 37.22 ft above mean sea level, datum of 

1929. Oct. 1, 1905, to Sept. 30, 1921, staff and chain gages on highway bridge at 

different datum.

Average discharge. 42 years (1905-21, 1929-55), 951 cfs.

Extremes.--Maximum discharge during year, 4,610 cfs Dec. 20 (gage height, 8.67 f';) ; minimum, 22 cfs Sept. 10 (gage height, 2.38 ft).

1905-21, 1929-55: Maximum discharge, 11,800 cfs Nov. 28, 1950 (gage height, 14.70 

ft, from floodmarks), from rating curve extended above 7,000 cfs by logarithmic plotting; 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, which are fair. Some 

storage in lakes above station.

Revisions (water years) .--WSP 241: 1903-4. WSP 971: Drainage area. WSP 1231: 1907-15, 

1916-21(M).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

2.4 

2.6 

2.8 

3.0 

3.3 

3.6

175

295 9.0

520

890

1,330

2,220

3,120

4,910

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota:

Mean

Cfsm

In.

Oct.

826

850

858

1,170

1,630

*1,560

1,340

1,130

1,040

988

970

1,040

1,100 

1,100

1,240

1,040

2,080

2,530

2,080

1,650

1,380

1,200

1,120

1,070

979

914

874

882

898

1, 960 

2.960

40,459

1,305

2.86

3.30

Nov.

2,620

2,180

1,940

3,050

5,500

2,900

2,260

1,820

1,590

1,400

1,250

1,170

1,100 

1,040

979

946

906

890

882

874

1,640

2,530

2,060

1,610

1,350

1,200

1,100

1,080

1,450

2,080

49,397

1,647

3.60

4.02

Dec.

2,000

1,640

1,340

1,040

970

946

842

1,010

1,190

1,540

2,460

2,260

1,840 

1,380

2,150

3,560

3,340

2,460

3,490

4.560

4,160

3,340

2,540

1,950

1,690

1,500

1,490

1,530

1,600

2,000 

2,560

64,378

2,077

4.54

5.23

Jan.

2,400

2,240

2,080

1,910

1,780

1,600

1,500

1,380

1,330

*1,290

1,260

1,230

1,200 

1,180

1,160

1,140

1,120

1,100

1,060

1,050

1,020

980

960

945

920

900

880

865

860

810

38,985

1,258

2.75

3.17

Feb.

795

770

755

745

740

730

740

795

840

920

,050

,510

,080 

* ,950

,490

,840

,510

,380

,310

,240

,220

,240

,270

,340

,600

,800

,770

,690

-------

38,120

1,361

2.98

3.10

Mar.

1,680

2,010

2,050

1,780

1,470

1,290

1,470

1,510

1,330

1,200

1,200

1,580

1,750 

1,550

1,380

1,310

1,980

2,140

1,630

1,340

1,160

1,040

1,410

2,090

2,050

1,800

2,250

2,760

2,200

1,770 

1,730

51,910

1,675

3.67

4.23

Apr.

1,920

1,920

1,760

1,700

1,720

1,960

2,060

2,220

2,010

1,780

1,800

1,890

1,780 

1,660

1,890

2,300

2,340

2,080

2,080

2,530

2,930

3,070

2,620

1,990

1,850

1,930

2,020

2,720

3,190

5.520

65,240

2,175

4.76

5.31

May

5,560

2,960

2,670

2,460

2,400

2,400

2,480

2,450

*2,400

2,550

2,210

2,530

2,620 

2,540

2,150

1,420

962

778

692

654

225

62

115

555

552

572

501

501

470 

441

446

46,446

1,498

5.28

3.78

June

435

520

508

458

452

*458

435

594

567

545

740

410

142 

425

760

515

458

455

376

340

567

477

578

648

599

552

501

429

485 

572

14,177

473

1.04

1.16

July

552

452

340

282

246

222

214

210

196

196

200

310

455 

458

470

641

954

922

738

634

572

546

566

585

559

572

572

470

515 

218

196

15,845

447

0.978

1.15

Aug.

178

165

82

58

62

95

118

142

145

145

154

562

775 

458

345

305

264

238

214

182

172

172

175

175

175

175

172

172

166 

148

142

6,329

204

0.446

0.51

Sept.

142

140

140

135

128

125

120

120

74

26

31

84

148 

148

145

138

118

115

115

125

142

145

142

135

140

135

120

132

166 

175

5,749

125

0.274

0.51

Calendar year 1954: Max 11,200 Min 250 Mean 1,467 cfsm 3.21 in. 43.54

Water year 1954-55: Max 4,560 Min 26 Mean 1,186 Cfsm 2.60 In. 35.25

Peak discharge (base, 5.200 cfs).--Nov. 5 (6 a.m.) 3,600 cfs (7.54 ft); Dec. 16 (8 p.m.) 3,700 cfs 

(7.65 ft); Dec. 20 (12 m. to 5 p.m.) 4,610 cfs (8.67 ft); Apr. 30 (9 a.m. to 1 p.m.) 3,540 cfs 

(7.48 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 24 to Feb. 27, Mar. 3, 8,115 (no gage-height 

record Dec. 31 to Jan. 10; discharge estimated on basis of weather records and records for station 

at East Machias).
MACHIAS RIVER BASIN

East Machlas River near East Machias, Maine

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

Hadley Lake and 3 miles upstream from East Machias, Washington Count/.

Drainage area.--251 sq mi.

Records available.--October 1926 to September 1955.

Gage.--Staff gage and erest-sta6e inuiuocjr; gage read once daily. Dat w of gage is 

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

higher.

Average discharge.--38 years (1927-55), 516 cfs .

Extremes.--Maximum discharge during year, 1,930 cfs Dec. 22 (gage height, 6.81 ft); minimum, 55 cfs Sept. C8 (gage height, 1.47 ft).

1926-55: Maximum discharge, 3,660 cfs Dec. 15, 1950 (gage height, 9.05 ft); minimum, 8.4 cfs Nov. 8, 1947 (gage height, 0.65 ft, present datum).

Remarks.--Records good.

Revisions (water years). WSP 971: Drainage area. WSP 1231: 1928-30.

Hating table, water year 1954-55 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1 to Jan. 15)

1.4 

1.7 

2.0 

2.5 

3.0

49

81

124

208

310

4.0 

5.0 

6.0 

7.0

595

1,010

1,500

2,100

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

600

565

545

550

575

590

*600

59O

575

565

555

550

545

535

525

560

710

795

825

850

840

830

825

815

750

680

660

625

660

715 

795

20,400

658

2.62

3.02

Nov.

900 

1,030

1,080

1,120

1,210

1,310

1,300

1,290

1,240

1,180

1,140

1,080

995

915

890

860

770

690

665

670

675

800

840

865

855

850

865

810

860

915

28,670

956

3.81

4.25

Dec.

960 

965

940

915

875

830

810

785

795

800

950

975

1,010

1,080

1,180

1,300

1,340

1,380

1,570

1,730

1,830

1,920

1,900

1,860

1,760

1,670

1,550

1,440

1,420

1,460

1,510

39,510

1,275

5.08

5.86

Jan.

1.520 

1,480

1,440

1,360

1,290

1,220

1,170

1,100

1,030

*955

890

830

775

725

680

640

605

575

550

520

500

460

445

430

420

410

405

395

385

370

350

23,925

772

3.08

3.55

Feb.

340

325

315

305

290

290

305

330

335

340

390

715

840

*995

1,020

1.040

991

963

932

896

865

840

814

883

945

982

982

991

_

------

19,259

688

2.74

2.85

Mar.

1,020 

1,040

1,050

1,020

982

954

945

922

905

874

840

874

900

892

874

865

918

*972

932

892

835

789

840

1,000

i.oio

1,030

1,150

1,250

1,260

1,250

1,240

30,325

978

3.90

4.50

Apr.

1,240 

1,220

1,210

1,200

1,190

1,180

1,190

1,210

1,220

1,210

1,200

1,170

1,150

1,150

1,150

1,160

1,180

1,180

1,180

1,200

1,210

1,220

1,210

1,200

1,200

1,190

1,180

1,220

1,270

1,350

36,040

1,201

4.78

5.33

May

1,340 

1,290

1,240

1,180

1,120

1,070

1,050

958

*936

896

857

818

770

730

680

660

630

600

575

550

510

465

445

430

400

385

370

355

350

345 

555

22 , 340

721

2.88

3.32

June

320

3l5

315

315

315

*315

305

295

290

285

275

280

285

295

310

305

300

290

285

280

270

265

255

260

265

265

260

250

245

255

8,545

285

1.14

1.27

July

230 

22a

215

210

205

200

198

194

184

172

162

152

142

134

140

156

172

166

184

198

192

184

176

172

170

166

160

156

150

142 

138

5,440

175

0.697

0.80

Aug.

130 

12^

114

108

102

96

91

90

90

96

98

90

85

93

102

110

120

126

124

124

122

120

118

112

110

110

106

102

98

96 

93

3,296

106

0.422

0.49

Sept.

91 

89

86

84

82

81

80

74

68

64

59

59

61

62

64

62

60

57

56

59

64

62

60

58

56

58

57

55

56

56

1,980

66.0

0.263

0.29

Calendar year 1954: Max 3,360 Min 122 Mean 803 Cfsm 3.20 In. 43.46

Water year 1954-55: Max 1,920 Min 55 Mean 657 Cffim 2.62 In. 35.52

Discharge measurement made on this day.
NARRAOfUAOfUS RIVER BASIN

Narraguagus River at Cherryfield, Maine

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

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 1955.

Sage. Water-stage recorder. Datum of gage is 44.2 ft above mean sea level, datum of 

1929. Prior to July 1, 1948, staff gage at same site and datum.

Average discharge.--7 years, 523 cfs.

Extremes. Maximum discharge during year not determined (probably occurred Dec. 19); minimum, 31 cfs Sept. 10 (gage height, 7.12 ft).

1948-55: Maximum discharge, 7,250 cfs Nov. 28, 1950 (gage height, 15.81 ft); minimum, that of Sept. 10, 1955.

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

Revisions (water years).--WSP 1301: 1948(M).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

7.1 29

7.3 46

7.5 69

7.7 96

8.0 149

8.5 270

Discharge, in cubic feet per

9.0

9.5

10.0

11.0

12.0

13.0

425

620

850

1,460

2,250

3,300

cond, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

332

326

323 525"

726

686

591

491

422

379

370

422

447

432

395

402

1,150

1,290

1,090

855

676

574

526

488

439

412

412

480

495

1,430 

1,380

18,966

612

2.64

3.04

Nov.

,2OO

,100

,250

,960 "T7701

1,450

1,050

892

778

*676

607

566

522

484

465

432

425

418

410

395

600

1,180

980

750

620

530

480

400

660

740

23,790

793

3.42

3.82

Dec.

65O

520

460

450

435

415

400

480

540

1,150

1,010

880

700

6OO

8OO

1,980

1.6OO

1.3OO

2,550

2,100

1,700

1,380

1,100

910

_780

680

640

640

670

720 

91O

28,950

934

4.03

4.65

Jan.

850

775

715

665

620

580

540

SOS

480

*460

445

430

425

410

400

390

375

360

350

340

330

320

310

3OO

295

280

275

265

255

2 5O 

240

13,235

427

1.84

2.12

Feb.

230

230

220

22O

215

230

270

360

460

600

780

2.120

1,910

*1,650

1,420

1,130

900

7 2O

625

580

570

580

640

740

995

955

892

940

-

.._ .

21,182

756

3.26

3.40

Mar.

994

1,310

1,180

1,080

1,050

1,010

955

825

699

595

763

1,070

900

780

710

850

1,420

1,080

907

74O

582

518

,280

,470

,280

,O60

,690

1,460

1,110

988 

1,O2O

31,376

1,012

4.36

5.03

Apr.

1,120

1,110

999

961

956

1,000

1,070

1,140

1,110

961

902

907

918

9O2

934

1,110

1,200

1,130

988

1,040

1,060

983

871

792

736

704

754

801

913

1,090

29,162

972

4.19

4.68

May

918

754

650

578

550

612

642

612

*586

538

484

436

395

386

418

412

415

379

341

323

296

270

253

242

234

237

242

232

214

211 

224

13.084

422

1.82

2.10

June

250

264

245

221

219

211

19O

170

155

147

143

145

293

323

290

242

214

179

153

131

147

211

224

209

177

155

153

145

129

122

5,857

195

0.841

0.94

July

108

96

96

96

98

86

79

72

68

63

59

56

52

47

49

59

129

129

99

82

72

67

59

56

55

49

48

49

47

45 

43_

2,213

71.4

0.308

0.36

Aug.

43

43

39

36

37

37

42

63

67

56

62

270

236

226

179

145

122

108

96

86

74

65

68

83

83

70

59

56

47

45

42

2,74b

88.5

0.381

0.44

Sept.

42

43

43

40

37

37

37

35

32

11

35

49

55

47

45

43

41

40

43

46

58

55

46

44

49

48

44

49

72

*69

1,355

45.2

0.195

0.22

Calendar year 1954: Max 6,33O Min 78 Mean 694 Cfsm 2.99 In. 40.63

Water year 1954-55: Max 2,35O Min 31 Mean 526 Cfsm 2.27 In. 30.80

Peak discharge (base, 1,5OO cfs). --Nov. 4 (3 p.m.) 1,990 cfs (11.7D ft); Dec. 16 (time and discharge unknown); Dec. 19 (time and discharge unknown); Feb. 12 (time and discharge unknown); Mar. 17

(5 a.m.) 1,500 cfs (11.O6 ft); Mar. 23 ( 1O p.m.) 1,8OO cfs (11.46 ft); Mar. 27 (6 p.m.) 1,990 cfs

(11.70 ft).

* Discharge measurement made on this day.

and records for nearby stations. Stage-dischai 

4-8, 12-16 (no gage-height record Feb. 14-21).
28 UNION RIVER BASIN

West Branch Union River at Amherst, Maine

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

tannery dam, U.6 mile upstream from Indian Camp Brook, and 0.7 mile northwest of 

Amherst, Hancock County.

Drainage area.--148 sq mi.

Records available.--July 1909 to September 1919, July 1929 to September 1955. Published 

as Union River at Amherst October 1910 to September 1913.

Gage. Water-stage recorder. Altitude of gege is 160 ft (from topographic map). July 1909 

ifo Sept. 30, 1919, staff and chain gage at highway bridge 1 mile dovnstream at different 

datum.

Average discharge.--36 years, 263 cfs .

Extremes.--Maximum discharge during year, 1,500 cfs Dec. 19 (gage height, 6.62 ft); maximum gage height, 8.53 ft Feb. 12 (backwater from ice); minimum discharge, 11 cfs 

Sept. 28 (gage height, 3.06 ft).

1909-19, 1929-55: Maximum discharge, 4,140 cfs Apr. 13, 1940 (gage height, 9.58 ft); 

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 yearsJ.--W3P 801: 1935. WSP 821: Drainage area. WSP 1231: 1912-15, 

1916-19(M).WSP 1301: 1910-11.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

3.0

3.1

3.2

3.3

3.4 

3.6

4.0 

4.5 

5.0 

5.5 

6.0 

6.5

155

305

515

780

1,100

1,430

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

It!

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

263

253

272

449

515

*535

520

486

440

397

368

372

364

357

334

388

535

510

481

431

388

349

312

292

263

253

250

253

250

323

418

11,621

375

2.53

2.92

Nov.

481

515

579

780

763

701

642

589

*544

472

409

372

334

302

282

260

244

235

229

282

458

b44

515

472

431

384

349

334

380

454

13,336

445

3.01

3.36

Dec.

422

376

341

300

265

250

250

255

255

265

270

285

300

325

525

690

631

655

1.420

1,310

1,220

1,090

965

870

780

675

585

545

595

670

625

18,010

581

3.93

4.53

Jan.

590

555

515

490

465

445

420

400

*395

380

355

340

325

305

295

285

275

265

255

245

240

235

225

220

215

210

205

196

190

186

180

9,902

319

2.16

2.49

Feb.

170

166

160

156

15C

148

158

182

215

270

355

840

*805

725

665

615

575

555

530

500

495

490

525

615

690

710

680

650

-

12,797

457

3.09

3.22

Mar.

620

655

565

510

465

445

420

400

370

340

319

431

418

376

349

388

467

454

418

384

345

312

384

418

418

388

449

440

397

380

426

13,151

424

2.86

3.30

Apr.

510

535

544

599

636

740

863

933

863

851

913

959

959

972

1,120

1,220

1,240

1,280

1,290

1,520

1,240

1,160

1,090

1,000

900

810

746

679

652

604

27,228

908

6.14

6.85

May

559

505

472

426

409

426

422

401

376

353

319

292

266

260

263

*244

238

214

205

185

177

163

152

147

150

208

238

241

229

223

217

8,980

290

1.96

2.26

June

214

211

199

182

177

168

152

139

127

112

105

103

115

119

124

127

127

115

105

IL'1

92

82

73

66

64

63

61

56

55

50

3,484

116

0.784

0.87

July

49

47

50

45

38

36

34

32

28

26

26

24

21

19

19

20

26

25

24

27

34

35

34

37

32

27

24

24

20

18

11

918

29.6

0.200

0.23

Aug.

17

16

15

13

12

14

16

21

17

14

25

42

36

40

47

49

47

44

40

37

36

33

44

32

26

25

24

23

20

17

17

859

27.7

0.187

0.22

Sept.

18

17

17

16

15

15

14

12

Tz

12

12

18

16

15

13

13

12

12

12

12

15

13

12

12

12

12

12

12

13

12

408

13.6

0.092

0.10

Calendar year 1954: Max 2,490 Min 52 Mean 411 Cfsm Z . 78 In. 37.73

Water year 1954-55: Max 1,420 Min 12 Mean 331 Cfsm 2.24 In. 30.35

Peak discharge (base, 1,000 efs).--Dee. 19 (6 a.m.) 1,500 cfs (6.62 ft); Apr. 20 (5 a.m.) 1,340 

cfs (6.37 ft). 

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 4-13, Dec. 22 to Mar. 10.
PENOBSCOT RIVER BASIN 29

East Branch Penobscot River at Grindstone, Maine

Location. Lat 45°43 I 50 1 ', long 68°35'20", on left bank 500 ft downstream from Bangor and 

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

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

Drainage area.--1,070 sq mi, approximately (including about 240 sq mi drained by Chamberlain Lake through Telos Canal).

Records available.--October 1902 to September 1955. Monthly discharge only for some periods, published in WSP 1301.

Gage. Water-stage recorder. Datum of gage is 294.74 ft above mean sea level, datum of 

1929. Prior to June 3U, 1929, chain gage on railroad bridge at same datum.

Average discharge. 53 years, 1,889 cfs (unadjusted).

Extremes. Maximum discharge during year, 11,200 cfs Apr. 16 (gage height, 9.86 ft)'; minimum, 162 cfs Aug. 6 (gage height, 3.99 ft).

1902-55: Maximum discharge, 37,000 cfs Apr. 30, 1923 (gage height, 16.9 ft, site 

then in use, present datum); minimum daily (1914-55), 77 cfs Nov. 19, 1924.

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

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

P- 40).

Revisions (water years).--WSP 501: Drainage area. WSP 1301: 1907-12, 1914-29(10.

Rating tables, water year 1954-55, except period of ice effect (gage 

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

5.3 

5.5

6.0

Oct. 1 to Apr. 13

1,050

1,250

1,860

Apr. 14 to Sept. 30

3,520

5,700

7,500

4.0 

4.4 

4.9 

5.5

165

325

650

1,260

6.0 1,970

7.0 3,800

8.0 6,020

9.7 10,600

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

(t)

Oct.

1,600

1 ,630

2,220

3,340

4,440

5,210

5,100

4,060

2,360

1,860

1,860

2,790

4,910

7,500

6,680

5,450

7,470

7,500

5,350

5,160

4,140

3,720

3,560

3,020

2,880

2,410

2,130

2,700

3,020

3,520 

^ 74f *J s 1 ^tv

121,830

3,930

-45.6

Nov.

2,650

2,320

2,280

4,710

6,520

5 , 900

5,310

5,430

5,190

4,440

3,300

2,840

2,260

1,990

1,870

1,810

1,740

1,690

1,640

1,720

3,150

4,410

3,740

3,130

2,410

2,100

1,970

1,920

1,900

1,940

--------

92,080

3,069

-69.8

Dec.

1,830

1,780

1,690

1,630

1,580

1,540

1,530

1,520

1,490

1,480

1,470

1,440

1,440

1,500

1,730

2,600

2,440

2,360

2,520

5,580

5,210

4,800

4,440

4,020

3,740

3,520

3,130

2,860

2,600

2,490 

2,410

78,370

2,528

-172

Jan.

2,520

2 ,280

2,200

2,160

2,1*0

2,070

1,990

1,920

1,860

1,800

1,780

1,730

1,640

1,600

1,540

1,530

1,480

1,470

1,460

1,440

1.460

1,480

1,580

1,480

1,360

1,300

1,270

1,250

1,230

1,220

^- 3 '--I'-

51,250

1,653

-558

Feb.

1,200

1,180

1,170

1,160

1,150

1,150

1,140

1,140

1,150

1,150

1,250

1,730

2,790,

2,700

2,600

*2,570

2,440

2,360

2 ,290

2,220

2 ,220

2 ,230

2 ,310

2 ,440

2,470

2,360

2,290

2,200

-

 

--------

53,040

1,894

-508

Mar.

2,080

2,030

1,970

1,920

1,890

1,900

1,920

1,930

1,960

2,000

2,080

2,29O

2,810

2,770

2,600

*2,550

2,460

2,410

2,360

2,440

3,060

2,950

2,770

2,680

2,580

2,500

2,420

2,360

2,290

2,220

2 ,260

72,460

2,337

-541

Apr.

2.540

2,440

2,490

2,570

2,600

2,810

2,970

3,220

3,320

3,420

3,720

3,940

4,290

5,330

8,250

10 , 400

9,570

8,850

9,650

9,920

9,920

9,540

9,220

9,510

9,510

8,820

8,770

8,660

7,550

7,810

____----

191,410

6,380

+867

May

8,130

6,950

6,480

7,080

8,020

9,510

9,020

7,290

6,380

5,440

*5,560

5,950

5,720

4,620

5,080

5,030

*4,810

4,420

4,120

3,930

3,760

2,640

3,140

2,800

3,120

3,320

3,900

3,140

2,770

3,600

3,970

159,700

5,152

+ 720

June

4,900

4,950

4,420

3,950

2,340

2,570

3,140

3,320

2,550

2,310

2,500

1,400

1,860

2,260

1,350

1,610

1,390

890

812

749

1,590

1,700

1,640

1,540

970

521

474

435

417

411

--------

58,969

1,966

+ 124

July

474

37E

365

365

340

335

32E

316

292

27E

26£

239

23E 23:

24£

32E

642

83C

722

474

370

320

320

330

330

297

278

311

311

274 

244

11,065

357

-1.9

Aug.

235

227

208

194

181

165

197

549

454

655

1.C10

1,130

1,C80

1.C10

540

£10

930

J30

910

840

803

920

1,180

1,540

910

740

704

650

610

586 

570

21,768

702

-454

Sept.

570

570

556

549

749

514

507

500

487

487

487

500

500

480

474

487

461

454

442

442

740

570

454

442

528

677

634

602

634

448

15,945

532

-479

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

3,884 

3.63 

4.18

2,99 

2.8 

3.1

Calendar year 1954: 

Water year 1954-55=

3 2,356

: 2.20

2 2.54

1,095 

1.02 

1.18

1,386

1.30 

1.35

1,796 

1.68 

1.94

7,247 

6.77 

7.55

5,872 

5.49 

6.33

Observed

Max 15,600 Min 833 Mean 3,045 

Max 10,400 Mln 165 Mean 2,542

2,090 

1.95 

2.18

355 

0.332 

0.38

£48 

O.E32 

0.27

53 

0.050 

0.06

Adjusted

Mean 3,041 Cfsm 2.84 In. 38.54 

Mean 2,45O Cfsm 2.29 In. 31.08

* Discharge measurement made on this day.

t Change In contents, equivalent in cubic feet per second, of Chamberlain, Telos, Second and Grand 

Lakes, and Round Pond.

Mote.--Stage-discharge relation affected by ice Dec. 3 to Apr. 13.
30 PENOBSCOT RIVER BASIN 

Penobscot River near Mattawamkeag, Maine

Location.--Lat 45°34'00". long 68°24'10", on left bank 1,800 ft downstream from Mattaseunk 

Dam and powerhouse, 1^- miles upstream from Mattaseunk Brook, and 4jj miles upstream 

from Mattawamkeag, Penobscot County.

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

Records available. June 1940 to September 1955.

Gage. Water-stage recorder. Datum of gage is 191.72 ft above mean sea level, datum of

~1929.

Average discharge. 15 years, 5,644 cfs (unadjusted).

Extremes. --Maximum discharge during year, 27,500 cfs May 10 (gage heiglr t, 9.16 ft); minimum daily, 1,700 cfs Sept. 5.

1940-55: 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. Flow regulated by several reservoirs above station (see p. 40).

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ibtal

Mean

(t)

Oct.

10,600 

11 ,000

10 , 900

13,300

15,600

13,700

11,100

7,770

5,130

4,450

4,960

7,560

10 ,100 

12 ,900

13,200

12,400

16,000

20,900

22,200

22 .200

20,800

18.200

17,200

14,200

12,000

9,270

8,260

8,890

12,400

14,800

14,400

396,390

12,790

+491

Nov.

12,800 

13 , 500

13,700

12,000

14,000

15,200

14,400

13,800

14,000

10,800

7,560

6,630

7,300 

5,460

5,830

5,670

6,040

4,500

6,150

6,040

4,550

9,700

9,700

9,000

S.,310

8,120

9,600

7,050

6,420

7,660

275,490

9,183

-735

Dec.

7,560 

7,250

7,100

6,680

4,500

4,000

2,940

3,310

5,020

5,720

6,580

3,650

3,560 

4,750

5,460

7,050

8,070

7,560

8,620

11,800

15,200

12,300

11,200

9,840

7,870

7,050

6,740

7,400

7,610

7 350

6^950

218,690

7,054

-609

Jan.

6,950 

4,700

5,460

6,580

5,930

5,240

5,620

5,620

5,240

4,500

5,620

6,260

6,370 

6,200

6,370

5,300

4,650

5,770

5,990

5,850

6,150

6,550

5,080

4,860

5,930

6,370

6,420

6,840

7,250

6,200

5,400

181,050

5,840

-2,711

Feb.

5,560 

5,620

5,510

5,850

5,850

4,200

5,670

5,880

5,670

5,850

5,720

6,650

6,470 

6,550

7,720

8,510

8^220

7,610

6,740

5,990

6,950

7,500

7,610

7,870

7,950

6,740

6,740

_

184,990

6,607

-2,287

Mar.

7,610 

7,400

7,500

7,350

7,400

5,990

5,720

6,840

6,900

6,840

6,950

7,000

6,470 

6,580

7,500

*7,000

6,680

6,790

7,500

5.080

5,880

7,870

9,450

9,840

10,400

10,100

6,370

7,870

9,000

9,140

8,890

231,910

7,481

-3,807

Apr.

9,360 

9,360

6,580

8,030

10 , 400

10 , 600

11,200

11,800

12,000

9,840

10 , 800

12,900

13,200 

14,600

16,800

17,900

15,900

14,600

15,900

17,000

17,400

16,500

16,000

15,000

14,200

15,000

14,600

14,500

14,200

15,400

599,570

15,510

+8,025

May

15,800 

15,400

12 , 900

15,700

19,000

24,800

26,700

26,900

27,200

*27,500

27,500

26,700

21,500 

16,500

16,400

17,000

17,800

17,900

16,700

9,220

8,220

6,530

5,880

5,460

6,310

6,950

8,220

9,180

8,620

9 , 600

11,000

478,690

15,440

+3,535

June

12,700 

11,900

9,270

6,470

6,740

5,880

6,470

6,790

6,420

6,040

5,990

5,560

5,460 

5,990

5,400

4,910

4,700

4.250

4,150

5,150

5,350

5,720

5,560

5,460

4,960

4,400

4,500

4,100

3,900

5,560

177,550

5,918

-844

July

3,310 

3,220

2,850

2,420

3,560

3,170

5,220

5,310

5,650

3,750

5,850

3,800

5,650 

3,600

3,600

4,050

4,960

5,880

4,800

5,800

4,100

3,750

4,100

4,050

5,600

4,400

3,650

3,560

3,600

5,460

3,560

116,080

3,745

-2,656

Aug.

,750 

,800

,150

,410

,560

,460

,850

,150

,960

,550

,650

,910

,860 

,400

,250

,050

,450

,400

,800

,550

,350

,650

,860

,020

,080

,100

,600

,200

,100

3,510

4,050

153,080

4,295

-5,401

Sept.

4,050 

4,150

4,450

5,360

1.700

4,250

4,650

4,050

3,170

5,950

4,350

5,750

4.700 

4,150

5,560

5,950

3,900

5,460

3,360

4,000

4,200

3,700

5,080

5,850

4,150

4,250

4,450

3,750

4,200

3 , 900

116,290

3,876

-5,801

Adjusted for change in reservoir contents

Mean 

Cfsra 

In.

15,280 

4.01 

4.62

8.44E 

2.5E 

2.84

Calendar year 1954: 

Water year 1954-55=

6,445 

1.95 

2.25

5,129 

0.945 

1.09

4,520 

1.31 

1.36

5,674 

1.11 

1.28

21,540 

6.45 

7.20

18,980 

5.73 

6.61

Observed

Max 52,900 Min 2,900 Mean 8,812 

Max 27,500 Min 1,700 Mean 7,971

5,074 

1.53 

1.71

1,089 

0.329 

0.38

892 

0.269 

0.51

75 

0.025 

0.03

Adjusted

Mean 9,210 Cfsm 2.78 In. 37.78 

Mean 7,235 Cfsra 2.19 In. 29.68

* Discharge measurement made on this day.

t Change in .contents, equivalent in cubic feet per second, of reservoirs on West and East Branches 

of Penobscot River.

Note. Stage-discharge relation affected by ice or backwater from aquatic vegetation most of the 

year.
PENOBSCOT RIVER BASIH 31

Mattawamkeag River near Mattawamkeag, Maine

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

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

and 4f miles upstream from mouth.

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

Records available.--October 1934 to September 1955.

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

Average discharge.--21 years, 2,406 cfs.

Extremes. Maximum discharge during year, 18,900 cfs Apr. 21 (gage height, 11.38 ft); minimum, 187 cfs Sept. 30 (gage height, 0.59 ft).

1934-55: Maximum discharge, 29,200 cfs Mar. 23, 1936 (gage height, 15.34 ft); minimum, 38 cfs Sept. 19, 1952 (gage height, 0.14 ft).

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

record, which are fair.

Rating tables, water year 1954-55, except periods of Ice effect 

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

Oct. 1 to Apr. 20 Apr. 21 to Sept. 30

1.9

2.0 

2.3

1,O1O 

1,070 

1,270

Note. Same as 

following table 

above 2.3 ft.

0.6 

1.0 

1.6

191

375

755

1,270

1,820

4.0 2,860

6.0 6,080

8.0 1O.5OO

10.0 15,400

11.4 19,000

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2,530 

2,500 

27550"

3,440

4,430

4,880

4,860

4,470

3,900

3,410

3,060

3,250

4,030

4,930

5,570

5,870

5,760

5,640

5,660 

5,510

5,110

4,590

4,100

3,760 

3,390

3,080

2,860

4,200

4,100

4,200

4,600

130,270

4,202

3.00

3.46

Nov.

4,500 

4,400 

4,500

6,6OO

7,650

7,740

7,440

6,680

5,850

5,010

4,270

3,760

3,340

2,990

2,750

2,490

2,340

2,200

2,100 

2,130

2,600

3,510

4,150

4,400 

4,190

3,800

3,370

3,040

2,940

2,860

123,600

4,120

2.94

3. 28

Dec.

2,740 

2,520 

2,280

1,910

1,740

1,600

1,5OO

1,480

1,510

1,580

1,640

1,720

1,800

1,880

2,000

2,400

2,980

3,820

5,350 

6,930

8,290

8,550

8,140

7,50O 

6,810

5,890

5,130

4,640

4,150

3,670

3,380

115,510

3,726

2.66

3.07

Jan.

5,140 

2,920 

2,740

,550

,400

,290

,190

,060

,000

,910

,850

,780

,730

,660

,620

,580

,540

,500

,460 

,440

,400

,580

,360

,350 

,300

,270

,260

,230

,200

,190

,170

54,450

1,756

1.25

1.44

Feb.

1,150 

1,140 

1,100

1,080

1,070

1.O5O

1,030

1,O3O

1,020

1,020

1,O5O

1,090

1,660

2,270

2,620

*2,980

5,240

5,560

5,640 

5,580

5,240

5,110

5,050

5.1OO 

3,350

3,600

3,940

4,O7O

_

______

-------

65, 6OO

2,271

1.62

1.69

Mar.

4,080 

3,900 

3,670

3,410

3,180

2,980

2,790

2,620

2,480

2,340

2,280

2,530

2,410

2,510

2,620

2,800

2,980

3,180

3,110 

2,920

2,760

2,620

2,480

2,400 

2,380

2,370

2,360

2,340

2,330

2,340

2,400

85,570

2,754

1.97

2.27

Apr.

2,510 

2,750 

3,O4O

3,390

3,820

4,290

4,790

5,290

5,700

6,080

6,910

7,850

8,870

9,880

11,700

14,500

16, 700

17,700

18,4OO 

18,800

18,8OO

18,100

17,500

16,6OO 

15,700

15,000

14,200

13,700

13,100

12,600

328,270

10,940

7.81

8.71

May

12,200 

11,800 

11,300

10,800

10,100

9,950

9,750

9,240

8,470

7,610

*7,020

5,850

5,330

4,670

4,240

3,990

3,840

3,620

5,350 

5,O4O

2,790

2,450

2,150

1,960 

1,990

2,480

5,140

3,300

3,110

3,110

4,130

176,740

5,701

4.07

4.69

June

5,010 

5,510 

5,246

4,880

4,470

4,OOO

3,490

2,960

2.5OO

2,170

1,960

1,810

1,800

1,890

1,970

1,900

1,650

1,400

1,250 

1,150

1,400

1,630

1,580

1,460 

1,280

1,190

1,260

1,200

1,100

988

69,898

2,330

1.66

1.85

July

874 

762 

678

615

563

508

466

414

580

560

550

512

284

280

276

507

455

1,450

2,160 

1,900

1,440

1,150

972

980 

909

811

699

664

622

565

502

22,666

751

0.522

0.60

Aug.

448

402 

565

550

507

£84 '£95

360

419

456

430

442

508

570

544

508

556

713

755 

715

825

,180

,440

,650 

T52S

,400

,240

,120

972

852

715

22,590

722

0.516

0.59

Sept.

636 

570 

508

454

419

586

570

555

525

298

284

507

507

302

302

307

280

266

248 

244

248

240

235

222 

209

200

191

19T

191

191

9,286

310

0.221

0.25

Calendar year 1954: Max 23,4OO Mln 54O Mean 3,758 Cfsm 2.68 In. 36.43

Water year 1954-55: Max 18,80O Kin 191 Mean 3,293 Cfsm 2.35 In. 31.90

* Discharge measurement made on this day.

Note. No gage-height record Oct. 27 to Nov. 5, May 11, 12; discharge estimated on basis of weather 

records and records for nearby stations. Stage-discharge relation affected by ice Dec. 4-18, Dec. 30 

to Apr. 1O.
PENOBSCOT RIVER BASIN

Plscataquls River near Dover-Poxcroft, Maine

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

from Black Stream and 4-J miles upstream from Dover-Poxcroft, Plscataquis County.

Drainage area. 297 sq mi.

Records available. August 1902 to September 1955.

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. 53 years, 587 cfs.

Extremes. Maximum discharge during year, 9,560 cfs Apr. 16 (gage height, 10.75 ft); 

minimum, 14 cfs Aug. 2, 3 (gage height, 1.47 ft).

1902-55: Maximum discharge, 21,500 cfs 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.

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

record, which are fair. Low flow regulated by operation of powerplants above station.

Revisions (water years). WSP 279: 1902. WSP 1171: Drainage area. WSP 1201: 1903-17, 

1918-30 (M), 1934-35. WSP 1301: 1909{M).

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Mar. 29

2.1 100 

2.5 216 

3.0 415 

Note. Same as 

following table 

above 3.0 ft.

Mar. 30 to Sept. 30

119

209

415

3.5 

4.0 

5.0 

7.0 

9.0 

10.2

700

1,060

1,990

4,320

6,910

8,710

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

570 SCO"

630

2,000

1,700

1,400

1,050

860

740

700

680

1,000

1,350

1,200

1,000

980

5,200 

1,900

1,600

1,370

1,140

1,000

900

800

740

680

760

1,420

1,270

1,780

1,620

36,640

1,182

3.98

4.59

Nov.

1,410

1,440

1,630

3,910

2,510

1,770

1,390

1,170

1,020

884

807

746

680

611

564

450

455 

460

460

540

1,840

2,510

1,570

1,160

950

835

1,040

700

713

746

34,981

1,166

3.93

4.38

Dec.

668

581

536

455

375

280 2E3"

420

375

415

435

365

330

300

525

1,750

1,120 

930

6,960

3,910

2,210

1,520

1,230

1,050

890

800

765

745

715

695

640

32,275

1,041

3.51

4.05

Jan.

*610 57B520

490

460

430

405

380

360

335

315

305

295

280

260

250

245 

230

225

215

210

196

190

182

178

174

168

*156

152

150

148

9,089

293

0.987

1.14

Feb.

138

130

130

126

126

122 T3"8"

138

140

146

166

395

1,170

99S

920

685

585 

*525

465

420

395

365

355

635

940

820

700

*610

_

12,480

446

1.50

1.56

Mar.

565

535

505

480

465

455

440

430

420

415

435

475

575

52C7

*465

435

450 

520

425

370

360

3T5C7

365

370

375

380

365

365

365

366

415

13,466

434

1.46

1.68

Apr.

694

7S5

726

884

1,110

1,480

1,940

1,990

1,570

1,480

2,100

2,550

2,500

2,860

5,360

8.660

5,660 

4,430

4,770

5,560

4,250

3,220

2,720

2,750

2,410

2,200

2,300

2,090

1,960

*1,910

82,920

2,764

9.31

10.39

May

1,800

1,680

1,590

1,500

1,840

2,680

2,160

1,740

1,690

1,570

1,280

1,050

877

758

700

617

531 

460

415

379

338

313

273

253 2~ST

785

548

388

321

492

1,190

30,439

982

3.31

3.82

June

1,540

1 , 350

950

828

905

786

605

492

415

366

338

321

654

661

548

445

379 

317

261

231

216

203

203

193

174

168

174

168

152

145

14,186

473

1.59

1.77

July

130

119

112

106

96

94

87

74

83

67

41

23

24

23

li

29

83 

149 TT2~

90

79

70

65

61

54

50

44

39

37

37

32

2,129

68.7

0.231

0.27

Aug.

27

15

14

TF

15

16

20

26

53

51

43

48

54

54

54

114

187 

135

112

87

72

74

200

465 2T5~

168

141

112

85

70

67

.2,839

91.6

0.308

0.36

Sept.

61

59

54

51

48

43

40

37

31

29

29

30

30

29

29

29

28

27

27

27

25

24

23

23

23

22

2T

22

22

23

967

32.2

0.108

0.12

Calendar year 1954: Max 10,000 Min 52 Mean 1,065 Cfsm 3.59 In. 48.70

Water- (ateryear 1954-55: I9b4-bt>: Max 8,660O Min 14 Mean 746 Cfsm ur2.51 zsiIn. i34.13 siii

Peak discharge (base. 4,000 cfs).--Nov. 4 (9 to 10 a.m.) 4,340 cfs (7.02 ft); Dec. 19 (12 m.) 

9,020 cfs (10.40 ft); Apr. 16 (11 a.m.) 9,560 cfs (10.75 ft); Apr. 20 (4 a.m.) 6,360 cfs (8.60 ft).

* Discharge measurement made on this day.

Note. No gage-height record Oct. 1-29; discharge estimated on basis of weather records and records 

for nearby stations. Stage-discharge relation affected by ice Dec. 4-9, 12-16, Dec. 22 to Mar. 29.
PENOBSCOT RIVER BASIN 33

Sebec River at Sebec, Maine

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

1,000 ft downstream from highway bridge and dam at outlet of Sebec Lake.

Drainage area. 327 sq mi.

Records available. October 1924 to September 1955.

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

~i"929. Prior to June 22, 1942, water-stage recorder on opposite bank 60 ft downstream 

at same datum.

Average discharge.--31 years, 616 cfs (unadjusted).

Extremes.--Maximum discharge during year, 4,170 cfs Apr. 20 (gage height, 8.04 ft); mini-

 mum, 86 cfs July 15, 16 (gage height, 2.01 ft).

1924-55: 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 period of no gage-height record, which are 

good. Flow partly regulated by Sebec Lake and other reservoirs above station.

Revisions (water years).--WSP 1171: Drainage area, 1936(M). WSP 1301: 1925.

Rating tables, water year 1954-55 (gage height, in feet, and discharge 

in cubic feet per second)

Oct. 1 to Apr. 20

296 

484 

760 

1,060 

1,740 

Note. Same as 

following table 

above 6.0 ft.

Apr. 21 to Sept. 30

84

139

251

495

810

1,140

5.0 

6.0 

7.0 

8.0

1,790

2,500

3,260

4,130

4,220

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2 

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

868

838 8~38~

1,020

1,310

1,720 

1,720

1,540

1,370

1,250

1,190

1,190

1,190

1,160

1,110

1,140

1,510

1,670

1,660

1,580

1,480

1,370

1,280

1,200

1,120

1,060

1,040

1,100

1,090 

1,130

1,160

38,904

1,255

-73.2

Hov.

1,170

1,190 

1,220

1,480

1,660

1,680 

1,610

1,500

1,420

1,390

1,320

1,280

1,250

1,210

1,170

1,130

1,100

1,060

1,040

1,030

1,040

1,100

1,160

1,150

1,100

1,020

994

976

964 

958

36,372

1,212

-34.3

Dec.

934

916 

886

862

844

820

790

724

688

654

642

654

654

636 BT?

683

671

688

1,040

1,480

1,660

1,690

1,600

1,510

1,410

1,330

1,210

1,160

1,110 

1,040

994

30,657

989

-84.0

Jan.

940

90T 

874

844

802

778 

766

742

718

694

677

671

671

671

648

626

626

614

592

587

582

587

582

571

560

550

539

529

514 

499

489

20,447

660

-147

Feb.

420

328 

328

324

319

319 

324

324

319 319"

324

337

337

337

351

360

383

407

412

426

435

445

460

700

802

796

808

820

-

12,264

438

+42. 6

Mar.

826

826 

820

808

796

784 

778

760

748

736

730

718

706

700

688

677

677

659

665

626

620

626

631

614

592

609

609

604

587 

571

560

21,351

689

-230

Apr.

560 578" 

582

598

631

712 

630

700

808

862

922

1,040

1,180

1,360

1,940

3,190

3,920

3,930

3,960

4.140

4,000

3,680

3,350

3,160

2,940

2,700

2,520

2,340

2,170

2,050

61,151

2,038

+ 630

May

1,940

1,860 

1,780

1,730

1,730

1,740 

1,640

1,670

1,430

1,200

860

456

*840

997

984

605

478

512

517

522

512

506

500

500

500

522

528

517

500

*755

29,370

947

+142

June

1,080

1,220 

1,160

1,130

1,110

1,070 

1,020

984

958

560

415

420

650

1,090

1,090

665

636

630

623

610

604

604

610

604

490

222

218

210 210" 

210

21,103

703

-171

July

192

ISS 

156

156

156

153 

149

149

153

156

156

127

115

118

96

8992"

92

94

94

96

96

99

102

102

102

102

102

102 

102

104

3,758

121

-46.7

Aug.

121

124 

104

104

104

104

102

I5T

104

102

102

104

102

104

104

104

104

104

104

104

106

106

109

112

255

415

420

420

450

E17

*FT7

5,E36

179

+12.7

Sept.

512

4~95 

490

490

464

484 

462

440

484

478

473

462

446

446

440

440

435

435

440

435

425

425

430

425

420

400

390

380

376 

361

13,303

443

-404

Adjusted for change in contents In Sebec Lake and Wilson Pond

Mean 

Cfsm 

in.

1,182 

3.61 

4.16

1,17E 

3.6C 

4.02

Calendar year 1954: 

Water year 1954-55:

905 

2.77

3.19

513 

1.57 

1.81

481 

1.47 

1.53

459

1.40 

1.61

2,668 

8.16 

9.10

1,089 

3.33 

3.84

Observed *

Max 5,150 Min 121 Mean 1,007 

Max 4,140 Min 89 Mean 806

532 

1.63 

1.82

74.3 

O.E27 

0.26

192 

O.E87 

0.68

39.0 

0.119 

0.13

Adjusted

Mean 997 Cfsm 3.05 In. 41.38 

Mean 775 Cfsm 2.37 In. 32.16

* Discharge measurement made on this day.

f Change in contents, equivalent in cubic feet per second, in Sebec Lake and Wilson Pond. 

Mote.--Ho gage-height record Nov. 9-25; discharge estimated on basis of recorded range in stage 

.nd record of gate openings in storage dam Just upstream.
34 PENOBSCOT RIVER BASIN

Pleasant River near Milo, Maine

Location. Lat 45°17'05", long 69°00'25", on left bank 2 miles northeast of Milo, Piscataquis County, and 8-5 miles upstream from mouth.

Drainage area. 322 sq mi.

Records available. June 1920 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 302 ft (from river-profile map). Prior 

~^fo June 17, 1929, chain gage at Snows Bridge, 2 miles downstream at datum 32 ft lower.

Average discharge. 35 years, 695 cfs.

Extremes.--Maximum discharge during year, 7,540 cfs Apr. 16 (gage height, 7.10 ft); minimum, 74 cfs Aug. 5, 6 (gage height, 1.61 ft).

1920-55: Maximum discharge, 24,400 cfs Apr. 30, 1923 (gage height, 14.33 ft, site 

and datum then in use), from rating curve extended above 5,500 cfs f^om floodmarks; 

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.

Revisions (water years). WSP 1301: 1921-22(M), 1924-27(M), 1929(M).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.8 

2.0 

2.5 

3.0

71

128

198

460

825

1,340

1,960

3,520

5,300

7,330

Discharge, in cubic feet per second, water year October 1954 to September 1955

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.

617

EBT

680

2,170

2,O9O

1,630

1,260

990

844

777

809

1,520

1,650

1,340

1,1OO

1,340

5,470

2,830

2,020

1,630

1,340

1,150

1,010

901

801

761

935

1,480

1,320

1,560

1,560

42,246

1,363

4.23

4.88

Nov.

1,440

1,440

1,600

5,080

2,810

2,120

1,680

1,390

1,200

1,O40

920

844

777

706

668

632

610

588 558"

722

2,000

3,050

2,300

1,660

1,300

1,070

920

854

863

854

39,726

1,324

4.11

4.59

Dec.

793

714

655

610

595

555

525

520

655

595

555

520

475 ISO595

825

785

1,330

5,360

5,310

3,230

2,150

1,580

1,250

1,050

950

870

825

920

825

785

36,887

1,190

3.70

4.27

Jan.

'ggo 735

655

630

595

560

525

495

480

460

435

410

395

*390

370

340

315

300

290

280

260

245

235

215

205

198

190

182

176

1 68

160

11,584

374

1.16

1.34

Feb.

148

138 128-

122

116

110

ITS

130

116

112

112

340

1,280

1,286

1,180

1,120

*1,040

970

920

870

825

785

855

1,000

1,040

940

845

785

_

------

17,423

622

1.93

2.01

Mar.

745

775

7755-

670

630

660

670

595

590

60O

630

685

620

575

*560

565

630

575

525

495

460

415

405

395

395

415

430

415

410

405

595

17,040

550

1.71

1.97

Apr.

460

435 5TB500

520

615

610

670

745

825

1,020

1,580

1,960

2,540

4,260

7,200

6,130

4,780

5,030

5,420

4,630

3,910

3,320

3,380

3,200

2,670

2,600

2,540

2,510

2,730

77,305

E,577

8.00

8.93

May

2,810

2,720

2,650

2,780

3,330

4,240

3,370

2,620

2,440

2,060

1,740

*1,500

1,310

1,210

1,120

1,020

930

844

793

730

661

602

581

574

595

706

668

560

526

1 , 280

*1,740

48,710

1,571

4.88

5.63

June

1,780

1,540

1,210

1,040

1,040

910

753

639

554

493

460

435

617

920

920

730

581

486

410

397

493

428

380

335

304

283

264

240

223

202

19,067

636

1.98

2.21

July

198

194

227

232

198

168

158

148

128

135

131

116

98

9598"

128

304

602 IT6-

293

236

194

165

161

151

161

131

128

122

107

98

5,721

185

0.575

0.66

Aug.

95

95

93

84

76

76

101

236

274

183

161

269

288

240

219

288

357

386

298

232

202

350

5,180

2,720

1,570

950

683

526

403

346

309

15,290

493

1.53

1.76

Sept.

*288

F74

245

227

202

202

187

161

161

161

168

206

232

219

206

206

202

168

135

138

138

135

131

131

141

131

rss- 119

168

176

5,393

180

0.559

0.62

Calendar year 1954: Max 8.8OO Min 126 Mean 1,143 Cfsm 3.55 In. 48.24

Water year 1954-55; Max 7,200 Min 76 Mean 922 Cfsm 2.86 In. 38.87

Peak discharge (base, 5,7OO cfs).--Dec. 19 (7 p.m.) 6,850 cfs (6.77 ft); Apr. 16 (12 m. to 3 p.m.) 

7,540 cfs 17.10 ft)j May 6 (7 a.m.) 4,340 cfs (5.48 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 3-17, Dec. 23 to Apr. 13.
PENOBSCOT RIVER BASIN 35

Piscataquis River at Medford, Maine

Location. Lat 45°15"40", long 68°52'05", on left bank ifmiles southwest of Medford, 

Piscataquis County, and 3j miles downstream from Pleasant River.

Drainage area.--1.161 sq mi.

Records available.--Jane 1924 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 248.68 ft above mean sea level, datum of 

1929. Prior to Aug. 14, 1929, staff gage at site if miles downstream at different 

datum.

Average discharge. 31 years, 2,297 cfs.

Extremes. Maximum discharge during year, 22,300 cfs Apr. 16 (gage height, 9.81 ft); minimum, 232 cfs Aug. 6, 7 (gage height, 1.61 ft).

1924-55: Maximum discharge, 50,200 cfs Mar. 20, 1936 (gage height, 15.07 ft); from 

rating curve extended above 20,000 cfs by logarithmic plotting; minimum, 99 cfs 

Oct. 28, 1947 (gage height, 1.28 ft).

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

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 (water years). WSP 1171: Drainage area. WSP 1231: 1936. WSP 1301: 

1925-29(M).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Apr. 15 Apr. 16 to Sept. 3O

2.1 

2 . 5 

3.0 

3.5 

4.0

537

880

1, 440

2,130

2,960

5.0 5,090

6.0 7,800

7.0 11,300

8.6 18,OOO

1.6 

2.0 

2.5 

3.0 

3.5

227

440

84O

1,340

1,980

4.O 2,75O

5.0 4,780

6.0 7,240

8.0 14,300

9.8 22,300

Discharge, in cubic feet per ond, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2,630 

2,730

2,830

6,280

7,O6O

5,890

5,220

4,420

3,840

3,530

3,530

4,770

5,160

4,480

3,900

4,060

11 . 200

8 880

e|670

5,600

4,920

4,390

3,960

3,670 

3,350

3,090

3,200

5,020

*4,960

5,600

5,910

150,750

4,863

4.19

4.83

Nov.

5,440 

5,420

5,560

10,100

9,320

7,230

6,080

5,290

4,700

4,220

3,790

3,590

3,290

3,070

2,940

2,660

2,560

2,590

2,510

2,660

5,150

7,710

6,430

4,940 

4,240

3,790

3,430

3,270

3,270

3,470

138,720

4,624

3.98

4.44

Dec.

3,250 

2,960

2,610

2,210

2,040

1,900

1,840

1,770

1,700

1,650

1,640

1,660

1,700

1,840

2,130

3,070

2,890

3,810

9,130

17,700

11,100

7,600

6,130

5,090 

4,370

3,730

3,410

3,140

2,960

3,070

2,920

121,020

3,904

3.36

3.87

Jan .

,780 

,640

,510

,390

,290

,130

,020

,900

,810

,700

,570

,520

* ,330

,310

,270

,260

,250

,240

,220

,220

,210

,200

,180

,180 

,170

,160

,140

,120

,090

,080

,070

4 ,960

,547

1.33

1.53

Feb.

860 

805

740

660

615

590

76K

820

765

730

920

1,380

5,690

3,290

3,000

,750

,560

,420

,350

,320

,26O

,160

,120

,780 

*3,180

3,240

3,050

2,960

_

-----

53,780

1,921

1.65

1.72

Mar.

2,780 

2,580

2,45O

2,310

2,23O

2,130

2,070

2,010

2,000

1,950

2,130

2,420

2,640

*2,610

2,160

2,260

2,290

2,130

1,870

1,710

1,620

1,600

1,600

1,580 

1,580

1.570

1 , 560

1,570

1,580

1,600

1,650

62,240

2,008

1.73

1.99

Apr.

1,900 

2,460

2,330

2,550

2,700

3,570

4,070

4,270

3,960

4,250

4,700

6,000

6,400

8,400

14,700

22,200

22,100

17,500

18,000

18,900

16,000

13,800

11,400

11,500 

10,400

9,400

8,500

7,600

7,400

7,500

274,460

9,149

7.88

8.79

May

7,800 

7,400

7,OOO

7,700

9,000

9,950

8,100

7,000

6,000

5,200

4,800

*4,000

3,650

3,150

2,800

2,550

*2,380

2,200

2,020

1,920

1,800

1,680

1,580

1,560 

1,630

2,600

2,470

1,940

1,680

2,280

*4,210

128,050

4,131

3.56

4.10

June

5,010 

4,940

4,080

3,580

3,640

3,440

3,020

2,560

2,270

2,090

1,710

1,540

1,660

2,270

2,600

2,530

2,320

2,040

1,750

1,480

1,520

1,440

1,320

1,320 

1,230

1,180

1,000

723

660

620

-------

65,543

2,185

1.88

2.10

July

705 

566

573

612

669

510

454

434

416

422

540

363

324

309

295

341

552

985

3~4TJ

705

566

496

440

410 

392

392

369

346

330

314

293

15,061

486

0.419

0.48

Aug.

288 

278

273

259

241

236

?55

392

503

428

404

468

559

503

468

538

750

903

750

612

531

538

2,920

3.820 

27570

1,830

1,560

1,320

1,160

1,050

980

27,387

883

0.761

0.88

Sept.

*950 

921

885

849

822

804

786

759

732

723

723

750

822

795

759

750

732

714

696

696

678

660

777

573 

482

552

628

580

490

BTS

21,766

726

0.625

0.70

Calendar year 1954 : Max 26,1OO Min 585 Mean 4,061 cfsm 3.50 In. 47.47

Water year 1954-55: Max 22,200 Min 236 Mean 3,032 Cfsm 2.61 In. 35.43

Peak discharge (base, 15,000 ers). Dec. 2O (7 to 8 a.m.) 19,400 cfs (8.9O ft); Apr. 16 (time 

unknown) 22,3OO cfs (9.81 ft).

* Discharge measurement made on this day.

Note. No gage-height record Mar. 31 to May 17; discharge estimated on basis of recorded range in 

stage and records of stations at Dover-Foxcroft and on tributary streams. Stage-discharge relation 

affected by Ice Dec. 2-17, Dec. 24 to Mar. 30.
36 PENOBSCOT RIVER BASIN

Penobscot 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, Penobscot County.

Drainage area. 6.600 sq mi, approximately (including about 240 sq mi drained by Chamberlain Lake through Telos Canal).

Records available.--November 1901 to September 1955. Records prior to 1910 republished 

with some revisions in WSP 279.

Gage.--Water-stage recorder. Datum of gage is 125.94 ft above mean sea level, datum of 

1929. Prior to Dec. 11, 1912, chain gage at same site and datum.

Average discharge.--53 years (1902-55), 11,610 cfs (unadjusted).

Extremes.--Maximum discharge during year, 70,000 cfs Apr. 17 (gage height, 14.84 ft); 

minimum, 2,970 cfs Sept. 6 (gage height, 1.97 ft).

1901-55: Maximum discharge, 153,000 cfs May 1, 1923 (gage height, 25.15 ft), from 

rating curve extended above 88,000 cfs by logarithmic plotting; minimum, 1,630 cfs 

Oct. 29, 1905 (gage height, 1.0 ft).

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

regulated by several reservoirs above station (see p. 40).

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

of Old Town.

Revisions (water years).--WSP 1171: 1940. WSP 1231: 1902-13.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

17,000

17,600

17,700

23,200

30,600

29,500

26,000

20,700

16,500

13,800

12.700

16,000

19,600

22i900

24,200

23,000

32,600

57,400

36,000

34,300

33,200

29,900

27,400

25,000

22,000

18,700

16,200

17,900

21,000 

25,600

28,400

736,600

23,760

 1-417

Nov.

27,100

28,200

28,600

33,700

56.900

35,500

32 , 400

28,900

27,700

24,400

20,200

15,900

15,400

14,200

12,400

12,400

12,000

11 , 400

11.500

11,400

15,300

21,000

23,200

20,600

18,700

16,500

17,400

16,400

13,800

15,500

618,400

20,610

-769

Bee.

15,700

14,400

12,900

11,400

10,900

8,550

7,600

7.210

8,410

9,260

9,820

10,000

8,980

9,260

9,850

11,200

15,400

16,600

52 , 500

42,900

57,600

51,900

25,400

22,500

19,400

18,200

17,200

16,400

16,200

16,000

15,000

506,440

16,540

-693

Jan.

14.100

13,400

12,500

12,900

12,700

11,900

10,900

10,800

11,200

10,600

10,900

11,200

*11,000

11,000

11,000

10,300

9,560

9,500

10,000

10,000

9,970

9,910

9,700

9,180

9,350

9,470

9,440

9,440

9,410

9, 260 

8,69C)

329,280

10,620

-2,858

Feb.

9,410

9,380

9,350

9,550

9,550

9.52O

9,060

9,150

9,150

9,120

9,120

9,090

9,090

8,890

9,050

9,260

9,560

10,000

1.0,600

11,500

15,900

15,200

15,000

*17,400

19,400

20.500

19,500

17,400

-

327,080

11,680

-2,244

Mar.

17,000

16,800

15,800

14,800

13,900

13,200

12,500

12,700

15,000

15,000

12,900

13,000

15,200

*12,700

12,900

15,200

12,700

12,200

11,700

11,200

10,800

11,900

12,400

12,500

12,900

12,900

12 , 500

11,900

12,200

14,100 

15,000

407,500

13,150

-4,037

Apr.

15.400

15,800

16,200

17,000

18,200

20,000

22,500

26,000

26,000

25,000

27,200

54,200

57,800

39,800

49,600

63,800

69,200

61,900

61,400

65,400

65,200

60,500

55,800

52,500

49,400

47,300

44,400

43,600

41,600 

59,600

U.212.5

40,410

+8,655

May

39,700

38,500

55, 400

34,600

56,200

44,200

51.000

48,000

46,500

44,200

42,600

*40,700

56,500

30,000

25,900

26,800

26,700

25,600

24,200

18,400

14,800

13,100

11,100

10,900

9.510

15,600

16,200

16,400

14,700 

14,900

21,600

872,110

28,510

+3,677

June

*26,800

27.900

24,500

20,100

19,200

16,700

15,400

14,300

15,200

11,800

10,800

10,200

9,120

10,800

11,900

10, 500

9,840

8,990

7,850

7,270

8,680

9,610

9,980

9,580

9,090

8,080

7,480

6,980

6,730 

6.250

369,410

28,130

-1,015

Jvly

5,7OO

5,310

5,160

5,110

4,720

4,890

4.440

4,870

4,830

4,980

5,920

5,160

4,940

4,830

4,810

4,920

5,800

8,740

10.900

8,870

7,550

6,550

5,680

5,850

5,730

5,610

5,730

5,110

4,980 

4,960

4,740

173,170

5,683

-2,703

Aug.

4,520

4,630

4,570

4,670

4.250

4,440

4,420

5,070

5,570

5,870

5,380

6,060

6,180

6,500

5,640

5,730

5,990

6,500

6,380

6,460

5,940

6,380

8,080

12,400

11,500

9,210

7,760

7,460

*6,660 

6, 380

5,800

196,180

6,328

-3,388

Sept.

5,890

5.990

5,920

5,990

5,200

3.420

4,980

5,820

5,180

4,480

5,340

5,590

5,290

5,940

5,250

4,940

5,250

5,200

4,940

4,870

5,200

5,360

5,540

4,940

4,740

5,090

5,220

5,540

4,890 

5,250

157,050

5,255

-4,205

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

24,180 

5.66 

4.22

19.B4C 

5.01 

5.56

Calendar year 1954: 

Water year 1954-55:

15,650 

2.57 

2.73

7,762 

1.18 

1.56

9,456 

1.45 

1.49

9,113 

1.38 

1.59

49,060 

7.43 

8.29

51,810 

4.82 

5.56

Observed

Max 81,900 Min 5,290 Mean 18,490 

Max 69,200 Min 5,420 Mean 16,190

11,300 

1.71 

1.91

2,980 

0.452 

0.52

2,940 

0.445 

0.51

1,030 

0.156 

0.17

Adjusted

Mean 18,880 Cf*m 2.86 In. 58.79 

Mean 15,420 Cfsm 2.54 In. 31.71

* Discharge measurement made on this day.

t Change in,contents, equivalent in cubic feet per second, of reservoirs on West and East Branches 

of Penobscot River, also Sebec Lake and Wilson Pond in Piscataquis River basin.

* Expressed in thousands.

Note. Stage-discharge relation affected by ice Dec. 3-18, Dec. 24 to Apr. 10.
PENOBSCOT RIVER BASIN 37

Passadumkeag River at Lowell, Maine

Location. Lat 45"11'00", long 68"28'25", on right bank at Lowell, Penobscot County, half 

a mile downstream from dam and highway bridge and 10 miles upstream from mouth.

Drainage area,.--899 sq mi.

Records available.--October 1915 to September 1955.

Gage. Water-stage recorder. Datum of gage is 151.3 ft above mean sea level, datum of 

1929. Oct. 1, 1915, to Sept. 30, 1917, chain and staff gages at same site ard datum. 

Oct. 1, 1917, to Nov. 30, 1921, chain gage at site on left bank 400 ft downstream from 

highway bridge at different datum.

Average discharge.--40 years, 495 cfs.

Extremes. Maximum discharge during year, 2,530 cfs Apr. 19 (gage height, 5.72 ft); maximum gage height, 5.85 ft Feb. 14 (backwater from ice); minimum discharge, 92 cfs 

Sept. 28 (gage height, 0.98 ft).

1915-55: 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).

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

record, which are fair.

Revisions.--WSP 821: Drainage area.

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Mar. 20 Mar. 21 to Sept. 30

2.0 

2.5 

3.0 

4.0 

4.2

354

538

750

1,270

1,390

0.9 

1.1 

1.5 

2.0 

2.5

114

205

365

560

3.0 780

4.0 1,340

5.0 1,980

5.7 2,510

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

480,

495

515

657

786

950

1,050

1,040

920

840

820

840

860

840

860

920

1,050

1,120

1.140

1,110

1,020

900

820

770

750

740

750

780

840

860 

870

26,393

851

2.85

3.29

Nov.

880

900

960

,060

,170

.210

,200

, 120

,000

920

860

800

740

680

620

600

580

570

580

655

710

808

865

890

890

855

813

741

670

657

25,004

833

2.79

3.11

Dec.

648

632

607

550

500

460

435

420

405

400

405

425

450

480

520

580

655

804

1,110

1,250

1.540

1,340

1,220

1,110

1,050

1,000

950

925

89O

840

23,261

750

2.51

2.89

Jan.

810

785

765

750

730

705

690

670

660

640

625

615

*600

590

580

580

580

575

570

570

565

565

560

560

560

555

555

550

545

540

540

19,185

619

2.07

2.39

Feb.

540

535

535

530

530

525

540

550

575

590

625

715

820

840

845

840

*845

880

92JD

910

990

1,010

1,050

1.120

1,110

1,060

1,050

1,060

-

22,140

791

2.65

2.76

Mar.

,110

.120

,110

,060

,O50

1,040

1,070

1,090

1,000

890

850

840

820

805

795

805

840

865

835

820

815

780

780

770

765

755

765

765

745

649

27,080

874

2.92

3.37

Apr.

685

735

765

805

870

966

1,090

1,210

1,230

1,240

1,340

1,500

1,470

1,510

1,740

2,120

2,260

2,320

2,370

2.460

2,410

2,340

2,240

2,130

2,020

1 , 900

1,790

1,690

1,610

1,540

48,356

1,612

5.39

6.01

May

1.470

1/390

1,330

1,240

1,180

,150

,130

,120

,100

,080

1,040

984

920

880

805

740

721

712

*703

676

649

620

588

560

720

775

840

865

850

845

28,543

921

3.08

3.55

June

840,

13401

810

820

825

810

785

721

672

620

576

536

520

532

536

552

604

616

568

596

658

620

596

564

572

596

628

632

584

457

19,286

643

2.15

2.40

July

358

310

287

271

252

244

235

224

216

208

202

195

184

179

179

195

252

373

433

433

399

358

307

271

241

210

189

174

160

149 

142

7,830

253

0.846

0.98

Aug.

136

130

122

116

112

112

112

118

120

118

120

134

144

153

155

165

189

216

244

252

241

218

205

197

192

184

174

165

153

147

142

4,986

161

0.538

0.62

Sept.

138

134

128

122

116

116

112

110

1O8

106

106

112

114

114

114

114

114

114

112

110

110

108

104

103

99

95

93

95

97

95

3,313

110

0.368

0.41

Calendar year 1954: Max 3,400 Min 157 Mean 786 Cfsm 2.63 In. 35.68

Water year 1954-55: Max 2,460 Min 93 Mean 700 Cfsm 2.34 In. 31.78

* Discharge measurement made on this day.

Note. No gage-height record Oct. 6 to Nov. 20; discharge estimated on basis of recorded range in 

stage and records for nearby streams. Stage-discharge relation affected by ice Dec. 4-17, Dec. 23 

to Mar. 20.
38 PENOBSCOT RIVER BASIN

Penobscot River at Passadumkeag, Maine

Location. Lat 45°1U'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,OOP sq mi, approximately (including about 240 sq mi drained by Chamberlain Lake through Telos Canal).

Records available. October 1938 to September 1955. Prior to November 1938, monthly discharge only, published in WSP 1301.

Gage. --Water-stage recorder. Datum of gage is 123.6 ft above mean sea level, unadjusted. 

Average discharge.--17 years, 12,420 cfs (unadjusted).

Extremes.--Maximum discharge during year, 71.6UO cfs Apr. 17 (gage height, 10.35 ft); 

minimum, 3,520 cfs Sept. 6 (gage height, 2.77 ft).

1938-55: 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).

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

regulated by several reservoirs above station (see p. 40).

Revisions (water years). WSP 1171: 1940.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

(t)

Oct.

17,700

18,400

18,400

24,400

31,600

30,800

27,700

22,100

17,800

15,000

15,800

16 , 900

20,700

23,900

25,200

24,200

33,300

57,800

36 , 800

35,700

34,600

31,300

28,600

26,300

23,400

19,900

17,400

19,200

22,100

26,500

29,400

770,900

24,870

+417

Nov.

28,700

29,800

30,300

34 , 900

38,200

37,200

34 , 500

30,600

29,000

25,700

22,200

17,100

16,300

15,300

13,300

13,300

12 , 600

12,100

12,000

12,000

15,500

21,100

24,400

21,700

19,700

17,600

18,200

17,300

14,600

16,200

651,400

21,710

-769

Dec.

16.400

15,300

13,700

12 , 700

11,600

9,140

8,170

7,790

8,930

9,790

10,400

10,600

9,570

9,900

10,500

11,800

14,300

17,600

33,300

47,000

41,200

33,600

27,000

26,000

20,900

19,500

18,400

17,600

17,400

17,200

16 , 100

543,390

17,530

-693

Jan.

15.100

14,500

13,500

13,900

13,700

12,900

11,800

11.700

12,100

11,400

11,700

12,000

12,100

11,800

11,800

11,100

1O , 300

10 , 300

10,700

10,700

10,700

10 , 600

11,300

9,400

9,790

10,200

10,200

10,200

10,100

9 , 960

9,400

354,950

11,450

-2,858

Feb.

10,400

10,100

10,100

10,100

10,100

10,000

9,400

9,900

9,900

9,900

9,960

10,000

9,790

9,400

10,200

10,400

10,700

11,200

11,800

12,700

15,200

16 , 700

16,400

18,900

20,900

21,900

20,900

18,800

-

________

355,750

12,710

-2,244

Mar.

1 8 , 400

18,300

17,100

16,200

15,300

14,600

14,000

14,200

14 , 300

14,200

14,000

14,200

14,300

13 , 800

14,000

14,300

13,800

13,300

12,800

12,500

12,600

12 , 900

13,500

13,500

13,900

13,900

15,500

12,900

15,200

15,000

15,900

444,200

14,330

-4,037

Apr.

16,500

16,600

17,500

18,100

19,400

21,400

24,000

28,600

27,700

27,700

29,000

56,800

59,800

42,100

52 , 700

66,700

70,400

65,100

65,400

67,600

66,400

68,500

56,400

55,200

50,500

48,800

45,900

44,900

45,200

41,200

tl,267.7

42,260

+8,655

Hay

40 , 800

59,400

56,600

55,700

57,100

45,200

51,000

47,900

46,600

44,700

45,100

* 41 , 500

57,200

51,000

26,900

27,600

27,500

26,400

25,100

19,200

15,600

14,000

12,100

11 , 700

10,500

15,300

17,400

17,200

15,500

16,300

23,100

899,200

29,010

+3,677

June

*28,500

28,600

25,500

20,700

20,000

17,100

16,100

14,800

15 , 800

12,400

11,500

10 , 900

9,680

11,600

12,400

11,000

10,400

9,460

8,400

7,870

9,250

10 , 100

10,400

9,790

9,520

8,690

8,040

7,620

7,510

6,780

587,810

12,950

-1,015

OVly

6,250

5,720

5,580

5,470

4,980

5.55Q

4,780

5,220

5,150

5,550

5,530

5,580

5,220

5,120

5,010

5,220

6,150

9,250

11,500

9,250

7,910

7,010

6,150

6,550

6,150

6,050

6,050

5,430

5,220

5,180

4 ' 9 1C

187,610

6,052

-2,703

Aug.

4,780

4,840

4,980

4,780

4.560

4,560

4,560

5,260

5,720

5,940

5,610

6,500

6,410

6,480

5,900

5,940

6,250

6,700

6,820

6,700

6,190

6,590

8,880

12 , 600

11,400

9,500

7,950

7,660

*6,820

6,650

6,050

202,940

6,546

-5,588

Sept.

6,080

6,250

6,120

6,260

5,550

5,660

5,120

6,010

5,290

4,590

5,450

5,850

5,510

6,080

5,400

5,120

5,560

5,560

5,040

5,010

5,550

5,510

5,400

4,910

4,840

5,180

5,260

5,610

4,980

5,560

161,210

5,374

-4,205

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

25,290 

5.61 

4.16

20,94C 

2.9= 

5.5^

Calendar year 1954: 

Water year 1954-55:

) 16,840 

2.41 

I 2.78

8,592 

1.25 

1.42

10,470 

1.50 

1.56

10,290 

1.47 

1.70

50,920 

7.27

8.11

52,690 

4.67 

5.58

Observed

Max 86,400 Win 6,550 Mean 19,520 

Max 70,400 Win 5,660 Mean 17,060

11,920 

1.70 

1.90

3,549 

0.478 

0.55

5,158 

0.451 

0.52

1,169 

0.167 

0.19

Adjusted

Mean 19,910 Cfsm 2.84 In. 38.61 

Mean 16,290 Cfsm 2.35 In. 31.61

* Discharge measurement made on this day.

t Change In contents, equivalent in cubic feet per second, of reservoirs In West and East Branches 

of Penobscot River, also Sebec Lake and Wilson Pond In Plscataquls River basin.

* Expressed in thousands.

Note.--Stage-discharge relation affected by Ice Dec. 3-18, Dec. 21 to Apr. 10.
PENOBSCOT 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 Kenduikeag, 

Penobscot County.

Drainage area.--178 sq mi.

Records available.--October 1941 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 97 ft (from topographic map).

Average discharge. 14 years, 314 cfs.

Extremes. Maximum discharge during year, 3,050 cfs Dec. 20 (gage height, 9.20 ft); minimum, 2.3 cfs Sept. 26, 27 (gage height, 1.20 ft).

1941-55: Maximum discharge, 6,440 cfs Sept. 12, 1954 (gage height, 14.83 ft); minimum, 1.0 cfs Sept. 30, Oct. 1, 1948 (gage height, 1.09 ft).

Rating table, water year 1954-55, except periods of ice effect (gag 

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

(Shifting-control method used Sept. 12-30)

1.0

1.1 

1.3

3.0 

4.0 

5.0 

6.0 

7.0 

9.0

263

560

955

1,380

1,860

2,930

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

221

280

285

1,260

1,290

865

606

453

358

301

296

479

512

422

333

370

975

900

620

485

395

344

319

283

249

230

275

525

466

560 

790

15,747

508

2.85

3.29

Nov.

690

726

845

2,100

1,880

1,300

945

734

595

492

410

369

322

283

263

221

218

218

216

285

770

939

*730

536

422

358

309

298

392

630

18,496

617

3.47

3.87

Dec .

616

472

340

285

240

205

194

T94

205

215

290

315

265

230

835

2,220

1,840

1,620

2,510

2,680

1,820

1,200

915

710

580

490

430

400

430

475 

460

23,681

764

4.29

4.95

Jan.

405

370

365

310

290

265

250

240

*230

215

205

194

180

172

162

152

150

144

138

132

130

126

124

118

112

110

104

100

98

96 

9J5

5,780

186

1.04

1.20

Feb.

90

87

84

82

80

79

79

79

77

86

152

430

*875

960

875

720

670

620

615

620

630

640

695

710

1,080

1,120

1,040

960

-

14,235

508

2.85

2.97

Mar.

945

895

815

750

695

650

610

580

560

555

560

590

*635

595

560

580

670

890

790

775

690

670

670

720

790

780

760

755

750

750 

835

21,870

705

3.96

4.56

Apr.

1,120

1,380

1,490

1,520

1,900

2,170

2,380

2,4OO

1,740

1,440

1,600

1,700

1,490

1,400

1,680

2,260

2,070

1,420

1,190

1,440

1,170

875

722

710

642

574

578

581

495

425

40,562

1,352

7.60

8.48

May

366

309

268

237

288

578

546

431

395

361

296

241

*198

177

169

153

139

124

113

106

98

89

77

80

149

244

293

192

133

171 

345

7,366

238

1.34

1.54

June

592

581

495

366

304

249

181

135

107

90

83

80

114

140

136

108

87

72

61

53

50

51

56

56

50

53

66

62

55

47

4,580

153

0.860

0.96

July

41

39

42

48

38

32

29

27

24

23

22

21

19

19

20

21

26

31

27

24

23

22

21

20

18

17

15

15

14

14 

13_

765

24.7

0.139

0.16

Aug.

12

11

10

9.5

8.5

8.5

12

21

27

21

19

23

33

31

28

25

21

22

24

22

19

18

19

37

35

27

22

18

16

12 

11

622.5

20.1

0.113

0.13

Sept.

11

10

10

9.0

8.0

7.5

7.0

6.0

5.7

5.7

6.0

6.0

6.0

6.0

5.7

4.7

4.7

4.4

4.1

4.1

3.1

2.8

2.4

2.4

2.6

2.3

2.3

2.4

3.4

4.1

159.4

5.31

0.030

0.03

Calendar year 1954: Max 5,520 Min 46 Mean 563 Cfsm 3.16 In. 42.93

Water atyear 1954-55: 1954-55: Max 2.68O Min 2.3 Mean 422 Cfsm 2.37 In. 32.14

Peak discharge (base, l,6oo cfs).--Nov. 4 (6 p.m.) 2.280 cfs (7.8O ft); Dec. 16 (8 to 9 a.m.) 

,300 cfs (7-85 ft); Dec. 2O (1:30 a.m.) 3,O5O cfs (9.2O ft); Apr. 8 (2 to 3 a.m.) 2,540 cfs (8. 

 tl: Apr. 16 (8 p.m.) 2,420 cfs (8.08 ft).

, cs - ; ec . : a.m. 

ft); Apr. 16 (8 p.m.) 2,42O cfs (8.08 ft). 

* Discharge measurement m made on this day..

Note. Stage -discharge relation affected by Ice Dec. 

rd Feb. 14-21; discharge estimated on basis of weathe

ic. 3-14, , Dec. . 22 to Apr. 6 (no gage-height records).
40 PENOBSCOT RIVER BASIN

Reservoirs in Penobscot River basin, Maine

Chesuncook, Rlpogenus, and Caribou Lakes and Moose Pond in West Branch Fenobscot River 

basin are controlled by Ripogenus Dam, in T. 3, R. 11, Piscataquis County, 36 miles upstream from Millinocket and 42 miles northeast of Greenville; presert 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, Pemadumcook North Twin, South Twin, and Elbow Lakes in West Branch Penobscot 

River basin are controlled by North Twin Dam, 3 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 Penobseot River basin are controlled by dams at outlet of Chamberlain 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 cu 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 

in 1942 at outlet of Grand Lake, in T. 6, R. 8, Penobscot County; usable capacity, 

1,785,000,000 cu ft between gage heights 643.0 and 655.0 ft. Records furnished by 

Bangor Hydro-Electric Co.

Sebee Lake on Sebec River at Sebec, Piscataquis County, used for power and log driving; 

usable capacity, 2,511,000,000 cu ft between gage heights 91 and 100 ft. Gage-height 

records furnished by Bangor Hydro-Electric Co.

Wilson Pond on Wilson Stream, 2-f 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 contents, In millions of cubic feet, water year October 1954 to September 1955

Month

December. ............................

Se ptember ............................

Water year 1954-55. ................

Chesuncook, Ripogenus, 

Caribou, Ambajejus, 

Pemadumoook, North Twin, 

South Twin, and Elbow 

Lakes and Moose Pondt

-1,171

-8,610

-20,299

Chamberlain, Telos, 

Second, and 

Grand Lakes 

and 

Round Pond

-181

-460

+ 114

-1,493

+2,247

+1,928

+322

-5

-1,216

-1,241

-2,897

Wilson 

Pond and 

Sebec 

Lake

-89

-225

-395

+379

-444

+34

-1,048

-990

t Includes change in contents of following additional reservoirs in West Branch Penobscot 

River basin; used primarily for log driving (total capacity approximately 12,000,OOO,OOO cu ft); 

Penobscot, Seboomook, Caucomgomoc, Loon, Shallow, Umbazooksus, Harrington, Sourdnahunk, Rainbow, 

Ragged and Millinocket Lakes, Canada Palls Reservoirs, Dole and Poland Ponds.
SHEEPSCOT RIVER BASIN 

Sheepscot River at North Whitefield, Maine

41

Location.--Lat 44°13'20", long 69°35'40", on left bank at North Whitefield, Lincoln County, 

just upstream from highway bridge, half a mile downstream from Pleasant Pond Brook.

Drainage area. 148 sq mi.

Records available.--October 1938 to September 1955.

Gage. Water-stage recorder. Datum of gage is 101.1 ft above mean sea level, datum of 

1929.

Average discharge.--17 years, 235 cfs.

Extremes. Maximum discharge during year, 2,100 cfs Dec. 19 (gage height, 6.88 ft); minimum, 13 cfs Sept. 23, 24 (gage height, 1.89 ft).

1938-55: Maximum discharge, 5,260 cfs Apr. 13, 1940 (gage height, 11.81 ft, backwater from fish weir), from rating curve extended above 1,900 cfs by logarithmic plotting; minimum, 5.0 cfs Oct. 24, 1941 (gage height, 1.70 ft).

Remarks. Records excellent except those for period of ice effect, which are fair. Some 

regulation at low flow by sawmill at North Whitefield.

Revisions (water years) . WSP 1231: 1940.

Rating table, water year 1954-55, except period of ice effect (E 

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

2.4 

2.6 

3.0

87

166

3.5 

4.0 

5.0 

6.0 

7.0

311

491

940

1,520

2,180

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

199

186

176

224

218

191

171

152

137

131

129

133

127

119

112

148

224

186

161 

148

139

133

125

106

108

104

106

106

102 

125

148

4,574

148

1.00

1.15

Nov.

164

199

330

623

522

503

483

457

423

380

338

308

275

241

227

204

194

184

176 

270

453

461

398

373

359

*338

318

318

470

*588

10,577

353

2.39

2.67

Dec.

514

453

405

359

335

298

278

259

241

314

352

291

269

238

805

780

649

780

1,960 

1,490

1,360

1,170

980

882

727

610

555

487

476

457

457

19,231

620

4.19

4.83

Jan.

405

412

453

416

359

348

328

294

278

256

241

220

200

188

178

168

160

154

146

140

130

120

114

112

110

108

100

97

94

89

89

6,507

210

1.42

1.64

Feb.

87

87

86

86

*84

84

86

92

114

116

192

1,410 82~5

769

663

584

522

472

431 

387

352

328

308

580

563

522

491

503

-

10,824

387

2.61

2.72

Mar.

575

514

640

550

499

468

438

387

342

525

430

605

503

446

427

563

632

538

472 

427

384

356

560

563

526

499

571

518

457

*442

491

15,148

489

3.30

3.80

Apr.

530

526

514

522

538

563

592

584

546

530

530

510

480

457

483

495

449

423

423 

480

423

391

380

370

*348

370

398

366

499

483

14,203

473

3.20

3.57

May

427

394

366

335

352

370

338

308

288

275

253

230

210

196

204

178

161

143

135

131

125

119

115

114

106

114

108

96

92

99

101

63483

209

1.41

1.63

June

125

204

159

123

119

112

102

94

87

84

84

115

186

230

Tea

137

123

112

104

94

82

71

62

55

53

51

47

44

41

39

3,100

103

0.696

0.78

July

37

36

33

33

32

31

30

28

26

26

24

22

21

21

21

26

32

29

26 

25

23

23

22

23

19

18

17

19

19

16

15.

773

24.9

0.168

0.19

Aug.

15

19

16

15

17

30

36

49

32

26

89

127

81

67

58

58

76

66

58 

54

48

45

*42

42

40

35

35

32

29

27

26

1,390

44.8

0.303

0.35

Sept.

26

26

25

23

22

22

21

19

18

17

17

18

18

17

16

15

15

15

15 

15

15

14

*14

15

17

16

15

15

16

16

533

17.8

0.120

0.13

Calendar year 1954: Max 3,470 Min 26 Mean 367 Cfsm 2.48 In. 33.70

Water year 1954-55: Max 1,960 Min 14 Mean 256 Cfsm 1.73 In. 23.46

Peak discharge (base, 1,100 efs).--Dee. 19 (3 a.m.) 2,100 cfs (6.88 ft); Feb. 12 (6:30 a.m.) 1, 

cfs (6.27 . ft).. * Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Jan. 12 to Feb. 10.
42 KENNEBEC RIVER BASIN

Moosehead Lake at East Outlet, Maine

Location.--Lat 45°35'10", long 69°42'45", at wharf at east outlet of lake, at Moosehead, 

'Plscataquls County.

Drainage area. 1,240 sq ml, approximately. 

Records available.--April 1895 to September 1955.

Gage.--Staff gage read daily at 7 a.m. Datum of gage is 1,011.48 ft above mean sea level, 

datum of 1929.

Extremes.--Maximum gage height observed during the year, 17.63 ft June 1; minimum observed, 

12.63 ft Apr. 12, 13.

1895-1955: 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 gage 

height 7.0 ft. Lake outlet dredged in 1948 to permit drawing level down to gage height 

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 June, 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 years) .--WSP 1111: 1946-47 (change in contents).

ge height, in feet, at 7 a.m., water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

17.35

17.40

17.46

17.58

17.58

17.53

17.37

17.25

17.23

17.22

17.24

17.28

17.37

17.44

17.47

17.45

17.36

17.23

17.18

17.17

17.15

17.15

17.15

17.15

17.15

17.15

17,15

17.14

17.18

17,27 

17,30

23,089

+97

Nov.

17.37

17.35

17.35

17.35

17.34

17.34

17.34

17.34

17.33

17.31

17.24

17.21

17.19

17.13

17.09

17.07

17.08

17.08

17.10

17.11

17.18

17.25

17.31

17.35

17.35

17.35

17.35

17.36

17.37

17.38

23,347

+258

Dec.

17.38

17.34

17.30

17.25

17.23

17.22

17.15

17.18

17.18

17.24

17.25

17.25

17.25

17.25

17.29

17.37

17.35

17.36

17.38

17.35

17.37

17.37

17.34

17.35

17.35

17.30

17.28

17.25

17.25

17.22 

17.28

23,024

-323

Jan.

17.26

T7T2?

17.22

17.20

17.18

17.18

17.16

17.18

17.18

17.16

17.16

17.15

17.15

17.13

17.12

17.10

17.08

17.08

17.04

17.01

16.95

16.93

16.89

16.84

16.81

16.75

16.69

16.60

16.55

16.47 

16.41

20,224

-2,800

Feb.

16.35

16.29

16.16

16.10

16.02

15.94

15.92

15.87

15.80

15.73

15.65

15.71

15.71

15.68

15.61

15.57

15.54

15.55

15.53

15.47

15.41

15.38

15.38

15.31

15.29

15.22

15.18

15.14

_

16,160

-4,064

Mar.

15.09

15.09

15.02

14.97

14.88

14.85

14.81

14.75

14.67

14.59

14.56

14.52

14.40

14.36

14.31

14.28

14.23

14.16

14.11

13.97

13.89

13.80

13.72

13.65

13.59

13.53

13.46

13.36

13.31

13.25 

13.19

9,978

-6,182

Apr.

13.15

13.07

13.00

12.95

12.88

12.83

12.83

12.75

12.72

12.67

12.67

12.65

12.63

12.64

12.70

12.83

13.01

13.12

13.22

13.40

13.54

13.70

13.83

13.97

14.10

14.24

14.38

14.55

14.72

14.87

15,300

+5,322

May

15.06

15.27

15.45

15.70

16.02

16.37

16.71

16.90

17.09

17.24

17.30

17.33

17.31

17.29

17.37

17.36

17.36

17.36

17.38

17.39

17.39

17.42

17.44

17.47

17.49

17.51

17.48

17.47

17.47

17.60 

17.60

24,059

+8,759

June

17.63

17.57

17.56

17.54

17.55

17.57

17.55

17.50

17.46

17.41

17.41

17.41

17.45

17.50

17.51

17.52

17.50

17.49

17.48

17.46

17.45

17.45

17.44

17.46

17.45

17.50

17.53

17.51

17.49

17.44

23,541

-518

July

17.38

17.34

17.32

17.32

17.28

17.22

17.13

17.07

17.01

16.96

16.93

16.82

16.70

16.61

16.54

16.45

16.55

16.52

16.47

16.37

16.29

16.24

16.15

16.05

15.98

15.89

15.78

15.70

15.66

15.53 

15.45

17,148

-6,393

Aug.

15.33

15.36

15.18

15.09

15.02

14.96

14.85

15.00

14.95

14.89

14.85

14.87

14.85

14.76

14.72

14.71

14.67

14.64

14.64

14.60

14.56

14.56

14. 7O

14.65

14.61

14.57

14.53

14.50

14.46

14.41 

14 .3^

13,678

-3,470

Sept.

U.54

14.30

14.28

14.25

14.23

14.21

14.18

14.17

14.12

14.09

14.05

14.15

14.13

14.13

14.08

14.11

14.05

14.05

14.05

14.06

14.08

14.08

14.06

14.03

14.02

14.01

13.98

13.97

13.98

15.95

12,379

-1,299

Calendar year 1954: 

Water year 1954-55:

+1,450 

-10,613

t Contents, In millions of cubic feet, at end of month. 

t Change In contents in millions of cubic feet.

Note.--Piversions through West Outlet: June, 80 cfs; July, 40 cfs; August, 195 cfs; September, 

567 cfs.
KENNEBEC RIVER BASIN 43

Kennebec River at Moosehead, Maine

Location. Lat 45°35 t 10", long 69"43'10", on right bank an eighth of a mile downstream 

from dam at east outlet of Moosehead Lake and half a mile northwest of Moosehead, 

Piscataquis County.

Drainage area. 1.240 sq mi, approximately. 

Records available. October 1919 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 1,015.53 ft above mean sea level, datum 

of 1929. Prior to Oct. 9, 1924, chain gage on railroad bridge 300 ft downstream 

at same datum.

Average discharge. 36 years, 1,865 cfs.

Extremes. Maximum discharge during year, 13,200 cfs Oct. 16 (gage height, 9.£5 ft); 

minimum, 300 cfs Apr. 17 (gage height, 2.60 ft).

1919-55: Maximum discharge, 15,600 cfs May 8, 1947 (gage height, 9.94 ft); minimum, about 62 cfs Apr. 7-15, 1923.

Remarks. Records excellent. Some water diverted down west channel by leakage and occasional opening of gates in dam at West Outlet. Plow regulated by Moosehead Lake 

(see preceding page) and by Brassua Lake and Second and First Roach Ponds 

(see p. 53).

Revisions (water years). WSP 1301: 1928-50 (adjusted monthly runoff).

Rating table, water year 1954-55 (gage height, in feet, and discharge, 

in cubic feet per second)

2.6 

2.8 

3.0 

3.4 

3.8 

4.5

300

414

542

845

1,240

2,080

5.0 

6.0 

7.0 

8.0 

10.0

2,870

4,840

7,070

9,660

15,800

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

875

1,430

1,680

5,240

8,160

8,440

8,310

5,330

3,860

3,450

2,770

2,800

3,250

4,560

8,780

15 . 100

12 , 900

9,520

4,400

4,180

3,810

3,370

3,040

3,020

3,040

3,080

3,080

2,720

2,530

2,550

2,560

145 , 835

4,704

-128

Nov.

3,740

4,300

4,350

4.590

4,330

4,300

4,300

4,280

4,330

4,300

4,260

4,240

4,220

4,180

3,020

1,710

1,720

1,720

1,720

1,740

1,750

1,760

1,770

2,660

3,240

3,220

2,450

2,410

3,220

3,220

-»----__

96,850

3,228

-204

Dec.

3,220

3,200

3,200

3,170

3,150

2,750

2,080

2,070

2,070

1,800

1,570

1,570

1,570

1,570

1,590

2,080

2,720

2,930

3,900

3,540

3,300

3,300

3,280

2,930

2,970

3,220

3,220

3,260

3,260

3,280

3,240

85,010

2,742

-575

Jan.

5,260

3,260

3,530

3,800

3,780

3,780

3,780

3,800

3,760

3,760

3,760

3,760

3,760

3,740

3,720

3,700

3,700

4,040

4.240

4,200

4,200

4,160

4,120

4,100

4,080

4,040

4,000

3,960

3,920

3,880

3,840

119,430

3,853

-2,726

Feb.

3,800

3,920

4.100

4,060

3,980

3,920

3,920

3,880

3,840

3,780

3,540

3,410

3,370

3,350

3,330

3,540

3,570

3,320

3,280

3,350

3,560

3,520

3,500

3,490

3,450

3,300

3,080

5.040

-

*..___- ...

100,200

3,579

-2,377

Mar.

3.150

3,550

5,280

3,240

3,200

3,170

3,280

3,450

5,390

5,550

3,330

3,280

3,180

3,180

3,210

5,620

5,600

5,720

4.040

5,940

5,860

5,800

5,720

3,640

3,540

5,490

5,450

3,350

3,500

3,240

5,170

106,460

5,434

-2,276

Apr.

3,090

3,060

3,110

3,170

3,220

5,180

5,260

5.280

3,240

3,170

5,050

2,650

2,340

2,150

2,000

920

300

990

810

815

790

620

655

650

672

687

702

718

735

749

__._----

54,741

1,825

+4,701

May

764

780

796

821

865

908

2,230

3,560

5,970

5,930

7 .550

7,550

4,980

3,450

3,200

2,500

2,090

2,160

2,460

2,600

2,380

2,120

2,150

2,180

2,550

2,750

2,550

2,140

2,280

4,420

5,290

89,912

2,900

+4,031

June

4,970

5.380

4,050

2,830

2,350

2,810

3,440

2,070

2,050

1,760

1,560

1,560

1,570

1,900

2,090

2,090

1,820

1,570

2,250

2,080

1,210

1,010

645

ill

540

585

1,230

1,590

2,260

2,650

-----~--

62,377

2,079

-163

July

2,650

2,620

1,630

1.550

2,620

2,600

2,580

2,550

2,530

2,750

5,010

2,940

2,890

2,850

2,820

2,690

2,040

2,510

2,820

2,770

2,750

2,700

2,960

5,110

5,040

3,280

5,410

5,570

5,500

5,220

3,170

85,490

2,758

-2,444

Aug.

5.110

3,090

2,910

2,580

2,470

2,580

2,140

1,310

1,930

2,090

2,110

2,090

2,O8O

2,050

1,870

1,740

1,720

1,710

1,710

1,700

1,700

1,710

1,570

1,060

685

755

1,040

1,030

835

*910

935

55,220

1,781

-1,104

Sept.

915

925

915

973

760

875

895

890

885

830

973

460

880

865

875

735

917

926

926

915

964

954

944

944

944

944

935

1,080

1,510

1.540

28,094

956

-1,000

Adjusted fop change in contents

Mean 

Cf sm 

In.

4,576 

3.69 

4.25

3,024 

2.44

2.72

Calendar year 1954: 

Water year 1954-55:

2,167 

1.75 

2.02

1,127 

0.909 

1.05

1,202 

0.969

1.01

1,158 

0,954 

1.08

6,526 

5.26 

5.87

6,951 

5.59 

6.44

Observed

Max 13,100 Min 241 Mean 2,966 

Max 13,100 Min 500 Mean 2,821

1,916 

1.55 

1.75

514 

0.255 

0.29

677 

C.546 

0.63

-64 

-0.052 

-0.06

Adjusted

Mean 5,245 Cfsm 2.62 In. 55.49 

Mean 2,469 Cfsm 1.99 In. 27.05

Discharge measurement made on this day. 

t Change In contents, equivalent In cubic feet per second, in Brassua and Moosehead Lakes and 

Second and First Roach Ponds; also diversion through West Outlet.
4 KENNEBEC RIVER BASIN

Kennebec River at The Forks, Maine

Location. -Lat 45 0 20'35", long 69 0 57'45", on right bank at The Forks, Somerset County, 

half 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 1955.

Gage.--Water-stage recorder. Datum of gage is 569.03 ft above mean sea level, datum 

of 1929. Prior to June 21, 1912, chain gage and June 21, 1912,to Oct. 17, 1919, 

water-stage recorder and chain gage, at highway bridge half a mile downstream at 

different datum.

Average discharge . 54 years, 2,549 cfs (unadjusted).

Extremes. Maximum discharge during year, 17,000 cfs Oct. 15 (gage height, 9.72 ft); 

minimum, 257 cfs Sept. 14 (gage height, 1.46 ft).

1901-55: Maximum discharge, about 23,700 cfs June 18, 1917 (gage height, 10.1 ft, 

site then in use); minimum, 85 cfs Sept. 3, 1953 (gage height, 1.02 ft).

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

record, which are fair. Flow regulated by Moosehead Lake (see p. 42), Brassua Lake, 

Moxie, Indian, Second, and First Roach Ponds (see p. 53).

Revisions (water years). WSP 198: Drainage area. WSP 1231: 1902-4, 1906-8, 1912, 

1914, 1919-201M), 1923(M), 1926(M), 1928-29(M), 1936(M), 1938 (Jf). WSP 1301: 1928- 

35 (adjusted monthly runoff).

Rating table, water year 1954-55, except period of Ice effect ( 

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

503

571

985

1,550

2,270

4.0 

5.0 

7.0 

9.0 

10.0

3,170

5,360

10,600

15,600

17,600

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

725

1,840

2,640

6,240

11,000

11,000

10,700

10,100

6,320

4,630

2,240

2,400

3,240

6,150

9,480

16.000

16,000

14,200

8,460

4,560

4,390

4,090

4,100

3,820

4,090

4,280

4,290

4,470

4,590

4,790

4,390

195,225

6,298

-201

Nov.

3,410

5,120

6,120

6,850

7.070

7,020

6,430

5,480

5 , 800

5,280

5,300

5,300

5,310

5,380

4,240

3,030

2,530

2,310

2.240

2,410

2,770

3,250

2,970

3,120

4,720

4,280

3,370

3,250

3,680

3,680

131,720

4,391

-163

Dec.

4,450

3,890

3,890

4,150

4,040

3,500

3,200

2,900

3,080

3,120

2,730

2,500

2,330

2.240

2,490

2,740

3,460

4,080

4,760

4.800

4,370

3,860

4,010

3,740

3,600

3,700

4,010

3,800

3,780

3,660

3,660

110,540

3,566

-658

Jan.

5.500

4,010

3,800

3,990

4,100

4,300

4,260

4,210

4,410

4,340

4,410

4,340

4,300

4,170

4,100

4.800

4,150

4,100

4,590

4,500

4,500

4,500

4,390

4,410

4,410

4,320

4,300

4,300

4,320

4,100

4,410

132,340

4,269

-2,881

Feb.

4,460

4,230

4,320

4,500

4.620

4,100

4,300

4,210

4,100

4,190

4,100

3,400

3,280

4,010

3,840

3,640

4,010

3,800

2.870

3,400

3,950

4,060

3,860

3,780

3,500

3,250

3,460

3,700

-

108,940

3,891

-2,391

Mar.

3,700

3,680

3,700

3,566

3,600

3,060

3,800

3,990

4,010

3,930

3,790

2,650

3,140

4,310

3,890

*3,760

4,040

4,140

4,460

4.660

4,440

4,210

4,200

4,300

4,410

3,520

4,030

4,430

4,170

4,150

5,900

121,590

5,922

-2,296

Apr.

3,380

2,760

3,020

4,170

5,790

4,120

4,750

4,650

4,530

3,740

4,980

4,790

4,560

4,340

5,020

5,160

4,040

4,290

4,640

4,160

4,020

5,690

5,160

2,400

4,550

5,560

5,160

2,800

2,760

2,590

117,160

5,905

+4,982

May

1.760

3,660

3,240

3,270

4,540

4,680

2,670

5,730

6,080

7,440

9.940

9,570

6,940

4,880

4,490

3,960

3,000

2,880

3,050

5,160

2,820

2,340

3,130

3,560

2,970

5,740

3,180

3,150

3,260

5,100

6,160

154,130

4,327

+4,055

June

5,950

6.650

5,650

4,210

2,980

3,810

3,880

3,400

2,590

2,510

1,950

1,420

3,020

2,710

2,990

2,880

2,510

1,480

1,560

1,660

1,870

1,590

1,050

560

909

837

2,750

2,560

2,680

2,710

81,086

2,703

-229

July

2,700

2,700

1^610

2,010

2,640

2,840

2,860

3,280

3,340

2,870

5,670

5,160

3,250

3,180

3,160

3,200

2,660

5,000

5,280

5,210

2,980

5,220

5,240

2,820

5,210

3,200

3,260

4.050

3,700

3,500

2,800

94,380

3,045

-2,521

Aug.

3,720

4.080

2,900

2,870

2,670

5,120

2,850

1,960

2,180

2,540

2,920

2,450

2,690

2,640

1,940

2,460

2,100

2,150

2,150

1,940

1,920

2,400

2,050

2,010

1,150

1,640

1,760

1,940

1,620

1,500

1,520

71,820

2,517

-1,306

Sept.

1,660

1,470

1,520

1,510

1,500

1,540

1,490

1,530

1,330

1,440

1,640

1,550

*1.270

1,410

2,110

2,220

2,100

1,800

1,860

1,690

1,800

1,820

1,850

1,650

1,770

1,620

1,640

1,740

2,260

2.550

51,140

1,705

-1,738

Adjusted for change In reservoir contents

Mean 

Cf sm 

In.

6,097 

3.88 

4.47

4,226 

2.6 

3.0C

Calendar year 1954: 

Water year 1954-55:

2,908 

1.85 

> 2.13

1,588 

0.884 

1.02

1,500 

0.955 

0.99

1,626 

1.04 

1.20

8,887 

5.66 

6.52

8,582 

5.54 

6.16

Observed

Max 17,300 Mln 186 Mean 3,957 

Max 16,000 Min 560 Mean 5,699

'2,474 

1.58 

1.76

524 

0.334 

0.39

1,011 

0.644 

0.74

-33

-0.021 

-0.02

AdJ asted

Mean 4,270 Cfsnt 2.72 in. 36.78 

Mean 3,257 Cfsrr 2.07 In. 28.16

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second, In Brassua and Moosehead Lakes, and 

Second Hoach, First Hoach, Indian, and Moxle Ponds.

N o t e_. Stage-discharge relation affected by ice Dec. 19 to Mar. 10. No gage-height record 

Dec. 6-14, May 29 to June 2; discharge estimated on basis of records for Harris Station.
KENNEBEC RIVER BASIN 

Dead River near Dead River, Maine

45

Location. Lat 45°13'48", long 70°11'58", T. 3, R. 4, Somerset County, on right bank, 

at foot of Long Palls, 0.3 mile upstream from Black Brook and 0.5 mile downstream 

from Flagstaff Lake Dam.

Drainage area.--520 sq mi.

Records available. October 1939 to September 1955. Prior to December 1939, monthly 

discharge only, published in WSP 1301.

Qa£e.--Water-stage recorder. Datum of gage is-1,037.32 ft above mean sea level, datura

Average discharge. 16 years, 812 cfs (unadjusted).

Extremes. Maximum discharge during year, 8,270 cfs May 6 (gage height, 9.47 ft): minimum daily, 138 cfs June 19, July 14.

1939-55: Maximum discharge, 18,000 cfs Sept. 12, 1954 (gage height, 11.50 ft): 

no flow for part of July 31, 1949, when flow was completely shut off by cofferdam 

during construction of Flagstaff Lake dam.

Remarks. Records good. Flow regulated by Flagstaff Lake (see p. 53)_

Rating tables, water year 1954-55 (gage height In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Nov. 4 Nov. 5 to Sept. 50

4.8 

5.0 

5.5 

6.0

169

235

465

780

7.0 

8.0 

9.0

1,830

3,600

6,240

4.6 

5.0 

5.5

6.0

123

240

475

835

7.0 

8.0 

9.0 

9.4

1,960 

3,80C 

6,600 

8,000

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

2,790

2,030

2,000

815

221

224

220

225

230

230

1,360

5.240

2,940

1,000

198

745

2,330

1,820

1,020

1,020

1,020

655

532

755

1,270

1,460

1,470

1,490

1,470

630

258

35,668

1,151

+365

Nov.

1,170

1,750

2,000

4,400

5.180

4,920

2,420

855

722

722

395

204

204

925

1,840

3,320

3,490

3,340

1,660

840

2,280

930

214

220

224

224

227

455

1,400

1,660

48,191

1,606

-348

Dec.

1,650

1,620

1,600

1,590

1,640

1,850

2,730

2,900

3,000

1,750

1,800

3,000

4.150

3,960

3,070

1,770

1,320

1,310

620

146

146

148

148

148

148

148

148

148

148

151

535

43,472

1,402

-574

Jan.

1.570

1,370

1,370

890

610

617

610

617

610

610

610

610

610

610

1,100

1,370

1,360

1,360

1,340

1,360

1,340

1,330

1,330

1,330

1,330

1,320

1,320

1,310

1,310

1,300

1,300

33,524

1,081

-661

Feb.

1,300

1,290

1,290

1,600

1.B90

1,860

1,500

1,250

1,250

1,240

1,230

1,230

1,230

1,220

1,200

1,200

1,200

1,190

1,180

1,180

1,170

1,160

1,160

1,160

1,160

1,150

1,150

1,140

-

35,780

1,278

-912

Mar.

1,130

1,140

1,140

1,130

1,130

1,120

1,110

1,100

1,090

1,080

1,070

1,060

1.560

1,340

1,320

1,300

1,300

1,300

1,290

1,280

1,280

1,260

1,260

1,250

1,250

1,070

965

956

956

956

1,070

36,063

1,163

-712

Apr.

1,210

1,200

,190

,190

,180

,210

.550

1,530

1,330

1,330

1,010

*360

596

407

560

195

185

188

201

198

166

148

151

156

162

168

170

176

185

198

17,680

589

+2,980

May

214

1,780

2,960

3,930

4,990

7,090

7.950

5,030

3,810

2,740

1,640

1,450

610

705

1,590

1,560

1,570

1,510

1,090

386

665

245

465

425

750

1,060

1,010

815

725

518

510

59,353

1,915

+237

June

885

*1,100

1,080

870

780

1,030

1,200

1,100

1,060

470

1,210

1,900

1,850

1,120

2,070

2,050

2,180

2,610

158

2,580

145

2,610

2,450

2,320

170

2,840

146

148

148

148

58,386

1,280

-480

July

148

151

151

151

151

151

151

151

151

151

148

2.120

2,080

158

140

140

140

140

140

174

146

146

145

140

140

140

140

140

140

350

494

8,986

290

-208

Alg.

487

450

481

481

481

481

455

590

360

487

400

350

475

475

695

894

894

903

903

894

886

886

886

894

886

886

886

1,280

1,640

1,970

2,220

2*-, 936

804

-394

Sept.

2,450

2,550

2,580

1,970

1,460

2,040

1,950

1,820

1,720

1,620

1,520

1,450

*1,660

1,920

1,860

1,820

1,780

1,550

1,010

2,010

2,450

1,140

720

1,340

2,060

1,350

1,270

1,170

1,160

1,270

50,410

1,68O

-1,655

Adjusted for storage in| Flagstaff Lake

Mean 

Cf sm 

In.

1,516 

2.92 

3.37

1,25! 2.4' 

2.7(

Calendar year 1954: 

Water year 1954-55:

) 828 

' 1.59 

) 1.83

420 

0.808 

0.95

566 

0.704 

0.73

451 

0.867 

1.00

3,569 

6.86 

7.65

2,152 

4.14 

4.77

Observed

Max 12,400 Mln 61 Mean 1,270 

Max 7,950 Mln 158 Mean 1,185

800

1.54 

1.72

82 

0.158 

0.18

410 

0.788 

0.91

45 

0.087 

0.10

Adjusted

Mean 1,322 Cfsm 2.54 In. 34.53 

Mean 992 Cfsm 1.91 In. 25.89

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second, In Flagstaff Lake.

Note. No gage-height record Oct. 7-16, Dec. 8-13; discharge estimated on basis of once-daily 

gage-height readings and record of gate openings In dam Just upstream.
6 KENNEBEC RIVER BASIN

Dead River at The Porks, Maine

Location. Lat 45°21'00", long 69°59'30", on left bank ij miles northwest of The Porks, 

Somerset County, and 1^ miles upstream from mouth.

Drainage area. 872 sq mi.

Records available. September 1901 to August 1907, March 1910 to September 1955. 

Monthly discharge only for some periods, published in WSP 1301.

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. 50 years (1902-7, 1910-55), 1,421 cfs (unadjusted).

Extremes.--Maximum discharge during year, 13,400 cfs May 7 (gage height, 7j35 ft); min-

 imum daily, 196 cfs July 26, 27.

1901-7, 1910-55: 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; 

54 cfs Sept. 27, 1941 (gage height, 1.50 ft).

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

Plow partly regulated by Flagstaff and Spencer Lakes (see p. 53).

Revisions (water years). WSP 801: Drainage area. WSP 1231: 1913-15, 1916-17(M),

 1919-20(M), 1922(M). WSP 1301: 1904(M), 1907, 1911-12.

Rating table, water year 1954-55, except period of ice effect (gage 

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

3.5

153

270

610

1,380

2,200

3,200

5,660

8,640

12,000

16,000

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

&

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

( + )

Oct.

3,580

3,180

2,900

3,130

2,010

1,610

1,320

1,140

1,010

919

1,300

3,600

4.860

3,810

1,780

2,060

4,400

4,330

2,960

2,420

2,240

1,890

1,470

1,480

1,830

2,250

2,380

2,810

2,770

2,380

1,630

75,449

2,434

+308

Nov.

1,910

2,920

3,220

5,900

7.010

6,900

6,060

3,320

1,960

*1,670

1,460

1,060

969

1,050

2,030

3,260

4,330

4,400

3,960

1,770

3,070

3,280

1,780

1,350

1,180

1,090

995

919

1,550

2,170

82,543

2,751

-376

Dec.

2,170

2,080

2,030

2,030

2,010

2,150

2,690

3,290

3,400

3,200

2,290

2,340

3,090

4,040

4.110

3,240

2,170

1,960

1,940

1,180

520

420

390

370

565

365

365

365

370

430

635

56,005

1,807

-651

Jan.

1.580

1,560

1,550

1,180

970

905

895

895

895

895

905

905

*905

945

1,350

,550

,560

,550

,530

,530

,530

,530

,530

,520

,520

,520

,500

,500

,500

,500

,480

40,685

1,312

-661

Feb.

,470

,460

,530

,840

,940

.960

,810

,560

,520

,500

,470

,440

,410

,400

* ,380

,320

,300

,270

,250

,240

,240

,230

,230

,230

.210

,210

,210

,210

_

________

39,840

1,432

-912

Mar.

,210

,210

,200

,200

,200

,180

,180

,170

,170

.160

,160

,250

,470

.670

,630

* ,590

,550

,550

,520

,500

,480

,480

,500

,480

,480

,400

,180

,160

,170

,160

, 160

41,420

1,336

-712

Apr.

1.410

1,470

1,440

1,470

1,560

1,710

2,010

2,170

2,120

2,100

2,250

1,790

1,930

2,460

4,180

6.260

4,420

3,510

4,040

3,810

3,220

2,710

2,650

2,670

2,480

2,400

2,420

2,290

2,060

2,670

________

77,680

2,589

+3,227

May

3,490

3,700

5,120

6,320

8,110

11,000

12.200

9,980

7,370

6,550

3,790

3,240

2,130

1,860

2,400

2,400

2,460

2,240

1,940

1,110

1,070

1,260

1,140

1,080

1,790

1,810

1,340

1,320

855

1,110

1,020

111,235

3,588

+212

June

1,010

1,580

1,550

1,500

1,010

1,340

1,460

1,390

1,390

875

1,270

2,210

2,250

1,710

2,590

2,630

2,890

2,910

510

2,570

520

2,850

2,820

2,700

560

5.080

655

570

474

404

________

49,278

1,643

-454

July

356

335

326

326

312

284

277

270

257

251

245

2,040

2.120

Hz

258

257

291

277

251

270

251

220

207

207

207

196

196

202

215

232

501

12,025

388

- 218

Aug.

520

474

560

540

530

530

621

560

465

621

712

678

819

712

747

,100

,130

,140

,230

,180

,110

,140

,180

,160

,090

,030

,010

,160

,690

1,780

2.490

29,709

958

-385

Sept.

2,420

2,630

2,480

2,270

1.540

2,100

1,980

1,840

1,710

1,640

1,550

1,500

*1,580

1,960

2,050

2,220

2,170

2,050

1,580

1,940

2.790

1,800

2,510

1,540

2,050

1,650

1,550

1,450

1,580

1,410

56,700

1,890

-1,736

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

2, 742 

5.14 

5.62

2,575 

2.72 

5.04

Calendar year 1954: 

Water year 1954-55:

1,156 

1.53

1.53

651 

0.747 

0.86

511 

0.586

0.61

624 

0.716 

0.83

5,816 

6.67

7.44

3,800 

4.36 

5.05

Observed

Max 11,800 Min 305 Mean 2,163 

Max 12,200 Min 196 Mean 1,843

1,189 

1.36 

1.52

170 

0.195 

0.22

573 

0.657 

0.76

154 

0.177 

0.20

Adjusted

Mean 2,215 Cfsm 2.54 In. 34.49 

Mean 1,649 Cfsra 1.89 In. 25.66

* Discharge neasurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Flagstaff and Spencer Lakes

Note. Stage-discharge relation affected by ice Dec. 21 to Mar. 12.
KENNEBEC RIVER BASIN 47

Austin Stream at Bingham, Maine

Location. La t 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 1955.

~~Gage. Water-stage recorder. Datum of gage is 350.14 ft above mean sea level, datum of 

Average discharge. 24 years, 173 cfs.

Extremes. Maximum discharge during year, 1,790 cfs Apr. 16 (gage height, 9.04 ft); 

minimum not determined, occurred during period of no gage-height record Se^t. 10-30.

1931-55: Maximum discharge, 5,820 cfs Sept. 17, 1932, Nov. 27, 1950; maximum 

gage height, 17.63 ft Mar. 13, 1936 (backwater from ice jam); minimum discharge, 

1.6 cfs Sept. 30, Oct. 1, 1948.

Remarks . Records good except those for periods of ice effect or no gage-heigbt record, 

which are fair.

Revisions. WSP 1171: Drainage area.

Rating tables, water year 1954-55, except periods of Ice effect (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Apr. 16 17 to June 29 June 30 to Sept. 30

5.6 43

5.8 70

6.0 105

6.5 228

7.0 410

7.5 655

8.0 950

8.5 1,320

9.0 1,750

5.6 58

5.8 92

6.0 140

6.5 305

7.0 540

7.5 860

8.0 1,280

8.5 1,770

5.6 

5.8 

6.0

5.0

10

19

34

54

6.2

7.0

7.2

126

220

355

479

Discharge, In cubic feet per second, water year October 1954 to September 1S55

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

153

173

196

519

485

350

262

211

183

168

168

262

273

*231

189

1,050

1.190

640

414

323

269

231

202

181

163

166

222

390

346

394 

390

10,394

335

3.68

4.24

Nov.

350

319

440

777

595

410

326

273

240

*211

189

176

154

149

138

126

122

120

124

166

440

699

476

330

259

222

194

172

160

150

8,507

284

3.12

3.48

Dee.

142

130

124

116

110

106

99

90

86

83

80

76

73

*7092"

132

199

420

1.610

1,060

611

406

305

255

200

178

162

148

132

126 

120

7,541

243

2.67

3.08

Jan.

110

106

106

102

100

99

97

96

94

90

88

*86

86

86

86

84

84

83

81

80

75

72

72

70

70

70

69

69

66

64

63.

2,604

84.0

0.922

1.06

Feb.

62

60

57

56

56

56

55

56

55

56

73

199

548

315

*260

220

190

156

138

122

109

105

120

171

189

196

159

132

-

-----

3,971

142

1.56

1.62

Mar.

128

124

122

112

111

108

105

110

110

105

103

124

126

128

124

*107

111

116

112

100

90

88

88

90

92

94

88

86

86

86 

105

3,279

106

1.16

1.34

Apr.

138

149

140

163

219

293

381

373

330

315

414

481

499

622

1,120

1,710

1.720

1,290

1,380

1,610

1,280

940

811

755

690

708

734

672

630

*636

21,203

707

7.76

8.66

May

618

594

558

534

910

1.250

846

648

594

564

465

379

309

279

272

239

208

180

162

143

130

114

107

107

114

246

229

168

143

205 

755

12,050

389

4.27

4.92

June

*720

576

407

313

305

272

225

183

151

132

117

140

426

366

263

201

162

13£

110

92

88

87

88

74

71

76

88

71

103

5!

6,096

203

2.23

2.49

July

61

64

60

54

52

43

34

33

32

27

25

21

20

19

19

31

57

44

34

28

24

20

20

19

18

18

18

18

18

18 

18

967

31.2

0.342

0.39

Aug.

18

18

17

17

17

18

27

74

50

33

26

27

25

22

22

134

*119

94

76

53

38

40 479

274

154

94

62

47

38

31

2,170

70.0

0.768

0.89

Sept.

24

20

19

10

18

18

18

17

17

17

15

13

*11

11

11

11

11

10

10

10

8.8

7.5

6.3

6.5

6.6

6.8

6.8

6.8

6.9

7.0

369.0

12.3

0.135

0.15

Calendar year 1954: Max 2,540 Mln 12 Mean 291 Cfsm 3.19 In. 43.41

Water year 1954-55: Max 1,720 Mln 6.3 Mean 217 Cfsm 2.38 In. 32.32

Peak discharge (base 1.200 cfs).--Oct. 16 (5 p.m.) 1,600 efs (8.83 ft); Dee. 19 (1 p.m.) 1,700 cfs 

(8.95 ft); Apr. 16 (6 p/m.) 1,790 cfs (9.04 ft); Apr. 19 (12 p.m.) 1,750 efs (8.48 ft); May 6 

(2 a.m.) 1,330 efs (8.06 ft).

* Discharge measurement made on this day.

Note. No gage-height record Sept. 10-30; discharge estimated on basis of 2 discharge measurements, 

weather records, and records for nearby streams. Stage-discharge relation affected by Ice Nov. 28 to 

Dec. 17, Dec. 23 to Feb. 17, Feb. 28, Mar. 4-10, 18-21, 28, 29 (no gage-height record Dec. 4-14, 

Jan. 28 to Feb. 14; discharge estimated on basis of 2 discharge measurements, weather records, and 

records for nearby streams).
48 KENNEBEC RIVER BASIN 

Kennebec River at Bingham, Maine

Location. Lat 45°03'05", long 69°53'15", on right bank at Bingham, Somers?t County, 

200 ft downstream from highway bridge, half a mile downstream from Austin Stream, and 

if miles downstream from Wyman Dam.

Drainage area. 2,710 sq mi, approximately.

Records available. June 1907 to June 1910, October 1930 to September 1955.

Gage. Water-stage recorder. Datum of gage is 330.2 ft above mean sea level, datum of 

1929. June 1907 to June 1910 chain gage on highway bridge at different datum.

Average discharge.--27 years (1907-9, 1930-55), 4,298 cfs (unadjusted).

Extremes. Maximum discharge during year, 27,200 cfs Oct. 17 (gage height, 11.36 ft); minimum daily, 2,080 cfs July 4.

1907-10, 1930-55: Maximum discharge, 58,800 cfs Mar. 20, 1936 (gage height, 

14.44 ft), from rating curve extended above 27,000 cfs on basis of computation of flow 

at Wyman Dam plus inflow; minimum daily, 110 cfs Dec. 25, 1947.

Remarks.--Records excellent. Flow regulated by Moosehead Lake (see p. 42), Brassua,

Flagstaff, and Spencer Lakes, Second Roach, First Roach, Indian, Moxie and Wyman Ponds 

(see p. 53). Considerable diurnal fluctuation caused by powerplant above station.

Revisions (water years) . WSP 1271: 1951(M) , WSP 1301: 1936(M) .

Rating table, water year 1954-55, except periods of ice effect (gage 

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

6.0 1,910 8.5 10,000

6.5 2,98O 9.0 12,200

7.0 4,510 10.0 17,600

7.5 5,95O 11.0 24,400

8.0 7,790

Discharge, in cubic feet per second, water year October 1954 to September

Day

1

2

5

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28 

29

50

31

Total

Mean

(t)

Oct.

5,620

4,140

5,400

8,810 

15,800

12,900

11,900

10,900

9,120

5,210

7,100

7,510

7,660

7,700

13,300

18,500

25,700

21,100

12,200

8,850

7,250

7,150

5,680

4,250

7,140

6,970

7,050 

7,440 

7,730

7,790

7,080

288,890

9,319

+279

Nov.

7,830

7,590

9,720

14,200 

14,100

15 , 100

12 , 100

9,840

7,140

7,490

6,600

7,160

5,950

5,140

a, 850

6,970

7,110

7,020

7,160

4,240

4,950

7,950

7,210

6,920

5,670

5,190

5,050 

5,930 

6,860

6,430

227,450

7,582

-635

Dec.

6,510

6 , 570

6,540

5,520 

4,420

b6,000

b5,800

b6,100

6,510

6,220

5,830

4,230

5,940

*6,450

6,400

6,520

6,500

6,240

10,600

8,910

8,190

6,460

6,610

5,060

4,080

4,740

6,290 

6,300 

5,910

6,100

4,730

189,660

6,118

-1,373

Jan.

4,550

4,710

6,130

5,960 

6,060

6,000

5,940

4,790

4,060

6,260

5,800

5,700

5,940

6,510

5,420

4,710

6,440

6,560

6,250

6,490

6,960

5,560

5,090

6,350

6,450

6,250

6,520 

6,960 

5,580

4,640 7 3OC

181,740

5,863

-5,568

Feb.

6,590

5,950

b5,900

b5,900 

5,640

4,560

5,770

b5,500

b5,400

5,260

4,960

5,780

b4,700

b5,500

6,520

5,970

5,620

5,660

4,790

4,490

6,170

5,820

6,200

5,580

5,640

4,820

5,590 

6,120

 

155,780

5,564

-5,158

Mar.

5,750

5,350

6,040

5,870 

4,530

4,730

5,700

5,870

5,580

5,290

5,080

4,450

4,700

5,680

5,250

5,470

5,540

5,500

4,640

5,960

6,260

6,050

5,600

5,550

5,160

6,000

4,510 

5,890 

5,450

5,480 

5, 380

167,710

5,410

-3,045

Apr.

5,320

4,67O

4,100

5,920 

5,600

5,710

5,750

7,160

7,150

6,520

8,340

7,860

7,530

8,750

13,300

16,600

12,900

10,600

12,100

11,300

9,930

8,650

8,160

6,360

8,280

8,080

7,570 

7,500 

6,980

6,120

244,190

8,140

+8,228

May

5,280

8,240

9,420

10,300 

14,500

17,800

15,800

16,600

13 , 700

15,000

14,000

15,200

9,780

7,010

7,250

7,460

6,150

6,170

5,540

4,780

3,760

4,250

4,000

4,210

4,490

6,580

6,160 

5,050 

5.040

5,550

8, 220

260,850

8,415

+4,319

June

8,050

*9,410

7,950

6,580 

4,270

5,590

5,920

5,710

4,280

4,250

5,890

5,160

5,590

6,190

5,400

5,910

5,960

4,580

3,340

3,690

5,550

3,550

3,470

5,510

5,070

5,100

5,400 

5.000 

5,570

3,320

142,640

4,755

-756

July

3,500

5,240

2,200

2,080 

5,430

5.470

3,390

3,470

3,470

3,220

5,350

5,550

3,530

3,600

3,290

5,510

5,540

3,550

3,310

3,620

3,390

5,540

3 , 460

5,590

3,370

3,740

3,730 

3,470 

3,460

3,460 

5,530

104,640

5,375

-2,750

1955

Aug.

5,550

5,690

3,550

3,490 

5,900

3,580

5,150

3,580

3,340

3,460

3,220

3,340

3,450

3.020

3,550

5,480

5,320

3,420

3,430

3,450

3,340

3,070

3,650

3,470

3,260

3,490

3,310 

3,490 

3,900

3,810 

3,800

107,140

3,456

-1,746

Sept.

3,850

3,570

3,760

3,490 

2,250

3,680

3,500

3,500

3,480

3,490

3,550

3,440

3,770

3,700

3,830

3,890

3,490

3,520

3,870

3,870

3,970

3,820

4,040

3,500

3,770

4,060

4,060 

4.120 

3^950

3,890

110,680

3,689

-3,509

Adjusted for change in reservoir contents

Mean 

Cf am 

In.

9,598 

3.54 

4.08

6,947 

2.56 

2.86

Calendar year 1954: 

Water year 1954-55:

4,745 

1.75 

2.02

2,295 

0.847 

0.98

2,426 

0.895 

0.93

2,365 

0.873 

1.01

16,370 

6.O4 

6.74

12,730 

4.70 

5.42

Observed

Max 29,700 Mln 2,080 Mean 6,820 

Max 23,700 Mln 2,080 Mean 5,976

3,999 

1.48 

1.65

625 

0.251 

0.27

1,710 

0.631 

0.73

180 

0.066 

0.07

Adjusted

Mean 7,188 cfsm 2.65 In. 36.02 

Mean 5,339 Cfsm 1.97 In. 26.76

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Brassua, Moosehead, Flagstaff, and 

Spencer Lakes, Second and First Roach, Indian, Moxie and Wyman Ponds. 

b Stage-discharge relation affected by ice.
KENNEBEC RIVER BASIN 49 

Carrabassett River near North Anson, Maine

Location. Lat 44°52 I 00", long 69°57 I 10", on left bank 3 miles upstream from Kill Stream 

and North Anson, Somerset County.

Drainage area. 354 sq mi.

Records available.--November 1901 to May 1907, August 1925 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 303.3 ft above mean sea level, datum of 

1929. Nov. 1, 1901, to May 5, 1907, chain and rod gages 1 mile upstream at different 

datum.

Average discharge.--34 years (1902-6, 1925-55), 697 cfs.

Extremes.--Maximum discharge during year, 17,100 cfs Oct. 16 (gage height, 15.06 ft); 

minimum, 49 cfs Sept. 23 (gage height, 2.49 ft).

1925-55: Maximum discharge 30,800 cfs Mar. 19, 1936 (gage height, 21.17 ft); 

minimum, 18 cfs Oct. 29, 1929 (gage height, 2.02 ft).

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

Some regulation at low flow by mills above station.

Revisions (water years).--WSP 851: Drainage area. WSP 1231: 1904-7, 1928(M), 1932(M) 

1936(M) , 1938(M), 1944(M), 1950(M).

Rating table, water year 1954-55, except periods of ice effect 

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

(gage

2.5 

2.8 

3.1 

3.5 

4.0

150

265

460

5.0

6.0

8.0

10.0

11.0

1,070

2,020

4,530

7,670

9,400

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

541

563

635

2,310

1,890

1,280 

979

811

721

667

750

1,170

958 

823

721

8,170 

6,230

3,220

2,040

1,360

1,130

817

763

715

667

691

980

1,970

1,410

1,720 

1,630

48,332

1,559

4.40

5.07

Nov.

1,430

1,370

2,230

5,840

2,800

1,910 

1,300

930

888

*817

757

739

673 

637

613

552 

552

541

557

745

1,890

3,000

1,900

1,330

909

823

757

721

787

888

38,866

1,296

3.66

4.08

Dec.

775

673

619

526

520

495 

485

480

500

505

470

450

*445 

410

855

1,860 

1,150

2,710

6,070

3,630

2,200

1,250

1,130

980

890

825

780

780

810

835 

845

34,953

1,128

3.19

3.68

Jan.

825

795

735

705

675

645 

615

585

555

540

515

500

495 

475

460

450 

445

*445

425

420

410

395

385

380

370

360

355

345

340

330 

 320

15,295

493

1.39

1.60

Feb.

310

310

305

300

300

295 

305

320

330

325

350

505

615 

*575

545

500 

470

450

410

390

380

400

460

530

585

555

530

505

_

------

11,855

423

1.19

1.24

Mar.

480

460

450

425

410

400 

385

380

385

390

450

530

585" 615 

*525

480 

480

480

470

440

420

385

380

370

355

355

350

345

320

345 

420

13,265

428

1.21

1.40

Apr.

615

855

865

890

1,050

1,360 

1,730

1,720

1,860

2,170

2,940

3,050

2,710 

3,260

7,800

7,960 

4,920

3,750

4,480

*4,780

3,580

2,760

2,570

2,120

1,710

2,260

2,520

2,110

1,910

2,020

82,325

2,744

7.75

8.65

May

1,980

1,890

1,930

1,940

3,900

4,450 

2,740

2,420

2,450

1,950

1,390

1,040

972 

916

881

823 

787

679

607

574

521

478

478

526

635

2,080

1,150

799

679

860 

757

43,262

1,396

3.94

4.54

June

1,120

1,130

847

691

727

673 

541

469

418

378

406

480

1,690 

1,270

944

7O9 

568

478

402

362

351

378

378

335

297

320

394

331

290

251

17,628

588

1.66

1.85

July

222

193

190

174

167

150 

141

128

108

103

106

97

95 

94

95

108 

231

164

128

116

104

94

77

73

76

76

80

84

87

70

6J.

3,692

119

0.336

0.39

Aug.

73

99

128

90

82

74 

108

425 238~

148

130

143

137 

122

164

205 

294

225

245

201

162

152

177

331

228

177

141

128

120

108

101

5,156

166

0.469

0.54

Sept.

99

94

77

73

69

74 

76

71

69

59

57

68

*76 

70

70

71 

62

54

60

61

60

58

59

53

53

68

69

64

70

73

2,037

67.9

0.192

0.21

Calendar year 1954: Max 13,300 Min 164 Mean 1,209 Cfsm 3.42 In. 46.35

Water year 1954-55: Max 8,170 Min 53 Mean 868 Cfsm 2.45 In. 33.25

Peak discharge [base, 6,000 cfs).--Oct. 16 (6 p.m.) 17,100 cfs (15.06 ft); Nov. 4 (3 a.m.) 8,740 

fs (10.63 ft); Dec. 19 (11:30 a.m.) 7,740 cfs (10.04 ft); Apr. 16 (3 a.m.) 9,490 cfs (11.05 ft); 

pr. 19 (11:30 p.m.) 6,420 cfs (9.22 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 5-19, Dec. 24 to Apr. 9.
50 KENNEBEC RIVER BASIN

Sandy River near Mercer, Maine

Location. Lat 44°42'30", long 69°56'25", on right bank 0.9 mile upstream from Bog Stream, 

3 miles north of Mercer, Somerset County, and 9-| miles upstream from mcuth.

Drainage area. 514 sq mi.

Records available.--October 1928 to September 1955.

Gage. Water-stage recorder. Datum of gage is 197.1 ft above mean sea level, datum of 

1929.

Average discharge. 27 years, 932 cfs.

Extremes. Maximum discharge during year, 15,500 cfs Oct. 17 (gage height, 10.82 ft); 

minimum, 38 cfs Sept. 22 (gage height, 2.28 ft).

1928-55: Maximum discharge, 38,600 cfs Mar. 19, 1936 (gage height, 16.75 ft), from 

rating curve extended above 12,000 cfs on basis of records for stations on Kennebec 

River at Bingham and Waterville, Carrabassett River near North Anson, and Sebasticook 

River near Pittsfield; minimum, 32 cfs Sept. 22-26, 1939 (gage height, 2.15 ft).

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

Some regulation at low flow by mills above station.

Revisions (water years) . WSP 756: 1933. WSP 801: Drainage area. WSP 1231: 1936(M) .

Rating table, wate 1954-55, except periods of ice effect (gage

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

2.5 

2.5 

2.8 

3.0 

3.5 

4.0

32

111

160

352

650

4.5 

5.0 

6.0 

7.0 

8.0 

9.0 

10.0

1,040

1,540

2,960

4,920

7,270

9,950

12,900

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

795

728

742

2,320

2,860

1,830

1,300

1,080

989

931

891

1,350

1,310

1,050

939

*5,960

9,260

3,520

2,520

2,020

1,660

1,390

1,220

1,100

972

972

1,180

2,440

1,780

2,260

2,140

59,509

1,920

3.74

4.31

Nov.

1,860

1,920

2,740

6,940

3,400

2,400

1,980

1,660

1,500

1,300

1,180

1,130

1,060

955

923

867

851

851

875

1,140

3,130

4,110

2,450

1,880

1,540

1,360

1,230

1,150

1,280

1,700

55,362

1,845

3.59

4.00

Dee.

1,410

1,120

965

860

760

705

665

645

650

665

715

665

635

610

*1,480

2,660

1,690

1,670

9,350

3,910

2,600

1,920

1,560

1,360

1,210

1,080

1,000

965

1,020

1,030

990

46,565

1,502

2.92

3.37

Jan.

940

905

865

825

780

735

705

665

635

610

570

560

*525

510

485

460

450

420

410

400

390

375

365

355

345

340

335

320

315

310

505

16,210

523

1.02

1.18

Feb.

300

300

295

295

290

290

305

340

375

405

500

650

915

1,130

1,060

*885

825

780

760

750

715

720

790

875

965

955

900

860

-

lb,230

651

1.27

1.32

Mar.

860

875

810

740

730

735

740

720

690

685

730

820

915

965

885

825

*845

885

890

845

795

790

805

875

925

915

915

955

1,020

1,090

1,220

26,495

855

1.66

1.91

Apr.

1,460

1,790

1,780

1,860

1,990

2,340

3,100

2,720

2,850

3,060

4,340

5,340

4,280

4,180

7,270

10,200

6,150

4,320

4,450

5,990

4,060

5,180

2,800

2,780

2,500

2,990

3,800

3,130

2,400

2,230

109,140

3,638

7.08

7.90

May

2,160

2,020

1,920

1,880

2,680

6,050

3,210

2,330

2,830

2,260

1,740

1,430

1,240

1,130

1,080

989

899

819

742

685

637

570

532

514

640

2,420

1,310

867

755

1,340

1,110

48,770

1,573

3.06

3.53

June

1,970

1,980

1,250

939

867

*867

713

603

526

479

545

625

2.670

1,870

1,410

1,030

827

685

577

502

479

502

558

514

422

473

583

508

479

589

-- -- -

25,842

861

1.68

1.87

July

342

3O4

273

253

223

203

193

172

172

160

144

134

125

118

113

125

150

213

166

134

113

107

96

92

89

79

76

78

78

87

87

4,699

152

0.296

0.34

Aug.

78

78

76

87

87

86

96

166

291

197

157

203

223

193

166

187

203

260

216

234

193

152

132

127

152

157

132

111

98

90

87

4,715

152

0.296

0.34

Sept.

8986'

81

78

74

62

60

59

61

78

67

61

57

*54

53

51

50

50

49

49

44

40

39

40

41

41

40

43

46

47

1,690

56.3

0.110

0.12

Calendar year 1954: Max 17,900 Min 169 Mean 1,636 cfsm 3.18 In. 43.16

Water year 1954-55: Max 10,200 Min 39 Mean 1,143 Cfsm 2.22 In. 30.19

Peak discharge (base. 6,000 cfs).--Oct. 17 (l a.m.) 15,500 cfs (10.82 ft); Nov. 4 (8 a.m.) 8,470 

cfs (8.46 ft)j Dec. 19 (9 a.m.) 11,700 cfs (9.60 ft); Apr. 16 (8 a.m.) 11,800 cfs (9.62 ft); Apr. 2 

(9 a.m.) 7,100 cfs (7.93 ft); May 6 (7 a.m.) 6,970 cfs (7.88 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 3-15, Dec. 23 to Apr. 9.
KENNEBEC RIVER BASIN 51

Sebastlcook River near Plttsfleld, Maine

Location. Lat 44°42'55", long 69°24'55", on right bank if- miles upstream froii Twentyfivemile Stream and 4 miles south of Pittsfield, Somerset County.

Drainage area. 579 sq mi.

Records available.--October 1928 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 133.9 ft above mean sea level, datum of 

1929.

Average discharge. 26 years (1929-55), 943 cfs.

Extremes. Maximum discharge during year, 5,760 cfs Apr. 19 (gage height, 7.89 ft); minimum daily, 10 cfs Sept. 14.

1928-55: 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 periods of ice effect, 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).

Revisions. WSP 1271: Drainage area.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.8 

2.0 

2.2 

2.4 

2.6

60

100

155

225

305

3.0 

3.5 

4.0 

5.0 

6.0 

7.0 

8.0

5OO 

850 

1,300 

2,250 

3,400 

4,600 

5,900

Discharge, in cubic feet per seeoncj, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

1,100 

1,010

958

1,260

1,590

1,750

1,800

1,750

1,660

1,550

1,450

1,510

1,420

1,360

1,330

1,510

1,790

2,240

2,280

2,210

1,990

1,800 

1,660

1,350

1,490

1,220

1,210

1,200

1,260

1,330 

1,320

47,358

1,528

-

"

Nov.

1,730 

1,670

1,710

2,240

2,740

3,170

3,270

5,520

5,050

2,750

2,470

2,160

1,840

1,490

1,280

1,110

1,020

925 935"

1,050

1,340

1,680 

1,900

2,020

2,030

1,980

1,850

1,530

1,800

1,730

57,750

1,925

-

-

Dec.

1,760 

1,670

1,560

1,410

1,110

1,290

1,050

1,010

935

925

915

667

955

780

955

1,450

1,640

1,760

2,570

3,790

4,500

4,650 

4,360

3,990

5,440

3,050

2,800

2,400

2,180

2,020

1,870

63,422

2,046

-

-

Jan.

1,570 

1,440

1,500

1,160

1,010

895

805

720

*660

620

675

675

65O

630

605

615

620

605

575

605

655

640 

630

620

615

595

615

640

635

690 

730

23,500

758

-

-

Feb.

680 

630

59O

565

555

550

680

920

915

850

770

760

805

1,030

1,310

1.450

1,420

1,260

1,080

940

840

805 

830

895

1 , 050

1,120

1,120

1,080

-

------

25,500

911

-

-

Mar.

1,050 

1,010

995

985

995

1,000

1,000

995

965

960

1,010

1,050

895

1,080

1,130

1, 120

1,160

1,290

1,210

1,170

1,130

1,120 

1,170

1,220

1,360

1,210

Iy280

1,290

1,300

1,300

1,490

34,820

1,123

-

-

Apr.

1,750 

1,940

1,970

2,350

2,4OO

2,700

3,000

5,310

5,570

3,630

3,720

3,780

4,040

4,170

4,360

4,730

5,280

5,640

5,610

5,500

5,260

4,950 

4,480

4,080

3,590

3,180

2,910

2,690

2,570

2,340

109,500

3,650

-

-

May

2,180 

2,010

,680

,390

,320

,410

,450

,490

,520

,520

,420

,400

1,290

1,130

1,080

*990

880

815

700

665

260

168 

655

555

510

545

560

545

330

750

675

31,875

1,028

-

-

June

840 

1,010

1,090

904

994

1,140

1,010

870

745

675

665

655

700

740

715

675

610

560

550

490

475

450 

440

420

365

43

230

255

410

420

19,126

638

-

-

July

405 

225

17

310

250

128

114

345

16

20

184

79

122

56

500

590

24

290

265

156

190

220 

200

205

20

200

198

160

560

54

16

5,479

177

-

-

Aug.

168 

126

130

198

290

220

118

290

160

200

225

375 T2"8

19

210

225

215

126

228

220

16

120 

69

122

124

330

14

118

162

140

190

5,276

170

-

-

Sept.

164 

425

15

17

154

126

132

110

435

14

15

435

76

Tz" 10

14

14

35

68

105

122

128 

125

131

115

94

102

120

115

415

3,843

128

-

-

Calendar year 1954: Max 9,470 Min 188 Mean 1,857 Cfsm 3.21 In. 43.51

Water year 1954-55: Max 5,640 Min 10 Mean 1,171 Cfsm 2.02 In - 27.45

* Discharge measurement made on this day.

Mote. Stage-discharge relation affected by ice Jan. 1 to Mar. 12, Mar. 14-29.
KENNEBEC RIVER BASIN 

Cobbosseecontee Stream at Gardiner, Maine

Location. Lat 44°13'15", long 69 C 47'25", at dam of Gardiner Water Power Co., in Gardiner, 

Kennebec County, 1.2 miles upstream from mouth.

Drainage area. 217 sq mi.

Records available. June 1890 to September 1955.

Gage. Staff gages in pond above dam and in tailrace of powerplant. Datuir of gages is 

about at mean sea level.

Average discharge. 65 years, 330 cfs.

Extremes. Maximum daily discharge during year, 1,850 cfs Dec. 20; minimuir daily, 10 cfs 

July 3,4.

1890-1955: Maximum discharge, 5,020 cfs Mar. 21, 1936 (elevation, 139.4 ft above 

mean sea level); maximum daily, 4,320 cfs Mar. 20, 21, 1936; minimum, leakage only, 

when all gates in dam are closed.

Remarks.--Discharge is sum of flow over dam, through gates and water wheels (computed on 

basis of coefficients and experiments), and leakage. Plow 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.

Revisions (water years).--WSP 541: 1916-20. WSP 1201: Drainage area. WSP 1231: 

1910-15.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

540

405

270

270

27O

270

270

270

270

270

270

270

270

270

270

270

435

700

795 765~

675

625

610

590

580

560

410

325

375 

375

390

12,935

417

-

-

Nov.

405

425

435

520

610

625

610

565

530

520

505

495

480

475

465

445

435

435

435

430

485

605

655

645

600

575

560

605

655 

645

15,875

529

-

-

Dec.

590

535

175

645

630

600

600

600

590

575

590

600

600

590

615

1,100

1,500

1,400

1,600

1.850

1,810

1,740

1,540

820

660

660

660

660

660

660 

660

26,715

862

-

-

Jan.

660

660

660

660

660

640

615

615

605

585

480

480

465

445

430

410

405

405

395

390

390

380

375

320

270

270

270

270

270

270 

270

14,020

45E

-

-

Feb.

270

270

270

270

255

240

240

240

240

240

240

240

330

420

395

375

360

360

355

360

360

360

360

395

460

495

495

505

-

9,400

336

-

-

Mar.

515

555

635

680

680

665

625

595

530

580

565

555

740

895

330

770

770

800

770

720

695

680

670

695

730

740

745

730

695

660

670

21,235

685

-

-

Apr.

695

705

720

720

720

720

720

720

705

685

670

660

550

455

475

485

375

275

IBs

280

285

275

275

440

390

385

385

385

385 

405

15,230

508

-

-

May

425

420

405

385

360

370

370

370

370

370

360

360

360

360

370

315

270

260

250

250

250

250

245

240

230

220

220

220

220 

220

220

9,535

308

-

-

June

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220

220 

220

6,600

220

-

-

July

215

130

10

10

220

220

220

220

220

220

220

220

220

220

220

205

190

190

190

190

190

190

190

190

190

190

190

190

190 

190

190

5,840

188

-

-

Aug.

190

190

190

190

185

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180 

180

180

5,625

181

-

-

Sept.

180

180

180

135

90

135

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180

180 

180

5,220

174

-

-

Calendar year 1954: Max 2,540 Min 10 Mean 550 Cfsm - In.

Water year 1954-55: Max 1,850 Min 10 Mean 406 Cfsm - In. -
KENNEBEC RIVER BASIN 53

Smaller reservoirs in Kennebeo River basin, Maine

Brassua Lake on Moose River, 4 miles southwest of Rockwood, completed in 1928, for power, 

has usable capacity of 8,560,000,000 cu ft between gage height 43.0 and 73.0 ft. 

Gage-height record furnished by Kennebec Water Power Co.

Second Roach Fond on Roach River, 6 miles east of Kokadjo, used for power, has usable

capacity of 216,000,000 cu ft between gage heights 0.5 and 10.0 ft. Gage -\ eight record 

furnished by Kennebec Water Power Co.

First Roach Fond on Roach River, at Kokadjo, used for power, has usable capacity of

938,000,000 cu ft between gage heights 1.5 and 8.0 ft. Gage-height record furnished by 

Kennebec Water Power Co .

Indian Fond on Kennebec' River , 13 miles downstream from East Outlet of Moosehead Lake, 

completed in 1954, for power, has storage capacity of 830,000,000 cu ft in top 5 ft of 

pond (total capacity of pond, 3,150,000,000 cu ft). Gage-height record furnished by 

Central Maine Power Co.

Moxie Pond on Moxie Stream, 4-=r miles east of The Porks, used for power, has urable capacity 

of 640,000,000 cu ft between gage heights 6.0 and 14.0 ft. Gage-height record furnished 

by Kennebec Water Power Co.

Flagstaff Lake on Dead River, three-quarters of a mile upstream from Black Brcok; in

T. 3, R. 4, completed in 1950, for power, has usable capacity of 12,050,000,000 cu ft

between gage heights 1,110 and 1,146 ft. 

Water Power Co.

Gage-height record furnished by Kennebec

Spencer Lake on Little Spencer Stream, 4 miles upstream from mouth, in T. 3, F. 5, used 

for power, has usable capacity of 639,000,000 cu ft between gage heights 3.5 and 12.0 ft. 

Gage-height record furnished by Kennebec Water Power Co.

Wyman Pond on Kennebec River, lj miles upstream from Bingham, completed in 19fO, for power, 

has storage capacity of 2 630,000,000 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.

Month-end gage height and contents, water year October 1954 to September 1955

Date

Dec . 31 .....................

Calendar year 1954. .......

Aug. 31... ..................

Sept. 30. ....................

Water year 1954-55. .......

Date

Sept. 30. ...................

Jan. 31. ...................

Feb. 28. ...................

May 31.. ..................

July 31 ....................

Sept. 30. ...................

Water year 1954-55. ......

Brassua Laket

Gage 

height 

(feet)

72.45 

71.5 

70.0 

67.45

-

53.2 

45.65 

44.65 

69.4 

73.1 

73.0 

72.8 

72.75 

65.95

-

8.5 

8.0 

6.9 

6.2

-

6.3 

4.5 

*6.3 

*5.8 

8.8 

8.5 

7.4 

*7.6 

7.0

.

Contents 

(millions 

of cubic 

feet)

8,338 

7,953 

7,349 

6,362

-

1,849 

406 

252 

7,113 

8,602 

8,560 

8,479 

8,459 

5,805

-

First Roach

1,008 

938 

787 

691

-

705 

463 

705 

637 

1,049 

1,008 

856 

883 

801

.

Change in 

contents 

(m.c.f.)

-385 

-604 

-987

+5,567

-4,513 

-1,443 

-154 

+6,861 

+1,489 

-42 

-81 

-20 

-2,654

-2,533

Pondt

-70 

-151 

-96

+ 94

+ 14 

-242 

+242 

-68 

+412 

-41 

-152 

+27 

-82

-207

Second Roach Pondt

Qage 

height 

(feet)

7.6 

8.2 

7.0

-

*4.5 

*9.6 

8.6 

7.6 

*7.0 

*6.0

-

Contents 

(millions 

of cubic 

feet)

150 

166 

134 

0

0

0 

O 

0 

69 

205 

177 

150 

134 

107

Change in 

contents 

(m.c.f.)

+ 16 

-32 

-134

0

0 

0 

0 

+ 69 

+ 136 

-28 

-27 

-16 

-27

-43

Indian Pondt

955.0 

953.9 

955.0 

955.0

-

955.0 

954.8 

954.5 

954.5 

955.1 

955.3 

955.2 

955.0 

955.0

_

3,510 

2,953 

3,150 

3,150

-

3,150 

3,114 

3,060 

3,060 

3,168 

3,204 

3,186 

3,150 

3,150

_

-197 

+197

O

+2,535

0 

-36 

-54 

0 

+108 

+36 

-18 

-36 

0

0

Approximate only 

t Gage height and contents at 7 a.m. on first day of following month.
KENNEBEC RIVER BASIN

Smaller reservoirs in Kennebec River basin, Maine Continued 

Month-end gage height and contents, water year October 1954 to September 1955 Continued

Date

Oct. 31.. ..................

Dec. 31. ....................

Calendar year 1954. ......

Mar. 31. ...................

Apr. 30. ...................

Sept. 30. ...................

Date

Oct. 31....... .............

Dec. 31....................

Calendar year 1954. ......

Feb. 28............ ........

Sept. 30. ...................

Water year 1954-55. ......

Moxie Pondt

Gage 

height 

(feet)

*15.0 

15.0 

*14.0

11.5

-

*15.0 

*14.5 

*14.5 

*13.S 

*13.8 

8.6

-

Contents 

(millions 

of cubic 

feet)

730 

730 

640

417

-

0 

0 

0 

730 

685 

685 

604 

622 

178

-

Change in 

contents 

(m.e.f .)

0 

-90 

-223

+223

-417 

0 

0 

+ 730 

-45 

0 

-81 

+18 

-444

-552

Spencer Laket

*9.5 

*7.5 

*6.5

-

*12.0 

11.2 

12.0 

*11.7 

12.0 

8.8

-

430 

277 

205 

0

-

0 

0 

0 

639 

570 

639 

613 

639 

378

-

-153 

-72 

-205

0

0 

O 

0 

+639 

-69 

+69 

-26 

+26 

-261

-52

Flags teff Laket

Gage 

height 

(feet)

44.7 

45.95 

44.8 

42.7

-

40.0 

36.0 

31.65 

45.2 

46.0 

44.4 

43.65 

42.15 

34.65

-

Conterts 

(millions 

of culic 

feet)

11,032 

12,01C 

ll.lOf 

9,57C

-

7,80C 

5,595 

3,68f 

11,414 

12.05C 

10,80f 

10,24f 

9,192 

4,954

-

Change In 

contents 

(m.c.f .)

+978 

-902 

-1,538

-1,646

-1,770 

-1,205 

-1,906 

+7,725 

+636 

-1,245 

-557 

-1,056 

-4,238

-6,078

Wymar Pond*

481.8 

485.0 

483.3 

482.1

-

481.6 

484.4 

483.7 

484.1 

485.0 

483.7 

483.5 

482.4 

481.8

-

8,62C 

9.08C 

8,83C 

8.66C

-

8.59C 

8,99C 

8.89C 

8.94C 

9.08C 

8.89C 

8.86C 

8.71C 

8.62C

-

+460 

-1,250 

-170

+90

-70 

+400 

-100 

+50 

+140 

-190 

-30 

-150 

-90

0

* Approximate only

t Gage height and contents at 7 a.m. on first day of following month.

* Gage heights and contents at 12 p.m.
ANDROSCOGGIN RIVER BASIN

Diamond River near Wentworth Location, N. H.

Location. Lat 44°52'40", long 71°03'25", on left bank 0.7 mile upstream from mouth and 

li miles north of Wentworth Location, Coos County.

Drainage area.--153 sq mi.

Records available. July 1941 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 1,275 ft (from topographic map).

Average discharge. 14 years, 353 cfs.

Extremes. Maximum discharge during year, 4.850 cfs Apr. 15 (gage height, 8.50 ft); minimum, 27 cfs Aug. 5 (gage height, 1.21 ft).

1941-55: 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, Sept. 1, 1952 

(gage height, 0.81 ft).

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

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

1.2

1.4 

1.7 

2.0 

2.5 

3.0

67

105

190

320

4.0 

5,0 

6.0 

7.0 

7.9

705

1,270

2,010

3,000

4,050

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

550

610

775

2,210

1,970

900

631

511

446

442

507

640

601

499

396

955

800

519

424

372

336

301

274

252

232

255

495

805

*468

461

453

19,090

616

4.03

4.65

Nov.

382

326

375

770

551

442

368

330

308

266

242

252

198

211

184

175

194

198

216

360

890

1,520

710

484

402

346

308

289

286

274

11,857

395

2.58

2.88

Dec .

244

211

*186

158

158

152

150

146

142

158

138

152

176

210

272

266

200

182

580

45U

320

295

290

265

260

260

265

335

535

675

370

8,181

264

1.73

1.99

Jan.

320

275

245

235

215

205

194

190

186

176

*170

170

162

152

150

142

136

132

126

122

118

118

114

108

106

104

99

97

92

91

84

4,834

156

1.02

1.18

Feb.

89

85

84

79

78

72

6873-

*80

85

91

10S

170

186

146

120

118

116

104

100

98

102

110

136

188

170

150

138

_

3,144

112

0.732

0.76

Mar.

152

152

150

140

136

126

122

120

T2S

*136

148

527

1,010

539

330

255

260

310

260

200

172

170

160

158

154

162

152

148

148

146

150

6,913

222

1.45

1.67

Apr.

158 T50~

180

186

257

416

750

723

503

465

870

,110

,090

,640

.000

,850

,380

,970

,420

,970

,640

,610

,290

,210

,760

,560

,300

* ,120

,390

,060

42,058

1,402

9.16

10.22

May

2,120

2,020

2,000

1,830

5,160

2,430

1,320

1,190

1,170

1,010

741

601

545

480

420

372

355

311

285

286

259

209

196

205

254

311

220

179

164

2T>0"

184

24,983

806

5.27

6.08

June

1,040

990

495

359

292

244

225

188

166

150

150

255

1,200

1,580

1,470

589

385

286

227

192

211

301

355

255

326

314

501

200

162

158

13,026

434

2.84

3.17

July

122

126

154

T04

90

83

78

69

66

59

55

50

48

46

44

65

120

77

62

51

46

41

39

34

32

32

31

45

50

38

32

1,969

65.5

0.415

0.48

A-ig.

56

45

38

32

28

50

500

850

505

114

118

250

139

500

289

750

446

487

413

254

166

154

244

298

*184

158

118

99

90

80

78

7,149

251

1.51

1.74

Sept.

72

65

62

57

54

55

52

48

46

46

46

61

73

BT

50

50

49

46

42

40

40

39

57

BT

58

39

39

59

46

48

1,470

49.0

0.520

0.36

Calendar year 1954: Max 7,380 Mln 58 Mean 520 Cfsm 3.40 In. 46.13

Water year 1954-55: Max 4,000 Mln 28 Mean 396 Cfsm 2.59 In. 35.18

Peak discharge (base, 5,600 cfs).--Apr. 15 (8:50 p.m.) 4,850 cfs (8.50 ft); 

cfs (7.60 ft).

* Discharge measurement made on bhis day.

a.m.) 5,690
56 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 1955. October 1922 to November 1943, monthly 

discharge only, published in WSP 13U1. Published as "at Errol Dam1 ' prior to 1922.

Gage.--Water-stage recorder. Datum of gage is 1,227.30 ft above mean sea level, datum 

of 1929. Prior to Dec. 8, 1943, movable rod gage at Errol Dam at datum 5.0 ft higher.

Average discharge.--50 years, 1,884 cfs (adjusted).

Extremes.--Maximum discharge during year, 9,630 cfs May 9 (gage height, 7.08 ft); minimum daily, 1,300 cfs June 13.

1905-55: Maximum daily discharge, 15,700 cfs June 18, 1943; minimum daily, leakage only, at various times when gates in dam were closed.

Instantaneous maximum not available prior to Dec. 9, 1943.

Remarks . Records excellent. Flow regulated by Kennebago, Rangeley, Mooselookmeguntic , 

Richardson, Umbagog and Aziscohos Lakes (see p. 65).

Cooperation .--Records prior to Dec. 9, 1943, furnished by Union Water Power Co. 

Revisions.--WSP 1001: Drainage area.

Rating table, water year 1954-55 (gage height, in feet, and 

discharge, in cubic feet per second)

2.0 

2.5 

3.0 

4.0

1,200

1,760

2,420

3,860

5.0 

6.0 

8.0

5,390

7,330

11,800

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

(t)

Oct.

2,810

2,810

2,840

3,770

5,470

6,450

6.500

5,840

5,440

5,000

4,500

4,430

4,360

3,890

4,090

4,680

4,970

5,670

5,830

5,440

4,540

3,930

3,340

2,670

2,290

2,130

1,920

1,810

*1,750 

1.610

1,640

122,420

3,949

-267

Nov.

1,760

1,900

1,790

1.580

1,790

2,070

2,270

2,340

2,320

2,380

2,490

2 , 500

2,530

2,560

2,550

2,550

2,570

2,570

2,550

2,450

2,060

1,850

2,270

2,490

2,640

2,770

2,530

2.830

2,810

,-?l?°-

70,570

2,352

+174

Dec.

2,830

2,880

2,880

2,970

2,990

2,980

3,010

3.040

3,020

2,870

2,830

2,840

2,900

2,900

2,780

2,710

2,740

2,700

2 . 410

2,410

2,590

2,780

3,010

2,970

2,920

2,940

2,910

2,830

2,760

2,710 

2,690

87 , 800

2,832

-1,422

Jan.

2,620

2,590

2,560

Z , 260

2,600

2,600

2,640

2,730

2,760

2,770

2,760

2,780

2,780

2,800

2,810

2,800

2,780

2.870

2,870

2,840

2,840

2,840

2,830

2,770

2,730

2,730

2,760

2,770

2,770

2 , 760 

2,760

84,780

2,735

-1,926

Feb.

2.76O

2,670

2,600

2,530

2,460

2,430

2,390

2,380

2,380

2,360

2,310

2,180

2,340

2,42O

2,320

2,280

2,270

2,250

2,250

2,290

2,230

2,060

1.960

2,070

2,080

2,110

2,160

2,200

-

 

64,740

2,312

-1,646

Mar.

2.240

2,240

2,250

2,340

2,390

2,480

2,490

2,530

2.590

2,590

2,500

2,450

2,360

2,410

2,530

2,480

2,420

2,360

2,340

2,320

2,340

2,390

2,420

2,420

2,420

2,420

2,420

2,420

2,430

2,430 

2,410

74,830

2,414

-1,752

Apr.

2,380

2,460

2,670

2,640

2,530

2,570

2,730

2,700

2,570

2,420

2,190

2,370

2,920

2,670

2,910

3,760

4,380

4,610

5.050

4,030

2,570

1.750

1,810

2,300

3,240

3,410

3,050

*2,590

2,190

2,350

85,820

2,861

+5,237

May

2,730

3,150

3,610

3,580

3,910

6,870

7,920

9,190

9.580

9,050

7,650

5,560

3,980

3,670

3,280

3,180

2,440

2,240

2,180

2,180

2,190

2,180

2,150

2,140

2,040

1.500

2,050

2,100

2,110

2,110 

2,110

118,630

3,827

+1,809

June

1,620

1,980

2,900

3,080

2,790

2,190

2,050

2,020

2,100

2,190

2,140

2,020

1.300

2,680

4,300

4.590

3,850

2,700

2,180

2,160

2,230

2,070

2,030

2,080

2,180

2,230

2,180

2,190

2,220

2,220

72,470

2,416

+147

July

2j.l80

2,150

2,030

1,840

1.800

1,810

1,810

1,810

1,860

1,920

1,900

1,900

1,900

1,89O

1,890

1,890

1,850

1,890

1,900

1,890

1,890

1,890

1,930

1,930

1,930

1,930

1,930

1,920

1,920

1,920 

1,920

59,220

1,910

-1,747

ftug.

1,920

1,900

1,930

1,940

1,930

1,790

1,890

1,770

1,860

1,890

1,820

1,760

1,810

1.610

1,610

1,630

1,610

1,620

1,670

1,850

1,980

2,060

2,060

1,930

1,990

1,980

2,030

2,050

2,140

2,190 

2.200

58,420

1,885

-805

Sept.

2,180

2,200

2,240

2,240

2,240

2.280

2,270

2,250

2,250

2,270

2,250

2,200

2,230

2,220

2,160

2,150

2,140

2,160

2,150

2,140

2,140

2,190

2,200

2,120

2.100

" 2,160

2,190

2,180

2,120

2,120

65,740

2,191

-2,247

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

3,682 

3.52

4.06

2,526 

2.42 

2.70

Calendar year 1954 : 

Water year 1954-55 :

1,410 

1.35

1.56

809 

0.774 

0.89

666 

0.637 

0.66

662 

0.633 

0.73

8,098 

7.75 

8.65

5,636 

5.39 

6.21

Observed

Max 10,900 Min 835 Mean 2,798 

Max 9,580 Min 1,300 Mean 2,645

2,563 

2.45 

2.73

163 

0.156 

0.18

1,O80 

1.03 

1.19

-56 

-0.054 

-0.06

Adjvsted

Mean 3,128 Cfs-n 2.99 In. 40.62 

Mean 2,272 Cfs-n 2.17 In. 29.50

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Kennebago, Rangeley, Mooselookmeguntic, Richardson, Unbagog and Aziscohoa Lakes.
ANDROSCOGGIN RIVER BASIN 57 

Androscoggln River near Gorham, N. H.

Location.--Lat 44°26'30", long 71 0 11'15", on right bank at Pulslfer Rips, 2 miles downstream from Dead River and 4 miles upstream from Gorham, Coos County.

Drainage area.--1,363 sq ml.

Records available.--October 1913 to September 1955. October 1922 to February 1929 monthly 

discharge only, published In WSP 1301. Published as "at Berlin" prior to October 1928.

Gage.--Water-stage recorder since Mar. 16, 1929. Datum of gage Is 832.88 ft 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. 42 years, 2,448 cfs (adjusted).

Extremes.--Maximum discharge during year, 11,000 cfs May 9 (gage height, 7.97 ft); minimum daily, 1,920 cfs July 8, 9, 18.

1913-55: Maximum daily discharge, 20,000 cfs June 18, 1917, Apr. 30, 1923; minimum- 

(since 1929), 456 cfs Aug. 10, 1947 (gage height, 1.74 ft), from rating curve extended 

below 1,400 cfs; minimum dally, 795 cfs Mar. 15, 1948.

Remarks.--Records excellent except those for periods of backwater from paper mill waste, 

which are good. Plow regulated by powerplants above station and by Kennebago, Rangeley, Mooselookmeguntic, Richardson, Umbagog and Aziscohos Lakes (see p. 65).

Revisions.--WSP 1001: Drainage area.

Rating table, water year 1954-55, except periods of backwater fr 

waste (gage height, In feet, and discharge, in cubic feet pe

paper n 

second,)

3.5

4.0 

4.5

1,820

2,460

3,230

4,050

6,000

11,100

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

3,440

3,360

3,450

4,860

6,810

7,420

7.540

7,200

6,340

6,130

5 360

5,280

5,180

4,960

4,230

6,980

6,620

5,400

6,550

6,500

5,710

4,860

4,140

3,520

2,960

2,610

2,670

2,960

*2,720

2 520 

2*420

151,700

4,894

-267

Nov.

2,380

2.560

3,100

4.250

3,330

*5,090

5,050

5,050

2,940

2,850

2,860

2,960

2,900

2,910

2,910

2,840

2,850

2,910

2,940

5,020

5,420

5,810

3,420

3,370

3,340

3,340

5,420

5,150

3,420

3,440

93,590

3,120

+174

Dec.

3,330

*3,290

3,310

3,170

3,290

3,150

3,230

3,290

3,330

3,420

3,210

3,150

3,150

3,130

5,250

3,170

3,210

5.680

3,230

3,150

2.990

3,020

3,490

3,290

3,170

3,290

5,310

3,390

3,630

3,490 

3,510

101,500

5,274

-1,422

Jan.

5.150

3,050

3,010

2.660

2,910

2,940

2,850

2,930

2,990

5,040

*5,040

5,010

3,040

2,990

3,040

5,050

2,990

2,960

3,120

3,040

2,930

3,040

2,990

2,990

2,910

2,880

2,910

2,850

2 , 880

2 , 900 

2,860

91,950

2,966

-1,926

Feb.

2,860

2,820

2,700

2,620

2,610

2,600

2,560

2,490

2,490

*2,540

2,620

2,680

2.550

2,550

2,640

2,580

2,550

2,560

2,560

2,600

2.910

2,860

2,840

*2,900

2,730

2,620

2,580

2,610

-

74,010

2,645

-1,646

Mar.

.580

,660

,580

,580

,680

,700

,790

,740

,820

* ,850

,970

,150

.260

,990

,020

,130

,010

,930

,790

,740

,700

,730

,780

,760

,760

,740

,780

,700

,720

, 760 

,780

87,180

2,812

 1,752

Apr.

2,900

2,850

2,740

2,850

3,010

3,390

4,16O

4,160

3,630

3,580

4,340

4,680

4,700

5,660

8,560

9,450

8,270

7,470

8,100

8,600

6,360

4,310

4,410

4,390

4,850

5,700

5,660

*5,220

4,180

4,050

152,170

5,072

+5,237

May

4,320

4,910

5,190

5,360

4,520

7,950

8,850

9,510

10.700

10 , 500

9,380

7,800

5,540

4,520

4,140

3,880

3,500

2,800

2,660

2,560

E.490

2 , 400

2,390

E,320

2,420

2,860

*2.240

2,430

2,270

2,400 

2,350

145,160

4,683

+1 , 809

June

3,360

3,490

5,440

5,580

3,550

2,940

2,550

2,290

2.270

2,270

2,400

2,400

3,570

3,170

5,580

5,770

5,000

3,860

2,840

2,460

2,640

2,990

2,790

2,600

2,560

2,720

2,720

2,520

2,580

2,560

93,270

3,109

+147

July

2 , 45O

2,590

2,320

2,100

1,950

1,950

1,950

1.920

1,920

1,960

1,960

1,940

1,950

1,980

1,940

1,980

2,020

1,920

1,980

1,960

1,950

1,950

1,940

1,990

1,980

1,960

1,980

1,980

1,960

1,950

1,960

62,140

2,005

-1,747

Aug.

1,980

1,960

1.940

1,940

1,960

2,000

1,940

2,160

1,930

1,940

2,010

2,120

1,930

2.640

2,330

2,400

2,600

2,400

2,270

2,070

2,100

2,150

2,350

2,500

*2,270

2,190

2,110

2,140

2,100

2,200 

2,220

66,910

2,159

-805

Sept.

2,200

2,160

2,180

2,200

2,200

2,200

2,240

2,200

2,180

2,220

2,230

2,270

2,190

2,230

2,190

2,150

2,140

2,160

2,150

2,150

2,110

2,120

2,140

2,160

2,090

2.070

E.120

2,160

2,120

2,110

65,040

2,168

-2,247

Adjusted for change reservoir contents

Mean 

Cf sm 

In.

4,267 

3.39 

3.91

3,294 

2.42 

2.70

Calendar year 1954 : 

Water year 1954-55:

1,852 

1.36 

1.57

1,040 

0.763 

0.88

997

0.731 

0.76

1,060 

0.778 

0.90

10,310 

7.56 

8.44

6,492 

4.76 

5.49

Observed

Max 14,000 Mln 1,530 Mean 3,715 

Max 10,700 Min 1,920 Mean 3,246

3,256 

2.39 

2.67

258 

0.189 

0.22

1,3^4 

0.933 

1.14

-79

-0.058 

-0.06

Adjusted

Mean 4,043 Cfsm 2.97 In. 40.26 

Mean 2,873 Cfsm 2.11 In. 28.62

nebago, Rangeley, Mooselook-

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, : 

meguntic, Richardson, Umbagog and Aziscohos Lakes.

Note. Backwater from paper mill waste Oct. 1 to Apr. 15, May 16 to June 15; discharge estimated 

on basis of 8 discharge measurements. Negative figures of adjusted discharge and runoff indicate 

that evaporation and seepage from reservoirs exceeded Inflow.
58 ANDROSCOGGIN RIVER BASIN

Androscoggin River at Rumford, Maine

Location.--Lat 44°32'45", long 70°32'35", on left bank at upper 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 1955. October 1903 to September 1904 monthly 

discharge only, published in WSP 1301.

Gage. Gages in pond above dam and in tailrace of upper plant. Prior to Aug. 1, 1937, 

gages in pond and tailrace of middle plant.

Average discharge.--63 years, 3,678 cfs (adjusted).

Extremes. Maximum daily discharge during year, 21,400 cfs Apr. 16; minimum daily, 

1,930 cfs Aug. 4.

1892-1955: Maximum discharge, 74,000 cfs Mar. 20, 1936; minimum daily, 625 cfs 

Mar. 27, 1911.

Remarks.--Discharge computed from flow over upper dam and through wheels. Flow regulated 

by Kennebago, Rangeley, Mosselookmeguntic, Richardson, Umbagog and Aziscohos Lakes 

(see p. 65).

Cooperation. Records furnished by Rumford Falls Power Co. 

Revisions.--WSP 1001: Drainage area.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

Z

3

4

5

6

7

e

9

10

11

12

13

14

15

16

IV

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

4,190

3,820

3,900

5,550

7,150

7,550

7,680

7,410

6,700

6,310

6,070

5,930

5,780

5,390

4,870

19,200

14^400

9,260

7,960

7,560

6,870

5,940

5,170

4,500

4,080

5.440

3,520

4,300

4,090

4,150

4,060

196,800

6,348

-267

Npv.

4,060

3,810

7,870

11.900

7,110

5,410

4,760

4,500

4,300

4,070

3,870

3,910

3,740

3,680

3,7ZO

5 . 500

3,600

3,750

3,990

5,360

8,650

9,090

6,280

5,320

4,980

4,800

4,770

4,500

5,020

5,130

155,450

5,182

+174

Dec.

4,740

4,420

4,190

3,570

3,680

2.940

3,600

4,000

4,210

4,630

4,280

3,950

3,910

3,630

5,760

6,780

4,890

6,490

11 . 600

7,150

5,310

3,910

3,900

4,270

3,890

3,600

4,540

4,690

4,900

4,710

4,800

146,940

4,740

-1,422

Jan.

4.520

4,350

4,230

4,080

3,320

3,590

3,340

3,350

3,810

3,840

3,850

3,640

3,570

3,420

3,690

3,920

3,580

3,530

3,280

3,350

3,230

3,300

3,680

3,520

3,640

3,240

3,260

5.060

3,180

3,100

3,100

110,370

3,560

-1,926

Feb.

3,010

2,980

2,950

2,850

2,900

2,950

2,920

2,850

2 . 820

2,840

3,020

4.350

3,870

5,150

3,350

3,270

3,010

5,040

2,930

2,900

2,910

5,070

5,190

5,470

4,180

4,030

3,490

5,300

-

_______

89,520

5,197

-1,646

Mar.

5,190

5,320

3,270

3,090

5.010

5,160

2,180

5,150

5,250

5,450

5,790

5,310

5.440

4,640

3,940

4,370

4,460

3,770

3,640

3,560

5,560

5,890

5,570

5,480

5,450

4,450

5,560

3,210

3,260

3,590

5,870

114,080

5,680

-1,752

Apr.

5.250

5,270

5,290

5,680

6,700

7,730

9,570

8,350

6,660

7,180

11,600

11,400

9,680

11,900

20,000

21,400

17,000

14,400

15,400

16,600

15,100

10,100

9,850

9,110

9,090

11,200

12,000

10,600

9,220

8,240

519,550

10,650

+5,237

May

8,590

8,790

9,370

9,610

9,640

11,000

12,400

13,300

15.500

14,700

13,100

11,200

8,860

6,970

6,180

5,680

5,240

5,700

5,550

5,440

5,510

5,380

5,240

3,180

5,110

5,040

3,800

5,510

5,360

3,830

3,540

219,700

7,087

+1 , 809

June

4,500

5,670

4,490

4,510

4,690

4,120

3,590

5,260

2,760

2.750

2,990

5,850

7.690

6,000

6,650

7,050

6,260

5,160

4,050

5,160

5,040

5,800

5,790

3,400

5,720

3,510

3,390

3,100

3,070

3,140

127,160

4,239

+147

July

2.940

2,750

2,810

2,700

2,610

2,200

2,290

2,270

2,090

2,160

2,180

2,140

2,080

2,080

2,170

2,120

2,530

2,170

2,110

2,100

2,100

2,080

1,960

1,980

2,040

2,050

2,070

2,090

2,110

2,060

1.940

68,760

2,218

-1,747

Aug.

2,090

2,040

1,950

1.950

2,010

2,110

2,120

2,470

2,250

2,110

2,220

2,670

2,470

7.550

4,470

3,120

3,160

3,150

3,190

2,720

2,400

2,350

2,490

3,280

2,950

2,540

2,360

2,210

2,280

2,220

2,310

83,190

2,684 -805

Sept.

2,340

2,190

2,180

2,240

2,210

2.570

2,200

2,280

2,150

2,290

2,210

2,500

2,260

2,200

2,270

2,240

2,160

2,160

2,140

2,150

2,110

2,050

2,100

2,160

2,190

2,160

2.020

2,200

2,170

2,190

66,090

2,205

-2,247

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

6,081 

2.94 

3.39

5,556 

2.59 

2.89

Calendar year 1954 : 

Water year 1954-55:

3,318 

1.61 

1.86

1,634 

0.791

0.91

1,551 

0.750 

0.78

1,928 

0.955 

1.08

15,887 

7.69 

8.58

8,896 

4.50 

4.96

Observed

Max 28,900 Min 1,590 Mean 5,798 

Max 21,400 Min 1,930 Mean 4,651

4,586 

2.12 

2.36

471 

0.228 

0.26

1,879 

0.909 

1.05

-44

-0.021 

-0.02

Ad lusted

Mean 6,128 C'sm 2.96 In. 40.25 

Mean .4,278 C"sm 2.07 In. 28.10

t Change in .contents, equivalent In cubic feet per second, in Kennebago, Ran3eley, Mooselookmeguntlc, Richardson, Umbagog and Asiscohos Lakes.

Note. Negative figures of adjusted discharge and runoff indicate that evaporation and seepage 

from reservoirs exceeded inflow.
ANDROSCOGGIN RIVER BASIN 59

Swift River near Roxbury, Maine

Location. Lat 44°38'30", long 70°35'15", on left bank 2\ miles downstream from Roxbury, 

Oxford County, and 6 miles upstream from mouth.

Drainage area.--95.8 sq mi.

Records available.--June 1929 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 615.67 ft above mean sea level, datum of 

1929.

Average discharge. 26 years, 197 cfs.

Extremes.--Maximum discharge during year, 6,250 cfs Oct. 16 (gage height, 8.26 ft); minimum, 9.4 cfs Sept. 22, 23 (gage height, 0.99 ft).

1929-55: Maximum discharge, 14,500 cfs June 15, 1942 (gage height, 12.42 ft), from 

rating curve extended above 7,000 cfs; maximum gage height, 12.58 ft Sept. 17, 1932; 

minimum discharge, 3.8 cfs Sept. 16, 17, 1948 (gage height, 0.93 ft).

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

Revisions (water years).--WSP 801: 1934(m). WSP 1031: Drainage area. WSP 1301: 1937- 

38(M), 1942(M).

Rating table, water year 1954-55, e 

height, in feet, and discharge

0.99

1.0

1.2

1.4

1.7

2.0 1Z4

ept peri

2.5

3.0 

3.5 

4.0 

5.0 

6.0

Jds of ice effect (gage 

feet per second)

Z55

437

680 

1,010 

1,810 

Z.890

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

154

137

320

935

785

368

272

226

211

193

305

379

272

217

193

2.460

905

480

368

302

265

236

211

205

188

202

450

605

364

*471

467

13,146

424

4.43

5.11

Nov.

375

345

665

1.O2O

508

379

309

275

252

220

211

202

178

178

166

156

161

163

186

330

703

757

394

298

255

226

211

199

223

223

9,768

326

3.40

3.79

Dec.

193

178

166

146

142

140

138

132

132

*134

132

126

120

134

435

420

335

460

961

375

249

172

154

146

134

130

124

124

138

154

156

6,680

215

2.24

2.58

Jan.

146

138

126

124

124

122

118

116

114

*110

106

102

99

95

93

91

88

86

83

78

76

74

71

69

68

66

63

62

61

56

2,884

93.0

0.971

1.12

Feb.

55

53

48

45

44

44

45

49

53

*58

72

340

210

140

104

83

71

66

65

63

63

69

130

255

188

162

140

124

-

2,839

101

1.05

1.09

Mar.

122

118

93

86

81

78

76

76

81

84

*90

178

130

102

97

104

116

104

95

86

79

76

74

72

72

71

79

124

81

66

86

2,877

92.8

0.969

1.12

Apr.

126

124

128

168

255

400

525

383

278

375

820

738

637

920

2,220

,770

,060

,060

,390

,100

891

764

863

680

686

912

884

616

703

776

22,252

742

7.75

8.65

May

802

789

809

789

2.260

1,350

675

822

675

517

387

334

306

278

242

223

208

178

166

159

141

130

*130

134

186

335

168

130

ill

173

137

13,747

443

4.62

5.33

June

255

217

*156

126

139

118

102

86

79

71

112

210

590

327

220

147

112

91

76

66

72

122

147

93

72

83

86

63

162

86

4,286

143

1.49

1.66

July

56

53

47

37

33

32

32

26

24

23

19

18

16

16

16

24

56

29

21

18

15

14

13

12

11

*9.8

13

23

18

1?

11

753.8

24.3

0.254

0.29

Aug.

11

13

11

11

15

27

82

88

63

28

22

E6

42

«33

47

72

86

66

43

34

26

22

43

65

43

27

21

18

14

14

13

1,136

36.6

0.382

0.44

Sept.

li

13

11

11

10

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9^4

9.4

9.8

11

13

10

lu

12

13

313.4

1U. 4

0.109

Li. 12

Calendar year 1954 : Max 3,10U Min 29 Mean 323 Cfsm 3.37 In. 45.73

Water year 1954-55: Max 2,460 Min 9.4 Mean 221 Cfsm 2.31 In. 31.30

Peak discharge (base, 2.400 cfal. Oct. 16 (9 a.m.) 6,250 cfs 

.) 3,260 cfs (6.31 ft). 

made on this day.

. 4-18, Dei

(ba 

(5.96 ft); May 5 (3:

* Discharge meas 

Note. Stage -discharge relation affected by i

(8.26 ft); Apr. 15 (8 p.m.) 2,840 cfs

22 to Apr. 7.
60 ANDROSCOGGIN RIVER BASIN 

Nezinscot River at Turner Center, Maine

Location. Lat 44°16 1 10", long 7U°13 1 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 1955.

Gage. Water-stage recorder. Altitude of gage is 270 ft (from topographic map).

Average discharge.--14 years, 305 cfs.

Extremes.--Maximum discharge during year, 2,720 cfs Dec. 19 (gage height, 5.25 ft); minimum, 17 cfs Sept. 22, 23 (gage height, 0.97 ft).

1941-55: Maximum discharge, 13,900 cfs Mar. 27, 1953 (gage height, 11.18 ft); minimum, 16 cfs Oct. 1, 2, 1941, Sept. 13, 14, 1949.

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

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.1 

1.3 

1.6 

2. 0 195

2.5

3.0 

3.5 

4.U 

5.0

375

620

950

1,350

2,390

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

256

246

242

323

380

339

284

242

219

21U

216

246

246

222

201

870

1.6BU

1,150

740

555

452

382

335

299

267

252

274

339

339

*456

510

12,772

412

2.41

2.78

Nov.

510

540

79U

1 ,820

1,420

875

65O

535

460

398

355

343

319

295

284

264

253

253

270

425

955

1.3UU

97U

698

555

480

424

411

580

831

18,263

609

3.56

3.97

Dec .

747

565

452

355

31U

290

280

265

265

*27O

299

274

230

205

335

680

555

620

2,550

2,OOO

l,llu

747

630

555

490

430

4UO

375

371

371 

363

17,189

554

3.24

3.74

Jan.

335

327

335

327

295

28O

260

255

250

*245

230

220

210

205

200

198

196

192

190

182

178

174

174

166

162

158

156

152

150

148

146

6,696

216

1.26

1.45

Feb.

142

138

136

138

140

150

168

198

168

164

*164

335

575

545

505

460

420

380

350

325

300

295

335

430

470

435

405

375

-

8,646

309

1.81

1.88

Mar.

370

430

425

415

385

365

345

325

305

295

*285

325

400

365

335

335

345

340

310

295

285

270

290

305

335

335

315

295

285

JTqR

10,389

335

1.96

2.26

Apr.

614

768

845

915

1,140

,430

,620

: ,660

,230

,070

,330

,560

,300

,120

,240

,480

,230

922

789

866

740

604

530

490

465

638

929

894

674

545

29,638

988

5.78

6.45

May

445

388

343

311

295

335

339

319

351

339

299

270

240

219

219

210

195

174

160

 148

135

127

118

125

156

475

440

284

219 

274

303

8,255

266

1.56

1.80

June

438

500

4O2

3T9

284

256

207

162

148

130

148

177

490

668

450

319

256

204

160

133

122

120

131

133

125

135

140

124

110

3°.

7,089

236

1.38

1.54

July

87

80

71

65

60

58

57

55

52

49

46

45

43

43

43

43

45

45

45

45

43

43

43

42

43

*42

42

42

40

40

39

1,536

49.5

0.289

0.33

Aug.

36

37

34

34

34

33

36

37

37

39

61

77

66

*65

71

73

71

65

60

58

57

55

53

53

52

49

47

46

45

42

41

1,564

50.5

0.295

0.34

Sept.

11

40

39

36

35

33

31

30

37

26

25

25

25

24

23

22

22

22

22

21

20

19

18

19

20

2O

20

21

22 

22

780

26.0

0.152

0.17

Calendar year 1954: Max 5,430 Hln 60 Mean 493 Cfsm 2.88 In. 39.15

Water Water year year 1954-55: 1354-55: Max Max 2,350 2,550_____Min Min 18 18_____Mean Mean 336 556_____Cfsm Cfsm 1.96 l.aB In. In. 26.71 26. Cl________

Peak discharge (base, 1.700 cfs).--Oct. 17 (8 to 9 p.m.) 1,750 cfs (4.43 ft); Nov. 4 (12:30 p.m.) 

1,940 cfs (4.61 ft); Dec. 19 (7 p!m.) 2,72O cfs (5.25 ft); Apr. 8 (4:30 a.m.) 1,760 cfs (4.44 ft).

 ,..arge measurement made on this day. 

Note.--Stage^dlscharge relation affected by ice De 4-10, 13-17, 23-27, Jan. 1, Jan. 5 to Mar. 29.
ANDROSCOGGIN RIVER BASIN 61 

Little Androscoggin River near South Paris, Maine

Location. Lat 44°17'05", long 70°32'10", on right bank just upstream from Bisooe Falls,

 l| miles upstream from South Paris, Oxford County.

Drainage area. 76.2 sq mi.

Records available.--September 1913 to April 1924, October 1931 to September 1955.

Gage.-Water-stage recorder and concrete control. Datum of gage is 394.48 ft above mean 

sea level, datum of 1929. Prior to Apr. 30, 1924, chain gage at same site and datum.

Average discharge . 34 years (1913-23, 1931-55), 139 cfs.

Extremes. Maximum discharge during year, 1,950 cfs Dec. 19 (gage height, 7.41 ft); mini-

~^^13-24! S li3f-55: 3 "charge! 1% cfs Mar. 27, 1953 (gage height, 12 41 ft); 

from rating curve extended above 2,800 cfs, verified by computation of flow over dam at 

South Paris; minimum, 1 cfs Aug. 16, 1914, Feb. 22 to Mar. 5, 1920.

Remarks.-Records excellent except those for periods of ice effect or no 8age-height reo-

 5737 which are good. Slight diurnal fluctuation at low and medium flow by sawmills and

grist mills above station. 

Revisions (water years). WSP 726: Drainage area. WSP 1301: 1915-23(M).

Rating table, water year 1954-55, except periods of ice effect 

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

1.4

1.5

1.6

3.0 

3.5 

4.0 

5.0 

6.0 

7.0

98

180

285

585

1,030

1.650

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsn

In.

Oct.

105

102

95

170

176

141

140

93

84

83

94

124

108

93

22.

525

540

317

230

190

159

138

121

109

99

95

130

170

148

*216

235

5,107

165

2.17

2.50

Nov.

222

243

410

871

49T

325

248

212

182

157

143

137

137

116

112

99 5-9-

101

124

220

530

530

346

250

210

184

167

167

260

285

7,580

253

3.32

3.70

Dec.

267

206

169

141

120

101

102

101

101

116

121

104

94

81 255"

322

b220

415

1,620

660

379

290

281

241

b205

182

182

176

176

165

167

7,785

251

3.29

3.79

Jan.

147

148

150 T43"

137

129

116

bllO

102

97

89

86

81

78

76

74

72

70

69

68

66

64

62

62

61

59

59

57

56

52

49

2,689

86.7

1.14

1.31

Feb.

47

47

43

41

4T

43

52

63

60

58

63

237

274

?S5

200

156

126

111

102

95

94

99

116

20O

202

170

143

129

_

______

3,247

116

1.52

1.58

Mar.

129

154

137

121

114

109

104

94

86

m

120

163

159

140

129

135

178

T57

137

120

112

104

111

111

126

120

116

115

95

99

163

3,857

124

1.63

1.88

Apr.

248 '2~9"5~

317

332

440

590

692

763

540

457

670

845

632

560

700

930 692"

516

467

554

426

343

314

285

274

493

599

464

*346

283

15,067

502

6.59

7.35

May

237

204

184

167

169

198

178

188

222

190

154

135

121

109

102

98

92

75

72

64

63

58

*5456-

134

332

2oT

129

90

237 

167

4,481

145

1.90

2.19

June

241

222

154

115

112

94

74

66

58

54

92

176

578

4BT

263

165

116

85

70

65

68

86

126

81

143

120

95

76

64

55

4,165

139

1.82

2.03

July

4943-

36

33

30

29

29

26

24

21

18

16

15

14

13

14

15

16

14

13

11

11

10

6.5

6.0

6.9

6.9

8.3

8.3

7.6

'

559.4

18.0

0.236

0.27

Aug.

6.5

6.2

6.0

5.6

BT^

5.6

8.0

20

13

8.8

11

38

5T

22

18

20

25

20

18

16

14

11

11

18

17

*13

11

9.4

8.0

7.8 

7 .8

428.3

13.8

0.181

0.21

Sept.

7.6

TT5

6.9

6.5

6.0

5.6

5.2

4.4

4.2

4.2

4.2

4.4

4.2

4.2

4.0

4.2

5.4

4.2

3.8

3.4

3.2

2.O

1.8

775:

3.4

3.8

3.8

3.8

4.2

5.2

133.6

4.45

0.058

0.06,

Calendar year 1954: Max 2,320 Min 14 Mean 227 Cfsm 2.98 In. 40.38

Water year 1954-55: Max Ij620 Min 1.8 Mean 151 Cfsm 1.98 In. 26.87

Peak discharge (base, l.OOO efs). Nov. 4 (5 a.m.) 1,040 cfs (6.O1 ft); Dec. 19 (5:50 a.m.) 1,950 

cfs (7.41 ft); Apr. 16 110:30 p.m.) 1,OOO cfs (5.95 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note..--No gage-height record Jan. 15-23; discharge estimated on basis of recorded range in stage 

and weather records.
32 ANDROSCOGGIN RIVER BASIN

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 County, and 3.6 miles upstream from mouth.

Drainage area.--328 sq mi.

Records available.--October 1940 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 215 ft (from topogranhic map).

Average discharge. 15 years, 562 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 2,900 cfs Dec. 20 (gage height, 6.23 ft); minimUmi940-5i: "MlximSm^tfchaS^ie^OO cfsW. 28, 1953 (gage height, 14.76 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 ice effect or no gage-height rec-

 ord~7 which are fair. Plow regulated by Pennesseewassee and Thompson Lakes (see p. bo) 

and several powerplants above station.

Rating table, water year 1954-55, except periods of ice effect ( 

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

1.3 

1.5 

2.0 

2.5

39

71

190

356

3.0 

4.0 

5.0 

6.2

565

1,120

1,830

2,670

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

Z

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

ttotal

Mean

(t)

Oct.

606 

552

552

588

578

583

560

542

524

494

476

494 

498

485

468

980

1,400

1,410

1,150

1,000

892

748

650

588

601

574

565

583

596

*675

705

21,117

681

-53

Nov.

685 

782

1,260

2,100

2.210

1,880

1,440

1,180

1,000

868

770

726 

650

625

592

610

592

578

sar

690

1,250

1,580

1,530

1,300

1,180

1,140

1,040

964

1,050

1,340

32,195

1,073

+87

Dec.

1,200 

1,060

900

820

710

600

565 580"

585

*650

675

620 

596

578

1,120

1,180

1,130

1,210

2,200

2,780

2,430

1,790

1,720

1,280

1,130

980

910

868

820

780

776

33,243

1,072

+1.1

Jan.

792 

765

720

685

660

630

605

585

570

550

535

520 

505

490

480

470

455

450

440

43O

426

420

410

405

400

390

390

380

380

370 T7o"

15,678

506

-91

Feb.

365 

360 350"

360

375

360

498

459

426

418

476

1,080 

856

800

760

730

700

680

665

660

645

630

695

826

850

874

814

865

_

17,587

628

+8.3

Mar.

856 

1,000

958

850

730

680

660

640 F40~

650

690

868 

874

804

809

934

1,040

964

885

787

748

700

765

782

814

820

754

685 "660

735

950

24,732

798

-80

Apr.

1,200 

1,350

1,420

1,490

1,690

1,980

2,200

2,510

2,130

1,830

1,800

2,010 

2,080

1,890

1,810

1,940

1,970

1,720

1,480

1,420

1,360

1,220

1,080

976

922

1,080

1,340

1,460

*1,370

1,210

47,738

1,591

+148

May

1,050 

928

814

700

645

625

640

601

592

630

606

552 

520

516

476

459

463

489

455

422

398

398

371

367

379

468

620

498

489

645

592

17,408

562

+5.2

June

832 

838

76?

650

588

502

463

402

426

418

430

463 

610

804

792

695

560

480

459

434

459

430

414

410

410

418

410

406

394

367

15,729

524

+4.2

July

341 

3TF

291

220

101

79

77

73

71

TS

110

129 

124

134

134

136

139

188

326

271

248

225

204

190

176

170

168

173

154

146

144

5,331

172

-64

Aug.

119 

105

66

50

50

56

57

64

46

45

132

210 

T4T

165

165

157

204

182

162

146

131

122

124

139

119

*112

110

101

94

92

92

3,561

115

-14

Sept.

94 

90

88

88

86

86

86

82

80

84

88

94 

86

82

84

86

84

84

84

84

82

77

 m75

97

86

95

187

190

T5T

2,882

96.1

-77

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

628 

1.91 

2.20

1.16C 

3.54 

3. 95

Calendar year 1954: 

Water year 1954-55:

1,073 

3.27 

3.77

415 

1.27 

1.46

636 

1.94 

2.02

718 

2.19 

2.52

1,739 

5.30 

5.91

567 

1.73 

1.99

Observed

Max 4,960 Min 122 Mean 914 

Max 2,780 Min 45 Mean 650

528 

1.61

1.80

108 

0.329 

0.38

101 

0.308 

0.36

19.1 

0.058 

0.06

Ad Justed

Mean 928 Cfsm 2.83 In. 38.39 

Mean 639 Cfsm 1.95 In. 26.42

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, In Pennesseewassee and Thompson Lakes.

Note. No gage-height record Dec. 1-10; discharge estimated on basis of recorded range in stage, 

weather records, and records for nearby stations. Stage-discharge relation affected by Ice Dec. 24- 

27, 29, 30, Jan. 3-16, 18-20, Jan. 22 to Feb. 4, Mar. 5-9.
ANDROSCOGGIN RIVER BASIN 63

Androscoggin River near Auburn, Maine

Location. Lab 44°04'15", long 70°12'35", on left bank l£ miles downstream from Little

Androscoggin River and 2 miles downstream from north bridge between Auburn and Lewiston, 

Androscoggin County.

Drainage area. 3,257 sq mi.

Records available. --October 1928 to September 1955. Monthly discharge only for some 

periods, published in WSP 1301.

Gage. Water-stage recorder. Datum of gage is 109.18 ft above mean sea level, datum of 

1929.

Average discharge. --27 years, 6,009 cfs (adjusted).

Extremes . --Maximum discharge during year, 33,000 cfs Apr. 16 (gage height, 10.85 ft); minimum daily, 505 cfs Sept. 25.

1928-55: 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. 

Plow regulated by powerplants above station and by Kennebago, Rangeley, Mooselookmeguntic, Richardson, Umbagog, Aziscohos, Auburn, Pennesseewassee and Thompson Lakes, and 

Gulf Island Pond (see p. 65).

Revisions (water years) . WSF 781: 

monthly runoff in inches) .

1930, 1933-34. WSP 1301: 1929-36, 1940-50 (adjusted

Rating table, water year 1954-55 (gage height In feet, and discharge 

In cubic feet per second)

0.7 500

1.0 695

1.5 1,100

2.0 1,650

3.0 3,240

Discharge, In cubic feet per £

8.0 

11.0

5,350

11,100

18,900

33,700

ond, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

(t)

Oct.

7,480 

7,260

6,690

7,856

9,880

12,300

11,600

11,300

10,500

9,910

9,460

9,520 

9,460

8,650 

8,250

11,400

30,200

23,400

15,900

14,100

13,100

11,600

10,200

8,880

8,000

7,830

7,070

7,290

8,560

8,530

9,090

335,260

10,810

-329

Nov.

8,790 

8,590

9,650

19,400

21,800

14,700

11,600

10,400

10,300

8,760

6,880

7,180 

7,180

6,980 

7,410

6,260

5,720

6,370

6,340

6,630

11,300

17,100

15,600

11,500

9,810

9,210

8,730

8,250

9,400

10,600

302,440

10,080

+283

Dec.

10,300 

8,910

8,170

7,420

6,480

6,530

5,800

4,880

*6,030

7,200

7,300

6,400 

6,130

6,180 

8,590

10,100

9,450

9,220

20,200

21,500

14,300

9,980

8,770

8,100

8,200

7,400

7,570

8,080

8,130

7,910

8,240

273,470

8,822

-1,432

Jan.

7,900 

7,950

7,510

7,250

7,080

6,230

5,920

5,310

4,590

5,640

5,670

5,770 

5,880

5,980 

5,870

5,480

5,490

5,800

5,740

5,980

6,170

5,110

3,990

5,280

5,490

5,330

5,400

4,960

4,740

2,980

4,800

177,270

5,718

-2,046

Feb.

4,580 

4,560

4,590

4,550

4,120

2,850

5,366

4,760

4,600

4,500

4,800

7,370 

5,426

7,210 

6,570

6,220

6,240

5,960

5,150

4,810

6,000

5 , 600

5,850

6,540

6,790

6,380

6,700

6,750

_

154,770

5,528

-1,637

Mar.

6,880 

7,110

6,920

6,790

5,430

4,69&

6,160

5,570

6,020

5,720

6,590

6,860 

8,010

7,210 

7,260

7,180

7,230

7,100

6,450

6,840

6,880

6 , 7 40

6,680

6,800

6,770

6,430

5,560

6,250

6,430

6,690

6,770

204,020

6,581

-1,878

Apr.

7,760 

8,160

9,740

10,200

11,500

14,400

17,200

19,100

15,700

13,500

15,300

20,500 

19,400

17,000 

21,300

50,700

29 800

24,100

21,200

23,200

26,400

18 , 800

15,700

15,100

14,400

15,300

18,100

18,400

*16,600

14 , 400

522,960

17,430

+5,468

May

13,500 

13,000

13,000

13,400

13 , 600

15,500

15,200

15,900

17,000

18,700

17,400

15,600 

13,900

11,200 

10,700

8,040

8,040

8,000

6,770

5,480

6,140

3/720

5,380

5,480

5,340

6,340

7,820

6,460

5,300

6,110

7,060

319,080

10,290

+1,784

June

7,120 

8,360

8,760

7,520

6,610

7,140

6,740

5,670

5,300

5,250

4,460

4,060 

7,790

12,500

9,640

9,490

9,150

8,300

7,040

6,100

5,460

4,970

5,460

5,750

5,200

4,920

5,380

5,1.70

4,940

4,860

199,110

6,637

+126

July

4.750 

3,800

3,390

3,340

3,670

3,640

2,920

2,920

3,010

2,490

3,870

3,370 

3,300

3,280 

3,260

1,150

1,020

3,820

3,460

3,470

3,300

3,400

1,130

755

3,600

3,120

3,100

3,030

2,940

1,180

565

90,030

2,904

-1,829

Aug.

3,480

2,980

2,940

3,050

2,970

1,100

650

3,700"

3,180

3,250

3,340

4,520 

2,900

1,660 

7,540

6.C80

4,760

4,860

4,680

3,620

2,230

4,180

5,450

5,820

5,870

*4,C30

2,270

1,160

3,450

5,600

3,860

106,980

5,451

-952

Sept.

5.860 

3,610

1,680

515

780

3,830

3,660

3,730

3,610

1,800

565

5,280 

3,620

5,580 

3,100

3,070

1,430

730

3,300

3,150

3,070

3,040

2,990

1,430

505

3 , 140

2,960

3,090

3,010

3,110

79,245

2,642

-2,353

Adjusted for change in

Mean 

Cfsm

10,480 

3.22 

3.71

10.36C 

5.16 

3.5E

Calendar year 1954: 

Water year 1954-55:

7,390 

2.27 

2.62

3,672

1.13 

1.30

3,891 

1.19 

1.24

4,703 

1.44 

1.66

22,900 

7.03 

7.84

12,070 

3.71 

4.28

Observed

Max 46,000 Min 910 Mean 9,847 

Max 30,700 Min 505 Mean 7,574

6,763 

2.08 

2.32

1,075 

0.330 

0.38

Adjusted

2,519 

0.773

0.89

289 

0.089 

0.10

Mean 10,200 Cfsm 3.13 In. 42.47 

Mean 7,172 Cfsm 2.20 In. 29.89

* Discharge measurement made on this day.

t Change in contents, equivalent In cubic feet per second, in Kennebago, Rangeley, Mooselookmeguntic, Richardson, Umbagog, Aziscohos, Auburn, Fennesseewassee and Thompson Lakes and Qulf Island Fond.
64 ANDROSCOGGIN RIVER BASIN

Cathance River near Topshara, Maine

Location.--Lat 43°57'15", long 69°56'30", on right bank just upstream from falls, 0.9 mile 

upstream from highway bridge and lowest dam on the river, 1.6 miles downstream from 

bridge on U. 3. Highway 201, and 2.3 miles northeast of Topsham, Sagadahoc County.

Drainage area.--36.4 sq mi.

Records available.--October 1952 to September 1955 (discontinued).

Gage.--Water-stage recorder. Altitude of gage is 25 ft (from topographic map).

Extremes.--Maximum discharge during year, 452 cfs Dec. 20 (gage height, 3.50 ft); minimum 

daily, 0.02 cfs Sept. 7-29.

1952-55: Maximum discharge, 2,040 cfs Sept. 12, 1954 (gage height, 7.26 ft); minimum daily, that of Sept. 7-29, 1955.

Remarks.--Records good except those for periods of ice effect, debris en control, or no 

gage-height record, which are fair.

Rating table, water year 1954-55, except periods of ice effect and bac'twater froir 

debris (gage height, In feet, and discharge, In cubic feet per second)

0.44 

.5

0.02 

.30 

1.2 

2.6 

4.4

2.5 

3.0 

4.0

207

322

603

118

Discharge, In cubic feet per second, water year October 1954 to September 1955

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

Cfsm

In.

Oct.

30

28

25

35

46

44

37

30

26

23

23

28

30

28

25

76

160

156

132

*105

78

58

47

39

33

29

27

27

29

39

51

1,544

49.8

1.37

1.58

Nov.

60

72

114

228

262

226

178

138

108

82

63

54

48

42

40

36

34

33

32

72

210

292

787

232

184

*141

112

40

148

243

3,811

127

3.49

3.89

Dec.

245

200

154

110

78

58

47

39

*35

49

73

66

54

46

250

390

337

317

421

441

357

259

224

154

118

90

67

61

61

63

75

4,939

159

4.37

5.04

Jan.

75

77

118

Toff

»87

73

63

53

44

40

34

31

26

24

21

18

17

16

16

16

16

16

14

14

13

11

11

11

11

10

9_._b.

1,093.6

35.3

0.970

1.12

Feb.

8.4

7.4

7.7

8.0

8.8

11

*31

104

97

85

84

104

350 2"fO

186

118

94

77

65

64

63

64

76

96

162

162

140

140

_

------

2,683.3

95.8

2.63

2.74

Mar.

162

230

270

205

152

120

100

*89

69

61

84

132

192

170

154

172

225

194

172

126

94

76

118

188

205

180

158

126

110

*102

132

4,568

147

4.04

4.66

Apr.

170

188

186

178

176

176

176

170

150

128

120

110

100

91

96

110

106

93

84

108

102

89

77

72

»7£

100

146

150

152

168

3,842

128

3.52

3.93

May

148

T2TJ

93

72

61

60

57

54

52

47

43

37

29

27

27

25

22

19

16

14

13

12

10

9.6

*10

13

14

13

12

35

56

1,220.6

39.4

1.08

1.24

June

93

120

110

87

63

48

36

27

20

16

13

16

38

70

86

82

62

42

27

18

14

12

in

9.1

10

ll

12

10

8.8

7.4

1,178.3

39.3

1.08

1.20

July

5.9

6.2

17

17

13

9.6

7.7

6.5

5.2

4.5

3.8

3.2

2.9

2.3

2.0

1.9

1.9

1.9

*2.2

2.0

1.9

1.7

1.3

1.2

1.0

.70

.62

or

1.2

1.0 

. 80

129.32

4.17

0.115

0.13

Aug.

0.62

.80

.80

.55

.62

.91

1.5

1.7

1.9

2.2

2.6

5.2

9.e

12

TT

9.6

8.4

8.0

7.7

7.1

5.7

4.5

3.6

3.6

2.5

4.7

.55

.30

.19

.16 

.13

118.73

3.83

0.105

0.12

Sept.

0.10

^M

.06

.05

.04

.03

.02

.02

.02

.02

.02

.02

.02

.02

.02

*.02

.02

.02

*.02

.02

. 02

.02

.02

.02

.02

.02

.02

.02

.02

.03

0.85

0.028

0.001

0.00

Calendar year 1954: Max 1,920 Mln 3.4 Mean 117 Cfsm 3.21 In. 43.65

Water year 1954-55: Max 441 Mln 0.02 Mean 68.8 Cfsm 1.89 In. 25.65
ANDROSCOGGIN RIVER BASIN 65

Reservoirs in Androscoggin River basin

Kennebago Lake on Kennebago River, at Kennebago, used for power, has usable capacity of 

721,000,000 cu ft between elevations 1,773.0 and 1,780.5 ft above mean sea Iev3l, unadjusted. Gage-height record furnished by Union Water Power Co.

Rangeley Lake on Rangeley Stream, at Oquossoc, used for power and log driving, ha^ usable 

capacity of 1,339,200,000 eu ft in top 4 ft of lake (top of flashboards). Gags-height 

record furnished by Union Water Power Co.

Mooselookmeguntic Lake at Upper Dam, in Richardson Township, used for power and log 

driving, has usable capacity of 8,370,000,000 cu ft between gage heights 8.3 a~id 

20.5 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, has usable capacity of 5,691,500,000 cu ft between gage heights 3.0 aid 

20.5 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 log driving, has usable capacity of 3,080,160,000 

cu ft between gage heights 5.5 and 15.0 ft. Gage-height record furnished by Unio'i Water 

Power Co.

Azlscohos 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 490.0and 535.0ft. Gage-height record furnished by Onion 

Water Power Co.

Gulf Island Pond on Androscoggin River, 3 miles upstream from Lewiston, completed in 1928, 

for 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, has 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, has 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.

Month-end gage height and contents, water year October 1954 to September 1955

Date

Dec. 31..............

Calendar year 1954.

Sept. 30. .............

Water year 1954-55.

Date

Sept. 30. .............

Dec. 31........ ......

Calendar year 1954. 

Jan. 31..............

July 31..............

Sept.30. .............

Water year 1954-55.

Kennebago Laket

Qage 

height 

(feet)

81.5 

81.4 

81.0 

79.8

-

79.4 

78.8 

78.3 

79.0 

81.3 

79.4 

78.1 

77.2 

77.3

-

Contents 

(millions 

of cubic 

feet)

836 

825 

779 

643

-

599 

534 

480 

555 

813 

599 

459 

365 

376

-

Change in 

contents 

(m.c.f.)

-11

-46 

-136

-90

-44 

-65 

-54 

+75 

+258 

-214 

-140 

-94 

+11

-460

Mooselookmeguntic Laket

19.5 

19.2 

19.8 

17.8

-

' 15.15 

13.05 

8.55 

17.2 

20.0 

20.1 

17.55 

14.95 

11.7

-

7,652 

7,438 

7,867 

6,438

-

4,574 

3,144 

155 

6,012 

8,010 

8,082 

6,260 

4,436 

2,230

-

-214 

+429 

-1,429

+4,906

-1,864 

-1,430 

-2,989 

+5,857 

+1,998 

+72 

-1,822 

-1,824 

-2,206

-5,422

Rangeley Laket

Gage 

height 

(feet)

4.00 

4.00 

4.00 

4.OO

-

2.92 

1.67 

.79 

2.92 

3.88 

4.00 

3.42 

3.67 

2.50

-

Contents 

(millions 

o cubic 

eet)

,339 

,339 

,339 

,339

-

978 

559 

265 

978 

1,299 

1,339 

1,146 

1,229 

837

-

Change in 

contents 

(m.o.f.)

0 

0 

0

+1,004

-361 

-419 

-294 

+713 

+321 

+40 

-193 

+83 

-392

-502

Upper and Lower Richardson Laket

19.25 

18.9 

19.4 

18.7

-

16.1 

14.7 

12.2 

15.7 

20.0 

20.1 

18.6 

18.6 

14.45

-

5,218 

5,087 

5,275 

5,012

-

4,047 

3 529 

2J613 

3,899 

5,600 

5,538 

4,975 

4,975 

3,436

-

-131 

+188 

-263

+2,344

-965 

-518 

-916 

+1,286 

+1,601 

+38 

-563 

0 

-1,B39

-1,782

t Qage height and contents at 7 a.m. on first day of following month.
66 ANDROSCOGGIN RIVER BASIN

Reservoirs in Androscoggin River basin Continued

Month-end gage height and contents, water year October 1954 to September 1955

Date

Calendar year 1954.

Feb. 28..............

Water year 1954-55.

Date

Calendar year 1954.

Feb. 28..............

Sept. 30..............

Water year 1954-55.

Date

Calendar year 1954. 

Jan. 31............. .

Feb. 28..............

Mar. 31............. .

May 31..............

Sept. 30..............

Water year 1954-55.

Umbagog Laket

Gage 

height 

(feet)

13.9 

13.5 

13.55 

13.0

-

12.45 

11.65 

10.5 

14.7 

13.9 

14.8 

12.55 

12.45 

11.5

-

Contents 

(millions 

of cubic 

feet)

2,651 

2,495 

2,514 

2,300

-

2,091 

1,794 

1,380 

2,963 

2,651 

3,002 

2,129 

2,091 

1,740

-

Change in 

contents 

(m.c.f.)

-156 

+19

-214

0

-209 

-297 

-414 

+1,583 

-312 

+351 

-873 

-38 

-351

-911

Gulf Island Pond*

62.02 

62.04 

62.06 

61.94

-

61.94 

61.74 

60.64 

61.99 

61.88 

61.72 

62.02 

59.96 

59.77

-

2,489 

2,492 

2,495 

2,478

-

2,478 

2,451 

2,304 

2,484 

2,469 

2,448 

2,489 

2,211 

2,187

-

+3 

+3 

-17

+108

0 

-27 

-147 

+180 

-15 

-21 

+41 

-278 

-24

-302

Pennesseewassee Lakett

98.5 

98.55 

98.5 

98.35

-

97.7 

96.4 

95.1 

98.4 

98.5 

98.3 

98.3 

98.3 

98.3

-

116 

118 

116 

109

-

82 

36 

2.4 

111 

116 

107 

107 

107 

107

-

+2 

-2 

-7

+11

-27 

-46 

-34 

+109 

+5 

-9 

0 

0 

0

-9

Aziscohos Laket

Gage 

height 

(feet)

535.7 

535.05 

534.6 

528.7

-

522.6 

517.9 

517.8 

53H.3 

535.5 

535.8 

532.25 

531.3 

526.65

-

Contents 

(millions 

of cubic 

feet)

9,810 

9,608 

9,469 

7,703

-

5,988 

4,735 

4,710 

8,770 

9,748 

9,841 

8,755 

8,470 

7,122

-

Change in 

contents 

(m.c.f.)

-202 

-139 

-1,766

+2,247

-1,715 

-1,253 

-25 

+4,060 

+978 

+93 

-1,086 

-285 

-1,348

-2,688

Lake Auburnt

60.3 

60.05 

60.5 

60.4

-

59.75 

60.0 

60.2 

60.5 

59.95 

59.55 

58.75 

58.55 

58.05

-

532 

502 

556 

544

-

468 

496 

520 

556 

490 

446 

358 

336 

285

-

-30 

+54 

-12

+114

-76 

+28 

+24 

+36 

-66 

-44 

 88 

-22 

-51

-247

Thompson Lake**

98.4 

97.65 

98.85 

98.9

-

97.75 

98.1 

97.15 

98.6 

98.65 

98.75 

97.85 

97.65 

96.6

-

1,913 

1,770 

1,998 

2,008

r

1,790 

1,856 

1,676 

1,951 

1,960 

1,980 

1,808 

1,770 

1,571

-

-143 

+228 

+10

+437

-218 

+66 

-180 

+275 

+9 

+20 

+172 

-38 

-199

-342

t Gage height and contents at 7 a.m. on first day of following month.

* Gage height and contents at 12 p.m.

tt Gage height and contents as of last day of each month determined by interpolation.

** Gage height and contents at 7 a.m.
ROYAL RIVER BASIN 67 

Royal River at Yarmouth, Maine

Location.--Lat 43°47'55", long 70°10'45", on right bank 150 ft upstream from lower highway 

bridge in Yarmouth, Cumberland County.

Drainage area. 142 sq mi.

Records available. October 1949 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 6 years, 320 cfs.

Extremes. Maximum discharge during year, 2,250 cfs Dec. 15 (gage height, 3.97 ft); minimum, 31 cfs Sept. 23, 24 (gage height, 1.06 ft).

1949-55: Maximum discharge, 7,960 cfs Sept. 12, 1954 (gage height, 7.12 ft); minimum, 4.4 cfs Oct. 17, 18, 1952 (gage height, 0.71 ft); minimum gage height, 0.64 ft 

Aug. 23, 24, 1950.

Remarks. Records excellent except those for periods of ice effect or debris on control, 

which are fair. Some diurnal fluctuation at low flow caused by mill above station.

Rating table, water year 1954-55, except periods of ice effect or backwater from 

debris (gage height, in feet, and discharge, in cubic feet per second)

1.0

1.1 

1.3 

1.6

31

47

92

196

2.0 

2.5 

3.0 

4.0

385

705

1,140

2,290

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

171

159

155

167

188

167

148

138

130

130

144

176

167

148

138

460

780

467

314

*249

222

196

180

163

152

152

152

163

167

240

272

6,655

215

1.51

1.74

Nov.

285

343

810

1,510 932"

583

385

319

285

258

231

222

209

196

196

188

180

180

176

360

1,090

1,230

725

461

364

323

299

304

690

*1,200

14,534

484

3.41

3.80

Dec.

772

486

285

240

215

196

188

192

196

230

240

205

176

162

1,740

1,800

780

635

1,770

1,210

600

385

335

300

260

240

235

240

260

285

310

15,168

489

3.44

3.97

Jan.

290

285

410

385 *370

305

260

250

240

230

220

215

210

200

196

192

188

184

180

180

170

162

160

156

156

152

148

144

140" 140

140

6,658

215

1.51

1.74

Feb.

140

140

138

138

140

240

*430

310

250

240

310

1,240

950

570

285

184

152

156

156

160

168

196

285

570

585

440

395

410

-

9,378

335

2.36

2.46

Mar.

705

1,160

905

635

440

335

285

*250

230

196

391

852

836

590

512

804

995

635

440

335

295

275

649

844

788

656

455

385

335

*360

570

17,143

553

3.89

4.48

Apr.

852 B"4T

742

656

684

728

677

622

486

419

467

461

396

369

425

524

448

369

364

550

431

349

314

304

*3lT

649

878

684

609

677

16,292

543

3.82

4.26

May

461

3T5

295

262

244

267

254

240

240

222

196

180

167

163

171

163

152

141

130

120

114

109

106

106

112

171

144

117

109

214

231

5,944

192

1.35

1.56

June

448

531

359

244

196

180

148

127

114

109

117

188

385

461

304

209

167

141

120

112

124

120

117

109

109

124

130

120

109

9Ji

5,820

194

1.37

1.53

July

90

92

275

168

110

124

140

110

92

82

73

64

62

60

58

51

62

66

55

51

49

45

45

45

44

42

41

41

55

44

39_

2,375

76.6

0.539

0.62

Auf.

36

37

34

33

33

42

58

64

53

42

47

~95 106

87

73

64

66

68

64

60

51

49

*49

73

70

55

47

44

42

39

39

1,720

55.5

0.391

0.45

Sept.

39

39

37

36

36

34

34

34

33

33

33

36

37

37

34

33

33

33

33

33

33

33

31

39

55

51

41

41

44

44

1,109

37.0

0.261

0.29

Calendar year 1954: Max 

Water year 1954-55: Max

7,160

1,800

Min 

Min

Mean 

Mean

405

282

2.85

1.99

In. 

In.

38.73

26.90

Peak discharge (base, 1,500 cfs).--Nov 4 (4 to 6 a.m.) 1,620 cfs (3.43 ft); Dec. 15 (3 p.m.) 2,250 

cfs (3.97 ft); Dec. 19 (6:30 a.m.) 1,830 cfs (3.62 ft).
68 PRESUMPSCOT RIVER BASIN

Presumpscot River at outlet of Sebago Lake, Maine

Location.--Lat 43°49'05", long 70°27'00", at dam of hydroelectric plant at Eel Weir Falls, 

1 mile downstream from lake outlet, Cumberland County.

Drainage area.--436 sq mi.

Records available. January 1887 to September 1955.

Gage.--Float gages in forebay and tailrace of hydroelectric plant at Eel Weir Falls and 

staff gages at dam on outlet of Sebago Lake.

Average discharge.--68 years, 666 cfs (unadjusted).

Remarks.--Discharge computed from Alien meter records for each of three pairs of water 

wheels and from records of openings of two regulating gates 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, totaling about 35 cfs, not included in figures of daily 

discharge. Flow completely regulated by Crystal, Highland, Long, and Pleasant Lakes, 

Brandy, Thomas, and Panther Ponds, Sebago Lake (surface area, 45.6 si mi), and by several smaller ponds, which have a combined usable capacity of 13,535,000,000 cu ft.

Cooperation.--Records furnished by S. D. Warren Co.

Revisions (water years).--WSP 261: Drainage area. WSP 1301: 1920-50 (adjusted monthly 

runoff in inches) .

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

,110

,E70

,390

,400

,210

826

832

763

678

720

780

804

834

833

868

1,590 82T

1,010

998

1,010

1,000

1,000

1,000

1,010

963

831

749

926

1,110

1, 110

1,110

30,562

986

-383

Nov.

1,150

1,110

1,110

1,110

1,110

1,270

1,400

1,400

1,400

1,380

1,390

1,390

1,390

1,390

1,390

1,380

1,380

1,380

1,110

833

1,130

1,390

1,380

1,380

1,390

1,380

1,380

1,380

1,330

1,290

38,903

1,297

-116

Dee.

1,280

1,280

,280

,110

,100

,100

,080

,100

,380

,380

,370

,390

,370

,370

,370

992

,130

,370

,100

,090

,430

,550

,540

,550

,280

9~ez~ 830

,310

- j5. 6 9

!550

39,784

1,283

-146

Jan.

1,560

1,560

1,560

1,570

1,550

1,560

1,550

1,540

1,550

1,550

1,540

1,550

1,540

1,540

1,540

1,540

1,540

1,540

1,140

1,140

1,120

827

l,3lO

1,180

1,250

1,250

1,250

1,240

1,250

1,250

1,250

43,367

1,399

-1,132

Feb.

,250

,190

,170

,030

,060

,080

,070

,070

934

,070

,070

,070

,070

,070

,070

,070

,070

937

,070

,070

,070

,070

,070

,070

,070

974

829

836

-

29,460

1,052

-261

Mar.

553

554

554

553

706

978 82"3

830

834

833

834

828

894

757

830

831

831

833

833

840

872

835

831

831

833

832

835

831

836

827

834

E4,726

798

+235

Apr.

837

B3T

836

830

834

834

832

835

835

835

834

835

832

832

832

831

833

833

833

833

834

831

833

833

797

834

830

831

833

833

24,962

832

+712

May

832

826

834

831

834

834

835

835

835

835

830

834

837

834

840

831

832

831

838

836

836

836

835

835

833

839

840

834

832

844

25,873

835

+532

June

842

831

833

834

836

836

833

834

836

836

840

827

833

835

829

832

836

832

815

854

834

837

840

822

831

831

840

834

833

836

25,022

834

-197

July

832

837

0

0

0

927

833

833

835

833

834

833

833

831

832

832

829

840

836

835

832

822

777

822

826

832

832

831

832

662

23,327

752

-811

Aug.

831

T7T

667

669

674

683

669

669

671

673

673

666

664

663

661

665

664

702

663

661

661

663

673

660

667

667

667

660

666

661

662

20,971

676

-453

Sept.

661

662

661

651

474

684

6TT

671

669

668

665

667

668

666

664

665

661

661

661

662

662

659

657

658

660

656

631

658

658

656

19,667

656

-772

Adjusted for change in reservoir contents and diversion

Mean 

Cfsm 

In.

603 

1.38 

1.59

1,181 

2.71 

3.02

Calendar year 1954: 

Water year 1954-55:

1,137 

2.61 

3.01

267 

0.612

0.71

791 

1.81 

1.88

1,033 

2.37 

2.73

1,544 

3.54 

3.95

1,367 

3.14 

3.62

Observed

Max 2, 730 Min 0 Mean 849 

Max 1,590 Min 0 Mean 950

637 

1.46

1.63

-59

-0. 135 

-0.16

223 

0.511 

0.59

-116 

-0.266 

-0.30

Adjusted

Mean 1,141 Cfan 2.62 In. 35.52 

Mean 716 Cfsm 1.64 In. 22.27

t Change in contents, equivalent in cubic feet per second, in Sebago and othe- lakes upstream and 

diversion by Portland Water District.

Note.--Negative figures of adjusted discharge and runoff indicate that evaporation and seepage 

from reservoirs exceeded inflow.
SACO RIVER BASIN 69

Saco River near Conway, N. H.

Location.--Lab 43°59'25", long 71°05'30", on left bank ab Odell Falls, if miles dovmstream 

from Swift River and Conway, Carroll County.

Drainage area. 386 sq mi.

Records available.--August 1903 to December 1909, January 1910 to June 1912 (gage heights 

only), February 1929 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 418.19 ft above mean sea level, datum of 

1939. Aug. 26, 1903, to June 30, 1912, chain gage at site three-quarters of a mile 

downstream at different datum.

Average discharge.--32 years (1903-9, 1929-55), 935 cfs.

Extremes.--Maximum discharge during year, 14,800 cfs Oct. 16 (gage-height, 9.96 ft); minimum, 128 cfs Aug. 5 (gage height, 2.15 ft).

1903-9, 1929-55: Maximum discharge, 43,900 cfs Mar. 27, 1953 (gage height, 17.20 

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).

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

Revisions (water years).--WSP 756: Drainage area. ¥SP 1301: 1908-9.

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

2.1 

2.5 

2.5 

3.0 

3.5

115

165

228

420

685

4.0 

5.0 

6.0 

7.0 

8.0

1,050

2,200

3,840

5,950

8,500

Discharge, In cubic feet per second, water year October 1954 to September 195?

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

685

631

614

724

834

685

619

580

558

555

625

757

649

575 

548

7,700

3,910

2,100

1,610

1,350

1,190

1,030

946

862

806

799

834

*978

834

1,040 

1,060

36,686

1,183

3.06

3.53

Nov.

898

834

2,060

4,200

2,120

1,630

1,340

1,190

1,080

970

906

876

806

764 

744

685

679

661

685

1,280

4,710

5,610

2, 620

1,900

1,560

1,350

1,230

1,160

1,340

1,360

47,248

1,575

4.08

4.55

Dec.

1,190

*1,010

880

765

705

660

625

595

570

555

540

520

510

495 

1,070

1,430

890

1,000

4,760

2,270

1,370

1,160

1,050

970

890

855

820

790

790

905

31,460

1,015

2.63

3.03

Jan.

755

735

685

660

635

615

585

570

540

515

500

480

465

445 

430

420

400

375

355

335

315

305

300

295

290

285

280

275

260

260 

260

13,625

440

1.14

1.31

Feb.

255

250

245

245

240

240

240

245

*260

295

375

 1,010 890

755 

685

610

540

515

470

460

445

465

520

955

820

655

595

570

-

13,850

495

1.28

1.33

Mar.

565

530

470

445

465

490

435

425

445

*465

555

685

720

635

625

635

725

660

625

570

580

570

570

560

540

520

515

465

465

511 

507

17,063

550

1.42

1.64

Apr.

778

906

930

906

1,220

1,620

2,120

1,920

1,520

1,750

3,490

3,770

2,750

2,590 

6,880

6,880

4,770

3,720

4,740

4,990

3,830

3,010

3,610

3,150

2,850

3,340

*3,410

2,830

3,080

2 , 880

90, 240

3,008

7.79

8.69

May

2,990

2,980

3,250

3,100

3,300

2,640

2,000

2,160

2,270

1,780

1,500

1,330

1,280

1,200 

1,130

1,040

1,010

890

813

792

718

685

698

685

673

744

643

575

553

869 

7 18

45,016

1,452

3.76

4.34

June

1,920

1,340

906

737

724

655

655

608

553

506

575

985

5,670

1,940 

1,470

1,030

834

724

631

569

532

*603

643

597

1,920

978

778

643

608

537

28,871

962

2.49

2.78

July

481

452

434

411

576

416

496

416

572

580

294

266

259

252 

248

248

294

255

228

218

196

195

92

89

77

74

68

195

192

177 

158

8,811

284

0.736

0.85

Aug.

152

145

158

132

130

160

198

248

215

171

192

565

411

5,260 

1,910

914

704

862

744

603

481

402

416

649

*501

416

560

321

294 

273

269

18,256

588

1.52

1.75

Sept.

269

255

251

218

208

195

189

180

171

168

174

180

168

162 

162

160

160

160

155

152

140

152

T32

148

205

195

165

162

186

5,365

179

0.464

0.52

Calendar year 1954: Max 

Water year 1954-55: Max

Peak discharge (base,

12,400 

7,700

8,700 cfs!

Min 

Min

). Oct,

195 

130

. 16 (3 P.

Mean 1 

Mean

.m.) 14,

,387 

977

800 cfs

Cfsm 

Cfsm

(9.96

3.59 In 

2.53 In

ft); Aug.

. 48.78

. 34.32

14 (10 a.m.) 9,790

* Discharge measurement made on this day.

Note_.--Stage-discharge relation affected by ice Dec. 3-15, Dec 21 to Mar. 29.
SACO RIVER BASIN

Ossipee River at Effingham Falls, N. H.

Location. Lat 43°47'40", long 71°03'40", on left bank 0.3 mile upstrean from highway 

bridge at Effingham Palls, 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 1955.

Gage. Water-stage recorder. Altitude of gage is 390 ft (from topographic map).

Average discharge. 13 years, 744 cfs.

Extremes.--Maximum discharge during year, 2,690 cfs Apr. 17 (gage height, 6.78 ft); minimum, 68 cfs May 31; minimum daily, 117 cfs July 26, 27, Aug. 2-6.

1942-55: Maximum discharge, 11,700 cfs Mar. 28, 1953 (gage height, 11.64 ft); minimum, 10 cfs Oct. 9, 10, 1944; minimum daily, 11 cfs Oct. 10, 1944.

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

good. Flow regulated by Ossipee and Silver Lakes and Pine River Pond (combined 

capacity, 1,430,000,000 cu ft).

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

1.7 

2.0 

2.5 

3.0

109

160

266

420

4.0 

5.0 

7.0

840

1,340

2,900

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

*885

768

759

633

531

535

535

301

195 ¥19-

523

523

527

527

877

1,110

1,160 

1.180 

1,180

1,1SO

1,140

1,120

894

746

741

736

728

555

452

455 

459

22,354

721

-

-

Nov.

467

471

721

,200

,860

,760

,580

,080

642

*527

531

531

535

535

531

531

531 

531 

531

768

,100

,530

,910

,860

,760

,490

,230

,220

,520

,590

31,073

1,036

-

-

Dec.

1,340

1,240

940

768

772

768

764

759

754

*750

746

746

759

754

756

867

1,000 

1,120 

1,440

1,910

1,960

1,830

al,700

al,550

al,400

al,200

al,050

960

945

965 

96O

33,453

1,079

-

-

Jan.

950

926

916

903

880

849

840

808

813

786

111

759

*750

741

732

723

795 

826 

800

111

750

723

696

674

642

620

611

545

a520

a 500 

a470

23,102

745

-

-

Feb.

a450

a430

*a410

a405

a400

a400

a405

410

424

434

452

531

567

571

575

575

579 

579 

575

543

519

499

511

543

599

642

664

696

-

~-----

14,388

514

-

-

Mar.

728

764

777

782

777

111

772

746

710

7OO

*696 7TB759

790

804

826

894 

930 

965

955

935

921

930

894

872

844

849

831

800

782 

111

23,305

816

-

-

Apr.

795

849

955

1.O6O

1,180

1,340

1,540

1,760

1,880

1,880

1,960

2,19O

2,310

*2,290

2,310

2,570

2,670 

2,590 

2,480

2,510

2,510

2,400

2,210

2,060

1,920

1,750

1,760

1,88O

1,890

1,850

57,349

1,912

-

-

May

1,760

1,620

1,050

714

1,040

1,120

1,110

1,010

916

912

111

782

872

710

559

559

*559 

559 

555

551

4O6

304

301

301

252

294

459

459

459

455 

578

22,003

710

-

-

June

1,040

1,200

1,140

1,020

862

759

579

487

483

483

479

575

990

1,290

1,560

1.570

1,100 

759 

583

487

487

*483

487

491

646

970

579

615

615

455

23,252

775

-

-

July

259

403

523

519

356

254

254

254

254

254

254

254

254

254

254

254

254 

252 

252

249

249

249

247

177

119

117

117

119

119

119 

119

7,612

246

-

-

Aug.

119

117

117

*117

117

117

209

279

279

276

279

501

736

754

985

926

628 

499 

829

1,080

990

955

772

587

331

242

242

238

238

238 

238

14,035

453

-

-

Sept.

284

327

32T

324

318

318

315

312

309

306

304

304

301

298

298

295

292 

289 

*261

249

292

289

287

284

284

279

279

218

247

254

8,741

291

-

-

Calendar year 1954: Max 6,600 Min 195 Mean 1,067 Cfsm 3.23 In. 43.89

Water year 1954-55: Max 2,670 Min 117 Mean 774 Cfsm 2.35 In. 31.86

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records, 

and records for Ossipee River at Cornish, Maine.
SACO RIVER BASIN 71

Ossipee River at Cornish, Maine

Location. Lat 43°48'25", long 70°47'55", on left bank just downstream from highway 

bridge in Cornish, York County, l£ miles upstream from mouth.

Drainage area.--453 sq mi.

Records available. July 1916 to September 1955.

Gage. Water-stage recorder. Datum of gage is 276.1 ft above mean sea level, datum of 

1929. Prior to Aug. 21, 1929, chain gage, and Aug. 21, 1929, to Sept. 30, 1S42, 

water-stage recorder, at same site at datura 1 ft higher.

Average discharge.--39 years, 882 cfs.

Extremes. Maximum discharge during year, 3.000 cfs Apr. 20 (gage height, 5.90 ft); minimum, 41 cfs Aug. 4 (gage height, 0.71 ft); minimum daily, 136 cfs Aug. 3, 4.

1916-55: Maximum discharge, 17,200 cfs Mar. 21, 1936 (gage height, 16.32 ft, 

present datum), from rating curve extended above 7,500 cfs; minimum, 25 cfs Oct. 23, 

1947 (gage height, 0.60 ft).

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

partly regulated by powerplanta at Kezar Falls and by Ossipee and Silver Lakes, Pine 

River, Bickford and Colcord Ponds (combined capacity, 1,600,000,000 cu ft).

Revisions (water years).--WSP 756: Drainage area. WSP 1301: 1917-29(M).

Hating table, water year 1954-55, except periods of ice effect (gage 

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

1.3 

1.6 

2.0 

3.0

135 

2O7 

338 

810

4.O 

5.0 

5.9

1,430 

2,190 

3.OOO

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota]

Mean

Cf sm

In.

Oct.

1,110 

909

887

892

755

711

700

64O

382

4C30"

69O

722

695

664

735

1,490

1.580

1,460

1,360

1,320

1,280

1,240

1,160

854

843

832

*838

788

618

7O6

716

27,977

9O3

-

-

Nov.

700 

674

1,1415

2,O70

2,160

2,160

1,960

1,740

1,050

799

733

733

711

7O6

711

7OO

7OO

695

695

875

1,600

1,790

2,200

2,2OO

2,070

1,89O

1,510

1,470

1,78O

2.540

40,562

1,352

-

-

Dec.

*1,770 

1,600

1,340

974

956

926

920

914

914

926

926

904

892

887

1,315"

1,320

1,280

1,430

2,31O

2.450

2,430

2,500

2,110

1,9OO

1,75O

1,46O

1,25O

1,170

1,190

1,220

1,200

42 , 889

1,384

-

-

Jan.

1.15O 

1,120

1,O9O

1,070

1,040

9 SO

1.O2O

9 SO

970

960

950

94O

920

91O

900

885

950

970

950

920

87O

840

83O

81O

8OO

770

750

710

69O

675

650

28,070

905

-

-

Feb.

620 

615

6OO

580

580

575 500"

*670

680

685

70O

73O

7 SO

795

8OO

800

8OO

805

800

77O

720

7 2O

730

750

790

810

820

840

_

.....

20,165

720

-

-

Mar.

870 

910

970

1,OOO

1,030

1,020

l.OOO

9 SO

*97O

905

9 2O

950

970

1,OOO

1,050

1,100

1,180

1.200

1,200

1,170

1,150

1,130

1,100

1,090

1,070

1,040

1,010

980

960

974

1.O50

31,949

1,031

-

-

Apr.

1.220 

1,300

1,420

1,460

1,67O

1,880

2,O6O

2,290

2,290

2,3OO

2,450

2,580

2,690

2,660

2,660

2,790

2,890

2,840

2,760

2.950

2,810

2,660

2,490

2,320

2,210

*2,280

2,340

2,370

2,320

2,240

69,200

2,307

-

-

May

2. 1OO 

1,950

1,770

965

1,060

1,3OO

1,290

1,280

1,150

1,090

1,050

848

974

974

772

711

7OO

695

664

706

618

453

427

457

*427

448

540

584

574

674

648

27,869

899

-

-

June

1.17O 

1,580

1,43O

1,230

1,150

938

865

658

623

608

584 'STS"

1,050

1,520

1,550

1,720

l.SlO

904

799

603

584

*593

613

598

643

944

1,030

711

669

643

28,138

938

-

-

July

395 

325

560 B~5o~

555

380

350

325

293

304

304

297

28O

293

286

286

286

293

283

273

273

266

260

263

200

162

146

160

152

152

156

9,100

294

-

-

Aug.

148 

152

136

I3F

148

148

164

25O

304

308

327

390

705

898

876

1,O90

804

598

579

1,100

980

938

887

711

*513

3O8

290

283

269

273

266

14,979

483

-

-

Sept.

283 

366

370

335

358

358

346

338

325

330

342

350

327

334

334

319

311

319

319

26O

305

304

297

311

330

323

3OO

3O8

240 2"SO~

9,645

321

-

-

Calendar year 1954: Max 7,740 Min 338 Mean 1,343 Cfsm 2.96 In. 4O.22

Water year 1954-55: Max 2,950 Min 136 Mean 96O Cfsm 2.12 In. H8.78

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 26, Jan. 1 to Mar. 29.
SACO filVER BASIN 

Saco River at Cornish, Maine

Location. Lat 43°48'30", long 70°46'55", on left bank just upstream from highway bridge 

at Cornish, York County, half a mile downstream from Ossipee River.

Drainage area.--1,293 sq mi.

Records available. June 1916 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 263.48 ft above mean sea level, datum of 

1929. Prior to Oct. 30, 1919, chain gage on bridge just downstream at different 

datum.

Average discharge.--.39 years, 2,715 cfs.

Extremes. Maximum discharge during year, 10,900 cfs Apr. 19, 20 (gage height, 8.65 ft); 

minimum, 155 cfs Aug. 7 (gage height, 1.26 ft).

1916-55: Maximum discharge, 45,000 cfs Mar. 21, 22, 1936 (gage height, 21.90 ft, 

from floodmarks); minimum, 90 cfs Oct. 1, 1921 (gage height, 0.03 ft).

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

partly regulated by powerplants above station and by Ossipee, Silver, Conway, and 

Kesar Lakes, and Moose, Hancock, Pine River, Bickford, and Colcord Finds (combined 

capacity, 3,400,000,000 cu ft).

Revisions [water years). WSP 1301: 1917-18(M), 1936(M).

Rating table, water year 1954-55, except periods of ice effect 

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

1.8

1.9 

2.1 

2.5 

3.0

324

399

578

4.0 

5.0 

7.0 

8.7

1,800

3,230

7,000

11,000

Discharge, In cubic feet per second, water year October 1954 to September 1955

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

Tota]

Mean

Cfsm

In.

Oct.

3,340 

3,010

2,800

2,540

2,560

2,430

2,360

2,290

1,900

1.650

1,910

2,060

2,050

2,050

2,000

2,320

3,690

4,070

4,460

4,660

4.860

4,780

4,480

4,210

3,760

3,520

*3,330

2,830

2,650

2,740

2,720

94,110

3,036

-

"

Nov .

2,740 

2,760

3,770

5,480

5,500

5,680

5,600

5,380

4,680

4,210

4,020

3,820

3,570

3,370

3,180

3,070 

2,980

2 , 830

2,780

3,130

4,190

4,760

5,560

5,970

6,140

6,100

5,580

5,340

5,540

6,010

133,740

4,458

-

~

Dee .

*5,320 

4,950

4,570

4,020

3,790

3,580

3,330

3,120

3,060

3,000

2,960

2,880

2,780

2,660

3,180

3,650 

3,660

3,710

5,480

5,840

6,140

6.240

5,930

5,700

5,220

4,840

4,610

3,960

3,730

3,570

3,680

129,160

4,166

-

"

Jan.

5,610 

3,470

3,440

3,330

3,230

3,010

2,890

2,820

2,710

2,530

2,470

2,460

2,120

2,230

2,130

2,120 

2,200

2,120

2,020

1,900

1,820

1,800

1,780

1,880

1,880

1,820

1,720

1,760

1,800

1,760

1,720

72,550

2,340

-

-

Feb.

1,690 

1,680

1,620

1,660

1,560

1.520

1,540

1,760

1,820

1,780

2,200

2,620

2,500

2,600

2,580

2,500 

2,400

2,300

2,200

2,300

2,200

2,010

2,010

2,150

2,500

2,750

2,620

2,520

_

______

---- -

59,590

2,128

-

-

Mar.

2,540 

2,780

2,700

2,620

2,540

2,400

2,460

2,530

2,560

2,410

2,480

2,760

2,920

2,820

2,780

2,95O 

5,210

3,020

2,980

2,390

2,840

2,760

2,770

2,680

2,600

2,620

2,590

2,530

2,590

2,390

2,560

83,080

2,680

-

~

' Apr.

2,880 

3,180

5,530

3,770

4,190

4,780

5,280

5,800

5,890

6,120

6,520

6,790

7,180

7,460

7,850

8,520

9,040

10,100

10,600

10,900

10,700

10,400

10,000

9,450

8,910

*8,860

8,760

8,680

8,440

8,180

222,540

7,418

-

"

May

7,850

7,490

7,070

6,050

6,050

6,180

6,120

5,910

5,500

5,260

5,060

4,590

4,500

4,260

3,820

3,650 

3,210

3,170

3,090

2,840

2,660

2,540

2,200

2,110

2,000

1,950

2,000

1,810

1,790

1,980

1,960

124,410

4,013

-

"

June

5,010 

5,520

3,420

3,200

3,040

2,720

2,520

2,160

1,960

1,910

1,800

1,920

2,890

3,990

4,110

4,280 

3,890

3,150

2,900

2,560

2,270

2,120

2,160

2,090

2,180

2,680

2,900

2,540

2,410

2,250

82,330

2,744

-

~

July

1,740 

1,600

1,750

1,640

1,580

1,330

1,230

1,170

1,150

1,060

1,100

1,060

932

880

848

757 

679

657

583

690

641

620

614

538

514

488

403

424

420

399

360

27,837

898

-

"

Aug.

3 SO 

380

356

355

560

515

310

449

496

501

610

962

1,670

1,920

2,610

5,180 

2,800

2,530

2,520

2,770

2,500

2,270

2,090

*1,850

1,560

1,290

1,210

960

932

880

835

41,449

1,337

-

"

Sept.

817 

886

886

705

614

668

652

*641

594

533

630

718

695

553

620

538 

599

506

630

588

514

519

506

519

558

519

588

524

496

510

18,326

611

-

"

Calendar year 1954: Max 22,600 Mln 635 Mean 4,211 Cfsm 3.24 In. 44.04

Water year 1954-55: Max 1O,900 Mln 310 Mean 2,984 Cfsm 2.30 In. 31.20

* Discharge measurement made on this day. 

Note_.--Stage-discharge relation affected by Ic 27 to Mar. 5.
SAGO RIVER BASIN

Little Ossipee River near South Limington, Maine

Location. Lat 43°41'15", long 70°40'05", on right bank just upstream from highway

bridge, 2 miles southeast of South Limington, York County, and 4 miles upstream from 

mouth.

Drainage area. 161 sq mi.

Records available.--August 1940 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 260 ft (from topographic map).

Average discharge. 15 years, 297 cfs.

Extremes. Maximum discharge during year, 1.900 cfs Nov. 4 (gage height, 4.55 ft); minimum, 20 cfs May 29 (gage height, 1.50 ft).

1940-55: Maximum discharge, 5,300 cfs May 10, 1954; minimum, 4.7 cfs Nov. 7, 

1953 (gage height, 1.23 ft).

Maximum discharge known, 8,530 cfs Mar. 19, 1936 at "Ledgemere" dam 4 miles 

upstream.

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

record, which are fair. Plow regulated by Little Ossipee Lake, Ledgemere and Balch 

Ponds (combined capacity, 581,000,000 cu ft).

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Dec. 22 Dee. 23 to Sept. 30

1.5

1.6 

1.8 

2.0 106

279

3.0 520

3.5 845

4.0 1,310

4.5 1,840

1.5

1.6 

1.8 

2.0

2.5 269

3.0 509

3.5 835

4.0 1,260

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

2770"

164

228

251

247

243

232

224

220

220

251

263

247

275

402

Nov.

368

373

570

1,580

1.650

1,040

707

687

370

350

416

402

250

230

3TF

327

570 313

606 305

515 305

462 525

350 756

*318 830

350 714

340 535

327 436

327 436

292 436

255 600

255 756 

271 800

336 --

9,138

295

-

-

17,385

580

-

-

Dec.

*882

845

778

530

392

392

b390

b390

392

392

392

392

392

378

635

9D4

922

904

1.030

930

984

896

860

835

860

805

785

770

735 

720

695

21,207

684

-

-

Jan.

675 '560

635

330

342

346

b345

355

b345

346

342

b335

346

b340

b340

b340

346

350

350

b270

b215

2T6

b215

b215

b215

b215

b215

b215

b215 

b215

^

10,105

326

-

-

Feb.

213

b210

b210

206

199

192

202

*224

227

235

242

b405

b675

b550

439

b380

365

389

429

515

281

169

342

b470

b530

b545

504

455

-

9,803

350

-

-

Mar.

482

693

820

b760

b630

b545

b495

b455

*b420

413

439

610

755

707

641

700

872

828

667

555

509

477

482

460

455

460

450

384

360

498

17,401

561

-

-

Apr.

693

835

872

813

791

842

828

791

7OO

622

648

667

628

591

591

604

567

509

477

591

567

482

445

419

42£

*585

784

828

865 

813

19,872

662

-

-

May

634

5T9

538

521

395

227

231

235

235

235

235

224

220

220

220

216

213

199

195

175

132

126

126

126

126

*118

88

23

22

118

6,988

225

-

-

June

490

707

555

450

419

320

246

242

239

220

195

445

560

393

384

379

180

141

141

138

135

135

135

100

48

47

47

47

47 '47

7,632

254

-

-

July

75

118

Tie

us

115

112

112

112

112

112

112

112

110

66

44

37

37

33

33

33

33

33

33

33

32_

32

?3

39

60 

89

82

2,220

71.6

-

-

Aug.

77

75

77

79

99

141

144

147

147

150

150

153

370

532

526

509

493

250

44

41

38

36

37

37

37

37

37

37

96 

153

153

4,902

158

-

-

Sept.

153 rs?

153

153

153

153

153

150

150

150

150

150

150

150

150

X50

147

141

14T

141

141

141

141

141

141

141

141

141

141 

141

4,401

147

-

-

Calendar year 1954: Max 4,880 Min 27 Mean 528 Cfsm - In. -

Water year 1954-55: Max 1,650 Min 22 Mean 359 Cfsm - In. -

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Note. No gage-height record Dec. 23 to Jan. 3; discharge estimated on basis of weather records and 

records for nearby streams.
MOUSAM RIVER BASIN

Mousam River near West Kennebunk, Maine

Location. Lat 43 0 25'05", long 70°39'35", on right bank 100 ft upstream from highway 

bridge, 1-j miles downstream from Middle Branch, and 4 miles west of West Kennebunk, 

York County.

Drainage area. 105 sq mi.

Records available. October 1939 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 170 ft (from topographic map).

Average discharge. 16 years, 181 cfs (unadjusted).

Extremes. Maximum discharge during year, 1,330 cfs Dec. 15 (gage height, 3.75 ft); minimum, 3.2 cfs Sept. 23 (gage height, 0.31 ft).

1939-55: Maximum discharge, 2,830 cfs Sept. 12, 1954 (gage height, 5.69 ft); minimum, 1.1 cfs Aug. 22, 1941; minimum gage height, 0.29 ft Nov. 15, 16, 1947.

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

Flow regulated by Square Pond and Mousam and Estes Lakes (combined capscity, about 

700,000,000 cu ft) and by powerplants above station.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

0.4 

.5

.7

.8

1.0

5.4

10

16

24

34

62

1.5 

2.0 

2.5 

3.0 

3.4

182

356

590

874

1,110

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

240

196

193

200

176

170

176

152

71

9T

194

190

180

170

170

235

285 255"

220

205

192

176

138

143

176

140

162

182

146

103

160

5,501

177

-28.8

Nov. 

210

190

32o

755

BT5

391

343

325

280

250

213

245

220

193

220

205

196

200

200

265

454

500

382

325

249

300

245

230

415

540

9,576

319

+20.0

Dec.

*445

378

326

249

ZT5

293

266

263

259

285

256

270

289

260

1.050

925

550

440

679

590

515

440

404

387

339

317

322

313

343

400

396

12,502

403

-13.3

Jan.

343

365

436

378

334

309

301

239

256

285

236

219

219

207

143

182

224

185

196

179

165

117

117

168

162

160

157

174

855B127

6,756

218

-46.1

Feb.

116

106

108

108

59_

94

270

242

196

174

205

3T2" 468

263

204

165

182

171

117

154

199

171

220

297

317

249

253

297

-

5,727

205

-18

Mar.

355

490 4T5-

374

249

249

263

213

202

196

236

374

436

414

339

409

458

365

256

249

273

242

259

263

281

253

273

273

233

236

281

9,439

304

+39.4

Apr.

343

330

343

343

339

352

339

322

236

253

301

256

233

222

230

188

196

224

227

273

249

233

185

25T

263

309

*365

334

352

574

8,418

281

+46.2

May

309

35¥

253

219

202

202

160

174

215

184

168

158

150

77

77

150

140

132

124

118

54

42

104

110

110

*114

104

22

2?

42

106

4,354

140

-8.5

June

132

154

142

110

62

116

110

110

106

99

24

52

T55" 158

136

122

114

47

56

120

*102

102

100

99

23

28

98

100

102

90

2,964

98.8

-3.2

July

84

25

25

28

21

21

26

28

23

27

93

83

81

86

95

23

25

91

108

IC2

81

98

19

27

102

102

102

58

45

21

21

1,767

57.0

-54.3

Aug.

146

150

152

152

128

17

16

152

152

148

43

11

18

20

9.5

9.5

9.5

10

11

33

22

a!60 *Il2-

11

9.5

is 9.1

17

146

10

9.5

1,811.6

58.4

-25.2

Sept.

10

9.1

19

25

110

90

9.5

85

49

17

10

9.5

9.1

9.5

9.5

25

17

10

11

84

100

61

19

19

~9.5 128

10

9.5

9.5

1,000.7

33.4

+6.3

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

148 

1.41 

1.63

339 

3.23 

3.60

Calendar year 1954 : 

Water year 1954-55:

390 

3.71 

4.28

172 

1.64 

1.89

187 

1.78 

1.85

343 

3.27 

3.77

327 

3.11 

3.47

132 

1.26

1.45

Observed

Max 2,310 Hin 28 Mean 293 

Max 1,030 Hin 9.1 Mean 191

95.6 

0.910 

1.02

2.7 

0.026 

0.03

33.2 

0.316 

0.36

39.7 

0.378 

0.42

Adjusted

Mean 296 Cfsm 2.82 In. 38.26 

Mean 184 Cfsm 1.75 In. 23.77

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per- second, in Square Pond and Mousam and Estes 

Lakes.

a No gage-height record; discharge estimated on basis of recorded range in stage.
PISCATAQUA RIVER BASIN 75 

Salmon Palls River near South Lebanon, Maine

Location. Lat 43 0 19'40", long 70°55'40", on left bank at Stair Palls, l£ miles south of 

South Lebanon, York County, and Z\ miles upstream from Little River.

Drainage area. 147 sq mi.

Records available. November 1928 to September 1955.

~Gage. Water-stage recorder. Datum of gage is 179.60 ft above mean sea level, datum of 

Ave rage discharge. 26 years (1929-55), 240 cfs (unadjusted).

Extremes. Maximum discharge during year, 1.560 cfs Dec. 15 (gage height, 5.37 ft); mini- 

 mum, 17 cfs Oct. 2 (gage height, 1.26 ft).

1928-55: Maximum discharge, 5,490 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 arid 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.

Revisions (water years). WSP 1831: 1930-31(M), 1933(M). WSP1301: 1936-37.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

230

27

83

260

255

265

275

245

215

54

240

270

260

265

255

295

126

290

250

245

265

260

176

65

215

245

250

*270

250

220

77

6,698

216

-52.9

Nov.

280

270

700

985

645

470

355

320

305

320

305

300

245

46 265"

290

295

275

265

270

455

505

440

425

385

390

320

116

620

1,080

11,942

398

+52.0

Dec.

760

*590

445

420

320

285 3SS"

290

305

320

330

315

290

295

1,510

1,050

610

605

1,170

1,220

960

730

630

540

475

475

360

410

470

515

520

17,315

559

+5.9

Jan.

510

510

575

520

480

*470

440

425

445

365

375

375

360

370

370

350

330

340

345

355

405

345

350

330

350

325

90

97

320

380

370

11,672

377

-175.4

Feb.

373

350

350

364

293

310

386

342

319

301

380

755

365

360

258

351

301

293

293

284

271

276

355

432

440

409

409

432

-

10,032

358

-35.9

Mar.

542

672

5T9

48O

450

432

418

418

404

378

436

595

563

505

480

595

633

516

470

465

460

450

470

475

485

490

460

440

422

455

526

15,164

489

+27.4

Apr.

563

568 542"

511

537

547

531

531

495

490

511

485

475

470

480

470

360

342

368

324

284

263

280

214

242

319

*364

350

427

418

12,761

425

+166.7

May

350

514

230

222

218

218

230

214

214

210

199

162

122

125

141

169

125

141

108

116

90

44

100

114

108

*176

135

66

27

32

116

4,836

156

+19.8

June

155

203

187

214

234

214

180

151

145

138

77

155

263

203

173

176

151

85

114

135

135

135

122

119

72

56

108

100

95

116

4,411

147

+6.4

July

92

46

25

33

48

44

30

50

38

29

155

156

81

83

92

63

37

119

119

122

111

129

74

57

103

129

100

119

119

77

56

2,486

80.2

-76.1

Aog.

106

88

72

77

88

63

59

88

83

81

97

111

92

55

111

90

103

88

114

77

29

88

111

*108

83

90

68

25

155

141

116

2,737

88.3

-23.2

Sept.

116

114

83

24

22

124

138

*TTO~

114

81

110

85

134

92

100

92

59

20

lie

126

95

85

92

50

20

100

97

88

77

95

2,659

88.6

-97.5

Adjusted for change In

Mean 

Cf sm 

In.

163 

1.11 

1.28

45C 

3.06 

3.41

Calendar year 1954: 

Water year 1954-55:

565 

3.84 

4.43

202 

1.37 

1.58

322 

2.19 

2.28

516 

3.51 

4.05

592 

4.03 

4.50

176 

1.20 

1.38

Observed

Max 4,430 Mln 27 Mean 396 

Max 1,310 Mln 20 Mean 281

153 

1.04 

1.16

4.1 

0.028 

0.03

65.1 

0.443 

0.51

-8.9 

-0.061 

-0.07

Adjusted

Mean 408 Cfsm 2.78 In. 37.68 

Mean 265 Cfsm 1.80 In. 24.54

* Discharge measurement made on this day.

t Change In contents, equivalent in cubic feet per second, In Great East and Lovell Lakes and 

Horn, Wilson and Milton Ponds.

Mote.--Negative figures of adjusted discharge and runoff indicate that evaporation and seepage 

from reservoirs exceeded Inflow.
PISCATAQUA RIVER BASIN

Oyster River near Durham, N. H.

Location. Lat 43°08'55", long 70°58'00", on left bank 200 ft upstream from bridge on 

[J. S. Highway 4, Z\ miles west of Durham, Straffor-d County, and 7 miles upstream from 

mouth.

Drainage area. 12.1 sq mi.

Records available.--October 1934 to September 1955. Prior to November 1934 monthly discharge only, published in WSP 1301.

Gage. Water-stage recorder and concrete control. Altitude of gage is 70 ft (from topographic map).

Average discharge. 21 years, 19.5 cfs.

Extremes. Maximum discharge during year, 374 cfs Dec. 15 (gage height, 3.29 ft); minimum, 0.75 cfs Aug. 10.

1934-55: Maximum discharge, 862 cfs Sept. 11, 1954 (gage height, 5.47 ft); maximum gage height, 7.45 ft Mar. 19, 1936; minimum discharge, 0.39 cfs Aug. 9-11, 1949.

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

Rating table, water year 1954-55, except periods of ice effect (gage 

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

0.83

1.1

2.35

4.1

9.5

0.7 

1.0 

1.5 

2.0

3.0

18

36

76

141

315

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

13

12

11

11

10

11

11

10

9.5

9.6

12

12

11

10

9.2

19

15

12

11

10

9.6

9.0

8.6

8.3

7.8

7 .7

872

8.2

11 

17

19

343.7

11.1

0.917

1.06

Nov.

16

13

*105

~5T 107

46

37

30

27

23

21

20

19

18

17

16

15

16

17

54

95

71

50

39

36

34

32

30

68 

74

1,213

40.4

3.34

3.73

Dec .

*54

42

31

26

24

21

20

*20

21

27

27

21

19

21

286

152

b78

70

104

74

52

43

46

43

37

30

29

30

41

46

52

1,587

51.2

4.23

4.88

Jan.

43

50

60

49

36

34

29

26

22

21

19

16

16

14

12

12

11

10

10

3.4

8.2

8.0

7.8

7.8

b7.7

b7.6

b7.2

b6.2

b6.0

b5.5 

b5.0

576.4

18.6

1.54

1.77

Feb.

b4.8

b4.3

b4.0

b4.0

b4.0

bS'.O

b25

16

9.5

10

40

109

TT

19

14

13

12

20

22

23

25

29

70

71

54

45

39

52

-

784.6

28.0

2.31

2.41

Mar.

98

114 ~68

40

36

32

30

27

24

25

54

75

63

55

48

67

b68

b50

b38

31

30

27

42

47

46

45

54

b41

b38

41

*48

1,502

48.5

4.01

4.62

Apr.

53

52

48

43

41

40

39

36

30

29

29

27

25

25

27

27

24

2229"

36

29

27

27

25

36

50

55

45

55

51

1,082

36.1

2.98

3.33

May

39

32

*27

23

21

£1

20

20

19

17

15

14

14

18

17

15

13

12

11

9.5

8.9

8.0

7.4

7.0

T78

14

13

10

8.8

8.2 

8 . 6

479.2

,15.5

1.28

1.47

June

23

27

*19

14

12

11

9.5

8.9

8.3

7.4

6.7

28

34

24

16

12

9.0

7.6

6.3

7.5

6.6

6.4

5.6

5.3

5.3

5.8

5.2

4.3

3.7

3 2

342.6

11.4

0.942

1.05

July

2.8

2.6

2.6

2.2

2.05

2.2

2.8

2.4

1.9

1.75

1.6

*1.45

1.45

1.35

1.3

1.3

1.35

1.2

1.3

1.15

1.05

1.0

.92

1.0

1.0

.92

1.15

3_.4

1.35

1.15

51.59

1.66

0.137

C.16

Aug.

1.1

.97

.87

.87

.92

.92

.97

.92

.83

783

2.8

4.7

5.0

3.0

*2.05

1.55

1.3

1.55

12

12

4.6

2.8

4.1

11

5.0

3.2

2.6

2.4

2.05

1.9

96.65

3.12

0.258

0.30

Sept.

2.05

1.8

1.65

1.55

1.45

1.3

1.2

1.15

1.15

1.15

1.2

1.3

1.1

1.1

1.1

1.1

1.05

1.0

1.0 1.1

1.05

.97

1.0

3.5

4.6

2.5

1.85

2.6

2.8

*2.05

48.42

1.61

0.133

0.15

Calendar year 1954 : Max 516 Mln 1.65 Mean 33.0 Cfsm 2.73 In. 37.00

Water year 1954-55 : Max 286 Mln 0.83 Mean 22.2 Cfsm 1.83 In. 24.93

Peak discharge (base, 170 cfs), --Dec. 15 (6 a.m.) 374 cfs (3.29 ft); Feb. 12 (l a.m.) 247 cfs

(2.64 ft); Mar. 1 (7 p.m.) 203 cfs (2.385 ft).

Discharge measurement made on this day. 

b Stage-discharge relation affected by ic
PISCATAQUA RIVER BASIN

Lamprey River near Newmarket, N. H.

Location. Lat 43°06'05", long 70°57'20", on right bank 200 ft upstream from Packers 

Falls, 2 miles northwest of Newmarket, Rockingham County, and 4.6 miles upstream from 

mouth.

Drainage area. 183 sq mi.

Records available.--July 1934 to September 1955.

Gage . Water-stage recorder. Altitude of gage is 40 ft (from topographic map).

Average discharge. 21 years, 282 cfs.

Extremes.--Maximum discharge during year, 1,880 cfs Dec. 16 (gage height, 7.05 ft); minimum daily, 12 cfs Aug. 5-11, Sept. 17-19.

1934-55: Maximum discharge, 5,490 cfs Mar. 20, 1936 (gage height, 14.88 ft), from 

rating curve extended above 3,100 cfs on basis of computation of flow over dam at gage 

height 14.69 ft; minimum daily, 1 cfs Oct. 21, 1935.

Remarks. Records excellent except those below 150 cfs, which are good, and those for 

periods of ice effect, which are fair. Flow regulated by Pawtuckaway and Mendums 

Ponds (combined capacity, about 600,000,000 cu ft).

Revisions (water years). WSP 1231: 1936-37.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

0.5

.7

.9

1.1

1.5

2.0 

3.0 

5.0

176

382

980

1,850

Discharge, In cubic feet per second, water year October 1954 to September 1935

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18.

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

335

317

309

292

278

264

256

242

228

217

211

213

205

194

180

181

181

221

268

244

215

192

174

160

150

139

133

130

135

185

217

6,666

215

1.17

1.35

Nov.

224

221

678

1,060

1,100

1,020

727

524

416

356

313

*288

300

305

296

280

266

258

262

424

724

808

808

694

558

483

431

406

569

742

15,541

518

2.83

3.16

Dec.

*772

694

552

430

375

315

375

480

488

394

331

330

365

330

1,540

,750

,440

,170

,170

,190

1,210

920

790

710

630

540

485

465

521

560

688

22,010

710

3.88

4.47

Jan.

640

634

694

667

569

515

530

440

410

440

410

360

320

320

355

330

310

295

300

275

*255

240

220

210

200

185

170

140

155

135

150

10,854

350

1.91

2.21

Feb.

130

135

130

130

127

127

285

315

310

270

295

710

555

521

396

309

274

309

311

333

358

380

540

694

694

616

491

499

_

10,244

366

2.00

2.08

Mar.

620

892

882

650

490

400

380

355

315

285

380

646

745

742

631

643

718

673

558

431

370

372

462

494

521

532

613

555

507

494

*546

16,902

545

2.98

3.43

Apr.

634

691

697

661

610

580

572

546

505

467

436

414

399

387

387

404

401

392

358

404

404

401

382

370

408

558

661

670

715

670

15,184

506

2.77

3.09

May

560

473

*404

353

307

288

272

258

262

248

230

21:

196

211

202

185

163

150

135

127

118

110

102

95

106

242

205

176

150

128

121

6,788

219

1.20

1.38

June

194

274

272

222

185

165

150

138

*125

111

103

200

351

317

274

219

169

135

112

102

101

99

94

86

86

85

84

81

77

69

4,680

156

0.852

0.95

July

59

51

46

41

39

35

35

33

30

28

32

25

*22

21

21

21

21

20

18

16

16

15

15

14

13_

13

13

21

22

19

16

791

25.5

0.139

0.16

Aug.

15

15

13

13

IS.

12

12

12

12

12

12

14

28

35

*45

43

39

37

72

125

114

97

86

78

63

53

46

42

34

30

28

1,249

40.3

0.220

 0.25

Sept.

28

26

24

22

21

20

17

16

15

14

14

15

14

13

13

13

12

12

12

67

16

24

39

82

102

85

81

76

39

960

32.0

0.175

0.20

Calendar year 1954: Max 3,990 Mln 23 Mean 456 Cfsm 2.49 In. 33.73

Water year 1954-55: Max 1,750 Mln 12 Mean 306 Cfsm 1.67 In. 22.73

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 4-8, 12-14, 22-27, Jan. 1, Jan. 6 to Feb. 4, 

Feb. 7-12, 23, Mar. 4-11. Discharge In cubic feet per second per square mile and runoff In inches 

may not represent natural flow because of regulation.
78 MERRIMACK RIVER BASIN

Pemigewasset River at Woodstock, N. H.

Location. Lat 43°58'35", long 71 "40"50", on right bank 0.2 mile east of Woodstock, 

Grafton County, and 0.7 mile upstream from Eastman Brook.

Drainage area.--193 sq mi.

Records available.--October 1939 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 615 ft (from topographic map).

Average discharge. 16 years, 524 cfs.

Extremes. Maximum discharge during year, 6,000 cfs Apr. 15 (gage height, 7.67 ft); minimum daily, 64 cfs Aug. 5.

1939-55: Maximum discharge, 22,800 cfs Nov. 26, 1950 (gage height, 12.05 ft), 

from rating curve extended above 9,300 cfs by logarithmic plotting; minimum daily, 

42 cfs Feb. 11, 1948.

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. Some diurnal 

fluctuation caused by powerplant above station.

Rating tables, water year 1954-55, except periods of ice effect ( 

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

Oct. 1 to Nov. 21 Nov. 22 to Sept. 3O

2.9 

3.2 

3.5 

4.0

234

349

498

815

5.0 1,710

6.0 2,850

7.0 4,550

2.2 

2.4 

2.7 

3.0 

3.5

175

279

515

4.0 

5.0 

6.0 

7.0 

8.0

825

1,710

2,850

4,550

6,800

Discharge, in cubic feet per second, water year October 1954 to Septemler 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

363

336

315

460

540

411

354

324

307

307

462

525

406

345

315

1,970

1,010

616

525

462

421

377

349

324

307

288

342

472

372 

467

472

14,544

469

2.43

2.80

Nov.

396

345

*744

1,200

724

569

488

446

411

368

349

341

307

299

288

258

266

277

284

1,280

3,550

2,340

1,140

818

702

617

539

521

587 

557

21,011

700

3.63

4.05

Dec.

471

*400

336

283

345

264

307

303

299

307

275

246

242

210

518

525

340

628

1,890

825

563

420

360

390

335

300

360

370

599

434

13,684

441

2.28

2.64

Jan.

353

371

349

*323

287

299

260

240

250

260

240

230

240

210

215

225

210

190

190

185

175

185

185

175

170

170

170

155

150 

145

140

6,947

224

1.16

1.34

Feb.

*135

130

125

125

125

130

200

190

170

160

220

380

320

260

235

220

210

200

190

180

190

200

300

620

460

340

299

279

-

6,593

235

1.22

1.27

Mar.

291

311

265

235

238

235

221

*207

267

232

311

638

ISlF

362

319

376

460

367

336

297

295

279

275

264

257

249

246

218

235 

246

303

9,257

299

1.55

1.78

Apr.

429

46T

510

482

675

888

1,170

918

653

978

2,290

*1,950

1,390

1,430

5,160

4,380

2,600

2,160

3.560

3 , 100

2,230

1,900

2,350

2,020

1,740

1,590

1,620

1,410

1,700

1,850

53,599

1,787

9.26

10.33

May

2,090

2,20O

2,380

2,400

2,74O

1,980

1,460

1,750

1,750

1,200

978

895

867

806

740

*695

677

563

515

476

434

404

434

440

429

493

404

353

323

451

31,917

1,030

5.34

6.15

June

1,990

1,030

677

533

482

409

362

332

303

272

279

422

1,270

740

683

488

390

340

299

272

275

319

386

322

861

498

386

311

272 

*246

15,449

515

2.67

2.98

July

218

201

249

191

175

249

232

175

152

141

128

115

111

111

106

120

146

123

108

95

89

87

85

79

79

74

77

102

87

77

<J71

4,053

131

0.879

0.78

Aug.

d67

d67

*d67

d66

d64

d89

96

248

113

87

278

442

240

1,610

575

323

387

970

409

287

210

188

243

460

257

197

166

143

133 

123

133

8,738

282

1.46

1.68

Sept.

133 118-

108

99

97

95

89

81

*81

83

85

91

89

81

79

81

77

d71

d69

d§7_

d67

d67

d67

d67

74

83

77

74

83 

95

2,528

84.3

0.437

0.49

Calendar year 1954: Max 6,520 Mln 85 Mean 718 Cfsm 3.72 in. 50.48

Water year 1954-55: Max 5,160 Mln 64 Mean 516 Cfsm 2.67 In. 36.29

Peak discharge (ba 7,100 cfs).--No peak above base.

Discharge measurement made on this day.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

recorded graph, weather records, and records for Pemigewasset River at Plymouth ard Ammonoosuc River 

at Bethlehem Junction.

Note. Stage-discharge relation affected by Ice Dec. 22-28, Jan. 7 to Feb. 25, Kar. 3, 23.
MERRIMACK RIVER BASIN 79

Baker River near Rumney, N. H.

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. October 1928 to September 1955. Prior to November 1928 monthly discharge only, published in WSP 1301.

Gage. Water-stage recorder. Concrete control since Sept. 10, 1938. Altitude of gage 

is 495 ft (from topographic map).

Average discharge. 27 years, 260 cfs.

Extremes, Maximum discharge during year, 3,310 cfs Apr. 15 (gage height, 6.54 ft); minimum, 20 cfs Aug. 5, Sept. 21.

1928-55: 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 for periods of ice effect, which are fair.

Revisions (water years). WSP 726: Drainage area. WSP 781: 1934(M). WSP 1231: 

1929-33(M), 1934.

Rating table, water year 1954-55, except periods of Ice effect 

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

2.3 

2.5 

2.8 

3.1

46

113

212

3.5 

4.0 

5.0 

7.0

395

720

1,620

3,900

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

139

130

128

148

320

208

186

165

155

162

224

270

212

179 

165

607

462

320

256

228

201

182

168

155

145

139

145

201

186

296

6,765

218

1.52

1.76

Nov.

240

208

*483

982

552

400

325

278

252

220

197

194

175

165 

162

142

145

149

152

368

1,520

17440"

678

474

390

339

306

296

468

510

12,210

407

2.85

3.18

Dec.

395

*320

240

195

224

145

175

182

182

194

179

158

155

130 

560

538

355

479

1,180

622

450

385

315

325

230

200

236

228

274

275 

270

9,796

316

2.21

2.55

Jan.

216

228

220

*201

172

182

145

130

135

152

136

130

136

110 

115

122

113

108

105

92

83

93

94

94

90

90

85

79

80

75 

70

3,881

125

0.874

1.01

Feb.

67

*63

60

60

60

63

88

120

125

110

115

210

224

186 

165

142

130

128

122

116

119

139

235

474 400"

296

232

212

-

_---_

4,461

159

1.11

1.16

Mar.

270

395

287

216

215

201

175

*155

150

Tfz

280

485

410

320 

285

360

485

355

280

250

236

215

200

197

186

182

175

155

150

175 

268

7,885

254

1.78

2.05

Apr.

448

559

671

559

798

1,130

1,450

1,060

741

1,120

2,070

*1,730

1,180

1,230 

2,910

2,340

1,460

1,070

1,800

1,730

1,130

854

968

769

762

918

926

713

657

587

34,340

1,145

8.01

8.93

May

545

492

474

434

417

390

320

364

380

310

265

240

224

212 

190

175

*172

155

142

136

122

113

110

110

113

194

142

122

113

314

246

7,736

250

1.75

2.01

June

1,400

664

395

287

244

197

162

142

128

110

103

168

753

406 

301

205

158

128

108

95

97

136

209

152

275

201

155

125

100

*83_

7,687

256

1.79

2.00

July

74

185

353

155

108

212

201

125

95

80

67

58

52

48 

45

46

54

48

86

54

42

36

33

32

32

32

29

45

46

36 

30

2,539

81.9

0.573

0.66

Aug.

28

24

*23

21

21

34

36

44

36

28

134

274

158

1,300 

454

256

252

854

385

252

175

130

110

108

95

78

69

65

58

52

50

5,604

181

1.27

1.46

Sept.

52

46

42

40

38

34

*32

29

29

29

28

29

30

29 

26

26

25

25

24

23

21

21

21

29

52

39

32

34

44

40

969

32.3

0.226

0.25

Calendar year 1954: Max 3,820 Mln 25 Mean 376 Cfsm 2.63 In. 35.74

Water year 1954-55: Max 2,910 Mln 21 Mean 285 Cfsm 1.99 In. 27.02

Peak discharge (base, 3.600 cfs). No peak above base. 

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 4, 6, 7, 15, 17, 21, 22, 25, 26, 30, Jan. 7-9, 

14, 15, Jan. 20 to Feb. 12, Mar. 5, 7-9, 12-20, 22, 23, 28, 29.
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.--622 sq mi.

Records available.--October 1903 to September 1955. Records for April 1886 to September 

1903, published in WSP 124, have been found to be unreliable and should not be used.

Gage. Water-stage recorder. Datum of gage is 457.07 ft above mean sea level, datum of 

19S9. 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. 52 years, 1,368 cfs.

Extremes.--Maximum discharge during year, 14,500 cfs Apr. 16; maximum gage height, 9.98 ft 

Apr. 16; minimum discharge, 143 cfs Aug. 5; minimum daily 146 cfs Aug. 5.

1903-55: 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 computations of 

flow over dam at gage heights 23.0, 27.4, and 29.0 ft; minimum, 39 cfs Oct. 1, 3, 4, 

1948; 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). WSP 471: 1912-13, calendar years. WSP 726: Drainage area. 

WSP 123] TZST: 1904-11, 1913-14, 1915-16(M) , 1917-18, 1919(M) , 1920-25, 1926-27(M) ,

1929-31(M). See also Records available.

Rating tables, water year 1954-55,

hei 

(Rate of change in stage

Oct. 1 to May 31

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

factor Apr. 15, 16, 19)

ept periods of ice effe 

fe 

Apr. 15, 16,

June 1 to Sept. 30

0.7 325

1.3 805

2.0 1,590

3.0 2,990

5.0 5,700

9.0 12,400

0.2

.6

143

307

580

2.0 

5.0

1,650

5,700

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

920

862

824

915

1,700

1 , 200

1,030

910

862

862

1,060

1,460

1,180

990

890

5.690

3,370

2,050

1 , 600

1,370

1,210

1,090

1 , 000

930

862

814

834

1,140

1,010

1,270 

1,330

39,235

1,266

2.04

2.35

Nov.

*1,180

1,040

1,670

3,790

2,470

1,880

1.520

1,330

1,210

1,080

1 , 000

970

881

824

824

733

760

751

776

1,810

7,640

8,050

3,750

2,640

2,140

1,860

1,620

1,550

2,040

*2,330

60,121

2,0u4

3.22

3.59

Dec .

1,810

1 , 450

1,130

940

1,070

750

900

900

960

1,030

980

820

760

710

1,550

,150

,350

,770

,050

, 000

,050

,200

,100

,300

,250

900

,150

,100

* ,200

,500 

,350

44,180

1,425

2.29

2.64

Jan.

1,000

1.15u

1,150

1,000

820

9uO

780

700

720

740

680

660

700

640

580

640

620

560

560

540

500

540

540

520

500

500

500

*465

450

425

Jf-jC t^Ci

20,485

661

1.06

1.22

Feb.

390

370

360

360

360

370

425

630

600

520

540

900

1,300

90O

800

740

720

680

640

600

580

620

1,000

1,500

1.800

1,200

1 , 000

910

-

-----

20,815

743

1.19

1.24

Mar.

1,100

1,400

1,250

1,050

880

880

840

700

66O

720

940

1 , 800

g , pop

1,500

1,250

1 , 40U

1,900

1,500

1,310

1,100

1,000

920

940

860

800

740

720

*700

710

733

990

33,293

1,074

1.73

1.99

Apr.

1.650

2,140

2,570

2,150

3,OuO

3,970

5,010

4,140

2,850

3,300

7,260

7,370

4,750

4,280

11,500

12,500

7 , 700

5,240

7,690

9,520

6,120

4,520

5,550

4,660

4,160

4,450

*4,490

3,840

5,840

5,70O

155,500

5,110

8.22

9. 17

May

5,900

3,840

4,100

5,930

4.190

3,720

2 , 700

2,84u

3,120

2,390

1,950

1,720

1,600

1,510

1,560

1,220

1,190

1,040

94u

872

805

742

*742

751

733

872

778

679

670

1,430 

1,130

57,464

1,854

2.98

3.44

June

5.250

5,240

1,950

1,420

1,270

1,070

910

820

730

661

625

740

2,880

2,060

1,570

1,160

890

750

652

580

572

670

820

760

1,750

1,190

950

730

*616

*540

57,766

1,259

2.02

2.26

July

486

478

965

625

486

602

750

524

428

585

336

287

267

257

244

235

282

267

277

244

217

205

194

198

190

185

183

*222

226

194

12S

10,610

54?

0.550

0.65

Aug.

165

162

153

149

146

169

222

288

248

190

284

1,190

598

5.600

1,940

980

978

5,590

1,690

1,060

710

524

471

660

540

415

564

556

302

*287 

282

22,493

726

1.17

1.54

Sept.

297

277

262

244

255

226

222

209

198

194

198

202

202

194

190

190

186

183

175

175

165

159

T59

190

272

244

209

209

*297

297

6,460

215

0.346

0.59

Calendar year 1954: Max 18, luu Min 202 Mean 1,966 Cfsm 3.16 In. 42.90

Water year 1954-55: Max 12,300 Min 146 Mean 1,387 Cfsm 2.23 In. 30. E6

Peak discharge (base, 12,600 cfs).--Apr. 16 (1:3o a.n

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec.

= fa; Apr. 19 (12 p.n 

29, Mar. 31.
MERRIMACK RIVER BASIN 

Squam River at Ashland, N. H.

81

Location.--Lat 43°42'15", 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 1955.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 545 ft (from topographic map).

Average discharge.--16 years, 93.6 cfs.

Extremes.--Maximum discharge during year, 159 cfs Jan. 14-17 (gage height, 10.84 ft); minimum daily, 71 cfs Oct. 30, May 5-11.

1939-55: Maximum discharge, 498 cfs Apr. 11, 1951 (gage height, 11.93 ft); minimum 

daily, 14 cfs Feb. 4, 1940.

Remarks. --Records excellent. Flow completely regulated by Squam and Little Sq';am Lakes.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

10.3 57

10.5 89

10.7 127

10.9 . 173

Discharge ubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10 

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

123

123

121

119

119

119

121

119

119

119 

119

119

119

119

121

119

119

119

123

125

123

123

123

123

123

123

123

123

104

71

97

3,660

118

_

-

Nov.

123

123

*119

119

119

119

119

119

125

127 

125

125

123

123

123

111

103

103

103

103

105

103

103

103

103

103

103

103

103

115

3,398

113

_

-

Dec. 

*127

127

125

125

125

123

123

123

123

123

123

123

123

123

123

123

123

125

129

127

127

127

125

125

125

125

125

125

127

127

127

3,869

125

_

-

Jan.

125

125

125

*125

125

127

127

125

125

125

125

125

145

159

159

159

156

156

156

156

156

156

156

156

156

156

138

125

125

125

4,324

139

_

-

Feb.

*125

125

125

125

125

125

127

125

125

125

125

125

125

125

125

125

125

125

125

125

123

T25

125

123

123

123

123

-

- - - - -

3,492

125

_

-

Mar.

125

125

123

123

123

123

123

123

123

127

T2T

127

127

127

127

127

127

125

123

125

123

121

T2T

121

121

121

121

121

123

125

3,843

124

_

-

Apr.

125

125

125

125

127

127

127

129

129

129

127

129

*129

114

86

86

86

87

89

89

79

73

3

3

3

3

3

3

3

3.0S2

1C 3

_

-

May

73

73

73

73

li

71

71

71

71

71

73

73

73

73

73

*73

73

73

73

73

73

73

73

73

3

' 3

3

3

3

_±

2,251

72.6

_

-

June

76~ 78

76

75

75

73

73

73

73

73 

73

73

75

75

75

75

75

75

75

75

75

76

76

76

76

76

76

76

7fi

76

2,25f

75.0

_

-

July

76

76

76

78

78

78

78

78

78

79

79

79

78

78

78

78

78

7S

78

78

78

78

78

79

79

79

79

79

"84 84

2,432

78.5

_

-

Aug.

84

81

79

*79

79

79

79

79

79 

79

79

79

79

79

!§

78

79

79

79

78

78

78

84

9i93"

93

93

93

93

93

93

2,568

82.8

-

-

Sept.

9"3 93

91

91

. 91

91

89

89

89 

91

91

91

89

89

89

89

89

89

89

89

89

89

89

89

87

87

87

86

86

86

2,677

89.2

-

-

Mean 126 

Mean 104

Discharge measurement made
MERRIMACK RIVER BASIN 

Smith River near Bristol, N. H.

Location.--Lat 43°34 1 00", long 71°44'50", on right bank in Hill, Merrimacl-- County,

 1.5 miles upstream from mouth and If miles southwest of Bristol, Grafton County.

Drainage area.--85.8 sq mi.

Records available.--May 1918 to September 1955.

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. 37 years, 143 cfs.

Extremes.--Maximurn discharge during year, 1,020 cfs Apr. 11 (gage height, 5.30 ft); minimum 

daily, 9.6 cfs Aug. 4, 5.

1918-55: Maximum discharge, 8,100 cfs Mar. 19, 1936 (gage height, 16.09 ft, from 

floodmarks), from rating curve extended above 2,700 cfs on basis of contracted-opening 

determination of peak flow; minimum daily, 2.7 cfs Aug 2, 1933.

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

£o~T954, some diurnal fluctuation caused by small mill above station; greater fluctuation prior to 1941.

Revisions (water years) . WSP 711: Drainage area. WSP 781: 1934. WSP 1231: 1919, 

1920-21JM), 1922-31, 1932-33(M), 1941-43.

Rating table, water year 1954-55, except periods of Ice effect (ga^e 

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

1.9

2.0 

2.2 

2.5 

3.0

3.5 

4.0 

5.0 

5.5

207

380

860

1,140

Discharge, In cubic feet per second, water year October 1954 to Septemter 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

59

56

53

57

56

53

51

50

48

45

62

73

70

62

56

109

151

TIT

90

81

81

79

75

67

55

50

52

57

62

80

96

2,150

69.4

0.809

0.93

Nov.

101

*91

214

542

466

286

213

168

138

115

96

90

83

79

15

87

130

87

82

159

472

585 402"

269

224

197

178

171

241

327

6,371

212

2.47

2.76

Dec.

293

227

*171

133

127

98

92

90

95

103

104

92

92

81

42S

560

310

375

705

52TJ

300

210

170

176

140

115

119

121

142

161

151

6,498

210

2.45

2.82

Jan.

123

T73

119

111

*91

103

88

80

76

76

70

66

67

57

58

59

59

55

53

49

44

45

45

47

47

46

45

42

40

38

35

2,057

6R.4

0.774

0.89

Feb.

33

*31

30

30

3J.

31

54

66

77

82

71

106

125

123

93

76

68

66

65

65

65

67

85

174

269

227

161

127

-

- - _ __

-" --

2,498

89.2

1.04

1.08

Mar.

161

334

342

224

164

131

111

*99

93

95

135

292

367

300

257

342

440

305

230

185

176

149

138

131

127

121

113

95

93

115

175

6,040

195

2.27

2.62

Apr.

330

480

546

438

538

675

755

715

542

570

840

*882

745

615

745

820

725

551

510

600

506

394

363

334

376

615

60S

484

380

519

16,998

567

6.61

7.37

May

263

232

210

191

181

171

156

149

151

140

123

111

101

99

92

*84

83

81

75

69

64

59

55

53

58

91

90

69

80

311

566

4,058

131

1.53

1.76

June

784

515

269

184

154

129

106

91

81

72

67

142

315

286

197

133

95

76

63

54

51

62

*111

96

96

92

76

62

53

43_

4,555

152

1.77

1.97

July

37

33

32

29

27

46

57

44

33

27

24

22

20

18

17

18

18

17

17

15

14

13

12

12

JU

11

12

25

25

18

15

719

23.2

0.270

0.31

Aug.

13

11

*10

9.6

976

11

17

20

16

13

36

81

106

468

655

488

232

158

151

144

96

70

63

59

49

41

37

34

31

27

27

3,163.2

102

1.19

1.37

Sept.

27

26

25

22

20

18

16

15

14

14

14

14

14

13

14

13

13

12

12

12

11

11

10

22

2-L

25

21

22

25

25

529

17.6

0.205

0.23

Calendar year 1954 : Max 1,510 Mln 10 Mean 192 Cfsm 2.24 In. 30.31

Water year 1954-55: Max 882 Mln 9.6 Mean 152 Cfsm 1.77 In. 24.11

Peak discharge 

* Dlscha Measure

Note.--Stage-discharge relation affect 

14, 15, Jan. 28 to Feb. 4, Mar. 17-20, 2

1,150 cfs). No peak above base, 

t madeon this day.

6, 7, 15-17, 23, 25, 26, Jan. 7,

31 to Apr. 2.
MERRJMACK RIVER BASIN 

Lake Winnipesaukee at The Weirs, N. H.

83

Location. Lat 43°36'20", long 71°27'25", 

Belknap County.

ft north of highway bridge at The Weirs,

Drainage area. 363 sq mi at outlet at Lakeport. .

Records available.--September 1933 to September 1955. Prior to November 1937 month-end 

contents only, determined from gage at Lakeport, published in WSP 1301.

Gage.--Water-stage recorder. Datum of gage is 500.02 ft above mean sea level, datum of 

1929.

Extremes.--Maximum daily gage height during year, 4.57 ft June 13; minimum daily, 1.81 ft

1937-55: Maximum daily gage height, 5.86 ft May 22, 23, 1954; minimum daily, 0.63ft 

Dec. 11, 1941.

Remarks.--Lake used for recreation and conservation for development of water power. Total 

usable capacity, 18,240,000,000 cu ft between elevation 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 betwen June 1 and uct.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. Ill),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.

Mean gage height, in feet, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

t)

*)

tt)

Oct.

4.01

4.00

4.00

4.01

3.98

3.97

3.93

3.91

3.89

3.88

3.89

3.88

3.87

3.86

3.87

3.96

3.95

3.94

3.94

3.92

3.90

3.88

3.85

3.82

3.81

3.81

3.78

3.75

3.76

3.76

3.76

17,360

-520

-194

Nov.

3.76

3.75

3.85

3.87

3.90

3.90

3.90

3.89

3.87

3.88

3.86

3.83

3.81

3.77

3.75

3.73

3.72

3.69

3.67

3773

3.81

3.83

3.87

3.91

3.94

3.95

3.96

3.99

4.08

4.09

18,000

+640

+247

Dec.

4.08

4.10

4708

4.06

4.04

4.01

3.98

3.97

3.96

3.93

3.89

3.87

3.85

3.86

3.93

3.91

3.92

3.96

4.06

4.08

4.05

4.07

4.08

4.03

3.99

3.97

3.93

3.91

3.87

3.89

3 . 86

17,520

-480

-179

Jan.

3.82

3.80

3.76

3.72

3.68

3.64

3.53

3.49

3.46

3.40

3.37

3.31

3.25

3.18

3.13

3.07

3.01

2.95

2.91

2.83

2.78

2.74

2.69

2.65

2.59

2.54

2.49

2.43

2.40

2.35

2.50

14,430

-3,090

-1,154

Calendar year 1954: (t) +2,310

Water year 1954-55: (*) -2,470

Feb.

2.26

2722"

2.17

2.11

2.07

2.04

2.07

2.04

g2.02

gl.97

gl.94

gl.94

gl.96

gl.96

gl.93

gl.90

gl.95

gl.95

gl.91

gl.87

gl.83

gl.81

gl.83

1.85

1.86

1.87

1.89

1.91

_

13,720

-710

-293

Mar.

1.98

2T5T

2.07

2.11

2.13

2.16

2.18

2.18

2.19

2.20

2.21

2.25

2.27

2.30

2.33

2.40

2.46

2.51

2.54

2.57

2.59

2.64

2.69

2.71

2.72

2.75

2.78

2.79

2.81

2.82

2 J)4

15,570

+1,850

+691

Apr.

2.87 2T9~2~

2.97

3.01

3.06

3.12

3.17

3.22

3.27

3.31

3.36

3.42

3.47

3.51

3.57

3.62

3.66

3.70

3.77

3.84

3.89

3.92

3.96

3.99

4.06

4.10

4.14

4.19

4.25

4^26

18,400

+2,830

+1,092

May

4.30

4TST

4.34

4.37

4.41

4.41

4.41

4.41

4.38

4.38

4.37

4.36

4.36

4.37

4.36

4.35

4.34

4.33

4.32

4.32

4.31

4.30

4.30

4.30

4.34

4.40

4.41

4.39

4.40

4.46

4j_4_8

18,920

+520

+194

June

.54

.54

.51

.47

.45

.44

.44

.44

.44

.40

.42

.49

~T55 .57

.54

.52

.51

.49

.48

.46

.45

.45

.46

.46

.48

.48

.47

.46

.45

.43

18,680

-240

-92.6

July

.41

.41

.42

.40

.38

.42

.42

.41

.39

.38

.34

.33

.30

.27

.26

.24

.21

.16

.16

.13

.08

.07

.03

.00

.98

.94

.94

.04

.02

.00

.96

17,740

-940

-351

Aug.

3.95

3.92

3.89

3.88

5.86

3.88

3.88

3.89

3.89

3.86

3.90

3.97

4.05

4.09

4.08

4.06

4.12

4.26

4.32

4.31

4.29

4.26

4.27

4.26

4.21

4.16

4.10

4.02

3.99

3.95

3 90

17,580

-160

-59.7

Sept.

3.85

3T8T

3.77

3.72

3.66

3.62

3.56

3.49

3.45

3.39

3.34

3.28

3.23

3.19

3.14

3.09

3.06

3.03

3.00

2.98

2.89

2.87

2.85

2.87

2.85

2.82

2.80

2.80

2.79

2.78

15,410

-2,170

-837

tt) +73.3

tt) -78.3

t Contents, in millions of cubic feet,, at end of month, 

t Change in contents, in millions of cubic feet, 

tt Change in conbents, equivalent in cubic feet per second, 

g Computed from once-daily tape-gage reading.
84 MERRIMACK RIVER BASIN

Lake Winnipesaukee Outlet at Lakeport, N. H.

Location.--Lat 43°32 I 55", long 71°27'55", 100 ft upstream from highway bridge across Paugus 

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 1955.

Gage.--Water-stage recorder, Keeler deflection meter, and measuring flume. Datum of gage 

Is 500.55 ft above mean sea level, datum of 1929. January 1860 to December 1911, 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.--22 years, 540 cfs (adjusted for storage).

Extremes.--Maximum daily discharge during year, 1,860 cfs Jan. 10; minimum daily, 175 cfs

'1933-55: 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 except those for periods of no deflection record, which are fair. 

Flow completely regulated by Winnipesaukee (see preceding page), Wentworth, Merrymeeting (see p. Ill), and other lakes. Daily discharge computed from relation between 

discharge, stage, and deflection of vane in measuring flume.

Discharge, in cubic feet per second, water year October 1954 to September 1955

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.

455

445

470

495

465

465

*465

465

470

*465

475

425

425

450

440

440

470

490

465

455

455

i BO

420

465

*545

535

515

525

525

495

520

14,655

473

-194

Nov.

550

*520

475

485

495

495

510

540

500

495

490

500

875

905

970

*920

945

1,020

1,010

1,010

1,020

615

275

*270

190

275

190

220

*630

910

18,305

610

+247

Dee.

1,060

1,060

1,060

1,050

1,060

1,110

1,060

1,050

1,060

*1,060

1,030

1,050

1,120

1,090

1,080

1,070

1,150

1,290

1,310

1,350

1,310

1,370

1,480

1,420

1,440

1,440

1,480

1,460

*1,500

1,700

1,_8KI

38,580

1,245

-179

Jan.

1,830

1,790

*1,850

1,850

1,820

1,810

1,800

*1,740

1,720

1,860

1,820

1,810

1,790

1,770

1,650

1,640

1,720

1,680

1,670

1,650

1,640

1,590

1,540

1,580

1,500

1,490

1,490

1,470

1,420

1,360

*1,440

51,790

1,671

-1,154

Feb.

* ,440

,400

,390

,380

,340

,300

,410

,390

,360

,370

,370

,320

,300

,360

,360

,330

,360

,360

,280

,220

1, 120

820

820

740

515

490 49~5

550

-

32,590

1, 164

-293

Mar.

520

6EO

745

740

650

555

*645

*625

7E5

715

630

520

540

570

420

225

225

225

210

250

290

240

240

240

245

245

270

280

*235

240

240

13,170

425

+691

Apr.

240

250

270

285

240

240

230

zm

230

285

305

260

255

260

245

260

270

£80

245

240

250

250

280

290

290

280

240

*240

275

285

7,810

260

+1,092

May

285

285

250

250

175

440

555

550

580

525

535

540

390

275

335

300

245

240

245

250

295

320

290

240

215

245

245

275

335

335

315

10,360

334

+194

June

920

1,310

1,140

870

950

595

275 2"8~5

275

275

295

400

855

1,120

1,120

1,120

805

520

560

510

360

*31Q

330

340

330

375

390

500

585

580

18,300

610

-92.6

July

500

375

375

370

360

360

360

360

360

370

385

350

340

320

320

570

a540

a 5 80

a545

a555

a540

a550

a550

a535

a580

a545

a750

a610

a295

355

370

13,975

451

-351

Aug.

285

295

295

*285

270

320

290

320

280

280

290

290

315

325

325

325

325

305

680

845

840

895

875

865

910

1,050

1,040

1,040

1,030

1,010

980

17,480

564

-59.7

Sept.

1,000

985

1,010

1,030

1,030

1,050

1, 130

1, 170

1,040

975

990

990

970

970

960

775

735

755

765

715

625

560

565

530

500

580

555

505

555

*550

24,570

819

-837

Adjusted for change In reservoir contents

Mean

Cfsm

273 

0.769 

0.88

65" 

2.36 

2.63

Calendar year 1954= 

Water year 1954-55:

1,065 

2.33 

5.38

517 

1.42 

1.64

870 

2.40 

2.50

1,116 

3.07 

3.54

1,352

3.72 

4.16

528 

1.45

i.es

Observed

Max 2,520 Mln 155 Mean 78fi 

Max 1,860 Mln 175 Mean 717

517 

1.42 

1.59

99.8

0.275 

0.32

504 

1.39

1.60

-18.2 

-0.050 

-0.06

Adjusted

Mean 860 Cfsm 2.37 In. 32.13 

Mean 638 Cfsm 1.76 In. 23.86

* Discharge measurement- made en tl Is day.

t Change iri contents, equivalent in cubic feet per second, In Lake Winnipesaukee.

a No deflectinn record; discharge estimated .n basis cf gage-height and powerplant records a 

records of gate openings.

Note.--Negative figures jf adjusted discharge and runoff indicate that evaporation and seepa 

from reservoir exceeded inflow.
MERRIMACK RIVER BASIN 85

Winnipesaukee River at Tilton, N. H.

Location.--Lat 43°26'30", long 71°35'15", on right bank at Tilton, Belknap County, U.3 mile 

upstream from Packer Brook.

Drainage area.--471 sq mi.

Records available.--January 1937 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 411.87 ft above mean sea level, unadjusted.

Average discharge.--13 years, 710 cfs.

Extremes.--Maximum discharge during year, 1,930 cfs Jan. 14 (gage height, 6.04 ft); minimum 

daily, 287 cfs July 5, 9.

1937-55: Maximum discharge, 3,810 cfs Sept. 21, 1938 (gage height, 7.90 ft), from 

rating curve extended above 2,100 cfs on basis of computation of peak flow over dam; 

maximum gage height, 7.93 ft Mar. 27, 1953; minimum daily discharge, 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. 83), Winnisquam, Merrymeeting (see p. Ill), and 

other lakes above station.

Rating table 

height,

water year 1954-55, except periods of ice effect (gage 

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

3.2 

3.5

4.0

Z87 

405 

630

5.0

6.0

1,190

1,900

:ubic feet per second, water year October 1954 to September 1955

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

zo

Zl

zz

23

Z4

25

26

27

Z8

Z9

30

31

Total

Mean

Cfsm

In.

Oct.

609

791 562~

548

544

544

535

544

544

540

540

548

571

548

730

690

580

600

665

6 SO

680

675

680

675

660

670

635

640

655

670

655

19,208

620

-

-

Nov.

650

*655

715

770

740

695

685

675

670

665

665

655

660

665

956

980

986

992

1,000

1,080

1,440

1,530

1,420

1,050

47Z

381

a375

a370

aT2~5

a990

24,012

800

-

-

'Dec .

*a ,250

,24O

,210

,190

,180

,170

,160

998

862

,040

,110

,130

,160

,190

,300

,420

,300

,220

,650

,840

,780

,720

,680

,680

,650

,600

,530

,530

,590

,750

,760

42,890

1,384

-

-

Jan.

,770

,800

* ,840

,850

,840

,840

,840

,830

b ,810

b ,830

,840

,830

,820

b ,800

,780

,740

,720

b ,700

,700

b ,650

b ,650

,650

,620

,600

,590

a ,570

a ,550

a ,530

a ,500

a ,480

*a ,450

53,020

1,710

-

-

Feb.

1,420

al,400

al,390

al,370

1,350

1,320

bl,420

1,440

1,420

1,390

1,450

bl,650

bl,560

1,460

1,420

1,380

1,400

1,400

1,380

1,340

1,320

1,230

1,070

*1,080

1,060

1,050

1,020

986

-

_____

37,176

1,328

-

-

Mar.

802

b870

b990

1,060

1,020

998

b860

760

735

735

813

974

1,030

950

890

879

b755

675

610

590

595

585

576

576

b570

b560

b550

*b555

553

512

441

23,069

744

-

-

Apr.

486

512

512

463

490

522

517

486

441

437

632

835

862

956

992

992

920

720

526

508

463

429

425

429

445

472

*481

468

468

454

17,343

578

-

-

May

421

405

365

357

361

397

494

610

635

645

635

625

625

620

522

373

357

341

333

333

317

310

298

*314

329

369

357

341

333

560

852

13,834

446

-

-

June

1,180

1,510

1,620

1,470

1,250

1,170

862

695

389

345

341

397

670

1,030

1,050

1,040

1,030

944

813

760

595

576

*580

558

357

321

306

3TT

512

530

23,218

774

-

-

July

522

530

377

295

287

291

310

295

287

291

291

306

302

295

291

29B

465

600

648

642

578

397

321

493

655

655

660

*576

353

325

310

12,946

418

-

-

Aug.

310

306

306

306

306

310

302

306

302

302

321

333

345

353

337

337

337

337

489

938

980

827

558

846

896

974

980

974

968

*968

968

17,122

552

-

-

Sept.

968 9~B2~

956

950

950

950

950

950

956

962

962

956

950

944

791

635

381

481

745

813

780

740

408

314

393

57 £

650

655

*650

424

22,802

760

-

-

Calendar year 1954: Max 3,610 Min 227 Mean 989 Cfsm - In. -

Water year 1954-55: Max 1,850 Min 287 Mean 840 Cfsm - In. -

recc

at Lakeport.

b Stage-discharge elation affected by ice.
86 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 1955.

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.--50 years (1905-55), 2,805 cfs.

Extremes.--Maximum discharge during year, 15,000 cfs Apr. 16 (gage height, 12.63 ft); minimum daily, 490 cfs July 23.

1903-55: 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 slope-area determination and computation of flow over dam at gage height 29.5 ft, and velocity-area 

study; 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 83,111 for description and month-end contents of many of these reservoirs.

Revisions (water years).--WSP 401; 1913 calendar year. WSP 641: 1923(M). WSP 756: 

Drainage area. WSP 781: 1928(M). WSP 1231: 1911-13, 1916-17(M), 1919(M), 1922(M).

Rating table, water year 1954-55, except periods of Ice effect (gage

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

(Shifting-control method used July 28, Aug. 12-14. 16, 17, 21-26,

Aug. 28 to Sept. 3, Sept. 6-9, 13)

3.5 

4.0 

4.5 

5.0

489

800

1,180

1,680

7.0

10.0

13.0

4,270 

10.OOO 

15,700

Discharge, In cubic feet per second, water year October 1954 to Septemb?r 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

Z4

25

Z6

27

28

29

30

31

Total

Mean

Cf sra

In.

Oct.

2,200

Z,370

2,070

2,030

2,270

2,630

2,020

1,930

1,930 

1,800

2,010

2,250

2,550

2,010

2,130

3,120

5,200

3,680

2,880

2,730

2,510

2, £70

2,200

2,130

2,070

2,030

1,990

2,030

2,130

2,250

2,550

73,970

2,386

1.58

1.83

Nov.

2,370

*Z,320

2,580

4,790

4,670

3,690

3,130

2,750

2,630 

2,390

2,290

2,290

2,160

2,070

2,490

2,520

2,510

2,350

2,330

2,660

7,420

11,600

8,920

5,490

3,960

3,300

3,190

2,780

3,410

5,090

110,150

3,672

2.44

2.72

Dec.

*4,740

4,190

3,780

3,310

2,930

3,010

2,800

2,490

2,470 

2,700

2,790

2,680

2,590

Z,790

3,240

4,770

4,410

4,520

8,520

8,280

6,260

4,770

4,160

3,830

3,850

3,500

3,280

3,650

3,790

4,160

4,110

122,170

3,941

2.62

3.01

Jan.

4,080

3,530

*3,850

3,780

3,680

3,640

3,540

3,500

3,250 

3,190

3,470

3,400

3,360

2,950

2,900

2,990

2,960

3,130

2,960

2,860

2,900

2,300

2,770

2,660

2,790

2,710

2,650

2,480

2,250

2,360

2,300

95,170

5,070

2.04

2.55

Feb.

2,550

2,270

2,240

2,240

2,150

2,090

2,650

2,820

2,430 

2,500

2,760

3,070

3,060

3,010

2,970

2,860

2,650

2,590

2,340

2,510

2,520

2,520

2,240

3,050

*5,200

5,250

3,130

2,750

_

_______

73,980

2,642

1.75

1.83

Mar.

2,710

3,570

5,370

2,880

2,690

2,590

2,470

2,290

2,000 

2,130

2,610

3,390

3,550

3,410

5,260

5,410

3,530

3,400

3,060

2,750

2,690

2,740

2,700

2,640

2,620

2,240

2,220

2, 130

*2, 150

2, 150

2,140

85,250

2,750

1.82

2.10

Apr.

2,740

3^750

3,990

4,810

6,260

7,300

7,540

5,820 

5,110

8, 260

10,900

9,470

7,760

10,200

14,400

13,400

9,940

8,960

11,600

10,500

7,840

6,840

7,060

6,420

6,940

6,780

*6,500

5,820

5,690

225,910

7,530

5.00

5.58

May

5,500

5,590

5,220

5,000

4,840

5,170

4,220

3,830

4,170 

3,980

3,400

2,980

2,740

2,750

2,530

2,350

2,260

2,130

1,890

1,840

1,610

1,440

1,490

*1,550

1,510

1,750

1,600

1,450

1.590

2,250

5,640

91,750

2,959

1.96

2.26

June

7,760

8,020

57755

4,210

5,370

3,220

2,750

2,450

1,960 

1,610

1,570

1,610

5,430

4,880

5,810

5,520

2,760

2,400

2,120

2,150

1,720

1,690

*1, 780

2,140

1,920

2,470

1,870

1,850

1,820

1,710

- ------

88,060

2,955

1.95

2.17

July

1,500

1,180

1,430

1,590

1,260

i.oto

1,470

1,700

910 

977

1,030

1,110

936

978

9.5

646

915

1,230

1,530

1,540

1,230

1,070

490

1,010

1,270

1,230

1,240

*1,570

*850

5.6

738

34,931

1,128

0.749

0.86

Aug.

829

876

787

792

827

649

1,040

842

945 

986

1,550

1,710

1,820

2,500

4,290

2,920

1,970

3,150

3,460

5,150

2,510

2,020

1,670

1,990

2,000

2,080

1,480

1,640

1,790

*1,700

1,750

55,501

1,790

1.19

1.57

Sept.

1,760

1,690

1,680

1,370

1,450

1,740

1,600

1,580

1,550 

1,200

1,440

1,520

1,560

1,490

1,520

1,100

671

866

1,560

1,520

1,200

1,140

874

716

902

1,100

1,150

1,550

*1,180

1,110

38,949

1,298

0.861

0.96

Calendar year 1954: Max 19,200 

Water year 1954-55: Max 14,400

Mln 

Mln

560

490

Mean 3,885 

Mean 5,002

Cfsra 

Cfsra

2.58

1.99

In. 34.98 

In. 27.04

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Jan. 15, 21, Jan. 28 to Feb. 5, Feb. 7, 14, Mar. 4, 

7-9. Discharge in cubic feet per second per square mile and runoff in inches may not represent 

natural flow because of regulation.
MERRIMACK RIVER BASIN 87

Contoocook River at Peterboro, N. H.

Location.--Lat 42°51'45", long 71°57'35", on left bank 1,100 ft downstream from tnilldatn, 

1 mile south of Peterboro, Hillsboro County, and lj miles upstream from Nubanusit 

Brook.

Drainage area. 68.1 sq mi.

Records available.--July 1945 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 740 ft (from topographic map).

Average discharge.--10 years, 122 cfs.

Extremes.--Maximum discharge during year, 1,290 cfs Nov. 3 (gage height, 4.64 ft); minimum 

daily, 3.0 cfs July 7. , . 1945-55: Maximum discharge, 2,640 cfs Nov. 26, 1950 (gage height, 6.35 ft), from 

rating curve extended above 1,700 cfs by logarithmic plotting; minimum daily, 0.8 cfs 

Sept. 15, 16, 1953.

Flood in September 1938 reached a stage of about 15 ft, from information by local 

res idents.

Remarks.--Records good except those for periods of ice effect or no gage-he iglrt record, 

which are fair. Flow regulated by mill and reservoirs above station.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

1.3

1.4 

1.7 

2.0

Oct. 1 to Dec. 14

' 2.5

5 3.0

> 4.0

258

440

900

Dec. 15 to Sept. 30

1.7 71

2.0 124

2.5 257

3.0 440

4.0 900

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

a95

a60

a41

a95

alOO

*100

95

91

63

40

97

100

117

110

120

163

IT54~

122

111

128

116

122

59

32

4?

94

95

89

95

70

84

2,850

91.9

1.35

1.56

Nov.

110

102

'551 676

281

142

116

144

128

138

144

120

76

67

SS

117

116

134

170

1.83

426

412

ill

243

199

186

176

169

291

327

6,381

213

3.13

3.48

Dec.

274

225

215

172

104

142

135

135

*122

154

96

64

ITS

158

586

419

288

356 539-

416

315

251

235

196

170

155

155

167

263

247 

213

^ 7,085

229

3.36

3.87

Jan.

160

165

193

m

142

135

125

80

95

119

114

115

111

110

60

32

99

115

*95

110

100

51

54

100

94

105

80

100

50

31 

6S

3,178

103

1.51

1.74

Feb.

90

86

82

80

50

29

ITS

105

95

80

160

180

105

120

87

101

92

*89

41

38

89

82

195

225

TBT

71

76

121

_

-----

2,839

101

1.48

1.55

Mar.

290

306

196

138

70

55

ITS

130

120

107

284

356 2"B8~

220

180

293

300

200

144

124

134

123

146

140

146

100

106

125

134

*164 

233

5,442

176

2.58

2.97

Apr.

309

339

318

245

259

296

328

255

219

222

251

241

223

229

259

219

193

192

187

228

210

196

186

175 324-

596 B35"

436

430

8,500

283

4.16

4.64

May

319

2~5T7

218

194

*173

160

128

137

151

134

110

107

104

77

47

92

114

121

77

94

32

27

47

80

88

93

86

40

26

4T

127

3,497

113

1.66

1.91

June

354

240

152

77

48

66

94

98

90

88

42

48

91

128

*99

95

102

48

33

4T

105

180

152

112

58

43

70

84

88

3,012

100

1.47

1.64

July

80

BT

19

57

17

*8.8

"OT 3.0

9.6

15

14

59

34

41

20

13

14

25

*23

31

30

23

6.8

10

26

22

16

5.1

5.1

6.8 

5.6

697.2

22.5

0.330

0.38

Aug.

13

12

11

11

13

7.7

8.8

23

13~ 4.9

12

23

99

220

124

50

32

27

314

3olT

125

81

80

81

73

55

51

24

45

51

2,048.4

66.1

0.971

1.12

Sept.

40

*82

2T

19

18

30

55

47

45

12

12

42

61

57

38

64

19

11

43

a56

a53

a38

a52

a58

a76

a65

a56

aSO

a70

a64

1,386

46.2

0.678

0.76

Calendar year 1954 : Max 792 Mln 11 Mean 158 Cfsm 2.32 In. 31.42

Water year 1954-55: Max 676 Mln 3.0 Mean 129 Cfsm 1.89 In. 25.62

Peak discharge (base, 70O cfs).--Nov. 3 (l p.m.) 1,290 cfs (4.64 ft); Dec. 15 (7:15 a.m.) 710 cfs 

(3.64 ftj.

* 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 Nubanusit Brook near Peterboro and otter Brook near Keene.

Note. Stage-discharge relation affected by Ice Dec. 8, 23, 26, Jan. 6-9, 12, 14, 15, 18, 20, 21, 

Jan. 23 to Feb. 14, Feb. 23, Mar. 1, 5, 7-9.
MERRIMACK RIVER BASIN

Location. Lat 42°53'10", long 71 0 58'25", on left bank l£ miles downstream from Edward 

MacDowell Reservoir, 1.3 miles northwest of Peterboro, Hillsboro County, and l| miles 

upstream from mouth.

Drainage area. 46.9 sq mi.

Records available. October 1920 to September 1931, July 1945 to September 1955. October 

1920 monthly discharge only, published in WSP 1301.

Gage. Water-stage recorder. Altitude of gage is 790 ft (from topographic map). Prior 

to Oct. 1, 1931, at site 550 ft downstream at different datum.

Average discharge. 21 years, 84.2 cfs.

Extremes.--Maximum discharge during year, 452 cfs Apr. 27 (gage height, 3.71 ft); minimum daily, 5.9 cfs Jan. 23.

1920-31, 1945-55: 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 efs ; minimum daily, 

0.5 cfs Aug. 1, 1926.

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

regulated by mills, Nubanusit Lake, Edward MacDowell Reservoir since Farch 1950 

(see p. Ill), and other reservoirs above station.

Revisions (water years).--WSF 5F1: 1921(M). WSP 1051: Drainage area.

Rating table, water year 1954-55, except periods of lee effect (gage 

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

0.8 

.9 

1.0 

1.2 

1.5

5.9 

9.2

2.0 

2.5 

3.0 

4.0

105

182

281

535

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

65

32

25

67

68

*67

71

57

6.8

20

64

66

68

69

69

31

67

99

89

77

74

73

33

24

67

70

71

71

7O 

43

69

1,842.8

59.4

1.27

1.46

Nov.

93

85

167

*237

268

229

193

210

200

137

167

138

102

81

87

79

75

76

76

89

147

206

247

237

198

133

189

163

187 

204

4 , 8 10

160

3.41

3.81

Dec.

198

179

152

116

99

98

84

79

*80

81

71

6739"

88

174

217

213

193

180

198

239

225

227

211

b!4E

b!40

175

174

155

15S

138

4,637

150

3.20

3.68

Jan.

124

116

131

120

108

98

91

71

69

83

ao

82

81

81

49

bS.4

59

81

*78

79

b69

22

b5.9

62

75

79

79

b75

b21

bS.O 

b61

2,242.3

72.3

1.54

1.78

Feb.

b70

b73

b53

b6.2

b!5

24

81

70

47

59

87

b!30

b97

b76

76

62

63

*58

43

b!8

70

79

104

106

88

61

39

78

-

1,833.2

65.5

1.40

1.45

Mar.

126

191

193

152

106

96

108

87

78

78

95

172

177

187

177

210

237

2TT

177

148

126

111

104

93

85

66

TT

83

79 

*86

92

4,002

129

2.75

3.17

Apr.

128

179

191

202

206

221

239

239

182

162

206

258

321

191

168

167

167

168

160

157

154

144

131

126

174

247

346

430

410

328

6,402

213

4.54

5.08

May

223

180

174

*155

140

125

105

104

115

106

96

88

82

S3

62

72

71

72

73

36

11

11

57

57

58

57

53

9.6

10

14

67

2,536.6

81.8

1.74

2.01

June

103

115

95

63

53

66

63

63

63

60

10

13

59

60

65

66

59

24

59 6.2

58

59

61

46

19

29

48

32

*28

30

1,575.2

52.5

1.12

1.25

July

6.8

7.0

7.4

7.0

7.4

8.1

8.1

8.4

8.8

9.2

10

10

*10

10

10

10

11

11

11

11

11

12

12

12

13

13

13

13

14

14

15_

324.2

10.5

0.224

0.26

Aug.

15

15

16

26

37

26

17

15

13

13

19

47

65

82

157

177

157

120

140

172

170

162

160

151

115

74

45

34

29

28

29

2,326

75.0

1.60

1.84

Sept.

31

34

*35

39

43

38

34

31

29

29

31

34

31

29

28

26

23

20

17

24

59

64

58

67

!§.

73

68

74

73

55

1,273

42.4

0.904

1.01

Calendar year 1954: Max 468 Mln 5.4 Mean 112 Cfsm 2.39 In. 32.50

Water year 1954-55: Max 430 Mln 5.9 Mean 92.6 Cfsm 1.97 In. 26.80

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

Mote.--Discharge In cubic feet per second per 

atural flow because of regulation.

off In Inches may not represent
MERRIMACK RIVER BASIN

North Branch Contoocook 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 1955.

Gage_.--Water-stage recorder. Datum uf gage is 882.38 ft above mean sea level (levels by 

Corps of Engineers). Prior to Nov. 14, 1932, staff gage, and Nov. 14, 1932, to Jan. 7, 

1941, float gage, at same site and datum.

Average discharge. 31 years, 1UU cfs.

Extremes.--Maximum discharge during year, 598 cfs Aug. 15 (gage height, 4.05 ft); minimum, 

0.3 cfs Aug. 5, 6.

1924-55: Maximum discharge, 5,000 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, Aug. 5, 6, 

1955.

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).--WSP 756: Drainage area. WSP 1231: 1925(M), 1926, 1927(M), 

1928, 1929-30(M), 1933-36, 1938-40, 1944.

Rating tables, water year 1954-55, except periods of Ice effect (gage

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

(Backwater from debris Nov. 4, 5)

Oct. 1 to No

0.8

1.0 

1.5 

2.0 

3.0 

4.0

-0.13

-.1 

0.0

123

304

580

Nov. 5 to Sept. 30

0.3 0.6 

.4 1.0 

.9 2.0

1.8 3.0

3.0 4.0

6.9

32

129

304

580

Discharge, In cubic feet per second, water year October 1954 to September 195E

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

is

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

42

39

37

35

33

*30

29

27

25

24_

24

26

27

27

25

50

88

90

79

71

64

58

53

47

43

40

37

36

37

53

65

1,361

43.9

0.801

0.92

Nov.

65

60

183

462

*497

419

333

265

203

165

137

116

103

93

83

77

73

72

79

168

269

302

284

265

243

214

187

171

175

190

5,953

198

3.61

4.04

Dec.

182

162

145

115

100

89

*79

74

72

69

67

65

63

61

150

220

210

232

349

356

308

250

225

ZOO

160

145

125

113

127

140

150

4,803

155

2.83

3.26

Jan.

145

T34

130

122

120

110

100

105

130

*120

105

92

80

70

62

55

51

49

47

44

42

39

37

34

32

31

30

29

28

25

24_

2,222

71.7

1.31

1.51

Feb.

23

22

20

19

IS

19

*60

66

59

56

57

140 ISOBS

80

68

60

60

58

55

54

56

70

130

140

117

101

97

-

1,932

69.0

1.26

1.31

Mar.

154

218

189

143

128

122

115

100

94

92

115

210

216

*177

156

187

230

1B5

155

14O

136

127

120

115

113

111

105

96

90

5T

116

4,352

140

2.55

2.95

Apr.

156 214-

251

216

230

284

322

300

265

284

356

386

383

373

*399

436

427

376

319

291

269

249

232

207

212

378

421

405

378

344

9,363

312

5.69

6.35

May

297

251

150

111

127

130

122

115

105

96

88

81

74

70

67

62

57

52

*48

43

39

35

31

24

14

13

12

11

1019"

41

2,395

77.3

1.41

1.63

June

113

129

121

1O5

88

73

62

53

46

40

32

43

90

102

90

78

67

55

43

35

31

40

58

64

71

77

*74

67

60

52

2,059

68.6

1.25

1.40

July

43

3T

37

32

27

24

22

17

14

12

9.3

6.9

5.8

4.9

4.0

3.5

3.2

2.6

2.3

2.1

2.0

1.7

1.5

1.4

1.2

1.2

1.0

.9

1.0

.9

. 8

323.2

10.4

0.190

0.22

Aug.

0.7

.5

.5

.4

JL!

.3

.8

1.0

.8

*.6

.9

2.4

31

4oe

576_

468

328

222

212

267

247

165

118

93

73

58

46

40

33

28

25

3,445.2

111

2.03

2.34

Sept.

22

T?

17

15

13

11

9.3

8.0

6.9

6.2

5.6

5.1

4.4

4.0

3.7

3.2

3.0

2.7

2.4

2.3

2. 1

274

2.7

4.4

6.4

4.7

5.6

6.9

7.7

8.5

215.2

7.17

0.131

0.15

Calendar year 1954:" Max 562 Mln 1.7 Mean 126 Cfsm 2.30 In. 31.33

Water year 1954-55: Max 576 Mln 0.3 Mean 105 Cfsm 1.92 In. 26.08
90 MERRIMACK RIVER BASIN

Beards Brook near Hlllsboro, N. H.

Location. Lat 43°06'50", long 71°55'35", on right bank 300 ft upstream from bridge on State 

Highway 9, 500 ft upstream from mouth, and l| miles west of Hillsboro, Hillsboro County.

Drainage area. 55.4 sq mi.

Records available. October 1945 to September 1955. Prior to November 1945 monthly discharge only, published in WSP 1301.

Gage. Water-stage recorder. Altitude of gage is 595 ft (from topographic map). 

Average discharge. 10 years, 97.0 cfs.

Extremes. Maximum discharge during year, 894 cfs Nov. 4 (gage height, 4.42 ft); maximum 

gage height, 6.17 ft Mar. 2 (ice jam); minimum, 1.6 cfs Aug. 5, 6.

1945-55: Maximum discharge, 2,070 cfs Nov. 26, 1950 (gage height, 6.59 ft), from 

rating curve extended above 1,200 cfs by logarithmic plotting; minimum, 1.1 cfs Oct. 3, 

1948.

Remarks. Records good except those for periods of ice effect and those below 5 cfs, which 

are fair.

Revisions (water .years) . MSP 1231: 1948.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Mar. 2 Mar. 3 to Sept. 30

1.6

1.7 

1.9 

2.2

2.5 137

3.0 308

4.0 705

5.0 1,180

2.0

2.3 

2.6 

3.0 

4.0

167

308

705

Discharge, In cubic feet per second, wate October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

28

27

25

22

23

23

26

24

22

22

24

28

27

24

23

54

82

6T

47

40

36

32

31

28

26

26

26

27

32

57

69

1,042

33.6

0.606

0.70

Nov.

57

316" 47

710

*353

271

197

146

116

96

82

77

69

64

62

57

54

56

66

166

390

401

275

207

170

149

137

132

197

267

5,427

181

3.27

3.64

Dec.

228

177

125

110

100

90

80

76

72

68

66

63

62

60

2T50"

220

200

236

500

334

224

190

165

155

145

135

125

115

125

127

121

4,694

151

2.73

3.15

Jan.

~9T 105

91

86

80

79

74

70

64

60

50

*47

45

43

41

41

40

37

35

33

30

28

27

27

27

27

27

25

24

21

20

1,495

48.2

0.870

1.00

Feb.

19

18

17

16

IS

16

*52

68

60

57

59

150 T3~0"

100

84

72

62

64

62

58

58

60

74

140

150

130

110

100

_

2,002

71.5

1.29

1.34

Mar."

150

240

TTQ- 250

120

100

90

80

74

70

125

210

240

220

*200

220

250

190

145

125

107

91

90

86

80

80

80

72

69

8T

161

4,267

138

2.49

2.86

Apr.

282

382

397

290

352

448

484

390

286

323

484

456

338

290

*330

409

319

249

232

253

224

210

197

170

253

584 454"

378

323

282

10,099

337

6.08

6.78

May

T54" 221

152

129

116

98

91

86

86

79

70

64

68

66

62

62

50

42

*36

33

34

31

29

26

^

33

33

29

26

46

67

2,175

70.2

1.27

1.46

June

193

T32

80

57

50

42

35

31

30

27

24

BT

152

111

72

50

36

29

24

24

24

49

56

48

41

54

62

*43

34

32

1,696

56.5

1.02

1.14

Jaly

29

2T

23

19

17

17

21

16

14

13

11

11

9.8

9.1

8.5

7.9

7.9

7.4

6.6

6.2

5.2

4.6

4.2

4.0

4.0

3.6

TTo" 3.3

4.2

4.0

3.3

3?2 . 8

10.4

0.188

0.22

Aug.

2.8

2.7

2.2

1.7

TT

3.3

4.3

4.2

3.3

*3.0

4.3

13

79

639 Tnr

214

118

72

87

96

69

47

36

31

26

22

24

24

18

15

17

2,058.5

66.4

1.20

1.38

Sept.

25

24

22

19

17

23

29 SB22

19

18

16

15

16

15

13

8.8

6.6

5.4

5.0

4.4

4.0

3.4

F^

13

12

9.1

9.4

11

11

428.0

14.3

0.258

0.29

Calendar year 1954: Max 1,050 Min 2.5 Mean 120 Cfsm 2.17 Ir . 29.28

Water year 1954-55: Max 710 Min 1.7 Mean 97.8 Cfsm 1.77 Ir . 23.96

Peak discharge (base. 910 cfs). No peak above base. 

* Discharge measurement made on this day.

Note. Stage-discharge relation, affected by ice Dec. 3-16, 23-29, Jan. 1, Jan. 5 to Mar. 

MarTTl-20, 23, 24, 28, 29.
MERRIMACK RIVER BASIN 

Contoocook River near Hennlker, N. H.

Location.--Lat 43°09'10", long 71°51 I 25", on right bank 1.6 miles downstream frcm Sand 

Brook and 2.2 miles southwest of Henniker, Merrimack County.

Drainage area.--368 sq mi.

Records available.--October 1939 to September 1955.

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. 16 years, 630 cfs.

Extremes --Maximum discharge during year, 3,090 cfs Nov. 5 (gage height, 9.60 ft); maximum 

gage height, 10.74 ft Feb. 7 (backwater from ice); minimum daily discharge, 60 cfs 

Aug. 9.

1939-55: 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), from rating curve extended above 7,500 cfs on basis of computations of 

flow over dams at gage heights 12.72 and 21.3 ft.

Remarks.--Records good except those for periods of ice effect, which are fair. Flow regnlated by powerplants and by Nubanusit Lake, Edward MacDowell Reservoir (see r. m) 

since March 1950, Highland Lake, Jackman Reservoir, and other reservoirs above station.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

4.4

4.5 

5.0 

5.5 

6.0

135

234

371

7.0 

8.0 

9.0 

10.0

750

1,350

2,270

3,690

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

547

Bi3

371

338

368

368

362

350

350

258

209

335

344

341

332

402

383

444

495

434

408

380

350

234 

216

335

365

377

386

450

341

11,416

368

1.00

1.15

Nov.

296

495

1,100

2,700

*2,870

2,280

1,550

1,220

1,100

1,040

885

845

760

566

590

602

622

635

647

902

1,490

2,020

1,760

1,470 

1,290

1,180

1,130

1,100

1,270

1,730

36 , 148

1,205

3.27

3.65

Dec.

1,710

1,460

1,150

970

800

760

*732

714

710

714

692

526

586

666

1,610

2,190

1,820

1,490

2,130

2,170

1,730

1,410

1,220

1,200 

1,070

890

906

928

1,020

1,210

1,150

36,334

1,172

3.18

3.67

Jan.

1,010

944

944

955

865

830

805

735

650

656

645

*610

SOO

550

520

446

470

450

425

400

370

360

330

360 

350

340

340

340

320

310

300

17,230

556

1.51

1.74

Feb.

285

270

260 260"

260

260

300

*360

530

500

600

1,000

950

650

543

481

498

421

386

325

335

371

560

1,000 

1,050

900

700

660

-

14,715

526

1.43

1.49

Mar.

1,210

1,700

1,550

1,270

966

870

790

680

650

650

800

1,530

1.790

1,480

*1,340

1,390

1,770

1,520

1,190

860

820

800

880

760 

741

755

555

606

622

70O

965

32,210

1,039

2.82

3.26

Apr.

1,410

1,820

1,810

1,62O

1,650

1,980

2,080

1,930

1,610

1,280

1,620

1,730

1,550

1,480

*1,430

1,520

1,280

1,220

1,200

1,290

1,270

1,210

1,150

1,050 

1,210

2,250

2,910

2,800

2,530

2 ,280

50 , 150

1,672

4.54

5.07

May

2,020

1,600

1,340

1,210

966

870

790

626

696

678

656

590

558

474

408

454

460

434

*405

450

332

276

318

329 

309

324

312

284

198

2 e-ft bU

18,809

607

1.65

1.90

June

982

1,140

916

582

431

368

365

371

371

344

318

341

444

570

528

474

495

371

324

275

420

484

502

495 

390

368

319

*412

459

446

14,305

477

1.30

1.45

July

435

312

212

110

104

108

107

103

93

88

79

80

79

79

78

78

77

138

274

265

262

220

122

90 

150

182

180

182

103

76

IP4,536

146

0.397

0.46

AU3.

66

71

69

66

65

66

67

62

*60

64

67

82

163

1,080

739

610

656

714

790

1,290

1,290

955

682

614 

594

521

476

301

33O

328

280

13,218

426

1.16

1.34

Sept.

290

287

203

172

140

207

304

304

300

203

188

228

262

269

262

256

168

149

198

249

249

246

200

170 

176

190

253

264

273

229

6,889

230

0.625

0.70

Calendar year 1954: Max 3,450 Min 112 Mean 862 Cfsm 2.34 In. 31.78

Water year 1954-55: Max 2,910 Min 60 Mean 701 Cfsm 1.90 In. 25.88

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 26, Jan. 8, 9, 11-15, Jan. 17 to Feb. 14, 

Feb. 20, 23-25, Mar. 2, 3, 8-11. Discharge in cubic feet per second per square mile and runoff in 

inches may not represent natural flow because of regulation.
MERRIMACK RIVER BASIN

Warner River at Davisville, N. H.

Location.--Lat 43°15'05", long 71°43'50", on left bank 60 ft downstream from highway bridge 

at Davisville, Merrimack County, 2-jj miles northwest of Contoocook, and 2.4 miles upstream from mouth.

Drainage area.--146 sq mi.

Records available .--October 1939 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 380 ft (from topograpl ic map). Prior to 

Dec. 22, 1939, chain gage at bridge 6U ft upstream at same datum.

Extremes.--Maximum discharge during year, 1,120 cfs Dec. 19 (gage height, 6.54 ft); minimum, 10 cfs Aug. 7, 8.

1939-55: Maximum discharge, 4,510 cfs Mar. 27, 1953 (gage height, 9.88 ft), from 

rating curve extended above 2,800 cfs by logarithmic plotting; minimum, 4.4 cfs Aug. 27- 

29, 1949.

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 good. Prior 

to 1948, slight diurnal fluctuation at low flow caused by mill above station.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Dec. 19 Dec. 2O to Sept. 30

4.0 

4.5 

5.0 

6.0

6.5

83

178

333

780

1,090

3.2

3.3

9.6 3.6 

4.0

Note.--Same as preceding 

table above 4.0 ft.

Discharge, In cubic feet per second, water year October 1954 to Septembe

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

132

121

113

110

108

101

101

95

92

100

106

115

110

100

92

135

183

169

147

136

123

110

103

96

92

89

88

94

95

142

155

3,553

115

0.788

0.91

Nov.

147

134

zrS

*946

8O2

626

518

436

373

314

276

250

228

214

200

188

183

180

188

280

563

859

730

612

536

487

453

428

514

715

12,652

422

2.89

3.22

Dec.

671

581

491

415

365

*310

280

270

253

250

250

235

217

200

570

791

590

527

1,010

847

676

550

510

450

390

330

310

293

307

330

345

13,614

439

3.01

3.47

Jan.

307

286

282

272

*245

245

230

220

205

200

169

160

155

130

125

124

123

115

106

100

84

88

83

84

84

83

82

75

72

64

§!

4,659

150

1.03

1.19

Feb.

59

56

53

*49

49

49

114

149

130

125

130

325

290

210

180

155

136

138

134

126

126

130

163

300

315

280

237

220

_

_ _ ___. .

4,428

158

1.08

1.13

Mar.

310

630

640

465

350

310

280

235

*215

209

275

554

635

568

509

518

640

540

444

365

341

311

296

269

253

253

243

215

206

228

337

11,644

376

2.58

2.97

Apr.

527

720

808

671

786

949

1,010

988

841

796

1,010

1,060

*937

824

786

835

786

705

644

705

666

644

599

554

545

912

943

847

775

745

23,618

787

5.39

6.02

May

644

563

496

436

390

353

318

296

286

259

237

217

200

223

209

186

166

*155

138

128

115

106

98

95

92

142

138

117

101

183

228

7,315

236

1.62

1.86

June

504

540

415

314

262

223

193

169

153

136

119

164

333

322

253

200

160

130

113

100

*101

130

183

157

134

147

155

124

112

101

6,147

205

1.40

1.57

July

95

79

72

64

59

65

66

59

52

47

42

37

34

32

28

25

25

23

21

19

18

16

15

14

14

14

14

17

18

18

18

1,120

36.1

C.247

0.29

Aug.

15

13

12

13

13

12

11

11

*13

13

15

39

66

450

907

6O4

419

293

231

203

169

136

126

115

100

86

76

69

61

57

55

4,403

142

0.973

1.12

Sept.

53

47

44

39

36

33

29

28

25

26

25

24

23

23

21

19

19

18

17

16

17

16

15

20

35

31

26

25

32

34

816

27.2

0.186

0.21

Calendar year 1954: Max 1,860 Mln 16 Mean 329 Cfsm 2.25 In. 30.61

Water year 1954-55: Max 1,060 Mln 11 Mean 257 Cfsm 1.76 In. 23.96

Peak discharge (base, 1,200 cfs). --No peak above base.

* Discharge measurement made on this day.

Note. --Stage-discharge relation affected by Ice Dec. 4, 6-8, 12, 14, 17, 22-27, 30, Jan. 5-10, 12,

14, 15, 18, 21, Feb. 9-14, 24-26, Mar. 1-9, 17, 18, 28.
MERRIMACK RIVER BASIN 

Blackwater River near Webster, N. H.

93

Location. Lat 43°17'50", long 71°41'40", on left bank 0.2 mile west of Dingit Corner, 

2f miles 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 1955. Published 

as "near Contoocook" 1918-20, 1927-35. Records published for both sites October 1934 

to September 1935.

Gage.--Water-stage recorder at present site since Oct. 1, 1934. Altitude of gag? is 430 ft 

(from topographic map). Prior to Oct. 1, 1935, chain gage at site 5 miles downstream 

at different datum.

Average discharge.--30 years (1918-20, 1927-55), 216 cfs (adjusted to present site).

Extremes.--Maximum discharge during year, 1,320 cfs Aug. 16 (gage height, 5.86 ft); minimum, 26 cfs Aug. 5; minimum daily, 27 cfs Aug. 5.

1918-20, 1927-55: 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 slope-area and 

critical-depth determinations of peak flow; 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, 

which are good. High flow regulated by Blackwater Reservoir since 1941 (see p. 111). 

Some regulation at low flow prior to 1953 by mill above station.

Revisions (water years).--WSP 696: Drainage area. WSP 821: 1936(M). WSP 851- 1936. 

WSP 867:1936 (flood-report data). WSP 1231: 1919-20, 1927, 1928(M), 1929-32, 1933- 

34(M), 1936 (calendar year summaries).

Rating table, water year 1954-55, except periods of ice effect (gage 

height, In f.eet, and discharge, in cubic feet per second)

2.2 

2.5 

3.0 

3.5

135

241

4.0 

4.5 

5.0 

6.0

381

550

790

1,420

Discharge, in cubic feet per secoma, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

126

125

118

116

118

118

118

115

110

108

109

120

126

123

112

144

196

214

187

158

139

135

128

121

115

110

109

112

116

132 

154

4,032

130

1.01

1.16

Nov.

160

148

190

*442

690

725

459

319

260

225

198

181

168

156

148

141

133

132

T35

187

402

645

784

640

445

355

316

297

343

442

9,866

329

2.55

2.84

Dec.

494

448

362

275

235

170

175

172

185

187

185

172

170

145

322

532

582

512

608

750

660

450

320

305

241

2O9

225

230

240

Z40 

H60

10,061

3Z5

2.52

2.90

Jan.

250

218

207

170

194

160

140

125

140

130

125

125

110

100

loo

98

93

90

86

78

77

77

77

78

81

85

78

74

70

65_

3,706

120

0.930

1.07

Feb.

63

58

55

*55

55

56

75

98

115

110

120

190

240

195

145

121

108

104

102

99

96

100

115

170

240

245

210

180

-

3,520

126

0.977

1.01

Mar.

215

340

 465

425

288

227

196

176

160

160

190

35O

520

560

475

435

515

540

420

300

Z75

250

230

220

205

200

196

181

176

189 

°51

9,330

301

2.33

2.69

Apr.

400

¥60

69O

685

617

715

828

893

840

762

779

971

*1,070

965

730

784

917

818

635

640

72O

665

558

508

498

594 '790

840

715

586

21,773

726

5.63

6.28

May

508

426

362

319

286

263

253

239

232

225

209

192

176

170

166

160

146

135

126

120

112

106

100

97

95

103

132

133

115

186

419

6,311

204

1.58

1.82

June

561

1,060

1,030

584

359

283

243

223

207

192

172

176

288

413

400

288

214

168

143

125

 115

121

168

172

170

172

150

125

110

1O5

8,535

284

2.20

2.46

July

89

79

73

68

63

63

67

68

66

60

55

51

48

45

44

43

42

43

43

41

40

39

36

36

34

32

32

35

37

35

33

1,540

49.7

0.385

0.44

Aug.

31

30

29

28

21

28

32

33

*34

32

33

56

1OO

79

408

966

534

253

200

198

194

162

130

123

116

100

89

80

73

67

63

4,328

140

1.09

1.25

Sept.

61

58

55

52

49

48

45

43

41

40

40

39

39

38

37

37

36

35

34

35

34

52

32

40

52

65

60

55

55

56

1,341

44.7

0.347

0.39

Calendar year 1954: Max 2,030 Min 26 Mean 282 Cfsm 2.19 In. 29.69

Water year 1954-55: Max 1.O70 Min 27 Mean 231 Cfsm 1.79 In. 24.31

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 4-7, 14, 2O-23, Dee. 27 to Jan. 1, Jan. 7 to 

Feb. 15, Feb. 23 to Mar. 4, Mar. 12-15, 19-22, 24, Apr. 1, 2.
94 MERRIMACK RIVER BASIN

Contoocook River at Penacook, N. H.

Location. Lat 43 0 17'10", long 71°36'00", on right bank at Penacook, Merrimack County, 

half a mile upstream from mouth.

Drainage area.--766 sq mi.

Records available.--October 1928 to September 1955. Prior to November 1928 monthly discharge only, published in WSP 1301.

Gage.--Water-stage recorder. Datum of gage is 273.09 ft above mean sea level, datum of 

1929.

Average discharge . 27 years, 1,266 cfs.

Extremes.--Maximum discharge during year, 5,000 cfs Apr. 27-28 (gage height, 4 69 ft)- 

minimum, 108 cfs July 19; minimum daily, 129 cfs Aug. 4,8.

1928-55: Maximum discharge, 46,800 cfs Mar. 20, 1936 (gage height, 14.26 ft, from 

floodmarks); minimum, 44 cfs Oct. 20, 1950; minimum daily, 81 cfs Aug. 19, 1950.

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

regulated by mills and by Nubanusit Lake, Edward MacDowell Reservoir since March 1950, 

Highland Lake, Jackman Reservoir, Blackwater Reservoir since 1941 (see p. Ill), and 

other reservoirs above station.

Revisions (water years1.--WSP 756: 1933(M), drainage area. WSP 1231: 1929, 1931.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.5

1.6 

1.8 

2.1

122

159

252

450

2.5 

3.0 

4.0 

5.0

840

1,540

3,400

5,820

Discharge, in cubic feet per second, water year October 1954 to Septetiber 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

974 

912

888

710

700

710

*700

680

640

650

593

593

680

670

650

768

988

960

988

912

828

768

710

650

566

539

640

660

690

828

912

23,157

747

0.975

1.12

Nov.

780 

816

1,380

*4,070

4,710

4,280

3,270

2,480

2,090

1,880

1,640

1,520

1,400

1,280

1,090

1,100

1,100

1,090

1,140

1,350

2,590

3,750

3,910

3,440

2,860

2,520

2,280

E,190

2,370

3,250

67,626

2,254

2.94

3.28

Dec.

3,470 

3,000

*2,500

2,090

1,860

1,600

1,500

1,450

1,420

1,410

1,350

1,250

1,100

1,100

2,580

3,930

3,6OO

3,130

4,140

4,520

3,820

2,960

2,390

2,410

2,150

1,850

1,750

1,780

1,860

2,090

2,050

71,910

2,320

3.03

3.49

Jan.

1.850 

1,810

1,780

1,760

*1 , 540

1,520

1,450

1,300

1,200

1,200

1,150

1,080

1,080

950

900

800

850

800

750

7OO

640

620

600

620

620

620

620

600

560

540

520

31,030

1,001

1.31

1.51

Feb.

490 

460

440

440

440

440

550

700

850

950

980

1,850

1,850

1,300

1,050

940

876

852

790

730

670

670

913

1,700

1,950

1,780

1,480

1,310

__ ___. .

27,451

980

1.28

1.33

Mar.

1,800 

3,300

3,400

2,800

2,100

1,780

*1,550

1,400

1,320

1,350

1,480

2,550

3,470

3,270

2,880

2,780

3,270

3,210

2,610

1,960

1,760

1,660

1,690

1,560

1,440

1,460

1,410

1.140

1,240

1,320

1,810

64,770

2,089

2.73

3.14

Apr.

2,740 

3,640

4,090

3,580

3,690

4,180

4,400

4,400

3,960

3,400

*5,580

4,090

4,000

3,730

3,470

3,490

3,510

3,170

2,960

3,040

3,110

3,000

2,780

2,570

2,520

3,860

4,880

4,880

4,540

4,230

109,490

3,650

4.77

5.32

May

5.750 

3,190

2,700

2,570

2,070

1,850

1,710

1,520

1,410

1,410

1,510

1,210

1,160

1,100

1,020

924

936

864

*816

756

756

630

611

630

630

680

720

670

611

640

1,090

39,724

1,281

1.67

1.93

June

2,210 

5.110

2,860

2,210

1,440

1,170

1,020

948

888

852

768

828

1,280

1,490

1,440

1,230

1,040

924

768

680

*660,

816

948

974

924

828

828

744

768

768

35,414

1,180

1.54

1.72

July

732 

660

548

466

370

331

305

318

318

252

247

270

237

222

212

198

180

172

217

364

364

364

299

217

185

222

270

276

287

247

155

?,505

307

0.401

0.46

Aug.

137 

157

140

129

T40

148

157

*129

155

140

148

207

293

1,O6O

2,250

2,190

1,950

1,490

1,300

1,540

1,850

1,520

1,140

974

900

840

732

670

482

557

506

23,969

773

1.01

1.16

Sept.

466 

458

445

357

324

305

357

428

435

406

331

331

351

377

384

377

344

276

276

311

344

357

544

318

324

357

344

406

421

428

10,980

366

0.478

0.53

Calendar year 1954: Max 6.74O Win 242 Mean 1,739 Cfsm 2.27 Ir . 3O.80

Water year 1954-55: Max 4.88O Min 129 Mean 1,411 Cfsm 1.84 Ir . 24.99

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Dec. 6-9, 11-14, 25, 25-27, 31, Jan. 1, Jan. 7 

Feb. 16, Feb. 19, 20, 24-26, Bar. 1-5, 7-9.
MERRIMACK RIVER BASIN 95

Soucook River near Concord, N. H.

Location. Lat 43°14'22", long 71°27'44", on left bank 500 ft upstream from U. S. Highway 4, 0.9 mile upstream from Cemetery Brook, and 4.4 miles northeast of State 

Capitol at Concord, Merrimack County.

Drainage area. 76.8 sq mi.

Records available. October 1951 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 290 ft (from topographic map).

Extremes. Maximum discharge during year, 641 cfs Dec. 19 (gage height, 8.42 ft); minimum, 3.3 cfs Sept. 22-24.

1951-55: Maximum discharge, 2,380 cfs Apr. 6, 1952 (gage height, 12.35 ft); minimum, that of Sept. 22-24, 1955.

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

which are fair.

Revisions (water years) .--WSP 1331: 1952(M).

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

4.08

4.2

4.6

5.0

5.5

3.3

6.5

6.0 

7.0 

8.0 

8.5

158

317

535

665

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

Z

3

4

5

6

7

8

9

10

11

:z

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.

59

56

52

50

*48

47

48

47

44

44

51

59

56

50

46

111

140

100

83

74

66

60

55

51

47

46

51

55

53

96

101

1,946

62.8

0.818

0.94

Nov.

89

77

196

429

275

202

161

135

*121

108

97

93

88

83

81

75

74

74

77

138

384

426

294

227

195

178

164

157

254

394

5,346

178

2.32

2.59

Dec .

289

225

185

155

135

119

108

101

*110

120

123

115

101

94

300

304

213

218

580

406

281

222

213

206

173

137

149

146

161

178

172

6,039

195

2.54

2.92

Jan.

150

161

214

189

165

146

125

110

99

100

*88

78

78

67

65

65

63

57

54

48

41

44

43

45

a45

a43

a41

a38

a36

a32

a3JL

2,561

82.6

1.08

1.24

Feb.

a29

a28

a26

a25

a25

a26

*a60

80

57

52

80

270

150

115

100

85

76

81

81

79

78

76

100

190

205

190

168

164

-

_--__-

2,696

96.3

1.25

1.31

Mar.

245

520

431

304

227

192

159

138

*126

127

180

370

390

315

255

315

405

310

225

190

180

157

172

165

172

180

160

148

135

169

255

7,317

236

3.07

3.54

Apr.

341

409

4O9

321

364

409

373

354

289

272

315

303

*258

240

256

263

229

204

204

299

246

219

204

208

229

277

319

282

256

240

8,592

286

3.72

4.16

May

201

172

152

137

127

119

119

114

113

101

93

86

81

83

81

74

67

*62

58

53

49

46

42

40

39

69

73

58

48

78

88

2,723

87.8

1.14

1.32

June

398

282

188

132

114

98

86

77

69

64

56

83

204

157

110

82

65

53

46

*40

36

36

3£

36

34

43

39

32

28

24

2,750

91.7

1.19

1.33

July

21

20

22

2T

19

19

21

22

18

16

14

13

12

12

11

11

11

11

10

9.4

8.7

8.3

7.2

8.7

9.0

6.9

6.5

14

14

11

8.7

416.4

13.4

0.174

0.20

Aug.

7.2

*6.9

5.9

5.3

5.9

7.6

8.7

9.4

7.6

6.2

6.9

13

21

32

29

20

15

13

16

16

12

10

10

11

9.7

8.3

7.6

7.9

7.2

6.2

6.2

348.7

11.2

0.146

0.17

Sept.

6.2

5.9

5.3

5.0

4.8

4.3

4.0

3.8

3.8

3.8

4.0

5.3

4.8

4.3

4.0

4.0

4.0

3.8

3.5

3.5

3.5

3.3

3.3

5.7

11

8.3

6.5

7.2

9.0

8.3

154.2

5.14

0.067

0.07

Calendar year 1954: Max 1,890 Mln 7.2 Mean 161 Cfsm 2.10 In. 28.53

Water year 1954-55: Max 580 Mln 3.3 Mean 112 Cfsm 1.46 In. 19.79

Peak discharge tbase. 700 cfsK No peak above base.

* 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, and records for Suncook River at North Chlchester and Warner River at 

Davlsvllle.
96 MERRIMACK RIVER BASIN 

Suncook River at North Chichester, N. H.

Location. Lat 43 0 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 1955.

Gage. Water-stage recorder. Concrete control since Sept. 14, 1937. Datum of gage is 

329.35 ft above mean sea level, adjustment of 1912.

Average discharge. 34 years (1918-20, 1921-27, 1929-55), 243 cfs.

Extremes. Maximum discharge during year, 1,590 cfs Nov. 4 (gage height, 8.05 ft); minimum, 7.1 cfs Sept. 22, 23, 27; minimum daily, 7.4 cfs Sept. 22, 23, 27.

1918-55: 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, which are fair. Plow 

regulated by mills and reservoirs above station; regulation greater prior to 1949.

Revisions (water years1.--WSP 781: 1923(M). WSP 1231: 1919(M), 1920, 1922, 1924(M), 

1933-34(M), 1941-42(M), 1946-48(M).

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

2.4

2.5

2.6 

2.8 

3.1 

3.4 

3.7

5.0

8.2

13

26

60

114

197

4.0 

4.5 

5.0 

6.0 

7.0 

8.0

310

540

700

950

1,210

1,570

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

112

112

106

97

*97

95

104

106

121

175

240

262

255

228

211

468

477

332

243

200

182

166

155

152

149

138

138

138

155

211

236

5,861

189

1.20

1.39

Nov.

218

188

746

1,430

900

644

518

425

*368

332

290

270

247

232

232

294

294

29O

294

440

862

910

732

594

513

472

454

459

693

945

15,286

510

3.25

3.62

Dec.

790

633

518

430

386

350

330

325

325

337

350

337

324

295

946

1,110

762

696

1.320

1,020

788

680

640

604

520

430

460

445

486

548

526

17,711

571

3.64

4. 2O

Jan.

465

477

572

531

500

460

430

400

380

370

*355

330

280

250

235

225

215

180

160

125

105

110

96

96

100

96

94

84

80

72

68

7,941

256

1.63

1.88

Feb.

64

59

55

55

55

59

140

170

135

115

260

6OO

350

250

200

180

170

180

175

165

160

155

240

450

430

400

340

340

-

5,952

213

1.36

1.41

Mar.

600

1,050

790

600

500

410

360

330

*315

315

460

8Z8

758

633

536

642

642

405

260

215

205

232- 194

262

286

306

310

260

300

464

627

14,095

455

2.9O

3.34

Apr.

745

810

805

685

690

740

730

705

624

580

612

624

*576

522

560

594

548

468

480

615

495

391

350

342

373

531

695

654

615

601

17,760

592

3.77

4.21

May

522

420

364

391

435

440

396

290

243

200

172

155

144

191

182

160

141

*126

116

110

104

99

99

95

101

175

160

128

114

160

158

6,591

213

1.36

1.56

June

290

259

208

166

163

155

136

124

116

106

99

149

282

278

225

172

141

126

110

*104

95

89

89

86

101

126

95

82

77

70

4,319

144

0.917

1.02

Jviy

68

75

82

72

66

68

79

93

75

63

59

54

52

51

51

60

63

55

51

42

25

21

20

17

18

20

21

29

22 

18

12.

1,502

48.5

0.309

0.36

Aug.

12

14

14

14

*17

19

17

39

34

33

57

77

79

86

75

50

37

30

39

48

44

36

36

51

34

24

21

15

17

20

19

1,108

35.7

0.227

0.26

Sept.

18

18

16

11

9.4

9.4

15

18

*17

16

10

9.9

10

12

9.9

9.0

9.0

8.6

7.8

7.8

7.8

7.4

7.4

14

10

7.8

7.4

10

9.4 

9.0

332.0

11.1

0.071

0.08

Calendar year 1954: Max 3,930 Mln 24 Mean 396 Cfsm 2.52 In. 34.22

Water year 1954-55: Max 1,430 Min 7.4 Mean 270 Cfsm 1.72 In. 23.33

Peak discharge (base. 1.500 cfs).--Nov. 4 (6 a.m.) 1,590 cfs (8.05 ft). 

* Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by Ice Dec. 4, 6-9, 14, 22, 23, 25-27, Jan. 1, Jan 

Feb. 4, Feb. 7 to Mar. 11, Mar. 18-21, 27-29.
MERRIMACK RIVER BASIN 97

South Branch Piscataquog River near Goffstown, 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 1955.

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

Average discharge. 15 years, 166 cfs.

Extremes. Maximum discharge during year, about 1,800 cfs Dec. 15; maximum gage height, 

9.82 ft Feb. 12 (ice jam); minimum discharge, 4.3 cfs Aug. 10, 11.

1940-55: Maximum discharge, 4,100 cfs 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 good except those for periods of ice effect or no gage-height record, 

which are fair. Some regulation at low flow by mill above station.

Rating tables, water year 1954-55, except periods 

height, In feet, and discharge, In cubic feet

Oct. 1 to Feb. 11

second) 

Feb. 12 to Sept. 3O

3.5 

3.7 

4.0 

4.5

119

247

5.0 425

6.0 95O

7.0 1,640

2.82 4.3

2.9 6.8

3.0 11

3.2 22

3.4 38

3.7 72

4.0 120

4.5 247

5.0 425

6.0 950

Discharge, In cubic feet per second, water year October 1954 to September

Day

1

2

3

4

5

6

7

8

9

10

LI

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

£8

29

30 

31

Total

Mean

Cfsm

In.

Oct.

100

102

125

111

102

*95

93

86

83

83

108

117

104

92

83

362

310

186

149

132

119

108

98

93

86

83

85

88

102

186

197

3,868

125

1.20

1.38

Nov.

163

140

846

1.280

640

425

327

*266

247

217

195

184

171

158

156

149

147

152

173

403

880

600

425

350

310

285

270

260

600

800

11,219

374

3.60

4.01

Dec.

500

380

310

250

220

205

195

*185

195

220

220

185

145

180

1,200

1,150

550

455

1,150

770

500

400

370

350

300

225

250

270

360

450

380

12,520

404

3.88

4.48

Jan.

300

310

360

330

270

250

240

220

180

*165

150

135

145

115

110

110

115

120

110

90

72

85

79

83

90

84

73

65

60

57

53

4,626

149

1.43

1.65

Feb.

50

46

45

45

47

58

130

*150

120

110

130

500

300

170

135

110

100

125

150

135

115

135

250

580

335

260

215

195

-

4,741

169

1.62

1.70

Mar.

370

800

455

275

230

190

165

150

140

140

260

620

510

*385

310

450

530

310

230

190

180

171

235

225

215

238

255

200

180

250

433

9,292

300

2.88

3.32

Apr.

615

685

605

421

492

530

510

413

316

316

370

344

289

269

293

316

276

241

*247

310

269

253

247

229

407

782

655

461

506

457

12,124

404

3.88

4.34

May

344

282

244

217

300

184

173

163

166

147

132

120

115

113

107

99

89

83

85

*72

66

63

59

56

92

181

115

86

73

97

130

4,153

134

1.29

1.49

June

410

258

158

116

104

92

80

78

72

66

58

119

197

134

100

78

63

54

46

44

52

71

66

*62

72

66

59

51

46

59

2,911

97.0

0.933

1.04

July

37

35

34

31

29

30

31

35

34

30

26

22

20

19

17

16

16

14

14

13

11

11

8.2

8.6

9.0

8.6

8.6

8.6

9.0

10

5.5

601.1

19.4

0.187

0.21

A-ig.

7.1

6.8

6.4

6.1

5.8

5.8

5.8

5.5

4.9

*4.5

5.2

6.4

28

197

104

59

51

38

146

264

131

78

55

50

41

33

34

34

32

29

26

1,500.1

48.4

0.465

0.54

Sept.

25

22

20

19

18

16

15

13

12

11

11

8.2

5.2

6.1

6.8

7.1

7.5

7.9

7.9

8.2

8.2

7.9

7.9

15

54

34

25

2528 '

25

476.9

15.9

0.153

0.17

Calendar year 1954: Max 2,030 Mln 14 Mean 255 Cfsm 2.45 In. 33.28

Water year 1954-55: Max 1,280 Mln 4.3 Mean 186 Cfsm 1.79 In. 24.33

Peak discharge (base. 1.000 cfs).--Hoy. 4 (12 to 1 a.m.) 1,690 cfs (7.06 ft); Dec. 15 (tlir 

known) about 1,800 cfs; Dec. 19 (time unknown) about 1,300 cfs.

* Discharge measurement made on this day.

Note. No gage-height record Nov. 21 to Jan. 10; discharge estimated on basis of 2 discharge meas 

urements, weather records, recorded range In stage, and records for Souhegan River at Merrimaek. 

Stage-discharge relation affected by Ice Jan. 11-29, Feb. 2 to Mar. 12, Mar. 14, 15, 17-21, 24, 25, 

27-29, and during much of period of no gage-height record In December and January.
MERRIMACK RIVER BASIN

Plscataquog River near Goffstown, N. H.

Location.--Lab 43°01iOO", 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.--202 sq mi.

Records available. October 1939 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 185 ft (from topographic map). Prior 

to Dec. 22, 1939, staff gage at same site and datum.

Average discharge .--16 years,- 311 cfs.

Extremes . Max 1m urn discharge during year, 2,350 cfs Dec. 15 (gage height, 7.42 ft); minimum daily, 4.8 cfs July 26.

1939-55: 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 July 26, 1955.

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 ice 

effect, which are good. Flow regulated by powerplant above station.

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Nov. 3

8.7 

26 

56 

149 

296

Note. Same as 

following table 

above 4.5 ft.

3.5

4.0 

4.5

2.9 

3.1 

3.3 

3.6 

4.0

Nov. 4 to Sept. 30

4.1 4.5

6.8 5.0

11 5.5

21 6.0

38 7.0

76 8.0

153

296

496

745

1,090

1,940

2,940

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

178

9.8

87

235

211

190

250

99

65

*41

207

155

155

156

305

619

384

402

157

117

209

184

136

120

216

225

215

215

230 

280

187

6,239.8

201

0.995

1.15

Nov.

247

230

867

1,980

1,230

812

730

452

468

429

376

386

338

343

346

358

296

287

212

468

1,350

1,250

857

704

665

614

566

484

794

1,200

19,339

645

3.19

3.56

Dec .

864

740

673

276

323

397

311

*250

272

314

 464

252

319

386

1,630

1,600

891

850

1.720

1,180

844

656

622

544

589

365

565

520

701

701

696

20,515

662

3.28

3.78

Jan.

464

489

521

527

468

419

320

295

165

395

315

215

172

195

56

108

230

185

115

225

50

65

76

134

103

121

151

92

58

40

88

6,857

221

1.09

1.26

Feb.

85

90

92

65

33

52

419

255

*177

207

325

992

699

313

258

218

210

147

180

107

2O4

218

450

626

512

461

332

418

-

8,145

291

1.44

1.50

Mar.

587

1.470

898

701

488

415

380

340

321

421

497

670

706

751

687

670

926

712

690

437

512

622

454

430

425

438

452

420

461

253 473"

17,707

571

2.83

3.26

Apr.

690

1,060

1,120

812

884

970

940

790

675

648

701

701

696

681

434

427

690

366

467

479

528

375

376

341

566

1,080

1.170

891

870

87O

21,298

710

3.51

3.92

May

706

680

512

339

370

449

250

166

435

349

311

181

156

205

84

2 SO

196

193

154

*135

11

37

196

137

180

278

204

126

116

213 

319

7,968

257

1.27

1.47

June

669

716

479

255

11

225

200

174

133

112

13

296

410

226

212

218

108

13

11

112

97

121

173

161

70

58

171

162

186 

41

5,833

194

0.960

1.07

July

35

33

36

38

41

44

42

?2

63

38

E3

35

35

35

35

5.4

5.1

55

36

36

31

13

5.4

5.1

5.1

4.8

5.4

15

19

14

6.0

816.3

26.3

0.130

0.15

Aug.

21

5.6

16

21

*5.4

5.1

7.3

22

21

6.6

56

183

90

48

227

109

50

76

442

133

146

101

120

85

86

8.6

46

6.8

67 

37

36

2,284.4

73.7

0.365

0.42

Sept.

36

38

8.6

7.6

9.4

34

31

9.0

9.4

9.8

7.6

8.6

9.0

9.0

9.4

9.4

9.0

7.9

8.6

9.0

38

36

8.6

53

6.8

43

48

39

32 

7.6

592.3

19.7

O.O98

0.11

Calendar year 1954: Max 3,510 Min 7.O Mean 461 Cfsm 2.28 In. 31.01

Water year 1954-55: Max 1,980 Min 4.8 Mean 322 Cfsm 1.59 In. 21.65

Discharge measurement made on this day. 

Note..--Stage-discharge relation affected by ice Dec. 26, Jan. 7-12, 14, 15, 17-22, Jan. 28 to 

Feb. 6, Feb. 8, 17, 19, Mar. 7, 8, 28.
MERRIMACK RIVER BASIN 9S 

Merrimack River near Goffs Palls, 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. October 1936 to September 1955. Prior to November 1936 monthly discharge only, published in WSP 1301.

Gage. Water-stage recorder. Altitude of gage is 105 ft (from topographic map). 

Average discharge. 19 years, 5,402 cfs.

Extremes. Maximum discharge during year, 20,200 cfs Apr. 17 (gage height, 8.6? ft); minimum daily, 397 cfs July 17.

1936-55: Maximum discharge, 102,500 cfs Sept. 23, 1938 (gage height, 25.87 ft), 

from rating curve extended above 48,000 cfs on basis of computations of flow over dam 

at gage heights 25.87 and 35.19 ft; minimum daily, 154 cfs Sept. 5, 1949.

Maximum discharge known, 150,000 cfs Mar. 20, 1936 (gage height, 35.19 f";, from 

floodmarks), from rating curve extended above 48,000 cfs by method explainer! above.

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

regulated by powerplants, by Franklin Falls Reservoir since 1942, and by Sqiam, Newfound, Winnipesaukee, Winnisquam, and other lakes and reservoirs above station. See 

pages 83, 111 for description and month-end contents of many of these reservoirs.

Revisions (water years).--WSP 1231: 1937. WSP 1271: 1937(M,m).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.8 

2.0 

2.5 

3.0 

3.5

367

454

725

1,110

1,630

4.0 

5.0 

6.0 

9.0

2,360

4,780

8,200

22,000

Discharge, In cubic feet per second, water year October 1954 to September 19155

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

4,420

3,640

3,790

3,650

3,480

*3,820

3,840

3,380

2,320

2.570

3,570

3,350

3,540

3,740

3,850

4,240

6,270

7.020

5,440

4,920

4,510

4,220

3,790

3,170

3,810

3,270

3,190

3,280

3,600

3,960

3,510

121,760

3,928

1.27

1.46

Nov.

4,680

4,050

5,470

11,500

13.7OO

11,600

9,710

*7,480

6,520

6,110

5,460

5,190

4,710

4,650

4,610

4,310

4,560

4,940

4,090

5,430

10,100

16,800

17,900

13,600

10,400

8,400

7,630

6,830

7,900

11,200

239,510

7,984

2.58

2.88

Dec.

11,900

10,800

9,250

7,740

6,830

5,850

4.890

5,330

5,160

5,150

5,750

5,170

5,220

5,020

8,640

12,400

12,100

10,500

15,500

18,000

15,100

11,600

9,800

8,880

8,680

7,440

7,190

7,370

7,710

8,680

8,640

272,290

8,784

2.84

3.28

Jan.

8,£40

7,820

7,820

7,900

7,120

7,080

6,820

6,200

6,100

*6,300

5,700

5,500

5,500

4,700

4,100

4,600

4,650

4,500

4,400

4,300

3,800

3,870

3,380

3,750

3,800

3,760

3,600

3,400

3,250

3,100

5.050

158,110

5,100

1.65

1.90

Feb.

3,000

2,950

2,900

2.700

2,750

2,790

4,180

4,490

4,330

3,930

4,160

8.560

8,000

6,320

5,370

5,000

4,790

4,530

4,080

3,770

3,960

3,950

4,930

5,820

7,010

7,080

6,590

6,180

-

_._-_._

133,720

4,776

1.54

1.61

Mar.

6,800

11.200

11,200

9,080

7,020

6,580

5,590

5,330

5,000

4,860

5,620

8,440

10,300

*10,200

9,040

8,960

10,300

9,590

8,520

7,010

6,150

5,980

6,010

5,980

5,780

5,880

5,910

5,150

4,990

4.650

5,720

222,820

7,188

2.32

2.68

Apr.

7.820

10,100

11,600

11,000

11,200

13,100

14,300

15,000

13,700

11,600

12,000

15,900

16,900

14,800

13 , 500

17,600

19.900

*17,400

13,900

15,300

16,700

14,600

12,000

11,600

11,400

12,800

14,900

15,100

14,OOO

13,400

--------

413,120

13,770

4.45

4.97

May

12 , 500

11,500

10,200

9,380

8,880

8,560

8,480

7,040

6,180

6,860

6,450

5,490

5,160

4,770

4,390

4,590

4,330

3,830

3,370

3,450

2,910

2.050

2,860

2,480

2,860

2,760

3,060

2,370

2,560

3,080

4,290

166,490

5,371

1.74

2.00

June

9,180

15 , 100

11,600

9,130

6,720

5,560

5,250

4,420

3,600

3,220

2.560

3,860

4,240

6,500

6,880

5,830

5,150

3,790

3,470

3,540

3,250

2,740

3,080

3,320

3,490

3,310

*3,500

3,140

2,880

2,720

148,830

4,961

1.60

1.79

July

2.450

2,450

1,500

2,430

2,010

1,850

1,800

2,220

1,990

726

1,430

1,430

1,290

1,380

1,240

1,000

397

1,700

1,890

1,720

1,550

1,610

1,240

553

1,440

1,790

1,520

1,610

1,840

550

798

47,404

1,529

0.495

0.57

Aug.

1,190

1,130

1,150

964

955

723

83T

1,620

1,140

1,050

1,430

2,730

2,390

2,850

4,810

6.180

4,920

4,040

5,970

4,600

4,930

4,250

3,980

3,240

2,690

2,950

2,980

2,560

2,300

2,380

2,270

85,203

2,748

0.889

1.02

Sept.

2,570

2,270

2,290

1,920

1,470

2,150

2,100

2,090

1,910

2,040

1,160

1,810

2,060

1,830

1,850

1,650

1,240

644

1,640

1,560

1,610

1,560

1,490

754

945

1,600

1,530

1,580

1,820

1,990

50,893

1,696

0.549

0.61

Calendar year 1954: Max 38,100 Mln 630 Mean 7,352 Cfsm 2.38 In. 32.28

Water year 1954-55 : Max 19,900 Mln 397 Mean 5,644 Cfsm 1.83 In. 24.77

Peak discharge (base, 22.000 cfsj. Ho peak above base.

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Jan. 8-21, 24, 27-30, Feb. 1-4, 13. Discharge in 

cubic feet per second per square mile and runoff In Inches may not represent natural flow because of 

regulation.
100 MERRIMACK RIVER BASIN

Clark Brook at Auburn, N. H.

Location. Lat 43"00'20" , long 71°20'55", on left bank at Auburn, Rockingham County, 

0.4 mile upstream from Massabesic Lake.

Drainage area.--27.8 sq mi. » 

Records available.--January 1938 to September 1955.

Gage.-Water-stage recorder and concrete control. Datum of gage is 252.60 ft above mean 

sea level (city of Manchester benchmark).

Average discharge. 17 years, 40.7 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 189 cfs Dec. 19 (gage height, 1.68 ft); no flow

f°ril^55i Xi^um ^sllS?^!^Mgage height 2 55 ft); no flow

for all or part of each day Oct. 5-8, 1939, Dec. 4, 1941, Aug. 12, 1955, caused by

unusual regulation. 

Remarks.-Records good. Flow regulated by Tower Hill Pond (see p. 111). Some diurnal

fluctuation prior to 1951 by mill above station. 

Revisions (water years).--WSP 891: 1939. WSP921: Drainage area. WSP1301: 1939(M).

Rating table, water year 1954-55 (gage height, in feet, and 

discharge, in cubic feet per second)

0.3 

1.0 

2.4 

4.9 

8.7

0.7 

.9 

1.2 

1.5 

2.0

40

79

139

305

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

38

35

33

*31

28

26

25

25

23

22

21

W

31

31

30

43

54

51

45

40

37

60

68

68

68

68

66

67

72

78

1,355

43.7

-20.9

Nov.

78

72

104

160

T4T

123

102

88

82

78

73

*72

67

64

63

60

58 53-

58

72

110

123

110

96

89

86

82

79

89

91

2,631

87.7

+0.62

Dec.

78

61

50

41

35

31

28

27

*26

2T

32

30

33

54

130

177

TIT

134

177

162

142

125

116

108

98

89

86

84

88

96

102

2,615

84.4

+14.4

Jan.

98

96

1O4

TOT

94

89

84

79

74

72

*67

64

63

60

58

56

55

54

52

50

49

48

46

45

45

45

44

43

41

40

!§.

1,955

63.1

-25.2

Feb.

37

a36

a35

a34

32

31

4?

50

*45

39

42

76

73

55

45

39

39

40

40

42

44

48

64

-9T 102

74

66

68

_

1,432

51.1

-3.92

Mar.

86

TUB" 121

86

73

67

63

61

59

56

66

100

102

91

*70

67

74

68

56

49

44

4343-

45

49

54

60

59

59

55

61

2,093

67.5

+22.9

Apr.

66

72

70

66

63

61

59

58

56

58

61

63

61

59

60

59

60

*58

58

63

52

49

65

63

72

96

114

IT?

108

108

2^065

68.8

+13.9

Hay

96

5?

70

60

52

49

46

45

52

51

45

40

36

35

35

34

35

32

29

*26

24

22

21

 5T 20

38

44

40

33

33

32

1,279

41.3

-1.35

June

41

49

IT

39

36

33

30

27

25

23

21

27

41

43

37

30

25

22

19

17

16

19

19

*18

17

17

16

14

12

T?

789

26.3

-1.39

July

11

T.3

7.1

5.5

4.3

4.0

3.5

3.2

3.0

2.6

2.2

3.4

3.5

2.4

1.8

1.7

1.5

1.5

1.4

1.2

1.0

1.0

.9

.9

.il

.8

.8

.9

.9

.8

.8

82.7

2.67

-1.65

Aug.

0.7

.7

1.0

.8

.7

.5

3.4

*a6.9

al.8

al.2

a29

a!2

2.2

2.8

6.2

18

14

20

27

55

35

30

30

32

26

22

22

20

15

10

7.5

433.4

14.0

-9.13

Sept.

8.4

27

40

32

31

32

11

3.7

1.6

.9

.7

.7

.7

.6

5TT

9.2

10

10

13

59

68

BT

46

45

42

35

30

26

22

19

681.2

22.7

-20.8

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

22.8 

0.820 

0.95

88.3

3.18 

3.5E

Calendar year 1954: 

Water year 1954-55:

98.7

3.55 

4.10

37.9

1.36 

1.57

47.2 

1.70 

1.77

90.4 

3.25 

3.75

82.8 

2.98 

3.32

39.9

1.44 

1.65

Observed

Max 553 Win 0.8 Mean 64.6 

Max 177 Win 0.5 Mean 47.7

24.9 

0.896 

1.00

1.02 

0.037 

0.04

4.85 

0.174 

0.20

1.87 

0.067 

0.08

Adjusted

Mean 67.4 Cfsm 2.42 In. 32.90 

Mean 45.0 Cfsm 1.62 In. 21.98

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Tower Hill Pond.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records,

 corded range in stage when available, and records of gate openings at Tower Hill Pond.
MERRIMACK RIVER BASIN 101

Souhegan River at Merrimack, N. H.

Location. Lat 42°51'25", long 71°30'30", on left bank at head of Atherton Falls, at 

Merrimack, Hillsboro County, ij miles upstream from mouth.

Drainage area. 171 sq mi.

Records available. July 1909 to September 1955.

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.

Average discharge. 46 years, 285 cfs.

Extremes. Maximum discharge during year, 2,710 cfs Dec. 15 (gage height, 7.06 ft); minimum, 18 cfs Aug. 9, 10.

1909-55: Maximum discharge, 16,900 cfs Mar. 19, 1936 (gage height, 16.2 ft), from 

rating curve extended above 7,300 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 no gage-height record, which are fair. Some diurnal fluctuation caused by mill above station.

Revisions (water years). WSP 431: 1909-13 calendar years, 1914. WSP 726: D-ainage area. 

WSP 781: 1924(M). WSP 1231: 1914-15(M), 1917(M), 1919-23(M), 1927-28(M) , 1929,

1930-34(M).

Rating tables, water year 1954-55, except periods of Ice effect ( 

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

Oct. 1 to Dec. 15 Dec. 16 to Sept. 30

2.8 

3.0 

3.5 

4.0

120

167

325

535

5.0 

6.0 

7.0

1,080

1,810

2,650 2.2

2.4

22

30

57

2.6 

3.0 

3.5 

4.0

90

176

330

535

Discharge, In

Note. Same as preceding table above 4.0 ft.

ublc feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

170

174

153

162

*180

*162

155

153

145

155

136

136

150

141

154

486

544

325

265

217

198

182

187

172

138

155

148

148

155

258

290

6,174

199

1.16

1.34

Nov.

236

262

748

*2,230

1,100

691

508

454

429

389

545

298

309

242

226

220

220

226

286

534

1,360

1,420

840

630

562

512

535

476

786

1,290

18,364

612

3.58

3.99

Dec.

840

645

535

441

361

350

335

329

302

353

365

302

245

'51T4

1,840

1.860

894

755

1,840

1,270

828

640

630

571

460

370

420

445

566

691

650

20,427

659

3.85

4.44

Jan.

508

476

590

540

441

421

385

360

300

258

240

220

220

175

181

176

186

195

166

145

120

135

120

125

150

130

120

105

100

95

86_

7,469

241

1.41

1.62

Feb.

80

78

7273-

75

85

200

300

200

180

200

800

430

200

220

186

168

181

224

213

197

213

386

950 510-

400

315

360

_

------

7,496

268

1.57

1.63

Mar.

60C

1,15(

68C

44C

371

31;

28C

26!

251

2STT

450

1,000

920

640

540

700

920

560

400

350

320

300

420

385

360

400

450

360

3313

*390 

650

15,442

493

2.91

3.33

Apr.

867

978

918

665

691

724

740

625

499

445

481

499

437

413

429

441

337

373

362

437

405

385

377

302

4HF

1,230

1,140

850

884

936

18,325

611

3.57

3.99

May

655

BIS

*476

421

385

358

330

252

255

268

261

246

230

233

186

169

194

186

179

169

145

117

107

122

132

176

216

194

134

128 

157

7,629

246

1.44

1.66

June

313

344 255-

205

148

134

145

124

122

117

132

124

216

252

186

157

139

130

100

13

88

162

192

150

152

132

100

111

115

*100

4,718

157

0.918

1.03

July

87

7F

76

56

50

60

45

48

57

50

42

40

*41

48

40

42

38

35

32

32

32

33

34

35

32

30

28

26

25

25 

25

1,320

42.6

0.249

0.29

Aug.

22

22

20

19

19

19

19

19

18

15

19

25

44

344

270

169

120

107

325

964

421

258

189

169

141

126

122

83

73

98 

101

4,363

141

0.825

0.95

Sept.

 3T 96

87

63

51

*44

44

40

36

55

33

52

30

30

30

29

29

29

27

2T

37

40

33

40

53

62

56

53

50

75

1,383

46.1

0.270

0.30

Calendar year 1954: Max 3,710 Mln 39 Mean 408 Cfsm 2.39 In. 32.38

Water year 1954-55: Max 2,230 Mln 18 Mean 310 Cfsm 1.81 In. 24.60

Peak discharge (base, 2,250 cfs).--Nov. 4 (9 a.m.) 2,550 cfs (6.90 ft); Dec. 15 (9 to 10 p.m.) 

2,710 cfs (7.06 ft).

* Discharge measurement made on this day.

Note. No gage-height record Mar. 11-30; discharge estimated on basis of 1 discharge measurement, 

weather records, recorded range In stage, and records for Warner River at Davlsvllle and South 

Branch Plscataquog River near Goffstown. Stage-discharge relation affected by Ice Dec. 6, 7, 22, 23, 

25-27, Jan. 7-9, 11-14, 18, Jan. 20 to Feb. 12, Feb 14, 15, Feb. 24 to Mar. 2, Mar. 4, 5, 7-10.
102 MERRIMACK RIVER BASIN

North Nashua River near Leominster, Mass.

Location. Lat 42°30'06", long 71°43'23", on right bank 1 1/3 miles upstream, from Wekepeke 

Brook, 2j 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 1955.

Gage. Water-stage recorder. Datum of gage is 270.04 ft above mean sea level, datum of 

1929.

Average discharge. 20 years, 193 cfs.

Extremes.--Maximum discharge during year, 2,510 cfs Dec. 15 (gage height, 6.72 ft); minimum, 18 cfs July 30; minimum daily, 37 cfs Aug. 7.

1935-55: Maximum discharge, 16,300 cfs Mar. 18, 1936 (gage height, 20.53 ft, from 

floodmarksi 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 no gage-height record, shifting 

control, and backwater from aquatic vegetation, which are fair. Flow 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 table, water year 1954-55, except periods of shifting-control (gage 

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

1.4 

2.0 

2.5 

3.0 

3.5

90

150

221

319

4.0 

5.0 

6.0 

7.0

470

1,010

1,780

2,830

Discharge, in cubic feet per second, water year October 1954 to Septeinl°r 1955

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

138

150

162 

156

173

164

136

125

92 53

113

*113

123

96

111

389

155

156

153

137

132

124

106

106

112

112

117

107

168

210

193

4,453

144

1.35

1.55

Nov.

176

147 1,160" 

341

530

330

296

*269

236

213

194

193

170

170

171

159

160

164

180

559

818

618

406

346

420

358

323

313

785

682

11,537

385

3.60

4.01

Dec.

462

365

311 

257

231

218

200

193

193

244

219

194

*192 '335'

1,840

820

5OO

731

1,080

640

485

412

358

330

292

250

257

248

403

510

480

13,251

427

3.99

4.61

Jan.

374

398

420 

335

261

242

230

200

185

205

185

*171

166

150

130

133

144

133

127

115

109

102

105

119

105

108

107

103

91

 mr 84 

so

5,448

176

1.64

1.89

Feb.

98

90

87 

97

84_

88

700 2"I6"

140

132

199

378

198

193

135

120

*150

160

135

130

145

150

650

5OO

250

180

210

300

-

5,909

211

1.97

2.05

Mar.

600-

680 336" 

230

200

210

230

190

170

TTO

300

600

450

350

280

370

380

270

220

200

210

210

*400

343

339

346

353

279

231

£65

348

9,754

315

2.94

3.39

Apr.

371

353

332

348

339

330

363

308

240

211

218

199

196

193

200

193

187

190

187

190

183

183

200

180

S4T

710 558"

485

619

505

9,418

314

2.93

3.27

May

377

33?

281

248

233

*255

204

183

192

155

144

129

129

131

124

126

113

109

101

96

84

77

84

83

84

119

132

99

81

89

122

4,716

152

1.42

1.64

June

223

147

117 

94

89

90

87

*86

83

89

63

180

175

117

97

83

77

66

57

5?

172

396

75T

221

261

140

121

94

83 

76

3,877

129

1.21

1.35

July

74

73

103 

TT

66

68

75

64

54

42

50

49

49

50

*51

57

56

54

52

55

44

61

45

49

49

56

57

57

57

46

40

1,774

57.2

0.535

0.62

Aug.

43

54

46 

48

50

44

37

44

49

53

64

90

215

178

91

76

70

190

*854

*470"

193

166

275

236

136

120

123

108

97 

86

4,394

142

1.33

1.53

Sept.

86

81

71 

62

59

68

67

63

64

50

59

66

62

58

69

54

58

57

69

100

62

61

65

173

Tl?

97

77

93

87 

84

2,241

74.7

0.698

0.78

Calendar year 1954: Max 2,3OO Min 41 Mean 253 Cfsm 2.36 In. 32.12

Water year 1954-55: Max 1,840 Min 37 Mean 210 Cfsm 1.96 In. 26.69

Peak discharge (base, l.OOO cfs). Nov. 3 (5:3O p.m.) 1,760 cfs (5.98 ft); Nov. 29 (3:30 p.m.)

1,050 cfs (5.02 ft); Dec. 15 15 a.m.) 2,510 cfs (6.72 ft); Dec. 18 (12 p.m.) 1,52C cfs (5.7O ft);
MERRIMACK RIVER BASIN 103

Rocky Brook near Sterling, Mass.

Location. Lat 42°26'57", long 71°48'10", on right bank 150 ft downstream from bridge on 

Seaman Road, 0.7 mile upstream from mouth, and 2^ miles west of Sterling, Worcester 

County.

Drainage area. 2.28 sq mi.

Records available.--October 1946 to September 1955.

Gage. Water-stage recorder and concrete control. Altitude of gage is 505 ft (from topographic map).

Average discharge. 9 years, 3.71 cfs.

Extremes.--Maximum discharge during year, 89 cfs Dec. 15 (gage height, 3.57 ft); minimum, 

0.02 cfs all or part of each day Aug. 2-11.

1946-55: Maximum discharge, 395 cfs Sept. 11, 1954 (gage height, 4.58 ft), from 

rating curve extended above 56 cfs; minimum, 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 or no gage-height record 

and those below 1.0 cfs, which are fair. Plow regulated by reservoir since 1949.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

2.7

3.0

3.4

2.8

2.7

2.4

2.3 *-9TT

10.1

10.4

10.1

9.8

9.5

9.5

9.5

24

TT.8

10.4

9.8

9.5

9.2

8.9

8.6

8.6

8.3

8.3

8.6

8.3

13.5

15.7

13.4

274.2

8.85

3.88

4.47

Nov.

11.8

11.1

36

T7.6

13.4

11.8

10.7

*10.1

9.8

9.5

9.2

8.9

7.6

9.8

8.0

6.8

6.3 673"

6.8

18.8

20

13.4

9.5

9.0

13.0

10.4

9.2

8.9

21

12.2

356.9

11.9

5.22

5.82

Dec .

9.2

7.6

6.6

5.7

5.3

4.7

4.4

4.1

4.4

6.1

5.1

4.2

*4.0 578-

39_

14.3

10.9

22

23

13.9

11.6

11.6

10.0

10.0

9.2

8.4

8.2

8.4

13.9

15.8

13.5

323.9

10.4

4.56

5.28

Jan.

10.6

12.8

12.5

10.0

8.4

6.3

5.4

4.0

3.4

3.6

3.0

*2.7

2.8

2.25

2.05

2.15

2.25

1.9

1.8

bl.55

1.3

1.45

1.55

1.7

bl.55

bl.6

bl.4

b.90

b.80

.83

. 78

113.31

3.66

1.61

1.85

Feb.

bO.75

b.73

.72

.70

772

.90

4.8

4.5

3.0

2.8

5.0

7.0

5.5

3.5

2.9

2.5

2.7

3.4

3.7

3.6

3.3

3.3

8.1

TTF

b3.3

2.8

3.2

4.6

-

92.82

3.32

1.46

1.51

Mar.

6.1

5.0

2.8

2.05

2.05

2.9

b3.4

b2.25

1.9 3TB10.3 ^TTB5.4

3.8

3.3

5.4

4.6

3.2

2.8

2.6

2.6

4.0

*9.1

5.6

5.6

4.8

5.9

3.7

3.2

3.4

132.65

4.28

1.88

2.16

Apr.

3.4

3.4

3.3

4.6

4.0

3.7

4.4

3.3

2.8

2.7

2.6

2.45

2.35 F76~

2.6

* 2.45

2.35

2.4

2.35

2.45

2.35

2.6

3.4

2.7

10.8

9.6

7.9

5.2

9.4

5.6

119.75

3.99

1.75

1.95

May

4.2

37F

3.4

3.2

3.0

*3.9

3.2

3.1

3.0

2.5

2.25

2.15

2.05

3.0

2.35

2.05

1.75

1.65

1.45

1.22

1.15

.93

.86

.80

.74

1.07

1.65

1.22

.86

.63

an . OJ.

63.74

2.06

0.904

1.04

June

1.65

1.15

.86

.68

.68

.63

.53

*.53

.53

.49

.40

7.4

377

1.95

1.22

.80

.58

.40

.30

747

3.6

7.0

2.35

1.85

2.25

1.35

1.00

.80

.63

.58

46.33

1.54

0.675

0.76

July

0.49

.92

~M1.75

.53

.72

1.65

1.00

.58

.36

.33

.26

.18

.16

.12

.31

1.00

.53

.30

.21

.14

.10

.08

.08

.08

.08

.07

.08

.08

.06

.05

13.16

0.425

0.186

0.21

Aug.

0.04

.02

752

.02

.02

.02

.04

.05

.02

.03

.04

.24

4.6

6.4

1.75

.74

.36

8.2

*44

~ff.9

3.8

2.6

5.6

6.9

3.3

2.6

3.4

3.4

2.25

1.9

2.15

113.41

3.66

1.61

1.85

Sept.

2.25

1.8

1.65

1.45

1.3

1.16

1.04

.88

.83

.78

.74

.74

.60

.64

.60

.56

.52

.48 iTSSr

10.9

10.6

10.6

10.6

15.0

12. Z

10.6

10.3

10.9

10.0

10.0

141.67

4.72

2.07

2.31

Calendar year 1954: Max 71 Mln 0.04 Mean 5.32 cfsm 2.33 In. 31.67

Water year 1954-55: Max 44 Mln 0.02 Mean 4.91 Cfsm 2.15 In. 29.21

Peak discharge (base, 45 efs). Oct. 16 (5:30 a.m.) 45 cfs (3.28 ft); Nov. 3 (12:30 p.m.) 48 cfs 

(3.31 ft); DecT 15 (2 a.m.; 89 cfs (3.57 ft); Dec. 18 (8 p.m.) 57 cfs (3.38 ft); Aug. 19 (11:30 a.m. 

to 12 m.) 87 cfs (3.56 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Feb. 3-17; discharge estimated on basis of weather records, recorded 

range In stage, and records for Ware River near Barre. Discharge In cubic feet per second per 

square mile and runoff In Inches may not represent natural flow because of regulation.
104 MERRIMACK RIVER BASIN 

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 1955.

Average discharge. 59 years, 187 cfs (adjusted to present drainage area).

Remarks. Flow regulated by Wachusett Reservoir and several ponds. Records adjusted for 

change 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). WSP 1051: 1928.

Monthly discharge and ralnfal1, water year October 1954 to September 1955

Month

December. ......................

Calendar year 1954. ..........

September. .....................

Water year 1954-55. ...........

Runoff 

(millions of 

gallons)

12,378.2

67,483.7

2,149.7

65,566.2

Discharge pe

Millions 

of gallons 

per day

3.708

1.717

.665

1.668

r square mile

Cubic feet 

per second

5.74

2.66

3 44

1.03

2.58

(Inches)

6.61

36.06

2.11

3.52

1.15

35.02

(Inches)

6.12

5.66

56.66

3.41

4.00

2.77

52.04
MERRIMACK RIVER BASIN 105

Squannacook River near West Groton, Mass.

Location. Lat 42°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 1955.

Gage. Water-stage recorder. Datum of gage is 244.27 ft above mean sea level, datum of 

1929.

Average discharge. 6 years, 119 cfs.

Extremes.--Maximum discharge during year, 1,160 cfs Dec. 15 (gage height, 5.64 ft); minimum daily, 5.1 cfs Aug. 10.

1949-55: Maximum discharge, 2,470 cfs Sept. 12, 1954 (gage height, 6.99 ft); minimum daily, 4.3 cfs dug. 14, 1950.

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. Plow regulated by mill 

above station. Entire flow from 2.10 sq mi above outlet of Pitchburg Reservoir 

diverted for municipal supply of Pitchburg during most years.

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

1.4 3.3

1.5 5.3

1.7 11

1.9 20

2.1 32

Discharge, In cubic feet per second, wate

138

234

362

760

October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

Oct.

69

69

54

76

55

61

57

53

53

47

65

55

55

51

51

133

269

160

a!20

a96

82

a 80

a75

a62

a65

a6O

a58

a58

a70

a 100

a!25

2,484

80.1

1.28

1.47

Nov.

*120

99

240

678

364

a215

a!70

a!55

132

12O

112

107

99

100

104

88

8799"

100

191

507

535

325

232

225

234

200

192

297

499

6,626

221

3.52

3.92

Dec.

325

239

192

155

b!4O

b!40

*127

122

122

140

135

124

124

114

697

753

368

277

638

502

322

250

b220

210

182

blSO

164

155

204

269

291

7,851

253

4.03

4.65

Jan.

216

204

252

216

177

162

b!55

127

bllS

125

*112

100

96

b88

76

b78

90

67

69

68

b62

55

59

65

59

58

59

b53

39

43

45

3,190

103

1.64

1.89

Feb.

43

b39

b37

37

55

42

167

184

94

73

92

239

b!45

b95

*b69

b64

72

65

66

82

96

94

169

342

T76

122

112

168

_

-----

3,019

108

1.72

1.79

Mar.

214

393

230

146

113

124

136

113

blOO

15T

162

396

Z95

252

184

188

248

177

135

124

132

125

169

*204

202

206

241

202

157

177 

274

5,923

191

3.04

3.51

Apr.

322

317

294

267

257

236

246

216

171

160

164

146

140

136

140

135

133

133

124

140

133

127

132

116

200

449

449

*333

330

381

6,527

218

2.47

3.87

May

257

210

171

153

141

143

132

114

128

110

101

96

84

94

89

99

78

70

69

62

61

35

61

62

48

56

60

78

41

50

79

3,032

97.8

1.56

1.80

June

87

93

82

57

34

58

58

49

42

*39

34

33

102 ~87

67

48

38

35

29" 18

33

40

71

42

76

40

44

33

26

29

1,524

50.8

0.809

0.90

July

25

16

20

21

20

21

21

22

22

17

22

22

2725"

*15

7.2

6.9

6.6

6.6

*6.6

6.4 6~4

9.3

11

13

18

21

19

20

19 

12

505.0

16.3

0.260

0.30

Aug.

8.0

11

11

15

13

9.5

5.6

5.6

5.3

5.1

5.3

7.5

18

110

78

49

24

36

192

428

192

100

77

74

58

47

43

41

46

*32 

32

1,778.9

57.4

0.914

1.05

Sept.

30

27

24

22

21

28

29

29

26

23

16

9.9

14

17

15

12

15

11

21

24

17

14

13

23

26

41

2T

31

23

28

650.9

21.7

0.346

0.39

Calendar year 1954 : Max 1,870 Mln 12 Mean 153 Cfsm 2.44 In. 32.97

Water year 1954-55 : Max 753 Mln 5.1 Mean 118 Cfsm 1.88 In. 25.54

Peak discharge (base, 700 cfs).--Mov. 4 (1O a.m.) 776 cfs (5.03 ft); Dec. 15 (9:30 to 11 

1,160 cfs (5.64 ft); Dec. 19 (4 to 5:30 p.m.) 755 cfs (4.99 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range 

and records for Souhegan River at Merrimack, N. H.

b Stage-discharge relation affected by Ice.
106 MERRIMACK RIVER BASIN

Nashua River at East Pepperell, Mass.

Location. Lat 42°40'03", long 71°34'32", on right bank 200 ft downstream from powerplant 

of St. Regis 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 117 sq mi for use of Boston metropolitan district and city of Worcester).

Records available. October 1935 to September 1955.

Gage. Water-stage recorder. Datum of gage is 169.04 ft above mean sea level, datum of 

TT929.

Average discharge. 20 years, 530 cfs (adjusted for wastage into Nashua River).

Extremes. Maximum discharge during year, 3,270 cfs Dec. 20 (gage height, 7.43 ft); minimum daily, 11 cfs May 30.

1935-55: 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 above 1,800 cfs and fair below. Extremes and 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. WSP 801: Drainage area.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14 

15

16

17

18 

19

20

21

22

23

24

25

26

27 

28

29 

30

31

Total

Mean

(t)

Oct.

570

182

254

*861

772

517

481

309 

294

107

269

*362

505

651 

561

687

516

1.060 

960

795

633

509

505

122

261

346

438 

521

552 

759

15,648

505

45.4

Nov.

778

741

835

1,640

2,160

1,310

945

1,130 

990

975

960

930

258

300 

907

960

736

642 

642

810

825

2,050

1,770

1,380

1,020

1,500

1,340 

918

1,480

1,920

32,852

1,095

107

Dec.

2,020

1,740

1,520

1,060

975

1,170

*1,020

990

975

960

333

ST?

955

985 

1,390

2,880

2,700

1,910 

2,200

2,910

2,600

2,190

1,900

1,450

1,300

1,110

1,320

1,140

1,180

1,520

1,650

46,632

1,504

442

Jan.

1,400

1,320

1,690

1,530

1,300

1,120

1,040

855 

605

936

*920

723

615

610 

602

185

337

477 

477

538

620

525

155

237

335

481

538

501

396

232" 118 

21,418

691

161

Feb.

279

279

250

239

236

610" 85

 1,060 810"

513

328

827

366

803 

*606

501

369

465 

505

171

729

696

692

845

1,050

940

222 

834

-

15.310

547

39.3

Mar.

955

1,100

1,230

1,000

940

391

97T

950 

925

714

754

1,060

1,180

1,580 

1,090

985

1,100

1,080 

960

415

803

930

930

975

1,100

1,150

1,000 

*1,380

1,110

995

1,050

30,609

987

138

Apr.

1,170

1,190

817

1,220

1,120

1,040

1,020

1,000 

980

431

903

950

759

660 

660

610

325

782 

815

552

552

597

620

210

764

1,360

1,820 

*1,800

1,740

1,820

_--__ -_

28,287

943

123

May

1,290

1,400

1, 170

1,040

970

940

940

443 

934

935

700

620

615

574

133

360

477

473 

473

469

461

104

259

335

339

343

343

687

232

.11

264

18,334

591

115

June

534

660

602

373

102

260

343

298 

294

287

186

217

704

705

*561

299

100

186 

163

403

335

476

714

705

211

353

646 

411

276

309

11,713

390

50.4

July

350

TIT

118

202

346

309

272

250 

254

104

208

257

254

254 

250

211

57

133 

171

*171

203

218

100

*130

279

239

221 

229

229

95

127

6,352

205

57.7

Aug.

283

239

232

218

218

221

77

225 

287

283

287

396

870

270 

660

411

324

548 

1,120

2,060

1,920

1,520

1,140

1,120

1,090

850

584

162

620

754

579

19,571

631

80.9

Sept.

530

384

358

*103

!£

296

365

358 

350

335

81

206

265

261 

324

369

365

107 

550

434

362

272

196

261

384

640

556 

548

411

365

10,048

335

74.6

Adjusted for wastage (figures represent net discharge from net drainage area)

Mean 

Cfsm 

In.

459

1.45 

1.68

988 

3.13 

3.49

Calendar year 1954 : 

Water year 1954-55 :

1,062 

3.36 

3.88

530 

1.68 

1.93

508 

1.61 

1.67

849 

2.69 

3.10

820 

2.59 

2.90

Observed

Max 4,760 Min 6.1 Mean 755 

Max 2,910 Mln 11 Mean 703

476 

1.51 

1.74

340 

1.08 

1.20

147 

0.465 

0.54

550

1.74 

2.01

260 

0.823 

0.92

Adjusted

Mean 697 Cfzm 2.21 In. 29.95 

Mean 583 Cfsm 1.84 In. 25.06

* Discharge measurement made on this day.

t Water wasted In diverting drainage from basin of South Branch Nashua River for use of Boston 

metropolitan district, equivalent In cubic feet per second. Records furnished ly Water Division of 

Metropolitan District Commission.
MERRIMACK RIVER BASIN 107

Assabet River at Maynard, Mass.

Location.---Lat 42°25'55", long 71°27'0l", on right bank at Maynard, Middlesex County, 

150 "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 1955.

Gape. Water-stage recorder. Altitude of gage is 145 ft (from topographic map).

Average discharge. 14 years, 173 cfs.

Extreme^. Maximum discharge during year, 4,250 cfs Aug. 20 (gage height, 8.94 ft); maximum gage height/ 8.96 ft Aug. 20 (backwater from debris); minimum daily discharge, 

2.9 cfs July 24, 30.

1941-55: Maximum discharge, that of Aug. 20, 1955; minimum daily, 0.8 cfs Oct. 4,

Remarks. Records good except those for period of doubtful gage-height record, which are 

fair. Low flow regulated by mills above station; greater regulation prior to 1953.

Revisions (water years). WSP 1231: 1945-46.

Rating tables, water year 1954-55 (gage height, In feet, and discharge,

In cubic feet per second) 

(Backwater from aquatic vegetation June 1 to July 27)

Oct. 1 to Aug. 19 Aug. 20 to Sept. 30

1.4

1.5

1.6

1.7 

1.9 

2.2

1.4 

4.2

8.9

16

35

78

2.5 

3.0 

4.0 

5.0 

5.5

133

260

610

1,090

1,380

2.3 

2.5 

3.0 

3.5 

4.0

80

113

222

365

555

5.0 1,040

6.0 1,680

7.0 2,460

8.0 3,320

8.5 3,810

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

209

199

194

192

179

177

167

157

146

148

160

148

146

144

140

248

357

351

296

251

218

194

174

162

157

146

146

144

151

202 

240

5,943

192

1.66

1.91

Nov.

*248

231

310

436

483

436

377

332

293

272

251

237

226

220

209

204

194

196

204

240

348

462

462

412

422

454

436

401

433

487

9,916

331

2.85

3.18

Dec.

476

440

398

351

322

3OO

275

263

263

300

325

309

290

281

550

795

*736

619

686

750

686

558

483

483

462

415

401

380

412

655

14,203

458

3.95

4.55

Jan.

655

598

582

550

505

454

418

374

348

335

303

272

260

*225

220

207

204

184

179

169

148

148

140

148

142

140

137

121

121

106 

104

8,497

274

2.36

2.72

Feb.

100

95

92

35

93

95

205

275

269

212

196

293

306

28T

218

169

192

240

263

260

246

234

*243

284

284

257

237

251

-

5,986

214

1.84

1.92

Mar.

284

335

354

325

278

278

300

296

300

290

325

422

501

480

426

398

408

415

384

348

328

354

498

*646

*598

516

512

498

458

426 

394

12,375

399

3.44

3.97

Apr.

374

351

338

341

341

341

338

335

319

303

290

275

260

254

248

234

231

226

218

228

223

223

251

260

300

370

429

*436

458

483

9,278

309

2.66

2.97

May

3"77 458

300

248

228

226

228

223

209

194

177

157

144

137

133

131

117

111

100

93

85

80

78

70

65

64

62

59

56_

56 

65

4,731

153

1.32

1.52

June

88

104

102

92

81

90

85

*80

80

78

72

95

196

215

172

123

95

78

68

6F

73

121

148

135

133

129

115

92

80

70

3,158

005

0.905

1.01

July

70

65

62

72

80

68

81

~99 102

80

70

65

64

64

64

36

4.2

45

58

*59

58

51

17

*2.9

40

22

34

39

20

2.9

3 2

1,598.2

51.6

0.445

0.51

Avg.

22

21

22

25

32

13

45~ 4.2

29

26

42

54

41

16

60

*88

73

140

1,110

*5,650

3,360

*2J.20

*1,360

1,060

890

*701

597

543

*491

414

3f3

17,402.2

561

4.84

5.58

Sept.

323

3TT

285

*2S1

222

200

178

162

143

131

131

133

122

117

113

108

101

101

110

127

106

103

94

108

180

210

185

160

*147

145

4,807

160

1.38

1.54

Calendar year 1954: Max 1,970 Mln 8.2 Mean 264 Cfsm 2.28 In. 30.96

Water year 1954-55: Max 3,650 Mln 2.9 Mean 268 Cfsm 2.31 In. 31.38

* Discharge measurement made on this day.

Note. Doubtful gage-height record Feb. 24 to Apr. 27; discharge computed from gage-height graph 

adjusted on basis of 4 discharge measurements and change in stage when intake draw-down was eliminated.
108 MERRIMACK RIVER BASIN

Sudbury River at Framingham Center, Mass.

Location. Lat 42°17 I 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 January 1881.

Records available.--January 1875 to September 1955.

Average discharge.--80 years, 112 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. Par*; of flow from 

Wachusett Reservoir on South Branch Nashua River is diverted into Sudoury Reservoir 

en route to Boston metropolitan district.

Cooperation.--Records furnished by Water Division of Metropolitan District Commission. 

Revisions (water years).--WSP 1051: 1937.

Monthly discharge and rainfall, waber year October 1954 to Septembe- 1955

Month

Calendar year 1954....

June .....

September ...............

Water year 1954-55....

Runoff 

(millions of 

gallons)

1,852.1 

4,720.5 

6,589.0

40,793.2

3,310.3 

3,300.5 

5,773.7 

2,978.6 

1,487.7 

360.7 

-581.6 

10,652.7 

1,827.6

42,271.8

Discharge per square mile

Millions 

of gallons 

per day

0.794 

2.09E 

2.826

1.486

1.420 

1.567 

2.477 

1.320 

.638 

.160 

-.249 

4.570 

.810

1.540

Cubic feet 

per second

1.23 

3.24 

4.37

2.30

2.20 

2.42 

3.83 

2.04 

.987 

.247 

-.386 

7.07 

1.25

2.38

Runoff 

(inches)

1.42 

3.61 

5.O4

31.21

2.53 

2.53 

4.42 

2.28 

1.14 

.28 

' -.44 

8.15 

1.40

32.36

Rainfall 

(Inches)

2.69 

5.39 

5.61

56.86

.83 

4.11 

4.57 

3.18 

2.45 

3.20 

2.67 

18.51 

2.30

55.51

Lake Cochituate Outlet at Cochituate, Mass.

Location. Lat 42°18'45", long 71°23'15", at outlet of three-eights of a mile north of

Cochituate railroad station, Middlesex County, and l£ miles upstream from Sudbury River.

Drainage area. 17.40 sq mi since January 1937.

Records available.--January 1863 to September 1955.

Average discharge. 92 years, 25.9 cfs (adjusted to present drainage are?).

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 1954 to Septembe" 1955

Month

October

December .................

Calendar year 1954.....

April. ...................

May ......................

July .....................

September. ...............

Water year 1954-55 .....

Runoff 

(millions of 

gallons)

569.4 

1,377.1 

1,979.2

14,872.5

1,086.0 

1,186.0 

1,777.4 

1,103.6 

682.8 

597.1 

232.1 

2,323.6 

671.7

13,586.0

Discharge per square mile

Millions 

of gallons 

per day

1.056 

2.638 

3.669

2.342

2.013 

2.434 

3.295 

2.114 

1.266 

1.144 

.430 

4.308 

1.287

2.139

Cubic feet 

per second

1.63 

4.08 

5.68

3.62

3.12 

3.77 

5.10 

3.27 

1.96 

1.77 

.67 

6.66 

1.99

3.31

Runoff 

(Inches)

1.88 

4.55 

6.54

49.18

3.59 

3.92 

5.88 

3.65 

2.26 

1.98 

.77 

7.68 

2.22

44.92

Rainfall 

(inches)

2.99 

7.04 

6.93

66.90

.89 

4.49 

4.85 

4.14 

1.42 

4.20 

2.99 

15.71 

2.72

58.37
MERRIMACK RIVER BASIN 

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

109

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 92.6 sq mi for use of Boston metropolitan district).

Records available. October 1936 to September 1955 (October, November 1936 monthly discharge only, pub1ished in WSP 1301).

Gage. Water-stage recorder. Datum of gage is 67.41 ft above mean sea level, datum of 

^1929.

Average discharge. 19 years, 455 cfs (adjusted to net drainage area).

Extremes. Maximum discharge during year, 4,540 cfs Aug. 23 (gage height, 8.97 f 1:); minimum, 50 cfs Aug. 6, 9; minimum daily, 80 cfs Aug. 10.

1936-55: Maximum discharge, that of Aug. 23, 1955; 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 

aquatic vegetation, which are good. Daily discharge includes water wasted from 

92.6 sq mi in basir, of Sudbury River and Lake Cochituate. Water diverted abive station for use of city of Lowell. Flow regulated by mills above station.

Rating table, water year 1954-55, except periods of lee effect or backwater 

from aquatic vegetation (gage height, In feet, and discharge, In cubic 

feet per second)

4.0 

4.2 

4.5 

5.0

79

120

204

430

6.0 

7.0 

9.0

1,100

2,040

4,580

Discharge In cubic feet per second, water year October 1954 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

(t)

Oct.

1.190

1,120

1,070

1,0£0

980

935

898

861

826

798

784

749

716

690

664

690

722

791

812

812

805

777

735 

696

683

650

638

618

618

624

670

24,642

795

221

Nov.

728

735

861

972

1,060

1,090

1,130

1,140

1,110

1,080

1,040

995

935

912

890

854

819

791

784

819

920

1,020

1,100 

1,140

1,180

1,240

1,270

1,300

1,360

1.400

30,675

1,022

342

Dec.

1,420

1,420

1,400

1,320

1,280

1,220

1,160

1,120

1,080

1,090

1.070

1,080

1,080

1,080

1,300

1,470

1,620

1,750

1,870

*1,920

1.970

1,970

1,880 

1,810

1,720

1,640

1,580

1,520

1,480

1,510

1,590

45,420

1,465

452

Jan.

1,670

1,760

1.770

1,760

1,720

1,670

1,590

bl,370

1,480

1,410

1,310

1,240

1,160

bl,040

bl,070

b995

958

b890

868

819

b735

749

728 

*709

683

657

638

b540

369

557

545

33,660

1,086

332

Feb.

509

b475

b435

b430

419

414

521

593

670

702

735

833

b855

905

905

868

861

882

912

942

950

942

942 

950

*958

950

935

935

21,428

765

272

Mar.

950

995

1,020

1,020

1,020

1,020

1,030

1,020

1,020

1,020

1,050

1,080

1,170

1,250

1,290

1,310

1,340

1,340

1,300

1,280

1,240

1,210

1,300 

1,410

1,510

1,540

1.600

1,590

1,530

1,470

1,420

38,345

1,237

394

Apr.

*1.550

1,260

1,190

,130

,110

,090

,070

,020

988

958

920

868

847

826

798

735

722

716

696

664

644

638

605

612

683

735

826

920

1,030

1,110

26,761

892

241

May

1,170

1.200

1,160

*1,100

1,020

972

920

905

890

847

798

756

709

664

624

624

581

545

509

468

402

392

402 

365

330

297

288

251

247

228

251

19,915

642

173

June

255

288

325

320

335

360

350

325

307

302

267

293

365

402

408

414

375

311

297

302

284

284

293 

297

284

302

335

316

302

284

9,582

319

131

July

263

239

263

267

263

243

251

251

251

279

345

293

279

267

251

222

239

255

218

188

188

*185

167 

176

188

159

148

142

135

135

148

6,898

223

85.0

Aug.

165

140

135

102

110

92

88

115

91

80

86

166

114

208

225

198

185

232

605

1,200

*2,240

*3,800

*4.490 

4,430

4,230

3,970

3,720

3,480

*3,190

2,940

2,680

43,507

1,403

657

Sept.

2.440

2,200

2,020

1,850

1,720

1,590

1,460

1,320

1,220

1,110

1,040

988

920

861

805

742

709

644

644

618

587

575

569 

557

581

612

631

631

599

581

30,824

1,027

26.6

Adjusted for wastage and diversion (figures represent net discharge from net drainage area)

Mean 

Cf sm 

In.

574 

1.84

2.12

68C 

2. IE 

2.4;

Calendar year 1954: 

Water year 1954-55:

1,013 

3.25 

3.74

754 

2.42 

2.79

493

1.58 

1.65

843 

2.70 

3.12

651 

2.09 

2.33

469 

1.50 

1.73

Observed

Max 3,270 Min 146 Mean 933 

Max 4,490 Min 80 Mean 909

188 

0.603 

0.67

138 

0.442 

0.51

747 

2.39 

2.76

1,001 

3.21 

3.58

Adjusted

Mean 639 Cfsm 2.05 In. 27.81 

Mean 630 Cfsm 2.02 In. 27.43

* Discharge measurement made on this day.

t Water wasted from 92.6 sq ml 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 livision of 

Metropolitan District Commission and by city of Lowell.

b Stage-discharge relation affected by lee.

Note. Backwater from aquatic vegetation May 5 to Aug. 23.
110 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 

River, at Lowell, Middlesex County.

Drainage area. Total above gage, 4,635 sq mi; net above gage, 4,425 sq mi (diversions as 

needed from 210 sq mi for use of Boston metropolitan district and city of Worcester).

Records available. June 1923 to September 1955.

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 7CO 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. 32 years, 7,240 cfs (adjusted for wastage into Merrimack River).

Extremes. Maximum discharge during year, 27,900 cfs Dec. 20 (gage height, 48.27 ft); 

minimum daily, 270 cfs Aug. 7.

1923-55: Maximum discharge, 173,000 cfs Mar. 20, 1936 (gage height, 68.4 ft, from 

floodmarks); minimum daily, 199 cfs Sept. 23, 1923.

Remarks. Records excellent except those for periods of ice effect 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 Rivers 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 

83 and 111 for description and month-end usable contents of many of these reservoirs.

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

41.0

41.2

41.5

42.0

42.5

234

383

698

1,520

2,740

43.0

44.0

46.0

49.0

4,270

7,820

16,400

31,900

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

(t)

Oct.

7,340

6,410

5,940

6,660

6,500

6,150

6,130

5,770

4,760

4,460

5,890

5,240

5,530

5,740

5,900

6,550

9,080

10.900

9,330

7,940

7,190

6,620

5,870

5,460

5,740

5,500

5,160

5,160

5,570

5,700

6,190

196,380

6,335

268

Nov.

7,230

7,190

8,280

15, 900

20, 000

17,500

14,600

12 , 600

10,700

10,000

9,210

8,700

7,740

6,890

*7,460

7,310

7,460

7,380

7,080

7,900

13,300

21,400

24 . OOP

20, 100

15,900

13,900

12,600

11,800

12,400

16,600

363,130

12,100

451

Dec.

18,4OO

16,700

14,900

12,800

11,500

10,600

8,830

9,250

9,000

9,040

9,170

8.460

8,750

8,790

13,300

21,000

21,000

18 , 200

22,200

27.100

24,400

19,500

16,400

15, 300

13,900

12,200

12,400

12,400

12,500

14,100

14, 900

446,990

14,420

896

Jan.

14.500

13,800

14,100

14,100

13,100

12,300

11,500

9,250

10,200

10,600

10,000

9,670

9,170

8,580

6,810

6,930

7,500

b7,100

6,960

7,150

b7,200

5,840

5,670

5,940

5,840

5,600

5,870

b5, 900

4,920

4.820

4,990

265,710

8,571

494

Feb.

4,740

4,680

4,590

4,410

5.210

3,580

5,910

7,270

7,540

6,620

6,230

9,530

12.2OO

7, 750

8,500

7,660

7,380

7,120

6,590

6,480

7,000

7,080

8,100

10,400

*11,100

11,100

10,200

9,800

-

208,770

7,456

313

Mar.

10,600

14,900

16.500

14, 300

11,100

10, 700

9,460

9,120

9,000

8.500

8,790

12,300

14,900

15,700

14,300

13,600

14,900

14, 600

13,100

11,400

10,300

9,800

10,700

10,600

10,800

10,900

11,200

10,600

10,400

9,420

10,200

362,290

11,690

533

Apr.

12.100

15^900

15,900

15,400

16,600

18,200

19,000

18,000

15,600

15,000

18,100

20.4OO

18,400

16,500

18.6OO

22 . 400

20,800

17,600

17,000

19,200

17,900

15, 100

13,800

14, 200

16,200

19,600

20,400

19,400

19,000

520, 600

17,350

366

May

17.600

16,300

14, 700

*13,500

12,800

12,100

11,900

10, 6OO

9,800

9,670

9,800

8,660

7,780

7,040

6,590

6,810

6,260

6,190

5,840

5,290

4,210

3,920

4,990

4,530

4,170

5.860

4,110

4,140

4,110

4,490

5,400

247,160

7,973

290

June

9,320

14 . 700

14,200

11,600

8,960

J,660

6,550

6,440

5,530

5,060

5.580

4,220

6,700

8,380

9,630

8,220

7,000

5,230

4,690

5,430

4,760

4,460

4,300

4,530

4,370

4,430

5,460

4,990

4,590

4,140

199,130

6,638

183

July

3.760

27340

2,390

2,770

3.180

2,800

2,740

2,770

2,970

2,210

3,360

2,950

2,190

2,000

1,910

1,480

614

2,130

2,150

2,200

2,490

2,490

1,580

487

2,210

2,110

2,140

2,180

2,140

1,480

445

68,664

2,215

144

Aug.

2,030

1,950

1,660

1,600

1,530

1,180

270

1,480

1,640

1,650

1,700

2,350

2,460

3,540

5,310

7,270

6,300

5,500

8,000

9,880

10,600

11.500

10,700

9,880

9,000

8,540

7,860

7,250

7,380

6,370

5,980

161,940

5,224

739

Sept.

5.940

5,740

4,210

4,370

4.O1O

5,120

4,820

4,460

4,400

3,170

1,510

4,220

4,06O

3,760

3,440

2,960

2,100

843

2,530

2,650

5,140

5,570

5,250

2,440

812

5,050

2,590

5,000

5,180

3,390

102,495

3,416

102

Adjusted for wastage (figures represent net discharge from net drainage area)

Mean 

Cfsm 

In.

6,067 

1.37 

1.58

11,65C 

2.6! 

2.94

Calendar year 1954; 

Water year 1954-55:

13, 520 

3.06 

5.52

8,077 

1.85 

2.10

7,145 

1.61 

1.68

11,160 

2.52 

2.91

16,980 

5.84 

4.28

7,685 

1.74 

2.00

Observed

Max 47,400 Mln 570 Mean 10,710 

Max 27,100 Mln 270 Mean 8,612

6,455 

1.46 

1.65

2,071 

0.468 

0.54

4,485 

1.01 

1.17

5,514 

0.749 

0.84

Adjusted

Mean 10,550 CfSTi 2.54 In. 51.78 

Mean 8,211 Cfs-n 1.86 In. 25.19

* Discharge measurement made on this day.

t Water wasted from 210 sq ml In basins of Sudbury and South Branch Nashua Rivers and Lake 

Cochituate, equivalent In cubic feet per second. Records furnished by Water Division of Metropolitan District Commission.

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.
MERRIMACK RIVER BASIN 111

Reservoirs in Merrimack River basin

Newfound Lake on Newfound River, 1 2/3 miles north of Bristol, N. H., used for recreation 

and for storage of water for power, has usable capacity of 1,690,000,000 cu ft. Records furnished by Public Service Co. of New Hampshire.

Franklin Falls Reservoir on Pemigewasset River, 2 miles north of Franklin, N. H., completed in 1942, used for flood control, has usable capacity of 6,640,000,000 cu ft. 

Records furnished by Corps of Engineers.

Merrymeeting Lake on Merrymeeting River, 2| miles northeast of Alton, N. H., used for 

recreation and for storage of water for power, has usable'capacity of 368,000,000 

cu ft. Records furnished by Public Service Co. of New Hampshire.

Lake Wentworth above Lake Winnipesaukee, at Wolfeboro Falls, N. H., used for recreation 

and for storage of water for power, has usable capacity of 854,000,000 cu ft. Records 

furnished by 0. P. Berry Co.

Lake Winnipesaukee on Winnipesaukee River (see p. 83).

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 Falls Brook, 2£ miles north of Auburn, N. H., completed in 1939, 

used for storage of water for municipal supply and for power, has usable capacity of 

182,000,000 cu ft. Records furnished by Manchester Water Works.

Massabesic Lake on Cohas Brook, 2| miles southeast of Manchester, N. H., used for storage 

of water for municipal supply, has usable capacity of 724,000,000 cu ft. Records 

furnished by Manchester Water' Works.

Month-end usable contents, In millions of cubic feet, water year October 1954 to Septe-nber 1955

Date

Sept. 30, 1954.

Jan 31, 1955.

Sept. 30. ......

Newfound 

Lake

1,528

907

1,598

969

Franklin 

Palls 

Reservoir

162

132

136

Merrymeetlng 

Lake

322

210

149

Lake 

Wentworth

905

677

618

Edward 

MacDowell 

Reservoir

14.4

14.0

16.7

Blackwater 

Reservoir

1.0

.5

20.4

.4

Tower Hill 

Pond

178.9

95.4

183.4

93.3

Massabesic 

Lake

513

467 

564

683

535
112 PARKER RIVER BASIN

Parker River at Byfield, Mass.

Location.--Lat 42°45'10", long 70°56'46", on left bank 1,400 ft downstrerm from dam, half 

a mile south of Byfield, Essex County, 0.7 mile upstream from Wheeler Brook, and 

S-g miles southwest of Newburyport.

Drainage area. 21.6 sq mi.

Records available. October 1945 to September 1955.

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. 10 years, 34.3 cfs.

Extremes. Maximum discharge during year, 147 cfs Dec. 20 (gage height, 3.36 ft); minimum 

daily, 0.47 cfs Aug. 10.

1945-55: Maximum discharge, 352 cfs Mar. 23, 1948 (gage height, 4.81 ft); minimum 

daily, 0.12 cfs July 30, 1952.

Remarks.--Records excellent except those below 2.5 cfs, which are good. Diurnal fluctuation caused by mill above station. Some regulation at low flow by ponds above station.

Rating table, water year 1954-55 (gage height, In feet, and 

discharge, In cubic feet per second)

1.2

1.3

1.4

1.5

1.6

0.41

1.25

2.45

4.4

7.3

2.1 

2.5 

3.0 

3.5

61

107

163

Discharge, In cubic feet per second, water year October 1954 to September 1955

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.

35 

33

31

29

29

28

26

23

21

19

19

21

22

22

20

23

22

25

£6

25

24

22

21

19

18

17

17

16

T7

19 

21

71.0

22.9

1.06

1.22

Nov.

25

*31

49

63

70

66

60

59

55

50

44

40

38

37

36

33

31

30

31

36

42

48

50

47

48

49

50

50

60

69

1,397

46.6

2.16

2.41

Dee.

75 

70

63

56

52

48

44

*42

42

47

50

50

46

50

92

130

127

124

139

144

136

120

110

109

99

87

80

74

78

94

2,586

83.4

3.86

4.45

Jan.

109 

107

107

105

96

88

76

73

66

60

55

50

47

42

39

36

*34

32

30

28

25

24

22

22

21

20

19

18

17

15 

15

1,498

48.3

2.24

2.58

Feb.

14

13

12

12

12

12

21

25

27

27

33

50

58

*50

42

38

39

44

48

55

63

61

62

64

63

57

54

56

-----

1,112

39.7

1.84

1.91

Mar.

62 

67

68

61

54

53

54

53

52

52

56

69

80

76

73

71

70

62

56

58

*56

59

70

80

§1

83

83

78

67

69 

67

2,046

66.0

3.06

3.52

Apr.

63 

58

54

52

50

48

47

46

43

42

39

37

36

34

33

31

30

28

29

29

30

31

31

31

*37

48

65

71

76

81

1,330

44.3

2.05

2.29

May

79 

74

67

61

56

55

52

51

50

49

46

43

41

39

36

35

33

31

29

27

25

24

22

21

19

18

17

15

14

14 

15

1,156

37.3

1.73

1.99

June

14 

15

15

15

15

14

13

13

11

11

10

14

15

17

18

17

15

14

13

12

10

12

14

16

17

16

*15

14

12

11

418

13.9

0.644

0.72

July

10

9.3

8.7

7.6

7.0

6.9

6.6

6.3

6.0

5.7

5.2

*.<.8

4.3

3.9

3.7

3.5

3.3

3.2

3.1

2.8

2.35

2.2

2.2

1.95

1.09

1.21

1.4

1.35

1.25

1.25 

1.25

129.40

4.17

0. L93

0.22

Aug.

1.25 

1.25

1.15

1.15

1.05

1.05

.77

.75

.54

.47

.54

.77

.94

.69

.69

.77

.77

1.9

7.2

11

21

25

27

28

27

27

27

25

25

24 

22

312.70

10.1

0.468

0.54

Sept.

§

17

16

14

13

12

10

9.3

8.7

8.0

7.3

6.6

6.0

5.7

5.2

4.6

4.4

3.9

4.2

3."

3.5

3.3

5.0

5.4

5.4

5.4

6.0

*5.7

5.7

245.2

8.17

0.378

0.42

Calendar year 1954: Max 242 Mln 2.6 Mean 5O.3 Cfsm 2.33 In. 31.61

Water year 1954-55: Max 144 Mln 0.47 Mean 35.5 Cfsm 1.64 In. 22.27

Discharge measurement made on this day.
IPSWICH RIVER BASIN 113

Ipswich River at South Middleton, Mass.

Location.--Lat 42°34'10", long 71°01'39", on right bank 700 ft downstream from Boston 

Street Bridge at South Middleton, Essex County, 1.3 miles downstream from V r ills Brook, 

and 2 miles south of Middleton.

Drainage area.--43.4 sq mi.

Records available. June 1938 to September 1955.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 45 ft (from topographic map).

Average discharge.--17 years, 67.2 cfs (adjusted for diversions).

Extremes.--Maximum discharge during year, 302 cfs Dec. 19 (gage height, 4.415 ft); minimum, 0.7 cfs Aug. 5, 8-11.

1938-55: Maximum discharge, 646 cfs Mar. 21, 1948 (gage height, 5.895 ft); minimum, 0.25 cfs Sept. 19, 1953.

Remarks.--Records excellent except those for periods of ice effect or no gage-height record, which are fair. Water diverted above station for municipal supplies of Reading, 

Lynn, and Peabody. Regulation at low flow by mill above station.

Revisions (water years).--wSP 1301; 1942(M).

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. I to Dec. 19 Dec. 20 to Sept. 30

79

103

3.0 167

4.0 257

5.0 372

0.4

1.5

3.6

7.3

12

27

2.0 

3.0 

4.0 

5.0

111

174

260

372

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

27

28

29

30

31

Total

Mean

(t)

Oct.

*85

78

75

62

68

63

60

53

45

41

40

38

37

35

11

46

63

58

56

58

57

54

47

40

36

33

31

31

32

54

69

1,574

50.8

1.45

Nov.

63

*6O

116

153

159

158

158

151

139

126

114

108

96

92

84

74

62

60

61

75

98

106

111

120

145

153

144

135

152

175

3,454

115

1.43

Dec.

164

153

143

130

121

*110

103

98

102~ 94

106

101

98

98

202

225

216

229

292

283

253

222

235

210

b!97

b!78

154

145

162

196

E28

5,248

169

1.44

Jan.

215

229

*246

258

200

187

167

153

138

128

111

t)109

103

b94

91

86

69

67

61

56

49

48

44

43

40

38

36

35

33

31

29

3,164

102

1.48

Feb.

27

25

25

25

2±

25

*52

56

*54

56

73

b!41

bT20"

99

97

94

101

112

109

109

113

117

120

124

116

112

109

116

-

2,351

84.0

1.42

Mar.

*123

146

140

135

119

125

137

b!34

128

123

138

163

178

182

171

170

176

163

149

138

131

134

186

188

185

188

204

1ST

163

158

145

4,813

155

1.49

Apr.

*134

125

117

114

110

108

108

105

101

97

94

91

74

82

79

74

69

65

62

60

58

38

W

40

58

99

110

123

140

166

2,741

91.4

4.69

May

156

*138

111

104

97

95

83

85

81

71

62

56

52

51

40

39

38

34

30

40

38

34

32

29

12

25

43

42

39

36

34

1,825

58.9

14.1

June

*34

35

34

34

34

33

31

29

27

25

24

43

76

6Z

51

47

43

37

31

26

24

26

24

27

32

29

27

25

22

20

1,012

33.7

1.83

July

18

15

15

12

*12

13

13

11

10

9.0

8.2

7.1

6.0

5.6

5.5

5.0

5.0

4.2

4.2

4.2

4.6

4.0

2.25

1.6

1.65

1.5

1.35

1.2

1.1

1.0

.95

204.20

6.59

2.45

Avg.

0.95

.9

.85

.85

.7

.8

.8

.7

.7

.7

.7

.95

1.5

2.6

2.6

a?. 6

2.45

a 11

a!5?

a!93

*200

203

203

216

2oT

174

143

131

103

93

91

2,161.35

69.7

8.73

Sept.

105 ~95

91

86

78

*63

59

52

42

39

34

31

26

24

21

19

18

17

1215"

17

18

16

20

29

31

31

34

34

34

1,191

39.7

1.70

Ad jus

Mean 

Cfsm 

In.

52.2 

1.20 

1.39

117 

2.70 

3.00

Calendar year 1954: 

Water year 1954-55;

171 

3.94 

4.54

104 

2.40 

2.75

85.4 

1.97 

2.05

157 

3.62 

4.16

96.1 

2.21

2.47

73.0 

1.68 

1.94

Observed

Max 510 Min 4.0 Mean 105 

Max 292 Min 0.7 Mean 81.5

35.6 

0.820 

0.91

9.04 

0.208 

0.24

78.4 

1.81 

2.08

41.4 

0.954 

1.06

Adjusted

Mean 110 Cfsm 2.53 In. 34.41 

Mean 85.0 Cfsm 1.96 In. 26.59

* Discharge measurement made on this day. 

t Diversions for municipal supplies of Reading, 

;cond; records furnished by municipalities.

a No gage-height record; discharge estimate^ 

well for Aug. 19 rise, and records for station 

b Stage-discharge relation affected by ice.

Lynn, and Peabody, equivalent in cubic feet per

>n basis of weather 'ds, high-water mark In gage

Ipswich.
114 IPSWICH RIVER BASIN

Ipswich River near Ipswich, Mass.

Location.--Lat 42°39i35", long 70°53'39", on left bank 200 ft downstream from Willowdale Dam, l| miles downstream from Howlett Brook, and 4 miles upstream from Ipswich, 

Essex County.

Drainage area. 124 sq mi.

Records ayailable.--June 1930 to September 1955. Prior to October 1930, published as 

"at Willowdale."

Gage.--Water-stage recorder and concrete control. Datum of gage is 20.63 ft above mean 

sea level, datum of 1929.

Average discharge. 25 years, 196 cfs (adjusted for diversions).

Extremes.--Maximum discharge during year, 682 cfs Dec. 23, 25 (gage height, 4.85 ft); 

maximum gage height, 5.15 ft Jan. 8 (ice jam); minimum discharge, 3.8 cfs Aug. 11, 12. 

1930-55: 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 minicipal supplies of Reading, 

Lynn, Peabody, Salem, and Beverly.

Revisions.--WSP 781; Drainage area.

Rating table, water year 1954-55, except periods of ice effect (gag= 

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

2.4 

Z.5 

2.6 

2.8 

3.0

3.Z 

5.5 

8.5 

18

31

3.3 

3.6 

4.0 

4.5 

5.0

67

122

240

470

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

(t)

Oct.

*252

240

222

208

199

186

177

168

163

157

152

149

146

141

136

144

146

146

149

149

152

152

152

149

144

141

136

T56~ 132

144 

149

5,017

162

3.85

Nov.

154

*160

205

252

300

342

356

352

334

320

304

288

27Z

256

240

226

216

205

199

205

226

244

260

272

296

316

329

338

365

390

8,222

274

3.66

Dec.

40O

405

390

356

338

*312

268

260 ZeC

280

288

292

288

288

395

512

602

626

650

650

638

590

b590

554

b525

b480

437

415

437

470 

554

13,550

437

3.69

Jan.

590

602

614

?96

560

530

b415

b460

b425

b380

b355

b320

292

b250

240

233

*219

202

199

180

b!55

168

152

152

146

136

134

103 "IE?

114 

109

9,153

295

3.73

Feb.

101

94

92

87

83

81

109

122

129

144

180

244

b260

*296

292

268

260

292

312

520

320

320

320

320

320

312

304

308

_

6,290

225

3.73

Mar.

316

338

347

347

320

316

b310

b315

324

320

320

338

385

420

426

410

410

395

375

352

*329

316

365

415

448

448

454 4-48

432

400 

370

11,509

371

43.5

Apr.

342

324

304

288

280

272

264

256

252

240

230

219

208

196

186

177

166

160

157

152

149

144

146

154

*174

216

272

329

400

448

7,105

237

37.4

May

454

T37

400

365

329

316

300

288

276

260

244

226

219

205

193

180

171

160

152

144

136

129

124

122

118

114

107

101

97

963B"

6,559

212

16.9

June

97

99

99

97

94

92

88

83

81

78

75

90

112

122

129

136

139

T32

122

112

105

99

94

92

92

92

*90

85

78

69

2,973

99.1

4.69

July

-Si 59

51

51

45

47

54

5?

45

3S

3?

*27

24

25

25

22

22

20

18

16

14

14

12

13

12

11

9.7

8.5

7.8

7.2 

6.9

840.1

27.1

6.07

Aug.

6.9

6.9

6.6

6.3

6.0

5.2

5.0

4.5

4.5

4.2

4.0

T^J

7.3

22

23

*14

12

37

147

256

365

454

500

512

488

459

432

400

370

338 

308

5,208.4

168

12.2

Sept.

'560" 284

236

216

202

186

174

163

149

139

129

118

107

94

83

72

61

53

47

46

46

45

 ?s 41

63

69

70

73

*73

75

3,422

114

4.40

Adjusted for diversions

Mean 

Cfsm 

In.

166 

1.34 

1.54

278 

2.24 

2.50

Calendar year 1954 : 

Water year 1954-55 :

441 

3.56

4.10

299 

2.41 

2.78

228 

1.84 

1.92

415 

3.35 

3.86

274 

2.21 

2.47

229 

1.85 

2.12

Observed

Max 1,380 Min 15 Mean 291 

Max 650 Min 4.0 Mean 219

104 

0.839 

0.93

33.2 

0.268 

0.31

180 

1.45 

1.68

118 

0.952 

1.07

Adjusted

Mean 299 Cfem 2.41 In. 32.75 

Mean 231 Cfsm 1.86 In. 25.28

* Discharge measurement made on this day.

t Diversions for municipal supplies of Reading, Lynn, Peabody, Danvers, Salem, and Beverly, equ 

alent in cubic feet per second. Records furnished by various municipalities, 

b Stage-discharge relation affected by ice.
MYSTIC RIVER BASIN 

Aberjona River at Winchester, Mass.

115

Location.--Lab 42°26i50", long 71°08'22", on left bank at Winchester, Middlesex County, 

U.5 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 1955.

Gage. Water-stage recorder and concrete control. Datum of gage is at mean sea level, 

Saturn of 1929.

Average discharge. 16 years, 86.3 cfs.

Extremes.--Maximum discharge during year, 835 cfs Aug. 19 (gage height, 13.64 ft), from 

rating curve extended above 330 cfs by logarithmic plotting; maximum gage height, 

13.72 ft Aug. 20 (backwater from Mystic Lake); minimum discharge, 0.65 cfs Aug. 3; 

minimum daily, 0.75 cfs Aug. 1-3.

1939-55: Maximum discharge, that of Aug. 19, 1955; no flow for part of Oct. 10, 12, 

1950, caused by pumpage from gage pool; minimum daily discharge, 0.25 cfs Oct. 10, 

1950.

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

Plow affected 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- 1954-55 (gage height. In feet, 

and discharge, in cubic feet per second)

10.25

10.3

10.4

10.5

10.6

10.7

10.9

11.2

11.5

12.0

12.5

13.0

13.2

83

184

326

522

617

20

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

*ze

25

23

22

21

20

20

ie

16

19

20

20

18

16

17

29

To

22

20

17

IE

14

13

12

13

12

12- 11

19

28

31

585

18.9

-

-

Nov.

29

25

71

82

7(5

54

40

38

34

*29

25

22

21

19

18

17

17

17

22

30

44

48

40

34

53

56

50

43

58

66

1,172

39.1

-

-

Dec.

61

50

43

38

33

31

29

26

2F

36

40

38

32

32

96

110

*89

77

101

103

89

77

68

66

63

54

49

46

52

75

96

1,826

58.9

-

-

Jan.

89

80

83

79

69

63

61

57

50

46

38

42

38

34

32

31

*30

28

26

23

19

21

20

19

19

19

18

15

15

13

12

1,189

38.4

-

-

Feb.

12

11

10

TO

11

13

46

37

29

23

46

84

69

48

37

30

65

61

56

47

40

36

39

41

38

33

34

*41

_

1,047

37.4

-

-

Mar.

55

60

52

44

40

45

55

53

49

48

57

69

76

79

63

65

69

62

54

48

45

65

114

105

*93

112

107

93

77

56

61

2,071

66.8

_

-

Apr.

51

28

25

29

31

35

36

26

19

33

31

28

25

25

25

22

16

23

21

22

21

23

19

18

34

41

47

42

100

107

1,000

33.3

-

-

May

77

*5l

40

54

44

26

23

24

23

30

33

17

14

13

10

14

13

13

12

12

11

9.4

9.4

9.4

8.8

14

16

17

17

15~ 8.6

678.6

21.9

-

"

June

20

19

16

13

12

11

10

8.8

8.2

7.5

7.0

48

40

35

25

17

13

10

7.9

*7.5

7.9

8.8

8.2

13

11

13

9.4

9.4

8.6

6.9

432.1

14.4

-

~

July

6.3

7.2

6.4

5.5

5.1

5.2

5.0

4.4

4.1

29

22

16

14

12

10

alO

a9.0

a7.0

a5.5

a4.5

*4.1

3.9

3.6

3.6

3.3

2.9

2.7

2.4

1.85

.9

.8

218.25

7.04

-

"

Aug.

0.75

.75

.75

.9

.9

.9

.95

.9

.9

.9

.8

2.0

5.7

1.8

1.35

1.3

*1.0

46

494

61g

315

197

*173

141

105

74

64

62

55

49

52

2,461. 55

79.4

-

"

Sept.

504"3

33

36

32

29 25

21

18

17

16

16

14

14

12

12

11

alO

a9.0

a!6

a!4

a8.0

a2l a7.o

a38

a 30

a20

a25

a22

a2 3

643.0

21.4

-

"

Calendar year 1954 : Max 456 Min 1.0 Mean 44.4 Cfsm - In. -

Water year 1954-55 : Max 612 Min O.75 Mean 36.5 Cfsm - In. -

Peak discharge (base, 170 cfs).-- Aug. 19 (12:30 p.m.) 835 cfs (13.64 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 stations on nearby streams.
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 highway 

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 1955.

Gage.--Water-stage recorder and concrete control. Datum of gage is 89.76 ft above mean 

sea level, datum of 1929.

Average discharge.--18 years, 292 cfs (adjusted for diversions).

Extremes.--Maximum discharge during year, 3,280 cfs Aug. 23 (gage height, 9.24 ft); minimum, 26 cfs Aug. 7, 8.

1937-55: Maximum discharge, that of Aug. 23, 1955; minimum, 0.5 cfs Oct. 24, 1952. 

Flood in March 1936 reached a discharge of 3,170 cfs, by computation 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. Occasional diversion since 1951 from Sudbury River basin to Charles 

River.

Rating tables, water year 1954-55, except periods of Ice effect (gage height, In 

feet, and discharge, In cubic feet per second) 

(Shifting-control method used Aug. 19)

Oct. 1 to Aug. 18 Aug. 19 to Sept. 9 Sept. 10-30

124

1.5 

2.0 

3.0 

5.0

273

394

635

1,140

2.5 514

3.0 644

5.0 1,230

7.0 2,000

9.2 3,180

1.2 

1.5 

2.0 

2.5

192

282

414

534

Discharge, in cubic feet per second, water year October 1954 to Septe-nber 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

"534 372

300

273

245

232

218

221

221

218

224

221

215

206

204

253

243

248

243

234

224

209

204

195

189

179

173

170 T59"

240

283

7,180

232

4.46

Nov.

*308

315

420

452

476

5OO

512

509

488

452

416

370

322

298

268

245

234

229

2TT

276

3E5

418

459

497

588

581

579

574

620

*6T8

12,626

421

4.21

Dec.

612

610

596

569

538

490

b390

405

420

447

440

437

432

440

615

630

688

782

932

942

972

980 ~5bS

910

b845

b780

738

692

688

*735

760

20,476

661

4.38

Jan.

778

822

850 '835

810

785

745

b635

b720

630

581

538

504

b440

416

b390

375

324

300

b275

b235

250

229

229

221

b210

b205

182

192

176

*163

14,048

453

4.14

Feb.

153

138

b!30

bT30~

135

142

b230

312

341

356

389

519

b490

b535

579

562

*584

569

557

560

560

555

548

531

512

492

480

*473

11,562

413

4.56

Mar.

478

190

488

495

497

504

516

507

5 IE

524

562

581

610

615

625

630

615

598

576

552

531

560

645

660

712

755

775

735

700

672

*630

18,353

592

4.47j

Apr.

588

550

514

495

473

461

444

423

408

396

372

348

322

303

290

278

270

260

248

243

245

250

263

266

315

358

*399

425

492

519

11,218

374

4.73

May

533

536

52T

495

459

437

394

372

356

339

320

300

268

248

229

215

198

186

179

166

163

146

131

124

117

114

108

104

98

9S

*111

8,068

260

5.20

June

135

131

138

138

135

124

121

121

131

124

114

179

234

263

255

226

186

153

114

98

88

83

80

91

101

111

108

114

117

*101

4,117

137

4.82

July

92

83

77

69

69

71

83

107

121

164

185

138

117

98

91

88

88

77

71

66

61

54

47

52

47

42

4040-

40

40

49

2,467

79.6

4.23

Aug.

*47

42

42

42

42

31

30

30

31

34

38

54

69

63

74

77

94

322

1,450

*2,200

2,430

*2,800

*5,150

3,020

*2,660

*2,370

2,140

1,900

*1,650

*1,440

1,280

29,632

956

0.45

Sept.

1,150

1,020

916

829

750

680

621

563

514

486

443

395

348

300

270

240

225

210

198

201

2O1

204

210

234

279

303

315

329

320

*312

13,066

436

5.37

Adjusted for diversions

Mean 

Cf sm

236 

1.28 

1.48

425 

2.31 

2.58

Calendar year 1954: 

Water year 1954-55:

665

3.61 

4.17

457 

2.48 

2.87

418 

2.27 

2.36

Observec

597 

3.24 

3.74

379 

2.06 

2.30

265 

1.44 

1.66

1

Max 1,220 Min 36 Mean 397 

Max 3,130 Min 30 Mean 419

142 

0.772 

0.86

83.8 

C.455 

0.53

956 

5.20 

5.99

441 

2.40 

2.67

Adjusted

Mean 4O1 Cfsm 2.18 In. 29.62 

Mean 423 Cfsm 2.3O In. 31.21

* Discharge measurement made on this day.

t Diversions for municipal supply of Wellesley and Needham and diversion from Sudbury River basin 

to Charles River, equivalent In cubic feet per second; records furnished by municipalities and Water 

Division of Metropolitan District Commission.

b Stage-discharge relation affected by Ice.
CHARLES RIVER BASIN 117

Mother Brook at Dedham, Mass.

Location. Lat 48° 15'19", long 71°09'58", 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 1955.

Gage. Float gage read twice daily. Datum of gage is 0.03 ft below mean sea level, datum 

of 1929. Prior- to Dec. 9, 1931, water-stage recorder at same site and datum.

Average discharge. 24 years, 85.1 cfs.

Extremes. Maximum discharge during year, 970 cfs Aug. 24 (gage height, 92.90 ft, from 

graph based on gage readings); no flow June 1 to July 20.

1931-55: Maximum discharge, that of Aug. 24, 1955; no flow at times.

Remarks. Records good except those for- periods of ice effect or shifting control, which 

are fair. Mother Brook is a diversion from Charles River to Neponset River through 

Dedham and Hyde Park.

Revisions (water years). WSP 1301: 1932(Mj.

Rating tables, water year 1954-55, except periods of Ice effect or shifting 

control (gage height, In feet, and discharge, in 'cubic feet per second)

85.2

85.5

86.0

86.5

Oct. 1 to July 25

8.4 87.0

14 88.0

27 89.0

July 25 to Sept. 30

162

264

85.2

85.5

86.0

3.4

6.4

90.0

92.9

106

164

448

970

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

138

125

111

96

85

75

67

59

54

52

52

51

50

47

45

50

54

54

54

54

52

50

48

46

43

40

37

36

37

45

52

1,859

60.0

-

-

Nov.

61

64

90

106

*117

125

131

135

137

134

128

121

112

98

90

79

70

64

61

64

78

89

100

112

135

150

157

162

178

183

3,331

111

-

-

Dec.

183

182

*180

174

168

160

142

129

124

131

129

124

112

77

7O

94

26

48

58

138

162

190

201

234

22¥

206

188

172

164

168

172

4,530

146

-

-

Jan.

172

184

*197

198

196

187

188

158

160

150

130

106

89

74

57

50

45

*42

36

32

 30

28

26

26

25

24

b22

b!8

b!4

bll

b9.0

2,684.0

86.6

-

-

Feb.

b7.5

b6.0

b5.0

b5TO

b5.5

b6.5

blO

b!5

b20

28

33

61

86

*87

100

108

125

136 T3Q117

122

121

*121

120

113

109

102

104

-

_ _ _ __

2,003.5

71.6

-

-

Mar.

106

Tl?

Ill

113

114

118

127

127

124

127

135

147

156

147

148

156

163

155

148

142

*133

138

157

159

168

180

203

208

196

183

171

4,574

148

-

-

Apr.

*158

144

133

130

128

123

117

110

100

94

84

69

60

52

46

41

39

35

33

31

28

28

28

28

30

35

42

53

88

102

2,189

73.0

_

-

May

104

W

102

101

*100

97

86

77

69

57

47

41

35

29

25

22

20

18

16

16

15

14

13

12

11

10

9.0

8.0

7.0

5.0

2.5

1,270.5

41.0

_

-

June

0

0

_

-

July

5-o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*11

17

15

15

8.9

6.0

5.5

5.5

5.3

5.1

5.2

99.5

3.21

_

-

Aug.

*5.3

5.3

5.1

4.7

4.7

4.3

3.8

3.9

3.4 374

3.4

4.7

7.6

7.7

7.1

7.2

8.3

33

257

596

710

*737

*833

9i30

*958

*877

827

753

*656

580

543

9,489.9

306

_

-

Sept.

*486

439

396

354

320

*291

263

235

204

185

164

147

126

106

88

74

62

53

47

41

40

37

35

38

48

53

55

61

65

64

4,577

153

-

-

Calendar year 1954: Max 354 Mln 3.3 Mean 116 Cfsm - In.

Water year 1954-55: Max 960 Min 0 Mean 100 Cfsm - In. -

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice. 

Note. Shifting-control method used Feb. 24 to ". 17, Apr. 19 to July 25.
CHARLES RIVER BASIN

Charles River at Waltham, Mass.

Location.--Lat 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 f-om Beaver Brook.

Drainage area.--227 sq mi, excludes 23.6 sq mi drained by Stony Brook from which flow is 

diverted for 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 September 1955.

Gage. Water-stage recorder and concrete control. Datum of gage is 20.02 ft above mean 

sea level, datum of 1929. Prior to July 10, 1904, at dam 700 ft upst-eam and July 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. 24 years (1931-55), 367 cfs (adjusted for diversions, wastage, and 

leakage).

Extremes. Maximum discharge during year, 2,490 cfs Aug. 19 (gage height, 5.35 ft); minimum, 12 cfs July 22, 23; minimum daily, 14 cfs July 23.

1931-55: Maximum discharge, 2,540 cfs Mar. 19, 1936 (gage height, 4.79 ft); maximum gage height, 5.35 ft Aug. 19, 1955; minimum discharge, 0.1 cfs Oct. 1, 12, 1943; 

minimum daily, 0.2 cfs Oct. 4, 1943.

Remarks. Records excellent except those for periods of shifting-control or backwater 

from aquatic vegetation and/or debris, which are good. Plow affected by wastage from 

Stony Brook Reservoir, wastage and leakage from Norumbega Reservoir, diversion at times 

from Lake Cochituate and also at times since 1951 from Sudbury River basin, diversion 

to Mother Brook, and diversions for municipal supply of Wellesley, Ne3dham, and Dedham, all above station. No diversion during year from Lake Cochituate. Low flow 

completely regulated by Boston Edison Co. powerplant above station.

Revisions (water years). WSP 781: 1933(M). WSP 851: Drainage area. WSP 971: 1942.

Rating table, water year 1954-55, except periods of shifting control or backwater 

from aquatic vegetation and/or debris (gage height, in feet, and discharge, in 

cubic feet per second)

O.55 

.6

1.1 89

1.5 

2.0 

3.O 

5.0

191

367

895

2,460

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

(t)

Oct.

414

376

347 

249

276

276

252

229

213

206

206

206

200

197

206

245

206

203

222

235

213

194

188

176 

174

165

130

140

159

185

197

6,885

222

54.0

Nov.

210

238

359 

388

41O

414

414

419

419

*412

397

466

393

351

320

301

283

266

266

286

331

359

363

388 

491

525

540

540

628

672

11,849

395

36.1

Dec.

650

616

600

585

633

565

5O5

468

450

478

473

464

455

486

699

764

*758

856

1,020

1,090

1,090

1,060

1,040

1,010

967

908

862

824

776

862

882

22,896

739

29.2

Jan.

869

869

888 

882

862

843

818

690

788

734

694

. 655

616

*545

535

5OO

478

455

428

393

343

351

335

323 

308

301

286

266

269

255

245

16,824

543

81.3

Feb.

235

216

197 

194

191

194

266

280

301

320

371

464

428

464

482

50O

580

600

565

560

555

550

550

545 

535

510

496

*505

_

11,654

416

68.0

Mar.

525

535

525 

525

515

535

570

555

550

55O

575-

600

628

633

638

655

655

655

633

616

595

655

740

746 

*740

746

776

764

752

728

710

19,625

633

80.6

Apr.

*677 "650

606 

595

570

550

525

5OO

5OO

468

473

442

410

388

384

363

355

276

290

316

305

316

316

312 

343

367

393

424

515

570

13,199

440

37.5

May

57O

 "562

540 

530

515

515 "456"

473

442

419

397

376

355

343

32O

3O5

286

269

248

242

232

216

210

200 

191

188

182

168

159

151

179

10,269

331

22.0

June

203

185

176 

182

182

185

188

179

182

176

171

219

229

238

252

255

255

266

238

219

197

179

159

157 

146

140

*133

130

130

104

5,655

188

10.2

July

109

128

143 

118

113

107

109

104

107

125

197

2OO

I§1

176

157

143

140

128

111

123

*111

40

14

35 

55

57

55

55

55

54

52

3,309

107

14.4

Aug.

52

48

48 

48

48

44

52

54

43

40

48

122

129

62

46

64

*71

302

1,720

2,28O

 2,200

2,050

*2,210

2.550 

2,270

*2,150

2,050

1,880

1,700

1,520

1,410

27,071

875

278

Sept.

*1.290

1,150

1,020 

9O2

8O6

 758

672

491

540

525

482

446

401

576

551

512

276

252

568

141

158

168

151

162 

210

222

229

255

262

266

13 , 602

455

142

Adjusted for diversions, wastage, and leakage

Mean 

Cfsm 

In.

276 

1.22 

1.40

55E 

1.5£

1.7£

Calendar year 1954: 

Water year 1954-55:

709 

3.12 

5.60

624

2.75 

5.17

484 

2.15 

2.22

714 

5.15 

5.62

477 

2.10

2.35

555 

1.56 

1.79

Observed

Max 1,160 Min 37 Mean 391 

Max 2,550 Min 14 Mean 446

199 

0.877 

0.98

121

C.533 

0.62

1,151 

5.07 

5.85

595 

2.62 

2.95

Adj-isted

Mean 475 Cfs-n 2.O9 in. 28.57 

Mean 506 Cfsm 2.23 in . 30.29

* Discharge measurement made on this day.

t Diversion to Mother Brook, diversions for municipal supply of Wellesley, Needham, and Dedham, 

wastage from Stony Brook Reservoir, wastage and leakage from Norumbega Reservoir, and diversion from 

Sudbury River basin to Cnarles River, equivalent in cubic feet per second. Records furnished by 

Water Division of Metropolitan District Commission and by municipalities.

Note. Backwater from aquatic vegetation and/or debris Oct. 1 to Nov. 24, Jan. 19, 20, 22-27, 

Feb. 7-28, Apr. 2 to Sept. 50. Shifting-control method used Mar. 2 to Sept. 30.
NEPONSET RIVER BASIN 119

Neponset River at Norwood, Mass.

Location. Lat 42°10 I 39", long 71 "12'05", 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.--October 1939 to September 1955. October 1939 monthly discharge only, 

published in WSP 1301.

Gage. Water-stage recorder. Datum of gage is 44.04 ft above mean sea level, unadjusted. 

Average discharge. 16 years, 48.0 cfs.

Extremes.--Maximum discharge during year, 1,490 cfs Aug. 19 (gage height, 14.65 ft, from 

floodmarks); minimum daily, 8.3 cfs May 30, July 31.

1939-55: Maximum discharge, that of Aug. 19, 1955; minimum daily, 2.3 cfs Oct. 23, 

1949.

Flood of July 24, 1938, reached a stage of 11.05 ft, from floodmarks.

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

which are fair. Plow regulated by mills and reservoirs above station. Several diversions above station for municipal and industrial use.

Rating table, water year 1954-55 (gage height. In feet, and discharge,

in cubic feet per second) 

(Backwater from debris Aug. 29 to Sept. 30)

6.75

6.8

7.1

7.5

8.0

9.0

105

188

10.0

11.0

12.0

14.0

14.5

289

432

630

1,230

1,430

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23 

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

34

37

37

33

30

33

*34

*32

31

38

44

41

35

40

53

47

41

46 

38

41

39

37

36 

35

35

30

*30

29

52

59

.65

1,212

39.1

-

"

Nov.

65

61

109

102

87

73

65

61

44

48

46

42

57

48

42

43

35

34

38

72

63

80

73 

70

89

98

78

56

107

112

1,998

66.6

-

"

Dec.

102

88

76

66

63

61

56

53

855

a80

876

872

870

*80

174

177

141

151 

196

186

166

150

132

127

126

115

94

100

122

160

175

3,490

113

-

T

Jan.

157

152

*154

142

127

120

120

108

98

93

71

75

67

61

52

55

54

49 

47

46

a45

a43

a42 

a50

a 48

a45

a42

a40

a35

a30

25

2,293

74.0

-

"

Feb.

24

23

21

19

19

21

62

74

63

52

71

"162 190

*117

*92

79

110

131 

120

110

97

93

94

96

83

74

75

86

-

2,258

80.6

-

"

Mar.

102

109

106

102

90

96

118

113

108

dllO

d!25

d!30

d!20

d!05

d95

dlOO

d!05

d95 

d85

d.80

*82

114

m148

129

138

129

113

100

92

3,479

112

-

"

Apr.

86

76

78

94

92

89

90

80

70

64

57

56

54

51

46

42

45

40 

52

53

40

52

48 

60

74

84

93

89

112

122

2,089

69.6

-

"

May

112

94

80

72

*67

89

71

46

*67

63

58

48

46

34

34

36

38

30

27

24

27

23

17 

19

25

16

22

19

25

8.3

16

1,353.3

43.7

-

"

June

18

*18

18

15

16

18

19

17

16

16

15

61

54

46

38

28

16

29 

15

23

16

18

14 

19

17

18

*13

14

14

14

653

21.8

-

"

July

15

19

31

22

22

18

20

17

18

19

27

20

19

18

18

16

18

*16 

16

16

17

16

14 

13

17

16

16

16

15

12

8.3

545.3

17.6

-

~

Aug.

12

13

13

12

11

12

14

15

18

28

15

50

21

26

21

17

19

216 

1,160

*1.260

a884

*576

536 

a424

a339

285

259

a229

183

164

160

6,992

226

-

"

Sept.

150

140

a!34

a!30

a!26

104

92

87

79

a74

a70

67

54

50

46

46

45

a44 

40

.35

35

43

42 

70

a88

74

72

74

65

57

2,233

74.4

-

"

Calendar year 1954: Max 336 Min 5.0 Mean 70.6 Cfsm - In. -

Water year 1954-55: Max 1,260 Min 8.3 Mean 78.3 Cfsm - In. -

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stage 

when available, appearance of recorder graph for adjacent days, engineer's notes, and records for 

East Branch Neponset River at Canton and Wading River near Norton.

d Doubtful gage-height record; discharge computed on basis of reconstructed gage-height graph 

based on recorded graph, weather records, and records for stations mentioned above.
NEPONSET RIVER BASIN

East Branch Neponset River at Canton, Mass.

Location.--Lat 42°09'16", long 71°08'47", on right bank 100 ft downstream from Washington 

Street Bridge at Canton, Norfolk County, 200 ft downstream from Forge Pond Dam, and 

900 ft downstream from Massapoag Brook.

Drainage area. 26.7 sq mi.

Records available.--October 1952 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 85 ft (from topographic map).

Extremes. Maximum discharge during year, 1,790 cfs Aug. 19 (gage height, 8.18 ft), from 

rating curve extended above 690 cfs by logarithmic plotting; minimum daily, 2.1 cfs 

Aug. 7.

1952-55: Maximum discharge, that of Aug. 19, 1955; minimum daily, that of Aug. 7, 

1955.

Remarks. Records good. Plow regulated by ponds above station.

Rating tables, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Aug. 19 Aug. 20 to Sept. 30

0.65

.9 

1.0 

1.2 

1.5 

2.0

2.1

3.1

6.1

14

33

77

2.5 

3.0 

4.0 

6.0 

8.0

135

212

410

965

1,720

1.4 

2.0 

3.0 

4.0 

6.0 

7.0

36

93

226

410

965

1,320

ubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

43

40

39

38

37

36

35

34

30

30

30

32

32

31

50

37

38

38

36

34

34

30

17

14

16

20

*22

23

31 

83

84

1,094

35.3

1.32

1.52

Nov.

36

24

~ri 131

73

69

63

59

56

53

50

48

47

45

44

41

27

"39 23

44

75

69

59

44

58

41

48

58

66 

89

1,651

55.0

2.06

2.30

Dec.

76

67

*63

58

.29

37

47

47

47

72

77

63

57

57

40

148

110

77

172

150

123

71

104

105

105

95

89

94

115 

150

150

2,695

86.9

3.25

3.75

Jan.

123

114

*96

106

98

92

95

84

82

77

73

68

66

62

58

53

51

47

45

44

31

22

32

42

44

40

39

37

35 

32

32

1,920

61.9

2.32

2.67

Feb.

30

29

28

28

28

28

76

82

53

44

59

221

141

81

*73

69

100

123

111

97

79

98

96

94

86

79

78

85

-

2,196

78.4

2.94

3.06

Mar.

90

99

87

80

75

80

104

95

83

87

100

100

92

85

80

82

87

80

75

72

69

89

156

123

102

96

102

92

87

78

2,809

90.6

3.39

3.91

Apr.

75

71

68

83

83

73

69

64

58

53

51

49

48

47

47

47

44

43

41

42

41

43

44

44

62

86

*84

75

103 

104

1,842

61.4

2.30

2.57

May

85

74

68

64

63

67

63

63

64

58

52

49

47

46

44

42

39

37

34

32

30

29

25

26

24

24

24

23

22 

23

20

1,361

43.9

1.64

1.90

June

19

*18

18

17

17

17

18

17

16

*16

15

38

56

39

30

23

17

15

14

15

18

18

16

16

17

16

15

14

13

IS

590

19.7

0.738

0.82

jLly

12

4.8

7.8

8.3

7.2

8.7

8.3

9.8

9.8

9.1

9.4

6.1

5.5

5.5

5.2

4.3

3.7

*3.4

7.5

8.3

8.0

7.0

4.0

3.8

7.2

8.7

8.7

8.3

8.0 

4.4

2.7

215.5

6.95

C.260

0.30

Aug.

7.0

8.0

7.8

8.0

8.0

3.8

2.1

TT?

9.8

9.8

10

9.3

6.8

8.8

11

9.3

28

207

1.560

*973

487

434

*460

463

343

284

282

273

224 

192

165

6,302.8

203

7.60

8.78

Sept.

160

151

135

124

112

103

78

63

62

61

59

56

71

63

58

54

49

47

55

71

67

44

36

42

91

66

49

52

55 

45

2,179

72.6

2.72

3.04

Calendar year 1954: Max 290 Min 7.0 Mean 61.2 cfsm 2.29 ir . 31.07

Water year 1954-55: Max 1,360 Min 2.1 Mean 68.1 cfsm 2.55 Ir. 34.62

Discharge measurement made on this day.
WESTPORT RIVER BASIN 121

Adamsville Brook at Adamsville, R. I.

Location. Lat 41°33'30", long 71°07'47", on right bank 0.2 mile upstream from milldam 

at Adamsville, Newport County, and 0.7 mile upstream from mouth.

Drainage area. 8.6 sq ml, approximately.

Records available. October 1940 to September 1955.

Gage. Water-stage recorder. Concrete control since Sept. 16, 1942. Altitude of gage 

is 15 ft (from topographic map).

Average discharge. 15 years, 13.3 cfs.

Extremes. Maximum discharge during year, 97 cfs Aug. 20 (gage height, 4.46 ft); minimum, 

0.26 cfs Aug. 6, 7.

1940-55: Maximum discharge, 269 cfs Sept. 12, 1954 (gage height, 5.80 ft), from 

rating curve extended above 210 cfs; minimum, 0.03 cfs Sept. 23, 24, Oct. 3, 4, 1950.

Remarks.--Records good.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

3.06

3.10

3.15

3.2

3.3

0.24

.47

.98

1.75

4.1

3.4

3.5 

3.7 

4.0 

4.5

7.7

12

25

48

101

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

8.7

8.5

8.1

8.1

7.9

7.7

7.5

7.3

6.9

6.9

6.9

6.7

6.7

6.5

6.1

12

14

13

11

9.8

8.9

8.1

7.5

7.3

6.9

6.7

6.7 

8.1

11

22

25

288.5

9.31

1.08

1.25

Nov.

22

18

42

55

42

*30

21

17

15

13

11

11

10

9.6

9.3

8.9

8.9

8/7

10

15

20

20

18

15

20

23

22 

21

34

41

611.4

20.4

2.37

2.64

Dec.

33

23

18

*15

*13

12

11

10

13

36

42

31

22

21

70

70

43

35

73

62

42

31

27

30

31

25

23 

23

30

52

70

1,037

33.5

3.90

4.48

Jan.

48

37

39

34

27

24

*27

24

20

18

16

15

14

13

11

11

9.8

9.6

8.9

7.9

7.7

7.3

7.7

7.5

7.5

7.5

7.3 

6.9

5.8

5 2

lie

489.2

15.8

1.84

2.12

Feb.

4.2

4.6

4.9

5.2

4.7

5.4

27

35

26

18

23

55

44

27

17

14

23

44

41

30

*25

22

21

20

18

16

16 

18

-

609.0

21.8

2.53

2.63

Mar.

23

30

26

29

38

38

54

42

30

25

21

18

18

18

17

17

17

16

15

14

13

22

53

46

31

24

24 

*21

18

16

14

788

25.4

2.95

3.41

Apr.

13

12

12

17

21

21

21

18

16

14

12

11

11

11

13

12

12

11

11

11

11

10

10

10

15

*21

25 

23

39

40

484

16.1

1.87

2.09

May

28

20

16

13

12

12

11

12

14

14

12

10

9.1

8.7

8.1

7.7

8.1

8.1

7.7

7.1

6.5

5.8

5.4

5.2

5.0

4.7

4.4 

4.0

3.8

3.6

4.2

291.2

9.39

1.09

1.26

June

4.2

3.8

3.6

3.6

*3.4

3.2

3.1

3.0

3.0

2.9

2.6

3.0

2.9

2.6

2.45

2.25

2.25

2.05

1.85

2.6

2.9

2.6

2.45

*2.9

4.2

6.1

fci 3.6

2.8

97.10

3.24

0.377

0.42

July

2.35

2.05

1.75

1.5

1.35

6.2

42

44

22

9.9

6.3

4.2

3.1

2.6

2.25

2.15

2.05

1.85

1.6

1.35

1.20

.98

.85

.85

.85

.74

lit

1.25

.98

*.80

170.94

5.51

0.641

0.74

Aig.

0.69

.55

.47

.37

.32

.26

.26

4.0

4.4

3.6

3.5

45

76

43

21

11

7.5

1".

61

.8JS

48

24

15

15

*14

10

8.7 

8.1

6.7

5 9

s!4

545.72

17.6

2.05

2.36

Sept.

12

16

15

11

8.1

7.1

5.9

4.9

4.2

4.0

3.6

3.5

3.1

3.0

2.8

2.6

2.45

2.25

376~ 2.05

2.8

2.6

2.35

4'. 2

16

26

16 

16

18

15

235.50

7.85

0.913

1.02

Calendar year 1954: Max 224 Min 0.24 Mean 17.5 cfsm 2.03 in . 27.56

Waber year 1954-55: Max 88 Min 0.26 Mean 15.5 Cfsm 1.80 In. 24.42

Peak discharge (base, 120 efs). No peak above base. 

* Discharge measurement made on this day.
TAUNTON RIVER BASIN 

Taunton River at State Farm, Mass.

Location. Lat 41°56'05", long 70°57'18", on right bank at State Farm, Plymouth County, 

mile upstream ream from from Saw Saw Mill Mill Brook Brook and and 3-| 3-| miles northwest of Middleboro.

Drainage area. 260 sq mi. 

Records available. October 1929 to September 1955.

Gage. Water-stage recorder. Datum of gage is 9.61 ft above mean sea le''el, datum of 

1929. Prior to Oct. 1, 1931, inverted staff gage at site 40 ft downstream with zero 

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. 26 years, 462 cfs (adjusted for diversions).

Extremes . Maximum discharge during year, 4,010 cfs Aug. 21 (gage height, 13.02 ft); minimum, 32 cfs July 19; minimum daily, 35 cfs July 19.

1929-55: Maximum discharge, that of Aug. 21, 1955; minimum, 8 cfs Sept. 10, 1944; 

minimum daily, 9 cfs Sept. 9-12, 1944.

Remarks. Records excellent. Water diverted above station from Nemasket River for municipal 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) . WSP 756: Drainage area. WSP 781: 1934. WSP 1051: 1933. 

WSP 1201: 1931. WSP 1301: 1930(M) , 1933(M) , 193S(M) .

Rating tables, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

3.2 

3.4 

3.6

Oct. 1 to Aug. 22

51 4.0

58 8.0

97 15 .-0

Aug. 23 to Sept. 30

216

2,060

4,000

3.7

4.0

8.0

12.0

144

238

2,060

3,660

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

255

285

281

281

274

289

266

220

193

203

213

216

213

216

251

262

270

314

326

326

274

230

226

226 

206

177

180

247

347 

398

500

8,165

263

26.2

Nov.

528

518

955

1,480

*1.510

1,310

1,050

855

725

630

555

510

456

428

415

385

368

359

359

411

514

570

550

518 

555

595

565

546

635

19,635

654

24.1

Dec.

750

705

625

*550

505

474

420

415

424

665

810

750

680

655

1,270

1,590

1,560

1,420

1,690

1.800

1,680

1,470

1,220

1,140 

1,080

960

870

820

920

1,260

1,630

30,808

994

24.9

Jan.

1,640

1,500

1,420

1,320

1,170

1,040

*985

810

795

7SO

710

655

615

532

570

541

496

469

456

411

330

326

301

301 

330

359

351

301

305

285

20,397

658

25.4

Fe_b.

270

244

240

240

259

266

482

730

670

585

610

1,140

1.280

1,080

895

*765

800

1,160

1,160

1,070

995

950

925

910 

865

790

740

805

-

20,926

747

26.5

Mar.

865

970

950

880

840

825

1,060

1,120

1,010

980

1,040

1,070

1,030

965

870

825

840

785

735

695

655

730

1,220

1.590 

*1,310

1,160

1,060

965

850 

770

700

29,165

941

26.8

Apr.

645

600

595

780

960

930

880

810

720

650

615

590

541

505

492

487

460

442

394

411

415

420

411

394 

469

720

830

860

*1,090

JL440

19,556

652

26.9

May

1.430

1,200

955

745

625

610

585

546

615

625

575

523

482

460

438

406

394

381

355

347

318

355

326

314 

301

285

270

248

237 

223

r>rtc

££D

15,400

497

27.3

June

230

203

*200

186

174

168

164

164

177

158

140

186

*314

297

255

216

200

161

138

138

140

138

138

129 

125

129

146

174

146 

li-9

5,261

175

30.1

July

164

206

91

89

196

126

164

132

113

100

145

155

143

113

89

50

39

36

35

*56

41

49

46

49 

84

76

67

65

65 

60

48

2,972

95.9

28.2

Aug.

49

44

38

54

69

71

65

93

97

S6

67

97

206

180

143

126

105

250

1,650

3,360

5.970

*3,820

5,480

5,070 

2,650

2,200

1,720

1,440

1,290

1,100

936

52,506

1,049

55.4

Sept.

810

750

680

605

550

473

414

347

521

287

266

254

250

209

171

177

168

165

177

216

216

196

185

186 

596

401

370

401

432 

596

10,425

548

50.5

Adjus

Mean 

Cfsm 

In.

290 

1.12 

1.28

679 

2.61 

2.91

Calendar year 1954: 

Water year 1954-55:

1,019 

5.92 

4.52

683 

2.65 

3.03

774 

2.98 

3.10

968 

5.72 

4.29

679 

2.61 

2.91

524 

2.02 

2.52

Observed

Max 2,970 Mln 56 Mean 590 

Max 5,970 Mln 35 Mean 590

205 

0.788 

0.88

124 

0.477 

0.55

1,082 

4.16 

4.80

578 

1.45 

1.62

Adjusted

Mean 615 Cfsi) 2.57 In. 52.11 

Mean 617 Cfsm 2.37 In. 32.21

* Discharge measurement made on this day.

t Diversions from Nemasket River for municipal supply of Taunton and New Bedford, and from Silver 

Lake Into Taunton River 'basin for municipal supply of Brockton and several towns, equivalent In 

cubic feet per second. Records furnished by various municipalities.
TAUNTON RIVER BASIN ld6 

Wading River at West Mansfield, Mass.

Location. Lat 42°00'00", long 71°15'38", on right bank 200 ft downstream from Balcolm 

Street Bridge at West Mansfield, Bristol County, 2 miles upstream from Hodges Brook, 

and 3 miles southwest of Mansfield .

Drainage area. 19.2 sq mi.

Records available. October 1953 to September 1955.

Gage..--Water-stage recorder and concrete control. Datum of gage is 120.85 ft above mean 

sea level, datum of 1929.

Extremes. Maximum discharge during year, 519 cfs Aug. 20 (gage height, 6.22 ft); minimum daily, 2.6 cfs Aug. 4.

1953-55: Maximum discharge, that of Aug. 20, 1955; minimum daily, 2.3 cfa Oct. 16, 

17, 1953

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

Flow regulated by Lake Mirimichi. Diversion above station for municipal supply of 

Attleboro.

Rating tables, water year 1954-55 (gage height, In feet, and discharge, In

cubic feet per second) 

(Stage-discharge relation affected by Ice Jan. 21, Feb. 13, 14)

Oct. 1 to Dec. 15

3.1 14

3.5 26

4.0 45

4.5 75

Dec. 16 to Aug. 20 Aug. 21 to Sept. 30

2.5

2.6

2.7

2.8 

3.0 

3.5

1.9 

3.0 

4.5 

6.7

4.0 

4.5 

5.0 

5.5 

6.2

156

263

510

3.1

3.5 

4.0 

4.5 

5.0 

5.5 

6.1

17

118

191

292

470

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

23

23

22

22

22

21

21

18

17

18

18

18

18

17

I6.

20

28

28

24

22

20

19

18

18

17

18

*17

16

21

31

38

649

20.9

1.45

Nov.

37

36

50

60

58

54

48

45

45

42

39

35

31

28

25

22

23

26

29

35

40

50

47

45

50

50

45

43

50

54

1,242

41.4

1.02

Dec.

52

50

48

43

40

39

*38

38

37

T7

50

48

45

46

75

*86

83

86

100

102

98

99

90

83

78

72

67

65

67

80

90

2,042

65.9

1.01

Jan.

8886"

88

83

78

74

72

65

60

58

54

50

48

*45

44

41

37

36

33

32

31

29

28

28

28

28

29

26

24

22

21

1,466

47.3

1.00

Feb.

20

20

20

19

15

18

37

44

40

36

45

82

W

70

66

*63

70

82

76

73

68

63

60

58

56

52

50

52

_

1,438

51.4

1.03

Mar.

54

56

54

B~4 53

57

66

66

62

62

65

66

64

66

64

64

66

66

64

58

53

62

88

92

*91

87

82

70

62

60

59

2,033

65.6

1.03

Apr.

52

50

49

50

50

47

46

46

43

40

38

36

35

34

34

34

32

32

32

28

24

23

24

25

30

*37

42

45

58

64

1,180

39.3

1.03

May

62

52

46

45

37

38

38

37

37

36

35

36

32

30

28

26

25

24

23

22

20

19

17

17

16

15

15

15

14

T4

14

885

28.5

1.03

June

14

*15

14

13

13

13

14

13

12

11

11

16

23

26

24

22

21

18

16

15

13

13

12

12

11

11

*11

11

9.B

9.5

437.3

14.6

1.02

July

8.1

7.3

8.1

7.3

8.6

14

28

33

26

24

23

21

17

14

12

9.8

7.1

4.0

3.5

4.2

*3.8

3.6

3.4

3.8

4.5

4.0

3.8

4.0

4.3

3.8

3.2

322.2

10.4

1.06

Aug.

3.1

3.1

2.8

2.6

275

2.8

3.0

3.5

3.1

2.8

2.8

5.7

8.9

7.5

5.7

4.7

4.4

16

182

*iZJ>

450

*335

244

*200

166

135

111

95

83

72

65

2,698.3

87. 0

1.38

Sept.

63

59

54

48

45

44

42

40

36

33

31

30

28

26

24

24

22

22

22

24

29

26

56" 21

40

41

36

37

40

39

1,052

35.1

1.38

Adjusted for diversion

Mean

Cfsm

In.

22.4

1.17

1.34

42.4

2.21

2.47

Calendar year 1954 : 

Water year 1954-55 :

66.9

3.48

4.02

48.3

2.52

2.90

52.4

2.73

2.84

66.6

3.47

4.00

40.4

2.10

2.35

29.6

1.54

1.78

Observed

Max 186 Mln 3.7 Mean 43.0 

Max 475 Min 2.6 Mean 42.3

15.6

0.812

0.91

11.5

0.599

0.69

88.4

4 .60

5.31

36.4

1.9O

2.12

Adjusted

Mean 44.1 Cfsm 2.30 In. 31.20 

Mean 43.4 Cfsm 2.26 In. 30.73

* Discharge measurement made on this day.

t Diversion for municipal supply of Attleboro, equivalent In cubic feeb per second. Records furnished by city of Attleboro.

Note. No gage-height record Nov. 1 to Dec. 6, Feb. 14-16; discharge estimated on basis of 1 dlschalrge measurement, weather records, recorded range In stage, and records for station near Norton.
TAUNTON RIVER BASIN

Wading River near Norton, Mass.

Location. --La t 41 "56 '51", long 71 "10 '38", on left bank 200 ft downstream from bridge on 

State Highway 140, 0.9 mile upstream from confluence with Rumford Rivsr, and 1-| miles 

southeast of Norton, Bristol County.

Dra inage area .--42.4 sq mi.

Gage . - -Water-stage recorder. Datum of gage is 49.63 ft above mean sea level, datum of 

]T929. Prior to Oct. 1, 1930, staff gage at same site at datum 0.62 ft higher. Oct. 

1930, to May 4, 1933, staff gage at present site and datum.

Records available .--June 1925 to September 1955.

Average discharge .--30 years, 71.1 cfs (adjusted for diversion).

Extremes . --Maximum discharge during year, 1,170 cfs Aug. 20 (gage height, 10.98 ft); 

minimum, 5.6 cfs Aug. 9; minimum daily, 6.0 cfs Aug. 10, 11.

1925-55: Maximum discharge , that of Aug. 20, 1955; minimum, 0.3 cfs Sept. 10, 

1926.

Remarks .--Records excellent. Flow regulated by powerplants and ponds above station. 

Diversion above station for municipal supply of Attleboro.

Revisions (water years J.--WSP 871: 1938. WSP1301: 1929-33(M) .

Rating tables, water year 1954-55 (gage height, in feet, and discJarge, 

in cubic feet per second)

Oct. 1 to Aug. 2O Aug. 21 to Sept. 3C

4.7 4.7

4.9 9.6

5.2 22

5.5 41

6.0 85

7.0 197

8.0 344

9.0 554

11.0 1,180

5.2 

5.5

82

197

Note. Same as preceding. 

table above 7.0 ft.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

59

42

40

58

40

50

42

48

40

35

35

46

40

38

51

54

33

31

Ts

45

43

45

35

31

42

41

38

51

63

72

82

1,418

45.7

1.45

Nov.

*81

78

116

138

134

109

95

88

88

85

78

67

65

55

&4

58

54

55

58

72

95

112

105

95

106

107

100

92

107

*128

2,675

89.2

1.02

Dec.

123

105

96

85

81

72

72

75

73

108

100

92

95

88

196

220

185

174

259

283

247

210

200

184

175

150

146

139

150

*197

224

4,604

149

1.01

Jan.

202

183

190

180

162

150

140

120

110

125

99

94

100

78

80

77

74

68

69

65

55

58

50

57

54

51

54

46

47

38

*40

2,916

94.1

1.00

Feb.

40

37

37

36

34

31

84

90

92

80

93

241 "250

155

131

119

14S

198

193

160

153

142

135

129

123

110

101

*114

_

3,204

114

1.03

Mar.

125

138

128

120

118

122

177

167

154

149

151

155

142

131

134

132

136

125

114

103

106

132

255

238

207

178

180

166

137

123

*125

4,568

147

1.03

Apr.

109

101

91

108

109

108

102

91

84

80

80

73

72

71

72

65

60

62

61

66

58

54

54

51

79

99

*107

102

155

167

2,591

86.4

1.03

May

146 T2"§

104

99

90

97

89

90

103

90

83

76

78

68

51

61

62

59

55

44

37

32

37

37

35

27

29

27

23

21

*24

2,003

64.6

1.03

June

26

29

28

24

24

22

24

28

26

26

22

38

70

49

41

45

37

31

28

25

37

33

21

27

22

23

22

24

26

*21

899

30.0

1.02

July

18

19

16

14

14

16

44

 51 51

37

49

30

14

20

19

17

14

15

15

20

15

14

13

12

T3

13

13

13

13

13

12

637

20.5

1.06

Aug.

*12

8.2

8.5

8.2

9.1

13

12

8.8

6.2

6.0

6.0

9.6

19

23

19

15

14

22

422

*1,070

839

*616

498

429

327

248

187

171

141

*132

120

5,419.6

175

1.38

Sept.

120

TT5

100

92

84

87

82

74

65

52

51

54

53

47

44

42

36

33

31

41

58

38

40

46

90

107

82

82

85

*81

2,012

67.1

1.38

Adjusted for diversion

Mean 

Cfsm

47.2 

1.11 

1.28

9O.2 

2.13 

2.37

Calendar year 1954 : 

Water year 1954-55 :

150

3.54 

4.07

95.1 

2.24 

2.58

115 

2.71 

2.84

148 

3.49 

4.03

87.4

2.06 

2.30

65.6 

1.55 

1.78

Observed

Max 672 Min 7.7 Mean 93.3 

Max 1,070 Min 6.0 Mean 90.3

31.0 

0.731 

0.82

21.6 

C.509 

0.59

176 

4.15 

4.79

68.4 

1.61 

1.80

Adjusted

Mean 94.5 Cfsm 2.23 In. 30.23 

Mean 91.4 Cfsm 2.16 In. 29.25

ik discharge (base, 280 efs). Dee. 20 (3 to 4 p.m.) 309 cfs (7.79 ft); Feb. 12 (3 to 4 

:fs (7.64 fb); Mar. 23 (5 to 6 p.m.) 292 cfs (7.68 ft); Aug. 20 (6 to 8 a.m.) 1.17O cfs 

18 ft).

286 .

(10.98 

* Discharge measurement made on this day 

t Diversion for municipal supply of Attl

furnished by city of Attleboro.

equivalent in cubic feet per second. Records
PROVIDENCE RIVER BASIN 125

Kettle Brook at Worcester, Mass.

Location.--Lat 42°13'55", long 71°50'07", on right bank 75 ft downstream from Webster 

Street Bridge at Worcester County, 1 mile upstream from Beaver Brook.

Drainage area.--31.3 sq mi.

Records available.--August 1923 to September 1955. Prior to October 1950, published as 

Blackstone River at Worcester

Gage.--Water-stage recorder. Concrete control since Oct. 28, 1937. Datum of gage is 

472.86 ft above mean sea level, datum of 1929.

Average discharge. 32 years, 52.7 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 3,970 cfs A.U . 19 (gage height, 12.78 ft, from 

floodmark), from rating curve extended above 1,700 cfs on basis of computation of peak 

flow over dam; minimum, 5.2 cfs Oct. 13.

1923-55: Maximum discharge, that of Aug. 19, 1955; minimum, 0.2 cfs May 17, 1940.

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

fair. City of Worcester diverts flow from about 7.0 sq mi of drainage area above 

station. Flow regulated by reservoirs above station.

Revisions (water years).--WSF 1301: 1927(M).

Rating tables, water year 1954-55 (gage height. In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Aug. 19

6.8 

9.4

Aug. 20 to Sept. 30

3.2 

Discharge :

155

305

695

1,140

2 , 000

2,860

3.0

3.1 

3.3

3.6 

4.0

12

20

43

85

170

4.5 

5.0 

6.0

8.0

330

530

1,040

2,000

cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

total

Mean

(t)

Oct.

52

42

34

32

38

39

38

38

27

24

45

63

25

8.1

42

119

107

66

64

57

46

27

17

21

*25

30

30

28

41

84

79

1,388.1

44.8

7.27

Nov.

64

58

130

210

145

116

128

123

79

66

63

49

23

34

45

45

46

45

44

54

131

152

118

107

135

145

128

116

145

180

2,924

97.5

9.46

Dec.

145

118

101

83

83

83

83

81

60

*49

51

52

52

64

280

228

148

155

395

5eT

183

140

121

132

123

 05

76

71

96

150

186

3,955

128

10.0

Jan.

148

135

168

148

128

118

116

101

84

60

*52

51

51

49

48

46

45

23

12

T?

14

15

16

17

19

21

21

19

18

17

16

1,788

57.7

9.77

Feb.

17

17

17

16

16

18

101

67

38

31

43

107

69

47

42

38

50

58

52

40

36

*34

45

62

52

46

46

58

_

1,263

45.1

7.57

Mar.

74

96

76

66

_60

66

84

71

64

69

109

168

148

118

99

101

125

103

81

74

71

108

198

*168

142

130

135

118

105

96

92

3,215

104

5.99

Apr.

86

83

76

31

86

81

94

81

71

54

48

45

42

40

34

40

38

36

34

34

31

*3TT

42

42

77

125

204

TT2

178

186

2,267

75.6

5.60

May

152

123

101

84

71

90

76

62

56

49

40

38

34

31

29

26

26

24

25

22

20

19

19

*18

18

17

16

15

13

14

18

1,346

43.4

9.34

June

21

19

18

19

19

17

15

14

14

14

13

22

25 *2~1

17

15

13

11

11

13

14

16

14

18

23

18

15

1£

11

10

482

16.1

7.69

July

9.4

12

17

13

12

13

15

13

11

8.9

8.1

7.8

7.6

7.3

7.1

8.6

16

17

16

15

14

10

8.4

7.8

8.9

*12

14

14

12

8.9

7.6

352.4

11.4

6.97

Aug.

7.3

7 . 3

7.3

7.8

8.4

9.4

12

17

14

11

12

15

63

72

38

23

48

256

*2,720

*0£80

842

463

3.380

a29n3

233

*123

122

123

110

10i3

122

7,967.5

257

7.07

Sept.

91

92

52

36

36

*44

52

44

39

56

47

24

26

26

26

26

24

24

42

40

32

20

16

31

51

41

30

39

39

33

1,179

39.3

6.56

Adjusted for diversion

Mean 

Cfsm 

In.

52.0 

1.66 

1.92

107 

3.42 

3.81

Calendar year 1954 : 

Water year 1954-55 :

138 

4.41

5.07

67.4 

2.15 

2.48

52.7 

1.68 

1.75

110 

3.51 

4.04

81.2 

2.59 

2.89

52.8 

1.69 

1.94

Observed

Max 1,100 Hln 5.6 Mean 66.0 

Max 2,720 Hin 7.1 Mean 77.1

Peak discharge (base, 250 cfs). --De

439 cfs (4.36 ft); Aug. 19 (12 m. ) 3,

23.8 

0.760

0.85

18.3 

0.585

0.68

264 

8.43

9.73

45.9 

1.47 

1.63

Adjusted

Mean 74.1 Cfsm 2.37 in. 32.12 

Mean 84.8 Cfsm 2.71 In. 36.79

c. 15 (3 to 4 p.m.) 344 cfs (4.11 ft); Dec. 19 ( 1O to 11 a.m.) 

970 cfs (12.78 ft) .

nlshed by city of Worcester.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stage, 

and records for Blackstone River at Northbrldge. .

Mote.--Discharge in cubic feet per second per square mile and runoff in inches may not represent 

natural flow because of regulation.
126 PROVIDENCE RIVER BASIN

Quinsigamond River at North Grafton, Mass.

Location. Lat 42°13'49", long 71°42'41", on right bank 800 ft downstream from dam at 

outlet of Flint Pond at North Grafton, Worcester County, and 0.3 mile upstream from 

Bummet Brook.

Drainage area. 25.5 sq mi.

Records available. October 1939 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 335 ft (from topographic map). Prior 

£o Dec. 7, 1939, staff gage at same site and datum.

Average discharge. 16 years, 40.6 cfs.

Extremes.--Maximum discharge during year, 820 cfs Aug. 20 {gage height, 5.15 ft); minimum daily, 3.4 cfs Aug. 6.

1939-55: Maximum discharge, that of Aug. 20, 1955; minimum daily, 0.3 cfs 

Oct. 14-17, 1942.

Remarks.--Records excellent except those for periods of shifting control, which are good, 

and those for periods of no gage-height record, which are fair. Some regulation by 

Lake Quinsigamond and ponds above station.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

1.4 

1.7 

2.0 79

2.5 

3.0 

3.5 

4.0

5.0

5.1

150 

240 

334 

444 

760 

8OO

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

I

3

4

5

6

7

8

9

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.

106

~88 114

48

15

13

15

15

14

16

5.5

20

56

50

44

70

64

58

52

47

43

38

35

31

28

25

23

40

*39

42

39

1,293.5

41.7

1.64

1.89

Nov.

35

46

84

91

103

100

91

158

179 TJ?

117

95

74

64

54

43

44

9.8

ir~ 4.6

28

30

46

59

77

68

77

79

89

74

2,173.4

72.4

2.84

3.17

Dec.

78

149

182

143

130

*96

13

T7

27

38

43

42

38

43

80

79

71

84

157

159

157

131

147

120

107

98

92

110

142

101

2,957

95.4

3.74

4.31

Jan.

104

110

112

118

til

104

92

80

77

71

*81

90

86

81

69

64

60

59

56

54

49

46

46

43

43

42

42

36

34

33

52

2,125

68.5

2.69

3.10

Feb.

32

31

31

30

29

31

54

48

44

43

48

67

57

52

71

74

*79

75

73

67

62

59

61

62

59

56

55

56

_

1,510

53.9

2.11

2.20

Calendar year 1954: Max 30O Hin 4.6

F'.ar .

61

135

m

44

47

63

72

64

62

63

68

71

71

63

83

98

96

71

63

59

57

*71

110

101

115

118

121

103

79

74

35

2,512

81.0

3.18

3.66

Apr.

86

80

73

71

52

56

77

77

62

56

48

41

38

35

59

65

58

53

52

55

51

52

53

50

58

71

89

80

91

91

1,884

 62.8

2.46

2.75

May

~95 104

*86

79

75

81

77

77

73

68

62

59

57

54

51

49

46

43

40

36

34

33

32

31

*30

29

29

29

29

28

30

1,646

53.1

2.08

2.40

June

36

36

36

33

33

31

29

27

26

26

24

32

37

TZ

*32

29

28

25

24

24

24

25

25

27

29

28

24

23

ZO

ii

846

28.2

1.11

1.23

July

18

18

23

21

21

23

-55 23

23

21

19

17

15

14

12

13

17

16

15

13

12

11

9.8

10

*8.5

7.6

7.3

7.3

7.3

6*3

6.0

463.6

15.0

0.588

C.68

Aug.

5.6

5.0

4.6

4.0

3.7

3.4

TT5

7.0

6.2

5.0

5.2

9.0

17

30

28

22

17

100

700

*790

*680

*529

434

375

317

273

233

199

172

150

117

5,246.2

169

6.63

7.65

Sept.

20

36

50

51

53

61

*55

53

50

49

46

44

41

36

34

33

32

32

70

128

67

9.2

¥7a

15

26

25

25

28

30

28

1,237.0

41.2

1.62

1.80

Mean 59.9 Cfsm 2.35 In, 31.90

Water year 1954-55: Max 790 Min 3.4 Mean 65.5 Cfsm 2.57 In- 34.84

* Discharge measurement made on this day.

Note. No gage-height record Oct. 3-28, Aug. 1-20; discharge estimated on basir of 1 discharge measurement, weather records, recorded range in stage, records of gate and sluiceway operations upstream, 

and records for stations on nearby streams. Shifting-control method used Aug. 31 to Sept. 19, 

Sept. 21-30. Discharge in cubic feet per second per square mile and runoff in irches may not represent natural flow because of regulation.
PROVIDENCE RIVER BASIN 127

Blackstone River at Northbridge, Mass.

Location.--Lat 42°09il3", long 71°39i09", on left bank 800 ft downstream from Paul

Whitin Co. dam at Northbridge, Worcester County, and 3 miles downstream from Quinsigamond River.

October and November 1939 monthly

Drainage area. 139 sq mi.

Records available.--October 1939 to September 1955. 

discharge only, published in WSP 1301.

Gage. Water-stage recorder. Altitude of gage is 260 ft (from topographic map). 

Average discharge.--16 years, 231 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 16,900 cfs Aug. 20 (gage height, 16.74 ft), 

from rating curve extended above 3,800 cfs on basis of computation of flow over dam 

at gage height 13.7 ft and slope-area determination at gage height 16.74 ft; maximum 

gage height, 17.53 ft Aug. 20 (backwater from debris); minimum daily discharge, 74 cfs 

July 15.

1939-55: Maximum discharge, that of Aug. 20, 1955; maximum gage height, that of 

Aug. 20, 1955; minimum daily discharge, 2 cfs Aug. 29, 1941, Sept. 5, 1942.

Flood of Mar. 19, 1936, reached a stage of 13.7 ft, from floodmarks (discharge, 

7,510 cfs, by computation of flow over dam 800 ft above station).

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

Flow regulated by mills and reservoirs above station. August flood flow affected by 

dam failures and by reservoirs above station. Daily discharge includes flow diverted 

from Nashua River basin to Blackstone River basin for municipal supply of Worcester.

Revisions (water year si).--WSP 1301: 1940(M) .

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

394

376

353

315

267

258

238

227

222

213

227

242

233

203

238

710

?9T

394

335 

293

260

253

242

170

m

192

216

224

*321

394

384

9,063

292

20. 7

Nov.

310

281

784

826

633

505

457

449

511

440

397

363

308

274

262

229

238

251

246 

434

678

630

497

457

650

599

523

514

742

759

14,247

475

7.60

Dec.

644

540

508

505

491

471

389

332

315

355

315

288

*278

344

1,160

911

602

724

1,570 

1,070

832

728

664

622

552

485

446

432

612

851

843

18,679

603

O

Jan.

678

682

706

661

589

586

549

449

4O2

389

342

*312

298

302

286

271

262

255

227 

209

190

185

180

175

170

165

160

140

130

125

120

10,195

329

13.1

Feb.

120

120

120

115

110

120

45O

350

235

210

260

380" 500

320

3OO

28O

*360

429

363 

298

274

260

318

350

312

274

262

310

7,800

279

29.9

Mar.

428

497

465

402

335

335

381

"532" 310

394

573

658

622

528

449

502

537

479

41O 

371

360

*562

911

794

664

640

672

579

508

460

426

15,584

503

38. 0

Apr.

418

416

376

416

358

328

381

366

335

308

288

264

231

235

238

253

253

235

224 

227

"2~58 218

260

235

384

567

'589" 895

804

745

11,205

374

23.3

May

612

5~2TT

*463

407

379

474

421

371

348

318

293

267

244

222

22O

220

211

194

186 

172

168

160

106

14?

*152

152

160

130

120

115

210

8,163

263

20.8

June

330

T9T

192

164

170

154

161

148

*170

120

138

236

246

207

*164

ISO

150

122

115 

137

135

183

152

193

201

164

146

146

122

119

5.O27

168

13.9

July

98

96

162

126

138

176

229

154

154

154

138

124

94

101

74

104

158

132

121 

113

100

98

86

98

*114

84

103

89

79

102

96

3,695

119

31.3

Aur;.

113

77

96

96

91

91

93

168

105

107

75

129

398

324

213

184

192

917

8,500 

*8.850

*3,620

2,310

2,070

1,780

1,370

1,080

974

918

8O4

644

*654

37,043

1,195

13.9

Sept.

510

m

295

29O

379

471

373

286

264

274

293

269

244

216

216

203

249

201

302 

386

214

216

111

WT

258

229

222

253

218

216

8,190

273

27. 0

Adjusted for diversion

Mean 

Cf sm 

In.

272 

1.96 

2.25

467 

3.36 

3.7E

Calendar year 1954: 

Water year 1954-55:

6O3 

4.34 

5.00

316 

2.27 

2.62

249 

1.79 

1.86

465 

3.35 

3.85

35O 

2.52 

2.81

242

1.74 

2.O1

Observed

Max 3,680 Min 63 Mean 380 

Max 8,850 Min 74 Mean 408

154 

1.11 

1.23

87.9 

0.632 

O.73

1,181 

8.50 

9.80

246 

1.77 

1.97

Adjusted

Mean 365 Cfsm 2.63 In. 35.61 

Mean 388 Cfsm 2.79 In. 37.88

* Discharge measurement made on this day.

t Diversion from Nashua River basin to Blackstone River basin for municipal supply of Worcester, 

equivalent in cubic feet per second. Records furnished by city of Worcester.

Note. No gage-height record Jan. 21 to Feb. 17; discharge estimated on basis of 1 discharge measurement, weather records, recorded range in stage, and records for Blackstone River at Woonsocket 

and Kettle Brook at Worcester. Discharge in cubic feet per second per- square mile and runoff in 

inches may not represent natural flow because of regulation.
128 PROVIDENCE RIVER BASIN

Branch River at Porestdale, R. I.

Location. Lat 41°59'47", long 71°33'47", on left bank 20 ft upstream from abandoned 

bridge, 600 ft downstream from milldam at 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 1955. Published as "at Branch Village" 1909, 1912-13.

Gage.--Water-stage recorder. Altitude of gage is 180 ft (from topographic map). Prior to 

July 28, 1913, staff gage at site 1 mile downstream at different datuir.

Average discharge.--15 years, 158 cfs.

Extremes. Maximum discharge during year, 4,240 cfs Aug. 19 (gage height, 10.52 ft), from 

rating curve extended above 2,100 cfs on basis of computation of peak flow over dam 

600 ft above station; minimum daily, 10 cfs Apr. 23.

1940-55: Maximum discharge, that of Aug. 19, 1955; minimum daily, 5.2 cfs Oct. 7, 

1948.

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 tables, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

1.7

1.9

2.0 

2.3 

2.6 

3.0

Oct. 1 to Aug. 19

26

55

100

189

7.0 

9.0

Aug. 20 to Sept. 30

328

490

870

1,800

3,000

1.8 21

1.9 30

2.0 39

2.3 75

2.6 120

3.0 198

3.5 329

4.0 490

Note. Same as preceding 

table above 4.0 ft.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

182

84

19

135

184

179

179

154

24

22

40

11

143

194

187

104

236

274

212

202

192

192

86

30

127

187

184

192

202

107

45

4,309

139

1.49

1.72

Nov.

248

*212

411

574

466

365

356

359

284

249

178

238

206

199

236

214

206

204

202

206

366

539

356

301

310

344

292

275

397

407

9,200

307

3.29

3.67

Dec.

328

284

261

247

199

289

244

236

238

298

247

249

*289

294

1,010

763

518

454

983

742

560

480

433

350

365

325

362

316

433

620

650

13,067

422

4.52

5.21

Jan.

494

456

546

433

375

359

375

272

298

331

275

*252

247

236

162

209

266

217

204

199

189

184

34

182

194

156

96

95

92

27

125

7,580

245

2.63

3.02

Feb.

160

102

95

93

89

23

204

280

202

192

202

656

423

347

247

214

269

*369

261

258

289

241

249

281

255

167

196

284

-

_______

6,648

237

2.54

2.65

Mar.

258

313

272

244

162

230

381

307

261

284

407

401

372

375

301

289

337

301

228

252

298

323

686

*5%8

426

340

388

388

310

266

241

10,169

328

3.52

4,05

Apr.

228

180

169

287

272

238

222

212

186

142

204

168

173

175

147

52

90

194

184

179

175

140

10

14

187

269

426

313

453

487

6,176

206

2.21

2.46

May

362

326

249

*230

212

209

145

192

264

212

204

202

89

56

120

203

196

196

187

68

160

165

120

74

96

89

*87

23

22

21

94

4,873

157

1.68

1.94

June

29

20

21

44

58

167

156

22

21

20

17

70

234

Tef9

175

19

19

19

30

110

96

99

126

142

23

24

24

24

25

25

2,048

68.3

0.732

0.82

July

32

45

58

56

52

*58

76

93

50

47

39

34

33

54

33

30

27

37

33

30

31

32

32

46

41

36

*34

34

35

33

33

1,304

4?.l

0.451

0.52

Aug.

33

32

31

32

32

31

34

31

25

25

26

33

156

222

112

121

130

73

*2,360

2,950

1,170

642

489

567

483

420

290

268

270

216

213

11,517

372

3.99

4.59

Sept.

212

210

99

122

137

203

*201

188

139

25

23

150

156

94

106

141

114

156

215

206

163

104

109

46

512

302

224

221

248

231

4,857

162

1.74

1.94

Calendar year 1954: Max 2,450 Min 11 Mean 221 Cfsm 2.37 In. 32.11

Water year 1954-55: Max 2,950 Mln 10 Mean 224 Cfsm 2.40 m. 32.59

large (base. 880 cfs). Dec. 15 (2 p.m.) 1,210 cfs (5.79 ft); Dec. 19 (10:50 a.m.) 

5.54 ft); Aug. 19 (10:30 p.m.) 4,240 cfs (10.52 ft).

Peak dlschar 

1,090 cfs (5.

* Discharge measurement made on this day.

Note.--Discharge in cubic feet per second per square mile and runoff in inches may not repre 

natural flow because of regulation.
PROVIDENCE RIVER BASIN 129

Blackstone River at Woonsocket, R. I.

Location. Lat 42°00'22", long 71°30'13", on right bank at Woonsocket, Provideme County, 

50 ft downstream from Peters River.

Drainage area.--416 sq mi.

Records available. February 1929 to September 1955.

Qagi.--Water-stage recorder. Datum of gage is 107.42 ft above mean 8§a level, datum of 

1989.

Average discharge. 26 years, 705 cfs (adjusted for diversion),

Extremes. Maximum discharge during year, 32,900 cfs Aug. 19 (gage height, gl.8 ft, from 

floodtnarks) , from rating curve extended above 15,000 cfs on basis or slope-area determination of peak flow, affected by failure of Horeshoe Bam on Mill Hivfsr; minimum 

daily, 125 cfs Aug. 4.

1929-SS: Maximum discharge, that of Aug. 19, 1965; minimum daily, 21 ofs Aug. 11, 

1934, flow diverted around station in Hamlet Trench net insluded.

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

August flood flow affected by reservoirs and by dam failures abovs station. Plow regulated by powerplants and reservoirs above station. Extremes and figures of daily drscharge include flow diverted from Nashua River basin to filackstone River basin for 

supply of city of Worcester, Mass., and flow diverted around station in Hamlet Trench.

Revisions (water years). WSP 756: Drainage area. W3P 781: 1931(M) . WSF 1061: 1931.

Rating table, watee year 1954-55 (gage height, In feet, and discharge.

In cubic feet per second)

(Backwater from aquatic vegetation June 16 to Aug. 18} 

shifting-control method used Sept. 2=50)

1.4 

B.O 

2.5 

3.0 

4.0

109

252

418

660

1,350

5.0

10.0

16.0

20.0

2,300

8,540

16,000

27,100

Discharge, in cubic feet per second, water year October 1854 to September 1955

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

"28 27

29

30

31

Total

Mean

(t)

Oct.

873 

754

698

780

800

716

651

579

424

480

445

441

553

582

570

839

1,260 

1,160

950

894

735

716

558

381

OT

582

552

562

629

901

936

21,442

692

20.7

Nov.

1,050 

*964

1,530

2.5.90

2,170

,660

,420

,360

,200

,230

1,030

1,010

887

820

859

728

668 

662

716

894

1,710

2,180

1,610

1,320

1,410

1,640

1,380

1,300

1,700

2,020

39,518

1,317

7.60

Dec.

1,860 

1,460

1,250

1,100

1,090

1,150

1,070

971

943

1,120

1,000

a940

*915

1,010

2,920

3,280

2,390 

2,130

5,560

3,380

2,690

2,280

2,010

1,830

1,810

1,580

1,570

1,450

1,770

2,560

3,050

56,119

1,810

0

Jan.

2.490 

2,220

2,420

2,140

1,930

1,790

1,750

,500

,330

,340

,240

* ,140

a ,070

a895

735

761

806 

748

898

668

602

583

459

543

583

508

475

485

397

320

409

33,035

1,066

13.1

Feb.

523

417

379

402

367

304

338

1,330

945

744

876

2,040

1,640

1,240

959

789

1,000 

*1,400

1,140

1,040

994

889

896

1,050

1,020

823

816

925

25,886

924

29.9

Mar.

1,000 

1,280

1,240

1,160

932

1,000

1,280

1,160

1,080

1,140

1,440

1,620

1,660

1,600

1,340

1,320

1,460 

1,380

1,110

1,100

1,100

1,320

2,570

*2,570

2,150

1,810

1,810

1,790

1,560

1,340

1,170

44,492

1,435

38.0

Apr.

1,100 

982

968

1,110

1,130

1,010

1,060

989

863

810

830

731

701

677

665

550

621 

719

654

637

627

637

5~75~ 525

855

1,220

1,800

1,880

2.040

2,040

29,016

967

23.3

May

Jjleg 

1,480

1,160

*1,040

960

974

918

918

967

816

790

764

590

479

595

615

610 

580

550

466

355

282

380

322

377

359 *377

290

254

246

354

20,648

666

20.8

June

526

601

403

370

335

427

492

3S8

330

327

£68

459

757 643"

550

345

332

304

'32? 223

379

381

371

412

326

301

266

286

269

£34

11,486

383

13.9

July

218 

210

231

247

*253

311

378

353

258

231

244

198

198

231

210

1-69

138 

209

187

197

185

187

168

181

192

192

*175

178

171

153

135

6,618

213

31.3

Aug.

142 

162

135

125 ra

127

128

150

185

150

155

211

357

595

403

348

318 

686

*11,200

a25.900

a!2,200

*a6,430

4,410

a4,260

a3,500

2,750

2,190

1,910

1,710

1,460

1,380

83,816

2,704

13.9

Sept.

1.480 

1,260

1,050

1,000

937

1,280

1,240

1,000

807

619

583

699

727

588

573

583

573 

603

675

1,080

1,020

687

549

488

1,210

1,020

781

840

930

821

25,723

857

27.0

Adjusted for diversion

Mean 

Cfsm 

In.

671 

1.61 

1.86

1,31C 

3.15 

3.5]

1,810 

4.35 

5.02

1,053 

2.53 

2.92

895 

2.15 

2.24

1,397 

3.36 

3.87

944 

2.27 

2.53

645

1.55 

1.79

Observed

Calendar; year 1954: 

Water year 1954-55:

Max 8,530 Mln 142 Mean 989 

Max 25,900 Mln 125 Mean 1,090

Peak discharge (base, 3,400 cfs).-

to 5:30 p.m.) 3,950 cfs (6.46 ft); A

369

0.887 

0.99

182 

0.438 

0.51

2,690 

6.47 

7.45

830 

Z.OO 

2.23

Adjusted

Mean 974 Cfsm 2.34 In. 31.77 

Mean 1,070 Cfsm 2.57 In. 34.92

-Dec. 15 (9:15 p.m.) 3,830 cfs (6.36 ft); Dec. 19 (3:30 

Jg. 19 (10 p.m.) 32,900 cfs (21.8 ft).

Discharge measurement made on this day.

t Diversion, equivalent In cubic feet per second, from Nashua River basin for municipal supply of 

Worcester, Mass. Records furnished by city of Worcester.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, 1 measurement of 

stage, weather records, recorded range In stage when available, appearance of recorder chart, floodmarks, and records for station at Northbridge, Mass.
130 PROVIDENCE RIVER BASIN

Woonasquatucket River at Centerdale, R. I.

Location.--Lat 41°51'32", long 71°29'16", on right bank 75 ft downstream from bridge on 

U.S. Highway 44, at Centerdale, Providence County, and 6^ miles upstream from mouth.

Drainage area. 38.3 sq mi.

Records available. July 1941 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 95 ft (from topographic map).

Average discharge. 14 years, 67.2 cfs.

Extremes.--Maximum discharge duping year, 605 cfs Dec. 18 (gage height, 5.13 ft); minimum 

daily, 8.9 cfs Aug. 6.

1941-55: Maximum discharge, 1,100 cfs Sept. 11, 1954 (gage height, 7.03 ft), from 

rating curve extended above 450 cfs; minimum daily, 3.4 cfs Oct. 13, 19, 1941.

Flood in March 1936 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.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

66

58

59

68

60

62

63

59

50

53

67

45

62

55

55

58

53

67

57

57

62

53

45

37

68

60

55

52

68

60

67

1,799

58.0

1.51

1.75

Nov.

79

64

*132

*160

154

124

109

107

91

86

67

89

67

65

84

70

63

72

76

75

*188

2O2 *llz~

151

170

163

130

120

*179

172

3,491

116

3.03

3.39

Dec.

157

137

120

106

102

109

99

95

96

116

110

1O7

108

126

383

339

280

327

479

352

327

278

235

213

192

172

159

149

178

261

278

6,220

201

5.25

6.04

Jan.

247

237

230

2O3

178

171

169

146

133

13 O

116

109

102

97

79

85

*83

86

77

75

74

61

70

83

71

70

70

58

58

62

73

3,503

113

2.95

3.40

Feb.

62

62

63

50

58

6O

145

86

74

66

113

201

106

111

118

109

163

168

154

*139

137

121

118

114

106

93

96

114

-

3,007

107

2.79

2.92

Mar.

Ill

118

109

111

i*Z

123

165

144

137

143

161

154

146

146

130

132

128

118

107

99

112

155

259

227

204

177

169

151

129

110

4,390

142

3.71

4.26

Apr.

104

93

92

112

99

97

96

91

81

74

87

74

75

74

76

65

66

82

71

58

54

58

51

47

95

84

89

117

216 

pno tUCJ

2,686

89.5

2.34

2.61

May

181

152

123

*108

101

*101

85

87

103

87

82

75

76

45

46

61

56

53

48

46

41

40

*54

44

44

45

*45

37

32

38

48

2,184

70.5

1.84

2.12

June

43

40

39

37

22

36

42

40

43

37

35

34

724"8

41

38

37

34

174"8

62

66

49

48

45

26

50

48

*43

42

1,262

42.1

1.10

1.23

July

42

36

*19

17

IT

49

50

44

39

20

41

39

39

38

41

37

18

35

36

*36

36

36

31

17

34

37

38

39

38

36

18

1,077

34.7

0.906

1.05

Aug.

34

39

36

17

9.4

1T~ 8.9

35

41

41

41

50

43

22

18

37

44

56

291

?06

203

210

205

191

*147

133

103

91

86

74

68

2,591.3

83.6

2.18

2.52

Sept.

69

66

57

54

59

73

59

56

55

51

33

56

54

54

53

52

47

30

48

54

52

50

49

61

51

68

57

66

63

60

1,657

55.2

1.44

1.61

Calendar year 1954: Max 479 Min 12 Mean 97.6 Cfsm 2.55 In. 34.59

Water year 1954-55: Max 479 Min 8.9 Mean 92.8 Cfsm 2.42 In. 32.90

* 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.
PAWTUXET RIVER BASIN 131

South Branch Pawtuxet River at Washington, R. I.

Location. Lat 41°41'24", long 71°33'59", on right bank 150 ft downstream from highway 

bridge at Washington, Kent County, and 0.9 mile upstream from outlet of Tlo^ue Lake.

Drainage area. 63.8 sq ml.

Records available. October 1940 to September 1955.

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

Average discharge^ 15 years, 124 cfs (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 658 cfs Dec. 19 (gage height, 2.72 f';)- minimum dally, 19 cfs July 31, Aug. 7.

1940-55: Maximum discharge, 1,320 cfs Sept. 12, 1954 (gage height, 4.11 ft); minimum dally, 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 no gage-height record which are fair. 

Flow regulated by Plat River Reservoir (usable capacity, 250,000,000 cu ft) and 

smaller reservoirs. Diversion above station from Carr Pond for municipal supply of 

Coventry, Warwick, and West Warwick.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

2.6

131

224

590

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

120

96

96-

129

118

113

101

127

38

47

131

44

132

154

188

140

30

168

172

158

158

153

27

21

192

*231

237

237

191

41

34

3,824

123

-12.5

Nov.

205

237

277

277

264

114

137

277

264

257

98

205

79

30

216

250

257

264

257

65

51

246

290

267

86

265

137

148

291

298

6,109

204

+ 11.5

Dec.

*270

257

257

65

72

242

257

250

257

250

65

31

220

277

410

515

410

287

582

575

455

402

342

335

320

290

270

264

290

350

418

9,285

30O

+11.9

Jan.

380

342

365

328

290

277

298

257

244

*290

277

277

264

257

52

74

250

260

260

255

250

50

35

230

250

250

245

240

40

30

220

7,137

230

-43.0

Feb.

235

235

230

225

35

25

200

210

210

220

23O

70

120

300

240

210

310

340

250

*235

342

290

264

257

250

53

66

257

5,909

211

+33.6

Mar.

270

264

264

264

67

97

335

3?8

290

275

285

95

115

275

270

270

265

255

55

50

255

255

260

270

280

290

280

270

260

257

257

7,323

236

-9.45

Apr.

257

178

165

244

257

250

250

244

178

169

224

237

237

231

215

73

70

209

224

224

214

176

28

25

*47

47

54

53

96

96

4,972

166

+22.1

May

183

217

196

169

160

209

173

183

214

204

- 173

161

150

100

114

141

124

131

139

110

74

86

118

65

138

*91

73

65

69

74

88

4,192

135

-7.09

June

77

72

69

53

59

68

69

65

61

62

47

89

16O

160

149

113

72

72

67

85

96

74

82

65

72

74

80

100

96

77

2,485

82.8

+2.47

July

80

57

57

53

55

74

*1OO

120

117

91

80

63

53

55

47

35

36

47

82

135

139

*Tl6"

29

23

32

32

56

100

81

22

19

2,086

67.3

-15.6

Aug.

65

70

56

55

59

27

19

T4

67

62

75

162

117

110

75

87

119

128

244

193

290

?37

193

193

178

*219

209

204

204

193

193

4,177

135

-6.91

Sept.

193

188

188

178

178

173

165

165

165

160

152

152

152

148

148

144

135

131

128

128

124

117

114

T14

117

120

124

128

124

124

4,377

146

-68.6

Adjusted for diversion and change in reservoir contents

Mean 

Cfsm

111 

1.74 

2.00

215 

3.37 

3.76

311 

4.87 

5.63

187 

2.93 

3.38

245 

3.84 

3.99

227 

3.56 

4.10

188 

2.95 

3.28

128 

2.01 

2.32

Observed

Calendar year 1954: 

Water year 1954-55:

Max 1,180 Mln 13 Mean 170 

Max 582 Min 19 Mean 17O

85.3 

1.34 

1.49

51.7 

0.810 

0.93

128 

2.01 

2.31

77.3 

1.21 

1.35

Adjusted

Mean 172 Cfsm 2.7O In. 36.57 

Mean 162 Cfsm 2.54 in. 34.54

* 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 Flat River Reservoir, equivalent in cubic feet per second. Becords furnished by Kent County Water Authority and Quidnick Reservoir Co.

Note. No gage-height record Jan. 17 to Feb. 2O, Mar. 9-29; discharge estimated on basis of 1 discharge measurement, weather records, recorded range in stage, records of elevations and gate operation of Flat River Reservoir, and records for Pawtuxet River ab Cranston^
1-32 PAWTUXET RIVER BASIN

Pawtuxet River at Cranston, R. I.

Location. Lat 41°45 I 03", long 71°26'44", on left bank at Cranston, Providence County, 

0.7 mile upstream from Pocasset River.

Drainage area. 200 sq mi.

Records available. December 1939 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 15 years (1940-55), 386 cfs (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 1,490 cfs Aug. 19 (gage height, 7.59 ft), from 

rating curve extended above 1,100 cfs; minimum daily, 64 cfs July 31, Aug. 7.

1939-55: Maximum discharge, 2,010 cfs Sept. 13, 1954 (gage height, 8.85 ft), from 

rating curve extended above 740 cfs; minimum daily, 22 cfs Sept. 4, 1E44.

Rev is ions.--F igures of maximum discharge for the water years 1940 and 1941 have 

been revised to 1,960 cfs Jan. 15, 1940, Feb. 8, 1941, superseding those published in 

WSP 921.

Remarks.--Records excellent except those for periods of no gage-height record or backwater from aquatic vegetation, which are good. Flow regulated by powerplants, and 

by ocituate, Flat River, and other reservoirs (combined usable capacity, about 

5 1/3 billion cubic feet). Diversion above station from Scituate Reservoir for municipal supply of Providence, North Providence, Cranston, Johnston, Smithfield, and Warwick.

Revisions (water years).--WSP 971: 1940-42.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

383

233

214

368

357

*333

328

333

180

104

331

172

282

321

396

264

162

317

394

353

352

351

193

80

259

422

435

4/4

527

347

168

9,403

303

-1.67

Nov.

362

489

747

*728

602

409

277

495

554

52?

376

423

342

193

340

481

486

489

500

396

456

533

663

638

590

632

506

456

*759

9O2

15,346

512

+141

Dec.

793

715

704

547

456

650

686

677

685

819

567

456

616

691

1,330

1,240

1,130

966

1,560

1,350

1,190

1,080

977

946

871

868

910

790

862

1,080

1,160

27,172

877

+160

Jan.

1,010

998

1.080

950

873

851

887

736

749

865

784

762

751

735

543

456

*691

718

703

696

672

535

424

591

679

680

670

656

510

195

351

21,801

703

-149

Feb.

521

528

a515

a510

315

110

648

496

422

391

525

957

342

575

646

605

761

818

728

*717

869

830

776

745

722

559

465

690

_

16,786

600

+145

Mar.

784

79O

730

759

590

572

929

905

820

804

798

587

535

721

747

749

756

709

599

420

475

713

1.060

779

707

576

526

576

618

*587

576

21,497

693

+69.3

Apr.

576

472

383

507

582

578

525

549

415

279

432

436

396

339

376

252

165

275

376

367

367

371

212

132

231

293

328

280

477

322

11,293

376

+158

May

294

400

382

358

343

*408

318

310

422

393

364

338

319

232

210

291

302

289

293

274

176

162

238

190

220

217

193

131

113

122

182

8,484

274

+76.5

June

188

171

*173

126

80

154

172

165

158

148

112

168

302

275

257

224

186

116

95

176

204

221

193

200

135

122

182

204

*207

193

5,307

177

+35.7

July

205

139

92

85

169

27O

371

323

235

172

237

252

237

220

232

132

82

200

246

291

283

246

125

70

98

142

142

165

217

121

64

5,863

189

-73.7

Aug.

94

*165

158

165

155

102

64

90

168

162

196

380

371

257

186

210

224

362

1,040

1,200

926

876

800

745

685

653

573

629

703

624

610

13,573

438

+146

Sept.

643

*624

535

388

275

430

475

449

448

287

246

383

428

419

419

415

269

207

370

463

436

378

372

289

272

345

398

435

438

410

11,946

398

-135

Adjusted for diversion and change in reservoir contents

Mean 

Cfsm 

In.

302

1.51 

1.74

652 

3.2£ 

3.64

Calendar year 1954: 

Water year 1954-55:

1,037 

5.18 

5.98

555 

2.78 

3.20

745 

3.72 

3.88

763 

3.82 

4.40

534 

2.67 

2.98

350 

1.75 

2.02

Observed

Max 1,910 Min 60 Mean 458 

Max 1,360 Mln 64 Mean 462

213 

1.06 

1.19

115 

0.575 

0,67

583 

2.92 

3.36

263 

1.32 

1.47

Adjusted

Mean 543 Cfsm 2.72 In. 36.85 

Mean 508 Cfsm 2.54 In. 34.53

Board and Quidnlck Reservoir Co.

a No gage-height record; discharge estimated on a basis of weather records, recorded range In 

stage, and records for adjacent days.

Note.--Backwater from aquatic vegetation Oct. 1 to Feb. 2,, Feb. 5-17, May 10 to Sept. 30.
POTOWOMUT RIVER BASIN 133

Potowomut River near East Greenwich, R. I.

Location.--Lat 41°38'28", long 71°26'45", on right bank 45 ft upstream from Old Forge Dam 

in North Kingstown. Washington County, l|- miles south of village of East Greenwich, 

Kent County, and 2^ miles upstream from mouth.

Drainage area. 23.0 sq mi.

Records available. August 1940 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 10 ft (from topographic map).

Average discharge. 15 years, 41.8 cfs (unadjusted).

Extremes.--Maximum discharge during year, 269 cfs Feb. 12 (gage height, 2.12 ft); maximum 

gage height, 2.12 ft Feb. 12, Aug. 19; minimum discharge, 3.4 cfs Aug. 7.

1940-55: Maximum discharge, 450 cfs Sept. 12, 1954 (gage height, 2.63 ft); maximum 

gage height, 6.78 ft Aug. 31, 1954 (backwater from hurricane tidal wave); no flow 

Oct. 24-26, 1947 (due to closing of gate at Old Forge Dam).

Maximum stage known, about 8.5 ft Sept. 21, 1938, from information by local resident 

(backwater from hurricane tidal wave).

Remarks. Records good. Diversions above station for supply of East Greenwich, North 

Kingstown, Warwick, and United States Naval establishments.

Rating tables, water year 1954-55 (gage height, In feet, and discharge, 

in cubic feet per second)

Oct. 1 to Dec Dec. 16 to Sept. 30

1.2

1.3 

1.5

1.7 

1.9

119

188

67

1.1

1.2

1.3 29

1.5 

1.9 

2,1

70

190

262

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

42

38

37

36

35

34

31

31

29

30

29

29

28

27

26

32

34

30

28

27

26

24

23

23

22

*22

24

26

47

99 

oTol

1,050

33.9

4.82

Nov.

62

a49

a90

a!05

a83

a66

a56

50

46

42

40

40

38

37

36

36

36

36

40

56

114

102

77

65

91

86

72

69

94

99

1,913

63.8

4.61

Dee.

*79

67

62

58

56

53

51

49

54

107

91

72

63

68

186

156

112

109

208

15T

124

107

101

104

101

90

85

85

101

158

183

3,096

99.9

5.09

Jan.

137

118

124

107

95

95

104

92

85

80

75

72

*70

67

62

62

60

57

56

54

50

50

50

50

50

49

48

45

42

39

58

2,183

70.4

4.64

Feb.

38

38

36

38

38

40

160

128

75

61

83

240

150

95

80

75

113

143

107

90

*82

80

80

80

75

69

68

75

-

- -----

2,437

87.0

4.48

Mar.

85

98

80

90

101

104

137

107

90

90

85

80

80

78

72

85

92

80

75

70

69

98

204

143

107

101

104

*90

80

78

75

2,928

94.5

4.27

Apr.

70

69

69

85

85

75

72

68

63

60

58

57

55

55

56

55

51

50

48

49

46

50

52

49

*67

90

92

78

134

112

2,020

67.3

4.27

May

82

68

60

57

58

68

61

62

75

63

55

50

47

45

44

40

42

42

38

36

35

33

32

32

29

*30

36

34

32

30

2£!

1,444

46.6

5.12

June

27

25

24

27

26

24

25

29

27

26

24

33

66

49

36

28

24

22

20

25

31

26

22

20

24

26

25

22

20

17

820

27.3

5.38

July

16

16

15

14

13

17

*46

39

23

15

14

12

11

11

8.5

9.6

10

10

8.5

7.0

7.0

*8.6

6.1

7.0

7.0

6.6

7.0

6.1

6.1

6.1

390.7

12.6

6.40

Aug.

5.6

4.8

4.5

4.1

4.1

3.8

4.3

5.6

4.8

4.1

4.5

30

75

48

26

13

9.0

19

150

181

82

48

38

36

25

20

18

17

15

12

11

923.2

29.8

6.15

Sept.

15 *18

16

14

13

17

26

20

17

15

16

15

14

14

15

14

14

14

14

26

22

16

11

TS

GO

46

31

31

36

31

630

21.0

4.65

Calendar year 1954: Max 378 Min 9.0 Mean 58.4

Water year 1954-55: Max 240 Min 3.8 Mean 54.3

Peak discharge (base. 190 cfs).--Dec. 15 (12:30 to 3 p.m.) 210 cfs (1.955 ft); Dec. 19 (7:30 to 

9 a.m.) 222 cfs [1.99 ft)j Dec. 30 (9:30 to 12 p.m.) 208 cfs (1.95 ft); Feb. 7 (4 to 6 P.m.) 204 cfs 

(1.935 ft); Feb. 12 (6:30 to 8 a.m.) 269 cfs (2.12 ft); Mar. 23 (7:30 to 8:30 a.m.) 223 cfs (1.995 

ft); Aug. 19 (8:30 to 10:30 p.m.) 251 cfs (2.12 ft).

* Discharge measurement made on this day.

t Diversions, equivalent in cubic feet per second, for supply of East Greenwich, North Kingstown, 

Warwick, and U. S. Naval establishments; for calendar year 1954, 5.05 cfs; for water year 1955, 

5.00 cfs. Records furnished by U. 3. Navy and Kent County Water Authority.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stage, 

and records for Wood River at Hope Valley and Adamsville Brook at Adamsville.
134 PAWCATUCK RIVER BASIN

Pawcatuck River at Wood River Junction, R. I.

Location. Lat 41°26 I 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, li miles southwest of 

Carolina, Washington County, and 2.9 miles upstream from Wood River.

Drainage area. 100 sq ml.

Records available.--October 1940 to September 1955. October and November 1940 monthly 

discharge only, published in WSP 1301. 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. 15 years, 180 cfs.

Extremes. Maximum discharge during year, 580 cfs Jan. 8 (gage height, 4.63 ft); maximum 

gage height, 4.78 ft Dec. 20; minimum discharge, 18 cfs Aug. 7; miniimm daily, 50 cfs 

Aug. 7.

1940-55: Maximum discharge, 1,040 cfs Mar. 17, 1953 (gage height, 5.83 ft); maximum gage height, 6.23 ft Sept. 13, 14, 1954; minimum discharge, 7.4 cfs Oct. 10, 1947; 

minimum daily, 15 cfs Oct. 11, 1947.

Remarks. Records excellent. Flow regulated by powerplant and mills abov3 station. 

Revisions (water years).--WSP 1051: Drainage area. WSP 1201: 1948.

Rating tables, water year 1954-55 (gage height, In feet, and discharge,

in cubic feet per second)

(Shifting-control method used Nov. 3-8, Nov. 22 to Dec. 3, 

Dec. 1O to Jan. 8)

Oct. 1 to Jan. Jan. 9 to Sept. 30

2.5 

3.0 

4.0 

5.0

139 

265 

5O6 

765

1.9 

2.1 

2.5 

3.0 

4.0

66 

138 

24S 

449

Discharge, In cubic feet per second, water year October 1954 to September 1955

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.

236

221

213

208

*198

19O

183

178

170

173

180

158

176

163

153

168

178

ISO

176

168

163

151

141

146

153

139

139

139

158

216

252

5,467

176

1.76

2.03

Nov.

260

255

301

324

548

348

321

*294

273

257

239

236

213

210

208

198

193

19O

1ST

206

278

308

318

308

328

321

308

301

331

341

8,2O9

274

2.74

3.05

Dec.

338

328

3O4

281

273

265

249

244

*2!9"

314

321

326

311

308

427

496

520

511

552

565

562

516

468

444

429

395

376

363

383

446

523

12,087

39O

3.9O

4.5O

Jan.

540 5~2"8~

513

*477

444

4 2O

413

402

396

*380

355

332

320

291

280

271

255

241

236

226

212

210

206

2O3

2O3

201

199

186

183

171

166

9,460

305

3.05

3.52

Feb.

162

162

156 156-

156

16O

289

314

334

308

3O1

445

427

449

4T59"

358

367

401

*427

413

379

353

340

334

318

304

291

289

_

______

8,802

314

3.14

3.27

Mar.

297

314

312

34O

357

366

398

39O

382

364

342

324

316

306

295

299

297

289

289

278

599" 269

367

400

415

388

364

338

»322

308

£91

10,316

333

3.33

3.84

Apr.

273

264

257

264

264

264

266

257

243

236

226

219

212

208

212

210

206

2O1

194

192

190

19O

183

IBS

199

236

278

273

297

597

6,997

233

2.33

2.60

May

293

»57S

255

234

222

217

2O8

208

212

206

203

2O1

190

181

181

181

179

173

168

164

152

152

154

146

l¥S

148

188

19O

186

171

162

5,946

192

1.92

2.21

June

 *146

136

132

12O

126

128

120

118

118

118

107

128

154

156

158

144

126

110

112

118

108

*112

107

103

101

118

126

114

107

101

3,672

122

1.22

1.37

July

92

84

85

84

84

74

136

ISO

122

107

92

85

85

67

71

72

72

74

74

61

68

58

51

So

74

63

64

101

130

1O5

94

2,619

84.5

0.8*5

O.97

Aug.

92

7O

64

60

61

62

5O

5F

65

66

65

228

371

351

295

236

190

168

283

405

435 419-

345

273

243

215

192

179

166

160

152

6,O27

194

1.94

2.24

Sept.

*152

158

146

148

140

142

132

118

116

97

124

110

105

108

97

99

89

71

109

12O

118

112

107

123

183

206

255

199

188

173

3,993

133

1.33

1.48

Calendar year 1954: Max 864 Min 62 Mean 243 Cfsm 2.43 In. 33. 06

Water year 1954-55: Max 565 Min 50 Mean 229 Cfsm 2.29 In. 31.O.8

Discharge measurement made on this day.
PAWCAT0CK RIVER BASIN 135

Wood River at Hope Valley, R. I.

Location. Lat 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 1909 (gage heights only), March 1941 to September 

1955.Records of daily mean discharge for August to December 1909, published in 

WSP 261, have been found to be unreliable and should not be used.

Gage. Water-stage recorder and concrete control. Altitude of gage is 65 ft (from topof

raphic map). August to December 1909 staff gage at site 1,000 ft upstream at diferent datum.

Average discharge. 14 years, 145 cfs.

Extremes. Maximum discharge during year, 748 cfs Dec. 19 (gage height, 5.20 ft); minimum, 34 cfs Aug. 7; minimum daily, 36 cfs Aug. 6, 7.

1941-55: Maximum discharge 1,470 cfs Sept. 12, 1954 (gage height, 7.45 ft); minimum, 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 upstream from station.

Remarks. Records excellent. Some regulation at low flow by mills and ponds above station; regulation greater prior to 1948.

Revisions (water years).--WSP 1201: 1948(P). See also Records available.

Rating table, water year 1954-55 (gage height, in feet, 

and discharge, in cubic feet per second)

1.9 

2.2

2.5

3.0 

4.0 

5.0

260

488

698

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

22

23

24

25

£6

27

£8

29

30

31

Total

Mean

Cfsm

In.

Oct.

178

173

168

157

*149

144

136

126

119

110

110

110

107

103

103

166

208

170

154

144

133

126

119

114

112

107

105

105

141

£42

A1 6

4,357

141

1.95

£.24

Nov.

192

173

£98

38£

355

265

£37

218

£37

216

192

178

181

173

159

151

173

173

157

173

282

3£2

270

237

£88

275

£37

£26

268

£82

6,9£3

231

3.19

3.56

Dec.

250

2£6

£11

197

189

186

181

176

*IB¥

£6£

252

218

200

£29

515

505

411

4£4

696

59F

505

448

380

368

355

317

298

£88

324

435

498

10,320

333

4.60

5.30

Jan.

424 413-

413

*368

327

317

324

285

280

*257

244

££9

218

213

£08

£00

194

189

184

178

161

168

159

157

154

149

146

136

131

119

T2T

7,066

228

3.15

3.63

Feb.

116

116

110

IT2

112

119

368

337

250

216

250

586

. 500"

440

320

272

317

366

*324

290

268

252

252

255

239

226

221

224

-

______

7,458

266

3.67

3.83

Mar.

239

257

239

255

270

280

348

317

290

275

262

247

244

237

224

242

255

237

226

216

211

is/

417

578

334

308

298

272

*244

237

224

8,340

269

3.72

4.28

Apr.

216

205

200

221

218

211

211

189

176

165

159

157

151

154

165

159

149

146

144

141

136

T55

141

136

*159

208

262

237

282

285

5,521

184

2.54

2.84

May

247

2TF

194

181

173

184

173

170

192

181

168

151

144

141

144

133

133

128

119

114

107

103

101

97

101

*107

162

157

144

131

119

4,617

149

2.06

2.37

June

114

90

97

94

92

88

84

81

81

78

76

103

218

T5¥

136

110

96

84

78

78

92

84

*76

78

86

96

92

90

84

Z-L

2,915

97.2

1.34

1.50

July

69

63

62

60

57

56

78

94

73

64

62

59

53

50

47

44

44

44

44

44

43

41

40

38

39

41

40

51

86

72

59

1,717

55.4

0.765

0.88

Aug.

52

51

47

4£

38

36

35

39

40

40

39

108

346

247

154

112

92

114

436

545

357

255

221

237

208

*168

146

138

123

112

107

4,686

151

2.09

2.41

Sept.

116

126

114

101

94

92

92

83

78

73

70

69

67

64

63

63

62

BO- 59

72

80

78

70

99

218

184

133

141

162

136

2,919

97.3

1.34

1.50

Calendar year 1954: Max 1,26O Min 41 Mean 195 Cfsm 2.69 In. 36.56

Water year 1954-55; Max 696 Mln 36 Mean 183 Cfsm 2.53 In. 34.34

Peak .discharge (base, 550 cfs). Dec. 15 (8 p.m.) 574 cfs (4.43 f t) j Dec. 19 (2 to 4 p.m.) 748 cf. 

(5.20 ft); FebT 12 (5 to 6 p.m.) 649 cfs (4.79 ft)j Aug. 20 (5 to 7 a.m.) 600 cfs (4.56 ft). 

* Discharge measurement made on this day.
136 PAWCATUCK RIVER BASIN

Pawcatuck River at Westerly, R. I.

Location.--Lat 41°23'01", long 71D 50'Ol", 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 1955.

Gage. Water-stage recorder. Altitude of gage is at mean sea level (from topographic 

map).

Average discharge. 15 years, 539 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 2,060 cfs Dec. 20 (gage height, 6.94 ft); minimum daily, 110 cfs July 23, 24.

1940-55: Maximum discharge, 3,510 cfs Mar. 16, 1953 (gage height, 8.83 ft); maximum gage height, 12.16 ft Aug. 31, 1954 (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 lj miles upstream from station. Maximum discharge known, which occurred in 

November 1927, was possibly more than twice that of March 1936. Maximun 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. D. version above 

station for municipal supply of Westerly.

Revisions. WSP 1051: Drainage area.

Day

1

2

3

4

5

6

7

8

9

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)

Di

Oct.

665

637

630

623

*582

556

530

504

465

465

458

452

452 

439

426

543

630

651

582

530

504

478

432

426

432

420

406

376

435

616

795

16,144

521

2.45

seharge,

Nov.

788

707

955

1,210

1,200

1,130

1,030

*948

855

81O

742

700

665 

623

616

582

543

536

555

630

810

997

990

934

1,000

1,050

990

920

1,030

1,150

25,703

857

2.40

In cubl

Dec.

1,100

997

920

840

788

772

721

686

*679 §0"S

997

962

913 

920

1,490

1,650

1,620

1,600

1,980

2,040

1,940

1,780

1,620

1,490

1,410

1,320

1,240

1,170

1,200

1,480

1,760

38,991

1,258

2.37

Jan.

1.750

1,680

1,690

*1,610

1,470

1,380

1,340

1,280

1,190

1,140

1,070

997

948 

878

825

795

772

721

700

672

630

609

602

609

588

582

562

543

498

465

FTS

29,048

937

2.36

Feb.

439

432

426

413

594

406

904

1,150

1,060

920

892

1,440

1,550 

1,410

1,300

1,170

1,160

1,270

*1,260

1,210

1,150

1,07O

1,020

1,010

983

906

870

892

_

27,087

967

2.46

Mar.

913

976

969

1,000

1,100

1,140

1,300

1,280

1,210

1,150

1,100

1,000

990 

976

920

920

948

927

885

855

832 9T8~

1,260

1,540

1,270

1,220

1,180

1,110

*1,020

941

885

32,565

1,050

2.46

Apr.

 825

788

758

818

840

802

795

772

714

672

651

625

595 

582

582

576

562

562

543

530

517

510

510

510

562

651

870

906

955

969

20,550

685

2.28

May

934

*855

772

700

657

650

609

602

623

609

588

556

478 

472

472

478

458

452

432

406

564

358

570

364

552

570

459

478

491

465

458

16,272

525

2.76

June

*406

370

352

522

504

510

298

240 2~98~

 270

245

298

426 

536 4-5T

426

364

522

270

265

*265

280

275

255

280

328

534

510

310

275

9,725

324

5.05

July

221

208

198

185

185

190

406

439

5T2

504

250

221

208 

177

1^9

161

157

157

153

161

134

145

110

110

131

131

131

221

*3C4

2?8

235

6,4f2

2C8

3.SO

1955

Aug.

203

181

124

117

120

128

131

158

149

145

114 950"

1.770 

1,580

1,240

954

707

651

1,180

1,620

1,560

1,360

1,180

1,070

955

818

686

616

556

478

426

21,897

706

3.22

Sept.

*498

517

504

452

413

420

394

358

328

298

270

310

292

275

250

221

235

198 2T6"

358

382

328

259

280

700

765 'SST

637

665

616

12,084

403

2.66

Adjusted for diversion

Mean 

Cfsm 

In.

523 

1.77 

2.04

85E 

2.91 

3.2E

Calendar year 1954: 

Water year 1954-55:

1,260 

4.27 

4.92

939 

3.18 

5.67

970 

3.29 

3.42

1,053 

3.57 

4.12

687 

2.35 

2.60

528 

1.79 

2.06

Observed

Max 3,150 Min 128 Mean 742 

Max 2,040 Min no Mean 703

327 

1.11 

1.24

212 

0.719

o.es

710 

2.41 

2.77

405 

1.37 

1.55

Adjusted

Mean 744 Cfsm 2.52 In. 54.22 

Mean 706 Cfsm 2.39 In. 52.45

* Discharge measurement made on this day.

t Diversion for municipal supply of Westerly, equivalent in cubic feet per second. Records furnished by Westerly Board of Water Commissioners.
POQUONOCK RIVER BASIN 137

Great Brook at Poquonock Bridge, Conn.

Location. Lat 41°20'57", long 72°02 t 17", in midohannel on upstream side of weir-gate

Drainage area. 14.3 sq mi.

Records available. January 1946 to September 1955.

Gage. --Point gage above three sharp-crested weirs; gage read three times daily. Venturi 

meters at filter plant to measure diversion and wash water. Staff gages on Groton, 

Pohegnut and Ledyard Reservoirs and Smith Lake, to determine changes in contents. 

Datum of point gage is 2.78 ft above mean sea level, datum of 1929. '

Average discharge. 9 years, 25.7 cfs.

Extremes. --1946-55: Maximum discharge, 464 cfs (300 mgd) Sept. 12, 1954 (gage height, 

5.1 ft, from floodmarks) , uncorrected for storage and diversion.

Remarks . Records adjusted for change in contents in Groton, Pohegnut and Ledyard Reservoirs and Smith Lake, and for diversion for water supply of the borough of Groton.

Cooperation. --Yenturl-meter records and gage readings furnished by the borough of Groton, 

Department of Utilities.

Monthly discharge, water year October 1954 to September 1955

Month

October. ..................

November. .................

June ......................

Water year 1954-55. .....

Runoff 

(millions of 

gallons)

455.7 

828.6 

1,241.2

7,957.3

758.0 

677.3 

965.1 

552.6 

328.0 

182.0 

86.0 

341.0 

184.9

6,600.4

Mean

Millions 

of gallons 

per day

14.7 

27.6 

40.0

21.8

24.5 

24.2 

31.1 

18.4 

10.6 

6.07 

2.77 

11.0 

6.16

18.1

Cubic feet 

per 

second

22.7 

42.7 

61.9

33.7

37.9 

37.4 

48.1 

28 . 5 

16.4 

9.39 

4.29 

17.0 

9.53

28.0

Discharge per 

square mile

Millions 

of gallons 

per day

1.03 

1.93 

2.80

1.52

1.71 

1.69 

2.17 

1.29 

.741 

.424 

.194 

.769 

.431

1.27

Cubic feet 

per 

second

1.59 

2.99 

4.33

2.35

2.65 

2.61 

3.36 

2.00 

1.15 

.656 

.300 

1.19 

.667

1.96

Runoff 

in 

inche s

1.83 

3.34 

4.99

31.98

3.06 

2.72 

3.87 

2.23 

1.33 

.73 

.35 

1.37 

.74

26.56
138 THAMES RIVER BASIN

Willimantic River near South Coventry, Conn.

Location. Lat 41°45'02", long 72°15'58", on left bank 700 ft upstream from highway 

 bridge, 1 mile downstream from Mill Brook, 2.4 miles southeast of South Coventry, 

Tolland County, 2.8 miles upstream from Hop River, and 6.3 miles upstream from mouth.

Drainage area. 121 sq mi.

Records available . September 1931 to September 1955.

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. 24 years, 212 cfs.

Extremes. Maximum discharge during year, 24,200 cfs Aug. 19 (gage height, 18.66 ft, from 

floodmark), from rating curve extended above 3,600 cfs on basis of co-nputation of flow 

over dam at 7,880 cfs and contracted-opening determination of peak flow; minimum, 

20 cfs Aug. 2 (gage height, 2.13 ft); minimum daily, 24 cfs Aug. 1.

1931-55: Maximum discharge, that of Aug. 19, 1955; minimum, 2.0 cfs Aug. 21, 22, 

1949 (gage height, 1.60 ft); minimum daily, 2.5 cfs Sept. 18, 1949.

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

regulated by mills and reservoirs upstream.

Revisions (water years) WSP 781: 1934(m), drainage area. WSP 851: 1935-36. WSP 1201: 

193SlM,m), 1933-34, 1937, 1939-42.

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Aug. 19 Aug. 2o to Sept. 30

2.2 

2.5 

3.0 

4.0 

6.0

23

46

115

335

1,010

8.0

10.0

12.0

14.0

1,940

3,800

7,460

12,200

4.1 

4.5 

5.0

95

185

340

6.0 

8.0

770

1,940

Note. Same as preceding 

table above 8.O ft.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

156

150

130

124

136

125

120

113

105

99

113

115

112

105

113

243

178

145

129 

124

118

113

102

90

9T

99

107

125

168

253 218"

4,118

133

1.10

1.27

Nov.

187

164

516

525

390

290

222

209

202

178

172

162

148

136

14^

164

156

152

152 

397

555

453

335

290

405

390

312

282

420

435

8,557

285

2.36

2.63

Dec.

348

298

262

227

224

211

200

183

153

292

272

204

204

298

930

675

465

642

1,150 

?4S

540

465

405

405

360

312

318

308

*405

638

605

12,764

412

3.40

3.92

Jan.

450

450

495 4"20"

360

360

405

303

288

280

255

231

222

190

170

162

183

160

154 

143

136

132

120

127

130

136

132

117

107

87

81

6,986

225

1.86

2.14

Feb.

90

95

90

98

99

90

465

355

224

198

240

405

235

193

189

166

270

292

236 

209

213

206

298

405

298

236

222

278

-

6,399

229

1.89

1.97

Mar.

362

495

348

290

246

326

450

335

318

360

480

480

435

*390

335

405

480

375

312 

290

305

488

950

173

540

465

465

405

348

325

310

12,788

413

3.41

3.93

Apr.

295

292

288

465

465

420

435

360

302

278

272

258

248

248

255

236

209

224

218 

206

250" 204

272

227

*390

495

605

¥80

570

510

9,977

333

2.75

3.07

May

405

333

298

272

317

348

295

280

290

253

224

206

189

174

152

160

176

164

148 

130

120

101

96

113

152

148

132

109

90

84

10T>

6,067

196

1.62

1.87

June

253

133

154

113

96

101

99

93

87

84

76

98

143

127

98

84

74

58

45 

53

*185

170

118

107

113

96

83

86

76

73

3,236

108

0.893

1.00

JUy

66

54

~9"8 100

62

59

99

66

53

44

43

48

45

45

40

37

32

35

45 

40

35

32

28

31

34

39

33

61

49

37

2j5

1,515

48.9

0.404

0.47

Aug.

24

23

27

29

30

*31

36

73

60

53

42

147

735

1,230

628

310

186

337

*12.100 

6,650

1,850

1,030

924

830

580

468

408

392

336

288

284

30,143

972

8.03

9.26

Sept.

298 2"BT

180

155

145

222

213

170

142

135

145

213

182

168

127

142

*119

113

99

113

160

142

119

158

280

252

202

198

208

195

5,258

175

1.45

1.62

Calendar year 1954 : Max 2,280 Min 24 Mean 235 Cfsm 1.94 In. 26.41

Water year 1954-55: Max 12,100 Min 24 Mean 295 Cfsm 2.44 In. 33.15

Peak discharge (base. 1.10O cfs). Pec. 19 (3 a.m.) 1,21O cfs (6.46 ft); Aug. 14 (2:30 a.m.) 

1,600 cfs (7.40 ft); Aug. 19 (4 p.m.) 24,200 cfs (18.66 ft). 

* Discharge measurement made on this day. 

Note.--Stage-dlscharge relation affected by ice Jan. 14, 18, 21, 28, 3O, 31, Feb. 2-5, 13, 16.
THAMES RIVER BASIN 

Hop River near Columbia, Conn.

139

Location. Lat 41°43'39", long 7'2°18'10", on right bank 1,500 ft downstream from abandoned mill and dam at village of Hop River, 2 miles north of Columbia, Tolland County, 

and 4.2 miles upstream from mouth.

Drainage area. 76.2 sq mi.

Records available. September 1932 to September 1955.

Gage_.--Water-stage recorder. Datum of gage is 249.25 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. 23 years, 128 cfs.

Extremes. Maximum discharge during year, 5,570 cfs Aug. 19 (gage height, 15.10 ft, from 

floodmark); minimum, 6.0 cfs Aug. 5 (gage height, 2.63 ft).

1932-55: Maximum discharge, 6,450 cfs Sept. 21, 1938 (gage height, 16.25 ft, from 

floodmarks), by computation of peak flow over dam a quarter of a mile upstream; minimum, 

2.4 cfs Aug. 19, 1939 (gage height, 2.55 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 ice effect, which are good. 

Infrequent regulation at low flow.

Revisions (water years). WSP 781: 1933(M), drainage area. WSP 1111: 1947(m). 

WSP 1301:1935-36(MJ.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

2.6 

2.8 

3.4 

4.0 

5.0

Oct. 1 to Aug. 19 

4.7

137

314

7.0

9.0

11.0

13.0

8OO 

1,510 

2,570 

3,890

3.1 

3.5 

4.0

Aug. 2O to Sept. 3O 

33 5.0

6.0

126 8.0

286

500

1,120

Note. Same as preceding 

table above 8.O ft.

Discharge, In cubic feet per second, water year October 1954 to September 19E5

Day

1

2

3

4

5

6

7

8

9

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.

68

64

55

54

55

71

70

666

65

65

66

66

65

63

65

110

106

89

82

76

73

70

66

66

73

69

69

85

111

178

14T

2,426

78.3

1.03

1.19

Nov.

119

102

785

529

335

264

213

181

162

134

113

108

100

94

91

86

W

89

91

326

400

294

227

204

335

255

208

196

309

274

6,733

224

2.94

3.28

Dec.

198

171

148

123

122

106

99

94

97

163

143

119

109 2'.0

1,1 JO

565

378

492

935

493

356

294

255

246

218

184

174

168

*236

474

423

8,913

288

3.78

4.36

Jan.

304

304

314

25?

218

227

264

187

160

150

133

119

112

102

108

97

90

86

84

76

82

75

70

69

64

63

53

45

55

50

45

4,061

131

1.72

1.98

Feb.

40

39

*38

34

30

30

290

192

149

122

152

ISO" 304

131

109

90

178

204

163

143

131

122

198

236

174

148

137

158

3,902

139

1.82

1.90

Mar.

238

294

210

194

173

277

400

246

218

284

294

264

236

208

*182

227

246

186

170

157

158

346

796

¥3T

356

304

304

236

201

184

170

8,193

264

3.46

5.99

Apr.

158

152

155

304

314

255

264

213

176

160

148

133

129

134

138

131

120

117

112

108

104

*13T

148

129

227

291

434

304

505

?00

6,100

203

2.66

2.97

May

284

227

189

166

186

324 2T8"

198

194

158

140

124

113

1O8

97

89

1O2

91

78

69

59

53

50

49

47

49

58

50

45

414B~

3,701

119

1.56

1.80

June

71

57

49

42

41

37

33

32

30

30

28

46

58

43

35

30

26

23

20

24

*62

~6S 136

53

77

62

50

53

44

35

1,393

46.4

0.6O9

0.68

July

30

26

28

25

21

19

40

30

22

19

18

15

13

13

12

12

12

11

11

11

10

9.0

30~8.4

j.fl

15

13

23

27

17

13

551.4

17.8

0.234

0.27

Aug.

12

10

9.0

970

9.5

13

12

73

33

18

15

116

514

741

348

222

142

226

5,570

2t3SO

899

472

376

297

230

187

162

144

109

?5

11,511.5

371

4.87

£.62

Sept.

104

88

78

70

*63

77

64

55

49

46

43

58

52

48

46

51

51

54

51

63

44

38

34

105

258

125

95

153

144

103

2,290

76.3

1.00

1.12

Calendar year 1954: Max 1,46O Mln 7.9 Mean 141 Cfsm 1.85 In. 25.16

Water year 1954-55; Max 3,57O Mln 8.4 Mean 164 Cfsm 2.15 In. 29.16

Peak discharge (base, 9OO cfs).--Hov. 3 (2:3O p.m.) 1,05O cfs (7.82 ft); Dec. 15 (8:30 a.m.) 1.56O 

cfs [9.13 ft); Dec. 19 (4 a.m.) 1,270 cfs (8.41 ft); Mar. 23 (8 a.m.) 98O cfs (7.65 ft); Aug. 14 

(5 a.m.) 950 cfs (7.50 ft); Aug. 19 (2 p.m.) 5,57O cfs (15.1O ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 4, 7, 8, 23, 26, Jan. 8, 9, 11-23, 25-31, 

Feb. 1-9, 13, 14.
140 THAMES RIVER BASIN

Safford Brook near Woodstock Valley, Conn.

Location. Lat 41°55'35", long 72°03'37", on right bank on downstream side of town road 

bridge, 0.3 mile downstream from Bradford Brook, 0.3 mile 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 1955.

Gage.--Water-stage recorder. Datum of gage is 522.92 ft above mean sea level, datum 01 

1929.

Average discharge.--5 years, 9.73 cfs.

Extremes.--Maximum discharge during year, 1,000 cfs Aug. 19 (gage height, 6.68 ft}; minimum, 

0.35 cfs Aug. 5 (gage height, 1.31 ft).

1950-55: Maximum discharge, that of Aug. 19, 1955; minimum, 0.01 cfs Aug. 30 to 

Sept. 12, Sept. 18-21, 1953; minimum gage height, 1.17 ft Sept. 4-12, 1953.

Remarks.--Records good.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 5 to Sept. 30

1.4 

2.3 

3.5

2.0

0.3

11

2.5 

3.0 

3.5 

4.0 

5.0 

6.0

31

61

103

160

330

610

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

2.9

2.8

2.5

2.3

2.2

2.2

2.1

2.0

1.9

1.9

2.1

2.1

2.0

1.9

1.9

21

T.5

4.5

3.7

3.3

3.0

2.7

2.5

2.4

2.3

2.3

2.5

3.3

10

15

11

129.8

4.19

1.03

1.19

Nov.

*6.3

4.9

60 3o16

12

9.0

7.5

6.5

5.4

4.9

4.9

4.5

4.4

4.2

3.9

3.7

3TT

4.4

30

41

21

*13

13

32

17

12

12

29

18

434.2

14.5

3.55

3.96

Dec.

12

*9.6

b6. 3

b6.0

5.8

5.1

4.5

b4.4

7J7S

15

8.8

b6.5

5.6

33

79

26

*16

94

75

27

16

b!3

b!2

blO

b9.0

b8.0

7.7

9.6

26

46

25

623.2

20.1

4.93

5.68

Jan.

15

21 *T3

13

b9.9

14

b!4

b8.5

b6.5

b5.8

b5.3

b4.7

b4.4

b3.9

3.4

3.3

*3.3

3.0

2.9

2.6

b2.2

b2.2

b2.2

b2.2

b2.2

bE.l

b2.0

bl.6

bl.3

bl.l

b^9

183.5

5.92

1.45

1.67

Feb.

*b0.9 b79"

b.9

b.9

b.9

bl.3

46

TO. 8

b4.9

4.5

20

34

bl7

b6.5

4.5

4.2

b21

20

bio

b8.2

7.2

6.8

22

18

b9.6

b7.0

7.5

11

304.5

10.9

2.67

2.78

Mar.

*24

19

11

7.7

TTT

13

21

b!3

blO

b24

43

27

20

13

11

*22

18

11

b9.6

b8.2

8.2

37

 zz 54

17

15

16

11

b8.8

" < 

8.0

538.4

17.4

4.26

4.91

Apr.

7.7

7.5

8.0

15

13

11

12

9.0

7.O

6.5

6.0

5.4

5.4

5.4

6.0

5.4

4.9

4.7

4.5

4.7

4.4

?75

7.7

6.2

18

20

21

14

36

20

305.9

10.2

2.50

2.79

May

~S.B 12

*7.0

6.5

6.3

8.8

6.5

7.0

7.2

5.4

4.9

4.2

3.9

3.7

3.6

3.3

3.3

3.2

2.7

2.6

2.4

2.2

2.1

2.1

2.4

2.3

2.6

2.3

2.0

1 5-75- . 8

138.1

4.45

1.09

1.26

June

5.8

77?

2.6

2.3

2.3

2.1

2.1

2.1

2.1

2.0

1.8

5.5

4.9

2.7

2.1

1.9

1.6

1.4

T74

*2.0

1.9

1.7

1.5

1.5

1.8

1.8

1.9

2.4

3.0 

1.9

71.4

2.38

0.583

0.65

July

1.5

9.7

19 "4.5

2.4

1.9

1.8

1.6

1.4

1.3

1.4

1.3

1.0

.95

.8

.8

.8

.8

.8

.7

.65

.55 75S-

.8

.9

.9

.75

.7

.8

.7 

.6

62.35

2.01

0.493

0.57

Aug.

0.5

.45

.4

7T

.45

.7

.75

1.0

.75

.6

.6

3.3

32

19

6.3

3.0

*2.4

17

*445 -5T

28

11

13

10

5.8

4.4

4.0

4.0

3.0 

2 .4

3.2

704.40

22.7

5.56

6.41

Sept.

3.6

2.7

2.2

1.9

1.9

3.0

2.1

1.5

1.3

1.1

1.0

1.0

.9

.8

*.75

.7

.65

.6

17I~ .55

1.0

.65

.6

7.9

.U

3.4

2.2

8.0

5.4 

3.3

72.80

2.43

0.596

0.66

Calendar year 1954: Max 189 Mln 0.2 Mean 9.94 Cfsm 2.44 In. 33.09

Water year 1954-55: Max 445 Mln 0.4 Mean 9.78 Cfsm 2.40 In. 32.53

Peak discharge (base, 120 cfs).--Dee. 15 (l a.m.) 154 cfs (3.95 ft); 

(4.71 ft); AugT 19 (6:45 a.m.) 1,OOO cfs (6.68 ft).

Dec. 18 (7 p.m.) 27O cfs

Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
THAMES RIVER BASIN 141

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 State Highway 89, if miles south of Warrenville, 

Windham County, and 85- miles southwest of Ashford.

Drainage area. 29.1 sq mi.

Records available. July 1940 to September 1955.

Gage. Water-stage recorder. Datum of gage is 335.57 ft above mean sea level, datum of 

1929.

Average discharge. 15 years, 49.5 cfs.

Extremes. Maximum discr .rge during year, 5,590 cfs Aug. 19 (gage height, 10.41 ft), from 

rating curve extende above 890 cfs on basis of contracted-opening determination of peak 

flow; minimum, 0.35 cfs Aug. 5 (gage height, 1.26 ft).

1940-1955: Maximum discharge, that of Aug. 19, 1955; minimum, that of Aug. 5, 1955; 

minimum gage height, 0.99 ft Aug. 26-29, 1949.

Flood in September 1938 reached a stage of about 14.5 ft, from floodmarks.

Remarks. Records excellent except those for periods of ice effect or backwater from leaves 

on control, which are good.

Revisions (water years) . WSF 1331: 1941(M) , 1951-53(M) .

Rating tables, water year 1954-55, except periods of ice effect (gage height, in feet, and 

discharge, In cubic feet per second)

Oct. 1 to Jan. 4

Jan. 4 to Feb. 7, 

Aug. 20 to Sept. 30

1.6

1.7

6.4

10

15

2.5 

3.0 

4.0

5.0

69

125

273

441

1.6

1.7

1.8 

2.0 

2.5

3.0 

4.0 

5.0 

6.0

143

298

474

690

1.29

1.3

1.4

1.5 

1.7 

2.0

Feb. 7 to Aug. 19

2.5 

3.0 

4.O 

5.0 

7.0 

9.0

151

299

474

1,090

2,950

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

44

41

38

38

36

34

29

25

25

25

25

25

*24

23

25

84

5S

44

38

34

32

27

24

23

22

22

27

36

58

75

56

1,118

36.1

1.24

1.43

Nov.

43

37

176

117

81

64

53

47

44

40

37

41

37

34

33

 3T 32

34

34

214

126" 217

*87

76

126

88

71

69

123

100

2,314

77.1

2.65

2.96

Dec.

77

65

b57

b51

49

b44

b42

b40IB"

83

64

b50

b46

134

405

185

*117

303

370

17 S

125

b!05

b96

87

b76

b69

b64

66

111

194 

135

3,537

114

3.92

4.52

Jan.

94

111

107

87

b74

89

b92

b69

b62

57

b52

b46

b43

*b41

38

b36

36

34

32

31

26

28

28

30

29

28

28

b24

22

19

17

1,510

48.7

1.67

1.92

Feb.

b!6 bT6"

b!6

b!6

b!6

b!7

b276 ^76

51

46

104

184

b92

b57

47

44

100

98

b72

b61

57

53

105

b!06

*b76

b60

59

76

_

1,997

71.3

2.45

2.55

Mar.

118

118

86

70

b62

97

129

b98

b83

111

141

117

106

87

76

*113

106

80

b70

63

64

162

282

14T

118

106

108

b86

76

71

68

3,213

104

3.57

4.12

Apr.

64

62

68

120

101

88

92

72

61

57

54

49

49

49

52

47

42

40

39

40

37

m

55

46

94

*112

122

888

142

104

2,103

70.1

2.41

£.69

May

78

ST

58

52

57

66

54

56

57

49

42

37

33

33

31

28

29

26

24

21

19

18

17

17

23

21

24

19

16

15

24

1,108

35.7

1.23

1.42

June

35 25-

19

16

17

14

14

14

14

12

11

31

33

20

15

12

9.1

7.5

6.7

*13 

17

18

14

14

21

20

12

16

16

10

496.3

16.5

0.567

0.63

July

7.5

14

61

21

12

9.5

14

9.5

6.7

5.5

4.9

4.0

3.2

2.7

2.3

2.3

2.5

2.3

1.8

1.4

1.3

.95

.8 479"

4.0

3.2

2.7

3.4

3.0

2.0

1.4

215.75

6.96

0.239

0.28

A'lg.

1.1

1.4

1.1

.7

TF

2.7

2.3

5.2

3.2

2.0

1.8

11

117

187

57

25

*17

75

*2,640

T9T

219

116

121

95

66

52

44

41

31

27

33

4,597.3

148

5.09

5.87

Sept.

37

30

25

22

20

33

24

17

14

13

13

14

12

11

11

18

*14

12

13

15

13

11

57 9.8

85

42

28

64

50

35

762.8

25.4

0.873

0.97

Calendar year 1954: Max 1,040 Min 2.0 Mean 61.0 cfsm 2.10 In. 28.45

Water year 1954-55: Max 2,640 Min O.7 Mean 62.9 cfsm 2-16 In. 29.36

Peak discharge (base, 400 efs).--Dec. 15 (l a.m.) 660 cfs (5.93 ft); Dec. 18 (8:30 p.mT) 780 cfs 

(6.29 ft;; Feb. 7 (6 a.m.) 483 cfs (5.03 ft); Aug. 19 (8:30 a.m.) 5,59O cfs (1O.41 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note. Backwater from leaves on control Aug. 21 to Sept. 24.
14g THAMES RIVER BASIN

Mansfield Hollow Reservoir at Mansfield Hollow, Conn,

Location. Lat 41 0 45'22", loag 72°10'57", on Natohaug River at Mansfield Follow, 0.2 mile 

downstream from Mount Hope River and 3j miles northeast of Willimantio, Windham County.

Drainage area.--159 sq mi.

Records available.--March 1952 to September 1955.

Gage. Water-stage recorder. Datum of gage is at mean sea level, datum of 1929 (levels by 

Corps of Engineers).

Remarks. Reservoir completed in March 1952 for flood control, has usable capacity of 

2~72FO,000,000 cu ft.

Cooperation.--Records furnished by Corps of Engineers.

Month-end elevation and contents, water

Date

Oct. 31. ..................

Jan. 31.. .................

Mar. 31... ................

Water year 1955.. .......

Elevation 

(feet)t

Contents 

(millions of 

cubic feet)

1.0

.6

_

Change in contents 

(millions of 

cubic feet)

_

+21.9

-19.2

0

-43.3

+4.5

 ear October 1954 to September 1955

t Elevation at 12 p.m.
THAMES RIVER BASIN 

Natchaug River at Willimantio, Conn.

143

Location. Lat 41°43 1 14 n , long 72"11'52", on right bank 200 ft downstream from Few York, 

New Haven & Hartford Railroad bridge, 500 ft upstream from bridge on U. S. Highway 6, 

1 mile northeast of Willimantio, Windham County, 1.7 miles upstream from mouth and 

4 miles downstream from Mount Hope River.

Drainage area. 169 sq mi.

Records available. October 1930 to September 1955.

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. 25 years, 302 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 3,250 cfs Aug. 27 (gage height, 8.58 ft); minimum, 6.2 efs Aug. 7 (gage height, 2.04 ft); minimum daily, 6.9 cfs Aug. 3, 4.

1930-55: Maximum discharge, 32,000 cfs Sept. 21, 1938 (gage height, 16.39 ft, from 

floodmarks), by computation of peak flow over dam 2 miles upstream from station; minimum, about 0.3 cfs Aug. 6, 1937; minimum daily, 2.3 ofs Sept. 11, 12, 1943.

Remarks. Records excellent. City of Willimantic diverts an average of about 1,000,000 

gal of water a day for municipal supply from reservoir 2 miles upstream. Operation of 

water wheels at this location cause diurnal fluctuation at low flow. Since March 1952, 

flow regulated by Mansfield Hollow Reservoir (see preceding page).

Revisions (water years). WSP 1301: 1934-35(M), 1937(M).

Rating table, water year 1954-55, except periods of Ice effect 

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

2.0

2.1

2.2 

2.6

3.0 

5.0 

7.0 

9.0

212

1,130

2,210

3,590

Discharge, in cubic feet per second, water year October 1954 to September 1955

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.

199

191

177

174

164

154

145

130

127

124

132

136

130

124

132

320

407

265

210

181

167

154

142

132

130

127

127

171

151

513 T50"

5,626

181

+8.2

Nov.

53

575

712

1,010

866

560

426

355

312

61

267

462

245

225

217

206

202

199

202

460

1,010

986

689

513

651

666

522

450

570

n-in IO 1

14,346

478

-6.4

Dec.

570

464

384

312

336

265

245 2^8"

269

418

441

326

265

350

516

1,730

1,430

1,030

1,380

2,010

1,640

785

b650

641

564

452

456

*438

578

830

1,080

21,103

681

+5.0

Jan.

830

7TS

808

672

542

506

605

b490

420

402

335

299

312

b260

239

239

231

b200

202

188

b!50

174

161

171

161

164

b!55

b!40

137

114

109

10,134

327

-7.2

Feb.

101

99

b96

b94

b£l

107

532

695

344

282

308

808

b530~

317

270

b220

348

569

466

384

348

308

380

636

492

394

348

394

9,961

356

+0.7

Mar.

479

718

574

461

580

456

740

592

484

528

695

740

672

*574

488

502

650

538

438

394

389

538

1,200

1,130

855

695

650

569

484

438

412

18,463

596

0

Apr.

384

371

362

551

646

533

528

470

389

348

326

299

286

290

294

290

262

250

239

239

227

TTO

358

290

*412

528

718

5BT '672

718

12,132

404

+1.7

Hay

538

40T

348

304

312

502

380

330

389

312

270

239

212

202

194

177

194

174

155

142

131

120

112

112

123

125

171

137

117

TC9~ 104

7,142

230

-2.2

June

250

202

151

125

123

114

104

104

100

96

94

146

262

177

131

107

92

52" 80

85

86

*123

82

115

132

124

111

117

142

118

3,775

126

-0.2

July

95

84

90

112

98

112

TTD" 119

ill

109

104

83

89

85

85

85

86

85

84

47

38

67

8.8

37

71

27

47

36

52

17

41

2,314.8

74.7

-0.1

Arg.

29

26

6.9

T^

55

8.1

22

112

65

42

34

161

247

121

35

59

E46

355

782

388

48

551

1,740

2,660

2,E50

2,SOO

3, CIO

3,030

2, £56

2,300

1.C80

25, S19.9

836

+18.1

Sept.

873

FTS

294

242

208

242

231

188

161

145

139

139

131

117

112

123

*123

112

104

TO

220

167

151

268

509

716

317

331

448

232

7,734

258

-16.7

Adjusted for change In contents In Mansfield Hollow Reservoir

Mean 

Cfsm 

In.

189 

1.12 

1.29

472 

2.7£ 

3.1]

Calendar year 1954: 

Water year 1954-55:

686 

4.06 

4.68

320 

1.89 

2.18

357 

2.11 

2.20

596 

3.53 

4.07

406 

2.40 

2.68

228 

1.35

1.56

Observed

Max 2,010 Mln 5.9 Mean 356 

Max 3,030 Mln 6.9 Mean 380

126

0.746 

0.83

74.6 

0.441 

0.51

854 

5.05 

5.82

241

1.43 

1.60

Adjusted

Mean 357 Cfsm 2.11 In. 28.67 

Mean 380 Cfsm 2.25 In. 30.53

* Discharge measurement made on this day. 

t Change In contents, equivalent In cubic feet per second. In Mansfield Hollow ReserveIr, furnished 

by Corps of Engineers.

b Stage-discharge relation affected by Ice.
144 THAMES RIVER BASIN

Shetucket River near Willimantic, Conn.

Location.--Lat 41°42'0l", long 72°10i57", on right bank at downstream side of Bingham 

Bridge, 500 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, and ij- miles southeast of Willimantic, Windham County.

Drainage area.--401 sq mi.

Records available. April 1904 to December 1905 (monthly discharge only in WSP 1301), 

October 1919 to September 1921 and September 1928 to September 1933 (published as 

"at South Windham"), October 1933 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 131.40 ft above mean sea level, datum of

"1929 (levels by Corps of Engineers). Apr. 4, 1904, to Dec. 31, 1905, chain gage at 

about same site and about the same datum. October 1919 to Sept. 30, 1921, and 

Sept. 1, 1928, to Sept. 30, 1933, water-stage recorder at site ij miles downstream 

at different datum.

Average discharge'.--30 years (1904-5, 1919-21, 1928-55), 702 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 21,300 cfs Aug. 19 (gage height, 17.36 ft); 

minimum, 68 cfs Aug. 3 (gage height, 1.58 ft); minimum daily, 71 cfs Aug. 3, 4.

1904-5; 1919-21; 1928-55: Maximum discharge, 52,200 cfs 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; mirimum, 15 cfs 

Aug. 29, 1949 (gage height, 1.34 ft); minimum daily, 19 cfs Aug. 22, Cct. 24, 1949; 

minimum gage height, 1.G2 ft Oct. 20, 1935.

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

are good. Flow regulated by mills on Willimantic River, on Natchaug River by pumping for municipal supply of city of Willimantic, and by Mansfield Hollow Reservoir 

(see p. 142 ).

Revisions (water years). WSP 781; 1934(m). WSP 801: 1935. WSP 1201: 1905(M), 

192U-21, IQ^l-SS, 1934-35(M), 1937(M).

Rating table, water year 1954-55 (gage height, in feet, and discharse, 

in cubic feet per second)

2.0 

2.5 

3.0 

4.0

71

111

159

318

520

1,060

10.0

12.0

14.0

2,490 

4,550 

7,150 

1O.20O 

14.OOO

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

453

440

400

380

381

370

366

347

330

325

343

350

344

332

327

635

720

535

446

412

387

364

339

325

517

323

324

4O6

414

970

631

13,036

421

+8.2

Nov.

384

820

1,820

2.250

1,650

1,180

910

770

710

551

a560

aSOO

a600

a550

a510

a490

a474

474

474

1,085

1,970

1,790

1,270

1,030

1,400

1,540

1,060

940

1,270

1,480

50,590

1,013

-6.4

Dec.

1,150

940

820

685

705

620

545

530

565

850

850

670

620

842

2,640

*3,230

2,350

2,050

5.640

5,450

2,580

1,620

1,370

1,340

1,210

1,000

1,000

970

1,210

1,900

2,250

44,162

1,425

+5.0

Jan.

1.680

1,480

1,680

1,400

1,150

1.O9O

1,300

1,030

910

880

760

685

685

550

535

520

520

466

474

449

390

413

392

406

396

402

385

325

340

311

286

22,290

719

-7.2

Feb.

268

268

262

268

279

279

1,250

1,340

765

605

725

1.650

1,030

760

645

525

838

1,150

940

795

740

705

858

1,540

1,030

820

755

880

_

21,770

778

+0.7

Mar.

1,060

1,580

1,240

1,030

880

1,060

1,760

1,270

1,O9O

1,210

1,510

1,540

1,370

1,240

*1,060

1,120

1,440

1,150

970

880

880

1,290

2.940

2,410

1,820

1,510

1,510

1,270

1,090

1,000

940

41,120

1,526

0

Apr.

880

850

820

al,300

al,510

al,180

al,370

al,120

a910

820

795

740

705

720

74O

720

635

620

605

590

570

660

820

695

al.oOo

al,340

al.860

*1,150

1,860

1,860

29,445

982

+1.7

May

1.570

1,090

910

880

849

1,340

1,030

910

1,000

8LO

720

645

565

545

506

490

550

489

431

403

561

329

312

316

354

370

407

557

307

282

295

19,233

620

-2.2

June

578

496

392

324

300

282

281

259

252

244

236

324

515

394

516

259

252

201

185

194

261

*502

310

502

566

340

290

327

522

266

9,548

518

-0.2

July

219

198

219

269

222

224

290

248

210

2O1

195

172

178

174

167

169

166

165

175

144

115

158

79

106

178

120

128

126

186

110

118

5,407

174

-0.1

Aug.

99

94

71

71

126

88

79

289

215

152

127

36O

1,290

2,410

1,300

695

640

894

9,150

* 15. OOP

5,890

2,240

2,370

5,750

3,610

3,460

5,450

5,480

5,290

2,760

1,500

65,528

2,114

+18.1

Sept.

1.540

952

635

535

488

610

595

488

424

340

581

461

456

400

558

569

547

536

518

412

525

424

358

548

1,180

1,230

705

760

946

620

17,521

584

-16.7

Adjusted for change in contents in Mansfield Hollow Reservoir

Mean 

Cf sm 

In.

429 

1.07 

1.25

1,00" 

2.5] 

2.8C

Calendar year 1954: 

Water year 1954-55:

1,430 

3.57 

4.12

712 

1.78 

2.05

779 

1.94 

2.02

1,526 

5.51

3.82

984 

2.45 

2.73

Observed

618 

] .54 

1.76

Max 4,550 Min 68 Mean 787 

Max 15,000 Min 71 Mean 875

518 

0.795 

0.88

174 

0.454 

0.50

2,152 

5.32 

6.15

567 

1.41 

1.57

Adjusted

Mean 788 Cfsm 1.97 In. 26.69 

Mean 875 Cfsm 2.18 In. 29.65

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Mansfield Hollow reservoir, furnished by Corps of Engineers.

a No gage-height record; discharge estimated on basis of weather records, engineers' notes, recorded range In stage and summation of records from three headwater streams.
THAMES RIVER BASIN 145

Little River near Hanover, Conn.

Location. --La t 41°40'18", long 72°03'10", in Windham County, on left bank 800 ft upstream 

from bridge on town road, 0.7 mile downstream from Peck Brook, 2.3 miles northeast of 

Hanover, New London County, and 6.5 miles upstream from mouth.

Drainage area. --29. 8 sq mi.

Records available. July 1951 to September 1955.

Gage .--Water-stage recorder. Datum of gage is 221.19 ft above mean sea level, datum of ~~

Extremes . --Maximum discharge during year, 1,400 cfs Aug. 19 (gage height, 6.48 ft), from 

rating curve extended above 820 cfs by logarithmic plotting; minimum, 9.4 cfs July 23, 

24 (gage height, 1.21 ft).

1951-55: Maximum discharge, that of Aug. 19, 1955; minimum, 6.6 cfs Sept. 10, 11, 

1953 (gage height, 1.03 ft).

Remarks . --Records good.

Rating tables, water year 1954-55, except periods of ice effect (gagi

height, in feet, and discharge, in

Oct. 1 to Dec. 18, 

June 13 to Sept. 30

1.2 

1.4 

1.7

9.0

18

39

2.0 

2.5

Note. Same as following 

table above 2.5 ft.

cubic feet per 

Dec. 19 to

1.4 

1.7 

2.0 

2.5

45

78

156

ond)

3.0 255

4.0 515

5.0 830

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

26

25

24

23

23

22

22

21

20

20

20

20

*19

19

19

86

59

41

33

30

28

26

24

23

23

22

22

33

54

102 

86

1,015

32.7

1.10

1.27

Nov.

58

46

187

171

106

83

66

56

50

44

42

4O

38

37

35

34

33

33

33

112

193

134

86

73

140

99

76

68

118

*107

2,399

80.0

2.68

2.99

Dee.

79

66

55

b48

48

44

b41

b42

42

71

59

48

44

87

405

201

125

202

470

203

149

124

b!04

106

96

b78

78

*79

124

192

3,718

120

4.03

4.65

Jan.

129

134

149

114

93

96

112

85

75

71

65

b59

59

b52

b52

b48 b46'

*b45

b42

b40

b36

37

b36

37

36

36

36

b32

b34

b34

1,949

62.9

2.11

2.43

Feb.

b28

b28

b29

b29

b29

29

190

b84

b60

51

97

292

b!22

b85

64

b56

122

122

90

77

*71

67

90

103

79

69

67

79

-

2,309

82.5

2.77

2.88

Mar.

106

127

90

86

79

125

b!95

bl!2

96

110

122

107

97

85

77

*96

103

80

74

69

70

159

300

156

127

114

125

97

84

78 

72

3,418

110

3.69

4.25

Apr.

69

67

68

118

104

86

89

77

68

64

60

57

56

57

60

58

54

52

50

50

48

63

65

57

83

103

125

94

187

134

2,323

77.4

2.60

2.90

May

96

80

*70

54

70

133

90

84

112

83

71

64

58

54

52

48

59

52

46

42

40

37

36

36

44

45

98

60

49

44 

56

1,973

63.6

2.13

2.46

June

88

64

54

46

47

42

38

38

37

37

34

74

148

55

42

34

30

27

24

43

*37

52

36

33

49

41

33

30

33

27

1,373

45.8

1.54

1.72

July

23

22

30

24

22

21

101

49

31

25

22

25

22

16

15

14

14

14

14

13

12

11

9.8

12

18

14

12

14

14

12 

33

678.8

21.9

0.735

0.85

Pug.

28

19

14

11

12

11

11

24

19

13

11

39

203

116

50

30

22

74

819

770

247

124

209

188

104

75

69

106

66

50 

64

3,596

116

3.89

4.48

Sept.

76

57

46

41

36

41

34

29

27

25

25

26

24

22

22

*23

22

20

20

34

30

22

20

83

222

84

51

118

106

66

1,452

48.4

1.62

1.81

Calendar year 1954: Max 680 Mln 7.5 Mean 63.7 Cfsm 2.14 In. 29.02

Water year 1954-55: Max 819 Mln 9.8 Mean 71. B Cfsm 2.41 In. 32.68

eak discharge (has

75 cfs (4.21 ft); 

* Discharge measurement mad' 

b Stage-discharge relation affected by i

400 cfs).--Dec. 15 (10 a.m. to 12 m.) 470 cfs (3.83 ft); Dec 

19 (8 to 9 p.m.) 1,400 cfs (6.48 ft), 

this day.

19 (6 to7 a.m. )
146 THAMES RIVER BASIN

Quinebaug River at Westville, Mass.

Location. Lat 42 C 04'23", long 72°04'28", on right bank 350 ft upstream from highway 

bridge, 0.45 mile downstream from Breakneck Brook, 0.6 mile west of We-stville, Worcester County, and If miles west of Southbridge.

Drainage area. 93.8 sq mi.

Records available. July 1939 to September 1955.

Gage. Water-stage recorder. Datum of gage is 537.66 ft above mean sea level, unadjusted 

(levels by Corps of Engineers).

Average discharge. 16 years, 162 cfs.

Extremes. Maximum discharge during year, 17,500 cfs Aug. 19 (gage height, 16.11 ft, from 

floodmarks), from rating curve extended above 1,300 cfs on basis of slope-area determination of peak flow; minimum daily, 26 cfs July 25, 26, 31.

1939-55: Maximum discharge, that of Aug. 19, 1955; minimum daily, 2.2 cfs June 26, 

1949.

Flood in September 1938 reached a discharge of 8,400 cfs, by slope-area determination.

Remarks. Records excellent except those for periods of ice effect or doubtful or no gageheight record, which are fair. Medium and low flows regulated by mills and reservoirs 

above station. August flood flow affected by dam failures and by reservoirs.

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Aug. 19 Aug. 20 to Sept. 30

2.2 

2.5 

3.0 

3.5 

4.0 

5.0

100

170

266

560

6.0

7.0

9.0

11.0

13.0

15.0

950

1,490

3,140

5,640

9,000

13,800

2.7 80

3.1 138

3.5 211

4.0 321

5.0 625

6.0 

7.0

9.0

11.0

13.0

1,060 

1,620 

3,260 

5,640 

9,OCO

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

In.

Oct.

154

157

146

145

177

167

187

142

120

120

121

122

152

161

168

184

196

177

154

139

150

142

87

90

116

104

108

*116

136

171 

201

4,510

145

1.55

1.79

Nov.

192

185

335

430

409

363

313

288

271

224

203

170

150

157

156

144

145

148

151

262

380

403

354

313

319

319

283

259

332

386

8,044

268

2.86

3.19

Dec.

368

319

246

211

205

200

184

*I75

178

' 226

220

205

192

203

436

503

464

493

732

744

640

533

474

406

313

280

264

257

313

418 

474

10,876

351

3.74

4.31

Jan.

449

427

424

391

*349

324

310

260

245

245

230

210

184

165

160

157

152

140

135

125

115

115

115

115

115

110

105

95

100

ii 

96

6,257

202

2.15

2.48

Feb.

92

88

84

80

Ii

80

190

180

170

160

145

20O

195

190

160

142

157

151

145

152

156

*152

187

£28

196

162

167

184

-

------

4,269

152

1.62

1.69

Mar.

228

300

278

230

189

201

225

215

211

228

300

363

365

340

306

311

335

338

303

276

259

293

*480

510

471

421

394

346

308

283

9,571

309

3.29

3.79

Apr.

246

238

232

257

280

285

295

280

257

236

218

205

196

194

180

165

165

177

178

172

170

200

216

189

244

300

403

*388

380

386

7,332

244

2.60

2.91

May

365

321

278

248

234

234

234

226

222

205

187

170

146

140

136

136

151

170

132

108

86

107

*118

118

133

135

101

80

72

82

5,175

167

1.78

2.05

Jane

131

JL65

113

88

98

104

*101

98

94

73

58

63

98

12O

118

105

78

56

54

66

73

77

70

60

51

47

47

51

69

21

2,453

81.8

0.872

0.97

July

43

55

100

96

74

56

47

42

38

36

35

43

60

50

44

41

38

40

*42

42

4O

38

34

31

26

26

36

41

30

28 

26

1,378

44.5

0.474

0.55

Aug.

34

43

45

45

41

33

47

65

63

54

48

99

252

374

433

330

228

605

*11 . 400

8,830

3,800

1,870

*1 , 230

999

774

611

499

436

390

365 

344

34,387

1,1O9

11.8

13.63

Sept.

330

310

285

265

230

320

280

220

155

110

110

115

110

105

95

93

90

100

125

105

130

125

105

104

146

141

125

124

122

116

4,791

160

1.71

1.90

Calendar year 1354: Max 1,080 Min 9.0 Mean 207 Cfsm 2.21 In. 29.95

Water year 1954-55: Max 11,400 Min 26 Mean 271 Cfsm 2.89 In. 39.26

* Discharge measurement made on this day.

Note. Doubtful or no gage-height record Aug. 25 to Sept. 23; discharge estimated on basis of 

1 discharge measurement, weather records, appearance of recorder graph, water-surface determination 

by levels on Sept. 2, and records for station at Quinebaug, Conn. Stage-discharge relation affected 

by ice Dec. 26, Jan. 7-12, 14, 15, Jan. 18 to Feb. 14, Mar. 7, 8. Discharge in cubic feet per second 

per square mile and runoff in inches may not represent natural flow because of regulation.
THAMES RIVER BASIN 147

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 highway bridge on State Highway 197, 0.25 mile downstream from 

Massachusetts-Connecticut State line, 7.8 miles upstream from French River, and at 

mile 46.

Drainage area. 157 sq mi.

Records available. September 1931 to September 1955.

Gage. Water-stage recorder. Datum of gage is 341.52 ft above mean sea level, datum of 

 1929.

Average discharge. 24 years, 278 cfs.

Extremes. Maximum discharge during year, 49,300 cfs Aug. 19 (gage height, 18.95 ft, from 

floodmarks), from rating curve extended above 5,100 cfs on basis of slope-area determination of peak flow; minimum, about 8 ofs July 24; minimum daily, 10 cfs Jily 31.

1931-55: Maximum discharge, that of Aug. 19, 1955; minimum, about 1 cfs Sept. 9, 

1943, July 12, 1949, Sept. 17, 18, 1950, July 9, 1951; minimum daily, 2 cfs Aug. 21, 

28, Sept. 4, 1932; minimum gage height, 1.74 ft Aug. 20, 1940.

Revisions. The maximum discharge for the water year 1938 has been revise-} to 19,000 

cfs Sept. 21 (gage height, 16.21 ft, from floodmark), superseding figure published in 

WSP 851.

Remarks. Records good except those for periods of backwater from ice or aquatic vegetation, which are fair. Flow regulated by mills upstream.

Revisions (water years).--WSP 851: 1936(M). WSP 1201: 1939-43, 1947, 1949.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

244

242

245

293

246

273

252

249

271

220

265

210

214

246

284

375

359

*337

309

268

251

245

153

171

244

183

183

204

241

425 

241

7,943

256

1.63

1.88

Nov.

280

*309

685

815

707

605

531

476

440

377

337

316

283

279

304

256

237

263

248

507

785

761

*635

531

617

587

504

465

629

665

14,434

481

3.06

3.41

Dec.

*617

532

397

359

355

350

323

308

322

404

392

350

340

375

860

848

*755

930

1.560

1,170

978

b800

743

671

553

482

450

435

575

791 

841

18,666

602

3.83

4.42

Jan.

755

725

*725

647

581

553

531

436

410

426

385

368

298

247

290

256

267

251

b205

b210

6200

169

194

231

205

183

186

225

b!40

b210 

b!90

10,699

345

2.20

2.54

Feb.

*b!30

b!40

b!50

b!40

b!25

b!35

b500

395

334

270

315

409

323

355

260

*232

294

291

255

272

288

264

326

399

327

274

279

327

-

7,809

279

1.78

1.85

Mar.

*425

536

465

392

555

555

425

382

364

420

587

665

641

581

509

564

575

536

465

440

425

*561

880

834

767

685

659

570

504

465 

430

16,438

530

3.38

3.90

Apr.

*401

387

582

455

455

455

465

440

587

568

355

352

508

309

307

244

272

306

276

276

268

292

350

304

450

504

623

587

623

587

11,728

391

£.49

2.78

Hay

548

498

430

*382

364

396

368

564

559

527

507

279

251

197

220

275

208

228

252

192

118

117

216

180

*165

187

169

106

112

125

204

8,120

262

1.67

1.92

June

*153

206

188

116

139

196

143

143

154

134

98

85

198

162

186

161

139

103

.34 *142

102

105

105

108

71

56

93

77

71

*70

3,718

124

O.790

0.88

July

71

58

149

144

118

98

86

90

69

26

115

53

54

78

*56

41

45

78

54

57

49

64

60

14

56

39

35

40

72

69

10

2,046

66.0

0.420

0.48

Aug.

16

49

49

49

71

43

54

114

86

90

80

115

334

504

520

*406

299

1,260

* 26. 500

14,600

*5,050

2,650

1,890

1,490

1,100

869

713

602 '525

485 

470

61,103

1,971

12.6

14.53

Sept.

470

455

410

415

322

510

410

330

236

174

178

181

178

163

*149

146

152

146

200

152

204

204

146

155

256

224

181

208

200

178

7,255

242

1.54

1.72

Calendar year 1954: Max 2,800 Min 4 Mean 361 Cfsm 2.30 In. 31.19

Water year 1954-55: Max 26,500 Min 10 Mean 466 Cfsm 2.97 In. 40.31

Peak discharge (base. 1.OOO cfs). Dec. 18 (8 p.m.) 1,500 cfs (4.95 ft); Aug. 19 (3 p.m.) 49,300 

cfs (18.96 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--Backwater from aquatic vegetation June 16 to Aug. 16.
148 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 1955.

Gage. Water-stage recorder. Datum of gage is 457.00 ft above mean sea level, unadjusted 

[levels by Corps of Engineers).

Average discharge.--16 years, 47.2 cfs.

Extremes. Maximum discharge during year, 8,340 cfs Aug. 19 (gage height, 15.53 ft), from 

rating curve extended above 1,200 cfs on basis of computation of peak flow over dam; 

minimum, 0.5 cfs Aug. 1; minimum daily, 1.0 cfs Aug. 6, 9.

1939- C 5: Maximum discharge, that of Aug. 19, 1955; minimum, 0.5 cfs Nov. 28, 29, 

1949, July 30, 1950, Aug. 1, 1955; minimum daily, 0.5 cfs Nov. 28, 1949.

Remarks.--Records good. Flow regulated by reservoirs and mill above station. 

Revisions (water years).--WSP 1201: 1940, 1948.

Rating table, water year 1954-55 (gage height, in feet, and 

discharge, in cubic feet per second)

2.0 1.0

2.1 2.0

2.2 3.4

2.4 7.3

2.6 14

2.8 23

3.0 38

3.2 61

3.5 108

4.0 197

5.0 419

6.0 685

8.0 1,530

10.0 2,750

13.0 5,300

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

Z1

Z2

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

61

57

20

44

54

57

43

36

30

2.7

39

56

29

17

57

31

88

76

60

58

58

56

29

3.2

*36

56

22

3.6

28

64 

75

1,346.5

43.4

1.57

1.81

Nov.

81

63

132

223

177

128

96

93

74

64

60

58

58

30

46

51

49

49

49

51

144

191

140

110

108

111

99

80

114

126

2,855

95.2

3.44

3.83

Dec .

114

96

80

67

53

60

53

52

52

*56

72

64

58

65

197

213

149

161

357

275

191

144

120

106

100

90

87

79

98

154 

185

3,648

11 8

4.26

4.90

Jan.

158

138

133

122

nos

96

96

82

72

64

61

60

58

57

56

53

49

45

37

21

14

15

15

32

42

39

25

29

32

17 

12

1,835

59.2

2.14

2.46

Feb.

3.2

8.1

19

45

11

14

39

48

56

60

60

74

91

64

60

57

57

56

56

56

56

56

57

58

58

60

60

60

-

~-~----

1,399.3

50.0

1.81

1.88

Mar.

61

108

105

88

71

67

75

74

66

67

102

140

140

122

102

100

112

102

87

74

67

93

*179

177

151

133

128

106

91

82 

74

3,144

101

3.65

4.22

Apr.

71

67

59

85

82

82

85

80

67

48

64

58

57

57

57

57

54

54

26

30

54

29

32

57

58

98

122

111

117

114

2,032

67.7

2.44

2.73

May

99

79

*63

58

58

58

63

64

61

61

60

57

56

18

2.7

30

53

51

24

2.1

15

18

37

*19

2.9

2.4

37

56

20

3.6

1,230.4

39.7

1.43

1.65

June

39

54

24

2.1

1.9

33

53

16

2.2

1.5

l.E

2.3

39

38

2.1

*2.0

36

20

1.3

2.1

22

11

17

15

36

1.4

1.5

1.5

33

19

528.4

17.6

0.635

0.71

July

1.4

£.7

2.6

1.8

39

56

21

1.8

1.3

3E

2C

1.3

1.5

1.5

1.4

1.6

1.6 ie

1.3

1.6

1.2

1.1

1.3

1.2

28

*27

1.1

1.5

1.3

1.3 

1.1

28C.5

9.05

0.327

0.38

Aug.

1.2

1.4

28

17

1.1

1.0

1.7

1.7

1.0

1.1

1.1

31

32

2.3

42

61

58

99

 5,180

2,360

*647

353

262

236

197

156

130

80

61

54 

105

10,202.6

329

11.9

13.70

Sept.

92

79

51

25

27

*57

82

67

56

62

75

58

46

42

41

40

22

13

39

48

20

31

53

28

58

58

35

62

57

56

1,485

49.5

1.79

1.99

Calendar year 1954 : Max 1,030 Min 1.0 Mean 68.4 Cfsm 2.47 In. 33.53

Water year 1954-55 : Max 5,180 Min 1.0 Mean 82.2 Cfsm 2.97 In. 40.26

* Discharge measurement made on this day.
THAMES RIVER BASIN 

French River at Webster, Mass.

149

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 ml.

Records available. December 1948 to September 1955.

Gage.--Water-stage recorder. Datum of gage Is 406.74 ft above mean sea level, datum of 

1929.

Average discharge.--6 years (1949-55), 171 cfs.

Extremes.--Maximum discharge during year, 14,400 cfs Aug. 19 (gage height, 26.C5 ft, from 

floodmarks), from rating curve extended above 2,400 cfs on basis of computation of peak 

flow over dam; minimum daily, 7.2 cfs July 31.

1948-55: Maximum discharge, that of Aug. 19, 1955; minimum daily, 2.9 cfs Sept. 30, 

1951.

Flood of Mar. 19, 1936, reached a discharge of 4,700 cfs, by computation of flow 

over dam about half a mile upstream.

Remarks.--Records good except 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 smaller reservoirs above station.

Rating tables, water year 1954-55 (gage height, in feet, and

discharge, In cubic feet per second)

(Shifting-control method used Dec. 19; backwatej- from 

debris Aug. 21 to Sept. 30)

Oct. 1 to Dec. 19 Dec. 20 to Sept. 3O

107

315

571

870

3.98

4.0

7.2

8.2

20

46

107

204

6.0

7.0

8.0

10.0

14.0

18.0

341

621

915

1,630

3,500

6,200

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19 

20

21

22

23

24

25

26

27

26

29

30

31

Total

Mean

Cfsm

In.

Oct.

214

195

159

142

121

108

131

112

118

11

101

119

122

97

139

248

264

220

184 

138

120

134

117

64

102

115

124

*107

103

135 

172

4,326

140

1.64

1.89

Nov.

178

174

266

449

456

374

306

273

234

202

169

187

176

165

155

159

148

163

167 

218

317

438

394

324

293

308

291

278

317

330

7,931

264

3.09

3.46

Dec.

339

313

269

225

207

200

184

*165

155

191

214

202

182

191

396

597

500

423

742 

851

657

503

391

366

333

305

296

277

2BB

369

481

10,792

34B

4. OB

4.71

Jan.

489

447

422

397

*358

330

313

280

250

218

*207

202

197

187

172

167

167

162

156 

147

127

99

104

108

119

129

124

110

113

94

103

6,498

210

2.46

2.83

Feb.

87

81

79

93

76

69

*194

171

146

143

166

242

197

156

150

143

181

187

167 

159

167

163

176

209

202

176

172

160

-

4,334

155

1.B2

1.B9

Mar.

209

269

299

266

218

204

228

218

199

202

258

352

397

375

319

299

321

310

272 

231

215

247

*405

487

459

414

391

358

307

274

250

9,253

298

3.49

4.03

Apr.

231

218

209

253

258

253

261

247

204

180

176

178

170

165

163

155

155

165

161 

136

141

150

121

155

192

239

321

*344

352

347

6,302

210

2.46

2.75

May

307

258

212

185

172

176

180

197

180

165

157

155

153

121

96

100

110

117

117 

96

27

33

*82

103

80

70

65

60

86

53

64

4,017

130

1.52

1.75

June

78

95

96

39

45

79

85

*90

70

66

12.

18

76

86

76

66

62

14

19 

69

65

64

63

62

13

14

66

58

56

57

1,761

58.7

0.686

0.77

July

39

18

12

21

48

90

83

47

45

47

90

64

62

46

41

13

9.6

28

*48 

43

33

26

6.6

7.6

58

61

45

41

41

*8 , 6

J_._2

1,231.6

39.7

0.465

0.54

Aug.

39

42

29

24

44

9^6

14

50

44

49

36

43

48

96

97

131

125

222

*6.170 

a5,640

2,180

*1,290

937

782

730

720

618

540

454

436

422

22,071.6

712

8.35

9.62

Sept.

517

a450

a320

a210

a!90

*a260

288

228

178

151

140

138

126

120

101

94

88

56

62 

100

128

109

107

103

115

138

125

123

126

132

5,023

167

1.96

2.19

Calendar year 1954 : Max 2,000 Min 22 Mean 20S Cfsm 2.44 In. 33.16

Water year 1954-55 : Max 6,170 Min 7.2 Mean 229 Cfsm 2.6S In. 36.43

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather r 

and records for Qulnebaug River at Westville and Little River at Buffumvllle.

Note.--Discharge in cubic feet per second per square mile and runoff in Inches may not repr 

natural flow because of regulation.
150 THAMES RIVER BASIN

Quinebaug River at Futnam, Conn.

Location.--Lat 41°54'34", long 71°54'48", on left bank at Putnam, Windham County, 0.15 mile 

downstream from Little River, 0.3 mile upstream from New York, New Haven and Hartford 

Railroad bridge, 2.8 miles downstream from French River, and at mile 35.7.

Drainage area. 331 sq ml.

Records available.--October 1929 to September 1955. Prior to December 1929 monthly discharge only, published In WSP 1301.

Gage. --Water-stage recorder. Datum of gage is 216.76 ft above mean sea level, datum of 

1929.

Average discharge.--26 years, 570 cfs.

Extremes. Maximum discharge during year, 48,000 cfs Aug. 19 (gage height, 26.5 ft, from 

floodmarks) on basis of slope-area determination of peak flow; minimum, 13 cfs July 20 

(gage height, 1.61 ft); minimum dally, 37 cfs July 17.

1929-55: Maximum discharge that of Aug. 19, 1955; minimum, 8.0 cfs Aug. 9, 1953 

(gage height, 1.54 ft); minimum dally, 11 cfs Oct. 5, 12, 1930.

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

poor. City of Putnam diverts an average of less than 1 mgd 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) . WSF 781: Drainage area, 1934(M). WSP 1301: 1931-33(M) , 1935(M).

Rating tables, water year 1954-55 (gage height. In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Aug. 19 Aug. 2O to Sept. 30

1.8 

2.1 

2.5 

3.0 

4.0 

5.0

3O

72

155

296

690

1,230

7.0

10.0

14.0

18.0

22.0

2,560

5,400

10,800

18,000

28,000

3.4 288

4.0 465

5.0 87O

7.0 2,080

10.0 4,780

14.0 10,100

18.0 18,000

22.0 20,OOO

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4 

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

636 

534

448

592 

472

481

438

482

356

510

432

311 

405

404

450

891

848

*754

628

545

413

452

365 

328

389

376

350

395

469

715

15,395

497

1.50

1.73

Nov.

618 

665

1,210

1,780 

1,650

1,380

1,140

1,020

915

765

715

665

640

560

595

557

552

540

544

898

1,470

1,650

1,440 

1,170

1,230

1,230

1,O8O

1,000

1,230

1,380

30,289

1,010

3.05

3.40

Dec.

1,260 

1,140

940

790 

740

715

675

640

626

805

815

745 

715

721

1,650

1,960

1,710

1,700

3.040

2,880

*2,270

1,780

1,470 

1,380

1,200

1,050

1,020

915

1,170

1,560

1,780

39,857

1,286

3.89

4.48

Jan.

1,650 

1.53O

1,530

1,380 

1,260

1,170

1,170

990

915

865

790

740 

690

591

536

544

552

522

478

453

446

388

378 

409

418

395

398

387

339

313

357

22,584

729

2.20

2.54

Feb.

320 

323

310

252 

298

254

1,010

915

715

604

681

Hi740

604

511

710

813

680

640

659

620

694 

870

797

657

628

724

-

17,954

641

1.94

2.02

Mar.

840 

*1,110

1,030

933 

762

770

948

871

815

840

1,170

1,380 

1,380

1,300

1,140

1,130

1,230

1,110

990

915

890

1,080

1.850 

1,780

1,650

1,470

1,410

1,260

1,100

1,010

929

35,093

1,132

3.42

3.94

Apr.

870 

795

799

948 

959

943

965

910

798

738

708

669 

627

617

613

553

544

578

5£1

534

512

564

 618 

571

796

940

1,200

1,230

1,520

1 9Cfi 1 j £bU

23,740

791

2.39

2.67

May

1,140 

990

865

*740 

694

734

680

709

721

636

585

536 

504

444

419

437

414

396

411

372

299

185

251 

318

313

303

287

220

164

240

293

15,300

494

1.49

1.72

June

369 

329

367

275

164

269

304

260

258

232

195

186 

389

285

333

289

242

197

84

*181

208

204

205 

215

208

90

153

178

193

167

7,029

234

0.707

0.79

Jvly

157 

120

240

243 

250

224

169

179

128

57

154

212

148

161

122

108

37

71

122

91

83

90

114

42

73

95

67

76

110

110

55

3,908

126

0..381

0.44

Aug.

40

55

55

55 

80

55

65

190

160

170

140

200 

500

750

800

*700

600

1,340

*26,300

26.400

10,500

5,540

3,500 

2,800

2,200

1,800

1,500

1,300

1,150

1,050

1,000

90,995

2,935

8.87

10.23

Sept.

1.100 

1,000

850

750 

650

850

800

650

550

420

400

420 

400

390

370

340

320

300

350

330

400

400

360 

330

650

600

500

540

520

500

16,040

535

1.62

1.81

Calendar year 1954: Max 8,010 win 31 Mean 758 cfsm 2.29 in . 31.06

Water year 1954-55: Max 26,400 Hin 37 Mean 872 Cfsm 2.63 In. 35.77

Peak discharge (base. 2.OOP cfs). Dec. 16 (4:3O p.m.) 2,130 cfs (6.35 ft); Dec. 19 (7 p.m.) 

3,120 cfs (7.70 ft); Aug. 19 (5 p.m. and 9 p.m.) 48,000 cfs (26.5 ft).

* Discharge measurement made on this day.

Note. No gage-height record Aug. 1 to Sept. 3Oj discharge estimated on basis of 2 discharge measurements, weather records, engineer's notes, and records for Quinebaug River at Quinebaug, Conn., 

French River at Webster, Mass., and Quinebaug River at Jewett City, Conn.
THAMES RIVER BASIN 

Five Mile River at Killingly, Conn.

151

Location. Lat 41°50'14", long 71°53'09", at upstream left abutment of New York, New Haven 

and Hartford Railroad bridge, 0.5 mile upstream from Whetstone Brook, and 0.6 mile south 

of Killingly,, Windham County, and 3.2 miles upstream from uouth.

Drainage area.--58.2 sq mi.

Records available.--October 1937 to September 1955. Monthly discharge only for October 

1937, published in WSP 1301.

Gage.--Water-stage recorder. Datum of gage is 222.22 ft above mean sea level, datum of T929.

Average discharge.--18 years, 104 cfs.

Extremes.--Maximum discharge during year, 1,190 cfs Aug. 20 (gage height, 5.76 ft); minimum, 6.8 cfs Aug. 11 (gage height, 0.77 ft); minimum daily, 7.6 cfs July 23.

1937-55: Maximum discharge, 2,480 cfs July 24, 1938 (gage height, 8.52 ft); minimum, 

3.8 cfs Aug. 24, 1941 (gage height, 0.44 ft); minimum daily, 5.6 cfs Aug. 13, 1939, 

Aug. 24, 1941, Nov. 24, 1949, Nov. 15, 1952.

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 upstream. 

Revisions (water years). WSP 921: 1938-40. WSP 951: 1938-41.

Rating table, water year 1954-55 (gage height, In feet, and 

discharge, In cubic feet per second)

0.8 

1.0 

1.3 

1.7 

2.3

7.6

17

41

98

237

3.O 

4.0 

5.0 

6.0

397

635

925

1,28O

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsra

In.

Oct.

110

86

84

83

75

74

73

71

69

74

72

*66

69

66

69

149

184

161

117

79

72

70

66

66

57

75

68

80

88

128

138

2,739

88.4

1.52

1.75

Nov.

128

115

202

286

264

232

205

182

165

151

138

128

123

' 117

115

113

109

1O8

104

13(3

184

207

200

184

184

177

165

134

174

194

4,918

164

2.82

3.15

Dec.

192

177

160

149

142

136

130

125

123

140

138

130

121

132

320

331

272

281

408

386

331

309

274

254

237

213

*200

192

247

353

397

7,000

227

3.90

4.50

Jan.

342

131

331

298

272

26O

262

240

207

194

179

172

170

160

156

153

140

125

95

87

75

80

76

76

75

69

71

73

65

"5* 63

DO

4,960

160

2.75

3.17

Feb.

55

57

54

57

60

66

193

142

97

89

122

320

229

172

149

135

182

2OO

177

158

150

145

158

170

160

142

136

140

_

_ _ _ __ _

3,915

140

2.41

2.51

Mar.

158

2O8

219

203

192

207

244

216

197

193

218

229

218

205

189

195

200

186

174

167

*162

198

286

279

252

242

244

222

206

195

184

6,488

209

3.59

4.14

Apr.

174

134

106

130

126

115

115

134

142

138

134

133

133

133

133

102

84

80

80

7_7_

80

86

88

83

111

134

154

147

198

205

3,689

123

2.11

2.35

May

179

132

103

94

*94

98

93

97

106

102

100

96

89

88

86

84

82

79

77

71

63

63

66

59

69

61

70

63

62

55" 53

2,634

85.0

1.46

1.68

June

65

68

63

56

60

65

52

47

49

48

29

58

80

77

70

66

6O

39

45

62

44

54

*47

46

43

52

60

46

46

43

1,640

54.7

0.940

1.05

July

40

20

45

36

52

44

49

49

19

31

43

39

26

27

28

10

23

44

28

22

25

27

7.6

8.7

31

27

42

42

41

9.5

13

948.8

30.6

0.526

0.61

Ajg.

36

38

26

35

26

*68

91

44

29

31

' 30

42

104

104

67

48

44

60

522

1.150

*996

670

516

448

368

318

272

237

198

172

164

6,954

224

3.85

4.44

Sept.

170

150

136

102

80

83

79

80

78

66

68

67

64

58

*57

57

42

51

63

80

123

105

56

87

174

108

79

97

115

95

2,670

89.0

1.53

1.71

Calendar year 1954: Max 795 Mln 9.3 Mean 130 Cfsra 2.23 in. 30.30

Water year 1954-55: Max 1,150 Mln 7.6 Mean 133 Cfsra 2.29 In. 31.06

Discharge measurement made on this day.
152 THAMES RIVER BASIN

Moosup River at Moosup, Conn.

Location.--Lat 41°42'37", long 71°53'11", on right bank at outlet of tailrace from 

Majestic Metal Specialties, Inc. (formerly Aidrich Bros.) mill at Moosup, Windham 

County, 100 ft upstream from New York, New Haven and 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 1955.

Gage.--Water-stage recorder. Datum of gage is 196.64 ft above mean sea level, datum of 1929.

Average discharge.--23 years, 162 cfs.

Extremes.--Maximum discharge during year, 1,520 cfs Aug. 20 (gage height, 5.17 ft); minimum, 1.8 cfs July 24 (gage height, 0.57 ft); minimum daily, 4.7 cfs July 24.

1932-55: 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 upstream at gage heights, 6.9 and 8.2 ft; minimum, 0.1 cfs Feb. 3, 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 ice effect, which are good. Low 

flow completely regulated by mills upstream.

Revisions (water years).--WSP 781: Drainage area. WSP 851: 1933, 1934(M), 1935-37.

Rating table, water year 1954-55, except periods of loe effect (gage 

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

.9 

1.1

1.3 

1.5

3.6

5.8

9.0

18

32

54

2.0 

2.5 

3.0 

4.0 

5.0

137

262

435

875

1,410

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

76

98

48

109

81

75

75

76

41

62

88

*78

71

70

!§

235

265

220

158

129

118

106

109

40

89

99

93

85

148

265

287

3,530

114

1.37

1.58

Nov.

239

198

508

600

437

353

268

248

201

176

176

176

172

118

148

134

136

112

130

249

483

483

378

29O

333

326

268

245

319

336

8,290

276

3.31

3.69

Dec.

284

242

204

181

172

163

154

150

155

256

248

209

186

274

898

852

542

595

945

735

564

419

364

357

329

274

*259

256

384

592

628

11,916

384

4.60

5.30

Jan.

495 443

439

388

319

310

336

287

256

233

198

188

186

167

165

167

142

123

115

101

134

118

67

124

106

b!25

b!35

66

83

b83

bllO

6,209

200

2.40

2.77

Feb.

b72

b72

b65

b55

b80

b40

41S

360

242

188

349

898

628

411

281

217

343

415

353

287

242

228

253

271

242

198

194

217

7,611

272

3.26

3.40

Mar.

262

287

248

242

236

340

491

395

336

310

306

287

262

242

225

274

284

248

222

220

181

326

695

*6l5

431

343

319

278

236

225

214

9,583

309

3.70

4.27

Apr.

186

170

181

211

245

214

211

198

188

149

138

139

124

135

148

86

114

156

149

91

116

150

95

131

195

236

306

278

483

475

5,698

190

2.28

2.54

May

360

268

228

184

149

303

262

248

256

242

*199

181

178

97

131

155

147

140

123

119

136

54

85

106

139

333

542

^59

176

129

118

6,047

195

2.34

2.70

June

132

114

130

88

42

110

100

86

76

68

68

137

281

I5T

96

117

95

82

16

88

102

105

*83

115

96

65

107

101

74

79

3,054

102

1.22

1.36

July

E"4

20

^7

48

135

49

118

116

63

49

~3U 138

40

30

21

27

17

16

29

36

27

38

10

58~4.7

40

35

30

41

41

7.7

1,435.4

46.3

0.554

0.64

Aug.

30

38

32

16

29

*5.6

4.9

40

38

30

24

34

161

209

182

76

79

132

996

1.370

813

440

490

573

460

319

236

209

137

142

122

7,467.5

241

2.89

3.33

Sept.

130

145

81

102

98

150

95

75

88

25

33

85

82

69

54

*46

3T~ 9.4

94

68

67

66

80

109

516

293

202

213

253

204

3,363.4

112

1.34

1.50

Calendar year 1954: Max 1,470 Min 10 Mean 197 Cfsm 2.36 In, 32.05

Water year 1954-55: Max 1,37O Min 4.7 Mean 203 Cfsm 2.43 In. 32.88

Peak discharge (base, 800 efs).--Dee. 16 (7 a.m.) 945 cfs (4.15 ft); Dec. 18 (12 p.m.) 995 cfs 

(4.27 ft;; Feb. 12 (Z a.m.) 1,020 cfs (4.31 ft); May 27 (1 a.m.) 808 cfs (3.87 ft); Aug. 20 (7 a.m.) 

1,520 cfs (5.17 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.
THAMES RIVER BASIN 153

Quinebaug River at Jewett City, Conn.

Location. --La t 41° 35 '52", long 71° 59 '05", on left bank in rear of high school or Slater 

Avenue at Jewett City, New London County, 570 ft downstream from outlet of canal from 

Fisk Mills, Inc., at mouth of Pauchaug River, 1,000 ft downstream from railrcad bridge, 

and at mile 6.1.

Drainage area . 711 sq mi.

Records available. --July 1918 to September 1955.

 Gage. Water-stage recorder. Datum of gage is 63.07 ft above mean sea level, datum of T929.

Average discharge. --37 years, 1,244 cfs.

Extremes. . --Maximum discharge during year, 40,700 cfs Aug. 20 (gage height, 29.0 ft, from

loodmarks) 

over three

mum scarge urng year, , cs ug. gage eg, . , rom 

, from rating curve extended above 11,000 cfs by computation of peak flows 

r nearby dams at gage heights 21.7, 22.5, 24.0 and 29.0 ft; minimum, 36 cfs 

July 22, 23 (gage height, 3.67 ft); minimum daily, 42 cfs Aug. 6.

1918-55: Maximum discharge, that of Aug. 20, 1955; minimum daily, 18 cfs Aug. 28, 

Dec. 11, 1949.

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

good. Flow regulated by many ponds and reservoirs above station, the largest of which 

are Lake Chaubunagungamaug and Pauchaug Pond.

Revisions (water years) .--WSP 781: Drainage area. WSP 1301: 1919-26(M) .

Rating table, water year 1954-55 (gage height, in feet, and 

discharge, in cubic feet per second)

3.7 

3.9 

4.2 

4.6 

5.0 

6.0

124

230

370

860

8.0

12.0

16.0

20.0

24.0

28.0

2,200

6,330

11,900

18,800

27,500

37,800

Discharge, in cubic feet per second, water year October 1954 to September 195'3

Day

1

2

3

4

5

6

7

8

9

10

11

12

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 

1,100

795

1,070

1,040

890

890

778

778

615

778

*860

778 

750

778

1,540

1,890 

1,780

1,440

1,220

1,070

920

890

778

890

860

832

860

1,010

1,580

1,860

32,510

1,049

1.48

1.71

Nov.

1,610 

1,500

2,340

5,760

3,560

2,970

2,440

2,200

1,920

1,750

1,500

1,440

1,400 

1,250

1,280

1,220

1,160 

1,150

1,160

1,530

2,790

3,260

2,970

2,520

2,440

2,520

2,280

2,040

2,360

2,700

63,000

2,100

2.95

3.29

Dec.

2,520 

2,360

2,000

1,640

1,580

1,580

1,440

1,310

1 , 400

1,640

1,780

1,640

1,610 

1,640

4,060

4,720

3,960 

3,560

6,210

6,210

4,940

3,960

3,rco

2,970

2,700

2,360

2,280

2,160

2,440

3,360

4,280

87,570

2,825

3.97

4.58

Jan.

5,860 

3,460

3,660

3,160

2,790

2,520

2,700

2,360

2,120

2,000

1,820

1,680

1,640 

1,370

1,310

1,310

1,340 

*1,200

1,160

1,070

832

950

V8

1,010

980

980

920

778

722

615 

750

51,845

1,672

2.35

2.71

Feb.

750 

695

668

548

398

494

2,000

2,520

1,820

1,440

1,550

3,860

2,970 

2,280

1,890

1,470

1,890 

2,440

2,120

1,860

1,780

1,640

1,720

2,040

1,920

1,680

1,500

1,720

-

47,663

1,702

2.39

2.49

Mar.

1,860 

2,360

2,280

2,200

1,960

2,040

2,880

2,520

2,200

2,160

2,360

2,700

2,700 

2,610

2,360

2,280

*2,440 

2,280

2,040

1,920

1,890

2,120

4,060

4,060

3,560

3,060

2,880

2,700

2,360

2,120

1,960

76,920

2,481

3.49

4.02

Apr.

1,820 

1,640

1,610

1,890

2,040

1,890

1,890

1,750

1,680

1,540

1,470

1,400

1,340 

1,310

1,310

1,280

1,100 

1,220

1,250

1,190

1,130

1,070

1,160

1,160

1,540

1,780

2,280

2,280

2,700

2.880

48,600

1,620

2.28

2.54

May

2,440 

2,200

1,820

1,610

1,400

*1,640

1,470

1,470

1,820

1,540

1,340

1,190

1,070 

1,010

950

1,100

1,070 

980

950

890

832

"670" 611

751

792

920

1,470

1,040

668

778

860

37,352

1,205

1.69

1.95

June

890 

860

778

654

459

700

678

662

651

495

346

668

1,100 

* 1,100

890

722

668 

580

'690 320

635

560

565

575

482

545

695

610

514

463

19,555

652

0.917

1.02

July

240

258

358

464

508

495

832

722

495

378

429

342

354 

323

317

202

248 

270

339

260

264

204

61

2lT

439

289

260

338

349

90

230

10,569

341

0.480

0.55

Aug.

337 

291

272

267

126

*42

lU6

348

289

299

375

360

1,210 

1,610

1,600

1,260

998 

1,060

7,020

*55.300

25,100

11,200

6,770

5,750

4,560

3,590

2,930

2,560

2,210

1,880

1,750

21,470

3,918

5.51

6.35

Sept.

1,820

1,770

,590

,460

* ,360

,340

,340

',230

1,060

838

778

914

816 

827

878

773

524 

84

640

684

766

810

766

823

1,950

1,690

1,310

1,360

1,610

1,320

33,111

1,104

1.55

1.73

Calendar year 1954: Max 10,700 Min 121 Mean 1,613 Cfsm 2.27 In. 30.80

Water year 1954-55: Max 35,300 Min 42 Mean 1,726 Cfsm 2.43 In. 32.94

Peak discharge (base, 4,500 cfs).--Dee. 15 (10:30 p.m.) 4.94O cfs (10.75 ft); Dec. 19 (6 p.m.) 

6,690 cfs (12.31 ft); Dec. 31 (9 a.m.) 4,500 cfs (10.38 ft); Aug. 20 (5 to 6 p.m.) 40,700 cfs 

(29.0 ft).

* Discharge measurement made on this day.

Note. No gage-height record Aug. 19-22; discharge computed from reconstructed gage-height graph 

based on stage of high-water mark and forebay readings at the Tunnel Plant of the Connecticut Light 

& Power Co. on the Quinebaug River at Taftville, Conn.
154 THAMES RIVER BASIN

Yantic River at Yantic, Conn.

Location. Lat 41-33'31", long 72°07'19", on left bank at Yantic, New London County 700 ft

 downstream from stone-arch highway bridge, 1 mile downstream from Sufquetenseut Brook, 

and 4.8 miles upstream from mouth.

Drainage area. 88.6 sq mi.

Records available.--October 1930 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 94.46 ft above mean sea level, datum of 192a

Average discharge. 25 years, 159 cfs.

Extremes.--Maximum discharge during year. 2,110 cfs Dec. 18 (gage height, 7.85 ft); minimum,

 9.2 cfs July 18 (gage height, 0.93 ft); minimum daily, 10 cfs Aug. 7.

1930-55: Maximum discharge, 13,500 cfs Sept. 21, 1938 (gage height, 14.66 ft, from 

floodmark), by computation of flow over two dams 2? miles upstream ana 3 miles downstream from station, respectively; minimum, 2.3 cfs sometime during period July *1 to 

Aug. 11, 1949; minimum gage height, 0.41 ft Oct. 13, 1930; minimum daily discharge, 

3.3 cfs Oct. 13, 1930.

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

 ord", which are good. Low flow completely regulated by mills upstream.

Revisions (water years). WSP 781: Drainage area. WSP 1051: 1931-36. WSP 1301: 1934(M).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Dec. 18 Dec. 18 to Sept. 30

1.6 

2.0 

2.5 

3.0 

5.0 

7.0

55

98

169

263

795

1,710

0.9 

1.1 

1.5 

2.0 

2.5

8.0

17

4,4

93

160

3.0 

5.0 

7.0 

8.0

245

740

1,600

2,250

Discharge, In cubic feet per second, water year October 1954 to Sept?mber 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

86

92

91

93

88

88

86

85

86

86

87

88

66

62

73

219

164

125

104

92

83

86

93

93

79

70

62

66

134

263

227

3,217

104

1.17

1.35

Nov.

167

124

596

620

420

316

237

191

166

141

134

135

132

125

120

111

106

107

120

353

560

445

316

247

445

360

274

237

360

349

8,014

267

3.01

3.36

Dec.

274

223

183

150

152

138

125

T53

156

263

229

164

148

252

1.710

914

520

866

1,630 *792

502

392

336

336

314

254

241

241

347

644

620

13,269

428

4.83

5.57

Jan.

416

404

392

336

274

274

304

232

221

201

177

163

154

b!30

123

130

130

b!22

114

104

b92

99

99

101

100

99

95

b91

b88

b80

b7_4

5,419

175

1.98

2.28

Feb.

71

ID 46

b42

b44

b44

56

578

367

221

163

290

660

369

230

175

152

308

358

274

221

200

185

226

254

226

185

180

203

______

6,328

226

2.55

2.66

Mar.

274

336

264

294

304

418

540

380

294

274

264

245

245

226

201

274

314

254

212

200

205

467

*960

552

392

347

358

294

245

222

203

10,058

324

3.66

4.22

Apr.

188

174

180

358

369

304

274

236

194

172

160

146

148 *156

169

163

145

137

130

127

119

156

178

152

189

217

245

217

478

452

6,333

211

2.38

2.66

May

314

230

188

166

168

254

232

200

205

172

145

130

115

100

90

85

100

110

100

90

75

65

55

50

47

47

66

54

46

44

49

3,792

122

1.38

1.59

June

56

46

48

38

38

36

35

37

37

34

31

46

91

61

44

38

29

27

25

32

61 *55'

31

32

35

40

36

42

53

40

1,254

41.8

0.472

0.53

July

28

22

19

17

16

19

£6

31

23

19

35

60

61

30

14

16

14

12

T2

12

12

12

12

12

16

25

19

17

17

15

14

698

22.5

0.254

0.29

Aug.

13

12

12

12

11

11

10

14

12

12

11

43

448

532

345

162

71

122

1,280

1.430

598

327

419

495

323

210

156

146

119

105

7,599

245

2.77

3.19

Sept.

175

145

105

113

99

95

74

67

57

63

57

70

58

69

58

35

35

63 *68

97

98

64

52

286

565

332

191

262

292

206

3,951

132

1.49

1.66

Calendar year 1954: Max 1,900 Mln 11 Mean 190 Cfsm 2.14 In. 29.07

Water IO.UCTI year .ycrai 1954-55: J.JLj-±-Ljo ; I'leiA Max 1,710 J., I J.V. Mln n.i.11 10 J.V. Mean ntJail 192 0.3£. Cfsm v_l aill 2.17 £..i( In. J.11. 29.36 ^.a.oo

Peak discharge (base. 1.000 cfs).--Dec. 15 (4 a.m.) 1,950 cfs (7.36 ft); Dec. 18 (11 p.m.) 2,110 cfs 

7.85 ft); Feb. 12 (1 a.m.; 1,000 cfs (5.69 ft); Mar. 23 (2 a.m.) 1,120 cfs (5.96 ft); Aug. 19 

'12 p.m.) 1,920- cfs (7.53 ft).

* Discharge measurement made on this day

b Stage-discharge relation affected by Ice.

Note. No gage-height record May 11-24; discharge estimated on basis of recorded

.ather records, engineer's notes, and records for nearby streams.

range In stage,
CONNECTICUT RIVER BASIN 

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

155

Location.--Lat 45°05'15", long 71°17"35", on right bank a quarter of a mile downstream 

from 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 1955.

Gage. Water-stage recorder. Altitude of gage is 1,560 ft (from topographic map).

Prior to 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.--38 years, 196 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 1,000 cfs Oct. 4 (gage height, 3.68 ft); minimum daily, 8.4 cfs Apr. 3-6.

1917-55: 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 dan at gage 

height 6.12 ft; maximum gage height, 6.35 ft May 5, 1925 (backwater from logging 

operations); minimum daily discharge, 3.1 cfs Mar. 17, 18, 1929.

Remarks. Records good except those below 20 cfs, which are fair. Flow regulated by 

First Connecticut and Second Connecticut Lakes (see p. 232).

Revisions (water years). WSP 756: Drainage area. WSP 1001: 1931-39. WSP 1231: 

1921-23(M), 1925-26.

Rating table, water year 1954-55 (gage height, In feet, and 

discharge, In cubic feet per second)

1.4

1.5 

1.7 

2.0

2.5 

3.0 

3.5

221

440

830

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

196

466

543

424

752

594

686

695

677

650

443

339

384

339

339

339

339

268

242

242

242

218

235

235

235

235

235

105

19

19

78

10,793

348

-12.6

Nov.

238

*238

91

IB

18

18

18

141

321

452

446

446

446

446

446

440

440

440

440

226

IB

18

18

IB

IB

18

18

74

105

20

6,094

203

-36.0

Dec.

20

183

507

586

695

749

B03

*794

662

331

199

520

749

794

57B

408

403

403

403

403

403

578

740

731

731

722

722

731

286

17

17

15,868

512

-425

Jan.

17

14U

387

569

722

722

722

722

722

722

713

713

704

704

704

695

6B6

695

704

487

304

299

299

299

299

299

299

299

299

299

299

15,544

501

-461

Feb.

299

299

299

299

29«

299

295

295

299

299

299

252

202

202

199

199

232

299

299

299

295

291

275

295

299

299

299

299

-

7,816

279

-241

Mar.

299

299

299

299

299

299

299

299

299

299

299

299

299

299

299

295

254

302

387

377

326

264

218

184

158

139

120

110

100

89

81

7,889

254

-164

Apr.

37

9.0

8.4

8.4

8.4

8.4

9.0

9.0

9.0

9.6

10

10

10

12

13

12

12

12

13

13

13

*13

14

14

14

14

14

14

14

14

371.2

12.4

+754

May

14

15

15

15

16

16

16

17

17

17

17

17

17

17

17

17

18

18

18

18

17

17

17

17

17

*18

IB

IB

18

18

18

525

16.9

1-461

June

20

24

21

18

IB

18

IB

18

18

18

18

18

19

21

22

19

IB

160

184

184

287

387

387

387

208

134

134

134

134

134

3,180

106

+120

July

134

134

134

134

134

109

7B

33

18

*18

18

18

IB

18

18

18

18

IB

18

19

19

19

19

20

20

20

20

20

352

488

488

2,592

83.6

-67.9

Aug.

173

18

18

IB

18

18

18

18

*18

18

18

18

18

18

19

19

19

20

251

goo

500

344

148

48

18

18

18

123

310

398

273

3,433

111

-10.5

Sept.

*193

193

221

246

242

238

238

238

238

238

238

238

242

246

246

246

246

242

242

246

252

256

184

148

148

148

148

148

148

148

6,445

215

-215

Adjusted for change In reservoir conbents

Mean

Cfsm

In.

336

4.05

4.66

167

2.01

2.2E

86.6

1.04

1.20

40.5

0.4B8

0.56

38.1

0.459

0.48

90.6

1.09

1.26

766

9.23

10.30

478

5.76

6.64

Observed

Calendar year 1954: 

Water year 1954-55:

Max B66 

Max 803

Mln 11 Mean 247 

Mln 8.4 Mean 221

* Discharge measurement made on this day. 

t Change In contents, equivalent In cubic feet per 

lent, Tflkes,

226

2.72

3.03

15.7

0.1B9

0.22

100

1.20

1.39

-0.133

-0.0016

-0 . 002

Adjusted

Mean 

Mean

251 

196

Cfsm 3 

Cfsm 2

.02 In. 

36 In.

second, In First Connecticut and Second

Note. Negative figures of adjusted discharge and runoff Indicate that evaporation 

from reservoirs exceeded Inflow.

and see

41.09 

31.99

Connect

Dage
156 CONNECTICUT RIVER BASIN 

Connecticut River at North Stratford, N. H.

Location.--Lat 44°44 I 55", long 71°37'55", on left bank at North Stratford, Coos County, 

400 ft downstream from Mulhegan River.

Drainage area.--799 sq ml.

Records available.--August 1930 to September 1955.

Gage. Water-stage recorder. Datum of gage is 

1929.

).17 ft above mean sea level, datum of

Average discharge.--25 years, 1,573 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 18,700 cfs Apr. 15 (gage height, 11.74 ft); 

minimum dally, 114 cfs July 24.

1930-55: ' 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. 28, 1948.

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

regulated by powerplants and by First Connecticut and Second Connecituct Lakes and 

Lake Francis (see p. 232).

Revisions (water years).--WSP 781: 1934(M). WSP 891: Drainage area.

Rating table, water year 1954-55, except periods of lee effect (gage 

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

2.7 

3.1 

3.5 

4.0

109

242

467

910

5.0

7.0

9.0

11.0

2,270

5,850

10,600

16,500

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

2,580

3,430

3,800

7.420

7,320

4,820

*4,100

3,550

3,240

3,070

2,700

2,450

2,750

2,890

2,270

2,090

2,000

1,760

1,530 

1,400

1,360

1,300

1,240

1,190

1.130

1,150

1,720

2,260

1,390

1,230

1,320

80,460

2,595

-10.4

Nov.

,460

* ,480

,430

,660

,410

,240

,090

987

1,230

1,490

1,530

1,540

1,450

1,440

1,440

1,360

1,410

1,430

1,500 

1,840

3,440

5.150

2,900

2,000

1,610

1,400

1,260

1,170

1,440

1,300

50,087

1,670

-39.4

Dec.

1,090

921

1,400

1,780

1,970

1,800

2,000

*2,080

2,100

1,610

1,170

1,140

2,100

2,100

2,150

1,670

1,480

1,800

5.050 

2,410

1,900

1,650

2,400

2,450

2,550

2,500

2,450

2,400

3,000

2,300

2,020

61,441

1,982

-817

Jan.

1,740

1,590

1,760

1,820

2.290

2,250

2,200

2,150

2,050

2,000

1,950

1,950

2,000

1,900

1,900

1,90O

2,000

2,000

1,950 

1,900

1,150

1,100

1,050

1,000

1,000

980

960

940

920

910

900

50,210

1,620

-940

Feb.

880

860

860

870

900

910

920

930

920

880

950

1,050

900

840

800

780

770

950

1,000 

950

900

1,000

1,300

1.800

1,700

1,550

1,450

1,400

_

29,020

1,036

-507

Mar.

1,350

1,350

1,300

1,250

1,2OO

1,200

1,150

1,150

1,250

1,300

1,550

2,000

3,000

2,900

2,620

2,720

3.070

1,900

1,900 

1,750

1,700

1,460

1,310

1,220

1,200

1,070

976

760

965

943

965

48,479

1,564

-391

Apr.

1,140

1,120

1,020

1,180

1,820

A 880

4,880

3,780

2,700

2,850

5,220

5,950

5,630

7,410

16.200

15,600

9,560

6,850

8,080 

9,220

6,550

*5,200

6,170

6,730

5*430

4,450

4,000

3,820

3,380

3,740

162,560

5,419

+1,622

May

3,530

3,160

2,890

2,620

3,960

4.370

2,970

2,490

2,720

2,690

2,120

1,680

1,450

1,300

1,150

1,030

998

870

860 

880

790

900

656

612

620

800

*733

588

525

800

820

51,582

1,664

+703

June

4,120

3,760

2,180

1,430

1,120

932

810

692

548

525

564

665

1,350

3,610

4.500

2,220

1,390

1,020

810 

665

629

870

870

656

685

665

683

556

460

414

39,397

1,313

+431

July

371

330

395

325

309

299

288

260

204

*200

192

167

165

206

121

241

360

287

236 

213

162

165

134

114

151

269

556

604

580

596

564

9,064

292

-99.4

Aug.

572

355

148

125

126

202

781

1,880

655

*365

908

1,350

740

750

1,230

2.620

1,910

1,970

1,320 

1,080

932

900

1,220

1,430

740

482

564

612

770

965

998

28,700

926

-81.8

Sept.

*998

976

750

701

683

665

674

647

638

620

638

770

720

665

656

656

638

629

620 

620

620

596

588

604

604

604

596

604

638

620

20,038

668

-485

Adjusted for change In reservoir contents

Mean 

Cf sra 

In.

2,585 

3.24 

3.73

1.63C 

2.04 

2.26

Calendar year 1954: 

Water year 1954-55:

1,165 

1.46 

1.68

680 

0.851 

0.98

530 

0.663 

0.69

1,173 

1.47 

1.69

7,041 

8.81 

9.83

2,367 

2.96 

3.42

Observed

Max 18,200 Mln 454 Mean 2,150 

Max 16,200 Mln 114 Mean 1,729

1,744 

2.18 

2.43

193 

0.242 

0.28

844 

1.06 

1.22

183 

0.229 

0.26

Adjusted

Mean 2,163 C"sm 2.71 In. 36.75 

Mean 1,677 C'sm 2.10 In. 28.49

Peak discharge (base. 10.000 cfs).--Apr. 15 (10 to 11 p.m.) 18,7OO cfs (11.74 ft).

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second, In First Connecticut and Second Connecticut Lakes and Lake Francis.

Note. Stage-discharge relation affected by ice Dec. 13-15, 17-19, 21-30, Jan. 6 to Mar. 14, 

Mar. 18, 20, 21.
CONNECTICUT RIVER BASIN 157

Upper Ammonoosuc River near Groveton, N. H.

Location.--Lat 44°37'30", long 71°28'10", on left batik 75 ft upstream from highway 

 bridge, 0.2 mile downstream from Nash Stream, and 2f miles northeast of Groveton, 

Coos County.

Drainage area.--232 sq mi.

Records available. August 1940 to September 1955.

Gage.--Water-stage recorder. Altitude of gage is 920 ft (from topographic map).

Average discharge.--15 years, 483 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 6,240 cfs Apr. 15 (gage height, 7.93 ft); 

minimum, 68 cfs Sept. 10, 11.

1940-55: Maximum discharge, 9,950 cfs Mar. 27, 1953 (gage height, 9.44 ft), from 

rating curve extended above 5,800 cfs by logarithmic plotting; 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 year 1954-55, except periods of ice effect (gage 

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

2.7 

3.0 

3.5 

4.0 

4.5

132

325

600

950

7.0 

8.0

1,400 

2,58O 

4,250

6,400

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

492

498

640

1,750

1,780

1,110

*815

684

639

639

570

665

632

620

600

808

1,010

710

600

564

546

498

458

415

380

365

485

898

658

606

600

21,735

701

2.44

Nov.

560

500

645

1.620

1,310

935

751

658

594

530

470

450

425

405

380

*355

355

360

380

469

939

1,520

998

758

652

588

546

522

540

540

19,755

658

2.16

Dec.

486

420

350

300

340

280

*315

320

310

300

280

260

250

400

360

340

330

360

450

480

440

400

380

400

380

360

370

4OO

580

800

620

12,061

389

2.19

Jan.

480

430

390

350

310

310

280

250

230

240

230

21O

220

210

200

210

200

190

180

175

170

175

175

170

170

160

160

155

150

145

140

7,065

228

2.44

Feb.

135

135

135

*130

130

135

150

160

165

175

210

250

280

270

250

230

210

200

190

180

190

200

300

450

420

380

*350

310

_

6,320

226

2.70

Mar.

280

290

250

240

240

230

210

210

205

210

350

740

800

640

500

450

490

450

380

340

300

270

280

270

250

230

230

220

230

220

260

10,265

331

2.60

Apr.

350

370

360

380

500

800

1,250

1,350

950

982

1,660

2,050

1,880

2,110

4,900

5.440

3,560

2,680

2,880

*3,180

2,640

2,160

2,220

2,210

2,020

1,930

1,900

1,750

1,540

1,710

57,712

1,924

2.62

May

1,720

1,690

1,330

1,760

2,160

2.450

1,480

1,550

1,980

1,640

1,100

890

786

779

652

639

546

492

510

528

410

370

350

35^

415

982

704

492

425

480

547

30,687

990

2.54

June

*2 . 130

1,870

1,090

751

678

588

498

436

390

355

400

447

1,180

1,860

1,940

1,150

710

558

464

405

390

528

600

474

415

420

395

320

330

289

22,061

735

1.79

July

247

223

208

190

176

190

182

162

145

*135

139

165

114

111

108

132

172

155

145

123

108

97

94

99

125

114

74

102

108

99

89

4,331

140

2.49

Aug.

92

86

84

74

99

123

174

276

162

*102

134

260

190

552

468

745

613

540

390

284

212

201

350

492

370

251

196

162

135

123

120

8,060

260

2.35

Sept.

117

108

102

94

*86

92

117

117

114

72_

74

117

126

105

97

97

114

108

102

99

97

89

99

123

117

111

102

105

111

102

3,114

104

3.18

Adjusted for diversion

Mean 

Cfsm 

In.

704 

3.03 

3.50

66] 

2.85 

3. IE

Calendar year 1954: 

Water year 1954-55:

391 

1.69 

1.94

230 

0.991 

1.14

228 

0.983 

1.03

334 

1.44 

1.66

1,926 

8.30 

9.26

992

4.28 

4.93

Observed

Max 8,350 Min 120 Mean 784 

Max 5,440 Min 72 . Mean 557

737 

3.18 

3.55

142 

0.612 

0.71

262 

1.13 

1.30

107 

0.461 

0.51

Adjusted

Mean 786 Cfsm 3.39 In. 45.99 

Mean 559 Cfsm 2.41 In. 32.71

Peak discharge (base. 2.900 cfs).--Apr. 15 (10 to 11 p.m.) 6.240 cfs (7.95 ft). 

* Discharge measurement made on this day.

t Diversion, equivalent in cubic feet per second, for municipal supply of Berlin 

nished by city of Berlin.

Note. Stage-discharge relation affected by ice Nov. 10-16, Dec. 2 to Apr. 8.

Records fur-
158 CONNECTICUT RIVER BASIN

Ga

Connecticut River near Dalton, N. H.

Location.--Lat 44°24'35", long 71°43'00", on left bank 250 ft upstream from highway 

bridge, 1,200 ft downstream from dam of Oilman Paper Co., and If miles downstream 

from Dalton, Coos County.

Drainage area. 1,514 sq mi.

Records available.--March 1927 to September 1955. Published as "at Waterford, Vt." 

1927-35.Records published for both sites January to September 1935. 

.--Water-stage recorder. Datum of gage is 799.89 ft above mean sea level, datum of 

929. Prior to Sept. 30, 1935, chain gage at bridge 10j miles downstream at mean sea 

level. Jan. 1, 1935, to June 29, 1937, chain gage at bridge 250 ft downstream at 

present datum.

Average discharge. 28 years, 2,916 cfs (adjusted to drainage area at present site and 

for storage).

Extremes.--Maximum discharge during year, 27,100 cfs Apr. 17 (gage height, 20.19 ft); 

minimum daily, 140 cfs Aug. 7.

1927-55: Maximum discharge, 48,300 cfs Mar. 20, 1936 (gage height, 25.6 ft); minimum daily, 115 cfs Oct. 3, 1937.

Remarks.--Records good except those based on chain-gage readings and those for periods of 

ice effect, which are fair. Flow regulated by powerplants and by First Connecticut 

and Second Connecticut Lakes, Lake Francis (see p. 232 ), and other reservoirs. These 

reservoirs have a combined usable capacity of about 8 1/3 billion cubic feet.

Revisions (water years). WSP 891: Drainage area. WSP 1231: 1935. WSP 1301: 1928- 

35(M).

Rating table, water year 1954-55, except periods of ice effect 

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

6.4 

6.7 

7.0

8.0 

10.0

121

265

440

1,190

3,230

12.0

14.0

16.0

18.0

20.0

6,300

10,300

15,100

20,500

26,500

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50

51

Itotal

Mean

(t)

Oct.

2,880

4,040

4,550

7,360

10,600

10.800

8,050

6,500

5,370

4,900

4,740

*4,440

4,280 

4,460

4,200

5,910

4,08O

5,830

3,260

2,910

2,750

2,610

2,440

2,260

2,270

2,210

2.070

3,280

5,660 

5,060

2,680

154,630

4,545

-10.4

Nov.

2,950

2,860

2,850

4,500

4,500

3,700

5,100

2,740

2,540

2,510

2,610

2,680

2,640 

2,510

2,520

*2,490

2,580

2.210

2,260

2,610

4,210

8.500

8,270

5,450

4,000

5,480

5,090

2,700

2,840 

5,560

102,820

5,427

-59.4

Dec.

2,990

2,520

2,050

2,000

2,130

2,460

*2,450

2,720

2,950

5,100

2,82O

2,080

1.880 

2,420

2,700

5,500

2,940

2,580

5,740

5,140

3,910

2,850

2,550

2,900

3,440

5,250

5,200

5,590

4,080 

5.460

4,460

94,440

3,046

-817

Jan.

5.650

5,100

2,870

2,800

2,750

3,050

5,150

2,900

2,700

2,650

2,600

2,600

2,550 

2,550

2.5OO

2,500

2,500

2,450

2,400

2,400

2,550

1,750

*1,500

1,550

1,550

1,500

1,500

1,500

1,550 

1,300

1,250_

71,750

2,515

-940

Feb.

1,200

1.150

1,150

1,150

1,200

1,250

1,500

1,550

1,500

1,200

1,550

1,550

1,500 

1,450

1,400

1,550

1,300

1,500

1,550

1,450

1,500

1,550

1,900

2,500

5,100

5.500

2,800

2,600

-

 

45,500

1,625

-507

Mar.

2,5OO

2,500

L,500

2,500

*2 , 100

2,050

2,100

2,000

1,850

2,000

2,500

3,500

5.600 

5,600

4,900

4,500

4,700

4,650

3,700

3,250

5,000

2,900

2,600

2,500

2,550

2,200

2,050

1,900

1.700 

1,750

1,850

89,400

2,884

-591

Apr.

»2 . 200

2,700

2,850

2,900

3.9OO

5,950

9,400

9,760

7,410

6,370

8,750

11,500

11,500 

11,500

16,800

24.OOO

25.600

20,000

15,900

*16,500

16,100

13,400

11,500

11,800

11,800

10,800

9,810

9,190

8,070 

T,490

525,050

10,840

+1,622

May

7,700

7,180

6,920

6,680

6,550-

8.850

8,270

6,500

7,890

7,700

6,160

4,740

5,970 

5,570

3,220

2,86O

2,640

2,420

2,220

2,260

2,020

1,830

1,860

1,770

1.550

2,340

2,940

2,270

1,820 

1,800

2,180

130,640

4,214

+703

June

*6,260

9.870

7,320

4,760

5,610

5,050

2,520

2,010

1,820

1,630

1,800

1,520

2,880 

5,900

9,290

7,620

4,610

3,200

2,440

2,090

1,760

2,090

2,580

2,360

2,210

2,170

2,120

1,900

1,700 

1.570

104,440

5,481

+431

July

1.240

'535

570

744

*878

878

87O

870

467

605

715

619 

542

452

380

186

658

1,020

640

528

50O

440

178

246

476

626

635

990 

1,100

546

20,272

654

-99.4

Aug.

422

906

700

500

422

568

140

1,240

2,050

1,410

1,190

1,110

1,540 

1,500

1,860

2,690

4.150

4,060

5,280

2,410

1,920

1,680

1,840

2,540

2,640

2,030

1,630

856

1,100 

1,500

1,420

51,044

1,647

-81.8

Sept.

1,410

1,410

1.510

950

*724

730

1,540

1,160

1,100

1,090

579

800

1,260 

1,230

1,150

958

950

655

772

908

1,120

902

910

838

547

631

1,070

814

838 

894

29,230

974

-485

Adjusted for change in reservoir contents

Mean 

Cfsra 

In.

4,353 

2.86 

5.50

5,388 

2.24 

2.50

Calendar year 1954: 

Water year 1954-55:

2,229 

1.47 

1.70

1,375 

0.908 

1.05

1,118 

0.758 

0.77

2,493

1.65 

1.90

12,460 

8.23 

9.18

4,918 

3.25 

5.74

Observed

Max 55,100 Mln 652 Mean 4,291 

Max 25,600 Mln 14O Mean 5,286

5,912 

2.58 

2.88

555 

0.567 

0.42

1,565 

1.03 

1.19

490 

0.324 

0.56

A1 justed

Mean 4,503 Cfsm 2.84 In. 38.59 

Mean 5,253 Cfsm 2.14 In. 28.99

Peak discharge (base. 16.500 cfs). Apr. 17 (5 a.m.) 27,100 cfs (20.19 ft).

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in First Connecticut and Second Connecticut Lakes and Lake Francis.

Note. Stage-discharge relation affected by ice Dec. 22-24, 26-28, Jan. 4 to Apr. 6. Discharge for 

periods Feb. 5-27, Aug. 11, 12 computed from twice-daily chain-gage readings.
CONNECTICUT RIVER BASIN 159

East Branch Passumpsic River near East Haven, Vt.

Location.--Lat 44°38'02", long 71°53'53", on right bank in Burke, Caledonia County, 

2.1 miles south of East Haven, Essex County.

Drainage area. 53.8 sq mi.

Records available. July 1939 to October 1945, October 1948 to September 1955. Prior to 

October 1951, published as Passumpsic River near East Haven.

Gage. Water-stage recorder. Datum of gage is 945.88 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. 13 years, 102 cfs.

Extremes. Maximum discharge during year, 1,440 cfs Apr. 15 (gage height, 5.25 ft); minimum, 14 cfs Aug. 3-5.

1939-45, 1948-55: Maximum discharge, 2,180 cfs May 28, 1940 (gage height, 6.21 ft); 

minimum, 13 cfs Sept. 1-5, 1953.

Maximum stage known, about 12.6 ft sometime in November 1927, from information by 

local resident.

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

which are fair.

Revisions. WSP 1141: Drainage area.

Rating tables, water year 1954-55, except periods of Ice effect (gage

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

(Shifting-control method used Apr. 15)

Oct. 1 to Apr. 15

1.0 

1.2 

1.5 

2.0 

2.5

81

174

300

3.0 470

3.5 660

4.0 900

5.0 1,430

0.7

.9

1.2

1.5

Apr. 16 to Sept. 30

14

24

2.0 

3.0 

4.0 

4.5

163

415

780

1,010

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

Oct.

118

132

294

660

419

243

189

161

148

*142

159

167

167

146

128

134

125

112

106

102

97

92

89

86

81

83

144

164

119

119

121

5,047

163

3.03

3.49

Nov.

109

99

97

125

125

109

99

92

89

78

74

77

68

70

66

60

65

74

83

140

382

351

192

150

132

121

114

111

134

130

3,616

121

2.25

2.50

Dec.

Ill

99

86

78

*82

68

70

68

66

66

62

58

52

66

70

68

58

125

245

140

115

100

94

98

84

74

80

90

210

150

115

2,948

95.1

1.77

2.04

Jan.

100

105

80

76

74

75

70

65

60

62

60

56

58

57

56

58

56

53

50

49

48

*52

51

48

45

45

43

41

40

39

11

1,809

58.4

1.09

1.25

Feb.

36

35

34

34

34

35

37

40

38

37

44

68

62

a54

a48

a45

a41

a39

a38

a37

a45

a56

74

100

76

a62

*55

50

-

_ _ _ _ -

-----

1,354

48.4

0.900

0.94

Mar.

55

68

56

49

49

46

43

41

41

43

90

130

110

9E

80

90

88

82

76

74

70

64

66

63

63

ez

61

59

*59

61

66

2,099

67.7

1.26

1.45

Apr.

92

92

87

106

154

234

315

223

167

222

421

438

404

595

1,280

870

570

527

*842

673

*506

475

570

489

451

448

433

367

364

361

12,776

426

7.92

8.83

May

328

295

270

242

544

320

240

258

268

212

181

159

149

138

129

122

117

111

109

108

99

94

90

89

98

111

91

83

90

102

99

5,146

166

3.09

3.56

June

a400

a300

*139

114

101

91

83

73

67

64

68

73

112

208

132

96

79

67

60

54

59

108

68

58

72

72

60

52

45

41

3,016

101

1.88

2.08

July

39

37

35

32

50

58

*45

38

34

32

30

28

28

27

27

52

57

43

33

28

26

24

22

23

21

20

20

22

19

17

Tf

984

31.7

0.589

0.68

Aug.

17

17

15

14

15

*26

127

120

54

36

48

52

42

119

116

324

145

117

81

*61

47

*162

230

155

85

64

53

44

39

37

37

2,499

80.6

1.50

1.73

Sept.

35

32

33

30

29

32

29

27

26

24

25

55

37

31

30

32

28

27

25

24

24

23

22

24

27

27

24

40

37

32

891

29.7

0.552

0.62

Calendar year 1954: Max 1,300 Min 23 Mean 145 Cfsm 2.70 In. 36.54

Water year 1954-55: Max 1,280 Min 14 Mean 116 Cfsm 2.16 In. 29.17

Peak discharge (base, eOO efs).--0et. 3 (12 p.m.) 865 cfs (3.93 ft); Apr. 15 (6 a.m.) 1,440 cfs 

(5.25 ft)j Apr. 19 (6:30 p.m.) 1,310 cfs (5.05 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stage 

when available, and records for Passumpsic River at Passumpsic, Moose River at Victory, and other 

stations on nearby streams.

Note.--Stage-discharge relation affected by ice Nov. 11, 13, 14, 16, Dec. 3 to Mar. 31.
CONNECTICUT RIVER BASIN

Moose River at Victory, Vt.

Location. Lat 44°30'40", long 71°50'15", on right bank at Victory, Essex County, 2.7 miles 

upstream from highway bridge.

Drainage area. 75.2 sq mi (revised).

Records available. January 1947 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 1,103.99 ft above mean sea level, datum 

of 1929 (levels by Corps of Engineers).

Average discharge. 8 years, 143 cfs.

Extremes.--Maximum discharge during year, 2,620 cfs Apr. 15 (gage heigh1-,, 10.22 ft), from 

rating curve extended above 1,600 cfs by logarithmic plotting; minimum, 4.6 cfs 

Aug. 4, 5.

1947-55: Maximum discharge, 2,940 cfs Apr. 21, 1950 (gage height, 10.89 ft), from 

rating curve extended above 1,600 cfs by logarithmic plotting; minimum, 3.7 cfs 

Sept. 16, 17, 1948.

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

Rating table, water year 1954-55, except periods of ice effect (gage 

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

2.45

2.5

2.7

3.0

3.5

4.0

4.6

5.5

10

7.0

9.0

10.0

150

225

443

765

1,750

2,460

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

108

110

148

513

650

382

225

177

*153

144

158

190

169

150

126

120

117

100

91

87

83

78

74

71

67

66

113

275

163

149

149

5,206

168

2.23

2.57

Nov.

127

109

101

144

154

130

109

98

93

80

73

78

68

67

66

57

64

66

72

136

470

962

576

292

220

184

164

155

162

178

5,255

175

2.33

2.60

Dec.

147

120

105

80

86

74

*72

72

73

74

72

68

64

58

68

88

76

90

340

296

176

130

110

115

100

91

88

93

245

174

3,673

118

1.57

1.82

Jan.

132

111

114

100

91

88

82

74

67

68

64

61

63

60

56

58

54

52

49

47

46

47

47

46

45

45

43

41

40

39

58

1,968

63.5

0.844

0.97

Feb.

37

36

35

35

35

36

40

45

40

38

41

60

74

80

60

56

50

46

45

44

47

58

92

140

170

130

110

95

-

1,775

63.4

0.843

0.88

Mar.

86

87

85

78

73

70

66

62

59

!§

69

165

210

170

145

130

145

13O

120

105

99

92

92

89

84

77

75

73

74

71

88

3,025

97.6

1.30

1.50

Apr.

123

144

156

167

225

337

551

622

465

386

644

935

833

767

2,080

2.120

1,300

837

*1,090

1,540

1,010

730

785

751

660

636

572

584

524

548

22,122

737

9.80

10.94

May

503

403

353

300

312

430

283

316

572

550

314

227

190

171

150

133

121

110

104

108

91

81

73

71

76

114

87

68

£2

88

102

6,564

212

2.82

3.25

June

569

663

*282

160

130

102

79

67

59

56

180

133

346

470

436

196

125

92

73

62

54

114

88

62

56

67

60

46

38

33

4,898

163

2.17

2.42

July

29

26

25

22

20

32

*29

22

18

16

15

12

11

11

11

13

19

19

18

13

11

9.3

10

18

15

11

9.3

9.3

9.0

7 6

6.8

497.3

16.0

0.213

0.25

Aug.

6.3

5.9

5.3

4.8

4.8

*8.8

16

88

28

16

16

41

29

66

87

194

137

190

94

54

34

25

146

153

76

43

31

23

19

17

16

1,674.9

54.0

0.718

0.83

Sept.

16

13

12

12

11

*10

10

9.8

9.0

8.6

8.6

18

24

16

14

15

14

12

11

9.5

8.8

8.8

9.0

8.8

9.5

10

10

12

20

17

367.4

12.2

0.162

0.18

Calendar year 1954: Max 2,5OO Min 12 Mean 2O3 Cfsm t2.70 In. t36.66

Water year 1954-55: Max 2,120 Min 4.8 Mean 156 Cfsm 2.O7 In. 28.21

--Nov. 22 (10 to 11:30 a.m.) 1,070 cfs (7.70 ft); Apr. 12 (6:3o 

. 15 (B to 7 p.m.) 2,620 cfs (10.22 ft); Apr. 20 (5 a.m.) 1,860

Peak dlscharg 

to 7 p.m.]

(base. l.OOo efs).

to i p.m.j i.ut 

cfs (9.16 ft).

* Discharge measurement made on this day.

t Computed using revised drainage area.

Note.--Stage-discharge relation affected by ice Nov. 15, Dec. 2-19, 22-27, Jan. 4 to Mar. 30.
CONNECTICUT RIVER BASIN 161

Moose River at St. Johnsbury, Vt. '

Location. Lat 44°25'20", long 72°00'05", on left bank at St. Johnsbury, Caledoria County, 

half a mile upstream from mouth.

Drainage area. 128 sq mi (revised).

Records available. August 1928 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 585 ft (from topographic map). Prior to 

Nov. 16, 1934, chain gage at site a quarter of a mile upstream at different datum.

Average discharge. 27 years, 224 cfs.

Extremes. Maximum discharge during year, 3,760 cfs Apr. 16 (gage height, 4.17 ft), from 

rating curve extended above 1,600 cfs; maximum gage height, 4.69 ft Jan. 15 (backwater 

from ice); minimum discharge, 7.7 cfs Aug. 5.

1928-55: Maximum discharge, 5,800 cfs Apr. 30, 1929 (gage height, 8.3 ft, from 

graph based on gage readings, site and datum then in use), from rating curve extended 

above 3,400 cfs; minimum, 6.2 cfs Sept. 17, 18, 1948, Aug. 27, 28, 1949.

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

which are fair. Slight diurnal fluctuation caused by powerplant above station.

Revisions (water years).--WSP 1231: 1929-30, 1931-34(M).

Rating tables 

height

water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Apr. 15 Apr. 16 to Sept. 30

2.0 45

2.5 95

2.9 156

3.2 265

3.5

3.6

3.7 

4.2

460

580

840

3,950

9.8

16

165

3.2

3.4

3.5

3.6

3.7 

4.2

255

360

440

570

790

3,950

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

162

162

271

1,050

964

634

367

280

*234

216

234

285

247

220

188

181

170

146

134

128

123

117

112

107

102

100

141

368

262

216

213

8,114

262

2.05

2.36

Nov.

188

159

150

202

220

188

159

140

134

120

107

117

102

95

95

83

*95

a96

105

200

1,000

1,720

1,180

533

a325

a275

a245

a220

a235

a260

8,748

292

2.28

2.54

Dec.

a215

a!75

a!50

allO

a!25

allO

*105

110

110

110

105

100

95

85

100

130

115

170

450

524

334

250

170

175

155

130

135

150

320

350

240

5,603

181

1.41

1.63

Jan.

185

170

165

155

135

130

120

110

105

105

100

94

96

90

85

90

83

80

75

72

*70

72

71

70

70

68

66

63

61

59

J57

2,972

95.9

0.749

0.86

Feb.

56

54

52

52

52

53

56

59

63

60

61

68

85

110

100

84

74

71

69

68

70

82

110

190

285

*235

170

145

_

2,634

94.1

0.735

0.77

Calendar year 1954: Max 3,560 Bin 19

Mar.

130

145

135

120

110

105

100

94

88

88

110

250

350

300

260

240

265

240

205

180

160

150

150

145

135

130

125

120

*120

120

155

5,025

162

1.27

1.46

Apr.

240

?95

320

429

548

,070

,410

,280

,090

,030

,280

,390

,470

1,410

3,400

3,450

2,050

982

1,730

2,720

1,110

954

934

954

*934

934

954

886

790

766

36,725

1,224

9.56

10.67

Hay

718

610

488

424

404

590

420

448

826

714

501

348

296

268

234

211

190

172

165

165

144

125

115

115

146

182

154

113

98

127

127

9,652

311

2.43

2.80

June

715

802

*458

241

163

161

129

104

87

78

190

204

446

630

594

296

190

144

115

93

87

175

151

102

87

95

95

74

60

53

6,845

228

1.78

1.99

July

11

45

41

56

33

36

*46

36

29

26

24

20

18

17

17

22

27

30

28

24

19

16

15

23

26

20

17

16

14

13

JL2

791

25.5

0.199

0.23

Aug.

11

11

9.6

Sil

12

*24

30

91

59

3?

34-

54

57

92

134

214

235

278

154

87

6T

49

134

188

124

71

51

39

33

29

28

2,431.4

78.4

0.612

0.71

Sept.

27

24

22

20

20

*20

19

18

17

16

16

26

35

52

26

24

24

22

20

18

16

15

15

17

a!8

a!7

a!7

a21

a32

a29

643

21.4

0.167

0.19

Mean 328 Cfsm t2.56 In. t34.82

Water year 1954-55: Max 3,430 Bin 8.8 Mean 247 Cfsm 1.93 In. 26.21

Peak discharge (base, 1,700 cfs. --Nov. 22 3 to 3:50 p. 

2,040 cfs (5.89 ft); Apr. 11 (3 p.m.) 2,040 cfs (3.89 ft); Apr 

(4.17 ft); Apr. 20 (12:30 p.m.) 3,040 cfs (4.06 ft).

, . . 

16 (2 to 2:30 p.m.) 3,760 cfs

Discharge measurement made on this day.

t Computed on basis of revised drainage area.

a No gage-height record; discharge estimated on basis of weather records and records for Aimnonoosuc 

River at Bethlehem Junction, N. H. , Moose River at Victory, Vt. , and other stations on nearby 

streams.

Note_. --Stage-discharge relation affected by ice Nov. 14-16, Dec. 7-19, Dec. 22 to Apr. 3.
CONNECTICUT RIVER BASIN

Passumpsic River at Passumpsic, Vt.

Location. Lab 44 "21 '55", long 72°02'20", on right bank 0.7 mile upstream from Waterandrick 

Brook" and 1 mile downstream from dam and village of Passumpsic, Caledonia County.

Drainage area. 436 sq mi.

Records available. October 1928 to September 1955. October 1928 monthly discharge only, 

published in WSP 1301.

Gage. Water-stage recorder. Altitude of gage is 490 ft (from topographic map). 

Average discharge. 27 years, 736 cfs.

Extremes^ Maximum discharge during year, 9,140 cfs Apr. 16 (gage height, 13.82 ft); minimum daily, 55 cfs July 31.

1928-55: Maximum discharge, 16,000 cfs Mar. 18, 1936 (gage height, 21.23 ft), from 

rating curve extended above 9,200 cfs on basis of computation of peak flow over dam; 

minimum daily, 13 cfs Sept. 12, 1948.

Maximum stage known, about 31.5 ft in November 1927, from information by local 

resident.

Remarks . Records excellent except those below 200 cfs, which are good, and those for 

periods of ice effect or no gage-height record, which are fair. Flo^ regulated by 

powerplants above station.

Revisions (water years) .--WSP 781: 

1930-31JM) .

1933(M). WSP 871: Drainage area. WSP 1231: 1929,

Rating table, water year 1954-55, except period of ice effect (gage 

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

1.4 

1.7 

2.1

2.5

16O 

291

3.0

6.0

9.O

13.0

535 

2,580 

4,930 

8,40O

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Cfsm

In.

Oct.

574

590

905

5.010

2,640

1,560

1,100

900

*804

753

858

949 

879

798

663

723 

681

584

540

540

491

475

440

430

420

390

597

1,080

741

699

711

26,525

856

1.96

2.26

Nov.

612

552

a55O

a680

a800

3620

546

524

486

420

371

435 

380

357

390

306

*357

*380

430

672

2,590

5.550

1,890

1,260

1,000

921

858

837

1,020

1,100

24,874

829

1.90

2.12

Dec.

907

729

540

450

430

*470

380

570

590

380

570

360 

370

540

550

450 

550

450

1,800

1,100

750

660

600

640

520

a450

a500

a720

al.100

al.OOO

a740

18,626

601

1.58

1.59

Jan.

364O

3670

a56O

353O

3520

3520

3490

3460

3430

440

440

400 

400

410

420

410 

590

370

360

350

540

575

560

540

520

320

305

285

275

270

265

12,665

409

0.938

1.08

Feb.

255

25O

250

*250

250

255

270

280

275

270

285

350 

520

470

410

570 

540

525

510

500

540

440

550

820

660

520

450

410

10,475

574

0.858

0.89

Mar.

45O

55O

45O

400

39O

360

340

350

550

350

500

1.550 

1,500

980

800

900 

940

820

720

640

670

600

600

580

560

540

490

460

480

470

550

19,280

622

1.45

1.64

Apr.

900

1,050

1,OOO

1,15O

1,6OO

2,730

3,760

2,750

2,010

2,520

4,020

4,170 

5,640

4,010

7,790

7,870 

5,230

3,860

5,450

6,280

*4,280

3,310

5,560

5,460

3,120

3,120

3,250

2,920

2,380

2,290

103,460

5,449

7.91

8.82

May

2,110

1,82O

1,610

1.45O

1,450

1,960

1,470

1,520

2.260

1,840

1,360

1,110

998

928

804

747 

705

663

623

651

579

518

496

465

564

858

618

486

455

579

530

32,227

1,040

2.59

E.75

June

2,660

2,050

1,170

*772

64O

574

470

410

575

534

543

562 

998

1,390

1,240

741 

550

405

343

328

526

556

470

546

555

400

575

500

284

256

20,161

672

1.54

J..72

July

200

178

185

177

171

214

^11

181

144

120

175

109 

117

112

100

166 

157

183

165

141

105

103

83

151

121

115

92

94

100

74

55

4,277

138

0.317

0.36

Aug.

103

93

74

80

85

108

162

641

299

*168

159

235 

248

899

850

1.220 

928

991

584

585

279

506

1,170

*998

555

357

304

238

210

184

179

13,072

422

0.968

1.12

Sept.

182

182

154

142

149

158

145

150

119

112

101

210

236

169

160

*154 

152

145

139

160

115

95

111

87

123

140

127

129

179

175

4,374

146

0.355

0.57

Calendar year 1954: Max 9,680 Min 124 Mean 982 Cfsm 2.25 In. 30.56

Water year 1954-55: Max 7,870 Min 55 Mean 795 Cfsm 1.82 In. 24.72

Peak discharge (base, 5.000 cfs). Apr. 16 (1 a.m.) 9,140 cfs (15.82 ft); Apr. 20 (12:50 a.m.) 

8,050 cfs (12.61 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stag 

and records for Wells River at Wells River, Moose River at St. Johnsbury, East Branch Passumpsic 

River near East Haven, and other stations on nearby streams.

Note. Stage-discharge relation affected by ice Dec. 3 to Apr. 5.
CONNECTICUT RIVER BASIN 

Ammonoosuo River at Bethlehem Junction, N. H.

163

Location. Lat 44 C 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 1955.

Gage. Water-stage recorder. Datum of gage is 1,180.74 ft above mean sea level, datum 

of 1929 (levels by Corps of Engineers).

Average discharge. 16 years, 214 cfs.

Extremes. Maximum discharge during year, 3,210 cfs Oct. 16 (gage height, 6.99 ft); minimum, 32 cfs Aug. 5.

1939-55: Maximum discharge, 10,500 cfs Mar. 27, 1953 (gage height, 11.22 ft), from 

rating curve extended above 4,100 cfs by logarithmic plotting; minimum, 16 cfs Nov. 14, 

1952 [caused by anchor ice upstream).

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

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.0 29

1.2 44

1.5 73

2.0 14O

2.5 250

Discharge, In cubic feet per se

3.0 

4.0 

5.0 

6.0 

7.0

395

740

1,310

2,110

3,220

cond, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

164 

156

156

362

270

202

184

168

162

181

*186

184

160

144

157

1,590

533

356

290

255

230

209

193

177

162

158

179

268

202

248

311

7,977

257

2.93

3.39

Nov.

228 

195

652

675

377

287

242

218

202

175

160

164

135

135

130

120

129

130

*144

296

617

665

344

265

232

211

193

186

200

186

7,893

263

3.00

3.35

Dec.

164 

144

115

*105

145

115

130

130

130

130

120

110

105

100

380

270

150

390

9QO

365

230

185

155

170

145

130

155

170

480

315 

240

6,573

212

2.42

2.79

Jan.

186 

188

165

150

130

130

115

105

100

105

loo

95

100

95

90

93

90

*85

80

77

75

80

80

76

74

72

70

68

66

64 

62

3,066

98.9

1.13

1.30

Feb.

60

59

59

58

,57

59

65

67

70

75

90

165

140

110

100

95

90

85

80

78

80

85

145

27O

200

150

130

*120

_

___:_-

2,842

102

1.16

1.21

Mar.

118 

137

105

95

99

97

90

85

85

106

255

540

296

204

160

207

215

185

160

140

134

118

122

121

110

105

105

95

102

100

118

4,609

149

1.70

1.96

Apr.

*158 

154

153

151

214

354

506

320

223

360

808

710

524

1,190

2.700

2,500

2,240

*1,040

1,280

1,030

753

749

908

758

664

750

8OO

650

550

470

23,667

789

9.01

10.05

May

54O 

580

630

600

650

550

420

500

800

500

370

310

300

280

260

240

235

200

185

180

160

155

155

185

270

650

320

225

200

400 

*265

11,315

365

4.17

4.80

June

1.200 

750

450

350

310

250

220

190

170

155

170

250

470

320

420

290

200

160

150

150

160

270

300

210

400

280

220

180

155

140

8,920

297

3.39

3.79

July

125 

115

170

125

110

160

125

110

93

85

*77

72

69

68

63

73

82

66

62

56

51

48

47

45

44

42

42

48

45

41

38

2,397

77.3

0.882

1.02

Arg.

37 

36

35

33

36

67

52

78

48

*41

107

200

103

818

236

202

195

190

135

112

96

86

183

311

154

118

102

91

84

78 

77

4,141

134

1.53

1.76

Sept.

73 

68

65

62

58

57

*54

51

49

48

47

53

48

46

44

44

42

41

40

39

40

38

38

40

44

42

40

42

48

43

1,444

48.1

0.549

0.61

Calendar year 1954: Max 3,250 Mln 46 Mean 320 Cfsm 3.65 In. 49.57

Water year 1954-55: Max 2,700 Mln 33 Mean 232 Cfsm 2.65 In. 36.03

Peak discharge (base, 2,700 cfa).--Qct. 16 (8 a.m.) 3,210 cfs (6.99 ft); Apr. 15 (6:30 to 7 a.m.) 

2,910 cfs (6.74 ft).

* Discharge measurement made on this day.

Mote. No gage-height record Jan. 21-23, Jan. 30 to Feb. 2, Feb. 8-28, Apr. 15, 16, Ap~. 26 to 

July 10; discharge estimated on basis of 3 discharge measurements, weather records, recorded range 

In stage when available, and records for Pemlgewasset Elver at Woodstoek and Ammonoosuc River near 

Bath. State-discharge relation affected by Ice Nov. 10, 11, 13-16, Dee. 3-15, 17-19, 21-30, 

Jan. 3 to Feb. 28, Mar. 3, 4, 7-9, 11, 12, 15, 17-21, 25-28, 30, Apr. 1, 2.
164 CONNECTICUT RIVER BASIN

Ammonoosuc River near Bath, N. H.

Location. Lat 44 0 09'15", long 71°59'10", on left bank 0.4 mile downstream from Wild 

Ammonoosuc River and lj miles downstream from Bath, Grafton County.

Drainage area. 395 sq mi.

Records available.--September 1935 to September 1955.

Gage. Water-stage recorder. Datum of gage is 454.14 ft above mean sea level, datum of 

1929 (levels by Connecticut River Power Co.).

Average discharge. 20 years, 685 cfs.

Extremes. Maximum discharge during year, 8,600 cfs Apr. 15 (gage height, 9.11 ft); minimum daily, 85 cfs Aug. 5.

1935-55: Maximum discharge, 27,900 cfs Mar. 18, 1936 (gage height, 15.40 ft), from 

rating curve extended above 13,000 cfs; minimum daily, 48 cfs Sept. 3, 1939.

Remarks. Records good except those for periods of ice effect or doubtful gage-height 

record, which are fair. Diurnal fluctuation at low flow caused by small powerplants 

above station.

Revisions.--WSP 871: Drainage area.

Rating tables, water year 1954-55, except periods of ice effect (gage

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

(Shifting-control method used Apr. 17-19, 25, 24. 26, 27, May 2-5, 10, 

11, 26, 30, June 1, 3, Aug. 14)

Oct. 1 to Apr. 14 15 to Sept. 50

2.2 

2.5

203

290

Note. --Same as 

following table 

above 2.5 ft.

1.4 

1.7 

2.0 

2.5

79

121

172

290

3.0 

4.0 

5.0 

6.0

485

1,060

1,900

3,100

7.0 

8.0 

9.0

4,600

6,300

8,360

Discharge, in cubic feet per second, water year October 1954 to Septe-nber 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

530

512

498

842

836

641

590

540

503

535

600

*615

540

485

440

1.480

1,310

788

636

585

530

485

472

458

428

380

412

595

550

610

800

19,226

620

1.57

1.81

Nov.

668

550

688

1,660

1,020

776

663

585

555

490

436

449

412

388

396

339

364

364

*396

759

3,110

5,680

1,630

1,150

958

860

788

740

932

1,050

26,856

895

2.27

2.53

Dec.

842

650

470

*400

500

450

470

500

500

470

450

420

400

380

750

1,150

640

840

5,100

1,550

850

600

550

600

550

480

550

650

1,300

1,380

964

23,406

755

1.91

2.20

Jan.

700

700

660

550

480

450

420

400

370

380

380

350

360

350

330

340

320

310

300

290

270

300

290

*280

270

260

250

250

240

230

130

11,310

365

0.924

1.06

Feb.

220

210

210

210

210

220

240

250

260

270

350

550

470

400

360

350

330

310

300

280

300

350

540

900

750

550

470

440

_

10,300

368

0.932

0.97

Mar.

430

500

420

400

370

350

350

510

510

380

800

1.750

1,000

750

580

750

780

680

580

500

470

450

450

420

420

400

370

350

350

370

550

16,550

534

1.35

1.56

Apr.

850

1,000

1,080

1,200

1,640

2,410

3,320

2,200

1,530

2,000

4,000

3,500

2,400

4,000

7.500

5,490

2,970

2,050

3,420

3,700

2,300

2,000

2,730

2,480

*1,900

2,430

2,500

2,000

1,700

1,500

77,800

2,593

6.56

7.33

May

1,700

1,770

1,950

1,890

2,040

1,800

1,300

1,700

2.500

1,510

1,160

997

932

880

806

740

729

630

570

560

494

476

476

575

820

1,940

1,000

712

630

1,210

866

35,363

1,141

2.89

3.33

June

5.740

*2,300

1,450

1,080

990

830

685

595

526

476

516

800

1,500

1,000

1,300

900

600

500

450

596

475

860

899

652

1,100

1,110

918

600

550

480

28,278

943

2.39

2.66

July

430

400

788

500

400

725

700

500

400

350

*230

182

180

176

155

191

250

211

164

140

134

138

118

105

119

117

112

122

126

130

Q«^±L

e,384

270

C.684

0.79

Aug.

98

94

86

96

J35

111

169

250

186

132

235

727

400

1,160

754

456

600

1,220

575

596

290

250

420

899

526

339

261

256

205

192

196

11,622

575

0.949

1.09

Sept.

190

T66

140

162

136

118

*151

*120

113

111

99

151

156

150

105

122

89

111

96

101

105

88

92

96

113

105

109

93

122

126

5,552

118

0.299

0.55

Calendar year 1954: Max 8,770 Min 114 Mean 1,004 Cfsm 2.54 In. 34.53

Water year 1954-55: Max 7,500 Min 85 Mean 747 Cfsm 1.89 In. 25.65

Peak discharge (base, 6,500 cfs).--Apr. 15 (6:30 a.m.) 8,600 cfs (9.11 ft). 

* Discharge measurement made on this day.

20-22, £5, Apr. 28 to May 1, May 6-9, June 2, 12-19, 8 to July 2, July 4, 5, 7-11; dlsoharg 

computed on basis of 3 discharge measure] if recorder chart, weather records, and

records for stations mentioned above.
CONNECTICUT RIVER BASIN 

Connecticut River at Wells River, Vt.

165

Location.--Lat 44°09'15", long 72°02'35", on right bank 200 ft downstream frorr bridge on 

U. S. Highway 302, at Wells River, Orange County, 400 ft upstream from Wells River, 

and 1,200 ft downstream from Ammonoosuc River.

Drainage area. 2.644 sq mi.

Records available.--October 1949 to September 1955. October and November 194E1 monthly 

discharge only, published in WSP 1301.

Gage. Water-stage recorder. Datum of gage is 399.75 ft above mean sea level, datum of 

1929.

Average discharge. 6 years, 5,104 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 40,500 cfs Apr. 17 (gage height, 12.95 ft); 

minimum daily, 337 cfs Aug. 7.

1949-55: Maximum discharge, 54,000 cfs Mar. 27, 1953 (gage height, 15.96 ft); 

minimum daily, that of Aug. 7, 1955.

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

regulated by powerplants, by First Connecticut and Second Connecticut Lake?, Lake 

Francis, Comerfordf Station Pond (see p. 232) , and other reservoirs (combined usable 

capacity, about 9f billion cubic feet).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Apr. 16 Apr. 17 to Sept. 30

1.5 

2.0 

3.0 

4.0

690

1,270

2,740

4,400

5.0

7.0

11.0

13.0

6,650

14,200

31,700

40,700

0.9

1.3

320

580

2.0 

3.0

1,340

2,740

Note. Same as preceding 

table above 3.0 ft.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

(t)

Oct.

4,640

5,100

4,760

10,700

15.200

14,600 

12,600

11,300

6,890

4,030

7,130

6,910

6,920

6,580

7,070

6,600

5,480

6,220

5,220 

4,050

5,080

5,020

3,160

2,780

3,220

3,810

4,990

5,580

6,320 

5,630

2.560

199,950

6,450

+55.0

Nov.

,650

,880

,710

,000

,600

,150 

,360

,980

,600

,080

,480

,420

2,980

1,880

3,610

4,380

4,420

*4,440

2,890 

4,900

10,600

16,500

15,300

11,600

7,010

6,360

5,330

2,740

6,720

8,060

182,630

6,068

-105

Dec.

6,610

5,820

4,160

3,300

1.950

3,320 

4,320

4,360

4,460

*5,530

2,770

2,410

4,730

5,620

5,080

5,780

4,880

4,240

8,580 

8,200

7,400

5,800

5,200

4,700

3,600

2,900

5,200

5,800

7,000

8,000 

7,000

158,720

5,120

-782

Jan.

4,900

5,180

5,700

5,000

5,200

5,600 

4,600

3,200

2,800

3,900

5,000

5,800

5,600

3,800

3,000

2,500

3,500

4,100

4,500 

4,200

3,600

2,600

1,350

2,100

2,400

2,700

2,600

2,400

2,500 

1.250

1,400

113,180

3,651

-938

Feb.

2,400

2,800

2,550

2,200

1,100

710 

2,100

2,400

2,600

2,500

2,500

1,650

1,050

3,000

3,100

3,100

3,700

3,100

2,450 

1,450

1,800

2,700

4,000

5,000

5,200

4,900

4,100

4,800

-

78,960

2,820

-509

Mar.

5,200

5,400

4,700

4,600

2,900

2.150 

3,100

3,600

3,400

3,500

3,600

6,600

7,400

8.000

7,200

7,200

7,200

6,800

5,800 

4,000

5,200

5,400

4,700

4,000

3,500

3,100

2,700

3,300

3,500

3,100 

3,400

144,250

4,653

-453

Apr.

5.200

6,000

6,400

7,400

9,560

12,900 

18,000

17,300

14,100

13,700

17,500

20,600

19,600

20,100

30,900

59,500

38,500

31,100

27,300 

29,900

24,600

19,600

19,100

18,400

18,100

*18,000

17,000

16,100

14,100

13,200

_ -- ___

563,560

18,790

+1,614

May

11,400

11,900

12,500

12,200

12,200

12,700 

12,400

10,000

12,500

15.500

11,800

9,280

7,700

6,320

3,160

4,950

5,180

4,520

4,540 

4.O5O

3,140

2,830

3,500

3,890

4,070

6,350

5,850

4,010

2.460

2,530

3 , 980

225,210

7,265

+787

June

11,700

*16,400

12,700

8,160

4,700

5,000 

5,020

4,440

4,140

3,070

2,780

2,050

4,840

7,740

10,800

11,200

9,400

5,040

1,610 

2 , 6ffO

2,840

4,410

4,510

4,640

4,420

3,440

3,620

3,620

3,020

2,780

_ --__

170,770

5,692

+416

July

2,600

2.640

1,810

1,120

990

2,170 

2,080

1,580

957

847

*771

1,670

1,340

1,240

761

652

740

1,430

1,640 

1,360

1,240

913

524

500

524

1,000

1,560

1,470

1,420

564

495

38,606

1,245

-64.7

Aug.

500

753

722

553

424

388 

337

1,060

1,180

2,050

2,520

5,090

2,550

3,960

4,400

4,600

6,100

7,070

7,040 

3,370

2,560

2,500

2,680

4,920

4,560

3,220

2,260

1,960

2,000

2,060

2, 890

83,837

2,704

-28.0

Sept.

2,420

2,350

2,500

1,520

770

1,370 

2,140

*1,890

1,850

1,220

450

1,290

1,840

1,550

1,710

*1,560

472

465

1,040 

1,440

1,500

1,390

1,400

1,110

493

1,520

1,710

1,670

1,580

1,640

43,040

1,435

-475

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

6,505 

2.46 

2.84

5,983 

2.26 

2.52

Calendar year 1954: 

Water year 1954-55:

4,338 

1.64 

1.89

2,713 

1.03 

1.18

2,312 

0.874 

0.91

4,200

1.59 

1.83

Observed

20,400

7.72 

8.61

8,052 

3.05 

3.51

Max 47,500 Min 600 Mean 7,155 

Max 39,300 Min 337 Mean 5,487

6,108 

2.31 

2.58

1,181 

0.447 

0.51

2,676 

1.01 

1.17

962 

0.364 

0.41

Adjusted

Mean 7,169 Cfsm 2.71 In. 36.81 

Mean 5,446 Cfsm 2.C6 In. 27.96

Peak discharge (base, 25,000 cfs).--Apr. 17 (1 to 2 a.m.) 40,500 cfs (12.95 ft).

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in First Connecticut and Second 

Connecticut Lakes, Lake Francis, Comerford Station Pond, and Moore Reservoir.

Note.--Stage-discharge relation affected by ice Dec. 21 to Jan. 1, Jan. 3 to Feb. 5, Feb. 7 to 

Apr. 4.
166 CONNECTICUT RIVER BASIN

Wells River at Wells River, Vt.

Location.--Lat 44°09'05", long 72°04 t OO", on right bank 800 ft upstream from railroad

bridge, 0.8 mile west of village of Wells River, Orange County, and 1.5 miles upstream 

from mouth.

Drainage area. 98.4 sq mi.

Records available. August 1940 to September 1955.

Gage. Water-stage recorder. Datum of gage is 505.53 ft above mean sea level, datum of 

1929 (levels by Connecticut River Power Co.).

Average discharge. 15 years, 145 ofs .

Extremes. Maximum discharge during year, 1,580 cfs Apr. 15 (gage height, 5.29 ft); minimum, 11 cfs Aug. 4,5; minimum daily, 15 cfs Aug. 5.

1940-55: Maximum discharge, 3,230 cfs June 2, 1952 (gage height, 8.12 ft), from 

rating curve extended above 1,300 cfs on basis of computation of peak flow over dam; 

minimum, 5.1 cfs Oct. 6, 1948; minimum daily, 8.3 cfs Sept. 5, 1953.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are fair. Some diurnal fluctuation at low flow caused by small powerplant 

above station. Plow partly regulated by Groton and Ricker Ponds.

Revisions (water years). WSP 1171: Drainage area. WSP 1201: 1942 (P), 1944-48(P) , 1950.

Rating table, water year 1954-55, except periods of ice effect (gaje 

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

1.3 

1.6 

1.9 

2.2 

2.6

102

194

3.0 

3.5 

4.0 

5.0 

6.0

311

517

780

1,400

2,010

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Cfsm

In.

Oct.

66

65

65

116

146

106

106

91

81

84

*112

*133

108

88

79

128

129

102

90

84

78

76

70

67

64

62

69

137

112

131

137

2,982

96.2

0.978

1.13

Nov.

118

102

106

257

200

156

135

124

106

88

84

87

82

75

78

70

72

*74

70

90

310

350

210

165

150

135

125

130

165

170

4,084

136

1.38

1.54

Dec.

150

125

110

94

100

*80

84

80

80

84

80

74

76

66

105

90

76

200

340

190

150

140

135

130

115

120

105

110

240

190

160

3,879

125

1.27

1.47

Jan.

130

130

125

115

105

110

100

90

86

82

80

78

76

74

72

76

70

66

64

60

58

58

62

*60

54

52

54

51

50

47

_46

2,381

76.8

0.780

0.90

Feb.

45

43

41

40

40

41

42

45

50

55

72

90

85

80

75

70

68

65

62

60

65

80

100

180

130

110

100

90

-

2,024

72.3

0.735

0.76

Mar.

115

170

130

110

*100

96

92

84

82

94

180

380

360

195

ISO

220

220

165

145

130

120

118

115

110

110

108

110

97

99

loo

146

4,481

145

1.47

1.69

Apr.

234

*287

318

336

454

642

876

645

450

586

969

966

744

844

1,440

1,380

1,000

768

1,010

1,110

798

635

650

541

*541

620

590

494

407

358

20,693

690

7.01

7.82

May

318

290

266

248

245

242

216

292

520

314

248

208

189

173

154

146

137

120

110

110

102

95

92

94

108

176

116

99

92

126

110

5,756

186

1.89

2.18

June

465

290

194

*144

118

100

87

78

71

65

78

81

106

92

84

70

60

56

52

49

75

106

75

80

166

99

75

64

57

51

3,188

106

1.08

1.20

July

46

44

45

43

*43

54

54

43

37

34

33

27

24

26

26

37

47

34

29

28

24

22

18

21

23

20

21

32

28

21

22

1,006

32.5

0.330

0.38

Aug.

22

19

20

17

I§

24

28

*39

27

22

57

81

46

615

442

133

95

124

94

72

59

51

52

81

58

47

43

39

35

32

Jb

2,525

81.5

0.828

0.95

Sept.

35

31

28

28

27

28

26

*25

24

22_

24

40

40

35

33

34

32

31

45

56

54

50

48

60

11

58

49

58

60

46

1,198

39.9

0.405

0.45

Calendar year 1954: Max 1,250 Min 23 Mean 175 cfsm 1.78 in . 24.20

Water year 1954-55: Max 1,440 Min 15 Mean 148 Cfsm 1-50 in . 20.47

ge (base, 98O cfs).--12 p.m. Apr. 6 to 1 a.m. Apr. 7, 1,O20 cfs (4.40 ft): 

.m. Apr. 12, 1,240 cfs (4.76 ft); Apr. 15 (11:3O p.m.) 1,58O cfs (5.29 ft). 

D.m.) 1.540 cfs fs.PT ft.i.

Peak discharg 

Apr. 11 to 1 a 

(9:30 t

12 p.m. 

Apr. 19
CONNECTICUT RIVER BASIN 167

Ompompanoosuo River at Union Village, Vt.

Location.--Lat 43°47 I 20", long 72°15'20", on right bank 100 ft upstream from covered 

bridge at Union Village, Orange County, a quarter of a mile downstream from Avery 

Brook, and 0.3 mile downstream from Union Village Reservoir.

Drainage area. 130 sq mi.

Records available. September 1940 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 435 ft (from topographic map).

Average discharge. 15 years, 203 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 1,690 cfs Apr. 16 (gage height, 7.05 ft); minimum, 21 cfs Aug. 5; minimum daily, 22 cfs Aug. 4, 5.

1940-55: Maximum discharge, 4,800 cfs June 3, 1947 (gage height, 9.65 f';) , from 

rating curve extended above 2,400 cfs on basis of slope-area determination of peak 

flow; minimum, 1.7 cfs Oct. 14, 1949; minimum daily, 2.0 cfs Oct. 20, 1949.

Maximum stage known, about 14.5 ft in November 1927, from information by local 

resident.

Remarks.--Records fair. Flow regulated by Union Village Reservoir (see p. 232) since 

October 1949. Some regulation by Lake Pairlee.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Apr. 11 Apr. 12 to Sept. 30

3.5 74

3.9 136

4.4 291

5.0 515

6.0 995

7.0 1,650

2.9 22

3.2 43

3.5 82

4.0 175

5.0 495

6.0 940

7.0 1,650

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

106 

102

102

103

*153

114

118

108

102

102

122

134

114

103

99

176

143

116

108

105

100

94

90

89

82

82

86

113

102

141

132

3,441

111

+0.07

Nov.

116 

106

170 

394

*239

191

182

168

143

134

130

128

124

118

100

93

106

120

1O8

208

596

543

402

312

288

253

249

249

344 

409

6,723

224

+2.62

Dec.

361 

308

232 

a!75

a!65

a!40

a!25

a!60

a!75

a200

a235

a200

a!60

*124

299

221

136

326

600

350

242

210

8170

a!30

a!85

a!75

a!80

*185

253 

205

225

6,852

221

-0.22

Jan.

166

Tee

168 

148

135

136

135

120

110

110

110

105

96

96

105

105

100

96

95

95

92

90

90

86

84

82

*80

75 ii

74

3,298

106

+1.16

Feb.

74 

72

70 

68

66

65

95

75

70

70

80

110

60

77

95

92

90

85

80

70

85

105

135

277

190

120

118

136

-

2,730

97.5

-0.45

Mar.

257 

316

225 

150

153

150

140

105

120

192

274

471

372

347

344

420

428

316

288

242

*274

225

?n s

208

185

182

182

171

128 

231

7,591

245

-0.15

Apr.

420

543

735 

595

695

896

1,190

1,140

850

978

1,400

1,430

1,100

1,050

1,490

647

171

668

1,340

1,490

1,450

1,320

982

5P5

633

*663

654

554

488

429

26,786

893

-2.39

May

385 

358

338 

305

298

292

254

348

314

260

227

203

200

185

164

151

141

131

122

113

105

96

92

95

114

*185

120

108

104

219

149

6,176

199

-0.30

June

385 

230

175 

149

143

124

106

100

93

85

82

114

157

126

113

90

72

63

57

*J51

62

105

100

227

238

192

129

101

85

74

3,828

128

-0.31

July

62 

190

' 255 

119

106

192

151

105

84

73

60

51

44

41

38

59

77

54

65

43

38

34

32

31

30

30

34

62

35

30

_£b

2,251

72.6

-0.30

Aug.

25 

25

24 

22

22

38

36

41

30

26

229

170

183

406

963

1,500

*721

340

82

82

82

515

185

210

141

119

126

110

92

85

106

6,736

217

+0.37

Sept.

*92 

78

68 

64

60

57

53

48

46

44

44

5O

46

41

40

40

38

37

35

35

35

32

30

54

63

44

39

46

5O

48

1,457

48.6

-0.35

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

111 

0.854 

0.98

227 

1.75

1.95

Calendar year 1954: 

Water year 1954-55:

221 

1.70 

1.96

108 

0.831 

0.95

97.0 

0.746 

0.78

245 

1.88 

2.17

890 

6.85 

7.64

199 

1.53 

1.76

Observed

Max 1,380 Min 18 Mean 260 

Max 1,500 Min 22 Mean 213

127 

0.977 

1.09

72.3 

0.556 

0.64

218 

1.68 

1.93

48.2 

0.371 

0.41

Adjusted

Mean 260 Cfsm 2.OC In. 27.19 

Mean 215 Cfsm 1.64 In. 22.26

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Union Village Reservoir.

a No gage-height record; discharge estimated on basis of weather records, recorded range in 

stage and records for Union Village Reservoir, White River at West Hartford, and Ottauqueehee 

River at North Hartland.

Mote.--Stage-discharge relation affected by ice Dee. 17, 22, Jan. 5, Jan. 7 to Feb. 23, Feb. 26, 

Mar. 3, 4. 7-9.
168 CONNECTICUT RIVER BASIN

White River near Bethel, Vt.

Location. Lat 43°48'45", long 72°39'25" ) on right bank a third of a mile upstream from 

Locust Creek and if miles southwest of Bethel, Windsor County.

Drainage area.--241 sq ml.

Records available. June J.931 to September 1955 (discontinued).

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. 24 years, 494 cfs.

Extremes. Maximum discharge during year, 8,440 cfs Apr. 15 (gage height, 6.86 ft), from 

rating curve extended above 4,200 cfs on basis of slope-area determination at gage 

"height 11.46 ft; maximum gage height, 8.62 ft Mar. 11 (ice jam); miniirum discharge, 

46 cfs Aug. 1,2.

1931-55: Maximum discharge, 32,200 cfs Sept. 21, 1938 (gage height, 11.46 ft, 

present datum), from rating curve extended as explained above; 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 ice effect, shifting control, and 

fragmentary, doubtful, or no gage-height record, all of which are fair.

Revisions (water years).--WSP 756: Drainage area. WSP 801: 1933(M) .

Rating table, water year 1954-55, except periods of ice effect or shiftingcontrol (gage height, in feet, and discharge, in cubic feet per second)

1.2 

1.4 

1.7 

2.1 

2.5 

3.0

71

127

264

477

875

4.0 

5.0 

6.0 

7.0

1,390

2,060

3,680

5,880

8,890

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

236

232

248

240

312

260

268

244

232

232

323

353

299

268

252

356

308

273

256

268

252

232

220

210

199

192

231

"295 376

348

348

8,363

270

1.12

1.29

Nov.

304

211

f 1,780

*f2.190

1,240

911

726

620

553

477

439

414

375

358

338

308

308

364

392

539

1,310

1,550

938

742

668

598

546

539

692

700

21,196

707

2.93

3.27

Dec.

605

539

460

300

386

300

*350

338

348

358

345

285

295

235

575

505

335

f647

fl,260

f803

660

480

410

491

380

330

410

414

f 1.400

1,000

812

16,056

518

2.15

2.48

Jan.

640

620

568

*518

430

470

380

340

310

348

290

305

320

280

260

280

260

250

240

210

180

190

200

190

180

190

210

200

190

180

175

9,404

303

1.26

1.45

Feb.

170

160

155

150

145

150

165

165

155

150

170

240

250

210

*215

205

200

195

190

190

200

220

350

700

500

400

350

330

6,680

239

0.992

1.03

Mar.

600

900

650

500

450

390

350

310

350

500

900

.700

,390

,060

974

,340

,260

940

812

720

692

*636

590

532

491

471

452

403

390

414

560

21,727

701

2.91

3.35

Apr.

803

1/250

1,350

1,060

1,180

2,100

2,620

1,840

1,400

2,510

3,740

2,940

2,100

2,710

7,510

4,550

2,830

2,210

3,070

2,830

2,090

1,750

*1,750

1,410

1,670

1,640

1,320

1,100

1,000

1,010

65,143

2,171

9.01

10.05

May

965

857

803

717

700

644

546

697

660

553

484

427

403

375

338

308

286

273

252

244

228

213

206

202

237

*440

264

224

220

426

291

13,483

435

1.80

2.08

June

1.500

785

546

414

355

295

256

236

217

199

181

185

250

252

228

185

155

158

125

118

*158

199

178

265

298

220

165

138

118

107

8,240

275

1.14

1.27

July

103

276

281

155

135

280

291

ITS

135

116

101

91

82

79

74

100

118

85

87

84

73

66

62

62

60

58

56

79

64

54

52

5,557

114

0.475

0.55

Aug.

11

58

60

62

62

80

72

100

86

80

180

150

f750

1,640

*466

350

580

280

250

200

180

160

150

170

140

120

160

140

120

110

120

6,925

225

0.925

1.07

Sept.

140

120

100

94

86

80

76

74

72

7O

67

72

85

78

74

70

66

62

60

58

54

52

50

80

140

105

90

80

95

92

2,442

81.4

0.538

0.38

Calendar year 1954: Max 4,800 Min 59 Mean 596 Cfsm 2.47 In. 33.57

Water year 1954-55: Max 7,310 Min 47 Mean 502 Cfsm 2.08 m. 28.27

Peak discharge (base. 5.600 cfs). Apr. 15 (6:15 a.m.) 8,440 cfs (6.86 ft).

* Discharge measurement made on this day.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note. No gage-height record Feb. 24, Aug. 26 to Sept. 50; discharge estimated on basis of weather 

records, and records for station at West Hartford. Doubtful or no gage-height record Aug. 2-12, 

16-25) discharge estimated on basis of recorder graph, weather records, and records for station at 

West Hartford. Stage-discharge relation affected by ice Dec. 5, 4, 6, 7, 11-15, 17, 21-23, 25-27, 

29, 30, Jan. 1, ~i, 5, 6, 8, 9, Jan. 11 to Mar. 12, Mar. 18, 20, 29. Shifting-control method used 

Aug. 13-15.
CONNECTICUT RIVER BASIN 169

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 1955.

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. 16 years, 48.1 cfs.

Extremes.--Maximum discharge during year, 758 cfs Apr. 10 (gage height, 4.13 ft); minimum, 1.7 cfs Aug. 5.

1939-55: Maximum discharge, 3,490 cfs June 1, 1952 (gage height, 7.58 ft), from 

rating curve extended above 500 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 for periods of backwater from debris, which are 

good, and those for periods of ice effect, which are fair.

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Apr. 1O Apr. 11 to Sept. 3O

0.7

.9

1.1

1.5

2.0 

2.5 

3.0 

3.5

129

212

330

490

0.1 

.2 

.3 

.5 

.9

1.2

1.6 

2.6 

3.9 

8.5

1.5 

2.0 

2.5 

3.0 

3.5

121 

207 

330 

49O

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

28

28

28

43

46

33

35

32

31

32

37

36

32

30

28

33

30

28

26

27

26

25

24

23

22

22

29

*32

28

33 

31

938

30.3

0.993

1.14

Nov.

28

26

FT

110

66

54

48

45

42

39

37

37

34

34

34

32

32

37

36

55

111

101

69

61

61

60

57

59

97

*85

1,674

55.8

1.83

2.04

" Dec.

70

60

53

45

47

34

42

41

40

42

40

35

37

33

ST

54

40

97

107

69

56

52

5O

53

43

40

46

49

~62~ 12O

57

1,695

54.7

1.79

2.07

Jan.

47

52

41

*47

43

47

40

36

35

39

32

31

33

30

28

29

28

26

25

24

21

24

24

23

20

20

22

1920"

20

19

953

30.7

1.01

1.16

Feb.

18

17

16

16

17

18

18

*18

19

19

20

21

21

19

20

20

20

20

19

19

18

19

42

58

35

29

29

29

-------

634

22.6

0.741

0.77

Mar.

44

54

37

32

32

32

30

29

30

52

90

~B5 115

74

*79

112

98

76

68

65

67

63

61

55

54

54

53

45

52

52

73

1,863

60.1

1.97

2.27

Apr.

112

154

140

135

177

320

357

247

224

398

484

368

266

273

486

405

270

214

*294

250

192

160

*152

129

176

169

142

121

106

93_

7,014

234

7.67

8.55

May

84

TG

70

64

65

58

53

72

62

52

46

43

43

40

37

35

34

32

31

30

29

28

26

26

30

*36

28

27

27

34

26

1,344

43.4

1.42

1.64

June

~46 100

36

31

29

26

24

24

22

21

19

22

23

22

21

18

16

14

13

12

*16

18

14

12

16

17

12

11

8.5

7.7

671.2

22.4

0.734

0.82

July

7.2

6.9

7.7

6.4

5.7

11

TT

7.2

5.7

5.3

4.5

3.9

3.8

3.6

3.6

7.6

7.5

5.1

4.5

3.9

3.4

3.0

2.9

2.9

2.9

*2.6

2.7

3.6

3.2

2.6

2.4

154.3

4.98

O.163

0.19

Aug.

2.3

2.3

2.0

1.8

iTF

2.4

2.6

5.3

3.4

2.7

5.0

6.4

19

44

17

11

8.0

34

15

11

8.0

6.4

6.4

8.2

6.4

5.9

7.2

7.2

5.3

*5.1

6.7

269.8

8.70

0.285

0.33

Sept.

5.9

5.1

4.7

4.3

4.1

4.3

3.9

3.6

3.5

3.4

3.4

4.9

4.9

3.9

3.6

3.6

3.5

3.4

3.5

3.0

2.9

2.9

2.9

7.6

9.6

5.9

4.9

5.9

6.9

5.7

135.7

4.52

0.148

0.17

Calendar year 1954: Max 341 Min 7.7 Mean 55.6 Cfsm 1.82 In. 24.74

Water year 1954-55: Max 486 Min 1.8 Mean 47.5 Cfsm 1.56 In. 21.15

Peak discharge (base, 550 cfs). ftpr. 6 (9 p.m.) 646 cfs (3.88 ft); Apr. 10 (9 p.m.) 758 efs 

(4.13 ft); Apr. 15 (8:3O a.m.) 546 cfs (3.64 ft); Apr. 19 (7 p.m.) 458 cfs (3.41 ft).

* Discharge measurement made on this day.

Note . Stage-discharge relation affected by ice Dec. 4, 6, 7, 12, 14, 17, 21-24, 27, Dec. 30 to 

Jan. 2, Jan. 5, Jan. 8 to Mar. 15, Mar. 18-20, 28-30. Backwater from debris Oct. 1-28, Apr. 27 to 

May 26.
170 CONNECTICUT RIVER BASIN

White River at West Hartford, Vt.

Location. Lat 43°42'45", long 72°25'10", on left bank 500 ft upstream from highway 

bridge at West Hartford, Windsor County, and 7 miles upstream from mou*--h.

Drainage area. 690 sq mi.

Records available. June 1915 to September 1955. 

discharge only, published in WSP 1301.

October 1927 to SeptembBr 1928 monthly

Gage . --Water-stage recorder. Datum of gage is 374.53 ft above mean sea level, datum of 

1929. Prior to Oct. 30, 1927, staff gage at same site and datum.

Average discharge. --4Q years, 1,205 cfs.

Extremes . --Maximum discharge during year, 14,800 cfs Apr. 15 (gage height, 11.87 ft); 

maximum gage height, 12.85 ft Mar. 12 (ice jam); minimum discharge, 107 cfs Aug. 1 

(gage height, 2.71 ft); minimum daily, 110 cfs Aug. 1.

1915-55: Maximum discharge, 120,000 cfs Nov. 4, 1927 (gage height, 29.3 ft, from 

floodmarks), from rating curve extended above 29,000 cfs on basis of slope-area determination of peak flow; minimum observed, about 35 cfs Aug. 4, 1918 (ga?e height, 

2.22 ft); minimum daily, 64 cfs Aug. 4, 1918.

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

diurnal fluctuation at low flow caused by powerplant above station.

Revisions (water years ) . --WSP 756: Drainage area. WSP 781: 1928(M). WSP 1031: 

1916 (m), 1923. WSP 1301: 1916-26 (M), 1929 (M).

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

2.7 

3.0 

3.5 

4.0 

4.5

105

183

366

600

920

5.0

6.0

8.0

10.0

12.0

1,340 

2.4OO 

5,630 

9,600 

15,200

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

570 

570

560

565 

780

679

650

622

580

570

638

815 685"

606

560

715

734

622

585

590

580

545

510

491 

460

455

478

774

*661 

774

774

19,198

619

0.897

1.03

Nov.

685 

616

1,940

4,600 

2,410

,760

,450

,250

,140

,010

928

906 

822

794

767

697

703

728

857

1,120

2,390

3,400

2,030

1,660 

1,530

1,460

1,370

1,330

1,640 

*1,920

43,913

1,464

2.12

2.37

Dec .

1,660 

1,420

1,230

880 

1,150

730

860

920

960

1,020

976

794 

800

661

1,300

1,620

1,050

1,250

3,150

2,200

1,600

1,300

1,020

1,400 

1,100

770

1,170

*1,180

2,850 

2,320

1,830

41,171

1,328

1.92

2.22

Jan.

,480 

,480

,380

,240 

,080

,070

,020

820

740

920

720

680 

810

720

630

720

720

630

600

540

490

500

530

520 

480

520

*560

500

490 

480

470

23,540

759

1.10

1.27

Feb.

450 

430

410

380 

360

380

430

430

390

380

400

600 

670

600

560

540

520

520

500

500

500

560

740

1,900 

1,500

1,100

900

840

-

17,490

625

0.906

0.94

Mar.

1,400 

2,500

1,900

1,300 

1,200

1,050

900

800

850

1,300

2,200

4,000 

3,300

2,500

2,270

3,000

3,020

2,130

1,920

1,620

1,790

*1,560

1,490

1,340 

1,280

1,260

1,170

1,050

980

1,110 

1,530

53,720

1,733

2.51

2.90

Apr.

2,310 

3,340

3,940

2,960 

3,570

5,480

7,520

5,550

4,320

6,530

9,500

8,250 

6,140

6,360

15,400

10 , 800

7,230

5,590

*6,840

6,850

5,370

4,220

4,220

3,550 

3,910

4,370

3,710

3,120

2,680

164,150

5,472

7.93

8.85

May

2,360 

2,140

1,980

1,800 

1,750

1,750

1,500

1,680

1,710

1,480

1,310

1,180 

1,100

1,060

952

885

822

760

703

679

628

585

555

550 

555

972

722

600

580 

1,070

*801

35,199

1,135

1.64

1.90

June

2,160 

1,740

1,230

952 

822

715

616

585

545

500

450

468 

580

585

555

468

406

362

326

314

330

500

*450

515 

954

611

482

388

334

298

19,221

641

0.929

1.04

July

275 

324

568

566 

502

496

638

424

326

271

242

212 

195

186

180

196

502

242

215

205

183

166

151

144 

144

144

160

229

*177 

146

121

7,928

256

0.371

C.43

Aug.

"Ul 110 

144

151 

151

186

171

189

232

180

429

655 

794

5,720

1,420

829

878

667

658

520

424

566

558

406 

554

314

379

370

*510 

271

302

16,059

518

0.751

0.87

Sept.

326

275

242

218 

212

202

189

183

177

171

163

180 

209

189

177

171

165

154

151

149

133

128

126

180 

326

268

205

199

229 

225

5,920

197

0.286

0.32

Calendar year 1954: Max 9,400 Mln 140 Mean 1,497 Cfsm 2.17 In- 29.46

Water year 1954-55: Max 13,400 Mln no Mean 1,226 Cfsm 1.73 In. 24.14

Peak discharge (base. 11.600 cfs).--Apr. 11 (10:30 to 11:30 p.m.) 12,000 cfs (10.86 ft); Apr. 15 

(9:50 to 10 a.m.) 14,800 cfs (11.87 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 4-8, 15, 15, 18-27, 29, Jan. 6 to Mar. 13, 

Mar. 27-29.
CONNECTICUT RIVER BASIN 

Connecticut River at White River Junction, Vt.

171

Location. Lat 43°38'5Q", 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 1955.

Gage.--Water-stage recorder. Datum of gage is 321.52 ft above mean sea level, datum of 

1929. Prior 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. 44 years, 7,248 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 50,400 cfs Apr. 16 (gage height, 19.8? ft); 

minimum daily, 166 cfs July 31.

1911-55: Maximum discharge, 136,000 cfs Nov. 4, 1927 (gage height, 35.0 ft, present 

site), from rating curve extended above 70,000 cfs by logarithmic plotting; minimum 

daily, 115 cfs Aug. 2, 1953.

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, Union Village Reservoir (see p. 232), and other reservoirs (combined usable capacity, about 12v billion cubic feet).

Revisions (water years). WSF 741: 1932 (adjusted monthly and yearly figures orly). 

WSP 781:1928JM).WSP891: Drainage area. WSP1301: 1922-26(M).

Rating table, water year 1954-55, except periods of ice effot (gage 

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

2.6 

3.0 

3.5 

4.0 

5.0

150

312

630

1,040

2,160

6.0

8.0

12.0

16.0

20.0

3,730

8,180

20,000

34,300

51,200

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

 total

Mean

(t)

Oct.

6,100 

5,600

5,500

9,000

16 , 000

gl6,800

gl2[600

glO,500

6,800

6,800

8,870

8,790

7,940

9,290

7,830

6,520

8,750

7,410

5,950

5,640

6,130

4,210

2,880

5,190

4,870

5,840

6,660

8,050

7,400

4,300

242,620

7,826

+55.0

Nov.

6,580 

6,440

8,500

12,500

12,000

9,260 

6,320

6,790

7,110

6,440

6,200

6,400

3,930

2,510

6,310

5,430

5,680

5,560

4,830

8,000

15,000

g21,700

g20,400

g 15, 900

g!2,300

g9,360

8,500

6,000

8,400

12 000

__ _

266,150

8,872

-102

Dec.

11,500 

9,200

7,400

4,300

3,000

5,900 

5,400

5,800

6,500

7,600

7,640

3,350

5,900

6,720

.7,440

8,720

7,670

7,420

13,900

11,300

11,600

8,710

7,470

6,570

6,250

4,440

6,420

7,850

10,800

11,100

11,100

238,970

7,709

-783

Jan.

8,740 

7,360

8,420

7,900

7,070

7,240 

6,990

5,300

4,000

5,200

5,800

6,300

6,700

6,400

4,300

3,000

4,650

5,000

5,400

5,100

4,700

3,700

1,250

4,200

3,900

3,500

3,650

3,600

2,800

1,700

3,200

157,070

5,067

-937

Feb.

3,300 

3,700

3,000

2,600

1,700

1,100 

*3,300

3,600

3,300

3,100

3,800

2,000

2,500

4,500

4,300

4,300

3,600

4,700

3,800

1,590

4,000

3,100

5,320

8,710

9,200

7,240

6,130

7,630

_

_-_ -

115,120

4,111

-509

Mar.

8,600

11,500

9,400

7,440

6,750

3,160 

5,800

5,000

5,610

5,700

8,870

13,000

14,000

*13,000

12,900

13 , 600

13,800

12,500

10,700

8,220

8,390

8,830

8,520

7,660

6,900

6,180

4,720

5,640

5,660

5,740

6,740

264,530

8,533

-454

Apr.

9,980 

12,900

14,400

13,800

16,100

21,400 

29,000

28,600

23,700

24,600

30,600

33,800

31,000

30,600

43,300

49,400

49,100

46 , 700

*43,000

43 , 300

40,000

33,600

28,900

26,100

25,500

26 , 400

24,600

23,000

20,300

18,600

862,280

28,740

+1,611

May

16,500

14^300

15,600

15,200

15 , 60O 

16 , 000

14,200

14 , 400

16,100

15,400

12,200

10,800

10,300

6,170

6,560

6,220

6,350

5,840

5,900

4,750

2,990

4,280

4,700

4,840

7,140

8,580

6,140

3,420

4,870

5,620

296,770

9,573

+787

June

14,200 

20,000

16,500

11,000

7,950

7,100 

7,070

5,510

5,690

3,220

2,160

3,240

6,980

9,200

11,000

11,700

10,500

8,060

2,480

4,020

3,580

5,300

6,220

5,720

6,590

3,730

5,260

5,900

3,760

2,970

216,610

7,220

+416

July

5,650 

3,210

1,700

2,540

2,440

2,750 

5,400

2,540

g464

546

2,210

2,290

1,520

1,780

2,020

g282

g553

2,140

2,100

2,020

1,780

1,750

g260

g!83

1,410

1,500

1,640

2,530

1,840

g231

gl66

53,OU5

1,710

-65.0

Aig.

1,310 

1,170

938

871

914

g225

g210

1,880

r,090

2,470

5,820

4,630

5,060

12,100

8,560

8,280

8,800

10,300

10,400

6,170

1,740

3,230

4,400

6,360

5,390

4,690

3,250

1,990

3,440

5,600

5,480

155,768

4,515

-27.7

Sept.

3,790 

5,480

1,470

g385

550

5,100 

5,050

2,310

1,920

gg51

346

2,440

2,060

1,780

2,030

1,820

541

g255

5,980

2,990

1,200

1,500

1,740

618

g565

1,910

1,520

2,460

2,280

2,050

54,189

1,806

-473

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

7,881 

1.93 

2.22

8,769 

2.14 

2.39

Calendar year 1954: 

Water year 1954-55:

6,926 

1.69 

1.95

4,130 

1.01

1.16

5,602 

0.880 

0.92

8,080 

1.97 

2.28

30,550 

7.42 

8.28

10,560 

2.55 

2.92

Observed

Max 49,700 Mln 672 Mean 9,996 

Max 49,400 Mln 166 Mean 7,948

7,636 

1.87 

2.08

1,645 

0.402 

0.46

4,287 

1.05 

1.21

1,353 

0.526 

0.36

Adjusted

Mean 10,010 Cfsm 2.45 In. 53.20 

Mean 7,907 Cfsm 1.93 In. 26.23

Peak discharge (base. 34,000 cfs).--Apr. 16 (7 to 9 a.m.) 50,400 cfs (19.82 ft).

* Discharge measurement made on this day.

t Change In contents In First Connecticut and Second Connecticut Lakes, Lake Francis, Comerford 

Station-Pond, Moore Reservoir, and Union Village Reservoir, equivalent In cuble feet per second.

g Computed from twice-daily wire-weight-gage readings.

Note.--No gage-height record Oct. 1-5, 10, 11, Nov. 11, 12, 20, 21, Nov. 27 to Dec. 9, Feb. 25j 

discharge estimated on basis of recorded range In stage when available, weather records, powerplant 

records, and records for White River at West Hartford. Stage-discharge relation affected by Ice 

Jan. 8 to Feb. 19, Feb. 21, 22, Mar. 7, 8.
172 CONNECTICUT RIVER BASIN

Mascoma River at West Canaan, N. H.

Location. Lat 43°39 I 00", long 72°04'5Q", on right bank 45 ft downstream from Boston

& Maine Railroad bridge, 0.9 mile east of West Canaan, Grafton County, 1.2 miles downstream from Indian River, and 8-5- miles west of Canaan.

Drainage area. 80.5 sq mi.

Records available.--July 1939 to September 1955.

G-age. Water-stage recorder. Altitude of gage is 835 ft (from topographic map).

Average discharge.--16 years, 124 cfs.

Extremes. Maximum discharge during year, 1,790 cfs Aug. 14 (gage height, 6.21 ft); minimum, 9.3 cfs Sept. 22-24.

1939-55: Maximum discharge, 3,780 cfs Mar. 27, 1953 (gage height, 8.94 ft), from 

rating curve extended above 1,900 cfs on basis of slope-area determination at gage 

height 9.6 ft; minimum, 3.3 cfs Aug. 3, 4, 1953.

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 as explained above).

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

which are fair.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

1.5 

2.0

Oot. 1 to Dec. 19, 

June 1 to Sept. 3O

2.5

3.0 

4.0 

5.0 

6.0

205

320

635

1,070

1,640

Dec. 20 to May 31

1.0 

1.2 

1.5 

2.0

2.5 230

3.0 356

4.0 675

5.0 1,100

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cf sm

Oct.

60

55

59

62

63

57

58

53

50

50

66

77

65

56 

52

-55 114

74

65

61

56

51

48

46

43

42

42

56

57 

99

103

1,935

62.4

0.775

0.89

Nov.

*85

75

248

526

307

199

152

130

117

100

91

88

80

76 

74

65

66

67

68

139

366

456

264

197

168

150

138

134

188 

250

5,064

169

2.10

2.34

Dec.

216

157

130

105

105

80

90

94

96

100

90

77

*74

T4 

280

378

233

229

540

372

257

210

170

160

115

92

115

115

145 

145

140

5,184

167

2.07

2.39

Jan.

115

TIE

*113

110

90

94

74

67

69

76

64

62

64

52 

54

58

54

52

50

42

37

40

42

42

40

40

38

35

35 

32

30

1,883

60.7

0.754

0.87

Feb.

29

27

26

26

26

27

38

61

58

54

56

86

91

75

60

*51

46

44

42

41

40

43

70

120

150

100

78

75

1,620

57.9

0.719

0.75

Mar.

140

270

210

140

120

105

90

78

74

70

190

390 255"

200 

180

245

294

222

168

150

*137

119

118

112

107

100

97

93

96 

96

148

4,839

156

1.94

2.24

Apr.

232

302

342

278

359

454

570

454

342

380

647

706

505

454

709

814

570

439

451

658

466

368

362

317

317

*418

410

350

330 

290

13,294

443

5.50

6.14

May

270

230

210

190

180

160

140

145

145

130

120

110

100

105 

95

82

80

74

70

65

60

57

56

55

56

120

90

80

75 

300

*259

3,859

124

1.54

1.78

June

500 230"

190

140

115

95

75

65

56

48

45

70

280

175 

140

100

72

56

47

43

44

60

85

*72

120

95

78

61

49

41

3,297

110

1.37

1.52

July

36

36

76

48

37

98

101

59

44

36

31

26

24

23 

21

22

23

21

21

21

17

*15

14

13

13

12

17

117 -53 

31

23

1,129

36.4

0.452

0.52

Aug.

19

17

15

13

13

40

29

26

19

15

135

264

203

1,580 

765

280

195

260

195

138

100

79

72

69

59

52

48

44

38 

34

34

4,850

156

1.94

2.24

Sept.

33

30

28

26

24

*22

22

20

19

18

17

17

17

15 

15

14

14

13

13

11

10

9.3 9T3-

20

3_7_

24

19

22

30 

23

591.6

19.7

0.245

0.27

Calendar year 1954 : Max 1,440 Mln 8.8 Mean 166 Cfsm 2.06 Ir. 27.99

Water year 1954-55; Max 1,580 Mln 9.3 Mean 130 Cfsm 1.61 Ir 21.95

Peak discharge (base, 950 cfs).--Aug. 14 (11:30 a.m. to 12:30 p.m.) 1,790 cfs (6.21 ft).

* Discharge measurement made on this day.

Note. No gage-height record Apr. 27 to May 30, June 1-26; discharge estimated on basis of 1 discharge measurement, weather records, recorded range In stage when available, and records for Baker 

River near Rumney and Sugar River at West Claremont. Stage-discharge relation Effected by Ice 

Dec. 3-12, 15, Dec. 22 to Jan. 3, Jan. 5 to Mar. 15.
CONNECTICUT RIVER BASIN 173

Mascoma River at Mascoma, N. H.

Location. Lat 43°39'00", long 72°11 I 05", on left bank at Mascoma, Grafton County, 250 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 1955.

Gage..--Water-stage recorder. Altitude of gage is 740 ft (from topographic map).

Average discharge.--32 years, 219 cfs (adjusted for storage since October 1928).

Extremes.--Maximum discharge during year, 1,600 cfs Aug. 15 (gage height, 3.93 ft); minimum daily, 64 cfs July 30, Aug. 6.

1923-55: Maximum discharge, 5,840 cfs Mar. 19, 1936 (gage height, 7.50 ft), from 

rating curve extended above 2,500 cfs on basis of computations of flow over dams at 

gage heights 6.85 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, which 

are good. Flow regulated by Mascoma and Crystal Lakes and Goose and Grafton Ponds 

(see p. 232).

Revisions (water years). WSF 726: Drainage area. WSP 801: 1925(M).

Rating tables, water1 year1 1954-55 (gage height, In feet, 

In cubic feet per second)

nd discharge,

Oct. 1 to Nov. 23 Nov. 24 to Sept. 30

1.0 110 0.6 53 2.0 396

1.2 156 1.0 110 3.0 900

1.6 269 1.5 223 4.0 1,660

Discharge, In cubic feet per1 second, water1 year October 1954 to September1 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

(t)

Oct.

177

174

169

164

164

161

159

156

154

151

148

146

144

141

138

134

134

134

131

131

131

129

129

127

125

123

120

118

118 

118

4,366

141

-59.1

Nov.

*118

120

120

129

144

156

1C1

164

164

164

164

164

161

161

161

159

159

151

148

151

156

169

269

416

373

320

288

285

285 

331

5,911

197

+131

Dec.

421

416

347

285

285

*256

238

232

229

226

226

223

220

218

218

223

229

235

308

629

630

426

306

292

288

288

285

282

275

279 

275

9,290

300

-24.5

Jan.

272

272

*269

269

266

259

256

253

247

241

238

232

226

223

218

212

223

229

223

220

218

215

212

210

210

210

210

207

204

204 

201

7,149

231

-147

Feb.

201

199

196

196

196

194

194

191

T§T

191

194

194

196

196

196

*196

196

196

199

199

196

196

199

201

212

215

220

220

-

5,570

199

-102

Mar1 .

229

241

263

285

279

272

272

272

259

263

275

285

299

*320

444

484

476

458

421

369

331

306

279

279

275

259

250

256

285 

288

0

9,562

308

-9.37

Apr.

302" 285

380

458

502

570

703

816

798

720

586

540

769

798

876

1,050

1,080

*1,020

907

870

888

810

512

357

400

437

507

548

556

530

19,575

652

+247

Hay

310

200

210

220

230

241

240

240

240

240

240

220

186

185

180

160

155

140

140

140

140

140

140

135

135

135

*115

72

72

162

5,452

176

+30.4

June

627

792

632

454

388

239

191

186

186

177

138

136

167

279

300

238

178

144

144

*144

144

144

136

128

128

157

184

174

157

150

7,242

241

+2.74

July

148

148

148

148

148

146

148

148

148

146

144

140

138

138

*138

136

134

132

130

128

128

126

124

123

123

121

110

108

98

64

74

4,033

130

-76.5

Aug.

114

112

114

112

108

64

74

112

112

112

112

112

129

851

1,550

1,160

604

400

400

350

188

188

188

186

186

184

181

178

174

171

8,695

280

+24.3

Sept.

164

*162

160

157

153

148

146

142

140

138

136

136

134

132

130

128

124

123

123

121

119

119

117

117

117

117

117

115

115

115

3,965

132

-120

Adjusted for change In reservoir1 contents

Mean 

Cfsm 

In.

81.8 

0.535 

0.62

328

2.14 

2.39

Calendar year 1954: 

Water year 1954-55:

275 

1.80 

2.07

83.6 

0.546 

0.63

96.7 

0.632 

0.66

299 

1.95 

2.25

899 

5.88

6.56

206 

1.35 

1.55

Observed

Max 2,010 Hln 15 Mean 285 

Max 1,550 Win 64 Mean 249

244 

1.59 

1.78

53.6 

0.350 

0.40

305 

1.99 

2.30

12.6 

0.082 

0.09

Adjusted

Mean 302 Cfsm 1.97 In. 26.78 

Mean 240 Cfsm 1.57 In. 21.30

Discharge measurement made on this day.

t Change In contents In Mascoma and Crystal Lakes and Goose and Grafton Ponds, equivalent In cubic 

feet per second.

Note.--No gage-height record May 1-5, 7-12, 14-19, 21-26; discharge estimated on basis of records 

of gate operations and pond elevations at Mascoma Lake.
CONNECTICUT RIVER BASIN

Ottauquechee River at North Hartland, Vt.

Location. Lat 43"36'05", long 72°21'20", on left bank 300 ft upstream from highway bridge 

at North Hartland, Windsor County, 1 mile upstream from mouth.

Drainage area. 221 sq mi.

Records available . October 1930 to September 1955.

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. 25 years, 401 cfs.

Extremes. Maximum discharge during year, about 6,800 cfs Aug. 13 (gage height not determined ); minimum, 8.7 cfs July 31; minimum daily, 11 cfs July 31.

1930-55: Maximum discharge, 24,400 cfs Sept. 21, 1938 (gage height, 17.68 ft), 

from rating curve extended above 6,200 cfs on basis of computations of flow over dams 

at gage heights 15.58, 17.68, and 21.5 ft; minimum, 2.9 cfs July 31, 1953; minimum 

daily, 3.8 cfs July 3', 1933.

Maximum stage known, 21.5 ft in November 1927, from floodmarks (discharge, 30,400 

cfs, by computation of peak flow over dam).

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are fair. Flow regulated by powerplants above station. Small seasonal 

storage in reservoir at Plymouth.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.2 

1.4 

1.6 

1.9 

2.2 

2.5 

3.0

130

262

3.5 

4.0 

4.5 

5.0 

6.0 

8.0

447

685

970

1,360

2,420

5,150

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

136

128

136

172

168

156

152

151

139

147

172

168

160

145

153

198

246

200

182

162

160

155

136

145

150

136

147

199

209

250

259

5,217

168

0.760

0.88

Nov.

237 

200

576

1.440 *724

512

410

352

306

285

262

259

231

219

228

199

203

210

229

392

840

910

595

490

451

418

402

394

550

565

13,089

436

1.97

2.20

Dec .

490 

422

355

255

356

310

290

280

280

*310

280

240

265

220

778

630

400

699

1.180

734

540

440

370

460

340

280

406

394

766

660

560

13,990

451

2.04

2.35

Jan.

430 

425

425

380

320

340

300

270

*240

300

240

240

250

230

220

230

210

200

190

180

160

160

170

170

165

160

165

160

150

145

T5o

7,375

238

1.08

1.24

Feb.

135 

130

125

120

130

125

170

165

150

135

140

180

190

165

*160

160

155

155

150

150

155

160

210

520

380

290

260

250

_

_ - - -- _

5,215

186

0.842

0.88

Mar.

450 

850

520

390

330

3OO

280

260

260

300

640

1.600

1,130

892

856

1,080

998

718

650

580

*605

517

494

460

430

410

390

350

379

440

625

18,184

587

2.66

3.06

Apr.

935 

1,310

1,350

l.OOO

1,190

1,670

2,310

1,770

1,390

2,340

3,440

3,000

2.100

2,300

4.000

3,900

2,500

1,790

1,900

1,850

1,550

1,200

1,250

1,100

*1,200

1,280

1,210

991

868

790

53,394

1,780

8.05

8.99

May

724 

670

630

575

560

530

463

473

477

398

375

341

330

330

288

275

253

237

219

197

191

173

180

173

170

272

*231

183

184

386

295

10,788

348

1.57

1.82

June

435 

375

285

237

214

202

170

153

151

140

130

152

246

228

183

151

130

116

103

*108

107

134

173

145

188

183

158

125

107

100

5,329

178

0.805

0.90

July

92 

72

100

97

97

97

168

12T

94

66

95

59

54

49

52

47

54

83

68

54

52

54

46

26

80

77

78

92

58

44

.U

2,237

72.2

0.327

0.38

Aug.

52 

53

47

47

49

68

89

87

79

62

*219

357

1,250

5.900

940

481

685

522

406

337

265

214

240

231

188

161

153

160

140

140

140

11,762

379

1.71

1.98

Sept.

140 

*145

125

123

116

117

104

105

90

94

86

114

105

99

90

100

94

100

98

93

85

79

77

133

196

132

105

103

118

129

3,295

110

0.498

0.55

Calendar year 1954: Max 3,23O Min 18 Mean 492 Cfsm 2.23 In. 30.18

Water year 1954-55: Max 4,000 Min 11 Mean 411 Cfsm 1.86 In. 25.23

Peak discharge (base. 5.500 cfs). Aug. 13 (about 12 p.m.) about 6,800 cfs.

* Discharge measurement made on this day.

Note.--Ho gage-height record Apr. 12-25, Aug. 13-15, Aug. 28 to Sept. 1; discharge estimated on 

basis of 1 discharge measurement, weather records, and records for Black River at North Springf:.el 

Stage-discharge relation affected by ice Dec. 3, 4, 6-14, 17, 22-26, Dec. 30 to Mar. 12, Mar. 20, 

25-28.
CONNECTICUT RIVER BASIN 175

Sugar River at West Claremont, N. H.

Location. Lat 43°23'15", long 72°21 1 45", on right bank 0.2 mile downstream f-om Redwater 

Brook at West Claremont, Sullivan County.

Drainage area. 269 sq mi.

Records available. May 1928 to September 1955. Published as "at Claremont" prior to 

October 1928.

Gage . Water-stage recorder. Datum of gage is 358.78 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers). Prior to Oct. 1, 1928, chain gage at site 

0.8 mile upstream at different datum.

Average discharge. 27 years, 400 cfs (adjusted for storage).

Extremes . Maximum discharge during year, 5,890 cfs Aug. 14 (gage height, 6.66 ft); minimum daily, 56 cfs Sept. 14.

1928-55: Maximum discharge, 14,000 cfs Mar. 19, 1936 (gage height, 10.92 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; 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. 

regulated by mills above station and by Sunapee Lake (see p. 232).

Revisions (water years) .--WSP 711: 1930(M). WSP 756: Drainage area.

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

Flow

1.1

1.3 

1.6 

2.0 

2.5

45

86

175

325

565

3.0 

4.0 

5.0 

6.0 

7.0

885

1,750

3,020

4,660

6,540

Discharge, In cubic feet per second, water year October 1954 to September I9f5

Day

1

2

3

4

5

6

7

8

9

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.

165

156

156

169

156

153

153

143

137

136

149

162

153

143

137

218

289

234

195

178

169

165

156

149

143

153

169

178

178

245

285

5,372

173

-31.7

Nov.

265

234

*932

1,850

968

724

559

464

407

357

329

317

293

277

273

261

273

285

285

501

1,120

1,270

908

730

631

571

536

524

711

871

17,726

591

+32.8

Dec.

808

661

515

465

475

380

385

370

380

412

403

369

b57

325

840

843

637

845

1.650

1,040

800

620

520

520

440

370

420

420

595

595

530

17,990

580

-48.2

Jan.

460

410

410

370

340

350

300

270

2 SO

290

*240

215

235

190

185

205

200

170

170

150

135

170

160

160

145

160

145

125

150

150

160

7,080

228

-60.9

Feb.

140

130

150

140

140

110

350

340

280

240

270

520

270

*215

200

170

165

150

145

140

145

150

260

470

380

310

260

290

-

6,530

233

+11.2

Mar.

620

1,050

770

553

430

380

340

300

280

325

817

1.570

1,090

857

776

1,090

1,180

796

613

512

*480

399

399

369

357

349

325

293

321

376

589

18,606

6OO

+54.5

Apr.

925

1,230

1,340

998

1,250

1,620

1,840

1,460

1,110

1,420

2.150

1,970

1,530

1,420

2,130

2,080

1,690

1,380

1,260

1,410

1,280

1,210

1,120

975

938

1,580

1,460

*1,340

1,110

975

42,181

1,406

+113

May

836

737

667

601

518

469

435

416

416

373

341

313

289

297

281

265

245

231

216

199

182

178

182

165

175

369

277

238

241

1 '822 350

12,324

398

+14.9

June

1.360

*975

750

595

536

469

403

373

349

277

213

431

922

655

480

369

301

249

223

209

216

253

285

249

394

416

361

281

231

195

13,020

434

-33.2

July

175

T62

169

156

146

128

169

143

*128

116

128

123

77

78

81

108

113

113

116

91

81

74

68

79

79

74

68

81

81

68

66

3,339

108

-58.2

Aug.

72

65

63

63

63

65

68

*77

70

65

129

253

1,060

4.840

2,000

1,040

737

547

536

495

361

289

285

261

213

189

172

175

153

140

134

14,680

474

+29.1

Sept.

131

122

110

108

100

105

94

89

100

76

81

89

75

5670-

74

89

59

65

79

*74

65

63

91

122

110

97

89

102 1-00

2,685

89.5

-59.0

Adjusted for- change In contents In Sunapee Lake

Mean 

Cfsm 

In.

142 

0.528 

0.61

624 

2.32 

2.59

Calendar year 1954: 

Water year 1954-55:

532 

1.98 

2.28

168 

0.625 

0.72

244 

0.907 

0.95

655 

2.43 

2.81

1,519 

5.65 

6.30

412 

1.53 

1.77

Observed

Max 4,230 Mln 65 Mean 533 

Max 4,840 Min 56 Mean 443

401 

1.49 

1.66

49.5 

0.184 

0.21

503 

1.87 

2.15

30.5 

0.113 

0.13

Adjusted

Mean 534 Cfsm 1.99 In. 26.95 

Mean 439 Cfsm 1.63 In. 22.18

Peak discharge (base. 3,000 cfs). AUK. 14 (9 to 10 a.m.) 5,89O cfs (6.66 ft).

* Discharge measurement made on this day.

t Change In contents In Sunapee Lake, equivalent In cubic feet per second.

Note. Stage-discharge relation affected by Ice Dec. 3-9, 21-28, Jan. 1 to Mar. 2, M,ir. 5-9.
CONNECTICUT RIVER BASIN

Black River at North Springfield, Vt.

Location. La t 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. October 1929 to September 1955. 

published in WSP 1301.

October 1929 monthly discharge only,

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. 26 years, 284 cfs.

Extremes . Maximum discharge during year, 5,470 cfs Aug. 13 (gage height, 10.48 ft); minimum, 16 cfs Aug. 11, Sept. 17; minimum daily, 20 cfs Aug. 1, 6.

1929-55: Maximum discharge, 15,500 cfs Sept. 22, 1938 (gage height, 17.68 ft), 

from rating curve extended above 3,200 cfs on basis of computations of flow over dams 

at gage heights 16.41 and 17.68 ft; minimum daily, 10 cfs Oct. 17, 1927.

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

regulated by mills abovj station.

Revisions (water years) . WSP 756: Drainage area. WSP 781: 1931(M), 1934(M).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.8 

2.1 

2.5 

3.0

45

100

205

4.0 

6.0 

8.0

535

1,560

3,040

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

-25

26

27

28

29 

30

31

Total

Mean

Cfsm

In.

Oct.

124 

115

114

130

114

102

92

94

82

87

97

98

93

87

84

247

T93

122

103

96

92

95

102

108

122

114

119

116

124 

199

183

3,648

118

0.747

0.86

Nov.

158 

139

1,230

*1.260

751

523

404

362

314

269

242

158

146

137

144

166

160

185

194

437

1,080

800

563

450

411

376

352

344

492

481

12,728

424

2.68

3.00

Dec.

411 

352

289

239

259

218

253

236

223

233

*211

207

186

T97

814

492

327

631

1.120

678

478

350

280

310

240

220

250

240

428

?KK

11,121

359

2.27

2.62

Jan.

327

282

279

255

240

245

210

190

200

215

*190

190

200

180

180

180

175

170

160

155

140

140

150

150

140

140

140

140

130 

Tso" 125

5,748

185

1.17

1.35

Feb.

115 

125

110 irons

120

160

180

140

130

145

200

180

145

*140

140

140

150

150

140

140

150

180

400

330

240

210

210

-

4,695

168

1.06

1.11

Mar.

350 

600

410

310

280

260

240

2lO

230

240

450

1.150

800

620

600

780

736

531

442

404

*400

344

350

300

287

281

265

235

235 

270

434

13,044

421

2.66

3.07

Apr.

695 

1,010

1,020

746

865

1,130

1,450

1,240

980

1,650

2,520

2,220

1,600

1,730

2.880

2,770

1,940

1,390

1,560

1,520

1,340

1,120

1,130

955

1,030

1,150

1,120

*850

718 

655

40,962

1,365

8.64

9.64

May

575 

525

474

452

404

566

292

215

205

219

207

195

195

181

167

124

114

107

98

102

85

85

94

85

112

170

115

100

124 

265

163

6,583

212

1.34

1.55

June

348 

*231

195

166

151

120

102

99

96

88

83

154

201

157

117

105

88

79

82

142

116

64

74

69

88

105

98

69

67 

58

5,590

120

0.759

0.85

July

50 

45

49

52

47

57

76

61

49

44

56

*47

37

31

37

47

36

31

33

30

35

50

26

26

34

33

32

32

26 

25

22

1,216

39.2

0.248

0.29

Aug.

20 

27

27

24

21

20

24

*22

26

24

132

185

1,110

2.770

1,040

452

316

240

355

218

162

140

158

127

97

90

80

88

76 

79

81

8,231

266

1.68

1.94

Sept.

86 

78

66

68

58

54

56

52

48

44

43

51

57

47

63

25

36

40

122

102

*40

32

41

75

96

65

52

61

68 

65

1,791

59.7

0.378

0.42

Calendar year 1954: Max 2,330 MLn 26 Mean 359 Cfsm 2.27 In. 30.85

Water year 1954-55: Max 2,880 Mln 20 Mean 311 Cfsm 1.97 In. 26.70

Peak discharge i(base, 3.600 cfs). Apr. 11 (9:30 p.m.) 3,740 cfs (8.78 ft); Aug. 13 (11:30 p.m.)

5,470 cfs (10.48 )8 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by ice Dec. 22-28, Jan. 5 to Mar. 16, Mfi
CONNECTICUT RIVER BASIN 177

Williams River at Brockway Mills, Vt.

Location. Lat 43 "12 '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 Palls.

Drainage area. 103 sq mi.

Records available . June 1940 to September 1955.

Gage . Water-stage recorder. Altitude of gage is 430 ft (from topographic map).

Average discharge. 15 years, 168 cfs.

Extreme^. Maximum discharge during year, 2,800 cfs Aug. 13 (gage height, 8.02 ft); minimum7 5.4 cfs Aug. 6.

1940-55: Maximum discharge, 8,910 cfs June 1, 1952 (gage height, 1&.39 ft), from 

rating curve extended above 3,300 cfs on basis of slope-area determination at gage 

height 13.31 ft; 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, which are fair. 

Revisions (water years J.--WSP 1031: 1943-44(P). WSP1301: 1941-42(M).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Apr. 11

1.5 

1.9 

2.5

41

95

224

3.0 362

4.0 700

6.0 1,610

0.8

1.0 

1.2 

1.5 

1.8

Apr. 12 to Sept. 30

5.7 2.2 140

10 3.0 359

19 4.0 700

39 5.0 1,120

72 7.0 2,190

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

55

53

51

60

55

50

48

44

43

44

48

49

44

41

41

178

106

78

68

64

60

55

52

49

46

45

49

66

65

133 

113

1,953

63.0

0.612

0.71

Nov.

87

75

*L.55Q

712

341

246

200

172

154

135

123

119

106

102

97

89

90

104

111

384

928

479

306

259

252

232

214

214

326

320

8,327

278

2.70

3.01

Dee.

270

224

188

142

175

107

160

155

150

*143

127

121

107

104

640

368

236

583

672

371

260

200

170

180

150

135

165

155

250

200 

175

7,083

228

2.21

2.56

Jan.

155

150

140

135

120

135

120

105

110

*115

105

100

105

98

96

96

86

78

72

70

65

65

66

66

64

60

60

60

58

54

5_2

2,861

92.3

0.896

1.03

Feb.

50

48

46

46

46

50

88

78

70

64

100

94

88

82

*80

78

78

80

81

79

78

79

100

240

T90

130

115

127

2,485

38.8

0.862

0.90

Mar.

180

350

240

190

170

150

130

125

125

130

500

640

500

400

356

570

517

329

262

247

236

212

200

*184

177

177

166

150

152

188

5

8,278

267

2.59

2.99

Apr.

594

819

626

471

629

858

972

726

603

1,250

1,590

1,120

880

1,040

1,700

1,390

876

728

760

668

580

504

467

374

632

784

780

*513

412

341

23,692

790

7.67

8.S5

May

294

260

232

210

188

170

154

147

138

126

113

102

97

107

89

80

75

71

64

59

55

50

49

50

65

118

69

59

65

194

112

3,662

118

1.15

1.32

June

186

*111

85

69

67

57

49

48

46

42

38

97

163

92

68

51

43

37

33

30

30

30

33

30

35

54

43

34

30

26

1,757

58.6

0.569

0.63

July

23

22

27

22

19

37

38

25

20

18

16

14

13

13

13

16

31

13

15

12

11

10

9.4

9.2

10

9.4

*8.9

12

12

10

8..J3

522.5

16.9

0.164

0.19

Aug.

7.8

7.4

6.8

6.5

6.1

5.7

6.4

*7.8

7.8

6.8

45

63

835

885

284

129

99

82

106

94

62

46

65

56

42

37

37

36

30

27

31

3.160.1

102

0.990

1.14

Sept.

32

26

24

22

21

19

18

16

16

16

16

16

16

15

14

14

14

13

13

13

12

*11

11

62

59

31

24

31

35

27

657

21.9

0.213

0.24

Calendar year 1954: Max 1,350 Mln 9.3 Mean 198 Cfsm 1.92 In. 26.08

Water year 1954-55: Max 1,700 Mln 5.7 Mean 177 Cfsm 1.72 In. 23.27

Peak discharge (base. 2.600 cfs). Nov. 3 (3 p.m.) 2,740 cfs (7.92 ft); Aug. 13 (7:30 p.m.) 2, 

cfs (8.02 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 7-10, 13, 15, Dec. 21 to Feb. 18, Feb. 23-27, 

Mar. 1-14.
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 1955.

Gage. Water-stage recorder. Altitude of gage is 390 ft (from topographic map).

Average discharge.--15 years, 119 cfs.

Extremes.--Maximum discharge during year, 2,160 cfs Aug. 13 (gage height, 7.58 ft); minimum, 2.2 cfs Aug. 7; minimum daily, 2.4 cfs Aug. 6.

1940-55: Maximum discharge, 5,430 cfs June 1, 1952 (gage height, 11.37 ft), from 

rating curve extended above 1,800 cfs on basis of slope-area determinations at-gage 

heights 1\51 and 11.37 ft; minimum, 1.9 cfs July 25, 1949; minimum daily, that of 

Aug. 6, la.55.

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 ow flow caused by sawmill above station; fluctuation more frequent prior to 1946.

Revisions (water years). WSP 1301: -49(M).

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

Oct. 1 to Aug. 12 Aug. 13 to Sept. 30

2.4

2.8

4.8

7.7

16

40

3.0 

3.5 

4.0 

5.0 

6.0 

7.0

76

160

276

620

1,100

1,750

2.16

2.2

2.4

5.L 

6.4 

16

Note. Same as 

preceding table 

above 2.4 fb.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

43

41

41

41

37

36

35

32

32

32

34

36

33

30

31

115

73

55

48

46

42

39

37

36

34

33

36

41

43

80

72

1,364

44.0

0.609

0.70

Nov.

58

50

995

*474

220

162

132

116

104

93

87

86

77

75

72

67

66

77

83

300

634

342

218

180

174

158

154

158

232

235

5,886

196

2.71

3.03

Dec.

207

170

140

110

120

1OO

115

105

100

105

*98

94

82

96

430

232

156

398

492

255

180

140

120

130

110

94

115

110

180

150

130

5,064

163

2.26

2.61

Jan.

125

110

105

100

96

98

82

76

80

*84

76

76

78

68

68

68

62

54

51

49

46

46

47

47

45

42

42

42

40

38

36

2,077

67.0

0.928

1.07

Feb.

35

33

32

32

32

37

62

54

48

45

69

64

*60

56

54

54

54

56

56

54

54

56

70

170

140

94

80

90

_

------

1,741

62.2

0.861

0.90

Mar.

L30

250

170

L30

120

98

92

88

86

90

330

420

325

250

223

360

296

202

162

156

141

125

120

*115

115

109

101

95

98

133

239

5,369

173

2.40

2.77

Apr.

446

570

405

339

451

604

644

474

393

809

1,050

732

544

639

1.18,0

968

580

452

488

435

376

325

307

253

451

572

498

347

287

240

15,859

529

7.33

8.17

May

*211

187

168

154

141

127

114

113

103

93

86

77

75

73

67

62

56

52

49

44

40

36

36

35

38

55

41

37

40

132

82

2,624

84.6

1.17

1.35

June

130

82

62

*51

51

43

38

36

36

32

27

92

123

72

52

40

34

29

25

20

20

22

35

25

27

28

24

18

16

15

1,305

43.5

0.602

0.67

July

13

12

14

12

10

11

13

10

9.1

8.8

7.7

6.8

6.2

*6.2

5.9

6.5

8.8

6.8

5.9

5.1

4.6

4.2

4.2

4.6

4.4

4.2

4.0

6.5

6.5

5.1

4.2

231.3

7.46

0.103

0.12

Aug.

3.8

3.6

3.0

2.6

2.5

2.4

372

5.6

4.0

3.0

*35

44

615

530

189

90

62

52

59

48

35

27

47

44

30

25

26

31

22

18

20

2,082.7

67.2

0.931

1.07

Sept.

21

15

14

13

12

11

9.2

8.0

8.0

7.6

7.6

8.0

7.6

7.2

6.8

6.8

6.4

6.4

6.4

6.0

6.0

*6.0

*5.1 32 

59

19

13

20

23

17

368.1

12.3

O.L70

0.19

Calendar year 1954: Max 1,020 Min 5.9 Mean 136 Cfsm 1.88 In. 25.52

Water year 1954-55: Max 1,180 Min 2.4 Mean 120 Cfsm 1.66 In. 22.65

Peak discharge (base. 1.750 cfs).--Nov. 3 (2 p.m.) 2,090 cfs (7.48 ft); Aug. 13 (6:30 p.m.) 2,160 

cfs (7.58 ft).

* Discharge measurement made on chis day.

Note.--Stage-discharge relation affected by ice Dec. 3-10, 12-15, Dec. 21 to Mar. 12, Mar. 22-25.
CONNECTICUT RIVER BASIN 179

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. 5,493 sq mi, includes that of Saxtons River.

Records available.--March 1942 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 218.63 ft above mean sea level, datum of

Average discharge.--13 years, 9,596 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 64,400 cfs Apr. 16 (gage height, 23.50 ft); minimum daily, 152 cfs Sept. 10.

1942-55: Maximum discharge, 97,000 cfs Mar. 27, 1953 (gage height, 30.37 ft): minimum daily, 115 cfs Aug. 31, 1952.

Maximum stage known, 43.8 ft Mar. 19, 1936, from floodmarks.

Remarks.--Records excellent except those for periods of ice effect or no gage-height record, which are good. Flow regulated by powerplants and by First Connecticut and Second 

Connecticut Lakes, Lake Francis, Comerford Station Pond (see p. 232), and other reservoirs (combined usable capacity, about 14? billion cubic feet).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

3.8 

4.0 

4.5 

5.0 

5.5 

6.0

115

202

488

930

1,510

2,270

7.0

10.0

15.0

20.0

24.0

4,230

11,700

28,500

48,700

66,700

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

7,860

7,820

5,180

7,260

15,800

*17,500 

15, 600

13,600

11, 400

9,590

6,780

8,600

9,720

8,510

11,100

9,580

7,820

7,900

8,490 

8,520

7,820

7,410

5,410

3,540

5,360

5,780

5,430

7,590

8,690 

9,010

4,260

268,730

8,669

-35.8

Nov.

7,180

8,350

10, 400

19,800

16,700

13,200 

12,400

7,890

7,790

8,230

8,620

7,680

6,510

2,470

7,330

7,010

7,340

6,720

6,790 

6,950

17 , 800

26,700

24,600

20,600

17,000

12 , 100

12 , 500

9,650

10,500 

15,400

346,210

11,540

+61.8

Dec.

15,500

13,200

12 , 000

9,120

3,520

7,280 

6,790

6,230

7,300

10,500

9,920

6,540

5,860

*8,040

12 , 100

11,900

12,000

11,700

20, 600

15,100

12,600

11,600

9,370

8,890

6,570

6,600

10,000

11,700

14,300 

13,900

327,230

10,560

-855

Jan.

12,600

11,400

8,700

10, 500

10,300

9,150 

9,200

8,040

4,100

7,010

7,100

7,790

*7,400

7,260

6,600

4,650

5,910

6,100

6,240 

6,400

6,300

4,900

2,400

4,900

5,300

4,600

4,200

4,100

3,000 

2 500

3^600

202,250

6,524

-1,145

Feb.

3,600

4,300

2,900

3,500

2,600

1,650 

5,500

3,700

3,900

4,500

4,500

*4, 600

3,600

4,700

4,800

5,400

5,600

5,600

5,000 

2,500

5,300

4,300

4,770

8,920

11,000

10,500

3,400

8,900

-

144,540

5,162

-600

Mar.

9,400

18,500

14,000

12,000

9,960

7,210 

7,360

7,290

6,480

6,430

9,780

22,400

23,000

19,600

18,100

20,200

21,400

18,200

16,100 

12,800

11,900

11,900

11,600

*9,980

10,300

8,650

7,240

7,000

7,390

7 520 lo'ioo

383,790

12,380

-408

Apr.

14,800

2"0,200

22,900

19,400

22,500

27,300 

37,200

38,400

32,200

30, 800

42,800

47,200

41,900

39,300

50,400

63,900

61,80O

56,900

52,600 

52,400

49,400

42,900

36,300

32,200

30,700

34,900

33,400

30,500

27,300

24,300

* 1,1 16.8

37,230

+1,972

May

*22,000

19,606

17,700

17,800

18,300

18,400 

18,500

17,100

16,500

17,900

17,800

15,200

12,300

12,100

9,620

8,680

8,070

7,000

7,560 

7,110

5,820

2,520

6,680

5,500

5,390

a7,000

a9,200

a8,900

a3,400

38,100 

a8, 700

360,450

11,630

+832

June

al2,500

a24,000

20,600

14,200

11,900

9,370 

8,560

*7,340

6,510

5,510

2,080

2,570

10, 600

10, 400

11,700

12,600

11,900

11,600

3,170 

5,400

3,720

5.760

8,250

6,550

7,360

6,090

6,130

6,450

5,550

4,680

263,050

8,768

+385

July

4,140

4,050

1,080

2,700

3,800

3,540 

3,710

3,700

861

*612

3,140

2,860

2,230

2,740

2,300

352

165

2,830

2,480 

2,390

3,040

2,480

184

184

1,950

1,800

1,810

3,070

2,410

184

170

66,962

2,160

-200

Aug.

2,440

1,870

1,210

901

1,040

161 

25T

1,690

2,130

2,580

5,370

*7,340

8,200

27,300

15,900

12,400

11,500

12,100

12,700 

11,800

2,880

4,280

5,400

5,800

7,150

5,710

4,080

2,410

4,620

4,850

5,060

192,129

6,198

+25.7

Sept.

4,120

4,380

2,620

234

165

3,870 

4,280

2,770

2,410

152

179

2,970

2,340

1,920

2,510

2,700

524

466

4,870 

3,880

1,530

*1,820

1,840

1,470

602

2,480

2,070

3,230

2,660

3,070

68, 132

2,271

-652

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

8,633

1.57 

1.81

11,600 

2.11 

2.36

Calendar year 1954 : 

Water year 1954-55 :

9,701 

1.77 

2.04

5,379 

0.979 

1.13

4,562 

0.831 

0.86

11,970

2.18 

2.51

39,200

7.14 

7.96

12,460 

2.27 

2.62

Observed

Max 56,100 Mln 535 Mean 12,690 

Max 63,900 Min 152 Mean 10,250

9,153 

1.67 

1.86

1,960 

0.357

0.41

6,223

1.13 

1.31

1,619 

0.295 

0.33

Adjusted

Mean 12,720 Cfsm 2.32 In. 31.46 

Mean 10, 190 Cfsm 1.81 !" 25.20

Peak discharge (base, 44,000 efs).--Apr. 16 (10 a.m. to 12 m.) 64,400 cfs (23.50 ft).

* Discharge measurement made on this day.

t Change in contents In First Connecticut and Second Connecticut Lakes, Lake Francis, Comerford 

Station Pond, Moore Reservoir, Union Village Reservoir, 4 reservoirs in Mascoma River basin, and 

Sunapee Lake, equivalent in cubic feet per second.

* Expressed In thousands.

a No gage-height record; discharge estimated on basis of recorded range In stage, pcwerplant records, and records for Saxtons River at Saxtons River, Vt.

Note.--Stage-discharge relation affected by ice Jan. 7, 1'5, 18, Jan. 20 to Feb. 22, Feb. 25 to
180 CONNECTICUT RIVER BASIN

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 1955.

Gage. Water-stage recorder. Altitude of gage is 375 ft (from topographic map).

Average discharge.--15 years, 117 cfs.

Extremes.--Maximum discharge during year, 1,240 cfs May 31 (gage height, 6.03 ft); minimum, 

5.7 cfs Aug. 6.

1940-55: Maximum discharge, 8,160 cfs Nov. 26, 1950 (gage height, 10.29 ft), from 

rating curve extended above 3,400 cfs by logarithmic plotting; minimum, 1.3 cfs Sept. 23, 

1940.

Remarks.--Records excellent except those for periods of ice effect, which are fair. Occasional diurnal fluctuation at low flow caused by sawmill above station; fluctuation more 

frequent prior to 1945.

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

3.5 

4.0 

4.5 

5.0 

5.5

155

248

395

605

870

3.0 91

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

_5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

42

41

39

40

38

35

34

32

31

33

37

40

37

33

30

82

77

56

47

43

41

38

35

34

32

31

32

33

36

68 

75

1,302

42.0

0.508

0.59

Nov.

60

52

394

*539

348

184

136

114

100

88

84

83

74

70

66

59

58

61

65

311

511

436

270

206

182

160

143

152

250

255

5,411

180

2.18

2.43

Dec.

218

174

124

98

106

65

71

69

*77

91

86

72

sa

63

236

204

138

417

683

36?

238

180

136

155

112

89

106

112

179

160

140

5,031

162

1.96

2.26

Jan.

110

112

ISO" 115

78

88

76

56

*49

60

49

47

45

38

36

37

37

33

31

31

24

23

24

25

25

23

22

20

18

16

15

1,463

47.2

0.571

0.66

Feb.

14

13

12

11

JLO

11

100

50

35

37

150

 115

80

52

50

49

44

44

43

43

42

43

90

152 TT3"

92

80

99

-

------

1,674

59.8

0.723

0.75

Mar.

360

390

212

125

105

92

80

6868"

91

447

543

367

258

229

402

342

202

148

 131

120

107

100

*92

92

90

83

69

76

122

250

5,861

189

2.29

2.64

Apr.

442

584

434

373

498

553

546

399

318

518

644

KIT

384

364

564

560

388

298

290

290

258

244

233

210

30T

455

378

318

277

240

11,881

396

4.79

5.34

May

*212

186

160

146

134

120

109

106

106

92

82

76

71

80

73

63

53

49

45

41

39

36

34

34

61

150

78

56

112

531 455"

3,590

116

1.40

1.61

June

725

357

238

*179

155

107

86

79

74

61

53

180

381

235

172

120

86

61

51

46

56

76

106

72

62

81

72

51

42

36

4,110

137

1.66

1.85

July

32

28

28

25

22

28

34

27

21

20

18

15

13

 13

12

12

15

13

12

11

9.8

9.3

8.8

9.0

9.0

8.6

8.2

8.8

9.0

8.0

lii

494.6

16.0

0.133

0.22

Aug.

6.7

6.5

6.2

6.1

5.9

5.7

C5

8.0

7.1

*6.5

29

52

152

748 292"

126

87

69

57

44

34

26

31

29

24

20

27

30

21

18

17

1,998.2

64.5

0.780

0.90

Sept.

19

17

16

15

13

14

20

16

15

13

15

18

16

14

13

13

12

11

11

11

 11

9.8

20~ 9.3

29_

19

16

21

25

20

472.1

15.7

0.190

0.21

Calendar year 1954: Max 1,590 Mln 5.6 Mean 141 Cfsm 1.70 In. £3. 13

Water year 1954-55: Max 748 Mln 5.7 Mean 119 Cfsm 1.44 In. 19.46

Peak discharge (base, 1,000 efa). Dee. 18 (11:30 p.m.) 1,020 cfs (5.71 ft); May 31 (10 to 11 p.m.) 

1,240 cfs (6.03 ft).

* Discharge measurement made on this day.

Mote. Stage-discharge relation affected by Ice Dec. 13, 26, 27, Dec. 30 to Feb. 15, Mar. 1, 4, 6, 

7,~9, 22, 23, 26-28.
CONNECTICUT RIVER BASIN 

West River at Jamaica, Vt.

181

Location.--Lat 43°06'30", long 72°46'30", on left bank a quarter of a mile upstream from' 

highway bridge at Jamaica, Wlndham County, and 0.4 mile upstream from Ball Mountain 

Brook.

Drainage area. 179 sq mi.

Records available. October 1946 to September 1955.

Gage. Water-stage recorder. Altitude of gage Is 640 ft (from topographic map).

Average discharge. 9 years, 372 cfs.

Extremes.--Maximum discharge during year, 9,460 cfs Nov. 3 (gage height, 10.62 ft); minimum, 

7.3 cfs Aug. 7.

1946-55: Maximum discharge, 29,500 cfs Dec. 31, 1948 (gage height, 14.87 ft), from 

rating curve extended above 9,800 cfs by logarithmic plotting, verified by slope-area 

determination of peak flow; minimum, 5.0 cfs Aug. 28, 1949.

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

fluctuation caused by mill above station.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

3.59

3.6

3.8

4.0

4.3

4.6

5.0

122

244

5.5 

6.0 

7.0 

8.0 

9.0 

10.0

460

750

1,680

3,060

5,010

7,600

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

114

132

127

137

122

103

96

91

89

91

98

109 

101

91

87_

573

350

219

179

170

147

134

122

114

105

99

107

176

160

348 

330

4,921

159

0.888

1.02

Nov.

230

189

5,050

2,800

*1,190

736

545

456

388

325

287

279

237

222

212

189

189

233

287

875

2,580

1,430

792

590

510

446

406

406

505

550

23,134

771

4.31

4.81

Dec.

465

379

295

275

300

260

250

240

230

240

220

*190 

185

180

1,150

800

460

801

1,600

771

465

410

325

350

260

210

250

260

1,050

844 

566

14,281

461

2.58

2.97

Jan.

575- 415

350

305

260

270

230

200

175

180

160

*140 

145

140

130

130

125

115

110

105

100

100

102

102

95

90

85

85

82

80 

76

5,057

163

0.911

1.05

Feb.

72

70

6868"

70

85

130

200

160

150

140

210 

230

210

190

*175

160

150

145

140

140

145

240

560

620

400

340

310

-

5,578

199

1.11

1.16

Mar.

600

1,300

828

572

430

366

325

275

260

271

620

1,450 

1,090

736

632

908

1,110

668

530

433

433

380

360

334

304

290

265

235

245

250 

400

16,900

545

3.04

3.51

Apr-.

750

1,360

1,360

806

844

1,370

2,020

1,440

1,030

2,370

3,500

2,700 

1,880

2,120

4.110

4,110

2,460

1,870

2,320

2,240

1,820

1,520

1,590

1,200

1,500

1,530

1,450

1,020

*844

743

53,877

1,796

10.0

11.19

May

644

540

465

410

366

321

267

256

248

215

189

164 

150

156

134

120

107

99

91

82

76

70

65

66

229

531

211

140

133

330" 660 

7,535

243

1.36

1.57

June

379

296

205

145

115

100

94

*91

84

75

65

109 

407 2"86'

170

112

96

78

62

55

49

55

137

125

137

194

147

120

76

60

4, 119

137

0.765

0.86

July

49

45

74

5T

44

41

59

49

38

32

29

25 

24

23

21

23

49

41

31

27

23

*21

20

18

16

15

15

18

20

17 

16

980

31.6

0.177

0.20

Aug.

14

13

10

9.6

8.8

~57Z 8.4

11 '

9.6

*8.8

247

355 

2,580

5,570

1,040

428

287

198

271

208

127

94

112

109

80

66

80

94

68

54 

70

IO.059 . 6

524

1.81

2.09

Sept.

94

65

51

44

59

55

52

29

26

26

25

25 

25

25

25

23

23

21

20

19

18

16

*16

119

186

80

55

97

124

76

1,453

48.4

0.270

0.50

Calendar year 1954: Max 5,050 Min 11 Mean 444 Cfsm 2.48 In. 33.68

Water ater year year 1954-55: 1954-55: Max Max 5,050 5,050____Hln Mln 8.4 8.4 Mean Mean 405 405_____Cfsm Cfsm 2.26 2.26 In. In. 30.73 50.73_________

Peak discharge (base, 4,500 cfs).--Nov. 3 (4:50 p.m.) 9,460 cfs (10.62 ft); Apr. 11 (9 p.m.) 4,970 

fs (8.98 ft); Apr. 15 (11 p.m.; 5,870 cfs (9.36 ft); Aug. 13 (7:30 p.m.) 6,950 cfs (9.77 ft). 

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 5-15, 21-29, Jan. 2 to Mar. 2, Mar. 5, 8, 9, 

11"T~I2", 22, 23, 26-31.
182 CONNECTICUT RIVER BASIN

West River at Newfane, Vt.

Location. --Lat 42°59'45", 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 1955.

Gage. Water-stage recorder. Datum of gage is 384.21 ft above mean sea level, datum of 

T929. Prior to June 27, 1931, chain gage at site 600 ft upstream at same datum.

Average discharge. --31 years, 618 cfs.

Extremes. Maximum discharge during year, 18,300 cfs Nov. 3 (gage height, 12.52 ft); minimum, 16 cfs Aug. 6.

1919-23, 1928-55: 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 determine tion at gage height 19.3 ft and slope-area determinations at gage 

heights 19.40 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). WSP 756: Drainage area. WSP 1231: 1920-21(M), 1922-23, 1929-

Rating table, water year 1954-55, except periods of ice effect 

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

3.78

3.9

4.0

4.1 

4.4 

4.7

170

314

5.0 

5.5 

6.0 

7.0 

8.0 

10.0

495

875

1,370

2,710

4,550

9,980

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

196

219

228

224

219

192

174

166

158

162

166

183

183

162

154

879 65"5

418

336

293

283

248

228

214

196

188

188

283

272

555 

551

8,576

277

0.899

1.04

Nov.

424

342

9,850"

5,290

*2,140

1,360

1,000

824

702

593

523

502

443

406

394

353 

348

394

495

1,430

4,800

2,620

1,460

1,100

974

832

774

742

956

1,030

43,101

1,437

4.67

5.20

Dec.

884

734

586

450

544

415

430

425

436

456

430

*4OO

364

357

2,200

1,520 

893

1,380

2^960

1,480

947

700

560

620

500

380

460

500

1,750

1,500

984

26,245

847

2.75

3.17

Jan.

"655" 726

635

55O

430

495

436

382

342

376

325

*270

290

270

245

255 

240

225

210

200

190

190

195

195

185

175

165

165

160

155

150

9,492

306

0.994

1.15

Feb.

140

135

130

130

130

140

230

320

290

250

235

34O

37O

330

310

295 

*280

275

260

255

250

250

450

800

1,000

800

620

560

9,575

342

1.11

1.16

Mar.

800

2,200

1,690

1,000

79O

658

558

435

420

435

920

2,400

2,026

,44O

,220

,660 

,950

,190

929

758

766

695

*628

572

544

530

495

400 4ZB456

718

29,702

958

3.11

3.59

Apr.

1,350

2,410

2,520

1,520

1,610

2,360

3,510

2,580

1,820

3,820

6,230

4,960

3,270

3,440

7,110

7.460 

4,410

2,950

3,660

3,500

2,930

2,290

2,420

1,890

2,450

2,730

2,530

1,770

*1,460

lj_270

92,250

3,075

9.98

11.14

May

1,110

947

816

710

635

565

488

456

443

394

348

314

288

304

272

238 

214

196

179

162

146

134

123

119

123

758

359

248

196

791

509

12,585

406

1.32

1.52

June

516

4575

*336

252

219

205

179

158

150

130

112

181

499

466

288

205 

162

142

112

94

84

81

174

170

220

222

246

183

134

98

6,468

216

0.701

0^78

July

78

72

SI

94

75

58

f2

72

F8

48

44

39

36

35

34

34 

42

56

44

38

35

32

30

31

30

*28

26

31

34

31

28

1,439

46.4

0.151

0.17

Aug.

25

24

21

19

18

1719"

20

20

*18

90

583

3,980

5,920

1,850

758 

469

331

394

348

238

174

205

224

158

126

119

179

134

101

94

16,676

538

1.75

2.01

Sept.

150

112

84

72

62

56

52

46

44

42

40

40

39

38

36

36 

36

36

35

34

34

31

*30

68

556

158

98

100

219

138

2,302

76.7

0.249

0.28

Calendar year 1954: Max 9,850 Min 27 Mean 767 Cfsm 2.49 In. 33.79

Water year 1954-55: Max 9,850 Min 17 Mean 708 Cfsm 2.30 In. 31.21

Peak discharge (base, 8,800 efs) . Nov. 3 (4 p.m.) 18,300 cfs (12.52 ft); Apr. 11 (10 p.m.) 8,800 

cfs (9.63 ft); Apr. 16 (1 to 2 a.m.) 10,300 cfs (lO.OS ft); Aug. 13 (8:30 to 9 p.m.) 11,900 cfs 

(10.56 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 6-8, 12, 15, 22-29, Jan. 4, 5, Jan. 12 to 

Mar. 2, Mar. 5, 8-12, 29.
CONNECTICUT RIVER BASJN 

Connecticut River at Vernon, Vt.

183

Location.--Lat 42°46'10", long 72 "30'50", on right bank just downstream from Vsrnon Dam 

at Vernon, Windham County, 2 miles upstream from Ashuelot River.

Drainage area.--6,266 sq mi.

Records available.--February to April 1936 (in WSP 798), September and October 1938 (in 

WSP 867), October 1944 to September 1955.

Gage.--Water-stage recorder. Datum of gage is at mean sea level, datum of 1923. Prior 

To Jan. 20, 1948, at datum 94.13 ft higher.

Average discharge.--11 years (1944-55), 11,050 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 70,500 cfs Apr. 16 (gage height, 200.88 ft); 

minimum daily, 275 cfs July 17, 31.

1936, 1938, 1944-55: Maximum discharge, 176,000 cfs Mar. 19, 20, 1936 (gage height, 

128.8 ft, datum then in use), from rating curve extended above 69,000 cfs; minimum 

daily, 99 cfs Oct. 8, 1944.

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 Fraicis, 

Comerford Station Pond (see p. 232), and other reservoirs (combined usable capacity, 

about 15 billion cubic feet).

Revisions.--WSP 1031: Drainage area.

Discharge, in cubic feet per second, water year October 1954 to September 19j5

Day

1 

2

3

4

5

6

7

8

9

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.

9,040 

7,870

4,070

8,140

14,800

16,500

14,300

12 , 600

12,600

9,520

8,580

8,650

8,650

8,890

13,000

11,800

10,000

8,650

8,030

7,950

8,160

7,190

5,300

1,970

5,970

6,270

6,260

6,890

9,070 

11,000

4,840

276,560

8,921

-35.8

Nov.

7,230 

9,100

20,600

28,000

20, 100

*15,500

14,200

10,500

9,370

10,300

9,030

8,040

9,200

2,280

7,530

9,100

8,740

7,410

7,460

9,690

22,400

29,900

56,600

22,700

18,900

14,000

14,400

13,200

13,000 

14,600

413,080

13,770

+61.8

Dec.

17,900 

15,300

14,100

13,500

4,100

7,410

8,670

7,170

8,700

12 , 100

12 , 000

7,810

*6,840

8,850

14,400

14,900

14,000

15 , 200

24,700

18 , 600

17,100

14,000

13,500

12 , 400

10,200

8,500

7,390

11,900

13 , 300 

15,100

14,400

384,040

12,390

-855

Jan.

14,200

11^200

11,800

11,300

11,500

11,000

9,620

3,590

6,700

8,690

8,280

*7,710

7,200

7,200

5,800

6,500

7,400

6,700

7,000

6,500

5,600

2,500

6,100

6,200

5,300

6,000

4,500

1,600 

2,200

5,200

228,690

7,377

-1,145

Feb.

4,400 

4,500

4,200

3,500

2,050

2,100

9,000

4,500

4,200

5,000

6,200

5,400

4,800

6,000

6,700

5,600

*6,600

6,000

5,400

2,300

6,000

7,000

5,400

8,400

11,500

11,700

10,266

10, 600

-

 

169,250

6,045

-600

Mar.

11,800 

21,500

17 , 500

15,000

13,100

9,930

8,800

8,190

7,890

7,250

11,900

23,500

25,700

21 700

19^700

21,900

24,200

20,900

17,600

14,500

13,400

*13,200

13 , 000

12 , 000

11,600

9,830

8,770

8,380

9,390 

7,740

9,300

439,170

14,170

-408

Apr.

16,400 

23,606

28,200

21,800

24,700

30,300

37 , 600

44,300

37,900

34,800

48,200

55 , 300

50,800

45, 500

51,500

69,100

70,000

67 , 600

65,200

63,400

61,700

56,700

44,200

37 , 800

34,800

40, 200

40, 800

37,000

32,900 

28, 7OO

*1,301

43,370

+1,972

May

25,600 

22,000

20, 300

18,000

19,600

19,200

19 , 100

19,000

17,600

17,700

18,600

17,200

14,200

8,580

11,500

7,960

8,190

8,040

8,680

7,400

5,210

3,060

7,230

6,650

7,210

7,550

*10, 600

10, 100

2,760 

7,916

10, 100

386,830

12,480

+832

June

12,700 

22 . 500

21,900

15,600

12 , 500

11,600

10,300

7,700

6,480

4,400

1,110

2,170

10,200

12,600

12 , 400

12 , 400

12 , 500

12,300

3,350

5,940

5,330

6,580

7,520

8,000

7,830

4,140

7,550

6,640

6,310 

4,820

275,370

9,179

+385

July

5,450 

3,600

1,110

2,400

4,280

4,190

4,140

3,590

981

478

3,480

3,010

2,500

3,400

2,880

290

275

3,155"

2,920

2,590

3,050

2,640

280

*280

2.570

2,090

1,890

3,580

3,020 

300

275

74,669

2,409

-200

Aug.

1,880 

2,150

1,390

1,280

1,080

310

B3?

1,520

2,140

2,870

*1,800

8,660

12,900

50.200

2T7700

14, 300

13,000

12,300

14,500

14, 100

5,300

5,460

5,780

6,860

8,080

6,180

2,860

1,890

4,790 

5,570

5,630

219,612

7,084

+25.7

Sept.

5.420 

5,160

2,300

285

280

5,190

5,000

3,420

2,960

285

280

3,350

2,740

2,270

2,020

2,150

285

280

4,200

3,750

2,020

1,880

1,860

*2,140

802

2,780

2,570

3,400

3,080 

3,710

75,827

2,528

-652

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

8,886 

1.42 

1.63

13,850 

2.21 

2.46

Calendar year 1954: 

Water year 1954-55:

11,550 

1.84 

2.12

6,252 

0.995 

1.15

5,445 

0.869 

0.90

15,760 

2.20 

2.55

45,340 

7.24 

8.07

13,510 

2.12 

2.45

Observed

Max 63,400 Min 821 Mean 14,130 

Max 70,000 Min 275 Mean 11,650

9,564 

1.55 

1.70

2,209 

0.353 

0.41

7,110 

1.13 

1.51

1,876 

0.299 

0.53

Adjusted

Mean 14,160 Cfsm 2.26 In. 30.68 

Mean 11,580 Cfsm 1.85 In. 25.06

Peak discharge (base, 50,000 cfs). Apr. 16 (2 to 4 p.m.) 70,500 cfs (200.88 ft).

* Discharge measurement made on this day.

t Change in contents in First Connecticut and Second Connecticut Lakes, Lake Francis, Comerford 

Station Pond, Moore Reservoir, Union Village Reservoir, 4 reservoirs in Mascoma River basin, and 

Sunapee Lake, equivalent in cubic feet per second.

* Expressed in thousands.

Note. Stage-discharge relation affected by ice Dec. 22, 23, Jan. 14 to Mar. 1.
CONNECTICUT RIVER BASIN 

Ashuelot River near Gllsum, N. H.

Location. Lat 43°02'20", long 72°16'15", on right bank 50 ft downstream from White Brook, 

60 ft upstream from stone-arch bridge just off Keene-Newport road, and 0.7 mile downstream from Gllsum, Cheshire County.

Drainage area.- -71.1 sq ml.

Records available .--August 1922 to September 1955.

Gage. Water-stage recorder. Concrete control since Oct. 13, 1942. Datum of gage is 

T73.86 ft above mean sea level (levels by Corps of Engineers).

Average discharge . 33 years, 126 cf s .

Extremes . --Maximum discharge during year, 1,210 cfs Nov. 4 (gage height, 6.35 ft); maximum 

gage height , 6.47 ft Mar. 2 (Ice jam); minimum discharge, 5.3 cfs Aug. 5, 6.

1922-55: 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; minimum discharge, about 1 cfs Oct. 6, 1922, July 10, 1923, Nov. 14, 1952.

Remarks . Records good except those for periods of ice effect, which are fair. Flow regulated by reservoir above station. Diurnal fluctuation caused by powerplant above 

station prior to 1938.

Revisions (water years) .--WSP 661: Drainage area. 

1928, 1329-30(M), 1931, 1932 IM), 1941 (M).

WSP 781: 1934 (M). WSP 1231: 1923~27(M),

Rating table, water year 1954-55, except periods of Ice effect (gige 

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

1.41

1.5

1.7

2.0

2.5

5.2

7.0

17

38

86

3.0 

3.5 

4.0 

5.0 

6.0

156

251

380

715

1,060

Discharge, In cubic feet per second, water year October 1954 to Septeirber 1955

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

*41

38

36

35 

32

32

32

28

25

30

32

34

32

30

29

86

99

76

70

68

59

52

47

43

40

37

36

36

41

70

80

1,429

46.1

0.648

0.75

Nov.

75

70

495

 1,030 6"56"

*431

294

206

164

131

112

102

90

83

78

72

69

7T

78

221

437

458

392

312

238

195

170

170

220

251

7,384

246

3.46

3.86

Dec.

212

171

131

110 

106

90

86

82

76

82

78

72

67

68

200

270

226

262

698

505

352

249

193

166

130

105

100

100

150

186

180

5,503

178

2.50

2.88

Jan.

155

140

145

125 

100

96

90

*85

76

70

64

56

50

45

41

35

35

36

35

33

28

27

25

24

24

23

22

20

19

17

!5_

1,756

56.6

0.796

0.92

Feb.

14

13

12

12 

12

13

100

90

65

48

85

2OO

T7T5

120

80

54

47

47

46

40

38

38

50

140

150

115

100

110

2,009

71.8

1.01

1.05

Mar.

260

400

280

190 

145

120

105

95

90

86

200

440 372"

289

260

349

369

272

208

164

148

130

125

107

*96

96

91

82

86

91

161

5,907

191

2.69

3.09

Apr.

286

404

416

333

386

43]

458

410

349

383

522

575

498

416

480

648 Birr

416

358

338

302

276

258

238

27T

416

*458

410

369

315

11,984

399

5.61

6.27

May

258 516"

182

159 

142

126

112

108

104

92

83

75

70

70

66

60

56

52

47

42

39

36

35

34

35

47

42

40

40

77

143

2,688

86.7

1.22

1.41

June

*186

274

214

151 

118

91

71

61

54

47

40

S3

224

210

158

117

85

65

53

45

54

82

74

82

75

88

97

79

62

51

3,096

103

1.45

1.62

July

42

39

39

32 

28

22

25

25

22

21

18

16

14

13

13

12

13

10

*9.5

9.5

8.1

7.7

7.4

7.7

7.7

7.4

6.4

7.0

7.4

7.0

6.7

5C3.5

16.2

0.228

C.26

Aug.

6.2

6.2

6.2

5.8 

5.5

5.6

9.0

7.4

6.7

6.0

11

*15

55

557

729

398

231

134

145

131

84

61

64

60

49

39

40

42

31

27

26

2,993.6

96.6

1.36

1.57

Sept.

26

23

21

18 

16

14

13

12

10

10

10

11

10

9.0

8.5

8.5

8.1

7.7

*7.4

7.7

7.7

7.0

IS"6.4

19

15

10

18

21

16

384.0

12.8

0.180

0.20

Calendar year 1954: Max 1,330 Mln 7.6 Mean 149 Cfsm 2.10 In. 28.39

Water year 1954-55= Max i,o30 Mln 5.5 Mean 125 Cfsm 1.76 In. 23.88

Peak discharge (base, 1,000 cfs).--Nov. 4 (1:30 to 2 a.m.) 1,210 cfs (6.35 ft). 

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 6-9, 15, 16, 25-29, Jan. 1, 2, Jan. 5 tc 

Mar. 12.
CONNECTICUT RIVER BASIN 185

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, 2^ miles upstream from Sturtevant Brook, and 4^ miles north of Keene, 

Cheshire County.

Drainage area. 101 sq ml.

Records available. September 1945 to September 1955.

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. 10 years, 174 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 840 cfs Apr. 15 (gage height, 8.23 ft); minimum daily, 1.0 cfs Aug. 20, 21.

1945-55: 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. Plow regulated by Surry Mountain Reservoir (see p. 232).

Rating table, water year 1954-55 (gage height. In feet, 

and discharge, in cubic feet per second)

1.0

1.6

2.6

5.4

9.5

20

36

5.5 

6.0 

6.5 

7.0 

8.0 

9.0

82

154

257

402

760

1,110

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

Z

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

*61 

56

54

51

48

47

46

42

40

42

47 

48

45

42

5j»

100

-98 125

86

83

72

65

59

56

51

48

48

48

51

94

109

1,901

61.3

+0.07

Nov.

102 

*94

130

355

704

*694

668

587

320

173

154 

144

125

108

103

90

83

85

91

184

448

575

594

563

434

318

230

207

242

318

8,923

297

+12.7

Dec.

329

268

187

146

141

124

*103

81

71

44

77^

234

168

176

281

326

309

461

585

571

567

399

247

223

168

143

146

182

242

279

7,278.4

235

0

Jan.

204

171

187

193

187

146

133

111

94

90

90 

*67

58

58

57

57

57

57

57

42

36

36

36

36

36

36

36

36

36

30

24

2,494

80.5

-0.90

Feb.

24 

24

23

22

16

IS.

66

69

56

69

92 

148

176

152

104

85

*85

85

81

72

72

65

67

96

143

157

157

193

2,411

86.1

+3.22

Mar.

214 

400

492

314

197

182

129

121

121

121

169 

446

598

594

510

458

583

437

273

197

289

232

175

156

*144

140

136

ii8-

T2T

138

218

8,423

272

-9.26

Apr.

365 

533

621

583

575

617

628

632

583

529

609

654

781

784

854

389

105

368

686

795

788

746

458

509

555

507

567

571

548

*441

16,937

565

-5.67

May

535 

*279

257

211

191

175

157

152

144

150

118 

107

100

98

92

85

77

70

64

58

53

49

46

le- 45

es

*56

51

49

110

168

3,618

117

+0.78

June

386 

574

284

195

161

125

102

88

78

67

58 

125

298

287

205

156

121

95

76

64

77

128

111

112

108

118

122

104

82

66

4,569

146

-2.55

July

55 

52

60

44

36

56

31

52

28

26

25 

20

18

17

15

16

16

14

12

12

10

9.5

9.1

9.8

9.5

8.6

*8.2

8.6

8.8

8.0

7.5

660.2

21.3

-0.19

Aug.

6.9 

6.5

6.4

5.8

5.4

4.9

9.6

9.1

*7.7

6.9

10 

21

40

107

469

668

65T

513

1.2

1.0

1.0

579

286

85

64

51

49

55

42

54

54

5,455.4

111

+0.04

Sept.

1

25

22

20

18

16

15

13

13

13 

13

15

12

11

11

11

10

10

10

11

10

9.5

*18

27

21

16

25

28

24

507.5

16.9

-0.04

Adjusted for change In contents In Surry Mountain Reservoir

Mean 

Cf am 

In.

61.4 

0.608 

0.70

51C 

5.07 

3.42

Calendar year 1954; 

Water year 1954-55:

 255 

2.33

2.68

79.5 

0.787 

0.91

89.5 

0.884 

0.92

262 

2.59 

3.00

561 

5.55 

6.20

117 

1.16 

1.54

Observed

Max 728 Mln 2.4 Mean 202 

Max 834 Mln 1.0 Mean 167

145

1.42 

1.58

21.1 

0.209 

0.24

111 

1.10 

1.27

16.9 

0.167 

0.19

Adjusted

Mean 202 Cfsm 2.00 In. 27.17 

Mean 167 Cfsm 1.65 In. 22.46

* Discharge measurement made on this day.

t Change In contents In Surry Mountain Reservoir, equivalent In cubic feet per second.
186 CONNECTICUT RIVER BASIN 

Otter Brook near Keene, N. H.

Location.--Lat 42°57'55", long 72°14'00", on left bank 10 ft downstream from bridge near 

State Highway 9, 3^ miles northeast of Keene, Cheshire County, and 3j miles upstream 

from Minnewawa Brook.

Drainage area.--42.3 sq mi.

Records available.--October 1923 to September 1955.

Gage.--Water-stage recorder. Concrete control since Nov. 17, 1936. Datum of gage is 

716.11 ft above mean sea level (levels by Corps of Engineers).

Average discharge. 32 years, 71.2 cfs.

Extremes. Maximum discharge during year, 780 cfs Nov. 3 (gage height, 4.99 ft); maximum 

gage height, 6.27 ft Mar. 1 (backwater from ice); minimum discharge, 1.2 cfs Aug. 6.

1923-55: 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 slopearea and contracted-opening determinations at gage heights 7.10 and 7.93 ft; minimum, 

1.1 cfs Oct. 4, 5, 1953.

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

Revisions (water years).--WSP 871: Drainage area. WSP 1231: 1924(M), 1928, 1930(M), 

1933-34(M), 1941-42(M), 1947(M).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

2.3

2.6 

2.8 

3.0 

3.2

Oct. 1 to Mar. 1

6.0 3.5

14 3.8

22 4.2

37 4.5

Mar. 2 to Sept. 30

113

203

380

530

1.95

2.0

2.1

1.2 

1.6 

2.4

2.3 

2.5 

2.8

5.3

10

22

Note. Same as preceding 

table above 2.8 ft.

Discharge, In cubic feet per second, water year October 1954 to September 1955 i i i i i i i i i i 

Day

1

2

3

4

5

6

7

8

9

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.

*52

52

50

49

46

42

42

39

36

20

25

25

22

21

20

11

57

46

37

32

29

26

25

24 

26

23

22

22

*28 

47

48

1,104

35.6

0.842

0.97

Nov.

41

37

395

483

222

145

113

98

85

75

68

65

59

56

54

50

48

53

52

148

226

211

154

123 

109

100

96

102

145 

148

3,762

125

2.96

3.31

Dec.

126

105

89

75

72

69

62

50

*52

56

54

50

18

49

145

160

125

210

430

266

189

155

130

105 

87

77

72

72

98 

107

98

3,483

112

2.65

3.06

Jan.

85

87

94

85

74

68

60

*50

47

45

41

37

34

29

30

33

27

24

24

21

18

19

18

16 

15

14

13

12

12 

11

10

1,153

37.2

0.879

1.01

Feb.

9.0

8.5

8.0

8.0

8.0

9.0

50

46

38

35

50

100

90

60

50

43

35

35

34

32

30

29

50

78 

84

70

60

64

-

1,213.5

43.3

1.02

1.07

Mar.

170

189

145

120

90

70

63

58

52

58

181

230

200

145

120

222

203

135

*100

90

82

77

74

66 

62

62

60

56

60 

62

105

3,407

110

2.60

3.00

Apr.

175

239

227

180

212

245

245

203

166

210

279

262

211

196

249

270

211

3.69

169

172

154

145

139

129

1^5

*311

*306

245

214

186

6,304

210

4.96

5.54

May

157

134

116

105

98

89

82

78

74

68

62

57

53

50

47

44

40

36

33

30

28

26

25

24 

33

50

39

38

34

106

1,925

62.1

1.47

1.69

June

*193

121

84

65

58

47

40

36

33

29

26

59

85

69

54

42

33

27

24

22

41

63

52

44 

45

41

36

30

26 

24

1,549

51.6

1.22

1.36

July

21

34

51

30

24

*21

20

16

14

12

10

8.5

7.2

6.4

5.9

6.8

7.4

6.4

5.7

4.8

4.3

3.9

3.6

3.9 

3.5

3.0

3.0

3.1

3.1 

2.6

2.1

348.2

11.2

0.265

0.31

Aug.

1.8

1.8

1.6

1.6

1.5

1.4

*2.0

2.1

*2.1

1.8

6.7

16

91

365

192

99

66

53

159

186

118

78

63

50 

39

32

32

32

25 

22

20

1,762.4

56.9

1.35

1.55

Sept.

19

17

15

13

11

9.3

7.7

6.6

5.7

5.1

5.0

5.5

4.6

4.1

3.9

3.8

3.6

3.4

3.6

3.6

3.6

3.2

2.9

11 

14

8.8

7.4

20

19 

15

255.4

8.51

0.201

0.22

Calendar year 1954: Max 820 Mln 3.3 Mean 87.6 Cfsm 2.07 In. 28.10

Water year 1954-55: Max 483 Mln 1.4 Mean 72.0 Cfsm 1.70 In. 23.09

Peak discharge (base, 600 cfs).--Nov. 3 (8 p.m.) 780 cfs (4.99 ft). 

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 3-10, 14, 15, 17, 22-26, Jan. 1, Jan. 5 to 

Mar. I, Mar. 3-9, 14, 15, 18-20, 24, 27-30.
CONNECTICUT RIVER BASIN 

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

187

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 2-| miles south of 

Marlboro, Cheshire County.

Drainage area. 36.0 sq mi.

Records available. October 1920 to September 1955. October 1920 monthly discharge only, 

published in WSP 1301.

Gage.--Water-stage recorder. Concrete control since July 18, 1938. Datum of gage is 

667.11 ft above mean sea level, datum of 1929 (levels by Corps of Engineers).

Average discharge.--35 years, 59.5 cfs.

Extremes. Maximum discharge during year. 511 cfs Mar. 11 (gage height, 4.92 ft); maximum 

gage height, 5.12 ft Feb. 11 (ice jam); minimum discharge, 2.6 cfs Aug. 8; minimum 

daily, 2.7 cfs Aug. 8.

1920-55: Maximum discharge, 5,960 cfs Sept. 21, 1938 (gage height, 7.89 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 jm); 

practically no flow War. 22, 1931; minimum daily discharge, 0.4 cfs Sept. 15-17, 1926.

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

lated by powerplant and several small reservoirs above station.

Flow reguRevisions (water years). WSP 641: 1925(M). WSP 871: Drainage area. 

24(M), 1926(M), 1929, 1933-34(M), 1939.

WSP 1231: 1921-

Ratlng tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Mar. 11 Mar. 12 to Sept. 30

1.9 

2.1 

2.5 

3.0 

3.5

5.5

10

23

42

61

3.8 

4.1 

4.5 

4.7

86

149

300

400

1.8 

2.0 

2.3 

2.6 

3.0

2.7

6.7

16

27

40

3.4 

3.8 

4.1 

4.5 

4.7

55

86

149

300

400

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

Z9

30

31

Total

Mean

Cfsm

In.

Oct.

*19

26

18

22

19

18

20

18

24

16

16

17

17

16

15

68

62

42

32 

27

25

19

29

17

15

15

15

15

20

56

56

792

25.5

0.708

0.82

Nov.

45

57

252

322

141

*98

65

57

51

47

44

44

46

58

40

54

57

68

69 

156

275

201

120

94

71

64

62

65

126

141

2,946

98.2

2.75

5,. 04

Dec.

109

79

62

52

49

45

41

40

41

46

45

41

41

45

152

125

80

164

400 

187

118

100

78

66

52

50

47

50

75

84

78

2,656

85.0

2.56

2.72

Jan.

63

64

78

62

52

49

45

39

*34

35

51

28

24

21

19

18

17

16

15 

14

15

12

12

12

11

11

11

10

10

9.2

 z 

845.8

27.2

0.756

0.87

Feb.

8.0

7.6

7.2

7,0

775

7.0

64

58

58

55

54

110

80

54

55

25

22

21

20

19

20

19

50

100

90

60

40

52

_

1,107.8

59.6

1.10

1.14

Mar.

160

239

114

62

54

48

50

45

40

44

218

514

180

114

85

215

200

86

*56 

54

57

45

51

45

42

45

42

38

40

56

105

2,944

95.0

2.64

3.04

Apr.

175

245

222

129

164

184

164

125

M

98

155

141

98

101

158

149

118

101

105 

112

105

92

89

86

170

*580

590

245

180

149

4,686

156

4.55

4.84

May

120

105

94

76

75

77

55

57

70

63

45

55

56

54

59

42

42

53

30 

51

25

20

21

50

50

85

58

54

28

~99~ 153

1,778

57.4

1.59

1.84

June

*215

107

71

47

44

44

54

32

51

24

21

51

92

61

43

30

24

20

it

52

105

68

50

76

50

59

26

22

19

1,508

50.5

1.40

1.56

July

14

17

45

28

19

14

*14

12

9.5

8.0

6.7

5.6

5.2

4.0

4.0

4.7

5.4

6.5

6.5 

5.8

5.6

5.6

4.9

4.1

4.0

5.4

5.2

5.4

6.5

4.9

5.1

288.8

9.52

0.259

0.50

Aug.

2.9

4.5

4.5

4.5

4.7

4.5

5.1

2.7

*4.1

4.5

7.0

11

44

502

94

46

206

76

276 

517

118

64

56

46

40

55

45

48

42

29

25

1,965.0

65.4

1.73

2.0^

Sept.

21

19

15

9.6

12

17

15

11

15

12

11

21

17

16

16

14

8.5

5.8 *frf

5.8

5.6

5.2

12

19

15

10

14

18

16

582.4

12.7

0.555

0.40

Calendar year 1954: Max 660 Min 4.0 Mean 66.2 Cfsm 1.84 In. 24.97

Water year 1954-55: Max 400 Min 2.7 Mean 59.9 Cfsm 1.66 In. 22.60

Peak discharge (base, 550 cfs). --No peak above base.

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 4-14, 17, 22-28, Jan. 4 to Mar. 1, M\r. 5-9, 

16-18, 20, 26-29 (no gage-height record Feb. 12-16).
188 CONNECTICUT RIVER BASIN 

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 Hlnsdale, Cheshire County, a quarter of a mile downstream from dam, and If miles 

upstream from mouth.

Drainage area.--420 sq ml.

Records available. March 1907 to December 1911, July 1914 to September 1955.

Gage.--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. 45 years, 657 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 3,020 cfs Apr. 27 (gage height, 6.56 ft); minimum, 50 cfs Aug. 7, 8; minimum dally, 59 cfs Aug. 8, 9.

1907-11, 1914-55: Maximum discharge, 18,500 cfs Mar. 29, 1920 (gage height, 

10.1 ft, from graph based on gage readings), from rating curve extended above 8,000 

cfs; maximum gage height, 20.2 ft Mar. 19, 1936, from floodmarks (lackwater from Connecticut River); minimum discharge, 10 cfs Sept. 9, 1953; minimum daily, 12 cfs 

Sept. 15, 1929.

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

Flow regulated by mills above station. High flow affected by Surry Mountain Reservoir 

since 1942 (see p. 233).

Revisions (water years). WSP 661: Drainage area. WSP 781: 1907-11 calendar years, 

1914-34. WSP 1301: 1915(M), 1917-19(M), 1921-33(M). WSP 1331: 1920(M).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

2.9 

3.2 

3.6

4.0

103

212

390

5.0 

6.0 

7.0

1,070

2,170

3,790

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

288 

284

272

276

*268

252

302

237

226

212

216

244

252

230

226

342

531

487

390

330

316

272

252

244

230

230

256

272

276

374

423

9,010

291

+0.07

Nov.

*451

748

1,860

1,830

1,560

1,340

1,200

1,090

791

648

609

570

518

445

469

469

512

570

1,010

1,900

2.120

1,870

1,570

1,390

1,130

1,030

915

1,080

1,450

31,579

1,053

+12.7

Dec.

1,440 

1,260

1,030

812

763

602

595

565

544

576

590

457

*457

661

900

1,180

1,090

1,180

2,270

2.57Q

1,890

1,430

1,170

1,180

952

742

756

735

798

922

968

30,885

996

0

Jan.

900 

763

885

885

777

770

668

570

475

451

445

412

384

*335

321

260

265

270

265

250

230

210

200

200

215

215

210

190

185

150

155

12,491

403

-0.90

Feb.

125 

115

110

105

115

110

358

544

368

297

447

1,010

826

609

499

*384

330

330

335

302

302

316

434

735

763

707

622

721

_

--------

11,919

426

+3.22

Mar.

1,180 

2,040

1,860

1,300

885

812

770

661

635

661

1,040

2,070

2.240

1,890

1,610

1,680

2,140

1,780

1,240

968

870

*960

862

798

749

770

680

616

596

714

1,010

36,087

1,164

-9.26

Apr.

1,430 

1,980

2,270

2,010

1,910

2,010

2,010

1,910

1,670

1,510

1,650

1,840

1,770

1,720

1,770

1,910

1,440

1,190

1,340

1,650

1,720

1,690

1,590

1,220

1,360

2,220

2.940

2,680

2,300

*1,980

________

54,690

1,823

-3.67

May

i^ffg

1^190

1,060

975

900

833

728

735

728

680

616

590

596

531

469

469

423

384

350

330

271

260

l6?

272

467

570

440

375

714

862

20,052

647

+0.78

June

1,480 

1.550

*1,160

870

735

628

538

475

440

406

357

477

1,010

1,040

848

668

557

445

352

516

418

694

777

609

635

596

505

493

445

374

19,898

663

-2.35

July

307

268

307

'272 357

260

263

230

206

172

158

149

139

120

121

126

133

124

114

112

99

97

93

81

*85

85

101

93

91

91

85

4,939

159

-0.19

Aug.

77 

72

70

73

72

73

73

59

59

60

77

176

*41X

1,390

1,330

1,140

1,120

1,140

1,360

1.910

1,350

862

960

724

499

390

352

412

368

307

284

17,250

556

+0.04

Sept.

 534 264 

209

177

160

152

149

147

136

131

121

134

139

142

131

126

114

112

110

2i

101

101

99

122

219

*206

164

174

230

214

4,617

154

-0.04

Adjusted for change in contents in Surry Mountain Reservoir

Mean

Cfsm

In.

291

0.693

0.80

1,065

2.54

2.83

Calendar year 1954: I

Water year 1954-55: I

996

2.37

2.73

402

0.957

1.10

429

1.02

1.06

1,155

2.75

3.17

1,819

4.33

4.83

648

1.54

1.78

661

1.57

1.76

159

0.379

0.44

556

1.32

1.53

154

0.367

0.41

Observed Adjusted

lax 3,200 Min 72 Mean 765 Mean 765 Cfsm 1.82 In. 24.71

lax 2,940 Min 59 Mean 694 Mean 694 Cfsm 1.65 In. 22.44

Peak discharge (base, 3,000 cfs). Apr. 27 (10:30 a.m. to 2 p.m.) 3,020 cfs (6.56 ft).

* Discharge measurement made on this day.

t Change in intents in Surry Mountain Reservoir, equivalent in cubic feet per second.

Note. Stage-discharge relation affected by ice Dec. 7, 8, 23, Jan. 17 to F?b. 6.
CONNECTICUT RIVER BASIN 

Tarbell Brook near Winchendon, Mass.

189

Location.--Lat 42°42'45", long 72°05 I 09", on left bank 0.1 mile downstream from Spud Brook, 

0.3 mile downstream from Massachusetts-New Hampshire State line, and 2-f miles northwest 

of Winchendon, Worcester County.

Drainage area.--18.2 sq mi.

Records available.--May 1916 to September 1955. Prior to October 1950, published as Sip 

Pond Brook near Winchendon.

Gage. Water-stage recorder. Datum of gage is 872.82 ft above-mean sea level, datum of

1929. May 29 to June 29, 1916, staff gage, June 30 to Dec. 12, 1916, water-stage re- 

 corder, and Dec. 13, 1916, to June 26, 1917, staff gage, at site 450 ft downstream at 

same datum.

Average discharge.--39 years, 30.0 cfs.

Extremes.--Maximum discharge during year, 173 cfs Apr. 27 (gage height, 8.14 ft); minimum, 

1.6 cfs Aug. 9.

1916-55: 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 except those for periods of ice effect or no gage-height record, 

which are fair. Plow regulated by Pearly and Sip Ponds, Damon Reservoirs, and small mill 

above station.

Revisions (water years). WSP 781: 1934. WSP 871: Drainage area. WSP 1051: 1928(M), 

1933-34. WSP 1301: 1917(M).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

5.0 

5.3 

5.6

6.0

1.3 

4.9

6.5 

7.0 

8.0 157

168

Discharge, in cubic feet per second, water year October 1954 to September 1955

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

3O 

31

Total

Mean

Cfsm

In.

Oct.

16

8.9

9.2

17

13

15

*14

12

7.0

770

15

14

15

13

12

12

16

28

2T

18

17

16

9.7

a8. 6

a IB

a 16

a 17

a!6

a!5

a!2 

12

442.4

14.3

0.786

0.90

Nov.

2020"

49

109

*T04

82

63

42

41

35

30

26

21

22

26

21

21

22

23

39

79

96

84

66

60

55

48

45

54

71

1,474

49.1

2.70

3.01

Dec.

74

65

53

40

30

34

29

26

24

24

22" 19

25

25

*43

60

55

57

98

104

83

71

58

45

42

38

36

33

38

48 

48

1,447

46.7

2.57

2.96

Jan.

42

41

44

41

36

35

33

26

25

27

22

18

18

17

10

10

16

*12

12

14

13

8.5

8.1

11

12

8.6

12

7.9

375

7.9 

11

607.5

19.6

1.08

1.24

Feb.

11

12

11

7.6

7.2

16 5.9

12

11

12

19

19

15

19

20

*15

17

14

11

10

14

10

19

24

27

28

30

32

-

------

448.7

16.0

0.879

0.92

Mar.

47

92

74

58

47

42

38

32

29

28

39

78

83

79

65

70

94

77

50

43

41

40

40

36

34

31

33

35

*E9

28

42

1,554

50.1

2.75

3.18

Apr.

58

76

93

84

77

80

84

77

64

57

59

64

60

55

54

65

64

57

50

58

57

54

52

52

64

124

162

137

*119

110

2,267

75.6

4.15

4.63

May

91

75

61

55

48

43

42

38

36

27

27

26

23

22

24

25

22

20

19

16

9.8

8.1

15

14

14

15

12

8.1

7.9

11 

19

871.9

28.1

1.54

1.78

June

36

42

30

20

20

22

17

16

15

12

7.9

13

20

25

18

16

*15

7.9

7.0

13

15

16

19

32

27

25

21

17

16

13

573.8

19.1

1.05

1.17

July

11

7.0

6.8

4.9

9.4

11

~9.2 13

5.6

4.9

8.6

9.6

9.7

11

8.0

4.2

4.1

*8.5

4.8

7.3

10

4.8

3.9

4.1

6.4

4.9

5.2

9.7

8.1

3.6 

5.0

222.1

7.16

0.393

0.45

Aug.

6.5

4.7

2.6

2.4

2.2

2.1

2.1

2.1

1.8

270

2.8

4.2

7.3

14

12

9.2

7.6

12

35

47

64

49

32

22

22

16

14

2O

23

18 

16

475.6

15.3

O.8U

0.97

Sept.

16

13

*10

7.0

5.8

9.4

11

10

10

6.2

4.9

11

10

10

9.9

7.0

4.4

3.3

^75

6.8

9.2

5.6

3.8

8.6

4.9

5.3

7.5

10

7.9

7.6

242.6

8.09

0.445

0.50

Calendar year 1954: Max 235 

Water year 1954-55: Max 162

Min 

Min

35.1

29.1

1.93

1.60

In. 26.17

21.71

Peak flischarge (b 

* Discharge measu

150 cfs).--Apr. . .27 (12 to 12:30 a.m.) 173 cfs (8.14 ft-).

on this day.

records, 

near

eauremen mae o ay. 

No gage-height record; discharge estimated

and records for Priest Brook near Winchendon, Millers River ne , 

Barre .

Note. --Stage-discharge relation affected by ice Dec. 26, Jan. 14, 15, 18-21, 23-25, 27, 28, Jan. 

Jan. 31 to Feb. 5, Feb. 12-14, 16, Mar. 8, 9.

on basis of 1 discharge measurement, weathe 

Winchendon, and Ware Rive
190 CONNECTICUT RIVER BASIN

Millers River near Winchendon, Mass.

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, and 2 miles west of Winchendon, Worcester County.

Drainage area. 83.0 sq mi.

Records available. June 1916 to September 1955.

Gage. Water-stage recorder. Concrete control since Oct. 6, 1933. Datum of gage is 826.66 

Ft above mean sea level, datum of 1929. Prior to July 27, 1916, chrin gage at bridge 

at same datum.

Average discharge.--39 years, 142 cfs.

Extremes.--Maximum discharge during year, 731 cfs Aug. 19 (gage height, 6.83 ft); minimum 

daily, 9.7 cfs Aug. 6-8.

1916-55: Maximum discharge, 8,500 cfs Sept. 22, 1938 (gage height, 21.55 ft, from 

floodmarks), from rating curve extended above 2,900 cfs on basis of computation of peak 

flow over dam; practically no flow because of regulation Sept. 20, 1918, Jan. 14, 1925.

Remarks. Records good except those- for periods of ice effect or no gafe-height record, 

which are fair. Flow regulated by powerplant and by Lake Monomonac and other reservoirs.

Revisions

21TMT

s (water y 

, 1922-24,

years). WSP 451: 1916. WSP 871: Drainage area. WSP 1051: 1919, 1920-

1928 (M), 1933-34.

Rating table, water year 1954-55, except periods of ice effect (gage,

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

(Backwater from grass Nov. 4-7, Nov. 20 to Dec. 1, Dec. 15-26, 30)

4.5 

5.0 

6.0 

6.5

139

311

524

642

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

156

T2T

84

61

77

103

*70

49

29

37

95

80

70

90

103

5b

38

107

92

80

76

75

31

27

3?

64

96

144

142 

122

42

2,446

78.9

0.951

1.10

Nov.

100

127

203

438

475

388

262

191

182

191

194

188

177

*170

171

162

158

165

167

278

416

418

382

301

260

249

235

224

308 

282

7,462

249

3.00

3.34

Dec.

248

217

187

145

129

108

105

103

121

144

52

70

123

108

321

393

360

386

524

470

*407

344

335

270

249

240

230

215

284

325

319

7,532

243

2.93

3.37

Jan.

2-gT 278

273

254

224

220

207

145

52

99

77

108

68

66

31

29

48

52

*62

45

45

31

27

48

49

48

34

28

29

27

43

3,014

97.2

1.17

1.35

Feb.

32

32

28

42

24

19

76

72

68

64

135

290

2T5

200

178

*165

158

128

37

36

82

39

201

191

146

63

82

159

-

2,972

106

1.28

1.33

Mar.

251

405

36T

304

260

238

224

190

179

TM

279

317

325

286

243

,268

284

246

224

231

221

216

220

204

203

205

209

197

*185 

202

253

7,619

246

2.96

3.41

Apr.

301

285

298

282

270

272

281

262

231

212

199

274

301

289

291

249

231

200

153

230

220

247

271

216

271

489

593 5~2T

483

454

8,879

296

3.57

3.98

May

405

34T

312

291

*255

252

231

212

200

178

172

157

114

49

45

95

101

43

38

64

32

26

59

36

32

79

75

26

ZZ_

39

4,008

129

1.55

1.80

June

137

182

129

45

42

85

92

35

49

63

31

38

82

101

84

73

67

32

26

30

57

88

109

128

58

45

63

42

35 

30

2,078

69.3

0.835

0.93

July

44

33

28

21

22

*28

29

4530"

23

22

21

20

22

22

19

16

*18

16

16

19

14

13

13

14

12

13

16

15 

12

647

20.9

0.252

0.29

Aug.

13

12

11

10

10

9.7

977

9.7

10

16

24

46

74

80

60

45

41

60

400

480

350

210

140

105

90

72

64

60

57 

*50

47

2,666.1

86.0

1.04

1.19

Sept.

46

43

*38

35

30

31

30

27

26

22_

24

31

34

38

37

37

37

42

59

164

151

126

123

136

134

131

131

139

118 

108

2,128

70.9

0.854

0.95

Calendar year 1954: Max 858 Min n Mean 171 Cfsm 2.06 In. 28.01

Water year 1954-55: Max 593 Min 9.7 Mean 141 Cfsm 1.70 In. 23.04

Peak discharge (base, 690 cfs). Aug. 19 (time unknown) 731 cfs (6.83 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Aug. 14-30; discharge estimated on basis of 1 discharge measurement, 

weather records, recorded range in stage, powerplant records, and records for Priest Brook near Winchendon and Tarbell Brook near Winchendon. Stage-discharge relstlon affected by ice Dec. 23, 26, 

Jan. 8, 9, 13, 14, 17-21, 24-26, Jan. 28 to Feb. 4, Feb. 7-14, 16, Mar. 8.
CONNECTICUT RIVER BASIN 191 

Priest Brook near Winchendon, Mass.

Location. Lat 42°40'57", long 72°06'56", on right bank 100 ft downstream from highway 

bridge, 3 miles upstream from mouth, and 3-| miles west of Winchendon, Worcestsr County.

Drainage area. 19.4 sq mi.

Records available. May 1916 to September 1955.

Gage.--Water-stage recorder. Concrete control since September 1936. Datum of gage is 

849.67 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.--39 years, 33.3 cfs.

Extremes.--Maximum discharge during year, 286 cfs Apr. 27 (gage height, 4.68 ft); minimum, 

0.1 cfs Aug. 4.

1916-55: Maximum discharge, 3,000 cfs Sept. 21, 1938 (gage height, 9.90 ft), from 

rating curve extended above 330 cfs on basis of contracted-opening-determinations at 

gage heights 8.4 and 9.90 ft; minimum, 0.08 cfs several times in September 1929.

Remarks.--Records good. Flow regulated by ponds and mill above station.

Revisions (water years).--WSP 451: 1916. WSP 871: Drainage area. WSP 1051: 1919, 

1922-24. WSP 1301: 1917(M), 1919-24(M), 1926-27(M), 1929(M), 1931-35(M).

Rating table, water year 1954-55 (gage height, in feet, and discharge, 

in cubic feet per second)

2.4

2.5 

2.7

3.0

3.5 

4.0 

5.0

159

358

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

11

11

12

11

11

11

*10

8.9

8.5

8.5

8.9

9.7

9.8

14

14

34

28

28

?4

21

18

16

15

12

12

-11

12

12

13 

22

27

464.3

15.0

0.773

0.89

Nov.

27

25

62

127

*116

92

68

53

43

25

25

26

26

25

25

26

20

21

28

49

126

135

113

86

70

58

45

45

57 

79

1,723

57.4

2.96

3.30

Dec.

74

66

55

45

40

33

25

23

^5

28

28

27

26

25

*48

59

57

63

129

117

91

73

44

46

43

37

34

33

42 

48

50

1,534

.49.5

2.55

2.94

Jan.

47

43

44

42

38

37

32

28

25

23

20

18

17

15

13

12

IS

*11

10

9.3

8.5

8.2

8.2

7.8

7.4

7.4

7.4

7.0

6.4 

6 . 1

5. 8

576.5

18.6

0.959

1.11

Feb.

5.5

5.5

5.5

5.5

5.5

5.2

19

15

12

11

22

62

50

37

25

*18

16

15

15

14

14

14

27

41

43

40

36

36

-

614.7

22.0

1.13

1.18

Mar.

52

99

95

73

51

42

38

32

29

31

51

95

121

109

81

86

109

89

62

46

42

36

37

35

33

34

36

 32

33

39

42

1,790

57.7

2.97

3.43

Apr.

64

103

130

107

92

92

109

96

78

57.

65

72

71

66

68

76

78

70

64

64

61

60

61

58

84

197

268

207

*143 

116

2,877

95.9

4.94

5.52

May

86

75

66

50

*45

42

40

38

38

34

28

27

26

28

24

23

23

18

17

15

14

13

12

12

!i

15

16

15

14

20

24

909

29.3

1.51

1.74

June

50

59

51

39

31

24

19

17

15

13

11

18

33

33

26

*21

17

13

11

9.7

11

27

34

37

42

38

29

22

17

13

780.7

26.0

1.34

1.50

July

9.3

8.5

10

13

14

18

14

10

8.5

6.7

15

11

5.0

*3.9

2.2

2.3

2.3

2.3

1.8

sa

11

6.7

5.4

5.2

4.3

3.4

3.2

3.2

2.8

z'.-s

216.0

6.97

0.359

0.41

Auf.

2.3

1.5

1.2

4.7

4.6

5.5

3.8

3.2

2.3

2.3

2.1

5.1

11

61

61

40

26

20

74

18.5

119

80

44

32

27

25

21

20

20

19

17

933.6

30.3

1.56

1.80

Sept.

19

21

*13

8.9

7.4

7.4

7.4

13

10

7.4

7.0

10

9.7

7.8

7.4

6.4

5.2

5.0

5.0

5.2

5.5

6.1

8.9

8.9

13

12

11

12

17

17

294.6

9.82

0.506

0.56

Calendar year 1954 : Max 278 Win 0.4 Mean 38.5 Cfsm 1.98 In. 26.96

Water year 1954-55: Max 268 Win 1.2 Mean 34.8 Cfsnj 1.79 In. 24.38

Peak discharge (base, 150 cfs). --Apr. 27 (9 to 11 a.m.) 286 cfs (4.68 ft); Aug. 20 (3 to 5:30 a.m.)

207 \JI cfs Ui o (4.28 y -± . GO ft). ± u. J .

* 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.
192 CONNECTICUT RIVER BASIN

Millers RLver at South Royalston, Mass.

Locat Ion.--Lat 42°37'47", long 72°09'03", on right bank 500 ft downstream from bridge in 

South Royalston, Worcester Coutr;y, 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 1955.

Gage.--Water-stage recorder. Datum of gage is 792.00 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--16 years, 313 3fs (adjusted for storage).

Extremes. Maximum discharge during year, 1,060 cfs Apr. 28, 29 (gage height, 6.24 ft); 

minimum daily, 23 cfs Aug. 10, LI.

1939-55: Maximum discharge, 4,400 cfs Apr. 13, 1940 (gage height, 8.40 ft); minimum daily, 16 cfs Sept. 25, 1939.

Maximum stage known, 15.9 ft Sept. 21 or 22, 1938, from f loodmarks.

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

Flow regulated by Lake Monomona: and other reservoirs, by mills and powerplants, and 

at high flow by Birch Hill Reservoir since 1941 (see p. 232).

Rating table, water year 1954-55, except periods of ice effect (gage

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

(Backwater from aquatic vegetation July 27 to Aug. 22)

3.8 

4.1 

4.5

5.0 

5.5 

6.0 

6.5

325

570

147

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

(t)

Oct.

264

233

202

155

160

196

153

136

112

105

151

165

152

148

193

240

256

268

244

206

182

167

135

116

*109

*124

149

226

230

294

240

5,711

184

-0.11

Nov.

233

302

440

852

948

932

852

709

540

450

410

395

361

348

338

320

307

312

330

442

745

845

866

797

703

631

570

540

592

*727

16,837

561

+3.82

Dec.

727

655

565

440

400

310

300

290

289

361

260

222

280

252

534

764

758

739

925

985

955

838

752

685

570

5OO

510

475

565

673

703

17,282

557

-0.90

Jan.

667

608

*620

592

525

510

450

430

3EO

260

230

250

200

190

150

140

150

145

150

125

120

102

96

96

110

110

100

86

80

76

72

7,760

250

-3.32

Feb.

76

74

68

70

75

62

270

275

230

*200

250

560

540

400

350

290

250

210

145

140

171

161

330

520

450

300

256

338

_

7,061

252

+1.57

Mar.

465

739

758

643

525

475

435

375

356

361

525

764

804

*758

655

603

661

614

530

465

440

425

435

430

425

445

450

410

375

410

490

16,246

524

+0.71

Apr.

576

637

685

667

631

620

655

649

581

515

485

505

540

535

540

376

265

*475

637

592

530

505

520

490

645

771

992

1,060

1,060

1,030

18,669

622

+ 15.6

May

970

880

771

655

555

490

470

435

415

380

348

320

280

202

183

196

236

166

147

146

134

109

*120

125

109

149

205

121

107

T25

146

9,695

313

-16.7

June

312

430

356

199

169

159

205

121

116

136

112

143

233

260

205

166

146

117

94

88

136

485

560

525

430

320

*240

193

150

123

6,929

231

-0.35

July

111

112

123

132

120

166

180

T52

136

102

86

84

72

66

66

66

71

63

59

53

58

58

51

49

46

43

40

40

42

39

33

2,519

81.3

-0.19

Aug.

31

31

29

*27

29

28

28

27

25

23

23

54

154

425

510

378

196

155

374

309

126

589

992

970

962

948

817

586

316

212

177

9,551

308

+0.52

Sept.

169

155

138

120

105

97

91

86

85

78

78

107

*104

96

91

88

85

85

80

128

263

169

166

197

276

~ 248

222

236

230

216

4,289

143

0

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

184 

0.984 

1.14

565 

3.02 

3.37

Calendar year 1954 : 

Water year 1954-55:

557 

2.98 

3.43

247 

1.32 

1.52

254 

1.36 

1.41

525 

2.81 

3.24

638 

3.41 

3.81

296 

1.58 

1.83

Observed

Max 1,320 Hin 45 Mean 385 

Max 1,060 Min 23 Mean 336

231 

1.24 

1.38

81.1 

0.434 

0.50

309

..65 

1.90

143 

0.765 

0.85

Adjusted

Mean 385 Cfs-n 2.06 In. 27.96 

Mean 336 Cfsn 1.80 In. 24.38

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second in Birch Hill Reservoir.

Note. Stage-discharge relation affected by ice Dec. 6-8, 26, Jan. 7 to Feb. 20, Feb. 23-26. Discharge in cubic feet per second per square mile and runoff in inches may not represent natural flow 

because of regulation.
CONNECTICUT RIVER BASIN 193

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,

rook, and 3^ miles north of Athol, Worcester County.

October 1915 to May 1916 monthly

miles downstream from Lawrence Br

Drainage area. 50.4 sq mi.

Records available.--October 1915 to September 1955 

discharge only, published in WSP 1301.

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. 40 years, 84.5 cfs (adjusted for storage)

Extremes.--Maximum discharge during year, 432 cfs Apr. 29 (gage height, 4.46 ft); minimum, 

0.03 cfs Aug. 21, 22; minimum daily, 0.04 cfs Aug. 21

1915-55: Maximum discharge, 5,140 cfs Sept. 21, 1938 (gage height, 8.60 ft, from 

floodmarks site and datum then in use), from rating curve extended above 1,500 cfs on 

basis of determination of peak flow by computation of flow over dam and contractedopening determination; minimum, 0.03 cfs Jan. 4, Mar 3 1949 Aug 21 2" 19SS- 

 minimum daily, that of Aug. 21, 1955 ' ' ""'

WSP 1051: 1 ? 16(M),

Rating table, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feeb per second)

2.7

0.03

.1

.4

.9 

2.8 

6.2

2.8 

3.1 

3.4 

3.7 

4.D 

4.5

18

52

101

172

259

450

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

27

26

26

25

23

20

19

17

IT

18

20

23

21

20

18

4O

62

BY

43

37

32

28

25

23

21

19

*19

20

23

46

59

869

28. 0

+0.04

Nov.

53

46

55

66

112

125

130

133

9O

74

69

49

¥2- 42

46

44

44

47

49

88

162

216

228 22~8"

222

119

93

112

159

167

3,110

104

+8.68

Dec.

17O

152

137

114

84

*71

63

51

51

59

77

58

38

51

92

140

142

128

135

177

228 22~2~

172

147

114

90

72

72

72

123

145

3,447

111

+0.30

Jan.

121

103

1O3

1O3

103

82

*72

72

55

52

49

39

49

49

28

21

21

21

21

21

21

21

21

18

18

18

18

18

15

T5

15

1,383

44.6

-2.24

Feb.

14

14

14

4.9

.1

.1

*24 .08

35

35

35

96

157

IS4

127

39

27

27

27

27

27

28

47

92

103

1O5

86

90

_

1,435.18

51.3

+2.98

Mar.

108

18O

259

250

194

125

101

79

69

W

71

160

269

279

2BT

219

234

*244

211

147

119

99

92

92

72

77

93

84

77

77

95

4,496

145

-0.67

Apr.

147

202

253

285

279

292

296

282

237

194

170

164

157

147

157

110

62

12T

225

244

214

186

160

150

167

237

296

393

428

4OT

6,662

222

+1.85

May

365

*31^

276

225

170

133

116

105

101

90

80

74

68

62

58

53

49

47

43

39

37

34

30

26

?7

*67

8O

63

52

63

76

3,022

97.5

-10.3

June

137

157

128

95

82

68

52

44

40

37

32

47

82

80

65

49

38

29

21

17

27

1O8

88

53

*59

56

38

26

20

16

1,791

59.7

-0.08

July

14

a!2

a21

a25

a20

a21

a40

a42

aSF

al8

14

11

9.0

8.0

7.1

7.1

9.6

8.5

7.1

5.8

5.0

4.7

4.4

4.7

5.0

4.4

4.0

3.7

3.7

3.4

a2.8

371.0

12. 0

-0.04

Aug.

2.6

2.6

2.1

1.9

1.7

1.6

1.4

1.4

1.2

1.2

1.3

9.3

29

.4

126

279

225

87

.2

.06

143 .04

269

256

244

231

228

24O

100

36

30

2,555.OO

82.4

+0.07

Sept.

28

24

2O

18

14

14

13

11

9.6

8.5

10

24

21

14

12

*11

9.6

8.5

8.0

8.0

8.O

6.7

12~5.8

39

34

22

26

38

31

508.7

17.0

0

Adjusted for change In conbents In Tully Reservoir

Mean 

Cfsm 

In.

28.1 

0.558 

O.64

112 

2.22 

2.49

Calendar year 1954 : 

Water year 1954-55;

111 

2.20 

2.55

42.4 

0.841 

O.97

54.2 

1.O8 

1.12

144 

2.86 

3.3O

Observed

224 

4.44 

4.96

87.2 

1.73 

2.OO

Max 439 Mln 2.6 Mean 85.0 

Max 428 Mln O.O4 Mean 81.2

59.6 

1.18 

1.32

11.9 

0.236 

O.27

82.5 

1.64 

1.89

17. 0 

0.337 

0.38

Adjusted

Mean 85. O Cfsm 1.69 In. 22.92 

Mean 81.2 Cfsm 1.61 In. 21.89

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second, In Tully Reservoir.

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

and records for Moss Brook at Wendell Depot.
194 CONNECTICUT RIVER BASIN

Moss Brook at Wendell Depot, Mass.

Location. Lat 42°36 I 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 1955. Published as 

"at Wendell" 1909-10.

Gage. Staff gage read twice daily except during period Jan. 17 to Mar. 29, 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 diffsrent datum. April 

to August 1910, staff gage and sharp-crested weir at site 300 ft downstream at 

different datum.

Average discharge.--39 years (1916-55), 21.2 cfs.

Extremes.--Maximum discharge during year, 735 cfs June 21 (gage height, 5.00 ft, from 

graph based on gage readings), from rating curve extended above 400 cfs on basis of 

slope-area determinations at gage heights 5.62 and 6.30 ft; minimum, 1.1 cfs Aug. 9, 10.

1916-55: Maximum discharge, 1,540 cfs Mar. 19, 1936 (gage height, 6.30 ft, from 

floodmarks), from rating curve extended above 400 cfs as described above; minimum, 

0.2 cfs Sept. 4, 5, 1929.

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

Revisions (water years). WSP 821: 1936 

1919-24 J-^XCf ^ ^ > 1929(m).WSP A.JUJ \UL/ m H 1_» L 1231: -L <-, O -L . 1917-21 4-^J.f f-i J. !*!/> J-JLjLJ}

1930-35(M), 1939(M), 1941(M), 1944(M), 1949(M).

WSP 891: Drainage area. WSP 1051: 1917, 

1922, 1923(M), 1924-26, 1927-28(M), 1929,

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.5

1.6 10

1.8 

2.1 

2.5 

3.0 

3.5 

4.0 

4.5

18

36

72

138

235

364

530

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

4.0

4.6

6.6

5.1

4.5

4.5

4.4

3.9

3.6 379

5.0

5.1

4.5

4.2

3.9

20

T9

11

8.0

6.6

5.6

5.1

4.6

4.4

4.2

*4.0

4.2

4.4

5.5

16

16

206.4

6.66

0.541

0.62

Nov.

12

9.6

35

62

39

25

18

14

12

11

9.6

9.8

9.3

9.0

8.6

8.3

8.0

978

12

41

~g% 79

42

30

28

27

24

23

41

52

772.0

25.7

2.09

2.33

Dec.

*40

31

25

21

18

14

12

13

14

15

15

14

12

14

34

35

30

36

52" 80

38

31

29

25

23

21

19

17

2O

26

30

804

25.9

2.11

2.43

Jan.

24

25

26

*23

17

17

17

16

15

13

11

11

10

8.8

7.6

.O

.8

>.4

.8

.4

.0

.8

.8

.5

.4

.3

.3

.1

.7

.5

3.5

319.5

10.3

0.837

0.97

Feb.

3.2

3.1

3.0

3.0

3.0

3.2

*27

35

25

12

17

42

29

22

15

12

11

10

9.2

8.4

8.6

8.4

17

26

23

19

19

19

_

433.1

15.5

1.26

1.31

Mar.

64

56

40

24

21

19

18

16

17

22

35

8074"

63

39

49

76

*46

28

25

23

25

29

27

26

31

25

18

15

2T

3S

1,085

35.0

2.85

3.28

Apr.

58

84

85

52

52

57

62

47

36

33

38

38

33

3136"

44

38

33

31

33

*31

33

33

31

47

137

226

TZS

91

82

1,760

58.7

4.77

5.32

May

60

IS

38

33

31

31

28

25

24

21

18

16

15

16

14

12

11

10

9.6

8.8

8.0

7.3

6.8

6.6

37T

*28

18

11

12

24

626.2

20.2

1.64

1.89

June

23

19

13

11

13

10

8.6

7.8

7.3

6.6

5.8

21

29

21

*12

11

15

9.8

7.6

6.0

146

*426

ITS

53

44

36

25

20

21

16

1,162.5

3S.8

3.15

3.51

July

12

1O

32

30

20

21

26

21

12

9.6

7.6

5.6

4.6

4.2

3.8

4.9

9.3

6.0

4.2

3.4

2.8

2.4

2.3

3.1

2.6

2.3

2.0

2.1

2.1

T-^g272. 5

8.79

0.715

0.82

Aug.

1.5

1.4

1.4

1.3

1.3

1.3

*1.3

1.3

1.1

T7T

1.4

16

92

178

66

28

14

32

248

25T

75

40

30

24

18

13

12

14

10

8.8

8.6

1,165.8

37.6

3.06

3.52

Sept.

8.0

7.0

6.0

5.6

5.0

4.5

4.0

4.2

22

23

13

11

6.3

5.3

4.5

*4.0

3.8

3.6

3.3

3.2

3.2

3.1

17 3.0

18

10

7.O

12

10

8 fj

 V

238.6

7.95

0.646

0.72

Calendar year 1954: Max 226 Min l.o Mean 19. o Cfsm 1.54 In. 2O.97

Water aueyear 1954-55: iyD4-D£>: Max piajt426£b Min w1.1 Mean piean24.2 z^zCfsm 01 HIII 1.97 iyvIn. i26.72 £b. /£

Peak discharge (base. 16O cfsl. Apr- 27 (4 p.m.) 253 (3.58 ft); June 21 (12 p.m.) 735 cfs 

5.00 ft); Aug. 13 (9 p.m.) 3O4 cfs (3.78 ft); Aug. 19 (11 p.m.) 645 cfs (4.8O ft). 

* Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Dec. 4, 8, 19, 23, 25, 26, Jan. 9 to Feb. 2, Feb. 7

to Mar. 12. 12.
CONNECTICUT RIVER BASIN 195

Millers River at Erving, Mass.

Location. Lat 42°35'51", long 72°26'19", on right bank 75 ft downstream from bridge

at Parley, 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.

Records available.--August 1914 to September 1955. 

Gage. Water-stage recorder. Altitude of gage is 380 ft (from topographic map). Prior

to June 30, 1915, staff gage, June 30, 1915, to Sept. 20, 1938, water-stage recorder,

and Sept. 21 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. 41 years, 632 cfs (adjusted for storage). 

Extremes.--Maximum discharge during year, 3,170 cfs Aug. 19 (gage height, 6.00 ft);

minimum daily, 45 cfs Aug. 7.

1914-55: 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 determiratlons;

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 Tully Reservoirs (see p. 232). 

Revisions (water years). WSP 641: 1920(M). WSP 756: Drainage area. WSP 781: 1928(M),

1933(M).WSP 1301: 1915(M).

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.7 

1.9 

2.2 

2.5 

3.0

72

126

199

396

3.5

4.0 

5.0 

6.0

705

1,040

1,870

3,170

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

387

391

372

325

291

295

299

263

220

23.1

243

295

283

267

423

669 59~8

428

434 

372

329

299 

274

226

226

211

*243

286

352

474

510

10,385

335

-0.07

Nov.

445

462

930

1,490

1,440

1,380

1,270

1,150

914

764

686

653

588

556

556

530

510

530

568 

928

1,560

1,620 

1,510

1,340

1,300

1,180

977

949

1,170

1,400

29,356

979

+12.5

Dec.

*1,310

1,200

1,060

868

776

600

550

540

600

653

620

480

550

510

930

1,230

1,260

1,320

1.810 

1,680

1,590

1,440 

1,250

1,200

950

822

894

835

894

1,100

1,190

30,662

989

-0.60

Jan.

1.110

1,060

1,100

*1,050

949

914

820

700

610

500

440

430

365

315

290

260

265

270

275 

230

220

200 

185

195

200

200

180

165

150

145

140

13,933

449

-5.56

Feb.

140

140

130

125

125

120

550

6 SO

540

420

520

1.100

1,000

800

650

490

430

410

330 

315

370

400 

600

900

800

660

570

680

_

13,995

500

+4.55

Mar.

1,140

1,540

1,440

1,260

1,080

935

822

757

718

712

1,060

1,530

1.580

1,520

1,350

1,330

1,400

*1,270

1,120 

956

880

861 

887

854

848

861

887

822

744

809

963

32,936

1,062

+0.04

Apr.

1,180

1,330

1,380

1,400

1,380

1,370

1,480

1,390

1,240

1,080

1,020

1,020

1,050

1,030

1,060

1,060

582

75T

1,030 

1,140

1,030

977 

970

928

1,240

1,980

2.810

2,410

2,350

2,170

39,844

1,328

+17.4

May

.920

,710

,510

,250

,070

942

880

835

802

731

672

620

575

492

428

401

462

428

362 

329

295

253 

239

260

292

*428

462

372

303

376

434

20,133

649

-27.0

June

666

809

738

549

445

396

386

334

275

271

260

315

523

549

468

386

347

283

226 

211

328

1.440 

1,160

921

835

666

*504

418

352

295

15,356

512

-0.42

July

256

276

372

334

275

357

462 376"

303

253

271

136

170

150

144

160

186

175

135 

127

117

118 

106

118

128

101

98

98

92

86

86

6,066

196

-0.22

Aug.

102

84

78

76

74

*49

45

35

70

68

87

148

865

1,470

887

900

679

653

2,210 

1, Wo

1,030

774 

,410

,400

,370

,340

,240

,050

750

453

357

21,694

700

+C.60

Sept.

343

321

253

236

217

232

214

214

220

191

190

295

260

236

*2b6

208

172

160

195 

322

304

260 

236

336

450

401

343

372

391

347

8,175

272

0

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

335 

0.893 

1.03

991 

2.64 

2.9E

988 

2.63 

3.04

444 

1.18 

1.36

504 

1.34 

1.40

1,062 

2.83 

3.27

1,346 

3.59 

4.00

622 

1.66 

1.91

Observed

Calendar year 1954: 

Water year 1954-55:

Max 2,300 Min 49 Mean 706 

Max 2,810 Min 45 Mean 664

511 

1.36 

1.52

195 

0.520 

0.60

700 

1.87 

£.15

272 

0.725 

0.81

Adjusted

Mean 707 Cfsm 1.89 In. 25.58 

Mean 664 Cfsm 1.77 In. 24.04

* Discharge measurement made on this day.

t Change in contents equivalent in cubic feet per second, in Birch Hill and Tully Reservoirs.

Not£. Stage-discharge relation affected by ice Dec. 6-9, 12-15, 23-25, Jan. 7 to Feb. 28.
96 CONNECTICUT RIVER BASIN

Connecticut River at Turners Falls, Mass.

Location. Lat 42°36'40", long 72°33'20", at dam of Western Massachusetts Electric Co., 

at Turners Falls, Franklin County, 0.2 mile upstream from Falls River.

Drainage area. 7,163 sq mi.

Records available. January 1915 to September 1955.

Average discharge. 40 years, 11,960 cfs (adjusted for storage).

Remarks. Discharge computed by adding flow over and through dam, flow Tor 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. 232), and other reservoirs (combined usable capacity, about 

19| billion cubic feet).

Cooperation. Records furnished by Western Massachusetts Electric Co. 

Revisions (water years). WSP 741: 1932. WSP 891: Drainage area.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

8,960

9,010

5,780

8,160

13,800

16,600

16,500

14,700

12,600

10,800

9,820

9,310

9,230

9,460 

11,900

14,600

10,900

10,200

8,280

9,050

9,200

8,260

5,320

5,740,

5,350

6,780

6,650

8,240

8,840

12,000

5,990

300,030

9,678

-35.8

Nov.

9,170

9,390

20,900

54,900

23,600

19,500

14,800

14,900

10,600

11,800

11,100

9,660

11,100

1,760 

8,910

10,600

10,100

8,430

8,620

9,520

25,900

32,200

33,600

28,400

23,500

17,400

15,500

14,900

15,000

16,400

482,160

16,070

+87.1

Dec.

20,200

17,900

15,600

15,500

6.990

9,040

9,910

8,320

9,680

12,200

13,000

8,880

8,700

10,700 

14,100

16,500

15,900

18,000

27.500

26,000

19,300

14,300

15,300

15,400

12,400

11,100

9,110

13,300

14,400

18,900

15,700

443,630

14,310

-856

Jan.

15,800

17,600

14,100

12,800

13,500

12,700

13,200

10,500

5,990

7,930

8,840

9,140

8,090

8,330 

7,350

5,650

7,220

8,560

7,180

6,980

7,130

5,880

2,670

7,260

6,860

5,820

5,420

5,970

2,020

1.220

6,680

258,390

8,335

-1,152

Feb.

4,770

4,920

4,730

4,360

1.260

2,660

9,310

6,250

5,910

5,940

7,120

7,750

7,070

7,850 

7,460

7,430

7,380

7,240

6,030

3,280

7,160

7,580

6,920

8,550

12,800

15.400

12,206

12,700

-

200,030

7,144

-592

Mar.

13,200

25,100

20,500

16,400

15,100

12,000

10,400

9,760

9,580

8.810

15,100

27,100

30, 600

26,000 

22,500

24,200

27,000

24,600

21,000

16,900

15,800

15,400

15,100

15,600

15,500

12,600

11,200

10,300

11,000

9,860

10,500

510,310

16,460

-418

Apr.

16,900

26,4OO

33,400

27,200

28,300

35,600

41,300

56,500

46,900

40,500

56,200

65,200

56,500

50,000 

48,000

79,600

75,900

66,200

60,100

58,500

56,100

51,500

45,600

41,700

41,700

49,600

49,600

45,700

40,400

56,600

*1,427.1

47,570

+1,986

May

50.500

26,200

24,200

19,800

21,200

20,600

21,100

20,200

18,600

18,600

19,900

18,700

15,600

14,100 

11,700

10,800

9,140

9,700

9,680

8,500

7,740

2,480

7,766

8,720

8,200

8,990

11,300

11,600

4,510

9,290

11,700

441,110

14,230

+806

June

12,400

25,100

24,10O

18,000

14,500

14,500

11,200

9,270

7,320

6,940

882

2,990"

10,400

14,400 

14,500

13,400

15,100

12,500

4,640

7,220

6,570

9,440

9,880

10,300

8,960

6,630

8,460

8,560

6,960

6,100

518,622

10,620

+582

July

7.170

57810

1,530

5,860

5,720

4,610

5,760

4,450

1,140

375

5,050

5,880

5,500

5,840 

5,850

138

590

4,060

3,570

2,710

5,480

5,460

158

138

3,180

2,720

2,750

5,910

4,120

158

158

93,525

5,017

-200

Aug.

2,620

2,640

1,740

1,650

1,560

244

300

790

2,520

2,900

5,940

9,590

15,500

51,400 

27,800

15,900

14,900

15,000

18,500

17,300

9,890

9,050

7,800

8,550

10,100

8,820

4,920

5,230

6,640

6,450

6,480

268,504

8,661

+26.4

Sept.

6,270

6.560

5,510

152

158

5,560

6,190

4,480

4,620

226

158

4,060

5,880

5,010 

2,720

2,260

138

158

5,850

5,750

5,180

2,260

2,620

5,600

487

3,720

5,260

4,240

5,790

4,690

95,257

5,175

-652

Adjusted for change in reservoir contents

Mean 

Cfsra 

In.

9,645 

1.55 

1.55

16.16C 

2.2f 

2.52

Calendar year 1954: 

Water year 1954-55:

13,460 

1.88 

2.17

7,184 

1.00 

1.16

6,552 

0.915 

0.95

16,040 

2.24 

2.58

49,560 

6.92 

7.72

15,040 

2.10 

2,42

Observed

Max 72,500 Min 257 Mean 15,940 

Max 79,600 Min 138 Mean 15,260

11,000 

1.54 

1.71

2,817 

0.395 

0.45

8,688 

1.21 

1.40

2,524 

0.352 

0.39

Adjusted

Mean 15,970 Cfsn 2.23 In. 30.27 

Mean 15,200 Cfs-n 1.84 In. 25.02

t Change in contents In First Connecticut and Second Connecticut Lakes, Lake Francis, Comerford 

Station Pond, Moore Reservoir, Union Village Reservoir, 4 reservoirs in Mascoma River basin, 

Sunapee Lake, and Surry Mountain, Birch Hill, and Tully Reservoirs, equivalent in cubic feet per 

second.

t Expressed in thousands.
CONNECTICUT RIVER BASIN 197

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 1955. 

Gage. Water-stage recorder. Datum of gage is 517.36 ft above mean sea level, datum of

1929.

Average discharge. 42 years, 898 cfs (adjusted for storage). 

Extremes. Maximum discharge during year, 8,570 cfs Aug. 19 (gage height, 7.65 ft);

minimum daily, 47 cfs July 31, Aug. 7.

1913-55: 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; minimum

daily, 5 cfs June 17, 1921. 

Remarks. Records good. Flow regulated by Somerset Reservoir, since 1924 by Karriman

Reservoir (see p. 232), and by several powerplants above station. 

Revisions (water years). WSP 781: 1915(M). WSP 1301: 1918(M).

Rating tables, water year 1954-55, except periods of ice effect (gage 

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

(Shifting-control method used Oct. 9, lo, 12)

Oct. 1 to Nov. 3 

Aug. 2O to Sept. 3o Nov. 4 to Aug. 19

1.5 74

1.8 161

2.1 278

2.5 500

3.0 910

4.0 1,980

5.0 3,430

7.0 7,140

1.4

1.7

45

111

2.1 

2.5

253

500

Note. Same as preceding table above 2.5 ft.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

688

430

253

694

632

678

317

237

84

BT

274

106

471

535

664

1, 570 

584

818

873

721

788

854

294

171 

654

732

786

*920

751

1,040

368

18,071

583

-99.9

Nov.

866

813

5,830

3,360

2,920

2,330

1,480

1,210

1,170

1,100

1,080

1,090

1,050

374 534"

1,080 

1,090

1,150

1,170

1,980

5.850

3,250

2,080

1,850 

1,780

1,370

1,310

1,130

1,440

1,440

53,477

1,783

+144

Dec.

1,330

1,260

*1,220

1,170

884

1,090

1,110

1,190

1,140

1,210

1,190

1,140

1,120

1,360

2.630

1,620 

1,420

2,160

2,340

1,680

1,480

1,360

1,300

1,340 

1,280

1,240

1,220

1,240

1,680

1,510

1,390

43,304

1,397

-91.7

Jan.

1,120

1,260

1,320

1,290

*1,250

1,270

1,190

1,490

1,430

1,150

1,200

1,240

1,330

1,300

1,290

534 

1,190

1,200

1,220

1,170

1,100

1,060

1,050

1,050 

1,040

1,030

1,020.

990

980

373 550"

35,037

1,130

-707

Feb.

1,000

1,040

970

1,000

840

294

I,o5o"

1,010

*1,120

1,100

1,310

1,260

790

980

1,170

1,180 

1,150

1,140

902

330

937

1,140

1,270

1.390 

1,270

1,230

1,200

1,240

-

--------

29,283

1,046

-455

Mar.

1,530

1,730

1,410

1,320

1,270

1,250

1,180

1,150

1,150

1,310

1,980

2,280

1,670

1,390

*1,560

2,290 

2,100

1,790

1,120

1,020

1,060

1,400

1,460

1,240 

1,240

1.C7C '910

991

1,210

1,300

1,440

43,821

1,414

-48.2

Apr.

1,720

1,850

1,860

1,680

1,990

2,360

2,640

2,080

1,450

1,860

3,260

2,940

2,400

2,330

3,770

3,670 

2,610

2,020

*2,150

2,240

2,210

1,970

1,800

1,600 

3,000

5.550

3,650

3,000

2,250

1.550

________

71,660

2,389

+1,326

May

1.100

990

750

960

1,000

1,100

900

460

800

700

720

740

720

570

285

420 

520

460

410

460

140

110 55B"

*221 

365

222

298

139

143

357

408

16,723

539

+37.3

June

404

562

548

167

116

466

566

620

635

727

247

132

362

726

637

442 

476

254

73

272

636

732

57?

706 

279

92

69

ITS

168

*76

11,978

399

-149

July

90

83

139

138

95

96

98

162

55

75

78

63

71

75

76

72 

171

373

638

649

618

713

354

64 

356

626

639

686

636

204

47

8,210

265

-178

Aug.

394

418

238

284

*321

78

47

227

122

101

102

173

1,450

2,980

1,940

1,480 

1,410

2,400

5,240

1,366

578

880

888

999 

804

785

290

230

803

811

743

28,576

922

+38.6

Sept.

852

854

450

128

125

568

724

658

688

246

164

516

652

600

*494

560 

393

175

482

868

630

608

632

550 

299

658

598

748

749

740

16,407

547

-314

Adjusted for change in reservoir contents

Mean 

Cf am 

In.

483 

1.33 

1.54

1,927 

5.32 

5.94

Calendar year- 1954: 

Water year 1954-55:

1,305 

3.60 

4.16

423 

1.17 

1.35

591 

1.63 

1.70

1,365 

3.77 

4.35

3,714 

10.3 

11.45

577 

1.59 

1.84

Observed

Max 5,85O Min 43 Mean 965 

Max 5,850 Min 47 Mean 1,032

250 

0.691 

0.77

87.3 

0.241 

0.28

960 

2.65 

3.06

232

0.641 

0.72

Adjusted

Mean 1,O11 Cfsm 2.73 In. 37. 9O 

Mean 990 Cfsm 2.73 In. 37.16

* Discharge measurement made on this day.

t Change in contents, equivalent in cubic feet per second, in Somerset and Harriman Reservoirs.

Note. No gage-height record Apr. 25 to May 23, Sept. 14; discharge estimated on basis of weather 

records, recorded range in stage, powerplant records, and records for station near West Deerfield. 

Stage-discharge relation affected by ice Dec. 23, Jan. 11-15, 17-29, Jan. 31 to Feb. 4, Feb. 13, 14, 

Mar. 7-9.
CONNECTICUT RIVER BASIN 

North River at Shattuckville, Mass.

Location. Lat 42°38'18", long 72°43'32", on right bank in Shattuckville, Franklin 

County, IT; miles south of Griswoldville and 1.3 miles upstream from mouth.

Drainage area. 88.4 sq mi.

Records available.--October 1939 to September 1955. October, November 1?39 monthly discharge only, published in WSP 1301.

Gage. Water-stage recorder. Datum of gage is 458.36 ft above mean sea level, datum of 

1929.

Average discharge. 16 years, 179 ofs.

Extremes. Maximum discharge during year, 4,660 cfs Nov. 3 (gage height, 7.44 ft); minimum, 9.0 cfs Aug. 6, 7; minimum daily, 9.4 cfs Aug. 6, 7.

1939-55: Maximum discharge, 10,000 cfs Dec. 31, 1948 (gage height, 9.62 ft), from 

rating curve extended above 3,600 cfs on basis of computation of peak flow over dam; 

minimum daily, 5.1 cfs Oct. 3, 1948.

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

fluctuation at low flow caused by mill above station; prior to 1950, greater regulation by mill.

Revisions (water years). WSP 1111: 1945(M).

Rating table, water year 1954-55, except periods of ice effect (ga<;e 

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

1.5

1.6 

1.8 

2.0 

2.5 

3.0

117

230

3.5 

4.0 

5.0 

6.0 

6.5

393

635

1,310

2,390

3,120

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cf sm

In.

Oct.

51

60

61

54

50

49

48

44

43

45

50 

49

45

42

44

371

158

101

82 

75

69

64

60

57

52

51

52

*61

73

136

125

2,322

74.9

0.847

0.98

Nov.

91

77

2,590

886

422

293

236

206

181

161

151 

144

130

128

119

112

110

176

172 

668

1,370

618

371

313

316

284

259

253

361

337

11,535

384

4.34

4.85

Dec.

281

244

*208

175

181

145

140

140

146

170

153

135

123

324

1,250

446

287

778

821 

409

297

236

215

225

185

170

170

166

388

293

236

9,117

294

3.33

3.84

Jan.

196

193

203

179

*150

164

130

120

115

120

95 

86

88

78

76

76

66

62

62 

58

53

56

58

59

56

54

54

52

50

50

50

2,909

93.8

1.06

1.22

Feb.

47

44

42

40

3Ci

37

180

150

*110

90

190 

185

100

115

101

86

75

76

73 

75

76

73

135

185

160

120

99

144

-------

2,838

101

1.14

1.19

Mar.

360

470

265

170

151

153

151

120

T20

177

553 

773

64T

420

*347

698

454

274

222

210

203

186

186

164

172

166

151

130

135

234

383

8,839

285

3.22

3.72

Apr.

637

932

615

428

579

717

791

542

502

1,050

1,290 

881

635

624

1,060

919

624

472

*547 

486

£20

382

361

300

1,120"

968

739

472

432

347

19,872

662

7.49

8.36

Hay

297

259

233

214

198

186

166

164

151

136

123 

115

97

104

93

85

80

76

68 

61

59

57

55

*54

502

251

126

97

135

290 

138

4,470

144

1.63

1.88

June

121

101

86

76

73

65

60

61

61

57

52 

108

112

83

66

54

48

43

40 

40

68

154

64

*57

73

54

50

61

44

56

2,068

68.9

0.779

0.87

July

35

56

52

58

52

59

5T

40

55

51

28 

23

22

21

21

22

44

27

24 

22

20

18

18

18

20

19

17

19

22

20 

16

874

28.2

0.519

0.57

Aug.

14

12

12

12

*10

9.4

974

11

11

11

52

74

1,180

848

294

134

94

595

1.920 

548

268

244

193

149

108

99

88

79

68

62 

65

7,055.8

228

2.58

2.97

Sept.

61

55

51

49

45

45

41

57

54

55

54 

55

52

30

*31

50

50

28

27 

26

26

25

24

16?

115

59

44

118

80

57

1,471

49.0

0.554

0.62

Calendar year 1954: Max 2,590 Hin 12 Mean 192 Cfsm 2.17 In. 29.49

Water year 1954-55: 954-55: Max Max 2,590 2.590_____Hin Hin 9.4 9.4 Mean Mean 201 201_____Cfsm Cfsm 2.27 2.27 In. In. 30.87 50.87__________ 

arge (base. 1,880 cfs).--Nov. 5 (12 m.) 4,660 cfs (7.44 ft); Dec. 15 (2:50 a.m.) 2,080 

)i Apr. 10 (6 to 6:50 p.m.) 1,930 cfs (5.64 ft); Apr. 25 (7:50 p.m.) 1,960 ofs (5.66 ft)j 

.m.) 2,640 cfs (6.18 ft); Aug. 19 (10 a.m.) 5,940 cfs (7.02 ft), 

e measurement made on this dav.

Peak discharg 

cfs (5.77 ft)

* Discharge measurement made on this day.

Note . Stage-discharge relation affected by ice D

Feb. 14, Feb. 16, 19-21, 24-26, Mar. 1-4, 8, 9, 28,

c. 4, 6-8 

29.

12, 25, 25-27, Jan. 5, Jan. 7 to
CONNECTICUT RIVER BASIN 199

Deerfield River near West Deerfie'ld, Mass.

Location. Lat 42 032'09", long 72 039'14n , on right bank 0.4 mile downstream from South 

River/ l£ miles west of West Deerfield, Franklin County, and 1\ miles west of Deerfield.

Drainage area. 558 sq mi.

Records available. March 1904 to December 1905 (gage heights only), October 1940 to 

September 1955. Published as "at Deerfield" 1904-5.

Gage. Water-stage recorder. Altitude of gage is 155 ft (from topographic map). Prior 

 b Dec. 16, 1905, chain gage at site 1.5 miles downstream at different datum.

Average discharge. 15 years (1940-55), 1,298 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 18,600 cfs Aug. 19 (gage height, 9.11 ft); 

minimum daily, 65 cfs July 31. ,

1940-55: Maximum discharge, 48,500 cfs Dec. 31, 1948 (gage height, 15.43 ft); 

minimum daily, 46 cfs Aug. 3, 1947, Oct. 4, 1953.

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

regulated by Somerset and Harriman Reservoirs (see p. 232), and by several powerplants 

above station.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.6 

1.8 

2.1 

2.5

84

155

310

605

3.0 

4.0 

5.0 

6.0 

8.0

1,130

2,670

4,690

7,370

14,200

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24 

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

817

740

416 

810

675

800

523

310

238

164

452

312

462

694

1,070

2,440 588"

872

910

880

960

971 

566

334 

597

954

921

*1,100

1,030

1,230

889

24,125

778

-99.9

Nov.

902

1,050

10,800 

5,310

3,870

3,160

2,190

1,670

1,580

1,490

1,460

1,500

1,390

820

918

1,420

1,390

1,600

1,750

3,500

8,250

4,660 

3,010

2,650 

2,650

2,230

2,020

1,800

2,530

2,480

--------

80,050

2,668

+144

Dec.

2,050

1,920

1,660 

,680

,340

,500

* ,390

,500

1,840

1,660

1,600

1,510

1.290

1,826

5,790

2,710

2,140

3,860

4,390

2,760

2,050

1,900 

1,940

1,950 

1,780

1,580

1,750

1,660

2,430

2,380

1,930

65,760

2,121

-91.7

Jan.

1,560

1,820

1,900 

1,800

1,620

*1,700

1,370

1,820

1,760

1,520

1,430

1,470

1,650

1,500

1,600

1,050

1,500

1,400

1,550

1,450

1,400

1,300 

1,350

1,300 

1,300

1,300

1,150

1,200

1,200

680

1,550

44,650

1,440

-707

Feb.

1,250

1,250

1,150 

1,200

1,050

540

1,600

*1,250

1,300

1,350

3,000

1,640

988

1,190

1,500

1,400

1,310

1,360

1,160

481

1,050

1,270 

1,700

1,860 

1,520

1,500

1,340

1,670

-

--------

36,879

1,317

-455

Mar.

2,600

2,800

1,920 

1,410

1,620

1,510

1,470

1,430

1,450

1,640

3,540

3,940

3^220

2,130

2,090

3,490

*3,050

2,330

1,770

1,360

1,480

1,680 

2, 130

l',700

1,510

1,320

1,170

1,620

1,970

2,330

63,320

2,043

-48.2

Apr.

2,980

3,490

3,120 

2,650

3,220

3,870

4,350

3,300

2,620

3,010

5,120

4,470

3,610

3,390

4,980

5,320

3,850

2,890

3,050

*3,260

2,980

2,900 

2,600

£,360

5,OjO

6,050

5,366

4,000

3,410

2,400

________

109,640

3,655

+1,326

May

1,820

1,500

1,220 

1,400

1,370

1,560

1,380

851

1,210

964

1,050

965

1,050

854

506

622

772

612

626

612

529

230 

315

469 

*970

975

536

499

336

959

614

27,179

877

+37.3

June

778

648

907 

430

253

457

744

689

814

748

584

390

487

932

910

462

540

530

228

223

850

1.140 

931

801 

600

177

239

202

199

*256

17,149

572

-149

July

154

167

186 

335

216

249

174

211

198

100

136

104

144

90

94

186

230

378

626

758

739

764

?7T

186 

206

712

597

634

730

335

65_

9,975

322

-170

Aug.

334

617

216 

358

288

*126

67

174

181

191

484

417

3,590

4,490

2,670

1,620

1,520

4,390

10,700

3,250

1,460

1,230 

1,260

1,440 

1,060

1,150

720

428

691

992

1,070

47,184

1,522

+38.6

Sept.

1,020

1,100

662 

316

152

496

1,020

620

708

594

219

376

724

602

684

585

586

154

470

*1,030

634

794 

662

1,160 

562

546

730

958

955

1,130

20,249 6-75

-314

Adjusted for change in reservoir contents

Mean 

Cfsm 

In.

678 

1.22 

1.40

2,813 

5.04 

5.62

Calendar year 1954 : 

Water year 1954-55 :

2,030 

3.64 

4.19

733 

1.31 

1.51

862 

1.54 

1.61

1,994 

3.57 

4.12

4,980 

8.92 

9.96

914 

1.64 

1.89

Observed

Max 10,800 Mln 68 Mean 1,406 

Max 10,800 Mln 65 Mean 1,496

423

0.758 

0.85

144 

0.258 

0.30

1,561 

2.80 

3.22

360 

0.645 

0.72

Adjusted

Mean 1,451 Cfsm 2. 60 In. 35.29 

Mean 1,455 Cfsm 2.61 In. 35.39

* Discharge measurement made on this day.

1- Change in contents, equivalent in cubic feet per second, in Somerset and Harriman Hfservoirs.

Mote. Stage-discharge relation affected by ice Jan. 13 to Feb. 11, Feb. 23, Mar. 1.
200 CONNECTICUT RIVER BASIN

Connecticut River at Montague City, Mass.

Location.--Lat 42°34'48", long 72°34'30", on left bank 75 ft downstream from New York, 

New Haven and 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 1955. Prior to October 1929, published as 

"at Sunderland.". 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. 8, 1921, water-stage 

recorder used for low stages, chain gage otherwise; and Oct. 9, 1921, to Sept. 30, 

1929, 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.--51 years, 13,800 cfs (adjusted for storage since October 1923).

Extremes.--Maximum discharge during year, 81,400 cfs Apr. 16 (gage height, 28. 28 ft); 

minimum daily, 393 cfs July 31.

1904-55: Maximum discharge, 236,000 cfs Mar. 19, 1936 (gage height, 49.2 ft, from 

floodmarks), 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 or no gage-height record 

and those below 1,500 cfs, which are fair. Flow regulated by powerplants and by 

First Connecticut and Second Connecticut Lakes, Lake Francis since 19-'0, Comerford 

Station Pond since 1930 (see p. 232), and other reservoirs (combined csable capacity, 

about 27s- billion cubic feet).

Revisions (water years).--WSP 471: 1904-13 calendar years, 1914-17. WSP 741: 1930-32. 

WSP 781: 1928'[M) . WSP 891: Drainage area. WSP 1051: 1905, 1909-10, 1912-14, 

1920, 1922-23, 1925-26, 1928, drainage area at Sunderland. WSP 1301: 1905(M), 

1914-iy(M), 1930-31(M).

Rating table, water year 1954-55, except periods of Ice effect (gage height, 

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

3.9 

4.2 

4.5

345

525

735

5.0 

6.0 

7.0

1,170

2,260

3,620

9.0

13.0

18.0

7,110

17,800

35,700

24.0

28.0

61,300 

8O.OOO

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

9,960

1O, 2OO

6,290

9,280

15 , 1OO

18,500

18 .300

15,200

13 , 700

11,000

10,300

10,100

9,920

10,500

13,400

17,800

12,600

11,000

10,100

10,400

10, 200

9,520

6,510

4,180

5,770

7,640

*7,800

9,740

10,500

13 , 600

6,780

335,990

10,840

-136

Nov.

10,OOO

10,700

28,900

45,500

30,400

23,900

19,800

18,200

12,900

13,800

13,000

11,900

13,200

5,150

9,800

12,400

12,000

10,800

10,600

13,700

33,600

41,400

37,800

32,300

27,300

21,400

18,600

18,100

18,400

20,100

591,630

19,720

+231

Dec.

23,700

*2 1,600

18,400

18,100

8,800

1O,5OO

12,OOO

10,600

12,100

14,300

15,900

10,900

10,500

12,000

21,500

21,000

19,300

23,200

34,300

30,700

23,600

17,500

18 , 500

18,200

15,000

13,400

10,700

15,300

17,600

20,200

19,700

539,100

17,390

-948

Jan.

18,500

19,000

15*600

15,600

14,900

14,700

12 , 500

8,280

9,430

11,000

11,000

10,000

10,500

9,500

7,000

9,000

10,500

9,000

8,800

9,000

7,500

4,500

9,000

8,500

7,500

7,000

7,500

4,500

5,000

8,500

318,610

10,280

-1,859

Feb.

6.5OO

6,500

6,000

6,OOO

5,500

4,000

11,500

8,000

7,500

*7,500

9,500

1O.OOO

8,500

9,500

9,300

9,300

9,000

9,000

7,500

4,250

8,500

9,500

9,000

11,000

15,000

15,500

14,500

15,000

-

250,650

8,952

-1,047

Mar.

17,000

27,200

25,300

19,300

17,500

14,000

12,900

U,200

11,600

11,200

16,500

32,100

56.500

31,600

27,500

*29,900

55,800

29,700

24,800

20,400

18 , 700

18,000

18,500

16,900

16,100

14,800

15,400

11.100

12,700

12,700

14,000

616,500

19,890

-466

Apr.

21,600

32, 100

38,500

32,200

55,700

40,500

46 , 100

55 , 700

49 , 000

42 , 700

55 , 200

64,900

60 , 90O

54,600

59,500

78,500

79,200

71,800

67,500

*66,200

64,800

*59,200

50,600

44,500

44,800

54,500

55,600

49,100

45,900

59,000

*1,555S

51,790

+5,512

May

54,200

29, 100

26 , 900

22 , 500

24 , 400

25,800

23,8pO

25,000

21,OOO

20,900

22 , 100

21,000

17,800

15,500

12 , 700

11,000

9,990

1O,5OO

10,200

9,040

7,880

5,150

7,870

8,750

*9,050

10,800

12 , 200

12,200

4,970

10,400

12,600

489,260

15,780

+845

June

15,800

24,600

27 , 200

2O.OOO

15,800

15,000

11,800

9,760-

8,150

7,200

2,160

5,620

11,100

16 , 500

15,900

14,500

14,500

14, 100

4,950

7,190

7,100

10,800

11,400

11,700

10,500

7,O30

8,430

8,570

7,520

6,520

546,800

11,560

+255

July

7,450

4,330

2,250

4,200

5,950

5,100

6,000

4,690

1,610

790

4,900

5,950

5,770

5,740

5,670

477

810

4,590

4,230

3,470

4,130

4,170

*023

*474

5,080

5,400

5,170

4,520

4,720

858

a595

105,255

5,595

-578

Aug.

2,780

3,420

2,000

1,990

1,940

*601

581

1,010

2,460

2,980

6,OOO

9,720

16 , 800

59,400

55,500

18,800

17,600

20, 100

55,400

26,000

15,500

10,800

9,610

10,800

11,500

10,400

5,920

5,640

7,500

7,540

7,540

559,252

10,940

+65.0

Sept.

7,340

7,750

4,250

924

548

5,750

6,980

4,780

4,920

1,080

626

4,050

4,520

5,700

5,440

2,880

926

687

5,520

*4,700

5,780

5,080

5,420

4,680

1,650

4,220

4,190

5,150

4,840

5,510

115,611

5,854

-966

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

10,700 

1.56 

1.57

19,950 

2.54 

2.85

Calendar year 1954 : 

Water year 1954-55 :

16,440 

2.09 

2.41

8,419 

1.07 

1.25

7,904 

1.00 

1.05

19,420 

2.47 

2.85

55,100 

7.01 

7.82

16,650 

2.11 

2.44

Observed

Max 75,000 Mln 1,OOO Mean 17,860 

Max 79,200 Mln 595 Mean 15,550

11,790 

1.50 

1.67

5,018 

0.584 

0.44

11,010 

1.40 

1.61

2,888 

0.567 

0.41

Adjusted

Mean 17,940 Cfsm 2.28 In. 5O.96 

Mean 15,260 Cfsm 1.94 In. 26.55

Peak discharge (base, 61.OOP efs). Apr. 16 (11 to 12 p.m.) 81,400 cfs (28.28 ft).

* Discharge measurement made on this day.

t Change In contents In all reservoirs from First Connecticut and Second Connecticut Lakes to 

2 reservoirs In Deerfield River basin listed on p. 232, and change In contents In Moore Reservoir on 

Connecticut River, equivalent In cubic feet per second. t Expressed In thousands.

a No gage-height record; discharge estimated on basis of weather records, shape of normal recession graph, and records for Connecticut River at Turners Falls and Deerfield River near West Deerfield.

Note.--Stage-discharge relation affected by Ice Dec. 5-7, 22, 23, Jan. 11 to Mar. 1, Mar. 5.
CONNECTICUT RIVER BASIN 201

Mill River at Northampton, Mass.

Location.--Lat 42°19'05", long 72° 39'21", on right bank at Northampton, Hampshire County, 

3f miles upstream from mouth.

Drainage area.--52.3 sq mi.

Records available.--October 1938 to September 1955. October 1938 monthly discharge only, 

published in WSP 1301.

Gage. Water-stage recorder and concrete control. Altitude of gage is 140 ft (from topographic map).

Average discharge. 17 years, 96.8 cfs.

Extremes.--Maximum discharge during year, 6,300 efs Aug. 19 (gage height, 11.78 ft), from 

rating curve extended above 3,700 cfs on basis of computation of peak flow over dam; 

minimum, 6.6 cfs Aug. 9, 10; minimum daily, 6.8 cfs Aug. 9, 10.

1938-55: Maximum discharge, that of Aug. 19, 1955; minimum, 2.2 cfs 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 or no gage-height 

record, which are fair. Flow regulated by mill above station.

Revisions (water years}. WSP 921: 1940. WSP 1231: 1940-42(M), 1944-45(M), 1948(M), 

1949.

Rating tables, water year 1954-55, except periods of loe effect (gage

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

(Shifting-control method used Aug. 19)

Oct. 1 to Aug. 18 Aug. 19 to Sept. 30

1.4

1.5 

1,7 

1.9 

2.2

3.5 

4.0 

4.5

121

259

453

700

980

1.9 

2.2 

2.5 

3.0 

3.5

34

74

136

290

500

4.0

5.0 

7.0 

9.0

765

1,420

3,020

4,440

Discharge, In cubic feet per second, water year October 1954 to September 19"55

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

49

50

38

32

29

30

24

30

23

26

30

29

32

26

25

~66 154

45

38

34

32

30

28

27

26

26

30

36

59

113

1,299

41.9

0.794

0.91

Nov.

56

46

768

316

175

*139

121

110

102

84

72

71

66

63

65

59

59

76

80

435

405

237

159

154

218

191

169

156

338

269

5,259

175

3.31

3.70

Dee.

189

156

135

115

115

90

86

90

91

100

95

84

79

237

774

243

166

624

497

246

185

*140

130

135

110

90

100

102

128

202 

200

5,734

185

3.50

4.04

Jan.

146

199

208

142

105

110

96

80

80

80

71

65

65

50

58

62

55

48

44

38

32

34

37

40

*36

33

31

28

25

22

li

2,139

69.0

1.31

1.51

Feb.

19

18

T8

18

18

20

90

65

45

37

120

110

52

45

37

35

34

36

39

44

45

41

135

141

78

66

70

141

-

1,617

57.8

1.09

1.14

Mar.

394

241

121

*86

84

105

97

65

67

124

387

313

286

191

146

247

177

119

110

102

108

188

372

197

197

183

169

130

126

179 

226

5,537

179

3.39

3.90

Apr.

*292

273

215

254

333

365

337

212

169

189

197

177

166

172

200

200

165

144

149

149

144

154

162

135

694

707

548

300

416 

315

7,932

264

5.00

5.59

May

246

200

186

169

159

146

135

a 120

a 105

*93

86

77

71

66

62

58

55

58

47

44

36

38

41

41

104

184

84

60

55 

106

68

3,000

96.8

1.83

2.11

June

60

50

*42

36

35

37

31

30

31

28

27

46

63

41

31

27

23

20

16

22

23

27

31

3u

37

31

28

25

22 

16

966

32.2

0.610

0.68

July

*16

18

21

20

19

26

66

28

21

35

28

20

17

15

13

12

14

15

15

12

10

9.1

0 1

B.8

8.8

8.8

8.8

9.1

*8.8 

8.4

8.1

528.8

17.1

0.324

0.37

Aug.

*7.6

7.6

7.3

7.3

10

8.8

8.1

7.8

6.8

6.8

14

27

469

280

98

49

34

619

«3,870

706

328

261

215

173

134

109

96

85

79 

74

76

7,874.1

254

4.81

5.55

Sept.

87

90

98

102

102

107

105

90

90

88

81

98

90

79

74

74

68

54

52

55

68

54

43

128

124

55

*42

83

68 

48

2,397

79.9

1.51

1.69

Calendar year 1954: Max 918 Mln 8.8 Mean 109 cfsm Z.Q6 in. 28.03

Water year 1954-55: Max 3,870 Mln 6.8 Mean 121 Cfsm 2.29 In. 31.19

Peak discharge (base. 1,250 cfs) . Dec. 15 (12:30 to 1 a.m.) 1.720 cfs (5.66 ft): Dec. 18 (5 p.n 

1,640 cfs (5.54 ft); Apr. 25 (8:30 to 9 p.m.) 1,800 cfs (5.80 ft); Aug. 19 (7 a.m.) 6,300 cfs (11. 

ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for West 

Branch Westfleld River at Huntlngton.

Note. Stage-dlfharge relation affected by Ice Dec. 6-8, 21-26, Jan. 5-9, Jan. 11 to Feb. 23, 

Feb. 25, 26, Mar. b-9.
202 CONNECTICUT RIVER BASIN 

Ware River near Barre, Mass.

Location.--Lat 42°25'35", long 72°01<30", on left bank 1,100 ft downstream from bridge 

at Barre Falls, 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 1955.

Gage.--Water-stage recorder. Altitude of gage is 745 ft (from topographic map).

Average discharge. 9 years, 94.7 cfs.

Extremes.--Maximum discharge during year, 1,120 cfs Aug. 20 (gage height, 5.53 ft); minimum, 3.6 cfs Aug. 6, 7, 10, 11.

1946-55: Maximum discharge, 1,450 cfs Mar. 23, 1948 (gage height, 5.93 ft), from 

rating curve extended above 960 cfs by logarithmic plotting; minimum, 1.1 cfs Sept. 6, 

1953.

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

Some regulation by Long Pond and other small reservoirs.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

1.91

2.0

2.2

2.4

2.7

3.1

3.6

4.9

9.8

19

40

80

3.5 

4.0 

4.5 

5.0 

5.5

145

286

485

755

1,100

Discharge, Ln cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota:

Mean

Cfsm

In.

Oct.

63 

63

72

75

69

63

58

*54

51

51

54

54

52

48

44

74

98

89

73

60

52

47

42

38

36

35

36

41

46

92

1,808

58.3

1.06

1.22

Nov.

89 

78

17T

353

346

270

207

163

*137

116

102

96

86

81

79

80

102

100

92

136

236

276

239

192

179

176

161

152

182

242

4,919

164

2.98

3.33

Dec.

236

198

161

133

122

105

100

95

96

115

116

105

98

98

248

527

280

239

320

324

254

210

233

201

175

150

137

129

171

218

239

5,633

182

3.31

3.81

Jan.

212 

195

207

195

163

154

131

130

120

105

90

85

80

73

68

63

59

54

52

48

45

43

40

*41

38

38

38

35

30

-

26

2,686

86.6

1.57

1.82

Feb.

25 

24

23

23

24

25

110

120

100

70

80

155

130

80

65

54

57

60

60

62

65

65

*105

180

139

102

89

99

-

2,191

78.2

1.42

1.48

Mar.

115 

161

135

100

97

99

115

102

90

89

137

254

239

192

152

150

176

150

120

104

98

99

143

156

163

163

152

*128

112

111

122

4,224

136

2.47

2.86

Apr.

131 

139

141

143

156

161

179

179

150

129

120

115

108

106

111

120

118

108

104

105

100

100

110

110

154

236

313

310

280

270

4,606

154

2.80

3.11

May

233 

192

161

137

122

*118

115

106

100

93

85

79

74

80

79

72

67

61

56

51

48

45

40

35

35

48

52

48

43

46

46

2,567

82.8

1.51

1.74

June

54

51

46

39

42

38

35

34

32

29

27

38

56

55

46

37

32

27

23

25

27

64

*83

80

105

96

74

57

48

38

1,438

47.9

0.871

0.97

July

30 

27

363 '5

23

30

49

51

33

31

25

21

16

*13

11

13

25

21,

19

14

11

9.0

7.8

7.3

7.3

7.0

6.1

5.9

5.9

5.1

4.7

613.1

19.8

0.360

C.41

Aug.

4.6 

4.4

4.1

3.8

3.8

3.6

378

5.1

4.4

3.7

3.6

6.0

44

129

105

67

46

78

*515

1.070

716

431

515

437

313

195

143

129

111

92

76

5,252.9

169

3.07

3.55

Sept.

70 

*62

54

48

43

40

36

32

29

27

27

28

26

23

22

21

20

19

18

18

17

16

15

28

66

60

42

39

43

36

1,025

34.2

0.622

0.69

Calendar year 1954 : Max 770 Min 5.3 Mean 117 Cfsm 2.13 In. 28.75

Water year 1954-55 : Max 1,070 Min 3.6 Mean 101 Cfsm 1.84 In. 24.99

Discharge measurement made on this day. 

Mote. Stage-discharge relation affected by Lee Dec. 6-8, 25, 26, Jan. 8 to Feb. 16, Feb. 19, 20, 

23, 24, Mar. 5, 9.
CONNECTICUT RIVER BASIN 

Ware River at Coldbrook, Mass.

203

Location. Lat 42°23'30", long 72°03 I 40", on right bank above diversion dam at Ware River 

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 1955.

Gage.--Venturi meters and water-stage recorder. Datum of gage is 5.65 ft below mean sea 

Tevel, 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.--27 years, 166 cfs.

Extremes.--Maximum daily discharge during year, 1,750 cfs Aug. 20; minimum daily, 9.9 cfs 

Aug. 6.

1928-55: Maximum discharge, 14,000 cfs Sept. 21, 1938 (gage height, 664.28 ft), 

by computation of flow over dam; minimum daily, 4.7 cfs Sept. 6, 1953.

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. Diversion Aug. 18-25, 1955, for flood-control purposes.

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). WSP 781: Drainage area. WSP 1031: 1944.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Of sm

In.

Oct.

120

122

130

131

130

117

113

104

96

95

109

106

106

92

91

186

197

180

136

113

98

38

50

51

78

87

82

63

98

131

173

3,423

110

1.14

1.32

Nov.

163

150

479

668

592

441

329

266

224

191

171

159

147

140

133

132

148

150

158

350

480

488

403

335

316

295

272

268

369 

418

8,835

294

3.04

3.39

Dec.

380

311

241

224

202

169

202

204

202

173

178

169

164

228

488

532

416

454

613

546

364

343

330

341

259

224

229

235

347 

429

433

9,630

311

3.21

3.70

Jan.

373

367

375

326

266

264

205

206

193

171

170

147

141

132

128

123

145

106

106

95

69

94

77

64

79

74

70

37

60 

53

50

4,766

154

1.59

1.'83

Feb.

47

48

46

46

45

62

217

200

150

136

192

276

197

140

129

117

114

116

117

120

124

124

237

317

225

168

159

185

-

4,054

145

1.50

1.56

Mar.

266

323

246

172

179

191

187

168

154

174

354

483

408

328

267

302

306

253

209

184

165

203

272

265

273

271

238

209

195 

201

222

7,668

247

2.55

2.95

Apr.

240

252

255

259

268

285

315

290

244

221

211

205

197

191

204

211

204

188

183

185

177

178

200

195

343

486

663

588

531 

479

8,449

282

2.91

3.25

May

399

326

267

233

215

207

195

184

175

195

221

172

151

168

154

140

129

117

110

99

91

83

78

70

79

100

93

81

77 

90

91

4,790

155

1.60

1.84

June

120

104

96

83

82

74

69

64

60

53

SO

85

103

93

78

61

52

43

39

41

66

125

132

149

178

153

114

87

70 

59

2,583

86.1

0.889

0.99

July

45

50

64

55

44

66

98

84

67

54

47

39

32

28

25

35

53

44

36

29

25

22

19

18

18

18

17

17

16 

15

13

1,193

38.5

0.398

0.46

Aug.

13

13

11

11

11

11~~ 9.9

12

12

11

10

17

56

309

222

136

88

394

1,630

1.750

1,170

773

795

662

458

316

256

226

197

154

9,902.9

319

5.30

3.80

Sept.

147

145

124

97

88

95

74

92

61

57

56

59

55

49

47

45

43

41

36

37

38

35

34

70

147

"85 150

90

93

80

2,270

75.7

0.782

0.87

Calendar year 1954; Max 1,21O Mln 12 Mean 2O8 Cfsm 2.15 m. 29.22

Water year 1954-55: Max 1,75O Mln 9.9 Mean 185 Cfsm 1.91 In. 25.96
204 CONNECTICUT RIVER BASIN

Ware River at Gibbs Crossing, Mass.

Location.--Lat 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 1955.

Gage.--Water-stage recorder. Datum of gage is 379.79 ft above mean sea level, datum of 

TT929. Prior to Mar. 1, 1930, at site half a mile downstream at different datum.

Average discharge. 43 years, 322 cfs (adjusted for diversion).

Extremes.--Maximum discharge during year, 12,200 cfs Aug. 19 (gage height, 12.83 ft), 

from rating curve extended above 4,600 ofs on basis of contracted-opening determination at 12.83 ft and slope-area determination at 18.2 ft; minimum, 20 cfs Aug. 3, 5, 

11; minimum daily, 21 cfs July 31, Aug. 4-6.

1912-55: Maximum discharge, 22,700 cfs Sept. 21, 1938 (gage height, 18.2 ft, from 

floodmarks), from rating curve exteided above 4,600 cfs as described above; 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 or no gage-height record, 

which are fair. Flow regulated by mills above station. Diversion at times since 

March 1931 from 97 sq mi in Ware River basin for supply of Boston metropolitan 

district.

Revisions (water years). WSP 661: Drainage area. WSP 1031: 1944. WSP 1301: 1914(M).

Rating tables, water year 1954-55, except periods of ice effect (gape 

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

(Backwater from aquatic vegetation Aug. 6-17)

Oct. 1 to Aug. 19 Aug. 2O to Sept. 30

3.0

24

34

65

110

215

450

3.5 

4.0 

5.0 

7.0 

9.0 

11.0

750

1,140

2,030

3,970

6,370

9,210

59

99

196

3.0

3.5 

4.0 1,140

Note. Same as preceding 

table above 4.O ft.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

(t)

Oct.

*231

155

219

268 

248

227

268

209

82

164

263

206

179

193

167

224

350

368

3OO

251

209

183

100

71

234

127

166 

176

223

201

322

6,584

212

0

Nov.

377

309

784

1.430 

1,160

918

704

*595

490

423

380

358

272

296

370

289

289

307

325 

584

1,060

1,030

828

692

661

643

559 

541

737

872

18,283

609

0

Dec.

784

677

555

410 

428

424

330

325

320

385

369

355

389

367

921

970

820

788

*1.290 

1,160

910

637

612

622

570

460

488 

447

642

828

895

19,178

619

0

Jan.

771

730

820

720 

588

564

534

400

385

427

310

300

293

265

140

225

305

*230

200 

185

175

105

148

216

152

155

145 

150

88

75

197

9,998

323

0

Feb.

Ill

105

110

115 

54

91

691

538

370

282

385

560

470

370

263

225

246

256

209 

243

299

256

402

690

522

371

304 

*374

_

8,812

315

0

Mar.

464

712

571

420 

509

355

425

360

328

370

664

978

880

724

567

557

668

556

428 

375

410

400

697

679

651

586

571 

504

426

a430

a490

16,553

534

0

Apr.

a520

a550

a540

a540 

a55O

*a570

658

607

485

466

468

419

406

408

415

599

412

454

595 

591

377

381

"535 548

652

872

1.240 

1,150

1,060

932

16,978

566

O

Hay

792

692

580

509

460

481

407

412

*442

387

379

569

352

198

264

532

288

258

210 

215

104

155

260

148

159

234

250 

108

137

175

298

10,015

523

0

June

240

178

188

165 

168

*199

183

175

161

131

99

119

241

221

238

170

158

128

65 

171

113

501

541

290

244

295

544 

257

214

120

5,877

196

0

July

169

80

76

140 

*186

99

215

207

164

122

230

80

103

55

66

48

48

163

97 

50

77

*60

26

24

83

57

53 

56

47

24

21

2,909

95.8

0

Aug.

78

57

22

21 

2T

21

28

75

27

61

51

87

166

565

555

370

199

1,550

*8.880 

*5,060

1,930

1,000

1,260

1,160

812

842

685 

625

553

436

407

27,582

890

144

Sept.

398

283

239

200 

231

356

240

216

207

59

124

291

131

130

148

150

58

58

212 

122

117

105

122

78

268

378

269 

251

*248

217

5,886

196

0

Adjusted for diversion

Mean 

Cfsra 

In.

212 

1.07 

1.23

60S 

3.0t 

3.41

Calendar year 1954: 

Water year 1954-55:

619 

3.11 

3.58

323 

1.62 

1.87

315 

1.58 

1.65

534 

2.68 

3.09

566 

2.84 

3.17

323 

1.62 

1.87

Observed

Max 2,100 Min 18 Mean 354 

Max 8,880 Mln 21 Mean 4O7

196 

0.985 

1.10

93.8 

C.471 

0.54

1,034 

5.20 

5.99

196 

0.985 

1.10

Adjusted

Mean 401 Cfsm 2.02 In. 27.35 

Mean 419 Cfsrm 2.11 In. 28.61

Peak discharge (base. 1.30O cfs). Nov. 4 (8 to 9 a.m.) 1,620 efs (4.56 ft); T°c. 19 (12 m. to 

1 p.m.) 1.340 cfs (4.23 ft); Apr. 27 (3 to 7 p.m.) 1,330 cfs (4.22 ft); Aug. 19 (10 a.m.) 12,2OO cfs 

(12.83 ft).

* Discharge measurement made on this day.

t Diversion, equivalent in cubic feet per second, from 97 sq mi in Ware River basin for supply of 

Boston metropolitan district, furnished by Metropolitan District Commission.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records, 

and records for Ware River at Cold Brook and East Branch Swift River near Hardwick.

Note.--Stage-discharge relation affected by ice Dec. 7-9, 25, 26, Jan. 8, 9, 11, 12, 14-21, 27-3O, 

Feb. 2-5, 12-14, 16, Mar. 8.
CONNECTICUT RIVER BASIN 205

Hop Brook near New Salem, Mass.

Location. Lat 42°28'42", long 72°20'05", on right bank 1.5 miles upstream from mouth 

and lj miles south of New Salem, Franklin County.

Drainage area. 3.39 sq mi.

Records available. October 1947 to September 1955. October 1947 monthly discharge only, 

published in WSP 1301.

Gage .--Water-stage recorder and concrete control. Altitude of gage is 725 ft (from topographic map).

Average discharge.--8 years, 6.37 cfs.

Extremes.--Maximum discharge during year, 275 cfs Aug. 19 (gage height, 3.13 ft), from 

rating curve extended above 78 cfs by logarithmic plotting; minimum, 0.004 cfs Aug. 3, 

9, 10.

1947-55: Maximum discharge, that of Aug. 19, 1955; minimum, that of Aug. 3, 9, 10, 

1955.

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

Rating tables, water year 1954-55, except periods of loe effect (gage 

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

Oct. I to Feb. 23 Feb. 24 to Sept. 30

1.6 

1.8 

2.0

9.0

17.1

29

0.32 

.4 

.5 

.6 

.7 

.8

1.0

0.01

.03

.12

.30

.58

1.02

1.2 

1.4

Discharge, In cubic feet per second, water year October 1954 to September 1S55

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

1.8

3.9

3.4

2.35

1.85

1.95

1.7

1.6

1.6

2.0

2.25

1.8

1.6

1^45

1.5

13.1 s'.B

2.9

2.5

2.4

2.25

2.1

1.95

1.85

1.7

 1.7

2.45

2.35

7.2

6.4

4.8

90.20

2.91

0.858

0.99

Nov.

3.5

3.1

31

12.4

8.0

6.5

5.8

5.6

5.1

4.7

4.5

4.5

4.1

4.1

3.9

3.7

3.7

4.3

4.1

30

24

14.0

10.0

9.0

10.0

8.8

8.0

8.2

21

13.1

278.7

9.29

2.74

3.06

Dec.

 10.0

8.5

7.8

7.0

6.5

5.4

5.2

5.1

5.8

7.0

6.1

5.6

5.1

9.3

17.3

9.0

7.2

28

19.1

11.4

9.4

8.8

9.0

7.8

6.5

6.5

6.1

6.5

8.0

13 . 8

10.1

278.9

9.00

2.65

3.06

Jan.

7.8

10J.

9.7

*8.0

6.8

7.2

6.3

5.3

4.9

4.8

4.0

4.0

3.9

3.4

3.4

3.5

3.3

2.8

2.7

2.5

2.2

2.2

2.3

2.4

2.3

2.2

2.1

1.7

1.6

1.5

1.4

126.9

4.09

1.21

1.39

Feb.

1.4

1.3

1.2

1.2

1.2

1.7

9.5

*4.0

3.7

3.5

19

12

5.2

3.7

3.6

3.3

3.4

3.4

3.5

4.4

4.4

3.9

27

11

6.1

5.4

9.2

14'-

171.2

6.11

1.80

1.88

Mar.

25

12.4

7.8

7.6

7.5

10.4

6.8

5.4

574

12.7

28

14.6

14.2

*9.0

8.5

16.6

10.4

7.8

6.8

6.1

5.9

8.9

12.0

9.3

10.4

10.5

8.7

6.8

7.0

13.3

13 9

329.7

10.6

3.13

3.62

Apr.

13.7

12.6

10.8

11.4

10.4

12.8

12.4

9.0

8.0

8.2

8.8

7.8

7.5

7.8

8.8

8.8

7.5

*6.8

7.8

7.2

6.5

7.2

8.6

7.1

38

35

33

19.3

24

17.2

383.4

12.8

3.78

4.21

May

13.4

11.4

10.4

9.4

8.8

8.0

7.8

7.8

7.0

6.5

5.7

5.4

5.3

6.8

5.0

4.2

4.2

3.8

3.2

3.0

2.8

2.45

*2.3

2735

6.8

6.2

3.5

2.8

3.1

6.4

182 . 30

5.88

1.73

2.00

June

5.9

3.6

2.8

3.0

3.0

2.0

1.9

2.0

 1.9

1.5

1.5

7.4

4.3

*2.5

1.75

1.45

1.65

1.02

.70

.74

1.4

2.6

1.45

4.6

3.4

1.65

1.18

1.24

.84

 58

69.55

2.32

0.684

0.76

July

0.45

.65

1.12

.44

.32

.95

.97

.46

.25

.21

.16

.10

.08

.08

.06

1.8

792

.27

.13

.07

.04

.02

.02

.07

.06

.04

.02

.06

.07

.02

.01

9.92

0.320

0.094

0.11

Aug.

0.01

.01 !oi

*.01

.01

.01

.01

.01

.01

.01

.10

4.8

45

13.7

3.2

1.75

1.18

31

163 "35"

17.4

12.6

12.7

8.8

6.8

5.7

6.4

4.7

3.7 

3.7

4.4

3"35.73

12.4

3.66

4.23

Sept.

3.5

2.9

2.45

2.2

2.8

2.8

1.9

1.5

1.35

1.35

8.2

4.9

2.35

*2.0

1.9

1.6

1.5

1.4

1.35

1.5

1.18

.92

.92

13.5'

5.3

2.7

2.05

8.0

3.6 

3.0

90.62

3.02

0.891

0.99

Calendar year 1954: Max 43 Mln 0.12 Mean 6.27 Cfsm 1.85 In. 25.13

Water year 1954-55: Max 163 Mln 0.01 Mean 6.57 Cfsm 1.94 In. 26.30

Peak discharge (base, 72 cfs). Apr. 25 (6:30 to 7 p.m.) 87 cfs (2.36 ft); Aug. 13 (6:30 p.m.)

148 cfs (2.69 ft); Aug. 19 (1:30 a.m.) 275 cfs (3.13 ft).

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 4, 6-8, 22, 23, 26, Jan. 5, 7-14, Jan. 17 to 

Feb. 8, Feb. 11, 12, 23, 24, 28, Mar. 1, 8, 9, 18-20, 28, 29.
206 CONNECTICUT RIVER BASIN

East Branch Swift River near Hardwick, Mass.

Location. Lab 42°23'36", long 72°14'21", on left bank 1-00 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 1955. Published as "near Dana" January 

1937 to September 1939.

Gage. Water-stage recorder. Concrete spillway since Mar. 12, 1940. Datum of gage is 

504.70 ft above mean sea level, datum of 1929.

Average discharge. 18 years, 70.7 cfs.

Extremes.--Maximum discharge during year, 1,650 cfs Aug. 19 (gage height, 21.865 ft), 

from rating curve extended above 500 cfs on basis of computation of flow over dam at 

gage height 22.49 ft; minimum, 0.1 cfs Aug. 7.

1937-55: 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, Aug. 26-28, 1949, Aug. 31 to Sept. 6, Sept. 9-12, 1953.

Remarks.--Records good.

Rating table water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

19.1

19.15

19.Z

19.25

19.3

19.35

19.4

0

.4 

1.6 

3-8 

7.2

12

18

19.5

19.6

20.0

20.5

21.0

21.5

36

67

239

540

9OO

1,320

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Of sm

In.

Oct.

32

34

54

56

50

42

35

31

71

34

38

39

40

38

35

74

96

84

67 

56

46

39

34

34

33

33

34

36

47

75

86

1,463

47.2

1.08

1.25

Nov.

80

67

188

'239 350

159

121

99

88

75

69

71

64

62

61

56

57

64

62 

131

250

234

170

134

128

119

107

107

159

210

3,781

126

2.88

3.22

Dec.

170

134

109

90

84

76

69

67

65

84

84

76

69

75

172

183

140

147

327 236"

188

144

119

117

109

94

90

90

126

179

190

3,937

127

2.91

3.35

Jan.

161

150

168

TSS

126

119

115

101

86

80

71

64

61

54

50

48

48

46

48 

50

39

36

36

36

36

35

34

32

30

27

25

2,165

69.8

1.60

1.84

Feb.

25

24

23

23

22

25

132

138

86

64

75

2OO

150

90

67

54

57

54

53 

54

57

59

116

219

159

113

92

97

_

------

2,328

83.1

1.90

1.98

Mar.

130

210

168

126

97

99

101

90

82

80

138

244" 288

190

148

148

177

150

117 

101

94

107

146

140

136

144

138

117

101

103

121

4,231

136

3.11

3.60

Apr.

136

146

150

140

134

140

159

148

123

107

103

99

96

96

105

115

109

101

99 

99

96

97

105

107

150

261

392

304

255

224

4,396

147

3.36

3.74

May

186

148

123

107

99

88

78

73

71

67

62

57

54

57

54

51

45

39

36 

34

32

28

28

28

30

46

46

38

34

42

45

1,926

62.1

1.42

1.64

. June

56

65

56

40

38

32

28

25

23

20

20

51

92

78

57

42

34

26

20 

21

25

48

50

46

57

54

39

33

30

24

1,230

41.0

0.938

1.05

July

19

23

34

28

23

23

31

33

26

20

16

11

9.8

8.0

6.8

9.9

18

16

13 

9.8

7.6

6.0

5.3

5.0

4.1

4.4

3.8

3,8

3,0

2.1

JLZ

425.1

13.7

0.314

0.36

Aug.

1.6

1.4

.8

.6

.6

.5

.4

.6

.4

J.3.

.3

2.4

32

138

132

75

39

74

1.100 

9S6

394

210

164

144

113

84

71

65

54

46

46

3,946.8

127

2.91

3.36

Sept.

44

38

33

29

28

30

26

22

19

16

18

21

20

19

18

17

15

15

15 

16

13

12

11

25

56_

51

39

45

48

44

803

26.8

0.613

0.68

Calendar year 1954; Max 587 Min 2 -8 Mean 81.2 Cfsm 1.86 In. 25:21

Water year 1954-55: Max 1,100 Min °- 2 Mean 83.9 Cfsm 1.92 In. 26. O7

Peak discharge (base. 550 cfs). Nov. 4 (5:30 to 6:3O a.m.) 374 cfs (20.245 ft); Apr. 27 

(1 to 2:30 p.m.) 410 cfs (20.30 ft); Aug. 19 (5 to 6:30 p.m.) 1.65O cfs (21.865 ft).
CONNECTICUT RIVER BASIN 

Swift River at West Ware, Mass.

207

Location. Lat 42°16'04", long 72°19'59", on left bank-at West Ware, Hampshire County, 

1.4 miles downstream from Quabbin Reservoir and 3| miles east of Belchertown.

Drainage area. 188 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.

Hecoras available.--July 1910 to September 1912 (twice-daily gage heights and corresponding, 

discharges), October 1912 to September 1955.

Gage. Water-stage recorder. Datum of gage is 365.18 ft above mean sea level, datum of 

1929. Prior to Aug. 25, 1912, chain gage at site 400 ft upstream at same datum.

Average discharge. 43 years (1912-55), 306 cfs (adjusted for storage and diversions).

Extremes. Maximum discharge during year, 903 cfs Aug. 19 (gage height, 5.6f ft); minimum daily, 34 cfs Nov. 11, Jan. 1, Feb. 22, Apr. 19.

1910-55: Maximum discharge, 7,590 cfs Mar. 19, 1936 (gage height, 15.00 ft); minimum, 2.5 cfs Sept. 20, 1940; minimum daily, 15 cfs Sept. 20, 1940.

Remarks. - -Records excellent except those for period of no gage-height recorc' which are 

good. Plow regulated since August 1939 by Quabbin Reservoir (see p. 232 ). Diversion 

from Ware River to Quabbin Reservoir since 1940 and from Quabbin Reservoir to 

Wachusett Reservoir since 1941 and to Chicopee Valley Aquaduct since 1950.

Revisions (water years).--WSP 401: Drainage area. WSP 451: 1916. WSP 871: 1919. 

WSP 1031:1944 (changes in reservoir contents and adjusted figures only). WSP 1301:

1925(M).

Rating table, water year 1954-55 (gage height. In feet, and discharge, 

In cubic feet per second)

1.9

2.0 

2.2 

2.5

3.0 

4.0 

5.0

183

399

670

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

102

58

44

110

102

102

102

102

58

44

112

36

1^5

123

115

58

45

110

102

102

102

112

101

124

158

116

115

103

104

59

45

2,871

92.6

+3.59

Nov.

Ill

102

110

105

103

58

44

112 TOT *102

34

ITS

58

46

110

102

89

85

85

57

47

96

87

87

38

98

52

47

99

88

2,463

82.1

+417

Dec.

101

105

103

57

42

105

102

104

104

104

57

43

111

ToTT

107

106

104

64

*47

111

10E

102

102

105

35

44

111

102

104

106

104

2,800

90.3

+333

Jan.

34

45

111

103

103

104

104

59

45

115

101

102

103

104

57

45

112

103

103

102

100

*55

43

111

101

97

103

103

56

41

110

2,673

86.2

+89.7

Feb.

100

100

102

102

56

44

115

100

100

100

106

60

43

109

105

102

103

102

59

44

110

34

1T7

TS4

105

57

44

109

.

2,428

86.7

+310

Mar.

107

106

103

*106

60

47

114

104

105

108

109

62

47

114

104

108

106

106

62

4j>

114

114

110

108

107

64

49

116

107

107

108

2,928

94.5

+513

Apr.

*106

61

48

118

TC6

107

106

106

60

47

114

104

103

104

103

59

46

112

34

1T3

102

103

57

46

118

106

107

105

109

60

2,670

89.0

+561

May

48

112

TC4

106

105

105

59

47

111

104

104

104

104

60

46

112

104

103

105

104

59

44.

1TO

102

105

104

103

59

45

45

111

2,734

88.2

+ 191

June

104

102

*106

58

44

110 TOT

102

102

103

58

48

98

86

88

87

88

53

44

108

103

104

103

105

59

45

110

103

103

100

2,625

87.5

+133

July

*104

99

130

133

157

105

105

104

59

46

115

102

104

105

104

98

*125

137

105

104

113

117

94

124

137

104

102

103

114

102

127

3,552

108

-125

Aug.

145

128

127

128

127

106

127

147

127

128

130

116

79

48

113

103

a!03

a!75

a650

alSO"

a70

al20

a!15

allO

allO

a80

a68

50

114

109

110

4,025

150

+874

Sept.

108

109

63

48

47

117

TOT

105

106

62

47

116

106

105

106

106

61

46

1TF

106

107

107

107

65

49

*116

105

107

104

105

2,759

92.0

-14.0

Adjusted for diversion and change In reservoir contents

Mean 

Cfsm 

In.

96.2 

0.512 

0.59

499 

2.6E 

2.96

Calendar year 1954: 

Water year 1954-55:

423 

2.25 

2.60

176 

0.936 

1.08

397 

2.11 

2.20

607 

3.23 

3.72

650 

3.46 

3.86

279 

1.48 

1.71

Observed

Max 143 Hln 33 Mean 91.0 

Max 630 Hln 34 Mean 94.0

220 

1.17 

1.31

t-17.2 

t-0.091 

t-0.11

1,003 

5.34 

6.15

78.0 

0.415 

0.46

Adjusted

Mean 328 Cfsm 1.74 In. 23.74 

Mean 368 Cfsm 1.96 In. 26.53

* Discharge measurement made 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.

* Negative figures Indicate that evaporation and seepage from reservoir exceeded Inflow, 

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

typical regulation pattern, and records for Hop Brook near New Salem.
208 CONNECTICUT RIVER BASIN

Quaboag River at West Brimfield, Mass.

Location.--Lat 42°10'31", long 72°15'46", on left bank 15 ft upstream from site of 

former 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 1909 to August 1912 (twice-daily gage heights and corresponding 

discharges), September 1912 to September 1955.

Gage. Water-stage recorder. Concrete control since June 15, 1937. Datuir of gage is 

577.36 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. 43 years (1912-55), 243 cfs.

Extremes. Maximum discharge during year, 12,800 cfs Aug. 19 (gage height, 14.79 ft, 

from floodmark), from rating curve extended above 2,700 cfs on basis of slope-area 

determinations at gage heights 11.8 and 14.79 ft; minimum daily, 32 cfs Aug. 6.

1909-55: Maximum discharge, that of Aug. 19, 1955; 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 caused by mill above 

station; regulation much greater prior to 1938.

Revisions (water years).--WSP 451: 1916. WSP 711: Drainage area. WSP 1301: 1918(M).

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

2.5 

2.7 

3.0 

3.5

24

55

125

321

4.0 

5.0 

8.0 

12.0

585

1,280

4,030

8,730

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

321

298

288

265

252

223

215

204

196

192

185

174

170

160

244

240

223

215 

208

192

174

170

156

156

153

150

147

ra

223 

235

6,501

210

1.39

1.60

Nov.

227

223

508

580

585

585

568

*541

509

470

400

350

300

310

310

290

290

300

305 

40O

520

550

560

550

540

530

520

470

500

520

13,311

444

2.94

3.28

Dec.

530

520

450

400

360

350

330

325

"550" 320

350

350

340

330

6OO

620

620

640

740 

820

840

780

730

690

627

580

541

514

536

621 

633

16,417

530

3.51

4.04

Jan.

627

645

645

633

591

585

514

325

470

460

430

390

355

230

220

210

200

*185

180 

175

170

175

170

170

170

160

120

80

155

130

115

9,680

312

2.07

2.38

Feb.

115

105 1-02

105

110

115

3OO

300

290

280

270

310

230

330

280

255

252

244

244

252

248

235

307

346

326

316

302

*302

______

6,871

245

1.62

1.69

Calendar year 1954 : Max 924 Mln 41

Mar.

352

372

367

388

362

362

346

300

35T

372

472

509

525

514

504

530

477

509

482 

461

445

488

591

591

603

615

574

456

541

525

482

14,446

466

3.09

3.56

Apr.

456

429

429

*456

445

445

445

403

403

393

372

362

346

326

316

302

298

279

270 

265

252

270

288

279

424

472

530

541

633

65T

11,750

392

2.60

2.89

May

580

541

498

456

445

466

424

408

*372

346

321

298

279

265

244

227

208

196

178 

170

160

153

147

134

131

137

134

125

107

109

120

8,379

270

1.79

2.06

June

140

125

120

112

109

*103

96

93

93

89

82

106

117

109

103

96

91

84

80 

8?

80

98

98

103

125

112

103

98

96

91

3,034

101

0.669

0.75

July

86

91

S8

86

*82

89

TT9~ 120

96

89

88

80

75

71

69

97

112

93

77 

73

69

67

65

63

61

55

50

46

41

46 

45

2,3£7

77.0

0.510

0.59

Aug.

41

38

38

35

35

32

IT

65

48

45

*46

84

338

435

352

302

274

1,220

*7,590 

6,370

5,360

4,270

3,640

3,020

*2,500

2,090

1,730

1,440

1,220

1,040 

910

44,650

1,440

9.54

11.00

Sept.

794

69T

609

546

482

456

408

357

321

288

261

248

219

204

185

167

160

147

144 

147

140

134

T8~0~ 128

231

219

208

223

*223

215

8,741

291

1.93

2.15

Mean 311 Cfsm 2.06 In. 27.97

Water year 1954-55 : Max 7,590 Mln 32 Mean 40O Cfsm 2.65 In. 35.99

Peak discharge (base. 840 efs).--Dec. 21 (time unknown) 854 cfs (4.42 ft); Aug. 19 (8:30 a.m.) 

12,800 cfs (14779 ft).

* Discharge measurement made on this day.

Note. Ho gage-height record Nov. 10 to Dec. 22; discharge estimated on basis of weather records, 

recorded range In stage, and records for Qulnebaug River at Westvllle and Ware River at Coldbroolc. 

Stage-discharge relation affected by Ice Dec. 23, 26, Jan. 8 to Feb. 16, Mar. 8.
CONNECTICUT RIVER BASIN 209

Chicopee River at Indian Orchard, Mass.

Location. Lat 42°09i38", long 7C°30'52", on left bank 1,000 ft downstream from West 

Street Bridge at Indian Orchard, Hampden County, and 1.1 miles upstream from Puller 

Brook.

Drainage area. 688 sq mi.

Records available.--August 1928 to September 1955. Published as "at Bircham Bend" prior 

to November 1938.

Gage. Water-stage recorder. Altitude of gage is 125 ft (from topographic mep). Prior 

to Nov. 1, 1938, at site if miles downstream at different datum.

Average discharge.--27 years, 1,102 cfs (adjusted to present drainage area arid for 

storage and diversions ).

Extremes. Maximum discharge during year, 40,500 cfs Aug. 19 (gage height, 22.14 ft), 

from rating curve extended above 22,000 cfs on basis of computation of peek flow over 

dam; minimum daily, 47 cfs Aug. 7.

1928-55: 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 backwater from 

aquatic vegetation, which are good. Diversion since 1941 from 186 sq mi in Swift 

River basin and at times 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 Springfield and, prior to 1952, for Chicopee. Plow regulated by powerplants above station, by Quabbin Reservoir on Swift River since 1939 (see p. 232 ), 

and by smaller reservoirs.

Revisions (water years) . WSF 711: Drainage area. WSP 1231: 1934.

Rating tables, water year 1954-55, except periods of Ice effect or backwater 

from aquatic vegetation (gage height, in feet, and discharge, in cubic 

feet per second)

Oct.

3.4 39

3.6 61

4.0 129

4.5 266

5.0 475

5.5 760

Discharge, In

1 to Aug. 19

6.0

8.0

10.0

12.0

16.0

20.0

1,130

3,050

5,550

9,240

19,900

32.9OO

cubic feet per secc

Aug. 20-31

6.5 1,800

7.0 2,250

9.0 4,580

12.0 9,710

17.0 23,000

Sept. 1-30

194

309

570

900

1,330

1,810

Day

1

2

3

4

5

6

7

8

9

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.

*988

890

496

784

870

828

658

880

571

488

542

662

727

676

592

634

786

900

874 

801

728

819

486

381

568

638

501

626

702

665

812

21,573

696

+6.25

Nov.

922

864

1,300

2,690

2,480

2,060

1,710

1,520

1,430

1,330

1,170

1,090

955

904

820

919

900

*910

878 

1,130

2,030

2,120

1,910

1,660

1,640

1,610

1,520

1,350

1,660

2,010

43,492

1,450

+420

Dec.

1,840

1,680

1,500

1,270

1,100

1,270

1,060

972

996

1,070

1,040

894

1,090

1,080

1,940

2,220

1,970

1,860

2,790

2,710

*2,370

1,990

1,650

1,700

1,610

1,390

1,460

1,380

1,460

1,960

2,150

49,472

1,596

+ 336

Jan.

1,910

1,840

2,070

1 910

1J710

1,580

1,640

1,280

1,150

1,250

1,200

1,080

1,050

1,000

668

588

854

808

829

710

674

326

485

*666

685

675

518

524

250

234

5W

30,746

992

+92.0

Feb.

530

492

b380

b410

246

96

1,240

1,530

1,060

955

906

1,440

1,030

1,090

1,020

884

817

B64

663 

668

1,090

742

1,050

1,600

-T745C

990

958

1,110

_

25,311

904

+314

Mar.

1,230

1,740

*1,560

1,340

1,050

1,020

1,330

1,130

1,100

1,120

1,660

2,000

2,030

1,950

1,630

1,600

1,800

1,600

1,340 

1,220

1,280

1,420

2,240

2,060

1,900

1,780

1,690

1,610

1,450

1,360

1,390

47,630

1,536

+516

Apr.

1,340

1,270

1,210

1,590

*1,560

1,500

1,620

1,570

1,280

1,210

1,310

1,230

1,140

1,100

1,090

1,070

1,000

1,090

984

1,120

976

1,010

1,030

938

1,470

2,080

2,570

2,570

2,610

2,500

43,038

1,435

+564

Hay

2,040

1,810

1,610

1,460

1,340

1,550

1,360

1,170

*1,290

1,190

1,110

1,070

1,020

738

744

944

871

824

769 

709

557

311

5U5

709

600

554

659

362

368

415

776

29,435

950

+ 190

June

763

716

650

317

347

799

627

479

522

478

159

221

843

689

664

575

484

123

147 

641

529

437

557

550

371

527

814

668

612

592

15,901

530

+140

July

522

125

163

434

852

494

*288

*529

348

273

747

564

329

370

493

130

189

683

559 

445

376

312

126

207

376

311

334

285

276

93

191

11,404

368

-125

Aug.

368

359

253

256

256

184

47

253

331

*256

246

380

702

2,580

1,890

1,400

98O

3.0OO

*50,600 

*2O,8OO

1O,80O

7,360

6,450

5,740

4,330

3,610

3,050

2,570

2,340

2,080

1,920

115,291

3,719

+ 1,020

Sept.

1,790

1,560

1,380

1,06C

1,080

1,380

1,290

970

924

732

586

888

941

802

551

796

486

316

656 

738

473

514

703

215

786

957

939

*897

906

816

26,132

871

-19.0

Adjusted for diversion and change in reservoir contents

Mean 

Cfsm 

In.

702 

1.02 

1.18

1,870 

2.72 

3.03

Calendar year 19541; 

Water year 1954-55C

1,931 

2.81 

3.24

1,084 

1.58 

1.82

1,217 

1.77 

1.84

2,052 

2.98

3.44

1,999 

2.91 

3.24

1,139

1.66 

1.91

Observed

Max 3,970 Min 225 Mean 1,032 

Max 30,600 Min 47 Mean 1,259

670 

0.974

1.09

243 

0.353 

0.41

4,739 

6.89 

7.94

852 

1.24 

1.38

Adjusted

Mean 1,319 Cfsm 1.92 In. 26.04 

Mean' 1,546 Cfsm 2.25 In. 30.52

* 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, equivalent in cubic feet per second.

b State-discharge relation affected by ice.

Note.--Backwater from aquatic vegetation May 17 to Aug. 13, Aug. 16-18.
210 CONNECTICUT RIVER BASIN

Westfield River at Knightville, Mass.

Location. Lat 42°17'16", long 72°51'53", on left bank at Knightville, Hampshire County, 

0.2 mile downstream from Knightville 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.

Records available. August 1909 to September 1955,

Gage. 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 ffc upstream at datum 18.75 ft higher.

Average discharge. 46 years, 324 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 4,680 cfs Aug. 28 (gage height, 6.67 ft); minimum, 5.5 cfs Sept. 30; minimum daily, 9.4 cfs Aug. 6, 7.

1909-55: Maximum discharge, 37,900 cfs Sept. 21, 19 33 (gage height, 29.58 ft, from 

floodmarks, site and datum then in use), from rating1 CUIVF extended abTve 3,800 cfs on 

basis of slope-area determinations at gage heights ?4.07 tiMfl 29.58 ft; minimum, 0.6 cfs 

Aug. 11, 1941; minimum daily, 4 cfs Aug. 10, 1913.

Remarks. Records excellent; 

P. 232).

Plow regulated by Knightvllae 'Wrvolr sime 1941 (see

Revisions (water years). WSF 415: 1909-12. WSP 1001: 1941-43. YSP 1231: -1910. 

19131M), calendar years, 1914-15, 1916-19(M), 1921-23(M), 1925-27(M), 1929-33(M), 

1935 M).

Rating table, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

1.8 

2.0

2.5

2.6 

3.0

114

225

3.5 

4.0 

4.5 

5.O 

6.0

440

765

1,220

1,810

3,310

Discharge, In cubic feet per second, water year October 1954 to September 1955

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

(t)

Oct.

128

151

164

151

131

121

128

112

106

10S

126

124

110

101

101

798

404

250

196

173

159

146

133

126

119

114

126

161

174

366

322

5,629

182

+0.11

Nov.

243

203

302

2,340

5,060

1,670

519

440

39O

343

313

300

277

261

250

232

*225

3OO

339

663

1,220

2,630

1,820

658

648

588

555

507

738

922

22,956

765

+ 1.54

Dec.

620

519

405

348

339

216

178

2O3

280

322

326

304

284

259

1,160

1.940

896

715

1,490

*1,570

947

568

400

395

395

322

304

357

617

750

669

18,098

584

+ 1.08

Jan.

420

420

537

451

339

317

313

236

206

215

209

170

154

124

104

110

116

116

116

114

110

HO

106

106

106

101

73

62

64

64

64

5,753

186

+ 1.27

Feb.

62

62

62

64

61

61

190

326

213

161

173

409

501

333

193

135

116

119

121

124

148

168

187

585

357

299

263

229

-

___ __

5,722

204

+3.47

Mar.

462

*1,150

1,030

392

239

288

339

194

181

^89

679

1,470

1,940

1,250

755

765

930

445

381

304

339

330

473

352

385

352

288

222

250

404

*676

17,554

566

-4.14

Apr.

913

1,210

1,240

712

750

1,250

1,730

1,380

742

964

1,460

1,350

896

797

1,130

1,280

930.

669

648

676

641

683

669

537

774

892

1,41O

1,940

2.760

1,87O

32,903

1,097

-0.27

May

765

620

519

468

43O

400

362

339

322

*284

257

232

212

206

190

173

167

156

143

128

119

112

106

119

158

383

199

151

131

343

215

8,409

271

-2.61

June

167

148

131

114

106

95

*86

86

86

84

75

117

151

124

104

84

72

61

55

56

56

184

105

87

119

86

7O

64

64

55

2,892

96.4

-0.12

July

49

44

81

64

47

*49

54

46

38

50

54

34

27

26

24

26

31

37

28

24

21

18

17

16

15

*15

15

16

15

16

1,013

32.7

-O.O4

Aug.

14

12

11

10

9.9

9.4

9.4

11

14

14

13

67

393

31O

951

2,000

1,140

145

187

130

68

383

781

1,560

2,080

1,880

1,640

2,230

2.92O

2,870

1,230

23,092.7

745

+O.15

Sept.

161

61

75

80

82

86

86

86

86

86

86

84

84

125

193

128

65

58

55

54

56

50

45

382

45 O

173

*116

241

259

157

5,710

124

0

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

182 

1.12 

1.29

767 

4.75 

5.28

Calendar year 1954 : 

Water year 1954-55 :

585 

5.61 

4.16

187 

1.15 

1.53

2O8 

1.28 

1.54

562 

5.47 

4.0O

1,096 

6.77 

7.55

269 

1.66 

1.91

Observed

Max 3.O6O MIn 19 Mean 595 

Max 3,060 MIn 9.4 Mean 4O5

96.3 

0.594 

0.66

32.6 

0.201 

0.23

745 

4.60 

5.30

124 

0.765 

O.85

Adjusted

Mean 595 Cfsm 2.44 In. 55. 09 

Mean 405 Cfsm 2.5O In. 53. 9O

* Discharge measurement made on this day.

t Change In contents, equivalent In cubic feet per second In Knightville Reservoir.
CONNECTICUT RIVER BASIN 211

Sykes Brook at Knlghtvllle, Mass.

Location, Lat 42°17'27", long 72°52'15", on right bank 200 ft downstream from bridge 

 onState Highway 112 at Knlghtvllle, Hampshire County, 0.4 mile upstream from mouth, 

0.4 mile west of Knightville Dam, and 3.5 miles north of Huntlngton.

Drainage area. 1.64 sq ml.

Records available.--June 1945 to September 1955.

Gage. Water-stage recorder and concrete control. Datum of gage is 641.40 ft above 

mean sea level, datum of 1929.

Average discharge. 10 years, 2.76 cfs.

Extremes. Maximum discharge during year, 680 cfs Aug. 19 (gage height, 4.485 ft), from 

rating curve extended above 80 cfs; minimum, 0.04 cfs Aug. 8, 9.

1945-55: Maximum discharge, that of Aug. 19, 1955; minimum, 0.03 cfs Aug. 31, 

Sept. 1, 1953.

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

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Aug. 19 Aug. 19 to Sept. 30

1.12

1.2

1.3

1.4

1.5

1.6

0.06

.14

.29

.52

1.01

2.1

1.7

1.8

1.9 

2.1 

2.3

3.8

6.4

10.0

22

42

1.9 

2.1 

2.4

10.0

20

44

2.8 

3.2

97

175

Note. Same aa precedIngtable below 1.9 ft.

Discharge, In cubic feet per second, water year October 1954 to September 1?55

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

CfBltl

In.

Oct.

1.24

1.14

1.14

1.14

1.09

1.14

1.09

.97

.93

.97

1.01

.93

.86

.80

iTeo

4.O27T

1.57

1.39

1.28

1.19

1.14

1.09

1.09

.97

.97

1.28

1.34

2.6

3.4

3.0

44.46

1.43

0.872

1.01

Nov.

2.1

2.5

29

T5M

7.4

5.8

4.8

4.2

*3.6

3.2

3.0

2.8

2.6

2.4

2.2

2.1

2TT

2.3

2.5

9.3

15.0

9.0

6.4

5.5

6.4

5.5

5.0

4.6

10.8

9*6

183.8

6.13

3.74

4.17

Dec.

6.8

5.5

4.6

3.8

3.5

3.1

2.8

2.5

2.6

2.8

2.6

2.3

2.1

10.6

1S.1

7.8

5.6

16.7

13.5

*8.0

6.4

5.2

4.4

4.1

3.6

3.2

3.0

3.1

4.2

5*8 s'.o

173.3

5.59

3.41

3.93

Jan.

3.9

4.7

4.6

3.9

3.4

3.4

3.0

2.6

2.3

2.2

2.0

1.8

1.69

1.2

1.3

1.6

1.19

1.05

1.1

.85

.75

.90

.95

1.01

.90

.86

.80

.76

.66

.54

.50

56.41

1.82

1.11

1.28

Feb.

0.49

.48

.48

.48

.49

.54

3.1

2.7

2.2

1.9

4.4

3.0

2.5

2.4

2.1

1.8

1.6

1.6

1.6

1.65

1.7

1.7

5.4

4TT

3.4

2.7

2.5

4.2

_

61.21

2.19

1.34

1.39

Mar.

9.2

5.6

4.1

3.4

3.1

3.4

3.0

2.6

177

6.3

14.3 -§7Z

8.0

5.6

4.7

6.2

5.0

3.6

3.2

2.9

3.0

4.2

5.4

4.2

4.7

4.1

3.2

2.9

3.4

5.6

*6 * 1

152.9

4.93

3.01

3.47

Apr.

6.4

7.6

6.2

6.4

10.9

12.9

11.2

7.6

5.8

6.1

6.4

5.8

5.1

5.0

5.5

5.2

4.7

4.1

4.1

5.9

4.3

4.7

4.7

4.3

19.4

19.9

15.0

9.6

12.4

8*8

234.0

7.80

4.76

5.31

May

6.8

5.6

5.0

4.4

4.0

3.7

3.4

3.2

3.0

*2.8

2.7

2.4

2.1

1.99

1.87

1.69

1.57

1.45

1.28

1.14

1.05

.93

753

1.34

2.4

2.7

1.87

1.45

1.47

2.2

1.57

78.00

2.52

1.54

1.77

June

1.34

1.19

.97

.90

.83

.72

*.64

.64

.64

.60

.60

1.28

1.09

.80

.68

.53

.42

.34

.30

713

.74

~77s 1.51

1.23

1.39

.78

.64

.72

.86

.58

24.14

0.805

0.491

0.55

July

0.44

.40

.41

.28

.25

*.36

.36

.28

.23

.21

.20

.17

.15

.14

.13

.22

.22

.16

.13

.12

.11

.10

.09

.09

.08

*.08

*.08

.12

.11

.09

.08

5.89

0.190

0.116

0.13

Aug.

0.08

.07

.07

.07

.07

.07

756" .06

.06

.06

.07

.52

5.8

14.7

5.1

2.6

1.63

32

159 "TT

10.0

6.4

5.4

3.9

3.1

2.5

2.1

1.81

1.51

1.45

1.57

282 . 83

9.12

5.56

6.41

Sept.

1.51

1.39

1.24

1.09

1.29

1.81

1.34

1.01

.86

.78

1.04

1.09

.80

.72

.68

.66

.C2

.41

.38

.38

.34

.30

.29 475-

278

1.51

*1.09

2.6

1.81

1.45

35.69

1.19

0.726

0.81

Calendar year 1954 : Max 29 Mln 0.10 Mean 3.20 cfsm 1-95 in. 26.47

Water year 1954-55 : Max 159 Mln 0.06 Mean 3.65 Cfsm 2.23 In. 30.23

Peak discharge (base, 35 cfs). Nov

(2.27 ft); Apr. 25 (5 to 5:30 p.m.) 3

. 3 (7:30 to 8 a.m.) 38 cfs (2.26 ft); Dec. 14 (11 p.m.) 39 cfs 

8 cfs (2.255 ft); Aug. 19 (3:30 a.m.) 680 cfs (4.485 ft).

Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Dec. 4, 6-8, 17, 21-23, 25. 26, Jan. 5, 7-9, 11, 

127~14-16, 18-23, 25, Jan. 28 to Feb. 26, Mar. 1, 4-9, 13, 14, 17-20, 22-24, 27, 28.
212 CONNECTICUT RIVER BASIN 

Middle Branch tfestfield River at Goss Heights, Mas

Location. Lat 42 0 15'3l", long 72°52'23", on right bank at upstream side of highway bridge 

at Goss Heights, Hampshire County, 0.35 mile upstream from mouth and 1.7 miles north of 

Huntington.

Drainage area.--58.6 sq mi.

Records available.--July 1910 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 400.30 ft above mean sea leTrel, datum of 

1929. Prior to Sept. 8, 1912, chain gage at same site. Prior to June 25, 1930, at 

datum 1.00 ft higher.

Average discharge. 45 years, 105 cfs.

Extremes. Maximum discharge during year, 16,500 cfs Aug. 19 (gage height, 11.33 ft), from 

rating curve extended above 5,700 cfs on basis of slope-area determination of peak flow; 

minimum 1.3 cfs Aug. 8.

1910-55: Maximum discharge, 19,900 cfs Sept. 21, 1938 (gage height, 10.61 ft), from 

rating curve extended above 3,200 cfs on basis of mean of two contracted-opening determinations of peak flow; 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 good except those for periods of ice effect, no gage-height record, or 

shifting control, which are fair. Some diurnal fluctuation at low flow prior to 1952 

by mill above station.

Revisions (water years1.--WSP 415: 1910-12, calendar years. WSP 781: 1933(M), drainage 

area.

Rating tables, water year 1954-55, except periods of Ice effect or shifting 

control (gage height, In feet, and discharge, In cubic feet pep second)

Oct. 1 to Aug. 19 Aug. 19 to Sept. 30

.7

.8

1.0

1.2

1.4

1.4

1.7

3.2

5.6

14

26

46

1.7 

2.0 

2.5 

3.0 

4.0 

4.5

91

159

324

560

1,200

1,600

1.0 

1.4 

2.0

80

166

361

2.5 

3.0 

4.0 

5.0 

6.0 

6.5

575

860

1,770

3,090

4,750

5,660

Discharge, In cubic feet pep second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

r ^

1 7

' 6

29

30

31

Total

Mean

Cfsm

In.

Oat.

g37

39

37

g34

S32

30

g31

28

27

27

g29

S27

g24

S23

g24

200

100

g66

54

g49

g45

g41

S37

34

S31

g32

42

g55

g66

g!20

1,516

48.9

0.930

1.07

Nov.

g65

62

1,550

480

g301

200

160

g!36

*gl!3

98

86

76

70

66

62

59

59

74

82

382

1,300

451

254

193

193

170

154

144

264

268

7,372

246

4.68

5.21

Dec.

181

152

127

107

105

90

82

84

86

100

88

76

72

220

710

282

190

606

573

*275

184

145

130

125

105

92

90

88

252

240

193

5,850

189

3.59

4.14

Jan.

139

152

179

136

105

109

90

68

68

66

58

54

50

33

43

47

34

28

32

26

21

25

25

25

*22

21

21

21

18

16

15

1,747

56.4

1.07

1.24

Feb.

14

14

13

13

13

15

105

76

66

59

170

115

76

71

66

53

48

48

48

50

50

49

193

230

125

92

77

101

-

2,050

73.2

1.39

1.45

Mar.

349

*293

156

113

105

110

103

82

91

ISO

633

530

417

257

196

321

241

150

120

104

101

115

173

118

132

118

95

80

85

137

192

5,867

189

3.59

4.15

Apr.

336

438

330

227

*326

504

578

324

243

386

453

338

243

234

349

345

234

181

173

165

173

187

193

156

860

764

590

320

380

275

10,305

344

6.54

7.29

May

205

170

146

129

116

103

93

89

82

*74

66

59

55

51

45

42

39

36

34

32

30

27

26

31

37

50

42

32

31

51

39

2,062

66.5

1.26

1.46

June

31

27

24

22

21

18

*17

17

17

15

14

24

26

21

18

15

13

11

10

Tl

12

85

41

28

40

26

18

17

18

14

671

22.4

0.426

0.47

July

11

10

28

zT

14

*17

23

16

11

9.2

7.6

6.2

5.6

5.0

4.5

5.0

5.6

5.3

4.5

4.2

3.8

3.6

3.4

3.0

3.0

2.8

*2.8

3.2

3.2

3 2

2 5

248.2

8.01

0.152

O.18

Aug.

2.4

2.0

*1.8

1.7

1.6

1.5

1.5

*1.4

1J3

2.0

2.4

10

329

841

211

79

44

*1,400

«SJ90

578

263

185

154

114

85

70

59

51

43

39

39

9,803.9

316

6.01

6.93

Sept.

36

31

28

25

26

37

28

20

17

16

17

21

16

14

14

13

12

11

10

11

11 *gio

10

~9T 108

43

g26

66

56

36

861

28.7

0.546

0.61

Calendar year 1954 : Max 1,360 Min 3.6 Mean 122 Cfsm 2.32 In. 31.40

Water year 1954-55: Max 5,190 Min 1.4 Mean 132 Cfsm 2.51 In. 34.20

Peak discharge (base, 1,650 cfs). --Nov. 3 (about 1 p.m.) about 2.300 cfs (gage height unknown):

Nov. 21 (4 a.m.) 2,580 cfs (5.50 ft); Apr. 25 (7 p.m.) 1,920 cfs (4.85 ft); Aug. 1? (4 a.m.)

* Discharge measurement made on this day.

g Computed from once-daily staff- OP chain-gage readings.

Note.--No gage-height record Oct. 2, 3, 6, 8-10, 16, 17, 19, 24, 27, 31, Nov. 2-4, 6, 7, 10-14, 

Sept. 2-5, 7-21, 23; discharge estimated on basis of weather records and records fcr West Branch 

Westfield River at Huntington. Stage-discharge relation affected by ice Dec. 4-14, 22-28, 30, Jan. 

Jan. 7 to Feb. 21, Feb. 24-26, Mar. 4-10, 18-20, 27-29. Shifting-control method used Oct. 1 to 

Nov. 14.
CONNECTICUT RIVKR BASIN

West Branch Westfield River at Huntington, Mass.

Location.--Lat 42°14'14", long 72°53'46", on left bank at Huntington, Hampshire County, 

0.4 mile downstream from Roaring Brook and lj miles upstream from mouth.

Drainage area.--93.7 sq mi.

Records available. September 1935 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 388.60 ft above mean sea level, datum of 

1929.

Average discharge. 20 years, 190 cfs.

Extremes. Maximum discharge during year, 26,100 cfs Aug. 19 (gage height, 15.27 ft), 

from rating curve extended above 9,500 cfs on basis of slope-area determination of 

peak flow; minimum, 3.3 cfs Aug. 9.

1935-55: Maximum discharge, that of Aug. 19, 1955; minimum, that of Arg. 9, 1955.

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

urnal fluctuation at low flow caused by mill above station.

Rating tables, water year 1954-55, except periods of Ice effect (gage

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

(Shifting-control method used Aug. 18)

Some diOct. 1 to Aug. 17 Aug. 18 to Sept. 30

1.2

3.3

3.8

6.6

15

36

68

1.5 

1.9 

2.5 

3.0 

4.0 

5.0

121

245

585

930

1,630

2,5OO

0.6

.9 

1.2 

1.5 

1.8

17

40

132

226

2.5 

3.0 

4.0 

6.0 

8.0

2.1 375

625

970

1,780

4,1OO

7,340

10.0 11,400

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50

51

Total

Mean

Cfsm

In.

Oct.

71

74

71

68

61

57

60

55

51

51

54

51

46

45

44

555

187

128

104

95

88

80

74

66

61

70

85

110

125

187

2,886

95.1

0.994

1.15

Nov.

140

126

2.150

902

520

568

286

241

215

187

168

160

140

153

126

117

*TTf

151

143

609

2,040

799

488

573

568

525

500

286

489 

50O

12,927

451

4.60

5.13

Dec.

551

286

241

200

204

162

154

160

162

190

168

145

155

405

1.450

526

550

997

958

*488

525

258

254

254

190

171

171

171

416 

590

546

10,574

541

5.64

4.20

Jan.

250

265

 257 515

194

200

171

155

155

155

119

108

108

68

85

102

95

62

68

55

44

52

55

56

*55

51

47

47

41 

55

5,405

110

1.17

1.55

Feb.

29

28

28

28

27.

29

210

170

145

115

310

230

155

145

140

110

98

98

96

100

102

100

333

364

230

174

160

207

-

3,961

141

1.50

1.57

Mar.

65O

*572

500

215

187

211

207

160

168

546

1,160

845

685

425

525

510

402

250

204

178

184

195

268

211

245

218

177

151

160 

229

382

10,578

555

5.58

4.12

Apr.

584

7O6

516

556

*552

904

1,020

592

445

594

65O

520

584

575

520

514

375

510

29O

276

281

520

540

276

1.220

1,180

1,000

572

741 

526

16,955

564

6.02

6.72

May

595

520

272

241

222

200

177

171

162

*148

140

128

117

108

100

92

86

80

74

67

65

56

55

66

76

156

98

74

64 

112

83

4,181

155

1.44

1.66

June

72

66

57

50

47

43

*58

57

37

35

32

58

66

49

40

32

27

24

23

23

26

72

49

40

88

51

56

55

42 

52

1,525

44.2

0.472

0.55

July

24

22

28

27

22

*57

56

24

19

16

15

15

11

11

10

11

15

12

1O

9.0

8.5

7.6

7.2

6.6

6.6

6.6

6.6

*6.2

6.2 

5.9

5.6

445.4

14.5

0.155

0.18

Aug.

5.5

4.8

4.5

4.2

4.0

5.8

3.8

*3.5

3.5

4.0

4.5

20

554

1,210

341

145

94

*2,260

 W4500

;.,390

749

617

481

310

211

161

152

114

95

fll Ol

81

..9,587.7

632

6.74

7.77

Sept.

75

64

58

55

54

86

59

45

58

56

58

45

56

51

50

29

26

24

22

24

25

22

22

218

259

94

*60

181

146

89

1,969

65.6

0.700

0.78

Calendar- year 1954: Max 2,160 Mln 8.0 Mean 217 Cfsm 2.52 In. 51.47

Water year 1954-55: Max 10,5OO Mln 5.5 Mean 245 Cfsm 2.59 In. 55,16

Peak discharge (base, 2.7OO efs. revised).--Nov. 5 (l p.m.) 5.070 efs (5.65 ft); No*'. 21 (4 s.m.) 

5,450 cfs (6.05 ft)j Dec. 15 (12:50 to 1 a^m.) 2,750 cfs (s.28 ft); Aug. 19 (4:50 a.m.) 26,100 cfs 

(15.27 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 4, B, 12, 15, 25, 5O, Jan. 8, 9, 18, 2O, 21, 

27, 28, Feb. 1-14, 19, 2O, Mar. 1, 4, 8.
214 CONNECTICUT RIVER BASIN

Westfield Little River at outlet of Cobble Mountain Reservoir, 

near Westfield, Mass.

Location. Lat 42°07'34", long 72°53'37", at Cobble Mountain Dam, 7? miles west of Westfield, Hampden County.

Drainage area. 45.8 sq mi.

Records available. July 1905 to September 1955. Published as "near Blandford" 1905-11 

and as "near Westfield" 1912-35.

Gage.--Venturi meters at outlet tunnel at powerhouse 2.4 miles downstream. Prior to 

"Mar. 1, 1910, staff or chain gages at site a quarter of a mile upstream and Mar. 1, 

1910, to Sept. 30, 1935, water-stage recorder at diversion dam 25- miles downstream.

Average discharge. 45 years (1910-55), 90.8 cfs (adjusted to present drainage area).

Remarks.--Discharge computed on basis of flow through Venturi meters and flow over reser- 

 voiF spillway or through bypass tunnel. Flow regulated by Borden Brook Reservoir

since 1910 and Cobble Mountain Reservoir since August 1931 (see p. 232); discharge

adjusted for effect of this regulation.

Cooperation. Records furnished by Board of Water Commissioners, Springfield. 

Revisions. WSP 501: Drainage area.

Monthly discharge, in cubic feet per second, water year October 1954 

to September 1955

Month

May...........................

Water year 1954-55. .........

Mean

218

108

616

22.4

144

Per square

mile

4.76

2.36

1.37

13.4

.489

3.14

Runoff in 

inches

5.32

4.82

32.29

1.58

6.77

-.01

15.51

.55

42.56

Note. Negative figures indicate that evaporation and seepage from 

reservoirs exceeded inflow.
CONNECTICUT RIVER BASIN 215

Westfield River near Westfield, Mass.

Location.--Lat 42°06 I 24", long 72°41 I 58", on left bank 0.7 mile downstream from Great 

Brook and 3 miles east of Westfield, Hampden County.

Drainage area. 497 sq mi.

Records available. June 1914 to September 1955.

Gage. Water-stage recorder. Datum of gage is 98.25 ft above mean sea level, datum of 

1929. Prior to Nov. 3, 1933, on right bank at same datum.

Average discharge. 41 years, 948 cfs (adjusted for diversion and, since October 1931, 

for storage).

Extremes. Maximum discharge during year, 70,300 cfs Aug. 19 (gage height, 34.2 ft, from 

floodmarks), from rating curve extended above 18,000 cfs on basis of computations of 

flow over dam at gage heights 27.20, 29.40, and 34.2 ft; minimum, 73 cfs Au^. 8; minimum daily, 79 cfs Aug. 1, 8.

1914-55: Maximum discharge, that of Aug. 19, 1955; minimum, 9 cfs Oct. 2, 1921.

Remarks. Records excellent except those for periods of ice effect, doubtful gage-height 

record, or backwater from aquatic vegetation, which are good, and those for periods of 

no gage-height record, which are fair. Flow regulated by diversion from Westfield 

Little River for municipal supply of Springfield and by Borden Brook Reservoir, Cobble 

Mountain Reservoir since 1931, and Knightville Reservoir since 1941 (see p. 232).

Revisions (water years). WSP 601: 1924(M). WSP 756: Drainage area. WSP 1051: 

1919-21(M), 1925(M). WSP 1231: 1915-16JM), 1920.

Rating table, water year 1954-55, except periods of Ice effect (gage 

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

2.9 

3.2 

3.5 

4.0 

4.5 

5.0

143

228

418

645

945

6.0

8.0

10.0

15.0

20.0

25.0

1,690

5,72O

6,440

15,000

26,500

40,000

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Itotal

Mean

OCt.

479

414

384

589

448

488

397

405

328

516

367

348

400

370

373

1.260 

1,110

760

594

526

505

461

418

354 

423

585

559

582

660

932

874

16,709

539 

-33.1

Nov.

730

605

d5,000

4,600

4,430

3,230

1,450

1,210

1,090

d985

d855

880

d796

684

872

712 

*668

689

796

1,860

d5,600

4,470

3,540

1,980 

1,730

1,590

1,490

1,320

2,100

2,610

58,572

1,952 

+15O

Dec.

2,010

1,670

1,410

1,050

1,000

1,200

1,100

1,150

1,200

1,150

1,050

840

1,100

1,800

5.170

4,020 

2,520

2,950

4,500

3,380

2,650

 1,980

1,580

1,370 

1,090

932

1,100

1,230

1,67O

2,360

2,100

58,332

1,882 

-68.8

Jan.

1,40O

1,260

1.750

1,660

1,330

1,390

1,380

992

740

1,060

1,080

939

994

790

537

482 

674

730

666

692

b560

b420

b310

b420 

5B6

*56O

592

b540

b380

b24O

b370

25,484

822 

-168

Feb.

b430

b450

b570

b425

b540

370

1,120

851

625

541

831

1.460

958

850

610

505 

483

457

470

456

510

535

7B4

1,430 

1,120

736 "748

790

_

19,435

694 

+16.2

Mar.

1,510

2,390

 2,070

1,150

820

766

997

876

625

814

2,730

3,420

5.550

2,490

1,820

1,850 

2,220

1,520

1,060

874

984

1,240

1,900

1,290 

1,530

1,250

1,060

906

844

919

1,520

46,555

1,502 

+117

Apr.

2,040

2,650

2,690

2.0OO

*2,140

5,150

4,090

5,040

1,930

2,020

2,910

2,720

2,070

1,760

2,190

2,490 

2,000

1,550

1,510

1,470

1,590

1,570

1,600

1.550 

5,560

4,470

4,510

5,550

4.850

5,880

--------

76,950

2,564 

+264

May

2.090

1,720

1,450

1,290

1,220

1,500

1,070

978

997

874

 826

718

672

610

555

682 

597

559

505

422

418

555

410

584 

584

788

776

452

410

645

683

24,801

800 

+71.5

June

485

427

597

576

514

516

506

 280 26'2

276

266

514

459

389

544

280 

255

212

186

258

256

580

400

530 

460

260

280

260

500

250

9,776

526 

+15.3

July

210

190

220

180

230

550

*260

216

185

199

206

186

152

220

261

259 

122

165

153

134

105

105

110

110 

95

110

91

97

105

91

101

5,210

168 

-15.2

Aug.

*79

110

95

107

114

114

95

79

85

81

101

202

1,500

5,140

1,790

2,250 

1,960

7,210

*57.400

11,000

3,620

2,710

3,040

5,200 

5,480

2,740

2,580

2,470

3,490

3,350

2,580

100,550

5,237 

+187

Sept.

820

684

590

501

514

750

641

564

494

548

476

542

448

474

514

570 

405

532

540

636

404

402

 420

705 

1.540

667

514

632

850

582

17,537

585 

-66.5

Adjusted for diversion and change In reservoir contents

Mean 

Cfsm 

In.

506 

1.02 

1.17

2,102 

4.23 

4.72

Calendar year 1954 : 

Water year 1954-55:

1,813 

3.65 

4.21

654 

1.32 

1.52

710

1.43 

1.49

1,618 

3.26 

3.75

2,828 

5.69 

6.35

872 

1.75 

2.02

Observed

Max 5,600 Min 89 Mean 1,063 

Max 37,400 Min 79 Mean 1,259

341 

0.686 

0.77

153 

0.308 

0.35

3,424 

6.89 

7.94

518 

1.04 

1.16

Adjusted

Mean 1,117 Cfsm 2.25 In. 30.54 

Mean 1,298 Cfsm. 2.61 In. 35.45

* Discharge measurement made on this day.

t Diversion from Westfield Little River and change in contents in Knightville, Borden Brook, and 

Cobble Mountain Reservoirs, equivalent In cubic feet per second.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of recorder graph, weathe.- records, and 

records for other stations In Westfield River basin.

Note. No gage-height record Dec. 4-14, June 22 to July 7, Aug. 22; discharge estimated on basis 

of 1 discharge measurement, weather records, recorded range in stage when available, aid records for 

other stations In Westfield River basin. Backwater from aquatic vegetation July 12 to Aug. 13.
216 CONNECTICUT RIVER BASIN 

Connecticut River at Thompsonville, Conn.

Location. Lat 41°59'14", long 72°36'21", on right bank Just upstream from Enfield Dam 

and 1 mile downstream from Thompsonville, Hartford County.

Drainage area. 9,661 sq mi.

Records available. July 1928 to September 1955.

Sage. Water-stage recorder on river and on canal of Connecticut Light and Power Co. 

Datum of gage is 38.48 ft above mean sea level, datum of 1929.

Average discharge. 27 years, 16,520 cfs (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 174,000 cfs Aug. 19 (gage height, 10.93 ft); 

minimum daily, 1,130 cfs Aug. 7.

1928-55: Maximum discharge, 282,000 cfs Mar. 20, 1936 (gage height, 16.6 ft, from 

floodmarks); minimum daily, 1,060 cfs Aug. 28, 1949, Sept. 27, 1953.

Remarks.--Records excellent except those below 4,000 cfs and those for periods of ice 

 effect, 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 p. 232), and other reservoirs (combined usable capacity, about 882 billion cubic 

feet).

Revisions (water years). WSP 741: 1932. WSP 891: Drainage area.

Discharge, In cubic feet per second, water year October 1954 t° September 1955

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

12,800

11,600

10,300

8,760

12,700

17,300

19.500 

18,100

15,600

13,700

12,900

11,000

11,300

11,400

12,200

16,100

18,300

15,500

12,300

11,300

12,200

11,300

9,900

6,610

6,580

7,400

8,860

9,410

11,800

13,500

14,000

384,720

12,410

-218

Nov.

10,400

12,200

19,900

50.800

46,000

34,800

27,000 

23,800

19,300

16,200

15,300

15,000

14,500

11,500

7.590

13,000

14,400

* 13, 000

12,600

14,800

31,800

48,800

48,000

40,900

35,400

30,900

24,800

23,100

24,200

26,700

--------

726,690

24,220

+774

Dec.

28,200

28,5OO

25,100

21 , 800

18,700

12,500

12.500 

b!3,200

b!3,700

16,000

18,000

17,100

13,000

14,400

24,000

30,600

26,700

25,000

41,000

44,500

*35,400

27 , 800

25,600

23,800

21,200

17,700

15,500

15,800

18,900

24,500

26,400

694,700

22,410

-755

Jan.

24,400

25,800

24,700

21,800

19,800

19,200

18,700 

19,200

14,900

11,300

11,800

12,200

12,600

bl5,700

bll,600

10,100

10,100

blO,400

bll,500

bll,600

bl 1,500

9,800

7,500

6,710

9,060

9,270

8,480

b8,280

6,630

4.540

4,740

599,510

12,890

-1,988

Feb.

7,230

6,970

b6,460

b6,050

5,290

5,770

7,940 

14,500

10,600

9,270

9,960

15,800

b!5,400

b!2,500

11,400

10,600

10,700

10,500

9,560

8,560

7,050

9,570

11 , 800

15,600

16,000

16,800

18,000

17,400

_

--------

298,680

10,670

-771

Mar.

18,700

28,000

*54,400

26,100

21,100

19,200

17,200 

14,300

13.200

14,200

16,300

51,000

42.800

41,400

54,700

32,500

38,500

36,800

31,500

26,200

23,000

22,900

25,400

24,200

21,700

20,500

18,400

16,800

14,800

15,500

16 , 200

757,500

24,440

+112

Apr.

19,600

31,700

40,500

41,900

37,600

*42,300

49 , 900 

56,600

57,400

50,400

52,200

65,400

68,800

62,600

59,200

71,800

84.500

81,200

73,900

70,800

69,400

67,000

59,800

52,800

50,600

61,400

67,400

62,700

57 , 800

52,700

________

VIS, 900'

57,550

+4,084

May

45.100

40, 500

55,800

31,400

28,500

30,100

28,900 

28,600

27,400

25,600

*25,800

25,900

24,000

20,700

17,600

15,800

13,200

12,800

12,600

12,000

10,400

7,460

6,720

9,510

10,600

12,200

14,600

15,700

11,500

8,440

14,200

619,650

19,990

+1,059

June

15,800

19,000

29.000

26,700

19,900

18,000

16,400 

*12,800

10,500

8,890

5,940

5,570

7,290

14,900

17,600

17,500

16,000

15,400

13,000

7,180

7,990

8,870

12,700

15,600

12,500

11,600

8,720

9,900

9,910

8 ,090

598,850

15,500

+520

July

7,410

6,410

3,900

3,540

6,880

7.700

5,410 

*6,350

5,750

2,560

5,640

4,560

4, TOO

4,090

4,250

2, £40

1,480

2,550

5,690

4,E20

5,980

5,920

3,C90

1,660

2,240

2,830

5, 3=0

4,110

4,870

3, 350

1.240

126,510

4,011

-591

Aug.

2,460

5,420

5,400

2,720

2,620

1,640

1.150 

1,800

2,290

2,550

5,660

9,700

15,400

56,700

45,600

51,300

23,800

29,200

127,000

104,000

49,900

29,400

25,700

24,500

24,800

21,700

18,000

11,100

15,900

14,900

14,200

698,490

22,530

+1,192

Sept.

12.500

11,500

10,200

5,700

2,710

5,460

9,220 

8,920

6,850

5,150

2,890

4,180

6,220

6,150

5,000

4,800

5,370

1,910

5,600

7,490

6,070

4,940

4,220

5,000

7,790

5,500

6,150

*7,120

8,160

7,500

185,650

6,188

-1,145

Adjusted for change In contents and diversion

Mean 

Cf sm 

In.

12,190 

1.26 

1.45

25,000 

2.59 

2.89

Calendar year 1954 : 

Water year 1954-55 :

21,680 

2.24 

2.59

10,900 

1.13 

1.50

9,896 

1.02 

1.07

24,550 

2.54 

2.95

Observed

61,410 

6.56 

7.09

21,030 

2.18 

2.51

Max 82,500 Mln 2,140 Mean 20,890 

Max 127,000 Min 1,150 Mean 19,210

13,610 

1.41 

1.57

5,490 

0.3S1 

0.42

23,720 

2.46 

2.83

5,043 

0.522 

0.58

Adjusted

Mean 21,260 Cfsm 2.20 In. 29.86 

Mean 19,580 Cfsm 2.01 In. 27.25

* Discharge measurement made on this day.

t Change in contents in all reservoirs from First Connecticut and Second Connecticut Lskes to 

Borden Brook and Cobble Mountain Reservoirs listed on page 232 , change in contents in Moore Reservoir 

on Connecticut River, and diversion from Chicopee River basin, equivalent in cubic feet per second.

b Stage-discharge relation affected by ice.
CONNECTICUT RIVER BASIN

Scantic River at Broad Brook, Conn.

Location.-r-Lat 41°54'42", long 72°33'48", on left bank 300 ft upstream from bridge on 

Connecticut Highway 140, half a mile downstream from Broad Brook, 1 mile southwest of 

town of Broad Brook, Hartford County, and 8^ miles upstream from mouth.

Drainage area. 98.4 sq mi.

Records available. August 1928 to September 1955.

Gage. Water-stage recorder. Datum of gage is 26.23 ft above mean sea level, datum of 

1929.

Average discharge. 27 years, 142 cfs.

Extremes. Maximum discharge during year, 13,300 cfs Aug. 19 (gage height, 19.9 ft, from 

floodmarks), from rating curve extended above 1,200 cfs on basis of computation of 

flow over dams, 7 and 9 miles above station, at gage heights 13.9 and 14.4 ft, adjusted for flow from intervening area on basis of computation of flow over dam on 

Broad Brook and by slope-area determination of peak flow at gage height 19.9 ft; minimum, 24 cfs Aug. 5 (gage height, 0.58 ft); minimum daily, 25 cfs Aug. 5.

1928-55: Maximum discharge, that of Aug. 19, 1955; minimum, 10 cfs Aug. 13, 14, 

1944; minimum daily, 16 cfs Aug. 13, 1944.

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

good. Plow regulated by mills and small reservoirs upstream. Records of water temperatures and suspended sediment loads for the water year 1955 are given in WSP 1400.

Revisions (water years).--WSP 726: 1931. WSP 781: Drainage area. 

WSP 921: 1940. WSP 1201: 1929(M), 1934(M), 1938-39, 1948-49.

WSP 851: 1936(M).

Rating tables, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Aug. 19 Aug. 2O-3O

0.5

.6

.7

1.0

1.5

2.0

25

32

68

138

196

4.0 B'.O

9.0

13.0

17.0

450

7O6

1,500

3,720

8,100

1.7 

2.5 

3.0 

6.0

98

198

264

605

9.0 1,360

12.0 2,970

15.0 5,520

Discharge, In cubic feet pep second, water year October 1954 to September 1955

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.

91

88

93

93

83

82

80

78

76

76

SO

80

78

75

*75

S3

112

111

92

85

82

SO

78

76

76

75

76

82

1O7

138

146

2,727

88. 0

0.894

1.03

Nov.

138

115

334

333

307

216

172

150

130

121

113

111

109

107

1O6

103

102

102

103

217

345

3S9

307

216

216

216

2O2

184

234

£56

5,754

192

1.95

2.18

Dec.

256

209

172

150

144

133

120

116

116

138

156

144

128

147

400

389

333

314

44O

44O

367

266

216

2O2

196

178

166

161

19O

332

356

7,075

228

2.32

2.68

Jan.

339

300

307

284

239

231

256

216

196

178

161

150

138

126

121

125

123

113

111

109

95

103

102

*104

103

10O

1OO

84

91

91

85

4,88O

157

1.60

1.84

Feb.

82

82

83

75

78

SO

254

223

196

137

154

292

1S4

172

138

118

156

202

172

150

144

135

210

284

239

178

156

172

-

4,546

162

1.65

1.72

Mar.

244

327

300

231

184

190

248

209

202

256

307

345

333

292

256

266

307

300

239

2O2

19O

310

513

586

47O

378

356

321

275

239

216

9,092

293

2.98

3.44

Apr.

202

196

196

321

345

327

321

284

239

202

190

172

166

172

172

166

156

150

144

144

13S

156

172

166

249

338

450

430

420

400

7,184

239

2.43

2.71

May

367

292

231

196

*220

266

239

223

202

178

166

ISO

138

130

124

117

113

112

1O6

102

96

93

91

92

135

115

112

96

S9

88

89

4,768

154

1.57

1.81

June

109

115

96

85

83

83

76

73

73

70

67

83

104

98

82

*71

65

58

52

62

61

86

82

76

85

83

75

65

62

57

2,337

77.9

0.792

0.88

July

50

50

55

64

58

52

49

57

49

44

57

64

52

43

42

42

49

52

44

46

38

38

35

34

39

31

26

29

30

31

31

1,381

44.5

0.452

0.52

Aug.

31

31

29

28

25

28

29

65

62

48

48

93

258

403

416

233

114

398

*7,77O

5,070

1,460

850

606

a580

a450

a370

333

310

284

259

246

2O, 927

675

6.86

7.91

Sept.

242

221

206

192

182

203

204

193

168

152

154

172

159

144

135

134

132

122

*11S

130

"105 102

102

134

232

206

172

162

166

152

4,896

163

1.66

1.85

Calendar year 1954: Max 624 Mln 35 Mean 144 Cfsm 1.46 In. 19.84

Water year 1954-55: Max 7.77O Mln 25 Mean 207 Cfsm 2.1O In. 28.57

Peak discharge (base. 55O cfa). Mar. 24 (l to 3 p.m.) 599 cfs (5.33 ft); Aug. 19 (6 p.m.) 13,300 

cfs (19.9 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, and records for stations on nearby streams.
218 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 frcm highway 

bridge, 0.3 mile downstream from Clam River, and 1 mile south of New Boston, Berkshire County.

Drainage area. 92.0 sq mi.

Records available. May 1913 to September 1955. Prior to October 1948, published as 

Farmington River near New Boston.

Gage. Water-stage ~~1929. recorder. Datum of gage is 758.21 ft above mean sea level, datum of 

Average discharge. 42 years, 183 cfs (adjusted for storage).

Extremes. Maximum discharge during year, 34,300 cfs Aug. 19 (gage height, 14.06 ft),

from rating curve extended above 9,600 cfs on basis of slope-area determination of peak 

flow; minimum daily, 5.0 cfs July 23, 28.

1913-55: Maximum discharge, that of Aug. 19, 1955; minimum daily, 2.2 cfs Sept. 12, 

1953.

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

doubtful gage-height record, which are fair. August flood flow affected by, and flow 

at other times regulated by, Otis Reservoir (see p. 232).

Revisions (water years). WSP 641: 1924(M). WSP 756: Drainage area. WSP 781: 1928(M). 

WSP 1231:1914.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

68

81

173

166

158

158

140

55

62

152

154

150

144

136

54

214

235

202

184 

173

160 

66

68

154

150

148

154

147

95

163

227

4,391

142

-59.4

Nov.

202

205

1,220

7S1

*450

349

349

311

265

243

212

125

141

207

202

196

196

205

151 

503

1.610 

802

527

413

387

292

242

317

452

448

12,003

400

-10.8

Dec.

359

311

233

198

251

220

215

205

217

207

2l2~ 154

210

335

762

488

*327

771

806

BT4

380 

330

280

180

195

246

237

237

363

370

290

10,113

326

-28.7

Jan.

245

320

339 2§0~

254

230

130

150

220

210

210

190

180

54

100

185

180

155

160 

125

*70 

40

43

45

43

40

38

38

32

28

26

4,370

141

-21.1

Feb.

24

24

24

24

24

30

160

140

120

96

230

195

135

125

115

92

S2

80

80 

84

82 

82

250

TSO" 270

140

130

155

-

3,173

113

+16.6

Mar.

400

373

232

170

155

147

141

123

T5o

219

570

fTS

383

290

230

306

284

202

173 

146

139 

149

184

182

227

196

156

130

125

*165

218

7,020

226

+52.0

Apr.

284

349

317

267

348

544

670

468

336

420

444

390

320

300

400

385

290

240

230 

225

230 

250

260

230

860

840

680

450

600

520

12,177

406

+84.0

Hay

430

370

320

300

*280

305

259

248

232

212

193

128

113

104

93

85

79

73

65 

59

54 

49

49

66

59

64

58

47

47

94

63

4,598

148

+1.5

June

65

*56

45

38

36

36

33

33

31

29

26

39

40

34

31

25

23

22

19 

25

25

77

43

92

164

83

36

45

45

*31

1,327

44.2

+2.9

Jul-r

24

21

'27 25

19

2T

*21

18

19

17

IS

14

14

13

13

13

13

11

7.9 

6.9

*o.6 

5.6

5.0

^g

5.6

5.9

5.3

5.0

5.3

11

16

401.7

13.0

-4.3

Aug.

15

14

14

14

14

16

16

16

15

15

16

34

458

1,340

676

337

178

2,400

* 16, 100 

d3,380

dl,710 

dl,160

d805

d504

d381

d302

d272

d265

d223

dl94

d!71

31,055

1,002

-30.1

Sept.

d!22

153

177

265

265

278

zSS

252

244

240

229

88

59

44

40

38

33

31

31 

103

*40- 30 

45

193

178

92

70

208

143

98

4,054

135

-57.1

Adjusted for change In reservoir contents

Mean 

Cfsm 

In.

82.3 

0.895 

1.03

389 

4.23 

4.72

Calendar year 1954: 

Water year 1954-55:

297 

3.23 

3.73

120 

1.30 

1.50

130 

1.41 

1.47

278 

3.02 

3.49

490 

5.33 

5.94

150 

1.63 

1.88

Observed

Max 1,980 Hin 9.3 Mean 197 

Max 16,100 Hin 5.0 Mean 259

47.2 

0.513 

0.57

8.66 

0.094

0.11

972 

10.6 

12.18

78.0 

0.848 

0.95

Adjusted

Mean 200 Cfsm 2'. 17 In. 29.56 

Mean 255 Cfsm 2.77 In. 37.57

Peak discharge (base, 1.400 cfs).--Nov. 3 (l p.m.) 1,580 cfs (6.30 ft); Nov. 21 (2 a.m.) 2,450 cfs 

(7.01 ft); Dec. 18 (4 p.m.) 1,580 cfs (6.30 ft); Aug. 14 (7:45 a.m.) 2,280 cfs (7.03 ft); Aug. 19 

(4:45 a.m.) 34,300 cfs (14.06 ft); Aug. 21 (7 p.m.) 2,400 cfs (7.13 ft).

* Discharge measurement made on this day.

t Change in contents in Otis Reservoir, equivalent in cubic feet per second.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on 

recorder graph, recorded drop in stage when intake was flushed, and weather records.

Mote. Mo gage-height record Apr. 13 to May 5; discharge estimated on basis of weather records, 

recorded range in stage, records of discharge from Otis Reservoir, and records for West Branch Westfield River at Huntington. Stage-discharge relation affected by ice Dec. 6-8, 21-25, 30, Jan. 1, 

Jan. 6 to Mar. 1, Mar. 4, 5, 28, 29.
CONNECTICUT RIVER BASIN 219

Still River at Robertsville, Conn.

Location. Lat 41 0 58'04", long 73 0 02'03" , on left bank 1,500 ft downstream from Sandy 

Brook, 1 mile southeast of Robertsville, Litchfield County, 1 mile northwest of Riverton, and 1 mile upstream from mouth.

Drainage area. 84.4 sq mi.

Records available. July 1948 to September 1955.

Gage. Water-stage recorder. Datum of gage is 510.24 ft above mean sea level, datum of ~T"929.

Average discharge. 7 years, 195 cfs.

Extremes. Maximum discharge during year, 44,000 cfs Aug. 19 (gage height, 16.48 ft, from 

floodmark), from rating curve extended above 5,600 cfs on basis~of slope-aria determination of peak flow; minimum, 4.4 cfs Aug. 8 (gage height, 0.29 ft); minimum daily, 

5.6 cfs Aug. 9.

1948-55: Maximum discharge, that of Aug. 19, 1955; minimum, that of Aug. 8, 1955; 

minimum daily, that of Aug. 9, 1955; minimum gage height, that of Aug. 8, 1955.

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

which are poor. Ordinary flow regulated by powerplant above station.

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Aug. 19 Aug. 19 to Sept. 3O

1.1 

1.5

4.6 

6.5

12

21

41

84

2.0 

2.5 

3.0 

4.0 

6.0

173

310

520

1,110

2.81O

1.8 

2.0 

2.5 

3.0 

4.0 

5.0

4S

67

144

246

581

1,130

6.0

7.0

9.0

11.0

14.0

1.96O

3,250

6,710

12,300

26,4OO

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

58

54

45

49

63

54

68

57

34

48

42

65

40

61

50

154

114

104

*85

99

83

67

77

59

71

63

67

90

118

TT5" 180

142

2,361

76.2

0.903

1.04

Nov.

118

117

1,020

716

456

303

222

191

166

150

139

126

121

101

108

106

99

108

108

4O5

1.240

762

443

324

328

296

240

211

446

393

9,563

319

3.78

4.22

Dec.

284

226

199

159

146

150

135

130

155

193

193

173

165

3O3

920

550

345

765

926

345

290

260

230

210

200

190

190

30O

500

400

9,752

315

3.73

4.30

Jan.

320

340

230

240

210

230

190

170

160

140

115

130

135

120

110

90

105

95

95

95

95

85

75

80

75

60

80

65

70

60

65

4,180

135

1.60

1.84

Feb.

50

*50

53

51

57

45

470

192

149

1O6

277

240

180

140

110

100

110

125

113

87

109

no

215

250

194

148

139

202

-------

4,072

145

1.72

1.79

Mar.

348

389

255

216

195

190

205

171

169

280

525

466

331

*262

207

289

281

206

180

182

180

237

331

337

417

361

289

231

185

195

245

8,355

270

3.20

3.69

Apr.

264

286

255

299

439

585

674

520

377

353

381

338

292

282

310

260

21S

218

216

*204

202 289"

275

237

637

830

800

505

852

568

12,066

402

4.76

5.31

May

470

369

297

263

235

239

213

174

185

166

146

129

125

81

86

89

87

80

78

66

58

39

60

68

57

79

80

45

44

90

90

4,288

138

1.64

1.89

June

S3" 94

74

54

39

40

41

49

47

33

31

47

66

55

*57

37

35

18

17

50

34

46

54

39

50

50

56

36

47

30

1,409

47.0

0.557

0.62

July

33

16

16

14

22

13

13

14

12

17

35

2?

27

16

21

12

14

24

34

19

20

18

9.9 9T9"

9.9

24

20

16

16

15

13

565.7

18.2

0.216

0.25

Aug.

6.8

5.9

6.1

18

14

13

7.8

5.7

5.6

5.9

9.8

43

331

1,150

592

254

145

2,490

*24,800

3,710

1,150

746

629

46O

324

264

220

202

184

140

148

3Bj080.6

1,228

14.5

16.72

Sept.

155

149

124

133

103

118

*119

68

74

56

80

155

118

87

80

71

57

52

97

83

58

52

175- 48

222

149

111

221

186

130

3,331

111

1.32

1.47

Calendar year 1954: Max 1.270 Mln 8.8 Mean 176 Cfsm 2.09 In. 28.24

Water year 1954-55": Max 24,800 Mln 5.6 Mean 269 Cfsm 3.19 In. 43.14

Peak discharge (base, 1,300 cfs). --Nov. 3 (1:30 p.m.) 1,360 cfs (4.34 ft); Nov. 21 (6 a.m.) 1,500

cfs (4.53 . ft); Dec. . 18 (5:30 p.m.) .. 1,420 cfs (4.45 ft); Aug. 14 (7:30 a.m.) 1,760 cfs (4.88 ft)j

Aug. 19 (8 a.m.) 44,000 cfs (16.48 ft).

* Discharge measurement made on this day.

Note. No gage-height record Dec. 22 to Jan. 14; discharge estimated on basis of weather records, 

records for upstream powerplant and records for Naugatuck River near Thomaston. Stage-discharge 

relation affected by ice Dec. 6-8, Jan. 15 to Feb. 7, Feb. 12-17.
220 CONNECTICUT RIVER BASIN

West Branch Farmington River at Riverton, Conn.

Location.--Lat 41°57'13", long 73°00'5l", on right bank 0.4 mile downstream from Still 

River, 0.6 mile south of Riverton, Litchfleld County, and 8.2 miles upstream from East 

Branch.

Drainage area. 216 sq mi.

Records available. September 1929 to September 1955. Prior to October 1948, published 

as Farmington River at Riverton.

Gage. Water-stage recorder. Datum of gage is 472.22 ft above mean sea level, datum of 

^1929.

Average discharge.--26 years, 405 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 101,000 cfs Aug. 19 (gage height, 20.3 ft, from 

floodmarks); minimum daily, 21 cfs July 23.

1929-55: Maximum discharge, that of Aug. 19, 1955; minimum, 15 cfs Aug. 22, 30, 

Sept. 6, 1953 (gage height, 0.42 ft); minimum daily, 17 cfs Aug. 22, 1953.

Remarks. Records excellent except those for periods of ice effect or no gage-height record, which are good. Flow regulated by Otis Reservoir (see p. 232) and at low flow 

by plants upstream.

Revisions (water years). WSP 781: Drainage area. WSP 1081: 1930-36. WSP 1301: 1935(M).

Rating table, water year 1954-55, except periods of ice effect (gs-ge 

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

0.5 

1.0 

1.5 

2.0 

2.5

20

72

159

303

51O

3.0 

4.0 

5.0 

6.0 

7.O

790

1,540

2,530

3,840

5,390

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

1O

11 

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

(t)

Oct.

168 

160

236

250

254

243

253

152

118

208

224 

245

214

228

150

414

397

348

*306

302

284

186

*167

224

248

240

247

292

255

407

441

7,861

254

-59.4

Nov.

372 

356

2,650

1,820

1,100

790

688

605

515

465

432 

322

299

366

361

349

340

352

330

1,010

5,11O

1,820

1,180

895

895

748

585

640

846

1,070

25,311

844

-10.8

Dec.

790 

664

545

420

478

422

406

410

436

487

4O4 

448

432

700

2. ISO

1,260

825

1,750

2,040

1,260

860

724

64O

535

456

490

495

495

712

1,000

86O

23,624

762

-28.7

Jan.

646 

736

790

670

545

570

416

341

428

420

358 

346

323

202

221

316

333

307

296

250

200

150

140

150

140

120

140

130

120

100

100

10,004

323

-21.1

Feb.

95

*100

105

1OO

95

90

7OO

400

3OO

2OO

500 

545

323

295

259

250

231

241

222

196

221

219

462

61O

447

348

321

461

-

8,336

298

+16.6

Mar.

956 

982

580

469

424

419

435

359

362

570

1,280 

1,190

895

*680

54O

745

730

505

436

400

404

495

TOO

64O

825

724

570

460

400

440

575

19,190

619

+52.0

Apr.

670 

790

754

688

1,OOO

1,380

1,680

1,260

930

965

1,O40 

930

790

742

860

825

700

610

575

*540

535

724

724

59O

1,520

2,000

1,95O

1,26O

1,860

1,460

30,352

1,012

+84.0

May

1,100 

895

742

658

610

658

555

495

495

444

415 

33O

305

246

236

226

222

202

191

169

154

128

141

172

157

2O3

2O4

141

130

244

207

11,075

357

+1.5

June

207 

181

156

126

107

108

100

109

1O6

89

85 

116

145

122

*115

89

79

62

56

93

84

144

136

111

269

186

118

108

136

96

3,639

121

+2.9

July

84 

64

62

60

60

50

54

52

46

55

76 

55

55

42

45

37

44

50

56

38

44

*30

21

22

22

37

31

27

27

4O

46

1,432

4f .2

-4.3

Aug.

38 

3535"

47

43

45

40

38

36

36

42

90

1.1OO

2,500

1,700

800

450

4,860

*52,000

9,060

3,520

2,480

1,670

1,150

850

700

600

540

470

410

37O

85,755

2,766

-30.1

Sept.

340 

320

35O

870

410

420

440

37O

350

320

37O 

430

250

180

170

150

130

12O

ISO

170

110

1OO

105

420

490

270

480

450

40O

3OO

9,465

316

-57.1

Adjusted for change in reservoir contents

Mean 

Cf sm 

In.

195 

0.903 

1.O4

833 

3.86 

4.31

Calendar year 1954 : 

Water year 1954-55 :

733 

3.39 

3.91

302 

1.40 

1.61

315 

1.46 

1.52

671 

3.11 

3.58

1,096 

5.07 

5.66

358 

1.66 

1.91

Observed

Max 3,110 Min 29 Mean 449 

Max 52,000 Min 21 Mean 647

124 

0.574 

0.64

41.9 

0.194 

0.22

2,736 

12.67 

14.61

259 

1.20 

1.34

Adjvsted

Mean 452 Cfsm 2.09 In. 28.36 

Mean 642 Cfsm 2.97 In. 40.35

Peak discharge (base, 5,100 cfs). Nov. 3 (3 p.m.) 3,280 cfs (5.65 ft); Nov. 21 (4:30 a.m.) 4,140 

cfs (6.25 ft); Dec. 18 (5 p.m.) 3,700 cfs (5.88 ft); Aug. 19 (7 a.m.) 101,000 cfs (20.3 ft).

* Discharge measurement made on this day.

t Change in contents in Otls Reservoir, equivalent in cubic feet per second, furnished by the 

Colllns Co.

Note. No gage-height record July 21 to Sept. 30; discharge estimated on basis of records for station near New Boston, Mass., Still River at Robertsville, Conn., new station above Still River at 

Riverton, Conn., and peak discharge Aug. 19. Stage-discharge relation affected by ice Jan. 20 to 

Feb. 11, Feb. 16.
CONNECTICUT RIVER BASIN 221 

Burlington Brook near Burlington, Conn.

Location. Lat 41 "47'10", long 72°57'55", on left bank l£ miles north of Burlington, Hartfora County, 3 miles upstream from mouth, and 3 miles southwest of Colllnsviile.

Drainage area. 4.12 sq mi.

Records available. September 1931 to September 1955.

Sage. Water-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. 24 years, 8.14 of s .

Extremes.--Maximum discharge during year, 1,690 cfs Aug. 19 (gage height, 9.22 ft), from 

rating curve extended above 100 cfs on basis of orij current-meter measuremert and form 

of theoretical rating; minimum, 0.30 cfs (regulated) July 24, 25 (gage height, 0.20 ft); 

minimum daily, 0.69 cfs July 24, Aug. 3.

1931-55: Maximum discharge, that of Aug. 19, 1955; minimum, 0.13 cfs (regulated) 

June 21, 1933; minimum daily, 0.64 cfs Sept. 23. 24, 27-29, 1941, Aug. 27, £8, 1949; 

minimum gage height, 0.03 ft Oct. 11, 13, 1943 (orifice plate removed).

Remarks. Records excellent except those for periods of Ice effect, which are food. 

Infrequent low water regulation.

Revisions (water years). WSP 1171: Drainage area. WSP 1301: 1933-45(M).

Rating table, water year 1954-55, except periods of Ice effect ( 

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

0.3 

0.7

1.0

1.1 

1.3 

1.7

0.53

1.85

3.11

4.55

10.3

29.0

2.5 

3.5

5.0 

7.0 

8.0

82

168

324

619

915

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

2.54

2.37

2.25

2.25

2.09

2.13

2.05

1.97

2.01

2.15

2.57

2.01

1.95

*1 .93

2.54

7.13

4.13

3.15

3.07

2.76

2.58

2.67

2.58

2.54

2.46

2.17

2.29

2.37

7.79

6 .03

96.11

3.10

0.752

0.86

Nov.

4.33

4.68

75

21.6

12.2

9.27

7.71

6.85

6.30

5.77

5.77

5.02

4.78

4.78

4.55

4.33

4.33

4.33

5.02

25.0

46.7

17.4

11.1

11.5

21.4

11.5

9.27

9.27

24.8

14.2

398.76

13.3

3.23

3.60

Dec.

10.3

8.95

8.00

7.41

7.13

6.30

be.O

5.52 G~^5

9.60

7.41

6.30

5.77

31.1

li

19.2

12.6

35.8

33.8

15.6

11.9

10.3

9.60

9.60

8.63

b7.7

7.71

8.00

12.6

32.1

20.2

455.16

14.7

3.57

4.12

Jan.

11.9

15.1

T3T8

10.7

8.95

10.3

9.93

b7.4

6.85

6.85

6.57

b6. 3

5.52

b5.0

b4.8

4.78

4.78

b4.1

3.93

b3.7

b3.4

b3.6

3.74

3.74

*3.57

3.57

3.57

b3.1

3.02

2 .62

2 ' 5a

187.77

6.06

1.47

1.70

Feb.

2.76

2.84

2.58

2.37

2T54

3.42

33.4

TTl

b5.5

5.02

13.0

b!5

b6.3

b4.3

4.13

b4.1

5.26

6.03

6.03

6.85

7.13

6,57

23.5

11.1

8.00

6.57

6.57

8.95

-

217.23

7.76

1.88

1.96

Mar.

20.0

13.4

8.32

7.41

6.57

8.95

12.2

b7.1

8.00

21.5

22.2

13.8

11.9

9.27

8.32

17.3

13.4

8.95

8.32

8.32

7.71

15.8

30.6 24~4

29.0

20.2

15.1

12.6

12.6

13 . 8

429.64

13.9

3.37

3.88

Apr.

11.9

11.1

11.5

16.9

28.4

34.0

26.4

15.6

12.2

11.5

10.7

9.60

9.60

10.7

10.7

9.6

8.95

8.95

8.63

8.32

8.32

13.4

11.1

9.93

39.1

38.3

32.8

18.2

24 .8

514.30

17.1

4.15

4.63

May

16.9

13.8

*12.6

12.2

11.5

11.9

10.7

11.1

9.93

8.95

8.63

8.32

7.71

7.71

7.13

6.57

6.85

6.57

6.03

5.26

5.02

4.78

4.78

7.41

6.57

6.57

4.55

3.74

3.42

3! 74

245.72

7.93

1.92

2.21

June

3.93

3.20

3.20

2.80

3.02

2.67

2.67

2.76

2.89

2.67

2.58

5.52

4.55

*3.11

2.67

1.37

1.77

1.81

1.77

3.94

2.54

2.99

3.10

2.83

2.91

2.29

1.89

11.4

9.33

3.40

101.58

3.39

0.823

0.92

July

2.63

1.97

1.74

1.54

1.40

1.33

1.40

1.81

1.16

1.46

2.50

1.47

1.26

1.16

1.28

1.19

1.26

1.62

Tag- 3.37

Log

1.06

.87

.eg

.80

1.02

.95

1.02

1.16

. 78 

.84

43.00

1.39

0.337

o.sg

A.g.

0.81

.75

^M.?g

.72

1.06

2.80

2.75 .g2 .g?

i.gg

s.gs

54

53

12.4

5.77

3.57

107

*673 -56

27.0

17.8

14.2

11. g

10.3

10.4

8.95

8.00

7.13

6 .85 

7.13

1,117.63

36.1

8.76

10.10

Sept.

6.57

5.77

5.52

5.26

5.02

6.85

5.02

*4.33

4.33

4.13

4.55

5.02

s.gs

3.74

3.74

3.57

3.42 3.zg

3.20

8.63

3.42 2.g?

2.89

13.1

10.2

5.77

4.33

12.7

6.85

5 02

163.14

5.44

1.32

1.52

Calendar year 1954: Max 75 Mln 1.06 Mean 7.69 Cfsm 1.87 In. 25.33

Water year 1954-55: Max 673 Mln 0.69 Mean 10.9 Cfsm 2.65 In. 35.89

Peak discharge (base, 140 cfs).--Dee. 14 (12 p.m.) 

(g.22 ft).

* Discharge measurement made on this day. 

b Stage-dlacharge relation affected by Ice.

cfs (3.78 ft); Aug. ig (4 a.m.) l,6go cfs
222 CONNECTICUT RIVER BASIN

Pequabuck River at Forestville, Conn.

Location. Lat 41°40'23", long 72°54'04", on left bank 700 ft upstream froTi station of 

New York, New Haven and Hartford Railroad at Porestville, Hartford County, a quarter of 

a mile downstream from Copper Mine Brook, and 65 miles upstream from mo'Jith.

Drainage area. 45.2 sq mi.

Records available.--July 1941 to September 1955.

Gage. Water-stage recorder. Datum of gage is 197.72 ft above mean sea level, datum of 

T929 (levels by Connecticut State Water Commission).

Average discharge. 14 years, 86.3 cfs (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 11,700 cfs Aug. 19 (gage height, 13.22 ft, from 

high-water mark in gage house), from rating curve extended above 2,100 cfs on basis of 

slope-area determinations at gage heights 7.3 and 13.22 ft; minimum, 16 cfs Aug. 10 

(gage height, 0.79 ft).

1941-55: Maximum discharge, that of Aug. 19, 1955; minimum, 6.5 cfs Sept. 31, 22, 

1941 (gage height, 0.64 ft).

Flood in September 1938 reached a stage of about 7.3 ft, from floodmarks (discharge, 

3,800 cfs, on basis of slope-area determination of peak flow and computation of peak 

flow over dam).

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

Flow regulated by Whigville Reservoir (see p. 233) and mills above station. Diversion 

for municipal water supply of city of New Britain from Copper Mine Brook.

Revisions (water years). WSP 971: 1941-42. WSP 1111: 1947.

Rating tables, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Aug. 19 

17

Aug. 19 to Sept. 30

0.8

1.0 35

1.3 75

1.7 

2.1 

2.7

166

320

650

* 1.5 

1.8 

2.1 

2.5 

3.0

34

75

150

330

660

4.0

6.0

8.0

10.0

1,160

2,490

4,300

6,750

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Ttotal

Mean

Oct.

46

41

39

42

37

35

35

35

33

32

33

33

33

33

62

82

47

42

41

*39

35

34

32

30

32

33

34

34

76

64

51

1,275

41.1 

+7.3

Nov.

46

92

*531

T94

116

88

74

69

63

59

59

57

55

52

52

52

52

52

59

220

242

133

99

110

144

106

86

84

185

119

3,350

112 

+8.6

Dec.

93

84

77

70

69

64

60

57

73

91

72

63

62

343

635

227

146

371

383

202

158

136

121

119

108

93

95

97

119

346

216

4,850

156 

+7.7

Jan.

149

T6§~ 176

133

114

126

124

93

88

88

82

75

75

68

64

64

64

60

59

55

52

55

54

*55

54

52

52

48

46

43

43

2,477

79.9 

+6.3

Feb.

46

45

43

43

43

78

-88 342

64

59

158

149

75

64

64

60

126

110

95

86

82

75

186

140

95

84

80

91

-

2,671

95.4 

+7.8

Mar.

192

160

110

104

89

170

162

108

132

178

192

158

131

116

112

156

152

112

106

93

101

274

398

271

267

223

192

155

138

133

128

5,013

162 

+ 10.1

Apr.

119

114

119

254

246

263

230

163

131

124

114

106

106

112

110

101

89

88

86

86

*80

W

88

86

220

275

246

166

360 220"

4,599

153 

+7.6

May

152

128

114

104

97

93

89

84

88

75

72

70

64

60

57

57

63

57

54

52

50

46

48

51

52

69

55

47

4548"

50

2,191

70.7 

+6.5

June

47

43

43

40

37

43

35

35

35

34

30

65

47

39

35

32

*30

27

24

73

42

39

35

49

43

33

32

34

43

32

1,176

39.2

+7.3

July

27

25

22

21

23

23

23

23

21

30

30

22

22

22

22

24

21

30

25

23

22

22

20

21

21

23

23

23

23

21

19

717

23.1 

+6.3

Aug.

22

22

21

21

21

19

25

23

20

20

58

134

395

298

93

60

52

547

*6.500

1,020

436

258

200

158

126

 98

87

81

75

69

67

11,026

356

+8.8

Sept.

64

61

56

54

51

a8o

a70

*54

a52

a50

aSO

a60

a53

a50

a48

46

44

a42

a40

aSO

a42

a38

a35

a!20 a95"

*S4

a45

a 120

a70

55

1,749

58.3 

+5.6

Adjusted for diversion and change In reservoir contents

Mean 

Cfsm 

In.

48.4 

1.07 

1.23

121 

2.68 

2.99

Calendar year 1954 : 

Water year 1954-55:

164 

3.63

4.18

86.2 

1.91 

2.20

103 

2.28 

2.37

172 

3.81 

4.39

161 

3.56 

3.97

77.2 

1.71 

1.97

Observed

Max 635 Mln 17 Mean 73.7 

Max 6,500 Mln 19 Mean 113

46.5 

1.03 

1.15

23.4 

0.650 

0.75

365 

8.08 

9.32

63.9

1.41 

1.57

Adjusted

Mean 81.3 Cfsm 1.80 In. 24.44 

Mean 120 Cfsm 2.65 In. 36.09

Peak discharge (base. 660 cfs).--Oct. 15 (10 p.m.) 695 cfs (2.80 ft); Nov. 3 (4:30 a.m.) 735 cfs 

(2.90 ft); Dec. 14 (9 p.m.) 1,120 cfs (3.73 ft); Feb. 7 (1:30 a.m.) 672 cfs (2.75 ft); Aug. 19 

(7:30 a.m.) 11,700 cfs (13.22 ft).

* Discharge measurement made on this day.

t Change In contents In Whigville Reservoir, diversion for municipal supply of city of New Britain 

from Whigville Reservoir and at Whites Bridge pumping plant, equivalent In cubic feet per second.

a No gage-height record; discharge estimated on basis of fragmentary record, 5 staff-gage readings, 

and high-water mark
CONNECTICUT RIVER BASIN 223

Salmon Brook near Granby, Conn.

Location. Lat 41°56'14", long 72°46'36", on left bank 50 ft upstream from New York, New 

Haven and Hartford Railroad bridge, 0.5 mile downstream from confluence of East Branch 

and West Branch, 1.2 mile southeast of Granby, Hartford County, and 1.9 mile upstream 

from mouth.

Drainage area. 60.6 sq mi.

Records available. July 1946 to September 1955.

Gage. Water-stage recorder. Datum of gage is 147.54 ft above mean sea level, datum of 

1929.

Average discharge. 9 years, 133 cfs.

Extremes. Maximum discharge during year, about 40,000 cfs Aug. 19, from a comparison of 

unit runoff of tributary and nearby streams; maximum gage height, 23.58 ft Aug. 19 

(prior to destruction of railroad bridge); minimum discharge, 14 cfs Aug. 5, 10 (gage 

height, 1.65 ft).

1946-55: Maximum discharge, that of Aug. 19, 1955; maximum gage height, that of 

Aug. 19, 1955; minimum, 10 cfs Aug. 26, 1949 (gage height, 1.42 ft).

Remarks. Records good prior to June 1, fair thereafter. Infrequent regulation at low

Rating tables, water year 1954-55 (gage height, in feet, and discharge,

In cubic feet per second)

(Shifting-control method used May 9 to Aug 12; stage-discharge relation affected by ice Jan. 14, 15, 18, 20, 21, 28-31. Feb. 2-4, 

9, 13, 14;'backwater from Farmlngton River Aug. 19-21)

Oct. 1 to Dec. 14 Dec. 15 to Aug. 19 Aug. 19 to Sept. 3O

1.8 

2.0 

2.5 

3.0 

4.O 

5.0

32

48

101

166

395

610

1.5 

1.7 

2.0 

2.5 

3.0 

5.0 

8.0

15

27

51

109

187

61O

1,420

4.2 

5.0 

6.0 

7.0

76

162

358

730

8.0

10.0

12.0

15.0

1,470

4,900

1O,20O

21,000

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

41 

39

39

38

38

38

38

36

37

38

*38

38

36

36

37

87

70

54

48

45

44

42

41

40

40

39

41

53

77

129

1,513

48.8

0.805

0.93

Nov.

76 

70

520

342

185

129

1O6

90

85

79

75

72

70

68

67

66

65

66

69

269

345

228

142

125

248

168

135

123

305

245

4,633

154

2.54

2.83

Dec.

158 

133

118

103

103

9O

79

80

83

103

96

87

83

216

1.100

425

275

539

609

355

260

210

183

181

162

134

131

134

163

389

355

7,137

230

3.80

4.38

Jan.

262 

273

264

214

177

183

171

133

128

128

115

101

102

86

85

88

85

77

76

74

72

72

71

*71

71

71

68

60

58

56

54

3,546

114

1.88

2.17

Feb.

51 

52

51

51

.49.

53

372

142

98

86

194

211

138

96

89

80

86

97

115

119

1O9

101

241

202

134

113

113

163

_

3,406

122

2.01

2.09

Mar.

272 

276

173

131

125

142

171

134

134

257

410

345

288

225

183

258

266

185

16O

144

144

312

550

385

375

315

291

229

208

214

7,510

242

3.99

4.60

Apr.

214 

212

204

334

415

405

365

262

212

195

183

167

162

171

171

154

142

134

126

*119

117

160

153

133

53O

695

712

395

692

492

8,426

281

4.64

5.18

May

"284

244

218

198

183

163

154

144

136

130

120

109

1O3

96

87

85

79

74

70

67

64

61

67

65

78

96

78

72

87

99

3,856

124

2.05

2.36

June

78 

68

62

58

52

50

46

47

47

46

44

68

82

61

*52

50

46

41

38

40

58

117

115

89

101

85

70

58

71

61

1,901

63.4

1.05

1.17

July

47 

42

46

4O

36

33

32

29

26

28

63

45

36

28

25

28

5O

33

28

26

25

24

22

22

22

21

20

22

23

21

19

962

31.0

0.512

0.59

Aug.

19 

17

16

16

16

17

17

19

16

16

22

62

469

387

184

97

72

1,38O

18.400

5,460

1,620

716

480

327

258

214

184

169

152

143

143

31,108

1,003

16.6

19.14

Sept.

137 

127

122

116

113

129

113

102

98

95

94

*100

91

87

82

82

83

81

84

110

88

83

81

152

17O

123

103

142

126

110

3,224

107

1.77

1.98

Calendar year 1954: Max 1,100 Mln 26 Mean 115 Cfsm 1.86 In. 25.33

Water year 1954-55: Max 18,400 Mln 16 Mean 212 Cfsm 3.50 In. 47.42

Peak discharee (base, 1,000 cfs).-

1,120 cfs (6.95 ft); Aug. 19 (10 a.m

-Dec. 15 (4:15 a.m.) 1,820 cfs (9.26 ft); Dec. 18 (9:40 p.m.) 

) about 40,000 cfs.

* Discharge measurements made on this day.
CONNECTICUT RIVER BASIN

Farmington River at Rainbow, Conn.

Location.- -La t 41°54'4l", long 72°41'16", on left bank at Rainbow, Hartfcrd County,

300 ft from Stevens Paper Mill, 0.4 mile downstream from Farmington River Power Co.

dam, 1.3 miles upstream from Poquonock, 6.4 miles downstream from Salrron Brook, and

8 miles upstream from mouth. 

Drainage area. 584 sq mi. 

Records available. August 1928 to September 1955. Prior to 1940, published as "at

Tariffville". 

Gage . Water-stage recorder. Datum of gage is 35.36 ft above mean sea level, datum of

1929. Prior to July 1, 1939, at site 5j miles upstream at datum 94.85 ft higher. 

Average discharge. 27 years, 1,073 cfs (adjusted to present site; adjusted for storage

and diversion) . 

Extremes . --Maximum discharge during year, 69,200 cfs Aug. 19 (gage height, 23.5 ft, from

floodmarks), by computation of flow over Rainbow dam; minimum daily, 150 cfs Jan. 30,

July 10.

1928-55: Maximum discharge, that of Aug. 19, 1955; minimum daily, 5.1 cfs Mar. 5,

1944, Oct. 28, Nov. 11, 1945, and Feb. 22, 1947. 

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

good. Flow regulated by powerplant , by Otis, Barkhamsted, East Branch, Nepaug and

Whigville Reservoirs, having a combined capacity of about 6,450,000,00? cu ft (see

P. 232), and by diversions for domestic water supply from Barkhamsted, Nepaug and

Whigville Reservoirs and Whites Bridge pumping plant.

Revisions (water years) .--WSP 851: 1936. WSP 1171: Drainage area. WSP 1051: 1945(m) . 

WSP 1301: 1937-43 (adjusted (a figures of monthly and yearly discharge aid runoff).

Rating tables, water year 1954-55 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Aug. 19 Aug. 20 to Sept. 30

1.1 132

1.5 350

2.0 74O

2.5 1,250

3.0 1,840

13.0

19.0

4,870

8,800

13,500

24,000

45,700

1.3 

1.6 

2.0 

3.0

168

320

590

1,480

4.0 2,630

6.0

9.0

13.0

19.0

22.0

5,680

12,100

23,500

45,700

61,000

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tbtal

Mean

(t)

Oct.

442 

474

349

404

466

624

416

456

450

474

*298

202

476

630

662

589

878

630

713

719

*730

558

745

379

450

436

639

618

920

780

950

17,557

566

-79

Nov.

780 

780

1,600

4.000

2,6OO

2,100

1,200

1,200

1,150

750

900

900

800

750

480

950

900

950

950

1,270

2,300

3,710

2,510

2,020

1,700

1,750

1,640

860

*1,420 

1,850

44,770

1,492

+250

Dec.

1,970 

1,540

1,090

1,050

720

880

700

950

1,250

1,100

1,400

1,000

650

1,300

3,500

3.700

2,400

2,200

3,500

3,200

2,520

1,660

1,660

1,560

1,280

980

925

1,150

1,300

1,660

2,270

51,065

1,647

+255

Jan.

2.150 

1,640

1,660

1,650

1,610

1,320

1,120

1,170

773

952

979

813

850

823

720

616

588

111

774

769

642

662

746

598

506

*466

456

461

361 

 393 150

27,195

877

+58

Feb.

392 

488

261

322

384

379

1,370

1,560

1,110

782

772

1.580

1,060

810

814

613

705

794

964

666

728

708

996

1,470

1,490

1,090

622

776

-

23,706

847

+73

Mar.

1,520 

1,860

1,820

1,500

79O

1,060

1,110

1,170

782

974

1,830

2,450

2,300

1,970

1,550

1,450

1,570

1,970

1,500

1,020

1,310

1,460

2,310

2,500

2,500

2,500

2,140

1,970

1,550

1,470

1,370

51,276

1,654

+239

Apr.

1,480 

1,560

1,680

2,230

2,430

2,530

3,220

3,140

2,640

2,100

1,970

1,970

1,970

1,700

1,570

1,670

1,730

1,550

1,240

1,390

1,170

1,160

1,430

1,310

1,740

3,850

4.920

4,410

3,660 

4,440

67,860

2,262

+141

May

5.670 

2,630

*2,360

1,840

1,860

1,560

1,540

1,330

1,360

1,070

1,060

1,020

893

524

810

690

836

710

70S

667

492

458

486

602

634

718

628

659

568 

'649 333

33,365

1,076

+39

June

642 

707

603

320

332

492

418

477

514

531

404

402

531

538

*560

520

370

280

240

370

450

600

636

691

452

456

536

492

435 

482

14,481

483

-28

July

377 

3*2

418

198

3?2

204

*2<4

235

190

150

231

440

2M

270

300

2'0

230

220

230

350

3?0

370

250

2130

220

250

430

330

300 

200

300

8,721

231

-61

Aug.

215 

205

215

550

300

^30

^90

420

230

230

310

805

1,700

2,500

4,500

2,600

1,800

1,850

*45,100

56.700

27,600

13,800

8,460

5,520

4,870

2,500

1,600

1,450

1,250 

1,450

1,160

190,410

6,142

+309

Sept.

1,160 

1,090

1,010

924

944

1,130

850

948

828

734

652

*885

740

654

660

578

264

365

1,090

290

194

466

368

111

988

1,550

664

1,040

945 

932

23,520

784

-20

Adjusted for diversion and change in reservoir contents

Mean

Cfsm 

In.

487 

0.834 

0.96

1,742 

2.98 

3.32

Calendar year 1954: 

Water year 1954-55:

1,902 

3.26 

3.76

935 

1.60 

1.84

920 

1.58 

1.64

1,893 

3.24 

3.74

2,403 

4.11 

4.59

1,115 

1.91 

2.20

Observed

Max 4,520 Min 102 Mean 950 

Max 56,700 Min 150 Mean 1,518

455 

0.779 

0.87

220 

0.377 

0.43

6,451 

11.0 

12.68

764 

1.31 

1.46

Adjusted

Mean 1,080 Cfsm 1.85 In. 25.08 

Mean 1,616 Cfsm 2.77 in. 37.49

* Discharge measurement made on this day.

t Change in contents in Otis, Barkhamsted, East Branch, Nepaug and Whigville Reservoirs, and diversion from Barkhamsted, Nepaug and Whigville Reservoirs and Whites Bridge pumping plant, equivalent 

in cubic feet per second; furnished by Colllns Co., Water Bureau of Hartford Metropolitan District 

Commission, and Board of Water Commissioners of New Britain.

Note.--No gage-height record Oct. 29 to Nov. 19. Dec. 4-20, June 15-22, July 9, 10, 12, 15-31, 

Aug. 1-30; discharge computed on basis of records furnished by Farmington River Power Co.
CONNECTICUT RIVER BASIN 225

South Branch Park River at Hartford, Conn.

Location. Lat 41°44'02", long 72°42'51", on left bank at upstream side of bridge on Newfield Avenue in Hartford, Hartford County, 0.7 mile downstream from confluerce of 

Trout Brook and Piper Brook, and 3.3 miles upstream from confluence with North Branch.

Drainage area. 40.6 sq mi.

Records available. October 1936 to September 1955.

Gage. Water-stage recorder. Datum of gage is 31.07 ft above mean sea level, tfatum of 

1929 (levels by Department of Engineering, city of Hartford).

Average discharge. 19 years, 72.8 cfs.

Extremes. Maximum discharge during year, 7,000 cfs Aug. 19, from rating curve extended 

above 800 cfs on basis of records for North Branch Park River and Park River at Hartford; maximum gage height, 19.65 ft Aug. 19, from floodmark; minimum discharge, 11 cfs 

Aug. 7 (gage height, 1.50 ft).

1936-55: Maximum discharge, that of Aug. 19, 1955; minimum, 7.3 cfs Oct. 6, 1941 

(gage height, 1.31 ft); minimum daily, 9.4 cfs, Oct. 6, 1941.

Flood of Mar. 12, 1936, reached a stage of 12.1 ft, as determined by Hartford city 

engineers from floodmarks.

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

Some regulation by mills and reservoirs above station.

Revisions (water years). WSP 1201: 1939-40(P), 1941(M) , 1943-44(P) , 1950.

Rating tables, water year 1954-55, except periods of ice effect (gage height,

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

(Backwater from debris Aug. 21, 22)

Oct. 1 to Dec. 15

Note.--Same as 

following table 

above 3.8 ft.

Dec. 16 to Ma

1.8 

2.5 

3.8

23 to Sept. 30

24

53

115

Note.--Same as 

following table 

above 3.8 ft.

1.6 

2.0 

4.0 

6.0

13

23

125

270

7.0

11.0

15.0

18.0

465

1,580

3,500

5,500

Discharge, in cubic feet tember 1955

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

Tota]

Mean

Cfsm

In.

Oct.

52

49

46

*47

48

47

46

45

43

43

54

60

56

54

49

110

62

59

45

36

35

34

45

45

47

49

50

40

91

71

52

1,610

51.9

1.28

1.48

Nov.

51

54

383

164

80

69

62

62

66

51

48

54

47

44

54

*46

48

61

59

241

176

110

88

92

164

88

80

77

186

115

2,920

97.3

2.40

2.68

Dec.

92

82

77

67

64

*72

47

46

54

80

50

48

54

182

*716

186

115

284

342

164

125

1O8

98

93

86

77

86

86

10O

317

160

4,158

134

3.30

3.8O

Jan.

100

131

*122

105

91

115

108

86

79

74

74

68

68

72

39

34

38

42

44

41

41

34

30

39

b41

36

31

b40

29

24

30

1,906

61.5

1.51

1.74

Feb.

*31

37

36

35

£8

30

b2OO

67

50

49

blOO

b!40

64

60

63

48

151

118

79

67

7O

65

148

122

91

81

79

98

_

2,207

78.8

1.94

2.02

Mar.

*193

168

95

98

.Si

178

212

110

122

152

143

131

120

115

108

149

131

112

118

110

118

412

425

206

173

170

176

140

128

122

115

4,841

156

3.84

4.43

Apr.

*103

96

1O6

29O

190

140

134

103

93

93

87

84

71

69

66

56

52

64

54

53

52

77

59

54

149

140

164

87

227

149

3,162

105

2.59

2.89

May

98

*84

65

62

62

67

54

56

56

52

46

46

42

37

34

38

59

56

50

46

40

36

46

48

44

36

34

31

27

36

40

1,528

49.3

1.21

1.40

June

*32

30

29

27

24

27

27

29

30

29

24

52

35

32

29

27

24

21

19

.so

32

53

34

46

38

27

27

33

29

31

957

31.9

0.786

0.88

July

*23

18

15

25

22

20

23

22

21

27

26

24

18

22

17

23

15

21

22

18

19

16

14

3O

23

20

18

19

18

14

14

627

20.2

0.498

0.57

Aug.

15

*18

19

19

28

22

23

42

24

25

43

162

345

188

56

36

31

466

*5,08O

2,230

40O

178

128

110

105

85

65

60

50

40

45

10,138

327

8.O5

9.28

Sept.

60

55

*55

55

55

67

64

47

34

27

85

75

53

44

46

46

38

31

40

100

65

55

48

145

170

51

49

145

74

42

1,921

64. O

1.58

1.76

Calendar year 1954: Max 828 Min 18 Mean 73.5 Cfsm 1.81 In. 24.57

Water year 1954-55: Max 5.O80 Min 14 Mean 98.6 Cfsm 2.43 In. 32.93

Peak discharee (base, 55O cfs). De

(8 p.m.) 64O cfs J7.48 ft at 12 p.m.

c. 15 (3:30 a.m.) 1.O6O cfs (9.18 ft at 6:30 a.m.); Dec. 18 

; Mar. 22 (11 p.m.) 715 cfs (7.9O ft at 1 a.m. Mar. 23);

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. Ho gage-height record 8 a.m. Aug. 19 to 9 a.m. Aug. 21; discharge estimated from graph 

based on 4 stage observations, high-water mark, and records for stations on North and So'ith Branches. 

No gage-height record 9 a.m. Aug. 23 to noon Sept. 6; discharge estimated on basis of 1 discharge 

measurement, weather records, and records for stations on North and South Branches.
226 CONNECTICUT RIVER BASIN

North Branch Park River at Hartford, Conn.

Location.--Lat 41°47'03", long 72°42'3l" ) on right bank 60 ft downstream from stone-arch 

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 1955.

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. 19 years, 37.9 cfs.

Extremes. Maximum discharge during year, 10,000 cfs Aug. 19, from rating curve extended 

above 1,600 cfs on basis of slope-area determination of peak flow in reach 2.6 miles 

upstream; maximum gage height, 18.8 ft Aug. 19, from floodmark; minimum discharge, 

0.5 cfs Aug. 7 (gage height, 0.85 ft).

1936-55: Maximum discharge, that of Aug. 19, 1955; minimum, 0.04 cfs Sept. 24, 25, 

1943 (gage height, 0.75 ft); minimum daily, 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).

Remarks. Records good. Some regulation by mills upstream and by storage and diversion at 

Hartford water-supply reservoirs above station.

Revisions (water years). WSP 891: 1939. WSP 1201: 1937(M) , 1938. 1939(M) , 1940, 

19411M), 1942(P), 1943, 1944(M) , 1945, 1946(P) , 1947(M) , 1948-49(P) , 1950.

Rating tables, water year 1954-55, except periods of Ice effect (gage

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

(Backwater from debris on control June 7-10, July 12, 13, 28-31, 

Aug. 1, 2, Sept. 24-30)

Oct. 1 to Aug. 18

0.9 

1.1 

1.3 

1.5

1.7

0.7

2.0

4.0

7.3

12

2.0 

2.3 

2.6 

3.7 

6.0

107

380

830

1.5 

1.7 

2.0 

2.3 

2.7

Aug. 19 to Sept. 30

7.8 3.5

14 6.0

31 8.0

64 12.0

140 16.0

340

830

1,400

3,350

6,550

Note.--Same as following table above 6.0 ft. 

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

8.7

8.7 

7.1

*7.1

6.7

6.3

5.9

5.7

5.7

5.9

6.3

5.9

5.3

5.1

5.3

20

17

11

8.9

8.3

7.5

6.9

6.5

6.3

6.1

5.9

6.3

6.5

18 

31

18

279.9

9.03

0.357

0.41

Nov.

12

*11 

179

89

35

23

18

15

14

12

12

12

12

11

11

10

10

11

12

196

118

55

31

36

116

45

29

28

150 

64

1,377

45.9

1.81

E.02

Dec.

35

27 

*22

18

17

b!2

12

11

13

32

25

b!7

16

133

509

130

61

214

249

74

42

37

32

35

b31

24

22

26

45 

294

112

2,327

75.1

2.97

3.42

Jan.

52

84

*81

50

35

53

ID 58

b39

24

23

20

17

15

b!2

12

12

12

11

10

9.5

8.5

9.2

9.8

10

9.8

9.5

9.2

7.9

7.9

6.7 

6.5

724.3

23.4

0.925

1.07

Feb.

*6.9

6.9 

6.3

5.9

679

9.3

b!50

b49

b21

16

b35

b!30

b39

20

16

14

58

95

63

39

29

26

109

68

b33

26

28

49

-

1,155.2

41.3

1.63

1.70

Mar.

*131

101 

50

33

31

58

93

b59

b72

152

138

85

74

52

44

93

82

42

36

35

35

347

402

107

74

74

91

52

42

39 

35

2,759

89.0

3.52

4.06

Apr.

*32

31 

28

226

132

63

74

45

34

31

28

23

24

29

30

26

21

21

20

20

18

36

34

26

135

158

212

70

238

123

1,993

66.4

2.62

2.92

May

64

*49 

43

38

116

-61 144

47

44

37

35

31

28

27

26

26

25

11

7.9

8.7

8.1

8.3

8.5

9.2

8.9

10

9.5

8.3

7.9

g]2

965.0

31.1

1.23

1.42

June

»8.3

7.5 

7.1

6.3

6.7

6.3

5.5

5.7

6.1

6.9

6.3

12

13

9.2

7.7

6.1

4.7

3.7

lii

13

8.9

18

13

9.5

11

8.3

6.1

4.7

12

7.7

244.7

8.16

0.323

0.36

July

*4.8

3.5 

3.0

2.5

2.5

4.4

9.4

3.7

2.7

2.4

7.5

4.6

3.9

3.1

2.4

2.9

3.5

4.5

4.0

3.1

2.2

1.7

1.5

2.6

3.4

3.9

8.0

2.7

2.8

2.6

1.7

111.5

3.60

0,142

0.16

Aug.

1,15

*1.1 

1.0

.9

.8

..75

1.2

2.3

2.2

1.3

5.4

45

168

118

39

13

8.3

459

*6,460

2,510

390

114

62

40

31

26

23

23

18

16 

17

10,598.40

342

13.5

15.56

Sept.

16

*15 

14

13

13

14

12

10

9.4

9.2

15

14

10

9.4

9.7

9.7

9.2

8.1

8.7

36

12

10

16

31

36

15

16

28

19 

12

450.4

15.0

0.593

0.66

Calendar year 1954: Max 509 Mln 1.1 Mean 32.6 Cfsm 1.29 In, 17.50

Water year 1954-55: Max 6,460 Mln 0.75 Mean 63.0 Cfsm 2.49 In, 33.76

Peak discharge (base. 500 efs). Dee. 15 (3:30 a.m.) 766 cfs (5.64 ft at 5 a.m.),- Dec. 18 (10 p.m.) 

524 cfs (4.39 ft at 11 p.m.): Mar. 22 (lO:30 p.m.) 774 cfs (5.64 ft at 12 p.m.),- Aug. 19 (11 a.m.) 

10,000 cfs (18.8 ft at 12 m.).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note. No gage-height record Aug. 19-26; discharge estimated from graph based on partial record, 

3 stage observations in vicinity of gage, high-water mark, and recorded recession from flood peak of 

Sept. 21, 1938.
CONNECTICUT RIVER BASIN 227

Park River at Hartford, Conn.

Location.--Lat 41°45'36", long 72°41'42", on left bank at downstream side of plate-girder 

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 conduit, and 2.0 miles upstream from mouth.

Drainage area. 74.0 sq mi.

Records available. October 1936 to September 1955.

Gage. Water-stage recorder above spillway of timber dam. Datum of gage is 27.13 ft above 

mean sea level, datura of 1929 (levels by Department of Engineering, city of Hartford).

Average discharge. 19 years, 121 cfs.

Extremes. Maximum discharge during year, 16,200 cfs Aug. 19 (gage height, 16.36 ft, from 

floodmark in gage house), from rating curve extended above 3,600 cfs on basis of slopearea determination of peak flow; minimum, 15 cfs July 24, Aug. 1, 7; minimum gage 

height, 2.28 ft Aug. 7.

1936-55: Maximum discharge, that of Aug. 19, 1955; 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.

Remarks. Records good. 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 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Of sm

In.

Oct.

59

56

51

*49

49

49

49

49

49

47

62

70

65

68

59

139

88

70

59 

47

45

42

51

53

53

59

62

51

126

136 

82

1,994

64.3

O.869

1.00

Nov.

68

*68

540

353

139

1O4

85

79

82

70

68

70

70

59

65

62

62

82

79 

420

365

187

127

130

322

143

117

111

371

231

4,729

158

2.14

2.39

Dec.

143

117

1O8

91

85

*91

64

59

^9

120

82

67

69

216

*1.270

425

205

406

760 

291

194

163

143

143

140

1O8

114

120

153

*565

375

6,956

224

3.03

3.49

Jan.

177

212

239

173

140

180

198

136

117

105

105

94

91

91

64

54

54

57

59 

57

52

5O

43

50

54

52

45

52

45

M

36

2,916

94.1

1.27

1.46

Feb.

*41

43

43

43

58

38

*405

T27

75

67

118

354

111

82

80

64

2OO

244

156 

1O8

100

94

248

221

133

108

102

140

_

------

3,583

128

1.73

1.80

Calendar year 1954: Max 1,270 Min 2O

Mar.

*359

319

160

136

124

260

375

180

184

318

313

235

205

177

156

248

240

163

163 

149

160

593

1.020

380

274

254

304

209

ISO

170

156

8,164

263

3.55

4.O9

Apr.

*143

13O

136

370

430

220

227

163

130

124

124

114

105

105

105

91

80

88

80

77

80

114

105

85

287

291

465

187

490

336

5,482

183

2.47

2.76

Mean 115

May

191

*156

124

111

153

258

130

105

105

94

85

80

75

69

64

67

88

72

62 

59

54

50

54

62

59

50

48

43

38

41

52

2,699

87.1

1.18

1.36

June

*43

38

36

34

32

34

34

36

41

41

36

69

54

45

36

36

32

28

1

5O

75

57

59

59

41

34

43

45

45

1,319

44.0

0.595

0.66

July

*32

24

21

26

28

26

38

28

26

28

36

32

26

28

24

32

21

30

24 

21

22

19

16

34

38

24

28

24

21

19

18

814

26.3

0.355

0.41

Aug.

18

,21

22

24

34

34

26

52

30

30

55

270

530

368

114

62

5O

697

»9,800 

6,98O

926

320

212

173

155

138

101

98

84

61 

68

21,553

695

9.39

10.83

Sept.

84

*82

76

76

73

87

82

63

47

41

116

100

71

61

59

61

54

47

52 

152

98

82

73

195

289

92

73

205

115

63

2,769

92.3

1.25

1.40

Cfsm 1.55 In. 21. 08

Water ater year year 1954-55: j.bt>4-bb: Max max 9.80O S.80O Min Min 16 J.D Mean Mean J.YO 173 ursm Cfsm c.ot 2.34 In. in. 31.65 oj..oa

leak discharge (base. 1.OOP cfs). Dec. 15 (9 a.m.) 1,67O cfs (5.69 ft); Dec. 19 (3 a.m.) 1.03O 

fs (4.70 ft); Mar. 23 (3:3O a.m.) 1.46O cfs (5.39 ft); Aug. 19 (6 p.m.) 16,200 cfs (16.36 ft).

* Discharge measurement made on this day.

Note. No gage-height record Aug. 19-23; discharge estimated from gage-height graph based on 

1 stage observation, high-water mark, stage data furnished by engineers of city of Hartford, and 

records for North and South Branches.
CONNECTICUT RIVER BASIN 

Hockanum River near East Hartford, Conn.

Location.--Lat 41°46'59", long 72°35'16", on left bank 700 ft downstream from dam at Case 

Bros. Inc. paper mill, 1-j miles downstream from Hop Brook, and 2f miles east of East 

Hartford, Hartford County.

Drainage area.--74.5 sq mi.

Records available.--September 1919 to September 1921, July 1928 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 54.5 ft above mean sea levsl, datum of 

1929 (levels by Department of Engineering, city of Hartford).

Average discharge.--29 years, 116 cfs (adjusted for storage).

Extremes.--Maximum discharge during year, 2,740 cfs Aug. 19 (gage height, 10.46 ft); minimum, 27 cfs Oct. 24 (gage height, 1.21 ft); minimum daily, 29 cfs Oct. 24.

1919-C1, 1928-55: Maximum discharge, 5,160 cfs Sept. 21, 1938 (gags height, 13.78 

ft, from floodmark), by computation of flow over dam Just above gage; practically no 

flow at times caused by regulation; minimum daily, 1.2 cfs Sept. 2, 1930.

Remarks.--Records excellent. Flow regulated by Shenipsit Lake (see p. 23?), other small 

reservoirs and industrial plants upstream.

Revisions (water years) . WSP 781: Drainage area. WSP 851: 1934(M), 1936(M). WSP 1051: 

1920-21 and 1928-45 (monthly and yearly discharge and runoff). WSP 1201: 1920(M), 

1929(M), 1931, 1932-34(m), 1944.

Rating table, water year 1954-55 (gage height, in feet, and 

discharge, in cubic feet per second)

1.2 

1.5 

2.0 

3.0

26

54

104

244

5.0 

7.0 

9.0

650

1,210

1,950

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

135

55

82

132

88

79

81

107

47

33

90

101

87

87

119

60

42

89

*89

89

89

88

*41

29

67

82

94

94

128

67

91

2,562

82.6

-9.3

Nov.

137

96

348

294

215

95

116

147

94

130

93

134

60

65

124

101

94

102

107

164

233

221

155

147

129

146

134

127

225

191

4,425

148

+21.0

Dec.

156

138

133

58

?T

142

131

128

163

168

114

131

154

192

505

330

242

246

430

296

236

218

199

187

179

165

186

179

194

293

283

6,265

202

+5.9

Jan.

212

217

245

200

195

204

236

157

164

191

164

160

159

155

87

128

165

98

96

97

134

52

63

120

97

95

94

90

49

69

105

4,298

139

-11.7

Feb.

*82

81

80

86

40

63

287

T?T

122

95

144

167

120

145

95

100

178

184

83

106

148

112

182

190

171

68

104

164

_

3,571

128

+6.4

Mar.

198

205

157

166

70

171

277

158

153

191

210

148

157

193

140

179

190

167

86

124

204

236

410 59~5

240

179

214

226

194

193

186

5,917

191

+29.1

Apr.

170

104

148

287

260

265

252

190

202

181

212

136

171

193

176

89

126

188

.153

134

144

176

80

1ST

261

240

354

321

411

35T

6,096

203

+3.5

May

270

271

217

200

*196

266

146

175

231

157

153

152

160

76

90

133

150

108

103

86

89

90

111

101

96

94

97

7078"

80

111

4,357

141

-9.3

June

98

94

89

68

68

92

88

88

70

63

66

68

138

121

68

58

54

54

49

93

96

227

156

*84

56

52

130

132

56

69

2,645

88.2

-15.5

July

82

54

49

46

45

47

71

65

63

58

57

57

59

58

59

65

65

~S3 114

86

96

84

64

58

58

72

73

80

77

47

46

2,044

65.9

-19.6

Aug.

47

58

68

73

58

56

49

50

67

77

86

128

248

381

240

109

106

178

1,760

1,200

810

605

469

377

284

256

219

238

244

210

203

8,954

289

+20.3

Sept.

209

228

156

173

128

163

150

164

158

100

159

193

111

107

113

132

75

68

ITT

144

124

99

106

94

160

185

100

146

111

133

4,106

137

-23.2

Adjusted for change in contents in Shenipsit Lake

Mean 

Cfsm 

In.

73.3 

0.984

1.13

169 

2.27 

2.53

Calendar year 1954: 

Water year 1954-55:

208 

2.79 

3.22

127 

1.70

1.96

134 

1.80 

1.87

220 

2.95 

3.40

206 

2.77 

3.09

132 

1.77 

2.04

Observed

Max 564 Min 29 Mean 119 

Max 1,760 Min 29 Mean 151

72.7 

0.976 

1.09

46.3 

0.621 

0.72

309 

4.15 

4.78

114 

1.53 

1.71

Adjusted

Mean 120 Cfsm 1.61 In. 21.86 

Mean 151 Cfsm 2.03 In. 27.54

, . --. .. 

* Discharge measurement made on this day. 

t Change in contents, equivalent in cubic feet per se 

vllle Water & Aqueduct Co.

ond, in Shenipsit Lake; furnished by Rock-
CONNECTICUT RIVER BASIN 

Salmon River near East Hampton, Conn.

229

Location. Lat 41°33 T ll", long 72°26'57", on right bank at Old Comstock Bridge, a short 

distance downstream from New London-Middlesex County line, 0.6 mile downstream from 

Dickinson Creek and 3^ miles southeast of East Hampton, Middlesex County.

Drainage area.--lu5 sq mi.

Records available .--July 1928 to September 1955.

~Gage. --Water-stage recorder. Datum of gage is 69.50 ft above mean sea level, datum of 

Average discharge . --27 years, 178 cfs.

Extremes . --Maximum discharge during year, 4,870 cfs Aug. 19 (gage height, 6.02 ft); minimum, 6.8 cfs Aug. 4, 5, 6 (gage height, 0.47 ft).

1928-55: 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.

Remarks . Records good except those for periods of ice effect, which are fair. Slight regulation at low flow by mills upstream.

Revisions (water years ) .--WSP 1201: 1929.

Rating tables, water year 1954-55, except periods of lee effect 

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

(Shifting-control method used Oct. 1 to Dec. 14)

Oct. 1 to Aug. 19 Aug. 20 to Sept. 30

0.4 

.5 

.7 

.9

1.2

4.2 1.5 

2.0 

3.0 

4.0 

5.3

197

380

1,020

2,040

3,790

0.9 

1.2 

1.5

2.0 365

3.0 1,020

4.0 2,040

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Oct.

104

101

93

91

84

79

74

70

70

69

68

68

66

64

63

16 151

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

141

*102

84

77

73

69

65

63

60

60

65

95

158

248 

T90

2,865

92.4

0.880

1.01

Nov.

144

122

1,440

736

431

324

258

223

204

187

173

168

160

152

147

140

140

140

142

548

643

*405

289

269

431

327

260

245

383

354

9,585

320

3.05

3.40

Dec.

271

231

208

182

182

168

b!47

bW

b!52

238

210

173

158

381

1,700

766

465

918

1,440

*675

475

402

364

364

340

285

274

282

376

766 

640

13,380

432

4.11

4.74

Jan.

435

430

435

360

304

332

360

285

260

243

223

203

203

*164

173

b!60

b!50

b!40

b!30

b!20

bllO

b!20

b!20

b!20

b!20

b!20

bllO

b90

b90

b75

b65

6,250

202

1.92

2.21

Feb.

b65

b65

b60

*b70

b70

b85

b590

328

210

179

299

530

256

200

179

170

355

360

263

226

213

197

274

308

246

207

207

229

-

6,441

230

2.19

2.28

Mar.

360

412

300

348

328

494

628

380

332

332

328

308

293

267

246

316

340

270

243

236

246

555

1,160

*580

455

412

416

340

293

274 

256

11,748

379

3.61

4.16

Apr.

243

229

246

520

500

372

360

300

253

236

223

210

207

*219

239

229

207

197

191

182

173

223

229

200

274

304

368

293

675 

525

8,627

288

2.74

3.06

May

352

278

246

223

264

440

320

282

296

243

213

194

176

161

150

136

170

153

131

113

103

96

89

91

85

83

123

101

83

119" 78 

5,592

180

1.71

1.97

June

159 TOB"

85

72

72

64

68

64

63

59

50

153

156

94

*70

54

42

35

33

108

78

64

50

47

78

74

59

55

63

47

2,224

74.1

0.706

0.79

July

36

31

28

25

21

19

50

41

27

21

35

23

18

16

15

14

16

14

13

14

11

10

8.7

12

24

19

15

12

14

12

10

624.7

20.2

0.192

0.22

Aug.

8.7

7.9

7.2

772

7.2

9.6

11

66

44

23

17

127

757

771

316

161

95

194

3,650

1,670

601

336

605

439

269

194

162

156

128

111

116

11,066.8

357

3.40

3.92

Sept.

128

113

100

89

78

80

74

65

58

54

58

, 76

*65

53

50

48

43

42

40

78

89

56

45

192

356

185

113

229

221

143

3,021

101

0.962

1.07

Calendar year 1954: Max 2,590 Min u Mean 210 Cfsm 2.00 In. 27.19

Water year 1954-55: Max 3,650 Min 7.2 Mean 223 Cfsm 2.12 In. 28.83

Peak discharge (base, 1,500 cfs).--Nov. 3 (10 a.m.) 1,980 cfs (3.94 ft); Dec. 15 (5 a.m.) 2,160 

cfs (4.10 ft); Dec. 18 (11 p.m.) 2,100 cfs (4.05 ft); Mar. 23 (3 a.m.) 1,470 cfs (3.48 ft); Aug. 19 

(1 p.m.) 4,870 cfs (6.02 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.
o 30 CONNECTICUT RIVER BASIN

Eightmile River at North Plain, Conn. 

(Formerly published as West Branch Eightmile River at North Plain, Ccrm.)

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 County, 500 ft downstream from Strongs Brook, 

0.8 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 1955. Prior to October 1938 published as 

West Branch Eightmile River near North Lyme. October 1938 to September 1954 published 

as West Branch Eightmile River at North Plain.

Gage.--Wire-weight gage and, since Nov. 7, 1952, crest-stage indicator; gage read once 

(Tally. 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.--18 years, 39.6 cfs (adjusted to present site).

Extremes. Maximum discharge during year, 805 cfs Dec. 18 (gage height, 5.89 ft); minimum, 

0.8 cfs Aug. 5-7; minimum gage height, 1.70 ft Aug. 7.

1937-55: 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 througr submerged hignway bridge; minimum observed, 0.05 cfs Sept. 12, 1944 (gage height, 1.60 ft).

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

Revisions (water years). WSP 1141: 1948. WSP 1331: 1940-4l(M), 1943(M), 1948(M), 

iat>HM), i9t>2-b3lP).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Dec. 30, 

Aug. 19 to Sept. 30 Dec. 31 to Aug. 19

2.0 

2.3 

2.5 

3.0

3.5 

4.0 

5.0 

5.5

120

215

427

605

1.7 0.8

1.8 1.9

1.9 3.6

2.1 9.3

2.4 24

2.8 54

3.4 123

4.1 247

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

21

20

18

18

17

16

15

14

14

14

14

14

14

13

13

24

20

*16

15

14

14

13

12

T?

12

12

12

15

24

f9~ 56 

545

17.6

0.946

1.09

Nov.

32

40

427

T55

135

101

74

65

55

50

44

42

39

37

33

32

33

31

34

160

155

101

74

*79

128

90

70

70

107

84

2,617

87.2

4.69

5.23

Dec.

70

59

53

46

46

42

39

b35sens

70

48

37

150

300

155

100

310 "2~50"

175

120

*101

84

101

79

74

65

60

90

154

3,299

106

5.70

6.57

Jan.

110

~90 116

78

73

84

90

68

68

58

54

50

47

b37

b41

37

b35

b33

33

b30

b25

b26

b26

b26

*26

25

25

b!8

18

15

ii

1,476

47.6

2.56

2.95

Feb.

14

14

13

*b!5

15

24

227

78

63

51

90

140

84

*b65

55

47

102

84

65

57

54

51

63

64

55

50

46

53

-

1,739

62.1

3.34

3.48

Mar.

67

69

56

84

77

102

:so

90

78

71

67

59

58

53

*50

96

78

64

58

56

68

215

237 136-

102

95

96

78

67

63 

56

2,670

86.1

4.63

5.34

Apr.

53

50

53

130

10?

78

84

69

57

52

49

*43

46

48

51

48

42

39

39

36_

36

45

45

39

54

63

57

44

90

78

1,720

57.3

3.08

3.44

May

64

53

47

42

40

43

41

43

41

36

31

28

25

25

23

20

20

20

18

17

15

15

15

16

14

15

19

16

13

13 

18

846

27.3

1.47

L.70

June

37

?5

21

17

17

14

18

16

14

12

11

24

27

18

13

*11

8.3

8.0

7.1

9.3

8.3

9.7

6.7

7. 1

9.0

11

8.0

9.0

7.4

6.7

410.6

13.7

0.737

0.82

July

4.8

3.8

3.2

3.2

2.8

3.6

6.1

15

15

7.4

7.1

4.3

3.6

3.0

2.8

3.8

5.0

3.6

*3.0

2.7

2.2

2.2

2.2

2.5

3.8

2.8

1.9

2.7

2.2

1.7 

1.6

124.6

4.02

0.216

0.25

Aug.

1.5

1.4

1.1

1.0

_._§

.8

.8

12

7.4

2.7

1.9

32

122

168

72

36

24

46

479 ?2~0

95

59

162

122

70

48

38

36

28 

22

23

1,933.4

62.4

3.35

3.86

Sept.

41

28

23

20

18

16

14

12

11

10

10

9.6

*8.4

7.7

7.7

7.1

7.1

6.2

5.9

14

18

11

9.2

99

169

65

40

89

70

43

889.9

29.7

1.60

1.78

Calendar year 1954: Max 440 Min 1.8 Mean 47.9 Cfsm 2.58 In. 34.89

Water year 1954-55: Max 479 Min 0.8 Mean 50.1 Cfsm 2.69 In. 36.51

Peak discharge (base. 550 Cfs).--Nov 3 (about 4 a.m.) 700 cfs (5.73 ft); Dec. 14 (about 10 p.n 

605 cfs (about 5.5 ft); Dec. 18 (about 7 p.m.) 805 cfs (5.89 ft); Feb. 7 (about 7 a.m.) 376 cfs 

(4.67 ft); Mar. 22 (about 11 p.m.) 353 cfs (4.55 ft); Aug. 19 (about 7 a.m.) 750 cfs (5.80 ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.
CONNECTICUT RIVER BASIN 231

East Branch Eightmlle River near North Lyme, Conn.

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^ miles upstream 

from mouth of Eightmile River.

Drainage area.--22.0 sq mi.

Records available.--September 1937 to September 1955.

Gage.--Water-stage recorder. Datum of gage is 55.21 ft above mean sea level, datum of 

"1929.

Average discharge.--18 years, 45.8 cfs.

Extremes. Maximum discharge during year, 575 cfs Dec. 19 (gage height, 3.77 ft); minimum, 

0.3 cfs (regulated) Aug. 7 (gage height, -0.04 ft).

1937-55: Maximum discharge, 2,950 cfs Sept. 21, 1938 (gage height, 7.01 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. Occasional regulation at low flow.

Rating tables, water year 1954-55, except periods of ice effect and backwater from leaves 

or debris on control (gage height, In feet, and discharge, In cubic feet per second)

0.6

.9

1.1

0.35

.6 

1.3 

3.8

Oct. 18 to Sept. 30

0.5 

.7

2.0 

2.5 

3.0 

3.5

165

233

329

1.5 107 470

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Cf sm

In.

Oct.

28

28

26

26

24

23

21

20

19

18

19

19

18

17

17

41

45

*30

23

20

19

17

16

16

15

14 15-

17

34

79 

S5

789

25.5

1.16

1.34

Nov.

47

40

238

T53

130

103

81

68

62

56

52

50

48

46

44

41

40

40

41

93

160

124

86

*76

125

112

82

74

102

116

2,570

85.7

3.90

4.35

Dec.

86

71

63

56

55

52

46

b43

Iff

80

78

58

51

79

380

196

132

168

439

IST

145

*b!20

b!04

110

102

83

78

76

100

166 

177

3,636

117

5.32

6.13

Jan.

TIB" 125

121

99

83

82

95

b73

72

65

60

55

52

42

44

43

*39

35

35

30

26

29

28

30

30

28

28

b20

b21

b!7

b!6

1,638

52.8

2.40

2.77

Feb.

16

b!6

b!5

*b!8

17

19

blBO 132-

b71

56

70

164

b!06

*b73

60

b55

84

114

81

68

63

59

66

81

69

59

56

59

-

1,927

68.8

3.13

3.26

Mar.

68

82

69

76

95

98

140

102

84

81

75

70

66

64

*58

80

108

79

66

62

65

120

219

144

110

98

103

86

74

68

63

2,773

89.5

4.07

4.69

Apr.

58

55

56

113

125

90

83

71

60

56

52

*49

50

55

59

58

51

48

46

47

46

49

55

49

54

57

59

54

83

94

1,882

62.7

2.85

3.18

May

66

5T

48

45

43

47

43

42

47

41

35

31

28

27

24

22

23

22

20

18

16

15

14

16

15

15

24

19

16

15

17

908

29.3

1.33

1.53

June

42

ZS

19

15

14

13

14

12

12

12

10

15

26

18

13

*10

8.3

7.2

6.4

675

7.5

7.2

6.8

6.4

7.2

8.7

8.7

10

9.5

7.5

381.2

12.7

0.577

0.64

July

6.1

5.4

5.4

4.4

3.8

3.8

14

T4

8.7

6.1

5.0

4.1

3.5

2.9

2.6

2.4

2.9

2.4

*1.9

1.5

1.1

1.0

.8 iTo

1.5

1.5

1.3

1.3

1.7

1.2

1.0

114.3

3.69

0.168

0.19

Aug.

0.85

.7

.5

.45

.4

.35

735

6.1

4.1

2.9

2.1

29

135

205

138

62

33

36

277

2TT

122

71

72

124

78

54

44

41

32

24

1.892.80

61.1

2.78

3.20

Sept.

36

40

29

23

19

17

17

14

12

11

11

12

*11

10

9.5

9.5

8.7

8.3

8T3

20

25

16

12

38

167

95

53

66

106

66

970.3

32.2

1.47

1.64

Calendar year 1954: Max 694 Mln 0.25 Mean 55.0 Cfsm 2.50 !" 33.96

Water year 1954-55: Max 439 Mln 0.35 Mean 53.4 Cfsm 2.43 I". 32.92

Peak discharge (base, 500 cfs).--Dec. 15 (ll a.m.) 510 cfs (3.58 ft); Dec. 19 (6 a.m.) 575 cfs 

(3.77 ft); AugT 19 1(8:30 p.m.) 467 cfs (3.49 ft). 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
232 CONNECTICUT RIVER BASIN

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 Pittsburg, N. H., 3,330,000,000 

cu ft. Records furnished by Mew England Power Co.

Lake Francis on Connecticut River at Pittsburg, W. 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.

Comerfprd Station Pond on Connecticut River, 4^ 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, 1-j 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 Mascoma, N. H. , 509,000,000 cu ft; Grafton Pond, 

8| miles southeast of Mascoma, 144,000,000 cu ft; Crystal Lake, 5f 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 

Power Co.

Sunapee Lake on Sugar River at Sunapee, N. H., used for recreation and storage of water 

for power, has usable 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, 85 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 Harrlman 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, 

2i 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-j 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.

Ludlpw Reservoir in Chicopee River basin, 3-J miles northwest of Three Rivers, Mass., completed in 1875 for storage of water for municipal supply, has usable 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.

Knightvllle 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 basir 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, 6^ miles west of Westfield, Mass., 

3,050,000,000 cu ft. Records furnished by Board of Water Commissioners, Springfield, 

Mass.

long 73°03'33", 1 mile northeast 

" - ' " ipleted in 1865 

rds available, 

.nsville , 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 capacities are as follows: Barkhamsted Reservoir on East Branch 

Farmington River, lat 41°54'38", long 72°57'15", l£ miles south of Barkhamsted, Litchfield County, Conn. Drainage area, 53.8 sq mi. Completed in 1939 for storage of water 

for municipal supply. Total capacity, 4,250,000,000 cu ft. Records available, March 

1940 to September 1955. East Branch'Reservoir on East Branch Farmington River, 

lat 41°5S'49", long 72°57'30", 1 mile east of New Hartford, Litchfield County, Conn. 

Drainage area, 61.2 sq mi. Completed in 1919 for storage of water to compensate for

Otls Reservoir in Farmington River basin, lat 42°09'35
CONNECTICUT RIVER BASIN

Reservoirs in Connecticut River basin Continued

Barkhamsted, Easb Branch and Nepaug Reservoirs Continued.

water diverted from the river. Total capacity, 400,000,000 cu ft. Records available, 

August 1928 to September 1955. Nepaug Reservoir on Nepaug River, lat 41°49'37", long 

72°56'34", l| miles northwest of Collinsville, Hartford County, Conn. Drainage area, 

32.0 sq mi. Completed in 1918 for storage of water for municipal supply. Total capacity, 1,280,000,000 cu ft. Records available, August 1928 to September 1955. All three 

reservoirs are equipped with water-stage recorders. Records furnished by Water Bureau, 

Metropolitan District Commission, Hartford, Conn.

Whie basin, lat 41°44'08", long

-- -. -- , _- ... 0 .~., - _ _ ...,, , _.. . _-_ge area, 3.95 sq mi. Completed 

in 1908 for storage of water for domestic water supply. Total capacity, 8,650,000 cu 

ft. Records available, July 1928 to September 1955. Records furnished by Board of 

Water Commissioners, New Britain, Conn.

Shenipsit Lake on Hockanum River, lat 41°52'06", long 72°25'59", three-quarters of a mile 

east of Rockville, Tolland County, Conn. Drainage area, 16.5 sq mi. Dam raised to its 

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. Records available, September 1919 to September 1921, July 1928 to September 1955. Gage-height records furnished by Rockville Water & Aqueduct Co.

Month-end usable contents, in millions of cubic feet, water year October 1954 to September 1955

Date

Sept. 30, 1954

Dec. 31......

Jan. 31, 1955

Mar. 31... ...

May 31......

Sept. 30. .....

Date

Sept. 30, 1954

Jan. 31, 1955

May 3 1 ...... 

June 30. ..... 

July 31. ..... 

Aug. 31. ..... 

Sept.3O. .....

Date

Sept. 30, 1954 

Oct. 31...... 

Nov. 30...... 

Dec. 31...... 

Jan. 31, 1955 

Feb. 28. ..... 

Mar. 31. ..... 

Apr. 30. ..... 

May 31...... 

June 30. ..... 

July 31. ..... 

Aug. 31. ..... 

Sept. 30.. ....

Date

Sept. 30, 1954 

Oct. 31. ..... 

Nov. 30.... .. 

Dec. 31. ..... 

Jan. 31, 1955 

Feb. 28. ..... 

Mar. 31. ..... 

Apr. 30. ..... 

May 31...... 

June 30..... . 

July 31. ..... 

Aug. 31. ..... 

Sept. 30. .....

First and 

Second 

Connecticut 

Lakes

3,636.1

1,135.3

3,302.3

2 , 845 . 1

Sunapee 

Lake

503

418

211

718 

632 

476 

554 

401

Quabbln 

Reservolrt

52,226 

51,936 

52,423 

52,990 

52,916 

53,149 

53,888 

54,795 

54,717 

54,332 

52,684 

54,773 

54,706

Otls 

Reservoir

673 

514 

486 

408 

352 

392 

532 

749 

753 

761 

749 

669 

521

Lake 

Francis

4,102.2

1,767.1

3,415.0

3,246.6

Surry 

Mountain 

Reservoir

0.3

31.1

6.7 

.6 

.1

.2

.1

Ludlow 

Reservoir

181.1 

181.1 

181.1 

181.1 

179.9 

181.1 

181.1 

181.1 

169.1 

180.2 

174.7 

170 . 8 

148.7

Barkhamsted, 

East Branch 

and Nepaug 

Reservoirs

4,665 

4,420 

4,925 

5,549 

5,601 

5,559 

5,914 

5,914 

5,839 

5,561 

5,176 

5,913 

5,826

Comerford 

Station 

Pond

1,137

1,239

1,221

Birch 

Hill 

Reservoir

3.0

1.3

2.7 

1.8 

1.3 

2.7 

2.7

Watershops 

Pond

0 

0 

70.3 

71.8 

70.3 

71.8 

71.1 

73.1 

72.7 

71.8 

71.3 

69.4 

0

Whigville 

Reservoir

4.1

6.0 

8.7 

8.8 

5.3 

6.8 

8.7 

8.8 

6.0 

5.3 

5.3 

8.7 

5.1

Union 

Village 

Reservoir

2.4

8.8

11.9

1.9

Tully 

Reservoir

0.2 

.3

17.6

23.0

27.8

.3 

.1 

0

.2

Knlghtville 

Reservoir

0.2 

.5 

4.5 

7.4 

10.8 

19.2 

8.1 

7.4 

.4 

.1 

0 

.4 

.4

Shenipsit 

Lake

625.4 

600.6 

655.0 

670.8 

639.5 

655.0 

732.9 

742.0 

717.1 

676.9 

624.4 

678.9 

618.8

Lake s and 

ponds in 

Maseoma 

River basin

1,073.9

1,190.7

797.1

1,164.7

1,246.1

1,113.3

803.4

Somerset 

and 

Hirriman 

Reservoirs

6,473.8 

6,206.3

4,440.7

3,210.5

6,647.0

6,746.9 

6,360.7 

5,885.1 

5,988.6 

5,173.5

Borden Brook 

and Cobble 

Mountain 

Reservoirs

3,155.1 

2,955.1 

3,235.2 

2,941.9 

2,381.9 

2,314.3 

2,528.6 

3 , 100 . 8 

3,164.5 

3,067.4 

2,876.4 

3,215.4 

2,909.8

t Affected by dive 

aqueduct.

rsion from Ware River and diversion to Wachusett Reservoir and Chicopee Valley
234 MENUNKETESUCK RIVER BASIN 

Menunketesuck River near Clinton, Conn.

Location. Lat 41°18'10", long 72°31'00", on right bank at Fairy Dell, 100 ft downstream 

from Cobb's Bridge, 1.7 mile 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 1955.

Gage.--Water-stage recorder. Datum of gage is 23.64 ft above mean sea level, datum of 

1929.

Average discharge.--14 years, 21.8 cfs (adjusted).

Extremes (unadjusted for storage or diversion).--Maximum discharge durirg year, 375 cfs 

Dec. 15 (gage height, 4.50 ft); minimum, 0.008 cfs Aug. 7 (gage height, 0.66 ft).

1941-55: Maximum discharge, 1,600 cfs Sept. 11, 1954 (gage height, 8.51 ft), from 

rating curve extended above 270 cfs on basis of computation of peak flow over Kelseytown 

dam; no flow at times during August and September 1944; minimum gage height, 0.48 ft 

Sept. 9-12, 1944.

Remarks. Records excellent except those below 2.0 cfs, which are fair. 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 June 11, 12, 18-25, 

June 28 to Aug. 13, and Sept. 8-25 is a summation of daily flow at gsging 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. 

No account is taken of evaporation from the reservoir surfaces. .Flon' 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-Chester 

Water Co.

Revisions (water years). WSF 1301: 1942-44(M).

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

15

14

15

14

13

11

11

9.4

9.0

9.2

*9.4

9.5

9.5

9.2

8.9

14

14

12

10

9.6

8.8

8.2

7.4

7.4

7.1

6.8

7.3 B'.B

IB

48

3T

385.5

12.4

1.07

1.22

Nov.

20

16

104 ~9T

62

49

37

30

26

22

20

19

18

16

16

16

15

16

16

70

88

58

41

*36

59

45

36

33

54

52

1,184

39.5

3.41

3.80

Dec.

38

32

26

23

21

21

18

16

T8

38

31

23

*21

38

257

101

61

93

201

91

63

51

43

42

40

34

32

31

43

103

1,750

56.5

4.87

5.62

Jan.

61

56

54

44

37

37

44

30

30

26

24

22

21

18

17

ie

*15

15

15

14

12

11

12

13

13

13

12

9.9

9.5

7.9

7.4

716.7

23.1

1.99

2.29

Feb.

7.2

7.4

7.1

*T74

7.2

7.7

90

5T

31

23

26

58

34

22

20

19

41

49

35

30

27

24

33

46

35

29

27

31

_

_______

828.0

29.6

2.55

2.66

Mar.

36

42

33

47

54

53

80

51

42

41

38

33

32

29

26_

44

53

38

33

32

37

*92

166 -J5

54

48

51

40

34

31

1,496

48.3

4.16

4.80

Apr.

25

25

25

51

45

35

36

30

25

23

22

*19

19

23

27

26

22

20

18

18

T9~ 17

21

18

24

26

26

21

53

44

803

26.8

2.31

2.58

May

30

25

21

19

17

17

16

16

18

15

14

13

11

10

9.8

*9.5

10

9.8

8.6

7.4

6.5

6.2

6.2

6.7

6.4

6.1

4.3

4TS

4.3

4.4

4.3

357.1

11.5

0.991

1.14

June

9.2

6.4

5.3

4.7

4.4

4.2

4.0

3.8

3.7

3.6

3.5

4.9

10

8.0

6.0

4.9

*4.0

3.5

3.2

3.0

2.7

3.6

3.3

3.2

4.1

7.2

6.0

4.1

2.8

2.1

139.4

4.65

0.401

0.45

July

1.9

1.7

2.0

1.6

1.4

1.9

2.6

ZT4

2.0

1.6

1.4

1.2

1.1

1.0

.9

1.0

1.5

1.3

 1.1

1.1

.9

.7

.6

1.3

.9

.6

.5

.7

.6

.5

_.4_

38.4

1.24

0.107

0.12

Aug.

0.4

.35

.3

.25

.2

.2

.15 270-

1.5

1.2

.9

10

41

27

15

9.7

6.6

8.5

117 -8T

31

18

23

31

18

12

9.5

9.2

7.6

6.0

4.9

493 . 45

15.9

1.37

1.58

Sept.

7.6

7.2

5.9

4.9

4.6

4.5

4.0

3.4

3.0

2.8

2.7

2.6

*2.5

2.1

1.9

1.9

1.8

1.8

1.7

1.7

1.6

1.5

1.4

376

15

9.6

6.7

16

20

rS

156.0

5.20

0.448

0.50

Calendar year 1954: Max 533 Min 0.7 Mean 29.5 Cfsm 2.54 Ir . 34.46

Water Water year year 1954-55: 1954-55: Max Max 257 257______Mln Mln 0.15 0.15 Mean Mean 22.9 22.9 Cfsm Cfsm 1.97 1.97 Ir,. Ir,. 26.76 26.76_________

Peak discharge (base, 200 ofa, unadjusted for storage or diversion).--Dec. 15 (6:30 a.m.) 375 cfs 

(4.50 ft)j DecT 19 (Z a.m.) 295 cfs (4.08 ft); Mar. 23 (5:30 a.m.) 205 cfs (3.50 ft). 

* Discharee measurement made on this dav.
QUIMIPIAC RIVER BASIN

Quinnlpiac 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 1955.

Gage. Water-stage recorder and timber control. Datum of gage is 20.24 ft above mean sea 

level, datum of 1929.

Average discharge. 25 years, 207 cfs.

Extremes. Maximum discharge during year, 3,790 cfs Aug. 20 (gage height, 9.01 ft); minimum, 25 cfs Aug. 7.

1930-55: Maximum discharge, 5,230 cfs Sept. 21, 1938 (gage height, 9.55 ft), by computation of flow over dam 1 mile upstream; 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 figures published in the water-supply 

papers indicated.

WSP

(a) 

971,1301 

971,1301 

971,1301 

1001,1301 

1201,1301

Water 

year

1936 

1940 

1941 

1943 

1944 

1949

Date

Mar. 12, 

May 31 , 

Feb . 8 , 

Dec. 30, 

Sept. 15, 

Jan. 1,

1936 

1940 

1941 

1942 

1944 

1949

Discharge 

(cfs)

2,680 

2,270 

2,010 

1,890 

2,200 

2,500

Gage height 

(feet)

8.20 

7.66 

7.33 

7.09 

7.61 

7.97

a Published in WSP 801, 851, 1301.

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

are fair. Flow regulated by mills upstream.

Revisions (water years). WSP 781: Drainage area. WSP: 851: 1933, 1936. WSP 971: 

1940-42!WSP 1171: 1947 {calendar year mean). WSP 1201: 1931(M), 1932, l?34-35, 

1937, 1949-50(M). Revised figures of discharge, in cubic feet per second, for the water 

years 1936, 1938, 1940-41, 1943-44 and 1949, superseding those published in V'SP 851, 

971, 1001, 1201,-and 1301, are given herewith:

Date

1936

Mar. 12

13

1937

Nov. 29

1938

Jan. 25

26

Discharge

2,320

2,100

1,650

1,570

2,000

Date

1938-Con.

Sept. 20

21

22

23

24

25

26

27

28

Discharge

1,410

3,770

3,070

1,660

980

678

550

480

440

Date

1938-Con.

Sept. 2 9

30

1940

June 1

1941

Feb. 8

Discharge

408

408

1,900

1,890

Date

1942

Dec. 31

1944

Sept. 15

1948

Dec. 31

1949

Jan. 1

Disc'iarge

1,730

1,640

1,680

2,200

Month

Calendar year 1936. ................

Calendar year 1937 .................

Calendar year 1938. ................

Calendar year 1940. ................

Calendar year 1941. ................

Water year 1942-43

Calendar year 1944 .................

Calendar year 1948 .................

Calendar year 1949. ................

Cfs-days

71,346

83,028

93,492

16,889

112,974

13,498

87,014

8,832

44,048

68,909

79,703

62,686

5,119

78,767

72,153

Maximum

2,320

2,320

1,650

3,770

3,770

1,900

1,900

1,900

1,890

1,890

1,890

1,730

1,730

1,730

1,640

1,640

1,680

1,680

2,200

2,200

2,200

Minimum

209

13

13

129

16

196

114

20

50

208

23

23

103

23

124

44

50

35

35

35

93

44

255

31

31

Mean

649

195

227

317

256

411

563

302

310

450

239

238

315

134

328

189

218

189

145

171

165

215

551

211

198

Per square 

mile

5.95

1.79

2.08

2.91

2.35

3.77

5.17

2.77

2.84

4.13

2.19

2.18

2.89

1.23

1.11

3.01

1.73

2.00

1.73

1.33

1.57

1.51

1.97

5.06

1.94

1.82

Runoff in 

inches

6.86

24.36

28.35

3. 25

31.90

4.35

5.77

37.64

38.56

4.61

29.77

29.65

3.01

16.61

15.03

3.47

23.49

27.17

1.93

18.09

21.37

1.74

26.86

5.83

26.25

24.60

Revised peak discharge. 1957-56: Nov. 29 (9 a.m.) 1,890 cfs; Jan. 26 (4 to 5 a.m.) 2,340 cfsj 

July 24 (9 p.m.) 1,380 cfs.

1939-40: Jan. 16 (1 a.m.) 1,78O cfs; Mar. 15 (10:30 p.m.) 1,950 cfs; May 31 (11:30 p.m.) 2,270 cfs.
QUINNIPIAC RIVER BASIN 

Quinnipiac River at Wallingford, Conn.--Continued

Rating tables, water year 1954-55 (gage height, in feet, and discharge, 

In cubic feet per second)

Oct. I to Mar. 22 Mar. 23 to Sept. 30

1.0 92

1.5 173

2.0 270

4.0 

6.0 

6.5

765

1,380

1,630

0.3

.5

1.0

2.0

20

51

102

4.0 

6.0 

8.0 

9.0

765

1,380

2,500

3,770

Discharge, In cubic feet per second, water year October 1954 to Septe-nber 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

144

141

127

125

120

112

106

102

102

102

102

*105

102

100

105

217

228

169

141

127

117

111

105

101

98

97

98

117

176

256

204

4,037

150

1.19

1.57

Nov.

164

162

709

757

480

332

262

226

204

191

182

177

169

164

160

155

159

160

162

388

518

420

302

262

345

310

256

240

365

*368

8,729

291

2.67

2.98

Dec.

295

254

230

214

206

199

178

173

186

250

250

214

193 3"97

1.650

1,280

680

726

1,120

815

580

450

580

568

335

292

276

272

298

615

655

14,011

452

4.15

4.78

Jan.

480

420

405

558

308

318

335

280

250

246

258

222

214

202

191

189

184

175

169

168

151

159

159

159

157

155

151

144

137

125

120

6,967

225

2.06

2.38

Feb.

125

125

110

116

117

125

646

465

260

204

241

465

308

218

195

182

362

*588

286

240

222

212

276

552

280

234

220

236

-

7,210

258

2.57

2.47

Mar.

552

480

540

575

540

405

618

465

552

348

548

328

302

276

260

305

545

292

264

248

280

597

1,000

765

568

492

475

405

548

320

297

12,590

406

3.72

4.29

Apr.

280

267

275

442

518

450

418

555

297

276

259

244

240

259

269

252

254

226

224

222

214

*234

244

224

267

320

355

308

442

455

9,048

302

2.77

3.09

May

355

286

257

238

230

224

218

216

218

204

191

181

176

171

165

158

163

162

153

144

137

132

129

132

129

157

158

163

135 

128

140

5,648

182

1.67

1.92

June

139

128

126

124

111

105

101

102

105

105

102

120

137

124

106

98

91

a85

a 80

114

101

*99

91

91

96

98

98

104

104 

85

3,170

106

0.972

1.08

July

a78

a74

a70

a67

a65

a64

a63

a62

a61

a95

196

121

a74

a67

a62

a59

a56

*a59

59

53

53

49

46

78

63

51

47

44

44 

42

li

2,056

66.3

0.608

0.70

Aug.

39

38

36

37

36

55

27

140

89

59

48

174

570

658

358

220

163

318

*2,290

5.160

1,380

662

498

334

282

240

210

190

170 

160

155

12,754

411

3.77

4.35

Sept.

165

150

135

125

115

120

115

100

95

90

100

120

100

90

85

80

75

70

103

265

40

55

58

131

240

*210

151

200

208 

169

3,760

125

1.15

1.28

Calendar year 1954: Max 1,630 Mln 53 Mean 209 cfsm 1.92 Ir. 26.04

Water year 1954-55: Max 3,160 Mln 27 Mean 247 Cfsm 2.27 Ir. 30.69

Peak discharge (base, 900 cfs). --Dec. 15 (3 a.m.) 1,750 cfs (6.70 ft); Mar. 23 (3 to 4 a.m.) 1,030

cfs (5.00 ft); Aug. 20 (5 a.m.) 3,790 cfs (9.01 ft).

Discharge measurement made on this day.

a No gage-height records discharge estimated on basis of weather records and stag'e change when 

intake action was restored July 18.

Note.--Doubtful gage-height record Aug. 26 to Sept. 19; discharge estimated or basis of 1 staffgage reading and weather records.
HOUSATONIC RIVER BASIN 237

East Branch Housatonic River at Coltsville, Mass.

Location Lat 42°28'10", long 73°11'49", on right bank at Coltsville, Berkshire County, 

It miles upstream from Unkamet Brook and 2 miles northeast of Pittsfield.

Drainage area. 57.1 sq mi.

Records available. March 1936 to September 1955. Prior to October 1945, published as 

Housatonic River at Coltsville,

Gage. Water-stage recorder. Datum of gage is 993.49 ft above mean sea level, datum of

Average discharge.--19 years, 116 cfs (adjusted for diversion).

Extremes. Maximum discharge during year, 1,640 cfs Aug. 19 (gage height, 6.65 ft); minimum daily, 10 cfs Aug. 2.

1936-55: Maximum discharge, 6,400 cfs Sept. 21, 1938 (gage height, 10.80 ft), 

from rating curve extended above 1,300 cfs on basis of computation of peak flow over 

dam; minimum daily, 4.4 cfs Aug. 15, 1936.

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

Plow regulated by powerplants above station. Diversion above station from Cleveland 

Brook Reservoir for municipal supply of Pittsfield since May 1950.

Revisions (water years). WSP 851: 1936(M).

Rating table, water year 1954-55 (gage height, In feet, 

and discharge, In cubic feet per second)

3.5 

4.0 

5.0 

6.0

3.0 155

267

412

800

1,260

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Itotal

Mean

(t)

Oct.

75

88

90

88

82

82

79

70

51

40

71

76

72

64

67

209

134

96

79

80

74

70

48

31

45

48

55

70

66

97

78

2,375

76.6

6.79

Nov.

73

69

872

*637

289

173

117

109

100

94

90

96

72

55

71

85

87

95

93

281

1.020

552

294

209

177

171

161

153

216

228

6,739

225

10.1

Dec.

179

151

131

106

110

86

95

100

103

129

122

107

102

145

552

318

*194

451

680

306

183

149

139

143

120

105

112

116

302

260

207

6,003

194

8.88

Jan.

157

163

207

167

124

122

107

90

85

90

82

74

74

63

63

64

64

58

59

*55

50

54

52

58

54

54

52

48

44

32

40

2,506

80.8

11.1

Feb.

41

39

38

39

39

40

159

101

82

73

214

139

96

83

73

66

64

62

57

55

63

66

176

183

136

94

76

103

-

2,457

87.8

11.9

Mar.

23E

260

139

*85

88

84

79

70

67

149

401

458

297

190

145

261

279

151

130

101

114

107

129

103

103

96

79

70

82

*120

181

4,853

157

12.7

Apr.

244

322

285

165

200

325

448

294

216

284

390

336

250

240

351

375

242

188

183

188

190

179

175

137

356

515

422

260

247

218

8,225

274

15.6

May

155

139

130

*116

112

113

102

101

109

95

85

82

74

73

63

67

64

66

57

50

43

34

42

36

37

47

38

37

59

133

67

2,426

78.3

12.2

June

56

*54

44

43

38

43

36

39

38

36

37

37

42

43

38

33

32

31

28

M

26

151

66

50

101

44

38

33

29

*32

1,336

44.5

8.25

July

28

26

46

31

29

55

44

34

30

22

25

25

33

24

21

22

23

35

*28

32

24

29

25

23

24

30

22

24

24

23

22

883

28.5

12.3

Aug.

24

10

18

20

19

20

23

24

23

27

54

65

215

419

242

97

*59

159

1.150

575

224

143

120

107

93

90

112

100

 80

70

65

4,427

143

8.24

Sept.

60

56

52

48

54

50

48

45

40

35

42

40

38

36

38

37

36

35

40

45

*50

59

58

102

105

69

54

88

88

63

1,611

53.7

11.7

Adjusted for diversion

Mean 

Cfsm 

In.

83.4 

1.46 

1.68

235 

4.12 

4.5S

Calendar year 1954: 

Water year 1954-55:

203 

3.56 

4.09

91.9 

1.61 

1.86

99.7 

1.75 

1.82

169 

2.96 

3.42

290 

5.08 

5.66

90.5 

1.58 

1.83

Observed

Max 1,020 Mln 11 Mean 119 

Max 1,130 Mln 10 Mean 120

52.8 

0.925 

1.03

40.8 

0.715 

0.82

151 

2.64 

3.05

65.4 

1.15 

1.28

Adjusted

Mean 127 Cfsm 2.22 In. 30.25 

Mean 131 'Cfsm 2.29 m. 31.13

_____ -..- . . - _____. - (4 p.n 

(6.08 ft); Aug. 19 (10 a.m.) 1,640 cfs (6.65 ft).

* Discharge measurement made on this day.

t Diversion above station from Cleveland Brook Reservoir for municipal supply of Pittsfield, 

equivalent In cubic feet per second. Records furnished by city of Pittsfield.

Note. No gage-height record Aug. 28 to Sept. 21; discharge estimated on basis of 1 discharge 

measurement, weather records, recorded range In stage, and records for Housatonic River rear Qreat 

Barringtoji and West Branch Westfleld River at Huntlngton.
238 HOUSATONIC RIVER BASIN

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 Deusenville, 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 1955.

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. 42 years, 530 cfs.

Extremes. Maximum discharge during year, 6,060 cfs Aug. 19 (gage height, 9.65 ft); minimum daily, 51 cfs July 24.

1913-55: 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 dams 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 or no gage-height record, 

which are fair. Plow regulated by powerplants above station.

Revisions (water years).--WSP 415: 1913 calendar year. WSP 781: 1928(M). WSP 1051: 

1928, 1933.WSP 1301: 1914-15(M), 1917-27(M), 1929-31(M).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Dec. 19 Dec. 20 to Sept. 3O

2.5 

3.0 

3.5 

4.0

209

399

680

5.0 

6.0 

6.5

1,480

2,200

2,510

2.1 

2.5 

3.0 

3.5

48

97

209

407

4.0 

5.0 

7.0 

9.0

735

1,500

2,870

5,050

Discharge, In cubic feet per second, water year October 1954 to Septe-nber 1955

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.

282

187

272 

376

306

280

271

272 

176

196

309

264

251

265

247

332

371

444

325

260

291

258

288

102

27?

241

208

220

299

236

303

8,407

271

0.968

1.12

Nov.

a4OO

aSoD" a320

a2,4OO

*1,940

1,270

795

653

579

521

505

508

436

437

449

404

395

386

409

686

1,960

2.450

2,000

1,340

1,050

939

833

750

939

1,130

27,364

912

3.26

3.63

Dec.

1,040

849

736 

628

532

579

5OO

510 

468

533

533

454

355

517

1,120

1,390

*1,110

1,150

2,130

2.140

1,530

1,060

914

843

735

568

644

622

772

1,110

1,120

27,333

882

3.15

3.63

Jan.

938

930

1.120 

1,036

810

750

682

617 

478

559

484

412

423

369

322

351

412

356

347

316

*272

261

271

369

316

306

b245

b265

b255

b!70

b3Tb~

14,746

476

1.70

1.96

Feb.

b£55

bSlO

b205 

b£15

£20

555" 163

832

450

344

445

882

517

b580

a420

a340

324

305

304

245

409

438

799

~*552" 1^160

640

515

732

_

__--___

13,716

490

1.75

1.82

Mar.

1,010

1,560

1,320 

930

758

691

739

602

578

770

1,410

1.910

1,850

1,580

1,230

1,130

1,320

1,210

978

729

781

744

895

826

770

752

585

615

539 *5B5"

728

30,105

971

3.47

4.OO

Apr.

866

1,080

1,220 

1,280

1,220

1,470

1,890

1.940 

1,600

1,380

1,580

1,600

1,460

1,280

1,250

1,360

1,300

1,180

1,030

978

938

986

986

842

1,030

1,480

1,800

1,670

1,540

1,460

39,696

1,323

4.72

5.27

May

1.200

1,040

914 

802

*720

645

592

448 

561

501

484

439

383

364

255

376

375

267

272

302

238

186

235

302

241

249

261

246

156

4TO

644

14,118

455

1.62

1.88

June

423 *3W

325 

309

191

304

244

213 

179

193

209

119

259

274

226

174

202

210

162

242

177

240

372

295

345

288

282

240

220

*216

7,522

251

0.896

1.00

July

181

185

165 

212

194

206

242

n? 

183

172

167

131

157

114

128

128

58

166

160

*133

104

120

97

51

112

126

128

105

142

58

*83

4,427

143

0.511

0.59

Aug.

75

122

87 

96

87

101

6595"

118

9E

105

171

354

962

1,000

607

325

521

4.190

3,620

2,280

1,590

1,130

826

621

495

399

335

390

323

326

21,508

694

2.48

2.86

Sept.

283

276

240 

160

203

303

234

217 

199

142

108 ?4"9

153

136

184

147

116

119

179

167

163

*173

164

206

584

377

256

266

374

287

6,465

216

0.771

0.86

Calendar year 1954: Max 2,430 Mln 57 Mean 568 Cfsm 2.03 In. 27.55

Water year 1954-55: Max 4,19O Mln 51 Mean 59O Cfsm 2.11 In. 28.62

Peak discharge (base. 2.4OO cfa).--Nov. 4 (time unknown) 2,62O cfs (6.65 ft)j Nov. 22 (8 a.m.) 

2,590 cfs (6.62 ft); Dec. 20 ^:30 a.m.) 2,43O cfs (6.37 ft) j Aug. 19 (5:3O p.m.) 6,O6O cfs (9.65 ft).

* Discharge measurement made on this day.

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

when available, and records for East Branch Housatonlc River at Coltsvllle.

b Stage-discharge relation affected by Ice.
HOUSATONIC RIVER BASIN 239

Green River near Great Barrington, Mass.

Location.--Lat 42°11'31", long 73°23'28", on left bank 250 ft downstream from Seekonk 

Road highway bridge, 0.2 mile downstream from Seekonk Brook, l| miles west of Great 

Barrington, Berkshire County, and 3 miles upstream from mouth.

Drainage area.--52.5 sq mi.

Records available. October 1951 to September 1955.

Gage. Water-stage recorder. Altitude of gage is 690 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,060 cfs Aug. 19 (gage height, 5.75 ft), from 

rating curve extended above 470 cfs by logarithmic plotting; minimum, 4.5 cfs Aug. 4, 5.

1951-55: Maximum discharge, 1,710 cfs Apr. 6, 1952 (gage height, 5.86 ft), from 

rating curve extended above 680 cfs by logarithmic plotting; maximum gage height, 

5.91 ft June 1, 1952; minimum discharge, 3.0 cfs Sept. 2-5, 1952.

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

which are fair.

Rating tables, water year 1954-55, except periods of ice effect (gage height, in

feet, and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 3-6, Nov. 20 to Dec. 2, Dec. 18, Aug. 19)

Oct. 1 to Dec. 18 Dec. 19 to Aug. 19 Aug. 20 to Sept. 30

2.0 

2.2 

2.5 

3.0 

4.0

47

100

224

560

1.7

1.8

1.9

2.0

4.1

6.1

9.0

16

2.2 

2.5 

3.0 

4.0

45

104

224

560

2.1

2.2 

2.5 

3.0 

4.0

13

19

49

142

390

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

37

39

39

37

35

34

33

32

31

30

30

29

28

27

31

39

36

32

30

30

30

29

28

26

3T

31

32

35

33

41

42

1,017

32.8

0.625

0.72

Nov.

40

37 214"

*216

156

132

121

108

100

94

86

82

75

73

66

58

56

58

56

167

55D" 358

227

196

196

172

154

142

200

182

4,112

137

2.61

2.91

Dec.

156

142

130

119

115

100

90

84

80

88

80

75

69 -53

a!80

a!30

*a!20

432

335" 540

257

216

182

172

145

124

118

116

147

227

207

5,059

163

3.10

3.58

Jan.

164

204

218

182

155

159

141

108

104

98

88

74

72

a62

a60

a58

a56

a52

aSO

a45

*a39

35

34

32

28

28

26

24

22

20

18

2,456

79.2

1.51

1.74

Feb.

17

16

IS

16

16

18

70

60

37

34

95

86

56

47

39

35

34

32

31

31

32

35

T5B" 270

*102

90

100

159

-__-__.

1,740

62.1

1.18

1.23

Mar.

329

276

172

143

137

152

130

115

104 FSO"

405

33S

272

204

177

230

202

150

139

120

120

130

182

145

159

159

134

116

112

*118

141

5,571

180

3.43

3.95

Apr.

155

177

172

188

261

347

778" 351

233

218

207

191

174

164

167

164

145

132

124

116

122

120

116

108

19T

245

272

218

294

245

5,898

197

3.75

4.18

May

207

182

164

147

*132

124

110

104

98

86

78

68

58

51

43

42

40

37

35

34

34

32

32

32

34

39

34

32

31

1ST

51

2,292

73.9

1.41

1.62

June

54

*4T

43

39

39

37

35

32

31

28

26

32

35

31

28

22

17

16

15

16

15

20

17

16

29

21

17

14

13

*12_

799

26.6

0.507

0.57

July

12

14

19

IS

13

16

14

12

12

11

10

9.0

9.0

8.6

8.2

7.9

7.6

7.9

7.0

*6.5

6.3

6.1

6.1

6.1

6.1

6.1

5.7

5.7

5.5

5.1

5TT

284.6

9.18

0.175

0.20

Aug.

5.1

5.1

4.9

4.7 479"

5.1

5.1

5.1

4.9

4.7

5.5

7.4

22

94

40

21

14

120

540

rr

179

286

194

144

111

90

82

69

54

42

39

2,416.5

78.0

1.49

1.71

Sept.

36

3?

29

28

27

28

27

25

23

22

21

22

21

20

20

18

18

18

18

18

18

*16T5-

30

31

24

22

34

30

26

718

23.9

0.455

0.51

Calendar year 1954; Max 540 Min 6.8 Mean 91.4 Cfsm 1.74 In. 23.63

Water year 1954-55: Max 540 Min 4.7 Mean 88.7 cfsra 1.69 In. 22.92

Peak discharge (base. 750 cfs). Dec. 18 (7:30 to 8 p.m.) 1,030 cfs (4.99 ft); Aug. 19 (8:45 a.m.) 

1,060 cfs (5.75 ft).

* Discharge measurement made on this day.

a No gage-height record, discharge estimated on basis of 2 discharge measurements, weather records, 

recorded range in stage when available, and records for Green River at Williamstown and West Branch 

Westfield River at Huntington.

Note. Stage-discharge relation affected by ice Jan. 8, 14-21, 25, Jan. 27 to Feb. 9, Feb. 12-14, 

7, 8.
HOUSATONIC RIVER BASIN 

Blackberry River at Canaan, Conn.

Location. Lat 42 "01 '26", long 73 "20 '32", on right bank downstream from highway bridge 

on U. S. Highway 44, 0.7 mile southwest of Canaan, Litchfield County, and 1^- miles 

upstream from mouth.

Drainage area. --48. 2 sq mi.

Records available. July 1949 to September 1955.

Gage. Water-stage recorder. Datum of gage is 645.72 ft above mean sea level, datum of ~

Average discharge. 6 years, 88.7 cfs.

Extremes . --Maximum discharge during year, 14,200 cfs Aug. 19 (gage heigrt, 13.01 ft), from 

rating curve extended above 2.400 cfs on basis of slope-area determiration of peak flow; 

minimum, 3.3 cfs Aug. 10, 11 (gage height, 1.33 ft).

1949-55: Maximum discharge, that of Aug. 19, 1955; minimum, 2.2 cfs Aug. 28, 1949 

(gage height, 1.12 ft); minimum daily, 2.3 cfs Aug. 28, 1949.

Flood of Dec. 31, 1948, reached a stage of 12.0 ft, from floodmarks (discharge, 

7,000 cfs, from slope-area determination at East Canaan, 2.5 miles upstream, adjusted 

for intervening drainage area.) .

Remarks . Records good. Infrequent regulation at low flow.

Rating tables, water year 1954-55, except periods of ice effect or backwater from 

rocks on control (gage height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Aug. 14 Aug. 14 to Sept. 3O

3.0 

4.1

5.8 

8.3

1.8 

2.0 

2.2 

2.5

3.0 

5.0 

7.0

186

566

1,130

2.0 

2.5 

3.0 

4.0 

5.0

235

460

6.0 

7.0 

8.0 

9.0 

11.0

760

1,190

1,790

2,690

6,400

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

29

29

34

31

28

29

31

25

24

24

23

23

22

55- 21

91

6T

40

33

35

31

28

25

24

22

22

23

41

48

80

70

1,074

34.6

0.718

0.83

Nov.

50

48

*80T

385

218

158

123

103

91

77

67

64

58

55

52

*48

48

50

51

298

934

4158"

230

173

180

146

122

118

238

186

5,580

186

3.86

4.31

Dec.

137

113

96

77

b67

55

54

54

66

103

78

66

63

203

494

214

144

370

428

211

143

123

113

blOl

b88

80

77

85

165

234

178

4,480

145

3.01

3.47

Jan.

130

156

152

123

96

104

88

b63

60

b54

49

46

t>39

b34

b34

b33

b30

b28

b27

*b23

b20

b21

b22

b23

b23

b22

b20

b!9

b!8

b!6 bTB"

1,589

51.3

1.06

1.22

Feb.

b!6

b!6

b!6

*b!6

b!5

b20

b327 E38"

55

48

154

b!27

b77

b6O

b47

*b41

b42

b44

44

55

63

64

306

148

b99

b74

77

113

2,252

80.4

1.67

1.74

Mar.

191

b!69

104

78

15

96

96

77

80

187

280

228

154

118

99

166

154

101

91

80

*80

103

154

139

165

146

113

93

86

94

113

3,910

126

2.61

3.01

Apr.

127

134

143

148

229

367

404

277

224

252

243

196

167

156

186

182

148

130

120

113

110

IBT

139

118

246

328

357

211

426

6,295

210

4.36

4.86

May

TIB- 180

ISO

116

*106

125

101

98

93

80

72

64

58

52

49

46

48

43

39

36

33

31

29

47

44

64

46

36

32

66

48

2,160

70.0

1.45

1.67

June

46

38

34

29

28

25

22

22

22

22

20

29

31

29

25

20

17

15

1422"

*21

57

3T

30

49

29

22

21

25

19

820

27.3

0.566

0.63

July

16

14

13

12

11

12

13

12

10

9.0

cB.3

C7.6

C7.0

c6.6

*c6.3

6.3

9.0

9.0

9.4

7.3

6.6

5.8

5.5

5.1

5.5

6.0

5.6

5.3

5.5

5.3

5.0

260.0

8.39

0.174

0.20

Aug.

4.4

4.3

4.0

3.9

3.7

3.7

3.4

376

3.7

3.4

3.7

79

371

699

135

50

34

913

*6,220

1,340

606

493

446

247

167

130

106

102

80

68

67

12,394 . 8

40O

8.30

9.57

Sept.

62

55

51

46

42

55

44

37

33

*32

37

69

49

36

33

30

28

26

26

25

24

23

2170"

82

45

33

~ST 109

51

1,355

45.2

0.938

1.05

Calendar year 1954: Max 934 Min 7.9 Mean 83. O Cfsm 1.72 In. 23. 4O

Water year 1954-55: Max 6,22O Min 3.4 Mean 116 Cfsm 2.41 In. 32.56

Peak discharge (base, 8OO cfs). Nc

(7. 45 ft); Dec? 14 (12 p.m.) 656 cfs

v 3 (7 a.m.) 970 cfs (6.65 ft); Nov. 21 (5 a.m.) 1,30O cfs 

(6.18 ft); Aug. 19 (7:30 a.m.) 14,200 cfs (13.01 ft).

Discharge measurement made on this day. 

b Stage-discharge affected by ice. 

c Backwater from rocks on control.
HOUSATONIC RIVER BASIN 241

Housatonio River at Palls Village, Conn.

Location.--Lat 41°56'56", long 73°22'05", on left bank 0.6 mile downstream from hydroelectric plant of Connecticut Power Co. at Palls Village, Litchfield County, 2 miles 

downstream from Hollenbeck River, and at mile 75.3.

Drainage area. 632 sq mi.

Records available. July 1912 to September 1955.

Gage. Water-stage recorder. Datum of gage is 522.34 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. 43 years, 1,078 cfs.

Extremes. Maximum discharge during year, 22,700 cfs Aug. 19 (gage height, 22.84 ft, from 

floodmarks); minimum, 104 cfs Aug. 9; minimum gage height, 1.00 ft Nov. 2; minimum 

daily discharge, 144 cfs July 18.

1912-55: 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 excellent except those for periods of ice effect or backwater from 

aquatic vegetation, which are good. Low flow completely regulated by powerplant of 

Connecticut Power Co.

Revisions. WSP 781: Drainage area.

Rating tables, water year 1954-55, except periods of Ice effect or backwater from aquatic 

vegetation (gage height, in feet, and discharge, In cubic feet per second)

Oct. 1 to Aug. 18 Aug. 19 to Sept. 30

1.0 

1.5 

3.0

126

280

1,OOO

5.0 

7.0 

9.0

2,110

3,420

4,930

1.8 

3.0 

5.0 

8.0

385

950

2,080

4,130

12.0

16.0

20.0

7,600 

12,400 

18,OOO

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Yean

Cfsm

In.

Oct.

590

591

528

714

681

612

560

576

508

386

462

598

510 

429

436

794

782

640

681 

584

*524

524 

498

467

258

523

468

469

486

746 

586

17,191

555

0.878

1.01

Nov.

604

670

1,920

3,420

3,280

2,860

2,170

1,700

1,370

1,180

1,120

1,080

1,010 

919

895

890

822

820

823 

1,340

3,740

4,450 

*4,050

3,420

2,660

2,230

1,990

1,930

1,930

2 350

57,643

1,921

3.04

3.39

Dec.

2,230

1,990

1,880

1,510

1,400

1,240

1,150

1,190

1,180

1,220

1,250

1,170

1,060 

1,080

2,380

2,730

2,350

2,440

4,150 

4,050

2,790

2,660 

2,350

2,050

1,880

1,520

1,420

1,370

1,640

2,040

2,530

59,880

1,932

3.06

3.53

Jan.

2,230

2,050

2,170

2,170

1,990

1,620

1,820

1,180

bl,090

1,200

bl,150

bl,040

b970 

b870

b850

b84O

b820

b820

b730 

b700

b650

666 

634

610

b680

b650

620

500

b580

b500 

b410

52,790

1,058

1.67

1.92

Feb.

b600

b440

b440

b390

b430

b450

bl,420

bl,670

bl,520

bl,070

b940

bl,570

bl,400 

b990

*b950

b780

b840

751

690 

702

759

875 

1,410

2,290

2,250

1,770

1,500

1,450

-

29,865

1,067

1.69

1.76

Mar.

1,820

2,660

2,660

2,170

1,820

1,600

1,600

1,400

1,320

1,500

2,410

5,210

5,210 

3,000

2,600

2,290

2,470

2,290

2,050 

1,880

1,550

1,200 

1,600

1,90C

2,000

1,900

1,800

1,600

1,500

1,400

,

61,910

1,997

5.16

5.64

Apr.

1,7OO

1,800

1,700

1,600

2 , 500

5,200

5,600

5,600

5,400

5,200

3,000

2,860

2,750 

2,550

*2,470

2,470

2,410

2,230

2,050 

1,880

1,820

1,880 

1,990

1,880

1,880

2,730

3,420

5,420

5,560

5,650

77,140

2,571

4.07

4.54

May

,000

,470

,170

,990

,800

,670

,510

,400

,510

,280

,180

,120

,020 

874

851

674

788

708

611 

578

618

508 

426

W9

672

669

626

558

459

555

958

53,602

1,084

1.72

1.98

June

1,010

794

687

584

510

425

546

449

386

372

404

413

344 

498

484

368

355

340

316 

275

*380

409 

493

544

532

551

432

410

377

360

14,024

467

O.739

0.82

July

332

314

321

236

522

581

418

364

525

280

278

274

2£0 

180

*175

194

208

144

2T&

215

205

181 

181

184

184

178

175

184

187

190

7,492

242

0.583

0.44

Aug.

185

185

185

185

565

185

175

170

160

2OO

175

290

810 

2,200

2,670

1,880

1,220

1,620

*17,000 

14,800

9,160

5,690 

4,570

5,290

2,360

1,850

1,500

1,380

1,210

1,120

1,020

77,790

2,509

5.97

4.58

Sept.

970

880

795

710

628

720

805

675

618

*600

524

600

690 

551

492

510

461

425

334

563

515

409 

413

492

835

820

725

760

915 

804

19,239

641

1.01

1.13

Calendar year 1954: Max 5,010 Hin ISO Mean 1,207 Cfsm 1.91 In. 25.92

Water 1 year year 1954-55: 0.304-00: Max max 17,000 j./,uuu Yin mm 144 ±44 Mean mean 1,339 j.,ooa Cfsm ui sm 2.12 IL.I.C. In. in. 28.74 ca.it

ik discharge (base. 5,600 cfs) . Nov. 21 (8 to 11 p.m.) 4,770 cfs (8.78 ft): Dec. 19 (2 to 5p.m.)

I cfs (8.26 ft); Apr. 30 (1 a.m.) 3,840 cfs (7.57 ft); Aug. 19 (l to 2 p.m.) 22.7OO cfs (22.84

Peak 

4,370 

ft).

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note.--Backwater from aquatic vegetation Oct. 1 to Nov. 2, June 5 to Aug. 13.
242 HOUSATONIC RIVER BASIN

Tenmile River near Gaylordsville, Conn.

Location. Lat 41°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, Litchfield County.

Drainage area.--204 sq mi.

Records available. December 1929 to September 1955.

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 .--26 years, 296 cfs.

Extremes . --Maximum discharge during year, 17,400 cfs Aug. 19 (gage height, 14.9 ft, from 

floodmark in gage house), from rating curve extended above 9,800 cfs by logarithmic 

plotting; minimum, 12 cfs Aug. 3-5 (gage height, 0.59 ft); minimum daily, 12 cfs 

Aug. 4.

1929-5^: Maximum discharge, that of Aug. 19, 1955; minimum, 8 cfs Sept. 24, 26, 

1939 (gage height, 0.52 ft); minimum daily, 9 cfs Sept. 23-26, 1939.

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

Revisions (water years) . WSP 1201: 1939.

Rating table, water year 1954-55, except periods of ice effect (gage 

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

0.5 

.6

 .8 

1.0 

1.5 

2.0

13

30

52

135

255

3.0

4.0

6.0

8.0

10.0

12.0

600

1,070

2,390

4,400

7,400

10,900

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

146

144

135

133

125

119

115

108

104

102

102

101

97

92

92

162

166

135

12 1 

115

115

106

99

95

92

91

3T

106

125

175 

180

3,689

119

0.583

0.67

Nov.

164

T68

1,020

970

752

620

500

435

389

340

310

296

277

263

255

242

*237

237

229 

498

1,170

1,120

895

775

798

685

600

560

730

730

16,265

542

2.66

2.97

Dec.

600

540

488

431

413

b360

b310

b305

TTO

399

372

331

310

384

1,060

870

685

925

1,470 

1,070

820

685

bSOO

588

544

461

435

424

508

752 

820

18,270

589

2.89

3.33

Jan.

640

620

685

584

512

496

488

366

375

372

331

282

290

b220

b210

b200

bZOO

b!90

bl80 

b!60

b!60

b!70

b!70

b!70

b!60

b!50

146

b!25

bllO

blOO 

bllO"

8,972

289

1.42

1.64

Feb.

bllO

bllO

blOO

bT55~

blOO

bllO

b 1,380

682

372

296

314

379

b245

b240

229

*212

242

290

290 

375

453

322

684

942

461

382

337

420

_

10,177

363

1.78

1.85

Calendar year 1954: Max 1,470 Min 24

Mar.

532

620

453

431

410

536

592

435

442

600

798

640

580

516

469

560

640

512

469 

435

457

600

800

700

750

650

550

500

480

460

450

17,067

551

2.70

3.11

Apr.

450

450

480

550

650

750

800

700

650

600

552

508

496

480

492

472

424

396

372 

359

346

403

406

356

484

718

1,070

*820

1,070

1,140

17,444

581

2.85

3.18

Mean 320

May

79§" 920

685

620

564

596

504

469

450

396

356

325

302

279

258

242

239

224

206 

192

178

162

159

32T

268

242

204

185

171

212

197

10,930

353

1.73

1.99

June

204

15Z

173

150

155

146

131

125

119

119

110

131

135

123

111

97

89

78

74 

*95

106

115

121

115

150

125

102

87

75

66

3,619

121

0/593

0.66

Cfsm 1.57

July

60

59

53

50

56

66 66

59

50

47

48

46

41

38

35

35

34

33

34 

33

31

29

27

30

29

32

29

26

25

20

18

1,239

40.0

0.196

0.23

Aug.

15

15

13

12

Tf

19

21

21

19

17

19

27

256

716

406

271

209

377

10,700

3,000

*2,010

1,430

1,110

835

667

576

524

435

382

356

29,622

956

4.69

5.41

Sept.

325

?§9

271

247

226

222

206

185

168

*157

159

185

192

164

155

146

137

131

129 

127

117

110

102

144

255

187

153

229

260

5,587

186

0.912

1.02

In. 21.29

Water year 1954-55: Max 10,700 Min 12 Mean 391 Cfsm 1.92 In. 26.0?

Peak discharge (base, 1,400 cfs). Feb. 7 (4 a.m.) 2,630 cfs (6.34 ft); Aug. 19 (12 m.) 17,400 cfs 

(14.9 ft).

* Dishcarge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--No gage-height record Mar. 22 to Apr. 10; discharge estimated on basis of records for 

Wappinger Creek near Wappingers Falls, N. Y.
HOUSATONIC RIVER BASIN 243

Housatonic River at Gaylordsville, Conn.

Location. Lat 41°39'll", 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 Gsy)ordsville, Litchfield County, l| 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 December 

1908 (gage heights only), January 1909 to December 1912 (fragmentary), January 1913 to 

October 1914 (gage height only), November 1914 (fragmentary), July 1940 to September 

1955.

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. 15 years (1940-55), 1,673 cfs.

Extremes. Maximum discharge during year, 51,800 cfs Aug. 19 (gage height, 18.58 ft); 

minimum daily, 145 cfs Aug. 10.

1900-1914, 1940-55: Maximum discharge, that of Aug. 19, 1955; 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. 

Revisions (water years). WSP 1301: 1949.

Rating table, water year 1954-55 (gage height, In feet, and discharge, 

In cubic feet per second)

1.2 

1.4 

1.6 

2.0 

2.5 

5.0

115

195

277

447

710

1,050

4.0

5.0

7.0

10.0

13.0

17.0

1,940

3,120

6,380

13,500

23,800

43,200

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1 

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

848 

830

806

818

867

853

810 

727

728

694

592

714

806

766

604

784

1,100

981

821

842

788

684

678

656

620

418

F7T

643

772

902

1,020

23,846

769

0.774

0.89

Nov.

828 9BB~

3,260

4,930

4,440

3,970

3,120 

2,440

2,000

1,740

1,650

1,620

1,550

1,480

*1,310

1,370

1,290

1,250

1,210

2,100

5,630

6,570

5,630

4,930

4,280

3,460

3,060

2,860

3,180

3,460

85,584

2,853

2.87

3.20

Dec.

3,250 

2,920

2,680

2,220

2,120

1,900

1.560 

*1,620

1,740

1,980

1,960

1,760

1,580

1,810

3,970

4,120

3,530

4,360

6.570

6,000

5,100

3,970

3,320

3,060

2,740

2,270

2,220

2,100

2,500

3,320

3,820

92,070

2,970

2.99

3.45

Jan.

5.520 

3,120

3,180

3,120

2,860

2,560

2,560 

1,850

1,840

1,920

1,740

1,500

1,560

1,380

1,250

1,240

1,250

1,080

1,070

980

920

926

976

952

872

956

970

820

660

670

660

48,752

1,575

1.58

1.82

Feb.

596 

750

590

580

540

560

3,250 

2,620

2,160

1,640

1,480

1,990

1,850

1,540

1,550

*1,350

1,28O

1,290

1,210

1,330

1,48O

1,340

2,570

5,550

3,060

2,560

2,000

2,100

_

46,356

1,655

1.66

1.75

Mar.

2,740 

3,550

5,550

5,060

2,560

2,500

2,560 

2,100

2,100

2,500

3,600

4.280

4,280

3,970

3,550

5,590

5,600

5,250

2,920

2,620

2,580

2,680

5,970

3,670

5,550

3,250

5,060

2,560

2,440

2 520

2^520

94,800

5,058

5.08

3.55

Apr.

2.500 

2,626

2,860

3,530

4,280

4,760

5,450 

5,270

4,930

4,440

5,970

5,970

5,820

3,600

*3,460

3,390

3,250

3,060

2,860

2,620

2,500

2,680

2,740

2,620

2,860

3,970

5,450

4,950

5,650

5.810

113,830

3,794

5.82

4.26

May

4.760 

5,970

5,460

5,060

2,860

2,800

2,440 

2,270

2,160

2,000

1,840

1,740

1,600

1,500

1,420

1,300

1,150

1,290

1,150

1,000

998

950

858

98T

1,220

1,290

1,070

927

976

975

1,040

55,018

1,775

1.79

2.06

June

1,420 

1,320

1,050

1.04O

824

811

665 

860

652

514

540

824

599

627

760

627

490

441 4"SB~

*571

518

664

758

868

854

818

698

662

540

510

21,950

752

0.756

0.82

July

479 

412

418

458

461

381

554" 596

452

402

391

525

324

292

294

198

294

302

249

228

274

356

203

194

288

198

176

225

264

201

185

10,050

324

0.326

O.38

Avo;.

227 

208

206

251

299

585

146 

157

177

145

247

528

955

5,150

3,240

2,250

1,560

1,820

58, 800

27,700

15,100

9,490

7,460

5,560

4,060

5,110

2,580

* 2,510

2,010

1,840

1,700

157,451

4,453

4.46

5.14

Sept.

1.570 

1,440

1,320

1,200

1,070

1,080

1,170 

1,080

952

903

875

959

1,10O

980

734

819

770

686

644

446

866

*580

612

790

1,200

1,170

1,060

1,120

1,570

1,240

29,806

994

1.00

1.12

Calendar year 19£4: Max 7,380 Mln 137 Mean 1,771 Cfsm 1.78 In. 24.19

Water year 1954-55: Max 38,800 Mln 145 Mean 2,081 Cfsm 2.09 In. 26.42

Peak discharge (base. 4.500 cfs).--Nov. 4 (8 to 10 a.m.) 4,950 cfs (6.21 ft): Nov. 21 (10:50 p.m.) 

7,170 cfs (7.57 ft); Dec. 19 (12 m.) 6,970 cfs (7.26 ft); Apr. 7 (8 to 12 p.m.) 5,630 cfs (6.56 ft); 

Apr. 29 (10 p.m.) 6,380 cfs (6.96 ft); Aug. 19 (5 p.m.) 51,800 cfs (18.58 ft).

* Discharge measurement made on this day.
244 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 Wilford.

Drainage area.--68.5 sq mi.

Records available. October 1931 to September 1955.

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. 24 years, 121 cfs.

Extremes. Maximum discharge during year, 3,920 cfs Aug. 19 (gage height, 11.18 ft), from 

rating curve extended above 3,000 cfs by logarithmic plotting; minimum, 12 cfs May 24 

(gage height, 0.98 ft).

1931-55: Maximum discharge, that of Aug. 19, 1955; minimum, 5 cfs Oct. 20, 1946 

(corrected); minimum daily, 8 cfs Sept. 27, 1948; minimum gage height, 0.77 ft Aug. 10, 

1939.

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

from ice or grass on control, which are fair. Some diurnal fluctuation caused by mills 

at Brookfield and Danbury.

Revisions (water years). WSP 781: Drainage area. WSP 801: 1931-35. WSP 851: 1936. 

WSP 871:I53THffSP 1031: 1944. WSP 1081: 1946. WSP 1301: 1944(M). WSP 1331: 

1936(M), 1938(M), 194l(M).

Rating table, water year 1954-55, except periods of Ice effect and backwater 

from grass on control (gage height, In feet, and discharge, in cubic 

feet per second)

0.9 

1.5 

2.0 

3.0 

4.0 

5.0

105

182

283

6.0 

7.0 

8.0 

9.0 

10.0

406

609

1,120

1,820

2,680

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

60

58

52

49

52

51

47

45

45

43

42

4T

44

43

44

67

72

58

54

54

56

52

50

46

44

45

46

57

65

128

T25

1,738

56.1

C.819

0.94

Nov.

90

80

360

609

450

272

182

144

128

118

108

99

93

87

82

82

*80

82

84

174

621

755 4"50

280

310

270

230

210

250

350

7,080

236

3.45

3.85

Dec.

250

210

180

160

140

125

110

105

100 14"0

140

120

110

170

400

60O 32~6"

277

474

474

310

*240

205

196

186

152

140

140

164

282

392

7,018

226

3.30

3.80

Jan.

304 23o~

256

220

182

173

196

161

144

125

122

111

105

114

118

90

84

82

80

75

70

67

64

62

60

58

56

52

48

46

45

3,600

116

1.69

1.95

Feb.

50

48

*47

53

53

56

320

402

141

102

110

235

191

125

99

90

201

320

168

125

111

108

*136

220

152

122

108

114

_

4,007

143

2.09

2.18

Mar.

170

188

216

214

283

235

294

234

182

182

182

178

168

156

140

163

220

168

144

140

150

296

458 4~2~8~

278

230

250

205

178

164

148

6,642

214

3.12

3.60

Apr.

140

132

136

287

599

347

311

266

215

191

178

156

140

144

148

136

122

*114

111

111

108

T?5

144

118

148

230

300

218

256

372

5,803

193

2.82

3.15

May

320

7K

191

164

148

144

128

118

118

108

102

96

90

87

82

76

74

71

68

66

62

60

39IB56

68

66

54

49

60

56

3,094

99.8

1.46

1.68

June

61

57

51

47

48

42

41

42

43

45

38

43

58

52

46

38

36

33

29

59

60

58

*9466-

84

64

54

50

47

44

1,530

51.0

0.745

0.83

Jvly

41

40

38

35

34

33

33

34

33

29

55

39

30

27

*26

30

85

4T

37

30

25

22

20

32

45

31

24

22

22

20

UL

1,028

33.2

C.485

0.56

Aug.

14

TT

14

14

16

15

14

53

43

22

57

204

397

896

1,140

690

444

362

2,350

2,620

1,240

785

580

426

285

215

181

155

134

122

114

13,616

439

6.41

7.39

Sept.

107

98

91

82

77

110

99

78

*69

65

62

68

64

58

58

58

54

50

48

55

54

47

-$£ 45

122

84

62

99

~m125

2,233

74.4

1.09

1.22

Calendar year 1954: Max 755 Mln 24 Mean 115 Cfsm 1.68 Ir. 22.84

Water year 1954-55: Max 2,620 Mln 14 Mean 157 Cfsm 2.29 Ir, 31.15

Peak discharge (base, 600 cfs). Nc

912 cfs (7.66 ft); Aug. 15 (12:30 a.n

v. 4 (7 to 9 a.m.) 645 cfs (7.12 ft); Nov. 21 (11:30 p.m.-) 

1.) 1,360 cfs (8.37 ft); Aug. 19 (11 p.m.) 3,920 cfs (11.18 ft).

* Discharge measurement made on this day.

Note. No gage-height record Nov. 23 to Dec. 16; discharge estimated on basis of weather records 

and records for Poraperaug River at Southbury and other nearby streams. Stage-discharge relation 

affected by ice Jan. 18 to Feb. 7. Backwater from grass on control May 16 to Arg. 13.
HOUSATONIC RIVER BASIN 245

Shepaug River at Woodville, Conn.

Location.--Lat 41°43'24", long 73°17'37", at left end of dam at outlet of Shepai'g Reservoir, 1 mile north of Woodville, Litchfleld County, and 3.5 miles upstream from Bantam 

River.

Drainage area.--38.0 sq ml.

Records available.--October 1935 to September 1955.

Gag e .--Nonrecordlng gage at dam or at auxiliary artificial control below dam; read usually once daily.

Average discharge. 20 years, 86.4 cfs (adjusted for storage and diversion).

Extremes.--Maximum discharge during year, 13,800 cfs (observed) Aug. 19; minimum observed, 

2.4 cfs at times.

1935-55: Maximum discharge observed, that of Aug. 19, 1955; no flow at times (result of regulation).

Remarks. Records good. Discharge computed on basis of flow over spillway, through flood 

gates, and through fountain at toe of dam. Rating curves for flood gates ant? 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. At times of 

ice effect on spillway, flow computed from gage readings at permanent artificial control below dam, which was calibrated with sharp-crested weir. Water diverted from 

Shepaug River for municipal supply of Waterbury. Flow regulated since Septerrber 1933 

by Shepaug Reservoir (see p. 252).

Cooperation,--Records furnished by Bureau of Engineering, city of Waterbury.

Revisions (water years). MSP 971: 1936-42. WSP 1231: 1937(M) , 1940-41 (M), 1943-45(M) , 

1947, 1948(M) , 1950(M). WSP 1301: 1936.

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

l

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.

13

13

11

8.8

6.9

5.3

4.0

4.6

4.6

4.6

4.6

4.6

3.4

2.5

2.9

20

21

11

8.8

6.9

4.6

4.6

4.0

4.0

2.9

2.5

2.5

2.5

15

45

49

298.1

9.62

+ 14.9

Nov.

24

30

520

328

218

158

119

98

82

71

64

59

55

51

49

46

44

24

23

385

1,140

538

302

260

250

202

173

145

240

238

5,936

198

+4.4

Dec.

145

128

104

92

84

69

57

53

51

122

90

69

59

110

538

263

187

360

566

32T

191

158

138

122

95

71

76

87

145

234

226

5,011

162

O

Jan.

148

148

173

128

84

95

116

107

84

62

46

46

44

40

37

37

37

33

29

26

24

23

24

26

26

24

23

21

20

17

li

1,762

56.8

-1.1

Feb.

14

14

14

13

11

2.4 350~

76

28

21

45

122

55

35

29

28

28

42

55

35

79

55

116

187

110

84

69

98

-

1,815.4

64.8

+ 11.3

Mar.

169

214

128

104

84

98

141

84

84

155

238

2TT

169

128

104

162

198

125

104

84

92

120

198

148

238

226

151

113

101

107

128

4,409

142

0

Apr.

128

128

150

220

360

460

500

348

268

254

246

218

162

162

180

173

145

141

128

119

107

1SS

151

113

226

268

483

284

440

348

7,058

235

+0.7

May

250

180

151

128

119

158

122

107

90

84

95

71

57

53

49

40

42

37

33

29

8.8

4.0

2.4

25

11

17

8.8

2.4

2.4

30

49

2,055.8

66.3

+6.5

June

42

29

12

8.8

7.9

6.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.4

2.4

2.4

55

18

26

11

2.4

2.4

2.4

2.4

264.6

8.82

+ 15.3

July

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.

2.

2.

2.

2.

2.4

74.4

2.40

-1-4.9

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

960

440

238

138

300

6,480

1,650

576

328

226

180

128

104

95

7f

6?

51

2f

12,092.2

390

+ 18.5

Sept.

21

14

11

7.9

4.6

12

9.8

4.6

2.4

TT

2.4

6.1

27

23

28

24

23

21

20

19

14

14

12

34

84

33

16

65

97

60

712.2

23.7

-1-12.7

Adjusted for diversion and change in reservoir contents

Mean

Cf sm

24.5 

0.645 

0.74

202 

5.32 

5.94

Calendar year 1954: 

Water year 1954-55:

162 

4.26 

4.91

55.7 

1.47

1.70

76.1 

2.00 

2.08

142 

3.74 

4.31

236 

6.21 

6.93

72.8 

1.92 

2.21

Observed

Max 1,140 Min 2.4 Mean 73.7 

Max 6,480 Min 2.4 Mean 114

24.1 

0.634 

0.71

7.30 

0.192 

0.22

408 

10.74 

12.38

36.4 

0.958

1.07

Adjusted

Mean 88.0 Cfsm 2.32 In. 31.39 

Mean 121 Cfsm 3.18 In. 43.20

t Diversion and change in contents, equivalent in cubic feet per second, in Shepaug Reservoir, 

furnished by city of Waterbury.
246 HOUSATONIC RIVER BASIN

Shepaug River near Roxbury, Conn.

Location. Lat 41°32"59" , long 73°19'49", on right bank at downstream side of Wellers 

highway bridge on Wellers Bridge road 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 1955.

Gage. Water-stage recorder. Datum of gage is 281.98 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. 25 years, 249 cfs (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 50,300 cfs Aug. 19 (gage heigtt, 17.2 ft, from 

floodmarks), from rating curve extended above 3,500 cfs on basis of computation of flow 

over dam at gage heights 10.77 and 12.8 ft and slope-area determination at peak flow; 

minimum, 7.4 cfs Aug. 5 (gage height, 1.42 ft).

1930-55: Maximum discharge, that of Aug. 19, 1955; minimum, 2 cfe Oct. 6, 1951 

(gage height, 1.25 ft).

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

diverted from Shepaug Reservoir for municipal supply of city of Waterbury. Flow regulated by Shepaug Reservoir (see p. 252). Diurnal fluctuations from an unknown cause 

during low flow.

Revisions (water years). WSP 801: 1931-36. WSP 971: 1936, 1939-40, 1942. WSP 1301: 

1936(M), 1947(M).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Aug. 19 Aug. 19 to Sept. 3O

1.4

1.5

1.6 

1.8 

2.0

2.4 

3.0

4.0- 

5.0 

6.0

152

350

835

1,460

2,250

2.6 

3.0 

3.5 

4.0 

5.0 

6.0

63

111

183

272

502

880

7.0

9.0

11.0

13.0

14.0

1,450

3,280

6,600

12,100

16,500

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

124

117

110

104

98

92

86

81

77

75

73

72

68

65

66

128

117

92

79

75

70

65

63

60

60

55

57

62

88

147

157

2,683

86.5

+ 14.9

Nov.

124

T65

1,150

675

512

435

374

334

303

273

256

246

227

217

202

191

188

*174

168

742

2,170

1,150

890

752

780

675

575

535

780

675

15,938

531

+4.4

Dec.

550

484

430

374

358

310

280

250

230

334

306

266

246

408

1,030

700

545

1,020

1,510

890

700

600

535

484

430

374

350

342

417

700

625

15,878

512

O

Jan.

480

535

540

462

394

404

370

306

295

280

253

249

230

200

190

180

180

170

160

150

140

140

140

140

130

130

120

110

100

90

?5

7,363

238

-1.1

Feb.

95

95

S°

90

90

100

850

345

250

185

402

488

300

230

200

180

*316

284

250

240

270

242

484

430

330

280

266

303

_

7,685

274

+11.3

Mar.

534

555

382

370

554

552

476

558

366

448

565

525

462

412

370

550

535

408

370

342

*370

549

700

575

650

600

530

458

426

412

408

14,572

470

0

Apr.

399

404

493

687

876

1,030

1,090

945

855

752

700

625

575

545

550

516

476

*435

404

382

358

399

408

362

565

895

1,060

780

1,030

1,060

19,616

654

+0.7

May

918 Boa

725

650

575

550

516

466

455

382

346

310

277

256

236

217

211

194

176

160

128

102

92

117

133

179

145

117

102

182

174

9,879

319

+6.5

June

155

140

117

100

94

86

72

58

54

52

48

70

90

70

65

57

51

47

44

75

68

*68

166

T19

124

96

73

63

68

58

2,446

81.5

+ 15.5

July

52

48

43

39

37

54

51

28

23

26

82

52

36

50

26

34

32

29

27

24

22

19

17

26

31

21

18

16

14

12

11

940

30.3

+4.9

Aug.

11

11

9.6

9.2

7.S

8.3

10

16

11

9.2

9.6

32

328

1,770

973

635

494

1,860

q.5AOO

4,060

2,350

1,650

1,170

828

603

486

412

559

308

272

244

34,326.7

1,107

+ 18.5

Sept.

218

204

1S6

166

155

149

141

127

*118

111

108

103

102

107

106

101

94

90

87

87

*80

75

68

119

178

121

94

172

170

139

3,774

126

+ 12.7

Adjusted for diversion and change in reservoir contents

Mean 

Cfsm 

In.

101 

0.759 

0.88

53E 

4.02 

4.4£

Calendar year 1954: 

Water year 1954-55:

512 

5.85 

4.44

237

1.78 

2.05

285 

2.14 

2.25

470 

3.53 

4.07

655 

4.92 

5.49

326 

2.45 

2.82

Observed

Max 2,170 Mln 14 Mean 255 

Max 15,400 Mln 7.8 Mean 37O

96.8 

0.728 

0.81

35.2 

0.265 

0.31

1,125 

8.46 

9.75

139 

1.05 

1.17

Adjusted

Mean 269 Cfsm 2.O2 In. 27.43 

Mean 377 Cfsm 2.85 In. 38.50

21 (2:5 -.30 a.m.). 2,740 cfs (6.57 . ft): Dec. 18 (11 tc

a.m.) 3,25O cfs (7.17 ft) ; Aug. 19 (B a.m.) 50,300 cfs

Peak discharge (base. 1.500 efs). Nov. 21 

12 p.m.) 1,890 cfs (5.53 ft); Aug. 14 (s a. 

(17.2 ft).

* Discharge measurement made on this day.

t 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. 7-9, Jan. 13 to Feb. 7, Feb. 13-16, Feb. 19, 

20.
HOUSATONIC RIVER BASIN 247

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 1955.

Gage. Water-stage recorder. Datum of gage is 165.60 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. 23 years, 129 cfs.

Extremes. Maximum discharge during year, 29,400 cfs Aug. 19 (gage height, 21.8 ft, from 

floodmarks), from rating curve extended above 1,200 cfs by computation of flow-over-dam 

at gage height 16.0 ft and by slope-area determination of peak flow; minimum, 11 cfs 

Aug. 7 (gage height, 2.54 ft).

1932-55: Maximum discharge, that of Aug. 19, 1955; minimum, 3.3 cfs Aug. 27, 1949 

(gage height, 2.32 ft).

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

Infrequent regulation at low flow by mill upstream.

Revisions (water years) .--WSP 781: Drainage area. WSP 851: 1934(M), 1936(M) . WSP 1301- 

1933-34, 1935(M), 1937(M).

Rating table, water year 1954-55 (gage height, in feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

2.8 

3.1 

3.5 

4.0

29

59

116

208

4.5 

5.0 

6.0 

7.0

338

515

970

1,470

5.0

111

206

515

10.0

13.0

17.0

1,470

3,160

5,400

11,300

Discharge, in cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

67

63

58

57

52

49

48

45

45

45

45

43

41

40

40

102

65

54

50

47

45

43

41

39

38

37

38

43

80

111 

100

1,671

53.9

0.716

0.83

Nov.

75

105

*1,150 ~405

277

215

182

164

149

133

124

121

111

108

102

97

97

*92

94

344

1,080

430

294

272

349

247

217

206

395

264

7,879

263

3.49

3.89

Dec.

212

192

171

153

153

133

113

110

124

178

144

124

116

337

759

338

237

606

536

323

254

230

208

208

188

162

160

160

200

480 

294

7,603

245

3.25

3.75

Jan.

226

300

257

215

184

202

194

142

146

135

124

116

114

96

98

98

92

b85

*82

77

71

70

70

70

67

65

63

54

52

50 

47

3,662

118

1.57

1.81

Feb.

45

45

b45

46

41

54

650

146

100

92

232

223

114

100

89

77

*313

213

159

142

128

111

318

198

144

125

123

150

4,228

151

2.01

2.09

Mar.

324

268

179

217

187

472

353

217

219

242

230

208

196

173

161

269

250

200

170

150

200

450

400

420

380

310

270

230

200

190 

180

7,915

255

3.39

3.91

Apr.

170

170

190

350

500

550

400

320

250

220

*204

185

181

181

181

165

146

142

134

137

126

146

133

121

273

502

398

252

464

325

7,516

251

3.33

3.72

May

245

210

189

173

161

150

137

137

130

116

103

100

92

84

77

73

77

73

66

60

56

53

52

54

52

98

77

59

52

66

60

3,137

101

1.34

1.54

June

58

52

47

41

41

39

35

35

35

34

32

56

72

51

41

35

31

29

27

48

43

*58

48

45

73_

48

39

33

46

35

1,307

43.6

0.579

0.65

July

29

27

24

22

20

19

19

19

18

37

88

38

28

24

22

26

26

24

21

20

19

18

17

22

21

20

18

17

16

16

JJL

750

24.2

0.321

0.37

Aug.

15

14

13

12

12

12

13

21

16

14

15

60

380

1,360

348

181

126

1,550

*9,510

1,370

679

4P8

350

2TO

2F6

1F3

ITS

1£6

132

118 13 8

17,927

578

7.68

8.85

Sept.

113

98

89

82

76

86

70

60

*54

53

55

65

52

47

47

44

42

41

43

49

44

40

35

120

130

85

60

140

120

82

2,122

70.7

0.939

1.05

Calendar year 1954: Max 1,130 Min 16 Mean 133 Cfsm 1.77 In. 23.99

Water year 1954-55: Max 9,510 Min 12 Mean 180 Cfsm 2.39 In. 32.46

Peak discharge (base. 1.400 cfs) . Nov. 3 (7:30 a.m.) 1,620 cfs (7.29 ft); Nov. 21 (8 a.m.) 

1,790 cfs (7.59 ft); Dec. 15 (1:30 a.m.) 1,420 cfs (6.86 ft); Feb. 7 (7 a.m.) 1,570 cfs (7.25 ft); 

Aug. 14 (11 a.m.) 2,950 cfs (9.65 ft); Aug. 19 (6:30 a.m.) 29,400 cfs (21.8 ft).

* Discharge measurement made on this day.

Note.--Ho gage-height record Jan. 10, Mar. 17 to Apr. 10, Aug. 19, Sept. 22-29; discharge estimated 

on basis of weather records, engineer's notes, high-water marks and" time of peak for flood of 

Aug. 19, and records for Naugatuck River near Thomaston and Burlington Brook near Burlington.
248 HOUSATONIC RIVER BASIN

Housatonic River at Stevenson, Conn.

Location. Lat 41°23'05", long 73°10'05", 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 Eight Mile Brook, and at mile 19.2.

Drainage area.--1,545 sq mi.

Records available.--August 1928 to September 1955.

Gage. Water-stage recorder. Datum of gage is 24.98 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge.--27 years, 2,609 cfs (adjusted for storage and diversion).

Extremes. Maximum discharge during year, 69,400 cfs Aug. 19 (gage height, 23.43 ft); minimum, 37 cfs Oct. 7, 10 (gage height, 0.40 ft); minimum daily, 130 cfs July 31.

1928-55: Maximum discharge, 69,500 cfs Mar. 12, 1936 (gage heiglrt, 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 of peak flow; practically no flow at times, result of regulation.

Remarks. Records excellent. Ordinary flow completely regulated by Stevenson hydroelectrie" plant. Flow regulated by Lake Candlewood, Lake Lillinonah from February 1955, 

Lake Zoar and Shepaug Reservoir having a combined capacity of 8,500,000,000 cu ft (see 

p. 252) and by small diversion from basin at Shepaug Reservoir.

Revisions (water years).--WSF 711: 1929(M). WSP 781: Drainage area. WSP 1231: 1951. 

WSP 1301: 1933-34(ft), 1936-37.

Rating table, water year 1954-55 (gage height, In feet, and discharge,

1.3

2.0

3.0

4.0

5.0

7.0

127

285

660

1,250

2,130

4,860

>et per second) 

9.0

12.0

15.0

18.0

21.0

8,700

16,600

27,3OO

40,500

56,000

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

1,800

1,070

540

1,320

792

1,150

1,180

998 

704

596

1,150

763

1,180

988

2,410

380

599

1,440

1,570

»1,280

1,250

1,400 

918

275

- 805

824

1,380

494

2,380

592

1,140

33,368

1,076

+ 15

Nov.

1,450

996

6,600

8,040

7,200

6,420

5,340

4,280 

3,830

2,610

2,640

2,600

2,310

2,140

2,300

2,050

2,030

1,980

2,280

3,470

10,900

11,700 

9,450

8,260

7,400

6,060

5,340

4,700

»5,340

5,880

--------

145,596

4,853

+ 36

Dec.

5,520

5,020

4,700

4,240

2,930

3,570

2,700

2,070 

2,930

3,120

3,420

2,980

2,320

3,100

7,200

7,000

6,240

6,600

11,000

9,200

8,040

6,800

5,960

5,510

4,580

3,770

3,240

4,410

3,420

5,250

6,420

153,360

4,947

-28

Jan.

6,060

4,900

5,140

5,420

4,770

4,450

4,480

3,920 

1,490

3,630

3,170

2,310

2,630

2,490

1,760

1,700

2,400

2,010

1,570

1,550

1,170

1,610 

1,460

1,390

1,460

1,800

1,330

1,240

1,040

808

1,220

80,378

2,593

-153

Feb.

1,110

970

1,200

452

1,010

1,560

4,970

5,460 

2,660

2,860

2,890

3,080

1,430

2,470

2,180

2,010

3,310

3,460

2,300

1,540

2,380

2,260 

3,230

»4,670

4,560

4,460

3,120

2,880

_

--------

74,482

2,660

+ 131

Mar.

4,130

5,090

5,230

5,450

5,180

4,390

4,960

4,410 

3,490

3,740

4,820

5,900

5,060

5,620

5,640

5,880

5,500

5,320

5,270

3,900

4,090

5,810 

6,160

6,020

5,880

5,700

5,700

4,520

4,120

3,940

3,800

154,720

4,991

+ 14

Apr.

3,780

3,750

3,990

5,730

6,160

6,600

8,260

8,260 

7,400

7,000

6,600

6,240

6,240

6,240

5,520

4,620

4,780

4,960

4,300

4,160

4,080

3,730 

3,440

3,770

4,870

5,040

6,420

7,200

7,820

8,260

--------

169,220

5,641

+ 172

May

8,040

7,400

6,600

 5,520

4,550

4,450

4,480

3,160 

3,390

3,440

3,580

3,020

2,750

2,370

2,020

2,100

2,110

1,510

2,420

1,420

1,290

1,320 

1,360

1,350

1,850

1,960

2,180

750

1,380

288

1,110"

89,168

2,876

-216

June

1,960

 

2,180 834-

1,060

922

1,210

1,170

920 

990

935

666

704

1,040

802

750

1,040

286

149

TS?

1,160

1,160

720 

1,100

1,090

1,310

982

1,060

853

850

1,180

--------

29,235

974

+ 56

July

490

363

346

325

703

468

874

1,000 

450

330

801

863

473

498

8OO

404

»384

658

460

504

839

~367 1,070 

338

498

421

264

702

148

148

130

16,119

520

-74

Aug.

353

294

372

250

306

194

153

1,380 

346

459

330

1,350

2,820

5,180

6,600

5,790

3,880

5,150

41,000

54,600

31,700

20,OOO 

15,100

13,000

11,900

10,600

8,500

5,920

4,040

2,900

2,460

257,127

8,294

+54

Sept.

2,530

2,320

1,840

1,760

1,790

2,000

1,390

1,350

2,100

1,090

855

1,320

1,320

1,350

1,450

1,160

242

172

5,260'

1,090

237

252

674

1,820

1,610

1,330

491

345

372

277

37,817

1,261

+211

Adjusted for diversion and change In reservoir contents

Mean 

Cf sm 

In.

1,091 

0.706 

0.81

4,88S 

3.1 

3.5.

Calendar year 1954: 

Water year 1954-55:

) 4,919 

3.18 

3.67

2,440 

1.58 

1.82

2,791 

1.81 

1.88

5,005 

3.24 

3.74

5,813 

3.76

4.20

2,660 

1.72 

1.98

Observed

Max 11,700 Mln 58 Mean 2,734 

Max 54,800 Mln 130 Mean 3,399

1,030 

0.667 

0.74

446 

0.289 

0.33

8,348 

5.40 

6.23

1,472 

0.953 

1.06

Adjusted

Mean 2,758 Cfsm 1.79 In. 24.23 

Mean 3,415 Cfsm 2.21 In. 29.99

- ._. - ,_-Se, ii.uuu crs).--NOV. Zl (lo a.m.) lid.vou c 

11,700 cfs (10T15 ft); Aug. 19 (11 p.m.) 69,400 cfs (23.43 ft). 

* Discharge Discharge measurement measurement made on this dayy.

t Change In contents In Lake Candlewood, Lake Lillinonah, Lake Zoar and Shepaug Reservoir, and

lall diversion from basin at Shepaug Reservoir, equivalent in cubic feet per second; furnished by

mnpptlruh T,10"ht fc PnwpT1 C.n. and p-1 hv nf* UahAT'hiiT'v.

, 

Connecticut Light & Power Co. and city of Waterbury
HOUSATONIC RIVER BASIN 249

Naugatuck River near Thomaston, Conn.

Location.--Lat 41°42'15", long 73°03 I 53", on right bank near downstream side of Twomile 

Bridge, 250 ft downstream from New York, New Haven and 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 1955.

Gage.--Water-stage recorder. Datum of gage is 389.44 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average dls charge.--25 years, 144 cfs.

Extremes.--Maximum discharge during year, 41,600 cfs Aug. 19 (gage height, 24.0 ft, from 

floodmark), from rating curve extended above 6,000 cfs on basis of slope-area determinatiai of peak flow; minimum, 16 cfs Aug. 3; minimum gage height, 0.48 ft Sept. 22.

1930-55: Maximum discharge, that of Aug. 19, 1955; minimum, about 7 cfs Mar. 12, 

1940 (result of freezeup); minimum daily, 13 cfs Oct. 24, 1931; minimum gage height, 

that of Sept. 22, 1955.

Remarks. Records excellent except those for periods of shifting control or nc gage-height 

record, which are fair. Slight diurnal fluctuation.

Revisions (water years). WSP 741: 1931-32. WSP 781: Drainage area. WSP 821: 1936(M). 

WSP 1111:1939(M).

Rating tsble, water year 1954-55, except periods of ice effect (gage

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

(Shifting-control method used Aug. 30 to Sept. 30)

2.0 

2.5 

3.0

155

310

540

4.0

6.0

9.0

12.0

15.0

1,160

2,880

6,250

10,900

16,700

Discharge, in cubic feet per second, water year October 1954 to September 1935

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Cfsm

In.

Oct.

42

40

37

38

38

39

39

35

33

34

35

36

35

*34

40

104

63

50

44

43

86

114

34

35

35

35

39

85

98

106

1,562

50.4

0.701

0.81

Nov.

77

1T7

1,210

525

314

225

180

155

139

119

111

107

97

93

90

87

87

83

88

479

1,440

530

310

271

342

264

210

204

483 

338

8,775

293

4.08

4.55

Dec.

231

195

162

139

137

115

b97

blOO

115

172

144

117

107

470

960

382

244

829

750

362

258

225

201

189

168

141

144

144

216 

515

370

8,399

271

3.77

4.35

Jan.

240

289

275

222

175

195

180

bl!9

bl!7

126

111

91

90

b67

b70

b74

b73

b63

64

57

55

55

56

57

57

55

52

48

45

42

*b56

3,258

105

1.46

1.68

Feb.

42

T2

42

42

42

b66

747

132

83

76

354

296

106

85

83

79

109

113

106

122

124

102

369

246

146

115

111

155

-

4,135

148

2.06

2.14

Mar.

377

331

175

146

128

197

213

141

175

328

400

334

254

198

162

301

286

*180

155

139

150

296

470

382

450

358

272

219

195 

201

228

7,841

253

3.52

4.06

Apr.

234

244

254

366

520

664

670

430

303

286

289

250

231

*225

240

237

204

175

160

153

144

218

210

172

539

694

595

350

786

10,363

345

4.80

5.36

May

330

268

237

201

214

244

180

170

168

144

128

111

100

88

80

76

79

141

84

47

42

37

41

57

62

71

51

43

39 

107

77

3,717

120

1.67

1.92

June

64

57

49

43

41

39

36

43

44

36

34

88

85

*57

45

37

33

29

26

19

38

119

102

63

66

47

38

41

42 

36

1,527

50.9

0.708

0.79

July

33

28

27

26

26

25

26

24

24

47

30" 51

26

25

25

30

32

38

35

28

28

26

25

24

23

24

23

23

23 

20

18

863

27.8

0.387

0.45

Aug.

19

2o

19

21

25

42

26

31

24

23

35

71

433

1,690

442

187

110

2,160

»a!4,700

a2,320

a950

a550

3350

3280

a220

3190

180

3170-

3150 

146

141

25,725

830

11.5

13.26

Sept.

130

3104

*97

88

90

94

79

66

58

57

57

102

77

55

52

53

44

43

100

64

37

36

37

166

185

111

79

203

TBT

100

2,615

87.2

1.21

1.35

Calendar year 1954: Max 1,440 Min 19 Mean 145 Cfsm 2.02 In. 27.32

Water year 1954-55: Max 14,700 Mln 18 Mean 216 Cfsm 3.00 In. 40.72

Peak discharge (base, 1,500 cfs). --Nov. 3 (6 a.m.) 1,630 cfs (4.58 ft); Nov. 21 (3:30 a.m.

2,300 cfs (5.36 ft); Dec. 14 (12 p.m.) 1,800 cfs (4.80 ft); Dec. 18 (5 p.m.) 1,800 cfs (4.82 ft) ;

Feb. 7 (3 a.m.) 1,840 cfs (4.83 ft); Aug. 14 (7 a.m. 3,750 cfs (6.90 ft); Aug. 19 (about 5:30 a.m.)

41,600 cfs (24.0 ft).

* Discharge messurement msde on this day.

a No gsge-helght record; discharge estimated on bssis of graph based on hlgh-wat 

of pesk and existing record.

b Stsge-dischsrge relstion affected by ice

;er mark and time
250 HOUSATONIC RIVER BASIN 

Leadmine Brook near Thomaston, Conn.

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 25- miles northeast of Thomaston, Lltchfield 

County.

Drainage area. 24.0 sq mi.

Records available. September 1930 to September 1955.

Gage. Water-stage recorder. Datum of gage Is 401.23 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. 25 years, 48.0 cfs.

Extremes.--Maximum discharge during year, 10,400 cfs Aug. 19 (gage height, 13.1 ft, from 

floodmarks In gage house), from rating curve extended above 2,600 cfs on basis of contracted-opening determination at peak flow; minimum, 0.65 cfs Aug. 7 (gage height, 

2.01 ft).

1930-55: Maximum discharge, that of Aug. 19, 1955; minimum, 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 no gage-height record, 

which are fair. Occasional low water regulation.

Revisions (water years).--WSP 781: Drainage area. WSP 1301: 1947. WSP 1331: 1931(M), 

 1933(M), 1934, 1935 M), 1936, 1937(M), 1938, 1939-40(P), 1942(P), 1943-44(M), 1945, 

1947(M), 1949, 1951(P), 1953(P).

Rating tables, water year 1954-55, except periods of Ice effect (gage 

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

Oct. 1 to Aug. 19 Aug. 19 to Sept. 30

2.0 0.6

2.2 2.0

2.5 5.6

2.7 11

3.0 26

3.3

3.8 

4.5 

5.5 

6.5

520

940

2.4 

2.6 

2.8 

3.0 

3.4 

4.0

3.3

6.6

12

20

43

102

4.8 

5.5 

7.0 

9.0 

11.0

234

400

990

2,420

5,200

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Cfsm

In.

Oct.

15

15

13

14

14

13

13

11

11

11

11

11

10

*9.7,

12

48

26

19

16

15

14

13

12

11

10

10

10

11

37

SO

37

522.7

16.9

0.704

0.81

Nov.

26

43

462

172

101

74

58

48

44

38

35

34

31

31

30

28

28

28

30

175

258

124

85

81

129

82

67

66

162

100

2,670

89.0

3.71

4.14

Dec.

74

61

52

46

44

41

38

36

4lT

60

46

38

36

190

570

143

94

256

216

119

85

75

65

65

56

56

46

50

79

202

127

2,908

93.8

3.91

4.51

Jan.

85

113

97

76

61

69

66

41

40

41

39

33

32

23

25

26

25

23

22

20

19

?r>

20

20

18

18

18

16

14

12

*10

1,142

36.8

1.53

1.76

Feb.

13

14

13

12

T2

18

~50 220

31

28

95

123

50

35

31

29

35

40

35

40

43

37

150

88

54

44

41

57

-

1,438

51.4

2.14

2.23

Mar.

130

98

61

49

45

71

81

56

360

a 130

a 140

390

a70

360

350

3110

380

*a65

55

49

50

118

186

TTa

170

132

102

81

75

75

73

2,790

90.0

3.75

4.32

Apr.

70

68

71

141

215

228

176

110

85

76

69

62

61

*64

66

57

49

46

44

42

39

66

58

52

188

198

176

105

260

156

3,098

103

4.29

4.79

May

~~BO 101

67

59

55

69

52

51

47

39

36

31

28

26

a24

a 23

a21

20

18

16

14

12

T2

21

20

38

29

18

15

28

21

1,091

35.2

1.47

1.70

June

18

15

12

10

9.7

8.4

7.4

7.6

8.1

7.4

6.7

20

18

*12

9.4

7.1

5.8

5.0

4.5

14

9.1

8.8

56

14

16

10

7.6

13

25

11

376.6

12.6

0.525

0.59

July

7.6

5.6

4.9

4.0

3.4

2.8

2.7

2.4

2.2

2.0

9.6

4T5

3.4

2.6

2.1

2.1

2.3

2.9

3.2

2.5

1.9

1.6

1.4

1.5

1.4

1.4

1.2

1.3

1.1

1.1

iiH.

88.7

2.86

0.119

0.14

Aug.

0.9

.8

.8

.8

_^1

.7

.8

2.0

1.8

1.4

1.3

11

207

417

113

51

28

892

*3,660

*467

205

127

88

64

50

41

35

31

25

22

23

6,569.0

212

8.83

10.18

Sept.

22

18

*17

15

13

18

15

11

9.0

8.3

8.3

11

9.0

7.1

6.8

6.6

5.9

5.5

5.5

12

14

6.5

44 4.4

52

20

14

53

3T

19

481.9

16.1

0.671

0.75

Calendar year 1954: Max 462 Mln 1.6 Mean 47.5 Cfsm 1.98 In. 26.87

Water year 1954-55: Max 3,660 Mln 0.7 Mean 63.5 Cfsm 2.65 In. 35.92

Peak discharge (base, 650 efs).--Nov. 3 (5 a.m.) 700 cfs (5.93 ft); Dec. 14 (11:30 p.m.) 890 cfs 

(6.38 ft); FebT 6 (3 a.m.) 760 cfs (6.08 ft); Aug. 14 (6 3.m.) 940 cfs (6.50 ft); Aug. 19 (5 3.m.) 

10,400 cfs (13.1 ft).

* Discharge measurement made on this day.

a No gage-height record; dlschsrge estimated on basis of recorded range In stage, weather records, 

snd records for stations on nearby streams.

Note.--^taae-dlseharae relation affected by Ice Dec. 6-9, 21-23, Jan. 8, 9, 12-21, 28-31, Feb.
HOUSATONIC RIVER BASIN 251

Naugatuck River near Naugatuck, Conn.

Location.--La t 41°28'15", long 73°03'10", on left bank 0.2 mile upstream from Beacon Hill 

Brook, 1.3 miles 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 19£5.

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. 33 years (1918-24, 1928-55), 470 cfs (adjusted for storage and 

diversion).

Extremes. Maximum discharge during year, 106,000 cfs Aug. 19 (gage height, 25.7 ft, from 

floodmarks), from rating curve extended above 9,000 cfs on basis of slope-area determinations at gage heights 12.4 and 25.7 ft; minimum, 65 cfs July 31 (gage height, 

0.28 ft); minimum daily, 71 cfs July 31.

1918-24, 1928-55: Maximum discharge, that of Aug. 19, 1955; 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 excellent except those for period of no gage-height record, which are 

fair. Plow regulated by plants above station during low stages, and by Pitch, Morris 

and Wigwam Reservoirs having a combined capacity of 550,000,000 cu ft. Flow increased 

by diversion from Shepaug Reservoir into Naugatuck River basin.

Revisions (water years). WSP 781: Drainage area. WSP 1171: 1918-24, 1928-49.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23 

24

25

26

27

28

29 

30

31

 total

Mean

(t)

Oct.

261

244

224

227

227

206

205

201

186

174

192

192

186

186

205

463

297

251

230 

221

211

290

210

171

183

189

205

217

361 

522

4TT

7,550

244

-6.2

Nov.

343

571

5.910

1,980

1,170

866

710

622

562

500

465

450

411

384

384

371

363

347

363 

1,500

3,090

1,640

1,050 

914

1,260

946

766

724

1,460 

1,170

29,092

970

+5.3

Dee.

843

703

610

532

510

470

*406

398

145

654

550

460

430

1,320

4.240

1,690

1,110

2,440

2,850 

1,490

1,130

954

836 

808

724

610

616

610

780 

1,860

1,490

32,564

1,050

-0.6

Jan.

986

1,070

1.150

874

731

773

801

574

520

520

485

430

425

359

351

355

347

320

308 

290

261

286

275 

286

279

272

265

234

227 

195 20"l

14,430

465

-13.0

Feb.

208

205

189

189

186

267

2.260

653

411

380

776

1,260

490

398

393

355

759

654

515 

505

568

460

1,110 

*1,050

622

510

480

574

-

16,427

587

+4.4

Mar.

1,190

1,330

773

780

634

1,120

1,300

787

724

1,080

1,300

1,130

898

773

668

940

1,070

759

640 

592

710

1,430

1.970 

1,360

1,500

1,190

1,030

855

730 

700

688

30,651

989

+0.3

Apr.

658

652

676

1,190

1,510

1,830

1,780

1,230

890

790

760

700

670

652

658

618

558

515

495 

475

*445

54T

580 

500

1,140

1,830

1,630

995

1.890 

1,500

28,358

945

0

May

T90~ 960

730

634

574

646

536

495

510

445

398

375

345

309

280

274

288

266

317 

229

201

172

187 

213

210

300

270

204

170 

208

249

11,783

380

-8.2

June

223

198

181

159

144

159

154

149

159

152

139

211

260

207

172

157

*149

132

114 

T93

195

187

288 

235

223

175

162

175

192 

167

5,411

180

-21.1

July

149

123

108

114

112

110

108

102

98

212

252

T42

110

104

94

127

100

114

132 

121

119

117

102 

120

110

110

110

108

104

85

71

3,688

119

-25.6

Aug.

91

96

98

96

102

108

143

206

114

108

127

388

1,280

3,320

1,150

500

345

6,460

« 56, 400 

9,2~7C

2,860

1,600

1,100 

900

700

600

550

520

450 

430

420

90,532

2,920

+0.3

Sept.

400

320

300

270

270

290

250

200

170

150

140

280

250

160

150

150

130

120

250 

190

140

120

110 

loTJ

600

450

250

540

500 

300

7,850

262

-26.1

Adjusted for diversion and change in reservoir contents

Mean 

Cf sm 

In.

238 

0.967 

1.11

97E 

3.9E 

4.4!

Calendar year 1954: 

Water year 1954-55:

) 1,049 

4.26 

' 4.91

452 

1.84 

2.12

591 

2.40 

2.50

989 

4.02 

4.64

945

3.84 

4.28

372 

1.51 

1.74

Observed

Max 4,240 Mln 85 Mean 541 

Max 56,400 Mln 71 Mean 763

159 

0.646 

0.72

93.4 

0.38C 

0.44

2,920 

13.9 

13.72

236 

0.959 

1.07

Adjusted

Mean 527 cfsm 2.14 In. 29.08 

Mean 755 Cfsm 3.07 In. 41.67

Peak discharge (base, 4.000 efs).--Mov. 3 (10 a.m.) 5,530 efs (5.56 ft); Nov. 21 (8 a.m.) 4,280efs 

(4.99 ft); Dee. 15 (S a.m. J 6,500 efs (6.20 ft); Dec. 18 (9 p.m.) 5,150 efs (5.48 ft); Feb. 7 (6a.m. J 

4,120 cfs (4.90 ft); Aug. 14 (9 a.m.) 6,550 cfs (6.43 ft); Aug. 19 (about 10:3O a.m, ) 106,000 efs 

(25.7 ft).

* Discharge 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 Waterbury.

Mote. No gage-height record Aug. 17 to Sept. 30; discharge estimated on basis of records for upstream stations near Thomaston and, for period Aug. 18-21, on one or more daily stage observations 

at Wafcerbury, Naugatuek, and Ansonia.
252 HOUSATONIC RIVER BASIN 

Reservoirs in Housatonic River basin

Lake Candlewood (Rocky River Reservoir) on Rocky River, lat 41°35'00", long 73"26'00", 

2 miles west of Mew Milford, Litchfield County, Conn. Drainage area, 40.4 sq mi. Completed in 1928" for storage of water for power; impounds water pumped from the Housatonic 

River during offpeak power periods. Usable capacity, 6,210,000,000'cu ft. Records 

available, August 1928 to September 1955. Records furnished by The Connecticut Light 

& Power Co.

Shepaug Reservoir on Shepaug River, lat 41°43'24", long 73°17'37", 1 mile north of Woodville, 

Litchfield County, Conn. Drainage area, 38.0 sq mi. Completed in 1933 for storage of 

water for municipal supply. Usable capacity, 77,000,000 cu ft. Records available, 

February 1933 to September 1955. Records furnished by Bureau of Engineering, city of 

Waterbury, Conn.

Lake Lillinonah on Housatonic River, lat 41 0 26'52", long 73 0 17'49", 2.3 miles north of 

Newtown, Pairfield County, Conn. Drainage area, 1,392 sq mi. Completed in 1955 for 

storage of water for power. Usable capacity, 219,000,000 cu ft. Records available, 

February to September 1955. Records furnished by The Connecticut Light & Power Co.

Lake Zoar on Housatonic River, lat 41 0 23'05", long 73°09'55", at Stevenson, Fairfield County, 

Conn. Drainage area, 1,545 sq mi. Completed in 1919 for storage of water for power. 

Usable capacity, 331,000,000 cu ft. Records available, August 1928 to September 1955. 

Records furnished by The Connecticut Light & Power Co.

Pitch. Morris, and Wigwam Reservoirs on Branch Brook, 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, lat 41°41'34 M , long 73"09'04", 4 miles northwest 

of Thomaston, Litchfield County, Conn. Drainage area, 5.74 sq mi. Completed in 1943. 

Total capacity, 190,000,000 cu ft. Records available, November 1943 to September 1955. 

Morris Reservoir, lat 41°40'29", long 73°08'39", 3? miles west of Thomaston, Litchfield 

County, Conn. Drainage area, including Pitch Reservoir, 13.3 sq mi. Completed in 1913. 

Total capacity, 265,000,000 cu ft. Records available, May 1918 to September 1924, September 1928 to September 1955. Wigwam Reservoir, lat 41°39 T 50", Ion? 73"07 T 41", 3 miles 

west of Thomaston, Litchfield County, Conn. Drainage area, including Pitch and Morris 

Reservoirs, 18.1 sq mi. Total capacity, 97,000,000 cu ft. Records available, May 1918 

to September 1924, September 1928 to September 1955. Records furnished by Bureau of 

Engineering, city of Waterbury, Conn.

Month-end contents, water year October 1954 to September 1955

Date

Dec. 31............... .

Calendar year 1954 . . .

Mar. 31................

Sept. 30.. ..............

Water year 1954-55...

Date

Dec. 31................

Calendar year 1954...

Mar. 31............. ...

Aug. 31................

Sept. 30. ...............

Water year 1954-55...

Lake Candlewood 

(Rocky River Reservoir)

Contents 

(m.c.f .)

6,186 

6,149 

6,149 

6,125

-

5,907 

6,040 

6,137 

6,100 

5,979 

6,040 

5,798 

6,052 

5,834

-

Change In

contents 

(equivalent 

in cfs)

-14 

0 

-9

+6

-81 

+55 

+36 

-14 

-45 

+24 

-90 

+95 

-84

-11

Lake Zoar

249.0 

285.1 

368.0 

317.0

-

127.9 

244.6 

183.2 

377.3 

213.6 

267.0 

303.3 

123.7 

226.9

-

+13.4 

+32.0 

-19.0

+4.0

-70.6 

+48.2 

-22.9 

+74.9 

-61.1 

+20.6 

+13.6 

-67.1 

+39.8

-.7

Shepaug Reservoir

Contents 

(m.c.f.)

96.7 

97.2 

99.6 

99.6

-

96.7 

98.8 

98.8 

100.6 

97.5 

94.6 

67.2 

97.0 

98.0

-

Change In 

contents 

(equivalent 

In cfs)

+0.2 

+ .9 

0

+ .1

-1.1 

+ .9 

0 

+ .7 

-1.1 

-1.1 

-10.2 

+11.1 

+ .4

0

Pitch, Morris, and 

Wigwam Reservoirs

508.2 

531.1 

553.8 

552.3

-

517.4 

553.4 

554.2 

554.3 

552.6 

540.4 

512.2 

532.9 

497.3

-

+8.5 

+8.8 

-.6

+ .1

-13.0 

+14.9 

+ .3 

0 

-.6 

-4.7 

-10.5 

+7.7 

-13.7

-.3

Lake Lillinonah

Contents 

(m.c.f.)

1

-

0 

39 

40 

328 

16 

8 

3 

24 

652

-

Change In 

contents 

(equivalent 

in cfs)

1

-

0 

+16 

0 

+111 

-116 

-3 

-2 

+8 

+242

+21
SAUGATUCK RIVER BASIN 253

Saugatuck River near Westport, Conn.

Location.- -La t 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 anc1 dam of 

Dorr Co., 2 miles north of Westport, Fairfield County, and 5| miles upstream from 

mouth.

Drainage area. --77. 5 sq mi.

Records available. --September 1932 to September 1955.

~Gage . Water- stage recorder. Datum of gage is 18.16 ft above mean sea level, dstum of

Average discharge. --23 years, 142 cfs (adjusted for storage and diversion from Saugatuck 

Reservoir since October 1941).

Extremes . Maximum discharge during year, 2,530 cfs Aug. 19 (gage height, 8.04 ft); minimum, 1.0 cfs July 8, 9 (gage height, 2.00 ft); minimum daily, 1.9 cfs July 9.

1932-55: Maximum discharge, 5,310 cfs Mar. 12, 1936 (gage height, 11.30 ft), from 

rating curve extended above 2,400 cfs, verified by computation of flow-over-Sam for 

flood of September 1938 (gage height, 10.28 ft); minimum, 0.2 cfs Oct. 19, 1?53 (gage 

height, 1.92 ft); minimum daily, 1.0 cfs Aug. 11, 1939.

Remarks. Records excellent except those for periods of ice effect, which are gcod. 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 at dam of Dorr Co.

Revisions (water years). --WSP 781: Drainage area. WSP 1201; 1935.

Rating table, water year 1854-55, except periods of Ice effect (gage 

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

2.0

2.1

2.2

2.3

2.4 

2.6 

3.0

1.0

3.0

6.5

11

18

36

91

3.5 

4.0 

5.0 

6.0 

7.0 

8.0

195

335

700

1,180

1,790

2,500

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21 

22

23

24

25

26

27

28

29

30

31

Total

Mean

(t)

Oct.

12

12

12

17

16

15

17

17

8.8

8.5

11

11

9.6

9.2

11

12

12

12

14 

14

14 

11

11

10

10

10

10

11

33

49

60

479.9

15.5

+10.2

Nov.

60

73

369

234

138

93

74

61

48

43

41

36

35

30

28

26

26

27

*27 

104

465 

529

193

173

268

203

148

135

240

195

3,922

131

+134.6

Dec.

142

166

183

166

162

153

114

103

T23

208

183

155

140

246

*785

520

360

480

720 

476

347 

273

262

262

254

221

200

183

203

571

540

8,901

287

+6.9

Jan.

376

357

335

279

232

226

240

169

157

157

138

121

114

105

86

88

83

77

61 

b53

b43 

36

42

56

48

42

40

34

b30

b27

b25

3,877

125

+5.0

Feb.

b27

b26

b25

¥58

b30

b50

"556 465

138

112

140

276

b!85

b!25

98

85

287

299

198

173

160 

133

216

 268

195

164

164

173

_

4,466

160

+45.7

Mar.

218

276

221

326

329

382

472

320

276

268

248

234

232

208

178

262

270

216

195 

190

221 

560

740

487

372

366

360

285

237

221

190

9,356

302

+0.7

Apr.

181

-166

185

431

441

369

350

273

229

211

195

169

169

171

178

169

140

138

123 

123

m160

138

188

273

296

224

352

382

6,702

223

+1.3

May

'245 293

195

 171

157

153

123

118

121

100

91

83

75

66

64

62

62

49

46

36

24 

21

20

22

20

20

20

17

14

16

18

2,519

81.3

+2.1

June

22

17

17

17

14

13

12

12

11

TT

11

30

33

21

16

13

12

11

11 

16

14 

12

 14

21

29

22

17

16

14

12

491

16.4

+9.0

July

11

11

8.8

7.8

7.0

7.0

7.4

13

ill

6.5

ii

9.6

7.0

6.2

5.8

13

18

11

8.3 

7.4

6.5 

5.8

5.4

6.5

8.3

6.5

6.2

5.4

4.8

3.0

4.4

248.5

8.02

-1.75

Aug.

4.4

4.4

4.0

4.0

4.0

3.7

474

4.8

4.0

4.0

4.0

4?

174

183

93

51

31

201

1.92") 

1,370

75'5 

453

351

244

173

133

118 101.

85

74

74

6,689.7

216

+91.6

Sept.

72

64

56

48

44

58

51

31

22

19

20

20

18

17

17

16

15

14

16 

31

20 

*15

12

TT

57

34

30

82

S3

54

1,080

36.0

+13.4

Adjusted for diversion and change In reservoir contents

Mean 

Cfsm 

In.

25.7 

0.332 

0.38

266 

3.42 

3.82

Calendar year 1954: 

Water year 1954-55:

294 

3.79 

4.37

130 

1.68 

1.94

206 

2.66 

2.77

303 

3.91 

4.51

224 

2.89 

3.22

83.4 

1.08 

1.24

Observed

Max 785 Mln 1.4 Mean 97.3 

Max 1,920 Mln 1.9 Mean 134

25.4 

0.328 

0.37

6.27 

0.081 

0.09

308 

3,97 

4.58

49.4 

0.637 

0.71

Adjusted

Mean 121 Cfsm 1.56 In. 21.26 

Mean 160 Cfsm 2.06 In. 28.01

Peak dlseha le. 900 ofs). Aug. 19 (10:30 a.m.) 2,530 cfs (8.04 ft).

* Discharge measurement made on this day. 

t Change In contents and diversion, equivalent In cubic feet per second, from Saugatuck Res 

for domestic water supply. No adjustments made for Aspetuck Reservoir. 

b Stage-discharge relation affected by Ice.
254 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Measurements of streamflow in the North Atlantic slope basins, Maine to Connecticut, 

made at points other than regular gaging stations are given in the following table. Most 

of these measurements were made during periods of base flow when streamflow is primarily 

from ground-water storage. Measurements believed to have been made under base-flow conditions are identified by an asterisk (*) to the left of the discharge figure. These 

measurements when correlated with the simultaneous discharge of a nearby stream where 

continuous records are available will give a picture of the low-flow potentiality of 

stream. The column headed, "Measured previously" shows the water years in which measurements were made at the same, or practically the same, site.

Determinations of peak flow at points other than regular gaging stations are given in 

a separate table below.

Discharge measurements made at points other than gaging stations in the Nor^.h Atlantic slope 

basins, Maine to Connecticut during water year 1955

Menunketesuck River basin, Conn.

Stream

Menunketesuck 

River.

Tributary to

Long Island 

Sound.

Location

Lat 41°21'12", long 72°32'2l", 

0.4 mile downstream from State 

Highway 80 and 1.3 miles east 

of Killingworth.

Drainage 

area 

(sq mi)

6.4

Measured1 

previously 

(water 

years )

1943,1945 

1946, 

1949-51, 

1953-54

Date

Oct. 11 

June 17 

July 19

Discharge 

(cfs)

*4.09 

*2.19 

*.475

Qulnnlplac River basin, Conn.

Eightmile 

River.

Quinnipiac 

River.

Lat 41°36'54", long 72°55'24n , at 

bridge on wood's road, 1.6 miles 

northwest of Southington.

6.42 1954 June 21 

July 18

*8.45 

*5.40

The following table contains determinations of peak discharge made at crest stage by 

indirect methods or by current meter or computed from rating curve at points other than 

regular gaging stations.

Determinations of peak discharge during water year October 1954 to September 1955

Stream

Mumford River

Blacks tone

River.

Crystal Lake

Brook.

Willimantic

River.

Roaring Brook

Wales Brook. .

Hamilton Reservoir

Outlet.

Quinebaug

River.

Upper Sibley

Pond Outlet.

Cady Brook. . .

Cohasse Brook

Lebanon Brook

Alder Meadow

Brook.

French River.

Tributary to

Blacks tone

River.

Narragansett

Bay.

Edson Brook.

Shetucket

River.

Williamantic

River.

Mill Brook

(head of

Quinebaug

River) .

.... do ......

Shetucket

River.

Cady Brook. .

Qulnebaug

River.

....do......

....do......

Bartons

Brook.

Quinebaug

River.

Location

Lat 42°04'24", long 71°42'58", at

Manchaug Road Bridge at East

Douglas, Mass, 0.1 mile below

Southwick Brook (discontinued).

Lat 42°00'54", long 71°33'15", at

Tupper Mill Dam at Blackstone,

Mass . , ^ mile above Branch

River.

Lat 41°57'50", long 72°21'50",

0.6 mile southwest of West

Stafford, Conn.

Lat 41°56'34", long 72°18'2l",

0.8 mile downstream from Stafford Springs, Conn.

Lat 41°54 l 391r , long ?2°16'15", at

culvert on State Highway 15,

2.6 miles northeast of West

Willlngton, Conn. 

Lat 42°04'50n , long 72°12'05",

0.15 mile above unnamed tributary and 1.3 miles northeast

of Wales, Mass.

Lat 42°04'44", long 72°09'16",

1.1 miles below outlet of

Hamilton Reservoir and 2{ miles

southwest of Fiskdale, Mass.

Lat 42°06'31", long 72°07'26", at

bridge 0.5 mile southwest of

Fiskdale, Mass, and 0.7 mile

below mouth of Long Pond Outlet.

Lat 42°08'54", long 72°00'36", at

outlet of Upper Sibley Pond,

0.9 mile northwest of Charlton

City, Mass.

Lat 42°05'28", long 72°01 I 19",

^ mile northeast of Southbridge, Mass, and 1.2 miles

above mouth.

Lat 42°03'39", long 72°02'49", at

Wells Pond Dam, 0.5 mile south

of Southbridge, Mass.

Lat 42°03'51", long 72°00'43", at

dam 0.15 mile above mouth and

% mile southeast of Southbridge,

Mass.

Lat 42°12'58", long 71°57'28",

0.1 mile above mouth and

2-J miles southeast of Spencer,

Mass.

Lat 42°09'19", long 71°53'05", at

dam at North Oxford, Mass.,

1 mile below Texas Pond.

Drainage 

area 

(sq mi)

27.8

259

5.83

53.5

18.0

3.71

24.2

67.5

2.23

12.0

2.87

10.0

2.18

24.1

Measured 

previously 

(water 

years)

1939-51

1936

1936,1938

1936,1938

Date

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Discharge 

(cfs)

2,140

18,800

784

14,500

2,920

1,080

6,540

15,400

1,240

26,300

1, 280

1,140

1,530

8,540
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 255

Determinations of peak discharge during water year October 1954 to September 1955--Continued

Stream

South Pork

Little

River.

Quinebaug

River.

Do........

Manhan River.

Do........

Bachelor

Brook.

Stony Brook, .

Ware River

(head of

Chicopee

River) .

Fivemile

River.

Lamberton

Brook.

Quaboag

River.

O'Nell Brook.

Blodgett Mill

Brook.

Foskett Mill

Stream.

Chicopee

Brook.

Conant Brook.

Broad Brook. .

Twelvemile

Brook.

Mill River. ..

Walker Brook.

Stage Brook

(head of

Bradley

Brook) .

Black Brook. .

Potash Brook.

tfestfield

River.

Unnamed tributary.

Tributary to

French River

She tucket

River.

....do......

Connecticut

River.

.... do ......

.... do ......

.... do ......

.... do ......

East Brookfield

River

(head of

Quaboag

River) .

Quaboag

River.

Chlcopee

River.

Quaboag

River.

.... do ......

.... do ......

.... do ......

Chlcopee

Brook.

Chlcopee

River.

.... do ......

Connecticut

River.

West Branch

Westfleld

River.

Westfleld

River.

Bradley

Brook.

Westfleld

River.

Connecticut

River.

Westfleld

Little

River.

Location

Lat 42°06'17", long 71°55'46", at

dam at outlet of Granite Reservoir, \ mile northwest of South

Charlton, Mass.

Lat 41°46'55". long 71°54'00", at

Dyer Dam, 1$ miles southwest of

Danlelson, Conn.

Lat 41°33'03", long 72°02'30", at

dam of tunnel plant of Connecticut Light & Power Co. near

Taftvllle, Conn.

Lat 42°15'17", long 72°47'15", at

outlet of White Reservoir,

3.5 miles south of Westhampton,

Mass.

Lat 42°12'14", long 72°46'13",

0.2 mile northwest of Russellvllle, Mass., and 0.4 mile

above Sacket Brook.

Lat 42°16'12", long 72°35'14",

1 mile northwest of South Hadley, Mass., and 1 mile above

mouth .

Lat 42°14'55", long 72°34'48",

0.2 mile above Leaping Well

Brook and 1 mile north of South

Hadley, Mass.

Lat 42°14 T 29", long 72°15'59", at

Twomile Bridge, Lj miles southwest of Ware, Mass.

Lat 42°17'39", long 72°02'18", at

outlet of Brooks Pond, 2g miles

northeast of North Brookfield,

Mass.

Lat 42°14'08", long 72°10'29",

0.25 mile above mouth and 1.5

miles west of West Brookfield,

Mass.

Lat 42°13'03", long 7Z°11'36", at

bridge on old West Brookfield

Road at Warren, Mass., 1.2

miles above Cherry Brook.

Lat 42 8 13'OZ", long 72°13'16", at

West Warren, Mass., 0.1 mile

above mouth.

Lat 42 "10 '22", long 72° 14' 58", at

West Brlmfield, Mass., 0.8 mile

above mouths

Lat 42°07'42", long 7Z°15'32", at

dam 1.2 miles southeast of

Fentonville, Mass., and 1.4

miles above mouth.

Lat 42°05'01", long 72°18'57", at

dam 50 ft above Maple Street

Bridge at South Monson, Mass.

and 0.2 mile above Conant

Brook.

Lat 42°04'24", long 72°17'42", at

Monson Reservoir dam, 1.4 miles

southeast of South Monson,

Mass, and 1.6 miles from mouth.

Lat 42°13'34", long 72°24'll" ] at

Belchertown-Ludlow town line,

3.5 miles south of Belchertown,

Mass.

Lat 42°08'25", long 72°23'41",

0.4 mile above Maxwell Brook

and 1.8 miles southeast of

North Wilbraham, Mass.

Lat 42°05'39", long 72° 34 '03", at

Hancock Street Bridge at Springfield, Mass., 0.25 mile below

tfatershops Pond (discontinued).

Lat 4Z°16'42", long 72°59'03", at

Chester, Mass., { mile above

mouth.

Lat 42°10'59", long 72°52'26",

1 mile southwest of Russell,

Mass, and 1.4 miles above

mouth.

Lat 42 0 11'47", long 72°S2'29",

0.8 mile above Stage Brook and

1 mile northwest of Russell,

Mass.

Lat 42°10'14", long 72°53'15", at

Blandford-Russell town line,

2.1 miles east of Blandford,

Mass.

Lat 42°09'56", long 72°49'47", at

dam at Woronoco, Mass.

Lat 42°06'56", long 72°54'15", at

Cobble Mountain Reservoir,

4 miles northwest of Granville ,

Mass.

Drainage 

area 

(sq mi)

7.97

465

743

4.41

15.1

31.1

19. Z

191

13.2

4.47

134

2.04

7.38

6.65

4.68

7.94

7.07

8.56

33.9

17.7

5.21

2.97

1.53

351

.66

Measured 

previously 

(water 

years)

1936,1938

1936,1938

1938

1938-51

Date

Aug. 19

Aug. 19

Aug. 20

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Discharge 

(cfs)

2,060

43,900

40,700

1,080

9,350

5,320

1,920

9,530

1,730

4,140

4,730

1,670

5,860

5,900

1,700

5,600

4,740

8,690

1,960

5,220

4,910

1,760

1,210

61,500

415
256 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATION,?

Determinations of peak discharge during water year October 1955 to September 1955 Continued

Stream

Cooks Brook. .

Dlcklnson

Brook (head

of Munn

Brook)

Westfield

Little

River.

Powdermlll

Brook.

Great Brook. .

Clay Brook. . .

Stony Brook. .

Scantlc

River.

Pall River. . .

Silver Brook.

Clam River. . .

West Branch

Farming ton

River.

Mad River. . . .

Colebrook

Brook .

Highland Lake

Outlet.

Sandy Brook. .

Morgan Brook.

Hubbard River

Valley Brook.

Beaver Brook.

Parmlngton

River.

East Branch

Salmon

Brook.

West Branch

Salmon

Brook. 

North Branch

Park River

Salmon Creek

Blrdseye

Brook.

Tributary to

Westfleld

Little

River.

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

Westfleld

River.

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

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

Muddy Brook. .

Connecticut

River.

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

West Branch

Parralngton

River.

Clam River. . .

West Branch

Parmlngton

River.

Parmlngton

River.

Still River..

Indian Meadow

Brook.

Mad River. . . .

Still River. .

West Branch

Parmlngton

River.

East Branch

Parmlngton

River.

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

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

Connecticut

River.

Salmon Brook.

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

Park River. . .

Housatonlc

River.

Purnace Brook

Location

Lat 42°06'56", long 72°50'26", at

West Parish, Mass., 0.3 mile

north of Westfleld-Granvllle

town line.

Lat 42°04'47", long 72°50'42",

j- mile above Munn Brook and

li miles northeast of Granvllle, Mass.

Lat 42°07'10", long 72°47'10", at

Stevens Paper Co. dam at Westfield, Mass., 1.0 mile above

Jacks Brook.

Lat 42°09'45", long 72°45'49",

2.9 miles north of Westfleld,

Mass, and 4.6 miles above

mouth .

Lat 42°03'05", long 72°45'4l", at

Longyard Road, 0.55 mile southeast of Southwlck, Mass.

Lat 41° 59 '54", long 72°39'12", at

culvert on Russell Ave., 0.5

mile west of State Highway 75

and 1.1 miles north of Suffleld, Conn.

Lat 41°5S'18", long 72°39'29",

400 ft downstream from State

Highway 75 and 0.8 mile south

of Suffleld, Conn.

Lat 41°5S'58", long 72°30'59", at

bridge on State Highway 191,

0.1 mile south of State Highway

20 In Scltlco, Conn.

Lat 42°09'35", long 73°03'35", at

outlet of Otls Reservoir,

J. mile above mouth and 1 mile

northeast of Cold Spring, Mass.

Lat 42°05'38", long 73°06'13",

0.6 mile southwest of West New

Boston, Mass, and 0.6 mile

above mouth.

Lat 42°06'01", long 73°05'43", at

West New Boston, Mass., 0.2

mile below Buck River.

Lat 41°58'43", long 73°01'H",

1.5 miles north of Rlverton,

Conn.

Lat 41° 55 '55", long 73°05'32", In

gorge along U. S. Highway 44,

lj miles west of Wlnsted, Conn.

Lat 41°56'14", long 73°05'll",

500 ft upstream from bridge on

State Highway 183 and 1 mile

northwest of Wlnsted, Conn.

Lat 41°55'22", long 73S 04'58", at

Highland Lake Dam, 0.5 mile

west of Wlnsted, Conn.

Lat 41°59'21", long 73°03'10" J at

bridge on Sandy Brook Road, 0.8

mile northwest of Robertsvllle,

Conn.

Lat 41°54'42", long 73°00'3l", at

culvert on U. S. Highway 44,

3 miles east of Wlnsted, Conn.

Lat 42°02'08", long 72°56'18", at

culvert on State Highway 20,

2j miles northeast of West

Hartlandj Conn.

Lat 42°02'03", long 72°55'49", at

culvert on State Highway 20,

25 miles northeast of West

Hartland, Conn.

Lat 41°55'18", long 72°58'19", at

bridge on State Highway 181,

0.5 mile southwest of Barkhamsted, Conn.

Lat 41°47'30", long 72°55'29",

1.3 miles south of Collinsville, Conn.

Lat 42°00'02", long 72°50'03", at

bridge on Silver St. near State

Highway 189, 0.4 mile north of

North Granby, Conn.

Lat 41°57'35", long 72°51'03", in

Huggins Gorge, 0.5 mile northwest of West Granby, Conn. 

Lat 41°48'16", long 72°43'24",

near Bloomfiled-West Hartford

town line, Conn.

Lat 41°56'30", long 73°23'28", at

bridge on Brinton Road, 0.6

mile north of Lime Rock, Conn.

Lat 41°49'58", long 73°19'17",

300 ft downstream from Great

Hollow Road and 0.9 mile southeast of Cornwall, Conn.

Drainage 

area 

(sq mi)

0.32

6.42

77.7

2.50

19.3

.69

36.9

66.0

17.2

6.52

29.3

128

19.7

2.84

7.30

31.1

6.39

19.9

7.20

5.31

360

13.2

11.7

18.6

30.1

3.88

Measured 

previously (water Date 

years )

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

1938 Aug. 19

1936 Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

1936,1938 Aug. 19

Aug. 19

4ug. 19

4ug. 19

1949 4ug. 19

4ug. 19

Discharge

(=f 3)

218

5,750

21, 700

5,740

3,610

531

17,300

15,400

1,320

4,370

12,100

57,200

10,200

1,660

4,050

10,100

2,510

10, 500

8, 260

3,350

140,000

14,300

10,500

7,980

6,300

1,300
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 

Determinations of peak discharge during water year October 1955 to September 1955 Continued

257

Stream

Furnace Brook

West Aspetuck

River.

Still River..

Bantam River.

Sprain Brook.

Nonewaug

River.

Transylvania

Brook.

West Branch

Naugatuck

River.

East Branch

Naugatuck

River.

Branch Brook.

Naugatuck

River.

Hancock Brook

Steel Brook .

Mad River

Hop Brook. . . .

Tributary to

Housatonic

River.

Aspetuck

River.

Housatonic

River.

Shepaug River

Weekeepeemee

River.

Pomperaug

River.

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

Naugatuck

River.

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

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

Long Island

Sound.

Naugatuck

River.

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

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

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

Location

Lat 41°49'06", long 73°22'll", at

culvert on State Highway 4 in

Cornwall Bridge, Conn.

Lat 41°37'14", long 73°25'18", at

bridge on State Highway 129 at

Hurds Corner, 2 miles southeast

of Merryall, Conn.

Lat 41°24'00", long 73°25'44",

500 ft upstream from U. S.

Highway 6 bridge at Danbury,

Conn.

Lat 41°44'46", long 73° 10 '47",

400 ft downstream from East

Litchfield Road and 0.5 mile

east of Litchfield, Conn.

Lat 41°35'13", long 73°15'12",

600 ft upstream from State

Highway 47 and 2 . 5 miles

northwest of Hotchklssvlllej

Conn.

Lat 41° 33 '19", long 73° 12 "05", at

bridge on U. S. Highway 6, 0.9

mile northeast of Woodbury,

Conn.

Lat 41°29'58", long 73°15'25", at

bridge on State Highway 172,

Z miles north of South Britain,

Conn.

Lat 41°50'03", long 73°08'55", at

Stillwater Pond dam, 1.1 miles

northwest of West Torrington,

Conn.

Lat 41°49'24", long 73°07'23",

5- mile north of junction of

Newfield Road and State Highway

8 in Torrington, Conn.

Lat 41°39'27", long 73°06'17", at

bridge on State Highway 109,

1.8 miles southwest of Thomaston, Conn.

Lat 41°36'37", long 73°03'35",

0.4 mile downstream from Frost

Bridge and 4.0 miles north of

Waterbury, Conn.

Lat 41°36'10", long 73°02'46",

1.7 miles upstream from mouth

and 3.4 miles north of Waterbury, Conn.

Lat 41°35'11", long 73°04'43", at

Falls Avenue Bridge, Oakville,

Conn.

Lat 41°32'58", long 73°00'24", at

Pine Grove Cemetery, Fair Lawn

section of Waterbury, Conn. 

Lat 41°30'21", long 73°03'31", at

American Brass Co. bridge, 1.4

miles north of Naugatuck, Conn.

Drainage 

area 

(sq mi)

13.5

16.6

38.3

20.6

6.91

25.6

2.45

24.2

10.2

21.0

138

12.9

12.9

13 * 0

16.5

Measured 

previously 

(water 

years )

1945,1949

Date

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. 19

Aug. IF

Discharge 

(cfs)

4,060

1,830

2,770

10,100

2,980

12,300

839

11,900

6,210

10,300

75,900

4,870

5,890

2,070

2,650
INDEX

Page 

Aberjona River at Winchester, Mass.... 115

Accuracy of field data and computed

results......................... 7

Acre-foot, definition of.............. 2

Adamsville Brook at Adamsville, R. I.. 121 

Agencies other than Geological Survey,

records collected by............ 11

Allagash River near Allagash, Maine... 15 

Ambajejus Lake, Maine, contents of.... 40

Amherst, Maine, West Branch Union

River at........................ 28

Ammonoosuc River, at Bethlehem

Junction, N. H.................. 163

near Bath, N. H..................... 164

Androscoggin Kiver, at Errol, N. H.... 56

at Rumford, Maine................... 58

near Auburn, Maine.................. 63

near Gorham, N. H................... 57

Androscoggin River basin, Maine,

gaging-station records in....... 55-65

reservoirs in....................... 65-66

Antrim, N. H., North Branch Concoocook

River near...................... 89

Aroostoolc River at Washburn, Maine.... 20

Ashland, Maine, Machias River near.... 19

Ashland, N. H., Squam River at........ 81

Ashuelot River, at Hlnsdale, N. H..... 188

below Surry Mountain Dam, near

Keene, N. H..................... 185

near Gilsum, N. H................... 184

South Branch, at Webb, near Marlboro, N. H...................... 187

Assabet River at Maynard, Mass ........ 107

Athol, Mass., East Branch Tully River

near............................ 193

Auburn, Maine, Androscoggin River

near............................ 63

Little Androscoggin River near...... 62

Auburn, N. H., Clark Brook at......... 100

Austin Stream at Bingham, Maine....... 47

Ayers Brook at Randolph, Vt........... 169

Aziscohos Lake, Maine, contents of.... 65-66

Baileyville, Maine, St. Croix River

near............................ 24

Baker River near Rumney, N. H......... 79

Barkhamsted Reservoir, Conn., contents

of.............................232-233

Barre, Mass., Ware River near......... 202

Bath, N. H., Ammonoosuc River near.... 164

Beards Brook near Hillsboro, N. H..... 90

Bethel, Vt., White River near......... 168

Bethlehem Junction, N. H., Ammonoosuc

River at....................... 163

Bingham, Maine, Austin Stream at...... 47

Kennebec River at................... 48

Birch Hill Reservoir, Mass., contents

of............................232,233

Black River at North Springfield, Vt.. 176 

Blackberry River at Canaan, Conn...... 240

Blackstone River, at Northbridge,

Mass........................... 127

at Woonsocket, R. I................. 129

Blackwater Reservoir, N. H., contents

of............................. Ill

Blackwater River near Webster, N. H... 93 

Borden Brook Reservoir, Mass., conr

tents of......................232,233

Branch River at Forestdale, R. I...... 128

Brassua Lake, Maine, contents of...... 53

Bristol, N. H., Smith River near...... 82

Broad Brook, Conn., Scantic River at.. 217 

Brockway Mills , Vt., Williams River

at............................. 177

Buffumville, Mass., Little River at... 148 

Burlington Brook near Burlington,

Conn........................... 221

Byfield, Mass., Parker River at....... 112

Canaan, Conn., Blackberry River at.... 240 

Canton, Mass., East Branch Neponset

River at....................... 120

Page 

Caribou Lake, Maine, contents of....... 40

Carrabasset River near North Anscn,

Maine............................ 49

Cathance River near Topsham, Maire..... 64

Centerdale, R. I., Woonasquatucket

River at......................... 130

Cfs-day, definition of................. 3

Chamberlain Lake, Maine, contents of... 40 

Charlemont, Mass., Deerfield River at.. 197 

Charles River, at Charles River Village,

Mass............................. 116

at Waltham, Mass..................... 118

Charles River basin, Mass., gagirgstation records in..............116-118

Charles River Village, Mass., Charles

River at......................... 116

Cherryfield, Maine, Narraguagus Fiver

at............................... 27

Chesuneook Lake, Maine, contents of.... 40

Chicopee River at Indian Orchard, Mass. 209 

Clark Brook at Auburn, N. H............ 100

Clinton, Conn., Menunketesuck River

near............................. 234

Clinton, Mass., South Branch Nasl-ua

River at......................... 104

Cobble Mountain Reservoir, Mass., contents of........................232 ,233

Cobbosseecontee Stream at Gardiner,

Maine............................ 52

Cochituate, Mass., Lake Cochituate Outlet at........................... 108

Cold River at Drewsville, N. H......... 180

Coldbrook, Mass., Ware River at........ 203

Coltsville, Mass., East Branch

Housatonic River at.............. 237

Columbia, Conn., Hop River near........ 139

Comerford Station Pond, Vt., contents

of..............................232,233

Computations, accuracy of results

of............................... 7

Concord, N. H., Soucook River near..... 95

Concord River below River Meadow Brook,

at Lowell, Mass.................. 109

Connecticut River, at First Connecticut

Lake, near Pittsburg, N. H....... 155

at Montague City, Mass............... 200

at North Stratford, N. H............. 156

at North Walpole, N. H............... 179

at Thompsonville, Conn............... 216

at Turners Palls, Mass............... 196

at Vernon, Vt........................ 183

at Wells River, Vt................... 165

at White River Juntion, Vt........... 171

near Dalton, N. H.................... 158

Connecticut River basin, Conn.-Mass.-

N. H.-Vt., gaging-station records 

in..............................155-233

reservoirs in.......................232-233

Connors, Mew Brunswick, St. Francis

River near....................... 16

Contents, definition of................ 3

Contoocook River, at Penacook, N. H.... 94

at Peterboro, N. H................... 87

near Henniker, N. H.................. 91

North Branch, near Antrim, H. H...... 89

Control, definition of................. 3

Conway, N. H., Saco River near......... 69

Cooperation, record of................. 1-2

Cornish, Maine, Ossipee River at....... 71

Saco River at........................ 72

Cranston, R. I., Pawtuxet River at..... 132

Crystal Lake, N. H., contents of....... 233

Cubic feet per second per square mile,

definition of.................... 2

Cubic foot per second, definition of... 2

Dalton, N. H., Connecticut River near.. 158

Data, accuracy of...................... 7

explanation of....................... 3-7

Davisville, H. H.,-Warner River at...,. 92

Dead River, at The Forks, Maine........ 46

near Dead River, Maine............... 45

259
260 INDEX

Dedham, Mass., Mother Brook at........ 117

Deerfield River, at Charlemont, Mass.. 197 

near West Deerfield, Mass ........... 199

Diamond River near Wentworth Location,

tf. H............................ 55

Dickey, Maine, St. John River at...... 14

Discharge measurements:

Menunketesuck River basin........... 254

Quinnipiac River basin.............. 254

Mote. Streams for which only discharge measurements are available 

are not entered by name In this 

index. 

Dover-Poxcroft, Maine, Plscataquis

River near...................... 12,32

Drainage area, definition of.......... 3

Drewsvllle, N. H., Cold River at...... 180

Durham, N. H., Oyster River near...... 76

East Branch Reservoir, Conn., contents of....................... 238-233

East Greenwich, R. I., Potowomut River

near............................ 133

East Hampton, Conn., Salmon River

near............................ 229

East Hartford, Conn., Hockanum River

near............................ 228

East Haven, Vt., East Branch

Passumpslc River near........... 159

East Machlas River near East Machias,

Maine........................... 26

East Outlet, Maine, Moosehead Lake at. 42

East Pepperell, Mass., Nashua River at 106

Efflngham Palls, N. H., Osslpee River

at.............................. 70

Eightmlle River, at North Plain, Conn.. 230 

East Branch, near North Lyme,

Conn............................ 231

Elbow Lake, Maine, contents of........ 40

Errol, N. H., Androscoggin River

at.............................. 56

Ervlng, Mass., Millers River at....... 195

Palls Village, Conn., Housatonic River

at.............................. 241

Parmington River, at Rainbow, Conn.... 224

West Branch, at Rlverton, Conn...... 220

near New Boston, Mass............. 218

First Connecticut Lake, N. H., contents of.......................232,233

First Roach Pond, Maine, contents of.. 53-54 

Pish River near Port Kent, Maine...... 17

Five Mile River at Killlngly, Conn.... 151

Flagstaff Lake, Maine, contents of.... 53-54

Floods, special reports on............ 11

Forestdale, R. I., Branch River at.... 128

Forestvllle, Conn., Pequabuck River

at..............................4, 222

Fort Kent, Maine, Pish River near..... 17

St. John River at................... 18

Framingham Center, Mass., Sudbury

River at........................ 108

Franklin Palls Reservoir, N. H., contents of........................ Ill

Franklin Junction, N. H., Merrimack

River at........................ 86

French River at Webster, Mass......... 149

Gardlner, Maine, Cobbosseecontee

Stream at....................... 52

Gaylordsvllle, Conn., Housatonic

River at........................ 243

Tenmlle River near.................. 242

Glbbs Crossing, Mass., Ware River at.. 204 

Gilsum, N. H., Ashuelot River near.... 184

Goffstown, N. H., Plscataquog River

near............................ 98

South Branch Plscataquog River near. 97 

Goose Pond, N. H., contents of........ 232

Gorham, N. H., Androscoggin River near 57 

Goss Heights, Mass., Middle Branch

Westfield River at.............. 212

Grafton Pond, N. H., contents of...... 232

Granby, Conn., Salmon Brook near...... 223

Grand Lake, Maine, contents of........ 40

Grand Lake Stream at Grand Lake

Stream, Maine................... 23

Great Barrington, Mass., Green River

near............................ 239

Housatonic River near............... 238

Great Brook at Poquonock Bridge,

Conn............................. 137

Green River near Great Barrirgton,

Mass............................. 239

Grindstone, Maine, East Branch Penobscot River at.................... 29

Grovaton, N. H.,Upper Ammonocsuc River

near............................. 157

Gulf Island Pond, Maine, contents of... 65-66

Hanover, Conn., Little River near...... 145

Hardwick, Mass., East Branch Swift

River near....................... 206

Harrlman Reservoir, Vt., contents

of..............................232 ,233

Hartford, Conn., North Brand- Park

River at......................... 226

Park River at........................ 227

South Branch Park River at........... 225

Henniker, N. H., Contoocook Fiver near. 91 

Hillsboro, N. H., Beards Brook near.... 90

Hinsdale, N. H., Ashuelot River at..... 188

Hockanum River near East Hartford,

Conn............................. 228

Hop Brook near New Salem, Mass......... 205

Hop River near Columbia, Conn.......... 139

Hope Valley, R. I., Wood River at...... 135

Houlton, Maine, Meduxnekeag River near. 21 

Housatonic River, at Falls Village,

Conn............................. 241

at Gaylordsvllle, Conn............... 243

at Stevenson, Conn................... 248

East Branch, at Coltsvllle, Mass..... 237

near Great Barrington, Mass.......... 238

Housatonic River basin, Conn.-Mass.,

gaglng-statlon records In.......237-252

reservoirs In........................ 252

Huntington, Mass., West Branch Westfield River at................... 213

Hydrologlc conditions.................. 12

diagram of........................... 12

Indian Orchard, Mass., Chlcotiee River

at............................... 209

Indian Pond, Maine, contents of........ 54

Ipswich River, at South Mlddleton,

Mass............................. 113

near Ipswich, Mass ................... 114

Ipswich River basin, Mass., gagingstation records In..............113-114

Jamaica, Vt., West River at............ 181

Jewett City, Conn., Quinebaw; River at.12 ,153

Keene, N. H., Ashuelot River near...... 185

Otter Brook near.....................4 , 186

Kenduskeag Stream near Kendu-3keag,

Maine............................ 39

Kennebago Lake, Maine, contents of..... 65

Kennebec River, at Blngham, Maine...... 48

at Moosehead, Maine.................. 43

at The Forks, Maine.................. 44

Kennebec River basin, Maine, gaglngstatlon records in............... 42-53

reservoirs in........................ 53-54

Kettle Brook at Worcester, Mass........ 125

Klllingly, Conn., Five Mile River

at............................... 151

Knlghtville, Mass., Sykes Brook at..... 211

WestfIeld River at................... 210

Knightvllle Reservoir, Mass., contents

of..............................232,233

Lake Auburn, Maine, contents of........ 65-66

Lake Candlewood (Rocky River Reservoir),

Conn., contents of............... 252

Lake Cochituate Outlet at Cochituate,

Mass............................. 108

Lake Francis, N. H., contents of......232 ,233

Lake Llllinonah, Conn., contents of.... 252

Lake Wentworth, N. H., contents

of............................... Ill

Lake Winnipesaukee at The Weirs, N. H.. 83 

Lake Winnipesaukee Outlet at Lakeport,

N. H............................. 84

Lake Zoar, Conn., contents cf.......... 252

Lakeport, N. H., Lake Winnipesaukee

Outlet at........................ 84

Lamprey River near Newmarket, N. H..... 77

Lanesville, Conn., Still River near.... 244
INDEX 261

Page

Leadmine Brook near Thomaston, Conn... 250 

Leominster, Mass., North Nashua River

near............................ 102

Little Androscoggin River, near Auburn,

Maine........................... 62

near South Paris,

Maine........................... 61

Little Ossipee River near South Limington .Maine................... 73

Little River (tributary to French

River) at Buffumville, Mass..... 148 

Little River (tributary to Shetucket

River) near Hanover, Conn....... 145

Lowell, Maine, Passadumkeag River at.. 37 

Lowell, Mass., Concord River at....... 109

Merrimack River at. 110 

Ludlow Reservoir, Mass., contents of.232,233

MacDowell Reservoir, N. H., contents

of.............................. Ill

Machias River (tributary to Aroostook

River) near Ashland, Maine...... 19

Machias River (tributary to Atlantic

Ocean) at Whitneyville, Maine... 25 

Machias River basin, Maine, gagingstation records in.............. 25-26

Manchester, N. H., Merrimack River

below........................... 99

Mansfield Hollow Reservoir at Mansfield Hollow, Conn.............. 142

Map of the United States.............. 9

Marlboro, N. H., South Branch Ashuelot

River near...................... 187

Mascoma Lake, N. H., contents of...... 232

Mascoma River, at Mascoma, N. H....... 173

at West Canaan, N. H................ 172

Mascoma River basin, N. H., lakes and

ponds in, contents of.........232,233

Massabesic Lake, N. H., contents of... Ill 

Mattawamkeag, Maine, Mattawamkeag

River near...................... 31

Penobscot River near................ 30

Mattawamkeag River near Mattawamkeag,

Maine........................... 31

Maynard, Mass., Assabet River at...... 107

Medford, Maine, Piscataquis River at.. 35 

Meduxnekeag River near Houlton, Maine. 21 

Menunketesuck River near

Clinton, Conn................... 234

Menunketesuck River basin, Conn., discharge measurements in.......... 254

Mercer, Maine, Sandy River near....... 50

Merrimack, N. H., Souhegan River at... 101 

Merrimack River, at Franklin Junction, 

N. H............................

below Concord River, at Lowell,

Mass............................ 110

near Goffs Palls, below Manchester,

N. H............................ 99

Merrimack River basin, Mass.-N. H.,

gaging-station records in.......78-111

reservoirs in....................... Ill

Merrymeeting Lake, N. H., contents of. Ill 

Mill River at Northhampton, Mass......4, 201

Millers River, at Erving, Mass........ 195

at South Royalston, Mass............ 192

near Winchendon, Mass ............... 190

Milo, Maine, Pleasant River near...... 34

Montague City, Mass., Connecticut

River at........................ 200

Moose Pond, Maine, contents of........ 40

Moose River, at St. Johnsbury, Vt..... 161

at Victory, Vt...................... 160

Moosehead, Maine, Kennebec River at... 43 

Moosehead Lake at East Outlet, Maine.. 42 

Mooselooktneguntic Lake, Maine, contents of........................ 65

Moosup River at Moosup, Conn.......... 152

Morris Reservoir, Conn., contents of.. 252 

Moss Brook at Wendell Depot, Mass..... 194

Mother Brook at Dedham, Mass.......... 117

Mount Hope River near Warrenville,

Conn............................ 141

Mousam River near West Kennebunk,

Maine........................... 74

Moxie Pond, Maine, contents of........ 54

Narraguagus River at Cherryfield,

Maine........................... 27

Page

Nashua River, at East Pepperell, Mass.. 106 

South Branch, at Clinton, Mass....... 104

Natchaug River at Willimantic, Conn.... 143

Naugatuck River, near Naugatuck, Conn.. 251 

near Thomaston, Conn................. 249

tfepaug Reservoir, Conn., contents of..232-233 

Neponset River, at Norwood, Mass....... 119

East Branch, at Canton, Mass......... 120

Neponset River basin, Mass., gagingstation records in..............119-120

New Boston, Mass., West Branch Farmington River near................ 218

lew Salem, Mass., Hop Brook near....... 205

Newfane, Vt., West River at............ 182

Sewfound Lake, N. H., contents of...... Ill

Newmarket, N. H., Lamprey River rear... 77 

Sezinscot River at Turner Center, Maine 60 

Ninemile Bridge, Maine, St. John River

at............................... 13

North Anson, Maine, Carrabassett River

near............................. 49

North Chichester, N. Y., Suncook River

at............................... 96

North Grafton, Mass., Quinsigamord

River at......................... 126

North Hartland , Vt., Ottauquechee River

at............................... 174

North Lyme, Conn., East Branch Eightmile River near.................. 231

North Nashua River near Leominster,

Mass............................. 102

North Plain, Conn., Eightmile River at. 230 

North River at Shattuckville, Mas?..... 198

North Springfield, Vt., Black River at. 176 

North Stratford, N. H., Connecticut

River at......................... 156

Worth Twin Lake, Maine, contents of.... 40

North Walpole, N. H., Connecticut

River at......................... 179

North Whitefield, Maine, Sheepscot

River at......................... 41

Northampton, Mass., Mill River at......4, 201

Northbridge, Mass., Blackstone River

at............................... 127

Norton, Mass., Wading River near....... 124

Norwood, Mass., Neponset River at...... 119

Nubanusit Brook near Peterboro, N. H... 88

Ompompanoosuc River at Union Village,

Vt............................... 167

Order, downstream, of listing of

gaging stations.................. 3

Ossipee River, at Cornish, Maine....... 71

at Effingham Falls, N. H............. 70

Otis Reservoir, Mass., contents of....232 ,233

Ottauquechee River at North Hartland,

Vt............................... 174

Otter Brook near Keene, N. H...........4, 186

Oyster River near Durham, N. H......... 76

Park River, at Hartford, Conn.......... 227

North Branch, at Hartford, Conn...... 226

South Branch, at Hartford, Conn...... 225

Parker River at Byfield, Mass .......... 112

Passadumkeag, Maine, Penobscot River

at............................... 38

Passadumkeag River at Lowell, Maine.... 37

Passumpsic River, at Passumpsic, Vt.... 162

East Branch, near East Haven, V1;..... 159

Pawcatuck River, at Westerly, R. I..... 136

at Wood River Junction, R. I......... 134

Pawcatuck River basin, R. I., gagingstation records in..............134-136

Pawtuxet River, at Cranston, R. I...... 132

South Branch, at Washington, R. I.... 131

Pawtuxet River basin, R. I., gagiigstation records in..............131-132

Pemadumcook Lake, Maine, contents of... 40

Pemigewasset River, at Plymouth, N. H.. 80

at Woodstock, N. H................... 78

Penacook, N. H., Contoocook River

at............................... 94

Pennesseewassee Lake, Maine, contents

of............................... 65-66

Penobscot River, at Passadumkeag,

Maine............................ 38

at West Enfield , Maine............... 36

East Branch, at Grindstone, Maine.... 29

near Mattawamkeag, Maine............. 30
262 INDEX

Penobscot River basin, Maine, gagingstation records in.............. 29-40

reservoirs in....................... 40

Pequabuck River at Forestville, Conn..4, 222

Peterboro, N. H., Contoocook River at. 87

Nubanus it Brook near................ 88

Plscataqua River basin, Maine-N. H.,

gaging-station records in....... 75-77

Piscataquis River, at Medford, Maine.. 35 

near Dover-Foxcroft, Maine.......... 12,32

Piscataquog River, near Goffstown,

N. H............................ 98

South Branch, near Goffstown, N. H.. 97 

Pitch Reservoir, Conn., contents of... 252 

Pittsburg, N. H., Connecticut River

near............................ 155

Plttsfield, Maine, Sebasticook River

near............................ 51

Pleasant River near Milo, Maine....... 34

Plymouth, N. H., Pemigewasset River

at.............................. 80

Pomperaug River at Southbury, Conn.... 247

Poquonock Bridge, Conn., Great Brook

at.............................. 137

Potowomut River near East Greenwich,

R. I............................ 133

Presumpscot River at outlet of Sebago

Lake, Maine..................... 68

Priest Brook near Winohendon, Mass.... 191

Providence River basin, Mass.-R. I.,

gaging-station records in......125-130

Publications, on streamflow by Geological Survey..................... 8-11

by State agencies ................... 11

Putnam, Conn., Quinebaug River at..... 150

Quabbin Reservoir, Mass., contents

of. . ... 232 233

Quaboag River at West Brimfieid, Mass. *208 

Quinebaug River, at Jewett City,

Conn............................12,153

at Putnam, Conn..................... 150

at Quinebaug, Conn.................. 147

at Westville, Mass .................. 146

Quinniplac River at Wallingford,

Conn...........................235-236

Quinsigamond River at North Grafton,

Mass............................ 126

Rainbow, Conn., Farmington River at... 224 

Randolph, Vt., Ayers Brook at......... 169

Rangeley Lake, Maine, contents of..... 65

Richardson Lakes, Maine, contents of.. 65 

Ripogenus Lake, Maine, contents of.... 40

Riverton, Conn., West Branch Farmington River at.................... 220

Robertsville, Conn., Still River at... 219 

Rocky Brook near Sterling, Mass ....... 103

Rocky River Reservoir, Conn. See Lake

Candlewood. 

Round Pond, Maine, contents of........ 40

Roxbury, Conn., Shepaug River near.... 246

Roxbury, Maine, Swift River near...... 59

Royal River at Yarmouth, Maine........ 67

Rumford, Maine, Androscoggin River at. 58 

Rumney, N. H., Baker River near....... 79

Runoff in inches, definition of....... 2

Saco River, at Cornish, Maine......... 72

near Conway, N. H................... 69

Saco River basin, Maine-N. H., gagingstation records in.............. 69-73

Safford Brook near Woodstock Valley,

Conn............................ 140

St. Croix River, at Vanceboro, Maine.. 22 

near Baileyville, Maine............. 24

St. Croix River basin, Maine, gagingstation records in.............. 22-24

St. Francis River at outlet of Glazier 

Lake, near Connors, New Brunswick.. .......................... 16

St. John River, at Dickey, Maine...... 14

at Ninemile Bridge, Maine........... 13

below Fish River, at Fort Kent,

Maine........................... 18

St. John River basin, Maine, New 

Brunswick, gaging-station 

records in...................... 13-21

St. Johnsbury, Vt., Moose River at.... 161

Page 

Salmon Brook near Granby, Conn......... 223

Salmon Falls River near South Lebanon,

Maine............................ 75

Salmon River near East Hampton, Conn... 229 

Sandy River near Mercer, Maine......... 50

Saugatuck River near Westport, Conn.... 253

Saxtons River at Saxtons River, Vt..... 178

Scantic River at Broad Brook, Conn..... 217

Sebago Lake, Maine, Presumpscot River

at outlet of..................... 68

Sebasticook River near Plttsfield,

Maine............................ 51

Sebec Lake, Maine, contents cf......... 40

Sebec River at Sebec, Maine............ 33

Second Connecticut Lake, N. ¥., contents of........................232,233

Second Lake, Maine, contents of........ 40

Second Roach Pond, Maine, cor tents of.. 53 

Shattuckville, Mass., North Fiver at... 198 

Sheepscot River at North Whitefield,

Maine............................ 41

Shenipsit Lake, Conn., conterts of..... 233

Shepaug Reservoir, Conn., cortents of.. 252 

Shepaug River, at Woodville, Conn...... 245

near Roxbury, Conn................... 246

Shetucket River near Wlllimarfcic, 

Conn 144 

82 

Somerset Reservoir, Vt., contents of..232 ,233

Smith River near Bristol, N. H.

Soucook River near Concord, I'. H....... 95

Souhegan River at Merrlmack, N. H...... 101

South Coventry, Conn., Willimantic

River near....................... 138

South Lebanon, Maine, Salmon Falls

River near....................... 75

South Limington, Maine, Little Ossipee

River near....................... 73

South Middleton, Mass., Ipswich River

at............................... 113

South Paris, Maine, Little Androscoggin

River near....................... 61

South Royalston, Mass., Millers River

at.......................v....... 192

South Twin Lake, Maine, contents of.... 40

Southbury, Conn., Pomperaug River at... 247 

Spencer Lake, Maine, contents of....... 53-54

Squam River at Ashland, N. H........... 81

Squannacook River near West Groton,

Mass............................. 105

Stage-discharge relation, definition

of............................... 3

State Farm, Mass., Taunton River at.... 122

Sterling, Mass., Rocky Brook near...... 103

Stevenson, Conn., Housatonic River at.. 248 

Still River (Connecticut River basin)

at Robertsville, Conn............ 219

Still River (Housatonic River basin)

near Lanesville, Conn............ 244

Sudbury River at Framingham Center,

Mass............................. 108

Sugar River at West Claremont, N. H.... 175

Sunapee Lake, N. H., contents of..... .232 ,233

Suncook River at North Chichester,

N. H............................. 96

Surry Mountain Reservoir, N. H., contents of........................232,233

Swift River (Androscoggin River basin)

near Roxbury, Maine .............. 59

Swift River (Connecticut River basin) ,

at West Ware, Mass ............... 207

East Branch, near Hardwick, Mass..... 206

Sykes Brook at Knightville, Mass....... 211

Tarbell Brook near Winchendon, Mass.... 189

Taunton River at State Farm, Mass...... 122

Taunton River basin, Mass., gagingstation records in..............122-124

Telos Lake, Maine, contents of......... 40

Tenmile River near Gaylordsville,

Conn............................. 242

Terms and abbreviations, definition of. 2-3

Thames River basin, Conn.-Ma'ss .,

gaging-station records In.......138-154

The Forks , Maine, Dead River at........ 46

Kennebec River at.................... 44

The Weirs, N. H., Lake Winnicesaukee

at............................... 83

Thomaston, Conn., Leadmine B-ook near.. 250 

Naugatuck River near................. 249
INDEX 263

Thompson Lake, Maine, contents of..... 65-66 

Thotnpsonville, Conn., Connecticut

River at........................ 216

Tilton, N. H., Winnipesaukee River at. 85 

Topsham, Maine, Cathance River near... 64 

Tower Hill Pond, N. H., contents of... Ill 

Tully Reservoir, Mass., contents of..232,233 

Tully River, East Branch, near Athol,

Mass............................

Turner Center, Maine, Nezinscot River

at..............................

Turners Palls, Mass., Connecticut

River at........................

193

60

196

Utnbagog Lake, Maine, contents of...... 65-66

Union River, West Branch, at Amherst,

Maine........................... 28

Union Village, Vt., Otnpompanoosuc

River at........................ 167

Union Village Reservoir, Vt., contents

of.............................232 ,233

Upper Ammonoosuc River near Groveton,

N. H...........................

Vanceboro, Maine, St. Croix River at.. 

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

Victory, Vt., Moose River at..........

157

22

183

160

123

124

Wading River, at West Mansfield, Mass 

near Norton, Mass..................

Wallingford, Conn., Quinnipiac River

at.............................235-236

Waltham, Mass., Charles River at...... 118

Ware River, at Coldbrook, Mass........ 203

at Gibbs Crossing, Mass ............. 204

202 

92

near Barre, Mass. 

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

Warrenville, Conn., Mount Hope River 

near............................

Washburn, Maine, Aroostook River at... 

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

141

20

131

Watershops Pond, Mass., contents of..S32,233 

Webster, Mass., French River at....... 149

Webster, N. H., Blackwater River

near............................ 93

Wells River, Vt., Connecticut River at 165 

Wells River at...................... 166

Wells River at Wells River, Vt........ 166

Wendell Depot, Mass., Moss Brook at... 194 

Wentworth Location, N. H., Diamond

River near...................... 55

West Britnfield, Mass., Quaboag River

at.............................. 208

West Canaan, N. H., Mascotna River at.. 172 

West Claretnont, N. H., Sugar River at. 175 

West Deerfield, Mass., Deerfield River

near............................ 199

West Enfield, Maine, Penobscot River

at.............................. 36

West Groton, Mass., Squannacook River

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

West Kennebunk, Maine, Mousam River

near.............................

West Mansfield, Mass., Wading River

at.

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

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

West Ware, Mass., Swift River at. 

Westerly, R. I., Pawcatuck River 

at.

Westfield Little River at outlet of

Cobble Mountain Reservoir, near

Westfield, Mass.

Westfield River, at Knightville, 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...............................

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

near Bethel, Vt......................

White River Junction, Vt., ConnecticTt

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.................

Willimantic River near South Coventry,

Conn.

Wilson Pond, Maine, contents of........

Winchendon, Mass., Millers River near..

Priest Brook near....................

Tarbell Brook near...................

Winchester, Mass., Aberjona River

at...............................

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

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

Wood River Junction, R. I., PawcatucV 

River at.........................

Woodstock, N. H., Pemigewasset River

Woodstock Valley, Conn., Safford

Brook near.

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

Woonasquatucket River at Centerdale,

R. I.

Woonsocket, R. I., Blackstone River 

at............................

Worcester, Mass., Kettle Brook

at.

Work, division of..............

scope of.....................

Wyman Pond, Maine, contents of.

Yantic River at Yantic, Conn.

Page 

170

74

123

181

182

207

136

214

210

212

215

213

253

146

233

170

168

171

25

253

177

143

144

138

40

190

191

189

115

85

135

134

near............................ lOb iiarmouth, Maine, Royal River at.

140

245

130

129

125

2

1

53-54

154

67

&TJ. S. GOVERNMENT PRINTING OFFICE : 1958 O - 447990